1122 files changed, 56389 insertions, 25599 deletions

diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
new file mode 100644
index 000000000000..e4c38152f7f7
--- /dev/null
+++ b/Documentation/RCU/torture.txt
@@ -0,0 +1,122 @@
+RCU Torture Test Operation
+
+
+CONFIG_RCU_TORTURE_TEST
+
+The CONFIG_RCU_TORTURE_TEST config option is available for all RCU
+implementations.  It creates an rcutorture kernel module that can
+be loaded to run a torture test.  The test periodically outputs
+status messages via printk(), which can be examined via the dmesg
+command (perhaps grepping for "rcutorture").  The test is started
+when the module is loaded, and stops when the module is unloaded.
+
+However, actually setting this config option to "y" results in the system
+running the test immediately upon boot, and ending only when the system
+is taken down.  Normally, one will instead want to build the system
+with CONFIG_RCU_TORTURE_TEST=m and to use modprobe and rmmod to control
+the test, perhaps using a script similar to the one shown at the end of
+this document.  Note that you will need CONFIG_MODULE_UNLOAD in order
+to be able to end the test.
+
+
+MODULE PARAMETERS
+
+This module has the following parameters:
+
+nreaders        This is the number of RCU reading threads supported.
+                The default is twice the number of CPUs.  Why twice?
+                To properly exercise RCU implementations with preemptible
+                read-side critical sections.
+
+stat_interval   The number of seconds between output of torture
+                statistics (via printk()).  Regardless of the interval,
+                statistics are printed when the module is unloaded.
+                Setting the interval to zero causes the statistics to
+                be printed -only- when the module is unloaded, and this
+                is the default.
+
+verbose         Enable debug printk()s.  Default is disabled.
+
+
+OUTPUT
+
+The statistics output is as follows:
+
+        rcutorture: --- Start of test: nreaders=16 stat_interval=0 verbose=0
+        rcutorture: rtc: 0000000000000000 ver: 1916 tfle: 0 rta: 1916 rtaf: 0 rtf: 1915
+        rcutorture: Reader Pipe:  1466408 9747 0 0 0 0 0 0 0 0 0
+        rcutorture: Reader Batch:  1464477 11678 0 0 0 0 0 0 0 0
+        rcutorture: Free-Block Circulation:  1915 1915 1915 1915 1915 1915 1915 1915 1915 1915 0
+        rcutorture: --- End of test
+
+The command "dmesg | grep rcutorture:" will extract this information on
+most systems.  On more esoteric configurations, it may be necessary to
+use other commands to access the output of the printk()s used by
+the RCU torture test.  The printk()s use KERN_ALERT, so they should
+be evident.  ;-)
+
+The entries are as follows:
+
+o       "ggp": The number of counter flips (or batches) since boot.
+
+o       "rtc": The hexadecimal address of the structure currently visible
+        to readers.
+
+o       "ver": The number of times since boot that the rcutw writer task
+        has changed the structure visible to readers.
+
+o       "tfle": If non-zero, indicates that the "torture freelist"
+        containing structure to be placed into the "rtc" area is empty.
+        This condition is important, since it can fool you into thinking
+        that RCU is working when it is not.  :-/
+
+o       "rta": Number of structures allocated from the torture freelist.
+
+o       "rtaf": Number of allocations from the torture freelist that have
+        failed due to the list being empty.
+
+o       "rtf": Number of frees into the torture freelist.
+
+o       "Reader Pipe": Histogram of "ages" of structures seen by readers.
+        If any entries past the first two are non-zero, RCU is broken.
+        And rcutorture prints the error flag string "!!!" to make sure
+        you notice.  The age of a newly allocated structure is zero,
+        it becomes one when removed from reader visibility, and is
+        incremented once per grace period subsequently -- and is freed
+        after passing through (RCU_TORTURE_PIPE_LEN-2) grace periods.
+
+        The output displayed above was taken from a correctly working
+        RCU.  If you want to see what it looks like when broken, break
+        it yourself.  ;-)
+
+o       "Reader Batch": Another histogram of "ages" of structures seen
+        by readers, but in terms of counter flips (or batches) rather
+        than in terms of grace periods.  The legal number of non-zero
+        entries is again two.  The reason for this separate view is
+        that it is easier to get the third entry to show up in the
+        "Reader Batch" list than in the "Reader Pipe" list.
+
+o       "Free-Block Circulation": Shows the number of torture structures
+        that have reached a given point in the pipeline.  The first element
+        should closely correspond to the number of structures allocated,
+        the second to the number that have been removed from reader view,
+        and all but the last remaining to the corresponding number of
+        passes through a grace period.  The last entry should be zero,
+        as it is only incremented if a torture structure's counter
+        somehow gets incremented farther than it should.
+
+
+USAGE
+
+The following script may be used to torture RCU:
+
+        #!/bin/sh
+
+        modprobe rcutorture
+        sleep 100
+        rmmod rcutorture
+        dmesg | grep rcutorture:
+
+The output can be manually inspected for the error flag of "!!!".
+One could of course create a more elaborate script that automatically
+checked for such errors.
diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt
index d17b7d2dd771..a09a8eb80665 100644
--- a/Documentation/cpusets.txt
+++ b/Documentation/cpusets.txt
@@ -94,7 +94,7 @@ the available CPU and Memory resources amongst the requesting tasks.
 But larger systems, which benefit more from careful processor and
 memory placement to reduce memory access times and contention,
 and which typically represent a larger investment for the customer,
-can benefit from explictly placing jobs on properly sized subsets of
+can benefit from explicitly placing jobs on properly sized subsets of
 the system.
 
 This can be especially valuable on:
diff --git a/Documentation/firmware_class/firmware_sample_driver.c b/Documentation/firmware_class/firmware_sample_driver.c
index 4bef8c25172c..d3ad2c24490a 100644
--- a/Documentation/firmware_class/firmware_sample_driver.c
+++ b/Documentation/firmware_class/firmware_sample_driver.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/string.h>
 
 #include "linux/firmware.h"
 
diff --git a/Documentation/firmware_class/firmware_sample_firmware_class.c b/Documentation/firmware_class/firmware_sample_firmware_class.c
index 09eab2f1b373..57b956aecbc5 100644
--- a/Documentation/firmware_class/firmware_sample_firmware_class.c
+++ b/Documentation/firmware_class/firmware_sample_firmware_class.c
@@ -14,6 +14,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/string.h>
 #include <linux/firmware.h>
 
 
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index e94d9c6cc522..cff7b652588a 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -273,6 +273,7 @@ For now, you can ignore the `flags' parameter. It is there for future use.
     if (is_isa) {
 
       /* Discard immediately if this ISA range is already used */
+      /* FIXME: never use check_region(), only request_region() */
       if (check_region(address,FOO_EXTENT))
         goto ERROR0;
 
diff --git a/Documentation/keys.txt b/Documentation/keys.txt
index 4afe03a58c5b..31154882000a 100644
--- a/Documentation/keys.txt
+++ b/Documentation/keys.txt
@@ -196,7 +196,7 @@ KEY ACCESS PERMISSIONS
 
 Keys have an owner user ID, a group access ID, and a permissions mask. The mask
 has up to eight bits each for possessor, user, group and other access. Only
-five of each set of eight bits are defined. These permissions granted are:
+six of each set of eight bits are defined. These permissions granted are:
 
  (*) View
 
@@ -224,6 +224,10 @@ five of each set of eight bits are defined. These permissions granted are:
      keyring to a key, a process must have Write permission on the keyring and
      Link permission on the key.
 
+ (*) Set Attribute
+
+     This permits a key's UID, GID and permissions mask to be changed.
+
 For changing the ownership, group ID or permissions mask, being the owner of
 the key or having the sysadmin capability is sufficient.
 
@@ -242,15 +246,15 @@ about the status of the key service:
      this way:
 
         SERIAL   FLAGS  USAGE EXPY PERM     UID   GID   TYPE      DESCRIPTION: SUMMARY
-        00000001 I-----    39 perm 1f1f0000     0     0 keyring   _uid_ses.0: 1/4
-        00000002 I-----     2 perm 1f1f0000     0     0 keyring   _uid.0: empty
-        00000007 I-----     1 perm 1f1f0000     0     0 keyring   _pid.1: empty
-        0000018d I-----     1 perm 1f1f0000     0     0 keyring   _pid.412: empty
-        000004d2 I--Q--     1 perm 1f1f0000    32    -1 keyring   _uid.32: 1/4
-        000004d3 I--Q--     3 perm 1f1f0000    32    -1 keyring   _uid_ses.32: empty
+        00000001 I-----    39 perm 1f3f0000     0     0 keyring   _uid_ses.0: 1/4
+        00000002 I-----     2 perm 1f3f0000     0     0 keyring   _uid.0: empty
+        00000007 I-----     1 perm 1f3f0000     0     0 keyring   _pid.1: empty
+        0000018d I-----     1 perm 1f3f0000     0     0 keyring   _pid.412: empty
+        000004d2 I--Q--     1 perm 1f3f0000    32    -1 keyring   _uid.32: 1/4
+        000004d3 I--Q--     3 perm 1f3f0000    32    -1 keyring   _uid_ses.32: empty
         00000892 I--QU-     1 perm 1f000000     0     0 user      metal:copper: 0
-        00000893 I--Q-N     1  35s 1f1f0000     0     0 user      metal:silver: 0
-        00000894 I--Q--     1  10h 001f0000     0     0 user      metal:gold: 0
+        00000893 I--Q-N     1  35s 1f3f0000     0     0 user      metal:silver: 0
+        00000894 I--Q--     1  10h 003f0000     0     0 user      metal:gold: 0
 
      The flags are:
 
diff --git a/MAINTAINERS b/MAINTAINERS
index e88d193d42f8..983f9e9aed61 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2286,6 +2286,11 @@ W:	http://tpmdd.sourceforge.net
 L:      tpmdd-devel@lists.sourceforge.net
 S:      Maintained
 
+Telecom Clock Driver for MCPL0010
+P: Mark Gross
+M: mark.gross@intel.com
+S: Supported
+
 TENSILICA XTENSA PORT (xtensa):
 P:      Chris Zankel
 M:      chris@zankel.net
diff --git a/README b/README
index d1edcc7adabe..4ee7dda88ba3 100644
--- a/README
+++ b/README
@@ -54,6 +54,10 @@ INSTALLING the kernel:
 
                 gzip -cd linux-2.6.XX.tar.gz | tar xvf -
 
+   or
+                bzip2 -dc linux-2.6.XX.tar.bz2 | tar xvf -
+
+
    Replace "XX" with the version number of the latest kernel.
 
    Do NOT use the /usr/src/linux area! This area has a (usually
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 67be50b7d80a..6b2921be1909 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -55,10 +55,6 @@
 #include "proto.h"
 #include "irq_impl.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;      /* kernel/timer.c */
 
 static int set_rtc_mmss(unsigned long);
diff --git a/arch/arm/common/amba.c b/arch/arm/common/amba.c
index c6beb751f2a9..e1013112c354 100644
--- a/arch/arm/common/amba.c
+++ b/arch/arm/common/amba.c
@@ -10,6 +10,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index cbf2165476b0..ad6c89a555bb 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -33,8 +33,8 @@
 #include <asm/cacheflush.h>
 
 #undef DEBUG
-
 #undef STATS
+
 #ifdef STATS
 #define DO_STATS(X) do { X ; } while (0)
 #else
@@ -52,26 +52,31 @@ struct safe_buffer {
         int             direction;
 
         /* safe buffer info */
-        struct dma_pool *pool;
+        struct dmabounce_pool *pool;
         void            *safe;
         dma_addr_t      safe_dma_addr;
 };
 
+struct dmabounce_pool {
+        unsigned long   size;
+        struct dma_pool *pool;
+#ifdef STATS
+        unsigned long   allocs;
+#endif
+};
+
 struct dmabounce_device_info {
         struct list_head node;
 
         struct device *dev;
-        struct dma_pool *small_buffer_pool;
-        struct dma_pool *large_buffer_pool;
         struct list_head safe_buffers;
-        unsigned long small_buffer_size, large_buffer_size;
 #ifdef STATS
-        unsigned long sbp_allocs;
-        unsigned long lbp_allocs;
         unsigned long total_allocs;
         unsigned long map_op_count;
         unsigned long bounce_count;
 #endif
+        struct dmabounce_pool   small;
+        struct dmabounce_pool   large;
 };
 
 static LIST_HEAD(dmabounce_devs);
@@ -82,9 +87,9 @@ static void print_alloc_stats(struct dmabounce_device_info *device_info)
         printk(KERN_INFO
                 "%s: dmabounce: sbp: %lu, lbp: %lu, other: %lu, total: %lu\n",
                 device_info->dev->bus_id,
-                device_info->sbp_allocs, device_info->lbp_allocs,
-                device_info->total_allocs - device_info->sbp_allocs -
-                        device_info->lbp_allocs,
+                device_info->small.allocs, device_info->large.allocs,
+                device_info->total_allocs - device_info->small.allocs -
+                        device_info->large.allocs,
                 device_info->total_allocs);
 }
 #endif
@@ -106,18 +111,22 @@ find_dmabounce_dev(struct device *dev)
 /* allocate a 'safe' buffer and keep track of it */
 static inline struct safe_buffer *
 alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
-                        size_t size, enum dma_data_direction dir)
+                  size_t size, enum dma_data_direction dir)
 {
         struct safe_buffer *buf;
-        struct dma_pool *pool;
+        struct dmabounce_pool *pool;
         struct device *dev = device_info->dev;
-        void *safe;
-        dma_addr_t safe_dma_addr;
 
         dev_dbg(dev, "%s(ptr=%p, size=%d, dir=%d)\n",
                 __func__, ptr, size, dir);
 
-        DO_STATS ( device_info->total_allocs++ );
+        if (size <= device_info->small.size) {
+                pool = &device_info->small;
+        } else if (size <= device_info->large.size) {
+                pool = &device_info->large;
+        } else {
+                pool = NULL;
+        }
 
         buf = kmalloc(sizeof(struct safe_buffer), GFP_ATOMIC);
         if (buf == NULL) {
@@ -125,41 +134,35 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
                 return NULL;
         }
 
-        if (size <= device_info->small_buffer_size) {
-                pool = device_info->small_buffer_pool;
-                safe = dma_pool_alloc(pool, GFP_ATOMIC, &safe_dma_addr);
-
-                DO_STATS ( device_info->sbp_allocs++ );
-        } else if (size <= device_info->large_buffer_size) {
-                pool = device_info->large_buffer_pool;
-                safe = dma_pool_alloc(pool, GFP_ATOMIC, &safe_dma_addr);
+        buf->ptr = ptr;
+        buf->size = size;
+        buf->direction = dir;
+        buf->pool = pool;
 
-                DO_STATS ( device_info->lbp_allocs++ );
+        if (pool) {
+                buf->safe = dma_pool_alloc(pool->pool, GFP_ATOMIC,
+                                           &buf->safe_dma_addr);
         } else {
-                pool = NULL;
-                safe = dma_alloc_coherent(dev, size, &safe_dma_addr, GFP_ATOMIC);
+                buf->safe = dma_alloc_coherent(dev, size, &buf->safe_dma_addr,
+                                               GFP_ATOMIC);
         }
 
-        if (safe == NULL) {
-                dev_warn(device_info->dev,
-                        "%s: could not alloc dma memory (size=%d)\n",
-                       __func__, size);
+        if (buf->safe == NULL) {
+                dev_warn(dev,
+                         "%s: could not alloc dma memory (size=%d)\n",
+                         __func__, size);
                 kfree(buf);
                 return NULL;
         }
 
 #ifdef STATS
+        if (pool)
+                pool->allocs++;
+        device_info->total_allocs++;
         if (device_info->total_allocs % 1000 == 0)
                 print_alloc_stats(device_info);
 #endif
 
-        buf->ptr = ptr;
-        buf->size = size;
-        buf->direction = dir;
-        buf->pool = pool;
-        buf->safe = safe;
-        buf->safe_dma_addr = safe_dma_addr;
-
         list_add(&buf->node, &device_info->safe_buffers);
 
         return buf;
@@ -186,7 +189,7 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
         list_del(&buf->node);
 
         if (buf->pool)
-                dma_pool_free(buf->pool, buf->safe, buf->safe_dma_addr);
+                dma_pool_free(buf->pool->pool, buf->safe, buf->safe_dma_addr);
         else
                 dma_free_coherent(device_info->dev, buf->size, buf->safe,
                                     buf->safe_dma_addr);
@@ -197,12 +200,10 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
 /* ************************************************** */
 
 #ifdef STATS
-
 static void print_map_stats(struct dmabounce_device_info *device_info)
 {
-        printk(KERN_INFO
-                "%s: dmabounce: map_op_count=%lu, bounce_count=%lu\n",
-                device_info->dev->bus_id,
+        dev_info(device_info->dev,
+                "dmabounce: map_op_count=%lu, bounce_count=%lu\n",
                 device_info->map_op_count, device_info->bounce_count);
 }
 #endif
@@ -258,13 +259,13 @@ map_single(struct device *dev, void *ptr, size_t size,
                                 __func__, ptr, buf->safe, size);
                         memcpy(buf->safe, ptr, size);
                 }
-                consistent_sync(buf->safe, size, dir);
+                ptr = buf->safe;
 
                 dma_addr = buf->safe_dma_addr;
-        } else {
-                consistent_sync(ptr, size, dir);
         }
 
+        consistent_sync(ptr, size, dir);
+
         return dma_addr;
 }
 
@@ -278,7 +279,7 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
         /*
          * Trying to unmap an invalid mapping
          */
-        if (dma_addr == ~0) {
+        if (dma_mapping_error(dma_addr)) {
                 dev_err(dev, "Trying to unmap invalid mapping\n");
                 return;
         }
@@ -570,11 +571,25 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
         local_irq_restore(flags);
 }
 
+static int
+dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, const char *name,
+                    unsigned long size)
+{
+        pool->size = size;
+        DO_STATS(pool->allocs = 0);
+        pool->pool = dma_pool_create(name, dev, size,
+                                     0 /* byte alignment */,
+                                     0 /* no page-crossing issues */);
+
+        return pool->pool ? 0 : -ENOMEM;
+}
+
 int
 dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
                         unsigned long large_buffer_size)
 {
         struct dmabounce_device_info *device_info;
+        int ret;
 
         device_info = kmalloc(sizeof(struct dmabounce_device_info), GFP_ATOMIC);
         if (!device_info) {
@@ -584,45 +599,31 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
                 return -ENOMEM;
         }
 
-        device_info->small_buffer_pool =
-                dma_pool_create("small_dmabounce_pool",
-                                dev,
-                                small_buffer_size,
-                                0 /* byte alignment */,
-                                0 /* no page-crossing issues */);
-        if (!device_info->small_buffer_pool) {
-                printk(KERN_ERR
-                        "dmabounce: could not allocate small DMA pool for %s\n",
-                        dev->bus_id);
-                kfree(device_info);
-                return -ENOMEM;
+        ret = dmabounce_init_pool(&device_info->small, dev,
+                                  "small_dmabounce_pool", small_buffer_size);
+        if (ret) {
+                dev_err(dev,
+                        "dmabounce: could not allocate DMA pool for %ld byte objects\n",
+                        small_buffer_size);
+                goto err_free;
         }
 
         if (large_buffer_size) {
-                device_info->large_buffer_pool =
-                        dma_pool_create("large_dmabounce_pool",
-                                        dev,
-                                        large_buffer_size,
-                                        0 /* byte alignment */,
-                                        0 /* no page-crossing issues */);
-                if (!device_info->large_buffer_pool) {
-                printk(KERN_ERR
-                        "dmabounce: could not allocate large DMA pool for %s\n",
-                        dev->bus_id);
-                        dma_pool_destroy(device_info->small_buffer_pool);
-
-                        return -ENOMEM;
+                ret = dmabounce_init_pool(&device_info->large, dev,
+                                          "large_dmabounce_pool",
+                                          large_buffer_size);
+                if (ret) {
+                        dev_err(dev,
+                                "dmabounce: could not allocate DMA pool for %ld byte objects\n",
+                                large_buffer_size);
+                        goto err_destroy;
                 }
         }
 
         device_info->dev = dev;
-        device_info->small_buffer_size = small_buffer_size;
-        device_info->large_buffer_size = large_buffer_size;
         INIT_LIST_HEAD(&device_info->safe_buffers);
 
 #ifdef STATS
-        device_info->sbp_allocs = 0;
-        device_info->lbp_allocs = 0;
         device_info->total_allocs = 0;
         device_info->map_op_count = 0;
         device_info->bounce_count = 0;
@@ -634,6 +635,12 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
                 dev->bus_id, dev->bus->name);
 
         return 0;
+
+ err_destroy:
+        dma_pool_destroy(device_info->small.pool);
+ err_free:
+        kfree(device_info);
+        return ret;
 }
 
 void
@@ -655,10 +662,10 @@ dmabounce_unregister_dev(struct device *dev)
                 BUG();
         }
 
-        if (device_info->small_buffer_pool)
-                dma_pool_destroy(device_info->small_buffer_pool);
-        if (device_info->large_buffer_pool)
-                dma_pool_destroy(device_info->large_buffer_pool);
+        if (device_info->small.pool)
+                dma_pool_destroy(device_info->small.pool);
+        if (device_info->large.pool)
+                dma_pool_destroy(device_info->large.pool);
 
 #ifdef STATS
         print_alloc_stats(device_info);
diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index e8356b76d7c6..4af0cf5f3bfb 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -12,6 +12,9 @@
  */
 
 #include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include <asm/io.h>
 #include <asm/hardware/scoop.h>
 
diff --git a/arch/arm/configs/ixdp2400_defconfig b/arch/arm/configs/ixdp2400_defconfig
index 678720fa2e2e..ddeb9f99d662 100644
--- a/arch/arm/configs/ixdp2400_defconfig
+++ b/arch/arm/configs/ixdp2400_defconfig
@@ -559,7 +559,7 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 #
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_NR_UARTS=1
 # CONFIG_SERIAL_8250_EXTENDED is not set
 
 #
diff --git a/arch/arm/configs/ixdp2800_defconfig b/arch/arm/configs/ixdp2800_defconfig
index 261e2343903b..81d3a0606f95 100644
--- a/arch/arm/configs/ixdp2800_defconfig
+++ b/arch/arm/configs/ixdp2800_defconfig
@@ -559,7 +559,7 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 #
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_NR_UARTS=1
 # CONFIG_SERIAL_8250_EXTENDED is not set
 
 #
diff --git a/arch/arm/kernel/arthur.c b/arch/arm/kernel/arthur.c
index a418dad6692c..0ee2e9819631 100644
--- a/arch/arm/kernel/arthur.c
+++ b/arch/arm/kernel/arthur.c
@@ -18,6 +18,7 @@
 #include <linux/stddef.h>
 #include <linux/signal.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 
 #include <asm/ptrace.h>
 
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index cd99b83f14c2..9bd8609a2926 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -782,7 +782,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat
         return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret;
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 69449a818dcc..fc4729106a32 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -36,10 +36,6 @@
 #include <asm/thread_info.h>
 #include <asm/mach/time.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * Our system timer.
  */
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 66e5a0516f23..45e9ea6cd2a5 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -198,25 +198,16 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
         barrier();
 }
 
-DEFINE_SPINLOCK(die_lock);
-
-/*
- * This function is protected against re-entrancy.
- */
-NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
+static void __die(const char *str, int err, struct thread_info *thread, struct pt_regs *regs)
 {
-        struct task_struct *tsk = current;
+        struct task_struct *tsk = thread->task;
         static int die_counter;
 
-        console_verbose();
-        spin_lock_irq(&die_lock);
-        bust_spinlocks(1);
-
         printk("Internal error: %s: %x [#%d]\n", str, err, ++die_counter);
         print_modules();
         __show_regs(regs);
         printk("Process %s (pid: %d, stack limit = 0x%p)\n",
-                tsk->comm, tsk->pid, tsk->thread_info + 1);
+                tsk->comm, tsk->pid, thread + 1);
 
         if (!user_mode(regs) || in_interrupt()) {
                 dump_mem("Stack: ", regs->ARM_sp,
@@ -224,7 +215,21 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
                 dump_backtrace(regs, tsk);
                 dump_instr(regs);
         }
+}
 
+DEFINE_SPINLOCK(die_lock);
+
+/*
+ * This function is protected against re-entrancy.
+ */
+NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
+{
+        struct thread_info *thread = current_thread_info();
+
+        console_verbose();
+        spin_lock_irq(&die_lock);
+        bust_spinlocks(1);
+        __die(str, err, thread, regs);
         bust_spinlocks(0);
         spin_unlock_irq(&die_lock);
         do_exit(SIGSEGV);
diff --git a/arch/arm/lib/ashldi3.S b/arch/arm/lib/ashldi3.S
new file mode 100644
index 000000000000..561e20717b30
--- /dev/null
+++ b/arch/arm/lib/ashldi3.S
@@ -0,0 +1,48 @@
+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+ENTRY(__ashldi3)
+
+        subs    r3, r2, #32
+        rsb     ip, r2, #32
+        movmi   ah, ah, lsl r2
+        movpl   ah, al, lsl r3
+        orrmi   ah, ah, al, lsr ip
+        mov     al, al, lsl r2
+        mov     pc, lr
+
diff --git a/arch/arm/lib/ashldi3.c b/arch/arm/lib/ashldi3.c
deleted file mode 100644
index b62875cfd8f8..000000000000
--- a/arch/arm/lib/ashldi3.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-s64 __ashldi3(s64 u, int b)
-{
-        DIunion w;
-        int bm;
-        DIunion uu;
-
-        if (b == 0)
-                return u;
-
-        uu.ll = u;
-
-        bm = (sizeof(s32) * BITS_PER_UNIT) - b;
-        if (bm <= 0) {
-                w.s.low = 0;
-                w.s.high = (u32) uu.s.low << -bm;
-        } else {
-                u32 carries = (u32) uu.s.low >> bm;
-                w.s.low = (u32) uu.s.low << b;
-                w.s.high = ((u32) uu.s.high << b) | carries;
-        }
-
-        return w.ll;
-}
diff --git a/arch/arm/lib/ashrdi3.S b/arch/arm/lib/ashrdi3.S
new file mode 100644
index 000000000000..86fb2a90c301
--- /dev/null
+++ b/arch/arm/lib/ashrdi3.S
@@ -0,0 +1,48 @@
+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+ENTRY(__ashrdi3)
+
+        subs    r3, r2, #32
+        rsb     ip, r2, #32
+        movmi   al, al, lsr r2
+        movpl   al, ah, asr r3
+        orrmi   al, al, ah, lsl ip
+        mov     ah, ah, asr r2
+        mov     pc, lr
+
diff --git a/arch/arm/lib/ashrdi3.c b/arch/arm/lib/ashrdi3.c
deleted file mode 100644
index 9a8600a7543f..000000000000
--- a/arch/arm/lib/ashrdi3.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-s64 __ashrdi3(s64 u, int b)
-{
-        DIunion w;
-        int bm;
-        DIunion uu;
-
-        if (b == 0)
-                return u;
-
-        uu.ll = u;
-
-        bm = (sizeof(s32) * BITS_PER_UNIT) - b;
-        if (bm <= 0) {
-                /* w.s.high = 1..1 or 0..0 */
-                w.s.high = uu.s.high >> (sizeof(s32) * BITS_PER_UNIT - 1);
-                w.s.low = uu.s.high >> -bm;
-        } else {
-                u32 carries = (u32) uu.s.high << bm;
-                w.s.high = uu.s.high >> b;
-                w.s.low = ((u32) uu.s.low >> b) | carries;
-        }
-
-        return w.ll;
-}
diff --git a/arch/arm/lib/gcclib.h b/arch/arm/lib/gcclib.h
deleted file mode 100644
index 8b6dcc656de7..000000000000
--- a/arch/arm/lib/gcclib.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* gcclib.h -- definitions for various functions 'borrowed' from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include <linux/types.h>
-
-#define BITS_PER_UNIT   8
-#define SI_TYPE_SIZE    (sizeof(s32) * BITS_PER_UNIT)
-
-#ifdef __ARMEB__
-struct DIstruct {
-        s32 high, low;
-};
-#else
-struct DIstruct {
-        s32 low, high;
-};
-#endif
-
-typedef union {
-        struct DIstruct s;
-        s64 ll;
-} DIunion;
diff --git a/arch/arm/lib/lshrdi3.S b/arch/arm/lib/lshrdi3.S
new file mode 100644
index 000000000000..46c2ed19ec95
--- /dev/null
+++ b/arch/arm/lib/lshrdi3.S
@@ -0,0 +1,48 @@
+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+ENTRY(__lshrdi3)
+
+        subs    r3, r2, #32
+        rsb     ip, r2, #32
+        movmi   al, al, lsr r2
+        movpl   al, ah, lsr r3
+        orrmi   al, al, ah, lsl ip
+        mov     ah, ah, lsr r2
+        mov     pc, lr
+
diff --git a/arch/arm/lib/lshrdi3.c b/arch/arm/lib/lshrdi3.c
deleted file mode 100644
index 3681f49d2b6e..000000000000
--- a/arch/arm/lib/lshrdi3.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-s64 __lshrdi3(s64 u, int b)
-{
-        DIunion w;
-        int bm;
-        DIunion uu;
-
-        if (b == 0)
-                return u;
-
-        uu.ll = u;
-
-        bm = (sizeof(s32) * BITS_PER_UNIT) - b;
-        if (bm <= 0) {
-                w.s.high = 0;
-                w.s.low = (u32) uu.s.high >> -bm;
-        } else {
-                u32 carries = (u32) uu.s.high << bm;
-                w.s.high = (u32) uu.s.high >> b;
-                w.s.low = ((u32) uu.s.low >> b) | carries;
-        }
-
-        return w.ll;
-}
diff --git a/arch/arm/lib/muldi3.S b/arch/arm/lib/muldi3.S
new file mode 100644
index 000000000000..c7fbdf005319
--- /dev/null
+++ b/arch/arm/lib/muldi3.S
@@ -0,0 +1,44 @@
+/*
+ *  linux/arch/arm/lib/muldi3.S
+ *
+ *  Author:     Nicolas Pitre
+ *  Created:    Oct 19, 2005
+ *  Copyright:  Monta Vista Software, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define xh r0
+#define xl r1
+#define yh r2
+#define yl r3
+#else
+#define xl r0
+#define xh r1
+#define yl r2
+#define yh r3
+#endif
+
+ENTRY(__muldi3)
+
+        mul     xh, yl, xh
+        mla     xh, xl, yh, xh
+        mov     ip, xl, asr #16
+        mov     yh, yl, asr #16
+        bic     xl, xl, ip, lsl #16
+        bic     yl, yl, yh, lsl #16
+        mla     xh, yh, ip, xh
+        mul     yh, xl, yh
+        mul     xl, yl, xl
+        mul     ip, yl, ip
+        adds    xl, xl, yh, lsl #16
+        adc     xh, xh, yh, lsr #16
+        adds    xl, xl, ip, lsl #16
+        adc     xh, xh, ip, lsr #16
+        mov     pc, lr
+
diff --git a/arch/arm/lib/muldi3.c b/arch/arm/lib/muldi3.c
deleted file mode 100644
index 0a3b93313f18..000000000000
--- a/arch/arm/lib/muldi3.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-#define umul_ppmm(xh, xl, a, b) \
-{register u32 __t0, __t1, __t2;                                     \
-  __asm__ ("%@ Inlined umul_ppmm                                        \n\
-        mov     %2, %5, lsr #16                                         \n\
-        mov     %0, %6, lsr #16                                         \n\
-        bic     %3, %5, %2, lsl #16                                     \n\
-        bic     %4, %6, %0, lsl #16                                     \n\
-        mul     %1, %3, %4                                              \n\
-        mul     %4, %2, %4                                              \n\
-        mul     %3, %0, %3                                              \n\
-        mul     %0, %2, %0                                              \n\
-        adds    %3, %4, %3                                              \n\
-        addcs   %0, %0, #65536                                          \n\
-        adds    %1, %1, %3, lsl #16                                     \n\
-        adc     %0, %0, %3, lsr #16"                                    \
-           : "=&r" ((u32) (xh)),                                    \
-             "=r" ((u32) (xl)),                                     \
-             "=&r" (__t0), "=&r" (__t1), "=r" (__t2)                    \
-           : "r" ((u32) (a)),                                       \
-             "r" ((u32) (b)));}
-
-#define __umulsidi3(u, v) \
-  ({DIunion __w;                                                        \
-    umul_ppmm (__w.s.high, __w.s.low, u, v);                            \
-    __w.ll; })
-
-s64 __muldi3(s64 u, s64 v)
-{
-        DIunion w;
-        DIunion uu, vv;
-
-        uu.ll = u, vv.ll = v;
-
-        w.ll = __umulsidi3(uu.s.low, vv.s.low);
-        w.s.high += ((u32) uu.s.low * (u32) vv.s.high
-                     + (u32) uu.s.high * (u32) vv.s.low);
-
-        return w.ll;
-}
diff --git a/arch/arm/lib/ucmpdi2.S b/arch/arm/lib/ucmpdi2.S
new file mode 100644
index 000000000000..112630f93e5d
--- /dev/null
+++ b/arch/arm/lib/ucmpdi2.S
@@ -0,0 +1,35 @@
+/*
+ *  linux/arch/arm/lib/ucmpdi2.S
+ *
+ *  Author:     Nicolas Pitre
+ *  Created:    Oct 19, 2005
+ *  Copyright:  Monta Vista Software, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define xh r0
+#define xl r1
+#define yh r2
+#define yl r3
+#else
+#define xl r0
+#define xh r1
+#define yl r2
+#define yh r3
+#endif
+
+ENTRY(__ucmpdi2)
+
+        cmp     xh, yh
+        cmpeq   xl, yl
+        movlo   r0, #0
+        moveq   r0, #1
+        movhi   r0, #2
+        mov     pc, lr
+
diff --git a/arch/arm/lib/ucmpdi2.c b/arch/arm/lib/ucmpdi2.c
deleted file mode 100644
index 57f3f2df3850..000000000000
--- a/arch/arm/lib/ucmpdi2.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-int __ucmpdi2(s64 a, s64 b)
-{
-        DIunion au, bu;
-
-        au.ll = a, bu.ll = b;
-
-        if ((u32) au.s.high < (u32) bu.s.high)
-                return 0;
-        else if ((u32) au.s.high > (u32) bu.s.high)
-                return 2;
-        if ((u32) au.s.low < (u32) bu.s.low)
-                return 0;
-        else if ((u32) au.s.low > (u32) bu.s.low)
-                return 2;
-        return 1;
-}
diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c
index cb14b0682cef..837d7f0bda4c 100644
--- a/arch/arm/mach-imx/generic.c
+++ b/arch/arm/mach-imx/generic.c
@@ -26,6 +26,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/string.h>
+
 #include <asm/arch/imxfb.h>
 #include <asm/hardware.h>
 #include <asm/arch/imx-regs.h>
diff --git a/arch/arm/mach-integrator/clock.c b/arch/arm/mach-integrator/clock.c
index 56200594db3c..73c360685cad 100644
--- a/arch/arm/mach-integrator/clock.c
+++ b/arch/arm/mach-integrator/clock.c
@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/string.h>
 
 #include <asm/semaphore.h>
 #include <asm/hardware/clock.h>
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index f368b85f0447..764ceb49470a 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -30,6 +30,7 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/setup.h>
+#include <asm/param.h>          /* HZ */
 #include <asm/mach-types.h>
 #include <asm/hardware/amba.h>
 #include <asm/hardware/amba_kmi.h>
diff --git a/arch/arm/mach-integrator/lm.c b/arch/arm/mach-integrator/lm.c
index c5f19d160598..5b41e3a724e1 100644
--- a/arch/arm/mach-integrator/lm.c
+++ b/arch/arm/mach-integrator/lm.c
@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 
 #include <asm/arch/lm.h>
 
diff --git a/arch/arm/mach-iop3xx/iq31244-pci.c b/arch/arm/mach-iop3xx/iq31244-pci.c
index f997daa800bf..c6a973ba8fc6 100644
--- a/arch/arm/mach-iop3xx/iq31244-pci.c
+++ b/arch/arm/mach-iop3xx/iq31244-pci.c
@@ -14,6 +14,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
diff --git a/arch/arm/mach-iop3xx/iq80321-pci.c b/arch/arm/mach-iop3xx/iq80321-pci.c
index 79fea3d20b66..802f6d091b75 100644
--- a/arch/arm/mach-iop3xx/iq80321-pci.c
+++ b/arch/arm/mach-iop3xx/iq80321-pci.c
@@ -14,6 +14,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
diff --git a/arch/arm/mach-iop3xx/iq80331-pci.c b/arch/arm/mach-iop3xx/iq80331-pci.c
index f37a0e26b466..654e450a1311 100644
--- a/arch/arm/mach-iop3xx/iq80331-pci.c
+++ b/arch/arm/mach-iop3xx/iq80331-pci.c
@@ -13,6 +13,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
diff --git a/arch/arm/mach-iop3xx/iq80332-pci.c b/arch/arm/mach-iop3xx/iq80332-pci.c
index b9807aa2aade..65951ffe4631 100644
--- a/arch/arm/mach-iop3xx/iq80332-pci.c
+++ b/arch/arm/mach-iop3xx/iq80332-pci.c
@@ -13,6 +13,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 60c8b9d8bb9c..656f73bbcb5a 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -33,6 +33,7 @@
 
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/irq.h>
+#include <asm/arch/irda.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/corgi.h>
@@ -224,6 +225,22 @@ static struct pxamci_platform_data corgi_mci_platform_data = {
 };
 
 
+/*
+ * Irda
+ */
+static void corgi_irda_transceiver_mode(struct device *dev, int mode)
+{
+        if (mode & IR_OFF)
+                GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
+        else
+                GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
+}
+
+static struct pxaficp_platform_data corgi_ficp_platform_data = {
+        .transceiver_cap  = IR_SIRMODE | IR_OFF,
+        .transceiver_mode = corgi_irda_transceiver_mode,
+};
+
 
 /*
  * USB Device Controller
@@ -269,10 +286,13 @@ static void __init corgi_init(void)
 
         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 
+        pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
         pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
+
         pxa_set_udc_info(&udc_info);
         pxa_set_mci_info(&corgi_mci_platform_data);
+        pxa_set_ficp_info(&corgi_ficp_platform_data);
 
         scoop_num = 1;
         scoop_devs = &corgi_pcmcia_scoop[0];
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index 3248bc9b9495..9c0289333301 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -23,6 +23,7 @@
 #include <linux/device.h>
 #include <linux/ioport.h>
 #include <linux/pm.h>
+#include <linux/string.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index f25638810017..6d413f6701a7 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -32,6 +32,7 @@
 #include <asm/arch/irq.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
+#include <asm/arch/irda.h>
 #include <asm/arch/poodle.h>
 #include <asm/arch/pxafb.h>
 
@@ -152,6 +153,24 @@ static struct pxamci_platform_data poodle_mci_platform_data = {
 
 
 /*
+ * Irda
+ */
+static void poodle_irda_transceiver_mode(struct device *dev, int mode)
+{
+        if (mode & IR_OFF) {
+                GPSR(POODLE_GPIO_IR_ON) = GPIO_bit(POODLE_GPIO_IR_ON);
+        } else {
+                GPCR(POODLE_GPIO_IR_ON) = GPIO_bit(POODLE_GPIO_IR_ON);
+        }
+}
+
+static struct pxaficp_platform_data poodle_ficp_platform_data = {
+        .transceiver_cap  = IR_SIRMODE | IR_OFF,
+        .transceiver_mode = poodle_irda_transceiver_mode,
+};
+
+
+/*
  * USB Device Controller
  */
 static void poodle_udc_command(int cmd)
@@ -244,8 +263,10 @@ static void __init poodle_init(void)
 
         set_pxa_fb_info(&poodle_fb_info);
         pxa_gpio_mode(POODLE_GPIO_USB_PULLUP | GPIO_OUT);
+        pxa_gpio_mode(POODLE_GPIO_IR_ON | GPIO_OUT);
         pxa_set_udc_info(&udc_info);
         pxa_set_mci_info(&poodle_mci_platform_data);
+        pxa_set_ficp_info(&poodle_ficp_platform_data);
 
         scoop_num = 1;
         scoop_devs = &poodle_pcmcia_scoop[0];
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index d0ab428c2d7d..b838842b6a20 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -34,6 +34,7 @@
 
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/irq.h>
+#include <asm/arch/irda.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/pxafb.h>
@@ -277,6 +278,23 @@ static struct pxamci_platform_data spitz_mci_platform_data = {
 
 
 /*
+ * Irda
+ */
+static void spitz_irda_transceiver_mode(struct device *dev, int mode)
+{
+        if (mode & IR_OFF)
+                set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
+        else
+                reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
+}
+
+static struct pxaficp_platform_data spitz_ficp_platform_data = {
+        .transceiver_cap  = IR_SIRMODE | IR_OFF,
+        .transceiver_mode = spitz_irda_transceiver_mode,
+};
+
+
+/*
  * Spitz PXA Framebuffer
  */
 static struct pxafb_mach_info spitz_pxafb_info __initdata = {
@@ -326,6 +344,7 @@ static void __init common_init(void)
 
         platform_add_devices(devices, ARRAY_SIZE(devices));
         pxa_set_mci_info(&spitz_mci_platform_data);
+        pxa_set_ficp_info(&spitz_ficp_platform_data);
         set_pxa_fb_parent(&spitzssp_device.dev);
         set_pxa_fb_info(&spitz_pxafb_info);
 }
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index f94b0fbcdcc8..83eba8b54816 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -17,6 +17,7 @@
 #include <linux/pm.h>
 #include <linux/cpufreq.h>
 #include <linux/ioport.h>
+#include <linux/sched.h>        /* just for sched_clock() - funny that */
 
 #include <asm/div64.h>
 #include <asm/hardware.h>
diff --git a/arch/arm/mach-versatile/clock.c b/arch/arm/mach-versatile/clock.c
index 48025c2b9987..b96a2ea15d41 100644
--- a/arch/arm/mach-versatile/clock.c
+++ b/arch/arm/mach-versatile/clock.c
@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/string.h>
 
 #include <asm/semaphore.h>
 #include <asm/hardware/clock.h>
diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index 27d041574ea7..269ce6913ee9 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -22,9 +22,7 @@
 #endif
 
 #define from_address    (0xffff8000)
-#define from_pgprot     PAGE_KERNEL
 #define to_address      (0xffffc000)
-#define to_pgprot       PAGE_KERNEL
 
 #define TOP_PTE(x)      pte_offset_kernel(top_pmd, x)
 
@@ -34,7 +32,7 @@ static DEFINE_SPINLOCK(v6_lock);
  * Copy the user page.  No aliasing to deal with so we can just
  * attack the kernel's existing mapping of these pages.
  */
-void v6_copy_user_page_nonaliasing(void *kto, const void *kfrom, unsigned long vaddr)
+static void v6_copy_user_page_nonaliasing(void *kto, const void *kfrom, unsigned long vaddr)
 {
         copy_page(kto, kfrom);
 }
@@ -43,7 +41,7 @@ void v6_copy_user_page_nonaliasing(void *kto, const void *kfrom, unsigned long v
  * Clear the user page.  No aliasing to deal with so we can just
  * attack the kernel's existing mapping of this page.
  */
-void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr)
+static void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr)
 {
         clear_page(kaddr);
 }
@@ -51,7 +49,7 @@ void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr)
 /*
  * Copy the page, taking account of the cache colour.
  */
-void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vaddr)
+static void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vaddr)
 {
         unsigned int offset = CACHE_COLOUR(vaddr);
         unsigned long from, to;
@@ -72,8 +70,8 @@ void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vadd
          */
         spin_lock(&v6_lock);
 
-        set_pte(TOP_PTE(from_address) + offset, pfn_pte(__pa(kfrom) >> PAGE_SHIFT, from_pgprot));
-        set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kto) >> PAGE_SHIFT, to_pgprot));
+        set_pte(TOP_PTE(from_address) + offset, pfn_pte(__pa(kfrom) >> PAGE_SHIFT, PAGE_KERNEL));
+        set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kto) >> PAGE_SHIFT, PAGE_KERNEL));
 
         from = from_address + (offset << PAGE_SHIFT);
         to   = to_address + (offset << PAGE_SHIFT);
@@ -91,7 +89,7 @@ void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vadd
  * so remap the kernel page into the same cache colour as the user
  * page.
  */
-void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
+static void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
 {
         unsigned int offset = CACHE_COLOUR(vaddr);
         unsigned long to = to_address + (offset << PAGE_SHIFT);
@@ -112,7 +110,7 @@ void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
          */
         spin_lock(&v6_lock);
 
-        set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kaddr) >> PAGE_SHIFT, to_pgprot));
+        set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kaddr) >> PAGE_SHIFT, PAGE_KERNEL));
         flush_tlb_kernel_page(to);
         clear_page((void *)to);
 
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 52a58b2da288..a020fe16428f 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/string.h>
 
 #include <asm/io.h>
 #include <asm/semaphore.h>
diff --git a/arch/arm26/kernel/ptrace.c b/arch/arm26/kernel/ptrace.c
index 8a52124de0e1..cf7e977d18c8 100644
--- a/arch/arm26/kernel/ptrace.c
+++ b/arch/arm26/kernel/ptrace.c
@@ -665,7 +665,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat
         return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret;
diff --git a/arch/arm26/kernel/time.c b/arch/arm26/kernel/time.c
index e66aedd02fad..335525339ad6 100644
--- a/arch/arm26/kernel/time.c
+++ b/arch/arm26/kernel/time.c
@@ -34,10 +34,6 @@
 #include <asm/irq.h>
 #include <asm/ioc.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 
 /* this needs a better home */
diff --git a/arch/cris/arch-v10/drivers/axisflashmap.c b/arch/cris/arch-v10/drivers/axisflashmap.c
index 11ab3836aac6..56b038c8d482 100644
--- a/arch/cris/arch-v10/drivers/axisflashmap.c
+++ b/arch/cris/arch-v10/drivers/axisflashmap.c
@@ -140,6 +140,7 @@
 #include <linux/kernel.h>
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/concat.h>
 #include <linux/mtd/map.h>
diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c
index 78ed52b1cdac..b679f983b90a 100644
--- a/arch/cris/arch-v32/drivers/axisflashmap.c
+++ b/arch/cris/arch-v32/drivers/axisflashmap.c
@@ -20,6 +20,7 @@
 #include <linux/kernel.h>
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/concat.h>
 #include <linux/mtd/map.h>
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index a2d99b4aedcd..66ba8898db07 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -31,10 +31,7 @@
 #include <linux/timex.h>
 #include <linux/init.h>
 #include <linux/profile.h>
-
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
+#include <linux/sched.h>        /* just for sched_clock() - funny that */
 
 int have_rtc;  /* used to remember if we have an RTC or not */;
 
diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c
index cbe03cba9f02..cb335a14a315 100644
--- a/arch/frv/kernel/ptrace.c
+++ b/arch/frv/kernel/ptrace.c
@@ -106,7 +106,7 @@ void ptrace_enable(struct task_struct *child)
         child->thread.frame0->__status |= REG__STATUS_STEP;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         unsigned long tmp;
diff --git a/arch/frv/kernel/time.c b/arch/frv/kernel/time.c
index f43b734482e3..2e9741227b73 100644
--- a/arch/frv/kernel/time.c
+++ b/arch/frv/kernel/time.c
@@ -34,9 +34,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned long __nongprelbss __clkin_clock_speed_HZ;
 unsigned long __nongprelbss __ext_bus_clock_speed_HZ;
 unsigned long __nongprelbss __res_bus_clock_speed_HZ;
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
index 05c15e869777..a569fe4aa284 100644
--- a/arch/h8300/kernel/ptrace.c
+++ b/arch/h8300/kernel/ptrace.c
@@ -57,7 +57,7 @@ void ptrace_disable(struct task_struct *child)
         h8300_disable_trace(child);
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret;
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index af8c5d2057dd..688a5100604c 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -32,10 +32,6 @@
 
 #define TICK_SIZE (tick_nsec / 1000)
 
-u64 jiffies_64;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index d2703cda61ea..5383e5e2d9b7 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -5,7 +5,7 @@
 
 mainmenu "Linux Kernel Configuration"
 
-config X86
+config X86_32
         bool
         default y
         help
@@ -18,6 +18,10 @@ config SEMAPHORE_SLEEPERS
         bool
         default y
 
+config X86
+        bool
+        default y
+
 config MMU
         bool
         default y
@@ -151,304 +155,7 @@ config ES7000_CLUSTERED_APIC
         default y
         depends on SMP && X86_ES7000 && MPENTIUMIII
 
-if !X86_ELAN
-
-choice
-        prompt "Processor family"
-        default M686
-
-config M386
-        bool "386"
-        ---help---
-          This is the processor type of your CPU. This information is used for
-          optimizing purposes. In order to compile a kernel that can run on
-          all x86 CPU types (albeit not optimally fast), you can specify
-          "386" here.
-
-          The kernel will not necessarily run on earlier architectures than
-          the one you have chosen, e.g. a Pentium optimized kernel will run on
-          a PPro, but not necessarily on a i486.
-
-          Here are the settings recommended for greatest speed:
-          - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
-          486DLC/DLC2, UMC 486SX-S and NexGen Nx586.  Only "386" kernels
-          will run on a 386 class machine.
-          - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
-          SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
-          - "586" for generic Pentium CPUs lacking the TSC
-          (time stamp counter) register.
-          - "Pentium-Classic" for the Intel Pentium.
-          - "Pentium-MMX" for the Intel Pentium MMX.
-          - "Pentium-Pro" for the Intel Pentium Pro.
-          - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
-          - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
-          - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
-          - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
-          - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
-          - "Crusoe" for the Transmeta Crusoe series.
-          - "Efficeon" for the Transmeta Efficeon series.
-          - "Winchip-C6" for original IDT Winchip.
-          - "Winchip-2" for IDT Winchip 2.
-          - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
-          - "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
-          - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
-          - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above).
-
-          If you don't know what to do, choose "386".
-
-config M486
-        bool "486"
-        help
-          Select this for a 486 series processor, either Intel or one of the
-          compatible processors from AMD, Cyrix, IBM, or Intel.  Includes DX,
-          DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
-          U5S.
-
-config M586
-        bool "586/K5/5x86/6x86/6x86MX"
-        help
-          Select this for an 586 or 686 series processor such as the AMD K5,
-          the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
-          assume the RDTSC (Read Time Stamp Counter) instruction.
-
-config M586TSC
-        bool "Pentium-Classic"
-        help
-          Select this for a Pentium Classic processor with the RDTSC (Read
-          Time Stamp Counter) instruction for benchmarking.
-
-config M586MMX
-        bool "Pentium-MMX"
-        help
-          Select this for a Pentium with the MMX graphics/multimedia
-          extended instructions.
-
-config M686
-        bool "Pentium-Pro"
-        help
-          Select this for Intel Pentium Pro chips.  This enables the use of
-          Pentium Pro extended instructions, and disables the init-time guard
-          against the f00f bug found in earlier Pentiums.
-
-config MPENTIUMII
-        bool "Pentium-II/Celeron(pre-Coppermine)"
-        help
-          Select this for Intel chips based on the Pentium-II and
-          pre-Coppermine Celeron core.  This option enables an unaligned
-          copy optimization, compiles the kernel with optimization flags
-          tailored for the chip, and applies any applicable Pentium Pro
-          optimizations.
-
-config MPENTIUMIII
-        bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
-        help
-          Select this for Intel chips based on the Pentium-III and
-          Celeron-Coppermine core.  This option enables use of some
-          extended prefetch instructions in addition to the Pentium II
-          extensions.
-
-config MPENTIUMM
-        bool "Pentium M"
-        help
-          Select this for Intel Pentium M (not Pentium-4 M)
-          notebook chips.
-
-config MPENTIUM4
-        bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/Xeon"
-        help
-          Select this for Intel Pentium 4 chips.  This includes the
-          Pentium 4, P4-based Celeron and Xeon, and Pentium-4 M
-          (not Pentium M) chips.  This option enables compile flags
-          optimized for the chip, uses the correct cache shift, and
-          applies any applicable Pentium III optimizations.
-
-config MK6
-        bool "K6/K6-II/K6-III"
-        help
-          Select this for an AMD K6-family processor.  Enables use of
-          some extended instructions, and passes appropriate optimization
-          flags to GCC.
-
-config MK7
-        bool "Athlon/Duron/K7"
-        help
-          Select this for an AMD Athlon K7-family processor.  Enables use of
-          some extended instructions, and passes appropriate optimization
-          flags to GCC.
-
-config MK8
-        bool "Opteron/Athlon64/Hammer/K8"
-        help
-          Select this for an AMD Opteron or Athlon64 Hammer-family processor.  Enables
-          use of some extended instructions, and passes appropriate optimization
-          flags to GCC.
-
-config MCRUSOE
-        bool "Crusoe"
-        help
-          Select this for a Transmeta Crusoe processor.  Treats the processor
-          like a 586 with TSC, and sets some GCC optimization flags (like a
-          Pentium Pro with no alignment requirements).
-
-config MEFFICEON
-        bool "Efficeon"
-        help
-          Select this for a Transmeta Efficeon processor.
-
-config MWINCHIPC6
-        bool "Winchip-C6"
-        help
-          Select this for an IDT Winchip C6 chip.  Linux and GCC
-          treat this chip as a 586TSC with some extended instructions
-          and alignment requirements.
-
-config MWINCHIP2
-        bool "Winchip-2"
-        help
-          Select this for an IDT Winchip-2.  Linux and GCC
-          treat this chip as a 586TSC with some extended instructions
-          and alignment requirements.
-
-config MWINCHIP3D
-        bool "Winchip-2A/Winchip-3"
-        help
-          Select this for an IDT Winchip-2A or 3.  Linux and GCC
-          treat this chip as a 586TSC with some extended instructions
-          and alignment reqirements.  Also enable out of order memory
-          stores for this CPU, which can increase performance of some
-          operations.
-
-config MGEODEGX1
-        bool "GeodeGX1"
-        help
-          Select this for a Geode GX1 (Cyrix MediaGX) chip.
-
-config MCYRIXIII
-        bool "CyrixIII/VIA-C3"
-        help
-          Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
-          treat this chip as a generic 586. Whilst the CPU is 686 class,
-          it lacks the cmov extension which gcc assumes is present when
-          generating 686 code.
-          Note that Nehemiah (Model 9) and above will not boot with this
-          kernel due to them lacking the 3DNow! instructions used in earlier
-          incarnations of the CPU.
-
-config MVIAC3_2
-        bool "VIA C3-2 (Nehemiah)"
-        help
-          Select this for a VIA C3 "Nehemiah". Selecting this enables usage
-          of SSE and tells gcc to treat the CPU as a 686.
-          Note, this kernel will not boot on older (pre model 9) C3s.
-
-endchoice
-
-config X86_GENERIC
-       bool "Generic x86 support"
-       help
-          Instead of just including optimizations for the selected
-          x86 variant (e.g. PII, Crusoe or Athlon), include some more
-          generic optimizations as well. This will make the kernel
-          perform better on x86 CPUs other than that selected.
-
-          This is really intended for distributors who need more
-          generic optimizations.
-
-endif
-
-#
-# Define implied options from the CPU selection here
-#
-config X86_CMPXCHG
-        bool
-        depends on !M386
-        default y
-
-config X86_XADD
-        bool
-        depends on !M386
-        default y
-
-config X86_L1_CACHE_SHIFT
-        int
-        default "7" if MPENTIUM4 || X86_GENERIC
-        default "4" if X86_ELAN || M486 || M386
-        default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODEGX1
-        default "6" if MK7 || MK8 || MPENTIUMM
-
-config RWSEM_GENERIC_SPINLOCK
-        bool
-        depends on M386
-        default y
-
-config RWSEM_XCHGADD_ALGORITHM
-        bool
-        depends on !M386
-        default y
-
-config GENERIC_CALIBRATE_DELAY
-        bool
-        default y
-
-config X86_PPRO_FENCE
-        bool
-        depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
-        default y
-
-config X86_F00F_BUG
-        bool
-        depends on M586MMX || M586TSC || M586 || M486 || M386
-        default y
-
-config X86_WP_WORKS_OK
-        bool
-        depends on !M386
-        default y
-
-config X86_INVLPG
-        bool
-        depends on !M386
-        default y
-
-config X86_BSWAP
-        bool
-        depends on !M386
-        default y
-
-config X86_POPAD_OK
-        bool
-        depends on !M386
-        default y
-
-config X86_ALIGNMENT_16
-        bool
-        depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
-        default y
-
-config X86_GOOD_APIC
-        bool
-        depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON
-        default y
-
-config X86_INTEL_USERCOPY
-        bool
-        depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON
-        default y
-
-config X86_USE_PPRO_CHECKSUM
-        bool
-        depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON
-        default y
-
-config X86_USE_3DNOW
-        bool
-        depends on MCYRIXIII || MK7
-        default y
-
-config X86_OOSTORE
-        bool
-        depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
-        default y
+source "arch/i386/Kconfig.cpu"
 
 config HPET_TIMER
         bool "HPET Timer Support"
@@ -561,11 +268,6 @@ config X86_VISWS_APIC
         depends on X86_VISWS
         default y
 
-config X86_TSC
-        bool
-        depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MGEODEGX1) && !X86_NUMAQ
-        default y
-
 config X86_MCE
         bool "Machine Check Exception"
         depends on !X86_VOYAGER
diff --git a/arch/i386/Kconfig.cpu b/arch/i386/Kconfig.cpu
new file mode 100644
index 000000000000..53bbb3c008ee
--- /dev/null
+++ b/arch/i386/Kconfig.cpu
@@ -0,0 +1,309 @@
+# Put here option for CPU selection and depending optimization
+if !X86_ELAN
+
+choice
+        prompt "Processor family"
+        default M686
+
+config M386
+        bool "386"
+        ---help---
+          This is the processor type of your CPU. This information is used for
+          optimizing purposes. In order to compile a kernel that can run on
+          all x86 CPU types (albeit not optimally fast), you can specify
+          "386" here.
+
+          The kernel will not necessarily run on earlier architectures than
+          the one you have chosen, e.g. a Pentium optimized kernel will run on
+          a PPro, but not necessarily on a i486.
+
+          Here are the settings recommended for greatest speed:
+          - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
+          486DLC/DLC2, UMC 486SX-S and NexGen Nx586.  Only "386" kernels
+          will run on a 386 class machine.
+          - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
+          SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
+          - "586" for generic Pentium CPUs lacking the TSC
+          (time stamp counter) register.
+          - "Pentium-Classic" for the Intel Pentium.
+          - "Pentium-MMX" for the Intel Pentium MMX.
+          - "Pentium-Pro" for the Intel Pentium Pro.
+          - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
+          - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
+          - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
+          - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
+          - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
+          - "Crusoe" for the Transmeta Crusoe series.
+          - "Efficeon" for the Transmeta Efficeon series.
+          - "Winchip-C6" for original IDT Winchip.
+          - "Winchip-2" for IDT Winchip 2.
+          - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
+          - "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
+          - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
+          - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above).
+
+          If you don't know what to do, choose "386".
+
+config M486
+        bool "486"
+        help
+          Select this for a 486 series processor, either Intel or one of the
+          compatible processors from AMD, Cyrix, IBM, or Intel.  Includes DX,
+          DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
+          U5S.
+
+config M586
+        bool "586/K5/5x86/6x86/6x86MX"
+        help
+          Select this for an 586 or 686 series processor such as the AMD K5,
+          the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
+          assume the RDTSC (Read Time Stamp Counter) instruction.
+
+config M586TSC
+        bool "Pentium-Classic"
+        help
+          Select this for a Pentium Classic processor with the RDTSC (Read
+          Time Stamp Counter) instruction for benchmarking.
+
+config M586MMX
+        bool "Pentium-MMX"
+        help
+          Select this for a Pentium with the MMX graphics/multimedia
+          extended instructions.
+
+config M686
+        bool "Pentium-Pro"
+        help
+          Select this for Intel Pentium Pro chips.  This enables the use of
+          Pentium Pro extended instructions, and disables the init-time guard
+          against the f00f bug found in earlier Pentiums.
+
+config MPENTIUMII
+        bool "Pentium-II/Celeron(pre-Coppermine)"
+        help
+          Select this for Intel chips based on the Pentium-II and
+          pre-Coppermine Celeron core.  This option enables an unaligned
+          copy optimization, compiles the kernel with optimization flags
+          tailored for the chip, and applies any applicable Pentium Pro
+          optimizations.
+
+config MPENTIUMIII
+        bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
+        help
+          Select this for Intel chips based on the Pentium-III and
+          Celeron-Coppermine core.  This option enables use of some
+          extended prefetch instructions in addition to the Pentium II
+          extensions.
+
+config MPENTIUMM
+        bool "Pentium M"
+        help
+          Select this for Intel Pentium M (not Pentium-4 M)
+          notebook chips.
+
+config MPENTIUM4
+        bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/Xeon"
+        help
+          Select this for Intel Pentium 4 chips.  This includes the
+          Pentium 4, P4-based Celeron and Xeon, and Pentium-4 M
+          (not Pentium M) chips.  This option enables compile flags
+          optimized for the chip, uses the correct cache shift, and
+          applies any applicable Pentium III optimizations.
+
+config MK6
+        bool "K6/K6-II/K6-III"
+        help
+          Select this for an AMD K6-family processor.  Enables use of
+          some extended instructions, and passes appropriate optimization
+          flags to GCC.
+
+config MK7
+        bool "Athlon/Duron/K7"
+        help
+          Select this for an AMD Athlon K7-family processor.  Enables use of
+          some extended instructions, and passes appropriate optimization
+          flags to GCC.
+
+config MK8
+        bool "Opteron/Athlon64/Hammer/K8"
+        help
+          Select this for an AMD Opteron or Athlon64 Hammer-family processor.  Enables
+          use of some extended instructions, and passes appropriate optimization
+          flags to GCC.
+
+config MCRUSOE
+        bool "Crusoe"
+        help
+          Select this for a Transmeta Crusoe processor.  Treats the processor
+          like a 586 with TSC, and sets some GCC optimization flags (like a
+          Pentium Pro with no alignment requirements).
+
+config MEFFICEON
+        bool "Efficeon"
+        help
+          Select this for a Transmeta Efficeon processor.
+
+config MWINCHIPC6
+        bool "Winchip-C6"
+        help
+          Select this for an IDT Winchip C6 chip.  Linux and GCC
+          treat this chip as a 586TSC with some extended instructions
+          and alignment requirements.
+
+config MWINCHIP2
+        bool "Winchip-2"
+        help
+          Select this for an IDT Winchip-2.  Linux and GCC
+          treat this chip as a 586TSC with some extended instructions
+          and alignment requirements.
+
+config MWINCHIP3D
+        bool "Winchip-2A/Winchip-3"
+        help
+          Select this for an IDT Winchip-2A or 3.  Linux and GCC
+          treat this chip as a 586TSC with some extended instructions
+          and alignment reqirements.  Also enable out of order memory
+          stores for this CPU, which can increase performance of some
+          operations.
+
+config MGEODEGX1
+        bool "GeodeGX1"
+        help
+          Select this for a Geode GX1 (Cyrix MediaGX) chip.
+
+config MCYRIXIII
+        bool "CyrixIII/VIA-C3"
+        help
+          Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
+          treat this chip as a generic 586. Whilst the CPU is 686 class,
+          it lacks the cmov extension which gcc assumes is present when
+          generating 686 code.
+          Note that Nehemiah (Model 9) and above will not boot with this
+          kernel due to them lacking the 3DNow! instructions used in earlier
+          incarnations of the CPU.
+
+config MVIAC3_2
+        bool "VIA C3-2 (Nehemiah)"
+        help
+          Select this for a VIA C3 "Nehemiah". Selecting this enables usage
+          of SSE and tells gcc to treat the CPU as a 686.
+          Note, this kernel will not boot on older (pre model 9) C3s.
+
+endchoice
+
+config X86_GENERIC
+       bool "Generic x86 support"
+       help
+          Instead of just including optimizations for the selected
+          x86 variant (e.g. PII, Crusoe or Athlon), include some more
+          generic optimizations as well. This will make the kernel
+          perform better on x86 CPUs other than that selected.
+
+          This is really intended for distributors who need more
+          generic optimizations.
+
+endif
+
+#
+# Define implied options from the CPU selection here
+#
+config X86_CMPXCHG
+        bool
+        depends on !M386
+        default y
+
+config X86_XADD
+        bool
+        depends on !M386
+        default y
+
+config X86_L1_CACHE_SHIFT
+        int
+        default "7" if MPENTIUM4 || X86_GENERIC
+        default "4" if X86_ELAN || M486 || M386
+        default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODEGX1
+        default "6" if MK7 || MK8 || MPENTIUMM
+
+config RWSEM_GENERIC_SPINLOCK
+        bool
+        depends on M386
+        default y
+
+config RWSEM_XCHGADD_ALGORITHM
+        bool
+        depends on !M386
+        default y
+
+config GENERIC_CALIBRATE_DELAY
+        bool
+        default y
+
+config X86_PPRO_FENCE
+        bool
+        depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
+        default y
+
+config X86_F00F_BUG
+        bool
+        depends on M586MMX || M586TSC || M586 || M486 || M386
+        default y
+
+config X86_WP_WORKS_OK
+        bool
+        depends on !M386
+        default y
+
+config X86_INVLPG
+        bool
+        depends on !M386
+        default y
+
+config X86_BSWAP
+        bool
+        depends on !M386
+        default y
+
+config X86_POPAD_OK
+        bool
+        depends on !M386
+        default y
+
+config X86_CMPXCHG64
+        bool
+        depends on !M386 && !M486
+        default y
+
+config X86_ALIGNMENT_16
+        bool
+        depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+        default y
+
+config X86_GOOD_APIC
+        bool
+        depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON
+        default y
+
+config X86_INTEL_USERCOPY
+        bool
+        depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON
+        default y
+
+config X86_USE_PPRO_CHECKSUM
+        bool
+        depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON
+        default y
+
+config X86_USE_3DNOW
+        bool
+        depends on MCYRIXIII || MK7
+        default y
+
+config X86_OOSTORE
+        bool
+        depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
+        default y
+
+config X86_TSC
+        bool
+        depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MGEODEGX1) && !X86_NUMAQ
+        default y
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 09951990a622..d121ea18460f 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -34,35 +34,8 @@ CFLAGS += -pipe -msoft-float
 # prevent gcc from keeping the stack 16 byte aligned
 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 
-align := $(cc-option-align)
-cflags-$(CONFIG_M386)           += -march=i386
-cflags-$(CONFIG_M486)           += -march=i486
-cflags-$(CONFIG_M586)           += -march=i586
-cflags-$(CONFIG_M586TSC)        += -march=i586
-cflags-$(CONFIG_M586MMX)        += $(call cc-option,-march=pentium-mmx,-march=i586)
-cflags-$(CONFIG_M686)           += -march=i686
-cflags-$(CONFIG_MPENTIUMII)     += -march=i686 $(call cc-option,-mtune=pentium2)
-cflags-$(CONFIG_MPENTIUMIII)    += -march=i686 $(call cc-option,-mtune=pentium3)
-cflags-$(CONFIG_MPENTIUMM)      += -march=i686 $(call cc-option,-mtune=pentium3)
-cflags-$(CONFIG_MPENTIUM4)      += -march=i686 $(call cc-option,-mtune=pentium4)
-cflags-$(CONFIG_MK6)            += -march=k6
-# Please note, that patches that add -march=athlon-xp and friends are pointless.
-# They make zero difference whatsosever to performance at this time.
-cflags-$(CONFIG_MK7)            += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
-cflags-$(CONFIG_MK8)            += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
-cflags-$(CONFIG_MCRUSOE)        += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MEFFICEON)      += -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MWINCHIPC6)     += $(call cc-option,-march=winchip-c6,-march=i586)
-cflags-$(CONFIG_MWINCHIP2)      += $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MWINCHIP3D)     += $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MCYRIXIII)      += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MVIAC3_2)       += $(call cc-option,-march=c3-2,-march=i686)
-
-# AMD Elan support
-cflags-$(CONFIG_X86_ELAN)       += -march=i486
-
-# Geode GX1 support
-cflags-$(CONFIG_MGEODEGX1)              += $(call cc-option,-march=pentium-mmx,-march=i486)
+# CPU-specific tuning. Anything which can be shared with UML should go here.
+include $(srctree)/arch/i386/Makefile.cpu
 
 # -mregparm=3 works ok on gcc-3.0 and later
 #
diff --git a/arch/i386/Makefile.cpu b/arch/i386/Makefile.cpu
new file mode 100644
index 000000000000..8e51456df23d
--- /dev/null
+++ b/arch/i386/Makefile.cpu
@@ -0,0 +1,41 @@
+# CPU tuning section - shared with UML.
+# Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
+
+#-mtune exists since gcc 3.4, and some -mcpu flavors didn't exist in gcc 2.95.
+HAS_MTUNE       := $(call cc-option-yn, -mtune=i386)
+ifeq ($(HAS_MTUNE),y)
+tune            = $(call cc-option,-mtune=$(1),)
+else
+tune            = $(call cc-option,-mcpu=$(1),)
+endif
+
+align := $(cc-option-align)
+cflags-$(CONFIG_M386)           += -march=i386
+cflags-$(CONFIG_M486)           += -march=i486
+cflags-$(CONFIG_M586)           += -march=i586
+cflags-$(CONFIG_M586TSC)        += -march=i586
+cflags-$(CONFIG_M586MMX)        += $(call cc-option,-march=pentium-mmx,-march=i586)
+cflags-$(CONFIG_M686)           += -march=i686
+cflags-$(CONFIG_MPENTIUMII)     += -march=i686 $(call tune,pentium2)
+cflags-$(CONFIG_MPENTIUMIII)    += -march=i686 $(call tune,pentium3)
+cflags-$(CONFIG_MPENTIUMM)      += -march=i686 $(call tune,pentium3)
+cflags-$(CONFIG_MPENTIUM4)      += -march=i686 $(call tune,pentium4)
+cflags-$(CONFIG_MK6)            += -march=k6
+# Please note, that patches that add -march=athlon-xp and friends are pointless.
+# They make zero difference whatsosever to performance at this time.
+cflags-$(CONFIG_MK7)            += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
+cflags-$(CONFIG_MK8)            += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
+cflags-$(CONFIG_MCRUSOE)        += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MEFFICEON)      += -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MWINCHIPC6)     += $(call cc-option,-march=winchip-c6,-march=i586)
+cflags-$(CONFIG_MWINCHIP2)      += $(call cc-option,-march=winchip2,-march=i586)
+cflags-$(CONFIG_MWINCHIP3D)     += $(call cc-option,-march=winchip2,-march=i586)
+cflags-$(CONFIG_MCYRIXIII)      += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MVIAC3_2)       += $(call cc-option,-march=c3-2,-march=i686)
+
+# AMD Elan support
+cflags-$(CONFIG_X86_ELAN)       += -march=i486
+
+# Geode GX1 support
+cflags-$(CONFIG_MGEODEGX1)              += $(call cc-option,-march=pentium-mmx,-march=i486)
+
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index 5546ddebec33..9204be6eedb3 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -803,6 +803,7 @@ no_apic:
 
 void __init init_apic_mappings(void)
 {
+        unsigned int orig_apicid;
         unsigned long apic_phys;
 
         /*
@@ -824,8 +825,11 @@ void __init init_apic_mappings(void)
          * Fetch the APIC ID of the BSP in case we have a
          * default configuration (or the MP table is broken).
          */
-        if (boot_cpu_physical_apicid == -1U)
-                boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
+        orig_apicid = boot_cpu_physical_apicid;
+        boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
+        if ((orig_apicid != -1U) && (orig_apicid != boot_cpu_physical_apicid))
+                printk(KERN_WARNING "Boot APIC ID in local APIC unexpected (%d vs %d)",
+                        orig_apicid, boot_cpu_physical_apicid);
 
 #ifdef CONFIG_X86_IO_APIC
         {
@@ -1046,10 +1050,11 @@ static unsigned int calibration_result;
 
 void __init setup_boot_APIC_clock(void)
 {
+        unsigned long flags;
         apic_printk(APIC_VERBOSE, "Using local APIC timer interrupts.\n");
         using_apic_timer = 1;
 
-        local_irq_disable();
+        local_irq_save(flags);
 
         calibration_result = calibrate_APIC_clock();
         /*
@@ -1057,7 +1062,7 @@ void __init setup_boot_APIC_clock(void)
          */
         setup_APIC_timer(calibration_result);
 
-        local_irq_enable();
+        local_irq_restore(flags);
 }
 
 void __devinit setup_secondary_APIC_clock(void)
@@ -1254,40 +1259,81 @@ fastcall void smp_error_interrupt(struct pt_regs *regs)
 }
 
 /*
- * This initializes the IO-APIC and APIC hardware if this is
- * a UP kernel.
+ * This initializes the IO-APIC and APIC hardware.
  */
-int __init APIC_init_uniprocessor (void)
+int __init APIC_init(void)
 {
-        if (enable_local_apic < 0)
-                clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+        if (enable_local_apic < 0) {
+                printk(KERN_INFO "APIC disabled\n");
+                return -1;
+        }
 
-        if (!smp_found_config && !cpu_has_apic)
+        /* See if we have a SMP configuration or have forced enabled
+         * the local apic.
+         */
+        if (!smp_found_config && !acpi_lapic && !cpu_has_apic) {
+                enable_local_apic = -1;
                 return -1;
+        }
 
         /*
-         * Complain if the BIOS pretends there is one.
+         * Complain if the BIOS pretends there is an apic.
+         * Then get out because we don't have an a local apic.
          */
         if (!cpu_has_apic && APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) {
                 printk(KERN_ERR "BIOS bug, local APIC #%d not detected!...\n",
                         boot_cpu_physical_apicid);
+                printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n");
+                enable_local_apic = -1;
                 return -1;
         }
 
         verify_local_APIC();
 
+        /*
+         * Should not be necessary because the MP table should list the boot
+         * CPU too, but we do it for the sake of robustness anyway.
+         * Makes no sense to do this check in clustered apic mode, so skip it
+         */
+        if (!check_phys_apicid_present(boot_cpu_physical_apicid)) {
+                printk("weird, boot CPU (#%d) not listed by the BIOS.\n",
+                                boot_cpu_physical_apicid);
+                physid_set(boot_cpu_physical_apicid, phys_cpu_present_map);
+        }
+
+        /*
+         * Switch from PIC to APIC mode.
+         */
         connect_bsp_APIC();
+        setup_local_APIC();
 
-        phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid);
+#ifdef CONFIG_X86_IO_APIC
+        /*
+         * Now start the IO-APICs
+         */
+        if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
+                setup_IO_APIC();
+#endif
+        return 0;
+}
 
-        setup_local_APIC();
+void __init APIC_late_time_init(void)
+{
+        /* Improve our loops per jiffy estimate */
+        loops_per_jiffy = ((1000 + HZ - 1)/HZ)*cpu_khz;
+        boot_cpu_data.loops_per_jiffy = loops_per_jiffy;
+        cpu_data[0].loops_per_jiffy = loops_per_jiffy;
+
+        /* setup_apic_nmi_watchdog doesn't work properly before cpu_khz is
+         * initialized.  So redo it here to ensure the boot cpu is setup
+         * properly.
+         */
+        if (nmi_watchdog == NMI_LOCAL_APIC)
+                setup_apic_nmi_watchdog();
 
 #ifdef CONFIG_X86_IO_APIC
-        if (smp_found_config)
-                if (!skip_ioapic_setup && nr_ioapics)
-                        setup_IO_APIC();
+        if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
+                IO_APIC_late_time_init();
 #endif
         setup_boot_APIC_clock();
-
-        return 0;
 }
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index d7811c4e8b50..d2ef0c2aa93e 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -597,12 +597,14 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
         cpumask_t               cpus;
         int                     cpu;
         struct desc_struct      save_desc_40;
+        struct desc_struct      *gdt;
 
         cpus = apm_save_cpus();
         
         cpu = get_cpu();
-        save_desc_40 = per_cpu(cpu_gdt_table, cpu)[0x40 / 8];
-        per_cpu(cpu_gdt_table, cpu)[0x40 / 8] = bad_bios_desc;
+        gdt = get_cpu_gdt_table(cpu);
+        save_desc_40 = gdt[0x40 / 8];
+        gdt[0x40 / 8] = bad_bios_desc;
 
         local_save_flags(flags);
         APM_DO_CLI;
@@ -610,7 +612,7 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
         apm_bios_call_asm(func, ebx_in, ecx_in, eax, ebx, ecx, edx, esi);
         APM_DO_RESTORE_SEGS;
         local_irq_restore(flags);
-        per_cpu(cpu_gdt_table, cpu)[0x40 / 8] = save_desc_40;
+        gdt[0x40 / 8] = save_desc_40;
         put_cpu();
         apm_restore_cpus(cpus);
         
@@ -639,13 +641,14 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
         cpumask_t               cpus;
         int                     cpu;
         struct desc_struct      save_desc_40;
-
+        struct desc_struct      *gdt;
 
         cpus = apm_save_cpus();
         
         cpu = get_cpu();
-        save_desc_40 = per_cpu(cpu_gdt_table, cpu)[0x40 / 8];
-        per_cpu(cpu_gdt_table, cpu)[0x40 / 8] = bad_bios_desc;
+        gdt = get_cpu_gdt_table(cpu);
+        save_desc_40 = gdt[0x40 / 8];
+        gdt[0x40 / 8] = bad_bios_desc;
 
         local_save_flags(flags);
         APM_DO_CLI;
@@ -653,7 +656,7 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
         error = apm_bios_call_simple_asm(func, ebx_in, ecx_in, eax);
         APM_DO_RESTORE_SEGS;
         local_irq_restore(flags);
-        __get_cpu_var(cpu_gdt_table)[0x40 / 8] = save_desc_40;
+        gdt[0x40 / 8] = save_desc_40;
         put_cpu();
         apm_restore_cpus(cpus);
         return error;
@@ -2295,35 +2298,36 @@ static int __init apm_init(void)
         apm_bios_entry.segment = APM_CS;
 
         for (i = 0; i < NR_CPUS; i++) {
-                set_base(per_cpu(cpu_gdt_table, i)[APM_CS >> 3],
+                struct desc_struct *gdt = get_cpu_gdt_table(i);
+                set_base(gdt[APM_CS >> 3],
                          __va((unsigned long)apm_info.bios.cseg << 4));
-                set_base(per_cpu(cpu_gdt_table, i)[APM_CS_16 >> 3],
+                set_base(gdt[APM_CS_16 >> 3],
                          __va((unsigned long)apm_info.bios.cseg_16 << 4));
-                set_base(per_cpu(cpu_gdt_table, i)[APM_DS >> 3],
+                set_base(gdt[APM_DS >> 3],
                          __va((unsigned long)apm_info.bios.dseg << 4));
 #ifndef APM_RELAX_SEGMENTS
                 if (apm_info.bios.version == 0x100) {
 #endif
                         /* For ASUS motherboard, Award BIOS rev 110 (and others?) */
-                        _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS >> 3], 64 * 1024 - 1);
+                        _set_limit((char *)&gdt[APM_CS >> 3], 64 * 1024 - 1);
                         /* For some unknown machine. */
-                        _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS_16 >> 3], 64 * 1024 - 1);
+                        _set_limit((char *)&gdt[APM_CS_16 >> 3], 64 * 1024 - 1);
                         /* For the DEC Hinote Ultra CT475 (and others?) */
-                        _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_DS >> 3], 64 * 1024 - 1);
+                        _set_limit((char *)&gdt[APM_DS >> 3], 64 * 1024 - 1);
 #ifndef APM_RELAX_SEGMENTS
                 } else {
-                        _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS >> 3],
+                        _set_limit((char *)&gdt[APM_CS >> 3],
                                 (apm_info.bios.cseg_len - 1) & 0xffff);
-                        _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS_16 >> 3],
+                        _set_limit((char *)&gdt[APM_CS_16 >> 3],
                                 (apm_info.bios.cseg_16_len - 1) & 0xffff);
-                        _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_DS >> 3],
+                        _set_limit((char *)&gdt[APM_DS >> 3],
                                 (apm_info.bios.dseg_len - 1) & 0xffff);
                       /* workaround for broken BIOSes */
                         if (apm_info.bios.cseg_len <= apm_info.bios.offset)
-                                _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS >> 3], 64 * 1024 -1);
+                                _set_limit((char *)&gdt[APM_CS >> 3], 64 * 1024 -1);
                        if (apm_info.bios.dseg_len <= 0x40) { /* 0x40 * 4kB == 64kB */
                                 /* for the BIOS that assumes granularity = 1 */
-                                per_cpu(cpu_gdt_table, i)[APM_DS >> 3].b |= 0x800000;
+                                gdt[APM_DS >> 3].b |= 0x800000;
                                 printk(KERN_NOTICE "apm: we set the granularity of dseg.\n");
                         }
                 }
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 9ad43be9a01f..74145a33cb0f 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -573,6 +573,7 @@ void __devinit cpu_init(void)
         int cpu = smp_processor_id();
         struct tss_struct * t = &per_cpu(init_tss, cpu);
         struct thread_struct *thread = &current->thread;
+        struct desc_struct *gdt = get_cpu_gdt_table(cpu);
         __u32 stk16_off = (__u32)&per_cpu(cpu_16bit_stack, cpu);
 
         if (cpu_test_and_set(cpu, cpu_initialized)) {
@@ -594,24 +595,16 @@ void __devinit cpu_init(void)
          * Initialize the per-CPU GDT with the boot GDT,
          * and set up the GDT descriptor:
          */
-        memcpy(&per_cpu(cpu_gdt_table, cpu), cpu_gdt_table,
-               GDT_SIZE);
+        memcpy(gdt, cpu_gdt_table, GDT_SIZE);
 
         /* Set up GDT entry for 16bit stack */
-        *(__u64 *)&(per_cpu(cpu_gdt_table, cpu)[GDT_ENTRY_ESPFIX_SS]) |=
+        *(__u64 *)(&gdt[GDT_ENTRY_ESPFIX_SS]) |=
                 ((((__u64)stk16_off) << 16) & 0x000000ffffff0000ULL) |
                 ((((__u64)stk16_off) << 32) & 0xff00000000000000ULL) |
                 (CPU_16BIT_STACK_SIZE - 1);
 
         cpu_gdt_descr[cpu].size = GDT_SIZE - 1;
-        cpu_gdt_descr[cpu].address =
-            (unsigned long)&per_cpu(cpu_gdt_table, cpu);
-
-        /*
-         * Set up the per-thread TLS descriptor cache:
-         */
-        memcpy(thread->tls_array, &per_cpu(cpu_gdt_table, cpu),
-                GDT_ENTRY_TLS_ENTRIES * 8);
+        cpu_gdt_descr[cpu].address = (unsigned long)gdt;
 
         load_gdt(&cpu_gdt_descr[cpu]);
         load_idt(&idt_descr);
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 822c8ce9d1f1..caa9f7711343 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -32,6 +32,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/compiler.h>
+#include <linux/sched.h>        /* current */
 #include <asm/io.h>
 #include <asm/delay.h>
 #include <asm/uaccess.h>
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index aa622d52c6e5..270f2188d68b 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -28,6 +28,7 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/cpumask.h>
+#include <linux/sched.h>        /* current / set_cpus_allowed() */
 
 #include <asm/processor.h> 
 #include <asm/msr.h>
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 58ca98fdc2ca..2d5c9adba0cd 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -32,6 +32,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/cpumask.h>
+#include <linux/sched.h>        /* for current / set_cpus_allowed() */
 
 #include <asm/msr.h>
 #include <asm/io.h>
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index c397b6220430..1465974256c9 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 #include <linux/config.h>
+#include <linux/sched.h>        /* current */
 #include <linux/delay.h>
 #include <linux/compiler.h>
 
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index 9e0d5f83cb9f..4dc42a189ae5 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -3,6 +3,7 @@
  *
  *      Changes:
  *      Venkatesh Pallipadi     : Adding cache identification through cpuid(4)
+ *              Ashok Raj <ashok.raj@intel.com>: Work with CPU hotplug infrastructure.
  */
 
 #include <linux/init.h>
@@ -10,6 +11,7 @@
 #include <linux/device.h>
 #include <linux/compiler.h>
 #include <linux/cpu.h>
+#include <linux/sched.h>
 
 #include <asm/processor.h>
 #include <asm/smp.h>
@@ -28,7 +30,7 @@ struct _cache_table
 };
 
 /* all the cache descriptor types we care about (no TLB or trace cache entries) */
-static struct _cache_table cache_table[] __devinitdata =
+static struct _cache_table cache_table[] __cpuinitdata =
 {
         { 0x06, LVL_1_INST, 8 },        /* 4-way set assoc, 32 byte line size */
         { 0x08, LVL_1_INST, 16 },       /* 4-way set assoc, 32 byte line size */
@@ -117,10 +119,9 @@ struct _cpuid4_info {
         cpumask_t shared_cpu_map;
 };
 
-#define MAX_CACHE_LEAVES                4
 static unsigned short                   num_cache_leaves;
 
-static int __devinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
+static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
 {
         unsigned int            eax, ebx, ecx, edx;
         union _cpuid4_leaf_eax  cache_eax;
@@ -144,23 +145,18 @@ static int __init find_num_cache_leaves(void)
 {
         unsigned int            eax, ebx, ecx, edx;
         union _cpuid4_leaf_eax  cache_eax;
-        int                     i;
-        int                     retval;
+        int                     i = -1;
 
-        retval = MAX_CACHE_LEAVES;
-        /* Do cpuid(4) loop to find out num_cache_leaves */
-        for (i = 0; i < MAX_CACHE_LEAVES; i++) {
+        do {
+                ++i;
+                /* Do cpuid(4) loop to find out num_cache_leaves */
                 cpuid_count(4, i, &eax, &ebx, &ecx, &edx);
                 cache_eax.full = eax;
-                if (cache_eax.split.type == CACHE_TYPE_NULL) {
-                        retval = i;
-                        break;
-                }
-        }
-        return retval;
+        } while (cache_eax.split.type != CACHE_TYPE_NULL);
+        return i;
 }
 
-unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
+unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
 {
         unsigned int trace = 0, l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */
         unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */
@@ -284,13 +280,7 @@ unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
                 if ( l3 )
                         printk(KERN_INFO "CPU: L3 cache: %dK\n", l3);
 
-                /*
-                 * This assumes the L3 cache is shared; it typically lives in
-                 * the northbridge.  The L1 caches are included by the L2
-                 * cache, and so should not be included for the purpose of
-                 * SMP switching weights.
-                 */
-                c->x86_cache_size = l2 ? l2 : (l1i+l1d);
+                c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));
         }
 
         return l2;
@@ -301,7 +291,7 @@ static struct _cpuid4_info *cpuid4_info[NR_CPUS];
 #define CPUID4_INFO_IDX(x,y)    (&((cpuid4_info[x])[y]))
 
 #ifdef CONFIG_SMP
-static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
+static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
 {
         struct _cpuid4_info     *this_leaf;
         unsigned long num_threads_sharing;
@@ -334,7 +324,7 @@ static void free_cache_attributes(unsigned int cpu)
         cpuid4_info[cpu] = NULL;
 }
 
-static int __devinit detect_cache_attributes(unsigned int cpu)
+static int __cpuinit detect_cache_attributes(unsigned int cpu)
 {
         struct _cpuid4_info     *this_leaf;
         unsigned long           j;
@@ -511,7 +501,7 @@ static void cpuid4_cache_sysfs_exit(unsigned int cpu)
         free_cache_attributes(cpu);
 }
 
-static int __devinit cpuid4_cache_sysfs_init(unsigned int cpu)
+static int __cpuinit cpuid4_cache_sysfs_init(unsigned int cpu)
 {
 
         if (num_cache_leaves == 0)
@@ -542,7 +532,7 @@ err_out:
 }
 
 /* Add/Remove cache interface for CPU device */
-static int __devinit cache_add_dev(struct sys_device * sys_dev)
+static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 {
         unsigned int cpu = sys_dev->id;
         unsigned long i, j;
@@ -579,7 +569,7 @@ static int __devinit cache_add_dev(struct sys_device * sys_dev)
         return retval;
 }
 
-static int __devexit cache_remove_dev(struct sys_device * sys_dev)
+static void __cpuexit cache_remove_dev(struct sys_device * sys_dev)
 {
         unsigned int cpu = sys_dev->id;
         unsigned long i;
@@ -588,24 +578,49 @@ static int __devexit cache_remove_dev(struct sys_device * sys_dev)
                 kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
         kobject_unregister(cache_kobject[cpu]);
         cpuid4_cache_sysfs_exit(cpu);
-        return 0;
+        return;
+}
+
+static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
+                                        unsigned long action, void *hcpu)
+{
+        unsigned int cpu = (unsigned long)hcpu;
+        struct sys_device *sys_dev;
+
+        sys_dev = get_cpu_sysdev(cpu);
+        switch (action) {
+        case CPU_ONLINE:
+                cache_add_dev(sys_dev);
+                break;
+        case CPU_DEAD:
+                cache_remove_dev(sys_dev);
+                break;
+        }
+        return NOTIFY_OK;
 }
 
-static struct sysdev_driver cache_sysdev_driver = {
-        .add = cache_add_dev,
-        .remove = __devexit_p(cache_remove_dev),
+static struct notifier_block cacheinfo_cpu_notifier =
+{
+    .notifier_call = cacheinfo_cpu_callback,
 };
 
-/* Register/Unregister the cpu_cache driver */
-static int __devinit cache_register_driver(void)
+static int __cpuinit cache_sysfs_init(void)
 {
+        int i;
+
         if (num_cache_leaves == 0)
                 return 0;
 
-        return sysdev_driver_register(&cpu_sysdev_class,&cache_sysdev_driver);
+        register_cpu_notifier(&cacheinfo_cpu_notifier);
+
+        for_each_online_cpu(i) {
+                cacheinfo_cpu_callback(&cacheinfo_cpu_notifier, CPU_ONLINE,
+                        (void *)(long)i);
+        }
+
+        return 0;
 }
 
-device_initcall(cache_register_driver);
+device_initcall(cache_sysfs_init);
 
 #endif
-
diff --git a/arch/i386/kernel/cpu/mcheck/p6.c b/arch/i386/kernel/cpu/mcheck/p6.c
index 3c035b8fa3d9..979b18bc95c1 100644
--- a/arch/i386/kernel/cpu/mcheck/p6.c
+++ b/arch/i386/kernel/cpu/mcheck/p6.c
@@ -102,11 +102,16 @@ void __devinit intel_p6_mcheck_init(struct cpuinfo_x86 *c)
                 wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
         nr_mce_banks = l & 0xff;
 
-        /* Don't enable bank 0 on intel P6 cores, it goes bang quickly. */
-        for (i=1; i<nr_mce_banks; i++) {
+        /*
+         * Following the example in IA-32 SDM Vol 3:
+         * - MC0_CTL should not be written
+         * - Status registers on all banks should be cleared on reset
+         */
+        for (i=1; i<nr_mce_banks; i++)
                 wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
+
+        for (i=0; i<nr_mce_banks; i++)
                 wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
-        }
 
         set_in_cr4 (X86_CR4_MCE);
         printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",
diff --git a/arch/i386/kernel/cpu/mtrr/if.c b/arch/i386/kernel/cpu/mtrr/if.c
index 1923e0aed26a..cf39e205d33c 100644
--- a/arch/i386/kernel/cpu/mtrr/if.c
+++ b/arch/i386/kernel/cpu/mtrr/if.c
@@ -149,60 +149,89 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
         return -EINVAL;
 }
 
-static int
-mtrr_ioctl(struct inode *inode, struct file *file,
-           unsigned int cmd, unsigned long __arg)
+static long
+mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
 {
-        int err;
+        int err = 0;
         mtrr_type type;
         struct mtrr_sentry sentry;
         struct mtrr_gentry gentry;
         void __user *arg = (void __user *) __arg;
 
         switch (cmd) {
+        case MTRRIOC_ADD_ENTRY:
+        case MTRRIOC_SET_ENTRY:
+        case MTRRIOC_DEL_ENTRY:
+        case MTRRIOC_KILL_ENTRY:
+        case MTRRIOC_ADD_PAGE_ENTRY:
+        case MTRRIOC_SET_PAGE_ENTRY:
+        case MTRRIOC_DEL_PAGE_ENTRY:
+        case MTRRIOC_KILL_PAGE_ENTRY:
+                if (copy_from_user(&sentry, arg, sizeof sentry))
+                        return -EFAULT;
+                break;
+        case MTRRIOC_GET_ENTRY:
+        case MTRRIOC_GET_PAGE_ENTRY:
+                if (copy_from_user(&gentry, arg, sizeof gentry))
+                        return -EFAULT;
+                break;
+#ifdef CONFIG_COMPAT
+        case MTRRIOC32_ADD_ENTRY:
+        case MTRRIOC32_SET_ENTRY:
+        case MTRRIOC32_DEL_ENTRY:
+        case MTRRIOC32_KILL_ENTRY:
+        case MTRRIOC32_ADD_PAGE_ENTRY:
+        case MTRRIOC32_SET_PAGE_ENTRY:
+        case MTRRIOC32_DEL_PAGE_ENTRY:
+        case MTRRIOC32_KILL_PAGE_ENTRY: {
+                struct mtrr_sentry32 __user *s32 = (struct mtrr_sentry32 __user *)__arg;
+                err = get_user(sentry.base, &s32->base);
+                err |= get_user(sentry.size, &s32->size);
+                err |= get_user(sentry.type, &s32->type);
+                if (err)
+                        return err;
+                break;
+        }
+        case MTRRIOC32_GET_ENTRY:
+        case MTRRIOC32_GET_PAGE_ENTRY: {
+                struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
+                err = get_user(gentry.regnum, &g32->regnum);
+                err |= get_user(gentry.base, &g32->base);
+                err |= get_user(gentry.size, &g32->size);
+                err |= get_user(gentry.type, &g32->type);
+                if (err)
+                        return err;
+                break;
+        }
+#endif
+        }
+
+        switch (cmd) {
         default:
                 return -ENOTTY;
         case MTRRIOC_ADD_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err =
                     mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
                                   file, 0);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_SET_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err = mtrr_add(sentry.base, sentry.size, sentry.type, 0);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_DEL_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err = mtrr_file_del(sentry.base, sentry.size, file, 0);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_KILL_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err = mtrr_del(-1, sentry.base, sentry.size);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_GET_ENTRY:
-                if (copy_from_user(&gentry, arg, sizeof gentry))
-                        return -EFAULT;
                 if (gentry.regnum >= num_var_ranges)
                         return -EINVAL;
                 mtrr_if->get(gentry.regnum, &gentry.base, &gentry.size, &type);
@@ -217,60 +246,59 @@ mtrr_ioctl(struct inode *inode, struct file *file,
                         gentry.type = type;
                 }
 
-                if (copy_to_user(arg, &gentry, sizeof gentry))
-                        return -EFAULT;
                 break;
         case MTRRIOC_ADD_PAGE_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err =
                     mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
                                   file, 1);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_SET_PAGE_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err = mtrr_add_page(sentry.base, sentry.size, sentry.type, 0);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_DEL_PAGE_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err = mtrr_file_del(sentry.base, sentry.size, file, 1);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_KILL_PAGE_ENTRY:
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;
-                if (copy_from_user(&sentry, arg, sizeof sentry))
-                        return -EFAULT;
                 err = mtrr_del_page(-1, sentry.base, sentry.size);
-                if (err < 0)
-                        return err;
                 break;
         case MTRRIOC_GET_PAGE_ENTRY:
-                if (copy_from_user(&gentry, arg, sizeof gentry))
-                        return -EFAULT;
                 if (gentry.regnum >= num_var_ranges)
                         return -EINVAL;
                 mtrr_if->get(gentry.regnum, &gentry.base, &gentry.size, &type);
                 gentry.type = type;
+                break;
+        }
+
+        if (err)
+                return err;
 
+        switch(cmd) {
+        case MTRRIOC_GET_ENTRY:
+        case MTRRIOC_GET_PAGE_ENTRY:
                 if (copy_to_user(arg, &gentry, sizeof gentry))
-                        return -EFAULT;
+                        err = -EFAULT;
+                break;
+#ifdef CONFIG_COMPAT
+        case MTRRIOC32_GET_ENTRY:
+        case MTRRIOC32_GET_PAGE_ENTRY: {
+                struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
+                err = put_user(gentry.base, &g32->base);
+                err |= put_user(gentry.size, &g32->size);
+                err |= put_user(gentry.regnum, &g32->regnum);
+                err |= put_user(gentry.type, &g32->type);
                 break;
         }
-        return 0;
+#endif
+        }
+        return err;
 }
 
 static int
@@ -310,7 +338,8 @@ static struct file_operations mtrr_fops = {
         .read    = seq_read,
         .llseek  = seq_lseek,
         .write   = mtrr_write,
-        .ioctl   = mtrr_ioctl,
+        .unlocked_ioctl = mtrr_ioctl,
+        .compat_ioctl = mtrr_ioctl,
         .release = mtrr_close,
 };
 
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 8bd77d948a84..41b871ecf4b3 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -44,7 +44,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                 /* Intel-defined (#2) */
-                "pni", NULL, NULL, "monitor", "ds_cpl", NULL, NULL, "est",
+                "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", NULL, "est",
                 "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index 0248e084017c..af809ccf5fbe 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -21,7 +21,6 @@
 #include <asm/hardirq.h>
 #include <asm/nmi.h>
 #include <asm/hw_irq.h>
-#include <asm/apic.h>
 #include <mach_ipi.h>
 
 
@@ -148,7 +147,6 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
                 regs = &fixed_regs;
         }
         crash_save_this_cpu(regs, cpu);
-        disable_local_APIC();
         atomic_dec(&waiting_for_crash_ipi);
         /* Assume hlt works */
         halt();
@@ -188,7 +186,6 @@ static void nmi_shootdown_cpus(void)
         }
 
         /* Leave the nmi callback set */
-        disable_local_APIC();
 }
 #else
 static void nmi_shootdown_cpus(void)
@@ -213,9 +210,5 @@ void machine_crash_shutdown(struct pt_regs *regs)
         /* Make a note of crashing cpu. Will be used in NMI callback.*/
         crashing_cpu = smp_processor_id();
         nmi_shootdown_cpus();
-        lapic_shutdown();
-#if defined(CONFIG_X86_IO_APIC)
-        disable_IO_APIC();
-#endif
         crash_save_self(regs);
 }
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c
index 323ef8ab3244..d86f24909284 100644
--- a/arch/i386/kernel/i8259.c
+++ b/arch/i386/kernel/i8259.c
@@ -435,4 +435,8 @@ void __init init_IRQ(void)
                 setup_irq(FPU_IRQ, &fpu_irq);
 
         irq_ctx_init(smp_processor_id());
+
+#ifdef CONFIG_X86_LOCAL_APIC
+        APIC_init();
+#endif
 }
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index fb3991e8229e..5a77c52b20a9 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -46,6 +46,9 @@
 int (*ioapic_renumber_irq)(int ioapic, int irq);
 atomic_t irq_mis_count;
 
+/* Where if anywhere is the i8259 connect in external int mode */
+static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
+
 static DEFINE_SPINLOCK(ioapic_lock);
 
 /*
@@ -738,7 +741,7 @@ static int find_irq_entry(int apic, int pin, int type)
 /*
  * Find the pin to which IRQ[irq] (ISA) is connected
  */
-static int find_isa_irq_pin(int irq, int type)
+static int __init find_isa_irq_pin(int irq, int type)
 {
         int i;
 
@@ -758,6 +761,33 @@ static int find_isa_irq_pin(int irq, int type)
         return -1;
 }
 
+static int __init find_isa_irq_apic(int irq, int type)
+{
+        int i;
+
+        for (i = 0; i < mp_irq_entries; i++) {
+                int lbus = mp_irqs[i].mpc_srcbus;
+
+                if ((mp_bus_id_to_type[lbus] == MP_BUS_ISA ||
+                     mp_bus_id_to_type[lbus] == MP_BUS_EISA ||
+                     mp_bus_id_to_type[lbus] == MP_BUS_MCA ||
+                     mp_bus_id_to_type[lbus] == MP_BUS_NEC98
+                    ) &&
+                    (mp_irqs[i].mpc_irqtype == type) &&
+                    (mp_irqs[i].mpc_srcbusirq == irq))
+                        break;
+        }
+        if (i < mp_irq_entries) {
+                int apic;
+                for(apic = 0; apic < nr_ioapics; apic++) {
+                        if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic)
+                                return apic;
+                }
+        }
+
+        return -1;
+}
+
 /*
  * Find a specific PCI IRQ entry.
  * Not an __init, possibly needed by modules
@@ -1253,7 +1283,7 @@ static void __init setup_IO_APIC_irqs(void)
 /*
  * Set up the 8259A-master output pin:
  */
-static void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
+static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, int vector)
 {
         struct IO_APIC_route_entry entry;
         unsigned long flags;
@@ -1287,8 +1317,8 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
          * Add it to the IO-APIC irq-routing table:
          */
         spin_lock_irqsave(&ioapic_lock, flags);
-        io_apic_write(0, 0x11+2*pin, *(((int *)&entry)+1));
-        io_apic_write(0, 0x10+2*pin, *(((int *)&entry)+0));
+        io_apic_write(apic, 0x11+2*pin, *(((int *)&entry)+1));
+        io_apic_write(apic, 0x10+2*pin, *(((int *)&entry)+0));
         spin_unlock_irqrestore(&ioapic_lock, flags);
 
         enable_8259A_irq(0);
@@ -1595,7 +1625,8 @@ void /*__init*/ print_PIC(void)
 static void __init enable_IO_APIC(void)
 {
         union IO_APIC_reg_01 reg_01;
-        int i;
+        int i8259_apic, i8259_pin;
+        int i, apic;
         unsigned long flags;
 
         for (i = 0; i < PIN_MAP_SIZE; i++) {
@@ -1609,11 +1640,52 @@ static void __init enable_IO_APIC(void)
         /*
          * The number of IO-APIC IRQ registers (== #pins):
          */
-        for (i = 0; i < nr_ioapics; i++) {
+        for (apic = 0; apic < nr_ioapics; apic++) {
                 spin_lock_irqsave(&ioapic_lock, flags);
-                reg_01.raw = io_apic_read(i, 1);
+                reg_01.raw = io_apic_read(apic, 1);
                 spin_unlock_irqrestore(&ioapic_lock, flags);
-                nr_ioapic_registers[i] = reg_01.bits.entries+1;
+                nr_ioapic_registers[apic] = reg_01.bits.entries+1;
+        }
+        for(apic = 0; apic < nr_ioapics; apic++) {
+                int pin;
+                /* See if any of the pins is in ExtINT mode */
+                for(pin = 0; pin < nr_ioapic_registers[i]; pin++) {
+                        struct IO_APIC_route_entry entry;
+                        spin_lock_irqsave(&ioapic_lock, flags);
+                        *(((int *)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin);
+                        *(((int *)&entry) + 1) = io_apic_read(apic, 0x11 + 2 * pin);
+                        spin_unlock_irqrestore(&ioapic_lock, flags);
+
+
+                        /* If the interrupt line is enabled and in ExtInt mode
+                         * I have found the pin where the i8259 is connected.
+                         */
+                        if ((entry.mask == 0) && (entry.delivery_mode == dest_ExtINT)) {
+                                ioapic_i8259.apic = apic;
+                                ioapic_i8259.pin  = pin;
+                                goto found_i8259;
+                        }
+                }
+        }
+ found_i8259:
+        /* Look to see what if the MP table has reported the ExtINT */
+        /* If we could not find the appropriate pin by looking at the ioapic
+         * the i8259 probably is not connected the ioapic but give the
+         * mptable a chance anyway.
+         */
+        i8259_pin  = find_isa_irq_pin(0, mp_ExtINT);
+        i8259_apic = find_isa_irq_apic(0, mp_ExtINT);
+        /* Trust the MP table if nothing is setup in the hardware */
+        if ((ioapic_i8259.pin == -1) && (i8259_pin >= 0)) {
+                printk(KERN_WARNING "ExtINT not setup in hardware but reported by MP table\n");
+                ioapic_i8259.pin  = i8259_pin;
+                ioapic_i8259.apic = i8259_apic;
+        }
+        /* Complain if the MP table and the hardware disagree */
+        if (((ioapic_i8259.apic != i8259_apic) || (ioapic_i8259.pin != i8259_pin)) &&
+                (i8259_pin >= 0) && (ioapic_i8259.pin >= 0))
+        {
+                printk(KERN_WARNING "ExtINT in hardware and MP table differ\n");
         }
 
         /*
@@ -1627,7 +1699,6 @@ static void __init enable_IO_APIC(void)
  */
 void disable_IO_APIC(void)
 {
-        int pin;
         /*
          * Clear the IO-APIC before rebooting:
          */
@@ -1638,8 +1709,7 @@ void disable_IO_APIC(void)
          * Put that IOAPIC in virtual wire mode
          * so legacy interrupts can be delivered.
          */
-        pin = find_isa_irq_pin(0, mp_ExtINT);
-        if (pin != -1) {
+        if (ioapic_i8259.pin != -1) {
                 struct IO_APIC_route_entry entry;
                 unsigned long flags;
 
@@ -1650,7 +1720,7 @@ void disable_IO_APIC(void)
                 entry.polarity        = 0; /* High */
                 entry.delivery_status = 0;
                 entry.dest_mode       = 0; /* Physical */
-                entry.delivery_mode   = 7; /* ExtInt */
+                entry.delivery_mode   = dest_ExtINT; /* ExtInt */
                 entry.vector          = 0;
                 entry.dest.physical.physical_dest = 0;
 
@@ -1659,11 +1729,13 @@ void disable_IO_APIC(void)
                  * Add it to the IO-APIC irq-routing table:
                  */
                 spin_lock_irqsave(&ioapic_lock, flags);
-                io_apic_write(0, 0x11+2*pin, *(((int *)&entry)+1));
-                io_apic_write(0, 0x10+2*pin, *(((int *)&entry)+0));
+                io_apic_write(ioapic_i8259.apic, 0x11+2*ioapic_i8259.pin,
+                        *(((int *)&entry)+1));
+                io_apic_write(ioapic_i8259.apic, 0x10+2*ioapic_i8259.pin,
+                        *(((int *)&entry)+0));
                 spin_unlock_irqrestore(&ioapic_lock, flags);
         }
-        disconnect_bsp_APIC(pin != -1);
+        disconnect_bsp_APIC(ioapic_i8259.pin != -1);
 }
 
 /*
@@ -2113,20 +2185,21 @@ static void setup_nmi (void)
  */
 static inline void unlock_ExtINT_logic(void)
 {
-        int pin, i;
+        int apic, pin, i;
         struct IO_APIC_route_entry entry0, entry1;
         unsigned char save_control, save_freq_select;
         unsigned long flags;
 
-        pin = find_isa_irq_pin(8, mp_INT);
+        pin  = find_isa_irq_pin(8, mp_INT);
+        apic = find_isa_irq_apic(8, mp_INT);
         if (pin == -1)
                 return;
 
         spin_lock_irqsave(&ioapic_lock, flags);
-        *(((int *)&entry0) + 1) = io_apic_read(0, 0x11 + 2 * pin);
-        *(((int *)&entry0) + 0) = io_apic_read(0, 0x10 + 2 * pin);
+        *(((int *)&entry0) + 1) = io_apic_read(apic, 0x11 + 2 * pin);
+        *(((int *)&entry0) + 0) = io_apic_read(apic, 0x10 + 2 * pin);
         spin_unlock_irqrestore(&ioapic_lock, flags);
-        clear_IO_APIC_pin(0, pin);
+        clear_IO_APIC_pin(apic, pin);
 
         memset(&entry1, 0, sizeof(entry1));
 
@@ -2139,8 +2212,8 @@ static inline void unlock_ExtINT_logic(void)
         entry1.vector = 0;
 
         spin_lock_irqsave(&ioapic_lock, flags);
-        io_apic_write(0, 0x11 + 2 * pin, *(((int *)&entry1) + 1));
-        io_apic_write(0, 0x10 + 2 * pin, *(((int *)&entry1) + 0));
+        io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry1) + 1));
+        io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry1) + 0));
         spin_unlock_irqrestore(&ioapic_lock, flags);
 
         save_control = CMOS_READ(RTC_CONTROL);
@@ -2158,11 +2231,11 @@ static inline void unlock_ExtINT_logic(void)
 
         CMOS_WRITE(save_control, RTC_CONTROL);
         CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-        clear_IO_APIC_pin(0, pin);
+        clear_IO_APIC_pin(apic, pin);
 
         spin_lock_irqsave(&ioapic_lock, flags);
-        io_apic_write(0, 0x11 + 2 * pin, *(((int *)&entry0) + 1));
-        io_apic_write(0, 0x10 + 2 * pin, *(((int *)&entry0) + 0));
+        io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry0) + 1));
+        io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry0) + 0));
         spin_unlock_irqrestore(&ioapic_lock, flags);
 }
 
@@ -2174,7 +2247,7 @@ static inline void unlock_ExtINT_logic(void)
  */
 static inline void check_timer(void)
 {
-        int pin1, pin2;
+        int apic1, pin1, apic2, pin2;
         int vector;
 
         /*
@@ -2196,10 +2269,13 @@ static inline void check_timer(void)
         timer_ack = 1;
         enable_8259A_irq(0);
 
-        pin1 = find_isa_irq_pin(0, mp_INT);
-        pin2 = find_isa_irq_pin(0, mp_ExtINT);
+        pin1  = find_isa_irq_pin(0, mp_INT);
+        apic1 = find_isa_irq_apic(0, mp_INT);
+        pin2  = ioapic_i8259.pin;
+        apic2 = ioapic_i8259.apic;
 
-        printk(KERN_INFO "..TIMER: vector=0x%02X pin1=%d pin2=%d\n", vector, pin1, pin2);
+        printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
+                vector, apic1, pin1, apic2, pin2);
 
         if (pin1 != -1) {
                 /*
@@ -2216,8 +2292,9 @@ static inline void check_timer(void)
                                 clear_IO_APIC_pin(0, pin1);
                         return;
                 }
-                clear_IO_APIC_pin(0, pin1);
-                printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to IO-APIC\n");
+                clear_IO_APIC_pin(apic1, pin1);
+                printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to "
+                                "IO-APIC\n");
         }
 
         printk(KERN_INFO "...trying to set up timer (IRQ0) through the 8259A ... ");
@@ -2226,13 +2303,13 @@ static inline void check_timer(void)
                 /*
                  * legacy devices should be connected to IO APIC #0
                  */
-                setup_ExtINT_IRQ0_pin(pin2, vector);
+                setup_ExtINT_IRQ0_pin(apic2, pin2, vector);
                 if (timer_irq_works()) {
                         printk("works.\n");
                         if (pin1 != -1)
-                                replace_pin_at_irq(0, 0, pin1, 0, pin2);
+                                replace_pin_at_irq(0, apic1, pin1, apic2, pin2);
                         else
-                                add_pin_to_irq(0, 0, pin2);
+                                add_pin_to_irq(0, apic2, pin2);
                         if (nmi_watchdog == NMI_IO_APIC) {
                                 setup_nmi();
                         }
@@ -2241,7 +2318,7 @@ static inline void check_timer(void)
                 /*
                  * Cleanup, just in case ...
                  */
-                clear_IO_APIC_pin(0, pin2);
+                clear_IO_APIC_pin(apic2, pin2);
         }
         printk(" failed.\n");
 
@@ -2310,11 +2387,15 @@ void __init setup_IO_APIC(void)
         sync_Arb_IDs();
         setup_IO_APIC_irqs();
         init_IO_APIC_traps();
-        check_timer();
         if (!acpi_ioapic)
                 print_IO_APIC();
 }
 
+void __init IO_APIC_late_time_init(void)
+{
+        check_timer();
+}
+
 /*
  *      Called after all the initialization is done. If we didnt find any
  *      APIC bugs then we can allow the modify fast path
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index ce66dcc26d90..1a201a932865 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -218,7 +218,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
         if (i == 0) {
                 seq_printf(p, "           ");
-                for_each_cpu(j)
+                for_each_online_cpu(j)
                         seq_printf(p, "CPU%d       ",j);
                 seq_putc(p, '\n');
         }
@@ -232,7 +232,7 @@ int show_interrupts(struct seq_file *p, void *v)
 #ifndef CONFIG_SMP
                 seq_printf(p, "%10u ", kstat_irqs(i));
 #else
-                for_each_cpu(j)
+                for_each_online_cpu(j)
                         seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
                 seq_printf(p, " %14s", irq_desc[i].handler->typename);
@@ -246,12 +246,12 @@ skip:
                 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
         } else if (i == NR_IRQS) {
                 seq_printf(p, "NMI: ");
-                for_each_cpu(j)
+                for_each_online_cpu(j)
                         seq_printf(p, "%10u ", nmi_count(j));
                 seq_putc(p, '\n');
 #ifdef CONFIG_X86_LOCAL_APIC
                 seq_printf(p, "LOC: ");
-                for_each_cpu(j)
+                for_each_online_cpu(j)
                         seq_printf(p, "%10u ",
                                 per_cpu(irq_stat,j).apic_timer_irqs);
                 seq_putc(p, '\n');
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 27aabfceb67e..8f767d9aa45d 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -69,7 +69,7 @@ unsigned int def_to_bigsmp = 0;
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_physical_apicid = -1U;
 /* Internal processor count */
-static unsigned int __initdata num_processors;
+static unsigned int __devinitdata num_processors;
 
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map;
@@ -119,7 +119,7 @@ static int MP_valid_apicid(int apicid, int version)
 }
 #endif
 
-static void __init MP_processor_info (struct mpc_config_processor *m)
+static void __devinit MP_processor_info (struct mpc_config_processor *m)
 {
         int ver, apicid;
         physid_mask_t phys_cpu;
@@ -182,17 +182,6 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
                 boot_cpu_physical_apicid = m->mpc_apicid;
         }
 
-        if (num_processors >= NR_CPUS) {
-                printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
-                        "  Processor ignored.\n", NR_CPUS); 
-                return;
-        }
-
-        if (num_processors >= maxcpus) {
-                printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
-                        " Processor ignored.\n", maxcpus); 
-                return;
-        }
         ver = m->mpc_apicver;
 
         if (!MP_valid_apicid(apicid, ver)) {
@@ -201,11 +190,6 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
                 return;
         }
 
-        cpu_set(num_processors, cpu_possible_map);
-        num_processors++;
-        phys_cpu = apicid_to_cpu_present(apicid);
-        physids_or(phys_cpu_present_map, phys_cpu_present_map, phys_cpu);
-
         /*
          * Validate version
          */
@@ -216,6 +200,25 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
                 ver = 0x10;
         }
         apic_version[m->mpc_apicid] = ver;
+
+        phys_cpu = apicid_to_cpu_present(apicid);
+        physids_or(phys_cpu_present_map, phys_cpu_present_map, phys_cpu);
+
+        if (num_processors >= NR_CPUS) {
+                printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
+                        "  Processor ignored.\n", NR_CPUS);
+                return;
+        }
+
+        if (num_processors >= maxcpus) {
+                printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
+                        " Processor ignored.\n", maxcpus);
+                return;
+        }
+
+        cpu_set(num_processors, cpu_possible_map);
+        num_processors++;
+
         if ((num_processors > 8) &&
             APIC_XAPIC(ver) &&
             (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL))
@@ -834,7 +837,7 @@ void __init mp_register_lapic_address (
 }
 
 
-void __init mp_register_lapic (
+void __devinit mp_register_lapic (
         u8                      id, 
         u8                      enabled)
 {
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 72515b8a1b12..d661703ac1cb 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -100,16 +100,44 @@ int nmi_active;
         (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT|     \
          P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE)
 
+#ifdef CONFIG_SMP
+/* The performance counters used by NMI_LOCAL_APIC don't trigger when
+ * the CPU is idle. To make sure the NMI watchdog really ticks on all
+ * CPUs during the test make them busy.
+ */
+static __init void nmi_cpu_busy(void *data)
+{
+        volatile int *endflag = data;
+        local_irq_enable();
+        /* Intentionally don't use cpu_relax here. This is
+           to make sure that the performance counter really ticks,
+           even if there is a simulator or similar that catches the
+           pause instruction. On a real HT machine this is fine because
+           all other CPUs are busy with "useless" delay loops and don't
+           care if they get somewhat less cycles. */
+        while (*endflag == 0)
+                barrier();
+}
+#endif
+
 static int __init check_nmi_watchdog(void)
 {
-        unsigned int prev_nmi_count[NR_CPUS];
+        volatile int endflag = 0;
+        unsigned int *prev_nmi_count;
         int cpu;
 
         if (nmi_watchdog == NMI_NONE)
                 return 0;
 
+        prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
+        if (!prev_nmi_count)
+                return -1;
+
         printk(KERN_INFO "Testing NMI watchdog ... ");
 
+        if (nmi_watchdog == NMI_LOCAL_APIC)
+                smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
+
         for (cpu = 0; cpu < NR_CPUS; cpu++)
                 prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count;
         local_irq_enable();
@@ -123,12 +151,18 @@ static int __init check_nmi_watchdog(void)
                         continue;
 #endif
                 if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) {
-                        printk("CPU#%d: NMI appears to be stuck!\n", cpu);
+                        endflag = 1;
+                        printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n",
+                                cpu,
+                                prev_nmi_count[cpu],
+                                nmi_count(cpu));
                         nmi_active = 0;
                         lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG;
+                        kfree(prev_nmi_count);
                         return -1;
                 }
         }
+        endflag = 1;
         printk("OK.\n");
 
         /* now that we know it works we can reduce NMI frequency to
@@ -136,6 +170,7 @@ static int __init check_nmi_watchdog(void)
         if (nmi_watchdog == NMI_LOCAL_APIC)
                 nmi_hz = 1;
 
+        kfree(prev_nmi_count);
         return 0;
 }
 /* This needs to happen later in boot so counters are working */
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 7b6368bf8974..efd11f09c996 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -354,7 +354,7 @@ ptrace_set_thread_area(struct task_struct *child,
         return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         struct user * dummy = NULL;
diff --git a/arch/i386/kernel/reboot_fixups.c b/arch/i386/kernel/reboot_fixups.c
index 1b183b378c2c..c9b87330aeea 100644
--- a/arch/i386/kernel/reboot_fixups.c
+++ b/arch/i386/kernel/reboot_fixups.c
@@ -44,7 +44,7 @@ void mach_reboot_fixups(void)
 
         for (i=0; i < (sizeof(fixups_table)/sizeof(fixups_table[0])); i++) {
                 cur = &(fixups_table[i]);
-                dev = pci_get_device(cur->vendor, cur->device, 0);
+                dev = pci_get_device(cur->vendor, cur->device, NULL);
                 if (!dev)
                         continue;
 
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 9b8c8a19824d..b48ac635f3c1 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -389,14 +389,24 @@ static void __init limit_regions(unsigned long long size)
                 }
         }
         for (i = 0; i < e820.nr_map; i++) {
-                if (e820.map[i].type == E820_RAM) {
-                        current_addr = e820.map[i].addr + e820.map[i].size;
-                        if (current_addr >= size) {
-                                e820.map[i].size -= current_addr-size;
-                                e820.nr_map = i + 1;
-                                return;
-                        }
+                current_addr = e820.map[i].addr + e820.map[i].size;
+                if (current_addr < size)
+                        continue;
+
+                if (e820.map[i].type != E820_RAM)
+                        continue;
+
+                if (e820.map[i].addr >= size) {
+                        /*
+                         * This region starts past the end of the
+                         * requested size, skip it completely.
+                         */
+                        e820.nr_map = i;
+                } else {
+                        e820.nr_map = i + 1;
+                        e820.map[i].size -= current_addr - size;
                 }
+                return;
         }
 }
 
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 1fb26d0e30b6..5a2bbe0c4fff 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -87,7 +87,11 @@ EXPORT_SYMBOL(cpu_online_map);
 cpumask_t cpu_callin_map;
 cpumask_t cpu_callout_map;
 EXPORT_SYMBOL(cpu_callout_map);
+#ifdef CONFIG_HOTPLUG_CPU
+cpumask_t cpu_possible_map = CPU_MASK_ALL;
+#else
 cpumask_t cpu_possible_map;
+#endif
 EXPORT_SYMBOL(cpu_possible_map);
 static cpumask_t smp_commenced_mask;
 
@@ -1074,6 +1078,16 @@ void *xquad_portio;
 EXPORT_SYMBOL(xquad_portio);
 #endif
 
+/*
+ * Fall back to non SMP mode after errors.
+ *
+ */
+static __init void disable_smp(void)
+{
+        cpu_set(0, cpu_sibling_map[0]);
+        cpu_set(0, cpu_core_map[0]);
+}
+
 static void __init smp_boot_cpus(unsigned int max_cpus)
 {
         int apicid, cpu, bit, kicked;
@@ -1086,7 +1100,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
         printk("CPU%d: ", 0);
         print_cpu_info(&cpu_data[0]);
 
-        boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
         boot_cpu_logical_apicid = logical_smp_processor_id();
         x86_cpu_to_apicid[0] = boot_cpu_physical_apicid;
 
@@ -1098,68 +1111,27 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
         cpus_clear(cpu_core_map[0]);
         cpu_set(0, cpu_core_map[0]);
 
+        map_cpu_to_logical_apicid();
+
         /*
          * If we couldn't find an SMP configuration at boot time,
          * get out of here now!
          */
         if (!smp_found_config && !acpi_lapic) {
                 printk(KERN_NOTICE "SMP motherboard not detected.\n");
-                smpboot_clear_io_apic_irqs();
-                phys_cpu_present_map = physid_mask_of_physid(0);
-                if (APIC_init_uniprocessor())
-                        printk(KERN_NOTICE "Local APIC not detected."
-                                           " Using dummy APIC emulation.\n");
-                map_cpu_to_logical_apicid();
-                cpu_set(0, cpu_sibling_map[0]);
-                cpu_set(0, cpu_core_map[0]);
+                disable_smp();
                 return;
         }
 
         /*
-         * Should not be necessary because the MP table should list the boot
-         * CPU too, but we do it for the sake of robustness anyway.
-         * Makes no sense to do this check in clustered apic mode, so skip it
-         */
-        if (!check_phys_apicid_present(boot_cpu_physical_apicid)) {
-                printk("weird, boot CPU (#%d) not listed by the BIOS.\n",
-                                boot_cpu_physical_apicid);
-                physid_set(hard_smp_processor_id(), phys_cpu_present_map);
-        }
-
-        /*
-         * If we couldn't find a local APIC, then get out of here now!
-         */
-        if (APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid]) && !cpu_has_apic) {
-                printk(KERN_ERR "BIOS bug, local APIC #%d not detected!...\n",
-                        boot_cpu_physical_apicid);
-                printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n");
-                smpboot_clear_io_apic_irqs();
-                phys_cpu_present_map = physid_mask_of_physid(0);
-                cpu_set(0, cpu_sibling_map[0]);
-                cpu_set(0, cpu_core_map[0]);
-                return;
-        }
-
-        verify_local_APIC();
-
-        /*
          * If SMP should be disabled, then really disable it!
          */
-        if (!max_cpus) {
-                smp_found_config = 0;
-                printk(KERN_INFO "SMP mode deactivated, forcing use of dummy APIC emulation.\n");
-                smpboot_clear_io_apic_irqs();
-                phys_cpu_present_map = physid_mask_of_physid(0);
-                cpu_set(0, cpu_sibling_map[0]);
-                cpu_set(0, cpu_core_map[0]);
+        if (!max_cpus || (enable_local_apic < 0)) {
+                printk(KERN_INFO "SMP mode deactivated.\n");
+                disable_smp();
                 return;
         }
 
-        connect_bsp_APIC();
-        setup_local_APIC();
-        map_cpu_to_logical_apicid();
-
-
         setup_portio_remap();
 
         /*
@@ -1240,10 +1212,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
         cpu_set(0, cpu_sibling_map[0]);
         cpu_set(0, cpu_core_map[0]);
 
-        smpboot_setup_io_apic();
-
-        setup_boot_APIC_clock();
-
         /*
          * Synchronize the TSC with the AP
          */
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c
index 516bf5653b02..8de658db8146 100644
--- a/arch/i386/kernel/srat.c
+++ b/arch/i386/kernel/srat.c
@@ -327,7 +327,12 @@ int __init get_memcfg_from_srat(void)
         int tables = 0;
         int i = 0;
 
-        acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING, rsdp_address);
+        if (ACPI_FAILURE(acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING,
+                                                rsdp_address))) {
+                printk("%s: System description tables not found\n",
+                       __FUNCTION__);
+                goto out_err;
+        }
 
         if (rsdp_address->pointer_type == ACPI_PHYSICAL_POINTER) {
                 printk("%s: assigning address to rsdp\n", __FUNCTION__);
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index 2883a4d4f01f..07471bba2dc6 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -74,10 +74,6 @@ int pit_latch_buggy;              /* extern */
 
 #include "do_timer.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned int cpu_khz;   /* Detected as we calibrate the TSC */
 EXPORT_SYMBOL(cpu_khz);
 
@@ -444,8 +440,8 @@ static int time_init_device(void)
 
 device_initcall(time_init_device);
 
-#ifdef CONFIG_HPET_TIMER
 extern void (*late_time_init)(void);
+#ifdef CONFIG_HPET_TIMER
 /* Duplicate of time_init() below, with hpet_enable part added */
 static void __init hpet_time_init(void)
 {
@@ -462,6 +458,11 @@ static void __init hpet_time_init(void)
         printk(KERN_INFO "Using %s for high-res timesource\n",cur_timer->name);
 
         time_init_hook();
+
+#ifdef CONFIG_X86_LOCAL_APIC
+        if (enable_local_apic >= 0)
+                APIC_late_time_init();
+#endif
 }
 #endif
 
@@ -486,4 +487,9 @@ void __init time_init(void)
         printk(KERN_INFO "Using %s for high-res timesource\n",cur_timer->name);
 
         time_init_hook();
+
+#ifdef CONFIG_X86_LOCAL_APIC
+        if (enable_local_apic >= 0)
+                late_time_init = APIC_late_time_init;
+#endif
 }
diff --git a/arch/i386/kernel/time_hpet.c b/arch/i386/kernel/time_hpet.c
index 658c0629ba6a..9caeaa315cd7 100644
--- a/arch/i386/kernel/time_hpet.c
+++ b/arch/i386/kernel/time_hpet.c
@@ -275,6 +275,7 @@ static unsigned long PIE_freq = DEFAULT_RTC_INT_FREQ;
 static unsigned long PIE_count;
 
 static unsigned long hpet_rtc_int_freq; /* RTC interrupt frequency */
+static unsigned int hpet_t1_cmp; /* cached comparator register */
 
 /*
  * Timer 1 for RTC, we do not use periodic interrupt feature,
@@ -306,10 +307,12 @@ int hpet_rtc_timer_init(void)
         cnt = hpet_readl(HPET_COUNTER);
         cnt += ((hpet_tick*HZ)/hpet_rtc_int_freq);
         hpet_writel(cnt, HPET_T1_CMP);
+        hpet_t1_cmp = cnt;
         local_irq_restore(flags);
 
         cfg = hpet_readl(HPET_T1_CFG);
-        cfg |= HPET_TN_ENABLE | HPET_TN_SETVAL | HPET_TN_32BIT;
+        cfg &= ~HPET_TN_PERIODIC;
+        cfg |= HPET_TN_ENABLE | HPET_TN_32BIT;
         hpet_writel(cfg, HPET_T1_CFG);
 
         return 1;
@@ -319,8 +322,12 @@ static void hpet_rtc_timer_reinit(void)
 {
         unsigned int cfg, cnt;
 
-        if (!(PIE_on | AIE_on | UIE_on))
+        if (unlikely(!(PIE_on | AIE_on | UIE_on))) {
+                cfg = hpet_readl(HPET_T1_CFG);
+                cfg &= ~HPET_TN_ENABLE;
+                hpet_writel(cfg, HPET_T1_CFG);
                 return;
+        }
 
         if (PIE_on && (PIE_freq > DEFAULT_RTC_INT_FREQ))
                 hpet_rtc_int_freq = PIE_freq;
@@ -328,15 +335,10 @@ static void hpet_rtc_timer_reinit(void)
                 hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ;
 
         /* It is more accurate to use the comparator value than current count.*/
-        cnt = hpet_readl(HPET_T1_CMP);
+        cnt = hpet_t1_cmp;
         cnt += hpet_tick*HZ/hpet_rtc_int_freq;
         hpet_writel(cnt, HPET_T1_CMP);
-
-        cfg = hpet_readl(HPET_T1_CFG);
-        cfg |= HPET_TN_ENABLE | HPET_TN_SETVAL | HPET_TN_32BIT;
-        hpet_writel(cfg, HPET_T1_CFG);
-
-        return;
+        hpet_t1_cmp = cnt;
 }
 
 /*
diff --git a/arch/i386/kernel/timers/timer_hpet.c b/arch/i386/kernel/timers/timer_hpet.c
index d973a8b681fd..be242723c339 100644
--- a/arch/i386/kernel/timers/timer_hpet.c
+++ b/arch/i386/kernel/timers/timer_hpet.c
@@ -30,23 +30,28 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED;
  *  basic equation:
  *              ns = cycles / (freq / ns_per_sec)
  *              ns = cycles * (ns_per_sec / freq)
- *              ns = cycles * (10^9 / (cpu_mhz * 10^6))
- *              ns = cycles * (10^3 / cpu_mhz)
+ *              ns = cycles * (10^9 / (cpu_khz * 10^3))
+ *              ns = cycles * (10^6 / cpu_khz)
  *
  *      Then we use scaling math (suggested by george@mvista.com) to get:
- *              ns = cycles * (10^3 * SC / cpu_mhz) / SC
+ *              ns = cycles * (10^6 * SC / cpu_khz) / SC
  *              ns = cycles * cyc2ns_scale / SC
  *
  *      And since SC is a constant power of two, we can convert the div
  *  into a shift.
+ *
+ *  We can use khz divisor instead of mhz to keep a better percision, since
+ *  cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
+ *  (mathieu.desnoyers@polymtl.ca)
+ *
  *                      -johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
 static unsigned long cyc2ns_scale;
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
-static inline void set_cyc2ns_scale(unsigned long cpu_mhz)
+static inline void set_cyc2ns_scale(unsigned long cpu_khz)
 {
-        cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz;
+        cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz;
 }
 
 static inline unsigned long long cycles_2_ns(unsigned long long cyc)
@@ -163,7 +168,7 @@ static int __init init_hpet(char* override)
                                 printk("Detected %u.%03u MHz processor.\n",
                                         cpu_khz / 1000, cpu_khz % 1000);
                         }
-                        set_cyc2ns_scale(cpu_khz/1000);
+                        set_cyc2ns_scale(cpu_khz);
                 }
                 /* set this only when cpu_has_tsc */
                 timer_hpet.read_timer = read_timer_tsc;
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c
index 6dd470cc9f72..d395e3b42485 100644
--- a/arch/i386/kernel/timers/timer_tsc.c
+++ b/arch/i386/kernel/timers/timer_tsc.c
@@ -49,23 +49,28 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED;
  *  basic equation:
  *              ns = cycles / (freq / ns_per_sec)
  *              ns = cycles * (ns_per_sec / freq)
- *              ns = cycles * (10^9 / (cpu_mhz * 10^6))
- *              ns = cycles * (10^3 / cpu_mhz)
+ *              ns = cycles * (10^9 / (cpu_khz * 10^3))
+ *              ns = cycles * (10^6 / cpu_khz)
  *
  *      Then we use scaling math (suggested by george@mvista.com) to get:
- *              ns = cycles * (10^3 * SC / cpu_mhz) / SC
+ *              ns = cycles * (10^6 * SC / cpu_khz) / SC
  *              ns = cycles * cyc2ns_scale / SC
  *
  *      And since SC is a constant power of two, we can convert the div
- *  into a shift.   
+ *  into a shift.
+ *
+ *  We can use khz divisor instead of mhz to keep a better percision, since
+ *  cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
+ *  (mathieu.desnoyers@polymtl.ca)
+ *
  *                      -johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
 static unsigned long cyc2ns_scale; 
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
-static inline void set_cyc2ns_scale(unsigned long cpu_mhz)
+static inline void set_cyc2ns_scale(unsigned long cpu_khz)
 {
-        cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz;
+        cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz;
 }
 
 static inline unsigned long long cycles_2_ns(unsigned long long cyc)
@@ -286,7 +291,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
                 if (use_tsc) {
                         if (!(freq->flags & CPUFREQ_CONST_LOOPS)) {
                                 fast_gettimeoffset_quotient = cpufreq_scale(fast_gettimeoffset_ref, freq->new, ref_freq);
-                                set_cyc2ns_scale(cpu_khz/1000);
+                                set_cyc2ns_scale(cpu_khz);
                         }
                 }
 #endif
@@ -536,7 +541,7 @@ static int __init init_tsc(char* override)
                                 printk("Detected %u.%03u MHz processor.\n",
                                         cpu_khz / 1000, cpu_khz % 1000);
                         }
-                        set_cyc2ns_scale(cpu_khz/1000);
+                        set_cyc2ns_scale(cpu_khz);
                         return 0;
                 }
         }
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 19e90bdd84ea..c34d1bfc5161 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -488,6 +488,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
                                 tss->io_bitmap_max - thread->io_bitmap_max);
                 tss->io_bitmap_max = thread->io_bitmap_max;
                 tss->io_bitmap_base = IO_BITMAP_OFFSET;
+                tss->io_bitmap_owner = thread;
                 put_cpu();
                 return;
         }
diff --git a/arch/i386/mach-es7000/es7000.h b/arch/i386/mach-es7000/es7000.h
index 898ed905e119..f1e3204f5dec 100644
--- a/arch/i386/mach-es7000/es7000.h
+++ b/arch/i386/mach-es7000/es7000.h
@@ -24,6 +24,15 @@
  * http://www.unisys.com
  */
 
+/*
+ * ES7000 chipsets
+ */
+
+#define NON_UNISYS              0
+#define ES7000_CLASSIC          1
+#define ES7000_ZORRO            2
+
+
 #define MIP_REG                 1
 #define MIP_PSAI_REG            4
 
@@ -106,6 +115,6 @@ struct mip_reg {
 
 extern int parse_unisys_oem (char *oemptr);
 extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
-extern void setup_unisys ();
+extern void setup_unisys(void);
 extern int es7000_start_cpu(int cpu, unsigned long eip);
 extern void es7000_sw_apic(void);
diff --git a/arch/i386/mach-es7000/es7000plat.c b/arch/i386/mach-es7000/es7000plat.c
index dc6660511b07..a9ab0644f403 100644
--- a/arch/i386/mach-es7000/es7000plat.c
+++ b/arch/i386/mach-es7000/es7000plat.c
@@ -62,6 +62,9 @@ static unsigned int base;
 static int
 es7000_rename_gsi(int ioapic, int gsi)
 {
+        if (es7000_plat == ES7000_ZORRO)
+                return gsi;
+
         if (!base) {
                 int i;
                 for (i = 0; i < nr_ioapics; i++)
@@ -76,7 +79,7 @@ es7000_rename_gsi(int ioapic, int gsi)
 #endif  /* (CONFIG_X86_IO_APIC) && (CONFIG_ACPI) */
 
 void __init
-setup_unisys ()
+setup_unisys(void)
 {
         /*
          * Determine the generation of the ES7000 currently running.
@@ -86,9 +89,9 @@ setup_unisys ()
          *
          */
         if (!(boot_cpu_data.x86 <= 15 && boot_cpu_data.x86_model <= 2))
-                es7000_plat = 2;
+                es7000_plat = ES7000_ZORRO;
         else
-                es7000_plat = 1;
+                es7000_plat = ES7000_CLASSIC;
         ioapic_renumber_irq = es7000_rename_gsi;
 }
 
@@ -151,7 +154,7 @@ parse_unisys_oem (char *oemptr)
         }
 
         if (success < 2) {
-                es7000_plat = 0;
+                es7000_plat = NON_UNISYS;
         } else
                 setup_unisys();
         return es7000_plat;
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index 9edd4485b91e..cf572d9a3b6e 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -108,7 +108,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
                 desc = (void *)desc + (seg & ~7);
         } else {
                 /* Must disable preemption while reading the GDT. */
-                desc = (u32 *)&per_cpu(cpu_gdt_table, get_cpu());
+                desc = (u32 *)get_cpu_gdt_table(get_cpu());
                 desc = (void *)desc + (seg & ~7);
         }
 
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index cddafe33ff7c..19e6f4871d1e 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -547,31 +547,48 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
         return 0;
 }
 
-static __init int via_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
+static __init int via_router_probe(struct irq_router *r,
+                                struct pci_dev *router, u16 device)
 {
         /* FIXME: We should move some of the quirk fixup stuff here */
 
-        if (router->device == PCI_DEVICE_ID_VIA_82C686 &&
-                        device == PCI_DEVICE_ID_VIA_82C586_0) {
-                /* Asus k7m bios wrongly reports 82C686A as 586-compatible */
-                device = PCI_DEVICE_ID_VIA_82C686;
+        /*
+         * work arounds for some buggy BIOSes
+         */
+        if (device == PCI_DEVICE_ID_VIA_82C586_0) {
+                switch(router->device) {
+                case PCI_DEVICE_ID_VIA_82C686:
+                        /*
+                         * Asus k7m bios wrongly reports 82C686A
+                         * as 586-compatible
+                         */
+                        device = PCI_DEVICE_ID_VIA_82C686;
+                        break;
+                case PCI_DEVICE_ID_VIA_8235:
+                        /**
+                         * Asus a7v-x bios wrongly reports 8235
+                         * as 586-compatible
+                         */
+                        device = PCI_DEVICE_ID_VIA_8235;
+                        break;
+                }
         }
 
-        switch(device)
-        {
-                case PCI_DEVICE_ID_VIA_82C586_0:
-                        r->name = "VIA";
-                        r->get = pirq_via586_get;
-                        r->set = pirq_via586_set;
-                        return 1;
-                case PCI_DEVICE_ID_VIA_82C596:
-                case PCI_DEVICE_ID_VIA_82C686:
-                case PCI_DEVICE_ID_VIA_8231:
+        switch(device) {
+        case PCI_DEVICE_ID_VIA_82C586_0:
+                r->name = "VIA";
+                r->get = pirq_via586_get;
+                r->set = pirq_via586_set;
+                return 1;
+        case PCI_DEVICE_ID_VIA_82C596:
+        case PCI_DEVICE_ID_VIA_82C686:
+        case PCI_DEVICE_ID_VIA_8231:
+        case PCI_DEVICE_ID_VIA_8235:
                 /* FIXME: add new ones for 8233/5 */
-                        r->name = "VIA";
-                        r->get = pirq_via_get;
-                        r->set = pirq_via_set;
-                        return 1;
+                r->name = "VIA";
+                r->get = pirq_via_get;
+                r->set = pirq_via_set;
+                return 1;
         }
         return 0;
 }
diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c
index b27c5acc79d0..1f1572692e0b 100644
--- a/arch/i386/power/cpu.c
+++ b/arch/i386/power/cpu.c
@@ -51,16 +51,14 @@ void save_processor_state(void)
         __save_processor_state(&saved_context);
 }
 
-static void
-do_fpu_end(void)
+static void do_fpu_end(void)
 {
-        /* restore FPU regs if necessary */
-        /* Do it out of line so that gcc does not move cr0 load to some stupid place */
-        kernel_fpu_end();
-        mxcsr_feature_mask_init();
+        /*
+         * Restore FPU regs if necessary.
+         */
+        kernel_fpu_end();
 }
 
-
 static void fix_processor_context(void)
 {
         int cpu = smp_processor_id();
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 3fa67ecebc83..dc282710421a 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -36,6 +36,7 @@
 #include <linux/uio.h>
 #include <linux/nfs_fs.h>
 #include <linux/quota.h>
+#include <linux/syscalls.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/cache.h>
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index 768c7e46957c..6ade3790ce07 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -2,6 +2,7 @@
 #include <linux/smp.h>
 #include <linux/time.h>
 #include <linux/errno.h>
+#include <linux/timex.h>
 #include <asm/io.h>
 
 /* IBM Summit (EXA) Cyclone counter code*/
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 8b8a5a45b621..5b7e736f3b49 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -32,10 +32,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #define TIME_KEEPER_ID  0       /* smp_processor_id() of time-keeper */
 
 #ifdef CONFIG_IA64_DEBUG_IRQ
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index 85920fb8d08c..396c94218cc2 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -653,8 +653,6 @@ ENTRY(rie_handler)
         SAVE_ALL
         mvfc    r0, bpc
         ld      r1, @r0
-        seth    r0, #0xa0f0
-        st      r1, @r0
         ldi     r1, #0x20                       ; error_code
         mv      r0, sp                          ; pt_regs
         bl      do_rie_handler
diff --git a/arch/m32r/kernel/io_m32700ut.c b/arch/m32r/kernel/io_m32700ut.c
index e545b065f7e9..eda9f963c1eb 100644
--- a/arch/m32r/kernel/io_m32700ut.c
+++ b/arch/m32r/kernel/io_m32700ut.c
@@ -64,11 +64,11 @@ static inline void *__port2addr_ata(unsigned long port)
  * from 0x10000000 to 0x13ffffff on physical address.
  * The base address of LAN controller(LAN91C111) is 0x300.
  */
-#define LAN_IOSTART     0x300
-#define LAN_IOEND       0x320
+#define LAN_IOSTART     0xa0000300
+#define LAN_IOEND       0xa0000320
 static inline void *_port2addr_ne(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+        return (void *)(port + 0x10000000);
 }
 static inline void *_port2addr_usb(unsigned long port)
 {
diff --git a/arch/m32r/kernel/io_mappi.c b/arch/m32r/kernel/io_mappi.c
index 78033165fb5c..3c3da042fbd1 100644
--- a/arch/m32r/kernel/io_mappi.c
+++ b/arch/m32r/kernel/io_mappi.c
@@ -31,7 +31,7 @@ extern void pcc_iowrite(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET);
+        return (void *)(port | (NONCACHE_OFFSET));
 }
 
 static inline void *_port2addr_ne(unsigned long port)
diff --git a/arch/m32r/kernel/io_mappi2.c b/arch/m32r/kernel/io_mappi2.c
index 5c03504bf653..df3c729cb3e0 100644
--- a/arch/m32r/kernel/io_mappi2.c
+++ b/arch/m32r/kernel/io_mappi2.c
@@ -33,12 +33,9 @@ extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET);
+        return (void *)(port | (NONCACHE_OFFSET));
 }
 
-#define LAN_IOSTART     0x300
-#define LAN_IOEND       0x320
-
 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 static inline void *__port2addr_ata(unsigned long port)
 {
@@ -59,15 +56,17 @@ static inline void *__port2addr_ata(unsigned long port)
 }
 #endif
 
+#define LAN_IOSTART     0xa0000300
+#define LAN_IOEND       0xa0000320
 #ifdef CONFIG_CHIP_OPSP
 static inline void *_port2addr_ne(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+        return (void *)(port + 0x10000000);
 }
 #else
 static inline void *_port2addr_ne(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET + 0x04000000);
+        return (void *)(port + 0x04000000);
 }
 #endif
 static inline void *_port2addr_usb(unsigned long port)
diff --git a/arch/m32r/kernel/io_mappi3.c b/arch/m32r/kernel/io_mappi3.c
index c80bde657854..6716ffea769a 100644
--- a/arch/m32r/kernel/io_mappi3.c
+++ b/arch/m32r/kernel/io_mappi3.c
@@ -36,9 +36,6 @@ static inline void *_port2addr(unsigned long port)
         return (void *)(port + NONCACHE_OFFSET);
 }
 
-#define LAN_IOSTART     0x300
-#define LAN_IOEND       0x320
-
 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 static inline void *__port2addr_ata(unsigned long port)
 {
@@ -59,9 +56,11 @@ static inline void *__port2addr_ata(unsigned long port)
 }
 #endif
 
+#define LAN_IOSTART     0xa0000300
+#define LAN_IOEND       0xa0000320
 static inline void *_port2addr_ne(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+        return (void *)(port + 0x10000000);
 }
 
 static inline void *_port2addr_usb(unsigned long port)
diff --git a/arch/m32r/kernel/io_oaks32r.c b/arch/m32r/kernel/io_oaks32r.c
index 9997dddd24d7..8be323931e4a 100644
--- a/arch/m32r/kernel/io_oaks32r.c
+++ b/arch/m32r/kernel/io_oaks32r.c
@@ -16,7 +16,7 @@
 
 static inline void *_port2addr(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET);
+        return (void *)(port | (NONCACHE_OFFSET));
 }
 
 static inline  void *_port2addr_ne(unsigned long port)
diff --git a/arch/m32r/kernel/io_opsput.c b/arch/m32r/kernel/io_opsput.c
index e34951e8156f..4793bd18e115 100644
--- a/arch/m32r/kernel/io_opsput.c
+++ b/arch/m32r/kernel/io_opsput.c
@@ -36,7 +36,7 @@ extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET);
+        return (void *)(port | (NONCACHE_OFFSET));
 }
 
 /*
@@ -44,11 +44,11 @@ static inline void *_port2addr(unsigned long port)
  * from 0x10000000 to 0x13ffffff on physical address.
  * The base address of LAN controller(LAN91C111) is 0x300.
  */
-#define LAN_IOSTART     0x300
-#define LAN_IOEND       0x320
+#define LAN_IOSTART     0xa0000300
+#define LAN_IOEND       0xa0000320
 static inline void *_port2addr_ne(unsigned long port)
 {
-        return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+        return (void *)(port + 0x10000000);
 }
 static inline void *_port2addr_usb(unsigned long port)
 {
diff --git a/arch/m32r/kernel/io_usrv.c b/arch/m32r/kernel/io_usrv.c
index 9eb161dcc104..39a379af40bc 100644
--- a/arch/m32r/kernel/io_usrv.c
+++ b/arch/m32r/kernel/io_usrv.c
@@ -47,7 +47,7 @@ static inline void *_port2addr(unsigned long port)
         else if (port >= UART1_IOSTART && port <= UART1_IOEND)
                 port = ((port - UART1_IOSTART) << 1) + UART1_REGSTART;
 #endif  /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
-        return (void *)(port + NONCACHE_OFFSET);
+        return (void *)(port | (NONCACHE_OFFSET));
 }
 
 static inline void delay(void)
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 124f7c1b775e..078d2a0e71c2 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -756,7 +756,7 @@ do_ptrace(long request, struct task_struct *child, long addr, long data)
         return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret;
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index ec5674727e7f..f722ec8eb021 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -305,19 +305,19 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
         seq_printf(m, "processor\t: %ld\n", cpu);
 
-#ifdef CONFIG_CHIP_VDEC2
+#if defined(CONFIG_CHIP_VDEC2)
         seq_printf(m, "cpu family\t: VDEC2\n"
                 "cache size\t: Unknown\n");
-#elif  CONFIG_CHIP_M32700
+#elif defined(CONFIG_CHIP_M32700)
         seq_printf(m,"cpu family\t: M32700\n"
                 "cache size\t: I-8KB/D-8KB\n");
-#elif  CONFIG_CHIP_M32102
+#elif defined(CONFIG_CHIP_M32102)
         seq_printf(m,"cpu family\t: M32102\n"
                 "cache size\t: I-8KB\n");
-#elif  CONFIG_CHIP_OPSP
+#elif defined(CONFIG_CHIP_OPSP)
         seq_printf(m,"cpu family\t: OPSP\n"
                 "cache size\t: I-8KB/D-8KB\n");
-#elif  CONFIG_CHIP_MP
+#elif defined(CONFIG_CHIP_MP)
         seq_printf(m, "cpu family\t: M32R-MP\n"
                 "cache size\t: I-xxKB/D-xxKB\n");
 #else
@@ -326,19 +326,19 @@ static int show_cpuinfo(struct seq_file *m, void *v)
         seq_printf(m, "bogomips\t: %lu.%02lu\n",
                 c->loops_per_jiffy/(500000/HZ),
                 (c->loops_per_jiffy/(5000/HZ)) % 100);
-#ifdef CONFIG_PLAT_MAPPI
+#if defined(CONFIG_PLAT_MAPPI)
         seq_printf(m, "Machine\t\t: Mappi Evaluation board\n");
-#elif CONFIG_PLAT_MAPPI2
+#elif defined(CONFIG_PLAT_MAPPI2)
         seq_printf(m, "Machine\t\t: Mappi-II Evaluation board\n");
-#elif CONFIG_PLAT_MAPPI3
+#elif defined(CONFIG_PLAT_MAPPI3)
         seq_printf(m, "Machine\t\t: Mappi-III Evaluation board\n");
-#elif  CONFIG_PLAT_M32700UT
+#elif defined(CONFIG_PLAT_M32700UT)
         seq_printf(m, "Machine\t\t: M32700UT Evaluation board\n");
-#elif  CONFIG_PLAT_OPSPUT
+#elif defined(CONFIG_PLAT_OPSPUT)
         seq_printf(m, "Machine\t\t: OPSPUT Evaluation board\n");
-#elif  CONFIG_PLAT_USRV
+#elif defined(CONFIG_PLAT_USRV)
         seq_printf(m, "Machine\t\t: uServer\n");
-#elif  CONFIG_PLAT_OAKS32R
+#elif defined(CONFIG_PLAT_OAKS32R)
         seq_printf(m, "Machine\t\t: OAKS32R\n");
 #else
         seq_printf(m, "Machine\t\t: Unknown\n");
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 539c562cd54d..2ebce2063fea 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -39,10 +39,6 @@ extern void send_IPI_allbutself(int, int);
 extern void smp_local_timer_interrupt(struct pt_regs *);
 #endif
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 #define TICK_SIZE       (tick_nsec / 1000)
 
diff --git a/arch/m32r/lib/csum_partial_copy.c b/arch/m32r/lib/csum_partial_copy.c
index ddb16a83a8ce..3d5f06145854 100644
--- a/arch/m32r/lib/csum_partial_copy.c
+++ b/arch/m32r/lib/csum_partial_copy.c
@@ -18,10 +18,10 @@
 
 #include <linux/module.h>
 #include <linux/types.h>
+#include <linux/string.h>
 
 #include <net/checksum.h>
 #include <asm/byteorder.h>
-#include <asm/string.h>
 #include <asm/uaccess.h>
 
 /*
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 8ed1b01a6a87..f7f1d2e5b90b 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -121,7 +121,7 @@ void ptrace_disable(struct task_struct *child)
         child->thread.work.syscall_trace = 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         unsigned long tmp;
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 4ec95e3cb874..98e4b1adfa29 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -27,10 +27,6 @@
 #include <linux/timex.h>
 #include <linux/profile.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 static inline int set_rtc_mmss(unsigned long nowtime)
 {
   if (mach_set_clock_mmss)
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 9724e1cd82e5..621d7b91ccfe 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -101,7 +101,7 @@ void ptrace_disable(struct task_struct *child)
         put_reg(child, PT_SR, tmp);
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret;
diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c
index b17c1ecba966..b9d8abb45430 100644
--- a/arch/m68knommu/kernel/time.c
+++ b/arch/m68knommu/kernel/time.c
@@ -27,10 +27,6 @@
 
 #define TICK_SIZE (tick_nsec / 1000)
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 
 
diff --git a/arch/mips/kernel/irixelf.c b/arch/mips/kernel/irixelf.c
index 7ce34d4aa220..10d3644e3608 100644
--- a/arch/mips/kernel/irixelf.c
+++ b/arch/mips/kernel/irixelf.c
@@ -1077,8 +1077,8 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
         struct elfhdr elf;
         off_t offset = 0, dataoff;
         int limit = current->signal->rlim[RLIMIT_CORE].rlim_cur;
-        int numnote = 4;
-        struct memelfnote notes[4];
+        int numnote = 3;
+        struct memelfnote notes[3];
         struct elf_prstatus prstatus;   /* NT_PRSTATUS */
         elf_fpregset_t fpu;             /* NT_PRFPREG */
         struct elf_prpsinfo psinfo;     /* NT_PRPSINFO */
@@ -1211,20 +1211,15 @@ static int irix_core_dump(long signr, struct pt_regs * regs, struct file *file)
         }
         strlcpy(psinfo.pr_fname, current->comm, sizeof(psinfo.pr_fname));
 
-        notes[2].name = "CORE";
-        notes[2].type = NT_TASKSTRUCT;
-        notes[2].datasz = sizeof(*current);
-        notes[2].data = current;
-
         /* Try to dump the FPU. */
         prstatus.pr_fpvalid = dump_fpu (regs, &fpu);
         if (!prstatus.pr_fpvalid) {
                 numnote--;
         } else {
-                notes[3].name = "CORE";
-                notes[3].type = NT_PRFPREG;
-                notes[3].datasz = sizeof(fpu);
-                notes[3].data = &fpu;
+                notes[2].name = "CORE";
+                notes[2].type = NT_PRFPREG;
+                notes[2].datasz = sizeof(fpu);
+                notes[2].data = &fpu;
         }
 
         /* Write notes phdr entry. */
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index fcceab8f2e00..f1b0f3e1f95b 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -174,7 +174,7 @@ int ptrace_setfpregs (struct task_struct *child, __u32 __user *data)
         return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret;
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index a24651dfaaba..787ed541d442 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -45,10 +45,6 @@
 
 #define TICK_SIZE       (tick_nsec / 1000)
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * forward reference
  */
diff --git a/arch/mips/sgi-ip27/ip27-berr.c b/arch/mips/sgi-ip27/ip27-berr.c
index e1829a5d3b19..07631a97670b 100644
--- a/arch/mips/sgi-ip27/ip27-berr.c
+++ b/arch/mips/sgi-ip27/ip27-berr.c
@@ -10,6 +10,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/signal.h>       /* for SIGBUS */
 
 #include <asm/module.h>
 #include <asm/sn/addrs.h>
diff --git a/arch/parisc/kernel/ioctl32.c b/arch/parisc/kernel/ioctl32.c
index 8cad8f004f00..0a331104ad56 100644
--- a/arch/parisc/kernel/ioctl32.c
+++ b/arch/parisc/kernel/ioctl32.c
@@ -561,11 +561,6 @@ IOCTL_TABLE_START
 #define DECLARES
 #include "compat_ioctl.c"
 
-/* Might be moved to compat_ioctl.h with some ifdefs... */
-COMPATIBLE_IOCTL(TIOCSTART)
-COMPATIBLE_IOCTL(TIOCSTOP)
-COMPATIBLE_IOCTL(TIOCSLTC)
-
 /* PA-specific ioctls */
 COMPATIBLE_IOCTL(PA_PERF_ON)
 COMPATIBLE_IOCTL(PA_PERF_OFF)
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index f3428e5e86fb..18130c3748f3 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -78,7 +78,7 @@ void ptrace_disable(struct task_struct *child)
         pa_psw(child)->l = 0;
 }
 
-long sys_ptrace(long request, pid_t pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         long ret;
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index bc979e1abdec..cded25680787 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -33,10 +33,6 @@
 
 #include <linux/timex.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /* xtime and wall_jiffies keep wall-clock time */
 extern unsigned long wall_jiffies;
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
new file mode 100644
index 000000000000..967ecf92d6a7
--- /dev/null
+++ b/arch/powerpc/Kconfig
@@ -0,0 +1,900 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+mainmenu "Linux/PowerPC Kernel Configuration"
+
+config PPC64
+        bool "64-bit kernel"
+        default n
+        help
+          This option selects whether a 32-bit or a 64-bit kernel
+          will be built.
+
+config PPC32
+        bool
+        default y if !PPC64
+
+config 64BIT
+        bool
+        default y if PPC64
+
+config PPC_MERGE
+        def_bool y
+
+config MMU
+        bool
+        default y
+
+config UID16
+        bool
+
+config GENERIC_HARDIRQS
+        bool
+        default y
+
+config RWSEM_GENERIC_SPINLOCK
+        bool
+
+config RWSEM_XCHGADD_ALGORITHM
+        bool
+        default y
+
+config GENERIC_CALIBRATE_DELAY
+        bool
+        default y
+
+config PPC
+        bool
+        default y
+
+config EARLY_PRINTK
+        bool
+        default y if PPC64
+
+config COMPAT
+        bool
+        default y if PPC64
+
+config SYSVIPC_COMPAT
+        bool
+        depends on COMPAT && SYSVIPC
+        default y
+
+# All PPC32s use generic nvram driver through ppc_md
+config GENERIC_NVRAM
+        bool
+        default y if PPC32
+
+config SCHED_NO_NO_OMIT_FRAME_POINTER
+        bool
+        default y
+
+config ARCH_MAY_HAVE_PC_FDC
+        bool
+        default y
+
+menu "Processor support"
+choice
+        prompt "Processor Type"
+        depends on PPC32
+        default 6xx
+
+config 6xx
+        bool "6xx/7xx/74xx"
+        select PPC_FPU
+        help
+          There are four families of PowerPC chips supported.  The more common
+          types (601, 603, 604, 740, 750, 7400), the Motorola embedded
+          versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
+          embedded versions (403 and 405) and the high end 64 bit Power
+          processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
+          
+          Unless you are building a kernel for one of the embedded processor
+          systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
+          Note that the kernel runs in 32-bit mode even on 64-bit chips.
+
+config PPC_52xx
+        bool "Freescale 52xx"
+        
+config PPC_82xx
+        bool "Freescale 82xx"
+
+config PPC_83xx
+        bool "Freescale 83xx"
+
+config 40x
+        bool "AMCC 40x"
+
+config 44x
+        bool "AMCC 44x"
+
+config 8xx
+        bool "Freescale 8xx"
+
+config E200
+        bool "Freescale e200"
+
+config E500
+        bool "Freescale e500"
+endchoice
+
+config POWER4_ONLY
+        bool "Optimize for POWER4"
+        depends on PPC64
+        default n
+        ---help---
+          Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
+          The resulting binary will not work on POWER3 or RS64 processors
+          when compiled with binutils 2.15 or later.
+
+config POWER3
+        bool
+        depends on PPC64
+        default y if !POWER4_ONLY
+
+config POWER4
+        depends on PPC64
+        def_bool y
+
+config PPC_FPU
+        bool
+        default y if PPC64
+
+config BOOKE
+        bool
+        depends on E200 || E500
+        default y
+
+config FSL_BOOKE
+        bool
+        depends on E200 || E500
+        default y
+
+config PTE_64BIT
+        bool
+        depends on 44x || E500
+        default y if 44x
+        default y if E500 && PHYS_64BIT
+
+config PHYS_64BIT
+        bool 'Large physical address support' if E500
+        depends on 44x || E500
+        default y if 44x
+        ---help---
+          This option enables kernel support for larger than 32-bit physical
+          addresses.  This features is not be available on all e500 cores.
+
+          If in doubt, say N here.
+
+config ALTIVEC
+        bool "AltiVec Support"
+        depends on 6xx || POWER4
+        ---help---
+          This option enables kernel support for the Altivec extensions to the
+          PowerPC processor. The kernel currently supports saving and restoring
+          altivec registers, and turning on the 'altivec enable' bit so user
+          processes can execute altivec instructions.
+
+          This option is only usefully if you have a processor that supports
+          altivec (G4, otherwise known as 74xx series), but does not have
+          any affect on a non-altivec cpu (it does, however add code to the
+          kernel).
+
+          If in doubt, say Y here.
+
+config SPE
+        bool "SPE Support"
+        depends on E200 || E500
+        ---help---
+          This option enables kernel support for the Signal Processing
+          Extensions (SPE) to the PowerPC processor. The kernel currently
+          supports saving and restoring SPE registers, and turning on the
+          'spe enable' bit so user processes can execute SPE instructions.
+
+          This option is only useful if you have a processor that supports
+          SPE (e500, otherwise known as 85xx series), but does not have any
+          effect on a non-spe cpu (it does, however add code to the kernel).
+
+          If in doubt, say Y here.
+
+config PPC_STD_MMU
+        bool
+        depends on 6xx || POWER3 || POWER4 || PPC64
+        default y
+
+config PPC_STD_MMU_32
+        def_bool y
+        depends on PPC_STD_MMU && PPC32
+
+config SMP
+        depends on PPC_STD_MMU
+        bool "Symmetric multi-processing support"
+        ---help---
+          This enables support for systems with more than one CPU. If you have
+          a system with only one CPU, say N. If you have a system with more
+          than one CPU, say Y.  Note that the kernel does not currently
+          support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
+          since they have inadequate hardware support for multiprocessor
+          operation.
+
+          If you say N here, the kernel will run on single and multiprocessor
+          machines, but will use only one CPU of a multiprocessor machine. If
+          you say Y here, the kernel will run on single-processor machines.
+          On a single-processor machine, the kernel will run faster if you say
+          N here.
+
+          If you don't know what to do here, say N.
+
+config NR_CPUS
+        int "Maximum number of CPUs (2-32)"
+        range 2 128
+        depends on SMP
+        default "32" if PPC64
+        default "4"
+
+config NOT_COHERENT_CACHE
+        bool
+        depends on 4xx || 8xx || E200
+        default y
+endmenu
+
+source "init/Kconfig"
+
+menu "Platform support"
+        depends on PPC64 || 6xx
+
+choice
+        prompt "Machine type"
+        default PPC_MULTIPLATFORM
+
+config PPC_MULTIPLATFORM
+        bool "Generic desktop/server/laptop"
+        help
+          Select this option if configuring for an IBM pSeries or
+          RS/6000 machine, an Apple machine, or a PReP, CHRP,
+          Maple or Cell-based machine.
+
+config PPC_ISERIES
+        bool "IBM Legacy iSeries"
+        depends on PPC64
+
+config EMBEDDED6xx
+        bool "Embedded 6xx/7xx/7xxx-based board"
+        depends on PPC32
+
+config APUS
+        bool "Amiga-APUS"
+        depends on PPC32 && BROKEN
+        help
+          Select APUS if configuring for a PowerUP Amiga.
+          More information is available at:
+          <http://linux-apus.sourceforge.net/>.
+endchoice
+
+config PPC_PSERIES
+        depends on PPC_MULTIPLATFORM && PPC64
+        bool "  IBM pSeries & new (POWER5-based) iSeries"
+        select PPC_I8259
+        select PPC_RTAS
+        select RTAS_ERROR_LOGGING
+        default y
+
+config PPC_CHRP
+        bool "  Common Hardware Reference Platform (CHRP) based machines"
+        depends on PPC_MULTIPLATFORM && PPC32
+        select PPC_I8259
+        select PPC_INDIRECT_PCI
+        select PPC_RTAS
+        select PPC_MPC106
+        default y
+
+config PPC_PMAC
+        bool "  Apple PowerMac based machines"
+        depends on PPC_MULTIPLATFORM
+        select PPC_INDIRECT_PCI if PPC32
+        select PPC_MPC106 if PPC32
+        default y
+
+config PPC_PMAC64
+        bool
+        depends on PPC_PMAC && POWER4
+        select U3_DART
+        default y
+
+config PPC_PREP
+        bool "  PowerPC Reference Platform (PReP) based machines"
+        depends on PPC_MULTIPLATFORM && PPC32
+        select PPC_I8259
+        select PPC_INDIRECT_PCI
+        default y
+
+config PPC_MAPLE
+        depends on PPC_MULTIPLATFORM && PPC64
+        bool "  Maple 970FX Evaluation Board"
+        select U3_DART
+        select MPIC_BROKEN_U3
+        default n
+        help
+          This option enables support for the Maple 970FX Evaluation Board.
+          For more informations, refer to <http://www.970eval.com>
+
+config PPC_BPA
+        bool "  Broadband Processor Architecture"
+        depends on PPC_MULTIPLATFORM && PPC64
+        select PPC_RTAS
+
+config PPC_OF
+        bool
+        depends on PPC_MULTIPLATFORM    # for now
+        default y
+
+config XICS
+        depends on PPC_PSERIES
+        bool
+        default y
+
+config U3_DART
+        bool 
+        depends on PPC_MULTIPLATFORM && PPC64
+        default n
+
+config MPIC
+        depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
+        bool
+        default y
+
+config PPC_RTAS
+        bool
+        default n
+
+config RTAS_ERROR_LOGGING
+        bool
+        depends on PPC_RTAS
+        default n
+
+config MPIC_BROKEN_U3
+        bool
+        depends on PPC_MAPLE
+        default y
+
+config BPA_IIC
+        depends on PPC_BPA
+        bool
+        default y
+
+config IBMVIO
+        depends on PPC_PSERIES || PPC_ISERIES
+        bool
+        default y
+
+config PPC_MPC106
+        bool
+        default n
+
+source "drivers/cpufreq/Kconfig"
+
+config CPU_FREQ_PMAC
+        bool "Support for Apple PowerBooks"
+        depends on CPU_FREQ && ADB_PMU && PPC32
+        select CPU_FREQ_TABLE
+        help
+          This adds support for frequency switching on Apple PowerBooks,
+          this currently includes some models of iBook & Titanium
+          PowerBook.
+
+config PPC601_SYNC_FIX
+        bool "Workarounds for PPC601 bugs"
+        depends on 6xx && (PPC_PREP || PPC_PMAC)
+        help
+          Some versions of the PPC601 (the first PowerPC chip) have bugs which
+          mean that extra synchronization instructions are required near
+          certain instructions, typically those that make major changes to the
+          CPU state.  These extra instructions reduce performance slightly.
+          If you say N here, these extra instructions will not be included,
+          resulting in a kernel which will run faster but may not run at all
+          on some systems with the PPC601 chip.
+
+          If in doubt, say Y here.
+
+config TAU
+        bool "Thermal Management Support"
+        depends on 6xx
+        help
+          G3 and G4 processors have an on-chip temperature sensor called the
+          'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
+          temperature within 2-4 degrees Celsius. This option shows the current
+          on-die temperature in /proc/cpuinfo if the cpu supports it.
+
+          Unfortunately, on some chip revisions, this sensor is very inaccurate
+          and in some cases, does not work at all, so don't assume the cpu
+          temp is actually what /proc/cpuinfo says it is.
+
+config TAU_INT
+        bool "Interrupt driven TAU driver (DANGEROUS)"
+        depends on TAU
+        ---help---
+          The TAU supports an interrupt driven mode which causes an interrupt
+          whenever the temperature goes out of range. This is the fastest way
+          to get notified the temp has exceeded a range. With this option off,
+          a timer is used to re-check the temperature periodically.
+
+          However, on some cpus it appears that the TAU interrupt hardware
+          is buggy and can cause a situation which would lead unexplained hard
+          lockups.
+
+          Unless you are extending the TAU driver, or enjoy kernel/hardware
+          debugging, leave this option off.
+
+config TAU_AVERAGE
+        bool "Average high and low temp"
+        depends on TAU
+        ---help---
+          The TAU hardware can compare the temperature to an upper and lower
+          bound.  The default behavior is to show both the upper and lower
+          bound in /proc/cpuinfo. If the range is large, the temperature is
+          either changing a lot, or the TAU hardware is broken (likely on some
+          G4's). If the range is small (around 4 degrees), the temperature is
+          relatively stable.  If you say Y here, a single temperature value,
+          halfway between the upper and lower bounds, will be reported in
+          /proc/cpuinfo.
+
+          If in doubt, say N here.
+endmenu
+
+source arch/powerpc/platforms/embedded6xx/Kconfig
+source arch/powerpc/platforms/4xx/Kconfig
+source arch/powerpc/platforms/85xx/Kconfig
+source arch/powerpc/platforms/8xx/Kconfig
+
+menu "Kernel options"
+
+config HIGHMEM
+        bool "High memory support"
+        depends on PPC32
+
+source kernel/Kconfig.hz
+source kernel/Kconfig.preempt
+source "fs/Kconfig.binfmt"
+
+# We optimistically allocate largepages from the VM, so make the limit
+# large enough (16MB). This badly named config option is actually
+# max order + 1
+config FORCE_MAX_ZONEORDER
+        int
+        depends on PPC64
+        default "13"
+
+config MATH_EMULATION
+        bool "Math emulation"
+        depends on 4xx || 8xx || E200 || E500
+        ---help---
+          Some PowerPC chips designed for embedded applications do not have
+          a floating-point unit and therefore do not implement the
+          floating-point instructions in the PowerPC instruction set.  If you
+          say Y here, the kernel will include code to emulate a floating-point
+          unit, which will allow programs that use floating-point
+          instructions to run.
+
+config IOMMU_VMERGE
+        bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
+        depends on EXPERIMENTAL && PPC64
+        default n
+        help
+          Cause IO segments sent to a device for DMA to be merged virtually
+          by the IOMMU when they happen to have been allocated contiguously.
+          This doesn't add pressure to the IOMMU allocator. However, some
+          drivers don't support getting large merged segments coming back
+          from *_map_sg(). Say Y if you know the drivers you are using are
+          properly handling this case.
+
+config HOTPLUG_CPU
+        bool "Support for enabling/disabling CPUs"
+        depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
+        ---help---
+          Say Y here to be able to disable and re-enable individual
+          CPUs at runtime on SMP machines.
+
+          Say N if you are unsure.
+
+config KEXEC
+        bool "kexec system call (EXPERIMENTAL)"
+        depends on PPC_MULTIPLATFORM && EXPERIMENTAL
+        help
+          kexec is a system call that implements the ability to shutdown your
+          current kernel, and to start another kernel.  It is like a reboot
+          but it is indepedent of the system firmware.   And like a reboot
+          you can start any kernel with it, not just Linux.
+
+          The name comes from the similiarity to the exec system call.
+
+          It is an ongoing process to be certain the hardware in a machine
+          is properly shutdown, so do not be surprised if this code does not
+          initially work for you.  It may help to enable device hotplugging
+          support.  As of this writing the exact hardware interface is
+          strongly in flux, so no good recommendation can be made.
+
+config EMBEDDEDBOOT
+        bool
+        depends on 8xx || 8260
+        default y
+
+config PC_KEYBOARD
+        bool "PC PS/2 style Keyboard"
+        depends on 4xx || CPM2
+
+config PPCBUG_NVRAM
+        bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
+        default y if PPC_PREP
+
+config IRQ_ALL_CPUS
+        bool "Distribute interrupts on all CPUs by default"
+        depends on SMP && !MV64360
+        help
+          This option gives the kernel permission to distribute IRQs across
+          multiple CPUs.  Saying N here will route all IRQs to the first
+          CPU.  Generally saying Y is safe, although some problems have been
+          reported with SMP Power Macintoshes with this option enabled.
+
+source "arch/powerpc/platforms/pseries/Kconfig"
+
+config NUMA
+        bool "NUMA support"
+        depends on PPC64
+        default y if SMP && PPC_PSERIES
+
+config ARCH_SELECT_MEMORY_MODEL
+        def_bool y
+        depends on PPC64
+
+config ARCH_FLATMEM_ENABLE
+       def_bool y
+       depends on PPC64 && !NUMA
+
+config ARCH_DISCONTIGMEM_ENABLE
+        def_bool y
+        depends on SMP && PPC_PSERIES
+
+config ARCH_DISCONTIGMEM_DEFAULT
+        def_bool y
+        depends on ARCH_DISCONTIGMEM_ENABLE
+
+config ARCH_SPARSEMEM_ENABLE
+        def_bool y
+        depends on ARCH_DISCONTIGMEM_ENABLE
+
+source "mm/Kconfig"
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+        def_bool y
+        depends on NEED_MULTIPLE_NODES
+
+# Some NUMA nodes have memory ranges that span
+# other nodes.  Even though a pfn is valid and
+# between a node's start and end pfns, it may not
+# reside on that node.
+#
+# This is a relatively temporary hack that should
+# be able to go away when sparsemem is fully in
+# place
+
+config NODES_SPAN_OTHER_NODES
+        def_bool y
+        depends on NEED_MULTIPLE_NODES
+
+config SCHED_SMT
+        bool "SMT (Hyperthreading) scheduler support"
+        depends on PPC64 && SMP
+        default off
+        help
+          SMT scheduler support improves the CPU scheduler's decision making
+          when dealing with POWER5 cpus at a cost of slightly increased
+          overhead in some places. If unsure say N here.
+
+config PROC_DEVICETREE
+        bool "Support for device tree in /proc"
+        depends on PROC_FS
+        help
+          This option adds a device-tree directory under /proc which contains
+          an image of the device tree that the kernel copies from Open
+          Firmware or other boot firmware. If unsure, say Y here.
+
+source "arch/powerpc/platforms/prep/Kconfig"
+
+config CMDLINE_BOOL
+        bool "Default bootloader kernel arguments"
+        depends on !PPC_ISERIES
+
+config CMDLINE
+        string "Initial kernel command string"
+        depends on CMDLINE_BOOL
+        default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
+        help
+          On some platforms, there is currently no way for the boot loader to
+          pass arguments to the kernel. For these platforms, you can supply
+          some command-line options at build time by entering them here.  In
+          most cases you will need to specify the root device here.
+
+if !44x || BROKEN
+source kernel/power/Kconfig
+endif
+
+config SECCOMP
+        bool "Enable seccomp to safely compute untrusted bytecode"
+        depends on PROC_FS
+        default y
+        help
+          This kernel feature is useful for number crunching applications
+          that may need to compute untrusted bytecode during their
+          execution. By using pipes or other transports made available to
+          the process as file descriptors supporting the read/write
+          syscalls, it's possible to isolate those applications in
+          their own address space using seccomp. Once seccomp is
+          enabled via /proc/<pid>/seccomp, it cannot be disabled
+          and the task is only allowed to execute a few safe syscalls
+          defined by each seccomp mode.
+
+          If unsure, say Y. Only embedded should say N here.
+
+endmenu
+
+config ISA_DMA_API
+        bool
+        default y
+
+menu "Bus options"
+
+config ISA
+        bool "Support for ISA-bus hardware"
+        depends on PPC_PREP || PPC_CHRP
+        select PPC_I8259
+        help
+          Find out whether you have ISA slots on your motherboard.  ISA is the
+          name of a bus system, i.e. the way the CPU talks to the other stuff
+          inside your box.  If you have an Apple machine, say N here; if you
+          have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
+          you have an embedded board, consult your board documentation.
+
+config GENERIC_ISA_DMA
+        bool
+        depends on PPC64 || POWER4 || 6xx && !CPM2
+        default y
+
+config PPC_I8259
+        bool
+        default y if 85xx
+        default n
+
+config PPC_INDIRECT_PCI
+        bool
+        depends on PCI
+        default y if 40x || 44x || 85xx || 83xx
+        default n
+
+config EISA
+        bool
+
+config SBUS
+        bool
+
+# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
+config MCA
+        bool
+
+config PCI
+        bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
+        default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
+        default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
+        default PCI_QSPAN if !4xx && !CPM2 && 8xx
+        help
+          Find out whether your system includes a PCI bus. PCI is the name of
+          a bus system, i.e. the way the CPU talks to the other stuff inside
+          your box.  If you say Y here, the kernel will include drivers and
+          infrastructure code to support PCI bus devices.
+
+config PCI_DOMAINS
+        bool
+        default PCI
+
+config MPC83xx_PCI2
+        bool "  Supprt for 2nd PCI host controller"
+        depends on PCI && MPC834x
+        default y if MPC834x_SYS
+
+config PCI_QSPAN
+        bool "QSpan PCI"
+        depends on !4xx && !CPM2 && 8xx
+        select PPC_I8259
+        help
+          Say Y here if you have a system based on a Motorola 8xx-series
+          embedded processor with a QSPAN PCI interface, otherwise say N.
+
+config PCI_8260
+        bool
+        depends on PCI && 8260
+        select PPC_INDIRECT_PCI
+        default y
+
+config 8260_PCI9
+        bool "  Enable workaround for MPC826x erratum PCI 9"
+        depends on PCI_8260 && !ADS8272
+        default y
+
+choice
+        prompt "  IDMA channel for PCI 9 workaround"
+        depends on 8260_PCI9
+
+config 8260_PCI9_IDMA1
+        bool "IDMA1"
+
+config 8260_PCI9_IDMA2
+        bool "IDMA2"
+
+config 8260_PCI9_IDMA3
+        bool "IDMA3"
+
+config 8260_PCI9_IDMA4
+        bool "IDMA4"
+
+endchoice
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+menu "Advanced setup"
+        depends on PPC32
+
+config ADVANCED_OPTIONS
+        bool "Prompt for advanced kernel configuration options"
+        help
+          This option will enable prompting for a variety of advanced kernel
+          configuration options.  These options can cause the kernel to not
+          work if they are set incorrectly, but can be used to optimize certain
+          aspects of kernel memory management.
+
+          Unless you know what you are doing, say N here.
+
+comment "Default settings for advanced configuration options are used"
+        depends on !ADVANCED_OPTIONS
+
+config HIGHMEM_START_BOOL
+        bool "Set high memory pool address"
+        depends on ADVANCED_OPTIONS && HIGHMEM
+        help
+          This option allows you to set the base address of the kernel virtual
+          area used to map high memory pages.  This can be useful in
+          optimizing the layout of kernel virtual memory.
+
+          Say N here unless you know what you are doing.
+
+config HIGHMEM_START
+        hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
+        default "0xfe000000"
+
+config LOWMEM_SIZE_BOOL
+        bool "Set maximum low memory"
+        depends on ADVANCED_OPTIONS
+        help
+          This option allows you to set the maximum amount of memory which
+          will be used as "low memory", that is, memory which the kernel can
+          access directly, without having to set up a kernel virtual mapping.
+          This can be useful in optimizing the layout of kernel virtual
+          memory.
+
+          Say N here unless you know what you are doing.
+
+config LOWMEM_SIZE
+        hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
+        default "0x30000000"
+
+config KERNEL_START_BOOL
+        bool "Set custom kernel base address"
+        depends on ADVANCED_OPTIONS
+        help
+          This option allows you to set the kernel virtual address at which
+          the kernel will map low memory (the kernel image will be linked at
+          this address).  This can be useful in optimizing the virtual memory
+          layout of the system.
+
+          Say N here unless you know what you are doing.
+
+config KERNEL_START
+        hex "Virtual address of kernel base" if KERNEL_START_BOOL
+        default "0xc0000000"
+
+config TASK_SIZE_BOOL
+        bool "Set custom user task size"
+        depends on ADVANCED_OPTIONS
+        help
+          This option allows you to set the amount of virtual address space
+          allocated to user tasks.  This can be useful in optimizing the
+          virtual memory layout of the system.
+
+          Say N here unless you know what you are doing.
+
+config TASK_SIZE
+        hex "Size of user task space" if TASK_SIZE_BOOL
+        default "0x80000000"
+
+config CONSISTENT_START_BOOL
+        bool "Set custom consistent memory pool address"
+        depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
+        help
+          This option allows you to set the base virtual address
+          of the the consistent memory pool.  This pool of virtual
+          memory is used to make consistent memory allocations.
+
+config CONSISTENT_START
+        hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
+        default "0xff100000" if NOT_COHERENT_CACHE
+
+config CONSISTENT_SIZE_BOOL
+        bool "Set custom consistent memory pool size"
+        depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
+        help
+          This option allows you to set the size of the the
+          consistent memory pool.  This pool of virtual memory
+          is used to make consistent memory allocations.
+
+config CONSISTENT_SIZE
+        hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
+        default "0x00200000" if NOT_COHERENT_CACHE
+
+config BOOT_LOAD_BOOL
+        bool "Set the boot link/load address"
+        depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
+        help
+          This option allows you to set the initial load address of the zImage
+          or zImage.initrd file.  This can be useful if you are on a board
+          which has a small amount of memory.
+
+          Say N here unless you know what you are doing.
+
+config BOOT_LOAD
+        hex "Link/load address for booting" if BOOT_LOAD_BOOL
+        default "0x00400000" if 40x || 8xx || 8260
+        default "0x01000000" if 44x
+        default "0x00800000"
+
+config PIN_TLB
+        bool "Pinned Kernel TLBs (860 ONLY)"
+        depends on ADVANCED_OPTIONS && 8xx
+endmenu
+
+if PPC64
+config KERNEL_START
+        hex
+        default "0xc000000000000000"
+endif
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+# XXX source "arch/ppc/8xx_io/Kconfig"
+
+# XXX source "arch/ppc/8260_io/Kconfig"
+
+source "arch/powerpc/platforms/iseries/Kconfig"
+
+source "lib/Kconfig"
+
+source "arch/powerpc/oprofile/Kconfig"
+
+source "arch/powerpc/Kconfig.debug"
+
+source "security/Kconfig"
+
+config KEYS_COMPAT
+        bool
+        depends on COMPAT && KEYS
+        default y
+
+source "crypto/Kconfig"
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
new file mode 100644
index 000000000000..0baf64ec80d0
--- /dev/null
+++ b/arch/powerpc/Kconfig.debug
@@ -0,0 +1,128 @@
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config DEBUG_STACKOVERFLOW
+        bool "Check for stack overflows"
+        depends on DEBUG_KERNEL && PPC64
+        help
+          This option will cause messages to be printed if free stack space
+          drops below a certain limit.
+
+config KPROBES
+        bool "Kprobes"
+        depends on DEBUG_KERNEL && PPC64
+        help
+          Kprobes allows you to trap at almost any kernel address and
+          execute a callback function.  register_kprobe() establishes
+          a probepoint and specifies the callback.  Kprobes is useful
+          for kernel debugging, non-intrusive instrumentation and testing.
+          If in doubt, say "N".
+
+config DEBUG_STACK_USAGE
+        bool "Stack utilization instrumentation"
+        depends on DEBUG_KERNEL && PPC64
+        help
+          Enables the display of the minimum amount of free stack which each
+          task has ever had available in the sysrq-T and sysrq-P debug output.
+
+          This option will slow down process creation somewhat.
+
+config DEBUGGER
+        bool "Enable debugger hooks"
+        depends on DEBUG_KERNEL
+        help
+          Include in-kernel hooks for kernel debuggers. Unless you are
+          intending to debug the kernel, say N here.
+
+config KGDB
+        bool "Include kgdb kernel debugger"
+        depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx)
+        select DEBUG_INFO
+        help
+          Include in-kernel hooks for kgdb, the Linux kernel source level
+          debugger.  See <http://kgdb.sourceforge.net/> for more information.
+          Unless you are intending to debug the kernel, say N here.
+
+choice
+        prompt "Serial Port"
+        depends on KGDB
+        default KGDB_TTYS1
+
+config KGDB_TTYS0
+        bool "ttyS0"
+
+config KGDB_TTYS1
+        bool "ttyS1"
+
+config KGDB_TTYS2
+        bool "ttyS2"
+
+config KGDB_TTYS3
+        bool "ttyS3"
+
+endchoice
+
+config KGDB_CONSOLE
+        bool "Enable serial console thru kgdb port"
+        depends on KGDB && 8xx || CPM2
+        help
+          If you enable this, all serial console messages will be sent
+          over the gdb stub.
+          If unsure, say N.
+
+config XMON
+        bool "Include xmon kernel debugger"
+        depends on DEBUGGER && !PPC_ISERIES
+        help
+          Include in-kernel hooks for the xmon kernel monitor/debugger.
+          Unless you are intending to debug the kernel, say N here.
+          Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise
+          nothing will appear on the screen (xmon writes directly to the
+          framebuffer memory).
+          The cmdline option 'xmon' or 'xmon=early' will drop into xmon
+          very early during boot. 'xmon=on' will just enable the xmon
+          debugger hooks.  'xmon=off' will disable the debugger hooks
+          if CONFIG_XMON_DEFAULT is set.
+
+config XMON_DEFAULT
+        bool "Enable xmon by default"
+        depends on XMON
+        help
+          xmon is normally disabled unless booted with 'xmon=on'.
+          Use 'xmon=off' to disable xmon init during runtime.
+
+config IRQSTACKS
+        bool "Use separate kernel stacks when processing interrupts"
+        depends on PPC64
+        help
+          If you say Y here the kernel will use separate kernel stacks
+          for handling hard and soft interrupts.  This can help avoid
+          overflowing the process kernel stacks.
+
+config BDI_SWITCH
+        bool "Include BDI-2000 user context switcher"
+        depends on DEBUG_KERNEL && PPC32
+        help
+          Include in-kernel support for the Abatron BDI2000 debugger.
+          Unless you are intending to debug the kernel with one of these
+          machines, say N here.
+
+config BOOTX_TEXT
+        bool "Support for early boot text console (BootX or OpenFirmware only)"
+        depends PPC_OF && !PPC_ISERIES
+        help
+          Say Y here to see progress messages from the boot firmware in text
+          mode. Requires either BootX or Open Firmware.
+
+config SERIAL_TEXT_DEBUG
+        bool "Support for early boot texts over serial port"
+        depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \
+                PPC_GEN550 || PPC_MPC52xx
+
+config PPC_OCP
+        bool
+        depends on IBM_OCP || XILINX_OCP
+        default y
+
+endmenu
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
new file mode 100644
index 000000000000..2f4cce06a7e5
--- /dev/null
+++ b/arch/powerpc/Makefile
@@ -0,0 +1,222 @@
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies. Remember to do have actions
+# for "archclean" and "archdep" for cleaning up and making dependencies for
+# this architecture.
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+# Changes for PPC by Gary Thomas
+# Rewritten by Cort Dougan and Paul Mackerras
+#
+
+# This must match PAGE_OFFSET in include/asm-powerpc/page.h.
+KERNELLOAD      := $(CONFIG_KERNEL_START)
+
+HAS_BIARCH      := $(call cc-option-yn, -m32)
+
+ifeq ($(CONFIG_PPC64),y)
+OLDARCH := ppc64
+SZ      := 64
+
+# Set default 32 bits cross compilers for vdso and boot wrapper
+CROSS32_COMPILE ?=
+
+CROSS32CC               := $(CROSS32_COMPILE)gcc
+CROSS32AS               := $(CROSS32_COMPILE)as
+CROSS32LD               := $(CROSS32_COMPILE)ld
+CROSS32OBJCOPY          := $(CROSS32_COMPILE)objcopy
+
+ifeq ($(HAS_BIARCH),y)
+ifeq ($(CROSS32_COMPILE),)
+CROSS32CC       := $(CC) -m32
+CROSS32AS       := $(AS) -a32
+CROSS32LD       := $(LD) -m elf32ppc
+CROSS32OBJCOPY  := $(OBJCOPY)
+endif
+endif
+
+export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
+
+new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
+
+ifeq ($(new_nm),y)
+NM              := $(NM) --synthetic
+endif
+
+else
+OLDARCH := ppc
+SZ      := 32
+endif
+
+UTS_MACHINE := $(OLDARCH)
+
+ifeq ($(HAS_BIARCH),y)
+override AS     += -a$(SZ)
+override LD     += -m elf$(SZ)ppc
+override CC     += -m$(SZ)
+endif
+
+LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic -e $(KERNELLOAD)
+
+# The -Iarch/$(ARCH)/include is temporary while we are merging
+CPPFLAGS        += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
+AFLAGS          += -Iarch/$(ARCH)
+CFLAGS          += -Iarch/$(ARCH) -msoft-float -pipe
+CFLAGS-$(CONFIG_PPC64)  := -mminimal-toc -mtraceback=none  -mcall-aixdesc
+CFLAGS-$(CONFIG_PPC32)  := -ffixed-r2 -mmultiple
+CFLAGS          += $(CFLAGS-y)
+CPP             = $(CC) -E $(CFLAGS)
+# Temporary hack until we have migrated to asm-powerpc
+LINUXINCLUDE    += -Iarch/$(ARCH)/include
+
+CHECKFLAGS      += -m$(SZ) -D__powerpc__ -D__powerpc$(SZ)__
+
+ifeq ($(CONFIG_PPC64),y)
+GCC_VERSION     := $(call cc-version)
+GCC_BROKEN_VEC  := $(shell if [ $(GCC_VERSION) -lt 0400 ] ; then echo "y"; fi)
+
+ifeq ($(CONFIG_POWER4_ONLY),y)
+ifeq ($(CONFIG_ALTIVEC),y)
+ifeq ($(GCC_BROKEN_VEC),y)
+        CFLAGS += $(call cc-option,-mcpu=970)
+else
+        CFLAGS += $(call cc-option,-mcpu=power4)
+endif
+else
+        CFLAGS += $(call cc-option,-mcpu=power4)
+endif
+else
+        CFLAGS += $(call cc-option,-mtune=power4)
+endif
+endif
+
+# No AltiVec instruction when building kernel
+CFLAGS += $(call cc-option,-mno-altivec)
+
+# Enable unit-at-a-time mode when possible. It shrinks the
+# kernel considerably.
+CFLAGS += $(call cc-option,-funit-at-a-time)
+
+ifndef CONFIG_FSL_BOOKE
+CFLAGS          += -mstring
+endif
+
+cpu-as-$(CONFIG_PPC64BRIDGE)    += -Wa,-mppc64bridge
+cpu-as-$(CONFIG_4xx)            += -Wa,-m405
+cpu-as-$(CONFIG_6xx)            += -Wa,-maltivec
+cpu-as-$(CONFIG_POWER4)         += -Wa,-maltivec
+cpu-as-$(CONFIG_E500)           += -Wa,-me500
+cpu-as-$(CONFIG_E200)           += -Wa,-me200
+
+AFLAGS += $(cpu-as-y)
+CFLAGS += $(cpu-as-y)
+
+# Default to the common case.
+KBUILD_DEFCONFIG := common_defconfig
+
+head-y                          := arch/powerpc/kernel/head_32.o
+head-$(CONFIG_PPC64)            := arch/powerpc/kernel/head_64.o
+head-$(CONFIG_8xx)              := arch/powerpc/kernel/head_8xx.o
+head-$(CONFIG_4xx)              := arch/powerpc/kernel/head_4xx.o
+head-$(CONFIG_44x)              := arch/powerpc/kernel/head_44x.o
+head-$(CONFIG_FSL_BOOKE)        := arch/powerpc/kernel/head_fsl_booke.o
+
+head-$(CONFIG_PPC64)            += arch/powerpc/kernel/entry_64.o
+head-$(CONFIG_PPC_FPU)          += arch/powerpc/kernel/fpu.o
+
+core-y                          += arch/powerpc/kernel/ \
+                                   arch/$(OLDARCH)/kernel/ \
+                                   arch/powerpc/mm/ \
+                                   arch/powerpc/lib/ \
+                                   arch/powerpc/sysdev/ \
+                                   arch/powerpc/platforms/
+core-$(CONFIG_MATH_EMULATION)   += arch/ppc/math-emu/
+core-$(CONFIG_XMON)             += arch/powerpc/xmon/
+core-$(CONFIG_APUS)             += arch/ppc/amiga/
+drivers-$(CONFIG_8xx)           += arch/ppc/8xx_io/
+drivers-$(CONFIG_4xx)           += arch/ppc/4xx_io/
+drivers-$(CONFIG_CPM2)          += arch/ppc/8260_io/
+
+drivers-$(CONFIG_OPROFILE)      += arch/powerpc/oprofile/
+
+defaultimage-$(CONFIG_PPC32)    := uImage zImage
+defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
+defaultimage-$(CONFIG_PPC_PSERIES) := zImage
+KBUILD_IMAGE := $(defaultimage-y)
+all: $(KBUILD_IMAGE)
+
+CPPFLAGS_vmlinux.lds    := -Upowerpc
+
+# All the instructions talk about "make bzImage".
+bzImage: zImage
+
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
+
+.PHONY: $(BOOT_TARGETS)
+
+boot := arch/$(OLDARCH)/boot
+
+# urk
+ifeq ($(CONFIG_PPC64),y)
+$(BOOT_TARGETS): vmlinux
+        $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+else
+$(BOOT_TARGETS): vmlinux
+        $(Q)$(MAKE) ARCH=ppc $(build)=$(boot) $@
+endif
+
+uImage: vmlinux
+        $(Q)$(MAKE) ARCH=$(OLDARCH) $(build)=$(boot)/images $(boot)/images/$@
+
+define archhelp
+  @echo '* zImage          - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
+  @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
+  @echo '  install         - Install kernel using'
+  @echo '                    (your) ~/bin/installkernel or'
+  @echo '                    (distribution) /sbin/installkernel or'
+  @echo '                    install to $$(INSTALL_PATH) and run lilo'
+  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
+endef
+
+archclean:
+        $(Q)$(MAKE) $(clean)=$(boot)
+        # Temporary hack until we have migrated to asm-powerpc
+        $(Q)rm -rf arch/$(ARCH)/include
+
+archprepare: checkbin
+
+# Temporary hack until we have migrated to asm-powerpc
+include/asm: arch/$(ARCH)/include/asm
+arch/$(ARCH)/include/asm:
+        $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
+        $(Q)ln -fsn $(srctree)/include/asm-$(OLDARCH) arch/$(ARCH)/include/asm
+
+# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
+# to stdout and these checks are run even on install targets.
+TOUT    := .tmp_gas_check
+# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
+# instructions.
+# gcc-3.4 and binutils-2.14 are a fatal combination.
+GCC_VERSION     := $(call cc-version)
+
+checkbin:
+        @if test "$(GCC_VERSION)" = "0304" ; then \
+                if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
+                        echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
+                        echo 'correctly with gcc-3.4 and your version of binutils.'; \
+                        echo '*** Please upgrade your binutils or downgrade your gcc'; \
+                        false; \
+                fi ; \
+        fi
+        @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
+                echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
+                echo 'correctly with old versions of binutils.' ; \
+                echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
+                false ; \
+        fi
+
+CLEAN_FILES += $(TOUT)
+
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
new file mode 100644
index 000000000000..572d4f5eaacb
--- /dev/null
+++ b/arch/powerpc/kernel/Makefile
@@ -0,0 +1,56 @@
+#
+# Makefile for the linux kernel.
+#
+
+ifeq ($(CONFIG_PPC64),y)
+EXTRA_CFLAGS    += -mno-minimal-toc
+endif
+ifeq ($(CONFIG_PPC32),y)
+CFLAGS_prom_init.o      += -fPIC
+CFLAGS_btext.o          += -fPIC
+endif
+
+obj-y                           := semaphore.o cputable.o ptrace.o syscalls.o \
+                                   signal_32.o pmc.o
+obj-$(CONFIG_PPC64)             += setup_64.o binfmt_elf32.o sys_ppc32.o \
+                                   ptrace32.o systbl.o
+obj-$(CONFIG_ALTIVEC)           += vecemu.o vector.o
+obj-$(CONFIG_POWER4)            += idle_power4.o
+obj-$(CONFIG_PPC_OF)            += of_device.o
+obj-$(CONFIG_PPC_RTAS)          += rtas.o
+obj-$(CONFIG_IBMVIO)            += vio.o
+
+ifeq ($(CONFIG_PPC_MERGE),y)
+
+extra-$(CONFIG_PPC_STD_MMU)     := head_32.o
+extra-$(CONFIG_PPC64)           := head_64.o
+extra-$(CONFIG_40x)             := head_4xx.o
+extra-$(CONFIG_44x)             := head_44x.o
+extra-$(CONFIG_FSL_BOOKE)       := head_fsl_booke.o
+extra-$(CONFIG_8xx)             := head_8xx.o
+extra-y                         += vmlinux.lds
+
+obj-y                           += process.o init_task.o time.o \
+                                   prom.o traps.o setup-common.o
+obj-$(CONFIG_PPC32)             += entry_32.o setup_32.o misc_32.o systbl.o
+obj-$(CONFIG_PPC64)             += misc_64.o
+obj-$(CONFIG_PPC_OF)            += prom_init.o
+obj-$(CONFIG_MODULES)           += ppc_ksyms.o
+obj-$(CONFIG_BOOTX_TEXT)        += btext.o
+obj-$(CONFIG_6xx)               += idle_6xx.o
+
+ifeq ($(CONFIG_PPC_ISERIES),y)
+$(obj)/head_64.o: $(obj)/lparmap.s
+AFLAGS_head_64.o += -I$(obj)
+endif
+
+else
+# stuff used from here for ARCH=ppc or ARCH=ppc64
+obj-$(CONFIG_PPC64)             += traps.o process.o init_task.o time.o \
+                                   setup-common.o
+
+
+endif
+
+extra-$(CONFIG_PPC_FPU)         += fpu.o
+extra-$(CONFIG_PPC64)           += entry_64.o
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
new file mode 100644
index 000000000000..330cd783206f
--- /dev/null
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -0,0 +1,273 @@
+/*
+ * This program is used to generate definitions needed by
+ * assembly language modules.
+ *
+ * We use the technique used in the OSF Mach kernel code:
+ * generate asm statements containing #defines,
+ * compile this file to assembler, and then extract the
+ * #defines from the assembly-language output.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#ifdef CONFIG_PPC64
+#include <linux/time.h>
+#include <linux/hardirq.h>
+#else
+#include <linux/ptrace.h>
+#include <linux/suspend.h>
+#endif
+
+#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/rtas.h>
+#ifdef CONFIG_PPC64
+#include <asm/paca.h>
+#include <asm/lppaca.h>
+#include <asm/iSeries/HvLpEvent.h>
+#include <asm/cache.h>
+#include <asm/systemcfg.h>
+#include <asm/compat.h>
+#endif
+
+#define DEFINE(sym, val) \
+        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+int main(void)
+{
+        DEFINE(THREAD, offsetof(struct task_struct, thread));
+        DEFINE(MM, offsetof(struct task_struct, mm));
+#ifdef CONFIG_PPC64
+        DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context));
+#else
+        DEFINE(THREAD_INFO, offsetof(struct task_struct, thread_info));
+        DEFINE(PTRACE, offsetof(struct task_struct, ptrace));
+#endif /* CONFIG_PPC64 */
+
+        DEFINE(KSP, offsetof(struct thread_struct, ksp));
+        DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
+        DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
+        DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
+        DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
+#ifdef CONFIG_ALTIVEC
+        DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
+        DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
+        DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
+        DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
+#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_PPC64
+        DEFINE(KSP_VSID, offsetof(struct thread_struct, ksp_vsid));
+#else /* CONFIG_PPC64 */
+        DEFINE(PGDIR, offsetof(struct thread_struct, pgdir));
+        DEFINE(LAST_SYSCALL, offsetof(struct thread_struct, last_syscall));
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+        DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0));
+        DEFINE(PT_PTRACED, PT_PTRACED);
+#endif
+#ifdef CONFIG_SPE
+        DEFINE(THREAD_EVR0, offsetof(struct thread_struct, evr[0]));
+        DEFINE(THREAD_ACC, offsetof(struct thread_struct, acc));
+        DEFINE(THREAD_SPEFSCR, offsetof(struct thread_struct, spefscr));
+        DEFINE(THREAD_USED_SPE, offsetof(struct thread_struct, used_spe));
+#endif /* CONFIG_SPE */
+#endif /* CONFIG_PPC64 */
+
+        DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+        DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
+        DEFINE(TI_SC_NOERR, offsetof(struct thread_info, syscall_noerror));
+#ifdef CONFIG_PPC32
+        DEFINE(TI_TASK, offsetof(struct thread_info, task));
+        DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
+        DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
+#endif /* CONFIG_PPC32 */
+
+#ifdef CONFIG_PPC64
+        DEFINE(DCACHEL1LINESIZE, offsetof(struct ppc64_caches, dline_size));
+        DEFINE(DCACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_dline_size));
+        DEFINE(DCACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, dlines_per_page));
+        DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size));
+        DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
+        DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
+        DEFINE(PLATFORM, offsetof(struct systemcfg, platform));
+        DEFINE(PLATFORM_LPAR, PLATFORM_LPAR);
+
+        /* paca */
+        DEFINE(PACA_SIZE, sizeof(struct paca_struct));
+        DEFINE(PACAPACAINDEX, offsetof(struct paca_struct, paca_index));
+        DEFINE(PACAPROCSTART, offsetof(struct paca_struct, cpu_start));
+        DEFINE(PACAKSAVE, offsetof(struct paca_struct, kstack));
+        DEFINE(PACACURRENT, offsetof(struct paca_struct, __current));
+        DEFINE(PACASAVEDMSR, offsetof(struct paca_struct, saved_msr));
+        DEFINE(PACASTABREAL, offsetof(struct paca_struct, stab_real));
+        DEFINE(PACASTABVIRT, offsetof(struct paca_struct, stab_addr));
+        DEFINE(PACASTABRR, offsetof(struct paca_struct, stab_rr));
+        DEFINE(PACAR1, offsetof(struct paca_struct, saved_r1));
+        DEFINE(PACATOC, offsetof(struct paca_struct, kernel_toc));
+        DEFINE(PACAPROCENABLED, offsetof(struct paca_struct, proc_enabled));
+        DEFINE(PACASLBCACHE, offsetof(struct paca_struct, slb_cache));
+        DEFINE(PACASLBCACHEPTR, offsetof(struct paca_struct, slb_cache_ptr));
+        DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
+#ifdef CONFIG_HUGETLB_PAGE
+        DEFINE(PACALOWHTLBAREAS, offsetof(struct paca_struct, context.low_htlb_areas));
+        DEFINE(PACAHIGHHTLBAREAS, offsetof(struct paca_struct, context.high_htlb_areas));
+#endif /* CONFIG_HUGETLB_PAGE */
+        DEFINE(PACADEFAULTDECR, offsetof(struct paca_struct, default_decr));
+        DEFINE(PACA_EXGEN, offsetof(struct paca_struct, exgen));
+        DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc));
+        DEFINE(PACA_EXSLB, offsetof(struct paca_struct, exslb));
+        DEFINE(PACA_EXDSI, offsetof(struct paca_struct, exdsi));
+        DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
+        DEFINE(PACALPPACA, offsetof(struct paca_struct, lppaca));
+        DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
+
+        DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
+        DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
+        DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
+        DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
+#endif /* CONFIG_PPC64 */
+
+        /* RTAS */
+        DEFINE(RTASBASE, offsetof(struct rtas_t, base));
+        DEFINE(RTASENTRY, offsetof(struct rtas_t, entry));
+
+        /* Interrupt register frame */
+        DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
+#ifndef CONFIG_PPC64
+        DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
+#else /* CONFIG_PPC64 */
+        DEFINE(SWITCH_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
+        /* 288 = # of volatile regs, int & fp, for leaf routines */
+        /* which do not stack a frame.  See the PPC64 ABI.       */
+        DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 288);
+        /* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */
+        DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
+        DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
+#endif /* CONFIG_PPC64 */
+        DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
+        DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
+        DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2]));
+        DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3]));
+        DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4]));
+        DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5]));
+        DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6]));
+        DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7]));
+        DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8]));
+        DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9]));
+        DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10]));
+        DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11]));
+        DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12]));
+        DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13]));
+#ifndef CONFIG_PPC64
+        DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14]));
+        DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15]));
+        DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16]));
+        DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17]));
+        DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18]));
+        DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19]));
+        DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20]));
+        DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21]));
+        DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22]));
+        DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23]));
+        DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24]));
+        DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25]));
+        DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26]));
+        DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27]));
+        DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28]));
+        DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29]));
+        DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30]));
+        DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31]));
+#endif /* CONFIG_PPC64 */
+        /*
+         * Note: these symbols include _ because they overlap with special
+         * register names
+         */
+        DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip));
+        DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr));
+        DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr));
+        DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link));
+        DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr));
+        DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer));
+        DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
+        DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
+        DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
+        DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
+        DEFINE(_TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
+#ifndef CONFIG_PPC64
+        DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq));
+        /*
+         * The PowerPC 400-class & Book-E processors have neither the DAR
+         * nor the DSISR SPRs. Hence, we overload them to hold the similar
+         * DEAR and ESR SPRs for such processors.  For critical interrupts
+         * we use them to hold SRR0 and SRR1.
+         */
+        DEFINE(_DEAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
+        DEFINE(_ESR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
+#else /* CONFIG_PPC64 */
+        DEFINE(SOFTE, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, softe));
+
+        /* These _only_ to be used with {PROM,RTAS}_FRAME_SIZE!!! */
+        DEFINE(_SRR0, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs));
+        DEFINE(_SRR1, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs)+8);
+#endif /* CONFIG_PPC64 */
+
+        DEFINE(CLONE_VM, CLONE_VM);
+        DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
+
+#ifndef CONFIG_PPC64
+        DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
+#endif /* ! CONFIG_PPC64 */
+
+        /* About the CPU features table */
+        DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec));
+        DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask));
+        DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
+        DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
+        DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
+
+#ifndef CONFIG_PPC64
+        DEFINE(pbe_address, offsetof(struct pbe, address));
+        DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
+        DEFINE(pbe_next, offsetof(struct pbe, next));
+
+        DEFINE(TASK_SIZE, TASK_SIZE);
+        DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
+#else /* CONFIG_PPC64 */
+        /* systemcfg offsets for use by vdso */
+        DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct systemcfg, tb_orig_stamp));
+        DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct systemcfg, tb_ticks_per_sec));
+        DEFINE(CFG_TB_TO_XS, offsetof(struct systemcfg, tb_to_xs));
+        DEFINE(CFG_STAMP_XSEC, offsetof(struct systemcfg, stamp_xsec));
+        DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct systemcfg, tb_update_count));
+        DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct systemcfg, tz_minuteswest));
+        DEFINE(CFG_TZ_DSTTIME, offsetof(struct systemcfg, tz_dsttime));
+        DEFINE(CFG_SYSCALL_MAP32, offsetof(struct systemcfg, syscall_map_32));
+        DEFINE(CFG_SYSCALL_MAP64, offsetof(struct systemcfg, syscall_map_64));
+
+        /* timeval/timezone offsets for use by vdso */
+        DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
+        DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
+        DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
+        DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
+        DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
+        DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
+#endif /* CONFIG_PPC64 */
+        return 0;
+}
diff --git a/arch/ppc64/kernel/binfmt_elf32.c b/arch/powerpc/kernel/binfmt_elf32.c
index fadc699a0497..8ad6b0f33651 100644
--- a/arch/ppc64/kernel/binfmt_elf32.c
+++ b/arch/powerpc/kernel/binfmt_elf32.c
@@ -70,9 +70,6 @@ cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
         value->tv_sec = jiffies / HZ;
 }
 
-extern void start_thread32(struct pt_regs *, unsigned long, unsigned long);
-#undef start_thread
-#define start_thread start_thread32
 #define init_elf_binfmt init_elf32_binfmt
 
 #include "../../../fs/binfmt_elf.c"
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
new file mode 100644
index 000000000000..bdfba92b2b38
--- /dev/null
+++ b/arch/powerpc/kernel/btext.c
@@ -0,0 +1,853 @@
+/*
+ * Procedures for drawing on the screen early on in the boot process.
+ *
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <asm/sections.h>
+#include <asm/prom.h>
+#include <asm/btext.h>
+#include <asm/prom.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/lmb.h>
+#include <asm/processor.h>
+
+#define NO_SCROLL
+
+#ifndef NO_SCROLL
+static void scrollscreen(void);
+#endif
+
+static void draw_byte(unsigned char c, long locX, long locY);
+static void draw_byte_32(unsigned char *bits, unsigned int *base, int rb);
+static void draw_byte_16(unsigned char *bits, unsigned int *base, int rb);
+static void draw_byte_8(unsigned char *bits, unsigned int *base, int rb);
+
+static int g_loc_X;
+static int g_loc_Y;
+static int g_max_loc_X;
+static int g_max_loc_Y;
+
+static int dispDeviceRowBytes;
+static int dispDeviceDepth;
+static int dispDeviceRect[4];
+static unsigned char *dispDeviceBase, *logicalDisplayBase;
+
+unsigned long disp_BAT[2] __initdata = {0, 0};
+
+#define cmapsz  (16*256)
+
+static unsigned char vga_font[cmapsz];
+
+int boot_text_mapped;
+int force_printk_to_btext = 0;
+
+#ifdef CONFIG_PPC32
+/* Calc BAT values for mapping the display and store them
+ * in disp_BAT.  Those values are then used from head.S to map
+ * the display during identify_machine() and MMU_Init()
+ *
+ * The display is mapped to virtual address 0xD0000000, rather
+ * than 1:1, because some some CHRP machines put the frame buffer
+ * in the region starting at 0xC0000000 (KERNELBASE).
+ * This mapping is temporary and will disappear as soon as the
+ * setup done by MMU_Init() is applied.
+ *
+ * For now, we align the BAT and then map 8Mb on 601 and 16Mb
+ * on other PPCs. This may cause trouble if the framebuffer
+ * is really badly aligned, but I didn't encounter this case
+ * yet.
+ */
+void __init
+btext_prepare_BAT(void)
+{
+        unsigned long vaddr = KERNELBASE + 0x10000000;
+        unsigned long addr;
+        unsigned long lowbits;
+
+        addr = (unsigned long)dispDeviceBase;
+        if (!addr) {
+                boot_text_mapped = 0;
+                return;
+        }
+        if (PVR_VER(mfspr(SPRN_PVR)) != 1) {
+                /* 603, 604, G3, G4, ... */
+                lowbits = addr & ~0xFF000000UL;
+                addr &= 0xFF000000UL;
+                disp_BAT[0] = vaddr | (BL_16M<<2) | 2;
+                disp_BAT[1] = addr | (_PAGE_NO_CACHE | _PAGE_GUARDED | BPP_RW); 
+        } else {
+                /* 601 */
+                lowbits = addr & ~0xFF800000UL;
+                addr &= 0xFF800000UL;
+                disp_BAT[0] = vaddr | (_PAGE_NO_CACHE | PP_RWXX) | 4;
+                disp_BAT[1] = addr | BL_8M | 0x40;
+        }
+        logicalDisplayBase = (void *) (vaddr + lowbits);
+}
+#endif
+
+/* This function will enable the early boot text when doing OF booting. This
+ * way, xmon output should work too
+ */
+void __init
+btext_setup_display(int width, int height, int depth, int pitch,
+                    unsigned long address)
+{
+        g_loc_X = 0;
+        g_loc_Y = 0;
+        g_max_loc_X = width / 8;
+        g_max_loc_Y = height / 16;
+        logicalDisplayBase = (unsigned char *)address;
+        dispDeviceBase = (unsigned char *)address;
+        dispDeviceRowBytes = pitch;
+        dispDeviceDepth = depth;
+        dispDeviceRect[0] = dispDeviceRect[1] = 0;
+        dispDeviceRect[2] = width;
+        dispDeviceRect[3] = height;
+        boot_text_mapped = 1;
+}
+
+/* Here's a small text engine to use during early boot
+ * or for debugging purposes
+ *
+ * todo:
+ *
+ *  - build some kind of vgacon with it to enable early printk
+ *  - move to a separate file
+ *  - add a few video driver hooks to keep in sync with display
+ *    changes.
+ */
+
+void map_boot_text(void)
+{
+        unsigned long base, offset, size;
+        unsigned char *vbase;
+
+        /* By default, we are no longer mapped */
+        boot_text_mapped = 0;
+        if (dispDeviceBase == 0)
+                return;
+        base = ((unsigned long) dispDeviceBase) & 0xFFFFF000UL;
+        offset = ((unsigned long) dispDeviceBase) - base;
+        size = dispDeviceRowBytes * dispDeviceRect[3] + offset
+                + dispDeviceRect[0];
+        vbase = __ioremap(base, size, _PAGE_NO_CACHE);
+        if (vbase == 0)
+                return;
+        logicalDisplayBase = vbase + offset;
+        boot_text_mapped = 1;
+}
+
+int btext_initialize(struct device_node *np)
+{
+        unsigned int width, height, depth, pitch;
+        unsigned long address = 0;
+        u32 *prop;
+
+        prop = (u32 *)get_property(np, "width", NULL);
+        if (prop == NULL)
+                return -EINVAL;
+        width = *prop;
+        prop = (u32 *)get_property(np, "height", NULL);
+        if (prop == NULL)
+                return -EINVAL;
+        height = *prop;
+        prop = (u32 *)get_property(np, "depth", NULL);
+        if (prop == NULL)
+                return -EINVAL;
+        depth = *prop;
+        pitch = width * ((depth + 7) / 8);
+        prop = (u32 *)get_property(np, "linebytes", NULL);
+        if (prop)
+                pitch = *prop;
+        if (pitch == 1)
+                pitch = 0x1000;
+        prop = (u32 *)get_property(np, "address", NULL);
+        if (prop)
+                address = *prop;
+
+        /* FIXME: Add support for PCI reg properties */
+
+        if (address == 0)
+                return -EINVAL;
+
+        g_loc_X = 0;
+        g_loc_Y = 0;
+        g_max_loc_X = width / 8;
+        g_max_loc_Y = height / 16;
+        logicalDisplayBase = (unsigned char *)address;
+        dispDeviceBase = (unsigned char *)address;
+        dispDeviceRowBytes = pitch;
+        dispDeviceDepth = depth;
+        dispDeviceRect[0] = dispDeviceRect[1] = 0;
+        dispDeviceRect[2] = width;
+        dispDeviceRect[3] = height;
+
+        map_boot_text();
+
+        return 0;
+}
+
+void __init init_boot_display(void)
+{
+        char *name;
+        struct device_node *np = NULL; 
+        int rc = -ENODEV;
+
+        printk("trying to initialize btext ...\n");
+
+        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+        if (name != NULL) {
+                np = of_find_node_by_path(name);
+                if (np != NULL) {
+                        if (strcmp(np->type, "display") != 0) {
+                                printk("boot stdout isn't a display !\n");
+                                of_node_put(np);
+                                np = NULL;
+                        }
+                }
+        }
+        if (np)
+                rc = btext_initialize(np);
+        if (rc == 0)
+                return;
+
+        for (np = NULL; (np = of_find_node_by_type(np, "display"));) {
+                if (get_property(np, "linux,opened", NULL)) {
+                        printk("trying %s ...\n", np->full_name);
+                        rc = btext_initialize(np);
+                        printk("result: %d\n", rc);
+                }
+                if (rc == 0)
+                        return;
+        }
+}
+
+/* Calc the base address of a given point (x,y) */
+static unsigned char * calc_base(int x, int y)
+{
+        unsigned char *base;
+
+        base = logicalDisplayBase;
+        if (base == 0)
+                base = dispDeviceBase;
+        base += (x + dispDeviceRect[0]) * (dispDeviceDepth >> 3);
+        base += (y + dispDeviceRect[1]) * dispDeviceRowBytes;
+        return base;
+}
+
+/* Adjust the display to a new resolution */
+void btext_update_display(unsigned long phys, int width, int height,
+                          int depth, int pitch)
+{
+        if (dispDeviceBase == 0)
+                return;
+
+        /* check it's the same frame buffer (within 256MB) */
+        if ((phys ^ (unsigned long)dispDeviceBase) & 0xf0000000)
+                return;
+
+        dispDeviceBase = (__u8 *) phys;
+        dispDeviceRect[0] = 0;
+        dispDeviceRect[1] = 0;
+        dispDeviceRect[2] = width;
+        dispDeviceRect[3] = height;
+        dispDeviceDepth = depth;
+        dispDeviceRowBytes = pitch;
+        if (boot_text_mapped) {
+                iounmap(logicalDisplayBase);
+                boot_text_mapped = 0;
+        }
+        map_boot_text();
+        g_loc_X = 0;
+        g_loc_Y = 0;
+        g_max_loc_X = width / 8;
+        g_max_loc_Y = height / 16;
+}
+EXPORT_SYMBOL(btext_update_display);
+
+void btext_clearscreen(void)
+{
+        unsigned long *base     = (unsigned long *)calc_base(0, 0);
+        unsigned long width     = ((dispDeviceRect[2] - dispDeviceRect[0]) *
+                                        (dispDeviceDepth >> 3)) >> 3;
+        int i,j;
+
+        for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1]); i++)
+        {
+                unsigned long *ptr = base;
+                for(j=width; j; --j)
+                        *(ptr++) = 0;
+                base += (dispDeviceRowBytes >> 3);
+        }
+}
+
+#ifndef NO_SCROLL
+static void scrollscreen(void)
+{
+        unsigned long *src      = (unsigned long *)calc_base(0,16);
+        unsigned long *dst      = (unsigned long *)calc_base(0,0);
+        unsigned long width     = ((dispDeviceRect[2] - dispDeviceRect[0]) *
+                                   (dispDeviceDepth >> 3)) >> 3;
+        int i,j;
+
+        for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1] - 16); i++)
+        {
+                unsigned long *src_ptr = src;
+                unsigned long *dst_ptr = dst;
+                for(j=width; j; --j)
+                        *(dst_ptr++) = *(src_ptr++);
+                src += (dispDeviceRowBytes >> 3);
+                dst += (dispDeviceRowBytes >> 3);
+        }
+        for (i=0; i<16; i++)
+        {
+                unsigned long *dst_ptr = dst;
+                for(j=width; j; --j)
+                        *(dst_ptr++) = 0;
+                dst += (dispDeviceRowBytes >> 3);
+        }
+}
+#endif /* ndef NO_SCROLL */
+
+void btext_drawchar(char c)
+{
+        int cline = 0;
+#ifdef NO_SCROLL
+        int x;
+#endif
+        if (!boot_text_mapped)
+                return;
+
+        switch (c) {
+        case '\b':
+                if (g_loc_X > 0)
+                        --g_loc_X;
+                break;
+        case '\t':
+                g_loc_X = (g_loc_X & -8) + 8;
+                break;
+        case '\r':
+                g_loc_X = 0;
+                break;
+        case '\n':
+                g_loc_X = 0;
+                g_loc_Y++;
+                cline = 1;
+                break;
+        default:
+                draw_byte(c, g_loc_X++, g_loc_Y);
+        }
+        if (g_loc_X >= g_max_loc_X) {
+                g_loc_X = 0;
+                g_loc_Y++;
+                cline = 1;
+        }
+#ifndef NO_SCROLL
+        while (g_loc_Y >= g_max_loc_Y) {
+                scrollscreen();
+                g_loc_Y--;
+        }
+#else
+        /* wrap around from bottom to top of screen so we don't
+           waste time scrolling each line.  -- paulus. */
+        if (g_loc_Y >= g_max_loc_Y)
+                g_loc_Y = 0;
+        if (cline) {
+                for (x = 0; x < g_max_loc_X; ++x)
+                        draw_byte(' ', x, g_loc_Y);
+        }
+#endif
+}
+
+void btext_drawstring(const char *c)
+{
+        if (!boot_text_mapped)
+                return;
+        while (*c)
+                btext_drawchar(*c++);
+}
+
+void btext_drawhex(unsigned long v)
+{
+        char *hex_table = "0123456789abcdef";
+
+        if (!boot_text_mapped)
+                return;
+#ifdef CONFIG_PPC64
+        btext_drawchar(hex_table[(v >> 60) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 56) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 52) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 48) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 44) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 40) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 36) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 32) & 0x0000000FUL]);
+#endif
+        btext_drawchar(hex_table[(v >> 28) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 24) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 20) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 16) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >> 12) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >>  8) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >>  4) & 0x0000000FUL]);
+        btext_drawchar(hex_table[(v >>  0) & 0x0000000FUL]);
+        btext_drawchar(' ');
+}
+
+static void draw_byte(unsigned char c, long locX, long locY)
+{
+        unsigned char *base     = calc_base(locX << 3, locY << 4);
+        unsigned char *font     = &vga_font[((unsigned int)c) * 16];
+        int rb                  = dispDeviceRowBytes;
+
+        switch(dispDeviceDepth) {
+        case 24:
+        case 32:
+                draw_byte_32(font, (unsigned int *)base, rb);
+                break;
+        case 15:
+        case 16:
+                draw_byte_16(font, (unsigned int *)base, rb);
+                break;
+        case 8:
+                draw_byte_8(font, (unsigned int *)base, rb);
+                break;
+        }
+}
+
+static unsigned int expand_bits_8[16] = {
+        0x00000000,
+        0x000000ff,
+        0x0000ff00,
+        0x0000ffff,
+        0x00ff0000,
+        0x00ff00ff,
+        0x00ffff00,
+        0x00ffffff,
+        0xff000000,
+        0xff0000ff,
+        0xff00ff00,
+        0xff00ffff,
+        0xffff0000,
+        0xffff00ff,
+        0xffffff00,
+        0xffffffff
+};
+
+static unsigned int expand_bits_16[4] = {
+        0x00000000,
+        0x0000ffff,
+        0xffff0000,
+        0xffffffff
+};
+
+
+static void draw_byte_32(unsigned char *font, unsigned int *base, int rb)
+{
+        int l, bits;
+        int fg = 0xFFFFFFFFUL;
+        int bg = 0x00000000UL;
+
+        for (l = 0; l < 16; ++l)
+        {
+                bits = *font++;
+                base[0] = (-(bits >> 7) & fg) ^ bg;
+                base[1] = (-((bits >> 6) & 1) & fg) ^ bg;
+                base[2] = (-((bits >> 5) & 1) & fg) ^ bg;
+                base[3] = (-((bits >> 4) & 1) & fg) ^ bg;
+                base[4] = (-((bits >> 3) & 1) & fg) ^ bg;
+                base[5] = (-((bits >> 2) & 1) & fg) ^ bg;
+                base[6] = (-((bits >> 1) & 1) & fg) ^ bg;
+                base[7] = (-(bits & 1) & fg) ^ bg;
+                base = (unsigned int *) ((char *)base + rb);
+        }
+}
+
+static void draw_byte_16(unsigned char *font, unsigned int *base, int rb)
+{
+        int l, bits;
+        int fg = 0xFFFFFFFFUL;
+        int bg = 0x00000000UL;
+        unsigned int *eb = (int *)expand_bits_16;
+
+        for (l = 0; l < 16; ++l)
+        {
+                bits = *font++;
+                base[0] = (eb[bits >> 6] & fg) ^ bg;
+                base[1] = (eb[(bits >> 4) & 3] & fg) ^ bg;
+                base[2] = (eb[(bits >> 2) & 3] & fg) ^ bg;
+                base[3] = (eb[bits & 3] & fg) ^ bg;
+                base = (unsigned int *) ((char *)base + rb);
+        }
+}
+
+static void draw_byte_8(unsigned char *font, unsigned int *base, int rb)
+{
+        int l, bits;
+        int fg = 0x0F0F0F0FUL;
+        int bg = 0x00000000UL;
+        unsigned int *eb = (int *)expand_bits_8;
+
+        for (l = 0; l < 16; ++l)
+        {
+                bits = *font++;
+                base[0] = (eb[bits >> 4] & fg) ^ bg;
+                base[1] = (eb[bits & 0xf] & fg) ^ bg;
+                base = (unsigned int *) ((char *)base + rb);
+        }
+}
+
+static unsigned char vga_font[cmapsz] = {
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x81, 0xa5, 0x81, 0x81, 0xbd,
+0x99, 0x81, 0x81, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xff,
+0xdb, 0xff, 0xff, 0xc3, 0xe7, 0xff, 0xff, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x6c, 0xfe, 0xfe, 0xfe, 0xfe, 0x7c, 0x38, 0x10,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x7c, 0xfe,
+0x7c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
+0x3c, 0x3c, 0xe7, 0xe7, 0xe7, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0x7e, 0x18, 0x18, 0x3c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c,
+0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66, 0x42, 0x42, 0x66, 0x3c, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3, 0x99, 0xbd,
+0xbd, 0x99, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x1e, 0x0e,
+0x1a, 0x32, 0x78, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x3c, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x33, 0x3f, 0x30, 0x30, 0x30,
+0x30, 0x70, 0xf0, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x63,
+0x7f, 0x63, 0x63, 0x63, 0x63, 0x67, 0xe7, 0xe6, 0xc0, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x18, 0x18, 0xdb, 0x3c, 0xe7, 0x3c, 0xdb, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfe, 0xf8,
+0xf0, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x06, 0x0e,
+0x1e, 0x3e, 0xfe, 0x3e, 0x1e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
+0x66, 0x00, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xdb,
+0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x1b, 0x1b, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x7c, 0xc6, 0x60, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x0c, 0xc6,
+0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0xfe, 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c,
+0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x7e, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x18, 0x0c, 0xfe, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x60, 0xfe, 0x60, 0x30, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0,
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+0x7e, 0xd8, 0xdc, 0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x6c,
+0xcc, 0xcc, 0xfe, 0xcc, 0xcc, 0xcc, 0xcc, 0xce, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x10, 0x38, 0x6c, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0x00, 0x00, 0x7c, 0xc6, 0xc6,
+0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x30, 0x18,
+0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x30, 0x78, 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x76,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x30, 0x18, 0x00, 0xcc, 0xcc, 0xcc,
+0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0x00,
+0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x0c, 0x78, 0x00,
+0x00, 0xc6, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e,
+0xc3, 0xc0, 0xc0, 0xc0, 0xc3, 0x7e, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x38, 0x6c, 0x64, 0x60, 0xf0, 0x60, 0x60, 0x60, 0x60, 0xe6, 0xfc,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0x66, 0x3c, 0x18, 0xff, 0x18,
+0xff, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x66, 0x66,
+0x7c, 0x62, 0x66, 0x6f, 0x66, 0x66, 0x66, 0xf3, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x0e, 0x1b, 0x18, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18,
+0xd8, 0x70, 0x00, 0x00, 0x00, 0x18, 0x30, 0x60, 0x00, 0x78, 0x0c, 0x7c,
+0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30,
+0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x18, 0x30, 0x60, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x30, 0x60, 0x00, 0xcc, 0xcc, 0xcc,
+0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc,
+0x00, 0xdc, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00,
+0x76, 0xdc, 0x00, 0xc6, 0xe6, 0xf6, 0xfe, 0xde, 0xce, 0xc6, 0xc6, 0xc6,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x6c, 0x6c, 0x3e, 0x00, 0x7e, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x6c,
+0x38, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x30, 0x30, 0x00, 0x30, 0x30, 0x60, 0xc0, 0xc6, 0xc6, 0x7c,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc0,
+0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xfe, 0x06, 0x06, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xc0, 0xc0, 0xc2, 0xc6, 0xcc, 0x18, 0x30, 0x60, 0xce, 0x9b, 0x06,
+0x0c, 0x1f, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0xc2, 0xc6, 0xcc, 0x18, 0x30,
+0x66, 0xce, 0x96, 0x3e, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18,
+0x00, 0x18, 0x18, 0x18, 0x3c, 0x3c, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x6c, 0xd8, 0x6c, 0x36, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd8, 0x6c, 0x36,
+0x6c, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x44, 0x11, 0x44,
+0x11, 0x44, 0x11, 0x44, 0x11, 0x44, 0x11, 0x44, 0x11, 0x44, 0x11, 0x44,
+0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa,
+0x55, 0xaa, 0x55, 0xaa, 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77,
+0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0x18, 0xf8,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0xf6, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x18, 0xf8,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36,
+0x36, 0xf6, 0x06, 0xf6, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x06, 0xf6,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x36, 0xf6, 0x06, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xfe, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0x18, 0xf8,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0xf8, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x18, 0x1f, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x37,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x37, 0x30, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x30, 0x37, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xf7, 0x00, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xff, 0x00, 0xf7, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x37, 0x30, 0x37, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x36, 0x36, 0x36,
+0x36, 0xf7, 0x00, 0xf7, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xff,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xff, 0x00, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x3f,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x1f, 0x18, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x18, 0x1f, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f,
+0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x36, 0x36, 0x36, 0xff, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0x18, 0xff, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff,
+0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf0, 0xf0, 0xf0,
+0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
+0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+0x0f, 0x0f, 0x0f, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x76, 0xdc, 0xd8, 0xd8, 0xd8, 0xdc, 0x76, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xd8, 0xcc, 0xc6, 0xc6, 0xc6, 0xcc,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0xc6, 0xc0, 0xc0, 0xc0,
+0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0xfe, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0xfe, 0xc6, 0x60, 0x30, 0x18, 0x30, 0x60, 0xc6, 0xfe,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xd8, 0xd8,
+0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x66, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xc0, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x18, 0x3c, 0x66, 0x66,
+0x66, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38,
+0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x6c, 0x6c, 0x6c, 0x6c, 0xee,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x30, 0x18, 0x0c, 0x3e, 0x66,
+0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x7e, 0xdb, 0xdb, 0xdb, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x03, 0x06, 0x7e, 0xdb, 0xdb, 0xf3, 0x7e, 0x60, 0xc0,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x30, 0x60, 0x60, 0x7c, 0x60,
+0x60, 0x60, 0x30, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c,
+0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18,
+0x18, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
+0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x00, 0x7e,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x1b, 0x1b, 0x1b, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+0x18, 0x18, 0x18, 0x18, 0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x7e, 0x00, 0x18, 0x18, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00,
+0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x6c,
+0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x0c, 0x0c,
+0x0c, 0x0c, 0x0c, 0xec, 0x6c, 0x6c, 0x3c, 0x1c, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xd8, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0xd8, 0x30, 0x60, 0xc8, 0xf8, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00,
+};
diff --git a/arch/ppc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 6b76cf58d9e0..b91345fa0805 100644
--- a/arch/ppc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1,8 +1,9 @@
 /*
- *  arch/ppc/kernel/cputable.c
- *
  *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
  *
+ *  Modifications for ppc64:
+ *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
+ *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License
  *  as published by the Free Software Foundation; either version
@@ -14,96 +15,302 @@
 #include <linux/sched.h>
 #include <linux/threads.h>
 #include <linux/init.h>
-#include <asm/cputable.h>
+#include <linux/module.h>
 
-struct cpu_spec* cur_cpu_spec[NR_CPUS];
+#include <asm/oprofile_impl.h>
+#include <asm/cputable.h>
 
-extern void __setup_cpu_601(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_603(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_604(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_750(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_750cx(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_750fx(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_7400(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_7410(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_745x(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_power3(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_power4(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_ppc970(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-extern void __setup_cpu_generic(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
+struct cpu_spec* cur_cpu_spec = NULL;
+EXPORT_SYMBOL(cur_cpu_spec);
 
-#define CLASSIC_PPC (!defined(CONFIG_8xx) && !defined(CONFIG_4xx) && \
-                     !defined(CONFIG_POWER3) && !defined(CONFIG_POWER4) && \
-                     !defined(CONFIG_BOOKE))
+/* NOTE:
+ * Unlike ppc32, ppc64 will only call this once for the boot CPU, it's
+ * the responsibility of the appropriate CPU save/restore functions to
+ * eventually copy these settings over. Those save/restore aren't yet
+ * part of the cputable though. That has to be fixed for both ppc32
+ * and ppc64
+ */
+#ifdef CONFIG_PPC64
+extern void __setup_cpu_power3(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_power4(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_be(unsigned long offset, struct cpu_spec* spec);
+#else
+extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_750cx(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_750fx(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_7400(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_7410(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
+#endif /* CONFIG_PPC32 */
+extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 
 /* This table only contains "desktop" CPUs, it need to be filled with embedded
  * ones as well...
  */
-#define COMMON_PPC      (PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \
-                         PPC_FEATURE_HAS_MMU)
+#define COMMON_USER             (PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \
+                                 PPC_FEATURE_HAS_MMU)
+#define COMMON_USER_PPC64       (COMMON_USER | PPC_FEATURE_64)
 
-/* We only set the altivec features if the kernel was compiled with altivec
- * support
- */
-#ifdef CONFIG_ALTIVEC
-#define CPU_FTR_ALTIVEC_COMP            CPU_FTR_ALTIVEC
-#define PPC_FEATURE_ALTIVEC_COMP        PPC_FEATURE_HAS_ALTIVEC
-#else
-#define CPU_FTR_ALTIVEC_COMP            0
-#define PPC_FEATURE_ALTIVEC_COMP        0
-#endif
 
 /* We only set the spe features if the kernel was compiled with
  * spe support
  */
 #ifdef CONFIG_SPE
-#define PPC_FEATURE_SPE_COMP            PPC_FEATURE_HAS_SPE
+#define PPC_FEATURE_SPE_COMP    PPC_FEATURE_HAS_SPE
 #else
-#define PPC_FEATURE_SPE_COMP            0
+#define PPC_FEATURE_SPE_COMP    0
 #endif
 
-/* We need to mark all pages as being coherent if we're SMP or we
- * have a 74[45]x and an MPC107 host bridge.
- */
-#if defined(CONFIG_SMP) || defined(CONFIG_MPC10X_BRIDGE)
-#define CPU_FTR_COMMON                  CPU_FTR_NEED_COHERENT
-#else
-#define CPU_FTR_COMMON                  0
+struct cpu_spec cpu_specs[] = {
+#ifdef CONFIG_PPC64
+        {       /* Power3 */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00400000,
+                .cpu_name               = "POWER3 (630)",
+                .cpu_features           = CPU_FTRS_POWER3,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power3",
+                .oprofile_model         = &op_model_rs64,
 #endif
-
-/* The powersave features NAP & DOZE seems to confuse BDI when
-   debugging. So if a BDI is used, disable theses
- */
-#ifndef CONFIG_BDI_SWITCH
-#define CPU_FTR_MAYBE_CAN_DOZE  CPU_FTR_CAN_DOZE
-#define CPU_FTR_MAYBE_CAN_NAP   CPU_FTR_CAN_NAP
+        },
+        {       /* Power3+ */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00410000,
+                .cpu_name               = "POWER3 (630+)",
+                .cpu_features           = CPU_FTRS_POWER3,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power3",
+                .oprofile_model         = &op_model_rs64,
+#endif
+        },
+        {       /* Northstar */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00330000,
+                .cpu_name               = "RS64-II (northstar)",
+                .cpu_features           = CPU_FTRS_RS64,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
+        },
+        {       /* Pulsar */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00340000,
+                .cpu_name               = "RS64-III (pulsar)",
+                .cpu_features           = CPU_FTRS_RS64,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
+        },
+        {       /* I-star */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00360000,
+                .cpu_name               = "RS64-III (icestar)",
+                .cpu_features           = CPU_FTRS_RS64,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
+        },
+        {       /* S-star */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00370000,
+                .cpu_name               = "RS64-IV (sstar)",
+                .cpu_features           = CPU_FTRS_RS64,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
+        },
+        {       /* Power4 */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00350000,
+                .cpu_name               = "POWER4 (gp)",
+                .cpu_features           = CPU_FTRS_POWER4,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power4",
+                .oprofile_model         = &op_model_rs64,
+#endif
+        },
+        {       /* Power4+ */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00380000,
+                .cpu_name               = "POWER4+ (gq)",
+                .cpu_features           = CPU_FTRS_POWER4,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power4",
+                .oprofile_model         = &op_model_power4,
+#endif
+        },
+        {       /* PPC970 */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00390000,
+                .cpu_name               = "PPC970",
+                .cpu_features           = CPU_FTRS_PPC970,
+                .cpu_user_features      = COMMON_USER_PPC64 |
+                        PPC_FEATURE_HAS_ALTIVEC_COMP,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_ppc970,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/970",
+                .oprofile_model         = &op_model_power4,
+#endif
+        },
+#endif /* CONFIG_PPC64 */
+#if defined(CONFIG_PPC64) || defined(CONFIG_POWER4)
+        {       /* PPC970FX */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x003c0000,
+                .cpu_name               = "PPC970FX",
+#ifdef CONFIG_PPC32
+                .cpu_features           = CPU_FTRS_970_32,
 #else
-#define CPU_FTR_MAYBE_CAN_DOZE  0
-#define CPU_FTR_MAYBE_CAN_NAP   0
+                .cpu_features           = CPU_FTRS_PPC970,
 #endif
-
-struct cpu_spec cpu_specs[] = {
+                .cpu_user_features      = COMMON_USER_PPC64 |
+                        PPC_FEATURE_HAS_ALTIVEC_COMP,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 8,
+                .cpu_setup              = __setup_cpu_ppc970,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/970",
+                .oprofile_model         = &op_model_power4,
+#endif
+        },
+#endif /* defined(CONFIG_PPC64) || defined(CONFIG_POWER4) */
+#ifdef CONFIG_PPC64
+        {       /* PPC970MP */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00440000,
+                .cpu_name               = "PPC970MP",
+                .cpu_features           = CPU_FTRS_PPC970,
+                .cpu_user_features      = COMMON_USER_PPC64 |
+                        PPC_FEATURE_HAS_ALTIVEC_COMP,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .cpu_setup              = __setup_cpu_ppc970,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/970",
+                .oprofile_model         = &op_model_power4,
+#endif
+        },
+        {       /* Power5 */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x003a0000,
+                .cpu_name               = "POWER5 (gr)",
+                .cpu_features           = CPU_FTRS_POWER5,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 6,
+                .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power5",
+                .oprofile_model         = &op_model_power4,
+#endif
+        },
+        {       /* Power5 */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x003b0000,
+                .cpu_name               = "POWER5 (gs)",
+                .cpu_features           = CPU_FTRS_POWER5,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 6,
+                .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power5",
+                .oprofile_model         = &op_model_power4,
+#endif
+        },
+        {       /* BE DD1.x */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00700000,
+                .cpu_name               = "Cell Broadband Engine",
+                .cpu_features           = CPU_FTRS_CELL,
+                .cpu_user_features      = COMMON_USER_PPC64 |
+                        PPC_FEATURE_HAS_ALTIVEC_COMP,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .cpu_setup              = __setup_cpu_be,
+        },
+        {       /* default match */
+                .pvr_mask               = 0x00000000,
+                .pvr_value              = 0x00000000,
+                .cpu_name               = "POWER4 (compatible)",
+                .cpu_features           = CPU_FTRS_COMPATIBLE,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 6,
+                .cpu_setup              = __setup_cpu_power4,
+        }
+#endif  /* CONFIG_PPC64 */
+#ifdef CONFIG_PPC32
 #if CLASSIC_PPC
-        {       /* 601 */
+        {       /* 601 */
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00010000,
                 .cpu_name               = "601",
-                .cpu_features           = CPU_FTR_COMMON | CPU_FTR_601 |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_601_INSTR |
+                .cpu_features           = CPU_FTRS_PPC601,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_601_INSTR |
                         PPC_FEATURE_UNIFIED_CACHE | PPC_FEATURE_NO_TB,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
-                .cpu_setup              = __setup_cpu_601
         },
         {       /* 603 */
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00030000,
                 .cpu_name               = "603",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_603,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_603
@@ -112,10 +319,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00060000,
                 .cpu_name               = "603e",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_603,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_603
@@ -124,10 +329,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00070000,
                 .cpu_name               = "603ev",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_603,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_603
@@ -136,10 +339,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00040000,
                 .cpu_name               = "604",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_604_PERF_MON | CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_604,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 2,
@@ -149,10 +350,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xfffff000,
                 .pvr_value              = 0x00090000,
                 .cpu_name               = "604e",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_604_PERF_MON | CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_604,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -162,10 +361,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00090000,
                 .cpu_name               = "604r",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_604_PERF_MON | CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_604,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -175,10 +372,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x000a0000,
                 .cpu_name               = "604ev",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_604_PERF_MON | CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_604,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -188,11 +383,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x00084202,
                 .cpu_name               = "740/750",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_740_NOTAU,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -202,11 +394,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xfffffff0,
                 .pvr_value              = 0x00080100,
                 .cpu_name               = "750CX",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -216,11 +405,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xfffffff0,
                 .pvr_value              = 0x00082200,
                 .cpu_name               = "750CX",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -230,11 +416,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xfffffff0,
                 .pvr_value              = 0x00082210,
                 .cpu_name               = "750CXe",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -244,11 +427,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x00083214,
                 .cpu_name               = "750CXe",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -258,11 +438,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xfffff000,
                 .pvr_value              = 0x00083000,
                 .cpu_name               = "745/755",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -272,12 +449,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffff00,
                 .pvr_value              = 0x70000100,
                 .cpu_name               = "750FX",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
-                        CPU_FTR_DUAL_PLL_750FX | CPU_FTR_NO_DPM,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750FX1,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -287,12 +460,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x70000200,
                 .cpu_name               = "750FX",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
-                        CPU_FTR_NO_DPM,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750FX2,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -302,12 +471,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x70000000,
                 .cpu_name               = "750FX",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
-                        CPU_FTR_DUAL_PLL_750FX | CPU_FTR_HAS_HIGH_BATS,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750FX,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -317,12 +482,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x70020000,
                 .cpu_name               = "750GX",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB |
-                        CPU_FTR_L2CR | CPU_FTR_TAU | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_DUAL_PLL_750FX |
-                        CPU_FTR_HAS_HIGH_BATS,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_750GX,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -332,11 +493,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00080000,
                 .cpu_name               = "740/750",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_740,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -346,11 +504,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x000c1101,
                 .cpu_name               = "7400 (1.1)",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7400_NOTAU,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -360,12 +515,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x000c0000,
                 .cpu_name               = "7400",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7400,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -375,12 +526,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x800c0000,
                 .cpu_name               = "7410",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7400,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
@@ -390,12 +537,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x80000200,
                 .cpu_name               = "7450",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7450_20,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -405,14 +548,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x80000201,
                 .cpu_name               = "7450",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_L3_DISABLE_NAP |
-                        CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7450_21,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -422,13 +559,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80000000,
                 .cpu_name               = "7450",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7450_23,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -438,12 +570,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffff00,
                 .pvr_value              = 0x80010100,
                 .cpu_name               = "7455",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_HAS_HIGH_BATS | CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7455_1,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -453,14 +581,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x80010200,
                 .cpu_name               = "7455",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_L3_DISABLE_NAP |
-                        CPU_FTR_NEED_COHERENT | CPU_FTR_HAS_HIGH_BATS,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7455_20,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -470,14 +592,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80010000,
                 .cpu_name               = "7455",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
-                        CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7455,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -487,14 +603,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x80020100,
                 .cpu_name               = "7447/7457",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
-                        CPU_FTR_NEED_COHERENT | CPU_FTR_NO_BTIC,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7447_10,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -504,14 +614,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffffff,
                 .pvr_value              = 0x80020101,
                 .cpu_name               = "7447/7457",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
-                        CPU_FTR_NEED_COHERENT | CPU_FTR_NO_BTIC,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7447_10,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -521,14 +625,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80020000,
                 .cpu_name               = "7447/7457",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
-                        CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
-                        CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
-                        CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7447,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -538,13 +636,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80030000,
                 .cpu_name               = "7447A",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_SPEC7450 | CPU_FTR_NAP_DISABLE_L2_PR |
-                        CPU_FTR_HAS_HIGH_BATS | CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7447A,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -554,13 +647,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80040000,
                 .cpu_name               = "7448",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_SPEC7450 | CPU_FTR_NAP_DISABLE_L2_PR |
-                        CPU_FTR_HAS_HIGH_BATS | CPU_FTR_NEED_COHERENT,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_ALTIVEC_COMP,
+                .cpu_features           = CPU_FTRS_7447A,
+                .cpu_user_features      = COMMON_USER | PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .num_pmcs               = 6,
@@ -570,10 +658,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0x7fff0000,
                 .pvr_value              = 0x00810000,
                 .cpu_name               = "82xx",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
-                        CPU_FTR_USE_TB,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_82XX,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_603
@@ -582,10 +668,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0x7fff0000,
                 .pvr_value              = 0x00820000,
                 .cpu_name               = "G2_LE",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_G2_LE,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_603
@@ -594,10 +678,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0x7fff0000,
                 .pvr_value              = 0x00830000,
                 .cpu_name               = "e300",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB |
-                        CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_E300,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
                 .cpu_setup              = __setup_cpu_603
@@ -606,114 +688,12 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0x00000000,
                 .pvr_value              = 0x00000000,
                 .cpu_name               = "(generic PPC)",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC,
+                .cpu_features           = CPU_FTRS_CLASSIC32,
+                .cpu_user_features      = COMMON_USER,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
-                .cpu_setup              = __setup_cpu_generic
         },
 #endif /* CLASSIC_PPC */
-#ifdef CONFIG_PPC64BRIDGE
-        {       /* Power3 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00400000,
-                .cpu_name               = "Power3 (630)",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3
-        },
-        {       /* Power3+ */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00410000,
-                .cpu_name               = "Power3 (630+)",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3
-        },
-        {       /* I-star */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00360000,
-                .cpu_name               = "I-star",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3
-        },
-        {       /* S-star */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00370000,
-                .cpu_name               = "S-star",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3
-        },
-#endif /* CONFIG_PPC64BRIDGE */
-#ifdef CONFIG_POWER4
-        {       /* Power4 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00350000,
-                .cpu_name               = "Power4",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power4
-        },
-        {       /* PPC970 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00390000,
-                .cpu_name               = "PPC970",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64 |
-                        PPC_FEATURE_ALTIVEC_COMP,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_ppc970
-        },
-        {       /* PPC970FX */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x003c0000,
-                .cpu_name               = "PPC970FX",
-                .cpu_features           = CPU_FTR_COMMON |
-                        CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
-                        CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_ALTIVEC_COMP | CPU_FTR_MAYBE_CAN_NAP,
-                .cpu_user_features      = COMMON_PPC | PPC_FEATURE_64 |
-                        PPC_FEATURE_ALTIVEC_COMP,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_ppc970
-        },
-#endif /* CONFIG_POWER4 */
 #ifdef CONFIG_8xx
         {       /* 8xx */
                 .pvr_mask               = 0xffff0000,
@@ -721,8 +701,7 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "8xx",
                 /* CPU_FTR_MAYBE_CAN_DOZE is possible,
                  * if the 8xx code is there.... */
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_8XX,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 16,
                 .dcache_bsize           = 16,
@@ -733,8 +712,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffff00,
                 .pvr_value              = 0x00200200,
                 .cpu_name               = "403GC",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 16,
                 .dcache_bsize           = 16,
@@ -743,8 +721,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffffff00,
                 .pvr_value              = 0x00201400,
                 .cpu_name               = "403GCX",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_NO_TB,
                 .icache_bsize           = 16,
@@ -754,8 +731,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00200000,
                 .cpu_name               = "403G ??",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 16,
                 .dcache_bsize           = 16,
@@ -764,8 +740,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x40110000,
                 .cpu_name               = "405GP",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -775,8 +750,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x40130000,
                 .cpu_name               = "STB03xxx",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -786,8 +760,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x41810000,
                 .cpu_name               = "STB04xxx",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -797,8 +770,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x41610000,
                 .cpu_name               = "NP405L",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -808,8 +780,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x40B10000,
                 .cpu_name               = "NP4GS3",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -819,8 +790,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x41410000,
                 .cpu_name               = "NP405H",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -830,8 +800,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x50910000,
                 .cpu_name               = "405GPr",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -841,8 +810,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x51510000,
                 .cpu_name               = "STBx25xx",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -852,8 +820,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x41F10000,
                 .cpu_name               = "405LP",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
@@ -862,8 +829,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x20010000,
                 .cpu_name               = "Virtex-II Pro",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -873,8 +839,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x51210000,
                 .cpu_name               = "405EP",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_40X,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
                 .icache_bsize           = 32,
@@ -887,9 +852,8 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x40000850,
                 .cpu_name               = "440EP Rev. A",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
-                .cpu_user_features      = COMMON_PPC, /* 440EP has an FPU */
+                .cpu_features           = CPU_FTRS_44X,
+                .cpu_user_features      = COMMON_USER, /* 440EP has an FPU */
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
         },
@@ -897,28 +861,25 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x400008d3,
                 .cpu_name               = "440EP Rev. B",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
-                .cpu_user_features      = COMMON_PPC, /* 440EP has an FPU */
+                .cpu_features           = CPU_FTRS_44X,
+                .cpu_user_features      = COMMON_USER, /* 440EP has an FPU */
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
         },
-        {       /* 440GP Rev. B */
+        {       /* 440GP Rev. B */
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x40000440,
                 .cpu_name               = "440GP Rev. B",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
         },
-        {       /* 440GP Rev. C */
+        {       /* 440GP Rev. C */
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x40000481,
                 .cpu_name               = "440GP Rev. C",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
@@ -927,8 +888,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x50000850,
                 .cpu_name               = "440GX Rev. A",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
@@ -937,8 +897,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x50000851,
                 .cpu_name               = "440GX Rev. B",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
@@ -947,8 +906,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x50000892,
                 .cpu_name               = "440GX Rev. C",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
@@ -957,8 +915,7 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xf0000fff,
                 .pvr_value              = 0x50000894,
                 .cpu_name               = "440GX Rev. F",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
@@ -967,44 +924,42 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0xff000fff,
                 .pvr_value              = 0x53000891,
                 .cpu_name               = "440SP Rev. A",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_44X,
                 .cpu_user_features      = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
         },
 #endif /* CONFIG_44x */
 #ifdef CONFIG_FSL_BOOKE
-        {       /* e200z5 */
+        {       /* e200z5 */
                 .pvr_mask               = 0xfff00000,
                 .pvr_value              = 0x81000000,
                 .cpu_name               = "e200z5",
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
-                .cpu_features           = CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_E200,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_EFP_SINGLE |
                         PPC_FEATURE_UNIFIED_CACHE,
                 .dcache_bsize           = 32,
         },
-        {       /* e200z6 */
+        {       /* e200z6 */
                 .pvr_mask               = 0xfff00000,
                 .pvr_value              = 0x81100000,
                 .cpu_name               = "e200z6",
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
-                .cpu_features           = CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_E200,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_SPE_COMP |
                         PPC_FEATURE_HAS_EFP_SINGLE |
                         PPC_FEATURE_UNIFIED_CACHE,
                 .dcache_bsize           = 32,
         },
-        {       /* e500 */
+        {       /* e500 */
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80200000,
                 .cpu_name               = "e500",
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB,
+                .cpu_features           = CPU_FTRS_E500,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_SPE_COMP |
                         PPC_FEATURE_HAS_EFP_SINGLE,
@@ -1012,13 +967,12 @@ struct cpu_spec	cpu_specs[] = {
                 .dcache_bsize           = 32,
                 .num_pmcs               = 4,
         },
-        {       /* e500v2 */
+        {       /* e500v2 */
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x80210000,
                 .cpu_name               = "e500v2",
                 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_BIG_PHYS,
+                .cpu_features           = CPU_FTRS_E500_2,
                 .cpu_user_features      = PPC_FEATURE_32 |
                         PPC_FEATURE_HAS_MMU | PPC_FEATURE_SPE_COMP |
                         PPC_FEATURE_HAS_EFP_SINGLE | PPC_FEATURE_HAS_EFP_DOUBLE,
@@ -1032,10 +986,11 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_mask               = 0x00000000,
                 .pvr_value              = 0x00000000,
                 .cpu_name               = "(generic PPC)",
-                .cpu_features           = CPU_FTR_COMMON,
+                .cpu_features           = CPU_FTRS_GENERIC_32,
                 .cpu_user_features      = PPC_FEATURE_32,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
         }
 #endif /* !CLASSIC_PPC */
+#endif /* CONFIG_PPC32 */
 };
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
new file mode 100644
index 000000000000..2e99ae41723c
--- /dev/null
+++ b/arch/powerpc/kernel/entry_32.S
@@ -0,0 +1,1000 @@
+/*
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *  Rewritten by Cort Dougan (cort@fsmlabs.com) for PReP
+ *    Copyright (C) 1996 Cort Dougan <cort@fsmlabs.com>
+ *  Adapted for Power Macintosh by Paul Mackerras.
+ *  Low-level exception handlers and MMU support
+ *  rewritten by Paul Mackerras.
+ *    Copyright (C) 1996 Paul Mackerras.
+ *  MPC8xx modifications Copyright (C) 1997 Dan Malek (dmalek@jlc.net).
+ *
+ *  This file contains the system call entry code, context switch
+ *  code, and exception/interrupt return code for PowerPC.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sys.h>
+#include <linux/threads.h>
+#include <asm/reg.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+#undef SHOW_SYSCALLS
+#undef SHOW_SYSCALLS_TASK
+
+/*
+ * MSR_KERNEL is > 0x10000 on 4xx/Book-E since it include MSR_CE.
+ */
+#if MSR_KERNEL >= 0x10000
+#define LOAD_MSR_KERNEL(r, x)   lis r,(x)@h; ori r,r,(x)@l
+#else
+#define LOAD_MSR_KERNEL(r, x)   li r,(x)
+#endif
+
+#ifdef CONFIG_BOOKE
+#include "head_booke.h"
+#define TRANSFER_TO_HANDLER_EXC_LEVEL(exc_level)        \
+        mtspr   exc_level##_SPRG,r8;                    \
+        BOOKE_LOAD_EXC_LEVEL_STACK(exc_level);          \
+        lwz     r0,GPR10-INT_FRAME_SIZE(r8);            \
+        stw     r0,GPR10(r11);                          \
+        lwz     r0,GPR11-INT_FRAME_SIZE(r8);            \
+        stw     r0,GPR11(r11);                          \
+        mfspr   r8,exc_level##_SPRG
+
+        .globl  mcheck_transfer_to_handler
+mcheck_transfer_to_handler:
+        TRANSFER_TO_HANDLER_EXC_LEVEL(MCHECK)
+        b       transfer_to_handler_full
+
+        .globl  debug_transfer_to_handler
+debug_transfer_to_handler:
+        TRANSFER_TO_HANDLER_EXC_LEVEL(DEBUG)
+        b       transfer_to_handler_full
+
+        .globl  crit_transfer_to_handler
+crit_transfer_to_handler:
+        TRANSFER_TO_HANDLER_EXC_LEVEL(CRIT)
+        /* fall through */
+#endif
+
+#ifdef CONFIG_40x
+        .globl  crit_transfer_to_handler
+crit_transfer_to_handler:
+        lwz     r0,crit_r10@l(0)
+        stw     r0,GPR10(r11)
+        lwz     r0,crit_r11@l(0)
+        stw     r0,GPR11(r11)
+        /* fall through */
+#endif
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception, turning
+ * on address translation.
+ * Note that we rely on the caller having set cr0.eq iff the exception
+ * occurred in kernel mode (i.e. MSR:PR = 0).
+ */
+        .globl  transfer_to_handler_full
+transfer_to_handler_full:
+        SAVE_NVGPRS(r11)
+        /* fall through */
+
+        .globl  transfer_to_handler
+transfer_to_handler:
+        stw     r2,GPR2(r11)
+        stw     r12,_NIP(r11)
+        stw     r9,_MSR(r11)
+        andi.   r2,r9,MSR_PR
+        mfctr   r12
+        mfspr   r2,SPRN_XER
+        stw     r12,_CTR(r11)
+        stw     r2,_XER(r11)
+        mfspr   r12,SPRN_SPRG3
+        addi    r2,r12,-THREAD
+        tovirt(r2,r2)                   /* set r2 to current */
+        beq     2f                      /* if from user, fix up THREAD.regs */
+        addi    r11,r1,STACK_FRAME_OVERHEAD
+        stw     r11,PT_REGS(r12)
+#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
+        /* Check to see if the dbcr0 register is set up to debug.  Use the
+           single-step bit to do this. */
+        lwz     r12,THREAD_DBCR0(r12)
+        andis.  r12,r12,DBCR0_IC@h
+        beq+    3f
+        /* From user and task is ptraced - load up global dbcr0 */
+        li      r12,-1                  /* clear all pending debug events */
+        mtspr   SPRN_DBSR,r12
+        lis     r11,global_dbcr0@ha
+        tophys(r11,r11)
+        addi    r11,r11,global_dbcr0@l
+        lwz     r12,0(r11)
+        mtspr   SPRN_DBCR0,r12
+        lwz     r12,4(r11)
+        addi    r12,r12,-1
+        stw     r12,4(r11)
+#endif
+        b       3f
+2:      /* if from kernel, check interrupted DOZE/NAP mode and
+         * check for stack overflow
+         */
+#ifdef CONFIG_6xx
+        mfspr   r11,SPRN_HID0
+        mtcr    r11
+BEGIN_FTR_SECTION
+        bt-     8,power_save_6xx_restore        /* Check DOZE */
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_DOZE)
+BEGIN_FTR_SECTION
+        bt-     9,power_save_6xx_restore        /* Check NAP */
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
+#endif /* CONFIG_6xx */
+        .globl transfer_to_handler_cont
+transfer_to_handler_cont:
+        lwz     r11,THREAD_INFO-THREAD(r12)
+        cmplw   r1,r11                  /* if r1 <= current->thread_info */
+        ble-    stack_ovf               /* then the kernel stack overflowed */
+3:
+        mflr    r9
+        lwz     r11,0(r9)               /* virtual address of handler */
+        lwz     r9,4(r9)                /* where to go when done */
+        FIX_SRR1(r10,r12)
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r10
+        mtlr    r9
+        SYNC
+        RFI                             /* jump to handler, enable MMU */
+
+/*
+ * On kernel stack overflow, load up an initial stack pointer
+ * and call StackOverflow(regs), which should not return.
+ */
+stack_ovf:
+        /* sometimes we use a statically-allocated stack, which is OK. */
+        lis     r11,_end@h
+        ori     r11,r11,_end@l
+        cmplw   r1,r11
+        ble     3b                      /* r1 <= &_end is OK */
+        SAVE_NVGPRS(r11)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        lis     r1,init_thread_union@ha
+        addi    r1,r1,init_thread_union@l
+        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
+        lis     r9,StackOverflow@ha
+        addi    r9,r9,StackOverflow@l
+        LOAD_MSR_KERNEL(r10,MSR_KERNEL)
+        FIX_SRR1(r10,r12)
+        mtspr   SPRN_SRR0,r9
+        mtspr   SPRN_SRR1,r10
+        SYNC
+        RFI
+
+/*
+ * Handle a system call.
+ */
+        .stabs  "arch/powerpc/kernel/",N_SO,0,0,0f
+        .stabs  "entry_32.S",N_SO,0,0,0f
+0:
+
+_GLOBAL(DoSyscall)
+        stw     r0,THREAD+LAST_SYSCALL(r2)
+        stw     r3,ORIG_GPR3(r1)
+        li      r12,0
+        stw     r12,RESULT(r1)
+        lwz     r11,_CCR(r1)    /* Clear SO bit in CR */
+        rlwinm  r11,r11,0,4,2
+        stw     r11,_CCR(r1)
+#ifdef SHOW_SYSCALLS
+        bl      do_show_syscall
+#endif /* SHOW_SYSCALLS */
+        rlwinm  r10,r1,0,0,(31-THREAD_SHIFT)    /* current_thread_info() */
+        li      r11,0
+        stb     r11,TI_SC_NOERR(r10)
+        lwz     r11,TI_FLAGS(r10)
+        andi.   r11,r11,_TIF_SYSCALL_T_OR_A
+        bne-    syscall_dotrace
+syscall_dotrace_cont:
+        cmplwi  0,r0,NR_syscalls
+        lis     r10,sys_call_table@h
+        ori     r10,r10,sys_call_table@l
+        slwi    r0,r0,2
+        bge-    66f
+        lwzx    r10,r10,r0      /* Fetch system call handler [ptr] */
+        mtlr    r10
+        addi    r9,r1,STACK_FRAME_OVERHEAD
+        PPC440EP_ERR42
+        blrl                    /* Call handler */
+        .globl  ret_from_syscall
+ret_from_syscall:
+#ifdef SHOW_SYSCALLS
+        bl      do_show_syscall_exit
+#endif
+        mr      r6,r3
+        li      r11,-_LAST_ERRNO
+        cmplw   0,r3,r11
+        rlwinm  r12,r1,0,0,(31-THREAD_SHIFT)    /* current_thread_info() */
+        blt+    30f
+        lbz     r11,TI_SC_NOERR(r12)
+        cmpwi   r11,0
+        bne     30f
+        neg     r3,r3
+        lwz     r10,_CCR(r1)    /* Set SO bit in CR */
+        oris    r10,r10,0x1000
+        stw     r10,_CCR(r1)
+
+        /* disable interrupts so current_thread_info()->flags can't change */
+30:     LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
+        SYNC
+        MTMSRD(r10)
+        lwz     r9,TI_FLAGS(r12)
+        andi.   r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED)
+        bne-    syscall_exit_work
+syscall_exit_cont:
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+        /* If the process has its own DBCR0 value, load it up.  The single
+           step bit tells us that dbcr0 should be loaded. */
+        lwz     r0,THREAD+THREAD_DBCR0(r2)
+        andis.  r10,r0,DBCR0_IC@h
+        bnel-   load_dbcr0
+#endif
+        stwcx.  r0,0,r1                 /* to clear the reservation */
+        lwz     r4,_LINK(r1)
+        lwz     r5,_CCR(r1)
+        mtlr    r4
+        mtcr    r5
+        lwz     r7,_NIP(r1)
+        lwz     r8,_MSR(r1)
+        FIX_SRR1(r8, r0)
+        lwz     r2,GPR2(r1)
+        lwz     r1,GPR1(r1)
+        mtspr   SPRN_SRR0,r7
+        mtspr   SPRN_SRR1,r8
+        SYNC
+        RFI
+
+66:     li      r3,-ENOSYS
+        b       ret_from_syscall
+
+        .globl  ret_from_fork
+ret_from_fork:
+        REST_NVGPRS(r1)
+        bl      schedule_tail
+        li      r3,0
+        b       ret_from_syscall
+
+/* Traced system call support */
+syscall_dotrace:
+        SAVE_NVGPRS(r1)
+        li      r0,0xc00
+        stw     r0,_TRAP(r1)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      do_syscall_trace_enter
+        lwz     r0,GPR0(r1)     /* Restore original registers */
+        lwz     r3,GPR3(r1)
+        lwz     r4,GPR4(r1)
+        lwz     r5,GPR5(r1)
+        lwz     r6,GPR6(r1)
+        lwz     r7,GPR7(r1)
+        lwz     r8,GPR8(r1)
+        REST_NVGPRS(r1)
+        b       syscall_dotrace_cont
+
+syscall_exit_work:
+        stw     r6,RESULT(r1)   /* Save result */
+        stw     r3,GPR3(r1)     /* Update return value */
+        andi.   r0,r9,_TIF_SYSCALL_T_OR_A
+        beq     5f
+        ori     r10,r10,MSR_EE
+        SYNC
+        MTMSRD(r10)             /* re-enable interrupts */
+        lwz     r4,_TRAP(r1)
+        andi.   r4,r4,1
+        beq     4f
+        SAVE_NVGPRS(r1)
+        li      r4,0xc00
+        stw     r4,_TRAP(r1)
+4:
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      do_syscall_trace_leave
+        REST_NVGPRS(r1)
+2:
+        lwz     r3,GPR3(r1)
+        LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
+        SYNC
+        MTMSRD(r10)             /* disable interrupts again */
+        rlwinm  r12,r1,0,0,(31-THREAD_SHIFT)    /* current_thread_info() */
+        lwz     r9,TI_FLAGS(r12)
+5:
+        andi.   r0,r9,_TIF_NEED_RESCHED
+        bne     1f
+        lwz     r5,_MSR(r1)
+        andi.   r5,r5,MSR_PR
+        beq     syscall_exit_cont
+        andi.   r0,r9,_TIF_SIGPENDING
+        beq     syscall_exit_cont
+        b       do_user_signal
+1:
+        ori     r10,r10,MSR_EE
+        SYNC
+        MTMSRD(r10)             /* re-enable interrupts */
+        bl      schedule
+        b       2b
+
+#ifdef SHOW_SYSCALLS
+do_show_syscall:
+#ifdef SHOW_SYSCALLS_TASK
+        lis     r11,show_syscalls_task@ha
+        lwz     r11,show_syscalls_task@l(r11)
+        cmp     0,r2,r11
+        bnelr
+#endif
+        stw     r31,GPR31(r1)
+        mflr    r31
+        lis     r3,7f@ha
+        addi    r3,r3,7f@l
+        lwz     r4,GPR0(r1)
+        lwz     r5,GPR3(r1)
+        lwz     r6,GPR4(r1)
+        lwz     r7,GPR5(r1)
+        lwz     r8,GPR6(r1)
+        lwz     r9,GPR7(r1)
+        bl      printk
+        lis     r3,77f@ha
+        addi    r3,r3,77f@l
+        lwz     r4,GPR8(r1)
+        mr      r5,r2
+        bl      printk
+        lwz     r0,GPR0(r1)
+        lwz     r3,GPR3(r1)
+        lwz     r4,GPR4(r1)
+        lwz     r5,GPR5(r1)
+        lwz     r6,GPR6(r1)
+        lwz     r7,GPR7(r1)
+        lwz     r8,GPR8(r1)
+        mtlr    r31
+        lwz     r31,GPR31(r1)
+        blr
+
+do_show_syscall_exit:
+#ifdef SHOW_SYSCALLS_TASK
+        lis     r11,show_syscalls_task@ha
+        lwz     r11,show_syscalls_task@l(r11)
+        cmp     0,r2,r11
+        bnelr
+#endif
+        stw     r31,GPR31(r1)
+        mflr    r31
+        stw     r3,RESULT(r1)   /* Save result */
+        mr      r4,r3
+        lis     r3,79f@ha
+        addi    r3,r3,79f@l
+        bl      printk
+        lwz     r3,RESULT(r1)
+        mtlr    r31
+        lwz     r31,GPR31(r1)
+        blr
+
+7:      .string "syscall %d(%x, %x, %x, %x, %x, "
+77:     .string "%x), current=%p\n"
+79:     .string " -> %x\n"
+        .align  2,0
+
+#ifdef SHOW_SYSCALLS_TASK
+        .data
+        .globl  show_syscalls_task
+show_syscalls_task:
+        .long   -1
+        .text
+#endif
+#endif /* SHOW_SYSCALLS */
+
+/*
+ * The sigsuspend and rt_sigsuspend system calls can call do_signal
+ * and thus put the process into the stopped state where we might
+ * want to examine its user state with ptrace.  Therefore we need
+ * to save all the nonvolatile registers (r13 - r31) before calling
+ * the C code.
+ */
+        .globl  ppc_sigsuspend
+ppc_sigsuspend:
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        rlwinm  r0,r0,0,0,30            /* clear LSB to indicate full */
+        stw     r0,_TRAP(r1)            /* register set saved */
+        b       sys_sigsuspend
+
+        .globl  ppc_rt_sigsuspend
+ppc_rt_sigsuspend:
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        rlwinm  r0,r0,0,0,30
+        stw     r0,_TRAP(r1)
+        b       sys_rt_sigsuspend
+
+        .globl  ppc_fork
+ppc_fork:
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        rlwinm  r0,r0,0,0,30            /* clear LSB to indicate full */
+        stw     r0,_TRAP(r1)            /* register set saved */
+        b       sys_fork
+
+        .globl  ppc_vfork
+ppc_vfork:
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        rlwinm  r0,r0,0,0,30            /* clear LSB to indicate full */
+        stw     r0,_TRAP(r1)            /* register set saved */
+        b       sys_vfork
+
+        .globl  ppc_clone
+ppc_clone:
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        rlwinm  r0,r0,0,0,30            /* clear LSB to indicate full */
+        stw     r0,_TRAP(r1)            /* register set saved */
+        b       sys_clone
+
+        .globl  ppc_swapcontext
+ppc_swapcontext:
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        rlwinm  r0,r0,0,0,30            /* clear LSB to indicate full */
+        stw     r0,_TRAP(r1)            /* register set saved */
+        b       sys_swapcontext
+
+/*
+ * Top-level page fault handling.
+ * This is in assembler because if do_page_fault tells us that
+ * it is a bad kernel page fault, we want to save the non-volatile
+ * registers before calling bad_page_fault.
+ */
+        .globl  handle_page_fault
+handle_page_fault:
+        stw     r4,_DAR(r1)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      do_page_fault
+        cmpwi   r3,0
+        beq+    ret_from_except
+        SAVE_NVGPRS(r1)
+        lwz     r0,_TRAP(r1)
+        clrrwi  r0,r0,1
+        stw     r0,_TRAP(r1)
+        mr      r5,r3
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        lwz     r4,_DAR(r1)
+        bl      bad_page_fault
+        b       ret_from_except_full
+
+/*
+ * This routine switches between two different tasks.  The process
+ * state of one is saved on its kernel stack.  Then the state
+ * of the other is restored from its kernel stack.  The memory
+ * management hardware is updated to the second process's state.
+ * Finally, we can return to the second process.
+ * On entry, r3 points to the THREAD for the current task, r4
+ * points to the THREAD for the new task.
+ *
+ * This routine is always called with interrupts disabled.
+ *
+ * Note: there are two ways to get to the "going out" portion
+ * of this code; either by coming in via the entry (_switch)
+ * or via "fork" which must set up an environment equivalent
+ * to the "_switch" path.  If you change this , you'll have to
+ * change the fork code also.
+ *
+ * The code which creates the new task context is in 'copy_thread'
+ * in arch/ppc/kernel/process.c
+ */
+_GLOBAL(_switch)
+        stwu    r1,-INT_FRAME_SIZE(r1)
+        mflr    r0
+        stw     r0,INT_FRAME_SIZE+4(r1)
+        /* r3-r12 are caller saved -- Cort */
+        SAVE_NVGPRS(r1)
+        stw     r0,_NIP(r1)     /* Return to switch caller */
+        mfmsr   r11
+        li      r0,MSR_FP       /* Disable floating-point */
+#ifdef CONFIG_ALTIVEC
+BEGIN_FTR_SECTION
+        oris    r0,r0,MSR_VEC@h /* Disable altivec */
+        mfspr   r12,SPRN_VRSAVE /* save vrsave register value */
+        stw     r12,THREAD+THREAD_VRSAVE(r2)
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+        oris    r0,r0,MSR_SPE@h  /* Disable SPE */
+        mfspr   r12,SPRN_SPEFSCR /* save spefscr register value */
+        stw     r12,THREAD+THREAD_SPEFSCR(r2)
+#endif /* CONFIG_SPE */
+        and.    r0,r0,r11       /* FP or altivec or SPE enabled? */
+        beq+    1f
+        andc    r11,r11,r0
+        MTMSRD(r11)
+        isync
+1:      stw     r11,_MSR(r1)
+        mfcr    r10
+        stw     r10,_CCR(r1)
+        stw     r1,KSP(r3)      /* Set old stack pointer */
+
+#ifdef CONFIG_SMP
+        /* We need a sync somewhere here to make sure that if the
+         * previous task gets rescheduled on another CPU, it sees all
+         * stores it has performed on this one.
+         */
+        sync
+#endif /* CONFIG_SMP */
+
+        tophys(r0,r4)
+        CLR_TOP32(r0)
+        mtspr   SPRN_SPRG3,r0   /* Update current THREAD phys addr */
+        lwz     r1,KSP(r4)      /* Load new stack pointer */
+
+        /* save the old current 'last' for return value */
+        mr      r3,r2
+        addi    r2,r4,-THREAD   /* Update current */
+
+#ifdef CONFIG_ALTIVEC
+BEGIN_FTR_SECTION
+        lwz     r0,THREAD+THREAD_VRSAVE(r2)
+        mtspr   SPRN_VRSAVE,r0          /* if G4, restore VRSAVE reg */
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+        lwz     r0,THREAD+THREAD_SPEFSCR(r2)
+        mtspr   SPRN_SPEFSCR,r0         /* restore SPEFSCR reg */
+#endif /* CONFIG_SPE */
+
+        lwz     r0,_CCR(r1)
+        mtcrf   0xFF,r0
+        /* r3-r12 are destroyed -- Cort */
+        REST_NVGPRS(r1)
+
+        lwz     r4,_NIP(r1)     /* Return to _switch caller in new task */
+        mtlr    r4
+        addi    r1,r1,INT_FRAME_SIZE
+        blr
+
+        .globl  fast_exception_return
+fast_exception_return:
+#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+        andi.   r10,r9,MSR_RI           /* check for recoverable interrupt */
+        beq     1f                      /* if not, we've got problems */
+#endif
+
+2:      REST_4GPRS(3, r11)
+        lwz     r10,_CCR(r11)
+        REST_GPR(1, r11)
+        mtcr    r10
+        lwz     r10,_LINK(r11)
+        mtlr    r10
+        REST_GPR(10, r11)
+        mtspr   SPRN_SRR1,r9
+        mtspr   SPRN_SRR0,r12
+        REST_GPR(9, r11)
+        REST_GPR(12, r11)
+        lwz     r11,GPR11(r11)
+        SYNC
+        RFI
+
+#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+/* check if the exception happened in a restartable section */
+1:      lis     r3,exc_exit_restart_end@ha
+        addi    r3,r3,exc_exit_restart_end@l
+        cmplw   r12,r3
+        bge     3f
+        lis     r4,exc_exit_restart@ha
+        addi    r4,r4,exc_exit_restart@l
+        cmplw   r12,r4
+        blt     3f
+        lis     r3,fee_restarts@ha
+        tophys(r3,r3)
+        lwz     r5,fee_restarts@l(r3)
+        addi    r5,r5,1
+        stw     r5,fee_restarts@l(r3)
+        mr      r12,r4          /* restart at exc_exit_restart */
+        b       2b
+
+        .comm   fee_restarts,4
+
+/* aargh, a nonrecoverable interrupt, panic */
+/* aargh, we don't know which trap this is */
+/* but the 601 doesn't implement the RI bit, so assume it's OK */
+3:
+BEGIN_FTR_SECTION
+        b       2b
+END_FTR_SECTION_IFSET(CPU_FTR_601)
+        li      r10,-1
+        stw     r10,_TRAP(r11)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        lis     r10,MSR_KERNEL@h
+        ori     r10,r10,MSR_KERNEL@l
+        bl      transfer_to_handler_full
+        .long   nonrecoverable_exception
+        .long   ret_from_except
+#endif
+
+        .globl  sigreturn_exit
+sigreturn_exit:
+        subi    r1,r3,STACK_FRAME_OVERHEAD
+        rlwinm  r12,r1,0,0,(31-THREAD_SHIFT)    /* current_thread_info() */
+        lwz     r9,TI_FLAGS(r12)
+        andi.   r0,r9,_TIF_SYSCALL_T_OR_A
+        beq+    ret_from_except_full
+        bl      do_syscall_trace_leave
+        /* fall through */
+
+        .globl  ret_from_except_full
+ret_from_except_full:
+        REST_NVGPRS(r1)
+        /* fall through */
+
+        .globl  ret_from_except
+ret_from_except:
+        /* Hard-disable interrupts so that current_thread_info()->flags
+         * can't change between when we test it and when we return
+         * from the interrupt. */
+        LOAD_MSR_KERNEL(r10,MSR_KERNEL)
+        SYNC                    /* Some chip revs have problems here... */
+        MTMSRD(r10)             /* disable interrupts */
+
+        lwz     r3,_MSR(r1)     /* Returning to user mode? */
+        andi.   r0,r3,MSR_PR
+        beq     resume_kernel
+
+user_exc_return:                /* r10 contains MSR_KERNEL here */
+        /* Check current_thread_info()->flags */
+        rlwinm  r9,r1,0,0,(31-THREAD_SHIFT)
+        lwz     r9,TI_FLAGS(r9)
+        andi.   r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED)
+        bne     do_work
+
+restore_user:
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+        /* Check whether this process has its own DBCR0 value.  The single
+           step bit tells us that dbcr0 should be loaded. */
+        lwz     r0,THREAD+THREAD_DBCR0(r2)
+        andis.  r10,r0,DBCR0_IC@h
+        bnel-   load_dbcr0
+#endif
+
+#ifdef CONFIG_PREEMPT
+        b       restore
+
+/* N.B. the only way to get here is from the beq following ret_from_except. */
+resume_kernel:
+        /* check current_thread_info->preempt_count */
+        rlwinm  r9,r1,0,0,(31-THREAD_SHIFT)
+        lwz     r0,TI_PREEMPT(r9)
+        cmpwi   0,r0,0          /* if non-zero, just restore regs and return */
+        bne     restore
+        lwz     r0,TI_FLAGS(r9)
+        andi.   r0,r0,_TIF_NEED_RESCHED
+        beq+    restore
+        andi.   r0,r3,MSR_EE    /* interrupts off? */
+        beq     restore         /* don't schedule if so */
+1:      bl      preempt_schedule_irq
+        rlwinm  r9,r1,0,0,(31-THREAD_SHIFT)
+        lwz     r3,TI_FLAGS(r9)
+        andi.   r0,r3,_TIF_NEED_RESCHED
+        bne-    1b
+#else
+resume_kernel:
+#endif /* CONFIG_PREEMPT */
+
+        /* interrupts are hard-disabled at this point */
+restore:
+        lwz     r0,GPR0(r1)
+        lwz     r2,GPR2(r1)
+        REST_4GPRS(3, r1)
+        REST_2GPRS(7, r1)
+
+        lwz     r10,_XER(r1)
+        lwz     r11,_CTR(r1)
+        mtspr   SPRN_XER,r10
+        mtctr   r11
+
+        PPC405_ERR77(0,r1)
+        stwcx.  r0,0,r1                 /* to clear the reservation */
+
+#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+        lwz     r9,_MSR(r1)
+        andi.   r10,r9,MSR_RI           /* check if this exception occurred */
+        beql    nonrecoverable          /* at a bad place (MSR:RI = 0) */
+
+        lwz     r10,_CCR(r1)
+        lwz     r11,_LINK(r1)
+        mtcrf   0xFF,r10
+        mtlr    r11
+
+        /*
+         * Once we put values in SRR0 and SRR1, we are in a state
+         * where exceptions are not recoverable, since taking an
+         * exception will trash SRR0 and SRR1.  Therefore we clear the
+         * MSR:RI bit to indicate this.  If we do take an exception,
+         * we can't return to the point of the exception but we
+         * can restart the exception exit path at the label
+         * exc_exit_restart below.  -- paulus
+         */
+        LOAD_MSR_KERNEL(r10,MSR_KERNEL & ~MSR_RI)
+        SYNC
+        MTMSRD(r10)             /* clear the RI bit */
+        .globl exc_exit_restart
+exc_exit_restart:
+        lwz     r9,_MSR(r1)
+        lwz     r12,_NIP(r1)
+        FIX_SRR1(r9,r10)
+        mtspr   SPRN_SRR0,r12
+        mtspr   SPRN_SRR1,r9
+        REST_4GPRS(9, r1)
+        lwz     r1,GPR1(r1)
+        .globl exc_exit_restart_end
+exc_exit_restart_end:
+        SYNC
+        RFI
+
+#else /* !(CONFIG_4xx || CONFIG_BOOKE) */
+        /*
+         * This is a bit different on 4xx/Book-E because it doesn't have
+         * the RI bit in the MSR.
+         * The TLB miss handler checks if we have interrupted
+         * the exception exit path and restarts it if so
+         * (well maybe one day it will... :).
+         */
+        lwz     r11,_LINK(r1)
+        mtlr    r11
+        lwz     r10,_CCR(r1)
+        mtcrf   0xff,r10
+        REST_2GPRS(9, r1)
+        .globl exc_exit_restart
+exc_exit_restart:
+        lwz     r11,_NIP(r1)
+        lwz     r12,_MSR(r1)
+exc_exit_start:
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
+        REST_2GPRS(11, r1)
+        lwz     r1,GPR1(r1)
+        .globl exc_exit_restart_end
+exc_exit_restart_end:
+        PPC405_ERR77_SYNC
+        rfi
+        b       .                       /* prevent prefetch past rfi */
+
+/*
+ * Returning from a critical interrupt in user mode doesn't need
+ * to be any different from a normal exception.  For a critical
+ * interrupt in the kernel, we just return (without checking for
+ * preemption) since the interrupt may have happened at some crucial
+ * place (e.g. inside the TLB miss handler), and because we will be
+ * running with r1 pointing into critical_stack, not the current
+ * process's kernel stack (and therefore current_thread_info() will
+ * give the wrong answer).
+ * We have to restore various SPRs that may have been in use at the
+ * time of the critical interrupt.
+ *
+ */
+#ifdef CONFIG_40x
+#define PPC_40x_TURN_OFF_MSR_DR                                             \
+        /* avoid any possible TLB misses here by turning off MSR.DR, we     \
+         * assume the instructions here are mapped by a pinned TLB entry */ \
+        li      r10,MSR_IR;                                                 \
+        mtmsr   r10;                                                        \
+        isync;                                                              \
+        tophys(r1, r1);
+#else
+#define PPC_40x_TURN_OFF_MSR_DR
+#endif
+
+#define RET_FROM_EXC_LEVEL(exc_lvl_srr0, exc_lvl_srr1, exc_lvl_rfi)     \
+        REST_NVGPRS(r1);                                                \
+        lwz     r3,_MSR(r1);                                            \
+        andi.   r3,r3,MSR_PR;                                           \
+        LOAD_MSR_KERNEL(r10,MSR_KERNEL);                                \
+        bne     user_exc_return;                                        \
+        lwz     r0,GPR0(r1);                                            \
+        lwz     r2,GPR2(r1);                                            \
+        REST_4GPRS(3, r1);                                              \
+        REST_2GPRS(7, r1);                                              \
+        lwz     r10,_XER(r1);                                           \
+        lwz     r11,_CTR(r1);                                           \
+        mtspr   SPRN_XER,r10;                                           \
+        mtctr   r11;                                                    \
+        PPC405_ERR77(0,r1);                                             \
+        stwcx.  r0,0,r1;                /* to clear the reservation */  \
+        lwz     r11,_LINK(r1);                                          \
+        mtlr    r11;                                                    \
+        lwz     r10,_CCR(r1);                                           \
+        mtcrf   0xff,r10;                                               \
+        PPC_40x_TURN_OFF_MSR_DR;                                        \
+        lwz     r9,_DEAR(r1);                                           \
+        lwz     r10,_ESR(r1);                                           \
+        mtspr   SPRN_DEAR,r9;                                           \
+        mtspr   SPRN_ESR,r10;                                           \
+        lwz     r11,_NIP(r1);                                           \
+        lwz     r12,_MSR(r1);                                           \
+        mtspr   exc_lvl_srr0,r11;                                       \
+        mtspr   exc_lvl_srr1,r12;                                       \
+        lwz     r9,GPR9(r1);                                            \
+        lwz     r12,GPR12(r1);                                          \
+        lwz     r10,GPR10(r1);                                          \
+        lwz     r11,GPR11(r1);                                          \
+        lwz     r1,GPR1(r1);                                            \
+        PPC405_ERR77_SYNC;                                              \
+        exc_lvl_rfi;                                                    \
+        b       .;              /* prevent prefetch past exc_lvl_rfi */
+
+        .globl  ret_from_crit_exc
+ret_from_crit_exc:
+        RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI)
+
+#ifdef CONFIG_BOOKE
+        .globl  ret_from_debug_exc
+ret_from_debug_exc:
+        RET_FROM_EXC_LEVEL(SPRN_DSRR0, SPRN_DSRR1, RFDI)
+
+        .globl  ret_from_mcheck_exc
+ret_from_mcheck_exc:
+        RET_FROM_EXC_LEVEL(SPRN_MCSRR0, SPRN_MCSRR1, RFMCI)
+#endif /* CONFIG_BOOKE */
+
+/*
+ * Load the DBCR0 value for a task that is being ptraced,
+ * having first saved away the global DBCR0.  Note that r0
+ * has the dbcr0 value to set upon entry to this.
+ */
+load_dbcr0:
+        mfmsr   r10             /* first disable debug exceptions */
+        rlwinm  r10,r10,0,~MSR_DE
+        mtmsr   r10
+        isync
+        mfspr   r10,SPRN_DBCR0
+        lis     r11,global_dbcr0@ha
+        addi    r11,r11,global_dbcr0@l
+        stw     r10,0(r11)
+        mtspr   SPRN_DBCR0,r0
+        lwz     r10,4(r11)
+        addi    r10,r10,1
+        stw     r10,4(r11)
+        li      r11,-1
+        mtspr   SPRN_DBSR,r11   /* clear all pending debug events */
+        blr
+
+        .comm   global_dbcr0,8
+#endif /* !(CONFIG_4xx || CONFIG_BOOKE) */
+
+do_work:                        /* r10 contains MSR_KERNEL here */
+        andi.   r0,r9,_TIF_NEED_RESCHED
+        beq     do_user_signal
+
+do_resched:                     /* r10 contains MSR_KERNEL here */
+        ori     r10,r10,MSR_EE
+        SYNC
+        MTMSRD(r10)             /* hard-enable interrupts */
+        bl      schedule
+recheck:
+        LOAD_MSR_KERNEL(r10,MSR_KERNEL)
+        SYNC
+        MTMSRD(r10)             /* disable interrupts */
+        rlwinm  r9,r1,0,0,(31-THREAD_SHIFT)
+        lwz     r9,TI_FLAGS(r9)
+        andi.   r0,r9,_TIF_NEED_RESCHED
+        bne-    do_resched
+        andi.   r0,r9,_TIF_SIGPENDING
+        beq     restore_user
+do_user_signal:                 /* r10 contains MSR_KERNEL here */
+        ori     r10,r10,MSR_EE
+        SYNC
+        MTMSRD(r10)             /* hard-enable interrupts */
+        /* save r13-r31 in the exception frame, if not already done */
+        lwz     r3,_TRAP(r1)
+        andi.   r0,r3,1
+        beq     2f
+        SAVE_NVGPRS(r1)
+        rlwinm  r3,r3,0,0,30
+        stw     r3,_TRAP(r1)
+2:      li      r3,0
+        addi    r4,r1,STACK_FRAME_OVERHEAD
+        bl      do_signal
+        REST_NVGPRS(r1)
+        b       recheck
+
+/*
+ * We come here when we are at the end of handling an exception
+ * that occurred at a place where taking an exception will lose
+ * state information, such as the contents of SRR0 and SRR1.
+ */
+nonrecoverable:
+        lis     r10,exc_exit_restart_end@ha
+        addi    r10,r10,exc_exit_restart_end@l
+        cmplw   r12,r10
+        bge     3f
+        lis     r11,exc_exit_restart@ha
+        addi    r11,r11,exc_exit_restart@l
+        cmplw   r12,r11
+        blt     3f
+        lis     r10,ee_restarts@ha
+        lwz     r12,ee_restarts@l(r10)
+        addi    r12,r12,1
+        stw     r12,ee_restarts@l(r10)
+        mr      r12,r11         /* restart at exc_exit_restart */
+        blr
+3:      /* OK, we can't recover, kill this process */
+        /* but the 601 doesn't implement the RI bit, so assume it's OK */
+BEGIN_FTR_SECTION
+        blr
+END_FTR_SECTION_IFSET(CPU_FTR_601)
+        lwz     r3,_TRAP(r1)
+        andi.   r0,r3,1
+        beq     4f
+        SAVE_NVGPRS(r1)
+        rlwinm  r3,r3,0,0,30
+        stw     r3,_TRAP(r1)
+4:      addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      nonrecoverable_exception
+        /* shouldn't return */
+        b       4b
+
+        .comm   ee_restarts,4
+
+/*
+ * PROM code for specific machines follows.  Put it
+ * here so it's easy to add arch-specific sections later.
+ * -- Cort
+ */
+#ifdef CONFIG_PPC_RTAS
+/*
+ * On CHRP, the Run-Time Abstraction Services (RTAS) have to be
+ * called with the MMU off.
+ */
+_GLOBAL(enter_rtas)
+        stwu    r1,-INT_FRAME_SIZE(r1)
+        mflr    r0
+        stw     r0,INT_FRAME_SIZE+4(r1)
+        LOADADDR(r4, rtas)
+        lis     r6,1f@ha        /* physical return address for rtas */
+        addi    r6,r6,1f@l
+        tophys(r6,r6)
+        tophys(r7,r1)
+        lwz     r8,RTASENTRY(r4)
+        lwz     r4,RTASBASE(r4)
+        mfmsr   r9
+        stw     r9,8(r1)
+        LOAD_MSR_KERNEL(r0,MSR_KERNEL)
+        SYNC                    /* disable interrupts so SRR0/1 */
+        MTMSRD(r0)              /* don't get trashed */
+        li      r9,MSR_KERNEL & ~(MSR_IR|MSR_DR)
+        mtlr    r6
+        mtspr   SPRN_SPRG2,r7
+        mtspr   SPRN_SRR0,r8
+        mtspr   SPRN_SRR1,r9
+        RFI
+1:      tophys(r9,r1)
+        lwz     r8,INT_FRAME_SIZE+4(r9) /* get return address */
+        lwz     r9,8(r9)        /* original msr value */
+        FIX_SRR1(r9,r0)
+        addi    r1,r1,INT_FRAME_SIZE
+        li      r0,0
+        mtspr   SPRN_SPRG2,r0
+        mtspr   SPRN_SRR0,r8
+        mtspr   SPRN_SRR1,r9
+        RFI                     /* return to caller */
+
+        .globl  machine_check_in_rtas
+machine_check_in_rtas:
+        twi     31,0,0
+        /* XXX load up BATs and panic */
+
+#endif /* CONFIG_PPC_RTAS */
diff --git a/arch/ppc64/kernel/entry.S b/arch/powerpc/kernel/entry_64.S
index e8c0bbf4d000..984a10630714 100644
--- a/arch/ppc64/kernel/entry.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -42,9 +42,6 @@
 .SYS_CALL_TABLE:
         .tc .sys_call_table[TC],.sys_call_table
 
-.SYS_CALL_TABLE32:
-        .tc .sys_call_table32[TC],.sys_call_table32
-
 /* This value is used to mark exception frames on the stack. */
 exception_marker:
         .tc     ID_72656773_68657265[TC],0x7265677368657265
@@ -133,7 +130,7 @@ system_call:			/* label this so stack traces look sane */
         ld      r11,.SYS_CALL_TABLE@toc(2)
         andi.   r10,r10,_TIF_32BIT
         beq     15f
-        ld      r11,.SYS_CALL_TABLE32@toc(2)
+        addi    r11,r11,8       /* use 32-bit syscall entries */
         clrldi  r3,r3,32
         clrldi  r4,r4,32
         clrldi  r5,r5,32
@@ -141,7 +138,7 @@ system_call:			/* label this so stack traces look sane */
         clrldi  r7,r7,32
         clrldi  r8,r8,32
 15:
-        slwi    r0,r0,3
+        slwi    r0,r0,4
         ldx     r10,r11,r0      /* Fetch system call handler [ptr] */
         mtctr   r10
         bctrl                   /* Call handler */
@@ -191,8 +188,8 @@ syscall_exit_trace_cont:
         ld      r1,GPR1(r1)
         mtlr    r4
         mtcr    r5
-        mtspr   SRR0,r7
-        mtspr   SRR1,r8
+        mtspr   SPRN_SRR0,r7
+        mtspr   SPRN_SRR1,r8
         rfid
         b       .       /* prevent speculative execution */
 
@@ -265,7 +262,7 @@ _GLOBAL(save_nvgprs)
  */
 _GLOBAL(ppc32_sigsuspend)
         bl      .save_nvgprs
-        bl      .sys32_sigsuspend
+        bl      .compat_sys_sigsuspend
         b       70f
 
 _GLOBAL(ppc64_rt_sigsuspend)
@@ -275,7 +272,7 @@ _GLOBAL(ppc64_rt_sigsuspend)
 
 _GLOBAL(ppc32_rt_sigsuspend)
         bl      .save_nvgprs
-        bl      .sys32_rt_sigsuspend
+        bl      .compat_sys_rt_sigsuspend
 70:     cmpdi   0,r3,0
         /* If it returned an error, we need to return via syscall_exit to set
            the SO bit in cr0 and potentially stop for ptrace. */
@@ -310,7 +307,7 @@ _GLOBAL(ppc_clone)
 
 _GLOBAL(ppc32_swapcontext)
         bl      .save_nvgprs
-        bl      .sys32_swapcontext
+        bl      .compat_sys_swapcontext
         b       80f
         
 _GLOBAL(ppc64_swapcontext)
@@ -319,11 +316,11 @@ _GLOBAL(ppc64_swapcontext)
         b       80f
 
 _GLOBAL(ppc32_sigreturn)
-        bl      .sys32_sigreturn
+        bl      .compat_sys_sigreturn
         b       80f
 
 _GLOBAL(ppc32_rt_sigreturn)
-        bl      .sys32_rt_sigreturn
+        bl      .compat_sys_rt_sigreturn
         b       80f
 
 _GLOBAL(ppc64_rt_sigreturn)
@@ -531,7 +528,7 @@ restore:
         mtctr   r3
         mtlr    r0
         ld      r3,_XER(r1)
-        mtspr   XER,r3
+        mtspr   SPRN_XER,r3
 
         REST_8GPRS(5, r1)
 
@@ -543,12 +540,12 @@ restore:
         mtmsrd  r0,1
 
         ld      r0,_MSR(r1)
-        mtspr   SRR1,r0
+        mtspr   SPRN_SRR1,r0
 
         ld      r2,_CCR(r1)
         mtcrf   0xFF,r2
         ld      r2,_NIP(r1)
-        mtspr   SRR0,r2
+        mtspr   SPRN_SRR0,r2
 
         ld      r0,GPR0(r1)
         ld      r2,GPR2(r1)
@@ -643,7 +640,7 @@ _GLOBAL(enter_rtas)
         std     r4,_CCR(r1)
         mfctr   r5
         std     r5,_CTR(r1)
-        mfspr   r6,XER
+        mfspr   r6,SPRN_XER
         std     r6,_XER(r1)
         mfdar   r7
         std     r7,_DAR(r1)
@@ -697,14 +694,14 @@ _GLOBAL(enter_rtas)
         ld      r5,RTASENTRY(r4)        /* get the rtas->entry value */
         ld      r4,RTASBASE(r4)         /* get the rtas->base value */
         
-        mtspr   SRR0,r5
-        mtspr   SRR1,r6
+        mtspr   SPRN_SRR0,r5
+        mtspr   SPRN_SRR1,r6
         rfid
         b       .       /* prevent speculative execution */
 
 _STATIC(rtas_return_loc)
         /* relocation is off at this point */
-        mfspr   r4,SPRG3                /* Get PACA */
+        mfspr   r4,SPRN_SPRG3           /* Get PACA */
         SET_REG_TO_CONST(r5, KERNELBASE)
         sub     r4,r4,r5                /* RELOC the PACA base pointer */
 
@@ -718,8 +715,8 @@ _STATIC(rtas_return_loc)
         LOADADDR(r3,.rtas_restore_regs)
         ld      r4,PACASAVEDMSR(r4)     /* Restore our MSR */
 
-        mtspr   SRR0,r3
-        mtspr   SRR1,r4
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
         rfid
         b       .       /* prevent speculative execution */
 
@@ -730,14 +727,14 @@ _STATIC(rtas_restore_regs)
         REST_8GPRS(14, r1)              /* Restore the non-volatiles */
         REST_10GPRS(22, r1)             /* ditto */
 
-        mfspr   r13,SPRG3
+        mfspr   r13,SPRN_SPRG3
 
         ld      r4,_CCR(r1)
         mtcr    r4
         ld      r5,_CTR(r1)
         mtctr   r5
         ld      r6,_XER(r1)
-        mtspr   XER,r6
+        mtspr   SPRN_XER,r6
         ld      r7,_DAR(r1)
         mtdar   r7
         ld      r8,_DSISR(r1)
@@ -774,7 +771,7 @@ _GLOBAL(enter_prom)
         std     r4,_CCR(r1)
         mfctr   r5
         std     r5,_CTR(r1)
-        mfspr   r6,XER
+        mfspr   r6,SPRN_XER
         std     r6,_XER(r1)
         mfdar   r7
         std     r7,_DAR(r1)
@@ -827,7 +824,7 @@ _GLOBAL(enter_prom)
         ld      r5,_CTR(r1)
         mtctr   r5
         ld      r6,_XER(r1)
-        mtspr   XER,r6
+        mtspr   SPRN_XER,r6
         ld      r7,_DAR(r1)
         mtdar   r7
         ld      r8,_DSISR(r1)
diff --git a/arch/ppc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 665d7d34304c..4d6001fa1cf2 100644
--- a/arch/ppc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -10,7 +10,7 @@
  */
 
 #include <linux/config.h>
-#include <asm/processor.h>
+#include <asm/reg.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
@@ -27,13 +27,9 @@
  * Load up this task's FP registers from its thread_struct,
  * enable the FPU for the current task and return to the task.
  */
-        .globl  load_up_fpu
-load_up_fpu:
+_GLOBAL(load_up_fpu)
         mfmsr   r5
         ori     r5,r5,MSR_FP
-#ifdef CONFIG_PPC64BRIDGE
-        clrldi  r5,r5,1                 /* turn off 64-bit mode */
-#endif /* CONFIG_PPC64BRIDGE */
         SYNC
         MTMSRD(r5)                      /* enable use of fpu now */
         isync
@@ -43,67 +39,57 @@ load_up_fpu:
  * to another.  Instead we call giveup_fpu in switch_to.
  */
 #ifndef CONFIG_SMP
-        tophys(r6,0)                    /* get __pa constant */
-        addis   r3,r6,last_task_used_math@ha
-        lwz     r4,last_task_used_math@l(r3)
-        cmpwi   0,r4,0
+        LOADBASE(r3, last_task_used_math)
+        toreal(r3)
+        LDL     r4,OFF(last_task_used_math)(r3)
+        CMPI    0,r4,0
         beq     1f
-        add     r4,r4,r6
+        toreal(r4)
         addi    r4,r4,THREAD            /* want last_task_used_math->thread */
         SAVE_32FPRS(0, r4)
         mffs    fr0
-        stfd    fr0,THREAD_FPSCR-4(r4)
-        lwz     r5,PT_REGS(r4)
-        add     r5,r5,r6
-        lwz     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        stfd    fr0,THREAD_FPSCR(r4)
+        LDL     r5,PT_REGS(r4)
+        toreal(r5)
+        LDL     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
         li      r10,MSR_FP|MSR_FE0|MSR_FE1
         andc    r4,r4,r10               /* disable FP for previous task */
-        stw     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        STL     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
 1:
 #endif /* CONFIG_SMP */
         /* enable use of FP after return */
+#ifdef CONFIG_PPC32
         mfspr   r5,SPRN_SPRG3           /* current task's THREAD (phys) */
         lwz     r4,THREAD_FPEXC_MODE(r5)
         ori     r9,r9,MSR_FP            /* enable FP for current */
         or      r9,r9,r4
-        lfd     fr0,THREAD_FPSCR-4(r5)
+#else
+        ld      r4,PACACURRENT(r13)
+        addi    r5,r4,THREAD            /* Get THREAD */
+        ld      r4,THREAD_FPEXC_MODE(r5)
+        ori     r12,r12,MSR_FP
+        or      r12,r12,r4
+        std     r12,_MSR(r1)
+#endif
+        lfd     fr0,THREAD_FPSCR(r5)
         mtfsf   0xff,fr0
         REST_32FPRS(0, r5)
 #ifndef CONFIG_SMP
         subi    r4,r5,THREAD
-        sub     r4,r4,r6
-        stw     r4,last_task_used_math@l(r3)
+        fromreal(r4)
+        STL     r4,OFF(last_task_used_math)(r3)
 #endif /* CONFIG_SMP */
         /* restore registers and return */
         /* we haven't used ctr or xer or lr */
         b       fast_exception_return
 
 /*
- * FP unavailable trap from kernel - print a message, but let
- * the task use FP in the kernel until it returns to user mode.
- */
-        .globl  KernelFP
-KernelFP:
-        lwz     r3,_MSR(r1)
-        ori     r3,r3,MSR_FP
-        stw     r3,_MSR(r1)             /* enable use of FP after return */
-        lis     r3,86f@h
-        ori     r3,r3,86f@l
-        mr      r4,r2                   /* current */
-        lwz     r5,_NIP(r1)
-        bl      printk
-        b       ret_from_except
-86:     .string "floating point used in kernel (task=%p, pc=%x)\n"
-        .align  4,0
-
-/*
  * giveup_fpu(tsk)
  * Disable FP for the task given as the argument,
  * and save the floating-point registers in its thread_struct.
  * Enables the FPU for use in the kernel on return.
  */
-        .globl  giveup_fpu
-giveup_fpu:
+_GLOBAL(giveup_fpu)
         mfmsr   r5
         ori     r5,r5,MSR_FP
         SYNC_601
@@ -111,23 +97,48 @@ giveup_fpu:
         MTMSRD(r5)                      /* enable use of fpu now */
         SYNC_601
         isync
-        cmpwi   0,r3,0
+        CMPI    0,r3,0
         beqlr-                          /* if no previous owner, done */
         addi    r3,r3,THREAD            /* want THREAD of task */
-        lwz     r5,PT_REGS(r3)
-        cmpwi   0,r5,0
+        LDL     r5,PT_REGS(r3)
+        CMPI    0,r5,0
         SAVE_32FPRS(0, r3)
         mffs    fr0
-        stfd    fr0,THREAD_FPSCR-4(r3)
+        stfd    fr0,THREAD_FPSCR(r3)
         beq     1f
-        lwz     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        LDL     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
         li      r3,MSR_FP|MSR_FE0|MSR_FE1
         andc    r4,r4,r3                /* disable FP for previous task */
-        stw     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        STL     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
 1:
 #ifndef CONFIG_SMP
         li      r5,0
-        lis     r4,last_task_used_math@ha
-        stw     r5,last_task_used_math@l(r4)
+        LOADBASE(r4,last_task_used_math)
+        STL     r5,OFF(last_task_used_math)(r4)
 #endif /* CONFIG_SMP */
         blr
+
+/*
+ * These are used in the alignment trap handler when emulating
+ * single-precision loads and stores.
+ * We restore and save the fpscr so the task gets the same result
+ * and exceptions as if the cpu had performed the load or store.
+ */
+
+_GLOBAL(cvt_fd)
+        lfd     0,THREAD_FPSCR(r5)      /* load up fpscr value */
+        mtfsf   0xff,0
+        lfs     0,0(r3)
+        stfd    0,0(r4)
+        mffs    0
+        stfd    0,THREAD_FPSCR(r5)      /* save new fpscr value */
+        blr
+
+_GLOBAL(cvt_df)
+        lfd     0,THREAD_FPSCR(r5)      /* load up fpscr value */
+        mtfsf   0xff,0
+        lfd     0,0(r3)
+        stfs    0,0(r4)
+        mffs    0
+        stfd    0,THREAD_FPSCR(r5)      /* save new fpscr value */
+        blr
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
new file mode 100644
index 000000000000..b102e3a2415e
--- /dev/null
+++ b/arch/powerpc/kernel/head_32.S
@@ -0,0 +1,1381 @@
+/*
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
+ *    Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *  Adapted for Power Macintosh by Paul Mackerras.
+ *  Low-level exception handlers and MMU support
+ *  rewritten by Paul Mackerras.
+ *    Copyright (C) 1996 Paul Mackerras.
+ *  MPC8xx modifications Copyright (C) 1997 Dan Malek (dmalek@jlc.net).
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  This file contains the low-level support and setup for the
+ *  PowerPC platform, including trap and interrupt dispatch.
+ *  (The PPC 8xx embedded CPUs use head_8xx.S instead.)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/reg.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/cputable.h>
+#include <asm/cache.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+
+#ifdef CONFIG_APUS
+#include <asm/amigappc.h>
+#endif
+
+/* 601 only have IBAT; cr0.eq is set on 601 when using this macro */
+#define LOAD_BAT(n, reg, RA, RB)        \
+        /* see the comment for clear_bats() -- Cort */ \
+        li      RA,0;                   \
+        mtspr   SPRN_IBAT##n##U,RA;     \
+        mtspr   SPRN_DBAT##n##U,RA;     \
+        lwz     RA,(n*16)+0(reg);       \
+        lwz     RB,(n*16)+4(reg);       \
+        mtspr   SPRN_IBAT##n##U,RA;     \
+        mtspr   SPRN_IBAT##n##L,RB;     \
+        beq     1f;                     \
+        lwz     RA,(n*16)+8(reg);       \
+        lwz     RB,(n*16)+12(reg);      \
+        mtspr   SPRN_DBAT##n##U,RA;     \
+        mtspr   SPRN_DBAT##n##L,RB;     \
+1:
+
+        .text
+        .stabs  "arch/powerpc/kernel/",N_SO,0,0,0f
+        .stabs  "head_32.S",N_SO,0,0,0f
+0:
+        .globl  _stext
+_stext:
+
+/*
+ * _start is defined this way because the XCOFF loader in the OpenFirmware
+ * on the powermac expects the entry point to be a procedure descriptor.
+ */
+        .text
+        .globl  _start
+_start:
+        /*
+         * These are here for legacy reasons, the kernel used to
+         * need to look like a coff function entry for the pmac
+         * but we're always started by some kind of bootloader now.
+         *  -- Cort
+         */
+        nop     /* used by __secondary_hold on prep (mtx) and chrp smp */
+        nop     /* used by __secondary_hold on prep (mtx) and chrp smp */
+        nop
+
+/* PMAC
+ * Enter here with the kernel text, data and bss loaded starting at
+ * 0, running with virtual == physical mapping.
+ * r5 points to the prom entry point (the client interface handler
+ * address).  Address translation is turned on, with the prom
+ * managing the hash table.  Interrupts are disabled.  The stack
+ * pointer (r1) points to just below the end of the half-meg region
+ * from 0x380000 - 0x400000, which is mapped in already.
+ *
+ * If we are booted from MacOS via BootX, we enter with the kernel
+ * image loaded somewhere, and the following values in registers:
+ *  r3: 'BooX' (0x426f6f58)
+ *  r4: virtual address of boot_infos_t
+ *  r5: 0
+ *
+ * APUS
+ *   r3: 'APUS'
+ *   r4: physical address of memory base
+ *   Linux/m68k style BootInfo structure at &_end.
+ *
+ * PREP
+ * This is jumped to on prep systems right after the kernel is relocated
+ * to its proper place in memory by the boot loader.  The expected layout
+ * of the regs is:
+ *   r3: ptr to residual data
+ *   r4: initrd_start or if no initrd then 0
+ *   r5: initrd_end - unused if r4 is 0
+ *   r6: Start of command line string
+ *   r7: End of command line string
+ *
+ * This just gets a minimal mmu environment setup so we can call
+ * start_here() to do the real work.
+ * -- Cort
+ */
+
+        .globl  __start
+__start:
+/*
+ * We have to do any OF calls before we map ourselves to KERNELBASE,
+ * because OF may have I/O devices mapped into that area
+ * (particularly on CHRP).
+ */
+        cmpwi   0,r5,0
+        beq     1f
+        bl      prom_init
+        trap
+
+1:      mr      r31,r3                  /* save parameters */
+        mr      r30,r4
+        li      r24,0                   /* cpu # */
+
+/*
+ * early_init() does the early machine identification and does
+ * the necessary low-level setup and clears the BSS
+ *  -- Cort <cort@fsmlabs.com>
+ */
+        bl      early_init
+
+#ifdef CONFIG_APUS
+/* On APUS the __va/__pa constants need to be set to the correct
+ * values before continuing.
+ */
+        mr      r4,r30
+        bl      fix_mem_constants
+#endif /* CONFIG_APUS */
+
+/* Switch MMU off, clear BATs and flush TLB. At this point, r3 contains
+ * the physical address we are running at, returned by early_init()
+ */
+        bl      mmu_off
+__after_mmu_off:
+        bl      clear_bats
+        bl      flush_tlbs
+
+        bl      initial_bats
+
+/*
+ * Call setup_cpu for CPU 0 and initialize 6xx Idle
+ */
+        bl      reloc_offset
+        li      r24,0                   /* cpu# */
+        bl      call_setup_cpu          /* Call setup_cpu for this CPU */
+#ifdef CONFIG_6xx
+        bl      reloc_offset
+        bl      init_idle_6xx
+#endif /* CONFIG_6xx */
+
+
+#ifndef CONFIG_APUS
+/*
+ * We need to run with _start at physical address 0.
+ * On CHRP, we are loaded at 0x10000 since OF on CHRP uses
+ * the exception vectors at 0 (and therefore this copy
+ * overwrites OF's exception vectors with our own).
+ * The MMU is off at this point.
+ */
+        bl      reloc_offset
+        mr      r26,r3
+        addis   r4,r3,KERNELBASE@h      /* current address of _start */
+        cmpwi   0,r4,0                  /* are we already running at 0? */
+        bne     relocate_kernel
+#endif /* CONFIG_APUS */
+/*
+ * we now have the 1st 16M of ram mapped with the bats.
+ * prep needs the mmu to be turned on here, but pmac already has it on.
+ * this shouldn't bother the pmac since it just gets turned on again
+ * as we jump to our code at KERNELBASE. -- Cort
+ * Actually no, pmac doesn't have it on any more. BootX enters with MMU
+ * off, and in other cases, we now turn it off before changing BATs above.
+ */
+turn_on_mmu:
+        mfmsr   r0
+        ori     r0,r0,MSR_DR|MSR_IR
+        mtspr   SPRN_SRR1,r0
+        lis     r0,start_here@h
+        ori     r0,r0,start_here@l
+        mtspr   SPRN_SRR0,r0
+        SYNC
+        RFI                             /* enables MMU */
+
+/*
+ * We need __secondary_hold as a place to hold the other cpus on
+ * an SMP machine, even when we are running a UP kernel.
+ */
+        . = 0xc0                        /* for prep bootloader */
+        li      r3,1                    /* MTX only has 1 cpu */
+        .globl  __secondary_hold
+__secondary_hold:
+        /* tell the master we're here */
+        stw     r3,__secondary_hold_acknowledge@l(0)
+#ifdef CONFIG_SMP
+100:    lwz     r4,0(0)
+        /* wait until we're told to start */
+        cmpw    0,r4,r3
+        bne     100b
+        /* our cpu # was at addr 0 - go */
+        mr      r24,r3                  /* cpu # */
+        b       __secondary_start
+#else
+        b       .
+#endif /* CONFIG_SMP */
+
+        .globl  __secondary_hold_spinloop
+__secondary_hold_spinloop:
+        .long   0
+        .globl  __secondary_hold_acknowledge
+__secondary_hold_acknowledge:
+        .long   -1
+
+/*
+ * Exception entry code.  This code runs with address translation
+ * turned off, i.e. using physical addresses.
+ * We assume sprg3 has the physical address of the current
+ * task's thread_struct.
+ */
+#define EXCEPTION_PROLOG        \
+        mtspr   SPRN_SPRG0,r10; \
+        mtspr   SPRN_SPRG1,r11; \
+        mfcr    r10;            \
+        EXCEPTION_PROLOG_1;     \
+        EXCEPTION_PROLOG_2
+
+#define EXCEPTION_PROLOG_1      \
+        mfspr   r11,SPRN_SRR1;          /* check whether user or kernel */ \
+        andi.   r11,r11,MSR_PR; \
+        tophys(r11,r1);                 /* use tophys(r1) if kernel */ \
+        beq     1f;             \
+        mfspr   r11,SPRN_SPRG3; \
+        lwz     r11,THREAD_INFO-THREAD(r11);    \
+        addi    r11,r11,THREAD_SIZE;    \
+        tophys(r11,r11);        \
+1:      subi    r11,r11,INT_FRAME_SIZE  /* alloc exc. frame */
+
+
+#define EXCEPTION_PROLOG_2      \
+        CLR_TOP32(r11);         \
+        stw     r10,_CCR(r11);          /* save registers */ \
+        stw     r12,GPR12(r11); \
+        stw     r9,GPR9(r11);   \
+        mfspr   r10,SPRN_SPRG0; \
+        stw     r10,GPR10(r11); \
+        mfspr   r12,SPRN_SPRG1; \
+        stw     r12,GPR11(r11); \
+        mflr    r10;            \
+        stw     r10,_LINK(r11); \
+        mfspr   r12,SPRN_SRR0;  \
+        mfspr   r9,SPRN_SRR1;   \
+        stw     r1,GPR1(r11);   \
+        stw     r1,0(r11);      \
+        tovirt(r1,r11);                 /* set new kernel sp */ \
+        li      r10,MSR_KERNEL & ~(MSR_IR|MSR_DR); /* can take exceptions */ \
+        MTMSRD(r10);                    /* (except for mach check in rtas) */ \
+        stw     r0,GPR0(r11);   \
+        lis     r10,0x7265;             /* put exception frame marker */ \
+        addi    r10,r10,0x6773; \
+        stw     r10,8(r11);     \
+        SAVE_4GPRS(3, r11);     \
+        SAVE_2GPRS(7, r11)
+
+/*
+ * Note: code which follows this uses cr0.eq (set if from kernel),
+ * r11, r12 (SRR0), and r9 (SRR1).
+ *
+ * Note2: once we have set r1 we are in a position to take exceptions
+ * again, and we could thus set MSR:RI at that point.
+ */
+
+/*
+ * Exception vectors.
+ */
+#define EXCEPTION(n, label, hdlr, xfer)         \
+        . = n;                                  \
+label:                                          \
+        EXCEPTION_PROLOG;                       \
+        addi    r3,r1,STACK_FRAME_OVERHEAD;     \
+        xfer(n, hdlr)
+
+#define EXC_XFER_TEMPLATE(n, hdlr, trap, copyee, tfer, ret)     \
+        li      r10,trap;                                       \
+        stw     r10,_TRAP(r11);                                 \
+        li      r10,MSR_KERNEL;                                 \
+        copyee(r10, r9);                                        \
+        bl      tfer;                                           \
+i##n:                                                           \
+        .long   hdlr;                                           \
+        .long   ret
+
+#define COPY_EE(d, s)           rlwimi d,s,0,16,16
+#define NOCOPY(d, s)
+
+#define EXC_XFER_STD(n, hdlr)           \
+        EXC_XFER_TEMPLATE(n, hdlr, n, NOCOPY, transfer_to_handler_full, \
+                          ret_from_except_full)
+
+#define EXC_XFER_LITE(n, hdlr)          \
+        EXC_XFER_TEMPLATE(n, hdlr, n+1, NOCOPY, transfer_to_handler, \
+                          ret_from_except)
+
+#define EXC_XFER_EE(n, hdlr)            \
+        EXC_XFER_TEMPLATE(n, hdlr, n, COPY_EE, transfer_to_handler_full, \
+                          ret_from_except_full)
+
+#define EXC_XFER_EE_LITE(n, hdlr)       \
+        EXC_XFER_TEMPLATE(n, hdlr, n+1, COPY_EE, transfer_to_handler, \
+                          ret_from_except)
+
+/* System reset */
+/* core99 pmac starts the seconary here by changing the vector, and
+   putting it back to what it was (unknown_exception) when done.  */
+#if defined(CONFIG_GEMINI) && defined(CONFIG_SMP)
+        . = 0x100
+        b       __secondary_start_gemini
+#else
+        EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
+#endif
+
+/* Machine check */
+/*
+ * On CHRP, this is complicated by the fact that we could get a
+ * machine check inside RTAS, and we have no guarantee that certain
+ * critical registers will have the values we expect.  The set of
+ * registers that might have bad values includes all the GPRs
+ * and all the BATs.  We indicate that we are in RTAS by putting
+ * a non-zero value, the address of the exception frame to use,
+ * in SPRG2.  The machine check handler checks SPRG2 and uses its
+ * value if it is non-zero.  If we ever needed to free up SPRG2,
+ * we could use a field in the thread_info or thread_struct instead.
+ * (Other exception handlers assume that r1 is a valid kernel stack
+ * pointer when we take an exception from supervisor mode.)
+ *      -- paulus.
+ */
+        . = 0x200
+        mtspr   SPRN_SPRG0,r10
+        mtspr   SPRN_SPRG1,r11
+        mfcr    r10
+#ifdef CONFIG_PPC_CHRP
+        mfspr   r11,SPRN_SPRG2
+        cmpwi   0,r11,0
+        bne     7f
+#endif /* CONFIG_PPC_CHRP */
+        EXCEPTION_PROLOG_1
+7:      EXCEPTION_PROLOG_2
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+#ifdef CONFIG_PPC_CHRP
+        mfspr   r4,SPRN_SPRG2
+        cmpwi   cr1,r4,0
+        bne     cr1,1f
+#endif
+        EXC_XFER_STD(0x200, machine_check_exception)
+#ifdef CONFIG_PPC_CHRP
+1:      b       machine_check_in_rtas
+#endif
+
+/* Data access exception. */
+        . = 0x300
+DataAccess:
+        EXCEPTION_PROLOG
+        mfspr   r10,SPRN_DSISR
+        andis.  r0,r10,0xa470           /* weird error? */
+        bne     1f                      /* if not, try to put a PTE */
+        mfspr   r4,SPRN_DAR             /* into the hash table */
+        rlwinm  r3,r10,32-15,21,21      /* DSISR_STORE -> _PAGE_RW */
+        bl      hash_page
+1:      stw     r10,_DSISR(r11)
+        mr      r5,r10
+        mfspr   r4,SPRN_DAR
+        EXC_XFER_EE_LITE(0x300, handle_page_fault)
+
+
+/* Instruction access exception. */
+        . = 0x400
+InstructionAccess:
+        EXCEPTION_PROLOG
+        andis.  r0,r9,0x4000            /* no pte found? */
+        beq     1f                      /* if so, try to put a PTE */
+        li      r3,0                    /* into the hash table */
+        mr      r4,r12                  /* SRR0 is fault address */
+        bl      hash_page
+1:      mr      r4,r12
+        mr      r5,r9
+        EXC_XFER_EE_LITE(0x400, handle_page_fault)
+
+/* External interrupt */
+        EXCEPTION(0x500, HardwareInterrupt, do_IRQ, EXC_XFER_LITE)
+
+/* Alignment exception */
+        . = 0x600
+Alignment:
+        EXCEPTION_PROLOG
+        mfspr   r4,SPRN_DAR
+        stw     r4,_DAR(r11)
+        mfspr   r5,SPRN_DSISR
+        stw     r5,_DSISR(r11)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE(0x600, alignment_exception)
+
+/* Program check exception */
+        EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD)
+
+/* Floating-point unavailable */
+        . = 0x800
+FPUnavailable:
+        EXCEPTION_PROLOG
+        bne     load_up_fpu             /* if from user, just load it up */
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception)
+
+/* Decrementer */
+        EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE)
+
+        EXCEPTION(0xa00, Trap_0a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xb00, Trap_0b, unknown_exception, EXC_XFER_EE)
+
+/* System call */
+        . = 0xc00
+SystemCall:
+        EXCEPTION_PROLOG
+        EXC_XFER_EE_LITE(0xc00, DoSyscall)
+
+/* Single step - not used on 601 */
+        EXCEPTION(0xd00, SingleStep, single_step_exception, EXC_XFER_STD)
+        EXCEPTION(0xe00, Trap_0e, unknown_exception, EXC_XFER_EE)
+
+/*
+ * The Altivec unavailable trap is at 0x0f20.  Foo.
+ * We effectively remap it to 0x3000.
+ * We include an altivec unavailable exception vector even if
+ * not configured for Altivec, so that you can't panic a
+ * non-altivec kernel running on a machine with altivec just
+ * by executing an altivec instruction.
+ */
+        . = 0xf00
+        b       Trap_0f
+
+        . = 0xf20
+        b       AltiVecUnavailable
+
+Trap_0f:
+        EXCEPTION_PROLOG
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE(0xf00, unknown_exception)
+
+/*
+ * Handle TLB miss for instruction on 603/603e.
+ * Note: we get an alternate set of r0 - r3 to use automatically.
+ */
+        . = 0x1000
+InstructionTLBMiss:
+/*
+ * r0:  stored ctr
+ * r1:  linux style pte ( later becomes ppc hardware pte )
+ * r2:  ptr to linux-style pte
+ * r3:  scratch
+ */
+        mfctr   r0
+        /* Get PTE (linux-style) and check access */
+        mfspr   r3,SPRN_IMISS
+        lis     r1,KERNELBASE@h         /* check if kernel address */
+        cmplw   0,r3,r1
+        mfspr   r2,SPRN_SPRG3
+        li      r1,_PAGE_USER|_PAGE_PRESENT /* low addresses tested as user */
+        lwz     r2,PGDIR(r2)
+        blt+    112f
+        lis     r2,swapper_pg_dir@ha    /* if kernel address, use */
+        addi    r2,r2,swapper_pg_dir@l  /* kernel page table */
+        mfspr   r1,SPRN_SRR1            /* and MSR_PR bit from SRR1 */
+        rlwinm  r1,r1,32-12,29,29       /* shift MSR_PR to _PAGE_USER posn */
+112:    tophys(r2,r2)
+        rlwimi  r2,r3,12,20,29          /* insert top 10 bits of address */
+        lwz     r2,0(r2)                /* get pmd entry */
+        rlwinm. r2,r2,0,0,19            /* extract address of pte page */
+        beq-    InstructionAddressInvalid       /* return if no mapping */
+        rlwimi  r2,r3,22,20,29          /* insert next 10 bits of address */
+        lwz     r3,0(r2)                /* get linux-style pte */
+        andc.   r1,r1,r3                /* check access & ~permission */
+        bne-    InstructionAddressInvalid /* return if access not permitted */
+        ori     r3,r3,_PAGE_ACCESSED    /* set _PAGE_ACCESSED in pte */
+        /*
+         * NOTE! We are assuming this is not an SMP system, otherwise
+         * we would need to update the pte atomically with lwarx/stwcx.
+         */
+        stw     r3,0(r2)                /* update PTE (accessed bit) */
+        /* Convert linux-style PTE to low word of PPC-style PTE */
+        rlwinm  r1,r3,32-10,31,31       /* _PAGE_RW -> PP lsb */
+        rlwinm  r2,r3,32-7,31,31        /* _PAGE_DIRTY -> PP lsb */
+        and     r1,r1,r2                /* writable if _RW and _DIRTY */
+        rlwimi  r3,r3,32-1,30,30        /* _PAGE_USER -> PP msb */
+        rlwimi  r3,r3,32-1,31,31        /* _PAGE_USER -> PP lsb */
+        ori     r1,r1,0xe14             /* clear out reserved bits and M */
+        andc    r1,r3,r1                /* PP = user? (rw&dirty? 2: 3): 0 */
+        mtspr   SPRN_RPA,r1
+        mfspr   r3,SPRN_IMISS
+        tlbli   r3
+        mfspr   r3,SPRN_SRR1            /* Need to restore CR0 */
+        mtcrf   0x80,r3
+        rfi
+InstructionAddressInvalid:
+        mfspr   r3,SPRN_SRR1
+        rlwinm  r1,r3,9,6,6     /* Get load/store bit */
+
+        addis   r1,r1,0x2000
+        mtspr   SPRN_DSISR,r1   /* (shouldn't be needed) */
+        mtctr   r0              /* Restore CTR */
+        andi.   r2,r3,0xFFFF    /* Clear upper bits of SRR1 */
+        or      r2,r2,r1
+        mtspr   SPRN_SRR1,r2
+        mfspr   r1,SPRN_IMISS   /* Get failing address */
+        rlwinm. r2,r2,0,31,31   /* Check for little endian access */
+        rlwimi  r2,r2,1,30,30   /* change 1 -> 3 */
+        xor     r1,r1,r2
+        mtspr   SPRN_DAR,r1     /* Set fault address */
+        mfmsr   r0              /* Restore "normal" registers */
+        xoris   r0,r0,MSR_TGPR>>16
+        mtcrf   0x80,r3         /* Restore CR0 */
+        mtmsr   r0
+        b       InstructionAccess
+
+/*
+ * Handle TLB miss for DATA Load operation on 603/603e
+ */
+        . = 0x1100
+DataLoadTLBMiss:
+/*
+ * r0:  stored ctr
+ * r1:  linux style pte ( later becomes ppc hardware pte )
+ * r2:  ptr to linux-style pte
+ * r3:  scratch
+ */
+        mfctr   r0
+        /* Get PTE (linux-style) and check access */
+        mfspr   r3,SPRN_DMISS
+        lis     r1,KERNELBASE@h         /* check if kernel address */
+        cmplw   0,r3,r1
+        mfspr   r2,SPRN_SPRG3
+        li      r1,_PAGE_USER|_PAGE_PRESENT /* low addresses tested as user */
+        lwz     r2,PGDIR(r2)
+        blt+    112f
+        lis     r2,swapper_pg_dir@ha    /* if kernel address, use */
+        addi    r2,r2,swapper_pg_dir@l  /* kernel page table */
+        mfspr   r1,SPRN_SRR1            /* and MSR_PR bit from SRR1 */
+        rlwinm  r1,r1,32-12,29,29       /* shift MSR_PR to _PAGE_USER posn */
+112:    tophys(r2,r2)
+        rlwimi  r2,r3,12,20,29          /* insert top 10 bits of address */
+        lwz     r2,0(r2)                /* get pmd entry */
+        rlwinm. r2,r2,0,0,19            /* extract address of pte page */
+        beq-    DataAddressInvalid      /* return if no mapping */
+        rlwimi  r2,r3,22,20,29          /* insert next 10 bits of address */
+        lwz     r3,0(r2)                /* get linux-style pte */
+        andc.   r1,r1,r3                /* check access & ~permission */
+        bne-    DataAddressInvalid      /* return if access not permitted */
+        ori     r3,r3,_PAGE_ACCESSED    /* set _PAGE_ACCESSED in pte */
+        /*
+         * NOTE! We are assuming this is not an SMP system, otherwise
+         * we would need to update the pte atomically with lwarx/stwcx.
+         */
+        stw     r3,0(r2)                /* update PTE (accessed bit) */
+        /* Convert linux-style PTE to low word of PPC-style PTE */
+        rlwinm  r1,r3,32-10,31,31       /* _PAGE_RW -> PP lsb */
+        rlwinm  r2,r3,32-7,31,31        /* _PAGE_DIRTY -> PP lsb */
+        and     r1,r1,r2                /* writable if _RW and _DIRTY */
+        rlwimi  r3,r3,32-1,30,30        /* _PAGE_USER -> PP msb */
+        rlwimi  r3,r3,32-1,31,31        /* _PAGE_USER -> PP lsb */
+        ori     r1,r1,0xe14             /* clear out reserved bits and M */
+        andc    r1,r3,r1                /* PP = user? (rw&dirty? 2: 3): 0 */
+        mtspr   SPRN_RPA,r1
+        mfspr   r3,SPRN_DMISS
+        tlbld   r3
+        mfspr   r3,SPRN_SRR1            /* Need to restore CR0 */
+        mtcrf   0x80,r3
+        rfi
+DataAddressInvalid:
+        mfspr   r3,SPRN_SRR1
+        rlwinm  r1,r3,9,6,6     /* Get load/store bit */
+        addis   r1,r1,0x2000
+        mtspr   SPRN_DSISR,r1
+        mtctr   r0              /* Restore CTR */
+        andi.   r2,r3,0xFFFF    /* Clear upper bits of SRR1 */
+        mtspr   SPRN_SRR1,r2
+        mfspr   r1,SPRN_DMISS   /* Get failing address */
+        rlwinm. r2,r2,0,31,31   /* Check for little endian access */
+        beq     20f             /* Jump if big endian */
+        xori    r1,r1,3
+20:     mtspr   SPRN_DAR,r1     /* Set fault address */
+        mfmsr   r0              /* Restore "normal" registers */
+        xoris   r0,r0,MSR_TGPR>>16
+        mtcrf   0x80,r3         /* Restore CR0 */
+        mtmsr   r0
+        b       DataAccess
+
+/*
+ * Handle TLB miss for DATA Store on 603/603e
+ */
+        . = 0x1200
+DataStoreTLBMiss:
+/*
+ * r0:  stored ctr
+ * r1:  linux style pte ( later becomes ppc hardware pte )
+ * r2:  ptr to linux-style pte
+ * r3:  scratch
+ */
+        mfctr   r0
+        /* Get PTE (linux-style) and check access */
+        mfspr   r3,SPRN_DMISS
+        lis     r1,KERNELBASE@h         /* check if kernel address */
+        cmplw   0,r3,r1
+        mfspr   r2,SPRN_SPRG3
+        li      r1,_PAGE_RW|_PAGE_USER|_PAGE_PRESENT /* access flags */
+        lwz     r2,PGDIR(r2)
+        blt+    112f
+        lis     r2,swapper_pg_dir@ha    /* if kernel address, use */
+        addi    r2,r2,swapper_pg_dir@l  /* kernel page table */
+        mfspr   r1,SPRN_SRR1            /* and MSR_PR bit from SRR1 */
+        rlwinm  r1,r1,32-12,29,29       /* shift MSR_PR to _PAGE_USER posn */
+112:    tophys(r2,r2)
+        rlwimi  r2,r3,12,20,29          /* insert top 10 bits of address */
+        lwz     r2,0(r2)                /* get pmd entry */
+        rlwinm. r2,r2,0,0,19            /* extract address of pte page */
+        beq-    DataAddressInvalid      /* return if no mapping */
+        rlwimi  r2,r3,22,20,29          /* insert next 10 bits of address */
+        lwz     r3,0(r2)                /* get linux-style pte */
+        andc.   r1,r1,r3                /* check access & ~permission */
+        bne-    DataAddressInvalid      /* return if access not permitted */
+        ori     r3,r3,_PAGE_ACCESSED|_PAGE_DIRTY
+        /*
+         * NOTE! We are assuming this is not an SMP system, otherwise
+         * we would need to update the pte atomically with lwarx/stwcx.
+         */
+        stw     r3,0(r2)                /* update PTE (accessed/dirty bits) */
+        /* Convert linux-style PTE to low word of PPC-style PTE */
+        rlwimi  r3,r3,32-1,30,30        /* _PAGE_USER -> PP msb */
+        li      r1,0xe15                /* clear out reserved bits and M */
+        andc    r1,r3,r1                /* PP = user? 2: 0 */
+        mtspr   SPRN_RPA,r1
+        mfspr   r3,SPRN_DMISS
+        tlbld   r3
+        mfspr   r3,SPRN_SRR1            /* Need to restore CR0 */
+        mtcrf   0x80,r3
+        rfi
+
+#ifndef CONFIG_ALTIVEC
+#define altivec_assist_exception        unknown_exception
+#endif
+
+        EXCEPTION(0x1300, Trap_13, instruction_breakpoint_exception, EXC_XFER_EE)
+        EXCEPTION(0x1400, SMI, SMIException, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, altivec_assist_exception, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, TAUException, EXC_XFER_STD)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1a00, Trap_1a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1b00, Trap_1b, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1c00, Trap_1c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2000, RunMode, RunModeException, EXC_XFER_EE)
+        EXCEPTION(0x2100, Trap_21, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2200, Trap_22, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2300, Trap_23, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2400, Trap_24, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2500, Trap_25, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2600, Trap_26, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2700, Trap_27, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2800, Trap_28, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2900, Trap_29, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2a00, Trap_2a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2b00, Trap_2b, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2c00, Trap_2c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2d00, Trap_2d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2e00, Trap_2e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2f00, MOLTrampoline, unknown_exception, EXC_XFER_EE_LITE)
+
+        .globl mol_trampoline
+        .set mol_trampoline, i0x2f00
+
+        . = 0x3000
+
+AltiVecUnavailable:
+        EXCEPTION_PROLOG
+#ifdef CONFIG_ALTIVEC
+        bne     load_up_altivec         /* if from user, just load it up */
+#endif /* CONFIG_ALTIVEC */
+        EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception)
+
+#ifdef CONFIG_ALTIVEC
+/* Note that the AltiVec support is closely modeled after the FP
+ * support.  Changes to one are likely to be applicable to the
+ * other!  */
+load_up_altivec:
+/*
+ * Disable AltiVec for the task which had AltiVec previously,
+ * and save its AltiVec registers in its thread_struct.
+ * Enables AltiVec for use in the kernel on return.
+ * On SMP we know the AltiVec units are free, since we give it up every
+ * switch.  -- Kumar
+ */
+        mfmsr   r5
+        oris    r5,r5,MSR_VEC@h
+        MTMSRD(r5)                      /* enable use of AltiVec now */
+        isync
+/*
+ * For SMP, we don't do lazy AltiVec switching because it just gets too
+ * horrendously complex, especially when a task switches from one CPU
+ * to another.  Instead we call giveup_altivec in switch_to.
+ */
+#ifndef CONFIG_SMP
+        tophys(r6,0)
+        addis   r3,r6,last_task_used_altivec@ha
+        lwz     r4,last_task_used_altivec@l(r3)
+        cmpwi   0,r4,0
+        beq     1f
+        add     r4,r4,r6
+        addi    r4,r4,THREAD    /* want THREAD of last_task_used_altivec */
+        SAVE_32VRS(0,r10,r4)
+        mfvscr  vr0
+        li      r10,THREAD_VSCR
+        stvx    vr0,r10,r4
+        lwz     r5,PT_REGS(r4)
+        add     r5,r5,r6
+        lwz     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        lis     r10,MSR_VEC@h
+        andc    r4,r4,r10       /* disable altivec for previous task */
+        stw     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+1:
+#endif /* CONFIG_SMP */
+        /* enable use of AltiVec after return */
+        oris    r9,r9,MSR_VEC@h
+        mfspr   r5,SPRN_SPRG3           /* current task's THREAD (phys) */
+        li      r4,1
+        li      r10,THREAD_VSCR
+        stw     r4,THREAD_USED_VR(r5)
+        lvx     vr0,r10,r5
+        mtvscr  vr0
+        REST_32VRS(0,r10,r5)
+#ifndef CONFIG_SMP
+        subi    r4,r5,THREAD
+        sub     r4,r4,r6
+        stw     r4,last_task_used_altivec@l(r3)
+#endif /* CONFIG_SMP */
+        /* restore registers and return */
+        /* we haven't used ctr or xer or lr */
+        b       fast_exception_return
+
+/*
+ * AltiVec unavailable trap from kernel - print a message, but let
+ * the task use AltiVec in the kernel until it returns to user mode.
+ */
+KernelAltiVec:
+        lwz     r3,_MSR(r1)
+        oris    r3,r3,MSR_VEC@h
+        stw     r3,_MSR(r1)     /* enable use of AltiVec after return */
+        lis     r3,87f@h
+        ori     r3,r3,87f@l
+        mr      r4,r2           /* current */
+        lwz     r5,_NIP(r1)
+        bl      printk
+        b       ret_from_except
+87:     .string "AltiVec used in kernel  (task=%p, pc=%x)  \n"
+        .align  4,0
+
+/*
+ * giveup_altivec(tsk)
+ * Disable AltiVec for the task given as the argument,
+ * and save the AltiVec registers in its thread_struct.
+ * Enables AltiVec for use in the kernel on return.
+ */
+
+        .globl  giveup_altivec
+giveup_altivec:
+        mfmsr   r5
+        oris    r5,r5,MSR_VEC@h
+        SYNC
+        MTMSRD(r5)                      /* enable use of AltiVec now */
+        isync
+        cmpwi   0,r3,0
+        beqlr-                          /* if no previous owner, done */
+        addi    r3,r3,THREAD            /* want THREAD of task */
+        lwz     r5,PT_REGS(r3)
+        cmpwi   0,r5,0
+        SAVE_32VRS(0, r4, r3)
+        mfvscr  vr0
+        li      r4,THREAD_VSCR
+        stvx    vr0,r4,r3
+        beq     1f
+        lwz     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        lis     r3,MSR_VEC@h
+        andc    r4,r4,r3                /* disable AltiVec for previous task */
+        stw     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+1:
+#ifndef CONFIG_SMP
+        li      r5,0
+        lis     r4,last_task_used_altivec@ha
+        stw     r5,last_task_used_altivec@l(r4)
+#endif /* CONFIG_SMP */
+        blr
+#endif /* CONFIG_ALTIVEC */
+
+/*
+ * This code is jumped to from the startup code to copy
+ * the kernel image to physical address 0.
+ */
+relocate_kernel:
+        addis   r9,r26,klimit@ha        /* fetch klimit */
+        lwz     r25,klimit@l(r9)
+        addis   r25,r25,-KERNELBASE@h
+        li      r3,0                    /* Destination base address */
+        li      r6,0                    /* Destination offset */
+        li      r5,0x4000               /* # bytes of memory to copy */
+        bl      copy_and_flush          /* copy the first 0x4000 bytes */
+        addi    r0,r3,4f@l              /* jump to the address of 4f */
+        mtctr   r0                      /* in copy and do the rest. */
+        bctr                            /* jump to the copy */
+4:      mr      r5,r25
+        bl      copy_and_flush          /* copy the rest */
+        b       turn_on_mmu
+
+/*
+ * Copy routine used to copy the kernel to start at physical address 0
+ * and flush and invalidate the caches as needed.
+ * r3 = dest addr, r4 = source addr, r5 = copy limit, r6 = start offset
+ * on exit, r3, r4, r5 are unchanged, r6 is updated to be >= r5.
+ */
+_GLOBAL(copy_and_flush)
+        addi    r5,r5,-4
+        addi    r6,r6,-4
+4:      li      r0,L1_CACHE_BYTES/4
+        mtctr   r0
+3:      addi    r6,r6,4                 /* copy a cache line */
+        lwzx    r0,r6,r4
+        stwx    r0,r6,r3
+        bdnz    3b
+        dcbst   r6,r3                   /* write it to memory */
+        sync
+        icbi    r6,r3                   /* flush the icache line */
+        cmplw   0,r6,r5
+        blt     4b
+        sync                            /* additional sync needed on g4 */
+        isync
+        addi    r5,r5,4
+        addi    r6,r6,4
+        blr
+
+#ifdef CONFIG_APUS
+/*
+ * On APUS the physical base address of the kernel is not known at compile
+ * time, which means the __pa/__va constants used are incorrect. In the
+ * __init section is recorded the virtual addresses of instructions using
+ * these constants, so all that has to be done is fix these before
+ * continuing the kernel boot.
+ *
+ * r4 = The physical address of the kernel base.
+ */
+fix_mem_constants:
+        mr      r10,r4
+        addis   r10,r10,-KERNELBASE@h    /* virt_to_phys constant */
+        neg     r11,r10                  /* phys_to_virt constant */
+
+        lis     r12,__vtop_table_begin@h
+        ori     r12,r12,__vtop_table_begin@l
+        add     r12,r12,r10              /* table begin phys address */
+        lis     r13,__vtop_table_end@h
+        ori     r13,r13,__vtop_table_end@l
+        add     r13,r13,r10              /* table end phys address */
+        subi    r12,r12,4
+        subi    r13,r13,4
+1:      lwzu    r14,4(r12)               /* virt address of instruction */
+        add     r14,r14,r10              /* phys address of instruction */
+        lwz     r15,0(r14)               /* instruction, now insert top */
+        rlwimi  r15,r10,16,16,31         /* half of vp const in low half */
+        stw     r15,0(r14)               /* of instruction and restore. */
+        dcbst   r0,r14                   /* write it to memory */
+        sync
+        icbi    r0,r14                   /* flush the icache line */
+        cmpw    r12,r13
+        bne     1b
+        sync                            /* additional sync needed on g4 */
+        isync
+
+/*
+ * Map the memory where the exception handlers will
+ * be copied to when hash constants have been patched.
+ */
+#ifdef CONFIG_APUS_FAST_EXCEPT
+        lis     r8,0xfff0
+#else
+        lis     r8,0
+#endif
+        ori     r8,r8,0x2               /* 128KB, supervisor */
+        mtspr   SPRN_DBAT3U,r8
+        mtspr   SPRN_DBAT3L,r8
+
+        lis     r12,__ptov_table_begin@h
+        ori     r12,r12,__ptov_table_begin@l
+        add     r12,r12,r10              /* table begin phys address */
+        lis     r13,__ptov_table_end@h
+        ori     r13,r13,__ptov_table_end@l
+        add     r13,r13,r10              /* table end phys address */
+        subi    r12,r12,4
+        subi    r13,r13,4
+1:      lwzu    r14,4(r12)               /* virt address of instruction */
+        add     r14,r14,r10              /* phys address of instruction */
+        lwz     r15,0(r14)               /* instruction, now insert top */
+        rlwimi  r15,r11,16,16,31         /* half of pv const in low half*/
+        stw     r15,0(r14)               /* of instruction and restore. */
+        dcbst   r0,r14                   /* write it to memory */
+        sync
+        icbi    r0,r14                   /* flush the icache line */
+        cmpw    r12,r13
+        bne     1b
+
+        sync                            /* additional sync needed on g4 */
+        isync                           /* No speculative loading until now */
+        blr
+
+/***********************************************************************
+ *  Please note that on APUS the exception handlers are located at the
+ *  physical address 0xfff0000. For this reason, the exception handlers
+ *  cannot use relative branches to access the code below.
+ ***********************************************************************/
+#endif /* CONFIG_APUS */
+
+#ifdef CONFIG_SMP
+#ifdef CONFIG_GEMINI
+        .globl  __secondary_start_gemini
+__secondary_start_gemini:
+        mfspr   r4,SPRN_HID0
+        ori     r4,r4,HID0_ICFI
+        li      r3,0
+        ori     r3,r3,HID0_ICE
+        andc    r4,r4,r3
+        mtspr   SPRN_HID0,r4
+        sync
+        b       __secondary_start
+#endif /* CONFIG_GEMINI */
+
+        .globl  __secondary_start_pmac_0
+__secondary_start_pmac_0:
+        /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
+        li      r24,0
+        b       1f
+        li      r24,1
+        b       1f
+        li      r24,2
+        b       1f
+        li      r24,3
+1:
+        /* on powersurge, we come in here with IR=0 and DR=1, and DBAT 0
+           set to map the 0xf0000000 - 0xffffffff region */
+        mfmsr   r0
+        rlwinm  r0,r0,0,28,26           /* clear DR (0x10) */
+        SYNC
+        mtmsr   r0
+        isync
+
+        .globl  __secondary_start
+__secondary_start:
+        /* Copy some CPU settings from CPU 0 */
+        bl      __restore_cpu_setup
+
+        lis     r3,-KERNELBASE@h
+        mr      r4,r24
+        bl      call_setup_cpu          /* Call setup_cpu for this CPU */
+#ifdef CONFIG_6xx
+        lis     r3,-KERNELBASE@h
+        bl      init_idle_6xx
+#endif /* CONFIG_6xx */
+
+        /* get current_thread_info and current */
+        lis     r1,secondary_ti@ha
+        tophys(r1,r1)
+        lwz     r1,secondary_ti@l(r1)
+        tophys(r2,r1)
+        lwz     r2,TI_TASK(r2)
+
+        /* stack */
+        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
+        li      r0,0
+        tophys(r3,r1)
+        stw     r0,0(r3)
+
+        /* load up the MMU */
+        bl      load_up_mmu
+
+        /* ptr to phys current thread */
+        tophys(r4,r2)
+        addi    r4,r4,THREAD    /* phys address of our thread_struct */
+        CLR_TOP32(r4)
+        mtspr   SPRN_SPRG3,r4
+        li      r3,0
+        mtspr   SPRN_SPRG2,r3   /* 0 => not in RTAS */
+
+        /* enable MMU and jump to start_secondary */
+        li      r4,MSR_KERNEL
+        FIX_SRR1(r4,r5)
+        lis     r3,start_secondary@h
+        ori     r3,r3,start_secondary@l
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
+        SYNC
+        RFI
+#endif /* CONFIG_SMP */
+
+/*
+ * Those generic dummy functions are kept for CPUs not
+ * included in CONFIG_6xx
+ */
+#if !defined(CONFIG_6xx)
+_GLOBAL(__save_cpu_setup)
+        blr
+_GLOBAL(__restore_cpu_setup)
+        blr
+#endif /* !defined(CONFIG_6xx) */
+
+
+/*
+ * Load stuff into the MMU.  Intended to be called with
+ * IR=0 and DR=0.
+ */
+load_up_mmu:
+        sync                    /* Force all PTE updates to finish */
+        isync
+        tlbia                   /* Clear all TLB entries */
+        sync                    /* wait for tlbia/tlbie to finish */
+        TLBSYNC                 /* ... on all CPUs */
+        /* Load the SDR1 register (hash table base & size) */
+        lis     r6,_SDR1@ha
+        tophys(r6,r6)
+        lwz     r6,_SDR1@l(r6)
+        mtspr   SPRN_SDR1,r6
+        li      r0,16           /* load up segment register values */
+        mtctr   r0              /* for context 0 */
+        lis     r3,0x2000       /* Ku = 1, VSID = 0 */
+        li      r4,0
+3:      mtsrin  r3,r4
+        addi    r3,r3,0x111     /* increment VSID */
+        addis   r4,r4,0x1000    /* address of next segment */
+        bdnz    3b
+
+/* Load the BAT registers with the values set up by MMU_init.
+   MMU_init takes care of whether we're on a 601 or not. */
+        mfpvr   r3
+        srwi    r3,r3,16
+        cmpwi   r3,1
+        lis     r3,BATS@ha
+        addi    r3,r3,BATS@l
+        tophys(r3,r3)
+        LOAD_BAT(0,r3,r4,r5)
+        LOAD_BAT(1,r3,r4,r5)
+        LOAD_BAT(2,r3,r4,r5)
+        LOAD_BAT(3,r3,r4,r5)
+
+        blr
+
+/*
+ * This is where the main kernel code starts.
+ */
+start_here:
+        /* ptr to current */
+        lis     r2,init_task@h
+        ori     r2,r2,init_task@l
+        /* Set up for using our exception vectors */
+        /* ptr to phys current thread */
+        tophys(r4,r2)
+        addi    r4,r4,THREAD    /* init task's THREAD */
+        CLR_TOP32(r4)
+        mtspr   SPRN_SPRG3,r4
+        li      r3,0
+        mtspr   SPRN_SPRG2,r3   /* 0 => not in RTAS */
+
+        /* stack */
+        lis     r1,init_thread_union@ha
+        addi    r1,r1,init_thread_union@l
+        li      r0,0
+        stwu    r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
+/*
+ * Do early platform-specific initialization,
+ * and set up the MMU.
+ */
+        mr      r3,r31
+        mr      r4,r30
+        bl      machine_init
+        bl      MMU_init
+
+#ifdef CONFIG_APUS
+        /* Copy exception code to exception vector base on APUS. */
+        lis     r4,KERNELBASE@h
+#ifdef CONFIG_APUS_FAST_EXCEPT
+        lis     r3,0xfff0               /* Copy to 0xfff00000 */
+#else
+        lis     r3,0                    /* Copy to 0x00000000 */
+#endif
+        li      r5,0x4000               /* # bytes of memory to copy */
+        li      r6,0
+        bl      copy_and_flush          /* copy the first 0x4000 bytes */
+#endif  /* CONFIG_APUS */
+
+/*
+ * Go back to running unmapped so we can load up new values
+ * for SDR1 (hash table pointer) and the segment registers
+ * and change to using our exception vectors.
+ */
+        lis     r4,2f@h
+        ori     r4,r4,2f@l
+        tophys(r4,r4)
+        li      r3,MSR_KERNEL & ~(MSR_IR|MSR_DR)
+        FIX_SRR1(r3,r5)
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        SYNC
+        RFI
+/* Load up the kernel context */
+2:      bl      load_up_mmu
+
+#ifdef CONFIG_BDI_SWITCH
+        /* Add helper information for the Abatron bdiGDB debugger.
+         * We do this here because we know the mmu is disabled, and
+         * will be enabled for real in just a few instructions.
+         */
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        stw     r5, 0xf0(r0)    /* This much match your Abatron config */
+        lis     r6, swapper_pg_dir@h
+        ori     r6, r6, swapper_pg_dir@l
+        tophys(r5, r5)
+        stw     r6, 0(r5)
+#endif /* CONFIG_BDI_SWITCH */
+
+/* Now turn on the MMU for real! */
+        li      r4,MSR_KERNEL
+        FIX_SRR1(r4,r5)
+        lis     r3,start_kernel@h
+        ori     r3,r3,start_kernel@l
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
+        SYNC
+        RFI
+
+/*
+ * Set up the segment registers for a new context.
+ */
+_GLOBAL(set_context)
+        mulli   r3,r3,897       /* multiply context by skew factor */
+        rlwinm  r3,r3,4,8,27    /* VSID = (context & 0xfffff) << 4 */
+        addis   r3,r3,0x6000    /* Set Ks, Ku bits */
+        li      r0,NUM_USER_SEGMENTS
+        mtctr   r0
+
+#ifdef CONFIG_BDI_SWITCH
+        /* Context switch the PTE pointer for the Abatron BDI2000.
+         * The PGDIR is passed as second argument.
+         */
+        lis     r5, KERNELBASE@h
+        lwz     r5, 0xf0(r5)
+        stw     r4, 0x4(r5)
+#endif
+        li      r4,0
+        isync
+3:
+        mtsrin  r3,r4
+        addi    r3,r3,0x111     /* next VSID */
+        rlwinm  r3,r3,0,8,3     /* clear out any overflow from VSID field */
+        addis   r4,r4,0x1000    /* address of next segment */
+        bdnz    3b
+        sync
+        isync
+        blr
+
+/*
+ * An undocumented "feature" of 604e requires that the v bit
+ * be cleared before changing BAT values.
+ *
+ * Also, newer IBM firmware does not clear bat3 and 4 so
+ * this makes sure it's done.
+ *  -- Cort
+ */
+clear_bats:
+        li      r10,0
+        mfspr   r9,SPRN_PVR
+        rlwinm  r9,r9,16,16,31          /* r9 = 1 for 601, 4 for 604 */
+        cmpwi   r9, 1
+        beq     1f
+
+        mtspr   SPRN_DBAT0U,r10
+        mtspr   SPRN_DBAT0L,r10
+        mtspr   SPRN_DBAT1U,r10
+        mtspr   SPRN_DBAT1L,r10
+        mtspr   SPRN_DBAT2U,r10
+        mtspr   SPRN_DBAT2L,r10
+        mtspr   SPRN_DBAT3U,r10
+        mtspr   SPRN_DBAT3L,r10
+1:
+        mtspr   SPRN_IBAT0U,r10
+        mtspr   SPRN_IBAT0L,r10
+        mtspr   SPRN_IBAT1U,r10
+        mtspr   SPRN_IBAT1L,r10
+        mtspr   SPRN_IBAT2U,r10
+        mtspr   SPRN_IBAT2L,r10
+        mtspr   SPRN_IBAT3U,r10
+        mtspr   SPRN_IBAT3L,r10
+BEGIN_FTR_SECTION
+        /* Here's a tweak: at this point, CPU setup have
+         * not been called yet, so HIGH_BAT_EN may not be
+         * set in HID0 for the 745x processors. However, it
+         * seems that doesn't affect our ability to actually
+         * write to these SPRs.
+         */
+        mtspr   SPRN_DBAT4U,r10
+        mtspr   SPRN_DBAT4L,r10
+        mtspr   SPRN_DBAT5U,r10
+        mtspr   SPRN_DBAT5L,r10
+        mtspr   SPRN_DBAT6U,r10
+        mtspr   SPRN_DBAT6L,r10
+        mtspr   SPRN_DBAT7U,r10
+        mtspr   SPRN_DBAT7L,r10
+        mtspr   SPRN_IBAT4U,r10
+        mtspr   SPRN_IBAT4L,r10
+        mtspr   SPRN_IBAT5U,r10
+        mtspr   SPRN_IBAT5L,r10
+        mtspr   SPRN_IBAT6U,r10
+        mtspr   SPRN_IBAT6L,r10
+        mtspr   SPRN_IBAT7U,r10
+        mtspr   SPRN_IBAT7L,r10
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
+        blr
+
+flush_tlbs:
+        lis     r10, 0x40
+1:      addic.  r10, r10, -0x1000
+        tlbie   r10
+        blt     1b
+        sync
+        blr
+
+mmu_off:
+        addi    r4, r3, __after_mmu_off - _start
+        mfmsr   r3
+        andi.   r0,r3,MSR_DR|MSR_IR             /* MMU enabled? */
+        beqlr
+        andc    r3,r3,r0
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        sync
+        RFI
+
+/*
+ * Use the first pair of BAT registers to map the 1st 16MB
+ * of RAM to KERNELBASE.  From this point on we can't safely
+ * call OF any more.
+ */
+initial_bats:
+        lis     r11,KERNELBASE@h
+        mfspr   r9,SPRN_PVR
+        rlwinm  r9,r9,16,16,31          /* r9 = 1 for 601, 4 for 604 */
+        cmpwi   0,r9,1
+        bne     4f
+        ori     r11,r11,4               /* set up BAT registers for 601 */
+        li      r8,0x7f                 /* valid, block length = 8MB */
+        oris    r9,r11,0x800000@h       /* set up BAT reg for 2nd 8M */
+        oris    r10,r8,0x800000@h       /* set up BAT reg for 2nd 8M */
+        mtspr   SPRN_IBAT0U,r11         /* N.B. 601 has valid bit in */
+        mtspr   SPRN_IBAT0L,r8          /* lower BAT register */
+        mtspr   SPRN_IBAT1U,r9
+        mtspr   SPRN_IBAT1L,r10
+        isync
+        blr
+
+4:      tophys(r8,r11)
+#ifdef CONFIG_SMP
+        ori     r8,r8,0x12              /* R/W access, M=1 */
+#else
+        ori     r8,r8,2                 /* R/W access */
+#endif /* CONFIG_SMP */
+#ifdef CONFIG_APUS
+        ori     r11,r11,BL_8M<<2|0x2    /* set up 8MB BAT registers for 604 */
+#else
+        ori     r11,r11,BL_256M<<2|0x2  /* set up BAT registers for 604 */
+#endif /* CONFIG_APUS */
+
+        mtspr   SPRN_DBAT0L,r8          /* N.B. 6xx (not 601) have valid */
+        mtspr   SPRN_DBAT0U,r11         /* bit in upper BAT register */
+        mtspr   SPRN_IBAT0L,r8
+        mtspr   SPRN_IBAT0U,r11
+        isync
+        blr
+
+
+#ifdef CONFIG_8260
+/* Jump into the system reset for the rom.
+ * We first disable the MMU, and then jump to the ROM reset address.
+ *
+ * r3 is the board info structure, r4 is the location for starting.
+ * I use this for building a small kernel that can load other kernels,
+ * rather than trying to write or rely on a rom monitor that can tftp load.
+ */
+       .globl  m8260_gorom
+m8260_gorom:
+        mfmsr   r0
+        rlwinm  r0,r0,0,17,15   /* clear MSR_EE in r0 */
+        sync
+        mtmsr   r0
+        sync
+        mfspr   r11, SPRN_HID0
+        lis     r10, 0
+        ori     r10,r10,HID0_ICE|HID0_DCE
+        andc    r11, r11, r10
+        mtspr   SPRN_HID0, r11
+        isync
+        li      r5, MSR_ME|MSR_RI
+        lis     r6,2f@h
+        addis   r6,r6,-KERNELBASE@h
+        ori     r6,r6,2f@l
+        mtspr   SPRN_SRR0,r6
+        mtspr   SPRN_SRR1,r5
+        isync
+        sync
+        rfi
+2:
+        mtlr    r4
+        blr
+#endif
+
+
+/*
+ * We put a few things here that have to be page-aligned.
+ * This stuff goes at the beginning of the data segment,
+ * which is page-aligned.
+ */
+        .data
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
+        .space  4096
+
+        .globl  swapper_pg_dir
+swapper_pg_dir:
+        .space  4096
+
+/*
+ * This space gets a copy of optional info passed to us by the bootstrap
+ * Used to pass parameters into the kernel like root=/dev/sda1, etc.
+ */
+        .globl  cmd_line
+cmd_line:
+        .space  512
+
+        .globl intercept_table
+intercept_table:
+        .long 0, 0, i0x200, i0x300, i0x400, 0, i0x600, i0x700
+        .long i0x800, 0, 0, 0, 0, i0xd00, 0, 0
+        .long 0, 0, 0, i0x1300, 0, 0, 0, 0
+        .long 0, 0, 0, 0, 0, 0, 0, 0
+        .long 0, 0, 0, 0, 0, 0, 0, 0
+        .long 0, 0, 0, 0, 0, 0, 0, 0
+
+/* Room for two PTE pointers, usually the kernel and current user pointers
+ * to their respective root page table.
+ */
+abatron_pteptrs:
+        .space  8
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
new file mode 100644
index 000000000000..8b49679fad54
--- /dev/null
+++ b/arch/powerpc/kernel/head_44x.S
@@ -0,0 +1,782 @@
+/*
+ * arch/ppc/kernel/head_44x.S
+ *
+ * Kernel execution entry point code.
+ *
+ *    Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
+ *      Initial PowerPC version.
+ *    Copyright (c) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *      Rewritten for PReP
+ *    Copyright (c) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
+ *      Low-level exception handers, MMU support, and rewrite.
+ *    Copyright (c) 1997 Dan Malek <dmalek@jlc.net>
+ *      PowerPC 8xx modifications.
+ *    Copyright (c) 1998-1999 TiVo, Inc.
+ *      PowerPC 403GCX modifications.
+ *    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
+ *      PowerPC 403GCX/405GP modifications.
+ *    Copyright 2000 MontaVista Software Inc.
+ *      PPC405 modifications
+ *      PowerPC 403GCX/405GP modifications.
+ *      Author: MontaVista Software, Inc.
+ *              frank_rowand@mvista.com or source@mvista.com
+ *              debbie_chu@mvista.com
+ *    Copyright 2002-2005 MontaVista Software, Inc.
+ *      PowerPC 44x support, Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/ibm4xx.h>
+#include <asm/ibm44x.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+#include "head_booke.h"
+
+
+/* As with the other PowerPC ports, it is expected that when code
+ * execution begins here, the following registers contain valid, yet
+ * optional, information:
+ *
+ *   r3 - Board info structure pointer (DRAM, frequency, MAC address, etc.)
+ *   r4 - Starting address of the init RAM disk
+ *   r5 - Ending address of the init RAM disk
+ *   r6 - Start of kernel command line string (e.g. "mem=128")
+ *   r7 - End of kernel command line string
+ *
+ */
+        .text
+_GLOBAL(_stext)
+_GLOBAL(_start)
+        /*
+         * Reserve a word at a fixed location to store the address
+         * of abatron_pteptrs
+         */
+        nop
+/*
+ * Save parameters we are passed
+ */
+        mr      r31,r3
+        mr      r30,r4
+        mr      r29,r5
+        mr      r28,r6
+        mr      r27,r7
+        li      r24,0           /* CPU number */
+
+/*
+ * Set up the initial MMU state
+ *
+ * We are still executing code at the virtual address
+ * mappings set by the firmware for the base of RAM.
+ *
+ * We first invalidate all TLB entries but the one
+ * we are running from.  We then load the KERNELBASE
+ * mappings so we can begin to use kernel addresses
+ * natively and so the interrupt vector locations are
+ * permanently pinned (necessary since Book E
+ * implementations always have translation enabled).
+ *
+ * TODO: Use the known TLB entry we are running from to
+ *       determine which physical region we are located
+ *       in.  This can be used to determine where in RAM
+ *       (on a shared CPU system) or PCI memory space
+ *       (on a DRAMless system) we are located.
+ *       For now, we assume a perfect world which means
+ *       we are located at the base of DRAM (physical 0).
+ */
+
+/*
+ * Search TLB for entry that we are currently using.
+ * Invalidate all entries but the one we are using.
+ */
+        /* Load our current PID->MMUCR TID and MSR IS->MMUCR STS */
+        mfspr   r3,SPRN_PID                     /* Get PID */
+        mfmsr   r4                              /* Get MSR */
+        andi.   r4,r4,MSR_IS@l                  /* TS=1? */
+        beq     wmmucr                          /* If not, leave STS=0 */
+        oris    r3,r3,PPC44x_MMUCR_STS@h        /* Set STS=1 */
+wmmucr: mtspr   SPRN_MMUCR,r3                   /* Put MMUCR */
+        sync
+
+        bl      invstr                          /* Find our address */
+invstr: mflr    r5                              /* Make it accessible */
+        tlbsx   r23,0,r5                        /* Find entry we are in */
+        li      r4,0                            /* Start at TLB entry 0 */
+        li      r3,0                            /* Set PAGEID inval value */
+1:      cmpw    r23,r4                          /* Is this our entry? */
+        beq     skpinv                          /* If so, skip the inval */
+        tlbwe   r3,r4,PPC44x_TLB_PAGEID         /* If not, inval the entry */
+skpinv: addi    r4,r4,1                         /* Increment */
+        cmpwi   r4,64                           /* Are we done? */
+        bne     1b                              /* If not, repeat */
+        isync                                   /* If so, context change */
+
+/*
+ * Configure and load pinned entry into TLB slot 63.
+ */
+
+        lis     r3,KERNELBASE@h         /* Load the kernel virtual address */
+        ori     r3,r3,KERNELBASE@l
+
+        /* Kernel is at the base of RAM */
+        li r4, 0                        /* Load the kernel physical address */
+
+        /* Load the kernel PID = 0 */
+        li      r0,0
+        mtspr   SPRN_PID,r0
+        sync
+
+        /* Initialize MMUCR */
+        li      r5,0
+        mtspr   SPRN_MMUCR,r5
+        sync
+
+        /* pageid fields */
+        clrrwi  r3,r3,10                /* Mask off the effective page number */
+        ori     r3,r3,PPC44x_TLB_VALID | PPC44x_TLB_256M
+
+        /* xlat fields */
+        clrrwi  r4,r4,10                /* Mask off the real page number */
+                                        /* ERPN is 0 for first 4GB page */
+
+        /* attrib fields */
+        /* Added guarded bit to protect against speculative loads/stores */
+        li      r5,0
+        ori     r5,r5,(PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_SX | PPC44x_TLB_G)
+
+        li      r0,63                    /* TLB slot 63 */
+
+        tlbwe   r3,r0,PPC44x_TLB_PAGEID /* Load the pageid fields */
+        tlbwe   r4,r0,PPC44x_TLB_XLAT   /* Load the translation fields */
+        tlbwe   r5,r0,PPC44x_TLB_ATTRIB /* Load the attrib/access fields */
+
+        /* Force context change */
+        mfmsr   r0
+        mtspr   SPRN_SRR1, r0
+        lis     r0,3f@h
+        ori     r0,r0,3f@l
+        mtspr   SPRN_SRR0,r0
+        sync
+        rfi
+
+        /* If necessary, invalidate original entry we used */
+3:      cmpwi   r23,63
+        beq     4f
+        li      r6,0
+        tlbwe   r6,r23,PPC44x_TLB_PAGEID
+        isync
+
+4:
+#ifdef CONFIG_SERIAL_TEXT_DEBUG
+        /*
+         * Add temporary UART mapping for early debug.
+         * We can map UART registers wherever we want as long as they don't
+         * interfere with other system mappings (e.g. with pinned entries).
+         * For an example of how we handle this - see ocotea.h.       --ebs
+         */
+        /* pageid fields */
+        lis     r3,UART0_IO_BASE@h
+        ori     r3,r3,PPC44x_TLB_VALID | PPC44x_TLB_4K
+
+        /* xlat fields */
+        lis     r4,UART0_PHYS_IO_BASE@h         /* RPN depends on SoC */
+#ifndef CONFIG_440EP
+        ori     r4,r4,0x0001            /* ERPN is 1 for second 4GB page */
+#endif
+
+        /* attrib fields */
+        li      r5,0
+        ori     r5,r5,(PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_I | PPC44x_TLB_G)
+
+        li      r0,0                    /* TLB slot 0 */
+
+        tlbwe   r3,r0,PPC44x_TLB_PAGEID /* Load the pageid fields */
+        tlbwe   r4,r0,PPC44x_TLB_XLAT   /* Load the translation fields */
+        tlbwe   r5,r0,PPC44x_TLB_ATTRIB /* Load the attrib/access fields */
+
+        /* Force context change */
+        isync
+#endif /* CONFIG_SERIAL_TEXT_DEBUG */
+
+        /* Establish the interrupt vector offsets */
+        SET_IVOR(0,  CriticalInput);
+        SET_IVOR(1,  MachineCheck);
+        SET_IVOR(2,  DataStorage);
+        SET_IVOR(3,  InstructionStorage);
+        SET_IVOR(4,  ExternalInput);
+        SET_IVOR(5,  Alignment);
+        SET_IVOR(6,  Program);
+        SET_IVOR(7,  FloatingPointUnavailable);
+        SET_IVOR(8,  SystemCall);
+        SET_IVOR(9,  AuxillaryProcessorUnavailable);
+        SET_IVOR(10, Decrementer);
+        SET_IVOR(11, FixedIntervalTimer);
+        SET_IVOR(12, WatchdogTimer);
+        SET_IVOR(13, DataTLBError);
+        SET_IVOR(14, InstructionTLBError);
+        SET_IVOR(15, Debug);
+
+        /* Establish the interrupt vector base */
+        lis     r4,interrupt_base@h     /* IVPR only uses the high 16-bits */
+        mtspr   SPRN_IVPR,r4
+
+#ifdef CONFIG_440EP
+        /* Clear DAPUIB flag in CCR0 (enable APU between CPU and FPU) */
+        mfspr   r2,SPRN_CCR0
+        lis     r3,0xffef
+        ori     r3,r3,0xffff
+        and     r2,r2,r3
+        mtspr   SPRN_CCR0,r2
+        isync
+#endif
+
+        /*
+         * This is where the main kernel code starts.
+         */
+
+        /* ptr to current */
+        lis     r2,init_task@h
+        ori     r2,r2,init_task@l
+
+        /* ptr to current thread */
+        addi    r4,r2,THREAD    /* init task's THREAD */
+        mtspr   SPRN_SPRG3,r4
+
+        /* stack */
+        lis     r1,init_thread_union@h
+        ori     r1,r1,init_thread_union@l
+        li      r0,0
+        stwu    r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
+
+        bl      early_init
+
+/*
+ * Decide what sort of machine this is and initialize the MMU.
+ */
+        mr      r3,r31
+        mr      r4,r30
+        mr      r5,r29
+        mr      r6,r28
+        mr      r7,r27
+        bl      machine_init
+        bl      MMU_init
+
+        /* Setup PTE pointers for the Abatron bdiGDB */
+        lis     r6, swapper_pg_dir@h
+        ori     r6, r6, swapper_pg_dir@l
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        lis     r4, KERNELBASE@h
+        ori     r4, r4, KERNELBASE@l
+        stw     r5, 0(r4)       /* Save abatron_pteptrs at a fixed location */
+        stw     r6, 0(r5)
+
+        /* Let's move on */
+        lis     r4,start_kernel@h
+        ori     r4,r4,start_kernel@l
+        lis     r3,MSR_KERNEL@h
+        ori     r3,r3,MSR_KERNEL@l
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        rfi                     /* change context and jump to start_kernel */
+
+/*
+ * Interrupt vector entry code
+ *
+ * The Book E MMUs are always on so we don't need to handle
+ * interrupts in real mode as with previous PPC processors. In
+ * this case we handle interrupts in the kernel virtual address
+ * space.
+ *
+ * Interrupt vectors are dynamically placed relative to the
+ * interrupt prefix as determined by the address of interrupt_base.
+ * The interrupt vectors offsets are programmed using the labels
+ * for each interrupt vector entry.
+ *
+ * Interrupt vectors must be aligned on a 16 byte boundary.
+ * We align on a 32 byte cache line boundary for good measure.
+ */
+
+interrupt_base:
+        /* Critical Input Interrupt */
+        CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
+
+        /* Machine Check Interrupt */
+#ifdef CONFIG_440A
+        MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
+#else
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
+#endif
+
+        /* Data Storage Interrupt */
+        START_EXCEPTION(DataStorage)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+        mtspr   SPRN_SPRG4W, r12
+        mtspr   SPRN_SPRG5W, r13
+        mfcr    r11
+        mtspr   SPRN_SPRG7W, r11
+
+        /*
+         * Check if it was a store fault, if not then bail
+         * because a user tried to access a kernel or
+         * read-protected page.  Otherwise, get the
+         * offending address and handle it.
+         */
+        mfspr   r10, SPRN_ESR
+        andis.  r10, r10, ESR_ST@h
+        beq     2f
+
+        mfspr   r10, SPRN_DEAR          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        cmplw   r10, r11
+        blt+    3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+
+        mfspr   r12,SPRN_MMUCR
+        rlwinm  r12,r12,0,0,23          /* Clear TID */
+
+        b       4f
+
+        /* Get the PGD for the current thread */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+
+        /* Load PID into MMUCR TID */
+        mfspr   r12,SPRN_MMUCR          /* Get MMUCR */
+        mfspr   r13,SPRN_PID            /* Get PID */
+        rlwimi  r12,r13,0,24,31         /* Set TID */
+
+4:
+        mtspr   SPRN_MMUCR,r12
+
+        rlwinm  r12, r10, 13, 19, 29    /* Compute pgdir/pmd offset */
+        lwzx    r11, r12, r11           /* Get pgd/pmd entry */
+        rlwinm. r12, r11, 0, 0, 20      /* Extract pt base address */
+        beq     2f                      /* Bail if no table */
+
+        rlwimi  r12, r10, 23, 20, 28    /* Compute pte address */
+        lwz     r11, 4(r12)             /* Get pte entry */
+
+        andi.   r13, r11, _PAGE_RW      /* Is it writeable? */
+        beq     2f                      /* Bail if not */
+
+        /* Update 'changed'.
+        */
+        ori     r11, r11, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE
+        stw     r11, 4(r12)             /* Update Linux page table */
+
+        li      r13, PPC44x_TLB_SR@l    /* Set SR */
+        rlwimi  r13, r11, 29, 29, 29    /* SX = _PAGE_HWEXEC */
+        rlwimi  r13, r11, 0, 30, 30     /* SW = _PAGE_RW */
+        rlwimi  r13, r11, 29, 28, 28    /* UR = _PAGE_USER */
+        rlwimi  r12, r11, 31, 26, 26    /* (_PAGE_USER>>1)->r12 */
+        rlwimi  r12, r11, 29, 30, 30    /* (_PAGE_USER>>3)->r12 */
+        and     r12, r12, r11           /* HWEXEC/RW & USER */
+        rlwimi  r13, r12, 0, 26, 26     /* UX = HWEXEC & USER */
+        rlwimi  r13, r12, 3, 27, 27     /* UW = RW & USER */
+
+        rlwimi  r11,r13,0,26,31         /* Insert static perms */
+
+        rlwinm  r11,r11,0,20,15         /* Clear U0-U3 */
+
+        /* find the TLB index that caused the fault.  It has to be here. */
+        tlbsx   r10, 0, r10
+
+        tlbwe   r11, r10, PPC44x_TLB_ATTRIB     /* Write ATTRIB */
+
+        /* Done...restore registers and get out of here.
+        */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        rfi                     /* Force context change */
+
+2:
+        /*
+         * The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       data_access
+
+        /* Instruction Storage Interrupt */
+        INSTRUCTION_STORAGE_EXCEPTION
+
+        /* External Input Interrupt */
+        EXCEPTION(0x0500, ExternalInput, do_IRQ, EXC_XFER_LITE)
+
+        /* Alignment Interrupt */
+        ALIGNMENT_EXCEPTION
+
+        /* Program Interrupt */
+        PROGRAM_EXCEPTION
+
+        /* Floating Point Unavailable Interrupt */
+#ifdef CONFIG_PPC_FPU
+        FP_UNAVAILABLE_EXCEPTION
+#else
+        EXCEPTION(0x2010, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
+#endif
+
+        /* System Call Interrupt */
+        START_EXCEPTION(SystemCall)
+        NORMAL_EXCEPTION_PROLOG
+        EXC_XFER_EE_LITE(0x0c00, DoSyscall)
+
+        /* Auxillary Processor Unavailable Interrupt */
+        EXCEPTION(0x2020, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
+
+        /* Decrementer Interrupt */
+        DECREMENTER_EXCEPTION
+
+        /* Fixed Internal Timer Interrupt */
+        /* TODO: Add FIT support */
+        EXCEPTION(0x1010, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
+
+        /* Watchdog Timer Interrupt */
+        /* TODO: Add watchdog support */
+#ifdef CONFIG_BOOKE_WDT
+        CRITICAL_EXCEPTION(0x1020, WatchdogTimer, WatchdogException)
+#else
+        CRITICAL_EXCEPTION(0x1020, WatchdogTimer, unknown_exception)
+#endif
+
+        /* Data TLB Error Interrupt */
+        START_EXCEPTION(DataTLBError)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+        mtspr   SPRN_SPRG4W, r12
+        mtspr   SPRN_SPRG5W, r13
+        mfcr    r11
+        mtspr   SPRN_SPRG7W, r11
+        mfspr   r10, SPRN_DEAR          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        cmplw   r10, r11
+        blt+    3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+
+        mfspr   r12,SPRN_MMUCR
+        rlwinm  r12,r12,0,0,23          /* Clear TID */
+
+        b       4f
+
+        /* Get the PGD for the current thread */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+
+        /* Load PID into MMUCR TID */
+        mfspr   r12,SPRN_MMUCR
+        mfspr   r13,SPRN_PID            /* Get PID */
+        rlwimi  r12,r13,0,24,31         /* Set TID */
+
+4:
+        mtspr   SPRN_MMUCR,r12
+
+        rlwinm  r12, r10, 13, 19, 29    /* Compute pgdir/pmd offset */
+        lwzx    r11, r12, r11           /* Get pgd/pmd entry */
+        rlwinm. r12, r11, 0, 0, 20      /* Extract pt base address */
+        beq     2f                      /* Bail if no table */
+
+        rlwimi  r12, r10, 23, 20, 28    /* Compute pte address */
+        lwz     r11, 4(r12)             /* Get pte entry */
+        andi.   r13, r11, _PAGE_PRESENT /* Is the page present? */
+        beq     2f                      /* Bail if not present */
+
+        ori     r11, r11, _PAGE_ACCESSED
+        stw     r11, 4(r12)
+
+         /* Jump to common tlb load */
+        b       finish_tlb_load
+
+2:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       data_access
+
+        /* Instruction TLB Error Interrupt */
+        /*
+         * Nearly the same as above, except we get our
+         * information from different registers and bailout
+         * to a different point.
+         */
+        START_EXCEPTION(InstructionTLBError)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+        mtspr   SPRN_SPRG4W, r12
+        mtspr   SPRN_SPRG5W, r13
+        mfcr    r11
+        mtspr   SPRN_SPRG7W, r11
+        mfspr   r10, SPRN_SRR0          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        cmplw   r10, r11
+        blt+    3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+
+        mfspr   r12,SPRN_MMUCR
+        rlwinm  r12,r12,0,0,23          /* Clear TID */
+
+        b       4f
+
+        /* Get the PGD for the current thread */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+
+        /* Load PID into MMUCR TID */
+        mfspr   r12,SPRN_MMUCR
+        mfspr   r13,SPRN_PID            /* Get PID */
+        rlwimi  r12,r13,0,24,31         /* Set TID */
+
+4:
+        mtspr   SPRN_MMUCR,r12
+
+        rlwinm  r12, r10, 13, 19, 29    /* Compute pgdir/pmd offset */
+        lwzx    r11, r12, r11           /* Get pgd/pmd entry */
+        rlwinm. r12, r11, 0, 0, 20      /* Extract pt base address */
+        beq     2f                      /* Bail if no table */
+
+        rlwimi  r12, r10, 23, 20, 28    /* Compute pte address */
+        lwz     r11, 4(r12)             /* Get pte entry */
+        andi.   r13, r11, _PAGE_PRESENT /* Is the page present? */
+        beq     2f                      /* Bail if not present */
+
+        ori     r11, r11, _PAGE_ACCESSED
+        stw     r11, 4(r12)
+
+        /* Jump to common TLB load point */
+        b       finish_tlb_load
+
+2:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       InstructionStorage
+
+        /* Debug Interrupt */
+        DEBUG_EXCEPTION
+
+/*
+ * Local functions
+ */
+        /*
+         * Data TLB exceptions will bail out to this point
+         * if they can't resolve the lightweight TLB fault.
+         */
+data_access:
+        NORMAL_EXCEPTION_PROLOG
+        mfspr   r5,SPRN_ESR             /* Grab the ESR, save it, pass arg3 */
+        stw     r5,_ESR(r11)
+        mfspr   r4,SPRN_DEAR            /* Grab the DEAR, save it, pass arg2 */
+        EXC_XFER_EE_LITE(0x0300, handle_page_fault)
+
+/*
+
+ * Both the instruction and data TLB miss get to this
+ * point to load the TLB.
+ *      r10 - EA of fault
+ *      r11 - available to use
+ *      r12 - Pointer to the 64-bit PTE
+ *      r13 - available to use
+ *      MMUCR - loaded with proper value when we get here
+ *      Upon exit, we reload everything and RFI.
+ */
+finish_tlb_load:
+        /*
+         * We set execute, because we don't have the granularity to
+         * properly set this at the page level (Linux problem).
+         * If shared is set, we cause a zero PID->TID load.
+         * Many of these bits are software only.  Bits we don't set
+         * here we (properly should) assume have the appropriate value.
+         */
+
+        /* Load the next available TLB index */
+        lis     r13, tlb_44x_index@ha
+        lwz     r13, tlb_44x_index@l(r13)
+        /* Load the TLB high watermark */
+        lis     r11, tlb_44x_hwater@ha
+        lwz     r11, tlb_44x_hwater@l(r11)
+
+        /* Increment, rollover, and store TLB index */
+        addi    r13, r13, 1
+        cmpw    0, r13, r11                     /* reserve entries */
+        ble     7f
+        li      r13, 0
+7:
+        /* Store the next available TLB index */
+        lis     r11, tlb_44x_index@ha
+        stw     r13, tlb_44x_index@l(r11)
+
+        lwz     r11, 0(r12)                     /* Get MS word of PTE */
+        lwz     r12, 4(r12)                     /* Get LS word of PTE */
+        rlwimi  r11, r12, 0, 0 , 19             /* Insert RPN */
+        tlbwe   r11, r13, PPC44x_TLB_XLAT       /* Write XLAT */
+
+        /*
+         * Create PAGEID. This is the faulting address,
+         * page size, and valid flag.
+         */
+        li      r11, PPC44x_TLB_VALID | PPC44x_TLB_4K
+        rlwimi  r10, r11, 0, 20, 31             /* Insert valid and page size */
+        tlbwe   r10, r13, PPC44x_TLB_PAGEID     /* Write PAGEID */
+
+        li      r10, PPC44x_TLB_SR@l            /* Set SR */
+        rlwimi  r10, r12, 0, 30, 30             /* Set SW = _PAGE_RW */
+        rlwimi  r10, r12, 29, 29, 29            /* SX = _PAGE_HWEXEC */
+        rlwimi  r10, r12, 29, 28, 28            /* UR = _PAGE_USER */
+        rlwimi  r11, r12, 31, 26, 26            /* (_PAGE_USER>>1)->r12 */
+        and     r11, r12, r11                   /* HWEXEC & USER */
+        rlwimi  r10, r11, 0, 26, 26             /* UX = HWEXEC & USER */
+
+        rlwimi  r12, r10, 0, 26, 31             /* Insert static perms */
+        rlwinm  r12, r12, 0, 20, 15             /* Clear U0-U3 */
+        tlbwe   r12, r13, PPC44x_TLB_ATTRIB     /* Write ATTRIB */
+
+        /* Done...restore registers and get out of here.
+        */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        rfi                                     /* Force context change */
+
+/*
+ * Global functions
+ */
+
+/*
+ * extern void giveup_altivec(struct task_struct *prev)
+ *
+ * The 44x core does not have an AltiVec unit.
+ */
+_GLOBAL(giveup_altivec)
+        blr
+
+/*
+ * extern void giveup_fpu(struct task_struct *prev)
+ *
+ * The 44x core does not have an FPU.
+ */
+#ifndef CONFIG_PPC_FPU
+_GLOBAL(giveup_fpu)
+        blr
+#endif
+
+/*
+ * extern void abort(void)
+ *
+ * At present, this routine just applies a system reset.
+ */
+_GLOBAL(abort)
+        mfspr   r13,SPRN_DBCR0
+        oris    r13,r13,DBCR0_RST_SYSTEM@h
+        mtspr   SPRN_DBCR0,r13
+
+_GLOBAL(set_context)
+
+#ifdef CONFIG_BDI_SWITCH
+        /* Context switch the PTE pointer for the Abatron BDI2000.
+         * The PGDIR is the second parameter.
+         */
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        stw     r4, 0x4(r5)
+#endif
+        mtspr   SPRN_PID,r3
+        isync                   /* Force context change */
+        blr
+
+/*
+ * We put a few things here that have to be page-aligned. This stuff
+ * goes at the beginning of the data segment, which is page-aligned.
+ */
+        .data
+        .align  12
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
+        .space  4096
+
+/*
+ * To support >32-bit physical addresses, we use an 8KB pgdir.
+ */
+        .globl  swapper_pg_dir
+swapper_pg_dir:
+        .space  8192
+
+/* Reserved 4k for the critical exception stack & 4k for the machine
+ * check stack per CPU for kernel mode exceptions */
+        .section .bss
+        .align 12
+exception_stack_bottom:
+        .space  BOOKE_EXCEPTION_STACK_SIZE
+        .globl  exception_stack_top
+exception_stack_top:
+
+/*
+ * This space gets a copy of optional info passed to us by the bootstrap
+ * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
+ */
+        .globl  cmd_line
+cmd_line:
+        .space  512
+
+/*
+ * Room for two PTE pointers, usually the kernel and current user pointers
+ * to their respective root page table.
+ */
+abatron_pteptrs:
+        .space  8
diff --git a/arch/powerpc/kernel/head_4xx.S b/arch/powerpc/kernel/head_4xx.S
new file mode 100644
index 000000000000..2590e97f5539
--- /dev/null
+++ b/arch/powerpc/kernel/head_4xx.S
@@ -0,0 +1,1022 @@
+/*
+ *    Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
+ *      Initial PowerPC version.
+ *    Copyright (c) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *      Rewritten for PReP
+ *    Copyright (c) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
+ *      Low-level exception handers, MMU support, and rewrite.
+ *    Copyright (c) 1997 Dan Malek <dmalek@jlc.net>
+ *      PowerPC 8xx modifications.
+ *    Copyright (c) 1998-1999 TiVo, Inc.
+ *      PowerPC 403GCX modifications.
+ *    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
+ *      PowerPC 403GCX/405GP modifications.
+ *    Copyright 2000 MontaVista Software Inc.
+ *      PPC405 modifications
+ *      PowerPC 403GCX/405GP modifications.
+ *      Author: MontaVista Software, Inc.
+ *              frank_rowand@mvista.com or source@mvista.com
+ *              debbie_chu@mvista.com
+ *
+ *
+ *    Module name: head_4xx.S
+ *
+ *    Description:
+ *      Kernel execution entry point code.
+ *
+ *    This program is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU General Public License
+ *    as published by the Free Software Foundation; either version
+ *    2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/ibm4xx.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+
+/* As with the other PowerPC ports, it is expected that when code
+ * execution begins here, the following registers contain valid, yet
+ * optional, information:
+ *
+ *   r3 - Board info structure pointer (DRAM, frequency, MAC address, etc.)
+ *   r4 - Starting address of the init RAM disk
+ *   r5 - Ending address of the init RAM disk
+ *   r6 - Start of kernel command line string (e.g. "mem=96m")
+ *   r7 - End of kernel command line string
+ *
+ * This is all going to change RSN when we add bi_recs.......  -- Dan
+ */
+        .text
+_GLOBAL(_stext)
+_GLOBAL(_start)
+
+        /* Save parameters we are passed.
+        */
+        mr      r31,r3
+        mr      r30,r4
+        mr      r29,r5
+        mr      r28,r6
+        mr      r27,r7
+
+        /* We have to turn on the MMU right away so we get cache modes
+         * set correctly.
+         */
+        bl      initial_mmu
+
+/* We now have the lower 16 Meg mapped into TLB entries, and the caches
+ * ready to work.
+ */
+turn_on_mmu:
+        lis     r0,MSR_KERNEL@h
+        ori     r0,r0,MSR_KERNEL@l
+        mtspr   SPRN_SRR1,r0
+        lis     r0,start_here@h
+        ori     r0,r0,start_here@l
+        mtspr   SPRN_SRR0,r0
+        SYNC
+        rfi                             /* enables MMU */
+        b       .                       /* prevent prefetch past rfi */
+
+/*
+ * This area is used for temporarily saving registers during the
+ * critical exception prolog.
+ */
+        . = 0xc0
+crit_save:
+_GLOBAL(crit_r10)
+        .space  4
+_GLOBAL(crit_r11)
+        .space  4
+
+/*
+ * Exception vector entry code. This code runs with address translation
+ * turned off (i.e. using physical addresses). We assume SPRG3 has the
+ * physical address of the current task thread_struct.
+ * Note that we have to have decremented r1 before we write to any fields
+ * of the exception frame, since a critical interrupt could occur at any
+ * time, and it will write to the area immediately below the current r1.
+ */
+#define NORMAL_EXCEPTION_PROLOG                                              \
+        mtspr   SPRN_SPRG0,r10;         /* save two registers to work with */\
+        mtspr   SPRN_SPRG1,r11;                                              \
+        mtspr   SPRN_SPRG2,r1;                                               \
+        mfcr    r10;                    /* save CR in r10 for now          */\
+        mfspr   r11,SPRN_SRR1;          /* check whether user or kernel    */\
+        andi.   r11,r11,MSR_PR;                                              \
+        beq     1f;                                                          \
+        mfspr   r1,SPRN_SPRG3;          /* if from user, start at top of   */\
+        lwz     r1,THREAD_INFO-THREAD(r1); /* this thread's kernel stack   */\
+        addi    r1,r1,THREAD_SIZE;                                           \
+1:      subi    r1,r1,INT_FRAME_SIZE;   /* Allocate an exception frame     */\
+        tophys(r11,r1);                                                      \
+        stw     r10,_CCR(r11);          /* save various registers          */\
+        stw     r12,GPR12(r11);                                              \
+        stw     r9,GPR9(r11);                                                \
+        mfspr   r10,SPRN_SPRG0;                                              \
+        stw     r10,GPR10(r11);                                              \
+        mfspr   r12,SPRN_SPRG1;                                              \
+        stw     r12,GPR11(r11);                                              \
+        mflr    r10;                                                         \
+        stw     r10,_LINK(r11);                                              \
+        mfspr   r10,SPRN_SPRG2;                                              \
+        mfspr   r12,SPRN_SRR0;                                               \
+        stw     r10,GPR1(r11);                                               \
+        mfspr   r9,SPRN_SRR1;                                                \
+        stw     r10,0(r11);                                                  \
+        rlwinm  r9,r9,0,14,12;          /* clear MSR_WE (necessary?)       */\
+        stw     r0,GPR0(r11);                                                \
+        SAVE_4GPRS(3, r11);                                                  \
+        SAVE_2GPRS(7, r11)
+
+/*
+ * Exception prolog for critical exceptions.  This is a little different
+ * from the normal exception prolog above since a critical exception
+ * can potentially occur at any point during normal exception processing.
+ * Thus we cannot use the same SPRG registers as the normal prolog above.
+ * Instead we use a couple of words of memory at low physical addresses.
+ * This is OK since we don't support SMP on these processors.
+ */
+#define CRITICAL_EXCEPTION_PROLOG                                            \
+        stw     r10,crit_r10@l(0);      /* save two registers to work with */\
+        stw     r11,crit_r11@l(0);                                           \
+        mfcr    r10;                    /* save CR in r10 for now          */\
+        mfspr   r11,SPRN_SRR3;          /* check whether user or kernel    */\
+        andi.   r11,r11,MSR_PR;                                              \
+        lis     r11,critical_stack_top@h;                                    \
+        ori     r11,r11,critical_stack_top@l;                                \
+        beq     1f;                                                          \
+        /* COMING FROM USER MODE */                                          \
+        mfspr   r11,SPRN_SPRG3;         /* if from user, start at top of   */\
+        lwz     r11,THREAD_INFO-THREAD(r11); /* this thread's kernel stack */\
+        addi    r11,r11,THREAD_SIZE;                                         \
+1:      subi    r11,r11,INT_FRAME_SIZE; /* Allocate an exception frame     */\
+        tophys(r11,r11);                                                     \
+        stw     r10,_CCR(r11);          /* save various registers          */\
+        stw     r12,GPR12(r11);                                              \
+        stw     r9,GPR9(r11);                                                \
+        mflr    r10;                                                         \
+        stw     r10,_LINK(r11);                                              \
+        mfspr   r12,SPRN_DEAR;          /* save DEAR and ESR in the frame  */\
+        stw     r12,_DEAR(r11);         /* since they may have had stuff   */\
+        mfspr   r9,SPRN_ESR;            /* in them at the point where the  */\
+        stw     r9,_ESR(r11);           /* exception was taken             */\
+        mfspr   r12,SPRN_SRR2;                                               \
+        stw     r1,GPR1(r11);                                                \
+        mfspr   r9,SPRN_SRR3;                                                \
+        stw     r1,0(r11);                                                   \
+        tovirt(r1,r11);                                                      \
+        rlwinm  r9,r9,0,14,12;          /* clear MSR_WE (necessary?)       */\
+        stw     r0,GPR0(r11);                                                \
+        SAVE_4GPRS(3, r11);                                                  \
+        SAVE_2GPRS(7, r11)
+
+        /*
+         * State at this point:
+         * r9 saved in stack frame, now saved SRR3 & ~MSR_WE
+         * r10 saved in crit_r10 and in stack frame, trashed
+         * r11 saved in crit_r11 and in stack frame,
+         *      now phys stack/exception frame pointer
+         * r12 saved in stack frame, now saved SRR2
+         * CR saved in stack frame, CR0.EQ = !SRR3.PR
+         * LR, DEAR, ESR in stack frame
+         * r1 saved in stack frame, now virt stack/excframe pointer
+         * r0, r3-r8 saved in stack frame
+         */
+
+/*
+ * Exception vectors.
+ */
+#define START_EXCEPTION(n, label)                                            \
+        . = n;                                                               \
+label:
+
+#define EXCEPTION(n, label, hdlr, xfer)                         \
+        START_EXCEPTION(n, label);                              \
+        NORMAL_EXCEPTION_PROLOG;                                \
+        addi    r3,r1,STACK_FRAME_OVERHEAD;                     \
+        xfer(n, hdlr)
+
+#define CRITICAL_EXCEPTION(n, label, hdlr)                      \
+        START_EXCEPTION(n, label);                              \
+        CRITICAL_EXCEPTION_PROLOG;                              \
+        addi    r3,r1,STACK_FRAME_OVERHEAD;                     \
+        EXC_XFER_TEMPLATE(hdlr, n+2, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \
+                          NOCOPY, crit_transfer_to_handler,     \
+                          ret_from_crit_exc)
+
+#define EXC_XFER_TEMPLATE(hdlr, trap, msr, copyee, tfer, ret)   \
+        li      r10,trap;                                       \
+        stw     r10,_TRAP(r11);                                 \
+        lis     r10,msr@h;                                      \
+        ori     r10,r10,msr@l;                                  \
+        copyee(r10, r9);                                        \
+        bl      tfer;                                           \
+        .long   hdlr;                                           \
+        .long   ret
+
+#define COPY_EE(d, s)           rlwimi d,s,0,16,16
+#define NOCOPY(d, s)
+
+#define EXC_XFER_STD(n, hdlr)           \
+        EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, NOCOPY, transfer_to_handler_full, \
+                          ret_from_except_full)
+
+#define EXC_XFER_LITE(n, hdlr)          \
+        EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, NOCOPY, transfer_to_handler, \
+                          ret_from_except)
+
+#define EXC_XFER_EE(n, hdlr)            \
+        EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, COPY_EE, transfer_to_handler_full, \
+                          ret_from_except_full)
+
+#define EXC_XFER_EE_LITE(n, hdlr)       \
+        EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, COPY_EE, transfer_to_handler, \
+                          ret_from_except)
+
+
+/*
+ * 0x0100 - Critical Interrupt Exception
+ */
+        CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, unknown_exception)
+
+/*
+ * 0x0200 - Machine Check Exception
+ */
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
+
+/*
+ * 0x0300 - Data Storage Exception
+ * This happens for just a few reasons.  U0 set (but we don't do that),
+ * or zone protection fault (user violation, write to protected page).
+ * If this is just an update of modified status, we do that quickly
+ * and exit.  Otherwise, we call heavywight functions to do the work.
+ */
+        START_EXCEPTION(0x0300, DataStorage)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+#ifdef CONFIG_403GCX
+        stw     r12, 0(r0)
+        stw     r9, 4(r0)
+        mfcr    r11
+        mfspr   r12, SPRN_PID
+        stw     r11, 8(r0)
+        stw     r12, 12(r0)
+#else
+        mtspr   SPRN_SPRG4, r12
+        mtspr   SPRN_SPRG5, r9
+        mfcr    r11
+        mfspr   r12, SPRN_PID
+        mtspr   SPRN_SPRG7, r11
+        mtspr   SPRN_SPRG6, r12
+#endif
+
+        /* First, check if it was a zone fault (which means a user
+        * tried to access a kernel or read-protected page - always
+        * a SEGV).  All other faults here must be stores, so no
+        * need to check ESR_DST as well. */
+        mfspr   r10, SPRN_ESR
+        andis.  r10, r10, ESR_DIZ@h
+        bne     2f
+
+        mfspr   r10, SPRN_DEAR          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        cmplw   r10, r11
+        blt+    3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+        li      r9, 0
+        mtspr   SPRN_PID, r9            /* TLB will have 0 TID */
+        b       4f
+
+        /* Get the PGD for the current thread.
+         */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+4:
+        tophys(r11, r11)
+        rlwimi  r11, r10, 12, 20, 29    /* Create L1 (pgdir/pmd) address */
+        lwz     r11, 0(r11)             /* Get L1 entry */
+        rlwinm. r12, r11, 0, 0, 19      /* Extract L2 (pte) base address */
+        beq     2f                      /* Bail if no table */
+
+        rlwimi  r12, r10, 22, 20, 29    /* Compute PTE address */
+        lwz     r11, 0(r12)             /* Get Linux PTE */
+
+        andi.   r9, r11, _PAGE_RW       /* Is it writeable? */
+        beq     2f                      /* Bail if not */
+
+        /* Update 'changed'.
+        */
+        ori     r11, r11, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE
+        stw     r11, 0(r12)             /* Update Linux page table */
+
+        /* Most of the Linux PTE is ready to load into the TLB LO.
+         * We set ZSEL, where only the LS-bit determines user access.
+         * We set execute, because we don't have the granularity to
+         * properly set this at the page level (Linux problem).
+         * If shared is set, we cause a zero PID->TID load.
+         * Many of these bits are software only.  Bits we don't set
+         * here we (properly should) assume have the appropriate value.
+         */
+        li      r12, 0x0ce2
+        andc    r11, r11, r12           /* Make sure 20, 21 are zero */
+
+        /* find the TLB index that caused the fault.  It has to be here.
+        */
+        tlbsx   r9, 0, r10
+
+        tlbwe   r11, r9, TLB_DATA               /* Load TLB LO */
+
+        /* Done...restore registers and get out of here.
+        */
+#ifdef CONFIG_403GCX
+        lwz     r12, 12(r0)
+        lwz     r11, 8(r0)
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        lwz     r9, 4(r0)
+        lwz     r12, 0(r0)
+#else
+        mfspr   r12, SPRN_SPRG6
+        mfspr   r11, SPRN_SPRG7
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        mfspr   r9, SPRN_SPRG5
+        mfspr   r12, SPRN_SPRG4
+#endif
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        PPC405_ERR77_SYNC
+        rfi                     /* Should sync shadow TLBs */
+        b       .               /* prevent prefetch past rfi */
+
+2:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+#ifdef CONFIG_403GCX
+        lwz     r12, 12(r0)
+        lwz     r11, 8(r0)
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        lwz     r9, 4(r0)
+        lwz     r12, 0(r0)
+#else
+        mfspr   r12, SPRN_SPRG6
+        mfspr   r11, SPRN_SPRG7
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        mfspr   r9, SPRN_SPRG5
+        mfspr   r12, SPRN_SPRG4
+#endif
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       DataAccess
+
+/*
+ * 0x0400 - Instruction Storage Exception
+ * This is caused by a fetch from non-execute or guarded pages.
+ */
+        START_EXCEPTION(0x0400, InstructionAccess)
+        NORMAL_EXCEPTION_PROLOG
+        mr      r4,r12                  /* Pass SRR0 as arg2 */
+        li      r5,0                    /* Pass zero as arg3 */
+        EXC_XFER_EE_LITE(0x400, handle_page_fault)
+
+/* 0x0500 - External Interrupt Exception */
+        EXCEPTION(0x0500, HardwareInterrupt, do_IRQ, EXC_XFER_LITE)
+
+/* 0x0600 - Alignment Exception */
+        START_EXCEPTION(0x0600, Alignment)
+        NORMAL_EXCEPTION_PROLOG
+        mfspr   r4,SPRN_DEAR            /* Grab the DEAR and save it */
+        stw     r4,_DEAR(r11)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE(0x600, alignment_exception)
+
+/* 0x0700 - Program Exception */
+        START_EXCEPTION(0x0700, ProgramCheck)
+        NORMAL_EXCEPTION_PROLOG
+        mfspr   r4,SPRN_ESR             /* Grab the ESR and save it */
+        stw     r4,_ESR(r11)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_STD(0x700, program_check_exception)
+
+        EXCEPTION(0x0800, Trap_08, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0900, Trap_09, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0A00, Trap_0A, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0B00, Trap_0B, unknown_exception, EXC_XFER_EE)
+
+/* 0x0C00 - System Call Exception */
+        START_EXCEPTION(0x0C00, SystemCall)
+        NORMAL_EXCEPTION_PROLOG
+        EXC_XFER_EE_LITE(0xc00, DoSyscall)
+
+        EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0E00, Trap_0E, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0F00, Trap_0F, unknown_exception, EXC_XFER_EE)
+
+/* 0x1000 - Programmable Interval Timer (PIT) Exception */
+        START_EXCEPTION(0x1000, Decrementer)
+        NORMAL_EXCEPTION_PROLOG
+        lis     r0,TSR_PIS@h
+        mtspr   SPRN_TSR,r0             /* Clear the PIT exception */
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_LITE(0x1000, timer_interrupt)
+
+#if 0
+/* NOTE:
+ * FIT and WDT handlers are not implemented yet.
+ */
+
+/* 0x1010 - Fixed Interval Timer (FIT) Exception
+*/
+        STND_EXCEPTION(0x1010,  FITException,           unknown_exception)
+
+/* 0x1020 - Watchdog Timer (WDT) Exception
+*/
+#ifdef CONFIG_BOOKE_WDT
+        CRITICAL_EXCEPTION(0x1020, WDTException, WatchdogException)
+#else
+        CRITICAL_EXCEPTION(0x1020, WDTException, unknown_exception)
+#endif
+#endif
+
+/* 0x1100 - Data TLB Miss Exception
+ * As the name implies, translation is not in the MMU, so search the
+ * page tables and fix it.  The only purpose of this function is to
+ * load TLB entries from the page table if they exist.
+ */
+        START_EXCEPTION(0x1100, DTLBMiss)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+#ifdef CONFIG_403GCX
+        stw     r12, 0(r0)
+        stw     r9, 4(r0)
+        mfcr    r11
+        mfspr   r12, SPRN_PID
+        stw     r11, 8(r0)
+        stw     r12, 12(r0)
+#else
+        mtspr   SPRN_SPRG4, r12
+        mtspr   SPRN_SPRG5, r9
+        mfcr    r11
+        mfspr   r12, SPRN_PID
+        mtspr   SPRN_SPRG7, r11
+        mtspr   SPRN_SPRG6, r12
+#endif
+        mfspr   r10, SPRN_DEAR          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        cmplw   r10, r11
+        blt+    3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+        li      r9, 0
+        mtspr   SPRN_PID, r9            /* TLB will have 0 TID */
+        b       4f
+
+        /* Get the PGD for the current thread.
+         */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+4:
+        tophys(r11, r11)
+        rlwimi  r11, r10, 12, 20, 29    /* Create L1 (pgdir/pmd) address */
+        lwz     r12, 0(r11)             /* Get L1 entry */
+        andi.   r9, r12, _PMD_PRESENT   /* Check if it points to a PTE page */
+        beq     2f                      /* Bail if no table */
+
+        rlwimi  r12, r10, 22, 20, 29    /* Compute PTE address */
+        lwz     r11, 0(r12)             /* Get Linux PTE */
+        andi.   r9, r11, _PAGE_PRESENT
+        beq     5f
+
+        ori     r11, r11, _PAGE_ACCESSED
+        stw     r11, 0(r12)
+
+        /* Create TLB tag.  This is the faulting address plus a static
+         * set of bits.  These are size, valid, E, U0.
+        */
+        li      r12, 0x00c0
+        rlwimi  r10, r12, 0, 20, 31
+
+        b       finish_tlb_load
+
+2:      /* Check for possible large-page pmd entry */
+        rlwinm. r9, r12, 2, 22, 24
+        beq     5f
+
+        /* Create TLB tag.  This is the faulting address, plus a static
+         * set of bits (valid, E, U0) plus the size from the PMD.
+         */
+        ori     r9, r9, 0x40
+        rlwimi  r10, r9, 0, 20, 31
+        mr      r11, r12
+
+        b       finish_tlb_load
+
+5:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+#ifdef CONFIG_403GCX
+        lwz     r12, 12(r0)
+        lwz     r11, 8(r0)
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        lwz     r9, 4(r0)
+        lwz     r12, 0(r0)
+#else
+        mfspr   r12, SPRN_SPRG6
+        mfspr   r11, SPRN_SPRG7
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        mfspr   r9, SPRN_SPRG5
+        mfspr   r12, SPRN_SPRG4
+#endif
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       DataAccess
+
+/* 0x1200 - Instruction TLB Miss Exception
+ * Nearly the same as above, except we get our information from different
+ * registers and bailout to a different point.
+ */
+        START_EXCEPTION(0x1200, ITLBMiss)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+#ifdef CONFIG_403GCX
+        stw     r12, 0(r0)
+        stw     r9, 4(r0)
+        mfcr    r11
+        mfspr   r12, SPRN_PID
+        stw     r11, 8(r0)
+        stw     r12, 12(r0)
+#else
+        mtspr   SPRN_SPRG4, r12
+        mtspr   SPRN_SPRG5, r9
+        mfcr    r11
+        mfspr   r12, SPRN_PID
+        mtspr   SPRN_SPRG7, r11
+        mtspr   SPRN_SPRG6, r12
+#endif
+        mfspr   r10, SPRN_SRR0          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        cmplw   r10, r11
+        blt+    3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+        li      r9, 0
+        mtspr   SPRN_PID, r9            /* TLB will have 0 TID */
+        b       4f
+
+        /* Get the PGD for the current thread.
+         */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+4:
+        tophys(r11, r11)
+        rlwimi  r11, r10, 12, 20, 29    /* Create L1 (pgdir/pmd) address */
+        lwz     r12, 0(r11)             /* Get L1 entry */
+        andi.   r9, r12, _PMD_PRESENT   /* Check if it points to a PTE page */
+        beq     2f                      /* Bail if no table */
+
+        rlwimi  r12, r10, 22, 20, 29    /* Compute PTE address */
+        lwz     r11, 0(r12)             /* Get Linux PTE */
+        andi.   r9, r11, _PAGE_PRESENT
+        beq     5f
+
+        ori     r11, r11, _PAGE_ACCESSED
+        stw     r11, 0(r12)
+
+        /* Create TLB tag.  This is the faulting address plus a static
+         * set of bits.  These are size, valid, E, U0.
+        */
+        li      r12, 0x00c0
+        rlwimi  r10, r12, 0, 20, 31
+
+        b       finish_tlb_load
+
+2:      /* Check for possible large-page pmd entry */
+        rlwinm. r9, r12, 2, 22, 24
+        beq     5f
+
+        /* Create TLB tag.  This is the faulting address, plus a static
+         * set of bits (valid, E, U0) plus the size from the PMD.
+         */
+        ori     r9, r9, 0x40
+        rlwimi  r10, r9, 0, 20, 31
+        mr      r11, r12
+
+        b       finish_tlb_load
+
+5:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+#ifdef CONFIG_403GCX
+        lwz     r12, 12(r0)
+        lwz     r11, 8(r0)
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        lwz     r9, 4(r0)
+        lwz     r12, 0(r0)
+#else
+        mfspr   r12, SPRN_SPRG6
+        mfspr   r11, SPRN_SPRG7
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        mfspr   r9, SPRN_SPRG5
+        mfspr   r12, SPRN_SPRG4
+#endif
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       InstructionAccess
+
+        EXCEPTION(0x1300, Trap_13, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1400, Trap_14, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
+#ifdef CONFIG_IBM405_ERR51
+        /* 405GP errata 51 */
+        START_EXCEPTION(0x1700, Trap_17)
+        b DTLBMiss
+#else
+        EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE)
+#endif
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1A00, Trap_1A, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1B00, Trap_1B, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1C00, Trap_1C, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1D00, Trap_1D, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1E00, Trap_1E, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1F00, Trap_1F, unknown_exception, EXC_XFER_EE)
+
+/* Check for a single step debug exception while in an exception
+ * handler before state has been saved.  This is to catch the case
+ * where an instruction that we are trying to single step causes
+ * an exception (eg ITLB/DTLB miss) and thus the first instruction of
+ * the exception handler generates a single step debug exception.
+ *
+ * If we get a debug trap on the first instruction of an exception handler,
+ * we reset the MSR_DE in the _exception handler's_ MSR (the debug trap is
+ * a critical exception, so we are using SPRN_CSRR1 to manipulate the MSR).
+ * The exception handler was handling a non-critical interrupt, so it will
+ * save (and later restore) the MSR via SPRN_SRR1, which will still have
+ * the MSR_DE bit set.
+ */
+        /* 0x2000 - Debug Exception */
+        START_EXCEPTION(0x2000, DebugTrap)
+        CRITICAL_EXCEPTION_PROLOG
+
+        /*
+         * If this is a single step or branch-taken exception in an
+         * exception entry sequence, it was probably meant to apply to
+         * the code where the exception occurred (since exception entry
+         * doesn't turn off DE automatically).  We simulate the effect
+         * of turning off DE on entry to an exception handler by turning
+         * off DE in the SRR3 value and clearing the debug status.
+         */
+        mfspr   r10,SPRN_DBSR           /* check single-step/branch taken */
+        andis.  r10,r10,DBSR_IC@h
+        beq+    2f
+
+        andi.   r10,r9,MSR_IR|MSR_PR    /* check supervisor + MMU off */
+        beq     1f                      /* branch and fix it up */
+
+        mfspr   r10,SPRN_SRR2           /* Faulting instruction address */
+        cmplwi  r10,0x2100
+        bgt+    2f                      /* address above exception vectors */
+
+        /* here it looks like we got an inappropriate debug exception. */
+1:      rlwinm  r9,r9,0,~MSR_DE         /* clear DE in the SRR3 value */
+        lis     r10,DBSR_IC@h           /* clear the IC event */
+        mtspr   SPRN_DBSR,r10
+        /* restore state and get out */
+        lwz     r10,_CCR(r11)
+        lwz     r0,GPR0(r11)
+        lwz     r1,GPR1(r11)
+        mtcrf   0x80,r10
+        mtspr   SPRN_SRR2,r12
+        mtspr   SPRN_SRR3,r9
+        lwz     r9,GPR9(r11)
+        lwz     r12,GPR12(r11)
+        lwz     r10,crit_r10@l(0)
+        lwz     r11,crit_r11@l(0)
+        PPC405_ERR77_SYNC
+        rfci
+        b       .
+
+        /* continue normal handling for a critical exception... */
+2:      mfspr   r4,SPRN_DBSR
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_TEMPLATE(DebugException, 0x2002, \
+                (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \
+                NOCOPY, crit_transfer_to_handler, ret_from_crit_exc)
+
+/*
+ * The other Data TLB exceptions bail out to this point
+ * if they can't resolve the lightweight TLB fault.
+ */
+DataAccess:
+        NORMAL_EXCEPTION_PROLOG
+        mfspr   r5,SPRN_ESR             /* Grab the ESR, save it, pass arg3 */
+        stw     r5,_ESR(r11)
+        mfspr   r4,SPRN_DEAR            /* Grab the DEAR, save it, pass arg2 */
+        EXC_XFER_EE_LITE(0x300, handle_page_fault)
+
+/* Other PowerPC processors, namely those derived from the 6xx-series
+ * have vectors from 0x2100 through 0x2F00 defined, but marked as reserved.
+ * However, for the 4xx-series processors these are neither defined nor
+ * reserved.
+ */
+
+        /* Damn, I came up one instruction too many to fit into the
+         * exception space :-).  Both the instruction and data TLB
+         * miss get to this point to load the TLB.
+         *      r10 - TLB_TAG value
+         *      r11 - Linux PTE
+         *      r12, r9 - avilable to use
+         *      PID - loaded with proper value when we get here
+         *      Upon exit, we reload everything and RFI.
+         * Actually, it will fit now, but oh well.....a common place
+         * to load the TLB.
+         */
+tlb_4xx_index:
+        .long   0
+finish_tlb_load:
+        /* load the next available TLB index.
+        */
+        lwz     r9, tlb_4xx_index@l(0)
+        addi    r9, r9, 1
+        andi.   r9, r9, (PPC4XX_TLB_SIZE-1)
+        stw     r9, tlb_4xx_index@l(0)
+
+6:
+        /*
+         * Clear out the software-only bits in the PTE to generate the
+         * TLB_DATA value.  These are the bottom 2 bits of the RPM, the
+         * top 3 bits of the zone field, and M.
+         */
+        li      r12, 0x0ce2
+        andc    r11, r11, r12
+
+        tlbwe   r11, r9, TLB_DATA               /* Load TLB LO */
+        tlbwe   r10, r9, TLB_TAG                /* Load TLB HI */
+
+        /* Done...restore registers and get out of here.
+        */
+#ifdef CONFIG_403GCX
+        lwz     r12, 12(r0)
+        lwz     r11, 8(r0)
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        lwz     r9, 4(r0)
+        lwz     r12, 0(r0)
+#else
+        mfspr   r12, SPRN_SPRG6
+        mfspr   r11, SPRN_SPRG7
+        mtspr   SPRN_PID, r12
+        mtcr    r11
+        mfspr   r9, SPRN_SPRG5
+        mfspr   r12, SPRN_SPRG4
+#endif
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        PPC405_ERR77_SYNC
+        rfi                     /* Should sync shadow TLBs */
+        b       .               /* prevent prefetch past rfi */
+
+/* extern void giveup_fpu(struct task_struct *prev)
+ *
+ * The PowerPC 4xx family of processors do not have an FPU, so this just
+ * returns.
+ */
+_GLOBAL(giveup_fpu)
+        blr
+
+/* This is where the main kernel code starts.
+ */
+start_here:
+
+        /* ptr to current */
+        lis     r2,init_task@h
+        ori     r2,r2,init_task@l
+
+        /* ptr to phys current thread */
+        tophys(r4,r2)
+        addi    r4,r4,THREAD    /* init task's THREAD */
+        mtspr   SPRN_SPRG3,r4
+
+        /* stack */
+        lis     r1,init_thread_union@ha
+        addi    r1,r1,init_thread_union@l
+        li      r0,0
+        stwu    r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
+
+        bl      early_init      /* We have to do this with MMU on */
+
+/*
+ * Decide what sort of machine this is and initialize the MMU.
+ */
+        mr      r3,r31
+        mr      r4,r30
+        mr      r5,r29
+        mr      r6,r28
+        mr      r7,r27
+        bl      machine_init
+        bl      MMU_init
+
+/* Go back to running unmapped so we can load up new values
+ * and change to using our exception vectors.
+ * On the 4xx, all we have to do is invalidate the TLB to clear
+ * the old 16M byte TLB mappings.
+ */
+        lis     r4,2f@h
+        ori     r4,r4,2f@l
+        tophys(r4,r4)
+        lis     r3,(MSR_KERNEL & ~(MSR_IR|MSR_DR))@h
+        ori     r3,r3,(MSR_KERNEL & ~(MSR_IR|MSR_DR))@l
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        rfi
+        b       .               /* prevent prefetch past rfi */
+
+/* Load up the kernel context */
+2:
+        sync                    /* Flush to memory before changing TLB */
+        tlbia
+        isync                   /* Flush shadow TLBs */
+
+        /* set up the PTE pointers for the Abatron bdiGDB.
+        */
+        lis     r6, swapper_pg_dir@h
+        ori     r6, r6, swapper_pg_dir@l
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        stw     r5, 0xf0(r0)    /* Must match your Abatron config file */
+        tophys(r5,r5)
+        stw     r6, 0(r5)
+
+/* Now turn on the MMU for real! */
+        lis     r4,MSR_KERNEL@h
+        ori     r4,r4,MSR_KERNEL@l
+        lis     r3,start_kernel@h
+        ori     r3,r3,start_kernel@l
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
+        rfi                     /* enable MMU and jump to start_kernel */
+        b       .               /* prevent prefetch past rfi */
+
+/* Set up the initial MMU state so we can do the first level of
+ * kernel initialization.  This maps the first 16 MBytes of memory 1:1
+ * virtual to physical and more importantly sets the cache mode.
+ */
+initial_mmu:
+        tlbia                   /* Invalidate all TLB entries */
+        isync
+
+        /* We should still be executing code at physical address 0x0000xxxx
+         * at this point. However, start_here is at virtual address
+         * 0xC000xxxx. So, set up a TLB mapping to cover this once
+         * translation is enabled.
+         */
+
+        lis     r3,KERNELBASE@h         /* Load the kernel virtual address */
+        ori     r3,r3,KERNELBASE@l
+        tophys(r4,r3)                   /* Load the kernel physical address */
+
+        iccci   r0,r3                   /* Invalidate the i-cache before use */
+
+        /* Load the kernel PID.
+        */
+        li      r0,0
+        mtspr   SPRN_PID,r0
+        sync
+
+        /* Configure and load two entries into TLB slots 62 and 63.
+         * In case we are pinning TLBs, these are reserved in by the
+         * other TLB functions.  If not reserving, then it doesn't
+         * matter where they are loaded.
+         */
+        clrrwi  r4,r4,10                /* Mask off the real page number */
+        ori     r4,r4,(TLB_WR | TLB_EX) /* Set the write and execute bits */
+
+        clrrwi  r3,r3,10                /* Mask off the effective page number */
+        ori     r3,r3,(TLB_VALID | TLB_PAGESZ(PAGESZ_16M))
+
+        li      r0,63                    /* TLB slot 63 */
+
+        tlbwe   r4,r0,TLB_DATA          /* Load the data portion of the entry */
+        tlbwe   r3,r0,TLB_TAG           /* Load the tag portion of the entry */
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(SERIAL_DEBUG_IO_BASE)
+
+        /* Load a TLB entry for the UART, so that ppc4xx_progress() can use
+         * the UARTs nice and early.  We use a 4k real==virtual mapping. */
+
+        lis     r3,SERIAL_DEBUG_IO_BASE@h
+        ori     r3,r3,SERIAL_DEBUG_IO_BASE@l
+        mr      r4,r3
+        clrrwi  r4,r4,12
+        ori     r4,r4,(TLB_WR|TLB_I|TLB_M|TLB_G)
+
+        clrrwi  r3,r3,12
+        ori     r3,r3,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K))
+
+        li      r0,0                    /* TLB slot 0 */
+        tlbwe   r4,r0,TLB_DATA
+        tlbwe   r3,r0,TLB_TAG
+#endif /* CONFIG_SERIAL_DEBUG_TEXT && SERIAL_DEBUG_IO_BASE */
+
+        isync
+
+        /* Establish the exception vector base
+        */
+        lis     r4,KERNELBASE@h         /* EVPR only uses the high 16-bits */
+        tophys(r0,r4)                   /* Use the physical address */
+        mtspr   SPRN_EVPR,r0
+
+        blr
+
+_GLOBAL(abort)
+        mfspr   r13,SPRN_DBCR0
+        oris    r13,r13,DBCR0_RST_SYSTEM@h
+        mtspr   SPRN_DBCR0,r13
+
+_GLOBAL(set_context)
+
+#ifdef CONFIG_BDI_SWITCH
+        /* Context switch the PTE pointer for the Abatron BDI2000.
+         * The PGDIR is the second parameter.
+         */
+        lis     r5, KERNELBASE@h
+        lwz     r5, 0xf0(r5)
+        stw     r4, 0x4(r5)
+#endif
+        sync
+        mtspr   SPRN_PID,r3
+        isync                           /* Need an isync to flush shadow */
+                                        /* TLBs after changing PID */
+        blr
+
+/* We put a few things here that have to be page-aligned. This stuff
+ * goes at the beginning of the data segment, which is page-aligned.
+ */
+        .data
+        .align  12
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
+        .space  4096
+        .globl  swapper_pg_dir
+swapper_pg_dir:
+        .space  4096
+
+
+/* Stack for handling critical exceptions from kernel mode */
+        .section .bss
+        .align 12
+exception_stack_bottom:
+        .space  4096
+critical_stack_top:
+        .globl  exception_stack_top
+exception_stack_top:
+
+/* This space gets a copy of optional info passed to us by the bootstrap
+ * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
+ */
+        .globl  cmd_line
+cmd_line:
+        .space  512
+
+/* Room for two PTE pointers, usually the kernel and current user pointers
+ * to their respective root page table.
+ */
+abatron_pteptrs:
+        .space  8
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
new file mode 100644
index 000000000000..147215a0d6c0
--- /dev/null
+++ b/arch/powerpc/kernel/head_64.S
@@ -0,0 +1,1957 @@
+/*
+ *  arch/ppc64/kernel/head.S
+ *
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
+ *    Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *  Adapted for Power Macintosh by Paul Mackerras.
+ *  Low-level exception handlers and MMU support
+ *  rewritten by Paul Mackerras.
+ *    Copyright (C) 1996 Paul Mackerras.
+ *
+ *  Adapted for 64bit PowerPC by Dave Engebretsen, Peter Bergner, and
+ *    Mike Corrigan {engebret|bergner|mikejc}@us.ibm.com
+ *
+ *  This file contains the low-level support and setup for the
+ *  PowerPC-64 platform, including trap and interrupt dispatch.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <asm/reg.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/systemcfg.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/bug.h>
+#include <asm/cputable.h>
+#include <asm/setup.h>
+#include <asm/hvcall.h>
+#include <asm/iSeries/LparMap.h>
+#include <asm/thread_info.h>
+
+#ifdef CONFIG_PPC_ISERIES
+#define DO_SOFT_DISABLE
+#endif
+
+/*
+ * We layout physical memory as follows:
+ * 0x0000 - 0x00ff : Secondary processor spin code
+ * 0x0100 - 0x2fff : pSeries Interrupt prologs
+ * 0x3000 - 0x5fff : interrupt support, iSeries and common interrupt prologs
+ * 0x6000 - 0x6fff : Initial (CPU0) segment table
+ * 0x7000 - 0x7fff : FWNMI data area
+ * 0x8000 -        : Early init and support code
+ */
+
+/*
+ *   SPRG Usage
+ *
+ *   Register   Definition
+ *
+ *   SPRG0      reserved for hypervisor
+ *   SPRG1      temp - used to save gpr
+ *   SPRG2      temp - used to save gpr
+ *   SPRG3      virt addr of paca
+ */
+
+/*
+ * Entering into this code we make the following assumptions:
+ *  For pSeries:
+ *   1. The MMU is off & open firmware is running in real mode.
+ *   2. The kernel is entered at __start
+ *
+ *  For iSeries:
+ *   1. The MMU is on (as it always is for iSeries)
+ *   2. The kernel is entered at system_reset_iSeries
+ */
+
+        .text
+        .globl  _stext
+_stext:
+#ifdef CONFIG_PPC_MULTIPLATFORM
+_GLOBAL(__start)
+        /* NOP this out unconditionally */
+BEGIN_FTR_SECTION
+        b       .__start_initialization_multiplatform
+END_FTR_SECTION(0, 1)
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+        /* Catch branch to 0 in real mode */
+        trap
+
+#ifdef CONFIG_PPC_ISERIES
+        /*
+         * At offset 0x20, there is a pointer to iSeries LPAR data.
+         * This is required by the hypervisor
+         */
+        . = 0x20
+        .llong hvReleaseData-KERNELBASE
+
+        /*
+         * At offset 0x28 and 0x30 are offsets to the mschunks_map
+         * array (used by the iSeries LPAR debugger to do translation
+         * between physical addresses and absolute addresses) and
+         * to the pidhash table (also used by the debugger)
+         */
+        .llong mschunks_map-KERNELBASE
+        .llong 0        /* pidhash-KERNELBASE SFRXXX */
+
+        /* Offset 0x38 - Pointer to start of embedded System.map */
+        .globl  embedded_sysmap_start
+embedded_sysmap_start:
+        .llong  0
+        /* Offset 0x40 - Pointer to end of embedded System.map */
+        .globl  embedded_sysmap_end
+embedded_sysmap_end:
+        .llong  0
+
+#endif /* CONFIG_PPC_ISERIES */
+
+        /* Secondary processors spin on this value until it goes to 1. */
+        .globl  __secondary_hold_spinloop
+__secondary_hold_spinloop:
+        .llong  0x0
+
+        /* Secondary processors write this value with their cpu # */
+        /* after they enter the spin loop immediately below.      */
+        .globl  __secondary_hold_acknowledge
+__secondary_hold_acknowledge:
+        .llong  0x0
+
+        . = 0x60
+/*
+ * The following code is used on pSeries to hold secondary processors
+ * in a spin loop after they have been freed from OpenFirmware, but
+ * before the bulk of the kernel has been relocated.  This code
+ * is relocated to physical address 0x60 before prom_init is run.
+ * All of it must fit below the first exception vector at 0x100.
+ */
+_GLOBAL(__secondary_hold)
+        mfmsr   r24
+        ori     r24,r24,MSR_RI
+        mtmsrd  r24                     /* RI on */
+
+        /* Grab our linux cpu number */
+        mr      r24,r3
+
+        /* Tell the master cpu we're here */
+        /* Relocation is off & we are located at an address less */
+        /* than 0x100, so only need to grab low order offset.    */
+        std     r24,__secondary_hold_acknowledge@l(0)
+        sync
+
+        /* All secondary cpus wait here until told to start. */
+100:    ld      r4,__secondary_hold_spinloop@l(0)
+        cmpdi   0,r4,1
+        bne     100b
+
+#ifdef CONFIG_HMT
+        b       .hmt_init
+#else
+#ifdef CONFIG_SMP
+        mr      r3,r24
+        b       .pSeries_secondary_smp_init
+#else
+        BUG_OPCODE
+#endif
+#endif
+
+/* This value is used to mark exception frames on the stack. */
+        .section ".toc","aw"
+exception_marker:
+        .tc     ID_72656773_68657265[TC],0x7265677368657265
+        .text
+
+/*
+ * The following macros define the code that appears as
+ * the prologue to each of the exception handlers.  They
+ * are split into two parts to allow a single kernel binary
+ * to be used for pSeries and iSeries.
+ * LOL.  One day... - paulus
+ */
+
+/*
+ * We make as much of the exception code common between native
+ * exception handlers (including pSeries LPAR) and iSeries LPAR
+ * implementations as possible.
+ */
+
+/*
+ * This is the start of the interrupt handlers for pSeries
+ * This code runs with relocation off.
+ */
+#define EX_R9           0
+#define EX_R10          8
+#define EX_R11          16
+#define EX_R12          24
+#define EX_R13          32
+#define EX_SRR0         40
+#define EX_R3           40      /* SLB miss saves R3, but not SRR0 */
+#define EX_DAR          48
+#define EX_LR           48      /* SLB miss saves LR, but not DAR */
+#define EX_DSISR        56
+#define EX_CCR          60
+
+#define EXCEPTION_PROLOG_PSERIES(area, label)                           \
+        mfspr   r13,SPRN_SPRG3;         /* get paca address into r13 */ \
+        std     r9,area+EX_R9(r13);     /* save r9 - r12 */             \
+        std     r10,area+EX_R10(r13);                                   \
+        std     r11,area+EX_R11(r13);                                   \
+        std     r12,area+EX_R12(r13);                                   \
+        mfspr   r9,SPRN_SPRG1;                                          \
+        std     r9,area+EX_R13(r13);                                    \
+        mfcr    r9;                                                     \
+        clrrdi  r12,r13,32;             /* get high part of &label */   \
+        mfmsr   r10;                                                    \
+        mfspr   r11,SPRN_SRR0;          /* save SRR0 */                 \
+        ori     r12,r12,(label)@l;      /* virt addr of handler */      \
+        ori     r10,r10,MSR_IR|MSR_DR|MSR_RI;                           \
+        mtspr   SPRN_SRR0,r12;                                          \
+        mfspr   r12,SPRN_SRR1;          /* and SRR1 */                  \
+        mtspr   SPRN_SRR1,r10;                                          \
+        rfid;                                                           \
+        b       .       /* prevent speculative execution */
+
+/*
+ * This is the start of the interrupt handlers for iSeries
+ * This code runs with relocation on.
+ */
+#define EXCEPTION_PROLOG_ISERIES_1(area)                                \
+        mfspr   r13,SPRN_SPRG3;         /* get paca address into r13 */ \
+        std     r9,area+EX_R9(r13);     /* save r9 - r12 */             \
+        std     r10,area+EX_R10(r13);                                   \
+        std     r11,area+EX_R11(r13);                                   \
+        std     r12,area+EX_R12(r13);                                   \
+        mfspr   r9,SPRN_SPRG1;                                          \
+        std     r9,area+EX_R13(r13);                                    \
+        mfcr    r9
+
+#define EXCEPTION_PROLOG_ISERIES_2                                      \
+        mfmsr   r10;                                                    \
+        ld      r11,PACALPPACA+LPPACASRR0(r13);                         \
+        ld      r12,PACALPPACA+LPPACASRR1(r13);                         \
+        ori     r10,r10,MSR_RI;                                         \
+        mtmsrd  r10,1
+
+/*
+ * The common exception prolog is used for all except a few exceptions
+ * such as a segment miss on a kernel address.  We have to be prepared
+ * to take another exception from the point where we first touch the
+ * kernel stack onwards.
+ *
+ * On entry r13 points to the paca, r9-r13 are saved in the paca,
+ * r9 contains the saved CR, r11 and r12 contain the saved SRR0 and
+ * SRR1, and relocation is on.
+ */
+#define EXCEPTION_PROLOG_COMMON(n, area)                                   \
+        andi.   r10,r12,MSR_PR;         /* See if coming from user      */ \
+        mr      r10,r1;                 /* Save r1                      */ \
+        subi    r1,r1,INT_FRAME_SIZE;   /* alloc frame on kernel stack  */ \
+        beq-    1f;                                                        \
+        ld      r1,PACAKSAVE(r13);      /* kernel stack to use          */ \
+1:      cmpdi   cr1,r1,0;               /* check if r1 is in userspace  */ \
+        bge-    cr1,bad_stack;          /* abort if it is               */ \
+        std     r9,_CCR(r1);            /* save CR in stackframe        */ \
+        std     r11,_NIP(r1);           /* save SRR0 in stackframe      */ \
+        std     r12,_MSR(r1);           /* save SRR1 in stackframe      */ \
+        std     r10,0(r1);              /* make stack chain pointer     */ \
+        std     r0,GPR0(r1);            /* save r0 in stackframe        */ \
+        std     r10,GPR1(r1);           /* save r1 in stackframe        */ \
+        std     r2,GPR2(r1);            /* save r2 in stackframe        */ \
+        SAVE_4GPRS(3, r1);              /* save r3 - r6 in stackframe   */ \
+        SAVE_2GPRS(7, r1);              /* save r7, r8 in stackframe    */ \
+        ld      r9,area+EX_R9(r13);     /* move r9, r10 to stackframe   */ \
+        ld      r10,area+EX_R10(r13);                                      \
+        std     r9,GPR9(r1);                                               \
+        std     r10,GPR10(r1);                                             \
+        ld      r9,area+EX_R11(r13);    /* move r11 - r13 to stackframe */ \
+        ld      r10,area+EX_R12(r13);                                      \
+        ld      r11,area+EX_R13(r13);                                      \
+        std     r9,GPR11(r1);                                              \
+        std     r10,GPR12(r1);                                             \
+        std     r11,GPR13(r1);                                             \
+        ld      r2,PACATOC(r13);        /* get kernel TOC into r2       */ \
+        mflr    r9;                     /* save LR in stackframe        */ \
+        std     r9,_LINK(r1);                                              \
+        mfctr   r10;                    /* save CTR in stackframe       */ \
+        std     r10,_CTR(r1);                                              \
+        mfspr   r11,SPRN_XER;           /* save XER in stackframe       */ \
+        std     r11,_XER(r1);                                              \
+        li      r9,(n)+1;                                                  \
+        std     r9,_TRAP(r1);           /* set trap number              */ \
+        li      r10,0;                                                     \
+        ld      r11,exception_marker@toc(r2);                              \
+        std     r10,RESULT(r1);         /* clear regs->result           */ \
+        std     r11,STACK_FRAME_OVERHEAD-16(r1); /* mark the frame      */
+
+/*
+ * Exception vectors.
+ */
+#define STD_EXCEPTION_PSERIES(n, label)                 \
+        . = n;                                          \
+        .globl label##_pSeries;                         \
+label##_pSeries:                                        \
+        HMT_MEDIUM;                                     \
+        mtspr   SPRN_SPRG1,r13;         /* save r13 */  \
+        RUNLATCH_ON(r13);                               \
+        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
+
+#define STD_EXCEPTION_ISERIES(n, label, area)           \
+        .globl label##_iSeries;                         \
+label##_iSeries:                                        \
+        HMT_MEDIUM;                                     \
+        mtspr   SPRN_SPRG1,r13;         /* save r13 */  \
+        RUNLATCH_ON(r13);                               \
+        EXCEPTION_PROLOG_ISERIES_1(area);               \
+        EXCEPTION_PROLOG_ISERIES_2;                     \
+        b       label##_common
+
+#define MASKABLE_EXCEPTION_ISERIES(n, label)                            \
+        .globl label##_iSeries;                                         \
+label##_iSeries:                                                        \
+        HMT_MEDIUM;                                                     \
+        mtspr   SPRN_SPRG1,r13;         /* save r13 */                  \
+        RUNLATCH_ON(r13);                                               \
+        EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN);                         \
+        lbz     r10,PACAPROCENABLED(r13);                               \
+        cmpwi   0,r10,0;                                                \
+        beq-    label##_iSeries_masked;                                 \
+        EXCEPTION_PROLOG_ISERIES_2;                                     \
+        b       label##_common;                                         \
+
+#ifdef DO_SOFT_DISABLE
+#define DISABLE_INTS                            \
+        lbz     r10,PACAPROCENABLED(r13);       \
+        li      r11,0;                          \
+        std     r10,SOFTE(r1);                  \
+        mfmsr   r10;                            \
+        stb     r11,PACAPROCENABLED(r13);       \
+        ori     r10,r10,MSR_EE;                 \
+        mtmsrd  r10,1
+
+#define ENABLE_INTS                             \
+        lbz     r10,PACAPROCENABLED(r13);       \
+        mfmsr   r11;                            \
+        std     r10,SOFTE(r1);                  \
+        ori     r11,r11,MSR_EE;                 \
+        mtmsrd  r11,1
+
+#else   /* hard enable/disable interrupts */
+#define DISABLE_INTS
+
+#define ENABLE_INTS                             \
+        ld      r12,_MSR(r1);                   \
+        mfmsr   r11;                            \
+        rlwimi  r11,r12,0,MSR_EE;               \
+        mtmsrd  r11,1
+
+#endif
+
+#define STD_EXCEPTION_COMMON(trap, label, hdlr)         \
+        .align  7;                                      \
+        .globl label##_common;                          \
+label##_common:                                         \
+        EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN);      \
+        DISABLE_INTS;                                   \
+        bl      .save_nvgprs;                           \
+        addi    r3,r1,STACK_FRAME_OVERHEAD;             \
+        bl      hdlr;                                   \
+        b       .ret_from_except
+
+#define STD_EXCEPTION_COMMON_LITE(trap, label, hdlr)    \
+        .align  7;                                      \
+        .globl label##_common;                          \
+label##_common:                                         \
+        EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN);      \
+        DISABLE_INTS;                                   \
+        addi    r3,r1,STACK_FRAME_OVERHEAD;             \
+        bl      hdlr;                                   \
+        b       .ret_from_except_lite
+
+/*
+ * Start of pSeries system interrupt routines
+ */
+        . = 0x100
+        .globl __start_interrupts
+__start_interrupts:
+
+        STD_EXCEPTION_PSERIES(0x100, system_reset)
+
+        . = 0x200
+_machine_check_pSeries:
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        RUNLATCH_ON(r13)
+        EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
+
+        . = 0x300
+        .globl data_access_pSeries
+data_access_pSeries:
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13
+BEGIN_FTR_SECTION
+        mtspr   SPRN_SPRG2,r12
+        mfspr   r13,SPRN_DAR
+        mfspr   r12,SPRN_DSISR
+        srdi    r13,r13,60
+        rlwimi  r13,r12,16,0x20
+        mfcr    r12
+        cmpwi   r13,0x2c
+        beq     .do_stab_bolted_pSeries
+        mtcrf   0x80,r12
+        mfspr   r12,SPRN_SPRG2
+END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
+        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common)
+
+        . = 0x380
+        .globl data_access_slb_pSeries
+data_access_slb_pSeries:
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13
+        RUNLATCH_ON(r13)
+        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
+        std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
+        std     r10,PACA_EXSLB+EX_R10(r13)
+        std     r11,PACA_EXSLB+EX_R11(r13)
+        std     r12,PACA_EXSLB+EX_R12(r13)
+        std     r3,PACA_EXSLB+EX_R3(r13)
+        mfspr   r9,SPRN_SPRG1
+        std     r9,PACA_EXSLB+EX_R13(r13)
+        mfcr    r9
+        mfspr   r12,SPRN_SRR1           /* and SRR1 */
+        mfspr   r3,SPRN_DAR
+        b       .do_slb_miss            /* Rel. branch works in real mode */
+
+        STD_EXCEPTION_PSERIES(0x400, instruction_access)
+
+        . = 0x480
+        .globl instruction_access_slb_pSeries
+instruction_access_slb_pSeries:
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13
+        RUNLATCH_ON(r13)
+        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
+        std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
+        std     r10,PACA_EXSLB+EX_R10(r13)
+        std     r11,PACA_EXSLB+EX_R11(r13)
+        std     r12,PACA_EXSLB+EX_R12(r13)
+        std     r3,PACA_EXSLB+EX_R3(r13)
+        mfspr   r9,SPRN_SPRG1
+        std     r9,PACA_EXSLB+EX_R13(r13)
+        mfcr    r9
+        mfspr   r12,SPRN_SRR1           /* and SRR1 */
+        mfspr   r3,SPRN_SRR0                    /* SRR0 is faulting address */
+        b       .do_slb_miss            /* Rel. branch works in real mode */
+
+        STD_EXCEPTION_PSERIES(0x500, hardware_interrupt)
+        STD_EXCEPTION_PSERIES(0x600, alignment)
+        STD_EXCEPTION_PSERIES(0x700, program_check)
+        STD_EXCEPTION_PSERIES(0x800, fp_unavailable)
+        STD_EXCEPTION_PSERIES(0x900, decrementer)
+        STD_EXCEPTION_PSERIES(0xa00, trap_0a)
+        STD_EXCEPTION_PSERIES(0xb00, trap_0b)
+
+        . = 0xc00
+        .globl  system_call_pSeries
+system_call_pSeries:
+        HMT_MEDIUM
+        RUNLATCH_ON(r9)
+        mr      r9,r13
+        mfmsr   r10
+        mfspr   r13,SPRN_SPRG3
+        mfspr   r11,SPRN_SRR0
+        clrrdi  r12,r13,32
+        oris    r12,r12,system_call_common@h
+        ori     r12,r12,system_call_common@l
+        mtspr   SPRN_SRR0,r12
+        ori     r10,r10,MSR_IR|MSR_DR|MSR_RI
+        mfspr   r12,SPRN_SRR1
+        mtspr   SPRN_SRR1,r10
+        rfid
+        b       .       /* prevent speculative execution */
+
+        STD_EXCEPTION_PSERIES(0xd00, single_step)
+        STD_EXCEPTION_PSERIES(0xe00, trap_0e)
+
+        /* We need to deal with the Altivec unavailable exception
+         * here which is at 0xf20, thus in the middle of the
+         * prolog code of the PerformanceMonitor one. A little
+         * trickery is thus necessary
+         */
+        . = 0xf00
+        b       performance_monitor_pSeries
+
+        STD_EXCEPTION_PSERIES(0xf20, altivec_unavailable)
+
+        STD_EXCEPTION_PSERIES(0x1300, instruction_breakpoint)
+        STD_EXCEPTION_PSERIES(0x1700, altivec_assist)
+
+        . = 0x3000
+
+/*** pSeries interrupt support ***/
+
+        /* moved from 0xf00 */
+        STD_EXCEPTION_PSERIES(., performance_monitor)
+
+        .align  7
+_GLOBAL(do_stab_bolted_pSeries)
+        mtcrf   0x80,r12
+        mfspr   r12,SPRN_SPRG2
+        EXCEPTION_PROLOG_PSERIES(PACA_EXSLB, .do_stab_bolted)
+
+/*
+ * Vectors for the FWNMI option.  Share common code.
+ */
+        .globl system_reset_fwnmi
+system_reset_fwnmi:
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        RUNLATCH_ON(r13)
+        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
+
+        .globl machine_check_fwnmi
+machine_check_fwnmi:
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        RUNLATCH_ON(r13)
+        EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
+
+#ifdef CONFIG_PPC_ISERIES
+/***  ISeries-LPAR interrupt handlers ***/
+
+        STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
+
+        .globl data_access_iSeries
+data_access_iSeries:
+        mtspr   SPRN_SPRG1,r13
+BEGIN_FTR_SECTION
+        mtspr   SPRN_SPRG2,r12
+        mfspr   r13,SPRN_DAR
+        mfspr   r12,SPRN_DSISR
+        srdi    r13,r13,60
+        rlwimi  r13,r12,16,0x20
+        mfcr    r12
+        cmpwi   r13,0x2c
+        beq     .do_stab_bolted_iSeries
+        mtcrf   0x80,r12
+        mfspr   r12,SPRN_SPRG2
+END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
+        EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
+        EXCEPTION_PROLOG_ISERIES_2
+        b       data_access_common
+
+.do_stab_bolted_iSeries:
+        mtcrf   0x80,r12
+        mfspr   r12,SPRN_SPRG2
+        EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
+        EXCEPTION_PROLOG_ISERIES_2
+        b       .do_stab_bolted
+
+        .globl  data_access_slb_iSeries
+data_access_slb_iSeries:
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
+        std     r3,PACA_EXSLB+EX_R3(r13)
+        ld      r12,PACALPPACA+LPPACASRR1(r13)
+        mfspr   r3,SPRN_DAR
+        b       .do_slb_miss
+
+        STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
+
+        .globl  instruction_access_slb_iSeries
+instruction_access_slb_iSeries:
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
+        std     r3,PACA_EXSLB+EX_R3(r13)
+        ld      r12,PACALPPACA+LPPACASRR1(r13)
+        ld      r3,PACALPPACA+LPPACASRR0(r13)
+        b       .do_slb_miss
+
+        MASKABLE_EXCEPTION_ISERIES(0x500, hardware_interrupt)
+        STD_EXCEPTION_ISERIES(0x600, alignment, PACA_EXGEN)
+        STD_EXCEPTION_ISERIES(0x700, program_check, PACA_EXGEN)
+        STD_EXCEPTION_ISERIES(0x800, fp_unavailable, PACA_EXGEN)
+        MASKABLE_EXCEPTION_ISERIES(0x900, decrementer)
+        STD_EXCEPTION_ISERIES(0xa00, trap_0a, PACA_EXGEN)
+        STD_EXCEPTION_ISERIES(0xb00, trap_0b, PACA_EXGEN)
+
+        .globl  system_call_iSeries
+system_call_iSeries:
+        mr      r9,r13
+        mfspr   r13,SPRN_SPRG3
+        EXCEPTION_PROLOG_ISERIES_2
+        b       system_call_common
+
+        STD_EXCEPTION_ISERIES( 0xd00, single_step, PACA_EXGEN)
+        STD_EXCEPTION_ISERIES( 0xe00, trap_0e, PACA_EXGEN)
+        STD_EXCEPTION_ISERIES( 0xf00, performance_monitor, PACA_EXGEN)
+
+        .globl system_reset_iSeries
+system_reset_iSeries:
+        mfspr   r13,SPRN_SPRG3          /* Get paca address */
+        mfmsr   r24
+        ori     r24,r24,MSR_RI
+        mtmsrd  r24                     /* RI on */
+        lhz     r24,PACAPACAINDEX(r13)  /* Get processor # */
+        cmpwi   0,r24,0                 /* Are we processor 0? */
+        beq     .__start_initialization_iSeries /* Start up the first processor */
+        mfspr   r4,SPRN_CTRLF
+        li      r5,CTRL_RUNLATCH        /* Turn off the run light */
+        andc    r4,r4,r5
+        mtspr   SPRN_CTRLT,r4
+
+1:
+        HMT_LOW
+#ifdef CONFIG_SMP
+        lbz     r23,PACAPROCSTART(r13)  /* Test if this processor
+                                         * should start */
+        sync
+        LOADADDR(r3,current_set)
+        sldi    r28,r24,3               /* get current_set[cpu#] */
+        ldx     r3,r3,r28
+        addi    r1,r3,THREAD_SIZE
+        subi    r1,r1,STACK_FRAME_OVERHEAD
+
+        cmpwi   0,r23,0
+        beq     iSeries_secondary_smp_loop      /* Loop until told to go */
+        bne     .__secondary_start              /* Loop until told to go */
+iSeries_secondary_smp_loop:
+        /* Let the Hypervisor know we are alive */
+        /* 8002 is a call to HvCallCfg::getLps, a harmless Hypervisor function */
+        lis     r3,0x8002
+        rldicr  r3,r3,32,15             /* r0 = (r3 << 32) & 0xffff000000000000 */
+#else /* CONFIG_SMP */
+        /* Yield the processor.  This is required for non-SMP kernels
+                which are running on multi-threaded machines. */
+        lis     r3,0x8000
+        rldicr  r3,r3,32,15             /* r3 = (r3 << 32) & 0xffff000000000000 */
+        addi    r3,r3,18                /* r3 = 0x8000000000000012 which is "yield" */
+        li      r4,0                    /* "yield timed" */
+        li      r5,-1                   /* "yield forever" */
+#endif /* CONFIG_SMP */
+        li      r0,-1                   /* r0=-1 indicates a Hypervisor call */
+        sc                              /* Invoke the hypervisor via a system call */
+        mfspr   r13,SPRN_SPRG3          /* Put r13 back ???? */
+        b       1b                      /* If SMP not configured, secondaries
+                                         * loop forever */
+
+        .globl decrementer_iSeries_masked
+decrementer_iSeries_masked:
+        li      r11,1
+        stb     r11,PACALPPACA+LPPACADECRINT(r13)
+        lwz     r12,PACADEFAULTDECR(r13)
+        mtspr   SPRN_DEC,r12
+        /* fall through */
+
+        .globl hardware_interrupt_iSeries_masked
+hardware_interrupt_iSeries_masked:
+        mtcrf   0x80,r9         /* Restore regs */
+        ld      r11,PACALPPACA+LPPACASRR0(r13)
+        ld      r12,PACALPPACA+LPPACASRR1(r13)
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
+        ld      r9,PACA_EXGEN+EX_R9(r13)
+        ld      r10,PACA_EXGEN+EX_R10(r13)
+        ld      r11,PACA_EXGEN+EX_R11(r13)
+        ld      r12,PACA_EXGEN+EX_R12(r13)
+        ld      r13,PACA_EXGEN+EX_R13(r13)
+        rfid
+        b       .       /* prevent speculative execution */
+#endif /* CONFIG_PPC_ISERIES */
+
+/*** Common interrupt handlers ***/
+
+        STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception)
+
+        /*
+         * Machine check is different because we use a different
+         * save area: PACA_EXMC instead of PACA_EXGEN.
+         */
+        .align  7
+        .globl machine_check_common
+machine_check_common:
+        EXCEPTION_PROLOG_COMMON(0x200, PACA_EXMC)
+        DISABLE_INTS
+        bl      .save_nvgprs
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .machine_check_exception
+        b       .ret_from_except
+
+        STD_EXCEPTION_COMMON_LITE(0x900, decrementer, .timer_interrupt)
+        STD_EXCEPTION_COMMON(0xa00, trap_0a, .unknown_exception)
+        STD_EXCEPTION_COMMON(0xb00, trap_0b, .unknown_exception)
+        STD_EXCEPTION_COMMON(0xd00, single_step, .single_step_exception)
+        STD_EXCEPTION_COMMON(0xe00, trap_0e, .unknown_exception)
+        STD_EXCEPTION_COMMON(0xf00, performance_monitor, .performance_monitor_exception)
+        STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, .instruction_breakpoint_exception)
+#ifdef CONFIG_ALTIVEC
+        STD_EXCEPTION_COMMON(0x1700, altivec_assist, .altivec_assist_exception)
+#else
+        STD_EXCEPTION_COMMON(0x1700, altivec_assist, .unknown_exception)
+#endif
+
+/*
+ * Here we have detected that the kernel stack pointer is bad.
+ * R9 contains the saved CR, r13 points to the paca,
+ * r10 contains the (bad) kernel stack pointer,
+ * r11 and r12 contain the saved SRR0 and SRR1.
+ * We switch to using an emergency stack, save the registers there,
+ * and call kernel_bad_stack(), which panics.
+ */
+bad_stack:
+        ld      r1,PACAEMERGSP(r13)
+        subi    r1,r1,64+INT_FRAME_SIZE
+        std     r9,_CCR(r1)
+        std     r10,GPR1(r1)
+        std     r11,_NIP(r1)
+        std     r12,_MSR(r1)
+        mfspr   r11,SPRN_DAR
+        mfspr   r12,SPRN_DSISR
+        std     r11,_DAR(r1)
+        std     r12,_DSISR(r1)
+        mflr    r10
+        mfctr   r11
+        mfxer   r12
+        std     r10,_LINK(r1)
+        std     r11,_CTR(r1)
+        std     r12,_XER(r1)
+        SAVE_GPR(0,r1)
+        SAVE_GPR(2,r1)
+        SAVE_4GPRS(3,r1)
+        SAVE_2GPRS(7,r1)
+        SAVE_10GPRS(12,r1)
+        SAVE_10GPRS(22,r1)
+        addi    r11,r1,INT_FRAME_SIZE
+        std     r11,0(r1)
+        li      r12,0
+        std     r12,0(r11)
+        ld      r2,PACATOC(r13)
+1:      addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .kernel_bad_stack
+        b       1b
+
+/*
+ * Return from an exception with minimal checks.
+ * The caller is assumed to have done EXCEPTION_PROLOG_COMMON.
+ * If interrupts have been enabled, or anything has been
+ * done that might have changed the scheduling status of
+ * any task or sent any task a signal, you should use
+ * ret_from_except or ret_from_except_lite instead of this.
+ */
+        .globl  fast_exception_return
+fast_exception_return:
+        ld      r12,_MSR(r1)
+        ld      r11,_NIP(r1)
+        andi.   r3,r12,MSR_RI           /* check if RI is set */
+        beq-    unrecov_fer
+        ld      r3,_CCR(r1)
+        ld      r4,_LINK(r1)
+        ld      r5,_CTR(r1)
+        ld      r6,_XER(r1)
+        mtcr    r3
+        mtlr    r4
+        mtctr   r5
+        mtxer   r6
+        REST_GPR(0, r1)
+        REST_8GPRS(2, r1)
+
+        mfmsr   r10
+        clrrdi  r10,r10,2               /* clear RI (LE is 0 already) */
+        mtmsrd  r10,1
+
+        mtspr   SPRN_SRR1,r12
+        mtspr   SPRN_SRR0,r11
+        REST_4GPRS(10, r1)
+        ld      r1,GPR1(r1)
+        rfid
+        b       .       /* prevent speculative execution */
+
+unrecov_fer:
+        bl      .save_nvgprs
+1:      addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .unrecoverable_exception
+        b       1b
+
+/*
+ * Here r13 points to the paca, r9 contains the saved CR,
+ * SRR0 and SRR1 are saved in r11 and r12,
+ * r9 - r13 are saved in paca->exgen.
+ */
+        .align  7
+        .globl data_access_common
+data_access_common:
+        RUNLATCH_ON(r10)                /* It wont fit in the 0x300 handler */
+        mfspr   r10,SPRN_DAR
+        std     r10,PACA_EXGEN+EX_DAR(r13)
+        mfspr   r10,SPRN_DSISR
+        stw     r10,PACA_EXGEN+EX_DSISR(r13)
+        EXCEPTION_PROLOG_COMMON(0x300, PACA_EXGEN)
+        ld      r3,PACA_EXGEN+EX_DAR(r13)
+        lwz     r4,PACA_EXGEN+EX_DSISR(r13)
+        li      r5,0x300
+        b       .do_hash_page           /* Try to handle as hpte fault */
+
+        .align  7
+        .globl instruction_access_common
+instruction_access_common:
+        EXCEPTION_PROLOG_COMMON(0x400, PACA_EXGEN)
+        ld      r3,_NIP(r1)
+        andis.  r4,r12,0x5820
+        li      r5,0x400
+        b       .do_hash_page           /* Try to handle as hpte fault */
+
+        .align  7
+        .globl hardware_interrupt_common
+        .globl hardware_interrupt_entry
+hardware_interrupt_common:
+        EXCEPTION_PROLOG_COMMON(0x500, PACA_EXGEN)
+hardware_interrupt_entry:
+        DISABLE_INTS
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .do_IRQ
+        b       .ret_from_except_lite
+
+        .align  7
+        .globl alignment_common
+alignment_common:
+        mfspr   r10,SPRN_DAR
+        std     r10,PACA_EXGEN+EX_DAR(r13)
+        mfspr   r10,SPRN_DSISR
+        stw     r10,PACA_EXGEN+EX_DSISR(r13)
+        EXCEPTION_PROLOG_COMMON(0x600, PACA_EXGEN)
+        ld      r3,PACA_EXGEN+EX_DAR(r13)
+        lwz     r4,PACA_EXGEN+EX_DSISR(r13)
+        std     r3,_DAR(r1)
+        std     r4,_DSISR(r1)
+        bl      .save_nvgprs
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        ENABLE_INTS
+        bl      .alignment_exception
+        b       .ret_from_except
+
+        .align  7
+        .globl program_check_common
+program_check_common:
+        EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
+        bl      .save_nvgprs
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        ENABLE_INTS
+        bl      .program_check_exception
+        b       .ret_from_except
+
+        .align  7
+        .globl fp_unavailable_common
+fp_unavailable_common:
+        EXCEPTION_PROLOG_COMMON(0x800, PACA_EXGEN)
+        bne     .load_up_fpu            /* if from user, just load it up */
+        bl      .save_nvgprs
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        ENABLE_INTS
+        bl      .kernel_fp_unavailable_exception
+        BUG_OPCODE
+
+        .align  7
+        .globl altivec_unavailable_common
+altivec_unavailable_common:
+        EXCEPTION_PROLOG_COMMON(0xf20, PACA_EXGEN)
+#ifdef CONFIG_ALTIVEC
+BEGIN_FTR_SECTION
+        bne     .load_up_altivec        /* if from user, just load it up */
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+#endif
+        bl      .save_nvgprs
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        ENABLE_INTS
+        bl      .altivec_unavailable_exception
+        b       .ret_from_except
+
+#ifdef CONFIG_ALTIVEC
+/*
+ * load_up_altivec(unused, unused, tsk)
+ * Disable VMX for the task which had it previously,
+ * and save its vector registers in its thread_struct.
+ * Enables the VMX for use in the kernel on return.
+ * On SMP we know the VMX is free, since we give it up every
+ * switch (ie, no lazy save of the vector registers).
+ * On entry: r13 == 'current' && last_task_used_altivec != 'current'
+ */
+_STATIC(load_up_altivec)
+        mfmsr   r5                      /* grab the current MSR */
+        oris    r5,r5,MSR_VEC@h
+        mtmsrd  r5                      /* enable use of VMX now */
+        isync
+
+/*
+ * For SMP, we don't do lazy VMX switching because it just gets too
+ * horrendously complex, especially when a task switches from one CPU
+ * to another.  Instead we call giveup_altvec in switch_to.
+ * VRSAVE isn't dealt with here, that is done in the normal context
+ * switch code. Note that we could rely on vrsave value to eventually
+ * avoid saving all of the VREGs here...
+ */
+#ifndef CONFIG_SMP
+        ld      r3,last_task_used_altivec@got(r2)
+        ld      r4,0(r3)
+        cmpdi   0,r4,0
+        beq     1f
+        /* Save VMX state to last_task_used_altivec's THREAD struct */
+        addi    r4,r4,THREAD
+        SAVE_32VRS(0,r5,r4)
+        mfvscr  vr0
+        li      r10,THREAD_VSCR
+        stvx    vr0,r10,r4
+        /* Disable VMX for last_task_used_altivec */
+        ld      r5,PT_REGS(r4)
+        ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        lis     r6,MSR_VEC@h
+        andc    r4,r4,r6
+        std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+1:
+#endif /* CONFIG_SMP */
+        /* Hack: if we get an altivec unavailable trap with VRSAVE
+         * set to all zeros, we assume this is a broken application
+         * that fails to set it properly, and thus we switch it to
+         * all 1's
+         */
+        mfspr   r4,SPRN_VRSAVE
+        cmpdi   0,r4,0
+        bne+    1f
+        li      r4,-1
+        mtspr   SPRN_VRSAVE,r4
+1:
+        /* enable use of VMX after return */
+        ld      r4,PACACURRENT(r13)
+        addi    r5,r4,THREAD            /* Get THREAD */
+        oris    r12,r12,MSR_VEC@h
+        std     r12,_MSR(r1)
+        li      r4,1
+        li      r10,THREAD_VSCR
+        stw     r4,THREAD_USED_VR(r5)
+        lvx     vr0,r10,r5
+        mtvscr  vr0
+        REST_32VRS(0,r4,r5)
+#ifndef CONFIG_SMP
+        /* Update last_task_used_math to 'current' */
+        subi    r4,r5,THREAD            /* Back to 'current' */
+        std     r4,0(r3)
+#endif /* CONFIG_SMP */
+        /* restore registers and return */
+        b       fast_exception_return
+#endif /* CONFIG_ALTIVEC */
+
+/*
+ * Hash table stuff
+ */
+        .align  7
+_GLOBAL(do_hash_page)
+        std     r3,_DAR(r1)
+        std     r4,_DSISR(r1)
+
+        andis.  r0,r4,0xa450            /* weird error? */
+        bne-    .handle_page_fault      /* if not, try to insert a HPTE */
+BEGIN_FTR_SECTION
+        andis.  r0,r4,0x0020            /* Is it a segment table fault? */
+        bne-    .do_ste_alloc           /* If so handle it */
+END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
+
+        /*
+         * We need to set the _PAGE_USER bit if MSR_PR is set or if we are
+         * accessing a userspace segment (even from the kernel). We assume
+         * kernel addresses always have the high bit set.
+         */
+        rlwinm  r4,r4,32-25+9,31-9,31-9 /* DSISR_STORE -> _PAGE_RW */
+        rotldi  r0,r3,15                /* Move high bit into MSR_PR posn */
+        orc     r0,r12,r0               /* MSR_PR | ~high_bit */
+        rlwimi  r4,r0,32-13,30,30       /* becomes _PAGE_USER access bit */
+        ori     r4,r4,1                 /* add _PAGE_PRESENT */
+        rlwimi  r4,r5,22+2,31-2,31-2    /* Set _PAGE_EXEC if trap is 0x400 */
+
+        /*
+         * On iSeries, we soft-disable interrupts here, then
+         * hard-enable interrupts so that the hash_page code can spin on
+         * the hash_table_lock without problems on a shared processor.
+         */
+        DISABLE_INTS
+
+        /*
+         * r3 contains the faulting address
+         * r4 contains the required access permissions
+         * r5 contains the trap number
+         *
+         * at return r3 = 0 for success
+         */
+        bl      .hash_page              /* build HPTE if possible */
+        cmpdi   r3,0                    /* see if hash_page succeeded */
+
+#ifdef DO_SOFT_DISABLE
+        /*
+         * If we had interrupts soft-enabled at the point where the
+         * DSI/ISI occurred, and an interrupt came in during hash_page,
+         * handle it now.
+         * We jump to ret_from_except_lite rather than fast_exception_return
+         * because ret_from_except_lite will check for and handle pending
+         * interrupts if necessary.
+         */
+        beq     .ret_from_except_lite
+        /* For a hash failure, we don't bother re-enabling interrupts */
+        ble-    12f
+
+        /*
+         * hash_page couldn't handle it, set soft interrupt enable back
+         * to what it was before the trap.  Note that .local_irq_restore
+         * handles any interrupts pending at this point.
+         */
+        ld      r3,SOFTE(r1)
+        bl      .local_irq_restore
+        b       11f
+#else
+        beq     fast_exception_return   /* Return from exception on success */
+        ble-    12f                     /* Failure return from hash_page */
+
+        /* fall through */
+#endif
+
+/* Here we have a page fault that hash_page can't handle. */
+_GLOBAL(handle_page_fault)
+        ENABLE_INTS
+11:     ld      r4,_DAR(r1)
+        ld      r5,_DSISR(r1)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .do_page_fault
+        cmpdi   r3,0
+        beq+    .ret_from_except_lite
+        bl      .save_nvgprs
+        mr      r5,r3
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        lwz     r4,_DAR(r1)
+        bl      .bad_page_fault
+        b       .ret_from_except
+
+/* We have a page fault that hash_page could handle but HV refused
+ * the PTE insertion
+ */
+12:     bl      .save_nvgprs
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        lwz     r4,_DAR(r1)
+        bl      .low_hash_fault
+        b       .ret_from_except
+
+        /* here we have a segment miss */
+_GLOBAL(do_ste_alloc)
+        bl      .ste_allocate           /* try to insert stab entry */
+        cmpdi   r3,0
+        beq+    fast_exception_return
+        b       .handle_page_fault
+
+/*
+ * r13 points to the PACA, r9 contains the saved CR,
+ * r11 and r12 contain the saved SRR0 and SRR1.
+ * r9 - r13 are saved in paca->exslb.
+ * We assume we aren't going to take any exceptions during this procedure.
+ * We assume (DAR >> 60) == 0xc.
+ */
+        .align  7
+_GLOBAL(do_stab_bolted)
+        stw     r9,PACA_EXSLB+EX_CCR(r13)       /* save CR in exc. frame */
+        std     r11,PACA_EXSLB+EX_SRR0(r13)     /* save SRR0 in exc. frame */
+
+        /* Hash to the primary group */
+        ld      r10,PACASTABVIRT(r13)
+        mfspr   r11,SPRN_DAR
+        srdi    r11,r11,28
+        rldimi  r10,r11,7,52    /* r10 = first ste of the group */
+
+        /* Calculate VSID */
+        /* This is a kernel address, so protovsid = ESID */
+        ASM_VSID_SCRAMBLE(r11, r9)
+        rldic   r9,r11,12,16    /* r9 = vsid << 12 */
+
+        /* Search the primary group for a free entry */
+1:      ld      r11,0(r10)      /* Test valid bit of the current ste    */
+        andi.   r11,r11,0x80
+        beq     2f
+        addi    r10,r10,16
+        andi.   r11,r10,0x70
+        bne     1b
+
+        /* Stick for only searching the primary group for now.          */
+        /* At least for now, we use a very simple random castout scheme */
+        /* Use the TB as a random number ;  OR in 1 to avoid entry 0    */
+        mftb    r11
+        rldic   r11,r11,4,57    /* r11 = (r11 << 4) & 0x70 */
+        ori     r11,r11,0x10
+
+        /* r10 currently points to an ste one past the group of interest */
+        /* make it point to the randomly selected entry                 */
+        subi    r10,r10,128
+        or      r10,r10,r11     /* r10 is the entry to invalidate       */
+
+        isync                   /* mark the entry invalid               */
+        ld      r11,0(r10)
+        rldicl  r11,r11,56,1    /* clear the valid bit */
+        rotldi  r11,r11,8
+        std     r11,0(r10)
+        sync
+
+        clrrdi  r11,r11,28      /* Get the esid part of the ste         */
+        slbie   r11
+
+2:      std     r9,8(r10)       /* Store the vsid part of the ste       */
+        eieio
+
+        mfspr   r11,SPRN_DAR            /* Get the new esid                     */
+        clrrdi  r11,r11,28      /* Permits a full 32b of ESID           */
+        ori     r11,r11,0x90    /* Turn on valid and kp                 */
+        std     r11,0(r10)      /* Put new entry back into the stab     */
+
+        sync
+
+        /* All done -- return from exception. */
+        lwz     r9,PACA_EXSLB+EX_CCR(r13)       /* get saved CR */
+        ld      r11,PACA_EXSLB+EX_SRR0(r13)     /* get saved SRR0 */
+
+        andi.   r10,r12,MSR_RI
+        beq-    unrecov_slb
+
+        mtcrf   0x80,r9                 /* restore CR */
+
+        mfmsr   r10
+        clrrdi  r10,r10,2
+        mtmsrd  r10,1
+
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
+        ld      r9,PACA_EXSLB+EX_R9(r13)
+        ld      r10,PACA_EXSLB+EX_R10(r13)
+        ld      r11,PACA_EXSLB+EX_R11(r13)
+        ld      r12,PACA_EXSLB+EX_R12(r13)
+        ld      r13,PACA_EXSLB+EX_R13(r13)
+        rfid
+        b       .       /* prevent speculative execution */
+
+/*
+ * r13 points to the PACA, r9 contains the saved CR,
+ * r11 and r12 contain the saved SRR0 and SRR1.
+ * r3 has the faulting address
+ * r9 - r13 are saved in paca->exslb.
+ * r3 is saved in paca->slb_r3
+ * We assume we aren't going to take any exceptions during this procedure.
+ */
+_GLOBAL(do_slb_miss)
+        mflr    r10
+
+        stw     r9,PACA_EXSLB+EX_CCR(r13)       /* save CR in exc. frame */
+        std     r10,PACA_EXSLB+EX_LR(r13)       /* save LR */
+
+        bl      .slb_allocate                   /* handle it */
+
+        /* All done -- return from exception. */
+
+        ld      r10,PACA_EXSLB+EX_LR(r13)
+        ld      r3,PACA_EXSLB+EX_R3(r13)
+        lwz     r9,PACA_EXSLB+EX_CCR(r13)       /* get saved CR */
+#ifdef CONFIG_PPC_ISERIES
+        ld      r11,PACALPPACA+LPPACASRR0(r13)  /* get SRR0 value */
+#endif /* CONFIG_PPC_ISERIES */
+
+        mtlr    r10
+
+        andi.   r10,r12,MSR_RI  /* check for unrecoverable exception */
+        beq-    unrecov_slb
+
+.machine        push
+.machine        "power4"
+        mtcrf   0x80,r9
+        mtcrf   0x01,r9         /* slb_allocate uses cr0 and cr7 */
+.machine        pop
+
+#ifdef CONFIG_PPC_ISERIES
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
+#endif /* CONFIG_PPC_ISERIES */
+        ld      r9,PACA_EXSLB+EX_R9(r13)
+        ld      r10,PACA_EXSLB+EX_R10(r13)
+        ld      r11,PACA_EXSLB+EX_R11(r13)
+        ld      r12,PACA_EXSLB+EX_R12(r13)
+        ld      r13,PACA_EXSLB+EX_R13(r13)
+        rfid
+        b       .       /* prevent speculative execution */
+
+unrecov_slb:
+        EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
+        DISABLE_INTS
+        bl      .save_nvgprs
+1:      addi    r3,r1,STACK_FRAME_OVERHEAD
+        bl      .unrecoverable_exception
+        b       1b
+
+/*
+ * Space for CPU0's segment table.
+ *
+ * On iSeries, the hypervisor must fill in at least one entry before
+ * we get control (with relocate on).  The address is give to the hv
+ * as a page number (see xLparMap in lpardata.c), so this must be at a
+ * fixed address (the linker can't compute (u64)&initial_stab >>
+ * PAGE_SHIFT).
+ */
+        . = STAB0_PHYS_ADDR     /* 0x6000 */
+        .globl initial_stab
+initial_stab:
+        .space  4096
+
+/*
+ * Data area reserved for FWNMI option.
+ * This address (0x7000) is fixed by the RPA.
+ */
+        .= 0x7000
+        .globl fwnmi_data_area
+fwnmi_data_area:
+
+        /* iSeries does not use the FWNMI stuff, so it is safe to put
+         * this here, even if we later allow kernels that will boot on
+         * both pSeries and iSeries */
+#ifdef CONFIG_PPC_ISERIES
+        . = LPARMAP_PHYS
+#include "lparmap.s"
+/*
+ * This ".text" is here for old compilers that generate a trailing
+ * .note section when compiling .c files to .s
+ */
+        .text
+#endif /* CONFIG_PPC_ISERIES */
+
+        . = 0x8000
+
+/*
+ * On pSeries, secondary processors spin in the following code.
+ * At entry, r3 = this processor's number (physical cpu id)
+ */
+_GLOBAL(pSeries_secondary_smp_init)
+        mr      r24,r3
+        
+        /* turn on 64-bit mode */
+        bl      .enable_64b_mode
+        isync
+
+        /* Copy some CPU settings from CPU 0 */
+        bl      .__restore_cpu_setup
+
+        /* Set up a paca value for this processor. Since we have the
+         * physical cpu id in r24, we need to search the pacas to find
+         * which logical id maps to our physical one.
+         */
+        LOADADDR(r13, paca)             /* Get base vaddr of paca array  */
+        li      r5,0                    /* logical cpu id                */
+1:      lhz     r6,PACAHWCPUID(r13)     /* Load HW procid from paca      */
+        cmpw    r6,r24                  /* Compare to our id             */
+        beq     2f
+        addi    r13,r13,PACA_SIZE       /* Loop to next PACA on miss     */
+        addi    r5,r5,1
+        cmpwi   r5,NR_CPUS
+        blt     1b
+
+        mr      r3,r24                  /* not found, copy phys to r3    */
+        b       .kexec_wait             /* next kernel might do better   */
+
+2:      mtspr   SPRN_SPRG3,r13          /* Save vaddr of paca in SPRG3   */
+        /* From now on, r24 is expected to be logical cpuid */
+        mr      r24,r5
+3:      HMT_LOW
+        lbz     r23,PACAPROCSTART(r13)  /* Test if this processor should */
+                                        /* start.                        */
+        sync
+
+        /* Create a temp kernel stack for use before relocation is on.  */
+        ld      r1,PACAEMERGSP(r13)
+        subi    r1,r1,STACK_FRAME_OVERHEAD
+
+        cmpwi   0,r23,0
+#ifdef CONFIG_SMP
+        bne     .__secondary_start
+#endif
+        b       3b                      /* Loop until told to go         */
+
+#ifdef CONFIG_PPC_ISERIES
+_STATIC(__start_initialization_iSeries)
+        /* Clear out the BSS */
+        LOADADDR(r11,__bss_stop)
+        LOADADDR(r8,__bss_start)
+        sub     r11,r11,r8              /* bss size                     */
+        addi    r11,r11,7               /* round up to an even double word */
+        rldicl. r11,r11,61,3            /* shift right by 3             */
+        beq     4f
+        addi    r8,r8,-8
+        li      r0,0
+        mtctr   r11                     /* zero this many doublewords   */
+3:      stdu    r0,8(r8)
+        bdnz    3b
+4:
+        LOADADDR(r1,init_thread_union)
+        addi    r1,r1,THREAD_SIZE
+        li      r0,0
+        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
+
+        LOADADDR(r3,cpu_specs)
+        LOADADDR(r4,cur_cpu_spec)
+        li      r5,0
+        bl      .identify_cpu
+
+        LOADADDR(r2,__toc_start)
+        addi    r2,r2,0x4000
+        addi    r2,r2,0x4000
+
+        bl      .iSeries_early_setup
+        bl      .early_setup
+
+        /* relocation is on at this point */
+
+        b       .start_here_common
+#endif /* CONFIG_PPC_ISERIES */
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+
+_STATIC(__mmu_off)
+        mfmsr   r3
+        andi.   r0,r3,MSR_IR|MSR_DR
+        beqlr
+        andc    r3,r3,r0
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        sync
+        rfid
+        b       .       /* prevent speculative execution */
+
+
+/*
+ * Here is our main kernel entry point. We support currently 2 kind of entries
+ * depending on the value of r5.
+ *
+ *   r5 != NULL -> OF entry, we go to prom_init, "legacy" parameter content
+ *                 in r3...r7
+ *   
+ *   r5 == NULL -> kexec style entry. r3 is a physical pointer to the
+ *                 DT block, r4 is a physical pointer to the kernel itself
+ *
+ */
+_GLOBAL(__start_initialization_multiplatform)
+        /*
+         * Are we booted from a PROM Of-type client-interface ?
+         */
+        cmpldi  cr0,r5,0
+        bne     .__boot_from_prom               /* yes -> prom */
+
+        /* Save parameters */
+        mr      r31,r3
+        mr      r30,r4
+
+        /* Make sure we are running in 64 bits mode */
+        bl      .enable_64b_mode
+
+        /* Setup some critical 970 SPRs before switching MMU off */
+        bl      .__970_cpu_preinit
+
+        /* cpu # */
+        li      r24,0
+
+        /* Switch off MMU if not already */
+        LOADADDR(r4, .__after_prom_start - KERNELBASE)
+        add     r4,r4,r30
+        bl      .__mmu_off
+        b       .__after_prom_start
+
+_STATIC(__boot_from_prom)
+        /* Save parameters */
+        mr      r31,r3
+        mr      r30,r4
+        mr      r29,r5
+        mr      r28,r6
+        mr      r27,r7
+
+        /* Make sure we are running in 64 bits mode */
+        bl      .enable_64b_mode
+
+        /* put a relocation offset into r3 */
+        bl      .reloc_offset
+
+        LOADADDR(r2,__toc_start)
+        addi    r2,r2,0x4000
+        addi    r2,r2,0x4000
+
+        /* Relocate the TOC from a virt addr to a real addr */
+        add     r2,r2,r3
+
+        /* Restore parameters */
+        mr      r3,r31
+        mr      r4,r30
+        mr      r5,r29
+        mr      r6,r28
+        mr      r7,r27
+
+        /* Do all of the interaction with OF client interface */
+        bl      .prom_init
+        /* We never return */
+        trap
+
+/*
+ * At this point, r3 contains the physical address we are running at,
+ * returned by prom_init()
+ */
+_STATIC(__after_prom_start)
+
+/*
+ * We need to run with __start at physical address 0.
+ * This will leave some code in the first 256B of
+ * real memory, which are reserved for software use.
+ * The remainder of the first page is loaded with the fixed
+ * interrupt vectors.  The next two pages are filled with
+ * unknown exception placeholders.
+ *
+ * Note: This process overwrites the OF exception vectors.
+ *      r26 == relocation offset
+ *      r27 == KERNELBASE
+ */
+        bl      .reloc_offset
+        mr      r26,r3
+        SET_REG_TO_CONST(r27,KERNELBASE)
+
+        li      r3,0                    /* target addr */
+
+        // XXX FIXME: Use phys returned by OF (r30)
+        add     r4,r27,r26              /* source addr                   */
+                                        /* current address of _start     */
+                                        /*   i.e. where we are running   */
+                                        /*      the source addr          */
+
+        LOADADDR(r5,copy_to_here)       /* # bytes of memory to copy     */
+        sub     r5,r5,r27
+
+        li      r6,0x100                /* Start offset, the first 0x100 */
+                                        /* bytes were copied earlier.    */
+
+        bl      .copy_and_flush         /* copy the first n bytes        */
+                                        /* this includes the code being  */
+                                        /* executed here.                */
+
+        LOADADDR(r0, 4f)                /* Jump to the copy of this code */
+        mtctr   r0                      /* that we just made/relocated   */
+        bctr
+
+4:      LOADADDR(r5,klimit)
+        add     r5,r5,r26
+        ld      r5,0(r5)                /* get the value of klimit */
+        sub     r5,r5,r27
+        bl      .copy_and_flush         /* copy the rest */
+        b       .start_here_multiplatform
+
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+/*
+ * Copy routine used to copy the kernel to start at physical address 0
+ * and flush and invalidate the caches as needed.
+ * r3 = dest addr, r4 = source addr, r5 = copy limit, r6 = start offset
+ * on exit, r3, r4, r5 are unchanged, r6 is updated to be >= r5.
+ *
+ * Note: this routine *only* clobbers r0, r6 and lr
+ */
+_GLOBAL(copy_and_flush)
+        addi    r5,r5,-8
+        addi    r6,r6,-8
+4:      li      r0,16                   /* Use the least common         */
+                                        /* denominator cache line       */
+                                        /* size.  This results in       */
+                                        /* extra cache line flushes     */
+                                        /* but operation is correct.    */
+                                        /* Can't get cache line size    */
+                                        /* from NACA as it is being     */
+                                        /* moved too.                   */
+
+        mtctr   r0                      /* put # words/line in ctr      */
+3:      addi    r6,r6,8                 /* copy a cache line            */
+        ldx     r0,r6,r4
+        stdx    r0,r6,r3
+        bdnz    3b
+        dcbst   r6,r3                   /* write it to memory           */
+        sync
+        icbi    r6,r3                   /* flush the icache line        */
+        cmpld   0,r6,r5
+        blt     4b
+        sync
+        addi    r5,r5,8
+        addi    r6,r6,8
+        blr
+
+.align 8
+copy_to_here:
+
+#ifdef CONFIG_SMP
+#ifdef CONFIG_PPC_PMAC
+/*
+ * On PowerMac, secondary processors starts from the reset vector, which
+ * is temporarily turned into a call to one of the functions below.
+ */
+        .section ".text";
+        .align 2 ;
+
+        .globl  __secondary_start_pmac_0
+__secondary_start_pmac_0:
+        /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
+        li      r24,0
+        b       1f
+        li      r24,1
+        b       1f
+        li      r24,2
+        b       1f
+        li      r24,3
+1:
+        
+_GLOBAL(pmac_secondary_start)
+        /* turn on 64-bit mode */
+        bl      .enable_64b_mode
+        isync
+
+        /* Copy some CPU settings from CPU 0 */
+        bl      .__restore_cpu_setup
+
+        /* pSeries do that early though I don't think we really need it */
+        mfmsr   r3
+        ori     r3,r3,MSR_RI
+        mtmsrd  r3                      /* RI on */
+
+        /* Set up a paca value for this processor. */
+        LOADADDR(r4, paca)               /* Get base vaddr of paca array        */
+        mulli   r13,r24,PACA_SIZE        /* Calculate vaddr of right paca */
+        add     r13,r13,r4              /* for this processor.          */
+        mtspr   SPRN_SPRG3,r13           /* Save vaddr of paca in SPRG3 */
+
+        /* Create a temp kernel stack for use before relocation is on.  */
+        ld      r1,PACAEMERGSP(r13)
+        subi    r1,r1,STACK_FRAME_OVERHEAD
+
+        b       .__secondary_start
+
+#endif /* CONFIG_PPC_PMAC */
+
+/*
+ * This function is called after the master CPU has released the
+ * secondary processors.  The execution environment is relocation off.
+ * The paca for this processor has the following fields initialized at
+ * this point:
+ *   1. Processor number
+ *   2. Segment table pointer (virtual address)
+ * On entry the following are set:
+ *   r1 = stack pointer.  vaddr for iSeries, raddr (temp stack) for pSeries
+ *   r24   = cpu# (in Linux terms)
+ *   r13   = paca virtual address
+ *   SPRG3 = paca virtual address
+ */
+_GLOBAL(__secondary_start)
+
+        HMT_MEDIUM                      /* Set thread priority to MEDIUM */
+
+        ld      r2,PACATOC(r13)
+        li      r6,0
+        stb     r6,PACAPROCENABLED(r13)
+
+#ifndef CONFIG_PPC_ISERIES
+        /* Initialize the page table pointer register. */
+        LOADADDR(r6,_SDR1)
+        ld      r6,0(r6)                /* get the value of _SDR1        */
+        mtspr   SPRN_SDR1,r6                    /* set the htab location         */
+#endif
+        /* Initialize the first segment table (or SLB) entry             */
+        ld      r3,PACASTABVIRT(r13)    /* get addr of segment table     */
+        bl      .stab_initialize
+
+        /* Initialize the kernel stack.  Just a repeat for iSeries.      */
+        LOADADDR(r3,current_set)
+        sldi    r28,r24,3               /* get current_set[cpu#]         */
+        ldx     r1,r3,r28
+        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
+        std     r1,PACAKSAVE(r13)
+
+        ld      r3,PACASTABREAL(r13)    /* get raddr of segment table    */
+        ori     r4,r3,1                 /* turn on valid bit             */
+
+#ifdef CONFIG_PPC_ISERIES
+        li      r0,-1                   /* hypervisor call */
+        li      r3,1
+        sldi    r3,r3,63                /* 0x8000000000000000 */
+        ori     r3,r3,4                 /* 0x8000000000000004 */
+        sc                              /* HvCall_setASR */
+#else
+        /* set the ASR */
+        ld      r3,systemcfg@got(r2)    /* r3 = ptr to systemcfg         */
+        ld      r3,0(r3)
+        lwz     r3,PLATFORM(r3)         /* r3 = platform flags           */
+        andi.   r3,r3,PLATFORM_LPAR     /* Test if bit 0 is set (LPAR bit) */
+        beq     98f                     /* branch if result is 0  */
+        mfspr   r3,SPRN_PVR
+        srwi    r3,r3,16
+        cmpwi   r3,0x37                 /* SStar  */
+        beq     97f
+        cmpwi   r3,0x36                 /* IStar  */
+        beq     97f
+        cmpwi   r3,0x34                 /* Pulsar */
+        bne     98f
+97:     li      r3,H_SET_ASR            /* hcall = H_SET_ASR */
+        HVSC                            /* Invoking hcall */
+        b       99f
+98:                                     /* !(rpa hypervisor) || !(star)  */
+        mtasr   r4                      /* set the stab location         */
+99:
+#endif
+        li      r7,0
+        mtlr    r7
+
+        /* enable MMU and jump to start_secondary */
+        LOADADDR(r3,.start_secondary_prolog)
+        SET_REG_TO_CONST(r4, MSR_KERNEL)
+#ifdef DO_SOFT_DISABLE
+        ori     r4,r4,MSR_EE
+#endif
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
+        rfid
+        b       .       /* prevent speculative execution */
+
+/* 
+ * Running with relocation on at this point.  All we want to do is
+ * zero the stack back-chain pointer before going into C code.
+ */
+_GLOBAL(start_secondary_prolog)
+        li      r3,0
+        std     r3,0(r1)                /* Zero the stack frame pointer */
+        bl      .start_secondary
+#endif
+
+/*
+ * This subroutine clobbers r11 and r12
+ */
+_GLOBAL(enable_64b_mode)
+        mfmsr   r11                     /* grab the current MSR */
+        li      r12,1
+        rldicr  r12,r12,MSR_SF_LG,(63-MSR_SF_LG)
+        or      r11,r11,r12
+        li      r12,1
+        rldicr  r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG)
+        or      r11,r11,r12
+        mtmsrd  r11
+        isync
+        blr
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+/*
+ * This is where the main kernel code starts.
+ */
+_STATIC(start_here_multiplatform)
+        /* get a new offset, now that the kernel has moved. */
+        bl      .reloc_offset
+        mr      r26,r3
+
+        /* Clear out the BSS. It may have been done in prom_init,
+         * already but that's irrelevant since prom_init will soon
+         * be detached from the kernel completely. Besides, we need
+         * to clear it now for kexec-style entry.
+         */
+        LOADADDR(r11,__bss_stop)
+        LOADADDR(r8,__bss_start)
+        sub     r11,r11,r8              /* bss size                     */
+        addi    r11,r11,7               /* round up to an even double word */
+        rldicl. r11,r11,61,3            /* shift right by 3             */
+        beq     4f
+        addi    r8,r8,-8
+        li      r0,0
+        mtctr   r11                     /* zero this many doublewords   */
+3:      stdu    r0,8(r8)
+        bdnz    3b
+4:
+
+        mfmsr   r6
+        ori     r6,r6,MSR_RI
+        mtmsrd  r6                      /* RI on */
+
+#ifdef CONFIG_HMT
+        /* Start up the second thread on cpu 0 */
+        mfspr   r3,SPRN_PVR
+        srwi    r3,r3,16
+        cmpwi   r3,0x34                 /* Pulsar  */
+        beq     90f
+        cmpwi   r3,0x36                 /* Icestar */
+        beq     90f
+        cmpwi   r3,0x37                 /* SStar   */
+        beq     90f
+        b       91f                     /* HMT not supported */
+90:     li      r3,0
+        bl      .hmt_start_secondary
+91:
+#endif
+
+        /* The following gets the stack and TOC set up with the regs */
+        /* pointing to the real addr of the kernel stack.  This is   */
+        /* all done to support the C function call below which sets  */
+        /* up the htab.  This is done because we have relocated the  */
+        /* kernel but are still running in real mode. */
+
+        LOADADDR(r3,init_thread_union)
+        add     r3,r3,r26
+
+        /* set up a stack pointer (physical address) */
+        addi    r1,r3,THREAD_SIZE
+        li      r0,0
+        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
+
+        /* set up the TOC (physical address) */
+        LOADADDR(r2,__toc_start)
+        addi    r2,r2,0x4000
+        addi    r2,r2,0x4000
+        add     r2,r2,r26
+
+        LOADADDR(r3,cpu_specs)
+        add     r3,r3,r26
+        LOADADDR(r4,cur_cpu_spec)
+        add     r4,r4,r26
+        mr      r5,r26
+        bl      .identify_cpu
+
+        /* Save some low level config HIDs of CPU0 to be copied to
+         * other CPUs later on, or used for suspend/resume
+         */
+        bl      .__save_cpu_setup
+        sync
+
+        /* Setup a valid physical PACA pointer in SPRG3 for early_setup
+         * note that boot_cpuid can always be 0 nowadays since there is
+         * nowhere it can be initialized differently before we reach this
+         * code
+         */
+        LOADADDR(r27, boot_cpuid)
+        add     r27,r27,r26
+        lwz     r27,0(r27)
+
+        LOADADDR(r24, paca)             /* Get base vaddr of paca array  */
+        mulli   r13,r27,PACA_SIZE       /* Calculate vaddr of right paca */
+        add     r13,r13,r24             /* for this processor.           */
+        add     r13,r13,r26             /* convert to physical addr      */
+        mtspr   SPRN_SPRG3,r13          /* PPPBBB: Temp... -Peter */
+        
+        /* Do very early kernel initializations, including initial hash table,
+         * stab and slb setup before we turn on relocation.     */
+
+        /* Restore parameters passed from prom_init/kexec */
+        mr      r3,r31
+        bl      .early_setup
+
+        /* set the ASR */
+        ld      r3,PACASTABREAL(r13)
+        ori     r4,r3,1                 /* turn on valid bit             */
+        ld      r3,systemcfg@got(r2)    /* r3 = ptr to systemcfg */
+        ld      r3,0(r3)
+        lwz     r3,PLATFORM(r3)         /* r3 = platform flags */
+        andi.   r3,r3,PLATFORM_LPAR     /* Test if bit 0 is set (LPAR bit) */
+        beq     98f                     /* branch if result is 0  */
+        mfspr   r3,SPRN_PVR
+        srwi    r3,r3,16
+        cmpwi   r3,0x37                 /* SStar */
+        beq     97f
+        cmpwi   r3,0x36                 /* IStar  */
+        beq     97f
+        cmpwi   r3,0x34                 /* Pulsar */
+        bne     98f
+97:     li      r3,H_SET_ASR            /* hcall = H_SET_ASR */
+        HVSC                            /* Invoking hcall */
+        b       99f
+98:                                     /* !(rpa hypervisor) || !(star) */
+        mtasr   r4                      /* set the stab location        */
+99:
+        /* Set SDR1 (hash table pointer) */
+        ld      r3,systemcfg@got(r2)    /* r3 = ptr to systemcfg */
+        ld      r3,0(r3)
+        lwz     r3,PLATFORM(r3)         /* r3 = platform flags */
+        /* Test if bit 0 is set (LPAR bit) */
+        andi.   r3,r3,PLATFORM_LPAR
+        bne     98f                     /* branch if result is !0  */
+        LOADADDR(r6,_SDR1)              /* Only if NOT LPAR */
+        add     r6,r6,r26
+        ld      r6,0(r6)                /* get the value of _SDR1 */
+        mtspr   SPRN_SDR1,r6                    /* set the htab location  */
+98: 
+        LOADADDR(r3,.start_here_common)
+        SET_REG_TO_CONST(r4, MSR_KERNEL)
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
+        rfid
+        b       .       /* prevent speculative execution */
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+        
+        /* This is where all platforms converge execution */
+_STATIC(start_here_common)
+        /* relocation is on at this point */
+
+        /* The following code sets up the SP and TOC now that we are */
+        /* running with translation enabled. */
+
+        LOADADDR(r3,init_thread_union)
+
+        /* set up the stack */
+        addi    r1,r3,THREAD_SIZE
+        li      r0,0
+        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
+
+        /* Apply the CPUs-specific fixups (nop out sections not relevant
+         * to this CPU
+         */
+        li      r3,0
+        bl      .do_cpu_ftr_fixups
+
+        LOADADDR(r26, boot_cpuid)
+        lwz     r26,0(r26)
+
+        LOADADDR(r24, paca)             /* Get base vaddr of paca array  */
+        mulli   r13,r26,PACA_SIZE       /* Calculate vaddr of right paca */
+        add     r13,r13,r24             /* for this processor.           */
+        mtspr   SPRN_SPRG3,r13
+
+        /* ptr to current */
+        LOADADDR(r4,init_task)
+        std     r4,PACACURRENT(r13)
+
+        /* Load the TOC */
+        ld      r2,PACATOC(r13)
+        std     r1,PACAKSAVE(r13)
+
+        bl      .setup_system
+
+        /* Load up the kernel context */
+5:
+#ifdef DO_SOFT_DISABLE
+        li      r5,0
+        stb     r5,PACAPROCENABLED(r13) /* Soft Disabled */
+        mfmsr   r5
+        ori     r5,r5,MSR_EE            /* Hard Enabled */
+        mtmsrd  r5
+#endif
+
+        bl .start_kernel
+
+_GLOBAL(hmt_init)
+#ifdef CONFIG_HMT
+        LOADADDR(r5, hmt_thread_data)
+        mfspr   r7,SPRN_PVR
+        srwi    r7,r7,16
+        cmpwi   r7,0x34                 /* Pulsar  */
+        beq     90f
+        cmpwi   r7,0x36                 /* Icestar */
+        beq     91f
+        cmpwi   r7,0x37                 /* SStar   */
+        beq     91f
+        b       101f
+90:     mfspr   r6,SPRN_PIR
+        andi.   r6,r6,0x1f
+        b       92f
+91:     mfspr   r6,SPRN_PIR
+        andi.   r6,r6,0x3ff
+92:     sldi    r4,r24,3
+        stwx    r6,r5,r4
+        bl      .hmt_start_secondary
+        b       101f
+
+__hmt_secondary_hold:
+        LOADADDR(r5, hmt_thread_data)
+        clrldi  r5,r5,4
+        li      r7,0
+        mfspr   r6,SPRN_PIR
+        mfspr   r8,SPRN_PVR
+        srwi    r8,r8,16
+        cmpwi   r8,0x34
+        bne     93f
+        andi.   r6,r6,0x1f
+        b       103f
+93:     andi.   r6,r6,0x3f
+
+103:    lwzx    r8,r5,r7
+        cmpw    r8,r6
+        beq     104f
+        addi    r7,r7,8
+        b       103b
+
+104:    addi    r7,r7,4
+        lwzx    r9,r5,r7
+        mr      r24,r9
+101:
+#endif
+        mr      r3,r24
+        b       .pSeries_secondary_smp_init
+
+#ifdef CONFIG_HMT
+_GLOBAL(hmt_start_secondary)
+        LOADADDR(r4,__hmt_secondary_hold)
+        clrldi  r4,r4,4
+        mtspr   SPRN_NIADORM, r4
+        mfspr   r4, SPRN_MSRDORM
+        li      r5, -65
+        and     r4, r4, r5
+        mtspr   SPRN_MSRDORM, r4
+        lis     r4,0xffef
+        ori     r4,r4,0x7403
+        mtspr   SPRN_TSC, r4
+        li      r4,0x1f4
+        mtspr   SPRN_TST, r4
+        mfspr   r4, SPRN_HID0
+        ori     r4, r4, 0x1
+        mtspr   SPRN_HID0, r4
+        mfspr   r4, SPRN_CTRLF
+        oris    r4, r4, 0x40
+        mtspr   SPRN_CTRLT, r4
+        blr
+#endif
+
+#if defined(CONFIG_KEXEC) || defined(CONFIG_SMP)
+_GLOBAL(smp_release_cpus)
+        /* All secondary cpus are spinning on a common
+         * spinloop, release them all now so they can start
+         * to spin on their individual paca spinloops.
+         * For non SMP kernels, the secondary cpus never
+         * get out of the common spinloop.
+         * XXX This does nothing useful on iSeries, secondaries are
+         * already waiting on their paca.
+         */
+        li      r3,1
+        LOADADDR(r5,__secondary_hold_spinloop)
+        std     r3,0(r5)
+        sync
+        blr
+#endif /* CONFIG_SMP */
+
+
+/*
+ * We put a few things here that have to be page-aligned.
+ * This stuff goes at the beginning of the bss, which is page-aligned.
+ */
+        .section ".bss"
+
+        .align  PAGE_SHIFT
+
+        .globl  empty_zero_page
+empty_zero_page:
+        .space  PAGE_SIZE
+
+        .globl  swapper_pg_dir
+swapper_pg_dir:
+        .space  PAGE_SIZE
+
+/*
+ * This space gets a copy of optional info passed to us by the bootstrap
+ * Used to pass parameters into the kernel like root=/dev/sda1, etc.
+ */
+        .globl  cmd_line
+cmd_line:
+        .space  COMMAND_LINE_SIZE
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
new file mode 100644
index 000000000000..bc6d1ac55235
--- /dev/null
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -0,0 +1,860 @@
+/*
+ *  arch/ppc/kernel/except_8xx.S
+ *
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
+ *    Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *  Low-level exception handlers and MMU support
+ *  rewritten by Paul Mackerras.
+ *    Copyright (C) 1996 Paul Mackerras.
+ *  MPC8xx modifications by Dan Malek
+ *    Copyright (C) 1997 Dan Malek (dmalek@jlc.net).
+ *
+ *  This file contains low-level support and setup for PowerPC 8xx
+ *  embedded processors, including trap and interrupt dispatch.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/pgtable.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+
+/* Macro to make the code more readable. */
+#ifdef CONFIG_8xx_CPU6
+#define DO_8xx_CPU6(val, reg)   \
+        li      reg, val;       \
+        stw     reg, 12(r0);    \
+        lwz     reg, 12(r0);
+#else
+#define DO_8xx_CPU6(val, reg)
+#endif
+        .text
+        .globl  _stext
+_stext:
+        .text
+        .globl  _start
+_start:
+
+/* MPC8xx
+ * This port was done on an MBX board with an 860.  Right now I only
+ * support an ELF compressed (zImage) boot from EPPC-Bug because the
+ * code there loads up some registers before calling us:
+ *   r3: ptr to board info data
+ *   r4: initrd_start or if no initrd then 0
+ *   r5: initrd_end - unused if r4 is 0
+ *   r6: Start of command line string
+ *   r7: End of command line string
+ *
+ * I decided to use conditional compilation instead of checking PVR and
+ * adding more processor specific branches around code I don't need.
+ * Since this is an embedded processor, I also appreciate any memory
+ * savings I can get.
+ *
+ * The MPC8xx does not have any BATs, but it supports large page sizes.
+ * We first initialize the MMU to support 8M byte pages, then load one
+ * entry into each of the instruction and data TLBs to map the first
+ * 8M 1:1.  I also mapped an additional I/O space 1:1 so we can get to
+ * the "internal" processor registers before MMU_init is called.
+ *
+ * The TLB code currently contains a major hack.  Since I use the condition
+ * code register, I have to save and restore it.  I am out of registers, so
+ * I just store it in memory location 0 (the TLB handlers are not reentrant).
+ * To avoid making any decisions, I need to use the "segment" valid bit
+ * in the first level table, but that would require many changes to the
+ * Linux page directory/table functions that I don't want to do right now.
+ *
+ * I used to use SPRG2 for a temporary register in the TLB handler, but it
+ * has since been put to other uses.  I now use a hack to save a register
+ * and the CCR at memory location 0.....Someday I'll fix this.....
+ *      -- Dan
+ */
+        .globl  __start
+__start:
+        mr      r31,r3                  /* save parameters */
+        mr      r30,r4
+        mr      r29,r5
+        mr      r28,r6
+        mr      r27,r7
+
+        /* We have to turn on the MMU right away so we get cache modes
+         * set correctly.
+         */
+        bl      initial_mmu
+
+/* We now have the lower 8 Meg mapped into TLB entries, and the caches
+ * ready to work.
+ */
+
+turn_on_mmu:
+        mfmsr   r0
+        ori     r0,r0,MSR_DR|MSR_IR
+        mtspr   SPRN_SRR1,r0
+        lis     r0,start_here@h
+        ori     r0,r0,start_here@l
+        mtspr   SPRN_SRR0,r0
+        SYNC
+        rfi                             /* enables MMU */
+
+/*
+ * Exception entry code.  This code runs with address translation
+ * turned off, i.e. using physical addresses.
+ * We assume sprg3 has the physical address of the current
+ * task's thread_struct.
+ */
+#define EXCEPTION_PROLOG        \
+        mtspr   SPRN_SPRG0,r10; \
+        mtspr   SPRN_SPRG1,r11; \
+        mfcr    r10;            \
+        EXCEPTION_PROLOG_1;     \
+        EXCEPTION_PROLOG_2
+
+#define EXCEPTION_PROLOG_1      \
+        mfspr   r11,SPRN_SRR1;          /* check whether user or kernel */ \
+        andi.   r11,r11,MSR_PR; \
+        tophys(r11,r1);                 /* use tophys(r1) if kernel */ \
+        beq     1f;             \
+        mfspr   r11,SPRN_SPRG3; \
+        lwz     r11,THREAD_INFO-THREAD(r11);    \
+        addi    r11,r11,THREAD_SIZE;    \
+        tophys(r11,r11);        \
+1:      subi    r11,r11,INT_FRAME_SIZE  /* alloc exc. frame */
+
+
+#define EXCEPTION_PROLOG_2      \
+        CLR_TOP32(r11);         \
+        stw     r10,_CCR(r11);          /* save registers */ \
+        stw     r12,GPR12(r11); \
+        stw     r9,GPR9(r11);   \
+        mfspr   r10,SPRN_SPRG0; \
+        stw     r10,GPR10(r11); \
+        mfspr   r12,SPRN_SPRG1; \
+        stw     r12,GPR11(r11); \
+        mflr    r10;            \
+        stw     r10,_LINK(r11); \
+        mfspr   r12,SPRN_SRR0;  \
+        mfspr   r9,SPRN_SRR1;   \
+        stw     r1,GPR1(r11);   \
+        stw     r1,0(r11);      \
+        tovirt(r1,r11);                 /* set new kernel sp */ \
+        li      r10,MSR_KERNEL & ~(MSR_IR|MSR_DR); /* can take exceptions */ \
+        MTMSRD(r10);                    /* (except for mach check in rtas) */ \
+        stw     r0,GPR0(r11);   \
+        SAVE_4GPRS(3, r11);     \
+        SAVE_2GPRS(7, r11)
+
+/*
+ * Note: code which follows this uses cr0.eq (set if from kernel),
+ * r11, r12 (SRR0), and r9 (SRR1).
+ *
+ * Note2: once we have set r1 we are in a position to take exceptions
+ * again, and we could thus set MSR:RI at that point.
+ */
+
+/*
+ * Exception vectors.
+ */
+#define EXCEPTION(n, label, hdlr, xfer)         \
+        . = n;                                  \
+label:                                          \
+        EXCEPTION_PROLOG;                       \
+        addi    r3,r1,STACK_FRAME_OVERHEAD;     \
+        xfer(n, hdlr)
+
+#define EXC_XFER_TEMPLATE(n, hdlr, trap, copyee, tfer, ret)     \
+        li      r10,trap;                                       \
+        stw     r10,_TRAP(r11);                                 \
+        li      r10,MSR_KERNEL;                                 \
+        copyee(r10, r9);                                        \
+        bl      tfer;                                           \
+i##n:                                                           \
+        .long   hdlr;                                           \
+        .long   ret
+
+#define COPY_EE(d, s)           rlwimi d,s,0,16,16
+#define NOCOPY(d, s)
+
+#define EXC_XFER_STD(n, hdlr)           \
+        EXC_XFER_TEMPLATE(n, hdlr, n, NOCOPY, transfer_to_handler_full, \
+                          ret_from_except_full)
+
+#define EXC_XFER_LITE(n, hdlr)          \
+        EXC_XFER_TEMPLATE(n, hdlr, n+1, NOCOPY, transfer_to_handler, \
+                          ret_from_except)
+
+#define EXC_XFER_EE(n, hdlr)            \
+        EXC_XFER_TEMPLATE(n, hdlr, n, COPY_EE, transfer_to_handler_full, \
+                          ret_from_except_full)
+
+#define EXC_XFER_EE_LITE(n, hdlr)       \
+        EXC_XFER_TEMPLATE(n, hdlr, n+1, COPY_EE, transfer_to_handler, \
+                          ret_from_except)
+
+/* System reset */
+        EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
+
+/* Machine check */
+        . = 0x200
+MachineCheck:
+        EXCEPTION_PROLOG
+        mfspr r4,SPRN_DAR
+        stw r4,_DAR(r11)
+        mfspr r5,SPRN_DSISR
+        stw r5,_DSISR(r11)
+        addi r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_STD(0x200, machine_check_exception)
+
+/* Data access exception.
+ * This is "never generated" by the MPC8xx.  We jump to it for other
+ * translation errors.
+ */
+        . = 0x300
+DataAccess:
+        EXCEPTION_PROLOG
+        mfspr   r10,SPRN_DSISR
+        stw     r10,_DSISR(r11)
+        mr      r5,r10
+        mfspr   r4,SPRN_DAR
+        EXC_XFER_EE_LITE(0x300, handle_page_fault)
+
+/* Instruction access exception.
+ * This is "never generated" by the MPC8xx.  We jump to it for other
+ * translation errors.
+ */
+        . = 0x400
+InstructionAccess:
+        EXCEPTION_PROLOG
+        mr      r4,r12
+        mr      r5,r9
+        EXC_XFER_EE_LITE(0x400, handle_page_fault)
+
+/* External interrupt */
+        EXCEPTION(0x500, HardwareInterrupt, do_IRQ, EXC_XFER_LITE)
+
+/* Alignment exception */
+        . = 0x600
+Alignment:
+        EXCEPTION_PROLOG
+        mfspr   r4,SPRN_DAR
+        stw     r4,_DAR(r11)
+        mfspr   r5,SPRN_DSISR
+        stw     r5,_DSISR(r11)
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE(0x600, alignment_exception)
+
+/* Program check exception */
+        EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD)
+
+/* No FPU on MPC8xx.  This exception is not supposed to happen.
+*/
+        EXCEPTION(0x800, FPUnavailable, unknown_exception, EXC_XFER_STD)
+
+/* Decrementer */
+        EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE)
+
+        EXCEPTION(0xa00, Trap_0a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xb00, Trap_0b, unknown_exception, EXC_XFER_EE)
+
+/* System call */
+        . = 0xc00
+SystemCall:
+        EXCEPTION_PROLOG
+        EXC_XFER_EE_LITE(0xc00, DoSyscall)
+
+/* Single step - not used on 601 */
+        EXCEPTION(0xd00, SingleStep, single_step_exception, EXC_XFER_STD)
+        EXCEPTION(0xe00, Trap_0e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xf00, Trap_0f, unknown_exception, EXC_XFER_EE)
+
+/* On the MPC8xx, this is a software emulation interrupt.  It occurs
+ * for all unimplemented and illegal instructions.
+ */
+        EXCEPTION(0x1000, SoftEmu, SoftwareEmulation, EXC_XFER_STD)
+
+        . = 0x1100
+/*
+ * For the MPC8xx, this is a software tablewalk to load the instruction
+ * TLB.  It is modelled after the example in the Motorola manual.  The task
+ * switch loads the M_TWB register with the pointer to the first level table.
+ * If we discover there is no second level table (value is zero) or if there
+ * is an invalid pte, we load that into the TLB, which causes another fault
+ * into the TLB Error interrupt where we can handle such problems.
+ * We have to use the MD_xxx registers for the tablewalk because the
+ * equivalent MI_xxx registers only perform the attribute functions.
+ */
+InstructionTLBMiss:
+#ifdef CONFIG_8xx_CPU6
+        stw     r3, 8(r0)
+#endif
+        DO_8xx_CPU6(0x3f80, r3)
+        mtspr   SPRN_M_TW, r10  /* Save a couple of working registers */
+        mfcr    r10
+        stw     r10, 0(r0)
+        stw     r11, 4(r0)
+        mfspr   r10, SPRN_SRR0  /* Get effective address of fault */
+        DO_8xx_CPU6(0x3780, r3)
+        mtspr   SPRN_MD_EPN, r10        /* Have to use MD_EPN for walk, MI_EPN can't */
+        mfspr   r10, SPRN_M_TWB /* Get level 1 table entry address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        andi.   r11, r10, 0x0800        /* Address >= 0x80000000 */
+        beq     3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+        rlwimi  r10, r11, 0, 2, 19
+3:
+        lwz     r11, 0(r10)     /* Get the level 1 entry */
+        rlwinm. r10, r11,0,0,19 /* Extract page descriptor page address */
+        beq     2f              /* If zero, don't try to find a pte */
+
+        /* We have a pte table, so load the MI_TWC with the attributes
+         * for this "segment."
+         */
+        ori     r11,r11,1               /* Set valid bit */
+        DO_8xx_CPU6(0x2b80, r3)
+        mtspr   SPRN_MI_TWC, r11        /* Set segment attributes */
+        DO_8xx_CPU6(0x3b80, r3)
+        mtspr   SPRN_MD_TWC, r11        /* Load pte table base address */
+        mfspr   r11, SPRN_MD_TWC        /* ....and get the pte address */
+        lwz     r10, 0(r11)     /* Get the pte */
+
+        ori     r10, r10, _PAGE_ACCESSED
+        stw     r10, 0(r11)
+
+        /* The Linux PTE won't go exactly into the MMU TLB.
+         * Software indicator bits 21, 22 and 28 must be clear.
+         * Software indicator bits 24, 25, 26, and 27 must be
+         * set.  All other Linux PTE bits control the behavior
+         * of the MMU.
+         */
+2:      li      r11, 0x00f0
+        rlwimi  r10, r11, 0, 24, 28     /* Set 24-27, clear 28 */
+        DO_8xx_CPU6(0x2d80, r3)
+        mtspr   SPRN_MI_RPN, r10        /* Update TLB entry */
+
+        mfspr   r10, SPRN_M_TW  /* Restore registers */
+        lwz     r11, 0(r0)
+        mtcr    r11
+        lwz     r11, 4(r0)
+#ifdef CONFIG_8xx_CPU6
+        lwz     r3, 8(r0)
+#endif
+        rfi
+
+        . = 0x1200
+DataStoreTLBMiss:
+#ifdef CONFIG_8xx_CPU6
+        stw     r3, 8(r0)
+#endif
+        DO_8xx_CPU6(0x3f80, r3)
+        mtspr   SPRN_M_TW, r10  /* Save a couple of working registers */
+        mfcr    r10
+        stw     r10, 0(r0)
+        stw     r11, 4(r0)
+        mfspr   r10, SPRN_M_TWB /* Get level 1 table entry address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        andi.   r11, r10, 0x0800
+        beq     3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+        rlwimi  r10, r11, 0, 2, 19
+3:
+        lwz     r11, 0(r10)     /* Get the level 1 entry */
+        rlwinm. r10, r11,0,0,19 /* Extract page descriptor page address */
+        beq     2f              /* If zero, don't try to find a pte */
+
+        /* We have a pte table, so load fetch the pte from the table.
+         */
+        ori     r11, r11, 1     /* Set valid bit in physical L2 page */
+        DO_8xx_CPU6(0x3b80, r3)
+        mtspr   SPRN_MD_TWC, r11        /* Load pte table base address */
+        mfspr   r10, SPRN_MD_TWC        /* ....and get the pte address */
+        lwz     r10, 0(r10)     /* Get the pte */
+
+        /* Insert the Guarded flag into the TWC from the Linux PTE.
+         * It is bit 27 of both the Linux PTE and the TWC (at least
+         * I got that right :-).  It will be better when we can put
+         * this into the Linux pgd/pmd and load it in the operation
+         * above.
+         */
+        rlwimi  r11, r10, 0, 27, 27
+        DO_8xx_CPU6(0x3b80, r3)
+        mtspr   SPRN_MD_TWC, r11
+
+        mfspr   r11, SPRN_MD_TWC        /* get the pte address again */
+        ori     r10, r10, _PAGE_ACCESSED
+        stw     r10, 0(r11)
+
+        /* The Linux PTE won't go exactly into the MMU TLB.
+         * Software indicator bits 21, 22 and 28 must be clear.
+         * Software indicator bits 24, 25, 26, and 27 must be
+         * set.  All other Linux PTE bits control the behavior
+         * of the MMU.
+         */
+2:      li      r11, 0x00f0
+        rlwimi  r10, r11, 0, 24, 28     /* Set 24-27, clear 28 */
+        DO_8xx_CPU6(0x3d80, r3)
+        mtspr   SPRN_MD_RPN, r10        /* Update TLB entry */
+
+        mfspr   r10, SPRN_M_TW  /* Restore registers */
+        lwz     r11, 0(r0)
+        mtcr    r11
+        lwz     r11, 4(r0)
+#ifdef CONFIG_8xx_CPU6
+        lwz     r3, 8(r0)
+#endif
+        rfi
+
+/* This is an instruction TLB error on the MPC8xx.  This could be due
+ * to many reasons, such as executing guarded memory or illegal instruction
+ * addresses.  There is nothing to do but handle a big time error fault.
+ */
+        . = 0x1300
+InstructionTLBError:
+        b       InstructionAccess
+
+/* This is the data TLB error on the MPC8xx.  This could be due to
+ * many reasons, including a dirty update to a pte.  We can catch that
+ * one here, but anything else is an error.  First, we track down the
+ * Linux pte.  If it is valid, write access is allowed, but the
+ * page dirty bit is not set, we will set it and reload the TLB.  For
+ * any other case, we bail out to a higher level function that can
+ * handle it.
+ */
+        . = 0x1400
+DataTLBError:
+#ifdef CONFIG_8xx_CPU6
+        stw     r3, 8(r0)
+#endif
+        DO_8xx_CPU6(0x3f80, r3)
+        mtspr   SPRN_M_TW, r10  /* Save a couple of working registers */
+        mfcr    r10
+        stw     r10, 0(r0)
+        stw     r11, 4(r0)
+
+        /* First, make sure this was a store operation.
+        */
+        mfspr   r10, SPRN_DSISR
+        andis.  r11, r10, 0x0200        /* If set, indicates store op */
+        beq     2f
+
+        /* The EA of a data TLB miss is automatically stored in the MD_EPN
+         * register.  The EA of a data TLB error is automatically stored in
+         * the DAR, but not the MD_EPN register.  We must copy the 20 most
+         * significant bits of the EA from the DAR to MD_EPN before we
+         * start walking the page tables.  We also need to copy the CASID
+         * value from the M_CASID register.
+         * Addendum:  The EA of a data TLB error is _supposed_ to be stored
+         * in DAR, but it seems that this doesn't happen in some cases, such
+         * as when the error is due to a dcbi instruction to a page with a
+         * TLB that doesn't have the changed bit set.  In such cases, there
+         * does not appear to be any way  to recover the EA of the error
+         * since it is neither in DAR nor MD_EPN.  As a workaround, the
+         * _PAGE_HWWRITE bit is set for all kernel data pages when the PTEs
+         * are initialized in mapin_ram().  This will avoid the problem,
+         * assuming we only use the dcbi instruction on kernel addresses.
+         */
+        mfspr   r10, SPRN_DAR
+        rlwinm  r11, r10, 0, 0, 19
+        ori     r11, r11, MD_EVALID
+        mfspr   r10, SPRN_M_CASID
+        rlwimi  r11, r10, 0, 28, 31
+        DO_8xx_CPU6(0x3780, r3)
+        mtspr   SPRN_MD_EPN, r11
+
+        mfspr   r10, SPRN_M_TWB /* Get level 1 table entry address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        andi.   r11, r10, 0x0800
+        beq     3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+        rlwimi  r10, r11, 0, 2, 19
+3:
+        lwz     r11, 0(r10)     /* Get the level 1 entry */
+        rlwinm. r10, r11,0,0,19 /* Extract page descriptor page address */
+        beq     2f              /* If zero, bail */
+
+        /* We have a pte table, so fetch the pte from the table.
+         */
+        ori     r11, r11, 1             /* Set valid bit in physical L2 page */
+        DO_8xx_CPU6(0x3b80, r3)
+        mtspr   SPRN_MD_TWC, r11                /* Load pte table base address */
+        mfspr   r11, SPRN_MD_TWC                /* ....and get the pte address */
+        lwz     r10, 0(r11)             /* Get the pte */
+
+        andi.   r11, r10, _PAGE_RW      /* Is it writeable? */
+        beq     2f                      /* Bail out if not */
+
+        /* Update 'changed', among others.
+        */
+        ori     r10, r10, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE
+        mfspr   r11, SPRN_MD_TWC                /* Get pte address again */
+        stw     r10, 0(r11)             /* and update pte in table */
+
+        /* The Linux PTE won't go exactly into the MMU TLB.
+         * Software indicator bits 21, 22 and 28 must be clear.
+         * Software indicator bits 24, 25, 26, and 27 must be
+         * set.  All other Linux PTE bits control the behavior
+         * of the MMU.
+         */
+        li      r11, 0x00f0
+        rlwimi  r10, r11, 0, 24, 28     /* Set 24-27, clear 28 */
+        DO_8xx_CPU6(0x3d80, r3)
+        mtspr   SPRN_MD_RPN, r10        /* Update TLB entry */
+
+        mfspr   r10, SPRN_M_TW  /* Restore registers */
+        lwz     r11, 0(r0)
+        mtcr    r11
+        lwz     r11, 4(r0)
+#ifdef CONFIG_8xx_CPU6
+        lwz     r3, 8(r0)
+#endif
+        rfi
+2:
+        mfspr   r10, SPRN_M_TW  /* Restore registers */
+        lwz     r11, 0(r0)
+        mtcr    r11
+        lwz     r11, 4(r0)
+#ifdef CONFIG_8xx_CPU6
+        lwz     r3, 8(r0)
+#endif
+        b       DataAccess
+
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1a00, Trap_1a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1b00, Trap_1b, unknown_exception, EXC_XFER_EE)
+
+/* On the MPC8xx, these next four traps are used for development
+ * support of breakpoints and such.  Someday I will get around to
+ * using them.
+ */
+        EXCEPTION(0x1c00, Trap_1c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_EE)
+
+        . = 0x2000
+
+        .globl  giveup_fpu
+giveup_fpu:
+        blr
+
+/*
+ * This is where the main kernel code starts.
+ */
+start_here:
+        /* ptr to current */
+        lis     r2,init_task@h
+        ori     r2,r2,init_task@l
+
+        /* ptr to phys current thread */
+        tophys(r4,r2)
+        addi    r4,r4,THREAD    /* init task's THREAD */
+        mtspr   SPRN_SPRG3,r4
+        li      r3,0
+        mtspr   SPRN_SPRG2,r3   /* 0 => r1 has kernel sp */
+
+        /* stack */
+        lis     r1,init_thread_union@ha
+        addi    r1,r1,init_thread_union@l
+        li      r0,0
+        stwu    r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
+
+        bl      early_init      /* We have to do this with MMU on */
+
+/*
+ * Decide what sort of machine this is and initialize the MMU.
+ */
+        mr      r3,r31
+        mr      r4,r30
+        mr      r5,r29
+        mr      r6,r28
+        mr      r7,r27
+        bl      machine_init
+        bl      MMU_init
+
+/*
+ * Go back to running unmapped so we can load up new values
+ * and change to using our exception vectors.
+ * On the 8xx, all we have to do is invalidate the TLB to clear
+ * the old 8M byte TLB mappings and load the page table base register.
+ */
+        /* The right way to do this would be to track it down through
+         * init's THREAD like the context switch code does, but this is
+         * easier......until someone changes init's static structures.
+         */
+        lis     r6, swapper_pg_dir@h
+        ori     r6, r6, swapper_pg_dir@l
+        tophys(r6,r6)
+#ifdef CONFIG_8xx_CPU6
+        lis     r4, cpu6_errata_word@h
+        ori     r4, r4, cpu6_errata_word@l
+        li      r3, 0x3980
+        stw     r3, 12(r4)
+        lwz     r3, 12(r4)
+#endif
+        mtspr   SPRN_M_TWB, r6
+        lis     r4,2f@h
+        ori     r4,r4,2f@l
+        tophys(r4,r4)
+        li      r3,MSR_KERNEL & ~(MSR_IR|MSR_DR)
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        rfi
+/* Load up the kernel context */
+2:
+        SYNC                    /* Force all PTE updates to finish */
+        tlbia                   /* Clear all TLB entries */
+        sync                    /* wait for tlbia/tlbie to finish */
+        TLBSYNC                 /* ... on all CPUs */
+
+        /* set up the PTE pointers for the Abatron bdiGDB.
+        */
+        tovirt(r6,r6)
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        stw     r5, 0xf0(r0)    /* Must match your Abatron config file */
+        tophys(r5,r5)
+        stw     r6, 0(r5)
+
+/* Now turn on the MMU for real! */
+        li      r4,MSR_KERNEL
+        lis     r3,start_kernel@h
+        ori     r3,r3,start_kernel@l
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
+        rfi                     /* enable MMU and jump to start_kernel */
+
+/* Set up the initial MMU state so we can do the first level of
+ * kernel initialization.  This maps the first 8 MBytes of memory 1:1
+ * virtual to physical.  Also, set the cache mode since that is defined
+ * by TLB entries and perform any additional mapping (like of the IMMR).
+ * If configured to pin some TLBs, we pin the first 8 Mbytes of kernel,
+ * 24 Mbytes of data, and the 8M IMMR space.  Anything not covered by
+ * these mappings is mapped by page tables.
+ */
+initial_mmu:
+        tlbia                   /* Invalidate all TLB entries */
+#ifdef CONFIG_PIN_TLB
+        lis     r8, MI_RSV4I@h
+        ori     r8, r8, 0x1c00
+#else
+        li      r8, 0
+#endif
+        mtspr   SPRN_MI_CTR, r8 /* Set instruction MMU control */
+
+#ifdef CONFIG_PIN_TLB
+        lis     r10, (MD_RSV4I | MD_RESETVAL)@h
+        ori     r10, r10, 0x1c00
+        mr      r8, r10
+#else
+        lis     r10, MD_RESETVAL@h
+#endif
+#ifndef CONFIG_8xx_COPYBACK
+        oris    r10, r10, MD_WTDEF@h
+#endif
+        mtspr   SPRN_MD_CTR, r10        /* Set data TLB control */
+
+        /* Now map the lower 8 Meg into the TLBs.  For this quick hack,
+         * we can load the instruction and data TLB registers with the
+         * same values.
+         */
+        lis     r8, KERNELBASE@h        /* Create vaddr for TLB */
+        ori     r8, r8, MI_EVALID       /* Mark it valid */
+        mtspr   SPRN_MI_EPN, r8
+        mtspr   SPRN_MD_EPN, r8
+        li      r8, MI_PS8MEG           /* Set 8M byte page */
+        ori     r8, r8, MI_SVALID       /* Make it valid */
+        mtspr   SPRN_MI_TWC, r8
+        mtspr   SPRN_MD_TWC, r8
+        li      r8, MI_BOOTINIT         /* Create RPN for address 0 */
+        mtspr   SPRN_MI_RPN, r8         /* Store TLB entry */
+        mtspr   SPRN_MD_RPN, r8
+        lis     r8, MI_Kp@h             /* Set the protection mode */
+        mtspr   SPRN_MI_AP, r8
+        mtspr   SPRN_MD_AP, r8
+
+        /* Map another 8 MByte at the IMMR to get the processor
+         * internal registers (among other things).
+         */
+#ifdef CONFIG_PIN_TLB
+        addi    r10, r10, 0x0100
+        mtspr   SPRN_MD_CTR, r10
+#endif
+        mfspr   r9, 638                 /* Get current IMMR */
+        andis.  r9, r9, 0xff80          /* Get 8Mbyte boundary */
+
+        mr      r8, r9                  /* Create vaddr for TLB */
+        ori     r8, r8, MD_EVALID       /* Mark it valid */
+        mtspr   SPRN_MD_EPN, r8
+        li      r8, MD_PS8MEG           /* Set 8M byte page */
+        ori     r8, r8, MD_SVALID       /* Make it valid */
+        mtspr   SPRN_MD_TWC, r8
+        mr      r8, r9                  /* Create paddr for TLB */
+        ori     r8, r8, MI_BOOTINIT|0x2 /* Inhibit cache -- Cort */
+        mtspr   SPRN_MD_RPN, r8
+
+#ifdef CONFIG_PIN_TLB
+        /* Map two more 8M kernel data pages.
+        */
+        addi    r10, r10, 0x0100
+        mtspr   SPRN_MD_CTR, r10
+
+        lis     r8, KERNELBASE@h        /* Create vaddr for TLB */
+        addis   r8, r8, 0x0080          /* Add 8M */
+        ori     r8, r8, MI_EVALID       /* Mark it valid */
+        mtspr   SPRN_MD_EPN, r8
+        li      r9, MI_PS8MEG           /* Set 8M byte page */
+        ori     r9, r9, MI_SVALID       /* Make it valid */
+        mtspr   SPRN_MD_TWC, r9
+        li      r11, MI_BOOTINIT        /* Create RPN for address 0 */
+        addis   r11, r11, 0x0080        /* Add 8M */
+        mtspr   SPRN_MD_RPN, r8
+
+        addis   r8, r8, 0x0080          /* Add 8M */
+        mtspr   SPRN_MD_EPN, r8
+        mtspr   SPRN_MD_TWC, r9
+        addis   r11, r11, 0x0080        /* Add 8M */
+        mtspr   SPRN_MD_RPN, r8
+#endif
+
+        /* Since the cache is enabled according to the information we
+         * just loaded into the TLB, invalidate and enable the caches here.
+         * We should probably check/set other modes....later.
+         */
+        lis     r8, IDC_INVALL@h
+        mtspr   SPRN_IC_CST, r8
+        mtspr   SPRN_DC_CST, r8
+        lis     r8, IDC_ENABLE@h
+        mtspr   SPRN_IC_CST, r8
+#ifdef CONFIG_8xx_COPYBACK
+        mtspr   SPRN_DC_CST, r8
+#else
+        /* For a debug option, I left this here to easily enable
+         * the write through cache mode
+         */
+        lis     r8, DC_SFWT@h
+        mtspr   SPRN_DC_CST, r8
+        lis     r8, IDC_ENABLE@h
+        mtspr   SPRN_DC_CST, r8
+#endif
+        blr
+
+
+/*
+ * Set up to use a given MMU context.
+ * r3 is context number, r4 is PGD pointer.
+ *
+ * We place the physical address of the new task page directory loaded
+ * into the MMU base register, and set the ASID compare register with
+ * the new "context."
+ */
+_GLOBAL(set_context)
+
+#ifdef CONFIG_BDI_SWITCH
+        /* Context switch the PTE pointer for the Abatron BDI2000.
+         * The PGDIR is passed as second argument.
+         */
+        lis     r5, KERNELBASE@h
+        lwz     r5, 0xf0(r5)
+        stw     r4, 0x4(r5)
+#endif
+
+#ifdef CONFIG_8xx_CPU6
+        lis     r6, cpu6_errata_word@h
+        ori     r6, r6, cpu6_errata_word@l
+        tophys  (r4, r4)
+        li      r7, 0x3980
+        stw     r7, 12(r6)
+        lwz     r7, 12(r6)
+        mtspr   SPRN_M_TWB, r4               /* Update MMU base address */
+        li      r7, 0x3380
+        stw     r7, 12(r6)
+        lwz     r7, 12(r6)
+        mtspr   SPRN_M_CASID, r3             /* Update context */
+#else
+        mtspr   SPRN_M_CASID,r3         /* Update context */
+        tophys  (r4, r4)
+        mtspr   SPRN_M_TWB, r4          /* and pgd */
+#endif
+        SYNC
+        blr
+
+#ifdef CONFIG_8xx_CPU6
+/* It's here because it is unique to the 8xx.
+ * It is important we get called with interrupts disabled.  I used to
+ * do that, but it appears that all code that calls this already had
+ * interrupt disabled.
+ */
+        .globl  set_dec_cpu6
+set_dec_cpu6:
+        lis     r7, cpu6_errata_word@h
+        ori     r7, r7, cpu6_errata_word@l
+        li      r4, 0x2c00
+        stw     r4, 8(r7)
+        lwz     r4, 8(r7)
+        mtspr   22, r3          /* Update Decrementer */
+        SYNC
+        blr
+#endif
+
+/*
+ * We put a few things here that have to be page-aligned.
+ * This stuff goes at the beginning of the data segment,
+ * which is page-aligned.
+ */
+        .data
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
+        .space  4096
+
+        .globl  swapper_pg_dir
+swapper_pg_dir:
+        .space  4096
+
+/*
+ * This space gets a copy of optional info passed to us by the bootstrap
+ * Used to pass parameters into the kernel like root=/dev/sda1, etc.
+ */
+        .globl  cmd_line
+cmd_line:
+        .space  512
+
+/* Room for two PTE table poiners, usually the kernel and current user
+ * pointer to their respective root page table (pgdir).
+ */
+abatron_pteptrs:
+        .space  8
+
+#ifdef CONFIG_8xx_CPU6
+        .globl  cpu6_errata_word
+cpu6_errata_word:
+        .space  16
+#endif
+
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
new file mode 100644
index 000000000000..5063c603fad4
--- /dev/null
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -0,0 +1,1063 @@
+/*
+ * arch/ppc/kernel/head_fsl_booke.S
+ *
+ * Kernel execution entry point code.
+ *
+ *    Copyright (c) 1995-1996 Gary Thomas <gdt@linuxppc.org>
+ *      Initial PowerPC version.
+ *    Copyright (c) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *      Rewritten for PReP
+ *    Copyright (c) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
+ *      Low-level exception handers, MMU support, and rewrite.
+ *    Copyright (c) 1997 Dan Malek <dmalek@jlc.net>
+ *      PowerPC 8xx modifications.
+ *    Copyright (c) 1998-1999 TiVo, Inc.
+ *      PowerPC 403GCX modifications.
+ *    Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
+ *      PowerPC 403GCX/405GP modifications.
+ *    Copyright 2000 MontaVista Software Inc.
+ *      PPC405 modifications
+ *      PowerPC 403GCX/405GP modifications.
+ *      Author: MontaVista Software, Inc.
+ *              frank_rowand@mvista.com or source@mvista.com
+ *              debbie_chu@mvista.com
+ *    Copyright 2002-2004 MontaVista Software, Inc.
+ *      PowerPC 44x support, Matt Porter <mporter@kernel.crashing.org>
+ *    Copyright 2004 Freescale Semiconductor, Inc
+ *      PowerPC e500 modifications, Kumar Gala <kumar.gala@freescale.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+#include "head_booke.h"
+
+/* As with the other PowerPC ports, it is expected that when code
+ * execution begins here, the following registers contain valid, yet
+ * optional, information:
+ *
+ *   r3 - Board info structure pointer (DRAM, frequency, MAC address, etc.)
+ *   r4 - Starting address of the init RAM disk
+ *   r5 - Ending address of the init RAM disk
+ *   r6 - Start of kernel command line string (e.g. "mem=128")
+ *   r7 - End of kernel command line string
+ *
+ */
+        .text
+_GLOBAL(_stext)
+_GLOBAL(_start)
+        /*
+         * Reserve a word at a fixed location to store the address
+         * of abatron_pteptrs
+         */
+        nop
+/*
+ * Save parameters we are passed
+ */
+        mr      r31,r3
+        mr      r30,r4
+        mr      r29,r5
+        mr      r28,r6
+        mr      r27,r7
+        li      r24,0           /* CPU number */
+
+/* We try to not make any assumptions about how the boot loader
+ * setup or used the TLBs.  We invalidate all mappings from the
+ * boot loader and load a single entry in TLB1[0] to map the
+ * first 16M of kernel memory.  Any boot info passed from the
+ * bootloader needs to live in this first 16M.
+ *
+ * Requirement on bootloader:
+ *  - The page we're executing in needs to reside in TLB1 and
+ *    have IPROT=1.  If not an invalidate broadcast could
+ *    evict the entry we're currently executing in.
+ *
+ *  r3 = Index of TLB1 were executing in
+ *  r4 = Current MSR[IS]
+ *  r5 = Index of TLB1 temp mapping
+ *
+ * Later in mapin_ram we will correctly map lowmem, and resize TLB1[0]
+ * if needed
+ */
+
+/* 1. Find the index of the entry we're executing in */
+        bl      invstr                          /* Find our address */
+invstr: mflr    r6                              /* Make it accessible */
+        mfmsr   r7
+        rlwinm  r4,r7,27,31,31                  /* extract MSR[IS] */
+        mfspr   r7, SPRN_PID0
+        slwi    r7,r7,16
+        or      r7,r7,r4
+        mtspr   SPRN_MAS6,r7
+        tlbsx   0,r6                            /* search MSR[IS], SPID=PID0 */
+#ifndef CONFIG_E200
+        mfspr   r7,SPRN_MAS1
+        andis.  r7,r7,MAS1_VALID@h
+        bne     match_TLB
+        mfspr   r7,SPRN_PID1
+        slwi    r7,r7,16
+        or      r7,r7,r4
+        mtspr   SPRN_MAS6,r7
+        tlbsx   0,r6                            /* search MSR[IS], SPID=PID1 */
+        mfspr   r7,SPRN_MAS1
+        andis.  r7,r7,MAS1_VALID@h
+        bne     match_TLB
+        mfspr   r7, SPRN_PID2
+        slwi    r7,r7,16
+        or      r7,r7,r4
+        mtspr   SPRN_MAS6,r7
+        tlbsx   0,r6                            /* Fall through, we had to match */
+#endif
+match_TLB:
+        mfspr   r7,SPRN_MAS0
+        rlwinm  r3,r7,16,20,31                  /* Extract MAS0(Entry) */
+
+        mfspr   r7,SPRN_MAS1                    /* Insure IPROT set */
+        oris    r7,r7,MAS1_IPROT@h
+        mtspr   SPRN_MAS1,r7
+        tlbwe
+
+/* 2. Invalidate all entries except the entry we're executing in */
+        mfspr   r9,SPRN_TLB1CFG
+        andi.   r9,r9,0xfff
+        li      r6,0                            /* Set Entry counter to 0 */
+1:      lis     r7,0x1000                       /* Set MAS0(TLBSEL) = 1 */
+        rlwimi  r7,r6,16,4,15                   /* Setup MAS0 = TLBSEL | ESEL(r6) */
+        mtspr   SPRN_MAS0,r7
+        tlbre
+        mfspr   r7,SPRN_MAS1
+        rlwinm  r7,r7,0,2,31                    /* Clear MAS1 Valid and IPROT */
+        cmpw    r3,r6
+        beq     skpinv                          /* Dont update the current execution TLB */
+        mtspr   SPRN_MAS1,r7
+        tlbwe
+        isync
+skpinv: addi    r6,r6,1                         /* Increment */
+        cmpw    r6,r9                           /* Are we done? */
+        bne     1b                              /* If not, repeat */
+
+        /* Invalidate TLB0 */
+        li      r6,0x04
+        tlbivax 0,r6
+#ifdef CONFIG_SMP
+        tlbsync
+#endif
+        /* Invalidate TLB1 */
+        li      r6,0x0c
+        tlbivax 0,r6
+#ifdef CONFIG_SMP
+        tlbsync
+#endif
+        msync
+
+/* 3. Setup a temp mapping and jump to it */
+        andi.   r5, r3, 0x1     /* Find an entry not used and is non-zero */
+        addi    r5, r5, 0x1
+        lis     r7,0x1000       /* Set MAS0(TLBSEL) = 1 */
+        rlwimi  r7,r3,16,4,15   /* Setup MAS0 = TLBSEL | ESEL(r3) */
+        mtspr   SPRN_MAS0,r7
+        tlbre
+
+        /* Just modify the entry ID and EPN for the temp mapping */
+        lis     r7,0x1000       /* Set MAS0(TLBSEL) = 1 */
+        rlwimi  r7,r5,16,4,15   /* Setup MAS0 = TLBSEL | ESEL(r5) */
+        mtspr   SPRN_MAS0,r7
+        xori    r6,r4,1         /* Setup TMP mapping in the other Address space */
+        slwi    r6,r6,12
+        oris    r6,r6,(MAS1_VALID|MAS1_IPROT)@h
+        ori     r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_4K))@l
+        mtspr   SPRN_MAS1,r6
+        mfspr   r6,SPRN_MAS2
+        li      r7,0            /* temp EPN = 0 */
+        rlwimi  r7,r6,0,20,31
+        mtspr   SPRN_MAS2,r7
+        tlbwe
+
+        xori    r6,r4,1
+        slwi    r6,r6,5         /* setup new context with other address space */
+        bl      1f              /* Find our address */
+1:      mflr    r9
+        rlwimi  r7,r9,0,20,31
+        addi    r7,r7,24
+        mtspr   SPRN_SRR0,r7
+        mtspr   SPRN_SRR1,r6
+        rfi
+
+/* 4. Clear out PIDs & Search info */
+        li      r6,0
+        mtspr   SPRN_PID0,r6
+#ifndef CONFIG_E200
+        mtspr   SPRN_PID1,r6
+        mtspr   SPRN_PID2,r6
+#endif
+        mtspr   SPRN_MAS6,r6
+
+/* 5. Invalidate mapping we started in */
+        lis     r7,0x1000       /* Set MAS0(TLBSEL) = 1 */
+        rlwimi  r7,r3,16,4,15   /* Setup MAS0 = TLBSEL | ESEL(r3) */
+        mtspr   SPRN_MAS0,r7
+        tlbre
+        li      r6,0
+        mtspr   SPRN_MAS1,r6
+        tlbwe
+        /* Invalidate TLB1 */
+        li      r9,0x0c
+        tlbivax 0,r9
+#ifdef CONFIG_SMP
+        tlbsync
+#endif
+        msync
+
+/* 6. Setup KERNELBASE mapping in TLB1[0] */
+        lis     r6,0x1000               /* Set MAS0(TLBSEL) = TLB1(1), ESEL = 0 */
+        mtspr   SPRN_MAS0,r6
+        lis     r6,(MAS1_VALID|MAS1_IPROT)@h
+        ori     r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_16M))@l
+        mtspr   SPRN_MAS1,r6
+        li      r7,0
+        lis     r6,KERNELBASE@h
+        ori     r6,r6,KERNELBASE@l
+        rlwimi  r6,r7,0,20,31
+        mtspr   SPRN_MAS2,r6
+        li      r7,(MAS3_SX|MAS3_SW|MAS3_SR)
+        mtspr   SPRN_MAS3,r7
+        tlbwe
+
+/* 7. Jump to KERNELBASE mapping */
+        lis     r7,MSR_KERNEL@h
+        ori     r7,r7,MSR_KERNEL@l
+        bl      1f                      /* Find our address */
+1:      mflr    r9
+        rlwimi  r6,r9,0,20,31
+        addi    r6,r6,24
+        mtspr   SPRN_SRR0,r6
+        mtspr   SPRN_SRR1,r7
+        rfi                             /* start execution out of TLB1[0] entry */
+
+/* 8. Clear out the temp mapping */
+        lis     r7,0x1000       /* Set MAS0(TLBSEL) = 1 */
+        rlwimi  r7,r5,16,4,15   /* Setup MAS0 = TLBSEL | ESEL(r5) */
+        mtspr   SPRN_MAS0,r7
+        tlbre
+        mtspr   SPRN_MAS1,r8
+        tlbwe
+        /* Invalidate TLB1 */
+        li      r9,0x0c
+        tlbivax 0,r9
+#ifdef CONFIG_SMP
+        tlbsync
+#endif
+        msync
+
+        /* Establish the interrupt vector offsets */
+        SET_IVOR(0,  CriticalInput);
+        SET_IVOR(1,  MachineCheck);
+        SET_IVOR(2,  DataStorage);
+        SET_IVOR(3,  InstructionStorage);
+        SET_IVOR(4,  ExternalInput);
+        SET_IVOR(5,  Alignment);
+        SET_IVOR(6,  Program);
+        SET_IVOR(7,  FloatingPointUnavailable);
+        SET_IVOR(8,  SystemCall);
+        SET_IVOR(9,  AuxillaryProcessorUnavailable);
+        SET_IVOR(10, Decrementer);
+        SET_IVOR(11, FixedIntervalTimer);
+        SET_IVOR(12, WatchdogTimer);
+        SET_IVOR(13, DataTLBError);
+        SET_IVOR(14, InstructionTLBError);
+        SET_IVOR(15, Debug);
+        SET_IVOR(32, SPEUnavailable);
+        SET_IVOR(33, SPEFloatingPointData);
+        SET_IVOR(34, SPEFloatingPointRound);
+#ifndef CONFIG_E200
+        SET_IVOR(35, PerformanceMonitor);
+#endif
+
+        /* Establish the interrupt vector base */
+        lis     r4,interrupt_base@h     /* IVPR only uses the high 16-bits */
+        mtspr   SPRN_IVPR,r4
+
+        /* Setup the defaults for TLB entries */
+        li      r2,(MAS4_TSIZED(BOOKE_PAGESZ_4K))@l
+#ifdef CONFIG_E200
+        oris    r2,r2,MAS4_TLBSELD(1)@h
+#endif
+        mtspr   SPRN_MAS4, r2
+
+#if 0
+        /* Enable DOZE */
+        mfspr   r2,SPRN_HID0
+        oris    r2,r2,HID0_DOZE@h
+        mtspr   SPRN_HID0, r2
+#endif
+#ifdef CONFIG_E200
+        /* enable dedicated debug exception handling resources (Debug APU) */
+        mfspr   r2,SPRN_HID0
+        ori     r2,r2,HID0_DAPUEN@l
+        mtspr   SPRN_HID0,r2
+#endif
+
+#if !defined(CONFIG_BDI_SWITCH)
+        /*
+         * The Abatron BDI JTAG debugger does not tolerate others
+         * mucking with the debug registers.
+         */
+        lis     r2,DBCR0_IDM@h
+        mtspr   SPRN_DBCR0,r2
+        /* clear any residual debug events */
+        li      r2,-1
+        mtspr   SPRN_DBSR,r2
+#endif
+
+        /*
+         * This is where the main kernel code starts.
+         */
+
+        /* ptr to current */
+        lis     r2,init_task@h
+        ori     r2,r2,init_task@l
+
+        /* ptr to current thread */
+        addi    r4,r2,THREAD    /* init task's THREAD */
+        mtspr   SPRN_SPRG3,r4
+
+        /* stack */
+        lis     r1,init_thread_union@h
+        ori     r1,r1,init_thread_union@l
+        li      r0,0
+        stwu    r0,THREAD_SIZE-STACK_FRAME_OVERHEAD(r1)
+
+        bl      early_init
+
+        mfspr   r3,SPRN_TLB1CFG
+        andi.   r3,r3,0xfff
+        lis     r4,num_tlbcam_entries@ha
+        stw     r3,num_tlbcam_entries@l(r4)
+/*
+ * Decide what sort of machine this is and initialize the MMU.
+ */
+        mr      r3,r31
+        mr      r4,r30
+        mr      r5,r29
+        mr      r6,r28
+        mr      r7,r27
+        bl      machine_init
+        bl      MMU_init
+
+        /* Setup PTE pointers for the Abatron bdiGDB */
+        lis     r6, swapper_pg_dir@h
+        ori     r6, r6, swapper_pg_dir@l
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        lis     r4, KERNELBASE@h
+        ori     r4, r4, KERNELBASE@l
+        stw     r5, 0(r4)       /* Save abatron_pteptrs at a fixed location */
+        stw     r6, 0(r5)
+
+        /* Let's move on */
+        lis     r4,start_kernel@h
+        ori     r4,r4,start_kernel@l
+        lis     r3,MSR_KERNEL@h
+        ori     r3,r3,MSR_KERNEL@l
+        mtspr   SPRN_SRR0,r4
+        mtspr   SPRN_SRR1,r3
+        rfi                     /* change context and jump to start_kernel */
+
+/* Macros to hide the PTE size differences
+ *
+ * FIND_PTE -- walks the page tables given EA & pgdir pointer
+ *   r10 -- EA of fault
+ *   r11 -- PGDIR pointer
+ *   r12 -- free
+ *   label 2: is the bailout case
+ *
+ * if we find the pte (fall through):
+ *   r11 is low pte word
+ *   r12 is pointer to the pte
+ */
+#ifdef CONFIG_PTE_64BIT
+#define PTE_FLAGS_OFFSET        4
+#define FIND_PTE        \
+        rlwinm  r12, r10, 13, 19, 29;   /* Compute pgdir/pmd offset */  \
+        lwzx    r11, r12, r11;          /* Get pgd/pmd entry */         \
+        rlwinm. r12, r11, 0, 0, 20;     /* Extract pt base address */   \
+        beq     2f;                     /* Bail if no table */          \
+        rlwimi  r12, r10, 23, 20, 28;   /* Compute pte address */       \
+        lwz     r11, 4(r12);            /* Get pte entry */
+#else
+#define PTE_FLAGS_OFFSET        0
+#define FIND_PTE        \
+        rlwimi  r11, r10, 12, 20, 29;   /* Create L1 (pgdir/pmd) address */     \
+        lwz     r11, 0(r11);            /* Get L1 entry */                      \
+        rlwinm. r12, r11, 0, 0, 19;     /* Extract L2 (pte) base address */     \
+        beq     2f;                     /* Bail if no table */                  \
+        rlwimi  r12, r10, 22, 20, 29;   /* Compute PTE address */               \
+        lwz     r11, 0(r12);            /* Get Linux PTE */
+#endif
+
+/*
+ * Interrupt vector entry code
+ *
+ * The Book E MMUs are always on so we don't need to handle
+ * interrupts in real mode as with previous PPC processors. In
+ * this case we handle interrupts in the kernel virtual address
+ * space.
+ *
+ * Interrupt vectors are dynamically placed relative to the
+ * interrupt prefix as determined by the address of interrupt_base.
+ * The interrupt vectors offsets are programmed using the labels
+ * for each interrupt vector entry.
+ *
+ * Interrupt vectors must be aligned on a 16 byte boundary.
+ * We align on a 32 byte cache line boundary for good measure.
+ */
+
+interrupt_base:
+        /* Critical Input Interrupt */
+        CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
+
+        /* Machine Check Interrupt */
+#ifdef CONFIG_E200
+        /* no RFMCI, MCSRRs on E200 */
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
+#else
+        MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
+#endif
+
+        /* Data Storage Interrupt */
+        START_EXCEPTION(DataStorage)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+        mtspr   SPRN_SPRG4W, r12
+        mtspr   SPRN_SPRG5W, r13
+        mfcr    r11
+        mtspr   SPRN_SPRG7W, r11
+
+        /*
+         * Check if it was a store fault, if not then bail
+         * because a user tried to access a kernel or
+         * read-protected page.  Otherwise, get the
+         * offending address and handle it.
+         */
+        mfspr   r10, SPRN_ESR
+        andis.  r10, r10, ESR_ST@h
+        beq     2f
+
+        mfspr   r10, SPRN_DEAR          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        ori     r11, r11, TASK_SIZE@l
+        cmplw   0, r10, r11
+        bge     2f
+
+        /* Get the PGD for the current thread */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+4:
+        FIND_PTE
+
+        /* Are _PAGE_USER & _PAGE_RW set & _PAGE_HWWRITE not? */
+        andi.   r13, r11, _PAGE_RW|_PAGE_USER|_PAGE_HWWRITE
+        cmpwi   0, r13, _PAGE_RW|_PAGE_USER
+        bne     2f                      /* Bail if not */
+
+        /* Update 'changed'. */
+        ori     r11, r11, _PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_HWWRITE
+        stw     r11, PTE_FLAGS_OFFSET(r12) /* Update Linux page table */
+
+        /* MAS2 not updated as the entry does exist in the tlb, this
+           fault taken to detect state transition (eg: COW -> DIRTY)
+         */
+        andi.   r11, r11, _PAGE_HWEXEC
+        rlwimi  r11, r11, 31, 27, 27    /* SX <- _PAGE_HWEXEC */
+        ori     r11, r11, (MAS3_UW|MAS3_SW|MAS3_UR|MAS3_SR)@l /* set static perms */
+
+        /* update search PID in MAS6, AS = 0 */
+        mfspr   r12, SPRN_PID0
+        slwi    r12, r12, 16
+        mtspr   SPRN_MAS6, r12
+
+        /* find the TLB index that caused the fault.  It has to be here. */
+        tlbsx   0, r10
+
+        /* only update the perm bits, assume the RPN is fine */
+        mfspr   r12, SPRN_MAS3
+        rlwimi  r12, r11, 0, 20, 31
+        mtspr   SPRN_MAS3,r12
+        tlbwe
+
+        /* Done...restore registers and get out of here.  */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        rfi                     /* Force context change */
+
+2:
+        /*
+         * The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       data_access
+
+        /* Instruction Storage Interrupt */
+        INSTRUCTION_STORAGE_EXCEPTION
+
+        /* External Input Interrupt */
+        EXCEPTION(0x0500, ExternalInput, do_IRQ, EXC_XFER_LITE)
+
+        /* Alignment Interrupt */
+        ALIGNMENT_EXCEPTION
+
+        /* Program Interrupt */
+        PROGRAM_EXCEPTION
+
+        /* Floating Point Unavailable Interrupt */
+#ifdef CONFIG_PPC_FPU
+        FP_UNAVAILABLE_EXCEPTION
+#else
+#ifdef CONFIG_E200
+        /* E200 treats 'normal' floating point instructions as FP Unavail exception */
+        EXCEPTION(0x0800, FloatingPointUnavailable, program_check_exception, EXC_XFER_EE)
+#else
+        EXCEPTION(0x0800, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
+#endif
+#endif
+
+        /* System Call Interrupt */
+        START_EXCEPTION(SystemCall)
+        NORMAL_EXCEPTION_PROLOG
+        EXC_XFER_EE_LITE(0x0c00, DoSyscall)
+
+        /* Auxillary Processor Unavailable Interrupt */
+        EXCEPTION(0x2900, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
+
+        /* Decrementer Interrupt */
+        DECREMENTER_EXCEPTION
+
+        /* Fixed Internal Timer Interrupt */
+        /* TODO: Add FIT support */
+        EXCEPTION(0x3100, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
+
+        /* Watchdog Timer Interrupt */
+#ifdef CONFIG_BOOKE_WDT
+        CRITICAL_EXCEPTION(0x3200, WatchdogTimer, WatchdogException)
+#else
+        CRITICAL_EXCEPTION(0x3200, WatchdogTimer, unknown_exception)
+#endif
+
+        /* Data TLB Error Interrupt */
+        START_EXCEPTION(DataTLBError)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+        mtspr   SPRN_SPRG4W, r12
+        mtspr   SPRN_SPRG5W, r13
+        mfcr    r11
+        mtspr   SPRN_SPRG7W, r11
+        mfspr   r10, SPRN_DEAR          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        ori     r11, r11, TASK_SIZE@l
+        cmplw   5, r10, r11
+        blt     5, 3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+
+        mfspr   r12,SPRN_MAS1           /* Set TID to 0 */
+        rlwinm  r12,r12,0,16,1
+        mtspr   SPRN_MAS1,r12
+
+        b       4f
+
+        /* Get the PGD for the current thread */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+
+4:
+        FIND_PTE
+        andi.   r13, r11, _PAGE_PRESENT /* Is the page present? */
+        beq     2f                      /* Bail if not present */
+
+#ifdef CONFIG_PTE_64BIT
+        lwz     r13, 0(r12)
+#endif
+        ori     r11, r11, _PAGE_ACCESSED
+        stw     r11, PTE_FLAGS_OFFSET(r12)
+
+         /* Jump to common tlb load */
+        b       finish_tlb_load
+2:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       data_access
+
+        /* Instruction TLB Error Interrupt */
+        /*
+         * Nearly the same as above, except we get our
+         * information from different registers and bailout
+         * to a different point.
+         */
+        START_EXCEPTION(InstructionTLBError)
+        mtspr   SPRN_SPRG0, r10         /* Save some working registers */
+        mtspr   SPRN_SPRG1, r11
+        mtspr   SPRN_SPRG4W, r12
+        mtspr   SPRN_SPRG5W, r13
+        mfcr    r11
+        mtspr   SPRN_SPRG7W, r11
+        mfspr   r10, SPRN_SRR0          /* Get faulting address */
+
+        /* If we are faulting a kernel address, we have to use the
+         * kernel page tables.
+         */
+        lis     r11, TASK_SIZE@h
+        ori     r11, r11, TASK_SIZE@l
+        cmplw   5, r10, r11
+        blt     5, 3f
+        lis     r11, swapper_pg_dir@h
+        ori     r11, r11, swapper_pg_dir@l
+
+        mfspr   r12,SPRN_MAS1           /* Set TID to 0 */
+        rlwinm  r12,r12,0,16,1
+        mtspr   SPRN_MAS1,r12
+
+        b       4f
+
+        /* Get the PGD for the current thread */
+3:
+        mfspr   r11,SPRN_SPRG3
+        lwz     r11,PGDIR(r11)
+
+4:
+        FIND_PTE
+        andi.   r13, r11, _PAGE_PRESENT /* Is the page present? */
+        beq     2f                      /* Bail if not present */
+
+#ifdef CONFIG_PTE_64BIT
+        lwz     r13, 0(r12)
+#endif
+        ori     r11, r11, _PAGE_ACCESSED
+        stw     r11, PTE_FLAGS_OFFSET(r12)
+
+        /* Jump to common TLB load point */
+        b       finish_tlb_load
+
+2:
+        /* The bailout.  Restore registers to pre-exception conditions
+         * and call the heavyweights to help us out.
+         */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        b       InstructionStorage
+
+#ifdef CONFIG_SPE
+        /* SPE Unavailable */
+        START_EXCEPTION(SPEUnavailable)
+        NORMAL_EXCEPTION_PROLOG
+        bne     load_up_spe
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE_LITE(0x2010, KernelSPE)
+#else
+        EXCEPTION(0x2020, SPEUnavailable, unknown_exception, EXC_XFER_EE)
+#endif /* CONFIG_SPE */
+
+        /* SPE Floating Point Data */
+#ifdef CONFIG_SPE
+        EXCEPTION(0x2030, SPEFloatingPointData, SPEFloatingPointException, EXC_XFER_EE);
+#else
+        EXCEPTION(0x2040, SPEFloatingPointData, unknown_exception, EXC_XFER_EE)
+#endif /* CONFIG_SPE */
+
+        /* SPE Floating Point Round */
+        EXCEPTION(0x2050, SPEFloatingPointRound, unknown_exception, EXC_XFER_EE)
+
+        /* Performance Monitor */
+        EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD)
+
+
+        /* Debug Interrupt */
+        DEBUG_EXCEPTION
+
+/*
+ * Local functions
+ */
+
+        /*
+         * Data TLB exceptions will bail out to this point
+         * if they can't resolve the lightweight TLB fault.
+         */
+data_access:
+        NORMAL_EXCEPTION_PROLOG
+        mfspr   r5,SPRN_ESR             /* Grab the ESR, save it, pass arg3 */
+        stw     r5,_ESR(r11)
+        mfspr   r4,SPRN_DEAR            /* Grab the DEAR, save it, pass arg2 */
+        andis.  r10,r5,(ESR_ILK|ESR_DLK)@h
+        bne     1f
+        EXC_XFER_EE_LITE(0x0300, handle_page_fault)
+1:
+        addi    r3,r1,STACK_FRAME_OVERHEAD
+        EXC_XFER_EE_LITE(0x0300, CacheLockingException)
+
+/*
+
+ * Both the instruction and data TLB miss get to this
+ * point to load the TLB.
+ *      r10 - EA of fault
+ *      r11 - TLB (info from Linux PTE)
+ *      r12, r13 - available to use
+ *      CR5 - results of addr < TASK_SIZE
+ *      MAS0, MAS1 - loaded with proper value when we get here
+ *      MAS2, MAS3 - will need additional info from Linux PTE
+ *      Upon exit, we reload everything and RFI.
+ */
+finish_tlb_load:
+        /*
+         * We set execute, because we don't have the granularity to
+         * properly set this at the page level (Linux problem).
+         * Many of these bits are software only.  Bits we don't set
+         * here we (properly should) assume have the appropriate value.
+         */
+
+        mfspr   r12, SPRN_MAS2
+#ifdef CONFIG_PTE_64BIT
+        rlwimi  r12, r11, 26, 24, 31    /* extract ...WIMGE from pte */
+#else
+        rlwimi  r12, r11, 26, 27, 31    /* extract WIMGE from pte */
+#endif
+        mtspr   SPRN_MAS2, r12
+
+        bge     5, 1f
+
+        /* is user addr */
+        andi.   r12, r11, (_PAGE_USER | _PAGE_HWWRITE | _PAGE_HWEXEC)
+        andi.   r10, r11, _PAGE_USER    /* Test for _PAGE_USER */
+        srwi    r10, r12, 1
+        or      r12, r12, r10   /* Copy user perms into supervisor */
+        iseleq  r12, 0, r12
+        b       2f
+
+        /* is kernel addr */
+1:      rlwinm  r12, r11, 31, 29, 29    /* Extract _PAGE_HWWRITE into SW */
+        ori     r12, r12, (MAS3_SX | MAS3_SR)
+
+#ifdef CONFIG_PTE_64BIT
+2:      rlwimi  r12, r13, 24, 0, 7      /* grab RPN[32:39] */
+        rlwimi  r12, r11, 24, 8, 19     /* grab RPN[40:51] */
+        mtspr   SPRN_MAS3, r12
+BEGIN_FTR_SECTION
+        srwi    r10, r13, 8             /* grab RPN[8:31] */
+        mtspr   SPRN_MAS7, r10
+END_FTR_SECTION_IFSET(CPU_FTR_BIG_PHYS)
+#else
+2:      rlwimi  r11, r12, 0, 20, 31     /* Extract RPN from PTE and merge with perms */
+        mtspr   SPRN_MAS3, r11
+#endif
+#ifdef CONFIG_E200
+        /* Round robin TLB1 entries assignment */
+        mfspr   r12, SPRN_MAS0
+
+        /* Extract TLB1CFG(NENTRY) */
+        mfspr   r11, SPRN_TLB1CFG
+        andi.   r11, r11, 0xfff
+
+        /* Extract MAS0(NV) */
+        andi.   r13, r12, 0xfff
+        addi    r13, r13, 1
+        cmpw    0, r13, r11
+        addi    r12, r12, 1
+
+        /* check if we need to wrap */
+        blt     7f
+
+        /* wrap back to first free tlbcam entry */
+        lis     r13, tlbcam_index@ha
+        lwz     r13, tlbcam_index@l(r13)
+        rlwimi  r12, r13, 0, 20, 31
+7:
+        mtspr   SPRN_MAS0,r12
+#endif /* CONFIG_E200 */
+
+        tlbwe
+
+        /* Done...restore registers and get out of here.  */
+        mfspr   r11, SPRN_SPRG7R
+        mtcr    r11
+        mfspr   r13, SPRN_SPRG5R
+        mfspr   r12, SPRN_SPRG4R
+        mfspr   r11, SPRN_SPRG1
+        mfspr   r10, SPRN_SPRG0
+        rfi                                     /* Force context change */
+
+#ifdef CONFIG_SPE
+/* Note that the SPE support is closely modeled after the AltiVec
+ * support.  Changes to one are likely to be applicable to the
+ * other!  */
+load_up_spe:
+/*
+ * Disable SPE for the task which had SPE previously,
+ * and save its SPE registers in its thread_struct.
+ * Enables SPE for use in the kernel on return.
+ * On SMP we know the SPE units are free, since we give it up every
+ * switch.  -- Kumar
+ */
+        mfmsr   r5
+        oris    r5,r5,MSR_SPE@h
+        mtmsr   r5                      /* enable use of SPE now */
+        isync
+/*
+ * For SMP, we don't do lazy SPE switching because it just gets too
+ * horrendously complex, especially when a task switches from one CPU
+ * to another.  Instead we call giveup_spe in switch_to.
+ */
+#ifndef CONFIG_SMP
+        lis     r3,last_task_used_spe@ha
+        lwz     r4,last_task_used_spe@l(r3)
+        cmpi    0,r4,0
+        beq     1f
+        addi    r4,r4,THREAD    /* want THREAD of last_task_used_spe */
+        SAVE_32EVRS(0,r10,r4)
+        evxor   evr10, evr10, evr10     /* clear out evr10 */
+        evmwumiaa evr10, evr10, evr10   /* evr10 <- ACC = 0 * 0 + ACC */
+        li      r5,THREAD_ACC
+        evstddx evr10, r4, r5           /* save off accumulator */
+        lwz     r5,PT_REGS(r4)
+        lwz     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        lis     r10,MSR_SPE@h
+        andc    r4,r4,r10       /* disable SPE for previous task */
+        stw     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+1:
+#endif /* CONFIG_SMP */
+        /* enable use of SPE after return */
+        oris    r9,r9,MSR_SPE@h
+        mfspr   r5,SPRN_SPRG3           /* current task's THREAD (phys) */
+        li      r4,1
+        li      r10,THREAD_ACC
+        stw     r4,THREAD_USED_SPE(r5)
+        evlddx  evr4,r10,r5
+        evmra   evr4,evr4
+        REST_32EVRS(0,r10,r5)
+#ifndef CONFIG_SMP
+        subi    r4,r5,THREAD
+        stw     r4,last_task_used_spe@l(r3)
+#endif /* CONFIG_SMP */
+        /* restore registers and return */
+2:      REST_4GPRS(3, r11)
+        lwz     r10,_CCR(r11)
+        REST_GPR(1, r11)
+        mtcr    r10
+        lwz     r10,_LINK(r11)
+        mtlr    r10
+        REST_GPR(10, r11)
+        mtspr   SPRN_SRR1,r9
+        mtspr   SPRN_SRR0,r12
+        REST_GPR(9, r11)
+        REST_GPR(12, r11)
+        lwz     r11,GPR11(r11)
+        SYNC
+        rfi
+
+/*
+ * SPE unavailable trap from kernel - print a message, but let
+ * the task use SPE in the kernel until it returns to user mode.
+ */
+KernelSPE:
+        lwz     r3,_MSR(r1)
+        oris    r3,r3,MSR_SPE@h
+        stw     r3,_MSR(r1)     /* enable use of SPE after return */
+        lis     r3,87f@h
+        ori     r3,r3,87f@l
+        mr      r4,r2           /* current */
+        lwz     r5,_NIP(r1)
+        bl      printk
+        b       ret_from_except
+87:     .string "SPE used in kernel  (task=%p, pc=%x)  \n"
+        .align  4,0
+
+#endif /* CONFIG_SPE */
+
+/*
+ * Global functions
+ */
+
+/*
+ * extern void loadcam_entry(unsigned int index)
+ *
+ * Load TLBCAM[index] entry in to the L2 CAM MMU
+ */
+_GLOBAL(loadcam_entry)
+        lis     r4,TLBCAM@ha
+        addi    r4,r4,TLBCAM@l
+        mulli   r5,r3,20
+        add     r3,r5,r4
+        lwz     r4,0(r3)
+        mtspr   SPRN_MAS0,r4
+        lwz     r4,4(r3)
+        mtspr   SPRN_MAS1,r4
+        lwz     r4,8(r3)
+        mtspr   SPRN_MAS2,r4
+        lwz     r4,12(r3)
+        mtspr   SPRN_MAS3,r4
+        tlbwe
+        isync
+        blr
+
+/*
+ * extern void giveup_altivec(struct task_struct *prev)
+ *
+ * The e500 core does not have an AltiVec unit.
+ */
+_GLOBAL(giveup_altivec)
+        blr
+
+#ifdef CONFIG_SPE
+/*
+ * extern void giveup_spe(struct task_struct *prev)
+ *
+ */
+_GLOBAL(giveup_spe)
+        mfmsr   r5
+        oris    r5,r5,MSR_SPE@h
+        SYNC
+        mtmsr   r5                      /* enable use of SPE now */
+        isync
+        cmpi    0,r3,0
+        beqlr-                          /* if no previous owner, done */
+        addi    r3,r3,THREAD            /* want THREAD of task */
+        lwz     r5,PT_REGS(r3)
+        cmpi    0,r5,0
+        SAVE_32EVRS(0, r4, r3)
+        evxor   evr6, evr6, evr6        /* clear out evr6 */
+        evmwumiaa evr6, evr6, evr6      /* evr6 <- ACC = 0 * 0 + ACC */
+        li      r4,THREAD_ACC
+        evstddx evr6, r4, r3            /* save off accumulator */
+        mfspr   r6,SPRN_SPEFSCR
+        stw     r6,THREAD_SPEFSCR(r3)   /* save spefscr register value */
+        beq     1f
+        lwz     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        lis     r3,MSR_SPE@h
+        andc    r4,r4,r3                /* disable SPE for previous task */
+        stw     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+1:
+#ifndef CONFIG_SMP
+        li      r5,0
+        lis     r4,last_task_used_spe@ha
+        stw     r5,last_task_used_spe@l(r4)
+#endif /* CONFIG_SMP */
+        blr
+#endif /* CONFIG_SPE */
+
+/*
+ * extern void giveup_fpu(struct task_struct *prev)
+ *
+ * Not all FSL Book-E cores have an FPU
+ */
+#ifndef CONFIG_PPC_FPU
+_GLOBAL(giveup_fpu)
+        blr
+#endif
+
+/*
+ * extern void abort(void)
+ *
+ * At present, this routine just applies a system reset.
+ */
+_GLOBAL(abort)
+        li      r13,0
+        mtspr   SPRN_DBCR0,r13          /* disable all debug events */
+        mfmsr   r13
+        ori     r13,r13,MSR_DE@l        /* Enable Debug Events */
+        mtmsr   r13
+        mfspr   r13,SPRN_DBCR0
+        lis     r13,(DBCR0_IDM|DBCR0_RST_CHIP)@h
+        mtspr   SPRN_DBCR0,r13
+
+_GLOBAL(set_context)
+
+#ifdef CONFIG_BDI_SWITCH
+        /* Context switch the PTE pointer for the Abatron BDI2000.
+         * The PGDIR is the second parameter.
+         */
+        lis     r5, abatron_pteptrs@h
+        ori     r5, r5, abatron_pteptrs@l
+        stw     r4, 0x4(r5)
+#endif
+        mtspr   SPRN_PID,r3
+        isync                   /* Force context change */
+        blr
+
+/*
+ * We put a few things here that have to be page-aligned. This stuff
+ * goes at the beginning of the data segment, which is page-aligned.
+ */
+        .data
+        .align  12
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
+        .space  4096
+        .globl  swapper_pg_dir
+swapper_pg_dir:
+        .space  4096
+
+/* Reserved 4k for the critical exception stack & 4k for the machine
+ * check stack per CPU for kernel mode exceptions */
+        .section .bss
+        .align 12
+exception_stack_bottom:
+        .space  BOOKE_EXCEPTION_STACK_SIZE * NR_CPUS
+        .globl  exception_stack_top
+exception_stack_top:
+
+/*
+ * This space gets a copy of optional info passed to us by the bootstrap
+ * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
+ */
+        .globl  cmd_line
+cmd_line:
+        .space  512
+
+/*
+ * Room for two PTE pointers, usually the kernel and current user pointers
+ * to their respective root page table.
+ */
+abatron_pteptrs:
+        .space  8
diff --git a/arch/powerpc/kernel/idle_6xx.S b/arch/powerpc/kernel/idle_6xx.S
new file mode 100644
index 000000000000..444fdcc769f1
--- /dev/null
+++ b/arch/powerpc/kernel/idle_6xx.S
@@ -0,0 +1,233 @@
+/*
+ *  This file contains the power_save function for 6xx & 7xxx CPUs
+ *  rewritten in assembler
+ *
+ *  Warning ! This code assumes that if your machine has a 750fx
+ *  it will have PLL 1 set to low speed mode (used during NAP/DOZE).
+ *  if this is not the case some additional changes will have to
+ *  be done to check a runtime var (a bit like powersave-nap)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <asm/reg.h>
+#include <asm/page.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+
+#undef DEBUG
+
+        .text
+
+/*
+ * Init idle, called at early CPU setup time from head.S for each CPU
+ * Make sure no rest of NAP mode remains in HID0, save default
+ * values for some CPU specific registers. Called with r24
+ * containing CPU number and r3 reloc offset
+ */
+_GLOBAL(init_idle_6xx)
+BEGIN_FTR_SECTION
+        mfspr   r4,SPRN_HID0
+        rlwinm  r4,r4,0,10,8    /* Clear NAP */
+        mtspr   SPRN_HID0, r4
+        b       1f
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
+        blr
+1:
+        slwi    r5,r24,2
+        add     r5,r5,r3
+BEGIN_FTR_SECTION
+        mfspr   r4,SPRN_MSSCR0
+        addis   r6,r5, nap_save_msscr0@ha
+        stw     r4,nap_save_msscr0@l(r6)
+END_FTR_SECTION_IFSET(CPU_FTR_NAP_DISABLE_L2_PR)
+BEGIN_FTR_SECTION
+        mfspr   r4,SPRN_HID1
+        addis   r6,r5,nap_save_hid1@ha
+        stw     r4,nap_save_hid1@l(r6)
+END_FTR_SECTION_IFSET(CPU_FTR_DUAL_PLL_750FX)
+        blr
+
+/*
+ * Here is the power_save_6xx function. This could eventually be
+ * split into several functions & changing the function pointer
+ * depending on the various features.
+ */
+_GLOBAL(ppc6xx_idle)
+        /* Check if we can nap or doze, put HID0 mask in r3
+         */
+        lis     r3, 0
+BEGIN_FTR_SECTION
+        lis     r3,HID0_DOZE@h
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_DOZE)
+BEGIN_FTR_SECTION
+        /* We must dynamically check for the NAP feature as it
+         * can be cleared by CPU init after the fixups are done
+         */
+        lis     r4,cur_cpu_spec@ha
+        lwz     r4,cur_cpu_spec@l(r4)
+        lwz     r4,CPU_SPEC_FEATURES(r4)
+        andi.   r0,r4,CPU_FTR_CAN_NAP
+        beq     1f
+        /* Now check if user or arch enabled NAP mode */
+        lis     r4,powersave_nap@ha
+        lwz     r4,powersave_nap@l(r4)
+        cmpwi   0,r4,0
+        beq     1f
+        lis     r3,HID0_NAP@h
+1:      
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
+        cmpwi   0,r3,0
+        beqlr
+
+        /* Clear MSR:EE */
+        mfmsr   r7
+        rlwinm  r0,r7,0,17,15
+        mtmsr   r0
+
+        /* Check current_thread_info()->flags */
+        rlwinm  r4,r1,0,0,18
+        lwz     r4,TI_FLAGS(r4)
+        andi.   r0,r4,_TIF_NEED_RESCHED
+        beq     1f
+        mtmsr   r7      /* out of line this ? */
+        blr
+1:      
+        /* Some pre-nap cleanups needed on some CPUs */
+        andis.  r0,r3,HID0_NAP@h
+        beq     2f
+BEGIN_FTR_SECTION
+        /* Disable L2 prefetch on some 745x and try to ensure
+         * L2 prefetch engines are idle. As explained by errata
+         * text, we can't be sure they are, we just hope very hard
+         * that well be enough (sic !). At least I noticed Apple
+         * doesn't even bother doing the dcbf's here...
+         */
+        mfspr   r4,SPRN_MSSCR0
+        rlwinm  r4,r4,0,0,29
+        sync
+        mtspr   SPRN_MSSCR0,r4
+        sync
+        isync
+        lis     r4,KERNELBASE@h
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+END_FTR_SECTION_IFSET(CPU_FTR_NAP_DISABLE_L2_PR)
+#ifdef DEBUG
+        lis     r6,nap_enter_count@ha
+        lwz     r4,nap_enter_count@l(r6)
+        addi    r4,r4,1
+        stw     r4,nap_enter_count@l(r6)
+#endif  
+2:
+BEGIN_FTR_SECTION
+        /* Go to low speed mode on some 750FX */
+        lis     r4,powersave_lowspeed@ha
+        lwz     r4,powersave_lowspeed@l(r4)
+        cmpwi   0,r4,0
+        beq     1f
+        mfspr   r4,SPRN_HID1
+        oris    r4,r4,0x0001
+        mtspr   SPRN_HID1,r4
+1:      
+END_FTR_SECTION_IFSET(CPU_FTR_DUAL_PLL_750FX)
+
+        /* Go to NAP or DOZE now */     
+        mfspr   r4,SPRN_HID0
+        lis     r5,(HID0_NAP|HID0_SLEEP)@h
+BEGIN_FTR_SECTION
+        oris    r5,r5,HID0_DOZE@h
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_DOZE)
+        andc    r4,r4,r5
+        or      r4,r4,r3
+BEGIN_FTR_SECTION
+        oris    r4,r4,HID0_DPM@h        /* that should be done once for all  */
+END_FTR_SECTION_IFCLR(CPU_FTR_NO_DPM)
+        mtspr   SPRN_HID0,r4
+BEGIN_FTR_SECTION
+        DSSALL
+        sync
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+        ori     r7,r7,MSR_EE /* Could be ommited (already set) */
+        oris    r7,r7,MSR_POW@h
+        sync
+        isync
+        mtmsr   r7
+        isync
+        sync
+        blr
+        
+/*
+ * Return from NAP/DOZE mode, restore some CPU specific registers,
+ * we are called with DR/IR still off and r2 containing physical
+ * address of current.
+ */
+_GLOBAL(power_save_6xx_restore)
+        mfspr   r11,SPRN_HID0
+        rlwinm. r11,r11,0,10,8  /* Clear NAP & copy NAP bit !state to cr1 EQ */
+        cror    4*cr1+eq,4*cr0+eq,4*cr0+eq
+BEGIN_FTR_SECTION
+        rlwinm  r11,r11,0,9,7   /* Clear DOZE */
+END_FTR_SECTION_IFSET(CPU_FTR_CAN_DOZE)
+        mtspr   SPRN_HID0, r11
+
+#ifdef DEBUG
+        beq     cr1,1f
+        lis     r11,(nap_return_count-KERNELBASE)@ha
+        lwz     r9,nap_return_count@l(r11)
+        addi    r9,r9,1
+        stw     r9,nap_return_count@l(r11)
+1:
+#endif
+        
+        rlwinm  r9,r1,0,0,18
+        tophys(r9,r9)
+        lwz     r11,TI_CPU(r9)
+        slwi    r11,r11,2
+        /* Todo make sure all these are in the same page
+         * and load r22 (@ha part + CPU offset) only once
+         */
+BEGIN_FTR_SECTION
+        beq     cr1,1f
+        addis   r9,r11,(nap_save_msscr0-KERNELBASE)@ha
+        lwz     r9,nap_save_msscr0@l(r9)
+        mtspr   SPRN_MSSCR0, r9
+        sync
+        isync
+1:
+END_FTR_SECTION_IFSET(CPU_FTR_NAP_DISABLE_L2_PR)
+BEGIN_FTR_SECTION
+        addis   r9,r11,(nap_save_hid1-KERNELBASE)@ha
+        lwz     r9,nap_save_hid1@l(r9)
+        mtspr   SPRN_HID1, r9
+END_FTR_SECTION_IFSET(CPU_FTR_DUAL_PLL_750FX)
+        b       transfer_to_handler_cont
+
+        .data
+
+_GLOBAL(nap_save_msscr0)
+        .space  4*NR_CPUS
+
+_GLOBAL(nap_save_hid1)
+        .space  4*NR_CPUS
+
+_GLOBAL(powersave_nap)
+        .long   0
+_GLOBAL(powersave_lowspeed)
+        .long   0
+
+#ifdef DEBUG
+_GLOBAL(nap_enter_count)
+        .space  4
+_GLOBAL(nap_return_count)
+        .space  4
+#endif
diff --git a/arch/ppc64/kernel/idle_power4.S b/arch/powerpc/kernel/idle_power4.S
index ca02afe2a795..1494e2f177f7 100644
--- a/arch/ppc64/kernel/idle_power4.S
+++ b/arch/powerpc/kernel/idle_power4.S
@@ -39,13 +39,13 @@ END_FTR_SECTION_IFCLR(CPU_FTR_CAN_NAP)
          * can be cleared by CPU init after the fixups are done
          */
         LOADBASE(r3,cur_cpu_spec)
-        ld      r4,cur_cpu_spec@l(r3)
+        ld      r4,OFF(cur_cpu_spec)(r3)
         ld      r4,CPU_SPEC_FEATURES(r4)
         andi.   r0,r4,CPU_FTR_CAN_NAP
         beqlr
         /* Now check if user or arch enabled NAP mode */
         LOADBASE(r3,powersave_nap)
-        lwz     r4,powersave_nap@l(r3)
+        lwz     r4,OFF(powersave_nap)(r3)
         cmpwi   0,r4,0
         beqlr
 
@@ -63,8 +63,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_CAN_NAP)
         beq     1f
         mtmsrd  r7      /* out of line this ? */
         blr
-1:      
-        /* Go to NAP now */     
+1:
+        /* Go to NAP now */
 BEGIN_FTR_SECTION
         DSSALL
         sync
@@ -76,4 +76,3 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
         isync
         sync
         blr
-        
diff --git a/arch/ppc64/kernel/init_task.c b/arch/powerpc/kernel/init_task.c
index 941043ae040f..941043ae040f 100644
--- a/arch/ppc64/kernel/init_task.c
+++ b/arch/powerpc/kernel/init_task.c
diff --git a/arch/ppc64/kernel/lparmap.c b/arch/powerpc/kernel/lparmap.c
index b81de286df5e..b81de286df5e 100644
--- a/arch/ppc64/kernel/lparmap.c
+++ b/arch/powerpc/kernel/lparmap.c
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
new file mode 100644
index 000000000000..3bedb532aed9
--- /dev/null
+++ b/arch/powerpc/kernel/misc_32.S
@@ -0,0 +1,1037 @@
+/*
+ * This file contains miscellaneous low-level functions.
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/sys.h>
+#include <asm/unistd.h>
+#include <asm/errno.h>
+#include <asm/reg.h>
+#include <asm/page.h>
+#include <asm/cache.h>
+#include <asm/cputable.h>
+#include <asm/mmu.h>
+#include <asm/ppc_asm.h>
+#include <asm/thread_info.h>
+#include <asm/asm-offsets.h>
+
+        .text
+
+        .align  5
+_GLOBAL(__delay)
+        cmpwi   0,r3,0
+        mtctr   r3
+        beqlr
+1:      bdnz    1b
+        blr
+
+/*
+ * This returns the high 64 bits of the product of two 64-bit numbers.
+ */
+_GLOBAL(mulhdu)
+        cmpwi   r6,0
+        cmpwi   cr1,r3,0
+        mr      r10,r4
+        mulhwu  r4,r4,r5
+        beq     1f
+        mulhwu  r0,r10,r6
+        mullw   r7,r10,r5
+        addc    r7,r0,r7
+        addze   r4,r4
+1:      beqlr   cr1             /* all done if high part of A is 0 */
+        mr      r10,r3
+        mullw   r9,r3,r5
+        mulhwu  r3,r3,r5
+        beq     2f
+        mullw   r0,r10,r6
+        mulhwu  r8,r10,r6
+        addc    r7,r0,r7
+        adde    r4,r4,r8
+        addze   r3,r3
+2:      addc    r4,r4,r9
+        addze   r3,r3
+        blr
+
+/*
+ * Returns (address we're running at) - (address we were linked at)
+ * for use before the text and data are mapped to KERNELBASE.
+ */
+_GLOBAL(reloc_offset)
+        mflr    r0
+        bl      1f
+1:      mflr    r3
+        LOADADDR(r4,1b)
+        subf    r3,r4,r3
+        mtlr    r0
+        blr
+
+/*
+ * add_reloc_offset(x) returns x + reloc_offset().
+ */
+_GLOBAL(add_reloc_offset)
+        mflr    r0
+        bl      1f
+1:      mflr    r5
+        LOADADDR(r4,1b)
+        subf    r5,r4,r5
+        add     r3,r3,r5
+        mtlr    r0
+        blr
+
+/*
+ * sub_reloc_offset(x) returns x - reloc_offset().
+ */
+_GLOBAL(sub_reloc_offset)
+        mflr    r0
+        bl      1f
+1:      mflr    r5
+        lis     r4,1b@ha
+        addi    r4,r4,1b@l
+        subf    r5,r4,r5
+        subf    r3,r5,r3
+        mtlr    r0
+        blr
+
+/*
+ * reloc_got2 runs through the .got2 section adding an offset
+ * to each entry.
+ */
+_GLOBAL(reloc_got2)
+        mflr    r11
+        lis     r7,__got2_start@ha
+        addi    r7,r7,__got2_start@l
+        lis     r8,__got2_end@ha
+        addi    r8,r8,__got2_end@l
+        subf    r8,r7,r8
+        srwi.   r8,r8,2
+        beqlr
+        mtctr   r8
+        bl      1f
+1:      mflr    r0
+        lis     r4,1b@ha
+        addi    r4,r4,1b@l
+        subf    r0,r4,r0
+        add     r7,r0,r7
+2:      lwz     r0,0(r7)
+        add     r0,r0,r3
+        stw     r0,0(r7)
+        addi    r7,r7,4
+        bdnz    2b
+        mtlr    r11
+        blr
+
+/*
+ * identify_cpu,
+ * called with r3 = data offset and r4 = CPU number
+ * doesn't change r3
+ */
+_GLOBAL(identify_cpu)
+        addis   r8,r3,cpu_specs@ha
+        addi    r8,r8,cpu_specs@l
+        mfpvr   r7
+1:
+        lwz     r5,CPU_SPEC_PVR_MASK(r8)
+        and     r5,r5,r7
+        lwz     r6,CPU_SPEC_PVR_VALUE(r8)
+        cmplw   0,r6,r5
+        beq     1f
+        addi    r8,r8,CPU_SPEC_ENTRY_SIZE
+        b       1b
+1:
+        addis   r6,r3,cur_cpu_spec@ha
+        addi    r6,r6,cur_cpu_spec@l
+        sub     r8,r8,r3
+        stw     r8,0(r6)
+        blr
+
+/*
+ * do_cpu_ftr_fixups - goes through the list of CPU feature fixups
+ * and writes nop's over sections of code that don't apply for this cpu.
+ * r3 = data offset (not changed)
+ */
+_GLOBAL(do_cpu_ftr_fixups)
+        /* Get CPU 0 features */
+        addis   r6,r3,cur_cpu_spec@ha
+        addi    r6,r6,cur_cpu_spec@l
+        lwz     r4,0(r6)
+        add     r4,r4,r3
+        lwz     r4,CPU_SPEC_FEATURES(r4)
+
+        /* Get the fixup table */
+        addis   r6,r3,__start___ftr_fixup@ha
+        addi    r6,r6,__start___ftr_fixup@l
+        addis   r7,r3,__stop___ftr_fixup@ha
+        addi    r7,r7,__stop___ftr_fixup@l
+
+        /* Do the fixup */
+1:      cmplw   0,r6,r7
+        bgelr
+        addi    r6,r6,16
+        lwz     r8,-16(r6)      /* mask */
+        and     r8,r8,r4
+        lwz     r9,-12(r6)      /* value */
+        cmplw   0,r8,r9
+        beq     1b
+        lwz     r8,-8(r6)       /* section begin */
+        lwz     r9,-4(r6)       /* section end */
+        subf.   r9,r8,r9
+        beq     1b
+        /* write nops over the section of code */
+        /* todo: if large section, add a branch at the start of it */
+        srwi    r9,r9,2
+        mtctr   r9
+        add     r8,r8,r3
+        lis     r0,0x60000000@h /* nop */
+3:      stw     r0,0(r8)
+        andi.   r10,r4,CPU_FTR_SPLIT_ID_CACHE@l
+        beq     2f
+        dcbst   0,r8            /* suboptimal, but simpler */
+        sync
+        icbi    0,r8
+2:      addi    r8,r8,4
+        bdnz    3b
+        sync                    /* additional sync needed on g4 */
+        isync
+        b       1b
+
+/*
+ * call_setup_cpu - call the setup_cpu function for this cpu
+ * r3 = data offset, r24 = cpu number
+ *
+ * Setup function is called with:
+ *   r3 = data offset
+ *   r4 = ptr to CPU spec (relocated)
+ */
+_GLOBAL(call_setup_cpu)
+        addis   r4,r3,cur_cpu_spec@ha
+        addi    r4,r4,cur_cpu_spec@l
+        lwz     r4,0(r4)
+        add     r4,r4,r3
+        lwz     r5,CPU_SPEC_SETUP(r4)
+        cmpi    0,r5,0
+        add     r5,r5,r3
+        beqlr
+        mtctr   r5
+        bctr
+
+#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_6xx)
+
+/* This gets called by via-pmu.c to switch the PLL selection
+ * on 750fx CPU. This function should really be moved to some
+ * other place (as most of the cpufreq code in via-pmu
+ */
+_GLOBAL(low_choose_750fx_pll)
+        /* Clear MSR:EE */
+        mfmsr   r7
+        rlwinm  r0,r7,0,17,15
+        mtmsr   r0
+
+        /* If switching to PLL1, disable HID0:BTIC */
+        cmplwi  cr0,r3,0
+        beq     1f
+        mfspr   r5,SPRN_HID0
+        rlwinm  r5,r5,0,27,25
+        sync
+        mtspr   SPRN_HID0,r5
+        isync
+        sync
+
+1:
+        /* Calc new HID1 value */
+        mfspr   r4,SPRN_HID1    /* Build a HID1:PS bit from parameter */
+        rlwinm  r5,r3,16,15,15  /* Clear out HID1:PS from value read */
+        rlwinm  r4,r4,0,16,14   /* Could have I used rlwimi here ? */
+        or      r4,r4,r5
+        mtspr   SPRN_HID1,r4
+
+        /* Store new HID1 image */
+        rlwinm  r6,r1,0,0,18
+        lwz     r6,TI_CPU(r6)
+        slwi    r6,r6,2
+        addis   r6,r6,nap_save_hid1@ha
+        stw     r4,nap_save_hid1@l(r6)
+
+        /* If switching to PLL0, enable HID0:BTIC */
+        cmplwi  cr0,r3,0
+        bne     1f
+        mfspr   r5,SPRN_HID0
+        ori     r5,r5,HID0_BTIC
+        sync
+        mtspr   SPRN_HID0,r5
+        isync
+        sync
+
+1:
+        /* Return */
+        mtmsr   r7
+        blr
+
+_GLOBAL(low_choose_7447a_dfs)
+        /* Clear MSR:EE */
+        mfmsr   r7
+        rlwinm  r0,r7,0,17,15
+        mtmsr   r0
+        
+        /* Calc new HID1 value */
+        mfspr   r4,SPRN_HID1
+        insrwi  r4,r3,1,9       /* insert parameter into bit 9 */
+        sync
+        mtspr   SPRN_HID1,r4
+        sync
+        isync
+
+        /* Return */
+        mtmsr   r7
+        blr
+
+#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_6xx */
+
+/*
+ * complement mask on the msr then "or" some values on.
+ *     _nmask_and_or_msr(nmask, value_to_or)
+ */
+_GLOBAL(_nmask_and_or_msr)
+        mfmsr   r0              /* Get current msr */
+        andc    r0,r0,r3        /* And off the bits set in r3 (first parm) */
+        or      r0,r0,r4        /* Or on the bits in r4 (second parm) */
+        SYNC                    /* Some chip revs have problems here... */
+        mtmsr   r0              /* Update machine state */
+        isync
+        blr                     /* Done */
+
+
+/*
+ * Flush MMU TLB
+ */
+_GLOBAL(_tlbia)
+#if defined(CONFIG_40x)
+        sync                    /* Flush to memory before changing mapping */
+        tlbia
+        isync                   /* Flush shadow TLB */
+#elif defined(CONFIG_44x)
+        li      r3,0
+        sync
+
+        /* Load high watermark */
+        lis     r4,tlb_44x_hwater@ha
+        lwz     r5,tlb_44x_hwater@l(r4)
+
+1:      tlbwe   r3,r3,PPC44x_TLB_PAGEID
+        addi    r3,r3,1
+        cmpw    0,r3,r5
+        ble     1b
+
+        isync
+#elif defined(CONFIG_FSL_BOOKE)
+        /* Invalidate all entries in TLB0 */
+        li      r3, 0x04
+        tlbivax 0,3
+        /* Invalidate all entries in TLB1 */
+        li      r3, 0x0c
+        tlbivax 0,3
+        /* Invalidate all entries in TLB2 */
+        li      r3, 0x14
+        tlbivax 0,3
+        /* Invalidate all entries in TLB3 */
+        li      r3, 0x1c
+        tlbivax 0,3
+        msync
+#ifdef CONFIG_SMP
+        tlbsync
+#endif /* CONFIG_SMP */
+#else /* !(CONFIG_40x || CONFIG_44x || CONFIG_FSL_BOOKE) */
+#if defined(CONFIG_SMP)
+        rlwinm  r8,r1,0,0,18
+        lwz     r8,TI_CPU(r8)
+        oris    r8,r8,10
+        mfmsr   r10
+        SYNC
+        rlwinm  r0,r10,0,17,15          /* clear bit 16 (MSR_EE) */
+        rlwinm  r0,r0,0,28,26           /* clear DR */
+        mtmsr   r0
+        SYNC_601
+        isync
+        lis     r9,mmu_hash_lock@h
+        ori     r9,r9,mmu_hash_lock@l
+        tophys(r9,r9)
+10:     lwarx   r7,0,r9
+        cmpwi   0,r7,0
+        bne-    10b
+        stwcx.  r8,0,r9
+        bne-    10b
+        sync
+        tlbia
+        sync
+        TLBSYNC
+        li      r0,0
+        stw     r0,0(r9)                /* clear mmu_hash_lock */
+        mtmsr   r10
+        SYNC_601
+        isync
+#else /* CONFIG_SMP */
+        sync
+        tlbia
+        sync
+#endif /* CONFIG_SMP */
+#endif /* ! defined(CONFIG_40x) */
+        blr
+
+/*
+ * Flush MMU TLB for a particular address
+ */
+_GLOBAL(_tlbie)
+#if defined(CONFIG_40x)
+        tlbsx.  r3, 0, r3
+        bne     10f
+        sync
+        /* There are only 64 TLB entries, so r3 < 64, which means bit 25 is clear.
+         * Since 25 is the V bit in the TLB_TAG, loading this value will invalidate
+         * the TLB entry. */
+        tlbwe   r3, r3, TLB_TAG
+        isync
+10:
+#elif defined(CONFIG_44x)
+        mfspr   r4,SPRN_MMUCR
+        mfspr   r5,SPRN_PID                     /* Get PID */
+        rlwimi  r4,r5,0,24,31                   /* Set TID */
+        mtspr   SPRN_MMUCR,r4
+
+        tlbsx.  r3, 0, r3
+        bne     10f
+        sync
+        /* There are only 64 TLB entries, so r3 < 64,
+         * which means bit 22, is clear.  Since 22 is
+         * the V bit in the TLB_PAGEID, loading this
+         * value will invalidate the TLB entry.
+         */
+        tlbwe   r3, r3, PPC44x_TLB_PAGEID
+        isync
+10:
+#elif defined(CONFIG_FSL_BOOKE)
+        rlwinm  r4, r3, 0, 0, 19
+        ori     r5, r4, 0x08    /* TLBSEL = 1 */
+        ori     r6, r4, 0x10    /* TLBSEL = 2 */
+        ori     r7, r4, 0x18    /* TLBSEL = 3 */
+        tlbivax 0, r4
+        tlbivax 0, r5
+        tlbivax 0, r6
+        tlbivax 0, r7
+        msync
+#if defined(CONFIG_SMP)
+        tlbsync
+#endif /* CONFIG_SMP */
+#else /* !(CONFIG_40x || CONFIG_44x || CONFIG_FSL_BOOKE) */
+#if defined(CONFIG_SMP)
+        rlwinm  r8,r1,0,0,18
+        lwz     r8,TI_CPU(r8)
+        oris    r8,r8,11
+        mfmsr   r10
+        SYNC
+        rlwinm  r0,r10,0,17,15          /* clear bit 16 (MSR_EE) */
+        rlwinm  r0,r0,0,28,26           /* clear DR */
+        mtmsr   r0
+        SYNC_601
+        isync
+        lis     r9,mmu_hash_lock@h
+        ori     r9,r9,mmu_hash_lock@l
+        tophys(r9,r9)
+10:     lwarx   r7,0,r9
+        cmpwi   0,r7,0
+        bne-    10b
+        stwcx.  r8,0,r9
+        bne-    10b
+        eieio
+        tlbie   r3
+        sync
+        TLBSYNC
+        li      r0,0
+        stw     r0,0(r9)                /* clear mmu_hash_lock */
+        mtmsr   r10
+        SYNC_601
+        isync
+#else /* CONFIG_SMP */
+        tlbie   r3
+        sync
+#endif /* CONFIG_SMP */
+#endif /* ! CONFIG_40x */
+        blr
+
+/*
+ * Flush instruction cache.
+ * This is a no-op on the 601.
+ */
+_GLOBAL(flush_instruction_cache)
+#if defined(CONFIG_8xx)
+        isync
+        lis     r5, IDC_INVALL@h
+        mtspr   SPRN_IC_CST, r5
+#elif defined(CONFIG_4xx)
+#ifdef CONFIG_403GCX
+        li      r3, 512
+        mtctr   r3
+        lis     r4, KERNELBASE@h
+1:      iccci   0, r4
+        addi    r4, r4, 16
+        bdnz    1b
+#else
+        lis     r3, KERNELBASE@h
+        iccci   0,r3
+#endif
+#elif CONFIG_FSL_BOOKE
+BEGIN_FTR_SECTION
+        mfspr   r3,SPRN_L1CSR0
+        ori     r3,r3,L1CSR0_CFI|L1CSR0_CLFC
+        /* msync; isync recommended here */
+        mtspr   SPRN_L1CSR0,r3
+        isync
+        blr
+END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
+        mfspr   r3,SPRN_L1CSR1
+        ori     r3,r3,L1CSR1_ICFI|L1CSR1_ICLFR
+        mtspr   SPRN_L1CSR1,r3
+#else
+        mfspr   r3,SPRN_PVR
+        rlwinm  r3,r3,16,16,31
+        cmpwi   0,r3,1
+        beqlr                   /* for 601, do nothing */
+        /* 603/604 processor - use invalidate-all bit in HID0 */
+        mfspr   r3,SPRN_HID0
+        ori     r3,r3,HID0_ICFI
+        mtspr   SPRN_HID0,r3
+#endif /* CONFIG_8xx/4xx */
+        isync
+        blr
+
+/*
+ * Write any modified data cache blocks out to memory
+ * and invalidate the corresponding instruction cache blocks.
+ * This is a no-op on the 601.
+ *
+ * flush_icache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(flush_icache_range)
+BEGIN_FTR_SECTION
+        blr                             /* for 601, do nothing */
+END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
+        li      r5,L1_CACHE_BYTES-1
+        andc    r3,r3,r5
+        subf    r4,r3,r4
+        add     r4,r4,r5
+        srwi.   r4,r4,L1_CACHE_SHIFT
+        beqlr
+        mtctr   r4
+        mr      r6,r3
+1:      dcbst   0,r3
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    1b
+        sync                            /* wait for dcbst's to get to ram */
+        mtctr   r4
+2:      icbi    0,r6
+        addi    r6,r6,L1_CACHE_BYTES
+        bdnz    2b
+        sync                            /* additional sync needed on g4 */
+        isync
+        blr
+/*
+ * Write any modified data cache blocks out to memory.
+ * Does not invalidate the corresponding cache lines (especially for
+ * any corresponding instruction cache).
+ *
+ * clean_dcache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(clean_dcache_range)
+        li      r5,L1_CACHE_BYTES-1
+        andc    r3,r3,r5
+        subf    r4,r3,r4
+        add     r4,r4,r5
+        srwi.   r4,r4,L1_CACHE_SHIFT
+        beqlr
+        mtctr   r4
+
+1:      dcbst   0,r3
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    1b
+        sync                            /* wait for dcbst's to get to ram */
+        blr
+
+/*
+ * Write any modified data cache blocks out to memory and invalidate them.
+ * Does not invalidate the corresponding instruction cache blocks.
+ *
+ * flush_dcache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(flush_dcache_range)
+        li      r5,L1_CACHE_BYTES-1
+        andc    r3,r3,r5
+        subf    r4,r3,r4
+        add     r4,r4,r5
+        srwi.   r4,r4,L1_CACHE_SHIFT
+        beqlr
+        mtctr   r4
+
+1:      dcbf    0,r3
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    1b
+        sync                            /* wait for dcbst's to get to ram */
+        blr
+
+/*
+ * Like above, but invalidate the D-cache.  This is used by the 8xx
+ * to invalidate the cache so the PPC core doesn't get stale data
+ * from the CPM (no cache snooping here :-).
+ *
+ * invalidate_dcache_range(unsigned long start, unsigned long stop)
+ */
+_GLOBAL(invalidate_dcache_range)
+        li      r5,L1_CACHE_BYTES-1
+        andc    r3,r3,r5
+        subf    r4,r3,r4
+        add     r4,r4,r5
+        srwi.   r4,r4,L1_CACHE_SHIFT
+        beqlr
+        mtctr   r4
+
+1:      dcbi    0,r3
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    1b
+        sync                            /* wait for dcbi's to get to ram */
+        blr
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+/*
+ * 40x cores have 8K or 16K dcache and 32 byte line size.
+ * 44x has a 32K dcache and 32 byte line size.
+ * 8xx has 1, 2, 4, 8K variants.
+ * For now, cover the worst case of the 44x.
+ * Must be called with external interrupts disabled.
+ */
+#define CACHE_NWAYS     64
+#define CACHE_NLINES    16
+
+_GLOBAL(flush_dcache_all)
+        li      r4, (2 * CACHE_NWAYS * CACHE_NLINES)
+        mtctr   r4
+        lis     r5, KERNELBASE@h
+1:      lwz     r3, 0(r5)               /* Load one word from every line */
+        addi    r5, r5, L1_CACHE_BYTES
+        bdnz    1b
+        blr
+#endif /* CONFIG_NOT_COHERENT_CACHE */
+
+/*
+ * Flush a particular page from the data cache to RAM.
+ * Note: this is necessary because the instruction cache does *not*
+ * snoop from the data cache.
+ * This is a no-op on the 601 which has a unified cache.
+ *
+ *      void __flush_dcache_icache(void *page)
+ */
+_GLOBAL(__flush_dcache_icache)
+BEGIN_FTR_SECTION
+        blr                                     /* for 601, do nothing */
+END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
+        rlwinm  r3,r3,0,0,19                    /* Get page base address */
+        li      r4,4096/L1_CACHE_BYTES  /* Number of lines in a page */
+        mtctr   r4
+        mr      r6,r3
+0:      dcbst   0,r3                            /* Write line to ram */
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    0b
+        sync
+        mtctr   r4
+1:      icbi    0,r6
+        addi    r6,r6,L1_CACHE_BYTES
+        bdnz    1b
+        sync
+        isync
+        blr
+
+/*
+ * Flush a particular page from the data cache to RAM, identified
+ * by its physical address.  We turn off the MMU so we can just use
+ * the physical address (this may be a highmem page without a kernel
+ * mapping).
+ *
+ *      void __flush_dcache_icache_phys(unsigned long physaddr)
+ */
+_GLOBAL(__flush_dcache_icache_phys)
+BEGIN_FTR_SECTION
+        blr                                     /* for 601, do nothing */
+END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
+        mfmsr   r10
+        rlwinm  r0,r10,0,28,26                  /* clear DR */
+        mtmsr   r0
+        isync
+        rlwinm  r3,r3,0,0,19                    /* Get page base address */
+        li      r4,4096/L1_CACHE_BYTES  /* Number of lines in a page */
+        mtctr   r4
+        mr      r6,r3
+0:      dcbst   0,r3                            /* Write line to ram */
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    0b
+        sync
+        mtctr   r4
+1:      icbi    0,r6
+        addi    r6,r6,L1_CACHE_BYTES
+        bdnz    1b
+        sync
+        mtmsr   r10                             /* restore DR */
+        isync
+        blr
+
+/*
+ * Clear pages using the dcbz instruction, which doesn't cause any
+ * memory traffic (except to write out any cache lines which get
+ * displaced).  This only works on cacheable memory.
+ *
+ * void clear_pages(void *page, int order) ;
+ */
+_GLOBAL(clear_pages)
+        li      r0,4096/L1_CACHE_BYTES
+        slw     r0,r0,r4
+        mtctr   r0
+#ifdef CONFIG_8xx
+        li      r4, 0
+1:      stw     r4, 0(r3)
+        stw     r4, 4(r3)
+        stw     r4, 8(r3)
+        stw     r4, 12(r3)
+#else
+1:      dcbz    0,r3
+#endif
+        addi    r3,r3,L1_CACHE_BYTES
+        bdnz    1b
+        blr
+
+/*
+ * Copy a whole page.  We use the dcbz instruction on the destination
+ * to reduce memory traffic (it eliminates the unnecessary reads of
+ * the destination into cache).  This requires that the destination
+ * is cacheable.
+ */
+#define COPY_16_BYTES           \
+        lwz     r6,4(r4);       \
+        lwz     r7,8(r4);       \
+        lwz     r8,12(r4);      \
+        lwzu    r9,16(r4);      \
+        stw     r6,4(r3);       \
+        stw     r7,8(r3);       \
+        stw     r8,12(r3);      \
+        stwu    r9,16(r3)
+
+_GLOBAL(copy_page)
+        addi    r3,r3,-4
+        addi    r4,r4,-4
+
+#ifdef CONFIG_8xx
+        /* don't use prefetch on 8xx */
+        li      r0,4096/L1_CACHE_BYTES
+        mtctr   r0
+1:      COPY_16_BYTES
+        bdnz    1b
+        blr
+
+#else   /* not 8xx, we can prefetch */
+        li      r5,4
+
+#if MAX_COPY_PREFETCH > 1
+        li      r0,MAX_COPY_PREFETCH
+        li      r11,4
+        mtctr   r0
+11:     dcbt    r11,r4
+        addi    r11,r11,L1_CACHE_BYTES
+        bdnz    11b
+#else /* MAX_COPY_PREFETCH == 1 */
+        dcbt    r5,r4
+        li      r11,L1_CACHE_BYTES+4
+#endif /* MAX_COPY_PREFETCH */
+        li      r0,4096/L1_CACHE_BYTES - MAX_COPY_PREFETCH
+        crclr   4*cr0+eq
+2:
+        mtctr   r0
+1:
+        dcbt    r11,r4
+        dcbz    r5,r3
+        COPY_16_BYTES
+#if L1_CACHE_BYTES >= 32
+        COPY_16_BYTES
+#if L1_CACHE_BYTES >= 64
+        COPY_16_BYTES
+        COPY_16_BYTES
+#if L1_CACHE_BYTES >= 128
+        COPY_16_BYTES
+        COPY_16_BYTES
+        COPY_16_BYTES
+        COPY_16_BYTES
+#endif
+#endif
+#endif
+        bdnz    1b
+        beqlr
+        crnot   4*cr0+eq,4*cr0+eq
+        li      r0,MAX_COPY_PREFETCH
+        li      r11,4
+        b       2b
+#endif  /* CONFIG_8xx */
+
+/*
+ * void atomic_clear_mask(atomic_t mask, atomic_t *addr)
+ * void atomic_set_mask(atomic_t mask, atomic_t *addr);
+ */
+_GLOBAL(atomic_clear_mask)
+10:     lwarx   r5,0,r4
+        andc    r5,r5,r3
+        PPC405_ERR77(0,r4)
+        stwcx.  r5,0,r4
+        bne-    10b
+        blr
+_GLOBAL(atomic_set_mask)
+10:     lwarx   r5,0,r4
+        or      r5,r5,r3
+        PPC405_ERR77(0,r4)
+        stwcx.  r5,0,r4
+        bne-    10b
+        blr
+
+/*
+ * I/O string operations
+ *
+ * insb(port, buf, len)
+ * outsb(port, buf, len)
+ * insw(port, buf, len)
+ * outsw(port, buf, len)
+ * insl(port, buf, len)
+ * outsl(port, buf, len)
+ * insw_ns(port, buf, len)
+ * outsw_ns(port, buf, len)
+ * insl_ns(port, buf, len)
+ * outsl_ns(port, buf, len)
+ *
+ * The *_ns versions don't do byte-swapping.
+ */
+_GLOBAL(_insb)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,1
+        blelr-
+00:     lbz     r5,0(r3)
+        eieio
+        stbu    r5,1(r4)
+        bdnz    00b
+        blr
+
+_GLOBAL(_outsb)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,1
+        blelr-
+00:     lbzu    r5,1(r4)
+        stb     r5,0(r3)
+        eieio
+        bdnz    00b
+        blr
+
+_GLOBAL(_insw)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhbrx   r5,0,r3
+        eieio
+        sthu    r5,2(r4)
+        bdnz    00b
+        blr
+
+_GLOBAL(_outsw)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhzu    r5,2(r4)
+        eieio
+        sthbrx  r5,0,r3
+        bdnz    00b
+        blr
+
+_GLOBAL(_insl)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwbrx   r5,0,r3
+        eieio
+        stwu    r5,4(r4)
+        bdnz    00b
+        blr
+
+_GLOBAL(_outsl)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwzu    r5,4(r4)
+        stwbrx  r5,0,r3
+        eieio
+        bdnz    00b
+        blr
+
+_GLOBAL(__ide_mm_insw)
+_GLOBAL(_insw_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhz     r5,0(r3)
+        eieio
+        sthu    r5,2(r4)
+        bdnz    00b
+        blr
+
+_GLOBAL(__ide_mm_outsw)
+_GLOBAL(_outsw_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhzu    r5,2(r4)
+        sth     r5,0(r3)
+        eieio
+        bdnz    00b
+        blr
+
+_GLOBAL(__ide_mm_insl)
+_GLOBAL(_insl_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwz     r5,0(r3)
+        eieio
+        stwu    r5,4(r4)
+        bdnz    00b
+        blr
+
+_GLOBAL(__ide_mm_outsl)
+_GLOBAL(_outsl_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwzu    r5,4(r4)
+        stw     r5,0(r3)
+        eieio
+        bdnz    00b
+        blr
+
+/*
+ * Extended precision shifts.
+ *
+ * Updated to be valid for shift counts from 0 to 63 inclusive.
+ * -- Gabriel
+ *
+ * R3/R4 has 64 bit value
+ * R5    has shift count
+ * result in R3/R4
+ *
+ *  ashrdi3: arithmetic right shift (sign propagation)  
+ *  lshrdi3: logical right shift
+ *  ashldi3: left shift
+ */
+_GLOBAL(__ashrdi3)
+        subfic  r6,r5,32
+        srw     r4,r4,r5        # LSW = count > 31 ? 0 : LSW >> count
+        addi    r7,r5,32        # could be xori, or addi with -32
+        slw     r6,r3,r6        # t1 = count > 31 ? 0 : MSW << (32-count)
+        rlwinm  r8,r7,0,32      # t3 = (count < 32) ? 32 : 0
+        sraw    r7,r3,r7        # t2 = MSW >> (count-32)
+        or      r4,r4,r6        # LSW |= t1
+        slw     r7,r7,r8        # t2 = (count < 32) ? 0 : t2
+        sraw    r3,r3,r5        # MSW = MSW >> count
+        or      r4,r4,r7        # LSW |= t2
+        blr
+
+_GLOBAL(__ashldi3)
+        subfic  r6,r5,32
+        slw     r3,r3,r5        # MSW = count > 31 ? 0 : MSW << count
+        addi    r7,r5,32        # could be xori, or addi with -32
+        srw     r6,r4,r6        # t1 = count > 31 ? 0 : LSW >> (32-count)
+        slw     r7,r4,r7        # t2 = count < 32 ? 0 : LSW << (count-32)
+        or      r3,r3,r6        # MSW |= t1
+        slw     r4,r4,r5        # LSW = LSW << count
+        or      r3,r3,r7        # MSW |= t2
+        blr
+
+_GLOBAL(__lshrdi3)
+        subfic  r6,r5,32
+        srw     r4,r4,r5        # LSW = count > 31 ? 0 : LSW >> count
+        addi    r7,r5,32        # could be xori, or addi with -32
+        slw     r6,r3,r6        # t1 = count > 31 ? 0 : MSW << (32-count)
+        srw     r7,r3,r7        # t2 = count < 32 ? 0 : MSW >> (count-32)
+        or      r4,r4,r6        # LSW |= t1
+        srw     r3,r3,r5        # MSW = MSW >> count
+        or      r4,r4,r7        # LSW |= t2
+        blr
+
+_GLOBAL(abs)
+        srawi   r4,r3,31
+        xor     r3,r3,r4
+        sub     r3,r3,r4
+        blr
+
+_GLOBAL(_get_SP)
+        mr      r3,r1           /* Close enough */
+        blr
+
+/*
+ * Create a kernel thread
+ *   kernel_thread(fn, arg, flags)
+ */
+_GLOBAL(kernel_thread)
+        stwu    r1,-16(r1)
+        stw     r30,8(r1)
+        stw     r31,12(r1)
+        mr      r30,r3          /* function */
+        mr      r31,r4          /* argument */
+        ori     r3,r5,CLONE_VM  /* flags */
+        oris    r3,r3,CLONE_UNTRACED>>16
+        li      r4,0            /* new sp (unused) */
+        li      r0,__NR_clone
+        sc
+        cmpwi   0,r3,0          /* parent or child? */
+        bne     1f              /* return if parent */
+        li      r0,0            /* make top-level stack frame */
+        stwu    r0,-16(r1)
+        mtlr    r30             /* fn addr in lr */
+        mr      r3,r31          /* load arg and call fn */
+        PPC440EP_ERR42
+        blrl
+        li      r0,__NR_exit    /* exit if function returns */
+        li      r3,0
+        sc
+1:      lwz     r30,8(r1)
+        lwz     r31,12(r1)
+        addi    r1,r1,16
+        blr
+
+_GLOBAL(execve)
+        li      r0,__NR_execve
+        sc
+        bnslr
+        neg     r3,r3
+        blr
+
+/*
+ * This routine is just here to keep GCC happy - sigh...
+ */
+_GLOBAL(__main)
+        blr
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
new file mode 100644
index 000000000000..b3e95ff0dba0
--- /dev/null
+++ b/arch/powerpc/kernel/misc_64.S
@@ -0,0 +1,880 @@
+/*
+ *  arch/powerpc/kernel/misc64.S
+ *
+ * This file contains miscellaneous low-level functions.
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
+ * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) 
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/sys.h>
+#include <asm/unistd.h>
+#include <asm/errno.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/cache.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+
+        .text
+
+/*
+ * Returns (address we are running at) - (address we were linked at)
+ * for use before the text and data are mapped to KERNELBASE.
+ */
+
+_GLOBAL(reloc_offset)
+        mflr    r0
+        bl      1f
+1:      mflr    r3
+        LOADADDR(r4,1b)
+        subf    r3,r4,r3
+        mtlr    r0
+        blr
+
+/*
+ * add_reloc_offset(x) returns x + reloc_offset().
+ */
+_GLOBAL(add_reloc_offset)
+        mflr    r0
+        bl      1f
+1:      mflr    r5
+        LOADADDR(r4,1b)
+        subf    r5,r4,r5
+        add     r3,r3,r5
+        mtlr    r0
+        blr
+
+_GLOBAL(get_msr)
+        mfmsr   r3
+        blr
+
+_GLOBAL(get_dar)
+        mfdar   r3
+        blr
+
+_GLOBAL(get_srr0)
+        mfsrr0  r3
+        blr
+
+_GLOBAL(get_srr1)
+        mfsrr1  r3
+        blr
+        
+_GLOBAL(get_sp)
+        mr      r3,r1
+        blr
+
+#ifdef CONFIG_IRQSTACKS
+_GLOBAL(call_do_softirq)
+        mflr    r0
+        std     r0,16(r1)
+        stdu    r1,THREAD_SIZE-112(r3)
+        mr      r1,r3
+        bl      .__do_softirq
+        ld      r1,0(r1)
+        ld      r0,16(r1)
+        mtlr    r0
+        blr
+
+_GLOBAL(call_handle_IRQ_event)
+        mflr    r0
+        std     r0,16(r1)
+        stdu    r1,THREAD_SIZE-112(r6)
+        mr      r1,r6
+        bl      .handle_IRQ_event
+        ld      r1,0(r1)
+        ld      r0,16(r1)
+        mtlr    r0
+        blr
+#endif /* CONFIG_IRQSTACKS */
+
+        /*
+ * To be called by C code which needs to do some operations with MMU
+ * disabled. Note that interrupts have to be disabled by the caller
+ * prior to calling us. The code called _MUST_ be in the RMO of course
+ * and part of the linear mapping as we don't attempt to translate the
+ * stack pointer at all. The function is called with the stack switched
+ * to this CPU emergency stack
+ *
+ * prototype is void *call_with_mmu_off(void *func, void *data);
+ *
+ * the called function is expected to be of the form
+ *
+ * void *called(void *data); 
+ */
+_GLOBAL(call_with_mmu_off)
+        mflr    r0                      /* get link, save it on stackframe */
+        std     r0,16(r1)
+        mr      r1,r5                   /* save old stack ptr */
+        ld      r1,PACAEMERGSP(r13)     /* get emerg. stack */
+        subi    r1,r1,STACK_FRAME_OVERHEAD
+        std     r0,16(r1)               /* save link on emerg. stack */
+        std     r5,0(r1)                /* save old stack ptr in backchain */
+        ld      r3,0(r3)                /* get to real function ptr (assume same TOC) */
+        bl      2f                      /* we need LR to return, continue at label 2 */
+
+        ld      r0,16(r1)               /* we return here from the call, get LR and */
+        ld      r1,0(r1)                /* .. old stack ptr */
+        mtspr   SPRN_SRR0,r0            /* and get back to virtual mode with these */
+        mfmsr   r4
+        ori     r4,r4,MSR_IR|MSR_DR
+        mtspr   SPRN_SRR1,r4
+        rfid
+
+2:      mtspr   SPRN_SRR0,r3            /* coming from above, enter real mode */
+        mr      r3,r4                   /* get parameter */
+        mfmsr   r0
+        ori     r0,r0,MSR_IR|MSR_DR
+        xori    r0,r0,MSR_IR|MSR_DR
+        mtspr   SPRN_SRR1,r0
+        rfid
+
+
+        .section        ".toc","aw"
+PPC64_CACHES:
+        .tc             ppc64_caches[TC],ppc64_caches
+        .section        ".text"
+
+/*
+ * Write any modified data cache blocks out to memory
+ * and invalidate the corresponding instruction cache blocks.
+ *
+ * flush_icache_range(unsigned long start, unsigned long stop)
+ *
+ *   flush all bytes from start through stop-1 inclusive
+ */
+
+_KPROBE(__flush_icache_range)
+
+/*
+ * Flush the data cache to memory 
+ * 
+ * Different systems have different cache line sizes
+ * and in some cases i-cache and d-cache line sizes differ from
+ * each other.
+ */
+        ld      r10,PPC64_CACHES@toc(r2)
+        lwz     r7,DCACHEL1LINESIZE(r10)/* Get cache line size */
+        addi    r5,r7,-1
+        andc    r6,r3,r5                /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5                /* ensure we get enough */
+        lwz     r9,DCACHEL1LOGLINESIZE(r10)     /* Get log-2 of cache line size */
+        srw.    r8,r8,r9                /* compute line count */
+        beqlr                           /* nothing to do? */
+        mtctr   r8
+1:      dcbst   0,r6
+        add     r6,r6,r7
+        bdnz    1b
+        sync
+
+/* Now invalidate the instruction cache */
+        
+        lwz     r7,ICACHEL1LINESIZE(r10)        /* Get Icache line size */
+        addi    r5,r7,-1
+        andc    r6,r3,r5                /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5
+        lwz     r9,ICACHEL1LOGLINESIZE(r10)     /* Get log-2 of Icache line size */
+        srw.    r8,r8,r9                /* compute line count */
+        beqlr                           /* nothing to do? */
+        mtctr   r8
+2:      icbi    0,r6
+        add     r6,r6,r7
+        bdnz    2b
+        isync
+        blr
+        .previous .text
+/*
+ * Like above, but only do the D-cache.
+ *
+ * flush_dcache_range(unsigned long start, unsigned long stop)
+ *
+ *    flush all bytes from start to stop-1 inclusive
+ */
+_GLOBAL(flush_dcache_range)
+
+/*
+ * Flush the data cache to memory 
+ * 
+ * Different systems have different cache line sizes
+ */
+        ld      r10,PPC64_CACHES@toc(r2)
+        lwz     r7,DCACHEL1LINESIZE(r10)        /* Get dcache line size */
+        addi    r5,r7,-1
+        andc    r6,r3,r5                /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5                /* ensure we get enough */
+        lwz     r9,DCACHEL1LOGLINESIZE(r10)     /* Get log-2 of dcache line size */
+        srw.    r8,r8,r9                /* compute line count */
+        beqlr                           /* nothing to do? */
+        mtctr   r8
+0:      dcbst   0,r6
+        add     r6,r6,r7
+        bdnz    0b
+        sync
+        blr
+
+/*
+ * Like above, but works on non-mapped physical addresses.
+ * Use only for non-LPAR setups ! It also assumes real mode
+ * is cacheable. Used for flushing out the DART before using
+ * it as uncacheable memory 
+ *
+ * flush_dcache_phys_range(unsigned long start, unsigned long stop)
+ *
+ *    flush all bytes from start to stop-1 inclusive
+ */
+_GLOBAL(flush_dcache_phys_range)
+        ld      r10,PPC64_CACHES@toc(r2)
+        lwz     r7,DCACHEL1LINESIZE(r10)        /* Get dcache line size */
+        addi    r5,r7,-1
+        andc    r6,r3,r5                /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5                /* ensure we get enough */
+        lwz     r9,DCACHEL1LOGLINESIZE(r10)     /* Get log-2 of dcache line size */
+        srw.    r8,r8,r9                /* compute line count */
+        beqlr                           /* nothing to do? */
+        mfmsr   r5                      /* Disable MMU Data Relocation */
+        ori     r0,r5,MSR_DR
+        xori    r0,r0,MSR_DR
+        sync
+        mtmsr   r0
+        sync
+        isync
+        mtctr   r8
+0:      dcbst   0,r6
+        add     r6,r6,r7
+        bdnz    0b
+        sync
+        isync
+        mtmsr   r5                      /* Re-enable MMU Data Relocation */
+        sync
+        isync
+        blr
+
+_GLOBAL(flush_inval_dcache_range)
+        ld      r10,PPC64_CACHES@toc(r2)
+        lwz     r7,DCACHEL1LINESIZE(r10)        /* Get dcache line size */
+        addi    r5,r7,-1
+        andc    r6,r3,r5                /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5                /* ensure we get enough */
+        lwz     r9,DCACHEL1LOGLINESIZE(r10)/* Get log-2 of dcache line size */
+        srw.    r8,r8,r9                /* compute line count */
+        beqlr                           /* nothing to do? */
+        sync
+        isync
+        mtctr   r8
+0:      dcbf    0,r6
+        add     r6,r6,r7
+        bdnz    0b
+        sync
+        isync
+        blr
+
+
+/*
+ * Flush a particular page from the data cache to RAM.
+ * Note: this is necessary because the instruction cache does *not*
+ * snoop from the data cache.
+ *
+ *      void __flush_dcache_icache(void *page)
+ */
+_GLOBAL(__flush_dcache_icache)
+/*
+ * Flush the data cache to memory 
+ * 
+ * Different systems have different cache line sizes
+ */
+
+/* Flush the dcache */
+        ld      r7,PPC64_CACHES@toc(r2)
+        clrrdi  r3,r3,PAGE_SHIFT                    /* Page align */
+        lwz     r4,DCACHEL1LINESPERPAGE(r7)     /* Get # dcache lines per page */
+        lwz     r5,DCACHEL1LINESIZE(r7)         /* Get dcache line size */
+        mr      r6,r3
+        mtctr   r4
+0:      dcbst   0,r6
+        add     r6,r6,r5
+        bdnz    0b
+        sync
+
+/* Now invalidate the icache */ 
+
+        lwz     r4,ICACHEL1LINESPERPAGE(r7)     /* Get # icache lines per page */
+        lwz     r5,ICACHEL1LINESIZE(r7)         /* Get icache line size */
+        mtctr   r4
+1:      icbi    0,r3
+        add     r3,r3,r5
+        bdnz    1b
+        isync
+        blr
+        
+/*
+ * I/O string operations
+ *
+ * insb(port, buf, len)
+ * outsb(port, buf, len)
+ * insw(port, buf, len)
+ * outsw(port, buf, len)
+ * insl(port, buf, len)
+ * outsl(port, buf, len)
+ * insw_ns(port, buf, len)
+ * outsw_ns(port, buf, len)
+ * insl_ns(port, buf, len)
+ * outsl_ns(port, buf, len)
+ *
+ * The *_ns versions don't do byte-swapping.
+ */
+_GLOBAL(_insb)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,1
+        blelr-
+00:     lbz     r5,0(r3)
+        eieio
+        stbu    r5,1(r4)
+        bdnz    00b
+        twi     0,r5,0
+        isync
+        blr
+
+_GLOBAL(_outsb)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,1
+        blelr-
+00:     lbzu    r5,1(r4)
+        stb     r5,0(r3)
+        bdnz    00b
+        sync
+        blr     
+
+_GLOBAL(_insw)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhbrx   r5,0,r3
+        eieio
+        sthu    r5,2(r4)
+        bdnz    00b
+        twi     0,r5,0
+        isync
+        blr
+
+_GLOBAL(_outsw)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhzu    r5,2(r4)
+        sthbrx  r5,0,r3 
+        bdnz    00b
+        sync
+        blr     
+
+_GLOBAL(_insl)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwbrx   r5,0,r3
+        eieio
+        stwu    r5,4(r4)
+        bdnz    00b
+        twi     0,r5,0
+        isync
+        blr
+
+_GLOBAL(_outsl)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwzu    r5,4(r4)
+        stwbrx  r5,0,r3
+        bdnz    00b
+        sync
+        blr     
+
+/* _GLOBAL(ide_insw) now in drivers/ide/ide-iops.c */
+_GLOBAL(_insw_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhz     r5,0(r3)
+        eieio
+        sthu    r5,2(r4)
+        bdnz    00b
+        twi     0,r5,0
+        isync
+        blr
+
+/* _GLOBAL(ide_outsw) now in drivers/ide/ide-iops.c */
+_GLOBAL(_outsw_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,2
+        blelr-
+00:     lhzu    r5,2(r4)
+        sth     r5,0(r3)
+        bdnz    00b
+        sync
+        blr     
+
+_GLOBAL(_insl_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwz     r5,0(r3)
+        eieio
+        stwu    r5,4(r4)
+        bdnz    00b
+        twi     0,r5,0
+        isync
+        blr
+
+_GLOBAL(_outsl_ns)
+        cmpwi   0,r5,0
+        mtctr   r5
+        subi    r4,r4,4
+        blelr-
+00:     lwzu    r5,4(r4)
+        stw     r5,0(r3)
+        bdnz    00b
+        sync
+        blr     
+
+/*
+ * identify_cpu and calls setup_cpu
+ * In:  r3 = base of the cpu_specs array
+ *      r4 = address of cur_cpu_spec
+ *      r5 = relocation offset
+ */
+_GLOBAL(identify_cpu)
+        mfpvr   r7
+1:
+        lwz     r8,CPU_SPEC_PVR_MASK(r3)
+        and     r8,r8,r7
+        lwz     r9,CPU_SPEC_PVR_VALUE(r3)
+        cmplw   0,r9,r8
+        beq     1f
+        addi    r3,r3,CPU_SPEC_ENTRY_SIZE
+        b       1b
+1:
+        sub     r0,r3,r5
+        std     r0,0(r4)
+        ld      r4,CPU_SPEC_SETUP(r3)
+        add     r4,r4,r5
+        ld      r4,0(r4)
+        add     r4,r4,r5
+        mtctr   r4
+        /* Calling convention for cpu setup is r3=offset, r4=cur_cpu_spec */
+        mr      r4,r3
+        mr      r3,r5
+        bctr
+
+/*
+ * do_cpu_ftr_fixups - goes through the list of CPU feature fixups
+ * and writes nop's over sections of code that don't apply for this cpu.
+ * r3 = data offset (not changed)
+ */
+_GLOBAL(do_cpu_ftr_fixups)
+        /* Get CPU 0 features */
+        LOADADDR(r6,cur_cpu_spec)
+        sub     r6,r6,r3
+        ld      r4,0(r6)
+        sub     r4,r4,r3
+        ld      r4,CPU_SPEC_FEATURES(r4)
+        /* Get the fixup table */
+        LOADADDR(r6,__start___ftr_fixup)
+        sub     r6,r6,r3
+        LOADADDR(r7,__stop___ftr_fixup)
+        sub     r7,r7,r3
+        /* Do the fixup */
+1:      cmpld   r6,r7
+        bgelr
+        addi    r6,r6,32
+        ld      r8,-32(r6)      /* mask */
+        and     r8,r8,r4
+        ld      r9,-24(r6)      /* value */
+        cmpld   r8,r9
+        beq     1b
+        ld      r8,-16(r6)      /* section begin */
+        ld      r9,-8(r6)       /* section end */
+        subf.   r9,r8,r9
+        beq     1b
+        /* write nops over the section of code */
+        /* todo: if large section, add a branch at the start of it */
+        srwi    r9,r9,2
+        mtctr   r9
+        sub     r8,r8,r3
+        lis     r0,0x60000000@h /* nop */
+3:      stw     r0,0(r8)
+        andi.   r10,r4,CPU_FTR_SPLIT_ID_CACHE@l
+        beq     2f
+        dcbst   0,r8            /* suboptimal, but simpler */
+        sync
+        icbi    0,r8
+2:      addi    r8,r8,4
+        bdnz    3b
+        sync                    /* additional sync needed on g4 */
+        isync
+        b       1b
+
+#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
+/*
+ * Do an IO access in real mode
+ */
+_GLOBAL(real_readb)
+        mfmsr   r7
+        ori     r0,r7,MSR_DR
+        xori    r0,r0,MSR_DR
+        sync
+        mtmsrd  r0
+        sync
+        isync
+        mfspr   r6,SPRN_HID4
+        rldicl  r5,r6,32,0
+        ori     r5,r5,0x100
+        rldicl  r5,r5,32,0
+        sync
+        mtspr   SPRN_HID4,r5
+        isync
+        slbia
+        isync
+        lbz     r3,0(r3)
+        sync
+        mtspr   SPRN_HID4,r6
+        isync
+        slbia
+        isync
+        mtmsrd  r7
+        sync
+        isync
+        blr
+
+        /*
+ * Do an IO access in real mode
+ */
+_GLOBAL(real_writeb)
+        mfmsr   r7
+        ori     r0,r7,MSR_DR
+        xori    r0,r0,MSR_DR
+        sync
+        mtmsrd  r0
+        sync
+        isync
+        mfspr   r6,SPRN_HID4
+        rldicl  r5,r6,32,0
+        ori     r5,r5,0x100
+        rldicl  r5,r5,32,0
+        sync
+        mtspr   SPRN_HID4,r5
+        isync
+        slbia
+        isync
+        stb     r3,0(r4)
+        sync
+        mtspr   SPRN_HID4,r6
+        isync
+        slbia
+        isync
+        mtmsrd  r7
+        sync
+        isync
+        blr
+#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
+
+/*
+ * Create a kernel thread
+ *   kernel_thread(fn, arg, flags)
+ */
+_GLOBAL(kernel_thread)
+        std     r29,-24(r1)
+        std     r30,-16(r1)
+        stdu    r1,-STACK_FRAME_OVERHEAD(r1)
+        mr      r29,r3
+        mr      r30,r4
+        ori     r3,r5,CLONE_VM  /* flags */
+        oris    r3,r3,(CLONE_UNTRACED>>16)
+        li      r4,0            /* new sp (unused) */
+        li      r0,__NR_clone
+        sc
+        cmpdi   0,r3,0          /* parent or child? */
+        bne     1f              /* return if parent */
+        li      r0,0
+        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
+        ld      r2,8(r29)
+        ld      r29,0(r29)
+        mtlr    r29              /* fn addr in lr */
+        mr      r3,r30          /* load arg and call fn */
+        blrl
+        li      r0,__NR_exit    /* exit after child exits */
+        li      r3,0
+        sc
+1:      addi    r1,r1,STACK_FRAME_OVERHEAD      
+        ld      r29,-24(r1)
+        ld      r30,-16(r1)
+        blr
+
+/*
+ * disable_kernel_fp()
+ * Disable the FPU.
+ */
+_GLOBAL(disable_kernel_fp)
+        mfmsr   r3
+        rldicl  r0,r3,(63-MSR_FP_LG),1
+        rldicl  r3,r0,(MSR_FP_LG+1),0
+        mtmsrd  r3                      /* disable use of fpu now */
+        isync
+        blr
+
+#ifdef CONFIG_ALTIVEC
+
+#if 0 /* this has no callers for now */
+/*
+ * disable_kernel_altivec()
+ * Disable the VMX.
+ */
+_GLOBAL(disable_kernel_altivec)
+        mfmsr   r3
+        rldicl  r0,r3,(63-MSR_VEC_LG),1
+        rldicl  r3,r0,(MSR_VEC_LG+1),0
+        mtmsrd  r3                      /* disable use of VMX now */
+        isync
+        blr
+#endif /* 0 */
+
+/*
+ * giveup_altivec(tsk)
+ * Disable VMX for the task given as the argument,
+ * and save the vector registers in its thread_struct.
+ * Enables the VMX for use in the kernel on return.
+ */
+_GLOBAL(giveup_altivec)
+        mfmsr   r5
+        oris    r5,r5,MSR_VEC@h
+        mtmsrd  r5                      /* enable use of VMX now */
+        isync
+        cmpdi   0,r3,0
+        beqlr-                          /* if no previous owner, done */
+        addi    r3,r3,THREAD            /* want THREAD of task */
+        ld      r5,PT_REGS(r3)
+        cmpdi   0,r5,0
+        SAVE_32VRS(0,r4,r3)
+        mfvscr  vr0
+        li      r4,THREAD_VSCR
+        stvx    vr0,r4,r3
+        beq     1f
+        ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+        lis     r3,MSR_VEC@h
+        andc    r4,r4,r3                /* disable FP for previous task */
+        std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
+1:
+#ifndef CONFIG_SMP
+        li      r5,0
+        ld      r4,last_task_used_altivec@got(r2)
+        std     r5,0(r4)
+#endif /* CONFIG_SMP */
+        blr
+
+#endif /* CONFIG_ALTIVEC */
+
+_GLOBAL(__setup_cpu_power3)
+        blr
+
+_GLOBAL(execve)
+        li      r0,__NR_execve
+        sc
+        bnslr
+        neg     r3,r3
+        blr
+
+/* kexec_wait(phys_cpu)
+ *
+ * wait for the flag to change, indicating this kernel is going away but
+ * the slave code for the next one is at addresses 0 to 100.
+ *
+ * This is used by all slaves.
+ *
+ * Physical (hardware) cpu id should be in r3.
+ */
+_GLOBAL(kexec_wait)
+        bl      1f
+1:      mflr    r5
+        addi    r5,r5,kexec_flag-1b
+
+99:     HMT_LOW
+#ifdef CONFIG_KEXEC             /* use no memory without kexec */
+        lwz     r4,0(r5)
+        cmpwi   0,r4,0
+        bnea    0x60
+#endif
+        b       99b
+
+/* this can be in text because we won't change it until we are
+ * running in real anyways
+ */
+kexec_flag:
+        .long   0
+
+
+#ifdef CONFIG_KEXEC
+
+/* kexec_smp_wait(void)
+ *
+ * call with interrupts off
+ * note: this is a terminal routine, it does not save lr
+ *
+ * get phys id from paca
+ * set paca id to -1 to say we got here
+ * switch to real mode
+ * join other cpus in kexec_wait(phys_id)
+ */
+_GLOBAL(kexec_smp_wait)
+        lhz     r3,PACAHWCPUID(r13)
+        li      r4,-1
+        sth     r4,PACAHWCPUID(r13)     /* let others know we left */
+        bl      real_mode
+        b       .kexec_wait
+
+/*
+ * switch to real mode (turn mmu off)
+ * we use the early kernel trick that the hardware ignores bits
+ * 0 and 1 (big endian) of the effective address in real mode
+ *
+ * don't overwrite r3 here, it is live for kexec_wait above.
+ */
+real_mode:      /* assume normal blr return */
+1:      li      r9,MSR_RI
+        li      r10,MSR_DR|MSR_IR
+        mflr    r11             /* return address to SRR0 */
+        mfmsr   r12
+        andc    r9,r12,r9
+        andc    r10,r12,r10
+
+        mtmsrd  r9,1
+        mtspr   SPRN_SRR1,r10
+        mtspr   SPRN_SRR0,r11
+        rfid
+
+
+/*
+ * kexec_sequence(newstack, start, image, control, clear_all())
+ *
+ * does the grungy work with stack switching and real mode switches
+ * also does simple calls to other code
+ */
+
+_GLOBAL(kexec_sequence)
+        mflr    r0
+        std     r0,16(r1)
+
+        /* switch stacks to newstack -- &kexec_stack.stack */
+        stdu    r1,THREAD_SIZE-112(r3)
+        mr      r1,r3
+
+        li      r0,0
+        std     r0,16(r1)
+
+        /* save regs for local vars on new stack.
+         * yes, we won't go back, but ...
+         */
+        std     r31,-8(r1)
+        std     r30,-16(r1)
+        std     r29,-24(r1)
+        std     r28,-32(r1)
+        std     r27,-40(r1)
+        std     r26,-48(r1)
+        std     r25,-56(r1)
+
+        stdu    r1,-112-64(r1)
+
+        /* save args into preserved regs */
+        mr      r31,r3                  /* newstack (both) */
+        mr      r30,r4                  /* start (real) */
+        mr      r29,r5                  /* image (virt) */
+        mr      r28,r6                  /* control, unused */
+        mr      r27,r7                  /* clear_all() fn desc */
+        mr      r26,r8                  /* spare */
+        lhz     r25,PACAHWCPUID(r13)    /* get our phys cpu from paca */
+
+        /* disable interrupts, we are overwriting kernel data next */
+        mfmsr   r3
+        rlwinm  r3,r3,0,17,15
+        mtmsrd  r3,1
+
+        /* copy dest pages, flush whole dest image */
+        mr      r3,r29
+        bl      .kexec_copy_flush       /* (image) */
+
+        /* turn off mmu */
+        bl      real_mode
+
+        /* clear out hardware hash page table and tlb */
+        ld      r5,0(r27)               /* deref function descriptor */
+        mtctr   r5
+        bctrl                           /* ppc_md.hash_clear_all(void); */
+
+/*
+ *   kexec image calling is:
+ *      the first 0x100 bytes of the entry point are copied to 0
+ *
+ *      all slaves branch to slave = 0x60 (absolute)
+ *              slave(phys_cpu_id);
+ *
+ *      master goes to start = entry point
+ *              start(phys_cpu_id, start, 0);
+ *
+ *
+ *   a wrapper is needed to call existing kernels, here is an approximate
+ *   description of one method:
+ *
+ * v2: (2.6.10)
+ *   start will be near the boot_block (maybe 0x100 bytes before it?)
+ *   it will have a 0x60, which will b to boot_block, where it will wait
+ *   and 0 will store phys into struct boot-block and load r3 from there,
+ *   copy kernel 0-0x100 and tell slaves to back down to 0x60 again
+ *
+ * v1: (2.6.9)
+ *    boot block will have all cpus scanning device tree to see if they
+ *    are the boot cpu ?????
+ *    other device tree differences (prop sizes, va vs pa, etc)...
+ */
+
+        /* copy  0x100 bytes starting at start to 0 */
+        li      r3,0
+        mr      r4,r30
+        li      r5,0x100
+        li      r6,0
+        bl      .copy_and_flush /* (dest, src, copy limit, start offset) */
+1:      /* assume normal blr return */
+
+        /* release other cpus to the new kernel secondary start at 0x60 */
+        mflr    r5
+        li      r6,1
+        stw     r6,kexec_flag-1b(5)
+        mr      r3,r25  # my phys cpu
+        mr      r4,r30  # start, aka phys mem offset
+        mtlr    4
+        li      r5,0
+        blr     /* image->start(physid, image->start, 0); */
+#endif /* CONFIG_KEXEC */
diff --git a/arch/ppc64/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index 9f200f0f2ad5..7065e40e2f42 100644
--- a/arch/ppc64/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -4,6 +4,8 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+
 #include <asm/errno.h>
 #include <asm/of_device.h>
 
@@ -184,6 +186,7 @@ void of_release_dev(struct device *dev)
         struct of_device *ofdev;
 
         ofdev = to_of_device(dev);
+        of_node_put(ofdev->node);
         kfree(ofdev);
 }
 
@@ -244,7 +247,7 @@ struct of_device* of_platform_device_create(struct device_node *np,
                 return NULL;
         memset(dev, 0, sizeof(*dev));
 
-        dev->node = np;
+        dev->node = of_node_get(np);
         dev->dma_mask = 0xffffffffUL;
         dev->dev.dma_mask = &dev->dma_mask;
         dev->dev.parent = parent;
@@ -261,7 +264,6 @@ struct of_device* of_platform_device_create(struct device_node *np,
         return dev;
 }
 
-
 EXPORT_SYMBOL(of_match_device);
 EXPORT_SYMBOL(of_platform_bus_type);
 EXPORT_SYMBOL(of_register_driver);
diff --git a/arch/ppc64/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
index 63d9481c3ec2..2d333cc84082 100644
--- a/arch/ppc64/kernel/pmc.c
+++ b/arch/powerpc/kernel/pmc.c
@@ -1,7 +1,10 @@
 /*
- *  linux/arch/ppc64/kernel/pmc.c
+ *  arch/powerpc/kernel/pmc.c
  *
  *  Copyright (C) 2004 David Gibson, IBM Corporation.
+ *  Includes code formerly from arch/ppc/kernel/perfmon.c:
+ *    Author: Andy Fleming
+ *    Copyright (c) 2004 Freescale Semiconductor, Inc
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License
@@ -17,6 +20,20 @@
 #include <asm/processor.h>
 #include <asm/pmc.h>
 
+#if defined(CONFIG_FSL_BOOKE) && !defined(CONFIG_E200)
+static void dummy_perf(struct pt_regs *regs)
+{
+        unsigned int pmgc0 = mfpmr(PMRN_PMGC0);
+
+        pmgc0 &= ~PMGC0_PMIE;
+        mtpmr(PMRN_PMGC0, pmgc0);
+}
+#elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
+
+#ifndef MMCR0_PMAO
+#define MMCR0_PMAO      0
+#endif
+
 /* Ensure exceptions are disabled */
 static void dummy_perf(struct pt_regs *regs)
 {
@@ -25,6 +42,11 @@ static void dummy_perf(struct pt_regs *regs)
         mmcr0 &= ~(MMCR0_PMXE|MMCR0_PMAO);
         mtspr(SPRN_MMCR0, mmcr0);
 }
+#else
+static void dummy_perf(struct pt_regs *regs)
+{
+}
+#endif
 
 static DEFINE_SPINLOCK(pmc_owner_lock);
 static void *pmc_owner_caller; /* mostly for debugging */
@@ -66,11 +88,12 @@ void release_pmc_hardware(void)
 }
 EXPORT_SYMBOL_GPL(release_pmc_hardware);
 
+#ifdef CONFIG_PPC64
 void power4_enable_pmcs(void)
 {
         unsigned long hid0;
 
-        hid0 = mfspr(HID0);
+        hid0 = mfspr(SPRN_HID0);
         hid0 |= 1UL << (63 - 20);
 
         /* POWER4 requires the following sequence */
@@ -83,6 +106,7 @@ void power4_enable_pmcs(void)
                 "mfspr     %0, %1\n"
                 "mfspr     %0, %1\n"
                 "mfspr     %0, %1\n"
-                "isync" : "=&r" (hid0) : "i" (HID0), "0" (hid0):
+                "isync" : "=&r" (hid0) : "i" (SPRN_HID0), "0" (hid0):
                 "memory");
 }
+#endif /* CONFIG_PPC64 */
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
new file mode 100644
index 000000000000..8bc540337ba0
--- /dev/null
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -0,0 +1,273 @@
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/threads.h>
+#include <linux/smp.h>
+#include <linux/sched.h>
+#include <linux/elfcore.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/tty.h>
+#include <linux/vt_kern.h>
+#include <linux/nvram.h>
+#include <linux/console.h>
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/bitops.h>
+
+#include <asm/page.h>
+#include <asm/semaphore.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/ide.h>
+#include <asm/atomic.h>
+#include <asm/checksum.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <linux/adb.h>
+#include <linux/cuda.h>
+#include <linux/pmu.h>
+#include <asm/prom.h>
+#include <asm/system.h>
+#include <asm/pci-bridge.h>
+#include <asm/irq.h>
+#include <asm/pmac_feature.h>
+#include <asm/dma.h>
+#include <asm/machdep.h>
+#include <asm/hw_irq.h>
+#include <asm/nvram.h>
+#include <asm/mmu_context.h>
+#include <asm/backlight.h>
+#include <asm/time.h>
+#include <asm/cputable.h>
+#include <asm/btext.h>
+#include <asm/div64.h>
+
+#ifdef  CONFIG_8xx
+#include <asm/commproc.h>
+#endif
+
+#ifdef CONFIG_PPC32
+extern void transfer_to_handler(void);
+extern void do_IRQ(struct pt_regs *regs);
+extern void machine_check_exception(struct pt_regs *regs);
+extern void alignment_exception(struct pt_regs *regs);
+extern void program_check_exception(struct pt_regs *regs);
+extern void single_step_exception(struct pt_regs *regs);
+extern int do_signal(sigset_t *, struct pt_regs *);
+extern int pmac_newworld;
+extern int sys_sigreturn(struct pt_regs *regs);
+
+EXPORT_SYMBOL(clear_pages);
+EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
+EXPORT_SYMBOL(DMA_MODE_READ);
+EXPORT_SYMBOL(DMA_MODE_WRITE);
+EXPORT_SYMBOL(__div64_32);
+
+EXPORT_SYMBOL(do_signal);
+EXPORT_SYMBOL(transfer_to_handler);
+EXPORT_SYMBOL(do_IRQ);
+EXPORT_SYMBOL(machine_check_exception);
+EXPORT_SYMBOL(alignment_exception);
+EXPORT_SYMBOL(program_check_exception);
+EXPORT_SYMBOL(single_step_exception);
+EXPORT_SYMBOL(sys_sigreturn);
+#endif
+
+#if defined(CONFIG_PPC_PREP)
+EXPORT_SYMBOL(_prep_type);
+EXPORT_SYMBOL(ucSystemType);
+#endif
+
+#if !defined(__INLINE_BITOPS)
+EXPORT_SYMBOL(set_bit);
+EXPORT_SYMBOL(clear_bit);
+EXPORT_SYMBOL(change_bit);
+EXPORT_SYMBOL(test_and_set_bit);
+EXPORT_SYMBOL(test_and_clear_bit);
+EXPORT_SYMBOL(test_and_change_bit);
+#endif /* __INLINE_BITOPS */
+
+EXPORT_SYMBOL(strcpy);
+EXPORT_SYMBOL(strncpy);
+EXPORT_SYMBOL(strcat);
+EXPORT_SYMBOL(strncat);
+EXPORT_SYMBOL(strchr);
+EXPORT_SYMBOL(strrchr);
+EXPORT_SYMBOL(strpbrk);
+EXPORT_SYMBOL(strstr);
+EXPORT_SYMBOL(strlen);
+EXPORT_SYMBOL(strnlen);
+EXPORT_SYMBOL(strcmp);
+EXPORT_SYMBOL(strncmp);
+EXPORT_SYMBOL(strcasecmp);
+
+EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(csum_partial_copy_generic);
+EXPORT_SYMBOL(ip_fast_csum);
+EXPORT_SYMBOL(csum_tcpudp_magic);
+
+EXPORT_SYMBOL(__copy_tofrom_user);
+EXPORT_SYMBOL(__clear_user);
+EXPORT_SYMBOL(__strncpy_from_user);
+EXPORT_SYMBOL(__strnlen_user);
+
+EXPORT_SYMBOL(_insb);
+EXPORT_SYMBOL(_outsb);
+EXPORT_SYMBOL(_insw);
+EXPORT_SYMBOL(_outsw);
+EXPORT_SYMBOL(_insl);
+EXPORT_SYMBOL(_outsl);
+EXPORT_SYMBOL(_insw_ns);
+EXPORT_SYMBOL(_outsw_ns);
+EXPORT_SYMBOL(_insl_ns);
+EXPORT_SYMBOL(_outsl_ns);
+EXPORT_SYMBOL(ioremap);
+#ifdef CONFIG_44x
+EXPORT_SYMBOL(ioremap64);
+#endif
+EXPORT_SYMBOL(__ioremap);
+EXPORT_SYMBOL(iounmap);
+#ifdef CONFIG_PPC32
+EXPORT_SYMBOL(ioremap_bot);     /* aka VMALLOC_END */
+#endif
+
+#if defined(CONFIG_PPC32) && (defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE))
+EXPORT_SYMBOL(ppc_ide_md);
+#endif
+
+#if defined(CONFIG_PCI) && defined(CONFIG_PPC32)
+EXPORT_SYMBOL(isa_io_base);
+EXPORT_SYMBOL(isa_mem_base);
+EXPORT_SYMBOL(pci_dram_offset);
+EXPORT_SYMBOL(pci_alloc_consistent);
+EXPORT_SYMBOL(pci_free_consistent);
+EXPORT_SYMBOL(pci_bus_io_base);
+EXPORT_SYMBOL(pci_bus_io_base_phys);
+EXPORT_SYMBOL(pci_bus_mem_base_phys);
+EXPORT_SYMBOL(pci_bus_to_hose);
+EXPORT_SYMBOL(pci_resource_to_bus);
+EXPORT_SYMBOL(pci_phys_to_bus);
+EXPORT_SYMBOL(pci_bus_to_phys);
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+EXPORT_SYMBOL(flush_dcache_all);
+#endif
+
+EXPORT_SYMBOL(start_thread);
+EXPORT_SYMBOL(kernel_thread);
+
+EXPORT_SYMBOL(giveup_fpu);
+#ifdef CONFIG_ALTIVEC
+EXPORT_SYMBOL(giveup_altivec);
+#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+EXPORT_SYMBOL(giveup_spe);
+#endif /* CONFIG_SPE */
+
+#ifdef CONFIG_PPC64
+EXPORT_SYMBOL(__flush_icache_range);
+#else
+EXPORT_SYMBOL(flush_instruction_cache);
+EXPORT_SYMBOL(flush_icache_range);
+EXPORT_SYMBOL(flush_tlb_kernel_range);
+EXPORT_SYMBOL(flush_tlb_page);
+EXPORT_SYMBOL(_tlbie);
+#endif
+EXPORT_SYMBOL(flush_dcache_range);
+
+#ifdef CONFIG_SMP
+EXPORT_SYMBOL(smp_call_function);
+#ifdef CONFIG_PPC32
+EXPORT_SYMBOL(smp_hw_index);
+#endif
+#endif
+
+#ifdef CONFIG_ADB
+EXPORT_SYMBOL(adb_request);
+EXPORT_SYMBOL(adb_register);
+EXPORT_SYMBOL(adb_unregister);
+EXPORT_SYMBOL(adb_poll);
+EXPORT_SYMBOL(adb_try_handler_change);
+#endif /* CONFIG_ADB */
+#ifdef CONFIG_ADB_CUDA
+EXPORT_SYMBOL(cuda_request);
+EXPORT_SYMBOL(cuda_poll);
+#endif /* CONFIG_ADB_CUDA */
+#if defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_PPC32)
+EXPORT_SYMBOL(_machine);
+#endif
+#ifdef CONFIG_PPC_PMAC
+EXPORT_SYMBOL(sys_ctrler);
+#endif
+#ifdef CONFIG_VT
+EXPORT_SYMBOL(kd_mksound);
+#endif
+EXPORT_SYMBOL(to_tm);
+
+#ifdef CONFIG_PPC32
+long long __ashrdi3(long long, int);
+long long __ashldi3(long long, int);
+long long __lshrdi3(long long, int);
+EXPORT_SYMBOL(__ashrdi3);
+EXPORT_SYMBOL(__ashldi3);
+EXPORT_SYMBOL(__lshrdi3);
+#endif
+
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(memmove);
+EXPORT_SYMBOL(memscan);
+EXPORT_SYMBOL(memcmp);
+EXPORT_SYMBOL(memchr);
+
+#if defined(CONFIG_FB_VGA16_MODULE)
+EXPORT_SYMBOL(screen_info);
+#endif
+
+#ifdef CONFIG_PPC32
+EXPORT_SYMBOL(__delay);
+EXPORT_SYMBOL(timer_interrupt);
+EXPORT_SYMBOL(irq_desc);
+EXPORT_SYMBOL(tb_ticks_per_jiffy);
+EXPORT_SYMBOL(console_drivers);
+EXPORT_SYMBOL(cacheable_memcpy);
+#endif
+
+EXPORT_SYMBOL(__up);
+EXPORT_SYMBOL(__down);
+EXPORT_SYMBOL(__down_interruptible);
+
+#ifdef  CONFIG_8xx
+EXPORT_SYMBOL(cpm_install_handler);
+EXPORT_SYMBOL(cpm_free_handler);
+#endif /* CONFIG_8xx */
+#if defined(CONFIG_8xx) || defined(CONFIG_40x) || defined(CONFIG_85xx) ||\
+        defined(CONFIG_83xx)
+EXPORT_SYMBOL(__res);
+#endif
+
+#ifdef CONFIG_PPC32
+EXPORT_SYMBOL(next_mmu_context);
+EXPORT_SYMBOL(set_context);
+#endif
+
+#ifdef CONFIG_PPC_STD_MMU_32
+extern long mol_trampoline;
+EXPORT_SYMBOL(mol_trampoline); /* For MOL */
+EXPORT_SYMBOL(flush_hash_pages); /* For MOL */
+EXPORT_SYMBOL_GPL(__handle_mm_fault); /* For MOL */
+#ifdef CONFIG_SMP
+extern int mmu_hash_lock;
+EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */
+#endif /* CONFIG_SMP */
+extern long *intercept_table;
+EXPORT_SYMBOL(intercept_table);
+#endif /* CONFIG_PPC_STD_MMU_32 */
+#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
+EXPORT_SYMBOL(__mtdcr);
+EXPORT_SYMBOL(__mfdcr);
+#endif
diff --git a/arch/ppc64/kernel/process.c b/arch/powerpc/kernel/process.c
index 887005358eb1..8f85dabe4df3 100644
--- a/arch/ppc64/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1,5 +1,5 @@
 /*
- *  linux/arch/ppc64/kernel/process.c
+ *  arch/ppc/kernel/process.c
  *
  *  Derived from "arch/i386/kernel/process.c"
  *    Copyright (C) 1995  Linus Torvalds
@@ -7,7 +7,7 @@
  *  Updated and modified by Cort Dougan (cort@cs.nmt.edu) and
  *  Paul Mackerras (paulus@cs.anu.edu.au)
  *
- *  PowerPC version 
+ *  PowerPC version
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
  *
  *  This program is free software; you can redistribute it and/or
@@ -17,7 +17,6 @@
  */
 
 #include <linux/config.h>
-#include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -26,15 +25,17 @@
 #include <linux/smp_lock.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
+#include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/elf.h>
 #include <linux/init.h>
-#include <linux/init_task.h>
 #include <linux/prctl.h>
-#include <linux/ptrace.h>
+#include <linux/init_task.h>
+#include <linux/module.h>
 #include <linux/kallsyms.h>
-#include <linux/interrupt.h>
+#include <linux/mqueue.h>
+#include <linux/hardirq.h>
 #include <linux/utsname.h>
 #include <linux/kprobes.h>
 
@@ -44,21 +45,19 @@
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
-#include <asm/mmu_context.h>
 #include <asm/prom.h>
-#include <asm/ppcdebug.h>
-#include <asm/machdep.h>
-#include <asm/iSeries/HvCallHpt.h>
-#include <asm/cputable.h>
+#ifdef CONFIG_PPC64
 #include <asm/firmware.h>
-#include <asm/sections.h>
-#include <asm/tlbflush.h>
-#include <asm/time.h>
 #include <asm/plpar_wrappers.h>
+#include <asm/time.h>
+#endif
+
+extern unsigned long _get_SP(void);
 
 #ifndef CONFIG_SMP
 struct task_struct *last_task_used_math = NULL;
 struct task_struct *last_task_used_altivec = NULL;
+struct task_struct *last_task_used_spe = NULL;
 #endif
 
 /*
@@ -121,7 +120,6 @@ int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
 }
 
 #ifdef CONFIG_ALTIVEC
-
 void enable_kernel_altivec(void)
 {
         WARN_ON(preemptible());
@@ -130,7 +128,7 @@ void enable_kernel_altivec(void)
         if (current->thread.regs && (current->thread.regs->msr & MSR_VEC))
                 giveup_altivec(current);
         else
-                giveup_altivec(NULL);   /* just enables FP for kernel */
+                giveup_altivec(NULL);   /* just enable AltiVec for kernel - force */
 #else
         giveup_altivec(last_task_used_altivec);
 #endif /* CONFIG_SMP */
@@ -161,9 +159,48 @@ int dump_task_altivec(struct pt_regs *regs, elf_vrregset_t *vrregs)
         memcpy(vrregs, &current->thread.vr[0], sizeof(*vrregs));
         return 1;
 }
-
 #endif /* CONFIG_ALTIVEC */
 
+#ifdef CONFIG_SPE
+
+void enable_kernel_spe(void)
+{
+        WARN_ON(preemptible());
+
+#ifdef CONFIG_SMP
+        if (current->thread.regs && (current->thread.regs->msr & MSR_SPE))
+                giveup_spe(current);
+        else
+                giveup_spe(NULL);       /* just enable SPE for kernel - force */
+#else
+        giveup_spe(last_task_used_spe);
+#endif /* __SMP __ */
+}
+EXPORT_SYMBOL(enable_kernel_spe);
+
+void flush_spe_to_thread(struct task_struct *tsk)
+{
+        if (tsk->thread.regs) {
+                preempt_disable();
+                if (tsk->thread.regs->msr & MSR_SPE) {
+#ifdef CONFIG_SMP
+                        BUG_ON(tsk != current);
+#endif
+                        giveup_spe(current);
+                }
+                preempt_enable();
+        }
+}
+
+int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
+{
+        flush_spe_to_thread(current);
+        /* We copy u32 evr[32] + u64 acc + u32 spefscr -> 35 */
+        memcpy(evrregs, &current->thread.evr[0], sizeof(u32) * 35);
+        return 1;
+}
+#endif /* CONFIG_SPE */
+
 static void set_dabr_spr(unsigned long val)
 {
         mtspr(SPRN_DABR, val);
@@ -173,24 +210,27 @@ int set_dabr(unsigned long dabr)
 {
         int ret = 0;
 
+#ifdef CONFIG_PPC64
         if (firmware_has_feature(FW_FEATURE_XDABR)) {
                 /* We want to catch accesses from kernel and userspace */
                 unsigned long flags = H_DABRX_KERNEL|H_DABRX_USER;
                 ret = plpar_set_xdabr(dabr, flags);
         } else if (firmware_has_feature(FW_FEATURE_DABR)) {
                 ret = plpar_set_dabr(dabr);
-        } else {
+        } else
+#endif
                 set_dabr_spr(dabr);
-        }
 
         return ret;
 }
 
+#ifdef CONFIG_PPC64
 DEFINE_PER_CPU(struct cpu_usage, cpu_usage_array);
 static DEFINE_PER_CPU(unsigned long, current_dabr);
+#endif
 
 struct task_struct *__switch_to(struct task_struct *prev,
-                                struct task_struct *new)
+        struct task_struct *new)
 {
         struct thread_struct *new_thread, *old_thread;
         unsigned long flags;
@@ -200,7 +240,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
         /* avoid complexity of lazy save/restore of fpu
          * by just saving it every time we switch out if
          * this task used the fpu during the last quantum.
-         * 
+         *
          * If it tries to use the fpu again, it'll trap and
          * reload its fp regs.  So we don't have to do a restore
          * every switch, just a save.
@@ -209,31 +249,65 @@ struct task_struct *__switch_to(struct task_struct *prev,
         if (prev->thread.regs && (prev->thread.regs->msr & MSR_FP))
                 giveup_fpu(prev);
 #ifdef CONFIG_ALTIVEC
+        /*
+         * If the previous thread used altivec in the last quantum
+         * (thus changing altivec regs) then save them.
+         * We used to check the VRSAVE register but not all apps
+         * set it, so we don't rely on it now (and in fact we need
+         * to save & restore VSCR even if VRSAVE == 0).  -- paulus
+         *
+         * On SMP we always save/restore altivec regs just to avoid the
+         * complexity of changing processors.
+         *  -- Cort
+         */
         if (prev->thread.regs && (prev->thread.regs->msr & MSR_VEC))
                 giveup_altivec(prev);
 #endif /* CONFIG_ALTIVEC */
-#endif /* CONFIG_SMP */
+#ifdef CONFIG_SPE
+        /*
+         * If the previous thread used spe in the last quantum
+         * (thus changing spe regs) then save them.
+         *
+         * On SMP we always save/restore spe regs just to avoid the
+         * complexity of changing processors.
+         */
+        if ((prev->thread.regs && (prev->thread.regs->msr & MSR_SPE)))
+                giveup_spe(prev);
+#endif /* CONFIG_SPE */
 
-#if defined(CONFIG_ALTIVEC) && !defined(CONFIG_SMP)
+#else  /* CONFIG_SMP */
+#ifdef CONFIG_ALTIVEC
         /* Avoid the trap.  On smp this this never happens since
          * we don't set last_task_used_altivec -- Cort
          */
         if (new->thread.regs && last_task_used_altivec == new)
                 new->thread.regs->msr |= MSR_VEC;
 #endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+        /* Avoid the trap.  On smp this this never happens since
+         * we don't set last_task_used_spe
+         */
+        if (new->thread.regs && last_task_used_spe == new)
+                new->thread.regs->msr |= MSR_SPE;
+#endif /* CONFIG_SPE */
 
+#endif /* CONFIG_SMP */
+
+#ifdef CONFIG_PPC64     /* for now */
         if (unlikely(__get_cpu_var(current_dabr) != new->thread.dabr)) {
                 set_dabr(new->thread.dabr);
                 __get_cpu_var(current_dabr) = new->thread.dabr;
         }
 
         flush_tlb_pending();
+#endif
 
         new_thread = &new->thread;
         old_thread = &current->thread;
 
-        /* Collect purr utilization data per process and per processor
-         * wise purr is nothing but processor time base
+#ifdef CONFIG_PPC64
+        /*
+         * Collect processor utilization data per process
          */
         if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
                 struct cpu_usage *cu = &__get_cpu_var(cpu_usage_array);
@@ -243,6 +317,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
                 old_thread->accum_tb += (current_tb - start_tb);
                 new_thread->start_tb = current_tb;
         }
+#endif
 
         local_irq_save(flags);
         last = _switch(old_thread, new_thread);
@@ -254,6 +329,13 @@ struct task_struct *__switch_to(struct task_struct *prev,
 
 static int instructions_to_print = 16;
 
+#ifdef CONFIG_PPC64
+#define BAD_PC(pc)      ((REGION_ID(pc) != KERNEL_REGION_ID) && \
+                         (REGION_ID(pc) != VMALLOC_REGION_ID))
+#else
+#define BAD_PC(pc)      ((pc) < KERNELBASE)
+#endif
+
 static void show_instructions(struct pt_regs *regs)
 {
         int i;
@@ -268,9 +350,7 @@ static void show_instructions(struct pt_regs *regs)
                 if (!(i % 8))
                         printk("\n");
 
-                if (((REGION_ID(pc) != KERNEL_REGION_ID) &&
-                     (REGION_ID(pc) != VMALLOC_REGION_ID)) ||
-                     __get_user(instr, (unsigned int *)pc)) {
+                if (BAD_PC(pc) || __get_user(instr, (unsigned int *)pc)) {
                         printk("XXXXXXXX ");
                 } else {
                         if (regs->nip == pc)
@@ -285,50 +365,82 @@ static void show_instructions(struct pt_regs *regs)
         printk("\n");
 }
 
+static struct regbit {
+        unsigned long bit;
+        const char *name;
+} msr_bits[] = {
+        {MSR_EE,        "EE"},
+        {MSR_PR,        "PR"},
+        {MSR_FP,        "FP"},
+        {MSR_ME,        "ME"},
+        {MSR_IR,        "IR"},
+        {MSR_DR,        "DR"},
+        {0,             NULL}
+};
+
+static void printbits(unsigned long val, struct regbit *bits)
+{
+        const char *sep = "";
+
+        printk("<");
+        for (; bits->bit; ++bits)
+                if (val & bits->bit) {
+                        printk("%s%s", sep, bits->name);
+                        sep = ",";
+                }
+        printk(">");
+}
+
+#ifdef CONFIG_PPC64
+#define REG             "%016lX"
+#define REGS_PER_LINE   4
+#define LAST_VOLATILE   13
+#else
+#define REG             "%08lX"
+#define REGS_PER_LINE   8
+#define LAST_VOLATILE   12
+#endif
+
 void show_regs(struct pt_regs * regs)
 {
-        int i;
-        unsigned long trap;
+        int i, trap;
 
-        printk("NIP: %016lX XER: %08X LR: %016lX CTR: %016lX\n",
-               regs->nip, (unsigned int)regs->xer, regs->link, regs->ctr);
+        printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
+               regs->nip, regs->link, regs->ctr);
         printk("REGS: %p TRAP: %04lx   %s  (%s)\n",
                regs, regs->trap, print_tainted(), system_utsname.release);
-        printk("MSR: %016lx EE: %01x PR: %01x FP: %01x ME: %01x "
-               "IR/DR: %01x%01x CR: %08X\n",
-               regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
-               regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0,
-               regs->msr&MSR_IR ? 1 : 0,
-               regs->msr&MSR_DR ? 1 : 0,
-               (unsigned int)regs->ccr);
+        printk("MSR: "REG" ", regs->msr);
+        printbits(regs->msr, msr_bits);
+        printk("  CR: %08lX  XER: %08lX\n", regs->ccr, regs->xer);
         trap = TRAP(regs);
-        printk("DAR: %016lx DSISR: %016lx\n", regs->dar, regs->dsisr);
-        printk("TASK: %p[%d] '%s' THREAD: %p",
+        if (trap == 0x300 || trap == 0x600)
+                printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr);
+        printk("TASK = %p[%d] '%s' THREAD: %p",
                current, current->pid, current->comm, current->thread_info);
 
 #ifdef CONFIG_SMP
         printk(" CPU: %d", smp_processor_id());
 #endif /* CONFIG_SMP */
 
-        for (i = 0; i < 32; i++) {
-                if ((i % 4) == 0) {
+        for (i = 0;  i < 32;  i++) {
+                if ((i % REGS_PER_LINE) == 0)
                         printk("\n" KERN_INFO "GPR%02d: ", i);
-                }
-
-                printk("%016lX ", regs->gpr[i]);
-                if (i == 13 && !FULL_REGS(regs))
+                printk(REG " ", regs->gpr[i]);
+                if (i == LAST_VOLATILE && !FULL_REGS(regs))
                         break;
         }
         printk("\n");
+#ifdef CONFIG_KALLSYMS
         /*
          * Lookup NIP late so we have the best change of getting the
          * above info out without failing
          */
-        printk("NIP [%016lx] ", regs->nip);
+        printk("NIP ["REG"] ", regs->nip);
         print_symbol("%s\n", regs->nip);
-        printk("LR [%016lx] ", regs->link);
+        printk("LR ["REG"] ", regs->link);
         print_symbol("%s\n", regs->link);
-        show_stack(current, (unsigned long *)regs->gpr[1]);
+#endif
+        show_stack(current, (unsigned long *) regs->gpr[1]);
         if (!user_mode(regs))
                 show_instructions(regs);
 }
@@ -344,16 +456,22 @@ void exit_thread(void)
         if (last_task_used_altivec == current)
                 last_task_used_altivec = NULL;
 #endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+        if (last_task_used_spe == current)
+                last_task_used_spe = NULL;
+#endif
 #endif /* CONFIG_SMP */
 }
 
 void flush_thread(void)
 {
+#ifdef CONFIG_PPC64
         struct thread_info *t = current_thread_info();
 
-        kprobe_flush_task(current);
         if (t->flags & _TIF_ABI_PENDING)
                 t->flags ^= (_TIF_ABI_PENDING | _TIF_32BIT);
+#endif
+        kprobe_flush_task(current);
 
 #ifndef CONFIG_SMP
         if (last_task_used_math == current)
@@ -362,12 +480,18 @@ void flush_thread(void)
         if (last_task_used_altivec == current)
                 last_task_used_altivec = NULL;
 #endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+        if (last_task_used_spe == current)
+                last_task_used_spe = NULL;
+#endif
 #endif /* CONFIG_SMP */
 
+#ifdef CONFIG_PPC64     /* for now */
         if (current->thread.dabr) {
                 current->thread.dabr = 0;
                 set_dabr(0);
         }
+#endif
 }
 
 void
@@ -375,7 +499,6 @@ release_thread(struct task_struct *t)
 {
 }
 
-
 /*
  * This gets called before we allocate a new thread and copy
  * the current task into it.
@@ -384,36 +507,44 @@ void prepare_to_copy(struct task_struct *tsk)
 {
         flush_fp_to_thread(current);
         flush_altivec_to_thread(current);
+        flush_spe_to_thread(current);
 }
 
 /*
  * Copy a thread..
  */
-int
-copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
-            unsigned long unused, struct task_struct *p, struct pt_regs *regs)
+int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+                unsigned long unused, struct task_struct *p,
+                struct pt_regs *regs)
 {
         struct pt_regs *childregs, *kregs;
         extern void ret_from_fork(void);
         unsigned long sp = (unsigned long)p->thread_info + THREAD_SIZE;
 
+        CHECK_FULL_REGS(regs);
         /* Copy registers */
         sp -= sizeof(struct pt_regs);
         childregs = (struct pt_regs *) sp;
         *childregs = *regs;
         if ((childregs->msr & MSR_PR) == 0) {
-                /* for kernel thread, set stackptr in new task */
+                /* for kernel thread, set `current' and stackptr in new task */
                 childregs->gpr[1] = sp + sizeof(struct pt_regs);
-                p->thread.regs = NULL;  /* no user register state */
+#ifdef CONFIG_PPC32
+                childregs->gpr[2] = (unsigned long) p;
+#else
                 clear_ti_thread_flag(p->thread_info, TIF_32BIT);
+#endif
+                p->thread.regs = NULL;  /* no user register state */
         } else {
                 childregs->gpr[1] = usp;
                 p->thread.regs = childregs;
                 if (clone_flags & CLONE_SETTLS) {
-                        if (test_thread_flag(TIF_32BIT))
-                                childregs->gpr[2] = childregs->gpr[6];
-                        else
+#ifdef CONFIG_PPC64
+                        if (!test_thread_flag(TIF_32BIT))
                                 childregs->gpr[13] = childregs->gpr[6];
+                        else
+#endif
+                                childregs->gpr[2] = childregs->gpr[6];
                 }
         }
         childregs->gpr[3] = 0;  /* Result from fork() */
@@ -431,6 +562,8 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
         kregs = (struct pt_regs *) sp;
         sp -= STACK_FRAME_OVERHEAD;
         p->thread.ksp = sp;
+
+#ifdef CONFIG_PPC64
         if (cpu_has_feature(CPU_FTR_SLB)) {
                 unsigned long sp_vsid = get_kernel_vsid(sp);
 
@@ -449,6 +582,10 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
          * function.
          */
         kregs->nip = *((unsigned long *)ret_from_fork);
+#else
+        kregs->nip = (unsigned long)ret_from_fork;
+        p->thread.last_syscall = -1;
+#endif
 
         return 0;
 }
@@ -456,30 +593,17 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 /*
  * Set up a thread for executing a new program
  */
-void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp)
+void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 {
-        unsigned long entry, toc, load_addr = regs->gpr[2];
+#ifdef CONFIG_PPC64
+        unsigned long load_addr = regs->gpr[2]; /* saved by ELF_PLAT_INIT */
+#endif
 
-        /* fdptr is a relocated pointer to the function descriptor for
-         * the elf _start routine.  The first entry in the function
-         * descriptor is the entry address of _start and the second
-         * entry is the TOC value we need to use.
-         */
         set_fs(USER_DS);
-        __get_user(entry, (unsigned long __user *)fdptr);
-        __get_user(toc, (unsigned long __user *)fdptr+1);
-
-        /* Check whether the e_entry function descriptor entries
-         * need to be relocated before we can use them.
-         */
-        if (load_addr != 0) {
-                entry += load_addr;
-                toc   += load_addr;
-        }
 
         /*
          * If we exec out of a kernel thread then thread.regs will not be
-         * set. Do it now.
+         * set.  Do it now.
          */
         if (!current->thread.regs) {
                 unsigned long childregs = (unsigned long)current->thread_info +
@@ -488,36 +612,101 @@ void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp)
                 current->thread.regs = (struct pt_regs *)childregs;
         }
 
-        regs->nip = entry;
+        memset(regs->gpr, 0, sizeof(regs->gpr));
+        regs->ctr = 0;
+        regs->link = 0;
+        regs->xer = 0;
+        regs->ccr = 0;
         regs->gpr[1] = sp;
-        regs->gpr[2] = toc;
-        regs->msr = MSR_USER64;
+
+#ifdef CONFIG_PPC32
+        regs->mq = 0;
+        regs->nip = start;
+        regs->msr = MSR_USER;
+#else
+        if (!test_thread_flag(TIF_32BIT)) {
+                unsigned long entry, toc;
+
+                /* start is a relocated pointer to the function descriptor for
+                 * the elf _start routine.  The first entry in the function
+                 * descriptor is the entry address of _start and the second
+                 * entry is the TOC value we need to use.
+                 */
+                __get_user(entry, (unsigned long __user *)start);
+                __get_user(toc, (unsigned long __user *)start+1);
+
+                /* Check whether the e_entry function descriptor entries
+                 * need to be relocated before we can use them.
+                 */
+                if (load_addr != 0) {
+                        entry += load_addr;
+                        toc   += load_addr;
+                }
+                regs->nip = entry;
+                regs->gpr[2] = toc;
+                regs->msr = MSR_USER64;
+        } else {
+                regs->nip = start;
+                regs->gpr[2] = 0;
+                regs->msr = MSR_USER32;
+        }
+#endif
+
 #ifndef CONFIG_SMP
         if (last_task_used_math == current)
-                last_task_used_math = 0;
-#endif /* CONFIG_SMP */
-        memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
-        current->thread.fpscr = 0;
+                last_task_used_math = NULL;
 #ifdef CONFIG_ALTIVEC
-#ifndef CONFIG_SMP
         if (last_task_used_altivec == current)
-                last_task_used_altivec = 0;
+                last_task_used_altivec = NULL;
+#endif
+#ifdef CONFIG_SPE
+        if (last_task_used_spe == current)
+                last_task_used_spe = NULL;
+#endif
 #endif /* CONFIG_SMP */
+        memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
+        current->thread.fpscr.val = 0;
+#ifdef CONFIG_ALTIVEC
         memset(current->thread.vr, 0, sizeof(current->thread.vr));
-        current->thread.vscr.u[0] = 0;
-        current->thread.vscr.u[1] = 0;
-        current->thread.vscr.u[2] = 0;
+        memset(&current->thread.vscr, 0, sizeof(current->thread.vscr));
         current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */
         current->thread.vrsave = 0;
         current->thread.used_vr = 0;
 #endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+        memset(current->thread.evr, 0, sizeof(current->thread.evr));
+        current->thread.acc = 0;
+        current->thread.spefscr = 0;
+        current->thread.used_spe = 0;
+#endif /* CONFIG_SPE */
 }
-EXPORT_SYMBOL(start_thread);
+
+#define PR_FP_ALL_EXCEPT (PR_FP_EXC_DIV | PR_FP_EXC_OVF | PR_FP_EXC_UND \
+                | PR_FP_EXC_RES | PR_FP_EXC_INV)
 
 int set_fpexc_mode(struct task_struct *tsk, unsigned int val)
 {
         struct pt_regs *regs = tsk->thread.regs;
 
+        /* This is a bit hairy.  If we are an SPE enabled  processor
+         * (have embedded fp) we store the IEEE exception enable flags in
+         * fpexc_mode.  fpexc_mode is also used for setting FP exception
+         * mode (asyn, precise, disabled) for 'Classic' FP. */
+        if (val & PR_FP_EXC_SW_ENABLE) {
+#ifdef CONFIG_SPE
+                tsk->thread.fpexc_mode = val &
+                        (PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT);
+                return 0;
+#else
+                return -EINVAL;
+#endif
+        }
+
+        /* on a CONFIG_SPE this does not hurt us.  The bits that
+         * __pack_fe01 use do not overlap with bits used for
+         * PR_FP_EXC_SW_ENABLE.  Additionally, the MSR[FE0,FE1] bits
+         * on CONFIG_SPE implementations are reserved so writing to
+         * them does not change anything */
         if (val > PR_FP_EXC_PRECISE)
                 return -EINVAL;
         tsk->thread.fpexc_mode = __pack_fe01(val);
@@ -531,38 +720,41 @@ int get_fpexc_mode(struct task_struct *tsk, unsigned long adr)
 {
         unsigned int val;
 
-        val = __unpack_fe01(tsk->thread.fpexc_mode);
+        if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE)
+#ifdef CONFIG_SPE
+                val = tsk->thread.fpexc_mode;
+#else
+                return -EINVAL;
+#endif
+        else
+                val = __unpack_fe01(tsk->thread.fpexc_mode);
         return put_user(val, (unsigned int __user *) adr);
 }
 
-int sys_clone(unsigned long clone_flags, unsigned long p2, unsigned long p3,
-              unsigned long p4, unsigned long p5, unsigned long p6,
+#define TRUNC_PTR(x)    ((typeof(x))(((unsigned long)(x)) & 0xffffffff))
+
+int sys_clone(unsigned long clone_flags, unsigned long usp,
+              int __user *parent_tidp, void __user *child_threadptr,
+              int __user *child_tidp, int p6,
               struct pt_regs *regs)
 {
-        unsigned long parent_tidptr = 0;
-        unsigned long child_tidptr = 0;
-
-        if (p2 == 0)
-                p2 = regs->gpr[1];      /* stack pointer for child */
-
-        if (clone_flags & (CLONE_PARENT_SETTID | CLONE_CHILD_SETTID |
-                           CLONE_CHILD_CLEARTID)) {
-                parent_tidptr = p3;
-                child_tidptr = p5;
-                if (test_thread_flag(TIF_32BIT)) {
-                        parent_tidptr &= 0xffffffff;
-                        child_tidptr &= 0xffffffff;
-                }
+        CHECK_FULL_REGS(regs);
+        if (usp == 0)
+                usp = regs->gpr[1];     /* stack pointer for child */
+#ifdef CONFIG_PPC64
+        if (test_thread_flag(TIF_32BIT)) {
+                parent_tidp = TRUNC_PTR(parent_tidp);
+                child_tidp = TRUNC_PTR(child_tidp);
         }
-
-        return do_fork(clone_flags, p2, regs, 0,
-                    (int __user *)parent_tidptr, (int __user *)child_tidptr);
+#endif
+        return do_fork(clone_flags, usp, regs, 0, parent_tidp, child_tidp);
 }
 
 int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
              unsigned long p4, unsigned long p5, unsigned long p6,
              struct pt_regs *regs)
 {
+        CHECK_FULL_REGS(regs);
         return do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
 }
 
@@ -570,8 +762,9 @@ int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
               unsigned long p4, unsigned long p5, unsigned long p6,
               struct pt_regs *regs)
 {
-        return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1], regs, 0,
-                    NULL, NULL);
+        CHECK_FULL_REGS(regs);
+        return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1],
+                        regs, 0, NULL, NULL);
 }
 
 int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
@@ -579,30 +772,27 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
                struct pt_regs *regs)
 {
         int error;
-        char * filename;
-        
+        char *filename;
+
         filename = getname((char __user *) a0);
         error = PTR_ERR(filename);
         if (IS_ERR(filename))
                 goto out;
         flush_fp_to_thread(current);
         flush_altivec_to_thread(current);
+        flush_spe_to_thread(current);
         error = do_execve(filename, (char __user * __user *) a1,
-                                    (char __user * __user *) a2, regs);
-  
+                          (char __user * __user *) a2, regs);
         if (error == 0) {
                 task_lock(current);
                 current->ptrace &= ~PT_DTRACE;
                 task_unlock(current);
         }
         putname(filename);
-
 out:
         return error;
 }
 
-static int kstack_depth_to_print = 64;
-
 static int validate_sp(unsigned long sp, struct task_struct *p,
                        unsigned long nbytes)
 {
@@ -627,6 +817,20 @@ static int validate_sp(unsigned long sp, struct task_struct *p,
         return 0;
 }
 
+#ifdef CONFIG_PPC64
+#define MIN_STACK_FRAME 112     /* same as STACK_FRAME_OVERHEAD, in fact */
+#define FRAME_LR_SAVE   2
+#define INT_FRAME_SIZE  (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD + 288)
+#define REGS_MARKER     0x7265677368657265ul
+#define FRAME_MARKER    12
+#else
+#define MIN_STACK_FRAME 16
+#define FRAME_LR_SAVE   1
+#define INT_FRAME_SIZE  (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD)
+#define REGS_MARKER     0x72656773ul
+#define FRAME_MARKER    2
+#endif
+
 unsigned long get_wchan(struct task_struct *p)
 {
         unsigned long ip, sp;
@@ -636,15 +840,15 @@ unsigned long get_wchan(struct task_struct *p)
                 return 0;
 
         sp = p->thread.ksp;
-        if (!validate_sp(sp, p, 112))
+        if (!validate_sp(sp, p, MIN_STACK_FRAME))
                 return 0;
 
         do {
                 sp = *(unsigned long *)sp;
-                if (!validate_sp(sp, p, 112))
+                if (!validate_sp(sp, p, MIN_STACK_FRAME))
                         return 0;
                 if (count > 0) {
-                        ip = *(unsigned long *)(sp + 16);
+                        ip = ((unsigned long *)sp)[FRAME_LR_SAVE];
                         if (!in_sched_functions(ip))
                                 return ip;
                 }
@@ -653,33 +857,35 @@ unsigned long get_wchan(struct task_struct *p)
 }
 EXPORT_SYMBOL(get_wchan);
 
-void show_stack(struct task_struct *p, unsigned long *_sp)
+static int kstack_depth_to_print = 64;
+
+void show_stack(struct task_struct *tsk, unsigned long *stack)
 {
-        unsigned long ip, newsp, lr;
+        unsigned long sp, ip, lr, newsp;
         int count = 0;
-        unsigned long sp = (unsigned long)_sp;
         int firstframe = 1;
 
+        sp = (unsigned long) stack;
+        if (tsk == NULL)
+                tsk = current;
         if (sp == 0) {
-                if (p) {
-                        sp = p->thread.ksp;
-                } else {
-                        sp = __get_SP();
-                        p = current;
-                }
+                if (tsk == current)
+                        asm("mr %0,1" : "=r" (sp));
+                else
+                        sp = tsk->thread.ksp;
         }
 
         lr = 0;
         printk("Call Trace:\n");
         do {
-                if (!validate_sp(sp, p, 112))
+                if (!validate_sp(sp, tsk, MIN_STACK_FRAME))
                         return;
 
-                _sp = (unsigned long *) sp;
-                newsp = _sp[0];
-                ip = _sp[2];
+                stack = (unsigned long *) sp;
+                newsp = stack[0];
+                ip = stack[FRAME_LR_SAVE];
                 if (!firstframe || ip != lr) {
-                        printk("[%016lx] [%016lx] ", sp, ip);
+                        printk("["REG"] ["REG"] ", sp, ip);
                         print_symbol("%s", ip);
                         if (firstframe)
                                 printk(" (unreliable)");
@@ -691,8 +897,8 @@ void show_stack(struct task_struct *p, unsigned long *_sp)
                  * See if this is an exception frame.
                  * We look for the "regshere" marker in the current frame.
                  */
-                if (validate_sp(sp, p, sizeof(struct pt_regs) + 400)
-                    && _sp[12] == 0x7265677368657265ul) {
+                if (validate_sp(sp, tsk, INT_FRAME_SIZE)
+                    && stack[FRAME_MARKER] == REGS_MARKER) {
                         struct pt_regs *regs = (struct pt_regs *)
                                 (sp + STACK_FRAME_OVERHEAD);
                         printk("--- Exception: %lx", regs->trap);
@@ -708,6 +914,6 @@ void show_stack(struct task_struct *p, unsigned long *_sp)
 
 void dump_stack(void)
 {
-        show_stack(current, (unsigned long *)__get_SP());
+        show_stack(current, NULL);
 }
 EXPORT_SYMBOL(dump_stack);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
new file mode 100644
index 000000000000..2eccd0e159e3
--- /dev/null
+++ b/arch/powerpc/kernel/prom.c
@@ -0,0 +1,2170 @@
+/*
+ * Procedures for creating, accessing and interpreting the device tree.
+ *
+ * Paul Mackerras       August 1996.
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ * 
+ *  Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
+ *    {engebret|bergner}@us.ibm.com 
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#undef DEBUG
+
+#include <stdarg.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/threads.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/stringify.h>
+#include <linux/delay.h>
+#include <linux/initrd.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+
+#include <asm/prom.h>
+#include <asm/rtas.h>
+#include <asm/lmb.h>
+#include <asm/page.h>
+#include <asm/processor.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/smp.h>
+#include <asm/system.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/pci.h>
+#include <asm/iommu.h>
+#include <asm/btext.h>
+#include <asm/sections.h>
+#include <asm/machdep.h>
+#include <asm/pSeries_reconfig.h>
+#include <asm/pci-bridge.h>
+#ifdef CONFIG_PPC64
+#include <asm/systemcfg.h>
+#endif
+
+#ifdef DEBUG
+#define DBG(fmt...) printk(KERN_ERR fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+struct pci_reg_property {
+        struct pci_address addr;
+        u32 size_hi;
+        u32 size_lo;
+};
+
+struct isa_reg_property {
+        u32 space;
+        u32 address;
+        u32 size;
+};
+
+
+typedef int interpret_func(struct device_node *, unsigned long *,
+                           int, int, int);
+
+extern struct rtas_t rtas;
+extern struct lmb lmb;
+extern unsigned long klimit;
+
+static int __initdata dt_root_addr_cells;
+static int __initdata dt_root_size_cells;
+
+#ifdef CONFIG_PPC64
+static int __initdata iommu_is_off;
+int __initdata iommu_force_on;
+unsigned long tce_alloc_start, tce_alloc_end;
+#endif
+
+typedef u32 cell_t;
+
+#if 0
+static struct boot_param_header *initial_boot_params __initdata;
+#else
+struct boot_param_header *initial_boot_params;
+#endif
+
+static struct device_node *allnodes = NULL;
+
+/* use when traversing tree through the allnext, child, sibling,
+ * or parent members of struct device_node.
+ */
+static DEFINE_RWLOCK(devtree_lock);
+
+/* export that to outside world */
+struct device_node *of_chosen;
+
+struct device_node *dflt_interrupt_controller;
+int num_interrupt_controllers;
+
+/*
+ * Wrapper for allocating memory for various data that needs to be
+ * attached to device nodes as they are processed at boot or when
+ * added to the device tree later (e.g. DLPAR).  At boot there is
+ * already a region reserved so we just increment *mem_start by size;
+ * otherwise we call kmalloc.
+ */
+static void * prom_alloc(unsigned long size, unsigned long *mem_start)
+{
+        unsigned long tmp;
+
+        if (!mem_start)
+                return kmalloc(size, GFP_KERNEL);
+
+        tmp = *mem_start;
+        *mem_start += size;
+        return (void *)tmp;
+}
+
+/*
+ * Find the device_node with a given phandle.
+ */
+static struct device_node * find_phandle(phandle ph)
+{
+        struct device_node *np;
+
+        for (np = allnodes; np != 0; np = np->allnext)
+                if (np->linux_phandle == ph)
+                        return np;
+        return NULL;
+}
+
+/*
+ * Find the interrupt parent of a node.
+ */
+static struct device_node * __devinit intr_parent(struct device_node *p)
+{
+        phandle *parp;
+
+        parp = (phandle *) get_property(p, "interrupt-parent", NULL);
+        if (parp == NULL)
+                return p->parent;
+        p = find_phandle(*parp);
+        if (p != NULL)
+                return p;
+        /*
+         * On a powermac booted with BootX, we don't get to know the
+         * phandles for any nodes, so find_phandle will return NULL.
+         * Fortunately these machines only have one interrupt controller
+         * so there isn't in fact any ambiguity.  -- paulus
+         */
+        if (num_interrupt_controllers == 1)
+                p = dflt_interrupt_controller;
+        return p;
+}
+
+/*
+ * Find out the size of each entry of the interrupts property
+ * for a node.
+ */
+int __devinit prom_n_intr_cells(struct device_node *np)
+{
+        struct device_node *p;
+        unsigned int *icp;
+
+        for (p = np; (p = intr_parent(p)) != NULL; ) {
+                icp = (unsigned int *)
+                        get_property(p, "#interrupt-cells", NULL);
+                if (icp != NULL)
+                        return *icp;
+                if (get_property(p, "interrupt-controller", NULL) != NULL
+                    || get_property(p, "interrupt-map", NULL) != NULL) {
+                        printk("oops, node %s doesn't have #interrupt-cells\n",
+                               p->full_name);
+                        return 1;
+                }
+        }
+#ifdef DEBUG_IRQ
+        printk("prom_n_intr_cells failed for %s\n", np->full_name);
+#endif
+        return 1;
+}
+
+/*
+ * Map an interrupt from a device up to the platform interrupt
+ * descriptor.
+ */
+static int __devinit map_interrupt(unsigned int **irq, struct device_node **ictrler,
+                                   struct device_node *np, unsigned int *ints,
+                                   int nintrc)
+{
+        struct device_node *p, *ipar;
+        unsigned int *imap, *imask, *ip;
+        int i, imaplen, match;
+        int newintrc = 0, newaddrc = 0;
+        unsigned int *reg;
+        int naddrc;
+
+        reg = (unsigned int *) get_property(np, "reg", NULL);
+        naddrc = prom_n_addr_cells(np);
+        p = intr_parent(np);
+        while (p != NULL) {
+                if (get_property(p, "interrupt-controller", NULL) != NULL)
+                        /* this node is an interrupt controller, stop here */
+                        break;
+                imap = (unsigned int *)
+                        get_property(p, "interrupt-map", &imaplen);
+                if (imap == NULL) {
+                        p = intr_parent(p);
+                        continue;
+                }
+                imask = (unsigned int *)
+                        get_property(p, "interrupt-map-mask", NULL);
+                if (imask == NULL) {
+                        printk("oops, %s has interrupt-map but no mask\n",
+                               p->full_name);
+                        return 0;
+                }
+                imaplen /= sizeof(unsigned int);
+                match = 0;
+                ipar = NULL;
+                while (imaplen > 0 && !match) {
+                        /* check the child-interrupt field */
+                        match = 1;
+                        for (i = 0; i < naddrc && match; ++i)
+                                match = ((reg[i] ^ imap[i]) & imask[i]) == 0;
+                        for (; i < naddrc + nintrc && match; ++i)
+                                match = ((ints[i-naddrc] ^ imap[i]) & imask[i]) == 0;
+                        imap += naddrc + nintrc;
+                        imaplen -= naddrc + nintrc;
+                        /* grab the interrupt parent */
+                        ipar = find_phandle((phandle) *imap++);
+                        --imaplen;
+                        if (ipar == NULL && num_interrupt_controllers == 1)
+                                /* cope with BootX not giving us phandles */
+                                ipar = dflt_interrupt_controller;
+                        if (ipar == NULL) {
+                                printk("oops, no int parent %x in map of %s\n",
+                                       imap[-1], p->full_name);
+                                return 0;
+                        }
+                        /* find the parent's # addr and intr cells */
+                        ip = (unsigned int *)
+                                get_property(ipar, "#interrupt-cells", NULL);
+                        if (ip == NULL) {
+                                printk("oops, no #interrupt-cells on %s\n",
+                                       ipar->full_name);
+                                return 0;
+                        }
+                        newintrc = *ip;
+                        ip = (unsigned int *)
+                                get_property(ipar, "#address-cells", NULL);
+                        newaddrc = (ip == NULL)? 0: *ip;
+                        imap += newaddrc + newintrc;
+                        imaplen -= newaddrc + newintrc;
+                }
+                if (imaplen < 0) {
+                        printk("oops, error decoding int-map on %s, len=%d\n",
+                               p->full_name, imaplen);
+                        return 0;
+                }
+                if (!match) {
+#ifdef DEBUG_IRQ
+                        printk("oops, no match in %s int-map for %s\n",
+                               p->full_name, np->full_name);
+#endif
+                        return 0;
+                }
+                p = ipar;
+                naddrc = newaddrc;
+                nintrc = newintrc;
+                ints = imap - nintrc;
+                reg = ints - naddrc;
+        }
+        if (p == NULL) {
+#ifdef DEBUG_IRQ
+                printk("hmmm, int tree for %s doesn't have ctrler\n",
+                       np->full_name);
+#endif
+                return 0;
+        }
+        *irq = ints;
+        *ictrler = p;
+        return nintrc;
+}
+
+static unsigned char map_isa_senses[4] = {
+        IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE,
+        IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE,
+        IRQ_SENSE_EDGE  | IRQ_POLARITY_NEGATIVE,
+        IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE
+};
+
+static unsigned char map_mpic_senses[4] = {
+        IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE,
+        IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE,
+        /* 2 seems to be used for the 8259 cascade... */
+        IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE,
+        IRQ_SENSE_EDGE  | IRQ_POLARITY_NEGATIVE,
+};
+
+static int __devinit finish_node_interrupts(struct device_node *np,
+                                            unsigned long *mem_start,
+                                            int measure_only)
+{
+        unsigned int *ints;
+        int intlen, intrcells, intrcount;
+        int i, j, n, sense;
+        unsigned int *irq, virq;
+        struct device_node *ic;
+
+        if (num_interrupt_controllers == 0) {
+                /*
+                 * Old machines just have a list of interrupt numbers
+                 * and no interrupt-controller nodes.
+                 */
+                ints = (unsigned int *) get_property(np, "AAPL,interrupts",
+                                                     &intlen);
+                /* XXX old interpret_pci_props looked in parent too */
+                /* XXX old interpret_macio_props looked for interrupts
+                   before AAPL,interrupts */
+                if (ints == NULL)
+                        ints = (unsigned int *) get_property(np, "interrupts",
+                                                             &intlen);
+                if (ints == NULL)
+                        return 0;
+
+                np->n_intrs = intlen / sizeof(unsigned int);
+                np->intrs = prom_alloc(np->n_intrs * sizeof(np->intrs[0]),
+                                       mem_start);
+                if (!np->intrs)
+                        return -ENOMEM;
+                if (measure_only)
+                        return 0;
+
+                for (i = 0; i < np->n_intrs; ++i) {
+                        np->intrs[i].line = *ints++;
+                        np->intrs[i].sense = IRQ_SENSE_LEVEL
+                                | IRQ_POLARITY_NEGATIVE;
+                }
+                return 0;
+        }
+
+        ints = (unsigned int *) get_property(np, "interrupts", &intlen);
+        if (ints == NULL)
+                return 0;
+        intrcells = prom_n_intr_cells(np);
+        intlen /= intrcells * sizeof(unsigned int);
+
+        np->intrs = prom_alloc(intlen * sizeof(*(np->intrs)), mem_start);
+        if (!np->intrs)
+                return -ENOMEM;
+
+        if (measure_only)
+                return 0;
+
+        intrcount = 0;
+        for (i = 0; i < intlen; ++i, ints += intrcells) {
+                n = map_interrupt(&irq, &ic, np, ints, intrcells);
+                if (n <= 0)
+                        continue;
+
+                /* don't map IRQ numbers under a cascaded 8259 controller */
+                if (ic && device_is_compatible(ic, "chrp,iic")) {
+                        np->intrs[intrcount].line = irq[0];
+                        sense = (n > 1)? (irq[1] & 3): 3;
+                        np->intrs[intrcount].sense = map_isa_senses[sense];
+                } else {
+                        virq = virt_irq_create_mapping(irq[0]);
+#ifdef CONFIG_PPC64
+                        if (virq == NO_IRQ) {
+                                printk(KERN_CRIT "Could not allocate interrupt"
+                                       " number for %s\n", np->full_name);
+                                continue;
+                        }
+#endif
+                        np->intrs[intrcount].line = irq_offset_up(virq);
+                        sense = (n > 1)? (irq[1] & 3): 1;
+                        np->intrs[intrcount].sense = map_mpic_senses[sense];
+                }
+
+#ifdef CONFIG_PPC64
+                /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */
+                if (systemcfg->platform == PLATFORM_POWERMAC && ic && ic->parent) {
+                        char *name = get_property(ic->parent, "name", NULL);
+                        if (name && !strcmp(name, "u3"))
+                                np->intrs[intrcount].line += 128;
+                        else if (!(name && !strcmp(name, "mac-io")))
+                                /* ignore other cascaded controllers, such as
+                                   the k2-sata-root */
+                                break;
+                }
+#endif
+                if (n > 2) {
+                        printk("hmmm, got %d intr cells for %s:", n,
+                               np->full_name);
+                        for (j = 0; j < n; ++j)
+                                printk(" %d", irq[j]);
+                        printk("\n");
+                }
+                ++intrcount;
+        }
+        np->n_intrs = intrcount;
+
+        return 0;
+}
+
+static int __devinit interpret_pci_props(struct device_node *np,
+                                         unsigned long *mem_start,
+                                         int naddrc, int nsizec,
+                                         int measure_only)
+{
+        struct address_range *adr;
+        struct pci_reg_property *pci_addrs;
+        int i, l, n_addrs;
+
+        pci_addrs = (struct pci_reg_property *)
+                get_property(np, "assigned-addresses", &l);
+        if (!pci_addrs)
+                return 0;
+
+        n_addrs = l / sizeof(*pci_addrs);
+
+        adr = prom_alloc(n_addrs * sizeof(*adr), mem_start);
+        if (!adr)
+                return -ENOMEM;
+
+        if (measure_only)
+                return 0;
+
+        np->addrs = adr;
+        np->n_addrs = n_addrs;
+
+        for (i = 0; i < n_addrs; i++) {
+                adr[i].space = pci_addrs[i].addr.a_hi;
+                adr[i].address = pci_addrs[i].addr.a_lo |
+                        ((u64)pci_addrs[i].addr.a_mid << 32);
+                adr[i].size = pci_addrs[i].size_lo;
+        }
+
+        return 0;
+}
+
+static int __init interpret_dbdma_props(struct device_node *np,
+                                        unsigned long *mem_start,
+                                        int naddrc, int nsizec,
+                                        int measure_only)
+{
+        struct reg_property32 *rp;
+        struct address_range *adr;
+        unsigned long base_address;
+        int i, l;
+        struct device_node *db;
+
+        base_address = 0;
+        if (!measure_only) {
+                for (db = np->parent; db != NULL; db = db->parent) {
+                        if (!strcmp(db->type, "dbdma") && db->n_addrs != 0) {
+                                base_address = db->addrs[0].address;
+                                break;
+                        }
+                }
+        }
+
+        rp = (struct reg_property32 *) get_property(np, "reg", &l);
+        if (rp != 0 && l >= sizeof(struct reg_property32)) {
+                i = 0;
+                adr = (struct address_range *) (*mem_start);
+                while ((l -= sizeof(struct reg_property32)) >= 0) {
+                        if (!measure_only) {
+                                adr[i].space = 2;
+                                adr[i].address = rp[i].address + base_address;
+                                adr[i].size = rp[i].size;
+                        }
+                        ++i;
+                }
+                np->addrs = adr;
+                np->n_addrs = i;
+                (*mem_start) += i * sizeof(struct address_range);
+        }
+
+        return 0;
+}
+
+static int __init interpret_macio_props(struct device_node *np,
+                                        unsigned long *mem_start,
+                                        int naddrc, int nsizec,
+                                        int measure_only)
+{
+        struct reg_property32 *rp;
+        struct address_range *adr;
+        unsigned long base_address;
+        int i, l;
+        struct device_node *db;
+
+        base_address = 0;
+        if (!measure_only) {
+                for (db = np->parent; db != NULL; db = db->parent) {
+                        if (!strcmp(db->type, "mac-io") && db->n_addrs != 0) {
+                                base_address = db->addrs[0].address;
+                                break;
+                        }
+                }
+        }
+
+        rp = (struct reg_property32 *) get_property(np, "reg", &l);
+        if (rp != 0 && l >= sizeof(struct reg_property32)) {
+                i = 0;
+                adr = (struct address_range *) (*mem_start);
+                while ((l -= sizeof(struct reg_property32)) >= 0) {
+                        if (!measure_only) {
+                                adr[i].space = 2;
+                                adr[i].address = rp[i].address + base_address;
+                                adr[i].size = rp[i].size;
+                        }
+                        ++i;
+                }
+                np->addrs = adr;
+                np->n_addrs = i;
+                (*mem_start) += i * sizeof(struct address_range);
+        }
+
+        return 0;
+}
+
+static int __init interpret_isa_props(struct device_node *np,
+                                      unsigned long *mem_start,
+                                      int naddrc, int nsizec,
+                                      int measure_only)
+{
+        struct isa_reg_property *rp;
+        struct address_range *adr;
+        int i, l;
+
+        rp = (struct isa_reg_property *) get_property(np, "reg", &l);
+        if (rp != 0 && l >= sizeof(struct isa_reg_property)) {
+                i = 0;
+                adr = (struct address_range *) (*mem_start);
+                while ((l -= sizeof(struct isa_reg_property)) >= 0) {
+                        if (!measure_only) {
+                                adr[i].space = rp[i].space;
+                                adr[i].address = rp[i].address;
+                                adr[i].size = rp[i].size;
+                        }
+                        ++i;
+                }
+                np->addrs = adr;
+                np->n_addrs = i;
+                (*mem_start) += i * sizeof(struct address_range);
+        }
+
+        return 0;
+}
+
+static int __init interpret_root_props(struct device_node *np,
+                                       unsigned long *mem_start,
+                                       int naddrc, int nsizec,
+                                       int measure_only)
+{
+        struct address_range *adr;
+        int i, l;
+        unsigned int *rp;
+        int rpsize = (naddrc + nsizec) * sizeof(unsigned int);
+
+        rp = (unsigned int *) get_property(np, "reg", &l);
+        if (rp != 0 && l >= rpsize) {
+                i = 0;
+                adr = (struct address_range *) (*mem_start);
+                while ((l -= rpsize) >= 0) {
+                        if (!measure_only) {
+                                adr[i].space = 0;
+                                adr[i].address = rp[naddrc - 1];
+                                adr[i].size = rp[naddrc + nsizec - 1];
+                        }
+                        ++i;
+                        rp += naddrc + nsizec;
+                }
+                np->addrs = adr;
+                np->n_addrs = i;
+                (*mem_start) += i * sizeof(struct address_range);
+        }
+
+        return 0;
+}
+
+static int __devinit finish_node(struct device_node *np,
+                                 unsigned long *mem_start,
+                                 interpret_func *ifunc,
+                                 int naddrc, int nsizec,
+                                 int measure_only)
+{
+        struct device_node *child;
+        int *ip, rc = 0;
+
+        /* get the device addresses and interrupts */
+        if (ifunc != NULL)
+                rc = ifunc(np, mem_start, naddrc, nsizec, measure_only);
+        if (rc)
+                goto out;
+
+        rc = finish_node_interrupts(np, mem_start, measure_only);
+        if (rc)
+                goto out;
+
+        /* Look for #address-cells and #size-cells properties. */
+        ip = (int *) get_property(np, "#address-cells", NULL);
+        if (ip != NULL)
+                naddrc = *ip;
+        ip = (int *) get_property(np, "#size-cells", NULL);
+        if (ip != NULL)
+                nsizec = *ip;
+
+        if (!strcmp(np->name, "device-tree") || np->parent == NULL)
+                ifunc = interpret_root_props;
+        else if (np->type == 0)
+                ifunc = NULL;
+        else if (!strcmp(np->type, "pci") || !strcmp(np->type, "vci"))
+                ifunc = interpret_pci_props;
+        else if (!strcmp(np->type, "dbdma"))
+                ifunc = interpret_dbdma_props;
+        else if (!strcmp(np->type, "mac-io") || ifunc == interpret_macio_props)
+                ifunc = interpret_macio_props;
+        else if (!strcmp(np->type, "isa"))
+                ifunc = interpret_isa_props;
+        else if (!strcmp(np->name, "uni-n") || !strcmp(np->name, "u3"))
+                ifunc = interpret_root_props;
+        else if (!((ifunc == interpret_dbdma_props
+                    || ifunc == interpret_macio_props)
+                   && (!strcmp(np->type, "escc")
+                       || !strcmp(np->type, "media-bay"))))
+                ifunc = NULL;
+
+        for (child = np->child; child != NULL; child = child->sibling) {
+                rc = finish_node(child, mem_start, ifunc,
+                                 naddrc, nsizec, measure_only);
+                if (rc)
+                        goto out;
+        }
+out:
+        return rc;
+}
+
+static void __init scan_interrupt_controllers(void)
+{
+        struct device_node *np;
+        int n = 0;
+        char *name, *ic;
+        int iclen;
+
+        for (np = allnodes; np != NULL; np = np->allnext) {
+                ic = get_property(np, "interrupt-controller", &iclen);
+                name = get_property(np, "name", NULL);
+                /* checking iclen makes sure we don't get a false
+                   match on /chosen.interrupt_controller */
+                if ((name != NULL
+                     && strcmp(name, "interrupt-controller") == 0)
+                    || (ic != NULL && iclen == 0
+                        && strcmp(name, "AppleKiwi"))) {
+                        if (n == 0)
+                                dflt_interrupt_controller = np;
+                        ++n;
+                }
+        }
+        num_interrupt_controllers = n;
+}
+
+/**
+ * finish_device_tree is called once things are running normally
+ * (i.e. with text and data mapped to the address they were linked at).
+ * It traverses the device tree and fills in some of the additional,
+ * fields in each node like {n_}addrs and {n_}intrs, the virt interrupt
+ * mapping is also initialized at this point.
+ */
+void __init finish_device_tree(void)
+{
+        unsigned long start, end, size = 0;
+
+        DBG(" -> finish_device_tree\n");
+
+#ifdef CONFIG_PPC64
+        /* Initialize virtual IRQ map */
+        virt_irq_init();
+#endif
+        scan_interrupt_controllers();
+
+        /*
+         * Finish device-tree (pre-parsing some properties etc...)
+         * We do this in 2 passes. One with "measure_only" set, which
+         * will only measure the amount of memory needed, then we can
+         * allocate that memory, and call finish_node again. However,
+         * we must be careful as most routines will fail nowadays when
+         * prom_alloc() returns 0, so we must make sure our first pass
+         * doesn't start at 0. We pre-initialize size to 16 for that
+         * reason and then remove those additional 16 bytes
+         */
+        size = 16;
+        finish_node(allnodes, &size, NULL, 0, 0, 1);
+        size -= 16;
+        end = start = (unsigned long) __va(lmb_alloc(size, 128));
+        finish_node(allnodes, &end, NULL, 0, 0, 0);
+        BUG_ON(end != start + size);
+
+        DBG(" <- finish_device_tree\n");
+}
+
+static inline char *find_flat_dt_string(u32 offset)
+{
+        return ((char *)initial_boot_params) +
+                initial_boot_params->off_dt_strings + offset;
+}
+
+/**
+ * This function is used to scan the flattened device-tree, it is
+ * used to extract the memory informations at boot before we can
+ * unflatten the tree
+ */
+static int __init scan_flat_dt(int (*it)(unsigned long node,
+                                         const char *uname, int depth,
+                                         void *data),
+                               void *data)
+{
+        unsigned long p = ((unsigned long)initial_boot_params) +
+                initial_boot_params->off_dt_struct;
+        int rc = 0;
+        int depth = -1;
+
+        do {
+                u32 tag = *((u32 *)p);
+                char *pathp;
+                
+                p += 4;
+                if (tag == OF_DT_END_NODE) {
+                        depth --;
+                        continue;
+                }
+                if (tag == OF_DT_NOP)
+                        continue;
+                if (tag == OF_DT_END)
+                        break;
+                if (tag == OF_DT_PROP) {
+                        u32 sz = *((u32 *)p);
+                        p += 8;
+                        if (initial_boot_params->version < 0x10)
+                                p = _ALIGN(p, sz >= 8 ? 8 : 4);
+                        p += sz;
+                        p = _ALIGN(p, 4);
+                        continue;
+                }
+                if (tag != OF_DT_BEGIN_NODE) {
+                        printk(KERN_WARNING "Invalid tag %x scanning flattened"
+                               " device tree !\n", tag);
+                        return -EINVAL;
+                }
+                depth++;
+                pathp = (char *)p;
+                p = _ALIGN(p + strlen(pathp) + 1, 4);
+                if ((*pathp) == '/') {
+                        char *lp, *np;
+                        for (lp = NULL, np = pathp; *np; np++)
+                                if ((*np) == '/')
+                                        lp = np+1;
+                        if (lp != NULL)
+                                pathp = lp;
+                }
+                rc = it(p, pathp, depth, data);
+                if (rc != 0)
+                        break;          
+        } while(1);
+
+        return rc;
+}
+
+/**
+ * This  function can be used within scan_flattened_dt callback to get
+ * access to properties
+ */
+static void* __init get_flat_dt_prop(unsigned long node, const char *name,
+                                     unsigned long *size)
+{
+        unsigned long p = node;
+
+        do {
+                u32 tag = *((u32 *)p);
+                u32 sz, noff;
+                const char *nstr;
+
+                p += 4;
+                if (tag == OF_DT_NOP)
+                        continue;
+                if (tag != OF_DT_PROP)
+                        return NULL;
+
+                sz = *((u32 *)p);
+                noff = *((u32 *)(p + 4));
+                p += 8;
+                if (initial_boot_params->version < 0x10)
+                        p = _ALIGN(p, sz >= 8 ? 8 : 4);
+
+                nstr = find_flat_dt_string(noff);
+                if (nstr == NULL) {
+                        printk(KERN_WARNING "Can't find property index"
+                               " name !\n");
+                        return NULL;
+                }
+                if (strcmp(name, nstr) == 0) {
+                        if (size)
+                                *size = sz;
+                        return (void *)p;
+                }
+                p += sz;
+                p = _ALIGN(p, 4);
+        } while(1);
+}
+
+static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
+                                       unsigned long align)
+{
+        void *res;
+
+        *mem = _ALIGN(*mem, align);
+        res = (void *)*mem;
+        *mem += size;
+
+        return res;
+}
+
+static unsigned long __init unflatten_dt_node(unsigned long mem,
+                                              unsigned long *p,
+                                              struct device_node *dad,
+                                              struct device_node ***allnextpp,
+                                              unsigned long fpsize)
+{
+        struct device_node *np;
+        struct property *pp, **prev_pp = NULL;
+        char *pathp;
+        u32 tag;
+        unsigned int l, allocl;
+        int has_name = 0;
+        int new_format = 0;
+
+        tag = *((u32 *)(*p));
+        if (tag != OF_DT_BEGIN_NODE) {
+                printk("Weird tag at start of node: %x\n", tag);
+                return mem;
+        }
+        *p += 4;
+        pathp = (char *)*p;
+        l = allocl = strlen(pathp) + 1;
+        *p = _ALIGN(*p + l, 4);
+
+        /* version 0x10 has a more compact unit name here instead of the full
+         * path. we accumulate the full path size using "fpsize", we'll rebuild
+         * it later. We detect this because the first character of the name is
+         * not '/'.
+         */
+        if ((*pathp) != '/') {
+                new_format = 1;
+                if (fpsize == 0) {
+                        /* root node: special case. fpsize accounts for path
+                         * plus terminating zero. root node only has '/', so
+                         * fpsize should be 2, but we want to avoid the first
+                         * level nodes to have two '/' so we use fpsize 1 here
+                         */
+                        fpsize = 1;
+                        allocl = 2;
+                } else {
+                        /* account for '/' and path size minus terminal 0
+                         * already in 'l'
+                         */
+                        fpsize += l;
+                        allocl = fpsize;
+                }
+        }
+
+
+        np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
+                                __alignof__(struct device_node));
+        if (allnextpp) {
+                memset(np, 0, sizeof(*np));
+                np->full_name = ((char*)np) + sizeof(struct device_node);
+                if (new_format) {
+                        char *p = np->full_name;
+                        /* rebuild full path for new format */
+                        if (dad && dad->parent) {
+                                strcpy(p, dad->full_name);
+#ifdef DEBUG
+                                if ((strlen(p) + l + 1) != allocl) {
+                                        DBG("%s: p: %d, l: %d, a: %d\n",
+                                            pathp, strlen(p), l, allocl);
+                                }
+#endif
+                                p += strlen(p);
+                        }
+                        *(p++) = '/';
+                        memcpy(p, pathp, l);
+                } else
+                        memcpy(np->full_name, pathp, l);
+                prev_pp = &np->properties;
+                **allnextpp = np;
+                *allnextpp = &np->allnext;
+                if (dad != NULL) {
+                        np->parent = dad;
+                        /* we temporarily use the next field as `last_child'*/
+                        if (dad->next == 0)
+                                dad->child = np;
+                        else
+                                dad->next->sibling = np;
+                        dad->next = np;
+                }
+                kref_init(&np->kref);
+        }
+        while(1) {
+                u32 sz, noff;
+                char *pname;
+
+                tag = *((u32 *)(*p));
+                if (tag == OF_DT_NOP) {
+                        *p += 4;
+                        continue;
+                }
+                if (tag != OF_DT_PROP)
+                        break;
+                *p += 4;
+                sz = *((u32 *)(*p));
+                noff = *((u32 *)((*p) + 4));
+                *p += 8;
+                if (initial_boot_params->version < 0x10)
+                        *p = _ALIGN(*p, sz >= 8 ? 8 : 4);
+
+                pname = find_flat_dt_string(noff);
+                if (pname == NULL) {
+                        printk("Can't find property name in list !\n");
+                        break;
+                }
+                if (strcmp(pname, "name") == 0)
+                        has_name = 1;
+                l = strlen(pname) + 1;
+                pp = unflatten_dt_alloc(&mem, sizeof(struct property),
+                                        __alignof__(struct property));
+                if (allnextpp) {
+                        if (strcmp(pname, "linux,phandle") == 0) {
+                                np->node = *((u32 *)*p);
+                                if (np->linux_phandle == 0)
+                                        np->linux_phandle = np->node;
+                        }
+                        if (strcmp(pname, "ibm,phandle") == 0)
+                                np->linux_phandle = *((u32 *)*p);
+                        pp->name = pname;
+                        pp->length = sz;
+                        pp->value = (void *)*p;
+                        *prev_pp = pp;
+                        prev_pp = &pp->next;
+                }
+                *p = _ALIGN((*p) + sz, 4);
+        }
+        /* with version 0x10 we may not have the name property, recreate
+         * it here from the unit name if absent
+         */
+        if (!has_name) {
+                char *p = pathp, *ps = pathp, *pa = NULL;
+                int sz;
+
+                while (*p) {
+                        if ((*p) == '@')
+                                pa = p;
+                        if ((*p) == '/')
+                                ps = p + 1;
+                        p++;
+                }
+                if (pa < ps)
+                        pa = p;
+                sz = (pa - ps) + 1;
+                pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
+                                        __alignof__(struct property));
+                if (allnextpp) {
+                        pp->name = "name";
+                        pp->length = sz;
+                        pp->value = (unsigned char *)(pp + 1);
+                        *prev_pp = pp;
+                        prev_pp = &pp->next;
+                        memcpy(pp->value, ps, sz - 1);
+                        ((char *)pp->value)[sz - 1] = 0;
+                        DBG("fixed up name for %s -> %s\n", pathp, pp->value);
+                }
+        }
+        if (allnextpp) {
+                *prev_pp = NULL;
+                np->name = get_property(np, "name", NULL);
+                np->type = get_property(np, "device_type", NULL);
+
+                if (!np->name)
+                        np->name = "<NULL>";
+                if (!np->type)
+                        np->type = "<NULL>";
+        }
+        while (tag == OF_DT_BEGIN_NODE) {
+                mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
+                tag = *((u32 *)(*p));
+        }
+        if (tag != OF_DT_END_NODE) {
+                printk("Weird tag at end of node: %x\n", tag);
+                return mem;
+        }
+        *p += 4;
+        return mem;
+}
+
+
+/**
+ * unflattens the device-tree passed by the firmware, creating the
+ * tree of struct device_node. It also fills the "name" and "type"
+ * pointers of the nodes so the normal device-tree walking functions
+ * can be used (this used to be done by finish_device_tree)
+ */
+void __init unflatten_device_tree(void)
+{
+        unsigned long start, mem, size;
+        struct device_node **allnextp = &allnodes;
+        char *p = NULL;
+        int l = 0;
+
+        DBG(" -> unflatten_device_tree()\n");
+
+        /* First pass, scan for size */
+        start = ((unsigned long)initial_boot_params) +
+                initial_boot_params->off_dt_struct;
+        size = unflatten_dt_node(0, &start, NULL, NULL, 0);
+        size = (size | 3) + 1;
+
+        DBG("  size is %lx, allocating...\n", size);
+
+        /* Allocate memory for the expanded device tree */
+        mem = lmb_alloc(size + 4, __alignof__(struct device_node));
+        if (!mem) {
+                DBG("Couldn't allocate memory with lmb_alloc()!\n");
+                panic("Couldn't allocate memory with lmb_alloc()!\n");
+        }
+        mem = (unsigned long) __va(mem);
+
+        ((u32 *)mem)[size / 4] = 0xdeadbeef;
+
+        DBG("  unflattening %lx...\n", mem);
+
+        /* Second pass, do actual unflattening */
+        start = ((unsigned long)initial_boot_params) +
+                initial_boot_params->off_dt_struct;
+        unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
+        if (*((u32 *)start) != OF_DT_END)
+                printk(KERN_WARNING "Weird tag at end of tree: %08x\n", *((u32 *)start));
+        if (((u32 *)mem)[size / 4] != 0xdeadbeef)
+                printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
+                       ((u32 *)mem)[size / 4] );
+        *allnextp = NULL;
+
+        /* Get pointer to OF "/chosen" node for use everywhere */
+        of_chosen = of_find_node_by_path("/chosen");
+        if (of_chosen == NULL)
+                of_chosen = of_find_node_by_path("/chosen@0");
+
+        /* Retreive command line */
+        if (of_chosen != NULL) {
+                p = (char *)get_property(of_chosen, "bootargs", &l);
+                if (p != NULL && l > 0)
+                        strlcpy(cmd_line, p, min(l, COMMAND_LINE_SIZE));
+        }
+#ifdef CONFIG_CMDLINE
+        if (l == 0 || (l == 1 && (*p) == 0))
+                strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif /* CONFIG_CMDLINE */
+
+        DBG("Command line is: %s\n", cmd_line);
+
+        DBG(" <- unflatten_device_tree()\n");
+}
+
+
+static int __init early_init_dt_scan_cpus(unsigned long node,
+                                          const char *uname, int depth, void *data)
+{
+        char *type = get_flat_dt_prop(node, "device_type", NULL);
+        u32 *prop;
+        unsigned long size = 0;
+
+        /* We are scanning "cpu" nodes only */
+        if (type == NULL || strcmp(type, "cpu") != 0)
+                return 0;
+
+#ifdef CONFIG_PPC_PSERIES
+        /* On LPAR, look for the first ibm,pft-size property for the  hash table size
+         */
+        if (systemcfg->platform == PLATFORM_PSERIES_LPAR && ppc64_pft_size == 0) {
+                u32 *pft_size;
+                pft_size = get_flat_dt_prop(node, "ibm,pft-size", NULL);
+                if (pft_size != NULL) {
+                        /* pft_size[0] is the NUMA CEC cookie */
+                        ppc64_pft_size = pft_size[1];
+                }
+        }
+#endif
+
+        boot_cpuid = 0;
+        boot_cpuid_phys = 0;
+        if (initial_boot_params && initial_boot_params->version >= 2) {
+                /* version 2 of the kexec param format adds the phys cpuid
+                 * of booted proc.
+                 */
+                boot_cpuid_phys = initial_boot_params->boot_cpuid_phys;
+        } else {
+                /* Check if it's the boot-cpu, set it's hw index now */
+                if (get_flat_dt_prop(node, "linux,boot-cpu", NULL) != NULL) {
+                        prop = get_flat_dt_prop(node, "reg", NULL);
+                        if (prop != NULL)
+                                boot_cpuid_phys = *prop;
+                }
+        }
+        set_hard_smp_processor_id(0, boot_cpuid_phys);
+
+#ifdef CONFIG_ALTIVEC
+        /* Check if we have a VMX and eventually update CPU features */
+        prop = (u32 *)get_flat_dt_prop(node, "ibm,vmx", &size);
+        if (prop && (*prop) > 0) {
+                cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC;
+                cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC;
+        }
+
+        /* Same goes for Apple's "altivec" property */
+        prop = (u32 *)get_flat_dt_prop(node, "altivec", NULL);
+        if (prop) {
+                cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC;
+                cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC;
+        }
+#endif /* CONFIG_ALTIVEC */
+
+#ifdef CONFIG_PPC_PSERIES
+        /*
+         * Check for an SMT capable CPU and set the CPU feature. We do
+         * this by looking at the size of the ibm,ppc-interrupt-server#s
+         * property
+         */
+        prop = (u32 *)get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s",
+                                       &size);
+        cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT;
+        if (prop && ((size / sizeof(u32)) > 1))
+                cur_cpu_spec->cpu_features |= CPU_FTR_SMT;
+#endif
+
+        return 0;
+}
+
+static int __init early_init_dt_scan_chosen(unsigned long node,
+                                            const char *uname, int depth, void *data)
+{
+        u32 *prop;
+        unsigned long *lprop;
+
+        DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+        if (depth != 1 ||
+            (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
+                return 0;
+
+        /* get platform type */
+        prop = (u32 *)get_flat_dt_prop(node, "linux,platform", NULL);
+        if (prop == NULL)
+                return 0;
+#ifdef CONFIG_PPC64
+        systemcfg->platform = *prop;
+#else
+#ifdef CONFIG_PPC_MULTIPLATFORM
+        _machine = *prop;
+#endif
+#endif
+
+#ifdef CONFIG_PPC64
+        /* check if iommu is forced on or off */
+        if (get_flat_dt_prop(node, "linux,iommu-off", NULL) != NULL)
+                iommu_is_off = 1;
+        if (get_flat_dt_prop(node, "linux,iommu-force-on", NULL) != NULL)
+                iommu_force_on = 1;
+#endif
+
+        lprop = get_flat_dt_prop(node, "linux,memory-limit", NULL);
+        if (lprop)
+                memory_limit = *lprop;
+
+#ifdef CONFIG_PPC64
+        lprop = get_flat_dt_prop(node, "linux,tce-alloc-start", NULL);
+        if (lprop)
+                tce_alloc_start = *lprop;
+        lprop = get_flat_dt_prop(node, "linux,tce-alloc-end", NULL);
+        if (lprop)
+                tce_alloc_end = *lprop;
+#endif
+
+#ifdef CONFIG_PPC_RTAS
+        /* To help early debugging via the front panel, we retreive a minimal
+         * set of RTAS infos now if available
+         */
+        {
+                u64 *basep, *entryp;
+
+                basep = get_flat_dt_prop(node, "linux,rtas-base", NULL);
+                entryp = get_flat_dt_prop(node, "linux,rtas-entry", NULL);
+                prop = get_flat_dt_prop(node, "linux,rtas-size", NULL);
+                if (basep && entryp && prop) {
+                        rtas.base = *basep;
+                        rtas.entry = *entryp;
+                        rtas.size = *prop;
+                }
+        }
+#endif /* CONFIG_PPC_RTAS */
+
+        /* break now */
+        return 1;
+}
+
+static int __init early_init_dt_scan_root(unsigned long node,
+                                          const char *uname, int depth, void *data)
+{
+        u32 *prop;
+
+        if (depth != 0)
+                return 0;
+
+        prop = get_flat_dt_prop(node, "#size-cells", NULL);
+        dt_root_size_cells = (prop == NULL) ? 1 : *prop;
+        DBG("dt_root_size_cells = %x\n", dt_root_size_cells);
+
+        prop = get_flat_dt_prop(node, "#address-cells", NULL);
+        dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
+        DBG("dt_root_addr_cells = %x\n", dt_root_addr_cells);
+        
+        /* break now */
+        return 1;
+}
+
+static unsigned long __init dt_mem_next_cell(int s, cell_t **cellp)
+{
+        cell_t *p = *cellp;
+        unsigned long r;
+
+        /* Ignore more than 2 cells */
+        while (s > sizeof(unsigned long) / 4) {
+                p++;
+                s--;
+        }
+        r = *p++;
+#ifdef CONFIG_PPC64
+        if (s > 1) {
+                r <<= 32;
+                r |= *(p++);
+                s--;
+        }
+#endif
+
+        *cellp = p;
+        return r;
+}
+
+
+static int __init early_init_dt_scan_memory(unsigned long node,
+                                            const char *uname, int depth, void *data)
+{
+        char *type = get_flat_dt_prop(node, "device_type", NULL);
+        cell_t *reg, *endp;
+        unsigned long l;
+
+        /* We are scanning "memory" nodes only */
+        if (type == NULL || strcmp(type, "memory") != 0)
+                return 0;
+
+        reg = (cell_t *)get_flat_dt_prop(node, "reg", &l);
+        if (reg == NULL)
+                return 0;
+
+        endp = reg + (l / sizeof(cell_t));
+
+        DBG("memory scan node %s ..., reg size %ld, data: %x %x %x %x, ...\n",
+            uname, l, reg[0], reg[1], reg[2], reg[3]);
+
+        while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
+                unsigned long base, size;
+
+                base = dt_mem_next_cell(dt_root_addr_cells, &reg);
+                size = dt_mem_next_cell(dt_root_size_cells, &reg);
+
+                if (size == 0)
+                        continue;
+                DBG(" - %lx ,  %lx\n", base, size);
+#ifdef CONFIG_PPC64
+                if (iommu_is_off) {
+                        if (base >= 0x80000000ul)
+                                continue;
+                        if ((base + size) > 0x80000000ul)
+                                size = 0x80000000ul - base;
+                }
+#endif
+                lmb_add(base, size);
+        }
+        return 0;
+}
+
+static void __init early_reserve_mem(void)
+{
+        unsigned long base, size;
+        unsigned long *reserve_map;
+
+        reserve_map = (unsigned long *)(((unsigned long)initial_boot_params) +
+                                        initial_boot_params->off_mem_rsvmap);
+        while (1) {
+                base = *(reserve_map++);
+                size = *(reserve_map++);
+                if (size == 0)
+                        break;
+                DBG("reserving: %lx -> %lx\n", base, size);
+                lmb_reserve(base, size);
+        }
+
+#if 0
+        DBG("memory reserved, lmbs :\n");
+        lmb_dump_all();
+#endif
+}
+
+void __init early_init_devtree(void *params)
+{
+        DBG(" -> early_init_devtree()\n");
+
+        /* Setup flat device-tree pointer */
+        initial_boot_params = params;
+
+        /* Retrieve various informations from the /chosen node of the
+         * device-tree, including the platform type, initrd location and
+         * size, TCE reserve, and more ...
+         */
+        scan_flat_dt(early_init_dt_scan_chosen, NULL);
+
+        /* Scan memory nodes and rebuild LMBs */
+        lmb_init();
+        scan_flat_dt(early_init_dt_scan_root, NULL);
+        scan_flat_dt(early_init_dt_scan_memory, NULL);
+        lmb_enforce_memory_limit(memory_limit);
+        lmb_analyze();
+#ifdef CONFIG_PPC64
+        systemcfg->physicalMemorySize = lmb_phys_mem_size();
+#endif
+        lmb_reserve(0, __pa(klimit));
+
+        DBG("Phys. mem: %lx\n", lmb_phys_mem_size());
+
+        /* Reserve LMB regions used by kernel, initrd, dt, etc... */
+        early_reserve_mem();
+
+        DBG("Scanning CPUs ...\n");
+
+        /* Retreive hash table size from flattened tree plus other
+         * CPU related informations (altivec support, boot CPU ID, ...)
+         */
+        scan_flat_dt(early_init_dt_scan_cpus, NULL);
+
+        DBG(" <- early_init_devtree()\n");
+}
+
+#undef printk
+
+int
+prom_n_addr_cells(struct device_node* np)
+{
+        int* ip;
+        do {
+                if (np->parent)
+                        np = np->parent;
+                ip = (int *) get_property(np, "#address-cells", NULL);
+                if (ip != NULL)
+                        return *ip;
+        } while (np->parent);
+        /* No #address-cells property for the root node, default to 1 */
+        return 1;
+}
+
+int
+prom_n_size_cells(struct device_node* np)
+{
+        int* ip;
+        do {
+                if (np->parent)
+                        np = np->parent;
+                ip = (int *) get_property(np, "#size-cells", NULL);
+                if (ip != NULL)
+                        return *ip;
+        } while (np->parent);
+        /* No #size-cells property for the root node, default to 1 */
+        return 1;
+}
+
+/**
+ * Work out the sense (active-low level / active-high edge)
+ * of each interrupt from the device tree.
+ */
+void __init prom_get_irq_senses(unsigned char *senses, int off, int max)
+{
+        struct device_node *np;
+        int i, j;
+
+        /* default to level-triggered */
+        memset(senses, IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE, max - off);
+
+        for (np = allnodes; np != 0; np = np->allnext) {
+                for (j = 0; j < np->n_intrs; j++) {
+                        i = np->intrs[j].line;
+                        if (i >= off && i < max)
+                                senses[i-off] = np->intrs[j].sense;
+                }
+        }
+}
+
+/**
+ * Construct and return a list of the device_nodes with a given name.
+ */
+struct device_node *find_devices(const char *name)
+{
+        struct device_node *head, **prevp, *np;
+
+        prevp = &head;
+        for (np = allnodes; np != 0; np = np->allnext) {
+                if (np->name != 0 && strcasecmp(np->name, name) == 0) {
+                        *prevp = np;
+                        prevp = &np->next;
+                }
+        }
+        *prevp = NULL;
+        return head;
+}
+EXPORT_SYMBOL(find_devices);
+
+/**
+ * Construct and return a list of the device_nodes with a given type.
+ */
+struct device_node *find_type_devices(const char *type)
+{
+        struct device_node *head, **prevp, *np;
+
+        prevp = &head;
+        for (np = allnodes; np != 0; np = np->allnext) {
+                if (np->type != 0 && strcasecmp(np->type, type) == 0) {
+                        *prevp = np;
+                        prevp = &np->next;
+                }
+        }
+        *prevp = NULL;
+        return head;
+}
+EXPORT_SYMBOL(find_type_devices);
+
+/**
+ * Returns all nodes linked together
+ */
+struct device_node *find_all_nodes(void)
+{
+        struct device_node *head, **prevp, *np;
+
+        prevp = &head;
+        for (np = allnodes; np != 0; np = np->allnext) {
+                *prevp = np;
+                prevp = &np->next;
+        }
+        *prevp = NULL;
+        return head;
+}
+EXPORT_SYMBOL(find_all_nodes);
+
+/** Checks if the given "compat" string matches one of the strings in
+ * the device's "compatible" property
+ */
+int device_is_compatible(struct device_node *device, const char *compat)
+{
+        const char* cp;
+        int cplen, l;
+
+        cp = (char *) get_property(device, "compatible", &cplen);
+        if (cp == NULL)
+                return 0;
+        while (cplen > 0) {
+                if (strncasecmp(cp, compat, strlen(compat)) == 0)
+                        return 1;
+                l = strlen(cp) + 1;
+                cp += l;
+                cplen -= l;
+        }
+
+        return 0;
+}
+EXPORT_SYMBOL(device_is_compatible);
+
+
+/**
+ * Indicates whether the root node has a given value in its
+ * compatible property.
+ */
+int machine_is_compatible(const char *compat)
+{
+        struct device_node *root;
+        int rc = 0;
+
+        root = of_find_node_by_path("/");
+        if (root) {
+                rc = device_is_compatible(root, compat);
+                of_node_put(root);
+        }
+        return rc;
+}
+EXPORT_SYMBOL(machine_is_compatible);
+
+/**
+ * Construct and return a list of the device_nodes with a given type
+ * and compatible property.
+ */
+struct device_node *find_compatible_devices(const char *type,
+                                            const char *compat)
+{
+        struct device_node *head, **prevp, *np;
+
+        prevp = &head;
+        for (np = allnodes; np != 0; np = np->allnext) {
+                if (type != NULL
+                    && !(np->type != 0 && strcasecmp(np->type, type) == 0))
+                        continue;
+                if (device_is_compatible(np, compat)) {
+                        *prevp = np;
+                        prevp = &np->next;
+                }
+        }
+        *prevp = NULL;
+        return head;
+}
+EXPORT_SYMBOL(find_compatible_devices);
+
+/**
+ * Find the device_node with a given full_name.
+ */
+struct device_node *find_path_device(const char *path)
+{
+        struct device_node *np;
+
+        for (np = allnodes; np != 0; np = np->allnext)
+                if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0)
+                        return np;
+        return NULL;
+}
+EXPORT_SYMBOL(find_path_device);
+
+/*******
+ *
+ * New implementation of the OF "find" APIs, return a refcounted
+ * object, call of_node_put() when done.  The device tree and list
+ * are protected by a rw_lock.
+ *
+ * Note that property management will need some locking as well,
+ * this isn't dealt with yet.
+ *
+ *******/
+
+/**
+ *      of_find_node_by_name - Find a node by its "name" property
+ *      @from:  The node to start searching from or NULL, the node
+ *              you pass will not be searched, only the next one
+ *              will; typically, you pass what the previous call
+ *              returned. of_node_put() will be called on it
+ *      @name:  The name string to match against
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_name(struct device_node *from,
+        const char *name)
+{
+        struct device_node *np;
+
+        read_lock(&devtree_lock);
+        np = from ? from->allnext : allnodes;
+        for (; np != 0; np = np->allnext)
+                if (np->name != 0 && strcasecmp(np->name, name) == 0
+                    && of_node_get(np))
+                        break;
+        if (from)
+                of_node_put(from);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_node_by_name);
+
+/**
+ *      of_find_node_by_type - Find a node by its "device_type" property
+ *      @from:  The node to start searching from or NULL, the node
+ *              you pass will not be searched, only the next one
+ *              will; typically, you pass what the previous call
+ *              returned. of_node_put() will be called on it
+ *      @name:  The type string to match against
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_type(struct device_node *from,
+        const char *type)
+{
+        struct device_node *np;
+
+        read_lock(&devtree_lock);
+        np = from ? from->allnext : allnodes;
+        for (; np != 0; np = np->allnext)
+                if (np->type != 0 && strcasecmp(np->type, type) == 0
+                    && of_node_get(np))
+                        break;
+        if (from)
+                of_node_put(from);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_node_by_type);
+
+/**
+ *      of_find_compatible_node - Find a node based on type and one of the
+ *                                tokens in its "compatible" property
+ *      @from:          The node to start searching from or NULL, the node
+ *                      you pass will not be searched, only the next one
+ *                      will; typically, you pass what the previous call
+ *                      returned. of_node_put() will be called on it
+ *      @type:          The type string to match "device_type" or NULL to ignore
+ *      @compatible:    The string to match to one of the tokens in the device
+ *                      "compatible" list.
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_find_compatible_node(struct device_node *from,
+        const char *type, const char *compatible)
+{
+        struct device_node *np;
+
+        read_lock(&devtree_lock);
+        np = from ? from->allnext : allnodes;
+        for (; np != 0; np = np->allnext) {
+                if (type != NULL
+                    && !(np->type != 0 && strcasecmp(np->type, type) == 0))
+                        continue;
+                if (device_is_compatible(np, compatible) && of_node_get(np))
+                        break;
+        }
+        if (from)
+                of_node_put(from);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_compatible_node);
+
+/**
+ *      of_find_node_by_path - Find a node matching a full OF path
+ *      @path:  The full path to match
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_path(const char *path)
+{
+        struct device_node *np = allnodes;
+
+        read_lock(&devtree_lock);
+        for (; np != 0; np = np->allnext) {
+                if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0
+                    && of_node_get(np))
+                        break;
+        }
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_node_by_path);
+
+/**
+ *      of_find_node_by_phandle - Find a node given a phandle
+ *      @handle:        phandle of the node to find
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_phandle(phandle handle)
+{
+        struct device_node *np;
+
+        read_lock(&devtree_lock);
+        for (np = allnodes; np != 0; np = np->allnext)
+                if (np->linux_phandle == handle)
+                        break;
+        if (np)
+                of_node_get(np);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_node_by_phandle);
+
+/**
+ *      of_find_all_nodes - Get next node in global list
+ *      @prev:  Previous node or NULL to start iteration
+ *              of_node_put() will be called on it
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_find_all_nodes(struct device_node *prev)
+{
+        struct device_node *np;
+
+        read_lock(&devtree_lock);
+        np = prev ? prev->allnext : allnodes;
+        for (; np != 0; np = np->allnext)
+                if (of_node_get(np))
+                        break;
+        if (prev)
+                of_node_put(prev);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_all_nodes);
+
+/**
+ *      of_get_parent - Get a node's parent if any
+ *      @node:  Node to get parent
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_get_parent(const struct device_node *node)
+{
+        struct device_node *np;
+
+        if (!node)
+                return NULL;
+
+        read_lock(&devtree_lock);
+        np = of_node_get(node->parent);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_get_parent);
+
+/**
+ *      of_get_next_child - Iterate a node childs
+ *      @node:  parent node
+ *      @prev:  previous child of the parent node, or NULL to get first
+ *
+ *      Returns a node pointer with refcount incremented, use
+ *      of_node_put() on it when done.
+ */
+struct device_node *of_get_next_child(const struct device_node *node,
+        struct device_node *prev)
+{
+        struct device_node *next;
+
+        read_lock(&devtree_lock);
+        next = prev ? prev->sibling : node->child;
+        for (; next != 0; next = next->sibling)
+                if (of_node_get(next))
+                        break;
+        if (prev)
+                of_node_put(prev);
+        read_unlock(&devtree_lock);
+        return next;
+}
+EXPORT_SYMBOL(of_get_next_child);
+
+/**
+ *      of_node_get - Increment refcount of a node
+ *      @node:  Node to inc refcount, NULL is supported to
+ *              simplify writing of callers
+ *
+ *      Returns node.
+ */
+struct device_node *of_node_get(struct device_node *node)
+{
+        if (node)
+                kref_get(&node->kref);
+        return node;
+}
+EXPORT_SYMBOL(of_node_get);
+
+static inline struct device_node * kref_to_device_node(struct kref *kref)
+{
+        return container_of(kref, struct device_node, kref);
+}
+
+/**
+ *      of_node_release - release a dynamically allocated node
+ *      @kref:  kref element of the node to be released
+ *
+ *      In of_node_put() this function is passed to kref_put()
+ *      as the destructor.
+ */
+static void of_node_release(struct kref *kref)
+{
+        struct device_node *node = kref_to_device_node(kref);
+        struct property *prop = node->properties;
+
+        if (!OF_IS_DYNAMIC(node))
+                return;
+        while (prop) {
+                struct property *next = prop->next;
+                kfree(prop->name);
+                kfree(prop->value);
+                kfree(prop);
+                prop = next;
+        }
+        kfree(node->intrs);
+        kfree(node->addrs);
+        kfree(node->full_name);
+        kfree(node->data);
+        kfree(node);
+}
+
+/**
+ *      of_node_put - Decrement refcount of a node
+ *      @node:  Node to dec refcount, NULL is supported to
+ *              simplify writing of callers
+ *
+ */
+void of_node_put(struct device_node *node)
+{
+        if (node)
+                kref_put(&node->kref, of_node_release);
+}
+EXPORT_SYMBOL(of_node_put);
+
+/*
+ * Plug a device node into the tree and global list.
+ */
+void of_attach_node(struct device_node *np)
+{
+        write_lock(&devtree_lock);
+        np->sibling = np->parent->child;
+        np->allnext = allnodes;
+        np->parent->child = np;
+        allnodes = np;
+        write_unlock(&devtree_lock);
+}
+
+/*
+ * "Unplug" a node from the device tree.  The caller must hold
+ * a reference to the node.  The memory associated with the node
+ * is not freed until its refcount goes to zero.
+ */
+void of_detach_node(const struct device_node *np)
+{
+        struct device_node *parent;
+
+        write_lock(&devtree_lock);
+
+        parent = np->parent;
+
+        if (allnodes == np)
+                allnodes = np->allnext;
+        else {
+                struct device_node *prev;
+                for (prev = allnodes;
+                     prev->allnext != np;
+                     prev = prev->allnext)
+                        ;
+                prev->allnext = np->allnext;
+        }
+
+        if (parent->child == np)
+                parent->child = np->sibling;
+        else {
+                struct device_node *prevsib;
+                for (prevsib = np->parent->child;
+                     prevsib->sibling != np;
+                     prevsib = prevsib->sibling)
+                        ;
+                prevsib->sibling = np->sibling;
+        }
+
+        write_unlock(&devtree_lock);
+}
+
+#ifdef CONFIG_PPC_PSERIES
+/*
+ * Fix up the uninitialized fields in a new device node:
+ * name, type, n_addrs, addrs, n_intrs, intrs, and pci-specific fields
+ *
+ * A lot of boot-time code is duplicated here, because functions such
+ * as finish_node_interrupts, interpret_pci_props, etc. cannot use the
+ * slab allocator.
+ *
+ * This should probably be split up into smaller chunks.
+ */
+
+static int of_finish_dynamic_node(struct device_node *node,
+                                  unsigned long *unused1, int unused2,
+                                  int unused3, int unused4)
+{
+        struct device_node *parent = of_get_parent(node);
+        int err = 0;
+        phandle *ibm_phandle;
+
+        node->name = get_property(node, "name", NULL);
+        node->type = get_property(node, "device_type", NULL);
+
+        if (!parent) {
+                err = -ENODEV;
+                goto out;
+        }
+
+        /* We don't support that function on PowerMac, at least
+         * not yet
+         */
+        if (systemcfg->platform == PLATFORM_POWERMAC)
+                return -ENODEV;
+
+        /* fix up new node's linux_phandle field */
+        if ((ibm_phandle = (unsigned int *)get_property(node, "ibm,phandle", NULL)))
+                node->linux_phandle = *ibm_phandle;
+
+out:
+        of_node_put(parent);
+        return err;
+}
+
+static int prom_reconfig_notifier(struct notifier_block *nb,
+                                  unsigned long action, void *node)
+{
+        int err;
+
+        switch (action) {
+        case PSERIES_RECONFIG_ADD:
+                err = finish_node(node, NULL, of_finish_dynamic_node, 0, 0, 0);
+                if (err < 0) {
+                        printk(KERN_ERR "finish_node returned %d\n", err);
+                        err = NOTIFY_BAD;
+                }
+                break;
+        default:
+                err = NOTIFY_DONE;
+                break;
+        }
+        return err;
+}
+
+static struct notifier_block prom_reconfig_nb = {
+        .notifier_call = prom_reconfig_notifier,
+        .priority = 10, /* This one needs to run first */
+};
+
+static int __init prom_reconfig_setup(void)
+{
+        return pSeries_reconfig_notifier_register(&prom_reconfig_nb);
+}
+__initcall(prom_reconfig_setup);
+#endif
+
+/*
+ * Find a property with a given name for a given node
+ * and return the value.
+ */
+unsigned char *get_property(struct device_node *np, const char *name,
+                            int *lenp)
+{
+        struct property *pp;
+
+        for (pp = np->properties; pp != 0; pp = pp->next)
+                if (strcmp(pp->name, name) == 0) {
+                        if (lenp != 0)
+                                *lenp = pp->length;
+                        return pp->value;
+                }
+        return NULL;
+}
+EXPORT_SYMBOL(get_property);
+
+/*
+ * Add a property to a node
+ */
+void prom_add_property(struct device_node* np, struct property* prop)
+{
+        struct property **next = &np->properties;
+
+        prop->next = NULL;      
+        while (*next)
+                next = &(*next)->next;
+        *next = prop;
+}
+
+/* I quickly hacked that one, check against spec ! */
+static inline unsigned long
+bus_space_to_resource_flags(unsigned int bus_space)
+{
+        u8 space = (bus_space >> 24) & 0xf;
+        if (space == 0)
+                space = 0x02;
+        if (space == 0x02)
+                return IORESOURCE_MEM;
+        else if (space == 0x01)
+                return IORESOURCE_IO;
+        else {
+                printk(KERN_WARNING "prom.c: bus_space_to_resource_flags(), space: %x\n",
+                        bus_space);
+                return 0;
+        }
+}
+
+#ifdef CONFIG_PCI
+static struct resource *find_parent_pci_resource(struct pci_dev* pdev,
+                                                 struct address_range *range)
+{
+        unsigned long mask;
+        int i;
+
+        /* Check this one */
+        mask = bus_space_to_resource_flags(range->space);
+        for (i=0; i<DEVICE_COUNT_RESOURCE; i++) {
+                if ((pdev->resource[i].flags & mask) == mask &&
+                        pdev->resource[i].start <= range->address &&
+                        pdev->resource[i].end > range->address) {
+                                if ((range->address + range->size - 1) > pdev->resource[i].end) {
+                                        /* Add better message */
+                                        printk(KERN_WARNING "PCI/OF resource overlap !\n");
+                                        return NULL;
+                                }
+                                break;
+                        }
+        }
+        if (i == DEVICE_COUNT_RESOURCE)
+                return NULL;
+        return &pdev->resource[i];
+}
+
+/*
+ * Request an OF device resource. Currently handles child of PCI devices,
+ * or other nodes attached to the root node. Ultimately, put some
+ * link to resources in the OF node.
+ */
+struct resource *request_OF_resource(struct device_node* node, int index,
+                                     const char* name_postfix)
+{
+        struct pci_dev* pcidev;
+        u8 pci_bus, pci_devfn;
+        unsigned long iomask;
+        struct device_node* nd;
+        struct resource* parent;
+        struct resource *res = NULL;
+        int nlen, plen;
+
+        if (index >= node->n_addrs)
+                goto fail;
+
+        /* Sanity check on bus space */
+        iomask = bus_space_to_resource_flags(node->addrs[index].space);
+        if (iomask & IORESOURCE_MEM)
+                parent = &iomem_resource;
+        else if (iomask & IORESOURCE_IO)
+                parent = &ioport_resource;
+        else
+                goto fail;
+
+        /* Find a PCI parent if any */
+        nd = node;
+        pcidev = NULL;
+        while (nd) {
+                if (!pci_device_from_OF_node(nd, &pci_bus, &pci_devfn))
+                        pcidev = pci_find_slot(pci_bus, pci_devfn);
+                if (pcidev) break;
+                nd = nd->parent;
+        }
+        if (pcidev)
+                parent = find_parent_pci_resource(pcidev, &node->addrs[index]);
+        if (!parent) {
+                printk(KERN_WARNING "request_OF_resource(%s), parent not found\n",
+                        node->name);
+                goto fail;
+        }
+
+        res = __request_region(parent, node->addrs[index].address,
+                               node->addrs[index].size, NULL);
+        if (!res)
+                goto fail;
+        nlen = strlen(node->name);
+        plen = name_postfix ? strlen(name_postfix) : 0;
+        res->name = (const char *)kmalloc(nlen+plen+1, GFP_KERNEL);
+        if (res->name) {
+                strcpy((char *)res->name, node->name);
+                if (plen)
+                        strcpy((char *)res->name+nlen, name_postfix);
+        }
+        return res;
+fail:
+        return NULL;
+}
+EXPORT_SYMBOL(request_OF_resource);
+
+int release_OF_resource(struct device_node *node, int index)
+{
+        struct pci_dev* pcidev;
+        u8 pci_bus, pci_devfn;
+        unsigned long iomask, start, end;
+        struct device_node* nd;
+        struct resource* parent;
+        struct resource *res = NULL;
+
+        if (index >= node->n_addrs)
+                return -EINVAL;
+
+        /* Sanity check on bus space */
+        iomask = bus_space_to_resource_flags(node->addrs[index].space);
+        if (iomask & IORESOURCE_MEM)
+                parent = &iomem_resource;
+        else if (iomask & IORESOURCE_IO)
+                parent = &ioport_resource;
+        else
+                return -EINVAL;
+
+        /* Find a PCI parent if any */
+        nd = node;
+        pcidev = NULL;
+        while(nd) {
+                if (!pci_device_from_OF_node(nd, &pci_bus, &pci_devfn))
+                        pcidev = pci_find_slot(pci_bus, pci_devfn);
+                if (pcidev) break;
+                nd = nd->parent;
+        }
+        if (pcidev)
+                parent = find_parent_pci_resource(pcidev, &node->addrs[index]);
+        if (!parent) {
+                printk(KERN_WARNING "release_OF_resource(%s), parent not found\n",
+                        node->name);
+                return -ENODEV;
+        }
+
+        /* Find us in the parent and its childs */
+        res = parent->child;
+        start = node->addrs[index].address;
+        end = start + node->addrs[index].size - 1;
+        while (res) {
+                if (res->start == start && res->end == end &&
+                    (res->flags & IORESOURCE_BUSY))
+                        break;
+                if (res->start <= start && res->end >= end)
+                        res = res->child;
+                else
+                        res = res->sibling;
+        }
+        if (!res)
+                return -ENODEV;
+
+        if (res->name) {
+                kfree(res->name);
+                res->name = NULL;
+        }
+        release_resource(res);
+        kfree(res);
+
+        return 0;
+}
+EXPORT_SYMBOL(release_OF_resource);
+#endif /* CONFIG_PCI */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
new file mode 100644
index 000000000000..9750b3cd8ecd
--- /dev/null
+++ b/arch/powerpc/kernel/prom_init.c
@@ -0,0 +1,2109 @@
+/*
+ * Procedures for interfacing to Open Firmware.
+ *
+ * Paul Mackerras       August 1996.
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ * 
+ *  Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
+ *    {engebret|bergner}@us.ibm.com 
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#undef DEBUG_PROM
+
+#include <stdarg.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/threads.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+#include <linux/stringify.h>
+#include <linux/delay.h>
+#include <linux/initrd.h>
+#include <linux/bitops.h>
+#include <asm/prom.h>
+#include <asm/rtas.h>
+#include <asm/page.h>
+#include <asm/processor.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/smp.h>
+#include <asm/system.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/pci.h>
+#include <asm/iommu.h>
+#include <asm/btext.h>
+#include <asm/sections.h>
+#include <asm/machdep.h>
+
+#ifdef CONFIG_LOGO_LINUX_CLUT224
+#include <linux/linux_logo.h>
+extern const struct linux_logo logo_linux_clut224;
+#endif
+
+/*
+ * Properties whose value is longer than this get excluded from our
+ * copy of the device tree. This value does need to be big enough to
+ * ensure that we don't lose things like the interrupt-map property
+ * on a PCI-PCI bridge.
+ */
+#define MAX_PROPERTY_LENGTH     (1UL * 1024 * 1024)
+
+/*
+ * Eventually bump that one up
+ */
+#define DEVTREE_CHUNK_SIZE      0x100000
+
+/*
+ * This is the size of the local memory reserve map that gets copied
+ * into the boot params passed to the kernel. That size is totally
+ * flexible as the kernel just reads the list until it encounters an
+ * entry with size 0, so it can be changed without breaking binary
+ * compatibility
+ */
+#define MEM_RESERVE_MAP_SIZE    8
+
+/*
+ * prom_init() is called very early on, before the kernel text
+ * and data have been mapped to KERNELBASE.  At this point the code
+ * is running at whatever address it has been loaded at.
+ * On ppc32 we compile with -mrelocatable, which means that references
+ * to extern and static variables get relocated automatically.
+ * On ppc64 we have to relocate the references explicitly with
+ * RELOC.  (Note that strings count as static variables.)
+ *
+ * Because OF may have mapped I/O devices into the area starting at
+ * KERNELBASE, particularly on CHRP machines, we can't safely call
+ * OF once the kernel has been mapped to KERNELBASE.  Therefore all
+ * OF calls must be done within prom_init().
+ *
+ * ADDR is used in calls to call_prom.  The 4th and following
+ * arguments to call_prom should be 32-bit values.
+ * On ppc64, 64 bit values are truncated to 32 bits (and
+ * fortunately don't get interpreted as two arguments).
+ */
+#ifdef CONFIG_PPC64
+#define RELOC(x)        (*PTRRELOC(&(x)))
+#define ADDR(x)         (u32) add_reloc_offset((unsigned long)(x))
+#else
+#define RELOC(x)        (x)
+#define ADDR(x)         (u32) (x)
+#endif
+
+#define PROM_BUG() do {                                         \
+        prom_printf("kernel BUG at %s line 0x%x!\n",            \
+                    RELOC(__FILE__), __LINE__);                 \
+        __asm__ __volatile__(".long " BUG_ILLEGAL_INSTR);       \
+} while (0)
+
+#ifdef DEBUG_PROM
+#define prom_debug(x...)        prom_printf(x)
+#else
+#define prom_debug(x...)
+#endif
+
+#ifdef CONFIG_PPC32
+#define PLATFORM_POWERMAC       _MACH_Pmac
+#define PLATFORM_CHRP           _MACH_chrp
+#endif
+
+
+typedef u32 prom_arg_t;
+
+struct prom_args {
+        u32 service;
+        u32 nargs;
+        u32 nret;
+        prom_arg_t args[10];
+};
+
+struct prom_t {
+        ihandle root;
+        ihandle chosen;
+        int cpu;
+        ihandle stdout;
+        ihandle mmumap;
+};
+
+struct mem_map_entry {
+        unsigned long   base;
+        unsigned long   size;
+};
+
+typedef u32 cell_t;
+
+extern void __start(unsigned long r3, unsigned long r4, unsigned long r5);
+
+#ifdef CONFIG_PPC64
+extern int enter_prom(struct prom_args *args, unsigned long entry);
+#else
+static inline int enter_prom(struct prom_args *args, unsigned long entry)
+{
+        return ((int (*)(struct prom_args *))entry)(args);
+}
+#endif
+
+extern void copy_and_flush(unsigned long dest, unsigned long src,
+                           unsigned long size, unsigned long offset);
+
+/* prom structure */
+static struct prom_t __initdata prom;
+
+static unsigned long prom_entry __initdata;
+
+#define PROM_SCRATCH_SIZE 256
+
+static char __initdata of_stdout_device[256];
+static char __initdata prom_scratch[PROM_SCRATCH_SIZE];
+
+static unsigned long __initdata dt_header_start;
+static unsigned long __initdata dt_struct_start, dt_struct_end;
+static unsigned long __initdata dt_string_start, dt_string_end;
+
+static unsigned long __initdata prom_initrd_start, prom_initrd_end;
+
+#ifdef CONFIG_PPC64
+static int __initdata iommu_force_on;
+static int __initdata ppc64_iommu_off;
+static unsigned long __initdata prom_tce_alloc_start;
+static unsigned long __initdata prom_tce_alloc_end;
+#endif
+
+static int __initdata of_platform;
+
+static char __initdata prom_cmd_line[COMMAND_LINE_SIZE];
+
+static unsigned long __initdata prom_memory_limit;
+
+static unsigned long __initdata alloc_top;
+static unsigned long __initdata alloc_top_high;
+static unsigned long __initdata alloc_bottom;
+static unsigned long __initdata rmo_top;
+static unsigned long __initdata ram_top;
+
+static struct mem_map_entry __initdata mem_reserve_map[MEM_RESERVE_MAP_SIZE];
+static int __initdata mem_reserve_cnt;
+
+static cell_t __initdata regbuf[1024];
+
+
+#define MAX_CPU_THREADS 2
+
+/* TO GO */
+#ifdef CONFIG_HMT
+struct {
+        unsigned int pir;
+        unsigned int threadid;
+} hmt_thread_data[NR_CPUS];
+#endif /* CONFIG_HMT */
+
+/*
+ * Error results ... some OF calls will return "-1" on error, some
+ * will return 0, some will return either. To simplify, here are
+ * macros to use with any ihandle or phandle return value to check if
+ * it is valid
+ */
+
+#define PROM_ERROR              (-1u)
+#define PHANDLE_VALID(p)        ((p) != 0 && (p) != PROM_ERROR)
+#define IHANDLE_VALID(i)        ((i) != 0 && (i) != PROM_ERROR)
+
+
+/* This is the one and *ONLY* place where we actually call open
+ * firmware.
+ */
+
+static int __init call_prom(const char *service, int nargs, int nret, ...)
+{
+        int i;
+        struct prom_args args;
+        va_list list;
+
+        args.service = ADDR(service);
+        args.nargs = nargs;
+        args.nret = nret;
+
+        va_start(list, nret);
+        for (i = 0; i < nargs; i++)
+                args.args[i] = va_arg(list, prom_arg_t);
+        va_end(list);
+
+        for (i = 0; i < nret; i++)
+                args.args[nargs+i] = 0;
+
+        if (enter_prom(&args, RELOC(prom_entry)) < 0)
+                return PROM_ERROR;
+
+        return (nret > 0) ? args.args[nargs] : 0;
+}
+
+static int __init call_prom_ret(const char *service, int nargs, int nret,
+                                prom_arg_t *rets, ...)
+{
+        int i;
+        struct prom_args args;
+        va_list list;
+
+        args.service = ADDR(service);
+        args.nargs = nargs;
+        args.nret = nret;
+
+        va_start(list, rets);
+        for (i = 0; i < nargs; i++)
+                args.args[i] = va_arg(list, prom_arg_t);
+        va_end(list);
+
+        for (i = 0; i < nret; i++)
+                rets[nargs+i] = 0;
+
+        if (enter_prom(&args, RELOC(prom_entry)) < 0)
+                return PROM_ERROR;
+
+        if (rets != NULL)
+                for (i = 1; i < nret; ++i)
+                        rets[i-1] = args.args[nargs+i];
+
+        return (nret > 0) ? args.args[nargs] : 0;
+}
+
+
+static void __init prom_print(const char *msg)
+{
+        const char *p, *q;
+        struct prom_t *_prom = &RELOC(prom);
+
+        if (_prom->stdout == 0)
+                return;
+
+        for (p = msg; *p != 0; p = q) {
+                for (q = p; *q != 0 && *q != '\n'; ++q)
+                        ;
+                if (q > p)
+                        call_prom("write", 3, 1, _prom->stdout, p, q - p);
+                if (*q == 0)
+                        break;
+                ++q;
+                call_prom("write", 3, 1, _prom->stdout, ADDR("\r\n"), 2);
+        }
+}
+
+
+static void __init prom_print_hex(unsigned long val)
+{
+        int i, nibbles = sizeof(val)*2;
+        char buf[sizeof(val)*2+1];
+        struct prom_t *_prom = &RELOC(prom);
+
+        for (i = nibbles-1;  i >= 0;  i--) {
+                buf[i] = (val & 0xf) + '0';
+                if (buf[i] > '9')
+                        buf[i] += ('a'-'0'-10);
+                val >>= 4;
+        }
+        buf[nibbles] = '\0';
+        call_prom("write", 3, 1, _prom->stdout, buf, nibbles);
+}
+
+
+static void __init prom_printf(const char *format, ...)
+{
+        const char *p, *q, *s;
+        va_list args;
+        unsigned long v;
+        struct prom_t *_prom = &RELOC(prom);
+
+        va_start(args, format);
+#ifdef CONFIG_PPC64
+        format = PTRRELOC(format);
+#endif
+        for (p = format; *p != 0; p = q) {
+                for (q = p; *q != 0 && *q != '\n' && *q != '%'; ++q)
+                        ;
+                if (q > p)
+                        call_prom("write", 3, 1, _prom->stdout, p, q - p);
+                if (*q == 0)
+                        break;
+                if (*q == '\n') {
+                        ++q;
+                        call_prom("write", 3, 1, _prom->stdout,
+                                  ADDR("\r\n"), 2);
+                        continue;
+                }
+                ++q;
+                if (*q == 0)
+                        break;
+                switch (*q) {
+                case 's':
+                        ++q;
+                        s = va_arg(args, const char *);
+                        prom_print(s);
+                        break;
+                case 'x':
+                        ++q;
+                        v = va_arg(args, unsigned long);
+                        prom_print_hex(v);
+                        break;
+                }
+        }
+}
+
+
+static unsigned int __init prom_claim(unsigned long virt, unsigned long size,
+                                unsigned long align)
+{
+        int ret;
+        struct prom_t *_prom = &RELOC(prom);
+
+        ret = call_prom("claim", 3, 1, (prom_arg_t)virt, (prom_arg_t)size,
+                        (prom_arg_t)align);
+        if (ret != -1 && _prom->mmumap != 0)
+                /* old pmacs need us to map as well */
+                call_prom("call-method", 6, 1,
+                          ADDR("map"), _prom->mmumap, 0, size, virt, virt);
+        return ret;
+}
+
+static void __init __attribute__((noreturn)) prom_panic(const char *reason)
+{
+#ifdef CONFIG_PPC64
+        reason = PTRRELOC(reason);
+#endif
+        prom_print(reason);
+        /* ToDo: should put up an SRC here on p/iSeries */
+        call_prom("exit", 0, 0);
+
+        for (;;)                        /* should never get here */
+                ;
+}
+
+
+static int __init prom_next_node(phandle *nodep)
+{
+        phandle node;
+
+        if ((node = *nodep) != 0
+            && (*nodep = call_prom("child", 1, 1, node)) != 0)
+                return 1;
+        if ((*nodep = call_prom("peer", 1, 1, node)) != 0)
+                return 1;
+        for (;;) {
+                if ((node = call_prom("parent", 1, 1, node)) == 0)
+                        return 0;
+                if ((*nodep = call_prom("peer", 1, 1, node)) != 0)
+                        return 1;
+        }
+}
+
+static int __init prom_getprop(phandle node, const char *pname,
+                               void *value, size_t valuelen)
+{
+        return call_prom("getprop", 4, 1, node, ADDR(pname),
+                         (u32)(unsigned long) value, (u32) valuelen);
+}
+
+static int __init prom_getproplen(phandle node, const char *pname)
+{
+        return call_prom("getproplen", 2, 1, node, ADDR(pname));
+}
+
+static int __init prom_setprop(phandle node, const char *pname,
+                               void *value, size_t valuelen)
+{
+        return call_prom("setprop", 4, 1, node, ADDR(pname),
+                         (u32)(unsigned long) value, (u32) valuelen);
+}
+
+/* We can't use the standard versions because of RELOC headaches. */
+#define isxdigit(c)     (('0' <= (c) && (c) <= '9') \
+                         || ('a' <= (c) && (c) <= 'f') \
+                         || ('A' <= (c) && (c) <= 'F'))
+
+#define isdigit(c)      ('0' <= (c) && (c) <= '9')
+#define islower(c)      ('a' <= (c) && (c) <= 'z')
+#define toupper(c)      (islower(c) ? ((c) - 'a' + 'A') : (c))
+
+unsigned long prom_strtoul(const char *cp, const char **endp)
+{
+        unsigned long result = 0, base = 10, value;
+
+        if (*cp == '0') {
+                base = 8;
+                cp++;
+                if (toupper(*cp) == 'X') {
+                        cp++;
+                        base = 16;
+                }
+        }
+
+        while (isxdigit(*cp) &&
+               (value = isdigit(*cp) ? *cp - '0' : toupper(*cp) - 'A' + 10) < base) {
+                result = result * base + value;
+                cp++;
+        }
+
+        if (endp)
+                *endp = cp;
+
+        return result;
+}
+
+unsigned long prom_memparse(const char *ptr, const char **retptr)
+{
+        unsigned long ret = prom_strtoul(ptr, retptr);
+        int shift = 0;
+
+        /*
+         * We can't use a switch here because GCC *may* generate a
+         * jump table which won't work, because we're not running at
+         * the address we're linked at.
+         */
+        if ('G' == **retptr || 'g' == **retptr)
+                shift = 30;
+
+        if ('M' == **retptr || 'm' == **retptr)
+                shift = 20;
+
+        if ('K' == **retptr || 'k' == **retptr)
+                shift = 10;
+
+        if (shift) {
+                ret <<= shift;
+                (*retptr)++;
+        }
+
+        return ret;
+}
+
+/*
+ * Early parsing of the command line passed to the kernel, used for
+ * "mem=x" and the options that affect the iommu
+ */
+static void __init early_cmdline_parse(void)
+{
+        struct prom_t *_prom = &RELOC(prom);
+        char *opt, *p;
+        int l = 0;
+
+        RELOC(prom_cmd_line[0]) = 0;
+        p = RELOC(prom_cmd_line);
+        if ((long)_prom->chosen > 0)
+                l = prom_getprop(_prom->chosen, "bootargs", p, COMMAND_LINE_SIZE-1);
+#ifdef CONFIG_CMDLINE
+        if (l == 0) /* dbl check */
+                strlcpy(RELOC(prom_cmd_line),
+                        RELOC(CONFIG_CMDLINE), sizeof(prom_cmd_line));
+#endif /* CONFIG_CMDLINE */
+        prom_printf("command line: %s\n", RELOC(prom_cmd_line));
+
+#ifdef CONFIG_PPC64
+        opt = strstr(RELOC(prom_cmd_line), RELOC("iommu="));
+        if (opt) {
+                prom_printf("iommu opt is: %s\n", opt);
+                opt += 6;
+                while (*opt && *opt == ' ')
+                        opt++;
+                if (!strncmp(opt, RELOC("off"), 3))
+                        RELOC(ppc64_iommu_off) = 1;
+                else if (!strncmp(opt, RELOC("force"), 5))
+                        RELOC(iommu_force_on) = 1;
+        }
+#endif
+
+        opt = strstr(RELOC(prom_cmd_line), RELOC("mem="));
+        if (opt) {
+                opt += 4;
+                RELOC(prom_memory_limit) = prom_memparse(opt, (const char **)&opt);
+#ifdef CONFIG_PPC64
+                /* Align to 16 MB == size of ppc64 large page */
+                RELOC(prom_memory_limit) = ALIGN(RELOC(prom_memory_limit), 0x1000000);
+#endif
+        }
+}
+
+#ifdef CONFIG_PPC_PSERIES
+/*
+ * To tell the firmware what our capabilities are, we have to pass
+ * it a fake 32-bit ELF header containing a couple of PT_NOTE sections
+ * that contain structures that contain the actual values.
+ */
+static struct fake_elf {
+        Elf32_Ehdr      elfhdr;
+        Elf32_Phdr      phdr[2];
+        struct chrpnote {
+                u32     namesz;
+                u32     descsz;
+                u32     type;
+                char    name[8];        /* "PowerPC" */
+                struct chrpdesc {
+                        u32     real_mode;
+                        u32     real_base;
+                        u32     real_size;
+                        u32     virt_base;
+                        u32     virt_size;
+                        u32     load_base;
+                } chrpdesc;
+        } chrpnote;
+        struct rpanote {
+                u32     namesz;
+                u32     descsz;
+                u32     type;
+                char    name[24];       /* "IBM,RPA-Client-Config" */
+                struct rpadesc {
+                        u32     lpar_affinity;
+                        u32     min_rmo_size;
+                        u32     min_rmo_percent;
+                        u32     max_pft_size;
+                        u32     splpar;
+                        u32     min_load;
+                        u32     new_mem_def;
+                        u32     ignore_me;
+                } rpadesc;
+        } rpanote;
+} fake_elf = {
+        .elfhdr = {
+                .e_ident = { 0x7f, 'E', 'L', 'F',
+                             ELFCLASS32, ELFDATA2MSB, EV_CURRENT },
+                .e_type = ET_EXEC,      /* yeah right */
+                .e_machine = EM_PPC,
+                .e_version = EV_CURRENT,
+                .e_phoff = offsetof(struct fake_elf, phdr),
+                .e_phentsize = sizeof(Elf32_Phdr),
+                .e_phnum = 2
+        },
+        .phdr = {
+                [0] = {
+                        .p_type = PT_NOTE,
+                        .p_offset = offsetof(struct fake_elf, chrpnote),
+                        .p_filesz = sizeof(struct chrpnote)
+                }, [1] = {
+                        .p_type = PT_NOTE,
+                        .p_offset = offsetof(struct fake_elf, rpanote),
+                        .p_filesz = sizeof(struct rpanote)
+                }
+        },
+        .chrpnote = {
+                .namesz = sizeof("PowerPC"),
+                .descsz = sizeof(struct chrpdesc),
+                .type = 0x1275,
+                .name = "PowerPC",
+                .chrpdesc = {
+                        .real_mode = ~0U,       /* ~0 means "don't care" */
+                        .real_base = ~0U,
+                        .real_size = ~0U,
+                        .virt_base = ~0U,
+                        .virt_size = ~0U,
+                        .load_base = ~0U
+                },
+        },
+        .rpanote = {
+                .namesz = sizeof("IBM,RPA-Client-Config"),
+                .descsz = sizeof(struct rpadesc),
+                .type = 0x12759999,
+                .name = "IBM,RPA-Client-Config",
+                .rpadesc = {
+                        .lpar_affinity = 0,
+                        .min_rmo_size = 64,     /* in megabytes */
+                        .min_rmo_percent = 0,
+                        .max_pft_size = 48,     /* 2^48 bytes max PFT size */
+                        .splpar = 1,
+                        .min_load = ~0U,
+                        .new_mem_def = 0
+                }
+        }
+};
+
+static void __init prom_send_capabilities(void)
+{
+        ihandle elfloader;
+
+        elfloader = call_prom("open", 1, 1, ADDR("/packages/elf-loader"));
+        if (elfloader == 0) {
+                prom_printf("couldn't open /packages/elf-loader\n");
+                return;
+        }
+        call_prom("call-method", 3, 1, ADDR("process-elf-header"),
+                        elfloader, ADDR(&fake_elf));
+        call_prom("close", 1, 0, elfloader);
+}
+#endif
+
+/*
+ * Memory allocation strategy... our layout is normally:
+ *
+ *  at 14Mb or more we have vmlinux, then a gap and initrd.  In some
+ *  rare cases, initrd might end up being before the kernel though.
+ *  We assume this won't override the final kernel at 0, we have no
+ *  provision to handle that in this version, but it should hopefully
+ *  never happen.
+ *
+ *  alloc_top is set to the top of RMO, eventually shrink down if the
+ *  TCEs overlap
+ *
+ *  alloc_bottom is set to the top of kernel/initrd
+ *
+ *  from there, allocations are done this way : rtas is allocated
+ *  topmost, and the device-tree is allocated from the bottom. We try
+ *  to grow the device-tree allocation as we progress. If we can't,
+ *  then we fail, we don't currently have a facility to restart
+ *  elsewhere, but that shouldn't be necessary.
+ *
+ *  Note that calls to reserve_mem have to be done explicitly, memory
+ *  allocated with either alloc_up or alloc_down isn't automatically
+ *  reserved.
+ */
+
+
+/*
+ * Allocates memory in the RMO upward from the kernel/initrd
+ *
+ * When align is 0, this is a special case, it means to allocate in place
+ * at the current location of alloc_bottom or fail (that is basically
+ * extending the previous allocation). Used for the device-tree flattening
+ */
+static unsigned long __init alloc_up(unsigned long size, unsigned long align)
+{
+        unsigned long base = RELOC(alloc_bottom);
+        unsigned long addr = 0;
+
+        if (align)
+                base = _ALIGN_UP(base, align);
+        prom_debug("alloc_up(%x, %x)\n", size, align);
+        if (RELOC(ram_top) == 0)
+                prom_panic("alloc_up() called with mem not initialized\n");
+
+        if (align)
+                base = _ALIGN_UP(RELOC(alloc_bottom), align);
+        else
+                base = RELOC(alloc_bottom);
+
+        for(; (base + size) <= RELOC(alloc_top); 
+            base = _ALIGN_UP(base + 0x100000, align)) {
+                prom_debug("    trying: 0x%x\n\r", base);
+                addr = (unsigned long)prom_claim(base, size, 0);
+                if (addr != PROM_ERROR && addr != 0)
+                        break;
+                addr = 0;
+                if (align == 0)
+                        break;
+        }
+        if (addr == 0)
+                return 0;
+        RELOC(alloc_bottom) = addr;
+
+        prom_debug(" -> %x\n", addr);
+        prom_debug("  alloc_bottom : %x\n", RELOC(alloc_bottom));
+        prom_debug("  alloc_top    : %x\n", RELOC(alloc_top));
+        prom_debug("  alloc_top_hi : %x\n", RELOC(alloc_top_high));
+        prom_debug("  rmo_top      : %x\n", RELOC(rmo_top));
+        prom_debug("  ram_top      : %x\n", RELOC(ram_top));
+
+        return addr;
+}
+
+/*
+ * Allocates memory downward, either from top of RMO, or if highmem
+ * is set, from the top of RAM.  Note that this one doesn't handle
+ * failures.  It does claim memory if highmem is not set.
+ */
+static unsigned long __init alloc_down(unsigned long size, unsigned long align,
+                                       int highmem)
+{
+        unsigned long base, addr = 0;
+
+        prom_debug("alloc_down(%x, %x, %s)\n", size, align,
+                   highmem ? RELOC("(high)") : RELOC("(low)"));
+        if (RELOC(ram_top) == 0)
+                prom_panic("alloc_down() called with mem not initialized\n");
+
+        if (highmem) {
+                /* Carve out storage for the TCE table. */
+                addr = _ALIGN_DOWN(RELOC(alloc_top_high) - size, align);
+                if (addr <= RELOC(alloc_bottom))
+                        return 0;
+                /* Will we bump into the RMO ? If yes, check out that we
+                 * didn't overlap existing allocations there, if we did,
+                 * we are dead, we must be the first in town !
+                 */
+                if (addr < RELOC(rmo_top)) {
+                        /* Good, we are first */
+                        if (RELOC(alloc_top) == RELOC(rmo_top))
+                                RELOC(alloc_top) = RELOC(rmo_top) = addr;
+                        else
+                                return 0;
+                }
+                RELOC(alloc_top_high) = addr;
+                goto bail;
+        }
+
+        base = _ALIGN_DOWN(RELOC(alloc_top) - size, align);
+        for (; base > RELOC(alloc_bottom);
+             base = _ALIGN_DOWN(base - 0x100000, align))  {
+                prom_debug("    trying: 0x%x\n\r", base);
+                addr = (unsigned long)prom_claim(base, size, 0);
+                if (addr != PROM_ERROR && addr != 0)
+                        break;
+                addr = 0;
+        }
+        if (addr == 0)
+                return 0;
+        RELOC(alloc_top) = addr;
+
+ bail:
+        prom_debug(" -> %x\n", addr);
+        prom_debug("  alloc_bottom : %x\n", RELOC(alloc_bottom));
+        prom_debug("  alloc_top    : %x\n", RELOC(alloc_top));
+        prom_debug("  alloc_top_hi : %x\n", RELOC(alloc_top_high));
+        prom_debug("  rmo_top      : %x\n", RELOC(rmo_top));
+        prom_debug("  ram_top      : %x\n", RELOC(ram_top));
+
+        return addr;
+}
+
+/*
+ * Parse a "reg" cell
+ */
+static unsigned long __init prom_next_cell(int s, cell_t **cellp)
+{
+        cell_t *p = *cellp;
+        unsigned long r = 0;
+
+        /* Ignore more than 2 cells */
+        while (s > sizeof(unsigned long) / 4) {
+                p++;
+                s--;
+        }
+        r = *p++;
+#ifdef CONFIG_PPC64
+        if (s > 1) {
+                r <<= 32;
+                r |= *(p++);
+        }
+#endif
+        *cellp = p;
+        return r;
+}
+
+/*
+ * Very dumb function for adding to the memory reserve list, but
+ * we don't need anything smarter at this point
+ *
+ * XXX Eventually check for collisions.  They should NEVER happen.
+ * If problems seem to show up, it would be a good start to track
+ * them down.
+ */
+static void reserve_mem(unsigned long base, unsigned long size)
+{
+        unsigned long top = base + size;
+        unsigned long cnt = RELOC(mem_reserve_cnt);
+
+        if (size == 0)
+                return;
+
+        /* We need to always keep one empty entry so that we
+         * have our terminator with "size" set to 0 since we are
+         * dumb and just copy this entire array to the boot params
+         */
+        base = _ALIGN_DOWN(base, PAGE_SIZE);
+        top = _ALIGN_UP(top, PAGE_SIZE);
+        size = top - base;
+
+        if (cnt >= (MEM_RESERVE_MAP_SIZE - 1))
+                prom_panic("Memory reserve map exhausted !\n");
+        RELOC(mem_reserve_map)[cnt].base = base;
+        RELOC(mem_reserve_map)[cnt].size = size;
+        RELOC(mem_reserve_cnt) = cnt + 1;
+}
+
+/*
+ * Initialize memory allocation mecanism, parse "memory" nodes and
+ * obtain that way the top of memory and RMO to setup out local allocator
+ */
+static void __init prom_init_mem(void)
+{
+        phandle node;
+        char *path, type[64];
+        unsigned int plen;
+        cell_t *p, *endp;
+        struct prom_t *_prom = &RELOC(prom);
+        u32 rac, rsc;
+
+        /*
+         * We iterate the memory nodes to find
+         * 1) top of RMO (first node)
+         * 2) top of memory
+         */
+        rac = 2;
+        prom_getprop(_prom->root, "#address-cells", &rac, sizeof(rac));
+        rsc = 1;
+        prom_getprop(_prom->root, "#size-cells", &rsc, sizeof(rsc));
+        prom_debug("root_addr_cells: %x\n", (unsigned long) rac);
+        prom_debug("root_size_cells: %x\n", (unsigned long) rsc);
+
+        prom_debug("scanning memory:\n");
+        path = RELOC(prom_scratch);
+
+        for (node = 0; prom_next_node(&node); ) {
+                type[0] = 0;
+                prom_getprop(node, "device_type", type, sizeof(type));
+
+                if (type[0] == 0) {
+                        /*
+                         * CHRP Longtrail machines have no device_type
+                         * on the memory node, so check the name instead...
+                         */
+                        prom_getprop(node, "name", type, sizeof(type));
+                }
+                if (strcmp(type, RELOC("memory")))
+                        continue;
+
+                plen = prom_getprop(node, "reg", RELOC(regbuf), sizeof(regbuf));
+                if (plen > sizeof(regbuf)) {
+                        prom_printf("memory node too large for buffer !\n");
+                        plen = sizeof(regbuf);
+                }
+                p = RELOC(regbuf);
+                endp = p + (plen / sizeof(cell_t));
+
+#ifdef DEBUG_PROM
+                memset(path, 0, PROM_SCRATCH_SIZE);
+                call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
+                prom_debug("  node %s :\n", path);
+#endif /* DEBUG_PROM */
+
+                while ((endp - p) >= (rac + rsc)) {
+                        unsigned long base, size;
+
+                        base = prom_next_cell(rac, &p);
+                        size = prom_next_cell(rsc, &p);
+
+                        if (size == 0)
+                                continue;
+                        prom_debug("    %x %x\n", base, size);
+                        if (base == 0)
+                                RELOC(rmo_top) = size;
+                        if ((base + size) > RELOC(ram_top))
+                                RELOC(ram_top) = base + size;
+                }
+        }
+
+        RELOC(alloc_bottom) = PAGE_ALIGN((unsigned long)&RELOC(_end) + 0x4000);
+
+        /* Check if we have an initrd after the kernel, if we do move our bottom
+         * point to after it
+         */
+        if (RELOC(prom_initrd_start)) {
+                if (RELOC(prom_initrd_end) > RELOC(alloc_bottom))
+                        RELOC(alloc_bottom) = PAGE_ALIGN(RELOC(prom_initrd_end));
+        }
+
+        /*
+         * If prom_memory_limit is set we reduce the upper limits *except* for
+         * alloc_top_high. This must be the real top of RAM so we can put
+         * TCE's up there.
+         */
+
+        RELOC(alloc_top_high) = RELOC(ram_top);
+
+        if (RELOC(prom_memory_limit)) {
+                if (RELOC(prom_memory_limit) <= RELOC(alloc_bottom)) {
+                        prom_printf("Ignoring mem=%x <= alloc_bottom.\n",
+                                RELOC(prom_memory_limit));
+                        RELOC(prom_memory_limit) = 0;
+                } else if (RELOC(prom_memory_limit) >= RELOC(ram_top)) {
+                        prom_printf("Ignoring mem=%x >= ram_top.\n",
+                                RELOC(prom_memory_limit));
+                        RELOC(prom_memory_limit) = 0;
+                } else {
+                        RELOC(ram_top) = RELOC(prom_memory_limit);
+                        RELOC(rmo_top) = min(RELOC(rmo_top), RELOC(prom_memory_limit));
+                }
+        }
+
+        /*
+         * Setup our top alloc point, that is top of RMO or top of
+         * segment 0 when running non-LPAR.
+         * Some RS64 machines have buggy firmware where claims up at
+         * 1GB fail.  Cap at 768MB as a workaround.
+         * Since 768MB is plenty of room, and we need to cap to something
+         * reasonable on 32-bit, cap at 768MB on all machines.
+         */
+        if (!RELOC(rmo_top))
+                RELOC(rmo_top) = RELOC(ram_top);
+        RELOC(rmo_top) = min(0x30000000ul, RELOC(rmo_top));
+        RELOC(alloc_top) = RELOC(rmo_top);
+
+        prom_printf("memory layout at init:\n");
+        prom_printf("  memory_limit : %x (16 MB aligned)\n", RELOC(prom_memory_limit));
+        prom_printf("  alloc_bottom : %x\n", RELOC(alloc_bottom));
+        prom_printf("  alloc_top    : %x\n", RELOC(alloc_top));
+        prom_printf("  alloc_top_hi : %x\n", RELOC(alloc_top_high));
+        prom_printf("  rmo_top      : %x\n", RELOC(rmo_top));
+        prom_printf("  ram_top      : %x\n", RELOC(ram_top));
+}
+
+
+/*
+ * Allocate room for and instantiate RTAS
+ */
+static void __init prom_instantiate_rtas(void)
+{
+        phandle rtas_node;
+        ihandle rtas_inst;
+        u32 base, entry = 0;
+        u32 size = 0;
+
+        prom_debug("prom_instantiate_rtas: start...\n");
+
+        rtas_node = call_prom("finddevice", 1, 1, ADDR("/rtas"));
+        prom_debug("rtas_node: %x\n", rtas_node);
+        if (!PHANDLE_VALID(rtas_node))
+                return;
+
+        prom_getprop(rtas_node, "rtas-size", &size, sizeof(size));
+        if (size == 0)
+                return;
+
+        base = alloc_down(size, PAGE_SIZE, 0);
+        if (base == 0) {
+                prom_printf("RTAS allocation failed !\n");
+                return;
+        }
+
+        rtas_inst = call_prom("open", 1, 1, ADDR("/rtas"));
+        if (!IHANDLE_VALID(rtas_inst)) {
+                prom_printf("opening rtas package failed");
+                return;
+        }
+
+        prom_printf("instantiating rtas at 0x%x ...", base);
+
+        if (call_prom_ret("call-method", 3, 2, &entry,
+                          ADDR("instantiate-rtas"),
+                          rtas_inst, base) == PROM_ERROR
+            || entry == 0) {
+                prom_printf(" failed\n");
+                return;
+        }
+        prom_printf(" done\n");
+
+        reserve_mem(base, size);
+
+        prom_setprop(rtas_node, "linux,rtas-base", &base, sizeof(base));
+        prom_setprop(rtas_node, "linux,rtas-entry", &entry, sizeof(entry));
+
+        prom_debug("rtas base     = 0x%x\n", base);
+        prom_debug("rtas entry    = 0x%x\n", entry);
+        prom_debug("rtas size     = 0x%x\n", (long)size);
+
+        prom_debug("prom_instantiate_rtas: end...\n");
+}
+
+#ifdef CONFIG_PPC64
+/*
+ * Allocate room for and initialize TCE tables
+ */
+static void __init prom_initialize_tce_table(void)
+{
+        phandle node;
+        ihandle phb_node;
+        char compatible[64], type[64], model[64];
+        char *path = RELOC(prom_scratch);
+        u64 base, align;
+        u32 minalign, minsize;
+        u64 tce_entry, *tce_entryp;
+        u64 local_alloc_top, local_alloc_bottom;
+        u64 i;
+
+        if (RELOC(ppc64_iommu_off))
+                return;
+
+        prom_debug("starting prom_initialize_tce_table\n");
+
+        /* Cache current top of allocs so we reserve a single block */
+        local_alloc_top = RELOC(alloc_top_high);
+        local_alloc_bottom = local_alloc_top;
+
+        /* Search all nodes looking for PHBs. */
+        for (node = 0; prom_next_node(&node); ) {
+                compatible[0] = 0;
+                type[0] = 0;
+                model[0] = 0;
+                prom_getprop(node, "compatible",
+                             compatible, sizeof(compatible));
+                prom_getprop(node, "device_type", type, sizeof(type));
+                prom_getprop(node, "model", model, sizeof(model));
+
+                if ((type[0] == 0) || (strstr(type, RELOC("pci")) == NULL))
+                        continue;
+
+                /* Keep the old logic in tack to avoid regression. */
+                if (compatible[0] != 0) {
+                        if ((strstr(compatible, RELOC("python")) == NULL) &&
+                            (strstr(compatible, RELOC("Speedwagon")) == NULL) &&
+                            (strstr(compatible, RELOC("Winnipeg")) == NULL))
+                                continue;
+                } else if (model[0] != 0) {
+                        if ((strstr(model, RELOC("ython")) == NULL) &&
+                            (strstr(model, RELOC("peedwagon")) == NULL) &&
+                            (strstr(model, RELOC("innipeg")) == NULL))
+                                continue;
+                }
+
+                if (prom_getprop(node, "tce-table-minalign", &minalign,
+                                 sizeof(minalign)) == PROM_ERROR)
+                        minalign = 0;
+                if (prom_getprop(node, "tce-table-minsize", &minsize,
+                                 sizeof(minsize)) == PROM_ERROR)
+                        minsize = 4UL << 20;
+
+                /*
+                 * Even though we read what OF wants, we just set the table
+                 * size to 4 MB.  This is enough to map 2GB of PCI DMA space.
+                 * By doing this, we avoid the pitfalls of trying to DMA to
+                 * MMIO space and the DMA alias hole.
+                 *
+                 * On POWER4, firmware sets the TCE region by assuming
+                 * each TCE table is 8MB. Using this memory for anything
+                 * else will impact performance, so we always allocate 8MB.
+                 * Anton
+                 */
+                if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p))
+                        minsize = 8UL << 20;
+                else
+                        minsize = 4UL << 20;
+
+                /* Align to the greater of the align or size */
+                align = max(minalign, minsize);
+                base = alloc_down(minsize, align, 1);
+                if (base == 0)
+                        prom_panic("ERROR, cannot find space for TCE table.\n");
+                if (base < local_alloc_bottom)
+                        local_alloc_bottom = base;
+
+                /* Save away the TCE table attributes for later use. */
+                prom_setprop(node, "linux,tce-base", &base, sizeof(base));
+                prom_setprop(node, "linux,tce-size", &minsize, sizeof(minsize));
+
+                /* It seems OF doesn't null-terminate the path :-( */
+                memset(path, 0, sizeof(path));
+                /* Call OF to setup the TCE hardware */
+                if (call_prom("package-to-path", 3, 1, node,
+                              path, PROM_SCRATCH_SIZE-1) == PROM_ERROR) {
+                        prom_printf("package-to-path failed\n");
+                }
+
+                prom_debug("TCE table: %s\n", path);
+                prom_debug("\tnode = 0x%x\n", node);
+                prom_debug("\tbase = 0x%x\n", base);
+                prom_debug("\tsize = 0x%x\n", minsize);
+
+                /* Initialize the table to have a one-to-one mapping
+                 * over the allocated size.
+                 */
+                tce_entryp = (unsigned long *)base;
+                for (i = 0; i < (minsize >> 3) ;tce_entryp++, i++) {
+                        tce_entry = (i << PAGE_SHIFT);
+                        tce_entry |= 0x3;
+                        *tce_entryp = tce_entry;
+                }
+
+                prom_printf("opening PHB %s", path);
+                phb_node = call_prom("open", 1, 1, path);
+                if (phb_node == 0)
+                        prom_printf("... failed\n");
+                else
+                        prom_printf("... done\n");
+
+                call_prom("call-method", 6, 0, ADDR("set-64-bit-addressing"),
+                          phb_node, -1, minsize,
+                          (u32) base, (u32) (base >> 32));
+                call_prom("close", 1, 0, phb_node);
+        }
+
+        reserve_mem(local_alloc_bottom, local_alloc_top - local_alloc_bottom);
+
+        if (RELOC(prom_memory_limit)) {
+                /*
+                 * We align the start to a 16MB boundary so we can map
+                 * the TCE area using large pages if possible.
+                 * The end should be the top of RAM so no need to align it.
+                 */
+                RELOC(prom_tce_alloc_start) = _ALIGN_DOWN(local_alloc_bottom,
+                                                          0x1000000);
+                RELOC(prom_tce_alloc_end) = local_alloc_top;
+        }
+
+        /* Flag the first invalid entry */
+        prom_debug("ending prom_initialize_tce_table\n");
+}
+#endif
+
+/*
+ * With CHRP SMP we need to use the OF to start the other processors.
+ * We can't wait until smp_boot_cpus (the OF is trashed by then)
+ * so we have to put the processors into a holding pattern controlled
+ * by the kernel (not OF) before we destroy the OF.
+ *
+ * This uses a chunk of low memory, puts some holding pattern
+ * code there and sends the other processors off to there until
+ * smp_boot_cpus tells them to do something.  The holding pattern
+ * checks that address until its cpu # is there, when it is that
+ * cpu jumps to __secondary_start().  smp_boot_cpus() takes care
+ * of setting those values.
+ *
+ * We also use physical address 0x4 here to tell when a cpu
+ * is in its holding pattern code.
+ *
+ * -- Cort
+ */
+extern void __secondary_hold(void);
+extern unsigned long __secondary_hold_spinloop;
+extern unsigned long __secondary_hold_acknowledge;
+
+/*
+ * We want to reference the copy of __secondary_hold_* in the
+ * 0 - 0x100 address range
+ */
+#define LOW_ADDR(x)     (((unsigned long) &(x)) & 0xff)
+
+static void __init prom_hold_cpus(void)
+{
+        unsigned long i;
+        unsigned int reg;
+        phandle node;
+        char type[64];
+        int cpuid = 0;
+        unsigned int interrupt_server[MAX_CPU_THREADS];
+        unsigned int cpu_threads, hw_cpu_num;
+        int propsize;
+        struct prom_t *_prom = &RELOC(prom);
+        unsigned long *spinloop
+                = (void *) LOW_ADDR(__secondary_hold_spinloop);
+        unsigned long *acknowledge
+                = (void *) LOW_ADDR(__secondary_hold_acknowledge);
+#ifdef CONFIG_PPC64
+        /* __secondary_hold is actually a descriptor, not the text address */
+        unsigned long secondary_hold
+                = __pa(*PTRRELOC((unsigned long *)__secondary_hold));
+#else
+        unsigned long secondary_hold = LOW_ADDR(__secondary_hold);
+#endif
+
+        prom_debug("prom_hold_cpus: start...\n");
+        prom_debug("    1) spinloop       = 0x%x\n", (unsigned long)spinloop);
+        prom_debug("    1) *spinloop      = 0x%x\n", *spinloop);
+        prom_debug("    1) acknowledge    = 0x%x\n",
+                   (unsigned long)acknowledge);
+        prom_debug("    1) *acknowledge   = 0x%x\n", *acknowledge);
+        prom_debug("    1) secondary_hold = 0x%x\n", secondary_hold);
+
+        /* Set the common spinloop variable, so all of the secondary cpus
+         * will block when they are awakened from their OF spinloop.
+         * This must occur for both SMP and non SMP kernels, since OF will
+         * be trashed when we move the kernel.
+         */
+        *spinloop = 0;
+
+#ifdef CONFIG_HMT
+        for (i = 0; i < NR_CPUS; i++)
+                RELOC(hmt_thread_data)[i].pir = 0xdeadbeef;
+#endif
+        /* look for cpus */
+        for (node = 0; prom_next_node(&node); ) {
+                type[0] = 0;
+                prom_getprop(node, "device_type", type, sizeof(type));
+                if (strcmp(type, RELOC("cpu")) != 0)
+                        continue;
+
+                /* Skip non-configured cpus. */
+                if (prom_getprop(node, "status", type, sizeof(type)) > 0)
+                        if (strcmp(type, RELOC("okay")) != 0)
+                                continue;
+
+                reg = -1;
+                prom_getprop(node, "reg", &reg, sizeof(reg));
+
+                prom_debug("\ncpuid        = 0x%x\n", cpuid);
+                prom_debug("cpu hw idx   = 0x%x\n", reg);
+
+                /* Init the acknowledge var which will be reset by
+                 * the secondary cpu when it awakens from its OF
+                 * spinloop.
+                 */
+                *acknowledge = (unsigned long)-1;
+
+                propsize = prom_getprop(node, "ibm,ppc-interrupt-server#s",
+                                        &interrupt_server,
+                                        sizeof(interrupt_server));
+                if (propsize < 0) {
+                        /* no property.  old hardware has no SMT */
+                        cpu_threads = 1;
+                        interrupt_server[0] = reg; /* fake it with phys id */
+                } else {
+                        /* We have a threaded processor */
+                        cpu_threads = propsize / sizeof(u32);
+                        if (cpu_threads > MAX_CPU_THREADS) {
+                                prom_printf("SMT: too many threads!\n"
+                                            "SMT: found %x, max is %x\n",
+                                            cpu_threads, MAX_CPU_THREADS);
+                                cpu_threads = 1; /* ToDo: panic? */
+                        }
+                }
+
+                hw_cpu_num = interrupt_server[0];
+                if (hw_cpu_num != _prom->cpu) {
+                        /* Primary Thread of non-boot cpu */
+                        prom_printf("%x : starting cpu hw idx %x... ", cpuid, reg);
+                        call_prom("start-cpu", 3, 0, node,
+                                  secondary_hold, reg);
+
+                        for (i = 0; (i < 100000000) && 
+                             (*acknowledge == ((unsigned long)-1)); i++ )
+                                mb();
+
+                        if (*acknowledge == reg)
+                                prom_printf("done\n");
+                        else
+                                prom_printf("failed: %x\n", *acknowledge);
+                }
+#ifdef CONFIG_SMP
+                else
+                        prom_printf("%x : boot cpu     %x\n", cpuid, reg);
+#endif /* CONFIG_SMP */
+
+                /* Reserve cpu #s for secondary threads.   They start later. */
+                cpuid += cpu_threads;
+        }
+#ifdef CONFIG_HMT
+        /* Only enable HMT on processors that provide support. */
+        if (__is_processor(PV_PULSAR) || 
+            __is_processor(PV_ICESTAR) ||
+            __is_processor(PV_SSTAR)) {
+                prom_printf("    starting secondary threads\n");
+
+                for (i = 0; i < NR_CPUS; i += 2) {
+                        if (!cpu_online(i))
+                                continue;
+
+                        if (i == 0) {
+                                unsigned long pir = mfspr(SPRN_PIR);
+                                if (__is_processor(PV_PULSAR)) {
+                                        RELOC(hmt_thread_data)[i].pir = 
+                                                pir & 0x1f;
+                                } else {
+                                        RELOC(hmt_thread_data)[i].pir = 
+                                                pir & 0x3ff;
+                                }
+                        }
+                }
+        } else {
+                prom_printf("Processor is not HMT capable\n");
+        }
+#endif
+
+        if (cpuid > NR_CPUS)
+                prom_printf("WARNING: maximum CPUs (" __stringify(NR_CPUS)
+                            ") exceeded: ignoring extras\n");
+
+        prom_debug("prom_hold_cpus: end...\n");
+}
+
+
+static void __init prom_init_client_services(unsigned long pp)
+{
+        struct prom_t *_prom = &RELOC(prom);
+
+        /* Get a handle to the prom entry point before anything else */
+        RELOC(prom_entry) = pp;
+
+        /* get a handle for the stdout device */
+        _prom->chosen = call_prom("finddevice", 1, 1, ADDR("/chosen"));
+        if (!PHANDLE_VALID(_prom->chosen))
+                prom_panic("cannot find chosen"); /* msg won't be printed :( */
+
+        /* get device tree root */
+        _prom->root = call_prom("finddevice", 1, 1, ADDR("/"));
+        if (!PHANDLE_VALID(_prom->root))
+                prom_panic("cannot find device tree root"); /* msg won't be printed :( */
+
+        _prom->mmumap = 0;
+}
+
+#ifdef CONFIG_PPC32
+/*
+ * For really old powermacs, we need to map things we claim.
+ * For that, we need the ihandle of the mmu.
+ */
+static void __init prom_find_mmu(void)
+{
+        struct prom_t *_prom = &RELOC(prom);
+        phandle oprom;
+        char version[64];
+
+        oprom = call_prom("finddevice", 1, 1, ADDR("/openprom"));
+        if (!PHANDLE_VALID(oprom))
+                return;
+        if (prom_getprop(oprom, "model", version, sizeof(version)) <= 0)
+                return;
+        version[sizeof(version) - 1] = 0;
+        prom_printf("OF version is '%s'\n", version);
+        /* XXX might need to add other versions here */
+        if (strcmp(version, "Open Firmware, 1.0.5") != 0)
+                return;
+        prom_getprop(_prom->chosen, "mmu", &_prom->mmumap,
+                     sizeof(_prom->mmumap));
+}
+#else
+#define prom_find_mmu()
+#endif
+
+static void __init prom_init_stdout(void)
+{
+        struct prom_t *_prom = &RELOC(prom);
+        char *path = RELOC(of_stdout_device);
+        char type[16];
+        u32 val;
+
+        if (prom_getprop(_prom->chosen, "stdout", &val, sizeof(val)) <= 0)
+                prom_panic("cannot find stdout");
+
+        _prom->stdout = val;
+
+        /* Get the full OF pathname of the stdout device */
+        memset(path, 0, 256);
+        call_prom("instance-to-path", 3, 1, _prom->stdout, path, 255);
+        val = call_prom("instance-to-package", 1, 1, _prom->stdout);
+        prom_setprop(_prom->chosen, "linux,stdout-package", &val, sizeof(val));
+        prom_printf("OF stdout device is: %s\n", RELOC(of_stdout_device));
+        prom_setprop(_prom->chosen, "linux,stdout-path",
+                     RELOC(of_stdout_device), strlen(RELOC(of_stdout_device))+1);
+
+        /* If it's a display, note it */
+        memset(type, 0, sizeof(type));
+        prom_getprop(val, "device_type", type, sizeof(type));
+        if (strcmp(type, RELOC("display")) == 0)
+                prom_setprop(val, "linux,boot-display", NULL, 0);
+}
+
+static void __init prom_close_stdin(void)
+{
+        struct prom_t *_prom = &RELOC(prom);
+        ihandle val;
+
+        if (prom_getprop(_prom->chosen, "stdin", &val, sizeof(val)) > 0)
+                call_prom("close", 1, 0, val);
+}
+
+static int __init prom_find_machine_type(void)
+{
+        struct prom_t *_prom = &RELOC(prom);
+        char compat[256];
+        int len, i = 0;
+        phandle rtas;
+
+        len = prom_getprop(_prom->root, "compatible",
+                           compat, sizeof(compat)-1);
+        if (len > 0) {
+                compat[len] = 0;
+                while (i < len) {
+                        char *p = &compat[i];
+                        int sl = strlen(p);
+                        if (sl == 0)
+                                break;
+                        if (strstr(p, RELOC("Power Macintosh")) ||
+                            strstr(p, RELOC("MacRISC")))
+                                return PLATFORM_POWERMAC;
+#ifdef CONFIG_PPC64
+                        if (strstr(p, RELOC("Momentum,Maple")))
+                                return PLATFORM_MAPLE;
+#endif
+                        i += sl + 1;
+                }
+        }
+#ifdef CONFIG_PPC64
+        /* Default to pSeries. We need to know if we are running LPAR */
+        rtas = call_prom("finddevice", 1, 1, ADDR("/rtas"));
+        if (PHANDLE_VALID(rtas)) {
+                int x = prom_getproplen(rtas, "ibm,hypertas-functions");
+                if (x != PROM_ERROR) {
+                        prom_printf("Hypertas detected, assuming LPAR !\n");
+                        return PLATFORM_PSERIES_LPAR;
+                }
+        }
+        return PLATFORM_PSERIES;
+#else
+        return PLATFORM_CHRP;
+#endif
+}
+
+static int __init prom_set_color(ihandle ih, int i, int r, int g, int b)
+{
+        return call_prom("call-method", 6, 1, ADDR("color!"), ih, i, b, g, r);
+}
+
+/*
+ * If we have a display that we don't know how to drive,
+ * we will want to try to execute OF's open method for it
+ * later.  However, OF will probably fall over if we do that
+ * we've taken over the MMU.
+ * So we check whether we will need to open the display,
+ * and if so, open it now.
+ */
+static void __init prom_check_displays(void)
+{
+        char type[16], *path;
+        phandle node;
+        ihandle ih;
+        int i;
+
+        static unsigned char default_colors[] = {
+                0x00, 0x00, 0x00,
+                0x00, 0x00, 0xaa,
+                0x00, 0xaa, 0x00,
+                0x00, 0xaa, 0xaa,
+                0xaa, 0x00, 0x00,
+                0xaa, 0x00, 0xaa,
+                0xaa, 0xaa, 0x00,
+                0xaa, 0xaa, 0xaa,
+                0x55, 0x55, 0x55,
+                0x55, 0x55, 0xff,
+                0x55, 0xff, 0x55,
+                0x55, 0xff, 0xff,
+                0xff, 0x55, 0x55,
+                0xff, 0x55, 0xff,
+                0xff, 0xff, 0x55,
+                0xff, 0xff, 0xff
+        };
+        const unsigned char *clut;
+
+        prom_printf("Looking for displays\n");
+        for (node = 0; prom_next_node(&node); ) {
+                memset(type, 0, sizeof(type));
+                prom_getprop(node, "device_type", type, sizeof(type));
+                if (strcmp(type, RELOC("display")) != 0)
+                        continue;
+
+                /* It seems OF doesn't null-terminate the path :-( */
+                path = RELOC(prom_scratch);
+                memset(path, 0, PROM_SCRATCH_SIZE);
+
+                /*
+                 * leave some room at the end of the path for appending extra
+                 * arguments
+                 */
+                if (call_prom("package-to-path", 3, 1, node, path,
+                              PROM_SCRATCH_SIZE-10) == PROM_ERROR)
+                        continue;
+                prom_printf("found display   : %s, opening ... ", path);
+                
+                ih = call_prom("open", 1, 1, path);
+                if (ih == 0) {
+                        prom_printf("failed\n");
+                        continue;
+                }
+
+                /* Success */
+                prom_printf("done\n");
+                prom_setprop(node, "linux,opened", NULL, 0);
+
+                /* Setup a usable color table when the appropriate
+                 * method is available. Should update this to set-colors */
+                clut = RELOC(default_colors);
+                for (i = 0; i < 32; i++, clut += 3)
+                        if (prom_set_color(ih, i, clut[0], clut[1],
+                                           clut[2]) != 0)
+                                break;
+
+#ifdef CONFIG_LOGO_LINUX_CLUT224
+                clut = PTRRELOC(RELOC(logo_linux_clut224.clut));
+                for (i = 0; i < RELOC(logo_linux_clut224.clutsize); i++, clut += 3)
+                        if (prom_set_color(ih, i + 32, clut[0], clut[1],
+                                           clut[2]) != 0)
+                                break;
+#endif /* CONFIG_LOGO_LINUX_CLUT224 */
+        }
+}
+
+
+/* Return (relocated) pointer to this much memory: moves initrd if reqd. */
+static void __init *make_room(unsigned long *mem_start, unsigned long *mem_end,
+                              unsigned long needed, unsigned long align)
+{
+        void *ret;
+
+        *mem_start = _ALIGN(*mem_start, align);
+        while ((*mem_start + needed) > *mem_end) {
+                unsigned long room, chunk;
+
+                prom_debug("Chunk exhausted, claiming more at %x...\n",
+                           RELOC(alloc_bottom));
+                room = RELOC(alloc_top) - RELOC(alloc_bottom);
+                if (room > DEVTREE_CHUNK_SIZE)
+                        room = DEVTREE_CHUNK_SIZE;
+                if (room < PAGE_SIZE)
+                        prom_panic("No memory for flatten_device_tree (no room)");
+                chunk = alloc_up(room, 0);
+                if (chunk == 0)
+                        prom_panic("No memory for flatten_device_tree (claim failed)");
+                *mem_end = RELOC(alloc_top);
+        }
+
+        ret = (void *)*mem_start;
+        *mem_start += needed;
+
+        return ret;
+}
+
+#define dt_push_token(token, mem_start, mem_end) \
+        do { *((u32 *)make_room(mem_start, mem_end, 4, 4)) = token; } while(0)
+
+static unsigned long __init dt_find_string(char *str)
+{
+        char *s, *os;
+
+        s = os = (char *)RELOC(dt_string_start);
+        s += 4;
+        while (s <  (char *)RELOC(dt_string_end)) {
+                if (strcmp(s, str) == 0)
+                        return s - os;
+                s += strlen(s) + 1;
+        }
+        return 0;
+}
+
+/*
+ * The Open Firmware 1275 specification states properties must be 31 bytes or
+ * less, however not all firmwares obey this. Make it 64 bytes to be safe.
+ */
+#define MAX_PROPERTY_NAME 64
+
+static void __init scan_dt_build_strings(phandle node,
+                                         unsigned long *mem_start,
+                                         unsigned long *mem_end)
+{
+        char *prev_name, *namep, *sstart;
+        unsigned long soff;
+        phandle child;
+
+        sstart =  (char *)RELOC(dt_string_start);
+
+        /* get and store all property names */
+        prev_name = RELOC("");
+        for (;;) {
+                /* 64 is max len of name including nul. */
+                namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1);
+                if (call_prom("nextprop", 3, 1, node, prev_name, namep) != 1) {
+                        /* No more nodes: unwind alloc */
+                        *mem_start = (unsigned long)namep;
+                        break;
+                }
+
+                /* skip "name" */
+                if (strcmp(namep, RELOC("name")) == 0) {
+                        *mem_start = (unsigned long)namep;
+                        prev_name = RELOC("name");
+                        continue;
+                }
+                /* get/create string entry */
+                soff = dt_find_string(namep);
+                if (soff != 0) {
+                        *mem_start = (unsigned long)namep;
+                        namep = sstart + soff;
+                } else {
+                        /* Trim off some if we can */
+                        *mem_start = (unsigned long)namep + strlen(namep) + 1;
+                        RELOC(dt_string_end) = *mem_start;
+                }
+                prev_name = namep;
+        }
+
+        /* do all our children */
+        child = call_prom("child", 1, 1, node);
+        while (child != 0) {
+                scan_dt_build_strings(child, mem_start, mem_end);
+                child = call_prom("peer", 1, 1, child);
+        }
+}
+
+static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
+                                        unsigned long *mem_end)
+{
+        phandle child;
+        char *namep, *prev_name, *sstart, *p, *ep, *lp, *path;
+        unsigned long soff;
+        unsigned char *valp;
+        static char pname[MAX_PROPERTY_NAME];
+        int l, room;
+
+        dt_push_token(OF_DT_BEGIN_NODE, mem_start, mem_end);
+
+        /* get the node's full name */
+        namep = (char *)*mem_start;
+        room = *mem_end - *mem_start;
+        if (room > 255)
+                room = 255;
+        l = call_prom("package-to-path", 3, 1, node, namep, room);
+        if (l >= 0) {
+                /* Didn't fit?  Get more room. */
+                if (l >= room) {
+                        if (l >= *mem_end - *mem_start)
+                                namep = make_room(mem_start, mem_end, l+1, 1);
+                        call_prom("package-to-path", 3, 1, node, namep, l);
+                }
+                namep[l] = '\0';
+
+                /* Fixup an Apple bug where they have bogus \0 chars in the
+                 * middle of the path in some properties, and extract
+                 * the unit name (everything after the last '/').
+                 */
+                for (lp = p = namep, ep = namep + l; p < ep; p++) {
+                        if (*p == '/')
+                                lp = namep;
+                        else if (*p != 0)
+                                *lp++ = *p;
+                }
+                *lp = 0;
+                *mem_start = _ALIGN((unsigned long)lp + 1, 4);
+        }
+
+        /* get it again for debugging */
+        path = RELOC(prom_scratch);
+        memset(path, 0, PROM_SCRATCH_SIZE);
+        call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
+
+        /* get and store all properties */
+        prev_name = RELOC("");
+        sstart = (char *)RELOC(dt_string_start);
+        for (;;) {
+                if (call_prom("nextprop", 3, 1, node, prev_name,
+                              RELOC(pname)) != 1)
+                        break;
+
+                /* skip "name" */
+                if (strcmp(RELOC(pname), RELOC("name")) == 0) {
+                        prev_name = RELOC("name");
+                        continue;
+                }
+
+                /* find string offset */
+                soff = dt_find_string(RELOC(pname));
+                if (soff == 0) {
+                        prom_printf("WARNING: Can't find string index for"
+                                    " <%s>, node %s\n", RELOC(pname), path);
+                        break;
+                }
+                prev_name = sstart + soff;
+
+                /* get length */
+                l = call_prom("getproplen", 2, 1, node, RELOC(pname));
+
+                /* sanity checks */
+                if (l == PROM_ERROR)
+                        continue;
+                if (l > MAX_PROPERTY_LENGTH) {
+                        prom_printf("WARNING: ignoring large property ");
+                        /* It seems OF doesn't null-terminate the path :-( */
+                        prom_printf("[%s] ", path);
+                        prom_printf("%s length 0x%x\n", RELOC(pname), l);
+                        continue;
+                }
+
+                /* push property head */
+                dt_push_token(OF_DT_PROP, mem_start, mem_end);
+                dt_push_token(l, mem_start, mem_end);
+                dt_push_token(soff, mem_start, mem_end);
+
+                /* push property content */
+                valp = make_room(mem_start, mem_end, l, 4);
+                call_prom("getprop", 4, 1, node, RELOC(pname), valp, l);
+                *mem_start = _ALIGN(*mem_start, 4);
+        }
+
+        /* Add a "linux,phandle" property. */
+        soff = dt_find_string(RELOC("linux,phandle"));
+        if (soff == 0)
+                prom_printf("WARNING: Can't find string index for"
+                            " <linux-phandle> node %s\n", path);
+        else {
+                dt_push_token(OF_DT_PROP, mem_start, mem_end);
+                dt_push_token(4, mem_start, mem_end);
+                dt_push_token(soff, mem_start, mem_end);
+                valp = make_room(mem_start, mem_end, 4, 4);
+                *(u32 *)valp = node;
+        }
+
+        /* do all our children */
+        child = call_prom("child", 1, 1, node);
+        while (child != 0) {
+                scan_dt_build_struct(child, mem_start, mem_end);
+                child = call_prom("peer", 1, 1, child);
+        }
+
+        dt_push_token(OF_DT_END_NODE, mem_start, mem_end);
+}
+
+static void __init flatten_device_tree(void)
+{
+        phandle root;
+        unsigned long mem_start, mem_end, room;
+        struct boot_param_header *hdr;
+        struct prom_t *_prom = &RELOC(prom);
+        char *namep;
+        u64 *rsvmap;
+
+        /*
+         * Check how much room we have between alloc top & bottom (+/- a
+         * few pages), crop to 4Mb, as this is our "chuck" size
+         */
+        room = RELOC(alloc_top) - RELOC(alloc_bottom) - 0x4000;
+        if (room > DEVTREE_CHUNK_SIZE)
+                room = DEVTREE_CHUNK_SIZE;
+        prom_debug("starting device tree allocs at %x\n", RELOC(alloc_bottom));
+
+        /* Now try to claim that */
+        mem_start = (unsigned long)alloc_up(room, PAGE_SIZE);
+        if (mem_start == 0)
+                prom_panic("Can't allocate initial device-tree chunk\n");
+        mem_end = RELOC(alloc_top);
+
+        /* Get root of tree */
+        root = call_prom("peer", 1, 1, (phandle)0);
+        if (root == (phandle)0)
+                prom_panic ("couldn't get device tree root\n");
+
+        /* Build header and make room for mem rsv map */ 
+        mem_start = _ALIGN(mem_start, 4);
+        hdr = make_room(&mem_start, &mem_end,
+                        sizeof(struct boot_param_header), 4);
+        RELOC(dt_header_start) = (unsigned long)hdr;
+        rsvmap = make_room(&mem_start, &mem_end, sizeof(mem_reserve_map), 8);
+
+        /* Start of strings */
+        mem_start = PAGE_ALIGN(mem_start);
+        RELOC(dt_string_start) = mem_start;
+        mem_start += 4; /* hole */
+
+        /* Add "linux,phandle" in there, we'll need it */
+        namep = make_room(&mem_start, &mem_end, 16, 1);
+        strcpy(namep, RELOC("linux,phandle"));
+        mem_start = (unsigned long)namep + strlen(namep) + 1;
+
+        /* Build string array */
+        prom_printf("Building dt strings...\n"); 
+        scan_dt_build_strings(root, &mem_start, &mem_end);
+        RELOC(dt_string_end) = mem_start;
+
+        /* Build structure */
+        mem_start = PAGE_ALIGN(mem_start);
+        RELOC(dt_struct_start) = mem_start;
+        prom_printf("Building dt structure...\n"); 
+        scan_dt_build_struct(root, &mem_start, &mem_end);
+        dt_push_token(OF_DT_END, &mem_start, &mem_end);
+        RELOC(dt_struct_end) = PAGE_ALIGN(mem_start);
+
+        /* Finish header */
+        hdr->boot_cpuid_phys = _prom->cpu;
+        hdr->magic = OF_DT_HEADER;
+        hdr->totalsize = RELOC(dt_struct_end) - RELOC(dt_header_start);
+        hdr->off_dt_struct = RELOC(dt_struct_start) - RELOC(dt_header_start);
+        hdr->off_dt_strings = RELOC(dt_string_start) - RELOC(dt_header_start);
+        hdr->dt_strings_size = RELOC(dt_string_end) - RELOC(dt_string_start);
+        hdr->off_mem_rsvmap = ((unsigned long)rsvmap) - RELOC(dt_header_start);
+        hdr->version = OF_DT_VERSION;
+        /* Version 16 is not backward compatible */
+        hdr->last_comp_version = 0x10;
+
+        /* Reserve the whole thing and copy the reserve map in, we
+         * also bump mem_reserve_cnt to cause further reservations to
+         * fail since it's too late.
+         */
+        reserve_mem(RELOC(dt_header_start), hdr->totalsize);
+        memcpy(rsvmap, RELOC(mem_reserve_map), sizeof(mem_reserve_map));
+
+#ifdef DEBUG_PROM
+        {
+                int i;
+                prom_printf("reserved memory map:\n");
+                for (i = 0; i < RELOC(mem_reserve_cnt); i++)
+                        prom_printf("  %x - %x\n",
+                                    RELOC(mem_reserve_map)[i].base,
+                                    RELOC(mem_reserve_map)[i].size);
+        }
+#endif
+        RELOC(mem_reserve_cnt) = MEM_RESERVE_MAP_SIZE;
+
+        prom_printf("Device tree strings 0x%x -> 0x%x\n",
+                    RELOC(dt_string_start), RELOC(dt_string_end)); 
+        prom_printf("Device tree struct  0x%x -> 0x%x\n",
+                    RELOC(dt_struct_start), RELOC(dt_struct_end));
+
+}
+
+
+static void __init fixup_device_tree(void)
+{
+#if defined(CONFIG_PPC64) && defined(CONFIG_PPC_PMAC)
+        phandle u3, i2c, mpic;
+        u32 u3_rev;
+        u32 interrupts[2];
+        u32 parent;
+
+        /* Some G5s have a missing interrupt definition, fix it up here */
+        u3 = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000"));
+        if (!PHANDLE_VALID(u3))
+                return;
+        i2c = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/i2c@f8001000"));
+        if (!PHANDLE_VALID(i2c))
+                return;
+        mpic = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/mpic@f8040000"));
+        if (!PHANDLE_VALID(mpic))
+                return;
+
+        /* check if proper rev of u3 */
+        if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
+            == PROM_ERROR)
+                return;
+        if (u3_rev != 0x35 && u3_rev != 0x37)
+                return;
+        /* does it need fixup ? */
+        if (prom_getproplen(i2c, "interrupts") > 0)
+                return;
+
+        prom_printf("fixing up bogus interrupts for u3 i2c...\n");
+
+        /* interrupt on this revision of u3 is number 0 and level */
+        interrupts[0] = 0;
+        interrupts[1] = 1;
+        prom_setprop(i2c, "interrupts", &interrupts, sizeof(interrupts));
+        parent = (u32)mpic;
+        prom_setprop(i2c, "interrupt-parent", &parent, sizeof(parent));
+#endif
+}
+
+
+static void __init prom_find_boot_cpu(void)
+{
+        struct prom_t *_prom = &RELOC(prom);
+        u32 getprop_rval;
+        ihandle prom_cpu;
+        phandle cpu_pkg;
+
+        _prom->cpu = 0;
+        if (prom_getprop(_prom->chosen, "cpu", &prom_cpu, sizeof(prom_cpu)) <= 0)
+                return;
+
+        cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
+
+        prom_getprop(cpu_pkg, "reg", &getprop_rval, sizeof(getprop_rval));
+        _prom->cpu = getprop_rval;
+
+        prom_debug("Booting CPU hw index = 0x%x\n", _prom->cpu);
+}
+
+static void __init prom_check_initrd(unsigned long r3, unsigned long r4)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+        struct prom_t *_prom = &RELOC(prom);
+
+        if (r3 && r4 && r4 != 0xdeadbeef) {
+                unsigned long val;
+
+                RELOC(prom_initrd_start) = (r3 >= KERNELBASE) ? __pa(r3) : r3;
+                RELOC(prom_initrd_end) = RELOC(prom_initrd_start) + r4;
+
+                val = RELOC(prom_initrd_start);
+                prom_setprop(_prom->chosen, "linux,initrd-start", &val,
+                             sizeof(val));
+                val = RELOC(prom_initrd_end);
+                prom_setprop(_prom->chosen, "linux,initrd-end", &val,
+                             sizeof(val));
+
+                reserve_mem(RELOC(prom_initrd_start),
+                            RELOC(prom_initrd_end) - RELOC(prom_initrd_start));
+
+                prom_debug("initrd_start=0x%x\n", RELOC(prom_initrd_start));
+                prom_debug("initrd_end=0x%x\n", RELOC(prom_initrd_end));
+        }
+#endif /* CONFIG_BLK_DEV_INITRD */
+}
+
+/*
+ * We enter here early on, when the Open Firmware prom is still
+ * handling exceptions and the MMU hash table for us.
+ */
+
+unsigned long __init prom_init(unsigned long r3, unsigned long r4,
+                               unsigned long pp,
+                               unsigned long r6, unsigned long r7)
+{       
+        struct prom_t *_prom;
+        unsigned long hdr;
+        u32 getprop_rval;
+        unsigned long offset = reloc_offset();
+
+#ifdef CONFIG_PPC32
+        reloc_got2(offset);
+#endif
+
+        _prom = &RELOC(prom);
+
+        /*
+         * First zero the BSS
+         */
+        memset(&RELOC(__bss_start), 0, __bss_stop - __bss_start);
+
+        /*
+         * Init interface to Open Firmware, get some node references,
+         * like /chosen
+         */
+        prom_init_client_services(pp);
+
+        /*
+         * Init prom stdout device
+         */
+        prom_init_stdout();
+
+        /*
+         * See if this OF is old enough that we need to do explicit maps
+         */
+        prom_find_mmu();
+
+        /*
+         * Check for an initrd
+         */
+        prom_check_initrd(r3, r4);
+
+        /*
+         * Get default machine type. At this point, we do not differentiate
+         * between pSeries SMP and pSeries LPAR
+         */
+        RELOC(of_platform) = prom_find_machine_type();
+        getprop_rval = RELOC(of_platform);
+        prom_setprop(_prom->chosen, "linux,platform",
+                     &getprop_rval, sizeof(getprop_rval));
+
+#ifdef CONFIG_PPC_PSERIES
+        /*
+         * On pSeries, inform the firmware about our capabilities
+         */
+        if (RELOC(of_platform) & PLATFORM_PSERIES)
+                prom_send_capabilities();
+#endif
+
+        /*
+         * On pSeries and BPA, copy the CPU hold code
+         */
+        if (RELOC(of_platform) != PLATFORM_POWERMAC)
+                copy_and_flush(0, KERNELBASE + offset, 0x100, 0);
+
+        /*
+         * Do early parsing of command line
+         */
+        early_cmdline_parse();
+
+        /*
+         * Initialize memory management within prom_init
+         */
+        prom_init_mem();
+
+        /*
+         * Determine which cpu is actually running right _now_
+         */
+        prom_find_boot_cpu();
+
+        /* 
+         * Initialize display devices
+         */
+        prom_check_displays();
+
+#ifdef CONFIG_PPC64
+        /*
+         * Initialize IOMMU (TCE tables) on pSeries. Do that before anything else
+         * that uses the allocator, we need to make sure we get the top of memory
+         * available for us here...
+         */
+        if (RELOC(of_platform) == PLATFORM_PSERIES)
+                prom_initialize_tce_table();
+#endif
+
+        /*
+         * On non-powermacs, try to instantiate RTAS and puts all CPUs
+         * in spin-loops. PowerMacs don't have a working RTAS and use
+         * a different way to spin CPUs
+         */
+        if (RELOC(of_platform) != PLATFORM_POWERMAC) {
+                prom_instantiate_rtas();
+                prom_hold_cpus();
+        }
+
+        /*
+         * Fill in some infos for use by the kernel later on
+         */
+        if (RELOC(prom_memory_limit))
+                prom_setprop(_prom->chosen, "linux,memory-limit",
+                             &RELOC(prom_memory_limit),
+                             sizeof(prom_memory_limit));
+#ifdef CONFIG_PPC64
+        if (RELOC(ppc64_iommu_off))
+                prom_setprop(_prom->chosen, "linux,iommu-off", NULL, 0);
+
+        if (RELOC(iommu_force_on))
+                prom_setprop(_prom->chosen, "linux,iommu-force-on", NULL, 0);
+
+        if (RELOC(prom_tce_alloc_start)) {
+                prom_setprop(_prom->chosen, "linux,tce-alloc-start",
+                             &RELOC(prom_tce_alloc_start),
+                             sizeof(prom_tce_alloc_start));
+                prom_setprop(_prom->chosen, "linux,tce-alloc-end",
+                             &RELOC(prom_tce_alloc_end),
+                             sizeof(prom_tce_alloc_end));
+        }
+#endif
+
+        /*
+         * Fixup any known bugs in the device-tree
+         */
+        fixup_device_tree();
+
+        /*
+         * Now finally create the flattened device-tree
+         */
+        prom_printf("copying OF device tree ...\n");
+        flatten_device_tree();
+
+        /* in case stdin is USB and still active on IBM machines... */
+        prom_close_stdin();
+
+        /*
+         * Call OF "quiesce" method to shut down pending DMA's from
+         * devices etc...
+         */
+        prom_printf("Calling quiesce ...\n");
+        call_prom("quiesce", 0, 0);
+
+        /*
+         * And finally, call the kernel passing it the flattened device
+         * tree and NULL as r5, thus triggering the new entry point which
+         * is common to us and kexec
+         */
+        hdr = RELOC(dt_header_start);
+        prom_printf("returning from prom_init\n");
+        prom_debug("->dt_header_start=0x%x\n", hdr);
+
+#ifdef CONFIG_PPC32
+        reloc_got2(-offset);
+#endif
+
+        __start(hdr, KERNELBASE + offset, 0);
+
+        return 0;
+}
diff --git a/arch/ppc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index e7aee4108dea..568ea335d616 100644
--- a/arch/ppc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1,6 +1,4 @@
 /*
- *  arch/ppc/kernel/ptrace.c
- *
  *  PowerPC version
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
  *
@@ -10,13 +8,14 @@
  *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
  *
  * Modified by Cort Dougan (cort@hq.fsmlabs.com)
- * and Paul Mackerras (paulus@linuxcare.com.au).
+ * and Paul Mackerras (paulus@samba.org).
  *
  * This file is subject to the terms and conditions of the GNU General
  * Public License.  See the file README.legal in the main directory of
  * this archive for more details.
  */
 
+#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
@@ -29,13 +28,19 @@
 #include <linux/signal.h>
 #include <linux/seccomp.h>
 #include <linux/audit.h>
+#ifdef CONFIG_PPC32
 #include <linux/module.h>
+#endif
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
+#ifdef CONFIG_PPC64
+#include <asm/ptrace-common.h>
+#endif
 
+#ifdef CONFIG_PPC32
 /*
  * Set of msr bits that gdb can change on behalf of a process.
  */
@@ -44,12 +49,14 @@
 #else
 #define MSR_DEBUGCHANGE (MSR_SE | MSR_BE)
 #endif
+#endif /* CONFIG_PPC32 */
 
 /*
  * does not yet catch signals sent when the child dies.
  * in exit.c or in signal.c.
  */
 
+#ifdef CONFIG_PPC32
 /*
  * Get contents of register REGNO in task TASK.
  */
@@ -228,6 +235,7 @@ clear_single_step(struct task_struct *task)
 #endif
         }
 }
+#endif /* CONFIG_PPC32 */
 
 /*
  * Called by kernel/ptrace.c when detaching..
@@ -240,7 +248,7 @@ void ptrace_disable(struct task_struct *child)
         clear_single_step(child);
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret = -EPERM;
@@ -296,25 +304,28 @@ int sys_ptrace(long request, long pid, long addr, long data)
         }
 
         /* read the word at location addr in the USER area. */
-        /* XXX this will need fixing for 64-bit */
         case PTRACE_PEEKUSR: {
                 unsigned long index, tmp;
 
                 ret = -EIO;
                 /* convert to index and check */
+#ifdef CONFIG_PPC32
                 index = (unsigned long) addr >> 2;
-                if ((addr & 3) || index > PT_FPSCR
-                    || child->thread.regs == NULL)
+                if ((addr & 3) || (index > PT_FPSCR)
+                    || (child->thread.regs == NULL))
+#else
+                index = (unsigned long) addr >> 3;
+                if ((addr & 7) || (index > PT_FPSCR))
+#endif
                         break;
 
+#ifdef CONFIG_PPC32
                 CHECK_FULL_REGS(child->thread.regs);
+#endif
                 if (index < PT_FPR0) {
                         tmp = get_reg(child, (int) index);
                 } else {
-                        preempt_disable();
-                        if (child->thread.regs->msr & MSR_FP)
-                                giveup_fpu(child);
-                        preempt_enable();
+                        flush_fp_to_thread(child);
                         tmp = ((unsigned long *)child->thread.fpr)[index - PT_FPR0];
                 }
                 ret = put_user(tmp,(unsigned long __user *) data);
@@ -325,7 +336,8 @@ int sys_ptrace(long request, long pid, long addr, long data)
         case PTRACE_POKETEXT: /* write the word at location addr. */
         case PTRACE_POKEDATA:
                 ret = 0;
-                if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
+                if (access_process_vm(child, addr, &data, sizeof(data), 1)
+                                == sizeof(data))
                         break;
                 ret = -EIO;
                 break;
@@ -336,21 +348,25 @@ int sys_ptrace(long request, long pid, long addr, long data)
 
                 ret = -EIO;
                 /* convert to index and check */
+#ifdef CONFIG_PPC32
                 index = (unsigned long) addr >> 2;
-                if ((addr & 3) || index > PT_FPSCR
-                    || child->thread.regs == NULL)
+                if ((addr & 3) || (index > PT_FPSCR)
+                    || (child->thread.regs == NULL))
+#else
+                index = (unsigned long) addr >> 3;
+                if ((addr & 7) || (index > PT_FPSCR))
+#endif
                         break;
 
+#ifdef CONFIG_PPC32
                 CHECK_FULL_REGS(child->thread.regs);
+#endif
                 if (index == PT_ORIG_R3)
                         break;
                 if (index < PT_FPR0) {
                         ret = put_reg(child, index, data);
                 } else {
-                        preempt_disable();
-                        if (child->thread.regs->msr & MSR_FP)
-                                giveup_fpu(child);
-                        preempt_enable();
+                        flush_fp_to_thread(child);
                         ((unsigned long *)child->thread.fpr)[index - PT_FPR0] = data;
                         ret = 0;
                 }
@@ -362,11 +378,10 @@ int sys_ptrace(long request, long pid, long addr, long data)
                 ret = -EIO;
                 if (!valid_signal(data))
                         break;
-                if (request == PTRACE_SYSCALL) {
+                if (request == PTRACE_SYSCALL)
                         set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                } else {
+                else
                         clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                }
                 child->exit_code = data;
                 /* make sure the single step bit is not set. */
                 clear_single_step(child);
@@ -404,28 +419,102 @@ int sys_ptrace(long request, long pid, long addr, long data)
                 break;
         }
 
+#ifdef CONFIG_PPC64
+        case PTRACE_GET_DEBUGREG: {
+                ret = -EINVAL;
+                /* We only support one DABR and no IABRS at the moment */
+                if (addr > 0)
+                        break;
+                ret = put_user(child->thread.dabr,
+                               (unsigned long __user *)data);
+                break;
+        }
+
+        case PTRACE_SET_DEBUGREG:
+                ret = ptrace_set_debugreg(child, addr, data);
+                break;
+#endif
+
         case PTRACE_DETACH:
                 ret = ptrace_detach(child, data);
                 break;
 
+#ifdef CONFIG_PPC64
+        case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
+                int i;
+                unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
+                unsigned long __user *tmp = (unsigned long __user *)addr;
+
+                for (i = 0; i < 32; i++) {
+                        ret = put_user(*reg, tmp);
+                        if (ret)
+                                break;
+                        reg++;
+                        tmp++;
+                }
+                break;
+        }
+
+        case PPC_PTRACE_SETREGS: { /* Set GPRs 0 - 31. */
+                int i;
+                unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
+                unsigned long __user *tmp = (unsigned long __user *)addr;
+
+                for (i = 0; i < 32; i++) {
+                        ret = get_user(*reg, tmp);
+                        if (ret)
+                                break;
+                        reg++;
+                        tmp++;
+                }
+                break;
+        }
+
+        case PPC_PTRACE_GETFPREGS: { /* Get FPRs 0 - 31. */
+                int i;
+                unsigned long *reg = &((unsigned long *)child->thread.fpr)[0];
+                unsigned long __user *tmp = (unsigned long __user *)addr;
+
+                flush_fp_to_thread(child);
+
+                for (i = 0; i < 32; i++) {
+                        ret = put_user(*reg, tmp);
+                        if (ret)
+                                break;
+                        reg++;
+                        tmp++;
+                }
+                break;
+        }
+
+        case PPC_PTRACE_SETFPREGS: { /* Get FPRs 0 - 31. */
+                int i;
+                unsigned long *reg = &((unsigned long *)child->thread.fpr)[0];
+                unsigned long __user *tmp = (unsigned long __user *)addr;
+
+                flush_fp_to_thread(child);
+
+                for (i = 0; i < 32; i++) {
+                        ret = get_user(*reg, tmp);
+                        if (ret)
+                                break;
+                        reg++;
+                        tmp++;
+                }
+                break;
+        }
+#endif /* CONFIG_PPC64 */
+
 #ifdef CONFIG_ALTIVEC
         case PTRACE_GETVRREGS:
                 /* Get the child altivec register state. */
-                preempt_disable();
-                if (child->thread.regs->msr & MSR_VEC)
-                        giveup_altivec(child);
-                preempt_enable();
+                flush_altivec_to_thread(child);
                 ret = get_vrregs((unsigned long __user *)data, child);
                 break;
 
         case PTRACE_SETVRREGS:
                 /* Set the child altivec register state. */
-                /* this is to clear the MSR_VEC bit to force a reload
-                 * of register state from memory */
-                preempt_disable();
-                if (child->thread.regs->msr & MSR_VEC)
-                        giveup_altivec(child);
-                preempt_enable();
+                flush_altivec_to_thread(child);
                 ret = set_vrregs(child, (unsigned long __user *)data);
                 break;
 #endif
@@ -478,12 +567,21 @@ static void do_syscall_trace(void)
 
 void do_syscall_trace_enter(struct pt_regs *regs)
 {
+#ifdef CONFIG_PPC64
+        secure_computing(regs->gpr[0]);
+#endif
+
         if (test_thread_flag(TIF_SYSCALL_TRACE)
             && (current->ptrace & PT_PTRACED))
                 do_syscall_trace();
 
         if (unlikely(current->audit_context))
-                audit_syscall_entry(current, AUDIT_ARCH_PPC,
+                audit_syscall_entry(current,
+#ifdef CONFIG_PPC32
+                                    AUDIT_ARCH_PPC,
+#else
+                                    test_thread_flag(TIF_32BIT)?AUDIT_ARCH_PPC:AUDIT_ARCH_PPC64,
+#endif
                                     regs->gpr[0],
                                     regs->gpr[3], regs->gpr[4],
                                     regs->gpr[5], regs->gpr[6]);
@@ -491,17 +589,25 @@ void do_syscall_trace_enter(struct pt_regs *regs)
 
 void do_syscall_trace_leave(struct pt_regs *regs)
 {
+#ifdef CONFIG_PPC32
         secure_computing(regs->gpr[0]);
+#endif
 
         if (unlikely(current->audit_context))
                 audit_syscall_exit(current,
                                    (regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
                                    regs->result);
 
-        if ((test_thread_flag(TIF_SYSCALL_TRACE))
+        if ((test_thread_flag(TIF_SYSCALL_TRACE)
+#ifdef CONFIG_PPC64
+             || test_thread_flag(TIF_SINGLESTEP)
+#endif
+             )
             && (current->ptrace & PT_PTRACED))
                 do_syscall_trace();
 }
 
+#ifdef CONFIG_PPC32
 EXPORT_SYMBOL(do_syscall_trace_enter);
 EXPORT_SYMBOL(do_syscall_trace_leave);
+#endif
diff --git a/arch/ppc64/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index fb8c22d6084a..91eb952e0293 100644
--- a/arch/ppc64/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -1,5 +1,5 @@
 /*
- *  linux/arch/ppc64/kernel/ptrace32.c
+ * ptrace for 32-bit processes running on a 64-bit kernel.
  *
  *  PowerPC version
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
@@ -10,10 +10,10 @@
  *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
  *
  * Modified by Cort Dougan (cort@hq.fsmlabs.com)
- * and Paul Mackerras (paulus@linuxcare.com.au).
+ * and Paul Mackerras (paulus@samba.org).
  *
  * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file README.legal in the main directory of
+ * Public License.  See the file COPYING in the main directory of
  * this archive for more details.
  */
 
@@ -40,7 +40,8 @@
  * in exit.c or in signal.c.
  */
 
-int sys32_ptrace(long request, long pid, unsigned long addr, unsigned long data)
+long compat_sys_ptrace(int request, int pid, unsigned long addr,
+                       unsigned long data)
 {
         struct task_struct *child;
         int ret = -EPERM;
diff --git a/arch/ppc64/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 5e8eb33b8e54..4d22eeeeb91d 100644
--- a/arch/ppc64/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -25,28 +25,29 @@
 #include <asm/page.h>
 #include <asm/param.h>
 #include <asm/system.h>
-#include <asm/abs_addr.h>
-#include <asm/udbg.h>
 #include <asm/delay.h>
 #include <asm/uaccess.h>
+#include <asm/lmb.h>
+#ifdef CONFIG_PPC64
 #include <asm/systemcfg.h>
+#endif
 
-struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
-
-struct rtas_t rtas = { 
+struct rtas_t rtas = {
         .lock = SPIN_LOCK_UNLOCKED
 };
 
 EXPORT_SYMBOL(rtas);
 
-char rtas_err_buf[RTAS_ERROR_LOG_MAX];
-
 DEFINE_SPINLOCK(rtas_data_buf_lock);
-char rtas_data_buf[RTAS_DATA_BUF_SIZE]__page_aligned;
+char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
 unsigned long rtas_rmo_buf;
 
-void
-call_rtas_display_status(unsigned char c)
+/*
+ * call_rtas_display_status and call_rtas_display_status_delay
+ * are designed only for very early low-level debugging, which
+ * is why the token is hard-coded to 10.
+ */
+void call_rtas_display_status(unsigned char c)
 {
         struct rtas_args *args = &rtas.args;
         unsigned long s;
@@ -66,8 +67,7 @@ call_rtas_display_status(unsigned char c)
         spin_unlock_irqrestore(&rtas.lock, s);
 }
 
-void
-call_rtas_display_status_delay(unsigned char c)
+void call_rtas_display_status_delay(unsigned char c)
 {
         static int pending_newline = 0;  /* did last write end with unprinted newline? */
         static int width = 16;
@@ -91,8 +91,7 @@ call_rtas_display_status_delay(unsigned char c)
         }
 }
 
-void
-rtas_progress(char *s, unsigned short hex)
+void rtas_progress(char *s, unsigned short hex)
 {
         struct device_node *root;
         int width, *p;
@@ -208,18 +207,16 @@ rtas_progress(char *s, unsigned short hex)
         spin_unlock(&progress_lock);
 }
 
-int
-rtas_token(const char *service)
+int rtas_token(const char *service)
 {
         int *tokp;
-        if (rtas.dev == NULL) {
-                PPCDBG(PPCDBG_RTAS,"\tNo rtas device in device-tree...\n");
+        if (rtas.dev == NULL)
                 return RTAS_UNKNOWN_SERVICE;
-        }
         tokp = (int *) get_property(rtas.dev, service, NULL);
         return tokp ? *tokp : RTAS_UNKNOWN_SERVICE;
 }
 
+#ifdef CONFIG_RTAS_ERROR_LOGGING
 /*
  * Return the firmware-specified size of the error log buffer
  *  for all rtas calls that require an error buffer argument.
@@ -234,31 +231,38 @@ int rtas_get_error_log_max(void)
         rtas_error_log_max = rtas_token ("rtas-error-log-max");
         if ((rtas_error_log_max == RTAS_UNKNOWN_SERVICE) ||
             (rtas_error_log_max > RTAS_ERROR_LOG_MAX)) {
-                printk (KERN_WARNING "RTAS: bad log buffer size %d\n", rtas_error_log_max);
+                printk (KERN_WARNING "RTAS: bad log buffer size %d\n",
+                        rtas_error_log_max);
                 rtas_error_log_max = RTAS_ERROR_LOG_MAX;
         }
         return rtas_error_log_max;
 }
+EXPORT_SYMBOL(rtas_get_error_log_max);
 
 
+char rtas_err_buf[RTAS_ERROR_LOG_MAX];
+int rtas_last_error_token;
+
 /** Return a copy of the detailed error text associated with the
  *  most recent failed call to rtas.  Because the error text
  *  might go stale if there are any other intervening rtas calls,
  *  this routine must be called atomically with whatever produced
  *  the error (i.e. with rtas.lock still held from the previous call).
  */
-static int
-__fetch_rtas_last_error(void)
+static char *__fetch_rtas_last_error(char *altbuf)
 {
         struct rtas_args err_args, save_args;
         u32 bufsz;
+        char *buf = NULL;
+
+        if (rtas_last_error_token == -1)
+                return NULL;
 
         bufsz = rtas_get_error_log_max();
 
-        err_args.token = rtas_token("rtas-last-error");
+        err_args.token = rtas_last_error_token;
         err_args.nargs = 2;
         err_args.nret = 1;
-
         err_args.args[0] = (rtas_arg_t)__pa(rtas_err_buf);
         err_args.args[1] = bufsz;
         err_args.args[2] = 0;
@@ -271,23 +275,38 @@ __fetch_rtas_last_error(void)
         err_args = rtas.args;
         rtas.args = save_args;
 
-        return err_args.args[2];
+        /* Log the error in the unlikely case that there was one. */
+        if (unlikely(err_args.args[2] == 0)) {
+                if (altbuf) {
+                        buf = altbuf;
+                } else {
+                        buf = rtas_err_buf;
+                        if (mem_init_done)
+                                buf = kmalloc(RTAS_ERROR_LOG_MAX, GFP_ATOMIC);
+                }
+                if (buf)
+                        memcpy(buf, rtas_err_buf, RTAS_ERROR_LOG_MAX);
+        }
+
+        return buf;
 }
 
+#define get_errorlog_buffer()   kmalloc(RTAS_ERROR_LOG_MAX, GFP_KERNEL)
+
+#else /* CONFIG_RTAS_ERROR_LOGGING */
+#define __fetch_rtas_last_error(x)      NULL
+#define get_errorlog_buffer()           NULL
+#endif
+
 int rtas_call(int token, int nargs, int nret, int *outputs, ...)
 {
         va_list list;
-        int i, logit = 0;
+        int i;
         unsigned long s;
         struct rtas_args *rtas_args;
-        char * buff_copy = NULL;
+        char *buff_copy = NULL;
         int ret;
 
-        PPCDBG(PPCDBG_RTAS, "Entering rtas_call\n");
-        PPCDBG(PPCDBG_RTAS, "\ttoken    = 0x%x\n", token);
-        PPCDBG(PPCDBG_RTAS, "\tnargs    = %d\n", nargs);
-        PPCDBG(PPCDBG_RTAS, "\tnret     = %d\n", nret);
-        PPCDBG(PPCDBG_RTAS, "\t&outputs = 0x%lx\n", outputs);
         if (token == RTAS_UNKNOWN_SERVICE)
                 return -1;
 
@@ -300,46 +319,25 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
         rtas_args->nret  = nret;
         rtas_args->rets  = (rtas_arg_t *)&(rtas_args->args[nargs]);
         va_start(list, outputs);
-        for (i = 0; i < nargs; ++i) {
+        for (i = 0; i < nargs; ++i)
                 rtas_args->args[i] = va_arg(list, rtas_arg_t);
-                PPCDBG(PPCDBG_RTAS, "\tnarg[%d] = 0x%x\n", i, rtas_args->args[i]);
-        }
         va_end(list);
 
         for (i = 0; i < nret; ++i)
                 rtas_args->rets[i] = 0;
 
-        PPCDBG(PPCDBG_RTAS, "\tentering rtas with 0x%lx\n",
-                __pa(rtas_args));
         enter_rtas(__pa(rtas_args));
-        PPCDBG(PPCDBG_RTAS, "\treturned from rtas ...\n");
 
         /* A -1 return code indicates that the last command couldn't
            be completed due to a hardware error. */
         if (rtas_args->rets[0] == -1)
-                logit = (__fetch_rtas_last_error() == 0);
-
-        ifppcdebug(PPCDBG_RTAS) {
-                for(i=0; i < nret ;i++)
-                        udbg_printf("\tnret[%d] = 0x%lx\n", i, (ulong)rtas_args->rets[i]);
-        }
+                buff_copy = __fetch_rtas_last_error(NULL);
 
         if (nret > 1 && outputs != NULL)
                 for (i = 0; i < nret-1; ++i)
                         outputs[i] = rtas_args->rets[i+1];
         ret = (nret > 0)? rtas_args->rets[0]: 0;
 
-        /* Log the error in the unlikely case that there was one. */
-        if (unlikely(logit)) {
-                buff_copy = rtas_err_buf;
-                if (mem_init_done) {
-                        buff_copy = kmalloc(RTAS_ERROR_LOG_MAX, GFP_ATOMIC);
-                        if (buff_copy)
-                                memcpy(buff_copy, rtas_err_buf,
-                                       RTAS_ERROR_LOG_MAX);
-                }
-        }
-
         /* Gotta do something different here, use global lock for now... */
         spin_unlock_irqrestore(&rtas.lock, s);
 
@@ -354,8 +352,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
 /* Given an RTAS status code of 990n compute the hinted delay of 10^n
  * (last digit) milliseconds.  For now we bound at n=5 (100 sec).
  */
-unsigned int
-rtas_extended_busy_delay_time(int status)
+unsigned int rtas_extended_busy_delay_time(int status)
 {
         int order = status - 9900;
         unsigned long ms;
@@ -366,7 +363,7 @@ rtas_extended_busy_delay_time(int status)
                 order = 5;      /* bound */
 
         /* Use microseconds for reasonable accuracy */
-        for (ms=1; order > 0; order--)
+        for (ms = 1; order > 0; order--)
                 ms *= 10;
 
         return ms; 
@@ -493,112 +490,23 @@ int rtas_set_indicator(int indicator, int index, int new_value)
         return rc;
 }
 
-#define FLASH_BLOCK_LIST_VERSION (1UL)
-static void
-rtas_flash_firmware(void)
-{
-        unsigned long image_size;
-        struct flash_block_list *f, *next, *flist;
-        unsigned long rtas_block_list;
-        int i, status, update_token;
-
-        update_token = rtas_token("ibm,update-flash-64-and-reboot");
-        if (update_token == RTAS_UNKNOWN_SERVICE) {
-                printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot is not available -- not a service partition?\n");
-                printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
-                return;
-        }
-
-        /* NOTE: the "first" block list is a global var with no data
-         * blocks in the kernel data segment.  We do this because
-         * we want to ensure this block_list addr is under 4GB.
-         */
-        rtas_firmware_flash_list.num_blocks = 0;
-        flist = (struct flash_block_list *)&rtas_firmware_flash_list;
-        rtas_block_list = virt_to_abs(flist);
-        if (rtas_block_list >= 4UL*1024*1024*1024) {
-                printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
-                return;
-        }
-
-        printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
-        /* Update the block_list in place. */
-        image_size = 0;
-        for (f = flist; f; f = next) {
-                /* Translate data addrs to absolute */
-                for (i = 0; i < f->num_blocks; i++) {
-                        f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
-                        image_size += f->blocks[i].length;
-                }
-                next = f->next;
-                /* Don't translate NULL pointer for last entry */
-                if (f->next)
-                        f->next = (struct flash_block_list *)virt_to_abs(f->next);
-                else
-                        f->next = NULL;
-                /* make num_blocks into the version/length field */
-                f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
-        }
-
-        printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
-        printk(KERN_ALERT "FLASH: performing flash and reboot\n");
-        rtas_progress("Flashing        \n", 0x0);
-        rtas_progress("Please Wait...  ", 0x0);
-        printk(KERN_ALERT "FLASH: this will take several minutes.  Do not power off!\n");
-        status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
-        switch (status) {       /* should only get "bad" status */
-            case 0:
-                printk(KERN_ALERT "FLASH: success\n");
-                break;
-            case -1:
-                printk(KERN_ALERT "FLASH: hardware error.  Firmware may not be not flashed\n");
-                break;
-            case -3:
-                printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform.  Firmware not flashed\n");
-                break;
-            case -4:
-                printk(KERN_ALERT "FLASH: flash failed when partially complete.  System may not reboot\n");
-                break;
-            default:
-                printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
-                break;
-        }
-}
-
-void rtas_flash_bypass_warning(void)
-{
-        printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
-        printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
-}
-
-
-void
-rtas_restart(char *cmd)
+void rtas_restart(char *cmd)
 {
-        if (rtas_firmware_flash_list.next)
-                rtas_flash_firmware();
-
         printk("RTAS system-reboot returned %d\n",
                rtas_call(rtas_token("system-reboot"), 0, 1, NULL));
         for (;;);
 }
 
-void
-rtas_power_off(void)
+void rtas_power_off(void)
 {
-        if (rtas_firmware_flash_list.next)
-                rtas_flash_bypass_warning();
         /* allow power on only with power button press */
         printk("RTAS power-off returned %d\n",
                rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
         for (;;);
 }
 
-void
-rtas_halt(void)
+void rtas_halt(void)
 {
-        if (rtas_firmware_flash_list.next)
-                rtas_flash_bypass_warning();
         rtas_power_off();
 }
 
@@ -631,9 +539,8 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
 {
         struct rtas_args args;
         unsigned long flags;
-        char * buff_copy;
+        char *buff_copy, *errbuf = NULL;
         int nargs;
-        int err_rc = 0;
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
@@ -652,7 +559,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
                            nargs * sizeof(rtas_arg_t)) != 0)
                 return -EFAULT;
 
-        buff_copy = kmalloc(RTAS_ERROR_LOG_MAX, GFP_KERNEL);
+        buff_copy = get_errorlog_buffer();
 
         spin_lock_irqsave(&rtas.lock, flags);
 
@@ -664,19 +571,14 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
 
         /* A -1 return code indicates that the last command couldn't
            be completed due to a hardware error. */
-        if (args.rets[0] == -1) {
-                err_rc = __fetch_rtas_last_error();
-                if ((err_rc == 0) && buff_copy) {
-                        memcpy(buff_copy, rtas_err_buf, RTAS_ERROR_LOG_MAX);
-                }
-        }
+        if (args.rets[0] == -1)
+                errbuf = __fetch_rtas_last_error(buff_copy);
 
         spin_unlock_irqrestore(&rtas.lock, flags);
 
         if (buff_copy) {
-                if ((args.rets[0] == -1) && (err_rc == 0)) {
-                        log_error(buff_copy, ERR_TYPE_RTAS_LOG, 0);
-                }
+                if (errbuf)
+                        log_error(errbuf, ERR_TYPE_RTAS_LOG, 0);
                 kfree(buff_copy);
         }
 
@@ -689,6 +591,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
         return 0;
 }
 
+#ifdef CONFIG_SMP
 /* This version can't take the spinlock, because it never returns */
 
 struct rtas_args rtas_stop_self_args = {
@@ -713,6 +616,7 @@ void rtas_stop_self(void)
 
         panic("Alas, I survived.\n");
 }
+#endif
 
 /*
  * Call early during boot, before mem init or bootmem, to retreive the RTAS
@@ -721,6 +625,8 @@ void rtas_stop_self(void)
  */
 void __init rtas_initialize(void)
 {
+        unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
+
         /* Get RTAS dev node and fill up our "rtas" structure with infos
          * about it.
          */
@@ -742,26 +648,27 @@ void __init rtas_initialize(void)
                 } else
                         rtas.dev = NULL;
         }
+        if (!rtas.dev)
+                return;
+
         /* If RTAS was found, allocate the RMO buffer for it and look for
          * the stop-self token if any
          */
-        if (rtas.dev) {
-                unsigned long rtas_region = RTAS_INSTANTIATE_MAX;
-                if (systemcfg->platform == PLATFORM_PSERIES_LPAR)
-                        rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX);
-
-                rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE,
-                                                        rtas_region);
+#ifdef CONFIG_PPC64
+        if (systemcfg->platform == PLATFORM_PSERIES_LPAR)
+                rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX);
+#endif
+        rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region);
 
 #ifdef CONFIG_HOTPLUG_CPU
-                rtas_stop_self_args.token = rtas_token("stop-self");
+        rtas_stop_self_args.token = rtas_token("stop-self");
 #endif /* CONFIG_HOTPLUG_CPU */
-        }
-
+#ifdef CONFIG_RTAS_ERROR_LOGGING
+        rtas_last_error_token = rtas_token("rtas-last-error");
+#endif
 }
 
 
-EXPORT_SYMBOL(rtas_firmware_flash_list);
 EXPORT_SYMBOL(rtas_token);
 EXPORT_SYMBOL(rtas_call);
 EXPORT_SYMBOL(rtas_data_buf);
@@ -771,4 +678,3 @@ EXPORT_SYMBOL(rtas_get_sensor);
 EXPORT_SYMBOL(rtas_get_power_level);
 EXPORT_SYMBOL(rtas_set_power_level);
 EXPORT_SYMBOL(rtas_set_indicator);
-EXPORT_SYMBOL(rtas_get_error_log_max);
diff --git a/arch/powerpc/kernel/semaphore.c b/arch/powerpc/kernel/semaphore.c
new file mode 100644
index 000000000000..2f8c3c951394
--- /dev/null
+++ b/arch/powerpc/kernel/semaphore.c
@@ -0,0 +1,135 @@
+/*
+ * PowerPC-specific semaphore code.
+ *
+ * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * April 2001 - Reworked by Paul Mackerras <paulus@samba.org>
+ * to eliminate the SMP races in the old version between the updates
+ * of `count' and `waking'.  Now we use negative `count' values to
+ * indicate that some process(es) are waiting for the semaphore.
+ */
+
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <asm/atomic.h>
+#include <asm/semaphore.h>
+#include <asm/errno.h>
+
+/*
+ * Atomically update sem->count.
+ * This does the equivalent of the following:
+ *
+ *      old_count = sem->count;
+ *      tmp = MAX(old_count, 0) + incr;
+ *      sem->count = tmp;
+ *      return old_count;
+ */
+static inline int __sem_update_count(struct semaphore *sem, int incr)
+{
+        int old_count, tmp;
+
+        __asm__ __volatile__("\n"
+"1:     lwarx   %0,0,%3\n"
+"       srawi   %1,%0,31\n"
+"       andc    %1,%0,%1\n"
+"       add     %1,%1,%4\n"
+        PPC405_ERR77(0,%3)
+"       stwcx.  %1,0,%3\n"
+"       bne     1b"
+        : "=&r" (old_count), "=&r" (tmp), "=m" (sem->count)
+        : "r" (&sem->count), "r" (incr), "m" (sem->count)
+        : "cc");
+
+        return old_count;
+}
+
+void __up(struct semaphore *sem)
+{
+        /*
+         * Note that we incremented count in up() before we came here,
+         * but that was ineffective since the result was <= 0, and
+         * any negative value of count is equivalent to 0.
+         * This ends up setting count to 1, unless count is now > 0
+         * (i.e. because some other cpu has called up() in the meantime),
+         * in which case we just increment count.
+         */
+        __sem_update_count(sem, 1);
+        wake_up(&sem->wait);
+}
+EXPORT_SYMBOL(__up);
+
+/*
+ * Note that when we come in to __down or __down_interruptible,
+ * we have already decremented count, but that decrement was
+ * ineffective since the result was < 0, and any negative value
+ * of count is equivalent to 0.
+ * Thus it is only when we decrement count from some value > 0
+ * that we have actually got the semaphore.
+ */
+void __sched __down(struct semaphore *sem)
+{
+        struct task_struct *tsk = current;
+        DECLARE_WAITQUEUE(wait, tsk);
+
+        __set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+        add_wait_queue_exclusive(&sem->wait, &wait);
+
+        /*
+         * Try to get the semaphore.  If the count is > 0, then we've
+         * got the semaphore; we decrement count and exit the loop.
+         * If the count is 0 or negative, we set it to -1, indicating
+         * that we are asleep, and then sleep.
+         */
+        while (__sem_update_count(sem, -1) <= 0) {
+                schedule();
+                set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+        }
+        remove_wait_queue(&sem->wait, &wait);
+        __set_task_state(tsk, TASK_RUNNING);
+
+        /*
+         * If there are any more sleepers, wake one of them up so
+         * that it can either get the semaphore, or set count to -1
+         * indicating that there are still processes sleeping.
+         */
+        wake_up(&sem->wait);
+}
+EXPORT_SYMBOL(__down);
+
+int __sched __down_interruptible(struct semaphore * sem)
+{
+        int retval = 0;
+        struct task_struct *tsk = current;
+        DECLARE_WAITQUEUE(wait, tsk);
+
+        __set_task_state(tsk, TASK_INTERRUPTIBLE);
+        add_wait_queue_exclusive(&sem->wait, &wait);
+
+        while (__sem_update_count(sem, -1) <= 0) {
+                if (signal_pending(current)) {
+                        /*
+                         * A signal is pending - give up trying.
+                         * Set sem->count to 0 if it is negative,
+                         * since we are no longer sleeping.
+                         */
+                        __sem_update_count(sem, 0);
+                        retval = -EINTR;
+                        break;
+                }
+                schedule();
+                set_task_state(tsk, TASK_INTERRUPTIBLE);
+        }
+        remove_wait_queue(&sem->wait, &wait);
+        __set_task_state(tsk, TASK_RUNNING);
+
+        wake_up(&sem->wait);
+        return retval;
+}
+EXPORT_SYMBOL(__down_interruptible);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
new file mode 100644
index 000000000000..1292460fcde2
--- /dev/null
+++ b/arch/powerpc/kernel/setup-common.c
@@ -0,0 +1,410 @@
+/*
+ * Common boot and setup code for both 32-bit and 64-bit.
+ * Extracted from arch/powerpc/kernel/setup_64.c.
+ *
+ * Copyright (C) 2001 PPC64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/initrd.h>
+#include <linux/ide.h>
+#include <linux/seq_file.h>
+#include <linux/ioport.h>
+#include <linux/console.h>
+#include <linux/utsname.h>
+#include <linux/tty.h>
+#include <linux/root_dev.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+#include <linux/unistd.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/processor.h>
+#include <asm/pgtable.h>
+#include <asm/smp.h>
+#include <asm/elf.h>
+#include <asm/machdep.h>
+#include <asm/time.h>
+#include <asm/cputable.h>
+#include <asm/sections.h>
+#include <asm/btext.h>
+#include <asm/nvram.h>
+#include <asm/setup.h>
+#include <asm/system.h>
+#include <asm/rtas.h>
+#include <asm/iommu.h>
+#include <asm/serial.h>
+#include <asm/cache.h>
+#include <asm/page.h>
+#include <asm/mmu.h>
+#include <asm/lmb.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+/*
+ * This still seems to be needed... -- paulus
+ */ 
+struct screen_info screen_info = {
+        .orig_x = 0,
+        .orig_y = 25,
+        .orig_video_cols = 80,
+        .orig_video_lines = 25,
+        .orig_video_isVGA = 1,
+        .orig_video_points = 16
+};
+
+#ifdef __DO_IRQ_CANON
+/* XXX should go elsewhere eventually */
+int ppc_do_canonicalize_irqs;
+EXPORT_SYMBOL(ppc_do_canonicalize_irqs);
+#endif
+
+/* also used by kexec */
+void machine_shutdown(void)
+{
+        if (ppc_md.nvram_sync)
+                ppc_md.nvram_sync();
+}
+
+void machine_restart(char *cmd)
+{
+        machine_shutdown();
+        ppc_md.restart(cmd);
+#ifdef CONFIG_SMP
+        smp_send_stop();
+#endif
+        printk(KERN_EMERG "System Halted, OK to turn off power\n");
+        local_irq_disable();
+        while (1) ;
+}
+
+void machine_power_off(void)
+{
+        machine_shutdown();
+        ppc_md.power_off();
+#ifdef CONFIG_SMP
+        smp_send_stop();
+#endif
+        printk(KERN_EMERG "System Halted, OK to turn off power\n");
+        local_irq_disable();
+        while (1) ;
+}
+/* Used by the G5 thermal driver */
+EXPORT_SYMBOL_GPL(machine_power_off);
+
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL_GPL(pm_power_off);
+
+void machine_halt(void)
+{
+        machine_shutdown();
+        ppc_md.halt();
+#ifdef CONFIG_SMP
+        smp_send_stop();
+#endif
+        printk(KERN_EMERG "System Halted, OK to turn off power\n");
+        local_irq_disable();
+        while (1) ;
+}
+
+
+#ifdef CONFIG_TAU
+extern u32 cpu_temp(unsigned long cpu);
+extern u32 cpu_temp_both(unsigned long cpu);
+#endif /* CONFIG_TAU */
+
+#ifdef CONFIG_SMP
+DEFINE_PER_CPU(unsigned int, pvr);
+#endif
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+        unsigned long cpu_id = (unsigned long)v - 1;
+        unsigned int pvr;
+        unsigned short maj;
+        unsigned short min;
+
+        if (cpu_id == NR_CPUS) {
+#if defined(CONFIG_SMP) && defined(CONFIG_PPC32)
+                unsigned long bogosum = 0;
+                int i;
+                for (i = 0; i < NR_CPUS; ++i)
+                        if (cpu_online(i))
+                                bogosum += loops_per_jiffy;
+                seq_printf(m, "total bogomips\t: %lu.%02lu\n",
+                           bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
+#endif /* CONFIG_SMP && CONFIG_PPC32 */
+                seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
+
+                if (ppc_md.show_cpuinfo != NULL)
+                        ppc_md.show_cpuinfo(m);
+
+                return 0;
+        }
+
+        /* We only show online cpus: disable preempt (overzealous, I
+         * knew) to prevent cpu going down. */
+        preempt_disable();
+        if (!cpu_online(cpu_id)) {
+                preempt_enable();
+                return 0;
+        }
+
+#ifdef CONFIG_SMP
+#ifdef CONFIG_PPC64     /* XXX for now */
+        pvr = per_cpu(pvr, cpu_id);
+#else
+        pvr = cpu_data[cpu_id].pvr;
+#endif
+#else
+        pvr = mfspr(SPRN_PVR);
+#endif
+        maj = (pvr >> 8) & 0xFF;
+        min = pvr & 0xFF;
+
+        seq_printf(m, "processor\t: %lu\n", cpu_id);
+        seq_printf(m, "cpu\t\t: ");
+
+        if (cur_cpu_spec->pvr_mask)
+                seq_printf(m, "%s", cur_cpu_spec->cpu_name);
+        else
+                seq_printf(m, "unknown (%08x)", pvr);
+
+#ifdef CONFIG_ALTIVEC
+        if (cpu_has_feature(CPU_FTR_ALTIVEC))
+                seq_printf(m, ", altivec supported");
+#endif /* CONFIG_ALTIVEC */
+
+        seq_printf(m, "\n");
+
+#ifdef CONFIG_TAU
+        if (cur_cpu_spec->cpu_features & CPU_FTR_TAU) {
+#ifdef CONFIG_TAU_AVERAGE
+                /* more straightforward, but potentially misleading */
+                seq_printf(m,  "temperature \t: %u C (uncalibrated)\n",
+                           cpu_temp(i));
+#else
+                /* show the actual temp sensor range */
+                u32 temp;
+                temp = cpu_temp_both(i);
+                seq_printf(m, "temperature \t: %u-%u C (uncalibrated)\n",
+                           temp & 0xff, temp >> 16);
+#endif
+        }
+#endif /* CONFIG_TAU */
+
+        /*
+         * Assume here that all clock rates are the same in a
+         * smp system.  -- Cort
+         */
+        if (ppc_proc_freq)
+                seq_printf(m, "clock\t\t: %lu.%06luMHz\n",
+                           ppc_proc_freq / 1000000, ppc_proc_freq % 1000000);
+
+        if (ppc_md.show_percpuinfo != NULL)
+                ppc_md.show_percpuinfo(m, cpu_id);
+
+        /* If we are a Freescale core do a simple check so
+         * we dont have to keep adding cases in the future */
+        if (PVR_VER(pvr) & 0x8000) {
+                maj = PVR_MAJ(pvr);
+                min = PVR_MIN(pvr);
+        } else {
+                switch (PVR_VER(pvr)) {
+                        case 0x0020:    /* 403 family */
+                                maj = PVR_MAJ(pvr) + 1;
+                                min = PVR_MIN(pvr);
+                                break;
+                        case 0x1008:    /* 740P/750P ?? */
+                                maj = ((pvr >> 8) & 0xFF) - 1;
+                                min = pvr & 0xFF;
+                                break;
+                        default:
+                                maj = (pvr >> 8) & 0xFF;
+                                min = pvr & 0xFF;
+                                break;
+                }
+        }
+
+        seq_printf(m, "revision\t: %hd.%hd (pvr %04x %04x)\n",
+                   maj, min, PVR_VER(pvr), PVR_REV(pvr));
+
+#ifdef CONFIG_PPC32
+        seq_printf(m, "bogomips\t: %lu.%02lu\n",
+                   loops_per_jiffy / (500000/HZ),
+                   (loops_per_jiffy / (5000/HZ)) % 100);
+#endif
+
+#ifdef CONFIG_SMP
+        seq_printf(m, "\n");
+#endif
+
+        preempt_enable();
+        return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+        unsigned long i = *pos;
+
+        return i <= NR_CPUS ? (void *)(i + 1) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+        ++*pos;
+        return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+struct seq_operations cpuinfo_op = {
+        .start =c_start,
+        .next = c_next,
+        .stop = c_stop,
+        .show = show_cpuinfo,
+};
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+static int __init set_preferred_console(void)
+{
+        struct device_node *prom_stdout = NULL;
+        char *name;
+        u32 *spd;
+        int offset = 0;
+
+        DBG(" -> set_preferred_console()\n");
+
+        /* The user has requested a console so this is already set up. */
+        if (strstr(saved_command_line, "console=")) {
+                DBG(" console was specified !\n");
+                return -EBUSY;
+        }
+
+        if (!of_chosen) {
+                DBG(" of_chosen is NULL !\n");
+                return -ENODEV;
+        }
+        /* We are getting a weird phandle from OF ... */
+        /* ... So use the full path instead */
+        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+        if (name == NULL) {
+                DBG(" no linux,stdout-path !\n");
+                return -ENODEV;
+        }
+        prom_stdout = of_find_node_by_path(name);
+        if (!prom_stdout) {
+                DBG(" can't find stdout package %s !\n", name);
+                return -ENODEV;
+        }       
+        DBG("stdout is %s\n", prom_stdout->full_name);
+
+        name = (char *)get_property(prom_stdout, "name", NULL);
+        if (!name) {
+                DBG(" stdout package has no name !\n");
+                goto not_found;
+        }
+        spd = (u32 *)get_property(prom_stdout, "current-speed", NULL);
+
+        if (0)
+                ;
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+        else if (strcmp(name, "serial") == 0) {
+                int i;
+                u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
+                if (i > 8) {
+                        switch (reg[1]) {
+                                case 0x3f8:
+                                        offset = 0;
+                                        break;
+                                case 0x2f8:
+                                        offset = 1;
+                                        break;
+                                case 0x898:
+                                        offset = 2;
+                                        break;
+                                case 0x890:
+                                        offset = 3;
+                                        break;
+                                default:
+                                        /* We dont recognise the serial port */
+                                        goto not_found;
+                        }
+                }
+        }
+#endif /* CONFIG_SERIAL_8250_CONSOLE */
+#ifdef CONFIG_PPC_PSERIES
+        else if (strcmp(name, "vty") == 0) {
+                u32 *reg = (u32 *)get_property(prom_stdout, "reg", NULL);
+                char *compat = (char *)get_property(prom_stdout, "compatible", NULL);
+
+                if (reg && compat && (strcmp(compat, "hvterm-protocol") == 0)) {
+                        /* Host Virtual Serial Interface */
+                        switch (reg[0]) {
+                                case 0x30000000:
+                                        offset = 0;
+                                        break;
+                                case 0x30000001:
+                                        offset = 1;
+                                        break;
+                                default:
+                                        goto not_found;
+                        }
+                        of_node_put(prom_stdout);
+                        DBG("Found hvsi console at offset %d\n", offset);
+                        return add_preferred_console("hvsi", offset, NULL);
+                } else {
+                        /* pSeries LPAR virtual console */
+                        of_node_put(prom_stdout);
+                        DBG("Found hvc console\n");
+                        return add_preferred_console("hvc", 0, NULL);
+                }
+        }
+#endif /* CONFIG_PPC_PSERIES */
+#ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
+        else if (strcmp(name, "ch-a") == 0)
+                offset = 0;
+        else if (strcmp(name, "ch-b") == 0)
+                offset = 1;
+#endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
+        else
+                goto not_found;
+        of_node_put(prom_stdout);
+
+        DBG("Found serial console at ttyS%d\n", offset);
+
+        if (spd) {
+                static char __initdata opt[16];
+                sprintf(opt, "%d", *spd);
+                return add_preferred_console("ttyS", offset, opt);
+        } else
+                return add_preferred_console("ttyS", offset, NULL);
+
+ not_found:
+        DBG("No preferred console found !\n");
+        of_node_put(prom_stdout);
+        return -ENODEV;
+}
+console_initcall(set_preferred_console);
+#endif /* CONFIG_PPC_MULTIPLATFORM */
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
new file mode 100644
index 000000000000..9680ae99b084
--- /dev/null
+++ b/arch/powerpc/kernel/setup_32.c
@@ -0,0 +1,372 @@
+/*
+ * Common prep/pmac/chrp boot and setup code.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/initrd.h>
+#include <linux/ide.h>
+#include <linux/tty.h>
+#include <linux/bootmem.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/cpu.h>
+#include <linux/console.h>
+
+#include <asm/residual.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/processor.h>
+#include <asm/pgtable.h>
+#include <asm/setup.h>
+#include <asm/amigappc.h>
+#include <asm/smp.h>
+#include <asm/elf.h>
+#include <asm/cputable.h>
+#include <asm/bootx.h>
+#include <asm/btext.h>
+#include <asm/machdep.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/pmac_feature.h>
+#include <asm/sections.h>
+#include <asm/nvram.h>
+#include <asm/xmon.h>
+#include <asm/time.h>
+
+#define DBG(fmt...)
+
+#if defined CONFIG_KGDB
+#include <asm/kgdb.h>
+#endif
+
+extern void platform_init(void);
+extern void bootx_init(unsigned long r4, unsigned long phys);
+
+extern void ppc6xx_idle(void);
+extern void power4_idle(void);
+
+boot_infos_t *boot_infos;
+struct ide_machdep_calls ppc_ide_md;
+
+/* XXX should go elsewhere */
+int __irq_offset_value;
+EXPORT_SYMBOL(__irq_offset_value);
+
+int boot_cpuid;
+EXPORT_SYMBOL_GPL(boot_cpuid);
+int boot_cpuid_phys;
+
+unsigned long ISA_DMA_THRESHOLD;
+unsigned int DMA_MODE_READ;
+unsigned int DMA_MODE_WRITE;
+
+int have_of = 1;
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+int _machine = 0;
+
+extern void prep_init(void);
+extern void pmac_init(void);
+extern void chrp_init(void);
+
+dev_t boot_dev;
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
+#ifdef CONFIG_MAGIC_SYSRQ
+unsigned long SYSRQ_KEY = 0x54;
+#endif /* CONFIG_MAGIC_SYSRQ */
+
+#ifdef CONFIG_VGA_CONSOLE
+unsigned long vgacon_remap_base;
+#endif
+
+struct machdep_calls ppc_md;
+EXPORT_SYMBOL(ppc_md);
+
+/*
+ * These are used in binfmt_elf.c to put aux entries on the stack
+ * for each elf executable being started.
+ */
+int dcache_bsize;
+int icache_bsize;
+int ucache_bsize;
+
+/*
+ * We're called here very early in the boot.  We determine the machine
+ * type and call the appropriate low-level setup functions.
+ *  -- Cort <cort@fsmlabs.com>
+ *
+ * Note that the kernel may be running at an address which is different
+ * from the address that it was linked at, so we must use RELOC/PTRRELOC
+ * to access static data (including strings).  -- paulus
+ */
+unsigned long __init early_init(unsigned long dt_ptr)
+{
+        unsigned long offset = reloc_offset();
+
+        /* First zero the BSS -- use memset_io, some platforms don't have
+         * caches on yet */
+        memset_io(PTRRELOC(&__bss_start), 0, _end - __bss_start);
+
+        /*
+         * Identify the CPU type and fix up code sections
+         * that depend on which cpu we have.
+         */
+        identify_cpu(offset, 0);
+        do_cpu_ftr_fixups(offset);
+
+        return KERNELBASE + offset;
+}
+
+#ifdef CONFIG_PPC_MULTIPLATFORM
+/*
+ * The PPC_MULTIPLATFORM version of platform_init...
+ */
+void __init platform_init(void)
+{
+        /* if we didn't get any bootinfo telling us what we are... */
+        if (_machine == 0) {
+                /* prep boot loader tells us if we're prep or not */
+                if ( *(unsigned long *)(KERNELBASE) == (0xdeadc0de) )
+                        _machine = _MACH_prep;
+        }
+
+#ifdef CONFIG_PPC_PREP
+        /* not much more to do here, if prep */
+        if (_machine == _MACH_prep) {
+                prep_init();
+                return;
+        }
+#endif
+
+#ifdef CONFIG_ADB
+        if (strstr(cmd_line, "adb_sync")) {
+                extern int __adb_probe_sync;
+                __adb_probe_sync = 1;
+        }
+#endif /* CONFIG_ADB */
+
+        switch (_machine) {
+#ifdef CONFIG_PPC_PMAC
+        case _MACH_Pmac:
+                pmac_init();
+                break;
+#endif
+#ifdef CONFIG_PPC_CHRP
+        case _MACH_chrp:
+                chrp_init();
+                break;
+#endif
+        }
+}
+#endif
+
+/*
+ * Find out what kind of machine we're on and save any data we need
+ * from the early boot process (devtree is copied on pmac by prom_init()).
+ * This is called very early on the boot process, after a minimal
+ * MMU environment has been set up but before MMU_init is called.
+ */
+void __init machine_init(unsigned long dt_ptr, unsigned long phys)
+{
+        early_init_devtree(__va(dt_ptr));
+
+#ifdef CONFIG_CMDLINE
+        strlcpy(cmd_line, CONFIG_CMDLINE, sizeof(cmd_line));
+#endif /* CONFIG_CMDLINE */
+
+        platform_init();
+
+#ifdef CONFIG_6xx
+        ppc_md.power_save = ppc6xx_idle;
+#endif
+
+        if (ppc_md.progress)
+                ppc_md.progress("id mach(): done", 0x200);
+}
+
+#ifdef CONFIG_BOOKE_WDT
+/* Checks wdt=x and wdt_period=xx command-line option */
+int __init early_parse_wdt(char *p)
+{
+        if (p && strncmp(p, "0", 1) != 0)
+               booke_wdt_enabled = 1;
+
+        return 0;
+}
+early_param("wdt", early_parse_wdt);
+
+int __init early_parse_wdt_period (char *p)
+{
+        if (p)
+                booke_wdt_period = simple_strtoul(p, NULL, 0);
+
+        return 0;
+}
+early_param("wdt_period", early_parse_wdt_period);
+#endif  /* CONFIG_BOOKE_WDT */
+
+/* Checks "l2cr=xxxx" command-line option */
+int __init ppc_setup_l2cr(char *str)
+{
+        if (cpu_has_feature(CPU_FTR_L2CR)) {
+                unsigned long val = simple_strtoul(str, NULL, 0);
+                printk(KERN_INFO "l2cr set to %lx\n", val);
+                _set_L2CR(0);           /* force invalidate by disable cache */
+                _set_L2CR(val);         /* and enable it */
+        }
+        return 1;
+}
+__setup("l2cr=", ppc_setup_l2cr);
+
+#ifdef CONFIG_GENERIC_NVRAM
+
+/* Generic nvram hooks used by drivers/char/gen_nvram.c */
+unsigned char nvram_read_byte(int addr)
+{
+        if (ppc_md.nvram_read_val)
+                return ppc_md.nvram_read_val(addr);
+        return 0xff;
+}
+EXPORT_SYMBOL(nvram_read_byte);
+
+void nvram_write_byte(unsigned char val, int addr)
+{
+        if (ppc_md.nvram_write_val)
+                ppc_md.nvram_write_val(addr, val);
+}
+EXPORT_SYMBOL(nvram_write_byte);
+
+void nvram_sync(void)
+{
+        if (ppc_md.nvram_sync)
+                ppc_md.nvram_sync();
+}
+EXPORT_SYMBOL(nvram_sync);
+
+#endif /* CONFIG_NVRAM */
+
+static struct cpu cpu_devices[NR_CPUS];
+
+int __init ppc_init(void)
+{
+        int i;
+
+        /* clear the progress line */
+        if ( ppc_md.progress ) ppc_md.progress("             ", 0xffff);
+
+        /* register CPU devices */
+        for (i = 0; i < NR_CPUS; i++)
+                if (cpu_possible(i))
+                        register_cpu(&cpu_devices[i], i, NULL);
+
+        /* call platform init */
+        if (ppc_md.init != NULL) {
+                ppc_md.init();
+        }
+        return 0;
+}
+
+arch_initcall(ppc_init);
+
+/* Warning, IO base is not yet inited */
+void __init setup_arch(char **cmdline_p)
+{
+        extern char *klimit;
+        extern void do_init_bootmem(void);
+
+        /* so udelay does something sensible, assume <= 1000 bogomips */
+        loops_per_jiffy = 500000000 / HZ;
+
+        unflatten_device_tree();
+        finish_device_tree();
+
+#ifdef CONFIG_BOOTX_TEXT
+        init_boot_display();
+#endif
+
+#ifdef CONFIG_PPC_PMAC
+        /* This could be called "early setup arch", it must be done
+         * now because xmon need it
+         */
+        if (_machine == _MACH_Pmac)
+                pmac_feature_init();    /* New cool way */
+#endif
+
+#ifdef CONFIG_XMON
+        xmon_map_scc();
+        if (strstr(cmd_line, "xmon")) {
+                xmon_init(1);
+                debugger(NULL);
+        }
+#endif /* CONFIG_XMON */
+        if ( ppc_md.progress ) ppc_md.progress("setup_arch: enter", 0x3eab);
+
+#if defined(CONFIG_KGDB)
+        if (ppc_md.kgdb_map_scc)
+                ppc_md.kgdb_map_scc();
+        set_debug_traps();
+        if (strstr(cmd_line, "gdb")) {
+                if (ppc_md.progress)
+                        ppc_md.progress("setup_arch: kgdb breakpoint", 0x4000);
+                printk("kgdb breakpoint activated\n");
+                breakpoint();
+        }
+#endif
+
+        /*
+         * Set cache line size based on type of cpu as a default.
+         * Systems with OF can look in the properties on the cpu node(s)
+         * for a possibly more accurate value.
+         */
+        if (cpu_has_feature(CPU_FTR_SPLIT_ID_CACHE)) {
+                dcache_bsize = cur_cpu_spec->dcache_bsize;
+                icache_bsize = cur_cpu_spec->icache_bsize;
+                ucache_bsize = 0;
+        } else
+                ucache_bsize = dcache_bsize = icache_bsize
+                        = cur_cpu_spec->dcache_bsize;
+
+        /* reboot on panic */
+        panic_timeout = 180;
+
+        init_mm.start_code = PAGE_OFFSET;
+        init_mm.end_code = (unsigned long) _etext;
+        init_mm.end_data = (unsigned long) _edata;
+        init_mm.brk = (unsigned long) klimit;
+
+        /* Save unparsed command line copy for /proc/cmdline */
+        strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
+        *cmdline_p = cmd_line;
+
+        parse_early_param();
+
+        /* set up the bootmem stuff with available memory */
+        do_init_bootmem();
+        if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab);
+
+#ifdef CONFIG_PPC_OCP
+        /* Initialize OCP device list */
+        ocp_early_init();
+        if ( ppc_md.progress ) ppc_md.progress("ocp: exit", 0x3eab);
+#endif
+
+#ifdef CONFIG_DUMMY_CONSOLE
+        conswitchp = &dummy_con;
+#endif
+
+        ppc_md.setup_arch();
+        if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab);
+
+        paging_init();
+
+        /* this is for modules since _machine can be a define -- Cort */
+        ppc_md.ppc_machine = _machine;
+}
diff --git a/arch/ppc64/kernel/setup.c b/arch/powerpc/kernel/setup_64.c
index 5ac48bd64891..40c48100bf1b 100644
--- a/arch/ppc64/kernel/setup.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -37,7 +37,6 @@
 #include <asm/prom.h>
 #include <asm/processor.h>
 #include <asm/pgtable.h>
-#include <asm/bootinfo.h>
 #include <asm/smp.h>
 #include <asm/elf.h>
 #include <asm/machdep.h>
@@ -58,6 +57,9 @@
 #include <asm/mmu.h>
 #include <asm/lmb.h>
 #include <asm/iSeries/ItLpNaca.h>
+#include <asm/firmware.h>
+#include <asm/systemcfg.h>
+#include <asm/xmon.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -136,24 +138,7 @@ static struct notifier_block ppc64_panic_block = {
         .priority = INT_MIN /* may not return; must be done last */
 };
 
-/*
- * Perhaps we can put the pmac screen_info[] here
- * on pmac as well so we don't need the ifdef's.
- * Until we get multiple-console support in here
- * that is.  -- Cort
- * Maybe tie it to serial consoles, since this is really what
- * these processors use on existing boards.  -- Dan
- */ 
-struct screen_info screen_info = {
-        .orig_x = 0,
-        .orig_y = 25,
-        .orig_video_cols = 80,
-        .orig_video_lines = 25,
-        .orig_video_isVGA = 1,
-        .orig_video_points = 16
-};
-
-#if defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_SMP)
+#ifdef CONFIG_SMP
 
 static int smt_enabled_cmdline;
 
@@ -306,15 +291,13 @@ static void __init setup_cpu_maps(void)
 
         systemcfg->processorCount = num_present_cpus();
 }
-#endif /* defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_SMP) */
-
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
+#endif /* CONFIG_SMP */
 
 extern struct machdep_calls pSeries_md;
 extern struct machdep_calls pmac_md;
 extern struct machdep_calls maple_md;
 extern struct machdep_calls bpa_md;
+extern struct machdep_calls iseries_md;
 
 /* Ultimately, stuff them in an elf section like initcalls... */
 static struct machdep_calls __initdata *machines[] = {
@@ -330,6 +313,9 @@ static struct machdep_calls __initdata *machines[] = {
 #ifdef CONFIG_PPC_BPA
         &bpa_md,
 #endif
+#ifdef CONFIG_PPC_ISERIES
+        &iseries_md,
+#endif
         NULL
 };
 
@@ -401,7 +387,8 @@ void __init early_setup(unsigned long dt_ptr)
         /*
          * Initialize stab / SLB management
          */
-        stab_initialize(lpaca->stab_real);
+        if (!firmware_has_feature(FW_FEATURE_ISERIES))
+                stab_initialize(lpaca->stab_real);
 
         /*
          * Initialize the MMU Hash table and create the linear mapping
@@ -532,8 +519,6 @@ static void __init check_for_initrd(void)
 #endif /* CONFIG_BLK_DEV_INITRD */
 }
 
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
 /*
  * Do some initial setup of the system.  The parameters are those which 
  * were passed in from the bootloader.
@@ -542,14 +527,6 @@ void __init setup_system(void)
 {
         DBG(" -> setup_system()\n");
 
-#ifdef CONFIG_PPC_ISERIES
-        /* pSeries systems are identified in prom.c via OF. */
-        if (itLpNaca.xLparInstalled == 1)
-                systemcfg->platform = PLATFORM_ISERIES_LPAR;
-
-        ppc_md.init_early();
-#else /* CONFIG_PPC_ISERIES */
-
         /*
          * Unflatten the device-tree passed by prom_init or kexec
          */
@@ -592,6 +569,10 @@ void __init setup_system(void)
          */
         finish_device_tree();
 
+#ifdef CONFIG_BOOTX_TEXT
+        init_boot_display();
+#endif
+
         /*
          * Initialize xmon
          */
@@ -607,9 +588,8 @@ void __init setup_system(void)
         strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
 
         parse_early_param();
-#endif /* !CONFIG_PPC_ISERIES */
 
-#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES)
+#ifdef CONFIG_SMP
         /*
          * iSeries has already initialized the cpu maps at this point.
          */
@@ -619,7 +599,7 @@ void __init setup_system(void)
          * we can map physical -> logical CPU ids
          */
         smp_release_cpus();
-#endif /* defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES) */
+#endif
 
         printk("Starting Linux PPC64 %s\n", system_utsname.version);
 
@@ -644,51 +624,6 @@ void __init setup_system(void)
         DBG(" <- setup_system()\n");
 }
 
-/* also used by kexec */
-void machine_shutdown(void)
-{
-        if (ppc_md.nvram_sync)
-                ppc_md.nvram_sync();
-}
-
-void machine_restart(char *cmd)
-{
-        machine_shutdown();
-        ppc_md.restart(cmd);
-#ifdef CONFIG_SMP
-        smp_send_stop();
-#endif
-        printk(KERN_EMERG "System Halted, OK to turn off power\n");
-        local_irq_disable();
-        while (1) ;
-}
-
-void machine_power_off(void)
-{
-        machine_shutdown();
-        ppc_md.power_off();
-#ifdef CONFIG_SMP
-        smp_send_stop();
-#endif
-        printk(KERN_EMERG "System Halted, OK to turn off power\n");
-        local_irq_disable();
-        while (1) ;
-}
-/* Used by the G5 thermal driver */
-EXPORT_SYMBOL_GPL(machine_power_off);
-
-void machine_halt(void)
-{
-        machine_shutdown();
-        ppc_md.halt();
-#ifdef CONFIG_SMP
-        smp_send_stop();
-#endif
-        printk(KERN_EMERG "System Halted, OK to turn off power\n");
-        local_irq_disable();
-        while (1) ;
-}
-
 static int ppc64_panic_event(struct notifier_block *this,
                              unsigned long event, void *ptr)
 {
@@ -696,99 +631,6 @@ static int ppc64_panic_event(struct notifier_block *this,
         return NOTIFY_DONE;
 }
 
-
-#ifdef CONFIG_SMP
-DEFINE_PER_CPU(unsigned int, pvr);
-#endif
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-        unsigned long cpu_id = (unsigned long)v - 1;
-        unsigned int pvr;
-        unsigned short maj;
-        unsigned short min;
-
-        if (cpu_id == NR_CPUS) {
-                seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
-
-                if (ppc_md.get_cpuinfo != NULL)
-                        ppc_md.get_cpuinfo(m);
-
-                return 0;
-        }
-
-        /* We only show online cpus: disable preempt (overzealous, I
-         * knew) to prevent cpu going down. */
-        preempt_disable();
-        if (!cpu_online(cpu_id)) {
-                preempt_enable();
-                return 0;
-        }
-
-#ifdef CONFIG_SMP
-        pvr = per_cpu(pvr, cpu_id);
-#else
-        pvr = mfspr(SPRN_PVR);
-#endif
-        maj = (pvr >> 8) & 0xFF;
-        min = pvr & 0xFF;
-
-        seq_printf(m, "processor\t: %lu\n", cpu_id);
-        seq_printf(m, "cpu\t\t: ");
-
-        if (cur_cpu_spec->pvr_mask)
-                seq_printf(m, "%s", cur_cpu_spec->cpu_name);
-        else
-                seq_printf(m, "unknown (%08x)", pvr);
-
-#ifdef CONFIG_ALTIVEC
-        if (cpu_has_feature(CPU_FTR_ALTIVEC))
-                seq_printf(m, ", altivec supported");
-#endif /* CONFIG_ALTIVEC */
-
-        seq_printf(m, "\n");
-
-        /*
-         * Assume here that all clock rates are the same in a
-         * smp system.  -- Cort
-         */
-        seq_printf(m, "clock\t\t: %lu.%06luMHz\n", ppc_proc_freq / 1000000,
-                   ppc_proc_freq % 1000000);
-
-        seq_printf(m, "revision\t: %hd.%hd\n\n", maj, min);
-
-        preempt_enable();
-        return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-        return *pos <= NR_CPUS ? (void *)((*pos)+1) : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-        ++*pos;
-        return c_start(m, pos);
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-struct seq_operations cpuinfo_op = {
-        .start =c_start,
-        .next = c_next,
-        .stop = c_stop,
-        .show = show_cpuinfo,
-};
-
-/*
- * These three variables are used to save values passed to us by prom_init()
- * via the device tree. The TCE variables are needed because with a memory_limit
- * in force we may need to explicitly map the TCE are at the top of RAM.
- */
-unsigned long memory_limit;
-unsigned long tce_alloc_start;
-unsigned long tce_alloc_end;
-
 #ifdef CONFIG_PPC_ISERIES
 /*
  * On iSeries we just parse the mem=X option from the command line.
@@ -806,130 +648,6 @@ static int __init early_parsemem(char *p)
 early_param("mem", early_parsemem);
 #endif /* CONFIG_PPC_ISERIES */
 
-#ifdef CONFIG_PPC_MULTIPLATFORM
-static int __init set_preferred_console(void)
-{
-        struct device_node *prom_stdout = NULL;
-        char *name;
-        u32 *spd;
-        int offset = 0;
-
-        DBG(" -> set_preferred_console()\n");
-
-        /* The user has requested a console so this is already set up. */
-        if (strstr(saved_command_line, "console=")) {
-                DBG(" console was specified !\n");
-                return -EBUSY;
-        }
-
-        if (!of_chosen) {
-                DBG(" of_chosen is NULL !\n");
-                return -ENODEV;
-        }
-        /* We are getting a weird phandle from OF ... */
-        /* ... So use the full path instead */
-        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
-        if (name == NULL) {
-                DBG(" no linux,stdout-path !\n");
-                return -ENODEV;
-        }
-        prom_stdout = of_find_node_by_path(name);
-        if (!prom_stdout) {
-                DBG(" can't find stdout package %s !\n", name);
-                return -ENODEV;
-        }       
-        DBG("stdout is %s\n", prom_stdout->full_name);
-
-        name = (char *)get_property(prom_stdout, "name", NULL);
-        if (!name) {
-                DBG(" stdout package has no name !\n");
-                goto not_found;
-        }
-        spd = (u32 *)get_property(prom_stdout, "current-speed", NULL);
-
-        if (0)
-                ;
-#ifdef CONFIG_SERIAL_8250_CONSOLE
-        else if (strcmp(name, "serial") == 0) {
-                int i;
-                u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
-                if (i > 8) {
-                        switch (reg[1]) {
-                                case 0x3f8:
-                                        offset = 0;
-                                        break;
-                                case 0x2f8:
-                                        offset = 1;
-                                        break;
-                                case 0x898:
-                                        offset = 2;
-                                        break;
-                                case 0x890:
-                                        offset = 3;
-                                        break;
-                                default:
-                                        /* We dont recognise the serial port */
-                                        goto not_found;
-                        }
-                }
-        }
-#endif /* CONFIG_SERIAL_8250_CONSOLE */
-#ifdef CONFIG_PPC_PSERIES
-        else if (strcmp(name, "vty") == 0) {
-                u32 *reg = (u32 *)get_property(prom_stdout, "reg", NULL);
-                char *compat = (char *)get_property(prom_stdout, "compatible", NULL);
-
-                if (reg && compat && (strcmp(compat, "hvterm-protocol") == 0)) {
-                        /* Host Virtual Serial Interface */
-                        int offset;
-                        switch (reg[0]) {
-                                case 0x30000000:
-                                        offset = 0;
-                                        break;
-                                case 0x30000001:
-                                        offset = 1;
-                                        break;
-                                default:
-                                        goto not_found;
-                        }
-                        of_node_put(prom_stdout);
-                        DBG("Found hvsi console at offset %d\n", offset);
-                        return add_preferred_console("hvsi", offset, NULL);
-                } else {
-                        /* pSeries LPAR virtual console */
-                        of_node_put(prom_stdout);
-                        DBG("Found hvc console\n");
-                        return add_preferred_console("hvc", 0, NULL);
-                }
-        }
-#endif /* CONFIG_PPC_PSERIES */
-#ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
-        else if (strcmp(name, "ch-a") == 0)
-                offset = 0;
-        else if (strcmp(name, "ch-b") == 0)
-                offset = 1;
-#endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
-        else
-                goto not_found;
-        of_node_put(prom_stdout);
-
-        DBG("Found serial console at ttyS%d\n", offset);
-
-        if (spd) {
-                static char __initdata opt[16];
-                sprintf(opt, "%d", *spd);
-                return add_preferred_console("ttyS", offset, opt);
-        } else
-                return add_preferred_console("ttyS", offset, NULL);
-
- not_found:
-        DBG("No preferred console found !\n");
-        of_node_put(prom_stdout);
-        return -ENODEV;
-}
-console_initcall(set_preferred_console);
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
 #ifdef CONFIG_IRQSTACKS
 static void __init irqstack_early_init(void)
 {
@@ -983,23 +701,22 @@ void __init setup_syscall_map(void)
 {
         unsigned int i, count64 = 0, count32 = 0;
         extern unsigned long *sys_call_table;
-        extern unsigned long *sys_call_table32;
         extern unsigned long sys_ni_syscall;
 
 
         for (i = 0; i < __NR_syscalls; i++) {
-                if (sys_call_table[i] == sys_ni_syscall)
-                        continue;
-                count64++;
-                systemcfg->syscall_map_64[i >> 5] |= 0x80000000UL >> (i & 0x1f);
-        }
-        for (i = 0; i < __NR_syscalls; i++) {
-                if (sys_call_table32[i] == sys_ni_syscall)
-                        continue;
-                count32++;
-                systemcfg->syscall_map_32[i >> 5] |= 0x80000000UL >> (i & 0x1f);
+                if (sys_call_table[i*2] != sys_ni_syscall) {
+                        count64++;
+                        systemcfg->syscall_map_64[i >> 5] |=
+                                0x80000000UL >> (i & 0x1f);
+                }
+                if (sys_call_table[i*2+1] != sys_ni_syscall) {
+                        count32++;
+                        systemcfg->syscall_map_32[i >> 5] |=
+                                0x80000000UL >> (i & 0x1f);
+                }
         }
-        printk(KERN_INFO "Syscall map setup, %d 32 bits and %d 64 bits syscalls\n",
+        printk(KERN_INFO "Syscall map setup, %d 32-bit and %d 64-bit syscalls\n",
                count32, count64);
 }
 
@@ -1047,6 +764,10 @@ void __init setup_arch(char **cmdline_p)
         /* initialize the syscall map in systemcfg */
         setup_syscall_map();
 
+#ifdef CONFIG_DUMMY_CONSOLE
+        conswitchp = &dummy_con;
+#endif
+
         ppc_md.setup_arch();
 
         /* Use the default idle loop if the platform hasn't provided one. */
@@ -1091,15 +812,6 @@ void ppc64_terminate_msg(unsigned int src, const char *msg)
         printk("[terminate]%04x %s\n", src, msg);
 }
 
-/* This should only be called on processor 0 during calibrate decr */
-void __init setup_default_decr(void)
-{
-        struct paca_struct *lpaca = get_paca();
-
-        lpaca->default_decr = tb_ticks_per_jiffy;
-        lpaca->next_jiffy_update_tb = get_tb() + tb_ticks_per_jiffy;
-}
-
 #ifndef CONFIG_PPC_ISERIES
 /*
  * This function can be used by platforms to "find" legacy serial ports.
diff --git a/arch/ppc64/kernel/signal32.c b/arch/powerpc/kernel/signal_32.c
index a8b7a5a56bb4..444c3e81884c 100644
--- a/arch/ppc64/kernel/signal32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -1,56 +1,353 @@
 /*
- * signal32.c: Support 32bit signal syscalls.
+ * Signal handling for 32bit PPC and 32bit tasks on 64bit PPC
  *
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
  * Copyright (C) 2001 IBM
  * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
  *
- * These routines maintain argument size conversion between 32bit and 64bit
- * environment.
+ *  Derived from "arch/i386/kernel/signal.c"
+ *    Copyright (C) 1991, 1992 Linus Torvalds
+ *    1997-11-28  Modified for POSIX.1b signals by Richard Henderson
  *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
  */
 
 #include <linux/config.h>
 #include <linux/sched.h>
-#include <linux/mm.h> 
+#include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
-#include <linux/syscalls.h>
 #include <linux/errno.h>
 #include <linux/elf.h>
+#ifdef CONFIG_PPC64
+#include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/ptrace.h>
-#include <asm/ppc32.h>
+#else
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <linux/tty.h>
+#include <linux/binfmts.h>
+#include <linux/suspend.h>
+#endif
+
 #include <asm/uaccess.h>
+#include <asm/cacheflush.h>
+#ifdef CONFIG_PPC64
+#include <asm/ppc32.h>
 #include <asm/ppcdebug.h>
 #include <asm/unistd.h>
-#include <asm/cacheflush.h>
 #include <asm/vdso.h>
+#else
+#include <asm/ucontext.h>
+#include <asm/pgtable.h>
+#endif
 
-#define DEBUG_SIG 0
+#undef DEBUG_SIG
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
-#define GP_REGS_SIZE32  min(sizeof(elf_gregset_t32), sizeof(struct pt_regs32))
+#ifdef CONFIG_PPC64
+#define do_signal       do_signal32
+#define sys_sigsuspend  compat_sys_sigsuspend
+#define sys_rt_sigsuspend       compat_sys_rt_sigsuspend
+#define sys_rt_sigreturn        compat_sys_rt_sigreturn
+#define sys_sigaction   compat_sys_sigaction
+#define sys_swapcontext compat_sys_swapcontext
+#define sys_sigreturn   compat_sys_sigreturn
+
+#define old_sigaction   old_sigaction32
+#define sigcontext      sigcontext32
+#define mcontext        mcontext32
+#define ucontext        ucontext32
+
+/*
+ * Returning 0 means we return to userspace via
+ * ret_from_except and thus restore all user
+ * registers from *regs.  This is what we need
+ * to do when a signal has been delivered.
+ */
+#define sigreturn_exit(regs)    return 0
+
+#define GP_REGS_SIZE    min(sizeof(elf_gregset_t32), sizeof(struct pt_regs32))
+#undef __SIGNAL_FRAMESIZE
+#define __SIGNAL_FRAMESIZE      __SIGNAL_FRAMESIZE32
+#undef ELF_NVRREG
+#define ELF_NVRREG      ELF_NVRREG32
+
+/*
+ * Functions for flipping sigsets (thanks to brain dead generic
+ * implementation that makes things simple for little endian only)
+ */
+static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
+{
+        compat_sigset_t cset;
+
+        switch (_NSIG_WORDS) {
+        case 4: cset.sig[5] = set->sig[3] & 0xffffffffull;
+                cset.sig[7] = set->sig[3] >> 32;
+        case 3: cset.sig[4] = set->sig[2] & 0xffffffffull;
+                cset.sig[5] = set->sig[2] >> 32;
+        case 2: cset.sig[2] = set->sig[1] & 0xffffffffull;
+                cset.sig[3] = set->sig[1] >> 32;
+        case 1: cset.sig[0] = set->sig[0] & 0xffffffffull;
+                cset.sig[1] = set->sig[0] >> 32;
+        }
+        return copy_to_user(uset, &cset, sizeof(*uset));
+}
+
+static inline int get_sigset_t(sigset_t *set,
+                               const compat_sigset_t __user *uset)
+{
+        compat_sigset_t s32;
+
+        if (copy_from_user(&s32, uset, sizeof(*uset)))
+                return -EFAULT;
+
+        /*
+         * Swap the 2 words of the 64-bit sigset_t (they are stored
+         * in the "wrong" endian in 32-bit user storage).
+         */
+        switch (_NSIG_WORDS) {
+        case 4: set->sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
+        case 3: set->sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
+        case 2: set->sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
+        case 1: set->sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
+        }
+        return 0;
+}
+
+static inline int get_old_sigaction(struct k_sigaction *new_ka,
+                struct old_sigaction __user *act)
+{
+        compat_old_sigset_t mask;
+        compat_uptr_t handler, restorer;
+
+        if (get_user(handler, &act->sa_handler) ||
+            __get_user(restorer, &act->sa_restorer) ||
+            __get_user(new_ka->sa.sa_flags, &act->sa_flags) ||
+            __get_user(mask, &act->sa_mask))
+                return -EFAULT;
+        new_ka->sa.sa_handler = compat_ptr(handler);
+        new_ka->sa.sa_restorer = compat_ptr(restorer);
+        siginitset(&new_ka->sa.sa_mask, mask);
+        return 0;
+}
+
+static inline compat_uptr_t to_user_ptr(void *kp)
+{
+        return (compat_uptr_t)(u64)kp;
+}
+
+#define from_user_ptr(p)        compat_ptr(p)
+
+static inline int save_general_regs(struct pt_regs *regs,
+                struct mcontext __user *frame)
+{
+        elf_greg_t64 *gregs = (elf_greg_t64 *)regs;
+        int i;
+
+        for (i = 0; i <= PT_RESULT; i ++)
+                if (__put_user((unsigned int)gregs[i], &frame->mc_gregs[i]))
+                        return -EFAULT;
+        return 0;
+}
+
+static inline int restore_general_regs(struct pt_regs *regs,
+                struct mcontext __user *sr)
+{
+        elf_greg_t64 *gregs = (elf_greg_t64 *)regs;
+        int i;
+
+        for (i = 0; i <= PT_RESULT; i++) {
+                if ((i == PT_MSR) || (i == PT_SOFTE))
+                        continue;
+                if (__get_user(gregs[i], &sr->mc_gregs[i]))
+                        return -EFAULT;
+        }
+        return 0;
+}
+
+#else /* CONFIG_PPC64 */
+
+extern void sigreturn_exit(struct pt_regs *);
+
+#define GP_REGS_SIZE    min(sizeof(elf_gregset_t), sizeof(struct pt_regs))
+
+static inline int put_sigset_t(sigset_t __user *uset, sigset_t *set)
+{
+        return copy_to_user(uset, set, sizeof(*uset));
+}
+
+static inline int get_sigset_t(sigset_t *set, const sigset_t __user *uset)
+{
+        return copy_from_user(set, uset, sizeof(*uset));
+}
+
+static inline int get_old_sigaction(struct k_sigaction *new_ka,
+                struct old_sigaction __user *act)
+{
+        old_sigset_t mask;
+
+        if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+                        __get_user(new_ka->sa.sa_handler, &act->sa_handler) ||
+                        __get_user(new_ka->sa.sa_restorer, &act->sa_restorer))
+                return -EFAULT;
+        __get_user(new_ka->sa.sa_flags, &act->sa_flags);
+        __get_user(mask, &act->sa_mask);
+        siginitset(&new_ka->sa.sa_mask, mask);
+        return 0;
+}
+
+#define to_user_ptr(p)          (p)
+#define from_user_ptr(p)        (p)
+
+static inline int save_general_regs(struct pt_regs *regs,
+                struct mcontext __user *frame)
+{
+        return __copy_to_user(&frame->mc_gregs, regs, GP_REGS_SIZE);
+}
+
+static inline int restore_general_regs(struct pt_regs *regs,
+                struct mcontext __user *sr)
+{
+        /* copy up to but not including MSR */
+        if (__copy_from_user(regs, &sr->mc_gregs,
+                                PT_MSR * sizeof(elf_greg_t)))
+                return -EFAULT;
+        /* copy from orig_r3 (the word after the MSR) up to the end */
+        if (__copy_from_user(&regs->orig_gpr3, &sr->mc_gregs[PT_ORIG_R3],
+                                GP_REGS_SIZE - PT_ORIG_R3 * sizeof(elf_greg_t)))
+                return -EFAULT;
+        return 0;
+}
+
+#endif /* CONFIG_PPC64 */
+
+int do_signal(sigset_t *oldset, struct pt_regs *regs);
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+long sys_sigsuspend(old_sigset_t mask, int p2, int p3, int p4, int p6, int p7,
+               struct pt_regs *regs)
+{
+        sigset_t saveset;
+
+        mask &= _BLOCKABLE;
+        spin_lock_irq(&current->sighand->siglock);
+        saveset = current->blocked;
+        siginitset(&current->blocked, mask);
+        recalc_sigpending();
+        spin_unlock_irq(&current->sighand->siglock);
+
+        regs->result = -EINTR;
+        regs->gpr[3] = EINTR;
+        regs->ccr |= 0x10000000;
+        while (1) {
+                current->state = TASK_INTERRUPTIBLE;
+                schedule();
+                if (do_signal(&saveset, regs))
+                        sigreturn_exit(regs);
+        }
+}
+
+long sys_rt_sigsuspend(
+#ifdef CONFIG_PPC64
+                compat_sigset_t __user *unewset,
+#else
+                sigset_t __user *unewset,
+#endif
+                size_t sigsetsize, int p3, int p4,
+                int p6, int p7, struct pt_regs *regs)
+{
+        sigset_t saveset, newset;
+
+        /* XXX: Don't preclude handling different sized sigset_t's.  */
+        if (sigsetsize != sizeof(sigset_t))
+                return -EINVAL;
+
+        if (get_sigset_t(&newset, unewset))
+                return -EFAULT;
+        sigdelsetmask(&newset, ~_BLOCKABLE);
+
+        spin_lock_irq(&current->sighand->siglock);
+        saveset = current->blocked;
+        current->blocked = newset;
+        recalc_sigpending();
+        spin_unlock_irq(&current->sighand->siglock);
+
+        regs->result = -EINTR;
+        regs->gpr[3] = EINTR;
+        regs->ccr |= 0x10000000;
+        while (1) {
+                current->state = TASK_INTERRUPTIBLE;
+                schedule();
+                if (do_signal(&saveset, regs))
+                        sigreturn_exit(regs);
+        }
+}
+
+#ifdef CONFIG_PPC32
+long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, int r5,
+                int r6, int r7, int r8, struct pt_regs *regs)
+{
+        return do_sigaltstack(uss, uoss, regs->gpr[1]);
+}
+#endif
+
+long sys_sigaction(int sig, struct old_sigaction __user *act,
+                struct old_sigaction __user *oact)
+{
+        struct k_sigaction new_ka, old_ka;
+        int ret;
+
+#ifdef CONFIG_PPC64
+        if (sig < 0)
+                sig = -sig;
+#endif
+
+        if (act) {
+                if (get_old_sigaction(&new_ka, act))
+                        return -EFAULT;
+        }
+
+        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+        if (!ret && oact) {
+                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+                    __put_user(to_user_ptr(old_ka.sa.sa_handler),
+                            &oact->sa_handler) ||
+                    __put_user(to_user_ptr(old_ka.sa.sa_restorer),
+                            &oact->sa_restorer) ||
+                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
+                        return -EFAULT;
+        }
+
+        return ret;
+}
 
 /*
  * When we have signals to deliver, we set up on the
  * user stack, going down from the original stack pointer:
- *      a sigregs32 struct
- *      a sigcontext32 struct
- *      a gap of __SIGNAL_FRAMESIZE32 bytes
+ *      a sigregs struct
+ *      a sigcontext struct
+ *      a gap of __SIGNAL_FRAMESIZE bytes
  *
  * Each of these things must be a multiple of 16 bytes in size.
  *
  */
-struct sigregs32 {
-        struct mcontext32       mctx;           /* all the register values */
+struct sigregs {
+        struct mcontext mctx;           /* all the register values */
         /*
          * Programs using the rs6000/xcoff abi can save up to 19 gp
          * regs and 18 fp regs below sp before decrementing it.
@@ -64,17 +361,21 @@ struct sigregs32 {
 /*
  *  When we have rt signals to deliver, we set up on the
  *  user stack, going down from the original stack pointer:
- *      one rt_sigframe32 struct (siginfo + ucontext + ABI gap)
- *      a gap of __SIGNAL_FRAMESIZE32+16 bytes
- *  (the +16 is to get the siginfo and ucontext32 in the same
+ *      one rt_sigframe struct (siginfo + ucontext + ABI gap)
+ *      a gap of __SIGNAL_FRAMESIZE+16 bytes
+ *  (the +16 is to get the siginfo and ucontext in the same
  *  positions as in older kernels).
  *
  *  Each of these things must be a multiple of 16 bytes in size.
  *
  */
-struct rt_sigframe32 {
-        compat_siginfo_t        info;
-        struct ucontext32       uc;
+struct rt_sigframe {
+#ifdef CONFIG_PPC64
+        compat_siginfo_t info;
+#else
+        struct siginfo info;
+#endif
+        struct ucontext uc;
         /*
          * Programs using the rs6000/xcoff abi can save up to 19 gp
          * regs and 18 fp regs below sp before decrementing it.
@@ -82,76 +383,34 @@ struct rt_sigframe32 {
         int                     abigap[56];
 };
 
-
-/*
- * Common utility functions used by signal and context support
- *
- */
-
-/*
- * Restore the user process's signal mask
- * (implemented in signal.c)
- */
-extern void restore_sigmask(sigset_t *set);
-
-/*
- * Functions for flipping sigsets (thanks to brain dead generic
- * implementation that makes things simple for little endian only
- */
-static inline void compat_from_sigset(compat_sigset_t *compat, sigset_t *set)
-{
-        switch (_NSIG_WORDS) {
-        case 4: compat->sig[5] = set->sig[3] & 0xffffffffull ;
-                compat->sig[7] = set->sig[3] >> 32; 
-        case 3: compat->sig[4] = set->sig[2] & 0xffffffffull ;
-                compat->sig[5] = set->sig[2] >> 32; 
-        case 2: compat->sig[2] = set->sig[1] & 0xffffffffull ;
-                compat->sig[3] = set->sig[1] >> 32; 
-        case 1: compat->sig[0] = set->sig[0] & 0xffffffffull ;
-                compat->sig[1] = set->sig[0] >> 32; 
-        }
-}
-
-static inline void sigset_from_compat(sigset_t *set, compat_sigset_t *compat)
-{
-        switch (_NSIG_WORDS) {
-        case 4: set->sig[3] = compat->sig[6] | (((long)compat->sig[7]) << 32);
-        case 3: set->sig[2] = compat->sig[4] | (((long)compat->sig[5]) << 32);
-        case 2: set->sig[1] = compat->sig[2] | (((long)compat->sig[3]) << 32);
-        case 1: set->sig[0] = compat->sig[0] | (((long)compat->sig[1]) << 32);
-        }
-}
-
-
 /*
  * Save the current user registers on the user stack.
- * We only save the altivec registers if the process has used
- * altivec instructions at some point.
+ * We only save the altivec/spe registers if the process has used
+ * altivec/spe instructions at some point.
  */
-static int save_user_regs(struct pt_regs *regs, struct mcontext32 __user *frame, int sigret)
+static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
+                int sigret)
 {
-        elf_greg_t64 *gregs = (elf_greg_t64 *)regs;
-        int i, err = 0;
-
+#ifdef CONFIG_PPC32
+        CHECK_FULL_REGS(regs);
+#endif
         /* Make sure floating point registers are stored in regs */
         flush_fp_to_thread(current);
 
         /* save general and floating-point registers */
-        for (i = 0; i <= PT_RESULT; i ++)
-                err |= __put_user((unsigned int)gregs[i], &frame->mc_gregs[i]);
-        err |= __copy_to_user(&frame->mc_fregs, current->thread.fpr,
-                              ELF_NFPREG * sizeof(double));
-        if (err)
+        if (save_general_regs(regs, frame) ||
+            __copy_to_user(&frame->mc_fregs, current->thread.fpr,
+                    ELF_NFPREG * sizeof(double)))
                 return 1;
 
-        current->thread.fpscr = 0;      /* turn off all fp exceptions */
+        current->thread.fpscr.val = 0;  /* turn off all fp exceptions */
 
 #ifdef CONFIG_ALTIVEC
         /* save altivec registers */
         if (current->thread.used_vr) {
                 flush_altivec_to_thread(current);
                 if (__copy_to_user(&frame->mc_vregs, current->thread.vr,
-                                   ELF_NVRREG32 * sizeof(vector128)))
+                                   ELF_NVRREG * sizeof(vector128)))
                         return 1;
                 /* set MSR_VEC in the saved MSR value to indicate that
                    frame->mc_vregs contains valid data */
@@ -169,6 +428,25 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext32 __user *frame,
                 return 1;
 #endif /* CONFIG_ALTIVEC */
 
+#ifdef CONFIG_SPE
+        /* save spe registers */
+        if (current->thread.used_spe) {
+                flush_spe_to_thread(current);
+                if (__copy_to_user(&frame->mc_vregs, current->thread.evr,
+                                   ELF_NEVRREG * sizeof(u32)))
+                        return 1;
+                /* set MSR_SPE in the saved MSR value to indicate that
+                   frame->mc_vregs contains valid data */
+                if (__put_user(regs->msr | MSR_SPE, &frame->mc_gregs[PT_MSR]))
+                        return 1;
+        }
+        /* else assert((regs->msr & MSR_SPE) == 0) */
+
+        /* We always copy to/from spefscr */
+        if (__put_user(current->thread.spefscr, (u32 __user *)&frame->mc_vregs + ELF_NEVRREG))
+                return 1;
+#endif /* CONFIG_SPE */
+
         if (sigret) {
                 /* Set up the sigreturn trampoline: li r0,sigret; sc */
                 if (__put_user(0x38000000UL + sigret, &frame->tramp[0])
@@ -186,13 +464,11 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext32 __user *frame,
  * (except for MSR).
  */
 static long restore_user_regs(struct pt_regs *regs,
-                              struct mcontext32 __user *sr, int sig)
+                              struct mcontext __user *sr, int sig)
 {
-        elf_greg_t64 *gregs = (elf_greg_t64 *)regs;
-        int i;
-        long err = 0;
+        long err;
         unsigned int save_r2 = 0;
-#ifdef CONFIG_ALTIVEC
+#if defined(CONFIG_ALTIVEC) || defined(CONFIG_SPE)
         unsigned long msr;
 #endif
 
@@ -202,11 +478,7 @@ static long restore_user_regs(struct pt_regs *regs,
          */
         if (!sig)
                 save_r2 = (unsigned int)regs->gpr[2];
-        for (i = 0; i <= PT_RESULT; i++) {
-                if ((i == PT_MSR) || (i == PT_SOFTE))
-                        continue;
-                err |= __get_user(gregs[i], &sr->mc_gregs[i]);
-        }
+        err = restore_general_regs(regs, sr);
         if (!sig)
                 regs->gpr[2] = (unsigned long) save_r2;
         if (err)
@@ -229,135 +501,51 @@ static long restore_user_regs(struct pt_regs *regs,
                                      sizeof(sr->mc_vregs)))
                         return 1;
         } else if (current->thread.used_vr)
-                memset(current->thread.vr, 0, ELF_NVRREG32 * sizeof(vector128));
+                memset(current->thread.vr, 0, ELF_NVRREG * sizeof(vector128));
 
         /* Always get VRSAVE back */
         if (__get_user(current->thread.vrsave, (u32 __user *)&sr->mc_vregs[32]))
                 return 1;
 #endif /* CONFIG_ALTIVEC */
 
+#ifdef CONFIG_SPE
+        /* force the process to reload the spe registers from
+           current->thread when it next does spe instructions */
+        regs->msr &= ~MSR_SPE;
+        if (!__get_user(msr, &sr->mc_gregs[PT_MSR]) && (msr & MSR_SPE) != 0) {
+                /* restore spe registers from the stack */
+                if (__copy_from_user(current->thread.evr, &sr->mc_vregs,
+                                     ELF_NEVRREG * sizeof(u32)))
+                        return 1;
+        } else if (current->thread.used_spe)
+                memset(current->thread.evr, 0, ELF_NEVRREG * sizeof(u32));
+
+        /* Always get SPEFSCR back */
+        if (__get_user(current->thread.spefscr, (u32 __user *)&sr->mc_vregs + ELF_NEVRREG))
+                return 1;
+#endif /* CONFIG_SPE */
+
 #ifndef CONFIG_SMP
         preempt_disable();
         if (last_task_used_math == current)
                 last_task_used_math = NULL;
         if (last_task_used_altivec == current)
                 last_task_used_altivec = NULL;
+#ifdef CONFIG_SPE
+        if (last_task_used_spe == current)
+                last_task_used_spe = NULL;
+#endif
         preempt_enable();
 #endif
         return 0;
 }
 
-
-/*
- *  Start of nonRT signal support
- *
- *     sigset_t is 32 bits for non-rt signals
- *
- *  System Calls
- *       sigaction                sys32_sigaction
- *       sigreturn                sys32_sigreturn
- *
- *  Note sigsuspend has no special 32 bit routine - uses the 64 bit routine
- *
- *  Other routines
- *        setup_frame32
- */
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-long sys32_sigsuspend(old_sigset_t mask, int p2, int p3, int p4, int p6, int p7,
-               struct pt_regs *regs)
-{
-        sigset_t saveset;
-
-        mask &= _BLOCKABLE;
-        spin_lock_irq(&current->sighand->siglock);
-        saveset = current->blocked;
-        siginitset(&current->blocked, mask);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        regs->result = -EINTR;
-        regs->gpr[3] = EINTR;
-        regs->ccr |= 0x10000000;
-        while (1) {
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                if (do_signal32(&saveset, regs))
-                        /*
-                         * Returning 0 means we return to userspace via
-                         * ret_from_except and thus restore all user
-                         * registers from *regs.  This is what we need
-                         * to do when a signal has been delivered.
-                         */
-                        return 0;
-        }
-}
-
-long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
-                struct old_sigaction32 __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-        
-        if (sig < 0)
-                sig = -sig;
-
-        if (act) {
-                compat_old_sigset_t mask;
-                compat_uptr_t handler, restorer;
-
-                if (get_user(handler, &act->sa_handler) ||
-                    __get_user(restorer, &act->sa_restorer) ||
-                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
-                    __get_user(mask, &act->sa_mask))
-                        return -EFAULT;
-                new_ka.sa.sa_handler = compat_ptr(handler);
-                new_ka.sa.sa_restorer = compat_ptr(restorer);
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-
-        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-        if (!ret && oact) {
-                if (put_user((long)old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer) ||
-                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
-                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
-                        return -EFAULT;
-        }
-
-        return ret;
-}
-
-
-
-/*
- *  Start of RT signal support
- *
- *     sigset_t is 64 bits for rt signals
- *
- *  System Calls
- *       sigaction                sys32_rt_sigaction
- *       sigpending               sys32_rt_sigpending
- *       sigprocmask              sys32_rt_sigprocmask
- *       sigreturn                sys32_rt_sigreturn
- *       sigqueueinfo             sys32_rt_sigqueueinfo
- *       sigsuspend               sys32_rt_sigsuspend
- *
- *  Other routines
- *        setup_rt_frame32
- *        copy_siginfo_to_user32
- *        siginfo32to64
- */
-
-
-long sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
+#ifdef CONFIG_PPC64
+long compat_sys_rt_sigaction(int sig, const struct sigaction32 __user *act,
                 struct sigaction32 __user *oact, size_t sigsetsize)
 {
         struct k_sigaction new_ka, old_ka;
         int ret;
-        compat_sigset_t set32;
 
         /* XXX: Don't preclude handling different sized sigset_t's.  */
         if (sigsetsize != sizeof(compat_sigset_t))
@@ -368,9 +556,7 @@ long sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
 
                 ret = get_user(handler, &act->sa_handler);
                 new_ka.sa.sa_handler = compat_ptr(handler);
-                ret |= __copy_from_user(&set32, &act->sa_mask,
-                                        sizeof(compat_sigset_t));
-                sigset_from_compat(&new_ka.sa.sa_mask, &set32);
+                ret |= get_sigset_t(&new_ka.sa.sa_mask, &act->sa_mask);
                 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
                 if (ret)
                         return -EFAULT;
@@ -378,10 +564,8 @@ long sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
 
         ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
         if (!ret && oact) {
-                compat_from_sigset(&set32, &old_ka.sa.sa_mask);
                 ret = put_user((long)old_ka.sa.sa_handler, &oact->sa_handler);
-                ret |= __copy_to_user(&oact->sa_mask, &set32,
-                                      sizeof(compat_sigset_t));
+                ret |= put_sigset_t(&oact->sa_mask, &old_ka.sa.sa_mask);
                 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
         }
         return ret;
@@ -394,41 +578,37 @@ long sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
  * of a signed int (msr in 32-bit mode) and the register representation
  * of a signed int (msr in 64-bit mode) is performed.
  */
-long sys32_rt_sigprocmask(u32 how, compat_sigset_t __user *set,
+long compat_sys_rt_sigprocmask(u32 how, compat_sigset_t __user *set,
                 compat_sigset_t __user *oset, size_t sigsetsize)
 {
         sigset_t s;
         sigset_t __user *up;
-        compat_sigset_t s32;
         int ret;
         mm_segment_t old_fs = get_fs();
 
         if (set) {
-                if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
-                        return -EFAULT;    
-                sigset_from_compat(&s, &s32);
+                if (get_sigset_t(&s, set))
+                        return -EFAULT;
         }
-        
+
         set_fs(KERNEL_DS);
         /* This is valid because of the set_fs() */
         up = (sigset_t __user *) &s;
         ret = sys_rt_sigprocmask((int)how, set ? up : NULL, oset ? up : NULL,
-                                 sigsetsize); 
+                                 sigsetsize);
         set_fs(old_fs);
         if (ret)
                 return ret;
         if (oset) {
-                compat_from_sigset(&s32, &s);
-                if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
+                if (put_sigset_t(oset, &s))
                         return -EFAULT;
         }
         return 0;
 }
 
-long sys32_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
+long compat_sys_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
 {
         sigset_t s;
-        compat_sigset_t s32;
         int ret;
         mm_segment_t old_fs = get_fs();
 
@@ -437,8 +617,7 @@ long sys32_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
         ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
         set_fs(old_fs);
         if (!ret) {
-                compat_from_sigset(&s32, &s);
-                if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
+                if (put_sigset_t(set, &s))
                         return -EFAULT;
         }
         return ret;
@@ -500,6 +679,8 @@ int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s)
         return err;
 }
 
+#define copy_siginfo_to_user    copy_siginfo_to_user32
+
 /*
  * Note: it is necessary to treat pid and sig as unsigned ints, with the
  * corresponding cast to a signed int to insure that the proper conversion
@@ -507,12 +688,12 @@ int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s)
  * (msr in 32-bit mode) and the register representation of a signed int
  * (msr in 64-bit mode) is performed.
  */
-long sys32_rt_sigqueueinfo(u32 pid, u32 sig, compat_siginfo_t __user *uinfo)
+long compat_sys_rt_sigqueueinfo(u32 pid, u32 sig, compat_siginfo_t __user *uinfo)
 {
         siginfo_t info;
         int ret;
         mm_segment_t old_fs = get_fs();
-        
+
         if (copy_from_user (&info, uinfo, 3*sizeof(int)) ||
             copy_from_user (info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE32))
                 return -EFAULT;
@@ -522,58 +703,14 @@ long sys32_rt_sigqueueinfo(u32 pid, u32 sig, compat_siginfo_t __user *uinfo)
         set_fs (old_fs);
         return ret;
 }
-
-int sys32_rt_sigsuspend(compat_sigset_t __user * unewset, size_t sigsetsize, int p3,
-                int p4, int p6, int p7, struct pt_regs *regs)
-{
-        sigset_t saveset, newset;
-        compat_sigset_t s32;
-
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-
-        if (copy_from_user(&s32, unewset, sizeof(s32)))
-                return -EFAULT;
-
-        /*
-         * Swap the 2 words of the 64-bit sigset_t (they are stored
-         * in the "wrong" endian in 32-bit user storage).
-         */
-        sigset_from_compat(&newset, &s32);
-
-        sigdelsetmask(&newset, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        saveset = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        regs->result = -EINTR;
-        regs->gpr[3] = EINTR;
-        regs->ccr |= 0x10000000;
-        while (1) {
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                if (do_signal32(&saveset, regs))
-                        /*
-                         * Returning 0 means we return to userspace via
-                         * ret_from_except and thus restore all user
-                         * registers from *regs.  This is what we need
-                         * to do when a signal has been delivered.
-                         */
-                        return 0;
-        }
-}
-
 /*
  *  Start Alternate signal stack support
  *
  *  System Calls
- *       sigaltatck               sys32_sigaltstack
+ *       sigaltatck               compat_sys_sigaltstack
  */
 
-int sys32_sigaltstack(u32 __new, u32 __old, int r5,
+int compat_sys_sigaltstack(u32 __new, u32 __old, int r5,
                       int r6, int r7, int r8, struct pt_regs *regs)
 {
         stack_32_t __user * newstack = (stack_32_t __user *)(long) __new;
@@ -615,76 +752,94 @@ int sys32_sigaltstack(u32 __new, u32 __old, int r5,
                 return -EFAULT;
         return ret;
 }
+#endif /* CONFIG_PPC64 */
+
 
+/*
+ * Restore the user process's signal mask
+ */
+#ifdef CONFIG_PPC64
+extern void restore_sigmask(sigset_t *set);
+#else /* CONFIG_PPC64 */
+static void restore_sigmask(sigset_t *set)
+{
+        sigdelsetmask(set, ~_BLOCKABLE);
+        spin_lock_irq(&current->sighand->siglock);
+        current->blocked = *set;
+        recalc_sigpending();
+        spin_unlock_irq(&current->sighand->siglock);
+}
+#endif
 
 /*
  * Set up a signal frame for a "real-time" signal handler
  * (one which gets siginfo).
  */
-static int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
-                              siginfo_t *info, sigset_t *oldset,
-                              struct pt_regs * regs, unsigned long newsp)
+static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
+                siginfo_t *info, sigset_t *oldset,
+                struct pt_regs *regs, unsigned long newsp)
 {
-        struct rt_sigframe32 __user *rt_sf;
-        struct mcontext32 __user *frame;
+        struct rt_sigframe __user *rt_sf;
+        struct mcontext __user *frame;
         unsigned long origsp = newsp;
-        compat_sigset_t c_oldset;
 
         /* Set up Signal Frame */
         /* Put a Real Time Context onto stack */
         newsp -= sizeof(*rt_sf);
-        rt_sf = (struct rt_sigframe32 __user *)newsp;
+        rt_sf = (struct rt_sigframe __user *)newsp;
 
         /* create a stack frame for the caller of the handler */
-        newsp -= __SIGNAL_FRAMESIZE32 + 16;
+        newsp -= __SIGNAL_FRAMESIZE + 16;
 
         if (!access_ok(VERIFY_WRITE, (void __user *)newsp, origsp - newsp))
                 goto badframe;
 
-        compat_from_sigset(&c_oldset, oldset);
-
         /* Put the siginfo & fill in most of the ucontext */
-        if (copy_siginfo_to_user32(&rt_sf->info, info)
+        if (copy_siginfo_to_user(&rt_sf->info, info)
             || __put_user(0, &rt_sf->uc.uc_flags)
             || __put_user(0, &rt_sf->uc.uc_link)
             || __put_user(current->sas_ss_sp, &rt_sf->uc.uc_stack.ss_sp)
             || __put_user(sas_ss_flags(regs->gpr[1]),
                           &rt_sf->uc.uc_stack.ss_flags)
             || __put_user(current->sas_ss_size, &rt_sf->uc.uc_stack.ss_size)
-            || __put_user((u32)(u64)&rt_sf->uc.uc_mcontext, &rt_sf->uc.uc_regs)
-            || __copy_to_user(&rt_sf->uc.uc_sigmask, &c_oldset, sizeof(c_oldset)))
+            || __put_user(to_user_ptr(&rt_sf->uc.uc_mcontext),
+                    &rt_sf->uc.uc_regs)
+            || put_sigset_t(&rt_sf->uc.uc_sigmask, oldset))
                 goto badframe;
 
         /* Save user registers on the stack */
         frame = &rt_sf->uc.uc_mcontext;
-        if (put_user(regs->gpr[1], (u32 __user *)newsp))
-                goto badframe;
-
+#ifdef CONFIG_PPC64
         if (vdso32_rt_sigtramp && current->thread.vdso_base) {
                 if (save_user_regs(regs, frame, 0))
                         goto badframe;
                 regs->link = current->thread.vdso_base + vdso32_rt_sigtramp;
-        } else {
+        } else
+#endif
+        {
                 if (save_user_regs(regs, frame, __NR_rt_sigreturn))
                         goto badframe;
                 regs->link = (unsigned long) frame->tramp;
         }
-        regs->gpr[1] = (unsigned long) newsp;
+        if (put_user(regs->gpr[1], (u32 __user *)newsp))
+                goto badframe;
+        regs->gpr[1] = newsp;
         regs->gpr[3] = sig;
         regs->gpr[4] = (unsigned long) &rt_sf->info;
         regs->gpr[5] = (unsigned long) &rt_sf->uc;
         regs->gpr[6] = (unsigned long) rt_sf;
         regs->nip = (unsigned long) ka->sa.sa_handler;
         regs->trap = 0;
+#ifdef CONFIG_PPC64
         regs->result = 0;
 
         if (test_thread_flag(TIF_SINGLESTEP))
                 ptrace_notify(SIGTRAP);
-
+#endif
         return 1;
 
 badframe:
-#if DEBUG_SIG
+#ifdef DEBUG_SIG
         printk("badframe in handle_rt_signal, regs=%p frame=%p newsp=%lx\n",
                regs, frame, newsp);
 #endif
@@ -692,46 +847,50 @@ badframe:
         return 0;
 }
 
-static long do_setcontext32(struct ucontext32 __user *ucp, struct pt_regs *regs, int sig)
+static int do_setcontext(struct ucontext __user *ucp, struct pt_regs *regs, int sig)
 {
-        compat_sigset_t c_set;
         sigset_t set;
-        u32 mcp;
+        struct mcontext __user *mcp;
+
+        if (get_sigset_t(&set, &ucp->uc_sigmask))
+                return -EFAULT;
+#ifdef CONFIG_PPC64
+        {
+                u32 cmcp;
 
-        if (__copy_from_user(&c_set, &ucp->uc_sigmask, sizeof(c_set))
-            || __get_user(mcp, &ucp->uc_regs))
+                if (__get_user(cmcp, &ucp->uc_regs))
+                        return -EFAULT;
+                mcp = (struct mcontext __user *)(u64)cmcp;
+        }
+#else
+        if (__get_user(mcp, &ucp->uc_regs))
                 return -EFAULT;
-        sigset_from_compat(&set, &c_set);
+#endif
         restore_sigmask(&set);
-        if (restore_user_regs(regs, (struct mcontext32 __user *)(u64)mcp, sig))
+        if (restore_user_regs(regs, mcp, sig))
                 return -EFAULT;
 
         return 0;
 }
 
-/*
- * Handle {get,set,swap}_context operations for 32 bits processes
- */
-
-long sys32_swapcontext(struct ucontext32 __user *old_ctx,
-                       struct ucontext32 __user *new_ctx,
+long sys_swapcontext(struct ucontext __user *old_ctx,
+                       struct ucontext __user *new_ctx,
                        int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
 {
         unsigned char tmp;
-        compat_sigset_t c_set;
 
         /* Context size is for future use. Right now, we only make sure
          * we are passed something we understand
          */
-        if (ctx_size < sizeof(struct ucontext32))
+        if (ctx_size < sizeof(struct ucontext))
                 return -EINVAL;
 
         if (old_ctx != NULL) {
-                compat_from_sigset(&c_set, &current->blocked);
                 if (!access_ok(VERIFY_WRITE, old_ctx, sizeof(*old_ctx))
                     || save_user_regs(regs, &old_ctx->uc_mcontext, 0)
-                    || __copy_to_user(&old_ctx->uc_sigmask, &c_set, sizeof(c_set))
-                    || __put_user((u32)(u64)&old_ctx->uc_mcontext, &old_ctx->uc_regs))
+                    || put_sigset_t(&old_ctx->uc_sigmask, &current->blocked)
+                    || __put_user(to_user_ptr(&old_ctx->uc_mcontext),
+                            &old_ctx->uc_regs))
                         return -EFAULT;
         }
         if (new_ctx == NULL)
@@ -752,27 +911,26 @@ long sys32_swapcontext(struct ucontext32 __user *old_ctx,
          * or if another thread unmaps the region containing the context.
          * We kill the task with a SIGSEGV in this situation.
          */
-        if (do_setcontext32(new_ctx, regs, 0))
+        if (do_setcontext(new_ctx, regs, 0))
                 do_exit(SIGSEGV);
-
+        sigreturn_exit(regs);
+        /* doesn't actually return back to here */
         return 0;
 }
 
-long sys32_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
+long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
                      struct pt_regs *regs)
 {
-        struct rt_sigframe32 __user *rt_sf;
-        int ret;
-
+        struct rt_sigframe __user *rt_sf;
 
         /* Always make any pending restarted system calls return -EINTR */
         current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-        rt_sf = (struct rt_sigframe32 __user *)
-                (regs->gpr[1] + __SIGNAL_FRAMESIZE32 + 16);
+        rt_sf = (struct rt_sigframe __user *)
+                (regs->gpr[1] + __SIGNAL_FRAMESIZE + 16);
         if (!access_ok(VERIFY_READ, rt_sf, sizeof(*rt_sf)))
                 goto bad;
-        if (do_setcontext32(&rt_sf->uc, regs, 1))
+        if (do_setcontext(&rt_sf->uc, regs, 1))
                 goto bad;
 
         /*
@@ -781,62 +939,165 @@ long sys32_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
          * signal return.  But other architectures do this and we have
          * always done it up until now so it is probably better not to
          * change it.  -- paulus
-         * We use the sys32_ version that does the 32/64 bits conversion
+         */
+#ifdef CONFIG_PPC64
+        /*
+         * We use the compat_sys_ version that does the 32/64 bits conversion
          * and takes userland pointer directly. What about error checking ?
          * nobody does any...
          */
-        sys32_sigaltstack((u32)(u64)&rt_sf->uc.uc_stack, 0, 0, 0, 0, 0, regs);
-
-        ret = regs->result;
-
-        return ret;
+        compat_sys_sigaltstack((u32)(u64)&rt_sf->uc.uc_stack, 0, 0, 0, 0, 0, regs);
+        return (int)regs->result;
+#else
+        do_sigaltstack(&rt_sf->uc.uc_stack, NULL, regs->gpr[1]);
+        sigreturn_exit(regs);           /* doesn't return here */
+        return 0;
+#endif
 
  bad:
         force_sig(SIGSEGV, current);
         return 0;
 }
 
+#ifdef CONFIG_PPC32
+int sys_debug_setcontext(struct ucontext __user *ctx,
+                         int ndbg, struct sig_dbg_op __user *dbg,
+                         int r6, int r7, int r8,
+                         struct pt_regs *regs)
+{
+        struct sig_dbg_op op;
+        int i;
+        unsigned long new_msr = regs->msr;
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+        unsigned long new_dbcr0 = current->thread.dbcr0;
+#endif
+
+        for (i=0; i<ndbg; i++) {
+                if (__copy_from_user(&op, dbg, sizeof(op)))
+                        return -EFAULT;
+                switch (op.dbg_type) {
+                case SIG_DBG_SINGLE_STEPPING:
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+                        if (op.dbg_value) {
+                                new_msr |= MSR_DE;
+                                new_dbcr0 |= (DBCR0_IDM | DBCR0_IC);
+                        } else {
+                                new_msr &= ~MSR_DE;
+                                new_dbcr0 &= ~(DBCR0_IDM | DBCR0_IC);
+                        }
+#else
+                        if (op.dbg_value)
+                                new_msr |= MSR_SE;
+                        else
+                                new_msr &= ~MSR_SE;
+#endif
+                        break;
+                case SIG_DBG_BRANCH_TRACING:
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+                        return -EINVAL;
+#else
+                        if (op.dbg_value)
+                                new_msr |= MSR_BE;
+                        else
+                                new_msr &= ~MSR_BE;
+#endif
+                        break;
+
+                default:
+                        return -EINVAL;
+                }
+        }
+
+        /* We wait until here to actually install the values in the
+           registers so if we fail in the above loop, it will not
+           affect the contents of these registers.  After this point,
+           failure is a problem, anyway, and it's very unlikely unless
+           the user is really doing something wrong. */
+        regs->msr = new_msr;
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+        current->thread.dbcr0 = new_dbcr0;
+#endif
+
+        /*
+         * If we get a fault copying the context into the kernel's
+         * image of the user's registers, we can't just return -EFAULT
+         * because the user's registers will be corrupted.  For instance
+         * the NIP value may have been updated but not some of the
+         * other registers.  Given that we have done the access_ok
+         * and successfully read the first and last bytes of the region
+         * above, this should only happen in an out-of-memory situation
+         * or if another thread unmaps the region containing the context.
+         * We kill the task with a SIGSEGV in this situation.
+         */
+        if (do_setcontext(ctx, regs, 1)) {
+                force_sig(SIGSEGV, current);
+                goto out;
+        }
+
+        /*
+         * It's not clear whether or why it is desirable to save the
+         * sigaltstack setting on signal delivery and restore it on
+         * signal return.  But other architectures do this and we have
+         * always done it up until now so it is probably better not to
+         * change it.  -- paulus
+         */
+        do_sigaltstack(&ctx->uc_stack, NULL, regs->gpr[1]);
+
+        sigreturn_exit(regs);
+        /* doesn't actually return back to here */
+
+ out:
+        return 0;
+}
+#endif
 
 /*
  * OK, we're invoking a handler
  */
-static int handle_signal32(unsigned long sig, struct k_sigaction *ka,
-                            siginfo_t *info, sigset_t *oldset,
-                            struct pt_regs * regs, unsigned long newsp)
+static int handle_signal(unsigned long sig, struct k_sigaction *ka,
+                siginfo_t *info, sigset_t *oldset, struct pt_regs *regs,
+                unsigned long newsp)
 {
-        struct sigcontext32 __user *sc;
-        struct sigregs32 __user *frame;
+        struct sigcontext __user *sc;
+        struct sigregs __user *frame;
         unsigned long origsp = newsp;
 
         /* Set up Signal Frame */
-        newsp -= sizeof(struct sigregs32);
-        frame = (struct sigregs32 __user *) newsp;
+        newsp -= sizeof(struct sigregs);
+        frame = (struct sigregs __user *) newsp;
 
         /* Put a sigcontext on the stack */
         newsp -= sizeof(*sc);
-        sc = (struct sigcontext32 __user *) newsp;
+        sc = (struct sigcontext __user *) newsp;
 
         /* create a stack frame for the caller of the handler */
-        newsp -= __SIGNAL_FRAMESIZE32;
+        newsp -= __SIGNAL_FRAMESIZE;
 
         if (!access_ok(VERIFY_WRITE, (void __user *) newsp, origsp - newsp))
                 goto badframe;
 
 #if _NSIG != 64
-#error "Please adjust handle_signal32()"
+#error "Please adjust handle_signal()"
 #endif
-        if (__put_user((u32)(u64)ka->sa.sa_handler, &sc->handler)
+        if (__put_user(to_user_ptr(ka->sa.sa_handler), &sc->handler)
             || __put_user(oldset->sig[0], &sc->oldmask)
+#ifdef CONFIG_PPC64
             || __put_user((oldset->sig[0] >> 32), &sc->_unused[3])
-            || __put_user((u32)(u64)frame, &sc->regs)
+#else
+            || __put_user(oldset->sig[1], &sc->_unused[3])
+#endif
+            || __put_user(to_user_ptr(frame), &sc->regs)
             || __put_user(sig, &sc->signal))
                 goto badframe;
 
+#ifdef CONFIG_PPC64
         if (vdso32_sigtramp && current->thread.vdso_base) {
                 if (save_user_regs(regs, &frame->mctx, 0))
                         goto badframe;
                 regs->link = current->thread.vdso_base + vdso32_sigtramp;
-        } else {
+        } else
+#endif
+        {
                 if (save_user_regs(regs, &frame->mctx, __NR_sigreturn))
                         goto badframe;
                 regs->link = (unsigned long) frame->mctx.tramp;
@@ -844,22 +1105,24 @@ static int handle_signal32(unsigned long sig, struct k_sigaction *ka,
 
         if (put_user(regs->gpr[1], (u32 __user *)newsp))
                 goto badframe;
-        regs->gpr[1] = (unsigned long) newsp;
+        regs->gpr[1] = newsp;
         regs->gpr[3] = sig;
         regs->gpr[4] = (unsigned long) sc;
         regs->nip = (unsigned long) ka->sa.sa_handler;
         regs->trap = 0;
+#ifdef CONFIG_PPC64
         regs->result = 0;
 
         if (test_thread_flag(TIF_SINGLESTEP))
                 ptrace_notify(SIGTRAP);
+#endif
 
         return 1;
 
 badframe:
-#if DEBUG_SIG
-        printk("badframe in handle_signal, regs=%p frame=%x newsp=%x\n",
-               regs, frame, *newspp);
+#ifdef DEBUG_SIG
+        printk("badframe in handle_signal, regs=%p frame=%p newsp=%lx\n",
+               regs, frame, newsp);
 #endif
         force_sigsegv(sig, current);
         return 0;
@@ -868,65 +1131,69 @@ badframe:
 /*
  * Do a signal return; undo the signal stack.
  */
-long sys32_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
+long sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
                        struct pt_regs *regs)
 {
-        struct sigcontext32 __user *sc;
-        struct sigcontext32 sigctx;
-        struct mcontext32 __user *sr;
+        struct sigcontext __user *sc;
+        struct sigcontext sigctx;
+        struct mcontext __user *sr;
         sigset_t set;
-        int ret;
 
         /* Always make any pending restarted system calls return -EINTR */
         current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-        sc = (struct sigcontext32 __user *)(regs->gpr[1] + __SIGNAL_FRAMESIZE32);
+        sc = (struct sigcontext __user *)(regs->gpr[1] + __SIGNAL_FRAMESIZE);
         if (copy_from_user(&sigctx, sc, sizeof(sigctx)))
                 goto badframe;
 
+#ifdef CONFIG_PPC64
         /*
          * Note that PPC32 puts the upper 32 bits of the sigmask in the
          * unused part of the signal stackframe
          */
         set.sig[0] = sigctx.oldmask + ((long)(sigctx._unused[3]) << 32);
+#else
+        set.sig[0] = sigctx.oldmask;
+        set.sig[1] = sigctx._unused[3];
+#endif
         restore_sigmask(&set);
 
-        sr = (struct mcontext32 __user *)(u64)sigctx.regs;
+        sr = (struct mcontext __user *)from_user_ptr(sigctx.regs);
         if (!access_ok(VERIFY_READ, sr, sizeof(*sr))
             || restore_user_regs(regs, sr, 1))
                 goto badframe;
 
-        ret = regs->result;
-        return ret;
+#ifdef CONFIG_PPC64
+        return (int)regs->result;
+#else
+        sigreturn_exit(regs);           /* doesn't return */
+        return 0;
+#endif
 
 badframe:
         force_sig(SIGSEGV, current);
         return 0;
 }
 
-
-
-/*
- *  Start of do_signal32 routine
- *
- *   This routine gets control when a pending signal needs to be processed
- *     in the 32 bit target thread -
- *
- *   It handles both rt and non-rt signals
- */
-
 /*
  * Note that 'init' is a special process: it doesn't get signals it doesn't
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-
-int do_signal32(sigset_t *oldset, struct pt_regs *regs)
+int do_signal(sigset_t *oldset, struct pt_regs *regs)
 {
         siginfo_t info;
+        struct k_sigaction ka;
         unsigned int frame, newsp;
         int signr, ret;
-        struct k_sigaction ka;
+
+#ifdef CONFIG_PPC32
+        if (try_to_freeze()) {
+                signr = 0;
+                if (!signal_pending(current))
+                        goto no_signal;
+        }
+#endif
 
         if (!oldset)
                 oldset = &current->blocked;
@@ -934,7 +1201,9 @@ int do_signal32(sigset_t *oldset, struct pt_regs *regs)
         newsp = frame = 0;
 
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-
+#ifdef CONFIG_PPC32
+no_signal:
+#endif
         if (TRAP(regs) == 0x0C00                /* System Call! */
             && regs->ccr & 0x10000000           /* error signalled */
             && ((ret = regs->gpr[3]) == ERESTARTSYS
@@ -964,12 +1233,13 @@ int do_signal32(sigset_t *oldset, struct pt_regs *regs)
                 return 0;               /* no signals delivered */
 
         if ((ka.sa.sa_flags & SA_ONSTACK) && current->sas_ss_size
-            && (!on_sig_stack(regs->gpr[1])))
-                newsp = (current->sas_ss_sp + current->sas_ss_size);
+            && !on_sig_stack(regs->gpr[1]))
+                newsp = current->sas_ss_sp + current->sas_ss_size;
         else
                 newsp = regs->gpr[1];
         newsp &= ~0xfUL;
 
+#ifdef CONFIG_PPC64
         /*
          * Reenable the DABR before delivering the signal to
          * user space. The DABR will have been cleared if it
@@ -977,12 +1247,13 @@ int do_signal32(sigset_t *oldset, struct pt_regs *regs)
          */
         if (current->thread.dabr)
                 set_dabr(current->thread.dabr);
+#endif
 
         /* Whee!  Actually deliver the signal.  */
         if (ka.sa.sa_flags & SA_SIGINFO)
-                ret = handle_rt_signal32(signr, &ka, &info, oldset, regs, newsp);
+                ret = handle_rt_signal(signr, &ka, &info, oldset, regs, newsp);
         else
-                ret = handle_signal32(signr, &ka, &info, oldset, regs, newsp);
+                ret = handle_signal(signr, &ka, &info, oldset, regs, newsp);
 
         if (ret) {
                 spin_lock_irq(&current->sighand->siglock);
diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index e93c13458910..a8210ed5c686 100644
--- a/arch/ppc64/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -53,8 +53,7 @@
 #include <asm/time.h>
 #include <asm/mmu_context.h>
 #include <asm/systemcfg.h>
-
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 /* readdir & getdents */
 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
@@ -114,96 +113,6 @@ out:
         return error;
 }
 
-struct linux_dirent32 {
-        u32             d_ino;
-        u32             d_off;
-        unsigned short  d_reclen;
-        char            d_name[1];
-};
-
-struct getdents_callback32 {
-        struct linux_dirent32 __user * current_dir;
-        struct linux_dirent32 __user * previous;
-        int count;
-        int error;
-};
-
-static int filldir(void * __buf, const char * name, int namlen, off_t offset,
-                   ino_t ino, unsigned int d_type)
-{
-        struct linux_dirent32 __user * dirent;
-        struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
-        int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
-
-        buf->error = -EINVAL;   /* only used if we fail.. */
-        if (reclen > buf->count)
-                return -EINVAL;
-        dirent = buf->previous;
-        if (dirent) {
-                if (__put_user(offset, &dirent->d_off))
-                        goto efault;
-        }
-        dirent = buf->current_dir;
-        if (__put_user(ino, &dirent->d_ino))
-                goto efault;
-        if (__put_user(reclen, &dirent->d_reclen))
-                goto efault;
-        if (copy_to_user(dirent->d_name, name, namlen))
-                goto efault;
-        if (__put_user(0, dirent->d_name + namlen))
-                goto efault;
-        if (__put_user(d_type, (char __user *) dirent + reclen - 1))
-                goto efault;
-        buf->previous = dirent;
-        dirent = (void __user *)dirent + reclen;
-        buf->current_dir = dirent;
-        buf->count -= reclen;
-        return 0;
-efault:
-        buf->error = -EFAULT;
-        return -EFAULT;
-}
-
-asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 __user *dirent,
-                    unsigned int count)
-{
-        struct file * file;
-        struct linux_dirent32 __user * lastdirent;
-        struct getdents_callback32 buf;
-        int error;
-
-        error = -EFAULT;
-        if (!access_ok(VERIFY_WRITE, dirent, count))
-                goto out;
-
-        error = -EBADF;
-        file = fget(fd);
-        if (!file)
-                goto out;
-
-        buf.current_dir = dirent;
-        buf.previous = NULL;
-        buf.count = count;
-        buf.error = 0;
-
-        error = vfs_readdir(file, (filldir_t)filldir, &buf);
-        if (error < 0)
-                goto out_putf;
-        error = buf.error;
-        lastdirent = buf.previous;
-        if (lastdirent) {
-                if (put_user(file->f_pos, &lastdirent->d_off))
-                        error = -EFAULT;
-                else
-                        error = count - buf.count;
-        }
-
-out_putf:
-        fput(file);
-out:
-        return error;
-}
-
 asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
                 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
                 compat_uptr_t tvp_x)
@@ -248,7 +157,7 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2)
+asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2)
 {
         return sys_sysfs((int)option, arg1, arg2);
 }
@@ -270,7 +179,7 @@ struct timex32 {
 extern int do_adjtimex(struct timex *);
 extern void ppc_adjtimex(void);
 
-asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
+asmlinkage long compat_sys_adjtimex(struct timex32 __user *utp)
 {
         struct timex txc;
         int ret;
@@ -329,7 +238,7 @@ asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
         return ret;
 }
 
-asmlinkage long sys32_pause(void)
+asmlinkage long compat_sys_pause(void)
 {
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -375,7 +284,7 @@ struct sysinfo32 {
         char _f[20-2*sizeof(int)-sizeof(int)];
 };
 
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
+asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
 {
         struct sysinfo s;
         int ret, err;
@@ -432,7 +341,7 @@ asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
    sorts of things, like timeval and itimerval.  */
 extern struct timezone sys_tz;
 
-asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
 {
         if (tv) {
                 struct timeval ktv;
@@ -450,7 +359,7 @@ asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct time
 
 
 
-asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
 {
         struct timespec kts;
         struct timezone ktz;
@@ -468,7 +377,7 @@ asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct time
 }
 
 #ifdef CONFIG_SYSVIPC
-long sys32_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
+long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
                u32 fifth)
 {
         int version;
@@ -539,7 +448,7 @@ long sys32_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
+asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
 {
         mm_segment_t old_fs = get_fs();
         int ret;
@@ -561,7 +470,7 @@ asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offs
         return ret;
 }
 
-asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
+asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
 {
         mm_segment_t old_fs = get_fs();
         int ret;
@@ -583,7 +492,7 @@ asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *off
         return ret;
 }
 
-long sys32_execve(unsigned long a0, unsigned long a1, unsigned long a2,
+long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
                   unsigned long a3, unsigned long a4, unsigned long a5,
                   struct pt_regs *regs)
 {
@@ -610,58 +519,12 @@ out:
         return error;
 }
 
-/* Set up a thread for executing a new program. */
-void start_thread32(struct pt_regs* regs, unsigned long nip, unsigned long sp)
-{
-        set_fs(USER_DS);
-
-        /*
-         * If we exec out of a kernel thread then thread.regs will not be
-         * set. Do it now.
-         */
-        if (!current->thread.regs) {
-                unsigned long childregs = (unsigned long)current->thread_info +
-                                                THREAD_SIZE;
-                childregs -= sizeof(struct pt_regs);
-                current->thread.regs = (struct pt_regs *)childregs;
-        }
-
-        /*
-         * ELF_PLAT_INIT already clears all registers but it also sets r2.
-         * So just clear r2 here.
-         */
-        regs->gpr[2] = 0;
-
-        regs->nip = nip;
-        regs->gpr[1] = sp;
-        regs->msr = MSR_USER32;
-#ifndef CONFIG_SMP
-        if (last_task_used_math == current)
-                last_task_used_math = 0;
-#endif /* CONFIG_SMP */
-        current->thread.fpscr = 0;
-        memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
-#ifdef CONFIG_ALTIVEC
-#ifndef CONFIG_SMP
-        if (last_task_used_altivec == current)
-                last_task_used_altivec = 0;
-#endif /* CONFIG_SMP */
-        memset(current->thread.vr, 0, sizeof(current->thread.vr));
-        current->thread.vscr.u[0] = 0;
-        current->thread.vscr.u[1] = 0;
-        current->thread.vscr.u[2] = 0;
-        current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */
-        current->thread.vrsave = 0;
-        current->thread.used_vr = 0;
-#endif /* CONFIG_ALTIVEC */
-}
-
 /* Note: it is necessary to treat option as an unsigned int, 
  * with the corresponding cast to a signed int to insure that the 
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
+asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
 {
         return sys_prctl((int)option,
                          (unsigned long) arg2,
@@ -675,7 +538,7 @@ asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
+asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
 {
         struct timespec t;
         int ret;
@@ -690,7 +553,7 @@ asmlinkage long sys32_sched_rr_get_interval(u32 pid, struct compat_timespec __us
         return ret;
 }
 
-asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+asmlinkage int compat_sys_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
 {
         return sys_pciconfig_read((unsigned long) bus,
                                   (unsigned long) dfn,
@@ -699,7 +562,7 @@ asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf
                                   compat_ptr(ubuf));
 }
 
-asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+asmlinkage int compat_sys_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
 {
         return sys_pciconfig_write((unsigned long) bus,
                                    (unsigned long) dfn,
@@ -708,7 +571,7 @@ asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubu
                                    compat_ptr(ubuf));
 }
 
-asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
+asmlinkage int compat_sys_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
 {
         return sys_pciconfig_iobase(which, in_bus, in_devfn);
 }
@@ -719,7 +582,7 @@ asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_access(const char __user * filename, u32 mode)
+asmlinkage long compat_sys_access(const char __user * filename, u32 mode)
 {
         return sys_access(filename, (int)mode);
 }
@@ -730,7 +593,7 @@ asmlinkage long sys32_access(const char __user * filename, u32 mode)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_creat(const char __user * pathname, u32 mode)
+asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode)
 {
         return sys_creat(pathname, (int)mode);
 }
@@ -741,7 +604,7 @@ asmlinkage long sys32_creat(const char __user * pathname, u32 mode)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
+asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
 {
         return sys_waitpid((int)pid, stat_addr, (int)options);
 }
@@ -752,7 +615,7 @@ asmlinkage long sys32_waitpid(u32 pid, unsigned int __user * stat_addr, u32 opti
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t __user *grouplist)
+asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist)
 {
         return sys_getgroups((int)gidsetsize, grouplist);
 }
@@ -763,7 +626,7 @@ asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t __user *grouplist)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_getpgid(u32 pid)
+asmlinkage long compat_sys_getpgid(u32 pid)
 {
         return sys_getpgid((int)pid);
 }
@@ -775,7 +638,7 @@ asmlinkage long sys32_getpgid(u32 pid)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_getsid(u32 pid)
+asmlinkage long compat_sys_getsid(u32 pid)
 {
         return sys_getsid((int)pid);
 }
@@ -786,7 +649,7 @@ asmlinkage long sys32_getsid(u32 pid)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_kill(u32 pid, u32 sig)
+asmlinkage long compat_sys_kill(u32 pid, u32 sig)
 {
         return sys_kill((int)pid, (int)sig);
 }
@@ -797,12 +660,12 @@ asmlinkage long sys32_kill(u32 pid, u32 sig)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_mkdir(const char __user * pathname, u32 mode)
+asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode)
 {
         return sys_mkdir(pathname, (int)mode);
 }
 
-long sys32_nice(u32 increment)
+long compat_sys_nice(u32 increment)
 {
         /* sign extend increment */
         return sys_nice((int)increment);
@@ -819,7 +682,7 @@ off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_readlink(const char __user * path, char __user * buf, u32 bufsiz)
+asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz)
 {
         return sys_readlink(path, buf, (int)bufsiz);
 }
@@ -829,7 +692,7 @@ asmlinkage long sys32_readlink(const char __user * path, char __user * buf, u32
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_get_priority_max(u32 policy)
+asmlinkage long compat_sys_sched_get_priority_max(u32 policy)
 {
         return sys_sched_get_priority_max((int)policy);
 }
@@ -840,7 +703,7 @@ asmlinkage long sys32_sched_get_priority_max(u32 policy)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_get_priority_min(u32 policy)
+asmlinkage long compat_sys_sched_get_priority_min(u32 policy)
 {
         return sys_sched_get_priority_min((int)policy);
 }
@@ -851,7 +714,7 @@ asmlinkage long sys32_sched_get_priority_min(u32 policy)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param __user *param)
+asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param)
 {
         return sys_sched_getparam((int)pid, param);
 }
@@ -862,7 +725,7 @@ asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param __user *param)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_getscheduler(u32 pid)
+asmlinkage long compat_sys_sched_getscheduler(u32 pid)
 {
         return sys_sched_getscheduler((int)pid);
 }
@@ -873,7 +736,7 @@ asmlinkage long sys32_sched_getscheduler(u32 pid)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param __user *param)
+asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param)
 {
         return sys_sched_setparam((int)pid, param);
 }
@@ -884,7 +747,7 @@ asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param __user *param)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
+asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
 {
         return sys_sched_setscheduler((int)pid, (int)policy, param);
 }
@@ -895,7 +758,7 @@ asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_setdomainname(char __user *name, u32 len)
+asmlinkage long compat_sys_setdomainname(char __user *name, u32 len)
 {
         return sys_setdomainname(name, (int)len);
 }
@@ -906,13 +769,13 @@ asmlinkage long sys32_setdomainname(char __user *name, u32 len)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_setgroups(u32 gidsetsize, gid_t __user *grouplist)
+asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist)
 {
         return sys_setgroups((int)gidsetsize, grouplist);
 }
 
 
-asmlinkage long sys32_sethostname(char __user *name, u32 len)
+asmlinkage long compat_sys_sethostname(char __user *name, u32 len)
 {
         /* sign extend len */
         return sys_sethostname(name, (int)len);
@@ -924,30 +787,30 @@ asmlinkage long sys32_sethostname(char __user *name, u32 len)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_setpgid(u32 pid, u32 pgid)
+asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid)
 {
         return sys_setpgid((int)pid, (int)pgid);
 }
 
-long sys32_getpriority(u32 which, u32 who)
+long compat_sys_getpriority(u32 which, u32 who)
 {
         /* sign extend which and who */
         return sys_getpriority((int)which, (int)who);
 }
 
-long sys32_setpriority(u32 which, u32 who, u32 niceval)
+long compat_sys_setpriority(u32 which, u32 who, u32 niceval)
 {
         /* sign extend which, who and niceval */
         return sys_setpriority((int)which, (int)who, (int)niceval);
 }
 
-long sys32_ioprio_get(u32 which, u32 who)
+long compat_sys_ioprio_get(u32 which, u32 who)
 {
         /* sign extend which and who */
         return sys_ioprio_get((int)which, (int)who);
 }
 
-long sys32_ioprio_set(u32 which, u32 who, u32 ioprio)
+long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio)
 {
         /* sign extend which, who and ioprio */
         return sys_ioprio_set((int)which, (int)who, (int)ioprio);
@@ -958,12 +821,12 @@ long sys32_ioprio_set(u32 which, u32 who, u32 ioprio)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_ssetmask(u32 newmask)
+asmlinkage long compat_sys_ssetmask(u32 newmask)
 {
         return sys_ssetmask((int) newmask);
 }
 
-asmlinkage long sys32_syslog(u32 type, char __user * buf, u32 len)
+asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len)
 {
         /* sign extend len */
         return sys_syslog(type, buf, (int)len);
@@ -975,7 +838,7 @@ asmlinkage long sys32_syslog(u32 type, char __user * buf, u32 len)
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
  * and the register representation of a signed int (msr in 64-bit mode) is performed.
  */
-asmlinkage long sys32_umask(u32 mask)
+asmlinkage long compat_sys_umask(u32 mask)
 {
         return sys_umask((int)mask);
 }
@@ -991,7 +854,7 @@ struct __sysctl_args32 {
         u32 __unused[4];
 };
 
-asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
+asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args)
 {
         struct __sysctl_args32 tmp;
         int error;
@@ -1032,55 +895,7 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
 }
 #endif
 
-asmlinkage int sys32_uname(struct old_utsname __user * name)
-{
-        int err = 0;
-        
-        down_read(&uts_sem);
-        if (copy_to_user(name, &system_utsname, sizeof(*name)))
-                err = -EFAULT;
-        up_read(&uts_sem);
-        if (!err && personality(current->personality) == PER_LINUX32) {
-                /* change "ppc64" to "ppc" */
-                if (__put_user(0, name->machine + 3)
-                    || __put_user(0, name->machine + 4))
-                        err = -EFAULT;
-        }
-        return err;
-}
-
-asmlinkage int sys32_olduname(struct oldold_utsname __user * name)
-{
-        int error;
-
-        if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
-                return -EFAULT;
-  
-        down_read(&uts_sem);
-        error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
-        error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
-        error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
-        error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
-        error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
-        error |= __put_user(0,name->release+__OLD_UTS_LEN);
-        error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
-        error |= __put_user(0,name->version+__OLD_UTS_LEN);
-        error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
-        error |= __put_user(0,name->machine+__OLD_UTS_LEN);
-        if (personality(current->personality) == PER_LINUX32) {
-                /* change "ppc64" to "ppc" */
-                error |= __put_user(0, name->machine + 3);
-                error |= __put_user(0, name->machine + 4);
-        }
-        
-        up_read(&uts_sem);
-
-        error = error ? -EFAULT : 0;
-        
-        return error;
-}
-
-unsigned long sys32_mmap2(unsigned long addr, size_t len,
+unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
                           unsigned long prot, unsigned long flags,
                           unsigned long fd, unsigned long pgoff)
 {
@@ -1088,29 +903,7 @@ unsigned long sys32_mmap2(unsigned long addr, size_t len,
         return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
 }
 
-int get_compat_timeval(struct timeval *tv, struct compat_timeval __user *ctv)
-{
-        return (!access_ok(VERIFY_READ, ctv, sizeof(*ctv)) ||
-                __get_user(tv->tv_sec, &ctv->tv_sec) ||
-                __get_user(tv->tv_usec, &ctv->tv_usec)) ? -EFAULT : 0;
-}
-
-asmlinkage long sys32_utimes(char __user *filename, struct compat_timeval __user *tvs)
-{
-        struct timeval ktvs[2], *ptr;
-
-        ptr = NULL;
-        if (tvs) {
-                if (get_compat_timeval(&ktvs[0], &tvs[0]) ||
-                    get_compat_timeval(&ktvs[1], &tvs[1]))
-                        return -EFAULT;
-                ptr = ktvs;
-        }
-
-        return do_utimes(filename, ptr);
-}
-
-long sys32_tgkill(u32 tgid, u32 pid, int sig)
+long compat_sys_tgkill(u32 tgid, u32 pid, int sig)
 {
         /* sign extend tgid, pid */
         return sys_tgkill((int)tgid, (int)pid, sig);
@@ -1121,30 +914,30 @@ long sys32_tgkill(u32 tgid, u32 pid, int sig)
  * The 32 bit ABI passes long longs in an odd even register pair.
  */
 
-compat_ssize_t sys32_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
+compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
                              u32 reg6, u32 poshi, u32 poslo)
 {
         return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
 }
 
-compat_ssize_t sys32_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
+compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
                               u32 reg6, u32 poshi, u32 poslo)
 {
         return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
 }
 
-compat_ssize_t sys32_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
+compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
 {
         return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
 }
 
-asmlinkage int sys32_truncate64(const char __user * path, u32 reg4,
+asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
                                 unsigned long high, unsigned long low)
 {
         return sys_truncate(path, (high << 32) | low);
 }
 
-asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
+asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
                                  unsigned long low)
 {
         return sys_ftruncate(fd, (high << 32) | low);
@@ -1164,13 +957,6 @@ long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
                              advice);
 }
 
-long ppc32_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
-                        u32 len_high, u32 len_low)
-{
-        return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low,
-                             (u64)len_high << 32 | len_low, advice);
-}
-
 long ppc32_timer_create(clockid_t clock,
                         struct compat_sigevent __user *ev32,
                         timer_t __user *timer_id)
@@ -1203,7 +989,7 @@ long ppc32_timer_create(clockid_t clock,
         return err;
 }
 
-asmlinkage long sys32_add_key(const char __user *_type,
+asmlinkage long compat_sys_add_key(const char __user *_type,
                               const char __user *_description,
                               const void __user *_payload,
                               u32 plen,
@@ -1212,7 +998,7 @@ asmlinkage long sys32_add_key(const char __user *_type,
         return sys_add_key(_type, _description, _payload, plen, ringid);
 }
 
-asmlinkage long sys32_request_key(const char __user *_type,
+asmlinkage long compat_sys_request_key(const char __user *_type,
                                   const char __user *_description,
                                   const char __user *_callout_info,
                                   u32 destringid)
diff --git a/arch/ppc64/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 05f16633bd2c..f72ced11212d 100644
--- a/arch/ppc64/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -1,7 +1,6 @@
 /*
- * linux/arch/ppc64/kernel/sys_ppc.c
+ *  Implementation of various system calls for Linux/PowerPC
  *
- *  PowerPC version 
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
  *
  * Derived from "arch/i386/kernel/sys_i386.c"
@@ -52,9 +51,8 @@ extern unsigned long wall_jiffies;
  *
  * This is really horribly ugly.
  */
-asmlinkage int 
-sys_ipc (uint call, int first, unsigned long second, long third,
-         void __user *ptr, long fifth)
+int sys_ipc(uint call, int first, unsigned long second, long third,
+            void __user *ptr, long fifth)
 {
         int version, ret;
 
@@ -88,7 +86,7 @@ sys_ipc (uint call, int first, unsigned long second, long third,
         }
         case MSGSND:
                 ret = sys_msgsnd(first, (struct msgbuf __user *)ptr,
-                                  (size_t)second, third);
+                                 (size_t)second, third);
                 break;
         case MSGRCV:
                 switch (version) {
@@ -113,41 +111,29 @@ sys_ipc (uint call, int first, unsigned long second, long third,
                 }
                 break;
         case MSGGET:
-                ret = sys_msgget ((key_t)first, (int)second);
+                ret = sys_msgget((key_t)first, (int)second);
                 break;
         case MSGCTL:
                 ret = sys_msgctl(first, (int)second,
                                   (struct msqid_ds __user *)ptr);
                 break;
-        case SHMAT:
-                switch (version) {
-                default: {
-                        ulong raddr;
-                        ret = do_shmat(first, (char __user *) ptr,
-                                        (int)second, &raddr);
-                        if (ret)
-                                break;
-                        ret = put_user (raddr, (ulong __user *) third);
-                        break;
-                }
-                case 1: /* iBCS2 emulator entry point */
-                        ret = -EINVAL;
-                        if (!segment_eq(get_fs(), get_ds()))
-                                break;
-                        ret = do_shmat(first, (char __user *)ptr,
-                                        (int)second, (ulong *)third);
+        case SHMAT: {
+                ulong raddr;
+                ret = do_shmat(first, (char __user *)ptr, (int)second, &raddr);
+                if (ret)
                         break;
-                }
+                ret = put_user(raddr, (ulong __user *) third);
                 break;
-        case SHMDT: 
-                ret = sys_shmdt ((char __user *)ptr);
+        }
+        case SHMDT:
+                ret = sys_shmdt((char __user *)ptr);
                 break;
         case SHMGET:
-                ret = sys_shmget (first, (size_t)second, third);
+                ret = sys_shmget(first, (size_t)second, third);
                 break;
         case SHMCTL:
                 ret = sys_shmctl(first, (int)second,
-                                  (struct shmid_ds __user *)ptr);
+                                 (struct shmid_ds __user *)ptr);
                 break;
         }
 
@@ -158,43 +144,89 @@ sys_ipc (uint call, int first, unsigned long second, long third,
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way unix traditionally does this, though.
  */
-asmlinkage int sys_pipe(int __user *fildes)
+int sys_pipe(int __user *fildes)
 {
         int fd[2];
         int error;
-        
+
         error = do_pipe(fd);
         if (!error) {
                 if (copy_to_user(fildes, fd, 2*sizeof(int)))
                         error = -EFAULT;
         }
-        
         return error;
 }
 
-unsigned long sys_mmap(unsigned long addr, size_t len,
-                       unsigned long prot, unsigned long flags,
-                       unsigned long fd, off_t offset)
+static inline unsigned long do_mmap2(unsigned long addr, size_t len,
+                        unsigned long prot, unsigned long flags,
+                        unsigned long fd, unsigned long off, int shift)
 {
         struct file * file = NULL;
-        unsigned long ret = -EBADF;
+        unsigned long ret = -EINVAL;
 
+        if (shift) {
+                if (off & ((1 << shift) - 1))
+                        goto out;
+                off >>= shift;
+        }
+                
+        ret = -EBADF;
         if (!(flags & MAP_ANONYMOUS)) {
                 if (!(file = fget(fd)))
                         goto out;
         }
 
         flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+
         down_write(&current->mm->mmap_sem);
-        ret = do_mmap(file, addr, len, prot, flags, offset);
+        ret = do_mmap_pgoff(file, addr, len, prot, flags, off);
         up_write(&current->mm->mmap_sem);
         if (file)
                 fput(file);
-
 out:
         return ret;
 }
 
+unsigned long sys_mmap2(unsigned long addr, size_t len,
+                        unsigned long prot, unsigned long flags,
+                        unsigned long fd, unsigned long pgoff)
+{
+        return do_mmap2(addr, len, prot, flags, fd, pgoff, PAGE_SHIFT-12);
+}
+
+unsigned long sys_mmap(unsigned long addr, size_t len,
+                       unsigned long prot, unsigned long flags,
+                       unsigned long fd, off_t offset)
+{
+        return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT);
+}
+
+#ifdef CONFIG_PPC32
+/*
+ * Due to some executables calling the wrong select we sometimes
+ * get wrong args.  This determines how the args are being passed
+ * (a single ptr to them all args passed) then calls
+ * sys_select() with the appropriate args. -- Cort
+ */
+int
+ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp)
+{
+        if ( (unsigned long)n >= 4096 )
+        {
+                unsigned long __user *buffer = (unsigned long __user *)n;
+                if (!access_ok(VERIFY_READ, buffer, 5*sizeof(unsigned long))
+                    || __get_user(n, buffer)
+                    || __get_user(inp, ((fd_set __user * __user *)(buffer+1)))
+                    || __get_user(outp, ((fd_set  __user * __user *)(buffer+2)))
+                    || __get_user(exp, ((fd_set  __user * __user *)(buffer+3)))
+                    || __get_user(tvp, ((struct timeval  __user * __user *)(buffer+4))))
+                        return -EFAULT;
+        }
+        return sys_select(n, inp, outp, exp, tvp);
+}
+#endif
+
+#ifdef CONFIG_PPC64
 long ppc64_personality(unsigned long personality)
 {
         long ret;
@@ -207,8 +239,25 @@ long ppc64_personality(unsigned long personality)
                 ret = PER_LINUX;
         return ret;
 }
+#endif
+
+#ifdef CONFIG_PPC64
+#define OVERRIDE_MACHINE    (personality(current->personality) == PER_LINUX32)
+#else
+#define OVERRIDE_MACHINE    0
+#endif
+
+static inline int override_machine(char *mach)
+{
+        if (OVERRIDE_MACHINE) {
+                /* change ppc64 to ppc */
+                if (__put_user(0, mach+3) || __put_user(0, mach+4))
+                        return -EFAULT;
+        }
+        return 0;
+}
 
-long ppc64_newuname(struct new_utsname __user * name)
+long ppc_newuname(struct new_utsname __user * name)
 {
         int err = 0;
 
@@ -216,16 +265,54 @@ long ppc64_newuname(struct new_utsname __user * name)
         if (copy_to_user(name, &system_utsname, sizeof(*name)))
                 err = -EFAULT;
         up_read(&uts_sem);
-        if (!err && personality(current->personality) == PER_LINUX32) {
-                /* change ppc64 to ppc */
-                if (__put_user(0, name->machine + 3)
-                    || __put_user(0, name->machine + 4))
-                        err = -EFAULT;
-        }
+        if (!err)
+                err = override_machine(name->machine);
         return err;
 }
 
-asmlinkage time_t sys64_time(time_t __user * tloc)
+int sys_uname(struct old_utsname __user *name)
+{
+        int err = 0;
+        
+        down_read(&uts_sem);
+        if (copy_to_user(name, &system_utsname, sizeof(*name)))
+                err = -EFAULT;
+        up_read(&uts_sem);
+        if (!err)
+                err = override_machine(name->machine);
+        return err;
+}
+
+int sys_olduname(struct oldold_utsname __user *name)
+{
+        int error;
+
+        if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
+                return -EFAULT;
+  
+        down_read(&uts_sem);
+        error = __copy_to_user(&name->sysname, &system_utsname.sysname,
+                               __OLD_UTS_LEN);
+        error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
+        error |= __copy_to_user(&name->nodename, &system_utsname.nodename,
+                                __OLD_UTS_LEN);
+        error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
+        error |= __copy_to_user(&name->release, &system_utsname.release,
+                                __OLD_UTS_LEN);
+        error |= __put_user(0, name->release + __OLD_UTS_LEN);
+        error |= __copy_to_user(&name->version, &system_utsname.version,
+                                __OLD_UTS_LEN);
+        error |= __put_user(0, name->version + __OLD_UTS_LEN);
+        error |= __copy_to_user(&name->machine, &system_utsname.machine,
+                                __OLD_UTS_LEN);
+        error |= override_machine(name->machine);
+        up_read(&uts_sem);
+
+        return error? -EFAULT: 0;
+}
+
+#ifdef CONFIG_PPC64
+time_t sys64_time(time_t __user * tloc)
 {
         time_t secs;
         time_t usecs;
@@ -247,6 +334,14 @@ asmlinkage time_t sys64_time(time_t __user * tloc)
 
         return secs;
 }
+#endif
+
+long ppc_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
+                      u32 len_high, u32 len_low)
+{
+        return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low,
+                             (u64)len_high << 32 | len_low, advice);
+}
 
 void do_show_syscall(unsigned long r3, unsigned long r4, unsigned long r5,
                      unsigned long r6, unsigned long r7, unsigned long r8,
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
new file mode 100644
index 000000000000..65eaea91b499
--- /dev/null
+++ b/arch/powerpc/kernel/systbl.S
@@ -0,0 +1,321 @@
+/*
+ * This file contains the table of syscall-handling functions.
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ *
+ * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
+ * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) 
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <asm/ppc_asm.h>
+
+#ifdef CONFIG_PPC64
+#define SYSCALL(func)           .llong  .sys_##func,.sys_##func
+#define COMPAT_SYS(func)        .llong  .sys_##func,.compat_sys_##func
+#define PPC_SYS(func)           .llong  .ppc_##func,.ppc_##func
+#define OLDSYS(func)            .llong  .sys_ni_syscall,.sys_ni_syscall
+#define SYS32ONLY(func)         .llong  .sys_ni_syscall,.compat_sys_##func
+#define SYSX(f, f3264, f32)     .llong  .f,.f3264
+#else
+#define SYSCALL(func)           .long   sys_##func
+#define COMPAT_SYS(func)        .long   sys_##func
+#define PPC_SYS(func)           .long   ppc_##func
+#define OLDSYS(func)            .long   sys_##func
+#define SYS32ONLY(func)         .long   sys_##func
+#define SYSX(f, f3264, f32)     .long   f32
+#endif
+
+#ifdef CONFIG_PPC64
+#define sys_sigpending  sys_ni_syscall
+#define sys_old_getrlimit sys_ni_syscall
+#else
+#define ppc_rtas        sys_ni_syscall
+#endif
+
+_GLOBAL(sys_call_table)
+SYSCALL(restart_syscall)
+SYSCALL(exit)
+PPC_SYS(fork)
+SYSCALL(read)
+SYSCALL(write)
+COMPAT_SYS(open)
+SYSCALL(close)
+COMPAT_SYS(waitpid)
+COMPAT_SYS(creat)
+SYSCALL(link)
+SYSCALL(unlink)
+COMPAT_SYS(execve)
+SYSCALL(chdir)
+SYSX(sys64_time,compat_sys_time,sys_time)
+SYSCALL(mknod)
+SYSCALL(chmod)
+SYSCALL(lchown)
+SYSCALL(ni_syscall)
+OLDSYS(stat)
+SYSX(sys_lseek,ppc32_lseek,sys_lseek)
+SYSCALL(getpid)
+COMPAT_SYS(mount)
+SYSX(sys_ni_syscall,sys_oldumount,sys_oldumount)
+SYSCALL(setuid)
+SYSCALL(getuid)
+COMPAT_SYS(stime)
+COMPAT_SYS(ptrace)
+SYSCALL(alarm)
+OLDSYS(fstat)
+COMPAT_SYS(pause)
+COMPAT_SYS(utime)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+COMPAT_SYS(access)
+COMPAT_SYS(nice)
+SYSCALL(ni_syscall)
+SYSCALL(sync)
+COMPAT_SYS(kill)
+SYSCALL(rename)
+COMPAT_SYS(mkdir)
+SYSCALL(rmdir)
+SYSCALL(dup)
+SYSCALL(pipe)
+COMPAT_SYS(times)
+SYSCALL(ni_syscall)
+SYSCALL(brk)
+SYSCALL(setgid)
+SYSCALL(getgid)
+SYSCALL(signal)
+SYSCALL(geteuid)
+SYSCALL(getegid)
+SYSCALL(acct)
+SYSCALL(umount)
+SYSCALL(ni_syscall)
+COMPAT_SYS(ioctl)
+COMPAT_SYS(fcntl)
+SYSCALL(ni_syscall)
+COMPAT_SYS(setpgid)
+SYSCALL(ni_syscall)
+SYSX(sys_ni_syscall,sys_olduname, sys_olduname)
+COMPAT_SYS(umask)
+SYSCALL(chroot)
+SYSCALL(ustat)
+SYSCALL(dup2)
+SYSCALL(getppid)
+SYSCALL(getpgrp)
+SYSCALL(setsid)
+SYS32ONLY(sigaction)
+SYSCALL(sgetmask)
+COMPAT_SYS(ssetmask)
+SYSCALL(setreuid)
+SYSCALL(setregid)
+SYSX(sys_ni_syscall,ppc32_sigsuspend,ppc_sigsuspend)
+COMPAT_SYS(sigpending)
+COMPAT_SYS(sethostname)
+COMPAT_SYS(setrlimit)
+COMPAT_SYS(old_getrlimit)
+COMPAT_SYS(getrusage)
+COMPAT_SYS(gettimeofday)
+COMPAT_SYS(settimeofday)
+COMPAT_SYS(getgroups)
+COMPAT_SYS(setgroups)
+SYSX(sys_ni_syscall,sys_ni_syscall,ppc_select)
+SYSCALL(symlink)
+OLDSYS(lstat)
+COMPAT_SYS(readlink)
+SYSCALL(uselib)
+SYSCALL(swapon)
+SYSCALL(reboot)
+SYSX(sys_ni_syscall,old32_readdir,old_readdir)
+SYSCALL(mmap)
+SYSCALL(munmap)
+SYSCALL(truncate)
+SYSCALL(ftruncate)
+SYSCALL(fchmod)
+SYSCALL(fchown)
+COMPAT_SYS(getpriority)
+COMPAT_SYS(setpriority)
+SYSCALL(ni_syscall)
+COMPAT_SYS(statfs)
+COMPAT_SYS(fstatfs)
+SYSCALL(ni_syscall)
+COMPAT_SYS(socketcall)
+COMPAT_SYS(syslog)
+COMPAT_SYS(setitimer)
+COMPAT_SYS(getitimer)
+COMPAT_SYS(newstat)
+COMPAT_SYS(newlstat)
+COMPAT_SYS(newfstat)
+SYSX(sys_ni_syscall,sys_uname,sys_uname)
+SYSCALL(ni_syscall)
+SYSCALL(vhangup)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+COMPAT_SYS(wait4)
+SYSCALL(swapoff)
+COMPAT_SYS(sysinfo)
+COMPAT_SYS(ipc)
+SYSCALL(fsync)
+SYSX(sys_ni_syscall,ppc32_sigreturn,sys_sigreturn)
+PPC_SYS(clone)
+COMPAT_SYS(setdomainname)
+PPC_SYS(newuname)
+SYSCALL(ni_syscall)
+COMPAT_SYS(adjtimex)
+SYSCALL(mprotect)
+SYSX(sys_ni_syscall,compat_sys_sigprocmask,sys_sigprocmask)
+SYSCALL(ni_syscall)
+SYSCALL(init_module)
+SYSCALL(delete_module)
+SYSCALL(ni_syscall)
+SYSCALL(quotactl)
+COMPAT_SYS(getpgid)
+SYSCALL(fchdir)
+SYSCALL(bdflush)
+COMPAT_SYS(sysfs)
+SYSX(ppc64_personality,ppc64_personality,sys_personality)
+SYSCALL(ni_syscall)
+SYSCALL(setfsuid)
+SYSCALL(setfsgid)
+SYSCALL(llseek)
+COMPAT_SYS(getdents)
+SYSX(sys_select,ppc32_select,ppc_select)
+SYSCALL(flock)
+SYSCALL(msync)
+COMPAT_SYS(readv)
+COMPAT_SYS(writev)
+COMPAT_SYS(getsid)
+SYSCALL(fdatasync)
+COMPAT_SYS(sysctl)
+SYSCALL(mlock)
+SYSCALL(munlock)
+SYSCALL(mlockall)
+SYSCALL(munlockall)
+COMPAT_SYS(sched_setparam)
+COMPAT_SYS(sched_getparam)
+COMPAT_SYS(sched_setscheduler)
+COMPAT_SYS(sched_getscheduler)
+SYSCALL(sched_yield)
+COMPAT_SYS(sched_get_priority_max)
+COMPAT_SYS(sched_get_priority_min)
+COMPAT_SYS(sched_rr_get_interval)
+COMPAT_SYS(nanosleep)
+SYSCALL(mremap)
+SYSCALL(setresuid)
+SYSCALL(getresuid)
+SYSCALL(ni_syscall)
+SYSCALL(poll)
+COMPAT_SYS(nfsservctl)
+SYSCALL(setresgid)
+SYSCALL(getresgid)
+COMPAT_SYS(prctl)
+SYSX(ppc64_rt_sigreturn,ppc32_rt_sigreturn,sys_rt_sigreturn)
+COMPAT_SYS(rt_sigaction)
+COMPAT_SYS(rt_sigprocmask)
+COMPAT_SYS(rt_sigpending)
+COMPAT_SYS(rt_sigtimedwait)
+COMPAT_SYS(rt_sigqueueinfo)
+SYSX(ppc64_rt_sigsuspend,ppc32_rt_sigsuspend,ppc_rt_sigsuspend)
+COMPAT_SYS(pread64)
+COMPAT_SYS(pwrite64)
+SYSCALL(chown)
+SYSCALL(getcwd)
+SYSCALL(capget)
+SYSCALL(capset)
+COMPAT_SYS(sigaltstack)
+SYSX(sys_sendfile64,compat_sys_sendfile,sys_sendfile)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+PPC_SYS(vfork)
+COMPAT_SYS(getrlimit)
+COMPAT_SYS(readahead)
+SYS32ONLY(mmap2)
+SYS32ONLY(truncate64)
+SYS32ONLY(ftruncate64)
+SYSX(sys_ni_syscall,sys_stat64,sys_stat64)
+SYSX(sys_ni_syscall,sys_lstat64,sys_lstat64)
+SYSX(sys_ni_syscall,sys_fstat64,sys_fstat64)
+COMPAT_SYS(pciconfig_read)
+COMPAT_SYS(pciconfig_write)
+COMPAT_SYS(pciconfig_iobase)
+SYSCALL(ni_syscall)
+SYSCALL(getdents64)
+SYSCALL(pivot_root)
+SYSX(sys_ni_syscall,compat_sys_fcntl64,sys_fcntl64)
+SYSCALL(madvise)
+SYSCALL(mincore)
+SYSCALL(gettid)
+SYSCALL(tkill)
+SYSCALL(setxattr)
+SYSCALL(lsetxattr)
+SYSCALL(fsetxattr)
+SYSCALL(getxattr)
+SYSCALL(lgetxattr)
+SYSCALL(fgetxattr)
+SYSCALL(listxattr)
+SYSCALL(llistxattr)
+SYSCALL(flistxattr)
+SYSCALL(removexattr)
+SYSCALL(lremovexattr)
+SYSCALL(fremovexattr)
+COMPAT_SYS(futex)
+COMPAT_SYS(sched_setaffinity)
+COMPAT_SYS(sched_getaffinity)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+SYS32ONLY(sendfile64)
+COMPAT_SYS(io_setup)
+SYSCALL(io_destroy)
+COMPAT_SYS(io_getevents)
+COMPAT_SYS(io_submit)
+SYSCALL(io_cancel)
+SYSCALL(set_tid_address)
+SYSX(sys_fadvise64,ppc32_fadvise64,sys_fadvise64)
+SYSCALL(exit_group)
+SYSX(sys_lookup_dcookie,ppc32_lookup_dcookie,sys_lookup_dcookie)
+SYSCALL(epoll_create)
+SYSCALL(epoll_ctl)
+SYSCALL(epoll_wait)
+SYSCALL(remap_file_pages)
+SYSX(sys_timer_create,ppc32_timer_create,sys_timer_create)
+COMPAT_SYS(timer_settime)
+COMPAT_SYS(timer_gettime)
+SYSCALL(timer_getoverrun)
+SYSCALL(timer_delete)
+COMPAT_SYS(clock_settime)
+COMPAT_SYS(clock_gettime)
+COMPAT_SYS(clock_getres)
+COMPAT_SYS(clock_nanosleep)
+SYSX(ppc64_swapcontext,ppc32_swapcontext,ppc_swapcontext)
+COMPAT_SYS(tgkill)
+COMPAT_SYS(utimes)
+COMPAT_SYS(statfs64)
+COMPAT_SYS(fstatfs64)
+SYSX(sys_ni_syscall, ppc_fadvise64_64, ppc_fadvise64_64)
+PPC_SYS(rtas)
+OLDSYS(debug_setcontext)
+SYSCALL(ni_syscall)
+SYSCALL(ni_syscall)
+COMPAT_SYS(mbind)
+COMPAT_SYS(get_mempolicy)
+COMPAT_SYS(set_mempolicy)
+COMPAT_SYS(mq_open)
+SYSCALL(mq_unlink)
+COMPAT_SYS(mq_timedsend)
+COMPAT_SYS(mq_timedreceive)
+COMPAT_SYS(mq_notify)
+COMPAT_SYS(mq_getsetattr)
+COMPAT_SYS(kexec_load)
+COMPAT_SYS(add_key)
+COMPAT_SYS(request_key)
+COMPAT_SYS(keyctl)
+COMPAT_SYS(waitid)
+COMPAT_SYS(ioprio_set)
+COMPAT_SYS(ioprio_get)
+SYSCALL(inotify_init)
+SYSCALL(inotify_add_watch)
+SYSCALL(inotify_rm_watch)
diff --git a/arch/ppc64/kernel/time.c b/arch/powerpc/kernel/time.c
index b56c6a324e17..23436b6c1881 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1,5 +1,4 @@
 /*
- * 
  * Common time routines among all ppc machines.
  *
  * Written by Cort Dougan (cort@cs.nmt.edu) to merge
@@ -44,33 +43,32 @@
 #include <linux/interrupt.h>
 #include <linux/timex.h>
 #include <linux/kernel_stat.h>
-#include <linux/mc146818rtc.h>
 #include <linux/time.h>
 #include <linux/init.h>
 #include <linux/profile.h>
 #include <linux/cpu.h>
 #include <linux/security.h>
+#include <linux/percpu.h>
+#include <linux/rtc.h>
 
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/nvram.h>
 #include <asm/cache.h>
 #include <asm/machdep.h>
-#ifdef CONFIG_PPC_ISERIES
-#include <asm/iSeries/ItLpQueue.h>
-#include <asm/iSeries/HvCallXm.h>
-#endif
 #include <asm/uaccess.h>
 #include <asm/time.h>
-#include <asm/ppcdebug.h>
 #include <asm/prom.h>
-#include <asm/sections.h>
+#include <asm/irq.h>
+#include <asm/div64.h>
+#ifdef CONFIG_PPC64
 #include <asm/systemcfg.h>
 #include <asm/firmware.h>
-
-u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
+#endif
+#ifdef CONFIG_PPC_ISERIES
+#include <asm/iSeries/ItLpQueue.h>
+#include <asm/iSeries/HvCallXm.h>
+#endif
 
 /* keep track of when we need to update the rtc */
 time_t last_rtc_update;
@@ -81,27 +79,37 @@ unsigned long iSeries_recal_tb = 0;
 static unsigned long first_settimeofday = 1;
 #endif
 
+/* The decrementer counts down by 128 every 128ns on a 601. */
+#define DECREMENTER_COUNT_601   (1000000000 / HZ)
+
 #define XSEC_PER_SEC (1024*1024)
 
+#ifdef CONFIG_PPC64
+#define SCALE_XSEC(xsec, max)   (((xsec) * max) / XSEC_PER_SEC)
+#else
+/* compute ((xsec << 12) * max) >> 32 */
+#define SCALE_XSEC(xsec, max)   mulhwu((xsec) << 12, max)
+#endif
+
 unsigned long tb_ticks_per_jiffy;
 unsigned long tb_ticks_per_usec = 100; /* sane default */
 EXPORT_SYMBOL(tb_ticks_per_usec);
 unsigned long tb_ticks_per_sec;
-unsigned long tb_to_xs;
-unsigned      tb_to_us;
+u64 tb_to_xs;
+unsigned tb_to_us;
 unsigned long processor_freq;
 DEFINE_SPINLOCK(rtc_lock);
 EXPORT_SYMBOL_GPL(rtc_lock);
 
-unsigned long tb_to_ns_scale;
-unsigned long tb_to_ns_shift;
+u64 tb_to_ns_scale;
+unsigned tb_to_ns_shift;
 
 struct gettimeofday_struct do_gtod;
 
 extern unsigned long wall_jiffies;
-extern int smp_tb_synchronized;
 
 extern struct timezone sys_tz;
+static long timezone_offset;
 
 void ppc_adjtimex(void);
 
@@ -110,6 +118,20 @@ static unsigned adjusting_time = 0;
 unsigned long ppc_proc_freq;
 unsigned long ppc_tb_freq;
 
+#ifdef CONFIG_PPC32     /* XXX for now */
+#define boot_cpuid      0
+#endif
+
+u64 tb_last_jiffy __cacheline_aligned_in_smp;
+unsigned long tb_last_stamp;
+
+/*
+ * Note that on ppc32 this only stores the bottom 32 bits of
+ * the timebase value, but that's enough to tell when a jiffy
+ * has passed.
+ */
+DEFINE_PER_CPU(unsigned long, last_jiffy);
+
 static __inline__ void timer_check_rtc(void)
 {
         /*
@@ -128,31 +150,31 @@ static __inline__ void timer_check_rtc(void)
          * We should have an rtc call that only sets the minutes and
          * seconds like on Intel to avoid problems with non UTC clocks.
          */
-        if (ntp_synced() &&
-             xtime.tv_sec - last_rtc_update >= 659 &&
-             abs((xtime.tv_nsec/1000) - (1000000-1000000/HZ)) < 500000/HZ &&
-             jiffies - wall_jiffies == 1) {
-            struct rtc_time tm;
-            to_tm(xtime.tv_sec+1, &tm);
-            tm.tm_year -= 1900;
-            tm.tm_mon -= 1;
-            if (ppc_md.set_rtc_time(&tm) == 0)
-                last_rtc_update = xtime.tv_sec+1;
-            else
-                /* Try again one minute later */
-                last_rtc_update += 60;
+        if (ppc_md.set_rtc_time && ntp_synced() &&
+            xtime.tv_sec - last_rtc_update >= 659 &&
+            abs((xtime.tv_nsec/1000) - (1000000-1000000/HZ)) < 500000/HZ &&
+            jiffies - wall_jiffies == 1) {
+                struct rtc_time tm;
+                to_tm(xtime.tv_sec + 1 + timezone_offset, &tm);
+                tm.tm_year -= 1900;
+                tm.tm_mon -= 1;
+                if (ppc_md.set_rtc_time(&tm) == 0)
+                        last_rtc_update = xtime.tv_sec + 1;
+                else
+                        /* Try again one minute later */
+                        last_rtc_update += 60;
         }
 }
 
 /*
  * This version of gettimeofday has microsecond resolution.
  */
-static inline void __do_gettimeofday(struct timeval *tv, unsigned long tb_val)
+static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val)
 {
-        unsigned long sec, usec, tb_ticks;
-        unsigned long xsec, tb_xsec;
-        struct gettimeofday_vars * temp_varp;
-        unsigned long temp_tb_to_xs, temp_stamp_xsec;
+        unsigned long sec, usec;
+        u64 tb_ticks, xsec;
+        struct gettimeofday_vars *temp_varp;
+        u64 temp_tb_to_xs, temp_stamp_xsec;
 
         /*
          * These calculations are faster (gets rid of divides)
@@ -164,11 +186,10 @@ static inline void __do_gettimeofday(struct timeval *tv, unsigned long tb_val)
         tb_ticks = tb_val - temp_varp->tb_orig_stamp;
         temp_tb_to_xs = temp_varp->tb_to_xs;
         temp_stamp_xsec = temp_varp->stamp_xsec;
-        tb_xsec = mulhdu( tb_ticks, temp_tb_to_xs );
-        xsec = temp_stamp_xsec + tb_xsec;
+        xsec = temp_stamp_xsec + mulhdu(tb_ticks, temp_tb_to_xs);
         sec = xsec / XSEC_PER_SEC;
-        xsec -= sec * XSEC_PER_SEC;
-        usec = (xsec * USEC_PER_SEC)/XSEC_PER_SEC;
+        usec = (unsigned long)xsec & (XSEC_PER_SEC - 1);
+        usec = SCALE_XSEC(usec, 1000000);
 
         tv->tv_sec = sec;
         tv->tv_usec = usec;
@@ -176,6 +197,26 @@ static inline void __do_gettimeofday(struct timeval *tv, unsigned long tb_val)
 
 void do_gettimeofday(struct timeval *tv)
 {
+        if (__USE_RTC()) {
+                /* do this the old way */
+                unsigned long flags, seq;
+                unsigned int sec, nsec, usec, lost;
+
+                do {
+                        seq = read_seqbegin_irqsave(&xtime_lock, flags);
+                        sec = xtime.tv_sec;
+                        nsec = xtime.tv_nsec + tb_ticks_since(tb_last_stamp);
+                        lost = jiffies - wall_jiffies;
+                } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
+                usec = nsec / 1000 + lost * (1000000 / HZ);
+                while (usec >= 1000000) {
+                        usec -= 1000000;
+                        ++sec;
+                }
+                tv->tv_sec = sec;
+                tv->tv_usec = usec;
+                return;
+        }
         __do_gettimeofday(tv, get_tb());
 }
 
@@ -185,6 +226,8 @@ EXPORT_SYMBOL(do_gettimeofday);
 
 static inline void timer_sync_xtime(unsigned long cur_tb)
 {
+#ifdef CONFIG_PPC64
+        /* why do we do this? */
         struct timeval my_tv;
 
         __do_gettimeofday(&my_tv, cur_tb);
@@ -193,47 +236,76 @@ static inline void timer_sync_xtime(unsigned long cur_tb)
                 xtime.tv_sec = my_tv.tv_sec;
                 xtime.tv_nsec = my_tv.tv_usec * 1000;
         }
+#endif
 }
 
 /*
- * When the timebase - tb_orig_stamp gets too big, we do a manipulation
- * between tb_orig_stamp and stamp_xsec. The goal here is to keep the
- * difference tb - tb_orig_stamp small enough to always fit inside a
- * 32 bits number. This is a requirement of our fast 32 bits userland
- * implementation in the vdso. If we "miss" a call to this function
- * (interrupt latency, CPU locked in a spinlock, ...) and we end up
- * with a too big difference, then the vdso will fallback to calling
- * the syscall
+ * There are two copies of tb_to_xs and stamp_xsec so that no
+ * lock is needed to access and use these values in
+ * do_gettimeofday.  We alternate the copies and as long as a
+ * reasonable time elapses between changes, there will never
+ * be inconsistent values.  ntpd has a minimum of one minute
+ * between updates.
  */
-static __inline__ void timer_recalc_offset(unsigned long cur_tb)
+static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
+                               u64 new_tb_to_xs)
 {
-        struct gettimeofday_vars * temp_varp;
         unsigned temp_idx;
-        unsigned long offset, new_stamp_xsec, new_tb_orig_stamp;
-
-        if (((cur_tb - do_gtod.varp->tb_orig_stamp) & 0x80000000u) == 0)
-                return;
+        struct gettimeofday_vars *temp_varp;
 
         temp_idx = (do_gtod.var_idx == 0);
         temp_varp = &do_gtod.vars[temp_idx];
 
-        new_tb_orig_stamp = cur_tb;
-        offset = new_tb_orig_stamp - do_gtod.varp->tb_orig_stamp;
-        new_stamp_xsec = do_gtod.varp->stamp_xsec + mulhdu(offset, do_gtod.varp->tb_to_xs);
-
-        temp_varp->tb_to_xs = do_gtod.varp->tb_to_xs;
-        temp_varp->tb_orig_stamp = new_tb_orig_stamp;
+        temp_varp->tb_to_xs = new_tb_to_xs;
+        temp_varp->tb_orig_stamp = new_tb_stamp;
         temp_varp->stamp_xsec = new_stamp_xsec;
         smp_mb();
         do_gtod.varp = temp_varp;
         do_gtod.var_idx = temp_idx;
 
+#ifdef CONFIG_PPC64
+        /*
+         * tb_update_count is used to allow the userspace gettimeofday code
+         * to assure itself that it sees a consistent view of the tb_to_xs and
+         * stamp_xsec variables.  It reads the tb_update_count, then reads
+         * tb_to_xs and stamp_xsec and then reads tb_update_count again.  If
+         * the two values of tb_update_count match and are even then the
+         * tb_to_xs and stamp_xsec values are consistent.  If not, then it
+         * loops back and reads them again until this criteria is met.
+         */
         ++(systemcfg->tb_update_count);
         smp_wmb();
-        systemcfg->tb_orig_stamp = new_tb_orig_stamp;
+        systemcfg->tb_orig_stamp = new_tb_stamp;
         systemcfg->stamp_xsec = new_stamp_xsec;
+        systemcfg->tb_to_xs = new_tb_to_xs;
         smp_wmb();
         ++(systemcfg->tb_update_count);
+#endif
+}
+
+/*
+ * When the timebase - tb_orig_stamp gets too big, we do a manipulation
+ * between tb_orig_stamp and stamp_xsec. The goal here is to keep the
+ * difference tb - tb_orig_stamp small enough to always fit inside a
+ * 32 bits number. This is a requirement of our fast 32 bits userland
+ * implementation in the vdso. If we "miss" a call to this function
+ * (interrupt latency, CPU locked in a spinlock, ...) and we end up
+ * with a too big difference, then the vdso will fallback to calling
+ * the syscall
+ */
+static __inline__ void timer_recalc_offset(u64 cur_tb)
+{
+        unsigned long offset;
+        u64 new_stamp_xsec;
+
+        if (__USE_RTC())
+                return;
+        offset = cur_tb - do_gtod.varp->tb_orig_stamp;
+        if ((offset & 0x80000000u) == 0)
+                return;
+        new_stamp_xsec = do_gtod.varp->stamp_xsec
+                + mulhdu(offset, do_gtod.varp->tb_to_xs);
+        update_gtod(cur_tb, new_stamp_xsec, do_gtod.varp->tb_to_xs);
 }
 
 #ifdef CONFIG_SMP
@@ -313,26 +385,37 @@ static void iSeries_tb_recal(void)
  * call will not be needed)
  */
 
-unsigned long tb_last_stamp __cacheline_aligned_in_smp;
-
 /*
  * timer_interrupt - gets called when the decrementer overflows,
  * with interrupts disabled.
  */
-int timer_interrupt(struct pt_regs * regs)
+void timer_interrupt(struct pt_regs * regs)
 {
         int next_dec;
-        unsigned long cur_tb;
-        struct paca_struct *lpaca = get_paca();
-        unsigned long cpu = smp_processor_id();
+        int cpu = smp_processor_id();
+        unsigned long ticks;
+
+#ifdef CONFIG_PPC32
+        if (atomic_read(&ppc_n_lost_interrupts) != 0)
+                do_IRQ(regs);
+#endif
 
         irq_enter();
 
         profile_tick(CPU_PROFILING, regs);
 
-        lpaca->lppaca.int_dword.fields.decr_int = 0;
+#ifdef CONFIG_PPC_ISERIES
+        get_paca()->lppaca.int_dword.fields.decr_int = 0;
+#endif
+
+        while ((ticks = tb_ticks_since(per_cpu(last_jiffy, cpu)))
+               >= tb_ticks_per_jiffy) {
+                /* Update last_jiffy */
+                per_cpu(last_jiffy, cpu) += tb_ticks_per_jiffy;
+                /* Handle RTCL overflow on 601 */
+                if (__USE_RTC() && per_cpu(last_jiffy, cpu) >= 1000000000)
+                        per_cpu(last_jiffy, cpu) -= 1000000000;
 
-        while (lpaca->next_jiffy_update_tb <= (cur_tb = get_tb())) {
                 /*
                  * We cannot disable the decrementer, so in the period
                  * between this cpu's being marked offline in cpu_online_map
@@ -342,27 +425,27 @@ int timer_interrupt(struct pt_regs * regs)
                  */
                 if (!cpu_is_offline(cpu))
                         update_process_times(user_mode(regs));
+
                 /*
                  * No need to check whether cpu is offline here; boot_cpuid
                  * should have been fixed up by now.
                  */
-                if (cpu == boot_cpuid) {
-                        write_seqlock(&xtime_lock);
-                        tb_last_stamp = lpaca->next_jiffy_update_tb;
-                        timer_recalc_offset(lpaca->next_jiffy_update_tb);
-                        do_timer(regs);
-                        timer_sync_xtime(lpaca->next_jiffy_update_tb);
-                        timer_check_rtc();
-                        write_sequnlock(&xtime_lock);
-                        if ( adjusting_time && (time_adjust == 0) )
-                                ppc_adjtimex();
-                }
-                lpaca->next_jiffy_update_tb += tb_ticks_per_jiffy;
+                if (cpu != boot_cpuid)
+                        continue;
+
+                write_seqlock(&xtime_lock);
+                tb_last_jiffy += tb_ticks_per_jiffy;
+                tb_last_stamp = per_cpu(last_jiffy, cpu);
+                timer_recalc_offset(tb_last_jiffy);
+                do_timer(regs);
+                timer_sync_xtime(tb_last_jiffy);
+                timer_check_rtc();
+                write_sequnlock(&xtime_lock);
+                if (adjusting_time && (time_adjust == 0))
+                        ppc_adjtimex();
         }
         
-        next_dec = lpaca->next_jiffy_update_tb - cur_tb;
-        if (next_dec > lpaca->default_decr)
-                next_dec = lpaca->default_decr;
+        next_dec = tb_ticks_per_jiffy - ticks;
         set_dec(next_dec);
 
 #ifdef CONFIG_PPC_ISERIES
@@ -370,17 +453,47 @@ int timer_interrupt(struct pt_regs * regs)
                 process_hvlpevents(regs);
 #endif
 
+#ifdef CONFIG_PPC64
         /* collect purr register values often, for accurate calculations */
         if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
                 struct cpu_usage *cu = &__get_cpu_var(cpu_usage_array);
                 cu->current_tb = mfspr(SPRN_PURR);
         }
+#endif
 
         irq_exit();
+}
+
+void wakeup_decrementer(void)
+{
+        int i;
 
-        return 1;
+        set_dec(tb_ticks_per_jiffy);
+        /*
+         * We don't expect this to be called on a machine with a 601,
+         * so using get_tbl is fine.
+         */
+        tb_last_stamp = tb_last_jiffy = get_tb();
+        for_each_cpu(i)
+                per_cpu(last_jiffy, i) = tb_last_stamp;
 }
 
+#ifdef CONFIG_SMP
+void __init smp_space_timers(unsigned int max_cpus)
+{
+        int i;
+        unsigned long offset = tb_ticks_per_jiffy / max_cpus;
+        unsigned long previous_tb = per_cpu(last_jiffy, boot_cpuid);
+
+        for_each_cpu(i) {
+                if (i != boot_cpuid) {
+                        previous_tb += offset;
+                        per_cpu(last_jiffy, i) = previous_tb;
+                }
+        }
+}
+#endif
+
 /*
  * Scheduler clock - returns current time in nanosec units.
  *
@@ -390,6 +503,8 @@ int timer_interrupt(struct pt_regs * regs)
  */
 unsigned long long sched_clock(void)
 {
+        if (__USE_RTC())
+                return get_rtc();
         return mulhdu(get_tb(), tb_to_ns_scale) << tb_to_ns_shift;
 }
 
@@ -398,31 +513,31 @@ int do_settimeofday(struct timespec *tv)
         time_t wtm_sec, new_sec = tv->tv_sec;
         long wtm_nsec, new_nsec = tv->tv_nsec;
         unsigned long flags;
-        unsigned long delta_xsec;
         long int tb_delta;
-        unsigned long new_xsec;
+        u64 new_xsec, tb_delta_xs;
 
         if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
                 return -EINVAL;
 
         write_seqlock_irqsave(&xtime_lock, flags);
-        /* Updating the RTC is not the job of this code. If the time is
-         * stepped under NTP, the RTC will be update after STA_UNSYNC
-         * is cleared. Tool like clock/hwclock either copy the RTC
+
+        /*
+         * Updating the RTC is not the job of this code. If the time is
+         * stepped under NTP, the RTC will be updated after STA_UNSYNC
+         * is cleared.  Tools like clock/hwclock either copy the RTC
          * to the system time, in which case there is no point in writing
          * to the RTC again, or write to the RTC but then they don't call
          * settimeofday to perform this operation.
          */
 #ifdef CONFIG_PPC_ISERIES
-        if ( first_settimeofday ) {
+        if (first_settimeofday) {
                 iSeries_tb_recal();
                 first_settimeofday = 0;
         }
 #endif
         tb_delta = tb_ticks_since(tb_last_stamp);
         tb_delta += (jiffies - wall_jiffies) * tb_ticks_per_jiffy;
-
-        new_nsec -= tb_delta / tb_ticks_per_usec / 1000;
+        tb_delta_xs = mulhdu(tb_delta, do_gtod.varp->tb_to_xs);
 
         wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - new_sec);
         wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - new_nsec);
@@ -437,28 +552,18 @@ int do_settimeofday(struct timespec *tv)
 
         ntp_clear();
 
-        delta_xsec = mulhdu( (tb_last_stamp-do_gtod.varp->tb_orig_stamp),
-                             do_gtod.varp->tb_to_xs );
-
-        new_xsec = (new_nsec * XSEC_PER_SEC) / NSEC_PER_SEC;
-        new_xsec += new_sec * XSEC_PER_SEC;
-        if ( new_xsec > delta_xsec ) {
-                do_gtod.varp->stamp_xsec = new_xsec - delta_xsec;
-                systemcfg->stamp_xsec = new_xsec - delta_xsec;
-        }
-        else {
-                /* This is only for the case where the user is setting the time
-                 * way back to a time such that the boot time would have been
-                 * before 1970 ... eg. we booted ten days ago, and we are setting
-                 * the time to Jan 5, 1970 */
-                do_gtod.varp->stamp_xsec = new_xsec;
-                do_gtod.varp->tb_orig_stamp = tb_last_stamp;
-                systemcfg->stamp_xsec = new_xsec;
-                systemcfg->tb_orig_stamp = tb_last_stamp;
+        new_xsec = 0;
+        if (new_nsec != 0) {
+                new_xsec = (u64)new_nsec * XSEC_PER_SEC;
+                do_div(new_xsec, NSEC_PER_SEC);
         }
+        new_xsec += (u64)new_sec * XSEC_PER_SEC - tb_delta_xs;
+        update_gtod(tb_last_jiffy, new_xsec, do_gtod.varp->tb_to_xs);
 
+#ifdef CONFIG_PPC64
         systemcfg->tz_minuteswest = sys_tz.tz_minuteswest;
         systemcfg->tz_dsttime = sys_tz.tz_dsttime;
+#endif
 
         write_sequnlock_irqrestore(&xtime_lock, flags);
         clock_was_set();
@@ -467,11 +572,9 @@ int do_settimeofday(struct timespec *tv)
 
 EXPORT_SYMBOL(do_settimeofday);
 
-#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_MAPLE) || defined(CONFIG_PPC_BPA)
 void __init generic_calibrate_decr(void)
 {
         struct device_node *cpu;
-        struct div_result divres;
         unsigned int *fp;
         int node_found;
 
@@ -505,37 +608,74 @@ void __init generic_calibrate_decr(void)
                         ppc_proc_freq = *fp;
                 }
         }
+#ifdef CONFIG_BOOKE
+        /* Set the time base to zero */
+        mtspr(SPRN_TBWL, 0);
+        mtspr(SPRN_TBWU, 0);
+
+        /* Clear any pending timer interrupts */
+        mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
+
+        /* Enable decrementer interrupt */
+        mtspr(SPRN_TCR, TCR_DIE);
+#endif
         if (!node_found)
                 printk(KERN_ERR "WARNING: Estimating processor frequency "
                                 "(not found)\n");
 
         of_node_put(cpu);
+}
 
-        printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
-               ppc_tb_freq/1000000, ppc_tb_freq%1000000);
-        printk(KERN_INFO "time_init: processor frequency   = %lu.%.6lu MHz\n",
-               ppc_proc_freq/1000000, ppc_proc_freq%1000000);
-
-        tb_ticks_per_jiffy = ppc_tb_freq / HZ;
-        tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
-        tb_ticks_per_usec = ppc_tb_freq / 1000000;
-        tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
-        div128_by_32(1024*1024, 0, tb_ticks_per_sec, &divres);
-        tb_to_xs = divres.result_low;
+unsigned long get_boot_time(void)
+{
+        struct rtc_time tm;
 
-        setup_default_decr();
+        if (ppc_md.get_boot_time)
+                return ppc_md.get_boot_time();
+        if (!ppc_md.get_rtc_time)
+                return 0;
+        ppc_md.get_rtc_time(&tm);
+        return mktime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
+                      tm.tm_hour, tm.tm_min, tm.tm_sec);
 }
-#endif
 
+/* This function is only called on the boot processor */
 void __init time_init(void)
 {
-        /* This function is only called on the boot processor */
         unsigned long flags;
-        struct rtc_time tm;
+        unsigned long tm = 0;
         struct div_result res;
-        unsigned long scale, shift;
+        u64 scale;
+        unsigned shift;
+
+        if (ppc_md.time_init != NULL)
+                timezone_offset = ppc_md.time_init();
+
+        if (__USE_RTC()) {
+                /* 601 processor: dec counts down by 128 every 128ns */
+                ppc_tb_freq = 1000000000;
+                tb_last_stamp = get_rtcl();
+                tb_last_jiffy = tb_last_stamp;
+        } else {
+                /* Normal PowerPC with timebase register */
+                ppc_md.calibrate_decr();
+                printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
+                       ppc_tb_freq / 1000000, ppc_tb_freq % 1000000);
+                printk(KERN_INFO "time_init: processor frequency   = %lu.%.6lu MHz\n",
+                       ppc_proc_freq / 1000000, ppc_proc_freq % 1000000);
+                tb_last_stamp = tb_last_jiffy = get_tb();
+        }
+
+        tb_ticks_per_jiffy = ppc_tb_freq / HZ;
+        tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
+        tb_ticks_per_usec = ppc_tb_freq / 1000000;
+        tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
+        div128_by_32(1024*1024, 0, tb_ticks_per_sec, &res);
+        tb_to_xs = res.result_low;
 
-        ppc_md.calibrate_decr();
+#ifdef CONFIG_PPC64
+        get_paca()->default_decr = tb_ticks_per_jiffy;
+#endif
 
         /*
          * Compute scale factor for sched_clock.
@@ -559,29 +699,36 @@ void __init time_init(void)
 #ifdef CONFIG_PPC_ISERIES
         if (!piranha_simulator)
 #endif
-                ppc_md.get_boot_time(&tm);
+                tm = get_boot_time();
 
         write_seqlock_irqsave(&xtime_lock, flags);
-        xtime.tv_sec = mktime(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
-                              tm.tm_hour, tm.tm_min, tm.tm_sec);
-        tb_last_stamp = get_tb();
+        xtime.tv_sec = tm;
+        xtime.tv_nsec = 0;
         do_gtod.varp = &do_gtod.vars[0];
         do_gtod.var_idx = 0;
-        do_gtod.varp->tb_orig_stamp = tb_last_stamp;
-        get_paca()->next_jiffy_update_tb = tb_last_stamp + tb_ticks_per_jiffy;
-        do_gtod.varp->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC;
+        do_gtod.varp->tb_orig_stamp = tb_last_jiffy;
+        __get_cpu_var(last_jiffy) = tb_last_stamp;
+        do_gtod.varp->stamp_xsec = (u64) xtime.tv_sec * XSEC_PER_SEC;
         do_gtod.tb_ticks_per_sec = tb_ticks_per_sec;
         do_gtod.varp->tb_to_xs = tb_to_xs;
         do_gtod.tb_to_us = tb_to_us;
-        systemcfg->tb_orig_stamp = tb_last_stamp;
+#ifdef CONFIG_PPC64
+        systemcfg->tb_orig_stamp = tb_last_jiffy;
         systemcfg->tb_update_count = 0;
         systemcfg->tb_ticks_per_sec = tb_ticks_per_sec;
         systemcfg->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC;
         systemcfg->tb_to_xs = tb_to_xs;
+#endif
 
         time_freq = 0;
 
-        xtime.tv_nsec = 0;
+        /* If platform provided a timezone (pmac), we correct the time */
+        if (timezone_offset) {
+                sys_tz.tz_minuteswest = -timezone_offset / 60;
+                sys_tz.tz_dsttime = 0;
+                xtime.tv_sec -= timezone_offset;
+        }
+
         last_rtc_update = xtime.tv_sec;
         set_normalized_timespec(&wall_to_monotonic,
                                 -xtime.tv_sec, -xtime.tv_nsec);
@@ -604,25 +751,28 @@ void __init time_init(void)
 
 void ppc_adjtimex(void)
 {
-        unsigned long den, new_tb_ticks_per_sec, tb_ticks, old_xsec, new_tb_to_xs, new_xsec, new_stamp_xsec;
+#ifdef CONFIG_PPC64
+        unsigned long den, new_tb_ticks_per_sec, tb_ticks, old_xsec,
+                new_tb_to_xs, new_xsec, new_stamp_xsec;
         unsigned long tb_ticks_per_sec_delta;
         long delta_freq, ltemp;
         struct div_result divres; 
         unsigned long flags;
-        struct gettimeofday_vars * temp_varp;
-        unsigned temp_idx;
         long singleshot_ppm = 0;
 
-        /* Compute parts per million frequency adjustment to accomplish the time adjustment
-           implied by time_offset to be applied over the elapsed time indicated by time_constant.
-           Use SHIFT_USEC to get it into the same units as time_freq. */
+        /*
+         * Compute parts per million frequency adjustment to
+         * accomplish the time adjustment implied by time_offset to be
+         * applied over the elapsed time indicated by time_constant.
+         * Use SHIFT_USEC to get it into the same units as
+         * time_freq.
+         */
         if ( time_offset < 0 ) {
                 ltemp = -time_offset;
                 ltemp <<= SHIFT_USEC - SHIFT_UPDATE;
                 ltemp >>= SHIFT_KG + time_constant;
                 ltemp = -ltemp;
-        }
-        else {
+        } else {
                 ltemp = time_offset;
                 ltemp <<= SHIFT_USEC - SHIFT_UPDATE;
                 ltemp >>= SHIFT_KG + time_constant;
@@ -639,7 +789,10 @@ void ppc_adjtimex(void)
         
                 adjusting_time = 1;
                 
-                /* Compute parts per million frequency adjustment to match time_adjust */
+                /*
+                 * Compute parts per million frequency adjustment
+                 * to match time_adjust
+                 */
                 singleshot_ppm = tickadj * HZ;  
                 /*
                  * The adjustment should be tickadj*HZ to match the code in
@@ -647,7 +800,7 @@ void ppc_adjtimex(void)
                  * large. 3/4 of tickadj*HZ seems about right
                  */
                 singleshot_ppm -= singleshot_ppm / 4;
-                /* Use SHIFT_USEC to get it into the same units as time_freq */ 
+                /* Use SHIFT_USEC to get it into the same units as time_freq */
                 singleshot_ppm <<= SHIFT_USEC;
                 if ( time_adjust < 0 )
                         singleshot_ppm = -singleshot_ppm;
@@ -663,7 +816,10 @@ void ppc_adjtimex(void)
         /* Add up all of the frequency adjustments */
         delta_freq = time_freq + ltemp + singleshot_ppm;
         
-        /* Compute a new value for tb_ticks_per_sec based on the frequency adjustment */
+        /*
+         * Compute a new value for tb_ticks_per_sec based on
+         * the frequency adjustment
+         */
         den = 1000000 * (1 << (SHIFT_USEC - 8));
         if ( delta_freq < 0 ) {
                 tb_ticks_per_sec_delta = ( tb_ticks_per_sec * ( (-delta_freq) >> (SHIFT_USEC - 8))) / den;
@@ -678,61 +834,37 @@ void ppc_adjtimex(void)
         printk("ppc_adjtimex: ltemp = %ld, time_freq = %ld, singleshot_ppm = %ld\n", ltemp, time_freq, singleshot_ppm);
         printk("ppc_adjtimex: tb_ticks_per_sec - base = %ld  new = %ld\n", tb_ticks_per_sec, new_tb_ticks_per_sec);
 #endif
-                                
-        /* Compute a new value of tb_to_xs (used to convert tb to microseconds and a new value of 
-           stamp_xsec which is the time (in 1/2^20 second units) corresponding to tb_orig_stamp.  This 
-           new value of stamp_xsec compensates for the change in frequency (implied by the new tb_to_xs)
-           which guarantees that the current time remains the same */ 
+
+        /*
+         * Compute a new value of tb_to_xs (used to convert tb to
+         * microseconds) and a new value of stamp_xsec which is the
+         * time (in 1/2^20 second units) corresponding to
+         * tb_orig_stamp.  This new value of stamp_xsec compensates
+         * for the change in frequency (implied by the new tb_to_xs)
+         * which guarantees that the current time remains the same.
+         */
         write_seqlock_irqsave( &xtime_lock, flags );
         tb_ticks = get_tb() - do_gtod.varp->tb_orig_stamp;
-        div128_by_32( 1024*1024, 0, new_tb_ticks_per_sec, &divres );
+        div128_by_32(1024*1024, 0, new_tb_ticks_per_sec, &divres);
         new_tb_to_xs = divres.result_low;
-        new_xsec = mulhdu( tb_ticks, new_tb_to_xs );
+        new_xsec = mulhdu(tb_ticks, new_tb_to_xs);
 
-        old_xsec = mulhdu( tb_ticks, do_gtod.varp->tb_to_xs );
+        old_xsec = mulhdu(tb_ticks, do_gtod.varp->tb_to_xs);
         new_stamp_xsec = do_gtod.varp->stamp_xsec + old_xsec - new_xsec;
 
-        /* There are two copies of tb_to_xs and stamp_xsec so that no lock is needed to access and use these
-           values in do_gettimeofday.  We alternate the copies and as long as a reasonable time elapses between
-           changes, there will never be inconsistent values.  ntpd has a minimum of one minute between updates */
-
-        temp_idx = (do_gtod.var_idx == 0);
-        temp_varp = &do_gtod.vars[temp_idx];
-
-        temp_varp->tb_to_xs = new_tb_to_xs;
-        temp_varp->stamp_xsec = new_stamp_xsec;
-        temp_varp->tb_orig_stamp = do_gtod.varp->tb_orig_stamp;
-        smp_mb();
-        do_gtod.varp = temp_varp;
-        do_gtod.var_idx = temp_idx;
-
-        /*
-         * tb_update_count is used to allow the problem state gettimeofday code
-         * to assure itself that it sees a consistent view of the tb_to_xs and
-         * stamp_xsec variables.  It reads the tb_update_count, then reads
-         * tb_to_xs and stamp_xsec and then reads tb_update_count again.  If
-         * the two values of tb_update_count match and are even then the
-         * tb_to_xs and stamp_xsec values are consistent.  If not, then it
-         * loops back and reads them again until this criteria is met.
-         */
-        ++(systemcfg->tb_update_count);
-        smp_wmb();
-        systemcfg->tb_to_xs = new_tb_to_xs;
-        systemcfg->stamp_xsec = new_stamp_xsec;
-        smp_wmb();
-        ++(systemcfg->tb_update_count);
+        update_gtod(do_gtod.varp->tb_orig_stamp, new_stamp_xsec, new_tb_to_xs);
 
         write_sequnlock_irqrestore( &xtime_lock, flags );
-
+#endif /* CONFIG_PPC64 */
 }
 
 
-#define TICK_SIZE tick
 #define FEBRUARY        2
 #define STARTOFTIME     1970
 #define SECDAY          86400L
 #define SECYR           (SECDAY * 365)
-#define leapyear(year)          ((year) % 4 == 0)
+#define leapyear(year)          ((year) % 4 == 0 && \
+                                 ((year) % 100 != 0 || (year) % 400 == 0))
 #define days_in_year(a)         (leapyear(a) ? 366 : 365)
 #define days_in_month(a)        (month_days[(a) - 1])
 
@@ -750,37 +882,25 @@ void GregorianDay(struct rtc_time * tm)
         int day;
         int MonthOffset[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };
 
-        lastYear=tm->tm_year-1;
+        lastYear = tm->tm_year - 1;
 
         /*
          * Number of leap corrections to apply up to end of last year
          */
-        leapsToDate = lastYear/4 - lastYear/100 + lastYear/400;
+        leapsToDate = lastYear / 4 - lastYear / 100 + lastYear / 400;
 
         /*
          * This year is a leap year if it is divisible by 4 except when it is
          * divisible by 100 unless it is divisible by 400
          *
-         * e.g. 1904 was a leap year, 1900 was not, 1996 is, and 2000 will be
+         * e.g. 1904 was a leap year, 1900 was not, 1996 is, and 2000 was
          */
-        if((tm->tm_year%4==0) &&
-           ((tm->tm_year%100!=0) || (tm->tm_year%400==0)) &&
-           (tm->tm_mon>2))
-        {
-                /*
-                 * We are past Feb. 29 in a leap year
-                 */
-                day=1;
-        }
-        else
-        {
-                day=0;
-        }
+        day = tm->tm_mon > 2 && leapyear(tm->tm_year);
 
         day += lastYear*365 + leapsToDate + MonthOffset[tm->tm_mon-1] +
                    tm->tm_mday;
 
-        tm->tm_wday=day%7;
+        tm->tm_wday = day % 7;
 }
 
 void to_tm(int tim, struct rtc_time * tm)
@@ -826,14 +946,16 @@ void to_tm(int tim, struct rtc_time * tm)
  * oscillators and the precision with which the timebase frequency
  * is measured but does not harm.
  */
-unsigned mulhwu_scale_factor(unsigned inscale, unsigned outscale) {
+unsigned mulhwu_scale_factor(unsigned inscale, unsigned outscale)
+{
         unsigned mlt=0, tmp, err;
         /* No concern for performance, it's done once: use a stupid
          * but safe and compact method to find the multiplier.
          */
   
         for (tmp = 1U<<31; tmp != 0; tmp >>= 1) {
-                if (mulhwu(inscale, mlt|tmp) < outscale) mlt|=tmp;
+                if (mulhwu(inscale, mlt|tmp) < outscale)
+                        mlt |= tmp;
         }
   
         /* We might still be off by 1 for the best approximation.
@@ -843,39 +965,41 @@ unsigned mulhwu_scale_factor(unsigned inscale, unsigned outscale) {
          * some might have been forgotten in the test however.
          */
   
-        err = inscale*(mlt+1);
-        if (err <= inscale/2) mlt++;
+        err = inscale * (mlt+1);
+        if (err <= inscale/2)
+                mlt++;
         return mlt;
-  }
+}
 
 /*
  * Divide a 128-bit dividend by a 32-bit divisor, leaving a 128 bit
  * result.
  */
-
-void div128_by_32( unsigned long dividend_high, unsigned long dividend_low,
-                   unsigned divisor, struct div_result *dr )
+void div128_by_32(u64 dividend_high, u64 dividend_low,
+                  unsigned divisor, struct div_result *dr)
 {
-        unsigned long a,b,c,d, w,x,y,z, ra,rb,rc;
+        unsigned long a, b, c, d;
+        unsigned long w, x, y, z;
+        u64 ra, rb, rc;
 
         a = dividend_high >> 32;
         b = dividend_high & 0xffffffff;
         c = dividend_low >> 32;
         d = dividend_low & 0xffffffff;
 
-        w = a/divisor;
-        ra = (a - (w * divisor)) << 32;
+        w = a / divisor;
+        ra = ((u64)(a - (w * divisor)) << 32) + b;
 
-        x = (ra + b)/divisor;
-        rb = ((ra + b) - (x * divisor)) << 32;
+        rb = ((u64) do_div(ra, divisor) << 32) + c;
+        x = ra;
 
-        y = (rb + c)/divisor;
-        rc = ((rb + c) - (y * divisor)) << 32;
+        rc = ((u64) do_div(rb, divisor) << 32) + d;
+        y = rb;
 
-        z = (rc + d)/divisor;
+        do_div(rc, divisor);
+        z = rc;
 
-        dr->result_high = (w << 32) + x;
-        dr->result_low  = (y << 32) + z;
+        dr->result_high = ((u64)w << 32) + x;
+        dr->result_low  = ((u64)y << 32) + z;
 
 }
-
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
new file mode 100644
index 000000000000..5d638ecddbd0
--- /dev/null
+++ b/arch/powerpc/kernel/traps.c
@@ -0,0 +1,1101 @@
+/*
+ *  Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ *  Modified by Cort Dougan (cort@cs.nmt.edu)
+ *  and Paul Mackerras (paulus@samba.org)
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/prctl.h>
+#include <linux/delay.h>
+#include <linux/kprobes.h>
+
+#include <asm/kdebug.h>
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/rtas.h>
+#include <asm/xmon.h>
+#include <asm/pmc.h>
+#ifdef CONFIG_PPC32
+#include <asm/reg.h>
+#endif
+#ifdef CONFIG_PMAC_BACKLIGHT
+#include <asm/backlight.h>
+#endif
+#ifdef CONFIG_PPC64
+#include <asm/firmware.h>
+#include <asm/processor.h>
+#include <asm/systemcfg.h>
+#endif
+
+#ifdef CONFIG_PPC64     /* XXX */
+#define _IO_BASE        pci_io_base
+#endif
+
+#ifdef CONFIG_DEBUGGER
+int (*__debugger)(struct pt_regs *regs);
+int (*__debugger_ipi)(struct pt_regs *regs);
+int (*__debugger_bpt)(struct pt_regs *regs);
+int (*__debugger_sstep)(struct pt_regs *regs);
+int (*__debugger_iabr_match)(struct pt_regs *regs);
+int (*__debugger_dabr_match)(struct pt_regs *regs);
+int (*__debugger_fault_handler)(struct pt_regs *regs);
+
+EXPORT_SYMBOL(__debugger);
+EXPORT_SYMBOL(__debugger_ipi);
+EXPORT_SYMBOL(__debugger_bpt);
+EXPORT_SYMBOL(__debugger_sstep);
+EXPORT_SYMBOL(__debugger_iabr_match);
+EXPORT_SYMBOL(__debugger_dabr_match);
+EXPORT_SYMBOL(__debugger_fault_handler);
+#endif
+
+struct notifier_block *powerpc_die_chain;
+static DEFINE_SPINLOCK(die_notifier_lock);
+
+int register_die_notifier(struct notifier_block *nb)
+{
+        int err = 0;
+        unsigned long flags;
+
+        spin_lock_irqsave(&die_notifier_lock, flags);
+        err = notifier_chain_register(&powerpc_die_chain, nb);
+        spin_unlock_irqrestore(&die_notifier_lock, flags);
+        return err;
+}
+
+/*
+ * Trap & Exception support
+ */
+
+static DEFINE_SPINLOCK(die_lock);
+
+int die(const char *str, struct pt_regs *regs, long err)
+{
+        static int die_counter;
+        int nl = 0;
+
+        if (debugger(regs))
+                return 1;
+
+        console_verbose();
+        spin_lock_irq(&die_lock);
+        bust_spinlocks(1);
+#ifdef CONFIG_PMAC_BACKLIGHT
+        if (_machine == _MACH_Pmac) {
+                set_backlight_enable(1);
+                set_backlight_level(BACKLIGHT_MAX);
+        }
+#endif
+        printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
+#ifdef CONFIG_PREEMPT
+        printk("PREEMPT ");
+        nl = 1;
+#endif
+#ifdef CONFIG_SMP
+        printk("SMP NR_CPUS=%d ", NR_CPUS);
+        nl = 1;
+#endif
+#ifdef CONFIG_DEBUG_PAGEALLOC
+        printk("DEBUG_PAGEALLOC ");
+        nl = 1;
+#endif
+#ifdef CONFIG_NUMA
+        printk("NUMA ");
+        nl = 1;
+#endif
+#ifdef CONFIG_PPC64
+        switch (systemcfg->platform) {
+        case PLATFORM_PSERIES:
+                printk("PSERIES ");
+                nl = 1;
+                break;
+        case PLATFORM_PSERIES_LPAR:
+                printk("PSERIES LPAR ");
+                nl = 1;
+                break;
+        case PLATFORM_ISERIES_LPAR:
+                printk("ISERIES LPAR ");
+                nl = 1;
+                break;
+        case PLATFORM_POWERMAC:
+                printk("POWERMAC ");
+                nl = 1;
+                break;
+        case PLATFORM_BPA:
+                printk("BPA ");
+                nl = 1;
+                break;
+        }
+#endif
+        if (nl)
+                printk("\n");
+        print_modules();
+        show_regs(regs);
+        bust_spinlocks(0);
+        spin_unlock_irq(&die_lock);
+
+        if (in_interrupt())
+                panic("Fatal exception in interrupt");
+
+        if (panic_on_oops) {
+#ifdef CONFIG_PPC64
+                printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
+                ssleep(5);
+#endif
+                panic("Fatal exception");
+        }
+        do_exit(err);
+
+        return 0;
+}
+
+void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
+{
+        siginfo_t info;
+
+        if (!user_mode(regs)) {
+                if (die("Exception in kernel mode", regs, signr))
+                        return;
+        }
+
+        memset(&info, 0, sizeof(info));
+        info.si_signo = signr;
+        info.si_code = code;
+        info.si_addr = (void __user *) addr;
+        force_sig_info(signr, &info, current);
+
+        /*
+         * Init gets no signals that it doesn't have a handler for.
+         * That's all very well, but if it has caused a synchronous
+         * exception and we ignore the resulting signal, it will just
+         * generate the same exception over and over again and we get
+         * nowhere.  Better to kill it and let the kernel panic.
+         */
+        if (current->pid == 1) {
+                __sighandler_t handler;
+
+                spin_lock_irq(&current->sighand->siglock);
+                handler = current->sighand->action[signr-1].sa.sa_handler;
+                spin_unlock_irq(&current->sighand->siglock);
+                if (handler == SIG_DFL) {
+                        /* init has generated a synchronous exception
+                           and it doesn't have a handler for the signal */
+                        printk(KERN_CRIT "init has generated signal %d "
+                               "but has no handler for it\n", signr);
+                        do_exit(signr);
+                }
+        }
+}
+
+#ifdef CONFIG_PPC64
+void system_reset_exception(struct pt_regs *regs)
+{
+        /* See if any machine dependent calls */
+        if (ppc_md.system_reset_exception)
+                ppc_md.system_reset_exception(regs);
+
+        die("System Reset", regs, SIGABRT);
+
+        /* Must die if the interrupt is not recoverable */
+        if (!(regs->msr & MSR_RI))
+                panic("Unrecoverable System Reset");
+
+        /* What should we do here? We could issue a shutdown or hard reset. */
+}
+#endif
+
+/*
+ * I/O accesses can cause machine checks on powermacs.
+ * Check if the NIP corresponds to the address of a sync
+ * instruction for which there is an entry in the exception
+ * table.
+ * Note that the 601 only takes a machine check on TEA
+ * (transfer error ack) signal assertion, and does not
+ * set any of the top 16 bits of SRR1.
+ *  -- paulus.
+ */
+static inline int check_io_access(struct pt_regs *regs)
+{
+#ifdef CONFIG_PPC_PMAC
+        unsigned long msr = regs->msr;
+        const struct exception_table_entry *entry;
+        unsigned int *nip = (unsigned int *)regs->nip;
+
+        if (((msr & 0xffff0000) == 0 || (msr & (0x80000 | 0x40000)))
+            && (entry = search_exception_tables(regs->nip)) != NULL) {
+                /*
+                 * Check that it's a sync instruction, or somewhere
+                 * in the twi; isync; nop sequence that inb/inw/inl uses.
+                 * As the address is in the exception table
+                 * we should be able to read the instr there.
+                 * For the debug message, we look at the preceding
+                 * load or store.
+                 */
+                if (*nip == 0x60000000)         /* nop */
+                        nip -= 2;
+                else if (*nip == 0x4c00012c)    /* isync */
+                        --nip;
+                if (*nip == 0x7c0004ac || (*nip >> 26) == 3) {
+                        /* sync or twi */
+                        unsigned int rb;
+
+                        --nip;
+                        rb = (*nip >> 11) & 0x1f;
+                        printk(KERN_DEBUG "%s bad port %lx at %p\n",
+                               (*nip & 0x100)? "OUT to": "IN from",
+                               regs->gpr[rb] - _IO_BASE, nip);
+                        regs->msr |= MSR_RI;
+                        regs->nip = entry->fixup;
+                        return 1;
+                }
+        }
+#endif /* CONFIG_PPC_PMAC */
+        return 0;
+}
+
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+/* On 4xx, the reason for the machine check or program exception
+   is in the ESR. */
+#define get_reason(regs)        ((regs)->dsisr)
+#ifndef CONFIG_FSL_BOOKE
+#define get_mc_reason(regs)     ((regs)->dsisr)
+#else
+#define get_mc_reason(regs)     (mfspr(SPRN_MCSR))
+#endif
+#define REASON_FP               ESR_FP
+#define REASON_ILLEGAL          (ESR_PIL | ESR_PUO)
+#define REASON_PRIVILEGED       ESR_PPR
+#define REASON_TRAP             ESR_PTR
+
+/* single-step stuff */
+#define single_stepping(regs)   (current->thread.dbcr0 & DBCR0_IC)
+#define clear_single_step(regs) (current->thread.dbcr0 &= ~DBCR0_IC)
+
+#else
+/* On non-4xx, the reason for the machine check or program
+   exception is in the MSR. */
+#define get_reason(regs)        ((regs)->msr)
+#define get_mc_reason(regs)     ((regs)->msr)
+#define REASON_FP               0x100000
+#define REASON_ILLEGAL          0x80000
+#define REASON_PRIVILEGED       0x40000
+#define REASON_TRAP             0x20000
+
+#define single_stepping(regs)   ((regs)->msr & MSR_SE)
+#define clear_single_step(regs) ((regs)->msr &= ~MSR_SE)
+#endif
+
+/*
+ * This is "fall-back" implementation for configurations
+ * which don't provide platform-specific machine check info
+ */
+void __attribute__ ((weak))
+platform_machine_check(struct pt_regs *regs)
+{
+}
+
+void machine_check_exception(struct pt_regs *regs)
+{
+#ifdef CONFIG_PPC64
+        int recover = 0;
+
+        /* See if any machine dependent calls */
+        if (ppc_md.machine_check_exception)
+                recover = ppc_md.machine_check_exception(regs);
+
+        if (recover)
+                return;
+#else
+        unsigned long reason = get_mc_reason(regs);
+
+        if (user_mode(regs)) {
+                regs->msr |= MSR_RI;
+                _exception(SIGBUS, regs, BUS_ADRERR, regs->nip);
+                return;
+        }
+
+#if defined(CONFIG_8xx) && defined(CONFIG_PCI)
+        /* the qspan pci read routines can cause machine checks -- Cort */
+        bad_page_fault(regs, regs->dar, SIGBUS);
+        return;
+#endif
+
+        if (debugger_fault_handler(regs)) {
+                regs->msr |= MSR_RI;
+                return;
+        }
+
+        if (check_io_access(regs))
+                return;
+
+#if defined(CONFIG_4xx) && !defined(CONFIG_440A)
+        if (reason & ESR_IMCP) {
+                printk("Instruction");
+                mtspr(SPRN_ESR, reason & ~ESR_IMCP);
+        } else
+                printk("Data");
+        printk(" machine check in kernel mode.\n");
+#elif defined(CONFIG_440A)
+        printk("Machine check in kernel mode.\n");
+        if (reason & ESR_IMCP){
+                printk("Instruction Synchronous Machine Check exception\n");
+                mtspr(SPRN_ESR, reason & ~ESR_IMCP);
+        }
+        else {
+                u32 mcsr = mfspr(SPRN_MCSR);
+                if (mcsr & MCSR_IB)
+                        printk("Instruction Read PLB Error\n");
+                if (mcsr & MCSR_DRB)
+                        printk("Data Read PLB Error\n");
+                if (mcsr & MCSR_DWB)
+                        printk("Data Write PLB Error\n");
+                if (mcsr & MCSR_TLBP)
+                        printk("TLB Parity Error\n");
+                if (mcsr & MCSR_ICP){
+                        flush_instruction_cache();
+                        printk("I-Cache Parity Error\n");
+                }
+                if (mcsr & MCSR_DCSP)
+                        printk("D-Cache Search Parity Error\n");
+                if (mcsr & MCSR_DCFP)
+                        printk("D-Cache Flush Parity Error\n");
+                if (mcsr & MCSR_IMPE)
+                        printk("Machine Check exception is imprecise\n");
+
+                /* Clear MCSR */
+                mtspr(SPRN_MCSR, mcsr);
+        }
+#elif defined (CONFIG_E500)
+        printk("Machine check in kernel mode.\n");
+        printk("Caused by (from MCSR=%lx): ", reason);
+
+        if (reason & MCSR_MCP)
+                printk("Machine Check Signal\n");
+        if (reason & MCSR_ICPERR)
+                printk("Instruction Cache Parity Error\n");
+        if (reason & MCSR_DCP_PERR)
+                printk("Data Cache Push Parity Error\n");
+        if (reason & MCSR_DCPERR)
+                printk("Data Cache Parity Error\n");
+        if (reason & MCSR_GL_CI)
+                printk("Guarded Load or Cache-Inhibited stwcx.\n");
+        if (reason & MCSR_BUS_IAERR)
+                printk("Bus - Instruction Address Error\n");
+        if (reason & MCSR_BUS_RAERR)
+                printk("Bus - Read Address Error\n");
+        if (reason & MCSR_BUS_WAERR)
+                printk("Bus - Write Address Error\n");
+        if (reason & MCSR_BUS_IBERR)
+                printk("Bus - Instruction Data Error\n");
+        if (reason & MCSR_BUS_RBERR)
+                printk("Bus - Read Data Bus Error\n");
+        if (reason & MCSR_BUS_WBERR)
+                printk("Bus - Read Data Bus Error\n");
+        if (reason & MCSR_BUS_IPERR)
+                printk("Bus - Instruction Parity Error\n");
+        if (reason & MCSR_BUS_RPERR)
+                printk("Bus - Read Parity Error\n");
+#elif defined (CONFIG_E200)
+        printk("Machine check in kernel mode.\n");
+        printk("Caused by (from MCSR=%lx): ", reason);
+
+        if (reason & MCSR_MCP)
+                printk("Machine Check Signal\n");
+        if (reason & MCSR_CP_PERR)
+                printk("Cache Push Parity Error\n");
+        if (reason & MCSR_CPERR)
+                printk("Cache Parity Error\n");
+        if (reason & MCSR_EXCP_ERR)
+                printk("ISI, ITLB, or Bus Error on first instruction fetch for an exception handler\n");
+        if (reason & MCSR_BUS_IRERR)
+                printk("Bus - Read Bus Error on instruction fetch\n");
+        if (reason & MCSR_BUS_DRERR)
+                printk("Bus - Read Bus Error on data load\n");
+        if (reason & MCSR_BUS_WRERR)
+                printk("Bus - Write Bus Error on buffered store or cache line push\n");
+#else /* !CONFIG_4xx && !CONFIG_E500 && !CONFIG_E200 */
+        printk("Machine check in kernel mode.\n");
+        printk("Caused by (from SRR1=%lx): ", reason);
+        switch (reason & 0x601F0000) {
+        case 0x80000:
+                printk("Machine check signal\n");
+                break;
+        case 0:         /* for 601 */
+        case 0x40000:
+        case 0x140000:  /* 7450 MSS error and TEA */
+                printk("Transfer error ack signal\n");
+                break;
+        case 0x20000:
+                printk("Data parity error signal\n");
+                break;
+        case 0x10000:
+                printk("Address parity error signal\n");
+                break;
+        case 0x20000000:
+                printk("L1 Data Cache error\n");
+                break;
+        case 0x40000000:
+                printk("L1 Instruction Cache error\n");
+                break;
+        case 0x00100000:
+                printk("L2 data cache parity error\n");
+                break;
+        default:
+                printk("Unknown values in msr\n");
+        }
+#endif /* CONFIG_4xx */
+
+        /*
+         * Optional platform-provided routine to print out
+         * additional info, e.g. bus error registers.
+         */
+        platform_machine_check(regs);
+#endif /* CONFIG_PPC64 */
+
+        if (debugger_fault_handler(regs))
+                return;
+        die("Machine check", regs, SIGBUS);
+
+        /* Must die if the interrupt is not recoverable */
+        if (!(regs->msr & MSR_RI))
+                panic("Unrecoverable Machine check");
+}
+
+void SMIException(struct pt_regs *regs)
+{
+        die("System Management Interrupt", regs, SIGABRT);
+}
+
+void unknown_exception(struct pt_regs *regs)
+{
+        printk("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+               regs->nip, regs->msr, regs->trap);
+
+        _exception(SIGTRAP, regs, 0, 0);
+}
+
+void instruction_breakpoint_exception(struct pt_regs *regs)
+{
+        if (notify_die(DIE_IABR_MATCH, "iabr_match", regs, 5,
+                                        5, SIGTRAP) == NOTIFY_STOP)
+                return;
+        if (debugger_iabr_match(regs))
+                return;
+        _exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
+}
+
+void RunModeException(struct pt_regs *regs)
+{
+        _exception(SIGTRAP, regs, 0, 0);
+}
+
+void __kprobes single_step_exception(struct pt_regs *regs)
+{
+        regs->msr &= ~(MSR_SE | MSR_BE);  /* Turn off 'trace' bits */
+
+        if (notify_die(DIE_SSTEP, "single_step", regs, 5,
+                                        5, SIGTRAP) == NOTIFY_STOP)
+                return;
+        if (debugger_sstep(regs))
+                return;
+
+        _exception(SIGTRAP, regs, TRAP_TRACE, regs->nip);
+}
+
+/*
+ * After we have successfully emulated an instruction, we have to
+ * check if the instruction was being single-stepped, and if so,
+ * pretend we got a single-step exception.  This was pointed out
+ * by Kumar Gala.  -- paulus
+ */
+static void emulate_single_step(struct pt_regs *regs)
+{
+        if (single_stepping(regs)) {
+                clear_single_step(regs);
+                _exception(SIGTRAP, regs, TRAP_TRACE, 0);
+        }
+}
+
+static void parse_fpe(struct pt_regs *regs)
+{
+        int code = 0;
+        unsigned long fpscr;
+
+        flush_fp_to_thread(current);
+
+        fpscr = current->thread.fpscr.val;
+
+        /* Invalid operation */
+        if ((fpscr & FPSCR_VE) && (fpscr & FPSCR_VX))
+                code = FPE_FLTINV;
+
+        /* Overflow */
+        else if ((fpscr & FPSCR_OE) && (fpscr & FPSCR_OX))
+                code = FPE_FLTOVF;
+
+        /* Underflow */
+        else if ((fpscr & FPSCR_UE) && (fpscr & FPSCR_UX))
+                code = FPE_FLTUND;
+
+        /* Divide by zero */
+        else if ((fpscr & FPSCR_ZE) && (fpscr & FPSCR_ZX))
+                code = FPE_FLTDIV;
+
+        /* Inexact result */
+        else if ((fpscr & FPSCR_XE) && (fpscr & FPSCR_XX))
+                code = FPE_FLTRES;
+
+        _exception(SIGFPE, regs, code, regs->nip);
+}
+
+/*
+ * Illegal instruction emulation support.  Originally written to
+ * provide the PVR to user applications using the mfspr rd, PVR.
+ * Return non-zero if we can't emulate, or -EFAULT if the associated
+ * memory access caused an access fault.  Return zero on success.
+ *
+ * There are a couple of ways to do this, either "decode" the instruction
+ * or directly match lots of bits.  In this case, matching lots of
+ * bits is faster and easier.
+ *
+ */
+#define INST_MFSPR_PVR          0x7c1f42a6
+#define INST_MFSPR_PVR_MASK     0xfc1fffff
+
+#define INST_DCBA               0x7c0005ec
+#define INST_DCBA_MASK          0x7c0007fe
+
+#define INST_MCRXR              0x7c000400
+#define INST_MCRXR_MASK         0x7c0007fe
+
+#define INST_STRING             0x7c00042a
+#define INST_STRING_MASK        0x7c0007fe
+#define INST_STRING_GEN_MASK    0x7c00067e
+#define INST_LSWI               0x7c0004aa
+#define INST_LSWX               0x7c00042a
+#define INST_STSWI              0x7c0005aa
+#define INST_STSWX              0x7c00052a
+
+static int emulate_string_inst(struct pt_regs *regs, u32 instword)
+{
+        u8 rT = (instword >> 21) & 0x1f;
+        u8 rA = (instword >> 16) & 0x1f;
+        u8 NB_RB = (instword >> 11) & 0x1f;
+        u32 num_bytes;
+        unsigned long EA;
+        int pos = 0;
+
+        /* Early out if we are an invalid form of lswx */
+        if ((instword & INST_STRING_MASK) == INST_LSWX)
+                if ((rT == rA) || (rT == NB_RB))
+                        return -EINVAL;
+
+        EA = (rA == 0) ? 0 : regs->gpr[rA];
+
+        switch (instword & INST_STRING_MASK) {
+                case INST_LSWX:
+                case INST_STSWX:
+                        EA += NB_RB;
+                        num_bytes = regs->xer & 0x7f;
+                        break;
+                case INST_LSWI:
+                case INST_STSWI:
+                        num_bytes = (NB_RB == 0) ? 32 : NB_RB;
+                        break;
+                default:
+                        return -EINVAL;
+        }
+
+        while (num_bytes != 0)
+        {
+                u8 val;
+                u32 shift = 8 * (3 - (pos & 0x3));
+
+                switch ((instword & INST_STRING_MASK)) {
+                        case INST_LSWX:
+                        case INST_LSWI:
+                                if (get_user(val, (u8 __user *)EA))
+                                        return -EFAULT;
+                                /* first time updating this reg,
+                                 * zero it out */
+                                if (pos == 0)
+                                        regs->gpr[rT] = 0;
+                                regs->gpr[rT] |= val << shift;
+                                break;
+                        case INST_STSWI:
+                        case INST_STSWX:
+                                val = regs->gpr[rT] >> shift;
+                                if (put_user(val, (u8 __user *)EA))
+                                        return -EFAULT;
+                                break;
+                }
+                /* move EA to next address */
+                EA += 1;
+                num_bytes--;
+
+                /* manage our position within the register */
+                if (++pos == 4) {
+                        pos = 0;
+                        if (++rT == 32)
+                                rT = 0;
+                }
+        }
+
+        return 0;
+}
+
+static int emulate_instruction(struct pt_regs *regs)
+{
+        u32 instword;
+        u32 rd;
+
+        if (!user_mode(regs))
+                return -EINVAL;
+        CHECK_FULL_REGS(regs);
+
+        if (get_user(instword, (u32 __user *)(regs->nip)))
+                return -EFAULT;
+
+        /* Emulate the mfspr rD, PVR. */
+        if ((instword & INST_MFSPR_PVR_MASK) == INST_MFSPR_PVR) {
+                rd = (instword >> 21) & 0x1f;
+                regs->gpr[rd] = mfspr(SPRN_PVR);
+                return 0;
+        }
+
+        /* Emulating the dcba insn is just a no-op.  */
+        if ((instword & INST_DCBA_MASK) == INST_DCBA)
+                return 0;
+
+        /* Emulate the mcrxr insn.  */
+        if ((instword & INST_MCRXR_MASK) == INST_MCRXR) {
+                int shift = (instword >> 21) & 0x1c;
+                unsigned long msk = 0xf0000000UL >> shift;
+
+                regs->ccr = (regs->ccr & ~msk) | ((regs->xer >> shift) & msk);
+                regs->xer &= ~0xf0000000UL;
+                return 0;
+        }
+
+        /* Emulate load/store string insn. */
+        if ((instword & INST_STRING_GEN_MASK) == INST_STRING)
+                return emulate_string_inst(regs, instword);
+
+        return -EINVAL;
+}
+
+/*
+ * Look through the list of trap instructions that are used for BUG(),
+ * BUG_ON() and WARN_ON() and see if we hit one.  At this point we know
+ * that the exception was caused by a trap instruction of some kind.
+ * Returns 1 if we should continue (i.e. it was a WARN_ON) or 0
+ * otherwise.
+ */
+extern struct bug_entry __start___bug_table[], __stop___bug_table[];
+
+#ifndef CONFIG_MODULES
+#define module_find_bug(x)      NULL
+#endif
+
+struct bug_entry *find_bug(unsigned long bugaddr)
+{
+        struct bug_entry *bug;
+
+        for (bug = __start___bug_table; bug < __stop___bug_table; ++bug)
+                if (bugaddr == bug->bug_addr)
+                        return bug;
+        return module_find_bug(bugaddr);
+}
+
+static int check_bug_trap(struct pt_regs *regs)
+{
+        struct bug_entry *bug;
+        unsigned long addr;
+
+        if (regs->msr & MSR_PR)
+                return 0;       /* not in kernel */
+        addr = regs->nip;       /* address of trap instruction */
+        if (addr < PAGE_OFFSET)
+                return 0;
+        bug = find_bug(regs->nip);
+        if (bug == NULL)
+                return 0;
+        if (bug->line & BUG_WARNING_TRAP) {
+                /* this is a WARN_ON rather than BUG/BUG_ON */
+#ifdef CONFIG_XMON
+                xmon_printf(KERN_ERR "Badness in %s at %s:%d\n",
+                       bug->function, bug->file,
+                       bug->line & ~BUG_WARNING_TRAP);
+#endif /* CONFIG_XMON */                
+                printk(KERN_ERR "Badness in %s at %s:%d\n",
+                       bug->function, bug->file,
+                       bug->line & ~BUG_WARNING_TRAP);
+                dump_stack();
+                return 1;
+        }
+#ifdef CONFIG_XMON
+        xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
+               bug->function, bug->file, bug->line);
+        xmon(regs);
+#endif /* CONFIG_XMON */
+        printk(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
+               bug->function, bug->file, bug->line);
+
+        return 0;
+}
+
+void __kprobes program_check_exception(struct pt_regs *regs)
+{
+        unsigned int reason = get_reason(regs);
+        extern int do_mathemu(struct pt_regs *regs);
+
+#ifdef CONFIG_MATH_EMULATION
+        /* (reason & REASON_ILLEGAL) would be the obvious thing here,
+         * but there seems to be a hardware bug on the 405GP (RevD)
+         * that means ESR is sometimes set incorrectly - either to
+         * ESR_DST (!?) or 0.  In the process of chasing this with the
+         * hardware people - not sure if it can happen on any illegal
+         * instruction or only on FP instructions, whether there is a
+         * pattern to occurences etc. -dgibson 31/Mar/2003 */
+        if (!(reason & REASON_TRAP) && do_mathemu(regs) == 0) {
+                emulate_single_step(regs);
+                return;
+        }
+#endif /* CONFIG_MATH_EMULATION */
+
+        if (reason & REASON_FP) {
+                /* IEEE FP exception */
+                parse_fpe(regs);
+                return;
+        }
+        if (reason & REASON_TRAP) {
+                /* trap exception */
+                if (notify_die(DIE_BPT, "breakpoint", regs, 5, 5, SIGTRAP)
+                                == NOTIFY_STOP)
+                        return;
+                if (debugger_bpt(regs))
+                        return;
+                if (check_bug_trap(regs)) {
+                        regs->nip += 4;
+                        return;
+                }
+                _exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
+                return;
+        }
+
+        /* Try to emulate it if we should. */
+        if (reason & (REASON_ILLEGAL | REASON_PRIVILEGED)) {
+                switch (emulate_instruction(regs)) {
+                case 0:
+                        regs->nip += 4;
+                        emulate_single_step(regs);
+                        return;
+                case -EFAULT:
+                        _exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
+                        return;
+                }
+        }
+
+        if (reason & REASON_PRIVILEGED)
+                _exception(SIGILL, regs, ILL_PRVOPC, regs->nip);
+        else
+                _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
+}
+
+void alignment_exception(struct pt_regs *regs)
+{
+        int fixed;
+
+        fixed = fix_alignment(regs);
+
+        if (fixed == 1) {
+                regs->nip += 4; /* skip over emulated instruction */
+                emulate_single_step(regs);
+                return;
+        }
+
+        /* Operand address was bad */
+        if (fixed == -EFAULT) {
+                if (user_mode(regs))
+                        _exception(SIGSEGV, regs, SEGV_ACCERR, regs->dar);
+                else
+                        /* Search exception table */
+                        bad_page_fault(regs, regs->dar, SIGSEGV);
+                return;
+        }
+        _exception(SIGBUS, regs, BUS_ADRALN, regs->dar);
+}
+
+void StackOverflow(struct pt_regs *regs)
+{
+        printk(KERN_CRIT "Kernel stack overflow in process %p, r1=%lx\n",
+               current, regs->gpr[1]);
+        debugger(regs);
+        show_regs(regs);
+        panic("kernel stack overflow");
+}
+
+void nonrecoverable_exception(struct pt_regs *regs)
+{
+        printk(KERN_ERR "Non-recoverable exception at PC=%lx MSR=%lx\n",
+               regs->nip, regs->msr);
+        debugger(regs);
+        die("nonrecoverable exception", regs, SIGKILL);
+}
+
+void trace_syscall(struct pt_regs *regs)
+{
+        printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld    %s\n",
+               current, current->pid, regs->nip, regs->link, regs->gpr[0],
+               regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted());
+}
+
+void kernel_fp_unavailable_exception(struct pt_regs *regs)
+{
+        printk(KERN_EMERG "Unrecoverable FP Unavailable Exception "
+                          "%lx at %lx\n", regs->trap, regs->nip);
+        die("Unrecoverable FP Unavailable Exception", regs, SIGABRT);
+}
+
+void altivec_unavailable_exception(struct pt_regs *regs)
+{
+#if !defined(CONFIG_ALTIVEC)
+        if (user_mode(regs)) {
+                /* A user program has executed an altivec instruction,
+                   but this kernel doesn't support altivec. */
+                _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
+                return;
+        }
+#endif
+        printk(KERN_EMERG "Unrecoverable VMX/Altivec Unavailable Exception "
+                        "%lx at %lx\n", regs->trap, regs->nip);
+        die("Unrecoverable VMX/Altivec Unavailable Exception", regs, SIGABRT);
+}
+
+#ifdef CONFIG_PPC64
+extern perf_irq_t perf_irq;
+#endif
+
+#if defined(CONFIG_PPC64) || defined(CONFIG_E500)
+void performance_monitor_exception(struct pt_regs *regs)
+{
+        perf_irq(regs);
+}
+#endif
+
+#ifdef CONFIG_8xx
+void SoftwareEmulation(struct pt_regs *regs)
+{
+        extern int do_mathemu(struct pt_regs *);
+        extern int Soft_emulate_8xx(struct pt_regs *);
+        int errcode;
+
+        CHECK_FULL_REGS(regs);
+
+        if (!user_mode(regs)) {
+                debugger(regs);
+                die("Kernel Mode Software FPU Emulation", regs, SIGFPE);
+        }
+
+#ifdef CONFIG_MATH_EMULATION
+        errcode = do_mathemu(regs);
+#else
+        errcode = Soft_emulate_8xx(regs);
+#endif
+        if (errcode) {
+                if (errcode > 0)
+                        _exception(SIGFPE, regs, 0, 0);
+                else if (errcode == -EFAULT)
+                        _exception(SIGSEGV, regs, 0, 0);
+                else
+                        _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
+        } else
+                emulate_single_step(regs);
+}
+#endif /* CONFIG_8xx */
+
+#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
+
+void DebugException(struct pt_regs *regs, unsigned long debug_status)
+{
+        if (debug_status & DBSR_IC) {   /* instruction completion */
+                regs->msr &= ~MSR_DE;
+                if (user_mode(regs)) {
+                        current->thread.dbcr0 &= ~DBCR0_IC;
+                } else {
+                        /* Disable instruction completion */
+                        mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) & ~DBCR0_IC);
+                        /* Clear the instruction completion event */
+                        mtspr(SPRN_DBSR, DBSR_IC);
+                        if (debugger_sstep(regs))
+                                return;
+                }
+                _exception(SIGTRAP, regs, TRAP_TRACE, 0);
+        }
+}
+#endif /* CONFIG_4xx || CONFIG_BOOKE */
+
+#if !defined(CONFIG_TAU_INT)
+void TAUException(struct pt_regs *regs)
+{
+        printk("TAU trap at PC: %lx, MSR: %lx, vector=%lx    %s\n",
+               regs->nip, regs->msr, regs->trap, print_tainted());
+}
+#endif /* CONFIG_INT_TAU */
+
+#ifdef CONFIG_ALTIVEC
+void altivec_assist_exception(struct pt_regs *regs)
+{
+        int err;
+
+        if (!user_mode(regs)) {
+                printk(KERN_EMERG "VMX/Altivec assist exception in kernel mode"
+                       " at %lx\n", regs->nip);
+                die("Kernel VMX/Altivec assist exception", regs, SIGILL);
+        }
+
+        flush_altivec_to_thread(current);
+
+        err = emulate_altivec(regs);
+        if (err == 0) {
+                regs->nip += 4;         /* skip emulated instruction */
+                emulate_single_step(regs);
+                return;
+        }
+
+        if (err == -EFAULT) {
+                /* got an error reading the instruction */
+                _exception(SIGSEGV, regs, SEGV_ACCERR, regs->nip);
+        } else {
+                /* didn't recognize the instruction */
+                /* XXX quick hack for now: set the non-Java bit in the VSCR */
+                if (printk_ratelimit())
+                        printk(KERN_ERR "Unrecognized altivec instruction "
+                               "in %s at %lx\n", current->comm, regs->nip);
+                current->thread.vscr.u[3] |= 0x10000;
+        }
+}
+#endif /* CONFIG_ALTIVEC */
+
+#ifdef CONFIG_FSL_BOOKE
+void CacheLockingException(struct pt_regs *regs, unsigned long address,
+                           unsigned long error_code)
+{
+        /* We treat cache locking instructions from the user
+         * as priv ops, in the future we could try to do
+         * something smarter
+         */
+        if (error_code & (ESR_DLK|ESR_ILK))
+                _exception(SIGILL, regs, ILL_PRVOPC, regs->nip);
+        return;
+}
+#endif /* CONFIG_FSL_BOOKE */
+
+#ifdef CONFIG_SPE
+void SPEFloatingPointException(struct pt_regs *regs)
+{
+        unsigned long spefscr;
+        int fpexc_mode;
+        int code = 0;
+
+        spefscr = current->thread.spefscr;
+        fpexc_mode = current->thread.fpexc_mode;
+
+        /* Hardware does not neccessarily set sticky
+         * underflow/overflow/invalid flags */
+        if ((spefscr & SPEFSCR_FOVF) && (fpexc_mode & PR_FP_EXC_OVF)) {
+                code = FPE_FLTOVF;
+                spefscr |= SPEFSCR_FOVFS;
+        }
+        else if ((spefscr & SPEFSCR_FUNF) && (fpexc_mode & PR_FP_EXC_UND)) {
+                code = FPE_FLTUND;
+                spefscr |= SPEFSCR_FUNFS;
+        }
+        else if ((spefscr & SPEFSCR_FDBZ) && (fpexc_mode & PR_FP_EXC_DIV))
+                code = FPE_FLTDIV;
+        else if ((spefscr & SPEFSCR_FINV) && (fpexc_mode & PR_FP_EXC_INV)) {
+                code = FPE_FLTINV;
+                spefscr |= SPEFSCR_FINVS;
+        }
+        else if ((spefscr & (SPEFSCR_FG | SPEFSCR_FX)) && (fpexc_mode & PR_FP_EXC_RES))
+                code = FPE_FLTRES;
+
+        current->thread.spefscr = spefscr;
+
+        _exception(SIGFPE, regs, code, regs->nip);
+        return;
+}
+#endif
+
+/*
+ * We enter here if we get an unrecoverable exception, that is, one
+ * that happened at a point where the RI (recoverable interrupt) bit
+ * in the MSR is 0.  This indicates that SRR0/1 are live, and that
+ * we therefore lost state by taking this exception.
+ */
+void unrecoverable_exception(struct pt_regs *regs)
+{
+        printk(KERN_EMERG "Unrecoverable exception %lx at %lx\n",
+               regs->trap, regs->nip);
+        die("Unrecoverable exception", regs, SIGABRT);
+}
+
+#ifdef CONFIG_BOOKE_WDT
+/*
+ * Default handler for a Watchdog exception,
+ * spins until a reboot occurs
+ */
+void __attribute__ ((weak)) WatchdogHandler(struct pt_regs *regs)
+{
+        /* Generic WatchdogHandler, implement your own */
+        mtspr(SPRN_TCR, mfspr(SPRN_TCR)&(~TCR_WIE));
+        return;
+}
+
+void WatchdogException(struct pt_regs *regs)
+{
+        printk (KERN_EMERG "PowerPC Book-E Watchdog Exception\n");
+        WatchdogHandler(regs);
+}
+#endif
+
+/*
+ * We enter here if we discover during exception entry that we are
+ * running in supervisor mode with a userspace value in the stack pointer.
+ */
+void kernel_bad_stack(struct pt_regs *regs)
+{
+        printk(KERN_EMERG "Bad kernel stack pointer %lx at %lx\n",
+               regs->gpr[1], regs->nip);
+        die("Bad kernel stack pointer", regs, SIGABRT);
+}
+
+void __init trap_init(void)
+{
+}
diff --git a/arch/ppc/kernel/vecemu.c b/arch/powerpc/kernel/vecemu.c
index 604d0947cb20..604d0947cb20 100644
--- a/arch/ppc/kernel/vecemu.c
+++ b/arch/powerpc/kernel/vecemu.c
diff --git a/arch/ppc64/kernel/vector.S b/arch/powerpc/kernel/vector.S
index b79d33e4001e..66b3d03c5fa5 100644
--- a/arch/ppc64/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -1,11 +1,26 @@
+#include <linux/config.h>
 #include <asm/ppc_asm.h>
-#include <asm/processor.h>
+#include <asm/reg.h>
 
 /*
  * The routines below are in assembler so we can closely control the
  * usage of floating-point registers.  These routines must be called
  * with preempt disabled.
  */
+#ifdef CONFIG_PPC32
+        .data
+fpzero:
+        .long   0
+fpone:
+        .long   0x3f800000      /* 1.0 in single-precision FP */
+fphalf:
+        .long   0x3f000000      /* 0.5 in single-precision FP */
+
+#define LDCONST(fr, name)       \
+        lis     r11,name@ha;    \
+        lfs     fr,name@l(r11)
+#else
+
         .section ".toc","aw"
 fpzero:
         .tc     FD_0_0[TC],0
@@ -14,32 +29,42 @@ fpone:
 fphalf:
         .tc     FD_3fe00000_0[TC],0x3fe0000000000000    /* 0.5 */
 
+#define LDCONST(fr, name)       \
+        lfd     fr,name@toc(r2)
+#endif
+
         .text
 /*
  * Internal routine to enable floating point and set FPSCR to 0.
  * Don't call it from C; it doesn't use the normal calling convention.
  */
 fpenable:
+#ifdef CONFIG_PPC32
+        stwu    r1,-64(r1)
+#else
+        stdu    r1,-64(r1)
+#endif
         mfmsr   r10
         ori     r11,r10,MSR_FP
         mtmsr   r11
         isync
-        stfd    fr31,-8(r1)
-        stfd    fr0,-16(r1)
-        stfd    fr1,-24(r1)
+        stfd    fr0,24(r1)
+        stfd    fr1,16(r1)
+        stfd    fr31,8(r1)
+        LDCONST(fr1, fpzero)
         mffs    fr31
-        lfd     fr1,fpzero@toc(r2)
         mtfsf   0xff,fr1
         blr
 
 fpdisable:
         mtlr    r12
         mtfsf   0xff,fr31
-        lfd     fr1,-24(r1)
-        lfd     fr0,-16(r1)
-        lfd     fr31,-8(r1)
+        lfd     fr31,8(r1)
+        lfd     fr1,16(r1)
+        lfd     fr0,24(r1)
         mtmsr   r10
         isync
+        addi    r1,r1,64
         blr
 
 /*
@@ -82,7 +107,7 @@ _GLOBAL(vsubfp)
 _GLOBAL(vmaddfp)
         mflr    r12
         bl      fpenable
-        stfd    fr2,-32(r1)
+        stfd    fr2,32(r1)
         li      r0,4
         mtctr   r0
         li      r7,0
@@ -93,7 +118,7 @@ _GLOBAL(vmaddfp)
         stfsx   fr0,r3,r7
         addi    r7,r7,4
         bdnz    1b
-        lfd     fr2,-32(r1)
+        lfd     fr2,32(r1)
         b       fpdisable
 
 /*
@@ -102,7 +127,7 @@ _GLOBAL(vmaddfp)
 _GLOBAL(vnmsubfp)
         mflr    r12
         bl      fpenable
-        stfd    fr2,-32(r1)
+        stfd    fr2,32(r1)
         li      r0,4
         mtctr   r0
         li      r7,0
@@ -113,7 +138,7 @@ _GLOBAL(vnmsubfp)
         stfsx   fr0,r3,r7
         addi    r7,r7,4
         bdnz    1b
-        lfd     fr2,-32(r1)
+        lfd     fr2,32(r1)
         b       fpdisable
 
 /*
@@ -124,7 +149,7 @@ _GLOBAL(vrefp)
         mflr    r12
         bl      fpenable
         li      r0,4
-        lfd     fr1,fpone@toc(r2)
+        LDCONST(fr1, fpone)
         mtctr   r0
         li      r6,0
 1:      lfsx    fr0,r4,r6
@@ -143,13 +168,13 @@ _GLOBAL(vrefp)
 _GLOBAL(vrsqrtefp)
         mflr    r12
         bl      fpenable
-        stfd    fr2,-32(r1)
-        stfd    fr3,-40(r1)
-        stfd    fr4,-48(r1)
-        stfd    fr5,-56(r1)
+        stfd    fr2,32(r1)
+        stfd    fr3,40(r1)
+        stfd    fr4,48(r1)
+        stfd    fr5,56(r1)
         li      r0,4
-        lfd     fr4,fpone@toc(r2)
-        lfd     fr5,fphalf@toc(r2)
+        LDCONST(fr4, fpone)
+        LDCONST(fr5, fphalf)
         mtctr   r0
         li      r6,0
 1:      lfsx    fr0,r4,r6
@@ -165,8 +190,8 @@ _GLOBAL(vrsqrtefp)
         stfsx   fr1,r3,r6
         addi    r6,r6,4
         bdnz    1b
-        lfd     fr5,-56(r1)
-        lfd     fr4,-48(r1)
-        lfd     fr3,-40(r1)
-        lfd     fr2,-32(r1)
+        lfd     fr5,56(r1)
+        lfd     fr4,48(r1)
+        lfd     fr3,40(r1)
+        lfd     fr2,32(r1)
         b       fpdisable
diff --git a/arch/ppc64/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 0e555b7a6587..97082a4203ad 100644
--- a/arch/ppc64/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -69,6 +69,16 @@ static int vio_bus_remove(struct device *dev)
         return 1;
 }
 
+/* convert from struct device to struct vio_dev and pass to driver. */
+static void vio_bus_shutdown(struct device *dev)
+{
+        struct vio_dev *viodev = to_vio_dev(dev);
+        struct vio_driver *viodrv = to_vio_driver(dev->driver);
+
+        if (viodrv->shutdown)
+                viodrv->shutdown(viodev);
+}
+
 /**
  * vio_register_driver: - Register a new vio driver
  * @drv:        The vio_driver structure to be registered.
@@ -76,13 +86,13 @@ static int vio_bus_remove(struct device *dev)
 int vio_register_driver(struct vio_driver *viodrv)
 {
         printk(KERN_DEBUG "%s: driver %s registering\n", __FUNCTION__,
-                viodrv->name);
+                viodrv->driver.name);
 
         /* fill in 'struct driver' fields */
-        viodrv->driver.name = viodrv->name;
         viodrv->driver.bus = &vio_bus_type;
         viodrv->driver.probe = vio_bus_probe;
         viodrv->driver.remove = vio_bus_remove;
+        viodrv->driver.shutdown = vio_bus_shutdown;
 
         return driver_register(&viodrv->driver);
 }
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
new file mode 100644
index 000000000000..d4dfcfbce272
--- /dev/null
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -0,0 +1,279 @@
+#include <linux/config.h>
+#ifdef CONFIG_PPC64
+#include <asm/page.h>
+#else
+#define PAGE_SIZE       4096
+#endif
+#include <asm-generic/vmlinux.lds.h>
+
+#ifdef CONFIG_PPC64
+OUTPUT_ARCH(powerpc:common64)
+jiffies = jiffies_64;
+#else
+OUTPUT_ARCH(powerpc:common)
+jiffies = jiffies_64 + 4;
+#endif
+SECTIONS
+{
+  /* Sections to be discarded. */
+  /DISCARD/ : {
+    *(.exitcall.exit)
+    *(.exit.data)
+  }
+
+
+  /* Read-only sections, merged into text segment: */
+#ifdef CONFIG_PPC32
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)           }
+  .dynsym        : { *(.dynsym)         }
+  .dynstr        : { *(.dynstr)         }
+  .rel.text      : { *(.rel.text)               }
+  .rela.text     : { *(.rela.text)      }
+  .rel.data      : { *(.rel.data)               }
+  .rela.data     : { *(.rela.data)      }
+  .rel.rodata    : { *(.rel.rodata)     }
+  .rela.rodata   : { *(.rela.rodata)    }
+  .rel.got       : { *(.rel.got)                }
+  .rela.got      : { *(.rela.got)               }
+  .rel.ctors     : { *(.rel.ctors)      }
+  .rela.ctors    : { *(.rela.ctors)     }
+  .rel.dtors     : { *(.rel.dtors)      }
+  .rela.dtors    : { *(.rela.dtors)     }
+  .rel.bss       : { *(.rel.bss)                }
+  .rela.bss      : { *(.rela.bss)               }
+  .rel.plt       : { *(.rel.plt)                }
+  .rela.plt      : { *(.rela.plt)               }
+/*  .init          : { *(.init) } =0*/
+  .plt : { *(.plt) }
+#endif
+  .text : {
+    *(.text .text.*)
+    SCHED_TEXT
+    LOCK_TEXT
+    KPROBES_TEXT
+    *(.fixup)
+#ifdef CONFIG_PPC32
+    *(.got1)
+    __got2_start = .;
+    *(.got2)
+    __got2_end = .;
+#else
+    . = ALIGN(PAGE_SIZE);
+    _etext = .;
+#endif
+  }
+#ifdef CONFIG_PPC32
+  _etext = .;
+  PROVIDE (etext = .);
+
+  RODATA
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  .fixup   : { *(.fixup) }
+#endif
+
+        __ex_table : {
+                __start___ex_table = .;
+                *(__ex_table)
+                __stop___ex_table = .;
+        }
+
+        __bug_table : {
+                __start___bug_table = .;
+                *(__bug_table)
+                __stop___bug_table = .;
+        }
+
+#ifdef CONFIG_PPC64
+        __ftr_fixup : {
+                __start___ftr_fixup = .;
+                *(__ftr_fixup)
+                __stop___ftr_fixup = .;
+        }
+
+  RODATA
+#endif
+
+#ifdef CONFIG_PPC32
+  /* Read-write section, merged into data segment: */
+  . = ALIGN(PAGE_SIZE);
+  _sdata = .;
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.got.plt) *(.got)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+
+  . = ALIGN(PAGE_SIZE);
+  __nosave_begin = .;
+  .data_nosave : { *(.data.nosave) }
+  . = ALIGN(PAGE_SIZE);
+  __nosave_end = .;
+
+  . = ALIGN(32);
+  .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = ALIGN(8192);
+  .data.init_task : { *(.data.init_task) }
+#endif
+
+  /* will be freed after init */
+  . = ALIGN(PAGE_SIZE);
+  __init_begin = .;
+  .init.text : {
+        _sinittext = .;
+        *(.init.text)
+        _einittext = .;
+  }
+#ifdef CONFIG_PPC32
+  /* .exit.text is discarded at runtime, not link time,
+     to deal with references from __bug_table */
+  .exit.text : { *(.exit.text) }
+#endif
+  .init.data : {
+    *(.init.data);
+    __vtop_table_begin = .;
+    *(.vtop_fixup);
+    __vtop_table_end = .;
+    __ptov_table_begin = .;
+    *(.ptov_fixup);
+    __ptov_table_end = .;
+  }
+
+  . = ALIGN(16);
+  .init.setup : {
+    __setup_start = .;
+    *(.init.setup)
+    __setup_end = .;
+  }
+
+  .initcall.init : {
+        __initcall_start = .;
+        *(.initcall1.init)
+        *(.initcall2.init)
+        *(.initcall3.init)
+        *(.initcall4.init)
+        *(.initcall5.init)
+        *(.initcall6.init)
+        *(.initcall7.init)
+        __initcall_end = .;
+  }
+
+  .con_initcall.init : {
+    __con_initcall_start = .;
+    *(.con_initcall.init)
+    __con_initcall_end = .;
+  }
+
+  SECURITY_INIT
+
+#ifdef CONFIG_PPC32
+  __start___ftr_fixup = .;
+  __ftr_fixup : { *(__ftr_fixup) }
+  __stop___ftr_fixup = .;
+#else
+  . = ALIGN(PAGE_SIZE);
+  .init.ramfs : {
+    __initramfs_start = .;
+    *(.init.ramfs)
+    __initramfs_end = .;
+  }
+#endif
+
+#ifdef CONFIG_PPC32
+  . = ALIGN(32);
+#endif
+  .data.percpu : {
+    __per_cpu_start = .;
+    *(.data.percpu)
+    __per_cpu_end = .;
+  }
+
+ . = ALIGN(PAGE_SIZE);
+#ifdef CONFIG_PPC64
+ . = ALIGN(16384);
+ __init_end = .;
+ /* freed after init ends here */
+
+ /* Read/write sections */
+ . = ALIGN(PAGE_SIZE);
+ . = ALIGN(16384);
+ _sdata = .;
+ /* The initial task and kernel stack */
+ .data.init_task : {
+      *(.data.init_task)
+      }
+
+ . = ALIGN(PAGE_SIZE);
+ .data.page_aligned : {
+      *(.data.page_aligned)
+      }
+
+ .data.cacheline_aligned : {
+      *(.data.cacheline_aligned)
+      }
+
+ .data : {
+      *(.data .data.rel* .toc1)
+      *(.branch_lt)
+      }
+
+ .opd : {
+      *(.opd)
+      }
+
+ .got : {
+      __toc_start = .;
+      *(.got)
+      *(.toc)
+      . = ALIGN(PAGE_SIZE);
+      _edata = .;
+      }
+
+  . = ALIGN(PAGE_SIZE);
+#else
+  __initramfs_start = .;
+  .init.ramfs : {
+    *(.init.ramfs)
+  }
+  __initramfs_end = .;
+
+  . = ALIGN(4096);
+  __init_end = .;
+
+  . = ALIGN(4096);
+  _sextratext = .;
+  _eextratext = .;
+
+  __bss_start = .;
+#endif
+
+  .bss : {
+    __bss_start = .;
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  __bss_stop = .;
+  }
+
+#ifdef CONFIG_PPC64
+  . = ALIGN(PAGE_SIZE);
+#endif
+  _end = . ;
+#ifdef CONFIG_PPC32
+  PROVIDE (end = .);
+#endif
+}
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
new file mode 100644
index 000000000000..e6b2be3bcec1
--- /dev/null
+++ b/arch/powerpc/lib/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile for ppc-specific library files..
+#
+
+ifeq ($(CONFIG_PPC_MERGE),y)
+obj-y                   := string.o
+endif
+
+obj-y                   += strcase.o
+obj-$(CONFIG_PPC32)     += div64.o copy_32.o checksum_32.o
+obj-$(CONFIG_PPC64)     += checksum_64.o copypage_64.o copyuser_64.o \
+                           memcpy_64.o usercopy_64.o mem_64.o
+obj-$(CONFIG_PPC_ISERIES) += e2a.o
+obj-$(CONFIG_XMON)      += sstep.o
+
+ifeq ($(CONFIG_PPC64),y)
+obj-$(CONFIG_SMP)       += locks.o
+obj-$(CONFIG_DEBUG_KERNEL) += sstep.o
+endif
diff --git a/arch/powerpc/lib/checksum_32.S b/arch/powerpc/lib/checksum_32.S
new file mode 100644
index 000000000000..7874e8a80455
--- /dev/null
+++ b/arch/powerpc/lib/checksum_32.S
@@ -0,0 +1,225 @@
+/*
+ * This file contains assembly-language implementations
+ * of IP-style 1's complement checksum routines.
+ *      
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ * Severely hacked about by Paul Mackerras (paulus@cs.anu.edu.au).
+ */
+
+#include <linux/sys.h>
+#include <asm/processor.h>
+#include <asm/errno.h>
+#include <asm/ppc_asm.h>
+
+        .text
+
+/*
+ * ip_fast_csum(buf, len) -- Optimized for IP header
+ * len is in words and is always >= 5.
+ */
+_GLOBAL(ip_fast_csum)
+        lwz     r0,0(r3)
+        lwzu    r5,4(r3)
+        addic.  r4,r4,-2
+        addc    r0,r0,r5
+        mtctr   r4
+        blelr-
+1:      lwzu    r4,4(r3)
+        adde    r0,r0,r4
+        bdnz    1b
+        addze   r0,r0           /* add in final carry */
+        rlwinm  r3,r0,16,0,31   /* fold two halves together */
+        add     r3,r0,r3
+        not     r3,r3
+        srwi    r3,r3,16
+        blr
+
+/*
+ * Compute checksum of TCP or UDP pseudo-header:
+ *   csum_tcpudp_magic(saddr, daddr, len, proto, sum)
+ */     
+_GLOBAL(csum_tcpudp_magic)
+        rlwimi  r5,r6,16,0,15   /* put proto in upper half of len */
+        addc    r0,r3,r4        /* add 4 32-bit words together */
+        adde    r0,r0,r5
+        adde    r0,r0,r7
+        addze   r0,r0           /* add in final carry */
+        rlwinm  r3,r0,16,0,31   /* fold two halves together */
+        add     r3,r0,r3
+        not     r3,r3
+        srwi    r3,r3,16
+        blr
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * csum_partial(buff, len, sum)
+ */
+_GLOBAL(csum_partial)
+        addic   r0,r5,0
+        subi    r3,r3,4
+        srwi.   r6,r4,2
+        beq     3f              /* if we're doing < 4 bytes */
+        andi.   r5,r3,2         /* Align buffer to longword boundary */
+        beq+    1f
+        lhz     r5,4(r3)        /* do 2 bytes to get aligned */
+        addi    r3,r3,2
+        subi    r4,r4,2
+        addc    r0,r0,r5
+        srwi.   r6,r4,2         /* # words to do */
+        beq     3f
+1:      mtctr   r6
+2:      lwzu    r5,4(r3)        /* the bdnz has zero overhead, so it should */
+        adde    r0,r0,r5        /* be unnecessary to unroll this loop */
+        bdnz    2b
+        andi.   r4,r4,3
+3:      cmpwi   0,r4,2
+        blt+    4f
+        lhz     r5,4(r3)
+        addi    r3,r3,2
+        subi    r4,r4,2
+        adde    r0,r0,r5
+4:      cmpwi   0,r4,1
+        bne+    5f
+        lbz     r5,4(r3)
+        slwi    r5,r5,8         /* Upper byte of word */
+        adde    r0,r0,r5
+5:      addze   r3,r0           /* add in final carry */
+        blr
+
+/*
+ * Computes the checksum of a memory block at src, length len,
+ * and adds in "sum" (32-bit), while copying the block to dst.
+ * If an access exception occurs on src or dst, it stores -EFAULT
+ * to *src_err or *dst_err respectively, and (for an error on
+ * src) zeroes the rest of dst.
+ *
+ * csum_partial_copy_generic(src, dst, len, sum, src_err, dst_err)
+ */
+_GLOBAL(csum_partial_copy_generic)
+        addic   r0,r6,0
+        subi    r3,r3,4
+        subi    r4,r4,4
+        srwi.   r6,r5,2
+        beq     3f              /* if we're doing < 4 bytes */
+        andi.   r9,r4,2         /* Align dst to longword boundary */
+        beq+    1f
+81:     lhz     r6,4(r3)        /* do 2 bytes to get aligned */
+        addi    r3,r3,2
+        subi    r5,r5,2
+91:     sth     r6,4(r4)
+        addi    r4,r4,2
+        addc    r0,r0,r6
+        srwi.   r6,r5,2         /* # words to do */
+        beq     3f
+1:      srwi.   r6,r5,4         /* # groups of 4 words to do */
+        beq     10f
+        mtctr   r6
+71:     lwz     r6,4(r3)
+72:     lwz     r9,8(r3)
+73:     lwz     r10,12(r3)
+74:     lwzu    r11,16(r3)
+        adde    r0,r0,r6
+75:     stw     r6,4(r4)
+        adde    r0,r0,r9
+76:     stw     r9,8(r4)
+        adde    r0,r0,r10
+77:     stw     r10,12(r4)
+        adde    r0,r0,r11
+78:     stwu    r11,16(r4)
+        bdnz    71b
+10:     rlwinm. r6,r5,30,30,31  /* # words left to do */
+        beq     13f
+        mtctr   r6
+82:     lwzu    r9,4(r3)
+92:     stwu    r9,4(r4)
+        adde    r0,r0,r9
+        bdnz    82b
+13:     andi.   r5,r5,3
+3:      cmpwi   0,r5,2
+        blt+    4f
+83:     lhz     r6,4(r3)
+        addi    r3,r3,2
+        subi    r5,r5,2
+93:     sth     r6,4(r4)
+        addi    r4,r4,2
+        adde    r0,r0,r6
+4:      cmpwi   0,r5,1
+        bne+    5f
+84:     lbz     r6,4(r3)
+94:     stb     r6,4(r4)
+        slwi    r6,r6,8         /* Upper byte of word */
+        adde    r0,r0,r6
+5:      addze   r3,r0           /* add in final carry */
+        blr
+
+/* These shouldn't go in the fixup section, since that would
+   cause the ex_table addresses to get out of order. */
+
+src_error_4:
+        mfctr   r6              /* update # bytes remaining from ctr */
+        rlwimi  r5,r6,4,0,27
+        b       79f
+src_error_1:
+        li      r6,0
+        subi    r5,r5,2
+95:     sth     r6,4(r4)
+        addi    r4,r4,2
+79:     srwi.   r6,r5,2
+        beq     3f
+        mtctr   r6
+src_error_2:
+        li      r6,0
+96:     stwu    r6,4(r4)
+        bdnz    96b
+3:      andi.   r5,r5,3
+        beq     src_error
+src_error_3:
+        li      r6,0
+        mtctr   r5
+        addi    r4,r4,3
+97:     stbu    r6,1(r4)
+        bdnz    97b
+src_error:
+        cmpwi   0,r7,0
+        beq     1f
+        li      r6,-EFAULT
+        stw     r6,0(r7)
+1:      addze   r3,r0
+        blr
+
+dst_error:
+        cmpwi   0,r8,0
+        beq     1f
+        li      r6,-EFAULT
+        stw     r6,0(r8)
+1:      addze   r3,r0
+        blr
+
+.section __ex_table,"a"
+        .long   81b,src_error_1
+        .long   91b,dst_error
+        .long   71b,src_error_4
+        .long   72b,src_error_4
+        .long   73b,src_error_4
+        .long   74b,src_error_4
+        .long   75b,dst_error
+        .long   76b,dst_error
+        .long   77b,dst_error
+        .long   78b,dst_error
+        .long   82b,src_error_2
+        .long   92b,dst_error
+        .long   83b,src_error_3
+        .long   93b,dst_error
+        .long   84b,src_error_3
+        .long   94b,dst_error
+        .long   95b,dst_error
+        .long   96b,dst_error
+        .long   97b,dst_error
diff --git a/arch/ppc64/lib/checksum.S b/arch/powerpc/lib/checksum_64.S
index ef96c6c58efc..ef96c6c58efc 100644
--- a/arch/ppc64/lib/checksum.S
+++ b/arch/powerpc/lib/checksum_64.S
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S
new file mode 100644
index 000000000000..bee51414812e
--- /dev/null
+++ b/arch/powerpc/lib/copy_32.S
@@ -0,0 +1,543 @@
+/*
+ * Memory copy functions for 32-bit PowerPC.
+ *
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/cache.h>
+#include <asm/errno.h>
+#include <asm/ppc_asm.h>
+
+#define COPY_16_BYTES           \
+        lwz     r7,4(r4);       \
+        lwz     r8,8(r4);       \
+        lwz     r9,12(r4);      \
+        lwzu    r10,16(r4);     \
+        stw     r7,4(r6);       \
+        stw     r8,8(r6);       \
+        stw     r9,12(r6);      \
+        stwu    r10,16(r6)
+
+#define COPY_16_BYTES_WITHEX(n) \
+8 ## n ## 0:                    \
+        lwz     r7,4(r4);       \
+8 ## n ## 1:                    \
+        lwz     r8,8(r4);       \
+8 ## n ## 2:                    \
+        lwz     r9,12(r4);      \
+8 ## n ## 3:                    \
+        lwzu    r10,16(r4);     \
+8 ## n ## 4:                    \
+        stw     r7,4(r6);       \
+8 ## n ## 5:                    \
+        stw     r8,8(r6);       \
+8 ## n ## 6:                    \
+        stw     r9,12(r6);      \
+8 ## n ## 7:                    \
+        stwu    r10,16(r6)
+
+#define COPY_16_BYTES_EXCODE(n)                 \
+9 ## n ## 0:                                    \
+        addi    r5,r5,-(16 * n);                \
+        b       104f;                           \
+9 ## n ## 1:                                    \
+        addi    r5,r5,-(16 * n);                \
+        b       105f;                           \
+.section __ex_table,"a";                        \
+        .align  2;                              \
+        .long   8 ## n ## 0b,9 ## n ## 0b;      \
+        .long   8 ## n ## 1b,9 ## n ## 0b;      \
+        .long   8 ## n ## 2b,9 ## n ## 0b;      \
+        .long   8 ## n ## 3b,9 ## n ## 0b;      \
+        .long   8 ## n ## 4b,9 ## n ## 1b;      \
+        .long   8 ## n ## 5b,9 ## n ## 1b;      \
+        .long   8 ## n ## 6b,9 ## n ## 1b;      \
+        .long   8 ## n ## 7b,9 ## n ## 1b;      \
+        .text
+
+        .text
+        .stabs  "arch/powerpc/lib/",N_SO,0,0,0f
+        .stabs  "copy32.S",N_SO,0,0,0f
+0:
+
+CACHELINE_BYTES = L1_CACHE_BYTES
+LG_CACHELINE_BYTES = L1_CACHE_SHIFT
+CACHELINE_MASK = (L1_CACHE_BYTES-1)
+
+/*
+ * Use dcbz on the complete cache lines in the destination
+ * to set them to zero.  This requires that the destination
+ * area is cacheable.  -- paulus
+ */
+_GLOBAL(cacheable_memzero)
+        mr      r5,r4
+        li      r4,0
+        addi    r6,r3,-4
+        cmplwi  0,r5,4
+        blt     7f
+        stwu    r4,4(r6)
+        beqlr
+        andi.   r0,r6,3
+        add     r5,r0,r5
+        subf    r6,r0,r6
+        clrlwi  r7,r6,32-LG_CACHELINE_BYTES
+        add     r8,r7,r5
+        srwi    r9,r8,LG_CACHELINE_BYTES
+        addic.  r9,r9,-1        /* total number of complete cachelines */
+        ble     2f
+        xori    r0,r7,CACHELINE_MASK & ~3
+        srwi.   r0,r0,2
+        beq     3f
+        mtctr   r0
+4:      stwu    r4,4(r6)
+        bdnz    4b
+3:      mtctr   r9
+        li      r7,4
+#if !defined(CONFIG_8xx)
+10:     dcbz    r7,r6
+#else
+10:     stw     r4, 4(r6)
+        stw     r4, 8(r6)
+        stw     r4, 12(r6)
+        stw     r4, 16(r6)
+#if CACHE_LINE_SIZE >= 32
+        stw     r4, 20(r6)
+        stw     r4, 24(r6)
+        stw     r4, 28(r6)
+        stw     r4, 32(r6)
+#endif /* CACHE_LINE_SIZE */
+#endif
+        addi    r6,r6,CACHELINE_BYTES
+        bdnz    10b
+        clrlwi  r5,r8,32-LG_CACHELINE_BYTES
+        addi    r5,r5,4
+2:      srwi    r0,r5,2
+        mtctr   r0
+        bdz     6f
+1:      stwu    r4,4(r6)
+        bdnz    1b
+6:      andi.   r5,r5,3
+7:      cmpwi   0,r5,0
+        beqlr
+        mtctr   r5
+        addi    r6,r6,3
+8:      stbu    r4,1(r6)
+        bdnz    8b
+        blr
+
+_GLOBAL(memset)
+        rlwimi  r4,r4,8,16,23
+        rlwimi  r4,r4,16,0,15
+        addi    r6,r3,-4
+        cmplwi  0,r5,4
+        blt     7f
+        stwu    r4,4(r6)
+        beqlr
+        andi.   r0,r6,3
+        add     r5,r0,r5
+        subf    r6,r0,r6
+        srwi    r0,r5,2
+        mtctr   r0
+        bdz     6f
+1:      stwu    r4,4(r6)
+        bdnz    1b
+6:      andi.   r5,r5,3
+7:      cmpwi   0,r5,0
+        beqlr
+        mtctr   r5
+        addi    r6,r6,3
+8:      stbu    r4,1(r6)
+        bdnz    8b
+        blr
+
+/*
+ * This version uses dcbz on the complete cache lines in the
+ * destination area to reduce memory traffic.  This requires that
+ * the destination area is cacheable.
+ * We only use this version if the source and dest don't overlap.
+ * -- paulus.
+ */
+_GLOBAL(cacheable_memcpy)
+        add     r7,r3,r5                /* test if the src & dst overlap */
+        add     r8,r4,r5
+        cmplw   0,r4,r7
+        cmplw   1,r3,r8
+        crand   0,0,4                   /* cr0.lt &= cr1.lt */
+        blt     memcpy                  /* if regions overlap */
+
+        addi    r4,r4,-4
+        addi    r6,r3,-4
+        neg     r0,r3
+        andi.   r0,r0,CACHELINE_MASK    /* # bytes to start of cache line */
+        beq     58f
+
+        cmplw   0,r5,r0                 /* is this more than total to do? */
+        blt     63f                     /* if not much to do */
+        andi.   r8,r0,3                 /* get it word-aligned first */
+        subf    r5,r0,r5
+        mtctr   r8
+        beq+    61f
+70:     lbz     r9,4(r4)                /* do some bytes */
+        stb     r9,4(r6)
+        addi    r4,r4,1
+        addi    r6,r6,1
+        bdnz    70b
+61:     srwi.   r0,r0,2
+        mtctr   r0
+        beq     58f
+72:     lwzu    r9,4(r4)                /* do some words */
+        stwu    r9,4(r6)
+        bdnz    72b
+
+58:     srwi.   r0,r5,LG_CACHELINE_BYTES /* # complete cachelines */
+        clrlwi  r5,r5,32-LG_CACHELINE_BYTES
+        li      r11,4
+        mtctr   r0
+        beq     63f
+53:
+#if !defined(CONFIG_8xx)
+        dcbz    r11,r6
+#endif
+        COPY_16_BYTES
+#if L1_CACHE_BYTES >= 32
+        COPY_16_BYTES
+#if L1_CACHE_BYTES >= 64
+        COPY_16_BYTES
+        COPY_16_BYTES
+#if L1_CACHE_BYTES >= 128
+        COPY_16_BYTES
+        COPY_16_BYTES
+        COPY_16_BYTES
+        COPY_16_BYTES
+#endif
+#endif
+#endif
+        bdnz    53b
+
+63:     srwi.   r0,r5,2
+        mtctr   r0
+        beq     64f
+30:     lwzu    r0,4(r4)
+        stwu    r0,4(r6)
+        bdnz    30b
+
+64:     andi.   r0,r5,3
+        mtctr   r0
+        beq+    65f
+40:     lbz     r0,4(r4)
+        stb     r0,4(r6)
+        addi    r4,r4,1
+        addi    r6,r6,1
+        bdnz    40b
+65:     blr
+
+_GLOBAL(memmove)
+        cmplw   0,r3,r4
+        bgt     backwards_memcpy
+        /* fall through */
+
+_GLOBAL(memcpy)
+        srwi.   r7,r5,3
+        addi    r6,r3,-4
+        addi    r4,r4,-4
+        beq     2f                      /* if less than 8 bytes to do */
+        andi.   r0,r6,3                 /* get dest word aligned */
+        mtctr   r7
+        bne     5f
+1:      lwz     r7,4(r4)
+        lwzu    r8,8(r4)
+        stw     r7,4(r6)
+        stwu    r8,8(r6)
+        bdnz    1b
+        andi.   r5,r5,7
+2:      cmplwi  0,r5,4
+        blt     3f
+        lwzu    r0,4(r4)
+        addi    r5,r5,-4
+        stwu    r0,4(r6)
+3:      cmpwi   0,r5,0
+        beqlr
+        mtctr   r5
+        addi    r4,r4,3
+        addi    r6,r6,3
+4:      lbzu    r0,1(r4)
+        stbu    r0,1(r6)
+        bdnz    4b
+        blr
+5:      subfic  r0,r0,4
+        mtctr   r0
+6:      lbz     r7,4(r4)
+        addi    r4,r4,1
+        stb     r7,4(r6)
+        addi    r6,r6,1
+        bdnz    6b
+        subf    r5,r0,r5
+        rlwinm. r7,r5,32-3,3,31
+        beq     2b
+        mtctr   r7
+        b       1b
+
+_GLOBAL(backwards_memcpy)
+        rlwinm. r7,r5,32-3,3,31         /* r0 = r5 >> 3 */
+        add     r6,r3,r5
+        add     r4,r4,r5
+        beq     2f
+        andi.   r0,r6,3
+        mtctr   r7
+        bne     5f
+1:      lwz     r7,-4(r4)
+        lwzu    r8,-8(r4)
+        stw     r7,-4(r6)
+        stwu    r8,-8(r6)
+        bdnz    1b
+        andi.   r5,r5,7
+2:      cmplwi  0,r5,4
+        blt     3f
+        lwzu    r0,-4(r4)
+        subi    r5,r5,4
+        stwu    r0,-4(r6)
+3:      cmpwi   0,r5,0
+        beqlr
+        mtctr   r5
+4:      lbzu    r0,-1(r4)
+        stbu    r0,-1(r6)
+        bdnz    4b
+        blr
+5:      mtctr   r0
+6:      lbzu    r7,-1(r4)
+        stbu    r7,-1(r6)
+        bdnz    6b
+        subf    r5,r0,r5
+        rlwinm. r7,r5,32-3,3,31
+        beq     2b
+        mtctr   r7
+        b       1b
+
+_GLOBAL(__copy_tofrom_user)
+        addi    r4,r4,-4
+        addi    r6,r3,-4
+        neg     r0,r3
+        andi.   r0,r0,CACHELINE_MASK    /* # bytes to start of cache line */
+        beq     58f
+
+        cmplw   0,r5,r0                 /* is this more than total to do? */
+        blt     63f                     /* if not much to do */
+        andi.   r8,r0,3                 /* get it word-aligned first */
+        mtctr   r8
+        beq+    61f
+70:     lbz     r9,4(r4)                /* do some bytes */
+71:     stb     r9,4(r6)
+        addi    r4,r4,1
+        addi    r6,r6,1
+        bdnz    70b
+61:     subf    r5,r0,r5
+        srwi.   r0,r0,2
+        mtctr   r0
+        beq     58f
+72:     lwzu    r9,4(r4)                /* do some words */
+73:     stwu    r9,4(r6)
+        bdnz    72b
+
+        .section __ex_table,"a"
+        .align  2
+        .long   70b,100f
+        .long   71b,101f
+        .long   72b,102f
+        .long   73b,103f
+        .text
+
+58:     srwi.   r0,r5,LG_CACHELINE_BYTES /* # complete cachelines */
+        clrlwi  r5,r5,32-LG_CACHELINE_BYTES
+        li      r11,4
+        beq     63f
+
+#ifdef CONFIG_8xx
+        /* Don't use prefetch on 8xx */
+        mtctr   r0
+        li      r0,0
+53:     COPY_16_BYTES_WITHEX(0)
+        bdnz    53b
+
+#else /* not CONFIG_8xx */
+        /* Here we decide how far ahead to prefetch the source */
+        li      r3,4
+        cmpwi   r0,1
+        li      r7,0
+        ble     114f
+        li      r7,1
+#if MAX_COPY_PREFETCH > 1
+        /* Heuristically, for large transfers we prefetch
+           MAX_COPY_PREFETCH cachelines ahead.  For small transfers
+           we prefetch 1 cacheline ahead. */
+        cmpwi   r0,MAX_COPY_PREFETCH
+        ble     112f
+        li      r7,MAX_COPY_PREFETCH
+112:    mtctr   r7
+111:    dcbt    r3,r4
+        addi    r3,r3,CACHELINE_BYTES
+        bdnz    111b
+#else
+        dcbt    r3,r4
+        addi    r3,r3,CACHELINE_BYTES
+#endif /* MAX_COPY_PREFETCH > 1 */
+
+114:    subf    r8,r7,r0
+        mr      r0,r7
+        mtctr   r8
+
+53:     dcbt    r3,r4
+54:     dcbz    r11,r6
+        .section __ex_table,"a"
+        .align  2
+        .long   54b,105f
+        .text
+/* the main body of the cacheline loop */
+        COPY_16_BYTES_WITHEX(0)
+#if L1_CACHE_BYTES >= 32
+        COPY_16_BYTES_WITHEX(1)
+#if L1_CACHE_BYTES >= 64
+        COPY_16_BYTES_WITHEX(2)
+        COPY_16_BYTES_WITHEX(3)
+#if L1_CACHE_BYTES >= 128
+        COPY_16_BYTES_WITHEX(4)
+        COPY_16_BYTES_WITHEX(5)
+        COPY_16_BYTES_WITHEX(6)
+        COPY_16_BYTES_WITHEX(7)
+#endif
+#endif
+#endif
+        bdnz    53b
+        cmpwi   r0,0
+        li      r3,4
+        li      r7,0
+        bne     114b
+#endif /* CONFIG_8xx */
+
+63:     srwi.   r0,r5,2
+        mtctr   r0
+        beq     64f
+30:     lwzu    r0,4(r4)
+31:     stwu    r0,4(r6)
+        bdnz    30b
+
+64:     andi.   r0,r5,3
+        mtctr   r0
+        beq+    65f
+40:     lbz     r0,4(r4)
+41:     stb     r0,4(r6)
+        addi    r4,r4,1
+        addi    r6,r6,1
+        bdnz    40b
+65:     li      r3,0
+        blr
+
+/* read fault, initial single-byte copy */
+100:    li      r9,0
+        b       90f
+/* write fault, initial single-byte copy */
+101:    li      r9,1
+90:     subf    r5,r8,r5
+        li      r3,0
+        b       99f
+/* read fault, initial word copy */
+102:    li      r9,0
+        b       91f
+/* write fault, initial word copy */
+103:    li      r9,1
+91:     li      r3,2
+        b       99f
+
+/*
+ * this stuff handles faults in the cacheline loop and branches to either
+ * 104f (if in read part) or 105f (if in write part), after updating r5
+ */
+        COPY_16_BYTES_EXCODE(0)
+#if L1_CACHE_BYTES >= 32
+        COPY_16_BYTES_EXCODE(1)
+#if L1_CACHE_BYTES >= 64
+        COPY_16_BYTES_EXCODE(2)
+        COPY_16_BYTES_EXCODE(3)
+#if L1_CACHE_BYTES >= 128
+        COPY_16_BYTES_EXCODE(4)
+        COPY_16_BYTES_EXCODE(5)
+        COPY_16_BYTES_EXCODE(6)
+        COPY_16_BYTES_EXCODE(7)
+#endif
+#endif
+#endif
+
+/* read fault in cacheline loop */
+104:    li      r9,0
+        b       92f
+/* fault on dcbz (effectively a write fault) */
+/* or write fault in cacheline loop */
+105:    li      r9,1
+92:     li      r3,LG_CACHELINE_BYTES
+        mfctr   r8
+        add     r0,r0,r8
+        b       106f
+/* read fault in final word loop */
+108:    li      r9,0
+        b       93f
+/* write fault in final word loop */
+109:    li      r9,1
+93:     andi.   r5,r5,3
+        li      r3,2
+        b       99f
+/* read fault in final byte loop */
+110:    li      r9,0
+        b       94f
+/* write fault in final byte loop */
+111:    li      r9,1
+94:     li      r5,0
+        li      r3,0
+/*
+ * At this stage the number of bytes not copied is
+ * r5 + (ctr << r3), and r9 is 0 for read or 1 for write.
+ */
+99:     mfctr   r0
+106:    slw     r3,r0,r3
+        add.    r3,r3,r5
+        beq     120f                    /* shouldn't happen */
+        cmpwi   0,r9,0
+        bne     120f
+/* for a read fault, first try to continue the copy one byte at a time */
+        mtctr   r3
+130:    lbz     r0,4(r4)
+131:    stb     r0,4(r6)
+        addi    r4,r4,1
+        addi    r6,r6,1
+        bdnz    130b
+/* then clear out the destination: r3 bytes starting at 4(r6) */
+132:    mfctr   r3
+        srwi.   r0,r3,2
+        li      r9,0
+        mtctr   r0
+        beq     113f
+112:    stwu    r9,4(r6)
+        bdnz    112b
+113:    andi.   r0,r3,3
+        mtctr   r0
+        beq     120f
+114:    stb     r9,4(r6)
+        addi    r6,r6,1
+        bdnz    114b
+120:    blr
+
+        .section __ex_table,"a"
+        .align  2
+        .long   30b,108b
+        .long   31b,109b
+        .long   40b,110b
+        .long   41b,111b
+        .long   130b,132b
+        .long   131b,120b
+        .long   112b,120b
+        .long   114b,120b
+        .text
diff --git a/arch/ppc64/lib/copypage.S b/arch/powerpc/lib/copypage_64.S
index 733d61618bbf..733d61618bbf 100644
--- a/arch/ppc64/lib/copypage.S
+++ b/arch/powerpc/lib/copypage_64.S
diff --git a/arch/ppc64/lib/copyuser.S b/arch/powerpc/lib/copyuser_64.S
index a0b3fbbd6fb1..a0b3fbbd6fb1 100644
--- a/arch/ppc64/lib/copyuser.S
+++ b/arch/powerpc/lib/copyuser_64.S
diff --git a/arch/powerpc/lib/div64.S b/arch/powerpc/lib/div64.S
new file mode 100644
index 000000000000..83d9832fd919
--- /dev/null
+++ b/arch/powerpc/lib/div64.S
@@ -0,0 +1,59 @@
+/*
+ * Divide a 64-bit unsigned number by a 32-bit unsigned number.
+ * This routine assumes that the top 32 bits of the dividend are
+ * non-zero to start with.
+ * On entry, r3 points to the dividend, which get overwritten with
+ * the 64-bit quotient, and r4 contains the divisor.
+ * On exit, r3 contains the remainder.
+ *
+ * Copyright (C) 2002 Paul Mackerras, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <asm/ppc_asm.h>
+#include <asm/processor.h>
+
+_GLOBAL(__div64_32)
+        lwz     r5,0(r3)        # get the dividend into r5/r6
+        lwz     r6,4(r3)
+        cmplw   r5,r4
+        li      r7,0
+        li      r8,0
+        blt     1f
+        divwu   r7,r5,r4        # if dividend.hi >= divisor,
+        mullw   r0,r7,r4        # quotient.hi = dividend.hi / divisor
+        subf.   r5,r0,r5        # dividend.hi %= divisor
+        beq     3f
+1:      mr      r11,r5          # here dividend.hi != 0
+        andis.  r0,r5,0xc000
+        bne     2f
+        cntlzw  r0,r5           # we are shifting the dividend right
+        li      r10,-1          # to make it < 2^32, and shifting
+        srw     r10,r10,r0      # the divisor right the same amount,
+        addc    r9,r4,r10       # rounding up (so the estimate cannot
+        andc    r11,r6,r10      # ever be too large, only too small)
+        andc    r9,r9,r10
+        addze   r9,r9
+        or      r11,r5,r11
+        rotlw   r9,r9,r0
+        rotlw   r11,r11,r0
+        divwu   r11,r11,r9      # then we divide the shifted quantities
+2:      mullw   r10,r11,r4      # to get an estimate of the quotient,
+        mulhwu  r9,r11,r4       # multiply the estimate by the divisor,
+        subfc   r6,r10,r6       # take the product from the divisor,
+        add     r8,r8,r11       # and add the estimate to the accumulated
+        subfe.  r5,r9,r5        # quotient
+        bne     1b
+3:      cmplw   r6,r4
+        blt     4f
+        divwu   r0,r6,r4        # perform the remaining 32-bit division
+        mullw   r10,r0,r4       # and get the remainder
+        add     r8,r8,r0
+        subf    r6,r10,r6
+4:      stw     r7,0(r3)        # return the quotient in *r3
+        stw     r8,4(r3)
+        mr      r3,r6           # return the remainder in r3
+        blr
diff --git a/arch/ppc64/lib/e2a.c b/arch/powerpc/lib/e2a.c
index d2b834887920..d2b834887920 100644
--- a/arch/ppc64/lib/e2a.c
+++ b/arch/powerpc/lib/e2a.c
diff --git a/arch/ppc64/lib/locks.c b/arch/powerpc/lib/locks.c
index 033643ab69e0..3794715b2972 100644
--- a/arch/ppc64/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -17,11 +17,12 @@
 #include <linux/spinlock.h>
 #include <linux/module.h>
 #include <linux/stringify.h>
-#include <asm/hvcall.h>
-#include <asm/iSeries/HvCall.h>
+#include <linux/smp.h>
 
 /* waiting for a spinlock... */
 #if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
+#include <asm/hvcall.h>
+#include <asm/iSeries/HvCall.h>
 
 void __spin_yield(raw_spinlock_t *lock)
 {
diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
new file mode 100644
index 000000000000..68df20283ff5
--- /dev/null
+++ b/arch/powerpc/lib/mem_64.S
@@ -0,0 +1,119 @@
+/*
+ * String handling functions for PowerPC.
+ *
+ * Copyright (C) 1996 Paul Mackerras.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <asm/processor.h>
+#include <asm/errno.h>
+#include <asm/ppc_asm.h>
+
+_GLOBAL(memset)
+        neg     r0,r3
+        rlwimi  r4,r4,8,16,23
+        andi.   r0,r0,7                 /* # bytes to be 8-byte aligned */
+        rlwimi  r4,r4,16,0,15
+        cmplw   cr1,r5,r0               /* do we get that far? */
+        rldimi  r4,r4,32,0
+        mtcrf   1,r0
+        mr      r6,r3
+        blt     cr1,8f
+        beq+    3f                      /* if already 8-byte aligned */
+        subf    r5,r0,r5
+        bf      31,1f
+        stb     r4,0(r6)
+        addi    r6,r6,1
+1:      bf      30,2f
+        sth     r4,0(r6)
+        addi    r6,r6,2
+2:      bf      29,3f
+        stw     r4,0(r6)
+        addi    r6,r6,4
+3:      srdi.   r0,r5,6
+        clrldi  r5,r5,58
+        mtctr   r0
+        beq     5f
+4:      std     r4,0(r6)
+        std     r4,8(r6)
+        std     r4,16(r6)
+        std     r4,24(r6)
+        std     r4,32(r6)
+        std     r4,40(r6)
+        std     r4,48(r6)
+        std     r4,56(r6)
+        addi    r6,r6,64
+        bdnz    4b
+5:      srwi.   r0,r5,3
+        clrlwi  r5,r5,29
+        mtcrf   1,r0
+        beq     8f
+        bf      29,6f
+        std     r4,0(r6)
+        std     r4,8(r6)
+        std     r4,16(r6)
+        std     r4,24(r6)
+        addi    r6,r6,32
+6:      bf      30,7f
+        std     r4,0(r6)
+        std     r4,8(r6)
+        addi    r6,r6,16
+7:      bf      31,8f
+        std     r4,0(r6)
+        addi    r6,r6,8
+8:      cmpwi   r5,0
+        mtcrf   1,r5
+        beqlr+
+        bf      29,9f
+        stw     r4,0(r6)
+        addi    r6,r6,4
+9:      bf      30,10f
+        sth     r4,0(r6)
+        addi    r6,r6,2
+10:     bflr    31
+        stb     r4,0(r6)
+        blr
+
+_GLOBAL(memmove)
+        cmplw   0,r3,r4
+        bgt     .backwards_memcpy
+        b       .memcpy
+
+_GLOBAL(backwards_memcpy)
+        rlwinm. r7,r5,32-3,3,31         /* r0 = r5 >> 3 */
+        add     r6,r3,r5
+        add     r4,r4,r5
+        beq     2f
+        andi.   r0,r6,3
+        mtctr   r7
+        bne     5f
+1:      lwz     r7,-4(r4)
+        lwzu    r8,-8(r4)
+        stw     r7,-4(r6)
+        stwu    r8,-8(r6)
+        bdnz    1b
+        andi.   r5,r5,7
+2:      cmplwi  0,r5,4
+        blt     3f
+        lwzu    r0,-4(r4)
+        subi    r5,r5,4
+        stwu    r0,-4(r6)
+3:      cmpwi   0,r5,0
+        beqlr
+        mtctr   r5
+4:      lbzu    r0,-1(r4)
+        stbu    r0,-1(r6)
+        bdnz    4b
+        blr
+5:      mtctr   r0
+6:      lbzu    r7,-1(r4)
+        stbu    r7,-1(r6)
+        bdnz    6b
+        subf    r5,r0,r5
+        rlwinm. r7,r5,32-3,3,31
+        beq     2b
+        mtctr   r7
+        b       1b
diff --git a/arch/ppc64/lib/memcpy.S b/arch/powerpc/lib/memcpy_64.S
index 9ccacdf5bcb9..9ccacdf5bcb9 100644
--- a/arch/ppc64/lib/memcpy.S
+++ b/arch/powerpc/lib/memcpy_64.S
diff --git a/arch/powerpc/lib/rheap.c b/arch/powerpc/lib/rheap.c
new file mode 100644
index 000000000000..42c5de2c898f
--- /dev/null
+++ b/arch/powerpc/lib/rheap.c
@@ -0,0 +1,693 @@
+/*
+ * arch/ppc/syslib/rheap.c
+ *
+ * A Remote Heap.  Remote means that we don't touch the memory that the
+ * heap points to. Normal heap implementations use the memory they manage
+ * to place their list. We cannot do that because the memory we manage may
+ * have special properties, for example it is uncachable or of different
+ * endianess.
+ *
+ * Author: Pantelis Antoniou <panto@intracom.gr>
+ *
+ * 2004 (c) INTRACOM S.A. Greece. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include <asm/rheap.h>
+
+/*
+ * Fixup a list_head, needed when copying lists.  If the pointers fall
+ * between s and e, apply the delta.  This assumes that
+ * sizeof(struct list_head *) == sizeof(unsigned long *).
+ */
+static inline void fixup(unsigned long s, unsigned long e, int d,
+                         struct list_head *l)
+{
+        unsigned long *pp;
+
+        pp = (unsigned long *)&l->next;
+        if (*pp >= s && *pp < e)
+                *pp += d;
+
+        pp = (unsigned long *)&l->prev;
+        if (*pp >= s && *pp < e)
+                *pp += d;
+}
+
+/* Grow the allocated blocks */
+static int grow(rh_info_t * info, int max_blocks)
+{
+        rh_block_t *block, *blk;
+        int i, new_blocks;
+        int delta;
+        unsigned long blks, blke;
+
+        if (max_blocks <= info->max_blocks)
+                return -EINVAL;
+
+        new_blocks = max_blocks - info->max_blocks;
+
+        block = kmalloc(sizeof(rh_block_t) * max_blocks, GFP_KERNEL);
+        if (block == NULL)
+                return -ENOMEM;
+
+        if (info->max_blocks > 0) {
+
+                /* copy old block area */
+                memcpy(block, info->block,
+                       sizeof(rh_block_t) * info->max_blocks);
+
+                delta = (char *)block - (char *)info->block;
+
+                /* and fixup list pointers */
+                blks = (unsigned long)info->block;
+                blke = (unsigned long)(info->block + info->max_blocks);
+
+                for (i = 0, blk = block; i < info->max_blocks; i++, blk++)
+                        fixup(blks, blke, delta, &blk->list);
+
+                fixup(blks, blke, delta, &info->empty_list);
+                fixup(blks, blke, delta, &info->free_list);
+                fixup(blks, blke, delta, &info->taken_list);
+
+                /* free the old allocated memory */
+                if ((info->flags & RHIF_STATIC_BLOCK) == 0)
+                        kfree(info->block);
+        }
+
+        info->block = block;
+        info->empty_slots += new_blocks;
+        info->max_blocks = max_blocks;
+        info->flags &= ~RHIF_STATIC_BLOCK;
+
+        /* add all new blocks to the free list */
+        for (i = 0, blk = block + info->max_blocks; i < new_blocks; i++, blk++)
+                list_add(&blk->list, &info->empty_list);
+
+        return 0;
+}
+
+/*
+ * Assure at least the required amount of empty slots.  If this function
+ * causes a grow in the block area then all pointers kept to the block
+ * area are invalid!
+ */
+static int assure_empty(rh_info_t * info, int slots)
+{
+        int max_blocks;
+
+        /* This function is not meant to be used to grow uncontrollably */
+        if (slots >= 4)
+                return -EINVAL;
+
+        /* Enough space */
+        if (info->empty_slots >= slots)
+                return 0;
+
+        /* Next 16 sized block */
+        max_blocks = ((info->max_blocks + slots) + 15) & ~15;
+
+        return grow(info, max_blocks);
+}
+
+static rh_block_t *get_slot(rh_info_t * info)
+{
+        rh_block_t *blk;
+
+        /* If no more free slots, and failure to extend. */
+        /* XXX: You should have called assure_empty before */
+        if (info->empty_slots == 0) {
+                printk(KERN_ERR "rh: out of slots; crash is imminent.\n");
+                return NULL;
+        }
+
+        /* Get empty slot to use */
+        blk = list_entry(info->empty_list.next, rh_block_t, list);
+        list_del_init(&blk->list);
+        info->empty_slots--;
+
+        /* Initialize */
+        blk->start = NULL;
+        blk->size = 0;
+        blk->owner = NULL;
+
+        return blk;
+}
+
+static inline void release_slot(rh_info_t * info, rh_block_t * blk)
+{
+        list_add(&blk->list, &info->empty_list);
+        info->empty_slots++;
+}
+
+static void attach_free_block(rh_info_t * info, rh_block_t * blkn)
+{
+        rh_block_t *blk;
+        rh_block_t *before;
+        rh_block_t *after;
+        rh_block_t *next;
+        int size;
+        unsigned long s, e, bs, be;
+        struct list_head *l;
+
+        /* We assume that they are aligned properly */
+        size = blkn->size;
+        s = (unsigned long)blkn->start;
+        e = s + size;
+
+        /* Find the blocks immediately before and after the given one
+         * (if any) */
+        before = NULL;
+        after = NULL;
+        next = NULL;
+
+        list_for_each(l, &info->free_list) {
+                blk = list_entry(l, rh_block_t, list);
+
+                bs = (unsigned long)blk->start;
+                be = bs + blk->size;
+
+                if (next == NULL && s >= bs)
+                        next = blk;
+
+                if (be == s)
+                        before = blk;
+
+                if (e == bs)
+                        after = blk;
+
+                /* If both are not null, break now */
+                if (before != NULL && after != NULL)
+                        break;
+        }
+
+        /* Now check if they are really adjacent */
+        if (before != NULL && s != (unsigned long)before->start + before->size)
+                before = NULL;
+
+        if (after != NULL && e != (unsigned long)after->start)
+                after = NULL;
+
+        /* No coalescing; list insert and return */
+        if (before == NULL && after == NULL) {
+
+                if (next != NULL)
+                        list_add(&blkn->list, &next->list);
+                else
+                        list_add(&blkn->list, &info->free_list);
+
+                return;
+        }
+
+        /* We don't need it anymore */
+        release_slot(info, blkn);
+
+        /* Grow the before block */
+        if (before != NULL && after == NULL) {
+                before->size += size;
+                return;
+        }
+
+        /* Grow the after block backwards */
+        if (before == NULL && after != NULL) {
+                after->start = (int8_t *)after->start - size;
+                after->size += size;
+                return;
+        }
+
+        /* Grow the before block, and release the after block */
+        before->size += size + after->size;
+        list_del(&after->list);
+        release_slot(info, after);
+}
+
+static void attach_taken_block(rh_info_t * info, rh_block_t * blkn)
+{
+        rh_block_t *blk;
+        struct list_head *l;
+
+        /* Find the block immediately before the given one (if any) */
+        list_for_each(l, &info->taken_list) {
+                blk = list_entry(l, rh_block_t, list);
+                if (blk->start > blkn->start) {
+                        list_add_tail(&blkn->list, &blk->list);
+                        return;
+                }
+        }
+
+        list_add_tail(&blkn->list, &info->taken_list);
+}
+
+/*
+ * Create a remote heap dynamically.  Note that no memory for the blocks
+ * are allocated.  It will upon the first allocation
+ */
+rh_info_t *rh_create(unsigned int alignment)
+{
+        rh_info_t *info;
+
+        /* Alignment must be a power of two */
+        if ((alignment & (alignment - 1)) != 0)
+                return ERR_PTR(-EINVAL);
+
+        info = kmalloc(sizeof(*info), GFP_KERNEL);
+        if (info == NULL)
+                return ERR_PTR(-ENOMEM);
+
+        info->alignment = alignment;
+
+        /* Initially everything as empty */
+        info->block = NULL;
+        info->max_blocks = 0;
+        info->empty_slots = 0;
+        info->flags = 0;
+
+        INIT_LIST_HEAD(&info->empty_list);
+        INIT_LIST_HEAD(&info->free_list);
+        INIT_LIST_HEAD(&info->taken_list);
+
+        return info;
+}
+
+/*
+ * Destroy a dynamically created remote heap.  Deallocate only if the areas
+ * are not static
+ */
+void rh_destroy(rh_info_t * info)
+{
+        if ((info->flags & RHIF_STATIC_BLOCK) == 0 && info->block != NULL)
+                kfree(info->block);
+
+        if ((info->flags & RHIF_STATIC_INFO) == 0)
+                kfree(info);
+}
+
+/*
+ * Initialize in place a remote heap info block.  This is needed to support
+ * operation very early in the startup of the kernel, when it is not yet safe
+ * to call kmalloc.
+ */
+void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks,
+             rh_block_t * block)
+{
+        int i;
+        rh_block_t *blk;
+
+        /* Alignment must be a power of two */
+        if ((alignment & (alignment - 1)) != 0)
+                return;
+
+        info->alignment = alignment;
+
+        /* Initially everything as empty */
+        info->block = block;
+        info->max_blocks = max_blocks;
+        info->empty_slots = max_blocks;
+        info->flags = RHIF_STATIC_INFO | RHIF_STATIC_BLOCK;
+
+        INIT_LIST_HEAD(&info->empty_list);
+        INIT_LIST_HEAD(&info->free_list);
+        INIT_LIST_HEAD(&info->taken_list);
+
+        /* Add all new blocks to the free list */
+        for (i = 0, blk = block; i < max_blocks; i++, blk++)
+                list_add(&blk->list, &info->empty_list);
+}
+
+/* Attach a free memory region, coalesces regions if adjuscent */
+int rh_attach_region(rh_info_t * info, void *start, int size)
+{
+        rh_block_t *blk;
+        unsigned long s, e, m;
+        int r;
+
+        /* The region must be aligned */
+        s = (unsigned long)start;
+        e = s + size;
+        m = info->alignment - 1;
+
+        /* Round start up */
+        s = (s + m) & ~m;
+
+        /* Round end down */
+        e = e & ~m;
+
+        /* Take final values */
+        start = (void *)s;
+        size = (int)(e - s);
+
+        /* Grow the blocks, if needed */
+        r = assure_empty(info, 1);
+        if (r < 0)
+                return r;
+
+        blk = get_slot(info);
+        blk->start = start;
+        blk->size = size;
+        blk->owner = NULL;
+
+        attach_free_block(info, blk);
+
+        return 0;
+}
+
+/* Detatch given address range, splits free block if needed. */
+void *rh_detach_region(rh_info_t * info, void *start, int size)
+{
+        struct list_head *l;
+        rh_block_t *blk, *newblk;
+        unsigned long s, e, m, bs, be;
+
+        /* Validate size */
+        if (size <= 0)
+                return ERR_PTR(-EINVAL);
+
+        /* The region must be aligned */
+        s = (unsigned long)start;
+        e = s + size;
+        m = info->alignment - 1;
+
+        /* Round start up */
+        s = (s + m) & ~m;
+
+        /* Round end down */
+        e = e & ~m;
+
+        if (assure_empty(info, 1) < 0)
+                return ERR_PTR(-ENOMEM);
+
+        blk = NULL;
+        list_for_each(l, &info->free_list) {
+                blk = list_entry(l, rh_block_t, list);
+                /* The range must lie entirely inside one free block */
+                bs = (unsigned long)blk->start;
+                be = (unsigned long)blk->start + blk->size;
+                if (s >= bs && e <= be)
+                        break;
+                blk = NULL;
+        }
+
+        if (blk == NULL)
+                return ERR_PTR(-ENOMEM);
+
+        /* Perfect fit */
+        if (bs == s && be == e) {
+                /* Delete from free list, release slot */
+                list_del(&blk->list);
+                release_slot(info, blk);
+                return (void *)s;
+        }
+
+        /* blk still in free list, with updated start and/or size */
+        if (bs == s || be == e) {
+                if (bs == s)
+                        blk->start = (int8_t *)blk->start + size;
+                blk->size -= size;
+
+        } else {
+                /* The front free fragment */
+                blk->size = s - bs;
+
+                /* the back free fragment */
+                newblk = get_slot(info);
+                newblk->start = (void *)e;
+                newblk->size = be - e;
+
+                list_add(&newblk->list, &blk->list);
+        }
+
+        return (void *)s;
+}
+
+void *rh_alloc(rh_info_t * info, int size, const char *owner)
+{
+        struct list_head *l;
+        rh_block_t *blk;
+        rh_block_t *newblk;
+        void *start;
+
+        /* Validate size */
+        if (size <= 0)
+                return ERR_PTR(-EINVAL);
+
+        /* Align to configured alignment */
+        size = (size + (info->alignment - 1)) & ~(info->alignment - 1);
+
+        if (assure_empty(info, 1) < 0)
+                return ERR_PTR(-ENOMEM);
+
+        blk = NULL;
+        list_for_each(l, &info->free_list) {
+                blk = list_entry(l, rh_block_t, list);
+                if (size <= blk->size)
+                        break;
+                blk = NULL;
+        }
+
+        if (blk == NULL)
+                return ERR_PTR(-ENOMEM);
+
+        /* Just fits */
+        if (blk->size == size) {
+                /* Move from free list to taken list */
+                list_del(&blk->list);
+                blk->owner = owner;
+                start = blk->start;
+
+                attach_taken_block(info, blk);
+
+                return start;
+        }
+
+        newblk = get_slot(info);
+        newblk->start = blk->start;
+        newblk->size = size;
+        newblk->owner = owner;
+
+        /* blk still in free list, with updated start, size */
+        blk->start = (int8_t *)blk->start + size;
+        blk->size -= size;
+
+        start = newblk->start;
+
+        attach_taken_block(info, newblk);
+
+        return start;
+}
+
+/* allocate at precisely the given address */
+void *rh_alloc_fixed(rh_info_t * info, void *start, int size, const char *owner)
+{
+        struct list_head *l;
+        rh_block_t *blk, *newblk1, *newblk2;
+        unsigned long s, e, m, bs, be;
+
+        /* Validate size */
+        if (size <= 0)
+                return ERR_PTR(-EINVAL);
+
+        /* The region must be aligned */
+        s = (unsigned long)start;
+        e = s + size;
+        m = info->alignment - 1;
+
+        /* Round start up */
+        s = (s + m) & ~m;
+
+        /* Round end down */
+        e = e & ~m;
+
+        if (assure_empty(info, 2) < 0)
+                return ERR_PTR(-ENOMEM);
+
+        blk = NULL;
+        list_for_each(l, &info->free_list) {
+                blk = list_entry(l, rh_block_t, list);
+                /* The range must lie entirely inside one free block */
+                bs = (unsigned long)blk->start;
+                be = (unsigned long)blk->start + blk->size;
+                if (s >= bs && e <= be)
+                        break;
+        }
+
+        if (blk == NULL)
+                return ERR_PTR(-ENOMEM);
+
+        /* Perfect fit */
+        if (bs == s && be == e) {
+                /* Move from free list to taken list */
+                list_del(&blk->list);
+                blk->owner = owner;
+
+                start = blk->start;
+                attach_taken_block(info, blk);
+
+                return start;
+
+        }
+
+        /* blk still in free list, with updated start and/or size */
+        if (bs == s || be == e) {
+                if (bs == s)
+                        blk->start = (int8_t *)blk->start + size;
+                blk->size -= size;
+
+        } else {
+                /* The front free fragment */
+                blk->size = s - bs;
+
+                /* The back free fragment */
+                newblk2 = get_slot(info);
+                newblk2->start = (void *)e;
+                newblk2->size = be - e;
+
+                list_add(&newblk2->list, &blk->list);
+        }
+
+        newblk1 = get_slot(info);
+        newblk1->start = (void *)s;
+        newblk1->size = e - s;
+        newblk1->owner = owner;
+
+        start = newblk1->start;
+        attach_taken_block(info, newblk1);
+
+        return start;
+}
+
+int rh_free(rh_info_t * info, void *start)
+{
+        rh_block_t *blk, *blk2;
+        struct list_head *l;
+        int size;
+
+        /* Linear search for block */
+        blk = NULL;
+        list_for_each(l, &info->taken_list) {
+                blk2 = list_entry(l, rh_block_t, list);
+                if (start < blk2->start)
+                        break;
+                blk = blk2;
+        }
+
+        if (blk == NULL || start > (blk->start + blk->size))
+                return -EINVAL;
+
+        /* Remove from taken list */
+        list_del(&blk->list);
+
+        /* Get size of freed block */
+        size = blk->size;
+        attach_free_block(info, blk);
+
+        return size;
+}
+
+int rh_get_stats(rh_info_t * info, int what, int max_stats, rh_stats_t * stats)
+{
+        rh_block_t *blk;
+        struct list_head *l;
+        struct list_head *h;
+        int nr;
+
+        switch (what) {
+
+        case RHGS_FREE:
+                h = &info->free_list;
+                break;
+
+        case RHGS_TAKEN:
+                h = &info->taken_list;
+                break;
+
+        default:
+                return -EINVAL;
+        }
+
+        /* Linear search for block */
+        nr = 0;
+        list_for_each(l, h) {
+                blk = list_entry(l, rh_block_t, list);
+                if (stats != NULL && nr < max_stats) {
+                        stats->start = blk->start;
+                        stats->size = blk->size;
+                        stats->owner = blk->owner;
+                        stats++;
+                }
+                nr++;
+        }
+
+        return nr;
+}
+
+int rh_set_owner(rh_info_t * info, void *start, const char *owner)
+{
+        rh_block_t *blk, *blk2;
+        struct list_head *l;
+        int size;
+
+        /* Linear search for block */
+        blk = NULL;
+        list_for_each(l, &info->taken_list) {
+                blk2 = list_entry(l, rh_block_t, list);
+                if (start < blk2->start)
+                        break;
+                blk = blk2;
+        }
+
+        if (blk == NULL || start > (blk->start + blk->size))
+                return -EINVAL;
+
+        blk->owner = owner;
+        size = blk->size;
+
+        return size;
+}
+
+void rh_dump(rh_info_t * info)
+{
+        static rh_stats_t st[32];       /* XXX maximum 32 blocks */
+        int maxnr;
+        int i, nr;
+
+        maxnr = sizeof(st) / sizeof(st[0]);
+
+        printk(KERN_INFO
+               "info @0x%p (%d slots empty / %d max)\n",
+               info, info->empty_slots, info->max_blocks);
+
+        printk(KERN_INFO "  Free:\n");
+        nr = rh_get_stats(info, RHGS_FREE, maxnr, st);
+        if (nr > maxnr)
+                nr = maxnr;
+        for (i = 0; i < nr; i++)
+                printk(KERN_INFO
+                       "    0x%p-0x%p (%u)\n",
+                       st[i].start, (int8_t *) st[i].start + st[i].size,
+                       st[i].size);
+        printk(KERN_INFO "\n");
+
+        printk(KERN_INFO "  Taken:\n");
+        nr = rh_get_stats(info, RHGS_TAKEN, maxnr, st);
+        if (nr > maxnr)
+                nr = maxnr;
+        for (i = 0; i < nr; i++)
+                printk(KERN_INFO
+                       "    0x%p-0x%p (%u) %s\n",
+                       st[i].start, (int8_t *) st[i].start + st[i].size,
+                       st[i].size, st[i].owner != NULL ? st[i].owner : "");
+        printk(KERN_INFO "\n");
+}
+
+void rh_dump_blk(rh_info_t * info, rh_block_t * blk)
+{
+        printk(KERN_INFO
+               "blk @0x%p: 0x%p-0x%p (%u)\n",
+               blk, blk->start, (int8_t *) blk->start + blk->size, blk->size);
+}
diff --git a/arch/ppc64/lib/sstep.c b/arch/powerpc/lib/sstep.c
index e79123d1485c..666c2aa55016 100644
--- a/arch/ppc64/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -10,13 +10,18 @@
  */
 #include <linux/kernel.h>
 #include <linux/ptrace.h>
+#include <linux/config.h>
 #include <asm/sstep.h>
 #include <asm/processor.h>
 
 extern char system_call_common[];
 
+#ifdef CONFIG_PPC64
 /* Bits in SRR1 that are copied from MSR */
 #define MSR_MASK        0xffffffff87c0ffff
+#else
+#define MSR_MASK        0x87c0ffff
+#endif
 
 /*
  * Determine whether a conditional branch instruction would branch.
@@ -66,6 +71,7 @@ int emulate_step(struct pt_regs *regs, unsigned int instr)
                 if (branch_taken(instr, regs))
                         regs->nip = imm;
                 return 1;
+#ifdef CONFIG_PPC64
         case 17:        /* sc */
                 /*
                  * N.B. this uses knowledge about how the syscall
@@ -79,6 +85,7 @@ int emulate_step(struct pt_regs *regs, unsigned int instr)
                 regs->nip = (unsigned long) &system_call_common;
                 regs->msr = MSR_KERNEL;
                 return 1;
+#endif
         case 18:        /* b */
                 imm = instr & 0x03fffffc;
                 if (imm & 0x02000000)
@@ -121,6 +128,15 @@ int emulate_step(struct pt_regs *regs, unsigned int instr)
                         if ((regs->msr & MSR_SF) == 0)
                                 regs->nip &= 0xffffffffUL;
                         return 1;
+                case 0x124:     /* mtmsr */
+                        imm = regs->gpr[rd];
+                        if ((imm & MSR_RI) == 0)
+                                /* can't step mtmsr that would clear MSR_RI */
+                                return -1;
+                        regs->msr = imm;
+                        regs->nip += 4;
+                        return 1;
+#ifdef CONFIG_PPC64
                 case 0x164:     /* mtmsrd */
                         /* only MSR_EE and MSR_RI get changed if bit 15 set */
                         /* mtmsrd doesn't change MSR_HV and MSR_ME */
@@ -135,6 +151,7 @@ int emulate_step(struct pt_regs *regs, unsigned int instr)
                         if ((imm & MSR_SF) == 0)
                                 regs->nip &= 0xffffffffUL;
                         return 1;
+#endif
                 }
         }
         return 0;
diff --git a/arch/ppc64/lib/strcase.c b/arch/powerpc/lib/strcase.c
index e84f243368c0..36b521091bbc 100644
--- a/arch/ppc64/lib/strcase.c
+++ b/arch/powerpc/lib/strcase.c
@@ -1,11 +1,3 @@
-/*
- * c 2001 PPC 64 Team, IBM Corp
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
 #include <linux/ctype.h>
 
 int strcasecmp(const char *s1, const char *s2)
diff --git a/arch/powerpc/lib/string.S b/arch/powerpc/lib/string.S
new file mode 100644
index 000000000000..b9ca84ed8927
--- /dev/null
+++ b/arch/powerpc/lib/string.S
@@ -0,0 +1,198 @@
+/*
+ * String handling functions for PowerPC.
+ *
+ * Copyright (C) 1996 Paul Mackerras.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/errno.h>
+#include <asm/ppc_asm.h>
+
+        .section __ex_table,"a"
+#ifdef CONFIG_PPC64
+        .align  3
+#define EXTBL   .llong
+#else
+        .align  2
+#define EXTBL   .long
+#endif
+        .text
+        
+_GLOBAL(strcpy)
+        addi    r5,r3,-1
+        addi    r4,r4,-1
+1:      lbzu    r0,1(r4)
+        cmpwi   0,r0,0
+        stbu    r0,1(r5)
+        bne     1b
+        blr
+
+/* This clears out any unused part of the destination buffer,
+   just as the libc version does.  -- paulus */
+_GLOBAL(strncpy)
+        cmpwi   0,r5,0
+        beqlr
+        mtctr   r5
+        addi    r6,r3,-1
+        addi    r4,r4,-1
+1:      lbzu    r0,1(r4)
+        cmpwi   0,r0,0
+        stbu    r0,1(r6)
+        bdnzf   2,1b            /* dec ctr, branch if ctr != 0 && !cr0.eq */
+        bnelr                   /* if we didn't hit a null char, we're done */
+        mfctr   r5
+        cmpwi   0,r5,0          /* any space left in destination buffer? */
+        beqlr                   /* we know r0 == 0 here */
+2:      stbu    r0,1(r6)        /* clear it out if so */
+        bdnz    2b
+        blr
+
+_GLOBAL(strcat)
+        addi    r5,r3,-1
+        addi    r4,r4,-1
+1:      lbzu    r0,1(r5)
+        cmpwi   0,r0,0
+        bne     1b
+        addi    r5,r5,-1
+1:      lbzu    r0,1(r4)
+        cmpwi   0,r0,0
+        stbu    r0,1(r5)
+        bne     1b
+        blr
+
+_GLOBAL(strcmp)
+        addi    r5,r3,-1
+        addi    r4,r4,-1
+1:      lbzu    r3,1(r5)
+        cmpwi   1,r3,0
+        lbzu    r0,1(r4)
+        subf.   r3,r0,r3
+        beqlr   1
+        beq     1b
+        blr
+
+_GLOBAL(strlen)
+        addi    r4,r3,-1
+1:      lbzu    r0,1(r4)
+        cmpwi   0,r0,0
+        bne     1b
+        subf    r3,r3,r4
+        blr
+
+_GLOBAL(memcmp)
+        cmpwi   0,r5,0
+        ble-    2f
+        mtctr   r5
+        addi    r6,r3,-1
+        addi    r4,r4,-1
+1:      lbzu    r3,1(r6)
+        lbzu    r0,1(r4)
+        subf.   r3,r0,r3
+        bdnzt   2,1b
+        blr
+2:      li      r3,0
+        blr
+
+_GLOBAL(memchr)
+        cmpwi   0,r5,0
+        ble-    2f
+        mtctr   r5
+        addi    r3,r3,-1
+1:      lbzu    r0,1(r3)
+        cmpw    0,r0,r4
+        bdnzf   2,1b
+        beqlr
+2:      li      r3,0
+        blr
+
+_GLOBAL(__clear_user)
+        addi    r6,r3,-4
+        li      r3,0
+        li      r5,0
+        cmplwi  0,r4,4
+        blt     7f
+        /* clear a single word */
+11:     stwu    r5,4(r6)
+        beqlr
+        /* clear word sized chunks */
+        andi.   r0,r6,3
+        add     r4,r0,r4
+        subf    r6,r0,r6
+        srwi    r0,r4,2
+        andi.   r4,r4,3
+        mtctr   r0
+        bdz     7f
+1:      stwu    r5,4(r6)
+        bdnz    1b
+        /* clear byte sized chunks */
+7:      cmpwi   0,r4,0
+        beqlr
+        mtctr   r4
+        addi    r6,r6,3
+8:      stbu    r5,1(r6)
+        bdnz    8b
+        blr
+90:     mr      r3,r4
+        blr
+91:     mfctr   r3
+        slwi    r3,r3,2
+        add     r3,r3,r4
+        blr
+92:     mfctr   r3
+        blr
+
+        .section __ex_table,"a"
+        EXTBL   11b,90b
+        EXTBL   1b,91b
+        EXTBL   8b,92b
+        .text
+
+_GLOBAL(__strncpy_from_user)
+        addi    r6,r3,-1
+        addi    r4,r4,-1
+        cmpwi   0,r5,0
+        beq     2f
+        mtctr   r5
+1:      lbzu    r0,1(r4)
+        cmpwi   0,r0,0
+        stbu    r0,1(r6)
+        bdnzf   2,1b            /* dec ctr, branch if ctr != 0 && !cr0.eq */
+        beq     3f
+2:      addi    r6,r6,1
+3:      subf    r3,r3,r6
+        blr
+99:     li      r3,-EFAULT
+        blr
+
+        .section __ex_table,"a"
+        EXTBL   1b,99b
+        .text
+
+/* r3 = str, r4 = len (> 0), r5 = top (highest addr) */
+_GLOBAL(__strnlen_user)
+        addi    r7,r3,-1
+        subf    r6,r7,r5        /* top+1 - str */
+        cmplw   0,r4,r6
+        bge     0f
+        mr      r6,r4
+0:      mtctr   r6              /* ctr = min(len, top - str) */
+1:      lbzu    r0,1(r7)        /* get next byte */
+        cmpwi   0,r0,0
+        bdnzf   2,1b            /* loop if --ctr != 0 && byte != 0 */
+        addi    r7,r7,1
+        subf    r3,r3,r7        /* number of bytes we have looked at */
+        beqlr                   /* return if we found a 0 byte */
+        cmpw    0,r3,r4         /* did we look at all len bytes? */
+        blt     99f             /* if not, must have hit top */
+        addi    r3,r4,1         /* return len + 1 to indicate no null found */
+        blr
+99:     li      r3,0            /* bad address, return 0 */
+        blr
+
+        .section __ex_table,"a"
+        EXTBL   1b,99b
diff --git a/arch/ppc64/lib/usercopy.c b/arch/powerpc/lib/usercopy_64.c
index 5eea6f3c1e03..5eea6f3c1e03 100644
--- a/arch/ppc64/lib/usercopy.c
+++ b/arch/powerpc/lib/usercopy_64.c
diff --git a/arch/powerpc/mm/44x_mmu.c b/arch/powerpc/mm/44x_mmu.c
new file mode 100644
index 000000000000..3d79ce281b67
--- /dev/null
+++ b/arch/powerpc/mm/44x_mmu.c
@@ -0,0 +1,120 @@
+/*
+ * Modifications by Matt Porter (mporter@mvista.com) to support
+ * PPC44x Book E processors.
+ *
+ * This file contains the routines for initializing the MMU
+ * on the 4xx series of chips.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/stddef.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/highmem.h>
+
+#include <asm/pgalloc.h>
+#include <asm/prom.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
+#include <asm/smp.h>
+#include <asm/bootx.h>
+#include <asm/machdep.h>
+#include <asm/setup.h>
+
+#include "mmu_decl.h"
+
+extern char etext[], _stext[];
+
+/* Used by the 44x TLB replacement exception handler.
+ * Just needed it declared someplace.
+ */
+unsigned int tlb_44x_index = 0;
+unsigned int tlb_44x_hwater = 62;
+
+/*
+ * "Pins" a 256MB TLB entry in AS0 for kernel lowmem
+ */
+static void __init
+ppc44x_pin_tlb(int slot, unsigned int virt, unsigned int phys)
+{
+        unsigned long attrib = 0;
+
+        __asm__ __volatile__("\
+        clrrwi  %2,%2,10\n\
+        ori     %2,%2,%4\n\
+        clrrwi  %1,%1,10\n\
+        li      %0,0\n\
+        ori     %0,%0,%5\n\
+        tlbwe   %2,%3,%6\n\
+        tlbwe   %1,%3,%7\n\
+        tlbwe   %0,%3,%8"
+        :
+        : "r" (attrib), "r" (phys), "r" (virt), "r" (slot),
+          "i" (PPC44x_TLB_VALID | PPC44x_TLB_256M),
+          "i" (PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_SX | PPC44x_TLB_G),
+          "i" (PPC44x_TLB_PAGEID),
+          "i" (PPC44x_TLB_XLAT),
+          "i" (PPC44x_TLB_ATTRIB));
+}
+
+/*
+ * MMU_init_hw does the chip-specific initialization of the MMU hardware.
+ */
+void __init MMU_init_hw(void)
+{
+        flush_instruction_cache();
+}
+
+unsigned long __init mmu_mapin_ram(void)
+{
+        unsigned int pinned_tlbs = 1;
+        int i;
+
+        /* Determine number of entries necessary to cover lowmem */
+        pinned_tlbs = (unsigned int)
+                (_ALIGN(total_lowmem, PPC44x_PIN_SIZE) >> PPC44x_PIN_SHIFT);
+
+        /* Write upper watermark to save location */
+        tlb_44x_hwater = PPC44x_LOW_SLOT - pinned_tlbs;
+
+        /* If necessary, set additional pinned TLBs */
+        if (pinned_tlbs > 1)
+                for (i = (PPC44x_LOW_SLOT-(pinned_tlbs-1)); i < PPC44x_LOW_SLOT; i++) {
+                        unsigned int phys_addr = (PPC44x_LOW_SLOT-i) * PPC44x_PIN_SIZE;
+                        ppc44x_pin_tlb(i, phys_addr+PAGE_OFFSET, phys_addr);
+                }
+
+        return total_lowmem;
+}
diff --git a/arch/powerpc/mm/4xx_mmu.c b/arch/powerpc/mm/4xx_mmu.c
new file mode 100644
index 000000000000..b7bcbc232f39
--- /dev/null
+++ b/arch/powerpc/mm/4xx_mmu.c
@@ -0,0 +1,141 @@
+/*
+ * This file contains the routines for initializing the MMU
+ * on the 4xx series of chips.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/stddef.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/highmem.h>
+
+#include <asm/pgalloc.h>
+#include <asm/prom.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
+#include <asm/smp.h>
+#include <asm/bootx.h>
+#include <asm/machdep.h>
+#include <asm/setup.h>
+#include "mmu_decl.h"
+
+extern int __map_without_ltlbs;
+/*
+ * MMU_init_hw does the chip-specific initialization of the MMU hardware.
+ */
+void __init MMU_init_hw(void)
+{
+        /*
+         * The Zone Protection Register (ZPR) defines how protection will
+         * be applied to every page which is a member of a given zone. At
+         * present, we utilize only two of the 4xx's zones.
+         * The zone index bits (of ZSEL) in the PTE are used for software
+         * indicators, except the LSB.  For user access, zone 1 is used,
+         * for kernel access, zone 0 is used.  We set all but zone 1
+         * to zero, allowing only kernel access as indicated in the PTE.
+         * For zone 1, we set a 01 binary (a value of 10 will not work)
+         * to allow user access as indicated in the PTE.  This also allows
+         * kernel access as indicated in the PTE.
+         */
+
+        mtspr(SPRN_ZPR, 0x10000000);
+
+        flush_instruction_cache();
+
+        /*
+         * Set up the real-mode cache parameters for the exception vector
+         * handlers (which are run in real-mode).
+         */
+
+        mtspr(SPRN_DCWR, 0x00000000);   /* All caching is write-back */
+
+        /*
+         * Cache instruction and data space where the exception
+         * vectors and the kernel live in real-mode.
+         */
+
+        mtspr(SPRN_DCCR, 0xF0000000);   /* 512 MB of data space at 0x0. */
+        mtspr(SPRN_ICCR, 0xF0000000);   /* 512 MB of instr. space at 0x0. */
+}
+
+#define LARGE_PAGE_SIZE_16M     (1<<24)
+#define LARGE_PAGE_SIZE_4M      (1<<22)
+
+unsigned long __init mmu_mapin_ram(void)
+{
+        unsigned long v, s;
+        phys_addr_t p;
+
+        v = KERNELBASE;
+        p = PPC_MEMSTART;
+        s = 0;
+
+        if (__map_without_ltlbs) {
+                return s;
+        }
+
+        while (s <= (total_lowmem - LARGE_PAGE_SIZE_16M)) {
+                pmd_t *pmdp;
+                unsigned long val = p | _PMD_SIZE_16M | _PAGE_HWEXEC | _PAGE_HWWRITE;
+
+                spin_lock(&init_mm.page_table_lock);
+                pmdp = pmd_offset(pgd_offset_k(v), v);
+                pmd_val(*pmdp++) = val;
+                pmd_val(*pmdp++) = val;
+                pmd_val(*pmdp++) = val;
+                pmd_val(*pmdp++) = val;
+                spin_unlock(&init_mm.page_table_lock);
+
+                v += LARGE_PAGE_SIZE_16M;
+                p += LARGE_PAGE_SIZE_16M;
+                s += LARGE_PAGE_SIZE_16M;
+        }
+
+        while (s <= (total_lowmem - LARGE_PAGE_SIZE_4M)) {
+                pmd_t *pmdp;
+                unsigned long val = p | _PMD_SIZE_4M | _PAGE_HWEXEC | _PAGE_HWWRITE;
+
+                spin_lock(&init_mm.page_table_lock);
+                pmdp = pmd_offset(pgd_offset_k(v), v);
+                pmd_val(*pmdp) = val;
+                spin_unlock(&init_mm.page_table_lock);
+
+                v += LARGE_PAGE_SIZE_4M;
+                p += LARGE_PAGE_SIZE_4M;
+                s += LARGE_PAGE_SIZE_4M;
+        }
+
+        return s;
+}
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
new file mode 100644
index 000000000000..93441e7a2921
--- /dev/null
+++ b/arch/powerpc/mm/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the linux ppc-specific parts of the memory manager.
+#
+
+ifeq ($(CONFIG_PPC64),y)
+EXTRA_CFLAGS    += -mno-minimal-toc
+endif
+
+obj-y                           := fault.o mem.o lmb.o
+obj-$(CONFIG_PPC32)             += init_32.o pgtable_32.o mmu_context_32.o
+hash-$(CONFIG_PPC_MULTIPLATFORM) := hash_native_64.o
+obj-$(CONFIG_PPC64)             += init_64.o pgtable_64.o mmu_context_64.o \
+                                   hash_utils_64.o hash_low_64.o tlb_64.o \
+                                   slb_low.o slb.o stab.o mmap.o imalloc.o \
+                                   $(hash-y)
+obj-$(CONFIG_PPC_STD_MMU_32)    += ppc_mmu_32.o hash_low_32.o tlb_32.o
+obj-$(CONFIG_40x)               += 4xx_mmu.o
+obj-$(CONFIG_44x)               += 44x_mmu.o
+obj-$(CONFIG_FSL_BOOKE)         += fsl_booke_mmu.o
+obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o
+obj-$(CONFIG_HUGETLB_PAGE)      += hugetlbpage.o
diff --git a/arch/ppc64/mm/fault.c b/arch/powerpc/mm/fault.c
index be3f25cf3e9f..841d8b6323a8 100644
--- a/arch/ppc64/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -1,7 +1,7 @@
 /*
  *  arch/ppc/mm/fault.c
  *
- *  PowerPC version 
+ *  PowerPC version
  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
  *
  *  Derived from "arch/i386/mm/fault.c"
@@ -24,10 +24,11 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/types.h>
+#include <linux/ptrace.h>
 #include <linux/mman.h>
 #include <linux/mm.h>
 #include <linux/interrupt.h>
-#include <linux/smp_lock.h>
+#include <linux/highmem.h>
 #include <linux/module.h>
 #include <linux/kprobes.h>
 
@@ -37,6 +38,7 @@
 #include <asm/mmu_context.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
+#include <asm/tlbflush.h>
 #include <asm/kdebug.h>
 #include <asm/siginfo.h>
 
@@ -78,6 +80,7 @@ static int store_updates_sp(struct pt_regs *regs)
         return 0;
 }
 
+#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
 static void do_dabr(struct pt_regs *regs, unsigned long error_code)
 {
         siginfo_t info;
@@ -99,12 +102,18 @@ static void do_dabr(struct pt_regs *regs, unsigned long error_code)
         info.si_addr = (void __user *)regs->nip;
         force_sig_info(SIGTRAP, &info, current);
 }
+#endif /* !(CONFIG_4xx || CONFIG_BOOKE)*/
 
 /*
- * The error_code parameter is
+ * For 600- and 800-family processors, the error_code parameter is DSISR
+ * for a data fault, SRR1 for an instruction fault. For 400-family processors
+ * the error_code parameter is ESR for a data fault, 0 for an instruction
+ * fault.
+ * For 64-bit processors, the error_code parameter is
  *  - DSISR for a non-SLB data access fault,
  *  - SRR1 & 0x08000000 for a non-SLB instruction access fault
  *  - 0 any SLB fault.
+ *
  * The return value is 0 if the fault was handled, or the signal
  * number if this is a kernel fault that can't be handled here.
  */
@@ -114,12 +123,25 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
         struct vm_area_struct * vma;
         struct mm_struct *mm = current->mm;
         siginfo_t info;
-        unsigned long code = SEGV_MAPERR;
-        unsigned long is_write = error_code & DSISR_ISSTORE;
-        unsigned long trap = TRAP(regs);
-        unsigned long is_exec = trap == 0x400;
+        int code = SEGV_MAPERR;
+        int is_write = 0;
+        int trap = TRAP(regs);
+        int is_exec = trap == 0x400;
 
-        BUG_ON((trap == 0x380) || (trap == 0x480));
+#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+        /*
+         * Fortunately the bit assignments in SRR1 for an instruction
+         * fault and DSISR for a data fault are mostly the same for the
+         * bits we are interested in.  But there are some bits which
+         * indicate errors in DSISR but can validly be set in SRR1.
+         */
+        if (trap == 0x400)
+                error_code &= 0x48200000;
+        else
+                is_write = error_code & DSISR_ISSTORE;
+#else
+        is_write = error_code & ESR_DST;
+#endif /* CONFIG_4xx || CONFIG_BOOKE */
 
         if (notify_die(DIE_PAGE_FAULT, "page_fault", regs, error_code,
                                 11, SIGSEGV) == NOTIFY_STOP)
@@ -134,10 +156,13 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
         if (!user_mode(regs) && (address >= TASK_SIZE))
                 return SIGSEGV;
 
+#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
         if (error_code & DSISR_DABRMATCH) {
+                /* DABR match */
                 do_dabr(regs, error_code);
                 return 0;
         }
+#endif /* !(CONFIG_4xx || CONFIG_BOOKE)*/
 
         if (in_atomic() || mm == NULL) {
                 if (!user_mode(regs))
@@ -176,10 +201,8 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
         vma = find_vma(mm, address);
         if (!vma)
                 goto bad_area;
-
-        if (vma->vm_start <= address) {
+        if (vma->vm_start <= address)
                 goto good_area;
-        }
         if (!(vma->vm_flags & VM_GROWSDOWN))
                 goto bad_area;
 
@@ -214,35 +237,76 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
                     && (!user_mode(regs) || !store_updates_sp(regs)))
                         goto bad_area;
         }
-
         if (expand_stack(vma, address))
                 goto bad_area;
 
 good_area:
         code = SEGV_ACCERR;
+#if defined(CONFIG_6xx)
+        if (error_code & 0x95700000)
+                /* an error such as lwarx to I/O controller space,
+                   address matching DABR, eciwx, etc. */
+                goto bad_area;
+#endif /* CONFIG_6xx */
+#if defined(CONFIG_8xx)
+        /* The MPC8xx seems to always set 0x80000000, which is
+         * "undefined".  Of those that can be set, this is the only
+         * one which seems bad.
+         */
+        if (error_code & 0x10000000)
+                /* Guarded storage error. */
+                goto bad_area;
+#endif /* CONFIG_8xx */
 
         if (is_exec) {
+#ifdef CONFIG_PPC64
                 /* protection fault */
                 if (error_code & DSISR_PROTFAULT)
                         goto bad_area;
                 if (!(vma->vm_flags & VM_EXEC))
                         goto bad_area;
+#endif
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+                pte_t *ptep;
+
+                /* Since 4xx/Book-E supports per-page execute permission,
+                 * we lazily flush dcache to icache. */
+                ptep = NULL;
+                if (get_pteptr(mm, address, &ptep) && pte_present(*ptep)) {
+                        struct page *page = pte_page(*ptep);
+
+                        if (! test_bit(PG_arch_1, &page->flags)) {
+                                flush_dcache_icache_page(page);
+                                set_bit(PG_arch_1, &page->flags);
+                        }
+                        pte_update(ptep, 0, _PAGE_HWEXEC);
+                        _tlbie(address);
+                        pte_unmap(ptep);
+                        up_read(&mm->mmap_sem);
+                        return 0;
+                }
+                if (ptep != NULL)
+                        pte_unmap(ptep);
+#endif
         /* a write */
         } else if (is_write) {
                 if (!(vma->vm_flags & VM_WRITE))
                         goto bad_area;
         /* a read */
         } else {
-                if (!(vma->vm_flags & VM_READ))
+                /* protection fault */
+                if (error_code & 0x08000000)
+                        goto bad_area;
+                if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
                         goto bad_area;
         }
 
- survive:
         /*
          * If for any reason at all we couldn't handle the fault,
          * make sure we exit gracefully rather than endlessly redo
          * the fault.
          */
+ survive:
         switch (handle_mm_fault(mm, vma, address, is_write)) {
 
         case VM_FAULT_MINOR:
@@ -268,15 +332,11 @@ bad_area:
 bad_area_nosemaphore:
         /* User mode accesses cause a SIGSEGV */
         if (user_mode(regs)) {
-                info.si_signo = SIGSEGV;
-                info.si_errno = 0;
-                info.si_code = code;
-                info.si_addr = (void __user *) address;
-                force_sig_info(SIGSEGV, &info, current);
+                _exception(SIGSEGV, regs, code, address);
                 return 0;
         }
 
-        if (trap == 0x400 && (error_code & DSISR_PROTFAULT)
+        if (is_exec && (error_code & DSISR_PROTFAULT)
             && printk_ratelimit())
                 printk(KERN_CRIT "kernel tried to execute NX-protected"
                        " page (%lx) - exploit attempt? (uid: %d)\n",
@@ -315,8 +375,8 @@ do_sigbus:
 
 /*
  * bad_page_fault is called when we have a bad access from the kernel.
- * It is called from do_page_fault above and from some of the procedures
- * in traps.c.
+ * It is called from the DSI and ISI handlers in head.S and from some
+ * of the procedures in traps.c.
  */
 void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
 {
diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c
new file mode 100644
index 000000000000..af9ca0eb6d55
--- /dev/null
+++ b/arch/powerpc/mm/fsl_booke_mmu.c
@@ -0,0 +1,237 @@
+/*
+ * Modifications by Kumar Gala (kumar.gala@freescale.com) to support
+ * E500 Book E processors.
+ *
+ * Copyright 2004 Freescale Semiconductor, Inc
+ *
+ * This file contains the routines for initializing the MMU
+ * on the 4xx series of chips.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/stddef.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/highmem.h>
+
+#include <asm/pgalloc.h>
+#include <asm/prom.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
+#include <asm/smp.h>
+#include <asm/bootx.h>
+#include <asm/machdep.h>
+#include <asm/setup.h>
+
+extern void loadcam_entry(unsigned int index);
+unsigned int tlbcam_index;
+unsigned int num_tlbcam_entries;
+static unsigned long __cam0, __cam1, __cam2;
+extern unsigned long total_lowmem;
+extern unsigned long __max_low_memory;
+#define MAX_LOW_MEM     CONFIG_LOWMEM_SIZE
+
+#define NUM_TLBCAMS     (16)
+
+struct tlbcam {
+        u32     MAS0;
+        u32     MAS1;
+        u32     MAS2;
+        u32     MAS3;
+        u32     MAS7;
+} TLBCAM[NUM_TLBCAMS];
+
+struct tlbcamrange {
+        unsigned long start;
+        unsigned long limit;
+        phys_addr_t phys;
+} tlbcam_addrs[NUM_TLBCAMS];
+
+extern unsigned int tlbcam_index;
+
+/*
+ * Return PA for this VA if it is mapped by a CAM, or 0
+ */
+unsigned long v_mapped_by_tlbcam(unsigned long va)
+{
+        int b;
+        for (b = 0; b < tlbcam_index; ++b)
+                if (va >= tlbcam_addrs[b].start && va < tlbcam_addrs[b].limit)
+                        return tlbcam_addrs[b].phys + (va - tlbcam_addrs[b].start);
+        return 0;
+}
+
+/*
+ * Return VA for a given PA or 0 if not mapped
+ */
+unsigned long p_mapped_by_tlbcam(unsigned long pa)
+{
+        int b;
+        for (b = 0; b < tlbcam_index; ++b)
+                if (pa >= tlbcam_addrs[b].phys
+                    && pa < (tlbcam_addrs[b].limit-tlbcam_addrs[b].start)
+                              +tlbcam_addrs[b].phys)
+                        return tlbcam_addrs[b].start+(pa-tlbcam_addrs[b].phys);
+        return 0;
+}
+
+/*
+ * Set up one of the I/D BAT (block address translation) register pairs.
+ * The parameters are not checked; in particular size must be a power
+ * of 4 between 4k and 256M.
+ */
+void settlbcam(int index, unsigned long virt, phys_addr_t phys,
+                unsigned int size, int flags, unsigned int pid)
+{
+        unsigned int tsize, lz;
+
+        asm ("cntlzw %0,%1" : "=r" (lz) : "r" (size));
+        tsize = (21 - lz) / 2;
+
+#ifdef CONFIG_SMP
+        if ((flags & _PAGE_NO_CACHE) == 0)
+                flags |= _PAGE_COHERENT;
+#endif
+
+        TLBCAM[index].MAS0 = MAS0_TLBSEL(1) | MAS0_ESEL(index) | MAS0_NV(index+1);
+        TLBCAM[index].MAS1 = MAS1_VALID | MAS1_IPROT | MAS1_TSIZE(tsize) | MAS1_TID(pid);
+        TLBCAM[index].MAS2 = virt & PAGE_MASK;
+
+        TLBCAM[index].MAS2 |= (flags & _PAGE_WRITETHRU) ? MAS2_W : 0;
+        TLBCAM[index].MAS2 |= (flags & _PAGE_NO_CACHE) ? MAS2_I : 0;
+        TLBCAM[index].MAS2 |= (flags & _PAGE_COHERENT) ? MAS2_M : 0;
+        TLBCAM[index].MAS2 |= (flags & _PAGE_GUARDED) ? MAS2_G : 0;
+        TLBCAM[index].MAS2 |= (flags & _PAGE_ENDIAN) ? MAS2_E : 0;
+
+        TLBCAM[index].MAS3 = (phys & PAGE_MASK) | MAS3_SX | MAS3_SR;
+        TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_SW : 0);
+
+#ifndef CONFIG_KGDB /* want user access for breakpoints */
+        if (flags & _PAGE_USER) {
+           TLBCAM[index].MAS3 |= MAS3_UX | MAS3_UR;
+           TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_UW : 0);
+        }
+#else
+        TLBCAM[index].MAS3 |= MAS3_UX | MAS3_UR;
+        TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_UW : 0);
+#endif
+
+        tlbcam_addrs[index].start = virt;
+        tlbcam_addrs[index].limit = virt + size - 1;
+        tlbcam_addrs[index].phys = phys;
+
+        loadcam_entry(index);
+}
+
+void invalidate_tlbcam_entry(int index)
+{
+        TLBCAM[index].MAS0 = MAS0_TLBSEL(1) | MAS0_ESEL(index);
+        TLBCAM[index].MAS1 = ~MAS1_VALID;
+
+        loadcam_entry(index);
+}
+
+void __init cam_mapin_ram(unsigned long cam0, unsigned long cam1,
+                unsigned long cam2)
+{
+        settlbcam(0, KERNELBASE, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0);
+        tlbcam_index++;
+        if (cam1) {
+                tlbcam_index++;
+                settlbcam(1, KERNELBASE+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0);
+        }
+        if (cam2) {
+                tlbcam_index++;
+                settlbcam(2, KERNELBASE+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0);
+        }
+}
+
+/*
+ * MMU_init_hw does the chip-specific initialization of the MMU hardware.
+ */
+void __init MMU_init_hw(void)
+{
+        flush_instruction_cache();
+}
+
+unsigned long __init mmu_mapin_ram(void)
+{
+        cam_mapin_ram(__cam0, __cam1, __cam2);
+
+        return __cam0 + __cam1 + __cam2;
+}
+
+
+void __init
+adjust_total_lowmem(void)
+{
+        unsigned long max_low_mem = MAX_LOW_MEM;
+        unsigned long cam_max = 0x10000000;
+        unsigned long ram;
+
+        /* adjust CAM size to max_low_mem */
+        if (max_low_mem < cam_max)
+                cam_max = max_low_mem;
+
+        /* adjust lowmem size to max_low_mem */
+        if (max_low_mem < total_lowmem)
+                ram = max_low_mem;
+        else
+                ram = total_lowmem;
+
+        /* Calculate CAM values */
+        __cam0 = 1UL << 2 * (__ilog2(ram) / 2);
+        if (__cam0 > cam_max)
+                __cam0 = cam_max;
+        ram -= __cam0;
+        if (ram) {
+                __cam1 = 1UL << 2 * (__ilog2(ram) / 2);
+                if (__cam1 > cam_max)
+                        __cam1 = cam_max;
+                ram -= __cam1;
+        }
+        if (ram) {
+                __cam2 = 1UL << 2 * (__ilog2(ram) / 2);
+                if (__cam2 > cam_max)
+                        __cam2 = cam_max;
+                ram -= __cam2;
+        }
+
+        printk(KERN_INFO "Memory CAM mapping: CAM0=%ldMb, CAM1=%ldMb,"
+                        " CAM2=%ldMb residual: %ldMb\n",
+                        __cam0 >> 20, __cam1 >> 20, __cam2 >> 20,
+                        (total_lowmem - __cam0 - __cam1 - __cam2) >> 20);
+        __max_low_memory = max_low_mem = __cam0 + __cam1 + __cam2;
+}
diff --git a/arch/powerpc/mm/hash_low_32.S b/arch/powerpc/mm/hash_low_32.S
new file mode 100644
index 000000000000..12ccd7155bac
--- /dev/null
+++ b/arch/powerpc/mm/hash_low_32.S
@@ -0,0 +1,618 @@
+/*
+ *  arch/ppc/kernel/hashtable.S
+ *
+ *  $Id: hashtable.S,v 1.6 1999/10/08 01:56:15 paulus Exp $
+ *
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
+ *    Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
+ *  Adapted for Power Macintosh by Paul Mackerras.
+ *  Low-level exception handlers and MMU support
+ *  rewritten by Paul Mackerras.
+ *    Copyright (C) 1996 Paul Mackerras.
+ *
+ *  This file contains low-level assembler routines for managing
+ *  the PowerPC MMU hash table.  (PPC 8xx processors don't use a
+ *  hash table, so this file is not used on them.)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/reg.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/cputable.h>
+#include <asm/ppc_asm.h>
+#include <asm/thread_info.h>
+#include <asm/asm-offsets.h>
+
+#ifdef CONFIG_SMP
+        .comm   mmu_hash_lock,4
+#endif /* CONFIG_SMP */
+
+/*
+ * Sync CPUs with hash_page taking & releasing the hash
+ * table lock
+ */
+#ifdef CONFIG_SMP
+        .text
+_GLOBAL(hash_page_sync)
+        lis     r8,mmu_hash_lock@h
+        ori     r8,r8,mmu_hash_lock@l
+        lis     r0,0x0fff
+        b       10f
+11:     lwz     r6,0(r8)
+        cmpwi   0,r6,0
+        bne     11b
+10:     lwarx   r6,0,r8
+        cmpwi   0,r6,0
+        bne-    11b
+        stwcx.  r0,0,r8
+        bne-    10b
+        isync
+        eieio
+        li      r0,0
+        stw     r0,0(r8)
+        blr     
+#endif
+
+/*
+ * Load a PTE into the hash table, if possible.
+ * The address is in r4, and r3 contains an access flag:
+ * _PAGE_RW (0x400) if a write.
+ * r9 contains the SRR1 value, from which we use the MSR_PR bit.
+ * SPRG3 contains the physical address of the current task's thread.
+ *
+ * Returns to the caller if the access is illegal or there is no
+ * mapping for the address.  Otherwise it places an appropriate PTE
+ * in the hash table and returns from the exception.
+ * Uses r0, r3 - r8, ctr, lr.
+ */
+        .text
+_GLOBAL(hash_page)
+#ifdef CONFIG_PPC64BRIDGE
+        mfmsr   r0
+        clrldi  r0,r0,1         /* make sure it's in 32-bit mode */
+        MTMSRD(r0)
+        isync
+#endif
+        tophys(r7,0)                    /* gets -KERNELBASE into r7 */
+#ifdef CONFIG_SMP
+        addis   r8,r7,mmu_hash_lock@h
+        ori     r8,r8,mmu_hash_lock@l
+        lis     r0,0x0fff
+        b       10f
+11:     lwz     r6,0(r8)
+        cmpwi   0,r6,0
+        bne     11b
+10:     lwarx   r6,0,r8
+        cmpwi   0,r6,0
+        bne-    11b
+        stwcx.  r0,0,r8
+        bne-    10b
+        isync
+#endif
+        /* Get PTE (linux-style) and check access */
+        lis     r0,KERNELBASE@h         /* check if kernel address */
+        cmplw   0,r4,r0
+        mfspr   r8,SPRN_SPRG3           /* current task's THREAD (phys) */
+        ori     r3,r3,_PAGE_USER|_PAGE_PRESENT /* test low addresses as user */
+        lwz     r5,PGDIR(r8)            /* virt page-table root */
+        blt+    112f                    /* assume user more likely */
+        lis     r5,swapper_pg_dir@ha    /* if kernel address, use */
+        addi    r5,r5,swapper_pg_dir@l  /* kernel page table */
+        rlwimi  r3,r9,32-12,29,29       /* MSR_PR -> _PAGE_USER */
+112:    add     r5,r5,r7                /* convert to phys addr */
+        rlwimi  r5,r4,12,20,29          /* insert top 10 bits of address */
+        lwz     r8,0(r5)                /* get pmd entry */
+        rlwinm. r8,r8,0,0,19            /* extract address of pte page */
+#ifdef CONFIG_SMP
+        beq-    hash_page_out           /* return if no mapping */
+#else
+        /* XXX it seems like the 601 will give a machine fault on the
+           rfi if its alignment is wrong (bottom 4 bits of address are
+           8 or 0xc) and we have had a not-taken conditional branch
+           to the address following the rfi. */
+        beqlr-
+#endif
+        rlwimi  r8,r4,22,20,29          /* insert next 10 bits of address */
+        rlwinm  r0,r3,32-3,24,24        /* _PAGE_RW access -> _PAGE_DIRTY */
+        ori     r0,r0,_PAGE_ACCESSED|_PAGE_HASHPTE
+
+        /*
+         * Update the linux PTE atomically.  We do the lwarx up-front
+         * because almost always, there won't be a permission violation
+         * and there won't already be an HPTE, and thus we will have
+         * to update the PTE to set _PAGE_HASHPTE.  -- paulus.
+         */
+retry:
+        lwarx   r6,0,r8                 /* get linux-style pte */
+        andc.   r5,r3,r6                /* check access & ~permission */
+#ifdef CONFIG_SMP
+        bne-    hash_page_out           /* return if access not permitted */
+#else
+        bnelr-
+#endif
+        or      r5,r0,r6                /* set accessed/dirty bits */
+        stwcx.  r5,0,r8                 /* attempt to update PTE */
+        bne-    retry                   /* retry if someone got there first */
+
+        mfsrin  r3,r4                   /* get segment reg for segment */
+        mfctr   r0
+        stw     r0,_CTR(r11)
+        bl      create_hpte             /* add the hash table entry */
+
+#ifdef CONFIG_SMP
+        eieio
+        addis   r8,r7,mmu_hash_lock@ha
+        li      r0,0
+        stw     r0,mmu_hash_lock@l(r8)
+#endif
+
+        /* Return from the exception */
+        lwz     r5,_CTR(r11)
+        mtctr   r5
+        lwz     r0,GPR0(r11)
+        lwz     r7,GPR7(r11)
+        lwz     r8,GPR8(r11)
+        b       fast_exception_return
+
+#ifdef CONFIG_SMP
+hash_page_out:
+        eieio
+        addis   r8,r7,mmu_hash_lock@ha
+        li      r0,0
+        stw     r0,mmu_hash_lock@l(r8)
+        blr
+#endif /* CONFIG_SMP */
+
+/*
+ * Add an entry for a particular page to the hash table.
+ *
+ * add_hash_page(unsigned context, unsigned long va, unsigned long pmdval)
+ *
+ * We assume any necessary modifications to the pte (e.g. setting
+ * the accessed bit) have already been done and that there is actually
+ * a hash table in use (i.e. we're not on a 603).
+ */
+_GLOBAL(add_hash_page)
+        mflr    r0
+        stw     r0,4(r1)
+
+        /* Convert context and va to VSID */
+        mulli   r3,r3,897*16            /* multiply context by context skew */
+        rlwinm  r0,r4,4,28,31           /* get ESID (top 4 bits of va) */
+        mulli   r0,r0,0x111             /* multiply by ESID skew */
+        add     r3,r3,r0                /* note create_hpte trims to 24 bits */
+
+#ifdef CONFIG_SMP
+        rlwinm  r8,r1,0,0,18            /* use cpu number to make tag */
+        lwz     r8,TI_CPU(r8)           /* to go in mmu_hash_lock */
+        oris    r8,r8,12
+#endif /* CONFIG_SMP */
+
+        /*
+         * We disable interrupts here, even on UP, because we don't
+         * want to race with hash_page, and because we want the
+         * _PAGE_HASHPTE bit to be a reliable indication of whether
+         * the HPTE exists (or at least whether one did once).
+         * We also turn off the MMU for data accesses so that we
+         * we can't take a hash table miss (assuming the code is
+         * covered by a BAT).  -- paulus
+         */
+        mfmsr   r10
+        SYNC
+        rlwinm  r0,r10,0,17,15          /* clear bit 16 (MSR_EE) */
+        rlwinm  r0,r0,0,28,26           /* clear MSR_DR */
+        mtmsr   r0
+        SYNC_601
+        isync
+
+        tophys(r7,0)
+
+#ifdef CONFIG_SMP
+        addis   r9,r7,mmu_hash_lock@ha
+        addi    r9,r9,mmu_hash_lock@l
+10:     lwarx   r0,0,r9                 /* take the mmu_hash_lock */
+        cmpi    0,r0,0
+        bne-    11f
+        stwcx.  r8,0,r9
+        beq+    12f
+11:     lwz     r0,0(r9)
+        cmpi    0,r0,0
+        beq     10b
+        b       11b
+12:     isync
+#endif
+
+        /*
+         * Fetch the linux pte and test and set _PAGE_HASHPTE atomically.
+         * If _PAGE_HASHPTE was already set, we don't replace the existing
+         * HPTE, so we just unlock and return.
+         */
+        mr      r8,r5
+        rlwimi  r8,r4,22,20,29
+1:      lwarx   r6,0,r8
+        andi.   r0,r6,_PAGE_HASHPTE
+        bne     9f                      /* if HASHPTE already set, done */
+        ori     r5,r6,_PAGE_HASHPTE
+        stwcx.  r5,0,r8
+        bne-    1b
+
+        bl      create_hpte
+
+9:
+#ifdef CONFIG_SMP
+        eieio
+        li      r0,0
+        stw     r0,0(r9)                /* clear mmu_hash_lock */
+#endif
+
+        /* reenable interrupts and DR */
+        mtmsr   r10
+        SYNC_601
+        isync
+
+        lwz     r0,4(r1)
+        mtlr    r0
+        blr
+
+/*
+ * This routine adds a hardware PTE to the hash table.
+ * It is designed to be called with the MMU either on or off.
+ * r3 contains the VSID, r4 contains the virtual address,
+ * r5 contains the linux PTE, r6 contains the old value of the
+ * linux PTE (before setting _PAGE_HASHPTE) and r7 contains the
+ * offset to be added to addresses (0 if the MMU is on,
+ * -KERNELBASE if it is off).
+ * On SMP, the caller should have the mmu_hash_lock held.
+ * We assume that the caller has (or will) set the _PAGE_HASHPTE
+ * bit in the linux PTE in memory.  The value passed in r6 should
+ * be the old linux PTE value; if it doesn't have _PAGE_HASHPTE set
+ * this routine will skip the search for an existing HPTE.
+ * This procedure modifies r0, r3 - r6, r8, cr0.
+ *  -- paulus.
+ *
+ * For speed, 4 of the instructions get patched once the size and
+ * physical address of the hash table are known.  These definitions
+ * of Hash_base and Hash_bits below are just an example.
+ */
+Hash_base = 0xc0180000
+Hash_bits = 12                          /* e.g. 256kB hash table */
+Hash_msk = (((1 << Hash_bits) - 1) * 64)
+
+#ifndef CONFIG_PPC64BRIDGE
+/* defines for the PTE format for 32-bit PPCs */
+#define PTE_SIZE        8
+#define PTEG_SIZE       64
+#define LG_PTEG_SIZE    6
+#define LDPTEu          lwzu
+#define STPTE           stw
+#define CMPPTE          cmpw
+#define PTE_H           0x40
+#define PTE_V           0x80000000
+#define TST_V(r)        rlwinm. r,r,0,0,0
+#define SET_V(r)        oris r,r,PTE_V@h
+#define CLR_V(r,t)      rlwinm r,r,0,1,31
+
+#else
+/* defines for the PTE format for 64-bit PPCs */
+#define PTE_SIZE        16
+#define PTEG_SIZE       128
+#define LG_PTEG_SIZE    7
+#define LDPTEu          ldu
+#define STPTE           std
+#define CMPPTE          cmpd
+#define PTE_H           2
+#define PTE_V           1
+#define TST_V(r)        andi. r,r,PTE_V
+#define SET_V(r)        ori r,r,PTE_V
+#define CLR_V(r,t)      li t,PTE_V; andc r,r,t
+#endif /* CONFIG_PPC64BRIDGE */
+
+#define HASH_LEFT       31-(LG_PTEG_SIZE+Hash_bits-1)
+#define HASH_RIGHT      31-LG_PTEG_SIZE
+
+_GLOBAL(create_hpte)
+        /* Convert linux-style PTE (r5) to low word of PPC-style PTE (r8) */
+        rlwinm  r8,r5,32-10,31,31       /* _PAGE_RW -> PP lsb */
+        rlwinm  r0,r5,32-7,31,31        /* _PAGE_DIRTY -> PP lsb */
+        and     r8,r8,r0                /* writable if _RW & _DIRTY */
+        rlwimi  r5,r5,32-1,30,30        /* _PAGE_USER -> PP msb */
+        rlwimi  r5,r5,32-2,31,31        /* _PAGE_USER -> PP lsb */
+        ori     r8,r8,0xe14             /* clear out reserved bits and M */
+        andc    r8,r5,r8                /* PP = user? (rw&dirty? 2: 3): 0 */
+BEGIN_FTR_SECTION
+        ori     r8,r8,_PAGE_COHERENT    /* set M (coherence required) */
+END_FTR_SECTION_IFSET(CPU_FTR_NEED_COHERENT)
+
+        /* Construct the high word of the PPC-style PTE (r5) */
+#ifndef CONFIG_PPC64BRIDGE
+        rlwinm  r5,r3,7,1,24            /* put VSID in 0x7fffff80 bits */
+        rlwimi  r5,r4,10,26,31          /* put in API (abbrev page index) */
+#else /* CONFIG_PPC64BRIDGE */
+        clrlwi  r3,r3,8                 /* reduce vsid to 24 bits */
+        sldi    r5,r3,12                /* shift vsid into position */
+        rlwimi  r5,r4,16,20,24          /* put in API (abbrev page index) */
+#endif /* CONFIG_PPC64BRIDGE */
+        SET_V(r5)                       /* set V (valid) bit */
+
+        /* Get the address of the primary PTE group in the hash table (r3) */
+_GLOBAL(hash_page_patch_A)
+        addis   r0,r7,Hash_base@h       /* base address of hash table */
+        rlwimi  r0,r3,LG_PTEG_SIZE,HASH_LEFT,HASH_RIGHT    /* VSID -> hash */
+        rlwinm  r3,r4,20+LG_PTEG_SIZE,HASH_LEFT,HASH_RIGHT /* PI -> hash */
+        xor     r3,r3,r0                /* make primary hash */
+        li      r0,8                    /* PTEs/group */
+
+        /*
+         * Test the _PAGE_HASHPTE bit in the old linux PTE, and skip the search
+         * if it is clear, meaning that the HPTE isn't there already...
+         */
+        andi.   r6,r6,_PAGE_HASHPTE
+        beq+    10f                     /* no PTE: go look for an empty slot */
+        tlbie   r4
+
+        addis   r4,r7,htab_hash_searches@ha
+        lwz     r6,htab_hash_searches@l(r4)
+        addi    r6,r6,1                 /* count how many searches we do */
+        stw     r6,htab_hash_searches@l(r4)
+
+        /* Search the primary PTEG for a PTE whose 1st (d)word matches r5 */
+        mtctr   r0
+        addi    r4,r3,-PTE_SIZE
+1:      LDPTEu  r6,PTE_SIZE(r4)         /* get next PTE */
+        CMPPTE  0,r6,r5
+        bdnzf   2,1b                    /* loop while ctr != 0 && !cr0.eq */
+        beq+    found_slot
+
+        /* Search the secondary PTEG for a matching PTE */
+        ori     r5,r5,PTE_H             /* set H (secondary hash) bit */
+_GLOBAL(hash_page_patch_B)
+        xoris   r4,r3,Hash_msk>>16      /* compute secondary hash */
+        xori    r4,r4,(-PTEG_SIZE & 0xffff)
+        addi    r4,r4,-PTE_SIZE
+        mtctr   r0
+2:      LDPTEu  r6,PTE_SIZE(r4)
+        CMPPTE  0,r6,r5
+        bdnzf   2,2b
+        beq+    found_slot
+        xori    r5,r5,PTE_H             /* clear H bit again */
+
+        /* Search the primary PTEG for an empty slot */
+10:     mtctr   r0
+        addi    r4,r3,-PTE_SIZE         /* search primary PTEG */
+1:      LDPTEu  r6,PTE_SIZE(r4)         /* get next PTE */
+        TST_V(r6)                       /* test valid bit */
+        bdnzf   2,1b                    /* loop while ctr != 0 && !cr0.eq */
+        beq+    found_empty
+
+        /* update counter of times that the primary PTEG is full */
+        addis   r4,r7,primary_pteg_full@ha
+        lwz     r6,primary_pteg_full@l(r4)
+        addi    r6,r6,1
+        stw     r6,primary_pteg_full@l(r4)
+
+        /* Search the secondary PTEG for an empty slot */
+        ori     r5,r5,PTE_H             /* set H (secondary hash) bit */
+_GLOBAL(hash_page_patch_C)
+        xoris   r4,r3,Hash_msk>>16      /* compute secondary hash */
+        xori    r4,r4,(-PTEG_SIZE & 0xffff)
+        addi    r4,r4,-PTE_SIZE
+        mtctr   r0
+2:      LDPTEu  r6,PTE_SIZE(r4)
+        TST_V(r6)
+        bdnzf   2,2b
+        beq+    found_empty
+        xori    r5,r5,PTE_H             /* clear H bit again */
+
+        /*
+         * Choose an arbitrary slot in the primary PTEG to overwrite.
+         * Since both the primary and secondary PTEGs are full, and we
+         * have no information that the PTEs in the primary PTEG are
+         * more important or useful than those in the secondary PTEG,
+         * and we know there is a definite (although small) speed
+         * advantage to putting the PTE in the primary PTEG, we always
+         * put the PTE in the primary PTEG.
+         */
+        addis   r4,r7,next_slot@ha
+        lwz     r6,next_slot@l(r4)
+        addi    r6,r6,PTE_SIZE
+        andi.   r6,r6,7*PTE_SIZE
+        stw     r6,next_slot@l(r4)
+        add     r4,r3,r6
+
+#ifndef CONFIG_SMP
+        /* Store PTE in PTEG */
+found_empty:
+        STPTE   r5,0(r4)
+found_slot:
+        STPTE   r8,PTE_SIZE/2(r4)
+
+#else /* CONFIG_SMP */
+/*
+ * Between the tlbie above and updating the hash table entry below,
+ * another CPU could read the hash table entry and put it in its TLB.
+ * There are 3 cases:
+ * 1. using an empty slot
+ * 2. updating an earlier entry to change permissions (i.e. enable write)
+ * 3. taking over the PTE for an unrelated address
+ *
+ * In each case it doesn't really matter if the other CPUs have the old
+ * PTE in their TLB.  So we don't need to bother with another tlbie here,
+ * which is convenient as we've overwritten the register that had the
+ * address. :-)  The tlbie above is mainly to make sure that this CPU comes
+ * and gets the new PTE from the hash table.
+ *
+ * We do however have to make sure that the PTE is never in an invalid
+ * state with the V bit set.
+ */
+found_empty:
+found_slot:
+        CLR_V(r5,r0)            /* clear V (valid) bit in PTE */
+        STPTE   r5,0(r4)
+        sync
+        TLBSYNC
+        STPTE   r8,PTE_SIZE/2(r4) /* put in correct RPN, WIMG, PP bits */
+        sync
+        SET_V(r5)
+        STPTE   r5,0(r4)        /* finally set V bit in PTE */
+#endif /* CONFIG_SMP */
+
+        sync            /* make sure pte updates get to memory */
+        blr
+
+        .comm   next_slot,4
+        .comm   primary_pteg_full,4
+        .comm   htab_hash_searches,4
+
+/*
+ * Flush the entry for a particular page from the hash table.
+ *
+ * flush_hash_pages(unsigned context, unsigned long va, unsigned long pmdval,
+ *                  int count)
+ *
+ * We assume that there is a hash table in use (Hash != 0).
+ */
+_GLOBAL(flush_hash_pages)
+        tophys(r7,0)
+
+        /*
+         * We disable interrupts here, even on UP, because we want
+         * the _PAGE_HASHPTE bit to be a reliable indication of
+         * whether the HPTE exists (or at least whether one did once).
+         * We also turn off the MMU for data accesses so that we
+         * we can't take a hash table miss (assuming the code is
+         * covered by a BAT).  -- paulus
+         */
+        mfmsr   r10
+        SYNC
+        rlwinm  r0,r10,0,17,15          /* clear bit 16 (MSR_EE) */
+        rlwinm  r0,r0,0,28,26           /* clear MSR_DR */
+        mtmsr   r0
+        SYNC_601
+        isync
+
+        /* First find a PTE in the range that has _PAGE_HASHPTE set */
+        rlwimi  r5,r4,22,20,29
+1:      lwz     r0,0(r5)
+        cmpwi   cr1,r6,1
+        andi.   r0,r0,_PAGE_HASHPTE
+        bne     2f
+        ble     cr1,19f
+        addi    r4,r4,0x1000
+        addi    r5,r5,4
+        addi    r6,r6,-1
+        b       1b
+
+        /* Convert context and va to VSID */
+2:      mulli   r3,r3,897*16            /* multiply context by context skew */
+        rlwinm  r0,r4,4,28,31           /* get ESID (top 4 bits of va) */
+        mulli   r0,r0,0x111             /* multiply by ESID skew */
+        add     r3,r3,r0                /* note code below trims to 24 bits */
+
+        /* Construct the high word of the PPC-style PTE (r11) */
+#ifndef CONFIG_PPC64BRIDGE
+        rlwinm  r11,r3,7,1,24           /* put VSID in 0x7fffff80 bits */
+        rlwimi  r11,r4,10,26,31         /* put in API (abbrev page index) */
+#else /* CONFIG_PPC64BRIDGE */
+        clrlwi  r3,r3,8                 /* reduce vsid to 24 bits */
+        sldi    r11,r3,12               /* shift vsid into position */
+        rlwimi  r11,r4,16,20,24         /* put in API (abbrev page index) */
+#endif /* CONFIG_PPC64BRIDGE */
+        SET_V(r11)                      /* set V (valid) bit */
+
+#ifdef CONFIG_SMP
+        addis   r9,r7,mmu_hash_lock@ha
+        addi    r9,r9,mmu_hash_lock@l
+        rlwinm  r8,r1,0,0,18
+        add     r8,r8,r7
+        lwz     r8,TI_CPU(r8)
+        oris    r8,r8,9
+10:     lwarx   r0,0,r9
+        cmpi    0,r0,0
+        bne-    11f
+        stwcx.  r8,0,r9
+        beq+    12f
+11:     lwz     r0,0(r9)
+        cmpi    0,r0,0
+        beq     10b
+        b       11b
+12:     isync
+#endif
+
+        /*
+         * Check the _PAGE_HASHPTE bit in the linux PTE.  If it is
+         * already clear, we're done (for this pte).  If not,
+         * clear it (atomically) and proceed.  -- paulus.
+         */
+33:     lwarx   r8,0,r5                 /* fetch the pte */
+        andi.   r0,r8,_PAGE_HASHPTE
+        beq     8f                      /* done if HASHPTE is already clear */
+        rlwinm  r8,r8,0,31,29           /* clear HASHPTE bit */
+        stwcx.  r8,0,r5                 /* update the pte */
+        bne-    33b
+
+        /* Get the address of the primary PTE group in the hash table (r3) */
+_GLOBAL(flush_hash_patch_A)
+        addis   r8,r7,Hash_base@h       /* base address of hash table */
+        rlwimi  r8,r3,LG_PTEG_SIZE,HASH_LEFT,HASH_RIGHT    /* VSID -> hash */
+        rlwinm  r0,r4,20+LG_PTEG_SIZE,HASH_LEFT,HASH_RIGHT /* PI -> hash */
+        xor     r8,r0,r8                /* make primary hash */
+
+        /* Search the primary PTEG for a PTE whose 1st (d)word matches r5 */
+        li      r0,8                    /* PTEs/group */
+        mtctr   r0
+        addi    r12,r8,-PTE_SIZE
+1:      LDPTEu  r0,PTE_SIZE(r12)        /* get next PTE */
+        CMPPTE  0,r0,r11
+        bdnzf   2,1b                    /* loop while ctr != 0 && !cr0.eq */
+        beq+    3f
+
+        /* Search the secondary PTEG for a matching PTE */
+        ori     r11,r11,PTE_H           /* set H (secondary hash) bit */
+        li      r0,8                    /* PTEs/group */
+_GLOBAL(flush_hash_patch_B)
+        xoris   r12,r8,Hash_msk>>16     /* compute secondary hash */
+        xori    r12,r12,(-PTEG_SIZE & 0xffff)
+        addi    r12,r12,-PTE_SIZE
+        mtctr   r0
+2:      LDPTEu  r0,PTE_SIZE(r12)
+        CMPPTE  0,r0,r11
+        bdnzf   2,2b
+        xori    r11,r11,PTE_H           /* clear H again */
+        bne-    4f                      /* should rarely fail to find it */
+
+3:      li      r0,0
+        STPTE   r0,0(r12)               /* invalidate entry */
+4:      sync
+        tlbie   r4                      /* in hw tlb too */
+        sync
+
+8:      ble     cr1,9f                  /* if all ptes checked */
+81:     addi    r6,r6,-1
+        addi    r5,r5,4                 /* advance to next pte */
+        addi    r4,r4,0x1000
+        lwz     r0,0(r5)                /* check next pte */
+        cmpwi   cr1,r6,1
+        andi.   r0,r0,_PAGE_HASHPTE
+        bne     33b
+        bgt     cr1,81b
+
+9:
+#ifdef CONFIG_SMP
+        TLBSYNC
+        li      r0,0
+        stw     r0,0(r9)                /* clear mmu_hash_lock */
+#endif
+
+19:     mtmsr   r10
+        SYNC_601
+        isync
+        blr
diff --git a/arch/ppc64/mm/hash_low.S b/arch/powerpc/mm/hash_low_64.S
index ee5a5d36bfa8..d6ed9102eeea 100644
--- a/arch/ppc64/mm/hash_low.S
+++ b/arch/powerpc/mm/hash_low_64.S
@@ -10,7 +10,7 @@
  * described in the kernel's COPYING file.
  */
 
-#include <asm/processor.h>
+#include <asm/reg.h>
 #include <asm/pgtable.h>
 #include <asm/mmu.h>
 #include <asm/page.h>
diff --git a/arch/ppc64/mm/hash_native.c b/arch/powerpc/mm/hash_native_64.c
index bfd385b7713c..174d14576c28 100644
--- a/arch/ppc64/mm/hash_native.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -335,10 +335,9 @@ static void native_hpte_clear(void)
         local_irq_restore(flags);
 }
 
-static void native_flush_hash_range(unsigned long context,
-                                    unsigned long number, int local)
+static void native_flush_hash_range(unsigned long number, int local)
 {
-        unsigned long vsid, vpn, va, hash, secondary, slot, flags, avpn;
+        unsigned long va, vpn, hash, secondary, slot, flags, avpn;
         int i, j;
         hpte_t *hptep;
         unsigned long hpte_v;
@@ -349,13 +348,7 @@ static void native_flush_hash_range(unsigned long context,
 
         j = 0;
         for (i = 0; i < number; i++) {
-                if (batch->addr[i] < KERNELBASE)
-                        vsid = get_vsid(context, batch->addr[i]);
-                else
-                        vsid = get_kernel_vsid(batch->addr[i]);
-
-                va = (vsid << 28) | (batch->addr[i] & 0x0fffffff);
-                batch->vaddr[j] = va;
+                va = batch->vaddr[j];
                 if (large)
                         vpn = va >> HPAGE_SHIFT;
                 else
diff --git a/arch/ppc64/mm/hash_utils.c b/arch/powerpc/mm/hash_utils_64.c
index 09475c8edf7c..6e9e05cce02c 100644
--- a/arch/ppc64/mm/hash_utils.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -78,7 +78,7 @@ extern unsigned long dart_tablebase;
 hpte_t *htab_address;
 unsigned long htab_hash_mask;
 
-extern unsigned long _SDR1;
+unsigned long _SDR1;
 
 #define KB (1024)
 #define MB (1024*KB)
@@ -90,7 +90,6 @@ static inline void loop_forever(void)
                 ;
 }
 
-#ifdef CONFIG_PPC_MULTIPLATFORM
 static inline void create_pte_mapping(unsigned long start, unsigned long end,
                                       unsigned long mode, int large)
 {
@@ -111,7 +110,7 @@ static inline void create_pte_mapping(unsigned long start, unsigned long end,
                 unsigned long vpn, hash, hpteg;
                 unsigned long vsid = get_kernel_vsid(addr);
                 unsigned long va = (vsid << 28) | (addr & 0xfffffff);
-                int ret;
+                int ret = -1;
 
                 if (large)
                         vpn = va >> HPAGE_SHIFT;
@@ -129,16 +128,25 @@ static inline void create_pte_mapping(unsigned long start, unsigned long end,
 
                 hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
 
+#ifdef CONFIG_PPC_ISERIES
+                if (systemcfg->platform & PLATFORM_ISERIES_LPAR)
+                        ret = iSeries_hpte_bolt_or_insert(hpteg, va,
+                                virt_to_abs(addr) >> PAGE_SHIFT,
+                                vflags, tmp_mode);
+                else
+#endif
 #ifdef CONFIG_PPC_PSERIES
                 if (systemcfg->platform & PLATFORM_LPAR)
                         ret = pSeries_lpar_hpte_insert(hpteg, va,
                                 virt_to_abs(addr) >> PAGE_SHIFT,
                                 vflags, tmp_mode);
                 else
-#endif /* CONFIG_PPC_PSERIES */
+#endif
+#ifdef CONFIG_PPC_MULTIPLATFORM
                         ret = native_hpte_insert(hpteg, va,
                                 virt_to_abs(addr) >> PAGE_SHIFT,
                                 vflags, tmp_mode);
+#endif
 
                 if (ret == -1) {
                         ppc64_terminate_msg(0x20, "create_pte_mapping");
@@ -147,6 +155,27 @@ static inline void create_pte_mapping(unsigned long start, unsigned long end,
         }
 }
 
+static unsigned long get_hashtable_size(void)
+{
+        unsigned long rnd_mem_size, pteg_count;
+
+        /* If hash size wasn't obtained in prom.c, we calculate it now based on
+         * the total RAM size
+         */
+        if (ppc64_pft_size)
+                return 1UL << ppc64_pft_size;
+
+        /* round mem_size up to next power of 2 */
+        rnd_mem_size = 1UL << __ilog2(systemcfg->physicalMemorySize);
+        if (rnd_mem_size < systemcfg->physicalMemorySize)
+                rnd_mem_size <<= 1;
+
+        /* # pages / 2 */
+        pteg_count = max(rnd_mem_size >> (12 + 1), 1UL << 11);
+
+        return pteg_count << 7;
+}
+
 void __init htab_initialize(void)
 {
         unsigned long table, htab_size_bytes;
@@ -162,7 +191,7 @@ void __init htab_initialize(void)
          * Calculate the required size of the htab.  We want the number of
          * PTEGs to equal one half the number of real pages.
          */ 
-        htab_size_bytes = 1UL << ppc64_pft_size;
+        htab_size_bytes = get_hashtable_size();
         pteg_count = htab_size_bytes >> 7;
 
         /* For debug, make the HTAB 1/8 as big as it normally would be. */
@@ -261,7 +290,6 @@ void __init htab_initialize(void)
 }
 #undef KB
 #undef MB
-#endif /* CONFIG_PPC_MULTIPLATFORM */
 
 /*
  * Called by asm hashtable.S for doing lazy icache flush
@@ -355,18 +383,11 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
         return ret;
 }
 
-void flush_hash_page(unsigned long context, unsigned long ea, pte_t pte,
-                     int local)
+void flush_hash_page(unsigned long va, pte_t pte, int local)
 {
-        unsigned long vsid, vpn, va, hash, secondary, slot;
+        unsigned long vpn, hash, secondary, slot;
         unsigned long huge = pte_huge(pte);
 
-        if (ea < KERNELBASE)
-                vsid = get_vsid(context, ea);
-        else
-                vsid = get_kernel_vsid(ea);
-
-        va = (vsid << 28) | (ea & 0x0fffffff);
         if (huge)
                 vpn = va >> HPAGE_SHIFT;
         else
@@ -381,17 +402,17 @@ void flush_hash_page(unsigned long context, unsigned long ea, pte_t pte,
         ppc_md.hpte_invalidate(slot, va, huge, local);
 }
 
-void flush_hash_range(unsigned long context, unsigned long number, int local)
+void flush_hash_range(unsigned long number, int local)
 {
         if (ppc_md.flush_hash_range) {
-                ppc_md.flush_hash_range(context, number, local);
+                ppc_md.flush_hash_range(number, local);
         } else {
                 int i;
-                struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
+                struct ppc64_tlb_batch *batch =
+                        &__get_cpu_var(ppc64_tlb_batch);
 
                 for (i = 0; i < number; i++)
-                        flush_hash_page(context, batch->addr[i], batch->pte[i],
-                                        local);
+                        flush_hash_page(batch->vaddr[i], batch->pte[i], local);
         }
 }
 
diff --git a/arch/ppc64/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 0ea0994ed974..0ea0994ed974 100644
--- a/arch/ppc64/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
diff --git a/arch/ppc64/mm/imalloc.c b/arch/powerpc/mm/imalloc.c
index f4ca29cf5364..f4ca29cf5364 100644
--- a/arch/ppc64/mm/imalloc.c
+++ b/arch/powerpc/mm/imalloc.c
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
new file mode 100644
index 000000000000..4612a79dfb6e
--- /dev/null
+++ b/arch/powerpc/mm/init_32.c
@@ -0,0 +1,254 @@
+/*
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *  PPC44x/36-bit changes by Matt Porter (mporter@mvista.com)
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/highmem.h>
+#include <linux/initrd.h>
+#include <linux/pagemap.h>
+
+#include <asm/pgalloc.h>
+#include <asm/prom.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/smp.h>
+#include <asm/machdep.h>
+#include <asm/btext.h>
+#include <asm/tlb.h>
+#include <asm/prom.h>
+#include <asm/lmb.h>
+#include <asm/sections.h>
+
+#include "mmu_decl.h"
+
+#if defined(CONFIG_KERNEL_START_BOOL) || defined(CONFIG_LOWMEM_SIZE_BOOL)
+/* The ammount of lowmem must be within 0xF0000000 - KERNELBASE. */
+#if (CONFIG_LOWMEM_SIZE > (0xF0000000 - KERNELBASE))
+#error "You must adjust CONFIG_LOWMEM_SIZE or CONFIG_START_KERNEL"
+#endif
+#endif
+#define MAX_LOW_MEM     CONFIG_LOWMEM_SIZE
+
+DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
+
+unsigned long total_memory;
+unsigned long total_lowmem;
+
+unsigned long ppc_memstart;
+unsigned long ppc_memoffset = PAGE_OFFSET;
+
+int boot_mapsize;
+#ifdef CONFIG_PPC_PMAC
+unsigned long agp_special_page;
+EXPORT_SYMBOL(agp_special_page);
+#endif
+
+#ifdef CONFIG_HIGHMEM
+pte_t *kmap_pte;
+pgprot_t kmap_prot;
+
+EXPORT_SYMBOL(kmap_prot);
+EXPORT_SYMBOL(kmap_pte);
+#endif
+
+void MMU_init(void);
+
+/* XXX should be in current.h  -- paulus */
+extern struct task_struct *current_set[NR_CPUS];
+
+char *klimit = _end;
+struct device_node *memory_node;
+
+extern int init_bootmem_done;
+
+/*
+ * this tells the system to map all of ram with the segregs
+ * (i.e. page tables) instead of the bats.
+ * -- Cort
+ */
+int __map_without_bats;
+int __map_without_ltlbs;
+
+/* max amount of low RAM to map in */
+unsigned long __max_low_memory = MAX_LOW_MEM;
+
+/*
+ * limit of what is accessible with initial MMU setup -
+ * 256MB usually, but only 16MB on 601.
+ */
+unsigned long __initial_memory_limit = 0x10000000;
+
+/*
+ * Check for command-line options that affect what MMU_init will do.
+ */
+void MMU_setup(void)
+{
+        /* Check for nobats option (used in mapin_ram). */
+        if (strstr(cmd_line, "nobats")) {
+                __map_without_bats = 1;
+        }
+
+        if (strstr(cmd_line, "noltlbs")) {
+                __map_without_ltlbs = 1;
+        }
+}
+
+/*
+ * MMU_init sets up the basic memory mappings for the kernel,
+ * including both RAM and possibly some I/O regions,
+ * and sets up the page tables and the MMU hardware ready to go.
+ */
+void __init MMU_init(void)
+{
+        if (ppc_md.progress)
+                ppc_md.progress("MMU:enter", 0x111);
+
+        /* 601 can only access 16MB at the moment */
+        if (PVR_VER(mfspr(SPRN_PVR)) == 1)
+                __initial_memory_limit = 0x01000000;
+
+        /* parse args from command line */
+        MMU_setup();
+
+        if (lmb.memory.cnt > 1) {
+                lmb.memory.cnt = 1;
+                lmb_analyze();
+                printk(KERN_WARNING "Only using first contiguous memory region");
+        }
+
+        total_memory = lmb_end_of_DRAM();
+        total_lowmem = total_memory;
+
+#ifdef CONFIG_FSL_BOOKE
+        /* Freescale Book-E parts expect lowmem to be mapped by fixed TLB
+         * entries, so we need to adjust lowmem to match the amount we can map
+         * in the fixed entries */
+        adjust_total_lowmem();
+#endif /* CONFIG_FSL_BOOKE */
+
+        if (total_lowmem > __max_low_memory) {
+                total_lowmem = __max_low_memory;
+#ifndef CONFIG_HIGHMEM
+                total_memory = total_lowmem;
+                lmb_enforce_memory_limit(total_lowmem);
+                lmb_analyze();
+#endif /* CONFIG_HIGHMEM */
+        }
+
+        /* Initialize the MMU hardware */
+        if (ppc_md.progress)
+                ppc_md.progress("MMU:hw init", 0x300);
+        MMU_init_hw();
+
+        /* Map in all of RAM starting at KERNELBASE */
+        if (ppc_md.progress)
+                ppc_md.progress("MMU:mapin", 0x301);
+        mapin_ram();
+
+#ifdef CONFIG_HIGHMEM
+        ioremap_base = PKMAP_BASE;
+#else
+        ioremap_base = 0xfe000000UL;    /* for now, could be 0xfffff000 */
+#endif /* CONFIG_HIGHMEM */
+        ioremap_bot = ioremap_base;
+
+        /* Map in I/O resources */
+        if (ppc_md.progress)
+                ppc_md.progress("MMU:setio", 0x302);
+        if (ppc_md.setup_io_mappings)
+                ppc_md.setup_io_mappings();
+
+        /* Initialize the context management stuff */
+        mmu_context_init();
+
+        if (ppc_md.progress)
+                ppc_md.progress("MMU:exit", 0x211);
+}
+
+/* This is only called until mem_init is done. */
+void __init *early_get_page(void)
+{
+        void *p;
+
+        if (init_bootmem_done) {
+                p = alloc_bootmem_pages(PAGE_SIZE);
+        } else {
+                p = __va(lmb_alloc_base(PAGE_SIZE, PAGE_SIZE,
+                                        __initial_memory_limit));
+        }
+        return p;
+}
+
+/* Free up now-unused memory */
+static void free_sec(unsigned long start, unsigned long end, const char *name)
+{
+        unsigned long cnt = 0;
+
+        while (start < end) {
+                ClearPageReserved(virt_to_page(start));
+                set_page_count(virt_to_page(start), 1);
+                free_page(start);
+                cnt++;
+                start += PAGE_SIZE;
+        }
+        if (cnt) {
+                printk(" %ldk %s", cnt << (PAGE_SHIFT - 10), name);
+                totalram_pages += cnt;
+        }
+}
+
+void free_initmem(void)
+{
+#define FREESEC(TYPE) \
+        free_sec((unsigned long)(&__ ## TYPE ## _begin), \
+                 (unsigned long)(&__ ## TYPE ## _end), \
+                 #TYPE);
+
+        printk ("Freeing unused kernel memory:");
+        FREESEC(init);
+        printk("\n");
+        ppc_md.progress = NULL;
+#undef FREESEC
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+        if (start < end)
+                printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+        for (; start < end; start += PAGE_SIZE) {
+                ClearPageReserved(virt_to_page(start));
+                set_page_count(virt_to_page(start), 1);
+                free_page(start);
+                totalram_pages++;
+        }
+}
+#endif
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
new file mode 100644
index 000000000000..b0fc822ec29f
--- /dev/null
+++ b/arch/powerpc/mm/init_64.c
@@ -0,0 +1,223 @@
+/*
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  Dave Engebretsen <engebret@us.ibm.com>
+ *      Rework for PPC64 port.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/stddef.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/bootmem.h>
+#include <linux/highmem.h>
+#include <linux/idr.h>
+#include <linux/nodemask.h>
+#include <linux/module.h>
+
+#include <asm/pgalloc.h>
+#include <asm/page.h>
+#include <asm/prom.h>
+#include <asm/lmb.h>
+#include <asm/rtas.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
+#include <asm/smp.h>
+#include <asm/machdep.h>
+#include <asm/tlb.h>
+#include <asm/eeh.h>
+#include <asm/processor.h>
+#include <asm/mmzone.h>
+#include <asm/cputable.h>
+#include <asm/ppcdebug.h>
+#include <asm/sections.h>
+#include <asm/system.h>
+#include <asm/iommu.h>
+#include <asm/abs_addr.h>
+#include <asm/vdso.h>
+#include <asm/imalloc.h>
+
+#if PGTABLE_RANGE > USER_VSID_RANGE
+#warning Limited user VSID range means pagetable space is wasted
+#endif
+
+#if (TASK_SIZE_USER64 < PGTABLE_RANGE) && (TASK_SIZE_USER64 < USER_VSID_RANGE)
+#warning TASK_SIZE is smaller than it needs to be.
+#endif
+
+unsigned long klimit = (unsigned long)_end;
+
+/* max amount of RAM to use */
+unsigned long __max_memory;
+
+/* info on what we think the IO hole is */
+unsigned long   io_hole_start;
+unsigned long   io_hole_size;
+
+/*
+ * Do very early mm setup.
+ */
+void __init mm_init_ppc64(void)
+{
+#ifndef CONFIG_PPC_ISERIES
+        unsigned long i;
+#endif
+
+        ppc64_boot_msg(0x100, "MM Init");
+
+        /* This is the story of the IO hole... please, keep seated,
+         * unfortunately, we are out of oxygen masks at the moment.
+         * So we need some rough way to tell where your big IO hole
+         * is. On pmac, it's between 2G and 4G, on POWER3, it's around
+         * that area as well, on POWER4 we don't have one, etc...
+         * We need that as a "hint" when sizing the TCE table on POWER3
+         * So far, the simplest way that seem work well enough for us it
+         * to just assume that the first discontinuity in our physical
+         * RAM layout is the IO hole. That may not be correct in the future
+         * (and isn't on iSeries but then we don't care ;)
+         */
+
+#ifndef CONFIG_PPC_ISERIES
+        for (i = 1; i < lmb.memory.cnt; i++) {
+                unsigned long base, prevbase, prevsize;
+
+                prevbase = lmb.memory.region[i-1].base;
+                prevsize = lmb.memory.region[i-1].size;
+                base = lmb.memory.region[i].base;
+                if (base > (prevbase + prevsize)) {
+                        io_hole_start = prevbase + prevsize;
+                        io_hole_size = base  - (prevbase + prevsize);
+                        break;
+                }
+        }
+#endif /* CONFIG_PPC_ISERIES */
+        if (io_hole_start)
+                printk("IO Hole assumed to be %lx -> %lx\n",
+                       io_hole_start, io_hole_start + io_hole_size - 1);
+
+        ppc64_boot_msg(0x100, "MM Init Done");
+}
+
+void free_initmem(void)
+{
+        unsigned long addr;
+
+        addr = (unsigned long)__init_begin;
+        for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
+                memset((void *)addr, 0xcc, PAGE_SIZE);
+                ClearPageReserved(virt_to_page(addr));
+                set_page_count(virt_to_page(addr), 1);
+                free_page(addr);
+                totalram_pages++;
+        }
+        printk ("Freeing unused kernel memory: %luk freed\n",
+                ((unsigned long)__init_end - (unsigned long)__init_begin) >> 10);
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+        if (start < end)
+                printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+        for (; start < end; start += PAGE_SIZE) {
+                ClearPageReserved(virt_to_page(start));
+                set_page_count(virt_to_page(start), 1);
+                free_page(start);
+                totalram_pages++;
+        }
+}
+#endif
+
+static struct kcore_list kcore_vmem;
+
+static int __init setup_kcore(void)
+{
+        int i;
+
+        for (i=0; i < lmb.memory.cnt; i++) {
+                unsigned long base, size;
+                struct kcore_list *kcore_mem;
+
+                base = lmb.memory.region[i].base;
+                size = lmb.memory.region[i].size;
+
+                /* GFP_ATOMIC to avoid might_sleep warnings during boot */
+                kcore_mem = kmalloc(sizeof(struct kcore_list), GFP_ATOMIC);
+                if (!kcore_mem)
+                        panic("mem_init: kmalloc failed\n");
+
+                kclist_add(kcore_mem, __va(base), size);
+        }
+
+        kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
+
+        return 0;
+}
+module_init(setup_kcore);
+
+static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
+{
+        memset(addr, 0, kmem_cache_size(cache));
+}
+
+static const int pgtable_cache_size[2] = {
+        PTE_TABLE_SIZE, PMD_TABLE_SIZE
+};
+static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
+        "pgd_pte_cache", "pud_pmd_cache",
+};
+
+kmem_cache_t *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
+
+void pgtable_cache_init(void)
+{
+        int i;
+
+        BUILD_BUG_ON(PTE_TABLE_SIZE != pgtable_cache_size[PTE_CACHE_NUM]);
+        BUILD_BUG_ON(PMD_TABLE_SIZE != pgtable_cache_size[PMD_CACHE_NUM]);
+        BUILD_BUG_ON(PUD_TABLE_SIZE != pgtable_cache_size[PUD_CACHE_NUM]);
+        BUILD_BUG_ON(PGD_TABLE_SIZE != pgtable_cache_size[PGD_CACHE_NUM]);
+
+        for (i = 0; i < ARRAY_SIZE(pgtable_cache_size); i++) {
+                int size = pgtable_cache_size[i];
+                const char *name = pgtable_cache_name[i];
+
+                pgtable_cache[i] = kmem_cache_create(name,
+                                                     size, size,
+                                                     SLAB_HWCACHE_ALIGN
+                                                     | SLAB_MUST_HWCACHE_ALIGN,
+                                                     zero_ctor,
+                                                     NULL);
+                if (! pgtable_cache[i])
+                        panic("pgtable_cache_init(): could not create %s!\n",
+                              name);
+        }
+}
diff --git a/arch/ppc64/kernel/lmb.c b/arch/powerpc/mm/lmb.c
index 5adaca2ddc9d..9b5aa6808eb8 100644
--- a/arch/ppc64/kernel/lmb.c
+++ b/arch/powerpc/mm/lmb.c
@@ -1,5 +1,5 @@
 /*
- * Procedures for interfacing to Open Firmware.
+ * Procedures for maintaining information about logical memory blocks.
  *
  * Peter Bergner, IBM Corp.     June 2001.
  * Copyright (C) 2001 Peter Bergner.
@@ -18,7 +18,9 @@
 #include <asm/page.h>
 #include <asm/prom.h>
 #include <asm/lmb.h>
-#include <asm/abs_addr.h>
+#ifdef CONFIG_PPC32
+#include "mmu_decl.h"           /* for __max_low_memory */
+#endif
 
 struct lmb lmb;
 
@@ -54,16 +56,14 @@ void lmb_dump_all(void)
 #endif /* DEBUG */
 }
 
-static unsigned long __init
-lmb_addrs_overlap(unsigned long base1, unsigned long size1,
-                  unsigned long base2, unsigned long size2)
+static unsigned long __init lmb_addrs_overlap(unsigned long base1,
+                unsigned long size1, unsigned long base2, unsigned long size2)
 {
         return ((base1 < (base2+size2)) && (base2 < (base1+size1)));
 }
 
-static long __init
-lmb_addrs_adjacent(unsigned long base1, unsigned long size1,
-                   unsigned long base2, unsigned long size2)
+static long __init lmb_addrs_adjacent(unsigned long base1, unsigned long size1,
+                unsigned long base2, unsigned long size2)
 {
         if (base2 == base1 + size1)
                 return 1;
@@ -73,8 +73,8 @@ lmb_addrs_adjacent(unsigned long base1, unsigned long size1,
         return 0;
 }
 
-static long __init
-lmb_regions_adjacent(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
+static long __init lmb_regions_adjacent(struct lmb_region *rgn,
+                unsigned long r1, unsigned long r2)
 {
         unsigned long base1 = rgn->region[r1].base;
         unsigned long size1 = rgn->region[r1].size;
@@ -85,8 +85,8 @@ lmb_regions_adjacent(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
 }
 
 /* Assumption: base addr of region 1 < base addr of region 2 */
-static void __init
-lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
+static void __init lmb_coalesce_regions(struct lmb_region *rgn,
+                unsigned long r1, unsigned long r2)
 {
         unsigned long i;
 
@@ -99,8 +99,7 @@ lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1, unsigned long r2)
 }
 
 /* This routine called with relocation disabled. */
-void __init
-lmb_init(void)
+void __init lmb_init(void)
 {
         /* Create a dummy zero size LMB which will get coalesced away later.
          * This simplifies the lmb_add() code below...
@@ -115,9 +114,8 @@ lmb_init(void)
         lmb.reserved.cnt = 1;
 }
 
-/* This routine called with relocation disabled. */
-void __init
-lmb_analyze(void)
+/* This routine may be called with relocation disabled. */
+void __init lmb_analyze(void)
 {
         int i;
 
@@ -128,8 +126,8 @@ lmb_analyze(void)
 }
 
 /* This routine called with relocation disabled. */
-static long __init
-lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
+static long __init lmb_add_region(struct lmb_region *rgn, unsigned long base,
+                                  unsigned long size)
 {
         unsigned long i, coalesced = 0;
         long adjacent;
@@ -158,18 +156,17 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
                 coalesced++;
         }
 
-        if ( coalesced ) {
+        if (coalesced)
                 return coalesced;
-        } else if ( rgn->cnt >= MAX_LMB_REGIONS ) {
+        if (rgn->cnt >= MAX_LMB_REGIONS)
                 return -1;
-        }
 
         /* Couldn't coalesce the LMB, so add it to the sorted table. */
-        for (i=rgn->cnt-1; i >= 0; i--) {
+        for (i = rgn->cnt-1; i >= 0; i--) {
                 if (base < rgn->region[i].base) {
                         rgn->region[i+1].base = rgn->region[i].base;
                         rgn->region[i+1].size = rgn->region[i].size;
-                }  else {
+                } else {
                         rgn->region[i+1].base = base;
                         rgn->region[i+1].size = size;
                         break;
@@ -180,30 +177,28 @@ lmb_add_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
         return 0;
 }
 
-/* This routine called with relocation disabled. */
-long __init
-lmb_add(unsigned long base, unsigned long size)
+/* This routine may be called with relocation disabled. */
+long __init lmb_add(unsigned long base, unsigned long size)
 {
         struct lmb_region *_rgn = &(lmb.memory);
 
         /* On pSeries LPAR systems, the first LMB is our RMO region. */
-        if ( base == 0 )
+        if (base == 0)
                 lmb.rmo_size = size;
 
         return lmb_add_region(_rgn, base, size);
 
 }
 
-long __init
-lmb_reserve(unsigned long base, unsigned long size)
+long __init lmb_reserve(unsigned long base, unsigned long size)
 {
         struct lmb_region *_rgn = &(lmb.reserved);
 
         return lmb_add_region(_rgn, base, size);
 }
 
-long __init
-lmb_overlaps_region(struct lmb_region *rgn, unsigned long base, unsigned long size)
+long __init lmb_overlaps_region(struct lmb_region *rgn, unsigned long base,
+                                unsigned long size)
 {
         unsigned long i;
 
@@ -218,39 +213,44 @@ lmb_overlaps_region(struct lmb_region *rgn, unsigned long base, unsigned long si
         return (i < rgn->cnt) ? i : -1;
 }
 
-unsigned long __init
-lmb_alloc(unsigned long size, unsigned long align)
+unsigned long __init lmb_alloc(unsigned long size, unsigned long align)
 {
         return lmb_alloc_base(size, align, LMB_ALLOC_ANYWHERE);
 }
 
-unsigned long __init
-lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr)
+unsigned long __init lmb_alloc_base(unsigned long size, unsigned long align,
+                                    unsigned long max_addr)
 {
         long i, j;
         unsigned long base = 0;
 
-        for (i=lmb.memory.cnt-1; i >= 0; i--) {
+#ifdef CONFIG_PPC32
+        /* On 32-bit, make sure we allocate lowmem */
+        if (max_addr == LMB_ALLOC_ANYWHERE)
+                max_addr = __max_low_memory;
+#endif
+        for (i = lmb.memory.cnt-1; i >= 0; i--) {
                 unsigned long lmbbase = lmb.memory.region[i].base;
                 unsigned long lmbsize = lmb.memory.region[i].size;
 
-                if ( max_addr == LMB_ALLOC_ANYWHERE )
-                        base = _ALIGN_DOWN(lmbbase+lmbsize-size, align);
-                else if ( lmbbase < max_addr )
-                        base = _ALIGN_DOWN(min(lmbbase+lmbsize,max_addr)-size, align);
-                else
+                if (max_addr == LMB_ALLOC_ANYWHERE)
+                        base = _ALIGN_DOWN(lmbbase + lmbsize - size, align);
+                else if (lmbbase < max_addr) {
+                        base = min(lmbbase + lmbsize, max_addr);
+                        base = _ALIGN_DOWN(base - size, align);
+                } else
                         continue;
 
-                while ( (lmbbase <= base) &&
-                        ((j = lmb_overlaps_region(&lmb.reserved,base,size)) >= 0) ) {
-                        base = _ALIGN_DOWN(lmb.reserved.region[j].base-size, align);
-                }
+                while ((lmbbase <= base) &&
+                       ((j = lmb_overlaps_region(&lmb.reserved, base, size)) >= 0) )
+                        base = _ALIGN_DOWN(lmb.reserved.region[j].base - size,
+                                           align);
 
-                if ( (base != 0) && (lmbbase <= base) )
+                if ((base != 0) && (lmbbase <= base))
                         break;
         }
 
-        if ( i < 0 )
+        if (i < 0)
                 return 0;
 
         lmb_add_region(&lmb.reserved, base, size);
@@ -259,14 +259,12 @@ lmb_alloc_base(unsigned long size, unsigned long align, unsigned long max_addr)
 }
 
 /* You must call lmb_analyze() before this. */
-unsigned long __init
-lmb_phys_mem_size(void)
+unsigned long __init lmb_phys_mem_size(void)
 {
         return lmb.memory.size;
 }
 
-unsigned long __init
-lmb_end_of_DRAM(void)
+unsigned long __init lmb_end_of_DRAM(void)
 {
         int idx = lmb.memory.cnt - 1;
 
@@ -277,9 +275,8 @@ lmb_end_of_DRAM(void)
  * Truncate the lmb list to memory_limit if it's set
  * You must call lmb_analyze() after this.
  */
-void __init lmb_enforce_memory_limit(void)
+void __init lmb_enforce_memory_limit(unsigned long memory_limit)
 {
-        extern unsigned long memory_limit;
         unsigned long i, limit;
 
         if (! memory_limit)
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
new file mode 100644
index 000000000000..117b00012e14
--- /dev/null
+++ b/arch/powerpc/mm/mem.c
@@ -0,0 +1,564 @@
+/*
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *  PPC44x/36-bit changes by Matt Porter (mporter@mvista.com)
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/highmem.h>
+#include <linux/initrd.h>
+#include <linux/pagemap.h>
+
+#include <asm/pgalloc.h>
+#include <asm/prom.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/smp.h>
+#include <asm/machdep.h>
+#include <asm/btext.h>
+#include <asm/tlb.h>
+#include <asm/prom.h>
+#include <asm/lmb.h>
+#include <asm/sections.h>
+#ifdef CONFIG_PPC64
+#include <asm/vdso.h>
+#endif
+
+#include "mmu_decl.h"
+
+#ifndef CPU_FTR_COHERENT_ICACHE
+#define CPU_FTR_COHERENT_ICACHE 0       /* XXX for now */
+#define CPU_FTR_NOEXECUTE       0
+#endif
+
+int init_bootmem_done;
+int mem_init_done;
+unsigned long memory_limit;
+
+/*
+ * This is called by /dev/mem to know if a given address has to
+ * be mapped non-cacheable or not
+ */
+int page_is_ram(unsigned long pfn)
+{
+        unsigned long paddr = (pfn << PAGE_SHIFT);
+
+#ifndef CONFIG_PPC64    /* XXX for now */
+        return paddr < __pa(high_memory);
+#else
+        int i;
+        for (i=0; i < lmb.memory.cnt; i++) {
+                unsigned long base;
+
+                base = lmb.memory.region[i].base;
+
+                if ((paddr >= base) &&
+                        (paddr < (base + lmb.memory.region[i].size))) {
+                        return 1;
+                }
+        }
+
+        return 0;
+#endif
+}
+EXPORT_SYMBOL(page_is_ram);
+
+pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+                              unsigned long size, pgprot_t vma_prot)
+{
+        if (ppc_md.phys_mem_access_prot)
+                return ppc_md.phys_mem_access_prot(file, pfn, size, vma_prot);
+
+        if (!page_is_ram(pfn))
+                vma_prot = __pgprot(pgprot_val(vma_prot)
+                                    | _PAGE_GUARDED | _PAGE_NO_CACHE);
+        return vma_prot;
+}
+EXPORT_SYMBOL(phys_mem_access_prot);
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+
+void online_page(struct page *page)
+{
+        ClearPageReserved(page);
+        free_cold_page(page);
+        totalram_pages++;
+        num_physpages++;
+}
+
+/*
+ * This works only for the non-NUMA case.  Later, we'll need a lookup
+ * to convert from real physical addresses to nid, that doesn't use
+ * pfn_to_nid().
+ */
+int __devinit add_memory(u64 start, u64 size)
+{
+        struct pglist_data *pgdata = NODE_DATA(0);
+        struct zone *zone;
+        unsigned long start_pfn = start >> PAGE_SHIFT;
+        unsigned long nr_pages = size >> PAGE_SHIFT;
+
+        /* this should work for most non-highmem platforms */
+        zone = pgdata->node_zones;
+
+        return __add_pages(zone, start_pfn, nr_pages);
+
+        return 0;
+}
+
+/*
+ * First pass at this code will check to determine if the remove
+ * request is within the RMO.  Do not allow removal within the RMO.
+ */
+int __devinit remove_memory(u64 start, u64 size)
+{
+        struct zone *zone;
+        unsigned long start_pfn, end_pfn, nr_pages;
+
+        start_pfn = start >> PAGE_SHIFT;
+        nr_pages = size >> PAGE_SHIFT;
+        end_pfn = start_pfn + nr_pages;
+
+        printk("%s(): Attempting to remove memoy in range "
+                        "%lx to %lx\n", __func__, start, start+size);
+        /*
+         * check for range within RMO
+         */
+        zone = page_zone(pfn_to_page(start_pfn));
+
+        printk("%s(): memory will be removed from "
+                        "the %s zone\n", __func__, zone->name);
+
+        /*
+         * not handling removing memory ranges that
+         * overlap multiple zones yet
+         */
+        if (end_pfn > (zone->zone_start_pfn + zone->spanned_pages))
+                goto overlap;
+
+        /* make sure it is NOT in RMO */
+        if ((start < lmb.rmo_size) || ((start+size) < lmb.rmo_size)) {
+                printk("%s(): range to be removed must NOT be in RMO!\n",
+                        __func__);
+                goto in_rmo;
+        }
+
+        return __remove_pages(zone, start_pfn, nr_pages);
+
+overlap:
+        printk("%s(): memory range to be removed overlaps "
+                "multiple zones!!!\n", __func__);
+in_rmo:
+        return -1;
+}
+#endif /* CONFIG_MEMORY_HOTPLUG */
+
+void show_mem(void)
+{
+        unsigned long total = 0, reserved = 0;
+        unsigned long shared = 0, cached = 0;
+        unsigned long highmem = 0;
+        struct page *page;
+        pg_data_t *pgdat;
+        unsigned long i;
+
+        printk("Mem-info:\n");
+        show_free_areas();
+        printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
+        for_each_pgdat(pgdat) {
+                unsigned long flags;
+                pgdat_resize_lock(pgdat, &flags);
+                for (i = 0; i < pgdat->node_spanned_pages; i++) {
+                        page = pgdat_page_nr(pgdat, i);
+                        total++;
+                        if (PageHighMem(page))
+                                highmem++;
+                        if (PageReserved(page))
+                                reserved++;
+                        else if (PageSwapCache(page))
+                                cached++;
+                        else if (page_count(page))
+                                shared += page_count(page) - 1;
+                }
+                pgdat_resize_unlock(pgdat, &flags);
+        }
+        printk("%ld pages of RAM\n", total);
+#ifdef CONFIG_HIGHMEM
+        printk("%ld pages of HIGHMEM\n", highmem);
+#endif
+        printk("%ld reserved pages\n", reserved);
+        printk("%ld pages shared\n", shared);
+        printk("%ld pages swap cached\n", cached);
+}
+
+/*
+ * Initialize the bootmem system and give it all the memory we
+ * have available.  If we are using highmem, we only put the
+ * lowmem into the bootmem system.
+ */
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+void __init do_init_bootmem(void)
+{
+        unsigned long i;
+        unsigned long start, bootmap_pages;
+        unsigned long total_pages;
+        int boot_mapsize;
+
+        max_pfn = total_pages = lmb_end_of_DRAM() >> PAGE_SHIFT;
+#ifdef CONFIG_HIGHMEM
+        total_pages = total_lowmem >> PAGE_SHIFT;
+#endif
+
+        /*
+         * Find an area to use for the bootmem bitmap.  Calculate the size of
+         * bitmap required as (Total Memory) / PAGE_SIZE / BITS_PER_BYTE.
+         * Add 1 additional page in case the address isn't page-aligned.
+         */
+        bootmap_pages = bootmem_bootmap_pages(total_pages);
+
+        start = lmb_alloc(bootmap_pages << PAGE_SHIFT, PAGE_SIZE);
+        BUG_ON(!start);
+
+        boot_mapsize = init_bootmem(start >> PAGE_SHIFT, total_pages);
+
+        /* Add all physical memory to the bootmem map, mark each area
+         * present.
+         */
+        for (i = 0; i < lmb.memory.cnt; i++) {
+                unsigned long base = lmb.memory.region[i].base;
+                unsigned long size = lmb_size_bytes(&lmb.memory, i);
+#ifdef CONFIG_HIGHMEM
+                if (base >= total_lowmem)
+                        continue;
+                if (base + size > total_lowmem)
+                        size = total_lowmem - base;
+#endif
+                free_bootmem(base, size);
+        }
+
+        /* reserve the sections we're already using */
+        for (i = 0; i < lmb.reserved.cnt; i++)
+                reserve_bootmem(lmb.reserved.region[i].base,
+                                lmb_size_bytes(&lmb.reserved, i));
+
+        /* XXX need to clip this if using highmem? */
+        for (i = 0; i < lmb.memory.cnt; i++)
+                memory_present(0, lmb_start_pfn(&lmb.memory, i),
+                               lmb_end_pfn(&lmb.memory, i));
+        init_bootmem_done = 1;
+}
+
+/*
+ * paging_init() sets up the page tables - in fact we've already done this.
+ */
+void __init paging_init(void)
+{
+        unsigned long zones_size[MAX_NR_ZONES];
+        unsigned long zholes_size[MAX_NR_ZONES];
+        unsigned long total_ram = lmb_phys_mem_size();
+        unsigned long top_of_ram = lmb_end_of_DRAM();
+
+#ifdef CONFIG_HIGHMEM
+        map_page(PKMAP_BASE, 0, 0);     /* XXX gross */
+        pkmap_page_table = pte_offset_kernel(pmd_offset(pgd_offset_k
+                        (PKMAP_BASE), PKMAP_BASE), PKMAP_BASE);
+        map_page(KMAP_FIX_BEGIN, 0, 0); /* XXX gross */
+        kmap_pte = pte_offset_kernel(pmd_offset(pgd_offset_k
+                        (KMAP_FIX_BEGIN), KMAP_FIX_BEGIN), KMAP_FIX_BEGIN);
+        kmap_prot = PAGE_KERNEL;
+#endif /* CONFIG_HIGHMEM */
+
+        printk(KERN_INFO "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
+               top_of_ram, total_ram);
+        printk(KERN_INFO "Memory hole size: %ldMB\n",
+               (top_of_ram - total_ram) >> 20);
+        /*
+         * All pages are DMA-able so we put them all in the DMA zone.
+         */
+        memset(zones_size, 0, sizeof(zones_size));
+        memset(zholes_size, 0, sizeof(zholes_size));
+
+        zones_size[ZONE_DMA] = top_of_ram >> PAGE_SHIFT;
+        zholes_size[ZONE_DMA] = (top_of_ram - total_ram) >> PAGE_SHIFT;
+
+#ifdef CONFIG_HIGHMEM
+        zones_size[ZONE_DMA] = total_lowmem >> PAGE_SHIFT;
+        zones_size[ZONE_HIGHMEM] = (total_memory - total_lowmem) >> PAGE_SHIFT;
+        zholes_size[ZONE_HIGHMEM] = (top_of_ram - total_ram) >> PAGE_SHIFT;
+#else
+        zones_size[ZONE_DMA] = top_of_ram >> PAGE_SHIFT;
+        zholes_size[ZONE_DMA] = (top_of_ram - total_ram) >> PAGE_SHIFT;
+#endif /* CONFIG_HIGHMEM */
+
+        free_area_init_node(0, NODE_DATA(0), zones_size,
+                            __pa(PAGE_OFFSET) >> PAGE_SHIFT, zholes_size);
+}
+#endif /* ! CONFIG_NEED_MULTIPLE_NODES */
+
+void __init mem_init(void)
+{
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+        int nid;
+#endif
+        pg_data_t *pgdat;
+        unsigned long i;
+        struct page *page;
+        unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize;
+
+        num_physpages = max_pfn;        /* RAM is assumed contiguous */
+        high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
+
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+        for_each_online_node(nid) {
+                if (NODE_DATA(nid)->node_spanned_pages != 0) {
+                        printk("freeing bootmem node %x\n", nid);
+                        totalram_pages +=
+                                free_all_bootmem_node(NODE_DATA(nid));
+                }
+        }
+#else
+        max_mapnr = num_physpages;
+        totalram_pages += free_all_bootmem();
+#endif
+        for_each_pgdat(pgdat) {
+                for (i = 0; i < pgdat->node_spanned_pages; i++) {
+                        page = pgdat_page_nr(pgdat, i);
+                        if (PageReserved(page))
+                                reservedpages++;
+                }
+        }
+
+        codesize = (unsigned long)&_sdata - (unsigned long)&_stext;
+        datasize = (unsigned long)&__init_begin - (unsigned long)&_sdata;
+        initsize = (unsigned long)&__init_end - (unsigned long)&__init_begin;
+        bsssize = (unsigned long)&__bss_stop - (unsigned long)&__bss_start;
+
+#ifdef CONFIG_HIGHMEM
+        {
+                unsigned long pfn, highmem_mapnr;
+
+                highmem_mapnr = total_lowmem >> PAGE_SHIFT;
+                for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) {
+                        struct page *page = pfn_to_page(pfn);
+
+                        ClearPageReserved(page);
+                        set_page_count(page, 1);
+                        __free_page(page);
+                        totalhigh_pages++;
+                }
+                totalram_pages += totalhigh_pages;
+                printk(KERN_INFO "High memory: %luk\n",
+                       totalhigh_pages << (PAGE_SHIFT-10));
+        }
+#endif /* CONFIG_HIGHMEM */
+
+        printk(KERN_INFO "Memory: %luk/%luk available (%luk kernel code, "
+               "%luk reserved, %luk data, %luk bss, %luk init)\n",
+                (unsigned long)nr_free_pages() << (PAGE_SHIFT-10),
+                num_physpages << (PAGE_SHIFT-10),
+                codesize >> 10,
+                reservedpages << (PAGE_SHIFT-10),
+                datasize >> 10,
+                bsssize >> 10,
+                initsize >> 10);
+
+        mem_init_done = 1;
+
+#ifdef CONFIG_PPC64
+        /* Initialize the vDSO */
+        vdso_init();
+#endif
+}
+
+/*
+ * This is called when a page has been modified by the kernel.
+ * It just marks the page as not i-cache clean.  We do the i-cache
+ * flush later when the page is given to a user process, if necessary.
+ */
+void flush_dcache_page(struct page *page)
+{
+        if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
+                return;
+        /* avoid an atomic op if possible */
+        if (test_bit(PG_arch_1, &page->flags))
+                clear_bit(PG_arch_1, &page->flags);
+}
+EXPORT_SYMBOL(flush_dcache_page);
+
+void flush_dcache_icache_page(struct page *page)
+{
+#ifdef CONFIG_BOOKE
+        void *start = kmap_atomic(page, KM_PPC_SYNC_ICACHE);
+        __flush_dcache_icache(start);
+        kunmap_atomic(start, KM_PPC_SYNC_ICACHE);
+#elif defined(CONFIG_8xx) || defined(CONFIG_PPC64)
+        /* On 8xx there is no need to kmap since highmem is not supported */
+        __flush_dcache_icache(page_address(page)); 
+#else
+        __flush_dcache_icache_phys(page_to_pfn(page) << PAGE_SHIFT);
+#endif
+
+}
+void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
+{
+        clear_page(page);
+
+        if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
+                return;
+        /*
+         * We shouldnt have to do this, but some versions of glibc
+         * require it (ld.so assumes zero filled pages are icache clean)
+         * - Anton
+         */
+
+        /* avoid an atomic op if possible */
+        if (test_bit(PG_arch_1, &pg->flags))
+                clear_bit(PG_arch_1, &pg->flags);
+}
+EXPORT_SYMBOL(clear_user_page);
+
+void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
+                    struct page *pg)
+{
+        copy_page(vto, vfrom);
+
+        /*
+         * We should be able to use the following optimisation, however
+         * there are two problems.
+         * Firstly a bug in some versions of binutils meant PLT sections
+         * were not marked executable.
+         * Secondly the first word in the GOT section is blrl, used
+         * to establish the GOT address. Until recently the GOT was
+         * not marked executable.
+         * - Anton
+         */
+#if 0
+        if (!vma->vm_file && ((vma->vm_flags & VM_EXEC) == 0))
+                return;
+#endif
+
+        if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
+                return;
+
+        /* avoid an atomic op if possible */
+        if (test_bit(PG_arch_1, &pg->flags))
+                clear_bit(PG_arch_1, &pg->flags);
+}
+
+void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
+                             unsigned long addr, int len)
+{
+        unsigned long maddr;
+
+        maddr = (unsigned long) kmap(page) + (addr & ~PAGE_MASK);
+        flush_icache_range(maddr, maddr + len);
+        kunmap(page);
+}
+EXPORT_SYMBOL(flush_icache_user_range);
+
+/*
+ * This is called at the end of handling a user page fault, when the
+ * fault has been handled by updating a PTE in the linux page tables.
+ * We use it to preload an HPTE into the hash table corresponding to
+ * the updated linux PTE.
+ * 
+ * This must always be called with the mm->page_table_lock held
+ */
+void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
+                      pte_t pte)
+{
+        /* handle i-cache coherency */
+        unsigned long pfn = pte_pfn(pte);
+#ifdef CONFIG_PPC32
+        pmd_t *pmd;
+#else
+        unsigned long vsid;
+        void *pgdir;
+        pte_t *ptep;
+        int local = 0;
+        cpumask_t tmp;
+        unsigned long flags;
+#endif
+
+        /* handle i-cache coherency */
+        if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE) &&
+            !cpu_has_feature(CPU_FTR_NOEXECUTE) &&
+            pfn_valid(pfn)) {
+                struct page *page = pfn_to_page(pfn);
+                if (!PageReserved(page)
+                    && !test_bit(PG_arch_1, &page->flags)) {
+                        if (vma->vm_mm == current->active_mm) {
+#ifdef CONFIG_8xx
+                        /* On 8xx, cache control instructions (particularly 
+                         * "dcbst" from flush_dcache_icache) fault as write 
+                         * operation if there is an unpopulated TLB entry 
+                         * for the address in question. To workaround that, 
+                         * we invalidate the TLB here, thus avoiding dcbst 
+                         * misbehaviour.
+                         */
+                                _tlbie(address);
+#endif
+                                __flush_dcache_icache((void *) address);
+                        } else
+                                flush_dcache_icache_page(page);
+                        set_bit(PG_arch_1, &page->flags);
+                }
+        }
+
+#ifdef CONFIG_PPC_STD_MMU
+        /* We only want HPTEs for linux PTEs that have _PAGE_ACCESSED set */
+        if (!pte_young(pte) || address >= TASK_SIZE)
+                return;
+#ifdef CONFIG_PPC32
+        if (Hash == 0)
+                return;
+        pmd = pmd_offset(pgd_offset(vma->vm_mm, address), address);
+        if (!pmd_none(*pmd))
+                add_hash_page(vma->vm_mm->context, address, pmd_val(*pmd));
+#else
+        pgdir = vma->vm_mm->pgd;
+        if (pgdir == NULL)
+                return;
+
+        ptep = find_linux_pte(pgdir, address);
+        if (!ptep)
+                return;
+
+        vsid = get_vsid(vma->vm_mm->context.id, address);
+
+        local_irq_save(flags);
+        tmp = cpumask_of_cpu(smp_processor_id());
+        if (cpus_equal(vma->vm_mm->cpu_vm_mask, tmp))
+                local = 1;
+
+        __hash_page(address, 0, vsid, ptep, 0x300, local);
+        local_irq_restore(flags);
+#endif
+#endif
+}
diff --git a/arch/ppc64/mm/mmap.c b/arch/powerpc/mm/mmap.c
index fe65f522aff3..fe65f522aff3 100644
--- a/arch/ppc64/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
diff --git a/arch/powerpc/mm/mmu_context_32.c b/arch/powerpc/mm/mmu_context_32.c
new file mode 100644
index 000000000000..a8816e0f6a86
--- /dev/null
+++ b/arch/powerpc/mm/mmu_context_32.c
@@ -0,0 +1,86 @@
+/*
+ * This file contains the routines for handling the MMU on those
+ * PowerPC implementations where the MMU substantially follows the
+ * architecture specification.  This includes the 6xx, 7xx, 7xxx,
+ * 8260, and POWER3 implementations but excludes the 8xx and 4xx.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+
+mm_context_t next_mmu_context;
+unsigned long context_map[LAST_CONTEXT / BITS_PER_LONG + 1];
+#ifdef FEW_CONTEXTS
+atomic_t nr_free_contexts;
+struct mm_struct *context_mm[LAST_CONTEXT+1];
+void steal_context(void);
+#endif /* FEW_CONTEXTS */
+
+/*
+ * Initialize the context management stuff.
+ */
+void __init
+mmu_context_init(void)
+{
+        /*
+         * Some processors have too few contexts to reserve one for
+         * init_mm, and require using context 0 for a normal task.
+         * Other processors reserve the use of context zero for the kernel.
+         * This code assumes FIRST_CONTEXT < 32.
+         */
+        context_map[0] = (1 << FIRST_CONTEXT) - 1;
+        next_mmu_context = FIRST_CONTEXT;
+#ifdef FEW_CONTEXTS
+        atomic_set(&nr_free_contexts, LAST_CONTEXT - FIRST_CONTEXT + 1);
+#endif /* FEW_CONTEXTS */
+}
+
+#ifdef FEW_CONTEXTS
+/*
+ * Steal a context from a task that has one at the moment.
+ * This is only used on 8xx and 4xx and we presently assume that
+ * they don't do SMP.  If they do then this will have to check
+ * whether the MM we steal is in use.
+ * We also assume that this is only used on systems that don't
+ * use an MMU hash table - this is true for 8xx and 4xx.
+ * This isn't an LRU system, it just frees up each context in
+ * turn (sort-of pseudo-random replacement :).  This would be the
+ * place to implement an LRU scheme if anyone was motivated to do it.
+ *  -- paulus
+ */
+void
+steal_context(void)
+{
+        struct mm_struct *mm;
+
+        /* free up context `next_mmu_context' */
+        /* if we shouldn't free context 0, don't... */
+        if (next_mmu_context < FIRST_CONTEXT)
+                next_mmu_context = FIRST_CONTEXT;
+        mm = context_mm[next_mmu_context];
+        flush_tlb_mm(mm);
+        destroy_context(mm);
+}
+#endif /* FEW_CONTEXTS */
diff --git a/arch/powerpc/mm/mmu_context_64.c b/arch/powerpc/mm/mmu_context_64.c
new file mode 100644
index 000000000000..714a84dd8d5d
--- /dev/null
+++ b/arch/powerpc/mm/mmu_context_64.c
@@ -0,0 +1,63 @@
+/*
+ *  MMU context allocation for 64-bit kernels.
+ *
+ *  Copyright (C) 2004 Anton Blanchard, IBM Corp. <anton@samba.org>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/spinlock.h>
+#include <linux/idr.h>
+
+#include <asm/mmu_context.h>
+
+static DEFINE_SPINLOCK(mmu_context_lock);
+static DEFINE_IDR(mmu_context_idr);
+
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+        int index;
+        int err;
+
+again:
+        if (!idr_pre_get(&mmu_context_idr, GFP_KERNEL))
+                return -ENOMEM;
+
+        spin_lock(&mmu_context_lock);
+        err = idr_get_new_above(&mmu_context_idr, NULL, 1, &index);
+        spin_unlock(&mmu_context_lock);
+
+        if (err == -EAGAIN)
+                goto again;
+        else if (err)
+                return err;
+
+        if (index > MAX_CONTEXT) {
+                idr_remove(&mmu_context_idr, index);
+                return -ENOMEM;
+        }
+
+        mm->context.id = index;
+
+        return 0;
+}
+
+void destroy_context(struct mm_struct *mm)
+{
+        spin_lock(&mmu_context_lock);
+        idr_remove(&mmu_context_idr, mm->context.id);
+        spin_unlock(&mmu_context_lock);
+
+        mm->context.id = NO_CONTEXT;
+}
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
new file mode 100644
index 000000000000..a4d7a327c0e5
--- /dev/null
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -0,0 +1,87 @@
+/*
+ * Declarations of procedures and variables shared between files
+ * in arch/ppc/mm/.
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+#include <asm/tlbflush.h>
+#include <asm/mmu.h>
+
+#ifdef CONFIG_PPC32
+extern void mapin_ram(void);
+extern int map_page(unsigned long va, phys_addr_t pa, int flags);
+extern void setbat(int index, unsigned long virt, unsigned long phys,
+                   unsigned int size, int flags);
+extern void settlbcam(int index, unsigned long virt, phys_addr_t phys,
+                      unsigned int size, int flags, unsigned int pid);
+extern void invalidate_tlbcam_entry(int index);
+
+extern int __map_without_bats;
+extern unsigned long ioremap_base;
+extern unsigned long ioremap_bot;
+extern unsigned int rtas_data, rtas_size;
+
+extern PTE *Hash, *Hash_end;
+extern unsigned long Hash_size, Hash_mask;
+
+extern unsigned int num_tlbcam_entries;
+#endif
+
+extern unsigned long __max_low_memory;
+extern unsigned long __initial_memory_limit;
+extern unsigned long total_memory;
+extern unsigned long total_lowmem;
+
+/* ...and now those things that may be slightly different between processor
+ * architectures.  -- Dan
+ */
+#if defined(CONFIG_8xx)
+#define flush_HPTE(X, va, pg)   _tlbie(va)
+#define MMU_init_hw()           do { } while(0)
+#define mmu_mapin_ram()         (0UL)
+
+#elif defined(CONFIG_4xx)
+#define flush_HPTE(X, va, pg)   _tlbie(va)
+extern void MMU_init_hw(void);
+extern unsigned long mmu_mapin_ram(void);
+
+#elif defined(CONFIG_FSL_BOOKE)
+#define flush_HPTE(X, va, pg)   _tlbie(va)
+extern void MMU_init_hw(void);
+extern unsigned long mmu_mapin_ram(void);
+extern void adjust_total_lowmem(void);
+
+#elif defined(CONFIG_PPC32)
+/* anything 32-bit except 4xx or 8xx */
+extern void MMU_init_hw(void);
+extern unsigned long mmu_mapin_ram(void);
+
+/* Be careful....this needs to be updated if we ever encounter 603 SMPs,
+ * which includes all new 82xx processors.  We need tlbie/tlbsync here
+ * in that case (I think). -- Dan.
+ */
+static inline void flush_HPTE(unsigned context, unsigned long va,
+                              unsigned long pdval)
+{
+        if ((Hash != 0) &&
+            cpu_has_feature(CPU_FTR_HPTE_TABLE))
+                flush_hash_pages(0, va, pdval, 1);
+        else
+                _tlbie(va);
+}
+#endif
diff --git a/arch/ppc64/mm/numa.c b/arch/powerpc/mm/numa.c
index cb864b8f2750..4035cad8d7f1 100644
--- a/arch/ppc64/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -20,6 +20,7 @@
 #include <asm/lmb.h>
 #include <asm/machdep.h>
 #include <asm/abs_addr.h>
+#include <asm/system.h>
 
 static int numa_enabled = 1;
 
@@ -300,7 +301,6 @@ static unsigned long __init numa_enforce_memory_limit(unsigned long start, unsig
          * we've already adjusted it for the limit and it takes care of
          * having memory holes below the limit.
          */
-        extern unsigned long memory_limit;
 
         if (! memory_limit)
                 return size;
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
new file mode 100644
index 000000000000..f4e5ac122615
--- /dev/null
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -0,0 +1,467 @@
+/*
+ * This file contains the routines setting up the linux page tables.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/highmem.h>
+
+#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
+#include <asm/io.h>
+
+#include "mmu_decl.h"
+
+unsigned long ioremap_base;
+unsigned long ioremap_bot;
+int io_bat_index;
+
+#if defined(CONFIG_6xx) || defined(CONFIG_POWER3)
+#define HAVE_BATS       1
+#endif
+
+#if defined(CONFIG_FSL_BOOKE)
+#define HAVE_TLBCAM     1
+#endif
+
+extern char etext[], _stext[];
+
+#ifdef CONFIG_SMP
+extern void hash_page_sync(void);
+#endif
+
+#ifdef HAVE_BATS
+extern unsigned long v_mapped_by_bats(unsigned long va);
+extern unsigned long p_mapped_by_bats(unsigned long pa);
+void setbat(int index, unsigned long virt, unsigned long phys,
+            unsigned int size, int flags);
+
+#else /* !HAVE_BATS */
+#define v_mapped_by_bats(x)     (0UL)
+#define p_mapped_by_bats(x)     (0UL)
+#endif /* HAVE_BATS */
+
+#ifdef HAVE_TLBCAM
+extern unsigned int tlbcam_index;
+extern unsigned long v_mapped_by_tlbcam(unsigned long va);
+extern unsigned long p_mapped_by_tlbcam(unsigned long pa);
+#else /* !HAVE_TLBCAM */
+#define v_mapped_by_tlbcam(x)   (0UL)
+#define p_mapped_by_tlbcam(x)   (0UL)
+#endif /* HAVE_TLBCAM */
+
+#ifdef CONFIG_PTE_64BIT
+/* 44x uses an 8kB pgdir because it has 8-byte Linux PTEs. */
+#define PGDIR_ORDER     1
+#else
+#define PGDIR_ORDER     0
+#endif
+
+pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+        pgd_t *ret;
+
+        ret = (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, PGDIR_ORDER);
+        return ret;
+}
+
+void pgd_free(pgd_t *pgd)
+{
+        free_pages((unsigned long)pgd, PGDIR_ORDER);
+}
+
+pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+{
+        pte_t *pte;
+        extern int mem_init_done;
+        extern void *early_get_page(void);
+
+        if (mem_init_done) {
+                pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+        } else {
+                pte = (pte_t *)early_get_page();
+                if (pte)
+                        clear_page(pte);
+        }
+        return pte;
+}
+
+struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+        struct page *ptepage;
+
+#ifdef CONFIG_HIGHPTE
+        gfp_t flags = GFP_KERNEL | __GFP_HIGHMEM | __GFP_REPEAT;
+#else
+        gfp_t flags = GFP_KERNEL | __GFP_REPEAT;
+#endif
+
+        ptepage = alloc_pages(flags, 0);
+        if (ptepage)
+                clear_highpage(ptepage);
+        return ptepage;
+}
+
+void pte_free_kernel(pte_t *pte)
+{
+#ifdef CONFIG_SMP
+        hash_page_sync();
+#endif
+        free_page((unsigned long)pte);
+}
+
+void pte_free(struct page *ptepage)
+{
+#ifdef CONFIG_SMP
+        hash_page_sync();
+#endif
+        __free_page(ptepage);
+}
+
+#ifndef CONFIG_PHYS_64BIT
+void __iomem *
+ioremap(phys_addr_t addr, unsigned long size)
+{
+        return __ioremap(addr, size, _PAGE_NO_CACHE);
+}
+#else /* CONFIG_PHYS_64BIT */
+void __iomem *
+ioremap64(unsigned long long addr, unsigned long size)
+{
+        return __ioremap(addr, size, _PAGE_NO_CACHE);
+}
+
+void __iomem *
+ioremap(phys_addr_t addr, unsigned long size)
+{
+        phys_addr_t addr64 = fixup_bigphys_addr(addr, size);
+
+        return ioremap64(addr64, size);
+}
+#endif /* CONFIG_PHYS_64BIT */
+
+void __iomem *
+__ioremap(phys_addr_t addr, unsigned long size, unsigned long flags)
+{
+        unsigned long v, i;
+        phys_addr_t p;
+        int err;
+
+        /*
+         * Choose an address to map it to.
+         * Once the vmalloc system is running, we use it.
+         * Before then, we use space going down from ioremap_base
+         * (ioremap_bot records where we're up to).
+         */
+        p = addr & PAGE_MASK;
+        size = PAGE_ALIGN(addr + size) - p;
+
+        /*
+         * If the address lies within the first 16 MB, assume it's in ISA
+         * memory space
+         */
+        if (p < 16*1024*1024)
+                p += _ISA_MEM_BASE;
+
+        /*
+         * Don't allow anybody to remap normal RAM that we're using.
+         * mem_init() sets high_memory so only do the check after that.
+         */
+        if (mem_init_done && (p < virt_to_phys(high_memory))) {
+                printk("__ioremap(): phys addr "PHYS_FMT" is RAM lr %p\n", p,
+                       __builtin_return_address(0));
+                return NULL;
+        }
+
+        if (size == 0)
+                return NULL;
+
+        /*
+         * Is it already mapped?  Perhaps overlapped by a previous
+         * BAT mapping.  If the whole area is mapped then we're done,
+         * otherwise remap it since we want to keep the virt addrs for
+         * each request contiguous.
+         *
+         * We make the assumption here that if the bottom and top
+         * of the range we want are mapped then it's mapped to the
+         * same virt address (and this is contiguous).
+         *  -- Cort
+         */
+        if ((v = p_mapped_by_bats(p)) /*&& p_mapped_by_bats(p+size-1)*/ )
+                goto out;
+
+        if ((v = p_mapped_by_tlbcam(p)))
+                goto out;
+
+        if (mem_init_done) {
+                struct vm_struct *area;
+                area = get_vm_area(size, VM_IOREMAP);
+                if (area == 0)
+                        return NULL;
+                v = (unsigned long) area->addr;
+        } else {
+                v = (ioremap_bot -= size);
+        }
+
+        if ((flags & _PAGE_PRESENT) == 0)
+                flags |= _PAGE_KERNEL;
+        if (flags & _PAGE_NO_CACHE)
+                flags |= _PAGE_GUARDED;
+
+        /*
+         * Should check if it is a candidate for a BAT mapping
+         */
+
+        err = 0;
+        for (i = 0; i < size && err == 0; i += PAGE_SIZE)
+                err = map_page(v+i, p+i, flags);
+        if (err) {
+                if (mem_init_done)
+                        vunmap((void *)v);
+                return NULL;
+        }
+
+out:
+        return (void __iomem *) (v + ((unsigned long)addr & ~PAGE_MASK));
+}
+
+void iounmap(volatile void __iomem *addr)
+{
+        /*
+         * If mapped by BATs then there is nothing to do.
+         * Calling vfree() generates a benign warning.
+         */
+        if (v_mapped_by_bats((unsigned long)addr)) return;
+
+        if (addr > high_memory && (unsigned long) addr < ioremap_bot)
+                vunmap((void *) (PAGE_MASK & (unsigned long)addr));
+}
+
+void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+        return (void __iomem *) (port + _IO_BASE);
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+        /* Nothing to do */
+}
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);
+
+int
+map_page(unsigned long va, phys_addr_t pa, int flags)
+{
+        pmd_t *pd;
+        pte_t *pg;
+        int err = -ENOMEM;
+
+        /* Use upper 10 bits of VA to index the first level map */
+        pd = pmd_offset(pgd_offset_k(va), va);
+        /* Use middle 10 bits of VA to index the second-level map */
+        pg = pte_alloc_kernel(pd, va);
+        if (pg != 0) {
+                err = 0;
+                set_pte_at(&init_mm, va, pg, pfn_pte(pa >> PAGE_SHIFT, __pgprot(flags)));
+                if (mem_init_done)
+                        flush_HPTE(0, va, pmd_val(*pd));
+        }
+        return err;
+}
+
+/*
+ * Map in all of physical memory starting at KERNELBASE.
+ */
+void __init mapin_ram(void)
+{
+        unsigned long v, p, s, f;
+
+        s = mmu_mapin_ram();
+        v = KERNELBASE + s;
+        p = PPC_MEMSTART + s;
+        for (; s < total_lowmem; s += PAGE_SIZE) {
+                if ((char *) v >= _stext && (char *) v < etext)
+                        f = _PAGE_RAM_TEXT;
+                else
+                        f = _PAGE_RAM;
+                map_page(v, p, f);
+                v += PAGE_SIZE;
+                p += PAGE_SIZE;
+        }
+}
+
+/* is x a power of 2? */
+#define is_power_of_2(x)        ((x) != 0 && (((x) & ((x) - 1)) == 0))
+
+/* is x a power of 4? */
+#define is_power_of_4(x)        ((x) != 0 && (((x) & (x-1)) == 0) && (ffs(x) & 1))
+
+/*
+ * Set up a mapping for a block of I/O.
+ * virt, phys, size must all be page-aligned.
+ * This should only be called before ioremap is called.
+ */
+void __init io_block_mapping(unsigned long virt, phys_addr_t phys,
+                             unsigned int size, int flags)
+{
+        int i;
+
+        if (virt > KERNELBASE && virt < ioremap_bot)
+                ioremap_bot = ioremap_base = virt;
+
+#ifdef HAVE_BATS
+        /*
+         * Use a BAT for this if possible...
+         */
+        if (io_bat_index < 2 && is_power_of_2(size)
+            && (virt & (size - 1)) == 0 && (phys & (size - 1)) == 0) {
+                setbat(io_bat_index, virt, phys, size, flags);
+                ++io_bat_index;
+                return;
+        }
+#endif /* HAVE_BATS */
+
+#ifdef HAVE_TLBCAM
+        /*
+         * Use a CAM for this if possible...
+         */
+        if (tlbcam_index < num_tlbcam_entries && is_power_of_4(size)
+            && (virt & (size - 1)) == 0 && (phys & (size - 1)) == 0) {
+                settlbcam(tlbcam_index, virt, phys, size, flags, 0);
+                ++tlbcam_index;
+                return;
+        }
+#endif /* HAVE_TLBCAM */
+
+        /* No BATs available, put it in the page tables. */
+        for (i = 0; i < size; i += PAGE_SIZE)
+                map_page(virt + i, phys + i, flags);
+}
+
+/* Scan the real Linux page tables and return a PTE pointer for
+ * a virtual address in a context.
+ * Returns true (1) if PTE was found, zero otherwise.  The pointer to
+ * the PTE pointer is unmodified if PTE is not found.
+ */
+int
+get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep)
+{
+        pgd_t   *pgd;
+        pmd_t   *pmd;
+        pte_t   *pte;
+        int     retval = 0;
+
+        pgd = pgd_offset(mm, addr & PAGE_MASK);
+        if (pgd) {
+                pmd = pmd_offset(pgd, addr & PAGE_MASK);
+                if (pmd_present(*pmd)) {
+                        pte = pte_offset_map(pmd, addr & PAGE_MASK);
+                        if (pte) {
+                                retval = 1;
+                                *ptep = pte;
+                                /* XXX caller needs to do pte_unmap, yuck */
+                        }
+                }
+        }
+        return(retval);
+}
+
+/* Find physical address for this virtual address.  Normally used by
+ * I/O functions, but anyone can call it.
+ */
+unsigned long iopa(unsigned long addr)
+{
+        unsigned long pa;
+
+        /* I don't know why this won't work on PMacs or CHRP.  It
+         * appears there is some bug, or there is some implicit
+         * mapping done not properly represented by BATs or in page
+         * tables.......I am actively working on resolving this, but
+         * can't hold up other stuff.  -- Dan
+         */
+        pte_t *pte;
+        struct mm_struct *mm;
+
+        /* Check the BATs */
+        pa = v_mapped_by_bats(addr);
+        if (pa)
+                return pa;
+
+        /* Allow mapping of user addresses (within the thread)
+         * for DMA if necessary.
+         */
+        if (addr < TASK_SIZE)
+                mm = current->mm;
+        else
+                mm = &init_mm;
+
+        pa = 0;
+        if (get_pteptr(mm, addr, &pte)) {
+                pa = (pte_val(*pte) & PAGE_MASK) | (addr & ~PAGE_MASK);
+                pte_unmap(pte);
+        }
+
+        return(pa);
+}
+
+/* This is will find the virtual address for a physical one....
+ * Swiped from APUS, could be dangerous :-).
+ * This is only a placeholder until I really find a way to make this
+ * work.  -- Dan
+ */
+unsigned long
+mm_ptov (unsigned long paddr)
+{
+        unsigned long ret;
+#if 0
+        if (paddr < 16*1024*1024)
+                ret = ZTWO_VADDR(paddr);
+        else {
+                int i;
+
+                for (i = 0; i < kmap_chunk_count;){
+                        unsigned long phys = kmap_chunks[i++];
+                        unsigned long size = kmap_chunks[i++];
+                        unsigned long virt = kmap_chunks[i++];
+                        if (paddr >= phys
+                            && paddr < (phys + size)){
+                                ret = virt + paddr - phys;
+                                goto exit;
+                        }
+                }
+        
+                ret = (unsigned long) __va(paddr);
+        }
+exit:
+#ifdef DEBUGPV
+        printk ("PTOV(%lx)=%lx\n", paddr, ret);
+#endif
+#else
+        ret = (unsigned long)paddr + KERNELBASE;
+#endif
+        return ret;
+}
+
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
new file mode 100644
index 000000000000..b79a78206135
--- /dev/null
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -0,0 +1,347 @@
+/*
+ *  This file contains ioremap and related functions for 64-bit machines.
+ *
+ *  Derived from arch/ppc64/mm/init.c
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@samba.org)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  Dave Engebretsen <engebret@us.ibm.com>
+ *      Rework for PPC64 port.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/stddef.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/bootmem.h>
+#include <linux/highmem.h>
+#include <linux/idr.h>
+#include <linux/nodemask.h>
+#include <linux/module.h>
+
+#include <asm/pgalloc.h>
+#include <asm/page.h>
+#include <asm/prom.h>
+#include <asm/lmb.h>
+#include <asm/rtas.h>
+#include <asm/io.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
+#include <asm/smp.h>
+#include <asm/machdep.h>
+#include <asm/tlb.h>
+#include <asm/eeh.h>
+#include <asm/processor.h>
+#include <asm/mmzone.h>
+#include <asm/cputable.h>
+#include <asm/ppcdebug.h>
+#include <asm/sections.h>
+#include <asm/system.h>
+#include <asm/iommu.h>
+#include <asm/abs_addr.h>
+#include <asm/vdso.h>
+#include <asm/imalloc.h>
+
+unsigned long ioremap_bot = IMALLOC_BASE;
+static unsigned long phbs_io_bot = PHBS_IO_BASE;
+
+#ifdef CONFIG_PPC_ISERIES
+
+void __iomem *ioremap(unsigned long addr, unsigned long size)
+{
+        return (void __iomem *)addr;
+}
+
+extern void __iomem *__ioremap(unsigned long addr, unsigned long size,
+                       unsigned long flags)
+{
+        return (void __iomem *)addr;
+}
+
+void iounmap(volatile void __iomem *addr)
+{
+        return;
+}
+
+#else
+
+/*
+ * map_io_page currently only called by __ioremap
+ * map_io_page adds an entry to the ioremap page table
+ * and adds an entry to the HPT, possibly bolting it
+ */
+static int map_io_page(unsigned long ea, unsigned long pa, int flags)
+{
+        pgd_t *pgdp;
+        pud_t *pudp;
+        pmd_t *pmdp;
+        pte_t *ptep;
+        unsigned long vsid;
+
+        if (mem_init_done) {
+                pgdp = pgd_offset_k(ea);
+                pudp = pud_alloc(&init_mm, pgdp, ea);
+                if (!pudp)
+                        return -ENOMEM;
+                pmdp = pmd_alloc(&init_mm, pudp, ea);
+                if (!pmdp)
+                        return -ENOMEM;
+                ptep = pte_alloc_kernel(pmdp, ea);
+                if (!ptep)
+                        return -ENOMEM;
+                set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
+                                                          __pgprot(flags)));
+        } else {
+                unsigned long va, vpn, hash, hpteg;
+
+                /*
+                 * If the mm subsystem is not fully up, we cannot create a
+                 * linux page table entry for this mapping.  Simply bolt an
+                 * entry in the hardware page table.
+                 */
+                vsid = get_kernel_vsid(ea);
+                va = (vsid << 28) | (ea & 0xFFFFFFF);
+                vpn = va >> PAGE_SHIFT;
+
+                hash = hpt_hash(vpn, 0);
+
+                hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
+
+                /* Panic if a pte grpup is full */
+                if (ppc_md.hpte_insert(hpteg, va, pa >> PAGE_SHIFT,
+                                       HPTE_V_BOLTED,
+                                       _PAGE_NO_CACHE|_PAGE_GUARDED|PP_RWXX)
+                    == -1) {
+                        panic("map_io_page: could not insert mapping");
+                }
+        }
+        return 0;
+}
+
+
+static void __iomem * __ioremap_com(unsigned long addr, unsigned long pa,
+                            unsigned long ea, unsigned long size,
+                            unsigned long flags)
+{
+        unsigned long i;
+
+        if ((flags & _PAGE_PRESENT) == 0)
+                flags |= pgprot_val(PAGE_KERNEL);
+
+        for (i = 0; i < size; i += PAGE_SIZE)
+                if (map_io_page(ea+i, pa+i, flags))
+                        return NULL;
+
+        return (void __iomem *) (ea + (addr & ~PAGE_MASK));
+}
+
+
+void __iomem *
+ioremap(unsigned long addr, unsigned long size)
+{
+        return __ioremap(addr, size, _PAGE_NO_CACHE | _PAGE_GUARDED);
+}
+
+void __iomem * __ioremap(unsigned long addr, unsigned long size,
+                         unsigned long flags)
+{
+        unsigned long pa, ea;
+        void __iomem *ret;
+
+        /*
+         * Choose an address to map it to.
+         * Once the imalloc system is running, we use it.
+         * Before that, we map using addresses going
+         * up from ioremap_bot.  imalloc will use
+         * the addresses from ioremap_bot through
+         * IMALLOC_END
+         * 
+         */
+        pa = addr & PAGE_MASK;
+        size = PAGE_ALIGN(addr + size) - pa;
+
+        if (size == 0)
+                return NULL;
+
+        if (mem_init_done) {
+                struct vm_struct *area;
+                area = im_get_free_area(size);
+                if (area == NULL)
+                        return NULL;
+                ea = (unsigned long)(area->addr);
+                ret = __ioremap_com(addr, pa, ea, size, flags);
+                if (!ret)
+                        im_free(area->addr);
+        } else {
+                ea = ioremap_bot;
+                ret = __ioremap_com(addr, pa, ea, size, flags);
+                if (ret)
+                        ioremap_bot += size;
+        }
+        return ret;
+}
+
+#define IS_PAGE_ALIGNED(_val) ((_val) == ((_val) & PAGE_MASK))
+
+int __ioremap_explicit(unsigned long pa, unsigned long ea,
+                       unsigned long size, unsigned long flags)
+{
+        struct vm_struct *area;
+        void __iomem *ret;
+        
+        /* For now, require page-aligned values for pa, ea, and size */
+        if (!IS_PAGE_ALIGNED(pa) || !IS_PAGE_ALIGNED(ea) ||
+            !IS_PAGE_ALIGNED(size)) {
+                printk(KERN_ERR "unaligned value in %s\n", __FUNCTION__);
+                return 1;
+        }
+        
+        if (!mem_init_done) {
+                /* Two things to consider in this case:
+                 * 1) No records will be kept (imalloc, etc) that the region
+                 *    has been remapped
+                 * 2) It won't be easy to iounmap() the region later (because
+                 *    of 1)
+                 */
+                ;
+        } else {
+                area = im_get_area(ea, size,
+                        IM_REGION_UNUSED|IM_REGION_SUBSET|IM_REGION_EXISTS);
+                if (area == NULL) {
+                        /* Expected when PHB-dlpar is in play */
+                        return 1;
+                }
+                if (ea != (unsigned long) area->addr) {
+                        printk(KERN_ERR "unexpected addr return from "
+                               "im_get_area\n");
+                        return 1;
+                }
+        }
+        
+        ret = __ioremap_com(pa, pa, ea, size, flags);
+        if (ret == NULL) {
+                printk(KERN_ERR "ioremap_explicit() allocation failure !\n");
+                return 1;
+        }
+        if (ret != (void *) ea) {
+                printk(KERN_ERR "__ioremap_com() returned unexpected addr\n");
+                return 1;
+        }
+
+        return 0;
+}
+
+/*  
+ * Unmap an IO region and remove it from imalloc'd list.
+ * Access to IO memory should be serialized by driver.
+ * This code is modeled after vmalloc code - unmap_vm_area()
+ *
+ * XXX  what about calls before mem_init_done (ie python_countermeasures())
+ */
+void iounmap(volatile void __iomem *token)
+{
+        void *addr;
+
+        if (!mem_init_done)
+                return;
+        
+        addr = (void *) ((unsigned long __force) token & PAGE_MASK);
+
+        im_free(addr);
+}
+
+static int iounmap_subset_regions(unsigned long addr, unsigned long size)
+{
+        struct vm_struct *area;
+
+        /* Check whether subsets of this region exist */
+        area = im_get_area(addr, size, IM_REGION_SUPERSET);
+        if (area == NULL)
+                return 1;
+
+        while (area) {
+                iounmap((void __iomem *) area->addr);
+                area = im_get_area(addr, size,
+                                IM_REGION_SUPERSET);
+        }
+
+        return 0;
+}
+
+int iounmap_explicit(volatile void __iomem *start, unsigned long size)
+{
+        struct vm_struct *area;
+        unsigned long addr;
+        int rc;
+        
+        addr = (unsigned long __force) start & PAGE_MASK;
+
+        /* Verify that the region either exists or is a subset of an existing
+         * region.  In the latter case, split the parent region to create 
+         * the exact region 
+         */
+        area = im_get_area(addr, size, 
+                            IM_REGION_EXISTS | IM_REGION_SUBSET);
+        if (area == NULL) {
+                /* Determine whether subset regions exist.  If so, unmap */
+                rc = iounmap_subset_regions(addr, size);
+                if (rc) {
+                        printk(KERN_ERR
+                               "%s() cannot unmap nonexistent range 0x%lx\n",
+                                __FUNCTION__, addr);
+                        return 1;
+                }
+        } else {
+                iounmap((void __iomem *) area->addr);
+        }
+        /*
+         * FIXME! This can't be right:
+        iounmap(area->addr);
+         * Maybe it should be "iounmap(area);"
+         */
+        return 0;
+}
+
+#endif
+
+EXPORT_SYMBOL(ioremap);
+EXPORT_SYMBOL(__ioremap);
+EXPORT_SYMBOL(iounmap);
+
+void __iomem * reserve_phb_iospace(unsigned long size)
+{
+        void __iomem *virt_addr;
+                
+        if (phbs_io_bot >= IMALLOC_BASE) 
+                panic("reserve_phb_iospace(): phb io space overflow\n");
+                        
+        virt_addr = (void __iomem *) phbs_io_bot;
+        phbs_io_bot += size;
+
+        return virt_addr;
+}
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c
new file mode 100644
index 000000000000..cef9e83cc7e9
--- /dev/null
+++ b/arch/powerpc/mm/ppc_mmu_32.c
@@ -0,0 +1,285 @@
+/*
+ * This file contains the routines for handling the MMU on those
+ * PowerPC implementations where the MMU substantially follows the
+ * architecture specification.  This includes the 6xx, 7xx, 7xxx,
+ * 8260, and POWER3 implementations but excludes the 8xx and 4xx.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/highmem.h>
+
+#include <asm/prom.h>
+#include <asm/mmu.h>
+#include <asm/machdep.h>
+#include <asm/lmb.h>
+
+#include "mmu_decl.h"
+
+PTE *Hash, *Hash_end;
+unsigned long Hash_size, Hash_mask;
+unsigned long _SDR1;
+
+union ubat {                    /* BAT register values to be loaded */
+        BAT     bat;
+#ifdef CONFIG_PPC64BRIDGE
+        u64     word[2];
+#else
+        u32     word[2];
+#endif
+} BATS[4][2];                   /* 4 pairs of IBAT, DBAT */
+
+struct batrange {               /* stores address ranges mapped by BATs */
+        unsigned long start;
+        unsigned long limit;
+        unsigned long phys;
+} bat_addrs[4];
+
+/*
+ * Return PA for this VA if it is mapped by a BAT, or 0
+ */
+unsigned long v_mapped_by_bats(unsigned long va)
+{
+        int b;
+        for (b = 0; b < 4; ++b)
+                if (va >= bat_addrs[b].start && va < bat_addrs[b].limit)
+                        return bat_addrs[b].phys + (va - bat_addrs[b].start);
+        return 0;
+}
+
+/*
+ * Return VA for a given PA or 0 if not mapped
+ */
+unsigned long p_mapped_by_bats(unsigned long pa)
+{
+        int b;
+        for (b = 0; b < 4; ++b)
+                if (pa >= bat_addrs[b].phys
+                    && pa < (bat_addrs[b].limit-bat_addrs[b].start)
+                              +bat_addrs[b].phys)
+                        return bat_addrs[b].start+(pa-bat_addrs[b].phys);
+        return 0;
+}
+
+unsigned long __init mmu_mapin_ram(void)
+{
+#ifdef CONFIG_POWER4
+        return 0;
+#else
+        unsigned long tot, bl, done;
+        unsigned long max_size = (256<<20);
+        unsigned long align;
+
+        if (__map_without_bats)
+                return 0;
+
+        /* Set up BAT2 and if necessary BAT3 to cover RAM. */
+
+        /* Make sure we don't map a block larger than the
+           smallest alignment of the physical address. */
+        /* alignment of PPC_MEMSTART */
+        align = ~(PPC_MEMSTART-1) & PPC_MEMSTART;
+        /* set BAT block size to MIN(max_size, align) */
+        if (align && align < max_size)
+                max_size = align;
+
+        tot = total_lowmem;
+        for (bl = 128<<10; bl < max_size; bl <<= 1) {
+                if (bl * 2 > tot)
+                        break;
+        }
+
+        setbat(2, KERNELBASE, PPC_MEMSTART, bl, _PAGE_RAM);
+        done = (unsigned long)bat_addrs[2].limit - KERNELBASE + 1;
+        if ((done < tot) && !bat_addrs[3].limit) {
+                /* use BAT3 to cover a bit more */
+                tot -= done;
+                for (bl = 128<<10; bl < max_size; bl <<= 1)
+                        if (bl * 2 > tot)
+                                break;
+                setbat(3, KERNELBASE+done, PPC_MEMSTART+done, bl, _PAGE_RAM);
+                done = (unsigned long)bat_addrs[3].limit - KERNELBASE + 1;
+        }
+
+        return done;
+#endif
+}
+
+/*
+ * Set up one of the I/D BAT (block address translation) register pairs.
+ * The parameters are not checked; in particular size must be a power
+ * of 2 between 128k and 256M.
+ */
+void __init setbat(int index, unsigned long virt, unsigned long phys,
+                   unsigned int size, int flags)
+{
+        unsigned int bl;
+        int wimgxpp;
+        union ubat *bat = BATS[index];
+
+        if (((flags & _PAGE_NO_CACHE) == 0) &&
+            cpu_has_feature(CPU_FTR_NEED_COHERENT))
+                flags |= _PAGE_COHERENT;
+
+        bl = (size >> 17) - 1;
+        if (PVR_VER(mfspr(SPRN_PVR)) != 1) {
+                /* 603, 604, etc. */
+                /* Do DBAT first */
+                wimgxpp = flags & (_PAGE_WRITETHRU | _PAGE_NO_CACHE
+                                   | _PAGE_COHERENT | _PAGE_GUARDED);
+                wimgxpp |= (flags & _PAGE_RW)? BPP_RW: BPP_RX;
+                bat[1].word[0] = virt | (bl << 2) | 2; /* Vs=1, Vp=0 */
+                bat[1].word[1] = phys | wimgxpp;
+#ifndef CONFIG_KGDB /* want user access for breakpoints */
+                if (flags & _PAGE_USER)
+#endif
+                        bat[1].bat.batu.vp = 1;
+                if (flags & _PAGE_GUARDED) {
+                        /* G bit must be zero in IBATs */
+                        bat[0].word[0] = bat[0].word[1] = 0;
+                } else {
+                        /* make IBAT same as DBAT */
+                        bat[0] = bat[1];
+                }
+        } else {
+                /* 601 cpu */
+                if (bl > BL_8M)
+                        bl = BL_8M;
+                wimgxpp = flags & (_PAGE_WRITETHRU | _PAGE_NO_CACHE
+                                   | _PAGE_COHERENT);
+                wimgxpp |= (flags & _PAGE_RW)?
+                        ((flags & _PAGE_USER)? PP_RWRW: PP_RWXX): PP_RXRX;
+                bat->word[0] = virt | wimgxpp | 4;      /* Ks=0, Ku=1 */
+                bat->word[1] = phys | bl | 0x40;        /* V=1 */
+        }
+
+        bat_addrs[index].start = virt;
+        bat_addrs[index].limit = virt + ((bl + 1) << 17) - 1;
+        bat_addrs[index].phys = phys;
+}
+
+/*
+ * Initialize the hash table and patch the instructions in hashtable.S.
+ */
+void __init MMU_init_hw(void)
+{
+        unsigned int hmask, mb, mb2;
+        unsigned int n_hpteg, lg_n_hpteg;
+
+        extern unsigned int hash_page_patch_A[];
+        extern unsigned int hash_page_patch_B[], hash_page_patch_C[];
+        extern unsigned int hash_page[];
+        extern unsigned int flush_hash_patch_A[], flush_hash_patch_B[];
+
+        if (!cpu_has_feature(CPU_FTR_HPTE_TABLE)) {
+                /*
+                 * Put a blr (procedure return) instruction at the
+                 * start of hash_page, since we can still get DSI
+                 * exceptions on a 603.
+                 */
+                hash_page[0] = 0x4e800020;
+                flush_icache_range((unsigned long) &hash_page[0],
+                                   (unsigned long) &hash_page[1]);
+                return;
+        }
+
+        if ( ppc_md.progress ) ppc_md.progress("hash:enter", 0x105);
+
+#ifdef CONFIG_PPC64BRIDGE
+#define LG_HPTEG_SIZE   7               /* 128 bytes per HPTEG */
+#define SDR1_LOW_BITS   (lg_n_hpteg - 11)
+#define MIN_N_HPTEG     2048            /* min 256kB hash table */
+#else
+#define LG_HPTEG_SIZE   6               /* 64 bytes per HPTEG */
+#define SDR1_LOW_BITS   ((n_hpteg - 1) >> 10)
+#define MIN_N_HPTEG     1024            /* min 64kB hash table */
+#endif
+
+        /*
+         * Allow 1 HPTE (1/8 HPTEG) for each page of memory.
+         * This is less than the recommended amount, but then
+         * Linux ain't AIX.
+         */
+        n_hpteg = total_memory / (PAGE_SIZE * 8);
+        if (n_hpteg < MIN_N_HPTEG)
+                n_hpteg = MIN_N_HPTEG;
+        lg_n_hpteg = __ilog2(n_hpteg);
+        if (n_hpteg & (n_hpteg - 1)) {
+                ++lg_n_hpteg;           /* round up if not power of 2 */
+                n_hpteg = 1 << lg_n_hpteg;
+        }
+        Hash_size = n_hpteg << LG_HPTEG_SIZE;
+
+        /*
+         * Find some memory for the hash table.
+         */
+        if ( ppc_md.progress ) ppc_md.progress("hash:find piece", 0x322);
+        Hash = __va(lmb_alloc_base(Hash_size, Hash_size,
+                                   __initial_memory_limit));
+        cacheable_memzero(Hash, Hash_size);
+        _SDR1 = __pa(Hash) | SDR1_LOW_BITS;
+
+        Hash_end = (PTE *) ((unsigned long)Hash + Hash_size);
+
+        printk("Total memory = %ldMB; using %ldkB for hash table (at %p)\n",
+               total_memory >> 20, Hash_size >> 10, Hash);
+
+
+        /*
+         * Patch up the instructions in hashtable.S:create_hpte
+         */
+        if ( ppc_md.progress ) ppc_md.progress("hash:patch", 0x345);
+        Hash_mask = n_hpteg - 1;
+        hmask = Hash_mask >> (16 - LG_HPTEG_SIZE);
+        mb2 = mb = 32 - LG_HPTEG_SIZE - lg_n_hpteg;
+        if (lg_n_hpteg > 16)
+                mb2 = 16 - LG_HPTEG_SIZE;
+
+        hash_page_patch_A[0] = (hash_page_patch_A[0] & ~0xffff)
+                | ((unsigned int)(Hash) >> 16);
+        hash_page_patch_A[1] = (hash_page_patch_A[1] & ~0x7c0) | (mb << 6);
+        hash_page_patch_A[2] = (hash_page_patch_A[2] & ~0x7c0) | (mb2 << 6);
+        hash_page_patch_B[0] = (hash_page_patch_B[0] & ~0xffff) | hmask;
+        hash_page_patch_C[0] = (hash_page_patch_C[0] & ~0xffff) | hmask;
+
+        /*
+         * Ensure that the locations we've patched have been written
+         * out from the data cache and invalidated in the instruction
+         * cache, on those machines with split caches.
+         */
+        flush_icache_range((unsigned long) &hash_page_patch_A[0],
+                           (unsigned long) &hash_page_patch_C[1]);
+
+        /*
+         * Patch up the instructions in hashtable.S:flush_hash_page
+         */
+        flush_hash_patch_A[0] = (flush_hash_patch_A[0] & ~0xffff)
+                | ((unsigned int)(Hash) >> 16);
+        flush_hash_patch_A[1] = (flush_hash_patch_A[1] & ~0x7c0) | (mb << 6);
+        flush_hash_patch_A[2] = (flush_hash_patch_A[2] & ~0x7c0) | (mb2 << 6);
+        flush_hash_patch_B[0] = (flush_hash_patch_B[0] & ~0xffff) | hmask;
+        flush_icache_range((unsigned long) &flush_hash_patch_A[0],
+                           (unsigned long) &flush_hash_patch_B[1]);
+
+        if ( ppc_md.progress ) ppc_md.progress("hash:done", 0x205);
+}
diff --git a/arch/ppc64/mm/slb.c b/arch/powerpc/mm/slb.c
index 0473953f6a37..0473953f6a37 100644
--- a/arch/ppc64/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
diff --git a/arch/ppc64/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index a3a03da503bc..a3a03da503bc 100644
--- a/arch/ppc64/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
diff --git a/arch/ppc64/mm/stab.c b/arch/powerpc/mm/stab.c
index 1b83f002bf27..1b83f002bf27 100644
--- a/arch/ppc64/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
diff --git a/arch/powerpc/mm/tlb_32.c b/arch/powerpc/mm/tlb_32.c
new file mode 100644
index 000000000000..6c3dc3c44c86
--- /dev/null
+++ b/arch/powerpc/mm/tlb_32.c
@@ -0,0 +1,183 @@
+/*
+ * This file contains the routines for TLB flushing.
+ * On machines where the MMU uses a hash table to store virtual to
+ * physical translations, these routines flush entries from the
+ * hash table also.
+ *  -- paulus
+ *
+ *  Derived from arch/ppc/mm/init.c:
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
+ *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
+ *    Copyright (C) 1996 Paul Mackerras
+ *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
+ *
+ *  Derived from "arch/i386/mm/init.c"
+ *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/highmem.h>
+#include <asm/tlbflush.h>
+#include <asm/tlb.h>
+
+#include "mmu_decl.h"
+
+/*
+ * Called when unmapping pages to flush entries from the TLB/hash table.
+ */
+void flush_hash_entry(struct mm_struct *mm, pte_t *ptep, unsigned long addr)
+{
+        unsigned long ptephys;
+
+        if (Hash != 0) {
+                ptephys = __pa(ptep) & PAGE_MASK;
+                flush_hash_pages(mm->context, addr, ptephys, 1);
+        }
+}
+
+/*
+ * Called by ptep_set_access_flags, must flush on CPUs for which the
+ * DSI handler can't just "fixup" the TLB on a write fault
+ */
+void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr)
+{
+        if (Hash != 0)
+                return;
+        _tlbie(addr);
+}
+
+/*
+ * Called at the end of a mmu_gather operation to make sure the
+ * TLB flush is completely done.
+ */
+void tlb_flush(struct mmu_gather *tlb)
+{
+        if (Hash == 0) {
+                /*
+                 * 603 needs to flush the whole TLB here since
+                 * it doesn't use a hash table.
+                 */
+                _tlbia();
+        }
+}
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_range(vma, start, end) flushes a range of pages
+ *  - flush_tlb_kernel_range(start, end) flushes kernel pages
+ *
+ * since the hardware hash table functions as an extension of the
+ * tlb as far as the linux tables are concerned, flush it too.
+ *    -- Cort
+ */
+
+/*
+ * 750 SMP is a Bad Idea because the 750 doesn't broadcast all
+ * the cache operations on the bus.  Hence we need to use an IPI
+ * to get the other CPU(s) to invalidate their TLBs.
+ */
+#ifdef CONFIG_SMP_750
+#define FINISH_FLUSH    smp_send_tlb_invalidate(0)
+#else
+#define FINISH_FLUSH    do { } while (0)
+#endif
+
+static void flush_range(struct mm_struct *mm, unsigned long start,
+                        unsigned long end)
+{
+        pmd_t *pmd;
+        unsigned long pmd_end;
+        int count;
+        unsigned int ctx = mm->context;
+
+        if (Hash == 0) {
+                _tlbia();
+                return;
+        }
+        start &= PAGE_MASK;
+        if (start >= end)
+                return;
+        end = (end - 1) | ~PAGE_MASK;
+        pmd = pmd_offset(pgd_offset(mm, start), start);
+        for (;;) {
+                pmd_end = ((start + PGDIR_SIZE) & PGDIR_MASK) - 1;
+                if (pmd_end > end)
+                        pmd_end = end;
+                if (!pmd_none(*pmd)) {
+                        count = ((pmd_end - start) >> PAGE_SHIFT) + 1;
+                        flush_hash_pages(ctx, start, pmd_val(*pmd), count);
+                }
+                if (pmd_end == end)
+                        break;
+                start = pmd_end + 1;
+                ++pmd;
+        }
+}
+
+/*
+ * Flush kernel TLB entries in the given range
+ */
+void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+        flush_range(&init_mm, start, end);
+        FINISH_FLUSH;
+}
+
+/*
+ * Flush all the (user) entries for the address space described by mm.
+ */
+void flush_tlb_mm(struct mm_struct *mm)
+{
+        struct vm_area_struct *mp;
+
+        if (Hash == 0) {
+                _tlbia();
+                return;
+        }
+
+        for (mp = mm->mmap; mp != NULL; mp = mp->vm_next)
+                flush_range(mp->vm_mm, mp->vm_start, mp->vm_end);
+        FINISH_FLUSH;
+}
+
+void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
+{
+        struct mm_struct *mm;
+        pmd_t *pmd;
+
+        if (Hash == 0) {
+                _tlbie(vmaddr);
+                return;
+        }
+        mm = (vmaddr < TASK_SIZE)? vma->vm_mm: &init_mm;
+        pmd = pmd_offset(pgd_offset(mm, vmaddr), vmaddr);
+        if (!pmd_none(*pmd))
+                flush_hash_pages(mm->context, vmaddr, pmd_val(*pmd), 1);
+        FINISH_FLUSH;
+}
+
+/*
+ * For each address in the range, find the pte for the address
+ * and check _PAGE_HASHPTE bit; if it is set, find and destroy
+ * the corresponding HPTE.
+ */
+void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+                     unsigned long end)
+{
+        flush_range(vma->vm_mm, start, end);
+        FINISH_FLUSH;
+}
diff --git a/arch/ppc64/mm/tlb.c b/arch/powerpc/mm/tlb_64.c
index 21fbffb23a43..09ab81a10f4f 100644
--- a/arch/ppc64/mm/tlb.c
+++ b/arch/powerpc/mm/tlb_64.c
@@ -128,12 +128,10 @@ void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf)
 void hpte_update(struct mm_struct *mm, unsigned long addr,
                  unsigned long pte, int wrprot)
 {
-        int i;
-        unsigned long context = 0;
         struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
+        unsigned long vsid;
+        int i;
 
-        if (REGION_ID(addr) == USER_REGION_ID)
-                context = mm->context.id;
         i = batch->index;
 
         /*
@@ -143,19 +141,21 @@ void hpte_update(struct mm_struct *mm, unsigned long addr,
          * up scanning and resetting referenced bits then our batch context
          * will change mid stream.
          */
-        if (i != 0 && (context != batch->context ||
-                       batch->large != pte_huge(pte))) {
+        if (i != 0 && (mm != batch->mm || batch->large != pte_huge(pte))) {
                 flush_tlb_pending();
                 i = 0;
         }
-
         if (i == 0) {
-                batch->context = context;
                 batch->mm = mm;
                 batch->large = pte_huge(pte);
         }
+        if (addr < KERNELBASE) {
+                vsid = get_vsid(mm->context.id, addr);
+                WARN_ON(vsid == 0);
+        } else
+                vsid = get_kernel_vsid(addr);
+        batch->vaddr[i] = (vsid << 28 ) | (addr & 0x0fffffff);
         batch->pte[i] = __pte(pte);
-        batch->addr[i] = addr;
         batch->index = ++i;
         if (i >= PPC64_TLB_BATCH_NR)
                 flush_tlb_pending();
@@ -177,10 +177,9 @@ void __flush_tlb_pending(struct ppc64_tlb_batch *batch)
                 local = 1;
 
         if (i == 1)
-                flush_hash_page(batch->context, batch->addr[0], batch->pte[0],
-                                local);
+                flush_hash_page(batch->vaddr[0], batch->pte[0], local);
         else
-                flush_hash_range(batch->context, i, local);
+                flush_hash_range(i, local);
         batch->index = 0;
         put_cpu();
 }
diff --git a/arch/ppc/oprofile/Kconfig b/arch/powerpc/oprofile/Kconfig
index 19d37730b664..19d37730b664 100644
--- a/arch/ppc/oprofile/Kconfig
+++ b/arch/powerpc/oprofile/Kconfig
diff --git a/arch/ppc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile
index e2218d32a4eb..0782d0cca89c 100644
--- a/arch/ppc/oprofile/Makefile
+++ b/arch/powerpc/oprofile/Makefile
@@ -7,8 +7,5 @@ DRIVER_OBJS := $(addprefix ../../../drivers/oprofile/, \
                 timer_int.o )
 
 oprofile-y := $(DRIVER_OBJS) common.o
-
-ifeq ($(CONFIG_FSL_BOOKE),y)
-        oprofile-y += op_model_fsl_booke.o
-endif
-
+oprofile-$(CONFIG_PPC64) += op_model_rs64.o op_model_power4.o
+oprofile-$(CONFIG_FSL_BOOKE) += op_model_fsl_booke.o
diff --git a/arch/ppc64/oprofile/common.c b/arch/powerpc/oprofile/common.c
index e5f572710aa0..af2c05d20ba5 100644
--- a/arch/ppc64/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -1,5 +1,9 @@
 /*
+ * PPC 64 oprofile support:
  * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
+ * PPC 32 oprofile support: (based on PPC 64 support)
+ * Copyright (C) Freescale Semiconductor, Inc 2004
+ *      Author: Andy Fleming
  *
  * Based on alpha version.
  *
@@ -10,6 +14,9 @@
  */
 
 #include <linux/oprofile.h>
+#ifndef __powerpc64__
+#include <linux/slab.h>
+#endif /* ! __powerpc64__ */
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
@@ -19,17 +26,21 @@
 #include <asm/cputable.h>
 #include <asm/oprofile_impl.h>
 
-static struct op_ppc64_model *model;
+static struct op_powerpc_model *model;
 
 static struct op_counter_config ctr[OP_MAX_COUNTER];
 static struct op_system_config sys;
 
+#ifndef __powerpc64__
+static char *cpu_type;
+#endif /* ! __powerpc64__ */
+
 static void op_handle_interrupt(struct pt_regs *regs)
 {
         model->handle_interrupt(regs, ctr);
 }
 
-static int op_ppc64_setup(void)
+static int op_powerpc_setup(void)
 {
         int err;
 
@@ -42,41 +53,49 @@ static int op_ppc64_setup(void)
         model->reg_setup(ctr, &sys, model->num_counters);
 
         /* Configure the registers on all cpus.  */
+#ifdef __powerpc64__
         on_each_cpu(model->cpu_setup, NULL, 0, 1);
+#else /* __powerpc64__ */
+#if 0
+        /* FIXME: Make multi-cpu work */
+        on_each_cpu(model->reg_setup, NULL, 0, 1);
+#endif
+#endif /* __powerpc64__ */
 
         return 0;
 }
 
-static void op_ppc64_shutdown(void)
+static void op_powerpc_shutdown(void)
 {
         release_pmc_hardware();
 }
 
-static void op_ppc64_cpu_start(void *dummy)
+static void op_powerpc_cpu_start(void *dummy)
 {
         model->start(ctr);
 }
 
-static int op_ppc64_start(void)
+static int op_powerpc_start(void)
 {
-        on_each_cpu(op_ppc64_cpu_start, NULL, 0, 1);
+        on_each_cpu(op_powerpc_cpu_start, NULL, 0, 1);
         return 0;
 }
 
-static inline void op_ppc64_cpu_stop(void *dummy)
+static inline void op_powerpc_cpu_stop(void *dummy)
 {
         model->stop();
 }
 
-static void op_ppc64_stop(void)
+static void op_powerpc_stop(void)
 {
-        on_each_cpu(op_ppc64_cpu_stop, NULL, 0, 1);
+        on_each_cpu(op_powerpc_cpu_stop, NULL, 0, 1);
 }
 
-static int op_ppc64_create_files(struct super_block *sb, struct dentry *root)
+static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 {
         int i;
 
+#ifdef __powerpc64__
         /*
          * There is one mmcr0, mmcr1 and mmcra for setting the events for
          * all of the counters.
@@ -84,6 +103,7 @@ static int op_ppc64_create_files(struct super_block *sb, struct dentry *root)
         oprofilefs_create_ulong(sb, root, "mmcr0", &sys.mmcr0);
         oprofilefs_create_ulong(sb, root, "mmcr1", &sys.mmcr1);
         oprofilefs_create_ulong(sb, root, "mmcra", &sys.mmcra);
+#endif /* __powerpc64__ */
 
         for (i = 0; i < model->num_counters; ++i) {
                 struct dentry *dir;
@@ -95,44 +115,70 @@ static int op_ppc64_create_files(struct super_block *sb, struct dentry *root)
                 oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
                 oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
                 oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
+#ifdef __powerpc64__
                 /*
                  * We dont support per counter user/kernel selection, but
                  * we leave the entries because userspace expects them
                  */
+#endif /* __powerpc64__ */
                 oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
                 oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
+
+#ifndef __powerpc64__
+                /* FIXME: Not sure if this is used */
+#endif /* ! __powerpc64__ */
                 oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
         }
 
         oprofilefs_create_ulong(sb, root, "enable_kernel", &sys.enable_kernel);
         oprofilefs_create_ulong(sb, root, "enable_user", &sys.enable_user);
+#ifdef __powerpc64__
         oprofilefs_create_ulong(sb, root, "backtrace_spinlocks",
                                 &sys.backtrace_spinlocks);
+#endif /* __powerpc64__ */
 
         /* Default to tracing both kernel and user */
         sys.enable_kernel = 1;
         sys.enable_user = 1;
-
+#ifdef __powerpc64__
         /* Turn on backtracing through spinlocks by default */
         sys.backtrace_spinlocks = 1;
+#endif /* __powerpc64__ */
 
         return 0;
 }
 
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
+#ifndef __powerpc64__
+#ifdef CONFIG_FSL_BOOKE
+        model = &op_model_fsl_booke;
+#else
+        return -ENODEV;
+#endif
+
+        cpu_type = kmalloc(32, GFP_KERNEL);
+        if (NULL == cpu_type)
+                return -ENOMEM;
+
+        sprintf(cpu_type, "ppc/%s", cur_cpu_spec->cpu_name);
+
+        model->num_counters = cur_cpu_spec->num_pmcs;
+
+        ops->cpu_type = cpu_type;
+#else /* __powerpc64__ */
         if (!cur_cpu_spec->oprofile_model || !cur_cpu_spec->oprofile_cpu_type)
                 return -ENODEV;
-
         model = cur_cpu_spec->oprofile_model;
         model->num_counters = cur_cpu_spec->num_pmcs;
 
         ops->cpu_type = cur_cpu_spec->oprofile_cpu_type;
-        ops->create_files = op_ppc64_create_files;
-        ops->setup = op_ppc64_setup;
-        ops->shutdown = op_ppc64_shutdown;
-        ops->start = op_ppc64_start;
-        ops->stop = op_ppc64_stop;
+#endif /* __powerpc64__ */
+        ops->create_files = op_powerpc_create_files;
+        ops->setup = op_powerpc_setup;
+        ops->shutdown = op_powerpc_shutdown;
+        ops->start = op_powerpc_start;
+        ops->stop = op_powerpc_stop;
 
         printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
                ops->cpu_type);
@@ -142,4 +188,8 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 
 void oprofile_arch_exit(void)
 {
+#ifndef __powerpc64__
+        kfree(cpu_type);
+        cpu_type = NULL;
+#endif /* ! __powerpc64__ */
 }
diff --git a/arch/ppc/oprofile/op_model_fsl_booke.c b/arch/powerpc/oprofile/op_model_fsl_booke.c
index fc9c859358c6..86124a94c9af 100644
--- a/arch/ppc/oprofile/op_model_fsl_booke.c
+++ b/arch/powerpc/oprofile/op_model_fsl_booke.c
@@ -24,9 +24,8 @@
 #include <asm/cputable.h>
 #include <asm/reg_booke.h>
 #include <asm/page.h>
-#include <asm/perfmon.h>
-
-#include "op_impl.h"
+#include <asm/pmc.h>
+#include <asm/oprofile_impl.h>
 
 static unsigned long reset_value[OP_MAX_COUNTER];
 
@@ -176,7 +175,7 @@ static void fsl_booke_handle_interrupt(struct pt_regs *regs,
         pmc_start_ctrs(1);
 }
 
-struct op_ppc32_model op_model_fsl_booke = {
+struct op_powerpc_model op_model_fsl_booke = {
         .reg_setup              = fsl_booke_reg_setup,
         .start                  = fsl_booke_start,
         .stop                   = fsl_booke_stop,
diff --git a/arch/ppc64/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c
index 32b2bb5625fe..886449315847 100644
--- a/arch/ppc64/oprofile/op_model_power4.c
+++ b/arch/powerpc/oprofile/op_model_power4.c
@@ -300,7 +300,7 @@ static void power4_handle_interrupt(struct pt_regs *regs,
         mtspr(SPRN_MMCR0, mmcr0);
 }
 
-struct op_ppc64_model op_model_power4 = {
+struct op_powerpc_model op_model_power4 = {
         .reg_setup              = power4_reg_setup,
         .cpu_setup              = power4_cpu_setup,
         .start                  = power4_start,
diff --git a/arch/ppc64/oprofile/op_model_rs64.c b/arch/powerpc/oprofile/op_model_rs64.c
index 08c5b333f5c4..e010b85996e8 100644
--- a/arch/ppc64/oprofile/op_model_rs64.c
+++ b/arch/powerpc/oprofile/op_model_rs64.c
@@ -209,7 +209,7 @@ static void rs64_handle_interrupt(struct pt_regs *regs,
         mtspr(SPRN_MMCR0, mmcr0);
 }
 
-struct op_ppc64_model op_model_rs64 = {
+struct op_powerpc_model op_model_rs64 = {
         .reg_setup              = rs64_reg_setup,
         .cpu_setup              = rs64_cpu_setup,
         .start                  = rs64_start,
diff --git a/arch/powerpc/platforms/4xx/Kconfig b/arch/powerpc/platforms/4xx/Kconfig
new file mode 100644
index 000000000000..ed39d6a3d22a
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/Kconfig
@@ -0,0 +1,280 @@
+config 4xx
+        bool
+        depends on 40x || 44x
+        default y
+
+config WANT_EARLY_SERIAL
+        bool
+        select SERIAL_8250
+        default n
+
+menu "AMCC 4xx options"
+        depends on 4xx
+
+choice
+        prompt "Machine Type"
+        depends on 40x
+        default WALNUT
+
+config BUBINGA
+        bool "Bubinga"
+        select WANT_EARLY_SERIAL
+        help
+          This option enables support for the IBM 405EP evaluation board.
+
+config CPCI405
+        bool "CPCI405"
+        help
+          This option enables support for the CPCI405 board.
+
+config EP405
+        bool "EP405/EP405PC"
+        help
+          This option enables support for the EP405/EP405PC boards.
+
+config REDWOOD_5
+        bool "Redwood-5"
+        help
+          This option enables support for the IBM STB04 evaluation board.
+
+config REDWOOD_6
+        bool "Redwood-6"
+        help
+          This option enables support for the IBM STBx25xx evaluation board.
+
+config SYCAMORE
+        bool "Sycamore"
+        help
+          This option enables support for the IBM PPC405GPr evaluation board.
+
+config WALNUT
+        bool "Walnut"
+        help
+          This option enables support for the IBM PPC405GP evaluation board.
+
+config XILINX_ML300
+        bool "Xilinx-ML300"
+        help
+          This option enables support for the Xilinx ML300 evaluation board.
+
+endchoice
+
+choice
+        prompt "Machine Type"
+        depends on 44x
+        default EBONY
+
+config BAMBOO
+        bool "Bamboo"
+        select WANT_EARLY_SERIAL
+        help
+          This option enables support for the IBM PPC440EP evaluation board.
+
+config EBONY
+        bool "Ebony"
+        select WANT_EARLY_SERIAL
+        help
+          This option enables support for the IBM PPC440GP evaluation board.
+
+config LUAN
+        bool "Luan"
+        select WANT_EARLY_SERIAL
+        help
+          This option enables support for the IBM PPC440SP evaluation board.
+
+config OCOTEA
+        bool "Ocotea"
+        select WANT_EARLY_SERIAL
+        help
+          This option enables support for the IBM PPC440GX evaluation board.
+
+endchoice
+
+config EP405PC
+        bool "EP405PC Support"
+        depends on EP405
+
+
+# It's often necessary to know the specific 4xx processor type.
+# Fortunately, it is impled (so far) from the board type, so we
+# don't need to ask more redundant questions.
+config NP405H
+        bool
+        depends on ASH
+        default y
+
+config 440EP
+        bool
+        depends on BAMBOO
+        select PPC_FPU
+        default y
+
+config 440GP
+        bool
+        depends on EBONY
+        default y
+
+config 440GX
+        bool
+        depends on OCOTEA
+        default y
+
+config 440SP
+        bool
+        depends on LUAN
+        default y
+
+config 440
+        bool
+        depends on 440GP || 440SP || 440EP
+        default y
+
+config 440A
+        bool
+        depends on 440GX
+        default y
+
+config IBM440EP_ERR42
+        bool
+        depends on 440EP
+        default y
+
+# All 405-based cores up until the 405GPR and 405EP have this errata.
+config IBM405_ERR77
+        bool
+        depends on 40x && !403GCX && !405GPR && !405EP
+        default y
+
+# All 40x-based cores, up until the 405GPR and 405EP have this errata.
+config IBM405_ERR51
+        bool
+        depends on 40x && !405GPR && !405EP
+        default y
+
+config BOOKE
+        bool
+        depends on 44x
+        default y
+
+config IBM_OCP
+        bool
+        depends on ASH || BAMBOO || BUBINGA || CPCI405 || EBONY || EP405 || LUAN || OCOTEA || REDWOOD_5 || REDWOOD_6 || SYCAMORE || WALNUT
+        default y
+
+config XILINX_OCP
+        bool
+        depends on XILINX_ML300
+        default y
+
+config IBM_EMAC4
+        bool
+        depends on 440GX || 440SP
+        default y
+
+config BIOS_FIXUP
+        bool
+        depends on BUBINGA || EP405 || SYCAMORE || WALNUT
+        default y
+
+# OAK doesn't exist but wanted to keep this around for any future 403GCX boards
+config 403GCX
+        bool
+        depends OAK
+        default y
+
+config 405EP
+        bool
+        depends on BUBINGA
+        default y
+
+config 405GP
+        bool
+        depends on CPCI405 || EP405 || WALNUT
+        default y
+
+config 405GPR
+        bool
+        depends on SYCAMORE
+        default y
+
+config VIRTEX_II_PRO
+        bool
+        depends on XILINX_ML300
+        default y
+
+config STB03xxx
+        bool
+        depends on REDWOOD_5 || REDWOOD_6
+        default y
+
+config EMBEDDEDBOOT
+        bool
+        depends on EP405 || XILINX_ML300
+        default y
+
+config IBM_OPENBIOS
+        bool
+        depends on ASH || BUBINGA || REDWOOD_5 || REDWOOD_6 || SYCAMORE || WALNUT
+        default y
+
+config PPC4xx_DMA
+        bool "PPC4xx DMA controller support"
+        depends on 4xx
+
+config PPC4xx_EDMA
+        bool
+        depends on !STB03xxx && PPC4xx_DMA
+        default y
+
+config PPC_GEN550
+        bool
+        depends on 4xx
+        default y
+
+choice
+        prompt "TTYS0 device and default console"
+        depends on 40x
+        default UART0_TTYS0
+
+config UART0_TTYS0
+        bool "UART0"
+
+config UART0_TTYS1
+        bool "UART1"
+
+endchoice
+
+config SERIAL_SICC
+        bool "SICC Serial port support"
+        depends on STB03xxx
+
+config UART1_DFLT_CONSOLE
+        bool
+        depends on SERIAL_SICC && UART0_TTYS1
+        default y
+
+config SERIAL_SICC_CONSOLE
+        bool
+        depends on SERIAL_SICC && UART0_TTYS1
+        default y
+endmenu
+
+
+menu "IBM 40x options"
+        depends on 40x
+
+config SERIAL_SICC
+        bool "SICC Serial port"
+        depends on STB03xxx
+
+config UART1_DFLT_CONSOLE
+        bool
+        depends on SERIAL_SICC && UART0_TTYS1
+        default y
+
+config SERIAL_SICC_CONSOLE
+        bool
+        depends on SERIAL_SICC && UART0_TTYS1
+        default y
+
+endmenu
diff --git a/arch/powerpc/platforms/4xx/Makefile b/arch/powerpc/platforms/4xx/Makefile
new file mode 100644
index 000000000000..79ff6b1e887c
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/Makefile
@@ -0,0 +1 @@
+# empty makefile so make clean works
\ No newline at end of file
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
new file mode 100644
index 000000000000..c5bc2821d991
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -0,0 +1,86 @@
+config 85xx
+        bool
+        depends on E500
+        default y
+
+config PPC_INDIRECT_PCI_BE
+        bool
+        depends on 85xx
+        default y
+
+menu "Freescale 85xx options"
+        depends on E500
+
+choice
+        prompt "Machine Type"
+        depends on 85xx
+        default MPC8540_ADS
+
+config MPC8540_ADS
+        bool "Freescale MPC8540 ADS"
+        help
+          This option enables support for the MPC 8540 ADS evaluation board.
+
+config MPC8548_CDS
+        bool "Freescale MPC8548 CDS"
+        help
+          This option enablese support for the MPC8548 CDS evaluation board.
+
+config MPC8555_CDS
+        bool "Freescale MPC8555 CDS"
+        help
+          This option enablese support for the MPC8555 CDS evaluation board.
+
+config MPC8560_ADS
+        bool "Freescale MPC8560 ADS"
+        help
+          This option enables support for the MPC 8560 ADS evaluation board.
+
+config SBC8560
+        bool "WindRiver PowerQUICC III SBC8560"
+        help
+          This option enables support for the WindRiver PowerQUICC III 
+          SBC8560 board.
+
+config STX_GP3
+        bool "Silicon Turnkey Express GP3"
+        help
+          This option enables support for the Silicon Turnkey Express GP3
+          board.
+
+endchoice
+
+# It's often necessary to know the specific 85xx processor type.
+# Fortunately, it is implied (so far) from the board type, so we
+# don't need to ask more redundant questions.
+config MPC8540
+        bool
+        depends on MPC8540_ADS
+        default y
+
+config MPC8548
+        bool
+        depends on MPC8548_CDS
+        default y
+
+config MPC8555
+        bool
+        depends on MPC8555_CDS
+        default y
+
+config MPC8560
+        bool
+        depends on SBC8560 || MPC8560_ADS || STX_GP3
+        default y
+
+config 85xx_PCI2
+        bool "Supprt for 2nd PCI host controller"
+        depends on MPC8555_CDS
+        default y
+
+config PPC_GEN550
+        bool
+        depends on MPC8540 || SBC8560 || MPC8555
+        default y
+
+endmenu
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
new file mode 100644
index 000000000000..6407197ffd89
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -0,0 +1 @@
+# empty makefile so make clean works
diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
new file mode 100644
index 000000000000..c8c0ba3cf8e8
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -0,0 +1,352 @@
+config FADS
+        bool
+
+choice
+        prompt "8xx Machine Type"
+        depends on 8xx
+        default RPXLITE
+
+config RPXLITE
+        bool "RPX-Lite"
+        ---help---
+          Single-board computers based around the PowerPC MPC8xx chips and
+          intended for embedded applications.  The following types are
+          supported:
+
+          RPX-Lite:
+          Embedded Planet RPX Lite. PC104 form-factor SBC based on the MPC823.
+
+          RPX-Classic:
+          Embedded Planet RPX Classic Low-fat. Credit-card-size SBC based on
+          the MPC 860
+
+          BSE-IP:
+          Bright Star Engineering ip-Engine.
+
+          TQM823L:
+          TQM850L:
+          TQM855L:
+          TQM860L:
+          MPC8xx based family of mini modules, half credit card size,
+          up to 64 MB of RAM, 8 MB Flash, (Fast) Ethernet, 2 x serial ports,
+          2 x CAN bus interface, ...
+          Manufacturer: TQ Components, www.tq-group.de
+          Date of Release: October (?) 1999
+          End of Life: not yet :-)
+          URL:
+          - module: <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>
+          - starter kit: <http://www.denx.de/PDF/STK8xxLHWM201.pdf>
+          - images: <http://www.denx.de/embedded-ppc-en.html>
+
+          FPS850L:
+          FingerPrint Sensor System (based on TQM850L)
+          Manufacturer: IKENDI AG, <http://www.ikendi.com/>
+          Date of Release: November 1999
+          End of life: end 2000 ?
+          URL: see TQM850L
+
+          IVMS8:
+          MPC860 based board used in the "Integrated Voice Mail System",
+          Small Version (8 voice channels)
+          Manufacturer: Speech Design, <http://www.speech-design.de/>
+          Date of Release: December 2000 (?)
+          End of life: -
+          URL: <http://www.speech-design.de/>
+
+          IVML24:
+          MPC860 based board used in the "Integrated Voice Mail System",
+          Large Version (24 voice channels)
+          Manufacturer: Speech Design, <http://www.speech-design.de/>
+          Date of Release: March 2001  (?)
+          End of life: -
+          URL: <http://www.speech-design.de/>
+
+          HERMES:
+          Hermes-Pro ISDN/LAN router with integrated 8 x hub
+          Manufacturer: Multidata Gesellschaft fur Datentechnik und Informatik
+          <http://www.multidata.de/>
+          Date of Release: 2000 (?)
+          End of life: -
+          URL: <http://www.multidata.de/english/products/hpro.htm>
+
+          IP860:
+          VMEBus IP (Industry Pack) carrier board with MPC860
+          Manufacturer: MicroSys GmbH, <http://www.microsys.de/>
+          Date of Release: ?
+          End of life: -
+          URL: <http://www.microsys.de/html/ip860.html>
+
+          PCU_E:
+          PCU = Peripheral Controller Unit, Extended
+          Manufacturer: Siemens AG, ICN (Information and Communication Networks)
+                <http://www.siemens.de/page/1,3771,224315-1-999_2_226207-0,00.html>
+          Date of Release: April 2001
+          End of life: August 2001
+          URL: n. a.
+
+config RPXCLASSIC
+        bool "RPX-Classic"
+        help
+          The RPX-Classic is a single-board computer based on the Motorola
+          MPC860.  It features 16MB of DRAM and a variable amount of flash,
+          I2C EEPROM, thermal monitoring, a PCMCIA slot, a DIP switch and two
+          LEDs.  Variants with Ethernet ports exist.  Say Y here to support it
+          directly.
+
+config BSEIP
+        bool "BSE-IP"
+        help
+          Say Y here to support the Bright Star Engineering ipEngine SBC.
+          This is a credit-card-sized device featuring a MPC823 processor,
+          26MB DRAM, 4MB flash, Ethernet, a 16K-gate FPGA, USB, an LCD/video
+          controller, and two RS232 ports.
+
+config MPC8XXFADS
+        bool "FADS"
+        select FADS
+
+config MPC86XADS
+        bool "MPC86XADS"
+        help
+          MPC86x Application Development System by Freescale Semiconductor.
+          The MPC86xADS is meant to serve as a platform for s/w and h/w
+          development around the MPC86X processor families.
+        select FADS
+
+config MPC885ADS
+        bool "MPC885ADS"
+        help
+          Freescale Semiconductor MPC885 Application Development System (ADS).
+          Also known as DUET.
+          The MPC885ADS is meant to serve as a platform for s/w and h/w
+          development around the MPC885 processor family.
+
+config TQM823L
+        bool "TQM823L"
+        help
+          Say Y here to support the TQM823L, one of an MPC8xx-based family of
+          mini SBCs (half credit-card size) from TQ Components first released
+          in late 1999.  Technical references are at
+          <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
+          <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
+          <http://www.denx.de/embedded-ppc-en.html>.
+
+config TQM850L
+        bool "TQM850L"
+        help
+          Say Y here to support the TQM850L, one of an MPC8xx-based family of
+          mini SBCs (half credit-card size) from TQ Components first released
+          in late 1999.  Technical references are at
+          <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
+          <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
+          <http://www.denx.de/embedded-ppc-en.html>.
+
+config TQM855L
+        bool "TQM855L"
+        help
+          Say Y here to support the TQM855L, one of an MPC8xx-based family of
+          mini SBCs (half credit-card size) from TQ Components first released
+          in late 1999.  Technical references are at
+          <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
+          <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
+          <http://www.denx.de/embedded-ppc-en.html>.
+
+config TQM860L
+        bool "TQM860L"
+        help
+          Say Y here to support the TQM860L, one of an MPC8xx-based family of
+          mini SBCs (half credit-card size) from TQ Components first released
+          in late 1999.  Technical references are at
+          <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
+          <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
+          <http://www.denx.de/embedded-ppc-en.html>.
+
+config FPS850L
+        bool "FPS850L"
+
+config IVMS8
+        bool "IVMS8"
+        help
+          Say Y here to support the Integrated Voice-Mail Small 8-channel SBC
+          from Speech Design, released March 2001.  The manufacturer's website
+          is at <http://www.speech-design.de/>.
+
+config IVML24
+        bool "IVML24"
+        help
+          Say Y here to support the Integrated Voice-Mail Large 24-channel SBC
+          from Speech Design, released March 2001.  The manufacturer's website
+          is at <http://www.speech-design.de/>.
+
+config HERMES_PRO
+        bool "HERMES"
+
+config IP860
+        bool "IP860"
+
+config LWMON
+        bool "LWMON"
+
+config PCU_E
+        bool "PCU_E"
+
+config CCM
+        bool "CCM"
+
+config LANTEC
+        bool "LANTEC"
+
+config MBX
+        bool "MBX"
+        help
+          MBX is a line of Motorola single-board computer based around the
+          MPC821 and MPC860 processors, and intended for embedded-controller
+          applications.  Say Y here to support these boards directly.
+
+config WINCEPT
+        bool "WinCept"
+        help
+          The Wincept 100/110 is a Motorola single-board computer based on the
+          MPC821 PowerPC, introduced in 1998 and designed to be used in
+          thin-client machines.  Say Y to support it directly.
+
+endchoice
+
+#
+# MPC8xx Communication options
+#
+
+menu "MPC8xx CPM Options"
+        depends on 8xx
+
+config SCC_ENET
+        bool "CPM SCC Ethernet"
+        depends on NET_ETHERNET
+        help
+          Enable Ethernet support via the Motorola MPC8xx serial
+          communications controller.
+
+choice
+        prompt "SCC used for Ethernet"
+        depends on SCC_ENET
+        default SCC1_ENET
+
+config SCC1_ENET
+        bool "SCC1"
+        help
+          Use MPC8xx serial communications controller 1 to drive Ethernet
+          (default).
+
+config SCC2_ENET
+        bool "SCC2"
+        help
+          Use MPC8xx serial communications controller 2 to drive Ethernet.
+
+config SCC3_ENET
+        bool "SCC3"
+        help
+          Use MPC8xx serial communications controller 3 to drive Ethernet.
+
+endchoice
+
+config FEC_ENET
+        bool "860T FEC Ethernet"
+        depends on NET_ETHERNET
+        help
+          Enable Ethernet support via the Fast Ethernet Controller (FCC) on
+          the Motorola MPC8260.
+
+config USE_MDIO
+        bool "Use MDIO for PHY configuration"
+        depends on FEC_ENET
+        help
+          On some boards the hardware configuration of the ethernet PHY can be
+          used without any software interaction over the MDIO interface, so
+          all MII code can be omitted. Say N here if unsure or if you don't
+          need link status reports.
+
+config  FEC_AM79C874
+        bool "Support AMD79C874 PHY"
+        depends on USE_MDIO
+
+config FEC_LXT970
+        bool "Support LXT970 PHY"
+        depends on USE_MDIO
+
+config FEC_LXT971
+        bool "Support LXT971 PHY"
+        depends on USE_MDIO
+        
+config FEC_QS6612
+        bool "Support QS6612 PHY"
+        depends on USE_MDIO
+        
+config ENET_BIG_BUFFERS
+        bool "Use Big CPM Ethernet Buffers"
+        depends on SCC_ENET || FEC_ENET
+        help
+          Allocate large buffers for MPC8xx Ethernet. Increases throughput
+          and decreases the likelihood of dropped packets, but costs memory.
+
+config HTDMSOUND
+        bool "Embedded Planet HIOX Audio"
+        depends on SOUND=y
+
+# This doesn't really belong here, but it is convenient to ask
+# 8xx specific questions.
+comment "Generic MPC8xx Options"
+
+config 8xx_COPYBACK
+        bool "Copy-Back Data Cache (else Writethrough)"
+        help
+          Saying Y here will cause the cache on an MPC8xx processor to be used
+          in Copy-Back mode.  If you say N here, it is used in Writethrough
+          mode.
+
+          If in doubt, say Y here.
+
+config 8xx_CPU6
+        bool "CPU6 Silicon Errata (860 Pre Rev. C)"
+        help
+          MPC860 CPUs, prior to Rev C have some bugs in the silicon, which
+          require workarounds for Linux (and most other OSes to work).  If you
+          get a BUG() very early in boot, this might fix the problem.  For
+          more details read the document entitled "MPC860 Family Device Errata
+          Reference" on Motorola's website.  This option also incurs a
+          performance hit.
+
+          If in doubt, say N here.
+
+choice
+        prompt "Microcode patch selection"
+        default NO_UCODE_PATCH
+        help
+          Help not implemented yet, coming soon.
+
+config NO_UCODE_PATCH
+        bool "None"
+
+config USB_SOF_UCODE_PATCH
+        bool "USB SOF patch"
+        help
+          Help not implemented yet, coming soon.
+
+config I2C_SPI_UCODE_PATCH
+        bool "I2C/SPI relocation patch"
+        help
+          Help not implemented yet, coming soon.
+
+config I2C_SPI_SMC1_UCODE_PATCH
+        bool "I2C/SPI/SMC1 relocation patch"
+        help
+          Help not implemented yet, coming soon.
+
+endchoice
+
+config UCODE_PATCH
+        bool
+        default y
+        depends on !NO_UCODE_PATCH
+
+endmenu
+
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
new file mode 100644
index 000000000000..172c0db63504
--- /dev/null
+++ b/arch/powerpc/platforms/Makefile
@@ -0,0 +1,13 @@
+ifeq ($(CONFIG_PPC_MERGE),y)
+obj-$(CONFIG_PPC_PMAC)          += powermac/
+else
+ifeq ($(CONFIG_PPC64),y)
+obj-$(CONFIG_PPC_PMAC)          += powermac/
+endif
+endif
+obj-$(CONFIG_PPC_CHRP)          += chrp/
+obj-$(CONFIG_4xx)               += 4xx/
+obj-$(CONFIG_85xx)              += 85xx/
+obj-$(CONFIG_PPC_PSERIES)       += pseries/
+obj-$(CONFIG_PPC_ISERIES)       += iseries/
+obj-$(CONFIG_PPC_MAPLE)         += maple/
diff --git a/arch/powerpc/platforms/apus/Kconfig b/arch/powerpc/platforms/apus/Kconfig
new file mode 100644
index 000000000000..6bde3bffed86
--- /dev/null
+++ b/arch/powerpc/platforms/apus/Kconfig
@@ -0,0 +1,130 @@
+
+config AMIGA
+        bool
+        depends on APUS
+        default y
+        help
+          This option enables support for the Amiga series of computers.
+
+config ZORRO
+        bool
+        depends on APUS
+        default y
+        help
+          This enables support for the Zorro bus in the Amiga. If you have
+          expansion cards in your Amiga that conform to the Amiga
+          AutoConfig(tm) specification, say Y, otherwise N. Note that even
+          expansion cards that do not fit in the Zorro slots but fit in e.g.
+          the CPU slot may fall in this category, so you have to say Y to let
+          Linux use these.
+
+config ABSTRACT_CONSOLE
+        bool
+        depends on APUS
+        default y
+
+config APUS_FAST_EXCEPT
+        bool
+        depends on APUS
+        default y
+
+config AMIGA_PCMCIA
+        bool "Amiga 1200/600 PCMCIA support"
+        depends on APUS && EXPERIMENTAL
+        help
+          Include support in the kernel for pcmcia on Amiga 1200 and Amiga
+          600. If you intend to use pcmcia cards say Y; otherwise say N.
+
+config AMIGA_BUILTIN_SERIAL
+        tristate "Amiga builtin serial support"
+        depends on APUS
+        help
+          If you want to use your Amiga's built-in serial port in Linux,
+          answer Y.
+
+          To compile this driver as a module, choose M here.
+
+config GVPIOEXT
+        tristate "GVP IO-Extender support"
+        depends on APUS
+        help
+          If you want to use a GVP IO-Extender serial card in Linux, say Y.
+          Otherwise, say N.
+
+config GVPIOEXT_LP
+        tristate "GVP IO-Extender parallel printer support"
+        depends on GVPIOEXT
+        help
+          Say Y to enable driving a printer from the parallel port on your
+          GVP IO-Extender card, N otherwise.
+
+config GVPIOEXT_PLIP
+        tristate "GVP IO-Extender PLIP support"
+        depends on GVPIOEXT
+        help
+          Say Y to enable doing IP over the parallel port on your GVP
+          IO-Extender card, N otherwise.
+
+config MULTIFACE_III_TTY
+        tristate "Multiface Card III serial support"
+        depends on APUS
+        help
+          If you want to use a Multiface III card's serial port in Linux,
+          answer Y.
+
+          To compile this driver as a module, choose M here.
+
+config A2232
+        tristate "Commodore A2232 serial support (EXPERIMENTAL)"
+        depends on EXPERIMENTAL && APUS
+        ---help---
+          This option supports the 2232 7-port serial card shipped with the
+          Amiga 2000 and other Zorro-bus machines, dating from 1989.  At
+          a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
+          each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
+          ports were connected with 8 pin DIN connectors on the card bracket,
+          for which 8 pin to DB25 adapters were supplied. The card also had
+          jumpers internally to toggle various pinning configurations.
+
+          This driver can be built as a module; but then "generic_serial"
+          will also be built as a module. This has to be loaded before
+          "ser_a2232". If you want to do this, answer M here.
+
+config WHIPPET_SERIAL
+        tristate "Hisoft Whippet PCMCIA serial support"
+        depends on AMIGA_PCMCIA
+        help
+          HiSoft has a web page at <http://www.hisoft.co.uk/>, but there
+          is no listing for the Whippet in their Amiga section.
+
+config APNE
+        tristate "PCMCIA NE2000 support"
+        depends on AMIGA_PCMCIA
+        help
+          If you have a PCMCIA NE2000 compatible adapter, say Y.  Otherwise,
+          say N.
+
+          To compile this driver as a module, choose M here: the
+          module will be called apne.
+
+config SERIAL_CONSOLE
+        bool "Support for serial port console"
+        depends on APUS && (AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y)
+
+config HEARTBEAT
+        bool "Use power LED as a heartbeat"
+        depends on APUS
+        help
+          Use the power-on LED on your machine as a load meter.  The exact
+          behavior is platform-dependent, but normally the flash frequency is
+          a hyperbolic function of the 5-minute load average.
+
+config PROC_HARDWARE
+        bool "/proc/hardware support"
+        depends on APUS
+
+source "drivers/zorro/Kconfig"
+
+config PCI_PERMEDIA
+        bool "PCI for Permedia2"
+        depends on !4xx && !8xx && APUS
diff --git a/arch/powerpc/platforms/chrp/Makefile b/arch/powerpc/platforms/chrp/Makefile
new file mode 100644
index 000000000000..902feb1ac431
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/Makefile
@@ -0,0 +1,4 @@
+obj-y                           += setup.o time.o pegasos_eth.o
+obj-$(CONFIG_PCI)               += pci.o
+obj-$(CONFIG_SMP)               += smp.o
+obj-$(CONFIG_NVRAM)             += nvram.o
diff --git a/arch/powerpc/platforms/chrp/chrp.h b/arch/powerpc/platforms/chrp/chrp.h
new file mode 100644
index 000000000000..3a2057fa314a
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/chrp.h
@@ -0,0 +1,12 @@
+/*
+ * Declarations of CHRP platform-specific things.
+ */
+
+extern void chrp_nvram_init(void);
+extern void chrp_get_rtc_time(struct rtc_time *);
+extern int chrp_set_rtc_time(struct rtc_time *);
+extern void chrp_calibrate_decr(void);
+extern long chrp_time_init(void);
+
+extern void chrp_find_bridges(void);
+extern void chrp_event_scan(void);
diff --git a/arch/powerpc/platforms/chrp/nvram.c b/arch/powerpc/platforms/chrp/nvram.c
new file mode 100644
index 000000000000..4ac7125aa09c
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/nvram.c
@@ -0,0 +1,84 @@
+/*
+ *  c 2001 PPC 64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ * /dev/nvram driver for PPC
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include "chrp.h"
+
+static unsigned int nvram_size;
+static unsigned char nvram_buf[4];
+static DEFINE_SPINLOCK(nvram_lock);
+
+static unsigned char chrp_nvram_read(int addr)
+{
+        unsigned long done, flags;
+        unsigned char ret;
+
+        if (addr >= nvram_size) {
+                printk(KERN_DEBUG "%s: read addr %d > nvram_size %u\n",
+                       current->comm, addr, nvram_size);
+                return 0xff;
+        }
+        spin_lock_irqsave(&nvram_lock, flags);
+        if ((call_rtas("nvram-fetch", 3, 2, &done, addr, __pa(nvram_buf), 1) != 0) || 1 != done)
+                ret = 0xff;
+        else
+                ret = nvram_buf[0];
+        spin_unlock_irqrestore(&nvram_lock, flags);
+
+        return ret;
+}
+
+static void chrp_nvram_write(int addr, unsigned char val)
+{
+        unsigned long done, flags;
+
+        if (addr >= nvram_size) {
+                printk(KERN_DEBUG "%s: write addr %d > nvram_size %u\n",
+                       current->comm, addr, nvram_size);
+                return;
+        }
+        spin_lock_irqsave(&nvram_lock, flags);
+        nvram_buf[0] = val;
+        if ((call_rtas("nvram-store", 3, 2, &done, addr, __pa(nvram_buf), 1) != 0) || 1 != done)
+                printk(KERN_DEBUG "rtas IO error storing 0x%02x at %d", val, addr);
+        spin_unlock_irqrestore(&nvram_lock, flags);
+}
+
+void __init chrp_nvram_init(void)
+{
+        struct device_node *nvram;
+        unsigned int *nbytes_p, proplen;
+
+        nvram = of_find_node_by_type(NULL, "nvram");
+        if (nvram == NULL)
+                return;
+
+        nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+        if (nbytes_p == NULL || proplen != sizeof(unsigned int))
+                return;
+
+        nvram_size = *nbytes_p;
+
+        printk(KERN_INFO "CHRP nvram contains %u bytes\n", nvram_size);
+        of_node_put(nvram);
+
+        ppc_md.nvram_read_val = chrp_nvram_read;
+        ppc_md.nvram_write_val = chrp_nvram_write;
+
+        return;
+}
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
new file mode 100644
index 000000000000..82c429d487f3
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -0,0 +1,310 @@
+/*
+ * CHRP pci routines.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/hydra.h>
+#include <asm/prom.h>
+#include <asm/gg2.h>
+#include <asm/machdep.h>
+#include <asm/sections.h>
+#include <asm/pci-bridge.h>
+#include <asm/open_pic.h>
+#include <asm/grackle.h>
+#include <asm/rtas.h>
+
+/* LongTrail */
+void __iomem *gg2_pci_config_base;
+
+/*
+ * The VLSI Golden Gate II has only 512K of PCI configuration space, so we
+ * limit the bus number to 3 bits
+ */
+
+int gg2_read_config(struct pci_bus *bus, unsigned int devfn, int off,
+                           int len, u32 *val)
+{
+        volatile void __iomem *cfg_data;
+        struct pci_controller *hose = bus->sysdata;
+
+        if (bus->number > 7)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        /*
+         * Note: the caller has already checked that off is
+         * suitably aligned and that len is 1, 2 or 4.
+         */
+        cfg_data = hose->cfg_data + ((bus->number<<16) | (devfn<<8) | off);
+        switch (len) {
+        case 1:
+                *val =  in_8(cfg_data);
+                break;
+        case 2:
+                *val = in_le16(cfg_data);
+                break;
+        default:
+                *val = in_le32(cfg_data);
+                break;
+        }
+        return PCIBIOS_SUCCESSFUL;
+}
+
+int gg2_write_config(struct pci_bus *bus, unsigned int devfn, int off,
+                            int len, u32 val)
+{
+        volatile void __iomem *cfg_data;
+        struct pci_controller *hose = bus->sysdata;
+
+        if (bus->number > 7)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        /*
+         * Note: the caller has already checked that off is
+         * suitably aligned and that len is 1, 2 or 4.
+         */
+        cfg_data = hose->cfg_data + ((bus->number<<16) | (devfn<<8) | off);
+        switch (len) {
+        case 1:
+                out_8(cfg_data, val);
+                break;
+        case 2:
+                out_le16(cfg_data, val);
+                break;
+        default:
+                out_le32(cfg_data, val);
+                break;
+        }
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops gg2_pci_ops =
+{
+        gg2_read_config,
+        gg2_write_config
+};
+
+/*
+ * Access functions for PCI config space using RTAS calls.
+ */
+int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
+                     int len, u32 *val)
+{
+        struct pci_controller *hose = bus->sysdata;
+        unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
+                | (((bus->number - hose->first_busno) & 0xff) << 16)
+                | (hose->index << 24);
+        int ret = -1;
+        int rval;
+
+        rval = rtas_call(rtas_token("read-pci-config"), 2, 2, &ret, addr, len);
+        *val = ret;
+        return rval? PCIBIOS_DEVICE_NOT_FOUND: PCIBIOS_SUCCESSFUL;
+}
+
+int rtas_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
+                      int len, u32 val)
+{
+        struct pci_controller *hose = bus->sysdata;
+        unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
+                | (((bus->number - hose->first_busno) & 0xff) << 16)
+                | (hose->index << 24);
+        int rval;
+
+        rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
+                         addr, len, val);
+        return rval? PCIBIOS_DEVICE_NOT_FOUND: PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops rtas_pci_ops =
+{
+        rtas_read_config,
+        rtas_write_config
+};
+
+volatile struct Hydra __iomem *Hydra = NULL;
+
+int __init
+hydra_init(void)
+{
+        struct device_node *np;
+
+        np = find_devices("mac-io");
+        if (np == NULL || np->n_addrs == 0)
+                return 0;
+        Hydra = ioremap(np->addrs[0].address, np->addrs[0].size);
+        printk("Hydra Mac I/O at %lx\n", np->addrs[0].address);
+        printk("Hydra Feature_Control was %x",
+               in_le32(&Hydra->Feature_Control));
+        out_le32(&Hydra->Feature_Control, (HYDRA_FC_SCC_CELL_EN |
+                                           HYDRA_FC_SCSI_CELL_EN |
+                                           HYDRA_FC_SCCA_ENABLE |
+                                           HYDRA_FC_SCCB_ENABLE |
+                                           HYDRA_FC_ARB_BYPASS |
+                                           HYDRA_FC_MPIC_ENABLE |
+                                           HYDRA_FC_SLOW_SCC_PCLK |
+                                           HYDRA_FC_MPIC_IS_MASTER));
+        printk(", now %x\n", in_le32(&Hydra->Feature_Control));
+        return 1;
+}
+
+void __init
+chrp_pcibios_fixup(void)
+{
+        struct pci_dev *dev = NULL;
+        struct device_node *np;
+
+        /* PCI interrupts are controlled by the OpenPIC */
+        for_each_pci_dev(dev) {
+                np = pci_device_to_OF_node(dev);
+                if ((np != 0) && (np->n_intrs > 0) && (np->intrs[0].line != 0))
+                        dev->irq = np->intrs[0].line;
+                pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+        }
+}
+
+#define PRG_CL_RESET_VALID 0x00010000
+
+static void __init
+setup_python(struct pci_controller *hose, struct device_node *dev)
+{
+        u32 __iomem *reg;
+        u32 val;
+        unsigned long addr = dev->addrs[0].address;
+
+        setup_indirect_pci(hose, addr + 0xf8000, addr + 0xf8010);
+
+        /* Clear the magic go-slow bit */
+        reg = ioremap(dev->addrs[0].address + 0xf6000, 0x40);
+        val = in_be32(&reg[12]);
+        if (val & PRG_CL_RESET_VALID) {
+                out_be32(&reg[12], val & ~PRG_CL_RESET_VALID);
+                in_be32(&reg[12]);
+        }
+        iounmap(reg);
+}
+
+/* Marvell Discovery II based Pegasos 2 */
+static void __init setup_peg2(struct pci_controller *hose, struct device_node *dev)
+{
+        struct device_node *root = find_path_device("/");
+        struct device_node *rtas;
+
+        rtas = of_find_node_by_name (root, "rtas");
+        if (rtas) {
+                hose->ops = &rtas_pci_ops;
+        } else {
+                printk ("RTAS supporting Pegasos OF not found, please upgrade"
+                        " your firmware\n");
+        }
+        pci_assign_all_buses = 1;
+}
+
+void __init
+chrp_find_bridges(void)
+{
+        struct device_node *dev;
+        int *bus_range;
+        int len, index = -1;
+        struct pci_controller *hose;
+        unsigned int *dma;
+        char *model, *machine;
+        int is_longtrail = 0, is_mot = 0, is_pegasos = 0;
+        struct device_node *root = find_path_device("/");
+
+        /*
+         * The PCI host bridge nodes on some machines don't have
+         * properties to adequately identify them, so we have to
+         * look at what sort of machine this is as well.
+         */
+        machine = get_property(root, "model", NULL);
+        if (machine != NULL) {
+                is_longtrail = strncmp(machine, "IBM,LongTrail", 13) == 0;
+                is_mot = strncmp(machine, "MOT", 3) == 0;
+                if (strncmp(machine, "Pegasos2", 8) == 0)
+                        is_pegasos = 2;
+                else if (strncmp(machine, "Pegasos", 7) == 0)
+                        is_pegasos = 1;
+        }
+        for (dev = root->child; dev != NULL; dev = dev->sibling) {
+                if (dev->type == NULL || strcmp(dev->type, "pci") != 0)
+                        continue;
+                ++index;
+                /* The GG2 bridge on the LongTrail doesn't have an address */
+                if (dev->n_addrs < 1 && !is_longtrail) {
+                        printk(KERN_WARNING "Can't use %s: no address\n",
+                               dev->full_name);
+                        continue;
+                }
+                bus_range = (int *) get_property(dev, "bus-range", &len);
+                if (bus_range == NULL || len < 2 * sizeof(int)) {
+                        printk(KERN_WARNING "Can't get bus-range for %s\n",
+                                dev->full_name);
+                        continue;
+                }
+                if (bus_range[1] == bus_range[0])
+                        printk(KERN_INFO "PCI bus %d", bus_range[0]);
+                else
+                        printk(KERN_INFO "PCI buses %d..%d",
+                               bus_range[0], bus_range[1]);
+                printk(" controlled by %s", dev->type);
+                if (dev->n_addrs > 0)
+                        printk(" at %lx", dev->addrs[0].address);
+                printk("\n");
+
+                hose = pcibios_alloc_controller();
+                if (!hose) {
+                        printk("Can't allocate PCI controller structure for %s\n",
+                                dev->full_name);
+                        continue;
+                }
+                hose->arch_data = dev;
+                hose->first_busno = bus_range[0];
+                hose->last_busno = bus_range[1];
+
+                model = get_property(dev, "model", NULL);
+                if (model == NULL)
+                        model = "<none>";
+                if (device_is_compatible(dev, "IBM,python")) {
+                        setup_python(hose, dev);
+                } else if (is_mot
+                           || strncmp(model, "Motorola, Grackle", 17) == 0) {
+                        setup_grackle(hose);
+                } else if (is_longtrail) {
+                        void __iomem *p = ioremap(GG2_PCI_CONFIG_BASE, 0x80000);
+                        hose->ops = &gg2_pci_ops;
+                        hose->cfg_data = p;
+                        gg2_pci_config_base = p;
+                } else if (is_pegasos == 1) {
+                        setup_indirect_pci(hose, 0xfec00cf8, 0xfee00cfc);
+                } else if (is_pegasos == 2) {
+                        setup_peg2(hose, dev);
+                } else {
+                        printk("No methods for %s (model %s), using RTAS\n",
+                               dev->full_name, model);
+                        hose->ops = &rtas_pci_ops;
+                }
+
+                pci_process_bridge_OF_ranges(hose, dev, index == 0);
+
+                /* check the first bridge for a property that we can
+                   use to set pci_dram_offset */
+                dma = (unsigned int *)
+                        get_property(dev, "ibm,dma-ranges", &len);
+                if (index == 0 && dma != NULL && len >= 6 * sizeof(*dma)) {
+                        pci_dram_offset = dma[2] - dma[3];
+                        printk("pci_dram_offset = %lx\n", pci_dram_offset);
+                }
+        }
+
+        /* Do not fixup interrupts from OF tree on pegasos */
+        if (is_pegasos == 0)
+                ppc_md.pcibios_fixup = chrp_pcibios_fixup;
+}
diff --git a/arch/powerpc/platforms/chrp/pegasos_eth.c b/arch/powerpc/platforms/chrp/pegasos_eth.c
new file mode 100644
index 000000000000..a9052305c35d
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/pegasos_eth.c
@@ -0,0 +1,213 @@
+/*
+ *  arch/ppc/platforms/chrp_pegasos_eth.c
+ *
+ *  Copyright (C) 2005 Sven Luther <sl@bplan-gmbh.de>
+ *  Thanks to :
+ *      Dale Farnsworth <dale@farnsworth.org>
+ *      Mark A. Greer <mgreer@mvista.com>
+ *      Nicolas DET <nd@bplan-gmbh.de>
+ *      Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ *  And anyone else who helped me on this.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/mv643xx.h>
+#include <linux/pci.h>
+
+#define PEGASOS2_MARVELL_REGBASE                (0xf1000000)
+#define PEGASOS2_MARVELL_REGSIZE                (0x00004000)
+#define PEGASOS2_SRAM_BASE                      (0xf2000000)
+#define PEGASOS2_SRAM_SIZE                      (256*1024)
+
+#define PEGASOS2_SRAM_BASE_ETH0                 (PEGASOS2_SRAM_BASE)
+#define PEGASOS2_SRAM_BASE_ETH1                 (PEGASOS2_SRAM_BASE_ETH0 + (PEGASOS2_SRAM_SIZE / 2) )
+
+
+#define PEGASOS2_SRAM_RXRING_SIZE               (PEGASOS2_SRAM_SIZE/4)
+#define PEGASOS2_SRAM_TXRING_SIZE               (PEGASOS2_SRAM_SIZE/4)
+
+#undef BE_VERBOSE
+
+static struct resource mv643xx_eth_shared_resources[] = {
+        [0] = {
+                .name   = "ethernet shared base",
+                .start  = 0xf1000000 + MV643XX_ETH_SHARED_REGS,
+                .end    = 0xf1000000 + MV643XX_ETH_SHARED_REGS +
+                                        MV643XX_ETH_SHARED_REGS_SIZE - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device mv643xx_eth_shared_device = {
+        .name           = MV643XX_ETH_SHARED_NAME,
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(mv643xx_eth_shared_resources),
+        .resource       = mv643xx_eth_shared_resources,
+};
+
+static struct resource mv643xx_eth0_resources[] = {
+        [0] = {
+                .name   = "eth0 irq",
+                .start  = 9,
+                .end    = 9,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+
+static struct mv643xx_eth_platform_data eth0_pd = {
+        .tx_sram_addr = PEGASOS2_SRAM_BASE_ETH0,
+        .tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
+        .tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
+
+        .rx_sram_addr = PEGASOS2_SRAM_BASE_ETH0 + PEGASOS2_SRAM_TXRING_SIZE,
+        .rx_sram_size = PEGASOS2_SRAM_RXRING_SIZE,
+        .rx_queue_size = PEGASOS2_SRAM_RXRING_SIZE/16,
+};
+
+static struct platform_device eth0_device = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(mv643xx_eth0_resources),
+        .resource       = mv643xx_eth0_resources,
+        .dev = {
+                .platform_data = &eth0_pd,
+        },
+};
+
+static struct resource mv643xx_eth1_resources[] = {
+        [0] = {
+                .name   = "eth1 irq",
+                .start  = 9,
+                .end    = 9,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct mv643xx_eth_platform_data eth1_pd = {
+        .tx_sram_addr = PEGASOS2_SRAM_BASE_ETH1,
+        .tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
+        .tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
+
+        .rx_sram_addr = PEGASOS2_SRAM_BASE_ETH1 + PEGASOS2_SRAM_TXRING_SIZE,
+        .rx_sram_size = PEGASOS2_SRAM_RXRING_SIZE,
+        .rx_queue_size = PEGASOS2_SRAM_RXRING_SIZE/16,
+};
+
+static struct platform_device eth1_device = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(mv643xx_eth1_resources),
+        .resource       = mv643xx_eth1_resources,
+        .dev = {
+                .platform_data = &eth1_pd,
+        },
+};
+
+static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
+        &mv643xx_eth_shared_device,
+        &eth0_device,
+        &eth1_device,
+};
+
+/***********/
+/***********/
+#define MV_READ(offset,val)     { val = readl(mv643xx_reg_base + offset); }
+#define MV_WRITE(offset,data) writel(data, mv643xx_reg_base + offset)
+
+static void __iomem *mv643xx_reg_base;
+
+static int Enable_SRAM(void)
+{
+        u32 ALong;
+
+        if (mv643xx_reg_base == NULL)
+                mv643xx_reg_base = ioremap(PEGASOS2_MARVELL_REGBASE,
+                                        PEGASOS2_MARVELL_REGSIZE);
+
+        if (mv643xx_reg_base == NULL)
+                return -ENOMEM;
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: register remapped from %p to %p\n",
+                (void *)PEGASOS2_MARVELL_REGBASE, (void *)mv643xx_reg_base);
+#endif
+
+        MV_WRITE(MV64340_SRAM_CONFIG, 0);
+
+        MV_WRITE(MV64340_INTEGRATED_SRAM_BASE_ADDR, PEGASOS2_SRAM_BASE >> 16);
+
+        MV_READ(MV64340_BASE_ADDR_ENABLE, ALong);
+        ALong &= ~(1 << 19);
+        MV_WRITE(MV64340_BASE_ADDR_ENABLE, ALong);
+
+        ALong = 0x02;
+        ALong |= PEGASOS2_SRAM_BASE & 0xffff0000;
+        MV_WRITE(MV643XX_ETH_BAR_4, ALong);
+
+        MV_WRITE(MV643XX_ETH_SIZE_REG_4, (PEGASOS2_SRAM_SIZE-1) & 0xffff0000);
+
+        MV_READ(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
+        ALong &= ~(1 << 4);
+        MV_WRITE(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: register unmapped\n");
+        printk("Pegasos II/Marvell MV64361: SRAM at %p, size=%x\n", (void*) PEGASOS2_SRAM_BASE, PEGASOS2_SRAM_SIZE);
+#endif
+
+        iounmap(mv643xx_reg_base);
+        mv643xx_reg_base = NULL;
+
+        return 1;
+}
+
+
+/***********/
+/***********/
+int mv643xx_eth_add_pds(void)
+{
+        int ret = 0;
+        static struct pci_device_id pci_marvell_mv64360[] = {
+                { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, PCI_DEVICE_ID_MARVELL_MV64360) },
+                { }
+        };
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: init\n");
+#endif
+
+        if (pci_dev_present(pci_marvell_mv64360)) {
+                ret = platform_add_devices(mv643xx_eth_pd_devs,
+                                ARRAY_SIZE(mv643xx_eth_pd_devs));
+
+                if ( Enable_SRAM() < 0)
+                {
+                        eth0_pd.tx_sram_addr = 0;
+                        eth0_pd.tx_sram_size = 0;
+                        eth0_pd.rx_sram_addr = 0;
+                        eth0_pd.rx_sram_size = 0;
+
+                        eth1_pd.tx_sram_addr = 0;
+                        eth1_pd.tx_sram_size = 0;
+                        eth1_pd.rx_sram_addr = 0;
+                        eth1_pd.rx_sram_size = 0;
+
+#ifdef BE_VERBOSE
+                        printk("Pegasos II/Marvell MV64361: Can't enable the "
+                                "SRAM\n");
+#endif
+                }
+        }
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: init is over\n");
+#endif
+
+        return ret;
+}
+
+device_initcall(mv643xx_eth_add_pds);
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
new file mode 100644
index 000000000000..ecd32d5d85f4
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -0,0 +1,522 @@
+/*
+ *  arch/ppc/platforms/setup.c
+ *
+ *  Copyright (C) 1995  Linus Torvalds
+ *  Adapted from 'alpha' version by Gary Thomas
+ *  Modified by Cort Dougan (cort@cs.nmt.edu)
+ */
+
+/*
+ * bootup setup stuff..
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/tty.h>
+#include <linux/major.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/version.h>
+#include <linux/adb.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/console.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/initrd.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/prom.h>
+#include <asm/gg2.h>
+#include <asm/pci-bridge.h>
+#include <asm/dma.h>
+#include <asm/machdep.h>
+#include <asm/irq.h>
+#include <asm/hydra.h>
+#include <asm/sections.h>
+#include <asm/time.h>
+#include <asm/btext.h>
+#include <asm/i8259.h>
+#include <asm/mpic.h>
+#include <asm/rtas.h>
+#include <asm/xmon.h>
+
+#include "chrp.h"
+
+void rtas_indicator_progress(char *, unsigned short);
+void btext_progress(char *, unsigned short);
+
+int _chrp_type;
+EXPORT_SYMBOL(_chrp_type);
+
+struct mpic *chrp_mpic;
+
+/*
+ * XXX this should be in xmon.h, but putting it there means xmon.h
+ * has to include <linux/interrupt.h> (to get irqreturn_t), which
+ * causes all sorts of problems.  -- paulus
+ */
+extern irqreturn_t xmon_irq(int, void *, struct pt_regs *);
+
+extern unsigned long loops_per_jiffy;
+
+#ifdef CONFIG_SMP
+extern struct smp_ops_t chrp_smp_ops;
+#endif
+
+static const char *gg2_memtypes[4] = {
+        "FPM", "SDRAM", "EDO", "BEDO"
+};
+static const char *gg2_cachesizes[4] = {
+        "256 KB", "512 KB", "1 MB", "Reserved"
+};
+static const char *gg2_cachetypes[4] = {
+        "Asynchronous", "Reserved", "Flow-Through Synchronous",
+        "Pipelined Synchronous"
+};
+static const char *gg2_cachemodes[4] = {
+        "Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
+};
+
+void chrp_show_cpuinfo(struct seq_file *m)
+{
+        int i, sdramen;
+        unsigned int t;
+        struct device_node *root;
+        const char *model = "";
+
+        root = find_path_device("/");
+        if (root)
+                model = get_property(root, "model", NULL);
+        seq_printf(m, "machine\t\t: CHRP %s\n", model);
+
+        /* longtrail (goldengate) stuff */
+        if (!strncmp(model, "IBM,LongTrail", 13)) {
+                /* VLSI VAS96011/12 `Golden Gate 2' */
+                /* Memory banks */
+                sdramen = (in_le32(gg2_pci_config_base + GG2_PCI_DRAM_CTRL)
+                           >>31) & 1;
+                for (i = 0; i < (sdramen ? 4 : 6); i++) {
+                        t = in_le32(gg2_pci_config_base+
+                                                 GG2_PCI_DRAM_BANK0+
+                                                 i*4);
+                        if (!(t & 1))
+                                continue;
+                        switch ((t>>8) & 0x1f) {
+                        case 0x1f:
+                                model = "4 MB";
+                                break;
+                        case 0x1e:
+                                model = "8 MB";
+                                break;
+                        case 0x1c:
+                                model = "16 MB";
+                                break;
+                        case 0x18:
+                                model = "32 MB";
+                                break;
+                        case 0x10:
+                                model = "64 MB";
+                                break;
+                        case 0x00:
+                                model = "128 MB";
+                                break;
+                        default:
+                                model = "Reserved";
+                                break;
+                        }
+                        seq_printf(m, "memory bank %d\t: %s %s\n", i, model,
+                                   gg2_memtypes[sdramen ? 1 : ((t>>1) & 3)]);
+                }
+                /* L2 cache */
+                t = in_le32(gg2_pci_config_base+GG2_PCI_CC_CTRL);
+                seq_printf(m, "board l2\t: %s %s (%s)\n",
+                           gg2_cachesizes[(t>>7) & 3],
+                           gg2_cachetypes[(t>>2) & 3],
+                           gg2_cachemodes[t & 3]);
+        }
+}
+
+/*
+ *  Fixes for the National Semiconductor PC78308VUL SuperI/O
+ *
+ *  Some versions of Open Firmware incorrectly initialize the IRQ settings
+ *  for keyboard and mouse
+ */
+static inline void __init sio_write(u8 val, u8 index)
+{
+        outb(index, 0x15c);
+        outb(val, 0x15d);
+}
+
+static inline u8 __init sio_read(u8 index)
+{
+        outb(index, 0x15c);
+        return inb(0x15d);
+}
+
+static void __init sio_fixup_irq(const char *name, u8 device, u8 level,
+                                     u8 type)
+{
+        u8 level0, type0, active;
+
+        /* select logical device */
+        sio_write(device, 0x07);
+        active = sio_read(0x30);
+        level0 = sio_read(0x70);
+        type0 = sio_read(0x71);
+        if (level0 != level || type0 != type || !active) {
+                printk(KERN_WARNING "sio: %s irq level %d, type %d, %sactive: "
+                       "remapping to level %d, type %d, active\n",
+                       name, level0, type0, !active ? "in" : "", level, type);
+                sio_write(0x01, 0x30);
+                sio_write(level, 0x70);
+                sio_write(type, 0x71);
+        }
+}
+
+static void __init sio_init(void)
+{
+        struct device_node *root;
+
+        if ((root = find_path_device("/")) &&
+            !strncmp(get_property(root, "model", NULL), "IBM,LongTrail", 13)) {
+                /* logical device 0 (KBC/Keyboard) */
+                sio_fixup_irq("keyboard", 0, 1, 2);
+                /* select logical device 1 (KBC/Mouse) */
+                sio_fixup_irq("mouse", 1, 12, 2);
+        }
+}
+
+
+static void __init pegasos_set_l2cr(void)
+{
+        struct device_node *np;
+
+        /* On Pegasos, enable the l2 cache if needed, as the OF forgets it */
+        if (_chrp_type != _CHRP_Pegasos)
+                return;
+
+        /* Enable L2 cache if needed */
+        np = find_type_devices("cpu");
+        if (np != NULL) {
+                unsigned int *l2cr = (unsigned int *)
+                        get_property (np, "l2cr", NULL);
+                if (l2cr == NULL) {
+                        printk ("Pegasos l2cr : no cpu l2cr property found\n");
+                        return;
+                }
+                if (!((*l2cr) & 0x80000000)) {
+                        printk ("Pegasos l2cr : L2 cache was not active, "
+                                "activating\n");
+                        _set_L2CR(0);
+                        _set_L2CR((*l2cr) | 0x80000000);
+                }
+        }
+}
+
+void __init chrp_setup_arch(void)
+{
+        struct device_node *root = find_path_device ("/");
+        char *machine = NULL;
+        struct device_node *device;
+        unsigned int *p = NULL;
+
+        /* init to some ~sane value until calibrate_delay() runs */
+        loops_per_jiffy = 50000000/HZ;
+
+        if (root)
+                machine = get_property(root, "model", NULL);
+        if (machine && strncmp(machine, "Pegasos", 7) == 0) {
+                _chrp_type = _CHRP_Pegasos;
+        } else if (machine && strncmp(machine, "IBM", 3) == 0) {
+                _chrp_type = _CHRP_IBM;
+        } else if (machine && strncmp(machine, "MOT", 3) == 0) {
+                _chrp_type = _CHRP_Motorola;
+        } else {
+                /* Let's assume it is an IBM chrp if all else fails */
+                _chrp_type = _CHRP_IBM;
+        }
+        printk("chrp type = %x\n", _chrp_type);
+
+        rtas_initialize();
+        if (rtas_token("display-character") >= 0)
+                ppc_md.progress = rtas_progress;
+
+#ifdef CONFIG_BOOTX_TEXT
+        if (ppc_md.progress == NULL && boot_text_mapped)
+                ppc_md.progress = btext_progress;
+#endif
+
+#ifdef CONFIG_BLK_DEV_INITRD
+        /* this is fine for chrp */
+        initrd_below_start_ok = 1;
+
+        if (initrd_start)
+                ROOT_DEV = Root_RAM0;
+        else
+#endif
+                ROOT_DEV = Root_SDA2; /* sda2 (sda1 is for the kernel) */
+
+        /* On pegasos, enable the L2 cache if not already done by OF */
+        pegasos_set_l2cr();
+
+        /* Lookup PCI host bridges */
+        chrp_find_bridges();
+
+        /*
+         *  Temporary fixes for PCI devices.
+         *  -- Geert
+         */
+        hydra_init();           /* Mac I/O */
+
+        /*
+         *  Fix the Super I/O configuration
+         */
+        sio_init();
+
+        /* Get the event scan rate for the rtas so we know how
+         * often it expects a heartbeat. -- Cort
+         */
+        device = find_devices("rtas");
+        if (device)
+                p = (unsigned int *) get_property
+                        (device, "rtas-event-scan-rate", NULL);
+        if (p && *p) {
+                ppc_md.heartbeat = chrp_event_scan;
+                ppc_md.heartbeat_reset = HZ / (*p * 30) - 1;
+                ppc_md.heartbeat_count = 1;
+                printk("RTAS Event Scan Rate: %u (%lu jiffies)\n",
+                       *p, ppc_md.heartbeat_reset);
+        }
+
+        pci_create_OF_bus_map();
+
+        /*
+         * Print the banner, then scroll down so boot progress
+         * can be printed.  -- Cort
+         */
+        if (ppc_md.progress) ppc_md.progress("Linux/PPC "UTS_RELEASE"\n", 0x0);
+}
+
+void
+chrp_event_scan(void)
+{
+        unsigned char log[1024];
+        int ret = 0;
+
+        /* XXX: we should loop until the hardware says no more error logs -- Cort */
+        rtas_call(rtas_token("event-scan"), 4, 1, &ret, 0xffffffff, 0,
+                  __pa(log), 1024);
+        ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
+}
+
+/*
+ * Finds the open-pic node and sets up the mpic driver.
+ */
+static void __init chrp_find_openpic(void)
+{
+        struct device_node *np, *root;
+        int len, i, j, irq_count;
+        int isu_size, idu_size;
+        unsigned int *iranges, *opprop = NULL;
+        int oplen = 0;
+        unsigned long opaddr;
+        int na = 1;
+        unsigned char init_senses[NR_IRQS - NUM_8259_INTERRUPTS];
+
+        np = find_type_devices("open-pic");
+        if (np == NULL)
+                return;
+        root = find_path_device("/");
+        if (root) {
+                opprop = (unsigned int *) get_property
+                        (root, "platform-open-pic", &oplen);
+                na = prom_n_addr_cells(root);
+        }
+        if (opprop && oplen >= na * sizeof(unsigned int)) {
+                opaddr = opprop[na-1];  /* assume 32-bit */
+                oplen /= na * sizeof(unsigned int);
+        } else {
+                if (np->n_addrs == 0)
+                        return;
+                opaddr = np->addrs[0].address;
+                oplen = 0;
+        }
+
+        printk(KERN_INFO "OpenPIC at %lx\n", opaddr);
+
+        irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */
+        prom_get_irq_senses(init_senses, NUM_8259_INTERRUPTS, NR_IRQS - 4);
+
+        iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len);
+        if (iranges == NULL)
+                len = 0;        /* non-distributed mpic */
+        else
+                len /= 2 * sizeof(unsigned int);
+
+        /*
+         * The first pair of cells in interrupt-ranges refers to the
+         * IDU; subsequent pairs refer to the ISUs.
+         */
+        if (oplen < len) {
+                printk(KERN_ERR "Insufficient addresses for distributed"
+                       " OpenPIC (%d < %d)\n", np->n_addrs, len);
+                len = oplen;
+        }
+
+        isu_size = 0;
+        idu_size = 0;
+        if (len > 0 && iranges[1] != 0) {
+                printk(KERN_INFO "OpenPIC irqs %d..%d in IDU\n",
+                       iranges[0], iranges[0] + iranges[1] - 1);
+                idu_size = iranges[1];
+        }
+        if (len > 1)
+                isu_size = iranges[3];
+
+        chrp_mpic = mpic_alloc(opaddr, MPIC_PRIMARY,
+                               isu_size, NUM_ISA_INTERRUPTS, irq_count,
+                               NR_IRQS - 4, init_senses, irq_count,
+                               " MPIC    ");
+        if (chrp_mpic == NULL) {
+                printk(KERN_ERR "Failed to allocate MPIC structure\n");
+                return;
+        }
+
+        j = na - 1;
+        for (i = 1; i < len; ++i) {
+                iranges += 2;
+                j += na;
+                printk(KERN_INFO "OpenPIC irqs %d..%d in ISU at %x\n",
+                       iranges[0], iranges[0] + iranges[1] - 1,
+                       opprop[j]);
+                mpic_assign_isu(chrp_mpic, i - 1, opprop[j]);
+        }
+
+        mpic_init(chrp_mpic);
+        mpic_setup_cascade(NUM_ISA_INTERRUPTS, i8259_irq_cascade, NULL);
+}
+
+#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON)
+static struct irqaction xmon_irqaction = {
+        .handler = xmon_irq,
+        .mask = CPU_MASK_NONE,
+        .name = "XMON break",
+};
+#endif
+
+void __init chrp_init_IRQ(void)
+{
+        struct device_node *np;
+        unsigned long chrp_int_ack = 0;
+#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON)
+        struct device_node *kbd;
+#endif
+
+        for (np = find_devices("pci"); np != NULL; np = np->next) {
+                unsigned int *addrp = (unsigned int *)
+                        get_property(np, "8259-interrupt-acknowledge", NULL);
+
+                if (addrp == NULL)
+                        continue;
+                chrp_int_ack = addrp[prom_n_addr_cells(np)-1];
+                break;
+        }
+        if (np == NULL)
+                printk(KERN_ERR "Cannot find PCI interrupt acknowledge address\n");
+
+        chrp_find_openpic();
+
+        i8259_init(chrp_int_ack, 0);
+
+        if (_chrp_type == _CHRP_Pegasos)
+                ppc_md.get_irq        = i8259_irq;
+        else
+                ppc_md.get_irq        = mpic_get_irq;
+
+#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON)
+        /* see if there is a keyboard in the device tree
+           with a parent of type "adb" */
+        for (kbd = find_devices("keyboard"); kbd; kbd = kbd->next)
+                if (kbd->parent && kbd->parent->type
+                    && strcmp(kbd->parent->type, "adb") == 0)
+                        break;
+        if (kbd)
+                setup_irq(HYDRA_INT_ADB_NMI, &xmon_irqaction);
+#endif
+}
+
+void __init
+chrp_init2(void)
+{
+#ifdef CONFIG_NVRAM
+        chrp_nvram_init();
+#endif
+
+        request_region(0x20,0x20,"pic1");
+        request_region(0xa0,0x20,"pic2");
+        request_region(0x00,0x20,"dma1");
+        request_region(0x40,0x20,"timer");
+        request_region(0x80,0x10,"dma page reg");
+        request_region(0xc0,0x20,"dma2");
+
+        if (ppc_md.progress)
+                ppc_md.progress("  Have fun!    ", 0x7777);
+}
+
+void __init chrp_init(void)
+{
+        ISA_DMA_THRESHOLD = ~0L;
+        DMA_MODE_READ = 0x44;
+        DMA_MODE_WRITE = 0x48;
+        isa_io_base = CHRP_ISA_IO_BASE;         /* default value */
+        ppc_do_canonicalize_irqs = 1;
+
+        /* Assume we have an 8259... */
+        __irq_offset_value = NUM_ISA_INTERRUPTS;
+
+        ppc_md.setup_arch     = chrp_setup_arch;
+        ppc_md.show_cpuinfo   = chrp_show_cpuinfo;
+
+        ppc_md.init_IRQ       = chrp_init_IRQ;
+        ppc_md.init           = chrp_init2;
+
+        ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
+
+        ppc_md.restart        = rtas_restart;
+        ppc_md.power_off      = rtas_power_off;
+        ppc_md.halt           = rtas_halt;
+
+        ppc_md.time_init      = chrp_time_init;
+        ppc_md.set_rtc_time   = chrp_set_rtc_time;
+        ppc_md.get_rtc_time   = chrp_get_rtc_time;
+        ppc_md.calibrate_decr = chrp_calibrate_decr;
+
+#ifdef CONFIG_SMP
+        smp_ops = &chrp_smp_ops;
+#endif /* CONFIG_SMP */
+}
+
+#ifdef CONFIG_BOOTX_TEXT
+void
+btext_progress(char *s, unsigned short hex)
+{
+        btext_drawstring(s);
+        btext_drawstring("\n");
+}
+#endif /* CONFIG_BOOTX_TEXT */
diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c
new file mode 100644
index 000000000000..31ee49c25014
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/smp.c
@@ -0,0 +1,122 @@
+/*
+ * Smp support for CHRP machines.
+ *
+ * Written by Cort Dougan (cort@cs.nmt.edu) borrowing a great
+ * deal of code from the sparc and intel versions.
+ *
+ * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+
+#include <asm/ptrace.h>
+#include <asm/atomic.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/smp.h>
+#include <asm/residual.h>
+#include <asm/time.h>
+#include <asm/open_pic.h>
+#include <asm/machdep.h>
+#include <asm/smp.h>
+#include <asm/mpic.h>
+
+extern unsigned long smp_chrp_cpu_nr;
+
+static int __init smp_chrp_probe(void)
+{
+        struct device_node *cpus = NULL;
+        unsigned int *reg;
+        int reglen;
+        int ncpus = 0;
+        int cpuid;
+        unsigned int phys;
+
+        /* Count CPUs in the device-tree */
+        cpuid = 1;      /* the boot cpu is logical cpu 0 */
+        while ((cpus = of_find_node_by_type(cpus, "cpu")) != NULL) {
+                phys = ncpus;
+                reg = (unsigned int *) get_property(cpus, "reg", &reglen);
+                if (reg && reglen >= sizeof(unsigned int))
+                        /* hmmm, not having a reg property would be bad */
+                        phys = *reg;
+                if (phys != boot_cpuid_phys) {
+                        set_hard_smp_processor_id(cpuid, phys);
+                        ++cpuid;
+                }
+                ++ncpus;
+        }
+
+        printk(KERN_INFO "CHRP SMP probe found %d cpus\n", ncpus);
+
+        /* Nothing more to do if less than 2 of them */
+        if (ncpus <= 1)
+                return 1;
+
+        mpic_request_ipis();
+
+        return ncpus;
+}
+
+static void __devinit smp_chrp_kick_cpu(int nr)
+{
+        *(unsigned long *)KERNELBASE = nr;
+        asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory");
+}
+
+static void __devinit smp_chrp_setup_cpu(int cpu_nr)
+{
+        mpic_setup_this_cpu();
+}
+
+static DEFINE_SPINLOCK(timebase_lock);
+static unsigned int timebase_upper = 0, timebase_lower = 0;
+
+void __devinit smp_chrp_give_timebase(void)
+{
+        spin_lock(&timebase_lock);
+        rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
+        timebase_upper = get_tbu();
+        timebase_lower = get_tbl();
+        spin_unlock(&timebase_lock);
+
+        while (timebase_upper || timebase_lower)
+                barrier();
+        rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
+}
+
+void __devinit smp_chrp_take_timebase(void)
+{
+        while (!(timebase_upper || timebase_lower))
+                barrier();
+        spin_lock(&timebase_lock);
+        set_tb(timebase_upper, timebase_lower);
+        timebase_upper = 0;
+        timebase_lower = 0;
+        spin_unlock(&timebase_lock);
+        printk("CPU %i taken timebase\n", smp_processor_id());
+}
+
+/* CHRP with openpic */
+struct smp_ops_t chrp_smp_ops = {
+        .message_pass = smp_mpic_message_pass,
+        .probe = smp_chrp_probe,
+        .kick_cpu = smp_chrp_kick_cpu,
+        .setup_cpu = smp_chrp_setup_cpu,
+        .give_timebase = smp_chrp_give_timebase,
+        .take_timebase = smp_chrp_take_timebase,
+};
diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c
new file mode 100644
index 000000000000..9e53535ddb82
--- /dev/null
+++ b/arch/powerpc/platforms/chrp/time.c
@@ -0,0 +1,188 @@
+/*
+ *  arch/ppc/platforms/chrp_time.c
+ *
+ *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
+ *
+ * Adapted for PowerPC (PReP) by Gary Thomas
+ * Modified by Cort Dougan (cort@cs.nmt.edu).
+ * Copied and modified from arch/i386/kernel/time.c
+ *
+ */
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/time.h>
+#include <linux/timex.h>
+#include <linux/kernel_stat.h>
+#include <linux/mc146818rtc.h>
+#include <linux/init.h>
+#include <linux/bcd.h>
+
+#include <asm/io.h>
+#include <asm/nvram.h>
+#include <asm/prom.h>
+#include <asm/sections.h>
+#include <asm/time.h>
+
+extern spinlock_t rtc_lock;
+
+static int nvram_as1 = NVRAM_AS1;
+static int nvram_as0 = NVRAM_AS0;
+static int nvram_data = NVRAM_DATA;
+
+long __init chrp_time_init(void)
+{
+        struct device_node *rtcs;
+        int base;
+
+        rtcs = find_compatible_devices("rtc", "pnpPNP,b00");
+        if (rtcs == NULL)
+                rtcs = find_compatible_devices("rtc", "ds1385-rtc");
+        if (rtcs == NULL || rtcs->addrs == NULL)
+                return 0;
+        base = rtcs->addrs[0].address;
+        nvram_as1 = 0;
+        nvram_as0 = base;
+        nvram_data = base + 1;
+
+        return 0;
+}
+
+int chrp_cmos_clock_read(int addr)
+{
+        if (nvram_as1 != 0)
+                outb(addr>>8, nvram_as1);
+        outb(addr, nvram_as0);
+        return (inb(nvram_data));
+}
+
+void chrp_cmos_clock_write(unsigned long val, int addr)
+{
+        if (nvram_as1 != 0)
+                outb(addr>>8, nvram_as1);
+        outb(addr, nvram_as0);
+        outb(val, nvram_data);
+        return;
+}
+
+/*
+ * Set the hardware clock. -- Cort
+ */
+int chrp_set_rtc_time(struct rtc_time *tmarg)
+{
+        unsigned char save_control, save_freq_select;
+        struct rtc_time tm = *tmarg;
+
+        spin_lock(&rtc_lock);
+
+        save_control = chrp_cmos_clock_read(RTC_CONTROL); /* tell the clock it's being set */
+
+        chrp_cmos_clock_write((save_control|RTC_SET), RTC_CONTROL);
+
+        save_freq_select = chrp_cmos_clock_read(RTC_FREQ_SELECT); /* stop and reset prescaler */
+
+        chrp_cmos_clock_write((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+        tm.tm_year -= 1900;
+        if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+                BIN_TO_BCD(tm.tm_sec);
+                BIN_TO_BCD(tm.tm_min);
+                BIN_TO_BCD(tm.tm_hour);
+                BIN_TO_BCD(tm.tm_mon);
+                BIN_TO_BCD(tm.tm_mday);
+                BIN_TO_BCD(tm.tm_year);
+        }
+        chrp_cmos_clock_write(tm.tm_sec,RTC_SECONDS);
+        chrp_cmos_clock_write(tm.tm_min,RTC_MINUTES);
+        chrp_cmos_clock_write(tm.tm_hour,RTC_HOURS);
+        chrp_cmos_clock_write(tm.tm_mon,RTC_MONTH);
+        chrp_cmos_clock_write(tm.tm_mday,RTC_DAY_OF_MONTH);
+        chrp_cmos_clock_write(tm.tm_year,RTC_YEAR);
+
+        /* The following flags have to be released exactly in this order,
+         * otherwise the DS12887 (popular MC146818A clone with integrated
+         * battery and quartz) will not reset the oscillator and will not
+         * update precisely 500 ms later. You won't find this mentioned in
+         * the Dallas Semiconductor data sheets, but who believes data
+         * sheets anyway ...                           -- Markus Kuhn
+         */
+        chrp_cmos_clock_write(save_control, RTC_CONTROL);
+        chrp_cmos_clock_write(save_freq_select, RTC_FREQ_SELECT);
+
+        spin_unlock(&rtc_lock);
+        return 0;
+}
+
+void chrp_get_rtc_time(struct rtc_time *tm)
+{
+        unsigned int year, mon, day, hour, min, sec;
+        int uip, i;
+
+        /* The Linux interpretation of the CMOS clock register contents:
+         * When the Update-In-Progress (UIP) flag goes from 1 to 0, the
+         * RTC registers show the second which has precisely just started.
+         * Let's hope other operating systems interpret the RTC the same way.
+         */
+
+        /* Since the UIP flag is set for about 2.2 ms and the clock
+         * is typically written with a precision of 1 jiffy, trying
+         * to obtain a precision better than a few milliseconds is
+         * an illusion. Only consistency is interesting, this also
+         * allows to use the routine for /dev/rtc without a potential
+         * 1 second kernel busy loop triggered by any reader of /dev/rtc.
+         */
+
+        for ( i = 0; i<1000000; i++) {
+                uip = chrp_cmos_clock_read(RTC_FREQ_SELECT);
+                sec = chrp_cmos_clock_read(RTC_SECONDS);
+                min = chrp_cmos_clock_read(RTC_MINUTES);
+                hour = chrp_cmos_clock_read(RTC_HOURS);
+                day = chrp_cmos_clock_read(RTC_DAY_OF_MONTH);
+                mon = chrp_cmos_clock_read(RTC_MONTH);
+                year = chrp_cmos_clock_read(RTC_YEAR);
+                uip |= chrp_cmos_clock_read(RTC_FREQ_SELECT);
+                if ((uip & RTC_UIP)==0) break;
+        }
+
+        if (!(chrp_cmos_clock_read(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+                BCD_TO_BIN(sec);
+                BCD_TO_BIN(min);
+                BCD_TO_BIN(hour);
+                BCD_TO_BIN(day);
+                BCD_TO_BIN(mon);
+                BCD_TO_BIN(year);
+        }
+        if ((year += 1900) < 1970)
+                year += 100;
+        tm->tm_sec = sec;
+        tm->tm_min = min;
+        tm->tm_hour = hour;
+        tm->tm_mday = day;
+        tm->tm_mon = mon;
+        tm->tm_year = year;
+}
+
+
+void __init chrp_calibrate_decr(void)
+{
+        struct device_node *cpu;
+        unsigned int freq, *fp;
+
+        /*
+         * The cpu node should have a timebase-frequency property
+         * to tell us the rate at which the decrementer counts.
+         */
+        freq = 16666000;                /* hardcoded default */
+        cpu = find_type_devices("cpu");
+        if (cpu != 0) {
+                fp = (unsigned int *)
+                        get_property(cpu, "timebase-frequency", NULL);
+                if (fp != 0)
+                        freq = *fp;
+        }
+        ppc_tb_freq = freq;
+}
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
new file mode 100644
index 000000000000..81250090f98d
--- /dev/null
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -0,0 +1,318 @@
+choice
+        prompt "Machine Type"
+        depends on EMBEDDED6xx
+
+config KATANA
+        bool "Artesyn-Katana"
+        help
+          Select KATANA if configuring an Artesyn KATANA 750i or 3750
+          cPCI board.
+
+config WILLOW
+        bool "Cogent-Willow"
+
+config CPCI690
+        bool "Force-CPCI690"
+        help
+          Select CPCI690 if configuring a Force CPCI690 cPCI board.
+
+config POWERPMC250
+        bool "Force-PowerPMC250"
+
+config CHESTNUT
+        bool "IBM 750FX Eval board or 750GX Eval board"
+        help
+          Select CHESTNUT if configuring an IBM 750FX Eval Board or a
+          IBM 750GX Eval board.
+
+config SPRUCE
+        bool "IBM-Spruce"
+        select PPC_INDIRECT_PCI
+
+config HDPU
+        bool "Sky-HDPU"
+        help
+          Select HDPU if configuring a Sky Computers Compute Blade.
+
+config HDPU_FEATURES
+        depends HDPU
+        tristate "HDPU-Features"
+        help
+          Select to enable HDPU enhanced features.
+
+config EV64260
+        bool "Marvell-EV64260BP"
+        help
+          Select EV64260 if configuring a Marvell (formerly Galileo)
+          EV64260BP Evaluation platform.
+
+config LOPEC
+        bool "Motorola-LoPEC"
+        select PPC_I8259
+
+config MVME5100
+        bool "Motorola-MVME5100"
+        select PPC_INDIRECT_PCI
+
+config PPLUS
+        bool "Motorola-PowerPlus"
+        select PPC_I8259
+        select PPC_INDIRECT_PCI
+
+config PRPMC750
+        bool "Motorola-PrPMC750"
+        select PPC_INDIRECT_PCI
+
+config PRPMC800
+        bool "Motorola-PrPMC800"
+        select PPC_INDIRECT_PCI
+
+config SANDPOINT
+        bool "Motorola-Sandpoint"
+        select PPC_I8259
+        help
+          Select SANDPOINT if configuring for a Motorola Sandpoint X3
+          (any flavor).
+
+config RADSTONE_PPC7D
+        bool "Radstone Technology PPC7D board"
+        select PPC_I8259
+
+config PAL4
+        bool "SBS-Palomar4"
+
+config GEMINI
+        bool "Synergy-Gemini"
+        select PPC_INDIRECT_PCI
+        depends on BROKEN
+        help
+          Select Gemini if configuring for a Synergy Microsystems' Gemini
+          series Single Board Computer.  More information is available at:
+          <http://www.synergymicro.com/PressRel/97_10_15.html>.
+
+config EST8260
+        bool "EST8260"
+        ---help---
+          The EST8260 is a single-board computer manufactured by Wind River
+          Systems, Inc. (formerly Embedded Support Tools Corp.) and based on
+          the MPC8260.  Wind River Systems has a website at
+          <http://www.windriver.com/>, but the EST8260 cannot be found on it
+          and has probably been discontinued or rebadged.
+
+config SBC82xx
+        bool "SBC82xx"
+        ---help---
+          SBC PowerQUICC II, single-board computer with MPC82xx CPU
+          Manufacturer: Wind River Systems, Inc.
+          Date of Release: May 2003
+          End of Life: -
+          URL: <http://www.windriver.com/>
+
+config SBS8260
+        bool "SBS8260"
+
+config RPX8260
+        bool "RPXSUPER"
+
+config TQM8260
+        bool "TQM8260"
+        ---help---
+          MPC8260 based module, little larger than credit card,
+          up to 128 MB global + 64 MB local RAM, 32 MB Flash,
+          32 kB EEPROM, 256 kB L@ Cache, 10baseT + 100baseT Ethernet,
+          2 x serial ports, ...
+          Manufacturer: TQ Components, www.tq-group.de
+          Date of Release: June 2001
+          End of Life: not yet :-)
+          URL: <http://www.denx.de/PDF/TQM82xx_SPEC_Rev005.pdf>
+
+config ADS8272
+        bool "ADS8272"
+
+config PQ2FADS
+        bool "Freescale-PQ2FADS"
+        help
+          Select PQ2FADS if you wish to configure for a Freescale
+          PQ2FADS board (-VR or -ZU).
+
+config LITE5200
+        bool "Freescale LITE5200 / (IceCube)"
+        select PPC_MPC52xx
+        help
+          Support for the LITE5200 dev board for the MPC5200 from Freescale.
+          This is for the LITE5200 version 2.0 board. Don't know if it changes
+          much but it's only been tested on this board version. I think this
+          board is also known as IceCube.
+
+config MPC834x_SYS
+        bool "Freescale MPC834x SYS"
+        help
+          This option enables support for the MPC 834x SYS evaluation board.
+
+          Be aware that PCI buses can only function when SYS board is plugged
+          into the PIB (Platform IO Board) board from Freescale which provide
+          3 PCI slots.  The PIBs PCI initialization is the bootloader's
+          responsiblilty.
+
+config EV64360
+        bool "Marvell-EV64360BP"
+        help
+          Select EV64360 if configuring a Marvell EV64360BP Evaluation
+          platform.
+endchoice
+
+config PQ2ADS
+        bool
+        depends on ADS8272
+        default y
+
+config TQM8xxL
+        bool
+        depends on 8xx && (TQM823L || TQM850L || FPS850L || TQM855L || TQM860L)
+        default y
+
+config PPC_MPC52xx
+        bool
+
+config 8260
+        bool "CPM2 Support" if WILLOW
+        depends on 6xx
+        default y if TQM8260 || RPX8260 || EST8260 || SBS8260 || SBC82xx || PQ2FADS
+        help
+          The MPC8260 is a typical embedded CPU made by Motorola.  Selecting
+          this option means that you wish to build a kernel for a machine with
+          an 8260 class CPU.
+
+config 8272
+        bool
+        depends on 6xx
+        default y if ADS8272
+        select 8260
+        help
+          The MPC8272 CPM has a different internal dpram setup than other CPM2
+          devices
+
+config 83xx
+        bool
+        default y if MPC834x_SYS
+
+config MPC834x
+        bool
+        default y if MPC834x_SYS
+
+config CPM2
+        bool
+        depends on 8260 || MPC8560 || MPC8555
+        default y
+        help
+          The CPM2 (Communications Processor Module) is a coprocessor on
+          embedded CPUs made by Motorola.  Selecting this option means that
+          you wish to build a kernel for a machine with a CPM2 coprocessor
+          on it (826x, 827x, 8560).
+
+config PPC_GEN550
+        bool
+        depends on SANDPOINT || SPRUCE || PPLUS || \
+                PRPMC750 || PRPMC800 || LOPEC || \
+                (EV64260 && !SERIAL_MPSC) || CHESTNUT || RADSTONE_PPC7D || \
+                83xx
+        default y
+
+config FORCE
+        bool
+        depends on 6xx && POWERPMC250
+        default y
+
+config GT64260
+        bool
+        depends on EV64260 || CPCI690
+        default y
+
+config MV64360          # Really MV64360 & MV64460
+        bool
+        depends on CHESTNUT || KATANA || RADSTONE_PPC7D || HDPU || EV64360
+        default y
+
+config MV64X60
+        bool
+        depends on (GT64260 || MV64360)
+        select PPC_INDIRECT_PCI
+        default y
+
+menu "Set bridge options"
+        depends on MV64X60
+
+config NOT_COHERENT_CACHE
+        bool "Turn off Cache Coherency"
+        default n
+        help
+          Some 64x60 bridges lock up when trying to enforce cache coherency.
+          When this option is selected, cache coherency will be turned off.
+          Note that this can cause other problems (e.g., stale data being
+          speculatively loaded via a cached mapping).  Use at your own risk.
+
+config MV64X60_BASE
+        hex "Set bridge base used by firmware"
+        default "0xf1000000"
+        help
+          A firmware can leave the base address of the bridge's registers at
+          a non-standard location.  If so, set this value to reflect the
+          address of that non-standard location.
+
+config MV64X60_NEW_BASE
+        hex "Set bridge base used by kernel"
+        default "0xf1000000"
+        help
+          If the current base address of the bridge's registers is not where
+          you want it, set this value to the address that you want it moved to.
+
+endmenu
+
+config NONMONARCH_SUPPORT
+        bool "Enable Non-Monarch Support"
+        depends on PRPMC800
+
+config HARRIER
+        bool
+        depends on PRPMC800
+        default y
+
+config EPIC_SERIAL_MODE
+        bool
+        depends on 6xx && (LOPEC || SANDPOINT)
+        default y
+
+config MPC10X_BRIDGE
+        bool
+        depends on POWERPMC250 || LOPEC || SANDPOINT
+        select PPC_INDIRECT_PCI
+        default y
+
+config MPC10X_OPENPIC
+        bool
+        depends on POWERPMC250 || LOPEC || SANDPOINT
+        default y
+
+config MPC10X_STORE_GATHERING
+        bool "Enable MPC10x store gathering"
+        depends on MPC10X_BRIDGE
+
+config SANDPOINT_ENABLE_UART1
+        bool "Enable DUART mode on Sandpoint"
+        depends on SANDPOINT
+        help
+          If this option is enabled then the MPC824x processor will run
+          in DUART mode instead of UART mode.
+
+config HARRIER_STORE_GATHERING
+        bool "Enable Harrier store gathering"
+        depends on HARRIER
+
+config MVME5100_IPMC761_PRESENT
+        bool "MVME5100 configured with an IPMC761"
+        depends on MVME5100
+        select PPC_I8259
+
+config SPRUCE_BAUD_33M
+        bool "Spruce baud clock support"
+        depends on SPRUCE
diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig
new file mode 100644
index 000000000000..3d957a30c8c2
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/Kconfig
@@ -0,0 +1,31 @@
+
+menu "iSeries device drivers"
+        depends on PPC_ISERIES
+
+config VIOCONS
+        tristate "iSeries Virtual Console Support"
+
+config VIODASD
+        tristate "iSeries Virtual I/O disk support"
+        help
+          If you are running on an iSeries system and you want to use
+          virtual disks created and managed by OS/400, say Y.
+
+config VIOCD
+        tristate "iSeries Virtual I/O CD support"
+        help
+          If you are running Linux on an IBM iSeries system and you want to
+          read a CD drive owned by OS/400, say Y here.
+
+config VIOTAPE
+        tristate "iSeries Virtual Tape Support"
+        help
+          If you are running Linux on an iSeries system and you want Linux
+          to read and/or write a tape drive owned by OS/400, say Y here.
+
+endmenu
+
+config VIOPATH
+        bool
+        depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || VETH
+        default y
diff --git a/arch/powerpc/platforms/iseries/Makefile b/arch/powerpc/platforms/iseries/Makefile
new file mode 100644
index 000000000000..127b465308be
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/Makefile
@@ -0,0 +1,9 @@
+EXTRA_CFLAGS    += -mno-minimal-toc
+
+obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \
+        hvcall.o proc.o htab.o iommu.o misc.o
+obj-$(CONFIG_PCI) += pci.o irq.o vpdinfo.o
+obj-$(CONFIG_IBMVIO) += vio.o
+obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_VIOPATH) += viopath.o
+obj-$(CONFIG_MODULES) += ksyms.o
diff --git a/include/asm-ppc64/iSeries/HvCallHpt.h b/arch/powerpc/platforms/iseries/call_hpt.h
index 43a1969230b8..321f3bb7a8f5 100644
--- a/include/asm-ppc64/iSeries/HvCallHpt.h
+++ b/arch/powerpc/platforms/iseries/call_hpt.h
@@ -1,5 +1,4 @@
 /*
- * HvCallHpt.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _HVCALLHPT_H
-#define _HVCALLHPT_H
+#ifndef _PLATFORMS_ISERIES_CALL_HPT_H
+#define _PLATFORMS_ISERIES_CALL_HPT_H
 
 /*
  * This file contains the "hypervisor call" interface which is used to
@@ -99,4 +98,4 @@ static inline void HvCallHpt_addValidate(u32 hpteIndex, u32 hBit, hpte_t *hpte)
         HvCall4(HvCallHptAddValidate, hpteIndex, hBit, hpte->v, hpte->r);
 }
 
-#endif /* _HVCALLHPT_H */
+#endif /* _PLATFORMS_ISERIES_CALL_HPT_H */
diff --git a/include/asm-ppc64/iSeries/HvCallPci.h b/arch/powerpc/platforms/iseries/call_pci.h
index c8d675c40f5e..a86e065b9577 100644
--- a/include/asm-ppc64/iSeries/HvCallPci.h
+++ b/arch/powerpc/platforms/iseries/call_pci.h
@@ -22,8 +22,8 @@
  *   Created, Jan 9, 2001
  */
 
-#ifndef _HVCALLPCI_H
-#define _HVCALLPCI_H
+#ifndef _PLATFORMS_ISERIES_CALL_PCI_H
+#define _PLATFORMS_ISERIES_CALL_PCI_H
 
 #include <asm/iSeries/HvCallSc.h>
 #include <asm/iSeries/HvTypes.h>
@@ -126,25 +126,6 @@ enum HvCallPci_VpdType {
 #define HvCallPciUnmaskInterrupts       HvCallPci + 49
 #define HvCallPciGetBusUnitInfo         HvCallPci + 50
 
-static inline u64 HvCallPci_configLoad8(u16 busNumber, u8 subBusNumber,
-                u8 deviceId, u32 offset, u8 *value)
-{
-        struct HvCallPci_DsaAddr dsa;
-        struct HvCallPci_LoadReturn retVal;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumber;
-        dsa.subBusNumber = subBusNumber;
-        dsa.deviceId = deviceId;
-
-        HvCall3Ret16(HvCallPciConfigLoad8, &retVal, *(u64 *)&dsa, offset, 0);
-
-        *value = retVal.value;
-
-        return retVal.rc;
-}
-
 static inline u64 HvCallPci_configLoad16(u16 busNumber, u8 subBusNumber,
                 u8 deviceId, u32 offset, u16 *value)
 {
@@ -164,25 +145,6 @@ static inline u64 HvCallPci_configLoad16(u16 busNumber, u8 subBusNumber,
         return retVal.rc;
 }
 
-static inline u64 HvCallPci_configLoad32(u16 busNumber, u8 subBusNumber,
-                u8 deviceId, u32 offset, u32 *value)
-{
-        struct HvCallPci_DsaAddr dsa;
-        struct HvCallPci_LoadReturn retVal;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumber;
-        dsa.subBusNumber = subBusNumber;
-        dsa.deviceId = deviceId;
-
-        HvCall3Ret16(HvCallPciConfigLoad32, &retVal, *(u64 *)&dsa, offset, 0);
-
-        *value = retVal.value;
-
-        return retVal.rc;
-}
-
 static inline u64 HvCallPci_configStore8(u16 busNumber, u8 subBusNumber,
                 u8 deviceId, u32 offset, u8 value)
 {
@@ -197,186 +159,6 @@ static inline u64 HvCallPci_configStore8(u16 busNumber, u8 subBusNumber,
         return HvCall4(HvCallPciConfigStore8, *(u64 *)&dsa, offset, value, 0);
 }
 
-static inline u64 HvCallPci_configStore16(u16 busNumber, u8 subBusNumber,
-                u8 deviceId, u32 offset, u16 value)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumber;
-        dsa.subBusNumber = subBusNumber;
-        dsa.deviceId = deviceId;
-
-        return HvCall4(HvCallPciConfigStore16, *(u64 *)&dsa, offset, value, 0);
-}
-
-static inline u64 HvCallPci_configStore32(u16 busNumber, u8 subBusNumber,
-                u8 deviceId, u32 offset, u32 value)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumber;
-        dsa.subBusNumber = subBusNumber;
-        dsa.deviceId = deviceId;
-
-        return HvCall4(HvCallPciConfigStore32, *(u64 *)&dsa, offset, value, 0);
-}
-
-static inline u64 HvCallPci_barLoad8(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u8 *valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-        struct HvCallPci_LoadReturn retVal;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        HvCall3Ret16(HvCallPciBarLoad8, &retVal, *(u64 *)&dsa, offsetParm, 0);
-
-        *valueParm = retVal.value;
-
-        return retVal.rc;
-}
-
-static inline u64 HvCallPci_barLoad16(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u16 *valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-        struct HvCallPci_LoadReturn retVal;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        HvCall3Ret16(HvCallPciBarLoad16, &retVal, *(u64 *)&dsa, offsetParm, 0);
-
-        *valueParm = retVal.value;
-
-        return retVal.rc;
-}
-
-static inline u64 HvCallPci_barLoad32(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u32 *valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-        struct HvCallPci_LoadReturn retVal;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        HvCall3Ret16(HvCallPciBarLoad32, &retVal, *(u64 *)&dsa, offsetParm, 0);
-
-        *valueParm = retVal.value;
-
-        return retVal.rc;
-}
-
-static inline u64 HvCallPci_barLoad64(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u64 *valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-        struct HvCallPci_LoadReturn retVal;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        HvCall3Ret16(HvCallPciBarLoad64, &retVal, *(u64 *)&dsa, offsetParm, 0);
-
-        *valueParm = retVal.value;
-
-        return retVal.rc;
-}
-
-static inline u64 HvCallPci_barStore8(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u8 valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        return HvCall4(HvCallPciBarStore8, *(u64 *)&dsa, offsetParm,
-                        valueParm, 0);
-}
-
-static inline u64 HvCallPci_barStore16(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u16 valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        return HvCall4(HvCallPciBarStore16, *(u64 *)&dsa, offsetParm,
-                        valueParm, 0);
-}
-
-static inline u64 HvCallPci_barStore32(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u32 valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        return HvCall4(HvCallPciBarStore32, *(u64 *)&dsa, offsetParm,
-                        valueParm, 0);
-}
-
-static inline u64 HvCallPci_barStore64(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u8 barNumberParm, u64 offsetParm,
-                u64 valueParm)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-        dsa.barNumber = barNumberParm;
-
-        return HvCall4(HvCallPciBarStore64, *(u64 *)&dsa, offsetParm,
-                        valueParm, 0);
-}
-
 static inline u64 HvCallPci_eoi(u16 busNumberParm, u8 subBusParm,
                 u8 deviceIdParm)
 {
@@ -437,20 +219,6 @@ static inline u64 HvCallPci_unmaskFisr(u16 busNumberParm, u8 subBusParm,
         return HvCall2(HvCallPciUnmaskFisr, *(u64*)&dsa, fisrMask);
 }
 
-static inline u64 HvCallPci_setSlotReset(u16 busNumberParm, u8 subBusParm,
-                u8 deviceIdParm, u64 onNotOff)
-{
-        struct HvCallPci_DsaAddr dsa;
-
-        *((u64*)&dsa) = 0;
-
-        dsa.busNumber = busNumberParm;
-        dsa.subBusNumber = subBusParm;
-        dsa.deviceId = deviceIdParm;
-
-        return HvCall2(HvCallPciSetSlotReset, *(u64*)&dsa, onNotOff);
-}
-
 static inline u64 HvCallPci_getDeviceInfo(u16 busNumberParm, u8 subBusParm,
                 u8 deviceNumberParm, u64 parms, u32 sizeofParms)
 {
@@ -519,15 +287,4 @@ static inline int HvCallPci_getBusVpd(u16 busNumParm, u64 destParm,
                 return xRc & 0xFFFF;
 }
 
-static inline int HvCallPci_getBusAdapterVpd(u16 busNumParm, u64 destParm,
-                u16 sizeParm)
-{
-        u64 xRc = HvCall4(HvCallPciGetCardVpd, busNumParm, destParm,
-                        sizeParm, HvCallPci_BusAdapterVpd);
-        if (xRc == -1)
-                return -1;
-        else
-                return xRc & 0xFFFF;
-}
-
-#endif /* _HVCALLPCI_H */
+#endif /* _PLATFORMS_ISERIES_CALL_PCI_H */
diff --git a/include/asm-ppc64/iSeries/HvCallSm.h b/arch/powerpc/platforms/iseries/call_sm.h
index 8a3dbb071a43..ef223166cf22 100644
--- a/include/asm-ppc64/iSeries/HvCallSm.h
+++ b/arch/powerpc/platforms/iseries/call_sm.h
@@ -1,5 +1,4 @@
 /*
- * HvCallSm.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _HVCALLSM_H
-#define _HVCALLSM_H
+#ifndef _ISERIES_CALL_SM_H
+#define _ISERIES_CALL_SM_H
 
 /*
  * This file contains the "hypervisor call" interface which is used to
@@ -35,4 +34,4 @@ static inline u64 HvCallSm_get64BitsOfAccessMap(HvLpIndex lpIndex,
         return HvCall2(HvCallSmGet64BitsOfAccessMap, lpIndex, indexIntoBitMap);
 }
 
-#endif /* _HVCALLSM_H */
+#endif /* _ISERIES_CALL_SM_H */
diff --git a/arch/ppc64/kernel/iSeries_htab.c b/arch/powerpc/platforms/iseries/htab.c
index 073b76661747..b3c6c3374ca6 100644
--- a/arch/ppc64/kernel/iSeries_htab.c
+++ b/arch/powerpc/platforms/iseries/htab.c
@@ -1,10 +1,10 @@
 /*
  * iSeries hashtable management.
- *      Derived from pSeries_htab.c
+ *      Derived from pSeries_htab.c
  *
  * SMP scalability work:
  *    Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
- * 
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
@@ -14,11 +14,13 @@
 #include <asm/pgtable.h>
 #include <asm/mmu.h>
 #include <asm/mmu_context.h>
-#include <asm/iSeries/HvCallHpt.h>
 #include <asm/abs_addr.h>
 #include <linux/spinlock.h>
 
-static spinlock_t iSeries_hlocks[64] __cacheline_aligned_in_smp = { [0 ... 63] = SPIN_LOCK_UNLOCKED};
+#include "call_hpt.h"
+
+static spinlock_t iSeries_hlocks[64] __cacheline_aligned_in_smp =
+        { [0 ... 63] = SPIN_LOCK_UNLOCKED};
 
 /*
  * Very primitive algorithm for picking up a lock
@@ -84,6 +86,25 @@ static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
         return (secondary << 3) | (slot & 7);
 }
 
+long iSeries_hpte_bolt_or_insert(unsigned long hpte_group,
+                unsigned long va, unsigned long prpn, unsigned long vflags,
+                unsigned long rflags)
+{
+        long slot;
+        hpte_t lhpte;
+
+        slot = HvCallHpt_findValid(&lhpte, va >> PAGE_SHIFT);
+
+        if (lhpte.v & HPTE_V_VALID) {
+                /* Bolt the existing HPTE */
+                HvCallHpt_setSwBits(slot, 0x10, 0);
+                HvCallHpt_setPp(slot, PP_RWXX);
+                return 0;
+        }
+
+        return iSeries_hpte_insert(hpte_group, va, prpn, vflags, rflags);
+}
+
 static unsigned long iSeries_hpte_getword0(unsigned long slot)
 {
         hpte_t hpte;
@@ -107,7 +128,7 @@ static long iSeries_hpte_remove(unsigned long hpte_group)
                 hpte_v = iSeries_hpte_getword0(hpte_group + slot_offset);
 
                 if (! (hpte_v & HPTE_V_BOLTED)) {
-                        HvCallHpt_invalidateSetSwBitsGet(hpte_group + 
+                        HvCallHpt_invalidateSetSwBitsGet(hpte_group +
                                                          slot_offset, 0, 0);
                         iSeries_hunlock(hpte_group);
                         return i;
@@ -124,9 +145,9 @@ static long iSeries_hpte_remove(unsigned long hpte_group)
 
 /*
  * The HyperVisor expects the "flags" argument in this form:
- *      bits  0..59 : reserved
- *      bit      60 : N
- *      bits 61..63 : PP2,PP1,PP0
+ *      bits  0..59 : reserved
+ *      bit      60 : N
+ *      bits 61..63 : PP2,PP1,PP0
  */
 static long iSeries_hpte_updatepp(unsigned long slot, unsigned long newpp,
                                   unsigned long va, int large, int local)
@@ -152,7 +173,7 @@ static long iSeries_hpte_updatepp(unsigned long slot, unsigned long newpp,
 }
 
 /*
- * Functions used to find the PTE for a particular virtual address. 
+ * Functions used to find the PTE for a particular virtual address.
  * Only used during boot when bolting pages.
  *
  * Input : vpn      : virtual page number
@@ -170,7 +191,7 @@ static long iSeries_hpte_find(unsigned long vpn)
          * 0x00000000xxxxxxxx : Entry found in primary group, slot x
          * 0x80000000xxxxxxxx : Entry found in secondary group, slot x
          */
-        slot = HvCallHpt_findValid(&hpte, vpn); 
+        slot = HvCallHpt_findValid(&hpte, vpn);
         if (hpte.v & HPTE_V_VALID) {
                 if (slot < 0) {
                         slot &= 0x7fffffffffffffff;
@@ -197,7 +218,7 @@ static void iSeries_hpte_updateboltedpp(unsigned long newpp, unsigned long ea)
         vsid = get_kernel_vsid(ea);
         va = (vsid << 28) | (ea & 0x0fffffff);
         vpn = va >> PAGE_SHIFT;
-        slot = iSeries_hpte_find(vpn); 
+        slot = iSeries_hpte_find(vpn);
         if (slot == -1)
                 panic("updateboltedpp: Could not find page to bolt\n");
         HvCallHpt_setPp(slot, newpp);
@@ -215,7 +236,7 @@ static void iSeries_hpte_invalidate(unsigned long slot, unsigned long va,
         iSeries_hlock(slot);
 
         hpte_v = iSeries_hpte_getword0(slot);
-        
+
         if ((HPTE_V_AVPN_VAL(hpte_v) == avpn) && (hpte_v & HPTE_V_VALID))
                 HvCallHpt_invalidateSetSwBitsGet(slot, 0, 0);
 
@@ -230,7 +251,7 @@ void hpte_init_iSeries(void)
         ppc_md.hpte_updatepp    = iSeries_hpte_updatepp;
         ppc_md.hpte_updateboltedpp = iSeries_hpte_updateboltedpp;
         ppc_md.hpte_insert      = iSeries_hpte_insert;
-        ppc_md.hpte_remove      = iSeries_hpte_remove;
+        ppc_md.hpte_remove      = iSeries_hpte_remove;
 
         htab_finish_init();
 }
diff --git a/arch/ppc64/kernel/hvCall.S b/arch/powerpc/platforms/iseries/hvcall.S
index 4c699eab1b95..07ae6ad5f49f 100644
--- a/arch/ppc64/kernel/hvCall.S
+++ b/arch/powerpc/platforms/iseries/hvcall.S
@@ -1,7 +1,4 @@
 /*
- * arch/ppc64/kernel/hvCall.S
- *
- *
  * This file contains the code to perform calls to the
  * iSeries LPAR hypervisor
  *
@@ -13,15 +10,16 @@
 
 #include <asm/ppc_asm.h>
 #include <asm/processor.h>
+#include <asm/ptrace.h>         /* XXX for STACK_FRAME_OVERHEAD */
 
         .text
 
-/* 
+/*
  * Hypervisor call
- * 
+ *
  * Invoke the iSeries hypervisor via the System Call instruction
  * Parameters are passed to this routine in registers r3 - r10
- * 
+ *
  * r3 contains the HV function to be called
  * r4-r10 contain the operands to the hypervisor function
  *
@@ -41,11 +39,11 @@ _GLOBAL(HvCall7)
         mfcr    r0
         std     r0,-8(r1)
         stdu    r1,-(STACK_FRAME_OVERHEAD+16)(r1)
-        
+
         /* r0 = 0xffffffffffffffff indicates a hypervisor call */
-        
+
         li      r0,-1
-        
+
         /* Invoke the hypervisor */
 
         sc
@@ -55,7 +53,7 @@ _GLOBAL(HvCall7)
         mtcrf   0xff,r0
 
         /*  return to caller, return value in r3 */
-        
+
         blr
 
 _GLOBAL(HvCall0Ret16)
@@ -92,7 +90,5 @@ _GLOBAL(HvCall7Ret16)
         ld      r0,-8(r1)
         mtcrf   0xff,r0
         ld      r31,-16(r1)
-        
-        blr
-
 
+        blr
diff --git a/arch/ppc64/kernel/HvCall.c b/arch/powerpc/platforms/iseries/hvlog.c
index b772e65b57a2..f61e2e9ac9ec 100644
--- a/arch/ppc64/kernel/HvCall.c
+++ b/arch/powerpc/platforms/iseries/hvlog.c
@@ -1,5 +1,4 @@
 /*
- * HvCall.c
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  * 
  * This program is free software; you can redistribute it and/or modify
diff --git a/arch/ppc64/kernel/HvLpConfig.c b/arch/powerpc/platforms/iseries/hvlpconfig.c
index cb1d6473203c..dc28621aea0d 100644
--- a/arch/ppc64/kernel/HvLpConfig.c
+++ b/arch/powerpc/platforms/iseries/hvlpconfig.c
@@ -1,5 +1,4 @@
 /*
- * HvLpConfig.c
  * Copyright (C) 2001  Kyle A. Lucke, IBM Corporation
  * 
  * This program is free software; you can redistribute it and/or modify
diff --git a/arch/ppc64/kernel/iSeries_iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index f8ff1bb054dc..1db26d8be640 100644
--- a/arch/ppc64/kernel/iSeries_iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -1,6 +1,4 @@
 /*
- * arch/ppc64/kernel/iSeries_iommu.c
- *
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
  *
  * Rewrite, cleanup:
@@ -30,9 +28,11 @@
 #include <linux/list.h>
 
 #include <asm/iommu.h>
+#include <asm/tce.h>
 #include <asm/machdep.h>
+#include <asm/abs_addr.h>
+#include <asm/pci-bridge.h>
 #include <asm/iSeries/HvCallXm.h>
-#include <asm/iSeries/iSeries_pci.h>
 
 extern struct list_head iSeries_Global_Device_List;
 
@@ -90,15 +90,16 @@ static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages)
  */
 static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
 {
-        struct iSeries_Device_Node *dp;
-
-        list_for_each_entry(dp, &iSeries_Global_Device_List, Device_List) {
-                if ((dp->iommu_table != NULL) &&
-                    (dp->iommu_table->it_type == TCE_PCI) &&
-                    (dp->iommu_table->it_offset == tbl->it_offset) &&
-                    (dp->iommu_table->it_index == tbl->it_index) &&
-                    (dp->iommu_table->it_size == tbl->it_size))
-                        return dp->iommu_table;
+        struct pci_dn *pdn;
+
+        list_for_each_entry(pdn, &iSeries_Global_Device_List, Device_List) {
+                struct iommu_table *it = pdn->iommu_table;
+                if ((it != NULL) &&
+                    (it->it_type == TCE_PCI) &&
+                    (it->it_offset == tbl->it_offset) &&
+                    (it->it_index == tbl->it_index) &&
+                    (it->it_size == tbl->it_size))
+                        return it;
         }
         return NULL;
 }
@@ -112,7 +113,7 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
  * 2. TCE table per Bus.
  * 3. TCE Table per IOA.
  */
-static void iommu_table_getparms(struct iSeries_Device_Node* dn,
+static void iommu_table_getparms(struct pci_dn *pdn,
                                  struct iommu_table* tbl)
 {
         struct iommu_table_cb *parms;
@@ -123,11 +124,11 @@ static void iommu_table_getparms(struct iSeries_Device_Node* dn,
 
         memset(parms, 0, sizeof(*parms));
 
-        parms->itc_busno = ISERIES_BUS(dn);
-        parms->itc_slotno = dn->LogicalSlot;
+        parms->itc_busno = pdn->busno;
+        parms->itc_slotno = pdn->LogicalSlot;
         parms->itc_virtbus = 0;
 
-        HvCallXm_getTceTableParms(ISERIES_HV_ADDR(parms));
+        HvCallXm_getTceTableParms(iseries_hv_addr(parms));
 
         if (parms->itc_size == 0)
                 panic("PCI_DMA: parms->size is zero, parms is 0x%p", parms);
@@ -144,18 +145,19 @@ static void iommu_table_getparms(struct iSeries_Device_Node* dn,
 }
 
 
-void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn)
+void iommu_devnode_init_iSeries(struct device_node *dn)
 {
         struct iommu_table *tbl;
+        struct pci_dn *pdn = PCI_DN(dn);
 
         tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
 
-        iommu_table_getparms(dn, tbl);
+        iommu_table_getparms(pdn, tbl);
 
         /* Look for existing tce table */
-        dn->iommu_table = iommu_table_find(tbl);
-        if (dn->iommu_table == NULL)
-                dn->iommu_table = iommu_init_table(tbl);
+        pdn->iommu_table = iommu_table_find(tbl);
+        if (pdn->iommu_table == NULL)
+                pdn->iommu_table = iommu_init_table(tbl);
         else
                 kfree(tbl);
 }
diff --git a/include/asm-ppc64/iSeries/ItIplParmsReal.h b/arch/powerpc/platforms/iseries/ipl_parms.h
index ae3417dc599e..77c135ddbf1b 100644
--- a/include/asm-ppc64/iSeries/ItIplParmsReal.h
+++ b/arch/powerpc/platforms/iseries/ipl_parms.h
@@ -1,5 +1,4 @@
 /*
- * ItIplParmsReal.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _ITIPLPARMSREAL_H
-#define _ITIPLPARMSREAL_H
+#ifndef _ISERIES_IPL_PARMS_H
+#define _ISERIES_IPL_PARMS_H
 
 /*
  *      This struct maps the IPL Parameters DMA'd from the SP.
@@ -68,4 +67,4 @@ struct ItIplParmsReal {
 
 extern struct ItIplParmsReal    xItIplParmsReal;
 
-#endif /* _ITIPLPARMSREAL_H */
+#endif /* _ISERIES_IPL_PARMS_H */
diff --git a/arch/ppc64/kernel/iSeries_irq.c b/arch/powerpc/platforms/iseries/irq.c
index 77376c1bd611..937ac99b9d33 100644
--- a/arch/ppc64/kernel/iSeries_irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -38,9 +38,10 @@
 #include <asm/ppcdebug.h>
 #include <asm/iSeries/HvTypes.h>
 #include <asm/iSeries/HvLpEvent.h>
-#include <asm/iSeries/HvCallPci.h>
 #include <asm/iSeries/HvCallXm.h>
-#include <asm/iSeries/iSeries_irq.h>
+
+#include "irq.h"
+#include "call_pci.h"
 
 /* This maps virtual irq numbers to real irqs */
 unsigned int virt_irq_to_real_map[NR_IRQS];
@@ -351,3 +352,15 @@ int __init iSeries_allocate_IRQ(HvBusNumber busNumber,
         irq_desc[virtirq].handler = &iSeries_IRQ_handler;
         return virtirq;
 }
+
+int virt_irq_create_mapping(unsigned int real_irq)
+{
+        BUG(); /* Don't call this on iSeries, yet */
+
+        return 0;
+}
+
+void virt_irq_init(void)
+{
+        return;
+}
diff --git a/include/asm-ppc64/iSeries/iSeries_irq.h b/arch/powerpc/platforms/iseries/irq.h
index 6c9767ac1302..5f643f16ecc0 100644
--- a/include/asm-ppc64/iSeries/iSeries_irq.h
+++ b/arch/powerpc/platforms/iseries/irq.h
@@ -1,8 +1,8 @@
-#ifndef __ISERIES_IRQ_H__
-#define __ISERIES_IRQ_H__
+#ifndef _ISERIES_IRQ_H
+#define _ISERIES_IRQ_H
 
 extern void iSeries_init_IRQ(void);
 extern int  iSeries_allocate_IRQ(HvBusNumber, HvSubBusNumber, HvAgentId);
 extern void iSeries_activate_IRQs(void);
 
-#endif /* __ISERIES_IRQ_H__ */
+#endif /* _ISERIES_IRQ_H */
diff --git a/arch/powerpc/platforms/iseries/ksyms.c b/arch/powerpc/platforms/iseries/ksyms.c
new file mode 100644
index 000000000000..f271b3539721
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/ksyms.c
@@ -0,0 +1,27 @@
+/*
+ * (C) 2001-2005 PPC 64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+#include <linux/module.h>
+
+#include <asm/hw_irq.h>
+#include <asm/iSeries/HvCallSc.h>
+
+EXPORT_SYMBOL(HvCall0);
+EXPORT_SYMBOL(HvCall1);
+EXPORT_SYMBOL(HvCall2);
+EXPORT_SYMBOL(HvCall3);
+EXPORT_SYMBOL(HvCall4);
+EXPORT_SYMBOL(HvCall5);
+EXPORT_SYMBOL(HvCall6);
+EXPORT_SYMBOL(HvCall7);
+
+#ifdef CONFIG_SMP
+EXPORT_SYMBOL(local_get_flags);
+EXPORT_SYMBOL(local_irq_disable);
+EXPORT_SYMBOL(local_irq_restore);
+#endif
diff --git a/arch/ppc64/kernel/LparData.c b/arch/powerpc/platforms/iseries/lpardata.c
index 0a9c23ca2f0c..ed2ffee6f731 100644
--- a/arch/ppc64/kernel/LparData.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * Copyright 2001 Mike Corrigan, IBM Corp
  *
  * This program is free software; you can redistribute it and/or
@@ -19,18 +19,18 @@
 #include <asm/lppaca.h>
 #include <asm/iSeries/ItLpRegSave.h>
 #include <asm/paca.h>
-#include <asm/iSeries/HvReleaseData.h>
 #include <asm/iSeries/LparMap.h>
-#include <asm/iSeries/ItVpdAreas.h>
-#include <asm/iSeries/ItIplParmsReal.h>
 #include <asm/iSeries/ItExtVpdPanel.h>
 #include <asm/iSeries/ItLpQueue.h>
-#include <asm/iSeries/IoHriProcessorVpd.h>
-#include <asm/iSeries/ItSpCommArea.h>
 
+#include "vpd_areas.h"
+#include "spcomm_area.h"
+#include "ipl_parms.h"
+#include "processor_vpd.h"
+#include "release_data.h"
 
-/* The HvReleaseData is the root of the information shared between 
- * the hypervisor and Linux.  
+/* The HvReleaseData is the root of the information shared between
+ * the hypervisor and Linux.
  */
 struct HvReleaseData hvReleaseData = {
         .xDesc = 0xc8a5d9c4,    /* "HvRD" ebcdic */
@@ -79,7 +79,7 @@ extern void trap_0e_iSeries(void);
 extern void performance_monitor_iSeries(void);
 extern void data_access_slb_iSeries(void);
 extern void instruction_access_slb_iSeries(void);
-        
+
 struct ItLpNaca itLpNaca = {
         .xDesc = 0xd397d581,            /* "LpNa" ebcdic */
         .xSize = 0x0400,                /* size of ItLpNaca */
@@ -106,7 +106,7 @@ struct ItLpNaca itLpNaca = {
         .xLoadAreaChunks = 0,           /* chunks for load area */
         .xPaseSysCallCRMask = 0,        /* PASE mask */
         .xSlicSegmentTablePtr = 0,      /* seg table */
-        .xOldLpQueue = { 0 },           /* Old LP Queue */
+        .xOldLpQueue = { 0 },           /* Old LP Queue */
         .xInterruptHdlr = {
                 (u64)system_reset_iSeries,      /* 0x100 System Reset */
                 (u64)machine_check_iSeries,     /* 0x200 Machine Check */
@@ -134,7 +134,7 @@ struct ItLpNaca itLpNaca = {
 EXPORT_SYMBOL(itLpNaca);
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
-struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data"))); 
+struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
@@ -151,7 +151,7 @@ struct IoHriProcessorVpd xIoHriProcessorVpd[maxPhysicalProcessors] = {
                 .xPVR = 0x3600
         }
 };
-        
+
 /* Space for Main Store Vpd 27,200 bytes */
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 u64    xMsVpd[3400] __attribute__((__section__(".data")));
@@ -197,7 +197,7 @@ struct ItVpdAreas itVpdAreas = {
                 26992,                  /*       7 length of MS VPD */
                 0,                      /*       8 */
                 sizeof(struct ItLpNaca),/*       9 length of LP Naca */
-                0,                      /*      10 */
+                0,                      /*      10 */
                 256,                    /*      11 length of Recovery Log Buf */
                 sizeof(struct SpCommArea), /*   12 length of SP Comm Area */
                 0,0,0,                  /* 13 - 15 */
@@ -207,7 +207,7 @@ struct ItVpdAreas itVpdAreas = {
                 0,0                     /* 24 - 25 */
                 },
         .xSlicVpdAdrs = {                       /* VPD addresses */
-                0,0,0,                  /*       0 -  2 */
+                0,0,0,                  /*       0 -  2 */
                 &xItExtVpdPanel,        /*       3 Extended VPD */
                 &paca[0],               /*       4 first Paca */
                 0,                      /*       5 */
diff --git a/arch/ppc64/kernel/ItLpQueue.c b/arch/powerpc/platforms/iseries/lpevents.c
index 4231861288a3..54c7753dbe05 100644
--- a/arch/ppc64/kernel/ItLpQueue.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -1,5 +1,4 @@
 /*
- * ItLpQueue.c
  * Copyright (C) 2001 Mike Corrigan  IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -14,11 +13,14 @@
 #include <linux/bootmem.h>
 #include <linux/seq_file.h>
 #include <linux/proc_fs.h>
+#include <linux/module.h>
+
 #include <asm/system.h>
 #include <asm/paca.h>
 #include <asm/iSeries/ItLpQueue.h>
 #include <asm/iSeries/HvLpEvent.h>
 #include <asm/iSeries/HvCallEvent.h>
+#include <asm/iSeries/ItLpNaca.h>
 
 /*
  * The LpQueue is used to pass event data from the hypervisor to
@@ -43,7 +45,8 @@ static char *event_types[HvLpEvent_Type_NumTypes] = {
 };
 
 /* Array of LpEvent handler functions */
-extern LpEventHandler lpEventHandler[HvLpEvent_Type_NumTypes];
+static LpEventHandler lpEventHandler[HvLpEvent_Type_NumTypes];
+static unsigned lpEventHandlerPaths[HvLpEvent_Type_NumTypes];
 
 static struct HvLpEvent * get_next_hvlpevent(void)
 {
@@ -181,11 +184,7 @@ void setup_hvlpevent_queue(void)
 {
         void *eventStack;
 
-        /*
-         * Allocate a page for the Event Stack. The Hypervisor needs the
-         * absolute real address, so we subtract out the KERNELBASE and add
-         * in the absolute real address of the kernel load area.
-         */
+        /* Allocate a page for the Event Stack. */
         eventStack = alloc_bootmem_pages(LpEventStackSize);
         memset(eventStack, 0, LpEventStackSize);
 
@@ -199,6 +198,70 @@ void setup_hvlpevent_queue(void)
         hvlpevent_queue.xIndex = 0;
 }
 
+/* Register a handler for an LpEvent type */
+int HvLpEvent_registerHandler(HvLpEvent_Type eventType, LpEventHandler handler)
+{
+        if (eventType < HvLpEvent_Type_NumTypes) {
+                lpEventHandler[eventType] = handler;
+                return 0;
+        }
+        return 1;
+}
+EXPORT_SYMBOL(HvLpEvent_registerHandler);
+
+int HvLpEvent_unregisterHandler(HvLpEvent_Type eventType)
+{
+        might_sleep();
+
+        if (eventType < HvLpEvent_Type_NumTypes) {
+                if (!lpEventHandlerPaths[eventType]) {
+                        lpEventHandler[eventType] = NULL;
+                        /*
+                         * We now sleep until all other CPUs have scheduled.
+                         * This ensures that the deletion is seen by all
+                         * other CPUs, and that the deleted handler isn't
+                         * still running on another CPU when we return.
+                         */
+                        synchronize_rcu();
+                        return 0;
+                }
+        }
+        return 1;
+}
+EXPORT_SYMBOL(HvLpEvent_unregisterHandler);
+
+/*
+ * lpIndex is the partition index of the target partition.
+ * needed only for VirtualIo, VirtualLan and SessionMgr.  Zero
+ * indicates to use our partition index - for the other types.
+ */
+int HvLpEvent_openPath(HvLpEvent_Type eventType, HvLpIndex lpIndex)
+{
+        if ((eventType < HvLpEvent_Type_NumTypes) &&
+                        lpEventHandler[eventType]) {
+                if (lpIndex == 0)
+                        lpIndex = itLpNaca.xLpIndex;
+                HvCallEvent_openLpEventPath(lpIndex, eventType);
+                ++lpEventHandlerPaths[eventType];
+                return 0;
+        }
+        return 1;
+}
+
+int HvLpEvent_closePath(HvLpEvent_Type eventType, HvLpIndex lpIndex)
+{
+        if ((eventType < HvLpEvent_Type_NumTypes) &&
+                        lpEventHandler[eventType] &&
+                        lpEventHandlerPaths[eventType]) {
+                if (lpIndex == 0)
+                        lpIndex = itLpNaca.xLpIndex;
+                HvCallEvent_closeLpEventPath(lpIndex, eventType);
+                --lpEventHandlerPaths[eventType];
+                return 0;
+        }
+        return 1;
+}
+
 static int proc_lpevents_show(struct seq_file *m, void *v)
 {
         int cpu, i;
diff --git a/include/asm-ppc64/iSeries/IoHriMainStore.h b/arch/powerpc/platforms/iseries/main_store.h
index 45ed3ea67d06..74f6889f834f 100644
--- a/include/asm-ppc64/iSeries/IoHriMainStore.h
+++ b/arch/powerpc/platforms/iseries/main_store.h
@@ -1,5 +1,4 @@
 /*
- * IoHriMainStore.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,8 +16,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
-#ifndef _IOHRIMAINSTORE_H
-#define _IOHRIMAINSTORE_H
+#ifndef _ISERIES_MAIN_STORE_H
+#define _ISERIES_MAIN_STORE_H
 
 /* Main Store Vpd for Condor,iStar,sStar */
 struct IoHriMainStoreSegment4 {
@@ -163,4 +162,4 @@ struct IoHriMainStoreSegment5 {
 
 extern u64      xMsVpd[];
 
-#endif  /* _IOHRIMAINSTORE_H */
+#endif  /* _ISERIES_MAIN_STORE_H */
diff --git a/arch/ppc64/kernel/mf.c b/arch/powerpc/platforms/iseries/mf.c
index ef4a338ebd01..e5de31aa0015 100644
--- a/arch/ppc64/kernel/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -1,29 +1,28 @@
 /*
-  * mf.c
-  * Copyright (C) 2001 Troy D. Armstrong  IBM Corporation
-  * Copyright (C) 2004-2005 Stephen Rothwell  IBM Corporation
-  *
-  * This modules exists as an interface between a Linux secondary partition
-  * running on an iSeries and the primary partition's Virtual Service
-  * Processor (VSP) object.  The VSP has final authority over powering on/off
-  * all partitions in the iSeries.  It also provides miscellaneous low-level
-  * machine facility type operations.
-  *
-  *
-  * This program is free software; you can redistribute it and/or modify
-  * it under the terms of the GNU General Public License as published by
-  * the Free Software Foundation; either version 2 of the License, or
-  * (at your option) any later version.
-  *
-  * This program is distributed in the hope that it will be useful,
-  * but WITHOUT ANY WARRANTY; without even the implied warranty of
-  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  * GNU General Public License for more details.
-  *
-  * You should have received a copy of the GNU General Public License
-  * along with this program; if not, write to the Free Software
-  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
-  */
+ * Copyright (C) 2001 Troy D. Armstrong  IBM Corporation
+ * Copyright (C) 2004-2005 Stephen Rothwell  IBM Corporation
+ *
+ * This modules exists as an interface between a Linux secondary partition
+ * running on an iSeries and the primary partition's Virtual Service
+ * Processor (VSP) object.  The VSP has final authority over powering on/off
+ * all partitions in the iSeries.  It also provides miscellaneous low-level
+ * machine facility type operations.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
 
 #include <linux/types.h>
 #include <linux/errno.h>
@@ -33,15 +32,21 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/bcd.h>
+#include <linux/rtc.h>
 
 #include <asm/time.h>
 #include <asm/uaccess.h>
 #include <asm/paca.h>
+#include <asm/abs_addr.h>
 #include <asm/iSeries/vio.h>
 #include <asm/iSeries/mf.h>
 #include <asm/iSeries/HvLpConfig.h>
 #include <asm/iSeries/ItLpQueue.h>
 
+#include "setup.h"
+
+extern int piranha_simulator;
+
 /*
  * This is the structure layout for the Machine Facilites LPAR event
  * flows.
@@ -1061,10 +1066,10 @@ static void mf_getSrcHistory(char *buffer, int size)
         ev->event.data.vsp_cmd.lp_index = HvLpConfig_getLpIndex();
         ev->event.data.vsp_cmd.result_code = 0xFF;
         ev->event.data.vsp_cmd.reserved = 0;
-        ev->event.data.vsp_cmd.sub_data.page[0] = ISERIES_HV_ADDR(pages[0]);
-        ev->event.data.vsp_cmd.sub_data.page[1] = ISERIES_HV_ADDR(pages[1]);
-        ev->event.data.vsp_cmd.sub_data.page[2] = ISERIES_HV_ADDR(pages[2]);
-        ev->event.data.vsp_cmd.sub_data.page[3] = ISERIES_HV_ADDR(pages[3]);
+        ev->event.data.vsp_cmd.sub_data.page[0] = iseries_hv_addr(pages[0]);
+        ev->event.data.vsp_cmd.sub_data.page[1] = iseries_hv_addr(pages[1]);
+        ev->event.data.vsp_cmd.sub_data.page[2] = iseries_hv_addr(pages[2]);
+        ev->event.data.vsp_cmd.sub_data.page[3] = iseries_hv_addr(pages[3]);
         mb();
         if (signal_event(ev) != 0)
                 return;
@@ -1279,3 +1284,38 @@ static int __init mf_proc_init(void)
 __initcall(mf_proc_init);
 
 #endif /* CONFIG_PROC_FS */
+
+/*
+ * Get the RTC from the virtual service processor
+ * This requires flowing LpEvents to the primary partition
+ */
+void iSeries_get_rtc_time(struct rtc_time *rtc_tm)
+{
+        if (piranha_simulator)
+                return;
+
+        mf_get_rtc(rtc_tm);
+        rtc_tm->tm_mon--;
+}
+
+/*
+ * Set the RTC in the virtual service processor
+ * This requires flowing LpEvents to the primary partition
+ */
+int iSeries_set_rtc_time(struct rtc_time *tm)
+{
+        mf_set_rtc(tm);
+        return 0;
+}
+
+unsigned long iSeries_get_boot_time(void)
+{
+        struct rtc_time tm;
+
+        if (piranha_simulator)
+                return 0;
+
+        mf_get_boot_rtc(&tm);
+        return mktime(tm.tm_year + 1900, tm.tm_mon, tm.tm_mday,
+                      tm.tm_hour, tm.tm_min, tm.tm_sec);
+}
diff --git a/arch/powerpc/platforms/iseries/misc.S b/arch/powerpc/platforms/iseries/misc.S
new file mode 100644
index 000000000000..09f14522e176
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/misc.S
@@ -0,0 +1,55 @@
+/*
+ * This file contains miscellaneous low-level functions.
+ *    Copyright (C) 1995-2005 IBM Corp
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
+ * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <asm/processor.h>
+#include <asm/asm-offsets.h>
+
+        .text
+
+/* unsigned long local_save_flags(void) */
+_GLOBAL(local_get_flags)
+        lbz     r3,PACAPROCENABLED(r13)
+        blr
+
+/* unsigned long local_irq_disable(void) */
+_GLOBAL(local_irq_disable)
+        lbz     r3,PACAPROCENABLED(r13)
+        li      r4,0
+        stb     r4,PACAPROCENABLED(r13)
+        blr                     /* Done */
+
+/* void local_irq_restore(unsigned long flags) */
+_GLOBAL(local_irq_restore)
+        lbz     r5,PACAPROCENABLED(r13)
+         /* Check if things are setup the way we want _already_. */
+        cmpw    0,r3,r5
+        beqlr
+        /* are we enabling interrupts? */
+        cmpdi   0,r3,0
+        stb     r3,PACAPROCENABLED(r13)
+        beqlr
+        /* Check pending interrupts */
+        /*   A decrementer, IPI or PMC interrupt may have occurred
+         *   while we were in the hypervisor (which enables) */
+        ld      r4,PACALPPACA+LPPACAANYINT(r13)
+        cmpdi   r4,0
+        beqlr
+
+        /*
+         * Handle pending interrupts in interrupt context
+         */
+        li      r0,0x5555
+        sc
+        blr
diff --git a/arch/ppc64/kernel/iSeries_pci.c b/arch/powerpc/platforms/iseries/pci.c
index fbc273c32bcc..959e59fd9c11 100644
--- a/arch/ppc64/kernel/iSeries_pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -1,28 +1,26 @@
 /*
- * iSeries_pci.c
- *
  * Copyright (C) 2001 Allan Trautman, IBM Corporation
  *
  * iSeries specific routines for PCI.
- * 
+ *
  * Based on code from pci.c and iSeries_pci.c 32bit
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 #include <linux/kernel.h>
-#include <linux/list.h> 
+#include <linux/list.h>
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -36,21 +34,23 @@
 #include <asm/pci-bridge.h>
 #include <asm/ppcdebug.h>
 #include <asm/iommu.h>
+#include <asm/abs_addr.h>
 
-#include <asm/iSeries/HvCallPci.h>
 #include <asm/iSeries/HvCallXm.h>
-#include <asm/iSeries/iSeries_irq.h>
-#include <asm/iSeries/iSeries_pci.h>
 #include <asm/iSeries/mf.h>
 
+#include <asm/ppc-pci.h>
+
+#include "irq.h"
 #include "pci.h"
+#include "call_pci.h"
 
 extern unsigned long io_page_mask;
 
 /*
- * Forward declares of prototypes. 
+ * Forward declares of prototypes.
  */
-static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn);
+static struct device_node *find_Device_Node(int bus, int devfn);
 static void scan_PHB_slots(struct pci_controller *Phb);
 static void scan_EADS_bridge(HvBusNumber Bus, HvSubBusNumber SubBus, int IdSel);
 static int scan_bridge_slot(HvBusNumber Bus, struct HvCallPci_BridgeInfo *Info);
@@ -68,7 +68,7 @@ static long Pci_Cfg_Write_Count;
 #endif
 static long Pci_Error_Count;
 
-static int Pci_Retry_Max = 3;   /* Only retry 3 times  */       
+static int Pci_Retry_Max = 3;   /* Only retry 3 times  */
 static int Pci_Error_Flag = 1;  /* Set Retry Error on. */
 
 static struct pci_ops iSeries_pci_ops;
@@ -87,7 +87,7 @@ static long current_iomm_table_entry;
 /*
  * Lookup Tables.
  */
-static struct iSeries_Device_Node **iomm_table;
+static struct device_node **iomm_table;
 static u8 *iobar_table;
 
 /*
@@ -179,7 +179,7 @@ static void allocate_device_bars(struct pci_dev *dev)
         for (bar_num = 0; bar_num <= PCI_ROM_RESOURCE; ++bar_num) {
                 bar_res = &dev->resource[bar_num];
                 iomm_table_allocate_entry(dev, bar_num);
-        }
+        }
 }
 
 /*
@@ -201,29 +201,31 @@ static void pci_Log_Error(char *Error_Text, int Bus, int SubBus,
 /*
  * build_device_node(u16 Bus, int SubBus, u8 DevFn)
  */
-static struct iSeries_Device_Node *build_device_node(HvBusNumber Bus,
+static struct device_node *build_device_node(HvBusNumber Bus,
                 HvSubBusNumber SubBus, int AgentId, int Function)
 {
-        struct iSeries_Device_Node *node;
+        struct device_node *node;
+        struct pci_dn *pdn;
 
         PPCDBG(PPCDBG_BUSWALK,
                         "-build_device_node 0x%02X.%02X.%02X Function: %02X\n",
                         Bus, SubBus, AgentId, Function);
 
-        node = kmalloc(sizeof(struct iSeries_Device_Node), GFP_KERNEL);
+        node = kmalloc(sizeof(struct device_node), GFP_KERNEL);
         if (node == NULL)
                 return NULL;
-
-        memset(node, 0, sizeof(struct iSeries_Device_Node));
-        list_add_tail(&node->Device_List, &iSeries_Global_Device_List);
-#if 0
-        node->DsaAddr = ((u64)Bus << 48) + ((u64)SubBus << 40) + ((u64)0x10 << 32);
-#endif
-        node->DsaAddr.DsaAddr = 0;
-        node->DsaAddr.Dsa.busNumber = Bus;
-        node->DsaAddr.Dsa.subBusNumber = SubBus;
-        node->DsaAddr.Dsa.deviceId = 0x10;
-        node->DevFn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(AgentId), Function);
+        memset(node, 0, sizeof(struct device_node));
+        pdn = kzalloc(sizeof(*pdn), GFP_KERNEL);
+        if (pdn == NULL) {
+                kfree(node);
+                return NULL;
+        }
+        node->data = pdn;
+        pdn->node = node;
+        list_add_tail(&pdn->Device_List, &iSeries_Global_Device_List);
+        pdn->busno = Bus;
+        pdn->bussubno = SubBus;
+        pdn->devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(AgentId), Function);
         return node;
 }
 
@@ -278,28 +280,28 @@ unsigned long __init find_and_init_phbs(void)
 
 /*
  * iSeries_pcibios_init
- *  
+ *
  * Chance to initialize and structures or variable before PCI Bus walk.
  */
 void iSeries_pcibios_init(void)
 {
-        PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Entry.\n"); 
+        PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Entry.\n");
         iomm_table_initialize();
         find_and_init_phbs();
         io_page_mask = -1;
-        PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Exit.\n"); 
+        PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Exit.\n");
 }
 
 /*
- * iSeries_pci_final_fixup(void)  
+ * iSeries_pci_final_fixup(void)
  */
 void __init iSeries_pci_final_fixup(void)
 {
         struct pci_dev *pdev = NULL;
-        struct iSeries_Device_Node *node;
-        int DeviceCount = 0;
+        struct device_node *node;
+        int DeviceCount = 0;
 
-        PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup Entry.\n"); 
+        PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup Entry.\n");
 
         /* Fix up at the device node and pci_dev relationship */
         mf_display_src(0xC9000100);
@@ -313,7 +315,7 @@ void __init iSeries_pci_final_fixup(void)
                 if (node != NULL) {
                         ++DeviceCount;
                         pdev->sysdata = (void *)node;
-                        node->PciDev = pdev;
+                        PCI_DN(node)->pcidev = pdev;
                         PPCDBG(PPCDBG_BUSWALK,
                                         "pdev 0x%p <==> DevNode 0x%p\n",
                                         pdev, node);
@@ -323,7 +325,7 @@ void __init iSeries_pci_final_fixup(void)
                 } else
                         printk("PCI: Device Tree not found for 0x%016lX\n",
                                         (unsigned long)pdev);
-                pdev->irq = node->Irq;
+                pdev->irq = PCI_DN(node)->Irq;
         }
         iSeries_activate_IRQs();
         mf_display_src(0xC9000200);
@@ -332,24 +334,24 @@ void __init iSeries_pci_final_fixup(void)
 void pcibios_fixup_bus(struct pci_bus *PciBus)
 {
         PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup_bus(0x%04X) Entry.\n",
-                        PciBus->number); 
+                        PciBus->number);
 }
 
 void pcibios_fixup_resources(struct pci_dev *pdev)
 {
         PPCDBG(PPCDBG_BUSWALK, "fixup_resources pdev %p\n", pdev);
-}   
+}
 
 /*
- * Loop through each node function to find usable EADs bridges.  
+ * Loop through each node function to find usable EADs bridges.
  */
 static void scan_PHB_slots(struct pci_controller *Phb)
 {
         struct HvCallPci_DeviceInfo *DevInfo;
-        HvBusNumber bus = Phb->local_number;    /* System Bus */        
+        HvBusNumber bus = Phb->local_number;    /* System Bus */
         const HvSubBusNumber SubBus = 0;        /* EADs is always 0. */
         int HvRc = 0;
-        int IdSel;      
+        int IdSel;
         const int MaxAgents = 8;
 
         DevInfo = (struct HvCallPci_DeviceInfo*)
@@ -358,11 +360,11 @@ static void scan_PHB_slots(struct pci_controller *Phb)
                 return;
 
         /*
-         * Probe for EADs Bridges      
+         * Probe for EADs Bridges
          */
         for (IdSel = 1; IdSel < MaxAgents; ++IdSel) {
-                HvRc = HvCallPci_getDeviceInfo(bus, SubBus, IdSel,
-                                ISERIES_HV_ADDR(DevInfo),
+                HvRc = HvCallPci_getDeviceInfo(bus, SubBus, IdSel,
+                                iseries_hv_addr(DevInfo),
                                 sizeof(struct HvCallPci_DeviceInfo));
                 if (HvRc == 0) {
                         if (DevInfo->deviceType == HvCallPci_NodeDevice)
@@ -393,19 +395,19 @@ static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus,
 
         /* Note: hvSubBus and irq is always be 0 at this level! */
         for (Function = 0; Function < 8; ++Function) {
-                AgentId = ISERIES_PCI_AGENTID(IdSel, Function);
+                AgentId = ISERIES_PCI_AGENTID(IdSel, Function);
                 HvRc = HvCallXm_connectBusUnit(bus, SubBus, AgentId, 0);
-                if (HvRc == 0) {
+                if (HvRc == 0) {
                         printk("found device at bus %d idsel %d func %d (AgentId %x)\n",
                                bus, IdSel, Function, AgentId);
-                        /*  Connect EADs: 0x18.00.12 = 0x00 */
+                        /*  Connect EADs: 0x18.00.12 = 0x00 */
                         PPCDBG(PPCDBG_BUSWALK,
                                         "PCI:Connect EADs: 0x%02X.%02X.%02X\n",
                                         bus, SubBus, AgentId);
-                        HvRc = HvCallPci_getBusUnitInfo(bus, SubBus, AgentId,
-                                        ISERIES_HV_ADDR(BridgeInfo),
+                        HvRc = HvCallPci_getBusUnitInfo(bus, SubBus, AgentId,
+                                        iseries_hv_addr(BridgeInfo),
                                         sizeof(struct HvCallPci_BridgeInfo));
-                        if (HvRc == 0) {
+                        if (HvRc == 0) {
                                 printk("bridge info: type %x subbus %x maxAgents %x maxsubbus %x logslot %x\n",
                                         BridgeInfo->busUnitInfo.deviceType,
                                         BridgeInfo->subBusNumber,
@@ -428,7 +430,7 @@ static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus,
                                         printk("PCI: Invalid Bridge Configuration(0x%02X)",
                                                 BridgeInfo->busUnitInfo.deviceType);
                         }
-                } else if (HvRc != 0x000B)
+                } else if (HvRc != 0x000B)
                         pci_Log_Error("EADs Connect",
                                         bus, SubBus, AgentId, HvRc);
         }
@@ -441,7 +443,7 @@ static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus,
 static int scan_bridge_slot(HvBusNumber Bus,
                 struct HvCallPci_BridgeInfo *BridgeInfo)
 {
-        struct iSeries_Device_Node *node;
+        struct device_node *node;
         HvSubBusNumber SubBus = BridgeInfo->subBusNumber;
         u16 VendorId = 0;
         int HvRc = 0;
@@ -451,16 +453,16 @@ static int scan_bridge_slot(HvBusNumber Bus,
         HvAgentId EADsIdSel = ISERIES_PCI_AGENTID(IdSel, Function);
 
         /* iSeries_allocate_IRQ.: 0x18.00.12(0xA3) */
-        Irq = iSeries_allocate_IRQ(Bus, 0, EADsIdSel);
+        Irq = iSeries_allocate_IRQ(Bus, 0, EADsIdSel);
         PPCDBG(PPCDBG_BUSWALK,
                 "PCI:- allocate and assign IRQ 0x%02X.%02X.%02X = 0x%02X\n",
                 Bus, 0, EADsIdSel, Irq);
 
         /*
-         * Connect all functions of any device found.  
+         * Connect all functions of any device found.
          */
-        for (IdSel = 1; IdSel <= BridgeInfo->maxAgents; ++IdSel) {
-                for (Function = 0; Function < 8; ++Function) {
+        for (IdSel = 1; IdSel <= BridgeInfo->maxAgents; ++IdSel) {
+                for (Function = 0; Function < 8; ++Function) {
                         HvAgentId AgentId = ISERIES_PCI_AGENTID(IdSel, Function);
                         HvRc = HvCallXm_connectBusUnit(Bus, SubBus,
                                         AgentId, Irq);
@@ -484,15 +486,15 @@ static int scan_bridge_slot(HvBusNumber Bus,
                                "PCI:- FoundDevice: 0x%02X.%02X.%02X = 0x%04X, irq %d\n",
                                Bus, SubBus, AgentId, VendorId, Irq);
                         HvRc = HvCallPci_configStore8(Bus, SubBus, AgentId,
-                                                      PCI_INTERRUPT_LINE, Irq);  
+                                                      PCI_INTERRUPT_LINE, Irq);
                         if (HvRc != 0)
                                 pci_Log_Error("PciCfgStore Irq Failed!",
                                               Bus, SubBus, AgentId, HvRc);
 
                         ++DeviceCount;
                         node = build_device_node(Bus, SubBus, EADsIdSel, Function);
-                        node->Irq = Irq;
-                        node->LogicalSlot = BridgeInfo->logicalSlotNumber;
+                        PCI_DN(node)->Irq = Irq;
+                        PCI_DN(node)->LogicalSlot = BridgeInfo->logicalSlotNumber;
 
                 } /* for (Function = 0; Function < 8; ++Function) */
         } /* for (IdSel = 1; IdSel <= MaxAgents; ++IdSel) */
@@ -542,16 +544,13 @@ EXPORT_SYMBOL(iSeries_memcpy_fromio);
 /*
  * Look down the chain to find the matching Device Device
  */
-static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn)
+static struct device_node *find_Device_Node(int bus, int devfn)
 {
-        struct list_head *pos;
+        struct pci_dn *pdn;
 
-        list_for_each(pos, &iSeries_Global_Device_List) {
-                struct iSeries_Device_Node *node =
-                        list_entry(pos, struct iSeries_Device_Node, Device_List);
-
-                if ((bus == ISERIES_BUS(node)) && (devfn == node->DevFn))
-                        return node;
+        list_for_each_entry(pdn, &iSeries_Global_Device_List, Device_List) {
+                if ((bus == pdn->busno) && (devfn == pdn->devfn))
+                        return pdn->node;
         }
         return NULL;
 }
@@ -562,12 +561,12 @@ static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn)
  * Sanity Check Node PciDev to passed pci_dev
  * If none is found, returns a NULL which the client must handle.
  */
-static struct iSeries_Device_Node *get_Device_Node(struct pci_dev *pdev)
+static struct device_node *get_Device_Node(struct pci_dev *pdev)
 {
-        struct iSeries_Device_Node *node;
+        struct device_node *node;
 
         node = pdev->sysdata;
-        if (node == NULL || node->PciDev != pdev)
+        if (node == NULL || PCI_DN(node)->pcidev != pdev)
                 node = find_Device_Node(pdev->bus->number, pdev->devfn);
         return node;
 }
@@ -595,7 +594,7 @@ static u64 hv_cfg_write_func[4] = {
 static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn,
                 int offset, int size, u32 *val)
 {
-        struct iSeries_Device_Node *node = find_Device_Node(bus->number, devfn);
+        struct device_node *node = find_Device_Node(bus->number, devfn);
         u64 fn;
         struct HvCallPci_LoadReturn ret;
 
@@ -607,7 +606,7 @@ static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn,
         }
 
         fn = hv_cfg_read_func[(size - 1) & 3];
-        HvCall3Ret16(fn, &ret, node->DsaAddr.DsaAddr, offset, 0);
+        HvCall3Ret16(fn, &ret, iseries_ds_addr(node), offset, 0);
 
         if (ret.rc != 0) {
                 *val = ~0;
@@ -625,7 +624,7 @@ static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn,
 static int iSeries_pci_write_config(struct pci_bus *bus, unsigned int devfn,
                 int offset, int size, u32 val)
 {
-        struct iSeries_Device_Node *node = find_Device_Node(bus->number, devfn);
+        struct device_node *node = find_Device_Node(bus->number, devfn);
         u64 fn;
         u64 ret;
 
@@ -635,7 +634,7 @@ static int iSeries_pci_write_config(struct pci_bus *bus, unsigned int devfn,
                 return PCIBIOS_BAD_REGISTER_NUMBER;
 
         fn = hv_cfg_write_func[(size - 1) & 3];
-        ret = HvCall4(fn, node->DsaAddr.DsaAddr, offset, val, 0);
+        ret = HvCall4(fn, iseries_ds_addr(node), offset, val, 0);
 
         if (ret != 0)
                 return PCIBIOS_DEVICE_NOT_FOUND;
@@ -657,14 +656,16 @@ static struct pci_ops iSeries_pci_ops = {
  * PCI: Device 23.90 ReadL Retry( 1)
  * PCI: Device 23.90 ReadL Retry Successful(1)
  */
-static int CheckReturnCode(char *TextHdr, struct iSeries_Device_Node *DevNode,
+static int CheckReturnCode(char *TextHdr, struct device_node *DevNode,
                 int *retry, u64 ret)
 {
         if (ret != 0)  {
+                struct pci_dn *pdn = PCI_DN(DevNode);
+
                 ++Pci_Error_Count;
                 (*retry)++;
                 printk("PCI: %s: Device 0x%04X:%02X  I/O Error(%2d): 0x%04X\n",
-                                TextHdr, DevNode->DsaAddr.Dsa.busNumber, DevNode->DevFn,
+                                TextHdr, pdn->busno, pdn->devfn,
                                 *retry, (int)ret);
                 /*
                  * Bump the retry and check for retry count exceeded.
@@ -687,14 +688,14 @@ static int CheckReturnCode(char *TextHdr, struct iSeries_Device_Node *DevNode,
  * Note: Make sure the passed variable end up on the stack to avoid
  * the exposure of being device global.
  */
-static inline struct iSeries_Device_Node *xlate_iomm_address(
+static inline struct device_node *xlate_iomm_address(
                 const volatile void __iomem *IoAddress,
                 u64 *dsaptr, u64 *BarOffsetPtr)
 {
         unsigned long OrigIoAddr;
         unsigned long BaseIoAddr;
         unsigned long TableIndex;
-        struct iSeries_Device_Node *DevNode;
+        struct device_node *DevNode;
 
         OrigIoAddr = (unsigned long __force)IoAddress;
         if ((OrigIoAddr < BASE_IO_MEMORY) || (OrigIoAddr >= max_io_memory))
@@ -705,7 +706,7 @@ static inline struct iSeries_Device_Node *xlate_iomm_address(
 
         if (DevNode != NULL) {
                 int barnum = iobar_table[TableIndex];
-                *dsaptr = DevNode->DsaAddr.DsaAddr | (barnum << 24);
+                *dsaptr = iseries_ds_addr(DevNode) | (barnum << 24);
                 *BarOffsetPtr = BaseIoAddr % IOMM_TABLE_ENTRY_SIZE;
         } else
                 panic("PCI: Invalid PCI IoAddress detected!\n");
@@ -727,7 +728,7 @@ u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
         u64 dsa;
         int retry = 0;
         struct HvCallPci_LoadReturn ret;
-        struct iSeries_Device_Node *DevNode =
+        struct device_node *DevNode =
                 xlate_iomm_address(IoAddress, &dsa, &BarOffset);
 
         if (DevNode == NULL) {
@@ -757,7 +758,7 @@ u16 iSeries_Read_Word(const volatile void __iomem *IoAddress)
         u64 dsa;
         int retry = 0;
         struct HvCallPci_LoadReturn ret;
-        struct iSeries_Device_Node *DevNode =
+        struct device_node *DevNode =
                 xlate_iomm_address(IoAddress, &dsa, &BarOffset);
 
         if (DevNode == NULL) {
@@ -788,7 +789,7 @@ u32 iSeries_Read_Long(const volatile void __iomem *IoAddress)
         u64 dsa;
         int retry = 0;
         struct HvCallPci_LoadReturn ret;
-        struct iSeries_Device_Node *DevNode =
+        struct device_node *DevNode =
                 xlate_iomm_address(IoAddress, &dsa, &BarOffset);
 
         if (DevNode == NULL) {
@@ -826,7 +827,7 @@ void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress)
         u64 dsa;
         int retry = 0;
         u64 rc;
-        struct iSeries_Device_Node *DevNode =
+        struct device_node *DevNode =
                 xlate_iomm_address(IoAddress, &dsa, &BarOffset);
 
         if (DevNode == NULL) {
@@ -854,7 +855,7 @@ void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress)
         u64 dsa;
         int retry = 0;
         u64 rc;
-        struct iSeries_Device_Node *DevNode =
+        struct device_node *DevNode =
                 xlate_iomm_address(IoAddress, &dsa, &BarOffset);
 
         if (DevNode == NULL) {
@@ -882,7 +883,7 @@ void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress)
         u64 dsa;
         int retry = 0;
         u64 rc;
-        struct iSeries_Device_Node *DevNode =
+        struct device_node *DevNode =
                 xlate_iomm_address(IoAddress, &dsa, &BarOffset);
 
         if (DevNode == NULL) {
diff --git a/include/asm-ppc64/iSeries/iSeries_pci.h b/arch/powerpc/platforms/iseries/pci.h
index 575f611f8b33..33a8489fde54 100644
--- a/include/asm-ppc64/iSeries/iSeries_pci.h
+++ b/arch/powerpc/platforms/iseries/pci.h
@@ -1,8 +1,8 @@
-#ifndef _ISERIES_64_PCI_H
-#define _ISERIES_64_PCI_H
+#ifndef _PLATFORMS_ISERIES_PCI_H
+#define _PLATFORMS_ISERIES_PCI_H
 
 /*
- * File iSeries_pci.h created by Allan Trautman on Tue Feb 20, 2001.
+ * Created by Allan Trautman on Tue Feb 20, 2001.
  *
  * Define some useful macros for the iSeries pci routines.
  * Copyright (C) 2001  Allan H Trautman, IBM Corporation
@@ -30,23 +30,9 @@
  * End Change Activity
  */
 
-#include <asm/iSeries/HvCallPci.h>
-#include <asm/abs_addr.h>
+#include <asm/pci-bridge.h>
 
 struct pci_dev;                         /* For Forward Reference */
-struct iSeries_Device_Node;
-
-/*
- * Gets iSeries Bus, SubBus, DevFn using iSeries_Device_Node structure
- */
-
-#define ISERIES_BUS(DevPtr)     DevPtr->DsaAddr.Dsa.busNumber
-#define ISERIES_SUBBUS(DevPtr)  DevPtr->DsaAddr.Dsa.subBusNumber
-#define ISERIES_DEVICE(DevPtr)  DevPtr->DsaAddr.Dsa.deviceId
-#define ISERIES_DSA(DevPtr)     DevPtr->DsaAddr.DsaAddr
-#define ISERIES_DEVNODE(PciDev) ((struct iSeries_Device_Node *)PciDev->sysdata)
-
-#define EADsMaxAgents 7
 
 /*
  * Decodes Linux DevFn to iSeries DevFn, bridge device, or function.
@@ -62,27 +48,16 @@ struct iSeries_Device_Node;
 #define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus)        ((subbus >> 2) & 0x7)
 
 /*
- * Converts Virtual Address to Real Address for Hypervisor calls
+ * Generate a Direct Select Address for the Hypervisor
  */
-#define ISERIES_HV_ADDR(virtaddr)       \
-        (0x8000000000000000 | virt_to_abs(virtaddr))
+static inline u64 iseries_ds_addr(struct device_node *node)
+{
+        struct pci_dn *pdn = PCI_DN(node);
 
-/*
- * iSeries Device Information
- */
-struct iSeries_Device_Node {
-        struct list_head Device_List;
-        struct pci_dev  *PciDev;
-        union HvDsaMap  DsaAddr;        /* Direct Select Address */
-                                        /* busNumber, subBusNumber, */
-                                        /* deviceId, barNumber */
-        int             DevFn;          /* Linux devfn */
-        int             Irq;            /* Assigned IRQ */
-        int             Flags;          /* Possible flags(disable/bist)*/
-        u8              LogicalSlot;    /* Hv Slot Index for Tces */
-        struct iommu_table *iommu_table;/* Device TCE Table */
-};
+        return ((u64)pdn->busno << 48) + ((u64)pdn->bussubno << 40)
+                        + ((u64)0x10 << 32);
+}
 
 extern void     iSeries_Device_Information(struct pci_dev*, int);
 
-#endif /* _ISERIES_64_PCI_H */
+#endif /* _PLATFORMS_ISERIES_PCI_H */
diff --git a/arch/ppc64/kernel/iSeries_proc.c b/arch/powerpc/platforms/iseries/proc.c
index 0fe3116eba29..6f1929cac66b 100644
--- a/arch/ppc64/kernel/iSeries_proc.c
+++ b/arch/powerpc/platforms/iseries/proc.c
@@ -1,5 +1,4 @@
 /*
- * iSeries_proc.c
  * Copyright (C) 2001  Kyle A. Lucke IBM Corporation
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation
  *
@@ -27,8 +26,9 @@
 #include <asm/lppaca.h>
 #include <asm/iSeries/ItLpQueue.h>
 #include <asm/iSeries/HvCallXm.h>
-#include <asm/iSeries/IoHriMainStore.h>
-#include <asm/iSeries/IoHriProcessorVpd.h>
+
+#include "processor_vpd.h"
+#include "main_store.h"
 
 static int __init iseries_proc_create(void)
 {
@@ -68,12 +68,15 @@ static int proc_titantod_show(struct seq_file *m, void *v)
                 unsigned long tb_ticks = (tb0 - startTb);
                 unsigned long titan_jiffies = titan_usec / (1000000/HZ);
                 unsigned long titan_jiff_usec = titan_jiffies * (1000000/HZ);
-                unsigned long titan_jiff_rem_usec = titan_usec - titan_jiff_usec;
+                unsigned long titan_jiff_rem_usec =
+                        titan_usec - titan_jiff_usec;
                 unsigned long tb_jiffies = tb_ticks / tb_ticks_per_jiffy;
                 unsigned long tb_jiff_ticks = tb_jiffies * tb_ticks_per_jiffy;
                 unsigned long tb_jiff_rem_ticks = tb_ticks - tb_jiff_ticks;
-                unsigned long tb_jiff_rem_usec = tb_jiff_rem_ticks / tb_ticks_per_usec;
-                unsigned long new_tb_ticks_per_jiffy = (tb_ticks * (1000000/HZ))/titan_usec;
+                unsigned long tb_jiff_rem_usec =
+                        tb_jiff_rem_ticks / tb_ticks_per_usec;
+                unsigned long new_tb_ticks_per_jiffy =
+                        (tb_ticks * (1000000/HZ))/titan_usec;
 
                 seq_printf(m, "  titan elapsed = %lu uSec\n", titan_usec);
                 seq_printf(m, "  tb elapsed    = %lu ticks\n", tb_ticks);
diff --git a/include/asm-ppc64/iSeries/IoHriProcessorVpd.h b/arch/powerpc/platforms/iseries/processor_vpd.h
index 73b73d80b8b1..7ac5d0d0dbfa 100644
--- a/include/asm-ppc64/iSeries/IoHriProcessorVpd.h
+++ b/arch/powerpc/platforms/iseries/processor_vpd.h
@@ -1,5 +1,4 @@
 /*
- * IoHriProcessorVpd.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _IOHRIPROCESSORVPD_H
-#define _IOHRIPROCESSORVPD_H
+#ifndef _ISERIES_PROCESSOR_VPD_H
+#define _ISERIES_PROCESSOR_VPD_H
 
 #include <asm/types.h>
 
@@ -83,4 +82,4 @@ struct IoHriProcessorVpd {
 
 extern struct IoHriProcessorVpd xIoHriProcessorVpd[];
 
-#endif /* _IOHRIPROCESSORVPD_H */
+#endif /* _ISERIES_PROCESSOR_VPD_H */
diff --git a/include/asm-ppc64/iSeries/HvReleaseData.h b/arch/powerpc/platforms/iseries/release_data.h
index c8162e5ccb21..c68b9c3e5caf 100644
--- a/include/asm-ppc64/iSeries/HvReleaseData.h
+++ b/arch/powerpc/platforms/iseries/release_data.h
@@ -1,5 +1,4 @@
 /*
- * HvReleaseData.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _HVRELEASEDATA_H
-#define _HVRELEASEDATA_H
+#ifndef _ISERIES_RELEASE_DATA_H
+#define _ISERIES_RELEASE_DATA_H
 
 /*
  * This control block contains the critical information about the
@@ -61,4 +60,4 @@ struct HvReleaseData {
 
 extern struct HvReleaseData     hvReleaseData;
 
-#endif /* _HVRELEASEDATA_H */
+#endif /* _ISERIES_RELEASE_DATA_H */
diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/powerpc/platforms/iseries/setup.c
index 3ffefbbc6623..1544c6f10a38 100644
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -2,8 +2,6 @@
  *    Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com>
  *    Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
  *
- *    Module name: iSeries_setup.c
- *
  *    Description:
  *      Architecture- / platform-specific boot-time initialization code for
  *      the IBM iSeries LPAR.  Adapted from original code by Grant Erickson and
@@ -42,26 +40,27 @@
 #include <asm/firmware.h>
 
 #include <asm/time.h>
-#include "iSeries_setup.h"
 #include <asm/naca.h>
 #include <asm/paca.h>
 #include <asm/cache.h>
 #include <asm/sections.h>
 #include <asm/abs_addr.h>
-#include <asm/iSeries/HvCallHpt.h>
 #include <asm/iSeries/HvLpConfig.h>
 #include <asm/iSeries/HvCallEvent.h>
-#include <asm/iSeries/HvCallSm.h>
 #include <asm/iSeries/HvCallXm.h>
 #include <asm/iSeries/ItLpQueue.h>
-#include <asm/iSeries/IoHriMainStore.h>
 #include <asm/iSeries/mf.h>
 #include <asm/iSeries/HvLpEvent.h>
-#include <asm/iSeries/iSeries_irq.h>
-#include <asm/iSeries/IoHriProcessorVpd.h>
-#include <asm/iSeries/ItVpdAreas.h>
 #include <asm/iSeries/LparMap.h>
 
+#include "setup.h"
+#include "irq.h"
+#include "vpd_areas.h"
+#include "processor_vpd.h"
+#include "main_store.h"
+#include "call_sm.h"
+#include "call_hpt.h"
+
 extern void hvlog(char *fmt, ...);
 
 #ifdef DEBUG
@@ -74,8 +73,8 @@ extern void hvlog(char *fmt, ...);
 extern void ppcdbg_initialize(void);
 
 static void build_iSeries_Memory_Map(void);
-static void setup_iSeries_cache_sizes(void);
-static void iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr);
+static void iseries_shared_idle(void);
+static void iseries_dedicated_idle(void);
 #ifdef CONFIG_PCI
 extern void iSeries_pci_final_fixup(void);
 #else
@@ -83,14 +82,6 @@ static void iSeries_pci_final_fixup(void) { }
 #endif
 
 /* Global Variables */
-static unsigned long procFreqHz;
-static unsigned long procFreqMhz;
-static unsigned long procFreqMhzHundreths;
-
-static unsigned long tbFreqHz;
-static unsigned long tbFreqMhz;
-static unsigned long tbFreqMhzHundreths;
-
 int piranha_simulator;
 
 extern int rd_size;             /* Defined in drivers/block/rd.c */
@@ -311,14 +302,14 @@ static void __init iSeries_get_cmdline(void)
 
 static void __init iSeries_init_early(void)
 {
-        extern unsigned long memory_limit;
-
         DBG(" -> iSeries_init_early()\n");
 
         ppc64_firmware_features = FW_FEATURE_ISERIES;
 
         ppcdbg_initialize();
 
+        ppc64_interrupt_controller = IC_ISERIES;
+
 #if defined(CONFIG_BLK_DEV_INITRD)
         /*
          * If the init RAM disk has been configured and there is
@@ -341,12 +332,6 @@ static void __init iSeries_init_early(void)
         iSeries_recal_titan = HvCallXm_loadTod();
 
         /*
-         * Cache sizes must be initialized before hpte_init_iSeries is called
-         * as the later need them for flush_icache_range()
-         */
-        setup_iSeries_cache_sizes();
-
-        /*
          * Initialize the hash table management pointers
          */
         hpte_init_iSeries();
@@ -356,12 +341,6 @@ static void __init iSeries_init_early(void)
          */
         iommu_init_early_iSeries();
 
-        /*
-         * Initialize the table which translate Linux physical addresses to
-         * AS/400 absolute addresses
-         */
-        build_iSeries_Memory_Map();
-
         iSeries_get_cmdline();
 
         /* Save unparsed command line copy for /proc/cmdline */
@@ -379,14 +358,6 @@ static void __init iSeries_init_early(void)
                 }
         }
 
-        /* Bolt kernel mappings for all of memory (or just a bit if we've got a limit) */
-        iSeries_bolt_kernel(0, systemcfg->physicalMemorySize);
-
-        lmb_init();
-        lmb_add(0, systemcfg->physicalMemorySize);
-        lmb_analyze();
-        lmb_reserve(0, __pa(klimit));
-
         /* Initialize machine-dependency vectors */
 #ifdef CONFIG_SMP
         smp_init_iSeries();
@@ -457,7 +428,6 @@ static void __init build_iSeries_Memory_Map(void)
         u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize;
         u32 nextPhysChunk;
         u32 hptFirstChunk, hptLastChunk, hptSizeChunks, hptSizePages;
-        u32 num_ptegs;
         u32 totalChunks,moreChunks;
         u32 currChunk, thisChunk, absChunk;
         u32 currDword;
@@ -520,10 +490,7 @@ static void __init build_iSeries_Memory_Map(void)
         printk("HPT absolute addr = %016lx, size = %dK\n",
                         chunk_to_addr(hptFirstChunk), hptSizeChunks * 256);
 
-        /* Fill in the hashed page table hash mask */
-        num_ptegs = hptSizePages *
-                (PAGE_SIZE / (sizeof(hpte_t) * HPTES_PER_GROUP));
-        htab_hash_mask = num_ptegs - 1;
+        ppc64_pft_size = __ilog2(hptSizePages * PAGE_SIZE);
 
         /*
          * The actual hashed page table is in the hypervisor,
@@ -592,144 +559,33 @@ static void __init build_iSeries_Memory_Map(void)
 }
 
 /*
- * Set up the variables that describe the cache line sizes
- * for this machine.
- */
-static void __init setup_iSeries_cache_sizes(void)
-{
-        unsigned int i, n;
-        unsigned int procIx = get_paca()->lppaca.dyn_hv_phys_proc_index;
-
-        systemcfg->icache_size =
-        ppc64_caches.isize = xIoHriProcessorVpd[procIx].xInstCacheSize * 1024;
-        systemcfg->icache_line_size =
-        ppc64_caches.iline_size =
-                xIoHriProcessorVpd[procIx].xInstCacheOperandSize;
-        systemcfg->dcache_size =
-        ppc64_caches.dsize =
-                xIoHriProcessorVpd[procIx].xDataL1CacheSizeKB * 1024;
-        systemcfg->dcache_line_size =
-        ppc64_caches.dline_size =
-                xIoHriProcessorVpd[procIx].xDataCacheOperandSize;
-        ppc64_caches.ilines_per_page = PAGE_SIZE / ppc64_caches.iline_size;
-        ppc64_caches.dlines_per_page = PAGE_SIZE / ppc64_caches.dline_size;
-
-        i = ppc64_caches.iline_size;
-        n = 0;
-        while ((i = (i / 2)))
-                ++n;
-        ppc64_caches.log_iline_size = n;
-
-        i = ppc64_caches.dline_size;
-        n = 0;
-        while ((i = (i / 2)))
-                ++n;
-        ppc64_caches.log_dline_size = n;
-
-        printk("D-cache line size = %d\n",
-                        (unsigned int)ppc64_caches.dline_size);
-        printk("I-cache line size = %d\n",
-                        (unsigned int)ppc64_caches.iline_size);
-}
-
-/*
- * Create a pte. Used during initialization only.
- */
-static void iSeries_make_pte(unsigned long va, unsigned long pa,
-                             int mode)
-{
-        hpte_t local_hpte, rhpte;
-        unsigned long hash, vpn;
-        long slot;
-
-        vpn = va >> PAGE_SHIFT;
-        hash = hpt_hash(vpn, 0);
-
-        local_hpte.r = pa | mode;
-        local_hpte.v = ((va >> 23) << HPTE_V_AVPN_SHIFT)
-                | HPTE_V_BOLTED | HPTE_V_VALID;
-
-        slot = HvCallHpt_findValid(&rhpte, vpn);
-        if (slot < 0) {
-                /* Must find space in primary group */
-                panic("hash_page: hpte already exists\n");
-        }
-        HvCallHpt_addValidate(slot, 0, &local_hpte);
-}
-
-/*
- * Bolt the kernel addr space into the HPT
- */
-static void __init iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr)
-{
-        unsigned long pa;
-        unsigned long mode_rw = _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX;
-        hpte_t hpte;
-
-        for (pa = saddr; pa < eaddr ;pa += PAGE_SIZE) {
-                unsigned long ea = (unsigned long)__va(pa);
-                unsigned long vsid = get_kernel_vsid(ea);
-                unsigned long va = (vsid << 28) | (pa & 0xfffffff);
-                unsigned long vpn = va >> PAGE_SHIFT;
-                unsigned long slot = HvCallHpt_findValid(&hpte, vpn);
-
-                /* Make non-kernel text non-executable */
-                if (!in_kernel_text(ea))
-                        mode_rw |= HW_NO_EXEC;
-
-                if (hpte.v & HPTE_V_VALID) {
-                        /* HPTE exists, so just bolt it */
-                        HvCallHpt_setSwBits(slot, 0x10, 0);
-                        /* And make sure the pp bits are correct */
-                        HvCallHpt_setPp(slot, PP_RWXX);
-                } else
-                        /* No HPTE exists, so create a new bolted one */
-                        iSeries_make_pte(va, phys_to_abs(pa), mode_rw);
-        }
-}
-
-/*
  * Document me.
  */
 static void __init iSeries_setup_arch(void)
 {
         unsigned procIx = get_paca()->lppaca.dyn_hv_phys_proc_index;
 
-        /* Add an eye catcher and the systemcfg layout version number */
-        strcpy(systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
-        systemcfg->version.major = SYSTEMCFG_MAJOR;
-        systemcfg->version.minor = SYSTEMCFG_MINOR;
+        if (get_paca()->lppaca.shared_proc) {
+                ppc_md.idle_loop = iseries_shared_idle;
+                printk(KERN_INFO "Using shared processor idle loop\n");
+        } else {
+                ppc_md.idle_loop = iseries_dedicated_idle;
+                printk(KERN_INFO "Using dedicated idle loop\n");
+        }
 
         /* Setup the Lp Event Queue */
         setup_hvlpevent_queue();
 
-        /* Compute processor frequency */
-        procFreqHz = ((1UL << 34) * 1000000) /
-                        xIoHriProcessorVpd[procIx].xProcFreq;
-        procFreqMhz = procFreqHz / 1000000;
-        procFreqMhzHundreths = (procFreqHz / 10000) - (procFreqMhz * 100);
-        ppc_proc_freq = procFreqHz;
-
-        /* Compute time base frequency */
-        tbFreqHz = ((1UL << 32) * 1000000) /
-                xIoHriProcessorVpd[procIx].xTimeBaseFreq;
-        tbFreqMhz = tbFreqHz / 1000000;
-        tbFreqMhzHundreths = (tbFreqHz / 10000) - (tbFreqMhz * 100);
-        ppc_tb_freq = tbFreqHz;
-
         printk("Max  logical processors = %d\n",
                         itVpdAreas.xSlicMaxLogicalProcs);
         printk("Max physical processors = %d\n",
                         itVpdAreas.xSlicMaxPhysicalProcs);
-        printk("Processor frequency = %lu.%02lu\n", procFreqMhz,
-                        procFreqMhzHundreths);
-        printk("Time base frequency = %lu.%02lu\n", tbFreqMhz,
-                        tbFreqMhzHundreths);
+
         systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR;
         printk("Processor version = %x\n", systemcfg->processor);
 }
 
-static void iSeries_get_cpuinfo(struct seq_file *m)
+static void iSeries_show_cpuinfo(struct seq_file *m)
 {
         seq_printf(m, "machine\t\t: 64-bit iSeries Logical Partition\n");
 }
@@ -768,49 +624,6 @@ static void iSeries_halt(void)
         mf_power_off();
 }
 
-/*
- * void __init iSeries_calibrate_decr()
- *
- * Description:
- *   This routine retrieves the internal processor frequency from the VPD,
- *   and sets up the kernel timer decrementer based on that value.
- *
- */
-static void __init iSeries_calibrate_decr(void)
-{
-        unsigned long   cyclesPerUsec;
-        struct div_result divres;
-
-        /* Compute decrementer (and TB) frequency in cycles/sec */
-        cyclesPerUsec = ppc_tb_freq / 1000000;
-
-        /*
-         * Set the amount to refresh the decrementer by.  This
-         * is the number of decrementer ticks it takes for
-         * 1/HZ seconds.
-         */
-        tb_ticks_per_jiffy = ppc_tb_freq / HZ;
-
-#if 0
-        /* TEST CODE FOR ADJTIME */
-        tb_ticks_per_jiffy += tb_ticks_per_jiffy / 5000;
-        /* END OF TEST CODE */
-#endif
-
-        /*
-         * tb_ticks_per_sec = freq; would give better accuracy
-         * but tb_ticks_per_sec = tb_ticks_per_jiffy*HZ; assures
-         * that jiffies (and xtime) will match the time returned
-         * by do_gettimeofday.
-         */
-        tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
-        tb_ticks_per_usec = cyclesPerUsec;
-        tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
-        div128_by_32(1024 * 1024, 0, tb_ticks_per_sec, &divres);
-        tb_to_xs = divres.result_low;
-        setup_default_decr();
-}
-
 static void __init iSeries_progress(char * st, unsigned short code)
 {
         printk("Progress: [%04x] - %s\n", (unsigned)code, st);
@@ -878,7 +691,7 @@ static void yield_shared_processor(void)
         process_iSeries_events();
 }
 
-static int iseries_shared_idle(void)
+static void iseries_shared_idle(void)
 {
         while (1) {
                 while (!need_resched() && !hvlpevent_is_pending()) {
@@ -900,11 +713,9 @@ static int iseries_shared_idle(void)
 
                 schedule();
         }
-
-        return 0;
 }
 
-static int iseries_dedicated_idle(void)
+static void iseries_dedicated_idle(void)
 {
         long oldval;
 
@@ -934,44 +745,252 @@ static int iseries_dedicated_idle(void)
                 ppc64_runlatch_on();
                 schedule();
         }
-
-        return 0;
 }
 
 #ifndef CONFIG_PCI
 void __init iSeries_init_IRQ(void) { }
 #endif
 
-void __init iSeries_early_setup(void)
+static int __init iseries_probe(int platform)
 {
-        iSeries_fixup_klimit();
+        return PLATFORM_ISERIES_LPAR == platform;
+}
 
-        ppc_md.setup_arch = iSeries_setup_arch;
-        ppc_md.get_cpuinfo = iSeries_get_cpuinfo;
-        ppc_md.init_IRQ = iSeries_init_IRQ;
-        ppc_md.get_irq = iSeries_get_irq;
-        ppc_md.init_early = iSeries_init_early,
+struct machdep_calls __initdata iseries_md = {
+        .setup_arch     = iSeries_setup_arch,
+        .show_cpuinfo   = iSeries_show_cpuinfo,
+        .init_IRQ       = iSeries_init_IRQ,
+        .get_irq        = iSeries_get_irq,
+        .init_early     = iSeries_init_early,
+        .pcibios_fixup  = iSeries_pci_final_fixup,
+        .restart        = iSeries_restart,
+        .power_off      = iSeries_power_off,
+        .halt           = iSeries_halt,
+        .get_boot_time  = iSeries_get_boot_time,
+        .set_rtc_time   = iSeries_set_rtc_time,
+        .get_rtc_time   = iSeries_get_rtc_time,
+        .calibrate_decr = generic_calibrate_decr,
+        .progress       = iSeries_progress,
+        .probe          = iseries_probe,
+        /* XXX Implement enable_pmcs for iSeries */
+};
 
-        ppc_md.pcibios_fixup  = iSeries_pci_final_fixup;
+struct blob {
+        unsigned char data[PAGE_SIZE];
+        unsigned long next;
+};
 
-        ppc_md.restart = iSeries_restart;
-        ppc_md.power_off = iSeries_power_off;
-        ppc_md.halt = iSeries_halt;
+struct iseries_flat_dt {
+        struct boot_param_header header;
+        u64 reserve_map[2];
+        struct blob dt;
+        struct blob strings;
+};
 
-        ppc_md.get_boot_time = iSeries_get_boot_time;
-        ppc_md.set_rtc_time = iSeries_set_rtc_time;
-        ppc_md.get_rtc_time = iSeries_get_rtc_time;
-        ppc_md.calibrate_decr = iSeries_calibrate_decr;
-        ppc_md.progress = iSeries_progress;
+struct iseries_flat_dt iseries_dt;
 
-        /* XXX Implement enable_pmcs for iSeries */
+void dt_init(struct iseries_flat_dt *dt)
+{
+        dt->header.off_mem_rsvmap =
+                offsetof(struct iseries_flat_dt, reserve_map);
+        dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt);
+        dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings);
+        dt->header.totalsize = sizeof(struct iseries_flat_dt);
+        dt->header.dt_strings_size = sizeof(struct blob);
 
-        if (get_paca()->lppaca.shared_proc) {
-                ppc_md.idle_loop = iseries_shared_idle;
-                printk(KERN_INFO "Using shared processor idle loop\n");
-        } else {
-                ppc_md.idle_loop = iseries_dedicated_idle;
-                printk(KERN_INFO "Using dedicated idle loop\n");
+        /* There is no notion of hardware cpu id on iSeries */
+        dt->header.boot_cpuid_phys = smp_processor_id();
+
+        dt->dt.next = (unsigned long)&dt->dt.data;
+        dt->strings.next = (unsigned long)&dt->strings.data;
+
+        dt->header.magic = OF_DT_HEADER;
+        dt->header.version = 0x10;
+        dt->header.last_comp_version = 0x10;
+
+        dt->reserve_map[0] = 0;
+        dt->reserve_map[1] = 0;
+}
+
+void dt_check_blob(struct blob *b)
+{
+        if (b->next >= (unsigned long)&b->next) {
+                DBG("Ran out of space in flat device tree blob!\n");
+                BUG();
         }
 }
 
+void dt_push_u32(struct iseries_flat_dt *dt, u32 value)
+{
+        *((u32*)dt->dt.next) = value;
+        dt->dt.next += sizeof(u32);
+
+        dt_check_blob(&dt->dt);
+}
+
+void dt_push_u64(struct iseries_flat_dt *dt, u64 value)
+{
+        *((u64*)dt->dt.next) = value;
+        dt->dt.next += sizeof(u64);
+
+        dt_check_blob(&dt->dt);
+}
+
+unsigned long dt_push_bytes(struct blob *blob, char *data, int len)
+{
+        unsigned long start = blob->next - (unsigned long)blob->data;
+
+        memcpy((char *)blob->next, data, len);
+        blob->next = _ALIGN(blob->next + len, 4);
+
+        dt_check_blob(blob);
+
+        return start;
+}
+
+void dt_start_node(struct iseries_flat_dt *dt, char *name)
+{
+        dt_push_u32(dt, OF_DT_BEGIN_NODE);
+        dt_push_bytes(&dt->dt, name, strlen(name) + 1);
+}
+
+#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
+
+void dt_prop(struct iseries_flat_dt *dt, char *name, char *data, int len)
+{
+        unsigned long offset;
+
+        dt_push_u32(dt, OF_DT_PROP);
+
+        /* Length of the data */
+        dt_push_u32(dt, len);
+
+        /* Put the property name in the string blob. */
+        offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1);
+
+        /* The offset of the properties name in the string blob. */
+        dt_push_u32(dt, (u32)offset);
+
+        /* The actual data. */
+        dt_push_bytes(&dt->dt, data, len);
+}
+
+void dt_prop_str(struct iseries_flat_dt *dt, char *name, char *data)
+{
+        dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
+}
+
+void dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data)
+{
+        dt_prop(dt, name, (char *)&data, sizeof(u32));
+}
+
+void dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data)
+{
+        dt_prop(dt, name, (char *)&data, sizeof(u64));
+}
+
+void dt_prop_u64_list(struct iseries_flat_dt *dt, char *name, u64 *data, int n)
+{
+        dt_prop(dt, name, (char *)data, sizeof(u64) * n);
+}
+
+void dt_prop_empty(struct iseries_flat_dt *dt, char *name)
+{
+        dt_prop(dt, name, NULL, 0);
+}
+
+void dt_cpus(struct iseries_flat_dt *dt)
+{
+        unsigned char buf[32];
+        unsigned char *p;
+        unsigned int i, index;
+        struct IoHriProcessorVpd *d;
+
+        /* yuck */
+        snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
+        p = strchr(buf, ' ');
+        if (!p) p = buf + strlen(buf);
+
+        dt_start_node(dt, "cpus");
+        dt_prop_u32(dt, "#address-cells", 1);
+        dt_prop_u32(dt, "#size-cells", 0);
+
+        for (i = 0; i < NR_CPUS; i++) {
+                if (paca[i].lppaca.dyn_proc_status >= 2)
+                        continue;
+
+                snprintf(p, 32 - (p - buf), "@%d", i);
+                dt_start_node(dt, buf);
+
+                dt_prop_str(dt, "device_type", "cpu");
+
+                index = paca[i].lppaca.dyn_hv_phys_proc_index;
+                d = &xIoHriProcessorVpd[index];
+
+                dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
+                dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize);
+
+                dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024);
+                dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize);
+
+                /* magic conversions to Hz copied from old code */
+                dt_prop_u32(dt, "clock-frequency",
+                        ((1UL << 34) * 1000000) / d->xProcFreq);
+                dt_prop_u32(dt, "timebase-frequency",
+                        ((1UL << 32) * 1000000) / d->xTimeBaseFreq);
+
+                dt_prop_u32(dt, "reg", i);
+
+                dt_end_node(dt);
+        }
+
+        dt_end_node(dt);
+}
+
+void build_flat_dt(struct iseries_flat_dt *dt)
+{
+        u64 tmp[2];
+
+        dt_init(dt);
+
+        dt_start_node(dt, "");
+
+        dt_prop_u32(dt, "#address-cells", 2);
+        dt_prop_u32(dt, "#size-cells", 2);
+
+        /* /memory */
+        dt_start_node(dt, "memory@0");
+        dt_prop_str(dt, "name", "memory");
+        dt_prop_str(dt, "device_type", "memory");
+        tmp[0] = 0;
+        tmp[1] = systemcfg->physicalMemorySize;
+        dt_prop_u64_list(dt, "reg", tmp, 2);
+        dt_end_node(dt);
+
+        /* /chosen */
+        dt_start_node(dt, "chosen");
+        dt_prop_u32(dt, "linux,platform", PLATFORM_ISERIES_LPAR);
+        dt_end_node(dt);
+
+        dt_cpus(dt);
+
+        dt_end_node(dt);
+
+        dt_push_u32(dt, OF_DT_END);
+}
+
+void * __init iSeries_early_setup(void)
+{
+        iSeries_fixup_klimit();
+
+        /*
+         * Initialize the table which translate Linux physical addresses to
+         * AS/400 absolute addresses
+         */
+        build_iSeries_Memory_Map();
+
+        build_flat_dt(&iseries_dt);
+
+        return (void *) __pa(&iseries_dt);
+}
diff --git a/arch/ppc64/kernel/iSeries_setup.h b/arch/powerpc/platforms/iseries/setup.h
index c6eb29a245ac..5213044ec411 100644
--- a/arch/ppc64/kernel/iSeries_setup.h
+++ b/arch/powerpc/platforms/iseries/setup.h
@@ -2,8 +2,6 @@
  *    Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com>
  *    Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
  *
- *    Module name: as400_setup.h
- *
  *    Description:
  *      Architecture- / platform-specific boot-time initialization code for
  *      the IBM AS/400 LPAR. Adapted from original code by Grant Erickson and
@@ -19,7 +17,7 @@
 #ifndef __ISERIES_SETUP_H__
 #define __ISERIES_SETUP_H__
 
-extern void iSeries_get_boot_time(struct rtc_time *tm);
+extern unsigned long iSeries_get_boot_time(void);
 extern int iSeries_set_rtc_time(struct rtc_time *tm);
 extern void iSeries_get_rtc_time(struct rtc_time *tm);
 
diff --git a/arch/ppc64/kernel/iSeries_smp.c b/arch/powerpc/platforms/iseries/smp.c
index f74386e31638..f720916682f6 100644
--- a/arch/ppc64/kernel/iSeries_smp.c
+++ b/arch/powerpc/platforms/iseries/smp.c
@@ -47,17 +47,17 @@
 
 static unsigned long iSeries_smp_message[NR_CPUS];
 
-void iSeries_smp_message_recv( struct pt_regs * regs )
+void iSeries_smp_message_recv(struct pt_regs *regs)
 {
         int cpu = smp_processor_id();
         int msg;
 
-        if ( num_online_cpus() < 2 )
+        if (num_online_cpus() < 2)
                 return;
 
-        for ( msg = 0; msg < 4; ++msg )
-                if ( test_and_clear_bit( msg, &iSeries_smp_message[cpu] ) )
-                        smp_message_recv( msg, regs );
+        for (msg = 0; msg < 4; msg++)
+                if (test_and_clear_bit(msg, &iSeries_smp_message[cpu]))
+                        smp_message_recv(msg, regs);
 }
 
 static inline void smp_iSeries_do_message(int cpu, int msg)
@@ -74,48 +74,22 @@ static void smp_iSeries_message_pass(int target, int msg)
                 smp_iSeries_do_message(target, msg);
         else {
                 for_each_online_cpu(i) {
-                        if (target == MSG_ALL_BUT_SELF
-                            && i == smp_processor_id())
+                        if ((target == MSG_ALL_BUT_SELF) &&
+                                        (i == smp_processor_id()))
                                 continue;
                         smp_iSeries_do_message(i, msg);
                 }
         }
 }
 
-static int smp_iSeries_numProcs(void)
-{
-        unsigned np, i;
-
-        np = 0;
-        for (i=0; i < NR_CPUS; ++i) {
-                if (paca[i].lppaca.dyn_proc_status < 2) {
-                        cpu_set(i, cpu_possible_map);
-                        cpu_set(i, cpu_present_map);
-                        cpu_set(i, cpu_sibling_map[i]);
-                        ++np;
-                }
-        }
-        return np;
-}
-
 static int smp_iSeries_probe(void)
 {
-        unsigned i;
-        unsigned np = 0;
-
-        for (i=0; i < NR_CPUS; ++i) {
-                if (paca[i].lppaca.dyn_proc_status < 2) {
-                        /*paca[i].active = 1;*/
-                        ++np;
-                }
-        }
-
-        return np;
+        return cpus_weight(cpu_possible_map);
 }
 
 static void smp_iSeries_kick_cpu(int nr)
 {
-        BUG_ON(nr < 0 || nr >= NR_CPUS);
+        BUG_ON((nr < 0) || (nr >= NR_CPUS));
 
         /* Verify that our partition has a processor nr */
         if (paca[nr].lppaca.dyn_proc_status >= 2)
@@ -144,6 +118,4 @@ static struct smp_ops_t iSeries_smp_ops = {
 void __init smp_init_iSeries(void)
 {
         smp_ops = &iSeries_smp_ops;
-        systemcfg->processorCount       = smp_iSeries_numProcs();
 }
-
diff --git a/include/asm-ppc64/iSeries/ItSpCommArea.h b/arch/powerpc/platforms/iseries/spcomm_area.h
index 5535f8271c9f..6e3b685115c9 100644
--- a/include/asm-ppc64/iSeries/ItSpCommArea.h
+++ b/arch/powerpc/platforms/iseries/spcomm_area.h
@@ -1,5 +1,4 @@
 /*
- * ItSpCommArea.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,8 +16,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
-#ifndef _ITSPCOMMAREA_H
-#define _ITSPCOMMAREA_H
+#ifndef _ISERIES_SPCOMM_AREA_H
+#define _ISERIES_SPCOMM_AREA_H
 
 
 struct SpCommArea {
@@ -34,4 +33,4 @@ struct SpCommArea {
 
 extern struct SpCommArea xSpCommArea;
 
-#endif /* _ITSPCOMMAREA_H */
+#endif /* _ISERIES_SPCOMM_AREA_H */
diff --git a/arch/ppc64/kernel/iSeries_vio.c b/arch/powerpc/platforms/iseries/vio.c
index 6b754b0c8344..c0f7d2e9153f 100644
--- a/arch/ppc64/kernel/iSeries_vio.c
+++ b/arch/powerpc/platforms/iseries/vio.c
@@ -14,6 +14,7 @@
 
 #include <asm/vio.h>
 #include <asm/iommu.h>
+#include <asm/tce.h>
 #include <asm/abs_addr.h>
 #include <asm/page.h>
 #include <asm/iSeries/vio.h>
diff --git a/arch/ppc64/kernel/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 2a6c4f01c45e..c0c767bd37f1 100644
--- a/arch/ppc64/kernel/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -1,5 +1,4 @@
 /* -*- linux-c -*-
- *  arch/ppc64/kernel/viopath.c
  *
  *  iSeries Virtual I/O Message Path code
  *
@@ -7,7 +6,7 @@
  *           Ryan Arnold <ryanarn@us.ibm.com>
  *           Colin Devilbiss <devilbis@us.ibm.com>
  *
- * (C) Copyright 2000-2003 IBM Corporation
+ * (C) Copyright 2000-2005 IBM Corporation
  *
  * This code is used by the iSeries virtual disk, cd,
  * tape, and console to communicate with OS/400 in another
diff --git a/include/asm-ppc64/iSeries/ItVpdAreas.h b/arch/powerpc/platforms/iseries/vpd_areas.h
index 71b3ad24f95a..601e6dd860ed 100644
--- a/include/asm-ppc64/iSeries/ItVpdAreas.h
+++ b/arch/powerpc/platforms/iseries/vpd_areas.h
@@ -1,5 +1,4 @@
 /*
- * ItVpdAreas.h
  * Copyright (C) 2001  Mike Corrigan IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -16,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _ITVPDAREAS_H
-#define _ITVPDAREAS_H
+#ifndef _ISERIES_VPD_AREAS_H
+#define _ISERIES_VPD_AREAS_H
 
 /*
  * This file defines the address and length of all of the VPD area passed to
@@ -86,4 +85,4 @@ struct ItVpdAreas {
 
 extern struct ItVpdAreas        itVpdAreas;
 
-#endif /* _ITVPDAREAS_H */
+#endif /* _ISERIES_VPD_AREAS_H */
diff --git a/arch/ppc64/kernel/iSeries_VpdInfo.c b/arch/powerpc/platforms/iseries/vpdinfo.c
index 5d921792571f..9c318849dee7 100644
--- a/arch/ppc64/kernel/iSeries_VpdInfo.c
+++ b/arch/powerpc/platforms/iseries/vpdinfo.c
@@ -1,6 +1,4 @@
 /*
- * File iSeries_vpdInfo.c created by Allan Trautman on Fri Feb  2 2001.
- *
  * This code gets the card location of the hardware
  * Copyright (C) 2001  <Allan H Trautman> <IBM Corp>
  * Copyright (C) 2005  Stephen Rothwel, IBM Corp
@@ -29,12 +27,15 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+
 #include <asm/types.h>
 #include <asm/resource.h>
-
-#include <asm/iSeries/HvCallPci.h>
+#include <asm/abs_addr.h>
+#include <asm/pci-bridge.h>
 #include <asm/iSeries/HvTypes.h>
-#include <asm/iSeries/iSeries_pci.h>
+
+#include "pci.h"
+#include "call_pci.h"
 
 /*
  * Size of Bus VPD data
@@ -214,7 +215,7 @@ static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent,
                 printk("PCI: Bus VPD Buffer allocation failure.\n");
                 return;
         }
-        BusVpdLen = HvCallPci_getBusVpd(bus, ISERIES_HV_ADDR(BusVpdPtr),
+        BusVpdLen = HvCallPci_getBusVpd(bus, iseries_hv_addr(BusVpdPtr),
                                         BUS_VPDSIZE);
         if (BusVpdLen == 0) {
                 printk("PCI: Bus VPD Buffer zero length.\n");
@@ -242,7 +243,8 @@ out_free:
  */
 void __init iSeries_Device_Information(struct pci_dev *PciDev, int count)
 {
-        struct iSeries_Device_Node *DevNode = PciDev->sysdata;
+        struct device_node *DevNode = PciDev->sysdata;
+        struct pci_dn *pdn;
         u16 bus;
         u8 frame;
         char card[4];
@@ -255,8 +257,9 @@ void __init iSeries_Device_Information(struct pci_dev *PciDev, int count)
                 return;
         }
 
-        bus = ISERIES_BUS(DevNode);
-        subbus = ISERIES_SUBBUS(DevNode);
+        pdn = PCI_DN(DevNode);
+        bus = pdn->busno;
+        subbus = pdn->bussubno;
         agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus),
                         ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus));
         iSeries_Get_Location_Code(bus, agent, &frame, card);
diff --git a/arch/powerpc/platforms/maple/Makefile b/arch/powerpc/platforms/maple/Makefile
new file mode 100644
index 000000000000..1be1a993c5f5
--- /dev/null
+++ b/arch/powerpc/platforms/maple/Makefile
@@ -0,0 +1 @@
+obj-y   += setup.o pci.o time.o
diff --git a/arch/powerpc/platforms/maple/maple.h b/arch/powerpc/platforms/maple/maple.h
new file mode 100644
index 000000000000..0657c579b840
--- /dev/null
+++ b/arch/powerpc/platforms/maple/maple.h
@@ -0,0 +1,12 @@
+/*
+ * Declarations for maple-specific code.
+ *
+ * Maple is the name of a PPC970 evaluation board.
+ */
+extern int maple_set_rtc_time(struct rtc_time *tm);
+extern void maple_get_rtc_time(struct rtc_time *tm);
+extern unsigned long maple_get_boot_time(void);
+extern void maple_calibrate_decr(void);
+extern void maple_pci_init(void);
+extern void maple_pcibios_fixup(void);
+extern int maple_pci_get_legacy_ide_irq(struct pci_dev *dev, int channel);
diff --git a/arch/ppc64/kernel/maple_pci.c b/arch/powerpc/platforms/maple/pci.c
index 1d297e0edfc0..340c21caeae2 100644
--- a/arch/ppc64/kernel/maple_pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -23,8 +23,9 @@
 #include <asm/pci-bridge.h>
 #include <asm/machdep.h>
 #include <asm/iommu.h>
+#include <asm/ppc-pci.h>
 
-#include "pci.h"
+#include "maple.h"
 
 #ifdef DEBUG
 #define DBG(x...) printk(x)
@@ -276,7 +277,7 @@ static void __init setup_u3_agp(struct pci_controller* hose)
 {
         /* On G5, we move AGP up to high bus number so we don't need
          * to reassign bus numbers for HT. If we ever have P2P bridges
-         * on AGP, we'll have to move pci_assign_all_busses to the
+         * on AGP, we'll have to move pci_assign_all_buses to the
          * pci_controller structure so we enable it for AGP and not for
          * HT childs.
          * We hard code the address because of the different size of
@@ -360,7 +361,7 @@ static int __init add_bridge(struct device_node *dev)
 
         /* Interpret the "ranges" property */
         /* This also maps the I/O region and sets isa_io/mem_base */
-        pci_process_bridge_OF_ranges(hose, dev);
+        pci_process_bridge_OF_ranges(hose, dev, primary);
         pci_setup_phb_io(hose, primary);
 
         /* Fixup "bus-range" OF property */
diff --git a/arch/ppc64/kernel/maple_setup.c b/arch/powerpc/platforms/maple/setup.c
index fc0567498a3a..7ece8983a105 100644
--- a/arch/ppc64/kernel/maple_setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -1,5 +1,5 @@
 /*
- *  arch/ppc64/kernel/maple_setup.c
+ *  Maple (970 eval board) setup code
  *
  *  (c) Copyright 2004 Benjamin Herrenschmidt (benh@kernel.crashing.org),
  *                     IBM Corp. 
@@ -59,8 +59,10 @@
 #include <asm/time.h>
 #include <asm/of_device.h>
 #include <asm/lmb.h>
+#include <asm/mpic.h>
+#include <asm/udbg.h>
 
-#include "mpic.h"
+#include "maple.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -68,13 +70,6 @@
 #define DBG(fmt...)
 #endif
 
-extern int maple_set_rtc_time(struct rtc_time *tm);
-extern void maple_get_rtc_time(struct rtc_time *tm);
-extern void maple_get_boot_time(struct rtc_time *tm);
-extern void maple_calibrate_decr(void);
-extern void maple_pci_init(void);
-extern void maple_pcibios_fixup(void);
-extern int maple_pci_get_legacy_ide_irq(struct pci_dev *dev, int channel);
 extern void generic_find_legacy_serial_ports(u64 *physport,
                 unsigned int *default_speed);
 
diff --git a/arch/ppc64/kernel/maple_time.c b/arch/powerpc/platforms/maple/time.c
index d65210abcd03..40fc07a8e606 100644
--- a/arch/ppc64/kernel/maple_time.c
+++ b/arch/powerpc/platforms/maple/time.c
@@ -36,6 +36,8 @@
 #include <asm/machdep.h>
 #include <asm/time.h>
 
+#include "maple.h"
+
 #ifdef DEBUG
 #define DBG(x...) printk(x)
 #else
@@ -156,8 +158,9 @@ int maple_set_rtc_time(struct rtc_time *tm)
         return 0;
 }
 
-void __init maple_get_boot_time(struct rtc_time *tm)
+unsigned long __init maple_get_boot_time(void)
 {
+        struct rtc_time tm;
         struct device_node *rtcs;
 
         rtcs = find_compatible_devices("rtc", "pnpPNP,b00");
@@ -170,6 +173,8 @@ void __init maple_get_boot_time(struct rtc_time *tm)
                        "legacy address (0x%x)\n", maple_rtc_addr);
         }
         
-        maple_get_rtc_time(tm);
+        maple_get_rtc_time(&tm);
+        return mktime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
+                      tm.tm_hour, tm.tm_min, tm.tm_sec);
 }
 
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
new file mode 100644
index 000000000000..4369676f1d54
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -0,0 +1,8 @@
+obj-y                           += pic.o setup.o time.o feature.o pci.o \
+                                   sleep.o low_i2c.o cache.o
+obj-$(CONFIG_PMAC_BACKLIGHT)    += backlight.o
+obj-$(CONFIG_CPU_FREQ_PMAC)     += cpufreq.o
+obj-$(CONFIG_NVRAM)             += nvram.o
+# ppc64 pmac doesn't define CONFIG_NVRAM but needs nvram stuff
+obj-$(CONFIG_PPC64)             += nvram.o
+obj-$(CONFIG_SMP)               += smp.o
diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c
new file mode 100644
index 000000000000..8be2f7d071f0
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/backlight.c
@@ -0,0 +1,202 @@
+/*
+ * Miscellaneous procedures for dealing with the PowerMac hardware.
+ * Contains support for the backlight.
+ *
+ *   Copyright (C) 2000 Benjamin Herrenschmidt
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/stddef.h>
+#include <linux/reboot.h>
+#include <linux/nvram.h>
+#include <linux/console.h>
+#include <asm/sections.h>
+#include <asm/ptrace.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <asm/nvram.h>
+#include <asm/backlight.h>
+
+#include <linux/adb.h>
+#include <linux/pmu.h>
+
+static struct backlight_controller *backlighter;
+static void* backlighter_data;
+static int backlight_autosave;
+static int backlight_level = BACKLIGHT_MAX;
+static int backlight_enabled = 1;
+static int backlight_req_level = -1;
+static int backlight_req_enable = -1;
+
+static void backlight_callback(void *);
+static DECLARE_WORK(backlight_work, backlight_callback, NULL);
+
+void register_backlight_controller(struct backlight_controller *ctrler,
+                                          void *data, char *type)
+{
+        struct device_node* bk_node;
+        char *prop;
+        int valid = 0;
+
+        /* There's already a matching controller, bail out */
+        if (backlighter != NULL)
+                return;
+
+        bk_node = find_devices("backlight");
+
+#ifdef CONFIG_ADB_PMU
+        /* Special case for the old PowerBook since I can't test on it */
+        backlight_autosave = machine_is_compatible("AAPL,3400/2400")
+                || machine_is_compatible("AAPL,3500");
+        if ((backlight_autosave
+             || machine_is_compatible("AAPL,PowerBook1998")
+             || machine_is_compatible("PowerBook1,1"))
+            && !strcmp(type, "pmu"))
+                valid = 1;
+#endif
+        if (bk_node) {
+                prop = get_property(bk_node, "backlight-control", NULL);
+                if (prop && !strncmp(prop, type, strlen(type)))
+                        valid = 1;
+        }
+        if (!valid)
+                return;
+        backlighter = ctrler;
+        backlighter_data = data;
+
+        if (bk_node && !backlight_autosave)
+                prop = get_property(bk_node, "bklt", NULL);
+        else
+                prop = NULL;
+        if (prop) {
+                backlight_level = ((*prop)+1) >> 1;
+                if (backlight_level > BACKLIGHT_MAX)
+                        backlight_level = BACKLIGHT_MAX;
+        }
+
+#ifdef CONFIG_ADB_PMU
+        if (backlight_autosave) {
+                struct adb_request req;
+                pmu_request(&req, NULL, 2, 0xd9, 0);
+                while (!req.complete)
+                        pmu_poll();
+                backlight_level = req.reply[0] >> 4;
+        }
+#endif
+        acquire_console_sem();
+        if (!backlighter->set_enable(1, backlight_level, data))
+                backlight_enabled = 1;
+        release_console_sem();
+
+        printk(KERN_INFO "Registered \"%s\" backlight controller,"
+               "level: %d/15\n", type, backlight_level);
+}
+EXPORT_SYMBOL(register_backlight_controller);
+
+void unregister_backlight_controller(struct backlight_controller
+                                            *ctrler, void *data)
+{
+        /* We keep the current backlight level (for now) */
+        if (ctrler == backlighter && data == backlighter_data)
+                backlighter = NULL;
+}
+EXPORT_SYMBOL(unregister_backlight_controller);
+
+static int __set_backlight_enable(int enable)
+{
+        int rc;
+
+        if (!backlighter)
+                return -ENODEV;
+        acquire_console_sem();
+        rc = backlighter->set_enable(enable, backlight_level,
+                                     backlighter_data);
+        if (!rc)
+                backlight_enabled = enable;
+        release_console_sem();
+        return rc;
+}
+int set_backlight_enable(int enable)
+{
+        if (!backlighter)
+                return -ENODEV;
+        backlight_req_enable = enable;
+        schedule_work(&backlight_work);
+        return 0;
+}
+
+EXPORT_SYMBOL(set_backlight_enable);
+
+int get_backlight_enable(void)
+{
+        if (!backlighter)
+                return -ENODEV;
+        return backlight_enabled;
+}
+EXPORT_SYMBOL(get_backlight_enable);
+
+static int __set_backlight_level(int level)
+{
+        int rc = 0;
+
+        if (!backlighter)
+                return -ENODEV;
+        if (level < BACKLIGHT_MIN)
+                level = BACKLIGHT_OFF;
+        if (level > BACKLIGHT_MAX)
+                level = BACKLIGHT_MAX;
+        acquire_console_sem();
+        if (backlight_enabled)
+                rc = backlighter->set_level(level, backlighter_data);
+        if (!rc)
+                backlight_level = level;
+        release_console_sem();
+        if (!rc && !backlight_autosave) {
+                level <<=1;
+                if (level & 0x10)
+                        level |= 0x01;
+                // -- todo: save to property "bklt"
+        }
+        return rc;
+}
+int set_backlight_level(int level)
+{
+        if (!backlighter)
+                return -ENODEV;
+        backlight_req_level = level;
+        schedule_work(&backlight_work);
+        return 0;
+}
+
+EXPORT_SYMBOL(set_backlight_level);
+
+int get_backlight_level(void)
+{
+        if (!backlighter)
+                return -ENODEV;
+        return backlight_level;
+}
+EXPORT_SYMBOL(get_backlight_level);
+
+static void backlight_callback(void *dummy)
+{
+        int level, enable;
+
+        do {
+                level = backlight_req_level;
+                enable = backlight_req_enable;
+                mb();
+
+                if (level >= 0)
+                        __set_backlight_level(level);
+                if (enable >= 0)
+                        __set_backlight_enable(enable);
+        } while(cmpxchg(&backlight_req_level, level, -1) != level ||
+                cmpxchg(&backlight_req_enable, enable, -1) != enable);
+}
diff --git a/arch/powerpc/platforms/powermac/cache.S b/arch/powerpc/platforms/powermac/cache.S
new file mode 100644
index 000000000000..fb977de6b704
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/cache.S
@@ -0,0 +1,359 @@
+/*
+ * This file contains low-level cache management functions
+ * used for sleep and CPU speed changes on Apple machines.
+ * (In fact the only thing that is Apple-specific is that we assume
+ * that we can read from ROM at physical address 0xfff00000.)
+ *
+ *    Copyright (C) 2004 Paul Mackerras (paulus@samba.org) and
+ *                       Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+#include <asm/cputable.h>
+
+/*
+ * Flush and disable all data caches (dL1, L2, L3). This is used
+ * when going to sleep, when doing a PMU based cpufreq transition,
+ * or when "offlining" a CPU on SMP machines. This code is over
+ * paranoid, but I've had enough issues with various CPU revs and
+ * bugs that I decided it was worth beeing over cautious
+ */
+
+_GLOBAL(flush_disable_caches)
+#ifndef CONFIG_6xx
+        blr
+#else
+BEGIN_FTR_SECTION
+        b       flush_disable_745x
+END_FTR_SECTION_IFSET(CPU_FTR_SPEC7450)
+BEGIN_FTR_SECTION
+        b       flush_disable_75x
+END_FTR_SECTION_IFSET(CPU_FTR_L2CR)
+        b       __flush_disable_L1
+
+/* This is the code for G3 and 74[01]0 */
+flush_disable_75x:
+        mflr    r10
+
+        /* Turn off EE and DR in MSR */
+        mfmsr   r11
+        rlwinm  r0,r11,0,~MSR_EE
+        rlwinm  r0,r0,0,~MSR_DR
+        sync
+        mtmsr   r0
+        isync
+
+        /* Stop DST streams */
+BEGIN_FTR_SECTION
+        DSSALL
+        sync
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+
+        /* Stop DPM */
+        mfspr   r8,SPRN_HID0            /* Save SPRN_HID0 in r8 */
+        rlwinm  r4,r8,0,12,10           /* Turn off HID0[DPM] */
+        sync
+        mtspr   SPRN_HID0,r4            /* Disable DPM */
+        sync
+
+        /* Disp-flush L1. We have a weird problem here that I never
+         * totally figured out. On 750FX, using the ROM for the flush
+         * results in a non-working flush. We use that workaround for
+         * now until I finally understand what's going on. --BenH
+         */
+
+        /* ROM base by default */
+        lis     r4,0xfff0
+        mfpvr   r3
+        srwi    r3,r3,16
+        cmplwi  cr0,r3,0x7000
+        bne+    1f
+        /* RAM base on 750FX */
+        li      r4,0
+1:      li      r4,0x4000
+        mtctr   r4
+1:      lwz     r0,0(r4)
+        addi    r4,r4,32
+        bdnz    1b
+        sync
+        isync
+
+        /* Disable / invalidate / enable L1 data */
+        mfspr   r3,SPRN_HID0
+        rlwinm  r3,r3,0,~(HID0_DCE | HID0_ICE)
+        mtspr   SPRN_HID0,r3
+        sync
+        isync
+        ori     r3,r3,(HID0_DCE|HID0_DCI|HID0_ICE|HID0_ICFI)
+        sync
+        isync
+        mtspr   SPRN_HID0,r3
+        xori    r3,r3,(HID0_DCI|HID0_ICFI)
+        mtspr   SPRN_HID0,r3
+        sync
+
+        /* Get the current enable bit of the L2CR into r4 */
+        mfspr   r5,SPRN_L2CR
+        /* Set to data-only (pre-745x bit) */
+        oris    r3,r5,L2CR_L2DO@h
+        b       2f
+        /* When disabling L2, code must be in L1 */
+        .balign 32
+1:      mtspr   SPRN_L2CR,r3
+3:      sync
+        isync
+        b       1f
+2:      b       3f
+3:      sync
+        isync
+        b       1b
+1:      /* disp-flush L2. The interesting thing here is that the L2 can be
+         * up to 2Mb ... so using the ROM, we'll end up wrapping back to memory
+         * but that is probbaly fine. We disp-flush over 4Mb to be safe
+         */
+        lis     r4,2
+        mtctr   r4
+        lis     r4,0xfff0
+1:      lwz     r0,0(r4)
+        addi    r4,r4,32
+        bdnz    1b
+        sync
+        isync
+        lis     r4,2
+        mtctr   r4
+        lis     r4,0xfff0
+1:      dcbf    0,r4
+        addi    r4,r4,32
+        bdnz    1b
+        sync
+        isync
+
+        /* now disable L2 */
+        rlwinm  r5,r5,0,~L2CR_L2E
+        b       2f
+        /* When disabling L2, code must be in L1 */
+        .balign 32
+1:      mtspr   SPRN_L2CR,r5
+3:      sync
+        isync
+        b       1f
+2:      b       3f
+3:      sync
+        isync
+        b       1b
+1:      sync
+        isync
+        /* Invalidate L2. This is pre-745x, we clear the L2I bit ourselves */
+        oris    r4,r5,L2CR_L2I@h
+        mtspr   SPRN_L2CR,r4
+        sync
+        isync
+
+        /* Wait for the invalidation to complete */
+1:      mfspr   r3,SPRN_L2CR
+        rlwinm. r0,r3,0,31,31
+        bne     1b
+
+        /* Clear L2I */
+        xoris   r4,r4,L2CR_L2I@h
+        sync
+        mtspr   SPRN_L2CR,r4
+        sync
+
+        /* now disable the L1 data cache */
+        mfspr   r0,SPRN_HID0
+        rlwinm  r0,r0,0,~(HID0_DCE|HID0_ICE)
+        mtspr   SPRN_HID0,r0
+        sync
+        isync
+
+        /* Restore HID0[DPM] to whatever it was before */
+        sync
+        mfspr   r0,SPRN_HID0
+        rlwimi  r0,r8,0,11,11           /* Turn back HID0[DPM] */
+        mtspr   SPRN_HID0,r0
+        sync
+
+        /* restore DR and EE */
+        sync
+        mtmsr   r11
+        isync
+
+        mtlr    r10
+        blr
+
+/* This code is for 745x processors */
+flush_disable_745x:
+        /* Turn off EE and DR in MSR */
+        mfmsr   r11
+        rlwinm  r0,r11,0,~MSR_EE
+        rlwinm  r0,r0,0,~MSR_DR
+        sync
+        mtmsr   r0
+        isync
+
+        /* Stop prefetch streams */
+        DSSALL
+        sync
+
+        /* Disable L2 prefetching */
+        mfspr   r0,SPRN_MSSCR0
+        rlwinm  r0,r0,0,0,29
+        mtspr   SPRN_MSSCR0,r0
+        sync
+        isync
+        lis     r4,0
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+        dcbf    0,r4
+
+        /* Due to a bug with the HW flush on some CPU revs, we occasionally
+         * experience data corruption. I'm adding a displacement flush along
+         * with a dcbf loop over a few Mb to "help". The problem isn't totally
+         * fixed by this in theory, but at least, in practice, I couldn't reproduce
+         * it even with a big hammer...
+         */
+
+        lis     r4,0x0002
+        mtctr   r4
+        li      r4,0
+1:
+        lwz     r0,0(r4)
+        addi    r4,r4,32                /* Go to start of next cache line */
+        bdnz    1b
+        isync
+
+        /* Now, flush the first 4MB of memory */
+        lis     r4,0x0002
+        mtctr   r4
+        li      r4,0
+        sync
+1:
+        dcbf    0,r4
+        addi    r4,r4,32                /* Go to start of next cache line */
+        bdnz    1b
+
+        /* Flush and disable the L1 data cache */
+        mfspr   r6,SPRN_LDSTCR
+        lis     r3,0xfff0       /* read from ROM for displacement flush */
+        li      r4,0xfe         /* start with only way 0 unlocked */
+        li      r5,128          /* 128 lines in each way */
+1:      mtctr   r5
+        rlwimi  r6,r4,0,24,31
+        mtspr   SPRN_LDSTCR,r6
+        sync
+        isync
+2:      lwz     r0,0(r3)        /* touch each cache line */
+        addi    r3,r3,32
+        bdnz    2b
+        rlwinm  r4,r4,1,24,30   /* move on to the next way */
+        ori     r4,r4,1
+        cmpwi   r4,0xff         /* all done? */
+        bne     1b
+        /* now unlock the L1 data cache */
+        li      r4,0
+        rlwimi  r6,r4,0,24,31
+        sync
+        mtspr   SPRN_LDSTCR,r6
+        sync
+        isync
+
+        /* Flush the L2 cache using the hardware assist */
+        mfspr   r3,SPRN_L2CR
+        cmpwi   r3,0            /* check if it is enabled first */
+        bge     4f
+        oris    r0,r3,(L2CR_L2IO_745x|L2CR_L2DO_745x)@h
+        b       2f
+        /* When disabling/locking L2, code must be in L1 */
+        .balign 32
+1:      mtspr   SPRN_L2CR,r0    /* lock the L2 cache */
+3:      sync
+        isync
+        b       1f
+2:      b       3f
+3:      sync
+        isync
+        b       1b
+1:      sync
+        isync
+        ori     r0,r3,L2CR_L2HWF_745x
+        sync
+        mtspr   SPRN_L2CR,r0    /* set the hardware flush bit */
+3:      mfspr   r0,SPRN_L2CR    /* wait for it to go to 0 */
+        andi.   r0,r0,L2CR_L2HWF_745x
+        bne     3b
+        sync
+        rlwinm  r3,r3,0,~L2CR_L2E
+        b       2f
+        /* When disabling L2, code must be in L1 */
+        .balign 32
+1:      mtspr   SPRN_L2CR,r3    /* disable the L2 cache */
+3:      sync
+        isync
+        b       1f
+2:      b       3f
+3:      sync
+        isync
+        b       1b
+1:      sync
+        isync
+        oris    r4,r3,L2CR_L2I@h
+        mtspr   SPRN_L2CR,r4
+        sync
+        isync
+1:      mfspr   r4,SPRN_L2CR
+        andis.  r0,r4,L2CR_L2I@h
+        bne     1b
+        sync
+
+BEGIN_FTR_SECTION
+        /* Flush the L3 cache using the hardware assist */
+4:      mfspr   r3,SPRN_L3CR
+        cmpwi   r3,0            /* check if it is enabled */
+        bge     6f
+        oris    r0,r3,L3CR_L3IO@h
+        ori     r0,r0,L3CR_L3DO
+        sync
+        mtspr   SPRN_L3CR,r0    /* lock the L3 cache */
+        sync
+        isync
+        ori     r0,r0,L3CR_L3HWF
+        sync
+        mtspr   SPRN_L3CR,r0    /* set the hardware flush bit */
+5:      mfspr   r0,SPRN_L3CR    /* wait for it to go to zero */
+        andi.   r0,r0,L3CR_L3HWF
+        bne     5b
+        rlwinm  r3,r3,0,~L3CR_L3E
+        sync
+        mtspr   SPRN_L3CR,r3    /* disable the L3 cache */
+        sync
+        ori     r4,r3,L3CR_L3I
+        mtspr   SPRN_L3CR,r4
+1:      mfspr   r4,SPRN_L3CR
+        andi.   r0,r4,L3CR_L3I
+        bne     1b
+        sync
+END_FTR_SECTION_IFSET(CPU_FTR_L3CR)
+
+6:      mfspr   r0,SPRN_HID0    /* now disable the L1 data cache */
+        rlwinm  r0,r0,0,~HID0_DCE
+        mtspr   SPRN_HID0,r0
+        sync
+        isync
+        mtmsr   r11             /* restore DR and EE */
+        isync
+        blr
+#endif  /* CONFIG_6xx */
diff --git a/arch/powerpc/platforms/powermac/cpufreq.c b/arch/powerpc/platforms/powermac/cpufreq.c
new file mode 100644
index 000000000000..c47f8b69725c
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/cpufreq.c
@@ -0,0 +1,726 @@
+/*
+ *  arch/ppc/platforms/pmac_cpufreq.c
+ *
+ *  Copyright (C) 2002 - 2005 Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ *  Copyright (C) 2004        John Steele Scott <toojays@toojays.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * TODO: Need a big cleanup here. Basically, we need to have different
+ * cpufreq_driver structures for the different type of HW instead of the
+ * current mess. We also need to better deal with the detection of the
+ * type of machine.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#include <linux/slab.h>
+#include <linux/cpufreq.h>
+#include <linux/init.h>
+#include <linux/sysdev.h>
+#include <linux/i2c.h>
+#include <linux/hardirq.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <asm/irq.h>
+#include <asm/pmac_feature.h>
+#include <asm/mmu_context.h>
+#include <asm/sections.h>
+#include <asm/cputable.h>
+#include <asm/time.h>
+#include <asm/system.h>
+#include <asm/mpic.h>
+#include <asm/keylargo.h>
+
+/* WARNING !!! This will cause calibrate_delay() to be called,
+ * but this is an __init function ! So you MUST go edit
+ * init/main.c to make it non-init before enabling DEBUG_FREQ
+ */
+#undef DEBUG_FREQ
+
+/*
+ * There is a problem with the core cpufreq code on SMP kernels,
+ * it won't recalculate the Bogomips properly
+ */
+#ifdef CONFIG_SMP
+#warning "WARNING, CPUFREQ not recommended on SMP kernels"
+#endif
+
+extern void low_choose_7447a_dfs(int dfs);
+extern void low_choose_750fx_pll(int pll);
+extern void low_sleep_handler(void);
+
+/*
+ * Currently, PowerMac cpufreq supports only high & low frequencies
+ * that are set by the firmware
+ */
+static unsigned int low_freq;
+static unsigned int hi_freq;
+static unsigned int cur_freq;
+static unsigned int sleep_freq;
+
+/*
+ * Different models uses different mecanisms to switch the frequency
+ */
+static int (*set_speed_proc)(int low_speed);
+static unsigned int (*get_speed_proc)(void);
+
+/*
+ * Some definitions used by the various speedprocs
+ */
+static u32 voltage_gpio;
+static u32 frequency_gpio;
+static u32 slew_done_gpio;
+static int no_schedule;
+static int has_cpu_l2lve;
+static int is_pmu_based;
+
+/* There are only two frequency states for each processor. Values
+ * are in kHz for the time being.
+ */
+#define CPUFREQ_HIGH                  0
+#define CPUFREQ_LOW                   1
+
+static struct cpufreq_frequency_table pmac_cpu_freqs[] = {
+        {CPUFREQ_HIGH,          0},
+        {CPUFREQ_LOW,           0},
+        {0,                     CPUFREQ_TABLE_END},
+};
+
+static struct freq_attr* pmac_cpu_freqs_attr[] = {
+        &cpufreq_freq_attr_scaling_available_freqs,
+        NULL,
+};
+
+static inline void local_delay(unsigned long ms)
+{
+        if (no_schedule)
+                mdelay(ms);
+        else
+                msleep(ms);
+}
+
+#ifdef DEBUG_FREQ
+static inline void debug_calc_bogomips(void)
+{
+        /* This will cause a recalc of bogomips and display the
+         * result. We backup/restore the value to avoid affecting the
+         * core cpufreq framework's own calculation.
+         */
+        extern void calibrate_delay(void);
+
+        unsigned long save_lpj = loops_per_jiffy;
+        calibrate_delay();
+        loops_per_jiffy = save_lpj;
+}
+#endif /* DEBUG_FREQ */
+
+/* Switch CPU speed under 750FX CPU control
+ */
+static int cpu_750fx_cpu_speed(int low_speed)
+{
+        u32 hid2;
+
+        if (low_speed == 0) {
+                /* ramping up, set voltage first */
+                pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x05);
+                /* Make sure we sleep for at least 1ms */
+                local_delay(10);
+
+                /* tweak L2 for high voltage */
+                if (has_cpu_l2lve) {
+                        hid2 = mfspr(SPRN_HID2);
+                        hid2 &= ~0x2000;
+                        mtspr(SPRN_HID2, hid2);
+                }
+        }
+#ifdef CONFIG_6xx
+        low_choose_750fx_pll(low_speed);
+#endif
+        if (low_speed == 1) {
+                /* tweak L2 for low voltage */
+                if (has_cpu_l2lve) {
+                        hid2 = mfspr(SPRN_HID2);
+                        hid2 |= 0x2000;
+                        mtspr(SPRN_HID2, hid2);
+                }
+
+                /* ramping down, set voltage last */
+                pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x04);
+                local_delay(10);
+        }
+
+        return 0;
+}
+
+static unsigned int cpu_750fx_get_cpu_speed(void)
+{
+        if (mfspr(SPRN_HID1) & HID1_PS)
+                return low_freq;
+        else
+                return hi_freq;
+}
+
+/* Switch CPU speed using DFS */
+static int dfs_set_cpu_speed(int low_speed)
+{
+        if (low_speed == 0) {
+                /* ramping up, set voltage first */
+                pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x05);
+                /* Make sure we sleep for at least 1ms */
+                local_delay(1);
+        }
+
+        /* set frequency */
+#ifdef CONFIG_6xx
+        low_choose_7447a_dfs(low_speed);
+#endif
+        udelay(100);
+
+        if (low_speed == 1) {
+                /* ramping down, set voltage last */
+                pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x04);
+                local_delay(1);
+        }
+
+        return 0;
+}
+
+static unsigned int dfs_get_cpu_speed(void)
+{
+        if (mfspr(SPRN_HID1) & HID1_DFS)
+                return low_freq;
+        else
+                return hi_freq;
+}
+
+
+/* Switch CPU speed using slewing GPIOs
+ */
+static int gpios_set_cpu_speed(int low_speed)
+{
+        int gpio, timeout = 0;
+
+        /* If ramping up, set voltage first */
+        if (low_speed == 0) {
+                pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x05);
+                /* Delay is way too big but it's ok, we schedule */
+                local_delay(10);
+        }
+
+        /* Set frequency */
+        gpio =  pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, frequency_gpio, 0);
+        if (low_speed == ((gpio & 0x01) == 0))
+                goto skip;
+
+        pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, frequency_gpio,
+                          low_speed ? 0x04 : 0x05);
+        udelay(200);
+        do {
+                if (++timeout > 100)
+                        break;
+                local_delay(1);
+                gpio = pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, slew_done_gpio, 0);
+        } while((gpio & 0x02) == 0);
+ skip:
+        /* If ramping down, set voltage last */
+        if (low_speed == 1) {
+                pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x04);
+                /* Delay is way too big but it's ok, we schedule */
+                local_delay(10);
+        }
+
+#ifdef DEBUG_FREQ
+        debug_calc_bogomips();
+#endif
+
+        return 0;
+}
+
+/* Switch CPU speed under PMU control
+ */
+static int pmu_set_cpu_speed(int low_speed)
+{
+        struct adb_request req;
+        unsigned long save_l2cr;
+        unsigned long save_l3cr;
+        unsigned int pic_prio;
+        unsigned long flags;
+
+        preempt_disable();
+
+#ifdef DEBUG_FREQ
+        printk(KERN_DEBUG "HID1, before: %x\n", mfspr(SPRN_HID1));
+#endif
+        pmu_suspend();
+
+        /* Disable all interrupt sources on openpic */
+        pic_prio = mpic_cpu_get_priority();
+        mpic_cpu_set_priority(0xf);
+
+        /* Make sure the decrementer won't interrupt us */
+        asm volatile("mtdec %0" : : "r" (0x7fffffff));
+        /* Make sure any pending DEC interrupt occuring while we did
+         * the above didn't re-enable the DEC */
+        mb();
+        asm volatile("mtdec %0" : : "r" (0x7fffffff));
+
+        /* We can now disable MSR_EE */
+        local_irq_save(flags);
+
+        /* Giveup the FPU & vec */
+        enable_kernel_fp();
+
+#ifdef CONFIG_ALTIVEC
+        if (cpu_has_feature(CPU_FTR_ALTIVEC))
+                enable_kernel_altivec();
+#endif /* CONFIG_ALTIVEC */
+
+        /* Save & disable L2 and L3 caches */
+        save_l3cr = _get_L3CR();        /* (returns -1 if not available) */
+        save_l2cr = _get_L2CR();        /* (returns -1 if not available) */
+
+        /* Send the new speed command. My assumption is that this command
+         * will cause PLL_CFG[0..3] to be changed next time CPU goes to sleep
+         */
+        pmu_request(&req, NULL, 6, PMU_CPU_SPEED, 'W', 'O', 'O', 'F', low_speed);
+        while (!req.complete)
+                pmu_poll();
+
+        /* Prepare the northbridge for the speed transition */
+        pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,1,1);
+
+        /* Call low level code to backup CPU state and recover from
+         * hardware reset
+         */
+        low_sleep_handler();
+
+        /* Restore the northbridge */
+        pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,1,0);
+
+        /* Restore L2 cache */
+        if (save_l2cr != 0xffffffff && (save_l2cr & L2CR_L2E) != 0)
+                _set_L2CR(save_l2cr);
+        /* Restore L3 cache */
+        if (save_l3cr != 0xffffffff && (save_l3cr & L3CR_L3E) != 0)
+                _set_L3CR(save_l3cr);
+
+        /* Restore userland MMU context */
+        set_context(current->active_mm->context, current->active_mm->pgd);
+
+#ifdef DEBUG_FREQ
+        printk(KERN_DEBUG "HID1, after: %x\n", mfspr(SPRN_HID1));
+#endif
+
+        /* Restore low level PMU operations */
+        pmu_unlock();
+
+        /* Restore decrementer */
+        wakeup_decrementer();
+
+        /* Restore interrupts */
+        mpic_cpu_set_priority(pic_prio);
+
+        /* Let interrupts flow again ... */
+        local_irq_restore(flags);
+
+#ifdef DEBUG_FREQ
+        debug_calc_bogomips();
+#endif
+
+        pmu_resume();
+
+        preempt_enable();
+
+        return 0;
+}
+
+static int do_set_cpu_speed(int speed_mode, int notify)
+{
+        struct cpufreq_freqs freqs;
+        unsigned long l3cr;
+        static unsigned long prev_l3cr;
+
+        freqs.old = cur_freq;
+        freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
+        freqs.cpu = smp_processor_id();
+
+        if (freqs.old == freqs.new)
+                return 0;
+
+        if (notify)
+                cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+        if (speed_mode == CPUFREQ_LOW &&
+            cpu_has_feature(CPU_FTR_L3CR)) {
+                l3cr = _get_L3CR();
+                if (l3cr & L3CR_L3E) {
+                        prev_l3cr = l3cr;
+                        _set_L3CR(0);
+                }
+        }
+        set_speed_proc(speed_mode == CPUFREQ_LOW);
+        if (speed_mode == CPUFREQ_HIGH &&
+            cpu_has_feature(CPU_FTR_L3CR)) {
+                l3cr = _get_L3CR();
+                if ((prev_l3cr & L3CR_L3E) && l3cr != prev_l3cr)
+                        _set_L3CR(prev_l3cr);
+        }
+        if (notify)
+                cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
+
+        return 0;
+}
+
+static unsigned int pmac_cpufreq_get_speed(unsigned int cpu)
+{
+        return cur_freq;
+}
+
+static int pmac_cpufreq_verify(struct cpufreq_policy *policy)
+{
+        return cpufreq_frequency_table_verify(policy, pmac_cpu_freqs);
+}
+
+static int pmac_cpufreq_target( struct cpufreq_policy *policy,
+                                        unsigned int target_freq,
+                                        unsigned int relation)
+{
+        unsigned int    newstate = 0;
+
+        if (cpufreq_frequency_table_target(policy, pmac_cpu_freqs,
+                        target_freq, relation, &newstate))
+                return -EINVAL;
+
+        return do_set_cpu_speed(newstate, 1);
+}
+
+unsigned int pmac_get_one_cpufreq(int i)
+{
+        /* Supports only one CPU for now */
+        return (i == 0) ? cur_freq : 0;
+}
+
+static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
+{
+        if (policy->cpu != 0)
+                return -ENODEV;
+
+        policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
+        policy->cpuinfo.transition_latency      = CPUFREQ_ETERNAL;
+        policy->cur = cur_freq;
+
+        cpufreq_frequency_table_get_attr(pmac_cpu_freqs, policy->cpu);
+        return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs);
+}
+
+static u32 read_gpio(struct device_node *np)
+{
+        u32 *reg = (u32 *)get_property(np, "reg", NULL);
+        u32 offset;
+
+        if (reg == NULL)
+                return 0;
+        /* That works for all keylargos but shall be fixed properly
+         * some day... The problem is that it seems we can't rely
+         * on the "reg" property of the GPIO nodes, they are either
+         * relative to the base of KeyLargo or to the base of the
+         * GPIO space, and the device-tree doesn't help.
+         */
+        offset = *reg;
+        if (offset < KEYLARGO_GPIO_LEVELS0)
+                offset += KEYLARGO_GPIO_LEVELS0;
+        return offset;
+}
+
+static int pmac_cpufreq_suspend(struct cpufreq_policy *policy, pm_message_t pmsg)
+{
+        /* Ok, this could be made a bit smarter, but let's be robust for now. We
+         * always force a speed change to high speed before sleep, to make sure
+         * we have appropriate voltage and/or bus speed for the wakeup process,
+         * and to make sure our loops_per_jiffies are "good enough", that is will
+         * not cause too short delays if we sleep in low speed and wake in high
+         * speed..
+         */
+        no_schedule = 1;
+        sleep_freq = cur_freq;
+        if (cur_freq == low_freq && !is_pmu_based)
+                do_set_cpu_speed(CPUFREQ_HIGH, 0);
+        return 0;
+}
+
+static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
+{
+        /* If we resume, first check if we have a get() function */
+        if (get_speed_proc)
+                cur_freq = get_speed_proc();
+        else
+                cur_freq = 0;
+
+        /* We don't, hrm... we don't really know our speed here, best
+         * is that we force a switch to whatever it was, which is
+         * probably high speed due to our suspend() routine
+         */
+        do_set_cpu_speed(sleep_freq == low_freq ?
+                         CPUFREQ_LOW : CPUFREQ_HIGH, 0);
+
+        no_schedule = 0;
+        return 0;
+}
+
+static struct cpufreq_driver pmac_cpufreq_driver = {
+        .verify         = pmac_cpufreq_verify,
+        .target         = pmac_cpufreq_target,
+        .get            = pmac_cpufreq_get_speed,
+        .init           = pmac_cpufreq_cpu_init,
+        .suspend        = pmac_cpufreq_suspend,
+        .resume         = pmac_cpufreq_resume,
+        .flags          = CPUFREQ_PM_NO_WARN,
+        .attr           = pmac_cpu_freqs_attr,
+        .name           = "powermac",
+        .owner          = THIS_MODULE,
+};
+
+
+static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
+{
+        struct device_node *volt_gpio_np = of_find_node_by_name(NULL,
+                                                                "voltage-gpio");
+        struct device_node *freq_gpio_np = of_find_node_by_name(NULL,
+                                                                "frequency-gpio");
+        struct device_node *slew_done_gpio_np = of_find_node_by_name(NULL,
+                                                                     "slewing-done");
+        u32 *value;
+
+        /*
+         * Check to see if it's GPIO driven or PMU only
+         *
+         * The way we extract the GPIO address is slightly hackish, but it
+         * works well enough for now. We need to abstract the whole GPIO
+         * stuff sooner or later anyway
+         */
+
+        if (volt_gpio_np)
+                voltage_gpio = read_gpio(volt_gpio_np);
+        if (freq_gpio_np)
+                frequency_gpio = read_gpio(freq_gpio_np);
+        if (slew_done_gpio_np)
+                slew_done_gpio = read_gpio(slew_done_gpio_np);
+
+        /* If we use the frequency GPIOs, calculate the min/max speeds based
+         * on the bus frequencies
+         */
+        if (frequency_gpio && slew_done_gpio) {
+                int lenp, rc;
+                u32 *freqs, *ratio;
+
+                freqs = (u32 *)get_property(cpunode, "bus-frequencies", &lenp);
+                lenp /= sizeof(u32);
+                if (freqs == NULL || lenp != 2) {
+                        printk(KERN_ERR "cpufreq: bus-frequencies incorrect or missing\n");
+                        return 1;
+                }
+                ratio = (u32 *)get_property(cpunode, "processor-to-bus-ratio*2", NULL);
+                if (ratio == NULL) {
+                        printk(KERN_ERR "cpufreq: processor-to-bus-ratio*2 missing\n");
+                        return 1;
+                }
+
+                /* Get the min/max bus frequencies */
+                low_freq = min(freqs[0], freqs[1]);
+                hi_freq = max(freqs[0], freqs[1]);
+
+                /* Grrrr.. It _seems_ that the device-tree is lying on the low bus
+                 * frequency, it claims it to be around 84Mhz on some models while
+                 * it appears to be approx. 101Mhz on all. Let's hack around here...
+                 * fortunately, we don't need to be too precise
+                 */
+                if (low_freq < 98000000)
+                        low_freq = 101000000;
+                        
+                /* Convert those to CPU core clocks */
+                low_freq = (low_freq * (*ratio)) / 2000;
+                hi_freq = (hi_freq * (*ratio)) / 2000;
+
+                /* Now we get the frequencies, we read the GPIO to see what is out current
+                 * speed
+                 */
+                rc = pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, frequency_gpio, 0);
+                cur_freq = (rc & 0x01) ? hi_freq : low_freq;
+
+                set_speed_proc = gpios_set_cpu_speed;
+                return 1;
+        }
+
+        /* If we use the PMU, look for the min & max frequencies in the
+         * device-tree
+         */
+        value = (u32 *)get_property(cpunode, "min-clock-frequency", NULL);
+        if (!value)
+                return 1;
+        low_freq = (*value) / 1000;
+        /* The PowerBook G4 12" (PowerBook6,1) has an error in the device-tree
+         * here */
+        if (low_freq < 100000)
+                low_freq *= 10;
+
+        value = (u32 *)get_property(cpunode, "max-clock-frequency", NULL);
+        if (!value)
+                return 1;
+        hi_freq = (*value) / 1000;
+        set_speed_proc = pmu_set_cpu_speed;
+        is_pmu_based = 1;
+
+        return 0;
+}
+
+static int pmac_cpufreq_init_7447A(struct device_node *cpunode)
+{
+        struct device_node *volt_gpio_np;
+
+        if (get_property(cpunode, "dynamic-power-step", NULL) == NULL)
+                return 1;
+
+        volt_gpio_np = of_find_node_by_name(NULL, "cpu-vcore-select");
+        if (volt_gpio_np)
+                voltage_gpio = read_gpio(volt_gpio_np);
+        if (!voltage_gpio){
+                printk(KERN_ERR "cpufreq: missing cpu-vcore-select gpio\n");
+                return 1;
+        }
+
+        /* OF only reports the high frequency */
+        hi_freq = cur_freq;
+        low_freq = cur_freq/2;
+
+        /* Read actual frequency from CPU */
+        cur_freq = dfs_get_cpu_speed();
+        set_speed_proc = dfs_set_cpu_speed;
+        get_speed_proc = dfs_get_cpu_speed;
+
+        return 0;
+}
+
+static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
+{
+        struct device_node *volt_gpio_np;
+        u32 pvr, *value;
+
+        if (get_property(cpunode, "dynamic-power-step", NULL) == NULL)
+                return 1;
+
+        hi_freq = cur_freq;
+        value = (u32 *)get_property(cpunode, "reduced-clock-frequency", NULL);
+        if (!value)
+                return 1;
+        low_freq = (*value) / 1000;
+
+        volt_gpio_np = of_find_node_by_name(NULL, "cpu-vcore-select");
+        if (volt_gpio_np)
+                voltage_gpio = read_gpio(volt_gpio_np);
+
+        pvr = mfspr(SPRN_PVR);
+        has_cpu_l2lve = !((pvr & 0xf00) == 0x100);
+
+        set_speed_proc = cpu_750fx_cpu_speed;
+        get_speed_proc = cpu_750fx_get_cpu_speed;
+        cur_freq = cpu_750fx_get_cpu_speed();
+
+        return 0;
+}
+
+/* Currently, we support the following machines:
+ *
+ *  - Titanium PowerBook 1Ghz (PMU based, 667Mhz & 1Ghz)
+ *  - Titanium PowerBook 800 (PMU based, 667Mhz & 800Mhz)
+ *  - Titanium PowerBook 400 (PMU based, 300Mhz & 400Mhz)
+ *  - Titanium PowerBook 500 (PMU based, 300Mhz & 500Mhz)
+ *  - iBook2 500/600 (PMU based, 400Mhz & 500/600Mhz)
+ *  - iBook2 700 (CPU based, 400Mhz & 700Mhz, support low voltage)
+ *  - Recent MacRISC3 laptops
+ *  - All new machines with 7447A CPUs
+ */
+static int __init pmac_cpufreq_setup(void)
+{
+        struct device_node      *cpunode;
+        u32                     *value;
+
+        if (strstr(cmd_line, "nocpufreq"))
+                return 0;
+
+        /* Assume only one CPU */
+        cpunode = find_type_devices("cpu");
+        if (!cpunode)
+                goto out;
+
+        /* Get current cpu clock freq */
+        value = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+        if (!value)
+                goto out;
+        cur_freq = (*value) / 1000;
+
+        /*  Check for 7447A based MacRISC3 */
+        if (machine_is_compatible("MacRISC3") &&
+            get_property(cpunode, "dynamic-power-step", NULL) &&
+            PVR_VER(mfspr(SPRN_PVR)) == 0x8003) {
+                pmac_cpufreq_init_7447A(cpunode);
+        /* Check for other MacRISC3 machines */
+        } else if (machine_is_compatible("PowerBook3,4") ||
+                   machine_is_compatible("PowerBook3,5") ||
+                   machine_is_compatible("MacRISC3")) {
+                pmac_cpufreq_init_MacRISC3(cpunode);
+        /* Else check for iBook2 500/600 */
+        } else if (machine_is_compatible("PowerBook4,1")) {
+                hi_freq = cur_freq;
+                low_freq = 400000;
+                set_speed_proc = pmu_set_cpu_speed;
+                is_pmu_based = 1;
+        }
+        /* Else check for TiPb 550 */
+        else if (machine_is_compatible("PowerBook3,3") && cur_freq == 550000) {
+                hi_freq = cur_freq;
+                low_freq = 500000;
+                set_speed_proc = pmu_set_cpu_speed;
+                is_pmu_based = 1;
+        }
+        /* Else check for TiPb 400 & 500 */
+        else if (machine_is_compatible("PowerBook3,2")) {
+                /* We only know about the 400 MHz and the 500Mhz model
+                 * they both have 300 MHz as low frequency
+                 */
+                if (cur_freq < 350000 || cur_freq > 550000)
+                        goto out;
+                hi_freq = cur_freq;
+                low_freq = 300000;
+                set_speed_proc = pmu_set_cpu_speed;
+                is_pmu_based = 1;
+        }
+        /* Else check for 750FX */
+        else if (PVR_VER(mfspr(SPRN_PVR)) == 0x7000)
+                pmac_cpufreq_init_750FX(cpunode);
+out:
+        if (set_speed_proc == NULL)
+                return -ENODEV;
+
+        pmac_cpu_freqs[CPUFREQ_LOW].frequency = low_freq;
+        pmac_cpu_freqs[CPUFREQ_HIGH].frequency = hi_freq;
+
+        printk(KERN_INFO "Registering PowerMac CPU frequency driver\n");
+        printk(KERN_INFO "Low: %d Mhz, High: %d Mhz, Boot: %d Mhz\n",
+               low_freq/1000, hi_freq/1000, cur_freq/1000);
+
+        return cpufreq_register_driver(&pmac_cpufreq_driver);
+}
+
+module_init(pmac_cpufreq_setup);
+
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
new file mode 100644
index 000000000000..10f1d942c661
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -0,0 +1,3063 @@
+/*
+ *  arch/ppc/platforms/pmac_feature.c
+ *
+ *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
+ *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ *  TODO:
+ *
+ *   - Replace mdelay with some schedule loop if possible
+ *   - Shorten some obfuscated delays on some routines (like modem
+ *     power)
+ *   - Refcount some clocks (see darwin)
+ *   - Split split split...
+ *
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <asm/sections.h>
+#include <asm/errno.h>
+#include <asm/ohare.h>
+#include <asm/heathrow.h>
+#include <asm/keylargo.h>
+#include <asm/uninorth.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <asm/pmac_feature.h>
+#include <asm/dbdma.h>
+#include <asm/pci-bridge.h>
+#include <asm/pmac_low_i2c.h>
+
+#undef DEBUG_FEATURE
+
+#ifdef DEBUG_FEATURE
+#define DBG(fmt...) printk(KERN_DEBUG fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifdef CONFIG_6xx
+extern int powersave_lowspeed;
+#endif
+
+extern int powersave_nap;
+extern struct device_node *k2_skiplist[2];
+
+
+/*
+ * We use a single global lock to protect accesses. Each driver has
+ * to take care of its own locking
+ */
+static DEFINE_SPINLOCK(feature_lock);
+
+#define LOCK(flags)     spin_lock_irqsave(&feature_lock, flags);
+#define UNLOCK(flags)   spin_unlock_irqrestore(&feature_lock, flags);
+
+
+/*
+ * Instance of some macio stuffs
+ */
+struct macio_chip macio_chips[MAX_MACIO_CHIPS];
+
+struct macio_chip *macio_find(struct device_node *child, int type)
+{
+        while(child) {
+                int     i;
+
+                for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
+                        if (child == macio_chips[i].of_node &&
+                            (!type || macio_chips[i].type == type))
+                                return &macio_chips[i];
+                child = child->parent;
+        }
+        return NULL;
+}
+EXPORT_SYMBOL_GPL(macio_find);
+
+static const char *macio_names[] =
+{
+        "Unknown",
+        "Grand Central",
+        "OHare",
+        "OHareII",
+        "Heathrow",
+        "Gatwick",
+        "Paddington",
+        "Keylargo",
+        "Pangea",
+        "Intrepid",
+        "K2"
+};
+
+
+
+/*
+ * Uninorth reg. access. Note that Uni-N regs are big endian
+ */
+
+#define UN_REG(r)       (uninorth_base + ((r) >> 2))
+#define UN_IN(r)        (in_be32(UN_REG(r)))
+#define UN_OUT(r,v)     (out_be32(UN_REG(r), (v)))
+#define UN_BIS(r,v)     (UN_OUT((r), UN_IN(r) | (v)))
+#define UN_BIC(r,v)     (UN_OUT((r), UN_IN(r) & ~(v)))
+
+static struct device_node *uninorth_node;
+static u32 __iomem *uninorth_base;
+static u32 uninorth_rev;
+static int uninorth_u3;
+static void __iomem *u3_ht;
+
+/*
+ * For each motherboard family, we have a table of functions pointers
+ * that handle the various features.
+ */
+
+typedef long (*feature_call)(struct device_node *node, long param, long value);
+
+struct feature_table_entry {
+        unsigned int    selector;
+        feature_call    function;
+};
+
+struct pmac_mb_def
+{
+        const char*                     model_string;
+        const char*                     model_name;
+        int                             model_id;
+        struct feature_table_entry*     features;
+        unsigned long                   board_flags;
+};
+static struct pmac_mb_def pmac_mb;
+
+/*
+ * Here are the chip specific feature functions
+ */
+
+static inline int simple_feature_tweak(struct device_node *node, int type,
+                                       int reg, u32 mask, int value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+
+        macio = macio_find(node, type);
+        if (!macio)
+                return -ENODEV;
+        LOCK(flags);
+        if (value)
+                MACIO_BIS(reg, mask);
+        else
+                MACIO_BIC(reg, mask);
+        (void)MACIO_IN32(reg);
+        UNLOCK(flags);
+
+        return 0;
+}
+
+#ifndef CONFIG_POWER4
+
+static long ohare_htw_scc_enable(struct device_node *node, long param,
+                                 long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           chan_mask;
+        unsigned long           fcr;
+        unsigned long           flags;
+        int                     htw, trans;
+        unsigned long           rmask;
+
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+        if (!strcmp(node->name, "ch-a"))
+                chan_mask = MACIO_FLAG_SCCA_ON;
+        else if (!strcmp(node->name, "ch-b"))
+                chan_mask = MACIO_FLAG_SCCB_ON;
+        else
+                return -ENODEV;
+
+        htw = (macio->type == macio_heathrow || macio->type == macio_paddington
+                || macio->type == macio_gatwick);
+        /* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
+        trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
+                 pmac_mb.model_id != PMAC_TYPE_YIKES);
+        if (value) {
+#ifdef CONFIG_ADB_PMU
+                if ((param & 0xfff) == PMAC_SCC_IRDA)
+                        pmu_enable_irled(1);
+#endif /* CONFIG_ADB_PMU */
+                LOCK(flags);
+                fcr = MACIO_IN32(OHARE_FCR);
+                /* Check if scc cell need enabling */
+                if (!(fcr & OH_SCC_ENABLE)) {
+                        fcr |= OH_SCC_ENABLE;
+                        if (htw) {
+                                /* Side effect: this will also power up the
+                                 * modem, but it's too messy to figure out on which
+                                 * ports this controls the tranceiver and on which
+                                 * it controls the modem
+                                 */
+                                if (trans)
+                                        fcr &= ~HRW_SCC_TRANS_EN_N;
+                                MACIO_OUT32(OHARE_FCR, fcr);
+                                fcr |= (rmask = HRW_RESET_SCC);
+                                MACIO_OUT32(OHARE_FCR, fcr);
+                        } else {
+                                fcr |= (rmask = OH_SCC_RESET);
+                                MACIO_OUT32(OHARE_FCR, fcr);
+                        }
+                        UNLOCK(flags);
+                        (void)MACIO_IN32(OHARE_FCR);
+                        mdelay(15);
+                        LOCK(flags);
+                        fcr &= ~rmask;
+                        MACIO_OUT32(OHARE_FCR, fcr);
+                }
+                if (chan_mask & MACIO_FLAG_SCCA_ON)
+                        fcr |= OH_SCCA_IO;
+                if (chan_mask & MACIO_FLAG_SCCB_ON)
+                        fcr |= OH_SCCB_IO;
+                MACIO_OUT32(OHARE_FCR, fcr);
+                macio->flags |= chan_mask;
+                UNLOCK(flags);
+                if (param & PMAC_SCC_FLAG_XMON)
+                        macio->flags |= MACIO_FLAG_SCC_LOCKED;
+        } else {
+                if (macio->flags & MACIO_FLAG_SCC_LOCKED)
+                        return -EPERM;
+                LOCK(flags);
+                fcr = MACIO_IN32(OHARE_FCR);
+                if (chan_mask & MACIO_FLAG_SCCA_ON)
+                        fcr &= ~OH_SCCA_IO;
+                if (chan_mask & MACIO_FLAG_SCCB_ON)
+                        fcr &= ~OH_SCCB_IO;
+                MACIO_OUT32(OHARE_FCR, fcr);
+                if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
+                        fcr &= ~OH_SCC_ENABLE;
+                        if (htw && trans)
+                                fcr |= HRW_SCC_TRANS_EN_N;
+                        MACIO_OUT32(OHARE_FCR, fcr);
+                }
+                macio->flags &= ~(chan_mask);
+                UNLOCK(flags);
+                mdelay(10);
+#ifdef CONFIG_ADB_PMU
+                if ((param & 0xfff) == PMAC_SCC_IRDA)
+                        pmu_enable_irled(0);
+#endif /* CONFIG_ADB_PMU */
+        }
+        return 0;
+}
+
+static long ohare_floppy_enable(struct device_node *node, long param,
+                                long value)
+{
+        return simple_feature_tweak(node, macio_ohare,
+                OHARE_FCR, OH_FLOPPY_ENABLE, value);
+}
+
+static long ohare_mesh_enable(struct device_node *node, long param, long value)
+{
+        return simple_feature_tweak(node, macio_ohare,
+                OHARE_FCR, OH_MESH_ENABLE, value);
+}
+
+static long ohare_ide_enable(struct device_node *node, long param, long value)
+{
+        switch(param) {
+        case 0:
+                /* For some reason, setting the bit in set_initial_features()
+                 * doesn't stick. I'm still investigating... --BenH.
+                 */
+                if (value)
+                        simple_feature_tweak(node, macio_ohare,
+                                OHARE_FCR, OH_IOBUS_ENABLE, 1);
+                return simple_feature_tweak(node, macio_ohare,
+                        OHARE_FCR, OH_IDE0_ENABLE, value);
+        case 1:
+                return simple_feature_tweak(node, macio_ohare,
+                        OHARE_FCR, OH_BAY_IDE_ENABLE, value);
+        default:
+                return -ENODEV;
+        }
+}
+
+static long ohare_ide_reset(struct device_node *node, long param, long value)
+{
+        switch(param) {
+        case 0:
+                return simple_feature_tweak(node, macio_ohare,
+                        OHARE_FCR, OH_IDE0_RESET_N, !value);
+        case 1:
+                return simple_feature_tweak(node, macio_ohare,
+                        OHARE_FCR, OH_IDE1_RESET_N, !value);
+        default:
+                return -ENODEV;
+        }
+}
+
+static long ohare_sleep_state(struct device_node *node, long param, long value)
+{
+        struct macio_chip*      macio = &macio_chips[0];
+
+        if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
+                return -EPERM;
+        if (value == 1) {
+                MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
+        } else if (value == 0) {
+                MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
+        }
+
+        return 0;
+}
+
+static long heathrow_modem_enable(struct device_node *node, long param,
+                                  long value)
+{
+        struct macio_chip*      macio;
+        u8                      gpio;
+        unsigned long           flags;
+
+        macio = macio_find(node, macio_unknown);
+        if (!macio)
+                return -ENODEV;
+        gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
+        if (!value) {
+                LOCK(flags);
+                MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
+                UNLOCK(flags);
+                (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
+                mdelay(250);
+        }
+        if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
+            pmac_mb.model_id != PMAC_TYPE_YIKES) {
+                LOCK(flags);
+                if (value)
+                        MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
+                else
+                        MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
+                UNLOCK(flags);
+                (void)MACIO_IN32(HEATHROW_FCR);
+                mdelay(250);
+        }
+        if (value) {
+                LOCK(flags);
+                MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
+                (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250); LOCK(flags);
+                MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
+                (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250); LOCK(flags);
+                MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
+                (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250);
+        }
+        return 0;
+}
+
+static long heathrow_floppy_enable(struct device_node *node, long param,
+                                   long value)
+{
+        return simple_feature_tweak(node, macio_unknown,
+                HEATHROW_FCR,
+                HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
+                value);
+}
+
+static long heathrow_mesh_enable(struct device_node *node, long param,
+                                 long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+
+        macio = macio_find(node, macio_unknown);
+        if (!macio)
+                return -ENODEV;
+        LOCK(flags);
+        /* Set clear mesh cell enable */
+        if (value)
+                MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
+        else
+                MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
+        (void)MACIO_IN32(HEATHROW_FCR);
+        udelay(10);
+        /* Set/Clear termination power */
+        if (value)
+                MACIO_BIC(HEATHROW_MBCR, 0x04000000);
+        else
+                MACIO_BIS(HEATHROW_MBCR, 0x04000000);
+        (void)MACIO_IN32(HEATHROW_MBCR);
+        udelay(10);
+        UNLOCK(flags);
+
+        return 0;
+}
+
+static long heathrow_ide_enable(struct device_node *node, long param,
+                                long value)
+{
+        switch(param) {
+        case 0:
+                return simple_feature_tweak(node, macio_unknown,
+                        HEATHROW_FCR, HRW_IDE0_ENABLE, value);
+        case 1:
+                return simple_feature_tweak(node, macio_unknown,
+                        HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
+        default:
+                return -ENODEV;
+        }
+}
+
+static long heathrow_ide_reset(struct device_node *node, long param,
+                               long value)
+{
+        switch(param) {
+        case 0:
+                return simple_feature_tweak(node, macio_unknown,
+                        HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
+        case 1:
+                return simple_feature_tweak(node, macio_unknown,
+                        HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
+        default:
+                return -ENODEV;
+        }
+}
+
+static long heathrow_bmac_enable(struct device_node *node, long param,
+                                 long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+        if (value) {
+                LOCK(flags);
+                MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
+                MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
+                UNLOCK(flags);
+                (void)MACIO_IN32(HEATHROW_FCR);
+                mdelay(10);
+                LOCK(flags);
+                MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
+                UNLOCK(flags);
+                (void)MACIO_IN32(HEATHROW_FCR);
+                mdelay(10);
+        } else {
+                LOCK(flags);
+                MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
+                UNLOCK(flags);
+        }
+        return 0;
+}
+
+static long heathrow_sound_enable(struct device_node *node, long param,
+                                  long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+
+        /* B&W G3 and Yikes don't support that properly (the
+         * sound appear to never come back after beeing shut down).
+         */
+        if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
+            pmac_mb.model_id == PMAC_TYPE_YIKES)
+                return 0;
+
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+        if (value) {
+                LOCK(flags);
+                MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
+                MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
+                UNLOCK(flags);
+                (void)MACIO_IN32(HEATHROW_FCR);
+        } else {
+                LOCK(flags);
+                MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
+                MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
+                UNLOCK(flags);
+        }
+        return 0;
+}
+
+static u32 save_fcr[6];
+static u32 save_mbcr;
+static u32 save_gpio_levels[2];
+static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
+static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
+static u32 save_unin_clock_ctl;
+static struct dbdma_regs save_dbdma[13];
+static struct dbdma_regs save_alt_dbdma[13];
+
+static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
+{
+        int i;
+
+        /* Save state & config of DBDMA channels */
+        for (i = 0; i < 13; i++) {
+                volatile struct dbdma_regs __iomem * chan = (void __iomem *)
+                        (macio->base + ((0x8000+i*0x100)>>2));
+                save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
+                save[i].cmdptr = in_le32(&chan->cmdptr);
+                save[i].intr_sel = in_le32(&chan->intr_sel);
+                save[i].br_sel = in_le32(&chan->br_sel);
+                save[i].wait_sel = in_le32(&chan->wait_sel);
+        }
+}
+
+static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
+{
+        int i;
+
+        /* Save state & config of DBDMA channels */
+        for (i = 0; i < 13; i++) {
+                volatile struct dbdma_regs __iomem * chan = (void __iomem *)
+                        (macio->base + ((0x8000+i*0x100)>>2));
+                out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
+                while (in_le32(&chan->status) & ACTIVE)
+                        mb();
+                out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
+                out_le32(&chan->cmdptr, save[i].cmdptr);
+                out_le32(&chan->intr_sel, save[i].intr_sel);
+                out_le32(&chan->br_sel, save[i].br_sel);
+                out_le32(&chan->wait_sel, save[i].wait_sel);
+        }
+}
+
+static void heathrow_sleep(struct macio_chip *macio, int secondary)
+{
+        if (secondary) {
+                dbdma_save(macio, save_alt_dbdma);
+                save_fcr[2] = MACIO_IN32(0x38);
+                save_fcr[3] = MACIO_IN32(0x3c);
+        } else {
+                dbdma_save(macio, save_dbdma);
+                save_fcr[0] = MACIO_IN32(0x38);
+                save_fcr[1] = MACIO_IN32(0x3c);
+                save_mbcr = MACIO_IN32(0x34);
+                /* Make sure sound is shut down */
+                MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
+                MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
+                /* This seems to be necessary as well or the fan
+                 * keeps coming up and battery drains fast */
+                MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
+                MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
+                /* Make sure eth is down even if module or sleep
+                 * won't work properly */
+                MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
+        }
+        /* Make sure modem is shut down */
+        MACIO_OUT8(HRW_GPIO_MODEM_RESET,
+                MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
+        MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
+        MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
+
+        /* Let things settle */
+        (void)MACIO_IN32(HEATHROW_FCR);
+}
+
+static void heathrow_wakeup(struct macio_chip *macio, int secondary)
+{
+        if (secondary) {
+                MACIO_OUT32(0x38, save_fcr[2]);
+                (void)MACIO_IN32(0x38);
+                mdelay(1);
+                MACIO_OUT32(0x3c, save_fcr[3]);
+                (void)MACIO_IN32(0x38);
+                mdelay(10);
+                dbdma_restore(macio, save_alt_dbdma);
+        } else {
+                MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
+                (void)MACIO_IN32(0x38);
+                mdelay(1);
+                MACIO_OUT32(0x3c, save_fcr[1]);
+                (void)MACIO_IN32(0x38);
+                mdelay(1);
+                MACIO_OUT32(0x34, save_mbcr);
+                (void)MACIO_IN32(0x38);
+                mdelay(10);
+                dbdma_restore(macio, save_dbdma);
+        }
+}
+
+static long heathrow_sleep_state(struct device_node *node, long param,
+                                 long value)
+{
+        if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
+                return -EPERM;
+        if (value == 1) {
+                if (macio_chips[1].type == macio_gatwick)
+                        heathrow_sleep(&macio_chips[0], 1);
+                heathrow_sleep(&macio_chips[0], 0);
+        } else if (value == 0) {
+                heathrow_wakeup(&macio_chips[0], 0);
+                if (macio_chips[1].type == macio_gatwick)
+                        heathrow_wakeup(&macio_chips[0], 1);
+        }
+        return 0;
+}
+
+static long core99_scc_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+        unsigned long           chan_mask;
+        u32                     fcr;
+
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+        if (!strcmp(node->name, "ch-a"))
+                chan_mask = MACIO_FLAG_SCCA_ON;
+        else if (!strcmp(node->name, "ch-b"))
+                chan_mask = MACIO_FLAG_SCCB_ON;
+        else
+                return -ENODEV;
+
+        if (value) {
+                int need_reset_scc = 0;
+                int need_reset_irda = 0;
+
+                LOCK(flags);
+                fcr = MACIO_IN32(KEYLARGO_FCR0);
+                /* Check if scc cell need enabling */
+                if (!(fcr & KL0_SCC_CELL_ENABLE)) {
+                        fcr |= KL0_SCC_CELL_ENABLE;
+                        need_reset_scc = 1;
+                }
+                if (chan_mask & MACIO_FLAG_SCCA_ON) {
+                        fcr |= KL0_SCCA_ENABLE;
+                        /* Don't enable line drivers for I2S modem */
+                        if ((param & 0xfff) == PMAC_SCC_I2S1)
+                                fcr &= ~KL0_SCC_A_INTF_ENABLE;
+                        else
+                                fcr |= KL0_SCC_A_INTF_ENABLE;
+                }
+                if (chan_mask & MACIO_FLAG_SCCB_ON) {
+                        fcr |= KL0_SCCB_ENABLE;
+                        /* Perform irda specific inits */
+                        if ((param & 0xfff) == PMAC_SCC_IRDA) {
+                                fcr &= ~KL0_SCC_B_INTF_ENABLE;
+                                fcr |= KL0_IRDA_ENABLE;
+                                fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
+                                fcr |= KL0_IRDA_SOURCE1_SEL;
+                                fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
+                                fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
+                                need_reset_irda = 1;
+                        } else
+                                fcr |= KL0_SCC_B_INTF_ENABLE;
+                }
+                MACIO_OUT32(KEYLARGO_FCR0, fcr);
+                macio->flags |= chan_mask;
+                if (need_reset_scc)  {
+                        MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                        UNLOCK(flags);
+                        mdelay(15);
+                        LOCK(flags);
+                        MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
+                }
+                if (need_reset_irda)  {
+                        MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                        UNLOCK(flags);
+                        mdelay(15);
+                        LOCK(flags);
+                        MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
+                }
+                UNLOCK(flags);
+                if (param & PMAC_SCC_FLAG_XMON)
+                        macio->flags |= MACIO_FLAG_SCC_LOCKED;
+        } else {
+                if (macio->flags & MACIO_FLAG_SCC_LOCKED)
+                        return -EPERM;
+                LOCK(flags);
+                fcr = MACIO_IN32(KEYLARGO_FCR0);
+                if (chan_mask & MACIO_FLAG_SCCA_ON)
+                        fcr &= ~KL0_SCCA_ENABLE;
+                if (chan_mask & MACIO_FLAG_SCCB_ON) {
+                        fcr &= ~KL0_SCCB_ENABLE;
+                        /* Perform irda specific clears */
+                        if ((param & 0xfff) == PMAC_SCC_IRDA) {
+                                fcr &= ~KL0_IRDA_ENABLE;
+                                fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
+                                fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
+                                fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
+                        }
+                }
+                MACIO_OUT32(KEYLARGO_FCR0, fcr);
+                if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
+                        fcr &= ~KL0_SCC_CELL_ENABLE;
+                        MACIO_OUT32(KEYLARGO_FCR0, fcr);
+                }
+                macio->flags &= ~(chan_mask);
+                UNLOCK(flags);
+                mdelay(10);
+        }
+        return 0;
+}
+
+static long
+core99_modem_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip*      macio;
+        u8                      gpio;
+        unsigned long           flags;
+
+        /* Hack for internal USB modem */
+        if (node == NULL) {
+                if (macio_chips[0].type != macio_keylargo)
+                        return -ENODEV;
+                node = macio_chips[0].of_node;
+        }
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+        gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
+        gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
+        gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
+
+        if (!value) {
+                LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
+                UNLOCK(flags);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                mdelay(250);
+        }
+        LOCK(flags);
+        if (value) {
+                MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
+                UNLOCK(flags);
+                (void)MACIO_IN32(KEYLARGO_FCR2);
+                mdelay(250);
+        } else {
+                MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
+                UNLOCK(flags);
+        }
+        if (value) {
+                LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250); LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250); LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250);
+        }
+        return 0;
+}
+
+static long
+pangea_modem_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip*      macio;
+        u8                      gpio;
+        unsigned long           flags;
+
+        /* Hack for internal USB modem */
+        if (node == NULL) {
+                if (macio_chips[0].type != macio_pangea &&
+                    macio_chips[0].type != macio_intrepid)
+                        return -ENODEV;
+                node = macio_chips[0].of_node;
+        }
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+        gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
+        gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
+        gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
+
+        if (!value) {
+                LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
+                UNLOCK(flags);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                mdelay(250);
+        }
+        LOCK(flags);
+        if (value) {
+                MACIO_OUT8(KL_GPIO_MODEM_POWER,
+                        KEYLARGO_GPIO_OUTPUT_ENABLE);
+                UNLOCK(flags);
+                (void)MACIO_IN32(KEYLARGO_FCR2);
+                mdelay(250);
+        } else {
+                MACIO_OUT8(KL_GPIO_MODEM_POWER,
+                        KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
+                UNLOCK(flags);
+        }
+        if (value) {
+                LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250); LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250); LOCK(flags);
+                MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
+                (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
+                UNLOCK(flags); mdelay(250);
+        }
+        return 0;
+}
+
+static long
+core99_ata100_enable(struct device_node *node, long value)
+{
+        unsigned long flags;
+        struct pci_dev *pdev = NULL;
+        u8 pbus, pid;
+
+        if (uninorth_rev < 0x24)
+                return -ENODEV;
+
+        LOCK(flags);
+        if (value)
+                UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
+        else
+                UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
+        (void)UN_IN(UNI_N_CLOCK_CNTL);
+        UNLOCK(flags);
+        udelay(20);
+
+        if (value) {
+                if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
+                        pdev = pci_find_slot(pbus, pid);
+                if (pdev == NULL)
+                        return 0;
+                pci_enable_device(pdev);
+                pci_set_master(pdev);
+        }
+        return 0;
+}
+
+static long
+core99_ide_enable(struct device_node *node, long param, long value)
+{
+        /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
+         * based ata-100
+         */
+        switch(param) {
+            case 0:
+                return simple_feature_tweak(node, macio_unknown,
+                        KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
+            case 1:
+                return simple_feature_tweak(node, macio_unknown,
+                        KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
+            case 2:
+                return simple_feature_tweak(node, macio_unknown,
+                        KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
+            case 3:
+                return core99_ata100_enable(node, value);
+            default:
+                return -ENODEV;
+        }
+}
+
+static long
+core99_ide_reset(struct device_node *node, long param, long value)
+{
+        switch(param) {
+            case 0:
+                return simple_feature_tweak(node, macio_unknown,
+                        KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
+            case 1:
+                return simple_feature_tweak(node, macio_unknown,
+                        KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
+            case 2:
+                return simple_feature_tweak(node, macio_unknown,
+                        KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
+            default:
+                return -ENODEV;
+        }
+}
+
+static long
+core99_gmac_enable(struct device_node *node, long param, long value)
+{
+        unsigned long flags;
+
+        LOCK(flags);
+        if (value)
+                UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
+        else
+                UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
+        (void)UN_IN(UNI_N_CLOCK_CNTL);
+        UNLOCK(flags);
+        udelay(20);
+
+        return 0;
+}
+
+static long
+core99_gmac_phy_reset(struct device_node *node, long param, long value)
+{
+        unsigned long flags;
+        struct macio_chip *macio;
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo && macio->type != macio_pangea &&
+            macio->type != macio_intrepid)
+                return -ENODEV;
+
+        LOCK(flags);
+        MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
+        (void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
+        UNLOCK(flags);
+        mdelay(10);
+        LOCK(flags);
+        MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
+                KEYLARGO_GPIO_OUTOUT_DATA);
+        UNLOCK(flags);
+        mdelay(10);
+
+        return 0;
+}
+
+static long
+core99_sound_chip_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+
+        /* Do a better probe code, screamer G4 desktops &
+         * iMacs can do that too, add a recalibrate  in
+         * the driver as well
+         */
+        if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
+            pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
+                LOCK(flags);
+                if (value)
+                        MACIO_OUT8(KL_GPIO_SOUND_POWER,
+                                KEYLARGO_GPIO_OUTPUT_ENABLE |
+                                KEYLARGO_GPIO_OUTOUT_DATA);
+                else
+                        MACIO_OUT8(KL_GPIO_SOUND_POWER,
+                                KEYLARGO_GPIO_OUTPUT_ENABLE);
+                (void)MACIO_IN8(KL_GPIO_SOUND_POWER);
+                UNLOCK(flags);
+        }
+        return 0;
+}
+
+static long
+core99_airport_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip*      macio;
+        unsigned long           flags;
+        int                     state;
+
+        macio = macio_find(node, 0);
+        if (!macio)
+                return -ENODEV;
+
+        /* Hint: we allow passing of macio itself for the sake of the
+         * sleep code
+         */
+        if (node != macio->of_node &&
+            (!node->parent || node->parent != macio->of_node))
+                return -ENODEV;
+        state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
+        if (value == state)
+                return 0;
+        if (value) {
+                /* This code is a reproduction of OF enable-cardslot
+                 * and init-wireless methods, slightly hacked until
+                 * I got it working.
+                 */
+                LOCK(flags);
+                MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
+                (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
+                UNLOCK(flags);
+                mdelay(10);
+                LOCK(flags);
+                MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
+                (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
+                UNLOCK(flags);
+
+                mdelay(10);
+
+                LOCK(flags);
+                MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
+                (void)MACIO_IN32(KEYLARGO_FCR2);
+                udelay(10);
+                MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
+                (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
+                udelay(10);
+                MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
+                (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
+                udelay(10);
+                MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
+                (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
+                udelay(10);
+                MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
+                (void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
+                udelay(10);
+                MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
+                (void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
+                UNLOCK(flags);
+                udelay(10);
+                MACIO_OUT32(0x1c000, 0);
+                mdelay(1);
+                MACIO_OUT8(0x1a3e0, 0x41);
+                (void)MACIO_IN8(0x1a3e0);
+                udelay(10);
+                LOCK(flags);
+                MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
+                (void)MACIO_IN32(KEYLARGO_FCR2);
+                UNLOCK(flags);
+                mdelay(100);
+
+                macio->flags |= MACIO_FLAG_AIRPORT_ON;
+        } else {
+                LOCK(flags);
+                MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
+                (void)MACIO_IN32(KEYLARGO_FCR2);
+                MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
+                MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
+                MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
+                MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
+                MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
+                (void)MACIO_IN8(KL_GPIO_AIRPORT_4);
+                UNLOCK(flags);
+
+                macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
+        }
+        return 0;
+}
+
+#ifdef CONFIG_SMP
+static long
+core99_reset_cpu(struct device_node *node, long param, long value)
+{
+        unsigned int reset_io = 0;
+        unsigned long flags;
+        struct macio_chip *macio;
+        struct device_node *np;
+        const int dflt_reset_lines[] = {        KL_GPIO_RESET_CPU0,
+                                                KL_GPIO_RESET_CPU1,
+                                                KL_GPIO_RESET_CPU2,
+                                                KL_GPIO_RESET_CPU3 };
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo)
+                return -ENODEV;
+
+        np = find_path_device("/cpus");
+        if (np == NULL)
+                return -ENODEV;
+        for (np = np->child; np != NULL; np = np->sibling) {
+                u32 *num = (u32 *)get_property(np, "reg", NULL);
+                u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
+                if (num == NULL || rst == NULL)
+                        continue;
+                if (param == *num) {
+                        reset_io = *rst;
+                        break;
+                }
+        }
+        if (np == NULL || reset_io == 0)
+                reset_io = dflt_reset_lines[param];
+
+        LOCK(flags);
+        MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
+        (void)MACIO_IN8(reset_io);
+        udelay(1);
+        MACIO_OUT8(reset_io, 0);
+        (void)MACIO_IN8(reset_io);
+        UNLOCK(flags);
+
+        return 0;
+}
+#endif /* CONFIG_SMP */
+
+static long
+core99_usb_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip *macio;
+        unsigned long flags;
+        char *prop;
+        int number;
+        u32 reg;
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo && macio->type != macio_pangea &&
+            macio->type != macio_intrepid)
+                return -ENODEV;
+
+        prop = (char *)get_property(node, "AAPL,clock-id", NULL);
+        if (!prop)
+                return -ENODEV;
+        if (strncmp(prop, "usb0u048", 8) == 0)
+                number = 0;
+        else if (strncmp(prop, "usb1u148", 8) == 0)
+                number = 2;
+        else if (strncmp(prop, "usb2u248", 8) == 0)
+                number = 4;
+        else
+                return -ENODEV;
+
+        /* Sorry for the brute-force locking, but this is only used during
+         * sleep and the timing seem to be critical
+         */
+        LOCK(flags);
+        if (value) {
+                /* Turn ON */
+                if (number == 0) {
+                        MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                        UNLOCK(flags);
+                        mdelay(1);
+                        LOCK(flags);
+                        MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
+                } else if (number == 2) {
+                        MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
+                        UNLOCK(flags);
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                        mdelay(1);
+                        LOCK(flags);
+                        MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
+                } else if (number == 4) {
+                        MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
+                        UNLOCK(flags);
+                        (void)MACIO_IN32(KEYLARGO_FCR1);
+                        mdelay(1);
+                        LOCK(flags);
+                        MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
+                }
+                if (number < 4) {
+                        reg = MACIO_IN32(KEYLARGO_FCR4);
+                        reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
+                                KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
+                        reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
+                                KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
+                        MACIO_OUT32(KEYLARGO_FCR4, reg);
+                        (void)MACIO_IN32(KEYLARGO_FCR4);
+                        udelay(10);
+                } else {
+                        reg = MACIO_IN32(KEYLARGO_FCR3);
+                        reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
+                                KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
+                        reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
+                                KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
+                        MACIO_OUT32(KEYLARGO_FCR3, reg);
+                        (void)MACIO_IN32(KEYLARGO_FCR3);
+                        udelay(10);
+                }
+                if (macio->type == macio_intrepid) {
+                        /* wait for clock stopped bits to clear */
+                        u32 test0 = 0, test1 = 0;
+                        u32 status0, status1;
+                        int timeout = 1000;
+
+                        UNLOCK(flags);
+                        switch (number) {
+                        case 0:
+                                test0 = UNI_N_CLOCK_STOPPED_USB0;
+                                test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
+                                break;
+                        case 2:
+                                test0 = UNI_N_CLOCK_STOPPED_USB1;
+                                test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
+                                break;
+                        case 4:
+                                test0 = UNI_N_CLOCK_STOPPED_USB2;
+                                test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
+                                break;
+                        }
+                        do {
+                                if (--timeout <= 0) {
+                                        printk(KERN_ERR "core99_usb_enable: "
+                                               "Timeout waiting for clocks\n");
+                                        break;
+                                }
+                                mdelay(1);
+                                status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
+                                status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
+                        } while ((status0 & test0) | (status1 & test1));
+                        LOCK(flags);
+                }
+        } else {
+                /* Turn OFF */
+                if (number < 4) {
+                        reg = MACIO_IN32(KEYLARGO_FCR4);
+                        reg |=  KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
+                                KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
+                        reg |=  KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
+                                KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
+                        MACIO_OUT32(KEYLARGO_FCR4, reg);
+                        (void)MACIO_IN32(KEYLARGO_FCR4);
+                        udelay(1);
+                } else {
+                        reg = MACIO_IN32(KEYLARGO_FCR3);
+                        reg |=  KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
+                                KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
+                        reg |=  KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
+                                KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
+                        MACIO_OUT32(KEYLARGO_FCR3, reg);
+                        (void)MACIO_IN32(KEYLARGO_FCR3);
+                        udelay(1);
+                }
+                if (number == 0) {
+                        if (macio->type != macio_intrepid)
+                                MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                        udelay(1);
+                        MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                } else if (number == 2) {
+                        if (macio->type != macio_intrepid)
+                                MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                        udelay(1);
+                        MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
+                        (void)MACIO_IN32(KEYLARGO_FCR0);
+                } else if (number == 4) {
+                        udelay(1);
+                        MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
+                        (void)MACIO_IN32(KEYLARGO_FCR1);
+                }
+                udelay(1);
+        }
+        UNLOCK(flags);
+
+        return 0;
+}
+
+static long
+core99_firewire_enable(struct device_node *node, long param, long value)
+{
+        unsigned long flags;
+        struct macio_chip *macio;
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo && macio->type != macio_pangea &&
+            macio->type != macio_intrepid)
+                return -ENODEV;
+        if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
+                return -ENODEV;
+
+        LOCK(flags);
+        if (value) {
+                UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
+                (void)UN_IN(UNI_N_CLOCK_CNTL);
+        } else {
+                UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
+                (void)UN_IN(UNI_N_CLOCK_CNTL);
+        }
+        UNLOCK(flags);
+        mdelay(1);
+
+        return 0;
+}
+
+static long
+core99_firewire_cable_power(struct device_node *node, long param, long value)
+{
+        unsigned long flags;
+        struct macio_chip *macio;
+
+        /* Trick: we allow NULL node */
+        if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
+                return -ENODEV;
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo && macio->type != macio_pangea &&
+            macio->type != macio_intrepid)
+                return -ENODEV;
+        if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
+                return -ENODEV;
+
+        LOCK(flags);
+        if (value) {
+                MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
+                MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
+                udelay(10);
+        } else {
+                MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
+                MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
+        }
+        UNLOCK(flags);
+        mdelay(1);
+
+        return 0;
+}
+
+static long
+intrepid_aack_delay_enable(struct device_node *node, long param, long value)
+{
+        unsigned long flags;
+
+        if (uninorth_rev < 0xd2)
+                return -ENODEV;
+
+        LOCK(flags);
+        if (param)
+                UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
+        else
+                UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
+        UNLOCK(flags);
+
+        return 0;
+}
+
+
+#endif /* CONFIG_POWER4 */
+
+static long
+core99_read_gpio(struct device_node *node, long param, long value)
+{
+        struct macio_chip *macio = &macio_chips[0];
+
+        return MACIO_IN8(param);
+}
+
+
+static long
+core99_write_gpio(struct device_node *node, long param, long value)
+{
+        struct macio_chip *macio = &macio_chips[0];
+
+        MACIO_OUT8(param, (u8)(value & 0xff));
+        return 0;
+}
+
+#ifdef CONFIG_POWER4
+static long g5_gmac_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip *macio = &macio_chips[0];
+        unsigned long flags;
+
+        if (node == NULL)
+                return -ENODEV;
+
+        LOCK(flags);
+        if (value) {
+                MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
+                mb();
+                k2_skiplist[0] = NULL;
+        } else {
+                k2_skiplist[0] = node;
+                mb();
+                MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
+        }
+        
+        UNLOCK(flags);
+        mdelay(1);
+
+        return 0;
+}
+
+static long g5_fw_enable(struct device_node *node, long param, long value)
+{
+        struct macio_chip *macio = &macio_chips[0];
+        unsigned long flags;
+
+        if (node == NULL)
+                return -ENODEV;
+
+        LOCK(flags);
+        if (value) {
+                MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
+                mb();
+                k2_skiplist[1] = NULL;
+        } else {
+                k2_skiplist[1] = node;
+                mb();
+                MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
+        }
+        
+        UNLOCK(flags);
+        mdelay(1);
+
+        return 0;
+}
+
+static long g5_mpic_enable(struct device_node *node, long param, long value)
+{
+        unsigned long flags;
+
+        if (node->parent == NULL || strcmp(node->parent->name, "u3"))
+                return 0;
+
+        LOCK(flags);
+        UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
+        UNLOCK(flags);
+
+        return 0;
+}
+
+static long g5_eth_phy_reset(struct device_node *node, long param, long value)
+{
+        struct macio_chip *macio = &macio_chips[0];
+        struct device_node *phy;
+        int need_reset;
+
+        /*
+         * We must not reset the combo PHYs, only the BCM5221 found in
+         * the iMac G5.
+         */
+        phy = of_get_next_child(node, NULL);
+        if (!phy)
+                return -ENODEV;
+        need_reset = device_is_compatible(phy, "B5221");
+        of_node_put(phy);
+        if (!need_reset)
+                return 0;
+
+        /* PHY reset is GPIO 29, not in device-tree unfortunately */
+        MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
+                   KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
+        /* Thankfully, this is now always called at a time when we can
+         * schedule by sungem.
+         */
+        msleep(10);
+        MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
+
+        return 0;
+}
+
+static long g5_i2s_enable(struct device_node *node, long param, long value)
+{
+        /* Very crude implementation for now */
+        struct macio_chip *macio = &macio_chips[0];
+        unsigned long flags;
+
+        if (value == 0)
+                return 0; /* don't disable yet */
+
+        LOCK(flags);
+        MACIO_BIS(KEYLARGO_FCR3, KL3_CLK45_ENABLE | KL3_CLK49_ENABLE |
+                  KL3_I2S0_CLK18_ENABLE);
+        udelay(10);
+        MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_I2S0_CELL_ENABLE |
+                  K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE);
+        udelay(10);
+        MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_I2S0_RESET);
+        UNLOCK(flags);
+        udelay(10);
+
+        return 0;
+}
+
+
+#ifdef CONFIG_SMP
+static long g5_reset_cpu(struct device_node *node, long param, long value)
+{
+        unsigned int reset_io = 0;
+        unsigned long flags;
+        struct macio_chip *macio;
+        struct device_node *np;
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo2)
+                return -ENODEV;
+
+        np = find_path_device("/cpus");
+        if (np == NULL)
+                return -ENODEV;
+        for (np = np->child; np != NULL; np = np->sibling) {
+                u32 *num = (u32 *)get_property(np, "reg", NULL);
+                u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
+                if (num == NULL || rst == NULL)
+                        continue;
+                if (param == *num) {
+                        reset_io = *rst;
+                        break;
+                }
+        }
+        if (np == NULL || reset_io == 0)
+                return -ENODEV;
+
+        LOCK(flags);
+        MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
+        (void)MACIO_IN8(reset_io);
+        udelay(1);
+        MACIO_OUT8(reset_io, 0);
+        (void)MACIO_IN8(reset_io);
+        UNLOCK(flags);
+
+        return 0;
+}
+#endif /* CONFIG_SMP */
+
+/*
+ * This can be called from pmac_smp so isn't static
+ *
+ * This takes the second CPU off the bus on dual CPU machines
+ * running UP
+ */
+void g5_phy_disable_cpu1(void)
+{
+        UN_OUT(U3_API_PHY_CONFIG_1, 0);
+}
+#endif /* CONFIG_POWER4 */
+
+#ifndef CONFIG_POWER4
+
+static void
+keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
+{
+        u32 temp;
+
+        if (sleep_mode) {
+                mdelay(1);
+                MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
+                (void)MACIO_IN32(KEYLARGO_FCR0);
+                mdelay(1);
+        }
+
+        MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
+                                KL0_SCC_CELL_ENABLE |
+                                KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
+                                KL0_IRDA_CLK19_ENABLE);
+
+        MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
+        MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
+
+        MACIO_BIC(KEYLARGO_FCR1,
+                KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
+                KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
+                KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
+                KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
+                KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
+                KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
+                KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
+                KL1_UIDE_ENABLE);
+
+        MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
+        MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
+
+        temp = MACIO_IN32(KEYLARGO_FCR3);
+        if (macio->rev >= 2) {
+                temp |= KL3_SHUTDOWN_PLL2X;
+                if (sleep_mode)
+                        temp |= KL3_SHUTDOWN_PLL_TOTAL;
+        }
+
+        temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
+                KL3_SHUTDOWN_PLLKW35;
+        if (sleep_mode)
+                temp |= KL3_SHUTDOWN_PLLKW12;
+        temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
+                | KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
+        if (sleep_mode)
+                temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
+        MACIO_OUT32(KEYLARGO_FCR3, temp);
+
+        /* Flush posted writes & wait a bit */
+        (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
+}
+
+static void
+pangea_shutdown(struct macio_chip *macio, int sleep_mode)
+{
+        u32 temp;
+
+        MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
+                                KL0_SCC_CELL_ENABLE |
+                                KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
+
+        MACIO_BIC(KEYLARGO_FCR1,
+                KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
+                KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
+                KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
+                KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
+                KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
+                KL1_UIDE_ENABLE);
+        if (pmac_mb.board_flags & PMAC_MB_MOBILE)
+                MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
+
+        MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
+
+        temp = MACIO_IN32(KEYLARGO_FCR3);
+        temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
+                KL3_SHUTDOWN_PLLKW35;
+        temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
+                | KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
+        if (sleep_mode)
+                temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
+        MACIO_OUT32(KEYLARGO_FCR3, temp);
+
+        /* Flush posted writes & wait a bit */
+        (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
+}
+
+static void
+intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
+{
+        u32 temp;
+
+        MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
+                  KL0_SCC_CELL_ENABLE);
+
+        MACIO_BIC(KEYLARGO_FCR1,
+                  /*KL1_USB2_CELL_ENABLE |*/
+                KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
+                KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
+                KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE);
+        if (pmac_mb.board_flags & PMAC_MB_MOBILE)
+                MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
+
+        temp = MACIO_IN32(KEYLARGO_FCR3);
+        temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
+                  KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
+        if (sleep_mode)
+                temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
+        MACIO_OUT32(KEYLARGO_FCR3, temp);
+
+        /* Flush posted writes & wait a bit */
+        (void)MACIO_IN32(KEYLARGO_FCR0);
+        mdelay(10);
+}
+
+
+void pmac_tweak_clock_spreading(int enable)
+{
+        struct macio_chip *macio = &macio_chips[0];
+
+        /* Hack for doing clock spreading on some machines PowerBooks and
+         * iBooks. This implements the "platform-do-clockspreading" OF
+         * property as decoded manually on various models. For safety, we also
+         * check the product ID in the device-tree in cases we'll whack the i2c
+         * chip to make reasonably sure we won't set wrong values in there
+         *
+         * Of course, ultimately, we have to implement a real parser for
+         * the platform-do-* stuff...
+         */
+
+        if (macio->type == macio_intrepid) {
+                if (enable)
+                        UN_OUT(UNI_N_CLOCK_SPREADING, 2);
+                else
+                        UN_OUT(UNI_N_CLOCK_SPREADING, 0);
+                mdelay(40);
+        }
+
+        while (machine_is_compatible("PowerBook5,2") ||
+               machine_is_compatible("PowerBook5,3") ||
+               machine_is_compatible("PowerBook6,2") ||
+               machine_is_compatible("PowerBook6,3")) {
+                struct device_node *ui2c = of_find_node_by_type(NULL, "i2c");
+                struct device_node *dt = of_find_node_by_name(NULL, "device-tree");
+                u8 buffer[9];
+                u32 *productID;
+                int i, rc, changed = 0;
+
+                if (dt == NULL)
+                        break;
+                productID = (u32 *)get_property(dt, "pid#", NULL);
+                if (productID == NULL)
+                        break;
+                while(ui2c) {
+                        struct device_node *p = of_get_parent(ui2c);
+                        if (p && !strcmp(p->name, "uni-n"))
+                                break;
+                        ui2c = of_find_node_by_type(ui2c, "i2c");
+                }
+                if (ui2c == NULL)
+                        break;
+                DBG("Trying to bump clock speed for PID: %08x...\n", *productID);
+                rc = pmac_low_i2c_open(ui2c, 1);
+                if (rc != 0)
+                        break;
+                pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
+                rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
+                DBG("read result: %d,", rc);
+                if (rc != 0) {
+                        pmac_low_i2c_close(ui2c);
+                        break;
+                }
+                for (i=0; i<9; i++)
+                        DBG(" %02x", buffer[i]);
+                DBG("\n");
+
+                switch(*productID) {
+                case 0x1182:    /* AlBook 12" rev 2 */
+                case 0x1183:    /* iBook G4 12" */
+                        buffer[0] = (buffer[0] & 0x8f) | 0x70;
+                        buffer[2] = (buffer[2] & 0x7f) | 0x00;
+                        buffer[5] = (buffer[5] & 0x80) | 0x31;
+                        buffer[6] = (buffer[6] & 0x40) | 0xb0;
+                        buffer[7] = (buffer[7] & 0x00) | (enable ? 0xc0 : 0xba);
+                        buffer[8] = (buffer[8] & 0x00) | 0x30;
+                        changed = 1;
+                        break;
+                case 0x3142:    /* AlBook 15" (ATI M10) */
+                case 0x3143:    /* AlBook 17" (ATI M10) */
+                        buffer[0] = (buffer[0] & 0xaf) | 0x50;
+                        buffer[2] = (buffer[2] & 0x7f) | 0x00;
+                        buffer[5] = (buffer[5] & 0x80) | 0x31;
+                        buffer[6] = (buffer[6] & 0x40) | 0xb0;
+                        buffer[7] = (buffer[7] & 0x00) | (enable ? 0xd0 : 0xc0);
+                        buffer[8] = (buffer[8] & 0x00) | 0x30;
+                        changed = 1;
+                        break;
+                default:
+                        DBG("i2c-hwclock: Machine model not handled\n");
+                        break;
+                }
+                if (!changed) {
+                        pmac_low_i2c_close(ui2c);
+                        break;
+                }
+                pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_stdsub);
+                rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_write, 0x80, buffer, 9);
+                DBG("write result: %d,", rc);
+                pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
+                rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
+                DBG("read result: %d,", rc);
+                if (rc != 0) {
+                        pmac_low_i2c_close(ui2c);
+                        break;
+                }
+                for (i=0; i<9; i++)
+                        DBG(" %02x", buffer[i]);
+                pmac_low_i2c_close(ui2c);
+                break;
+        }
+}
+
+
+static int
+core99_sleep(void)
+{
+        struct macio_chip *macio;
+        int i;
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo && macio->type != macio_pangea &&
+            macio->type != macio_intrepid)
+                return -ENODEV;
+
+        /* We power off the wireless slot in case it was not done
+         * by the driver. We don't power it on automatically however
+         */
+        if (macio->flags & MACIO_FLAG_AIRPORT_ON)
+                core99_airport_enable(macio->of_node, 0, 0);
+
+        /* We power off the FW cable. Should be done by the driver... */
+        if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
+                core99_firewire_enable(NULL, 0, 0);
+                core99_firewire_cable_power(NULL, 0, 0);
+        }
+
+        /* We make sure int. modem is off (in case driver lost it) */
+        if (macio->type == macio_keylargo)
+                core99_modem_enable(macio->of_node, 0, 0);
+        else
+                pangea_modem_enable(macio->of_node, 0, 0);
+
+        /* We make sure the sound is off as well */
+        core99_sound_chip_enable(macio->of_node, 0, 0);
+
+        /*
+         * Save various bits of KeyLargo
+         */
+
+        /* Save the state of the various GPIOs */
+        save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
+        save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
+        for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
+                save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
+        for (i=0; i<KEYLARGO_GPIO_CNT; i++)
+                save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
+
+        /* Save the FCRs */
+        if (macio->type == macio_keylargo)
+                save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
+        save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
+        save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
+        save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
+        save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
+        save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
+        if (macio->type == macio_pangea || macio->type == macio_intrepid)
+                save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
+
+        /* Save state & config of DBDMA channels */
+        dbdma_save(macio, save_dbdma);
+
+        /*
+         * Turn off as much as we can
+         */
+        if (macio->type == macio_pangea)
+                pangea_shutdown(macio, 1);
+        else if (macio->type == macio_intrepid)
+                intrepid_shutdown(macio, 1);
+        else if (macio->type == macio_keylargo)
+                keylargo_shutdown(macio, 1);
+
+        /*
+         * Put the host bridge to sleep
+         */
+
+        save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
+        /* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
+         * enabled !
+         */
+        UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
+               ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
+        udelay(100);
+        UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
+        UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
+        mdelay(10);
+
+        /*
+         * FIXME: A bit of black magic with OpenPIC (don't ask me why)
+         */
+        if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
+                MACIO_BIS(0x506e0, 0x00400000);
+                MACIO_BIS(0x506e0, 0x80000000);
+        }
+        return 0;
+}
+
+static int
+core99_wake_up(void)
+{
+        struct macio_chip *macio;
+        int i;
+
+        macio = &macio_chips[0];
+        if (macio->type != macio_keylargo && macio->type != macio_pangea &&
+            macio->type != macio_intrepid)
+                return -ENODEV;
+
+        /*
+         * Wakeup the host bridge
+         */
+        UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
+        udelay(10);
+        UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
+        udelay(10);
+
+        /*
+         * Restore KeyLargo
+         */
+
+        if (macio->type == macio_keylargo) {
+                MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
+                (void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
+        }
+        MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
+        (void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
+        MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
+        (void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
+        MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
+        (void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
+        MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
+        (void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
+        MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
+        (void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
+        if (macio->type == macio_pangea || macio->type == macio_intrepid) {
+                MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
+                (void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
+        }
+
+        dbdma_restore(macio, save_dbdma);
+
+        MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
+        MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
+        for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
+                MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
+        for (i=0; i<KEYLARGO_GPIO_CNT; i++)
+                MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
+
+        /* FIXME more black magic with OpenPIC ... */
+        if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
+                MACIO_BIC(0x506e0, 0x00400000);
+                MACIO_BIC(0x506e0, 0x80000000);
+        }
+
+        UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
+        udelay(100);
+
+        return 0;
+}
+
+static long
+core99_sleep_state(struct device_node *node, long param, long value)
+{
+        /* Param == 1 means to enter the "fake sleep" mode that is
+         * used for CPU speed switch
+         */
+        if (param == 1) {
+                if (value == 1) {
+                        UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
+                        UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
+                } else {
+                        UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
+                        udelay(10);
+                        UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
+                        udelay(10);
+                }
+                return 0;
+        }
+        if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
+                return -EPERM;
+
+        if (value == 1)
+                return core99_sleep();
+        else if (value == 0)
+                return core99_wake_up();
+        return 0;
+}
+
+#endif /* CONFIG_POWER4 */
+
+static long
+generic_dev_can_wake(struct device_node *node, long param, long value)
+{
+        /* Todo: eventually check we are really dealing with on-board
+         * video device ...
+         */
+
+        if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
+                pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
+        return 0;
+}
+
+static long generic_get_mb_info(struct device_node *node, long param, long value)
+{
+        switch(param) {
+                case PMAC_MB_INFO_MODEL:
+                        return pmac_mb.model_id;
+                case PMAC_MB_INFO_FLAGS:
+                        return pmac_mb.board_flags;
+                case PMAC_MB_INFO_NAME:
+                        /* hack hack hack... but should work */
+                        *((const char **)value) = pmac_mb.model_name;
+                        return 0;
+        }
+        return -EINVAL;
+}
+
+
+/*
+ * Table definitions
+ */
+
+/* Used on any machine
+ */
+static struct feature_table_entry any_features[] = {
+        { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
+        { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
+        { 0, NULL }
+};
+
+#ifndef CONFIG_POWER4
+
+/* OHare based motherboards. Currently, we only use these on the
+ * 2400,3400 and 3500 series powerbooks. Some older desktops seem
+ * to have issues with turning on/off those asic cells
+ */
+static struct feature_table_entry ohare_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
+        { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
+        { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
+        { PMAC_FTR_IDE_ENABLE,          ohare_ide_enable},
+        { PMAC_FTR_IDE_RESET,           ohare_ide_reset},
+        { PMAC_FTR_SLEEP_STATE,         ohare_sleep_state },
+        { 0, NULL }
+};
+
+/* Heathrow desktop machines (Beige G3).
+ * Separated as some features couldn't be properly tested
+ * and the serial port control bits appear to confuse it.
+ */
+static struct feature_table_entry heathrow_desktop_features[] = {
+        { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
+        { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
+        { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
+        { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
+        { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
+        { 0, NULL }
+};
+
+/* Heathrow based laptop, that is the Wallstreet and mainstreet
+ * powerbooks.
+ */
+static struct feature_table_entry heathrow_laptop_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
+        { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
+        { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
+        { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
+        { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
+        { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
+        { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
+        { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
+        { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
+        { 0, NULL }
+};
+
+/* Paddington based machines
+ * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
+ */
+static struct feature_table_entry paddington_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
+        { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
+        { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
+        { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
+        { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
+        { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
+        { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
+        { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
+        { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
+        { 0, NULL }
+};
+
+/* Core99 & MacRISC 2 machines (all machines released since the
+ * iBook (included), that is all AGP machines, except pangea
+ * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
+ * used on iBook2 & iMac "flow power".
+ */
+static struct feature_table_entry core99_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
+        { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
+        { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
+        { PMAC_FTR_IDE_RESET,           core99_ide_reset },
+        { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
+        { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
+        { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
+        { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
+        { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
+        { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
+        { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
+        { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
+#ifdef CONFIG_SMP
+        { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
+#endif /* CONFIG_SMP */
+        { PMAC_FTR_READ_GPIO,           core99_read_gpio },
+        { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
+        { 0, NULL }
+};
+
+/* RackMac
+ */
+static struct feature_table_entry rackmac_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
+        { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
+        { PMAC_FTR_IDE_RESET,           core99_ide_reset },
+        { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
+        { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
+        { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
+        { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
+        { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
+        { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
+#ifdef CONFIG_SMP
+        { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
+#endif /* CONFIG_SMP */
+        { PMAC_FTR_READ_GPIO,           core99_read_gpio },
+        { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
+        { 0, NULL }
+};
+
+/* Pangea features
+ */
+static struct feature_table_entry pangea_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
+        { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
+        { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
+        { PMAC_FTR_IDE_RESET,           core99_ide_reset },
+        { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
+        { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
+        { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
+        { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
+        { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
+        { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
+        { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
+        { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
+        { PMAC_FTR_READ_GPIO,           core99_read_gpio },
+        { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
+        { 0, NULL }
+};
+
+/* Intrepid features
+ */
+static struct feature_table_entry intrepid_features[] = {
+        { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
+        { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
+        { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
+        { PMAC_FTR_IDE_RESET,           core99_ide_reset },
+        { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
+        { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
+        { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
+        { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
+        { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
+        { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
+        { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
+        { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
+        { PMAC_FTR_READ_GPIO,           core99_read_gpio },
+        { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
+        { PMAC_FTR_AACK_DELAY_ENABLE,   intrepid_aack_delay_enable },
+        { 0, NULL }
+};
+
+#else /* CONFIG_POWER4 */
+
+/* G5 features
+ */
+static struct feature_table_entry g5_features[] = {
+        { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
+        { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
+        { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
+        { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
+        { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
+#ifdef CONFIG_SMP
+        { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
+#endif /* CONFIG_SMP */
+        { PMAC_FTR_READ_GPIO,           core99_read_gpio },
+        { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
+        { 0, NULL }
+};
+
+#endif /* CONFIG_POWER4 */
+
+static struct pmac_mb_def pmac_mb_defs[] = {
+#ifndef CONFIG_POWER4
+        /*
+         * Desktops
+         */
+
+        {       "AAPL,8500",                    "PowerMac 8500/8600",
+                PMAC_TYPE_PSURGE,               NULL,
+                0
+        },
+        {       "AAPL,9500",                    "PowerMac 9500/9600",
+                PMAC_TYPE_PSURGE,               NULL,
+                0
+        },
+        {       "AAPL,7200",                    "PowerMac 7200",
+                PMAC_TYPE_PSURGE,               NULL,
+                0
+        },
+        {       "AAPL,7300",                    "PowerMac 7200/7300",
+                PMAC_TYPE_PSURGE,               NULL,
+                0
+        },
+        {       "AAPL,7500",                    "PowerMac 7500",
+                PMAC_TYPE_PSURGE,               NULL,
+                0
+        },
+        {       "AAPL,ShinerESB",               "Apple Network Server",
+                PMAC_TYPE_ANS,                  NULL,
+                0
+        },
+        {       "AAPL,e407",                    "Alchemy",
+                PMAC_TYPE_ALCHEMY,              NULL,
+                0
+        },
+        {       "AAPL,e411",                    "Gazelle",
+                PMAC_TYPE_GAZELLE,              NULL,
+                0
+        },
+        {       "AAPL,Gossamer",                "PowerMac G3 (Gossamer)",
+                PMAC_TYPE_GOSSAMER,             heathrow_desktop_features,
+                0
+        },
+        {       "AAPL,PowerMac G3",             "PowerMac G3 (Silk)",
+                PMAC_TYPE_SILK,                 heathrow_desktop_features,
+                0
+        },
+        {       "PowerMac1,1",                  "Blue&White G3",
+                PMAC_TYPE_YOSEMITE,             paddington_features,
+                0
+        },
+        {       "PowerMac1,2",                  "PowerMac G4 PCI Graphics",
+                PMAC_TYPE_YIKES,                paddington_features,
+                0
+        },
+        {       "PowerMac2,1",                  "iMac FireWire",
+                PMAC_TYPE_FW_IMAC,              core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
+        },
+        {       "PowerMac2,2",                  "iMac FireWire",
+                PMAC_TYPE_FW_IMAC,              core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
+        },
+        {       "PowerMac3,1",                  "PowerMac G4 AGP Graphics",
+                PMAC_TYPE_SAWTOOTH,             core99_features,
+                PMAC_MB_OLD_CORE99
+        },
+        {       "PowerMac3,2",                  "PowerMac G4 AGP Graphics",
+                PMAC_TYPE_SAWTOOTH,             core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
+        },
+        {       "PowerMac3,3",                  "PowerMac G4 AGP Graphics",
+                PMAC_TYPE_SAWTOOTH,             core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
+        },
+        {       "PowerMac3,4",                  "PowerMac G4 Silver",
+                PMAC_TYPE_QUICKSILVER,          core99_features,
+                PMAC_MB_MAY_SLEEP
+        },
+        {       "PowerMac3,5",                  "PowerMac G4 Silver",
+                PMAC_TYPE_QUICKSILVER,          core99_features,
+                PMAC_MB_MAY_SLEEP
+        },
+        {       "PowerMac3,6",                  "PowerMac G4 Windtunnel",
+                PMAC_TYPE_WINDTUNNEL,           core99_features,
+                PMAC_MB_MAY_SLEEP,
+        },
+        {       "PowerMac4,1",                  "iMac \"Flower Power\"",
+                PMAC_TYPE_PANGEA_IMAC,          pangea_features,
+                PMAC_MB_MAY_SLEEP
+        },
+        {       "PowerMac4,2",                  "Flat panel iMac",
+                PMAC_TYPE_FLAT_PANEL_IMAC,      pangea_features,
+                PMAC_MB_CAN_SLEEP
+        },
+        {       "PowerMac4,4",                  "eMac",
+                PMAC_TYPE_EMAC,                 core99_features,
+                PMAC_MB_MAY_SLEEP
+        },
+        {       "PowerMac5,1",                  "PowerMac G4 Cube",
+                PMAC_TYPE_CUBE,                 core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
+        },
+        {       "PowerMac6,1",                  "Flat panel iMac",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP,
+        },
+        {       "PowerMac6,3",                  "Flat panel iMac",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP,
+        },
+        {       "PowerMac6,4",                  "eMac",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP,
+        },
+        {       "PowerMac10,1",                 "Mac mini",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER,
+        },
+        {       "iMac,1",                       "iMac (first generation)",
+                PMAC_TYPE_ORIG_IMAC,            paddington_features,
+                0
+        },
+
+        /*
+         * Xserve's
+         */
+
+        {       "RackMac1,1",                   "XServe",
+                PMAC_TYPE_RACKMAC,              rackmac_features,
+                0,
+        },
+        {       "RackMac1,2",                   "XServe rev. 2",
+                PMAC_TYPE_RACKMAC,              rackmac_features,
+                0,
+        },
+
+        /*
+         * Laptops
+         */
+
+        {       "AAPL,3400/2400",               "PowerBook 3400",
+                PMAC_TYPE_HOOPER,               ohare_features,
+                PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
+        },
+        {       "AAPL,3500",                    "PowerBook 3500",
+                PMAC_TYPE_KANGA,                ohare_features,
+                PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
+        },
+        {       "AAPL,PowerBook1998",           "PowerBook Wallstreet",
+                PMAC_TYPE_WALLSTREET,           heathrow_laptop_features,
+                PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
+        },
+        {       "PowerBook1,1",                 "PowerBook 101 (Lombard)",
+                PMAC_TYPE_101_PBOOK,            paddington_features,
+                PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
+        },
+        {       "PowerBook2,1",                 "iBook (first generation)",
+                PMAC_TYPE_ORIG_IBOOK,           core99_features,
+                PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
+        },
+        {       "PowerBook2,2",                 "iBook FireWire",
+                PMAC_TYPE_FW_IBOOK,             core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
+                PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
+        },
+        {       "PowerBook3,1",                 "PowerBook Pismo",
+                PMAC_TYPE_PISMO,                core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
+                PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
+        },
+        {       "PowerBook3,2",                 "PowerBook Titanium",
+                PMAC_TYPE_TITANIUM,             core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook3,3",                 "PowerBook Titanium II",
+                PMAC_TYPE_TITANIUM2,            core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook3,4",                 "PowerBook Titanium III",
+                PMAC_TYPE_TITANIUM3,            core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook3,5",                 "PowerBook Titanium IV",
+                PMAC_TYPE_TITANIUM4,            core99_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook4,1",                 "iBook 2",
+                PMAC_TYPE_IBOOK2,               pangea_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook4,2",                 "iBook 2",
+                PMAC_TYPE_IBOOK2,               pangea_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook4,3",                 "iBook 2 rev. 2",
+                PMAC_TYPE_IBOOK2,               pangea_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
+        },
+        {       "PowerBook5,1",                 "PowerBook G4 17\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,2",                 "PowerBook G4 15\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,3",                 "PowerBook G4 17\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,4",                 "PowerBook G4 15\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,5",                 "PowerBook G4 17\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,6",                 "PowerBook G4 15\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,7",                 "PowerBook G4 17\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,1",                 "PowerBook G4 12\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,2",                 "PowerBook G4",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,3",                 "iBook G4",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,4",                 "PowerBook G4 12\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,5",                 "iBook G4",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,7",                 "iBook G4",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook6,8",                 "PowerBook G4 12\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+#else /* CONFIG_POWER4 */
+        {       "PowerMac7,2",                  "PowerMac G5",
+                PMAC_TYPE_POWERMAC_G5,          g5_features,
+                0,
+        },
+#ifdef CONFIG_PPC64
+        {       "PowerMac7,3",                  "PowerMac G5",
+                PMAC_TYPE_POWERMAC_G5,          g5_features,
+                0,
+        },
+        {       "PowerMac8,1",                  "iMac G5",
+                PMAC_TYPE_IMAC_G5,              g5_features,
+                0,
+        },
+        {       "PowerMac9,1",                  "PowerMac G5",
+                PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
+                0,
+        },
+        {       "RackMac3,1",                   "XServe G5",
+                PMAC_TYPE_XSERVE_G5,            g5_features,
+                0,
+        },
+#endif /* CONFIG_PPC64 */
+#endif /* CONFIG_POWER4 */
+};
+
+/*
+ * The toplevel feature_call callback
+ */
+long pmac_do_feature_call(unsigned int selector, ...)
+{
+        struct device_node *node;
+        long param, value;
+        int i;
+        feature_call func = NULL;
+        va_list args;
+
+        if (pmac_mb.features)
+                for (i=0; pmac_mb.features[i].function; i++)
+                        if (pmac_mb.features[i].selector == selector) {
+                                func = pmac_mb.features[i].function;
+                                break;
+                        }
+        if (!func)
+                for (i=0; any_features[i].function; i++)
+                        if (any_features[i].selector == selector) {
+                                func = any_features[i].function;
+                                break;
+                        }
+        if (!func)
+                return -ENODEV;
+
+        va_start(args, selector);
+        node = (struct device_node*)va_arg(args, void*);
+        param = va_arg(args, long);
+        value = va_arg(args, long);
+        va_end(args);
+
+        return func(node, param, value);
+}
+
+static int __init probe_motherboard(void)
+{
+        int i;
+        struct macio_chip *macio = &macio_chips[0];
+        const char *model = NULL;
+        struct device_node *dt;
+
+        /* Lookup known motherboard type in device-tree. First try an
+         * exact match on the "model" property, then try a "compatible"
+         * match is none is found.
+         */
+        dt = find_devices("device-tree");
+        if (dt != NULL)
+                model = (const char *) get_property(dt, "model", NULL);
+        for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
+            if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
+                pmac_mb = pmac_mb_defs[i];
+                goto found;
+            }
+        }
+        for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
+            if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
+                pmac_mb = pmac_mb_defs[i];
+                goto found;
+            }
+        }
+
+        /* Fallback to selection depending on mac-io chip type */
+        switch(macio->type) {
+#ifndef CONFIG_POWER4
+            case macio_grand_central:
+                pmac_mb.model_id = PMAC_TYPE_PSURGE;
+                pmac_mb.model_name = "Unknown PowerSurge";
+                break;
+            case macio_ohare:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
+                pmac_mb.model_name = "Unknown OHare-based";
+                break;
+            case macio_heathrow:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
+                pmac_mb.model_name = "Unknown Heathrow-based";
+                pmac_mb.features = heathrow_desktop_features;
+                break;
+            case macio_paddington:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
+                pmac_mb.model_name = "Unknown Paddington-based";
+                pmac_mb.features = paddington_features;
+                break;
+            case macio_keylargo:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
+                pmac_mb.model_name = "Unknown Keylargo-based";
+                pmac_mb.features = core99_features;
+                break;
+            case macio_pangea:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
+                pmac_mb.model_name = "Unknown Pangea-based";
+                pmac_mb.features = pangea_features;
+                break;
+            case macio_intrepid:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
+                pmac_mb.model_name = "Unknown Intrepid-based";
+                pmac_mb.features = intrepid_features;
+                break;
+#else /* CONFIG_POWER4 */
+        case macio_keylargo2:
+                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
+                pmac_mb.model_name = "Unknown K2-based";
+                pmac_mb.features = g5_features;
+                break;
+#endif /* CONFIG_POWER4 */
+        default:
+                return -ENODEV;
+        }
+found:
+#ifndef CONFIG_POWER4
+        /* Fixup Hooper vs. Comet */
+        if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
+                u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
+                if (!mach_id_ptr)
+                        return -ENODEV;
+                /* Here, I used to disable the media-bay on comet. It
+                 * appears this is wrong, the floppy connector is actually
+                 * a kind of media-bay and works with the current driver.
+                 */
+                if (__raw_readl(mach_id_ptr) & 0x20000000UL)
+                        pmac_mb.model_id = PMAC_TYPE_COMET;
+                iounmap(mach_id_ptr);
+        }
+#endif /* CONFIG_POWER4 */
+
+#ifdef CONFIG_6xx
+        /* Set default value of powersave_nap on machines that support it.
+         * It appears that uninorth rev 3 has a problem with it, we don't
+         * enable it on those. In theory, the flush-on-lock property is
+         * supposed to be set when not supported, but I'm not very confident
+         * that all Apple OF revs did it properly, I do it the paranoid way.
+         */
+        while (uninorth_base && uninorth_rev > 3) {
+                struct device_node *np = find_path_device("/cpus");
+                if (!np || !np->child) {
+                        printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
+                        break;
+                }
+                np = np->child;
+                /* Nap mode not supported on SMP */
+                if (np->sibling)
+                        break;
+                /* Nap mode not supported if flush-on-lock property is present */
+                if (get_property(np, "flush-on-lock", NULL))
+                        break;
+                powersave_nap = 1;
+                printk(KERN_INFO "Processor NAP mode on idle enabled.\n");
+                break;
+        }
+
+        /* On CPUs that support it (750FX), lowspeed by default during
+         * NAP mode
+         */
+        powersave_lowspeed = 1;
+#endif /* CONFIG_6xx */
+#ifdef CONFIG_POWER4
+        powersave_nap = 1;
+#endif
+        /* Check for "mobile" machine */
+        if (model && (strncmp(model, "PowerBook", 9) == 0
+                   || strncmp(model, "iBook", 5) == 0))
+                pmac_mb.board_flags |= PMAC_MB_MOBILE;
+
+
+        printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
+        return 0;
+}
+
+/* Initialize the Core99 UniNorth host bridge and memory controller
+ */
+static void __init probe_uninorth(void)
+{
+        unsigned long actrl;
+
+        /* Locate core99 Uni-N */
+        uninorth_node = of_find_node_by_name(NULL, "uni-n");
+        /* Locate G5 u3 */
+        if (uninorth_node == NULL) {
+                uninorth_node = of_find_node_by_name(NULL, "u3");
+                uninorth_u3 = 1;
+        }
+        if (uninorth_node && uninorth_node->n_addrs > 0) {
+                unsigned long address = uninorth_node->addrs[0].address;
+                uninorth_base = ioremap(address, 0x40000);
+                uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
+                if (uninorth_u3)
+                        u3_ht = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
+        } else
+                uninorth_node = NULL;
+
+        if (!uninorth_node)
+                return;
+
+        printk(KERN_INFO "Found %s memory controller & host bridge, revision: %d\n",
+               uninorth_u3 ? "U3" : "UniNorth", uninorth_rev);
+        printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
+
+        /* Set the arbitrer QAck delay according to what Apple does
+         */
+        if (uninorth_rev < 0x11) {
+                actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
+                actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
+                        UNI_N_ARB_CTRL_QACK_DELAY) << UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
+                UN_OUT(UNI_N_ARB_CTRL, actrl);
+        }
+
+        /* Some more magic as done by them in recent MacOS X on UniNorth
+         * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
+         * memory timeout
+         */
+        if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) || uninorth_rev == 0xc0)
+                UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
+}
+
+static void __init probe_one_macio(const char *name, const char *compat, int type)
+{
+        struct device_node*     node;
+        int                     i;
+        volatile u32 __iomem *  base;
+        u32*                    revp;
+
+        node = find_devices(name);
+        if (!node || !node->n_addrs)
+                return;
+        if (compat)
+                do {
+                        if (device_is_compatible(node, compat))
+                                break;
+                        node = node->next;
+                } while (node);
+        if (!node)
+                return;
+        for(i=0; i<MAX_MACIO_CHIPS; i++) {
+                if (!macio_chips[i].of_node)
+                        break;
+                if (macio_chips[i].of_node == node)
+                        return;
+        }
+        if (i >= MAX_MACIO_CHIPS) {
+                printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
+                printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
+                return;
+        }
+        base = ioremap(node->addrs[0].address, node->addrs[0].size);
+        if (!base) {
+                printk(KERN_ERR "pmac_feature: Can't map mac-io chip !\n");
+                return;
+        }
+        if (type == macio_keylargo) {
+                u32 *did = (u32 *)get_property(node, "device-id", NULL);
+                if (*did == 0x00000025)
+                        type = macio_pangea;
+                if (*did == 0x0000003e)
+                        type = macio_intrepid;
+        }
+        macio_chips[i].of_node  = node;
+        macio_chips[i].type     = type;
+        macio_chips[i].base     = base;
+        macio_chips[i].flags    = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
+        macio_chips[i].name     = macio_names[type];
+        revp = (u32 *)get_property(node, "revision-id", NULL);
+        if (revp)
+                macio_chips[i].rev = *revp;
+        printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
+                macio_names[type], macio_chips[i].rev, macio_chips[i].base);
+}
+
+static int __init
+probe_macios(void)
+{
+        /* Warning, ordering is important */
+        probe_one_macio("gc", NULL, macio_grand_central);
+        probe_one_macio("ohare", NULL, macio_ohare);
+        probe_one_macio("pci106b,7", NULL, macio_ohareII);
+        probe_one_macio("mac-io", "keylargo", macio_keylargo);
+        probe_one_macio("mac-io", "paddington", macio_paddington);
+        probe_one_macio("mac-io", "gatwick", macio_gatwick);
+        probe_one_macio("mac-io", "heathrow", macio_heathrow);
+        probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
+
+        /* Make sure the "main" macio chip appear first */
+        if (macio_chips[0].type == macio_gatwick
+            && macio_chips[1].type == macio_heathrow) {
+                struct macio_chip temp = macio_chips[0];
+                macio_chips[0] = macio_chips[1];
+                macio_chips[1] = temp;
+        }
+        if (macio_chips[0].type == macio_ohareII
+            && macio_chips[1].type == macio_ohare) {
+                struct macio_chip temp = macio_chips[0];
+                macio_chips[0] = macio_chips[1];
+                macio_chips[1] = temp;
+        }
+        macio_chips[0].lbus.index = 0;
+        macio_chips[1].lbus.index = 1;
+
+        return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
+}
+
+static void __init
+initial_serial_shutdown(struct device_node *np)
+{
+        int len;
+        struct slot_names_prop {
+                int     count;
+                char    name[1];
+        } *slots;
+        char *conn;
+        int port_type = PMAC_SCC_ASYNC;
+        int modem = 0;
+
+        slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
+        conn = get_property(np, "AAPL,connector", &len);
+        if (conn && (strcmp(conn, "infrared") == 0))
+                port_type = PMAC_SCC_IRDA;
+        else if (device_is_compatible(np, "cobalt"))
+                modem = 1;
+        else if (slots && slots->count > 0) {
+                if (strcmp(slots->name, "IrDA") == 0)
+                        port_type = PMAC_SCC_IRDA;
+                else if (strcmp(slots->name, "Modem") == 0)
+                        modem = 1;
+        }
+        if (modem)
+                pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
+        pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
+}
+
+static void __init
+set_initial_features(void)
+{
+        struct device_node *np;
+
+        /* That hack appears to be necessary for some StarMax motherboards
+         * but I'm not too sure it was audited for side-effects on other
+         * ohare based machines...
+         * Since I still have difficulties figuring the right way to
+         * differenciate them all and since that hack was there for a long
+         * time, I'll keep it around
+         */
+        if (macio_chips[0].type == macio_ohare && !find_devices("via-pmu")) {
+                struct macio_chip *macio = &macio_chips[0];
+                MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
+        } else if (macio_chips[0].type == macio_ohare) {
+                struct macio_chip *macio = &macio_chips[0];
+                MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
+        } else if (macio_chips[1].type == macio_ohare) {
+                struct macio_chip *macio = &macio_chips[1];
+                MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
+        }
+
+#ifdef CONFIG_POWER4
+        if (macio_chips[0].type == macio_keylargo2) {
+#ifndef CONFIG_SMP
+                /* On SMP machines running UP, we have the second CPU eating
+                 * bus cycles. We need to take it off the bus. This is done
+                 * from pmac_smp for SMP kernels running on one CPU
+                 */
+                np = of_find_node_by_type(NULL, "cpu");
+                if (np != NULL)
+                        np = of_find_node_by_type(np, "cpu");
+                if (np != NULL) {
+                        g5_phy_disable_cpu1();
+                        of_node_put(np);
+                }
+#endif /* CONFIG_SMP */
+                /* Enable GMAC for now for PCI probing. It will be disabled
+                 * later on after PCI probe
+                 */
+                np = of_find_node_by_name(NULL, "ethernet");
+                while(np) {
+                        if (device_is_compatible(np, "K2-GMAC"))
+                                g5_gmac_enable(np, 0, 1);
+                        np = of_find_node_by_name(np, "ethernet");
+                }
+
+                /* Enable FW before PCI probe. Will be disabled later on
+                 * Note: We should have a batter way to check that we are
+                 * dealing with uninorth internal cell and not a PCI cell
+                 * on the external PCI. The code below works though.
+                 */
+                np = of_find_node_by_name(NULL, "firewire");
+                while(np) {
+                        if (device_is_compatible(np, "pci106b,5811")) {
+                                macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
+                                g5_fw_enable(np, 0, 1);
+                        }
+                        np = of_find_node_by_name(np, "firewire");
+                }
+        }
+#else /* CONFIG_POWER4 */
+
+        if (macio_chips[0].type == macio_keylargo ||
+            macio_chips[0].type == macio_pangea ||
+            macio_chips[0].type == macio_intrepid) {
+                /* Enable GMAC for now for PCI probing. It will be disabled
+                 * later on after PCI probe
+                 */
+                np = of_find_node_by_name(NULL, "ethernet");
+                while(np) {
+                        if (np->parent
+                            && device_is_compatible(np->parent, "uni-north")
+                            && device_is_compatible(np, "gmac"))
+                                core99_gmac_enable(np, 0, 1);
+                        np = of_find_node_by_name(np, "ethernet");
+                }
+
+                /* Enable FW before PCI probe. Will be disabled later on
+                 * Note: We should have a batter way to check that we are
+                 * dealing with uninorth internal cell and not a PCI cell
+                 * on the external PCI. The code below works though.
+                 */
+                np = of_find_node_by_name(NULL, "firewire");
+                while(np) {
+                        if (np->parent
+                            && device_is_compatible(np->parent, "uni-north")
+                            && (device_is_compatible(np, "pci106b,18") ||
+                                device_is_compatible(np, "pci106b,30") ||
+                                device_is_compatible(np, "pci11c1,5811"))) {
+                                macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
+                                core99_firewire_enable(np, 0, 1);
+                        }
+                        np = of_find_node_by_name(np, "firewire");
+                }
+
+                /* Enable ATA-100 before PCI probe. */
+                np = of_find_node_by_name(NULL, "ata-6");
+                while(np) {
+                        if (np->parent
+                            && device_is_compatible(np->parent, "uni-north")
+                            && device_is_compatible(np, "kauai-ata")) {
+                                core99_ata100_enable(np, 1);
+                        }
+                        np = of_find_node_by_name(np, "ata-6");
+                }
+
+                /* Switch airport off */
+                np = find_devices("radio");
+                while(np) {
+                        if (np && np->parent == macio_chips[0].of_node) {
+                                macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
+                                core99_airport_enable(np, 0, 0);
+                        }
+                        np = np->next;
+                }
+        }
+
+        /* On all machines that support sound PM, switch sound off */
+        if (macio_chips[0].of_node)
+                pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
+                        macio_chips[0].of_node, 0, 0);
+
+        /* While on some desktop G3s, we turn it back on */
+        if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
+                && (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
+                    pmac_mb.model_id == PMAC_TYPE_SILK)) {
+                struct macio_chip *macio = &macio_chips[0];
+                MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
+                MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
+        }
+
+        /* Some machine models need the clock chip to be properly setup for
+         * clock spreading now. This should be a platform function but we
+         * don't do these at the moment
+         */
+        pmac_tweak_clock_spreading(1);
+
+#endif /* CONFIG_POWER4 */
+
+        /* On all machines, switch modem & serial ports off */
+        np = find_devices("ch-a");
+        while(np) {
+                initial_serial_shutdown(np);
+                np = np->next;
+        }
+        np = find_devices("ch-b");
+        while(np) {
+                initial_serial_shutdown(np);
+                np = np->next;
+        }
+}
+
+void __init
+pmac_feature_init(void)
+{
+        /* Detect the UniNorth memory controller */
+        probe_uninorth();
+
+        /* Probe mac-io controllers */
+        if (probe_macios()) {
+                printk(KERN_WARNING "No mac-io chip found\n");
+                return;
+        }
+
+        /* Setup low-level i2c stuffs */
+        pmac_init_low_i2c();
+
+        /* Probe machine type */
+        if (probe_motherboard())
+                printk(KERN_WARNING "Unknown PowerMac !\n");
+
+        /* Set some initial features (turn off some chips that will
+         * be later turned on)
+         */
+        set_initial_features();
+}
+
+int __init pmac_feature_late_init(void)
+{
+#if 0
+        struct device_node *np;
+
+        /* Request some resources late */
+        if (uninorth_node)
+                request_OF_resource(uninorth_node, 0, NULL);
+        np = find_devices("hammerhead");
+        if (np)
+                request_OF_resource(np, 0, NULL);
+        np = find_devices("interrupt-controller");
+        if (np)
+                request_OF_resource(np, 0, NULL);
+#endif
+        return 0;
+}
+
+device_initcall(pmac_feature_late_init);
+
+#if 0
+static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
+{
+        int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
+        int     bits[8] = { 8,16,0,32,2,4,0,0 };
+        int     freq = (frq >> 8) & 0xf;
+
+        if (freqs[freq] == 0)
+                printk("%s: Unknown HT link frequency %x\n", name, freq);
+        else
+                printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
+                       name, freqs[freq],
+                       bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
+}
+
+void __init pmac_check_ht_link(void)
+{
+        u32     ufreq, freq, ucfg, cfg;
+        struct device_node *pcix_node;
+        u8      px_bus, px_devfn;
+        struct pci_controller *px_hose;
+
+        (void)in_be32(u3_ht + U3_HT_LINK_COMMAND);
+        ucfg = cfg = in_be32(u3_ht + U3_HT_LINK_CONFIG);
+        ufreq = freq = in_be32(u3_ht + U3_HT_LINK_FREQ);
+        dump_HT_speeds("U3 HyperTransport", cfg, freq);
+
+        pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
+        if (pcix_node == NULL) {
+                printk("No PCI-X bridge found\n");
+                return;
+        }
+        if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
+                printk("PCI-X bridge found but not matched to pci\n");
+                return;
+        }
+        px_hose = pci_find_hose_for_OF_device(pcix_node);
+        if (px_hose == NULL) {
+                printk("PCI-X bridge found but not matched to host\n");
+                return;
+        }       
+        early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
+        early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
+        dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
+        early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
+        early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
+        dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
+}
+#endif /* 0 */
+
+/*
+ * Early video resume hook
+ */
+
+static void (*pmac_early_vresume_proc)(void *data);
+static void *pmac_early_vresume_data;
+
+void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
+{
+        if (_machine != _MACH_Pmac)
+                return;
+        preempt_disable();
+        pmac_early_vresume_proc = proc;
+        pmac_early_vresume_data = data;
+        preempt_enable();
+}
+EXPORT_SYMBOL(pmac_set_early_video_resume);
+
+void pmac_call_early_video_resume(void)
+{
+        if (pmac_early_vresume_proc)
+                pmac_early_vresume_proc(pmac_early_vresume_data);
+}
+
+/*
+ * AGP related suspend/resume code
+ */
+
+static struct pci_dev *pmac_agp_bridge;
+static int (*pmac_agp_suspend)(struct pci_dev *bridge);
+static int (*pmac_agp_resume)(struct pci_dev *bridge);
+
+void pmac_register_agp_pm(struct pci_dev *bridge,
+                                 int (*suspend)(struct pci_dev *bridge),
+                                 int (*resume)(struct pci_dev *bridge))
+{
+        if (suspend || resume) {
+                pmac_agp_bridge = bridge;
+                pmac_agp_suspend = suspend;
+                pmac_agp_resume = resume;
+                return;
+        }
+        if (bridge != pmac_agp_bridge)
+                return;
+        pmac_agp_suspend = pmac_agp_resume = NULL;
+        return;
+}
+EXPORT_SYMBOL(pmac_register_agp_pm);
+
+void pmac_suspend_agp_for_card(struct pci_dev *dev)
+{
+        if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
+                return;
+        if (pmac_agp_bridge->bus != dev->bus)
+                return;
+        pmac_agp_suspend(pmac_agp_bridge);
+}
+EXPORT_SYMBOL(pmac_suspend_agp_for_card);
+
+void pmac_resume_agp_for_card(struct pci_dev *dev)
+{
+        if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
+                return;
+        if (pmac_agp_bridge->bus != dev->bus)
+                return;
+        pmac_agp_resume(pmac_agp_bridge);
+}
+EXPORT_SYMBOL(pmac_resume_agp_for_card);
diff --git a/arch/ppc64/kernel/pmac_low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index f3f39e8e337a..f3f39e8e337a 100644
--- a/arch/ppc64/kernel/pmac_low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
diff --git a/arch/ppc64/kernel/pmac_nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index e32a902236e3..4042e2f06ee0 100644
--- a/arch/ppc64/kernel/pmac_nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -15,10 +15,13 @@
 #include <linux/kernel.h>
 #include <linux/stddef.h>
 #include <linux/string.h>
+#include <linux/nvram.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
 #include <linux/bootmem.h>
 #include <linux/completion.h>
 #include <linux/spinlock.h>
@@ -72,20 +75,38 @@ struct core99_header {
 /*
  * Read and write the non-volatile RAM on PowerMacs and CHRP machines.
  */
+static int nvram_naddrs;
 static volatile unsigned char *nvram_data;
+static int is_core_99;
 static int core99_bank = 0;
+static int nvram_partitions[3];
 // XXX Turn that into a sem
 static DEFINE_SPINLOCK(nv_lock);
 
+extern int pmac_newworld;
 extern int system_running;
 
 static int (*core99_write_bank)(int bank, u8* datas);
 static int (*core99_erase_bank)(int bank);
 
-static char *nvram_image __pmacdata;
+static char *nvram_image;
 
 
-static ssize_t __pmac core99_nvram_read(char *buf, size_t count, loff_t *index)
+static unsigned char core99_nvram_read_byte(int addr)
+{
+        if (nvram_image == NULL)
+                return 0xff;
+        return nvram_image[addr];
+}
+
+static void core99_nvram_write_byte(int addr, unsigned char val)
+{
+        if (nvram_image == NULL)
+                return;
+        nvram_image[addr] = val;
+}
+
+static ssize_t core99_nvram_read(char *buf, size_t count, loff_t *index)
 {
         int i;
 
@@ -103,7 +124,7 @@ static ssize_t __pmac core99_nvram_read(char *buf, size_t count, loff_t *index)
         return count;
 }
 
-static ssize_t __pmac core99_nvram_write(char *buf, size_t count, loff_t *index)
+static ssize_t core99_nvram_write(char *buf, size_t count, loff_t *index)
 {
         int i;
 
@@ -121,14 +142,95 @@ static ssize_t __pmac core99_nvram_write(char *buf, size_t count, loff_t *index)
         return count;
 }
 
-static ssize_t __pmac core99_nvram_size(void)
+static ssize_t core99_nvram_size(void)
 {
         if (nvram_image == NULL)
                 return -ENODEV;
         return NVRAM_SIZE;
 }
 
-static u8 __pmac chrp_checksum(struct chrp_header* hdr)
+#ifdef CONFIG_PPC32
+static volatile unsigned char *nvram_addr;
+static int nvram_mult;
+
+static unsigned char direct_nvram_read_byte(int addr)
+{
+        return in_8(&nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult]);
+}
+
+static void direct_nvram_write_byte(int addr, unsigned char val)
+{
+        out_8(&nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult], val);
+}
+
+
+static unsigned char indirect_nvram_read_byte(int addr)
+{
+        unsigned char val;
+        unsigned long flags;
+
+        spin_lock_irqsave(&nv_lock, flags);
+        out_8(nvram_addr, addr >> 5);
+        val = in_8(&nvram_data[(addr & 0x1f) << 4]);
+        spin_unlock_irqrestore(&nv_lock, flags);
+
+        return val;
+}
+
+static void indirect_nvram_write_byte(int addr, unsigned char val)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&nv_lock, flags);
+        out_8(nvram_addr, addr >> 5);
+        out_8(&nvram_data[(addr & 0x1f) << 4], val);
+        spin_unlock_irqrestore(&nv_lock, flags);
+}
+
+
+#ifdef CONFIG_ADB_PMU
+
+static void pmu_nvram_complete(struct adb_request *req)
+{
+        if (req->arg)
+                complete((struct completion *)req->arg);
+}
+
+static unsigned char pmu_nvram_read_byte(int addr)
+{
+        struct adb_request req;
+        DECLARE_COMPLETION(req_complete); 
+        
+        req.arg = system_state == SYSTEM_RUNNING ? &req_complete : NULL;
+        if (pmu_request(&req, pmu_nvram_complete, 3, PMU_READ_NVRAM,
+                        (addr >> 8) & 0xff, addr & 0xff))
+                return 0xff;
+        if (system_state == SYSTEM_RUNNING)
+                wait_for_completion(&req_complete);
+        while (!req.complete)
+                pmu_poll();
+        return req.reply[0];
+}
+
+static void pmu_nvram_write_byte(int addr, unsigned char val)
+{
+        struct adb_request req;
+        DECLARE_COMPLETION(req_complete); 
+        
+        req.arg = system_state == SYSTEM_RUNNING ? &req_complete : NULL;
+        if (pmu_request(&req, pmu_nvram_complete, 4, PMU_WRITE_NVRAM,
+                        (addr >> 8) & 0xff, addr & 0xff, val))
+                return;
+        if (system_state == SYSTEM_RUNNING)
+                wait_for_completion(&req_complete);
+        while (!req.complete)
+                pmu_poll();
+}
+
+#endif /* CONFIG_ADB_PMU */
+#endif /* CONFIG_PPC32 */
+
+static u8 chrp_checksum(struct chrp_header* hdr)
 {
         u8 *ptr;
         u16 sum = hdr->signature;
@@ -139,7 +241,7 @@ static u8 __pmac chrp_checksum(struct chrp_header* hdr)
         return sum;
 }
 
-static u32 __pmac core99_calc_adler(u8 *buffer)
+static u32 core99_calc_adler(u8 *buffer)
 {
         int cnt;
         u32 low, high;
@@ -161,7 +263,7 @@ static u32 __pmac core99_calc_adler(u8 *buffer)
         return (high << 16) | low;
 }
 
-static u32 __pmac core99_check(u8* datas)
+static u32 core99_check(u8* datas)
 {
         struct core99_header* hdr99 = (struct core99_header*)datas;
 
@@ -180,7 +282,7 @@ static u32 __pmac core99_check(u8* datas)
         return hdr99->generation;
 }
 
-static int __pmac sm_erase_bank(int bank)
+static int sm_erase_bank(int bank)
 {
         int stat, i;
         unsigned long timeout;
@@ -194,7 +296,7 @@ static int __pmac sm_erase_bank(int bank)
         timeout = 0;
         do {
                 if (++timeout > 1000000) {
-                        printk(KERN_ERR "nvram: Sharp/Miron flash erase timeout !\n");
+                        printk(KERN_ERR "nvram: Sharp/Micron flash erase timeout !\n");
                         break;
                 }
                 out_8(base, SM_FLASH_CMD_READ_STATUS);
@@ -212,7 +314,7 @@ static int __pmac sm_erase_bank(int bank)
         return 0;
 }
 
-static int __pmac sm_write_bank(int bank, u8* datas)
+static int sm_write_bank(int bank, u8* datas)
 {
         int i, stat = 0;
         unsigned long timeout;
@@ -247,7 +349,7 @@ static int __pmac sm_write_bank(int bank, u8* datas)
         return 0;
 }
 
-static int __pmac amd_erase_bank(int bank)
+static int amd_erase_bank(int bank)
 {
         int i, stat = 0;
         unsigned long timeout;
@@ -294,7 +396,7 @@ static int __pmac amd_erase_bank(int bank)
         return 0;
 }
 
-static int __pmac amd_write_bank(int bank, u8* datas)
+static int amd_write_bank(int bank, u8* datas)
 {
         int i, stat = 0;
         unsigned long timeout;
@@ -340,12 +442,49 @@ static int __pmac amd_write_bank(int bank, u8* datas)
         return 0;
 }
 
+static void __init lookup_partitions(void)
+{
+        u8 buffer[17];
+        int i, offset;
+        struct chrp_header* hdr;
+
+        if (pmac_newworld) {
+                nvram_partitions[pmac_nvram_OF] = -1;
+                nvram_partitions[pmac_nvram_XPRAM] = -1;
+                nvram_partitions[pmac_nvram_NR] = -1;
+                hdr = (struct chrp_header *)buffer;
+
+                offset = 0;
+                buffer[16] = 0;
+                do {
+                        for (i=0;i<16;i++)
+                                buffer[i] = ppc_md.nvram_read_val(offset+i);
+                        if (!strcmp(hdr->name, "common"))
+                                nvram_partitions[pmac_nvram_OF] = offset + 0x10;
+                        if (!strcmp(hdr->name, "APL,MacOS75")) {
+                                nvram_partitions[pmac_nvram_XPRAM] = offset + 0x10;
+                                nvram_partitions[pmac_nvram_NR] = offset + 0x110;
+                        }
+                        offset += (hdr->len * 0x10);
+                } while(offset < NVRAM_SIZE);
+        } else {
+                nvram_partitions[pmac_nvram_OF] = 0x1800;
+                nvram_partitions[pmac_nvram_XPRAM] = 0x1300;
+                nvram_partitions[pmac_nvram_NR] = 0x1400;
+        }
+        DBG("nvram: OF partition at 0x%x\n", nvram_partitions[pmac_nvram_OF]);
+        DBG("nvram: XP partition at 0x%x\n", nvram_partitions[pmac_nvram_XPRAM]);
+        DBG("nvram: NR partition at 0x%x\n", nvram_partitions[pmac_nvram_NR]);
+}
 
-static int __pmac core99_nvram_sync(void)
+static void core99_nvram_sync(void)
 {
         struct core99_header* hdr99;
         unsigned long flags;
 
+        if (!is_core_99 || !nvram_data || !nvram_image)
+                return;
+
         spin_lock_irqsave(&nv_lock, flags);
         if (!memcmp(nvram_image, (u8*)nvram_data + core99_bank*NVRAM_SIZE,
                 NVRAM_SIZE))
@@ -370,32 +509,28 @@ static int __pmac core99_nvram_sync(void)
  bail:
         spin_unlock_irqrestore(&nv_lock, flags);
 
-        return 0;
+#ifdef DEBUG
+        mdelay(2000);
+#endif
 }
 
-int __init pmac_nvram_init(void)
+static int __init core99_nvram_setup(struct device_node *dp)
 {
-        struct device_node *dp;
-        u32 gen_bank0, gen_bank1;
         int i;
+        u32 gen_bank0, gen_bank1;
 
-        dp = find_devices("nvram");
-        if (dp == NULL) {
-                printk(KERN_ERR "Can't find NVRAM device\n");
-                return -ENODEV;
-        }
-        if (!device_is_compatible(dp, "nvram,flash")) {
-                printk(KERN_ERR "Incompatible type of NVRAM\n");
-                return -ENXIO;
+        if (nvram_naddrs < 1) {
+                printk(KERN_ERR "nvram: no address\n");
+                return -EINVAL;
         }
-
         nvram_image = alloc_bootmem(NVRAM_SIZE);
         if (nvram_image == NULL) {
                 printk(KERN_ERR "nvram: can't allocate ram image\n");
                 return -ENOMEM;
         }
         nvram_data = ioremap(dp->addrs[0].address, NVRAM_SIZE*2);
-        
+        nvram_naddrs = 1; /* Make sure we get the correct case */
+
         DBG("nvram: Checking bank 0...\n");
 
         gen_bank0 = core99_check((u8 *)nvram_data);
@@ -408,11 +543,12 @@ int __init pmac_nvram_init(void)
         for (i=0; i<NVRAM_SIZE; i++)
                 nvram_image[i] = nvram_data[i + core99_bank*NVRAM_SIZE];
 
+        ppc_md.nvram_read_val   = core99_nvram_read_byte;
+        ppc_md.nvram_write_val  = core99_nvram_write_byte;
         ppc_md.nvram_read       = core99_nvram_read;
         ppc_md.nvram_write      = core99_nvram_write;
         ppc_md.nvram_size       = core99_nvram_size;
         ppc_md.nvram_sync       = core99_nvram_sync;
-        
         /* 
          * Maybe we could be smarter here though making an exclusive list
          * of known flash chips is a bit nasty as older OF didn't provide us
@@ -427,67 +563,81 @@ int __init pmac_nvram_init(void)
                 core99_erase_bank = sm_erase_bank;
                 core99_write_bank = sm_write_bank;
         }
-
         return 0;
 }
 
-int __pmac pmac_get_partition(int partition)
+int __init pmac_nvram_init(void)
 {
-        struct nvram_partition *part;
-        const char *name;
-        int sig;
-
-        switch(partition) {
-        case pmac_nvram_OF:
-                name = "common";
-                sig = NVRAM_SIG_SYS;
-                break;
-        case pmac_nvram_XPRAM:
-                name = "APL,MacOS75";
-                sig = NVRAM_SIG_OS;
-                break;
-        case pmac_nvram_NR:
-        default:
-                /* Oldworld stuff */
+        struct device_node *dp;
+        int err = 0;
+
+        nvram_naddrs = 0;
+
+        dp = find_devices("nvram");
+        if (dp == NULL) {
+                printk(KERN_ERR "Can't find NVRAM device\n");
                 return -ENODEV;
         }
+        nvram_naddrs = dp->n_addrs;
+        is_core_99 = device_is_compatible(dp, "nvram,flash");
+        if (is_core_99)
+                err = core99_nvram_setup(dp);
+#ifdef CONFIG_PPC32
+        else if (_machine == _MACH_chrp && nvram_naddrs == 1) {
+                nvram_data = ioremap(dp->addrs[0].address + isa_mem_base,
+                                     dp->addrs[0].size);
+                nvram_mult = 1;
+                ppc_md.nvram_read_val   = direct_nvram_read_byte;
+                ppc_md.nvram_write_val  = direct_nvram_write_byte;
+        } else if (nvram_naddrs == 1) {
+                nvram_data = ioremap(dp->addrs[0].address, dp->addrs[0].size);
+                nvram_mult = (dp->addrs[0].size + NVRAM_SIZE - 1) / NVRAM_SIZE;
+                ppc_md.nvram_read_val   = direct_nvram_read_byte;
+                ppc_md.nvram_write_val  = direct_nvram_write_byte;
+        } else if (nvram_naddrs == 2) {
+                nvram_addr = ioremap(dp->addrs[0].address, dp->addrs[0].size);
+                nvram_data = ioremap(dp->addrs[1].address, dp->addrs[1].size);
+                ppc_md.nvram_read_val   = indirect_nvram_read_byte;
+                ppc_md.nvram_write_val  = indirect_nvram_write_byte;
+        } else if (nvram_naddrs == 0 && sys_ctrler == SYS_CTRLER_PMU) {
+#ifdef CONFIG_ADB_PMU
+                nvram_naddrs = -1;
+                ppc_md.nvram_read_val   = pmu_nvram_read_byte;
+                ppc_md.nvram_write_val  = pmu_nvram_write_byte;
+#endif /* CONFIG_ADB_PMU */
+        }
+#endif
+        else {
+                printk(KERN_ERR "Incompatible type of NVRAM\n");
+                return -ENXIO;
+        }
+        lookup_partitions();
+        return err;
+}
 
-        part = nvram_find_partition(sig, name);
-        if (part == NULL)
-                return 0;
-
-        return part->index;
+int pmac_get_partition(int partition)
+{
+        return nvram_partitions[partition];
 }
 
-u8 __pmac pmac_xpram_read(int xpaddr)
+u8 pmac_xpram_read(int xpaddr)
 {
         int offset = pmac_get_partition(pmac_nvram_XPRAM);
-        loff_t index;
-        u8 buf;
-        ssize_t count;
 
         if (offset < 0 || xpaddr < 0 || xpaddr > 0x100)
                 return 0xff;
-        index = offset + xpaddr;
 
-        count = ppc_md.nvram_read(&buf, 1, &index);
-        if (count != 1)
-                return 0xff;
-        return buf;
+        return ppc_md.nvram_read_val(xpaddr + offset);
 }
 
-void __pmac pmac_xpram_write(int xpaddr, u8 data)
+void pmac_xpram_write(int xpaddr, u8 data)
 {
         int offset = pmac_get_partition(pmac_nvram_XPRAM);
-        loff_t index;
-        u8 buf;
 
         if (offset < 0 || xpaddr < 0 || xpaddr > 0x100)
                 return;
-        index = offset + xpaddr;
-        buf = data;
 
-        ppc_md.nvram_write(&buf, 1, &index);
+        ppc_md.nvram_write_val(xpaddr + offset, data);
 }
 
 EXPORT_SYMBOL(pmac_get_partition);
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
new file mode 100644
index 000000000000..8f818d092e2b
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -0,0 +1,1170 @@
+/*
+ * Support for PCI bridges found on Power Macintoshes.
+ *
+ * Copyright (C) 2003 Benjamin Herrenschmuidt (benh@kernel.crashing.org)
+ * Copyright (C) 1997 Paul Mackerras (paulus@samba.org)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+
+#include <asm/sections.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#include <asm/machdep.h>
+#include <asm/pmac_feature.h>
+#include <asm/grackle.h>
+#ifdef CONFIG_PPC64
+#include <asm/iommu.h>
+#include <asm/ppc-pci.h>
+#endif
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+static int add_bridge(struct device_node *dev);
+
+/* XXX Could be per-controller, but I don't think we risk anything by
+ * assuming we won't have both UniNorth and Bandit */
+static int has_uninorth;
+#ifdef CONFIG_PPC64
+static struct pci_controller *u3_agp;
+static struct pci_controller *u3_ht;
+#endif /* CONFIG_PPC64 */
+
+extern u8 pci_cache_line_size;
+extern int pcibios_assign_bus_offset;
+
+struct device_node *k2_skiplist[2];
+
+/*
+ * Magic constants for enabling cache coherency in the bandit/PSX bridge.
+ */
+#define BANDIT_DEVID_2  8
+#define BANDIT_REVID    3
+
+#define BANDIT_DEVNUM   11
+#define BANDIT_MAGIC    0x50
+#define BANDIT_COHERENT 0x40
+
+static int __init fixup_one_level_bus_range(struct device_node *node, int higher)
+{
+        for (; node != 0;node = node->sibling) {
+                int * bus_range;
+                unsigned int *class_code;
+                int len;
+
+                /* For PCI<->PCI bridges or CardBus bridges, we go down */
+                class_code = (unsigned int *) get_property(node, "class-code", NULL);
+                if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
+                        (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
+                        continue;
+                bus_range = (int *) get_property(node, "bus-range", &len);
+                if (bus_range != NULL && len > 2 * sizeof(int)) {
+                        if (bus_range[1] > higher)
+                                higher = bus_range[1];
+                }
+                higher = fixup_one_level_bus_range(node->child, higher);
+        }
+        return higher;
+}
+
+/* This routine fixes the "bus-range" property of all bridges in the
+ * system since they tend to have their "last" member wrong on macs
+ *
+ * Note that the bus numbers manipulated here are OF bus numbers, they
+ * are not Linux bus numbers.
+ */
+static void __init fixup_bus_range(struct device_node *bridge)
+{
+        int * bus_range;
+        int len;
+
+        /* Lookup the "bus-range" property for the hose */
+        bus_range = (int *) get_property(bridge, "bus-range", &len);
+        if (bus_range == NULL || len < 2 * sizeof(int)) {
+                printk(KERN_WARNING "Can't get bus-range for %s\n",
+                               bridge->full_name);
+                return;
+        }
+        bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]);
+}
+
+/*
+ * Apple MacRISC (U3, UniNorth, Bandit, Chaos) PCI controllers.
+ *
+ * The "Bandit" version is present in all early PCI PowerMacs,
+ * and up to the first ones using Grackle. Some machines may
+ * have 2 bandit controllers (2 PCI busses).
+ *
+ * "Chaos" is used in some "Bandit"-type machines as a bridge
+ * for the separate display bus. It is accessed the same
+ * way as bandit, but cannot be probed for devices. It therefore
+ * has its own config access functions.
+ *
+ * The "UniNorth" version is present in all Core99 machines
+ * (iBook, G4, new IMacs, and all the recent Apple machines).
+ * It contains 3 controllers in one ASIC.
+ *
+ * The U3 is the bridge used on G5 machines. It contains an
+ * AGP bus which is dealt with the old UniNorth access routines
+ * and a HyperTransport bus which uses its own set of access
+ * functions.
+ */
+
+#define MACRISC_CFA0(devfn, off)        \
+        ((1 << (unsigned long)PCI_SLOT(dev_fn)) \
+        | (((unsigned long)PCI_FUNC(dev_fn)) << 8) \
+        | (((unsigned long)(off)) & 0xFCUL))
+
+#define MACRISC_CFA1(bus, devfn, off)   \
+        ((((unsigned long)(bus)) << 16) \
+        |(((unsigned long)(devfn)) << 8) \
+        |(((unsigned long)(off)) & 0xFCUL) \
+        |1UL)
+
+static unsigned long macrisc_cfg_access(struct pci_controller* hose,
+                                               u8 bus, u8 dev_fn, u8 offset)
+{
+        unsigned int caddr;
+
+        if (bus == hose->first_busno) {
+                if (dev_fn < (11 << 3))
+                        return 0;
+                caddr = MACRISC_CFA0(dev_fn, offset);
+        } else
+                caddr = MACRISC_CFA1(bus, dev_fn, offset);
+
+        /* Uninorth will return garbage if we don't read back the value ! */
+        do {
+                out_le32(hose->cfg_addr, caddr);
+        } while (in_le32(hose->cfg_addr) != caddr);
+
+        offset &= has_uninorth ? 0x07 : 0x03;
+        return ((unsigned long)hose->cfg_data) + offset;
+}
+
+static int macrisc_read_config(struct pci_bus *bus, unsigned int devfn,
+                                      int offset, int len, u32 *val)
+{
+        struct pci_controller *hose;
+        unsigned long addr;
+
+        hose = pci_bus_to_host(bus);
+        if (hose == NULL)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        addr = macrisc_cfg_access(hose, bus->number, devfn, offset);
+        if (!addr)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        /*
+         * Note: the caller has already checked that offset is
+         * suitably aligned and that len is 1, 2 or 4.
+         */
+        switch (len) {
+        case 1:
+                *val = in_8((u8 *)addr);
+                break;
+        case 2:
+                *val = in_le16((u16 *)addr);
+                break;
+        default:
+                *val = in_le32((u32 *)addr);
+                break;
+        }
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static int macrisc_write_config(struct pci_bus *bus, unsigned int devfn,
+                                       int offset, int len, u32 val)
+{
+        struct pci_controller *hose;
+        unsigned long addr;
+
+        hose = pci_bus_to_host(bus);
+        if (hose == NULL)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        addr = macrisc_cfg_access(hose, bus->number, devfn, offset);
+        if (!addr)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        /*
+         * Note: the caller has already checked that offset is
+         * suitably aligned and that len is 1, 2 or 4.
+         */
+        switch (len) {
+        case 1:
+                out_8((u8 *)addr, val);
+                (void) in_8((u8 *)addr);
+                break;
+        case 2:
+                out_le16((u16 *)addr, val);
+                (void) in_le16((u16 *)addr);
+                break;
+        default:
+                out_le32((u32 *)addr, val);
+                (void) in_le32((u32 *)addr);
+                break;
+        }
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops macrisc_pci_ops =
+{
+        macrisc_read_config,
+        macrisc_write_config
+};
+
+#ifdef CONFIG_PPC32
+/*
+ * Verify that a specific (bus, dev_fn) exists on chaos
+ */
+static int
+chaos_validate_dev(struct pci_bus *bus, int devfn, int offset)
+{
+        struct device_node *np;
+        u32 *vendor, *device;
+
+        np = pci_busdev_to_OF_node(bus, devfn);
+        if (np == NULL)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        vendor = (u32 *)get_property(np, "vendor-id", NULL);
+        device = (u32 *)get_property(np, "device-id", NULL);
+        if (vendor == NULL || device == NULL)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        if ((*vendor == 0x106b) && (*device == 3) && (offset >= 0x10)
+            && (offset != 0x14) && (offset != 0x18) && (offset <= 0x24))
+                return PCIBIOS_BAD_REGISTER_NUMBER;
+
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+chaos_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
+                  int len, u32 *val)
+{
+        int result = chaos_validate_dev(bus, devfn, offset);
+        if (result == PCIBIOS_BAD_REGISTER_NUMBER)
+                *val = ~0U;
+        if (result != PCIBIOS_SUCCESSFUL)
+                return result;
+        return macrisc_read_config(bus, devfn, offset, len, val);
+}
+
+static int
+chaos_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
+                   int len, u32 val)
+{
+        int result = chaos_validate_dev(bus, devfn, offset);
+        if (result != PCIBIOS_SUCCESSFUL)
+                return result;
+        return macrisc_write_config(bus, devfn, offset, len, val);
+}
+
+static struct pci_ops chaos_pci_ops =
+{
+        chaos_read_config,
+        chaos_write_config
+};
+
+static void __init setup_chaos(struct pci_controller *hose,
+                               struct reg_property *addr)
+{
+        /* assume a `chaos' bridge */
+        hose->ops = &chaos_pci_ops;
+        hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
+        hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000);
+}
+#else
+#define setup_chaos(hose, addr)
+#endif /* CONFIG_PPC32 */
+
+#ifdef CONFIG_PPC64
+/*
+ * These versions of U3 HyperTransport config space access ops do not
+ * implement self-view of the HT host yet
+ */
+
+/*
+ * This function deals with some "special cases" devices.
+ *
+ *  0 -> No special case
+ *  1 -> Skip the device but act as if the access was successfull
+ *       (return 0xff's on reads, eventually, cache config space
+ *       accesses in a later version)
+ * -1 -> Hide the device (unsuccessful acess)
+ */
+static int u3_ht_skip_device(struct pci_controller *hose,
+                             struct pci_bus *bus, unsigned int devfn)
+{
+        struct device_node *busdn, *dn;
+        int i;
+
+        /* We only allow config cycles to devices that are in OF device-tree
+         * as we are apparently having some weird things going on with some
+         * revs of K2 on recent G5s
+         */
+        if (bus->self)
+                busdn = pci_device_to_OF_node(bus->self);
+        else
+                busdn = hose->arch_data;
+        for (dn = busdn->child; dn; dn = dn->sibling)
+                if (dn->data && PCI_DN(dn)->devfn == devfn)
+                        break;
+        if (dn == NULL)
+                return -1;
+
+        /*
+         * When a device in K2 is powered down, we die on config
+         * cycle accesses. Fix that here.
+         */
+        for (i=0; i<2; i++)
+                if (k2_skiplist[i] == dn)
+                        return 1;
+
+        return 0;
+}
+
+#define U3_HT_CFA0(devfn, off)          \
+                ((((unsigned long)devfn) << 8) | offset)
+#define U3_HT_CFA1(bus, devfn, off)     \
+                (U3_HT_CFA0(devfn, off) \
+                + (((unsigned long)bus) << 16) \
+                + 0x01000000UL)
+
+static unsigned long u3_ht_cfg_access(struct pci_controller* hose,
+                                             u8 bus, u8 devfn, u8 offset)
+{
+        if (bus == hose->first_busno) {
+                /* For now, we don't self probe U3 HT bridge */
+                if (PCI_SLOT(devfn) == 0)
+                        return 0;
+                return ((unsigned long)hose->cfg_data) + U3_HT_CFA0(devfn, offset);
+        } else
+                return ((unsigned long)hose->cfg_data) + U3_HT_CFA1(bus, devfn, offset);
+}
+
+static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
+                                    int offset, int len, u32 *val)
+{
+        struct pci_controller *hose;
+        unsigned long addr;
+
+        hose = pci_bus_to_host(bus);
+        if (hose == NULL)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        addr = u3_ht_cfg_access(hose, bus->number, devfn, offset);
+        if (!addr)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        switch (u3_ht_skip_device(hose, bus, devfn)) {
+        case 0:
+                break;
+        case 1:
+                switch (len) {
+                case 1:
+                        *val = 0xff; break;
+                case 2:
+                        *val = 0xffff; break;
+                default:
+                        *val = 0xfffffffful; break;
+                }
+                return PCIBIOS_SUCCESSFUL;
+        default:
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        }
+
+        /*
+         * Note: the caller has already checked that offset is
+         * suitably aligned and that len is 1, 2 or 4.
+         */
+        switch (len) {
+        case 1:
+                *val = in_8((u8 *)addr);
+                break;
+        case 2:
+                *val = in_le16((u16 *)addr);
+                break;
+        default:
+                *val = in_le32((u32 *)addr);
+                break;
+        }
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static int u3_ht_write_config(struct pci_bus *bus, unsigned int devfn,
+                                     int offset, int len, u32 val)
+{
+        struct pci_controller *hose;
+        unsigned long addr;
+
+        hose = pci_bus_to_host(bus);
+        if (hose == NULL)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        addr = u3_ht_cfg_access(hose, bus->number, devfn, offset);
+        if (!addr)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        switch (u3_ht_skip_device(hose, bus, devfn)) {
+        case 0:
+                break;
+        case 1:
+                return PCIBIOS_SUCCESSFUL;
+        default:
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        }
+
+        /*
+         * Note: the caller has already checked that offset is
+         * suitably aligned and that len is 1, 2 or 4.
+         */
+        switch (len) {
+        case 1:
+                out_8((u8 *)addr, val);
+                (void) in_8((u8 *)addr);
+                break;
+        case 2:
+                out_le16((u16 *)addr, val);
+                (void) in_le16((u16 *)addr);
+                break;
+        default:
+                out_le32((u32 *)addr, val);
+                (void) in_le32((u32 *)addr);
+                break;
+        }
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops u3_ht_pci_ops =
+{
+        u3_ht_read_config,
+        u3_ht_write_config
+};
+#endif /* CONFIG_PPC64 */
+
+#ifdef CONFIG_PPC32
+/*
+ * For a bandit bridge, turn on cache coherency if necessary.
+ * N.B. we could clean this up using the hose ops directly.
+ */
+static void __init init_bandit(struct pci_controller *bp)
+{
+        unsigned int vendev, magic;
+        int rev;
+
+        /* read the word at offset 0 in config space for device 11 */
+        out_le32(bp->cfg_addr, (1UL << BANDIT_DEVNUM) + PCI_VENDOR_ID);
+        udelay(2);
+        vendev = in_le32(bp->cfg_data);
+        if (vendev == (PCI_DEVICE_ID_APPLE_BANDIT << 16) +
+                        PCI_VENDOR_ID_APPLE) {
+                /* read the revision id */
+                out_le32(bp->cfg_addr,
+                         (1UL << BANDIT_DEVNUM) + PCI_REVISION_ID);
+                udelay(2);
+                rev = in_8(bp->cfg_data);
+                if (rev != BANDIT_REVID)
+                        printk(KERN_WARNING
+                               "Unknown revision %d for bandit\n", rev);
+        } else if (vendev != (BANDIT_DEVID_2 << 16) + PCI_VENDOR_ID_APPLE) {
+                printk(KERN_WARNING "bandit isn't? (%x)\n", vendev);
+                return;
+        }
+
+        /* read the word at offset 0x50 */
+        out_le32(bp->cfg_addr, (1UL << BANDIT_DEVNUM) + BANDIT_MAGIC);
+        udelay(2);
+        magic = in_le32(bp->cfg_data);
+        if ((magic & BANDIT_COHERENT) != 0)
+                return;
+        magic |= BANDIT_COHERENT;
+        udelay(2);
+        out_le32(bp->cfg_data, magic);
+        printk(KERN_INFO "Cache coherency enabled for bandit/PSX\n");
+}
+
+/*
+ * Tweak the PCI-PCI bridge chip on the blue & white G3s.
+ */
+static void __init init_p2pbridge(void)
+{
+        struct device_node *p2pbridge;
+        struct pci_controller* hose;
+        u8 bus, devfn;
+        u16 val;
+
+        /* XXX it would be better here to identify the specific
+           PCI-PCI bridge chip we have. */
+        if ((p2pbridge = find_devices("pci-bridge")) == 0
+            || p2pbridge->parent == NULL
+            || strcmp(p2pbridge->parent->name, "pci") != 0)
+                return;
+        if (pci_device_from_OF_node(p2pbridge, &bus, &devfn) < 0) {
+                DBG("Can't find PCI infos for PCI<->PCI bridge\n");
+                return;
+        }
+        /* Warning: At this point, we have not yet renumbered all busses.
+         * So we must use OF walking to find out hose
+         */
+        hose = pci_find_hose_for_OF_device(p2pbridge);
+        if (!hose) {
+                DBG("Can't find hose for PCI<->PCI bridge\n");
+                return;
+        }
+        if (early_read_config_word(hose, bus, devfn,
+                                   PCI_BRIDGE_CONTROL, &val) < 0) {
+                printk(KERN_ERR "init_p2pbridge: couldn't read bridge control\n");
+                return;
+        }
+        val &= ~PCI_BRIDGE_CTL_MASTER_ABORT;
+        early_write_config_word(hose, bus, devfn, PCI_BRIDGE_CONTROL, val);
+}
+
+/*
+ * Some Apple desktop machines have a NEC PD720100A USB2 controller
+ * on the motherboard. Open Firmware, on these, will disable the
+ * EHCI part of it so it behaves like a pair of OHCI's. This fixup
+ * code re-enables it ;)
+ */
+static void __init fixup_nec_usb2(void)
+{
+        struct device_node *nec;
+
+        for (nec = NULL; (nec = of_find_node_by_name(nec, "usb")) != NULL;) {
+                struct pci_controller *hose;
+                u32 data, *prop;
+                u8 bus, devfn;
+
+                prop = (u32 *)get_property(nec, "vendor-id", NULL);
+                if (prop == NULL)
+                        continue;
+                if (0x1033 != *prop)
+                        continue;
+                prop = (u32 *)get_property(nec, "device-id", NULL);
+                if (prop == NULL)
+                        continue;
+                if (0x0035 != *prop)
+                        continue;
+                prop = (u32 *)get_property(nec, "reg", NULL);
+                if (prop == NULL)
+                        continue;
+                devfn = (prop[0] >> 8) & 0xff;
+                bus = (prop[0] >> 16) & 0xff;
+                if (PCI_FUNC(devfn) != 0)
+                        continue;
+                hose = pci_find_hose_for_OF_device(nec);
+                if (!hose)
+                        continue;
+                early_read_config_dword(hose, bus, devfn, 0xe4, &data);
+                if (data & 1UL) {
+                        printk("Found NEC PD720100A USB2 chip with disabled EHCI, fixing up...\n");
+                        data &= ~1UL;
+                        early_write_config_dword(hose, bus, devfn, 0xe4, data);
+                        early_write_config_byte(hose, bus, devfn | 2, PCI_INTERRUPT_LINE,
+                                nec->intrs[0].line);
+                }
+        }
+}
+
+static void __init setup_bandit(struct pci_controller *hose,
+                                struct reg_property *addr)
+{
+        hose->ops = &macrisc_pci_ops;
+        hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
+        hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000);
+        init_bandit(hose);
+}
+
+static int __init setup_uninorth(struct pci_controller *hose,
+                                 struct reg_property *addr)
+{
+        pci_assign_all_buses = 1;
+        has_uninorth = 1;
+        hose->ops = &macrisc_pci_ops;
+        hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
+        hose->cfg_data = ioremap(addr->address + 0xc00000, 0x1000);
+        /* We "know" that the bridge at f2000000 has the PCI slots. */
+        return addr->address == 0xf2000000;
+}
+#endif
+
+#ifdef CONFIG_PPC64
+static void __init setup_u3_agp(struct pci_controller* hose)
+{
+        /* On G5, we move AGP up to high bus number so we don't need
+         * to reassign bus numbers for HT. If we ever have P2P bridges
+         * on AGP, we'll have to move pci_assign_all_busses to the
+         * pci_controller structure so we enable it for AGP and not for
+         * HT childs.
+         * We hard code the address because of the different size of
+         * the reg address cell, we shall fix that by killing struct
+         * reg_property and using some accessor functions instead
+         */
+        hose->first_busno = 0xf0;
+        hose->last_busno = 0xff;
+        has_uninorth = 1;
+        hose->ops = &macrisc_pci_ops;
+        hose->cfg_addr = ioremap(0xf0000000 + 0x800000, 0x1000);
+        hose->cfg_data = ioremap(0xf0000000 + 0xc00000, 0x1000);
+
+        u3_agp = hose;
+}
+
+static void __init setup_u3_ht(struct pci_controller* hose)
+{
+        struct device_node *np = (struct device_node *)hose->arch_data;
+        int i, cur;
+
+        hose->ops = &u3_ht_pci_ops;
+
+        /* We hard code the address because of the different size of
+         * the reg address cell, we shall fix that by killing struct
+         * reg_property and using some accessor functions instead
+         */
+        hose->cfg_data = (volatile unsigned char *)ioremap(0xf2000000, 0x02000000);
+
+        /*
+         * /ht node doesn't expose a "ranges" property, so we "remove" regions that
+         * have been allocated to AGP. So far, this version of the code doesn't assign
+         * any of the 0xfxxxxxxx "fine" memory regions to /ht.
+         * We need to fix that sooner or later by either parsing all child "ranges"
+         * properties or figuring out the U3 address space decoding logic and
+         * then read its configuration register (if any).
+         */
+        hose->io_base_phys = 0xf4000000;
+        hose->pci_io_size = 0x00400000;
+        hose->io_resource.name = np->full_name;
+        hose->io_resource.start = 0;
+        hose->io_resource.end = 0x003fffff;
+        hose->io_resource.flags = IORESOURCE_IO;
+        hose->pci_mem_offset = 0;
+        hose->first_busno = 0;
+        hose->last_busno = 0xef;
+        hose->mem_resources[0].name = np->full_name;
+        hose->mem_resources[0].start = 0x80000000;
+        hose->mem_resources[0].end = 0xefffffff;
+        hose->mem_resources[0].flags = IORESOURCE_MEM;
+
+        u3_ht = hose;
+
+        if (u3_agp == NULL) {
+                DBG("U3 has no AGP, using full resource range\n");
+                return;
+        }
+
+        /* We "remove" the AGP resources from the resources allocated to HT, that
+         * is we create "holes". However, that code does assumptions that so far
+         * happen to be true (cross fingers...), typically that resources in the
+         * AGP node are properly ordered
+         */
+        cur = 0;
+        for (i=0; i<3; i++) {
+                struct resource *res = &u3_agp->mem_resources[i];
+                if (res->flags != IORESOURCE_MEM)
+                        continue;
+                /* We don't care about "fine" resources */
+                if (res->start >= 0xf0000000)
+                        continue;
+                /* Check if it's just a matter of "shrinking" us in one direction */
+                if (hose->mem_resources[cur].start == res->start) {
+                        DBG("U3/HT: shrink start of %d, %08lx -> %08lx\n",
+                            cur, hose->mem_resources[cur].start, res->end + 1);
+                        hose->mem_resources[cur].start = res->end + 1;
+                        continue;
+                }
+                if (hose->mem_resources[cur].end == res->end) {
+                        DBG("U3/HT: shrink end of %d, %08lx -> %08lx\n",
+                            cur, hose->mem_resources[cur].end, res->start - 1);
+                        hose->mem_resources[cur].end = res->start - 1;
+                        continue;
+                }
+                /* No, it's not the case, we need a hole */
+                if (cur == 2) {
+                        /* not enough resources for a hole, we drop part of the range */
+                        printk(KERN_WARNING "Running out of resources for /ht host !\n");
+                        hose->mem_resources[cur].end = res->start - 1;
+                        continue;
+                }
+                cur++;
+                DBG("U3/HT: hole, %d end at %08lx, %d start at %08lx\n",
+                    cur-1, res->start - 1, cur, res->end + 1);
+                hose->mem_resources[cur].name = np->full_name;
+                hose->mem_resources[cur].flags = IORESOURCE_MEM;
+                hose->mem_resources[cur].start = res->end + 1;
+                hose->mem_resources[cur].end = hose->mem_resources[cur-1].end;
+                hose->mem_resources[cur-1].end = res->start - 1;
+        }
+}
+
+/* XXX this needs to be converged between ppc32 and ppc64... */
+static struct pci_controller * __init pcibios_alloc_controller(void)
+{
+        struct pci_controller *hose;
+
+        hose = alloc_bootmem(sizeof(struct pci_controller));
+        if (hose)
+                pci_setup_pci_controller(hose);
+        return hose;
+}
+#endif
+
+/*
+ * We assume that if we have a G3 powermac, we have one bridge called
+ * "pci" (a MPC106) and no bandit or chaos bridges, and contrariwise,
+ * if we have one or more bandit or chaos bridges, we don't have a MPC106.
+ */
+static int __init add_bridge(struct device_node *dev)
+{
+        int len;
+        struct pci_controller *hose;
+#ifdef CONFIG_PPC32
+        struct reg_property *addr;
+#endif
+        char *disp_name;
+        int *bus_range;
+        int primary = 1;
+
+        DBG("Adding PCI host bridge %s\n", dev->full_name);
+
+#ifdef CONFIG_PPC32
+        /* XXX fix this */
+        addr = (struct reg_property *) get_property(dev, "reg", &len);
+        if (addr == NULL || len < sizeof(*addr)) {
+                printk(KERN_WARNING "Can't use %s: no address\n",
+                       dev->full_name);
+                return -ENODEV;
+        }
+#endif
+        bus_range = (int *) get_property(dev, "bus-range", &len);
+        if (bus_range == NULL || len < 2 * sizeof(int)) {
+                printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
+                               dev->full_name);
+        }
+
+        hose = pcibios_alloc_controller();
+        if (!hose)
+                return -ENOMEM;
+        hose->arch_data = dev;
+        hose->first_busno = bus_range ? bus_range[0] : 0;
+        hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+        disp_name = NULL;
+#ifdef CONFIG_POWER4
+        if (device_is_compatible(dev, "u3-agp")) {
+                setup_u3_agp(hose);
+                disp_name = "U3-AGP";
+                primary = 0;
+        } else if (device_is_compatible(dev, "u3-ht")) {
+                setup_u3_ht(hose);
+                disp_name = "U3-HT";
+                primary = 1;
+        }
+        printk(KERN_INFO "Found %s PCI host bridge.  Firmware bus number: %d->%d\n",
+                disp_name, hose->first_busno, hose->last_busno);
+#else
+        if (device_is_compatible(dev, "uni-north")) {
+                primary = setup_uninorth(hose, addr);
+                disp_name = "UniNorth";
+        } else if (strcmp(dev->name, "pci") == 0) {
+                /* XXX assume this is a mpc106 (grackle) */
+                setup_grackle(hose);
+                disp_name = "Grackle (MPC106)";
+        } else if (strcmp(dev->name, "bandit") == 0) {
+                setup_bandit(hose, addr);
+                disp_name = "Bandit";
+        } else if (strcmp(dev->name, "chaos") == 0) {
+                setup_chaos(hose, addr);
+                disp_name = "Chaos";
+                primary = 0;
+        }
+        printk(KERN_INFO "Found %s PCI host bridge at 0x%08lx. Firmware bus number: %d->%d\n",
+                disp_name, addr->address, hose->first_busno, hose->last_busno);
+#endif
+        DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
+                hose, hose->cfg_addr, hose->cfg_data);
+
+        /* Interpret the "ranges" property */
+        /* This also maps the I/O region and sets isa_io/mem_base */
+        pci_process_bridge_OF_ranges(hose, dev, primary);
+
+        /* Fixup "bus-range" OF property */
+        fixup_bus_range(dev);
+
+        return 0;
+}
+
+static void __init
+pcibios_fixup_OF_interrupts(void)
+{
+        struct pci_dev* dev = NULL;
+
+        /*
+         * Open Firmware often doesn't initialize the
+         * PCI_INTERRUPT_LINE config register properly, so we
+         * should find the device node and apply the interrupt
+         * obtained from the OF device-tree
+         */
+        for_each_pci_dev(dev) {
+                struct device_node *node;
+                node = pci_device_to_OF_node(dev);
+                /* this is the node, see if it has interrupts */
+                if (node && node->n_intrs > 0)
+                        dev->irq = node->intrs[0].line;
+                pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+        }
+}
+
+void __init
+pmac_pcibios_fixup(void)
+{
+        /* Fixup interrupts according to OF tree */
+        pcibios_fixup_OF_interrupts();
+}
+
+#ifdef CONFIG_PPC64
+static void __init pmac_fixup_phb_resources(void)
+{
+        struct pci_controller *hose, *tmp;
+
+        list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
+                printk(KERN_INFO "PCI Host %d, io start: %lx; io end: %lx\n",
+                       hose->global_number,
+                       hose->io_resource.start, hose->io_resource.end);
+        }
+}
+#endif
+
+void __init pmac_pci_init(void)
+{
+        struct device_node *np, *root;
+        struct device_node *ht = NULL;
+
+        root = of_find_node_by_path("/");
+        if (root == NULL) {
+                printk(KERN_CRIT "pmac_pci_init: can't find root "
+                       "of device tree\n");
+                return;
+        }
+        for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
+                if (np->name == NULL)
+                        continue;
+                if (strcmp(np->name, "bandit") == 0
+                    || strcmp(np->name, "chaos") == 0
+                    || strcmp(np->name, "pci") == 0) {
+                        if (add_bridge(np) == 0)
+                                of_node_get(np);
+                }
+                if (strcmp(np->name, "ht") == 0) {
+                        of_node_get(np);
+                        ht = np;
+                }
+        }
+        of_node_put(root);
+
+#ifdef CONFIG_PPC64
+        /* Probe HT last as it relies on the agp resources to be already
+         * setup
+         */
+        if (ht && add_bridge(ht) != 0)
+                of_node_put(ht);
+
+        /*
+         * We need to call pci_setup_phb_io for the HT bridge first
+         * so it gets the I/O port numbers starting at 0, and we
+         * need to call it for the AGP bridge after that so it gets
+         * small positive I/O port numbers.
+         */
+        if (u3_ht)
+                pci_setup_phb_io(u3_ht, 1);
+        if (u3_agp)
+                pci_setup_phb_io(u3_agp, 0);
+
+        /*
+         * On ppc64, fixup the IO resources on our host bridges as
+         * the common code does it only for children of the host bridges
+         */
+        pmac_fixup_phb_resources();
+
+        /* Setup the linkage between OF nodes and PHBs */
+        pci_devs_phb_init();
+
+        /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We
+         * assume there is no P2P bridge on the AGP bus, which should be a
+         * safe assumptions hopefully.
+         */
+        if (u3_agp) {
+                struct device_node *np = u3_agp->arch_data;
+                PCI_DN(np)->busno = 0xf0;
+                for (np = np->child; np; np = np->sibling)
+                        PCI_DN(np)->busno = 0xf0;
+        }
+
+        /* map in PCI I/O space */
+        phbs_remap_io();
+
+        /* pmac_check_ht_link(); */
+
+        /* Tell pci.c to not use the common resource allocation mechanism */
+        pci_probe_only = 1;
+
+        /* Allow all IO */
+        io_page_mask = -1;
+
+#else /* CONFIG_PPC64 */
+        init_p2pbridge();
+        fixup_nec_usb2();
+
+        /* We are still having some issues with the Xserve G4, enabling
+         * some offset between bus number and domains for now when we
+         * assign all busses should help for now
+         */
+        if (pci_assign_all_buses)
+                pcibios_assign_bus_offset = 0x10;
+#endif
+}
+
+int
+pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
+{
+        struct device_node* node;
+        int updatecfg = 0;
+        int uninorth_child;
+
+        node = pci_device_to_OF_node(dev);
+
+        /* We don't want to enable USB controllers absent from the OF tree
+         * (iBook second controller)
+         */
+        if (dev->vendor == PCI_VENDOR_ID_APPLE
+            && (dev->class == ((PCI_CLASS_SERIAL_USB << 8) | 0x10))
+            && !node) {
+                printk(KERN_INFO "Apple USB OHCI %s disabled by firmware\n",
+                       pci_name(dev));
+                return -EINVAL;
+        }
+
+        if (!node)
+                return 0;
+
+        uninorth_child = node->parent &&
+                device_is_compatible(node->parent, "uni-north");
+
+        /* Firewire & GMAC were disabled after PCI probe, the driver is
+         * claiming them, we must re-enable them now.
+         */
+        if (uninorth_child && !strcmp(node->name, "firewire") &&
+            (device_is_compatible(node, "pci106b,18") ||
+             device_is_compatible(node, "pci106b,30") ||
+             device_is_compatible(node, "pci11c1,5811"))) {
+                pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, node, 0, 1);
+                pmac_call_feature(PMAC_FTR_1394_ENABLE, node, 0, 1);
+                updatecfg = 1;
+        }
+        if (uninorth_child && !strcmp(node->name, "ethernet") &&
+            device_is_compatible(node, "gmac")) {
+                pmac_call_feature(PMAC_FTR_GMAC_ENABLE, node, 0, 1);
+                updatecfg = 1;
+        }
+
+        if (updatecfg) {
+                u16 cmd;
+
+                /*
+                 * Make sure PCI is correctly configured
+                 *
+                 * We use old pci_bios versions of the function since, by
+                 * default, gmac is not powered up, and so will be absent
+                 * from the kernel initial PCI lookup.
+                 *
+                 * Should be replaced by 2.4 new PCI mechanisms and really
+                 * register the device.
+                 */
+                pci_read_config_word(dev, PCI_COMMAND, &cmd);
+                cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
+                        | PCI_COMMAND_INVALIDATE;
+                pci_write_config_word(dev, PCI_COMMAND, cmd);
+                pci_write_config_byte(dev, PCI_LATENCY_TIMER, 16);
+                pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
+                                      L1_CACHE_BYTES >> 2);
+        }
+
+        return 0;
+}
+
+/* We power down some devices after they have been probed. They'll
+ * be powered back on later on
+ */
+void __init pmac_pcibios_after_init(void)
+{
+        struct device_node* nd;
+
+#ifdef CONFIG_BLK_DEV_IDE
+        struct pci_dev *dev = NULL;
+
+        /* OF fails to initialize IDE controllers on macs
+         * (and maybe other machines)
+         *
+         * Ideally, this should be moved to the IDE layer, but we need
+         * to check specifically with Andre Hedrick how to do it cleanly
+         * since the common IDE code seem to care about the fact that the
+         * BIOS may have disabled a controller.
+         *
+         * -- BenH
+         */
+        for_each_pci_dev(dev) {
+                if ((dev->class >> 16) == PCI_BASE_CLASS_STORAGE)
+                        pci_enable_device(dev);
+        }
+#endif /* CONFIG_BLK_DEV_IDE */
+
+        nd = find_devices("firewire");
+        while (nd) {
+                if (nd->parent && (device_is_compatible(nd, "pci106b,18") ||
+                                   device_is_compatible(nd, "pci106b,30") ||
+                                   device_is_compatible(nd, "pci11c1,5811"))
+                    && device_is_compatible(nd->parent, "uni-north")) {
+                        pmac_call_feature(PMAC_FTR_1394_ENABLE, nd, 0, 0);
+                        pmac_call_feature(PMAC_FTR_1394_CABLE_POWER, nd, 0, 0);
+                }
+                nd = nd->next;
+        }
+        nd = find_devices("ethernet");
+        while (nd) {
+                if (nd->parent && device_is_compatible(nd, "gmac")
+                    && device_is_compatible(nd->parent, "uni-north"))
+                        pmac_call_feature(PMAC_FTR_GMAC_ENABLE, nd, 0, 0);
+                nd = nd->next;
+        }
+}
+
+#ifdef CONFIG_PPC32
+void pmac_pci_fixup_cardbus(struct pci_dev* dev)
+{
+        if (_machine != _MACH_Pmac)
+                return;
+        /*
+         * Fix the interrupt routing on the various cardbus bridges
+         * used on powerbooks
+         */
+        if (dev->vendor != PCI_VENDOR_ID_TI)
+                return;
+        if (dev->device == PCI_DEVICE_ID_TI_1130 ||
+            dev->device == PCI_DEVICE_ID_TI_1131) {
+                u8 val;
+                /* Enable PCI interrupt */
+                if (pci_read_config_byte(dev, 0x91, &val) == 0)
+                        pci_write_config_byte(dev, 0x91, val | 0x30);
+                /* Disable ISA interrupt mode */
+                if (pci_read_config_byte(dev, 0x92, &val) == 0)
+                        pci_write_config_byte(dev, 0x92, val & ~0x06);
+        }
+        if (dev->device == PCI_DEVICE_ID_TI_1210 ||
+            dev->device == PCI_DEVICE_ID_TI_1211 ||
+            dev->device == PCI_DEVICE_ID_TI_1410 ||
+            dev->device == PCI_DEVICE_ID_TI_1510) {
+                u8 val;
+                /* 0x8c == TI122X_IRQMUX, 2 says to route the INTA
+                   signal out the MFUNC0 pin */
+                if (pci_read_config_byte(dev, 0x8c, &val) == 0)
+                        pci_write_config_byte(dev, 0x8c, (val & ~0x0f) | 2);
+                /* Disable ISA interrupt mode */
+                if (pci_read_config_byte(dev, 0x92, &val) == 0)
+                        pci_write_config_byte(dev, 0x92, val & ~0x06);
+        }
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_ANY_ID, pmac_pci_fixup_cardbus);
+
+void pmac_pci_fixup_pciata(struct pci_dev* dev)
+{
+       u8 progif = 0;
+
+       /*
+        * On PowerMacs, we try to switch any PCI ATA controller to
+        * fully native mode
+        */
+        if (_machine != _MACH_Pmac)
+                return;
+        /* Some controllers don't have the class IDE */
+        if (dev->vendor == PCI_VENDOR_ID_PROMISE)
+                switch(dev->device) {
+                case PCI_DEVICE_ID_PROMISE_20246:
+                case PCI_DEVICE_ID_PROMISE_20262:
+                case PCI_DEVICE_ID_PROMISE_20263:
+                case PCI_DEVICE_ID_PROMISE_20265:
+                case PCI_DEVICE_ID_PROMISE_20267:
+                case PCI_DEVICE_ID_PROMISE_20268:
+                case PCI_DEVICE_ID_PROMISE_20269:
+                case PCI_DEVICE_ID_PROMISE_20270:
+                case PCI_DEVICE_ID_PROMISE_20271:
+                case PCI_DEVICE_ID_PROMISE_20275:
+                case PCI_DEVICE_ID_PROMISE_20276:
+                case PCI_DEVICE_ID_PROMISE_20277:
+                        goto good;
+                }
+        /* Others, check PCI class */
+        if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
+                return;
+ good:
+        pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
+        if ((progif & 5) != 5) {
+                printk(KERN_INFO "Forcing PCI IDE into native mode: %s\n", pci_name(dev));
+                (void) pci_write_config_byte(dev, PCI_CLASS_PROG, progif|5);
+                if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) ||
+                    (progif & 5) != 5)
+                        printk(KERN_ERR "Rewrite of PROGIF failed !\n");
+        }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pmac_pci_fixup_pciata);
+#endif
+
+/*
+ * Disable second function on K2-SATA, it's broken
+ * and disable IO BARs on first one
+ */
+static void fixup_k2_sata(struct pci_dev* dev)
+{
+        int i;
+        u16 cmd;
+
+        if (PCI_FUNC(dev->devfn) > 0) {
+                pci_read_config_word(dev, PCI_COMMAND, &cmd);
+                cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
+                pci_write_config_word(dev, PCI_COMMAND, cmd);
+                for (i = 0; i < 6; i++) {
+                        dev->resource[i].start = dev->resource[i].end = 0;
+                        dev->resource[i].flags = 0;
+                        pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + 4 * i, 0);
+                }
+        } else {
+                pci_read_config_word(dev, PCI_COMMAND, &cmd);
+                cmd &= ~PCI_COMMAND_IO;
+                pci_write_config_word(dev, PCI_COMMAND, cmd);
+                for (i = 0; i < 5; i++) {
+                        dev->resource[i].start = dev->resource[i].end = 0;
+                        dev->resource[i].flags = 0;
+                        pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + 4 * i, 0);
+                }
+        }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, 0x0240, fixup_k2_sata);
+
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
new file mode 100644
index 000000000000..0037a8c8c81f
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -0,0 +1,678 @@
+/*
+ *  Support for the interrupt controllers found on Power Macintosh,
+ *  currently Apple's "Grand Central" interrupt controller in all
+ *  it's incarnations. OpenPIC support used on newer machines is
+ *  in a separate file
+ *
+ *  Copyright (C) 1997 Paul Mackerras (paulus@samba.org)
+ *
+ *  Maintained by Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/sysdev.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#include <linux/module.h>
+
+#include <asm/sections.h>
+#include <asm/io.h>
+#include <asm/smp.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#include <asm/time.h>
+#include <asm/pmac_feature.h>
+#include <asm/mpic.h>
+
+#include "pmac.h"
+
+/*
+ * XXX this should be in xmon.h, but putting it there means xmon.h
+ * has to include <linux/interrupt.h> (to get irqreturn_t), which
+ * causes all sorts of problems.  -- paulus
+ */
+extern irqreturn_t xmon_irq(int, void *, struct pt_regs *);
+
+#ifdef CONFIG_PPC32
+struct pmac_irq_hw {
+        unsigned int    event;
+        unsigned int    enable;
+        unsigned int    ack;
+        unsigned int    level;
+};
+
+/* Default addresses */
+static volatile struct pmac_irq_hw *pmac_irq_hw[4] = {
+        (struct pmac_irq_hw *) 0xf3000020,
+        (struct pmac_irq_hw *) 0xf3000010,
+        (struct pmac_irq_hw *) 0xf4000020,
+        (struct pmac_irq_hw *) 0xf4000010,
+};
+
+#define GC_LEVEL_MASK           0x3ff00000
+#define OHARE_LEVEL_MASK        0x1ff00000
+#define HEATHROW_LEVEL_MASK     0x1ff00000
+
+static int max_irqs;
+static int max_real_irqs;
+static u32 level_mask[4];
+
+static DEFINE_SPINLOCK(pmac_pic_lock);
+
+#define GATWICK_IRQ_POOL_SIZE        10
+static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE];
+
+/*
+ * Mark an irq as "lost".  This is only used on the pmac
+ * since it can lose interrupts (see pmac_set_irq_mask).
+ * -- Cort
+ */
+void
+__set_lost(unsigned long irq_nr, int nokick)
+{
+        if (!test_and_set_bit(irq_nr, ppc_lost_interrupts)) {
+                atomic_inc(&ppc_n_lost_interrupts);
+                if (!nokick)
+                        set_dec(1);
+        }
+}
+
+static void
+pmac_mask_and_ack_irq(unsigned int irq_nr)
+{
+        unsigned long bit = 1UL << (irq_nr & 0x1f);
+        int i = irq_nr >> 5;
+        unsigned long flags;
+
+        if ((unsigned)irq_nr >= max_irqs)
+                return;
+
+        clear_bit(irq_nr, ppc_cached_irq_mask);
+        if (test_and_clear_bit(irq_nr, ppc_lost_interrupts))
+                atomic_dec(&ppc_n_lost_interrupts);
+        spin_lock_irqsave(&pmac_pic_lock, flags);
+        out_le32(&pmac_irq_hw[i]->enable, ppc_cached_irq_mask[i]);
+        out_le32(&pmac_irq_hw[i]->ack, bit);
+        do {
+                /* make sure ack gets to controller before we enable
+                   interrupts */
+                mb();
+        } while((in_le32(&pmac_irq_hw[i]->enable) & bit)
+                != (ppc_cached_irq_mask[i] & bit));
+        spin_unlock_irqrestore(&pmac_pic_lock, flags);
+}
+
+static void pmac_set_irq_mask(unsigned int irq_nr, int nokicklost)
+{
+        unsigned long bit = 1UL << (irq_nr & 0x1f);
+        int i = irq_nr >> 5;
+        unsigned long flags;
+
+        if ((unsigned)irq_nr >= max_irqs)
+                return;
+
+        spin_lock_irqsave(&pmac_pic_lock, flags);
+        /* enable unmasked interrupts */
+        out_le32(&pmac_irq_hw[i]->enable, ppc_cached_irq_mask[i]);
+
+        do {
+                /* make sure mask gets to controller before we
+                   return to user */
+                mb();
+        } while((in_le32(&pmac_irq_hw[i]->enable) & bit)
+                != (ppc_cached_irq_mask[i] & bit));
+
+        /*
+         * Unfortunately, setting the bit in the enable register
+         * when the device interrupt is already on *doesn't* set
+         * the bit in the flag register or request another interrupt.
+         */
+        if (bit & ppc_cached_irq_mask[i] & in_le32(&pmac_irq_hw[i]->level))
+                __set_lost((ulong)irq_nr, nokicklost);
+        spin_unlock_irqrestore(&pmac_pic_lock, flags);
+}
+
+/* When an irq gets requested for the first client, if it's an
+ * edge interrupt, we clear any previous one on the controller
+ */
+static unsigned int pmac_startup_irq(unsigned int irq_nr)
+{
+        unsigned long bit = 1UL << (irq_nr & 0x1f);
+        int i = irq_nr >> 5;
+
+        if ((irq_desc[irq_nr].status & IRQ_LEVEL) == 0)
+                out_le32(&pmac_irq_hw[i]->ack, bit);
+        set_bit(irq_nr, ppc_cached_irq_mask);
+        pmac_set_irq_mask(irq_nr, 0);
+
+        return 0;
+}
+
+static void pmac_mask_irq(unsigned int irq_nr)
+{
+        clear_bit(irq_nr, ppc_cached_irq_mask);
+        pmac_set_irq_mask(irq_nr, 0);
+        mb();
+}
+
+static void pmac_unmask_irq(unsigned int irq_nr)
+{
+        set_bit(irq_nr, ppc_cached_irq_mask);
+        pmac_set_irq_mask(irq_nr, 0);
+}
+
+static void pmac_end_irq(unsigned int irq_nr)
+{
+        if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))
+            && irq_desc[irq_nr].action) {
+                set_bit(irq_nr, ppc_cached_irq_mask);
+                pmac_set_irq_mask(irq_nr, 1);
+        }
+}
+
+
+struct hw_interrupt_type pmac_pic = {
+        .typename       = " PMAC-PIC ",
+        .startup        = pmac_startup_irq,
+        .enable         = pmac_unmask_irq,
+        .disable        = pmac_mask_irq,
+        .ack            = pmac_mask_and_ack_irq,
+        .end            = pmac_end_irq,
+};
+
+struct hw_interrupt_type gatwick_pic = {
+        .typename       = " GATWICK  ",
+        .startup        = pmac_startup_irq,
+        .enable         = pmac_unmask_irq,
+        .disable        = pmac_mask_irq,
+        .ack            = pmac_mask_and_ack_irq,
+        .end            = pmac_end_irq,
+};
+
+static irqreturn_t gatwick_action(int cpl, void *dev_id, struct pt_regs *regs)
+{
+        int irq, bits;
+
+        for (irq = max_irqs; (irq -= 32) >= max_real_irqs; ) {
+                int i = irq >> 5;
+                bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i];
+                /* We must read level interrupts from the level register */
+                bits |= (in_le32(&pmac_irq_hw[i]->level) & level_mask[i]);
+                bits &= ppc_cached_irq_mask[i];
+                if (bits == 0)
+                        continue;
+                irq += __ilog2(bits);
+                __do_IRQ(irq, regs);
+                return IRQ_HANDLED;
+        }
+        printk("gatwick irq not from gatwick pic\n");
+        return IRQ_NONE;
+}
+
+int
+pmac_get_irq(struct pt_regs *regs)
+{
+        int irq;
+        unsigned long bits = 0;
+
+#ifdef CONFIG_SMP
+        void psurge_smp_message_recv(struct pt_regs *);
+
+        /* IPI's are a hack on the powersurge -- Cort */
+        if ( smp_processor_id() != 0 ) {
+                psurge_smp_message_recv(regs);
+                return -2;      /* ignore, already handled */
+        }
+#endif /* CONFIG_SMP */
+        for (irq = max_real_irqs; (irq -= 32) >= 0; ) {
+                int i = irq >> 5;
+                bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i];
+                /* We must read level interrupts from the level register */
+                bits |= (in_le32(&pmac_irq_hw[i]->level) & level_mask[i]);
+                bits &= ppc_cached_irq_mask[i];
+                if (bits == 0)
+                        continue;
+                irq += __ilog2(bits);
+                break;
+        }
+
+        return irq;
+}
+
+/* This routine will fix some missing interrupt values in the device tree
+ * on the gatwick mac-io controller used by some PowerBooks
+ */
+static void __init
+pmac_fix_gatwick_interrupts(struct device_node *gw, int irq_base)
+{
+        struct device_node *node;
+        int count;
+
+        memset(gatwick_int_pool, 0, sizeof(gatwick_int_pool));
+        node = gw->child;
+        count = 0;
+        while(node)
+        {
+                /* Fix SCC */
+                if (strcasecmp(node->name, "escc") == 0)
+                        if (node->child) {
+                                if (node->child->n_intrs < 3) {
+                                        node->child->intrs = &gatwick_int_pool[count];
+                                        count += 3;
+                                }
+                                node->child->n_intrs = 3;
+                                node->child->intrs[0].line = 15+irq_base;
+                                node->child->intrs[1].line =  4+irq_base;
+                                node->child->intrs[2].line =  5+irq_base;
+                                printk(KERN_INFO "irq: fixed SCC on second controller (%d,%d,%d)\n",
+                                        node->child->intrs[0].line,
+                                        node->child->intrs[1].line,
+                                        node->child->intrs[2].line);
+                        }
+                /* Fix media-bay & left SWIM */
+                if (strcasecmp(node->name, "media-bay") == 0) {
+                        struct device_node* ya_node;
+
+                        if (node->n_intrs == 0)
+                                node->intrs = &gatwick_int_pool[count++];
+                        node->n_intrs = 1;
+                        node->intrs[0].line = 29+irq_base;
+                        printk(KERN_INFO "irq: fixed media-bay on second controller (%d)\n",
+                                        node->intrs[0].line);
+
+                        ya_node = node->child;
+                        while(ya_node)
+                        {
+                                if (strcasecmp(ya_node->name, "floppy") == 0) {
+                                        if (ya_node->n_intrs < 2) {
+                                                ya_node->intrs = &gatwick_int_pool[count];
+                                                count += 2;
+                                        }
+                                        ya_node->n_intrs = 2;
+                                        ya_node->intrs[0].line = 19+irq_base;
+                                        ya_node->intrs[1].line =  1+irq_base;
+                                        printk(KERN_INFO "irq: fixed floppy on second controller (%d,%d)\n",
+                                                ya_node->intrs[0].line, ya_node->intrs[1].line);
+                                }
+                                if (strcasecmp(ya_node->name, "ata4") == 0) {
+                                        if (ya_node->n_intrs < 2) {
+                                                ya_node->intrs = &gatwick_int_pool[count];
+                                                count += 2;
+                                        }
+                                        ya_node->n_intrs = 2;
+                                        ya_node->intrs[0].line = 14+irq_base;
+                                        ya_node->intrs[1].line =  3+irq_base;
+                                        printk(KERN_INFO "irq: fixed ide on second controller (%d,%d)\n",
+                                                ya_node->intrs[0].line, ya_node->intrs[1].line);
+                                }
+                                ya_node = ya_node->sibling;
+                        }
+                }
+                node = node->sibling;
+        }
+        if (count > 10) {
+                printk("WARNING !! Gatwick interrupt pool overflow\n");
+                printk("  GATWICK_IRQ_POOL_SIZE = %d\n", GATWICK_IRQ_POOL_SIZE);
+                printk("              requested = %d\n", count);
+        }
+}
+
+/*
+ * The PowerBook 3400/2400/3500 can have a combo ethernet/modem
+ * card which includes an ohare chip that acts as a second interrupt
+ * controller.  If we find this second ohare, set it up and fix the
+ * interrupt value in the device tree for the ethernet chip.
+ */
+static int __init enable_second_ohare(void)
+{
+        unsigned char bus, devfn;
+        unsigned short cmd;
+        unsigned long addr;
+        struct device_node *irqctrler = find_devices("pci106b,7");
+        struct device_node *ether;
+
+        if (irqctrler == NULL || irqctrler->n_addrs <= 0)
+                return -1;
+        addr = (unsigned long) ioremap(irqctrler->addrs[0].address, 0x40);
+        pmac_irq_hw[1] = (volatile struct pmac_irq_hw *)(addr + 0x20);
+        max_irqs = 64;
+        if (pci_device_from_OF_node(irqctrler, &bus, &devfn) == 0) {
+                struct pci_controller* hose = pci_find_hose_for_OF_device(irqctrler);
+                if (!hose)
+                    printk(KERN_ERR "Can't find PCI hose for OHare2 !\n");
+                else {
+                    early_read_config_word(hose, bus, devfn, PCI_COMMAND, &cmd);
+                    cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+                    cmd &= ~PCI_COMMAND_IO;
+                    early_write_config_word(hose, bus, devfn, PCI_COMMAND, cmd);
+                }
+        }
+
+        /* Fix interrupt for the modem/ethernet combo controller. The number
+           in the device tree (27) is bogus (correct for the ethernet-only
+           board but not the combo ethernet/modem board).
+           The real interrupt is 28 on the second controller -> 28+32 = 60.
+        */
+        ether = find_devices("pci1011,14");
+        if (ether && ether->n_intrs > 0) {
+                ether->intrs[0].line = 60;
+                printk(KERN_INFO "irq: Fixed ethernet IRQ to %d\n",
+                       ether->intrs[0].line);
+        }
+
+        /* Return the interrupt number of the cascade */
+        return irqctrler->intrs[0].line;
+}
+
+#ifdef CONFIG_XMON
+static struct irqaction xmon_action = {
+        .handler        = xmon_irq,
+        .flags          = 0,
+        .mask           = CPU_MASK_NONE,
+        .name           = "NMI - XMON"
+};
+#endif
+
+static struct irqaction gatwick_cascade_action = {
+        .handler        = gatwick_action,
+        .flags          = SA_INTERRUPT,
+        .mask           = CPU_MASK_NONE,
+        .name           = "cascade",
+};
+#endif /* CONFIG_PPC32 */
+
+static int pmac_u3_cascade(struct pt_regs *regs, void *data)
+{
+        return mpic_get_one_irq((struct mpic *)data, regs);
+}
+
+void __init pmac_pic_init(void)
+{
+        struct device_node *irqctrler  = NULL;
+        struct device_node *irqctrler2 = NULL;
+        struct device_node *np;
+#ifdef CONFIG_PPC32
+        int i;
+        unsigned long addr;
+        int irq_cascade = -1;
+#endif
+        struct mpic *mpic1, *mpic2;
+
+        /* We first try to detect Apple's new Core99 chipset, since mac-io
+         * is quite different on those machines and contains an IBM MPIC2.
+         */
+        np = find_type_devices("open-pic");
+        while (np) {
+                if (np->parent && !strcmp(np->parent->name, "u3"))
+                        irqctrler2 = np;
+                else
+                        irqctrler = np;
+                np = np->next;
+        }
+        if (irqctrler != NULL && irqctrler->n_addrs > 0) {
+                unsigned char senses[128];
+
+                printk(KERN_INFO "PowerMac using OpenPIC irq controller at 0x%08x\n",
+                       (unsigned int)irqctrler->addrs[0].address);
+                pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler, 0, 0);
+
+                prom_get_irq_senses(senses, 0, 128);
+                mpic1 = mpic_alloc(irqctrler->addrs[0].address,
+                                   MPIC_PRIMARY | MPIC_WANTS_RESET,
+                                   0, 0, 128, 252, senses, 128, " OpenPIC  ");
+                BUG_ON(mpic1 == NULL);
+                mpic_init(mpic1);               
+
+                if (irqctrler2 != NULL && irqctrler2->n_intrs > 0 &&
+                    irqctrler2->n_addrs > 0) {
+                        printk(KERN_INFO "Slave OpenPIC at 0x%08x hooked on IRQ %d\n",
+                               (u32)irqctrler2->addrs[0].address,
+                               irqctrler2->intrs[0].line);
+
+                        pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler2, 0, 0);
+                        prom_get_irq_senses(senses, 128, 128 + 124);
+
+                        /* We don't need to set MPIC_BROKEN_U3 here since we don't have
+                         * hypertransport interrupts routed to it
+                         */
+                        mpic2 = mpic_alloc(irqctrler2->addrs[0].address,
+                                           MPIC_BIG_ENDIAN | MPIC_WANTS_RESET,
+                                           0, 128, 124, 0, senses, 124,
+                                           " U3-MPIC  ");
+                        BUG_ON(mpic2 == NULL);
+                        mpic_init(mpic2);
+                        mpic_setup_cascade(irqctrler2->intrs[0].line,
+                                           pmac_u3_cascade, mpic2);
+                }
+#if defined(CONFIG_XMON) && defined(CONFIG_PPC32)
+                {
+                        struct device_node* pswitch;
+                        int nmi_irq;
+
+                        pswitch = find_devices("programmer-switch");
+                        if (pswitch && pswitch->n_intrs) {
+                                nmi_irq = pswitch->intrs[0].line;
+                                mpic_irq_set_priority(nmi_irq, 9);
+                                setup_irq(nmi_irq, &xmon_action);
+                        }
+                }
+#endif  /* CONFIG_XMON */
+                return;
+        }
+        irqctrler = NULL;
+
+#ifdef CONFIG_PPC32
+        /* Get the level/edge settings, assume if it's not
+         * a Grand Central nor an OHare, then it's an Heathrow
+         * (or Paddington).
+         */
+        ppc_md.get_irq = pmac_get_irq;
+        if (find_devices("gc"))
+                level_mask[0] = GC_LEVEL_MASK;
+        else if (find_devices("ohare")) {
+                level_mask[0] = OHARE_LEVEL_MASK;
+                /* We might have a second cascaded ohare */
+                level_mask[1] = OHARE_LEVEL_MASK;
+        } else {
+                level_mask[0] = HEATHROW_LEVEL_MASK;
+                level_mask[1] = 0;
+                /* We might have a second cascaded heathrow */
+                level_mask[2] = HEATHROW_LEVEL_MASK;
+                level_mask[3] = 0;
+        }
+
+        /*
+         * G3 powermacs and 1999 G3 PowerBooks have 64 interrupts,
+         * 1998 G3 Series PowerBooks have 128,
+         * other powermacs have 32.
+         * The combo ethernet/modem card for the Powerstar powerbooks
+         * (2400/3400/3500, ohare based) has a second ohare chip
+         * effectively making a total of 64.
+         */
+        max_irqs = max_real_irqs = 32;
+        irqctrler = find_devices("mac-io");
+        if (irqctrler)
+        {
+                max_real_irqs = 64;
+                if (irqctrler->next)
+                        max_irqs = 128;
+                else
+                        max_irqs = 64;
+        }
+        for ( i = 0; i < max_real_irqs ; i++ )
+                irq_desc[i].handler = &pmac_pic;
+
+        /* get addresses of first controller */
+        if (irqctrler) {
+                if  (irqctrler->n_addrs > 0) {
+                        addr = (unsigned long)
+                                ioremap(irqctrler->addrs[0].address, 0x40);
+                        for (i = 0; i < 2; ++i)
+                                pmac_irq_hw[i] = (volatile struct pmac_irq_hw*)
+                                        (addr + (2 - i) * 0x10);
+                }
+
+                /* get addresses of second controller */
+                irqctrler = irqctrler->next;
+                if (irqctrler && irqctrler->n_addrs > 0) {
+                        addr = (unsigned long)
+                                ioremap(irqctrler->addrs[0].address, 0x40);
+                        for (i = 2; i < 4; ++i)
+                                pmac_irq_hw[i] = (volatile struct pmac_irq_hw*)
+                                        (addr + (4 - i) * 0x10);
+                        irq_cascade = irqctrler->intrs[0].line;
+                        if (device_is_compatible(irqctrler, "gatwick"))
+                                pmac_fix_gatwick_interrupts(irqctrler, max_real_irqs);
+                }
+        } else {
+                /* older powermacs have a GC (grand central) or ohare at
+                   f3000000, with interrupt control registers at f3000020. */
+                addr = (unsigned long) ioremap(0xf3000000, 0x40);
+                pmac_irq_hw[0] = (volatile struct pmac_irq_hw *) (addr + 0x20);
+        }
+
+        /* PowerBooks 3400 and 3500 can have a second controller in a second
+           ohare chip, on the combo ethernet/modem card */
+        if (machine_is_compatible("AAPL,3400/2400")
+             || machine_is_compatible("AAPL,3500"))
+                irq_cascade = enable_second_ohare();
+
+        /* disable all interrupts in all controllers */
+        for (i = 0; i * 32 < max_irqs; ++i)
+                out_le32(&pmac_irq_hw[i]->enable, 0);
+        /* mark level interrupts */
+        for (i = 0; i < max_irqs; i++)
+                if (level_mask[i >> 5] & (1UL << (i & 0x1f)))
+                        irq_desc[i].status = IRQ_LEVEL;
+
+        /* get interrupt line of secondary interrupt controller */
+        if (irq_cascade >= 0) {
+                printk(KERN_INFO "irq: secondary controller on irq %d\n",
+                        (int)irq_cascade);
+                for ( i = max_real_irqs ; i < max_irqs ; i++ )
+                        irq_desc[i].handler = &gatwick_pic;
+                setup_irq(irq_cascade, &gatwick_cascade_action);
+        }
+        printk("System has %d possible interrupts\n", max_irqs);
+        if (max_irqs != max_real_irqs)
+                printk(KERN_DEBUG "%d interrupts on main controller\n",
+                        max_real_irqs);
+
+#ifdef CONFIG_XMON
+        setup_irq(20, &xmon_action);
+#endif  /* CONFIG_XMON */
+#endif  /* CONFIG_PPC32 */
+}
+
+#ifdef CONFIG_PM
+/*
+ * These procedures are used in implementing sleep on the powerbooks.
+ * sleep_save_intrs() saves the states of all interrupt enables
+ * and disables all interrupts except for the nominated one.
+ * sleep_restore_intrs() restores the states of all interrupt enables.
+ */
+unsigned long sleep_save_mask[2];
+
+/* This used to be passed by the PMU driver but that link got
+ * broken with the new driver model. We use this tweak for now...
+ */
+static int pmacpic_find_viaint(void)
+{
+        int viaint = -1;
+
+#ifdef CONFIG_ADB_PMU
+        struct device_node *np;
+
+        if (pmu_get_model() != PMU_OHARE_BASED)
+                goto not_found;
+        np = of_find_node_by_name(NULL, "via-pmu");
+        if (np == NULL)
+                goto not_found;
+        viaint = np->intrs[0].line;
+#endif /* CONFIG_ADB_PMU */
+
+not_found:
+        return viaint;
+}
+
+static int pmacpic_suspend(struct sys_device *sysdev, pm_message_t state)
+{
+        int viaint = pmacpic_find_viaint();
+
+        sleep_save_mask[0] = ppc_cached_irq_mask[0];
+        sleep_save_mask[1] = ppc_cached_irq_mask[1];
+        ppc_cached_irq_mask[0] = 0;
+        ppc_cached_irq_mask[1] = 0;
+        if (viaint > 0)
+                set_bit(viaint, ppc_cached_irq_mask);
+        out_le32(&pmac_irq_hw[0]->enable, ppc_cached_irq_mask[0]);
+        if (max_real_irqs > 32)
+                out_le32(&pmac_irq_hw[1]->enable, ppc_cached_irq_mask[1]);
+        (void)in_le32(&pmac_irq_hw[0]->event);
+        /* make sure mask gets to controller before we return to caller */
+        mb();
+        (void)in_le32(&pmac_irq_hw[0]->enable);
+
+        return 0;
+}
+
+static int pmacpic_resume(struct sys_device *sysdev)
+{
+        int i;
+
+        out_le32(&pmac_irq_hw[0]->enable, 0);
+        if (max_real_irqs > 32)
+                out_le32(&pmac_irq_hw[1]->enable, 0);
+        mb();
+        for (i = 0; i < max_real_irqs; ++i)
+                if (test_bit(i, sleep_save_mask))
+                        pmac_unmask_irq(i);
+
+        return 0;
+}
+
+#endif /* CONFIG_PM */
+
+static struct sysdev_class pmacpic_sysclass = {
+        set_kset_name("pmac_pic"),
+};
+
+static struct sys_device device_pmacpic = {
+        .id             = 0,
+        .cls            = &pmacpic_sysclass,
+};
+
+static struct sysdev_driver driver_pmacpic = {
+#ifdef CONFIG_PM
+        .suspend        = &pmacpic_suspend,
+        .resume         = &pmacpic_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init init_pmacpic_sysfs(void)
+{
+#ifdef CONFIG_PPC32
+        if (max_irqs == 0)
+                return -ENODEV;
+#endif
+        printk(KERN_DEBUG "Registering pmac pic with sysfs...\n");
+        sysdev_class_register(&pmacpic_sysclass);
+        sysdev_register(&device_pmacpic);
+        sysdev_driver_register(&pmacpic_sysclass, &driver_pmacpic);
+        return 0;
+}
+
+subsys_initcall(init_pmacpic_sysfs);
+
diff --git a/arch/powerpc/platforms/powermac/pic.h b/arch/powerpc/platforms/powermac/pic.h
new file mode 100644
index 000000000000..664103dfeef9
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/pic.h
@@ -0,0 +1,11 @@
+#ifndef __PPC_PLATFORMS_PMAC_PIC_H
+#define __PPC_PLATFORMS_PMAC_PIC_H
+
+#include <linux/irq.h>
+
+extern struct hw_interrupt_type pmac_pic;
+
+void pmac_pic_init(void);
+int pmac_get_irq(struct pt_regs *regs);
+
+#endif /* __PPC_PLATFORMS_PMAC_PIC_H */
diff --git a/arch/powerpc/platforms/powermac/pmac.h b/arch/powerpc/platforms/powermac/pmac.h
new file mode 100644
index 000000000000..2ad25e13423e
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/pmac.h
@@ -0,0 +1,51 @@
+#ifndef __PMAC_H__
+#define __PMAC_H__
+
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/irq.h>
+
+/*
+ * Declaration for the various functions exported by the
+ * pmac_* files. Mostly for use by pmac_setup
+ */
+
+struct rtc_time;
+
+extern long pmac_time_init(void);
+extern unsigned long pmac_get_boot_time(void);
+extern void pmac_get_rtc_time(struct rtc_time *);
+extern int pmac_set_rtc_time(struct rtc_time *);
+extern void pmac_read_rtc_time(void);
+extern void pmac_calibrate_decr(void);
+extern void pmac_pcibios_fixup(void);
+extern void pmac_pci_init(void);
+extern unsigned long pmac_ide_get_base(int index);
+extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
+        unsigned long data_port, unsigned long ctrl_port, int *irq);
+
+extern void pmac_nvram_update(void);
+extern unsigned char pmac_nvram_read_byte(int addr);
+extern void pmac_nvram_write_byte(int addr, unsigned char val);
+extern int pmac_pci_enable_device_hook(struct pci_dev *dev, int initial);
+extern void pmac_pcibios_after_init(void);
+extern int of_show_percpuinfo(struct seq_file *m, int i);
+
+extern void pmac_pci_init(void);
+extern void pmac_setup_pci_dma(void);
+extern void pmac_check_ht_link(void);
+
+extern void pmac_setup_smp(void);
+
+extern unsigned long pmac_ide_get_base(int index);
+extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
+        unsigned long data_port, unsigned long ctrl_port, int *irq);
+
+extern int pmac_nvram_init(void);
+
+extern struct hw_interrupt_type pmac_pic;
+
+void pmac_pic_init(void);
+int pmac_get_irq(struct pt_regs *regs);
+
+#endif /* __PMAC_H__ */
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
new file mode 100644
index 000000000000..6f62af597291
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -0,0 +1,794 @@
+/*
+ *  Powermac setup and early boot code plus other random bits.
+ *
+ *  PowerPC version
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ *  Adapted for Power Macintosh by Paul Mackerras
+ *    Copyright (C) 1996 Paul Mackerras (paulus@samba.org)
+ *
+ *  Derived from "arch/alpha/kernel/setup.c"
+ *    Copyright (C) 1995 Linus Torvalds
+ *
+ *  Maintained by Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ */
+
+/*
+ * bootup setup stuff..
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/tty.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/major.h>
+#include <linux/initrd.h>
+#include <linux/vt_kern.h>
+#include <linux/console.h>
+#include <linux/ide.h>
+#include <linux/pci.h>
+#include <linux/adb.h>
+#include <linux/cuda.h>
+#include <linux/pmu.h>
+#include <linux/irq.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/bitops.h>
+#include <linux/suspend.h>
+
+#include <asm/reg.h>
+#include <asm/sections.h>
+#include <asm/prom.h>
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/pci-bridge.h>
+#include <asm/ohare.h>
+#include <asm/mediabay.h>
+#include <asm/machdep.h>
+#include <asm/dma.h>
+#include <asm/cputable.h>
+#include <asm/btext.h>
+#include <asm/pmac_feature.h>
+#include <asm/time.h>
+#include <asm/of_device.h>
+#include <asm/mmu_context.h>
+#include <asm/iommu.h>
+#include <asm/smu.h>
+#include <asm/pmc.h>
+#include <asm/mpic.h>
+
+#include "pmac.h"
+
+#undef SHOW_GATWICK_IRQS
+
+unsigned char drive_info;
+
+int ppc_override_l2cr = 0;
+int ppc_override_l2cr_value;
+int has_l2cache = 0;
+
+int pmac_newworld = 1;
+
+static int current_root_goodness = -1;
+
+extern int pmac_newworld;
+extern struct machdep_calls pmac_md;
+
+#define DEFAULT_ROOT_DEVICE Root_SDA1   /* sda1 - slightly silly choice */
+
+#ifdef CONFIG_PPC64
+#include <asm/udbg.h>
+int sccdbg;
+#endif
+
+extern void zs_kgdb_hook(int tty_num);
+
+sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN;
+EXPORT_SYMBOL(sys_ctrler);
+
+#ifdef CONFIG_PMAC_SMU
+unsigned long smu_cmdbuf_abs;
+EXPORT_SYMBOL(smu_cmdbuf_abs);
+#endif
+
+#ifdef CONFIG_SMP
+extern struct smp_ops_t psurge_smp_ops;
+extern struct smp_ops_t core99_smp_ops;
+#endif /* CONFIG_SMP */
+
+static void pmac_show_cpuinfo(struct seq_file *m)
+{
+        struct device_node *np;
+        char *pp;
+        int plen;
+        int mbmodel;
+        unsigned int mbflags;
+        char* mbname;
+
+        mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
+                                    PMAC_MB_INFO_MODEL, 0);
+        mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
+                                    PMAC_MB_INFO_FLAGS, 0);
+        if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
+                              (long) &mbname) != 0)
+                mbname = "Unknown";
+
+        /* find motherboard type */
+        seq_printf(m, "machine\t\t: ");
+        np = of_find_node_by_path("/");
+        if (np != NULL) {
+                pp = (char *) get_property(np, "model", NULL);
+                if (pp != NULL)
+                        seq_printf(m, "%s\n", pp);
+                else
+                        seq_printf(m, "PowerMac\n");
+                pp = (char *) get_property(np, "compatible", &plen);
+                if (pp != NULL) {
+                        seq_printf(m, "motherboard\t:");
+                        while (plen > 0) {
+                                int l = strlen(pp) + 1;
+                                seq_printf(m, " %s", pp);
+                                plen -= l;
+                                pp += l;
+                        }
+                        seq_printf(m, "\n");
+                }
+                of_node_put(np);
+        } else
+                seq_printf(m, "PowerMac\n");
+
+        /* print parsed model */
+        seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
+        seq_printf(m, "pmac flags\t: %08x\n", mbflags);
+
+        /* find l2 cache info */
+        np = of_find_node_by_name(NULL, "l2-cache");
+        if (np == NULL)
+                np = of_find_node_by_type(NULL, "cache");
+        if (np != NULL) {
+                unsigned int *ic = (unsigned int *)
+                        get_property(np, "i-cache-size", NULL);
+                unsigned int *dc = (unsigned int *)
+                        get_property(np, "d-cache-size", NULL);
+                seq_printf(m, "L2 cache\t:");
+                has_l2cache = 1;
+                if (get_property(np, "cache-unified", NULL) != 0 && dc) {
+                        seq_printf(m, " %dK unified", *dc / 1024);
+                } else {
+                        if (ic)
+                                seq_printf(m, " %dK instruction", *ic / 1024);
+                        if (dc)
+                                seq_printf(m, "%s %dK data",
+                                           (ic? " +": ""), *dc / 1024);
+                }
+                pp = get_property(np, "ram-type", NULL);
+                if (pp)
+                        seq_printf(m, " %s", pp);
+                seq_printf(m, "\n");
+                of_node_put(np);
+        }
+
+        /* Indicate newworld/oldworld */
+        seq_printf(m, "pmac-generation\t: %s\n",
+                   pmac_newworld ? "NewWorld" : "OldWorld");
+}
+
+static void pmac_show_percpuinfo(struct seq_file *m, int i)
+{
+#ifdef CONFIG_CPU_FREQ_PMAC
+        extern unsigned int pmac_get_one_cpufreq(int i);
+        unsigned int freq = pmac_get_one_cpufreq(i);
+        if (freq != 0) {
+                seq_printf(m, "clock\t\t: %dMHz\n", freq/1000);
+                return;
+        }
+#endif /* CONFIG_CPU_FREQ_PMAC */
+}
+
+#ifndef CONFIG_ADB_CUDA
+int find_via_cuda(void)
+{
+        if (!find_devices("via-cuda"))
+                return 0;
+        printk("WARNING ! Your machine is CUDA-based but your kernel\n");
+        printk("          wasn't compiled with CONFIG_ADB_CUDA option !\n");
+        return 0;
+}
+#endif
+
+#ifndef CONFIG_ADB_PMU
+int find_via_pmu(void)
+{
+        if (!find_devices("via-pmu"))
+                return 0;
+        printk("WARNING ! Your machine is PMU-based but your kernel\n");
+        printk("          wasn't compiled with CONFIG_ADB_PMU option !\n");
+        return 0;
+}
+#endif
+
+#ifndef CONFIG_PMAC_SMU
+int smu_init(void)
+{
+        /* should check and warn if SMU is present */
+        return 0;
+}
+#endif
+
+#ifdef CONFIG_PPC32
+static volatile u32 *sysctrl_regs;
+
+static void __init ohare_init(void)
+{
+        /* this area has the CPU identification register
+           and some registers used by smp boards */
+        sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
+
+        /*
+         * Turn on the L2 cache.
+         * We assume that we have a PSX memory controller iff
+         * we have an ohare I/O controller.
+         */
+        if (find_devices("ohare") != NULL) {
+                if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
+                        if (sysctrl_regs[4] & 0x10)
+                                sysctrl_regs[4] |= 0x04000020;
+                        else
+                                sysctrl_regs[4] |= 0x04000000;
+                        if(has_l2cache)
+                                printk(KERN_INFO "Level 2 cache enabled\n");
+                }
+        }
+}
+
+static void __init l2cr_init(void)
+{
+        /* Checks "l2cr-value" property in the registry */
+        if (cpu_has_feature(CPU_FTR_L2CR)) {
+                struct device_node *np = find_devices("cpus");
+                if (np == 0)
+                        np = find_type_devices("cpu");
+                if (np != 0) {
+                        unsigned int *l2cr = (unsigned int *)
+                                get_property(np, "l2cr-value", NULL);
+                        if (l2cr != 0) {
+                                ppc_override_l2cr = 1;
+                                ppc_override_l2cr_value = *l2cr;
+                                _set_L2CR(0);
+                                _set_L2CR(ppc_override_l2cr_value);
+                        }
+                }
+        }
+
+        if (ppc_override_l2cr)
+                printk(KERN_INFO "L2CR overridden (0x%x), "
+                       "backside cache is %s\n",
+                       ppc_override_l2cr_value,
+                       (ppc_override_l2cr_value & 0x80000000)
+                                ? "enabled" : "disabled");
+}
+#endif
+
+void __init pmac_setup_arch(void)
+{
+        struct device_node *cpu, *ic;
+        int *fp;
+        unsigned long pvr;
+
+        pvr = PVR_VER(mfspr(SPRN_PVR));
+
+        /* Set loops_per_jiffy to a half-way reasonable value,
+           for use until calibrate_delay gets called. */
+        loops_per_jiffy = 50000000 / HZ;
+        cpu = of_find_node_by_type(NULL, "cpu");
+        if (cpu != NULL) {
+                fp = (int *) get_property(cpu, "clock-frequency", NULL);
+                if (fp != NULL) {
+                        if (pvr >= 0x30 && pvr < 0x80)
+                                /* PPC970 etc. */
+                                loops_per_jiffy = *fp / (3 * HZ);
+                        else if (pvr == 4 || pvr >= 8)
+                                /* 604, G3, G4 etc. */
+                                loops_per_jiffy = *fp / HZ;
+                        else
+                                /* 601, 603, etc. */
+                                loops_per_jiffy = *fp / (2 * HZ);
+                }
+                of_node_put(cpu);
+        }
+
+        /* See if newworld or oldworld */
+        for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; )
+                if (get_property(ic, "interrupt-controller", NULL))
+                        break;
+        pmac_newworld = (ic != NULL);
+        if (ic)
+                of_node_put(ic);
+
+        /* Lookup PCI hosts */
+        pmac_pci_init();
+
+#ifdef CONFIG_PPC32
+        ohare_init();
+        l2cr_init();
+#endif /* CONFIG_PPC32 */
+
+#ifdef CONFIG_PPC64
+        /* Probe motherboard chipset */
+        /* this is done earlier in setup_arch for 32-bit */
+        pmac_feature_init();
+
+        /* We can NAP */
+        powersave_nap = 1;
+        printk(KERN_INFO "Using native/NAP idle loop\n");
+#endif
+
+#ifdef CONFIG_KGDB
+        zs_kgdb_hook(0);
+#endif
+
+        find_via_cuda();
+        find_via_pmu();
+        smu_init();
+
+#ifdef CONFIG_NVRAM
+        pmac_nvram_init();
+#endif
+
+#ifdef CONFIG_PPC32
+#ifdef CONFIG_BLK_DEV_INITRD
+        if (initrd_start)
+                ROOT_DEV = Root_RAM0;
+        else
+#endif
+                ROOT_DEV = DEFAULT_ROOT_DEVICE;
+#endif
+
+#ifdef CONFIG_SMP
+        /* Check for Core99 */
+        if (find_devices("uni-n") || find_devices("u3"))
+                smp_ops = &core99_smp_ops;
+#ifdef CONFIG_PPC32
+        else
+                smp_ops = &psurge_smp_ops;
+#endif
+#endif /* CONFIG_SMP */
+}
+
+char *bootpath;
+char *bootdevice;
+void *boot_host;
+int boot_target;
+int boot_part;
+extern dev_t boot_dev;
+
+#ifdef CONFIG_SCSI
+void __init note_scsi_host(struct device_node *node, void *host)
+{
+        int l;
+        char *p;
+
+        l = strlen(node->full_name);
+        if (bootpath != NULL && bootdevice != NULL
+            && strncmp(node->full_name, bootdevice, l) == 0
+            && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
+                boot_host = host;
+                /*
+                 * There's a bug in OF 1.0.5.  (Why am I not surprised.)
+                 * If you pass a path like scsi/sd@1:0 to canon, it returns
+                 * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
+                 * That is, the scsi target number doesn't get preserved.
+                 * So we pick the target number out of bootpath and use that.
+                 */
+                p = strstr(bootpath, "/sd@");
+                if (p != NULL) {
+                        p += 4;
+                        boot_target = simple_strtoul(p, NULL, 10);
+                        p = strchr(p, ':');
+                        if (p != NULL)
+                                boot_part = simple_strtoul(p + 1, NULL, 10);
+                }
+        }
+}
+EXPORT_SYMBOL(note_scsi_host);
+#endif
+
+#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
+static dev_t __init find_ide_boot(void)
+{
+        char *p;
+        int n;
+        dev_t __init pmac_find_ide_boot(char *bootdevice, int n);
+
+        if (bootdevice == NULL)
+                return 0;
+        p = strrchr(bootdevice, '/');
+        if (p == NULL)
+                return 0;
+        n = p - bootdevice;
+
+        return pmac_find_ide_boot(bootdevice, n);
+}
+#endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
+
+static void __init find_boot_device(void)
+{
+#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
+        boot_dev = find_ide_boot();
+#endif
+}
+
+/* TODO: Merge the suspend-to-ram with the common code !!!
+ * currently, this is a stub implementation for suspend-to-disk
+ * only
+ */
+
+#ifdef CONFIG_SOFTWARE_SUSPEND
+
+static int pmac_pm_prepare(suspend_state_t state)
+{
+        printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
+
+        return 0;
+}
+
+static int pmac_pm_enter(suspend_state_t state)
+{
+        printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
+
+        /* Giveup the lazy FPU & vec so we don't have to back them
+         * up from the low level code
+         */
+        enable_kernel_fp();
+
+#ifdef CONFIG_ALTIVEC
+        if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
+                enable_kernel_altivec();
+#endif /* CONFIG_ALTIVEC */
+
+        return 0;
+}
+
+static int pmac_pm_finish(suspend_state_t state)
+{
+        printk(KERN_DEBUG "%s(%d)\n", __FUNCTION__, state);
+
+        /* Restore userland MMU context */
+        set_context(current->active_mm->context, current->active_mm->pgd);
+
+        return 0;
+}
+
+static struct pm_ops pmac_pm_ops = {
+        .pm_disk_mode   = PM_DISK_SHUTDOWN,
+        .prepare        = pmac_pm_prepare,
+        .enter          = pmac_pm_enter,
+        .finish         = pmac_pm_finish,
+};
+
+#endif /* CONFIG_SOFTWARE_SUSPEND */
+
+static int initializing = 1;
+
+static int pmac_late_init(void)
+{
+        initializing = 0;
+#ifdef CONFIG_SOFTWARE_SUSPEND
+        pm_set_ops(&pmac_pm_ops);
+#endif /* CONFIG_SOFTWARE_SUSPEND */
+        return 0;
+}
+
+late_initcall(pmac_late_init);
+
+/* can't be __init - can be called whenever a disk is first accessed */
+void note_bootable_part(dev_t dev, int part, int goodness)
+{
+        static int found_boot = 0;
+        char *p;
+
+        if (!initializing)
+                return;
+        if ((goodness <= current_root_goodness) &&
+            ROOT_DEV != DEFAULT_ROOT_DEVICE)
+                return;
+        p = strstr(saved_command_line, "root=");
+        if (p != NULL && (p == saved_command_line || p[-1] == ' '))
+                return;
+
+        if (!found_boot) {
+                find_boot_device();
+                found_boot = 1;
+        }
+        if (!boot_dev || dev == boot_dev) {
+                ROOT_DEV = dev + part;
+                boot_dev = 0;
+                current_root_goodness = goodness;
+        }
+}
+
+#ifdef CONFIG_ADB_CUDA
+static void cuda_restart(void)
+{
+        struct adb_request req;
+
+        cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_RESET_SYSTEM);
+        for (;;)
+                cuda_poll();
+}
+
+static void cuda_shutdown(void)
+{
+        struct adb_request req;
+
+        cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN);
+        for (;;)
+                cuda_poll();
+}
+
+#else
+#define cuda_restart()
+#define cuda_shutdown()
+#endif
+
+#ifndef CONFIG_ADB_PMU
+#define pmu_restart()
+#define pmu_shutdown()
+#endif
+
+#ifndef CONFIG_PMAC_SMU
+#define smu_restart()
+#define smu_shutdown()
+#endif
+
+static void pmac_restart(char *cmd)
+{
+        switch (sys_ctrler) {
+        case SYS_CTRLER_CUDA:
+                cuda_restart();
+                break;
+        case SYS_CTRLER_PMU:
+                pmu_restart();
+                break;
+        case SYS_CTRLER_SMU:
+                smu_restart();
+                break;
+        default: ;
+        }
+}
+
+static void pmac_power_off(void)
+{
+        switch (sys_ctrler) {
+        case SYS_CTRLER_CUDA:
+                cuda_shutdown();
+                break;
+        case SYS_CTRLER_PMU:
+                pmu_shutdown();
+                break;
+        case SYS_CTRLER_SMU:
+                smu_shutdown();
+                break;
+        default: ;
+        }
+}
+
+static void
+pmac_halt(void)
+{
+        pmac_power_off();
+}
+
+#ifdef CONFIG_PPC32
+void __init pmac_init(void)
+{
+        /* isa_io_base gets set in pmac_pci_init */
+        isa_mem_base = PMAC_ISA_MEM_BASE;
+        pci_dram_offset = PMAC_PCI_DRAM_OFFSET;
+        ISA_DMA_THRESHOLD = ~0L;
+        DMA_MODE_READ = 1;
+        DMA_MODE_WRITE = 2;
+
+        ppc_md = pmac_md;
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+#ifdef CONFIG_BLK_DEV_IDE_PMAC
+        ppc_ide_md.ide_init_hwif        = pmac_ide_init_hwif_ports;
+        ppc_ide_md.default_io_base      = pmac_ide_get_base;
+#endif /* CONFIG_BLK_DEV_IDE_PMAC */
+#endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
+
+        if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0);
+
+}
+#endif
+
+/* 
+ * Early initialization.
+ */
+static void __init pmac_init_early(void)
+{
+#ifdef CONFIG_PPC64
+        /* Initialize hash table, from now on, we can take hash faults
+         * and call ioremap
+         */
+        hpte_init_native();
+
+        /* Init SCC */
+        if (strstr(cmd_line, "sccdbg")) {
+                sccdbg = 1;
+                udbg_init_scc(NULL);
+        }
+
+        /* Setup interrupt mapping options */
+        ppc64_interrupt_controller = IC_OPEN_PIC;
+
+        iommu_init_early_u3();
+#endif
+}
+
+static void __init pmac_progress(char *s, unsigned short hex)
+{
+#ifdef CONFIG_PPC64
+        if (sccdbg) {
+                udbg_puts(s);
+                udbg_puts("\n");
+                return;
+        }
+#endif
+#ifdef CONFIG_BOOTX_TEXT
+        if (boot_text_mapped) {
+                btext_drawstring(s);
+                btext_drawchar('\n');
+        }
+#endif /* CONFIG_BOOTX_TEXT */
+}
+
+/*
+ * pmac has no legacy IO, anything calling this function has to
+ * fail or bad things will happen
+ */
+static int pmac_check_legacy_ioport(unsigned int baseport)
+{
+        return -ENODEV;
+}
+
+static int __init pmac_declare_of_platform_devices(void)
+{
+        struct device_node *np, *npp;
+
+        np = find_devices("uni-n");
+        if (np) {
+                for (np = np->child; np != NULL; np = np->sibling)
+                        if (strncmp(np->name, "i2c", 3) == 0) {
+                                of_platform_device_create(np, "uni-n-i2c",
+                                                          NULL);
+                                break;
+                        }
+        }
+        np = find_devices("valkyrie");
+        if (np)
+                of_platform_device_create(np, "valkyrie", NULL);
+        np = find_devices("platinum");
+        if (np)
+                of_platform_device_create(np, "platinum", NULL);
+
+        npp = of_find_node_by_name(NULL, "u3");
+        if (npp) {
+                for (np = NULL; (np = of_get_next_child(npp, np)) != NULL;) {
+                        if (strncmp(np->name, "i2c", 3) == 0) {
+                                of_platform_device_create(np, "u3-i2c", NULL);
+                                of_node_put(np);
+                                break;
+                        }
+                }
+                of_node_put(npp);
+        }
+        np = of_find_node_by_type(NULL, "smu");
+        if (np) {
+                of_platform_device_create(np, "smu", NULL);
+                of_node_put(np);
+        }
+
+        return 0;
+}
+
+device_initcall(pmac_declare_of_platform_devices);
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init pmac_probe(int platform)
+{
+#ifdef CONFIG_PPC64
+        if (platform != PLATFORM_POWERMAC)
+                return 0;
+
+        /*
+         * On U3, the DART (iommu) must be allocated now since it
+         * has an impact on htab_initialize (due to the large page it
+         * occupies having to be broken up so the DART itself is not
+         * part of the cacheable linar mapping
+         */
+        alloc_u3_dart_table();
+#endif
+
+#ifdef CONFIG_PMAC_SMU
+        /*
+         * SMU based G5s need some memory below 2Gb, at least the current
+         * driver needs that. We have to allocate it now. We allocate 4k
+         * (1 small page) for now.
+         */
+        smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
+#endif /* CONFIG_PMAC_SMU */
+
+        return 1;
+}
+
+#ifdef CONFIG_PPC64
+static int pmac_probe_mode(struct pci_bus *bus)
+{
+        struct device_node *node = bus->sysdata;
+
+        /* We need to use normal PCI probing for the AGP bus,
+           since the device for the AGP bridge isn't in the tree. */
+        if (bus->self == NULL && device_is_compatible(node, "u3-agp"))
+                return PCI_PROBE_NORMAL;
+
+        return PCI_PROBE_DEVTREE;
+}
+#endif
+
+struct machdep_calls __initdata pmac_md = {
+#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64)
+        .cpu_die                = generic_mach_cpu_die,
+#endif
+        .probe                  = pmac_probe,
+        .setup_arch             = pmac_setup_arch,
+        .init_early             = pmac_init_early,
+        .show_cpuinfo           = pmac_show_cpuinfo,
+        .show_percpuinfo        = pmac_show_percpuinfo,
+        .init_IRQ               = pmac_pic_init,
+        .get_irq                = mpic_get_irq, /* changed later */
+        .pcibios_fixup          = pmac_pcibios_fixup,
+        .restart                = pmac_restart,
+        .power_off              = pmac_power_off,
+        .halt                   = pmac_halt,
+        .time_init              = pmac_time_init,
+        .get_boot_time          = pmac_get_boot_time,
+        .set_rtc_time           = pmac_set_rtc_time,
+        .get_rtc_time           = pmac_get_rtc_time,
+        .calibrate_decr         = pmac_calibrate_decr,
+        .feature_call           = pmac_do_feature_call,
+        .check_legacy_ioport    = pmac_check_legacy_ioport,
+        .progress               = pmac_progress,
+#ifdef CONFIG_PPC64
+        .pci_probe_mode         = pmac_probe_mode,
+        .idle_loop              = native_idle,
+        .enable_pmcs            = power4_enable_pmcs,
+#endif
+#ifdef CONFIG_PPC32
+        .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
+        .pcibios_after_init     = pmac_pcibios_after_init,
+        .phys_mem_access_prot   = pci_phys_mem_access_prot,
+#endif
+};
diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S
new file mode 100644
index 000000000000..22b113d19b24
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/sleep.S
@@ -0,0 +1,396 @@
+/*
+ * This file contains sleep low-level functions for PowerBook G3.
+ *    Copyright (C) 1999 Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *    and Paul Mackerras (paulus@samba.org).
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/ppc_asm.h>
+#include <asm/cputable.h>
+#include <asm/cache.h>
+#include <asm/thread_info.h>
+#include <asm/asm-offsets.h>
+
+#define MAGIC   0x4c617273      /* 'Lars' */
+
+/*
+ * Structure for storing CPU registers on the stack.
+ */
+#define SL_SP           0
+#define SL_PC           4
+#define SL_MSR          8
+#define SL_SDR1         0xc
+#define SL_SPRG0        0x10    /* 4 sprg's */
+#define SL_DBAT0        0x20
+#define SL_IBAT0        0x28
+#define SL_DBAT1        0x30
+#define SL_IBAT1        0x38
+#define SL_DBAT2        0x40
+#define SL_IBAT2        0x48
+#define SL_DBAT3        0x50
+#define SL_IBAT3        0x58
+#define SL_TB           0x60
+#define SL_R2           0x68
+#define SL_CR           0x6c
+#define SL_R12          0x70    /* r12 to r31 */
+#define SL_SIZE         (SL_R12 + 80)
+
+        .section .text
+        .align  5
+
+#if defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ_PMAC)
+
+/* This gets called by via-pmu.c late during the sleep process.
+ * The PMU was already send the sleep command and will shut us down
+ * soon. We need to save all that is needed and setup the wakeup
+ * vector that will be called by the ROM on wakeup
+ */
+_GLOBAL(low_sleep_handler)
+#ifndef CONFIG_6xx
+        blr
+#else
+        mflr    r0
+        stw     r0,4(r1)
+        stwu    r1,-SL_SIZE(r1)
+        mfcr    r0
+        stw     r0,SL_CR(r1)
+        stw     r2,SL_R2(r1)
+        stmw    r12,SL_R12(r1)
+
+        /* Save MSR & SDR1 */
+        mfmsr   r4
+        stw     r4,SL_MSR(r1)
+        mfsdr1  r4
+        stw     r4,SL_SDR1(r1)
+
+        /* Get a stable timebase and save it */
+1:      mftbu   r4
+        stw     r4,SL_TB(r1)
+        mftb    r5
+        stw     r5,SL_TB+4(r1)
+        mftbu   r3
+        cmpw    r3,r4
+        bne     1b
+
+        /* Save SPRGs */
+        mfsprg  r4,0
+        stw     r4,SL_SPRG0(r1)
+        mfsprg  r4,1
+        stw     r4,SL_SPRG0+4(r1)
+        mfsprg  r4,2
+        stw     r4,SL_SPRG0+8(r1)
+        mfsprg  r4,3
+        stw     r4,SL_SPRG0+12(r1)
+
+        /* Save BATs */
+        mfdbatu r4,0
+        stw     r4,SL_DBAT0(r1)
+        mfdbatl r4,0
+        stw     r4,SL_DBAT0+4(r1)
+        mfdbatu r4,1
+        stw     r4,SL_DBAT1(r1)
+        mfdbatl r4,1
+        stw     r4,SL_DBAT1+4(r1)
+        mfdbatu r4,2
+        stw     r4,SL_DBAT2(r1)
+        mfdbatl r4,2
+        stw     r4,SL_DBAT2+4(r1)
+        mfdbatu r4,3
+        stw     r4,SL_DBAT3(r1)
+        mfdbatl r4,3
+        stw     r4,SL_DBAT3+4(r1)
+        mfibatu r4,0
+        stw     r4,SL_IBAT0(r1)
+        mfibatl r4,0
+        stw     r4,SL_IBAT0+4(r1)
+        mfibatu r4,1
+        stw     r4,SL_IBAT1(r1)
+        mfibatl r4,1
+        stw     r4,SL_IBAT1+4(r1)
+        mfibatu r4,2
+        stw     r4,SL_IBAT2(r1)
+        mfibatl r4,2
+        stw     r4,SL_IBAT2+4(r1)
+        mfibatu r4,3
+        stw     r4,SL_IBAT3(r1)
+        mfibatl r4,3
+        stw     r4,SL_IBAT3+4(r1)
+
+        /* Backup various CPU config stuffs */
+        bl      __save_cpu_setup
+
+        /* The ROM can wake us up via 2 different vectors:
+         *  - On wallstreet & lombard, we must write a magic
+         *    value 'Lars' at address 4 and a pointer to a
+         *    memory location containing the PC to resume from
+         *    at address 0.
+         *  - On Core99, we must store the wakeup vector at
+         *    address 0x80 and eventually it's parameters
+         *    at address 0x84. I've have some trouble with those
+         *    parameters however and I no longer use them.
+         */
+        lis     r5,grackle_wake_up@ha
+        addi    r5,r5,grackle_wake_up@l
+        tophys(r5,r5)
+        stw     r5,SL_PC(r1)
+        lis     r4,KERNELBASE@h
+        tophys(r5,r1)
+        addi    r5,r5,SL_PC
+        lis     r6,MAGIC@ha
+        addi    r6,r6,MAGIC@l
+        stw     r5,0(r4)
+        stw     r6,4(r4)
+        /* Setup stuffs at 0x80-0x84 for Core99 */
+        lis     r3,core99_wake_up@ha
+        addi    r3,r3,core99_wake_up@l
+        tophys(r3,r3)
+        stw     r3,0x80(r4)
+        stw     r5,0x84(r4)
+        /* Store a pointer to our backup storage into
+         * a kernel global
+         */
+        lis r3,sleep_storage@ha
+        addi r3,r3,sleep_storage@l
+        stw r5,0(r3)
+
+        .globl  low_cpu_die
+low_cpu_die:
+        /* Flush & disable all caches */
+        bl      flush_disable_caches
+
+        /* Turn off data relocation. */
+        mfmsr   r3              /* Save MSR in r7 */
+        rlwinm  r3,r3,0,28,26   /* Turn off DR bit */
+        sync
+        mtmsr   r3
+        isync
+
+BEGIN_FTR_SECTION
+        /* Flush any pending L2 data prefetches to work around HW bug */
+        sync
+        lis     r3,0xfff0
+        lwz     r0,0(r3)        /* perform cache-inhibited load to ROM */
+        sync                    /* (caches are disabled at this point) */
+END_FTR_SECTION_IFSET(CPU_FTR_SPEC7450)
+
+/*
+ * Set the HID0 and MSR for sleep.
+ */
+        mfspr   r2,SPRN_HID0
+        rlwinm  r2,r2,0,10,7    /* clear doze, nap */
+        oris    r2,r2,HID0_SLEEP@h
+        sync
+        isync
+        mtspr   SPRN_HID0,r2
+        sync
+
+/* This loop puts us back to sleep in case we have a spurrious
+ * wakeup so that the host bridge properly stays asleep. The
+ * CPU will be turned off, either after a known time (about 1
+ * second) on wallstreet & lombard, or as soon as the CPU enters
+ * SLEEP mode on core99
+ */
+        mfmsr   r2
+        oris    r2,r2,MSR_POW@h
+1:      sync
+        mtmsr   r2
+        isync
+        b       1b
+
+/*
+ * Here is the resume code.
+ */
+
+
+/*
+ * Core99 machines resume here
+ * r4 has the physical address of SL_PC(sp) (unused)
+ */
+_GLOBAL(core99_wake_up)
+        /* Make sure HID0 no longer contains any sleep bit and that data cache
+         * is disabled
+         */
+        mfspr   r3,SPRN_HID0
+        rlwinm  r3,r3,0,11,7            /* clear SLEEP, NAP, DOZE bits */
+        rlwinm  3,r3,0,18,15            /* clear DCE, ICE */
+        mtspr   SPRN_HID0,r3
+        sync
+        isync
+
+        /* sanitize MSR */
+        mfmsr   r3
+        ori     r3,r3,MSR_EE|MSR_IP
+        xori    r3,r3,MSR_EE|MSR_IP
+        sync
+        isync
+        mtmsr   r3
+        sync
+        isync
+
+        /* Recover sleep storage */
+        lis     r3,sleep_storage@ha
+        addi    r3,r3,sleep_storage@l
+        tophys(r3,r3)
+        lwz     r1,0(r3)
+
+        /* Pass thru to older resume code ... */
+/*
+ * Here is the resume code for older machines.
+ * r1 has the physical address of SL_PC(sp).
+ */
+
+grackle_wake_up:
+
+        /* Restore the kernel's segment registers before
+         * we do any r1 memory access as we are not sure they
+         * are in a sane state above the first 256Mb region
+         */
+        li      r0,16           /* load up segment register values */
+        mtctr   r0              /* for context 0 */
+        lis     r3,0x2000       /* Ku = 1, VSID = 0 */
+        li      r4,0
+3:      mtsrin  r3,r4
+        addi    r3,r3,0x111     /* increment VSID */
+        addis   r4,r4,0x1000    /* address of next segment */
+        bdnz    3b
+        sync
+        isync
+
+        subi    r1,r1,SL_PC
+
+        /* Restore various CPU config stuffs */
+        bl      __restore_cpu_setup
+
+        /* Make sure all FPRs have been initialized */
+        bl      reloc_offset
+        bl      __init_fpu_registers
+
+        /* Invalidate & enable L1 cache, we don't care about
+         * whatever the ROM may have tried to write to memory
+         */
+        bl      __inval_enable_L1
+
+        /* Restore the BATs, and SDR1.  Then we can turn on the MMU. */
+        lwz     r4,SL_SDR1(r1)
+        mtsdr1  r4
+        lwz     r4,SL_SPRG0(r1)
+        mtsprg  0,r4
+        lwz     r4,SL_SPRG0+4(r1)
+        mtsprg  1,r4
+        lwz     r4,SL_SPRG0+8(r1)
+        mtsprg  2,r4
+        lwz     r4,SL_SPRG0+12(r1)
+        mtsprg  3,r4
+
+        lwz     r4,SL_DBAT0(r1)
+        mtdbatu 0,r4
+        lwz     r4,SL_DBAT0+4(r1)
+        mtdbatl 0,r4
+        lwz     r4,SL_DBAT1(r1)
+        mtdbatu 1,r4
+        lwz     r4,SL_DBAT1+4(r1)
+        mtdbatl 1,r4
+        lwz     r4,SL_DBAT2(r1)
+        mtdbatu 2,r4
+        lwz     r4,SL_DBAT2+4(r1)
+        mtdbatl 2,r4
+        lwz     r4,SL_DBAT3(r1)
+        mtdbatu 3,r4
+        lwz     r4,SL_DBAT3+4(r1)
+        mtdbatl 3,r4
+        lwz     r4,SL_IBAT0(r1)
+        mtibatu 0,r4
+        lwz     r4,SL_IBAT0+4(r1)
+        mtibatl 0,r4
+        lwz     r4,SL_IBAT1(r1)
+        mtibatu 1,r4
+        lwz     r4,SL_IBAT1+4(r1)
+        mtibatl 1,r4
+        lwz     r4,SL_IBAT2(r1)
+        mtibatu 2,r4
+        lwz     r4,SL_IBAT2+4(r1)
+        mtibatl 2,r4
+        lwz     r4,SL_IBAT3(r1)
+        mtibatu 3,r4
+        lwz     r4,SL_IBAT3+4(r1)
+        mtibatl 3,r4
+
+BEGIN_FTR_SECTION
+        li      r4,0
+        mtspr   SPRN_DBAT4U,r4
+        mtspr   SPRN_DBAT4L,r4
+        mtspr   SPRN_DBAT5U,r4
+        mtspr   SPRN_DBAT5L,r4
+        mtspr   SPRN_DBAT6U,r4
+        mtspr   SPRN_DBAT6L,r4
+        mtspr   SPRN_DBAT7U,r4
+        mtspr   SPRN_DBAT7L,r4
+        mtspr   SPRN_IBAT4U,r4
+        mtspr   SPRN_IBAT4L,r4
+        mtspr   SPRN_IBAT5U,r4
+        mtspr   SPRN_IBAT5L,r4
+        mtspr   SPRN_IBAT6U,r4
+        mtspr   SPRN_IBAT6L,r4
+        mtspr   SPRN_IBAT7U,r4
+        mtspr   SPRN_IBAT7L,r4
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
+
+        /* Flush all TLBs */
+        lis     r4,0x1000
+1:      addic.  r4,r4,-0x1000
+        tlbie   r4
+        blt     1b
+        sync
+
+        /* restore the MSR and turn on the MMU */
+        lwz     r3,SL_MSR(r1)
+        bl      turn_on_mmu
+
+        /* get back the stack pointer */
+        tovirt(r1,r1)
+
+        /* Restore TB */
+        li      r3,0
+        mttbl   r3
+        lwz     r3,SL_TB(r1)
+        lwz     r4,SL_TB+4(r1)
+        mttbu   r3
+        mttbl   r4
+
+        /* Restore the callee-saved registers and return */
+        lwz     r0,SL_CR(r1)
+        mtcr    r0
+        lwz     r2,SL_R2(r1)
+        lmw     r12,SL_R12(r1)
+        addi    r1,r1,SL_SIZE
+        lwz     r0,4(r1)
+        mtlr    r0
+        blr
+
+turn_on_mmu:
+        mflr    r4
+        tovirt(r4,r4)
+        mtsrr0  r4
+        mtsrr1  r3
+        sync
+        isync
+        rfi
+
+#endif /* defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ) */
+
+        .section .data
+        .balign L1_CACHE_BYTES
+sleep_storage:
+        .long 0
+        .balign L1_CACHE_BYTES, 0
+
+#endif /* CONFIG_6xx */
+        .section .text
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
new file mode 100644
index 000000000000..e1f9443cc872
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -0,0 +1,865 @@
+/*
+ * SMP support for power macintosh.
+ *
+ * We support both the old "powersurge" SMP architecture
+ * and the current Core99 (G4 PowerMac) machines.
+ *
+ * Note that we don't support the very first rev. of
+ * Apple/DayStar 2 CPUs board, the one with the funky
+ * watchdog. Hopefully, none of these should be there except
+ * maybe internally to Apple. I should probably still add some
+ * code to detect this card though and disable SMP. --BenH.
+ *
+ * Support Macintosh G4 SMP by Troy Benjegerdes (hozer@drgw.net)
+ * and Ben Herrenschmidt <benh@kernel.crashing.org>.
+ *
+ * Support for DayStar quad CPU cards
+ * Copyright (C) XLR8, Inc. 1994-2000
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/hardirq.h>
+#include <linux/cpu.h>
+
+#include <asm/ptrace.h>
+#include <asm/atomic.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/smp.h>
+#include <asm/machdep.h>
+#include <asm/pmac_feature.h>
+#include <asm/time.h>
+#include <asm/mpic.h>
+#include <asm/cacheflush.h>
+#include <asm/keylargo.h>
+#include <asm/pmac_low_i2c.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+extern void __secondary_start_pmac_0(void);
+
+#ifdef CONFIG_PPC32
+
+/* Sync flag for HW tb sync */
+static volatile int sec_tb_reset = 0;
+
+/*
+ * Powersurge (old powermac SMP) support.
+ */
+
+/* Addresses for powersurge registers */
+#define HAMMERHEAD_BASE         0xf8000000
+#define HHEAD_CONFIG            0x90
+#define HHEAD_SEC_INTR          0xc0
+
+/* register for interrupting the primary processor on the powersurge */
+/* N.B. this is actually the ethernet ROM! */
+#define PSURGE_PRI_INTR         0xf3019000
+
+/* register for storing the start address for the secondary processor */
+/* N.B. this is the PCI config space address register for the 1st bridge */
+#define PSURGE_START            0xf2800000
+
+/* Daystar/XLR8 4-CPU card */
+#define PSURGE_QUAD_REG_ADDR    0xf8800000
+
+#define PSURGE_QUAD_IRQ_SET     0
+#define PSURGE_QUAD_IRQ_CLR     1
+#define PSURGE_QUAD_IRQ_PRIMARY 2
+#define PSURGE_QUAD_CKSTOP_CTL  3
+#define PSURGE_QUAD_PRIMARY_ARB 4
+#define PSURGE_QUAD_BOARD_ID    6
+#define PSURGE_QUAD_WHICH_CPU   7
+#define PSURGE_QUAD_CKSTOP_RDBK 8
+#define PSURGE_QUAD_RESET_CTL   11
+
+#define PSURGE_QUAD_OUT(r, v)   (out_8(quad_base + ((r) << 4) + 4, (v)))
+#define PSURGE_QUAD_IN(r)       (in_8(quad_base + ((r) << 4) + 4) & 0x0f)
+#define PSURGE_QUAD_BIS(r, v)   (PSURGE_QUAD_OUT((r), PSURGE_QUAD_IN(r) | (v)))
+#define PSURGE_QUAD_BIC(r, v)   (PSURGE_QUAD_OUT((r), PSURGE_QUAD_IN(r) & ~(v)))
+
+/* virtual addresses for the above */
+static volatile u8 __iomem *hhead_base;
+static volatile u8 __iomem *quad_base;
+static volatile u32 __iomem *psurge_pri_intr;
+static volatile u8 __iomem *psurge_sec_intr;
+static volatile u32 __iomem *psurge_start;
+
+/* values for psurge_type */
+#define PSURGE_NONE             -1
+#define PSURGE_DUAL             0
+#define PSURGE_QUAD_OKEE        1
+#define PSURGE_QUAD_COTTON      2
+#define PSURGE_QUAD_ICEGRASS    3
+
+/* what sort of powersurge board we have */
+static int psurge_type = PSURGE_NONE;
+
+/*
+ * Set and clear IPIs for powersurge.
+ */
+static inline void psurge_set_ipi(int cpu)
+{
+        if (psurge_type == PSURGE_NONE)
+                return;
+        if (cpu == 0)
+                in_be32(psurge_pri_intr);
+        else if (psurge_type == PSURGE_DUAL)
+                out_8(psurge_sec_intr, 0);
+        else
+                PSURGE_QUAD_OUT(PSURGE_QUAD_IRQ_SET, 1 << cpu);
+}
+
+static inline void psurge_clr_ipi(int cpu)
+{
+        if (cpu > 0) {
+                switch(psurge_type) {
+                case PSURGE_DUAL:
+                        out_8(psurge_sec_intr, ~0);
+                case PSURGE_NONE:
+                        break;
+                default:
+                        PSURGE_QUAD_OUT(PSURGE_QUAD_IRQ_CLR, 1 << cpu);
+                }
+        }
+}
+
+/*
+ * On powersurge (old SMP powermac architecture) we don't have
+ * separate IPIs for separate messages like openpic does.  Instead
+ * we have a bitmap for each processor, where a 1 bit means that
+ * the corresponding message is pending for that processor.
+ * Ideally each cpu's entry would be in a different cache line.
+ *  -- paulus.
+ */
+static unsigned long psurge_smp_message[NR_CPUS];
+
+void psurge_smp_message_recv(struct pt_regs *regs)
+{
+        int cpu = smp_processor_id();
+        int msg;
+
+        /* clear interrupt */
+        psurge_clr_ipi(cpu);
+
+        if (num_online_cpus() < 2)
+                return;
+
+        /* make sure there is a message there */
+        for (msg = 0; msg < 4; msg++)
+                if (test_and_clear_bit(msg, &psurge_smp_message[cpu]))
+                        smp_message_recv(msg, regs);
+}
+
+irqreturn_t psurge_primary_intr(int irq, void *d, struct pt_regs *regs)
+{
+        psurge_smp_message_recv(regs);
+        return IRQ_HANDLED;
+}
+
+static void smp_psurge_message_pass(int target, int msg)
+{
+        int i;
+
+        if (num_online_cpus() < 2)
+                return;
+
+        for (i = 0; i < NR_CPUS; i++) {
+                if (!cpu_online(i))
+                        continue;
+                if (target == MSG_ALL
+                    || (target == MSG_ALL_BUT_SELF && i != smp_processor_id())
+                    || target == i) {
+                        set_bit(msg, &psurge_smp_message[i]);
+                        psurge_set_ipi(i);
+                }
+        }
+}
+
+/*
+ * Determine a quad card presence. We read the board ID register, we
+ * force the data bus to change to something else, and we read it again.
+ * It it's stable, then the register probably exist (ugh !)
+ */
+static int __init psurge_quad_probe(void)
+{
+        int type;
+        unsigned int i;
+
+        type = PSURGE_QUAD_IN(PSURGE_QUAD_BOARD_ID);
+        if (type < PSURGE_QUAD_OKEE || type > PSURGE_QUAD_ICEGRASS
+            || type != PSURGE_QUAD_IN(PSURGE_QUAD_BOARD_ID))
+                return PSURGE_DUAL;
+
+        /* looks OK, try a slightly more rigorous test */
+        /* bogus is not necessarily cacheline-aligned,
+           though I don't suppose that really matters.  -- paulus */
+        for (i = 0; i < 100; i++) {
+                volatile u32 bogus[8];
+                bogus[(0+i)%8] = 0x00000000;
+                bogus[(1+i)%8] = 0x55555555;
+                bogus[(2+i)%8] = 0xFFFFFFFF;
+                bogus[(3+i)%8] = 0xAAAAAAAA;
+                bogus[(4+i)%8] = 0x33333333;
+                bogus[(5+i)%8] = 0xCCCCCCCC;
+                bogus[(6+i)%8] = 0xCCCCCCCC;
+                bogus[(7+i)%8] = 0x33333333;
+                wmb();
+                asm volatile("dcbf 0,%0" : : "r" (bogus) : "memory");
+                mb();
+                if (type != PSURGE_QUAD_IN(PSURGE_QUAD_BOARD_ID))
+                        return PSURGE_DUAL;
+        }
+        return type;
+}
+
+static void __init psurge_quad_init(void)
+{
+        int procbits;
+
+        if (ppc_md.progress) ppc_md.progress("psurge_quad_init", 0x351);
+        procbits = ~PSURGE_QUAD_IN(PSURGE_QUAD_WHICH_CPU);
+        if (psurge_type == PSURGE_QUAD_ICEGRASS)
+                PSURGE_QUAD_BIS(PSURGE_QUAD_RESET_CTL, procbits);
+        else
+                PSURGE_QUAD_BIC(PSURGE_QUAD_CKSTOP_CTL, procbits);
+        mdelay(33);
+        out_8(psurge_sec_intr, ~0);
+        PSURGE_QUAD_OUT(PSURGE_QUAD_IRQ_CLR, procbits);
+        PSURGE_QUAD_BIS(PSURGE_QUAD_RESET_CTL, procbits);
+        if (psurge_type != PSURGE_QUAD_ICEGRASS)
+                PSURGE_QUAD_BIS(PSURGE_QUAD_CKSTOP_CTL, procbits);
+        PSURGE_QUAD_BIC(PSURGE_QUAD_PRIMARY_ARB, procbits);
+        mdelay(33);
+        PSURGE_QUAD_BIC(PSURGE_QUAD_RESET_CTL, procbits);
+        mdelay(33);
+        PSURGE_QUAD_BIS(PSURGE_QUAD_PRIMARY_ARB, procbits);
+        mdelay(33);
+}
+
+static int __init smp_psurge_probe(void)
+{
+        int i, ncpus;
+
+        /* We don't do SMP on the PPC601 -- paulus */
+        if (PVR_VER(mfspr(SPRN_PVR)) == 1)
+                return 1;
+
+        /*
+         * The powersurge cpu board can be used in the generation
+         * of powermacs that have a socket for an upgradeable cpu card,
+         * including the 7500, 8500, 9500, 9600.
+         * The device tree doesn't tell you if you have 2 cpus because
+         * OF doesn't know anything about the 2nd processor.
+         * Instead we look for magic bits in magic registers,
+         * in the hammerhead memory controller in the case of the
+         * dual-cpu powersurge board.  -- paulus.
+         */
+        if (find_devices("hammerhead") == NULL)
+                return 1;
+
+        hhead_base = ioremap(HAMMERHEAD_BASE, 0x800);
+        quad_base = ioremap(PSURGE_QUAD_REG_ADDR, 1024);
+        psurge_sec_intr = hhead_base + HHEAD_SEC_INTR;
+
+        psurge_type = psurge_quad_probe();
+        if (psurge_type != PSURGE_DUAL) {
+                psurge_quad_init();
+                /* All released cards using this HW design have 4 CPUs */
+                ncpus = 4;
+        } else {
+                iounmap(quad_base);
+                if ((in_8(hhead_base + HHEAD_CONFIG) & 0x02) == 0) {
+                        /* not a dual-cpu card */
+                        iounmap(hhead_base);
+                        psurge_type = PSURGE_NONE;
+                        return 1;
+                }
+                ncpus = 2;
+        }
+
+        psurge_start = ioremap(PSURGE_START, 4);
+        psurge_pri_intr = ioremap(PSURGE_PRI_INTR, 4);
+
+        /* this is not actually strictly necessary -- paulus. */
+        for (i = 1; i < ncpus; ++i)
+                smp_hw_index[i] = i;
+
+        if (ppc_md.progress) ppc_md.progress("smp_psurge_probe - done", 0x352);
+
+        return ncpus;
+}
+
+static void __init smp_psurge_kick_cpu(int nr)
+{
+        unsigned long start = __pa(__secondary_start_pmac_0) + nr * 8;
+        unsigned long a;
+
+        /* may need to flush here if secondary bats aren't setup */
+        for (a = KERNELBASE; a < KERNELBASE + 0x800000; a += 32)
+                asm volatile("dcbf 0,%0" : : "r" (a) : "memory");
+        asm volatile("sync");
+
+        if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu", 0x353);
+
+        out_be32(psurge_start, start);
+        mb();
+
+        psurge_set_ipi(nr);
+        udelay(10);
+        psurge_clr_ipi(nr);
+
+        if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354);
+}
+
+/*
+ * With the dual-cpu powersurge board, the decrementers and timebases
+ * of both cpus are frozen after the secondary cpu is started up,
+ * until we give the secondary cpu another interrupt.  This routine
+ * uses this to get the timebases synchronized.
+ *  -- paulus.
+ */
+static void __init psurge_dual_sync_tb(int cpu_nr)
+{
+        int t;
+
+        set_dec(tb_ticks_per_jiffy);
+        set_tb(0, 0);
+        last_jiffy_stamp(cpu_nr) = 0;
+
+        if (cpu_nr > 0) {
+                mb();
+                sec_tb_reset = 1;
+                return;
+        }
+
+        /* wait for the secondary to have reset its TB before proceeding */
+        for (t = 10000000; t > 0 && !sec_tb_reset; --t)
+                ;
+
+        /* now interrupt the secondary, starting both TBs */
+        psurge_set_ipi(1);
+
+        smp_tb_synchronized = 1;
+}
+
+static struct irqaction psurge_irqaction = {
+        .handler = psurge_primary_intr,
+        .flags = SA_INTERRUPT,
+        .mask = CPU_MASK_NONE,
+        .name = "primary IPI",
+};
+
+static void __init smp_psurge_setup_cpu(int cpu_nr)
+{
+
+        if (cpu_nr == 0) {
+                /* If we failed to start the second CPU, we should still
+                 * send it an IPI to start the timebase & DEC or we might
+                 * have them stuck.
+                 */
+                if (num_online_cpus() < 2) {
+                        if (psurge_type == PSURGE_DUAL)
+                                psurge_set_ipi(1);
+                        return;
+                }
+                /* reset the entry point so if we get another intr we won't
+                 * try to startup again */
+                out_be32(psurge_start, 0x100);
+                if (setup_irq(30, &psurge_irqaction))
+                        printk(KERN_ERR "Couldn't get primary IPI interrupt");
+        }
+
+        if (psurge_type == PSURGE_DUAL)
+                psurge_dual_sync_tb(cpu_nr);
+}
+
+void __init smp_psurge_take_timebase(void)
+{
+        /* Dummy implementation */
+}
+
+void __init smp_psurge_give_timebase(void)
+{
+        /* Dummy implementation */
+}
+
+/* PowerSurge-style Macs */
+struct smp_ops_t psurge_smp_ops = {
+        .message_pass   = smp_psurge_message_pass,
+        .probe          = smp_psurge_probe,
+        .kick_cpu       = smp_psurge_kick_cpu,
+        .setup_cpu      = smp_psurge_setup_cpu,
+        .give_timebase  = smp_psurge_give_timebase,
+        .take_timebase  = smp_psurge_take_timebase,
+};
+#endif /* CONFIG_PPC32 - actually powersurge support */
+
+#ifdef CONFIG_PPC64
+/*
+ * G5s enable/disable the timebase via an i2c-connected clock chip.
+ */
+static struct device_node *pmac_tb_clock_chip_host;
+static u8 pmac_tb_pulsar_addr;
+static void (*pmac_tb_freeze)(int freeze);
+static DEFINE_SPINLOCK(timebase_lock);
+static unsigned long timebase;
+
+static void smp_core99_cypress_tb_freeze(int freeze)
+{
+        u8 data;
+        int rc;
+
+        /* Strangely, the device-tree says address is 0xd2, but darwin
+         * accesses 0xd0 ...
+         */
+        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
+        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
+                               0xd0 | pmac_low_i2c_read,
+                               0x81, &data, 1);
+        if (rc != 0)
+                goto bail;
+
+        data = (data & 0xf3) | (freeze ? 0x00 : 0x0c);
+
+        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
+        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
+                               0xd0 | pmac_low_i2c_write,
+                               0x81, &data, 1);
+
+ bail:
+        if (rc != 0) {
+                printk("Cypress Timebase %s rc: %d\n",
+                       freeze ? "freeze" : "unfreeze", rc);
+                panic("Timebase freeze failed !\n");
+        }
+}
+
+
+static void smp_core99_pulsar_tb_freeze(int freeze)
+{
+        u8 data;
+        int rc;
+
+        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
+        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
+                               pmac_tb_pulsar_addr | pmac_low_i2c_read,
+                               0x2e, &data, 1);
+        if (rc != 0)
+                goto bail;
+
+        data = (data & 0x88) | (freeze ? 0x11 : 0x22);
+
+        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
+        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
+                               pmac_tb_pulsar_addr | pmac_low_i2c_write,
+                               0x2e, &data, 1);
+ bail:
+        if (rc != 0) {
+                printk(KERN_ERR "Pulsar Timebase %s rc: %d\n",
+                       freeze ? "freeze" : "unfreeze", rc);
+                panic("Timebase freeze failed !\n");
+        }
+}
+
+
+static void smp_core99_give_timebase(void)
+{
+        /* Open i2c bus for synchronous access */
+        if (pmac_low_i2c_open(pmac_tb_clock_chip_host, 0))
+                panic("Can't open i2c for TB sync !\n");
+
+        spin_lock(&timebase_lock);
+        (*pmac_tb_freeze)(1);
+        mb();
+        timebase = get_tb();
+        spin_unlock(&timebase_lock);
+
+        while (timebase)
+                barrier();
+
+        spin_lock(&timebase_lock);
+        (*pmac_tb_freeze)(0);
+        spin_unlock(&timebase_lock);
+
+        /* Close i2c bus */
+        pmac_low_i2c_close(pmac_tb_clock_chip_host);
+}
+
+
+static void __devinit smp_core99_take_timebase(void)
+{
+        while (!timebase)
+                barrier();
+        spin_lock(&timebase_lock);
+        set_tb(timebase >> 32, timebase & 0xffffffff);
+        timebase = 0;
+        spin_unlock(&timebase_lock);
+}
+
+static void __init smp_core99_setup(int ncpus)
+{
+        struct device_node *cc = NULL;  
+        struct device_node *p;
+        u32 *reg;
+        int ok;
+
+        /* HW sync only on these platforms */
+        if (!machine_is_compatible("PowerMac7,2") &&
+            !machine_is_compatible("PowerMac7,3") &&
+            !machine_is_compatible("RackMac3,1"))
+                return;
+
+        /* Look for the clock chip */
+        while ((cc = of_find_node_by_name(cc, "i2c-hwclock")) != NULL) {
+                p = of_get_parent(cc);
+                ok = p && device_is_compatible(p, "uni-n-i2c");
+                of_node_put(p);
+                if (!ok)
+                        continue;
+
+                reg = (u32 *)get_property(cc, "reg", NULL);
+                if (reg == NULL)
+                        continue;
+
+                switch (*reg) {
+                case 0xd2:
+                        if (device_is_compatible(cc, "pulsar-legacy-slewing")) {
+                                pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
+                                pmac_tb_pulsar_addr = 0xd2;
+                                printk(KERN_INFO "Timebase clock is Pulsar chip\n");
+                        } else if (device_is_compatible(cc, "cy28508")) {
+                                pmac_tb_freeze = smp_core99_cypress_tb_freeze;
+                                printk(KERN_INFO "Timebase clock is Cypress chip\n");
+                        }
+                        break;
+                case 0xd4:
+                        pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
+                        pmac_tb_pulsar_addr = 0xd4;
+                        printk(KERN_INFO "Timebase clock is Pulsar chip\n");
+                        break;
+                }
+                if (pmac_tb_freeze != NULL) {
+                        pmac_tb_clock_chip_host = of_get_parent(cc);
+                        of_node_put(cc);
+                        break;
+                }
+        }
+        if (pmac_tb_freeze == NULL) {
+                smp_ops->give_timebase = smp_generic_give_timebase;
+                smp_ops->take_timebase = smp_generic_take_timebase;
+        }
+}
+
+/* nothing to do here, caches are already set up by service processor */
+static inline void __devinit core99_init_caches(int cpu)
+{
+}
+
+#else /* CONFIG_PPC64 */
+
+/*
+ * SMP G4 powermacs use a GPIO to enable/disable the timebase.
+ */
+
+static unsigned int core99_tb_gpio;     /* Timebase freeze GPIO */
+
+static unsigned int pri_tb_hi, pri_tb_lo;
+static unsigned int pri_tb_stamp;
+
+/* not __init, called in sleep/wakeup code */
+void smp_core99_give_timebase(void)
+{
+        unsigned long flags;
+        unsigned int t;
+
+        /* wait for the secondary to be in take_timebase */
+        for (t = 100000; t > 0 && !sec_tb_reset; --t)
+                udelay(10);
+        if (!sec_tb_reset) {
+                printk(KERN_WARNING "Timeout waiting sync on second CPU\n");
+                return;
+        }
+
+        /* freeze the timebase and read it */
+        /* disable interrupts so the timebase is disabled for the
+           shortest possible time */
+        local_irq_save(flags);
+        pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, core99_tb_gpio, 4);
+        pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, core99_tb_gpio, 0);
+        mb();
+        pri_tb_hi = get_tbu();
+        pri_tb_lo = get_tbl();
+        pri_tb_stamp = last_jiffy_stamp(smp_processor_id());
+        mb();
+
+        /* tell the secondary we're ready */
+        sec_tb_reset = 2;
+        mb();
+
+        /* wait for the secondary to have taken it */
+        for (t = 100000; t > 0 && sec_tb_reset; --t)
+                udelay(10);
+        if (sec_tb_reset)
+                printk(KERN_WARNING "Timeout waiting sync(2) on second CPU\n");
+        else
+                smp_tb_synchronized = 1;
+
+        /* Now, restart the timebase by leaving the GPIO to an open collector */
+        pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, core99_tb_gpio, 0);
+        pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, core99_tb_gpio, 0);
+        local_irq_restore(flags);
+}
+
+/* not __init, called in sleep/wakeup code */
+void smp_core99_take_timebase(void)
+{
+        unsigned long flags;
+
+        /* tell the primary we're here */
+        sec_tb_reset = 1;
+        mb();
+
+        /* wait for the primary to set pri_tb_hi/lo */
+        while (sec_tb_reset < 2)
+                mb();
+
+        /* set our stuff the same as the primary */
+        local_irq_save(flags);
+        set_dec(1);
+        set_tb(pri_tb_hi, pri_tb_lo);
+        last_jiffy_stamp(smp_processor_id()) = pri_tb_stamp;
+        mb();
+
+        /* tell the primary we're done */
+        sec_tb_reset = 0;
+        mb();
+        local_irq_restore(flags);
+}
+
+/* L2 and L3 cache settings to pass from CPU0 to CPU1 on G4 cpus */
+volatile static long int core99_l2_cache;
+volatile static long int core99_l3_cache;
+
+static void __devinit core99_init_caches(int cpu)
+{
+        if (!cpu_has_feature(CPU_FTR_L2CR))
+                return;
+
+        if (cpu == 0) {
+                core99_l2_cache = _get_L2CR();
+                printk("CPU0: L2CR is %lx\n", core99_l2_cache);
+        } else {
+                printk("CPU%d: L2CR was %lx\n", cpu, _get_L2CR());
+                _set_L2CR(0);
+                _set_L2CR(core99_l2_cache);
+                printk("CPU%d: L2CR set to %lx\n", cpu, core99_l2_cache);
+        }
+
+        if (!cpu_has_feature(CPU_FTR_L3CR))
+                return;
+
+        if (cpu == 0){
+                core99_l3_cache = _get_L3CR();
+                printk("CPU0: L3CR is %lx\n", core99_l3_cache);
+        } else {
+                printk("CPU%d: L3CR was %lx\n", cpu, _get_L3CR());
+                _set_L3CR(0);
+                _set_L3CR(core99_l3_cache);
+                printk("CPU%d: L3CR set to %lx\n", cpu, core99_l3_cache);
+        }
+}
+
+static void __init smp_core99_setup(int ncpus)
+{
+        struct device_node *cpu;
+        u32 *tbprop = NULL;
+        int i;
+
+        core99_tb_gpio = KL_GPIO_TB_ENABLE;     /* default value */
+        cpu = of_find_node_by_type(NULL, "cpu");
+        if (cpu != NULL) {
+                tbprop = (u32 *)get_property(cpu, "timebase-enable", NULL);
+                if (tbprop)
+                        core99_tb_gpio = *tbprop;
+                of_node_put(cpu);
+        }
+
+        /* XXX should get this from reg properties */
+        for (i = 1; i < ncpus; ++i)
+                smp_hw_index[i] = i;
+        powersave_nap = 0;
+}
+#endif
+
+static int __init smp_core99_probe(void)
+{
+        struct device_node *cpus;
+        int ncpus = 0;
+
+        if (ppc_md.progress) ppc_md.progress("smp_core99_probe", 0x345);
+
+        /* Count CPUs in the device-tree */
+        for (cpus = NULL; (cpus = of_find_node_by_type(cpus, "cpu")) != NULL;)
+                ++ncpus;
+
+        printk(KERN_INFO "PowerMac SMP probe found %d cpus\n", ncpus);
+
+        /* Nothing more to do if less than 2 of them */
+        if (ncpus <= 1)
+                return 1;
+
+        smp_core99_setup(ncpus);
+        mpic_request_ipis();
+        core99_init_caches(0);
+
+        return ncpus;
+}
+
+static void __devinit smp_core99_kick_cpu(int nr)
+{
+        unsigned int save_vector;
+        unsigned long new_vector;
+        unsigned long flags;
+        volatile unsigned int *vector
+                 = ((volatile unsigned int *)(KERNELBASE+0x100));
+
+        if (nr < 0 || nr > 3)
+                return;
+        if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu", 0x346);
+
+        local_irq_save(flags);
+        local_irq_disable();
+
+        /* Save reset vector */
+        save_vector = *vector;
+
+        /* Setup fake reset vector that does    
+         *   b __secondary_start_pmac_0 + nr*8 - KERNELBASE
+         */
+        new_vector = (unsigned long) __secondary_start_pmac_0 + nr * 8;
+        *vector = 0x48000002 + new_vector - KERNELBASE;
+
+        /* flush data cache and inval instruction cache */
+        flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
+
+        /* Put some life in our friend */
+        pmac_call_feature(PMAC_FTR_RESET_CPU, NULL, nr, 0);
+
+        /* FIXME: We wait a bit for the CPU to take the exception, I should
+         * instead wait for the entry code to set something for me. Well,
+         * ideally, all that crap will be done in prom.c and the CPU left
+         * in a RAM-based wait loop like CHRP.
+         */
+        mdelay(1);
+
+        /* Restore our exception vector */
+        *vector = save_vector;
+        flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
+
+        local_irq_restore(flags);
+        if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347);
+}
+
+static void __devinit smp_core99_setup_cpu(int cpu_nr)
+{
+        /* Setup L2/L3 */
+        if (cpu_nr != 0)
+                core99_init_caches(cpu_nr);
+
+        /* Setup openpic */
+        mpic_setup_this_cpu();
+
+        if (cpu_nr == 0) {
+#ifdef CONFIG_POWER4
+                extern void g5_phy_disable_cpu1(void);
+
+                /* If we didn't start the second CPU, we must take
+                 * it off the bus
+                 */
+                if (machine_is_compatible("MacRISC4") &&
+                    num_online_cpus() < 2)              
+                        g5_phy_disable_cpu1();
+#endif /* CONFIG_POWER4 */
+                if (ppc_md.progress) ppc_md.progress("core99_setup_cpu 0 done", 0x349);
+        }
+}
+
+
+/* Core99 Macs (dual G4s and G5s) */
+struct smp_ops_t core99_smp_ops = {
+        .message_pass   = smp_mpic_message_pass,
+        .probe          = smp_core99_probe,
+        .kick_cpu       = smp_core99_kick_cpu,
+        .setup_cpu      = smp_core99_setup_cpu,
+        .give_timebase  = smp_core99_give_timebase,
+        .take_timebase  = smp_core99_take_timebase,
+};
+
+#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
+
+int __cpu_disable(void)
+{
+        cpu_clear(smp_processor_id(), cpu_online_map);
+
+        /* XXX reset cpu affinity here */
+        mpic_cpu_set_priority(0xf);
+        asm volatile("mtdec %0" : : "r" (0x7fffffff));
+        mb();
+        udelay(20);
+        asm volatile("mtdec %0" : : "r" (0x7fffffff));
+        return 0;
+}
+
+extern void low_cpu_die(void) __attribute__((noreturn)); /* in sleep.S */
+static int cpu_dead[NR_CPUS];
+
+void cpu_die(void)
+{
+        local_irq_disable();
+        cpu_dead[smp_processor_id()] = 1;
+        mb();
+        low_cpu_die();
+}
+
+void __cpu_die(unsigned int cpu)
+{
+        int timeout;
+
+        timeout = 1000;
+        while (!cpu_dead[cpu]) {
+                if (--timeout == 0) {
+                        printk("CPU %u refused to die!\n", cpu);
+                        break;
+                }
+                msleep(1);
+        }
+        cpu_callin_map[cpu] = 0;
+        cpu_dead[cpu] = 0;
+}
+
+#endif
diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c
new file mode 100644
index 000000000000..5947b21a8588
--- /dev/null
+++ b/arch/powerpc/platforms/powermac/time.c
@@ -0,0 +1,360 @@
+/*
+ * Support for periodic interrupts (100 per second) and for getting
+ * the current time from the RTC on Power Macintoshes.
+ *
+ * We use the decrementer register for our periodic interrupts.
+ *
+ * Paul Mackerras       August 1996.
+ * Copyright (C) 1996 Paul Mackerras.
+ * Copyright (C) 2003-2005 Benjamin Herrenschmidt.
+ *
+ */
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/adb.h>
+#include <linux/cuda.h>
+#include <linux/pmu.h>
+#include <linux/interrupt.h>
+#include <linux/hardirq.h>
+#include <linux/rtc.h>
+
+#include <asm/sections.h>
+#include <asm/prom.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/machdep.h>
+#include <asm/time.h>
+#include <asm/nvram.h>
+#include <asm/smu.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+/* Apparently the RTC stores seconds since 1 Jan 1904 */
+#define RTC_OFFSET      2082844800
+
+/*
+ * Calibrate the decrementer frequency with the VIA timer 1.
+ */
+#define VIA_TIMER_FREQ_6        4700000 /* time 1 frequency * 6 */
+
+/* VIA registers */
+#define RS              0x200           /* skip between registers */
+#define T1CL            (4*RS)          /* Timer 1 ctr/latch (low 8 bits) */
+#define T1CH            (5*RS)          /* Timer 1 counter (high 8 bits) */
+#define T1LL            (6*RS)          /* Timer 1 latch (low 8 bits) */
+#define T1LH            (7*RS)          /* Timer 1 latch (high 8 bits) */
+#define ACR             (11*RS)         /* Auxiliary control register */
+#define IFR             (13*RS)         /* Interrupt flag register */
+
+/* Bits in ACR */
+#define T1MODE          0xc0            /* Timer 1 mode */
+#define T1MODE_CONT     0x40            /*  continuous interrupts */
+
+/* Bits in IFR and IER */
+#define T1_INT          0x40            /* Timer 1 interrupt */
+
+long __init pmac_time_init(void)
+{
+        s32 delta = 0;
+#ifdef CONFIG_NVRAM
+        int dst;
+        
+        delta = ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x9)) << 16;
+        delta |= ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xa)) << 8;
+        delta |= pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xb);
+        if (delta & 0x00800000UL)
+                delta |= 0xFF000000UL;
+        dst = ((pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x8) & 0x80) != 0);
+        printk("GMT Delta read from XPRAM: %d minutes, DST: %s\n", delta/60,
+                dst ? "on" : "off");
+#endif
+        return delta;
+}
+
+static void to_rtc_time(unsigned long now, struct rtc_time *tm)
+{
+        to_tm(now, tm);
+        tm->tm_year -= 1900;
+        tm->tm_mon -= 1;
+}
+
+static unsigned long from_rtc_time(struct rtc_time *tm)
+{
+        return mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
+                      tm->tm_hour, tm->tm_min, tm->tm_sec);
+}
+
+#ifdef CONFIG_ADB_CUDA
+static unsigned long cuda_get_time(void)
+{
+        struct adb_request req;
+        unsigned long now;
+
+        if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
+                return 0;
+        while (!req.complete)
+                cuda_poll();
+        if (req.reply_len != 7)
+                printk(KERN_ERR "cuda_get_time: got %d byte reply\n",
+                       req.reply_len);
+        now = (req.reply[3] << 24) + (req.reply[4] << 16)
+                + (req.reply[5] << 8) + req.reply[6];
+        return now - RTC_OFFSET;
+}
+
+#define cuda_get_rtc_time(tm)   to_rtc_time(cuda_get_time(), (tm))
+
+static int cuda_set_rtc_time(struct rtc_time *tm)
+{
+        unsigned int nowtime;
+        struct adb_request req;
+
+        nowtime = from_rtc_time(tm) + RTC_OFFSET;
+        if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME,
+                         nowtime >> 24, nowtime >> 16, nowtime >> 8,
+                         nowtime) < 0)
+                return -ENXIO;
+        while (!req.complete)
+                cuda_poll();
+        if ((req.reply_len != 3) && (req.reply_len != 7))
+                printk(KERN_ERR "cuda_set_rtc_time: got %d byte reply\n",
+                       req.reply_len);
+        return 0;
+}
+
+#else
+#define cuda_get_time()         0
+#define cuda_get_rtc_time(tm)
+#define cuda_set_rtc_time(tm)   0
+#endif
+
+#ifdef CONFIG_ADB_PMU
+static unsigned long pmu_get_time(void)
+{
+        struct adb_request req;
+        unsigned long now;
+
+        if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
+                return 0;
+        pmu_wait_complete(&req);
+        if (req.reply_len != 4)
+                printk(KERN_ERR "pmu_get_time: got %d byte reply from PMU\n",
+                       req.reply_len);
+        now = (req.reply[0] << 24) + (req.reply[1] << 16)
+                + (req.reply[2] << 8) + req.reply[3];
+        return now - RTC_OFFSET;
+}
+
+#define pmu_get_rtc_time(tm)    to_rtc_time(pmu_get_time(), (tm))
+
+static int pmu_set_rtc_time(struct rtc_time *tm)
+{
+        unsigned int nowtime;
+        struct adb_request req;
+
+        nowtime = from_rtc_time(tm) + RTC_OFFSET;
+        if (pmu_request(&req, NULL, 5, PMU_SET_RTC, nowtime >> 24,
+                        nowtime >> 16, nowtime >> 8, nowtime) < 0)
+                return -ENXIO;
+        pmu_wait_complete(&req);
+        if (req.reply_len != 0)
+                printk(KERN_ERR "pmu_set_rtc_time: %d byte reply from PMU\n",
+                       req.reply_len);
+        return 0;
+}
+
+#else
+#define pmu_get_time()          0
+#define pmu_get_rtc_time(tm)
+#define pmu_set_rtc_time(tm)    0
+#endif
+
+#ifdef CONFIG_PMAC_SMU
+static unsigned long smu_get_time(void)
+{
+        struct rtc_time tm;
+
+        if (smu_get_rtc_time(&tm, 1))
+                return 0;
+        return from_rtc_time(&tm);
+}
+
+#else
+#define smu_get_time()                  0
+#define smu_get_rtc_time(tm, spin)
+#define smu_set_rtc_time(tm, spin)      0
+#endif
+
+unsigned long pmac_get_boot_time(void)
+{
+        /* Get the time from the RTC, used only at boot time */
+        switch (sys_ctrler) {
+        case SYS_CTRLER_CUDA:
+                return cuda_get_time();
+        case SYS_CTRLER_PMU:
+                return pmu_get_time();
+        case SYS_CTRLER_SMU:
+                return smu_get_time();
+        default:
+                return 0;
+        }
+}
+
+void pmac_get_rtc_time(struct rtc_time *tm)
+{
+        /* Get the time from the RTC, used only at boot time */
+        switch (sys_ctrler) {
+        case SYS_CTRLER_CUDA:
+                cuda_get_rtc_time(tm);
+                break;
+        case SYS_CTRLER_PMU:
+                pmu_get_rtc_time(tm);
+                break;
+        case SYS_CTRLER_SMU:
+                smu_get_rtc_time(tm, 1);
+                break;
+        default:
+                ;
+        }
+}
+
+int pmac_set_rtc_time(struct rtc_time *tm)
+{
+        switch (sys_ctrler) {
+        case SYS_CTRLER_CUDA:
+                return cuda_set_rtc_time(tm);
+        case SYS_CTRLER_PMU:
+                return pmu_set_rtc_time(tm);
+        case SYS_CTRLER_SMU:
+                return smu_set_rtc_time(tm, 1);
+        default:
+                return -ENODEV;
+        }
+}
+
+#ifdef CONFIG_PPC32
+/*
+ * Calibrate the decrementer register using VIA timer 1.
+ * This is used both on powermacs and CHRP machines.
+ */
+int __init via_calibrate_decr(void)
+{
+        struct device_node *vias;
+        volatile unsigned char __iomem *via;
+        int count = VIA_TIMER_FREQ_6 / 100;
+        unsigned int dstart, dend;
+
+        vias = find_devices("via-cuda");
+        if (vias == 0)
+                vias = find_devices("via-pmu");
+        if (vias == 0)
+                vias = find_devices("via");
+        if (vias == 0 || vias->n_addrs == 0)
+                return 0;
+        via = ioremap(vias->addrs[0].address, vias->addrs[0].size);
+
+        /* set timer 1 for continuous interrupts */
+        out_8(&via[ACR], (via[ACR] & ~T1MODE) | T1MODE_CONT);
+        /* set the counter to a small value */
+        out_8(&via[T1CH], 2);
+        /* set the latch to `count' */
+        out_8(&via[T1LL], count);
+        out_8(&via[T1LH], count >> 8);
+        /* wait until it hits 0 */
+        while ((in_8(&via[IFR]) & T1_INT) == 0)
+                ;
+        dstart = get_dec();
+        /* clear the interrupt & wait until it hits 0 again */
+        in_8(&via[T1CL]);
+        while ((in_8(&via[IFR]) & T1_INT) == 0)
+                ;
+        dend = get_dec();
+
+        ppc_tb_freq = (dstart - dend) * 100 / 6;
+
+        iounmap(via);
+        
+        return 1;
+}
+#endif
+
+#ifdef CONFIG_PM
+/*
+ * Reset the time after a sleep.
+ */
+static int
+time_sleep_notify(struct pmu_sleep_notifier *self, int when)
+{
+        static unsigned long time_diff;
+        unsigned long flags;
+        unsigned long seq;
+        struct timespec tv;
+
+        switch (when) {
+        case PBOOK_SLEEP_NOW:
+                do {
+                        seq = read_seqbegin_irqsave(&xtime_lock, flags);
+                        time_diff = xtime.tv_sec - pmac_get_boot_time();
+                } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
+                break;
+        case PBOOK_WAKE:
+                tv.tv_sec = pmac_get_boot_time() + time_diff;
+                tv.tv_nsec = 0;
+                do_settimeofday(&tv);
+                break;
+        }
+        return PBOOK_SLEEP_OK;
+}
+
+static struct pmu_sleep_notifier time_sleep_notifier = {
+        time_sleep_notify, SLEEP_LEVEL_MISC,
+};
+#endif /* CONFIG_PM */
+
+/*
+ * Query the OF and get the decr frequency.
+ */
+void __init pmac_calibrate_decr(void)
+{
+#ifdef CONFIG_PM
+        /* XXX why here? */
+        pmu_register_sleep_notifier(&time_sleep_notifier);
+#endif /* CONFIG_PM */
+
+        generic_calibrate_decr();
+
+#ifdef CONFIG_PPC32
+        /* We assume MacRISC2 machines have correct device-tree
+         * calibration. That's better since the VIA itself seems
+         * to be slightly off. --BenH
+         */
+        if (!machine_is_compatible("MacRISC2") &&
+            !machine_is_compatible("MacRISC3") &&
+            !machine_is_compatible("MacRISC4"))
+                if (via_calibrate_decr())
+                        return;
+
+        /* Special case: QuickSilver G4s seem to have a badly calibrated
+         * timebase-frequency in OF, VIA is much better on these. We should
+         * probably implement calibration based on the KL timer on these
+         * machines anyway... -BenH
+         */
+        if (machine_is_compatible("PowerMac3,5"))
+                if (via_calibrate_decr())
+                        return;
+#endif
+}
diff --git a/arch/powerpc/platforms/prep/Kconfig b/arch/powerpc/platforms/prep/Kconfig
new file mode 100644
index 000000000000..673ac47a1626
--- /dev/null
+++ b/arch/powerpc/platforms/prep/Kconfig
@@ -0,0 +1,22 @@
+
+config PREP_RESIDUAL
+        bool "Support for PReP Residual Data"
+        depends on PPC_PREP
+        help
+          Some PReP systems have residual data passed to the kernel by the
+          firmware.  This allows detection of memory size, devices present and
+          other useful pieces of information.  Sometimes this information is
+          not present or incorrect, in which case it could lead to the machine 
+          behaving incorrectly.  If this happens, either disable PREP_RESIDUAL
+          or pass the 'noresidual' option to the kernel.
+
+          If you are running a PReP system, say Y here, otherwise say N.
+
+config PROC_PREPRESIDUAL
+        bool "Support for reading of PReP Residual Data in /proc"
+        depends on PREP_RESIDUAL && PROC_FS
+        help
+          Enabling this option will create a /proc/residual file which allows
+          you to get at the residual data on PReP systems.  You will need a tool
+          (lsresidual) to parse it.  If you aren't on a PReP system, you don't
+          want this.
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
new file mode 100644
index 000000000000..2d57f588151d
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -0,0 +1,42 @@
+
+config PPC_SPLPAR
+        depends on PPC_PSERIES
+        bool "Support for shared-processor logical partitions"
+        default n
+        help
+          Enabling this option will make the kernel run more efficiently
+          on logically-partitioned pSeries systems which use shared
+          processors, that is, which share physical processors between
+          two or more partitions.
+
+config HMT
+        bool "Hardware multithreading"
+        depends on SMP && PPC_PSERIES && BROKEN
+        help
+          This option enables hardware multithreading on RS64 cpus.
+          pSeries systems p620 and p660 have such a cpu type.
+
+config EEH
+        bool "PCI Extended Error Handling (EEH)" if EMBEDDED
+        depends on PPC_PSERIES
+        default y if !EMBEDDED
+
+config RTAS_PROC
+        bool "Proc interface to RTAS"
+        depends on PPC_RTAS
+        default y
+
+config RTAS_FLASH
+        tristate "Firmware flash interface"
+        depends on PPC64 && RTAS_PROC
+
+config SCANLOG
+        tristate "Scanlog dump interface"
+        depends on RTAS_PROC && PPC_PSERIES
+
+config LPARCFG
+        tristate "LPAR Configuration Data"
+        depends on PPC_PSERIES || PPC_ISERIES
+        help
+        Provide system capacity information via human readable
+        <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
new file mode 100644
index 000000000000..5ef494e3a70f
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -0,0 +1,5 @@
+obj-y                   := pci.o lpar.o hvCall.o nvram.o reconfig.o \
+                           setup.o iommu.o rtas-fw.o ras.o
+obj-$(CONFIG_SMP)       += smp.o
+obj-$(CONFIG_IBMVIO)    += vio.o
+obj-$(CONFIG_XICS)      += xics.o
diff --git a/arch/ppc64/kernel/pSeries_hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 176e8da76466..176e8da76466 100644
--- a/arch/ppc64/kernel/pSeries_hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index d17f0108a032..9e90d41131d8 100644
--- a/arch/ppc64/kernel/pSeries_iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -46,7 +46,8 @@
 #include <asm/pSeries_reconfig.h>
 #include <asm/systemcfg.h>
 #include <asm/firmware.h>
-#include "pci.h"
+#include <asm/tce.h>
+#include <asm/ppc-pci.h>
 
 #define DBG(fmt...)
 
@@ -59,6 +60,9 @@ static void tce_build_pSeries(struct iommu_table *tbl, long index,
         union tce_entry t;
         union tce_entry *tp;
 
+        index <<= TCE_PAGE_FACTOR;
+        npages <<= TCE_PAGE_FACTOR;
+
         t.te_word = 0;
         t.te_rdwr = 1; // Read allowed 
 
@@ -69,11 +73,11 @@ static void tce_build_pSeries(struct iommu_table *tbl, long index,
 
         while (npages--) {
                 /* can't move this out since we might cross LMB boundary */
-                t.te_rpn = (virt_to_abs(uaddr)) >> PAGE_SHIFT;
+                t.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
         
                 tp->te_word = t.te_word;
 
-                uaddr += PAGE_SIZE;
+                uaddr += TCE_PAGE_SIZE;
                 tp++;
         }
 }
@@ -84,6 +88,9 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
         union tce_entry t;
         union tce_entry *tp;
 
+        npages <<= TCE_PAGE_FACTOR;
+        index <<= TCE_PAGE_FACTOR;
+
         t.te_word = 0;
         tp  = ((union tce_entry *)tbl->it_base) + index;
                 
@@ -103,7 +110,7 @@ static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
         union tce_entry tce;
 
         tce.te_word = 0;
-        tce.te_rpn = (virt_to_abs(uaddr)) >> PAGE_SHIFT;
+        tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
         tce.te_rdwr = 1;
         if (direction != DMA_TO_DEVICE)
                 tce.te_pciwr = 1;
@@ -136,6 +143,9 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
         union tce_entry tce, *tcep;
         long l, limit;
 
+        tcenum <<= TCE_PAGE_FACTOR;
+        npages <<= TCE_PAGE_FACTOR;
+
         if (npages == 1)
                 return tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
                                            direction);
@@ -155,7 +165,7 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
         }
 
         tce.te_word = 0;
-        tce.te_rpn = (virt_to_abs(uaddr)) >> PAGE_SHIFT;
+        tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
         tce.te_rdwr = 1;
         if (direction != DMA_TO_DEVICE)
                 tce.te_pciwr = 1;
@@ -166,7 +176,7 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
                  * Set up the page with TCE data, looping through and setting
                  * the values.
                  */
-                limit = min_t(long, npages, PAGE_SIZE/sizeof(union tce_entry));
+                limit = min_t(long, npages, 4096/sizeof(union tce_entry));
 
                 for (l = 0; l < limit; l++) {
                         tcep[l] = tce;
@@ -196,6 +206,9 @@ static void tce_free_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages
         u64 rc;
         union tce_entry tce;
 
+        tcenum <<= TCE_PAGE_FACTOR;
+        npages <<= TCE_PAGE_FACTOR;
+
         tce.te_word = 0;
 
         while (npages--) {
@@ -221,6 +234,9 @@ static void tce_freemulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long n
         u64 rc;
         union tce_entry tce;
 
+        tcenum <<= TCE_PAGE_FACTOR;
+        npages <<= TCE_PAGE_FACTOR;
+
         tce.te_word = 0;
 
         rc = plpar_tce_stuff((u64)tbl->it_index,
diff --git a/arch/ppc64/kernel/pSeries_lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index a6de83f2078f..268d8362dde7 100644
--- a/arch/ppc64/kernel/pSeries_lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -486,8 +486,7 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
  * Take a spinlock around flushes to avoid bouncing the hypervisor tlbie
  * lock.
  */
-void pSeries_lpar_flush_hash_range(unsigned long context, unsigned long number,
-                                   int local)
+void pSeries_lpar_flush_hash_range(unsigned long number, int local)
 {
         int i;
         unsigned long flags = 0;
@@ -498,7 +497,7 @@ void pSeries_lpar_flush_hash_range(unsigned long context, unsigned long number,
                 spin_lock_irqsave(&pSeries_lpar_tlbie_lock, flags);
 
         for (i = 0; i < number; i++)
-                flush_hash_page(context, batch->addr[i], batch->pte[i], local);
+                flush_hash_page(batch->vaddr[i], batch->pte[i], local);
 
         if (lock_tlbie)
                 spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags);
diff --git a/arch/ppc64/kernel/pSeries_nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 18abfb1f4e24..18abfb1f4e24 100644
--- a/arch/ppc64/kernel/pSeries_nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
diff --git a/arch/ppc64/kernel/pSeries_pci.c b/arch/powerpc/platforms/pseries/pci.c
index 928f8febdb3b..c198656a3bb5 100644
--- a/arch/ppc64/kernel/pSeries_pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -29,8 +29,7 @@
 
 #include <asm/pci-bridge.h>
 #include <asm/prom.h>
-
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 static int __devinitdata s7a_workaround = -1;
 
diff --git a/arch/ppc64/kernel/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 41b97dc9cc0a..6562ff4b0a82 100644
--- a/arch/ppc64/kernel/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -1,17 +1,16 @@
 /*
- * ras.c
  * Copyright (C) 2001 Dave Engebretsen IBM Corporation
- * 
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
@@ -19,7 +18,7 @@
 
 /* Change Activity:
  * 2001/09/21 : engebret : Created with minimal EPOW and HW exception support.
- * End Change Activity 
+ * End Change Activity
  */
 
 #include <linux/errno.h>
@@ -323,7 +322,7 @@ static int recover_mce(struct pt_regs *regs, struct rtas_error_log * err)
                 nonfatal = 1;
         }
 
-        log_error((char *)err, ERR_TYPE_RTAS_LOG, !nonfatal);
+        log_error((char *)err, ERR_TYPE_RTAS_LOG, !nonfatal);
 
         return nonfatal;
 }
diff --git a/arch/ppc64/kernel/pSeries_reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 58c61219d08e..58c61219d08e 100644
--- a/arch/ppc64/kernel/pSeries_reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
diff --git a/arch/powerpc/platforms/pseries/rtas-fw.c b/arch/powerpc/platforms/pseries/rtas-fw.c
new file mode 100644
index 000000000000..15d81d758ca0
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/rtas-fw.c
@@ -0,0 +1,138 @@
+/*
+ *
+ * Procedures for firmware flash updates on pSeries systems.
+ *
+ * Peter Bergner, IBM   March 2001.
+ * Copyright (C) 2001 IBM.
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <stdarg.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <asm/prom.h>
+#include <asm/rtas.h>
+#include <asm/semaphore.h>
+#include <asm/machdep.h>
+#include <asm/page.h>
+#include <asm/param.h>
+#include <asm/system.h>
+#include <asm/abs_addr.h>
+#include <asm/udbg.h>
+#include <asm/delay.h>
+#include <asm/uaccess.h>
+#include <asm/systemcfg.h>
+
+#include "rtas-fw.h"
+
+struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
+
+#define FLASH_BLOCK_LIST_VERSION (1UL)
+
+static void rtas_flash_firmware(void)
+{
+        unsigned long image_size;
+        struct flash_block_list *f, *next, *flist;
+        unsigned long rtas_block_list;
+        int i, status, update_token;
+
+        update_token = rtas_token("ibm,update-flash-64-and-reboot");
+        if (update_token == RTAS_UNKNOWN_SERVICE) {
+                printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot is not available -- not a service partition?\n");
+                printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
+                return;
+        }
+
+        /* NOTE: the "first" block list is a global var with no data
+         * blocks in the kernel data segment.  We do this because
+         * we want to ensure this block_list addr is under 4GB.
+         */
+        rtas_firmware_flash_list.num_blocks = 0;
+        flist = (struct flash_block_list *)&rtas_firmware_flash_list;
+        rtas_block_list = virt_to_abs(flist);
+        if (rtas_block_list >= 4UL*1024*1024*1024) {
+                printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
+                return;
+        }
+
+        printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
+        /* Update the block_list in place. */
+        image_size = 0;
+        for (f = flist; f; f = next) {
+                /* Translate data addrs to absolute */
+                for (i = 0; i < f->num_blocks; i++) {
+                        f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
+                        image_size += f->blocks[i].length;
+                }
+                next = f->next;
+                /* Don't translate NULL pointer for last entry */
+                if (f->next)
+                        f->next = (struct flash_block_list *)virt_to_abs(f->next);
+                else
+                        f->next = NULL;
+                /* make num_blocks into the version/length field */
+                f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
+        }
+
+        printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
+        printk(KERN_ALERT "FLASH: performing flash and reboot\n");
+        rtas_progress("Flashing        \n", 0x0);
+        rtas_progress("Please Wait...  ", 0x0);
+        printk(KERN_ALERT "FLASH: this will take several minutes.  Do not power off!\n");
+        status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
+        switch (status) {       /* should only get "bad" status */
+            case 0:
+                printk(KERN_ALERT "FLASH: success\n");
+                break;
+            case -1:
+                printk(KERN_ALERT "FLASH: hardware error.  Firmware may not be not flashed\n");
+                break;
+            case -3:
+                printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform.  Firmware not flashed\n");
+                break;
+            case -4:
+                printk(KERN_ALERT "FLASH: flash failed when partially complete.  System may not reboot\n");
+                break;
+            default:
+                printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
+                break;
+        }
+}
+
+void rtas_flash_bypass_warning(void)
+{
+        printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
+        printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
+}
+
+
+void rtas_fw_restart(char *cmd)
+{
+        if (rtas_firmware_flash_list.next)
+                rtas_flash_firmware();
+        rtas_restart(cmd);
+}
+
+void rtas_fw_power_off(void)
+{
+        if (rtas_firmware_flash_list.next)
+                rtas_flash_bypass_warning();
+        rtas_power_off();
+}
+
+void rtas_fw_halt(void)
+{
+        if (rtas_firmware_flash_list.next)
+                rtas_flash_bypass_warning();
+        rtas_halt();
+}
+
+EXPORT_SYMBOL(rtas_firmware_flash_list);
diff --git a/arch/powerpc/platforms/pseries/rtas-fw.h b/arch/powerpc/platforms/pseries/rtas-fw.h
new file mode 100644
index 000000000000..e70fa69974a3
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/rtas-fw.h
@@ -0,0 +1,3 @@
+void rtas_fw_restart(char *cmd);
+void rtas_fw_power_off(void);
+void rtas_fw_halt(void);
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/powerpc/platforms/pseries/setup.c
index 3009701eb90d..10cb0f2d9b5b 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -1,5 +1,5 @@
 /*
- *  linux/arch/ppc/kernel/setup.c
+ *  64-bit pSeries and RS/6000 setup code.
  *
  *  Copyright (C) 1995  Linus Torvalds
  *  Adapted from 'alpha' version by Gary Thomas
@@ -59,13 +59,15 @@
 #include <asm/time.h>
 #include <asm/nvram.h>
 #include <asm/plpar_wrappers.h>
-#include <asm/xics.h>
+#include "xics.h"
 #include <asm/firmware.h>
 #include <asm/pmc.h>
+#include <asm/mpic.h>
+#include <asm/ppc-pci.h>
+#include <asm/i8259.h>
+#include <asm/udbg.h>
 
-#include "i8259.h"
-#include "mpic.h"
-#include "pci.h"
+#include "rtas-fw.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -84,13 +86,12 @@ int fwnmi_active;  /* TRUE if an FWNMI handler is present */
 extern void pSeries_system_reset_exception(struct pt_regs *regs);
 extern int pSeries_machine_check_exception(struct pt_regs *regs);
 
-static int pseries_shared_idle(void);
-static int pseries_dedicated_idle(void);
+static void pseries_shared_idle(void);
+static void pseries_dedicated_idle(void);
 
-static volatile void __iomem * chrp_int_ack_special;
 struct mpic *pSeries_mpic;
 
-void pSeries_get_cpuinfo(struct seq_file *m)
+void pSeries_show_cpuinfo(struct seq_file *m)
 {
         struct device_node *root;
         const char *model = "";
@@ -119,19 +120,11 @@ static void __init fwnmi_init(void)
                 fwnmi_active = 1;
 }
 
-static int pSeries_irq_cascade(struct pt_regs *regs, void *data)
-{
-        if (chrp_int_ack_special)
-                return readb(chrp_int_ack_special);
-        else
-                return i8259_irq(smp_processor_id());
-}
-
 static void __init pSeries_init_mpic(void)
 {
         unsigned int *addrp;
         struct device_node *np;
-        int i;
+        unsigned long intack = 0;
 
         /* All ISUs are setup, complete initialization */
         mpic_init(pSeries_mpic);
@@ -142,16 +135,14 @@ static void __init pSeries_init_mpic(void)
                  get_property(np, "8259-interrupt-acknowledge", NULL)))
                 printk(KERN_ERR "Cannot find pci to get ack address\n");
         else
-                chrp_int_ack_special = ioremap(addrp[prom_n_addr_cells(np)-1], 1);
+                intack = addrp[prom_n_addr_cells(np)-1];
         of_node_put(np);
 
         /* Setup the legacy interrupts & controller */
-        for (i = 0; i < NUM_ISA_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-        i8259_init(0);
+        i8259_init(intack, 0);
 
         /* Hook cascade to mpic */
-        mpic_setup_cascade(NUM_ISA_INTERRUPTS, pSeries_irq_cascade, NULL);
+        mpic_setup_cascade(NUM_ISA_INTERRUPTS, i8259_irq_cascade, NULL);
 }
 
 static void __init pSeries_setup_mpic(void)
@@ -241,10 +232,6 @@ static void __init pSeries_setup_arch(void)
         find_and_init_phbs();
         eeh_init();
 
-#ifdef CONFIG_DUMMY_CONSOLE
-        conswitchp = &dummy_con;
-#endif
-
         pSeries_nvram_init();
 
         /* Choose an idle loop */
@@ -488,8 +475,8 @@ static inline void dedicated_idle_sleep(unsigned int cpu)
         }
 }
 
-static int pseries_dedicated_idle(void)
-{
+static void pseries_dedicated_idle(void)
+{ 
         long oldval;
         struct paca_struct *lpaca = get_paca();
         unsigned int cpu = smp_processor_id();
@@ -544,7 +531,7 @@ static int pseries_dedicated_idle(void)
         }
 }
 
-static int pseries_shared_idle(void)
+static void pseries_shared_idle(void)
 {
         struct paca_struct *lpaca = get_paca();
         unsigned int cpu = smp_processor_id();
@@ -586,8 +573,6 @@ static int pseries_shared_idle(void)
                 if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
                         cpu_die();
         }
-
-        return 0;
 }
 
 static int pSeries_pci_probe_mode(struct pci_bus *bus)
@@ -601,14 +586,14 @@ struct machdep_calls __initdata pSeries_md = {
         .probe                  = pSeries_probe,
         .setup_arch             = pSeries_setup_arch,
         .init_early             = pSeries_init_early,
-        .get_cpuinfo            = pSeries_get_cpuinfo,
+        .show_cpuinfo           = pSeries_show_cpuinfo,
         .log_error              = pSeries_log_error,
         .pcibios_fixup          = pSeries_final_fixup,
         .pci_probe_mode         = pSeries_pci_probe_mode,
         .irq_bus_setup          = pSeries_irq_bus_setup,
-        .restart                = rtas_restart,
-        .power_off              = rtas_power_off,
-        .halt                   = rtas_halt,
+        .restart                = rtas_fw_restart,
+        .power_off              = rtas_fw_power_off,
+        .halt                   = rtas_fw_halt,
         .panic                  = rtas_os_term,
         .cpu_die                = pSeries_mach_cpu_die,
         .get_boot_time          = rtas_get_boot_time,
diff --git a/arch/ppc64/kernel/pSeries_smp.c b/arch/powerpc/platforms/pseries/smp.c
index d2c7e2c4733b..9c9458ddfc25 100644
--- a/arch/ppc64/kernel/pSeries_smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -1,5 +1,5 @@
 /*
- * SMP support for pSeries and BPA machines.
+ * SMP support for pSeries machines.
  *
  * Dave Engebretsen, Peter Bergner, and
  * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com
@@ -39,16 +39,14 @@
 #include <asm/paca.h>
 #include <asm/time.h>
 #include <asm/machdep.h>
-#include <asm/xics.h>
+#include "xics.h"
 #include <asm/cputable.h>
 #include <asm/firmware.h>
 #include <asm/system.h>
 #include <asm/rtas.h>
 #include <asm/plpar_wrappers.h>
 #include <asm/pSeries_reconfig.h>
-
-#include "mpic.h"
-#include "bpa_iic.h"
+#include <asm/mpic.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -343,36 +341,6 @@ static void __devinit smp_xics_setup_cpu(int cpu)
 
 }
 #endif /* CONFIG_XICS */
-#ifdef CONFIG_BPA_IIC
-static void smp_iic_message_pass(int target, int msg)
-{
-        unsigned int i;
-
-        if (target < NR_CPUS) {
-                iic_cause_IPI(target, msg);
-        } else {
-                for_each_online_cpu(i) {
-                        if (target == MSG_ALL_BUT_SELF
-                            && i == smp_processor_id())
-                                continue;
-                        iic_cause_IPI(i, msg);
-                }
-        }
-}
-
-static int __init smp_iic_probe(void)
-{
-        iic_request_IPIs();
-
-        return cpus_weight(cpu_possible_map);
-}
-
-static void __devinit smp_iic_setup_cpu(int cpu)
-{
-        if (cpu != boot_cpuid)
-                iic_setup_cpu();
-}
-#endif /* CONFIG_BPA_IIC */
 
 static DEFINE_SPINLOCK(timebase_lock);
 static unsigned long timebase = 0;
@@ -444,15 +412,6 @@ static struct smp_ops_t pSeries_xics_smp_ops = {
         .cpu_bootable   = smp_pSeries_cpu_bootable,
 };
 #endif
-#ifdef CONFIG_BPA_IIC
-static struct smp_ops_t bpa_iic_smp_ops = {
-        .message_pass   = smp_iic_message_pass,
-        .probe          = smp_iic_probe,
-        .kick_cpu       = smp_pSeries_kick_cpu,
-        .setup_cpu      = smp_iic_setup_cpu,
-        .cpu_bootable   = smp_pSeries_cpu_bootable,
-};
-#endif
 
 /* This is called very early */
 void __init smp_init_pSeries(void)
@@ -472,11 +431,6 @@ void __init smp_init_pSeries(void)
                 smp_ops = &pSeries_xics_smp_ops;
                 break;
 #endif
-#ifdef CONFIG_BPA_IIC
-        case IC_BPA_IIC:
-                smp_ops = &bpa_iic_smp_ops;
-                break;
-#endif
         default:
                 panic("Invalid interrupt controller");
         }
diff --git a/arch/ppc64/kernel/pSeries_vio.c b/arch/powerpc/platforms/pseries/vio.c
index e0ae06f58f86..866379b80c09 100644
--- a/arch/ppc64/kernel/pSeries_vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -22,6 +22,7 @@
 #include <asm/prom.h>
 #include <asm/vio.h>
 #include <asm/hvcall.h>
+#include <asm/tce.h>
 
 extern struct subsystem devices_subsys; /* needed for vio_find_name() */
 
diff --git a/arch/ppc64/kernel/xics.c b/arch/powerpc/platforms/pseries/xics.c
index daf93885dcfa..c72c86f05cb6 100644
--- a/arch/ppc64/kernel/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -1,5 +1,5 @@
-/* 
- * arch/ppc64/kernel/xics.c
+/*
+ * arch/powerpc/platforms/pseries/xics.c
  *
  * Copyright 2000 IBM Corporation.
  *
@@ -25,11 +25,11 @@
 #include <asm/pgtable.h>
 #include <asm/smp.h>
 #include <asm/rtas.h>
-#include <asm/xics.h>
 #include <asm/hvcall.h>
 #include <asm/machdep.h>
+#include <asm/i8259.h>
 
-#include "i8259.h"
+#include "xics.h"
 
 static unsigned int xics_startup(unsigned int irq);
 static void xics_enable_irq(unsigned int irq);
@@ -62,7 +62,7 @@ static struct radix_tree_root irq_map = RADIX_TREE_INIT(GFP_ATOMIC);
 /* Want a priority other than 0.  Various HW issues require this. */
 #define DEFAULT_PRIORITY        5
 
-/* 
+/*
  * Mark IPIs as higher priority so we can take them inside interrupts that
  * arent marked SA_INTERRUPT
  */
@@ -169,11 +169,11 @@ static inline long plpar_xirr(unsigned long *xirr_ret)
 static int pSeriesLP_xirr_info_get(int n_cpu)
 {
         unsigned long lpar_rc;
-        unsigned long return_value; 
+        unsigned long return_value;
 
         lpar_rc = plpar_xirr(&return_value);
         if (lpar_rc != H_Success)
-                panic(" bad return code xirr - rc = %lx \n", lpar_rc); 
+                panic(" bad return code xirr - rc = %lx \n", lpar_rc);
         return (int)return_value;
 }
 
@@ -185,7 +185,7 @@ static void pSeriesLP_xirr_info_set(int n_cpu, int value)
         lpar_rc = plpar_eoi(val64);
         if (lpar_rc != H_Success)
                 panic("bad return code EOI - rc = %ld, value=%lx\n", lpar_rc,
-                      val64); 
+                      val64);
 }
 
 void pSeriesLP_cppr_info(int n_cpu, u8 value)
@@ -194,7 +194,7 @@ void pSeriesLP_cppr_info(int n_cpu, u8 value)
 
         lpar_rc = plpar_cppr(value);
         if (lpar_rc != H_Success)
-                panic("bad return code cppr - rc = %lx\n", lpar_rc); 
+                panic("bad return code cppr - rc = %lx\n", lpar_rc);
 }
 
 static void pSeriesLP_qirr_info(int n_cpu , u8 value)
@@ -203,7 +203,7 @@ static void pSeriesLP_qirr_info(int n_cpu , u8 value)
 
         lpar_rc = plpar_ipi(get_hard_smp_processor_id(n_cpu), value);
         if (lpar_rc != H_Success)
-                panic("bad return code qirr - rc = %lx\n", lpar_rc); 
+                panic("bad return code qirr - rc = %lx\n", lpar_rc);
 }
 
 xics_ops pSeriesLP_ops = {
@@ -366,7 +366,7 @@ int xics_get_irq(struct pt_regs *regs)
 
         /* for sanity, this had better be < NR_IRQS - 16 */
         if (vec == xics_irq_8259_cascade_real) {
-                irq = i8259_irq(cpu);
+                irq = i8259_irq(regs);
                 if (irq == -1) {
                         /* Spurious cascaded interrupt.  Still must ack xics */
                         xics_end_irq(irq_offset_up(xics_irq_8259_cascade));
@@ -462,7 +462,7 @@ void xics_init_IRQ(void)
         struct xics_interrupt_node {
                 unsigned long addr;
                 unsigned long size;
-        } intnodes[NR_CPUS]; 
+        } intnodes[NR_CPUS];
 
         ppc64_boot_msg(0x20, "XICS Init");
 
@@ -487,7 +487,7 @@ nextnode:
         ireg = (uint *)get_property(np, "reg", &ilen);
         if (!ireg)
                 panic("xics_init_IRQ: can't find interrupt reg property");
-        
+
         while (ilen) {
                 intnodes[indx].addr = (unsigned long)*ireg++ << 32;
                 ilen -= sizeof(uint);
@@ -555,7 +555,7 @@ nextnode:
                                 continue;
 
                         hard_id = get_hard_smp_processor_id(i);
-                        xics_per_cpu[i] = ioremap(intnodes[hard_id].addr, 
+                        xics_per_cpu[i] = ioremap(intnodes[hard_id].addr,
                                                   intnodes[hard_id].size);
                 }
 #else
@@ -589,7 +589,7 @@ static int __init xics_setup_i8259(void)
                                 no_action, 0, "8259 cascade", NULL))
                         printk(KERN_ERR "xics_setup_i8259: couldn't get 8259 "
                                         "cascade\n");
-                i8259_init(0);
+                i8259_init(0, 0);
         }
         return 0;
 }
diff --git a/include/asm-ppc64/xics.h b/arch/powerpc/platforms/pseries/xics.h
index 1092af55d707..e14c70868f1d 100644
--- a/include/asm-ppc64/xics.h
+++ b/arch/powerpc/platforms/pseries/xics.h
@@ -1,5 +1,5 @@
-/* 
- * arch/ppc64/kernel/xics.h
+/*
+ * arch/powerpc/platforms/pseries/xics.h
  *
  * Copyright 2000 IBM Corporation.
  *
@@ -9,8 +9,8 @@
  *  2 of the License, or (at your option) any later version.
  */
 
-#ifndef _PPC64_KERNEL_XICS_H
-#define _PPC64_KERNEL_XICS_H
+#ifndef _POWERPC_KERNEL_XICS_H
+#define _POWERPC_KERNEL_XICS_H
 
 #include <linux/cache.h>
 
@@ -31,4 +31,4 @@ struct xics_ipi_struct {
 
 extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned;
 
-#endif /* _PPC64_KERNEL_XICS_H */
+#endif /* _POWERPC_KERNEL_XICS_H */
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
new file mode 100644
index 000000000000..8acd21dee05d
--- /dev/null
+++ b/arch/powerpc/sysdev/Makefile
@@ -0,0 +1,7 @@
+obj-$(CONFIG_MPIC)              += mpic.o
+obj-$(CONFIG_PPC_INDIRECT_PCI)  += indirect_pci.o
+obj-$(CONFIG_PPC_I8259)         += i8259.o
+obj-$(CONFIG_PPC_MPC106)        += grackle.o
+obj-$(CONFIG_BOOKE)             += dcr.o
+obj-$(CONFIG_40x)               += dcr.o
+obj-$(CONFIG_U3_DART)           += u3_iommu.o
diff --git a/arch/ppc/syslib/dcr.S b/arch/powerpc/sysdev/dcr.S
index 895f10243a43..895f10243a43 100644
--- a/arch/ppc/syslib/dcr.S
+++ b/arch/powerpc/sysdev/dcr.S
diff --git a/arch/powerpc/sysdev/grackle.c b/arch/powerpc/sysdev/grackle.c
new file mode 100644
index 000000000000..b6ec793a23be
--- /dev/null
+++ b/arch/powerpc/sysdev/grackle.c
@@ -0,0 +1,64 @@
+/*
+ * Functions for setting up and using a MPC106 northbridge
+ * Extracted from arch/powerpc/platforms/powermac/pci.c.
+ *
+ * Copyright (C) 2003 Benjamin Herrenschmuidt (benh@kernel.crashing.org)
+ * Copyright (C) 1997 Paul Mackerras (paulus@samba.org)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#include <asm/grackle.h>
+
+#define GRACKLE_CFA(b, d, o)    (0x80 | ((b) << 8) | ((d) << 16) \
+                                 | (((o) & ~3) << 24))
+
+#define GRACKLE_PICR1_STG               0x00000040
+#define GRACKLE_PICR1_LOOPSNOOP         0x00000010
+
+/* N.B. this is called before bridges is initialized, so we can't
+   use grackle_pcibios_{read,write}_config_dword. */
+static inline void grackle_set_stg(struct pci_controller* bp, int enable)
+{
+        unsigned int val;
+
+        out_be32(bp->cfg_addr, GRACKLE_CFA(0, 0, 0xa8));
+        val = in_le32(bp->cfg_data);
+        val = enable? (val | GRACKLE_PICR1_STG) :
+                (val & ~GRACKLE_PICR1_STG);
+        out_be32(bp->cfg_addr, GRACKLE_CFA(0, 0, 0xa8));
+        out_le32(bp->cfg_data, val);
+        (void)in_le32(bp->cfg_data);
+}
+
+static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
+{
+        unsigned int val;
+
+        out_be32(bp->cfg_addr, GRACKLE_CFA(0, 0, 0xa8));
+        val = in_le32(bp->cfg_data);
+        val = enable? (val | GRACKLE_PICR1_LOOPSNOOP) :
+                (val & ~GRACKLE_PICR1_LOOPSNOOP);
+        out_be32(bp->cfg_addr, GRACKLE_CFA(0, 0, 0xa8));
+        out_le32(bp->cfg_data, val);
+        (void)in_le32(bp->cfg_data);
+}
+
+void __init setup_grackle(struct pci_controller *hose)
+{
+        setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
+        if (machine_is_compatible("AAPL,PowerBook1998"))
+                grackle_set_loop_snoop(hose, 1);
+#if 0   /* Disabled for now, HW problems ??? */
+        grackle_set_stg(hose, 1);
+#endif
+}
diff --git a/arch/ppc/syslib/i8259.c b/arch/powerpc/sysdev/i8259.c
index 5c7908c20e43..90bce6e0c191 100644
--- a/arch/ppc/syslib/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -1,18 +1,26 @@
+/*
+ * i8259 interrupt controller driver.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <asm/io.h>
 #include <asm/i8259.h>
 
-static volatile unsigned char *pci_intack; /* RO, gives us the irq vector */
+static volatile void __iomem *pci_intack; /* RO, gives us the irq vector */
 
-unsigned char cached_8259[2] = { 0xff, 0xff };
+static unsigned char cached_8259[2] = { 0xff, 0xff };
 #define cached_A1 (cached_8259[0])
 #define cached_21 (cached_8259[1])
 
 static DEFINE_SPINLOCK(i8259_lock);
 
-int i8259_pic_irq_offset;
+static int i8259_pic_irq_offset;
 
 /*
  * Acknowledge the IRQ using either the PCI host bridge's interrupt
@@ -20,8 +28,7 @@ int i8259_pic_irq_offset;
  * which is called.  It should be noted that polling is broken on some
  * IBM and Motorola PReP boxes so we must use the int-ack feature on them.
  */
-int
-i8259_irq(struct pt_regs *regs)
+int i8259_irq(struct pt_regs *regs)
 {
         int irq;
 
@@ -29,7 +36,7 @@ i8259_irq(struct pt_regs *regs)
 
         /* Either int-ack or poll for the IRQ */
         if (pci_intack)
-                irq = *pci_intack;
+                irq = readb(pci_intack);
         else {
                 /* Perform an interrupt acknowledge cycle on controller 1. */
                 outb(0x0C, 0x20);               /* prepare for poll */
@@ -59,7 +66,12 @@ i8259_irq(struct pt_regs *regs)
         }
 
         spin_unlock(&i8259_lock);
-        return irq;
+        return irq + i8259_pic_irq_offset;
+}
+
+int i8259_irq_cascade(struct pt_regs *regs, void *unused)
+{
+        return i8259_irq(regs);
 }
 
 static void i8259_mask_and_ack_irq(unsigned int irq_nr)
@@ -67,20 +79,18 @@ static void i8259_mask_and_ack_irq(unsigned int irq_nr)
         unsigned long flags;
 
         spin_lock_irqsave(&i8259_lock, flags);
-        if ( irq_nr >= i8259_pic_irq_offset )
-                irq_nr -= i8259_pic_irq_offset;
-
+        irq_nr -= i8259_pic_irq_offset;
         if (irq_nr > 7) {
                 cached_A1 |= 1 << (irq_nr-8);
-                inb(0xA1); /* DUMMY */
-                outb(cached_A1,0xA1);
-                outb(0x20,0xA0); /* Non-specific EOI */
-                outb(0x20,0x20); /* Non-specific EOI to cascade */
+                inb(0xA1);      /* DUMMY */
+                outb(cached_A1, 0xA1);
+                outb(0x20, 0xA0);       /* Non-specific EOI */
+                outb(0x20, 0x20);       /* Non-specific EOI to cascade */
         } else {
                 cached_21 |= 1 << irq_nr;
-                inb(0x21); /* DUMMY */
-                outb(cached_21,0x21);
-                outb(0x20,0x20); /* Non-specific EOI */
+                inb(0x21);      /* DUMMY */
+                outb(cached_21, 0x21);
+                outb(0x20, 0x20);       /* Non-specific EOI */
         }
         spin_unlock_irqrestore(&i8259_lock, flags);
 }
@@ -96,9 +106,8 @@ static void i8259_mask_irq(unsigned int irq_nr)
         unsigned long flags;
 
         spin_lock_irqsave(&i8259_lock, flags);
-        if ( irq_nr >= i8259_pic_irq_offset )
-                irq_nr -= i8259_pic_irq_offset;
-        if ( irq_nr < 8 )
+        irq_nr -= i8259_pic_irq_offset;
+        if (irq_nr < 8)
                 cached_21 |= 1 << irq_nr;
         else
                 cached_A1 |= 1 << (irq_nr-8);
@@ -111,9 +120,8 @@ static void i8259_unmask_irq(unsigned int irq_nr)
         unsigned long flags;
 
         spin_lock_irqsave(&i8259_lock, flags);
-        if ( irq_nr >= i8259_pic_irq_offset )
-                irq_nr -= i8259_pic_irq_offset;
-        if ( irq_nr < 8 )
+        irq_nr -= i8259_pic_irq_offset;
+        if (irq_nr < 8)
                 cached_21 &= ~(1 << irq_nr);
         else
                 cached_A1 &= ~(1 << (irq_nr-8));
@@ -169,12 +177,14 @@ static struct irqaction i8259_irqaction = {
  * intack_addr - PCI interrupt acknowledge (real) address which will return
  *               the active irq from the 8259
  */
-void __init
-i8259_init(long intack_addr)
+void __init i8259_init(unsigned long intack_addr, int offset)
 {
         unsigned long flags;
+        int i;
 
         spin_lock_irqsave(&i8259_lock, flags);
+        i8259_pic_irq_offset = offset;
+
         /* init master interrupt controller */
         outb(0x11, 0x20); /* Start init sequence */
         outb(0x00, 0x21); /* Vector base */
@@ -198,11 +208,14 @@ i8259_init(long intack_addr)
         spin_unlock_irqrestore(&i8259_lock, flags);
 
         /* reserve our resources */
-        setup_irq( i8259_pic_irq_offset + 2, &i8259_irqaction);
+        setup_irq(offset + 2, &i8259_irqaction);
         request_resource(&ioport_resource, &pic1_iores);
         request_resource(&ioport_resource, &pic2_iores);
         request_resource(&ioport_resource, &pic_edgectrl_iores);
 
         if (intack_addr != 0)
                 pci_intack = ioremap(intack_addr, 1);
+
+        for (i = 0; i < NUM_ISA_INTERRUPTS; ++i)
+                irq_desc[offset + i].handler = &i8259_pic;
 }
diff --git a/arch/ppc/syslib/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index e71488469704..e71488469704 100644
--- a/arch/ppc/syslib/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
diff --git a/arch/ppc64/kernel/mpic.c b/arch/powerpc/sysdev/mpic.c
index 5f5bc73754d9..105f05341a41 100644
--- a/arch/ppc64/kernel/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1,5 +1,5 @@
 /*
- *  arch/ppc64/kernel/mpic.c
+ *  arch/powerpc/kernel/mpic.c
  *
  *  Driver for interrupt controllers following the OpenPIC standard, the
  *  common implementation beeing IBM's MPIC. This driver also can deal
@@ -31,8 +31,8 @@
 #include <asm/pgtable.h>
 #include <asm/irq.h>
 #include <asm/machdep.h>
-
-#include "mpic.h"
+#include <asm/mpic.h>
+#include <asm/smp.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) printk(fmt)
@@ -44,6 +44,9 @@ static struct mpic *mpics;
 static struct mpic *mpic_primary;
 static DEFINE_SPINLOCK(mpic_lock);
 
+#ifdef CONFIG_PPC32     /* XXX for now */
+#define distribute_irqs CONFIG_IRQ_ALL_CPUS
+#endif
 
 /*
  * Register accessor functions
@@ -355,7 +358,7 @@ static void mpic_enable_irq(unsigned int irq)
         struct mpic *mpic = mpic_from_irq(irq);
         unsigned int src = irq - mpic->irq_offset;
 
-        DBG("%s: enable_irq: %d (src %d)\n", mpic->name, irq, src);
+        DBG("%p: %s: enable_irq: %d (src %d)\n", mpic, mpic->name, irq, src);
 
         mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI,
                        mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & ~MPIC_VECPRI_MASK);
@@ -480,6 +483,7 @@ struct mpic * __init mpic_alloc(unsigned long phys_addr,
         if (mpic == NULL)
                 return NULL;
         
+
         memset(mpic, 0, sizeof(struct mpic));
         mpic->name = name;
 
@@ -506,7 +510,7 @@ struct mpic * __init mpic_alloc(unsigned long phys_addr,
         mpic->senses_count = senses_count;
 
         /* Map the global registers */
-        mpic->gregs = ioremap(phys_addr + MPIC_GREG_BASE, 0x2000);
+        mpic->gregs = ioremap(phys_addr + MPIC_GREG_BASE, 0x1000);
         mpic->tmregs = mpic->gregs + ((MPIC_TIMER_BASE - MPIC_GREG_BASE) >> 2);
         BUG_ON(mpic->gregs == NULL);
 
@@ -644,7 +648,6 @@ void __init mpic_init(struct mpic *mpic)
                         continue;
                 irq_desc[mpic->ipi_offset+i].status |= IRQ_PER_CPU;
                 irq_desc[mpic->ipi_offset+i].handler = &mpic->hc_ipi;
-                
 #endif /* CONFIG_SMP */
         }
 
@@ -700,7 +703,7 @@ void __init mpic_init(struct mpic *mpic)
                 /* init hw */
                 mpic_irq_write(i, MPIC_IRQ_VECTOR_PRI, vecpri);
                 mpic_irq_write(i, MPIC_IRQ_DESTINATION,
-                               1 << get_hard_smp_processor_id(boot_cpuid));
+                               1 << hard_smp_processor_id());
 
                 /* init linux descriptors */
                 if (i < mpic->irq_count) {
@@ -792,6 +795,21 @@ void mpic_setup_this_cpu(void)
 #endif /* CONFIG_SMP */
 }
 
+int mpic_cpu_get_priority(void)
+{
+        struct mpic *mpic = mpic_primary;
+
+        return mpic_cpu_read(MPIC_CPU_CURRENT_TASK_PRI);
+}
+
+void mpic_cpu_set_priority(int prio)
+{
+        struct mpic *mpic = mpic_primary;
+
+        prio &= MPIC_CPU_TASKPRI_MASK;
+        mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, prio);
+}
+
 /*
  * XXX: someone who knows mpic should check this.
  * do we need to eoi the ipi including for kexec cpu here (see xics comments)?
@@ -885,4 +903,25 @@ void mpic_request_ipis(void)
 
         printk("IPIs requested... \n");
 }
+
+void smp_mpic_message_pass(int target, int msg)
+{
+        /* make sure we're sending something that translates to an IPI */
+        if ((unsigned int)msg > 3) {
+                printk("SMP %d: smp_message_pass: unknown msg %d\n",
+                       smp_processor_id(), msg);
+                return;
+        }
+        switch (target) {
+        case MSG_ALL:
+                mpic_send_ipi(msg, 0xffffffff);
+                break;
+        case MSG_ALL_BUT_SELF:
+                mpic_send_ipi(msg, 0xffffffff & ~(1 << smp_processor_id()));
+                break;
+        default:
+                mpic_send_ipi(msg, 1 << target);
+                break;
+        }
+}
 #endif /* CONFIG_SMP */
diff --git a/arch/ppc64/kernel/u3_iommu.c b/arch/powerpc/sysdev/u3_iommu.c
index 41ea09cb9ac7..fba871a1bda5 100644
--- a/arch/ppc64/kernel/u3_iommu.c
+++ b/arch/powerpc/sysdev/u3_iommu.c
@@ -44,39 +44,11 @@
 #include <asm/abs_addr.h>
 #include <asm/cacheflush.h>
 #include <asm/lmb.h>
-
-#include "pci.h"
+#include <asm/dart.h>
+#include <asm/ppc-pci.h>
 
 extern int iommu_force_on;
 
-/* physical base of DART registers */
-#define DART_BASE        0xf8033000UL
-
-/* Offset from base to control register */
-#define DARTCNTL   0
-/* Offset from base to exception register */
-#define DARTEXCP   0x10
-/* Offset from base to TLB tag registers */
-#define DARTTAG    0x1000
-
-
-/* Control Register fields */
-
-/* base address of table (pfn) */
-#define DARTCNTL_BASE_MASK    0xfffff
-#define DARTCNTL_BASE_SHIFT   12
-
-#define DARTCNTL_FLUSHTLB     0x400
-#define DARTCNTL_ENABLE       0x200
-
-/* size of table in pages */
-#define DARTCNTL_SIZE_MASK    0x1ff
-#define DARTCNTL_SIZE_SHIFT   0
-
-/* DART table fields */
-#define DARTMAP_VALID   0x80000000
-#define DARTMAP_RPNMASK 0x00ffffff
-
 /* Physical base address and size of the DART table */
 unsigned long dart_tablebase; /* exported to htab_initialize */
 static unsigned long dart_tablesize;
@@ -152,18 +124,21 @@ static void dart_build(struct iommu_table *tbl, long index,
 
         DBG("dart: build at: %lx, %lx, addr: %x\n", index, npages, uaddr);
 
+        index <<= DART_PAGE_FACTOR;
+        npages <<= DART_PAGE_FACTOR;
+
         dp = ((unsigned int*)tbl->it_base) + index;
         
         /* On U3, all memory is contigous, so we can move this
          * out of the loop.
          */
         while (npages--) {
-                rpn = virt_to_abs(uaddr) >> PAGE_SHIFT;
+                rpn = virt_to_abs(uaddr) >> DART_PAGE_SHIFT;
 
                 *(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK);
 
                 rpn++;
-                uaddr += PAGE_SIZE;
+                uaddr += DART_PAGE_SIZE;
         }
 
         dart_dirty = 1;
@@ -181,6 +156,9 @@ static void dart_free(struct iommu_table *tbl, long index, long npages)
 
         DBG("dart: free at: %lx, %lx\n", index, npages);
 
+        index <<= DART_PAGE_FACTOR;
+        npages <<= DART_PAGE_FACTOR;
+
         dp  = ((unsigned int *)tbl->it_base) + index;
                 
         while (npages--)
@@ -209,10 +187,10 @@ static int dart_init(struct device_node *dart_node)
          * that to work around what looks like a problem with the HT bridge
          * prefetching into invalid pages and corrupting data
          */
-        tmp = lmb_alloc(PAGE_SIZE, PAGE_SIZE);
+        tmp = lmb_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
         if (!tmp)
                 panic("U3-DART: Cannot allocate spare page!");
-        dart_emptyval = DARTMAP_VALID | ((tmp >> PAGE_SHIFT) & DARTMAP_RPNMASK);
+        dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) & DARTMAP_RPNMASK);
 
         /* Map in DART registers. FIXME: Use device node to get base address */
         dart = ioremap(DART_BASE, 0x7000);
@@ -223,8 +201,8 @@ static int dart_init(struct device_node *dart_node)
          * table size and enable bit
          */
         regword = DARTCNTL_ENABLE | 
-                ((dart_tablebase >> PAGE_SHIFT) << DARTCNTL_BASE_SHIFT) |
-                (((dart_tablesize >> PAGE_SHIFT) & DARTCNTL_SIZE_MASK)
+                ((dart_tablebase >> DART_PAGE_SHIFT) << DARTCNTL_BASE_SHIFT) |
+                (((dart_tablesize >> DART_PAGE_SHIFT) & DARTCNTL_SIZE_MASK)
                                  << DARTCNTL_SIZE_SHIFT);
         dart_vbase = ioremap(virt_to_abs(dart_tablebase), dart_tablesize);
 
diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
new file mode 100644
index 000000000000..79a784f0e7a9
--- /dev/null
+++ b/arch/powerpc/xmon/Makefile
@@ -0,0 +1,11 @@
+# Makefile for xmon
+
+ifdef CONFIG_PPC64
+EXTRA_CFLAGS += -mno-minimal-toc
+endif
+
+obj-$(CONFIG_8xx)       += start_8xx.o
+obj-$(CONFIG_6xx)       += start_32.o
+obj-$(CONFIG_4xx)       += start_32.o
+obj-$(CONFIG_PPC64)     += start_64.o
+obj-y                   += xmon.o ppc-dis.o ppc-opc.o subr_prf.o setjmp.o
diff --git a/arch/ppc64/xmon/ansidecl.h b/arch/powerpc/xmon/ansidecl.h
index c9b9f0929e9e..c9b9f0929e9e 100644
--- a/arch/ppc64/xmon/ansidecl.h
+++ b/arch/powerpc/xmon/ansidecl.h
diff --git a/arch/ppc64/xmon/nonstdio.h b/arch/powerpc/xmon/nonstdio.h
index 84211a21c6f4..84211a21c6f4 100644
--- a/arch/ppc64/xmon/nonstdio.h
+++ b/arch/powerpc/xmon/nonstdio.h
diff --git a/arch/ppc64/xmon/ppc-dis.c b/arch/powerpc/xmon/ppc-dis.c
index ac0a9d2427e0..ac0a9d2427e0 100644
--- a/arch/ppc64/xmon/ppc-dis.c
+++ b/arch/powerpc/xmon/ppc-dis.c
diff --git a/arch/ppc64/xmon/ppc-opc.c b/arch/powerpc/xmon/ppc-opc.c
index 5ee8fc32f824..5ee8fc32f824 100644
--- a/arch/ppc64/xmon/ppc-opc.c
+++ b/arch/powerpc/xmon/ppc-opc.c
diff --git a/arch/ppc64/xmon/ppc.h b/arch/powerpc/xmon/ppc.h
index 342237e8dd69..342237e8dd69 100644
--- a/arch/ppc64/xmon/ppc.h
+++ b/arch/powerpc/xmon/ppc.h
diff --git a/arch/powerpc/xmon/setjmp.S b/arch/powerpc/xmon/setjmp.S
new file mode 100644
index 000000000000..f8e40dfd2bff
--- /dev/null
+++ b/arch/powerpc/xmon/setjmp.S
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 1996 Paul Mackerras.
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ * NOTE: assert(sizeof(buf) > 23 * sizeof(long))
+ */
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
+
+_GLOBAL(xmon_setjmp)
+        mflr    r0
+        STL     r0,0(r3)
+        STL     r1,SZL(r3)
+        STL     r2,2*SZL(r3)
+        mfcr    r0
+        STL     r0,3*SZL(r3)
+        STL     r13,4*SZL(r3)
+        STL     r14,5*SZL(r3)
+        STL     r15,6*SZL(r3)
+        STL     r16,7*SZL(r3)
+        STL     r17,8*SZL(r3)
+        STL     r18,9*SZL(r3)
+        STL     r19,10*SZL(r3)
+        STL     r20,11*SZL(r3)
+        STL     r21,12*SZL(r3)
+        STL     r22,13*SZL(r3)
+        STL     r23,14*SZL(r3)
+        STL     r24,15*SZL(r3)
+        STL     r25,16*SZL(r3)
+        STL     r26,17*SZL(r3)
+        STL     r27,18*SZL(r3)
+        STL     r28,19*SZL(r3)
+        STL     r29,20*SZL(r3)
+        STL     r30,21*SZL(r3)
+        STL     r31,22*SZL(r3)
+        li      r3,0
+        blr
+
+_GLOBAL(xmon_longjmp)
+        CMPI    r4,0
+        bne     1f
+        li      r4,1
+1:      LDL     r13,4*SZL(r3)
+        LDL     r14,5*SZL(r3)
+        LDL     r15,6*SZL(r3)
+        LDL     r16,7*SZL(r3)
+        LDL     r17,8*SZL(r3)
+        LDL     r18,9*SZL(r3)
+        LDL     r19,10*SZL(r3)
+        LDL     r20,11*SZL(r3)
+        LDL     r21,12*SZL(r3)
+        LDL     r22,13*SZL(r3)
+        LDL     r23,14*SZL(r3)
+        LDL     r24,15*SZL(r3)
+        LDL     r25,16*SZL(r3)
+        LDL     r26,17*SZL(r3)
+        LDL     r27,18*SZL(r3)
+        LDL     r28,19*SZL(r3)
+        LDL     r29,20*SZL(r3)
+        LDL     r30,21*SZL(r3)
+        LDL     r31,22*SZL(r3)
+        LDL     r0,3*SZL(r3)
+        mtcrf   0x38,r0
+        LDL     r0,0(r3)
+        LDL     r1,SZL(r3)
+        LDL     r2,2*SZL(r3)
+        mtlr    r0
+        mr      r3,r4
+        blr
+
+/*
+ * Grab the register values as they are now.
+ * This won't do a particularily good job because we really
+ * want our caller's caller's registers, and our caller has
+ * already executed its prologue.
+ * ToDo: We could reach back into the caller's save area to do
+ * a better job of representing the caller's state (note that
+ * that will be different for 32-bit and 64-bit, because of the
+ * different ABIs, though).
+ */
+_GLOBAL(xmon_save_regs)
+        STL     r0,0*SZL(r3)
+        STL     r2,2*SZL(r3)
+        STL     r3,3*SZL(r3)
+        STL     r4,4*SZL(r3)
+        STL     r5,5*SZL(r3)
+        STL     r6,6*SZL(r3)
+        STL     r7,7*SZL(r3)
+        STL     r8,8*SZL(r3)
+        STL     r9,9*SZL(r3)
+        STL     r10,10*SZL(r3)
+        STL     r11,11*SZL(r3)
+        STL     r12,12*SZL(r3)
+        STL     r13,13*SZL(r3)
+        STL     r14,14*SZL(r3)
+        STL     r15,15*SZL(r3)
+        STL     r16,16*SZL(r3)
+        STL     r17,17*SZL(r3)
+        STL     r18,18*SZL(r3)
+        STL     r19,19*SZL(r3)
+        STL     r20,20*SZL(r3)
+        STL     r21,21*SZL(r3)
+        STL     r22,22*SZL(r3)
+        STL     r23,23*SZL(r3)
+        STL     r24,24*SZL(r3)
+        STL     r25,25*SZL(r3)
+        STL     r26,26*SZL(r3)
+        STL     r27,27*SZL(r3)
+        STL     r28,28*SZL(r3)
+        STL     r29,29*SZL(r3)
+        STL     r30,30*SZL(r3)
+        STL     r31,31*SZL(r3)
+        /* go up one stack frame for SP */
+        LDL     r4,0(r1)
+        STL     r4,1*SZL(r3)
+        /* get caller's LR */
+        LDL     r0,LRSAVE(r4)
+        STL     r0,_NIP-STACK_FRAME_OVERHEAD(r3)
+        STL     r0,_LINK-STACK_FRAME_OVERHEAD(r3)
+        mfmsr   r0
+        STL     r0,_MSR-STACK_FRAME_OVERHEAD(r3)
+        mfctr   r0
+        STL     r0,_CTR-STACK_FRAME_OVERHEAD(r3)
+        mfxer   r0
+        STL     r0,_XER-STACK_FRAME_OVERHEAD(r3)
+        mfcr    r0
+        STL     r0,_CCR-STACK_FRAME_OVERHEAD(r3)
+        li      r0,0
+        STL     r0,_TRAP-STACK_FRAME_OVERHEAD(r3)
+        blr
diff --git a/arch/powerpc/xmon/start_32.c b/arch/powerpc/xmon/start_32.c
new file mode 100644
index 000000000000..69b658c0f760
--- /dev/null
+++ b/arch/powerpc/xmon/start_32.c
@@ -0,0 +1,624 @@
+/*
+ * Copyright (C) 1996 Paul Mackerras.
+ */
+#include <linux/config.h>
+#include <linux/string.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+#include <asm/page.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#include <linux/cuda.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sysrq.h>
+#include <linux/bitops.h>
+#include <asm/xmon.h>
+#include <asm/prom.h>
+#include <asm/bootx.h>
+#include <asm/machdep.h>
+#include <asm/errno.h>
+#include <asm/pmac_feature.h>
+#include <asm/processor.h>
+#include <asm/delay.h>
+#include <asm/btext.h>
+
+static volatile unsigned char __iomem *sccc, *sccd;
+unsigned int TXRDY, RXRDY, DLAB;
+static int xmon_expect(const char *str, unsigned int timeout);
+
+static int use_serial;
+static int use_screen;
+static int via_modem;
+static int xmon_use_sccb;
+static struct device_node *channel_node;
+
+#define TB_SPEED        25000000
+
+static inline unsigned int readtb(void)
+{
+        unsigned int ret;
+
+        asm volatile("mftb %0" : "=r" (ret) :);
+        return ret;
+}
+
+void buf_access(void)
+{
+        if (DLAB)
+                sccd[3] &= ~DLAB;       /* reset DLAB */
+}
+
+extern int adb_init(void);
+
+#ifdef CONFIG_PPC_CHRP
+/*
+ * This looks in the "ranges" property for the primary PCI host bridge
+ * to find the physical address of the start of PCI/ISA I/O space.
+ * It is basically a cut-down version of pci_process_bridge_OF_ranges.
+ */
+static unsigned long chrp_find_phys_io_base(void)
+{
+        struct device_node *node;
+        unsigned int *ranges;
+        unsigned long base = CHRP_ISA_IO_BASE;
+        int rlen = 0;
+        int np;
+
+        node = find_devices("isa");
+        if (node != NULL) {
+                node = node->parent;
+                if (node == NULL || node->type == NULL
+                    || strcmp(node->type, "pci") != 0)
+                        node = NULL;
+        }
+        if (node == NULL)
+                node = find_devices("pci");
+        if (node == NULL)
+                return base;
+
+        ranges = (unsigned int *) get_property(node, "ranges", &rlen);
+        np = prom_n_addr_cells(node) + 5;
+        while ((rlen -= np * sizeof(unsigned int)) >= 0) {
+                if ((ranges[0] >> 24) == 1 && ranges[2] == 0) {
+                        /* I/O space starting at 0, grab the phys base */
+                        base = ranges[np - 3];
+                        break;
+                }
+                ranges += np;
+        }
+        return base;
+}
+#endif /* CONFIG_PPC_CHRP */
+
+#ifdef CONFIG_MAGIC_SYSRQ
+static void sysrq_handle_xmon(int key, struct pt_regs *regs,
+                              struct tty_struct *tty)
+{
+        xmon(regs);
+}
+
+static struct sysrq_key_op sysrq_xmon_op =
+{
+        .handler =      sysrq_handle_xmon,
+        .help_msg =     "Xmon",
+        .action_msg =   "Entering xmon",
+};
+#endif
+
+void
+xmon_map_scc(void)
+{
+#ifdef CONFIG_PPC_MULTIPLATFORM
+        volatile unsigned char __iomem *base;
+
+        if (_machine == _MACH_Pmac) {
+                struct device_node *np;
+                unsigned long addr;
+#ifdef CONFIG_BOOTX_TEXT
+                if (!use_screen && !use_serial
+                    && !machine_is_compatible("iMac")) {
+                        /* see if there is a keyboard in the device tree
+                           with a parent of type "adb" */
+                        for (np = find_devices("keyboard"); np; np = np->next)
+                                if (np->parent && np->parent->type
+                                    && strcmp(np->parent->type, "adb") == 0)
+                                        break;
+
+                        /* needs to be hacked if xmon_printk is to be used
+                           from within find_via_pmu() */
+#ifdef CONFIG_ADB_PMU
+                        if (np != NULL && boot_text_mapped && find_via_pmu())
+                                use_screen = 1;
+#endif
+#ifdef CONFIG_ADB_CUDA
+                        if (np != NULL && boot_text_mapped && find_via_cuda())
+                                use_screen = 1;
+#endif
+                }
+                if (!use_screen && (np = find_devices("escc")) != NULL) {
+                        /*
+                         * look for the device node for the serial port
+                         * we're using and see if it says it has a modem
+                         */
+                        char *name = xmon_use_sccb? "ch-b": "ch-a";
+                        char *slots;
+                        int l;
+
+                        np = np->child;
+                        while (np != NULL && strcmp(np->name, name) != 0)
+                                np = np->sibling;
+                        if (np != NULL) {
+                                /* XXX should parse this properly */
+                                channel_node = np;
+                                slots = get_property(np, "slot-names", &l);
+                                if (slots != NULL && l >= 10
+                                    && strcmp(slots+4, "Modem") == 0)
+                                        via_modem = 1;
+                        }
+                }
+                btext_drawstring("xmon uses ");
+                if (use_screen)
+                        btext_drawstring("screen and keyboard\n");
+                else {
+                        if (via_modem)
+                                btext_drawstring("modem on ");
+                        btext_drawstring(xmon_use_sccb? "printer": "modem");
+                        btext_drawstring(" port\n");
+                }
+
+#endif /* CONFIG_BOOTX_TEXT */
+
+#ifdef CHRP_ESCC
+                addr = 0xc1013020;
+#else
+                addr = 0xf3013020;
+#endif
+                TXRDY = 4;
+                RXRDY = 1;
+        
+                np = find_devices("mac-io");
+                if (np && np->n_addrs)
+                        addr = np->addrs[0].address + 0x13020;
+                base = (volatile unsigned char *) ioremap(addr & PAGE_MASK, PAGE_SIZE);
+                sccc = base + (addr & ~PAGE_MASK);
+                sccd = sccc + 0x10;
+
+        } else {
+                base = (volatile unsigned char *) isa_io_base;
+
+#ifdef CONFIG_PPC_CHRP
+                if (_machine == _MACH_chrp)
+                        base = (volatile unsigned char __iomem *)
+                                ioremap(chrp_find_phys_io_base(), 0x1000);
+#endif
+
+                sccc = base + 0x3fd;
+                sccd = base + 0x3f8;
+                if (xmon_use_sccb) {
+                        sccc -= 0x100;
+                        sccd -= 0x100;
+                }
+                TXRDY = 0x20;
+                RXRDY = 1;
+                DLAB = 0x80;
+        }
+#elif defined(CONFIG_GEMINI)
+        /* should already be mapped by the kernel boot */
+        sccc = (volatile unsigned char __iomem *) 0xffeffb0d;
+        sccd = (volatile unsigned char __iomem *) 0xffeffb08;
+        TXRDY = 0x20;
+        RXRDY = 1;
+        DLAB = 0x80;
+#elif defined(CONFIG_405GP)
+        sccc = (volatile unsigned char __iomem *)0xef600305;
+        sccd = (volatile unsigned char __iomem *)0xef600300;
+        TXRDY = 0x20;
+        RXRDY = 1;
+        DLAB = 0x80;
+#endif /* platform */
+
+        register_sysrq_key('x', &sysrq_xmon_op);
+}
+
+static int scc_initialized = 0;
+
+void xmon_init_scc(void);
+extern void cuda_poll(void);
+
+static inline void do_poll_adb(void)
+{
+#ifdef CONFIG_ADB_PMU
+        if (sys_ctrler == SYS_CTRLER_PMU)
+                pmu_poll_adb();
+#endif /* CONFIG_ADB_PMU */
+#ifdef CONFIG_ADB_CUDA
+        if (sys_ctrler == SYS_CTRLER_CUDA)
+                cuda_poll();
+#endif /* CONFIG_ADB_CUDA */
+}
+
+int
+xmon_write(void *handle, void *ptr, int nb)
+{
+        char *p = ptr;
+        int i, c, ct;
+
+#ifdef CONFIG_SMP
+        static unsigned long xmon_write_lock;
+        int lock_wait = 1000000;
+        int locked;
+
+        while ((locked = test_and_set_bit(0, &xmon_write_lock)) != 0)
+                if (--lock_wait == 0)
+                        break;
+#endif
+
+#ifdef CONFIG_BOOTX_TEXT
+        if (use_screen) {
+                /* write it on the screen */
+                for (i = 0; i < nb; ++i)
+                        btext_drawchar(*p++);
+                goto out;
+        }
+#endif
+        if (!scc_initialized)
+                xmon_init_scc();
+        ct = 0;
+        for (i = 0; i < nb; ++i) {
+                while ((*sccc & TXRDY) == 0)
+                        do_poll_adb();
+                c = p[i];
+                if (c == '\n' && !ct) {
+                        c = '\r';
+                        ct = 1;
+                        --i;
+                } else {
+                        ct = 0;
+                }
+                buf_access();
+                *sccd = c;
+                eieio();
+        }
+
+ out:
+#ifdef CONFIG_SMP
+        if (!locked)
+                clear_bit(0, &xmon_write_lock);
+#endif
+        return nb;
+}
+
+int xmon_wants_key;
+int xmon_adb_keycode;
+
+#ifdef CONFIG_BOOTX_TEXT
+static int xmon_adb_shiftstate;
+
+static unsigned char xmon_keytab[128] =
+        "asdfhgzxcv\000bqwer"                           /* 0x00 - 0x0f */
+        "yt123465=97-80]o"                              /* 0x10 - 0x1f */
+        "u[ip\rlj'k;\\,/nm."                            /* 0x20 - 0x2f */
+        "\t `\177\0\033\0\0\0\0\0\0\0\0\0\0"            /* 0x30 - 0x3f */
+        "\0.\0*\0+\0\0\0\0\0/\r\0-\0"                   /* 0x40 - 0x4f */
+        "\0\0000123456789\0\0\0";                       /* 0x50 - 0x5f */
+
+static unsigned char xmon_shift_keytab[128] =
+        "ASDFHGZXCV\000BQWER"                           /* 0x00 - 0x0f */
+        "YT!@#$^%+(&_*)}O"                              /* 0x10 - 0x1f */
+        "U{IP\rLJ\"K:|<?NM>"                            /* 0x20 - 0x2f */
+        "\t ~\177\0\033\0\0\0\0\0\0\0\0\0\0"            /* 0x30 - 0x3f */
+        "\0.\0*\0+\0\0\0\0\0/\r\0-\0"                   /* 0x40 - 0x4f */
+        "\0\0000123456789\0\0\0";                       /* 0x50 - 0x5f */
+
+static int
+xmon_get_adb_key(void)
+{
+        int k, t, on;
+
+        xmon_wants_key = 1;
+        for (;;) {
+                xmon_adb_keycode = -1;
+                t = 0;
+                on = 0;
+                do {
+                        if (--t < 0) {
+                                on = 1 - on;
+                                btext_drawchar(on? 0xdb: 0x20);
+                                btext_drawchar('\b');
+                                t = 200000;
+                        }
+                        do_poll_adb();
+                } while (xmon_adb_keycode == -1);
+                k = xmon_adb_keycode;
+                if (on)
+                        btext_drawstring(" \b");
+
+                /* test for shift keys */
+                if ((k & 0x7f) == 0x38 || (k & 0x7f) == 0x7b) {
+                        xmon_adb_shiftstate = (k & 0x80) == 0;
+                        continue;
+                }
+                if (k >= 0x80)
+                        continue;       /* ignore up transitions */
+                k = (xmon_adb_shiftstate? xmon_shift_keytab: xmon_keytab)[k];
+                if (k != 0)
+                        break;
+        }
+        xmon_wants_key = 0;
+        return k;
+}
+#endif /* CONFIG_BOOTX_TEXT */
+
+int
+xmon_read(void *handle, void *ptr, int nb)
+{
+    char *p = ptr;
+    int i;
+
+#ifdef CONFIG_BOOTX_TEXT
+    if (use_screen) {
+        for (i = 0; i < nb; ++i)
+            *p++ = xmon_get_adb_key();
+        return i;
+    }
+#endif
+    if (!scc_initialized)
+        xmon_init_scc();
+    for (i = 0; i < nb; ++i) {
+        while ((*sccc & RXRDY) == 0)
+            do_poll_adb();
+        buf_access();
+        *p++ = *sccd;
+    }
+    return i;
+}
+
+int
+xmon_read_poll(void)
+{
+        if ((*sccc & RXRDY) == 0) {
+                do_poll_adb();
+                return -1;
+        }
+        buf_access();
+        return *sccd;
+}
+
+static unsigned char scc_inittab[] = {
+    13, 0,              /* set baud rate divisor */
+    12, 1,
+    14, 1,              /* baud rate gen enable, src=rtxc */
+    11, 0x50,           /* clocks = br gen */
+    5,  0xea,           /* tx 8 bits, assert DTR & RTS */
+    4,  0x46,           /* x16 clock, 1 stop */
+    3,  0xc1,           /* rx enable, 8 bits */
+};
+
+void
+xmon_init_scc(void)
+{
+        if ( _machine == _MACH_chrp )
+        {
+                sccd[3] = 0x83; eieio();        /* LCR = 8N1 + DLAB */
+                sccd[0] = 12; eieio();          /* DLL = 9600 baud */
+                sccd[1] = 0; eieio();
+                sccd[2] = 0; eieio();           /* FCR = 0 */
+                sccd[3] = 3; eieio();           /* LCR = 8N1 */
+                sccd[1] = 0; eieio();           /* IER = 0 */
+        }
+        else if ( _machine == _MACH_Pmac )
+        {
+                int i, x;
+
+                if (channel_node != 0)
+                        pmac_call_feature(
+                                PMAC_FTR_SCC_ENABLE,
+                                channel_node,
+                                PMAC_SCC_ASYNC | PMAC_SCC_FLAG_XMON, 1);
+                        printk(KERN_INFO "Serial port locked ON by debugger !\n");
+                if (via_modem && channel_node != 0) {
+                        unsigned int t0;
+
+                        pmac_call_feature(
+                                PMAC_FTR_MODEM_ENABLE,
+                                channel_node, 0, 1);
+                        printk(KERN_INFO "Modem powered up by debugger !\n");
+                        t0 = readtb();
+                        while (readtb() - t0 < 3*TB_SPEED)
+                                eieio();
+                }
+                /* use the B channel if requested */
+                if (xmon_use_sccb) {
+                        sccc = (volatile unsigned char *)
+                                ((unsigned long)sccc & ~0x20);
+                        sccd = sccc + 0x10;
+                }
+                for (i = 20000; i != 0; --i) {
+                        x = *sccc; eieio();
+                }
+                *sccc = 9; eieio();             /* reset A or B side */
+                *sccc = ((unsigned long)sccc & 0x20)? 0x80: 0x40; eieio();
+                for (i = 0; i < sizeof(scc_inittab); ++i) {
+                        *sccc = scc_inittab[i];
+                        eieio();
+                }
+        }
+        scc_initialized = 1;
+        if (via_modem) {
+                for (;;) {
+                        xmon_write(NULL, "ATE1V1\r", 7);
+                        if (xmon_expect("OK", 5)) {
+                                xmon_write(NULL, "ATA\r", 4);
+                                if (xmon_expect("CONNECT", 40))
+                                        break;
+                        }
+                        xmon_write(NULL, "+++", 3);
+                        xmon_expect("OK", 3);
+                }
+        }
+}
+
+void *xmon_stdin;
+void *xmon_stdout;
+void *xmon_stderr;
+
+int xmon_putc(int c, void *f)
+{
+    char ch = c;
+
+    if (c == '\n')
+        xmon_putc('\r', f);
+    return xmon_write(f, &ch, 1) == 1? c: -1;
+}
+
+int xmon_putchar(int c)
+{
+        return xmon_putc(c, xmon_stdout);
+}
+
+int xmon_fputs(char *str, void *f)
+{
+        int n = strlen(str);
+
+        return xmon_write(f, str, n) == n? 0: -1;
+}
+
+int
+xmon_readchar(void)
+{
+        char ch;
+
+        for (;;) {
+                switch (xmon_read(xmon_stdin, &ch, 1)) {
+                case 1:
+                        return ch;
+                case -1:
+                        xmon_printf("read(stdin) returned -1\r\n", 0, 0);
+                        return -1;
+                }
+        }
+}
+
+static char line[256];
+static char *lineptr;
+static int lineleft;
+
+int xmon_expect(const char *str, unsigned int timeout)
+{
+        int c;
+        unsigned int t0;
+
+        timeout *= TB_SPEED;
+        t0 = readtb();
+        do {
+                lineptr = line;
+                for (;;) {
+                        c = xmon_read_poll();
+                        if (c == -1) {
+                                if (readtb() - t0 > timeout)
+                                        return 0;
+                                continue;
+                        }
+                        if (c == '\n')
+                                break;
+                        if (c != '\r' && lineptr < &line[sizeof(line) - 1])
+                                *lineptr++ = c;
+                }
+                *lineptr = 0;
+        } while (strstr(line, str) == NULL);
+        return 1;
+}
+
+int
+xmon_getchar(void)
+{
+    int c;
+
+    if (lineleft == 0) {
+        lineptr = line;
+        for (;;) {
+            c = xmon_readchar();
+            if (c == -1 || c == 4)
+                break;
+            if (c == '\r' || c == '\n') {
+                *lineptr++ = '\n';
+                xmon_putchar('\n');
+                break;
+            }
+            switch (c) {
+            case 0177:
+            case '\b':
+                if (lineptr > line) {
+                    xmon_putchar('\b');
+                    xmon_putchar(' ');
+                    xmon_putchar('\b');
+                    --lineptr;
+                }
+                break;
+            case 'U' & 0x1F:
+                while (lineptr > line) {
+                    xmon_putchar('\b');
+                    xmon_putchar(' ');
+                    xmon_putchar('\b');
+                    --lineptr;
+                }
+                break;
+            default:
+                if (lineptr >= &line[sizeof(line) - 1])
+                    xmon_putchar('\a');
+                else {
+                    xmon_putchar(c);
+                    *lineptr++ = c;
+                }
+            }
+        }
+        lineleft = lineptr - line;
+        lineptr = line;
+    }
+    if (lineleft == 0)
+        return -1;
+    --lineleft;
+    return *lineptr++;
+}
+
+char *
+xmon_fgets(char *str, int nb, void *f)
+{
+    char *p;
+    int c;
+
+    for (p = str; p < str + nb - 1; ) {
+        c = xmon_getchar();
+        if (c == -1) {
+            if (p == str)
+                return NULL;
+            break;
+        }
+        *p++ = c;
+        if (c == '\n')
+            break;
+    }
+    *p = 0;
+    return str;
+}
+
+void
+xmon_enter(void)
+{
+#ifdef CONFIG_ADB_PMU
+        if (_machine == _MACH_Pmac) {
+                pmu_suspend();
+        }
+#endif
+}
+
+void
+xmon_leave(void)
+{
+#ifdef CONFIG_ADB_PMU
+        if (_machine == _MACH_Pmac) {
+                pmu_resume();
+        }
+#endif
+}
diff --git a/arch/ppc64/xmon/start.c b/arch/powerpc/xmon/start_64.c
index e50c158191e1..e50c158191e1 100644
--- a/arch/ppc64/xmon/start.c
+++ b/arch/powerpc/xmon/start_64.c
diff --git a/arch/powerpc/xmon/start_8xx.c b/arch/powerpc/xmon/start_8xx.c
new file mode 100644
index 000000000000..a48bd594cf61
--- /dev/null
+++ b/arch/powerpc/xmon/start_8xx.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 1996 Paul Mackerras.
+ * Copyright (C) 2000 Dan Malek.
+ * Quick hack of Paul's code to make XMON work on 8xx processors.  Lots
+ * of assumptions, like the SMC1 is used, it has been initialized by the
+ * loader at some point, and we can just stuff and suck bytes.
+ * We rely upon the 8xx uart driver to support us, as the interface
+ * changes between boot up and operational phases of the kernel.
+ */
+#include <linux/string.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+#include <asm/page.h>
+#include <linux/kernel.h>
+#include <asm/8xx_immap.h>
+#include <asm/mpc8xx.h>
+#include <asm/commproc.h>
+
+extern void xmon_printf(const char *fmt, ...);
+extern int xmon_8xx_write(char *str, int nb);
+extern int xmon_8xx_read_poll(void);
+extern int xmon_8xx_read_char(void);
+void prom_drawhex(uint);
+void prom_drawstring(const char *str);
+
+static int use_screen = 1; /* default */
+
+#define TB_SPEED        25000000
+
+static inline unsigned int readtb(void)
+{
+        unsigned int ret;
+
+        asm volatile("mftb %0" : "=r" (ret) :);
+        return ret;
+}
+
+void buf_access(void)
+{
+}
+
+void
+xmon_map_scc(void)
+{
+
+        cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm);
+        use_screen = 0;
+        
+        prom_drawstring("xmon uses serial port\n");
+}
+
+static int scc_initialized = 0;
+
+void xmon_init_scc(void);
+
+int
+xmon_write(void *handle, void *ptr, int nb)
+{
+        char *p = ptr;
+        int i, c, ct;
+
+        if (!scc_initialized)
+                xmon_init_scc();
+
+        return(xmon_8xx_write(ptr, nb));
+}
+
+int xmon_wants_key;
+
+int
+xmon_read(void *handle, void *ptr, int nb)
+{
+        char *p = ptr;
+        int i;
+
+        if (!scc_initialized)
+                xmon_init_scc();
+
+        for (i = 0; i < nb; ++i) {
+                *p++ = xmon_8xx_read_char();
+        }
+        return i;
+}
+
+int
+xmon_read_poll(void)
+{
+        return(xmon_8xx_read_poll());
+}
+
+void
+xmon_init_scc()
+{
+        scc_initialized = 1;
+}
+
+#if 0
+extern int (*prom_entry)(void *);
+
+int
+xmon_exit(void)
+{
+    struct prom_args {
+        char *service;
+    } args;
+
+    for (;;) {
+        args.service = "exit";
+        (*prom_entry)(&args);
+    }
+}
+#endif
+
+void *xmon_stdin;
+void *xmon_stdout;
+void *xmon_stderr;
+
+void
+xmon_init(void)
+{
+}
+
+int
+xmon_putc(int c, void *f)
+{
+    char ch = c;
+
+    if (c == '\n')
+        xmon_putc('\r', f);
+    return xmon_write(f, &ch, 1) == 1? c: -1;
+}
+
+int
+xmon_putchar(int c)
+{
+    return xmon_putc(c, xmon_stdout);
+}
+
+int
+xmon_fputs(char *str, void *f)
+{
+    int n = strlen(str);
+
+    return xmon_write(f, str, n) == n? 0: -1;
+}
+
+int
+xmon_readchar(void)
+{
+    char ch;
+
+    for (;;) {
+        switch (xmon_read(xmon_stdin, &ch, 1)) {
+        case 1:
+            return ch;
+        case -1:
+            xmon_printf("read(stdin) returned -1\r\n", 0, 0);
+            return -1;
+        }
+    }
+}
+
+static char line[256];
+static char *lineptr;
+static int lineleft;
+
+#if 0
+int xmon_expect(const char *str, unsigned int timeout)
+{
+        int c;
+        unsigned int t0;
+
+        timeout *= TB_SPEED;
+        t0 = readtb();
+        do {
+                lineptr = line;
+                for (;;) {
+                        c = xmon_read_poll();
+                        if (c == -1) {
+                                if (readtb() - t0 > timeout)
+                                        return 0;
+                                continue;
+                        }
+                        if (c == '\n')
+                                break;
+                        if (c != '\r' && lineptr < &line[sizeof(line) - 1])
+                                *lineptr++ = c;
+                }
+                *lineptr = 0;
+        } while (strstr(line, str) == NULL);
+        return 1;
+}
+#endif
+
+int
+xmon_getchar(void)
+{
+    int c;
+
+    if (lineleft == 0) {
+        lineptr = line;
+        for (;;) {
+            c = xmon_readchar();
+            if (c == -1 || c == 4)
+                break;
+            if (c == '\r' || c == '\n') {
+                *lineptr++ = '\n';
+                xmon_putchar('\n');
+                break;
+            }
+            switch (c) {
+            case 0177:
+            case '\b':
+                if (lineptr > line) {
+                    xmon_putchar('\b');
+                    xmon_putchar(' ');
+                    xmon_putchar('\b');
+                    --lineptr;
+                }
+                break;
+            case 'U' & 0x1F:
+                while (lineptr > line) {
+                    xmon_putchar('\b');
+                    xmon_putchar(' ');
+                    xmon_putchar('\b');
+                    --lineptr;
+                }
+                break;
+            default:
+                if (lineptr >= &line[sizeof(line) - 1])
+                    xmon_putchar('\a');
+                else {
+                    xmon_putchar(c);
+                    *lineptr++ = c;
+                }
+            }
+        }
+        lineleft = lineptr - line;
+        lineptr = line;
+    }
+    if (lineleft == 0)
+        return -1;
+    --lineleft;
+    return *lineptr++;
+}
+
+char *
+xmon_fgets(char *str, int nb, void *f)
+{
+    char *p;
+    int c;
+
+    for (p = str; p < str + nb - 1; ) {
+        c = xmon_getchar();
+        if (c == -1) {
+            if (p == str)
+                return 0;
+            break;
+        }
+        *p++ = c;
+        if (c == '\n')
+            break;
+    }
+    *p = 0;
+    return str;
+}
+
+void
+prom_drawhex(uint val)
+{
+        unsigned char buf[10];
+
+        int i;
+        for (i = 7;  i >= 0;  i--)
+        {
+                buf[i] = "0123456789abcdef"[val & 0x0f];
+                val >>= 4;
+        }
+        buf[8] = '\0';
+        xmon_fputs(buf, xmon_stdout);
+}
+
+void
+prom_drawstring(const char *str)
+{
+        xmon_fputs(str, xmon_stdout);
+}
diff --git a/arch/ppc64/xmon/subr_prf.c b/arch/powerpc/xmon/subr_prf.c
index 5242bd7d0959..b48738c6dd33 100644
--- a/arch/ppc64/xmon/subr_prf.c
+++ b/arch/powerpc/xmon/subr_prf.c
@@ -18,13 +18,13 @@
 
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/module.h>
 #include <stdarg.h>
 #include "nonstdio.h"
 
 extern int xmon_write(void *, void *, int);
 
-void
-xmon_vfprintf(void *f, const char *fmt, va_list ap)
+void xmon_vfprintf(void *f, const char *fmt, va_list ap)
 {
         static char xmon_buf[2048];
         int n;
@@ -33,8 +33,7 @@ xmon_vfprintf(void *f, const char *fmt, va_list ap)
         xmon_write(f, xmon_buf, n);
 }
 
-void
-xmon_printf(const char *fmt, ...)
+void xmon_printf(const char *fmt, ...)
 {
         va_list ap;
 
@@ -42,9 +41,9 @@ xmon_printf(const char *fmt, ...)
         xmon_vfprintf(stdout, fmt, ap);
         va_end(ap);
 }
+EXPORT_SYMBOL(xmon_printf);
 
-void
-xmon_fprintf(void *f, const char *fmt, ...)
+void xmon_fprintf(void *f, const char *fmt, ...)
 {
         va_list ap;
 
diff --git a/arch/ppc64/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 74e63a886a69..1124f1146202 100644
--- a/arch/ppc64/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -17,25 +17,31 @@
 #include <linux/delay.h>
 #include <linux/kallsyms.h>
 #include <linux/cpumask.h>
+#include <linux/module.h>
 
 #include <asm/ptrace.h>
 #include <asm/string.h>
 #include <asm/prom.h>
 #include <asm/machdep.h>
+#include <asm/xmon.h>
+#ifdef CONFIG_PMAC_BACKLIGHT
+#include <asm/backlight.h>
+#endif
 #include <asm/processor.h>
 #include <asm/pgtable.h>
 #include <asm/mmu.h>
 #include <asm/mmu_context.h>
-#include <asm/paca.h>
-#include <asm/ppcdebug.h>
 #include <asm/cputable.h>
 #include <asm/rtas.h>
 #include <asm/sstep.h>
 #include <asm/bug.h>
+
+#ifdef CONFIG_PPC64
 #include <asm/hvcall.h>
+#include <asm/paca.h>
+#endif
 
 #include "nonstdio.h"
-#include "privinst.h"
 
 #define scanhex xmon_scanhex
 #define skipbl  xmon_skipbl
@@ -58,7 +64,7 @@ static unsigned long ncsum = 4096;
 static int termch;
 static char tmpstr[128];
 
-#define JMP_BUF_LEN     (184/sizeof(long))
+#define JMP_BUF_LEN     23
 static long bus_error_jmp[JMP_BUF_LEN];
 static int catch_memory_errors;
 static long *xmon_fault_jmp[NR_CPUS];
@@ -130,23 +136,36 @@ static void cacheflush(void);
 static int  cpu_cmd(void);
 static void csum(void);
 static void bootcmds(void);
+static void proccall(void);
 void dump_segments(void);
 static void symbol_lookup(void);
 static void xmon_print_symbol(unsigned long address, const char *mid,
                               const char *after);
 static const char *getvecname(unsigned long vec);
 
-static void debug_trace(void);
-
 extern int print_insn_powerpc(unsigned long, unsigned long, int);
 extern void printf(const char *fmt, ...);
 extern void xmon_vfprintf(void *f, const char *fmt, va_list ap);
 extern int xmon_putc(int c, void *f);
 extern int putchar(int ch);
+
+extern void xmon_enter(void);
+extern void xmon_leave(void);
+
 extern int xmon_read_poll(void);
-extern int setjmp(long *);
-extern void longjmp(long *, int);
-extern unsigned long _ASR;
+extern long setjmp(long *);
+extern void longjmp(long *, long);
+extern void xmon_save_regs(struct pt_regs *);
+
+#ifdef CONFIG_PPC64
+#define REG             "%.16lx"
+#define REGS_PER_LINE   4
+#define LAST_VOLATILE   13
+#else
+#define REG             "%.8lx"
+#define REGS_PER_LINE   8
+#define LAST_VOLATILE   12
+#endif
 
 #define GETWORD(v)      (((v)[0] << 24) + ((v)[1] << 16) + ((v)[2] << 8) + (v)[3])
 
@@ -186,47 +205,45 @@ Commands:\n\
   ml    locate a block of memory\n\
   mz    zero a block of memory\n\
   mi    show information about memory allocation\n\
-  p     show the task list\n\
+  p     call a procedure\n\
   r     print registers\n\
   s     single step\n\
   S     print special registers\n\
   t     print backtrace\n\
-  T     Enable/Disable PPCDBG flags\n\
   x     exit monitor and recover\n\
-  X     exit monitor and dont recover\n\
-  u     dump segment table or SLB\n\
-  ?     help\n"
-  "\
-  zr    reboot\n\
+  X     exit monitor and dont recover\n"
+#ifdef CONFIG_PPC64
+"  u    dump segment table or SLB\n"
+#endif
+#ifdef CONFIG_PPC_STD_MMU_32
+"  u    dump segment registers\n"
+#endif
+"  ?    help\n"
+"  zr   reboot\n\
   zh    halt\n"
 ;
 
 static struct pt_regs *xmon_regs;
 
-extern inline void sync(void)
+static inline void sync(void)
 {
         asm volatile("sync; isync");
 }
 
-/* (Ref: 64-bit PowerPC ELF ABI Spplement; Ian Lance Taylor, Zembu Labs).
- A PPC stack frame looks like this:
-
- High Address
-    Back Chain
-    FP reg save area
-    GP reg save area
-    Local var space
-    Parameter save area         (SP+48)
-    TOC save area               (SP+40)
-    link editor doubleword      (SP+32)
-    compiler doubleword         (SP+24)
-    LR save                     (SP+16)
-    CR save                     (SP+8)
-    Back Chain                  (SP+0)
-
- Note that the LR (ret addr) may not be saved in the current frame if
- no functions have been called from the current function.
- */
+static inline void store_inst(void *p)
+{
+        asm volatile ("dcbst 0,%0; sync; icbi 0,%0; isync" : : "r" (p));
+}
+
+static inline void cflush(void *p)
+{
+        asm volatile ("dcbf 0,%0; icbi 0,%0" : : "r" (p));
+}
+
+static inline void cinval(void *p)
+{
+        asm volatile ("dcbi 0,%0; icbi 0,%0" : : "r" (p));
+}
 
 /*
  * Disable surveillance (the service processor watchdog function)
@@ -310,8 +327,8 @@ int xmon_core(struct pt_regs *regs, int fromipi)
         unsigned long timeout;
 #endif
 
-        msr = get_msr();
-        set_msrd(msr & ~MSR_EE);        /* disable interrupts */
+        msr = mfmsr();
+        mtmsr(msr & ~MSR_EE);   /* disable interrupts */
 
         bp = in_breakpoint_table(regs->nip, &offset);
         if (bp != NULL) {
@@ -487,7 +504,7 @@ int xmon_core(struct pt_regs *regs, int fromipi)
 
         insert_cpu_bpts();
 
-        set_msrd(msr);          /* restore interrupt enable */
+        mtmsr(msr);             /* restore interrupt enable */
 
         return cmd != 'X';
 }
@@ -497,56 +514,23 @@ int xmon(struct pt_regs *excp)
         struct pt_regs regs;
 
         if (excp == NULL) {
-                /* Ok, grab regs as they are now.
-                 This won't do a particularily good job because the
-                 prologue has already been executed.
-                 ToDo: We could reach back into the callers save
-                 area to do a better job of representing the
-                 caller's state.
-                 */
-                asm volatile ("std      0,0(%0)\n\
-                        std     1,8(%0)\n\
-                        std     2,16(%0)\n\
-                        std     3,24(%0)\n\
-                        std     4,32(%0)\n\
-                        std     5,40(%0)\n\
-                        std     6,48(%0)\n\
-                        std     7,56(%0)\n\
-                        std     8,64(%0)\n\
-                        std     9,72(%0)\n\
-                        std     10,80(%0)\n\
-                        std     11,88(%0)\n\
-                        std     12,96(%0)\n\
-                        std     13,104(%0)\n\
-                        std     14,112(%0)\n\
-                        std     15,120(%0)\n\
-                        std     16,128(%0)\n\
-                        std     17,136(%0)\n\
-                        std     18,144(%0)\n\
-                        std     19,152(%0)\n\
-                        std     20,160(%0)\n\
-                        std     21,168(%0)\n\
-                        std     22,176(%0)\n\
-                        std     23,184(%0)\n\
-                        std     24,192(%0)\n\
-                        std     25,200(%0)\n\
-                        std     26,208(%0)\n\
-                        std     27,216(%0)\n\
-                        std     28,224(%0)\n\
-                        std     29,232(%0)\n\
-                        std     30,240(%0)\n\
-                        std     31,248(%0)" : : "b" (&regs));
-
-                regs.nip = regs.link = ((unsigned long *)(regs.gpr[1]))[2];
-                regs.msr = get_msr();
-                regs.ctr = get_ctr();
-                regs.xer = get_xer();
-                regs.ccr = get_cr();
-                regs.trap = 0;
+                xmon_save_regs(&regs);
                 excp = &regs;
         }
         return xmon_core(excp, 0);
 }
+EXPORT_SYMBOL(xmon);
+
+irqreturn_t
+xmon_irq(int irq, void *d, struct pt_regs *regs)
+{
+        unsigned long flags;
+        local_irq_save(flags);
+        printf("Keyboard interrupt\n");
+        xmon(regs);
+        local_irq_restore(flags);
+        return IRQ_HANDLED;
+}
 
 int xmon_bpt(struct pt_regs *regs)
 {
@@ -718,7 +702,7 @@ static void insert_cpu_bpts(void)
         if (dabr.enabled)
                 set_dabr(dabr.address | (dabr.enabled & 7));
         if (iabr && cpu_has_feature(CPU_FTR_IABR))
-                set_iabr(iabr->address
+                mtspr(SPRN_IABR, iabr->address
                          | (iabr->enabled & (BP_IABR|BP_IABR_TE)));
 }
 
@@ -746,7 +730,7 @@ static void remove_cpu_bpts(void)
 {
         set_dabr(0);
         if (cpu_has_feature(CPU_FTR_IABR))
-                set_iabr(0);
+                mtspr(SPRN_IABR, 0);
 }
 
 /* Command interpreting routine */
@@ -830,9 +814,6 @@ cmds(struct pt_regs *excp)
                 case '?':
                         printf(help_string);
                         break;
-                case 'p':
-                        show_state();
-                        break;
                 case 'b':
                         bpt_cmds();
                         break;
@@ -846,12 +827,14 @@ cmds(struct pt_regs *excp)
                 case 'z':
                         bootcmds();
                         break;
-                case 'T':
-                        debug_trace();
+                case 'p':
+                        proccall();
                         break;
+#ifdef CONFIG_PPC_STD_MMU
                 case 'u':
                         dump_segments();
                         break;
+#endif
                 default:
                         printf("Unrecognized command: ");
                         do {
@@ -1070,6 +1053,7 @@ bpt_cmds(void)
 
         cmd = inchar();
         switch (cmd) {
+#ifndef CONFIG_8xx
         case 'd':       /* bd - hardware data breakpoint */
                 mode = 7;
                 cmd = inchar();
@@ -1111,6 +1095,7 @@ bpt_cmds(void)
                         iabr = bp;
                 }
                 break;
+#endif
 
         case 'c':
                 if (!scanhex(&a)) {
@@ -1152,7 +1137,7 @@ bpt_cmds(void)
                         /* print all breakpoints */
                         printf("   type            address\n");
                         if (dabr.enabled) {
-                                printf("   data   %.16lx  [", dabr.address);
+                                printf("   data   "REG"  [", dabr.address);
                                 if (dabr.enabled & 1)
                                         printf("r");
                                 if (dabr.enabled & 2)
@@ -1231,6 +1216,18 @@ static void get_function_bounds(unsigned long pc, unsigned long *startp,
 
 static int xmon_depth_to_print = 64;
 
+#ifdef CONFIG_PPC64
+#define LRSAVE_OFFSET           0x10
+#define REG_FRAME_MARKER        0x7265677368657265ul    /* "regshere" */
+#define MARKER_OFFSET           0x60
+#define REGS_OFFSET             0x70
+#else
+#define LRSAVE_OFFSET           4
+#define REG_FRAME_MARKER        0x72656773
+#define MARKER_OFFSET           8
+#define REGS_OFFSET             16
+#endif
+
 static void xmon_show_stack(unsigned long sp, unsigned long lr,
                             unsigned long pc)
 {
@@ -1247,7 +1244,7 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
                         break;
                 }
 
-                if (!mread(sp + 16, &ip, sizeof(unsigned long))
+                if (!mread(sp + LRSAVE_OFFSET, &ip, sizeof(unsigned long))
                     || !mread(sp, &newsp, sizeof(unsigned long))) {
                         printf("Couldn't read stack frame at %lx\n", sp);
                         break;
@@ -1266,7 +1263,7 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
                         get_function_bounds(pc, &fnstart, &fnend);
                         nextip = 0;
                         if (newsp > sp)
-                                mread(newsp + 16, &nextip,
+                                mread(newsp + LRSAVE_OFFSET, &nextip,
                                       sizeof(unsigned long));
                         if (lr == ip) {
                                 if (lr < PAGE_OFFSET
@@ -1280,24 +1277,24 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
                                 xmon_print_symbol(lr, " ", "\n");
                         }
                         if (printip) {
-                                printf("[%.16lx] ", sp);
+                                printf("["REG"] ", sp);
                                 xmon_print_symbol(ip, " ", " (unreliable)\n");
                         }
                         pc = lr = 0;
 
                 } else {
-                        printf("[%.16lx] ", sp);
+                        printf("["REG"] ", sp);
                         xmon_print_symbol(ip, " ", "\n");
                 }
 
                 /* Look for "regshere" marker to see if this is
                    an exception frame. */
-                if (mread(sp + 0x60, &marker, sizeof(unsigned long))
-                    && marker == 0x7265677368657265ul) {
-                        if (mread(sp + 0x70, &regs, sizeof(regs))
+                if (mread(sp + MARKER_OFFSET, &marker, sizeof(unsigned long))
+                    && marker == REG_FRAME_MARKER) {
+                        if (mread(sp + REGS_OFFSET, &regs, sizeof(regs))
                             != sizeof(regs)) {
                                 printf("Couldn't read registers at %lx\n",
-                                       sp + 0x70);
+                                       sp + REGS_OFFSET);
                                 break;
                         }
                         printf("--- Exception: %lx %s at ", regs.trap,
@@ -1371,7 +1368,9 @@ void excprint(struct pt_regs *fp)
         }
 
         printf("  current = 0x%lx\n", current);
+#ifdef CONFIG_PPC64
         printf("  paca    = 0x%lx\n", get_paca());
+#endif
         if (current) {
                 printf("    pid   = %ld, comm = %s\n",
                        current->pid, current->comm);
@@ -1383,7 +1382,7 @@ void excprint(struct pt_regs *fp)
 
 void prregs(struct pt_regs *fp)
 {
-        int n;
+        int n, trap;
         unsigned long base;
         struct pt_regs regs;
 
@@ -1396,7 +1395,7 @@ void prregs(struct pt_regs *fp)
                         __delay(200);
                 } else {
                         catch_memory_errors = 0;
-                        printf("*** Error reading registers from %.16lx\n",
+                        printf("*** Error reading registers from "REG"\n",
                                base);
                         return;
                 }
@@ -1404,22 +1403,36 @@ void prregs(struct pt_regs *fp)
                 fp = &regs;
         }
 
+#ifdef CONFIG_PPC64
         if (FULL_REGS(fp)) {
                 for (n = 0; n < 16; ++n)
-                        printf("R%.2ld = %.16lx   R%.2ld = %.16lx\n",
+                        printf("R%.2ld = "REG"   R%.2ld = "REG"\n",
                                n, fp->gpr[n], n+16, fp->gpr[n+16]);
         } else {
                 for (n = 0; n < 7; ++n)
-                        printf("R%.2ld = %.16lx   R%.2ld = %.16lx\n",
+                        printf("R%.2ld = "REG"   R%.2ld = "REG"\n",
                                n, fp->gpr[n], n+7, fp->gpr[n+7]);
         }
+#else
+        for (n = 0; n < 32; ++n) {
+                printf("R%.2d = %.8x%s", n, fp->gpr[n],
+                       (n & 3) == 3? "\n": "   ");
+                if (n == 12 && !FULL_REGS(fp)) {
+                        printf("\n");
+                        break;
+                }
+        }
+#endif
         printf("pc  = ");
         xmon_print_symbol(fp->nip, " ", "\n");
         printf("lr  = ");
         xmon_print_symbol(fp->link, " ", "\n");
-        printf("msr = %.16lx   cr  = %.8lx\n", fp->msr, fp->ccr);
-        printf("ctr = %.16lx   xer = %.16lx   trap = %8lx\n",
+        printf("msr = "REG"   cr  = %.8lx\n", fp->msr, fp->ccr);
+        printf("ctr = "REG"   xer = "REG"   trap = %4lx\n",
                fp->ctr, fp->xer, fp->trap);
+        trap = TRAP(fp);
+        if (trap == 0x300 || trap == 0x380 || trap == 0x600)
+                printf("dar = "REG"   dsisr = %.8lx\n", fp->dar, fp->dsisr);
 }
 
 void cacheflush(void)
@@ -1519,8 +1532,7 @@ static unsigned long regno;
 extern char exc_prolog;
 extern char dec_exc;
 
-void
-super_regs(void)
+void super_regs(void)
 {
         int cmd;
         unsigned long val;
@@ -1536,12 +1548,14 @@ super_regs(void)
                 asm("mr %0,1" : "=r" (sp) :);
                 asm("mr %0,2" : "=r" (toc) :);
 
-                printf("msr  = %.16lx  sprg0= %.16lx\n", get_msr(), get_sprg0());
-                printf("pvr  = %.16lx  sprg1= %.16lx\n", get_pvr(), get_sprg1()); 
-                printf("dec  = %.16lx  sprg2= %.16lx\n", get_dec(), get_sprg2());
-                printf("sp   = %.16lx  sprg3= %.16lx\n", sp, get_sprg3());
-                printf("toc  = %.16lx  dar  = %.16lx\n", toc, get_dar());
-                printf("srr0 = %.16lx  srr1 = %.16lx\n", get_srr0(), get_srr1());
+                printf("msr  = "REG"  sprg0= "REG"\n",
+                       mfmsr(), mfspr(SPRN_SPRG0));
+                printf("pvr  = "REG"  sprg1= "REG"\n",
+                       mfspr(SPRN_PVR), mfspr(SPRN_SPRG1)); 
+                printf("dec  = "REG"  sprg2= "REG"\n",
+                       mfspr(SPRN_DEC), mfspr(SPRN_SPRG2));
+                printf("sp   = "REG"  sprg3= "REG"\n", sp, mfspr(SPRN_SPRG3));
+                printf("toc  = "REG"  dar  = "REG"\n", toc, mfspr(SPRN_DAR));
 #ifdef CONFIG_PPC_ISERIES
                 // Dump out relevant Paca data areas.
                 printf("Paca: \n");
@@ -1578,11 +1592,6 @@ super_regs(void)
         case 'r':
                 printf("spr %lx = %lx\n", regno, read_spr(regno));
                 break;
-        case 'm':
-                val = get_msr();
-                scanhex(&val);
-                set_msrd(val);
-                break;
         }
         scannl();
 }
@@ -1604,13 +1613,13 @@ mread(unsigned long adrs, void *buf, int size)
                 q = (char *)buf;
                 switch (size) {
                 case 2:
-                        *(short *)q = *(short *)p;
+                        *(u16 *)q = *(u16 *)p;
                         break;
                 case 4:
-                        *(int *)q = *(int *)p;
+                        *(u32 *)q = *(u32 *)p;
                         break;
                 case 8:
-                        *(long *)q = *(long *)p;
+                        *(u64 *)q = *(u64 *)p;
                         break;
                 default:
                         for( ; n < size; ++n) {
@@ -1641,13 +1650,13 @@ mwrite(unsigned long adrs, void *buf, int size)
                 q = (char *) buf;
                 switch (size) {
                 case 2:
-                        *(short *)p = *(short *)q;
+                        *(u16 *)p = *(u16 *)q;
                         break;
                 case 4:
-                        *(int *)p = *(int *)q;
+                        *(u32 *)p = *(u32 *)q;
                         break;
                 case 8:
-                        *(long *)p = *(long *)q;
+                        *(u64 *)p = *(u64 *)q;
                         break;
                 default:
                         for ( ; n < size; ++n) {
@@ -1667,11 +1676,12 @@ mwrite(unsigned long adrs, void *buf, int size)
 }
 
 static int fault_type;
+static int fault_except;
 static char *fault_chars[] = { "--", "**", "##" };
 
-static int
-handle_fault(struct pt_regs *regs)
+static int handle_fault(struct pt_regs *regs)
 {
+        fault_except = TRAP(regs);
         switch (TRAP(regs)) {
         case 0x200:
                 fault_type = 0;
@@ -1960,7 +1970,7 @@ prdump(unsigned long adrs, long ndump)
         unsigned char temp[16];
 
         for (n = ndump; n > 0;) {
-                printf("%.16lx", adrs);
+                printf(REG, adrs);
                 putchar(' ');
                 r = n < 16? n: 16;
                 nr = mread(adrs, temp, r);
@@ -2008,7 +2018,7 @@ ppc_inst_dump(unsigned long adr, long count, int praddr)
                 if (nr == 0) {
                         if (praddr) {
                                 const char *x = fault_chars[fault_type];
-                                printf("%.16lx  %s%s%s%s\n", adr, x, x, x, x);
+                                printf(REG"  %s%s%s%s\n", adr, x, x, x, x);
                         }
                         break;
                 }
@@ -2023,7 +2033,7 @@ ppc_inst_dump(unsigned long adr, long count, int praddr)
                 dotted = 0;
                 last_inst = inst;
                 if (praddr)
-                        printf("%.16lx  %.8x", adr, inst);
+                        printf(REG"  %.8x", adr, inst);
                 printf("\t");
                 print_insn_powerpc(inst, adr, 0);       /* always returns 4 */
                 printf("\n");
@@ -2152,6 +2162,42 @@ memzcan(void)
                 printf("%.8x\n", a - mskip);
 }
 
+void proccall(void)
+{
+        unsigned long args[8];
+        unsigned long ret;
+        int i;
+        typedef unsigned long (*callfunc_t)(unsigned long, unsigned long,
+                        unsigned long, unsigned long, unsigned long,
+                        unsigned long, unsigned long, unsigned long);
+        callfunc_t func;
+
+        if (!scanhex(&adrs))
+                return;
+        if (termch != '\n')
+                termch = 0;
+        for (i = 0; i < 8; ++i)
+                args[i] = 0;
+        for (i = 0; i < 8; ++i) {
+                if (!scanhex(&args[i]) || termch == '\n')
+                        break;
+                termch = 0;
+        }
+        func = (callfunc_t) adrs;
+        ret = 0;
+        if (setjmp(bus_error_jmp) == 0) {
+                catch_memory_errors = 1;
+                sync();
+                ret = func(args[0], args[1], args[2], args[3],
+                           args[4], args[5], args[6], args[7]);
+                sync();
+                printf("return value is %x\n", ret);
+        } else {
+                printf("*** %x exception occurred\n", fault_except);
+        }
+        catch_memory_errors = 0;
+}
+
 /* Input scanning routines */
 int
 skipbl(void)
@@ -2174,7 +2220,12 @@ static char *regnames[N_PTREGS] = {
         "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
         "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
         "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
-        "pc", "msr", "or3", "ctr", "lr", "xer", "ccr", "softe",
+        "pc", "msr", "or3", "ctr", "lr", "xer", "ccr",
+#ifdef CONFIG_PPC64
+        "softe",
+#else
+        "mq",
+#endif
         "trap", "dar", "dsisr", "res"
 };
 
@@ -2280,8 +2331,7 @@ scannl(void)
                 c = inchar();
 }
 
-int
-hexdigit(int c)
+int hexdigit(int c)
 {
         if( '0' <= c && c <= '9' )
                 return c - '0';
@@ -2378,7 +2428,7 @@ static void xmon_print_symbol(unsigned long address, const char *mid,
         const char *name = NULL;
         unsigned long offset, size;
 
-        printf("%.16lx", address);
+        printf(REG, address);
         if (setjmp(bus_error_jmp) == 0) {
                 catch_memory_errors = 1;
                 sync();
@@ -2399,55 +2449,7 @@ static void xmon_print_symbol(unsigned long address, const char *mid,
         printf("%s", after);
 }
 
-static void debug_trace(void)
-{
-        unsigned long val, cmd, on;
-
-        cmd = skipbl();
-        if (cmd == '\n') {
-                /* show current state */
-                unsigned long i;
-                printf("ppc64_debug_switch = 0x%lx\n", ppc64_debug_switch);
-                for (i = 0; i < PPCDBG_NUM_FLAGS ;i++) {
-                        on = PPCDBG_BITVAL(i) & ppc64_debug_switch;
-                        printf("%02x %s %12s   ", i, on ? "on " : "off",  trace_names[i] ? trace_names[i] : "");
-                        if (((i+1) % 3) == 0)
-                                printf("\n");
-                }
-                printf("\n");
-                return;
-        }
-        while (cmd != '\n') {
-                on = 1; /* default if no sign given */
-                while (cmd == '+' || cmd == '-') {
-                        on = (cmd == '+');
-                        cmd = inchar();
-                        if (cmd == ' ' || cmd == '\n') {  /* Turn on or off based on + or - */
-                                ppc64_debug_switch = on ? PPCDBG_ALL:PPCDBG_NONE;
-                                printf("Setting all values to %s...\n", on ? "on" : "off");
-                                if (cmd == '\n') return;
-                                else cmd = skipbl(); 
-                        }
-                        else
-                                termch = cmd;
-                }
-                termch = cmd;   /* not +/- ... let scanhex see it */
-                scanhex((void *)&val);
-                if (val >= 64) {
-                        printf("Value %x out of range:\n", val);
-                        return;
-                }
-                if (on) {
-                        ppc64_debug_switch |= PPCDBG_BITVAL(val);
-                        printf("enable debug %x %s\n", val, trace_names[val] ? trace_names[val] : "");
-                } else {
-                        ppc64_debug_switch &= ~PPCDBG_BITVAL(val);
-                        printf("disable debug %x %s\n", val, trace_names[val] ? trace_names[val] : "");
-                }
-                cmd = skipbl();
-        }
-}
-
+#ifdef CONFIG_PPC64
 static void dump_slb(void)
 {
         int i;
@@ -2484,6 +2486,27 @@ static void dump_stab(void)
         }
 }
 
+void dump_segments(void)
+{
+        if (cpu_has_feature(CPU_FTR_SLB))
+                dump_slb();
+        else
+                dump_stab();
+}
+#endif
+
+#ifdef CONFIG_PPC_STD_MMU_32
+void dump_segments(void)
+{
+        int i;
+
+        printf("sr0-15 =");
+        for (i = 0; i < 16; ++i)
+                printf(" %x", mfsrin(i));
+        printf("\n");
+}
+#endif
+
 void xmon_init(int enable)
 {
         if (enable) {
@@ -2504,11 +2527,3 @@ void xmon_init(int enable)
                 __debugger_fault_handler = NULL;
         }
 }
-
-void dump_segments(void)
-{
-        if (cpu_has_feature(CPU_FTR_SLB))
-                dump_slb();
-        else
-                dump_stab();
-}
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
index 11726e2a4ec8..b42789f8eb76 100644
--- a/arch/ppc/8xx_io/commproc.c
+++ b/arch/ppc/8xx_io/commproc.c
@@ -73,7 +73,7 @@ cpm_mask_irq(unsigned int irq)
 {
         int cpm_vec = irq - CPM_IRQ_OFFSET;
 
-        ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr &= ~(1 << cpm_vec);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, in_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr) & ~(1 << cpm_vec));
 }
 
 static void
@@ -81,7 +81,7 @@ cpm_unmask_irq(unsigned int irq)
 {
         int cpm_vec = irq - CPM_IRQ_OFFSET;
 
-        ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr |= (1 << cpm_vec);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, in_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr) | (1 << cpm_vec));
 }
 
 static void
@@ -95,7 +95,7 @@ cpm_eoi(unsigned int irq)
 {
         int cpm_vec = irq - CPM_IRQ_OFFSET;
 
-        ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cisr = (1 << cpm_vec);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cisr, (1 << cpm_vec));
 }
 
 struct hw_interrupt_type cpm_pic = {
@@ -133,7 +133,7 @@ m8xx_cpm_reset(void)
          * manual recommends it.
          * Bit 25, FAM can also be set to use FEC aggressive mode (860T).
          */
-        imp->im_siu_conf.sc_sdcr = 1;
+        out_be32(&imp->im_siu_conf.sc_sdcr, 1),
 
         /* Reclaim the DP memory for our use. */
         m8xx_cpm_dpinit();
@@ -178,10 +178,10 @@ cpm_interrupt_init(void)
 
         /* Initialize the CPM interrupt controller.
         */
-        ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr =
+        out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr,
             (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) |
-                ((CPM_INTERRUPT/2) << 13) | CICR_HP_MASK;
-        ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr = 0;
+                ((CPM_INTERRUPT/2) << 13) | CICR_HP_MASK);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr, 0);
 
         /* install the CPM interrupt controller routines for the CPM
          * interrupt vectors
@@ -198,7 +198,7 @@ cpm_interrupt_init(void)
         if (setup_irq(CPM_IRQ_OFFSET + CPMVEC_ERROR, &cpm_error_irqaction))
                 panic("Could not allocate CPM error IRQ!");
 
-        ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr |= CICR_IEN;
+        out_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr, in_be32(&((immap_t *)IMAP_ADDR)->im_cpic.cpic_cicr) | CICR_IEN);
 }
 
 /*
@@ -212,8 +212,8 @@ cpm_get_irq(struct pt_regs *regs)
         /* Get the vector by setting the ACK bit and then reading
          * the register.
          */
-        ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr = 1;
-        cpm_vec = ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr;
+        out_be16(&((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr, 1);
+        cpm_vec = in_be16(&((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr);
         cpm_vec >>= 11;
 
         return cpm_vec;
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 776941c75672..114b90fdea24 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -568,6 +568,7 @@ config CHESTNUT
 
 config SPRUCE
         bool "IBM-Spruce"
+        select PPC_INDIRECT_PCI
 
 config HDPU
         bool "Sky-HDPU"
@@ -588,27 +589,35 @@ config EV64260
 
 config LOPEC
         bool "Motorola-LoPEC"
+        select PPC_I8259
 
 config MVME5100
         bool "Motorola-MVME5100"
+        select PPC_INDIRECT_PCI
 
 config PPLUS
         bool "Motorola-PowerPlus"
+        select PPC_I8259
+        select PPC_INDIRECT_PCI
 
 config PRPMC750
         bool "Motorola-PrPMC750"
+        select PPC_INDIRECT_PCI
 
 config PRPMC800
         bool "Motorola-PrPMC800"
+        select PPC_INDIRECT_PCI
 
 config SANDPOINT
         bool "Motorola-Sandpoint"
+        select PPC_I8259
         help
           Select SANDPOINT if configuring for a Motorola Sandpoint X3
           (any flavor).
 
 config RADSTONE_PPC7D
         bool "Radstone Technology PPC7D board"
+        select PPC_I8259
 
 config PAL4
         bool "SBS-Palomar4"
@@ -616,6 +625,7 @@ config PAL4
 config GEMINI
         bool "Synergy-Gemini"
         depends on BROKEN
+        select PPC_INDIRECT_PCI
         help
           Select Gemini if configuring for a Synergy Microsystems' Gemini
           series Single Board Computer.  More information is available at:
@@ -747,13 +757,16 @@ config CPM2
           on it (826x, 827x, 8560).
 
 config PPC_CHRP
-        bool
+        bool "  Common Hardware Reference Platform (CHRP) based machines"
         depends on PPC_MULTIPLATFORM
+        select PPC_I8259
+        select PPC_INDIRECT_PCI
         default y
 
 config PPC_PMAC
-        bool
+        bool "  Apple PowerMac based machines"
         depends on PPC_MULTIPLATFORM
+        select PPC_INDIRECT_PCI
         default y
 
 config PPC_PMAC64
@@ -762,8 +775,10 @@ config PPC_PMAC64
         default y
 
 config PPC_PREP
-        bool
+        bool "  PowerPC Reference Platform (PReP) based machines"
         depends on PPC_MULTIPLATFORM
+        select PPC_I8259
+        select PPC_INDIRECT_PCI
         default y
 
 config PPC_OF
@@ -797,6 +812,7 @@ config MV64360		# Really MV64360 & MV64460
 config MV64X60
         bool
         depends on (GT64260 || MV64360)
+        select PPC_INDIRECT_PCI
         default y
 
 menu "Set bridge options"
@@ -845,6 +861,7 @@ config EPIC_SERIAL_MODE
 config MPC10X_BRIDGE
         bool
         depends on POWERPMC250 || LOPEC || SANDPOINT
+        select PPC_INDIRECT_PCI
         default y
 
 config MPC10X_OPENPIC
@@ -870,6 +887,7 @@ config HARRIER_STORE_GATHERING
 config MVME5100_IPMC761_PRESENT
         bool "MVME5100 configured with an IPMC761"
         depends on MVME5100
+        select PPC_I8259
 
 config SPRUCE_BAUD_33M
         bool "Spruce baud clock support"
@@ -1127,6 +1145,7 @@ menu "Bus options"
 config ISA
         bool "Support for ISA-bus hardware"
         depends on PPC_PREP || PPC_CHRP
+        select PPC_I8259
         help
           Find out whether you have ISA slots on your motherboard.  ISA is the
           name of a bus system, i.e. the way the CPU talks to the other stuff
@@ -1139,6 +1158,17 @@ config GENERIC_ISA_DMA
         depends on POWER3 || POWER4 || 6xx && !CPM2
         default y
 
+config PPC_I8259
+        bool
+        default y if 85xx
+        default n
+
+config PPC_INDIRECT_PCI
+        bool
+        depends on PCI
+        default y if 40x || 44x || 85xx || 83xx
+        default n
+
 config EISA
         bool
         help
@@ -1175,6 +1205,7 @@ config MPC83xx_PCI2
 config PCI_QSPAN
         bool "QSpan PCI"
         depends on !4xx && !CPM2 && 8xx
+        select PPC_I8259
         help
           Say Y here if you have a system based on a Motorola 8xx-series
           embedded processor with a QSPAN PCI interface, otherwise say N.
@@ -1182,6 +1213,7 @@ config PCI_QSPAN
 config PCI_8260
         bool
         depends on PCI && 8260
+        select PPC_INDIRECT_PCI
         default y
 
 config 8260_PCI9
@@ -1368,7 +1400,7 @@ endmenu
 
 source "lib/Kconfig"
 
-source "arch/ppc/oprofile/Kconfig"
+source "arch/powerpc/oprofile/Kconfig"
 
 source "arch/ppc/Kconfig.debug"
 
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 16e2675f3270..94d5716fa7c3 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -26,6 +26,10 @@ CPPFLAGS	+= -Iarch/$(ARCH) -Iarch/$(ARCH)/include
 AFLAGS          += -Iarch/$(ARCH)
 CFLAGS          += -Iarch/$(ARCH) -msoft-float -pipe \
                 -ffixed-r2 -mmultiple
+
+# No AltiVec instruction when building kernel
+CFLAGS          += $(call cc-option, -mno-altivec)
+
 CPP             = $(CC) -E $(CFLAGS)
 # Temporary hack until we have migrated to asm-powerpc
 LINUXINCLUDE    += -Iarch/$(ARCH)/include
@@ -57,10 +61,12 @@ head-$(CONFIG_FSL_BOOKE)	:= arch/ppc/kernel/head_fsl_booke.o
 
 head-$(CONFIG_6xx)              += arch/ppc/kernel/idle_6xx.o
 head-$(CONFIG_POWER4)           += arch/ppc/kernel/idle_power4.o
-head-$(CONFIG_PPC_FPU)          += arch/ppc/kernel/fpu.o
+head-$(CONFIG_PPC_FPU)          += arch/powerpc/kernel/fpu.o
 
-core-y                          += arch/ppc/kernel/ arch/ppc/platforms/ \
-                                   arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
+core-y                          += arch/ppc/kernel/ arch/powerpc/kernel/ \
+                                   arch/ppc/platforms/ \
+                                   arch/ppc/mm/ arch/ppc/lib/ \
+                                   arch/ppc/syslib/ arch/powerpc/sysdev/
 core-$(CONFIG_4xx)              += arch/ppc/platforms/4xx/
 core-$(CONFIG_83xx)             += arch/ppc/platforms/83xx/
 core-$(CONFIG_85xx)             += arch/ppc/platforms/85xx/
@@ -71,7 +77,7 @@ drivers-$(CONFIG_8xx)		+= arch/ppc/8xx_io/
 drivers-$(CONFIG_4xx)           += arch/ppc/4xx_io/
 drivers-$(CONFIG_CPM2)          += arch/ppc/8260_io/
 
-drivers-$(CONFIG_OPROFILE)      += arch/ppc/oprofile/
+drivers-$(CONFIG_OPROFILE)      += arch/powerpc/oprofile/
 
 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
 
diff --git a/arch/ppc/boot/of1275/claim.c b/arch/ppc/boot/of1275/claim.c
index e060292ae2a7..13169a5c4339 100644
--- a/arch/ppc/boot/of1275/claim.c
+++ b/arch/ppc/boot/of1275/claim.c
@@ -29,6 +29,7 @@ claim(unsigned int virt, unsigned int size, unsigned int align)
     args.virt = virt;
     args.size = size;
     args.align = align;
+    args.ret = (void *) 0;
     (*of_prom_entry)(&args);
     return args.ret;
 }
diff --git a/arch/ppc/boot/openfirmware/chrpmain.c b/arch/ppc/boot/openfirmware/chrpmain.c
index effe4a0624b0..245dbd9fc120 100644
--- a/arch/ppc/boot/openfirmware/chrpmain.c
+++ b/arch/ppc/boot/openfirmware/chrpmain.c
@@ -78,7 +78,7 @@ boot(int a1, int a2, void *prom)
         begin_avail = avail_high = avail_ram;
         end_avail = scratch + sizeof(scratch);
         printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len);
-        gunzip(dst, 0x400000, im, &len);
+        gunzip(dst, PROG_SIZE - PROG_START, im, &len);
         printf("done %u bytes\n\r", len);
         printf("%u bytes of heap consumed, max in use %u\n\r",
                avail_high - begin_avail, heap_max);
diff --git a/arch/ppc/boot/openfirmware/coffmain.c b/arch/ppc/boot/openfirmware/coffmain.c
index 04ba9d57e110..2da8855e2be0 100644
--- a/arch/ppc/boot/openfirmware/coffmain.c
+++ b/arch/ppc/boot/openfirmware/coffmain.c
@@ -38,7 +38,7 @@ static char heap[SCRATCH_SIZE];
 static unsigned long ram_start = 0;
 static unsigned long ram_end = 0x1000000;
 
-static unsigned long prog_start = 0x900000;
+static unsigned long prog_start = 0x800000;
 static unsigned long prog_size = 0x700000;
 
 typedef void (*kernel_start_t)(int, int, void *);
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index b1457a8a9c0f..b35346df1e37 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -1,6 +1,7 @@
 #
 # Makefile for the linux kernel.
 #
+ifneq ($(CONFIG_PPC_MERGE),y)
 
 extra-$(CONFIG_PPC_STD_MMU)     := head.o
 extra-$(CONFIG_40x)             := head_4xx.o
@@ -9,13 +10,12 @@ extra-$(CONFIG_FSL_BOOKE)	:= head_fsl_booke.o
 extra-$(CONFIG_8xx)             := head_8xx.o
 extra-$(CONFIG_6xx)             += idle_6xx.o
 extra-$(CONFIG_POWER4)          += idle_power4.o
-extra-$(CONFIG_PPC_FPU)         += fpu.o
 extra-y                         += vmlinux.lds
 
 obj-y                           := entry.o traps.o irq.o idle.o time.o misc.o \
-                                        process.o signal.o ptrace.o align.o \
-                                        semaphore.o syscalls.o setup.o \
-                                        cputable.o ppc_htab.o perfmon.o
+                                        process.o align.o \
+                                        setup.o \
+                                        ppc_htab.o
 obj-$(CONFIG_6xx)               += l2cr.o cpu_setup_6xx.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)  += swsusp.o
 obj-$(CONFIG_POWER4)            += cpu_setup_power4.o
@@ -25,7 +25,6 @@ obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_KGDB)              += ppc-stub.o
 obj-$(CONFIG_SMP)               += smp.o smp-tbsync.o
 obj-$(CONFIG_TAU)               += temp.o
-obj-$(CONFIG_ALTIVEC)           += vecemu.o vector.o
 ifndef CONFIG_E200
 obj-$(CONFIG_FSL_BOOKE)         += perfmon_fsl_booke.o
 endif
@@ -35,3 +34,21 @@ ifndef CONFIG_MATH_EMULATION
 obj-$(CONFIG_8xx)               += softemu8xx.o
 endif
 
+# These are here while we do the architecture merge
+
+else
+obj-y                           := irq.o idle.o \
+                                        align.o
+obj-$(CONFIG_6xx)               += l2cr.o cpu_setup_6xx.o
+obj-$(CONFIG_SOFTWARE_SUSPEND)  += swsusp.o
+obj-$(CONFIG_MODULES)           += module.o
+obj-$(CONFIG_NOT_COHERENT_CACHE)        += dma-mapping.o
+obj-$(CONFIG_PCI)               += pci.o
+obj-$(CONFIG_KGDB)              += ppc-stub.o
+obj-$(CONFIG_SMP)               += smp.o smp-tbsync.o
+obj-$(CONFIG_TAU)               += temp.o
+ifndef CONFIG_E200
+obj-$(CONFIG_FSL_BOOKE)         += perfmon_fsl_booke.o
+endif
+obj-$(CONFIG_KEXEC)             += machine_kexec.o relocate_kernel.o
+endif
diff --git a/arch/ppc/kernel/align.c b/arch/ppc/kernel/align.c
index ff81da9598d8..ab398c4b70b6 100644
--- a/arch/ppc/kernel/align.c
+++ b/arch/ppc/kernel/align.c
@@ -375,7 +375,7 @@ fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
                 preempt_disable();
                 enable_kernel_fp();
-                cvt_fd(&data.f, &data.d, &current->thread.fpscr);
+                cvt_fd(&data.f, &data.d, &current->thread);
                 preempt_enable();
 #else
                 return 0;
@@ -385,7 +385,7 @@ fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
                 preempt_disable();
                 enable_kernel_fp();
-                cvt_df(&data.d, &data.f, &current->thread.fpscr);
+                cvt_df(&data.d, &data.f, &current->thread);
                 preempt_enable();
 #else
                 return 0;
diff --git a/arch/ppc/kernel/asm-offsets.c b/arch/ppc/kernel/asm-offsets.c
index d9ad1d776d0e..968261d69572 100644
--- a/arch/ppc/kernel/asm-offsets.c
+++ b/arch/ppc/kernel/asm-offsets.c
@@ -130,10 +130,10 @@ main(void)
         DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
         DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
 
+        DEFINE(TI_SC_NOERR, offsetof(struct thread_info, syscall_noerror));
         DEFINE(TI_TASK, offsetof(struct thread_info, task));
         DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
         DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
-        DEFINE(TI_LOCAL_FLAGS, offsetof(struct thread_info, local_flags));
         DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
         DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
 
@@ -141,6 +141,7 @@ main(void)
         DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
         DEFINE(pbe_next, offsetof(struct pbe, next));
 
+        DEFINE(TASK_SIZE, TASK_SIZE);
         DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
         return 0;
 }
diff --git a/arch/ppc/kernel/cpu_setup_6xx.S b/arch/ppc/kernel/cpu_setup_6xx.S
index ba396438ede3..55ed7716636f 100644
--- a/arch/ppc/kernel/cpu_setup_6xx.S
+++ b/arch/ppc/kernel/cpu_setup_6xx.S
@@ -17,8 +17,6 @@
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
 
-_GLOBAL(__setup_cpu_601)
-        blr
 _GLOBAL(__setup_cpu_603)
         b       setup_common_caches
 _GLOBAL(__setup_cpu_604)
@@ -292,10 +290,10 @@ _GLOBAL(__init_fpu_registers)
 #define CS_SIZE         32
 
         .data
-        .balign L1_CACHE_LINE_SIZE
+        .balign L1_CACHE_BYTES
 cpu_state_storage:
         .space  CS_SIZE
-        .balign L1_CACHE_LINE_SIZE,0
+        .balign L1_CACHE_BYTES,0
         .text
 
 /* Called in normal context to backup CPU 0 state. This
diff --git a/arch/ppc/kernel/cpu_setup_power4.S b/arch/ppc/kernel/cpu_setup_power4.S
index 7e4fbb653724..d7bfd60e21fc 100644
--- a/arch/ppc/kernel/cpu_setup_power4.S
+++ b/arch/ppc/kernel/cpu_setup_power4.S
@@ -63,8 +63,6 @@ _GLOBAL(__970_cpu_preinit)
         isync
         blr
 
-_GLOBAL(__setup_cpu_power4)
-        blr
 _GLOBAL(__setup_cpu_ppc970)
         mfspr   r0,SPRN_HID0
         li      r11,5                   /* clear DOZE and SLEEP */
@@ -88,10 +86,10 @@ _GLOBAL(__setup_cpu_ppc970)
 #define CS_SIZE         32
 
         .data
-        .balign L1_CACHE_LINE_SIZE
+        .balign L1_CACHE_BYTES
 cpu_state_storage:      
         .space  CS_SIZE
-        .balign L1_CACHE_LINE_SIZE,0
+        .balign L1_CACHE_BYTES,0
         .text
         
 /* Called in normal context to backup CPU 0 state. This
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index 03d4886869f3..f044edbb454f 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -200,9 +200,8 @@ _GLOBAL(DoSyscall)
         bl      do_show_syscall
 #endif /* SHOW_SYSCALLS */
         rlwinm  r10,r1,0,0,18   /* current_thread_info() */
-        lwz     r11,TI_LOCAL_FLAGS(r10)
-        rlwinm  r11,r11,0,~_TIFL_FORCE_NOERROR
-        stw     r11,TI_LOCAL_FLAGS(r10)
+        li      r11,0
+        stb     r11,TI_SC_NOERR(r10)
         lwz     r11,TI_FLAGS(r10)
         andi.   r11,r11,_TIF_SYSCALL_T_OR_A
         bne-    syscall_dotrace
@@ -227,8 +226,8 @@ ret_from_syscall:
         cmplw   0,r3,r11
         rlwinm  r12,r1,0,0,18   /* current_thread_info() */
         blt+    30f
-        lwz     r11,TI_LOCAL_FLAGS(r12)
-        andi.   r11,r11,_TIFL_FORCE_NOERROR
+        lbz     r11,TI_SC_NOERR(r12)
+        cmpwi   r11,0
         bne     30f
         neg     r3,r3
         lwz     r10,_CCR(r1)    /* Set SO bit in CR */
@@ -633,7 +632,8 @@ sigreturn_exit:
         rlwinm  r12,r1,0,0,18   /* current_thread_info() */
         lwz     r9,TI_FLAGS(r12)
         andi.   r0,r9,_TIF_SYSCALL_T_OR_A
-        bnel-   do_syscall_trace_leave
+        beq+    ret_from_except_full
+        bl      do_syscall_trace_leave
         /* fall through */
 
         .globl  ret_from_except_full
diff --git a/arch/ppc/kernel/head.S b/arch/ppc/kernel/head.S
index 1960fb8c259c..c5a890dca9cf 100644
--- a/arch/ppc/kernel/head.S
+++ b/arch/ppc/kernel/head.S
@@ -349,12 +349,12 @@ i##n:								\
 
 /* System reset */
 /* core99 pmac starts the seconary here by changing the vector, and
-   putting it back to what it was (UnknownException) when done.  */
+   putting it back to what it was (unknown_exception) when done.  */
 #if defined(CONFIG_GEMINI) && defined(CONFIG_SMP)
         . = 0x100
         b       __secondary_start_gemini
 #else
-        EXCEPTION(0x100, Reset, UnknownException, EXC_XFER_STD)
+        EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
 #endif
 
 /* Machine check */
@@ -389,7 +389,7 @@ i##n:								\
         cmpwi   cr1,r4,0
         bne     cr1,1f
 #endif
-        EXC_XFER_STD(0x200, MachineCheckException)
+        EXC_XFER_STD(0x200, machine_check_exception)
 #ifdef CONFIG_PPC_CHRP
 1:      b       machine_check_in_rtas
 #endif
@@ -456,10 +456,10 @@ Alignment:
         mfspr   r5,SPRN_DSISR
         stw     r5,_DSISR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0x600, AlignmentException)
+        EXC_XFER_EE(0x600, alignment_exception)
 
 /* Program check exception */
-        EXCEPTION(0x700, ProgramCheck, ProgramCheckException, EXC_XFER_STD)
+        EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD)
 
 /* Floating-point unavailable */
         . = 0x800
@@ -467,13 +467,13 @@ FPUnavailable:
         EXCEPTION_PROLOG
         bne     load_up_fpu             /* if from user, just load it up */
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE_LITE(0x800, KernelFP)
+        EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception)
 
 /* Decrementer */
         EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE)
 
-        EXCEPTION(0xa00, Trap_0a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0xb00, Trap_0b, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xa00, Trap_0a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xb00, Trap_0b, unknown_exception, EXC_XFER_EE)
 
 /* System call */
         . = 0xc00
@@ -482,8 +482,8 @@ SystemCall:
         EXC_XFER_EE_LITE(0xc00, DoSyscall)
 
 /* Single step - not used on 601 */
-        EXCEPTION(0xd00, SingleStep, SingleStepException, EXC_XFER_STD)
-        EXCEPTION(0xe00, Trap_0e, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xd00, SingleStep, single_step_exception, EXC_XFER_STD)
+        EXCEPTION(0xe00, Trap_0e, unknown_exception, EXC_XFER_EE)
 
 /*
  * The Altivec unavailable trap is at 0x0f20.  Foo.
@@ -502,7 +502,7 @@ SystemCall:
 Trap_0f:
         EXCEPTION_PROLOG
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0xf00, UnknownException)
+        EXC_XFER_EE(0xf00, unknown_exception)
 
 /*
  * Handle TLB miss for instruction on 603/603e.
@@ -702,44 +702,44 @@ DataStoreTLBMiss:
         rfi
 
 #ifndef CONFIG_ALTIVEC
-#define AltivecAssistException  UnknownException
+#define altivec_assist_exception        unknown_exception
 #endif
 
-        EXCEPTION(0x1300, Trap_13, InstructionBreakpoint, EXC_XFER_EE)
+        EXCEPTION(0x1300, Trap_13, instruction_breakpoint_exception, EXC_XFER_EE)
         EXCEPTION(0x1400, SMI, SMIException, EXC_XFER_EE)
-        EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
 #ifdef CONFIG_POWER4
-        EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1700, Trap_17, AltivecAssistException, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, altivec_assist_exception, EXC_XFER_EE)
         EXCEPTION(0x1800, Trap_18, TAUException, EXC_XFER_STD)
 #else /* !CONFIG_POWER4 */
-        EXCEPTION(0x1600, Trap_16, AltivecAssistException, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, altivec_assist_exception, EXC_XFER_EE)
         EXCEPTION(0x1700, Trap_17, TAUException, EXC_XFER_STD)
-        EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_POWER4 */
-        EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1a00, Trap_1a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1b00, Trap_1b, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1c00, Trap_1c, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1d00, Trap_1d, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1e00, Trap_1e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1f00, Trap_1f, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1a00, Trap_1a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1b00, Trap_1b, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1c00, Trap_1c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_EE)
         EXCEPTION(0x2000, RunMode, RunModeException, EXC_XFER_EE)
-        EXCEPTION(0x2100, Trap_21, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2200, Trap_22, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2300, Trap_23, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2400, Trap_24, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2500, Trap_25, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2600, Trap_26, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2700, Trap_27, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2800, Trap_28, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2900, Trap_29, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2a00, Trap_2a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2b00, Trap_2b, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2c00, Trap_2c, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2d00, Trap_2d, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2e00, Trap_2e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x2f00, MOLTrampoline, UnknownException, EXC_XFER_EE_LITE)
+        EXCEPTION(0x2100, Trap_21, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2200, Trap_22, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2300, Trap_23, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2400, Trap_24, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2500, Trap_25, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2600, Trap_26, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2700, Trap_27, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2800, Trap_28, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2900, Trap_29, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2a00, Trap_2a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2b00, Trap_2b, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2c00, Trap_2c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2d00, Trap_2d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2e00, Trap_2e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x2f00, MOLTrampoline, unknown_exception, EXC_XFER_EE_LITE)
 
         .globl mol_trampoline
         .set mol_trampoline, i0x2f00
@@ -751,7 +751,7 @@ AltiVecUnavailable:
 #ifdef CONFIG_ALTIVEC
         bne     load_up_altivec         /* if from user, just load it up */
 #endif /* CONFIG_ALTIVEC */
-        EXC_XFER_EE_LITE(0xf20, AltivecUnavailException)
+        EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception)
 
 #ifdef CONFIG_PPC64BRIDGE
 DataAccess:
@@ -767,12 +767,12 @@ DataSegment:
         addi    r3,r1,STACK_FRAME_OVERHEAD
         mfspr   r4,SPRN_DAR
         stw     r4,_DAR(r11)
-        EXC_XFER_STD(0x380, UnknownException)
+        EXC_XFER_STD(0x380, unknown_exception)
 
 InstructionSegment:
         EXCEPTION_PROLOG
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_STD(0x480, UnknownException)
+        EXC_XFER_STD(0x480, unknown_exception)
 #endif /* CONFIG_PPC64BRIDGE */
 
 #ifdef CONFIG_ALTIVEC
@@ -804,7 +804,7 @@ load_up_altivec:
         beq     1f
         add     r4,r4,r6
         addi    r4,r4,THREAD    /* want THREAD of last_task_used_altivec */
-        SAVE_32VR(0,r10,r4)
+        SAVE_32VRS(0,r10,r4)
         mfvscr  vr0
         li      r10,THREAD_VSCR
         stvx    vr0,r10,r4
@@ -824,7 +824,7 @@ load_up_altivec:
         stw     r4,THREAD_USED_VR(r5)
         lvx     vr0,r10,r5
         mtvscr  vr0
-        REST_32VR(0,r10,r5)
+        REST_32VRS(0,r10,r5)
 #ifndef CONFIG_SMP
         subi    r4,r5,THREAD
         sub     r4,r4,r6
@@ -870,7 +870,7 @@ giveup_altivec:
         addi    r3,r3,THREAD            /* want THREAD of task */
         lwz     r5,PT_REGS(r3)
         cmpwi   0,r5,0
-        SAVE_32VR(0, r4, r3)
+        SAVE_32VRS(0, r4, r3)
         mfvscr  vr0
         li      r4,THREAD_VSCR
         stvx    vr0,r4,r3
@@ -916,7 +916,7 @@ relocate_kernel:
 copy_and_flush:
         addi    r5,r5,-4
         addi    r6,r6,-4
-4:      li      r0,L1_CACHE_LINE_SIZE/4
+4:      li      r0,L1_CACHE_BYTES/4
         mtctr   r0
 3:      addi    r6,r6,4                 /* copy a cache line */
         lwzx    r0,r6,r4
@@ -1059,7 +1059,6 @@ __secondary_start:
 
         lis     r3,-KERNELBASE@h
         mr      r4,r24
-        bl      identify_cpu
         bl      call_setup_cpu          /* Call setup_cpu for this CPU */
 #ifdef CONFIG_6xx
         lis     r3,-KERNELBASE@h
@@ -1109,11 +1108,6 @@ __secondary_start:
  * Those generic dummy functions are kept for CPUs not
  * included in CONFIG_6xx
  */
-_GLOBAL(__setup_cpu_power3)
-        blr
-_GLOBAL(__setup_cpu_generic)
-        blr
-
 #if !defined(CONFIG_6xx) && !defined(CONFIG_POWER4)
 _GLOBAL(__save_cpu_setup)
         blr
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 599245b0407e..8b49679fad54 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -309,13 +309,13 @@ skpinv:	addi	r4,r4,1				/* Increment */
 
 interrupt_base:
         /* Critical Input Interrupt */
-        CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException)
+        CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
 
         /* Machine Check Interrupt */
 #ifdef CONFIG_440A
-        MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #else
-        CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #endif
 
         /* Data Storage Interrupt */
@@ -442,7 +442,7 @@ interrupt_base:
 #ifdef CONFIG_PPC_FPU
         FP_UNAVAILABLE_EXCEPTION
 #else
-        EXCEPTION(0x2010, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2010, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
 #endif
 
         /* System Call Interrupt */
@@ -451,21 +451,21 @@ interrupt_base:
         EXC_XFER_EE_LITE(0x0c00, DoSyscall)
 
         /* Auxillary Processor Unavailable Interrupt */
-        EXCEPTION(0x2020, AuxillaryProcessorUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2020, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
 
         /* Decrementer Interrupt */
         DECREMENTER_EXCEPTION
 
         /* Fixed Internal Timer Interrupt */
         /* TODO: Add FIT support */
-        EXCEPTION(0x1010, FixedIntervalTimer, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1010, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
 
         /* Watchdog Timer Interrupt */
         /* TODO: Add watchdog support */
 #ifdef CONFIG_BOOKE_WDT
         CRITICAL_EXCEPTION(0x1020, WatchdogTimer, WatchdogException)
 #else
-        CRITICAL_EXCEPTION(0x1020, WatchdogTimer, UnknownException)
+        CRITICAL_EXCEPTION(0x1020, WatchdogTimer, unknown_exception)
 #endif
 
         /* Data TLB Error Interrupt */
@@ -743,14 +743,18 @@ _GLOBAL(set_context)
  * goes at the beginning of the data segment, which is page-aligned.
  */
         .data
-_GLOBAL(sdata)
-_GLOBAL(empty_zero_page)
+        .align  12
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
         .space  4096
 
 /*
  * To support >32-bit physical addresses, we use an 8KB pgdir.
  */
-_GLOBAL(swapper_pg_dir)
+        .globl  swapper_pg_dir
+swapper_pg_dir:
         .space  8192
 
 /* Reserved 4k for the critical exception stack & 4k for the machine
@@ -759,13 +763,15 @@ _GLOBAL(swapper_pg_dir)
         .align 12
 exception_stack_bottom:
         .space  BOOKE_EXCEPTION_STACK_SIZE
-_GLOBAL(exception_stack_top)
+        .globl  exception_stack_top
+exception_stack_top:
 
 /*
  * This space gets a copy of optional info passed to us by the bootstrap
  * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
  */
-_GLOBAL(cmd_line)
+        .globl  cmd_line
+cmd_line:
         .space  512
 
 /*
@@ -774,5 +780,3 @@ _GLOBAL(cmd_line)
  */
 abatron_pteptrs:
         .space  8
-
-
diff --git a/arch/ppc/kernel/head_4xx.S b/arch/ppc/kernel/head_4xx.S
index 8562b807b37c..10c261c67021 100644
--- a/arch/ppc/kernel/head_4xx.S
+++ b/arch/ppc/kernel/head_4xx.S
@@ -245,12 +245,12 @@ label:
 /*
  * 0x0100 - Critical Interrupt Exception
  */
-        CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, UnknownException)
+        CRITICAL_EXCEPTION(0x0100, CriticalInterrupt, unknown_exception)
 
 /*
  * 0x0200 - Machine Check Exception
  */
-        CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 
 /*
  * 0x0300 - Data Storage Exception
@@ -405,7 +405,7 @@ label:
         mfspr   r4,SPRN_DEAR            /* Grab the DEAR and save it */
         stw     r4,_DEAR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0x600, AlignmentException)
+        EXC_XFER_EE(0x600, alignment_exception)
 
 /* 0x0700 - Program Exception */
         START_EXCEPTION(0x0700, ProgramCheck)
@@ -413,21 +413,21 @@ label:
         mfspr   r4,SPRN_ESR             /* Grab the ESR and save it */
         stw     r4,_ESR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_STD(0x700, ProgramCheckException)
+        EXC_XFER_STD(0x700, program_check_exception)
 
-        EXCEPTION(0x0800, Trap_08, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0900, Trap_09, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0A00, Trap_0A, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0B00, Trap_0B, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x0800, Trap_08, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0900, Trap_09, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0A00, Trap_0A, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0B00, Trap_0B, unknown_exception, EXC_XFER_EE)
 
 /* 0x0C00 - System Call Exception */
         START_EXCEPTION(0x0C00, SystemCall)
         NORMAL_EXCEPTION_PROLOG
         EXC_XFER_EE_LITE(0xc00, DoSyscall)
 
-        EXCEPTION(0x0D00, Trap_0D, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0E00, Trap_0E, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x0F00, Trap_0F, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x0D00, Trap_0D, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0E00, Trap_0E, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x0F00, Trap_0F, unknown_exception, EXC_XFER_EE)
 
 /* 0x1000 - Programmable Interval Timer (PIT) Exception */
         START_EXCEPTION(0x1000, Decrementer)
@@ -444,14 +444,14 @@ label:
 
 /* 0x1010 - Fixed Interval Timer (FIT) Exception
 */
-        STND_EXCEPTION(0x1010,  FITException,           UnknownException)
+        STND_EXCEPTION(0x1010,  FITException,           unknown_exception)
 
 /* 0x1020 - Watchdog Timer (WDT) Exception
 */
 #ifdef CONFIG_BOOKE_WDT
         CRITICAL_EXCEPTION(0x1020, WDTException, WatchdogException)
 #else
-        CRITICAL_EXCEPTION(0x1020, WDTException, UnknownException)
+        CRITICAL_EXCEPTION(0x1020, WDTException, unknown_exception)
 #endif
 #endif
 
@@ -656,25 +656,25 @@ label:
         mfspr   r10, SPRN_SPRG0
         b       InstructionAccess
 
-        EXCEPTION(0x1300, Trap_13, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1400, Trap_14, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1300, Trap_13, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1400, Trap_14, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
 #ifdef CONFIG_IBM405_ERR51
         /* 405GP errata 51 */
         START_EXCEPTION(0x1700, Trap_17)
         b DTLBMiss
 #else
-        EXCEPTION(0x1700, Trap_17, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE)
 #endif
-        EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1A00, Trap_1A, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1B00, Trap_1B, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1C00, Trap_1C, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1D00, Trap_1D, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1E00, Trap_1E, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1F00, Trap_1F, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1A00, Trap_1A, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1B00, Trap_1B, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1C00, Trap_1C, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1D00, Trap_1D, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1E00, Trap_1E, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1F00, Trap_1F, unknown_exception, EXC_XFER_EE)
 
 /* Check for a single step debug exception while in an exception
  * handler before state has been saved.  This is to catch the case
@@ -988,10 +988,14 @@ _GLOBAL(set_context)
  * goes at the beginning of the data segment, which is page-aligned.
  */
         .data
-_GLOBAL(sdata)
-_GLOBAL(empty_zero_page)
+        .align  12
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
         .space  4096
-_GLOBAL(swapper_pg_dir)
+        .globl  swapper_pg_dir
+swapper_pg_dir:
         .space  4096
 
 
@@ -1001,12 +1005,14 @@ _GLOBAL(swapper_pg_dir)
 exception_stack_bottom:
         .space  4096
 critical_stack_top:
-_GLOBAL(exception_stack_top)
+        .globl  exception_stack_top
+exception_stack_top:
 
 /* This space gets a copy of optional info passed to us by the bootstrap
  * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
  */
-_GLOBAL(cmd_line)
+        .globl  cmd_line
+cmd_line:
         .space  512
 
 /* Room for two PTE pointers, usually the kernel and current user pointers
diff --git a/arch/ppc/kernel/head_8xx.S b/arch/ppc/kernel/head_8xx.S
index cb1a3a54a026..de0978742221 100644
--- a/arch/ppc/kernel/head_8xx.S
+++ b/arch/ppc/kernel/head_8xx.S
@@ -203,7 +203,7 @@ i##n:								\
                           ret_from_except)
 
 /* System reset */
-        EXCEPTION(0x100, Reset, UnknownException, EXC_XFER_STD)
+        EXCEPTION(0x100, Reset, unknown_exception, EXC_XFER_STD)
 
 /* Machine check */
         . = 0x200
@@ -214,7 +214,7 @@ MachineCheck:
         mfspr r5,SPRN_DSISR
         stw r5,_DSISR(r11)
         addi r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_STD(0x200, MachineCheckException)
+        EXC_XFER_STD(0x200, machine_check_exception)
 
 /* Data access exception.
  * This is "never generated" by the MPC8xx.  We jump to it for other
@@ -252,20 +252,20 @@ Alignment:
         mfspr   r5,SPRN_DSISR
         stw     r5,_DSISR(r11)
         addi    r3,r1,STACK_FRAME_OVERHEAD
-        EXC_XFER_EE(0x600, AlignmentException)
+        EXC_XFER_EE(0x600, alignment_exception)
 
 /* Program check exception */
-        EXCEPTION(0x700, ProgramCheck, ProgramCheckException, EXC_XFER_STD)
+        EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD)
 
 /* No FPU on MPC8xx.  This exception is not supposed to happen.
 */
-        EXCEPTION(0x800, FPUnavailable, UnknownException, EXC_XFER_STD)
+        EXCEPTION(0x800, FPUnavailable, unknown_exception, EXC_XFER_STD)
 
 /* Decrementer */
         EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE)
 
-        EXCEPTION(0xa00, Trap_0a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0xb00, Trap_0b, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xa00, Trap_0a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xb00, Trap_0b, unknown_exception, EXC_XFER_EE)
 
 /* System call */
         . = 0xc00
@@ -274,9 +274,9 @@ SystemCall:
         EXC_XFER_EE_LITE(0xc00, DoSyscall)
 
 /* Single step - not used on 601 */
-        EXCEPTION(0xd00, SingleStep, SingleStepException, EXC_XFER_STD)
-        EXCEPTION(0xe00, Trap_0e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0xf00, Trap_0f, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0xd00, SingleStep, single_step_exception, EXC_XFER_STD)
+        EXCEPTION(0xe00, Trap_0e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0xf00, Trap_0f, unknown_exception, EXC_XFER_EE)
 
 /* On the MPC8xx, this is a software emulation interrupt.  It occurs
  * for all unimplemented and illegal instructions.
@@ -540,22 +540,22 @@ DataTLBError:
 #endif
         b       DataAccess
 
-        EXCEPTION(0x1500, Trap_15, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1600, Trap_16, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1700, Trap_17, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1800, Trap_18, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1900, Trap_19, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1a00, Trap_1a, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1b00, Trap_1b, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1500, Trap_15, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1600, Trap_16, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1700, Trap_17, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1800, Trap_18, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1900, Trap_19, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1a00, Trap_1a, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1b00, Trap_1b, unknown_exception, EXC_XFER_EE)
 
 /* On the MPC8xx, these next four traps are used for development
  * support of breakpoints and such.  Someday I will get around to
  * using them.
  */
-        EXCEPTION(0x1c00, Trap_1c, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1d00, Trap_1d, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1e00, Trap_1e, UnknownException, EXC_XFER_EE)
-        EXCEPTION(0x1f00, Trap_1f, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x1c00, Trap_1c, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_EE)
+        EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_EE)
 
         . = 0x2000
 
diff --git a/arch/ppc/kernel/head_booke.h b/arch/ppc/kernel/head_booke.h
index 9342acf12e72..aeb349b47af3 100644
--- a/arch/ppc/kernel/head_booke.h
+++ b/arch/ppc/kernel/head_booke.h
@@ -335,7 +335,7 @@ label:
         mfspr   r4,SPRN_DEAR;           /* Grab the DEAR and save it */       \
         stw     r4,_DEAR(r11);                                                \
         addi    r3,r1,STACK_FRAME_OVERHEAD;                                   \
-        EXC_XFER_EE(0x0600, AlignmentException)
+        EXC_XFER_EE(0x0600, alignment_exception)
 
 #define PROGRAM_EXCEPTION                                                     \
         START_EXCEPTION(Program)                                              \
@@ -343,7 +343,7 @@ label:
         mfspr   r4,SPRN_ESR;            /* Grab the ESR and save it */        \
         stw     r4,_ESR(r11);                                                 \
         addi    r3,r1,STACK_FRAME_OVERHEAD;                                   \
-        EXC_XFER_STD(0x0700, ProgramCheckException)
+        EXC_XFER_STD(0x0700, program_check_exception)
 
 #define DECREMENTER_EXCEPTION                                                 \
         START_EXCEPTION(Decrementer)                                          \
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index 8e52e8408316..5063c603fad4 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -426,14 +426,14 @@ skpinv:	addi	r6,r6,1				/* Increment */
 
 interrupt_base:
         /* Critical Input Interrupt */
-        CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException)
+        CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
 
         /* Machine Check Interrupt */
 #ifdef CONFIG_E200
         /* no RFMCI, MCSRRs on E200 */
-        CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #else
-        MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
+        MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
 #endif
 
         /* Data Storage Interrupt */
@@ -542,9 +542,9 @@ interrupt_base:
 #else
 #ifdef CONFIG_E200
         /* E200 treats 'normal' floating point instructions as FP Unavail exception */
-        EXCEPTION(0x0800, FloatingPointUnavailable, ProgramCheckException, EXC_XFER_EE)
+        EXCEPTION(0x0800, FloatingPointUnavailable, program_check_exception, EXC_XFER_EE)
 #else
-        EXCEPTION(0x0800, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x0800, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
 #endif
 #endif
 
@@ -554,20 +554,20 @@ interrupt_base:
         EXC_XFER_EE_LITE(0x0c00, DoSyscall)
 
         /* Auxillary Processor Unavailable Interrupt */
-        EXCEPTION(0x2900, AuxillaryProcessorUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2900, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
 
         /* Decrementer Interrupt */
         DECREMENTER_EXCEPTION
 
         /* Fixed Internal Timer Interrupt */
         /* TODO: Add FIT support */
-        EXCEPTION(0x3100, FixedIntervalTimer, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x3100, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
 
         /* Watchdog Timer Interrupt */
 #ifdef CONFIG_BOOKE_WDT
         CRITICAL_EXCEPTION(0x3200, WatchdogTimer, WatchdogException)
 #else
-        CRITICAL_EXCEPTION(0x3200, WatchdogTimer, UnknownException)
+        CRITICAL_EXCEPTION(0x3200, WatchdogTimer, unknown_exception)
 #endif
 
         /* Data TLB Error Interrupt */
@@ -696,21 +696,21 @@ interrupt_base:
         addi    r3,r1,STACK_FRAME_OVERHEAD
         EXC_XFER_EE_LITE(0x2010, KernelSPE)
 #else
-        EXCEPTION(0x2020, SPEUnavailable, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2020, SPEUnavailable, unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_SPE */
 
         /* SPE Floating Point Data */
 #ifdef CONFIG_SPE
         EXCEPTION(0x2030, SPEFloatingPointData, SPEFloatingPointException, EXC_XFER_EE);
 #else
-        EXCEPTION(0x2040, SPEFloatingPointData, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2040, SPEFloatingPointData, unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_SPE */
 
         /* SPE Floating Point Round */
-        EXCEPTION(0x2050, SPEFloatingPointRound, UnknownException, EXC_XFER_EE)
+        EXCEPTION(0x2050, SPEFloatingPointRound, unknown_exception, EXC_XFER_EE)
 
         /* Performance Monitor */
-        EXCEPTION(0x2060, PerformanceMonitor, PerformanceMonitorException, EXC_XFER_STD)
+        EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD)
 
 
         /* Debug Interrupt */
@@ -853,7 +853,7 @@ load_up_spe:
         cmpi    0,r4,0
         beq     1f
         addi    r4,r4,THREAD    /* want THREAD of last_task_used_spe */
-        SAVE_32EVR(0,r10,r4)
+        SAVE_32EVRS(0,r10,r4)
         evxor   evr10, evr10, evr10     /* clear out evr10 */
         evmwumiaa evr10, evr10, evr10   /* evr10 <- ACC = 0 * 0 + ACC */
         li      r5,THREAD_ACC
@@ -873,7 +873,7 @@ load_up_spe:
         stw     r4,THREAD_USED_SPE(r5)
         evlddx  evr4,r10,r5
         evmra   evr4,evr4
-        REST_32EVR(0,r10,r5)
+        REST_32EVRS(0,r10,r5)
 #ifndef CONFIG_SMP
         subi    r4,r5,THREAD
         stw     r4,last_task_used_spe@l(r3)
@@ -963,7 +963,7 @@ _GLOBAL(giveup_spe)
         addi    r3,r3,THREAD            /* want THREAD of task */
         lwz     r5,PT_REGS(r3)
         cmpi    0,r5,0
-        SAVE_32EVR(0, r4, r3)
+        SAVE_32EVRS(0, r4, r3)
         evxor   evr6, evr6, evr6        /* clear out evr6 */
         evmwumiaa evr6, evr6, evr6      /* evr6 <- ACC = 0 * 0 + ACC */
         li      r4,THREAD_ACC
@@ -1028,10 +1028,14 @@ _GLOBAL(set_context)
  * goes at the beginning of the data segment, which is page-aligned.
  */
         .data
-_GLOBAL(sdata)
-_GLOBAL(empty_zero_page)
+        .align  12
+        .globl  sdata
+sdata:
+        .globl  empty_zero_page
+empty_zero_page:
         .space  4096
-_GLOBAL(swapper_pg_dir)
+        .globl  swapper_pg_dir
+swapper_pg_dir:
         .space  4096
 
 /* Reserved 4k for the critical exception stack & 4k for the machine
@@ -1040,13 +1044,15 @@ _GLOBAL(swapper_pg_dir)
         .align 12
 exception_stack_bottom:
         .space  BOOKE_EXCEPTION_STACK_SIZE * NR_CPUS
-_GLOBAL(exception_stack_top)
+        .globl  exception_stack_top
+exception_stack_top:
 
 /*
  * This space gets a copy of optional info passed to us by the bootstrap
  * which is used to pass parameters into the kernel like root=/dev/sda1, etc.
  */
-_GLOBAL(cmd_line)
+        .globl  cmd_line
+cmd_line:
         .space  512
 
 /*
@@ -1055,4 +1061,3 @@ _GLOBAL(cmd_line)
  */
 abatron_pteptrs:
         .space  8
-
diff --git a/arch/ppc/kernel/idle.c b/arch/ppc/kernel/idle.c
index fba29c876b62..11e5b44713f7 100644
--- a/arch/ppc/kernel/idle.c
+++ b/arch/ppc/kernel/idle.c
@@ -32,6 +32,7 @@
 #include <asm/cache.h>
 #include <asm/cputable.h>
 #include <asm/machdep.h>
+#include <asm/smp.h>
 
 void default_idle(void)
 {
@@ -74,7 +75,7 @@ void cpu_idle(void)
 /*
  * Register the sysctl to set/clear powersave_nap.
  */
-extern unsigned long powersave_nap;
+extern int powersave_nap;
 
 static ctl_table powersave_nap_ctl_table[]={
         {
diff --git a/arch/ppc/kernel/irq.c b/arch/ppc/kernel/irq.c
index 8843f3af230f..772e428aaa59 100644
--- a/arch/ppc/kernel/irq.c
+++ b/arch/ppc/kernel/irq.c
@@ -57,6 +57,7 @@
 #include <asm/cache.h>
 #include <asm/prom.h>
 #include <asm/ptrace.h>
+#include <asm/machdep.h>
 
 #define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
 
diff --git a/arch/ppc/kernel/l2cr.S b/arch/ppc/kernel/l2cr.S
index 861115249b35..d7f4e982b539 100644
--- a/arch/ppc/kernel/l2cr.S
+++ b/arch/ppc/kernel/l2cr.S
@@ -203,7 +203,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_SPEC7450)
          * L1 icache
          */
         b       20f
-        .balign L1_CACHE_LINE_SIZE
+        .balign L1_CACHE_BYTES
 22:
         sync
         mtspr   SPRN_L2CR,r3
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 90d917d2e856..3056ede2424d 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -125,9 +125,8 @@ _GLOBAL(identify_cpu)
 1:
         addis   r6,r3,cur_cpu_spec@ha
         addi    r6,r6,cur_cpu_spec@l
-        slwi    r4,r4,2
         sub     r8,r8,r3
-        stwx    r8,r4,r6
+        stw     r8,0(r6)
         blr
 
 /*
@@ -186,19 +185,18 @@ _GLOBAL(do_cpu_ftr_fixups)
  *
  * Setup function is called with:
  *   r3 = data offset
- *   r4 = CPU number
- *   r5 = ptr to CPU spec (relocated)
+ *   r4 = ptr to CPU spec (relocated)
  */
 _GLOBAL(call_setup_cpu)
-        addis   r5,r3,cur_cpu_spec@ha
-        addi    r5,r5,cur_cpu_spec@l
-        slwi    r4,r24,2
-        lwzx    r5,r4,r5
+        addis   r4,r3,cur_cpu_spec@ha
+        addi    r4,r4,cur_cpu_spec@l
+        lwz     r4,0(r4)
+        add     r4,r4,r3
+        lwz     r5,CPU_SPEC_SETUP(r4)
+        cmpi    0,r5,0
         add     r5,r5,r3
-        lwz     r6,CPU_SPEC_SETUP(r5)
-        add     r6,r6,r3
-        mtctr   r6
-        mr      r4,r24
+        beqlr
+        mtctr   r5
         bctr
 
 #if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_6xx)
@@ -273,134 +271,6 @@ _GLOBAL(low_choose_7447a_dfs)
 
 #endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_6xx */
 
-/* void local_save_flags_ptr(unsigned long *flags) */
-_GLOBAL(local_save_flags_ptr)
-        mfmsr   r4
-        stw     r4,0(r3)
-        blr
-        /*
-         * Need these nops here for taking over save/restore to
-         * handle lost intrs
-         * -- Cort
-         */
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-_GLOBAL(local_save_flags_ptr_end)
-
-/* void local_irq_restore(unsigned long flags) */
-_GLOBAL(local_irq_restore)
-/*
- * Just set/clear the MSR_EE bit through restore/flags but do not
- * change anything else.  This is needed by the RT system and makes
- * sense anyway.
- *    -- Cort
- */
-        mfmsr   r4
-        /* Copy all except the MSR_EE bit from r4 (current MSR value)
-           to r3.  This is the sort of thing the rlwimi instruction is
-           designed for.  -- paulus. */
-        rlwimi  r3,r4,0,17,15
-         /* Check if things are setup the way we want _already_. */
-        cmpw    0,r3,r4
-        beqlr
-1:      SYNC
-        mtmsr   r3
-        SYNC
-        blr
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-_GLOBAL(local_irq_restore_end)
-
-_GLOBAL(local_irq_disable)
-        mfmsr   r0              /* Get current interrupt state */
-        rlwinm  r3,r0,16+1,32-1,31      /* Extract old value of 'EE' */
-        rlwinm  r0,r0,0,17,15   /* clear MSR_EE in r0 */
-        SYNC                    /* Some chip revs have problems here... */
-        mtmsr   r0              /* Update machine state */
-        blr                     /* Done */
-        /*
-         * Need these nops here for taking over save/restore to
-         * handle lost intrs
-         * -- Cort
-         */
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-_GLOBAL(local_irq_disable_end)
-
-_GLOBAL(local_irq_enable)
-        mfmsr   r3              /* Get current state */
-        ori     r3,r3,MSR_EE    /* Turn on 'EE' bit */
-        SYNC                    /* Some chip revs have problems here... */
-        mtmsr   r3              /* Update machine state */
-        blr
-        /*
-         * Need these nops here for taking over save/restore to
-         * handle lost intrs
-         * -- Cort
-         */
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-        nop
-_GLOBAL(local_irq_enable_end)
-
 /*
  * complement mask on the msr then "or" some values on.
  *     _nmask_and_or_msr(nmask, value_to_or)
@@ -628,21 +498,21 @@ _GLOBAL(flush_icache_range)
 BEGIN_FTR_SECTION
         blr                             /* for 601, do nothing */
 END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
-        li      r5,L1_CACHE_LINE_SIZE-1
+        li      r5,L1_CACHE_BYTES-1
         andc    r3,r3,r5
         subf    r4,r3,r4
         add     r4,r4,r5
-        srwi.   r4,r4,LG_L1_CACHE_LINE_SIZE
+        srwi.   r4,r4,L1_CACHE_SHIFT
         beqlr
         mtctr   r4
         mr      r6,r3
 1:      dcbst   0,r3
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    1b
         sync                            /* wait for dcbst's to get to ram */
         mtctr   r4
 2:      icbi    0,r6
-        addi    r6,r6,L1_CACHE_LINE_SIZE
+        addi    r6,r6,L1_CACHE_BYTES
         bdnz    2b
         sync                            /* additional sync needed on g4 */
         isync
@@ -655,16 +525,16 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
  * clean_dcache_range(unsigned long start, unsigned long stop)
  */
 _GLOBAL(clean_dcache_range)
-        li      r5,L1_CACHE_LINE_SIZE-1
+        li      r5,L1_CACHE_BYTES-1
         andc    r3,r3,r5
         subf    r4,r3,r4
         add     r4,r4,r5
-        srwi.   r4,r4,LG_L1_CACHE_LINE_SIZE
+        srwi.   r4,r4,L1_CACHE_SHIFT
         beqlr
         mtctr   r4
 
 1:      dcbst   0,r3
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    1b
         sync                            /* wait for dcbst's to get to ram */
         blr
@@ -676,16 +546,16 @@ _GLOBAL(clean_dcache_range)
  * flush_dcache_range(unsigned long start, unsigned long stop)
  */
 _GLOBAL(flush_dcache_range)
-        li      r5,L1_CACHE_LINE_SIZE-1
+        li      r5,L1_CACHE_BYTES-1
         andc    r3,r3,r5
         subf    r4,r3,r4
         add     r4,r4,r5
-        srwi.   r4,r4,LG_L1_CACHE_LINE_SIZE
+        srwi.   r4,r4,L1_CACHE_SHIFT
         beqlr
         mtctr   r4
 
 1:      dcbf    0,r3
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    1b
         sync                            /* wait for dcbst's to get to ram */
         blr
@@ -698,16 +568,16 @@ _GLOBAL(flush_dcache_range)
  * invalidate_dcache_range(unsigned long start, unsigned long stop)
  */
 _GLOBAL(invalidate_dcache_range)
-        li      r5,L1_CACHE_LINE_SIZE-1
+        li      r5,L1_CACHE_BYTES-1
         andc    r3,r3,r5
         subf    r4,r3,r4
         add     r4,r4,r5
-        srwi.   r4,r4,LG_L1_CACHE_LINE_SIZE
+        srwi.   r4,r4,L1_CACHE_SHIFT
         beqlr
         mtctr   r4
 
 1:      dcbi    0,r3
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    1b
         sync                            /* wait for dcbi's to get to ram */
         blr
@@ -728,7 +598,7 @@ _GLOBAL(flush_dcache_all)
         mtctr   r4
         lis     r5, KERNELBASE@h
 1:      lwz     r3, 0(r5)               /* Load one word from every line */
-        addi    r5, r5, L1_CACHE_LINE_SIZE
+        addi    r5, r5, L1_CACHE_BYTES
         bdnz    1b
         blr
 #endif /* CONFIG_NOT_COHERENT_CACHE */
@@ -746,16 +616,16 @@ BEGIN_FTR_SECTION
         blr                                     /* for 601, do nothing */
 END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
         rlwinm  r3,r3,0,0,19                    /* Get page base address */
-        li      r4,4096/L1_CACHE_LINE_SIZE      /* Number of lines in a page */
+        li      r4,4096/L1_CACHE_BYTES  /* Number of lines in a page */
         mtctr   r4
         mr      r6,r3
 0:      dcbst   0,r3                            /* Write line to ram */
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    0b
         sync
         mtctr   r4
 1:      icbi    0,r6
-        addi    r6,r6,L1_CACHE_LINE_SIZE
+        addi    r6,r6,L1_CACHE_BYTES
         bdnz    1b
         sync
         isync
@@ -778,16 +648,16 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
         mtmsr   r0
         isync
         rlwinm  r3,r3,0,0,19                    /* Get page base address */
-        li      r4,4096/L1_CACHE_LINE_SIZE      /* Number of lines in a page */
+        li      r4,4096/L1_CACHE_BYTES  /* Number of lines in a page */
         mtctr   r4
         mr      r6,r3
 0:      dcbst   0,r3                            /* Write line to ram */
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    0b
         sync
         mtctr   r4
 1:      icbi    0,r6
-        addi    r6,r6,L1_CACHE_LINE_SIZE
+        addi    r6,r6,L1_CACHE_BYTES
         bdnz    1b
         sync
         mtmsr   r10                             /* restore DR */
@@ -802,7 +672,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
  * void clear_pages(void *page, int order) ;
  */
 _GLOBAL(clear_pages)
-        li      r0,4096/L1_CACHE_LINE_SIZE
+        li      r0,4096/L1_CACHE_BYTES
         slw     r0,r0,r4
         mtctr   r0
 #ifdef CONFIG_8xx
@@ -814,7 +684,7 @@ _GLOBAL(clear_pages)
 #else
 1:      dcbz    0,r3
 #endif
-        addi    r3,r3,L1_CACHE_LINE_SIZE
+        addi    r3,r3,L1_CACHE_BYTES
         bdnz    1b
         blr
 
@@ -840,7 +710,7 @@ _GLOBAL(copy_page)
 
 #ifdef CONFIG_8xx
         /* don't use prefetch on 8xx */
-        li      r0,4096/L1_CACHE_LINE_SIZE
+        li      r0,4096/L1_CACHE_BYTES
         mtctr   r0
 1:      COPY_16_BYTES
         bdnz    1b
@@ -854,13 +724,13 @@ _GLOBAL(copy_page)
         li      r11,4
         mtctr   r0
 11:     dcbt    r11,r4
-        addi    r11,r11,L1_CACHE_LINE_SIZE
+        addi    r11,r11,L1_CACHE_BYTES
         bdnz    11b
 #else /* MAX_COPY_PREFETCH == 1 */
         dcbt    r5,r4
-        li      r11,L1_CACHE_LINE_SIZE+4
+        li      r11,L1_CACHE_BYTES+4
 #endif /* MAX_COPY_PREFETCH */
-        li      r0,4096/L1_CACHE_LINE_SIZE - MAX_COPY_PREFETCH
+        li      r0,4096/L1_CACHE_BYTES - MAX_COPY_PREFETCH
         crclr   4*cr0+eq
 2:
         mtctr   r0
@@ -868,12 +738,12 @@ _GLOBAL(copy_page)
         dcbt    r11,r4
         dcbz    r5,r3
         COPY_16_BYTES
-#if L1_CACHE_LINE_SIZE >= 32
+#if L1_CACHE_BYTES >= 32
         COPY_16_BYTES
-#if L1_CACHE_LINE_SIZE >= 64
+#if L1_CACHE_BYTES >= 64
         COPY_16_BYTES
         COPY_16_BYTES
-#if L1_CACHE_LINE_SIZE >= 128
+#if L1_CACHE_BYTES >= 128
         COPY_16_BYTES
         COPY_16_BYTES
         COPY_16_BYTES
@@ -1098,33 +968,6 @@ _GLOBAL(_get_SP)
         blr
 
 /*
- * These are used in the alignment trap handler when emulating
- * single-precision loads and stores.
- * We restore and save the fpscr so the task gets the same result
- * and exceptions as if the cpu had performed the load or store.
- */
-
-#ifdef CONFIG_PPC_FPU
-_GLOBAL(cvt_fd)
-        lfd     0,-4(r5)        /* load up fpscr value */
-        mtfsf   0xff,0
-        lfs     0,0(r3)
-        stfd    0,0(r4)
-        mffs    0               /* save new fpscr value */
-        stfd    0,-4(r5)
-        blr
-
-_GLOBAL(cvt_df)
-        lfd     0,-4(r5)        /* load up fpscr value */
-        mtfsf   0xff,0
-        lfd     0,0(r3)
-        stfs    0,0(r4)
-        mffs    0               /* save new fpscr value */
-        stfd    0,-4(r5)
-        blr
-#endif
-
-/*
  * Create a kernel thread
  *   kernel_thread(fn, arg, flags)
  */
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 854e45beb387..e8f4e576750a 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -21,6 +21,7 @@
 #include <asm/byteorder.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
+#include <asm/machdep.h>
 
 #undef DEBUG
 
@@ -53,7 +54,7 @@ static u8* pci_to_OF_bus_map;
 /* By default, we don't re-assign bus numbers. We do this only on
  * some pmacs
  */
-int pci_assign_all_busses;
+int pci_assign_all_buses;
 
 struct pci_controller* hose_head;
 struct pci_controller** hose_tail = &hose_head;
@@ -644,7 +645,7 @@ pcibios_alloc_controller(void)
 /*
  * Functions below are used on OpenFirmware machines.
  */
-static void __openfirmware
+static void
 make_one_node_map(struct device_node* node, u8 pci_bus)
 {
         int *bus_range;
@@ -678,7 +679,7 @@ make_one_node_map(struct device_node* node, u8 pci_bus)
         }
 }
         
-void __openfirmware
+void
 pcibios_make_OF_bus_map(void)
 {
         int i;
@@ -720,7 +721,7 @@ pcibios_make_OF_bus_map(void)
 
 typedef int (*pci_OF_scan_iterator)(struct device_node* node, void* data);
 
-static struct device_node* __openfirmware
+static struct device_node*
 scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void* data)
 {
         struct device_node* sub_node;
@@ -761,7 +762,7 @@ scan_OF_pci_childs_iterator(struct device_node* node, void* data)
         return 0;
 }
 
-static struct device_node* __openfirmware
+static struct device_node*
 scan_OF_childs_for_device(struct device_node* node, u8 bus, u8 dev_fn)
 {
         u8 filter_data[2] = {bus, dev_fn};
@@ -813,18 +814,20 @@ pci_busdev_to_OF_node(struct pci_bus *bus, int devfn)
         /* Now, lookup childs of the hose */
         return scan_OF_childs_for_device(node->child, busnr, devfn);
 }
+EXPORT_SYMBOL(pci_busdev_to_OF_node);
 
 struct device_node*
 pci_device_to_OF_node(struct pci_dev *dev)
 {
         return pci_busdev_to_OF_node(dev->bus, dev->devfn);
 }
+EXPORT_SYMBOL(pci_device_to_OF_node);
 
 /* This routine is meant to be used early during boot, when the
  * PCI bus numbers have not yet been assigned, and you need to
  * issue PCI config cycles to an OF device.
  * It could also be used to "fix" RTAS config cycles if you want
- * to set pci_assign_all_busses to 1 and still use RTAS for PCI
+ * to set pci_assign_all_buses to 1 and still use RTAS for PCI
  * config cycles.
  */
 struct pci_controller*
@@ -842,7 +845,7 @@ pci_find_hose_for_OF_device(struct device_node* node)
         return NULL;
 }
 
-static int __openfirmware
+static int
 find_OF_pci_device_filter(struct device_node* node, void* data)
 {
         return ((void *)node == data);
@@ -890,6 +893,7 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
         }
         return -ENODEV;
 }
+EXPORT_SYMBOL(pci_device_from_OF_node);
 
 void __init
 pci_process_bridge_OF_ranges(struct pci_controller *hose,
@@ -1030,6 +1034,10 @@ static ssize_t pci_show_devspec(struct device *dev, struct device_attribute *att
 }
 static DEVICE_ATTR(devspec, S_IRUGO, pci_show_devspec, NULL);
 
+#else /* CONFIG_PPC_OF */
+void pcibios_make_OF_bus_map(void)
+{
+}
 #endif /* CONFIG_PPC_OF */
 
 /* Add sysfs properties */
@@ -1262,12 +1270,12 @@ pcibios_init(void)
 
         /* Scan all of the recorded PCI controllers.  */
         for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
-                if (pci_assign_all_busses)
+                if (pci_assign_all_buses)
                         hose->first_busno = next_busno;
                 hose->last_busno = 0xff;
                 bus = pci_scan_bus(hose->first_busno, hose->ops, hose);
                 hose->last_busno = bus->subordinate;
-                if (pci_assign_all_busses || next_busno <= hose->last_busno)
+                if (pci_assign_all_buses || next_busno <= hose->last_busno)
                         next_busno = hose->last_busno + pcibios_assign_bus_offset;
         }
         pci_bus_count = next_busno;
@@ -1276,7 +1284,7 @@ pcibios_init(void)
          * numbers vs. kernel bus numbers since we may have to
          * remap them.
          */
-        if (pci_assign_all_busses && have_of)
+        if (pci_assign_all_buses && have_of)
                 pcibios_make_OF_bus_map();
 
         /* Do machine dependent PCI interrupt routing */
@@ -1586,16 +1594,17 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
  * above routine
  */
 pgprot_t pci_phys_mem_access_prot(struct file *file,
-                                  unsigned long offset,
+                                  unsigned long pfn,
                                   unsigned long size,
                                   pgprot_t protection)
 {
         struct pci_dev *pdev = NULL;
         struct resource *found = NULL;
         unsigned long prot = pgprot_val(protection);
+        unsigned long offset = pfn << PAGE_SHIFT;
         int i;
 
-        if (page_is_ram(offset >> PAGE_SHIFT))
+        if (page_is_ram(pfn))
                 return prot;
 
         prot |= _PAGE_NO_CACHE | _PAGE_GUARDED;
diff --git a/arch/ppc/kernel/perfmon.c b/arch/ppc/kernel/perfmon.c
deleted file mode 100644
index 22df9a596a0f..000000000000
--- a/arch/ppc/kernel/perfmon.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* kernel/perfmon.c
- * PPC 32 Performance Monitor Infrastructure
- *
- * Author: Andy Fleming
- * Copyright (c) 2004 Freescale Semiconductor, Inc
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/interrupt.h>
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/prctl.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/reg.h>
-#include <asm/xmon.h>
-
-/* A lock to regulate grabbing the interrupt */
-DEFINE_SPINLOCK(perfmon_lock);
-
-#if defined (CONFIG_FSL_BOOKE) && !defined (CONFIG_E200)
-static void dummy_perf(struct pt_regs *regs)
-{
-        unsigned int pmgc0 = mfpmr(PMRN_PMGC0);
-
-        pmgc0 &= ~PMGC0_PMIE;
-        mtpmr(PMRN_PMGC0, pmgc0);
-}
-
-#elif defined(CONFIG_6xx)
-/* Ensure exceptions are disabled */
-static void dummy_perf(struct pt_regs *regs)
-{
-        unsigned int mmcr0 = mfspr(SPRN_MMCR0);
-
-        mmcr0 &= ~MMCR0_PMXE;
-        mtspr(SPRN_MMCR0, mmcr0);
-}
-#else
-static void dummy_perf(struct pt_regs *regs)
-{
-}
-#endif
-
-void (*perf_irq)(struct pt_regs *) = dummy_perf;
-
-/* Grab the interrupt, if it's free.
- * Returns 0 on success, -1 if the interrupt is taken already */
-int request_perfmon_irq(void (*handler)(struct pt_regs *))
-{
-        int err = 0;
-
-        spin_lock(&perfmon_lock);
-
-        if (perf_irq == dummy_perf)
-                perf_irq = handler;
-        else {
-                pr_info("perfmon irq already handled by %p\n", perf_irq);
-                err = -1;
-        }
-
-        spin_unlock(&perfmon_lock);
-
-        return err;
-}
-
-void free_perfmon_irq(void)
-{
-        spin_lock(&perfmon_lock);
-
-        perf_irq = dummy_perf;
-
-        spin_unlock(&perfmon_lock);
-}
-
-EXPORT_SYMBOL(perf_irq);
-EXPORT_SYMBOL(request_perfmon_irq);
-EXPORT_SYMBOL(free_perfmon_irq);
diff --git a/arch/ppc/kernel/perfmon_fsl_booke.c b/arch/ppc/kernel/perfmon_fsl_booke.c
index 03526bfb0840..32455dfcc36b 100644
--- a/arch/ppc/kernel/perfmon_fsl_booke.c
+++ b/arch/ppc/kernel/perfmon_fsl_booke.c
@@ -32,7 +32,7 @@
 #include <asm/io.h>
 #include <asm/reg.h>
 #include <asm/xmon.h>
-#include <asm/perfmon.h>
+#include <asm/pmc.h>
 
 static inline u32 get_pmlca(int ctr);
 static inline void set_pmlca(int ctr, u32 pmlca);
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 88f6bb7b6964..ae24196d78f6 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -53,10 +53,10 @@
 
 extern void transfer_to_handler(void);
 extern void do_IRQ(struct pt_regs *regs);
-extern void MachineCheckException(struct pt_regs *regs);
-extern void AlignmentException(struct pt_regs *regs);
-extern void ProgramCheckException(struct pt_regs *regs);
-extern void SingleStepException(struct pt_regs *regs);
+extern void machine_check_exception(struct pt_regs *regs);
+extern void alignment_exception(struct pt_regs *regs);
+extern void program_check_exception(struct pt_regs *regs);
+extern void single_step_exception(struct pt_regs *regs);
 extern int do_signal(sigset_t *, struct pt_regs *);
 extern int pmac_newworld;
 extern int sys_sigreturn(struct pt_regs *regs);
@@ -72,10 +72,10 @@ EXPORT_SYMBOL(clear_user_page);
 EXPORT_SYMBOL(do_signal);
 EXPORT_SYMBOL(transfer_to_handler);
 EXPORT_SYMBOL(do_IRQ);
-EXPORT_SYMBOL(MachineCheckException);
-EXPORT_SYMBOL(AlignmentException);
-EXPORT_SYMBOL(ProgramCheckException);
-EXPORT_SYMBOL(SingleStepException);
+EXPORT_SYMBOL(machine_check_exception);
+EXPORT_SYMBOL(alignment_exception);
+EXPORT_SYMBOL(program_check_exception);
+EXPORT_SYMBOL(single_step_exception);
 EXPORT_SYMBOL(sys_sigreturn);
 EXPORT_SYMBOL(ppc_n_lost_interrupts);
 EXPORT_SYMBOL(ppc_lost_interrupts);
@@ -230,9 +230,6 @@ EXPORT_SYMBOL(find_all_nodes);
 EXPORT_SYMBOL(get_property);
 EXPORT_SYMBOL(request_OF_resource);
 EXPORT_SYMBOL(release_OF_resource);
-EXPORT_SYMBOL(pci_busdev_to_OF_node);
-EXPORT_SYMBOL(pci_device_to_OF_node);
-EXPORT_SYMBOL(pci_device_from_OF_node);
 EXPORT_SYMBOL(of_find_node_by_name);
 EXPORT_SYMBOL(of_find_node_by_type);
 EXPORT_SYMBOL(of_find_compatible_node);
@@ -272,16 +269,6 @@ EXPORT_SYMBOL(screen_info);
 #endif
 
 EXPORT_SYMBOL(__delay);
-#ifndef INLINE_IRQS
-EXPORT_SYMBOL(local_irq_enable);
-EXPORT_SYMBOL(local_irq_enable_end);
-EXPORT_SYMBOL(local_irq_disable);
-EXPORT_SYMBOL(local_irq_disable_end);
-EXPORT_SYMBOL(local_save_flags_ptr);
-EXPORT_SYMBOL(local_save_flags_ptr_end);
-EXPORT_SYMBOL(local_irq_restore);
-EXPORT_SYMBOL(local_irq_restore_end);
-#endif
 EXPORT_SYMBOL(timer_interrupt);
 EXPORT_SYMBOL(irq_desc);
 EXPORT_SYMBOL(tb_ticks_per_jiffy);
@@ -335,11 +322,6 @@ EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */
 extern long *intercept_table;
 EXPORT_SYMBOL(intercept_table);
 #endif /* CONFIG_PPC_STD_MMU */
-EXPORT_SYMBOL(cur_cpu_spec);
-#ifdef CONFIG_PPC_PMAC
-extern unsigned long agp_special_page;
-EXPORT_SYMBOL(agp_special_page);
-#endif
 #if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
 EXPORT_SYMBOL(__mtdcr);
 EXPORT_SYMBOL(__mfdcr);
diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
index 82de66e4db6d..cb1c7b92f8c6 100644
--- a/arch/ppc/kernel/process.c
+++ b/arch/ppc/kernel/process.c
@@ -152,18 +152,66 @@ int check_stack(struct task_struct *tsk)
 }
 #endif /* defined(CHECK_STACK) */
 
-#ifdef CONFIG_ALTIVEC
-int
-dump_altivec(struct pt_regs *regs, elf_vrregset_t *vrregs)
+/*
+ * Make sure the floating-point register state in the
+ * the thread_struct is up to date for task tsk.
+ */
+void flush_fp_to_thread(struct task_struct *tsk)
 {
-        if (regs->msr & MSR_VEC)
-                giveup_altivec(current);
-        memcpy(vrregs, &current->thread.vr[0], sizeof(*vrregs));
+        if (tsk->thread.regs) {
+                /*
+                 * We need to disable preemption here because if we didn't,
+                 * another process could get scheduled after the regs->msr
+                 * test but before we have finished saving the FP registers
+                 * to the thread_struct.  That process could take over the
+                 * FPU, and then when we get scheduled again we would store
+                 * bogus values for the remaining FP registers.
+                 */
+                preempt_disable();
+                if (tsk->thread.regs->msr & MSR_FP) {
+#ifdef CONFIG_SMP
+                        /*
+                         * This should only ever be called for current or
+                         * for a stopped child process.  Since we save away
+                         * the FP register state on context switch on SMP,
+                         * there is something wrong if a stopped child appears
+                         * to still have its FP state in the CPU registers.
+                         */
+                        BUG_ON(tsk != current);
+#endif
+                        giveup_fpu(current);
+                }
+                preempt_enable();
+        }
+}
+
+void enable_kernel_fp(void)
+{
+        WARN_ON(preemptible());
+
+#ifdef CONFIG_SMP
+        if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
+                giveup_fpu(current);
+        else
+                giveup_fpu(NULL);       /* just enables FP for kernel */
+#else
+        giveup_fpu(last_task_used_math);
+#endif /* CONFIG_SMP */
+}
+EXPORT_SYMBOL(enable_kernel_fp);
+
+int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
+{
+        preempt_disable();
+        if (tsk->thread.regs && (tsk->thread.regs->msr & MSR_FP))
+                giveup_fpu(tsk);
+        preempt_enable();
+        memcpy(fpregs, &tsk->thread.fpr[0], sizeof(*fpregs));
         return 1;
 }
 
-void
-enable_kernel_altivec(void)
+#ifdef CONFIG_ALTIVEC
+void enable_kernel_altivec(void)
 {
         WARN_ON(preemptible());
 
@@ -177,19 +225,35 @@ enable_kernel_altivec(void)
 #endif /* __SMP __ */
 }
 EXPORT_SYMBOL(enable_kernel_altivec);
-#endif /* CONFIG_ALTIVEC */
 
-#ifdef CONFIG_SPE
-int
-dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
+/*
+ * Make sure the VMX/Altivec register state in the
+ * the thread_struct is up to date for task tsk.
+ */
+void flush_altivec_to_thread(struct task_struct *tsk)
 {
-        if (regs->msr & MSR_SPE)
-                giveup_spe(current);
-        /* We copy u32 evr[32] + u64 acc + u32 spefscr -> 35 */
-        memcpy(evrregs, &current->thread.evr[0], sizeof(u32) * 35);
+        if (tsk->thread.regs) {
+                preempt_disable();
+                if (tsk->thread.regs->msr & MSR_VEC) {
+#ifdef CONFIG_SMP
+                        BUG_ON(tsk != current);
+#endif
+                        giveup_altivec(current);
+                }
+                preempt_enable();
+        }
+}
+
+int dump_altivec(struct pt_regs *regs, elf_vrregset_t *vrregs)
+{
+        if (regs->msr & MSR_VEC)
+                giveup_altivec(current);
+        memcpy(vrregs, &current->thread.vr[0], sizeof(*vrregs));
         return 1;
 }
+#endif /* CONFIG_ALTIVEC */
 
+#ifdef CONFIG_SPE
 void
 enable_kernel_spe(void)
 {
@@ -205,34 +269,30 @@ enable_kernel_spe(void)
 #endif /* __SMP __ */
 }
 EXPORT_SYMBOL(enable_kernel_spe);
-#endif /* CONFIG_SPE */
 
-void
-enable_kernel_fp(void)
+void flush_spe_to_thread(struct task_struct *tsk)
 {
-        WARN_ON(preemptible());
-
+        if (tsk->thread.regs) {
+                preempt_disable();
+                if (tsk->thread.regs->msr & MSR_SPE) {
 #ifdef CONFIG_SMP
-        if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
-                giveup_fpu(current);
-        else
-                giveup_fpu(NULL);       /* just enables FP for kernel */
-#else
-        giveup_fpu(last_task_used_math);
-#endif /* CONFIG_SMP */
+                        BUG_ON(tsk != current);
+#endif
+                        giveup_spe(current);
+                }
+                preempt_enable();
+        }
 }
-EXPORT_SYMBOL(enable_kernel_fp);
 
-int
-dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
+int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
 {
-        preempt_disable();
-        if (tsk->thread.regs && (tsk->thread.regs->msr & MSR_FP))
-                giveup_fpu(tsk);
-        preempt_enable();
-        memcpy(fpregs, &tsk->thread.fpr[0], sizeof(*fpregs));
+        if (regs->msr & MSR_SPE)
+                giveup_spe(current);
+        /* We copy u32 evr[32] + u64 acc + u32 spefscr -> 35 */
+        memcpy(evrregs, &current->thread.evr[0], sizeof(u32) * 35);
         return 1;
 }
+#endif /* CONFIG_SPE */
 
 struct task_struct *__switch_to(struct task_struct *prev,
         struct task_struct *new)
@@ -287,11 +347,13 @@ struct task_struct *__switch_to(struct task_struct *prev,
 #endif /* CONFIG_SPE */
 #endif /* CONFIG_SMP */
 
+#ifdef CONFIG_ALTIVEC
         /* Avoid the trap.  On smp this this never happens since
          * we don't set last_task_used_altivec -- Cort
          */
         if (new->thread.regs && last_task_used_altivec == new)
                 new->thread.regs->msr |= MSR_VEC;
+#endif
 #ifdef CONFIG_SPE
         /* Avoid the trap.  On smp this this never happens since
          * we don't set last_task_used_spe
@@ -482,7 +544,7 @@ void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp)
                 last_task_used_spe = NULL;
 #endif
         memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
-        current->thread.fpscr = 0;
+        current->thread.fpscr.val = 0;
 #ifdef CONFIG_ALTIVEC
         memset(current->thread.vr, 0, sizeof(current->thread.vr));
         memset(&current->thread.vscr, 0, sizeof(current->thread.vscr));
@@ -557,14 +619,16 @@ int sys_clone(unsigned long clone_flags, unsigned long usp,
         return do_fork(clone_flags, usp, regs, 0, parent_tidp, child_tidp);
 }
 
-int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6,
+int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
+             unsigned long p4, unsigned long p5, unsigned long p6,
              struct pt_regs *regs)
 {
         CHECK_FULL_REGS(regs);
         return do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
 }
 
-int sys_vfork(int p1, int p2, int p3, int p4, int p5, int p6,
+int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
+              unsigned long p4, unsigned long p5, unsigned long p6,
               struct pt_regs *regs)
 {
         CHECK_FULL_REGS(regs);
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 545cfd0fab59..6bcb85d2b7fd 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -71,7 +71,8 @@ struct ide_machdep_calls ppc_ide_md;
 unsigned long boot_mem_size;
 
 unsigned long ISA_DMA_THRESHOLD;
-unsigned long DMA_MODE_READ, DMA_MODE_WRITE;
+unsigned int DMA_MODE_READ;
+unsigned int DMA_MODE_WRITE;
 
 #ifdef CONFIG_PPC_MULTIPLATFORM
 int _machine = 0;
@@ -82,8 +83,18 @@ extern void pmac_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7);
 extern void chrp_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7);
+
+dev_t boot_dev;
 #endif /* CONFIG_PPC_MULTIPLATFORM */
 
+int have_of;
+EXPORT_SYMBOL(have_of);
+
+#ifdef __DO_IRQ_CANON
+int ppc_do_canonicalize_irqs;
+EXPORT_SYMBOL(ppc_do_canonicalize_irqs);
+#endif
+
 #ifdef CONFIG_MAGIC_SYSRQ
 unsigned long SYSRQ_KEY = 0x54;
 #endif /* CONFIG_MAGIC_SYSRQ */
@@ -185,18 +196,18 @@ int show_cpuinfo(struct seq_file *m, void *v)
         seq_printf(m, "processor\t: %d\n", i);
         seq_printf(m, "cpu\t\t: ");
 
-        if (cur_cpu_spec[i]->pvr_mask)
-                seq_printf(m, "%s", cur_cpu_spec[i]->cpu_name);
+        if (cur_cpu_spec->pvr_mask)
+                seq_printf(m, "%s", cur_cpu_spec->cpu_name);
         else
                 seq_printf(m, "unknown (%08x)", pvr);
 #ifdef CONFIG_ALTIVEC
-        if (cur_cpu_spec[i]->cpu_features & CPU_FTR_ALTIVEC)
+        if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
                 seq_printf(m, ", altivec supported");
 #endif
         seq_printf(m, "\n");
 
 #ifdef CONFIG_TAU
-        if (cur_cpu_spec[i]->cpu_features & CPU_FTR_TAU) {
+        if (cur_cpu_spec->cpu_features & CPU_FTR_TAU) {
 #ifdef CONFIG_TAU_AVERAGE
                 /* more straightforward, but potentially misleading */
                 seq_printf(m,  "temperature \t: %u C (uncalibrated)\n",
@@ -339,7 +350,7 @@ early_init(int r3, int r4, int r5)
  * Assume here that all clock rates are the same in a
  * smp system.  -- Cort
  */
-int __openfirmware
+int
 of_show_percpuinfo(struct seq_file *m, int i)
 {
         struct device_node *cpu_node;
@@ -404,11 +415,15 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
                         _machine = _MACH_prep;
         }
 
+#ifdef CONFIG_PPC_PREP
         /* not much more to do here, if prep */
         if (_machine == _MACH_prep) {
                 prep_init(r3, r4, r5, r6, r7);
                 return;
         }
+#endif
+
+        have_of = 1;
 
         /* prom_init has already been called from __start */
         if (boot_infos)
@@ -479,12 +494,16 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif /* CONFIG_ADB */
 
         switch (_machine) {
+#ifdef CONFIG_PPC_PMAC
         case _MACH_Pmac:
                 pmac_init(r3, r4, r5, r6, r7);
                 break;
+#endif
+#ifdef CONFIG_PPC_CHRP
         case _MACH_chrp:
                 chrp_init(r3, r4, r5, r6, r7);
                 break;
+#endif
         }
 }
 
@@ -721,7 +740,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 #ifdef CONFIG_XMON
-        xmon_map_scc();
+        xmon_init(1);
         if (strstr(cmd_line, "xmon"))
                 xmon(NULL);
 #endif /* CONFIG_XMON */
@@ -745,12 +764,12 @@ void __init setup_arch(char **cmdline_p)
          * for a possibly more accurate value.
          */
         if (cpu_has_feature(CPU_FTR_SPLIT_ID_CACHE)) {
-                dcache_bsize = cur_cpu_spec[0]->dcache_bsize;
-                icache_bsize = cur_cpu_spec[0]->icache_bsize;
+                dcache_bsize = cur_cpu_spec->dcache_bsize;
+                icache_bsize = cur_cpu_spec->icache_bsize;
                 ucache_bsize = 0;
         } else
                 ucache_bsize = dcache_bsize = icache_bsize
-                        = cur_cpu_spec[0]->dcache_bsize;
+                        = cur_cpu_spec->dcache_bsize;
 
         /* reboot on panic */
         panic_timeout = 180;
diff --git a/arch/ppc/kernel/signal.c b/arch/ppc/kernel/signal.c
deleted file mode 100644
index 2244bf91e593..000000000000
--- a/arch/ppc/kernel/signal.c
+++ /dev/null
@@ -1,771 +0,0 @@
-/*
- *  arch/ppc/kernel/signal.c
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Derived from "arch/i386/kernel/signal.c"
- *    Copyright (C) 1991, 1992 Linus Torvalds
- *    1997-11-28  Modified for POSIX.1b signals by Richard Henderson
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/elf.h>
-#include <linux/tty.h>
-#include <linux/binfmts.h>
-#include <linux/suspend.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/cacheflush.h>
-
-#undef DEBUG_SIG
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-extern void sigreturn_exit(struct pt_regs *);
-
-#define GP_REGS_SIZE    min(sizeof(elf_gregset_t), sizeof(struct pt_regs))
-
-int do_signal(sigset_t *oldset, struct pt_regs *regs);
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-int
-sys_sigsuspend(old_sigset_t mask, int p2, int p3, int p4, int p6, int p7,
-               struct pt_regs *regs)
-{
-        sigset_t saveset;
-
-        mask &= _BLOCKABLE;
-        spin_lock_irq(&current->sighand->siglock);
-        saveset = current->blocked;
-        siginitset(&current->blocked, mask);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        regs->result = -EINTR;
-        regs->gpr[3] = EINTR;
-        regs->ccr |= 0x10000000;
-        while (1) {
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                if (do_signal(&saveset, regs))
-                        sigreturn_exit(regs);
-        }
-}
-
-int
-sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, int p3, int p4,
-                  int p6, int p7, struct pt_regs *regs)
-{
-        sigset_t saveset, newset;
-
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-
-        if (copy_from_user(&newset, unewset, sizeof(newset)))
-                return -EFAULT;
-        sigdelsetmask(&newset, ~_BLOCKABLE);
-
-        spin_lock_irq(&current->sighand->siglock);
-        saveset = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        regs->result = -EINTR;
-        regs->gpr[3] = EINTR;
-        regs->ccr |= 0x10000000;
-        while (1) {
-                current->state = TASK_INTERRUPTIBLE;
-                schedule();
-                if (do_signal(&saveset, regs))
-                        sigreturn_exit(regs);
-        }
-}
-
-
-int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, int r5,
-                int r6, int r7, int r8, struct pt_regs *regs)
-{
-        return do_sigaltstack(uss, uoss, regs->gpr[1]);
-}
-
-int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
-              struct old_sigaction __user *oact)
-{
-        struct k_sigaction new_ka, old_ka;
-        int ret;
-
-        if (act) {
-                old_sigset_t mask;
-                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-                    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
-                        return -EFAULT;
-                __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                __get_user(mask, &act->sa_mask);
-                siginitset(&new_ka.sa.sa_mask, mask);
-        }
-
-        ret = do_sigaction(sig, (act? &new_ka: NULL), (oact? &old_ka: NULL));
-
-        if (!ret && oact) {
-                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-                    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
-                        return -EFAULT;
-                __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-                __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-        }
-
-        return ret;
-}
-
-/*
- * When we have signals to deliver, we set up on the
- * user stack, going down from the original stack pointer:
- *      a sigregs struct
- *      a sigcontext struct
- *      a gap of __SIGNAL_FRAMESIZE bytes
- *
- * Each of these things must be a multiple of 16 bytes in size.
- *
- */
-struct sigregs {
-        struct mcontext mctx;           /* all the register values */
-        /* Programs using the rs6000/xcoff abi can save up to 19 gp regs
-           and 18 fp regs below sp before decrementing it. */
-        int             abigap[56];
-};
-
-/* We use the mc_pad field for the signal return trampoline. */
-#define tramp   mc_pad
-
-/*
- *  When we have rt signals to deliver, we set up on the
- *  user stack, going down from the original stack pointer:
- *      one rt_sigframe struct (siginfo + ucontext + ABI gap)
- *      a gap of __SIGNAL_FRAMESIZE+16 bytes
- *  (the +16 is to get the siginfo and ucontext in the same
- *  positions as in older kernels).
- *
- *  Each of these things must be a multiple of 16 bytes in size.
- *
- */
-struct rt_sigframe
-{
-        struct siginfo info;
-        struct ucontext uc;
-        /* Programs using the rs6000/xcoff abi can save up to 19 gp regs
-           and 18 fp regs below sp before decrementing it. */
-        int             abigap[56];
-};
-
-/*
- * Save the current user registers on the user stack.
- * We only save the altivec/spe registers if the process has used
- * altivec/spe instructions at some point.
- */
-static int
-save_user_regs(struct pt_regs *regs, struct mcontext __user *frame, int sigret)
-{
-        /* save general and floating-point registers */
-        CHECK_FULL_REGS(regs);
-        preempt_disable();
-        if (regs->msr & MSR_FP)
-                giveup_fpu(current);
-#ifdef CONFIG_ALTIVEC
-        if (current->thread.used_vr && (regs->msr & MSR_VEC))
-                giveup_altivec(current);
-#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_SPE
-        if (current->thread.used_spe && (regs->msr & MSR_SPE))
-                giveup_spe(current);
-#endif /* CONFIG_ALTIVEC */
-        preempt_enable();
-
-        if (__copy_to_user(&frame->mc_gregs, regs, GP_REGS_SIZE)
-            || __copy_to_user(&frame->mc_fregs, current->thread.fpr,
-                              ELF_NFPREG * sizeof(double)))
-                return 1;
-
-        current->thread.fpscr = 0;      /* turn off all fp exceptions */
-
-#ifdef CONFIG_ALTIVEC
-        /* save altivec registers */
-        if (current->thread.used_vr) {
-                if (__copy_to_user(&frame->mc_vregs, current->thread.vr,
-                                   ELF_NVRREG * sizeof(vector128)))
-                        return 1;
-                /* set MSR_VEC in the saved MSR value to indicate that
-                   frame->mc_vregs contains valid data */
-                if (__put_user(regs->msr | MSR_VEC, &frame->mc_gregs[PT_MSR]))
-                        return 1;
-        }
-        /* else assert((regs->msr & MSR_VEC) == 0) */
-
-        /* We always copy to/from vrsave, it's 0 if we don't have or don't
-         * use altivec. Since VSCR only contains 32 bits saved in the least
-         * significant bits of a vector, we "cheat" and stuff VRSAVE in the
-         * most significant bits of that same vector. --BenH
-         */
-        if (__put_user(current->thread.vrsave, (u32 __user *)&frame->mc_vregs[32]))
-                return 1;
-#endif /* CONFIG_ALTIVEC */
-
-#ifdef CONFIG_SPE
-        /* save spe registers */
-        if (current->thread.used_spe) {
-                if (__copy_to_user(&frame->mc_vregs, current->thread.evr,
-                                   ELF_NEVRREG * sizeof(u32)))
-                        return 1;
-                /* set MSR_SPE in the saved MSR value to indicate that
-                   frame->mc_vregs contains valid data */
-                if (__put_user(regs->msr | MSR_SPE, &frame->mc_gregs[PT_MSR]))
-                        return 1;
-        }
-        /* else assert((regs->msr & MSR_SPE) == 0) */
-
-        /* We always copy to/from spefscr */
-        if (__put_user(current->thread.spefscr, (u32 *)&frame->mc_vregs + ELF_NEVRREG))
-                return 1;
-#endif /* CONFIG_SPE */
-
-        if (sigret) {
-                /* Set up the sigreturn trampoline: li r0,sigret; sc */
-                if (__put_user(0x38000000UL + sigret, &frame->tramp[0])
-                    || __put_user(0x44000002UL, &frame->tramp[1]))
-                        return 1;
-                flush_icache_range((unsigned long) &frame->tramp[0],
-                                   (unsigned long) &frame->tramp[2]);
-        }
-
-        return 0;
-}
-
-/*
- * Restore the current user register values from the user stack,
- * (except for MSR).
- */
-static int
-restore_user_regs(struct pt_regs *regs, struct mcontext __user *sr, int sig)
-{
-        unsigned long save_r2 = 0;
-#if defined(CONFIG_ALTIVEC) || defined(CONFIG_SPE)
-        unsigned long msr;
-#endif
-
-        /* backup/restore the TLS as we don't want it to be modified */
-        if (!sig)
-                save_r2 = regs->gpr[2];
-        /* copy up to but not including MSR */
-        if (__copy_from_user(regs, &sr->mc_gregs, PT_MSR * sizeof(elf_greg_t)))
-                return 1;
-        /* copy from orig_r3 (the word after the MSR) up to the end */
-        if (__copy_from_user(&regs->orig_gpr3, &sr->mc_gregs[PT_ORIG_R3],
-                             GP_REGS_SIZE - PT_ORIG_R3 * sizeof(elf_greg_t)))
-                return 1;
-        if (!sig)
-                regs->gpr[2] = save_r2;
-
-        /* force the process to reload the FP registers from
-           current->thread when it next does FP instructions */
-        regs->msr &= ~(MSR_FP | MSR_FE0 | MSR_FE1);
-        if (__copy_from_user(current->thread.fpr, &sr->mc_fregs,
-                             sizeof(sr->mc_fregs)))
-                return 1;
-
-#ifdef CONFIG_ALTIVEC
-        /* force the process to reload the altivec registers from
-           current->thread when it next does altivec instructions */
-        regs->msr &= ~MSR_VEC;
-        if (!__get_user(msr, &sr->mc_gregs[PT_MSR]) && (msr & MSR_VEC) != 0) {
-                /* restore altivec registers from the stack */
-                if (__copy_from_user(current->thread.vr, &sr->mc_vregs,
-                                     sizeof(sr->mc_vregs)))
-                        return 1;
-        } else if (current->thread.used_vr)
-                memset(&current->thread.vr, 0, ELF_NVRREG * sizeof(vector128));
-
-        /* Always get VRSAVE back */
-        if (__get_user(current->thread.vrsave, (u32 __user *)&sr->mc_vregs[32]))
-                return 1;
-#endif /* CONFIG_ALTIVEC */
-
-#ifdef CONFIG_SPE
-        /* force the process to reload the spe registers from
-           current->thread when it next does spe instructions */
-        regs->msr &= ~MSR_SPE;
-        if (!__get_user(msr, &sr->mc_gregs[PT_MSR]) && (msr & MSR_SPE) != 0) {
-                /* restore spe registers from the stack */
-                if (__copy_from_user(current->thread.evr, &sr->mc_vregs,
-                                     ELF_NEVRREG * sizeof(u32)))
-                        return 1;
-        } else if (current->thread.used_spe)
-                memset(&current->thread.evr, 0, ELF_NEVRREG * sizeof(u32));
-
-        /* Always get SPEFSCR back */
-        if (__get_user(current->thread.spefscr, (u32 *)&sr->mc_vregs + ELF_NEVRREG))
-                return 1;
-#endif /* CONFIG_SPE */
-
-#ifndef CONFIG_SMP
-        preempt_disable();
-        if (last_task_used_math == current)
-                last_task_used_math = NULL;
-        if (last_task_used_altivec == current)
-                last_task_used_altivec = NULL;
-        if (last_task_used_spe == current)
-                last_task_used_spe = NULL;
-        preempt_enable();
-#endif
-        return 0;
-}
-
-/*
- * Restore the user process's signal mask
- */
-static void
-restore_sigmask(sigset_t *set)
-{
-        sigdelsetmask(set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = *set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-}
-
-/*
- * Set up a signal frame for a "real-time" signal handler
- * (one which gets siginfo).
- */
-static void
-handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
-                 siginfo_t *info, sigset_t *oldset, struct pt_regs * regs,
-                 unsigned long newsp)
-{
-        struct rt_sigframe __user *rt_sf;
-        struct mcontext __user *frame;
-        unsigned long origsp = newsp;
-
-        /* Set up Signal Frame */
-        /* Put a Real Time Context onto stack */
-        newsp -= sizeof(*rt_sf);
-        rt_sf = (struct rt_sigframe __user *) newsp;
-
-        /* create a stack frame for the caller of the handler */
-        newsp -= __SIGNAL_FRAMESIZE + 16;
-
-        if (!access_ok(VERIFY_WRITE, (void __user *) newsp, origsp - newsp))
-                goto badframe;
-
-        /* Put the siginfo & fill in most of the ucontext */
-        if (copy_siginfo_to_user(&rt_sf->info, info)
-            || __put_user(0, &rt_sf->uc.uc_flags)
-            || __put_user(0, &rt_sf->uc.uc_link)
-            || __put_user(current->sas_ss_sp, &rt_sf->uc.uc_stack.ss_sp)
-            || __put_user(sas_ss_flags(regs->gpr[1]),
-                          &rt_sf->uc.uc_stack.ss_flags)
-            || __put_user(current->sas_ss_size, &rt_sf->uc.uc_stack.ss_size)
-            || __put_user(&rt_sf->uc.uc_mcontext, &rt_sf->uc.uc_regs)
-            || __copy_to_user(&rt_sf->uc.uc_sigmask, oldset, sizeof(*oldset)))
-                goto badframe;
-
-        /* Save user registers on the stack */
-        frame = &rt_sf->uc.uc_mcontext;
-        if (save_user_regs(regs, frame, __NR_rt_sigreturn))
-                goto badframe;
-
-        if (put_user(regs->gpr[1], (unsigned long __user *)newsp))
-                goto badframe;
-        regs->gpr[1] = newsp;
-        regs->gpr[3] = sig;
-        regs->gpr[4] = (unsigned long) &rt_sf->info;
-        regs->gpr[5] = (unsigned long) &rt_sf->uc;
-        regs->gpr[6] = (unsigned long) rt_sf;
-        regs->nip = (unsigned long) ka->sa.sa_handler;
-        regs->link = (unsigned long) frame->tramp;
-        regs->trap = 0;
-
-        return;
-
-badframe:
-#ifdef DEBUG_SIG
-        printk("badframe in handle_rt_signal, regs=%p frame=%p newsp=%lx\n",
-               regs, frame, newsp);
-#endif
-        force_sigsegv(sig, current);
-}
-
-static int do_setcontext(struct ucontext __user *ucp, struct pt_regs *regs, int sig)
-{
-        sigset_t set;
-        struct mcontext __user *mcp;
-
-        if (__copy_from_user(&set, &ucp->uc_sigmask, sizeof(set))
-            || __get_user(mcp, &ucp->uc_regs))
-                return -EFAULT;
-        restore_sigmask(&set);
-        if (restore_user_regs(regs, mcp, sig))
-                return -EFAULT;
-
-        return 0;
-}
-
-int sys_swapcontext(struct ucontext __user *old_ctx,
-                    struct ucontext __user *new_ctx,
-                    int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
-{
-        unsigned char tmp;
-
-        /* Context size is for future use. Right now, we only make sure
-         * we are passed something we understand
-         */
-        if (ctx_size < sizeof(struct ucontext))
-                return -EINVAL;
-
-        if (old_ctx != NULL) {
-                if (!access_ok(VERIFY_WRITE, old_ctx, sizeof(*old_ctx))
-                    || save_user_regs(regs, &old_ctx->uc_mcontext, 0)
-                    || __copy_to_user(&old_ctx->uc_sigmask,
-                                      &current->blocked, sizeof(sigset_t))
-                    || __put_user(&old_ctx->uc_mcontext, &old_ctx->uc_regs))
-                        return -EFAULT;
-        }
-        if (new_ctx == NULL)
-                return 0;
-        if (!access_ok(VERIFY_READ, new_ctx, sizeof(*new_ctx))
-            || __get_user(tmp, (u8 __user *) new_ctx)
-            || __get_user(tmp, (u8 __user *) (new_ctx + 1) - 1))
-                return -EFAULT;
-
-        /*
-         * If we get a fault copying the context into the kernel's
-         * image of the user's registers, we can't just return -EFAULT
-         * because the user's registers will be corrupted.  For instance
-         * the NIP value may have been updated but not some of the
-         * other registers.  Given that we have done the access_ok
-         * and successfully read the first and last bytes of the region
-         * above, this should only happen in an out-of-memory situation
-         * or if another thread unmaps the region containing the context.
-         * We kill the task with a SIGSEGV in this situation.
-         */
-        if (do_setcontext(new_ctx, regs, 0))
-                do_exit(SIGSEGV);
-        sigreturn_exit(regs);
-        /* doesn't actually return back to here */
-        return 0;
-}
-
-int sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
-                     struct pt_regs *regs)
-{
-        struct rt_sigframe __user *rt_sf;
-
-        /* Always make any pending restarted system calls return -EINTR */
-        current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-        rt_sf = (struct rt_sigframe __user *)
-                (regs->gpr[1] + __SIGNAL_FRAMESIZE + 16);
-        if (!access_ok(VERIFY_READ, rt_sf, sizeof(struct rt_sigframe)))
-                goto bad;
-        if (do_setcontext(&rt_sf->uc, regs, 1))
-                goto bad;
-
-        /*
-         * It's not clear whether or why it is desirable to save the
-         * sigaltstack setting on signal delivery and restore it on
-         * signal return.  But other architectures do this and we have
-         * always done it up until now so it is probably better not to
-         * change it.  -- paulus
-         */
-        do_sigaltstack(&rt_sf->uc.uc_stack, NULL, regs->gpr[1]);
-
-        sigreturn_exit(regs);           /* doesn't return here */
-        return 0;
-
- bad:
-        force_sig(SIGSEGV, current);
-        return 0;
-}
-
-int sys_debug_setcontext(struct ucontext __user *ctx,
-                         int ndbg, struct sig_dbg_op __user *dbg,
-                         int r6, int r7, int r8,
-                         struct pt_regs *regs)
-{
-        struct sig_dbg_op op;
-        int i;
-        unsigned long new_msr = regs->msr;
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-        unsigned long new_dbcr0 = current->thread.dbcr0;
-#endif
-
-        for (i=0; i<ndbg; i++) {
-                if (__copy_from_user(&op, dbg, sizeof(op)))
-                        return -EFAULT;
-                switch (op.dbg_type) {
-                case SIG_DBG_SINGLE_STEPPING:
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-                        if (op.dbg_value) {
-                                new_msr |= MSR_DE;
-                                new_dbcr0 |= (DBCR0_IDM | DBCR0_IC);
-                        } else {
-                                new_msr &= ~MSR_DE;
-                                new_dbcr0 &= ~(DBCR0_IDM | DBCR0_IC);
-                        }
-#else
-                        if (op.dbg_value)
-                                new_msr |= MSR_SE;
-                        else
-                                new_msr &= ~MSR_SE;
-#endif
-                        break;
-                case SIG_DBG_BRANCH_TRACING:
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-                        return -EINVAL;
-#else
-                        if (op.dbg_value)
-                                new_msr |= MSR_BE;
-                        else
-                                new_msr &= ~MSR_BE;
-#endif
-                        break;
-
-                default:
-                        return -EINVAL;
-                }
-        }
-
-        /* We wait until here to actually install the values in the
-           registers so if we fail in the above loop, it will not
-           affect the contents of these registers.  After this point,
-           failure is a problem, anyway, and it's very unlikely unless
-           the user is really doing something wrong. */
-        regs->msr = new_msr;
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-        current->thread.dbcr0 = new_dbcr0;
-#endif
-
-        /*
-         * If we get a fault copying the context into the kernel's
-         * image of the user's registers, we can't just return -EFAULT
-         * because the user's registers will be corrupted.  For instance
-         * the NIP value may have been updated but not some of the
-         * other registers.  Given that we have done the access_ok
-         * and successfully read the first and last bytes of the region
-         * above, this should only happen in an out-of-memory situation
-         * or if another thread unmaps the region containing the context.
-         * We kill the task with a SIGSEGV in this situation.
-         */
-        if (do_setcontext(ctx, regs, 1)) {
-                force_sig(SIGSEGV, current);
-                goto out;
-        }
-
-        /*
-         * It's not clear whether or why it is desirable to save the
-         * sigaltstack setting on signal delivery and restore it on
-         * signal return.  But other architectures do this and we have
-         * always done it up until now so it is probably better not to
-         * change it.  -- paulus
-         */
-        do_sigaltstack(&ctx->uc_stack, NULL, regs->gpr[1]);
-
-        sigreturn_exit(regs);
-        /* doesn't actually return back to here */
-
- out:
-        return 0;
-}
-
-/*
- * OK, we're invoking a handler
- */
-static void
-handle_signal(unsigned long sig, struct k_sigaction *ka,
-              siginfo_t *info, sigset_t *oldset, struct pt_regs * regs,
-              unsigned long newsp)
-{
-        struct sigcontext __user *sc;
-        struct sigregs __user *frame;
-        unsigned long origsp = newsp;
-
-        /* Set up Signal Frame */
-        newsp -= sizeof(struct sigregs);
-        frame = (struct sigregs __user *) newsp;
-
-        /* Put a sigcontext on the stack */
-        newsp -= sizeof(*sc);
-        sc = (struct sigcontext __user *) newsp;
-
-        /* create a stack frame for the caller of the handler */
-        newsp -= __SIGNAL_FRAMESIZE;
-
-        if (!access_ok(VERIFY_WRITE, (void __user *) newsp, origsp - newsp))
-                goto badframe;
-
-#if _NSIG != 64
-#error "Please adjust handle_signal()"
-#endif
-        if (__put_user((unsigned long) ka->sa.sa_handler, &sc->handler)
-            || __put_user(oldset->sig[0], &sc->oldmask)
-            || __put_user(oldset->sig[1], &sc->_unused[3])
-            || __put_user((struct pt_regs __user *)frame, &sc->regs)
-            || __put_user(sig, &sc->signal))
-                goto badframe;
-
-        if (save_user_regs(regs, &frame->mctx, __NR_sigreturn))
-                goto badframe;
-
-        if (put_user(regs->gpr[1], (unsigned long __user *)newsp))
-                goto badframe;
-        regs->gpr[1] = newsp;
-        regs->gpr[3] = sig;
-        regs->gpr[4] = (unsigned long) sc;
-        regs->nip = (unsigned long) ka->sa.sa_handler;
-        regs->link = (unsigned long) frame->mctx.tramp;
-        regs->trap = 0;
-
-        return;
-
-badframe:
-#ifdef DEBUG_SIG
-        printk("badframe in handle_signal, regs=%p frame=%p newsp=%lx\n",
-               regs, frame, newsp);
-#endif
-        force_sigsegv(sig, current);
-}
-
-/*
- * Do a signal return; undo the signal stack.
- */
-int sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
-                  struct pt_regs *regs)
-{
-        struct sigcontext __user *sc;
-        struct sigcontext sigctx;
-        struct mcontext __user *sr;
-        sigset_t set;
-
-        /* Always make any pending restarted system calls return -EINTR */
-        current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-        sc = (struct sigcontext __user *)(regs->gpr[1] + __SIGNAL_FRAMESIZE);
-        if (copy_from_user(&sigctx, sc, sizeof(sigctx)))
-                goto badframe;
-
-        set.sig[0] = sigctx.oldmask;
-        set.sig[1] = sigctx._unused[3];
-        restore_sigmask(&set);
-
-        sr = (struct mcontext __user *) sigctx.regs;
-        if (!access_ok(VERIFY_READ, sr, sizeof(*sr))
-            || restore_user_regs(regs, sr, 1))
-                goto badframe;
-
-        sigreturn_exit(regs);           /* doesn't return */
-        return 0;
-
-badframe:
-        force_sig(SIGSEGV, current);
-        return 0;
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- */
-int do_signal(sigset_t *oldset, struct pt_regs *regs)
-{
-        siginfo_t info;
-        struct k_sigaction ka;
-        unsigned long frame, newsp;
-        int signr, ret;
-
-        if (try_to_freeze()) {
-                signr = 0;
-                if (!signal_pending(current))
-                        goto no_signal;
-        }
-
-        if (!oldset)
-                oldset = &current->blocked;
-
-        newsp = frame = 0;
-
-        signr = get_signal_to_deliver(&info, &ka, regs, NULL);
- no_signal:
-        if (TRAP(regs) == 0x0C00                /* System Call! */
-            && regs->ccr & 0x10000000           /* error signalled */
-            && ((ret = regs->gpr[3]) == ERESTARTSYS
-                || ret == ERESTARTNOHAND || ret == ERESTARTNOINTR
-                || ret == ERESTART_RESTARTBLOCK)) {
-
-                if (signr > 0
-                    && (ret == ERESTARTNOHAND || ret == ERESTART_RESTARTBLOCK
-                        || (ret == ERESTARTSYS
-                            && !(ka.sa.sa_flags & SA_RESTART)))) {
-                        /* make the system call return an EINTR error */
-                        regs->result = -EINTR;
-                        regs->gpr[3] = EINTR;
-                        /* note that the cr0.SO bit is already set */
-                } else {
-                        regs->nip -= 4; /* Back up & retry system call */
-                        regs->result = 0;
-                        regs->trap = 0;
-                        if (ret == ERESTART_RESTARTBLOCK)
-                                regs->gpr[0] = __NR_restart_syscall;
-                        else
-                                regs->gpr[3] = regs->orig_gpr3;
-                }
-        }
-
-        if (signr == 0)
-                return 0;               /* no signals delivered */
-
-        if ((ka.sa.sa_flags & SA_ONSTACK) && current->sas_ss_size
-            && !on_sig_stack(regs->gpr[1]))
-                newsp = current->sas_ss_sp + current->sas_ss_size;
-        else
-                newsp = regs->gpr[1];
-        newsp &= ~0xfUL;
-
-        /* Whee!  Actually deliver the signal.  */
-        if (ka.sa.sa_flags & SA_SIGINFO)
-                handle_rt_signal(signr, &ka, &info, oldset, regs, newsp);
-        else
-                handle_signal(signr, &ka, &info, oldset, regs, newsp);
-
-        spin_lock_irq(&current->sighand->siglock);
-        sigorsets(&current->blocked,&current->blocked,&ka.sa.sa_mask);
-        if (!(ka.sa.sa_flags & SA_NODEFER))
-                sigaddset(&current->blocked, signr);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        return 1;
-}
-
diff --git a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c
index 726fe7ce1747..bc5bf1124836 100644
--- a/arch/ppc/kernel/smp.c
+++ b/arch/ppc/kernel/smp.c
@@ -34,11 +34,11 @@
 #include <asm/thread_info.h>
 #include <asm/tlbflush.h>
 #include <asm/xmon.h>
+#include <asm/machdep.h>
 
 volatile int smp_commenced;
 int smp_tb_synchronized;
 struct cpuinfo_PPC cpu_data[NR_CPUS];
-struct klock_info_struct klock_info = { KLOCK_CLEAR, 0 };
 atomic_t ipi_recv;
 atomic_t ipi_sent;
 cpumask_t cpu_online_map;
@@ -51,7 +51,7 @@ EXPORT_SYMBOL(cpu_online_map);
 EXPORT_SYMBOL(cpu_possible_map);
 
 /* SMP operations for this machine */
-static struct smp_ops_t *smp_ops;
+struct smp_ops_t *smp_ops;
 
 /* all cpu mappings are 1-1 -- Cort */
 volatile unsigned long cpu_callin_map[NR_CPUS];
@@ -74,11 +74,11 @@ extern void __save_cpu_setup(void);
 #define PPC_MSG_XMON_BREAK      3
 
 static inline void
-smp_message_pass(int target, int msg, unsigned long data, int wait)
+smp_message_pass(int target, int msg)
 {
-        if (smp_ops){
+        if (smp_ops) {
                 atomic_inc(&ipi_sent);
-                smp_ops->message_pass(target,msg,data,wait);
+                smp_ops->message_pass(target, msg);
         }
 }
 
@@ -119,7 +119,7 @@ void smp_message_recv(int msg, struct pt_regs *regs)
 void smp_send_tlb_invalidate(int cpu)
 {
         if ( PVR_VER(mfspr(SPRN_PVR)) == 8 )
-                smp_message_pass(MSG_ALL_BUT_SELF, PPC_MSG_INVALIDATE_TLB, 0, 0);
+                smp_message_pass(MSG_ALL_BUT_SELF, PPC_MSG_INVALIDATE_TLB);
 }
 
 void smp_send_reschedule(int cpu)
@@ -135,13 +135,13 @@ void smp_send_reschedule(int cpu)
          */
         /* This is only used if `cpu' is running an idle task,
            so it will reschedule itself anyway... */
-        smp_message_pass(cpu, PPC_MSG_RESCHEDULE, 0, 0);
+        smp_message_pass(cpu, PPC_MSG_RESCHEDULE);
 }
 
 #ifdef CONFIG_XMON
 void smp_send_xmon_break(int cpu)
 {
-        smp_message_pass(cpu, PPC_MSG_XMON_BREAK, 0, 0);
+        smp_message_pass(cpu, PPC_MSG_XMON_BREAK);
 }
 #endif /* CONFIG_XMON */
 
@@ -224,7 +224,7 @@ static int __smp_call_function(void (*func) (void *info), void *info,
         spin_lock(&call_lock);
         call_data = &data;
         /* Send a message to all other CPUs and wait for them to respond */
-        smp_message_pass(target, PPC_MSG_CALL_FUNCTION, 0, 0);
+        smp_message_pass(target, PPC_MSG_CALL_FUNCTION);
 
         /* Wait for response */
         timeout = 1000000;
@@ -294,7 +294,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         smp_store_cpu_info(smp_processor_id());
         cpu_callin_map[smp_processor_id()] = 1;
 
-        smp_ops = ppc_md.smp_ops;
         if (smp_ops == NULL) {
                 printk("SMP not supported on this machine.\n");
                 return;
@@ -308,9 +307,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         /* Backup CPU 0 state */
         __save_cpu_setup();
 
-        if (smp_ops->space_timers)
-                smp_ops->space_timers(num_cpus);
-
         for_each_cpu(cpu) {
                 if (cpu == smp_processor_id())
                         continue;
diff --git a/arch/ppc/kernel/syscalls.c b/arch/ppc/kernel/syscalls.c
deleted file mode 100644
index 127f040de9de..000000000000
--- a/arch/ppc/kernel/syscalls.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * arch/ppc/kernel/sys_ppc.c
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * Derived from "arch/i386/kernel/sys_i386.c"
- * Adapted from the i386 version by Gary Thomas
- * Modified by Cort Dougan (cort@cs.nmt.edu)
- * and Paul Mackerras (paulus@cs.anu.edu.au).
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/PPC
- * platform.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/sys.h>
-#include <linux/ipc.h>
-#include <linux/utsname.h>
-#include <linux/file.h>
-#include <linux/unistd.h>
-
-#include <asm/uaccess.h>
-#include <asm/ipc.h>
-#include <asm/semaphore.h>
-
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-int
-sys_ipc (uint call, int first, int second, int third, void __user *ptr, long fifth)
-{
-        int version, ret;
-
-        version = call >> 16; /* hack for backward compatibility */
-        call &= 0xffff;
-
-        ret = -ENOSYS;
-        switch (call) {
-        case SEMOP:
-                ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
-                                      second, NULL);
-                break;
-        case SEMTIMEDOP:
-                ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
-                                      second, (const struct timespec __user *) fifth);
-                break;
-        case SEMGET:
-                ret = sys_semget (first, second, third);
-                break;
-        case SEMCTL: {
-                union semun fourth;
-
-                if (!ptr)
-                        break;
-                if ((ret = access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
-                    || (ret = get_user(fourth.__pad, (void __user *__user *)ptr)))
-                        break;
-                ret = sys_semctl (first, second, third, fourth);
-                break;
-                }
-        case MSGSND:
-                ret = sys_msgsnd (first, (struct msgbuf __user *) ptr, second, third);
-                break;
-        case MSGRCV:
-                switch (version) {
-                case 0: {
-                        struct ipc_kludge tmp;
-
-                        if (!ptr)
-                                break;
-                        if ((ret = access_ok(VERIFY_READ, ptr, sizeof(tmp)) ? 0 : -EFAULT)
-                            || (ret = copy_from_user(&tmp,
-                                        (struct ipc_kludge __user *) ptr,
-                                        sizeof (tmp)) ? -EFAULT : 0))
-                                break;
-                        ret = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp,
-                                          third);
-                        break;
-                        }
-                default:
-                        ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
-                                          second, fifth, third);
-                        break;
-                }
-                break;
-        case MSGGET:
-                ret = sys_msgget ((key_t) first, second);
-                break;
-        case MSGCTL:
-                ret = sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
-                break;
-        case SHMAT: {
-                ulong raddr;
-
-                if ((ret = access_ok(VERIFY_WRITE, (ulong __user *) third,
-                                       sizeof(ulong)) ? 0 : -EFAULT))
-                        break;
-                ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-                if (ret)
-                        break;
-                ret = put_user (raddr, (ulong __user *) third);
-                break;
-                }
-        case SHMDT:
-                ret = sys_shmdt ((char __user *)ptr);
-                break;
-        case SHMGET:
-                ret = sys_shmget (first, second, third);
-                break;
-        case SHMCTL:
-                ret = sys_shmctl (first, second, (struct shmid_ds __user *) ptr);
-                break;
-        }
-
-        return ret;
-}
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-int sys_pipe(int __user *fildes)
-{
-        int fd[2];
-        int error;
-
-        error = do_pipe(fd);
-        if (!error) {
-                if (copy_to_user(fildes, fd, 2*sizeof(int)))
-                        error = -EFAULT;
-        }
-        return error;
-}
-
-static inline unsigned long
-do_mmap2(unsigned long addr, size_t len,
-         unsigned long prot, unsigned long flags,
-         unsigned long fd, unsigned long pgoff)
-{
-        struct file * file = NULL;
-        int ret = -EBADF;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                if (!(file = fget(fd)))
-                        goto out;
-        }
-
-        down_write(&current->mm->mmap_sem);
-        ret = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&current->mm->mmap_sem);
-        if (file)
-                fput(file);
-out:
-        return ret;
-}
-
-unsigned long sys_mmap2(unsigned long addr, size_t len,
-                        unsigned long prot, unsigned long flags,
-                        unsigned long fd, unsigned long pgoff)
-{
-        return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-unsigned long sys_mmap(unsigned long addr, size_t len,
-                       unsigned long prot, unsigned long flags,
-                       unsigned long fd, off_t offset)
-{
-        int err = -EINVAL;
-
-        if (offset & ~PAGE_MASK)
-                goto out;
-
-        err = do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-out:
-        return err;
-}
-
-/*
- * Due to some executables calling the wrong select we sometimes
- * get wrong args.  This determines how the args are being passed
- * (a single ptr to them all args passed) then calls
- * sys_select() with the appropriate args. -- Cort
- */
-int
-ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp)
-{
-        if ( (unsigned long)n >= 4096 )
-        {
-                unsigned long __user *buffer = (unsigned long __user *)n;
-                if (!access_ok(VERIFY_READ, buffer, 5*sizeof(unsigned long))
-                    || __get_user(n, buffer)
-                    || __get_user(inp, ((fd_set __user * __user *)(buffer+1)))
-                    || __get_user(outp, ((fd_set  __user * __user *)(buffer+2)))
-                    || __get_user(exp, ((fd_set  __user * __user *)(buffer+3)))
-                    || __get_user(tvp, ((struct timeval  __user * __user *)(buffer+4))))
-                        return -EFAULT;
-        }
-        return sys_select(n, inp, outp, exp, tvp);
-}
-
-int sys_uname(struct old_utsname __user * name)
-{
-        int err = -EFAULT;
-
-        down_read(&uts_sem);
-        if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
-                err = 0;
-        up_read(&uts_sem);
-        return err;
-}
-
-int sys_olduname(struct oldold_utsname __user * name)
-{
-        int error;
-
-        if (!name)
-                return -EFAULT;
-        if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
-                return -EFAULT;
-
-        down_read(&uts_sem);
-        error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
-        error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
-        error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
-        error -= __put_user(0,name->release+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
-        error -= __put_user(0,name->version+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
-        error = __put_user(0,name->machine+__OLD_UTS_LEN);
-        up_read(&uts_sem);
-
-        error = error ? -EFAULT : 0;
-        return error;
-}
-
-/*
- * We put the arguments in a different order so we only use 6
- * registers for arguments, rather than 7 as sys_fadvise64_64 needs
- * (because `offset' goes in r5/r6).
- */
-long ppc_fadvise64_64(int fd, int advice, loff_t offset, loff_t len)
-{
-        return sys_fadvise64_64(fd, offset, len, advice);
-}
diff --git a/arch/ppc/kernel/time.c b/arch/ppc/kernel/time.c
index 22d7fd1e0aea..53ea723af60a 100644
--- a/arch/ppc/kernel/time.c
+++ b/arch/ppc/kernel/time.c
@@ -66,11 +66,6 @@
 
 #include <asm/time.h>
 
-/* XXX false sharing with below? */
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned long disarm_decr[NR_CPUS];
 
 extern struct timezone sys_tz;
@@ -121,6 +116,15 @@ unsigned long profile_pc(struct pt_regs *regs)
 EXPORT_SYMBOL(profile_pc);
 #endif
 
+void wakeup_decrementer(void)
+{
+        set_dec(tb_ticks_per_jiffy);
+        /* No currently-supported powerbook has a 601,
+         * so use get_tbl, not native
+         */
+        last_jiffy_stamp(0) = tb_last_stamp = get_tbl();
+}
+
 /*
  * timer_interrupt - gets called when the decrementer overflows,
  * with interrupts disabled.
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 961ede87be72..f265b81e7008 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -41,9 +41,14 @@
 #ifdef CONFIG_PMAC_BACKLIGHT
 #include <asm/backlight.h>
 #endif
-#include <asm/perfmon.h>
+#include <asm/pmc.h>
 
 #ifdef CONFIG_XMON
+extern int xmon_bpt(struct pt_regs *regs);
+extern int xmon_sstep(struct pt_regs *regs);
+extern int xmon_iabr_match(struct pt_regs *regs);
+extern int xmon_dabr_match(struct pt_regs *regs);
+
 void (*debugger)(struct pt_regs *regs) = xmon;
 int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
 int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
@@ -74,7 +79,7 @@ void (*debugger_fault_handler)(struct pt_regs *regs);
 
 DEFINE_SPINLOCK(die_lock);
 
-void die(const char * str, struct pt_regs * fp, long err)
+int die(const char * str, struct pt_regs * fp, long err)
 {
         static int die_counter;
         int nl = 0;
@@ -232,7 +237,7 @@ platform_machine_check(struct pt_regs *regs)
 {
 }
 
-void MachineCheckException(struct pt_regs *regs)
+void machine_check_exception(struct pt_regs *regs)
 {
         unsigned long reason = get_mc_reason(regs);
 
@@ -393,14 +398,14 @@ void SMIException(struct pt_regs *regs)
 #endif
 }
 
-void UnknownException(struct pt_regs *regs)
+void unknown_exception(struct pt_regs *regs)
 {
         printk("Bad trap at PC: %lx, MSR: %lx, vector=%lx    %s\n",
                regs->nip, regs->msr, regs->trap, print_tainted());
         _exception(SIGTRAP, regs, 0, 0);
 }
 
-void InstructionBreakpoint(struct pt_regs *regs)
+void instruction_breakpoint_exception(struct pt_regs *regs)
 {
         if (debugger_iabr_match(regs))
                 return;
@@ -575,7 +580,7 @@ extern struct bug_entry __start___bug_table[], __stop___bug_table[];
 #define module_find_bug(x)      NULL
 #endif
 
-static struct bug_entry *find_bug(unsigned long bugaddr)
+struct bug_entry *find_bug(unsigned long bugaddr)
 {
         struct bug_entry *bug;
 
@@ -622,7 +627,7 @@ int check_bug_trap(struct pt_regs *regs)
         return 0;
 }
 
-void ProgramCheckException(struct pt_regs *regs)
+void program_check_exception(struct pt_regs *regs)
 {
         unsigned int reason = get_reason(regs);
         extern int do_mathemu(struct pt_regs *regs);
@@ -654,7 +659,7 @@ void ProgramCheckException(struct pt_regs *regs)
                         giveup_fpu(current);
                 preempt_enable();
 
-                fpscr = current->thread.fpscr;
+                fpscr = current->thread.fpscr.val;
                 fpscr &= fpscr << 22;   /* mask summary bits with enables */
                 if (fpscr & FPSCR_VX)
                         code = FPE_FLTINV;
@@ -701,7 +706,7 @@ void ProgramCheckException(struct pt_regs *regs)
                 _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
 }
 
-void SingleStepException(struct pt_regs *regs)
+void single_step_exception(struct pt_regs *regs)
 {
         regs->msr &= ~(MSR_SE | MSR_BE);  /* Turn off 'trace' bits */
         if (debugger_sstep(regs))
@@ -709,7 +714,7 @@ void SingleStepException(struct pt_regs *regs)
         _exception(SIGTRAP, regs, TRAP_TRACE, 0);
 }
 
-void AlignmentException(struct pt_regs *regs)
+void alignment_exception(struct pt_regs *regs)
 {
         int fixed;
 
@@ -814,7 +819,18 @@ void TAUException(struct pt_regs *regs)
 }
 #endif /* CONFIG_INT_TAU */
 
-void AltivecUnavailException(struct pt_regs *regs)
+/*
+ * FP unavailable trap from kernel - print a message, but let
+ * the task use FP in the kernel until it returns to user mode.
+ */
+void kernel_fp_unavailable_exception(struct pt_regs *regs)
+{
+        regs->msr |= MSR_FP;
+        printk(KERN_ERR "floating point used in kernel (task=%p, pc=%lx)\n",
+               current, regs->nip);
+}
+
+void altivec_unavailable_exception(struct pt_regs *regs)
 {
         static int kernel_altivec_count;
 
@@ -835,7 +851,7 @@ void AltivecUnavailException(struct pt_regs *regs)
 }
 
 #ifdef CONFIG_ALTIVEC
-void AltivecAssistException(struct pt_regs *regs)
+void altivec_assist_exception(struct pt_regs *regs)
 {
         int err;
 
@@ -872,7 +888,7 @@ void AltivecAssistException(struct pt_regs *regs)
 #endif /* CONFIG_ALTIVEC */
 
 #ifdef CONFIG_E500
-void PerformanceMonitorException(struct pt_regs *regs)
+void performance_monitor_exception(struct pt_regs *regs)
 {
         perf_irq(regs);
 }
diff --git a/arch/ppc/kernel/vector.S b/arch/ppc/kernel/vector.S
deleted file mode 100644
index 82a21346bf80..000000000000
--- a/arch/ppc/kernel/vector.S
+++ /dev/null
@@ -1,217 +0,0 @@
-#include <asm/ppc_asm.h>
-#include <asm/processor.h>
-
-/*
- * The routines below are in assembler so we can closely control the
- * usage of floating-point registers.  These routines must be called
- * with preempt disabled.
- */
-        .data
-fpzero:
-        .long   0
-fpone:
-        .long   0x3f800000      /* 1.0 in single-precision FP */
-fphalf:
-        .long   0x3f000000      /* 0.5 in single-precision FP */
-
-        .text
-/*
- * Internal routine to enable floating point and set FPSCR to 0.
- * Don't call it from C; it doesn't use the normal calling convention.
- */
-fpenable:
-        mfmsr   r10
-        ori     r11,r10,MSR_FP
-        mtmsr   r11
-        isync
-        stfd    fr0,24(r1)
-        stfd    fr1,16(r1)
-        stfd    fr31,8(r1)
-        lis     r11,fpzero@ha
-        mffs    fr31
-        lfs     fr1,fpzero@l(r11)
-        mtfsf   0xff,fr1
-        blr
-
-fpdisable:
-        mtfsf   0xff,fr31
-        lfd     fr31,8(r1)
-        lfd     fr1,16(r1)
-        lfd     fr0,24(r1)
-        mtmsr   r10
-        isync
-        blr
-
-/*
- * Vector add, floating point.
- */
-        .globl  vaddfp
-vaddfp:
-        stwu    r1,-32(r1)
-        mflr    r0
-        stw     r0,36(r1)
-        bl      fpenable
-        li      r0,4
-        mtctr   r0
-        li      r6,0
-1:      lfsx    fr0,r4,r6
-        lfsx    fr1,r5,r6
-        fadds   fr0,fr0,fr1
-        stfsx   fr0,r3,r6
-        addi    r6,r6,4
-        bdnz    1b
-        bl      fpdisable
-        lwz     r0,36(r1)
-        mtlr    r0
-        addi    r1,r1,32
-        blr
-
-/*
- * Vector subtract, floating point.
- */
-        .globl  vsubfp
-vsubfp:
-        stwu    r1,-32(r1)
-        mflr    r0
-        stw     r0,36(r1)
-        bl      fpenable
-        li      r0,4
-        mtctr   r0
-        li      r6,0
-1:      lfsx    fr0,r4,r6
-        lfsx    fr1,r5,r6
-        fsubs   fr0,fr0,fr1
-        stfsx   fr0,r3,r6
-        addi    r6,r6,4
-        bdnz    1b
-        bl      fpdisable
-        lwz     r0,36(r1)
-        mtlr    r0
-        addi    r1,r1,32
-        blr
-
-/*
- * Vector multiply and add, floating point.
- */
-        .globl  vmaddfp
-vmaddfp:
-        stwu    r1,-48(r1)
-        mflr    r0
-        stw     r0,52(r1)
-        bl      fpenable
-        stfd    fr2,32(r1)
-        li      r0,4
-        mtctr   r0
-        li      r7,0
-1:      lfsx    fr0,r4,r7
-        lfsx    fr1,r5,r7
-        lfsx    fr2,r6,r7
-        fmadds  fr0,fr0,fr2,fr1
-        stfsx   fr0,r3,r7
-        addi    r7,r7,4
-        bdnz    1b
-        lfd     fr2,32(r1)
-        bl      fpdisable
-        lwz     r0,52(r1)
-        mtlr    r0
-        addi    r1,r1,48
-        blr
-
-/*
- * Vector negative multiply and subtract, floating point.
- */
-        .globl  vnmsubfp
-vnmsubfp:
-        stwu    r1,-48(r1)
-        mflr    r0
-        stw     r0,52(r1)
-        bl      fpenable
-        stfd    fr2,32(r1)
-        li      r0,4
-        mtctr   r0
-        li      r7,0
-1:      lfsx    fr0,r4,r7
-        lfsx    fr1,r5,r7
-        lfsx    fr2,r6,r7
-        fnmsubs fr0,fr0,fr2,fr1
-        stfsx   fr0,r3,r7
-        addi    r7,r7,4
-        bdnz    1b
-        lfd     fr2,32(r1)
-        bl      fpdisable
-        lwz     r0,52(r1)
-        mtlr    r0
-        addi    r1,r1,48
-        blr
-
-/*
- * Vector reciprocal estimate.  We just compute 1.0/x.
- * r3 -> destination, r4 -> source.
- */
-        .globl  vrefp
-vrefp:
-        stwu    r1,-32(r1)
-        mflr    r0
-        stw     r0,36(r1)
-        bl      fpenable
-        lis     r9,fpone@ha
-        li      r0,4
-        lfs     fr1,fpone@l(r9)
-        mtctr   r0
-        li      r6,0
-1:      lfsx    fr0,r4,r6
-        fdivs   fr0,fr1,fr0
-        stfsx   fr0,r3,r6
-        addi    r6,r6,4
-        bdnz    1b
-        bl      fpdisable
-        lwz     r0,36(r1)
-        mtlr    r0
-        addi    r1,r1,32
-        blr
-
-/*
- * Vector reciprocal square-root estimate, floating point.
- * We use the frsqrte instruction for the initial estimate followed
- * by 2 iterations of Newton-Raphson to get sufficient accuracy.
- * r3 -> destination, r4 -> source.
- */
-        .globl  vrsqrtefp
-vrsqrtefp:
-        stwu    r1,-48(r1)
-        mflr    r0
-        stw     r0,52(r1)
-        bl      fpenable
-        stfd    fr2,32(r1)
-        stfd    fr3,40(r1)
-        stfd    fr4,48(r1)
-        stfd    fr5,56(r1)
-        lis     r9,fpone@ha
-        lis     r8,fphalf@ha
-        li      r0,4
-        lfs     fr4,fpone@l(r9)
-        lfs     fr5,fphalf@l(r8)
-        mtctr   r0
-        li      r6,0
-1:      lfsx    fr0,r4,r6
-        frsqrte fr1,fr0         /* r = frsqrte(s) */
-        fmuls   fr3,fr1,fr0     /* r * s */
-        fmuls   fr2,fr1,fr5     /* r * 0.5 */
-        fnmsubs fr3,fr1,fr3,fr4 /* 1 - s * r * r */
-        fmadds  fr1,fr2,fr3,fr1 /* r = r + 0.5 * r * (1 - s * r * r) */
-        fmuls   fr3,fr1,fr0     /* r * s */
-        fmuls   fr2,fr1,fr5     /* r * 0.5 */
-        fnmsubs fr3,fr1,fr3,fr4 /* 1 - s * r * r */
-        fmadds  fr1,fr2,fr3,fr1 /* r = r + 0.5 * r * (1 - s * r * r) */
-        stfsx   fr1,r3,r6
-        addi    r6,r6,4
-        bdnz    1b
-        lfd     fr5,56(r1)
-        lfd     fr4,48(r1)
-        lfd     fr3,40(r1)
-        lfd     fr2,32(r1)
-        bl      fpdisable
-        lwz     r0,36(r1)
-        mtlr    r0
-        addi    r1,r1,32
-        blr
diff --git a/arch/ppc/kernel/vmlinux.lds.S b/arch/ppc/kernel/vmlinux.lds.S
index 17d2db7e537d..09c6525cfa61 100644
--- a/arch/ppc/kernel/vmlinux.lds.S
+++ b/arch/ppc/kernel/vmlinux.lds.S
@@ -149,32 +149,6 @@ SECTIONS
 
   . = ALIGN(4096);
   _sextratext = .;
-  __pmac_begin = .;
-  .pmac.text : { *(.pmac.text) }
-  .pmac.data : { *(.pmac.data) }
-  . = ALIGN(4096);
-  __pmac_end = .;
-
-  . = ALIGN(4096);
-  __prep_begin = .;
-  .prep.text : { *(.prep.text) }
-  .prep.data : { *(.prep.data) }
-  . = ALIGN(4096);
-  __prep_end = .;
-
-  . = ALIGN(4096);
-  __chrp_begin = .;
-  .chrp.text : { *(.chrp.text) }
-  .chrp.data : { *(.chrp.data) }
-  . = ALIGN(4096);
-  __chrp_end = .;
-
-  . = ALIGN(4096);
-  __openfirmware_begin = .;
-  .openfirmware.text : { *(.openfirmware.text) }
-  .openfirmware.data : { *(.openfirmware.data) }
-  . = ALIGN(4096);
-  __openfirmware_end = .;
   _eextratext = .;
 
   __bss_start = .;
diff --git a/arch/ppc/lib/string.S b/arch/ppc/lib/string.S
index 36c9b97fd92a..2e258c49e8be 100644
--- a/arch/ppc/lib/string.S
+++ b/arch/ppc/lib/string.S
@@ -65,9 +65,9 @@
         .stabs  "arch/ppc/lib/",N_SO,0,0,0f
         .stabs  "string.S",N_SO,0,0,0f
 
-CACHELINE_BYTES = L1_CACHE_LINE_SIZE
-LG_CACHELINE_BYTES = LG_L1_CACHE_LINE_SIZE
-CACHELINE_MASK = (L1_CACHE_LINE_SIZE-1)
+CACHELINE_BYTES = L1_CACHE_BYTES
+LG_CACHELINE_BYTES = L1_CACHE_SHIFT
+CACHELINE_MASK = (L1_CACHE_BYTES-1)
 
 _GLOBAL(strcpy)
         addi    r5,r3,-1
@@ -265,12 +265,12 @@ _GLOBAL(cacheable_memcpy)
         dcbz    r11,r6
 #endif
         COPY_16_BYTES
-#if L1_CACHE_LINE_SIZE >= 32
+#if L1_CACHE_BYTES >= 32
         COPY_16_BYTES
-#if L1_CACHE_LINE_SIZE >= 64
+#if L1_CACHE_BYTES >= 64
         COPY_16_BYTES
         COPY_16_BYTES
-#if L1_CACHE_LINE_SIZE >= 128
+#if L1_CACHE_BYTES >= 128
         COPY_16_BYTES
         COPY_16_BYTES
         COPY_16_BYTES
@@ -485,12 +485,12 @@ _GLOBAL(__copy_tofrom_user)
         .text
 /* the main body of the cacheline loop */
         COPY_16_BYTES_WITHEX(0)
-#if L1_CACHE_LINE_SIZE >= 32
+#if L1_CACHE_BYTES >= 32
         COPY_16_BYTES_WITHEX(1)
-#if L1_CACHE_LINE_SIZE >= 64
+#if L1_CACHE_BYTES >= 64
         COPY_16_BYTES_WITHEX(2)
         COPY_16_BYTES_WITHEX(3)
-#if L1_CACHE_LINE_SIZE >= 128
+#if L1_CACHE_BYTES >= 128
         COPY_16_BYTES_WITHEX(4)
         COPY_16_BYTES_WITHEX(5)
         COPY_16_BYTES_WITHEX(6)
@@ -544,12 +544,12 @@ _GLOBAL(__copy_tofrom_user)
  * 104f (if in read part) or 105f (if in write part), after updating r5
  */
         COPY_16_BYTES_EXCODE(0)
-#if L1_CACHE_LINE_SIZE >= 32
+#if L1_CACHE_BYTES >= 32
         COPY_16_BYTES_EXCODE(1)
-#if L1_CACHE_LINE_SIZE >= 64
+#if L1_CACHE_BYTES >= 64
         COPY_16_BYTES_EXCODE(2)
         COPY_16_BYTES_EXCODE(3)
-#if L1_CACHE_LINE_SIZE >= 128
+#if L1_CACHE_BYTES >= 128
         COPY_16_BYTES_EXCODE(4)
         COPY_16_BYTES_EXCODE(5)
         COPY_16_BYTES_EXCODE(6)
diff --git a/arch/ppc/math-emu/sfp-machine.h b/arch/ppc/math-emu/sfp-machine.h
index 686e06d29186..4b17d83cfcdd 100644
--- a/arch/ppc/math-emu/sfp-machine.h
+++ b/arch/ppc/math-emu/sfp-machine.h
@@ -166,7 +166,7 @@ extern int  fp_pack_ds(void *, long, unsigned long, unsigned long, long, long);
 #include <linux/kernel.h>
 #include <linux/sched.h>
 
-#define __FPU_FPSCR     (current->thread.fpscr)
+#define __FPU_FPSCR     (current->thread.fpscr.val)
 
 /* We only actually write to the destination register
  * if exceptions signalled (if any) will not trap.
diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c
index f421a4b337f6..99b48abd3296 100644
--- a/arch/ppc/mm/init.c
+++ b/arch/ppc/mm/init.c
@@ -69,15 +69,12 @@ int init_bootmem_done;
 int boot_mapsize;
 #ifdef CONFIG_PPC_PMAC
 unsigned long agp_special_page;
+EXPORT_SYMBOL(agp_special_page);
 #endif
 
 extern char _end[];
 extern char etext[], _stext[];
 extern char __init_begin, __init_end;
-extern char __prep_begin, __prep_end;
-extern char __chrp_begin, __chrp_end;
-extern char __pmac_begin, __pmac_end;
-extern char __openfirmware_begin, __openfirmware_end;
 
 #ifdef CONFIG_HIGHMEM
 pte_t *kmap_pte;
@@ -167,14 +164,6 @@ void free_initmem(void)
 
         printk ("Freeing unused kernel memory:");
         FREESEC(init);
-        if (_machine != _MACH_Pmac)
-                FREESEC(pmac);
-        if (_machine != _MACH_chrp)
-                FREESEC(chrp);
-        if (_machine != _MACH_prep)
-                FREESEC(prep);
-        if (!have_of)
-                FREESEC(openfirmware);
         printk("\n");
         ppc_md.progress = NULL;
 #undef FREESEC
@@ -648,18 +637,16 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
  */
 int page_is_ram(unsigned long pfn)
 {
-        unsigned long paddr = (pfn << PAGE_SHIFT);
-
-        return paddr < __pa(high_memory);
+        return pfn < max_pfn;
 }
 
-pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr,
+pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
                               unsigned long size, pgprot_t vma_prot)
 {
         if (ppc_md.phys_mem_access_prot)
-                return ppc_md.phys_mem_access_prot(file, addr, size, vma_prot);
+                return ppc_md.phys_mem_access_prot(file, pfn, size, vma_prot);
 
-        if (!page_is_ram(addr >> PAGE_SHIFT))
+        if (!page_is_ram(pfn))
                 vma_prot = __pgprot(pgprot_val(vma_prot)
                                     | _PAGE_GUARDED | _PAGE_NO_CACHE);
         return vma_prot;
diff --git a/arch/ppc/oprofile/common.c b/arch/ppc/oprofile/common.c
deleted file mode 100644
index 3169c67abea7..000000000000
--- a/arch/ppc/oprofile/common.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * PPC 32 oprofile support
- * Based on PPC64 oprofile support
- * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * Copyright (C) Freescale Semiconductor, Inc 2004
- *
- * Author: Andy Fleming
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/oprofile.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <asm/ptrace.h>
-#include <asm/system.h>
-#include <asm/perfmon.h>
-#include <asm/cputable.h>
-
-#include "op_impl.h"
-
-static struct op_ppc32_model *model;
-
-static struct op_counter_config ctr[OP_MAX_COUNTER];
-static struct op_system_config sys;
-
-static void op_handle_interrupt(struct pt_regs *regs)
-{
-        model->handle_interrupt(regs, ctr);
-}
-
-static int op_ppc32_setup(void)
-{
-        /* Install our interrupt handler into the existing hook.  */
-        if(request_perfmon_irq(&op_handle_interrupt))
-                return -EBUSY;
-
-        mb();
-
-        /* Pre-compute the values to stuff in the hardware registers.  */
-        model->reg_setup(ctr, &sys, model->num_counters);
-
-#if 0
-        /* FIXME: Make multi-cpu work */
-        /* Configure the registers on all cpus.  */
-        on_each_cpu(model->reg_setup, NULL, 0, 1);
-#endif
-
-        return 0;
-}
-
-static void op_ppc32_shutdown(void)
-{
-        mb();
-
-        /* Remove our interrupt handler. We may be removing this module. */
-        free_perfmon_irq();
-}
-
-static void op_ppc32_cpu_start(void *dummy)
-{
-        model->start(ctr);
-}
-
-static int op_ppc32_start(void)
-{
-        on_each_cpu(op_ppc32_cpu_start, NULL, 0, 1);
-        return 0;
-}
-
-static inline void op_ppc32_cpu_stop(void *dummy)
-{
-        model->stop();
-}
-
-static void op_ppc32_stop(void)
-{
-        on_each_cpu(op_ppc32_cpu_stop, NULL, 0, 1);
-}
-
-static int op_ppc32_create_files(struct super_block *sb, struct dentry *root)
-{
-        int i;
-
-        for (i = 0; i < model->num_counters; ++i) {
-                struct dentry *dir;
-                char buf[3];
-
-                snprintf(buf, sizeof buf, "%d", i);
-                dir = oprofilefs_mkdir(sb, root, buf);
-
-                oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
-                oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
-                oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
-                oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
-                oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
-
-                /* FIXME: Not sure if this is used */
-                oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
-        }
-
-        oprofilefs_create_ulong(sb, root, "enable_kernel", &sys.enable_kernel);
-        oprofilefs_create_ulong(sb, root, "enable_user", &sys.enable_user);
-
-        /* Default to tracing both kernel and user */
-        sys.enable_kernel = 1;
-        sys.enable_user = 1;
-
-        return 0;
-}
-
-static struct oprofile_operations oprof_ppc32_ops = {
-        .create_files   = op_ppc32_create_files,
-        .setup          = op_ppc32_setup,
-        .shutdown       = op_ppc32_shutdown,
-        .start          = op_ppc32_start,
-        .stop           = op_ppc32_stop,
-        .cpu_type       = NULL          /* To be filled in below. */
-};
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
-        char *name;
-        int cpu_id = smp_processor_id();
-
-#ifdef CONFIG_FSL_BOOKE
-        model = &op_model_fsl_booke;
-#else
-        return -ENODEV;
-#endif
-
-        name = kmalloc(32, GFP_KERNEL);
-
-        if (NULL == name)
-                return -ENOMEM;
-
-        sprintf(name, "ppc/%s", cur_cpu_spec[cpu_id]->cpu_name);
-
-        oprof_ppc32_ops.cpu_type = name;
-
-        model->num_counters = cur_cpu_spec[cpu_id]->num_pmcs;
-
-        *ops = oprof_ppc32_ops;
-
-        printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
-               oprof_ppc32_ops.cpu_type);
-
-        return 0;
-}
-
-void oprofile_arch_exit(void)
-{
-        kfree(oprof_ppc32_ops.cpu_type);
-        oprof_ppc32_ops.cpu_type = NULL;
-}
diff --git a/arch/ppc/oprofile/op_impl.h b/arch/ppc/oprofile/op_impl.h
deleted file mode 100644
index bc336dc971e3..000000000000
--- a/arch/ppc/oprofile/op_impl.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * Based on alpha version.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef OP_IMPL_H
-#define OP_IMPL_H 1
-
-#define OP_MAX_COUNTER 8
-
-/* Per-counter configuration as set via oprofilefs.  */
-struct op_counter_config {
-        unsigned long enabled;
-        unsigned long event;
-        unsigned long count;
-        unsigned long kernel;
-        unsigned long user;
-        unsigned long unit_mask;
-};
-
-/* System-wide configuration as set via oprofilefs.  */
-struct op_system_config {
-        unsigned long enable_kernel;
-        unsigned long enable_user;
-};
-
-/* Per-arch configuration */
-struct op_ppc32_model {
-        void (*reg_setup) (struct op_counter_config *,
-                           struct op_system_config *,
-                           int num_counters);
-        void (*start) (struct op_counter_config *);
-        void (*stop) (void);
-        void (*handle_interrupt) (struct pt_regs *,
-                                  struct op_counter_config *);
-        int num_counters;
-};
-
-#endif /* OP_IMPL_H */
diff --git a/arch/ppc/platforms/4xx/bamboo.c b/arch/ppc/platforms/4xx/bamboo.c
index 78a403b48dba..159b228eca1e 100644
--- a/arch/ppc/platforms/4xx/bamboo.c
+++ b/arch/ppc/platforms/4xx/bamboo.c
@@ -51,7 +51,7 @@
 #include <syslib/gen550.h>
 #include <syslib/ibm440gx_common.h>
 
-bd_t __res;
+extern bd_t __res;
 
 static struct ibm44x_clocks clocks __initdata;
 
@@ -425,17 +425,7 @@ bamboo_setup_arch(void)
 void __init platform_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7)
 {
-        parse_bootinfo(find_bootinfo());
-
-        /*
-         * If we were passed in a board information, copy it into the
-         * residual data area.
-         */
-        if (r3)
-                __res = *(bd_t *)(r3 + KERNELBASE);
-
-
-        ibm44x_platform_init();
+        ibm44x_platform_init(r3, r4, r5, r6, r7);
 
         ppc_md.setup_arch = bamboo_setup_arch;
         ppc_md.show_cpuinfo = bamboo_show_cpuinfo;
diff --git a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c
index 27b778ab903b..64ebae19cdbb 100644
--- a/arch/ppc/platforms/4xx/ebony.c
+++ b/arch/ppc/platforms/4xx/ebony.c
@@ -54,7 +54,7 @@
 #include <syslib/gen550.h>
 #include <syslib/ibm440gp_common.h>
 
-bd_t __res;
+extern bd_t __res;
 
 static struct ibm44x_clocks clocks __initdata;
 
@@ -90,7 +90,7 @@ ebony_calibrate_decr(void)
          * on Rev. C silicon then errata forces us to
          * use the internal clock.
          */
-        if (strcmp(cur_cpu_spec[0]->cpu_name, "440GP Rev. B") == 0)
+        if (strcmp(cur_cpu_spec->cpu_name, "440GP Rev. B") == 0)
                 freq = EBONY_440GP_RB_SYSCLK;
         else
                 freq = EBONY_440GP_RC_SYSCLK;
@@ -317,16 +317,7 @@ ebony_setup_arch(void)
 void __init platform_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7)
 {
-        parse_bootinfo(find_bootinfo());
-
-        /*
-         * If we were passed in a board information, copy it into the
-         * residual data area.
-         */
-        if (r3)
-                __res = *(bd_t *)(r3 + KERNELBASE);
-
-        ibm44x_platform_init();
+        ibm44x_platform_init(r3, r4, r5, r6, r7);
 
         ppc_md.setup_arch = ebony_setup_arch;
         ppc_md.show_cpuinfo = ebony_show_cpuinfo;
diff --git a/arch/ppc/platforms/4xx/luan.c b/arch/ppc/platforms/4xx/luan.c
index 16d953bda22c..d810b736d9bf 100644
--- a/arch/ppc/platforms/4xx/luan.c
+++ b/arch/ppc/platforms/4xx/luan.c
@@ -52,7 +52,7 @@
 #include <syslib/ibm440gx_common.h>
 #include <syslib/ibm440sp_common.h>
 
-bd_t __res;
+extern bd_t __res;
 
 static struct ibm44x_clocks clocks __initdata;
 
@@ -355,16 +355,7 @@ luan_setup_arch(void)
 void __init platform_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7)
 {
-        parse_bootinfo(find_bootinfo());
-
-        /*
-         * If we were passed in a board information, copy it into the
-         * residual data area.
-         */
-        if (r3)
-                __res = *(bd_t *)(r3 + KERNELBASE);
-
-        ibm44x_platform_init();
+        ibm44x_platform_init(r3, r4, r5, r6, r7);
 
         ppc_md.setup_arch = luan_setup_arch;
         ppc_md.show_cpuinfo = luan_show_cpuinfo;
diff --git a/arch/ppc/platforms/4xx/ocotea.c b/arch/ppc/platforms/4xx/ocotea.c
index 506949c5dd29..73b2c98158f6 100644
--- a/arch/ppc/platforms/4xx/ocotea.c
+++ b/arch/ppc/platforms/4xx/ocotea.c
@@ -52,7 +52,7 @@
 #include <syslib/gen550.h>
 #include <syslib/ibm440gx_common.h>
 
-bd_t __res;
+extern bd_t __res;
 
 static struct ibm44x_clocks clocks __initdata;
 
@@ -286,6 +286,15 @@ ocotea_setup_arch(void)
 
         ibm440gx_tah_enable();
 
+        /*
+         * Determine various clocks.
+         * To be completely correct we should get SysClk
+         * from FPGA, because it can be changed by on-board switches
+         * --ebs
+         */
+        ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
+        ocp_sys_info.opb_bus_freq = clocks.opb;
+
         /* Setup TODC access */
         TODC_INIT(TODC_TYPE_DS1743,
                         0,
@@ -324,25 +333,7 @@ static void __init ocotea_init(void)
 void __init platform_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7)
 {
-        parse_bootinfo(find_bootinfo());
-
-        /*
-         * If we were passed in a board information, copy it into the
-         * residual data area.
-         */
-        if (r3)
-                __res = *(bd_t *)(r3 + KERNELBASE);
-
-        /*
-         * Determine various clocks.
-         * To be completely correct we should get SysClk
-         * from FPGA, because it can be changed by on-board switches
-         * --ebs
-         */
-        ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
-        ocp_sys_info.opb_bus_freq = clocks.opb;
-
-        ibm44x_platform_init();
+        ibm44x_platform_init(r3, r4, r5, r6, r7);
 
         ppc_md.setup_arch = ocotea_setup_arch;
         ppc_md.show_cpuinfo = ocotea_show_cpuinfo;
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h
index 1584cd77a9ef..58e44c042535 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.h
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
@@ -19,7 +19,6 @@
 
 #include <linux/config.h>
 #include <linux/init.h>
-#include <linux/seq_file.h>
 #include <syslib/ppc83xx_setup.h>
 #include <asm/ppcboot.h>
 
diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/platforms/85xx/mpc8540_ads.c
index 7dc8a68acfd0..7e952c1228cb 100644
--- a/arch/ppc/platforms/85xx/mpc8540_ads.c
+++ b/arch/ppc/platforms/85xx/mpc8540_ads.c
@@ -52,6 +52,10 @@
 
 #include <syslib/ppc85xx_setup.h>
 
+static const char *GFAR_PHY_0 = "phy0:0";
+static const char *GFAR_PHY_1 = "phy0:1";
+static const char *GFAR_PHY_3 = "phy0:3";
+
 /* ************************************************************************
  *
  * Setup the architecture
@@ -63,6 +67,7 @@ mpc8540ads_setup_arch(void)
         bd_t *binfo = (bd_t *) __res;
         unsigned int freq;
         struct gianfar_platform_data *pdata;
+        struct gianfar_mdio_data *mdata;
 
         /* get the core frequency */
         freq = binfo->bi_intfreq;
@@ -89,34 +94,35 @@ mpc8540ads_setup_arch(void)
         invalidate_tlbcam_entry(num_tlbcam_entries - 1);
 #endif
 
+        /* setup the board related info for the MDIO bus */
+        mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
+
+        mdata->irq[0] = MPC85xx_IRQ_EXT5;
+        mdata->irq[1] = MPC85xx_IRQ_EXT5;
+        mdata->irq[2] = -1;
+        mdata->irq[3] = MPC85xx_IRQ_EXT5;
+        mdata->irq[31] = -1;
+        mdata->paddr += binfo->bi_immr_base;
+
         /* setup the board related information for the enet controllers */
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 0;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_0;
                 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 1;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_1;
                 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_FEC);
         if (pdata) {
                 pdata->board_flags = 0;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 3;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_3;
                 memcpy(pdata->mac_addr, binfo->bi_enet2addr, 6);
         }
 
diff --git a/arch/ppc/platforms/85xx/mpc8560_ads.c b/arch/ppc/platforms/85xx/mpc8560_ads.c
index 8841fd7da6ee..208433f1e93a 100644
--- a/arch/ppc/platforms/85xx/mpc8560_ads.c
+++ b/arch/ppc/platforms/85xx/mpc8560_ads.c
@@ -56,6 +56,10 @@
 #include <syslib/ppc85xx_setup.h>
 
 
+static const char *GFAR_PHY_0 = "phy0:0";
+static const char *GFAR_PHY_1 = "phy0:1";
+static const char *GFAR_PHY_3 = "phy0:3";
+
 /* ************************************************************************
  *
  * Setup the architecture
@@ -68,6 +72,7 @@ mpc8560ads_setup_arch(void)
         bd_t *binfo = (bd_t *) __res;
         unsigned int freq;
         struct gianfar_platform_data *pdata;
+        struct gianfar_mdio_data *mdata;
 
         cpm2_reset();
 
@@ -86,24 +91,28 @@ mpc8560ads_setup_arch(void)
         mpc85xx_setup_hose();
 #endif
 
+        /* setup the board related info for the MDIO bus */
+        mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
+
+        mdata->irq[0] = MPC85xx_IRQ_EXT5;
+        mdata->irq[1] = MPC85xx_IRQ_EXT5;
+        mdata->irq[2] = -1;
+        mdata->irq[3] = MPC85xx_IRQ_EXT5;
+        mdata->irq[31] = -1;
+        mdata->paddr += binfo->bi_immr_base;
+
         /* setup the board related information for the enet controllers */
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 0;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_0;
                 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 1;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_1;
                 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
         }
 
diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h
index 3875e839cff7..84acf6e8d45e 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h
+++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h
@@ -19,7 +19,6 @@
 
 #include <linux/config.h>
 #include <linux/init.h>
-#include <linux/seq_file.h>
 #include <asm/ppcboot.h>
 
 #define BOARD_CCSRBAR           ((uint)0xe0000000)
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
index 9f9039498ae5..a21156967a5e 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
@@ -173,10 +173,7 @@ mpc85xx_cds_init_IRQ(void)
 #ifdef CONFIG_PCI
         openpic_hookup_cascade(PIRQ0A, "82c59 cascade", i8259_irq);
 
-        for (i = 0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-
-        i8259_init(0);
+        i8259_init(0, 0);
 #endif
 
 #ifdef CONFIG_CPM2
@@ -394,6 +391,9 @@ mpc85xx_cds_pcibios_fixup(void)
 
 TODC_ALLOC();
 
+static const char *GFAR_PHY_0 = "phy0:0";
+static const char *GFAR_PHY_1 = "phy0:1";
+
 /* ************************************************************************
  *
  * Setup the architecture
@@ -405,6 +405,7 @@ mpc85xx_cds_setup_arch(void)
         bd_t *binfo = (bd_t *) __res;
         unsigned int freq;
         struct gianfar_platform_data *pdata;
+        struct gianfar_mdio_data *mdata;
 
         /* get the core frequency */
         freq = binfo->bi_intfreq;
@@ -448,44 +449,42 @@ mpc85xx_cds_setup_arch(void)
         invalidate_tlbcam_entry(num_tlbcam_entries - 1);
 #endif
 
+        /* setup the board related info for the MDIO bus */
+        mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
+
+        mdata->irq[0] = MPC85xx_IRQ_EXT5;
+        mdata->irq[1] = MPC85xx_IRQ_EXT5;
+        mdata->irq[2] = -1;
+        mdata->irq[3] = -1;
+        mdata->irq[31] = -1;
+        mdata->paddr += binfo->bi_immr_base;
+
         /* setup the board related information for the enet controllers */
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 0;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_0;
                 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 1;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_1;
                 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_eTSEC1);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 0;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_0;
                 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_eTSEC2);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 1;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_1;
                 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
         }
 
diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c
index c76760a781c1..b4ee1707a836 100644
--- a/arch/ppc/platforms/85xx/sbc8560.c
+++ b/arch/ppc/platforms/85xx/sbc8560.c
@@ -91,6 +91,9 @@ sbc8560_early_serial_map(void)
 }
 #endif
 
+static const char *GFAR_PHY_25 = "phy0:25";
+static const char *GFAR_PHY_26 = "phy0:26";
+
 /* ************************************************************************
  *
  * Setup the architecture
@@ -102,6 +105,7 @@ sbc8560_setup_arch(void)
         bd_t *binfo = (bd_t *) __res;
         unsigned int freq;
         struct gianfar_platform_data *pdata;
+        struct gianfar_mdio_data *mdata;
 
         /* get the core frequency */
         freq = binfo->bi_intfreq;
@@ -126,24 +130,26 @@ sbc8560_setup_arch(void)
         invalidate_tlbcam_entry(num_tlbcam_entries - 1);
 #endif
 
+        /* setup the board related info for the MDIO bus */
+        mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
+
+        mdata->irq[25] = MPC85xx_IRQ_EXT6;
+        mdata->irq[26] = MPC85xx_IRQ_EXT7;
+        mdata->irq[31] = -1;
+        mdata->paddr += binfo->bi_immr_base;
+
         /* setup the board related information for the enet controllers */
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT6;
-                pdata->phyid = 25;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_25;
                 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
         if (pdata) {
                 pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR;
-                pdata->interruptPHY = MPC85xx_IRQ_EXT7;
-                pdata->phyid = 26;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_26;
                 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
         }
 
diff --git a/arch/ppc/platforms/85xx/stx_gp3.c b/arch/ppc/platforms/85xx/stx_gp3.c
index 20940f4044f4..1e1b85f8193a 100644
--- a/arch/ppc/platforms/85xx/stx_gp3.c
+++ b/arch/ppc/platforms/85xx/stx_gp3.c
@@ -91,6 +91,9 @@ static u8 gp3_openpic_initsenses[] __initdata = {
         0x0,                            /* External 11: */
 };
 
+static const char *GFAR_PHY_2 = "phy0:2";
+static const char *GFAR_PHY_4 = "phy0:4";
+
 /*
  * Setup the architecture
  */
@@ -100,6 +103,7 @@ gp3_setup_arch(void)
         bd_t *binfo = (bd_t *) __res;
         unsigned int freq;
         struct gianfar_platform_data *pdata;
+        struct gianfar_mdio_data *mdata;
 
         cpm2_reset();
 
@@ -118,23 +122,26 @@ gp3_setup_arch(void)
         mpc85xx_setup_hose();
 #endif
 
+        /* setup the board related info for the MDIO bus */
+        mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
+
+        mdata->irq[2] = MPC85xx_IRQ_EXT5;
+        mdata->irq[4] = MPC85xx_IRQ_EXT5;
+        mdata->irq[31] = -1;
+        mdata->paddr += binfo->bi_immr_base;
+
         /* setup the board related information for the enet controllers */
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
         if (pdata) {
         /*      pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; */
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 2;
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_2;
                 memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
         }
 
         pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
         if (pdata) {
         /*      pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; */
-                pdata->interruptPHY = MPC85xx_IRQ_EXT5;
-                pdata->phyid = 4;
-                /* fixup phy address */
-                pdata->phy_reg_addr += binfo->bi_immr_base;
+                pdata->bus_id = GFAR_PHY_4;
                 memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
         }
 
diff --git a/arch/ppc/platforms/85xx/stx_gp3.h b/arch/ppc/platforms/85xx/stx_gp3.h
index 7bcc6c35a417..95fdf4b0680b 100644
--- a/arch/ppc/platforms/85xx/stx_gp3.h
+++ b/arch/ppc/platforms/85xx/stx_gp3.h
@@ -21,7 +21,6 @@
 
 #include <linux/config.h>
 #include <linux/init.h>
-#include <linux/seq_file.h>
 #include <asm/ppcboot.h>
 
 #define BOARD_CCSRBAR           ((uint)0xe0000000)
diff --git a/arch/ppc/platforms/Makefile b/arch/ppc/platforms/Makefile
index ff7452e5d8e5..7c5cdabf6f3c 100644
--- a/arch/ppc/platforms/Makefile
+++ b/arch/ppc/platforms/Makefile
@@ -14,6 +14,9 @@ obj-$(CONFIG_PPC_PMAC)		+= pmac_pic.o pmac_setup.o pmac_time.o \
                                         pmac_low_i2c.o pmac_cache.o
 obj-$(CONFIG_PPC_CHRP)          += chrp_setup.o chrp_time.o chrp_pci.o \
                                         chrp_pegasos_eth.o
+ifeq ($(CONFIG_PPC_CHRP),y)
+obj-$(CONFIG_NVRAM)             += chrp_nvram.o
+endif
 obj-$(CONFIG_PPC_PREP)          += prep_pci.o prep_setup.o
 ifeq ($(CONFIG_PPC_PMAC),y)
 obj-$(CONFIG_NVRAM)             += pmac_nvram.o
diff --git a/arch/ppc/platforms/chestnut.c b/arch/ppc/platforms/chestnut.c
index df6ff98c023a..48a4a510d598 100644
--- a/arch/ppc/platforms/chestnut.c
+++ b/arch/ppc/platforms/chestnut.c
@@ -541,7 +541,6 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 
         ppc_md.setup_arch = chestnut_setup_arch;
         ppc_md.show_cpuinfo = chestnut_show_cpuinfo;
-        ppc_md.irq_canonicalize = NULL;
         ppc_md.init_IRQ = mv64360_init_irq;
         ppc_md.get_irq = mv64360_get_irq;
         ppc_md.init = NULL;
diff --git a/arch/ppc/platforms/chrp_nvram.c b/arch/ppc/platforms/chrp_nvram.c
new file mode 100644
index 000000000000..465ba9b090ef
--- /dev/null
+++ b/arch/ppc/platforms/chrp_nvram.c
@@ -0,0 +1,83 @@
+/*
+ *  c 2001 PPC 64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ * /dev/nvram driver for PPC
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+
+static unsigned int nvram_size;
+static unsigned char nvram_buf[4];
+static DEFINE_SPINLOCK(nvram_lock);
+
+static unsigned char chrp_nvram_read(int addr)
+{
+        unsigned long done, flags;
+        unsigned char ret;
+
+        if (addr >= nvram_size) {
+                printk(KERN_DEBUG "%s: read addr %d > nvram_size %u\n",
+                       current->comm, addr, nvram_size);
+                return 0xff;
+        }
+        spin_lock_irqsave(&nvram_lock, flags);
+        if ((call_rtas("nvram-fetch", 3, 2, &done, addr, __pa(nvram_buf), 1) != 0) || 1 != done)
+                ret = 0xff;
+        else
+                ret = nvram_buf[0];
+        spin_unlock_irqrestore(&nvram_lock, flags);
+
+        return ret;
+}
+
+static void chrp_nvram_write(int addr, unsigned char val)
+{
+        unsigned long done, flags;
+
+        if (addr >= nvram_size) {
+                printk(KERN_DEBUG "%s: write addr %d > nvram_size %u\n",
+                       current->comm, addr, nvram_size);
+                return;
+        }
+        spin_lock_irqsave(&nvram_lock, flags);
+        nvram_buf[0] = val;
+        if ((call_rtas("nvram-store", 3, 2, &done, addr, __pa(nvram_buf), 1) != 0) || 1 != done)
+                printk(KERN_DEBUG "rtas IO error storing 0x%02x at %d", val, addr);
+        spin_unlock_irqrestore(&nvram_lock, flags);
+}
+
+void __init chrp_nvram_init(void)
+{
+        struct device_node *nvram;
+        unsigned int *nbytes_p, proplen;
+
+        nvram = of_find_node_by_type(NULL, "nvram");
+        if (nvram == NULL)
+                return;
+
+        nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+        if (nbytes_p == NULL || proplen != sizeof(unsigned int))
+                return;
+
+        nvram_size = *nbytes_p;
+
+        printk(KERN_INFO "CHRP nvram contains %u bytes\n", nvram_size);
+        of_node_put(nvram);
+
+        ppc_md.nvram_read_val = chrp_nvram_read;
+        ppc_md.nvram_write_val = chrp_nvram_write;
+
+        return;
+}
diff --git a/arch/ppc/platforms/chrp_pci.c b/arch/ppc/platforms/chrp_pci.c
index 7d3fbb5c5db2..bd047aac01b1 100644
--- a/arch/ppc/platforms/chrp_pci.c
+++ b/arch/ppc/platforms/chrp_pci.c
@@ -29,7 +29,7 @@ void __iomem *gg2_pci_config_base;
  * limit the bus number to 3 bits
  */
 
-int __chrp gg2_read_config(struct pci_bus *bus, unsigned int devfn, int off,
+int gg2_read_config(struct pci_bus *bus, unsigned int devfn, int off,
                            int len, u32 *val)
 {
         volatile void __iomem *cfg_data;
@@ -56,7 +56,7 @@ int __chrp gg2_read_config(struct pci_bus *bus, unsigned int devfn, int off,
         return PCIBIOS_SUCCESSFUL;
 }
 
-int __chrp gg2_write_config(struct pci_bus *bus, unsigned int devfn, int off,
+int gg2_write_config(struct pci_bus *bus, unsigned int devfn, int off,
                             int len, u32 val)
 {
         volatile void __iomem *cfg_data;
@@ -92,7 +92,7 @@ static struct pci_ops gg2_pci_ops =
 /*
  * Access functions for PCI config space using RTAS calls.
  */
-int __chrp
+int
 rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
                  int len, u32 *val)
 {
@@ -108,7 +108,7 @@ rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
         return rval? PCIBIOS_DEVICE_NOT_FOUND: PCIBIOS_SUCCESSFUL;
 }
 
-int __chrp
+int
 rtas_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
                   int len, u32 val)
 {
@@ -203,7 +203,7 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d
                 printk ("RTAS supporting Pegasos OF not found, please upgrade"
                         " your firmware\n");
         }
-        pci_assign_all_busses = 1;
+        pci_assign_all_buses = 1;
 }
 
 void __init
diff --git a/arch/ppc/platforms/chrp_pegasos_eth.c b/arch/ppc/platforms/chrp_pegasos_eth.c
index cad5bfa153b2..a9052305c35d 100644
--- a/arch/ppc/platforms/chrp_pegasos_eth.c
+++ b/arch/ppc/platforms/chrp_pegasos_eth.c
@@ -17,7 +17,20 @@
 #include <linux/mv643xx.h>
 #include <linux/pci.h>
 
-/* Pegasos 2 specific Marvell MV 64361 gigabit ethernet port setup */
+#define PEGASOS2_MARVELL_REGBASE                (0xf1000000)
+#define PEGASOS2_MARVELL_REGSIZE                (0x00004000)
+#define PEGASOS2_SRAM_BASE                      (0xf2000000)
+#define PEGASOS2_SRAM_SIZE                      (256*1024)
+
+#define PEGASOS2_SRAM_BASE_ETH0                 (PEGASOS2_SRAM_BASE)
+#define PEGASOS2_SRAM_BASE_ETH1                 (PEGASOS2_SRAM_BASE_ETH0 + (PEGASOS2_SRAM_SIZE / 2) )
+
+
+#define PEGASOS2_SRAM_RXRING_SIZE               (PEGASOS2_SRAM_SIZE/4)
+#define PEGASOS2_SRAM_TXRING_SIZE               (PEGASOS2_SRAM_SIZE/4)
+
+#undef BE_VERBOSE
+
 static struct resource mv643xx_eth_shared_resources[] = {
         [0] = {
                 .name   = "ethernet shared base",
@@ -44,7 +57,16 @@ static struct resource mv643xx_eth0_resources[] = {
         },
 };
 
-static struct mv643xx_eth_platform_data eth0_pd;
+
+static struct mv643xx_eth_platform_data eth0_pd = {
+        .tx_sram_addr = PEGASOS2_SRAM_BASE_ETH0,
+        .tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
+        .tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
+
+        .rx_sram_addr = PEGASOS2_SRAM_BASE_ETH0 + PEGASOS2_SRAM_TXRING_SIZE,
+        .rx_sram_size = PEGASOS2_SRAM_RXRING_SIZE,
+        .rx_queue_size = PEGASOS2_SRAM_RXRING_SIZE/16,
+};
 
 static struct platform_device eth0_device = {
         .name           = MV643XX_ETH_NAME,
@@ -65,7 +87,15 @@ static struct resource mv643xx_eth1_resources[] = {
         },
 };
 
-static struct mv643xx_eth_platform_data eth1_pd;
+static struct mv643xx_eth_platform_data eth1_pd = {
+        .tx_sram_addr = PEGASOS2_SRAM_BASE_ETH1,
+        .tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
+        .tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
+
+        .rx_sram_addr = PEGASOS2_SRAM_BASE_ETH1 + PEGASOS2_SRAM_TXRING_SIZE,
+        .rx_sram_size = PEGASOS2_SRAM_RXRING_SIZE,
+        .rx_queue_size = PEGASOS2_SRAM_RXRING_SIZE/16,
+};
 
 static struct platform_device eth1_device = {
         .name           = MV643XX_ETH_NAME,
@@ -83,9 +113,62 @@ static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
         &eth1_device,
 };
 
+/***********/
+/***********/
+#define MV_READ(offset,val)     { val = readl(mv643xx_reg_base + offset); }
+#define MV_WRITE(offset,data) writel(data, mv643xx_reg_base + offset)
+
+static void __iomem *mv643xx_reg_base;
+
+static int Enable_SRAM(void)
+{
+        u32 ALong;
+
+        if (mv643xx_reg_base == NULL)
+                mv643xx_reg_base = ioremap(PEGASOS2_MARVELL_REGBASE,
+                                        PEGASOS2_MARVELL_REGSIZE);
+
+        if (mv643xx_reg_base == NULL)
+                return -ENOMEM;
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: register remapped from %p to %p\n",
+                (void *)PEGASOS2_MARVELL_REGBASE, (void *)mv643xx_reg_base);
+#endif
+
+        MV_WRITE(MV64340_SRAM_CONFIG, 0);
 
-int
-mv643xx_eth_add_pds(void)
+        MV_WRITE(MV64340_INTEGRATED_SRAM_BASE_ADDR, PEGASOS2_SRAM_BASE >> 16);
+
+        MV_READ(MV64340_BASE_ADDR_ENABLE, ALong);
+        ALong &= ~(1 << 19);
+        MV_WRITE(MV64340_BASE_ADDR_ENABLE, ALong);
+
+        ALong = 0x02;
+        ALong |= PEGASOS2_SRAM_BASE & 0xffff0000;
+        MV_WRITE(MV643XX_ETH_BAR_4, ALong);
+
+        MV_WRITE(MV643XX_ETH_SIZE_REG_4, (PEGASOS2_SRAM_SIZE-1) & 0xffff0000);
+
+        MV_READ(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
+        ALong &= ~(1 << 4);
+        MV_WRITE(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: register unmapped\n");
+        printk("Pegasos II/Marvell MV64361: SRAM at %p, size=%x\n", (void*) PEGASOS2_SRAM_BASE, PEGASOS2_SRAM_SIZE);
+#endif
+
+        iounmap(mv643xx_reg_base);
+        mv643xx_reg_base = NULL;
+
+        return 1;
+}
+
+
+/***********/
+/***********/
+int mv643xx_eth_add_pds(void)
 {
         int ret = 0;
         static struct pci_device_id pci_marvell_mv64360[] = {
@@ -93,9 +176,38 @@ mv643xx_eth_add_pds(void)
                 { }
         };
 
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: init\n");
+#endif
+
         if (pci_dev_present(pci_marvell_mv64360)) {
-                ret = platform_add_devices(mv643xx_eth_pd_devs, ARRAY_SIZE(mv643xx_eth_pd_devs));
+                ret = platform_add_devices(mv643xx_eth_pd_devs,
+                                ARRAY_SIZE(mv643xx_eth_pd_devs));
+
+                if ( Enable_SRAM() < 0)
+                {
+                        eth0_pd.tx_sram_addr = 0;
+                        eth0_pd.tx_sram_size = 0;
+                        eth0_pd.rx_sram_addr = 0;
+                        eth0_pd.rx_sram_size = 0;
+
+                        eth1_pd.tx_sram_addr = 0;
+                        eth1_pd.tx_sram_size = 0;
+                        eth1_pd.rx_sram_addr = 0;
+                        eth1_pd.rx_sram_size = 0;
+
+#ifdef BE_VERBOSE
+                        printk("Pegasos II/Marvell MV64361: Can't enable the "
+                                "SRAM\n");
+#endif
+                }
         }
+
+#ifdef BE_VERBOSE
+        printk("Pegasos II/Marvell MV64361: init is over\n");
+#endif
+
         return ret;
 }
+
 device_initcall(mv643xx_eth_add_pds);
diff --git a/arch/ppc/platforms/chrp_setup.c b/arch/ppc/platforms/chrp_setup.c
index 66346f0de7ec..f1b70ab3c6fd 100644
--- a/arch/ppc/platforms/chrp_setup.c
+++ b/arch/ppc/platforms/chrp_setup.c
@@ -104,7 +104,7 @@ static const char *gg2_cachemodes[4] = {
         "Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
 };
 
-int __chrp
+int
 chrp_show_cpuinfo(struct seq_file *m)
 {
         int i, sdramen;
@@ -302,7 +302,7 @@ void __init chrp_setup_arch(void)
         pci_create_OF_bus_map();
 }
 
-void __chrp
+void
 chrp_event_scan(void)
 {
         unsigned char log[1024];
@@ -313,7 +313,7 @@ chrp_event_scan(void)
         ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
 }
 
-void __chrp
+void
 chrp_restart(char *cmd)
 {
         printk("RTAS system-reboot returned %d\n",
@@ -321,7 +321,7 @@ chrp_restart(char *cmd)
         for (;;);
 }
 
-void __chrp
+void
 chrp_power_off(void)
 {
         /* allow power on only with power button press */
@@ -330,20 +330,12 @@ chrp_power_off(void)
         for (;;);
 }
 
-void __chrp
+void
 chrp_halt(void)
 {
         chrp_power_off();
 }
 
-u_int __chrp
-chrp_irq_canonicalize(u_int irq)
-{
-        if (irq == 2)
-                return 9;
-        return irq;
-}
-
 /*
  * Finds the open-pic node and sets OpenPIC_Addr based on its reg property.
  * Then checks if it has an interrupt-ranges property.  If it does then
@@ -444,9 +436,7 @@ void __init chrp_init_IRQ(void)
                                        i8259_irq);
 
         }
-        for (i = 0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-        i8259_init(chrp_int_ack);
+        i8259_init(chrp_int_ack, 0);
 
 #if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON)
         /* see if there is a keyboard in the device tree
@@ -464,8 +454,7 @@ void __init
 chrp_init2(void)
 {
 #ifdef CONFIG_NVRAM
-// XX replace this in a more saner way
-//      pmac_nvram_init();
+        chrp_nvram_init();
 #endif
 
         request_region(0x20,0x20,"pic1");
@@ -499,6 +488,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
         DMA_MODE_READ = 0x44;
         DMA_MODE_WRITE = 0x48;
         isa_io_base = CHRP_ISA_IO_BASE;         /* default value */
+        ppc_do_canonicalize_irqs = 1;
 
         if (root)
                 machine = get_property(root, "model", NULL);
@@ -517,7 +507,6 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_md.show_percpuinfo = of_show_percpuinfo;
         ppc_md.show_cpuinfo   = chrp_show_cpuinfo;
 
-        ppc_md.irq_canonicalize = chrp_irq_canonicalize;
         ppc_md.init_IRQ       = chrp_init_IRQ;
         if (_chrp_type == _CHRP_Pegasos)
                 ppc_md.get_irq        = i8259_irq;
@@ -561,7 +550,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif
 
 #ifdef CONFIG_SMP
-        ppc_md.smp_ops = &chrp_smp_ops;
+        smp_ops = &chrp_smp_ops;
 #endif /* CONFIG_SMP */
 
         /*
@@ -571,7 +560,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
         if (ppc_md.progress) ppc_md.progress("Linux/PPC "UTS_RELEASE"\n", 0x0);
 }
 
-void __chrp
+void
 rtas_display_progress(char *s, unsigned short hex)
 {
         int width;
@@ -598,7 +587,7 @@ rtas_display_progress(char *s, unsigned short hex)
         call_rtas( "display-character", 1, 1, NULL, ' ' );
 }
 
-void __chrp
+void
 rtas_indicator_progress(char *s, unsigned short hex)
 {
         call_rtas("set-indicator", 3, 1, NULL, 6, 0, hex);
diff --git a/arch/ppc/platforms/chrp_smp.c b/arch/ppc/platforms/chrp_smp.c
index 0ea1f7d9e46a..97e539557ecb 100644
--- a/arch/ppc/platforms/chrp_smp.c
+++ b/arch/ppc/platforms/chrp_smp.c
@@ -31,6 +31,7 @@
 #include <asm/residual.h>
 #include <asm/time.h>
 #include <asm/open_pic.h>
+#include <asm/machdep.h>
 
 extern unsigned long smp_chrp_cpu_nr;
 
@@ -88,7 +89,7 @@ smp_chrp_take_timebase(void)
 }
 
 /* CHRP with openpic */
-struct smp_ops_t chrp_smp_ops __chrpdata = {
+struct smp_ops_t chrp_smp_ops = {
         .message_pass = smp_openpic_message_pass,
         .probe = smp_chrp_probe,
         .kick_cpu = smp_chrp_kick_cpu,
diff --git a/arch/ppc/platforms/chrp_time.c b/arch/ppc/platforms/chrp_time.c
index 6037ce7796f5..29d074c305f0 100644
--- a/arch/ppc/platforms/chrp_time.c
+++ b/arch/ppc/platforms/chrp_time.c
@@ -52,7 +52,7 @@ long __init chrp_time_init(void)
         return 0;
 }
 
-int __chrp chrp_cmos_clock_read(int addr)
+int chrp_cmos_clock_read(int addr)
 {
         if (nvram_as1 != 0)
                 outb(addr>>8, nvram_as1);
@@ -60,7 +60,7 @@ int __chrp chrp_cmos_clock_read(int addr)
         return (inb(nvram_data));
 }
 
-void __chrp chrp_cmos_clock_write(unsigned long val, int addr)
+void chrp_cmos_clock_write(unsigned long val, int addr)
 {
         if (nvram_as1 != 0)
                 outb(addr>>8, nvram_as1);
@@ -72,7 +72,7 @@ void __chrp chrp_cmos_clock_write(unsigned long val, int addr)
 /*
  * Set the hardware clock. -- Cort
  */
-int __chrp chrp_set_rtc_time(unsigned long nowtime)
+int chrp_set_rtc_time(unsigned long nowtime)
 {
         unsigned char save_control, save_freq_select;
         struct rtc_time tm;
@@ -118,7 +118,7 @@ int __chrp chrp_set_rtc_time(unsigned long nowtime)
         return 0;
 }
 
-unsigned long __chrp chrp_get_rtc_time(void)
+unsigned long chrp_get_rtc_time(void)
 {
         unsigned int year, mon, day, hour, min, sec;
         int uip, i;
diff --git a/arch/ppc/platforms/ev64360.c b/arch/ppc/platforms/ev64360.c
index 9811a8a52c25..53388a1c334f 100644
--- a/arch/ppc/platforms/ev64360.c
+++ b/arch/ppc/platforms/ev64360.c
@@ -35,6 +35,7 @@
 #include <asm/bootinfo.h>
 #include <asm/ppcboot.h>
 #include <asm/mv64x60.h>
+#include <asm/machdep.h>
 #include <platforms/ev64360.h>
 
 #define BOARD_VENDOR    "Marvell"
diff --git a/arch/ppc/platforms/fads.h b/arch/ppc/platforms/fads.h
index b60c56450b67..a48fb8d723e4 100644
--- a/arch/ppc/platforms/fads.h
+++ b/arch/ppc/platforms/fads.h
@@ -25,6 +25,8 @@
 
 #if defined(CONFIG_MPC86XADS)
 
+#define BOARD_CHIP_NAME "MPC86X"
+
 /* U-Boot maps BCSR to 0xff080000 */
 #define BCSR_ADDR               ((uint)0xff080000)
 
diff --git a/arch/ppc/platforms/gemini_setup.c b/arch/ppc/platforms/gemini_setup.c
index 3a5ff9fb71d6..729897c59033 100644
--- a/arch/ppc/platforms/gemini_setup.c
+++ b/arch/ppc/platforms/gemini_setup.c
@@ -35,6 +35,7 @@
 #include <asm/time.h>
 #include <asm/open_pic.h>
 #include <asm/bootinfo.h>
+#include <asm/machdep.h>
 
 void gemini_find_bridges(void);
 static int gemini_get_clock_speed(void);
@@ -555,7 +556,6 @@ void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 
         ppc_md.setup_arch = gemini_setup_arch;
         ppc_md.show_cpuinfo = gemini_show_cpuinfo;
-        ppc_md.irq_canonicalize = NULL;
         ppc_md.init_IRQ = gemini_init_IRQ;
         ppc_md.get_irq = openpic_get_irq;
         ppc_md.init = NULL;
@@ -575,6 +575,6 @@ void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_md.pcibios_fixup_bus = gemini_pcibios_fixup;
 
 #ifdef CONFIG_SMP
-        ppc_md.smp_ops = &gemini_smp_ops;
+        smp_ops = &gemini_smp_ops;
 #endif /* CONFIG_SMP */
 }
diff --git a/arch/ppc/platforms/hdpu.c b/arch/ppc/platforms/hdpu.c
index ff3796860123..b6a66d5e9d83 100644
--- a/arch/ppc/platforms/hdpu.c
+++ b/arch/ppc/platforms/hdpu.c
@@ -609,11 +609,6 @@ static void parse_bootinfo(unsigned long r3,
 }
 
 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
-static int hdpu_ide_check_region(ide_ioreg_t from, unsigned int extent)
-{
-        return check_region(from, extent);
-}
-
 static void
 hdpu_ide_request_region(ide_ioreg_t from, unsigned int extent, const char *name)
 {
@@ -753,7 +748,7 @@ static int smp_hdpu_probe(void)
 }
 
 static void
-smp_hdpu_message_pass(int target, int msg, unsigned long data, int wait)
+smp_hdpu_message_pass(int target, int msg)
 {
         if (msg > 0x3) {
                 printk("SMP %d: smp_message_pass: unknown msg %d\n",
@@ -949,7 +944,7 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif                          /* CONFIG_SERIAL_TEXT_DEBUG */
 
 #ifdef CONFIG_SMP
-        ppc_md.smp_ops = &hdpu_smp_ops;
+        smp_ops = &hdpu_smp_ops;
 #endif                          /* CONFIG_SMP */
 
 #if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH)
diff --git a/arch/ppc/platforms/katana.c b/arch/ppc/platforms/katana.c
index 2b53afae0e9c..a301c5ac58dd 100644
--- a/arch/ppc/platforms/katana.c
+++ b/arch/ppc/platforms/katana.c
@@ -42,6 +42,7 @@
 #include <asm/ppcboot.h>
 #include <asm/mv64x60.h>
 #include <platforms/katana.h>
+#include <asm/machdep.h>
 
 static struct mv64x60_handle    bh;
 static katana_id_t              katana_id;
@@ -520,7 +521,7 @@ katana_fixup_resources(struct pci_dev *dev)
 {
         u16     v16;
 
-        pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, L1_CACHE_LINE_SIZE>>2);
+        pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES>>2);
 
         pci_read_config_word(dev, PCI_COMMAND, &v16);
         v16 |= PCI_COMMAND_INVALIDATE | PCI_COMMAND_FAST_BACK;
diff --git a/arch/ppc/platforms/lite5200.c b/arch/ppc/platforms/lite5200.c
index b604cf8b3cae..d44cc991179f 100644
--- a/arch/ppc/platforms/lite5200.c
+++ b/arch/ppc/platforms/lite5200.c
@@ -35,6 +35,7 @@
 #include <asm/io.h>
 #include <asm/mpc52xx.h>
 #include <asm/ppc_sys.h>
+#include <asm/machdep.h>
 
 #include <syslib/mpc52xx_pci.h>
 
diff --git a/arch/ppc/platforms/lopec.c b/arch/ppc/platforms/lopec.c
index a5569525e0af..06d247c23b82 100644
--- a/arch/ppc/platforms/lopec.c
+++ b/arch/ppc/platforms/lopec.c
@@ -144,15 +144,6 @@ lopec_show_cpuinfo(struct seq_file *m)
         return 0;
 }
 
-static u32
-lopec_irq_canonicalize(u32 irq)
-{
-        if (irq == 2)
-                return 9;
-        else
-                return irq;
-}
-
 static void
 lopec_restart(char *cmd)
 {
@@ -276,15 +267,11 @@ lopec_init_IRQ(void)
         openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
                         &i8259_irq);
 
-        /* Map i8259 interrupts */
-        for(i = 0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-
         /*
          * The EPIC allows for a read in the range of 0xFEF00000 ->
          * 0xFEFFFFFF to generate a PCI interrupt-acknowledge transaction.
          */
-        i8259_init(0xfef00000);
+        i8259_init(0xfef00000, 0);
 }
 
 static int __init
@@ -379,10 +366,10 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ISA_DMA_THRESHOLD = 0x00ffffff;
         DMA_MODE_READ = 0x44;
         DMA_MODE_WRITE = 0x48;
+        ppc_do_canonicalize_irqs = 1;
 
         ppc_md.setup_arch = lopec_setup_arch;
         ppc_md.show_cpuinfo = lopec_show_cpuinfo;
-        ppc_md.irq_canonicalize = lopec_irq_canonicalize;
         ppc_md.init_IRQ = lopec_init_IRQ;
         ppc_md.get_irq = openpic_get_irq;
 
diff --git a/arch/ppc/platforms/mpc885ads.h b/arch/ppc/platforms/mpc885ads.h
index eb386635b0fd..a80b7d116b49 100644
--- a/arch/ppc/platforms/mpc885ads.h
+++ b/arch/ppc/platforms/mpc885ads.h
@@ -88,5 +88,7 @@
 #define SICR_ENET_MASK  ((uint)0x00ff0000)
 #define SICR_ENET_CLKRT ((uint)0x002c0000)
 
+#define BOARD_CHIP_NAME "MPC885"
+
 #endif /* __ASM_MPC885ADS_H__ */
 #endif /* __KERNEL__ */
diff --git a/arch/ppc/platforms/mvme5100.c b/arch/ppc/platforms/mvme5100.c
index ce2ce88c8033..108eb182dddc 100644
--- a/arch/ppc/platforms/mvme5100.c
+++ b/arch/ppc/platforms/mvme5100.c
@@ -223,11 +223,7 @@ mvme5100_init_IRQ(void)
         openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
                         &i8259_irq);
 
-        /* Map i8259 interrupts. */
-        for (i = 0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-
-        i8259_init(0);
+        i8259_init(0, 0);
 #else
         openpic_init(0);
 #endif
diff --git a/arch/ppc/platforms/pal4_setup.c b/arch/ppc/platforms/pal4_setup.c
index 12446b93e38c..f93a3f871932 100644
--- a/arch/ppc/platforms/pal4_setup.c
+++ b/arch/ppc/platforms/pal4_setup.c
@@ -28,6 +28,7 @@
 #include <asm/io.h>
 #include <asm/todc.h>
 #include <asm/bootinfo.h>
+#include <asm/machdep.h>
 
 #include <syslib/cpc700.h>
 
diff --git a/arch/ppc/platforms/pmac_backlight.c b/arch/ppc/platforms/pmac_backlight.c
index ed2b1cebc19a..8be2f7d071f0 100644
--- a/arch/ppc/platforms/pmac_backlight.c
+++ b/arch/ppc/platforms/pmac_backlight.c
@@ -37,7 +37,7 @@ static int backlight_req_enable = -1;
 static void backlight_callback(void *);
 static DECLARE_WORK(backlight_work, backlight_callback, NULL);
 
-void __pmac register_backlight_controller(struct backlight_controller *ctrler,
+void register_backlight_controller(struct backlight_controller *ctrler,
                                           void *data, char *type)
 {
         struct device_node* bk_node;
@@ -99,7 +99,7 @@ void __pmac register_backlight_controller(struct backlight_controller *ctrler,
 }
 EXPORT_SYMBOL(register_backlight_controller);
 
-void __pmac unregister_backlight_controller(struct backlight_controller
+void unregister_backlight_controller(struct backlight_controller
                                             *ctrler, void *data)
 {
         /* We keep the current backlight level (for now) */
@@ -108,7 +108,7 @@ void __pmac unregister_backlight_controller(struct backlight_controller
 }
 EXPORT_SYMBOL(unregister_backlight_controller);
 
-static int __pmac __set_backlight_enable(int enable)
+static int __set_backlight_enable(int enable)
 {
         int rc;
 
@@ -122,7 +122,7 @@ static int __pmac __set_backlight_enable(int enable)
         release_console_sem();
         return rc;
 }
-int __pmac set_backlight_enable(int enable)
+int set_backlight_enable(int enable)
 {
         if (!backlighter)
                 return -ENODEV;
@@ -133,7 +133,7 @@ int __pmac set_backlight_enable(int enable)
 
 EXPORT_SYMBOL(set_backlight_enable);
 
-int __pmac get_backlight_enable(void)
+int get_backlight_enable(void)
 {
         if (!backlighter)
                 return -ENODEV;
@@ -141,7 +141,7 @@ int __pmac get_backlight_enable(void)
 }
 EXPORT_SYMBOL(get_backlight_enable);
 
-static int __pmac __set_backlight_level(int level)
+static int __set_backlight_level(int level)
 {
         int rc = 0;
 
@@ -165,7 +165,7 @@ static int __pmac __set_backlight_level(int level)
         }
         return rc;
 }
-int __pmac set_backlight_level(int level)
+int set_backlight_level(int level)
 {
         if (!backlighter)
                 return -ENODEV;
@@ -176,7 +176,7 @@ int __pmac set_backlight_level(int level)
 
 EXPORT_SYMBOL(set_backlight_level);
 
-int __pmac get_backlight_level(void)
+int get_backlight_level(void)
 {
         if (!backlighter)
                 return -ENODEV;
diff --git a/arch/ppc/platforms/pmac_cpufreq.c b/arch/ppc/platforms/pmac_cpufreq.c
index d4bc5f67ec53..fba7e4d7c0bf 100644
--- a/arch/ppc/platforms/pmac_cpufreq.c
+++ b/arch/ppc/platforms/pmac_cpufreq.c
@@ -136,7 +136,7 @@ static inline void debug_calc_bogomips(void)
 
 /* Switch CPU speed under 750FX CPU control
  */
-static int __pmac cpu_750fx_cpu_speed(int low_speed)
+static int cpu_750fx_cpu_speed(int low_speed)
 {
         u32 hid2;
 
@@ -172,7 +172,7 @@ static int __pmac cpu_750fx_cpu_speed(int low_speed)
         return 0;
 }
 
-static unsigned int __pmac cpu_750fx_get_cpu_speed(void)
+static unsigned int cpu_750fx_get_cpu_speed(void)
 {
         if (mfspr(SPRN_HID1) & HID1_PS)
                 return low_freq;
@@ -181,7 +181,7 @@ static unsigned int __pmac cpu_750fx_get_cpu_speed(void)
 }
 
 /* Switch CPU speed using DFS */
-static int __pmac dfs_set_cpu_speed(int low_speed)
+static int dfs_set_cpu_speed(int low_speed)
 {
         if (low_speed == 0) {
                 /* ramping up, set voltage first */
@@ -205,7 +205,7 @@ static int __pmac dfs_set_cpu_speed(int low_speed)
         return 0;
 }
 
-static unsigned int __pmac dfs_get_cpu_speed(void)
+static unsigned int dfs_get_cpu_speed(void)
 {
         if (mfspr(SPRN_HID1) & HID1_DFS)
                 return low_freq;
@@ -216,7 +216,7 @@ static unsigned int __pmac dfs_get_cpu_speed(void)
 
 /* Switch CPU speed using slewing GPIOs
  */
-static int __pmac gpios_set_cpu_speed(int low_speed)
+static int gpios_set_cpu_speed(int low_speed)
 {
         int gpio, timeout = 0;
 
@@ -258,7 +258,7 @@ static int __pmac gpios_set_cpu_speed(int low_speed)
 
 /* Switch CPU speed under PMU control
  */
-static int __pmac pmu_set_cpu_speed(int low_speed)
+static int pmu_set_cpu_speed(int low_speed)
 {
         struct adb_request req;
         unsigned long save_l2cr;
@@ -354,7 +354,7 @@ static int __pmac pmu_set_cpu_speed(int low_speed)
         return 0;
 }
 
-static int __pmac do_set_cpu_speed(int speed_mode, int notify)
+static int do_set_cpu_speed(int speed_mode, int notify)
 {
         struct cpufreq_freqs freqs;
         unsigned long l3cr;
@@ -391,17 +391,17 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify)
         return 0;
 }
 
-static unsigned int __pmac pmac_cpufreq_get_speed(unsigned int cpu)
+static unsigned int pmac_cpufreq_get_speed(unsigned int cpu)
 {
         return cur_freq;
 }
 
-static int __pmac pmac_cpufreq_verify(struct cpufreq_policy *policy)
+static int pmac_cpufreq_verify(struct cpufreq_policy *policy)
 {
         return cpufreq_frequency_table_verify(policy, pmac_cpu_freqs);
 }
 
-static int __pmac pmac_cpufreq_target(  struct cpufreq_policy *policy,
+static int pmac_cpufreq_target( struct cpufreq_policy *policy,
                                         unsigned int target_freq,
                                         unsigned int relation)
 {
@@ -414,13 +414,13 @@ static int __pmac pmac_cpufreq_target(	struct cpufreq_policy *policy,
         return do_set_cpu_speed(newstate, 1);
 }
 
-unsigned int __pmac pmac_get_one_cpufreq(int i)
+unsigned int pmac_get_one_cpufreq(int i)
 {
         /* Supports only one CPU for now */
         return (i == 0) ? cur_freq : 0;
 }
 
-static int __pmac pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
+static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
         if (policy->cpu != 0)
                 return -ENODEV;
@@ -433,7 +433,7 @@ static int __pmac pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
         return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs);
 }
 
-static u32 __pmac read_gpio(struct device_node *np)
+static u32 read_gpio(struct device_node *np)
 {
         u32 *reg = (u32 *)get_property(np, "reg", NULL);
         u32 offset;
@@ -452,7 +452,7 @@ static u32 __pmac read_gpio(struct device_node *np)
         return offset;
 }
 
-static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, pm_message_t pmsg)
+static int pmac_cpufreq_suspend(struct cpufreq_policy *policy, pm_message_t pmsg)
 {
         /* Ok, this could be made a bit smarter, but let's be robust for now. We
          * always force a speed change to high speed before sleep, to make sure
@@ -468,7 +468,7 @@ static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, pm_message
         return 0;
 }
 
-static int __pmac pmac_cpufreq_resume(struct cpufreq_policy *policy)
+static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
 {
         /* If we resume, first check if we have a get() function */
         if (get_speed_proc)
@@ -501,7 +501,7 @@ static struct cpufreq_driver pmac_cpufreq_driver = {
 };
 
 
-static int __pmac pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
+static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
 {
         struct device_node *volt_gpio_np = of_find_node_by_name(NULL,
                                                                 "voltage-gpio");
@@ -593,7 +593,7 @@ static int __pmac pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
         return 0;
 }
 
-static int __pmac pmac_cpufreq_init_7447A(struct device_node *cpunode)
+static int pmac_cpufreq_init_7447A(struct device_node *cpunode)
 {
         struct device_node *volt_gpio_np;
 
@@ -620,7 +620,7 @@ static int __pmac pmac_cpufreq_init_7447A(struct device_node *cpunode)
         return 0;
 }
 
-static int __pmac pmac_cpufreq_init_750FX(struct device_node *cpunode)
+static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
 {
         struct device_node *volt_gpio_np;
         u32 pvr, *value;
diff --git a/arch/ppc/platforms/pmac_feature.c b/arch/ppc/platforms/pmac_feature.c
index dd6d45ae0501..58884a63ebdb 100644
--- a/arch/ppc/platforms/pmac_feature.c
+++ b/arch/ppc/platforms/pmac_feature.c
@@ -63,7 +63,7 @@ extern struct device_node *k2_skiplist[2];
  * We use a single global lock to protect accesses. Each driver has
  * to take care of its own locking
  */
-static DEFINE_SPINLOCK(feature_lock  __pmacdata);
+static DEFINE_SPINLOCK(feature_lock);
 
 #define LOCK(flags)     spin_lock_irqsave(&feature_lock, flags);
 #define UNLOCK(flags)   spin_unlock_irqrestore(&feature_lock, flags);
@@ -72,9 +72,9 @@ static DEFINE_SPINLOCK(feature_lock  __pmacdata);
 /*
  * Instance of some macio stuffs
  */
-struct macio_chip macio_chips[MAX_MACIO_CHIPS]  __pmacdata;
+struct macio_chip macio_chips[MAX_MACIO_CHIPS];
 
-struct macio_chip* __pmac macio_find(struct device_node* child, int type)
+struct macio_chip* macio_find(struct device_node* child, int type)
 {
         while(child) {
                 int     i;
@@ -89,7 +89,7 @@ struct macio_chip* __pmac macio_find(struct device_node* child, int type)
 }
 EXPORT_SYMBOL_GPL(macio_find);
 
-static const char* macio_names[] __pmacdata =
+static const char* macio_names[] =
 {
         "Unknown",
         "Grand Central",
@@ -116,10 +116,10 @@ static const char* macio_names[] __pmacdata =
 #define UN_BIS(r,v)     (UN_OUT((r), UN_IN(r) | (v)))
 #define UN_BIC(r,v)     (UN_OUT((r), UN_IN(r) & ~(v)))
 
-static struct device_node* uninorth_node __pmacdata;
-static u32 __iomem * uninorth_base __pmacdata;
-static u32 uninorth_rev __pmacdata;
-static int uninorth_u3 __pmacdata;
+static struct device_node* uninorth_node;
+static u32 __iomem * uninorth_base;
+static u32 uninorth_rev;
+static int uninorth_u3;
 static void __iomem *u3_ht;
 
 /*
@@ -142,13 +142,13 @@ struct pmac_mb_def
         struct feature_table_entry*     features;
         unsigned long                   board_flags;
 };
-static struct pmac_mb_def pmac_mb __pmacdata;
+static struct pmac_mb_def pmac_mb;
 
 /*
  * Here are the chip specific feature functions
  */
 
-static inline int __pmac
+static inline int
 simple_feature_tweak(struct device_node* node, int type, int reg, u32 mask, int value)
 {
         struct macio_chip*      macio;
@@ -170,7 +170,7 @@ simple_feature_tweak(struct device_node* node, int type, int reg, u32 mask, int
 
 #ifndef CONFIG_POWER4
 
-static long __pmac
+static long
 ohare_htw_scc_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -263,21 +263,21 @@ ohare_htw_scc_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 ohare_floppy_enable(struct device_node* node, long param, long value)
 {
         return simple_feature_tweak(node, macio_ohare,
                 OHARE_FCR, OH_FLOPPY_ENABLE, value);
 }
 
-static long __pmac
+static long
 ohare_mesh_enable(struct device_node* node, long param, long value)
 {
         return simple_feature_tweak(node, macio_ohare,
                 OHARE_FCR, OH_MESH_ENABLE, value);
 }
 
-static long __pmac
+static long
 ohare_ide_enable(struct device_node* node, long param, long value)
 {
         switch(param) {
@@ -298,7 +298,7 @@ ohare_ide_enable(struct device_node* node, long param, long value)
         }
 }
 
-static long __pmac
+static long
 ohare_ide_reset(struct device_node* node, long param, long value)
 {
         switch(param) {
@@ -313,7 +313,7 @@ ohare_ide_reset(struct device_node* node, long param, long value)
         }
 }
 
-static long __pmac
+static long
 ohare_sleep_state(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio = &macio_chips[0];
@@ -329,7 +329,7 @@ ohare_sleep_state(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 heathrow_modem_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -373,7 +373,7 @@ heathrow_modem_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 heathrow_floppy_enable(struct device_node* node, long param, long value)
 {
         return simple_feature_tweak(node, macio_unknown,
@@ -382,7 +382,7 @@ heathrow_floppy_enable(struct device_node* node, long param, long value)
                 value);
 }
 
-static long __pmac
+static long
 heathrow_mesh_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -411,7 +411,7 @@ heathrow_mesh_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 heathrow_ide_enable(struct device_node* node, long param, long value)
 {
         switch(param) {
@@ -426,7 +426,7 @@ heathrow_ide_enable(struct device_node* node, long param, long value)
         }
 }
 
-static long __pmac
+static long
 heathrow_ide_reset(struct device_node* node, long param, long value)
 {
         switch(param) {
@@ -441,7 +441,7 @@ heathrow_ide_reset(struct device_node* node, long param, long value)
         }
 }
 
-static long __pmac
+static long
 heathrow_bmac_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -470,7 +470,7 @@ heathrow_bmac_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 heathrow_sound_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -501,16 +501,16 @@ heathrow_sound_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static u32 save_fcr[6] __pmacdata;
-static u32 save_mbcr __pmacdata;
-static u32 save_gpio_levels[2] __pmacdata;
-static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT] __pmacdata;
-static u8 save_gpio_normal[KEYLARGO_GPIO_CNT] __pmacdata;
-static u32 save_unin_clock_ctl __pmacdata;
-static struct dbdma_regs save_dbdma[13] __pmacdata;
-static struct dbdma_regs save_alt_dbdma[13] __pmacdata;
+static u32 save_fcr[6];
+static u32 save_mbcr;
+static u32 save_gpio_levels[2];
+static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
+static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
+static u32 save_unin_clock_ctl;
+static struct dbdma_regs save_dbdma[13];
+static struct dbdma_regs save_alt_dbdma[13];
 
-static void __pmac
+static void
 dbdma_save(struct macio_chip* macio, struct dbdma_regs* save)
 {
         int i;
@@ -527,7 +527,7 @@ dbdma_save(struct macio_chip* macio, struct dbdma_regs* save)
         }
 }
 
-static void __pmac
+static void
 dbdma_restore(struct macio_chip* macio, struct dbdma_regs* save)
 {
         int i;
@@ -547,7 +547,7 @@ dbdma_restore(struct macio_chip* macio, struct dbdma_regs* save)
         }
 }
 
-static void __pmac
+static void
 heathrow_sleep(struct macio_chip* macio, int secondary)
 {
         if (secondary) {
@@ -580,7 +580,7 @@ heathrow_sleep(struct macio_chip* macio, int secondary)
         (void)MACIO_IN32(HEATHROW_FCR);
 }
 
-static void __pmac
+static void
 heathrow_wakeup(struct macio_chip* macio, int secondary)
 {
         if (secondary) {
@@ -605,7 +605,7 @@ heathrow_wakeup(struct macio_chip* macio, int secondary)
         }
 }
 
-static long __pmac
+static long
 heathrow_sleep_state(struct device_node* node, long param, long value)
 {
         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
@@ -622,7 +622,7 @@ heathrow_sleep_state(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_scc_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -723,7 +723,7 @@ core99_scc_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_modem_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -775,7 +775,7 @@ core99_modem_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 pangea_modem_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -830,7 +830,7 @@ pangea_modem_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_ata100_enable(struct device_node* node, long value)
 {
         unsigned long flags;
@@ -860,7 +860,7 @@ core99_ata100_enable(struct device_node* node, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_ide_enable(struct device_node* node, long param, long value)
 {
         /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
@@ -883,7 +883,7 @@ core99_ide_enable(struct device_node* node, long param, long value)
         }
 }
 
-static long __pmac
+static long
 core99_ide_reset(struct device_node* node, long param, long value)
 {
         switch(param) {
@@ -901,7 +901,7 @@ core99_ide_reset(struct device_node* node, long param, long value)
         }
 }
 
-static long __pmac
+static long
 core99_gmac_enable(struct device_node* node, long param, long value)
 {
         unsigned long flags;
@@ -918,7 +918,7 @@ core99_gmac_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_gmac_phy_reset(struct device_node* node, long param, long value)
 {
         unsigned long flags;
@@ -943,7 +943,7 @@ core99_gmac_phy_reset(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_sound_chip_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -973,7 +973,7 @@ core99_sound_chip_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_airport_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip*      macio;
@@ -1060,7 +1060,7 @@ core99_airport_enable(struct device_node* node, long param, long value)
 }
 
 #ifdef CONFIG_SMP
-static long __pmac
+static long
 core99_reset_cpu(struct device_node* node, long param, long value)
 {
         unsigned int reset_io = 0;
@@ -1104,7 +1104,7 @@ core99_reset_cpu(struct device_node* node, long param, long value)
 }
 #endif /* CONFIG_SMP */
 
-static long __pmac
+static long
 core99_usb_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip* macio;
@@ -1257,7 +1257,7 @@ core99_usb_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_firewire_enable(struct device_node* node, long param, long value)
 {
         unsigned long flags;
@@ -1284,7 +1284,7 @@ core99_firewire_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 core99_firewire_cable_power(struct device_node* node, long param, long value)
 {
         unsigned long flags;
@@ -1315,7 +1315,7 @@ core99_firewire_cable_power(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 intrepid_aack_delay_enable(struct device_node* node, long param, long value)
 {
         unsigned long flags;
@@ -1336,7 +1336,7 @@ intrepid_aack_delay_enable(struct device_node* node, long param, long value)
 
 #endif /* CONFIG_POWER4 */
 
-static long __pmac
+static long
 core99_read_gpio(struct device_node* node, long param, long value)
 {
         struct macio_chip* macio = &macio_chips[0];
@@ -1345,7 +1345,7 @@ core99_read_gpio(struct device_node* node, long param, long value)
 }
 
 
-static long __pmac
+static long
 core99_write_gpio(struct device_node* node, long param, long value)
 {
         struct macio_chip* macio = &macio_chips[0];
@@ -1356,7 +1356,7 @@ core99_write_gpio(struct device_node* node, long param, long value)
 
 #ifdef CONFIG_POWER4
 
-static long __pmac
+static long
 g5_gmac_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip* macio = &macio_chips[0];
@@ -1380,7 +1380,7 @@ g5_gmac_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 g5_fw_enable(struct device_node* node, long param, long value)
 {
         struct macio_chip* macio = &macio_chips[0];
@@ -1403,7 +1403,7 @@ g5_fw_enable(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 g5_mpic_enable(struct device_node* node, long param, long value)
 {
         unsigned long flags;
@@ -1419,7 +1419,7 @@ g5_mpic_enable(struct device_node* node, long param, long value)
 }
 
 #ifdef CONFIG_SMP
-static long __pmac
+static long
 g5_reset_cpu(struct device_node* node, long param, long value)
 {
         unsigned int reset_io = 0;
@@ -1465,7 +1465,7 @@ g5_reset_cpu(struct device_node* node, long param, long value)
  * This takes the second CPU off the bus on dual CPU machines
  * running UP
  */
-void __pmac g5_phy_disable_cpu1(void)
+void g5_phy_disable_cpu1(void)
 {
         UN_OUT(U3_API_PHY_CONFIG_1, 0);
 }
@@ -1474,7 +1474,7 @@ void __pmac g5_phy_disable_cpu1(void)
 
 #ifndef CONFIG_POWER4
 
-static void __pmac
+static void
 keylargo_shutdown(struct macio_chip* macio, int sleep_mode)
 {
         u32 temp;
@@ -1528,7 +1528,7 @@ keylargo_shutdown(struct macio_chip* macio, int sleep_mode)
         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
 }
 
-static void __pmac
+static void
 pangea_shutdown(struct macio_chip* macio, int sleep_mode)
 {
         u32 temp;
@@ -1562,7 +1562,7 @@ pangea_shutdown(struct macio_chip* macio, int sleep_mode)
         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
 }
 
-static void __pmac
+static void
 intrepid_shutdown(struct macio_chip* macio, int sleep_mode)
 {
         u32 temp;
@@ -1591,7 +1591,7 @@ intrepid_shutdown(struct macio_chip* macio, int sleep_mode)
 }
 
 
-void __pmac pmac_tweak_clock_spreading(int enable)
+void pmac_tweak_clock_spreading(int enable)
 {
         struct macio_chip* macio = &macio_chips[0];
 
@@ -1698,7 +1698,7 @@ void __pmac pmac_tweak_clock_spreading(int enable)
 }
 
 
-static int __pmac
+static int
 core99_sleep(void)
 {
         struct macio_chip* macio;
@@ -1791,7 +1791,7 @@ core99_sleep(void)
         return 0;
 }
 
-static int __pmac
+static int
 core99_wake_up(void)
 {
         struct macio_chip* macio;
@@ -1854,7 +1854,7 @@ core99_wake_up(void)
         return 0;
 }
 
-static long __pmac
+static long
 core99_sleep_state(struct device_node* node, long param, long value)
 {
         /* Param == 1 means to enter the "fake sleep" mode that is
@@ -1884,7 +1884,7 @@ core99_sleep_state(struct device_node* node, long param, long value)
 
 #endif /* CONFIG_POWER4 */
 
-static long __pmac
+static long
 generic_dev_can_wake(struct device_node* node, long param, long value)
 {
         /* Todo: eventually check we are really dealing with on-board
@@ -1896,7 +1896,7 @@ generic_dev_can_wake(struct device_node* node, long param, long value)
         return 0;
 }
 
-static long __pmac
+static long
 generic_get_mb_info(struct device_node* node, long param, long value)
 {
         switch(param) {
@@ -1919,7 +1919,7 @@ generic_get_mb_info(struct device_node* node, long param, long value)
 
 /* Used on any machine
  */
-static struct feature_table_entry any_features[]  __pmacdata = {
+static struct feature_table_entry any_features[] = {
         { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
         { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
         { 0, NULL }
@@ -1931,7 +1931,7 @@ static struct feature_table_entry any_features[]  __pmacdata = {
  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
  * to have issues with turning on/off those asic cells
  */
-static struct feature_table_entry ohare_features[]  __pmacdata = {
+static struct feature_table_entry ohare_features[] = {
         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
         { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
         { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
@@ -1945,7 +1945,7 @@ static struct feature_table_entry ohare_features[]  __pmacdata = {
  * Separated as some features couldn't be properly tested
  * and the serial port control bits appear to confuse it.
  */
-static struct feature_table_entry heathrow_desktop_features[]  __pmacdata = {
+static struct feature_table_entry heathrow_desktop_features[] = {
         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
@@ -1957,7 +1957,7 @@ static struct feature_table_entry heathrow_desktop_features[]  __pmacdata = {
 /* Heathrow based laptop, that is the Wallstreet and mainstreet
  * powerbooks.
  */
-static struct feature_table_entry heathrow_laptop_features[]  __pmacdata = {
+static struct feature_table_entry heathrow_laptop_features[] = {
         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
@@ -1973,7 +1973,7 @@ static struct feature_table_entry heathrow_laptop_features[]  __pmacdata = {
 /* Paddington based machines
  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
  */
-static struct feature_table_entry paddington_features[]  __pmacdata = {
+static struct feature_table_entry paddington_features[] = {
         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
@@ -1991,7 +1991,7 @@ static struct feature_table_entry paddington_features[]  __pmacdata = {
  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
  * used on iBook2 & iMac "flow power".
  */
-static struct feature_table_entry core99_features[]  __pmacdata = {
+static struct feature_table_entry core99_features[] = {
         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
         { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
@@ -2014,7 +2014,7 @@ static struct feature_table_entry core99_features[]  __pmacdata = {
 
 /* RackMac
  */
-static struct feature_table_entry rackmac_features[]  __pmacdata = {
+static struct feature_table_entry rackmac_features[] = {
         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
@@ -2034,7 +2034,7 @@ static struct feature_table_entry rackmac_features[]  __pmacdata = {
 
 /* Pangea features
  */
-static struct feature_table_entry pangea_features[]  __pmacdata = {
+static struct feature_table_entry pangea_features[] = {
         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
@@ -2054,7 +2054,7 @@ static struct feature_table_entry pangea_features[]  __pmacdata = {
 
 /* Intrepid features
  */
-static struct feature_table_entry intrepid_features[]  __pmacdata = {
+static struct feature_table_entry intrepid_features[] = {
         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
@@ -2077,7 +2077,7 @@ static struct feature_table_entry intrepid_features[]  __pmacdata = {
 
 /* G5 features
  */
-static struct feature_table_entry g5_features[]  __pmacdata = {
+static struct feature_table_entry g5_features[] = {
         { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
         { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
         { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
@@ -2091,7 +2091,7 @@ static struct feature_table_entry g5_features[]  __pmacdata = {
 
 #endif /* CONFIG_POWER4 */
 
-static struct pmac_mb_def pmac_mb_defs[] __pmacdata = {
+static struct pmac_mb_def pmac_mb_defs[] = {
 #ifndef CONFIG_POWER4
         /*
          * Desktops
@@ -2356,7 +2356,7 @@ static struct pmac_mb_def pmac_mb_defs[] __pmacdata = {
 /*
  * The toplevel feature_call callback
  */
-long __pmac
+long
 pmac_do_feature_call(unsigned int selector, ...)
 {
         struct device_node* node;
@@ -2939,8 +2939,8 @@ void __init pmac_check_ht_link(void)
  * Early video resume hook
  */
 
-static void (*pmac_early_vresume_proc)(void *data) __pmacdata;
-static void *pmac_early_vresume_data __pmacdata;
+static void (*pmac_early_vresume_proc)(void *data);
+static void *pmac_early_vresume_data;
 
 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
 {
@@ -2953,7 +2953,7 @@ void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
 }
 EXPORT_SYMBOL(pmac_set_early_video_resume);
 
-void __pmac pmac_call_early_video_resume(void)
+void pmac_call_early_video_resume(void)
 {
         if (pmac_early_vresume_proc)
                 pmac_early_vresume_proc(pmac_early_vresume_data);
@@ -2963,11 +2963,11 @@ void __pmac pmac_call_early_video_resume(void)
  * AGP related suspend/resume code
  */
 
-static struct pci_dev *pmac_agp_bridge __pmacdata;
-static int (*pmac_agp_suspend)(struct pci_dev *bridge) __pmacdata;
-static int (*pmac_agp_resume)(struct pci_dev *bridge) __pmacdata;
+static struct pci_dev *pmac_agp_bridge;
+static int (*pmac_agp_suspend)(struct pci_dev *bridge);
+static int (*pmac_agp_resume)(struct pci_dev *bridge);
 
-void __pmac pmac_register_agp_pm(struct pci_dev *bridge,
+void pmac_register_agp_pm(struct pci_dev *bridge,
                                  int (*suspend)(struct pci_dev *bridge),
                                  int (*resume)(struct pci_dev *bridge))
 {
@@ -2984,7 +2984,7 @@ void __pmac pmac_register_agp_pm(struct pci_dev *bridge,
 }
 EXPORT_SYMBOL(pmac_register_agp_pm);
 
-void __pmac pmac_suspend_agp_for_card(struct pci_dev *dev)
+void pmac_suspend_agp_for_card(struct pci_dev *dev)
 {
         if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
                 return;
@@ -2994,7 +2994,7 @@ void __pmac pmac_suspend_agp_for_card(struct pci_dev *dev)
 }
 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
 
-void __pmac pmac_resume_agp_for_card(struct pci_dev *dev)
+void pmac_resume_agp_for_card(struct pci_dev *dev)
 {
         if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
                 return;
diff --git a/arch/ppc/platforms/pmac_nvram.c b/arch/ppc/platforms/pmac_nvram.c
index c9de64205996..8c9b008c7226 100644
--- a/arch/ppc/platforms/pmac_nvram.c
+++ b/arch/ppc/platforms/pmac_nvram.c
@@ -88,17 +88,17 @@ extern int system_running;
 static int (*core99_write_bank)(int bank, u8* datas);
 static int (*core99_erase_bank)(int bank);
 
-static char *nvram_image __pmacdata;
+static char *nvram_image;
 
 
-static unsigned char __pmac core99_nvram_read_byte(int addr)
+static unsigned char core99_nvram_read_byte(int addr)
 {
         if (nvram_image == NULL)
                 return 0xff;
         return nvram_image[addr];
 }
 
-static void __pmac core99_nvram_write_byte(int addr, unsigned char val)
+static void core99_nvram_write_byte(int addr, unsigned char val)
 {
         if (nvram_image == NULL)
                 return;
@@ -106,18 +106,18 @@ static void __pmac core99_nvram_write_byte(int addr, unsigned char val)
 }
 
 
-static unsigned char __openfirmware direct_nvram_read_byte(int addr)
+static unsigned char direct_nvram_read_byte(int addr)
 {
         return in_8(&nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult]);
 }
 
-static void __openfirmware direct_nvram_write_byte(int addr, unsigned char val)
+static void direct_nvram_write_byte(int addr, unsigned char val)
 {
         out_8(&nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult], val);
 }
 
 
-static unsigned char __pmac indirect_nvram_read_byte(int addr)
+static unsigned char indirect_nvram_read_byte(int addr)
 {
         unsigned char val;
         unsigned long flags;
@@ -130,7 +130,7 @@ static unsigned char __pmac indirect_nvram_read_byte(int addr)
         return val;
 }
 
-static void __pmac indirect_nvram_write_byte(int addr, unsigned char val)
+static void indirect_nvram_write_byte(int addr, unsigned char val)
 {
         unsigned long flags;
 
@@ -143,13 +143,13 @@ static void __pmac indirect_nvram_write_byte(int addr, unsigned char val)
 
 #ifdef CONFIG_ADB_PMU
 
-static void __pmac pmu_nvram_complete(struct adb_request *req)
+static void pmu_nvram_complete(struct adb_request *req)
 {
         if (req->arg)
                 complete((struct completion *)req->arg);
 }
 
-static unsigned char __pmac pmu_nvram_read_byte(int addr)
+static unsigned char pmu_nvram_read_byte(int addr)
 {
         struct adb_request req;
         DECLARE_COMPLETION(req_complete); 
@@ -165,7 +165,7 @@ static unsigned char __pmac pmu_nvram_read_byte(int addr)
         return req.reply[0];
 }
 
-static void __pmac pmu_nvram_write_byte(int addr, unsigned char val)
+static void pmu_nvram_write_byte(int addr, unsigned char val)
 {
         struct adb_request req;
         DECLARE_COMPLETION(req_complete); 
@@ -183,7 +183,7 @@ static void __pmac pmu_nvram_write_byte(int addr, unsigned char val)
 #endif /* CONFIG_ADB_PMU */
 
 
-static u8 __pmac chrp_checksum(struct chrp_header* hdr)
+static u8 chrp_checksum(struct chrp_header* hdr)
 {
         u8 *ptr;
         u16 sum = hdr->signature;
@@ -194,7 +194,7 @@ static u8 __pmac chrp_checksum(struct chrp_header* hdr)
         return sum;
 }
 
-static u32 __pmac core99_calc_adler(u8 *buffer)
+static u32 core99_calc_adler(u8 *buffer)
 {
         int cnt;
         u32 low, high;
@@ -216,7 +216,7 @@ static u32 __pmac core99_calc_adler(u8 *buffer)
         return (high << 16) | low;
 }
 
-static u32 __pmac core99_check(u8* datas)
+static u32 core99_check(u8* datas)
 {
         struct core99_header* hdr99 = (struct core99_header*)datas;
 
@@ -235,7 +235,7 @@ static u32 __pmac core99_check(u8* datas)
         return hdr99->generation;
 }
 
-static int __pmac sm_erase_bank(int bank)
+static int sm_erase_bank(int bank)
 {
         int stat, i;
         unsigned long timeout;
@@ -267,7 +267,7 @@ static int __pmac sm_erase_bank(int bank)
         return 0;
 }
 
-static int __pmac sm_write_bank(int bank, u8* datas)
+static int sm_write_bank(int bank, u8* datas)
 {
         int i, stat = 0;
         unsigned long timeout;
@@ -302,7 +302,7 @@ static int __pmac sm_write_bank(int bank, u8* datas)
         return 0;
 }
 
-static int __pmac amd_erase_bank(int bank)
+static int amd_erase_bank(int bank)
 {
         int i, stat = 0;
         unsigned long timeout;
@@ -349,7 +349,7 @@ static int __pmac amd_erase_bank(int bank)
         return 0;
 }
 
-static int __pmac amd_write_bank(int bank, u8* datas)
+static int amd_write_bank(int bank, u8* datas)
 {
         int i, stat = 0;
         unsigned long timeout;
@@ -430,7 +430,7 @@ static void __init lookup_partitions(void)
         DBG("nvram: NR partition at 0x%x\n", nvram_partitions[pmac_nvram_NR]);
 }
 
-static void __pmac core99_nvram_sync(void)
+static void core99_nvram_sync(void)
 {
         struct core99_header* hdr99;
         unsigned long flags;
@@ -554,12 +554,12 @@ void __init pmac_nvram_init(void)
         lookup_partitions();
 }
 
-int __pmac pmac_get_partition(int partition)
+int pmac_get_partition(int partition)
 {
         return nvram_partitions[partition];
 }
 
-u8 __pmac pmac_xpram_read(int xpaddr)
+u8 pmac_xpram_read(int xpaddr)
 {
         int offset = nvram_partitions[pmac_nvram_XPRAM];
 
@@ -569,7 +569,7 @@ u8 __pmac pmac_xpram_read(int xpaddr)
         return ppc_md.nvram_read_val(xpaddr + offset);
 }
 
-void __pmac pmac_xpram_write(int xpaddr, u8 data)
+void pmac_xpram_write(int xpaddr, u8 data)
 {
         int offset = nvram_partitions[pmac_nvram_XPRAM];
 
diff --git a/arch/ppc/platforms/pmac_pci.c b/arch/ppc/platforms/pmac_pci.c
index 719fb49fe2bc..786295b6ddd0 100644
--- a/arch/ppc/platforms/pmac_pci.c
+++ b/arch/ppc/platforms/pmac_pci.c
@@ -141,7 +141,7 @@ fixup_bus_range(struct device_node *bridge)
         |(((unsigned long)(off)) & 0xFCUL) \
         |1UL)
 
-static void volatile __iomem * __pmac
+static void volatile __iomem *
 macrisc_cfg_access(struct pci_controller* hose, u8 bus, u8 dev_fn, u8 offset)
 {
         unsigned int caddr;
@@ -162,7 +162,7 @@ macrisc_cfg_access(struct pci_controller* hose, u8 bus, u8 dev_fn, u8 offset)
         return hose->cfg_data + offset;
 }
 
-static int __pmac
+static int
 macrisc_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
                     int len, u32 *val)
 {
@@ -190,7 +190,7 @@ macrisc_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static int __pmac
+static int
 macrisc_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
                      int len, u32 val)
 {
@@ -230,7 +230,7 @@ static struct pci_ops macrisc_pci_ops =
 /*
  * Verifiy that a specific (bus, dev_fn) exists on chaos
  */
-static int __pmac
+static int
 chaos_validate_dev(struct pci_bus *bus, int devfn, int offset)
 {
         struct device_node *np;
@@ -252,7 +252,7 @@ chaos_validate_dev(struct pci_bus *bus, int devfn, int offset)
         return PCIBIOS_SUCCESSFUL;
 }
 
-static int __pmac
+static int
 chaos_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
                   int len, u32 *val)
 {
@@ -264,7 +264,7 @@ chaos_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
         return macrisc_read_config(bus, devfn, offset, len, val);
 }
 
-static int __pmac
+static int
 chaos_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
                    int len, u32 val)
 {
@@ -294,7 +294,7 @@ static struct pci_ops chaos_pci_ops =
                 + (((unsigned long)bus) << 16) \
                 + 0x01000000UL)
 
-static void volatile __iomem * __pmac
+static void volatile __iomem *
 u3_ht_cfg_access(struct pci_controller* hose, u8 bus, u8 devfn, u8 offset)
 {
         if (bus == hose->first_busno) {
@@ -307,7 +307,7 @@ u3_ht_cfg_access(struct pci_controller* hose, u8 bus, u8 devfn, u8 offset)
                 return hose->cfg_data + U3_HT_CFA1(bus, devfn, offset);
 }
 
-static int __pmac
+static int
 u3_ht_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
                     int len, u32 *val)
 {
@@ -357,7 +357,7 @@ u3_ht_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static int __pmac
+static int
 u3_ht_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
                      int len, u32 val)
 {
@@ -575,7 +575,7 @@ pmac_find_bridges(void)
          * some offset between bus number and domains for now when we
          * assign all busses should help for now
          */
-        if (pci_assign_all_busses)
+        if (pci_assign_all_buses)
                 pcibios_assign_bus_offset = 0x10;
 
 #ifdef CONFIG_POWER4 
@@ -643,7 +643,7 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
 static int __init
 setup_uninorth(struct pci_controller* hose, struct reg_property* addr)
 {
-        pci_assign_all_busses = 1;
+        pci_assign_all_buses = 1;
         has_uninorth = 1;
         hose->ops = &macrisc_pci_ops;
         hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
@@ -677,7 +677,7 @@ setup_u3_agp(struct pci_controller* hose, struct reg_property* addr)
 {
         /* On G5, we move AGP up to high bus number so we don't need
          * to reassign bus numbers for HT. If we ever have P2P bridges
-         * on AGP, we'll have to move pci_assign_all_busses to the
+         * on AGP, we'll have to move pci_assign_all_buses to the
          * pci_controller structure so we enable it for AGP and not for
          * HT childs.
          * We hard code the address because of the different size of
@@ -899,7 +899,7 @@ pmac_pcibios_fixup(void)
         pcibios_fixup_OF_interrupts();
 }
 
-int __pmac
+int
 pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
 {
         struct device_node* node;
@@ -1096,7 +1096,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pmac_pci_fixup_pciata);
  * Disable second function on K2-SATA, it's broken
  * and disable IO BARs on first one
  */
-void __pmac pmac_pci_fixup_k2_sata(struct pci_dev* dev)
+void pmac_pci_fixup_k2_sata(struct pci_dev* dev)
 {
         int i;
         u16 cmd;
diff --git a/arch/ppc/platforms/pmac_pic.c b/arch/ppc/platforms/pmac_pic.c
index 2ce058895e03..9f2d95ea8564 100644
--- a/arch/ppc/platforms/pmac_pic.c
+++ b/arch/ppc/platforms/pmac_pic.c
@@ -35,6 +35,7 @@
 #include <asm/open_pic.h>
 #include <asm/xmon.h>
 #include <asm/pmac_feature.h>
+#include <asm/machdep.h>
 
 #include "pmac_pic.h"
 
@@ -53,7 +54,7 @@ struct pmac_irq_hw {
 };
 
 /* Default addresses */
-static volatile struct pmac_irq_hw *pmac_irq_hw[4] __pmacdata = {
+static volatile struct pmac_irq_hw *pmac_irq_hw[4] = {
         (struct pmac_irq_hw *) 0xf3000020,
         (struct pmac_irq_hw *) 0xf3000010,
         (struct pmac_irq_hw *) 0xf4000020,
@@ -64,22 +65,22 @@ static volatile struct pmac_irq_hw *pmac_irq_hw[4] __pmacdata = {
 #define OHARE_LEVEL_MASK        0x1ff00000
 #define HEATHROW_LEVEL_MASK     0x1ff00000
 
-static int max_irqs __pmacdata;
-static int max_real_irqs __pmacdata;
-static u32 level_mask[4] __pmacdata;
+static int max_irqs;
+static int max_real_irqs;
+static u32 level_mask[4];
 
-static DEFINE_SPINLOCK(pmac_pic_lock __pmacdata);
+static DEFINE_SPINLOCK(pmac_pic_lock);
 
 
 #define GATWICK_IRQ_POOL_SIZE        10
-static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE] __pmacdata;
+static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE];
 
 /*
  * Mark an irq as "lost".  This is only used on the pmac
  * since it can lose interrupts (see pmac_set_irq_mask).
  * -- Cort
  */
-void __pmac
+void
 __set_lost(unsigned long irq_nr, int nokick)
 {
         if (!test_and_set_bit(irq_nr, ppc_lost_interrupts)) {
@@ -89,7 +90,7 @@ __set_lost(unsigned long irq_nr, int nokick)
         }
 }
 
-static void __pmac
+static void
 pmac_mask_and_ack_irq(unsigned int irq_nr)
 {
         unsigned long bit = 1UL << (irq_nr & 0x1f);
@@ -114,7 +115,7 @@ pmac_mask_and_ack_irq(unsigned int irq_nr)
         spin_unlock_irqrestore(&pmac_pic_lock, flags);
 }
 
-static void __pmac pmac_set_irq_mask(unsigned int irq_nr, int nokicklost)
+static void pmac_set_irq_mask(unsigned int irq_nr, int nokicklost)
 {
         unsigned long bit = 1UL << (irq_nr & 0x1f);
         int i = irq_nr >> 5;
@@ -147,7 +148,7 @@ static void __pmac pmac_set_irq_mask(unsigned int irq_nr, int nokicklost)
 /* When an irq gets requested for the first client, if it's an
  * edge interrupt, we clear any previous one on the controller
  */
-static unsigned int __pmac pmac_startup_irq(unsigned int irq_nr)
+static unsigned int pmac_startup_irq(unsigned int irq_nr)
 {
         unsigned long bit = 1UL << (irq_nr & 0x1f);
         int i = irq_nr >> 5;
@@ -160,20 +161,20 @@ static unsigned int __pmac pmac_startup_irq(unsigned int irq_nr)
         return 0;
 }
 
-static void __pmac pmac_mask_irq(unsigned int irq_nr)
+static void pmac_mask_irq(unsigned int irq_nr)
 {
         clear_bit(irq_nr, ppc_cached_irq_mask);
         pmac_set_irq_mask(irq_nr, 0);
         mb();
 }
 
-static void __pmac pmac_unmask_irq(unsigned int irq_nr)
+static void pmac_unmask_irq(unsigned int irq_nr)
 {
         set_bit(irq_nr, ppc_cached_irq_mask);
         pmac_set_irq_mask(irq_nr, 0);
 }
 
-static void __pmac pmac_end_irq(unsigned int irq_nr)
+static void pmac_end_irq(unsigned int irq_nr)
 {
         if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))
             && irq_desc[irq_nr].action) {
diff --git a/arch/ppc/platforms/pmac_setup.c b/arch/ppc/platforms/pmac_setup.c
index d6356f480d90..55d2beffe560 100644
--- a/arch/ppc/platforms/pmac_setup.c
+++ b/arch/ppc/platforms/pmac_setup.c
@@ -122,7 +122,7 @@ extern struct smp_ops_t psurge_smp_ops;
 extern struct smp_ops_t core99_smp_ops;
 #endif /* CONFIG_SMP */
 
-static int __pmac
+static int
 pmac_show_cpuinfo(struct seq_file *m)
 {
         struct device_node *np;
@@ -226,7 +226,7 @@ pmac_show_cpuinfo(struct seq_file *m)
         return 0;
 }
 
-static int __openfirmware
+static int
 pmac_show_percpuinfo(struct seq_file *m, int i)
 {
 #ifdef CONFIG_CPU_FREQ_PMAC
@@ -330,9 +330,9 @@ pmac_setup_arch(void)
 #ifdef CONFIG_SMP
         /* Check for Core99 */
         if (find_devices("uni-n") || find_devices("u3"))
-                ppc_md.smp_ops = &core99_smp_ops;
+                smp_ops = &core99_smp_ops;
         else
-                ppc_md.smp_ops = &psurge_smp_ops;
+                smp_ops = &psurge_smp_ops;
 #endif /* CONFIG_SMP */
 
         pci_create_OF_bus_map();
@@ -447,7 +447,7 @@ static int pmac_pm_enter(suspend_state_t state)
         enable_kernel_fp();
 
 #ifdef CONFIG_ALTIVEC
-        if (cur_cpu_spec[0]->cpu_features & CPU_FTR_ALTIVEC)
+        if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
                 enable_kernel_altivec();
 #endif /* CONFIG_ALTIVEC */
 
@@ -485,7 +485,7 @@ static int pmac_late_init(void)
 late_initcall(pmac_late_init);
 
 /* can't be __init - can be called whenever a disk is first accessed */
-void __pmac
+void
 note_bootable_part(dev_t dev, int part, int goodness)
 {
         static int found_boot = 0;
@@ -511,7 +511,7 @@ note_bootable_part(dev_t dev, int part, int goodness)
         }
 }
 
-static void __pmac
+static void
 pmac_restart(char *cmd)
 {
 #ifdef CONFIG_ADB_CUDA
@@ -536,7 +536,7 @@ pmac_restart(char *cmd)
         }
 }
 
-static void __pmac
+static void
 pmac_power_off(void)
 {
 #ifdef CONFIG_ADB_CUDA
@@ -561,7 +561,7 @@ pmac_power_off(void)
         }
 }
 
-static void __pmac
+static void
 pmac_halt(void)
 {
    pmac_power_off();
@@ -661,7 +661,6 @@ pmac_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_md.setup_arch     = pmac_setup_arch;
         ppc_md.show_cpuinfo   = pmac_show_cpuinfo;
         ppc_md.show_percpuinfo = pmac_show_percpuinfo;
-        ppc_md.irq_canonicalize = NULL;
         ppc_md.init_IRQ       = pmac_pic_init;
         ppc_md.get_irq        = pmac_get_irq; /* Changed later on ... */
 
diff --git a/arch/ppc/platforms/pmac_sleep.S b/arch/ppc/platforms/pmac_sleep.S
index 88419c77ac43..22b113d19b24 100644
--- a/arch/ppc/platforms/pmac_sleep.S
+++ b/arch/ppc/platforms/pmac_sleep.S
@@ -387,10 +387,10 @@ turn_on_mmu:
 #endif /* defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ) */
 
         .section .data
-        .balign L1_CACHE_LINE_SIZE
+        .balign L1_CACHE_BYTES
 sleep_storage:
         .long 0
-        .balign L1_CACHE_LINE_SIZE, 0
+        .balign L1_CACHE_BYTES, 0
 
 #endif /* CONFIG_6xx */
         .section .text
diff --git a/arch/ppc/platforms/pmac_smp.c b/arch/ppc/platforms/pmac_smp.c
index 794a23994b82..26ff26238f03 100644
--- a/arch/ppc/platforms/pmac_smp.c
+++ b/arch/ppc/platforms/pmac_smp.c
@@ -186,7 +186,7 @@ static inline void psurge_clr_ipi(int cpu)
  */
 static unsigned long psurge_smp_message[NR_CPUS];
 
-void __pmac psurge_smp_message_recv(struct pt_regs *regs)
+void psurge_smp_message_recv(struct pt_regs *regs)
 {
         int cpu = smp_processor_id();
         int msg;
@@ -203,14 +203,13 @@ void __pmac psurge_smp_message_recv(struct pt_regs *regs)
                         smp_message_recv(msg, regs);
 }
 
-irqreturn_t __pmac psurge_primary_intr(int irq, void *d, struct pt_regs *regs)
+irqreturn_t psurge_primary_intr(int irq, void *d, struct pt_regs *regs)
 {
         psurge_smp_message_recv(regs);
         return IRQ_HANDLED;
 }
 
-static void __pmac smp_psurge_message_pass(int target, int msg, unsigned long data,
-                                           int wait)
+static void smp_psurge_message_pass(int target, int msg)
 {
         int i;
 
@@ -629,7 +628,7 @@ void smp_core99_give_timebase(void)
 
 
 /* PowerSurge-style Macs */
-struct smp_ops_t psurge_smp_ops __pmacdata = {
+struct smp_ops_t psurge_smp_ops = {
         .message_pass   = smp_psurge_message_pass,
         .probe          = smp_psurge_probe,
         .kick_cpu       = smp_psurge_kick_cpu,
@@ -639,7 +638,7 @@ struct smp_ops_t psurge_smp_ops __pmacdata = {
 };
 
 /* Core99 Macs (dual G4s) */
-struct smp_ops_t core99_smp_ops __pmacdata = {
+struct smp_ops_t core99_smp_ops = {
         .message_pass   = smp_openpic_message_pass,
         .probe          = smp_core99_probe,
         .kick_cpu       = smp_core99_kick_cpu,
diff --git a/arch/ppc/platforms/pmac_time.c b/arch/ppc/platforms/pmac_time.c
index efb819f9490d..edb9fcc64790 100644
--- a/arch/ppc/platforms/pmac_time.c
+++ b/arch/ppc/platforms/pmac_time.c
@@ -77,7 +77,7 @@ pmac_time_init(void)
 #endif
 }
 
-unsigned long __pmac
+unsigned long
 pmac_get_rtc_time(void)
 {
 #if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
@@ -118,7 +118,7 @@ pmac_get_rtc_time(void)
         return 0;
 }
 
-int __pmac
+int
 pmac_set_rtc_time(unsigned long nowtime)
 {
 #if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
@@ -210,7 +210,7 @@ via_calibrate_decr(void)
 /*
  * Reset the time after a sleep.
  */
-static int __pmac
+static int
 time_sleep_notify(struct pmu_sleep_notifier *self, int when)
 {
         static unsigned long time_diff;
@@ -235,7 +235,7 @@ time_sleep_notify(struct pmu_sleep_notifier *self, int when)
         return PBOOK_SLEEP_OK;
 }
 
-static struct pmu_sleep_notifier time_sleep_notifier __pmacdata = {
+static struct pmu_sleep_notifier time_sleep_notifier = {
         time_sleep_notify, SLEEP_LEVEL_MISC,
 };
 #endif /* CONFIG_PM */
diff --git a/arch/ppc/platforms/pplus.c b/arch/ppc/platforms/pplus.c
index e70aae20d6f9..22bd40cfb092 100644
--- a/arch/ppc/platforms/pplus.c
+++ b/arch/ppc/platforms/pplus.c
@@ -646,14 +646,6 @@ static void pplus_power_off(void)
         pplus_halt();
 }
 
-static unsigned int pplus_irq_canonicalize(u_int irq)
-{
-        if (irq == 2)
-                return 9;
-        else
-                return irq;
-}
-
 static void __init pplus_init_IRQ(void)
 {
         int i;
@@ -673,10 +665,7 @@ static void __init pplus_init_IRQ(void)
                 ppc_md.get_irq = openpic_get_irq;
         }
 
-        for (i = 0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-
-        i8259_init(0);
+        i8259_init(0, 0);
 
         if (ppc_md.progress)
                 ppc_md.progress("init_irq: exit", 0);
@@ -872,10 +861,10 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ISA_DMA_THRESHOLD = 0x00ffffff;
         DMA_MODE_READ = 0x44;
         DMA_MODE_WRITE = 0x48;
+        ppc_do_canonicalize_irqs = 1;
 
         ppc_md.setup_arch = pplus_setup_arch;
         ppc_md.show_cpuinfo = pplus_show_cpuinfo;
-        ppc_md.irq_canonicalize = pplus_irq_canonicalize;
         ppc_md.init_IRQ = pplus_init_IRQ;
         /* this gets changed later on if we have an OpenPIC -- Cort */
         ppc_md.get_irq = i8259_irq;
@@ -911,6 +900,6 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_md.kgdb_map_scc = gen550_kgdb_map_scc;
 #endif
 #ifdef CONFIG_SMP
-        ppc_md.smp_ops = &pplus_smp_ops;
+        smp_ops = &pplus_smp_ops;
 #endif                          /* CONFIG_SMP */
 }
diff --git a/arch/ppc/platforms/prep_pci.c b/arch/ppc/platforms/prep_pci.c
index 4760cb64251d..e50b9996848c 100644
--- a/arch/ppc/platforms/prep_pci.c
+++ b/arch/ppc/platforms/prep_pci.c
@@ -43,7 +43,7 @@ static unsigned long	*ProcInfo;
 /* Tables for known hardware */
 
 /* Motorola PowerStackII - Utah */
-static char Utah_pci_IRQ_map[23] __prepdata =
+static char Utah_pci_IRQ_map[23] =
 {
         0,   /* Slot 0  - unused */
         0,   /* Slot 1  - unused */
@@ -72,7 +72,7 @@ static char Utah_pci_IRQ_map[23] __prepdata =
         0,   /* Slot 22 - unused */
 };
 
-static char Utah_pci_IRQ_routes[] __prepdata =
+static char Utah_pci_IRQ_routes[] =
 {
         0,   /* Line 0 - Unused */
         9,   /* Line 1 */
@@ -84,7 +84,7 @@ static char Utah_pci_IRQ_routes[] __prepdata =
 
 /* Motorola PowerStackII - Omaha */
 /* no integrated SCSI or ethernet */
-static char Omaha_pci_IRQ_map[23] __prepdata =
+static char Omaha_pci_IRQ_map[23] =
 {
         0,   /* Slot 0  - unused */
         0,   /* Slot 1  - unused */
@@ -111,7 +111,7 @@ static char Omaha_pci_IRQ_map[23] __prepdata =
         0,
 };
 
-static char Omaha_pci_IRQ_routes[] __prepdata =
+static char Omaha_pci_IRQ_routes[] =
 {
         0,   /* Line 0 - Unused */
         9,   /* Line 1 */
@@ -121,7 +121,7 @@ static char Omaha_pci_IRQ_routes[] __prepdata =
 };
 
 /* Motorola PowerStack */
-static char Blackhawk_pci_IRQ_map[19] __prepdata =
+static char Blackhawk_pci_IRQ_map[19] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -144,7 +144,7 @@ static char Blackhawk_pci_IRQ_map[19] __prepdata =
         3,      /* Slot P5 */
 };
 
-static char Blackhawk_pci_IRQ_routes[] __prepdata =
+static char Blackhawk_pci_IRQ_routes[] =
 {
         0,      /* Line 0 - Unused */
         9,      /* Line 1 */
@@ -154,7 +154,7 @@ static char Blackhawk_pci_IRQ_routes[] __prepdata =
 };
 
 /* Motorola Mesquite */
-static char Mesquite_pci_IRQ_map[23] __prepdata =
+static char Mesquite_pci_IRQ_map[23] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -182,7 +182,7 @@ static char Mesquite_pci_IRQ_map[23] __prepdata =
 };
 
 /* Motorola Sitka */
-static char Sitka_pci_IRQ_map[21] __prepdata =
+static char Sitka_pci_IRQ_map[21] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -208,7 +208,7 @@ static char Sitka_pci_IRQ_map[21] __prepdata =
 };
 
 /* Motorola MTX */
-static char MTX_pci_IRQ_map[23] __prepdata =
+static char MTX_pci_IRQ_map[23] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -237,7 +237,7 @@ static char MTX_pci_IRQ_map[23] __prepdata =
 
 /* Motorola MTX Plus */
 /* Secondary bus interrupt routing is not supported yet */
-static char MTXplus_pci_IRQ_map[23] __prepdata =
+static char MTXplus_pci_IRQ_map[23] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -264,13 +264,13 @@ static char MTXplus_pci_IRQ_map[23] __prepdata =
         0,      /* Slot 22 - unused */
 };
 
-static char Raven_pci_IRQ_routes[] __prepdata =
+static char Raven_pci_IRQ_routes[] =
 {
         0,      /* This is a dummy structure */
 };
 
 /* Motorola MVME16xx */
-static char Genesis_pci_IRQ_map[16] __prepdata =
+static char Genesis_pci_IRQ_map[16] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -290,7 +290,7 @@ static char Genesis_pci_IRQ_map[16] __prepdata =
         0,      /* Slot 15 - unused */
 };
 
-static char Genesis_pci_IRQ_routes[] __prepdata =
+static char Genesis_pci_IRQ_routes[] =
 {
         0,      /* Line 0 - Unused */
         10,     /* Line 1 */
@@ -299,7 +299,7 @@ static char Genesis_pci_IRQ_routes[] __prepdata =
         15      /* Line 4 */
 };
 
-static char Genesis2_pci_IRQ_map[23] __prepdata =
+static char Genesis2_pci_IRQ_map[23] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -327,7 +327,7 @@ static char Genesis2_pci_IRQ_map[23] __prepdata =
 };
 
 /* Motorola Series-E */
-static char Comet_pci_IRQ_map[23] __prepdata =
+static char Comet_pci_IRQ_map[23] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -354,7 +354,7 @@ static char Comet_pci_IRQ_map[23] __prepdata =
         0,
 };
 
-static char Comet_pci_IRQ_routes[] __prepdata =
+static char Comet_pci_IRQ_routes[] =
 {
         0,      /* Line 0 - Unused */
         10,     /* Line 1 */
@@ -364,7 +364,7 @@ static char Comet_pci_IRQ_routes[] __prepdata =
 };
 
 /* Motorola Series-EX */
-static char Comet2_pci_IRQ_map[23] __prepdata =
+static char Comet2_pci_IRQ_map[23] =
 {
         0,      /* Slot 0  - unused */
         0,      /* Slot 1  - unused */
@@ -391,7 +391,7 @@ static char Comet2_pci_IRQ_map[23] __prepdata =
         0,
 };
 
-static char Comet2_pci_IRQ_routes[] __prepdata =
+static char Comet2_pci_IRQ_routes[] =
 {
         0,      /* Line 0 - Unused */
         10,     /* Line 1 */
@@ -405,7 +405,7 @@ static char Comet2_pci_IRQ_routes[] __prepdata =
  * This is actually based on the Carolina motherboard
  * -- Cort
  */
-static char ibm8xx_pci_IRQ_map[23] __prepdata = {
+static char ibm8xx_pci_IRQ_map[23] = {
         0, /* Slot 0  - unused */
         0, /* Slot 1  - unused */
         0, /* Slot 2  - unused */
@@ -431,7 +431,7 @@ static char ibm8xx_pci_IRQ_map[23] __prepdata = {
         2, /* Slot 22 - PCI slot 1 PCIINTx# (See below) */
 };
 
-static char ibm8xx_pci_IRQ_routes[] __prepdata = {
+static char ibm8xx_pci_IRQ_routes[] = {
         0,      /* Line 0 - unused */
         15,     /* Line 1 */
         15,     /* Line 2 */
@@ -443,7 +443,7 @@ static char ibm8xx_pci_IRQ_routes[] __prepdata = {
  * a 6015 ibm board
  * -- Cort
  */
-static char ibm6015_pci_IRQ_map[23] __prepdata = {
+static char ibm6015_pci_IRQ_map[23] = {
         0, /* Slot 0  - unused */
         0, /* Slot 1  - unused */
         0, /* Slot 2  - unused */
@@ -469,7 +469,7 @@ static char ibm6015_pci_IRQ_map[23] __prepdata = {
         2, /* Slot 22 -  */
 };
 
-static char ibm6015_pci_IRQ_routes[] __prepdata = {
+static char ibm6015_pci_IRQ_routes[] = {
         0,      /* Line 0 - unused */
         13,     /* Line 1 */
         15,     /* Line 2 */
@@ -479,7 +479,7 @@ static char ibm6015_pci_IRQ_routes[] __prepdata = {
 
 
 /* IBM Nobis and Thinkpad 850 */
-static char Nobis_pci_IRQ_map[23] __prepdata ={
+static char Nobis_pci_IRQ_map[23] ={
         0, /* Slot 0  - unused */
         0, /* Slot 1  - unused */
         0, /* Slot 2  - unused */
@@ -498,7 +498,7 @@ static char Nobis_pci_IRQ_map[23] __prepdata ={
         0, /* Slot 15 - unused */
 };
 
-static char Nobis_pci_IRQ_routes[] __prepdata = {
+static char Nobis_pci_IRQ_routes[] = {
         0, /* Line 0 - Unused */
         13, /* Line 1 */
         13, /* Line 2 */
@@ -510,7 +510,7 @@ static char Nobis_pci_IRQ_routes[] __prepdata = {
  * IBM RS/6000 43p/140  -- paulus
  * XXX we should get all this from the residual data
  */
-static char ibm43p_pci_IRQ_map[23] __prepdata = {
+static char ibm43p_pci_IRQ_map[23] = {
         0, /* Slot 0  - unused */
         0, /* Slot 1  - unused */
         0, /* Slot 2  - unused */
@@ -536,7 +536,7 @@ static char ibm43p_pci_IRQ_map[23] __prepdata = {
         1, /* Slot 22 - PCI slot 1 PCIINTx# (See below) */
 };
 
-static char ibm43p_pci_IRQ_routes[] __prepdata = {
+static char ibm43p_pci_IRQ_routes[] = {
         0,      /* Line 0 - unused */
         15,     /* Line 1 */
         15,     /* Line 2 */
@@ -559,7 +559,7 @@ struct powerplus_irq_list
  * are routed to OpenPIC inputs 5-8.  These values are offset by
  * 16 in the table to reflect the Linux kernel interrupt value.
  */
-struct powerplus_irq_list Powerplus_pci_IRQ_list __prepdata =
+struct powerplus_irq_list Powerplus_pci_IRQ_list =
 {
         {25, 26, 27, 28},
         {21, 22, 23, 24}
@@ -572,7 +572,7 @@ struct powerplus_irq_list Powerplus_pci_IRQ_list __prepdata =
  * are routed to OpenPIC inputs 12-15. These values are offset by
  * 16 in the table to reflect the Linux kernel interrupt value.
  */
-struct powerplus_irq_list Mesquite_pci_IRQ_list __prepdata =
+struct powerplus_irq_list Mesquite_pci_IRQ_list =
 {
         {24, 25, 26, 27},
         {28, 29, 30, 31}
@@ -582,7 +582,7 @@ struct powerplus_irq_list Mesquite_pci_IRQ_list __prepdata =
  * This table represents the standard PCI swizzle defined in the
  * PCI bus specification.
  */
-static unsigned char prep_pci_intpins[4][4] __prepdata =
+static unsigned char prep_pci_intpins[4][4] =
 {
         { 1, 2, 3, 4},  /* Buses 0, 4, 8, ... */
         { 2, 3, 4, 1},  /* Buses 1, 5, 9, ... */
@@ -622,7 +622,7 @@ static unsigned char prep_pci_intpins[4][4] __prepdata =
 #define MIN_DEVNR       11
 #define MAX_DEVNR       22
 
-static int __prep
+static int
 prep_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
                  int len, u32 *val)
 {
@@ -652,7 +652,7 @@ prep_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static int __prep
+static int
 prep_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
                   int len, u32 val)
 {
@@ -804,7 +804,7 @@ struct mot_info {
         void            (*map_non0_bus)(struct pci_dev *);      /* For boards with more than bus 0 devices. */
         struct powerplus_irq_list *pci_irq_list; /* List of PCI MPIC inputs */
         unsigned char   secondary_bridge_devfn; /* devfn of secondary bus transparent bridge */
-} mot_info[] __prepdata = {
+} mot_info[] = {
         {0x300, 0x00, 0x00, "MVME 2400",                        Genesis2_pci_IRQ_map,   Raven_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xFF},
         {0x010, 0x00, 0x00, "Genesis",                          Genesis_pci_IRQ_map,    Genesis_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
         {0x020, 0x00, 0x00, "Powerstack (Series E)",            Comet_pci_IRQ_map,      Comet_pci_IRQ_routes, NULL, NULL, 0x00},
diff --git a/arch/ppc/platforms/prep_setup.c b/arch/ppc/platforms/prep_setup.c
index bc926be95472..067d7d53b81e 100644
--- a/arch/ppc/platforms/prep_setup.c
+++ b/arch/ppc/platforms/prep_setup.c
@@ -89,9 +89,6 @@ extern void prep_tiger1_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi
 #define cached_21       (((char *)(ppc_cached_irq_mask))[3])
 #define cached_A1       (((char *)(ppc_cached_irq_mask))[2])
 
-/* for the mac fs */
-dev_t boot_dev;
-
 #ifdef CONFIG_SOUND_CS4232
 long ppc_cs4232_dma, ppc_cs4232_dma2;
 #endif
@@ -173,7 +170,7 @@ prep_carolina_enable_l2(void)
 }
 
 /* cpuinfo code common to all IBM PReP */
-static void __prep
+static void
 prep_ibm_cpuinfo(struct seq_file *m)
 {
         unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
@@ -209,14 +206,14 @@ prep_ibm_cpuinfo(struct seq_file *m)
         }
 }
 
-static int __prep
+static int
 prep_gen_cpuinfo(struct seq_file *m)
 {
         prep_ibm_cpuinfo(m);
         return 0;
 }
 
-static int __prep
+static int
 prep_sandalfoot_cpuinfo(struct seq_file *m)
 {
         unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
@@ -243,7 +240,7 @@ prep_sandalfoot_cpuinfo(struct seq_file *m)
         return 0;
 }
 
-static int __prep
+static int
 prep_thinkpad_cpuinfo(struct seq_file *m)
 {
         unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
@@ -314,7 +311,7 @@ prep_thinkpad_cpuinfo(struct seq_file *m)
         return 0;
 }
 
-static int __prep
+static int
 prep_carolina_cpuinfo(struct seq_file *m)
 {
         unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
@@ -350,7 +347,7 @@ prep_carolina_cpuinfo(struct seq_file *m)
         return 0;
 }
 
-static int __prep
+static int
 prep_tiger1_cpuinfo(struct seq_file *m)
 {
         unsigned int l2_reg = inb(PREP_IBM_L2INFO);
@@ -393,7 +390,7 @@ prep_tiger1_cpuinfo(struct seq_file *m)
 
 
 /* Used by all Motorola PReP */
-static int __prep
+static int
 prep_mot_cpuinfo(struct seq_file *m)
 {
         unsigned int cachew = *((unsigned char *)CACHECRBA);
@@ -454,7 +451,7 @@ no_l2:
         return 0;
 }
 
-static void __prep
+static void
 prep_restart(char *cmd)
 {
 #define PREP_SP92       0x92    /* Special Port 92 */
@@ -473,7 +470,7 @@ prep_restart(char *cmd)
 #undef PREP_SP92
 }
 
-static void __prep
+static void
 prep_halt(void)
 {
         local_irq_disable(); /* no interrupts */
@@ -488,7 +485,7 @@ prep_halt(void)
 /* Carrera is the power manager in the Thinkpads. Unfortunately not much is
  * known about it, so we can't power down.
  */
-static void __prep
+static void
 prep_carrera_poweroff(void)
 {
         prep_halt();
@@ -501,7 +498,7 @@ prep_carrera_poweroff(void)
  * somewhat in the IBM Carolina Technical Specification.
  * -Hollis
  */
-static void __prep
+static void
 utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value)
 {
         /*
@@ -539,7 +536,7 @@ utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value)
         udelay(100);                            /* important: let controller recover */
 }
 
-static void __prep
+static void
 prep_sig750_poweroff(void)
 {
         /* tweak the power manager found in most IBM PRePs (except Thinkpads) */
@@ -554,7 +551,7 @@ prep_sig750_poweroff(void)
         /* not reached */
 }
 
-static int __prep
+static int
 prep_show_percpuinfo(struct seq_file *m, int i)
 {
         /* PREP's without residual data will give incorrect values here */
@@ -700,12 +697,12 @@ prep_set_bat(void)
 /*
  * IBM 3-digit status LED
  */
-static unsigned int ibm_statusled_base __prepdata;
+static unsigned int ibm_statusled_base;
 
-static void __prep
+static void
 ibm_statusled_progress(char *s, unsigned short hex);
 
-static int __prep
+static int
 ibm_statusled_panic(struct notifier_block *dummy1, unsigned long dummy2,
                     void * dummy3)
 {
@@ -713,13 +710,13 @@ ibm_statusled_panic(struct notifier_block *dummy1, unsigned long dummy2,
         return NOTIFY_DONE;
 }
 
-static struct notifier_block ibm_statusled_block __prepdata = {
+static struct notifier_block ibm_statusled_block = {
         ibm_statusled_panic,
         NULL,
         INT_MAX /* try to do it first */
 };
 
-static void __prep
+static void
 ibm_statusled_progress(char *s, unsigned short hex)
 {
         static int notifier_installed;
@@ -945,19 +942,6 @@ prep_calibrate_decr(void)
                 todc_calibrate_decr();
 }
 
-static unsigned int __prep
-prep_irq_canonicalize(u_int irq)
-{
-        if (irq == 2)
-        {
-                return 9;
-        }
-        else
-        {
-                return irq;
-        }
-}
-
 static void __init
 prep_init_IRQ(void)
 {
@@ -970,11 +954,9 @@ prep_init_IRQ(void)
                 openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
                                        i8259_irq);
         }
-        for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ )
-                irq_desc[i].handler = &i8259_pic;
 
         if (have_residual_data) {
-                i8259_init(residual_isapic_addr());
+                i8259_init(residual_isapic_addr(), 0);
                 return;
         }
 
@@ -985,18 +967,18 @@ prep_init_IRQ(void)
         if (((pci_viddid & 0xffff) == PCI_VENDOR_ID_MOTOROLA)
                         && ((pci_did == PCI_DEVICE_ID_MOTOROLA_RAVEN)
                                 || (pci_did == PCI_DEVICE_ID_MOTOROLA_HAWK)))
-                i8259_init(0);
+                i8259_init(0, 0);
         else
                 /* PCI interrupt ack address given in section 6.1.8 of the
                  * PReP specification. */
-                i8259_init(MPC10X_MAPA_PCI_INTACK_ADDR);
+                i8259_init(MPC10X_MAPA_PCI_INTACK_ADDR, 0);
 }
 
 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
 /*
  * IDE stuff.
  */
-static int __prep
+static int
 prep_ide_default_irq(unsigned long base)
 {
         switch (base) {
@@ -1010,7 +992,7 @@ prep_ide_default_irq(unsigned long base)
         }
 }
 
-static unsigned long __prep
+static unsigned long
 prep_ide_default_io_base(int index)
 {
         switch (index) {
@@ -1055,7 +1037,7 @@ smp_prep_setup_cpu(int cpu_nr)
                 do_openpic_setup_cpu();
 }
 
-static struct smp_ops_t prep_smp_ops __prepdata = {
+static struct smp_ops_t prep_smp_ops = {
         smp_openpic_message_pass,
         smp_prep_probe,
         smp_prep_kick_cpu,
@@ -1113,6 +1095,7 @@ prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ISA_DMA_THRESHOLD = 0x00ffffff;
         DMA_MODE_READ = 0x44;
         DMA_MODE_WRITE = 0x48;
+        ppc_do_canonicalize_irqs = 1;
 
         /* figure out what kind of prep workstation we are */
         if (have_residual_data) {
@@ -1139,7 +1122,6 @@ prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_md.setup_arch     = prep_setup_arch;
         ppc_md.show_percpuinfo = prep_show_percpuinfo;
         ppc_md.show_cpuinfo   = NULL; /* set in prep_setup_arch() */
-        ppc_md.irq_canonicalize = prep_irq_canonicalize;
         ppc_md.init_IRQ       = prep_init_IRQ;
         /* this gets changed later on if we have an OpenPIC -- Cort */
         ppc_md.get_irq        = i8259_irq;
@@ -1176,6 +1158,6 @@ prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif
 
 #ifdef CONFIG_SMP
-        ppc_md.smp_ops           = &prep_smp_ops;
+        smp_ops                  = &prep_smp_ops;
 #endif /* CONFIG_SMP */
 }
diff --git a/arch/ppc/platforms/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c
index 0376c8cff5d1..6f97911c330d 100644
--- a/arch/ppc/platforms/radstone_ppc7d.c
+++ b/arch/ppc/platforms/radstone_ppc7d.c
@@ -514,13 +514,9 @@ static void __init ppc7d_init_irq(void)
         int irq;
 
         pr_debug("%s\n", __FUNCTION__);
-        i8259_init(0);
+        i8259_init(0, 0);
         mv64360_init_irq();
 
-        /* IRQ 0..15 are handled by the cascaded 8259's of the Ali1535 */
-        for (irq = 0; irq < 16; irq++) {
-                irq_desc[irq].handler = &i8259_pic;
-        }
         /* IRQs 5,6,9,10,11,14,15 are level sensitive */
         irq_desc[5].status |= IRQ_LEVEL;
         irq_desc[6].status |= IRQ_LEVEL;
@@ -1183,18 +1179,18 @@ static void __init ppc7d_setup_arch(void)
                 ROOT_DEV = Root_HDA1;
 #endif
 
-        if ((cur_cpu_spec[0]->cpu_features & CPU_FTR_SPEC7450) ||
-            (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR))
+        if ((cur_cpu_spec->cpu_features & CPU_FTR_SPEC7450) ||
+            (cur_cpu_spec->cpu_features & CPU_FTR_L3CR))
                 /* 745x is different.  We only want to pass along enable. */
                 _set_L2CR(L2CR_L2E);
-        else if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L2CR)
+        else if (cur_cpu_spec->cpu_features & CPU_FTR_L2CR)
                 /* All modules have 1MB of L2.  We also assume that an
                  * L2 divisor of 3 will work.
                  */
                 _set_L2CR(L2CR_L2E | L2CR_L2SIZ_1MB | L2CR_L2CLK_DIV3
                           | L2CR_L2RAM_PIPE | L2CR_L2OH_1_0 | L2CR_L2DF);
 
-        if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR)
+        if (cur_cpu_spec->cpu_features & CPU_FTR_L3CR)
                 /* No L3 cache */
                 _set_L3CR(0);
 
@@ -1424,6 +1420,7 @@ void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ppc_md.setup_arch = ppc7d_setup_arch;
         ppc_md.init = ppc7d_init2;
         ppc_md.show_cpuinfo = ppc7d_show_cpuinfo;
+        /* XXX this is broken... */
         ppc_md.irq_canonicalize = ppc7d_irq_canonicalize;
         ppc_md.init_IRQ = ppc7d_init_irq;
         ppc_md.get_irq = ppc7d_get_irq;
diff --git a/arch/ppc/platforms/residual.c b/arch/ppc/platforms/residual.c
index 0f84ca603612..c9911601cfdf 100644
--- a/arch/ppc/platforms/residual.c
+++ b/arch/ppc/platforms/residual.c
@@ -47,7 +47,7 @@
 #include <asm/ide.h>
 
 
-unsigned char __res[sizeof(RESIDUAL)] __prepdata = {0,};
+unsigned char __res[sizeof(RESIDUAL)] = {0,};
 RESIDUAL *res = (RESIDUAL *)&__res;
 
 char * PnP_BASE_TYPES[] __initdata = {
diff --git a/arch/ppc/platforms/sandpoint.c b/arch/ppc/platforms/sandpoint.c
index 5232283c1974..9eeed3572309 100644
--- a/arch/ppc/platforms/sandpoint.c
+++ b/arch/ppc/platforms/sandpoint.c
@@ -494,27 +494,10 @@ sandpoint_init_IRQ(void)
                         i8259_irq);
 
         /*
-         * openpic_init() has set up irq_desc[16-31] to be openpic
-         * interrupts.  We need to set irq_desc[0-15] to be i8259
-         * interrupts.
-         */
-        for(i=0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-
-        /*
          * The EPIC allows for a read in the range of 0xFEF00000 ->
          * 0xFEFFFFFF to generate a PCI interrupt-acknowledge transaction.
          */
-        i8259_init(0xfef00000);
-}
-
-static u32
-sandpoint_irq_canonicalize(u32 irq)
-{
-        if (irq == 2)
-                return 9;
-        else
-                return irq;
+        i8259_init(0xfef00000, 0);
 }
 
 static unsigned long __init
@@ -727,10 +710,10 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
         ISA_DMA_THRESHOLD = 0x00ffffff;
         DMA_MODE_READ = 0x44;
         DMA_MODE_WRITE = 0x48;
+        ppc_do_canonicalize_irqs = 1;
 
         ppc_md.setup_arch = sandpoint_setup_arch;
         ppc_md.show_cpuinfo = sandpoint_show_cpuinfo;
-        ppc_md.irq_canonicalize = sandpoint_irq_canonicalize;
         ppc_md.init_IRQ = sandpoint_init_IRQ;
         ppc_md.get_irq = openpic_get_irq;
 
diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
index b8d08f33f7ee..b4ef15b45c4a 100644
--- a/arch/ppc/syslib/Makefile
+++ b/arch/ppc/syslib/Makefile
@@ -31,52 +31,49 @@ obj-$(CONFIG_GEN_RTC)		+= todc_time.o
 obj-$(CONFIG_PPC4xx_DMA)        += ppc4xx_dma.o
 obj-$(CONFIG_PPC4xx_EDMA)       += ppc4xx_sgdma.o
 ifeq ($(CONFIG_40x),y)
-obj-$(CONFIG_PCI)               += indirect_pci.o pci_auto.o ppc405_pci.o
+obj-$(CONFIG_PCI)               += pci_auto.o ppc405_pci.o
 endif
 endif
 obj-$(CONFIG_8xx)               += m8xx_setup.o ppc8xx_pic.o $(wdt-mpc8xx-y) \
                                    ppc_sys.o mpc8xx_devices.o mpc8xx_sys.o
-ifeq ($(CONFIG_8xx),y)
-obj-$(CONFIG_PCI)               += qspan_pci.o i8259.o
-endif
-obj-$(CONFIG_PPC_OF)            += prom_init.o prom.o of_device.o
-obj-$(CONFIG_PPC_PMAC)          += open_pic.o indirect_pci.o
+obj-$(CONFIG_PCI_QSPAN)         += qspan_pci.o
+obj-$(CONFIG_PPC_OF)            += prom_init.o prom.o
+obj-$(CONFIG_PPC_PMAC)          += open_pic.o
 obj-$(CONFIG_POWER4)            += open_pic2.o
-obj-$(CONFIG_PPC_CHRP)          += open_pic.o indirect_pci.o i8259.o
-obj-$(CONFIG_PPC_PREP)          += open_pic.o indirect_pci.o i8259.o todc_time.o
-obj-$(CONFIG_BAMBOO)            += indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_PPC_CHRP)          += open_pic.o
+obj-$(CONFIG_PPC_PREP)          += open_pic.o todc_time.o
+obj-$(CONFIG_BAMBOO)            += pci_auto.o todc_time.o
 obj-$(CONFIG_CPCI690)           += todc_time.o pci_auto.o
-obj-$(CONFIG_EBONY)             += indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_EBONY)             += pci_auto.o todc_time.o
 obj-$(CONFIG_EV64260)           += todc_time.o pci_auto.o
 obj-$(CONFIG_CHESTNUT)          += mv64360_pic.o pci_auto.o
-obj-$(CONFIG_GEMINI)            += open_pic.o indirect_pci.o
+obj-$(CONFIG_GEMINI)            += open_pic.o
 obj-$(CONFIG_GT64260)           += gt64260_pic.o
-obj-$(CONFIG_LOPEC)             += i8259.o pci_auto.o todc_time.o
+obj-$(CONFIG_LOPEC)             += pci_auto.o todc_time.o
 obj-$(CONFIG_HDPU)              += pci_auto.o
-obj-$(CONFIG_LUAN)              += indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_LUAN)              += pci_auto.o todc_time.o
 obj-$(CONFIG_KATANA)            += pci_auto.o
 obj-$(CONFIG_MV64360)           += mv64360_pic.o
-obj-$(CONFIG_MV64X60)           += mv64x60.o mv64x60_win.o indirect_pci.o
-obj-$(CONFIG_MVME5100)          += open_pic.o todc_time.o indirect_pci.o \
+obj-$(CONFIG_MV64X60)           += mv64x60.o mv64x60_win.o
+obj-$(CONFIG_MVME5100)          += open_pic.o todc_time.o \
                                         pci_auto.o hawk_common.o
-obj-$(CONFIG_MVME5100_IPMC761_PRESENT)  += i8259.o
-obj-$(CONFIG_OCOTEA)            += indirect_pci.o pci_auto.o todc_time.o
+obj-$(CONFIG_OCOTEA)            += pci_auto.o todc_time.o
 obj-$(CONFIG_PAL4)              += cpc700_pic.o
 obj-$(CONFIG_POWERPMC250)       += pci_auto.o
-obj-$(CONFIG_PPLUS)             += hawk_common.o open_pic.o i8259.o \
-                                   indirect_pci.o todc_time.o pci_auto.o
-obj-$(CONFIG_PRPMC750)          += open_pic.o indirect_pci.o pci_auto.o \
+obj-$(CONFIG_PPLUS)             += hawk_common.o open_pic.o \
+                                   todc_time.o pci_auto.o
+obj-$(CONFIG_PRPMC750)          += open_pic.o pci_auto.o \
                                         hawk_common.o
 obj-$(CONFIG_HARRIER)           += harrier.o
-obj-$(CONFIG_PRPMC800)          += open_pic.o indirect_pci.o pci_auto.o
-obj-$(CONFIG_RADSTONE_PPC7D)    += i8259.o pci_auto.o
-obj-$(CONFIG_SANDPOINT)         += i8259.o pci_auto.o todc_time.o
+obj-$(CONFIG_PRPMC800)          += open_pic.o pci_auto.o
+obj-$(CONFIG_RADSTONE_PPC7D)    += pci_auto.o
+obj-$(CONFIG_SANDPOINT)         += pci_auto.o todc_time.o
 obj-$(CONFIG_SBC82xx)           += todc_time.o
-obj-$(CONFIG_SPRUCE)            += cpc700_pic.o indirect_pci.o pci_auto.o \
+obj-$(CONFIG_SPRUCE)            += cpc700_pic.o pci_auto.o \
                                    todc_time.o
 obj-$(CONFIG_8260)              += m8260_setup.o pq2_devices.o pq2_sys.o \
                                    ppc_sys.o
-obj-$(CONFIG_PCI_8260)          += m82xx_pci.o indirect_pci.o pci_auto.o
+obj-$(CONFIG_PCI_8260)          += m82xx_pci.o pci_auto.o
 obj-$(CONFIG_8260_PCI9)         += m8260_pci_erratum9.o
 obj-$(CONFIG_CPM2)              += cpm2_common.o cpm2_pic.o
 ifeq ($(CONFIG_PPC_GEN550),y)
@@ -87,20 +84,18 @@ ifeq ($(CONFIG_SERIAL_MPSC_CONSOLE),y)
 obj-$(CONFIG_SERIAL_TEXT_DEBUG) += mv64x60_dbg.o
 endif
 obj-$(CONFIG_BOOTX_TEXT)        += btext.o
-obj-$(CONFIG_MPC10X_BRIDGE)     += mpc10x_common.o indirect_pci.o ppc_sys.o
+obj-$(CONFIG_MPC10X_BRIDGE)     += mpc10x_common.o ppc_sys.o
 obj-$(CONFIG_MPC10X_OPENPIC)    += open_pic.o
-obj-$(CONFIG_40x)               += dcr.o
-obj-$(CONFIG_BOOKE)             += dcr.o
 obj-$(CONFIG_85xx)              += open_pic.o ppc85xx_common.o ppc85xx_setup.o \
-                                        ppc_sys.o i8259.o mpc85xx_sys.o \
+                                        ppc_sys.o mpc85xx_sys.o \
                                         mpc85xx_devices.o
 ifeq ($(CONFIG_85xx),y)
-obj-$(CONFIG_PCI)               += indirect_pci.o pci_auto.o
+obj-$(CONFIG_PCI)               += pci_auto.o
 endif
 obj-$(CONFIG_83xx)              += ipic.o ppc83xx_setup.o ppc_sys.o \
                                         mpc83xx_sys.o mpc83xx_devices.o
 ifeq ($(CONFIG_83xx),y)
-obj-$(CONFIG_PCI)               += indirect_pci.o pci_auto.o
+obj-$(CONFIG_PCI)               += pci_auto.o
 endif
 obj-$(CONFIG_MPC8548_CDS)       += todc_time.o
 obj-$(CONFIG_MPC8555_CDS)       += todc_time.o
diff --git a/arch/ppc/syslib/btext.c b/arch/ppc/syslib/btext.c
index 7734f6836174..12fa83e6774a 100644
--- a/arch/ppc/syslib/btext.c
+++ b/arch/ppc/syslib/btext.c
@@ -53,8 +53,8 @@ extern char *klimit;
  * chrp only uses it during early boot.
  */
 #ifdef CONFIG_XMON
-#define BTEXT   __pmac
-#define BTDATA  __pmacdata
+#define BTEXT
+#define BTDATA
 #else
 #define BTEXT   __init
 #define BTDATA  __initdata
@@ -187,7 +187,7 @@ btext_setup_display(int width, int height, int depth, int pitch,
  *    changes.
  */
 
-void __openfirmware
+void
 map_boot_text(void)
 {
         unsigned long base, offset, size;
diff --git a/arch/ppc/syslib/gt64260_pic.c b/arch/ppc/syslib/gt64260_pic.c
index 44aa87385451..f97b3a9abd1e 100644
--- a/arch/ppc/syslib/gt64260_pic.c
+++ b/arch/ppc/syslib/gt64260_pic.c
@@ -45,6 +45,7 @@
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/mv64x60.h>
+#include <asm/machdep.h>
 
 #define CPU_INTR_STR    "gt64260 cpu interface error"
 #define PCI0_INTR_STR   "gt64260 pci 0 error"
diff --git a/arch/ppc/syslib/ibm440gx_common.c b/arch/ppc/syslib/ibm440gx_common.c
index 0bb919859b8b..c36db279b43d 100644
--- a/arch/ppc/syslib/ibm440gx_common.c
+++ b/arch/ppc/syslib/ibm440gx_common.c
@@ -236,9 +236,9 @@ void __init ibm440gx_l2c_setup(struct ibm44x_clocks* p)
         /* Disable L2C on rev.A, rev.B and 800MHz version of rev.C,
            enable it on all other revisions
          */
-        if (strcmp(cur_cpu_spec[0]->cpu_name, "440GX Rev. A") == 0 ||
-                        strcmp(cur_cpu_spec[0]->cpu_name, "440GX Rev. B") == 0
-                        || (strcmp(cur_cpu_spec[0]->cpu_name, "440GX Rev. C")
+        if (strcmp(cur_cpu_spec->cpu_name, "440GX Rev. A") == 0 ||
+                        strcmp(cur_cpu_spec->cpu_name, "440GX Rev. B") == 0
+                        || (strcmp(cur_cpu_spec->cpu_name, "440GX Rev. C")
                                 == 0 && p->cpu > 667000000))
                 ibm440gx_l2c_disable();
         else
diff --git a/arch/ppc/syslib/ibm44x_common.c b/arch/ppc/syslib/ibm44x_common.c
index 7612e0623f99..5152c8e41340 100644
--- a/arch/ppc/syslib/ibm44x_common.c
+++ b/arch/ppc/syslib/ibm44x_common.c
@@ -27,9 +27,14 @@
 #include <asm/time.h>
 #include <asm/ppc4xx_pic.h>
 #include <asm/param.h>
+#include <asm/bootinfo.h>
+#include <asm/ppcboot.h>
 
 #include <syslib/gen550.h>
 
+/* Global Variables */
+bd_t __res;
+
 phys_addr_t fixup_bigphys_addr(phys_addr_t addr, phys_addr_t size)
 {
         phys_addr_t page_4gb = 0;
@@ -150,8 +155,36 @@ static unsigned long __init ibm44x_find_end_of_memory(void)
         return mem_size;
 }
 
-void __init ibm44x_platform_init(void)
+void __init ibm44x_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+                                 unsigned long r6, unsigned long r7)
 {
+        parse_bootinfo(find_bootinfo());
+
+        /*
+         * If we were passed in a board information, copy it into the
+         * residual data area.
+         */
+        if (r3)
+                __res = *(bd_t *)(r3 + KERNELBASE);
+
+#if defined(CONFIG_BLK_DEV_INITRD)
+        /*
+         * If the init RAM disk has been configured in, and there's a valid
+         * starting address for it, set it up.
+         */
+        if (r4) {
+                initrd_start = r4 + KERNELBASE;
+                initrd_end = r5 + KERNELBASE;
+        }
+#endif  /* CONFIG_BLK_DEV_INITRD */
+
+        /* Copy the kernel command line arguments to a safe place. */
+
+        if (r6) {
+                *(char *) (r7 + KERNELBASE) = 0;
+                strcpy(cmd_line, (char *) (r6 + KERNELBASE));
+        }
+
         ppc_md.init_IRQ = ppc4xx_pic_init;
         ppc_md.find_end_of_memory = ibm44x_find_end_of_memory;
         ppc_md.restart = ibm44x_restart;
@@ -178,7 +211,7 @@ void __init ibm44x_platform_init(void)
 #endif
 }
 
-/* Called from MachineCheckException */
+/* Called from machine_check_exception */
 void platform_machine_check(struct pt_regs *regs)
 {
         printk("PLB0: BEAR=0x%08x%08x ACR=  0x%08x BESR= 0x%08x\n",
diff --git a/arch/ppc/syslib/ibm44x_common.h b/arch/ppc/syslib/ibm44x_common.h
index c16b6a5ac6ab..b25a8995e4e9 100644
--- a/arch/ppc/syslib/ibm44x_common.h
+++ b/arch/ppc/syslib/ibm44x_common.h
@@ -36,7 +36,8 @@ struct ibm44x_clocks {
 };
 
 /* common 44x platform init */
-void ibm44x_platform_init(void) __init;
+void ibm44x_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+                          unsigned long r6, unsigned long r7) __init;
 
 /* initialize decrementer and tick-related variables */
 void ibm44x_calibrate_decr(unsigned int freq) __init;
diff --git a/arch/ppc/syslib/m8260_setup.c b/arch/ppc/syslib/m8260_setup.c
index 8f80a42dfdb7..76a2aa4ce65e 100644
--- a/arch/ppc/syslib/m8260_setup.c
+++ b/arch/ppc/syslib/m8260_setup.c
@@ -62,6 +62,10 @@ m8260_setup_arch(void)
         if (initrd_start)
                 ROOT_DEV = Root_RAM0;
 #endif
+
+        identify_ppc_sys_by_name_and_id(BOARD_CHIP_NAME,
+                                in_be32(CPM_MAP_ADDR + CPM_IMMR_OFFSET));
+
         m82xx_board_setup();
 }
 
diff --git a/arch/ppc/syslib/m82xx_pci.c b/arch/ppc/syslib/m82xx_pci.c
index 9db58c587b46..1d1c3956c1ae 100644
--- a/arch/ppc/syslib/m82xx_pci.c
+++ b/arch/ppc/syslib/m82xx_pci.c
@@ -302,11 +302,11 @@ pq2ads_setup_pci(struct pci_controller *hose)
 
 void __init pq2_find_bridges(void)
 {
-        extern int pci_assign_all_busses;
+        extern int pci_assign_all_buses;
         struct pci_controller * hose;
         int host_bridge;
 
-        pci_assign_all_busses = 1;
+        pci_assign_all_buses = 1;
 
         hose = pcibios_alloc_controller();
 
diff --git a/arch/ppc/syslib/m8xx_setup.c b/arch/ppc/syslib/m8xx_setup.c
index 4c888da89b3c..97ffbc70574f 100644
--- a/arch/ppc/syslib/m8xx_setup.c
+++ b/arch/ppc/syslib/m8xx_setup.c
@@ -144,12 +144,12 @@ void __init m8xx_calibrate_decr(void)
         int freq, fp, divisor;
 
         /* Unlock the SCCR. */
-        ((volatile immap_t *)IMAP_ADDR)->im_clkrstk.cark_sccrk = ~KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_clkrstk.cark_sccrk = KAPWR_KEY;
+        out_be32(&((immap_t *)IMAP_ADDR)->im_clkrstk.cark_sccrk, ~KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_clkrstk.cark_sccrk, KAPWR_KEY);
 
         /* Force all 8xx processors to use divide by 16 processor clock. */
-        ((volatile immap_t *)IMAP_ADDR)->im_clkrst.car_sccr |= 0x02000000;
-
+        out_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_sccr,
+                in_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_sccr)|0x02000000);
         /* Processor frequency is MHz.
          * The value 'fp' is the number of decrementer ticks per second.
          */
@@ -175,28 +175,24 @@ void __init m8xx_calibrate_decr(void)
          * we guarantee the registers are locked, then we unlock them
          * for our use.
          */
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_tbscrk = ~KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_rtcsck = ~KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_tbk    = ~KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_tbscrk =  KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_rtcsck =  KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_tbk    =  KAPWR_KEY;
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_tbscrk, ~KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_rtcsck, ~KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_tbk, ~KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_tbscrk, KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_rtcsck, KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_tbk, KAPWR_KEY);
 
         /* Disable the RTC one second and alarm interrupts. */
-        ((volatile immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc &=
-                                                ~(RTCSC_SIE | RTCSC_ALE);
+        out_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc, in_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc) & ~(RTCSC_SIE | RTCSC_ALE));
         /* Enable the RTC */
-        ((volatile immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc |=
-                                                (RTCSC_RTF | RTCSC_RTE);
+        out_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc, in_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtcsc) | (RTCSC_RTF | RTCSC_RTE));
 
         /* Enabling the decrementer also enables the timebase interrupts
          * (or from the other point of view, to get decrementer interrupts
          * we have to enable the timebase).  The decrementer interrupt
          * is wired into the vector table, nothing to do here for that.
          */
-        ((volatile immap_t *)IMAP_ADDR)->im_sit.sit_tbscr =
-                                ((mk_int_int_mask(DEC_INTERRUPT) << 8) |
-                                         (TBSCR_TBF | TBSCR_TBE));
+        out_be16(&((immap_t *)IMAP_ADDR)->im_sit.sit_tbscr, (mk_int_int_mask(DEC_INTERRUPT) << 8) | (TBSCR_TBF | TBSCR_TBE));
 
         if (setup_irq(DEC_INTERRUPT, &tbint_irqaction))
                 panic("Could not allocate timer IRQ!");
@@ -216,9 +212,9 @@ void __init m8xx_calibrate_decr(void)
 static int
 m8xx_set_rtc_time(unsigned long time)
 {
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_rtck = KAPWR_KEY;
-        ((volatile immap_t *)IMAP_ADDR)->im_sit.sit_rtc = time;
-        ((volatile immap_t *)IMAP_ADDR)->im_sitk.sitk_rtck = ~KAPWR_KEY;
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_rtck, KAPWR_KEY);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtc, time);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_sitk.sitk_rtck, ~KAPWR_KEY);
         return(0);
 }
 
@@ -226,7 +222,7 @@ static unsigned long
 m8xx_get_rtc_time(void)
 {
         /* Get time from the RTC. */
-        return((unsigned long)(((immap_t *)IMAP_ADDR)->im_sit.sit_rtc));
+        return (unsigned long) in_be32(&((immap_t *)IMAP_ADDR)->im_sit.sit_rtc);
 }
 
 static void
@@ -235,13 +231,13 @@ m8xx_restart(char *cmd)
         __volatile__ unsigned char dummy;
 
         local_irq_disable();
-        ((immap_t *)IMAP_ADDR)->im_clkrst.car_plprcr |= 0x00000080;
+        out_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_plprcr, in_be32(&((immap_t *)IMAP_ADDR)->im_clkrst.car_plprcr) | 0x00000080);
 
         /* Clear the ME bit in MSR to cause checkstop on machine check
         */
         mtmsr(mfmsr() & ~0x1000);
 
-        dummy = ((immap_t *)IMAP_ADDR)->im_clkrst.res[0];
+        dummy = in_8(&((immap_t *)IMAP_ADDR)->im_clkrst.res[0]);
         printk("Restart failed\n");
         while(1);
 }
@@ -306,8 +302,7 @@ m8xx_init_IRQ(void)
         i8259_init(0);
 
         /* The i8259 cascade interrupt must be level sensitive. */
-        ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel &=
-                ~(0x80000000 >> ISA_BRIDGE_INT);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel, in_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel & ~(0x80000000 >> ISA_BRIDGE_INT)));
 
         if (setup_irq(ISA_BRIDGE_INT, &mbx_i8259_irqaction))
                 enable_irq(ISA_BRIDGE_INT);
@@ -404,9 +399,10 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
                 strcpy(cmd_line, (char *)(r6+KERNELBASE));
         }
 
+        identify_ppc_sys_by_name(BOARD_CHIP_NAME);
+
         ppc_md.setup_arch               = m8xx_setup_arch;
         ppc_md.show_percpuinfo          = m8xx_show_percpuinfo;
-        ppc_md.irq_canonicalize = NULL;
         ppc_md.init_IRQ                 = m8xx_init_IRQ;
         ppc_md.get_irq                  = m8xx_get_irq;
         ppc_md.init                     = NULL;
diff --git a/arch/ppc/syslib/m8xx_wdt.c b/arch/ppc/syslib/m8xx_wdt.c
index 2ddc857e7fc7..c5ac5ce5d7d2 100644
--- a/arch/ppc/syslib/m8xx_wdt.c
+++ b/arch/ppc/syslib/m8xx_wdt.c
@@ -29,8 +29,8 @@ void m8xx_wdt_reset(void)
 {
         volatile immap_t *imap = (volatile immap_t *)IMAP_ADDR;
 
-        imap->im_siu_conf.sc_swsr = 0x556c;     /* write magic1 */
-        imap->im_siu_conf.sc_swsr = 0xaa39;     /* write magic2 */
+        out_be16(imap->im_siu_conf.sc_swsr, 0x556c);    /* write magic1 */
+        out_be16(imap->im_siu_conf.sc_swsr, 0xaa39);    /* write magic2 */
 }
 
 static irqreturn_t m8xx_wdt_interrupt(int irq, void *dev, struct pt_regs *regs)
@@ -39,7 +39,7 @@ static irqreturn_t m8xx_wdt_interrupt(int irq, void *dev, struct pt_regs *regs)
 
         m8xx_wdt_reset();
 
-        imap->im_sit.sit_piscr |= PISCR_PS;     /* clear irq */
+        out_be16(imap->im_sit.sit_piscr, in_be16(imap->im_sit.sit_piscr | PISCR_PS));   /* clear irq */
 
         return IRQ_HANDLED;
 }
@@ -51,7 +51,7 @@ void __init m8xx_wdt_handler_install(bd_t * binfo)
         u32 sypcr;
         u32 pitrtclk;
 
-        sypcr = imap->im_siu_conf.sc_sypcr;
+        sypcr = in_be32(imap->im_siu_conf.sc_sypcr);
 
         if (!(sypcr & 0x04)) {
                 printk(KERN_NOTICE "m8xx_wdt: wdt disabled (SYPCR: 0x%08X)\n",
@@ -87,9 +87,9 @@ void __init m8xx_wdt_handler_install(bd_t * binfo)
         else
                 pitc = pitrtclk * wdt_timeout / binfo->bi_intfreq / 2;
 
-        imap->im_sit.sit_pitc = pitc << 16;
-        imap->im_sit.sit_piscr =
-            (mk_int_int_mask(PIT_INTERRUPT) << 8) | PISCR_PIE | PISCR_PTE;
+        out_be32(imap->im_sit.sit_pitc, pitc << 16);
+
+        out_be16(imap->im_sit.sit_piscr, (mk_int_int_mask(PIT_INTERRUPT) << 8) | PISCR_PIE | PISCR_PTE);
 
         if (setup_irq(PIT_INTERRUPT, &m8xx_wdt_irqaction))
                 panic("m8xx_wdt: error setting up the watchdog irq!");
diff --git a/arch/ppc/syslib/mpc52xx_pci.c b/arch/ppc/syslib/mpc52xx_pci.c
index 59cf3e8bd1a0..4ac19080eb85 100644
--- a/arch/ppc/syslib/mpc52xx_pci.c
+++ b/arch/ppc/syslib/mpc52xx_pci.c
@@ -21,6 +21,7 @@
 #include "mpc52xx_pci.h"
 
 #include <asm/delay.h>
+#include <asm/machdep.h>
 
 
 static int
@@ -181,7 +182,7 @@ mpc52xx_find_bridges(void)
         struct mpc52xx_pci __iomem *pci_regs;
         struct pci_controller *hose;
 
-        pci_assign_all_busses = 1;
+        pci_assign_all_buses = 1;
 
         pci_regs = ioremap(MPC52xx_PA(MPC52xx_PCI_OFFSET), MPC52xx_PCI_SIZE);
         if (!pci_regs)
diff --git a/arch/ppc/syslib/mpc83xx_devices.c b/arch/ppc/syslib/mpc83xx_devices.c
index 95b3b8a7f0ba..dbf8acac507f 100644
--- a/arch/ppc/syslib/mpc83xx_devices.c
+++ b/arch/ppc/syslib/mpc83xx_devices.c
@@ -21,6 +21,7 @@
 #include <asm/mpc83xx.h>
 #include <asm/irq.h>
 #include <asm/ppc_sys.h>
+#include <asm/machdep.h>
 
 /* We use offsets for IORESOURCE_MEM since we do not know at compile time
  * what IMMRBAR is, will get fixed up by mach_mpc83xx_fixup
diff --git a/arch/ppc/syslib/mpc85xx_devices.c b/arch/ppc/syslib/mpc85xx_devices.c
index bbc5ac0de878..2ede677a0a53 100644
--- a/arch/ppc/syslib/mpc85xx_devices.c
+++ b/arch/ppc/syslib/mpc85xx_devices.c
@@ -25,19 +25,20 @@
 /* We use offsets for IORESOURCE_MEM since we do not know at compile time
  * what CCSRBAR is, will get fixed up by mach_mpc85xx_fixup
  */
+struct gianfar_mdio_data mpc85xx_mdio_pdata = {
+        .paddr = MPC85xx_MIIM_OFFSET,
+};
 
 static struct gianfar_platform_data mpc85xx_tsec1_pdata = {
         .device_flags = FSL_GIANFAR_DEV_HAS_GIGABIT |
             FSL_GIANFAR_DEV_HAS_COALESCE | FSL_GIANFAR_DEV_HAS_RMON |
             FSL_GIANFAR_DEV_HAS_MULTI_INTR,
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
 };
 
 static struct gianfar_platform_data mpc85xx_tsec2_pdata = {
         .device_flags = FSL_GIANFAR_DEV_HAS_GIGABIT |
             FSL_GIANFAR_DEV_HAS_COALESCE | FSL_GIANFAR_DEV_HAS_RMON |
             FSL_GIANFAR_DEV_HAS_MULTI_INTR,
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
 };
 
 static struct gianfar_platform_data mpc85xx_etsec1_pdata = {
@@ -46,7 +47,6 @@ static struct gianfar_platform_data mpc85xx_etsec1_pdata = {
             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
             FSL_GIANFAR_DEV_HAS_CSUM | FSL_GIANFAR_DEV_HAS_VLAN |
             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH,
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
 };
 
 static struct gianfar_platform_data mpc85xx_etsec2_pdata = {
@@ -55,7 +55,6 @@ static struct gianfar_platform_data mpc85xx_etsec2_pdata = {
             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
             FSL_GIANFAR_DEV_HAS_CSUM | FSL_GIANFAR_DEV_HAS_VLAN |
             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH,
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
 };
 
 static struct gianfar_platform_data mpc85xx_etsec3_pdata = {
@@ -64,7 +63,6 @@ static struct gianfar_platform_data mpc85xx_etsec3_pdata = {
             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
             FSL_GIANFAR_DEV_HAS_CSUM | FSL_GIANFAR_DEV_HAS_VLAN |
             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH,
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
 };
 
 static struct gianfar_platform_data mpc85xx_etsec4_pdata = {
@@ -73,11 +71,10 @@ static struct gianfar_platform_data mpc85xx_etsec4_pdata = {
             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
             FSL_GIANFAR_DEV_HAS_CSUM | FSL_GIANFAR_DEV_HAS_VLAN |
             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH,
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
 };
 
 static struct gianfar_platform_data mpc85xx_fec_pdata = {
-        .phy_reg_addr = MPC85xx_ENET1_OFFSET,
+        .device_flags = 0,
 };
 
 static struct fsl_i2c_platform_data mpc85xx_fsl_i2c_pdata = {
@@ -719,6 +716,12 @@ struct platform_device ppc_sys_platform_devices[] = {
                         },
                 },
         },
+        [MPC85xx_MDIO] = {
+                .name = "fsl-gianfar_mdio",
+                .id = 0,
+                .dev.platform_data = &mpc85xx_mdio_pdata,
+                .num_resources = 0,
+        },
 };
 
 static int __init mach_mpc85xx_fixup(struct platform_device *pdev)
diff --git a/arch/ppc/syslib/mpc85xx_sys.c b/arch/ppc/syslib/mpc85xx_sys.c
index 6e3184ab354f..cb68d8c58348 100644
--- a/arch/ppc/syslib/mpc85xx_sys.c
+++ b/arch/ppc/syslib/mpc85xx_sys.c
@@ -24,19 +24,19 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                 .ppc_sys_name   = "8540",
                 .mask           = 0xFFFF0000,
                 .value          = 0x80300000,
-                .num_devices    = 10,
+                .num_devices    = 11,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_TSEC1, MPC85xx_TSEC2, MPC85xx_FEC, MPC85xx_IIC1,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
-                        MPC85xx_PERFMON, MPC85xx_DUART,
+                        MPC85xx_PERFMON, MPC85xx_DUART, MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8560",
                 .mask           = 0xFFFF0000,
                 .value          = 0x80700000,
-                .num_devices    = 19,
+                .num_devices    = 20,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_TSEC1, MPC85xx_TSEC2, MPC85xx_IIC1,
@@ -45,14 +45,14 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                         MPC85xx_CPM_SPI, MPC85xx_CPM_I2C, MPC85xx_CPM_SCC1,
                         MPC85xx_CPM_SCC2, MPC85xx_CPM_SCC3, MPC85xx_CPM_SCC4,
                         MPC85xx_CPM_FCC1, MPC85xx_CPM_FCC2, MPC85xx_CPM_FCC3,
-                        MPC85xx_CPM_MCC1, MPC85xx_CPM_MCC2,
+                        MPC85xx_CPM_MCC1, MPC85xx_CPM_MCC2, MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8541",
                 .mask           = 0xFFFF0000,
                 .value          = 0x80720000,
-                .num_devices    = 13,
+                .num_devices    = 14,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_TSEC1, MPC85xx_TSEC2, MPC85xx_IIC1,
@@ -60,13 +60,14 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                         MPC85xx_PERFMON, MPC85xx_DUART,
                         MPC85xx_CPM_SPI, MPC85xx_CPM_I2C,
                         MPC85xx_CPM_FCC1, MPC85xx_CPM_FCC2,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8541E",
                 .mask           = 0xFFFF0000,
                 .value          = 0x807A0000,
-                .num_devices    = 14,
+                .num_devices    = 15,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_TSEC1, MPC85xx_TSEC2, MPC85xx_IIC1,
@@ -74,13 +75,14 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                         MPC85xx_PERFMON, MPC85xx_DUART, MPC85xx_SEC2,
                         MPC85xx_CPM_SPI, MPC85xx_CPM_I2C,
                         MPC85xx_CPM_FCC1, MPC85xx_CPM_FCC2,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8555",
                 .mask           = 0xFFFF0000,
                 .value          = 0x80710000,
-                .num_devices    = 19,
+                .num_devices    = 20,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_TSEC1, MPC85xx_TSEC2, MPC85xx_IIC1,
@@ -91,13 +93,14 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                         MPC85xx_CPM_FCC1, MPC85xx_CPM_FCC2,
                         MPC85xx_CPM_SMC1, MPC85xx_CPM_SMC2,
                         MPC85xx_CPM_USB,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8555E",
                 .mask           = 0xFFFF0000,
                 .value          = 0x80790000,
-                .num_devices    = 20,
+                .num_devices    = 21,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_TSEC1, MPC85xx_TSEC2, MPC85xx_IIC1,
@@ -108,6 +111,7 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                         MPC85xx_CPM_FCC1, MPC85xx_CPM_FCC2,
                         MPC85xx_CPM_SMC1, MPC85xx_CPM_SMC2,
                         MPC85xx_CPM_USB,
+                        MPC85xx_MDIO,
                 },
         },
         /* SVRs on 8548 rev1.0 matches for 8548/8547/8545 */
@@ -115,104 +119,112 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                 .ppc_sys_name   = "8548E",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80390010,
-                .num_devices    = 13,
+                .num_devices    = 14,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2, MPC85xx_eTSEC3,
                         MPC85xx_eTSEC4, MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART, MPC85xx_SEC2,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8548",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80310010,
-                .num_devices    = 12,
+                .num_devices    = 13,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2, MPC85xx_eTSEC3,
                         MPC85xx_eTSEC4, MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8547E",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80390010,
-                .num_devices    = 13,
+                .num_devices    = 14,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2, MPC85xx_eTSEC3,
                         MPC85xx_eTSEC4, MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART, MPC85xx_SEC2,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8547",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80310010,
-                .num_devices    = 12,
+                .num_devices    = 13,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2, MPC85xx_eTSEC3,
                         MPC85xx_eTSEC4, MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8545E",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80390010,
-                .num_devices    = 11,
+                .num_devices    = 12,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2,
                         MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART, MPC85xx_SEC2,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8545",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80310010,
-                .num_devices    = 10,
+                .num_devices    = 11,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2,
                         MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8543E",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x803A0010,
-                .num_devices    = 11,
+                .num_devices    = 12,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2,
                         MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART, MPC85xx_SEC2,
+                        MPC85xx_MDIO,
                 },
         },
         {
                 .ppc_sys_name   = "8543",
                 .mask           = 0xFFFF00F0,
                 .value          = 0x80320010,
-                .num_devices    = 10,
+                .num_devices    = 11,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC85xx_eTSEC1, MPC85xx_eTSEC2,
                         MPC85xx_IIC1, MPC85xx_IIC2,
                         MPC85xx_DMA0, MPC85xx_DMA1, MPC85xx_DMA2, MPC85xx_DMA3,
                         MPC85xx_PERFMON, MPC85xx_DUART,
+                        MPC85xx_MDIO,
                 },
         },
         {       /* default match */
diff --git a/arch/ppc/syslib/mpc8xx_sys.c b/arch/ppc/syslib/mpc8xx_sys.c
index a532ccc861c0..3cc27d29e3af 100644
--- a/arch/ppc/syslib/mpc8xx_sys.c
+++ b/arch/ppc/syslib/mpc8xx_sys.c
@@ -24,7 +24,7 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                 .ppc_sys_name   = "MPC86X",
                 .mask           = 0xFFFFFFFF,
                 .value          = 0x00000000,
-                .num_devices    = 2,
+                .num_devices    = 7,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC8xx_CPM_FEC1,
@@ -40,7 +40,7 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                 .ppc_sys_name   = "MPC885",
                 .mask           = 0xFFFFFFFF,
                 .value          = 0x00000000,
-                .num_devices    = 3,
+                .num_devices    = 8,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC8xx_CPM_FEC1,
diff --git a/arch/ppc/syslib/mv64360_pic.c b/arch/ppc/syslib/mv64360_pic.c
index 8356da4678a2..58b0aa813e85 100644
--- a/arch/ppc/syslib/mv64360_pic.c
+++ b/arch/ppc/syslib/mv64360_pic.c
@@ -48,6 +48,7 @@
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/mv64x60.h>
+#include <asm/machdep.h>
 
 #ifdef CONFIG_IRQ_ALL_CPUS
 #error "The mv64360 does not support distribution of IRQs on all CPUs"
diff --git a/arch/ppc/syslib/mv64x60.c b/arch/ppc/syslib/mv64x60.c
index 4849850a59ed..a781c50d2f4c 100644
--- a/arch/ppc/syslib/mv64x60.c
+++ b/arch/ppc/syslib/mv64x60.c
@@ -1304,7 +1304,7 @@ mv64x60_config_pci_params(struct pci_controller *hose,
         early_write_config_word(hose, 0, devfn, PCI_COMMAND, u16_val);
 
         /* Set latency timer, cache line size, clear BIST */
-        u16_val = (pi->latency_timer << 8) | (L1_CACHE_LINE_SIZE >> 2);
+        u16_val = (pi->latency_timer << 8) | (L1_CACHE_BYTES >> 2);
         early_write_config_word(hose, 0, devfn, PCI_CACHE_LINE_SIZE, u16_val);
 
         mv64x60_pci_exclude_bridge = save_exclude;
diff --git a/arch/ppc/syslib/mv64x60_dbg.c b/arch/ppc/syslib/mv64x60_dbg.c
index 2927c7adf5e5..fa5b2e45e0ca 100644
--- a/arch/ppc/syslib/mv64x60_dbg.c
+++ b/arch/ppc/syslib/mv64x60_dbg.c
@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <asm/delay.h>
 #include <asm/mv64x60.h>
+#include <asm/machdep.h>
 
 
 #if defined(CONFIG_SERIAL_TEXT_DEBUG)
diff --git a/arch/ppc/syslib/of_device.c b/arch/ppc/syslib/of_device.c
deleted file mode 100644
index 93c7231ea709..000000000000
--- a/arch/ppc/syslib/of_device.c
+++ /dev/null
@@ -1,276 +0,0 @@
-#include <linux/config.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <asm/errno.h>
-#include <asm/of_device.h>
-
-/**
- * of_match_device - Tell if an of_device structure has a matching
- * of_match structure
- * @ids: array of of device match structures to search in
- * @dev: the of device structure to match against
- *
- * Used by a driver to check whether an of_device present in the
- * system is in its list of supported devices.
- */
-const struct of_device_id * of_match_device(const struct of_device_id *matches,
-                                        const struct of_device *dev)
-{
-        if (!dev->node)
-                return NULL;
-        while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
-                int match = 1;
-                if (matches->name[0])
-                        match &= dev->node->name
-                                && !strcmp(matches->name, dev->node->name);
-                if (matches->type[0])
-                        match &= dev->node->type
-                                && !strcmp(matches->type, dev->node->type);
-                if (matches->compatible[0])
-                        match &= device_is_compatible(dev->node,
-                                matches->compatible);
-                if (match)
-                        return matches;
-                matches++;
-        }
-        return NULL;
-}
-
-static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
-{
-        struct of_device * of_dev = to_of_device(dev);
-        struct of_platform_driver * of_drv = to_of_platform_driver(drv);
-        const struct of_device_id * matches = of_drv->match_table;
-
-        if (!matches)
-                return 0;
-
-        return of_match_device(matches, of_dev) != NULL;
-}
-
-struct of_device *of_dev_get(struct of_device *dev)
-{
-        struct device *tmp;
-
-        if (!dev)
-                return NULL;
-        tmp = get_device(&dev->dev);
-        if (tmp)
-                return to_of_device(tmp);
-        else
-                return NULL;
-}
-
-void of_dev_put(struct of_device *dev)
-{
-        if (dev)
-                put_device(&dev->dev);
-}
-
-
-static int of_device_probe(struct device *dev)
-{
-        int error = -ENODEV;
-        struct of_platform_driver *drv;
-        struct of_device *of_dev;
-        const struct of_device_id *match;
-
-        drv = to_of_platform_driver(dev->driver);
-        of_dev = to_of_device(dev);
-
-        if (!drv->probe)
-                return error;
-
-        of_dev_get(of_dev);
-
-        match = of_match_device(drv->match_table, of_dev);
-        if (match)
-                error = drv->probe(of_dev, match);
-        if (error)
-                of_dev_put(of_dev);
-
-        return error;
-}
-
-static int of_device_remove(struct device *dev)
-{
-        struct of_device * of_dev = to_of_device(dev);
-        struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
-
-        if (dev->driver && drv->remove)
-                drv->remove(of_dev);
-        return 0;
-}
-
-static int of_device_suspend(struct device *dev, pm_message_t state)
-{
-        struct of_device * of_dev = to_of_device(dev);
-        struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
-        int error = 0;
-
-        if (dev->driver && drv->suspend)
-                error = drv->suspend(of_dev, state);
-        return error;
-}
-
-static int of_device_resume(struct device * dev)
-{
-        struct of_device * of_dev = to_of_device(dev);
-        struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
-        int error = 0;
-
-        if (dev->driver && drv->resume)
-                error = drv->resume(of_dev);
-        return error;
-}
-
-struct bus_type of_platform_bus_type = {
-       .name    = "of_platform",
-       .match   = of_platform_bus_match,
-       .suspend = of_device_suspend,
-       .resume  = of_device_resume,
-};
-
-static int __init of_bus_driver_init(void)
-{
-        return bus_register(&of_platform_bus_type);
-}
-
-postcore_initcall(of_bus_driver_init);
-
-int of_register_driver(struct of_platform_driver *drv)
-{
-        int count = 0;
-
-        /* initialize common driver fields */
-        drv->driver.name = drv->name;
-        drv->driver.bus = &of_platform_bus_type;
-        drv->driver.probe = of_device_probe;
-        drv->driver.remove = of_device_remove;
-
-        /* register with core */
-        count = driver_register(&drv->driver);
-        return count ? count : 1;
-}
-
-void of_unregister_driver(struct of_platform_driver *drv)
-{
-        driver_unregister(&drv->driver);
-}
-
-
-static ssize_t dev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf)
-{
-        struct of_device *ofdev;
-
-        ofdev = to_of_device(dev);
-        return sprintf(buf, "%s", ofdev->node->full_name);
-}
-
-static DEVICE_ATTR(devspec, S_IRUGO, dev_show_devspec, NULL);
-
-/**
- * of_release_dev - free an of device structure when all users of it are finished.
- * @dev: device that's been disconnected
- *
- * Will be called only by the device core when all users of this of device are
- * done.
- */
-void of_release_dev(struct device *dev)
-{
-        struct of_device *ofdev;
-
-        ofdev = to_of_device(dev);
-        of_node_put(ofdev->node);
-        kfree(ofdev);
-}
-
-int of_device_register(struct of_device *ofdev)
-{
-        int rc;
-        struct of_device **odprop;
-
-        BUG_ON(ofdev->node == NULL);
-
-        odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
-        if (!odprop) {
-                struct property *new_prop;
-        
-                new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *),
-                        GFP_KERNEL);
-                if (new_prop == NULL)
-                        return -ENOMEM;
-                new_prop->name = "linux,device";
-                new_prop->length = sizeof(sizeof(struct of_device *));
-                new_prop->value = (unsigned char *)&new_prop[1];
-                odprop = (struct of_device **)new_prop->value;
-                *odprop = NULL;
-                prom_add_property(ofdev->node, new_prop);
-        }
-        *odprop = ofdev;
-
-        rc = device_register(&ofdev->dev);
-        if (rc)
-                return rc;
-
-        device_create_file(&ofdev->dev, &dev_attr_devspec);
-
-        return 0;
-}
-
-void of_device_unregister(struct of_device *ofdev)
-{
-        struct of_device **odprop;
-
-        device_remove_file(&ofdev->dev, &dev_attr_devspec);
-
-        odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
-        if (odprop)
-                *odprop = NULL;
-
-        device_unregister(&ofdev->dev);
-}
-
-struct of_device* of_platform_device_create(struct device_node *np,
-                                            const char *bus_id,
-                                            struct device *parent)
-{
-        struct of_device *dev;
-        u32 *reg;
-
-        dev = kmalloc(sizeof(*dev), GFP_KERNEL);
-        if (!dev)
-                return NULL;
-        memset(dev, 0, sizeof(*dev));
-
-        dev->node = of_node_get(np);
-        dev->dma_mask = 0xffffffffUL;
-        dev->dev.dma_mask = &dev->dma_mask;
-        dev->dev.parent = parent;
-        dev->dev.bus = &of_platform_bus_type;
-        dev->dev.release = of_release_dev;
-
-        reg = (u32 *)get_property(np, "reg", NULL);
-        strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
-
-        if (of_device_register(dev) != 0) {
-                kfree(dev);
-                return NULL;
-        }
-
-        return dev;
-}
-
-EXPORT_SYMBOL(of_match_device);
-EXPORT_SYMBOL(of_platform_bus_type);
-EXPORT_SYMBOL(of_register_driver);
-EXPORT_SYMBOL(of_unregister_driver);
-EXPORT_SYMBOL(of_device_register);
-EXPORT_SYMBOL(of_device_unregister);
-EXPORT_SYMBOL(of_dev_get);
-EXPORT_SYMBOL(of_dev_put);
-EXPORT_SYMBOL(of_platform_device_create);
-EXPORT_SYMBOL(of_release_dev);
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
index 1cf5de21a3fd..894779712b46 100644
--- a/arch/ppc/syslib/open_pic.c
+++ b/arch/ppc/syslib/open_pic.c
@@ -23,6 +23,7 @@
 #include <asm/sections.h>
 #include <asm/open_pic.h>
 #include <asm/i8259.h>
+#include <asm/machdep.h>
 
 #include "open_pic_defs.h"
 
@@ -889,7 +890,7 @@ openpic_get_irq(struct pt_regs *regs)
 
 #ifdef CONFIG_SMP
 void
-smp_openpic_message_pass(int target, int msg, unsigned long data, int wait)
+smp_openpic_message_pass(int target, int msg)
 {
         cpumask_t mask = CPU_MASK_ALL;
         /* make sure we're sending something that translates to an IPI */
diff --git a/arch/ppc/syslib/open_pic2.c b/arch/ppc/syslib/open_pic2.c
index 16cff91d9f41..1c40049b9a45 100644
--- a/arch/ppc/syslib/open_pic2.c
+++ b/arch/ppc/syslib/open_pic2.c
@@ -27,6 +27,7 @@
 #include <asm/sections.h>
 #include <asm/open_pic.h>
 #include <asm/i8259.h>
+#include <asm/machdep.h>
 
 #include "open_pic_defs.h"
 
diff --git a/arch/ppc/syslib/ppc403_pic.c b/arch/ppc/syslib/ppc403_pic.c
index ce4d1deb86e9..c46043c47225 100644
--- a/arch/ppc/syslib/ppc403_pic.c
+++ b/arch/ppc/syslib/ppc403_pic.c
@@ -26,6 +26,7 @@
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/ppc4xx_pic.h>
+#include <asm/machdep.h>
 
 /* Function Prototypes */
 
diff --git a/arch/ppc/syslib/ppc4xx_pic.c b/arch/ppc/syslib/ppc4xx_pic.c
index 40086212b9c3..0b435633a0d1 100644
--- a/arch/ppc/syslib/ppc4xx_pic.c
+++ b/arch/ppc/syslib/ppc4xx_pic.c
@@ -25,6 +25,7 @@
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/ppc4xx_pic.h>
+#include <asm/machdep.h>
 
 /* See comment in include/arch-ppc/ppc4xx_pic.h
  * for more info about these two variables
diff --git a/arch/ppc/syslib/ppc4xx_setup.c b/arch/ppc/syslib/ppc4xx_setup.c
index bf83240689dc..e83a83fd95e1 100644
--- a/arch/ppc/syslib/ppc4xx_setup.c
+++ b/arch/ppc/syslib/ppc4xx_setup.c
@@ -278,7 +278,7 @@ ppc4xx_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif /* defined(CONFIG_PCI) && defined(CONFIG_IDE) */
 }
 
-/* Called from MachineCheckException */
+/* Called from machine_check_exception */
 void platform_machine_check(struct pt_regs *regs)
 {
 #if defined(DCRN_PLB0_BEAR)
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c
index 890484e576e7..4da168a6ad03 100644
--- a/arch/ppc/syslib/ppc83xx_setup.c
+++ b/arch/ppc/syslib/ppc83xx_setup.c
@@ -40,6 +40,7 @@
 #include <asm/ppc_sys.h>
 #include <asm/kgdb.h>
 #include <asm/delay.h>
+#include <asm/machdep.h>
 
 #include <syslib/ppc83xx_setup.h>
 #if defined(CONFIG_PCI)
diff --git a/arch/ppc/syslib/ppc85xx_setup.c b/arch/ppc/syslib/ppc85xx_setup.c
index 832b8bf99ae7..de2f90576577 100644
--- a/arch/ppc/syslib/ppc85xx_setup.c
+++ b/arch/ppc/syslib/ppc85xx_setup.c
@@ -29,6 +29,7 @@
 #include <asm/mmu.h>
 #include <asm/ppc_sys.h>
 #include <asm/kgdb.h>
+#include <asm/machdep.h>
 
 #include <syslib/ppc85xx_setup.h>
 
diff --git a/arch/ppc/syslib/ppc8xx_pic.c b/arch/ppc/syslib/ppc8xx_pic.c
index d3b01c6c97de..3e6f51a61d46 100644
--- a/arch/ppc/syslib/ppc8xx_pic.c
+++ b/arch/ppc/syslib/ppc8xx_pic.c
@@ -6,6 +6,7 @@
 #include <linux/signal.h>
 #include <linux/interrupt.h>
 #include <asm/irq.h>
+#include <asm/io.h>
 #include <asm/8xx_immap.h>
 #include <asm/mpc8xx.h>
 #include "ppc8xx_pic.h"
@@ -29,8 +30,7 @@ static void m8xx_mask_irq(unsigned int irq_nr)
         word = irq_nr >> 5;
 
         ppc_cached_irq_mask[word] &= ~(1 << (31-bit));
-        ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask =
-                                                ppc_cached_irq_mask[word];
+        out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask, ppc_cached_irq_mask[word]);
 }
 
 static void m8xx_unmask_irq(unsigned int irq_nr)
@@ -41,8 +41,7 @@ static void m8xx_unmask_irq(unsigned int irq_nr)
         word = irq_nr >> 5;
 
         ppc_cached_irq_mask[word] |= (1 << (31-bit));
-        ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask =
-                                                ppc_cached_irq_mask[word];
+        out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask, ppc_cached_irq_mask[word]);
 }
 
 static void m8xx_end_irq(unsigned int irq_nr)
@@ -55,8 +54,7 @@ static void m8xx_end_irq(unsigned int irq_nr)
                 word = irq_nr >> 5;
 
                 ppc_cached_irq_mask[word] |= (1 << (31-bit));
-                ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask =
-                        ppc_cached_irq_mask[word];
+                out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask, ppc_cached_irq_mask[word]);
         }
 }
 
@@ -69,9 +67,8 @@ static void m8xx_mask_and_ack(unsigned int irq_nr)
         word = irq_nr >> 5;
 
         ppc_cached_irq_mask[word] &= ~(1 << (31-bit));
-        ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask =
-                                                ppc_cached_irq_mask[word];
-        ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_sipend = 1 << (31-bit);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_simask, ppc_cached_irq_mask[word]);
+        out_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_sipend, 1 << (31-bit));
 }
 
 struct hw_interrupt_type ppc8xx_pic = {
@@ -93,7 +90,7 @@ m8xx_get_irq(struct pt_regs *regs)
         /* For MPC8xx, read the SIVEC register and shift the bits down
          * to get the irq number.
          */
-        irq = ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_sivec >> 26;
+        irq = in_be32(&((immap_t *)IMAP_ADDR)->im_siu_conf.sc_sivec) >> 26;
 
         /*
          * When we read the sivec without an interrupt to process, we will
diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c
index 52ba0c68078d..62ee86e80711 100644
--- a/arch/ppc/syslib/ppc_sys.c
+++ b/arch/ppc/syslib/ppc_sys.c
@@ -69,6 +69,9 @@ static int __init find_chip_by_name_and_id(char *name, u32 id)
                         matched[j++] = i;
                 i++;
         }
+
+        ret = i;
+
         if (j != 0) {
                 for (i = 0; i < j; i++) {
                         if ((ppc_sys_specs[matched[i]].mask & id) ==
diff --git a/arch/ppc/syslib/pq2_devices.c b/arch/ppc/syslib/pq2_devices.c
index 1d3869768f96..6f88ba93412b 100644
--- a/arch/ppc/syslib/pq2_devices.c
+++ b/arch/ppc/syslib/pq2_devices.c
@@ -18,6 +18,7 @@
 #include <asm/cpm2.h>
 #include <asm/irq.h>
 #include <asm/ppc_sys.h>
+#include <asm/machdep.h>
 
 struct platform_device ppc_sys_platform_devices[] = {
         [MPC82xx_CPM_FCC1] = {
diff --git a/arch/ppc/syslib/prep_nvram.c b/arch/ppc/syslib/prep_nvram.c
index 8599850ca772..2c6364d9641f 100644
--- a/arch/ppc/syslib/prep_nvram.c
+++ b/arch/ppc/syslib/prep_nvram.c
@@ -22,14 +22,14 @@
 static char nvramData[MAX_PREP_NVRAM];
 static NVRAM_MAP *nvram=(NVRAM_MAP *)&nvramData[0];
 
-unsigned char __prep prep_nvram_read_val(int addr)
+unsigned char prep_nvram_read_val(int addr)
 {
         outb(addr, PREP_NVRAM_AS0);
         outb(addr>>8, PREP_NVRAM_AS1);
         return inb(PREP_NVRAM_DATA);
 }
 
-void __prep prep_nvram_write_val(int           addr,
+void prep_nvram_write_val(int           addr,
                           unsigned char val)
 {
         outb(addr, PREP_NVRAM_AS0);
@@ -81,8 +81,7 @@ void __init init_prep_nvram(void)
         }
 }
 
-__prep
-char __prep *prep_nvram_get_var(const char *name)
+char *prep_nvram_get_var(const char *name)
 {
         char *cp;
         int  namelen;
@@ -101,8 +100,7 @@ char __prep *prep_nvram_get_var(const char *name)
         return NULL;
 }
 
-__prep
-char __prep *prep_nvram_first_var(void)
+char *prep_nvram_first_var(void)
 {
         if (nvram->Header.GELength == 0) {
                 return NULL;
@@ -112,8 +110,7 @@ char __prep *prep_nvram_first_var(void)
         }
 }
 
-__prep
-char __prep *prep_nvram_next_var(char *name)
+char *prep_nvram_next_var(char *name)
 {
         char *cp;
 
diff --git a/arch/ppc/syslib/prom.c b/arch/ppc/syslib/prom.c
index 2c64ed627475..278da6ee62ea 100644
--- a/arch/ppc/syslib/prom.c
+++ b/arch/ppc/syslib/prom.c
@@ -89,7 +89,7 @@ extern char cmd_line[512];	/* XXX */
 extern boot_infos_t *boot_infos;
 unsigned long dev_tree_size;
 
-void __openfirmware
+void
 phys_call_rtas(int service, int nargs, int nret, ...)
 {
         va_list list;
@@ -862,7 +862,7 @@ find_type_devices(const char *type)
 /*
  * Returns all nodes linked together
  */
-struct device_node * __openfirmware
+struct device_node *
 find_all_nodes(void)
 {
         struct device_node *head, **prevp, *np;
@@ -1165,7 +1165,7 @@ get_property(struct device_node *np, const char *name, int *lenp)
 /*
  * Add a property to a node
  */
-void __openfirmware
+void
 prom_add_property(struct device_node* np, struct property* prop)
 {
         struct property **next = &np->properties;
@@ -1177,7 +1177,7 @@ prom_add_property(struct device_node* np, struct property* prop)
 }
 
 /* I quickly hacked that one, check against spec ! */
-static inline unsigned long __openfirmware
+static inline unsigned long
 bus_space_to_resource_flags(unsigned int bus_space)
 {
         u8 space = (bus_space >> 24) & 0xf;
@@ -1194,7 +1194,7 @@ bus_space_to_resource_flags(unsigned int bus_space)
         }
 }
 
-static struct resource* __openfirmware
+static struct resource*
 find_parent_pci_resource(struct pci_dev* pdev, struct address_range *range)
 {
         unsigned long mask;
@@ -1224,7 +1224,7 @@ find_parent_pci_resource(struct pci_dev* pdev, struct address_range *range)
  * or other nodes attached to the root node. Ultimately, put some
  * link to resources in the OF node.
  */
-struct resource* __openfirmware
+struct resource*
 request_OF_resource(struct device_node* node, int index, const char* name_postfix)
 {
         struct pci_dev* pcidev;
@@ -1280,7 +1280,7 @@ fail:
         return NULL;
 }
 
-int __openfirmware
+int
 release_OF_resource(struct device_node* node, int index)
 {
         struct pci_dev* pcidev;
@@ -1346,7 +1346,7 @@ release_OF_resource(struct device_node* node, int index)
 }
 
 #if 0
-void __openfirmware
+void
 print_properties(struct device_node *np)
 {
         struct property *pp;
@@ -1400,7 +1400,7 @@ print_properties(struct device_node *np)
 static DEFINE_SPINLOCK(rtas_lock);
 
 /* this can be called after setup -- Cort */
-int __openfirmware
+int
 call_rtas(const char *service, int nargs, int nret,
           unsigned long *outputs, ...)
 {
diff --git a/arch/ppc/syslib/xilinx_pic.c b/arch/ppc/syslib/xilinx_pic.c
index 2cbcad278cef..47f04c71fe9c 100644
--- a/arch/ppc/syslib/xilinx_pic.c
+++ b/arch/ppc/syslib/xilinx_pic.c
@@ -17,6 +17,7 @@
 #include <asm/io.h>
 #include <asm/xparameters.h>
 #include <asm/ibm4xx.h>
+#include <asm/machdep.h>
 
 /* No one else should require these constants, so define them locally here. */
 #define ISR 0                   /* Interrupt Status Register */
diff --git a/arch/ppc/xmon/start.c b/arch/ppc/xmon/start.c
index 507d4eeffe07..98612d420346 100644
--- a/arch/ppc/xmon/start.c
+++ b/arch/ppc/xmon/start.c
@@ -478,8 +478,9 @@ void *xmon_stdout;
 void *xmon_stderr;
 
 void
-xmon_init(void)
+xmon_init(int arg)
 {
+        xmon_map_scc();
 }
 
 int
diff --git a/arch/ppc/xmon/xmon.c b/arch/ppc/xmon/xmon.c
index be7869e39465..66bfaa3211a2 100644
--- a/arch/ppc/xmon/xmon.c
+++ b/arch/ppc/xmon/xmon.c
@@ -148,9 +148,14 @@ Commands:\n\
   r     print registers\n\
   S     print special registers\n\
   t     print backtrace\n\
-  la    lookup address in system.map\n\
-  ls    lookup symbol in system.map\n\
+  la    lookup address\n\
+  ls    lookup symbol\n\
+  C     checksum\n\
+  p     call function with arguments\n\
+  T     print time\n\
   x     exit monitor\n\
+  zr    reboot\n\
+  zh    halt\n\
 ";
 
 static int xmon_trace[NR_CPUS];
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index c658650af429..42677cc96508 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -10,6 +10,9 @@ config MMU
         bool
         default y
 
+config PPC_STD_MMU
+        def_bool y
+
 config UID16
         bool
 
@@ -120,6 +123,11 @@ config MPIC
         bool
         default y
 
+config PPC_I8259
+        depends on PPC_PSERIES
+        bool
+        default y
+
 config BPA_IIC
         depends on PPC_BPA
         bool
@@ -186,6 +194,12 @@ config BOOTX_TEXT
           Say Y here to see progress messages from the boot firmware in text
           mode. Requires an Open Firmware compatible video card.
 
+config POWER4
+        def_bool y
+
+config PPC_FPU
+        def_bool y
+
 config POWER4_ONLY
         bool "Optimize for POWER4"
         default n
@@ -234,6 +248,10 @@ config HMT
           This option enables hardware multithreading on RS64 cpus.
           pSeries systems p620 and p660 have such a cpu type.
 
+config NUMA
+        bool "NUMA support"
+        default y if SMP && PPC_PSERIES
+
 config ARCH_SELECT_MEMORY_MODEL
         def_bool y
 
@@ -249,9 +267,6 @@ config ARCH_DISCONTIGMEM_DEFAULT
         def_bool y
         depends on ARCH_DISCONTIGMEM_ENABLE
 
-config ARCH_FLATMEM_ENABLE
-        def_bool y
-
 config ARCH_SPARSEMEM_ENABLE
         def_bool y
         depends on ARCH_DISCONTIGMEM_ENABLE
@@ -274,10 +289,6 @@ config NODES_SPAN_OTHER_NODES
         def_bool y
         depends on NEED_MULTIPLE_NODES
 
-config NUMA
-        bool "NUMA support"
-        default y if DISCONTIGMEM || SPARSEMEM
-
 config SCHED_SMT
         bool "SMT (Hyperthreading) scheduler support"
         depends on SMP
@@ -307,6 +318,11 @@ config PPC_RTAS
         depends on PPC_PSERIES || PPC_BPA
         default y
 
+config RTAS_ERROR_LOGGING
+        bool
+        depends on PPC_RTAS
+        default y
+
 config RTAS_PROC
         bool "Proc interface to RTAS"
         depends on PPC_RTAS
@@ -357,7 +373,6 @@ config HOTPLUG_CPU
 
 config PROC_DEVICETREE
         bool "Support for Open Firmware device tree in /proc"
-        depends on !PPC_ISERIES
         help
           This option adds a device-tree directory under /proc which contains
           an image of the device tree that the kernel copies from Open
@@ -461,7 +476,7 @@ config VIOPATH
         depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || VETH
         default y
 
-source "arch/ppc64/oprofile/Kconfig"
+source "arch/powerpc/oprofile/Kconfig"
 
 source "arch/ppc64/Kconfig.debug"
 
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index 521c2a5a2862..fdbd6f44adc0 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -75,17 +75,25 @@ else
         CFLAGS += $(call cc-option,-mtune=power4)
 endif
 
+# No AltiVec instruction when building kernel
+CFLAGS  += $(call cc-option, -mno-altivec)
+
 # Enable unit-at-a-time mode when possible. It shrinks the
 # kernel considerably.
 CFLAGS += $(call cc-option,-funit-at-a-time)
 
 head-y := arch/ppc64/kernel/head.o
+head-y += arch/powerpc/kernel/fpu.o
+head-y += arch/powerpc/kernel/entry_64.o
 
 libs-y                          += arch/ppc64/lib/
-core-y                          += arch/ppc64/kernel/
-core-y                          += arch/ppc64/mm/
-core-$(CONFIG_XMON)             += arch/ppc64/xmon/
-drivers-$(CONFIG_OPROFILE)      += arch/ppc64/oprofile/
+core-y                          += arch/ppc64/kernel/ arch/powerpc/kernel/
+core-y                          += arch/powerpc/mm/
+core-y                          += arch/powerpc/sysdev/
+core-y                          += arch/powerpc/platforms/
+core-y                          += arch/powerpc/lib/
+core-$(CONFIG_XMON)             += arch/powerpc/xmon/
+drivers-$(CONFIG_OPROFILE)      += arch/powerpc/oprofile/
 
 boot := arch/ppc64/boot
 
@@ -100,7 +108,7 @@ $(boottargets-y): vmlinux
 bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage
 bootimage-$(CONFIG_PPC_PMAC) := vmlinux
 bootimage-$(CONFIG_PPC_MAPLE) := $(boot)/zImage
-bootimage-$(CONFIG_PPC_BPA) := zImage
+bootimage-$(CONFIG_PPC_BPA) := $(boot)/zImage
 bootimage-$(CONFIG_PPC_ISERIES) := vmlinux
 BOOTIMAGE := $(bootimage-y)
 install: vmlinux
diff --git a/arch/ppc64/boot/Makefile b/arch/ppc64/boot/Makefile
index 33fdc8710891..301bc1536c49 100644
--- a/arch/ppc64/boot/Makefile
+++ b/arch/ppc64/boot/Makefile
@@ -22,15 +22,46 @@
 
 
 HOSTCC          := gcc
-BOOTCFLAGS      := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem $(shell $(CROSS32CC) -print-file-name=include)
+BOOTCFLAGS      := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem $(shell $(CROSS32CC) -print-file-name=include) -fPIC
 BOOTAFLAGS      := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
-BOOTLFLAGS      := -Ttext 0x00400000 -e _start -T $(srctree)/$(src)/zImage.lds
+BOOTLFLAGS      := -T $(srctree)/$(src)/zImage.lds
 OBJCOPYFLAGS    := contents,alloc,load,readonly,data
 
-src-boot := crt0.S string.S prom.c main.c zlib.c imagesize.c div64.S
+zlib       := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c
+zlibheader := infblock.h infcodes.h inffast.h inftrees.h infutil.h
+zliblinuxheader := zlib.h zconf.h zutil.h
+
+$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
+#$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h)
+
+src-boot := string.S prom.c main.c div64.S crt0.S
+src-boot += $(zlib)
 src-boot := $(addprefix $(obj)/, $(src-boot))
 obj-boot := $(addsuffix .o, $(basename $(src-boot)))
 
+BOOTCFLAGS      += -I$(obj) -I$(srctree)/$(obj)
+
+quiet_cmd_copy_zlib = COPY    $@
+      cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@
+
+quiet_cmd_copy_zlibheader = COPY    $@
+      cmd_copy_zlibheader = sed "s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@
+# stddef.h for NULL
+quiet_cmd_copy_zliblinuxheader = COPY    $@
+      cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@
+
+$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
+        $(call cmd,copy_zlib)
+
+$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
+        $(call cmd,copy_zlibheader)
+
+$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
+        $(call cmd,copy_zliblinuxheader)
+
+clean-files := $(zlib) $(zlibheader) $(zliblinuxheader)
+
+
 quiet_cmd_bootcc = BOOTCC  $@
       cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
 
@@ -56,7 +87,7 @@ src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
 gz-sec  = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
 
 hostprogs-y             := addnote addRamDisk
-targets                 += zImage.vmode zImage.initrd.vmode zImage zImage.initrd imagesize.c \
+targets                 += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
                            $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
                            $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
                            $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
@@ -69,9 +100,9 @@ quiet_cmd_ramdisk = RAMDISK $@
 quiet_cmd_stripvm = STRIP   $@
       cmd_stripvm = $(STRIP) -s $< -o $@
 
-vmlinux.strip: vmlinux FORCE
+vmlinux.strip: vmlinux
         $(call if_changed,stripvm)
-$(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz FORCE
+$(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz
         $(call if_changed,ramdisk)
 
 quiet_cmd_addsection = ADDSEC  $@
@@ -79,48 +110,38 @@ quiet_cmd_addsection = ADDSEC  $@
                 --add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(patsubst %.o,%.gz, $@) \
                 --set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(OBJCOPYFLAGS)
 
-quiet_cmd_imagesize = GENSIZE $@
-      cmd_imagesize = ls -l vmlinux.strip | \
-                awk '{printf "/* generated -- do not edit! */\n" "unsigned long vmlinux_filesize = %d;\n", $$5}' \
-                > $(obj)/imagesize.c && \
-                $(CROSS_COMPILE)nm -n vmlinux | tail -n 1 | \
-                awk '{printf "unsigned long vmlinux_memsize = 0x%s;\n", substr($$1,8)}' >> $(obj)/imagesize.c
-
 quiet_cmd_addnote = ADDNOTE $@
       cmd_addnote = $(obj)/addnote $@
 
-$(call gz-sec, $(required)): $(obj)/kernel-%.gz: % FORCE
+$(call gz-sec, $(required)): $(obj)/kernel-%.gz: %
         $(call if_changed,gzip)
 
 $(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz
         cp -f $(obj)/ramdisk.image.gz $@
 
-$(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz FORCE
+$(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz
         @touch $@
 
-$(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c FORCE
+$(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c
         $(call if_changed_dep,bootcc)
         $(call cmd,addsection)
 
 $(obj)/zImage.vmode: obj-boot += $(call obj-sec, $(required))
-$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) FORCE
+$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds
         $(call cmd,bootld,$(obj-boot))
 
 $(obj)/zImage.initrd.vmode: obj-boot += $(call obj-sec, $(required) $(initrd))
-$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) FORCE
+$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
         $(call cmd,bootld,$(obj-boot))
 
-$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote FORCE
+$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote
         @cp -f $< $@
         $(call if_changed,addnote)
 
-$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote FORCE
+$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote
         @cp -f $< $@
         $(call if_changed,addnote)
 
-$(obj)/imagesize.c: vmlinux.strip
-        $(call cmd,imagesize)
-
 install: $(CONFIGURE) $(BOOTIMAGE)
         sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"
 
diff --git a/arch/ppc64/boot/crt0.S b/arch/ppc64/boot/crt0.S
index 3861e7f9cf19..9cc442263939 100644
--- a/arch/ppc64/boot/crt0.S
+++ b/arch/ppc64/boot/crt0.S
@@ -12,11 +12,40 @@
 #include "ppc_asm.h"
 
         .text
-        .globl  _start
-_start:
+        .globl  _zimage_start
+_zimage_start:
+        bl      reloc_offset
+
+reloc_offset:
+        mflr    r0
+        lis     r9,reloc_offset@ha
+        addi    r9,r9,reloc_offset@l
+        subf.   r0,r9,r0
+        beq     clear_caches
+
+reloc_got2:
+        lis     r9,__got2_start@ha
+        addi    r9,r9,__got2_start@l
+        lis     r8,__got2_end@ha
+        addi    r8,r8,__got2_end@l
+        subf.   r8,r9,r8
+        beq     clear_caches
+        srwi.   r8,r8,2
+        mtctr   r8
+        add     r9,r0,r9
+reloc_got2_loop:
+        lwz     r8,0(r9)
+        add     r8,r8,r0
+        stw     r8,0(r9)
+        addi    r9,r9,4
+        bdnz    reloc_got2_loop
+
+clear_caches:
         lis     r9,_start@h
+        add     r9,r0,r9
         lis     r8,_etext@ha
         addi    r8,r8,_etext@l
+        add     r8,r0,r8
 1:      dcbf    r0,r9
         icbi    r0,r9
         addi    r9,r9,0x20
@@ -25,24 +54,6 @@ _start:
         sync
         isync
 
-        ## Clear out the BSS as per ANSI C requirements
-
-        lis     r7,_end@ha
-        addi    r7,r7,_end@l            # r7 = &_end 
-        lis     r8,__bss_start@ha       # 
-        addi    r8,r8,__bss_start@l     # r8 = &_bss_start
-
-        ## Determine how large an area, in number of words, to clear
-
-        subf    r7,r8,r7                # r7 = &_end - &_bss_start + 1 
-        addi    r7,r7,3                 # r7 += 3 
-        srwi.   r7,r7,2                 # r7 = size in words.
-        beq     3f                      # If the size is zero, don't bother
-        addi    r8,r8,-4                # r8 -= 4 
-        mtctr   r7                      # SPRN_CTR = number of words to clear
-        li      r0,0                    # r0 = 0
-2:      stwu    r0,4(r8)                # Clear out a word
-        bdnz    2b                      # Keep clearing until done
-3:
+        mr      r6,r1
         b       start
 
diff --git a/arch/ppc64/boot/install.sh b/arch/ppc64/boot/install.sh
index cb2d6626b555..eacce9590816 100644
--- a/arch/ppc64/boot/install.sh
+++ b/arch/ppc64/boot/install.sh
@@ -28,7 +28,7 @@ if [ -x /sbin/${CROSS_COMPILE}installkernel ]; then exec /sbin/${CROSS_COMPILE}i
 # Default install
 
 # this should work for both the pSeries zImage and the iSeries vmlinux.sm
-image_name=`basename $5`
+image_name=`basename $2`
 
 if [ -f $4/$image_name ]; then
         mv $4/$image_name $4/$image_name.old
diff --git a/arch/ppc64/boot/main.c b/arch/ppc64/boot/main.c
index f7ec19a2d0b0..c1dc876bccab 100644
--- a/arch/ppc64/boot/main.c
+++ b/arch/ppc64/boot/main.c
@@ -17,7 +17,6 @@
 #include "prom.h"
 #include "zlib.h"
 
-static void gunzip(void *, int, unsigned char *, int *);
 extern void flush_cache(void *, unsigned long);
 
 
@@ -26,31 +25,26 @@ extern void flush_cache(void *, unsigned long);
 #define RAM_END         (512<<20) // Fixme: use OF */
 #define ONE_MB          0x100000
 
-static char *avail_ram;
-static char *begin_avail, *end_avail;
-static char *avail_high;
-static unsigned int heap_use;
-static unsigned int heap_max;
-
 extern char _start[];
+extern char __bss_start[];
 extern char _end[];
 extern char _vmlinux_start[];
 extern char _vmlinux_end[];
 extern char _initrd_start[];
 extern char _initrd_end[];
-extern unsigned long vmlinux_filesize;
-extern unsigned long vmlinux_memsize;
 
 struct addr_range {
         unsigned long addr;
         unsigned long size;
         unsigned long memsize;
 };
-static struct addr_range vmlinux = {0, 0, 0};
-static struct addr_range vmlinuz = {0, 0, 0};
-static struct addr_range initrd  = {0, 0, 0};
+static struct addr_range vmlinux;
+static struct addr_range vmlinuz;
+static struct addr_range initrd;
+
+static char scratch[46912];     /* scratch space for gunzip, from zlib_inflate_workspacesize() */
+static char elfheader[256];
 
-static char scratch[128<<10];   /* 128kB of scratch space for gunzip */
 
 typedef void (*kernel_entry_t)( unsigned long,
                                 unsigned long,
@@ -62,6 +56,63 @@ typedef void (*kernel_entry_t)( unsigned long,
 
 static unsigned long claim_base;
 
+#define HEAD_CRC        2
+#define EXTRA_FIELD     4
+#define ORIG_NAME       8
+#define COMMENT         0x10
+#define RESERVED        0xe0
+
+static void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
+{
+        z_stream s;
+        int r, i, flags;
+
+        /* skip header */
+        i = 10;
+        flags = src[3];
+        if (src[2] != Z_DEFLATED || (flags & RESERVED) != 0) {
+                printf("bad gzipped data\n\r");
+                exit();
+        }
+        if ((flags & EXTRA_FIELD) != 0)
+                i = 12 + src[10] + (src[11] << 8);
+        if ((flags & ORIG_NAME) != 0)
+                while (src[i++] != 0)
+                        ;
+        if ((flags & COMMENT) != 0)
+                while (src[i++] != 0)
+                        ;
+        if ((flags & HEAD_CRC) != 0)
+                i += 2;
+        if (i >= *lenp) {
+                printf("gunzip: ran out of data in header\n\r");
+                exit();
+        }
+
+        if (zlib_inflate_workspacesize() > sizeof(scratch)) {
+                printf("gunzip needs more mem\n");
+                exit();
+        }
+        memset(&s, 0, sizeof(s));
+        s.workspace = scratch;
+        r = zlib_inflateInit2(&s, -MAX_WBITS);
+        if (r != Z_OK) {
+                printf("inflateInit2 returned %d\n\r", r);
+                exit();
+        }
+        s.next_in = src + i;
+        s.avail_in = *lenp - i;
+        s.next_out = dst;
+        s.avail_out = dstlen;
+        r = zlib_inflate(&s, Z_FULL_FLUSH);
+        if (r != Z_OK && r != Z_STREAM_END) {
+                printf("inflate returned %d msg: %s\n\r", r, s.msg);
+                exit();
+        }
+        *lenp = s.next_out - (unsigned char *) dst;
+        zlib_inflateEnd(&s);
+}
+
 static unsigned long try_claim(unsigned long size)
 {
         unsigned long addr = 0;
@@ -80,13 +131,16 @@ static unsigned long try_claim(unsigned long size)
         return addr;
 }
 
-void start(unsigned long a1, unsigned long a2, void *promptr)
+void start(unsigned long a1, unsigned long a2, void *promptr, void *sp)
 {
         unsigned long i;
+        int len;
         kernel_entry_t kernel_entry;
         Elf64_Ehdr *elf64;
         Elf64_Phdr *elf64ph;
 
+        memset(__bss_start, 0, _end - __bss_start);
+
         prom = (int (*)(void *)) promptr;
         chosen_handle = finddevice("/chosen");
         if (chosen_handle == (void *) -1)
@@ -97,7 +151,7 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
         if (getprop(chosen_handle, "stdin", &stdin, sizeof(stdin)) != 4)
                 exit();
 
-        printf("\n\rzImage starting: loaded at 0x%lx\n\r", (unsigned long) _start);
+        printf("\n\rzImage starting: loaded at 0x%p (sp: 0x%p)\n\r", _start, sp);
 
         /*
          * The first available claim_base must be above the end of the
@@ -118,25 +172,45 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
                 claim_base = PROG_START;
 #endif
 
-        /*
-         * Now we try to claim some memory for the kernel itself
-         * our "vmlinux_memsize" is the memory footprint in RAM, _HOWEVER_, what
-         * our Makefile stuffs in is an image containing all sort of junk including
-         * an ELF header. We need to do some calculations here to find the right
-         * size... In practice we add 1Mb, that is enough, but we should really
-         * consider fixing the Makefile to put a _raw_ kernel in there !
-         */
-        vmlinux_memsize += ONE_MB;
-        printf("Allocating 0x%lx bytes for kernel ...\n\r", vmlinux_memsize);
-        vmlinux.addr = try_claim(vmlinux_memsize);
+        vmlinuz.addr = (unsigned long)_vmlinux_start;
+        vmlinuz.size = (unsigned long)(_vmlinux_end - _vmlinux_start);
+
+        /* gunzip the ELF header of the kernel */
+        if (*(unsigned short *)vmlinuz.addr == 0x1f8b) {
+                len = vmlinuz.size;
+                gunzip(elfheader, sizeof(elfheader),
+                                (unsigned char *)vmlinuz.addr, &len);
+        } else
+                memcpy(elfheader, (const void *)vmlinuz.addr, sizeof(elfheader));
+
+        elf64 = (Elf64_Ehdr *)elfheader;
+        if ( elf64->e_ident[EI_MAG0]  != ELFMAG0        ||
+             elf64->e_ident[EI_MAG1]  != ELFMAG1        ||
+             elf64->e_ident[EI_MAG2]  != ELFMAG2        ||
+             elf64->e_ident[EI_MAG3]  != ELFMAG3        ||
+             elf64->e_ident[EI_CLASS] != ELFCLASS64     ||
+             elf64->e_ident[EI_DATA]  != ELFDATA2MSB    ||
+             elf64->e_type            != ET_EXEC        ||
+             elf64->e_machine         != EM_PPC64 )
+        {
+                printf("Error: not a valid PPC64 ELF file!\n\r");
+                exit();
+        }
+
+        elf64ph = (Elf64_Phdr *)((unsigned long)elf64 +
+                                (unsigned long)elf64->e_phoff);
+        for(i=0; i < (unsigned int)elf64->e_phnum ;i++,elf64ph++) {
+                if (elf64ph->p_type == PT_LOAD && elf64ph->p_offset != 0)
+                        break;
+        }
+        vmlinux.size = (unsigned long)elf64ph->p_filesz;
+        vmlinux.memsize = (unsigned long)elf64ph->p_memsz;
+        printf("Allocating 0x%lx bytes for kernel ...\n\r", vmlinux.memsize);
+        vmlinux.addr = try_claim(vmlinux.memsize);
         if (vmlinux.addr == 0) {
                 printf("Can't allocate memory for kernel image !\n\r");
                 exit();
         }
-        vmlinuz.addr = (unsigned long)_vmlinux_start;
-        vmlinuz.size = (unsigned long)(_vmlinux_end - _vmlinux_start);
-        vmlinux.size = PAGE_ALIGN(vmlinux_filesize);
-        vmlinux.memsize = vmlinux_memsize;
 
         /*
          * Now we try to claim memory for the initrd (and copy it there)
@@ -160,49 +234,22 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
 
         /* Eventually gunzip the kernel */
         if (*(unsigned short *)vmlinuz.addr == 0x1f8b) {
-                int len;
-                avail_ram = scratch;
-                begin_avail = avail_high = avail_ram;
-                end_avail = scratch + sizeof(scratch);
                 printf("gunzipping (0x%lx <- 0x%lx:0x%0lx)...",
                        vmlinux.addr, vmlinuz.addr, vmlinuz.addr+vmlinuz.size);
                 len = vmlinuz.size;
-                gunzip((void *)vmlinux.addr, vmlinux.size,
+                gunzip((void *)vmlinux.addr, vmlinux.memsize,
                         (unsigned char *)vmlinuz.addr, &len);
                 printf("done 0x%lx bytes\n\r", len);
-                printf("0x%x bytes of heap consumed, max in use 0x%x\n\r",
-                       (unsigned)(avail_high - begin_avail), heap_max);
         } else {
                 memmove((void *)vmlinux.addr,(void *)vmlinuz.addr,vmlinuz.size);
         }
 
         /* Skip over the ELF header */
-        elf64 = (Elf64_Ehdr *)vmlinux.addr;
-        if ( elf64->e_ident[EI_MAG0]  != ELFMAG0        ||
-             elf64->e_ident[EI_MAG1]  != ELFMAG1        ||
-             elf64->e_ident[EI_MAG2]  != ELFMAG2        ||
-             elf64->e_ident[EI_MAG3]  != ELFMAG3        ||
-             elf64->e_ident[EI_CLASS] != ELFCLASS64     ||
-             elf64->e_ident[EI_DATA]  != ELFDATA2MSB    ||
-             elf64->e_type            != ET_EXEC        ||
-             elf64->e_machine         != EM_PPC64 )
-        {
-                printf("Error: not a valid PPC64 ELF file!\n\r");
-                exit();
-        }
-
-        elf64ph = (Elf64_Phdr *)((unsigned long)elf64 +
-                                (unsigned long)elf64->e_phoff);
-        for(i=0; i < (unsigned int)elf64->e_phnum ;i++,elf64ph++) {
-                if (elf64ph->p_type == PT_LOAD && elf64ph->p_offset != 0)
-                        break;
-        }
 #ifdef DEBUG
         printf("... skipping 0x%lx bytes of ELF header\n\r",
                         (unsigned long)elf64ph->p_offset);
 #endif
         vmlinux.addr += (unsigned long)elf64ph->p_offset;
-        vmlinux.size -= (unsigned long)elf64ph->p_offset;
 
         flush_cache((void *)vmlinux.addr, vmlinux.size);
 
@@ -225,108 +272,3 @@ void start(unsigned long a1, unsigned long a2, void *promptr)
         exit();
 }
 
-struct memchunk {
-        unsigned int size;
-        unsigned int pad;
-        struct memchunk *next;
-};
-
-static struct memchunk *freechunks;
-
-void *zalloc(void *x, unsigned items, unsigned size)
-{
-        void *p;
-        struct memchunk **mpp, *mp;
-
-        size *= items;
-        size = _ALIGN(size, sizeof(struct memchunk));
-        heap_use += size;
-        if (heap_use > heap_max)
-                heap_max = heap_use;
-        for (mpp = &freechunks; (mp = *mpp) != 0; mpp = &mp->next) {
-                if (mp->size == size) {
-                        *mpp = mp->next;
-                        return mp;
-                }
-        }
-        p = avail_ram;
-        avail_ram += size;
-        if (avail_ram > avail_high)
-                avail_high = avail_ram;
-        if (avail_ram > end_avail) {
-                printf("oops... out of memory\n\r");
-                pause();
-        }
-        return p;
-}
-
-void zfree(void *x, void *addr, unsigned nb)
-{
-        struct memchunk *mp = addr;
-
-        nb = _ALIGN(nb, sizeof(struct memchunk));
-        heap_use -= nb;
-        if (avail_ram == addr + nb) {
-                avail_ram = addr;
-                return;
-        }
-        mp->size = nb;
-        mp->next = freechunks;
-        freechunks = mp;
-}
-
-#define HEAD_CRC        2
-#define EXTRA_FIELD     4
-#define ORIG_NAME       8
-#define COMMENT         0x10
-#define RESERVED        0xe0
-
-#define DEFLATED        8
-
-static void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
-{
-        z_stream s;
-        int r, i, flags;
-
-        /* skip header */
-        i = 10;
-        flags = src[3];
-        if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
-                printf("bad gzipped data\n\r");
-                exit();
-        }
-        if ((flags & EXTRA_FIELD) != 0)
-                i = 12 + src[10] + (src[11] << 8);
-        if ((flags & ORIG_NAME) != 0)
-                while (src[i++] != 0)
-                        ;
-        if ((flags & COMMENT) != 0)
-                while (src[i++] != 0)
-                        ;
-        if ((flags & HEAD_CRC) != 0)
-                i += 2;
-        if (i >= *lenp) {
-                printf("gunzip: ran out of data in header\n\r");
-                exit();
-        }
-
-        s.zalloc = zalloc;
-        s.zfree = zfree;
-        r = inflateInit2(&s, -MAX_WBITS);
-        if (r != Z_OK) {
-                printf("inflateInit2 returned %d\n\r", r);
-                exit();
-        }
-        s.next_in = src + i;
-        s.avail_in = *lenp - i;
-        s.next_out = dst;
-        s.avail_out = dstlen;
-        r = inflate(&s, Z_FINISH);
-        if (r != Z_OK && r != Z_STREAM_END) {
-                printf("inflate returned %d msg: %s\n\r", r, s.msg);
-                exit();
-        }
-        *lenp = s.next_out - (unsigned char *) dst;
-        inflateEnd(&s);
-}
-
diff --git a/arch/ppc64/boot/string.S b/arch/ppc64/boot/string.S
index 7ade87ae7718..b1eeaed7db17 100644
--- a/arch/ppc64/boot/string.S
+++ b/arch/ppc64/boot/string.S
@@ -104,7 +104,7 @@ memmove:
 
         .globl  memcpy
 memcpy:
-        rlwinm. r7,r5,32-3,3,31         /* r0 = r5 >> 3 */
+        rlwinm. r7,r5,32-3,3,31         /* r7 = r5 >> 3 */
         addi    r6,r3,-4
         addi    r4,r4,-4
         beq     2f                      /* if less than 8 bytes to do */
@@ -146,7 +146,7 @@ memcpy:
 
         .globl  backwards_memcpy
 backwards_memcpy:
-        rlwinm. r7,r5,32-3,3,31         /* r0 = r5 >> 3 */
+        rlwinm. r7,r5,32-3,3,31         /* r7 = r5 >> 3 */
         add     r6,r3,r5
         add     r4,r4,r5
         beq     2f
diff --git a/arch/ppc64/boot/string.h b/arch/ppc64/boot/string.h
index 9289258bcbd6..9fdff1cc0d70 100644
--- a/arch/ppc64/boot/string.h
+++ b/arch/ppc64/boot/string.h
@@ -1,5 +1,6 @@
 #ifndef _PPC_BOOT_STRING_H_
 #define _PPC_BOOT_STRING_H_
+#include <stddef.h>
 
 extern char *strcpy(char *dest, const char *src);
 extern char *strncpy(char *dest, const char *src, size_t n);
diff --git a/arch/ppc64/boot/zImage.lds b/arch/ppc64/boot/zImage.lds
index 8fe5e7071f54..4b6bb3ffe3dc 100644
--- a/arch/ppc64/boot/zImage.lds
+++ b/arch/ppc64/boot/zImage.lds
@@ -1,62 +1,24 @@
 OUTPUT_ARCH(powerpc:common)
-SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
-/* Do we need any of these for elf?
-   __DYNAMIC = 0;    */
+ENTRY(_zimage_start)
 SECTIONS
 {
-  /* Read-only sections, merged into text segment: */
-  . = + SIZEOF_HEADERS;
-  .interp : { *(.interp) }
-  .hash          : { *(.hash)      }
-  .dynsym        : { *(.dynsym)        }
-  .dynstr        : { *(.dynstr)        }
-  .rel.text      : { *(.rel.text)      }
-  .rela.text     : { *(.rela.text)     }
-  .rel.data      : { *(.rel.data)      }
-  .rela.data     : { *(.rela.data)     }
-  .rel.rodata    : { *(.rel.rodata)    }
-  .rela.rodata   : { *(.rela.rodata)   }
-  .rel.got       : { *(.rel.got)       }
-  .rela.got      : { *(.rela.got)      }
-  .rel.ctors     : { *(.rel.ctors) }
-  .rela.ctors    : { *(.rela.ctors)    }
-  .rel.dtors     : { *(.rel.dtors) }
-  .rela.dtors    : { *(.rela.dtors)    }
-  .rel.bss       : { *(.rel.bss)       }
-  .rela.bss      : { *(.rela.bss)      }
-  .rel.plt       : { *(.rel.plt)       }
-  .rela.plt      : { *(.rela.plt)      }
-  .plt : { *(.plt) }
+  . = (4*1024*1024);
+  _start = .;
   .text      :
   {
     *(.text)
     *(.fixup)
-    *(.got1)
   }
-  . = ALIGN(4096);
   _etext = .;
-  PROVIDE (etext = .);
-  .rodata    :
-  {
-    *(.rodata)
-    *(.rodata1)
-  }
-  .kstrtab   : { *(.kstrtab) }
-  __vermagic : { *(__vermagic) }
-  .fini      : { *(.fini)    } =0
-  .ctors     : { *(.ctors)   }
-  .dtors     : { *(.dtors)   }
-  /* Read-write section, merged into data segment: */
   . = ALIGN(4096);
   .data    :
   {
-    *(.data)
-    *(.data1)
-    *(.sdata)
-    *(.sdata2)
-    *(.got.plt) *(.got)
-    *(.dynamic)
-    CONSTRUCTORS
+    *(.rodata*)
+    *(.data*)
+    *(.sdata*)
+    __got2_start = .;
+    *(.got2)
+    __got2_end = .;
   }
 
   . = ALIGN(4096);
@@ -71,20 +33,14 @@ SECTIONS
 
   . = ALIGN(4096);
   _edata  =  .;
-  PROVIDE (edata = .);
-
-  .fixup   : { *(.fixup) }
 
   . = ALIGN(4096);
   __bss_start = .;
   .bss       :
   {
-   *(.sbss) *(.scommon)
-   *(.dynbss)
+   *(.sbss)
    *(.bss)
-   *(COMMON)
   }
   . = ALIGN(4096);
   _end = . ;
-  PROVIDE (end = .);
 }
diff --git a/arch/ppc64/boot/zlib.c b/arch/ppc64/boot/zlib.c
deleted file mode 100644
index 0d910cd2079d..000000000000
--- a/arch/ppc64/boot/zlib.c
+++ /dev/null
@@ -1,2195 +0,0 @@
-/*
- * This file is derived from various .h and .c files from the zlib-0.95
- * distribution by Jean-loup Gailly and Mark Adler, with some additions
- * by Paul Mackerras to aid in implementing Deflate compression and
- * decompression for PPP packets.  See zlib.h for conditions of
- * distribution and use.
- *
- * Changes that have been made include:
- * - changed functions not used outside this file to "local"
- * - added minCompression parameter to deflateInit2
- * - added Z_PACKET_FLUSH (see zlib.h for details)
- * - added inflateIncomp
- *
-  Copyright (C) 1995 Jean-loup Gailly and Mark Adler
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Jean-loup Gailly        Mark Adler
-  gzip@prep.ai.mit.edu    madler@alumni.caltech.edu
-
- *
- * 
- */
-
-/*+++++*/
-/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* From: zutil.h,v 1.9 1995/05/03 17:27:12 jloup Exp */
-
-#define _Z_UTIL_H
-
-#include "zlib.h"
-
-#ifndef local
-#  define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-#define FAR
-
-typedef unsigned char  uch;
-typedef uch FAR uchf;
-typedef unsigned short ush;
-typedef ush FAR ushf;
-typedef unsigned long  ulg;
-
-extern char *z_errmsg[]; /* indexed by 1-zlib_error */
-
-#define ERR_RETURN(strm,err) return (strm->msg=z_errmsg[1-err], err)
-/* To be used only when the state is known to be valid */
-
-#ifndef NULL
-#define NULL    ((void *) 0)
-#endif
-
-        /* common constants */
-
-#define DEFLATED   8
-
-#ifndef DEF_WBITS
-#  define DEF_WBITS MAX_WBITS
-#endif
-/* default windowBits for decompression. MAX_WBITS is for compression only */
-
-#if MAX_MEM_LEVEL >= 8
-#  define DEF_MEM_LEVEL 8
-#else
-#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
-#endif
-/* default memLevel */
-
-#define STORED_BLOCK 0
-#define STATIC_TREES 1
-#define DYN_TREES    2
-/* The three kinds of block type */
-
-#define MIN_MATCH  3
-#define MAX_MATCH  258
-/* The minimum and maximum match lengths */
-
-         /* functions */
-
-extern void *memcpy(void *, const void *, unsigned long);
-#define zmemcpy memcpy
-
-/* Diagnostic functions */
-#ifdef DEBUG_ZLIB
-#  include "stdio.h"
-#  ifndef verbose
-#    define verbose 0
-#  endif
-#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-
-typedef uLong (*check_func) OF((uLong check, Bytef *buf, uInt len));
-
-/* voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); */
-/* void   zcfree  OF((voidpf opaque, voidpf ptr)); */
-
-#define ZALLOC(strm, items, size) \
-           (*((strm)->zalloc))((strm)->opaque, (items), (size))
-#define ZFREE(strm, addr, size) \
-           (*((strm)->zfree))((strm)->opaque, (voidpf)(addr), (size))
-#define TRY_FREE(s, p, n) {if (p) ZFREE(s, p, n);}
-
-/* deflate.h -- internal compression state
- * Copyright (C) 1995 Jean-loup Gailly
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/*+++++*/
-/* infblock.h -- header to use infblock.c
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-struct inflate_blocks_state;
-typedef struct inflate_blocks_state FAR inflate_blocks_statef;
-
-local inflate_blocks_statef * inflate_blocks_new OF((
-    z_stream *z,
-    check_func c,               /* check function */
-    uInt w));                   /* window size */
-
-local int inflate_blocks OF((
-    inflate_blocks_statef *,
-    z_stream *,
-    int));                      /* initial return code */
-
-local void inflate_blocks_reset OF((
-    inflate_blocks_statef *,
-    z_stream *,
-    uLongf *));                  /* check value on output */
-
-local int inflate_blocks_free OF((
-    inflate_blocks_statef *,
-    z_stream *,
-    uLongf *));                  /* check value on output */
-
-local int inflate_addhistory OF((
-    inflate_blocks_statef *,
-    z_stream *));
-
-local int inflate_packet_flush OF((
-    inflate_blocks_statef *));
-
-/*+++++*/
-/* inftrees.h -- header to use inftrees.c
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* Huffman code lookup table entry--this entry is four bytes for machines
-   that have 16-bit pointers (e.g. PC's in the small or medium model). */
-
-typedef struct inflate_huft_s FAR inflate_huft;
-
-struct inflate_huft_s {
-  union {
-    struct {
-      Byte Exop;        /* number of extra bits or operation */
-      Byte Bits;        /* number of bits in this code or subcode */
-    } what;
-    uInt Nalloc;        /* number of these allocated here */
-    Bytef *pad;         /* pad structure to a power of 2 (4 bytes for */
-  } word;               /*  16-bit, 8 bytes for 32-bit machines) */
-  union {
-    uInt Base;          /* literal, length base, or distance base */
-    inflate_huft *Next; /* pointer to next level of table */
-  } more;
-};
-
-#ifdef DEBUG_ZLIB
-  local uInt inflate_hufts;
-#endif
-
-local int inflate_trees_bits OF((
-    uIntf *,                    /* 19 code lengths */
-    uIntf *,                    /* bits tree desired/actual depth */
-    inflate_huft * FAR *,       /* bits tree result */
-    z_stream *));               /* for zalloc, zfree functions */
-
-local int inflate_trees_dynamic OF((
-    uInt,                       /* number of literal/length codes */
-    uInt,                       /* number of distance codes */
-    uIntf *,                    /* that many (total) code lengths */
-    uIntf *,                    /* literal desired/actual bit depth */
-    uIntf *,                    /* distance desired/actual bit depth */
-    inflate_huft * FAR *,       /* literal/length tree result */
-    inflate_huft * FAR *,       /* distance tree result */
-    z_stream *));               /* for zalloc, zfree functions */
-
-local int inflate_trees_fixed OF((
-    uIntf *,                    /* literal desired/actual bit depth */
-    uIntf *,                    /* distance desired/actual bit depth */
-    inflate_huft * FAR *,       /* literal/length tree result */
-    inflate_huft * FAR *));     /* distance tree result */
-
-local int inflate_trees_free OF((
-    inflate_huft *,             /* tables to free */
-    z_stream *));               /* for zfree function */
-
-
-/*+++++*/
-/* infcodes.h -- header to use infcodes.c
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-struct inflate_codes_state;
-typedef struct inflate_codes_state FAR inflate_codes_statef;
-
-local inflate_codes_statef *inflate_codes_new OF((
-    uInt, uInt,
-    inflate_huft *, inflate_huft *,
-    z_stream *));
-
-local int inflate_codes OF((
-    inflate_blocks_statef *,
-    z_stream *,
-    int));
-
-local void inflate_codes_free OF((
-    inflate_codes_statef *,
-    z_stream *));
-
-
-/*+++++*/
-/* inflate.c -- zlib interface to inflate modules
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* inflate private state */
-struct internal_state {
-
-  /* mode */
-  enum {
-      METHOD,   /* waiting for method byte */
-      FLAG,     /* waiting for flag byte */
-      BLOCKS,   /* decompressing blocks */
-      CHECK4,   /* four check bytes to go */
-      CHECK3,   /* three check bytes to go */
-      CHECK2,   /* two check bytes to go */
-      CHECK1,   /* one check byte to go */
-      DONE,     /* finished check, done */
-      BAD}      /* got an error--stay here */
-    mode;               /* current inflate mode */
-
-  /* mode dependent information */
-  union {
-    uInt method;        /* if FLAGS, method byte */
-    struct {
-      uLong was;                /* computed check value */
-      uLong need;               /* stream check value */
-    } check;            /* if CHECK, check values to compare */
-    uInt marker;        /* if BAD, inflateSync's marker bytes count */
-  } sub;        /* submode */
-
-  /* mode independent information */
-  int  nowrap;          /* flag for no wrapper */
-  uInt wbits;           /* log2(window size)  (8..15, defaults to 15) */
-  inflate_blocks_statef 
-    *blocks;            /* current inflate_blocks state */
-
-};
-
-
-int inflateReset(
-        z_stream *z
-)
-{
-  uLong c;
-
-  if (z == Z_NULL || z->state == Z_NULL)
-    return Z_STREAM_ERROR;
-  z->total_in = z->total_out = 0;
-  z->msg = Z_NULL;
-  z->state->mode = z->state->nowrap ? BLOCKS : METHOD;
-  inflate_blocks_reset(z->state->blocks, z, &c);
-  Trace((stderr, "inflate: reset\n"));
-  return Z_OK;
-}
-
-
-int inflateEnd(
-        z_stream *z
-)
-{
-  uLong c;
-
-  if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL)
-    return Z_STREAM_ERROR;
-  if (z->state->blocks != Z_NULL)
-    inflate_blocks_free(z->state->blocks, z, &c);
-  ZFREE(z, z->state, sizeof(struct internal_state));
-  z->state = Z_NULL;
-  Trace((stderr, "inflate: end\n"));
-  return Z_OK;
-}
-
-
-int inflateInit2(
-        z_stream *z,
-        int w
-)
-{
-  /* initialize state */
-  if (z == Z_NULL)
-    return Z_STREAM_ERROR;
-/*  if (z->zalloc == Z_NULL) z->zalloc = zcalloc; */
-/*  if (z->zfree == Z_NULL) z->zfree = zcfree; */
-  if ((z->state = (struct internal_state FAR *)
-       ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL)
-    return Z_MEM_ERROR;
-  z->state->blocks = Z_NULL;
-
-  /* handle undocumented nowrap option (no zlib header or check) */
-  z->state->nowrap = 0;
-  if (w < 0)
-  {
-    w = - w;
-    z->state->nowrap = 1;
-  }
-
-  /* set window size */
-  if (w < 8 || w > 15)
-  {
-    inflateEnd(z);
-    return Z_STREAM_ERROR;
-  }
-  z->state->wbits = (uInt)w;
-
-  /* create inflate_blocks state */
-  if ((z->state->blocks =
-       inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, 1 << w))
-      == Z_NULL)
-  {
-    inflateEnd(z);
-    return Z_MEM_ERROR;
-  }
-  Trace((stderr, "inflate: allocated\n"));
-
-  /* reset state */
-  inflateReset(z);
-  return Z_OK;
-}
-
-
-int inflateInit(
-        z_stream *z
-)
-{
-  return inflateInit2(z, DEF_WBITS);
-}
-
-
-#define NEEDBYTE {if(z->avail_in==0)goto empty;r=Z_OK;}
-#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++)
-
-int inflate(
-        z_stream *z,
-        int f   
-)
-{
-  int r;
-  uInt b;
-
-  if (z == Z_NULL || z->next_in == Z_NULL)
-    return Z_STREAM_ERROR;
-  r = Z_BUF_ERROR;
-  while (1) switch (z->state->mode)
-  {
-    case METHOD:
-      NEEDBYTE
-      if (((z->state->sub.method = NEXTBYTE) & 0xf) != DEFLATED)
-      {
-        z->state->mode = BAD;
-        z->msg = "unknown compression method";
-        z->state->sub.marker = 5;       /* can't try inflateSync */
-        break;
-      }
-      if ((z->state->sub.method >> 4) + 8 > z->state->wbits)
-      {
-        z->state->mode = BAD;
-        z->msg = "invalid window size";
-        z->state->sub.marker = 5;       /* can't try inflateSync */
-        break;
-      }
-      z->state->mode = FLAG;
-    case FLAG:
-      NEEDBYTE
-      if ((b = NEXTBYTE) & 0x20)
-      {
-        z->state->mode = BAD;
-        z->msg = "invalid reserved bit";
-        z->state->sub.marker = 5;       /* can't try inflateSync */
-        break;
-      }
-      if (((z->state->sub.method << 8) + b) % 31)
-      {
-        z->state->mode = BAD;
-        z->msg = "incorrect header check";
-        z->state->sub.marker = 5;       /* can't try inflateSync */
-        break;
-      }
-      Trace((stderr, "inflate: zlib header ok\n"));
-      z->state->mode = BLOCKS;
-    case BLOCKS:
-      r = inflate_blocks(z->state->blocks, z, r);
-      if (f == Z_PACKET_FLUSH && z->avail_in == 0 && z->avail_out != 0)
-          r = inflate_packet_flush(z->state->blocks);
-      if (r == Z_DATA_ERROR)
-      {
-        z->state->mode = BAD;
-        z->state->sub.marker = 0;       /* can try inflateSync */
-        break;
-      }
-      if (r != Z_STREAM_END)
-        return r;
-      r = Z_OK;
-      inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was);
-      if (z->state->nowrap)
-      {
-        z->state->mode = DONE;
-        break;
-      }
-      z->state->mode = CHECK4;
-    case CHECK4:
-      NEEDBYTE
-      z->state->sub.check.need = (uLong)NEXTBYTE << 24;
-      z->state->mode = CHECK3;
-    case CHECK3:
-      NEEDBYTE
-      z->state->sub.check.need += (uLong)NEXTBYTE << 16;
-      z->state->mode = CHECK2;
-    case CHECK2:
-      NEEDBYTE
-      z->state->sub.check.need += (uLong)NEXTBYTE << 8;
-      z->state->mode = CHECK1;
-    case CHECK1:
-      NEEDBYTE
-      z->state->sub.check.need += (uLong)NEXTBYTE;
-
-      if (z->state->sub.check.was != z->state->sub.check.need)
-      {
-        z->state->mode = BAD;
-        z->msg = "incorrect data check";
-        z->state->sub.marker = 5;       /* can't try inflateSync */
-        break;
-      }
-      Trace((stderr, "inflate: zlib check ok\n"));
-      z->state->mode = DONE;
-    case DONE:
-      return Z_STREAM_END;
-    case BAD:
-      return Z_DATA_ERROR;
-    default:
-      return Z_STREAM_ERROR;
-  }
-
- empty:
-  if (f != Z_PACKET_FLUSH)
-    return r;
-  z->state->mode = BAD;
-  z->state->sub.marker = 0;       /* can try inflateSync */
-  return Z_DATA_ERROR;
-}
-
-/*
- * This subroutine adds the data at next_in/avail_in to the output history
- * without performing any output.  The output buffer must be "caught up";
- * i.e. no pending output (hence s->read equals s->write), and the state must
- * be BLOCKS (i.e. we should be willing to see the start of a series of
- * BLOCKS).  On exit, the output will also be caught up, and the checksum
- * will have been updated if need be.
- */
-
-int inflateIncomp(
-        z_stream *z
-)
-{
-    if (z->state->mode != BLOCKS)
-        return Z_DATA_ERROR;
-    return inflate_addhistory(z->state->blocks, z);
-}
-
-
-int inflateSync(
-        z_stream *z
-)
-{
-  uInt n;       /* number of bytes to look at */
-  Bytef *p;     /* pointer to bytes */
-  uInt m;       /* number of marker bytes found in a row */
-  uLong r, w;   /* temporaries to save total_in and total_out */
-
-  /* set up */
-  if (z == Z_NULL || z->state == Z_NULL)
-    return Z_STREAM_ERROR;
-  if (z->state->mode != BAD)
-  {
-    z->state->mode = BAD;
-    z->state->sub.marker = 0;
-  }
-  if ((n = z->avail_in) == 0)
-    return Z_BUF_ERROR;
-  p = z->next_in;
-  m = z->state->sub.marker;
-
-  /* search */
-  while (n && m < 4)
-  {
-    if (*p == (Byte)(m < 2 ? 0 : 0xff))
-      m++;
-    else if (*p)
-      m = 0;
-    else
-      m = 4 - m;
-    p++, n--;
-  }
-
-  /* restore */
-  z->total_in += p - z->next_in;
-  z->next_in = p;
-  z->avail_in = n;
-  z->state->sub.marker = m;
-
-  /* return no joy or set up to restart on a new block */
-  if (m != 4)
-    return Z_DATA_ERROR;
-  r = z->total_in;  w = z->total_out;
-  inflateReset(z);
-  z->total_in = r;  z->total_out = w;
-  z->state->mode = BLOCKS;
-  return Z_OK;
-}
-
-#undef NEEDBYTE
-#undef NEXTBYTE
-
-/*+++++*/
-/* infutil.h -- types and macros common to blocks and codes
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-/* inflate blocks semi-private state */
-struct inflate_blocks_state {
-
-  /* mode */
-  enum {
-      TYPE,     /* get type bits (3, including end bit) */
-      LENS,     /* get lengths for stored */
-      STORED,   /* processing stored block */
-      TABLE,    /* get table lengths */
-      BTREE,    /* get bit lengths tree for a dynamic block */
-      DTREE,    /* get length, distance trees for a dynamic block */
-      CODES,    /* processing fixed or dynamic block */
-      DRY,      /* output remaining window bytes */
-      DONEB,     /* finished last block, done */
-      BADB}      /* got a data error--stuck here */
-    mode;               /* current inflate_block mode */
-
-  /* mode dependent information */
-  union {
-    uInt left;          /* if STORED, bytes left to copy */
-    struct {
-      uInt table;               /* table lengths (14 bits) */
-      uInt index;               /* index into blens (or border) */
-      uIntf *blens;             /* bit lengths of codes */
-      uInt bb;                  /* bit length tree depth */
-      inflate_huft *tb;         /* bit length decoding tree */
-      int nblens;               /* # elements allocated at blens */
-    } trees;            /* if DTREE, decoding info for trees */
-    struct {
-      inflate_huft *tl, *td;    /* trees to free */
-      inflate_codes_statef 
-         *codes;
-    } decode;           /* if CODES, current state */
-  } sub;                /* submode */
-  uInt last;            /* true if this block is the last block */
-
-  /* mode independent information */
-  uInt bitk;            /* bits in bit buffer */
-  uLong bitb;           /* bit buffer */
-  Bytef *window;        /* sliding window */
-  Bytef *end;           /* one byte after sliding window */
-  Bytef *read;          /* window read pointer */
-  Bytef *write;         /* window write pointer */
-  check_func checkfn;   /* check function */
-  uLong check;          /* check on output */
-
-};
-
-
-/* defines for inflate input/output */
-/*   update pointers and return */
-#define UPDBITS {s->bitb=b;s->bitk=k;}
-#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
-#define UPDOUT {s->write=q;}
-#define UPDATE {UPDBITS UPDIN UPDOUT}
-#define LEAVE {UPDATE return inflate_flush(s,z,r);}
-/*   get bytes and bits */
-#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;}
-#define NEEDBYTE {if(n)r=Z_OK;else LEAVE}
-#define NEXTBYTE (n--,*p++)
-#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}}
-#define DUMPBITS(j) {b>>=(j);k-=(j);}
-/*   output bytes */
-#define WAVAIL (q<s->read?s->read-q-1:s->end-q)
-#define LOADOUT {q=s->write;m=WAVAIL;}
-#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=WAVAIL;}}
-#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT}
-#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;}
-#define OUTBYTE(a) {*q++=(Byte)(a);m--;}
-/*   load local pointers */
-#define LOAD {LOADIN LOADOUT}
-
-/* And'ing with mask[n] masks the lower n bits */
-local uInt inflate_mask[] = {
-    0x0000,
-    0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
-    0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
-};
-
-/* copy as much as possible from the sliding window to the output area */
-local int inflate_flush OF((
-    inflate_blocks_statef *,
-    z_stream *,
-    int));
-
-/*+++++*/
-/* inffast.h -- header to use inffast.c
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* WARNING: this file should *not* be used by applications. It is
-   part of the implementation of the compression library and is
-   subject to change. Applications should only use zlib.h.
- */
-
-local int inflate_fast OF((
-    uInt,
-    uInt,
-    inflate_huft *,
-    inflate_huft *,
-    inflate_blocks_statef *,
-    z_stream *));
-
-
-/*+++++*/
-/* infblock.c -- interpret and process block types to last block
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* Table for deflate from PKZIP's appnote.txt. */
-local uInt border[] = { /* Order of the bit length code lengths */
-        16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-/*
-   Notes beyond the 1.93a appnote.txt:
-
-   1. Distance pointers never point before the beginning of the output
-      stream.
-   2. Distance pointers can point back across blocks, up to 32k away.
-   3. There is an implied maximum of 7 bits for the bit length table and
-      15 bits for the actual data.
-   4. If only one code exists, then it is encoded using one bit.  (Zero
-      would be more efficient, but perhaps a little confusing.)  If two
-      codes exist, they are coded using one bit each (0 and 1).
-   5. There is no way of sending zero distance codes--a dummy must be
-      sent if there are none.  (History: a pre 2.0 version of PKZIP would
-      store blocks with no distance codes, but this was discovered to be
-      too harsh a criterion.)  Valid only for 1.93a.  2.04c does allow
-      zero distance codes, which is sent as one code of zero bits in
-      length.
-   6. There are up to 286 literal/length codes.  Code 256 represents the
-      end-of-block.  Note however that the static length tree defines
-      288 codes just to fill out the Huffman codes.  Codes 286 and 287
-      cannot be used though, since there is no length base or extra bits
-      defined for them.  Similarily, there are up to 30 distance codes.
-      However, static trees define 32 codes (all 5 bits) to fill out the
-      Huffman codes, but the last two had better not show up in the data.
-   7. Unzip can check dynamic Huffman blocks for complete code sets.
-      The exception is that a single code would not be complete (see #4).
-   8. The five bits following the block type is really the number of
-      literal codes sent minus 257.
-   9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
-      (1+6+6).  Therefore, to output three times the length, you output
-      three codes (1+1+1), whereas to output four times the same length,
-      you only need two codes (1+3).  Hmm.
-  10. In the tree reconstruction algorithm, Code = Code + Increment
-      only if BitLength(i) is not zero.  (Pretty obvious.)
-  11. Correction: 4 Bits: # of Bit Length codes - 4     (4 - 19)
-  12. Note: length code 284 can represent 227-258, but length code 285
-      really is 258.  The last length deserves its own, short code
-      since it gets used a lot in very redundant files.  The length
-      258 is special since 258 - 3 (the min match length) is 255.
-  13. The literal/length and distance code bit lengths are read as a
-      single stream of lengths.  It is possible (and advantageous) for
-      a repeat code (16, 17, or 18) to go across the boundary between
-      the two sets of lengths.
- */
-
-
-local void inflate_blocks_reset(
-        inflate_blocks_statef *s,
-        z_stream *z,
-        uLongf *c
-)
-{
-  if (s->checkfn != Z_NULL)
-    *c = s->check;
-  if (s->mode == BTREE || s->mode == DTREE)
-    ZFREE(z, s->sub.trees.blens, s->sub.trees.nblens * sizeof(uInt));
-  if (s->mode == CODES)
-  {
-    inflate_codes_free(s->sub.decode.codes, z);
-    inflate_trees_free(s->sub.decode.td, z);
-    inflate_trees_free(s->sub.decode.tl, z);
-  }
-  s->mode = TYPE;
-  s->bitk = 0;
-  s->bitb = 0;
-  s->read = s->write = s->window;
-  if (s->checkfn != Z_NULL)
-    s->check = (*s->checkfn)(0L, Z_NULL, 0);
-  Trace((stderr, "inflate:   blocks reset\n"));
-}
-
-
-local inflate_blocks_statef *inflate_blocks_new(
-        z_stream *z,
-        check_func c,
-        uInt w
-)
-{
-  inflate_blocks_statef *s;
-
-  if ((s = (inflate_blocks_statef *)ZALLOC
-       (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL)
-    return s;
-  if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL)
-  {
-    ZFREE(z, s, sizeof(struct inflate_blocks_state));
-    return Z_NULL;
-  }
-  s->end = s->window + w;
-  s->checkfn = c;
-  s->mode = TYPE;
-  Trace((stderr, "inflate:   blocks allocated\n"));
-  inflate_blocks_reset(s, z, &s->check);
-  return s;
-}
-
-
-local int inflate_blocks(
-        inflate_blocks_statef *s,
-        z_stream *z,
-        int r
-)
-{
-  uInt t;               /* temporary storage */
-  uLong b;              /* bit buffer */
-  uInt k;               /* bits in bit buffer */
-  Bytef *p;             /* input data pointer */
-  uInt n;               /* bytes available there */
-  Bytef *q;             /* output window write pointer */
-  uInt m;               /* bytes to end of window or read pointer */
-
-  /* copy input/output information to locals (UPDATE macro restores) */
-  LOAD
-
-  /* process input based on current state */
-  while (1) switch (s->mode)
-  {
-    case TYPE:
-      NEEDBITS(3)
-      t = (uInt)b & 7;
-      s->last = t & 1;
-      switch (t >> 1)
-      {
-        case 0:                         /* stored */
-          Trace((stderr, "inflate:     stored block%s\n",
-                 s->last ? " (last)" : ""));
-          DUMPBITS(3)
-          t = k & 7;                    /* go to byte boundary */
-          DUMPBITS(t)
-          s->mode = LENS;               /* get length of stored block */
-          break;
-        case 1:                         /* fixed */
-          Trace((stderr, "inflate:     fixed codes block%s\n",
-                 s->last ? " (last)" : ""));
-          {
-            uInt bl, bd;
-            inflate_huft *tl, *td;
-
-            inflate_trees_fixed(&bl, &bd, &tl, &td);
-            s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
-            if (s->sub.decode.codes == Z_NULL)
-            {
-              r = Z_MEM_ERROR;
-              LEAVE
-            }
-            s->sub.decode.tl = Z_NULL;  /* don't try to free these */
-            s->sub.decode.td = Z_NULL;
-          }
-          DUMPBITS(3)
-          s->mode = CODES;
-          break;
-        case 2:                         /* dynamic */
-          Trace((stderr, "inflate:     dynamic codes block%s\n",
-                 s->last ? " (last)" : ""));
-          DUMPBITS(3)
-          s->mode = TABLE;
-          break;
-        case 3:                         /* illegal */
-          DUMPBITS(3)
-          s->mode = BADB;
-          z->msg = "invalid block type";
-          r = Z_DATA_ERROR;
-          LEAVE
-      }
-      break;
-    case LENS:
-      NEEDBITS(32)
-      if (((~b) >> 16) != (b & 0xffff))
-      {
-        s->mode = BADB;
-        z->msg = "invalid stored block lengths";
-        r = Z_DATA_ERROR;
-        LEAVE
-      }
-      s->sub.left = (uInt)b & 0xffff;
-      b = k = 0;                      /* dump bits */
-      Tracev((stderr, "inflate:       stored length %u\n", s->sub.left));
-      s->mode = s->sub.left ? STORED : TYPE;
-      break;
-    case STORED:
-      if (n == 0)
-        LEAVE
-      NEEDOUT
-      t = s->sub.left;
-      if (t > n) t = n;
-      if (t > m) t = m;
-      zmemcpy(q, p, t);
-      p += t;  n -= t;
-      q += t;  m -= t;
-      if ((s->sub.left -= t) != 0)
-        break;
-      Tracev((stderr, "inflate:       stored end, %lu total out\n",
-              z->total_out + (q >= s->read ? q - s->read :
-              (s->end - s->read) + (q - s->window))));
-      s->mode = s->last ? DRY : TYPE;
-      break;
-    case TABLE:
-      NEEDBITS(14)
-      s->sub.trees.table = t = (uInt)b & 0x3fff;
-#ifndef PKZIP_BUG_WORKAROUND
-      if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
-      {
-        s->mode = BADB;
-        z->msg = "too many length or distance symbols";
-        r = Z_DATA_ERROR;
-        LEAVE
-      }
-#endif
-      t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
-      if (t < 19)
-        t = 19;
-      if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
-      {
-        r = Z_MEM_ERROR;
-        LEAVE
-      }
-      s->sub.trees.nblens = t;
-      DUMPBITS(14)
-      s->sub.trees.index = 0;
-      Tracev((stderr, "inflate:       table sizes ok\n"));
-      s->mode = BTREE;
-    case BTREE:
-      while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
-      {
-        NEEDBITS(3)
-        s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
-        DUMPBITS(3)
-      }
-      while (s->sub.trees.index < 19)
-        s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
-      s->sub.trees.bb = 7;
-      t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
-                             &s->sub.trees.tb, z);
-      if (t != Z_OK)
-      {
-        r = t;
-        if (r == Z_DATA_ERROR)
-          s->mode = BADB;
-        LEAVE
-      }
-      s->sub.trees.index = 0;
-      Tracev((stderr, "inflate:       bits tree ok\n"));
-      s->mode = DTREE;
-    case DTREE:
-      while (t = s->sub.trees.table,
-             s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
-      {
-        inflate_huft *h;
-        uInt i, j, c;
-
-        t = s->sub.trees.bb;
-        NEEDBITS(t)
-        h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
-        t = h->word.what.Bits;
-        c = h->more.Base;
-        if (c < 16)
-        {
-          DUMPBITS(t)
-          s->sub.trees.blens[s->sub.trees.index++] = c;
-        }
-        else /* c == 16..18 */
-        {
-          i = c == 18 ? 7 : c - 14;
-          j = c == 18 ? 11 : 3;
-          NEEDBITS(t + i)
-          DUMPBITS(t)
-          j += (uInt)b & inflate_mask[i];
-          DUMPBITS(i)
-          i = s->sub.trees.index;
-          t = s->sub.trees.table;
-          if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
-              (c == 16 && i < 1))
-          {
-            s->mode = BADB;
-            z->msg = "invalid bit length repeat";
-            r = Z_DATA_ERROR;
-            LEAVE
-          }
-          c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
-          do {
-            s->sub.trees.blens[i++] = c;
-          } while (--j);
-          s->sub.trees.index = i;
-        }
-      }
-      inflate_trees_free(s->sub.trees.tb, z);
-      s->sub.trees.tb = Z_NULL;
-      {
-        uInt bl, bd;
-        inflate_huft *tl, *td;
-        inflate_codes_statef *c;
-
-        bl = 9;         /* must be <= 9 for lookahead assumptions */
-        bd = 6;         /* must be <= 9 for lookahead assumptions */
-        t = s->sub.trees.table;
-        t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
-                                  s->sub.trees.blens, &bl, &bd, &tl, &td, z);
-        if (t != Z_OK)
-        {
-          if (t == (uInt)Z_DATA_ERROR)
-            s->mode = BADB;
-          r = t;
-          LEAVE
-        }
-        Tracev((stderr, "inflate:       trees ok\n"));
-        if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
-        {
-          inflate_trees_free(td, z);
-          inflate_trees_free(tl, z);
-          r = Z_MEM_ERROR;
-          LEAVE
-        }
-        ZFREE(z, s->sub.trees.blens, s->sub.trees.nblens * sizeof(uInt));
-        s->sub.decode.codes = c;
-        s->sub.decode.tl = tl;
-        s->sub.decode.td = td;
-      }
-      s->mode = CODES;
-    case CODES:
-      UPDATE
-      if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
-        return inflate_flush(s, z, r);
-      r = Z_OK;
-      inflate_codes_free(s->sub.decode.codes, z);
-      inflate_trees_free(s->sub.decode.td, z);
-      inflate_trees_free(s->sub.decode.tl, z);
-      LOAD
-      Tracev((stderr, "inflate:       codes end, %lu total out\n",
-              z->total_out + (q >= s->read ? q - s->read :
-              (s->end - s->read) + (q - s->window))));
-      if (!s->last)
-      {
-        s->mode = TYPE;
-        break;
-      }
-      if (k > 7)              /* return unused byte, if any */
-      {
-        Assert(k < 16, "inflate_codes grabbed too many bytes")
-        k -= 8;
-        n++;
-        p--;                    /* can always return one */
-      }
-      s->mode = DRY;
-    case DRY:
-      FLUSH
-      if (s->read != s->write)
-        LEAVE
-      s->mode = DONEB;
-    case DONEB:
-      r = Z_STREAM_END;
-      LEAVE
-    case BADB:
-      r = Z_DATA_ERROR;
-      LEAVE
-    default:
-      r = Z_STREAM_ERROR;
-      LEAVE
-  }
-}
-
-
-local int inflate_blocks_free(
-        inflate_blocks_statef *s,
-        z_stream *z,
-        uLongf *c
-)
-{
-  inflate_blocks_reset(s, z, c);
-  ZFREE(z, s->window, s->end - s->window);
-  ZFREE(z, s, sizeof(struct inflate_blocks_state));
-  Trace((stderr, "inflate:   blocks freed\n"));
-  return Z_OK;
-}
-
-/*
- * This subroutine adds the data at next_in/avail_in to the output history
- * without performing any output.  The output buffer must be "caught up";
- * i.e. no pending output (hence s->read equals s->write), and the state must
- * be BLOCKS (i.e. we should be willing to see the start of a series of
- * BLOCKS).  On exit, the output will also be caught up, and the checksum
- * will have been updated if need be.
- */
-local int inflate_addhistory(
-        inflate_blocks_statef *s,
-        z_stream *z
-)
-{
-    uLong b;              /* bit buffer */  /* NOT USED HERE */
-    uInt k;               /* bits in bit buffer */ /* NOT USED HERE */
-    uInt t;               /* temporary storage */
-    Bytef *p;             /* input data pointer */
-    uInt n;               /* bytes available there */
-    Bytef *q;             /* output window write pointer */
-    uInt m;               /* bytes to end of window or read pointer */
-
-    if (s->read != s->write)
-        return Z_STREAM_ERROR;
-    if (s->mode != TYPE)
-        return Z_DATA_ERROR;
-
-    /* we're ready to rock */
-    LOAD
-    /* while there is input ready, copy to output buffer, moving
-     * pointers as needed.
-     */
-    while (n) {
-        t = n;  /* how many to do */
-        /* is there room until end of buffer? */
-        if (t > m) t = m;
-        /* update check information */
-        if (s->checkfn != Z_NULL)
-            s->check = (*s->checkfn)(s->check, q, t);
-        zmemcpy(q, p, t);
-        q += t;
-        p += t;
-        n -= t;
-        z->total_out += t;
-        s->read = q;    /* drag read pointer forward */
-/*      WRAP  */        /* expand WRAP macro by hand to handle s->read */
-        if (q == s->end) {
-            s->read = q = s->window;
-            m = WAVAIL;
-        }
-    }
-    UPDATE
-    return Z_OK;
-}
-
-
-/*
- * At the end of a Deflate-compressed PPP packet, we expect to have seen
- * a `stored' block type value but not the (zero) length bytes.
- */
-local int inflate_packet_flush(
-        inflate_blocks_statef *s
-)
-{
-    if (s->mode != LENS)
-        return Z_DATA_ERROR;
-    s->mode = TYPE;
-    return Z_OK;
-}
-
-
-/*+++++*/
-/* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define base more.Base
-#define next more.Next
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-
-local int huft_build OF((
-    uIntf *,            /* code lengths in bits */
-    uInt,               /* number of codes */
-    uInt,               /* number of "simple" codes */
-    uIntf *,            /* list of base values for non-simple codes */
-    uIntf *,            /* list of extra bits for non-simple codes */
-    inflate_huft * FAR*,/* result: starting table */
-    uIntf *,            /* maximum lookup bits (returns actual) */
-    z_stream *));       /* for zalloc function */
-
-local voidpf falloc OF((
-    voidpf,             /* opaque pointer (not used) */
-    uInt,               /* number of items */
-    uInt));             /* size of item */
-
-local void ffree OF((
-    voidpf q,           /* opaque pointer (not used) */
-    voidpf p,           /* what to free (not used) */
-    uInt n));           /* number of bytes (not used) */
-
-/* Tables for deflate from PKZIP's appnote.txt. */
-local uInt cplens[] = { /* Copy lengths for literal codes 257..285 */
-        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
-        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
-        /* actually lengths - 2; also see note #13 above about 258 */
-local uInt cplext[] = { /* Extra bits for literal codes 257..285 */
-        0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
-        3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 192, 192}; /* 192==invalid */
-local uInt cpdist[] = { /* Copy offsets for distance codes 0..29 */
-        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
-        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
-        8193, 12289, 16385, 24577};
-local uInt cpdext[] = { /* Extra bits for distance codes */
-        0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
-        7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
-        12, 12, 13, 13};
-
-/*
-   Huffman code decoding is performed using a multi-level table lookup.
-   The fastest way to decode is to simply build a lookup table whose
-   size is determined by the longest code.  However, the time it takes
-   to build this table can also be a factor if the data being decoded
-   is not very long.  The most common codes are necessarily the
-   shortest codes, so those codes dominate the decoding time, and hence
-   the speed.  The idea is you can have a shorter table that decodes the
-   shorter, more probable codes, and then point to subsidiary tables for
-   the longer codes.  The time it costs to decode the longer codes is
-   then traded against the time it takes to make longer tables.
-
-   This results of this trade are in the variables lbits and dbits
-   below.  lbits is the number of bits the first level table for literal/
-   length codes can decode in one step, and dbits is the same thing for
-   the distance codes.  Subsequent tables are also less than or equal to
-   those sizes.  These values may be adjusted either when all of the
-   codes are shorter than that, in which case the longest code length in
-   bits is used, or when the shortest code is *longer* than the requested
-   table size, in which case the length of the shortest code in bits is
-   used.
-
-   There are two different values for the two tables, since they code a
-   different number of possibilities each.  The literal/length table
-   codes 286 possible values, or in a flat code, a little over eight
-   bits.  The distance table codes 30 possible values, or a little less
-   than five bits, flat.  The optimum values for speed end up being
-   about one bit more than those, so lbits is 8+1 and dbits is 5+1.
-   The optimum values may differ though from machine to machine, and
-   possibly even between compilers.  Your mileage may vary.
- */
-
-
-/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */
-#define BMAX 15         /* maximum bit length of any code */
-#define N_MAX 288       /* maximum number of codes in any set */
-
-#ifdef DEBUG_ZLIB
-  uInt inflate_hufts;
-#endif
-
-local int huft_build(
-        uIntf *b,               /* code lengths in bits (all assumed <= BMAX) */
-        uInt n,                 /* number of codes (assumed <= N_MAX) */
-        uInt s,                 /* number of simple-valued codes (0..s-1) */
-        uIntf *d,               /* list of base values for non-simple codes */
-        uIntf *e,               /* list of extra bits for non-simple codes */
-        inflate_huft * FAR *t,  /* result: starting table */
-        uIntf *m,               /* maximum lookup bits, returns actual */
-        z_stream *zs            /* for zalloc function */
-)
-/* Given a list of code lengths and a maximum table size, make a set of
-   tables to decode that set of codes.  Return Z_OK on success, Z_BUF_ERROR
-   if the given code set is incomplete (the tables are still built in this
-   case), Z_DATA_ERROR if the input is invalid (all zero length codes or an
-   over-subscribed set of lengths), or Z_MEM_ERROR if not enough memory. */
-{
-
-  uInt a;                       /* counter for codes of length k */
-  uInt c[BMAX+1];               /* bit length count table */
-  uInt f;                       /* i repeats in table every f entries */
-  int g;                        /* maximum code length */
-  int h;                        /* table level */
-  register uInt i;              /* counter, current code */
-  register uInt j;              /* counter */
-  register int k;               /* number of bits in current code */
-  int l;                        /* bits per table (returned in m) */
-  register uIntf *p;            /* pointer into c[], b[], or v[] */
-  inflate_huft *q;              /* points to current table */
-  struct inflate_huft_s r;      /* table entry for structure assignment */
-  inflate_huft *u[BMAX];        /* table stack */
-  uInt v[N_MAX];                /* values in order of bit length */
-  register int w;               /* bits before this table == (l * h) */
-  uInt x[BMAX+1];               /* bit offsets, then code stack */
-  uIntf *xp;                    /* pointer into x */
-  int y;                        /* number of dummy codes added */
-  uInt z;                       /* number of entries in current table */
-
-
-  /* Generate counts for each bit length */
-  p = c;
-#define C0 *p++ = 0;
-#define C2 C0 C0 C0 C0
-#define C4 C2 C2 C2 C2
-  C4                            /* clear c[]--assume BMAX+1 is 16 */
-  p = b;  i = n;
-  do {
-    c[*p++]++;                  /* assume all entries <= BMAX */
-  } while (--i);
-  if (c[0] == n)                /* null input--all zero length codes */
-  {
-    *t = (inflate_huft *)Z_NULL;
-    *m = 0;
-    return Z_DATA_ERROR;
-  }
-
-
-  /* Find minimum and maximum length, bound *m by those */
-  l = *m;
-  for (j = 1; j <= BMAX; j++)
-    if (c[j])
-      break;
-  k = j;                        /* minimum code length */
-  if ((uInt)l < j)
-    l = j;
-  for (i = BMAX; i; i--)
-    if (c[i])
-      break;
-  g = i;                        /* maximum code length */
-  if ((uInt)l > i)
-    l = i;
-  *m = l;
-
-
-  /* Adjust last length count to fill out codes, if needed */
-  for (y = 1 << j; j < i; j++, y <<= 1)
-    if ((y -= c[j]) < 0)
-      return Z_DATA_ERROR;
-  if ((y -= c[i]) < 0)
-    return Z_DATA_ERROR;
-  c[i] += y;
-
-
-  /* Generate starting offsets into the value table for each length */
-  x[1] = j = 0;
-  p = c + 1;  xp = x + 2;
-  while (--i) {                 /* note that i == g from above */
-    *xp++ = (j += *p++);
-  }
-
-
-  /* Make a table of values in order of bit lengths */
-  p = b;  i = 0;
-  do {
-    if ((j = *p++) != 0)
-      v[x[j]++] = i;
-  } while (++i < n);
-  n = x[g];                     /* set n to length of v */
-
-
-  /* Generate the Huffman codes and for each, make the table entries */
-  x[0] = i = 0;                 /* first Huffman code is zero */
-  p = v;                        /* grab values in bit order */
-  h = -1;                       /* no tables yet--level -1 */
-  w = -l;                       /* bits decoded == (l * h) */
-  u[0] = (inflate_huft *)Z_NULL;        /* just to keep compilers happy */
-  q = (inflate_huft *)Z_NULL;   /* ditto */
-  z = 0;                        /* ditto */
-
-  /* go through the bit lengths (k already is bits in shortest code) */
-  for (; k <= g; k++)
-  {
-    a = c[k];
-    while (a--)
-    {
-      /* here i is the Huffman code of length k bits for value *p */
-      /* make tables up to required level */
-      while (k > w + l)
-      {
-        h++;
-        w += l;                 /* previous table always l bits */
-
-        /* compute minimum size table less than or equal to l bits */
-        z = (z = g - w) > (uInt)l ? l : z;      /* table size upper limit */
-        if ((f = 1 << (j = k - w)) > a + 1)     /* try a k-w bit table */
-        {                       /* too few codes for k-w bit table */
-          f -= a + 1;           /* deduct codes from patterns left */
-          xp = c + k;
-          if (j < z)
-            while (++j < z)     /* try smaller tables up to z bits */
-            {
-              if ((f <<= 1) <= *++xp)
-                break;          /* enough codes to use up j bits */
-              f -= *xp;         /* else deduct codes from patterns */
-            }
-        }
-        z = 1 << j;             /* table entries for j-bit table */
-
-        /* allocate and link in new table */
-        if ((q = (inflate_huft *)ZALLOC
-             (zs,z + 1,sizeof(inflate_huft))) == Z_NULL)
-        {
-          if (h)
-            inflate_trees_free(u[0], zs);
-          return Z_MEM_ERROR;   /* not enough memory */
-        }
-        q->word.Nalloc = z + 1;
-#ifdef DEBUG_ZLIB
-        inflate_hufts += z + 1;
-#endif
-        *t = q + 1;             /* link to list for huft_free() */
-        *(t = &(q->next)) = Z_NULL;
-        u[h] = ++q;             /* table starts after link */
-
-        /* connect to last table, if there is one */
-        if (h)
-        {
-          x[h] = i;             /* save pattern for backing up */
-          r.bits = (Byte)l;     /* bits to dump before this table */
-          r.exop = (Byte)j;     /* bits in this table */
-          r.next = q;           /* pointer to this table */
-          j = i >> (w - l);     /* (get around Turbo C bug) */
-          u[h-1][j] = r;        /* connect to last table */
-        }
-      }
-
-      /* set up table entry in r */
-      r.bits = (Byte)(k - w);
-      if (p >= v + n)
-        r.exop = 128 + 64;      /* out of values--invalid code */
-      else if (*p < s)
-      {
-        r.exop = (Byte)(*p < 256 ? 0 : 32 + 64);     /* 256 is end-of-block */
-        r.base = *p++;          /* simple code is just the value */
-      }
-      else
-      {
-        r.exop = (Byte)e[*p - s] + 16 + 64; /* non-simple--look up in lists */
-        r.base = d[*p++ - s];
-      }
-
-      /* fill code-like entries with r */
-      f = 1 << (k - w);
-      for (j = i >> w; j < z; j += f)
-        q[j] = r;
-
-      /* backwards increment the k-bit code i */
-      for (j = 1 << (k - 1); i & j; j >>= 1)
-        i ^= j;
-      i ^= j;
-
-      /* backup over finished tables */
-      while ((i & ((1 << w) - 1)) != x[h])
-      {
-        h--;                    /* don't need to update q */
-        w -= l;
-      }
-    }
-  }
-
-
-  /* Return Z_BUF_ERROR if we were given an incomplete table */
-  return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK;
-}
-
-
-local int inflate_trees_bits(
-        uIntf *c,               /* 19 code lengths */
-        uIntf *bb,              /* bits tree desired/actual depth */
-        inflate_huft * FAR *tb, /* bits tree result */
-        z_stream *z             /* for zfree function */
-)
-{
-  int r;
-
-  r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, tb, bb, z);
-  if (r == Z_DATA_ERROR)
-    z->msg = "oversubscribed dynamic bit lengths tree";
-  else if (r == Z_BUF_ERROR)
-  {
-    inflate_trees_free(*tb, z);
-    z->msg = "incomplete dynamic bit lengths tree";
-    r = Z_DATA_ERROR;
-  }
-  return r;
-}
-
-
-local int inflate_trees_dynamic(
-        uInt nl,                /* number of literal/length codes */
-        uInt nd,                /* number of distance codes */
-        uIntf *c,               /* that many (total) code lengths */
-        uIntf *bl,              /* literal desired/actual bit depth */
-        uIntf *bd,              /* distance desired/actual bit depth */
-        inflate_huft * FAR *tl, /* literal/length tree result */
-        inflate_huft * FAR *td, /* distance tree result */
-        z_stream *z             /* for zfree function */
-)
-{
-  int r;
-
-  /* build literal/length tree */
-  if ((r = huft_build(c, nl, 257, cplens, cplext, tl, bl, z)) != Z_OK)
-  {
-    if (r == Z_DATA_ERROR)
-      z->msg = "oversubscribed literal/length tree";
-    else if (r == Z_BUF_ERROR)
-    {
-      inflate_trees_free(*tl, z);
-      z->msg = "incomplete literal/length tree";
-      r = Z_DATA_ERROR;
-    }
-    return r;
-  }
-
-  /* build distance tree */
-  if ((r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, z)) != Z_OK)
-  {
-    if (r == Z_DATA_ERROR)
-      z->msg = "oversubscribed literal/length tree";
-    else if (r == Z_BUF_ERROR) {
-#ifdef PKZIP_BUG_WORKAROUND
-      r = Z_OK;
-    }
-#else
-      inflate_trees_free(*td, z);
-      z->msg = "incomplete literal/length tree";
-      r = Z_DATA_ERROR;
-    }
-    inflate_trees_free(*tl, z);
-    return r;
-#endif
-  }
-
-  /* done */
-  return Z_OK;
-}
-
-
-/* build fixed tables only once--keep them here */
-local int fixed_lock = 0;
-local int fixed_built = 0;
-#define FIXEDH 530      /* number of hufts used by fixed tables */
-local uInt fixed_left = FIXEDH;
-local inflate_huft fixed_mem[FIXEDH];
-local uInt fixed_bl;
-local uInt fixed_bd;
-local inflate_huft *fixed_tl;
-local inflate_huft *fixed_td;
-
-
-local voidpf falloc(
-        voidpf q,       /* opaque pointer (not used) */
-        uInt n,         /* number of items */
-        uInt s          /* size of item */
-)
-{
-  Assert(s == sizeof(inflate_huft) && n <= fixed_left,
-         "inflate_trees falloc overflow");
-  if (q) s++; /* to make some compilers happy */
-  fixed_left -= n;
-  return (voidpf)(fixed_mem + fixed_left);
-}
-
-
-local void ffree(
-        voidpf q,
-        voidpf p,
-        uInt n
-)
-{
-  Assert(0, "inflate_trees ffree called!");
-  if (q) q = p; /* to make some compilers happy */
-}
-
-
-local int inflate_trees_fixed(
-        uIntf *bl,               /* literal desired/actual bit depth */
-        uIntf *bd,               /* distance desired/actual bit depth */
-        inflate_huft * FAR *tl,  /* literal/length tree result */
-        inflate_huft * FAR *td   /* distance tree result */
-)
-{
-  /* build fixed tables if not built already--lock out other instances */
-  while (++fixed_lock > 1)
-    fixed_lock--;
-  if (!fixed_built)
-  {
-    int k;              /* temporary variable */
-    unsigned c[288];    /* length list for huft_build */
-    z_stream z;         /* for falloc function */
-
-    /* set up fake z_stream for memory routines */
-    z.zalloc = falloc;
-    z.zfree = ffree;
-    z.opaque = Z_NULL;
-
-    /* literal table */
-    for (k = 0; k < 144; k++)
-      c[k] = 8;
-    for (; k < 256; k++)
-      c[k] = 9;
-    for (; k < 280; k++)
-      c[k] = 7;
-    for (; k < 288; k++)
-      c[k] = 8;
-    fixed_bl = 7;
-    huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, &z);
-
-    /* distance table */
-    for (k = 0; k < 30; k++)
-      c[k] = 5;
-    fixed_bd = 5;
-    huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, &z);
-
-    /* done */
-    fixed_built = 1;
-  }
-  fixed_lock--;
-  *bl = fixed_bl;
-  *bd = fixed_bd;
-  *tl = fixed_tl;
-  *td = fixed_td;
-  return Z_OK;
-}
-
-
-local int inflate_trees_free(
-        inflate_huft *t,        /* table to free */
-        z_stream *z             /* for zfree function */
-)
-/* Free the malloc'ed tables built by huft_build(), which makes a linked
-   list of the tables it made, with the links in a dummy first entry of
-   each table. */
-{
-  register inflate_huft *p, *q;
-
-  /* Go through linked list, freeing from the malloced (t[-1]) address. */
-  p = t;
-  while (p != Z_NULL)
-  {
-    q = (--p)->next;
-    ZFREE(z, p, p->word.Nalloc * sizeof(inflate_huft));
-    p = q;
-  } 
-  return Z_OK;
-}
-
-/*+++++*/
-/* infcodes.c -- process literals and length/distance pairs
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define base more.Base
-#define next more.Next
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* inflate codes private state */
-struct inflate_codes_state {
-
-  /* mode */
-  enum {        /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
-      START,    /* x: set up for LEN */
-      LEN,      /* i: get length/literal/eob next */
-      LENEXT,   /* i: getting length extra (have base) */
-      DIST,     /* i: get distance next */
-      DISTEXT,  /* i: getting distance extra */
-      COPY,     /* o: copying bytes in window, waiting for space */
-      LIT,      /* o: got literal, waiting for output space */
-      WASH,     /* o: got eob, possibly still output waiting */
-      END,      /* x: got eob and all data flushed */
-      BADCODE}  /* x: got error */
-    mode;               /* current inflate_codes mode */
-
-  /* mode dependent information */
-  uInt len;
-  union {
-    struct {
-      inflate_huft *tree;       /* pointer into tree */
-      uInt need;                /* bits needed */
-    } code;             /* if LEN or DIST, where in tree */
-    uInt lit;           /* if LIT, literal */
-    struct {
-      uInt get;                 /* bits to get for extra */
-      uInt dist;                /* distance back to copy from */
-    } copy;             /* if EXT or COPY, where and how much */
-  } sub;                /* submode */
-
-  /* mode independent information */
-  Byte lbits;           /* ltree bits decoded per branch */
-  Byte dbits;           /* dtree bits decoder per branch */
-  inflate_huft *ltree;          /* literal/length/eob tree */
-  inflate_huft *dtree;          /* distance tree */
-
-};
-
-
-local inflate_codes_statef *inflate_codes_new(
-        uInt bl,
-        uInt bd,
-        inflate_huft *tl,
-        inflate_huft *td,
-        z_stream *z
-)
-{
-  inflate_codes_statef *c;
-
-  if ((c = (inflate_codes_statef *)
-       ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL)
-  {
-    c->mode = START;
-    c->lbits = (Byte)bl;
-    c->dbits = (Byte)bd;
-    c->ltree = tl;
-    c->dtree = td;
-    Tracev((stderr, "inflate:       codes new\n"));
-  }
-  return c;
-}
-
-
-local int inflate_codes(
-        inflate_blocks_statef *s,
-        z_stream *z,
-        int r
-)
-{
-  uInt j;               /* temporary storage */
-  inflate_huft *t;      /* temporary pointer */
-  uInt e;               /* extra bits or operation */
-  uLong b;              /* bit buffer */
-  uInt k;               /* bits in bit buffer */
-  Bytef *p;             /* input data pointer */
-  uInt n;               /* bytes available there */
-  Bytef *q;             /* output window write pointer */
-  uInt m;               /* bytes to end of window or read pointer */
-  Bytef *f;             /* pointer to copy strings from */
-  inflate_codes_statef *c = s->sub.decode.codes;  /* codes state */
-
-  /* copy input/output information to locals (UPDATE macro restores) */
-  LOAD
-
-  /* process input and output based on current state */
-  while (1) switch (c->mode)
-  {             /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
-    case START:         /* x: set up for LEN */
-#ifndef SLOW
-      if (m >= 258 && n >= 10)
-      {
-        UPDATE
-        r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
-        LOAD
-        if (r != Z_OK)
-        {
-          c->mode = r == Z_STREAM_END ? WASH : BADCODE;
-          break;
-        }
-      }
-#endif /* !SLOW */
-      c->sub.code.need = c->lbits;
-      c->sub.code.tree = c->ltree;
-      c->mode = LEN;
-    case LEN:           /* i: get length/literal/eob next */
-      j = c->sub.code.need;
-      NEEDBITS(j)
-      t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
-      DUMPBITS(t->bits)
-      e = (uInt)(t->exop);
-      if (e == 0)               /* literal */
-      {
-        c->sub.lit = t->base;
-        Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
-                 "inflate:         literal '%c'\n" :
-                 "inflate:         literal 0x%02x\n", t->base));
-        c->mode = LIT;
-        break;
-      }
-      if (e & 16)               /* length */
-      {
-        c->sub.copy.get = e & 15;
-        c->len = t->base;
-        c->mode = LENEXT;
-        break;
-      }
-      if ((e & 64) == 0)        /* next table */
-      {
-        c->sub.code.need = e;
-        c->sub.code.tree = t->next;
-        break;
-      }
-      if (e & 32)               /* end of block */
-      {
-        Tracevv((stderr, "inflate:         end of block\n"));
-        c->mode = WASH;
-        break;
-      }
-      c->mode = BADCODE;        /* invalid code */
-      z->msg = "invalid literal/length code";
-      r = Z_DATA_ERROR;
-      LEAVE
-    case LENEXT:        /* i: getting length extra (have base) */
-      j = c->sub.copy.get;
-      NEEDBITS(j)
-      c->len += (uInt)b & inflate_mask[j];
-      DUMPBITS(j)
-      c->sub.code.need = c->dbits;
-      c->sub.code.tree = c->dtree;
-      Tracevv((stderr, "inflate:         length %u\n", c->len));
-      c->mode = DIST;
-    case DIST:          /* i: get distance next */
-      j = c->sub.code.need;
-      NEEDBITS(j)
-      t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
-      DUMPBITS(t->bits)
-      e = (uInt)(t->exop);
-      if (e & 16)               /* distance */
-      {
-        c->sub.copy.get = e & 15;
-        c->sub.copy.dist = t->base;
-        c->mode = DISTEXT;
-        break;
-      }
-      if ((e & 64) == 0)        /* next table */
-      {
-        c->sub.code.need = e;
-        c->sub.code.tree = t->next;
-        break;
-      }
-      c->mode = BADCODE;        /* invalid code */
-      z->msg = "invalid distance code";
-      r = Z_DATA_ERROR;
-      LEAVE
-    case DISTEXT:       /* i: getting distance extra */
-      j = c->sub.copy.get;
-      NEEDBITS(j)
-      c->sub.copy.dist += (uInt)b & inflate_mask[j];
-      DUMPBITS(j)
-      Tracevv((stderr, "inflate:         distance %u\n", c->sub.copy.dist));
-      c->mode = COPY;
-    case COPY:          /* o: copying bytes in window, waiting for space */
-#ifndef __TURBOC__ /* Turbo C bug for following expression */
-      f = (uInt)(q - s->window) < c->sub.copy.dist ?
-          s->end - (c->sub.copy.dist - (q - s->window)) :
-          q - c->sub.copy.dist;
-#else
-      f = q - c->sub.copy.dist;
-      if ((uInt)(q - s->window) < c->sub.copy.dist)
-        f = s->end - (c->sub.copy.dist - (q - s->window));
-#endif
-      while (c->len)
-      {
-        NEEDOUT
-        OUTBYTE(*f++)
-        if (f == s->end)
-          f = s->window;
-        c->len--;
-      }
-      c->mode = START;
-      break;
-    case LIT:           /* o: got literal, waiting for output space */
-      NEEDOUT
-      OUTBYTE(c->sub.lit)
-      c->mode = START;
-      break;
-    case WASH:          /* o: got eob, possibly more output */
-      FLUSH
-      if (s->read != s->write)
-        LEAVE
-      c->mode = END;
-    case END:
-      r = Z_STREAM_END;
-      LEAVE
-    case BADCODE:       /* x: got error */
-      r = Z_DATA_ERROR;
-      LEAVE
-    default:
-      r = Z_STREAM_ERROR;
-      LEAVE
-  }
-}
-
-
-local void inflate_codes_free(
-        inflate_codes_statef *c,
-        z_stream *z
-)
-{
-  ZFREE(z, c, sizeof(struct inflate_codes_state));
-  Tracev((stderr, "inflate:       codes free\n"));
-}
-
-/*+++++*/
-/* inflate_util.c -- data and routines common to blocks and codes
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* copy as much as possible from the sliding window to the output area */
-local int inflate_flush(
-        inflate_blocks_statef *s,
-        z_stream *z,
-        int r
-)
-{
-  uInt n;
-  Bytef *p, *q;
-
-  /* local copies of source and destination pointers */
-  p = z->next_out;
-  q = s->read;
-
-  /* compute number of bytes to copy as far as end of window */
-  n = (uInt)((q <= s->write ? s->write : s->end) - q);
-  if (n > z->avail_out) n = z->avail_out;
-  if (n && r == Z_BUF_ERROR) r = Z_OK;
-
-  /* update counters */
-  z->avail_out -= n;
-  z->total_out += n;
-
-  /* update check information */
-  if (s->checkfn != Z_NULL)
-    s->check = (*s->checkfn)(s->check, q, n);
-
-  /* copy as far as end of window */
-  zmemcpy(p, q, n);
-  p += n;
-  q += n;
-
-  /* see if more to copy at beginning of window */
-  if (q == s->end)
-  {
-    /* wrap pointers */
-    q = s->window;
-    if (s->write == s->end)
-      s->write = s->window;
-
-    /* compute bytes to copy */
-    n = (uInt)(s->write - q);
-    if (n > z->avail_out) n = z->avail_out;
-    if (n && r == Z_BUF_ERROR) r = Z_OK;
-
-    /* update counters */
-    z->avail_out -= n;
-    z->total_out += n;
-
-    /* update check information */
-    if (s->checkfn != Z_NULL)
-      s->check = (*s->checkfn)(s->check, q, n);
-
-    /* copy */
-    zmemcpy(p, q, n);
-    p += n;
-    q += n;
-  }
-
-  /* update pointers */
-  z->next_out = p;
-  s->read = q;
-
-  /* done */
-  return r;
-}
-
-
-/*+++++*/
-/* inffast.c -- process literals and length/distance pairs fast
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define base more.Base
-#define next more.Next
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* macros for bit input with no checking and for returning unused bytes */
-#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<<k;k+=8;}}
-#define UNGRAB {n+=(c=k>>3);p-=c;k&=7;}
-
-/* Called with number of bytes left to write in window at least 258
-   (the maximum string length) and number of input bytes available
-   at least ten.  The ten bytes are six bytes for the longest length/
-   distance pair plus four bytes for overloading the bit buffer. */
-
-local int inflate_fast(
-        uInt bl,
-        uInt bd,
-        inflate_huft *tl,
-        inflate_huft *td,
-        inflate_blocks_statef *s,
-        z_stream *z
-)
-{
-  inflate_huft *t;      /* temporary pointer */
-  uInt e;               /* extra bits or operation */
-  uLong b;              /* bit buffer */
-  uInt k;               /* bits in bit buffer */
-  Bytef *p;             /* input data pointer */
-  uInt n;               /* bytes available there */
-  Bytef *q;             /* output window write pointer */
-  uInt m;               /* bytes to end of window or read pointer */
-  uInt ml;              /* mask for literal/length tree */
-  uInt md;              /* mask for distance tree */
-  uInt c;               /* bytes to copy */
-  uInt d;               /* distance back to copy from */
-  Bytef *r;             /* copy source pointer */
-
-  /* load input, output, bit values */
-  LOAD
-
-  /* initialize masks */
-  ml = inflate_mask[bl];
-  md = inflate_mask[bd];
-
-  /* do until not enough input or output space for fast loop */
-  do {                          /* assume called with m >= 258 && n >= 10 */
-    /* get literal/length code */
-    GRABBITS(20)                /* max bits for literal/length code */
-    if ((e = (t = tl + ((uInt)b & ml))->exop) == 0)
-    {
-      DUMPBITS(t->bits)
-      Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
-                "inflate:         * literal '%c'\n" :
-                "inflate:         * literal 0x%02x\n", t->base));
-      *q++ = (Byte)t->base;
-      m--;
-      continue;
-    }
-    do {
-      DUMPBITS(t->bits)
-      if (e & 16)
-      {
-        /* get extra bits for length */
-        e &= 15;
-        c = t->base + ((uInt)b & inflate_mask[e]);
-        DUMPBITS(e)
-        Tracevv((stderr, "inflate:         * length %u\n", c));
-
-        /* decode distance base of block to copy */
-        GRABBITS(15);           /* max bits for distance code */
-        e = (t = td + ((uInt)b & md))->exop;
-        do {
-          DUMPBITS(t->bits)
-          if (e & 16)
-          {
-            /* get extra bits to add to distance base */
-            e &= 15;
-            GRABBITS(e)         /* get extra bits (up to 13) */
-            d = t->base + ((uInt)b & inflate_mask[e]);
-            DUMPBITS(e)
-            Tracevv((stderr, "inflate:         * distance %u\n", d));
-
-            /* do the copy */
-            m -= c;
-            if ((uInt)(q - s->window) >= d)     /* offset before dest */
-            {                                   /*  just copy */
-              r = q - d;
-              *q++ = *r++;  c--;        /* minimum count is three, */
-              *q++ = *r++;  c--;        /*  so unroll loop a little */
-            }
-            else                        /* else offset after destination */
-            {
-              e = d - (q - s->window);  /* bytes from offset to end */
-              r = s->end - e;           /* pointer to offset */
-              if (c > e)                /* if source crosses, */
-              {
-                c -= e;                 /* copy to end of window */
-                do {
-                  *q++ = *r++;
-                } while (--e);
-                r = s->window;          /* copy rest from start of window */
-              }
-            }
-            do {                        /* copy all or what's left */
-              *q++ = *r++;
-            } while (--c);
-            break;
-          }
-          else if ((e & 64) == 0)
-            e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop;
-          else
-          {
-            z->msg = "invalid distance code";
-            UNGRAB
-            UPDATE
-            return Z_DATA_ERROR;
-          }
-        } while (1);
-        break;
-      }
-      if ((e & 64) == 0)
-      {
-        if ((e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop) == 0)
-        {
-          DUMPBITS(t->bits)
-          Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
-                    "inflate:         * literal '%c'\n" :
-                    "inflate:         * literal 0x%02x\n", t->base));
-          *q++ = (Byte)t->base;
-          m--;
-          break;
-        }
-      }
-      else if (e & 32)
-      {
-        Tracevv((stderr, "inflate:         * end of block\n"));
-        UNGRAB
-        UPDATE
-        return Z_STREAM_END;
-      }
-      else
-      {
-        z->msg = "invalid literal/length code";
-        UNGRAB
-        UPDATE
-        return Z_DATA_ERROR;
-      }
-    } while (1);
-  } while (m >= 258 && n >= 10);
-
-  /* not enough input or output--restore pointers and return */
-  UNGRAB
-  UPDATE
-  return Z_OK;
-}
-
-
-/*+++++*/
-/* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* From: zutil.c,v 1.8 1995/05/03 17:27:12 jloup Exp */
-
-char *zlib_version = ZLIB_VERSION;
-
-char *z_errmsg[] = {
-"stream end",          /* Z_STREAM_END    1 */
-"",                    /* Z_OK            0 */
-"file error",          /* Z_ERRNO        (-1) */
-"stream error",        /* Z_STREAM_ERROR (-2) */
-"data error",          /* Z_DATA_ERROR   (-3) */
-"insufficient memory", /* Z_MEM_ERROR    (-4) */
-"buffer error",        /* Z_BUF_ERROR    (-5) */
-""};
-
-
-/*+++++*/
-/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* From: adler32.c,v 1.6 1995/05/03 17:27:08 jloup Exp */
-
-#define BASE 65521L /* largest prime smaller than 65536 */
-#define NMAX 5552
-/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
-
-#define DO1(buf)  {s1 += *buf++; s2 += s1;}
-#define DO2(buf)  DO1(buf); DO1(buf);
-#define DO4(buf)  DO2(buf); DO2(buf);
-#define DO8(buf)  DO4(buf); DO4(buf);
-#define DO16(buf) DO8(buf); DO8(buf);
-
-/* ========================================================================= */
-uLong adler32(
-        uLong adler,
-        Bytef *buf,
-        uInt len
-)
-{
-    unsigned long s1 = adler & 0xffff;
-    unsigned long s2 = (adler >> 16) & 0xffff;
-    int k;
-
-    if (buf == Z_NULL) return 1L;
-
-    while (len > 0) {
-        k = len < NMAX ? len : NMAX;
-        len -= k;
-        while (k >= 16) {
-            DO16(buf);
-            k -= 16;
-        }
-        if (k != 0) do {
-            DO1(buf);
-        } while (--k);
-        s1 %= BASE;
-        s2 %= BASE;
-    }
-    return (s2 << 16) | s1;
-}
diff --git a/arch/ppc64/boot/zlib.h b/arch/ppc64/boot/zlib.h
deleted file mode 100644
index f0b996c6864f..000000000000
--- a/arch/ppc64/boot/zlib.h
+++ /dev/null
@@ -1,432 +0,0 @@
-/*              */
-
-/*
- * This file is derived from zlib.h and zconf.h from the zlib-0.95
- * distribution by Jean-loup Gailly and Mark Adler, with some additions
- * by Paul Mackerras to aid in implementing Deflate compression and
- * decompression for PPP packets.
- */
-
-/*
- *  ==FILEVERSION 960122==
- *
- * This marker is used by the Linux installation script to determine
- * whether an up-to-date version of this file is already installed.
- */
-
-/* zlib.h -- interface of the 'zlib' general purpose compression library
-  version 0.95, Aug 16th, 1995.
-
-  Copyright (C) 1995 Jean-loup Gailly and Mark Adler
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Jean-loup Gailly        Mark Adler
-  gzip@prep.ai.mit.edu    madler@alumni.caltech.edu
- */
-
-#ifndef _ZLIB_H
-#define _ZLIB_H
-
-/* #include "zconf.h" */        /* included directly here */
-
-/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h 
- */
-
-/* From: zconf.h,v 1.12 1995/05/03 17:27:12 jloup Exp */
-
-/*
-     The library does not install any signal handler. It is recommended to
-  add at least a handler for SIGSEGV when decompressing; the library checks
-  the consistency of the input data whenever possible but may go nuts
-  for some forms of corrupted input.
- */
-
-/*
- * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
- * than 64k bytes at a time (needed on systems with 16-bit int).
- * Compile with -DUNALIGNED_OK if it is OK to access shorts or ints
- * at addresses which are not a multiple of their size.
- * Under DOS, -DFAR=far or -DFAR=__far may be needed.
- */
-
-#ifndef STDC
-#  if defined(MSDOS) || defined(__STDC__) || defined(__cplusplus)
-#    define STDC
-#  endif
-#endif
-
-#ifdef  __MWERKS__ /* Metrowerks CodeWarrior declares fileno() in unix.h */
-#  include <unix.h>
-#endif
-
-/* Maximum value for memLevel in deflateInit2 */
-#ifndef MAX_MEM_LEVEL
-#  ifdef MAXSEG_64K
-#    define MAX_MEM_LEVEL 8
-#  else
-#    define MAX_MEM_LEVEL 9
-#  endif
-#endif
-
-#ifndef FAR
-#  define FAR
-#endif
-
-/* Maximum value for windowBits in deflateInit2 and inflateInit2 */
-#ifndef MAX_WBITS
-#  define MAX_WBITS   15 /* 32K LZ77 window */
-#endif
-
-/* The memory requirements for deflate are (in bytes):
-            1 << (windowBits+2)   +  1 << (memLevel+9)
- that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
- plus a few kilobytes for small objects. For example, if you want to reduce
- the default memory requirements from 256K to 128K, compile with
-     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
- Of course this will generally degrade compression (there's no free lunch).
-
-   The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
- for small objects.
-*/
-
-                        /* Type declarations */
-
-#ifndef OF /* function prototypes */
-#  ifdef STDC
-#    define OF(args)  args
-#  else
-#    define OF(args)  ()
-#  endif
-#endif
-
-typedef unsigned char  Byte;  /* 8 bits */
-typedef unsigned int   uInt;  /* 16 bits or more */
-typedef unsigned long  uLong; /* 32 bits or more */
-
-typedef Byte FAR Bytef;
-typedef char FAR charf;
-typedef int FAR intf;
-typedef uInt FAR uIntf;
-typedef uLong FAR uLongf;
-
-#ifdef STDC
-   typedef void FAR *voidpf;
-   typedef void     *voidp;
-#else
-   typedef Byte FAR *voidpf;
-   typedef Byte     *voidp;
-#endif
-
-/* end of original zconf.h */
-
-#define ZLIB_VERSION "0.95P"
-
-/* 
-     The 'zlib' compression library provides in-memory compression and
-  decompression functions, including integrity checks of the uncompressed
-  data.  This version of the library supports only one compression method
-  (deflation) but other algorithms may be added later and will have the same
-  stream interface.
-
-     For compression the application must provide the output buffer and
-  may optionally provide the input buffer for optimization. For decompression,
-  the application must provide the input buffer and may optionally provide
-  the output buffer for optimization.
-
-     Compression can be done in a single step if the buffers are large
-  enough (for example if an input file is mmap'ed), or can be done by
-  repeated calls of the compression function.  In the latter case, the
-  application must provide more input and/or consume the output
-  (providing more output space) before each call.
-*/
-
-typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
-typedef void   (*free_func)  OF((voidpf opaque, voidpf address, uInt nbytes));
-
-struct internal_state;
-
-typedef struct z_stream_s {
-    Bytef    *next_in;  /* next input byte */
-    uInt     avail_in;  /* number of bytes available at next_in */
-    uLong    total_in;  /* total nb of input bytes read so far */
-
-    Bytef    *next_out; /* next output byte should be put there */
-    uInt     avail_out; /* remaining free space at next_out */
-    uLong    total_out; /* total nb of bytes output so far */
-
-    char     *msg;      /* last error message, NULL if no error */
-    struct internal_state FAR *state; /* not visible by applications */
-
-    alloc_func zalloc;  /* used to allocate the internal state */
-    free_func  zfree;   /* used to free the internal state */
-    voidp      opaque;  /* private data object passed to zalloc and zfree */
-
-    Byte     data_type; /* best guess about the data type: ascii or binary */
-
-} z_stream;
-
-/*
-   The application must update next_in and avail_in when avail_in has
-   dropped to zero. It must update next_out and avail_out when avail_out
-   has dropped to zero. The application must initialize zalloc, zfree and
-   opaque before calling the init function. All other fields are set by the
-   compression library and must not be updated by the application.
-
-   The opaque value provided by the application will be passed as the first
-   parameter for calls of zalloc and zfree. This can be useful for custom
-   memory management. The compression library attaches no meaning to the
-   opaque value.
-
-   zalloc must return Z_NULL if there is not enough memory for the object.
-   On 16-bit systems, the functions zalloc and zfree must be able to allocate
-   exactly 65536 bytes, but will not be required to allocate more than this
-   if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
-   pointers returned by zalloc for objects of exactly 65536 bytes *must*
-   have their offset normalized to zero. The default allocation function
-   provided by this library ensures this (see zutil.c). To reduce memory
-   requirements and avoid any allocation of 64K objects, at the expense of
-   compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
-
-   The fields total_in and total_out can be used for statistics or
-   progress reports. After compression, total_in holds the total size of
-   the uncompressed data and may be saved for use in the decompressor
-   (particularly if the decompressor wants to decompress everything in
-   a single step).
-*/
-
-                        /* constants */
-
-#define Z_NO_FLUSH      0
-#define Z_PARTIAL_FLUSH 1
-#define Z_FULL_FLUSH    2
-#define Z_SYNC_FLUSH    3 /* experimental: partial_flush + byte align */
-#define Z_FINISH        4
-#define Z_PACKET_FLUSH  5
-/* See deflate() below for the usage of these constants */
-
-#define Z_OK            0
-#define Z_STREAM_END    1
-#define Z_ERRNO        (-1)
-#define Z_STREAM_ERROR (-2)
-#define Z_DATA_ERROR   (-3)
-#define Z_MEM_ERROR    (-4)
-#define Z_BUF_ERROR    (-5)
-/* error codes for the compression/decompression functions */
-
-#define Z_BEST_SPEED             1
-#define Z_BEST_COMPRESSION       9
-#define Z_DEFAULT_COMPRESSION  (-1)
-/* compression levels */
-
-#define Z_FILTERED            1
-#define Z_HUFFMAN_ONLY        2
-#define Z_DEFAULT_STRATEGY    0
-
-#define Z_BINARY   0
-#define Z_ASCII    1
-#define Z_UNKNOWN  2
-/* Used to set the data_type field */
-
-#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
-
-extern char *zlib_version;
-/* The application can compare zlib_version and ZLIB_VERSION for consistency.
-   If the first character differs, the library code actually used is
-   not compatible with the zlib.h header file used by the application.
- */
-
-                        /* basic functions */
-
-extern int inflateInit OF((z_stream *strm));
-/* 
-     Initializes the internal stream state for decompression. The fields
-   zalloc and zfree must be initialized before by the caller.  If zalloc and
-   zfree are set to Z_NULL, inflateInit updates them to use default allocation
-   functions.
-
-     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory.  msg is set to null if there is no error message.
-   inflateInit does not perform any decompression: this will be done by
-   inflate().
-*/
-
-
-extern int inflate OF((z_stream *strm, int flush));
-/*
-  Performs one or both of the following actions:
-
-  - Decompress more input starting at next_in and update next_in and avail_in
-    accordingly. If not all input can be processed (because there is not
-    enough room in the output buffer), next_in is updated and processing
-    will resume at this point for the next call of inflate().
-
-  - Provide more output starting at next_out and update next_out and avail_out
-    accordingly.  inflate() always provides as much output as possible
-    (until there is no more input data or no more space in the output buffer).
-
-  Before the call of inflate(), the application should ensure that at least
-  one of the actions is possible, by providing more input and/or consuming
-  more output, and updating the next_* and avail_* values accordingly.
-  The application can consume the uncompressed output when it wants, for
-  example when the output buffer is full (avail_out == 0), or after each
-  call of inflate().
-
-    If the parameter flush is set to Z_PARTIAL_FLUSH or Z_PACKET_FLUSH,
-  inflate flushes as much output as possible to the output buffer. The
-  flushing behavior of inflate is not specified for values of the flush
-  parameter other than Z_PARTIAL_FLUSH, Z_PACKET_FLUSH or Z_FINISH, but the
-  current implementation actually flushes as much output as possible
-  anyway.  For Z_PACKET_FLUSH, inflate checks that once all the input data
-  has been consumed, it is expecting to see the length field of a stored
-  block; if not, it returns Z_DATA_ERROR.
-
-    inflate() should normally be called until it returns Z_STREAM_END or an
-  error. However if all decompression is to be performed in a single step
-  (a single call of inflate), the parameter flush should be set to
-  Z_FINISH. In this case all pending input is processed and all pending
-  output is flushed; avail_out must be large enough to hold all the
-  uncompressed data. (The size of the uncompressed data may have been saved
-  by the compressor for this purpose.) The next operation on this stream must
-  be inflateEnd to deallocate the decompression state. The use of Z_FINISH
-  is never required, but can be used to inform inflate that a faster routine
-  may be used for the single inflate() call.
-
-    inflate() returns Z_OK if some progress has been made (more input
-  processed or more output produced), Z_STREAM_END if the end of the
-  compressed data has been reached and all uncompressed output has been
-  produced, Z_DATA_ERROR if the input data was corrupted, Z_STREAM_ERROR if
-  the stream structure was inconsistent (for example if next_in or next_out
-  was NULL), Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if no
-  progress is possible or if there was not enough room in the output buffer
-  when Z_FINISH is used. In the Z_DATA_ERROR case, the application may then
-  call inflateSync to look for a good compression block.  */
-
-
-extern int inflateEnd OF((z_stream *strm));
-/*
-     All dynamically allocated data structures for this stream are freed.
-   This function discards any unprocessed input and does not flush any
-   pending output.
-
-     inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
-   was inconsistent. In the error case, msg may be set but then points to a
-   static string (which must not be deallocated).
-*/
-
-                        /* advanced functions */
-
-extern int inflateInit2 OF((z_stream *strm,
-                            int  windowBits));
-/*   
-     This is another version of inflateInit with more compression options. The
-   fields next_out, zalloc and zfree must be initialized before by the caller.
-
-     The windowBits parameter is the base two logarithm of the maximum window
-   size (the size of the history buffer).  It should be in the range 8..15 for
-   this version of the library (the value 16 will be allowed soon). The
-   default value is 15 if inflateInit is used instead. If a compressed stream
-   with a larger window size is given as input, inflate() will return with
-   the error code Z_DATA_ERROR instead of trying to allocate a larger window.
-
-     If next_out is not null, the library will use this buffer for the history
-   buffer; the buffer must either be large enough to hold the entire output
-   data, or have at least 1<<windowBits bytes.  If next_out is null, the
-   library will allocate its own buffer (and leave next_out null). next_in
-   need not be provided here but must be provided by the application for the
-   next call of inflate().
-
-     If the history buffer is provided by the application, next_out must
-   never be changed by the application since the decompressor maintains
-   history information inside this buffer from call to call; the application
-   can only reset next_out to the beginning of the history buffer when
-   avail_out is zero and all output has been consumed.
-
-      inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was
-   not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as
-   windowBits < 8). msg is set to null if there is no error message.
-   inflateInit2 does not perform any decompression: this will be done by
-   inflate().
-*/
-
-extern int inflateSync OF((z_stream *strm));
-/* 
-    Skips invalid compressed data until the special marker (see deflate()
-  above) can be found, or until all available input is skipped. No output
-  is provided.
-
-    inflateSync returns Z_OK if the special marker has been found, Z_BUF_ERROR
-  if no more input was provided, Z_DATA_ERROR if no marker has been found,
-  or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
-  case, the application may save the current current value of total_in which
-  indicates where valid compressed data was found. In the error case, the
-  application may repeatedly call inflateSync, providing more input each time,
-  until success or end of the input data.
-*/
-
-extern int inflateReset OF((z_stream *strm));
-/*
-     This function is equivalent to inflateEnd followed by inflateInit,
-   but does not free and reallocate all the internal decompression state.
-   The stream will keep attributes that may have been set by inflateInit2.
-
-      inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
-   stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-extern int inflateIncomp OF((z_stream *strm));
-/*
-     This function adds the data at next_in (avail_in bytes) to the output
-   history without performing any output.  There must be no pending output,
-   and the decompressor must be expecting to see the start of a block.
-   Calling this function is equivalent to decompressing a stored block
-   containing the data at next_in (except that the data is not output).
-*/
-
-                        /* checksum functions */
-
-/*
-     This function is not related to compression but is exported
-   anyway because it might be useful in applications using the
-   compression library.
-*/
-
-extern uLong adler32 OF((uLong adler, Bytef *buf, uInt len));
-
-/*
-     Update a running Adler-32 checksum with the bytes buf[0..len-1] and
-   return the updated checksum. If buf is NULL, this function returns
-   the required initial value for the checksum.
-   An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
-   much faster. Usage example:
-
-     uLong adler = adler32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       adler = adler32(adler, buffer, length);
-     }
-     if (adler != original_adler) error();
-*/
-
-#ifndef _Z_UTIL_H
-    struct internal_state {int dummy;}; /* hack for buggy compilers */
-#endif
-
-#endif /* _ZLIB_H */
diff --git a/arch/ppc64/defconfig b/arch/ppc64/defconfig
index 37c157c93cef..e79fd60bc122 100644
--- a/arch/ppc64/defconfig
+++ b/arch/ppc64/defconfig
@@ -1318,7 +1318,7 @@ CONFIG_MSDOS_PARTITION=y
 #
 CONFIG_NLS=y
 CONFIG_NLS_DEFAULT="iso8859-1"
-CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_CODEPAGE_737=m
 CONFIG_NLS_CODEPAGE_775=m
 CONFIG_NLS_CODEPAGE_850=m
@@ -1342,7 +1342,7 @@ CONFIG_NLS_ISO8859_8=m
 CONFIG_NLS_CODEPAGE_1250=m
 CONFIG_NLS_CODEPAGE_1251=m
 CONFIG_NLS_ASCII=m
-CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_ISO8859_2=m
 CONFIG_NLS_ISO8859_3=m
 CONFIG_NLS_ISO8859_4=m
diff --git a/arch/ppc64/kernel/HvLpEvent.c b/arch/ppc64/kernel/HvLpEvent.c
deleted file mode 100644
index 90032b138902..000000000000
--- a/arch/ppc64/kernel/HvLpEvent.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright 2001 Mike Corrigan IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <asm/system.h>
-#include <asm/iSeries/HvLpEvent.h>
-#include <asm/iSeries/HvCallEvent.h>
-#include <asm/iSeries/ItLpNaca.h>
-
-/* Array of LpEvent handler functions */
-LpEventHandler lpEventHandler[HvLpEvent_Type_NumTypes];
-unsigned lpEventHandlerPaths[HvLpEvent_Type_NumTypes];
-
-/* Register a handler for an LpEvent type */
-
-int HvLpEvent_registerHandler( HvLpEvent_Type eventType, LpEventHandler handler )
-{
-        int rc = 1;
-        if ( eventType < HvLpEvent_Type_NumTypes ) {
-                lpEventHandler[eventType] = handler;
-                rc = 0;
-        }
-        return rc;
-        
-}
-
-int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType )
-{
-        int rc = 1;
-
-        might_sleep();
-
-        if ( eventType < HvLpEvent_Type_NumTypes ) {
-                if ( !lpEventHandlerPaths[eventType] ) {
-                        lpEventHandler[eventType] = NULL;
-                        rc = 0;
-
-                        /* We now sleep until all other CPUs have scheduled. This ensures that
-                         * the deletion is seen by all other CPUs, and that the deleted handler
-                         * isn't still running on another CPU when we return. */
-                        synchronize_rcu();
-                }
-        }
-        return rc;
-}
-EXPORT_SYMBOL(HvLpEvent_registerHandler);
-EXPORT_SYMBOL(HvLpEvent_unregisterHandler);
-
-/* (lpIndex is the partition index of the target partition.  
- * needed only for VirtualIo, VirtualLan and SessionMgr.  Zero
- * indicates to use our partition index - for the other types)
- */
-int HvLpEvent_openPath( HvLpEvent_Type eventType, HvLpIndex lpIndex )
-{
-        int rc = 1;
-        if ( eventType < HvLpEvent_Type_NumTypes &&
-             lpEventHandler[eventType] ) {
-                if ( lpIndex == 0 )
-                        lpIndex = itLpNaca.xLpIndex;
-                HvCallEvent_openLpEventPath( lpIndex, eventType );
-                ++lpEventHandlerPaths[eventType];
-                rc = 0;
-        }
-        return rc;
-}
-
-int HvLpEvent_closePath( HvLpEvent_Type eventType, HvLpIndex lpIndex )
-{
-        int rc = 1;
-        if ( eventType < HvLpEvent_Type_NumTypes &&
-             lpEventHandler[eventType] &&
-             lpEventHandlerPaths[eventType] ) {
-                if ( lpIndex == 0 )
-                        lpIndex = itLpNaca.xLpIndex;
-                HvCallEvent_closeLpEventPath( lpIndex, eventType );
-                --lpEventHandlerPaths[eventType];
-                rc = 0;
-        }
-        return rc;
-}
-
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index ae60eb1193c6..327c08ce4291 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -2,36 +2,34 @@
 # Makefile for the linux ppc64 kernel.
 #
 
+ifneq ($(CONFIG_PPC_MERGE),y)
+
 EXTRA_CFLAGS    += -mno-minimal-toc
 extra-y         := head.o vmlinux.lds
 
-obj-y               :=  setup.o entry.o traps.o irq.o idle.o dma.o \
-                        time.o process.o signal.o syscalls.o misc.o ptrace.o \
-                        align.o semaphore.o bitops.o pacaData.o \
-                        udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \
-                        ptrace32.o signal32.o rtc.o init_task.o \
-                        lmb.o cputable.o cpu_setup_power4.o idle_power4.o \
-                        iommu.o sysfs.o vdso.o pmc.o firmware.o
-obj-y += vdso32/ vdso64/
+obj-y               :=  misc.o prom.o
+
+endif
 
-obj-$(CONFIG_PPC_OF) += of_device.o
+obj-y               +=  irq.o idle.o dma.o \
+                        signal.o \
+                        align.o bitops.o pacaData.o \
+                        udbg.o ioctl32.o \
+                        rtc.o \
+                        cpu_setup_power4.o \
+                        iommu.o sysfs.o vdso.o firmware.o
+obj-y += vdso32/ vdso64/
 
-pci-obj-$(CONFIG_PPC_ISERIES)   += iSeries_pci.o iSeries_irq.o \
-                                iSeries_VpdInfo.o
 pci-obj-$(CONFIG_PPC_MULTIPLATFORM)     += pci_dn.o pci_direct_iommu.o
 
 obj-$(CONFIG_PCI)       += pci.o pci_iommu.o iomap.o $(pci-obj-y)
 
-obj-$(CONFIG_PPC_ISERIES) += HvCall.o HvLpConfig.o LparData.o \
-                             iSeries_setup.o ItLpQueue.o hvCall.o \
-                             mf.o HvLpEvent.o iSeries_proc.o iSeries_htab.o \
-                             iSeries_iommu.o
-
-obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o i8259.o prom_init.o prom.o
+obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o
+ifneq ($(CONFIG_PPC_MERGE),y)
+obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
+endif
 
-obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \
-                             pSeries_nvram.o rtasd.o ras.o pSeries_reconfig.o \
-                             pSeries_setup.o pSeries_iommu.o udbg_16550.o
+obj-$(CONFIG_PPC_PSERIES) += rtasd.o udbg_16550.o
 
 obj-$(CONFIG_PPC_BPA) += bpa_setup.o bpa_iommu.o bpa_nvram.o \
                          bpa_iic.o spider-pic.o
@@ -41,45 +39,36 @@ obj-$(CONFIG_EEH)		+= eeh.o
 obj-$(CONFIG_PROC_FS)           += proc_ppc64.o
 obj-$(CONFIG_RTAS_FLASH)        += rtas_flash.o
 obj-$(CONFIG_SMP)               += smp.o
-obj-$(CONFIG_MODULES)           += module.o ppc_ksyms.o
-obj-$(CONFIG_PPC_RTAS)          += rtas.o rtas_pci.o
+obj-$(CONFIG_MODULES)           += module.o
+ifneq ($(CONFIG_PPC_MERGE),y)
+obj-$(CONFIG_MODULES)           += ppc_ksyms.o
+endif
+obj-$(CONFIG_PPC_RTAS)          += rtas_pci.o
 obj-$(CONFIG_RTAS_PROC)         += rtas-proc.o
 obj-$(CONFIG_SCANLOG)           += scanlog.o
-obj-$(CONFIG_VIOPATH)           += viopath.o
 obj-$(CONFIG_LPARCFG)           += lparcfg.o
 obj-$(CONFIG_HVC_CONSOLE)       += hvconsole.o
+ifneq ($(CONFIG_PPC_MERGE),y)
 obj-$(CONFIG_BOOTX_TEXT)        += btext.o
+endif
 obj-$(CONFIG_HVCS)              += hvcserver.o
 
-vio-obj-$(CONFIG_PPC_PSERIES)   += pSeries_vio.o
-vio-obj-$(CONFIG_PPC_ISERIES)   += iSeries_vio.o
-obj-$(CONFIG_IBMVIO)            += vio.o $(vio-obj-y)
-obj-$(CONFIG_XICS)              += xics.o
-obj-$(CONFIG_MPIC)              += mpic.o
+obj-$(CONFIG_PPC_PMAC)          += udbg_scc.o
 
-obj-$(CONFIG_PPC_PMAC)          += pmac_setup.o pmac_feature.o pmac_pci.o \
-                                   pmac_time.o pmac_nvram.o pmac_low_i2c.o \
-                                   udbg_scc.o
-
-obj-$(CONFIG_PPC_MAPLE)         += maple_setup.o maple_pci.o maple_time.o \
-                                   udbg_16550.o
-
-obj-$(CONFIG_U3_DART)           += u3_iommu.o
+obj-$(CONFIG_PPC_MAPLE)         += udbg_16550.o
 
 ifdef CONFIG_SMP
-obj-$(CONFIG_PPC_PMAC)          += pmac_smp.o smp-tbsync.o
-obj-$(CONFIG_PPC_ISERIES)       += iSeries_smp.o
-obj-$(CONFIG_PPC_PSERIES)       += pSeries_smp.o
-obj-$(CONFIG_PPC_BPA)           += pSeries_smp.o
+obj-$(CONFIG_PPC_PMAC)          += smp-tbsync.o
 obj-$(CONFIG_PPC_MAPLE)         += smp-tbsync.o
 endif
 
-obj-$(CONFIG_ALTIVEC)           += vecemu.o vector.o
 obj-$(CONFIG_KPROBES)           += kprobes.o
 
 CFLAGS_ioctl32.o += -Ifs/
 
+ifneq ($(CONFIG_PPC_MERGE),y)
 ifeq ($(CONFIG_PPC_ISERIES),y)
-arch/ppc64/kernel/head.o: arch/ppc64/kernel/lparmap.s
-AFLAGS_head.o += -Iarch/ppc64/kernel
+arch/ppc64/kernel/head.o: arch/powerpc/kernel/lparmap.s
+AFLAGS_head.o += -Iarch/powerpc/kernel
+endif
 endif
diff --git a/arch/ppc64/kernel/align.c b/arch/ppc64/kernel/align.c
index 330e7ef81427..256d5b592aa1 100644
--- a/arch/ppc64/kernel/align.c
+++ b/arch/ppc64/kernel/align.c
@@ -313,7 +313,7 @@ fix_alignment(struct pt_regs *regs)
                                 /* Doing stfs, have to convert to single */
                                 preempt_disable();
                                 enable_kernel_fp();
-                                cvt_df(&current->thread.fpr[reg], (float *)&data.v[4], &current->thread.fpscr);
+                                cvt_df(&current->thread.fpr[reg], (float *)&data.v[4], &current->thread);
                                 disable_kernel_fp();
                                 preempt_enable();
                         }
@@ -349,7 +349,7 @@ fix_alignment(struct pt_regs *regs)
                                 /* Doing lfs, have to convert to double */
                                 preempt_disable();
                                 enable_kernel_fp();
-                                cvt_fd((float *)&data.v[4], &current->thread.fpr[reg], &current->thread.fpscr);
+                                cvt_fd((float *)&data.v[4], &current->thread.fpr[reg], &current->thread);
                                 disable_kernel_fp();
                                 preempt_enable();
                         }
diff --git a/arch/ppc64/kernel/asm-offsets.c b/arch/ppc64/kernel/asm-offsets.c
index 1ff4fa05a973..5e6046cb414e 100644
--- a/arch/ppc64/kernel/asm-offsets.c
+++ b/arch/ppc64/kernel/asm-offsets.c
@@ -46,8 +46,6 @@
 int main(void)
 {
         /* thread struct on stack */
-        DEFINE(THREAD_SHIFT, THREAD_SHIFT);
-        DEFINE(THREAD_SIZE, THREAD_SIZE);
         DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
         DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
         DEFINE(TI_SC_NOERR, offsetof(struct thread_info, syscall_noerror));
@@ -77,6 +75,7 @@ int main(void)
         DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
         DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
         DEFINE(PLATFORM, offsetof(struct systemcfg, platform));
+        DEFINE(PLATFORM_LPAR, PLATFORM_LPAR);
 
         /* paca */
         DEFINE(PACA_SIZE, sizeof(struct paca_struct));
diff --git a/arch/ppc64/kernel/bpa_iommu.c b/arch/ppc64/kernel/bpa_iommu.c
index 5f2460090e03..da1b4b7a3269 100644
--- a/arch/ppc64/kernel/bpa_iommu.c
+++ b/arch/ppc64/kernel/bpa_iommu.c
@@ -39,8 +39,8 @@
 #include <asm/pmac_feature.h>
 #include <asm/abs_addr.h>
 #include <asm/system.h>
+#include <asm/ppc-pci.h>
 
-#include "pci.h"
 #include "bpa_iommu.h"
 
 static inline unsigned long 
diff --git a/arch/ppc64/kernel/bpa_setup.c b/arch/ppc64/kernel/bpa_setup.c
index 57b3db66f458..c2dc8f282eb8 100644
--- a/arch/ppc64/kernel/bpa_setup.c
+++ b/arch/ppc64/kernel/bpa_setup.c
@@ -43,8 +43,9 @@
 #include <asm/time.h>
 #include <asm/nvram.h>
 #include <asm/cputable.h>
+#include <asm/ppc-pci.h>
+#include <asm/irq.h>
 
-#include "pci.h"
 #include "bpa_iic.h"
 #include "bpa_iommu.h"
 
@@ -54,7 +55,7 @@
 #define DBG(fmt...)
 #endif
 
-void bpa_get_cpuinfo(struct seq_file *m)
+void bpa_show_cpuinfo(struct seq_file *m)
 {
         struct device_node *root;
         const char *model = "";
@@ -128,7 +129,7 @@ struct machdep_calls __initdata bpa_md = {
         .probe                  = bpa_probe,
         .setup_arch             = bpa_setup_arch,
         .init_early             = bpa_init_early,
-        .get_cpuinfo            = bpa_get_cpuinfo,
+        .show_cpuinfo           = bpa_show_cpuinfo,
         .restart                = rtas_restart,
         .power_off              = rtas_power_off,
         .halt                   = rtas_halt,
diff --git a/arch/ppc64/kernel/btext.c b/arch/ppc64/kernel/btext.c
index b6fbfbe9032d..506a37885c5c 100644
--- a/arch/ppc64/kernel/btext.c
+++ b/arch/ppc64/kernel/btext.c
@@ -18,6 +18,7 @@
 #include <asm/io.h>
 #include <asm/lmb.h>
 #include <asm/processor.h>
+#include <asm/udbg.h>
 
 #undef NO_SCROLL
 
@@ -131,6 +132,47 @@ int btext_initialize(struct device_node *np)
         return 0;
 }
 
+static void btext_putc(unsigned char c)
+{
+        btext_drawchar(c);
+}
+
+void __init init_boot_display(void)
+{
+        char *name;
+        struct device_node *np = NULL; 
+        int rc = -ENODEV;
+
+        printk("trying to initialize btext ...\n");
+
+        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+        if (name != NULL) {
+                np = of_find_node_by_path(name);
+                if (np != NULL) {
+                        if (strcmp(np->type, "display") != 0) {
+                                printk("boot stdout isn't a display !\n");
+                                of_node_put(np);
+                                np = NULL;
+                        }
+                }
+        }
+        if (np)
+                rc = btext_initialize(np);
+        if (rc) {
+                for (np = NULL; (np = of_find_node_by_type(np, "display"));) {
+                        if (get_property(np, "linux,opened", NULL)) {
+                                printk("trying %s ...\n", np->full_name);
+                                rc = btext_initialize(np);
+                                printk("result: %d\n", rc);
+                        }
+                        if (rc == 0)
+                                break;
+                }
+        }
+        if (rc == 0 && udbg_putc == NULL)
+                udbg_putc = btext_putc;
+}
+
 
 /* Calc the base address of a given point (x,y) */
 static unsigned char * calc_base(int x, int y)
diff --git a/arch/ppc64/kernel/cputable.c b/arch/ppc64/kernel/cputable.c
deleted file mode 100644
index 8831a28c3c4e..000000000000
--- a/arch/ppc64/kernel/cputable.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- *  arch/ppc64/kernel/cputable.c
- *
- *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- *  Modifications for ppc64:
- *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/string.h>
-#include <linux/sched.h>
-#include <linux/threads.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <asm/oprofile_impl.h>
-#include <asm/cputable.h>
-
-struct cpu_spec* cur_cpu_spec = NULL;
-EXPORT_SYMBOL(cur_cpu_spec);
-
-/* NOTE:
- * Unlike ppc32, ppc64 will only call this once for the boot CPU, it's
- * the responsibility of the appropriate CPU save/restore functions to
- * eventually copy these settings over. Those save/restore aren't yet
- * part of the cputable though. That has to be fixed for both ppc32
- * and ppc64
- */
-extern void __setup_cpu_power3(unsigned long offset, struct cpu_spec* spec);
-extern void __setup_cpu_power4(unsigned long offset, struct cpu_spec* spec);
-extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
-extern void __setup_cpu_be(unsigned long offset, struct cpu_spec* spec);
-
-
-/* We only set the altivec features if the kernel was compiled with altivec
- * support
- */
-#ifdef CONFIG_ALTIVEC
-#define CPU_FTR_ALTIVEC_COMP    CPU_FTR_ALTIVEC
-#define PPC_FEATURE_HAS_ALTIVEC_COMP PPC_FEATURE_HAS_ALTIVEC
-#else
-#define CPU_FTR_ALTIVEC_COMP    0
-#define PPC_FEATURE_HAS_ALTIVEC_COMP    0
-#endif
-
-struct cpu_spec cpu_specs[] = {
-        {       /* Power3 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00400000,
-                .cpu_name               = "POWER3 (630)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR,
-                .cpu_user_features = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/power3",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* Power3+ */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00410000,
-                .cpu_name               = "POWER3 (630+)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/power3",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* Northstar */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00330000,
-                .cpu_name               = "RS64-II (northstar)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/rs64",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* Pulsar */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00340000,
-                .cpu_name               = "RS64-III (pulsar)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/rs64",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* I-star */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00360000,
-                .cpu_name               = "RS64-III (icestar)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/rs64",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* S-star */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00370000,
-                .cpu_name               = "RS64-IV (sstar)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power3,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/rs64",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* Power4 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00350000,
-                .cpu_name               = "POWER4 (gp)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power4,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/power4",
-                .oprofile_model         = &op_model_rs64,
-#endif
-        },
-        {       /* Power4+ */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00380000,
-                .cpu_name               = "POWER4+ (gq)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_power4,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/power4",
-                .oprofile_model         = &op_model_power4,
-#endif
-        },
-        {       /* PPC970 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00390000,
-                .cpu_name               = "PPC970",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
-                .cpu_user_features      = COMMON_USER_PPC64 |
-                        PPC_FEATURE_HAS_ALTIVEC_COMP,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_ppc970,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/970",
-                .oprofile_model         = &op_model_power4,
-#endif
-        },
-        {       /* PPC970FX */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x003c0000,
-                .cpu_name               = "PPC970FX",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
-                .cpu_user_features      = COMMON_USER_PPC64 |
-                        PPC_FEATURE_HAS_ALTIVEC_COMP,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 8,
-                .cpu_setup              = __setup_cpu_ppc970,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/970",
-                .oprofile_model         = &op_model_power4,
-#endif
-        },
-        {       /* PPC970MP */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00440000,
-                .cpu_name               = "PPC970MP",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
-                .cpu_user_features      = COMMON_USER_PPC64 |
-                        PPC_FEATURE_HAS_ALTIVEC_COMP,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .cpu_setup              = __setup_cpu_ppc970,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/970",
-                .oprofile_model         = &op_model_power4,
-#endif
-        },
-        {       /* Power5 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x003a0000,
-                .cpu_name               = "POWER5 (gr)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA | CPU_FTR_SMT |
-                        CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
-                        CPU_FTR_MMCRA_SIHV,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 6,
-                .cpu_setup              = __setup_cpu_power4,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/power5",
-                .oprofile_model         = &op_model_power4,
-#endif
-        },
-        {       /* Power5 */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x003b0000,
-                .cpu_name               = "POWER5 (gs)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA | CPU_FTR_SMT |
-                        CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
-                        CPU_FTR_MMCRA_SIHV,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 6,
-                .cpu_setup              = __setup_cpu_power4,
-#ifdef CONFIG_OPROFILE
-                .oprofile_cpu_type      = "ppc64/power5",
-                .oprofile_model         = &op_model_power4,
-#endif
-        },
-        {       /* BE DD1.x */
-                .pvr_mask               = 0xffff0000,
-                .pvr_value              = 0x00700000,
-                .cpu_name               = "Broadband Engine",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_SMT,
-                .cpu_user_features      = COMMON_USER_PPC64 |
-                        PPC_FEATURE_HAS_ALTIVEC_COMP,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .cpu_setup              = __setup_cpu_be,
-        },
-        {       /* default match */
-                .pvr_mask               = 0x00000000,
-                .pvr_value              = 0x00000000,
-                .cpu_name               = "POWER4 (compatible)",
-                .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2,
-                .cpu_user_features      = COMMON_USER_PPC64,
-                .icache_bsize           = 128,
-                .dcache_bsize           = 128,
-                .num_pmcs               = 6,
-                .cpu_setup              = __setup_cpu_power4,
-        }
-};
diff --git a/arch/ppc64/kernel/eeh.c b/arch/ppc64/kernel/eeh.c
index ba93fd731222..035d1b14a207 100644
--- a/arch/ppc64/kernel/eeh.c
+++ b/arch/ppc64/kernel/eeh.c
@@ -33,7 +33,7 @@
 #include <asm/rtas.h>
 #include <asm/atomic.h>
 #include <asm/systemcfg.h>
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 #undef DEBUG
 
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 72c61041151a..929f9f42cf7a 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -36,6 +36,7 @@
 #include <asm/setup.h>
 #include <asm/hvcall.h>
 #include <asm/iSeries/LparMap.h>
+#include <asm/thread_info.h>
 
 #ifdef CONFIG_PPC_ISERIES
 #define DO_SOFT_DISABLE
@@ -80,7 +81,7 @@ _stext:
 _GLOBAL(__start)
         /* NOP this out unconditionally */
 BEGIN_FTR_SECTION
-        b .__start_initialization_multiplatform
+        b       .__start_initialization_multiplatform
 END_FTR_SECTION(0, 1)
 #endif /* CONFIG_PPC_MULTIPLATFORM */
 
@@ -201,22 +202,22 @@ exception_marker:
 #define EX_CCR          60
 
 #define EXCEPTION_PROLOG_PSERIES(area, label)                           \
-        mfspr   r13,SPRG3;              /* get paca address into r13 */ \
+        mfspr   r13,SPRN_SPRG3;         /* get paca address into r13 */ \
         std     r9,area+EX_R9(r13);     /* save r9 - r12 */             \
         std     r10,area+EX_R10(r13);                                   \
         std     r11,area+EX_R11(r13);                                   \
         std     r12,area+EX_R12(r13);                                   \
-        mfspr   r9,SPRG1;                                               \
+        mfspr   r9,SPRN_SPRG1;                                          \
         std     r9,area+EX_R13(r13);                                    \
         mfcr    r9;                                                     \
         clrrdi  r12,r13,32;             /* get high part of &label */   \
         mfmsr   r10;                                                    \
-        mfspr   r11,SRR0;               /* save SRR0 */                 \
+        mfspr   r11,SPRN_SRR0;          /* save SRR0 */                 \
         ori     r12,r12,(label)@l;      /* virt addr of handler */      \
         ori     r10,r10,MSR_IR|MSR_DR|MSR_RI;                           \
-        mtspr   SRR0,r12;                                               \
-        mfspr   r12,SRR1;               /* and SRR1 */                  \
-        mtspr   SRR1,r10;                                               \
+        mtspr   SPRN_SRR0,r12;                                          \
+        mfspr   r12,SPRN_SRR1;          /* and SRR1 */                  \
+        mtspr   SPRN_SRR1,r10;                                          \
         rfid;                                                           \
         b       .       /* prevent speculative execution */
 
@@ -225,12 +226,12 @@ exception_marker:
  * This code runs with relocation on.
  */
 #define EXCEPTION_PROLOG_ISERIES_1(area)                                \
-        mfspr   r13,SPRG3;              /* get paca address into r13 */ \
+        mfspr   r13,SPRN_SPRG3;         /* get paca address into r13 */ \
         std     r9,area+EX_R9(r13);     /* save r9 - r12 */             \
         std     r10,area+EX_R10(r13);                                   \
         std     r11,area+EX_R11(r13);                                   \
         std     r12,area+EX_R12(r13);                                   \
-        mfspr   r9,SPRG1;                                               \
+        mfspr   r9,SPRN_SPRG1;                                          \
         std     r9,area+EX_R13(r13);                                    \
         mfcr    r9
 
@@ -283,7 +284,7 @@ exception_marker:
         std     r9,_LINK(r1);                                              \
         mfctr   r10;                    /* save CTR in stackframe       */ \
         std     r10,_CTR(r1);                                              \
-        mfspr   r11,XER;                /* save XER in stackframe       */ \
+        mfspr   r11,SPRN_XER;           /* save XER in stackframe       */ \
         std     r11,_XER(r1);                                              \
         li      r9,(n)+1;                                                  \
         std     r9,_TRAP(r1);           /* set trap number              */ \
@@ -300,7 +301,7 @@ exception_marker:
         .globl label##_pSeries;                         \
 label##_pSeries:                                        \
         HMT_MEDIUM;                                     \
-        mtspr   SPRG1,r13;              /* save r13 */  \
+        mtspr   SPRN_SPRG1,r13;         /* save r13 */  \
         RUNLATCH_ON(r13);                               \
         EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
 
@@ -308,7 +309,7 @@ label##_pSeries:					\
         .globl label##_iSeries;                         \
 label##_iSeries:                                        \
         HMT_MEDIUM;                                     \
-        mtspr   SPRG1,r13;              /* save r13 */  \
+        mtspr   SPRN_SPRG1,r13;         /* save r13 */  \
         RUNLATCH_ON(r13);                               \
         EXCEPTION_PROLOG_ISERIES_1(area);               \
         EXCEPTION_PROLOG_ISERIES_2;                     \
@@ -318,7 +319,7 @@ label##_iSeries:					\
         .globl label##_iSeries;                                         \
 label##_iSeries:                                                        \
         HMT_MEDIUM;                                                     \
-        mtspr   SPRG1,r13;              /* save r13 */                  \
+        mtspr   SPRN_SPRG1,r13;         /* save r13 */                  \
         RUNLATCH_ON(r13);                                               \
         EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN);                         \
         lbz     r10,PACAPROCENABLED(r13);                               \
@@ -388,7 +389,7 @@ __start_interrupts:
         . = 0x200
 _machine_check_pSeries:
         HMT_MEDIUM
-        mtspr   SPRG1,r13               /* save r13 */
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
         RUNLATCH_ON(r13)
         EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
 
@@ -396,18 +397,18 @@ _machine_check_pSeries:
         .globl data_access_pSeries
 data_access_pSeries:
         HMT_MEDIUM
-        mtspr   SPRG1,r13
+        mtspr   SPRN_SPRG1,r13
 BEGIN_FTR_SECTION
-        mtspr   SPRG2,r12
-        mfspr   r13,DAR
-        mfspr   r12,DSISR
+        mtspr   SPRN_SPRG2,r12
+        mfspr   r13,SPRN_DAR
+        mfspr   r12,SPRN_DSISR
         srdi    r13,r13,60
         rlwimi  r13,r12,16,0x20
         mfcr    r12
         cmpwi   r13,0x2c
         beq     .do_stab_bolted_pSeries
         mtcrf   0x80,r12
-        mfspr   r12,SPRG2
+        mfspr   r12,SPRN_SPRG2
 END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
         EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common)
 
@@ -415,19 +416,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
         .globl data_access_slb_pSeries
 data_access_slb_pSeries:
         HMT_MEDIUM
-        mtspr   SPRG1,r13
+        mtspr   SPRN_SPRG1,r13
         RUNLATCH_ON(r13)
-        mfspr   r13,SPRG3               /* get paca address into r13 */
+        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
         std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
         std     r10,PACA_EXSLB+EX_R10(r13)
         std     r11,PACA_EXSLB+EX_R11(r13)
         std     r12,PACA_EXSLB+EX_R12(r13)
         std     r3,PACA_EXSLB+EX_R3(r13)
-        mfspr   r9,SPRG1
+        mfspr   r9,SPRN_SPRG1
         std     r9,PACA_EXSLB+EX_R13(r13)
         mfcr    r9
-        mfspr   r12,SRR1                /* and SRR1 */
-        mfspr   r3,DAR
+        mfspr   r12,SPRN_SRR1           /* and SRR1 */
+        mfspr   r3,SPRN_DAR
         b       .do_slb_miss            /* Rel. branch works in real mode */
 
         STD_EXCEPTION_PSERIES(0x400, instruction_access)
@@ -436,19 +437,19 @@ data_access_slb_pSeries:
         .globl instruction_access_slb_pSeries
 instruction_access_slb_pSeries:
         HMT_MEDIUM
-        mtspr   SPRG1,r13
+        mtspr   SPRN_SPRG1,r13
         RUNLATCH_ON(r13)
-        mfspr   r13,SPRG3               /* get paca address into r13 */
+        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
         std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
         std     r10,PACA_EXSLB+EX_R10(r13)
         std     r11,PACA_EXSLB+EX_R11(r13)
         std     r12,PACA_EXSLB+EX_R12(r13)
         std     r3,PACA_EXSLB+EX_R3(r13)
-        mfspr   r9,SPRG1
+        mfspr   r9,SPRN_SPRG1
         std     r9,PACA_EXSLB+EX_R13(r13)
         mfcr    r9
-        mfspr   r12,SRR1                /* and SRR1 */
-        mfspr   r3,SRR0                 /* SRR0 is faulting address */
+        mfspr   r12,SPRN_SRR1           /* and SRR1 */
+        mfspr   r3,SPRN_SRR0                    /* SRR0 is faulting address */
         b       .do_slb_miss            /* Rel. branch works in real mode */
 
         STD_EXCEPTION_PSERIES(0x500, hardware_interrupt)
@@ -466,15 +467,15 @@ system_call_pSeries:
         RUNLATCH_ON(r9)
         mr      r9,r13
         mfmsr   r10
-        mfspr   r13,SPRG3
-        mfspr   r11,SRR0
+        mfspr   r13,SPRN_SPRG3
+        mfspr   r11,SPRN_SRR0
         clrrdi  r12,r13,32
         oris    r12,r12,system_call_common@h
         ori     r12,r12,system_call_common@l
-        mtspr   SRR0,r12
+        mtspr   SPRN_SRR0,r12
         ori     r10,r10,MSR_IR|MSR_DR|MSR_RI
-        mfspr   r12,SRR1
-        mtspr   SRR1,r10
+        mfspr   r12,SPRN_SRR1
+        mtspr   SPRN_SRR1,r10
         rfid
         b       .       /* prevent speculative execution */
 
@@ -504,25 +505,25 @@ system_call_pSeries:
         .align  7
 _GLOBAL(do_stab_bolted_pSeries)
         mtcrf   0x80,r12
-        mfspr   r12,SPRG2
+        mfspr   r12,SPRN_SPRG2
         EXCEPTION_PROLOG_PSERIES(PACA_EXSLB, .do_stab_bolted)
 
 /*
  * Vectors for the FWNMI option.  Share common code.
  */
-      .globl system_reset_fwnmi
+        .globl system_reset_fwnmi
 system_reset_fwnmi:
-      HMT_MEDIUM
-      mtspr   SPRG1,r13               /* save r13 */
-      RUNLATCH_ON(r13)
-      EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        RUNLATCH_ON(r13)
+        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
 
-      .globl machine_check_fwnmi
+        .globl machine_check_fwnmi
 machine_check_fwnmi:
-      HMT_MEDIUM
-      mtspr   SPRG1,r13               /* save r13 */
-      RUNLATCH_ON(r13)
-      EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
+        HMT_MEDIUM
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        RUNLATCH_ON(r13)
+        EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
 
 #ifdef CONFIG_PPC_ISERIES
 /***  ISeries-LPAR interrupt handlers ***/
@@ -531,18 +532,18 @@ machine_check_fwnmi:
 
         .globl data_access_iSeries
 data_access_iSeries:
-        mtspr   SPRG1,r13
+        mtspr   SPRN_SPRG1,r13
 BEGIN_FTR_SECTION
-        mtspr   SPRG2,r12
-        mfspr   r13,DAR
-        mfspr   r12,DSISR
+        mtspr   SPRN_SPRG2,r12
+        mfspr   r13,SPRN_DAR
+        mfspr   r12,SPRN_DSISR
         srdi    r13,r13,60
         rlwimi  r13,r12,16,0x20
         mfcr    r12
         cmpwi   r13,0x2c
         beq     .do_stab_bolted_iSeries
         mtcrf   0x80,r12
-        mfspr   r12,SPRG2
+        mfspr   r12,SPRN_SPRG2
 END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
         EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
         EXCEPTION_PROLOG_ISERIES_2
@@ -550,25 +551,25 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
 
 .do_stab_bolted_iSeries:
         mtcrf   0x80,r12
-        mfspr   r12,SPRG2
+        mfspr   r12,SPRN_SPRG2
         EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
         EXCEPTION_PROLOG_ISERIES_2
         b       .do_stab_bolted
 
         .globl  data_access_slb_iSeries
 data_access_slb_iSeries:
-        mtspr   SPRG1,r13               /* save r13 */
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
         EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
         std     r3,PACA_EXSLB+EX_R3(r13)
         ld      r12,PACALPPACA+LPPACASRR1(r13)
-        mfspr   r3,DAR
+        mfspr   r3,SPRN_DAR
         b       .do_slb_miss
 
         STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
 
         .globl  instruction_access_slb_iSeries
 instruction_access_slb_iSeries:
-        mtspr   SPRG1,r13               /* save r13 */
+        mtspr   SPRN_SPRG1,r13          /* save r13 */
         EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
         std     r3,PACA_EXSLB+EX_R3(r13)
         ld      r12,PACALPPACA+LPPACASRR1(r13)
@@ -586,7 +587,7 @@ instruction_access_slb_iSeries:
         .globl  system_call_iSeries
 system_call_iSeries:
         mr      r9,r13
-        mfspr   r13,SPRG3
+        mfspr   r13,SPRN_SPRG3
         EXCEPTION_PROLOG_ISERIES_2
         b       system_call_common
 
@@ -596,7 +597,7 @@ system_call_iSeries:
 
         .globl system_reset_iSeries
 system_reset_iSeries:
-        mfspr   r13,SPRG3               /* Get paca address */
+        mfspr   r13,SPRN_SPRG3          /* Get paca address */
         mfmsr   r24
         ori     r24,r24,MSR_RI
         mtmsrd  r24                     /* RI on */
@@ -639,7 +640,7 @@ iSeries_secondary_smp_loop:
 #endif /* CONFIG_SMP */
         li      r0,-1                   /* r0=-1 indicates a Hypervisor call */
         sc                              /* Invoke the hypervisor via a system call */
-        mfspr   r13,SPRG3               /* Put r13 back ???? */
+        mfspr   r13,SPRN_SPRG3          /* Put r13 back ???? */
         b       1b                      /* If SMP not configured, secondaries
                                          * loop forever */
 
@@ -656,8 +657,8 @@ hardware_interrupt_iSeries_masked:
         mtcrf   0x80,r9         /* Restore regs */
         ld      r11,PACALPPACA+LPPACASRR0(r13)
         ld      r12,PACALPPACA+LPPACASRR1(r13)
-        mtspr   SRR0,r11
-        mtspr   SRR1,r12
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
         ld      r9,PACA_EXGEN+EX_R9(r13)
         ld      r10,PACA_EXGEN+EX_R10(r13)
         ld      r11,PACA_EXGEN+EX_R11(r13)
@@ -713,8 +714,8 @@ bad_stack:
         std     r10,GPR1(r1)
         std     r11,_NIP(r1)
         std     r12,_MSR(r1)
-        mfspr   r11,DAR
-        mfspr   r12,DSISR
+        mfspr   r11,SPRN_DAR
+        mfspr   r12,SPRN_DSISR
         std     r11,_DAR(r1)
         std     r12,_DSISR(r1)
         mflr    r10
@@ -746,6 +747,7 @@ bad_stack:
  * any task or sent any task a signal, you should use
  * ret_from_except or ret_from_except_lite instead of this.
  */
+        .globl  fast_exception_return
 fast_exception_return:
         ld      r12,_MSR(r1)
         ld      r11,_NIP(r1)
@@ -766,8 +768,8 @@ fast_exception_return:
         clrrdi  r10,r10,2               /* clear RI (LE is 0 already) */
         mtmsrd  r10,1
 
-        mtspr   SRR1,r12
-        mtspr   SRR0,r11
+        mtspr   SPRN_SRR1,r12
+        mtspr   SPRN_SRR0,r11
         REST_4GPRS(10, r1)
         ld      r1,GPR1(r1)
         rfid
@@ -788,9 +790,9 @@ unrecov_fer:
         .globl data_access_common
 data_access_common:
         RUNLATCH_ON(r10)                /* It wont fit in the 0x300 handler */
-        mfspr   r10,DAR
+        mfspr   r10,SPRN_DAR
         std     r10,PACA_EXGEN+EX_DAR(r13)
-        mfspr   r10,DSISR
+        mfspr   r10,SPRN_DSISR
         stw     r10,PACA_EXGEN+EX_DSISR(r13)
         EXCEPTION_PROLOG_COMMON(0x300, PACA_EXGEN)
         ld      r3,PACA_EXGEN+EX_DAR(r13)
@@ -821,9 +823,9 @@ hardware_interrupt_entry:
         .align  7
         .globl alignment_common
 alignment_common:
-        mfspr   r10,DAR
+        mfspr   r10,SPRN_DAR
         std     r10,PACA_EXGEN+EX_DAR(r13)
-        mfspr   r10,DSISR
+        mfspr   r10,SPRN_DSISR
         stw     r10,PACA_EXGEN+EX_DSISR(r13)
         EXCEPTION_PROLOG_COMMON(0x600, PACA_EXGEN)
         ld      r3,PACA_EXGEN+EX_DAR(r13)
@@ -857,62 +859,6 @@ fp_unavailable_common:
         bl      .kernel_fp_unavailable_exception
         BUG_OPCODE
 
-/*
- * load_up_fpu(unused, unused, tsk)
- * Disable FP for the task which had the FPU previously,
- * and save its floating-point registers in its thread_struct.
- * Enables the FPU for use in the kernel on return.
- * On SMP we know the fpu is free, since we give it up every
- * switch (ie, no lazy save of the FP registers).
- * On entry: r13 == 'current' && last_task_used_math != 'current'
- */
-_STATIC(load_up_fpu)
-        mfmsr   r5                      /* grab the current MSR */
-        ori     r5,r5,MSR_FP
-        mtmsrd  r5                      /* enable use of fpu now */
-        isync
-/*
- * For SMP, we don't do lazy FPU switching because it just gets too
- * horrendously complex, especially when a task switches from one CPU
- * to another.  Instead we call giveup_fpu in switch_to.
- *
- */
-#ifndef CONFIG_SMP
-        ld      r3,last_task_used_math@got(r2)
-        ld      r4,0(r3)
-        cmpdi   0,r4,0
-        beq     1f
-        /* Save FP state to last_task_used_math's THREAD struct */
-        addi    r4,r4,THREAD
-        SAVE_32FPRS(0, r4)
-        mffs    fr0
-        stfd    fr0,THREAD_FPSCR(r4)
-        /* Disable FP for last_task_used_math */
-        ld      r5,PT_REGS(r4)
-        ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-        li      r6,MSR_FP|MSR_FE0|MSR_FE1
-        andc    r4,r4,r6
-        std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#endif /* CONFIG_SMP */
-        /* enable use of FP after return */
-        ld      r4,PACACURRENT(r13)
-        addi    r5,r4,THREAD            /* Get THREAD */
-        ld      r4,THREAD_FPEXC_MODE(r5)
-        ori     r12,r12,MSR_FP
-        or      r12,r12,r4
-        std     r12,_MSR(r1)
-        lfd     fr0,THREAD_FPSCR(r5)
-        mtfsf   0xff,fr0
-        REST_32FPRS(0, r5)
-#ifndef CONFIG_SMP
-        /* Update last_task_used_math to 'current' */
-        subi    r4,r5,THREAD            /* Back to 'current' */
-        std     r4,0(r3)
-#endif /* CONFIG_SMP */
-        /* restore registers and return */
-        b       fast_exception_return
-
         .align  7
         .globl altivec_unavailable_common
 altivec_unavailable_common:
@@ -1120,7 +1066,7 @@ _GLOBAL(do_stab_bolted)
 
         /* Hash to the primary group */
         ld      r10,PACASTABVIRT(r13)
-        mfspr   r11,DAR
+        mfspr   r11,SPRN_DAR
         srdi    r11,r11,28
         rldimi  r10,r11,7,52    /* r10 = first ste of the group */
 
@@ -1162,7 +1108,7 @@ _GLOBAL(do_stab_bolted)
 2:      std     r9,8(r10)       /* Store the vsid part of the ste       */
         eieio
 
-        mfspr   r11,DAR         /* Get the new esid                     */
+        mfspr   r11,SPRN_DAR            /* Get the new esid                     */
         clrrdi  r11,r11,28      /* Permits a full 32b of ESID           */
         ori     r11,r11,0x90    /* Turn on valid and kp                 */
         std     r11,0(r10)      /* Put new entry back into the stab     */
@@ -1182,8 +1128,8 @@ _GLOBAL(do_stab_bolted)
         clrrdi  r10,r10,2
         mtmsrd  r10,1
 
-        mtspr   SRR0,r11
-        mtspr   SRR1,r12
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
         ld      r9,PACA_EXSLB+EX_R9(r13)
         ld      r10,PACA_EXSLB+EX_R10(r13)
         ld      r11,PACA_EXSLB+EX_R11(r13)
@@ -1229,8 +1175,8 @@ _GLOBAL(do_slb_miss)
 .machine        pop
 
 #ifdef CONFIG_PPC_ISERIES
-        mtspr   SRR0,r11
-        mtspr   SRR1,r12
+        mtspr   SPRN_SRR0,r11
+        mtspr   SPRN_SRR1,r12
 #endif /* CONFIG_PPC_ISERIES */
         ld      r9,PACA_EXSLB+EX_R9(r13)
         ld      r10,PACA_EXSLB+EX_R10(r13)
@@ -1253,7 +1199,7 @@ unrecov_slb:
  *
  * On iSeries, the hypervisor must fill in at least one entry before
  * we get control (with relocate on).  The address is give to the hv
- * as a page number (see xLparMap in LparData.c), so this must be at a
+ * as a page number (see xLparMap in lpardata.c), so this must be at a
  * fixed address (the linker can't compute (u64)&initial_stab >>
  * PAGE_SHIFT).
  */
@@ -1316,7 +1262,7 @@ _GLOBAL(pSeries_secondary_smp_init)
         mr      r3,r24                  /* not found, copy phys to r3    */
         b       .kexec_wait             /* next kernel might do better   */
 
-2:      mtspr   SPRG3,r13               /* Save vaddr of paca in SPRG3   */
+2:      mtspr   SPRN_SPRG3,r13          /* Save vaddr of paca in SPRG3   */
         /* From now on, r24 is expected to be logical cpuid */
         mr      r24,r5
 3:      HMT_LOW
@@ -1364,6 +1310,7 @@ _STATIC(__start_initialization_iSeries)
         addi    r2,r2,0x4000
 
         bl      .iSeries_early_setup
+        bl      .early_setup
 
         /* relocation is on at this point */
 
@@ -1554,20 +1501,17 @@ copy_to_here:
         .section ".text";
         .align 2 ;
 
-        .globl  pmac_secondary_start_1  
-pmac_secondary_start_1: 
-        li      r24, 1
-        b       .pmac_secondary_start
-        
-        .globl pmac_secondary_start_2
-pmac_secondary_start_2: 
-        li      r24, 2
-        b       .pmac_secondary_start
-        
-        .globl pmac_secondary_start_3
-pmac_secondary_start_3:
-        li      r24, 3
-        b       .pmac_secondary_start
+        .globl  __secondary_start_pmac_0
+__secondary_start_pmac_0:
+        /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
+        li      r24,0
+        b       1f
+        li      r24,1
+        b       1f
+        li      r24,2
+        b       1f
+        li      r24,3
+1:
         
 _GLOBAL(pmac_secondary_start)
         /* turn on 64-bit mode */
@@ -1586,7 +1530,7 @@ _GLOBAL(pmac_secondary_start)
         LOADADDR(r4, paca)               /* Get base vaddr of paca array        */
         mulli   r13,r24,PACA_SIZE        /* Calculate vaddr of right paca */
         add     r13,r13,r4              /* for this processor.          */
-        mtspr   SPRG3,r13                /* Save vaddr of paca in SPRG3 */
+        mtspr   SPRN_SPRG3,r13           /* Save vaddr of paca in SPRG3 */
 
         /* Create a temp kernel stack for use before relocation is on.  */
         ld      r1,PACAEMERGSP(r13)
@@ -1621,7 +1565,7 @@ _GLOBAL(__secondary_start)
         /* Initialize the page table pointer register. */
         LOADADDR(r6,_SDR1)
         ld      r6,0(r6)                /* get the value of _SDR1        */
-        mtspr   SDR1,r6                 /* set the htab location         */
+        mtspr   SPRN_SDR1,r6                    /* set the htab location         */
 #endif
         /* Initialize the first segment table (or SLB) entry             */
         ld      r3,PACASTABVIRT(r13)    /* get addr of segment table     */
@@ -1650,7 +1594,7 @@ _GLOBAL(__secondary_start)
         lwz     r3,PLATFORM(r3)         /* r3 = platform flags           */
         andi.   r3,r3,PLATFORM_LPAR     /* Test if bit 0 is set (LPAR bit) */
         beq     98f                     /* branch if result is 0  */
-        mfspr   r3,PVR
+        mfspr   r3,SPRN_PVR
         srwi    r3,r3,16
         cmpwi   r3,0x37                 /* SStar  */
         beq     97f
@@ -1674,8 +1618,8 @@ _GLOBAL(__secondary_start)
 #ifdef DO_SOFT_DISABLE
         ori     r4,r4,MSR_EE
 #endif
-        mtspr   SRR0,r3
-        mtspr   SRR1,r4
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
         rfid
         b       .       /* prevent speculative execution */
 
@@ -1737,7 +1681,7 @@ _STATIC(start_here_multiplatform)
 
 #ifdef CONFIG_HMT
         /* Start up the second thread on cpu 0 */
-        mfspr   r3,PVR
+        mfspr   r3,SPRN_PVR
         srwi    r3,r3,16
         cmpwi   r3,0x34                 /* Pulsar  */
         beq     90f
@@ -1797,7 +1741,7 @@ _STATIC(start_here_multiplatform)
         mulli   r13,r27,PACA_SIZE       /* Calculate vaddr of right paca */
         add     r13,r13,r24             /* for this processor.           */
         sub     r13,r13,r26             /* convert to physical addr      */
-        mtspr   SPRG3,r13               /* PPPBBB: Temp... -Peter */
+        mtspr   SPRN_SPRG3,r13          /* PPPBBB: Temp... -Peter */
         
         /* Do very early kernel initializations, including initial hash table,
          * stab and slb setup before we turn on relocation.     */
@@ -1814,7 +1758,7 @@ _STATIC(start_here_multiplatform)
         lwz     r3,PLATFORM(r3)         /* r3 = platform flags */
         andi.   r3,r3,PLATFORM_LPAR     /* Test if bit 0 is set (LPAR bit) */
         beq     98f                     /* branch if result is 0  */
-        mfspr   r3,PVR
+        mfspr   r3,SPRN_PVR
         srwi    r3,r3,16
         cmpwi   r3,0x37                 /* SStar */
         beq     97f
@@ -1838,12 +1782,12 @@ _STATIC(start_here_multiplatform)
         LOADADDR(r6,_SDR1)              /* Only if NOT LPAR */
         sub     r6,r6,r26
         ld      r6,0(r6)                /* get the value of _SDR1 */
-        mtspr   SDR1,r6                 /* set the htab location  */
+        mtspr   SPRN_SDR1,r6                    /* set the htab location  */
 98: 
         LOADADDR(r3,.start_here_common)
         SET_REG_TO_CONST(r4, MSR_KERNEL)
-        mtspr   SRR0,r3
-        mtspr   SRR1,r4
+        mtspr   SPRN_SRR0,r3
+        mtspr   SPRN_SRR1,r4
         rfid
         b       .       /* prevent speculative execution */
 #endif /* CONFIG_PPC_MULTIPLATFORM */
@@ -1874,7 +1818,7 @@ _STATIC(start_here_common)
         LOADADDR(r24, paca)             /* Get base vaddr of paca array  */
         mulli   r13,r26,PACA_SIZE       /* Calculate vaddr of right paca */
         add     r13,r13,r24             /* for this processor.           */
-        mtspr   SPRG3,r13
+        mtspr   SPRN_SPRG3,r13
 
         /* ptr to current */
         LOADADDR(r4,init_task)
@@ -1901,7 +1845,7 @@ _STATIC(start_here_common)
 _GLOBAL(hmt_init)
 #ifdef CONFIG_HMT
         LOADADDR(r5, hmt_thread_data)
-        mfspr   r7,PVR
+        mfspr   r7,SPRN_PVR
         srwi    r7,r7,16
         cmpwi   r7,0x34                 /* Pulsar  */
         beq     90f
@@ -1910,10 +1854,10 @@ _GLOBAL(hmt_init)
         cmpwi   r7,0x37                 /* SStar   */
         beq     91f
         b       101f
-90:     mfspr   r6,PIR
+90:     mfspr   r6,SPRN_PIR
         andi.   r6,r6,0x1f
         b       92f
-91:     mfspr   r6,PIR
+91:     mfspr   r6,SPRN_PIR
         andi.   r6,r6,0x3ff
 92:     sldi    r4,r24,3
         stwx    r6,r5,r4
@@ -1924,8 +1868,8 @@ __hmt_secondary_hold:
         LOADADDR(r5, hmt_thread_data)
         clrldi  r5,r5,4
         li      r7,0
-        mfspr   r6,PIR
-        mfspr   r8,PVR
+        mfspr   r6,SPRN_PIR
+        mfspr   r8,SPRN_PVR
         srwi    r8,r8,16
         cmpwi   r8,0x34
         bne     93f
@@ -1951,39 +1895,41 @@ __hmt_secondary_hold:
 _GLOBAL(hmt_start_secondary)
         LOADADDR(r4,__hmt_secondary_hold)
         clrldi  r4,r4,4
-        mtspr   NIADORM, r4
-        mfspr   r4, MSRDORM
+        mtspr   SPRN_NIADORM, r4
+        mfspr   r4, SPRN_MSRDORM
         li      r5, -65
         and     r4, r4, r5
-        mtspr   MSRDORM, r4
+        mtspr   SPRN_MSRDORM, r4
         lis     r4,0xffef
         ori     r4,r4,0x7403
-        mtspr   TSC, r4
+        mtspr   SPRN_TSC, r4
         li      r4,0x1f4
-        mtspr   TST, r4
-        mfspr   r4, HID0
+        mtspr   SPRN_TST, r4
+        mfspr   r4, SPRN_HID0
         ori     r4, r4, 0x1
-        mtspr   HID0, r4
+        mtspr   SPRN_HID0, r4
         mfspr   r4, SPRN_CTRLF
         oris    r4, r4, 0x40
         mtspr   SPRN_CTRLT, r4
         blr
 #endif
 
-#if defined(CONFIG_KEXEC) || (defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES))
+#if defined(CONFIG_KEXEC) || defined(CONFIG_SMP)
 _GLOBAL(smp_release_cpus)
         /* All secondary cpus are spinning on a common
          * spinloop, release them all now so they can start
          * to spin on their individual paca spinloops.
          * For non SMP kernels, the secondary cpus never
          * get out of the common spinloop.
+         * XXX This does nothing useful on iSeries, secondaries are
+         * already waiting on their paca.
          */
         li      r3,1
         LOADADDR(r5,__secondary_hold_spinloop)
         std     r3,0(r5)
         sync
         blr
-#endif /* CONFIG_SMP && !CONFIG_PPC_ISERIES */
+#endif /* CONFIG_SMP */
 
 
 /*
@@ -1992,7 +1938,7 @@ _GLOBAL(smp_release_cpus)
  */
         .section ".bss"
 
-        .align  12
+        .align  PAGE_SHIFT
 
         .globl  empty_zero_page
 empty_zero_page:
diff --git a/arch/ppc64/kernel/hvcserver.c b/arch/ppc64/kernel/hvcserver.c
index bde8f42da854..4d584172055a 100644
--- a/arch/ppc64/kernel/hvcserver.c
+++ b/arch/ppc64/kernel/hvcserver.c
@@ -22,6 +22,8 @@
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/slab.h>
+
 #include <asm/hvcall.h>
 #include <asm/hvcserver.h>
 #include <asm/io.h>
diff --git a/arch/ppc64/kernel/i8259.c b/arch/ppc64/kernel/i8259.c
deleted file mode 100644
index 74dcfd68fc75..000000000000
--- a/arch/ppc64/kernel/i8259.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * c 2001 PPC64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/stddef.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/cache.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/ppcdebug.h>
-#include "i8259.h"
-
-unsigned char cached_8259[2] = { 0xff, 0xff };
-#define cached_A1 (cached_8259[0])
-#define cached_21 (cached_8259[1])
-
-static  __cacheline_aligned_in_smp DEFINE_SPINLOCK(i8259_lock);
-
-static int i8259_pic_irq_offset;
-static int i8259_present;
-
-int i8259_irq(int cpu)
-{
-        int irq;
-        
-        spin_lock/*_irqsave*/(&i8259_lock/*, flags*/);
-        /*
-         * Perform an interrupt acknowledge cycle on controller 1
-         */                                                             
-        outb(0x0C, 0x20);
-        irq = inb(0x20) & 7;                                   
-        if (irq == 2)                                                     
-        {                                                                   
-                /*                                     
-                 * Interrupt is cascaded so perform interrupt
-                 * acknowledge on controller 2
-                 */
-                outb(0x0C, 0xA0);                      
-                irq = (inb(0xA0) & 7) + 8;
-        }
-        else if (irq==7)                                
-        {
-                /*                               
-                 * This may be a spurious interrupt
-                 *                         
-                 * Read the interrupt status register. If the most
-                 * significant bit is not set then there is no valid
-                 * interrupt
-                 */
-                outb(0x0b, 0x20);
-                if(~inb(0x20)&0x80) {
-                        spin_unlock/*_irqrestore*/(&i8259_lock/*, flags*/);
-                        return -1;
-                }
-        }
-        spin_unlock/*_irqrestore*/(&i8259_lock/*, flags*/);
-        return irq;
-}
-
-static void i8259_mask_and_ack_irq(unsigned int irq_nr)
-{
-        unsigned long flags;
-        
-        spin_lock_irqsave(&i8259_lock, flags);
-        if ( irq_nr >= i8259_pic_irq_offset )
-                irq_nr -= i8259_pic_irq_offset;
-
-        if (irq_nr > 7) {                                                   
-                cached_A1 |= 1 << (irq_nr-8);                                   
-                inb(0xA1);      /* DUMMY */                                     
-                outb(cached_A1,0xA1);                                           
-                outb(0x20,0xA0);        /* Non-specific EOI */             
-                outb(0x20,0x20);        /* Non-specific EOI to cascade */
-        } else {                                                            
-                cached_21 |= 1 << irq_nr;                                   
-                inb(0x21);      /* DUMMY */                                 
-                outb(cached_21,0x21);
-                outb(0x20,0x20);        /* Non-specific EOI */                 
-        }                                                                
-        spin_unlock_irqrestore(&i8259_lock, flags);
-}
-
-static void i8259_set_irq_mask(int irq_nr)
-{
-        outb(cached_A1,0xA1);
-        outb(cached_21,0x21);
-}
-
-static void i8259_mask_irq(unsigned int irq_nr)
-{
-        unsigned long flags;
-
-        spin_lock_irqsave(&i8259_lock, flags);
-        if ( irq_nr >= i8259_pic_irq_offset )
-                irq_nr -= i8259_pic_irq_offset;
-        if ( irq_nr < 8 )
-                cached_21 |= 1 << irq_nr;
-        else
-                cached_A1 |= 1 << (irq_nr-8);
-        i8259_set_irq_mask(irq_nr);
-        spin_unlock_irqrestore(&i8259_lock, flags);
-}
-
-static void i8259_unmask_irq(unsigned int irq_nr)
-{
-        unsigned long flags;
-
-        spin_lock_irqsave(&i8259_lock, flags);
-        if ( irq_nr >= i8259_pic_irq_offset )
-                irq_nr -= i8259_pic_irq_offset;
-        if ( irq_nr < 8 )
-                cached_21 &= ~(1 << irq_nr);
-        else
-                cached_A1 &= ~(1 << (irq_nr-8));
-        i8259_set_irq_mask(irq_nr);
-        spin_unlock_irqrestore(&i8259_lock, flags);
-}
-
-static void i8259_end_irq(unsigned int irq)
-{
-        if (!(get_irq_desc(irq)->status & (IRQ_DISABLED|IRQ_INPROGRESS)) &&
-            get_irq_desc(irq)->action)
-                i8259_unmask_irq(irq);
-}
-
-struct hw_interrupt_type i8259_pic = {
-        .typename = " i8259    ",
-        .enable = i8259_unmask_irq,
-        .disable = i8259_mask_irq,
-        .ack = i8259_mask_and_ack_irq,
-        .end = i8259_end_irq,
-};
-
-void __init i8259_init(int offset)
-{
-        unsigned long flags;
-        
-        spin_lock_irqsave(&i8259_lock, flags);
-        i8259_pic_irq_offset = offset;
-        i8259_present = 1;
-        /* init master interrupt controller */
-        outb(0x11, 0x20); /* Start init sequence */
-        outb(0x00, 0x21); /* Vector base */
-        outb(0x04, 0x21); /* edge tiggered, Cascade (slave) on IRQ2 */
-        outb(0x01, 0x21); /* Select 8086 mode */
-        outb(0xFF, 0x21); /* Mask all */
-        /* init slave interrupt controller */
-        outb(0x11, 0xA0); /* Start init sequence */
-        outb(0x08, 0xA1); /* Vector base */
-        outb(0x02, 0xA1); /* edge triggered, Cascade (slave) on IRQ2 */
-        outb(0x01, 0xA1); /* Select 8086 mode */
-        outb(0xFF, 0xA1); /* Mask all */
-        outb(cached_A1, 0xA1);
-        outb(cached_21, 0x21);
-        spin_unlock_irqrestore(&i8259_lock, flags);
-        
-}
-
-static int i8259_request_cascade(void)
-{
-        if (!i8259_present)
-                return -ENODEV;
-
-        request_irq( i8259_pic_irq_offset + 2, no_action, SA_INTERRUPT,
-                     "82c59 secondary cascade", NULL );
-
-        return 0;
-}
-
-arch_initcall(i8259_request_cascade);
diff --git a/arch/ppc64/kernel/i8259.h b/arch/ppc64/kernel/i8259.h
deleted file mode 100644
index f74764ba0bfa..000000000000
--- a/arch/ppc64/kernel/i8259.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * c 2001 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _PPC_KERNEL_i8259_H
-#define _PPC_KERNEL_i8259_H
-
-extern struct hw_interrupt_type i8259_pic;
-
-extern void i8259_init(int offset);
-extern int i8259_irq(int);
-
-#endif /* _PPC_KERNEL_i8259_H */
diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
index 954395d42636..8abd2ad92832 100644
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -31,7 +31,7 @@
 
 extern void power4_idle(void);
 
-int default_idle(void)
+void default_idle(void)
 {
         long oldval;
         unsigned int cpu = smp_processor_id();
@@ -64,11 +64,9 @@ int default_idle(void)
                 if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
                         cpu_die();
         }
-
-        return 0;
 }
 
-int native_idle(void)
+void native_idle(void)
 {
         while (1) {
                 ppc64_runlatch_off();
@@ -85,8 +83,6 @@ int native_idle(void)
                     system_state == SYSTEM_RUNNING)
                         cpu_die();
         }
-
-        return 0;
 }
 
 void cpu_idle(void)
diff --git a/arch/ppc64/kernel/ioctl32.c b/arch/ppc64/kernel/ioctl32.c
index a8005db23ec5..ba4a899045c2 100644
--- a/arch/ppc64/kernel/ioctl32.c
+++ b/arch/ppc64/kernel/ioctl32.c
@@ -39,9 +39,7 @@ IOCTL_TABLE_START
 #include <linux/compat_ioctl.h>
 #define DECLARES
 #include "compat_ioctl.c"
-COMPATIBLE_IOCTL(TIOCSTART)
-COMPATIBLE_IOCTL(TIOCSTOP)
-COMPATIBLE_IOCTL(TIOCSLTC)
+
 /* Little p (/dev/rtc, /dev/envctrl, etc.) */
 COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
 COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c
index 9c6facc24f70..ed876a5178ae 100644
--- a/arch/ppc64/kernel/kprobes.c
+++ b/arch/ppc64/kernel/kprobes.c
@@ -395,7 +395,6 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
                 if (post_kprobe_handler(args->regs))
                         ret = NOTIFY_STOP;
                 break;
-        case DIE_GPF:
         case DIE_PAGE_FAULT:
                 if (kprobe_running() &&
                     kprobe_fault_handler(args->regs, args->trapnr))
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index e7241ad80a08..077507ffbab8 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -28,6 +28,7 @@
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
 #include <asm/cputable.h>
+#include <asm/thread_info.h>
 
         .text
 
@@ -64,44 +65,6 @@ _GLOBAL(get_srr1)
 _GLOBAL(get_sp)
         mr      r3,r1
         blr
-                
-#ifdef CONFIG_PPC_ISERIES
-/* unsigned long local_save_flags(void) */
-_GLOBAL(local_get_flags)
-        lbz     r3,PACAPROCENABLED(r13)
-        blr
-
-/* unsigned long local_irq_disable(void) */
-_GLOBAL(local_irq_disable)
-        lbz     r3,PACAPROCENABLED(r13)
-        li      r4,0
-        stb     r4,PACAPROCENABLED(r13)
-        blr                     /* Done */
-
-/* void local_irq_restore(unsigned long flags) */       
-_GLOBAL(local_irq_restore)
-        lbz     r5,PACAPROCENABLED(r13)
-         /* Check if things are setup the way we want _already_. */
-        cmpw    0,r3,r5
-        beqlr
-        /* are we enabling interrupts? */
-        cmpdi   0,r3,0
-        stb     r3,PACAPROCENABLED(r13)
-        beqlr
-        /* Check pending interrupts */
-        /*   A decrementer, IPI or PMC interrupt may have occurred
-         *   while we were in the hypervisor (which enables) */
-        ld      r4,PACALPPACA+LPPACAANYINT(r13)
-        cmpdi   r4,0
-        beqlr
-
-        /*
-         * Handle pending interrupts in interrupt context
-         */
-        li      r0,0x5555
-        sc
-        blr
-#endif /* CONFIG_PPC_ISERIES */
 
 #ifdef CONFIG_IRQSTACKS
 _GLOBAL(call_do_softirq)
@@ -329,7 +292,7 @@ _GLOBAL(__flush_dcache_icache)
 
 /* Flush the dcache */
         ld      r7,PPC64_CACHES@toc(r2)
-        clrrdi  r3,r3,12                    /* Page align */
+        clrrdi  r3,r3,PAGE_SHIFT                    /* Page align */
         lwz     r4,DCACHEL1LINESPERPAGE(r7)     /* Get # dcache lines per page */
         lwz     r5,DCACHEL1LINESIZE(r7)         /* Get dcache line size */
         mr      r6,r3
@@ -488,25 +451,6 @@ _GLOBAL(_outsl_ns)
         sync
         blr     
 
-
-_GLOBAL(cvt_fd)
-        lfd     0,0(r5)         /* load up fpscr value */
-        mtfsf   0xff,0
-        lfs     0,0(r3)
-        stfd    0,0(r4)
-        mffs    0               /* save new fpscr value */
-        stfd    0,0(r5)
-        blr
-
-_GLOBAL(cvt_df)
-        lfd     0,0(r5)         /* load up fpscr value */
-        mtfsf   0xff,0
-        lfd     0,0(r3)
-        stfs    0,0(r4)
-        mffs    0               /* save new fpscr value */
-        stfd    0,0(r5)
-        blr
-
 /*
  * identify_cpu and calls setup_cpu
  * In:  r3 = base of the cpu_specs array
@@ -692,38 +636,6 @@ _GLOBAL(disable_kernel_fp)
         isync
         blr
 
-/*
- * giveup_fpu(tsk)
- * Disable FP for the task given as the argument,
- * and save the floating-point registers in its thread_struct.
- * Enables the FPU for use in the kernel on return.
- */
-_GLOBAL(giveup_fpu)
-        mfmsr   r5
-        ori     r5,r5,MSR_FP
-        mtmsrd  r5                      /* enable use of fpu now */
-        isync
-        cmpdi   0,r3,0
-        beqlr-                          /* if no previous owner, done */
-        addi    r3,r3,THREAD            /* want THREAD of task */
-        ld      r5,PT_REGS(r3)
-        cmpdi   0,r5,0
-        SAVE_32FPRS(0, r3)
-        mffs    fr0
-        stfd    fr0,THREAD_FPSCR(r3)
-        beq     1f
-        ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-        li      r3,MSR_FP|MSR_FE0|MSR_FE1
-        andc    r4,r4,r3                /* disable FP for previous task */
-        std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#ifndef CONFIG_SMP
-        li      r5,0
-        ld      r4,last_task_used_math@got(r2)
-        std     r5,0(r4)
-#endif /* CONFIG_SMP */
-        blr
-
 #ifdef CONFIG_ALTIVEC
 
 #if 0 /* this has no callers for now */
@@ -778,6 +690,13 @@ _GLOBAL(giveup_altivec)
 _GLOBAL(__setup_cpu_power3)
         blr
 
+_GLOBAL(execve)
+        li      r0,__NR_execve
+        sc
+        bnslr
+        neg     r3,r3
+        blr
+
 /* kexec_wait(phys_cpu)
  *
  * wait for the flag to change, indicating this kernel is going away but
@@ -948,566 +867,3 @@ _GLOBAL(kexec_sequence)
         li      r5,0
         blr     /* image->start(physid, image->start, 0); */
 #endif /* CONFIG_KEXEC */
-
-/* Why isn't this a) automatic, b) written in 'C'? */   
-        .balign 8
-_GLOBAL(sys_call_table32)
-        .llong .sys_restart_syscall     /* 0 */
-        .llong .sys_exit
-        .llong .ppc_fork
-        .llong .sys_read
-        .llong .sys_write
-        .llong .compat_sys_open         /* 5 */
-        .llong .sys_close
-        .llong .sys32_waitpid
-        .llong .sys32_creat
-        .llong .sys_link
-        .llong .sys_unlink              /* 10 */
-        .llong .sys32_execve
-        .llong .sys_chdir
-        .llong .compat_sys_time
-        .llong .sys_mknod
-        .llong .sys_chmod               /* 15 */
-        .llong .sys_lchown
-        .llong .sys_ni_syscall          /* old break syscall */
-        .llong .sys_ni_syscall          /* old stat syscall */
-        .llong .ppc32_lseek
-        .llong .sys_getpid              /* 20 */
-        .llong .compat_sys_mount
-        .llong .sys_oldumount
-        .llong .sys_setuid
-        .llong .sys_getuid
-        .llong .compat_sys_stime        /* 25 */
-        .llong .sys32_ptrace
-        .llong .sys_alarm
-        .llong .sys_ni_syscall          /* old fstat syscall */
-        .llong .sys32_pause
-        .llong .compat_sys_utime                /* 30 */
-        .llong .sys_ni_syscall          /* old stty syscall */
-        .llong .sys_ni_syscall          /* old gtty syscall */
-        .llong .sys32_access
-        .llong .sys32_nice
-        .llong .sys_ni_syscall          /* 35 - old ftime syscall */
-        .llong .sys_sync
-        .llong .sys32_kill
-        .llong .sys_rename
-        .llong .sys32_mkdir
-        .llong .sys_rmdir               /* 40 */
-        .llong .sys_dup
-        .llong .sys_pipe
-        .llong .compat_sys_times
-        .llong .sys_ni_syscall          /* old prof syscall */
-        .llong .sys_brk                 /* 45 */
-        .llong .sys_setgid
-        .llong .sys_getgid
-        .llong .sys_signal
-        .llong .sys_geteuid
-        .llong .sys_getegid             /* 50 */
-        .llong .sys_acct
-        .llong .sys_umount
-        .llong .sys_ni_syscall          /* old lock syscall */
-        .llong .compat_sys_ioctl
-        .llong .compat_sys_fcntl                /* 55 */
-        .llong .sys_ni_syscall          /* old mpx syscall */
-        .llong .sys32_setpgid
-        .llong .sys_ni_syscall          /* old ulimit syscall */
-        .llong .sys32_olduname
-        .llong .sys32_umask             /* 60 */
-        .llong .sys_chroot
-        .llong .sys_ustat
-        .llong .sys_dup2
-        .llong .sys_getppid
-        .llong .sys_getpgrp             /* 65 */
-        .llong .sys_setsid
-        .llong .sys32_sigaction
-        .llong .sys_sgetmask
-        .llong .sys32_ssetmask
-        .llong .sys_setreuid            /* 70 */
-        .llong .sys_setregid
-        .llong .ppc32_sigsuspend
-        .llong .compat_sys_sigpending
-        .llong .sys32_sethostname
-        .llong .compat_sys_setrlimit            /* 75 */
-        .llong .compat_sys_old_getrlimit
-        .llong .compat_sys_getrusage
-        .llong .sys32_gettimeofday
-        .llong .sys32_settimeofday
-        .llong .sys32_getgroups         /* 80 */
-        .llong .sys32_setgroups
-        .llong .sys_ni_syscall          /* old select syscall */
-        .llong .sys_symlink
-        .llong .sys_ni_syscall          /* old lstat syscall */
-        .llong .sys32_readlink          /* 85 */
-        .llong .sys_uselib
-        .llong .sys_swapon
-        .llong .sys_reboot
-        .llong .old32_readdir
-        .llong .sys_mmap                /* 90 */
-        .llong .sys_munmap
-        .llong .sys_truncate
-        .llong .sys_ftruncate
-        .llong .sys_fchmod
-        .llong .sys_fchown              /* 95 */
-        .llong .sys32_getpriority
-        .llong .sys32_setpriority
-        .llong .sys_ni_syscall          /* old profil syscall */
-        .llong .compat_sys_statfs
-        .llong .compat_sys_fstatfs              /* 100 */
-        .llong .sys_ni_syscall          /* old ioperm syscall */
-        .llong .compat_sys_socketcall
-        .llong .sys32_syslog
-        .llong .compat_sys_setitimer
-        .llong .compat_sys_getitimer            /* 105 */
-        .llong .compat_sys_newstat
-        .llong .compat_sys_newlstat
-        .llong .compat_sys_newfstat
-        .llong .sys32_uname
-        .llong .sys_ni_syscall          /* 110 old iopl syscall */
-        .llong .sys_vhangup
-        .llong .sys_ni_syscall          /* old idle syscall */
-        .llong .sys_ni_syscall          /* old vm86 syscall */
-        .llong .compat_sys_wait4
-        .llong .sys_swapoff             /* 115 */
-        .llong .sys32_sysinfo
-        .llong .sys32_ipc
-        .llong .sys_fsync
-        .llong .ppc32_sigreturn
-        .llong .ppc_clone               /* 120 */
-        .llong .sys32_setdomainname
-        .llong .ppc64_newuname
-        .llong .sys_ni_syscall          /* old modify_ldt syscall */
-        .llong .sys32_adjtimex
-        .llong .sys_mprotect            /* 125 */
-        .llong .compat_sys_sigprocmask
-        .llong .sys_ni_syscall          /* old create_module syscall */
-        .llong .sys_init_module
-        .llong .sys_delete_module
-        .llong .sys_ni_syscall          /* 130 old get_kernel_syms syscall */
-        .llong .sys_quotactl
-        .llong .sys32_getpgid
-        .llong .sys_fchdir
-        .llong .sys_bdflush
-        .llong .sys32_sysfs             /* 135 */
-        .llong .ppc64_personality
-        .llong .sys_ni_syscall          /* for afs_syscall */
-        .llong .sys_setfsuid
-        .llong .sys_setfsgid
-        .llong .sys_llseek              /* 140 */
-        .llong .sys32_getdents
-        .llong .ppc32_select
-        .llong .sys_flock
-        .llong .sys_msync
-        .llong .compat_sys_readv        /* 145 */
-        .llong .compat_sys_writev
-        .llong .sys32_getsid
-        .llong .sys_fdatasync
-        .llong .sys32_sysctl
-        .llong .sys_mlock               /* 150 */
-        .llong .sys_munlock
-        .llong .sys_mlockall
-        .llong .sys_munlockall
-        .llong .sys32_sched_setparam
-        .llong .sys32_sched_getparam    /* 155 */
-        .llong .sys32_sched_setscheduler
-        .llong .sys32_sched_getscheduler
-        .llong .sys_sched_yield
-        .llong .sys32_sched_get_priority_max
-        .llong .sys32_sched_get_priority_min  /* 160 */
-        .llong .sys32_sched_rr_get_interval
-        .llong .compat_sys_nanosleep
-        .llong .sys_mremap
-        .llong .sys_setresuid
-        .llong .sys_getresuid           /* 165 */
-        .llong .sys_ni_syscall          /* old query_module syscall */
-        .llong .sys_poll
-        .llong .compat_sys_nfsservctl
-        .llong .sys_setresgid
-        .llong .sys_getresgid           /* 170 */
-        .llong .sys32_prctl
-        .llong .ppc32_rt_sigreturn
-        .llong .sys32_rt_sigaction
-        .llong .sys32_rt_sigprocmask
-        .llong .sys32_rt_sigpending     /* 175 */
-        .llong .compat_sys_rt_sigtimedwait
-        .llong .sys32_rt_sigqueueinfo
-        .llong .ppc32_rt_sigsuspend
-        .llong .sys32_pread64
-        .llong .sys32_pwrite64          /* 180 */
-        .llong .sys_chown
-        .llong .sys_getcwd
-        .llong .sys_capget
-        .llong .sys_capset
-        .llong .sys32_sigaltstack       /* 185 */
-        .llong .sys32_sendfile
-        .llong .sys_ni_syscall          /* reserved for streams1 */
-        .llong .sys_ni_syscall          /* reserved for streams2 */
-        .llong .ppc_vfork
-        .llong .compat_sys_getrlimit            /* 190 */
-        .llong .sys32_readahead
-        .llong .sys32_mmap2
-        .llong .sys32_truncate64
-        .llong .sys32_ftruncate64
-        .llong .sys_stat64              /* 195 */
-        .llong .sys_lstat64
-        .llong .sys_fstat64
-        .llong .sys32_pciconfig_read
-        .llong .sys32_pciconfig_write
-        .llong .sys32_pciconfig_iobase  /* 200 - pciconfig_iobase */
-        .llong .sys_ni_syscall          /* reserved for MacOnLinux */
-        .llong .sys_getdents64
-        .llong .sys_pivot_root
-        .llong .compat_sys_fcntl64
-        .llong .sys_madvise             /* 205 */
-        .llong .sys_mincore
-        .llong .sys_gettid
-        .llong .sys_tkill
-        .llong .sys_setxattr
-        .llong .sys_lsetxattr           /* 210 */
-        .llong .sys_fsetxattr
-        .llong .sys_getxattr
-        .llong .sys_lgetxattr
-        .llong .sys_fgetxattr
-        .llong .sys_listxattr           /* 215 */
-        .llong .sys_llistxattr
-        .llong .sys_flistxattr
-        .llong .sys_removexattr
-        .llong .sys_lremovexattr
-        .llong .sys_fremovexattr        /* 220 */
-        .llong .compat_sys_futex
-        .llong .compat_sys_sched_setaffinity
-        .llong .compat_sys_sched_getaffinity
-        .llong .sys_ni_syscall
-        .llong .sys_ni_syscall          /* 225 - reserved for tux */
-        .llong .sys32_sendfile64
-        .llong .compat_sys_io_setup
-        .llong .sys_io_destroy
-        .llong .compat_sys_io_getevents
-        .llong .compat_sys_io_submit
-        .llong .sys_io_cancel
-        .llong .sys_set_tid_address
-        .llong .ppc32_fadvise64
-        .llong .sys_exit_group
-        .llong .ppc32_lookup_dcookie    /* 235 */
-        .llong .sys_epoll_create
-        .llong .sys_epoll_ctl
-        .llong .sys_epoll_wait
-        .llong .sys_remap_file_pages
-        .llong .ppc32_timer_create      /* 240 */
-        .llong .compat_sys_timer_settime
-        .llong .compat_sys_timer_gettime
-        .llong .sys_timer_getoverrun
-        .llong .sys_timer_delete
-        .llong .compat_sys_clock_settime        /* 245 */
-        .llong .compat_sys_clock_gettime
-        .llong .compat_sys_clock_getres
-        .llong .compat_sys_clock_nanosleep
-        .llong .ppc32_swapcontext
-        .llong .sys32_tgkill            /* 250 */
-        .llong .sys32_utimes
-        .llong .compat_sys_statfs64
-        .llong .compat_sys_fstatfs64
-        .llong .ppc32_fadvise64_64      /* 32bit only fadvise64_64 */
-        .llong .ppc_rtas                /* 255 */
-        .llong .sys_ni_syscall          /* 256 reserved for sys_debug_setcontext */
-        .llong .sys_ni_syscall          /* 257 reserved for vserver */
-        .llong .sys_ni_syscall          /* 258 reserved for new sys_remap_file_pages */
-        .llong .compat_sys_mbind
-        .llong .compat_sys_get_mempolicy        /* 260 */
-        .llong .compat_sys_set_mempolicy
-        .llong .compat_sys_mq_open
-        .llong .sys_mq_unlink
-        .llong .compat_sys_mq_timedsend
-        .llong .compat_sys_mq_timedreceive /* 265 */
-        .llong .compat_sys_mq_notify
-        .llong .compat_sys_mq_getsetattr
-        .llong .compat_sys_kexec_load
-        .llong .sys32_add_key
-        .llong .sys32_request_key       /* 270 */
-        .llong .compat_sys_keyctl
-        .llong .compat_sys_waitid
-        .llong .sys32_ioprio_set
-        .llong .sys32_ioprio_get
-        .llong .sys_inotify_init        /* 275 */
-        .llong .sys_inotify_add_watch
-        .llong .sys_inotify_rm_watch
-
-        .balign 8
-_GLOBAL(sys_call_table)
-        .llong .sys_restart_syscall     /* 0 */
-        .llong .sys_exit
-        .llong .ppc_fork
-        .llong .sys_read
-        .llong .sys_write
-        .llong .sys_open                /* 5 */
-        .llong .sys_close
-        .llong .sys_waitpid
-        .llong .sys_creat
-        .llong .sys_link
-        .llong .sys_unlink              /* 10 */
-        .llong .sys_execve
-        .llong .sys_chdir
-        .llong .sys64_time
-        .llong .sys_mknod
-        .llong .sys_chmod               /* 15 */
-        .llong .sys_lchown
-        .llong .sys_ni_syscall          /* old break syscall */
-        .llong .sys_ni_syscall          /* old stat syscall */
-        .llong .sys_lseek
-        .llong .sys_getpid              /* 20 */
-        .llong .sys_mount
-        .llong .sys_ni_syscall          /* old umount syscall */
-        .llong .sys_setuid
-        .llong .sys_getuid
-        .llong .sys_stime               /* 25 */
-        .llong .sys_ptrace
-        .llong .sys_alarm
-        .llong .sys_ni_syscall          /* old fstat syscall */
-        .llong .sys_pause
-        .llong .sys_utime               /* 30 */
-        .llong .sys_ni_syscall          /* old stty syscall */
-        .llong .sys_ni_syscall          /* old gtty syscall */
-        .llong .sys_access
-        .llong .sys_nice
-        .llong .sys_ni_syscall          /* 35 - old ftime syscall */
-        .llong .sys_sync
-        .llong .sys_kill
-        .llong .sys_rename
-        .llong .sys_mkdir
-        .llong .sys_rmdir               /* 40 */
-        .llong .sys_dup
-        .llong .sys_pipe
-        .llong .sys_times
-        .llong .sys_ni_syscall          /* old prof syscall */
-        .llong .sys_brk                 /* 45 */
-        .llong .sys_setgid
-        .llong .sys_getgid
-        .llong .sys_signal
-        .llong .sys_geteuid
-        .llong .sys_getegid             /* 50 */
-        .llong .sys_acct
-        .llong .sys_umount
-        .llong .sys_ni_syscall          /* old lock syscall */
-        .llong .sys_ioctl
-        .llong .sys_fcntl               /* 55 */
-        .llong .sys_ni_syscall          /* old mpx syscall */
-        .llong .sys_setpgid
-        .llong .sys_ni_syscall          /* old ulimit syscall */
-        .llong .sys_ni_syscall          /* old uname syscall */
-        .llong .sys_umask               /* 60 */
-        .llong .sys_chroot
-        .llong .sys_ustat
-        .llong .sys_dup2
-        .llong .sys_getppid
-        .llong .sys_getpgrp             /* 65 */
-        .llong .sys_setsid
-        .llong .sys_ni_syscall
-        .llong .sys_sgetmask
-        .llong .sys_ssetmask
-        .llong .sys_setreuid            /* 70 */
-        .llong .sys_setregid
-        .llong .sys_ni_syscall
-        .llong .sys_ni_syscall
-        .llong .sys_sethostname
-        .llong .sys_setrlimit           /* 75 */
-        .llong .sys_ni_syscall          /* old getrlimit syscall */
-        .llong .sys_getrusage
-        .llong .sys_gettimeofday
-        .llong .sys_settimeofday
-        .llong .sys_getgroups           /* 80 */
-        .llong .sys_setgroups
-        .llong .sys_ni_syscall          /* old select syscall */
-        .llong .sys_symlink
-        .llong .sys_ni_syscall          /* old lstat syscall */
-        .llong .sys_readlink            /* 85 */
-        .llong .sys_uselib
-        .llong .sys_swapon
-        .llong .sys_reboot
-        .llong .sys_ni_syscall          /* old readdir syscall */
-        .llong .sys_mmap                /* 90 */
-        .llong .sys_munmap
-        .llong .sys_truncate
-        .llong .sys_ftruncate
-        .llong .sys_fchmod
-        .llong .sys_fchown              /* 95 */
-        .llong .sys_getpriority
-        .llong .sys_setpriority
-        .llong .sys_ni_syscall          /* old profil syscall holder */
-        .llong .sys_statfs
-        .llong .sys_fstatfs             /* 100 */
-        .llong .sys_ni_syscall          /* old ioperm syscall */
-        .llong .sys_socketcall
-        .llong .sys_syslog
-        .llong .sys_setitimer
-        .llong .sys_getitimer           /* 105 */
-        .llong .sys_newstat
-        .llong .sys_newlstat
-        .llong .sys_newfstat
-        .llong .sys_ni_syscall          /* old uname syscall */
-        .llong .sys_ni_syscall          /* 110 old iopl syscall */
-        .llong .sys_vhangup
-        .llong .sys_ni_syscall          /* old idle syscall */
-        .llong .sys_ni_syscall          /* old vm86 syscall */
-        .llong .sys_wait4
-        .llong .sys_swapoff             /* 115 */
-        .llong .sys_sysinfo
-        .llong .sys_ipc
-        .llong .sys_fsync
-        .llong .sys_ni_syscall
-        .llong .ppc_clone               /* 120 */
-        .llong .sys_setdomainname
-        .llong .ppc64_newuname
-        .llong .sys_ni_syscall          /* old modify_ldt syscall */
-        .llong .sys_adjtimex
-        .llong .sys_mprotect            /* 125 */
-        .llong .sys_ni_syscall
-        .llong .sys_ni_syscall          /* old create_module syscall */
-        .llong .sys_init_module
-        .llong .sys_delete_module
-        .llong .sys_ni_syscall          /* 130 old get_kernel_syms syscall */
-        .llong .sys_quotactl
-        .llong .sys_getpgid
-        .llong .sys_fchdir
-        .llong .sys_bdflush
-        .llong .sys_sysfs               /* 135 */
-        .llong .ppc64_personality
-        .llong .sys_ni_syscall          /* for afs_syscall */
-        .llong .sys_setfsuid
-        .llong .sys_setfsgid
-        .llong .sys_llseek              /* 140 */
-        .llong .sys_getdents
-        .llong .sys_select
-        .llong .sys_flock
-        .llong .sys_msync
-        .llong .sys_readv               /* 145 */
-        .llong .sys_writev
-        .llong .sys_getsid
-        .llong .sys_fdatasync
-        .llong .sys_sysctl
-        .llong .sys_mlock               /* 150 */
-        .llong .sys_munlock
-        .llong .sys_mlockall
-        .llong .sys_munlockall
-        .llong .sys_sched_setparam
-        .llong .sys_sched_getparam      /* 155 */
-        .llong .sys_sched_setscheduler
-        .llong .sys_sched_getscheduler
-        .llong .sys_sched_yield
-        .llong .sys_sched_get_priority_max
-        .llong .sys_sched_get_priority_min  /* 160 */
-        .llong .sys_sched_rr_get_interval
-        .llong .sys_nanosleep
-        .llong .sys_mremap
-        .llong .sys_setresuid
-        .llong .sys_getresuid           /* 165 */
-        .llong .sys_ni_syscall          /* old query_module syscall */
-        .llong .sys_poll
-        .llong .sys_nfsservctl
-        .llong .sys_setresgid
-        .llong .sys_getresgid           /* 170 */
-        .llong .sys_prctl
-        .llong .ppc64_rt_sigreturn
-        .llong .sys_rt_sigaction
-        .llong .sys_rt_sigprocmask      
-        .llong .sys_rt_sigpending       /* 175 */
-        .llong .sys_rt_sigtimedwait
-        .llong .sys_rt_sigqueueinfo
-        .llong .ppc64_rt_sigsuspend
-        .llong .sys_pread64
-        .llong .sys_pwrite64            /* 180 */
-        .llong .sys_chown
-        .llong .sys_getcwd
-        .llong .sys_capget
-        .llong .sys_capset
-        .llong .sys_sigaltstack         /* 185 */
-        .llong .sys_sendfile64
-        .llong .sys_ni_syscall          /* reserved for streams1 */
-        .llong .sys_ni_syscall          /* reserved for streams2 */
-        .llong .ppc_vfork
-        .llong .sys_getrlimit           /* 190 */
-        .llong .sys_readahead
-        .llong .sys_ni_syscall          /* 32bit only mmap2 */
-        .llong .sys_ni_syscall          /* 32bit only truncate64 */
-        .llong .sys_ni_syscall          /* 32bit only ftruncate64 */
-        .llong .sys_ni_syscall          /* 195 - 32bit only stat64 */
-        .llong .sys_ni_syscall          /* 32bit only lstat64 */
-        .llong .sys_ni_syscall          /* 32bit only fstat64 */
-        .llong .sys_pciconfig_read
-        .llong .sys_pciconfig_write
-        .llong .sys_pciconfig_iobase    /* 200 - pciconfig_iobase */
-        .llong .sys_ni_syscall          /* reserved for MacOnLinux */
-        .llong .sys_getdents64
-        .llong .sys_pivot_root
-        .llong .sys_ni_syscall          /* 32bit only fcntl64 */
-        .llong .sys_madvise             /* 205 */
-        .llong .sys_mincore
-        .llong .sys_gettid
-        .llong .sys_tkill
-        .llong .sys_setxattr
-        .llong .sys_lsetxattr           /* 210 */
-        .llong .sys_fsetxattr
-        .llong .sys_getxattr
-        .llong .sys_lgetxattr
-        .llong .sys_fgetxattr
-        .llong .sys_listxattr           /* 215 */
-        .llong .sys_llistxattr
-        .llong .sys_flistxattr
-        .llong .sys_removexattr
-        .llong .sys_lremovexattr
-        .llong .sys_fremovexattr        /* 220 */
-        .llong .sys_futex
-        .llong .sys_sched_setaffinity
-        .llong .sys_sched_getaffinity
-        .llong .sys_ni_syscall
-        .llong .sys_ni_syscall          /* 225 - reserved for tux */
-        .llong .sys_ni_syscall          /* 32bit only sendfile64 */
-        .llong .sys_io_setup
-        .llong .sys_io_destroy
-        .llong .sys_io_getevents
-        .llong .sys_io_submit           /* 230 */
-        .llong .sys_io_cancel
-        .llong .sys_set_tid_address
-        .llong .sys_fadvise64
-        .llong .sys_exit_group
-        .llong .sys_lookup_dcookie      /* 235 */
-        .llong .sys_epoll_create
-        .llong .sys_epoll_ctl
-        .llong .sys_epoll_wait
-        .llong .sys_remap_file_pages
-        .llong .sys_timer_create        /* 240 */
-        .llong .sys_timer_settime
-        .llong .sys_timer_gettime
-        .llong .sys_timer_getoverrun
-        .llong .sys_timer_delete
-        .llong .sys_clock_settime       /* 245 */
-        .llong .sys_clock_gettime
-        .llong .sys_clock_getres
-        .llong .sys_clock_nanosleep
-        .llong .ppc64_swapcontext
-        .llong .sys_tgkill              /* 250 */
-        .llong .sys_utimes
-        .llong .sys_statfs64
-        .llong .sys_fstatfs64
-        .llong .sys_ni_syscall          /* 32bit only fadvise64_64 */
-        .llong .ppc_rtas                /* 255 */
-        .llong .sys_ni_syscall          /* 256 reserved for sys_debug_setcontext */
-        .llong .sys_ni_syscall          /* 257 reserved for vserver */
-        .llong .sys_ni_syscall          /* 258 reserved for new sys_remap_file_pages */
-        .llong .sys_mbind
-        .llong .sys_get_mempolicy       /* 260 */
-        .llong .sys_set_mempolicy
-        .llong .sys_mq_open
-        .llong .sys_mq_unlink
-        .llong .sys_mq_timedsend
-        .llong .sys_mq_timedreceive     /* 265 */
-        .llong .sys_mq_notify
-        .llong .sys_mq_getsetattr
-        .llong .sys_kexec_load
-        .llong .sys_add_key
-        .llong .sys_request_key         /* 270 */
-        .llong .sys_keyctl
-        .llong .sys_waitid
-        .llong .sys_ioprio_set
-        .llong .sys_ioprio_get
-        .llong .sys_inotify_init        /* 275 */
-        .llong .sys_inotify_add_watch
-        .llong .sys_inotify_rm_watch
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index ff4be1da69d5..3d2106b022a1 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -31,8 +31,7 @@
 #include <asm/irq.h>
 #include <asm/machdep.h>
 #include <asm/udbg.h>
-
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -727,16 +726,17 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
  * above routine
  */
 pgprot_t pci_phys_mem_access_prot(struct file *file,
-                                  unsigned long offset,
+                                  unsigned long pfn,
                                   unsigned long size,
                                   pgprot_t protection)
 {
         struct pci_dev *pdev = NULL;
         struct resource *found = NULL;
         unsigned long prot = pgprot_val(protection);
+        unsigned long offset = pfn << PAGE_SHIFT;
         int i;
 
-        if (page_is_ram(offset >> PAGE_SHIFT))
+        if (page_is_ram(pfn))
                 return __pgprot(prot);
 
         prot |= _PAGE_NO_CACHE | _PAGE_GUARDED;
@@ -881,9 +881,9 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node,
 }
 
 void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
-                                            struct device_node *dev)
+                                            struct device_node *dev, int prim)
 {
-        unsigned int *ranges;
+        unsigned int *ranges, pci_space;
         unsigned long size;
         int rlen = 0;
         int memno = 0;
@@ -906,16 +906,39 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
         ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
         while ((rlen -= np * sizeof(unsigned int)) >= 0) {
                 res = NULL;
-                pci_addr = (unsigned long)ranges[1] << 32 | ranges[2];
+                pci_space = ranges[0];
+                pci_addr = ((unsigned long)ranges[1] << 32) | ranges[2];
 
                 cpu_phys_addr = ranges[3];
-                if (na == 2)
-                        cpu_phys_addr = cpu_phys_addr << 32 | ranges[4];
+                if (na >= 2)
+                        cpu_phys_addr = (cpu_phys_addr << 32) | ranges[4];
 
-                size = (unsigned long)ranges[na+3] << 32 | ranges[na+4];
+                size = ((unsigned long)ranges[na+3] << 32) | ranges[na+4];
+                ranges += np;
                 if (size == 0)
                         continue;
-                switch ((ranges[0] >> 24) & 0x3) {
+
+                /* Now consume following elements while they are contiguous */
+                while (rlen >= np * sizeof(unsigned int)) {
+                        unsigned long addr, phys;
+
+                        if (ranges[0] != pci_space)
+                                break;
+                        addr = ((unsigned long)ranges[1] << 32) | ranges[2];
+                        phys = ranges[3];
+                        if (na >= 2)
+                                phys = (phys << 32) | ranges[4];
+                        if (addr != pci_addr + size ||
+                            phys != cpu_phys_addr + size)
+                                break;
+
+                        size += ((unsigned long)ranges[na+3] << 32)
+                                | ranges[na+4];
+                        ranges += np;
+                        rlen -= np * sizeof(unsigned int);
+                }
+
+                switch ((pci_space >> 24) & 0x3) {
                 case 1:         /* I/O space */
                         hose->io_base_phys = cpu_phys_addr;
                         hose->pci_io_size = size;
@@ -949,7 +972,6 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
                         res->sibling = NULL;
                         res->child = NULL;
                 }
-                ranges += np;
         }
 }
 
diff --git a/arch/ppc64/kernel/pci_direct_iommu.c b/arch/ppc64/kernel/pci_direct_iommu.c
index 54055c81017a..e1a32f802c0b 100644
--- a/arch/ppc64/kernel/pci_direct_iommu.c
+++ b/arch/ppc64/kernel/pci_direct_iommu.c
@@ -27,8 +27,7 @@
 #include <asm/machdep.h>
 #include <asm/pmac_feature.h>
 #include <asm/abs_addr.h>
-
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 static void *pci_direct_alloc_coherent(struct device *hwdev, size_t size,
                                    dma_addr_t *dma_handle, gfp_t flag)
diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/ppc64/kernel/pci_dn.c
index a86389d07d57..493bbe43f5b4 100644
--- a/arch/ppc64/kernel/pci_dn.c
+++ b/arch/ppc64/kernel/pci_dn.c
@@ -30,8 +30,7 @@
 #include <asm/prom.h>
 #include <asm/pci-bridge.h>
 #include <asm/pSeries_reconfig.h>
-
-#include "pci.h"
+#include <asm/ppc-pci.h>
 
 /*
  * Traverse_func that inits the PCI fields of the device node.
diff --git a/arch/ppc64/kernel/pci_iommu.c b/arch/ppc64/kernel/pci_iommu.c
index d9e33b7d4203..bdf15dbbf4f0 100644
--- a/arch/ppc64/kernel/pci_iommu.c
+++ b/arch/ppc64/kernel/pci_iommu.c
@@ -1,8 +1,8 @@
 /*
  * arch/ppc64/kernel/pci_iommu.c
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
- * 
- * Rewrite, cleanup, new allocation schemes: 
+ *
+ * Rewrite, cleanup, new allocation schemes:
  * Copyright (C) 2004 Olof Johansson, IBM Corporation
  *
  * Dynamic DMA mapping support, platform-independent parts.
@@ -11,19 +11,18 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 
-#include <linux/config.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/slab.h>
@@ -37,11 +36,7 @@
 #include <asm/iommu.h>
 #include <asm/pci-bridge.h>
 #include <asm/machdep.h>
-#include "pci.h"
-
-#ifdef CONFIG_PPC_ISERIES
-#include <asm/iSeries/iSeries_pci.h>
-#endif /* CONFIG_PPC_ISERIES */
+#include <asm/ppc-pci.h>
 
 /*
  * We can use ->sysdata directly and avoid the extra work in
@@ -61,13 +56,7 @@ static inline struct iommu_table *devnode_table(struct device *dev)
         } else
                 pdev = to_pci_dev(dev);
 
-#ifdef CONFIG_PPC_ISERIES
-        return ISERIES_DEVNODE(pdev)->iommu_table;
-#endif /* CONFIG_PPC_ISERIES */
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
         return PCI_DN(PCI_GET_DN(pdev))->iommu_table;
-#endif /* CONFIG_PPC_MULTIPLATFORM */
 }
 
 
diff --git a/arch/ppc64/kernel/pmac.h b/arch/ppc64/kernel/pmac.h
deleted file mode 100644
index 40e1c5030f74..000000000000
--- a/arch/ppc64/kernel/pmac.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef __PMAC_H__
-#define __PMAC_H__
-
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-/*
- * Declaration for the various functions exported by the
- * pmac_* files. Mostly for use by pmac_setup
- */
-
-extern void pmac_get_boot_time(struct rtc_time *tm);
-extern void pmac_get_rtc_time(struct rtc_time *tm);
-extern int  pmac_set_rtc_time(struct rtc_time *tm);
-extern void pmac_read_rtc_time(void);
-extern void pmac_calibrate_decr(void);
-
-extern void pmac_pcibios_fixup(void);
-extern void pmac_pci_init(void);
-extern void pmac_setup_pci_dma(void);
-extern void pmac_check_ht_link(void);
-
-extern void pmac_setup_smp(void);
-
-extern unsigned long pmac_ide_get_base(int index);
-extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
-        unsigned long data_port, unsigned long ctrl_port, int *irq);
-
-extern void pmac_nvram_init(void);
-
-#endif /* __PMAC_H__ */
diff --git a/arch/ppc64/kernel/pmac_feature.c b/arch/ppc64/kernel/pmac_feature.c
deleted file mode 100644
index eb4e6c3f694d..000000000000
--- a/arch/ppc64/kernel/pmac_feature.c
+++ /dev/null
@@ -1,767 +0,0 @@
-/*
- *  arch/ppc/platforms/pmac_feature.c
- *
- *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
- *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- *  TODO:
- *
- *   - Replace mdelay with some schedule loop if possible
- *   - Shorten some obfuscated delays on some routines (like modem
- *     power)
- *   - Refcount some clocks (see darwin)
- *   - Split split split...
- *
- */
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <asm/sections.h>
-#include <asm/errno.h>
-#include <asm/keylargo.h>
-#include <asm/uninorth.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/dbdma.h>
-#include <asm/pci-bridge.h>
-#include <asm/pmac_low_i2c.h>
-
-#undef DEBUG_FEATURE
-
-#ifdef DEBUG_FEATURE
-#define DBG(fmt...) printk(KERN_DEBUG fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/*
- * We use a single global lock to protect accesses. Each driver has
- * to take care of its own locking
- */
-static DEFINE_SPINLOCK(feature_lock  __pmacdata);
-
-#define LOCK(flags)     spin_lock_irqsave(&feature_lock, flags);
-#define UNLOCK(flags)   spin_unlock_irqrestore(&feature_lock, flags);
-
-
-/*
- * Instance of some macio stuffs
- */
-struct macio_chip macio_chips[MAX_MACIO_CHIPS]  __pmacdata;
-
-struct macio_chip* __pmac macio_find(struct device_node* child, int type)
-{
-        while(child) {
-                int     i;
-
-                for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
-                        if (child == macio_chips[i].of_node &&
-                            (!type || macio_chips[i].type == type))
-                                return &macio_chips[i];
-                child = child->parent;
-        }
-        return NULL;
-}
-EXPORT_SYMBOL_GPL(macio_find);
-
-static const char* macio_names[] __pmacdata =
-{
-        "Unknown",
-        "Grand Central",
-        "OHare",
-        "OHareII",
-        "Heathrow",
-        "Gatwick",
-        "Paddington",
-        "Keylargo",
-        "Pangea",
-        "Intrepid",
-        "K2"
-};
-
-
-
-/*
- * Uninorth reg. access. Note that Uni-N regs are big endian
- */
-
-#define UN_REG(r)       (uninorth_base + ((r) >> 2))
-#define UN_IN(r)        (in_be32(UN_REG(r)))
-#define UN_OUT(r,v)     (out_be32(UN_REG(r), (v)))
-#define UN_BIS(r,v)     (UN_OUT((r), UN_IN(r) | (v)))
-#define UN_BIC(r,v)     (UN_OUT((r), UN_IN(r) & ~(v)))
-
-static struct device_node* uninorth_node __pmacdata;
-static u32* uninorth_base __pmacdata;
-static u32 uninorth_rev __pmacdata;
-static void *u3_ht;
-
-extern struct device_node *k2_skiplist[2];
-
-/*
- * For each motherboard family, we have a table of functions pointers
- * that handle the various features.
- */
-
-typedef long (*feature_call)(struct device_node* node, long param, long value);
-
-struct feature_table_entry {
-        unsigned int    selector;
-        feature_call    function;
-};
-
-struct pmac_mb_def
-{
-        const char*                     model_string;
-        const char*                     model_name;
-        int                             model_id;
-        struct feature_table_entry*     features;
-        unsigned long                   board_flags;
-};
-static struct pmac_mb_def pmac_mb __pmacdata;
-
-/*
- * Here are the chip specific feature functions
- */
-
-
-static long __pmac g5_read_gpio(struct device_node* node, long param, long value)
-{
-        struct macio_chip* macio = &macio_chips[0];
-
-        return MACIO_IN8(param);
-}
-
-
-static long __pmac g5_write_gpio(struct device_node* node, long param, long value)
-{
-        struct macio_chip* macio = &macio_chips[0];
-
-        MACIO_OUT8(param, (u8)(value & 0xff));
-        return 0;
-}
-
-static long __pmac g5_gmac_enable(struct device_node* node, long param, long value)
-{
-        struct macio_chip* macio = &macio_chips[0];
-        unsigned long flags;
-
-        if (node == NULL)
-                return -ENODEV;
-
-        LOCK(flags);
-        if (value) {
-                MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
-                mb();
-                k2_skiplist[0] = NULL;
-        } else {
-                k2_skiplist[0] = node;
-                mb();
-                MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
-        }
-        
-        UNLOCK(flags);
-        mdelay(1);
-
-        return 0;
-}
-
-static long __pmac g5_fw_enable(struct device_node* node, long param, long value)
-{
-        struct macio_chip* macio = &macio_chips[0];
-        unsigned long flags;
-
-        if (node == NULL)
-                return -ENODEV;
-
-        LOCK(flags);
-        if (value) {
-                MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
-                mb();
-                k2_skiplist[1] = NULL;
-        } else {
-                k2_skiplist[1] = node;
-                mb();
-                MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
-        }
-        
-        UNLOCK(flags);
-        mdelay(1);
-
-        return 0;
-}
-
-static long __pmac g5_mpic_enable(struct device_node* node, long param, long value)
-{
-        unsigned long flags;
-
-        if (node->parent == NULL || strcmp(node->parent->name, "u3"))
-                return 0;
-
-        LOCK(flags);
-        UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
-        UNLOCK(flags);
-
-        return 0;
-}
-
-static long __pmac g5_eth_phy_reset(struct device_node* node, long param, long value)
-{
-        struct macio_chip* macio = &macio_chips[0];
-        struct device_node *phy;
-        int need_reset;
-
-        /*
-         * We must not reset the combo PHYs, only the BCM5221 found in
-         * the iMac G5.
-         */
-        phy = of_get_next_child(node, NULL);
-        if (!phy)
-                return -ENODEV;
-        need_reset = device_is_compatible(phy, "B5221");
-        of_node_put(phy);
-        if (!need_reset)
-                return 0;
-
-        /* PHY reset is GPIO 29, not in device-tree unfortunately */
-        MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
-                   KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
-        /* Thankfully, this is now always called at a time when we can
-         * schedule by sungem.
-         */
-        msleep(10);
-        MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
-
-        return 0;
-}
-
-static long __pmac g5_i2s_enable(struct device_node *node, long param, long value)
-{
-        /* Very crude implementation for now */
-        struct macio_chip* macio = &macio_chips[0];
-        unsigned long flags;
-
-        if (value == 0)
-                return 0; /* don't disable yet */
-
-        LOCK(flags);
-        MACIO_BIS(KEYLARGO_FCR3, KL3_CLK45_ENABLE | KL3_CLK49_ENABLE |
-                  KL3_I2S0_CLK18_ENABLE);
-        udelay(10);
-        MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_I2S0_CELL_ENABLE |
-                  K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE);
-        udelay(10);
-        MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_I2S0_RESET);
-        UNLOCK(flags);
-        udelay(10);
-
-        return 0;
-}
-
-
-#ifdef CONFIG_SMP
-static long __pmac g5_reset_cpu(struct device_node* node, long param, long value)
-{
-        unsigned int reset_io = 0;
-        unsigned long flags;
-        struct macio_chip* macio;
-        struct device_node* np;
-
-        macio = &macio_chips[0];
-        if (macio->type != macio_keylargo2)
-                return -ENODEV;
-
-        np = find_path_device("/cpus");
-        if (np == NULL)
-                return -ENODEV;
-        for (np = np->child; np != NULL; np = np->sibling) {
-                u32* num = (u32 *)get_property(np, "reg", NULL);
-                u32* rst = (u32 *)get_property(np, "soft-reset", NULL);
-                if (num == NULL || rst == NULL)
-                        continue;
-                if (param == *num) {
-                        reset_io = *rst;
-                        break;
-                }
-        }
-        if (np == NULL || reset_io == 0)
-                return -ENODEV;
-
-        LOCK(flags);
-        MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
-        (void)MACIO_IN8(reset_io);
-        udelay(1);
-        MACIO_OUT8(reset_io, 0);
-        (void)MACIO_IN8(reset_io);
-        UNLOCK(flags);
-
-        return 0;
-}
-#endif /* CONFIG_SMP */
-
-/*
- * This can be called from pmac_smp so isn't static
- *
- * This takes the second CPU off the bus on dual CPU machines
- * running UP
- */
-void __pmac g5_phy_disable_cpu1(void)
-{
-        UN_OUT(U3_API_PHY_CONFIG_1, 0);
-}
-
-static long __pmac generic_get_mb_info(struct device_node* node, long param, long value)
-{
-        switch(param) {
-                case PMAC_MB_INFO_MODEL:
-                        return pmac_mb.model_id;
-                case PMAC_MB_INFO_FLAGS:
-                        return pmac_mb.board_flags;
-                case PMAC_MB_INFO_NAME:                 
-                        /* hack hack hack... but should work */
-                        *((const char **)value) = pmac_mb.model_name;
-                        return 0;
-        }
-        return -EINVAL;
-}
-
-
-/*
- * Table definitions
- */
-
-/* Used on any machine
- */
-static struct feature_table_entry any_features[]  __pmacdata = {
-        { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
-        { 0, NULL }
-};
-
-/* G5 features
- */
-static struct feature_table_entry g5_features[]  __pmacdata = {
-        { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
-        { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
-        { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
-        { PMAC_FTR_READ_GPIO,           g5_read_gpio },
-        { PMAC_FTR_WRITE_GPIO,          g5_write_gpio },
-        { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
-        { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
-#ifdef CONFIG_SMP
-        { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
-#endif /* CONFIG_SMP */
-        { 0, NULL }
-};
-
-static struct pmac_mb_def pmac_mb_defs[] __pmacdata = {
-        {       "PowerMac7,2",                  "PowerMac G5",
-                PMAC_TYPE_POWERMAC_G5,          g5_features,
-                0,
-        },
-        {       "PowerMac7,3",                  "PowerMac G5",
-                PMAC_TYPE_POWERMAC_G5,          g5_features,
-                0,
-        },
-        {       "PowerMac8,1",                  "iMac G5",
-                PMAC_TYPE_IMAC_G5,              g5_features,
-                0,
-        },
-        {       "PowerMac9,1",                  "PowerMac G5",
-                PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
-                0,
-        },
-        {       "RackMac3,1",                   "XServe G5",
-                PMAC_TYPE_XSERVE_G5,            g5_features,
-                0,
-        },
-};
-
-/*
- * The toplevel feature_call callback
- */
-long __pmac pmac_do_feature_call(unsigned int selector, ...)
-{
-        struct device_node* node;
-        long param, value;
-        int i;
-        feature_call func = NULL;
-        va_list args;
-
-        if (pmac_mb.features)
-                for (i=0; pmac_mb.features[i].function; i++)
-                        if (pmac_mb.features[i].selector == selector) {
-                                func = pmac_mb.features[i].function;
-                                break;
-                        }
-        if (!func)
-                for (i=0; any_features[i].function; i++)
-                        if (any_features[i].selector == selector) {
-                                func = any_features[i].function;
-                                break;
-                        }
-        if (!func)
-                return -ENODEV;
-
-        va_start(args, selector);
-        node = (struct device_node*)va_arg(args, void*);
-        param = va_arg(args, long);
-        value = va_arg(args, long);
-        va_end(args);
-
-        return func(node, param, value);
-}
-
-static int __init probe_motherboard(void)
-{
-        int i;
-        struct macio_chip* macio = &macio_chips[0];
-        const char* model = NULL;
-        struct device_node *dt;
-
-        /* Lookup known motherboard type in device-tree. First try an
-         * exact match on the "model" property, then try a "compatible"
-         * match is none is found.
-         */
-        dt = find_devices("device-tree");
-        if (dt != NULL)
-                model = (const char *) get_property(dt, "model", NULL);
-        for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
-            if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
-                pmac_mb = pmac_mb_defs[i];
-                goto found;
-            }
-        }
-        for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
-            if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
-                pmac_mb = pmac_mb_defs[i];
-                goto found;
-            }
-        }
-
-        /* Fallback to selection depending on mac-io chip type */
-        switch(macio->type) {
-        case macio_keylargo2:
-                pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
-                pmac_mb.model_name = "Unknown K2-based";
-                pmac_mb.features = g5_features;
-                
-        default:
-                return -ENODEV;
-        }
-found:
-        /* Check for "mobile" machine */
-        if (model && (strncmp(model, "PowerBook", 9) == 0
-                   || strncmp(model, "iBook", 5) == 0))
-                pmac_mb.board_flags |= PMAC_MB_MOBILE;
-
-
-        printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
-        return 0;
-}
-
-/* Initialize the Core99 UniNorth host bridge and memory controller
- */
-static void __init probe_uninorth(void)
-{
-        uninorth_node = of_find_node_by_name(NULL, "u3");
-        if (uninorth_node && uninorth_node->n_addrs > 0) {
-                /* Small hack until I figure out if parsing in prom.c is correct. I should
-                 * get rid of those pre-parsed junk anyway
-                 */
-                unsigned long address = uninorth_node->addrs[0].address;
-                uninorth_base = ioremap(address, 0x40000);
-                uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
-                u3_ht = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
-        } else
-                uninorth_node = NULL;
-
-        if (!uninorth_node)
-                return;
-
-        printk(KERN_INFO "Found U3 memory controller & host bridge, revision: %d\n",
-               uninorth_rev);
-        printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
-
-}
-
-static void __init probe_one_macio(const char* name, const char* compat, int type)
-{
-        struct device_node*     node;
-        int                     i;
-        volatile u32*           base;
-        u32*                    revp;
-
-        node = find_devices(name);
-        if (!node || !node->n_addrs)
-                return;
-        if (compat)
-                do {
-                        if (device_is_compatible(node, compat))
-                                break;
-                        node = node->next;
-                } while (node);
-        if (!node)
-                return;
-        for(i=0; i<MAX_MACIO_CHIPS; i++) {
-                if (!macio_chips[i].of_node)
-                        break;
-                if (macio_chips[i].of_node == node)
-                        return;
-        }
-        if (i >= MAX_MACIO_CHIPS) {
-                printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
-                printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
-                return;
-        }
-        base = (volatile u32*)ioremap(node->addrs[0].address, node->addrs[0].size);
-        if (!base) {
-                printk(KERN_ERR "pmac_feature: Can't map mac-io chip !\n");
-                return;
-        }
-        if (type == macio_keylargo) {
-                u32* did = (u32 *)get_property(node, "device-id", NULL);
-                if (*did == 0x00000025)
-                        type = macio_pangea;
-                if (*did == 0x0000003e)
-                        type = macio_intrepid;
-        }
-        macio_chips[i].of_node  = node;
-        macio_chips[i].type     = type;
-        macio_chips[i].base     = base;
-        macio_chips[i].flags    = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
-        macio_chips[i].name     = macio_names[type];
-        revp = (u32 *)get_property(node, "revision-id", NULL);
-        if (revp)
-                macio_chips[i].rev = *revp;
-        printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
-                macio_names[type], macio_chips[i].rev, macio_chips[i].base);
-}
-
-static int __init
-probe_macios(void)
-{
-        probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
-
-        macio_chips[0].lbus.index = 0;
-        macio_chips[1].lbus.index = 1;
-
-        return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
-}
-
-static void __init
-set_initial_features(void)
-{
-        struct device_node *np;
-
-        if (macio_chips[0].type == macio_keylargo2) {
-#ifndef CONFIG_SMP
-                /* On SMP machines running UP, we have the second CPU eating
-                 * bus cycles. We need to take it off the bus. This is done
-                 * from pmac_smp for SMP kernels running on one CPU
-                 */
-                np = of_find_node_by_type(NULL, "cpu");
-                if (np != NULL)
-                        np = of_find_node_by_type(np, "cpu");
-                if (np != NULL) {
-                        g5_phy_disable_cpu1();
-                        of_node_put(np);
-                }
-#endif /* CONFIG_SMP */
-                /* Enable GMAC for now for PCI probing. It will be disabled
-                 * later on after PCI probe
-                 */
-                np = of_find_node_by_name(NULL, "ethernet");
-                while(np) {
-                        if (device_is_compatible(np, "K2-GMAC"))
-                                g5_gmac_enable(np, 0, 1);
-                        np = of_find_node_by_name(np, "ethernet");
-                }
-
-                /* Enable FW before PCI probe. Will be disabled later on
-                 * Note: We should have a batter way to check that we are
-                 * dealing with uninorth internal cell and not a PCI cell
-                 * on the external PCI. The code below works though.
-                 */
-                np = of_find_node_by_name(NULL, "firewire");
-                while(np) {
-                        if (device_is_compatible(np, "pci106b,5811")) {
-                                macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
-                                g5_fw_enable(np, 0, 1);
-                        }
-                        np = of_find_node_by_name(np, "firewire");
-                }
-        }
-}
-
-void __init
-pmac_feature_init(void)
-{
-        /* Detect the UniNorth memory controller */
-        probe_uninorth();
-
-        /* Probe mac-io controllers */
-        if (probe_macios()) {
-                printk(KERN_WARNING "No mac-io chip found\n");
-                return;
-        }
-
-        /* Setup low-level i2c stuffs */
-        pmac_init_low_i2c();
-
-        /* Probe machine type */
-        if (probe_motherboard())
-                printk(KERN_WARNING "Unknown PowerMac !\n");
-
-        /* Set some initial features (turn off some chips that will
-         * be later turned on)
-         */
-        set_initial_features();
-}
-
-int __init pmac_feature_late_init(void)
-{
-#if 0
-        struct device_node* np;
-
-        /* Request some resources late */
-        if (uninorth_node)
-                request_OF_resource(uninorth_node, 0, NULL);
-        np = find_devices("hammerhead");
-        if (np)
-                request_OF_resource(np, 0, NULL);
-        np = find_devices("interrupt-controller");
-        if (np)
-                request_OF_resource(np, 0, NULL);
-#endif
-        return 0;
-}
-
-device_initcall(pmac_feature_late_init);
-
-#if 0
-static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
-{
-        int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
-        int     bits[8] = { 8,16,0,32,2,4,0,0 };
-        int     freq = (frq >> 8) & 0xf;
-
-        if (freqs[freq] == 0)
-                printk("%s: Unknown HT link frequency %x\n", name, freq);
-        else
-                printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
-                       name, freqs[freq],
-                       bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
-}
-#endif
-
-void __init pmac_check_ht_link(void)
-{
-#if 0 /* Disabled for now */
-        u32     ufreq, freq, ucfg, cfg;
-        struct device_node *pcix_node;
-        struct pci_dn *pdn;
-        u8      px_bus, px_devfn;
-        struct pci_controller *px_hose;
-
-        (void)in_be32(u3_ht + U3_HT_LINK_COMMAND);
-        ucfg = cfg = in_be32(u3_ht + U3_HT_LINK_CONFIG);
-        ufreq = freq = in_be32(u3_ht + U3_HT_LINK_FREQ);
-        dump_HT_speeds("U3 HyperTransport", cfg, freq);
-
-        pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
-        if (pcix_node == NULL) {
-                printk("No PCI-X bridge found\n");
-                return;
-        }
-        pdn = pcix_node->data;
-        px_hose = pdn->phb;
-        px_bus = pdn->busno;
-        px_devfn = pdn->devfn;
-        
-        early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
-        early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
-        dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
-        early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
-        early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
-        dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
-#endif
-}
-
-/*
- * Early video resume hook
- */
-
-static void (*pmac_early_vresume_proc)(void *data) __pmacdata;
-static void *pmac_early_vresume_data __pmacdata;
-
-void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
-{
-        if (_machine != _MACH_Pmac)
-                return;
-        preempt_disable();
-        pmac_early_vresume_proc = proc;
-        pmac_early_vresume_data = data;
-        preempt_enable();
-}
-EXPORT_SYMBOL(pmac_set_early_video_resume);
-
-
-/*
- * AGP related suspend/resume code
- */
-
-static struct pci_dev *pmac_agp_bridge __pmacdata;
-static int (*pmac_agp_suspend)(struct pci_dev *bridge) __pmacdata;
-static int (*pmac_agp_resume)(struct pci_dev *bridge) __pmacdata;
-
-void __pmac pmac_register_agp_pm(struct pci_dev *bridge,
-                                 int (*suspend)(struct pci_dev *bridge),
-                                 int (*resume)(struct pci_dev *bridge))
-{
-        if (suspend || resume) {
-                pmac_agp_bridge = bridge;
-                pmac_agp_suspend = suspend;
-                pmac_agp_resume = resume;
-                return;
-        }
-        if (bridge != pmac_agp_bridge)
-                return;
-        pmac_agp_suspend = pmac_agp_resume = NULL;
-        return;
-}
-EXPORT_SYMBOL(pmac_register_agp_pm);
-
-void __pmac pmac_suspend_agp_for_card(struct pci_dev *dev)
-{
-        if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
-                return;
-        if (pmac_agp_bridge->bus != dev->bus)
-                return;
-        pmac_agp_suspend(pmac_agp_bridge);
-}
-EXPORT_SYMBOL(pmac_suspend_agp_for_card);
-
-void __pmac pmac_resume_agp_for_card(struct pci_dev *dev)
-{
-        if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
-                return;
-        if (pmac_agp_bridge->bus != dev->bus)
-                return;
-        pmac_agp_resume(pmac_agp_bridge);
-}
-EXPORT_SYMBOL(pmac_resume_agp_for_card);
diff --git a/arch/ppc64/kernel/pmac_pci.c b/arch/ppc64/kernel/pmac_pci.c
deleted file mode 100644
index dc40a0cad0b4..000000000000
--- a/arch/ppc64/kernel/pmac_pci.c
+++ /dev/null
@@ -1,793 +0,0 @@
-/*
- * Support for PCI bridges found on Power Macintoshes.
- * At present the "bandit" and "chaos" bridges are supported.
- * Fortunately you access configuration space in the same
- * way with either bridge.
- *
- * Copyright (C) 2003 Benjamin Herrenschmuidt (benh@kernel.crashing.org)
- * Copyright (C) 1997 Paul Mackerras (paulus@samba.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/iommu.h>
-
-#include "pci.h"
-#include "pmac.h"
-
-#define DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* XXX Could be per-controller, but I don't think we risk anything by
- * assuming we won't have both UniNorth and Bandit */
-static int has_uninorth;
-static struct pci_controller *u3_agp;
-struct device_node *k2_skiplist[2];
-
-static int __init fixup_one_level_bus_range(struct device_node *node, int higher)
-{
-        for (; node != 0;node = node->sibling) {
-                int * bus_range;
-                unsigned int *class_code;
-                int len;
-
-                /* For PCI<->PCI bridges or CardBus bridges, we go down */
-                class_code = (unsigned int *) get_property(node, "class-code", NULL);
-                if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
-                        (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
-                        continue;
-                bus_range = (int *) get_property(node, "bus-range", &len);
-                if (bus_range != NULL && len > 2 * sizeof(int)) {
-                        if (bus_range[1] > higher)
-                                higher = bus_range[1];
-                }
-                higher = fixup_one_level_bus_range(node->child, higher);
-        }
-        return higher;
-}
-
-/* This routine fixes the "bus-range" property of all bridges in the
- * system since they tend to have their "last" member wrong on macs
- *
- * Note that the bus numbers manipulated here are OF bus numbers, they
- * are not Linux bus numbers.
- */
-static void __init fixup_bus_range(struct device_node *bridge)
-{
-        int * bus_range;
-        int len;
-
-        /* Lookup the "bus-range" property for the hose */
-        bus_range = (int *) get_property(bridge, "bus-range", &len);
-        if (bus_range == NULL || len < 2 * sizeof(int)) {
-                printk(KERN_WARNING "Can't get bus-range for %s\n",
-                               bridge->full_name);
-                return;
-        }
-        bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]);
-}
-
-/*
- * Apple MacRISC (U3, UniNorth, Bandit, Chaos) PCI controllers.
- *
- * The "Bandit" version is present in all early PCI PowerMacs,
- * and up to the first ones using Grackle. Some machines may
- * have 2 bandit controllers (2 PCI busses).
- *
- * "Chaos" is used in some "Bandit"-type machines as a bridge
- * for the separate display bus. It is accessed the same
- * way as bandit, but cannot be probed for devices. It therefore
- * has its own config access functions.
- *
- * The "UniNorth" version is present in all Core99 machines
- * (iBook, G4, new IMacs, and all the recent Apple machines).
- * It contains 3 controllers in one ASIC.
- *
- * The U3 is the bridge used on G5 machines. It contains on
- * AGP bus which is dealt with the old UniNorth access routines
- * and an HyperTransport bus which uses its own set of access
- * functions.
- */
-
-#define MACRISC_CFA0(devfn, off)        \
-        ((1 << (unsigned long)PCI_SLOT(dev_fn)) \
-        | (((unsigned long)PCI_FUNC(dev_fn)) << 8) \
-        | (((unsigned long)(off)) & 0xFCUL))
-
-#define MACRISC_CFA1(bus, devfn, off)   \
-        ((((unsigned long)(bus)) << 16) \
-        |(((unsigned long)(devfn)) << 8) \
-        |(((unsigned long)(off)) & 0xFCUL) \
-        |1UL)
-
-static unsigned long __pmac macrisc_cfg_access(struct pci_controller* hose,
-                                               u8 bus, u8 dev_fn, u8 offset)
-{
-        unsigned int caddr;
-
-        if (bus == hose->first_busno) {
-                if (dev_fn < (11 << 3))
-                        return 0;
-                caddr = MACRISC_CFA0(dev_fn, offset);
-        } else
-                caddr = MACRISC_CFA1(bus, dev_fn, offset);
-
-        /* Uninorth will return garbage if we don't read back the value ! */
-        do {
-                out_le32(hose->cfg_addr, caddr);
-        } while (in_le32(hose->cfg_addr) != caddr);
-
-        offset &= has_uninorth ? 0x07 : 0x03;
-        return ((unsigned long)hose->cfg_data) + offset;
-}
-
-static int __pmac macrisc_read_config(struct pci_bus *bus, unsigned int devfn,
-                                      int offset, int len, u32 *val)
-{
-        struct pci_controller *hose;
-        unsigned long addr;
-
-        hose = pci_bus_to_host(bus);
-        if (hose == NULL)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-
-        addr = macrisc_cfg_access(hose, bus->number, devfn, offset);
-        if (!addr)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-        /*
-         * Note: the caller has already checked that offset is
-         * suitably aligned and that len is 1, 2 or 4.
-         */
-        switch (len) {
-        case 1:
-                *val = in_8((u8 *)addr);
-                break;
-        case 2:
-                *val = in_le16((u16 *)addr);
-                break;
-        default:
-                *val = in_le32((u32 *)addr);
-                break;
-        }
-        return PCIBIOS_SUCCESSFUL;
-}
-
-static int __pmac macrisc_write_config(struct pci_bus *bus, unsigned int devfn,
-                                       int offset, int len, u32 val)
-{
-        struct pci_controller *hose;
-        unsigned long addr;
-
-        hose = pci_bus_to_host(bus);
-        if (hose == NULL)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-
-        addr = macrisc_cfg_access(hose, bus->number, devfn, offset);
-        if (!addr)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-        /*
-         * Note: the caller has already checked that offset is
-         * suitably aligned and that len is 1, 2 or 4.
-         */
-        switch (len) {
-        case 1:
-                out_8((u8 *)addr, val);
-                (void) in_8((u8 *)addr);
-                break;
-        case 2:
-                out_le16((u16 *)addr, val);
-                (void) in_le16((u16 *)addr);
-                break;
-        default:
-                out_le32((u32 *)addr, val);
-                (void) in_le32((u32 *)addr);
-                break;
-        }
-        return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops macrisc_pci_ops =
-{
-        macrisc_read_config,
-        macrisc_write_config
-};
-
-/*
- * These versions of U3 HyperTransport config space access ops do not
- * implement self-view of the HT host yet
- */
-
-/*
- * This function deals with some "special cases" devices.
- *
- *  0 -> No special case
- *  1 -> Skip the device but act as if the access was successfull
- *       (return 0xff's on reads, eventually, cache config space
- *       accesses in a later version)
- * -1 -> Hide the device (unsuccessful acess)
- */
-static int u3_ht_skip_device(struct pci_controller *hose,
-                             struct pci_bus *bus, unsigned int devfn)
-{
-        struct device_node *busdn, *dn;
-        int i;
-
-        /* We only allow config cycles to devices that are in OF device-tree
-         * as we are apparently having some weird things going on with some
-         * revs of K2 on recent G5s
-         */
-        if (bus->self)
-                busdn = pci_device_to_OF_node(bus->self);
-        else
-                busdn = hose->arch_data;
-        for (dn = busdn->child; dn; dn = dn->sibling)
-                if (dn->data && PCI_DN(dn)->devfn == devfn)
-                        break;
-        if (dn == NULL)
-                return -1;
-
-        /*
-         * When a device in K2 is powered down, we die on config
-         * cycle accesses. Fix that here.
-         */
-        for (i=0; i<2; i++)
-                if (k2_skiplist[i] == dn)
-                        return 1;
-
-        return 0;
-}
-
-#define U3_HT_CFA0(devfn, off)          \
-                ((((unsigned long)devfn) << 8) | offset)
-#define U3_HT_CFA1(bus, devfn, off)     \
-                (U3_HT_CFA0(devfn, off) \
-                + (((unsigned long)bus) << 16) \
-                + 0x01000000UL)
-
-static unsigned long __pmac u3_ht_cfg_access(struct pci_controller* hose,
-                                             u8 bus, u8 devfn, u8 offset)
-{
-        if (bus == hose->first_busno) {
-                /* For now, we don't self probe U3 HT bridge */
-                if (PCI_SLOT(devfn) == 0)
-                        return 0;
-                return ((unsigned long)hose->cfg_data) + U3_HT_CFA0(devfn, offset);
-        } else
-                return ((unsigned long)hose->cfg_data) + U3_HT_CFA1(bus, devfn, offset);
-}
-
-static int __pmac u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
-                                    int offset, int len, u32 *val)
-{
-        struct pci_controller *hose;
-        unsigned long addr;
-
-
-        hose = pci_bus_to_host(bus);      
-        if (hose == NULL)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-
-        addr = u3_ht_cfg_access(hose, bus->number, devfn, offset);
-        if (!addr)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-
-        switch (u3_ht_skip_device(hose, bus, devfn)) {
-        case 0:
-                break;
-        case 1:
-                switch (len) {
-                case 1:
-                        *val = 0xff; break;
-                case 2:
-                        *val = 0xffff; break;
-                default:
-                        *val = 0xfffffffful; break;
-                }
-                return PCIBIOS_SUCCESSFUL;
-        default:
-                return PCIBIOS_DEVICE_NOT_FOUND;
-        }
-
-        /*
-         * Note: the caller has already checked that offset is
-         * suitably aligned and that len is 1, 2 or 4.
-         */
-        switch (len) {
-        case 1:
-                *val = in_8((u8 *)addr);
-                break;
-        case 2:
-                *val = in_le16((u16 *)addr);
-                break;
-        default:
-                *val = in_le32((u32 *)addr);
-                break;
-        }
-        return PCIBIOS_SUCCESSFUL;
-}
-
-static int __pmac u3_ht_write_config(struct pci_bus *bus, unsigned int devfn,
-                                     int offset, int len, u32 val)
-{
-        struct pci_controller *hose;
-        unsigned long addr;
-
-        hose = pci_bus_to_host(bus);
-        if (hose == NULL)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-
-        addr = u3_ht_cfg_access(hose, bus->number, devfn, offset);
-        if (!addr)
-                return PCIBIOS_DEVICE_NOT_FOUND;
-
-        switch (u3_ht_skip_device(hose, bus, devfn)) {
-        case 0:
-                break;
-        case 1:
-                return PCIBIOS_SUCCESSFUL;
-        default:
-                return PCIBIOS_DEVICE_NOT_FOUND;
-        }
-
-        /*
-         * Note: the caller has already checked that offset is
-         * suitably aligned and that len is 1, 2 or 4.
-         */
-        switch (len) {
-        case 1:
-                out_8((u8 *)addr, val);
-                (void) in_8((u8 *)addr);
-                break;
-        case 2:
-                out_le16((u16 *)addr, val);
-                (void) in_le16((u16 *)addr);
-                break;
-        default:
-                out_le32((u32 *)addr, val);
-                (void) in_le32((u32 *)addr);
-                break;
-        }
-        return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops u3_ht_pci_ops =
-{
-        u3_ht_read_config,
-        u3_ht_write_config
-};
-
-static void __init setup_u3_agp(struct pci_controller* hose)
-{
-        /* On G5, we move AGP up to high bus number so we don't need
-         * to reassign bus numbers for HT. If we ever have P2P bridges
-         * on AGP, we'll have to move pci_assign_all_busses to the
-         * pci_controller structure so we enable it for AGP and not for
-         * HT childs.
-         * We hard code the address because of the different size of
-         * the reg address cell, we shall fix that by killing struct
-         * reg_property and using some accessor functions instead
-         */
-        hose->first_busno = 0xf0;
-        hose->last_busno = 0xff;
-        has_uninorth = 1;
-        hose->ops = &macrisc_pci_ops;
-        hose->cfg_addr = ioremap(0xf0000000 + 0x800000, 0x1000);
-        hose->cfg_data = ioremap(0xf0000000 + 0xc00000, 0x1000);
-
-        u3_agp = hose;
-}
-
-static void __init setup_u3_ht(struct pci_controller* hose)
-{
-        struct device_node *np = (struct device_node *)hose->arch_data;
-        int i, cur;
-
-        hose->ops = &u3_ht_pci_ops;
-
-        /* We hard code the address because of the different size of
-         * the reg address cell, we shall fix that by killing struct
-         * reg_property and using some accessor functions instead
-         */
-        hose->cfg_data = (volatile unsigned char *)ioremap(0xf2000000, 0x02000000);
-
-        /*
-         * /ht node doesn't expose a "ranges" property, so we "remove" regions that
-         * have been allocated to AGP. So far, this version of the code doesn't assign
-         * any of the 0xfxxxxxxx "fine" memory regions to /ht.
-         * We need to fix that sooner or later by either parsing all child "ranges"
-         * properties or figuring out the U3 address space decoding logic and
-         * then read it's configuration register (if any).
-         */
-        hose->io_base_phys = 0xf4000000;
-        hose->io_base_virt = ioremap(hose->io_base_phys, 0x00400000);
-        isa_io_base = pci_io_base = (unsigned long) hose->io_base_virt;
-        hose->io_resource.name = np->full_name;
-        hose->io_resource.start = 0;
-        hose->io_resource.end = 0x003fffff;
-        hose->io_resource.flags = IORESOURCE_IO;
-        hose->pci_mem_offset = 0;
-        hose->first_busno = 0;
-        hose->last_busno = 0xef;
-        hose->mem_resources[0].name = np->full_name;
-        hose->mem_resources[0].start = 0x80000000;
-        hose->mem_resources[0].end = 0xefffffff;
-        hose->mem_resources[0].flags = IORESOURCE_MEM;
-
-        if (u3_agp == NULL) {
-                DBG("U3 has no AGP, using full resource range\n");
-                return;
-        }
-
-        /* We "remove" the AGP resources from the resources allocated to HT, that
-         * is we create "holes". However, that code does assumptions that so far
-         * happen to be true (cross fingers...), typically that resources in the
-         * AGP node are properly ordered
-         */
-        cur = 0;
-        for (i=0; i<3; i++) {
-                struct resource *res = &u3_agp->mem_resources[i];
-                if (res->flags != IORESOURCE_MEM)
-                        continue;
-                /* We don't care about "fine" resources */
-                if (res->start >= 0xf0000000)
-                        continue;
-                /* Check if it's just a matter of "shrinking" us in one direction */
-                if (hose->mem_resources[cur].start == res->start) {
-                        DBG("U3/HT: shrink start of %d, %08lx -> %08lx\n",
-                            cur, hose->mem_resources[cur].start, res->end + 1);
-                        hose->mem_resources[cur].start = res->end + 1;
-                        continue;
-                }
-                if (hose->mem_resources[cur].end == res->end) {
-                        DBG("U3/HT: shrink end of %d, %08lx -> %08lx\n",
-                            cur, hose->mem_resources[cur].end, res->start - 1);
-                        hose->mem_resources[cur].end = res->start - 1;
-                        continue;
-                }
-                /* No, it's not the case, we need a hole */
-                if (cur == 2) {
-                        /* not enough resources for a hole, we drop part of the range */
-                        printk(KERN_WARNING "Running out of resources for /ht host !\n");
-                        hose->mem_resources[cur].end = res->start - 1;
-                        continue;
-                }               
-                cur++;
-                DBG("U3/HT: hole, %d end at %08lx, %d start at %08lx\n",
-                    cur-1, res->start - 1, cur, res->end + 1);
-                hose->mem_resources[cur].name = np->full_name;
-                hose->mem_resources[cur].flags = IORESOURCE_MEM;
-                hose->mem_resources[cur].start = res->end + 1;
-                hose->mem_resources[cur].end = hose->mem_resources[cur-1].end;
-                hose->mem_resources[cur-1].end = res->start - 1;
-        }
-}
-
-static void __init pmac_process_bridge_OF_ranges(struct pci_controller *hose,
-                           struct device_node *dev, int primary)
-{
-        static unsigned int static_lc_ranges[2024];
-        unsigned int *dt_ranges, *lc_ranges, *ranges, *prev;
-        unsigned int size;
-        int rlen = 0, orig_rlen;
-        int memno = 0;
-        struct resource *res;
-        int np, na = prom_n_addr_cells(dev);
-
-        np = na + 5;
-
-        /* First we try to merge ranges to fix a problem with some pmacs
-         * that can have more than 3 ranges, fortunately using contiguous
-         * addresses -- BenH
-         */
-        dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
-        if (!dt_ranges)
-                return;
-        /*      lc_ranges = alloc_bootmem(rlen);*/
-        lc_ranges = static_lc_ranges;
-        if (!lc_ranges)
-                return; /* what can we do here ? */
-        memcpy(lc_ranges, dt_ranges, rlen);
-        orig_rlen = rlen;
-
-        /* Let's work on a copy of the "ranges" property instead of damaging
-         * the device-tree image in memory
-         */
-        ranges = lc_ranges;
-        prev = NULL;
-        while ((rlen -= np * sizeof(unsigned int)) >= 0) {
-                if (prev) {
-                        if (prev[0] == ranges[0] && prev[1] == ranges[1] &&
-                                (prev[2] + prev[na+4]) == ranges[2] &&
-                                (prev[na+2] + prev[na+4]) == ranges[na+2]) {
-                                prev[na+4] += ranges[na+4];
-                                ranges[0] = 0;
-                                ranges += np;
-                                continue;
-                        }
-                }
-                prev = ranges;
-                ranges += np;
-        }
-
-        /*
-         * The ranges property is laid out as an array of elements,
-         * each of which comprises:
-         *   cells 0 - 2:       a PCI address
-         *   cells 3 or 3+4:    a CPU physical address
-         *                      (size depending on dev->n_addr_cells)
-         *   cells 4+5 or 5+6:  the size of the range
-         */
-        ranges = lc_ranges;
-        rlen = orig_rlen;
-        while (ranges && (rlen -= np * sizeof(unsigned int)) >= 0) {
-                res = NULL;
-                size = ranges[na+4];
-                switch (ranges[0] >> 24) {
-                case 1:         /* I/O space */
-                        if (ranges[2] != 0)
-                                break;
-                        hose->io_base_phys = ranges[na+2];
-                        /* limit I/O space to 16MB */
-                        if (size > 0x01000000)
-                                size = 0x01000000;
-                        hose->io_base_virt = ioremap(ranges[na+2], size);
-                        if (primary)
-                                isa_io_base = (unsigned long) hose->io_base_virt;
-                        res = &hose->io_resource;
-                        res->flags = IORESOURCE_IO;
-                        res->start = ranges[2];
-                        break;
-                case 2:         /* memory space */
-                        memno = 0;
-                        if (ranges[1] == 0 && ranges[2] == 0
-                            && ranges[na+4] <= (16 << 20)) {
-                                /* 1st 16MB, i.e. ISA memory area */
-#if 0
-                                if (primary)
-                                        isa_mem_base = ranges[na+2];
-#endif
-                                memno = 1;
-                        }
-                        while (memno < 3 && hose->mem_resources[memno].flags)
-                                ++memno;
-                        if (memno == 0)
-                                hose->pci_mem_offset = ranges[na+2] - ranges[2];
-                        if (memno < 3) {
-                                res = &hose->mem_resources[memno];
-                                res->flags = IORESOURCE_MEM;
-                                res->start = ranges[na+2];
-                        }
-                        break;
-                }
-                if (res != NULL) {
-                        res->name = dev->full_name;
-                        res->end = res->start + size - 1;
-                        res->parent = NULL;
-                        res->sibling = NULL;
-                        res->child = NULL;
-                }
-                ranges += np;
-        }
-}
-
-/*
- * We assume that if we have a G3 powermac, we have one bridge called
- * "pci" (a MPC106) and no bandit or chaos bridges, and contrariwise,
- * if we have one or more bandit or chaos bridges, we don't have a MPC106.
- */
-static int __init add_bridge(struct device_node *dev)
-{
-        int len;
-        struct pci_controller *hose;
-        char* disp_name;
-        int *bus_range;
-        int primary = 1;
-        struct property *of_prop;
-
-        DBG("Adding PCI host bridge %s\n", dev->full_name);
-
-        bus_range = (int *) get_property(dev, "bus-range", &len);
-        if (bus_range == NULL || len < 2 * sizeof(int)) {
-                printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
-                        dev->full_name);
-        }
-
-        hose = alloc_bootmem(sizeof(struct pci_controller));
-        if (hose == NULL)
-                return -ENOMEM;
-        pci_setup_pci_controller(hose);
-
-        hose->arch_data = dev;
-        hose->first_busno = bus_range ? bus_range[0] : 0;
-        hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
-        of_prop = alloc_bootmem(sizeof(struct property) +
-                                sizeof(hose->global_number));
-        if (of_prop) {
-                memset(of_prop, 0, sizeof(struct property));
-                of_prop->name = "linux,pci-domain";
-                of_prop->length = sizeof(hose->global_number);
-                of_prop->value = (unsigned char *)&of_prop[1];
-                memcpy(of_prop->value, &hose->global_number, sizeof(hose->global_number));
-                prom_add_property(dev, of_prop);
-        }
-
-        disp_name = NULL;
-        if (device_is_compatible(dev, "u3-agp")) {
-                setup_u3_agp(hose);
-                disp_name = "U3-AGP";
-                primary = 0;
-        } else if (device_is_compatible(dev, "u3-ht")) {
-                setup_u3_ht(hose);
-                disp_name = "U3-HT";
-                primary = 1;
-        }
-        printk(KERN_INFO "Found %s PCI host bridge. Firmware bus number: %d->%d\n",
-                disp_name, hose->first_busno, hose->last_busno);
-
-        /* Interpret the "ranges" property */
-        /* This also maps the I/O region and sets isa_io/mem_base */
-        pmac_process_bridge_OF_ranges(hose, dev, primary);
-
-        /* Fixup "bus-range" OF property */
-        fixup_bus_range(dev);
-
-        return 0;
-}
-
-/*
- * We use our own read_irq_line here because PCI_INTERRUPT_PIN is
- * crap on some of Apple ASICs. We unconditionally use the Open Firmware
- * interrupt number as this is always right.
- */
-static int pmac_pci_read_irq_line(struct pci_dev *pci_dev)
-{
-        struct device_node *node;
-
-        node = pci_device_to_OF_node(pci_dev);
-        if (node == NULL)
-                return -1;
-        if (node->n_intrs == 0)
-                return -1;
-        pci_dev->irq = node->intrs[0].line;
-        pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, pci_dev->irq);
-
-        return 0;
-}
-
-void __init pmac_pcibios_fixup(void)
-{
-        struct pci_dev *dev = NULL;
-
-        for_each_pci_dev(dev)
-                pmac_pci_read_irq_line(dev);
-}
-
-static void __init pmac_fixup_phb_resources(void)
-{
-        struct pci_controller *hose, *tmp;
-        
-        list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
-                unsigned long offset = (unsigned long)hose->io_base_virt - pci_io_base;
-                hose->io_resource.start += offset;
-                hose->io_resource.end += offset;
-                printk(KERN_INFO "PCI Host %d, io start: %lx; io end: %lx\n",
-                       hose->global_number,
-                       hose->io_resource.start, hose->io_resource.end);
-        }
-}
-
-void __init pmac_pci_init(void)
-{
-        struct device_node *np, *root;
-        struct device_node *ht = NULL;
-
-        /* Probe root PCI hosts, that is on U3 the AGP host and the
-         * HyperTransport host. That one is actually "kept" around
-         * and actually added last as it's resource management relies
-         * on the AGP resources to have been setup first
-         */
-        root = of_find_node_by_path("/");
-        if (root == NULL) {
-                printk(KERN_CRIT "pmac_find_bridges: can't find root of device tree\n");
-                return;
-        }
-        for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
-                if (np->name == NULL)
-                        continue;
-                if (strcmp(np->name, "pci") == 0) {
-                        if (add_bridge(np) == 0)
-                                of_node_get(np);
-                }
-                if (strcmp(np->name, "ht") == 0) {
-                        of_node_get(np);
-                        ht = np;
-                }
-        }
-        of_node_put(root);
-
-        /* Now setup the HyperTransport host if we found any
-         */
-        if (ht && add_bridge(ht) != 0)
-                of_node_put(ht);
-
-        /* Fixup the IO resources on our host bridges as the common code
-         * does it only for childs of the host bridges
-         */
-        pmac_fixup_phb_resources();
-
-        /* Setup the linkage between OF nodes and PHBs */ 
-        pci_devs_phb_init();
-
-        /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We
-         * assume there is no P2P bridge on the AGP bus, which should be a
-         * safe assumptions hopefully.
-         */
-        if (u3_agp) {
-                struct device_node *np = u3_agp->arch_data;
-                PCI_DN(np)->busno = 0xf0;
-                for (np = np->child; np; np = np->sibling)
-                        PCI_DN(np)->busno = 0xf0;
-        }
-
-        pmac_check_ht_link();
-
-        /* Tell pci.c to not use the common resource allocation mecanism */
-        pci_probe_only = 1;
-        
-        /* Allow all IO */
-        io_page_mask = -1;
-}
-
-/*
- * Disable second function on K2-SATA, it's broken
- * and disable IO BARs on first one
- */
-static void fixup_k2_sata(struct pci_dev* dev)
-{
-        int i;
-        u16 cmd;
-
-        if (PCI_FUNC(dev->devfn) > 0) {
-                pci_read_config_word(dev, PCI_COMMAND, &cmd);
-                cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
-                pci_write_config_word(dev, PCI_COMMAND, cmd);
-                for (i = 0; i < 6; i++) {
-                        dev->resource[i].start = dev->resource[i].end = 0;
-                        dev->resource[i].flags = 0;
-                        pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + 4 * i, 0);
-                }
-        } else {
-                pci_read_config_word(dev, PCI_COMMAND, &cmd);
-                cmd &= ~PCI_COMMAND_IO;
-                pci_write_config_word(dev, PCI_COMMAND, cmd);
-                for (i = 0; i < 5; i++) {
-                        dev->resource[i].start = dev->resource[i].end = 0;
-                        dev->resource[i].flags = 0;
-                        pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + 4 * i, 0);
-                }
-        }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, 0x0240, fixup_k2_sata);
-
diff --git a/arch/ppc64/kernel/pmac_setup.c b/arch/ppc64/kernel/pmac_setup.c
deleted file mode 100644
index fa8121d53b89..000000000000
--- a/arch/ppc64/kernel/pmac_setup.c
+++ /dev/null
@@ -1,525 +0,0 @@
-/*
- *  arch/ppc/platforms/setup.c
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Adapted for Power Macintosh by Paul Mackerras
- *    Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
- *
- *  Derived from "arch/alpha/kernel/setup.c"
- *    Copyright (C) 1995 Linus Torvalds
- *
- *  Maintained by Benjamin Herrenschmidt (benh@kernel.crashing.org)
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-
-/*
- * bootup setup stuff..
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/major.h>
-#include <linux/initrd.h>
-#include <linux/vt_kern.h>
-#include <linux/console.h>
-#include <linux/ide.h>
-#include <linux/pci.h>
-#include <linux/adb.h>
-#include <linux/cuda.h>
-#include <linux/pmu.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/bitops.h>
-
-#include <asm/processor.h>
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/machdep.h>
-#include <asm/dma.h>
-#include <asm/btext.h>
-#include <asm/cputable.h>
-#include <asm/pmac_feature.h>
-#include <asm/time.h>
-#include <asm/of_device.h>
-#include <asm/lmb.h>
-#include <asm/smu.h>
-#include <asm/pmc.h>
-
-#include "pmac.h"
-#include "mpic.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-static int current_root_goodness = -1;
-#define DEFAULT_ROOT_DEVICE Root_SDA1   /* sda1 - slightly silly choice */
-
-extern  int powersave_nap;
-int sccdbg;
-
-sys_ctrler_t sys_ctrler;
-EXPORT_SYMBOL(sys_ctrler);
-
-#ifdef CONFIG_PMAC_SMU
-unsigned long smu_cmdbuf_abs;
-EXPORT_SYMBOL(smu_cmdbuf_abs);
-#endif
-
-extern void udbg_init_scc(struct device_node *np);
-
-static void __pmac pmac_show_cpuinfo(struct seq_file *m)
-{
-        struct device_node *np;
-        char *pp;
-        int plen;
-        char* mbname;
-        int mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
-                                        PMAC_MB_INFO_MODEL, 0);
-        unsigned int mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
-                                                 PMAC_MB_INFO_FLAGS, 0);
-
-        if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
-                              (long)&mbname) != 0)
-                mbname = "Unknown";
-        
-        /* find motherboard type */
-        seq_printf(m, "machine\t\t: ");
-        np = of_find_node_by_path("/");
-        if (np != NULL) {
-                pp = (char *) get_property(np, "model", NULL);
-                if (pp != NULL)
-                        seq_printf(m, "%s\n", pp);
-                else
-                        seq_printf(m, "PowerMac\n");
-                pp = (char *) get_property(np, "compatible", &plen);
-                if (pp != NULL) {
-                        seq_printf(m, "motherboard\t:");
-                        while (plen > 0) {
-                                int l = strlen(pp) + 1;
-                                seq_printf(m, " %s", pp);
-                                plen -= l;
-                                pp += l;
-                        }
-                        seq_printf(m, "\n");
-                }
-                of_node_put(np);
-        } else
-                seq_printf(m, "PowerMac\n");
-
-        /* print parsed model */
-        seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
-        seq_printf(m, "pmac flags\t: %08x\n", mbflags);
-
-        /* Indicate newworld */
-        seq_printf(m, "pmac-generation\t: NewWorld\n");
-}
-
-
-static void __init pmac_setup_arch(void)
-{
-        /* init to some ~sane value until calibrate_delay() runs */
-        loops_per_jiffy = 50000000;
-
-        /* Probe motherboard chipset */
-        pmac_feature_init();
-#if 0
-        /* Lock-enable the SCC channel used for debug */
-        if (sccdbg) {
-                np = of_find_node_by_name(NULL, "escc");
-                if (np)
-                        pmac_call_feature(PMAC_FTR_SCC_ENABLE, np,
-                                          PMAC_SCC_ASYNC | PMAC_SCC_FLAG_XMON, 1);
-        }
-#endif
-        /* We can NAP */
-        powersave_nap = 1;
-
-#ifdef CONFIG_ADB_PMU
-        /* Initialize the PMU if any */
-        find_via_pmu();
-#endif
-#ifdef CONFIG_PMAC_SMU
-        /* Initialize the SMU if any */
-        smu_init();
-#endif
-
-        /* Init NVRAM access */
-        pmac_nvram_init();
-
-        /* Setup SMP callback */
-#ifdef CONFIG_SMP
-        pmac_setup_smp();
-#endif
-
-        /* Lookup PCI hosts */
-        pmac_pci_init();
-
-#ifdef CONFIG_DUMMY_CONSOLE
-        conswitchp = &dummy_con;
-#endif
-
-        printk(KERN_INFO "Using native/NAP idle loop\n");
-}
-
-#ifdef CONFIG_SCSI
-void note_scsi_host(struct device_node *node, void *host)
-{
-        /* Obsolete */
-}
-#endif
-
-
-static int initializing = 1;
-
-static int pmac_late_init(void)
-{
-        initializing = 0;
-        return 0;
-}
-
-late_initcall(pmac_late_init);
-
-/* can't be __init - can be called whenever a disk is first accessed */
-void __pmac note_bootable_part(dev_t dev, int part, int goodness)
-{
-        extern dev_t boot_dev;
-        char *p;
-
-        if (!initializing)
-                return;
-        if ((goodness <= current_root_goodness) &&
-            ROOT_DEV != DEFAULT_ROOT_DEVICE)
-                return;
-        p = strstr(saved_command_line, "root=");
-        if (p != NULL && (p == saved_command_line || p[-1] == ' '))
-                return;
-
-        if (!boot_dev || dev == boot_dev) {
-                ROOT_DEV = dev + part;
-                boot_dev = 0;
-                current_root_goodness = goodness;
-        }
-}
-
-static void __pmac pmac_restart(char *cmd)
-{
-        switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
-        case SYS_CTRLER_PMU:
-                pmu_restart();
-                break;
-#endif
-
-#ifdef CONFIG_PMAC_SMU
-        case SYS_CTRLER_SMU:
-                smu_restart();
-                break;
-#endif
-        default:
-                ;
-        }
-}
-
-static void __pmac pmac_power_off(void)
-{
-        switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
-        case SYS_CTRLER_PMU:
-                pmu_shutdown();
-                break;
-#endif
-#ifdef CONFIG_PMAC_SMU
-        case SYS_CTRLER_SMU:
-                smu_shutdown();
-                break;
-#endif
-        default:
-                ;
-        }
-}
-
-static void __pmac pmac_halt(void)
-{
-        pmac_power_off();
-}
-
-#ifdef CONFIG_BOOTX_TEXT
-static void btext_putc(unsigned char c)
-{
-        btext_drawchar(c);
-}
-
-static void __init init_boot_display(void)
-{
-        char *name;
-        struct device_node *np = NULL; 
-        int rc = -ENODEV;
-
-        printk("trying to initialize btext ...\n");
-
-        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
-        if (name != NULL) {
-                np = of_find_node_by_path(name);
-                if (np != NULL) {
-                        if (strcmp(np->type, "display") != 0) {
-                                printk("boot stdout isn't a display !\n");
-                                of_node_put(np);
-                                np = NULL;
-                        }
-                }
-        }
-        if (np)
-                rc = btext_initialize(np);
-        if (rc == 0)
-                return;
-
-        for (np = NULL; (np = of_find_node_by_type(np, "display"));) {
-                if (get_property(np, "linux,opened", NULL)) {
-                        printk("trying %s ...\n", np->full_name);
-                        rc = btext_initialize(np);
-                        printk("result: %d\n", rc);
-                }
-                if (rc == 0)
-                        return;
-        }
-}
-#endif /* CONFIG_BOOTX_TEXT */
-
-/* 
- * Early initialization.
- */
-static void __init pmac_init_early(void)
-{
-        DBG(" -> pmac_init_early\n");
-
-        /* Initialize hash table, from now on, we can take hash faults
-         * and call ioremap
-         */
-        hpte_init_native();
-
-        /* Init SCC */
-        if (strstr(cmd_line, "sccdbg")) {
-                sccdbg = 1;
-                udbg_init_scc(NULL);
-        }
-#ifdef CONFIG_BOOTX_TEXT
-        else {
-                init_boot_display();
-
-                udbg_putc = btext_putc;
-        }
-#endif /* CONFIG_BOOTX_TEXT */
-
-        /* Setup interrupt mapping options */
-        ppc64_interrupt_controller = IC_OPEN_PIC;
-
-        iommu_init_early_u3();
-
-        DBG(" <- pmac_init_early\n");
-}
-
-static int pmac_u3_cascade(struct pt_regs *regs, void *data)
-{
-        return mpic_get_one_irq((struct mpic *)data, regs);
-}
-
-static __init void pmac_init_IRQ(void)
-{
-        struct device_node *irqctrler  = NULL;
-        struct device_node *irqctrler2 = NULL;
-        struct device_node *np = NULL;
-        struct mpic *mpic1, *mpic2;
-
-        /* We first try to detect Apple's new Core99 chipset, since mac-io
-         * is quite different on those machines and contains an IBM MPIC2.
-         */
-        while ((np = of_find_node_by_type(np, "open-pic")) != NULL) {
-                struct device_node *parent = of_get_parent(np);
-                if (parent && !strcmp(parent->name, "u3"))
-                        irqctrler2 = of_node_get(np);
-                else
-                        irqctrler = of_node_get(np);
-                of_node_put(parent);
-        }
-        if (irqctrler != NULL && irqctrler->n_addrs > 0) {
-                unsigned char senses[128];
-
-                printk(KERN_INFO "PowerMac using OpenPIC irq controller at 0x%08x\n",
-                       (unsigned int)irqctrler->addrs[0].address);
-
-                prom_get_irq_senses(senses, 0, 128);
-                mpic1 = mpic_alloc(irqctrler->addrs[0].address,
-                                   MPIC_PRIMARY | MPIC_WANTS_RESET,
-                                   0, 0, 128, 256, senses, 128, " K2-MPIC  ");
-                BUG_ON(mpic1 == NULL);
-                mpic_init(mpic1);               
-
-                if (irqctrler2 != NULL && irqctrler2->n_intrs > 0 &&
-                    irqctrler2->n_addrs > 0) {
-                        printk(KERN_INFO "Slave OpenPIC at 0x%08x hooked on IRQ %d\n",
-                               (u32)irqctrler2->addrs[0].address,
-                               irqctrler2->intrs[0].line);
-
-                        pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler2, 0, 0);
-                        prom_get_irq_senses(senses, 128, 128 + 128);
-
-                        /* We don't need to set MPIC_BROKEN_U3 here since we don't have
-                         * hypertransport interrupts routed to it
-                         */
-                        mpic2 = mpic_alloc(irqctrler2->addrs[0].address,
-                                           MPIC_BIG_ENDIAN | MPIC_WANTS_RESET,
-                                           0, 128, 128, 0, senses, 128, " U3-MPIC  ");
-                        BUG_ON(mpic2 == NULL);
-                        mpic_init(mpic2);
-                        mpic_setup_cascade(irqctrler2->intrs[0].line,
-                                           pmac_u3_cascade, mpic2);
-                }
-        }
-        of_node_put(irqctrler);
-        of_node_put(irqctrler2);
-}
-
-static void __init pmac_progress(char *s, unsigned short hex)
-{
-        if (sccdbg) {
-                udbg_puts(s);
-                udbg_puts("\n");
-        }
-#ifdef CONFIG_BOOTX_TEXT
-        else if (boot_text_mapped) {
-                btext_drawstring(s);
-                btext_drawstring("\n");
-        }
-#endif /* CONFIG_BOOTX_TEXT */
-}
-
-/*
- * pmac has no legacy IO, anything calling this function has to
- * fail or bad things will happen
- */
-static int pmac_check_legacy_ioport(unsigned int baseport)
-{
-        return -ENODEV;
-}
-
-static int __init pmac_declare_of_platform_devices(void)
-{
-        struct device_node *np, *npp;
-
-        npp = of_find_node_by_name(NULL, "u3");
-        if (npp) {
-                for (np = NULL; (np = of_get_next_child(npp, np)) != NULL;) {
-                        if (strncmp(np->name, "i2c", 3) == 0) {
-                                of_platform_device_create(np, "u3-i2c", NULL);
-                                of_node_put(np);
-                                break;
-                        }
-                }
-                of_node_put(npp);
-        }
-        npp = of_find_node_by_type(NULL, "smu");
-        if (npp) {
-                of_platform_device_create(npp, "smu", NULL);
-                of_node_put(npp);
-        }
-
-        return 0;
-}
-
-device_initcall(pmac_declare_of_platform_devices);
-
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init pmac_probe(int platform)
-{
-        if (platform != PLATFORM_POWERMAC)
-                return 0;
-        /*
-         * On U3, the DART (iommu) must be allocated now since it
-         * has an impact on htab_initialize (due to the large page it
-         * occupies having to be broken up so the DART itself is not
-         * part of the cacheable linar mapping
-         */
-        alloc_u3_dart_table();
-
-#ifdef CONFIG_PMAC_SMU
-        /*
-         * SMU based G5s need some memory below 2Gb, at least the current
-         * driver needs that. We have to allocate it now. We allocate 4k
-         * (1 small page) for now.
-         */
-        smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
-#endif /* CONFIG_PMAC_SMU */
-
-        return 1;
-}
-
-static int pmac_probe_mode(struct pci_bus *bus)
-{
-        struct device_node *node = bus->sysdata;
-
-        /* We need to use normal PCI probing for the AGP bus,
-           since the device for the AGP bridge isn't in the tree. */
-        if (bus->self == NULL && device_is_compatible(node, "u3-agp"))
-                return PCI_PROBE_NORMAL;
-
-        return PCI_PROBE_DEVTREE;
-}
-
-struct machdep_calls __initdata pmac_md = {
-#ifdef CONFIG_HOTPLUG_CPU
-        .cpu_die                = generic_mach_cpu_die,
-#endif
-        .probe                  = pmac_probe,
-        .setup_arch             = pmac_setup_arch,
-        .init_early             = pmac_init_early,
-        .get_cpuinfo            = pmac_show_cpuinfo,
-        .init_IRQ               = pmac_init_IRQ,
-        .get_irq                = mpic_get_irq,
-        .pcibios_fixup          = pmac_pcibios_fixup,
-        .pci_probe_mode         = pmac_probe_mode,
-        .restart                = pmac_restart,
-        .power_off              = pmac_power_off,
-        .halt                   = pmac_halt,
-        .get_boot_time          = pmac_get_boot_time,
-        .set_rtc_time           = pmac_set_rtc_time,
-        .get_rtc_time           = pmac_get_rtc_time,
-        .calibrate_decr         = pmac_calibrate_decr,
-        .feature_call           = pmac_do_feature_call,
-        .progress               = pmac_progress,
-        .check_legacy_ioport    = pmac_check_legacy_ioport,
-        .idle_loop              = native_idle,
-        .enable_pmcs            = power4_enable_pmcs,
-};
diff --git a/arch/ppc64/kernel/pmac_smp.c b/arch/ppc64/kernel/pmac_smp.c
deleted file mode 100644
index a23de37227bf..000000000000
--- a/arch/ppc64/kernel/pmac_smp.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * SMP support for power macintosh.
- *
- * We support both the old "powersurge" SMP architecture
- * and the current Core99 (G4 PowerMac) machines.
- *
- * Note that we don't support the very first rev. of
- * Apple/DayStar 2 CPUs board, the one with the funky
- * watchdog. Hopefully, none of these should be there except
- * maybe internally to Apple. I should probably still add some
- * code to detect this card though and disable SMP. --BenH.
- *
- * Support Macintosh G4 SMP by Troy Benjegerdes (hozer@drgw.net)
- * and Ben Herrenschmidt <benh@kernel.crashing.org>.
- *
- * Support for DayStar quad CPU cards
- * Copyright (C) XLR8, Inc. 1994-2000
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/irq.h>
-
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/smp.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/time.h>
-#include <asm/cacheflush.h>
-#include <asm/keylargo.h>
-#include <asm/pmac_low_i2c.h>
-
-#include "mpic.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-extern void pmac_secondary_start_1(void);
-extern void pmac_secondary_start_2(void);
-extern void pmac_secondary_start_3(void);
-
-extern struct smp_ops_t *smp_ops;
-
-static void (*pmac_tb_freeze)(int freeze);
-static struct device_node *pmac_tb_clock_chip_host;
-static u8 pmac_tb_pulsar_addr;
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned long timebase;
-
-static void smp_core99_cypress_tb_freeze(int freeze)
-{
-        u8 data;
-        int rc;
-
-        /* Strangely, the device-tree says address is 0xd2, but darwin
-         * accesses 0xd0 ...
-         */
-        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
-        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
-                               0xd0 | pmac_low_i2c_read,
-                               0x81, &data, 1);
-        if (rc != 0)
-                goto bail;
-
-        data = (data & 0xf3) | (freeze ? 0x00 : 0x0c);
-
-        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
-        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
-                               0xd0 | pmac_low_i2c_write,
-                               0x81, &data, 1);
-
- bail:
-        if (rc != 0) {
-                printk("Cypress Timebase %s rc: %d\n",
-                       freeze ? "freeze" : "unfreeze", rc);
-                panic("Timebase freeze failed !\n");
-        }
-}
-
-static void smp_core99_pulsar_tb_freeze(int freeze)
-{
-        u8 data;
-        int rc;
-
-        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
-        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
-                               pmac_tb_pulsar_addr | pmac_low_i2c_read,
-                               0x2e, &data, 1);
-        if (rc != 0)
-                goto bail;
-
-        data = (data & 0x88) | (freeze ? 0x11 : 0x22);
-
-        pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
-        rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
-                               pmac_tb_pulsar_addr | pmac_low_i2c_write,
-                               0x2e, &data, 1);
- bail:
-        if (rc != 0) {
-                printk(KERN_ERR "Pulsar Timebase %s rc: %d\n",
-                       freeze ? "freeze" : "unfreeze", rc);
-                panic("Timebase freeze failed !\n");
-        }
-}
-
-
-static void smp_core99_give_timebase(void)
-{
-        /* Open i2c bus for synchronous access */
-        if (pmac_low_i2c_open(pmac_tb_clock_chip_host, 0))
-                panic("Can't open i2c for TB sync !\n");
-
-        spin_lock(&timebase_lock);
-        (*pmac_tb_freeze)(1);
-        mb();
-        timebase = get_tb();
-        spin_unlock(&timebase_lock);
-
-        while (timebase)
-                barrier();
-
-        spin_lock(&timebase_lock);
-        (*pmac_tb_freeze)(0);
-        spin_unlock(&timebase_lock);
-
-        /* Close i2c bus */
-        pmac_low_i2c_close(pmac_tb_clock_chip_host);
-}
-
-
-static void __devinit smp_core99_take_timebase(void)
-{
-        while (!timebase)
-                barrier();
-        spin_lock(&timebase_lock);
-        set_tb(timebase >> 32, timebase & 0xffffffff);
-        timebase = 0;
-        spin_unlock(&timebase_lock);
-}
-
-
-static int __init smp_core99_probe(void)
-{
-        struct device_node *cpus;       
-        struct device_node *cc; 
-        int ncpus = 0;
-
-        /* Maybe use systemconfiguration here ? */
-        if (ppc_md.progress) ppc_md.progress("smp_core99_probe", 0x345);
-
-        /* Count CPUs in the device-tree */
-        for (cpus = NULL; (cpus = of_find_node_by_type(cpus, "cpu")) != NULL;)
-                ++ncpus;
-
-        printk(KERN_INFO "PowerMac SMP probe found %d cpus\n", ncpus);
-
-        /* Nothing more to do if less than 2 of them */
-        if (ncpus <= 1)
-                return 1;
-
-        /* HW sync only on these platforms */
-        if (!machine_is_compatible("PowerMac7,2") &&
-            !machine_is_compatible("PowerMac7,3") &&
-            !machine_is_compatible("RackMac3,1"))
-                goto nohwsync;
-
-        /* Look for the clock chip */
-        for (cc = NULL; (cc = of_find_node_by_name(cc, "i2c-hwclock")) != NULL;) {
-                struct device_node *p = of_get_parent(cc);
-                u32 *reg;
-                int ok;
-                ok = p && device_is_compatible(p, "uni-n-i2c");
-                if (!ok)
-                        goto next;
-                reg = (u32 *)get_property(cc, "reg", NULL);
-                if (reg == NULL)
-                        goto next;
-                switch (*reg) {
-                case 0xd2:
-                        if (device_is_compatible(cc, "pulsar-legacy-slewing")) {
-                                pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
-                                pmac_tb_pulsar_addr = 0xd2;
-                                printk(KERN_INFO "Timebase clock is Pulsar chip\n");
-                        } else if (device_is_compatible(cc, "cy28508")) {
-                                pmac_tb_freeze = smp_core99_cypress_tb_freeze;
-                                printk(KERN_INFO "Timebase clock is Cypress chip\n");
-                        }
-                        break;
-                case 0xd4:
-                        pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
-                        pmac_tb_pulsar_addr = 0xd4;
-                        printk(KERN_INFO "Timebase clock is Pulsar chip\n");
-                        break;
-                }
-                if (pmac_tb_freeze != NULL) {
-                        pmac_tb_clock_chip_host = p;
-                        smp_ops->give_timebase = smp_core99_give_timebase;
-                        smp_ops->take_timebase = smp_core99_take_timebase;
-                        of_node_put(cc);
-                        of_node_put(p);
-                        break;
-                }
-        next:
-                of_node_put(p);
-        }
-
- nohwsync:
-        mpic_request_ipis();
-
-        return ncpus;
-}
-
-static void __init smp_core99_kick_cpu(int nr)
-{
-        int save_vector, j;
-        unsigned long new_vector;
-        unsigned long flags;
-        volatile unsigned int *vector
-                 = ((volatile unsigned int *)(KERNELBASE+0x100));
-
-        if (nr < 1 || nr > 3)
-                return;
-        if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu", 0x346);
-
-        local_irq_save(flags);
-        local_irq_disable();
-
-        /* Save reset vector */
-        save_vector = *vector;
-
-        /* Setup fake reset vector that does    
-         *   b .pmac_secondary_start - KERNELBASE
-         */
-        switch(nr) {
-        case 1:
-                new_vector = (unsigned long)pmac_secondary_start_1;
-                break;
-        case 2:
-                new_vector = (unsigned long)pmac_secondary_start_2;
-                break;                  
-        case 3:
-        default:
-                new_vector = (unsigned long)pmac_secondary_start_3;
-                break;
-        }
-        *vector = 0x48000002 + (new_vector - KERNELBASE);
-
-        /* flush data cache and inval instruction cache */
-        flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
-
-        /* Put some life in our friend */
-        pmac_call_feature(PMAC_FTR_RESET_CPU, NULL, nr, 0);
-        paca[nr].cpu_start = 1;
-
-        /* FIXME: We wait a bit for the CPU to take the exception, I should
-         * instead wait for the entry code to set something for me. Well,
-         * ideally, all that crap will be done in prom.c and the CPU left
-         * in a RAM-based wait loop like CHRP.
-         */
-        for (j = 1; j < 1000000; j++)
-                mb();
-
-        /* Restore our exception vector */
-        *vector = save_vector;
-        flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
-
-        local_irq_restore(flags);
-        if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347);
-}
-
-static void __init smp_core99_setup_cpu(int cpu_nr)
-{
-        /* Setup MPIC */
-        mpic_setup_this_cpu();
-
-        if (cpu_nr == 0) {
-                extern void g5_phy_disable_cpu1(void);
-
-                /* If we didn't start the second CPU, we must take
-                 * it off the bus
-                 */
-                if (num_online_cpus() < 2)              
-                        g5_phy_disable_cpu1();
-                if (ppc_md.progress) ppc_md.progress("smp_core99_setup_cpu 0 done", 0x349);
-        }
-}
-
-struct smp_ops_t core99_smp_ops __pmacdata = {
-        .message_pass   = smp_mpic_message_pass,
-        .probe          = smp_core99_probe,
-        .kick_cpu       = smp_core99_kick_cpu,
-        .setup_cpu      = smp_core99_setup_cpu,
-        .give_timebase  = smp_generic_give_timebase,
-        .take_timebase  = smp_generic_take_timebase,
-};
-
-void __init pmac_setup_smp(void)
-{
-        smp_ops = &core99_smp_ops;
-#ifdef CONFIG_HOTPLUG_CPU
-        smp_ops->cpu_enable = generic_cpu_enable;
-        smp_ops->cpu_disable = generic_cpu_disable;
-        smp_ops->cpu_die = generic_cpu_die;
-#endif
-}
diff --git a/arch/ppc64/kernel/pmac_time.c b/arch/ppc64/kernel/pmac_time.c
deleted file mode 100644
index 41bbb8c59697..000000000000
--- a/arch/ppc64/kernel/pmac_time.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * Support for periodic interrupts (100 per second) and for getting
- * the current time from the RTC on Power Macintoshes.
- *
- * We use the decrementer register for our periodic interrupts.
- *
- * Paul Mackerras       August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- * Copyright (C) 2003-2005 Benjamin Herrenschmidt.
- *
- */
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <linux/interrupt.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/time.h>
-#include <asm/nvram.h>
-#include <asm/smu.h>
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* Apparently the RTC stores seconds since 1 Jan 1904 */
-#define RTC_OFFSET      2082844800
-
-/*
- * Calibrate the decrementer frequency with the VIA timer 1.
- */
-#define VIA_TIMER_FREQ_6        4700000 /* time 1 frequency * 6 */
-
-extern struct timezone sys_tz;
-extern void to_tm(int tim, struct rtc_time * tm);
-
-void __pmac pmac_get_rtc_time(struct rtc_time *tm)
-{
-        switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
-        case SYS_CTRLER_PMU: {
-                /* TODO: Move that to a function in the PMU driver */
-                struct adb_request req;
-                unsigned int now;
-
-                if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
-                        return;
-                pmu_wait_complete(&req);
-                if (req.reply_len != 4)
-                        printk(KERN_ERR "pmac_get_rtc_time: PMU returned a %d"
-                               " bytes reply\n", req.reply_len);
-                now = (req.reply[0] << 24) + (req.reply[1] << 16)
-                        + (req.reply[2] << 8) + req.reply[3];
-                DBG("get: %u -> %u\n", (int)now, (int)(now - RTC_OFFSET));
-                now -= RTC_OFFSET;
-
-                to_tm(now, tm);
-                tm->tm_year -= 1900;
-                tm->tm_mon -= 1;
-        
-                DBG("-> tm_mday: %d, tm_mon: %d, tm_year: %d, %d:%02d:%02d\n",
-                    tm->tm_mday, tm->tm_mon, tm->tm_year,
-                    tm->tm_hour, tm->tm_min, tm->tm_sec);
-                break;
-        }
-#endif /* CONFIG_ADB_PMU */
-
-#ifdef CONFIG_PMAC_SMU
-        case SYS_CTRLER_SMU:
-                smu_get_rtc_time(tm, 1);
-                break;
-#endif /* CONFIG_PMAC_SMU */
-        default:
-                ;
-        }
-}
-
-int __pmac pmac_set_rtc_time(struct rtc_time *tm)
-{
-        switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
-        case SYS_CTRLER_PMU: {
-                /* TODO: Move that to a function in the PMU driver */
-                struct adb_request req;
-                unsigned int nowtime;
-
-                DBG("set: tm_mday: %d, tm_mon: %d, tm_year: %d,"
-                    " %d:%02d:%02d\n",
-                    tm->tm_mday, tm->tm_mon, tm->tm_year,
-                    tm->tm_hour, tm->tm_min, tm->tm_sec);
-
-                nowtime = mktime(tm->tm_year + 1900, tm->tm_mon + 1,
-                                 tm->tm_mday, tm->tm_hour, tm->tm_min,
-                                 tm->tm_sec);
-
-                DBG("-> %u -> %u\n", (int)nowtime,
-                    (int)(nowtime + RTC_OFFSET));
-                nowtime += RTC_OFFSET;
-
-                if (pmu_request(&req, NULL, 5, PMU_SET_RTC,
-                                nowtime >> 24, nowtime >> 16,
-                                nowtime >> 8, nowtime) < 0)
-                        return -ENXIO;
-                pmu_wait_complete(&req);
-                if (req.reply_len != 0)
-                        printk(KERN_ERR "pmac_set_rtc_time: PMU returned a %d"
-                               " bytes reply\n", req.reply_len);
-                return 0;
-        }
-#endif /* CONFIG_ADB_PMU */
-
-#ifdef CONFIG_PMAC_SMU
-        case SYS_CTRLER_SMU:
-                return smu_set_rtc_time(tm, 1);
-#endif /* CONFIG_PMAC_SMU */
-        default:
-                return -ENODEV;
-        }
-}
-
-void __init pmac_get_boot_time(struct rtc_time *tm)
-{
-        pmac_get_rtc_time(tm);
-
-#ifdef disabled__CONFIG_NVRAM
-        s32 delta = 0;
-        int dst;
-        
-        delta = ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x9)) << 16;
-        delta |= ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xa)) << 8;
-        delta |= pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xb);
-        if (delta & 0x00800000UL)
-                delta |= 0xFF000000UL;
-        dst = ((pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x8) & 0x80) != 0);
-        printk("GMT Delta read from XPRAM: %d minutes, DST: %s\n", delta/60,
-                dst ? "on" : "off");
-#endif
-}
-
-/*
- * Query the OF and get the decr frequency.
- * FIXME: merge this with generic_calibrate_decr
- */
-void __init pmac_calibrate_decr(void)
-{
-        struct device_node *cpu;
-        unsigned int freq, *fp;
-        struct div_result divres;
-
-        /*
-         * The cpu node should have a timebase-frequency property
-         * to tell us the rate at which the decrementer counts.
-         */
-        cpu = find_type_devices("cpu");
-        if (cpu == 0)
-                panic("can't find cpu node in time_init");
-        fp = (unsigned int *) get_property(cpu, "timebase-frequency", NULL);
-        if (fp == 0)
-                panic("can't get cpu timebase frequency");
-        freq = *fp;
-        printk("time_init: decrementer frequency = %u.%.6u MHz\n",
-               freq/1000000, freq%1000000);
-        tb_ticks_per_jiffy = freq / HZ;
-        tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
-        tb_ticks_per_usec = freq / 1000000;
-        tb_to_us = mulhwu_scale_factor(freq, 1000000);
-        div128_by_32( 1024*1024, 0, tb_ticks_per_sec, &divres );
-        tb_to_xs = divres.result_low;
-        ppc_tb_freq = freq;
-
-        fp = (unsigned int *)get_property(cpu, "clock-frequency", NULL);
-        if (fp == 0)
-                panic("can't get cpu processor frequency");
-        ppc_proc_freq = *fp;
-
-        setup_default_decr();
-}
-
diff --git a/arch/ppc64/kernel/ppc_ksyms.c b/arch/ppc64/kernel/ppc_ksyms.c
index 705742f4eec6..84006e26342c 100644
--- a/arch/ppc64/kernel/ppc_ksyms.c
+++ b/arch/ppc64/kernel/ppc_ksyms.c
@@ -19,7 +19,6 @@
 #include <asm/hw_irq.h>
 #include <asm/abs_addr.h>
 #include <asm/cacheflush.h>
-#include <asm/iSeries/HvCallSc.h>
 
 EXPORT_SYMBOL(strcpy);
 EXPORT_SYMBOL(strncpy);
@@ -46,17 +45,6 @@ EXPORT_SYMBOL(__strnlen_user);
 
 EXPORT_SYMBOL(reloc_offset);
 
-#ifdef CONFIG_PPC_ISERIES
-EXPORT_SYMBOL(HvCall0);
-EXPORT_SYMBOL(HvCall1);
-EXPORT_SYMBOL(HvCall2);
-EXPORT_SYMBOL(HvCall3);
-EXPORT_SYMBOL(HvCall4);
-EXPORT_SYMBOL(HvCall5);
-EXPORT_SYMBOL(HvCall6);
-EXPORT_SYMBOL(HvCall7);
-#endif
-
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
 EXPORT_SYMBOL(_insw);
@@ -77,14 +65,6 @@ EXPORT_SYMBOL(giveup_altivec);
 EXPORT_SYMBOL(__flush_icache_range);
 EXPORT_SYMBOL(flush_dcache_range);
 
-#ifdef CONFIG_SMP
-#ifdef CONFIG_PPC_ISERIES
-EXPORT_SYMBOL(local_get_flags);
-EXPORT_SYMBOL(local_irq_disable);
-EXPORT_SYMBOL(local_irq_restore);
-#endif
-#endif
-
 EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(memmove);
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index 7035deb6de92..97bfceb5353b 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -46,7 +46,6 @@
 #include <asm/pgtable.h>
 #include <asm/pci.h>
 #include <asm/iommu.h>
-#include <asm/bootinfo.h>
 #include <asm/ppcdebug.h>
 #include <asm/btext.h>
 #include <asm/sections.h>
@@ -78,11 +77,14 @@ typedef int interpret_func(struct device_node *, unsigned long *,
 extern struct rtas_t rtas;
 extern struct lmb lmb;
 extern unsigned long klimit;
+extern unsigned long memory_limit;
 
 static int __initdata dt_root_addr_cells;
 static int __initdata dt_root_size_cells;
 static int __initdata iommu_is_off;
 int __initdata iommu_force_on;
+unsigned long tce_alloc_start, tce_alloc_end;
+
 typedef u32 cell_t;
 
 #if 0
@@ -1063,7 +1065,6 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
 {
         u32 *prop;
         u64 *prop64;
-        extern unsigned long memory_limit, tce_alloc_start, tce_alloc_end;
 
         DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
 
@@ -1237,7 +1238,7 @@ void __init early_init_devtree(void *params)
         lmb_init();
         scan_flat_dt(early_init_dt_scan_root, NULL);
         scan_flat_dt(early_init_dt_scan_memory, NULL);
-        lmb_enforce_memory_limit();
+        lmb_enforce_memory_limit(memory_limit);
         lmb_analyze();
         systemcfg->physicalMemorySize = lmb_phys_mem_size();
         lmb_reserve(0, __pa(klimit));
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index f252670874a4..69924ba4d7d9 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -44,7 +44,6 @@
 #include <asm/pgtable.h>
 #include <asm/pci.h>
 #include <asm/iommu.h>
-#include <asm/bootinfo.h>
 #include <asm/ppcdebug.h>
 #include <asm/btext.h>
 #include <asm/sections.h>
diff --git a/arch/ppc64/kernel/ptrace.c b/arch/ppc64/kernel/ptrace.c
deleted file mode 100644
index b1c044ca5756..000000000000
--- a/arch/ppc64/kernel/ptrace.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- *  linux/arch/ppc64/kernel/ptrace.c
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Derived from "arch/m68k/kernel/ptrace.c"
- *  Copyright (C) 1994 by Hamish Macdonald
- *  Taken from linux/kernel/ptrace.c and modified for M680x0.
- *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
- *
- * Modified by Cort Dougan (cort@hq.fsmlabs.com)
- * and Paul Mackerras (paulus@linuxcare.com.au).
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file README.legal in the main directory of
- * this archive for more details.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/security.h>
-#include <linux/audit.h>
-#include <linux/seccomp.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/ptrace-common.h>
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
-        /* make sure the single step bit is not set. */
-        clear_single_step(child);
-}
-
-int sys_ptrace(long request, long pid, long addr, long data)
-{
-        struct task_struct *child;
-        int ret = -EPERM;
-
-        lock_kernel();
-        if (request == PTRACE_TRACEME) {
-                /* are we already being traced? */
-                if (current->ptrace & PT_PTRACED)
-                        goto out;
-                ret = security_ptrace(current->parent, current);
-                if (ret)
-                        goto out;
-                /* set the ptrace bit in the process flags. */
-                current->ptrace |= PT_PTRACED;
-                ret = 0;
-                goto out;
-        }
-        ret = -ESRCH;
-        read_lock(&tasklist_lock);
-        child = find_task_by_pid(pid);
-        if (child)
-                get_task_struct(child);
-        read_unlock(&tasklist_lock);
-        if (!child)
-                goto out;
-
-        ret = -EPERM;
-        if (pid == 1)           /* you may not mess with init */
-                goto out_tsk;
-
-        if (request == PTRACE_ATTACH) {
-                ret = ptrace_attach(child);
-                goto out_tsk;
-        }
-
-        ret = ptrace_check_attach(child, request == PTRACE_KILL);
-        if (ret < 0)
-                goto out_tsk;
-
-        switch (request) {
-        /* when I and D space are separate, these will need to be fixed. */
-        case PTRACE_PEEKTEXT: /* read word at location addr. */ 
-        case PTRACE_PEEKDATA: {
-                unsigned long tmp;
-                int copied;
-
-                copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-                ret = -EIO;
-                if (copied != sizeof(tmp))
-                        break;
-                ret = put_user(tmp,(unsigned long __user *) data);
-                break;
-        }
-
-        /* read the word at location addr in the USER area. */
-        case PTRACE_PEEKUSR: {
-                unsigned long index;
-                unsigned long tmp;
-
-                ret = -EIO;
-                /* convert to index and check */
-                index = (unsigned long) addr >> 3;
-                if ((addr & 7) || (index > PT_FPSCR))
-                        break;
-
-                if (index < PT_FPR0) {
-                        tmp = get_reg(child, (int)index);
-                } else {
-                        flush_fp_to_thread(child);
-                        tmp = ((unsigned long *)child->thread.fpr)[index - PT_FPR0];
-                }
-                ret = put_user(tmp,(unsigned long __user *) data);
-                break;
-        }
-
-        /* If I and D space are separate, this will have to be fixed. */
-        case PTRACE_POKETEXT: /* write the word at location addr. */
-        case PTRACE_POKEDATA:
-                ret = 0;
-                if (access_process_vm(child, addr, &data, sizeof(data), 1)
-                                == sizeof(data))
-                        break;
-                ret = -EIO;
-                break;
-
-        /* write the word at location addr in the USER area */
-        case PTRACE_POKEUSR: {
-                unsigned long index;
-
-                ret = -EIO;
-                /* convert to index and check */
-                index = (unsigned long) addr >> 3;
-                if ((addr & 7) || (index > PT_FPSCR))
-                        break;
-
-                if (index == PT_ORIG_R3)
-                        break;
-                if (index < PT_FPR0) {
-                        ret = put_reg(child, index, data);
-                } else {
-                        flush_fp_to_thread(child);
-                        ((unsigned long *)child->thread.fpr)[index - PT_FPR0] = data;
-                        ret = 0;
-                }
-                break;
-        }
-
-        case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-        case PTRACE_CONT: { /* restart after signal. */
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                if (request == PTRACE_SYSCALL)
-                        set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                else
-                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->exit_code = data;
-                /* make sure the single step bit is not set. */
-                clear_single_step(child);
-                wake_up_process(child);
-                ret = 0;
-                break;
-        }
-
-        /*
-         * make the child exit.  Best I can do is send it a sigkill.
-         * perhaps it should be put in the status that it wants to
-         * exit.
-         */
-        case PTRACE_KILL: {
-                ret = 0;
-                if (child->exit_state == EXIT_ZOMBIE)   /* already dead */
-                        break;
-                child->exit_code = SIGKILL;
-                /* make sure the single step bit is not set. */
-                clear_single_step(child);
-                wake_up_process(child);
-                break;
-        }
-
-        case PTRACE_SINGLESTEP: {  /* set the trap flag. */
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                set_single_step(child);
-                child->exit_code = data;
-                /* give it a chance to run. */
-                wake_up_process(child);
-                ret = 0;
-                break;
-        }
-
-        case PTRACE_GET_DEBUGREG: {
-                ret = -EINVAL;
-                /* We only support one DABR and no IABRS at the moment */
-                if (addr > 0)
-                        break;
-                ret = put_user(child->thread.dabr,
-                               (unsigned long __user *)data);
-                break;
-        }
-
-        case PTRACE_SET_DEBUGREG:
-                ret = ptrace_set_debugreg(child, addr, data);
-                break;
-
-        case PTRACE_DETACH:
-                ret = ptrace_detach(child, data);
-                break;
-
-        case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
-                int i;
-                unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
-                unsigned long __user *tmp = (unsigned long __user *)addr;
-
-                for (i = 0; i < 32; i++) {
-                        ret = put_user(*reg, tmp);
-                        if (ret)
-                                break;
-                        reg++;
-                        tmp++;
-                }
-                break;
-        }
-
-        case PPC_PTRACE_SETREGS: { /* Set GPRs 0 - 31. */
-                int i;
-                unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
-                unsigned long __user *tmp = (unsigned long __user *)addr;
-
-                for (i = 0; i < 32; i++) {
-                        ret = get_user(*reg, tmp);
-                        if (ret)
-                                break;
-                        reg++;
-                        tmp++;
-                }
-                break;
-        }
-
-        case PPC_PTRACE_GETFPREGS: { /* Get FPRs 0 - 31. */
-                int i;
-                unsigned long *reg = &((unsigned long *)child->thread.fpr)[0];
-                unsigned long __user *tmp = (unsigned long __user *)addr;
-
-                flush_fp_to_thread(child);
-
-                for (i = 0; i < 32; i++) {
-                        ret = put_user(*reg, tmp);
-                        if (ret)
-                                break;
-                        reg++;
-                        tmp++;
-                }
-                break;
-        }
-
-        case PPC_PTRACE_SETFPREGS: { /* Get FPRs 0 - 31. */
-                int i;
-                unsigned long *reg = &((unsigned long *)child->thread.fpr)[0];
-                unsigned long __user *tmp = (unsigned long __user *)addr;
-
-                flush_fp_to_thread(child);
-
-                for (i = 0; i < 32; i++) {
-                        ret = get_user(*reg, tmp);
-                        if (ret)
-                                break;
-                        reg++;
-                        tmp++;
-                }
-                break;
-        }
-
-#ifdef CONFIG_ALTIVEC
-        case PTRACE_GETVRREGS:
-                /* Get the child altivec register state. */
-                flush_altivec_to_thread(child);
-                ret = get_vrregs((unsigned long __user *)data, child);
-                break;
-
-        case PTRACE_SETVRREGS:
-                /* Set the child altivec register state. */
-                flush_altivec_to_thread(child);
-                ret = set_vrregs(child, (unsigned long __user *)data);
-                break;
-#endif
-
-        default:
-                ret = ptrace_request(child, request, addr, data);
-                break;
-        }
-out_tsk:
-        put_task_struct(child);
-out:
-        unlock_kernel();
-        return ret;
-}
-
-static void do_syscall_trace(void)
-{
-        /* the 0x80 provides a way for the tracing parent to distinguish
-           between a syscall stop and SIGTRAP delivery */
-        ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-                                 ? 0x80 : 0));
-
-        /*
-         * this isn't the same as continuing with a signal, but it will do
-         * for normal use.  strace only continues with a signal if the
-         * stopping signal is not SIGTRAP.  -brl
-         */
-        if (current->exit_code) {
-                send_sig(current->exit_code, current, 1);
-                current->exit_code = 0;
-        }
-}
-
-void do_syscall_trace_enter(struct pt_regs *regs)
-{
-        secure_computing(regs->gpr[0]);
-
-        if (test_thread_flag(TIF_SYSCALL_TRACE)
-            && (current->ptrace & PT_PTRACED))
-                do_syscall_trace();
-
-        if (unlikely(current->audit_context))
-                audit_syscall_entry(current,
-                                    test_thread_flag(TIF_32BIT)?AUDIT_ARCH_PPC:AUDIT_ARCH_PPC64,
-                                    regs->gpr[0],
-                                    regs->gpr[3], regs->gpr[4],
-                                    regs->gpr[5], regs->gpr[6]);
-
-}
-
-void do_syscall_trace_leave(struct pt_regs *regs)
-{
-        if (unlikely(current->audit_context))
-                audit_syscall_exit(current, 
-                                   (regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
-                                   regs->result);
-
-        if ((test_thread_flag(TIF_SYSCALL_TRACE)
-             || test_thread_flag(TIF_SINGLESTEP))
-            && (current->ptrace & PT_PTRACED))
-                do_syscall_trace();
-}
diff --git a/arch/ppc64/kernel/rtas-proc.c b/arch/ppc64/kernel/rtas-proc.c
index 1f3ff860fdf0..5bdd5b079d96 100644
--- a/arch/ppc64/kernel/rtas-proc.c
+++ b/arch/ppc64/kernel/rtas-proc.c
@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/seq_file.h>
 #include <linux/bitops.h>
+#include <linux/rtc.h>
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>
diff --git a/arch/ppc64/kernel/rtas_pci.c b/arch/ppc64/kernel/rtas_pci.c
index 4a9719b48abe..3ad15c90fbbd 100644
--- a/arch/ppc64/kernel/rtas_pci.c
+++ b/arch/ppc64/kernel/rtas_pci.c
@@ -38,9 +38,8 @@
 #include <asm/pci-bridge.h>
 #include <asm/iommu.h>
 #include <asm/rtas.h>
-
-#include "mpic.h"
-#include "pci.h"
+#include <asm/mpic.h>
+#include <asm/ppc-pci.h>
 
 /* RTAS tokens */
 static int read_pci_config;
@@ -401,7 +400,7 @@ unsigned long __init find_and_init_phbs(void)
                 if (!phb)
                         continue;
 
-                pci_process_bridge_OF_ranges(phb, node);
+                pci_process_bridge_OF_ranges(phb, node, 0);
                 pci_setup_phb_io(phb, index == 0);
 #ifdef CONFIG_PPC_PSERIES
                 if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) {
@@ -451,7 +450,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
         if (!phb)
                 return NULL;
 
-        pci_process_bridge_OF_ranges(phb, dn);
+        pci_process_bridge_OF_ranges(phb, dn, primary);
 
         pci_setup_phb_io_dynamic(phb, primary);
         of_node_put(root);
diff --git a/arch/ppc64/kernel/rtc.c b/arch/ppc64/kernel/rtc.c
index 6ff52bc61325..79e7ed2858dd 100644
--- a/arch/ppc64/kernel/rtc.c
+++ b/arch/ppc64/kernel/rtc.c
@@ -43,11 +43,8 @@
 #include <asm/time.h>
 #include <asm/rtas.h>
 
-#include <asm/iSeries/mf.h>
 #include <asm/machdep.h>
 
-extern int piranha_simulator;
-
 /*
  *      We sponge a minor off of the misc major. No need slurping
  *      up another valuable major dev number for this. If you add
@@ -265,44 +262,10 @@ static int rtc_read_proc(char *page, char **start, off_t off,
         return len;
 }
 
-#ifdef CONFIG_PPC_ISERIES
-/*
- * Get the RTC from the virtual service processor
- * This requires flowing LpEvents to the primary partition
- */
-void iSeries_get_rtc_time(struct rtc_time *rtc_tm)
-{
-        if (piranha_simulator)
-                return;
-
-        mf_get_rtc(rtc_tm);
-        rtc_tm->tm_mon--;
-}
-
-/*
- * Set the RTC in the virtual service processor
- * This requires flowing LpEvents to the primary partition
- */
-int iSeries_set_rtc_time(struct rtc_time *tm)
-{
-        mf_set_rtc(tm);
-        return 0;
-}
-
-void iSeries_get_boot_time(struct rtc_time *tm)
-{
-        if ( piranha_simulator )
-                return;
-
-        mf_get_boot_rtc(tm);
-        tm->tm_mon  -= 1;
-}
-#endif
-
 #ifdef CONFIG_PPC_RTAS
 #define MAX_RTC_WAIT 5000       /* 5 sec */
 #define RTAS_CLOCK_BUSY (-2)
-void rtas_get_boot_time(struct rtc_time *rtc_tm)
+unsigned long rtas_get_boot_time(void)
 {
         int ret[8];
         int error, wait_time;
@@ -322,15 +285,10 @@ void rtas_get_boot_time(struct rtc_time *rtc_tm)
         if (error != 0 && printk_ratelimit()) {
                 printk(KERN_WARNING "error: reading the clock failed (%d)\n",
                         error);
-                return;
+                return 0;
         }
 
-        rtc_tm->tm_sec = ret[5];
-        rtc_tm->tm_min = ret[4];
-        rtc_tm->tm_hour = ret[3];
-        rtc_tm->tm_mday = ret[2];
-        rtc_tm->tm_mon = ret[1] - 1;
-        rtc_tm->tm_year = ret[0] - 1900;
+        return mktime(ret[0], ret[1], ret[2], ret[3], ret[4], ret[5]);
 }
 
 /* NOTE: get_rtc_time will get an error if executed in interrupt context
diff --git a/arch/ppc64/kernel/signal.c b/arch/ppc64/kernel/signal.c
index 347112cca3c0..ec9d0984b6a0 100644
--- a/arch/ppc64/kernel/signal.c
+++ b/arch/ppc64/kernel/signal.c
@@ -133,7 +133,7 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
         flush_fp_to_thread(current);
 
         /* Make sure signal doesn't get spurrious FP exceptions */
-        current->thread.fpscr = 0;
+        current->thread.fpscr.val = 0;
 
 #ifdef CONFIG_ALTIVEC
         err |= __put_user(v_regs, &sc->v_regs);
diff --git a/arch/ppc64/kernel/smp.c b/arch/ppc64/kernel/smp.c
index 793b562da653..017c12919832 100644
--- a/arch/ppc64/kernel/smp.c
+++ b/arch/ppc64/kernel/smp.c
@@ -45,8 +45,7 @@
 #include <asm/cputable.h>
 #include <asm/system.h>
 #include <asm/abs_addr.h>
-
-#include "mpic.h"
+#include <asm/mpic.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -70,28 +69,6 @@ void smp_call_function_interrupt(void);
 int smt_enabled_at_boot = 1;
 
 #ifdef CONFIG_MPIC
-void smp_mpic_message_pass(int target, int msg)
-{
-        /* make sure we're sending something that translates to an IPI */
-        if ( msg > 0x3 ){
-                printk("SMP %d: smp_message_pass: unknown msg %d\n",
-                       smp_processor_id(), msg);
-                return;
-        }
-        switch ( target )
-        {
-        case MSG_ALL:
-                mpic_send_ipi(msg, 0xffffffff);
-                break;
-        case MSG_ALL_BUT_SELF:
-                mpic_send_ipi(msg, 0xffffffff & ~(1 << smp_processor_id()));
-                break;
-        default:
-                mpic_send_ipi(msg, 1 << target);
-                break;
-        }
-}
-
 int __init smp_mpic_probe(void)
 {
         int nr_cpus;
@@ -128,21 +105,6 @@ void __devinit smp_generic_kick_cpu(int nr)
 
 #endif /* CONFIG_MPIC */
 
-static void __init smp_space_timers(unsigned int max_cpus)
-{
-        int i;
-        unsigned long offset = tb_ticks_per_jiffy / max_cpus;
-        unsigned long previous_tb = paca[boot_cpuid].next_jiffy_update_tb;
-
-        for_each_cpu(i) {
-                if (i != boot_cpuid) {
-                        paca[i].next_jiffy_update_tb =
-                                previous_tb + offset;
-                        previous_tb = paca[i].next_jiffy_update_tb;
-                }
-        }
-}
-
 void smp_message_recv(int msg, struct pt_regs *regs)
 {
         switch(msg) {
diff --git a/arch/ppc64/kernel/traps.c b/arch/ppc64/kernel/traps.c
deleted file mode 100644
index 7467ae508e6e..000000000000
--- a/arch/ppc64/kernel/traps.c
+++ /dev/null
@@ -1,568 +0,0 @@
-/*
- *  linux/arch/ppc64/kernel/traps.c
- *
- *  Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- *  Modified by Cort Dougan (cort@cs.nmt.edu)
- *  and Paul Mackerras (paulus@cs.anu.edu.au)
- */
-
-/*
- * This file handles the architecture-dependent parts of hardware exceptions
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/kprobes.h>
-#include <asm/kdebug.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/ppcdebug.h>
-#include <asm/rtas.h>
-#include <asm/systemcfg.h>
-#include <asm/machdep.h>
-#include <asm/pmc.h>
-
-#ifdef CONFIG_DEBUGGER
-int (*__debugger)(struct pt_regs *regs);
-int (*__debugger_ipi)(struct pt_regs *regs);
-int (*__debugger_bpt)(struct pt_regs *regs);
-int (*__debugger_sstep)(struct pt_regs *regs);
-int (*__debugger_iabr_match)(struct pt_regs *regs);
-int (*__debugger_dabr_match)(struct pt_regs *regs);
-int (*__debugger_fault_handler)(struct pt_regs *regs);
-
-EXPORT_SYMBOL(__debugger);
-EXPORT_SYMBOL(__debugger_ipi);
-EXPORT_SYMBOL(__debugger_bpt);
-EXPORT_SYMBOL(__debugger_sstep);
-EXPORT_SYMBOL(__debugger_iabr_match);
-EXPORT_SYMBOL(__debugger_dabr_match);
-EXPORT_SYMBOL(__debugger_fault_handler);
-#endif
-
-struct notifier_block *ppc64_die_chain;
-static DEFINE_SPINLOCK(die_notifier_lock);
-
-int register_die_notifier(struct notifier_block *nb)
-{
-        int err = 0;
-        unsigned long flags;
-
-        spin_lock_irqsave(&die_notifier_lock, flags);
-        err = notifier_chain_register(&ppc64_die_chain, nb);
-        spin_unlock_irqrestore(&die_notifier_lock, flags);
-        return err;
-}
-
-/*
- * Trap & Exception support
- */
-
-static DEFINE_SPINLOCK(die_lock);
-
-int die(const char *str, struct pt_regs *regs, long err)
-{
-        static int die_counter;
-        int nl = 0;
-
-        if (debugger(regs))
-                return 1;
-
-        console_verbose();
-        spin_lock_irq(&die_lock);
-        bust_spinlocks(1);
-        printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
-#ifdef CONFIG_PREEMPT
-        printk("PREEMPT ");
-        nl = 1;
-#endif
-#ifdef CONFIG_SMP
-        printk("SMP NR_CPUS=%d ", NR_CPUS);
-        nl = 1;
-#endif
-#ifdef CONFIG_DEBUG_PAGEALLOC
-        printk("DEBUG_PAGEALLOC ");
-        nl = 1;
-#endif
-#ifdef CONFIG_NUMA
-        printk("NUMA ");
-        nl = 1;
-#endif
-        switch(systemcfg->platform) {
-                case PLATFORM_PSERIES:
-                        printk("PSERIES ");
-                        nl = 1;
-                        break;
-                case PLATFORM_PSERIES_LPAR:
-                        printk("PSERIES LPAR ");
-                        nl = 1;
-                        break;
-                case PLATFORM_ISERIES_LPAR:
-                        printk("ISERIES LPAR ");
-                        nl = 1;
-                        break;
-                case PLATFORM_POWERMAC:
-                        printk("POWERMAC ");
-                        nl = 1;
-                        break;
-                case PLATFORM_BPA:
-                        printk("BPA ");
-                        nl = 1;
-                        break;
-        }
-        if (nl)
-                printk("\n");
-        print_modules();
-        show_regs(regs);
-        bust_spinlocks(0);
-        spin_unlock_irq(&die_lock);
-
-        if (in_interrupt())
-                panic("Fatal exception in interrupt");
-
-        if (panic_on_oops) {
-                printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
-                ssleep(5);
-                panic("Fatal exception");
-        }
-        do_exit(SIGSEGV);
-
-        return 0;
-}
-
-void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
-{
-        siginfo_t info;
-
-        if (!user_mode(regs)) {
-                if (die("Exception in kernel mode", regs, signr))
-                        return;
-        }
-
-        memset(&info, 0, sizeof(info));
-        info.si_signo = signr;
-        info.si_code = code;
-        info.si_addr = (void __user *) addr;
-        force_sig_info(signr, &info, current);
-}
-
-void system_reset_exception(struct pt_regs *regs)
-{
-        /* See if any machine dependent calls */
-        if (ppc_md.system_reset_exception)
-                ppc_md.system_reset_exception(regs);
-
-        die("System Reset", regs, 0);
-
-        /* Must die if the interrupt is not recoverable */
-        if (!(regs->msr & MSR_RI))
-                panic("Unrecoverable System Reset");
-
-        /* What should we do here? We could issue a shutdown or hard reset. */
-}
-
-void machine_check_exception(struct pt_regs *regs)
-{
-        int recover = 0;
-
-        /* See if any machine dependent calls */
-        if (ppc_md.machine_check_exception)
-                recover = ppc_md.machine_check_exception(regs);
-
-        if (recover)
-                return;
-
-        if (debugger_fault_handler(regs))
-                return;
-        die("Machine check", regs, 0);
-
-        /* Must die if the interrupt is not recoverable */
-        if (!(regs->msr & MSR_RI))
-                panic("Unrecoverable Machine check");
-}
-
-void unknown_exception(struct pt_regs *regs)
-{
-        printk("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
-               regs->nip, regs->msr, regs->trap);
-
-        _exception(SIGTRAP, regs, 0, 0);
-}
-
-void instruction_breakpoint_exception(struct pt_regs *regs)
-{
-        if (notify_die(DIE_IABR_MATCH, "iabr_match", regs, 5,
-                                        5, SIGTRAP) == NOTIFY_STOP)
-                return;
-        if (debugger_iabr_match(regs))
-                return;
-        _exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
-}
-
-void __kprobes single_step_exception(struct pt_regs *regs)
-{
-        regs->msr &= ~MSR_SE;  /* Turn off 'trace' bit */
-
-        if (notify_die(DIE_SSTEP, "single_step", regs, 5,
-                                        5, SIGTRAP) == NOTIFY_STOP)
-                return;
-        if (debugger_sstep(regs))
-                return;
-
-        _exception(SIGTRAP, regs, TRAP_TRACE, regs->nip);
-}
-
-/*
- * After we have successfully emulated an instruction, we have to
- * check if the instruction was being single-stepped, and if so,
- * pretend we got a single-step exception.  This was pointed out
- * by Kumar Gala.  -- paulus
- */
-static inline void emulate_single_step(struct pt_regs *regs)
-{
-        if (regs->msr & MSR_SE)
-                single_step_exception(regs);
-}
-
-static void parse_fpe(struct pt_regs *regs)
-{
-        int code = 0;
-        unsigned long fpscr;
-
-        flush_fp_to_thread(current);
-
-        fpscr = current->thread.fpscr;
-
-        /* Invalid operation */
-        if ((fpscr & FPSCR_VE) && (fpscr & FPSCR_VX))
-                code = FPE_FLTINV;
-
-        /* Overflow */
-        else if ((fpscr & FPSCR_OE) && (fpscr & FPSCR_OX))
-                code = FPE_FLTOVF;
-
-        /* Underflow */
-        else if ((fpscr & FPSCR_UE) && (fpscr & FPSCR_UX))
-                code = FPE_FLTUND;
-
-        /* Divide by zero */
-        else if ((fpscr & FPSCR_ZE) && (fpscr & FPSCR_ZX))
-                code = FPE_FLTDIV;
-
-        /* Inexact result */
-        else if ((fpscr & FPSCR_XE) && (fpscr & FPSCR_XX))
-                code = FPE_FLTRES;
-
-        _exception(SIGFPE, regs, code, regs->nip);
-}
-
-/*
- * Illegal instruction emulation support.  Return non-zero if we can't
- * emulate, or -EFAULT if the associated memory access caused an access
- * fault.  Return zero on success.
- */
-
-#define INST_MFSPR_PVR          0x7c1f42a6
-#define INST_MFSPR_PVR_MASK     0xfc1fffff
-
-#define INST_DCBA               0x7c0005ec
-#define INST_DCBA_MASK          0x7c0007fe
-
-#define INST_MCRXR              0x7c000400
-#define INST_MCRXR_MASK         0x7c0007fe
-
-static int emulate_instruction(struct pt_regs *regs)
-{
-        unsigned int instword;
-
-        if (!user_mode(regs))
-                return -EINVAL;
-
-        CHECK_FULL_REGS(regs);
-
-        if (get_user(instword, (unsigned int __user *)(regs->nip)))
-                return -EFAULT;
-
-        /* Emulate the mfspr rD, PVR. */
-        if ((instword & INST_MFSPR_PVR_MASK) == INST_MFSPR_PVR) {
-                unsigned int rd;
-
-                rd = (instword >> 21) & 0x1f;
-                regs->gpr[rd] = mfspr(SPRN_PVR);
-                return 0;
-        }
-
-        /* Emulating the dcba insn is just a no-op.  */
-        if ((instword & INST_DCBA_MASK) == INST_DCBA) {
-                static int warned;
-
-                if (!warned) {
-                        printk(KERN_WARNING
-                               "process %d (%s) uses obsolete 'dcba' insn\n",
-                               current->pid, current->comm);
-                        warned = 1;
-                }
-                return 0;
-        }
-
-        /* Emulate the mcrxr insn.  */
-        if ((instword & INST_MCRXR_MASK) == INST_MCRXR) {
-                static int warned;
-                unsigned int shift;
-
-                if (!warned) {
-                        printk(KERN_WARNING
-                               "process %d (%s) uses obsolete 'mcrxr' insn\n",
-                               current->pid, current->comm);
-                        warned = 1;
-                }
-
-                shift = (instword >> 21) & 0x1c;
-                regs->ccr &= ~(0xf0000000 >> shift);
-                regs->ccr |= (regs->xer & 0xf0000000) >> shift;
-                regs->xer &= ~0xf0000000;
-                return 0;
-        }
-
-        return -EINVAL;
-}
-
-/*
- * Look through the list of trap instructions that are used for BUG(),
- * BUG_ON() and WARN_ON() and see if we hit one.  At this point we know
- * that the exception was caused by a trap instruction of some kind.
- * Returns 1 if we should continue (i.e. it was a WARN_ON) or 0
- * otherwise.
- */
-extern struct bug_entry __start___bug_table[], __stop___bug_table[];
-
-#ifndef CONFIG_MODULES
-#define module_find_bug(x)      NULL
-#endif
-
-struct bug_entry *find_bug(unsigned long bugaddr)
-{
-        struct bug_entry *bug;
-
-        for (bug = __start___bug_table; bug < __stop___bug_table; ++bug)
-                if (bugaddr == bug->bug_addr)
-                        return bug;
-        return module_find_bug(bugaddr);
-}
-
-static int
-check_bug_trap(struct pt_regs *regs)
-{
-        struct bug_entry *bug;
-        unsigned long addr;
-
-        if (regs->msr & MSR_PR)
-                return 0;       /* not in kernel */
-        addr = regs->nip;       /* address of trap instruction */
-        if (addr < PAGE_OFFSET)
-                return 0;
-        bug = find_bug(regs->nip);
-        if (bug == NULL)
-                return 0;
-        if (bug->line & BUG_WARNING_TRAP) {
-                /* this is a WARN_ON rather than BUG/BUG_ON */
-                printk(KERN_ERR "Badness in %s at %s:%d\n",
-                       bug->function, bug->file,
-                      (unsigned int)bug->line & ~BUG_WARNING_TRAP);
-                show_stack(current, (void *)regs->gpr[1]);
-                return 1;
-        }
-        printk(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
-               bug->function, bug->file, (unsigned int)bug->line);
-        return 0;
-}
-
-void __kprobes program_check_exception(struct pt_regs *regs)
-{
-        if (debugger_fault_handler(regs))
-                return;
-
-        if (regs->msr & 0x100000) {
-                /* IEEE FP exception */
-                parse_fpe(regs);
-        } else if (regs->msr & 0x20000) {
-                /* trap exception */
-
-                if (notify_die(DIE_BPT, "breakpoint", regs, 5,
-                                        5, SIGTRAP) == NOTIFY_STOP)
-                        return;
-                if (debugger_bpt(regs))
-                        return;
-
-                if (check_bug_trap(regs)) {
-                        regs->nip += 4;
-                        return;
-                }
-                _exception(SIGTRAP, regs, TRAP_BRKPT, regs->nip);
-
-        } else {
-                /* Privileged or illegal instruction; try to emulate it. */
-                switch (emulate_instruction(regs)) {
-                case 0:
-                        regs->nip += 4;
-                        emulate_single_step(regs);
-                        break;
-
-                case -EFAULT:
-                        _exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
-                        break;
-
-                default:
-                        if (regs->msr & 0x40000)
-                                /* priveleged */
-                                _exception(SIGILL, regs, ILL_PRVOPC, regs->nip);
-                        else
-                                /* illegal */
-                                _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
-                        break;
-                }
-        }
-}
-
-void kernel_fp_unavailable_exception(struct pt_regs *regs)
-{
-        printk(KERN_EMERG "Unrecoverable FP Unavailable Exception "
-                          "%lx at %lx\n", regs->trap, regs->nip);
-        die("Unrecoverable FP Unavailable Exception", regs, SIGABRT);
-}
-
-void altivec_unavailable_exception(struct pt_regs *regs)
-{
-        if (user_mode(regs)) {
-                /* A user program has executed an altivec instruction,
-                   but this kernel doesn't support altivec. */
-                _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
-                return;
-        }
-        printk(KERN_EMERG "Unrecoverable VMX/Altivec Unavailable Exception "
-                          "%lx at %lx\n", regs->trap, regs->nip);
-        die("Unrecoverable VMX/Altivec Unavailable Exception", regs, SIGABRT);
-}
-
-extern perf_irq_t perf_irq;
-
-void performance_monitor_exception(struct pt_regs *regs)
-{
-        perf_irq(regs);
-}
-
-void alignment_exception(struct pt_regs *regs)
-{
-        int fixed;
-
-        fixed = fix_alignment(regs);
-
-        if (fixed == 1) {
-                regs->nip += 4; /* skip over emulated instruction */
-                emulate_single_step(regs);
-                return;
-        }
-
-        /* Operand address was bad */   
-        if (fixed == -EFAULT) {
-                if (user_mode(regs)) {
-                        _exception(SIGSEGV, regs, SEGV_MAPERR, regs->dar);
-                } else {
-                        /* Search exception table */
-                        bad_page_fault(regs, regs->dar, SIGSEGV);
-                }
-
-                return;
-        }
-
-        _exception(SIGBUS, regs, BUS_ADRALN, regs->nip);
-}
-
-#ifdef CONFIG_ALTIVEC
-void altivec_assist_exception(struct pt_regs *regs)
-{
-        int err;
-        siginfo_t info;
-
-        if (!user_mode(regs)) {
-                printk(KERN_EMERG "VMX/Altivec assist exception in kernel mode"
-                       " at %lx\n", regs->nip);
-                die("Kernel VMX/Altivec assist exception", regs, SIGILL);
-        }
-
-        flush_altivec_to_thread(current);
-
-        err = emulate_altivec(regs);
-        if (err == 0) {
-                regs->nip += 4;         /* skip emulated instruction */
-                emulate_single_step(regs);
-                return;
-        }
-
-        if (err == -EFAULT) {
-                /* got an error reading the instruction */
-                info.si_signo = SIGSEGV;
-                info.si_errno = 0;
-                info.si_code = SEGV_MAPERR;
-                info.si_addr = (void __user *) regs->nip;
-                force_sig_info(SIGSEGV, &info, current);
-        } else {
-                /* didn't recognize the instruction */
-                /* XXX quick hack for now: set the non-Java bit in the VSCR */
-                if (printk_ratelimit())
-                        printk(KERN_ERR "Unrecognized altivec instruction "
-                               "in %s at %lx\n", current->comm, regs->nip);
-                current->thread.vscr.u[3] |= 0x10000;
-        }
-}
-#endif /* CONFIG_ALTIVEC */
-
-/*
- * We enter here if we get an unrecoverable exception, that is, one
- * that happened at a point where the RI (recoverable interrupt) bit
- * in the MSR is 0.  This indicates that SRR0/1 are live, and that
- * we therefore lost state by taking this exception.
- */
-void unrecoverable_exception(struct pt_regs *regs)
-{
-        printk(KERN_EMERG "Unrecoverable exception %lx at %lx\n",
-               regs->trap, regs->nip);
-        die("Unrecoverable exception", regs, SIGABRT);
-}
-
-/*
- * We enter here if we discover during exception entry that we are
- * running in supervisor mode with a userspace value in the stack pointer.
- */
-void kernel_bad_stack(struct pt_regs *regs)
-{
-        printk(KERN_EMERG "Bad kernel stack pointer %lx at %lx\n",
-               regs->gpr[1], regs->nip);
-        die("Bad kernel stack pointer", regs, SIGABRT);
-}
-
-void __init trap_init(void)
-{
-}
diff --git a/arch/ppc64/kernel/vdso64/sigtramp.S b/arch/ppc64/kernel/vdso64/sigtramp.S
index 8ae8f205e470..31b604ab56de 100644
--- a/arch/ppc64/kernel/vdso64/sigtramp.S
+++ b/arch/ppc64/kernel/vdso64/sigtramp.S
@@ -15,6 +15,7 @@
 #include <asm/ppc_asm.h>
 #include <asm/unistd.h>
 #include <asm/vdso.h>
+#include <asm/ptrace.h>         /* XXX for __SIGNAL_FRAMESIZE */
 
         .text
 
diff --git a/arch/ppc64/kernel/vecemu.c b/arch/ppc64/kernel/vecemu.c
deleted file mode 100644
index cb207629f21f..000000000000
--- a/arch/ppc64/kernel/vecemu.c
+++ /dev/null
@@ -1,346 +0,0 @@
-/*
- * Routines to emulate some Altivec/VMX instructions, specifically
- * those that can trap when given denormalized operands in Java mode.
- */
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-
-/* Functions in vector.S */
-extern void vaddfp(vector128 *dst, vector128 *a, vector128 *b);
-extern void vsubfp(vector128 *dst, vector128 *a, vector128 *b);
-extern void vmaddfp(vector128 *dst, vector128 *a, vector128 *b, vector128 *c);
-extern void vnmsubfp(vector128 *dst, vector128 *a, vector128 *b, vector128 *c);
-extern void vrefp(vector128 *dst, vector128 *src);
-extern void vrsqrtefp(vector128 *dst, vector128 *src);
-extern void vexptep(vector128 *dst, vector128 *src);
-
-static unsigned int exp2s[8] = {
-        0x800000,
-        0x8b95c2,
-        0x9837f0,
-        0xa5fed7,
-        0xb504f3,
-        0xc5672a,
-        0xd744fd,
-        0xeac0c7
-};
-
-/*
- * Computes an estimate of 2^x.  The `s' argument is the 32-bit
- * single-precision floating-point representation of x.
- */
-static unsigned int eexp2(unsigned int s)
-{
-        int exp, pwr;
-        unsigned int mant, frac;
-
-        /* extract exponent field from input */
-        exp = ((s >> 23) & 0xff) - 127;
-        if (exp > 7) {
-                /* check for NaN input */
-                if (exp == 128 && (s & 0x7fffff) != 0)
-                        return s | 0x400000;    /* return QNaN */
-                /* 2^-big = 0, 2^+big = +Inf */
-                return (s & 0x80000000)? 0: 0x7f800000; /* 0 or +Inf */
-        }
-        if (exp < -23)
-                return 0x3f800000;      /* 1.0 */
-
-        /* convert to fixed point integer in 9.23 representation */
-        pwr = (s & 0x7fffff) | 0x800000;
-        if (exp > 0)
-                pwr <<= exp;
-        else
-                pwr >>= -exp;
-        if (s & 0x80000000)
-                pwr = -pwr;
-
-        /* extract integer part, which becomes exponent part of result */
-        exp = (pwr >> 23) + 126;
-        if (exp >= 254)
-                return 0x7f800000;
-        if (exp < -23)
-                return 0;
-
-        /* table lookup on top 3 bits of fraction to get mantissa */
-        mant = exp2s[(pwr >> 20) & 7];
-
-        /* linear interpolation using remaining 20 bits of fraction */
-        asm("mulhwu %0,%1,%2" : "=r" (frac)
-            : "r" (pwr << 12), "r" (0x172b83ff));
-        asm("mulhwu %0,%1,%2" : "=r" (frac) : "r" (frac), "r" (mant));
-        mant += frac;
-
-        if (exp >= 0)
-                return mant + (exp << 23);
-
-        /* denormalized result */
-        exp = -exp;
-        mant += 1 << (exp - 1);
-        return mant >> exp;
-}
-
-/*
- * Computes an estimate of log_2(x).  The `s' argument is the 32-bit
- * single-precision floating-point representation of x.
- */
-static unsigned int elog2(unsigned int s)
-{
-        int exp, mant, lz, frac;
-
-        exp = s & 0x7f800000;
-        mant = s & 0x7fffff;
-        if (exp == 0x7f800000) {        /* Inf or NaN */
-                if (mant != 0)
-                        s |= 0x400000;  /* turn NaN into QNaN */
-                return s;
-        }
-        if ((exp | mant) == 0)          /* +0 or -0 */
-                return 0xff800000;      /* return -Inf */
-
-        if (exp == 0) {
-                /* denormalized */
-                asm("cntlzw %0,%1" : "=r" (lz) : "r" (mant));
-                mant <<= lz - 8;
-                exp = (-118 - lz) << 23;
-        } else {
-                mant |= 0x800000;
-                exp -= 127 << 23;
-        }
-
-        if (mant >= 0xb504f3) {                         /* 2^0.5 * 2^23 */
-                exp |= 0x400000;                        /* 0.5 * 2^23 */
-                asm("mulhwu %0,%1,%2" : "=r" (mant)
-                    : "r" (mant), "r" (0xb504f334));    /* 2^-0.5 * 2^32 */
-        }
-        if (mant >= 0x9837f0) {                         /* 2^0.25 * 2^23 */
-                exp |= 0x200000;                        /* 0.25 * 2^23 */
-                asm("mulhwu %0,%1,%2" : "=r" (mant)
-                    : "r" (mant), "r" (0xd744fccb));    /* 2^-0.25 * 2^32 */
-        }
-        if (mant >= 0x8b95c2) {                         /* 2^0.125 * 2^23 */
-                exp |= 0x100000;                        /* 0.125 * 2^23 */
-                asm("mulhwu %0,%1,%2" : "=r" (mant)
-                    : "r" (mant), "r" (0xeac0c6e8));    /* 2^-0.125 * 2^32 */
-        }
-        if (mant > 0x800000) {                          /* 1.0 * 2^23 */
-                /* calculate (mant - 1) * 1.381097463 */
-                /* 1.381097463 == 0.125 / (2^0.125 - 1) */
-                asm("mulhwu %0,%1,%2" : "=r" (frac)
-                    : "r" ((mant - 0x800000) << 1), "r" (0xb0c7cd3a));
-                exp += frac;
-        }
-        s = exp & 0x80000000;
-        if (exp != 0) {
-                if (s)
-                        exp = -exp;
-                asm("cntlzw %0,%1" : "=r" (lz) : "r" (exp));
-                lz = 8 - lz;
-                if (lz > 0)
-                        exp >>= lz;
-                else if (lz < 0)
-                        exp <<= -lz;
-                s += ((lz + 126) << 23) + exp;
-        }
-        return s;
-}
-
-#define VSCR_SAT        1
-
-static int ctsxs(unsigned int x, int scale, unsigned int *vscrp)
-{
-        int exp, mant;
-
-        exp = (x >> 23) & 0xff;
-        mant = x & 0x7fffff;
-        if (exp == 255 && mant != 0)
-                return 0;               /* NaN -> 0 */
-        exp = exp - 127 + scale;
-        if (exp < 0)
-                return 0;               /* round towards zero */
-        if (exp >= 31) {
-                /* saturate, unless the result would be -2^31 */
-                if (x + (scale << 23) != 0xcf000000)
-                        *vscrp |= VSCR_SAT;
-                return (x & 0x80000000)? 0x80000000: 0x7fffffff;
-        }
-        mant |= 0x800000;
-        mant = (mant << 7) >> (30 - exp);
-        return (x & 0x80000000)? -mant: mant;
-}
-
-static unsigned int ctuxs(unsigned int x, int scale, unsigned int *vscrp)
-{
-        int exp;
-        unsigned int mant;
-
-        exp = (x >> 23) & 0xff;
-        mant = x & 0x7fffff;
-        if (exp == 255 && mant != 0)
-                return 0;               /* NaN -> 0 */
-        exp = exp - 127 + scale;
-        if (exp < 0)
-                return 0;               /* round towards zero */
-        if (x & 0x80000000) {
-                /* negative => saturate to 0 */
-                *vscrp |= VSCR_SAT;
-                return 0;
-        }
-        if (exp >= 32) {
-                /* saturate */
-                *vscrp |= VSCR_SAT;
-                return 0xffffffff;
-        }
-        mant |= 0x800000;
-        mant = (mant << 8) >> (31 - exp);
-        return mant;
-}
-
-/* Round to floating integer, towards 0 */
-static unsigned int rfiz(unsigned int x)
-{
-        int exp;
-
-        exp = ((x >> 23) & 0xff) - 127;
-        if (exp == 128 && (x & 0x7fffff) != 0)
-                return x | 0x400000;    /* NaN -> make it a QNaN */
-        if (exp >= 23)
-                return x;               /* it's an integer already (or Inf) */
-        if (exp < 0)
-                return x & 0x80000000;  /* |x| < 1.0 rounds to 0 */
-        return x & ~(0x7fffff >> exp);
-}
-
-/* Round to floating integer, towards +/- Inf */
-static unsigned int rfii(unsigned int x)
-{
-        int exp, mask;
-
-        exp = ((x >> 23) & 0xff) - 127;
-        if (exp == 128 && (x & 0x7fffff) != 0)
-                return x | 0x400000;    /* NaN -> make it a QNaN */
-        if (exp >= 23)
-                return x;               /* it's an integer already (or Inf) */
-        if ((x & 0x7fffffff) == 0)
-                return x;               /* +/-0 -> +/-0 */
-        if (exp < 0)
-                /* 0 < |x| < 1.0 rounds to +/- 1.0 */
-                return (x & 0x80000000) | 0x3f800000;
-        mask = 0x7fffff >> exp;
-        /* mantissa overflows into exponent - that's OK,
-           it can't overflow into the sign bit */
-        return (x + mask) & ~mask;
-}
-
-/* Round to floating integer, to nearest */
-static unsigned int rfin(unsigned int x)
-{
-        int exp, half;
-
-        exp = ((x >> 23) & 0xff) - 127;
-        if (exp == 128 && (x & 0x7fffff) != 0)
-                return x | 0x400000;    /* NaN -> make it a QNaN */
-        if (exp >= 23)
-                return x;               /* it's an integer already (or Inf) */
-        if (exp < -1)
-                return x & 0x80000000;  /* |x| < 0.5 -> +/-0 */
-        if (exp == -1)
-                /* 0.5 <= |x| < 1.0 rounds to +/- 1.0 */
-                return (x & 0x80000000) | 0x3f800000;
-        half = 0x400000 >> exp;
-        /* add 0.5 to the magnitude and chop off the fraction bits */
-        return (x + half) & ~(0x7fffff >> exp);
-}
-
-int
-emulate_altivec(struct pt_regs *regs)
-{
-        unsigned int instr, i;
-        unsigned int va, vb, vc, vd;
-        vector128 *vrs;
-
-        if (get_user(instr, (unsigned int __user *) regs->nip))
-                return -EFAULT;
-        if ((instr >> 26) != 4)
-                return -EINVAL;         /* not an altivec instruction */
-        vd = (instr >> 21) & 0x1f;
-        va = (instr >> 16) & 0x1f;
-        vb = (instr >> 11) & 0x1f;
-        vc = (instr >> 6) & 0x1f;
-
-        vrs = current->thread.vr;
-        switch (instr & 0x3f) {
-        case 10:
-                switch (vc) {
-                case 0: /* vaddfp */
-                        vaddfp(&vrs[vd], &vrs[va], &vrs[vb]);
-                        break;
-                case 1: /* vsubfp */
-                        vsubfp(&vrs[vd], &vrs[va], &vrs[vb]);
-                        break;
-                case 4: /* vrefp */
-                        vrefp(&vrs[vd], &vrs[vb]);
-                        break;
-                case 5: /* vrsqrtefp */
-                        vrsqrtefp(&vrs[vd], &vrs[vb]);
-                        break;
-                case 6: /* vexptefp */
-                        for (i = 0; i < 4; ++i)
-                                vrs[vd].u[i] = eexp2(vrs[vb].u[i]);
-                        break;
-                case 7: /* vlogefp */
-                        for (i = 0; i < 4; ++i)
-                                vrs[vd].u[i] = elog2(vrs[vb].u[i]);
-                        break;
-                case 8:         /* vrfin */
-                        for (i = 0; i < 4; ++i)
-                                vrs[vd].u[i] = rfin(vrs[vb].u[i]);
-                        break;
-                case 9:         /* vrfiz */
-                        for (i = 0; i < 4; ++i)
-                                vrs[vd].u[i] = rfiz(vrs[vb].u[i]);
-                        break;
-                case 10:        /* vrfip */
-                        for (i = 0; i < 4; ++i) {
-                                u32 x = vrs[vb].u[i];
-                                x = (x & 0x80000000)? rfiz(x): rfii(x);
-                                vrs[vd].u[i] = x;
-                        }
-                        break;
-                case 11:        /* vrfim */
-                        for (i = 0; i < 4; ++i) {
-                                u32 x = vrs[vb].u[i];
-                                x = (x & 0x80000000)? rfii(x): rfiz(x);
-                                vrs[vd].u[i] = x;
-                        }
-                        break;
-                case 14:        /* vctuxs */
-                        for (i = 0; i < 4; ++i)
-                                vrs[vd].u[i] = ctuxs(vrs[vb].u[i], va,
-                                                &current->thread.vscr.u[3]);
-                        break;
-                case 15:        /* vctsxs */
-                        for (i = 0; i < 4; ++i)
-                                vrs[vd].u[i] = ctsxs(vrs[vb].u[i], va,
-                                                &current->thread.vscr.u[3]);
-                        break;
-                default:
-                        return -EINVAL;
-                }
-                break;
-        case 46:        /* vmaddfp */
-                vmaddfp(&vrs[vd], &vrs[va], &vrs[vb], &vrs[vc]);
-                break;
-        case 47:        /* vnmsubfp */
-                vnmsubfp(&vrs[vd], &vrs[va], &vrs[vb], &vrs[vc]);
-                break;
-        default:
-                return -EINVAL;
-        }
-
-        return 0;
-}
diff --git a/arch/ppc64/kernel/vmlinux.lds.S b/arch/ppc64/kernel/vmlinux.lds.S
index 0306510bc4ff..022f220e772f 100644
--- a/arch/ppc64/kernel/vmlinux.lds.S
+++ b/arch/ppc64/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+#include <asm/page.h>
 #include <asm-generic/vmlinux.lds.h>
 
 OUTPUT_ARCH(powerpc:common64)
@@ -17,7 +18,7 @@ SECTIONS
         LOCK_TEXT
         KPROBES_TEXT
         *(.fixup)
-        . = ALIGN(4096);
+        . = ALIGN(PAGE_SIZE);
         _etext = .;
         }
 
@@ -43,7 +44,7 @@ SECTIONS
 
 
   /* will be freed after init */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __init_begin = .;
 
   .init.text : {
@@ -83,7 +84,7 @@ SECTIONS
 
   SECURITY_INIT
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .init.ramfs : {
         __initramfs_start = .;
         *(.init.ramfs)
@@ -96,18 +97,22 @@ SECTIONS
         __per_cpu_end = .;
         }
 
+  . = ALIGN(PAGE_SIZE);
   . = ALIGN(16384);
   __init_end = .;
   /* freed after init ends here */
 
 
   /* Read/write sections */
+  . = ALIGN(PAGE_SIZE);
   . = ALIGN(16384);
+  _sdata = .;
   /* The initial task and kernel stack */
   .data.init_task : {
         *(.data.init_task)
         }
 
+  . = ALIGN(PAGE_SIZE);
   .data.page_aligned : {
         *(.data.page_aligned)
         }
@@ -129,18 +134,18 @@ SECTIONS
         __toc_start = .;
         *(.got)
         *(.toc)
-        . = ALIGN(4096);
+        . = ALIGN(PAGE_SIZE);
         _edata = .;
         }
 
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .bss : {
         __bss_start = .;
         *(.bss)
         __bss_stop = .;
         }
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   _end = . ;
 }
diff --git a/arch/ppc64/lib/Makefile b/arch/ppc64/lib/Makefile
index 0b6e967de948..42d5295bf345 100644
--- a/arch/ppc64/lib/Makefile
+++ b/arch/ppc64/lib/Makefile
@@ -2,17 +2,4 @@
 # Makefile for ppc64-specific library files..
 #
 
-lib-y := checksum.o string.o strcase.o
-lib-y += copypage.o memcpy.o copyuser.o usercopy.o
-
-# Lock primitives are defined as no-ops in include/linux/spinlock.h
-# for non-SMP configs. Don't build the real versions.
-
-lib-$(CONFIG_SMP) += locks.o
-
-# e2a provides EBCDIC to ASCII conversions.
-ifdef CONFIG_PPC_ISERIES
-obj-y += e2a.o
-endif
-
-lib-$(CONFIG_DEBUG_KERNEL) += sstep.o
+lib-y := string.o
diff --git a/arch/ppc64/lib/string.S b/arch/ppc64/lib/string.S
index 813587e5c2ec..e21a0038a4d6 100644
--- a/arch/ppc64/lib/string.S
+++ b/arch/ppc64/lib/string.S
@@ -65,112 +65,6 @@ _GLOBAL(strlen)
         subf    r3,r3,r4
         blr
 
-_GLOBAL(memset)
-        neg     r0,r3
-        rlwimi  r4,r4,8,16,23
-        andi.   r0,r0,7                 /* # bytes to be 8-byte aligned */
-        rlwimi  r4,r4,16,0,15
-        cmplw   cr1,r5,r0               /* do we get that far? */
-        rldimi  r4,r4,32,0
-        mtcrf   1,r0
-        mr      r6,r3
-        blt     cr1,8f
-        beq+    3f                      /* if already 8-byte aligned */
-        subf    r5,r0,r5
-        bf      31,1f
-        stb     r4,0(r6)
-        addi    r6,r6,1
-1:      bf      30,2f
-        sth     r4,0(r6)
-        addi    r6,r6,2
-2:      bf      29,3f
-        stw     r4,0(r6)
-        addi    r6,r6,4
-3:      srdi.   r0,r5,6
-        clrldi  r5,r5,58
-        mtctr   r0
-        beq     5f
-4:      std     r4,0(r6)
-        std     r4,8(r6)
-        std     r4,16(r6)
-        std     r4,24(r6)
-        std     r4,32(r6)
-        std     r4,40(r6)
-        std     r4,48(r6)
-        std     r4,56(r6)
-        addi    r6,r6,64
-        bdnz    4b
-5:      srwi.   r0,r5,3
-        clrlwi  r5,r5,29
-        mtcrf   1,r0
-        beq     8f
-        bf      29,6f
-        std     r4,0(r6)
-        std     r4,8(r6)
-        std     r4,16(r6)
-        std     r4,24(r6)
-        addi    r6,r6,32
-6:      bf      30,7f
-        std     r4,0(r6)
-        std     r4,8(r6)
-        addi    r6,r6,16
-7:      bf      31,8f
-        std     r4,0(r6)
-        addi    r6,r6,8
-8:      cmpwi   r5,0
-        mtcrf   1,r5
-        beqlr+
-        bf      29,9f
-        stw     r4,0(r6)
-        addi    r6,r6,4
-9:      bf      30,10f
-        sth     r4,0(r6)
-        addi    r6,r6,2
-10:     bflr    31
-        stb     r4,0(r6)
-        blr
-
-_GLOBAL(memmove)
-        cmplw   0,r3,r4
-        bgt     .backwards_memcpy
-        b       .memcpy
-
-_GLOBAL(backwards_memcpy)
-        rlwinm. r7,r5,32-3,3,31         /* r0 = r5 >> 3 */
-        add     r6,r3,r5
-        add     r4,r4,r5
-        beq     2f
-        andi.   r0,r6,3
-        mtctr   r7
-        bne     5f
-1:      lwz     r7,-4(r4)
-        lwzu    r8,-8(r4)
-        stw     r7,-4(r6)
-        stwu    r8,-8(r6)
-        bdnz    1b
-        andi.   r5,r5,7
-2:      cmplwi  0,r5,4
-        blt     3f
-        lwzu    r0,-4(r4)
-        subi    r5,r5,4
-        stwu    r0,-4(r6)
-3:      cmpwi   0,r5,0
-        beqlr
-        mtctr   r5
-4:      lbzu    r0,-1(r4)
-        stbu    r0,-1(r6)
-        bdnz    4b
-        blr
-5:      mtctr   r0
-6:      lbzu    r7,-1(r4)
-        stbu    r7,-1(r6)
-        bdnz    6b
-        subf    r5,r0,r5
-        rlwinm. r7,r5,32-3,3,31
-        beq     2b
-        mtctr   r7
-        b       1b
-        
 _GLOBAL(memcmp)
         cmpwi   0,r5,0
         ble-    2f
diff --git a/arch/ppc64/mm/Makefile b/arch/ppc64/mm/Makefile
deleted file mode 100644
index 3695d00d347f..000000000000
--- a/arch/ppc64/mm/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile for the linux ppc-specific parts of the memory manager.
-#
-
-EXTRA_CFLAGS += -mno-minimal-toc
-
-obj-y := fault.o init.o imalloc.o hash_utils.o hash_low.o tlb.o \
-        slb_low.o slb.o stab.o mmap.o
-obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o
-obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
-obj-$(CONFIG_PPC_MULTIPLATFORM) += hash_native.o
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
deleted file mode 100644
index e2bd7776622f..000000000000
--- a/arch/ppc64/mm/init.c
+++ /dev/null
@@ -1,950 +0,0 @@
-/*
- *  PowerPC version 
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
- *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
- *    Copyright (C) 1996 Paul Mackerras
- *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
- *
- *  Derived from "arch/i386/mm/init.c"
- *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
- *
- *  Dave Engebretsen <engebret@us.ibm.com>
- *      Rework for PPC64 port.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/bootmem.h>
-#include <linux/highmem.h>
-#include <linux/idr.h>
-#include <linux/nodemask.h>
-#include <linux/module.h>
-
-#include <asm/pgalloc.h>
-#include <asm/page.h>
-#include <asm/prom.h>
-#include <asm/lmb.h>
-#include <asm/rtas.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/uaccess.h>
-#include <asm/smp.h>
-#include <asm/machdep.h>
-#include <asm/tlb.h>
-#include <asm/eeh.h>
-#include <asm/processor.h>
-#include <asm/mmzone.h>
-#include <asm/cputable.h>
-#include <asm/ppcdebug.h>
-#include <asm/sections.h>
-#include <asm/system.h>
-#include <asm/iommu.h>
-#include <asm/abs_addr.h>
-#include <asm/vdso.h>
-#include <asm/imalloc.h>
-
-#if PGTABLE_RANGE > USER_VSID_RANGE
-#warning Limited user VSID range means pagetable space is wasted
-#endif
-
-#if (TASK_SIZE_USER64 < PGTABLE_RANGE) && (TASK_SIZE_USER64 < USER_VSID_RANGE)
-#warning TASK_SIZE is smaller than it needs to be.
-#endif
-
-int mem_init_done;
-unsigned long ioremap_bot = IMALLOC_BASE;
-static unsigned long phbs_io_bot = PHBS_IO_BASE;
-
-extern pgd_t swapper_pg_dir[];
-extern struct task_struct *current_set[NR_CPUS];
-
-unsigned long klimit = (unsigned long)_end;
-
-unsigned long _SDR1=0;
-unsigned long _ASR=0;
-
-/* max amount of RAM to use */
-unsigned long __max_memory;
-
-/* info on what we think the IO hole is */
-unsigned long   io_hole_start;
-unsigned long   io_hole_size;
-
-void show_mem(void)
-{
-        unsigned long total = 0, reserved = 0;
-        unsigned long shared = 0, cached = 0;
-        struct page *page;
-        pg_data_t *pgdat;
-        unsigned long i;
-
-        printk("Mem-info:\n");
-        show_free_areas();
-        printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
-        for_each_pgdat(pgdat) {
-                unsigned long flags;
-                pgdat_resize_lock(pgdat, &flags);
-                for (i = 0; i < pgdat->node_spanned_pages; i++) {
-                        page = pgdat_page_nr(pgdat, i);
-                        total++;
-                        if (PageReserved(page))
-                                reserved++;
-                        else if (PageSwapCache(page))
-                                cached++;
-                        else if (page_count(page))
-                                shared += page_count(page) - 1;
-                }
-                pgdat_resize_unlock(pgdat, &flags);
-        }
-        printk("%ld pages of RAM\n", total);
-        printk("%ld reserved pages\n", reserved);
-        printk("%ld pages shared\n", shared);
-        printk("%ld pages swap cached\n", cached);
-}
-
-#ifdef CONFIG_PPC_ISERIES
-
-void __iomem *ioremap(unsigned long addr, unsigned long size)
-{
-        return (void __iomem *)addr;
-}
-
-extern void __iomem *__ioremap(unsigned long addr, unsigned long size,
-                       unsigned long flags)
-{
-        return (void __iomem *)addr;
-}
-
-void iounmap(volatile void __iomem *addr)
-{
-        return;
-}
-
-#else
-
-/*
- * map_io_page currently only called by __ioremap
- * map_io_page adds an entry to the ioremap page table
- * and adds an entry to the HPT, possibly bolting it
- */
-static int map_io_page(unsigned long ea, unsigned long pa, int flags)
-{
-        pgd_t *pgdp;
-        pud_t *pudp;
-        pmd_t *pmdp;
-        pte_t *ptep;
-        unsigned long vsid;
-
-        if (mem_init_done) {
-                pgdp = pgd_offset_k(ea);
-                pudp = pud_alloc(&init_mm, pgdp, ea);
-                if (!pudp)
-                        return -ENOMEM;
-                pmdp = pmd_alloc(&init_mm, pudp, ea);
-                if (!pmdp)
-                        return -ENOMEM;
-                ptep = pte_alloc_kernel(pmdp, ea);
-                if (!ptep)
-                        return -ENOMEM;
-                set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
-                                                          __pgprot(flags)));
-        } else {
-                unsigned long va, vpn, hash, hpteg;
-
-                /*
-                 * If the mm subsystem is not fully up, we cannot create a
-                 * linux page table entry for this mapping.  Simply bolt an
-                 * entry in the hardware page table.
-                 */
-                vsid = get_kernel_vsid(ea);
-                va = (vsid << 28) | (ea & 0xFFFFFFF);
-                vpn = va >> PAGE_SHIFT;
-
-                hash = hpt_hash(vpn, 0);
-
-                hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
-
-                /* Panic if a pte grpup is full */
-                if (ppc_md.hpte_insert(hpteg, va, pa >> PAGE_SHIFT,
-                                       HPTE_V_BOLTED,
-                                       _PAGE_NO_CACHE|_PAGE_GUARDED|PP_RWXX)
-                    == -1) {
-                        panic("map_io_page: could not insert mapping");
-                }
-        }
-        return 0;
-}
-
-
-static void __iomem * __ioremap_com(unsigned long addr, unsigned long pa,
-                            unsigned long ea, unsigned long size,
-                            unsigned long flags)
-{
-        unsigned long i;
-
-        if ((flags & _PAGE_PRESENT) == 0)
-                flags |= pgprot_val(PAGE_KERNEL);
-
-        for (i = 0; i < size; i += PAGE_SIZE)
-                if (map_io_page(ea+i, pa+i, flags))
-                        return NULL;
-
-        return (void __iomem *) (ea + (addr & ~PAGE_MASK));
-}
-
-
-void __iomem *
-ioremap(unsigned long addr, unsigned long size)
-{
-        return __ioremap(addr, size, _PAGE_NO_CACHE | _PAGE_GUARDED);
-}
-
-void __iomem * __ioremap(unsigned long addr, unsigned long size,
-                         unsigned long flags)
-{
-        unsigned long pa, ea;
-        void __iomem *ret;
-
-        /*
-         * Choose an address to map it to.
-         * Once the imalloc system is running, we use it.
-         * Before that, we map using addresses going
-         * up from ioremap_bot.  imalloc will use
-         * the addresses from ioremap_bot through
-         * IMALLOC_END
-         * 
-         */
-        pa = addr & PAGE_MASK;
-        size = PAGE_ALIGN(addr + size) - pa;
-
-        if (size == 0)
-                return NULL;
-
-        if (mem_init_done) {
-                struct vm_struct *area;
-                area = im_get_free_area(size);
-                if (area == NULL)
-                        return NULL;
-                ea = (unsigned long)(area->addr);
-                ret = __ioremap_com(addr, pa, ea, size, flags);
-                if (!ret)
-                        im_free(area->addr);
-        } else {
-                ea = ioremap_bot;
-                ret = __ioremap_com(addr, pa, ea, size, flags);
-                if (ret)
-                        ioremap_bot += size;
-        }
-        return ret;
-}
-
-#define IS_PAGE_ALIGNED(_val) ((_val) == ((_val) & PAGE_MASK))
-
-int __ioremap_explicit(unsigned long pa, unsigned long ea,
-                       unsigned long size, unsigned long flags)
-{
-        struct vm_struct *area;
-        void __iomem *ret;
-        
-        /* For now, require page-aligned values for pa, ea, and size */
-        if (!IS_PAGE_ALIGNED(pa) || !IS_PAGE_ALIGNED(ea) ||
-            !IS_PAGE_ALIGNED(size)) {
-                printk(KERN_ERR "unaligned value in %s\n", __FUNCTION__);
-                return 1;
-        }
-        
-        if (!mem_init_done) {
-                /* Two things to consider in this case:
-                 * 1) No records will be kept (imalloc, etc) that the region
-                 *    has been remapped
-                 * 2) It won't be easy to iounmap() the region later (because
-                 *    of 1)
-                 */
-                ;
-        } else {
-                area = im_get_area(ea, size,
-                        IM_REGION_UNUSED|IM_REGION_SUBSET|IM_REGION_EXISTS);
-                if (area == NULL) {
-                        /* Expected when PHB-dlpar is in play */
-                        return 1;
-                }
-                if (ea != (unsigned long) area->addr) {
-                        printk(KERN_ERR "unexpected addr return from "
-                               "im_get_area\n");
-                        return 1;
-                }
-        }
-        
-        ret = __ioremap_com(pa, pa, ea, size, flags);
-        if (ret == NULL) {
-                printk(KERN_ERR "ioremap_explicit() allocation failure !\n");
-                return 1;
-        }
-        if (ret != (void *) ea) {
-                printk(KERN_ERR "__ioremap_com() returned unexpected addr\n");
-                return 1;
-        }
-
-        return 0;
-}
-
-/*  
- * Unmap an IO region and remove it from imalloc'd list.
- * Access to IO memory should be serialized by driver.
- * This code is modeled after vmalloc code - unmap_vm_area()
- *
- * XXX  what about calls before mem_init_done (ie python_countermeasures())
- */
-void iounmap(volatile void __iomem *token)
-{
-        void *addr;
-
-        if (!mem_init_done)
-                return;
-        
-        addr = (void *) ((unsigned long __force) token & PAGE_MASK);
-
-        im_free(addr);
-}
-
-static int iounmap_subset_regions(unsigned long addr, unsigned long size)
-{
-        struct vm_struct *area;
-
-        /* Check whether subsets of this region exist */
-        area = im_get_area(addr, size, IM_REGION_SUPERSET);
-        if (area == NULL)
-                return 1;
-
-        while (area) {
-                iounmap((void __iomem *) area->addr);
-                area = im_get_area(addr, size,
-                                IM_REGION_SUPERSET);
-        }
-
-        return 0;
-}
-
-int iounmap_explicit(volatile void __iomem *start, unsigned long size)
-{
-        struct vm_struct *area;
-        unsigned long addr;
-        int rc;
-        
-        addr = (unsigned long __force) start & PAGE_MASK;
-
-        /* Verify that the region either exists or is a subset of an existing
-         * region.  In the latter case, split the parent region to create 
-         * the exact region 
-         */
-        area = im_get_area(addr, size, 
-                            IM_REGION_EXISTS | IM_REGION_SUBSET);
-        if (area == NULL) {
-                /* Determine whether subset regions exist.  If so, unmap */
-                rc = iounmap_subset_regions(addr, size);
-                if (rc) {
-                        printk(KERN_ERR
-                               "%s() cannot unmap nonexistent range 0x%lx\n",
-                                __FUNCTION__, addr);
-                        return 1;
-                }
-        } else {
-                iounmap((void __iomem *) area->addr);
-        }
-        /*
-         * FIXME! This can't be right:
-        iounmap(area->addr);
-         * Maybe it should be "iounmap(area);"
-         */
-        return 0;
-}
-
-#endif
-
-EXPORT_SYMBOL(ioremap);
-EXPORT_SYMBOL(__ioremap);
-EXPORT_SYMBOL(iounmap);
-
-void free_initmem(void)
-{
-        unsigned long addr;
-
-        addr = (unsigned long)__init_begin;
-        for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
-                memset((void *)addr, 0xcc, PAGE_SIZE);
-                ClearPageReserved(virt_to_page(addr));
-                set_page_count(virt_to_page(addr), 1);
-                free_page(addr);
-                totalram_pages++;
-        }
-        printk ("Freeing unused kernel memory: %luk freed\n",
-                ((unsigned long)__init_end - (unsigned long)__init_begin) >> 10);
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-        if (start < end)
-                printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-        for (; start < end; start += PAGE_SIZE) {
-                ClearPageReserved(virt_to_page(start));
-                set_page_count(virt_to_page(start), 1);
-                free_page(start);
-                totalram_pages++;
-        }
-}
-#endif
-
-static DEFINE_SPINLOCK(mmu_context_lock);
-static DEFINE_IDR(mmu_context_idr);
-
-int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
-{
-        int index;
-        int err;
-
-again:
-        if (!idr_pre_get(&mmu_context_idr, GFP_KERNEL))
-                return -ENOMEM;
-
-        spin_lock(&mmu_context_lock);
-        err = idr_get_new_above(&mmu_context_idr, NULL, 1, &index);
-        spin_unlock(&mmu_context_lock);
-
-        if (err == -EAGAIN)
-                goto again;
-        else if (err)
-                return err;
-
-        if (index > MAX_CONTEXT) {
-                idr_remove(&mmu_context_idr, index);
-                return -ENOMEM;
-        }
-
-        mm->context.id = index;
-
-        return 0;
-}
-
-void destroy_context(struct mm_struct *mm)
-{
-        spin_lock(&mmu_context_lock);
-        idr_remove(&mmu_context_idr, mm->context.id);
-        spin_unlock(&mmu_context_lock);
-
-        mm->context.id = NO_CONTEXT;
-}
-
-/*
- * Do very early mm setup.
- */
-void __init mm_init_ppc64(void)
-{
-#ifndef CONFIG_PPC_ISERIES
-        unsigned long i;
-#endif
-
-        ppc64_boot_msg(0x100, "MM Init");
-
-        /* This is the story of the IO hole... please, keep seated,
-         * unfortunately, we are out of oxygen masks at the moment.
-         * So we need some rough way to tell where your big IO hole
-         * is. On pmac, it's between 2G and 4G, on POWER3, it's around
-         * that area as well, on POWER4 we don't have one, etc...
-         * We need that as a "hint" when sizing the TCE table on POWER3
-         * So far, the simplest way that seem work well enough for us it
-         * to just assume that the first discontinuity in our physical
-         * RAM layout is the IO hole. That may not be correct in the future
-         * (and isn't on iSeries but then we don't care ;)
-         */
-
-#ifndef CONFIG_PPC_ISERIES
-        for (i = 1; i < lmb.memory.cnt; i++) {
-                unsigned long base, prevbase, prevsize;
-
-                prevbase = lmb.memory.region[i-1].base;
-                prevsize = lmb.memory.region[i-1].size;
-                base = lmb.memory.region[i].base;
-                if (base > (prevbase + prevsize)) {
-                        io_hole_start = prevbase + prevsize;
-                        io_hole_size = base  - (prevbase + prevsize);
-                        break;
-                }
-        }
-#endif /* CONFIG_PPC_ISERIES */
-        if (io_hole_start)
-                printk("IO Hole assumed to be %lx -> %lx\n",
-                       io_hole_start, io_hole_start + io_hole_size - 1);
-
-        ppc64_boot_msg(0x100, "MM Init Done");
-}
-
-/*
- * This is called by /dev/mem to know if a given address has to
- * be mapped non-cacheable or not
- */
-int page_is_ram(unsigned long pfn)
-{
-        int i;
-        unsigned long paddr = (pfn << PAGE_SHIFT);
-
-        for (i=0; i < lmb.memory.cnt; i++) {
-                unsigned long base;
-
-                base = lmb.memory.region[i].base;
-
-                if ((paddr >= base) &&
-                        (paddr < (base + lmb.memory.region[i].size))) {
-                        return 1;
-                }
-        }
-
-        return 0;
-}
-EXPORT_SYMBOL(page_is_ram);
-
-/*
- * Initialize the bootmem system and give it all the memory we
- * have available.
- */
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-void __init do_init_bootmem(void)
-{
-        unsigned long i;
-        unsigned long start, bootmap_pages;
-        unsigned long total_pages = lmb_end_of_DRAM() >> PAGE_SHIFT;
-        int boot_mapsize;
-
-        /*
-         * Find an area to use for the bootmem bitmap.  Calculate the size of
-         * bitmap required as (Total Memory) / PAGE_SIZE / BITS_PER_BYTE.
-         * Add 1 additional page in case the address isn't page-aligned.
-         */
-        bootmap_pages = bootmem_bootmap_pages(total_pages);
-
-        start = lmb_alloc(bootmap_pages<<PAGE_SHIFT, PAGE_SIZE);
-        BUG_ON(!start);
-
-        boot_mapsize = init_bootmem(start >> PAGE_SHIFT, total_pages);
-
-        max_pfn = max_low_pfn;
-
-        /* Add all physical memory to the bootmem map, mark each area
-         * present.
-         */
-        for (i=0; i < lmb.memory.cnt; i++)
-                free_bootmem(lmb.memory.region[i].base,
-                             lmb_size_bytes(&lmb.memory, i));
-
-        /* reserve the sections we're already using */
-        for (i=0; i < lmb.reserved.cnt; i++)
-                reserve_bootmem(lmb.reserved.region[i].base,
-                                lmb_size_bytes(&lmb.reserved, i));
-
-        for (i=0; i < lmb.memory.cnt; i++)
-                memory_present(0, lmb_start_pfn(&lmb.memory, i),
-                               lmb_end_pfn(&lmb.memory, i));
-}
-
-/*
- * paging_init() sets up the page tables - in fact we've already done this.
- */
-void __init paging_init(void)
-{
-        unsigned long zones_size[MAX_NR_ZONES];
-        unsigned long zholes_size[MAX_NR_ZONES];
-        unsigned long total_ram = lmb_phys_mem_size();
-        unsigned long top_of_ram = lmb_end_of_DRAM();
-
-        printk(KERN_INFO "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
-               top_of_ram, total_ram);
-        printk(KERN_INFO "Memory hole size: %ldMB\n",
-               (top_of_ram - total_ram) >> 20);
-        /*
-         * All pages are DMA-able so we put them all in the DMA zone.
-         */
-        memset(zones_size, 0, sizeof(zones_size));
-        memset(zholes_size, 0, sizeof(zholes_size));
-
-        zones_size[ZONE_DMA] = top_of_ram >> PAGE_SHIFT;
-        zholes_size[ZONE_DMA] = (top_of_ram - total_ram) >> PAGE_SHIFT;
-
-        free_area_init_node(0, NODE_DATA(0), zones_size,
-                            __pa(PAGE_OFFSET) >> PAGE_SHIFT, zholes_size);
-}
-#endif /* ! CONFIG_NEED_MULTIPLE_NODES */
-
-static struct kcore_list kcore_vmem;
-
-static int __init setup_kcore(void)
-{
-        int i;
-
-        for (i=0; i < lmb.memory.cnt; i++) {
-                unsigned long base, size;
-                struct kcore_list *kcore_mem;
-
-                base = lmb.memory.region[i].base;
-                size = lmb.memory.region[i].size;
-
-                /* GFP_ATOMIC to avoid might_sleep warnings during boot */
-                kcore_mem = kmalloc(sizeof(struct kcore_list), GFP_ATOMIC);
-                if (!kcore_mem)
-                        panic("mem_init: kmalloc failed\n");
-
-                kclist_add(kcore_mem, __va(base), size);
-        }
-
-        kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
-
-        return 0;
-}
-module_init(setup_kcore);
-
-void __init mem_init(void)
-{
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-        int nid;
-#endif
-        pg_data_t *pgdat;
-        unsigned long i;
-        struct page *page;
-        unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize;
-
-        num_physpages = max_low_pfn;    /* RAM is assumed contiguous */
-        high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-        for_each_online_node(nid) {
-                if (NODE_DATA(nid)->node_spanned_pages != 0) {
-                        printk("freeing bootmem node %x\n", nid);
-                        totalram_pages +=
-                                free_all_bootmem_node(NODE_DATA(nid));
-                }
-        }
-#else
-        max_mapnr = num_physpages;
-        totalram_pages += free_all_bootmem();
-#endif
-
-        for_each_pgdat(pgdat) {
-                unsigned long flags;
-                pgdat_resize_lock(pgdat, &flags);
-                for (i = 0; i < pgdat->node_spanned_pages; i++) {
-                        page = pgdat_page_nr(pgdat, i);
-                        if (PageReserved(page))
-                                reservedpages++;
-                }
-                pgdat_resize_unlock(pgdat, &flags);
-        }
-
-        codesize = (unsigned long)&_etext - (unsigned long)&_stext;
-        initsize = (unsigned long)&__init_end - (unsigned long)&__init_begin;
-        datasize = (unsigned long)&_edata - (unsigned long)&__init_end;
-        bsssize = (unsigned long)&__bss_stop - (unsigned long)&__bss_start;
-
-        printk(KERN_INFO "Memory: %luk/%luk available (%luk kernel code, "
-               "%luk reserved, %luk data, %luk bss, %luk init)\n",
-                (unsigned long)nr_free_pages() << (PAGE_SHIFT-10),
-                num_physpages << (PAGE_SHIFT-10),
-                codesize >> 10,
-                reservedpages << (PAGE_SHIFT-10),
-                datasize >> 10,
-                bsssize >> 10,
-                initsize >> 10);
-
-        mem_init_done = 1;
-
-        /* Initialize the vDSO */
-        vdso_init();
-}
-
-/*
- * This is called when a page has been modified by the kernel.
- * It just marks the page as not i-cache clean.  We do the i-cache
- * flush later when the page is given to a user process, if necessary.
- */
-void flush_dcache_page(struct page *page)
-{
-        if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
-                return;
-        /* avoid an atomic op if possible */
-        if (test_bit(PG_arch_1, &page->flags))
-                clear_bit(PG_arch_1, &page->flags);
-}
-EXPORT_SYMBOL(flush_dcache_page);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
-        clear_page(page);
-
-        if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
-                return;
-        /*
-         * We shouldnt have to do this, but some versions of glibc
-         * require it (ld.so assumes zero filled pages are icache clean)
-         * - Anton
-         */
-
-        /* avoid an atomic op if possible */
-        if (test_bit(PG_arch_1, &pg->flags))
-                clear_bit(PG_arch_1, &pg->flags);
-}
-EXPORT_SYMBOL(clear_user_page);
-
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
-                    struct page *pg)
-{
-        copy_page(vto, vfrom);
-
-        /*
-         * We should be able to use the following optimisation, however
-         * there are two problems.
-         * Firstly a bug in some versions of binutils meant PLT sections
-         * were not marked executable.
-         * Secondly the first word in the GOT section is blrl, used
-         * to establish the GOT address. Until recently the GOT was
-         * not marked executable.
-         * - Anton
-         */
-#if 0
-        if (!vma->vm_file && ((vma->vm_flags & VM_EXEC) == 0))
-                return;
-#endif
-
-        if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
-                return;
-
-        /* avoid an atomic op if possible */
-        if (test_bit(PG_arch_1, &pg->flags))
-                clear_bit(PG_arch_1, &pg->flags);
-}
-
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
-                             unsigned long addr, int len)
-{
-        unsigned long maddr;
-
-        maddr = (unsigned long)page_address(page) + (addr & ~PAGE_MASK);
-        flush_icache_range(maddr, maddr + len);
-}
-EXPORT_SYMBOL(flush_icache_user_range);
-
-/*
- * This is called at the end of handling a user page fault, when the
- * fault has been handled by updating a PTE in the linux page tables.
- * We use it to preload an HPTE into the hash table corresponding to
- * the updated linux PTE.
- * 
- * This must always be called with the mm->page_table_lock held
- */
-void update_mmu_cache(struct vm_area_struct *vma, unsigned long ea,
-                      pte_t pte)
-{
-        unsigned long vsid;
-        void *pgdir;
-        pte_t *ptep;
-        int local = 0;
-        cpumask_t tmp;
-        unsigned long flags;
-
-        /* handle i-cache coherency */
-        if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE) &&
-            !cpu_has_feature(CPU_FTR_NOEXECUTE)) {
-                unsigned long pfn = pte_pfn(pte);
-                if (pfn_valid(pfn)) {
-                        struct page *page = pfn_to_page(pfn);
-                        if (!PageReserved(page)
-                            && !test_bit(PG_arch_1, &page->flags)) {
-                                __flush_dcache_icache(page_address(page));
-                                set_bit(PG_arch_1, &page->flags);
-                        }
-                }
-        }
-
-        /* We only want HPTEs for linux PTEs that have _PAGE_ACCESSED set */
-        if (!pte_young(pte))
-                return;
-
-        pgdir = vma->vm_mm->pgd;
-        if (pgdir == NULL)
-                return;
-
-        ptep = find_linux_pte(pgdir, ea);
-        if (!ptep)
-                return;
-
-        vsid = get_vsid(vma->vm_mm->context.id, ea);
-
-        local_irq_save(flags);
-        tmp = cpumask_of_cpu(smp_processor_id());
-        if (cpus_equal(vma->vm_mm->cpu_vm_mask, tmp))
-                local = 1;
-
-        __hash_page(ea, 0, vsid, ptep, 0x300, local);
-        local_irq_restore(flags);
-}
-
-void __iomem * reserve_phb_iospace(unsigned long size)
-{
-        void __iomem *virt_addr;
-                
-        if (phbs_io_bot >= IMALLOC_BASE) 
-                panic("reserve_phb_iospace(): phb io space overflow\n");
-                        
-        virt_addr = (void __iomem *) phbs_io_bot;
-        phbs_io_bot += size;
-
-        return virt_addr;
-}
-
-static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
-{
-        memset(addr, 0, kmem_cache_size(cache));
-}
-
-static const int pgtable_cache_size[2] = {
-        PTE_TABLE_SIZE, PMD_TABLE_SIZE
-};
-static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
-        "pgd_pte_cache", "pud_pmd_cache",
-};
-
-kmem_cache_t *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
-
-void pgtable_cache_init(void)
-{
-        int i;
-
-        BUILD_BUG_ON(PTE_TABLE_SIZE != pgtable_cache_size[PTE_CACHE_NUM]);
-        BUILD_BUG_ON(PMD_TABLE_SIZE != pgtable_cache_size[PMD_CACHE_NUM]);
-        BUILD_BUG_ON(PUD_TABLE_SIZE != pgtable_cache_size[PUD_CACHE_NUM]);
-        BUILD_BUG_ON(PGD_TABLE_SIZE != pgtable_cache_size[PGD_CACHE_NUM]);
-
-        for (i = 0; i < ARRAY_SIZE(pgtable_cache_size); i++) {
-                int size = pgtable_cache_size[i];
-                const char *name = pgtable_cache_name[i];
-
-                pgtable_cache[i] = kmem_cache_create(name,
-                                                     size, size,
-                                                     SLAB_HWCACHE_ALIGN
-                                                     | SLAB_MUST_HWCACHE_ALIGN,
-                                                     zero_ctor,
-                                                     NULL);
-                if (! pgtable_cache[i])
-                        panic("pgtable_cache_init(): could not create %s!\n",
-                              name);
-        }
-}
-
-pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr,
-                              unsigned long size, pgprot_t vma_prot)
-{
-        if (ppc_md.phys_mem_access_prot)
-                return ppc_md.phys_mem_access_prot(file, addr, size, vma_prot);
-
-        if (!page_is_ram(addr >> PAGE_SHIFT))
-                vma_prot = __pgprot(pgprot_val(vma_prot)
-                                    | _PAGE_GUARDED | _PAGE_NO_CACHE);
-        return vma_prot;
-}
-EXPORT_SYMBOL(phys_mem_access_prot);
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-
-void online_page(struct page *page)
-{
-        ClearPageReserved(page);
-        free_cold_page(page);
-        totalram_pages++;
-        num_physpages++;
-}
-
-/*
- * This works only for the non-NUMA case.  Later, we'll need a lookup
- * to convert from real physical addresses to nid, that doesn't use
- * pfn_to_nid().
- */
-int __devinit add_memory(u64 start, u64 size)
-{
-        struct pglist_data *pgdata = NODE_DATA(0);
-        struct zone *zone;
-        unsigned long start_pfn = start >> PAGE_SHIFT;
-        unsigned long nr_pages = size >> PAGE_SHIFT;
-
-        /* this should work for most non-highmem platforms */
-        zone = pgdata->node_zones;
-
-        return __add_pages(zone, start_pfn, nr_pages);
-
-        return 0;
-}
-
-/*
- * First pass at this code will check to determine if the remove
- * request is within the RMO.  Do not allow removal within the RMO.
- */
-int __devinit remove_memory(u64 start, u64 size)
-{
-        struct zone *zone;
-        unsigned long start_pfn, end_pfn, nr_pages;
-
-        start_pfn = start >> PAGE_SHIFT;
-        nr_pages = size >> PAGE_SHIFT;
-        end_pfn = start_pfn + nr_pages;
-
-        printk("%s(): Attempting to remove memoy in range "
-                        "%lx to %lx\n", __func__, start, start+size);
-        /*
-         * check for range within RMO
-         */
-        zone = page_zone(pfn_to_page(start_pfn));
-
-        printk("%s(): memory will be removed from "
-                        "the %s zone\n", __func__, zone->name);
-
-        /*
-         * not handling removing memory ranges that
-         * overlap multiple zones yet
-         */
-        if (end_pfn > (zone->zone_start_pfn + zone->spanned_pages))
-                goto overlap;
-
-        /* make sure it is NOT in RMO */
-        if ((start < lmb.rmo_size) || ((start+size) < lmb.rmo_size)) {
-                printk("%s(): range to be removed must NOT be in RMO!\n",
-                        __func__);
-                goto in_rmo;
-        }
-
-        return __remove_pages(zone, start_pfn, nr_pages);
-
-overlap:
-        printk("%s(): memory range to be removed overlaps "
-                "multiple zones!!!\n", __func__);
-in_rmo:
-        return -1;
-}
-#endif /* CONFIG_MEMORY_HOTPLUG */
diff --git a/arch/ppc64/oprofile/Kconfig b/arch/ppc64/oprofile/Kconfig
deleted file mode 100644
index 5ade19801b97..000000000000
--- a/arch/ppc64/oprofile/Kconfig
+++ /dev/null
@@ -1,23 +0,0 @@
-
-menu "Profiling support"
-        depends on EXPERIMENTAL
-
-config PROFILING
-        bool "Profiling support (EXPERIMENTAL)"
-        help
-          Say Y here to enable the extended profiling support mechanisms used
-          by profilers such as OProfile.
-          
-
-config OPROFILE
-        tristate "OProfile system profiling (EXPERIMENTAL)"
-        depends on PROFILING
-        help
-          OProfile is a profiling system capable of profiling the
-          whole system, include the kernel, kernel modules, libraries,
-          and applications.
-
-          If unsure, say N.
-
-endmenu
-
diff --git a/arch/ppc64/oprofile/Makefile b/arch/ppc64/oprofile/Makefile
deleted file mode 100644
index 162dbf06c142..000000000000
--- a/arch/ppc64/oprofile/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS := $(addprefix ../../../drivers/oprofile/, \
-                oprof.o cpu_buffer.o buffer_sync.o \
-                event_buffer.o oprofile_files.o \
-                oprofilefs.o oprofile_stats.o \
-                timer_int.o )
-
-oprofile-y := $(DRIVER_OBJS) common.o op_model_rs64.o op_model_power4.o
diff --git a/arch/ppc64/xmon/Makefile b/arch/ppc64/xmon/Makefile
deleted file mode 100644
index fb21a7088d3e..000000000000
--- a/arch/ppc64/xmon/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# Makefile for xmon
-
-EXTRA_CFLAGS += -mno-minimal-toc
-
-obj-y := start.o xmon.o ppc-dis.o ppc-opc.o subr_prf.o setjmp.o
diff --git a/arch/ppc64/xmon/setjmp.S b/arch/ppc64/xmon/setjmp.S
deleted file mode 100644
index 30ee643d557c..000000000000
--- a/arch/ppc64/xmon/setjmp.S
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 1996 Paul Mackerras.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- *
- * NOTE: assert(sizeof(buf) > 184)
- */
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-
-_GLOBAL(xmon_setjmp)
-        mflr    r0
-        std     r0,0(r3)
-        std     r1,8(r3)
-        std     r2,16(r3)
-        mfcr    r0
-        std     r0,24(r3)
-        std     r13,32(r3)
-        std     r14,40(r3)
-        std     r15,48(r3)
-        std     r16,56(r3)
-        std     r17,64(r3)
-        std     r18,72(r3)
-        std     r19,80(r3)
-        std     r20,88(r3)
-        std     r21,96(r3)
-        std     r22,104(r3)
-        std     r23,112(r3)
-        std     r24,120(r3)
-        std     r25,128(r3)
-        std     r26,136(r3)
-        std     r27,144(r3)
-        std     r28,152(r3)
-        std     r29,160(r3)
-        std     r30,168(r3)
-        std     r31,176(r3)
-        li      r3,0
-        blr
-
-_GLOBAL(xmon_longjmp)
-        cmpdi   r4,0
-        bne     1f
-        li      r4,1
-1:      ld      r13,32(r3)
-        ld      r14,40(r3)
-        ld      r15,48(r3)
-        ld      r16,56(r3)
-        ld      r17,64(r3)
-        ld      r18,72(r3)
-        ld      r19,80(r3)
-        ld      r20,88(r3)
-        ld      r21,96(r3)
-        ld      r22,104(r3)
-        ld      r23,112(r3)
-        ld      r24,120(r3)
-        ld      r25,128(r3)
-        ld      r26,136(r3)
-        ld      r27,144(r3)
-        ld      r28,152(r3)
-        ld      r29,160(r3)
-        ld      r30,168(r3)
-        ld      r31,176(r3)
-        ld      r0,24(r3)
-        mtcrf   56,r0
-        ld      r0,0(r3)
-        ld      r1,8(r3)
-        ld      r2,16(r3)
-        mtlr    r0
-        mr      r3,r4
-        blr
diff --git a/arch/s390/kernel/compat_ioctl.c b/arch/s390/kernel/compat_ioctl.c
index 24a1e9f069a7..6504c4e69986 100644
--- a/arch/s390/kernel/compat_ioctl.c
+++ b/arch/s390/kernel/compat_ioctl.c
@@ -18,6 +18,8 @@
 #include <asm/dasd.h>
 #include <asm/cmb.h>
 #include <asm/tape390.h>
+#include <asm/ccwdev.h>
+#include "../../../drivers/s390/char/raw3270.h"
 
 static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
                                 unsigned long arg, struct file *f)
@@ -62,6 +64,13 @@ COMPATIBLE_IOCTL(BIODASDCMFENABLE)
 COMPATIBLE_IOCTL(BIODASDCMFDISABLE)
 COMPATIBLE_IOCTL(BIODASDREADALLCMB)
 
+COMPATIBLE_IOCTL(TUBICMD)
+COMPATIBLE_IOCTL(TUBOCMD)
+COMPATIBLE_IOCTL(TUBGETI)
+COMPATIBLE_IOCTL(TUBGETO)
+COMPATIBLE_IOCTL(TUBSETMOD)
+COMPATIBLE_IOCTL(TUBGETMOD)
+
 COMPATIBLE_IOCTL(TAPE390_DISPLAY)
 
 /* s390 doesn't need handlers here */
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index 55654b6e16dc..039354d72348 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -485,7 +485,9 @@ start:
 #
         .org  0x10000
 startup:basr  %r13,0                     # get base
-.LPG1:  lctl  %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
+.LPG1:  l     %r1, .Lget_ipl_device_addr-.LPG1(%r13)
+        basr  %r14, %r1
+        lctl  %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
         la    %r12,_pstart-.LPG1(%r13)   # pointer to parameter area
                                          # move IPL device to lowcore
         mvc   __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12)
@@ -560,6 +562,9 @@ startup:basr  %r13,0                     # get base
         mr    %r2,%r1                   # mem size in bytes in %r3
         b     .Lfchunk-.LPG1(%r13)
 
+        .align 4
+.Lget_ipl_device_addr:
+        .long .Lget_ipl_device
 .Lpmask:
         .byte 0
 .align 8
@@ -755,6 +760,63 @@ _pstart:
         .global _pend
 _pend:  
 
+.Lget_ipl_device:
+        basr  %r12,0
+.LPG2:  l     %r1,0xb8                  # get sid
+        sll   %r1,15                    # test if subchannel is enabled
+        srl   %r1,31
+        ltr   %r1,%r1
+        bz    0(%r14)                   # subchannel disabled
+        l     %r1,0xb8
+        la    %r5,.Lipl_schib-.LPG2(%r12)
+        stsch 0(%r5)                    # get schib of subchannel
+        bnz   0(%r14)                   # schib not available
+        tm    5(%r5),0x01               # devno valid?
+        bno   0(%r14)
+        la    %r6,ipl_parameter_flags-.LPG2(%r12)
+        oi    3(%r6),0x01               # set flag
+        la    %r2,ipl_devno-.LPG2(%r12)
+        mvc   0(2,%r2),6(%r5)           # store devno
+        tm    4(%r5),0x80               # qdio capable device?
+        bno   0(%r14)
+        oi    3(%r6),0x02               # set flag
+
+        # copy ipl parameters
+
+        lhi   %r0,4096
+        l     %r2,20(%r0)               # get address of parameter list
+        lhi   %r3,IPL_PARMBLOCK_ORIGIN
+        st    %r3,20(%r0)
+        lhi   %r4,1
+        cr    %r2,%r3                   # start parameters < destination ?
+        jl    0f
+        lhi   %r1,1                     # copy direction is upwards
+        j     1f
+0:      lhi   %r1,-1                    # copy direction is downwards
+        ar    %r2,%r0
+        ar    %r3,%r0
+        ar    %r2,%r1
+        ar    %r3,%r1
+1:      mvc   0(1,%r3),0(%r2)           # finally copy ipl parameters
+        ar    %r3,%r1
+        ar    %r2,%r1
+        sr    %r0,%r4
+        jne   1b
+        b     0(%r14)
+
+        .align 4
+.Lipl_schib:
+        .rept 13
+        .long 0
+        .endr
+
+        .globl ipl_parameter_flags
+ipl_parameter_flags:
+        .long 0
+        .globl ipl_devno
+ipl_devno:
+        .word 0
+
 #ifdef CONFIG_SHARED_KERNEL
         .org   0x100000
 #endif
@@ -764,11 +826,11 @@ _pend:
 #
         .globl _stext
 _stext: basr  %r13,0                    # get base
-.LPG2:
+.LPG3:
 #
 # Setup stack
 #
-        l     %r15,.Linittu-.LPG2(%r13)
+        l     %r15,.Linittu-.LPG3(%r13)
         mvc   __LC_CURRENT(4),__TI_task(%r15)
         ahi   %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE
         st    %r15,__LC_KERNEL_STACK    # set end of kernel stack
@@ -782,8 +844,8 @@ _stext:	basr  %r13,0                    # get base
         lctl   %c0,%c15,0(%r15)
 
 #
-        lam    0,15,.Laregs-.LPG2(%r13) # load access regs needed by uaccess
-        l      %r14,.Lstart-.LPG2(%r13)
+        lam    0,15,.Laregs-.LPG3(%r13) # load access regs needed by uaccess
+        l      %r14,.Lstart-.LPG3(%r13)
         basr   %r14,%r14                # call start_kernel
 #
 # We returned from start_kernel ?!? PANIK
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index c9ff0404c875..193aafa72f54 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -484,6 +484,8 @@ start:
 startup:basr  %r13,0                     # get base
 .LPG1:  sll   %r13,1                     # remove high order bit
         srl   %r13,1
+        l     %r1,.Lget_ipl_device_addr-.LPG1(%r13)
+        basr  %r14,%r1
         lhi   %r1,1                      # mode 1 = esame
         slr   %r0,%r0                    # set cpuid to zero
         sigp  %r1,%r0,0x12               # switch to esame mode
@@ -556,6 +558,9 @@ startup:basr  %r13,0                     # get base
         mlgr  %r2,%r1                   # mem size in bytes in %r3
         b     .Lfchunk-.LPG1(%r13)
 
+        .align 4
+.Lget_ipl_device_addr:
+        .long .Lget_ipl_device
 .Lpmask:
         .byte 0
         .align 8
@@ -746,6 +751,63 @@ _pstart:
         .global _pend
 _pend:  
 
+.Lget_ipl_device:
+        basr  %r12,0
+.LPG2:  l     %r1,0xb8                  # get sid
+        sll   %r1,15                    # test if subchannel is enabled
+        srl   %r1,31
+        ltr   %r1,%r1
+        bz    0(%r14)                   # subchannel disabled
+        l     %r1,0xb8
+        la    %r5,.Lipl_schib-.LPG2(%r12)
+        stsch 0(%r5)                    # get schib of subchannel
+        bnz   0(%r14)                   # schib not available
+        tm    5(%r5),0x01               # devno valid?
+        bno   0(%r14)
+        la    %r6,ipl_parameter_flags-.LPG2(%r12)
+        oi    3(%r6),0x01               # set flag
+        la    %r2,ipl_devno-.LPG2(%r12)
+        mvc   0(2,%r2),6(%r5)           # store devno
+        tm    4(%r5),0x80               # qdio capable device?
+        bno   0(%r14)
+        oi    3(%r6),0x02               # set flag
+
+        # copy ipl parameters
+
+        lhi   %r0,4096
+        l     %r2,20(%r0)               # get address of parameter list
+        lhi   %r3,IPL_PARMBLOCK_ORIGIN
+        st    %r3,20(%r0)
+        lhi   %r4,1
+        cr    %r2,%r3                   # start parameters < destination ?
+        jl    0f
+        lhi   %r1,1                     # copy direction is upwards
+        j     1f
+0:      lhi   %r1,-1                    # copy direction is downwards
+        ar    %r2,%r0
+        ar    %r3,%r0
+        ar    %r2,%r1
+        ar    %r3,%r1
+1:      mvc   0(1,%r3),0(%r2)           # finally copy ipl parameters
+        ar    %r3,%r1
+        ar    %r2,%r1
+        sr    %r0,%r4
+        jne   1b
+        b     0(%r14)
+
+        .align 4
+.Lipl_schib:
+        .rept 13
+        .long 0
+        .endr
+
+        .globl ipl_parameter_flags
+ipl_parameter_flags:
+        .long 0
+        .globl ipl_devno
+ipl_devno:
+        .word 0
+
 #ifdef CONFIG_SHARED_KERNEL
         .org   0x100000
 #endif
@@ -755,7 +817,7 @@ _pend:
 #
         .globl _stext
 _stext: basr  %r13,0                    # get base
-.LPG2:
+.LPG3:
 #
 # Setup stack
 #
@@ -774,7 +836,7 @@ _stext:	basr  %r13,0                    # get base
         lctlg  %c0,%c15,0(%r15)
 
 #
-        lam    0,15,.Laregs-.LPG2(%r13) # load access regs needed by uaccess
+        lam    0,15,.Laregs-.LPG3(%r13) # load access regs needed by uaccess
         brasl  %r14,start_kernel        # go to C code
 #
 # We returned from start_kernel ?!? PANIK
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 5204778b8e5e..31e7b19348b7 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -36,6 +36,7 @@
 #include <linux/console.h>
 #include <linux/seq_file.h>
 #include <linux/kernel_stat.h>
+#include <linux/device.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -685,3 +686,188 @@ struct seq_operations cpuinfo_op = {
         .show   = show_cpuinfo,
 };
 
+#define DEFINE_IPL_ATTR(_name, _format, _value)                 \
+static ssize_t ipl_##_name##_show(struct subsystem *subsys,     \
+                char *page)                                     \
+{                                                               \
+        return sprintf(page, _format, _value);                  \
+}                                                               \
+static struct subsys_attribute ipl_##_name##_attr =             \
+        __ATTR(_name, S_IRUGO, ipl_##_name##_show, NULL);
+
+DEFINE_IPL_ATTR(wwpn, "0x%016llx\n", (unsigned long long)
+                IPL_PARMBLOCK_START->fcp.wwpn);
+DEFINE_IPL_ATTR(lun, "0x%016llx\n", (unsigned long long)
+                IPL_PARMBLOCK_START->fcp.lun);
+DEFINE_IPL_ATTR(bootprog, "%lld\n", (unsigned long long)
+                IPL_PARMBLOCK_START->fcp.bootprog);
+DEFINE_IPL_ATTR(br_lba, "%lld\n", (unsigned long long)
+                IPL_PARMBLOCK_START->fcp.br_lba);
+
+enum ipl_type_type {
+        ipl_type_unknown,
+        ipl_type_ccw,
+        ipl_type_fcp,
+};
+
+static enum ipl_type_type
+get_ipl_type(void)
+{
+        struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
+
+        if (!IPL_DEVNO_VALID)
+                return ipl_type_unknown;
+        if (!IPL_PARMBLOCK_VALID)
+                return ipl_type_ccw;
+        if (ipl->hdr.header.version > IPL_MAX_SUPPORTED_VERSION)
+                return ipl_type_unknown;
+        if (ipl->fcp.pbt != IPL_TYPE_FCP)
+                return ipl_type_unknown;
+        return ipl_type_fcp;
+}
+
+static ssize_t
+ipl_type_show(struct subsystem *subsys, char *page)
+{
+        switch (get_ipl_type()) {
+        case ipl_type_ccw:
+                return sprintf(page, "ccw\n");
+        case ipl_type_fcp:
+                return sprintf(page, "fcp\n");
+        default:
+                return sprintf(page, "unknown\n");
+        }
+}
+
+static struct subsys_attribute ipl_type_attr = __ATTR_RO(ipl_type);
+
+static ssize_t
+ipl_device_show(struct subsystem *subsys, char *page)
+{
+        struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
+
+        switch (get_ipl_type()) {
+        case ipl_type_ccw:
+                return sprintf(page, "0.0.%04x\n", ipl_devno);
+        case ipl_type_fcp:
+                return sprintf(page, "0.0.%04x\n", ipl->fcp.devno);
+        default:
+                return 0;
+        }
+}
+
+static struct subsys_attribute ipl_device_attr =
+        __ATTR(device, S_IRUGO, ipl_device_show, NULL);
+
+static struct attribute *ipl_fcp_attrs[] = {
+        &ipl_type_attr.attr,
+        &ipl_device_attr.attr,
+        &ipl_wwpn_attr.attr,
+        &ipl_lun_attr.attr,
+        &ipl_bootprog_attr.attr,
+        &ipl_br_lba_attr.attr,
+        NULL,
+};
+
+static struct attribute_group ipl_fcp_attr_group = {
+        .attrs = ipl_fcp_attrs,
+};
+
+static struct attribute *ipl_ccw_attrs[] = {
+        &ipl_type_attr.attr,
+        &ipl_device_attr.attr,
+        NULL,
+};
+
+static struct attribute_group ipl_ccw_attr_group = {
+        .attrs = ipl_ccw_attrs,
+};
+
+static struct attribute *ipl_unknown_attrs[] = {
+        &ipl_type_attr.attr,
+        NULL,
+};
+
+static struct attribute_group ipl_unknown_attr_group = {
+        .attrs = ipl_unknown_attrs,
+};
+
+static ssize_t
+ipl_parameter_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+{
+        unsigned int size = IPL_PARMBLOCK_SIZE;
+
+        if (off > size)
+                return 0;
+        if (off + count > size)
+                count = size - off;
+
+        memcpy(buf, (void *) IPL_PARMBLOCK_START + off, count);
+        return count;
+}
+
+static struct bin_attribute ipl_parameter_attr = {
+        .attr = {
+                .name = "binary_parameter",
+                .mode = S_IRUGO,
+                .owner = THIS_MODULE,
+        },
+        .size = PAGE_SIZE,
+        .read = &ipl_parameter_read,
+};
+
+static ssize_t
+ipl_scp_data_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
+{
+        unsigned int size =  IPL_PARMBLOCK_START->fcp.scp_data_len;
+        void *scp_data = &IPL_PARMBLOCK_START->fcp.scp_data;
+
+        if (off > size)
+                return 0;
+        if (off + count > size)
+                count = size - off;
+
+        memcpy(buf, scp_data + off, count);
+        return count;
+}
+
+static struct bin_attribute ipl_scp_data_attr = {
+        .attr = {
+                .name = "scp_data",
+                .mode = S_IRUGO,
+                .owner = THIS_MODULE,
+        },
+        .size = PAGE_SIZE,
+        .read = &ipl_scp_data_read,
+};
+
+static decl_subsys(ipl, NULL, NULL);
+
+static int __init
+ipl_device_sysfs_register(void) {
+        int rc;
+
+        rc = firmware_register(&ipl_subsys);
+        if (rc)
+                return rc;
+
+        switch (get_ipl_type()) {
+        case ipl_type_ccw:
+                sysfs_create_group(&ipl_subsys.kset.kobj, &ipl_ccw_attr_group);
+                break;
+        case ipl_type_fcp:
+                sysfs_create_group(&ipl_subsys.kset.kobj, &ipl_fcp_attr_group);
+                sysfs_create_bin_file(&ipl_subsys.kset.kobj,
+                                      &ipl_parameter_attr);
+                sysfs_create_bin_file(&ipl_subsys.kset.kobj,
+                                      &ipl_scp_data_attr);
+                break;
+        default:
+                sysfs_create_group(&ipl_subsys.kset.kobj,
+                                   &ipl_unknown_attr_group);
+                break;
+        }
+        return 0;
+}
+
+__initcall(ipl_device_sysfs_register);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 2fd75da15495..9a1d95894f3d 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -49,10 +49,6 @@
 
 #define TICK_SIZE tick
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 static ext_int_info_t ext_int_info_cc;
 static u64 init_timer_cc;
 static u64 jiffies_timer_cc;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index fa0726507b3d..22a895ecb7a4 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -24,7 +24,6 @@
 #include <asm/s390_ext.h>
 #include <asm/timer.h>
 
-#define VTIMER_MAGIC (TIMER_MAGIC + 1)
 static ext_int_info_t ext_int_info_timer;
 DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer);
 
@@ -277,20 +276,12 @@ static void do_cpu_timer_interrupt(struct pt_regs *regs, __u16 error_code)
 
 void init_virt_timer(struct vtimer_list *timer)
 {
-        timer->magic = VTIMER_MAGIC;
         timer->function = NULL;
         INIT_LIST_HEAD(&timer->entry);
         spin_lock_init(&timer->lock);
 }
 EXPORT_SYMBOL(init_virt_timer);
 
-static inline int check_vtimer(struct vtimer_list *timer)
-{
-        if (timer->magic != VTIMER_MAGIC)
-                return -EINVAL;
-        return 0;
-}
-
 static inline int vtimer_pending(struct vtimer_list *timer)
 {
         return (!list_empty(&timer->entry));
@@ -346,7 +337,7 @@ static void internal_add_vtimer(struct vtimer_list *timer)
 
 static inline int prepare_vtimer(struct vtimer_list *timer)
 {
-        if (check_vtimer(timer) || !timer->function) {
+        if (!timer->function) {
                 printk("add_virt_timer: uninitialized timer\n");
                 return -EINVAL;
         }
@@ -414,7 +405,7 @@ int mod_virt_timer(struct vtimer_list *timer, __u64 expires)
         unsigned long flags;
         int cpu;
 
-        if (check_vtimer(timer) || !timer->function) {
+        if (!timer->function) {
                 printk("mod_virt_timer: uninitialized timer\n");
                 return  -EINVAL;
         }
@@ -481,11 +472,6 @@ int del_virt_timer(struct vtimer_list *timer)
         unsigned long flags;
         struct vtimer_queue *vt_list;
 
-        if (check_vtimer(timer)) {
-                printk("del_virt_timer: timer not initialized\n");
-                return -EINVAL;
-        }
-
         /* check if timer is pending */
         if (!vtimer_pending(timer))
                 return 0;
diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c
index 71a6d4e7809f..6e3b58bd8795 100644
--- a/arch/sh/drivers/dma/dma-sysfs.c
+++ b/arch/sh/drivers/dma/dma-sysfs.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/sysdev.h>
 #include <linux/module.h>
+#include <linux/string.h>
 #include <asm/dma.h>
 
 static struct sysdev_class dma_sysclass = {
diff --git a/arch/sh/kernel/cpufreq.c b/arch/sh/kernel/cpufreq.c
index e0b384bef55f..47abf6e49dfb 100644
--- a/arch/sh/kernel/cpufreq.c
+++ b/arch/sh/kernel/cpufreq.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/cpumask.h>
 #include <linux/smp.h>
+#include <linux/sched.h>        /* set_cpus_allowed() */
 
 #include <asm/processor.h>
 #include <asm/watchdog.h>
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
index b28919b65682..1fbe5a428e31 100644
--- a/arch/sh/kernel/ptrace.c
+++ b/arch/sh/kernel/ptrace.c
@@ -80,7 +80,7 @@ void ptrace_disable(struct task_struct *child)
         /* nothing to do.. */
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         struct user * dummy = NULL;
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index 02ca69918d7c..671b876416bf 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -56,10 +56,6 @@ extern unsigned long wall_jiffies;
 #define TICK_SIZE (tick_nsec / 1000)
 DEFINE_SPINLOCK(tmu0_lock);
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /* XXX: Can we initialize this in a routine somewhere?  Dreamcast doesn't want
  * these routines anywhere... */
 #ifdef CONFIG_SH_RTC
diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c
index fd2000956dae..71f2eec00b99 100644
--- a/arch/sh64/kernel/ptrace.c
+++ b/arch/sh64/kernel/ptrace.c
@@ -121,7 +121,7 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
         return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c
index 43e395a14f49..870fe5327e09 100644
--- a/arch/sh64/kernel/time.c
+++ b/arch/sh64/kernel/time.c
@@ -116,8 +116,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
 static unsigned long tmu_base, rtc_base;
 unsigned long cprc_base;
 
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 36a40697b8d6..25e31d5ec99b 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -497,8 +497,8 @@ static void pcic_map_pci_device(struct linux_pcic *pcic,
                                  * CheerIO makes a similar conversion.
                                  * See ebus.c for details.
                                  *
-                                 * Note that check_region()/request_region()
-                                 * work for these devices.
+                                 * Note that request_region()
+                                 * works for these devices.
                                  *
                                  * XXX Neat trick, but it's a *bad* idea
                                  * to shit into regions like that.
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 279a62627c10..24814d58f9e1 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -45,10 +45,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 DEFINE_SPINLOCK(rtc_lock);
 enum sparc_clock_type sp_clock_typ;
 DEFINE_SPINLOCK(mostek_lock);
diff --git a/arch/sparc64/kernel/ioctl32.c b/arch/sparc64/kernel/ioctl32.c
index 43fc3173d480..e6a00325075a 100644
--- a/arch/sparc64/kernel/ioctl32.c
+++ b/arch/sparc64/kernel/ioctl32.c
@@ -475,9 +475,6 @@ IOCTL_TABLE_START
 #include <linux/compat_ioctl.h>
 #define DECLARES
 #include "compat_ioctl.c"
-COMPATIBLE_IOCTL(TIOCSTART)
-COMPATIBLE_IOCTL(TIOCSTOP)
-COMPATIBLE_IOCTL(TIOCSLTC)
 COMPATIBLE_IOCTL(FBIOGTYPE)
 COMPATIBLE_IOCTL(FBIOSATTR)
 COMPATIBLE_IOCTL(FBIOGATTR)
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 3f08a32f51a1..38c5525087a2 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -55,10 +55,6 @@ unsigned long ds1287_regs = 0UL;
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 static void __iomem *mstk48t08_regs;
 static void __iomem *mstk48t59_regs;
 
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 684e1f8b2755..cd06ed7d842d 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -27,10 +27,6 @@ config UID16
         bool
         default y
 
-config RWSEM_GENERIC_SPINLOCK
-        bool
-        default y
-
 config GENERIC_CALIBRATE_DELAY
         bool
         default y
@@ -40,6 +36,12 @@ config IRQ_RELEASE_METHOD
         bool
         default y
 
+menu "Host processor type and features"
+
+source "arch/i386/Kconfig.cpu"
+
+endmenu
+
 menu "UML-specific options"
 
 config MODE_TT
diff --git a/arch/um/Kconfig.x86_64 b/arch/um/Kconfig.x86_64
index bd35e59419c8..aae19bc4b06a 100644
--- a/arch/um/Kconfig.x86_64
+++ b/arch/um/Kconfig.x86_64
@@ -6,6 +6,11 @@ config 64BIT
         bool
         default y
 
+#XXX: this is so in the underlying arch, but it's wrong!!!
+config RWSEM_GENERIC_SPINLOCK
+        bool
+        default y
+
 config SEMAPHORE_SLEEPERS
         bool
         default y
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 2ee8a2858117..aef7c50f8e13 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -29,6 +29,12 @@ endif
 
 CFLAGS += -U__$(SUBARCH)__ -U$(SUBARCH)
 
-ifneq ($(CONFIG_GPROF),y)
-ARCH_CFLAGS += -DUM_FASTCALL
-endif
+# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
+include $(srctree)/arch/i386/Makefile.cpu
+
+# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
+cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
+
+CFLAGS += $(cflags-y)
+USER_CFLAGS += $(cflags-y)
+
diff --git a/arch/um/include/sysdep-i386/syscalls.h b/arch/um/include/sysdep-i386/syscalls.h
index a0d5b74d3731..57bd79efbee3 100644
--- a/arch/um/include/sysdep-i386/syscalls.h
+++ b/arch/um/include/sysdep-i386/syscalls.h
@@ -11,7 +11,6 @@ typedef long syscall_handler_t(struct pt_regs);
 /* Not declared on x86, incompatible declarations on x86_64, so these have
  * to go here rather than in sys_call_table.c
  */
-extern syscall_handler_t sys_ptrace;
 extern syscall_handler_t sys_rt_sigaction;
 
 extern syscall_handler_t old_mmap_i386;
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 4e08f7545d63..020ca79b8d33 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -22,10 +22,6 @@
 #include "mode.h"
 #include "os.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 int hz(void)
 {
         return(HZ);
diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c
index 4726b87f5e5a..d6077ff47d22 100644
--- a/arch/v850/kernel/ptrace.c
+++ b/arch/v850/kernel/ptrace.c
@@ -113,7 +113,7 @@ static int set_single_step (struct task_struct *t, int val)
         return 1;
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int rval;
diff --git a/arch/v850/kernel/time.c b/arch/v850/kernel/time.c
index ea3fd8844ff0..c1e85c2aef65 100644
--- a/arch/v850/kernel/time.c
+++ b/arch/v850/kernel/time.c
@@ -26,10 +26,6 @@
 
 #include "mach.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #define TICK_SIZE       (tick_nsec / 1000)
 
 /*
diff --git a/arch/x86_64/ia32/ia32_ioctl.c b/arch/x86_64/ia32/ia32_ioctl.c
index 419758f19ca4..4ba0e293d5e5 100644
--- a/arch/x86_64/ia32/ia32_ioctl.c
+++ b/arch/x86_64/ia32/ia32_ioctl.c
@@ -12,40 +12,11 @@
 #define INCLUDES
 #include <linux/syscalls.h>
 #include "compat_ioctl.c"
-#include <asm/mtrr.h>
 #include <asm/ia32.h>
 
 #define CODE
 #include "compat_ioctl.c"
   
-#ifndef TIOCGDEV
-#define TIOCGDEV       _IOR('T',0x32, unsigned int)
-#endif
-static int tiocgdev(unsigned fd, unsigned cmd,  unsigned int __user *ptr) 
-{ 
-
-        struct file *file;
-        struct tty_struct *real_tty;
-        int fput_needed, ret;
-
-        file = fget_light(fd, &fput_needed);
-        if (!file)
-                return -EBADF;
-
-        ret = -EINVAL;
-        if (file->f_op->ioctl != tty_ioctl)
-                goto out;
-        real_tty = (struct tty_struct *)file->private_data;
-        if (!real_tty)  
-                goto out;
-
-        ret = put_user(new_encode_dev(tty_devnum(real_tty)), ptr); 
-
-out:
-        fput_light(file, fput_needed);
-        return ret;
-} 
-
 #define RTC_IRQP_READ32 _IOR('p', 0x0b, unsigned int)    /* Read IRQ rate   */
 #define RTC_IRQP_SET32  _IOW('p', 0x0c, unsigned int)    /* Set IRQ rate    */
 #define RTC_EPOCH_READ32        _IOR('p', 0x0d, unsigned)        /* Read epoch      */
@@ -85,90 +56,6 @@ static int rtc32_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
         return sys_ioctl(fd,cmd,arg); 
 } 
 
-/* /proc/mtrr ioctls */
-
-
-struct mtrr_sentry32
-{
-    compat_ulong_t base;    /*  Base address     */
-    compat_uint_t size;    /*  Size of region   */
-    compat_uint_t type;     /*  Type of region   */
-};
-
-struct mtrr_gentry32
-{
-    compat_ulong_t regnum;   /*  Register number  */
-    compat_uint_t base;    /*  Base address     */
-    compat_uint_t size;    /*  Size of region   */
-    compat_uint_t type;     /*  Type of region   */
-};
-
-#define MTRR_IOCTL_BASE 'M'
-
-#define MTRRIOC32_ADD_ENTRY        _IOW(MTRR_IOCTL_BASE,  0, struct mtrr_sentry32)
-#define MTRRIOC32_SET_ENTRY        _IOW(MTRR_IOCTL_BASE,  1, struct mtrr_sentry32)
-#define MTRRIOC32_DEL_ENTRY        _IOW(MTRR_IOCTL_BASE,  2, struct mtrr_sentry32)
-#define MTRRIOC32_GET_ENTRY        _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry32)
-#define MTRRIOC32_KILL_ENTRY       _IOW(MTRR_IOCTL_BASE,  4, struct mtrr_sentry32)
-#define MTRRIOC32_ADD_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  5, struct mtrr_sentry32)
-#define MTRRIOC32_SET_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  6, struct mtrr_sentry32)
-#define MTRRIOC32_DEL_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  7, struct mtrr_sentry32)
-#define MTRRIOC32_GET_PAGE_ENTRY   _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry32)
-#define MTRRIOC32_KILL_PAGE_ENTRY  _IOW(MTRR_IOCTL_BASE,  9, struct mtrr_sentry32)
-
-
-static int mtrr_ioctl32(unsigned int fd, unsigned int cmd, unsigned long arg)
-{ 
-        struct mtrr_gentry g;
-        struct mtrr_sentry s;
-        int get = 0, err = 0; 
-        struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)arg; 
-        mm_segment_t oldfs = get_fs(); 
-
-        switch (cmd) { 
-#define SET(x) case MTRRIOC32_ ## x ## _ENTRY: cmd = MTRRIOC_ ## x ## _ENTRY; break 
-#define GET(x) case MTRRIOC32_ ## x ## _ENTRY: cmd = MTRRIOC_ ## x ## _ENTRY; get=1; break
-                SET(ADD);
-                SET(SET); 
-                SET(DEL);
-                GET(GET); 
-                SET(KILL);
-                SET(ADD_PAGE); 
-                SET(SET_PAGE); 
-                SET(DEL_PAGE); 
-                GET(GET_PAGE); 
-                SET(KILL_PAGE); 
-        } 
-        
-        if (get) { 
-                err = get_user(g.regnum, &g32->regnum);
-                err |= get_user(g.base, &g32->base);
-                err |= get_user(g.size, &g32->size);
-                err |= get_user(g.type, &g32->type); 
-
-                arg = (unsigned long)&g; 
-        } else { 
-                struct mtrr_sentry32 __user *s32 = (struct mtrr_sentry32 __user *)arg;
-                err = get_user(s.base, &s32->base);
-                err |= get_user(s.size, &s32->size);
-                err |= get_user(s.type, &s32->type);
-
-                arg = (unsigned long)&s; 
-        } 
-        if (err) return err;
-        
-        set_fs(KERNEL_DS); 
-        err = sys_ioctl(fd, cmd, arg); 
-        set_fs(oldfs); 
-                
-        if (!err && get) { 
-                err = put_user(g.base, &g32->base);
-                err |= put_user(g.size, &g32->size);
-                err |= put_user(g.regnum, &g32->regnum);
-                err |= put_user(g.type, &g32->type); 
-        } 
-        return err;
-} 
 
 #define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler) }, 
 #define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd,sys_ioctl)
@@ -185,7 +72,6 @@ COMPATIBLE_IOCTL(0x4B51)   /* KDSHWCLK - not in the kernel, but don't complain *
 COMPATIBLE_IOCTL(FIOQSIZE)
 
 /* And these ioctls need translation */
-HANDLE_IOCTL(TIOCGDEV, tiocgdev)
 /* realtime device */
 HANDLE_IOCTL(RTC_IRQP_READ,  rtc32_ioctl)
 HANDLE_IOCTL(RTC_IRQP_READ32,rtc32_ioctl)
@@ -193,17 +79,6 @@ HANDLE_IOCTL(RTC_IRQP_SET32, rtc32_ioctl)
 HANDLE_IOCTL(RTC_EPOCH_READ32, rtc32_ioctl)
 HANDLE_IOCTL(RTC_EPOCH_SET32, rtc32_ioctl)
 /* take care of sizeof(sizeof()) breakage */
-/* mtrr */
-HANDLE_IOCTL(MTRRIOC32_ADD_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_SET_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_DEL_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_GET_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_KILL_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_ADD_PAGE_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_SET_PAGE_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_DEL_PAGE_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_GET_PAGE_ENTRY, mtrr_ioctl32)
-HANDLE_IOCTL(MTRRIOC32_KILL_PAGE_ENTRY, mtrr_ioctl32)
 }; 
 
 int ioctl_table_size = ARRAY_SIZE(ioctl_start);
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c
index b2a238b5a17e..c6c9791d77c1 100644
--- a/arch/x86_64/kernel/i8259.c
+++ b/arch/x86_64/kernel/i8259.c
@@ -494,7 +494,7 @@ void invalidate_interrupt7(void);
 void thermal_interrupt(void);
 void i8254_timer_resume(void);
 
-static void setup_timer(void)
+static void setup_timer_hardware(void)
 {
         outb_p(0x34,0x43);              /* binary, mode 2, LSB/MSB, ch 0 */
         udelay(10);
@@ -505,13 +505,13 @@ static void setup_timer(void)
 
 static int timer_resume(struct sys_device *dev)
 {
-        setup_timer();
+        setup_timer_hardware();
         return 0;
 }
 
 void i8254_timer_resume(void)
 {
-        setup_timer();
+        setup_timer_hardware();
 }
 
 static struct sysdev_class timer_sysclass = {
@@ -594,7 +594,7 @@ void __init init_IRQ(void)
          * Set the clock to HZ Hz, we already have a valid
          * vector now:
          */
-        setup_timer();
+        setup_timer_hardware();
 
         if (!acpi_ioapic)
                 setup_irq(2, &irq2);
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index cb28df14ff6f..da0bc3e7bdf5 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -1213,7 +1213,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                 /* Intel-defined (#2) */
-                "pni", NULL, NULL, "monitor", "ds_cpl", NULL, NULL, "est",
+                "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", NULL, "est",
                 "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
diff --git a/arch/x86_64/kernel/suspend.c b/arch/x86_64/kernel/suspend.c
index f066c6ab3618..fd2bef780882 100644
--- a/arch/x86_64/kernel/suspend.c
+++ b/arch/x86_64/kernel/suspend.c
@@ -63,13 +63,12 @@ void save_processor_state(void)
         __save_processor_state(&saved_context);
 }
 
-static void
-do_fpu_end(void)
+static void do_fpu_end(void)
 {
-        /* restore FPU regs if necessary */
-        /* Do it out of line so that gcc does not move cr0 load to some stupid place */
-        kernel_fpu_end();
-        mxcsr_feature_mask_init();
+        /*
+         * Restore FPU regs if necessary
+         */
+        kernel_fpu_end();
 }
 
 void __restore_processor_state(struct saved_context *ctxt)
@@ -148,57 +147,7 @@ extern int restore_image(void);
 
 pgd_t *temp_level4_pgt;
 
-static void **pages;
-
-static inline void *__add_page(void)
-{
-        void **c;
-
-        c = (void **)get_usable_page(GFP_ATOMIC);
-        if (c) {
-                *c = pages;
-                pages = c;
-        }
-        return c;
-}
-
-static inline void *__next_page(void)
-{
-        void **c;
-
-        c = pages;
-        if (c) {
-                pages = *c;
-                *c = NULL;
-        }
-        return c;
-}
-
-/*
- * Try to allocate as many usable pages as needed and daisy chain them.
- * If one allocation fails, free the pages allocated so far
- */
-static int alloc_usable_pages(unsigned long n)
-{
-        void *p;
-
-        pages = NULL;
-        do
-                if (!__add_page())
-                        break;
-        while (--n);
-        if (n) {
-                p = __next_page();
-                while (p) {
-                        free_page((unsigned long)p);
-                        p = __next_page();
-                }
-                return -ENOMEM;
-        }
-        return 0;
-}
-
-static void res_phys_pud_init(pud_t *pud, unsigned long address, unsigned long end)
+static int res_phys_pud_init(pud_t *pud, unsigned long address, unsigned long end)
 {
         long i, j;
 
@@ -212,7 +161,9 @@ static void res_phys_pud_init(pud_t *pud, unsigned long address, unsigned long e
                 if (paddr >= end)
                         break;
 
-                pmd = (pmd_t *)__next_page();
+                pmd = (pmd_t *)get_safe_page(GFP_ATOMIC);
+                if (!pmd)
+                        return -ENOMEM;
                 set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE));
                 for (j = 0; j < PTRS_PER_PMD; pmd++, j++, paddr += PMD_SIZE) {
                         unsigned long pe;
@@ -224,13 +175,17 @@ static void res_phys_pud_init(pud_t *pud, unsigned long address, unsigned long e
                         set_pmd(pmd, __pmd(pe));
                 }
         }
+        return 0;
 }
 
-static void set_up_temporary_mappings(void)
+static int set_up_temporary_mappings(void)
 {
         unsigned long start, end, next;
+        int error;
 
-        temp_level4_pgt = (pgd_t *)__next_page();
+        temp_level4_pgt = (pgd_t *)get_safe_page(GFP_ATOMIC);
+        if (!temp_level4_pgt)
+                return -ENOMEM;
 
         /* It is safe to reuse the original kernel mapping */
         set_pgd(temp_level4_pgt + pgd_index(__START_KERNEL_map),
@@ -241,29 +196,27 @@ static void set_up_temporary_mappings(void)
         end = (unsigned long)pfn_to_kaddr(end_pfn);
 
         for (; start < end; start = next) {
-                pud_t *pud = (pud_t *)__next_page();
+                pud_t *pud = (pud_t *)get_safe_page(GFP_ATOMIC);
+                if (!pud)
+                        return -ENOMEM;
                 next = start + PGDIR_SIZE;
                 if (next > end)
                         next = end;
-                res_phys_pud_init(pud, __pa(start), __pa(next));
+                if ((error = res_phys_pud_init(pud, __pa(start), __pa(next))))
+                        return error;
                 set_pgd(temp_level4_pgt + pgd_index(start),
                         mk_kernel_pgd(__pa(pud)));
         }
+        return 0;
 }
 
 int swsusp_arch_resume(void)
 {
-        unsigned long n;
+        int error;
 
-        n = ((end_pfn << PAGE_SHIFT) + PUD_SIZE - 1) >> PUD_SHIFT;
-        n += (n + PTRS_PER_PUD - 1) / PTRS_PER_PUD + 1;
-        pr_debug("swsusp_arch_resume(): pages needed = %lu\n", n);
-        if (alloc_usable_pages(n)) {
-                free_eaten_memory();
-                return -ENOMEM;
-        }
         /* We have got enough memory and from now on we cannot recover */
-        set_up_temporary_mappings();
+        if ((error = set_up_temporary_mappings()))
+                return error;
         restore_image();
         return 0;
 }
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 703acde2a1a5..fdaddc4e5284 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -42,10 +42,6 @@
 #include <asm/apic.h>
 #endif
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #ifdef CONFIG_CPU_FREQ
 static void cpufreq_delayed_get(void);
 #endif
@@ -481,9 +477,9 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 static unsigned int cyc2ns_scale;
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
-static inline void set_cyc2ns_scale(unsigned long cpu_mhz)
+static inline void set_cyc2ns_scale(unsigned long cpu_khz)
 {
-        cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz;
+        cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz;
 }
 
 static inline unsigned long long cycles_2_ns(unsigned long long cyc)
@@ -655,7 +651,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
                         vxtime.tsc_quot = (1000L << 32) / cpu_khz;
         }
         
-        set_cyc2ns_scale(cpu_khz_ref / 1000);
+        set_cyc2ns_scale(cpu_khz_ref);
 
         return 0;
 }
@@ -939,7 +935,7 @@ void __init time_init(void)
         rdtscll_sync(&vxtime.last_tsc);
         setup_irq(0, &irq0);
 
-        set_cyc2ns_scale(cpu_khz / 1000);
+        set_cyc2ns_scale(cpu_khz);
 
 #ifndef CONFIG_SMP
         time_init_gtod();
@@ -1093,6 +1089,7 @@ static unsigned long PIE_freq = DEFAULT_RTC_INT_FREQ;
 static unsigned long PIE_count;
 
 static unsigned long hpet_rtc_int_freq; /* RTC interrupt frequency */
+static unsigned int hpet_t1_cmp; /* cached comparator register */
 
 int is_hpet_enabled(void)
 {
@@ -1129,10 +1126,12 @@ int hpet_rtc_timer_init(void)
         cnt = hpet_readl(HPET_COUNTER);
         cnt += ((hpet_tick*HZ)/hpet_rtc_int_freq);
         hpet_writel(cnt, HPET_T1_CMP);
+        hpet_t1_cmp = cnt;
         local_irq_restore(flags);
 
         cfg = hpet_readl(HPET_T1_CFG);
-        cfg |= HPET_TN_ENABLE | HPET_TN_SETVAL | HPET_TN_32BIT;
+        cfg &= ~HPET_TN_PERIODIC;
+        cfg |= HPET_TN_ENABLE | HPET_TN_32BIT;
         hpet_writel(cfg, HPET_T1_CFG);
 
         return 1;
@@ -1142,8 +1141,12 @@ static void hpet_rtc_timer_reinit(void)
 {
         unsigned int cfg, cnt;
 
-        if (!(PIE_on | AIE_on | UIE_on))
+        if (unlikely(!(PIE_on | AIE_on | UIE_on))) {
+                cfg = hpet_readl(HPET_T1_CFG);
+                cfg &= ~HPET_TN_ENABLE;
+                hpet_writel(cfg, HPET_T1_CFG);
                 return;
+        }
 
         if (PIE_on && (PIE_freq > DEFAULT_RTC_INT_FREQ))
                 hpet_rtc_int_freq = PIE_freq;
@@ -1151,15 +1154,10 @@ static void hpet_rtc_timer_reinit(void)
                 hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ;
 
         /* It is more accurate to use the comparator value than current count.*/
-        cnt = hpet_readl(HPET_T1_CMP);
+        cnt = hpet_t1_cmp;
         cnt += hpet_tick*HZ/hpet_rtc_int_freq;
         hpet_writel(cnt, HPET_T1_CMP);
-
-        cfg = hpet_readl(HPET_T1_CFG);
-        cfg |= HPET_TN_ENABLE | HPET_TN_SETVAL | HPET_TN_32BIT;
-        hpet_writel(cfg, HPET_T1_CFG);
-
-        return;
+        hpet_t1_cmp = cnt;
 }
 
 /*
diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c
index 03674daabc66..a17930747f20 100644
--- a/arch/xtensa/kernel/platform.c
+++ b/arch/xtensa/kernel/platform.c
@@ -18,6 +18,7 @@
 #include <linux/time.h>
 #include <asm/platform.h>
 #include <asm/timex.h>
+#include <asm/param.h>          /* HZ */
 
 #define _F(r,f,a,b)                                                     \
         r __platform_##f a b;                                           \
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 2659efdd4e99..14460743de07 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -45,7 +45,7 @@ void ptrace_disable(struct task_struct *child)
         /* Nothing to do.. */
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long sys_ptrace(long request, long pid, long addr, long data)
 {
         struct task_struct *child;
         int ret = -EPERM;
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 8e423d1335ce..cb6e38ed2b1d 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -29,9 +29,6 @@
 
 extern volatile unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-EXPORT_SYMBOL(jiffies_64);
-
 spinlock_t rtc_lock = SPIN_LOCK_UNLOCKED;
 EXPORT_SYMBOL(rtc_lock);
 
diff --git a/drivers/acorn/char/pcf8583.c b/drivers/acorn/char/pcf8583.c
index 2b850e5860a0..e26f007a1417 100644
--- a/drivers/acorn/char/pcf8583.c
+++ b/drivers/acorn/char/pcf8583.c
@@ -9,6 +9,7 @@
  *
  *  Driver for PCF8583 RTC & RAM chip
  */
+#include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/string.h>
@@ -32,7 +33,8 @@ static struct i2c_client_address_data addr_data = {
         .forces                 = forces,
 };
 
-#define DAT(x) ((unsigned int)(x->dev.driver_data))
+#define set_ctrl(x, v) i2c_set_clientdata(x, (void *)(unsigned int)(v))
+#define get_ctrl(x)    ((unsigned int)i2c_get_clientdata(x))
 
 static int
 pcf8583_attach(struct i2c_adapter *adap, int addr, int kind)
@@ -40,8 +42,17 @@ pcf8583_attach(struct i2c_adapter *adap, int addr, int kind)
         struct i2c_client *c;
         unsigned char buf[1], ad[1] = { 0 };
         struct i2c_msg msgs[2] = {
-                { addr, 0,        1, ad  },
-                { addr, I2C_M_RD, 1, buf }
+                {
+                        .addr = addr,
+                        .flags = 0,
+                        .len = 1,
+                        .buf = ad,
+                }, {
+                        .addr = addr,
+                        .flags = I2C_M_RD,
+                        .len = 1,
+                        .buf = buf,
+                }
         };
 
         c = kmalloc(sizeof(*c), GFP_KERNEL);
@@ -54,7 +65,7 @@ pcf8583_attach(struct i2c_adapter *adap, int addr, int kind)
         c->driver       = &pcf8583_driver;
 
         if (i2c_transfer(c->adapter, msgs, 2) == 2)
-                DAT(c) = buf[0];
+                set_ctrl(c, buf[0]);
 
         return i2c_attach_client(c);
 }
@@ -78,8 +89,17 @@ pcf8583_get_datetime(struct i2c_client *client, struct rtc_tm *dt)
 {
         unsigned char buf[8], addr[1] = { 1 };
         struct i2c_msg msgs[2] = {
-                { client->addr, 0,        1, addr },
-                { client->addr, I2C_M_RD, 6, buf  }
+                {
+                        .addr = client->addr,
+                        .flags = 0,
+                        .len = 1,
+                        .buf = addr,
+                }, {
+                        .addr = client->addr,
+                        .flags = I2C_M_RD,
+                        .len = 6,
+                        .buf = buf,
+                }
         };
         int ret = -EIO;
 
@@ -113,7 +133,7 @@ pcf8583_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
         int ret, len = 6;
 
         buf[0] = 0;
-        buf[1] = DAT(client) | 0x80;
+        buf[1] = get_ctrl(client) | 0x80;
         buf[2] = BIN_TO_BCD(dt->cs);
         buf[3] = BIN_TO_BCD(dt->secs);
         buf[4] = BIN_TO_BCD(dt->mins);
@@ -129,7 +149,7 @@ pcf8583_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
         if (ret == len)
                 ret = 0;
 
-        buf[1] = DAT(client);
+        buf[1] = get_ctrl(client);
         i2c_master_send(client, (char *)buf, 2);
 
         return ret;
@@ -138,7 +158,7 @@ pcf8583_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
 static int
 pcf8583_get_ctrl(struct i2c_client *client, unsigned char *ctrl)
 {
-        *ctrl = DAT(client);
+        *ctrl = get_ctrl(client);
         return 0;
 }
 
@@ -149,7 +169,7 @@ pcf8583_set_ctrl(struct i2c_client *client, unsigned char *ctrl)
 
         buf[0] = 0;
         buf[1] = *ctrl;
-        DAT(client) = *ctrl;
+        set_ctrl(client, *ctrl);
 
         return i2c_master_send(client, (char *)buf, 2);
 }
@@ -159,15 +179,23 @@ pcf8583_read_mem(struct i2c_client *client, struct mem *mem)
 {
         unsigned char addr[1];
         struct i2c_msg msgs[2] = {
-                { client->addr, 0,        1, addr },
-                { client->addr, I2C_M_RD, 0, mem->data }
+                {
+                        .addr = client->addr,
+                        .flags = 0,
+                        .len = 1,
+                        .buf = addr,
+                }, {
+                        .addr = client->addr,
+                        .flags = I2C_M_RD,
+                        .len = mem->nr,
+                        .buf = mem->data,
+                }
         };
 
         if (mem->loc < 8)
                 return -EINVAL;
 
         addr[0] = mem->loc;
-        msgs[1].len = mem->nr;
 
         return i2c_transfer(client->adapter, msgs, 2) == 2 ? 0 : -EIO;
 }
@@ -177,15 +205,23 @@ pcf8583_write_mem(struct i2c_client *client, struct mem *mem)
 {
         unsigned char addr[1];
         struct i2c_msg msgs[2] = {
-                { client->addr, 0, 1, addr },
-                { client->addr, 0, 0, mem->data }
+                {
+                        .addr = client->addr,
+                        .flags = 0,
+                        .len = 1,
+                        .buf = addr,
+                }, {
+                        .addr = client->addr,
+                        .flags = I2C_M_NOSTART,
+                        .len = mem->nr,
+                        .buf = mem->data,
+                }
         };
 
         if (mem->loc < 8)
                 return -EINVAL;
 
         addr[0] = mem->loc;
-        msgs[1].len = mem->nr;
 
         return i2c_transfer(client->adapter, msgs, 2) == 2 ? 0 : -EIO;
 }
@@ -234,4 +270,14 @@ static __init int pcf8583_init(void)
         return i2c_add_driver(&pcf8583_driver);
 }
 
-__initcall(pcf8583_init);
+static __exit void pcf8583_exit(void)
+{
+        i2c_del_driver(&pcf8583_driver);
+}
+
+module_init(pcf8583_init);
+module_exit(pcf8583_exit);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("PCF8583 I2C RTC driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 26a3a4016115..161db4acfb91 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -37,6 +37,7 @@
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 #include <linux/moduleparam.h>
+#include <linux/sched.h>        /* need_resched() */
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index aee50b453265..930427fc0c4b 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -158,7 +158,15 @@ int acpi_suspend(u32 acpi_state)
         return -EINVAL;
 }
 
+static int acpi_pm_state_valid(suspend_state_t pm_state)
+{
+        u32 acpi_state = acpi_suspend_states[pm_state];
+
+        return sleep_states[acpi_state];
+}
+
 static struct pm_ops acpi_pm_ops = {
+        .valid = acpi_pm_state_valid,
         .prepare = acpi_pm_prepare,
         .enter = acpi_pm_enter,
         .finish = acpi_pm_finish,
diff --git a/drivers/base/class.c b/drivers/base/class.c
index c3e569730afe..db65fd0babe9 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -17,6 +17,7 @@
 #include <linux/string.h>
 #include <linux/kdev_t.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 #include "base.h"
 
 #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr)
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 081c927b1ed8..a95844790f7b 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -16,6 +16,8 @@ struct sysdev_class cpu_sysdev_class = {
 };
 EXPORT_SYMBOL(cpu_sysdev_class);
 
+static struct sys_device *cpu_sys_devices[NR_CPUS];
+
 #ifdef CONFIG_HOTPLUG_CPU
 int __attribute__((weak)) smp_prepare_cpu (int cpu)
 {
@@ -64,6 +66,7 @@ static void __devinit register_cpu_control(struct cpu *cpu)
 }
 void unregister_cpu(struct cpu *cpu, struct node *root)
 {
+        int logical_cpu = cpu->sysdev.id;
 
         if (root)
                 sysfs_remove_link(&root->sysdev.kobj,
@@ -71,7 +74,7 @@ void unregister_cpu(struct cpu *cpu, struct node *root)
         sysdev_remove_file(&cpu->sysdev, &attr_online);
 
         sysdev_unregister(&cpu->sysdev);
-
+        cpu_sys_devices[logical_cpu] = NULL;
         return;
 }
 #else /* ... !CONFIG_HOTPLUG_CPU */
@@ -103,10 +106,19 @@ int __devinit register_cpu(struct cpu *cpu, int num, struct node *root)
                                           kobject_name(&cpu->sysdev.kobj));
         if (!error && !cpu->no_control)
                 register_cpu_control(cpu);
+        if (!error)
+                cpu_sys_devices[num] = &cpu->sysdev;
         return error;
 }
 
-
+struct sys_device *get_cpu_sysdev(int cpu)
+{
+        if (cpu < NR_CPUS)
+                return cpu_sys_devices[cpu];
+        else
+                return NULL;
+}
+EXPORT_SYMBOL_GPL(get_cpu_sysdev);
 
 int __init cpu_dev_init(void)
 {
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 4acb2c5733c3..98f6c02d6790 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -62,14 +62,16 @@ firmware_timeout_show(struct class *class, char *buf)
 }
 
 /**
- * firmware_timeout_store:
- * Description:
+ * firmware_timeout_store - set number of seconds to wait for firmware
+ * @class: device class pointer
+ * @buf: buffer to scan for timeout value
+ * @count: number of bytes in @buf
+ *
  *      Sets the number of seconds to wait for the firmware.  Once
- *      this expires an error will be return to the driver and no
+ *      this expires an error will be returned to the driver and no
  *      firmware will be provided.
  *
- *      Note: zero means 'wait for ever'
- *
+ *      Note: zero means 'wait forever'.
  **/
 static ssize_t
 firmware_timeout_store(struct class *class, const char *buf, size_t count)
@@ -123,12 +125,15 @@ firmware_loading_show(struct class_device *class_dev, char *buf)
 }
 
 /**
- * firmware_loading_store: - loading control file
- * Description:
+ * firmware_loading_store - set value in the 'loading' control file
+ * @class_dev: class_device pointer
+ * @buf: buffer to scan for loading control value
+ * @count: number of bytes in @buf
+ *
  *      The relevant values are:
  *
  *       1: Start a load, discarding any previous partial load.
- *       0: Conclude the load and handle the data to the driver code.
+ *       0: Conclude the load and hand the data to the driver code.
  *      -1: Conclude the load with an error and discard any written data.
  **/
 static ssize_t
@@ -201,6 +206,7 @@ out:
         up(&fw_lock);
         return ret_count;
 }
+
 static int
 fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
 {
@@ -227,11 +233,13 @@ fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
 }
 
 /**
- * firmware_data_write:
+ * firmware_data_write - write method for firmware
+ * @kobj: kobject for the class_device
+ * @buffer: buffer being written
+ * @offset: buffer offset for write in total data store area
+ * @count: buffer size
  *
- * Description:
- *
- *      Data written to the 'data' attribute will be later handled to
+ *      Data written to the 'data' attribute will be later handed to
  *      the driver as a firmware image.
  **/
 static ssize_t
@@ -264,6 +272,7 @@ out:
         up(&fw_lock);
         return retval;
 }
+
 static struct bin_attribute firmware_attr_data_tmpl = {
         .attr = {.name = "data", .mode = 0644, .owner = THIS_MODULE},
         .size = 0,
@@ -448,13 +457,16 @@ out:
 
 /**
  * request_firmware: - request firmware to hotplug and wait for it
- * Description:
- *      @firmware will be used to return a firmware image by the name
+ * @firmware_p: pointer to firmware image
+ * @name: name of firmware file
+ * @device: device for which firmware is being loaded
+ *
+ *      @firmware_p will be used to return a firmware image by the name
  *      of @name for device @device.
  *
  *      Should be called from user context where sleeping is allowed.
  *
- *      @name will be use as $FIRMWARE in the hotplug environment and
+ *      @name will be used as $FIRMWARE in the hotplug environment and
  *      should be distinctive enough not to be confused with any other
  *      firmware image for this or any other device.
  **/
@@ -468,6 +480,7 @@ request_firmware(const struct firmware **firmware_p, const char *name,
 
 /**
  * release_firmware: - release the resource associated with a firmware image
+ * @fw: firmware resource to release
  **/
 void
 release_firmware(const struct firmware *fw)
@@ -480,8 +493,10 @@ release_firmware(const struct firmware *fw)
 
 /**
  * register_firmware: - provide a firmware image for later usage
+ * @name: name of firmware image file
+ * @data: buffer pointer for the firmware image
+ * @size: size of the data buffer area
  *
- * Description:
  *      Make sure that @data will be available by requesting firmware @name.
  *
  *      Note: This will not be possible until some kind of persistence
@@ -526,21 +541,19 @@ request_firmware_work_func(void *arg)
 }
 
 /**
- * request_firmware_nowait:
+ * request_firmware_nowait: asynchronous version of request_firmware
+ * @module: module requesting the firmware
+ * @hotplug: invokes hotplug event to copy the firmware image if this flag
+ *      is non-zero else the firmware copy must be done manually.
+ * @name: name of firmware file
+ * @device: device for which firmware is being loaded
+ * @context: will be passed over to @cont, and
+ *      @fw may be %NULL if firmware request fails.
+ * @cont: function will be called asynchronously when the firmware
+ *      request is over.
  *
- * Description:
  *      Asynchronous variant of request_firmware() for contexts where
  *      it is not possible to sleep.
- *
- *      @hotplug invokes hotplug event to copy the firmware image if this flag
- *      is non-zero else the firmware copy must be done manually.
- *
- *      @cont will be called asynchronously when the firmware request is over.
- *
- *      @context will be passed over to @cont.
- *
- *      @fw may be %NULL if firmware request fails.
- *
  **/
 int
 request_firmware_nowait(
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 75ce8711bca5..08d9cc99c7de 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -16,6 +16,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/bootmem.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 
 #include "base.h"
 
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 3431eb6004c3..66ed8f2fece5 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/pm.h>
+#include <asm/semaphore.h>
 
 extern struct subsystem devices_subsys;
 
diff --git a/drivers/block/Kconfig.iosched b/drivers/block/Kconfig.iosched
index 6070a480600b..5b90d2fa63b8 100644
--- a/drivers/block/Kconfig.iosched
+++ b/drivers/block/Kconfig.iosched
@@ -38,4 +38,32 @@ config IOSCHED_CFQ
           among all processes in the system. It should provide a fair
           working environment, suitable for desktop systems.
 
+choice
+        prompt "Default I/O scheduler"
+        default DEFAULT_AS
+        help
+          Select the I/O scheduler which will be used by default for all
+          block devices.
+
+        config DEFAULT_AS
+                bool "Anticipatory" if IOSCHED_AS
+
+        config DEFAULT_DEADLINE
+                bool "Deadline" if IOSCHED_DEADLINE
+
+        config DEFAULT_CFQ
+                bool "CFQ" if IOSCHED_CFQ
+
+        config DEFAULT_NOOP
+                bool "No-op"
+
+endchoice
+
+config DEFAULT_IOSCHED
+        string
+        default "anticipatory" if DEFAULT_AS
+        default "deadline" if DEFAULT_DEADLINE
+        default "cfq" if DEFAULT_CFQ
+        default "noop" if DEFAULT_NOOP
+
 endmenu
diff --git a/drivers/block/as-iosched.c b/drivers/block/as-iosched.c
index 564172234819..c6744ff38294 100644
--- a/drivers/block/as-iosched.c
+++ b/drivers/block/as-iosched.c
@@ -1973,8 +1973,8 @@ static int __init as_init(void)
 
 static void __exit as_exit(void)
 {
-        kmem_cache_destroy(arq_pool);
         elv_unregister(&iosched_as);
+        kmem_cache_destroy(arq_pool);
 }
 
 module_init(as_init);
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index e183a3ef7839..ec27976a57da 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -28,13 +28,17 @@
    through the array controller.  Note in particular, neither 
    physical nor logical disks are presented through the scsi layer. */
 
+#include <linux/timer.h>
+#include <linux/completion.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include <asm/atomic.h>
+
 #include <scsi/scsi.h> 
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h> 
-#include <asm/atomic.h>
-#include <linux/timer.h>
-#include <linux/completion.h>
 
 #include "cciss_scsi.h"
 
diff --git a/drivers/block/cfq-iosched.c b/drivers/block/cfq-iosched.c
index 94690e4d41e0..5281f8e70510 100644
--- a/drivers/block/cfq-iosched.c
+++ b/drivers/block/cfq-iosched.c
@@ -2418,28 +2418,8 @@ static int __init cfq_init(void)
 
 static void __exit cfq_exit(void)
 {
-        struct task_struct *g, *p;
-        unsigned long flags;
-
-        read_lock_irqsave(&tasklist_lock, flags);
-
-        /*
-         * iterate each process in the system, removing our io_context
-         */
-        do_each_thread(g, p) {
-                struct io_context *ioc = p->io_context;
-
-                if (ioc && ioc->cic) {
-                        ioc->cic->exit(ioc->cic);
-                        cfq_free_io_context(ioc->cic);
-                        ioc->cic = NULL;
-                }
-        } while_each_thread(g, p);
-
-        read_unlock_irqrestore(&tasklist_lock, flags);
-
-        cfq_slab_kill();
         elv_unregister(&iosched_cfq);
+        cfq_slab_kill();
 }
 
 module_init(cfq_init);
diff --git a/drivers/block/elevator.c b/drivers/block/elevator.c
index 55621d5c5774..36f1057084b0 100644
--- a/drivers/block/elevator.c
+++ b/drivers/block/elevator.c
@@ -147,24 +147,17 @@ static void elevator_setup_default(void)
         struct elevator_type *e;
 
         /*
-         * check if default is set and exists
+         * If default has not been set, use the compiled-in selection.
          */
-        if (chosen_elevator[0] && (e = elevator_get(chosen_elevator))) {
-                elevator_put(e);
-                return;
-        }
+        if (!chosen_elevator[0])
+                strcpy(chosen_elevator, CONFIG_DEFAULT_IOSCHED);
 
-#if defined(CONFIG_IOSCHED_AS)
-        strcpy(chosen_elevator, "anticipatory");
-#elif defined(CONFIG_IOSCHED_DEADLINE)
-        strcpy(chosen_elevator, "deadline");
-#elif defined(CONFIG_IOSCHED_CFQ)
-        strcpy(chosen_elevator, "cfq");
-#elif defined(CONFIG_IOSCHED_NOOP)
-        strcpy(chosen_elevator, "noop");
-#else
-#error "You must build at least 1 IO scheduler into the kernel"
-#endif
+        /*
+         * If the given scheduler is not available, fall back to no-op.
+         */
+        if (!(e = elevator_find(chosen_elevator)))
+                strcpy(chosen_elevator, "noop");
+        elevator_put(e);
 }
 
 static int __init elevator_setup(char *str)
@@ -642,6 +635,27 @@ EXPORT_SYMBOL_GPL(elv_register);
 
 void elv_unregister(struct elevator_type *e)
 {
+        struct task_struct *g, *p;
+
+        /*
+         * Iterate every thread in the process to remove the io contexts.
+         */
+        read_lock(&tasklist_lock);
+        do_each_thread(g, p) {
+                struct io_context *ioc = p->io_context;
+                if (ioc && ioc->cic) {
+                        ioc->cic->exit(ioc->cic);
+                        ioc->cic->dtor(ioc->cic);
+                        ioc->cic = NULL;
+                }
+                if (ioc && ioc->aic) {
+                        ioc->aic->exit(ioc->aic);
+                        ioc->aic->dtor(ioc->aic);
+                        ioc->aic = NULL;
+                }
+        } while_each_thread(g, p);
+        read_unlock(&tasklist_lock);
+
         spin_lock_irq(&elv_list_lock);
         list_del_init(&e->list);
         spin_unlock_irq(&elv_list_lock);
@@ -739,8 +753,10 @@ ssize_t elv_iosched_store(request_queue_t *q, const char *name, size_t count)
                 return -EINVAL;
         }
 
-        if (!strcmp(elevator_name, q->elevator->elevator_type->elevator_name))
+        if (!strcmp(elevator_name, q->elevator->elevator_type->elevator_name)) {
+                elevator_put(e);
                 return count;
+        }
 
         elevator_switch(q, e);
         return count;
diff --git a/drivers/block/paride/paride.c b/drivers/block/paride/paride.c
index 1fef136c0e41..ce94aa11f6a7 100644
--- a/drivers/block/paride/paride.c
+++ b/drivers/block/paride/paride.c
@@ -29,6 +29,7 @@
 #include <linux/string.h>
 #include <linux/spinlock.h>
 #include <linux/wait.h>
+#include <linux/sched.h>        /* TASK_* */
 
 #ifdef CONFIG_PARPORT_MODULE
 #define CONFIG_PARPORT
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index 94af920465b5..e9746af29b9f 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -807,10 +807,6 @@ static int pf_next_buf(void)
                 return 1;
         spin_lock_irqsave(&pf_spin_lock, saved_flags);
         pf_end_request(1);
-        if (pf_req) {
-                pf_count = pf_req->current_nr_sectors;
-                pf_buf = pf_req->buffer;
-        }
         spin_unlock_irqrestore(&pf_spin_lock, saved_flags);
         return 1;
 }
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 82f2d6d2eeef..6f5df0fad703 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -162,6 +162,8 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_SLV, D_DLY};
 #include <linux/mtio.h>
 #include <linux/pg.h>
 #include <linux/device.h>
+#include <linux/sched.h>        /* current, TASK_* */
+#include <linux/jiffies.h>
 
 #include <asm/uaccess.h>
 
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 686c95573452..715ae5dc88fb 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -146,6 +146,7 @@ static int (*drives[4])[6] = {&drive0, &drive1, &drive2, &drive3};
 #include <linux/slab.h>
 #include <linux/mtio.h>
 #include <linux/device.h>
+#include <linux/sched.h>        /* current, TASK_*, schedule_timeout() */
 
 #include <asm/uaccess.h>
 
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index e46ecd23b3ac..709f809f79f1 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -778,13 +778,16 @@ static struct vio_device_id viodasd_device_table[] __devinitdata = {
         { "viodasd", "" },
         { "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, viodasd_device_table);
+
 static struct vio_driver viodasd_driver = {
-        .name = "viodasd",
         .id_table = viodasd_device_table,
         .probe = viodasd_probe,
-        .remove = viodasd_remove
+        .remove = viodasd_remove,
+        .driver = {
+                .name = "viodasd",
+                .owner = THIS_MODULE,
+        }
 };
 
 /*
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 0829db58462f..36f31d202223 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -736,13 +736,16 @@ static struct vio_device_id viocd_device_table[] __devinitdata = {
         { "viocd", "" },
         { "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, viocd_device_table);
+
 static struct vio_driver viocd_driver = {
-        .name = "viocd",
         .id_table = viocd_device_table,
         .probe = viocd_probe,
-        .remove = viocd_remove
+        .remove = viocd_remove,
+        .driver = {
+                .name = "viocd",
+                .owner = THIS_MODULE,
+        }
 };
 
 static int __init viocd_init(void)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index c29365d5b524..fdf4370db994 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -661,7 +661,7 @@ config HW_RANDOM
 
 config NVRAM
         tristate "/dev/nvram support"
-        depends on ATARI || X86 || X86_64 || ARM || GENERIC_NVRAM
+        depends on ATARI || X86 || ARM || GENERIC_NVRAM
         ---help---
           If you say Y here and create a character special file /dev/nvram
           with major number 10 and minor number 144 using mknod ("man mknod"),
@@ -985,7 +985,7 @@ config MAX_RAW_DEVS
 
 config HANGCHECK_TIMER
         tristate "Hangcheck timer"
-        depends on X86_64 || X86 || IA64 || PPC64 || ARCH_S390
+        depends on X86 || IA64 || PPC64 || ARCH_S390
         help
           The hangcheck-timer module detects when the system has gone
           out to lunch past a certain margin.  It can reboot the system
@@ -1001,5 +1001,17 @@ config MMTIMER
 
 source "drivers/char/tpm/Kconfig"
 
+config TELCLOCK
+        tristate "Telecom clock driver for MPBL0010 ATCA SBC"
+        depends on EXPERIMENTAL
+        default n
+        help
+          The telecom clock device is specific to the MPBL0010 ATCA computer and
+          allows direct userspace access to the configuration of the telecom clock
+          configuration settings.  This device is used for hardware synchronization
+          across the ATCA backplane fabric.  Upon loading, the driver exports a
+          sysfs directory, /sys/devices/platform/telco_clock, with a number of
+          files for controlling the behavior of this hardware.
+
 endmenu
 
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 08f69287ea36..4aeae687e88a 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -82,6 +82,7 @@ obj-$(CONFIG_NWFLASH) += nwflash.o
 obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o
 obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o
 obj-$(CONFIG_TANBAC_TB0219) += tb0219.o
+obj-$(CONFIG_TELCLOCK) += tlclk.o
 
 obj-$(CONFIG_WATCHDOG)  += watchdog/
 obj-$(CONFIG_MWAVE) += mwave/
diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index 7f8c1b53b754..486ed8a11b59 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -27,7 +27,7 @@ config AGP
 
 config AGP_ALI
         tristate "ALI chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         ---help---
           This option gives you AGP support for the GLX component of
           XFree86 4.x on the following ALi chipsets.  The supported chipsets
@@ -45,7 +45,7 @@ config AGP_ALI
 
 config AGP_ATI
         tristate "ATI chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         ---help---
       This option gives you AGP support for the GLX component of
       XFree86 4.x on the ATI RadeonIGP family of chipsets.
@@ -55,7 +55,7 @@ config AGP_ATI
 
 config AGP_AMD
         tristate "AMD Irongate, 761, and 762 chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         help
           This option gives you AGP support for the GLX component of
           XFree86 4.x on AMD Irongate, 761, and 762 chipsets.
@@ -91,7 +91,7 @@ config AGP_INTEL
 
 config AGP_NVIDIA
         tristate "NVIDIA nForce/nForce2 chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         help
           This option gives you AGP support for the GLX component of
           XFree86 4.x on the following NVIDIA chipsets.  The supported chipsets
@@ -99,7 +99,7 @@ config AGP_NVIDIA
 
 config AGP_SIS
         tristate "SiS chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         help
           This option gives you AGP support for the GLX component of
           XFree86 4.x on Silicon Integrated Systems [SiS] chipsets.
@@ -111,14 +111,14 @@ config AGP_SIS
 
 config AGP_SWORKS
         tristate "Serverworks LE/HE chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         help
           Say Y here to support the Serverworks AGP card.  See 
           <http://www.serverworks.com/> for product descriptions and images.
 
 config AGP_VIA
         tristate "VIA chipset support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         help
           This option gives you AGP support for the GLX component of
           XFree86 4.x on VIA MVP3/Apollo Pro chipsets.
@@ -154,7 +154,7 @@ config AGP_UNINORTH
 
 config AGP_EFFICEON
         tristate "Transmeta Efficeon support"
-        depends on AGP && X86 && !X86_64
+        depends on AGP && X86_32
         help
           This option gives you AGP support for the Transmeta Efficeon
           series processors with integrated northbridges.
diff --git a/drivers/char/agp/ali-agp.c b/drivers/char/agp/ali-agp.c
index 9c9c9c2247ce..b02fc2267159 100644
--- a/drivers/char/agp/ali-agp.c
+++ b/drivers/char/agp/ali-agp.c
@@ -7,6 +7,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/agp_backend.h>
+#include <asm/page.h>           /* PAGE_SIZE */
 #include "agp.h"
 
 #define ALI_AGPCTRL     0xb8
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 0a7624a9b1c1..0e6c3a31d344 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -13,6 +13,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/agp_backend.h>
+#include <asm/page.h>           /* PAGE_SIZE */
 #include "agp.h"
 
 /* Will need to be increased if AMD64 ever goes >8-way. */
diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c
index e572ced9100a..0b6e72642d6e 100644
--- a/drivers/char/agp/ati-agp.c
+++ b/drivers/char/agp/ati-agp.c
@@ -6,6 +6,8 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/agp_backend.h>
 #include <asm/agp.h>
 #include "agp.h"
diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
index 94943298c03e..a2d9e5e48bbe 100644
--- a/drivers/char/agp/i460-agp.c
+++ b/drivers/char/agp/i460-agp.c
@@ -10,6 +10,8 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/agp_backend.h>
 
 #include "agp.h"
diff --git a/drivers/char/agp/isoch.c b/drivers/char/agp/isoch.c
index c9ac731504f2..40083241804e 100644
--- a/drivers/char/agp/isoch.c
+++ b/drivers/char/agp/isoch.c
@@ -6,6 +6,7 @@
 #include <linux/pci.h>
 #include <linux/agp_backend.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 
 #include "agp.h"
 
diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c
index a9fb12c20eb7..71ea59a1dbeb 100644
--- a/drivers/char/agp/sworks-agp.c
+++ b/drivers/char/agp/sworks-agp.c
@@ -5,6 +5,8 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/agp_backend.h>
 #include "agp.h"
 
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index cf4c3648463d..c7f818cd7b02 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -281,7 +281,7 @@ static char rcsid[] =
  * make sure "cyc" appears in all kernel messages; all soft interrupts
  * handled by same routine; recognize out-of-band reception; comment
  * out some diagnostic messages; leave RTS/CTS flow control to hardware;
- * fix race condition in -Z buffer management; only -Y needs to explictly
+ * fix race condition in -Z buffer management; only -Y needs to explicitly
  * flush chars; tidy up some startup messages;
  *
  * Revision 1.36.4.18  1996/07/25 18:57:31  bentson
diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c
index 475cc5e555e1..6d3449761914 100644
--- a/drivers/char/drm/drm_sysfs.c
+++ b/drivers/char/drm/drm_sysfs.c
@@ -15,6 +15,8 @@
 #include <linux/device.h>
 #include <linux/kdev_t.h>
 #include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/string.h>
 
 #include "drm_core.h"
 #include "drmP.h"
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 407708a001e4..b7a0e4d6b934 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -3113,6 +3113,7 @@ MODULE_DEVICE_TABLE(pci, epca_pci_tbl);
 int __init init_PCI (void)
 {       /* Begin init_PCI */
         memset (&epca_driver, 0, sizeof (epca_driver));
+        epca_driver.owner = THIS_MODULE;
         epca_driver.name = "epca";
         epca_driver.id_table = epca_pci_tbl;
         epca_driver.probe = epca_init_one;
diff --git a/drivers/char/hangcheck-timer.c b/drivers/char/hangcheck-timer.c
index a54bc93353af..66e53dd450ff 100644
--- a/drivers/char/hangcheck-timer.c
+++ b/drivers/char/hangcheck-timer.c
@@ -117,7 +117,7 @@ __setup("hcheck_reboot", hangcheck_parse_reboot);
 __setup("hcheck_dump_tasks", hangcheck_parse_dump_tasks);
 #endif /* not MODULE */
 
-#if defined(CONFIG_X86) || defined(CONFIG_X86_64)
+#if defined(CONFIG_X86)
 # define HAVE_MONOTONIC
 # define TIMER_FREQ 1000000000ULL
 #elif defined(CONFIG_ARCH_S390)
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index c055bb630ffc..3808d9572619 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -49,7 +49,9 @@
 #define HPET_USER_FREQ  (64)
 #define HPET_DRIFT      (500)
 
-static u32 hpet_ntimer, hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
+#define HPET_RANGE_SIZE         1024    /* from HPET spec */
+
+static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
 
 /* A lock for concurrent access by app and isr hpet activity. */
 static DEFINE_SPINLOCK(hpet_lock);
@@ -78,7 +80,7 @@ struct hpets {
         struct hpet __iomem *hp_hpet;
         unsigned long hp_hpet_phys;
         struct time_interpolator *hp_interpolator;
-        unsigned long hp_period;
+        unsigned long long hp_tick_freq;
         unsigned long hp_delta;
         unsigned int hp_ntimer;
         unsigned int hp_which;
@@ -90,6 +92,7 @@ static struct hpets *hpets;
 #define HPET_OPEN               0x0001
 #define HPET_IE                 0x0002  /* interrupt enabled */
 #define HPET_PERIODIC           0x0004
+#define HPET_SHARED_IRQ         0x0008
 
 #if BITS_PER_LONG == 64
 #define write_counter(V, MC)    writeq(V, MC)
@@ -120,6 +123,11 @@ static irqreturn_t hpet_interrupt(int irq, void *data, struct pt_regs *regs)
         unsigned long isr;
 
         devp = data;
+        isr = 1 << (devp - devp->hd_hpets->hp_dev);
+
+        if ((devp->hd_flags & HPET_SHARED_IRQ) &&
+            !(isr & readl(&devp->hd_hpet->hpet_isr)))
+                return IRQ_NONE;
 
         spin_lock(&hpet_lock);
         devp->hd_irqdata++;
@@ -137,8 +145,8 @@ static irqreturn_t hpet_interrupt(int irq, void *data, struct pt_regs *regs)
                               &devp->hd_timer->hpet_compare);
         }
 
-        isr = (1 << (devp - devp->hd_hpets->hp_dev));
-        writeq(isr, &devp->hd_hpet->hpet_isr);
+        if (devp->hd_flags & HPET_SHARED_IRQ)
+                writel(isr, &devp->hd_hpet->hpet_isr);
         spin_unlock(&hpet_lock);
 
         spin_lock(&hpet_task_lock);
@@ -276,7 +284,8 @@ static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
 
         if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
                                         PAGE_SIZE, vma->vm_page_prot)) {
-                printk(KERN_ERR "remap_pfn_range failed in hpet.c\n");
+                printk(KERN_ERR "%s: io_remap_pfn_range failed\n",
+                        __FUNCTION__);
                 return -EAGAIN;
         }
 
@@ -364,7 +373,9 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp)
         hpet = devp->hd_hpet;
         hpetp = devp->hd_hpets;
 
-        v = readq(&timer->hpet_config);
+        if (!devp->hd_ireqfreq)
+                return -EIO;
+
         spin_lock_irq(&hpet_lock);
 
         if (devp->hd_flags & HPET_IE) {
@@ -373,16 +384,21 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp)
         }
 
         devp->hd_flags |= HPET_IE;
+
+        if (readl(&timer->hpet_config) & Tn_INT_TYPE_CNF_MASK)
+                devp->hd_flags |= HPET_SHARED_IRQ;
         spin_unlock_irq(&hpet_lock);
 
-        t = readq(&timer->hpet_config);
         irq = devp->hd_hdwirq;
 
         if (irq) {
-                sprintf(devp->hd_name, "hpet%d", (int)(devp - hpetp->hp_dev));
+                unsigned long irq_flags;
 
-                if (request_irq
-                    (irq, hpet_interrupt, SA_INTERRUPT, devp->hd_name, (void *)devp)) {
+                sprintf(devp->hd_name, "hpet%d", (int)(devp - hpetp->hp_dev));
+                irq_flags = devp->hd_flags & HPET_SHARED_IRQ
+                                                ? SA_SHIRQ : SA_INTERRUPT;
+                if (request_irq(irq, hpet_interrupt, irq_flags,
+                                devp->hd_name, (void *)devp)) {
                         printk(KERN_ERR "hpet: IRQ %d is not free\n", irq);
                         irq = 0;
                 }
@@ -416,20 +432,24 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp)
                 write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
         }
 
-        isr = (1 << (devp - hpets->hp_dev));
-        writeq(isr, &hpet->hpet_isr);
+        if (devp->hd_flags & HPET_SHARED_IRQ) {
+                isr = 1 << (devp - devp->hd_hpets->hp_dev);
+                writel(isr, &hpet->hpet_isr);
+        }
         writeq(g, &timer->hpet_config);
         local_irq_restore(flags);
 
         return 0;
 }
 
-static inline unsigned long hpet_time_div(unsigned long dis)
+/* converts Hz to number of timer ticks */
+static inline unsigned long hpet_time_div(struct hpets *hpets,
+                                          unsigned long dis)
 {
-        unsigned long long m = 1000000000000000ULL;
+        unsigned long long m;
 
+        m = hpets->hp_tick_freq + (dis >> 1);
         do_div(m, dis);
-
         return (unsigned long)m;
 }
 
@@ -477,14 +497,21 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
                 {
                         struct hpet_info info;
 
-                        info.hi_ireqfreq = hpet_time_div(hpetp->hp_period *
-                                                         devp->hd_ireqfreq);
+                        if (devp->hd_ireqfreq)
+                                info.hi_ireqfreq =
+                                        hpet_time_div(hpetp, devp->hd_ireqfreq);
+                        else
+                                info.hi_ireqfreq = 0;
                         info.hi_flags =
                             readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
-                        info.hi_hpet = devp->hd_hpets->hp_which;
-                        info.hi_timer = devp - devp->hd_hpets->hp_dev;
-                        if (copy_to_user((void __user *)arg, &info, sizeof(info)))
-                                err = -EFAULT;
+                        info.hi_hpet = hpetp->hp_which;
+                        info.hi_timer = devp - hpetp->hp_dev;
+                        if (kernel)
+                                memcpy((void *)arg, &info, sizeof(info));
+                        else
+                                if (copy_to_user((void __user *)arg, &info,
+                                                 sizeof(info)))
+                                        err = -EFAULT;
                         break;
                 }
         case HPET_EPI:
@@ -516,12 +543,12 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
                         break;
                 }
 
-                if (arg & (arg - 1)) {
+                if (!arg) {
                         err = -EINVAL;
                         break;
                 }
 
-                devp->hd_ireqfreq = hpet_time_div(hpetp->hp_period * arg);
+                devp->hd_ireqfreq = hpet_time_div(hpetp, arg);
         }
 
         return err;
@@ -539,6 +566,17 @@ static struct file_operations hpet_fops = {
         .mmap = hpet_mmap,
 };
 
+static int hpet_is_known(struct hpet_data *hdp)
+{
+        struct hpets *hpetp;
+
+        for (hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
+                if (hpetp->hp_hpet_phys == hdp->hd_phys_address)
+                        return 1;
+
+        return 0;
+}
+
 EXPORT_SYMBOL(hpet_alloc);
 EXPORT_SYMBOL(hpet_register);
 EXPORT_SYMBOL(hpet_unregister);
@@ -563,6 +601,8 @@ int hpet_register(struct hpet_task *tp, int periodic)
                 return -EINVAL;
         }
 
+        tp->ht_opaque = NULL;
+
         spin_lock_irq(&hpet_task_lock);
         spin_lock(&hpet_lock);
 
@@ -702,15 +742,14 @@ static void hpet_register_interpolator(struct hpets *hpetp)
 #ifdef  CONFIG_TIME_INTERPOLATION
         struct time_interpolator *ti;
 
-        ti = kmalloc(sizeof(*ti), GFP_KERNEL);
+        ti = kzalloc(sizeof(*ti), GFP_KERNEL);
         if (!ti)
                 return;
 
-        memset(ti, 0, sizeof(*ti));
         ti->source = TIME_SOURCE_MMIO64;
         ti->shift = 10;
         ti->addr = &hpetp->hp_hpet->hpet_mc;
-        ti->frequency = hpet_time_div(hpets->hp_period);
+        ti->frequency = hpetp->hp_tick_freq;
         ti->drift = HPET_DRIFT;
         ti->mask = -1;
 
@@ -743,11 +782,11 @@ static unsigned long hpet_calibrate(struct hpets *hpetp)
         if (!timer)
                 return 0;
 
-        hpet = hpets->hp_hpet;
+        hpet = hpetp->hp_hpet;
         t = read_counter(&timer->hpet_compare);
 
         i = 0;
-        count = hpet_time_div(hpetp->hp_period * TICK_CALIBRATE);
+        count = hpet_time_div(hpetp, TICK_CALIBRATE);
 
         local_irq_save(flags);
 
@@ -771,28 +810,29 @@ int hpet_alloc(struct hpet_data *hdp)
         struct hpets *hpetp;
         size_t siz;
         struct hpet __iomem *hpet;
-        static struct hpets *last = (struct hpets *)0;
-        unsigned long ns;
+        static struct hpets *last = NULL;
+        unsigned long period;
+        unsigned long long temp;
 
         /*
          * hpet_alloc can be called by platform dependent code.
-         * if platform dependent code has allocated the hpet
-         * ACPI also reports hpet, then we catch it here.
+         * If platform dependent code has allocated the hpet that
+         * ACPI has also reported, then we catch it here.
          */
-        for (hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
-                if (hpetp->hp_hpet == hdp->hd_address)
-                        return 0;
+        if (hpet_is_known(hdp)) {
+                printk(KERN_DEBUG "%s: duplicate HPET ignored\n",
+                        __FUNCTION__);
+                return 0;
+        }
 
         siz = sizeof(struct hpets) + ((hdp->hd_nirqs - 1) *
                                       sizeof(struct hpet_dev));
 
-        hpetp = kmalloc(siz, GFP_KERNEL);
+        hpetp = kzalloc(siz, GFP_KERNEL);
 
         if (!hpetp)
                 return -ENOMEM;
 
-        memset(hpetp, 0, siz);
-
         hpetp->hp_which = hpet_nhpet++;
         hpetp->hp_hpet = hdp->hd_address;
         hpetp->hp_hpet_phys = hdp->hd_phys_address;
@@ -822,21 +862,23 @@ int hpet_alloc(struct hpet_data *hdp)
 
         last = hpetp;
 
-        hpetp->hp_period = (cap & HPET_COUNTER_CLK_PERIOD_MASK) >>
-            HPET_COUNTER_CLK_PERIOD_SHIFT;
+        period = (cap & HPET_COUNTER_CLK_PERIOD_MASK) >>
+                HPET_COUNTER_CLK_PERIOD_SHIFT; /* fs, 10^-15 */
+        temp = 1000000000000000uLL; /* 10^15 femtoseconds per second */
+        temp += period >> 1; /* round */
+        do_div(temp, period);
+        hpetp->hp_tick_freq = temp; /* ticks per second */
 
-        printk(KERN_INFO "hpet%d: at MMIO 0x%lx, IRQ%s",
-                hpetp->hp_which, hdp->hd_phys_address,
+        printk(KERN_INFO "hpet%d: at MMIO 0x%lx (virtual 0x%p), IRQ%s",
+                hpetp->hp_which, hdp->hd_phys_address, hdp->hd_address,
                 hpetp->hp_ntimer > 1 ? "s" : "");
         for (i = 0; i < hpetp->hp_ntimer; i++)
                 printk("%s %d", i > 0 ? "," : "", hdp->hd_irq[i]);
         printk("\n");
 
-        ns = hpetp->hp_period;  /* femptoseconds, 10^-15 */
-        ns /= 1000000;          /* convert to nanoseconds, 10^-9 */
-        printk(KERN_INFO "hpet%d: %ldns tick, %d %d-bit timers\n",
-                hpetp->hp_which, ns, hpetp->hp_ntimer,
-                cap & HPET_COUNTER_SIZE_MASK ? 64 : 32);
+        printk(KERN_INFO "hpet%u: %u %d-bit timers, %Lu Hz\n",
+               hpetp->hp_which, hpetp->hp_ntimer,
+               cap & HPET_COUNTER_SIZE_MASK ? 64 : 32, hpetp->hp_tick_freq);
 
         mcfg = readq(&hpet->hpet_config);
         if ((mcfg & HPET_ENABLE_CNF_MASK) == 0) {
@@ -845,13 +887,10 @@ int hpet_alloc(struct hpet_data *hdp)
                 writeq(mcfg, &hpet->hpet_config);
         }
 
-        for (i = 0, devp = hpetp->hp_dev; i < hpetp->hp_ntimer;
-             i++, hpet_ntimer++, devp++) {
-                unsigned long v;
+        for (i = 0, devp = hpetp->hp_dev; i < hpetp->hp_ntimer; i++, devp++) {
                 struct hpet_timer __iomem *timer;
 
                 timer = &hpet->hpet_timers[devp - hpetp->hp_dev];
-                v = readq(&timer->hpet_config);
 
                 devp->hd_hpets = hpetp;
                 devp->hd_hpet = hpet;
@@ -880,7 +919,6 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
         struct hpet_data *hdp;
         acpi_status status;
         struct acpi_resource_address64 addr;
-        struct hpets *hpetp;
 
         hdp = data;
 
@@ -893,9 +931,29 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
                 hdp->hd_phys_address = addr.min_address_range;
                 hdp->hd_address = ioremap(addr.min_address_range, size);
 
-                for (hpetp = hpets; hpetp; hpetp = hpetp->hp_next)
-                        if (hpetp->hp_hpet == hdp->hd_address)
-                                return -EBUSY;
+                if (hpet_is_known(hdp)) {
+                        printk(KERN_DEBUG "%s: 0x%lx is busy\n",
+                                __FUNCTION__, hdp->hd_phys_address);
+                        iounmap(hdp->hd_address);
+                        return -EBUSY;
+                }
+        } else if (res->id == ACPI_RSTYPE_FIXED_MEM32) {
+                struct acpi_resource_fixed_mem32 *fixmem32;
+
+                fixmem32 = &res->data.fixed_memory32;
+                if (!fixmem32)
+                        return -EINVAL;
+
+                hdp->hd_phys_address = fixmem32->range_base_address;
+                hdp->hd_address = ioremap(fixmem32->range_base_address,
+                                                HPET_RANGE_SIZE);
+
+                if (hpet_is_known(hdp)) {
+                        printk(KERN_DEBUG "%s: 0x%lx is busy\n",
+                                __FUNCTION__, hdp->hd_phys_address);
+                        iounmap(hdp->hd_address);
+                        return -EBUSY;
+                }
         } else if (res->id == ACPI_RSTYPE_EXT_IRQ) {
                 struct acpi_resource_ext_irq *irqp;
                 int i;
diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c
index 78d681dc35a8..f5212eb2b41d 100644
--- a/drivers/char/hvc_vio.c
+++ b/drivers/char/hvc_vio.c
@@ -95,11 +95,11 @@ static int __devexit hvc_vio_remove(struct vio_dev *vdev)
 }
 
 static struct vio_driver hvc_vio_driver = {
-        .name           = hvc_driver_name,
         .id_table       = hvc_driver_table,
         .probe          = hvc_vio_probe,
         .remove         = hvc_vio_remove,
         .driver         = {
+                .name   = hvc_driver_name,
                 .owner  = THIS_MODULE,
         }
 };
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index f47f009f9259..53dc77c760fc 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -720,10 +720,13 @@ static int __devexit hvcs_remove(struct vio_dev *dev)
 };
 
 static struct vio_driver hvcs_vio_driver = {
-        .name           = hvcs_driver_name,
         .id_table       = hvcs_driver_table,
         .probe          = hvcs_probe,
         .remove         = hvcs_remove,
+        .driver         = {
+                .name   = hvcs_driver_name,
+                .owner  = THIS_MODULE,
+        }
 };
 
 /* Only called from hvcs_get_pi please */
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 38be4b0dbd1c..91dd669273e0 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -231,9 +231,7 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
 static int mmap_mem(struct file * file, struct vm_area_struct * vma)
 {
 #if defined(__HAVE_PHYS_MEM_ACCESS_PROT)
-        unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-
-        vma->vm_page_prot = phys_mem_access_prot(file, offset,
+        vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
                                                  vma->vm_end - vma->vm_start,
                                                  vma->vm_page_prot);
 #elif defined(pgprot_noncached)
diff --git a/drivers/char/mwave/3780i.c b/drivers/char/mwave/3780i.c
index 613aed9e1840..d1fe05e83882 100644
--- a/drivers/char/mwave/3780i.c
+++ b/drivers/char/mwave/3780i.c
@@ -53,6 +53,8 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/bitops.h>
+#include <linux/sched.h>        /* cond_resched() */
+
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 5b1d3680c8ab..928b850cc679 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -256,7 +256,6 @@ static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
 static int sReadAiopID(ByteIO_t io);
 static int sReadAiopNumChan(WordIO_t io);
 
-#ifdef MODULE
 MODULE_AUTHOR("Theodore Ts'o");
 MODULE_DESCRIPTION("Comtrol RocketPort driver");
 module_param(board1, ulong, 0);
@@ -288,17 +287,14 @@ MODULE_PARM_DESC(pc104_3, "set interface types for ISA(PC104) board #3 (e.g. pc1
 module_param_array(pc104_4, ulong, NULL, 0);
 MODULE_PARM_DESC(pc104_4, "set interface types for ISA(PC104) board #4 (e.g. pc104_4=232,232,485,485,...");
 
-int rp_init(void);
+static int rp_init(void);
 static void rp_cleanup_module(void);
 
 module_init(rp_init);
 module_exit(rp_cleanup_module);
 
-#endif
 
-#ifdef MODULE_LICENSE
 MODULE_LICENSE("Dual BSD/GPL");
-#endif
 
 /*************************************************************************/
 /*                     Module code starts here                           */
@@ -2378,7 +2374,7 @@ static struct tty_operations rocket_ops = {
 /*
  * The module "startup" routine; it's run when the module is loaded.
  */
-int __init rp_init(void)
+static int __init rp_init(void)
 {
         int retval, pci_boards_found, isa_boards_found, i;
 
@@ -2502,7 +2498,6 @@ int __init rp_init(void)
         return 0;
 }
 
-#ifdef MODULE
 
 static void rp_cleanup_module(void)
 {
@@ -2530,7 +2525,6 @@ static void rp_cleanup_module(void)
         if (controller)
                 release_region(controller, 4);
 }
-#endif
 
 /***************************************************************************
 Function: sInitController
diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c
index 6b4e9d155f50..dda30e42ec79 100644
--- a/drivers/char/ser_a2232.c
+++ b/drivers/char/ser_a2232.c
@@ -790,7 +790,7 @@ static int __init a2232board_init(void)
 
         }       
 
-        printk("Total: %d A2232 boards initialized.\n.", nr_a2232); /* Some status report if no card was found */
+        printk("Total: %d A2232 boards initialized.\n", nr_a2232); /* Some status report if no card was found */
 
         a2232_init_portstructs();
 
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index 50e0b612a8a2..352547eabf7b 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -38,19 +38,19 @@
  *
  * Revision 1.0:  April 1st 1997.
  *                Initial release for alpha testing.
- * Revision 1.1:  April 14th 1997. 
- *                Incorporated Richard Hudsons suggestions, 
+ * Revision 1.1:  April 14th 1997.
+ *                Incorporated Richard Hudsons suggestions,
  *                removed some debugging printk's.
  * Revision 1.2:  April 15th 1997.
  *                Ported to 2.1.x kernels.
- * Revision 1.3:  April 17th 1997 
- *                Backported to 2.0. (Compatibility macros). 
+ * Revision 1.3:  April 17th 1997
+ *                Backported to 2.0. (Compatibility macros).
  * Revision 1.4:  April 18th 1997
- *                Fixed DTR/RTS bug that caused the card to indicate 
- *                "don't send data" to a modem after the password prompt.  
+ *                Fixed DTR/RTS bug that caused the card to indicate
+ *                "don't send data" to a modem after the password prompt.
  *                Fixed bug for premature (fake) interrupts.
  * Revision 1.5:  April 19th 1997
- *                fixed a minor typo in the header file, cleanup a little. 
+ *                fixed a minor typo in the header file, cleanup a little.
  *                performance warnings are now MAXed at once per minute.
  * Revision 1.6:  May 23 1997
  *                Changed the specialix=... format to include interrupt.
@@ -60,10 +60,10 @@
  *                port to linux-2.1.43 kernel.
  * Revision 1.9:  Oct 9  1998
  *                Added stuff for the IO8+/PCI version.
- * Revision 1.10: Oct 22  1999 / Jan 21 2000. 
- *                Added stuff for setserial. 
+ * Revision 1.10: Oct 22  1999 / Jan 21 2000.
+ *                Added stuff for setserial.
  *                Nicolas Mailhot (Nicolas.Mailhot@email.enst.fr)
- * 
+ *
  */
 
 #define VERSION "1.11"
@@ -154,7 +154,7 @@ static int sx_poll = HZ;
 
 
 
-/* 
+/*
  * The following defines are mostly for testing purposes. But if you need
  * some nice reporting in your syslog, you can define them also.
  */
@@ -188,7 +188,7 @@ static DECLARE_MUTEX(tmp_buf_sem);
 
 static unsigned long baud_table[] =  {
         0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
-        9600, 19200, 38400, 57600, 115200, 0, 
+        9600, 19200, 38400, 57600, 115200, 0,
 };
 
 static struct specialix_board sx_board[SX_NBOARD] =  {
@@ -216,7 +216,7 @@ static inline int sx_paranoia_check(struct specialix_port const * port,
                 KERN_ERR "sx: Warning: bad specialix port magic number for device %s in %s\n";
         static const char *badinfo =
                 KERN_ERR "sx: Warning: null specialix port for device %s in %s\n";
- 
+
         if (!port) {
                 printk(badinfo, name, routine);
                 return 1;
@@ -231,9 +231,9 @@ static inline int sx_paranoia_check(struct specialix_port const * port,
 
 
 /*
- * 
+ *
  *  Service functions for specialix IO8+ driver.
- * 
+ *
  */
 
 /* Get board number from pointer */
@@ -246,7 +246,7 @@ static inline int board_No (struct specialix_board * bp)
 /* Get port number from pointer */
 static inline int port_No (struct specialix_port const * port)
 {
-        return SX_PORT(port - sx_port); 
+        return SX_PORT(port - sx_port);
 }
 
 
@@ -309,7 +309,7 @@ static inline void sx_wait_CCR(struct specialix_board  * bp)
                         return;
                 udelay (1);
         }
-        
+
         printk(KERN_ERR "sx%d: Timeout waiting for CCR.\n", board_No(bp));
 }
 
@@ -329,7 +329,7 @@ static inline void sx_wait_CCR_off(struct specialix_board  * bp)
                         return;
                 udelay (1);
         }
-        
+
         printk(KERN_ERR "sx%d: Timeout waiting for CCR.\n", board_No(bp));
 }
 
@@ -338,34 +338,28 @@ static inline void sx_wait_CCR_off(struct specialix_board  * bp)
  *  specialix IO8+ IO range functions.
  */
 
-static inline int sx_check_io_range(struct specialix_board * bp)
+static inline int sx_request_io_range(struct specialix_board * bp)
 {
-        return check_region (bp->base, SX_IO_SPACE);
-}
-
-
-static inline void sx_request_io_range(struct specialix_board * bp)
-{
-        request_region(bp->base, 
-                       bp->flags&SX_BOARD_IS_PCI?SX_PCI_IO_SPACE:SX_IO_SPACE,
-                       "specialix IO8+" );
+        return request_region(bp->base,
+                bp->flags & SX_BOARD_IS_PCI ? SX_PCI_IO_SPACE : SX_IO_SPACE,
+                "specialix IO8+") == NULL;
 }
 
 
 static inline void sx_release_io_range(struct specialix_board * bp)
 {
-        release_region(bp->base, 
+        release_region(bp->base,
                        bp->flags&SX_BOARD_IS_PCI?SX_PCI_IO_SPACE:SX_IO_SPACE);
 }
 
-        
+
 /* Must be called with enabled interrupts */
-/* Ugly. Very ugly. Don't use this for anything else than initialization 
+/* Ugly. Very ugly. Don't use this for anything else than initialization
    code */
 static inline void sx_long_delay(unsigned long delay)
 {
         unsigned long i;
-        
+
         for (i = jiffies + delay; time_after(i, jiffies); ) ;
 }
 
@@ -378,7 +372,7 @@ static int sx_set_irq ( struct specialix_board *bp)
         int i;
         unsigned long flags;
 
-        if (bp->flags & SX_BOARD_IS_PCI) 
+        if (bp->flags & SX_BOARD_IS_PCI)
                 return 1;
         switch (bp->irq) {
         /* In the same order as in the docs... */
@@ -420,7 +414,7 @@ static int sx_init_CD186x(struct specialix_board  * bp)
         sx_out_off(bp, CD186x_PILR3, SX_ACK_RINT);      /* Prio for receiver intr    */
         /* Set RegAckEn */
         sx_out_off(bp, CD186x_SRCR, sx_in (bp, CD186x_SRCR) | SRCR_REGACKEN);
-        
+
         /* Setting up prescaler. We need 4 ticks per 1 ms */
         scaler =  SX_OSCFREQ/SPECIALIX_TPS;
 
@@ -448,7 +442,7 @@ static int read_cross_byte (struct specialix_board *bp, int reg, int bit)
         spin_lock_irqsave(&bp->lock, flags);
         for (i=0, t=0;i<8;i++) {
                 sx_out_off (bp, CD186x_CAR, i);
-                if (sx_in_off (bp, reg) & bit) 
+                if (sx_in_off (bp, reg) & bit)
                         t |= 1 << i;
         }
         spin_unlock_irqrestore(&bp->lock, flags);
@@ -472,7 +466,7 @@ void missed_irq (unsigned long data)
         spin_unlock_irqrestore(&bp->lock, flags);
         if (irq) {
                 printk (KERN_INFO "Missed interrupt... Calling int from timer. \n");
-                sx_interrupt (((struct specialix_board *)data)->irq, 
+                sx_interrupt (((struct specialix_board *)data)->irq,
                               (void*)data, NULL);
         }
         missed_irq_timer.expires = jiffies + sx_poll;
@@ -495,7 +489,7 @@ static int sx_probe(struct specialix_board *bp)
 
         func_enter();
 
-        if (sx_check_io_range(bp)) {
+        if (sx_request_io_range(bp)) {
                 func_exit();
                 return 1;
         }
@@ -509,15 +503,16 @@ static int sx_probe(struct specialix_board *bp)
         short_pause ();
         val2 = sx_in_off(bp, CD186x_PPRL);
 
-        
+
         if ((val1 != 0x5a) || (val2 != 0xa5)) {
                 printk(KERN_INFO "sx%d: specialix IO8+ Board at 0x%03x not found.\n",
                        board_No(bp), bp->base);
+                sx_release_io_range(bp);
                 func_exit();
                 return 1;
         }
 
-        /* Check the DSR lines that Specialix uses as board 
+        /* Check the DSR lines that Specialix uses as board
            identification */
         val1 = read_cross_byte (bp, CD186x_MSVR, MSVR_DSR);
         val2 = read_cross_byte (bp, CD186x_MSVR, MSVR_RTS);
@@ -532,6 +527,7 @@ static int sx_probe(struct specialix_board *bp)
         if (val1 != val2) {
                 printk(KERN_INFO "sx%d: specialix IO8+ ID %02x at 0x%03x not found (%02x).\n",
                        board_No(bp), val2, bp->base, val1);
+                sx_release_io_range(bp);
                 func_exit();
                 return 1;
         }
@@ -546,7 +542,7 @@ static int sx_probe(struct specialix_board *bp)
                 sx_wait_CCR(bp);
                 sx_out(bp, CD186x_CCR, CCR_TXEN);        /* Enable transmitter     */
                 sx_out(bp, CD186x_IER, IER_TXRDY);       /* Enable tx empty intr   */
-                sx_long_delay(HZ/20);                   
+                sx_long_delay(HZ/20);
                 irqs = probe_irq_off(irqs);
 
                 dprintk (SX_DEBUG_INIT, "SRSR = %02x, ", sx_in(bp, CD186x_SRSR));
@@ -561,14 +557,15 @@ static int sx_probe(struct specialix_board *bp)
                 }
 
                 dprintk (SX_DEBUG_INIT "val1 = %02x, val2 = %02x, val3 = %02x.\n",
-                        val1, val2, val3); 
-        
+                        val1, val2, val3);
+
         }
-        
+
 #if 0
         if (irqs <= 0) {
                 printk(KERN_ERR "sx%d: Can't find IRQ for specialix IO8+ board at 0x%03x.\n",
                        board_No(bp), bp->base);
+                sx_release_io_range(bp);
                 func_exit();
                 return 1;
         }
@@ -579,19 +576,20 @@ static int sx_probe(struct specialix_board *bp)
 #endif
         /* Reset CD186x again  */
         if (!sx_init_CD186x(bp)) {
+                sx_release_io_range(bp);
                 func_exit();
-                return -EIO;
+                return 1;
         }
 
         sx_request_io_range(bp);
         bp->flags |= SX_BOARD_PRESENT;
-        
+
         /* Chip           revcode   pkgtype
                           GFRCR     SRCR bit 7
            CD180 rev B    0x81      0
            CD180 rev C    0x82      0
            CD1864 rev A   0x82      1
-           CD1865 rev A   0x83      1  -- Do not use!!! Does not work. 
+           CD1865 rev A   0x83      1  -- Do not use!!! Does not work.
            CD1865 rev B   0x84      1
          -- Thanks to Gwen Wang, Cirrus Logic.
          */
@@ -623,8 +621,8 @@ static int sx_probe(struct specialix_board *bp)
         return 0;
 }
 
-/* 
- * 
+/*
+ *
  *  Interrupt processing routines.
  * */
 
@@ -657,7 +655,7 @@ static inline struct specialix_port * sx_get_port(struct specialix_board * bp,
                         return port;
                 }
         }
-        printk(KERN_INFO "sx%d: %s interrupt from invalid port %d\n", 
+        printk(KERN_INFO "sx%d: %s interrupt from invalid port %d\n",
                board_No(bp), what, channel);
         return NULL;
 }
@@ -681,7 +679,7 @@ static inline void sx_receive_exc(struct specialix_board * bp)
         tty = port->tty;
         dprintk (SX_DEBUG_RX, "port: %p count: %d BUFF_SIZE: %d\n",
                  port,  tty->flip.count, TTY_FLIPBUF_SIZE);
-        
+
         status = sx_in(bp, CD186x_RCSR);
 
         dprintk (SX_DEBUG_RX, "status: 0x%x\n", status);
@@ -707,30 +705,30 @@ static inline void sx_receive_exc(struct specialix_board * bp)
                 return;
         }
         if (status & RCSR_TOUT) {
-                printk(KERN_INFO "sx%d: port %d: Receiver timeout. Hardware problems ?\n", 
+                printk(KERN_INFO "sx%d: port %d: Receiver timeout. Hardware problems ?\n",
                        board_No(bp), port_No(port));
                 func_exit();
                 return;
-                
+
         } else if (status & RCSR_BREAK) {
                 dprintk(SX_DEBUG_RX, "sx%d: port %d: Handling break...\n",
                        board_No(bp), port_No(port));
                 *tty->flip.flag_buf_ptr++ = TTY_BREAK;
                 if (port->flags & ASYNC_SAK)
                         do_SAK(tty);
-                
-        } else if (status & RCSR_PE) 
+
+        } else if (status & RCSR_PE)
                 *tty->flip.flag_buf_ptr++ = TTY_PARITY;
-        
-        else if (status & RCSR_FE) 
+
+        else if (status & RCSR_FE)
                 *tty->flip.flag_buf_ptr++ = TTY_FRAME;
-        
+
         else if (status & RCSR_OE)
                 *tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
-        
+
         else
                 *tty->flip.flag_buf_ptr++ = 0;
-        
+
         *tty->flip.char_buf_ptr++ = ch;
         tty->flip.count++;
         schedule_delayed_work(&tty->flip.work, 1);
@@ -746,18 +744,18 @@ static inline void sx_receive(struct specialix_board * bp)
         unsigned char count;
 
         func_enter();
-        
+
         if (!(port = sx_get_port(bp, "Receive"))) {
                 dprintk (SX_DEBUG_RX, "Hmm, couldn't find port.\n");
                 func_exit();
                 return;
         }
         tty = port->tty;
-        
+
         count = sx_in(bp, CD186x_RDCR);
         dprintk (SX_DEBUG_RX, "port: %p: count: %d\n", port, count);
         port->hits[count > 8 ? 9 : count]++;
-        
+
         while (count--) {
                 if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
                         printk(KERN_INFO "sx%d: port %d: Working around flip buffer overflow.\n",
@@ -787,7 +785,7 @@ static inline void sx_transmit(struct specialix_board * bp)
         }
         dprintk (SX_DEBUG_TX, "port: %p\n", port);
         tty = port->tty;
-        
+
         if (port->IER & IER_TXEMPTY) {
                 /* FIFO drained */
                 sx_out(bp, CD186x_CAR, port_No(port));
@@ -796,7 +794,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 func_exit();
                 return;
         }
-        
+
         if ((port->xmit_cnt <= 0 && !port->break_length)
             || tty->stopped || tty->hw_stopped) {
                 sx_out(bp, CD186x_CAR, port_No(port));
@@ -805,7 +803,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 func_exit();
                 return;
         }
-        
+
         if (port->break_length) {
                 if (port->break_length > 0) {
                         if (port->COR2 & COR2_ETC) {
@@ -831,7 +829,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 func_exit();
                 return;
         }
-        
+
         count = CD186x_NFIFO;
         do {
                 sx_out(bp, CD186x_TDR, port->xmit_buf[port->xmit_tail++]);
@@ -839,7 +837,7 @@ static inline void sx_transmit(struct specialix_board * bp)
                 if (--port->xmit_cnt <= 0)
                         break;
         } while (--count > 0);
-        
+
         if (port->xmit_cnt <= 0) {
                 sx_out(bp, CD186x_CAR, port_No(port));
                 port->IER &= ~IER_TXRDY;
@@ -862,9 +860,9 @@ static inline void sx_check_modem(struct specialix_board * bp)
         dprintk (SX_DEBUG_SIGNALS, "Modem intr. ");
         if (!(port = sx_get_port(bp, "Modem")))
                 return;
-        
+
         tty = port->tty;
-        
+
         mcr = sx_in(bp, CD186x_MCR);
         printk ("mcr = %02x.\n", mcr);
 
@@ -879,7 +877,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
                         schedule_work(&port->tqueue_hangup);
                 }
         }
-        
+
 #ifdef SPECIALIX_BRAIN_DAMAGED_CTS
         if (mcr & MCR_CTSCHG) {
                 if (sx_in(bp, CD186x_MSVR) & MSVR_CTS) {
@@ -906,7 +904,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
                 sx_out(bp, CD186x_IER, port->IER);
         }
 #endif /* SPECIALIX_BRAIN_DAMAGED_CTS */
-        
+
         /* Clear change bits */
         sx_out(bp, CD186x_MCR, 0);
 }
@@ -940,7 +938,7 @@ static irqreturn_t sx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
         while ((++loop < 16) && (status = (sx_in(bp, CD186x_SRSR) &
                                            (SRSR_RREQint |
                                             SRSR_TREQint |
-                                            SRSR_MREQint)))) {  
+                                            SRSR_MREQint)))) {
                 if (status & SRSR_RREQint) {
                         ack = sx_in(bp, CD186x_RRAR);
 
@@ -951,7 +949,7 @@ static irqreturn_t sx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                         else
                                 printk(KERN_ERR "sx%d: status: 0x%x Bad receive ack 0x%02x.\n",
                                        board_No(bp), status, ack);
-                
+
                 } else if (status & SRSR_TREQint) {
                         ack = sx_in(bp, CD186x_TRAR);
 
@@ -963,13 +961,13 @@ static irqreturn_t sx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                 } else if (status & SRSR_MREQint) {
                         ack = sx_in(bp, CD186x_MRAR);
 
-                        if (ack == (SX_ID | GIVR_IT_MODEM)) 
+                        if (ack == (SX_ID | GIVR_IT_MODEM))
                                 sx_check_modem(bp);
                         else
                                 printk(KERN_ERR "sx%d: status: 0x%x Bad modem ack 0x%02x.\n",
                                        board_No(bp), status, ack);
-                
-                } 
+
+                }
 
                 sx_out(bp, CD186x_EOIR, 0);   /* Mark end of interrupt */
         }
@@ -1026,7 +1024,7 @@ static inline int sx_setup_board(struct specialix_board * bp)
 {
         int error;
 
-        if (bp->flags & SX_BOARD_ACTIVE) 
+        if (bp->flags & SX_BOARD_ACTIVE)
                 return 0;
 
         if (bp->flags & SX_BOARD_IS_PCI)
@@ -1034,7 +1032,7 @@ static inline int sx_setup_board(struct specialix_board * bp)
         else
                 error = request_irq(bp->irq, sx_interrupt, SA_INTERRUPT, "specialix IO8+", bp);
 
-        if (error) 
+        if (error)
                 return error;
 
         turn_ints_on (bp);
@@ -1055,7 +1053,7 @@ static inline void sx_shutdown_board(struct specialix_board *bp)
         }
 
         bp->flags &= ~SX_BOARD_ACTIVE;
-        
+
         dprintk (SX_DEBUG_IRQ, "Freeing IRQ%d for board %d.\n",
                  bp->irq, board_No (bp));
         free_irq(bp->irq, bp);
@@ -1068,7 +1066,7 @@ static inline void sx_shutdown_board(struct specialix_board *bp)
 
 
 /*
- * Setting up port characteristics. 
+ * Setting up port characteristics.
  * Must be called with disabled interrupts
  */
 static void sx_change_speed(struct specialix_board *bp, struct specialix_port *port)
@@ -1103,10 +1101,10 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
         spin_unlock_irqrestore(&bp->lock, flags);
         dprintk (SX_DEBUG_TERMIOS, "sx: got MSVR=%02x.\n", port->MSVR);
         baud = C_BAUD(tty);
-        
+
         if (baud & CBAUDEX) {
                 baud &= ~CBAUDEX;
-                if (baud < 1 || baud > 2) 
+                if (baud < 1 || baud > 2)
                         port->tty->termios->c_cflag &= ~CBAUDEX;
                 else
                         baud += 15;
@@ -1117,8 +1115,8 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
                         baud += 2;
         }
-        
-        
+
+
         if (!baud_table[baud]) {
                 /* Drop DTR & exit */
                 dprintk (SX_DEBUG_TERMIOS, "Dropping DTR...  Hmm....\n");
@@ -1127,7 +1125,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                         spin_lock_irqsave(&bp->lock, flags);
                         sx_out(bp, CD186x_MSVR, port->MSVR );
                         spin_unlock_irqrestore(&bp->lock, flags);
-                } 
+                }
                 else
                         dprintk (SX_DEBUG_TERMIOS, "Can't drop DTR: no DTR.\n");
                 return;
@@ -1137,9 +1135,9 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                         port ->MSVR |= MSVR_DTR;
                 }
         }
-        
+
         /*
-         * Now we must calculate some speed depended things 
+         * Now we must calculate some speed depended things
          */
 
         /* Set baud rate for port */
@@ -1152,7 +1150,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 tmp = (((SX_OSCFREQ + baud_table[baud]/2) / baud_table[baud] +
                          CD186x_TPC/2) / CD186x_TPC);
 
-        if ((tmp < 0x10) && time_before(again, jiffies)) { 
+        if ((tmp < 0x10) && time_before(again, jiffies)) {
                 again = jiffies + HZ * 60;
                 /* Page 48 of version 2.0 of the CL-CD1865 databook */
                 if (tmp >= 12) {
@@ -1164,27 +1162,27 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                         printk (KERN_INFO "sx%d: Baud rate divisor is %ld. \n"
                                 "Warning: overstressing Cirrus chip. "
                                 "This might not work.\n"
-                                "Read specialix.txt for more info.\n", 
+                                "Read specialix.txt for more info.\n",
                                 port_No (port), tmp);
                 }
         }
         spin_lock_irqsave(&bp->lock, flags);
-        sx_out(bp, CD186x_RBPRH, (tmp >> 8) & 0xff); 
-        sx_out(bp, CD186x_TBPRH, (tmp >> 8) & 0xff); 
-        sx_out(bp, CD186x_RBPRL, tmp & 0xff); 
+        sx_out(bp, CD186x_RBPRH, (tmp >> 8) & 0xff);
+        sx_out(bp, CD186x_TBPRH, (tmp >> 8) & 0xff);
+        sx_out(bp, CD186x_RBPRL, tmp & 0xff);
         sx_out(bp, CD186x_TBPRL, tmp & 0xff);
         spin_unlock_irqrestore(&bp->lock, flags);
         if (port->custom_divisor) {
                 baud = (SX_OSCFREQ + port->custom_divisor/2) / port->custom_divisor;
                 baud = ( baud + 5 ) / 10;
-        } else 
+        } else
                 baud = (baud_table[baud] + 5) / 10;   /* Estimated CPS */
 
         /* Two timer ticks seems enough to wakeup something like SLIP driver */
-        tmp = ((baud + HZ/2) / HZ) * 2 - CD186x_NFIFO;          
+        tmp = ((baud + HZ/2) / HZ) * 2 - CD186x_NFIFO;
         port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
                                               SERIAL_XMIT_SIZE - 1 : tmp);
-        
+
         /* Receiver timeout will be transmission time for 1.5 chars */
         tmp = (SPECIALIX_TPS + SPECIALIX_TPS/2 + baud/2) / baud;
         tmp = (tmp > 0xff) ? 0xff : tmp;
@@ -1205,29 +1203,29 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 cor1 |= COR1_8BITS;
                 break;
         }
-        
-        if (C_CSTOPB(tty)) 
+
+        if (C_CSTOPB(tty))
                 cor1 |= COR1_2SB;
-        
+
         cor1 |= COR1_IGNORE;
         if (C_PARENB(tty)) {
                 cor1 |= COR1_NORMPAR;
-                if (C_PARODD(tty)) 
+                if (C_PARODD(tty))
                         cor1 |= COR1_ODDP;
-                if (I_INPCK(tty)) 
+                if (I_INPCK(tty))
                         cor1 &= ~COR1_IGNORE;
         }
         /* Set marking of some errors */
         port->mark_mask = RCSR_OE | RCSR_TOUT;
-        if (I_INPCK(tty)) 
+        if (I_INPCK(tty))
                 port->mark_mask |= RCSR_FE | RCSR_PE;
-        if (I_BRKINT(tty) || I_PARMRK(tty)) 
+        if (I_BRKINT(tty) || I_PARMRK(tty))
                 port->mark_mask |= RCSR_BREAK;
-        if (I_IGNPAR(tty)) 
+        if (I_IGNPAR(tty))
                 port->mark_mask &= ~(RCSR_FE | RCSR_PE);
         if (I_IGNBRK(tty)) {
                 port->mark_mask &= ~RCSR_BREAK;
-                if (I_IGNPAR(tty)) 
+                if (I_IGNPAR(tty))
                         /* Real raw mode. Ignore all */
                         port->mark_mask &= ~RCSR_OE;
         }
@@ -1241,7 +1239,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 tty->hw_stopped = !(sx_in(bp, CD186x_MSVR) & (MSVR_CTS|MSVR_DSR));
                 spin_unlock_irqrestore(&bp->lock, flags);
 #else
-                port->COR2 |= COR2_CTSAE; 
+                port->COR2 |= COR2_CTSAE;
 #endif
         }
         /* Enable Software Flow Control. FIXME: I'm not sure about this */
@@ -1264,11 +1262,11 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
                 mcor1 |= MCOR1_CDZD;
                 mcor2 |= MCOR2_CDOD;
         }
-        
-        if (C_CREAD(tty)) 
+
+        if (C_CREAD(tty))
                 /* Enable receiver */
                 port->IER |= IER_RXD;
-        
+
         /* Set input FIFO size (1-8 bytes) */
         cor3 |= sx_rxfifo;
         /* Setting up CD186x channel registers */
@@ -1311,11 +1309,11 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
                 func_exit();
                 return 0;
         }
-        
+
         if (!port->xmit_buf) {
                 /* We may sleep in get_zeroed_page() */
                 unsigned long tmp;
-                
+
                 if (!(tmp = get_zeroed_page(GFP_KERNEL))) {
                         func_exit();
                         return -ENOMEM;
@@ -1328,10 +1326,10 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
                 }
                 port->xmit_buf = (unsigned char *) tmp;
         }
-                
+
         spin_lock_irqsave(&port->lock, flags);
 
-        if (port->tty) 
+        if (port->tty)
                 clear_bit(TTY_IO_ERROR, &port->tty->flags);
 
         port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
@@ -1340,7 +1338,7 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
 
         spin_unlock_irqrestore(&port->lock, flags);
 
-                
+
         func_exit();
         return 0;
 }
@@ -1352,14 +1350,14 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
         struct tty_struct *tty;
         int i;
         unsigned long flags;
-        
+
         func_enter();
 
         if (!(port->flags & ASYNC_INITIALIZED)) {
                 func_exit();
                 return;
         }
-        
+
         if (sx_debug & SX_DEBUG_FIFO) {
                 dprintk(SX_DEBUG_FIFO, "sx%d: port %d: %ld overruns, FIFO hits [ ",
                         board_No(bp), port_No(port), port->overrun);
@@ -1394,13 +1392,13 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
         if (tty)
                 set_bit(TTY_IO_ERROR, &tty->flags);
         port->flags &= ~ASYNC_INITIALIZED;
-        
-        if (!bp->count) 
+
+        if (!bp->count)
                 sx_shutdown_board(bp);
         func_exit();
 }
 
-        
+
 static int block_til_ready(struct tty_struct *tty, struct file * filp,
                            struct specialix_port *port)
 {
@@ -1427,7 +1425,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
                         return -ERESTARTSYS;
                 }
         }
-        
+
         /*
          * If non-blocking mode is set, or the port is not enabled,
          * then make the check up front and then exit.
@@ -1477,7 +1475,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
                         if (port->flags & ASYNC_HUP_NOTIFY)
                                 retval = -EAGAIN;
                         else
-                                retval = -ERESTARTSYS;  
+                                retval = -ERESTARTSYS;
                         break;
                 }
                 if (!(port->flags & ASYNC_CLOSING) &&
@@ -1506,7 +1504,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
         port->flags |= ASYNC_NORMAL_ACTIVE;
         func_exit();
         return 0;
-}       
+}
 
 
 static int sx_open(struct tty_struct * tty, struct file * filp)
@@ -1526,7 +1524,7 @@ static int sx_open(struct tty_struct * tty, struct file * filp)
                 func_exit();
                 return -ENODEV;
         }
-        
+
         bp = &sx_board[board];
         port = sx_port + board * SX_NPORT + SX_PORT(tty->index);
         port->overrun = 0;
@@ -1557,7 +1555,7 @@ static int sx_open(struct tty_struct * tty, struct file * filp)
                 func_enter();
                 return error;
         }
-        
+
         if ((error = block_til_ready(tty, filp, port))) {
                 func_enter();
                 return error;
@@ -1574,7 +1572,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
         struct specialix_board *bp;
         unsigned long flags;
         unsigned long timeout;
-        
+
         func_enter();
         if (!port || sx_paranoia_check(port, tty->name, "close")) {
                 func_exit();
@@ -1587,7 +1585,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
         if ((tty->count == 1) && (port->count != 1)) {
                 printk(KERN_ERR "sx%d: sx_close: bad port count;"
@@ -1607,7 +1605,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
         }
         port->flags |= ASYNC_CLOSING;
         /*
-         * Now we wait for the transmit buffer to clear; and we notify 
+         * Now we wait for the transmit buffer to clear; and we notify
          * the line discipline to only process XON/XOFF characters.
          */
         tty->closing = 1;
@@ -1681,7 +1679,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 }
 
 
-static int sx_write(struct tty_struct * tty, 
+static int sx_write(struct tty_struct * tty,
                     const unsigned char *buf, int count)
 {
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
@@ -1694,7 +1692,7 @@ static int sx_write(struct tty_struct * tty,
                 func_exit();
                 return 0;
         }
-        
+
         bp = port_Board(port);
 
         if (!tty || !port->xmit_buf || !tmp_buf) {
@@ -1824,7 +1822,7 @@ static int sx_chars_in_buffer(struct tty_struct *tty)
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
 
         func_enter();
-        
+
         if (sx_paranoia_check(port, tty->name, "sx_chars_in_buffer")) {
                 func_exit();
                 return 0;
@@ -1881,13 +1879,13 @@ static int sx_tiocmget(struct tty_struct *tty, struct file *file)
                 port_No(port), status, sx_in (bp, CD186x_CAR));
         dprintk (SX_DEBUG_INIT, "sx_port = %p, port = %p\n", sx_port, port);
         if (SX_CRTSCTS(port->tty)) {
-                result  = /*   (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */ 
+                result  = /*   (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */
                           |   ((status & MSVR_DTR) ? TIOCM_RTS : 0)
                           |   ((status & MSVR_CD)  ? TIOCM_CAR : 0)
                           |/* ((status & MSVR_DSR) ? */ TIOCM_DSR /* : 0) */
                           |   ((status & MSVR_CTS) ? TIOCM_CTS : 0);
         } else {
-                result  = /*   (status & MSVR_RTS) ? */ TIOCM_RTS /* : 0) */ 
+                result  = /*   (status & MSVR_RTS) ? */ TIOCM_RTS /* : 0) */
                           |   ((status & MSVR_DTR) ? TIOCM_DTR : 0)
                           |   ((status & MSVR_CD)  ? TIOCM_CAR : 0)
                           |/* ((status & MSVR_DSR) ? */ TIOCM_DSR /* : 0) */
@@ -1955,7 +1953,7 @@ static inline void sx_send_break(struct specialix_port * port, unsigned long len
 {
         struct specialix_board *bp = port_Board(port);
         unsigned long flags;
-        
+
         func_enter();
 
         spin_lock_irqsave (&port->lock, flags);
@@ -1996,8 +1994,8 @@ static inline int sx_set_serial_info(struct specialix_port * port,
                 func_enter();
                 return -EFAULT;
         }
-        
-#if 0   
+
+#if 0
         if ((tmp.irq != bp->irq) ||
             (tmp.port != bp->base) ||
             (tmp.type != PORT_CIRRUS) ||
@@ -2008,12 +2006,12 @@ static inline int sx_set_serial_info(struct specialix_port * port,
                 func_exit();
                 return -EINVAL;
         }
-#endif  
+#endif
 
         change_speed = ((port->flags & ASYNC_SPD_MASK) !=
                         (tmp.flags & ASYNC_SPD_MASK));
         change_speed |= (tmp.custom_divisor != port->custom_divisor);
-        
+
         if (!capable(CAP_SYS_ADMIN)) {
                 if ((tmp.close_delay != port->close_delay) ||
                     (tmp.closing_wait != port->closing_wait) ||
@@ -2045,7 +2043,7 @@ static inline int sx_get_serial_info(struct specialix_port * port,
 {
         struct serial_struct tmp;
         struct specialix_board *bp = port_Board(port);
-        
+
         func_enter();
 
         /*
@@ -2074,7 +2072,7 @@ static inline int sx_get_serial_info(struct specialix_port * port,
 }
 
 
-static int sx_ioctl(struct tty_struct * tty, struct file * filp, 
+static int sx_ioctl(struct tty_struct * tty, struct file * filp,
                     unsigned int cmd, unsigned long arg)
 {
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
@@ -2087,7 +2085,7 @@ static int sx_ioctl(struct tty_struct * tty, struct file * filp,
                 func_exit();
                 return -ENODEV;
         }
-        
+
         switch (cmd) {
          case TCSBRK:   /* SVID version: non-zero arg --> no break */
                 retval = tty_check_change(tty);
@@ -2129,7 +2127,7 @@ static int sx_ioctl(struct tty_struct * tty, struct file * filp,
          case TIOCGSERIAL:
                  func_exit();
                 return sx_get_serial_info(port, argp);
-         case TIOCSSERIAL:      
+         case TIOCSSERIAL:
                  func_exit();
                 return sx_set_serial_info(port, argp);
          default:
@@ -2153,16 +2151,16 @@ static void sx_throttle(struct tty_struct * tty)
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         /* Use DTR instead of RTS ! */
-        if (SX_CRTSCTS (tty)) 
+        if (SX_CRTSCTS (tty))
                 port->MSVR &= ~MSVR_DTR;
         else {
                 /* Auch!!! I think the system shouldn't call this then. */
                 /* Or maybe we're supposed (allowed?) to do our side of hw
-                   handshake anyway, even when hardware handshake is off. 
+                   handshake anyway, even when hardware handshake is off.
                    When you see this in your logs, please report.... */
                 printk (KERN_ERR "sx%d: Need to throttle, but can't (hardware hs is off)\n",
                          port_No (port));
@@ -2193,14 +2191,14 @@ static void sx_unthrottle(struct tty_struct * tty)
         unsigned long flags;
 
         func_enter();
-                                
+
         if (sx_paranoia_check(port, tty->name, "sx_unthrottle")) {
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         spin_lock_irqsave(&port->lock, flags);
         /* XXXX Use DTR INSTEAD???? */
         if (SX_CRTSCTS(tty)) {
@@ -2234,14 +2232,14 @@ static void sx_stop(struct tty_struct * tty)
         unsigned long flags;
 
         func_enter();
-        
+
         if (sx_paranoia_check(port, tty->name, "sx_stop")) {
                 func_exit();
                 return;
         }
 
         bp = port_Board(port);
-        
+
         spin_lock_irqsave(&port->lock, flags);
         port->IER &= ~IER_TXRDY;
         spin_lock_irqsave(&bp->lock, flags);
@@ -2261,14 +2259,14 @@ static void sx_start(struct tty_struct * tty)
         unsigned long flags;
 
         func_enter();
-                                
+
         if (sx_paranoia_check(port, tty->name, "sx_start")) {
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         spin_lock_irqsave(&port->lock, flags);
         if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) {
                 port->IER |= IER_TXRDY;
@@ -2290,13 +2288,13 @@ static void sx_start(struct tty_struct * tty)
  *
  *      serial interrupt routine -> (workqueue) ->
  *      do_sx_hangup() -> tty->hangup() -> sx_hangup()
- * 
+ *
  */
 static void do_sx_hangup(void *private_)
 {
         struct specialix_port   *port = (struct specialix_port *) private_;
         struct tty_struct       *tty;
-        
+
         func_enter();
 
         tty = port->tty;
@@ -2319,9 +2317,9 @@ static void sx_hangup(struct tty_struct * tty)
                 func_exit();
                 return;
         }
-        
+
         bp = port_Board(port);
-        
+
         sx_shutdown_port(bp, port);
         spin_lock_irqsave(&port->lock, flags);
         port->event = 0;
@@ -2346,10 +2344,10 @@ static void sx_set_termios(struct tty_struct * tty, struct termios * old_termios
         struct specialix_port *port = (struct specialix_port *)tty->driver_data;
         unsigned long flags;
         struct specialix_board  * bp;
-                                
+
         if (sx_paranoia_check(port, tty->name, "sx_set_termios"))
                 return;
-        
+
         if (tty->termios->c_cflag == old_termios->c_cflag &&
             tty->termios->c_iflag == old_termios->c_iflag)
                 return;
@@ -2420,7 +2418,7 @@ static int sx_init_drivers(void)
                 func_exit();
                 return 1;
         }
-        
+
         if (!(tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL))) {
                 printk(KERN_ERR "sx: Couldn't get free page.\n");
                 put_tty_driver(specialix_driver);
@@ -2457,7 +2455,7 @@ static int sx_init_drivers(void)
                 init_waitqueue_head(&sx_port[i].close_wait);
                 spin_lock_init(&sx_port[i].lock);
         }
-        
+
         func_exit();
         return 0;
 }
@@ -2472,8 +2470,8 @@ static void sx_release_drivers(void)
         func_exit();
 }
 
-/* 
- * This routine must be called by kernel at boot time 
+/*
+ * This routine must be called by kernel at boot time
  */
 static int __init specialix_init(void)
 {
@@ -2489,7 +2487,7 @@ static int __init specialix_init(void)
 #else
         printk (KERN_INFO "sx: DTR/RTS pin is RTS when CRTSCTS is on.\n");
 #endif
-        
+
         for (i = 0; i < SX_NBOARD; i++)
                 sx_board[i].lock = SPIN_LOCK_UNLOCKED;
 
@@ -2498,7 +2496,7 @@ static int __init specialix_init(void)
                 return -EIO;
         }
 
-        for (i = 0; i < SX_NBOARD; i++) 
+        for (i = 0; i < SX_NBOARD; i++)
                 if (sx_board[i].base && !sx_probe(&sx_board[i]))
                         found++;
 
@@ -2512,8 +2510,8 @@ static int __init specialix_init(void)
                                 i++;
                                 continue;
                         }
-                        pdev = pci_find_device (PCI_VENDOR_ID_SPECIALIX, 
-                                                PCI_DEVICE_ID_SPECIALIX_IO8, 
+                        pdev = pci_find_device (PCI_VENDOR_ID_SPECIALIX,
+                                                PCI_DEVICE_ID_SPECIALIX_IO8,
                                                 pdev);
                         if (!pdev) break;
 
@@ -2557,10 +2555,10 @@ module_param(sx_poll, int, 0);
 /*
  * You can setup up to 4 boards.
  * by specifying "iobase=0xXXX,0xXXX ..." as insmod parameter.
- * You should specify the IRQs too in that case "irq=....,...". 
- * 
+ * You should specify the IRQs too in that case "irq=....,...".
+ *
  * More than 4 boards in one computer is not possible, as the card can
- * only use 4 different interrupts. 
+ * only use 4 different interrupts.
  *
  */
 static int __init specialix_init_module(void)
@@ -2583,16 +2581,16 @@ static int __init specialix_init_module(void)
 
         return specialix_init();
 }
-        
+
 static void __exit specialix_exit_module(void)
 {
         int i;
-        
+
         func_enter();
 
         sx_release_drivers();
         for (i = 0; i < SX_NBOARD; i++)
-                if (sx_board[i].flags & SX_BOARD_PRESENT) 
+                if (sx_board[i].flags & SX_BOARD_PRESENT)
                         sx_release_io_range(&sx_board[i]);
 #ifdef SPECIALIX_TIMER
         del_timer (&missed_irq_timer);
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index ea2d54be4843..0133dc0e25d0 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -912,6 +912,7 @@ MODULE_DEVICE_TABLE(pci, synclink_pci_tbl);
 MODULE_LICENSE("GPL");
 
 static struct pci_driver synclink_pci_driver = {
+        .owner          = THIS_MODULE,
         .name           = "synclink",
         .id_table       = synclink_pci_tbl,
         .probe          = synclink_init_one,
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 6fb165cf8a61..f185724448b1 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -500,6 +500,7 @@ MODULE_DEVICE_TABLE(pci, synclinkmp_pci_tbl);
 MODULE_LICENSE("GPL");
 
 static struct pci_driver synclinkmp_pci_driver = {
+        .owner          = THIS_MODULE,
         .name           = "synclinkmp",
         .id_table       = synclinkmp_pci_tbl,
         .probe          = synclinkmp_init_one,
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
new file mode 100644
index 000000000000..18cdd4361dc6
--- /dev/null
+++ b/drivers/char/tlclk.c
@@ -0,0 +1,896 @@
+/*
+ * Telecom Clock driver for Intel NetStructure(tm) MPCBL0010
+ *
+ * Copyright (C) 2005 Kontron Canada
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <sebastien.bouchard@ca.kontron.com> and the current
+ * Maintainer  <mark.gross@intel.com>
+ *
+ * Description : This is the TELECOM CLOCK module driver for the ATCA
+ * MPCBL0010 ATCA computer.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>       /* printk() */
+#include <linux/fs.h>           /* everything... */
+#include <linux/errno.h>        /* error codes */
+#include <linux/delay.h>        /* udelay */
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/miscdevice.h>
+#include <asm/io.h>             /* inb/outb */
+#include <asm/uaccess.h>
+
+MODULE_AUTHOR("Sebastien Bouchard <sebastien.bouchard@ca.kontron.com>");
+MODULE_LICENSE("GPL");
+
+/*Hardware Reset of the PLL */
+#define RESET_ON        0x00
+#define RESET_OFF       0x01
+
+/* MODE SELECT */
+#define NORMAL_MODE     0x00
+#define HOLDOVER_MODE   0x10
+#define FREERUN_MODE    0x20
+
+/* FILTER SELECT */
+#define FILTER_6HZ      0x04
+#define FILTER_12HZ     0x00
+
+/* SELECT REFERENCE FREQUENCY */
+#define REF_CLK1_8kHz           0x00
+#define REF_CLK2_19_44MHz       0x02
+
+/* Select primary or secondary redundant clock */
+#define PRIMARY_CLOCK   0x00
+#define SECONDARY_CLOCK 0x01
+
+/* CLOCK TRANSMISSION DEFINE */
+#define CLK_8kHz        0xff
+#define CLK_16_384MHz   0xfb
+
+#define CLK_1_544MHz    0x00
+#define CLK_2_048MHz    0x01
+#define CLK_4_096MHz    0x02
+#define CLK_6_312MHz    0x03
+#define CLK_8_192MHz    0x04
+#define CLK_19_440MHz   0x06
+
+#define CLK_8_592MHz    0x08
+#define CLK_11_184MHz   0x09
+#define CLK_34_368MHz   0x0b
+#define CLK_44_736MHz   0x0a
+
+/* RECEIVED REFERENCE */
+#define AMC_B1 0
+#define AMC_B2 1
+
+/* HARDWARE SWITCHING DEFINE */
+#define HW_ENABLE       0x80
+#define HW_DISABLE      0x00
+
+/* HARDWARE SWITCHING MODE DEFINE */
+#define PLL_HOLDOVER    0x40
+#define LOST_CLOCK      0x00
+
+/* ALARMS DEFINE */
+#define UNLOCK_MASK     0x10
+#define HOLDOVER_MASK   0x20
+#define SEC_LOST_MASK   0x40
+#define PRI_LOST_MASK   0x80
+
+/* INTERRUPT CAUSE DEFINE */
+
+#define PRI_LOS_01_MASK         0x01
+#define PRI_LOS_10_MASK         0x02
+
+#define SEC_LOS_01_MASK         0x04
+#define SEC_LOS_10_MASK         0x08
+
+#define HOLDOVER_01_MASK        0x10
+#define HOLDOVER_10_MASK        0x20
+
+#define UNLOCK_01_MASK          0x40
+#define UNLOCK_10_MASK          0x80
+
+struct tlclk_alarms {
+        __u32 lost_clocks;
+        __u32 lost_primary_clock;
+        __u32 lost_secondary_clock;
+        __u32 primary_clock_back;
+        __u32 secondary_clock_back;
+        __u32 switchover_primary;
+        __u32 switchover_secondary;
+        __u32 pll_holdover;
+        __u32 pll_end_holdover;
+        __u32 pll_lost_sync;
+        __u32 pll_sync;
+};
+/* Telecom clock I/O register definition */
+#define TLCLK_BASE 0xa08
+#define TLCLK_REG0 TLCLK_BASE
+#define TLCLK_REG1 (TLCLK_BASE+1)
+#define TLCLK_REG2 (TLCLK_BASE+2)
+#define TLCLK_REG3 (TLCLK_BASE+3)
+#define TLCLK_REG4 (TLCLK_BASE+4)
+#define TLCLK_REG5 (TLCLK_BASE+5)
+#define TLCLK_REG6 (TLCLK_BASE+6)
+#define TLCLK_REG7 (TLCLK_BASE+7)
+
+#define SET_PORT_BITS(port, mask, val) outb(((inb(port) & mask) | val), port)
+
+/* 0 = Dynamic allocation of the major device number */
+#define TLCLK_MAJOR 0
+
+/* sysfs interface definition:
+Upon loading the driver will create a sysfs directory under
+/sys/devices/platform/telco_clock.
+
+This directory exports the following interfaces.  There operation is
+documented in the MCPBL0010 TPS under the Telecom Clock API section, 11.4.
+alarms                          :
+current_ref                     :
+enable_clk3a_output             :
+enable_clk3b_output             :
+enable_clka0_output             :
+enable_clka1_output             :
+enable_clkb0_output             :
+enable_clkb1_output             :
+filter_select                   :
+hardware_switching              :
+hardware_switching_mode         :
+interrupt_switch                :
+mode_select                     :
+refalign                        :
+reset                           :
+select_amcb1_transmit_clock     :
+select_amcb2_transmit_clock     :
+select_redundant_clock          :
+select_ref_frequency            :
+test_mode                       :
+
+All sysfs interfaces are integers in hex format, i.e echo 99 > refalign
+has the same effect as echo 0x99 > refalign.
+*/
+
+static unsigned int telclk_interrupt;
+
+static int int_events;          /* Event that generate a interrupt */
+static int got_event;           /* if events processing have been done */
+
+static void switchover_timeout(unsigned long data);
+static struct timer_list switchover_timer =
+        TIMER_INITIALIZER(switchover_timeout , 0, 0);
+
+static struct tlclk_alarms *alarm_events;
+
+static DEFINE_SPINLOCK(event_lock);
+
+static int tlclk_major = TLCLK_MAJOR;
+
+static irqreturn_t tlclk_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+
+static DECLARE_WAIT_QUEUE_HEAD(wq);
+
+static int tlclk_open(struct inode *inode, struct file *filp)
+{
+        int result;
+
+        /* Make sure there is no interrupt pending while
+         * initialising interrupt handler */
+        inb(TLCLK_REG6);
+
+        /* This device is wired through the FPGA IO space of the ATCA blade
+         * we can't share this IRQ */
+        result = request_irq(telclk_interrupt, &tlclk_interrupt,
+                             SA_INTERRUPT, "telco_clock", tlclk_interrupt);
+        if (result == -EBUSY) {
+                printk(KERN_ERR "telco_clock: Interrupt can't be reserved!\n");
+                return -EBUSY;
+        }
+        inb(TLCLK_REG6);        /* Clear interrupt events */
+
+        return 0;
+}
+
+static int tlclk_release(struct inode *inode, struct file *filp)
+{
+        free_irq(telclk_interrupt, tlclk_interrupt);
+
+        return 0;
+}
+
+ssize_t tlclk_read(struct file *filp, char __user *buf, size_t count,
+                loff_t *f_pos)
+{
+        if (count < sizeof(struct tlclk_alarms))
+                return -EIO;
+
+        wait_event_interruptible(wq, got_event);
+        if (copy_to_user(buf, alarm_events, sizeof(struct tlclk_alarms)))
+                return -EFAULT;
+
+        memset(alarm_events, 0, sizeof(struct tlclk_alarms));
+        got_event = 0;
+
+        return  sizeof(struct tlclk_alarms);
+}
+
+ssize_t tlclk_write(struct file *filp, const char __user *buf, size_t count,
+            loff_t *f_pos)
+{
+        return 0;
+}
+
+static struct file_operations tlclk_fops = {
+        .read = tlclk_read,
+        .write = tlclk_write,
+        .open = tlclk_open,
+        .release = tlclk_release,
+
+};
+
+static struct miscdevice tlclk_miscdev = {
+        .minor = MISC_DYNAMIC_MINOR,
+        .name = "telco_clock",
+        .fops = &tlclk_fops,
+};
+
+static ssize_t show_current_ref(struct device *d,
+                struct device_attribute *attr, char *buf)
+{
+        unsigned long ret_val;
+        unsigned long flags;
+
+        spin_lock_irqsave(&event_lock, flags);
+        ret_val = ((inb(TLCLK_REG1) & 0x08) >> 3);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return sprintf(buf, "0x%lX\n", ret_val);
+}
+
+static DEVICE_ATTR(current_ref, S_IRUGO, show_current_ref, NULL);
+
+
+static ssize_t show_interrupt_switch(struct device *d,
+                struct device_attribute *attr, char *buf)
+{
+        unsigned long ret_val;
+        unsigned long flags;
+
+        spin_lock_irqsave(&event_lock, flags);
+        ret_val = inb(TLCLK_REG6);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return sprintf(buf, "0x%lX\n", ret_val);
+}
+
+static DEVICE_ATTR(interrupt_switch, S_IRUGO,
+                show_interrupt_switch, NULL);
+
+static ssize_t show_alarms(struct device *d,
+                struct device_attribute *attr,  char *buf)
+{
+        unsigned long ret_val;
+        unsigned long flags;
+
+        spin_lock_irqsave(&event_lock, flags);
+        ret_val = (inb(TLCLK_REG2) & 0xf0);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return sprintf(buf, "0x%lX\n", ret_val);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t store_enable_clk3b_output(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, ": tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG3, 0x7f, val << 7);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable_clk3b_output, S_IWUGO, NULL,
+                store_enable_clk3b_output);
+
+static ssize_t store_enable_clk3a_output(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG3, 0xbf, val << 6);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable_clk3a_output, S_IWUGO, NULL,
+                store_enable_clk3a_output);
+
+static ssize_t store_enable_clkb1_output(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG2, 0xf7, val << 3);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable_clkb1_output, S_IWUGO, NULL,
+                store_enable_clkb1_output);
+
+
+static ssize_t store_enable_clka1_output(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG2, 0xfb, val << 2);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable_clka1_output, S_IWUGO, NULL,
+                store_enable_clka1_output);
+
+static ssize_t store_enable_clkb0_output(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG2, 0xfd, val << 1);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable_clkb0_output, S_IWUGO, NULL,
+                store_enable_clkb0_output);
+
+static ssize_t store_enable_clka0_output(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG2, 0xfe, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable_clka0_output, S_IWUGO, NULL,
+                store_enable_clka0_output);
+
+static ssize_t store_test_mode(struct device *d,
+                struct device_attribute *attr,  const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG4, 0xfd, 2);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(test_mode, S_IWUGO, NULL, store_test_mode);
+
+static ssize_t store_select_amcb2_transmit_clock(struct device *d,
+                struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long flags;
+        unsigned long tmp;
+        unsigned char val;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+                if ((val == CLK_8kHz) || (val == CLK_16_384MHz)) {
+                        SET_PORT_BITS(TLCLK_REG3, 0xc7, 0x28);
+                        SET_PORT_BITS(TLCLK_REG1, 0xfb, ~val);
+                } else if (val >= CLK_8_592MHz) {
+                        SET_PORT_BITS(TLCLK_REG3, 0xc7, 0x38);
+                        switch (val) {
+                        case CLK_8_592MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 1);
+                                break;
+                        case CLK_11_184MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 0);
+                                break;
+                        case CLK_34_368MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 3);
+                                break;
+                        case CLK_44_736MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 2);
+                                break;
+                        }
+                } else
+                        SET_PORT_BITS(TLCLK_REG3, 0xc7, val << 3);
+
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(select_amcb2_transmit_clock, S_IWUGO, NULL,
+        store_select_amcb2_transmit_clock);
+
+static ssize_t store_select_amcb1_transmit_clock(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+                if ((val == CLK_8kHz) || (val == CLK_16_384MHz)) {
+                        SET_PORT_BITS(TLCLK_REG3, 0xf8, 0x5);
+                        SET_PORT_BITS(TLCLK_REG1, 0xfb, ~val);
+                } else if (val >= CLK_8_592MHz) {
+                        SET_PORT_BITS(TLCLK_REG3, 0xf8, 0x7);
+                        switch (val) {
+                        case CLK_8_592MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 1);
+                                break;
+                        case CLK_11_184MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 0);
+                                break;
+                        case CLK_34_368MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 3);
+                                break;
+                        case CLK_44_736MHz:
+                                SET_PORT_BITS(TLCLK_REG0, 0xfc, 2);
+                                break;
+                        }
+                } else
+                        SET_PORT_BITS(TLCLK_REG3, 0xf8, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(select_amcb1_transmit_clock, S_IWUGO, NULL,
+                store_select_amcb1_transmit_clock);
+
+static ssize_t store_select_redundant_clock(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG1, 0xfe, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(select_redundant_clock, S_IWUGO, NULL,
+                store_select_redundant_clock);
+
+static ssize_t store_select_ref_frequency(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG1, 0xfd, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(select_ref_frequency, S_IWUGO, NULL,
+                store_select_ref_frequency);
+
+static ssize_t store_filter_select(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG0, 0xfb, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(filter_select, S_IWUGO, NULL, store_filter_select);
+
+static ssize_t store_hardware_switching_mode(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG0, 0xbf, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(hardware_switching_mode, S_IWUGO, NULL,
+                store_hardware_switching_mode);
+
+static ssize_t store_hardware_switching(struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG0, 0x7f, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(hardware_switching, S_IWUGO, NULL,
+                store_hardware_switching);
+
+static ssize_t store_refalign (struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG0, 0xf7, 0);
+        udelay(2);
+        SET_PORT_BITS(TLCLK_REG0, 0xf7, 0x08);
+        udelay(2);
+        SET_PORT_BITS(TLCLK_REG0, 0xf7, 0);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(refalign, S_IWUGO, NULL, store_refalign);
+
+static ssize_t store_mode_select (struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG0, 0xcf, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(mode_select, S_IWUGO, NULL, store_mode_select);
+
+static ssize_t store_reset (struct device *d,
+                 struct device_attribute *attr, const char *buf, size_t count)
+{
+        unsigned long tmp;
+        unsigned char val;
+        unsigned long flags;
+
+        sscanf(buf, "%lX", &tmp);
+        dev_dbg(d, "tmp = 0x%lX\n", tmp);
+
+        val = (unsigned char)tmp;
+        spin_lock_irqsave(&event_lock, flags);
+        SET_PORT_BITS(TLCLK_REG4, 0xfd, val);
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(reset, S_IWUGO, NULL, store_reset);
+
+static struct attribute *tlclk_sysfs_entries[] = {
+        &dev_attr_current_ref.attr,
+        &dev_attr_interrupt_switch.attr,
+        &dev_attr_alarms.attr,
+        &dev_attr_enable_clk3a_output.attr,
+        &dev_attr_enable_clk3b_output.attr,
+        &dev_attr_enable_clkb1_output.attr,
+        &dev_attr_enable_clka1_output.attr,
+        &dev_attr_enable_clkb0_output.attr,
+        &dev_attr_enable_clka0_output.attr,
+        &dev_attr_test_mode.attr,
+        &dev_attr_select_amcb1_transmit_clock.attr,
+        &dev_attr_select_amcb2_transmit_clock.attr,
+        &dev_attr_select_redundant_clock.attr,
+        &dev_attr_select_ref_frequency.attr,
+        &dev_attr_filter_select.attr,
+        &dev_attr_hardware_switching_mode.attr,
+        &dev_attr_hardware_switching.attr,
+        &dev_attr_refalign.attr,
+        &dev_attr_mode_select.attr,
+        &dev_attr_reset.attr,
+        NULL
+};
+
+static struct attribute_group tlclk_attribute_group = {
+        .name = NULL,           /* put in device directory */
+        .attrs = tlclk_sysfs_entries,
+};
+
+static struct platform_device *tlclk_device;
+
+static int __init tlclk_init(void)
+{
+        int ret;
+
+        ret = register_chrdev(tlclk_major, "telco_clock", &tlclk_fops);
+        if (ret < 0) {
+                printk(KERN_ERR "telco_clock: can't get major! %d\n", tlclk_major);
+                return ret;
+        }
+        alarm_events = kzalloc( sizeof(struct tlclk_alarms), GFP_KERNEL);
+        if (!alarm_events)
+                goto out1;
+
+        /* Read telecom clock IRQ number (Set by BIOS) */
+        if (!request_region(TLCLK_BASE, 8, "telco_clock")) {
+                printk(KERN_ERR "tlclk: request_region failed! 0x%X\n",
+                        TLCLK_BASE);
+                ret = -EBUSY;
+                goto out2;
+        }
+        telclk_interrupt = (inb(TLCLK_REG7) & 0x0f);
+
+        if (0x0F == telclk_interrupt ) { /* not MCPBL0010 ? */
+                printk(KERN_ERR "telclk_interrup = 0x%x non-mcpbl0010 hw\n",
+                        telclk_interrupt);
+                ret = -ENXIO;
+                goto out3;
+        }
+
+        init_timer(&switchover_timer);
+
+        ret = misc_register(&tlclk_miscdev);
+        if (ret < 0) {
+                printk(KERN_ERR " misc_register retruns %d\n", ret);
+                ret = -EBUSY;
+                goto out3;
+        }
+
+        tlclk_device = platform_device_register_simple("telco_clock",
+                                -1, NULL, 0);
+        if (!tlclk_device) {
+                printk(KERN_ERR " platform_device_register retruns 0x%X\n",
+                        (unsigned int) tlclk_device);
+                ret = -EBUSY;
+                goto out4;
+        }
+
+        ret = sysfs_create_group(&tlclk_device->dev.kobj,
+                        &tlclk_attribute_group);
+        if (ret) {
+                printk(KERN_ERR "failed to create sysfs device attributes\n");
+                sysfs_remove_group(&tlclk_device->dev.kobj,
+                        &tlclk_attribute_group);
+                goto out5;
+        }
+
+        return 0;
+out5:
+        platform_device_unregister(tlclk_device);
+out4:
+        misc_deregister(&tlclk_miscdev);
+out3:
+        release_region(TLCLK_BASE, 8);
+out2:
+        kfree(alarm_events);
+out1:
+        unregister_chrdev(tlclk_major, "telco_clock");
+        return ret;
+}
+
+static void __exit tlclk_cleanup(void)
+{
+        sysfs_remove_group(&tlclk_device->dev.kobj, &tlclk_attribute_group);
+        platform_device_unregister(tlclk_device);
+        misc_deregister(&tlclk_miscdev);
+        unregister_chrdev(tlclk_major, "telco_clock");
+
+        release_region(TLCLK_BASE, 8);
+        del_timer_sync(&switchover_timer);
+        kfree(alarm_events);
+
+}
+
+static void switchover_timeout(unsigned long data)
+{
+        if ((data & 1)) {
+                if ((inb(TLCLK_REG1) & 0x08) != (data & 0x08))
+                        alarm_events->switchover_primary++;
+        } else {
+                if ((inb(TLCLK_REG1) & 0x08) != (data & 0x08))
+                        alarm_events->switchover_secondary++;
+        }
+
+        /* Alarm processing is done, wake up read task */
+        del_timer(&switchover_timer);
+        got_event = 1;
+        wake_up(&wq);
+}
+
+static irqreturn_t tlclk_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&event_lock, flags);
+        /* Read and clear interrupt events */
+        int_events = inb(TLCLK_REG6);
+
+        /* Primary_Los changed from 0 to 1 ? */
+        if (int_events & PRI_LOS_01_MASK) {
+                if (inb(TLCLK_REG2) & SEC_LOST_MASK)
+                        alarm_events->lost_clocks++;
+                else
+                        alarm_events->lost_primary_clock++;
+        }
+
+        /* Primary_Los changed from 1 to 0 ? */
+        if (int_events & PRI_LOS_10_MASK) {
+                alarm_events->primary_clock_back++;
+                SET_PORT_BITS(TLCLK_REG1, 0xFE, 1);
+        }
+        /* Secondary_Los changed from 0 to 1 ? */
+        if (int_events & SEC_LOS_01_MASK) {
+                if (inb(TLCLK_REG2) & PRI_LOST_MASK)
+                        alarm_events->lost_clocks++;
+                else
+                        alarm_events->lost_secondary_clock++;
+        }
+        /* Secondary_Los changed from 1 to 0 ? */
+        if (int_events & SEC_LOS_10_MASK) {
+                alarm_events->secondary_clock_back++;
+                SET_PORT_BITS(TLCLK_REG1, 0xFE, 0);
+        }
+        if (int_events & HOLDOVER_10_MASK)
+                alarm_events->pll_end_holdover++;
+
+        if (int_events & UNLOCK_01_MASK)
+                alarm_events->pll_lost_sync++;
+
+        if (int_events & UNLOCK_10_MASK)
+                alarm_events->pll_sync++;
+
+        /* Holdover changed from 0 to 1 ? */
+        if (int_events & HOLDOVER_01_MASK) {
+                alarm_events->pll_holdover++;
+
+                /* TIMEOUT in ~10ms */
+                switchover_timer.expires = jiffies + msecs_to_jiffies(10);
+                switchover_timer.data = inb(TLCLK_REG1);
+                add_timer(&switchover_timer);
+        } else {
+                got_event = 1;
+                wake_up(&wq);
+        }
+        spin_unlock_irqrestore(&event_lock, flags);
+
+        return IRQ_HANDLED;
+}
+
+module_init(tlclk_init);
+module_exit(tlclk_cleanup);
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 049d128ae7f0..303f15880466 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -64,7 +64,7 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
         if (count == 0)
                 return -ENODATA;
         if (count > bufsiz) {
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "invalid count value %x %zx \n", count, bufsiz);
                 return -E2BIG;
         }
@@ -72,21 +72,21 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
         down(&chip->tpm_mutex);
 
         if ((rc = chip->vendor->send(chip, (u8 *) buf, count)) < 0) {
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "tpm_transmit: tpm_send: error %zd\n", rc);
                 goto out;
         }
 
         stop = jiffies + 2 * 60 * HZ;
         do {
-                u8 status = inb(chip->vendor->base + 1);
+                u8 status = chip->vendor->status(chip);
                 if ((status & chip->vendor->req_complete_mask) ==
                     chip->vendor->req_complete_val) {
                         goto out_recv;
                 }
 
                 if ((status == chip->vendor->req_canceled)) {
-                        dev_err(&chip->pci_dev->dev, "Operation Canceled\n");
+                        dev_err(chip->dev, "Operation Canceled\n");
                         rc = -ECANCELED;
                         goto out;
                 }
@@ -97,14 +97,14 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
 
 
         chip->vendor->cancel(chip);
-        dev_err(&chip->pci_dev->dev, "Operation Timed out\n");
+        dev_err(chip->dev, "Operation Timed out\n");
         rc = -ETIME;
         goto out;
 
 out_recv:
         rc = chip->vendor->recv(chip, (u8 *) buf, bufsiz);
         if (rc < 0)
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "tpm_transmit: tpm_recv: error %zd\n", rc);
 out:
         up(&chip->tpm_mutex);
@@ -139,15 +139,14 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
         __be32 index;
         char *str = buf;
 
-        struct tpm_chip *chip =
-            pci_get_drvdata(to_pci_dev(dev));
+        struct tpm_chip *chip = dev_get_drvdata(dev);
         if (chip == NULL)
                 return -ENODEV;
 
         memcpy(data, cap_pcr, sizeof(cap_pcr));
         if ((len = tpm_transmit(chip, data, sizeof(data)))
             < CAP_PCR_RESULT_SIZE) {
-                dev_dbg(&chip->pci_dev->dev, "A TPM error (%d) occurred "
+                dev_dbg(chip->dev, "A TPM error (%d) occurred "
                                 "attempting to determine the number of PCRS\n",
                         be32_to_cpu(*((__be32 *) (data + 6))));
                 return 0;
@@ -161,9 +160,10 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
                 memcpy(data + 10, &index, 4);
                 if ((len = tpm_transmit(chip, data, sizeof(data)))
                     < READ_PCR_RESULT_SIZE){
-                        dev_dbg(&chip->pci_dev->dev, "A TPM error (%d) occurred"
+                        dev_dbg(chip->dev, "A TPM error (%d) occurred"
                                 " attempting to read PCR %d of %d\n",
-                                be32_to_cpu(*((__be32 *) (data + 6))), i, num_pcrs);
+                                be32_to_cpu(*((__be32 *) (data + 6))),
+                                i, num_pcrs);
                         goto out;
                 }
                 str += sprintf(str, "PCR-%02d: ", i);
@@ -191,21 +191,19 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
         int i, rc;
         char *str = buf;
 
-        struct tpm_chip *chip =
-            pci_get_drvdata(to_pci_dev(dev));
+        struct tpm_chip *chip = dev_get_drvdata(dev);
         if (chip == NULL)
                 return -ENODEV;
 
-        data = kmalloc(READ_PUBEK_RESULT_SIZE, GFP_KERNEL);
+        data = kzalloc(READ_PUBEK_RESULT_SIZE, GFP_KERNEL);
         if (!data)
                 return -ENOMEM;
 
         memcpy(data, readpubek, sizeof(readpubek));
-        memset(data + sizeof(readpubek), 0, 20);        /* zero nonce */
 
         if ((len = tpm_transmit(chip, data, READ_PUBEK_RESULT_SIZE)) <
             READ_PUBEK_RESULT_SIZE) {
-                dev_dbg(&chip->pci_dev->dev, "A TPM error (%d) occurred "
+                dev_dbg(chip->dev, "A TPM error (%d) occurred "
                                 "attempting to read the PUBEK\n",
                             be32_to_cpu(*((__be32 *) (data + 6))));
                 rc = 0;
@@ -245,7 +243,6 @@ out:
         kfree(data);
         return rc;
 }
-
 EXPORT_SYMBOL_GPL(tpm_show_pubek);
 
 #define CAP_VER_RESULT_SIZE 18
@@ -274,8 +271,7 @@ ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
         ssize_t len;
         char *str = buf;
 
-        struct tpm_chip *chip =
-            pci_get_drvdata(to_pci_dev(dev));
+        struct tpm_chip *chip = dev_get_drvdata(dev);
         if (chip == NULL)
                 return -ENODEV;
 
@@ -315,7 +311,6 @@ ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
 }
 EXPORT_SYMBOL_GPL(tpm_store_cancel);
 
-
 /*
  * Device file system interface to the TPM
  */
@@ -339,21 +334,20 @@ int tpm_open(struct inode *inode, struct file *file)
         }
 
         if (chip->num_opens) {
-                dev_dbg(&chip->pci_dev->dev,
-                        "Another process owns this TPM\n");
+                dev_dbg(chip->dev, "Another process owns this TPM\n");
                 rc = -EBUSY;
                 goto err_out;
         }
 
         chip->num_opens++;
-        pci_dev_get(chip->pci_dev);
+        get_device(chip->dev);
 
         spin_unlock(&driver_lock);
 
         chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);
         if (chip->data_buffer == NULL) {
                 chip->num_opens--;
-                pci_dev_put(chip->pci_dev);
+                put_device(chip->dev);
                 return -ENOMEM;
         }
 
@@ -366,7 +360,6 @@ err_out:
         spin_unlock(&driver_lock);
         return rc;
 }
-
 EXPORT_SYMBOL_GPL(tpm_open);
 
 int tpm_release(struct inode *inode, struct file *file)
@@ -378,15 +371,14 @@ int tpm_release(struct inode *inode, struct file *file)
         chip->num_opens--;
         del_singleshot_timer_sync(&chip->user_read_timer);
         atomic_set(&chip->data_pending, 0);
-        pci_dev_put(chip->pci_dev);
+        put_device(chip->dev);
         kfree(chip->data_buffer);
         spin_unlock(&driver_lock);
         return 0;
 }
-
 EXPORT_SYMBOL_GPL(tpm_release);
 
-ssize_t tpm_write(struct file * file, const char __user * buf,
+ssize_t tpm_write(struct file *file, const char __user *buf,
                   size_t size, loff_t * off)
 {
         struct tpm_chip *chip = file->private_data;
@@ -422,7 +414,7 @@ ssize_t tpm_write(struct file * file, const char __user * buf,
 
 EXPORT_SYMBOL_GPL(tpm_write);
 
-ssize_t tpm_read(struct file * file, char __user * buf,
+ssize_t tpm_read(struct file * file, char __user *buf,
                  size_t size, loff_t * off)
 {
         struct tpm_chip *chip = file->private_data;
@@ -444,15 +436,14 @@ ssize_t tpm_read(struct file * file, char __user * buf,
 
         return ret_size;
 }
-
 EXPORT_SYMBOL_GPL(tpm_read);
 
-void __devexit tpm_remove(struct pci_dev *pci_dev)
+void tpm_remove_hardware(struct device *dev)
 {
-        struct tpm_chip *chip = pci_get_drvdata(pci_dev);
+        struct tpm_chip *chip = dev_get_drvdata(dev);
 
         if (chip == NULL) {
-                dev_err(&pci_dev->dev, "No device data found\n");
+                dev_err(dev, "No device data found\n");
                 return;
         }
 
@@ -462,22 +453,20 @@ void __devexit tpm_remove(struct pci_dev *pci_dev)
 
         spin_unlock(&driver_lock);
 
-        pci_set_drvdata(pci_dev, NULL);
+        dev_set_drvdata(dev, NULL);
         misc_deregister(&chip->vendor->miscdev);
         kfree(chip->vendor->miscdev.name);
 
-        sysfs_remove_group(&pci_dev->dev.kobj, chip->vendor->attr_group);
+        sysfs_remove_group(&dev->kobj, chip->vendor->attr_group);
 
-        pci_disable_device(pci_dev);
-
-        dev_mask[chip->dev_num / TPM_NUM_MASK_ENTRIES ] &= !(1 << (chip->dev_num % TPM_NUM_MASK_ENTRIES));
+        dev_mask[chip->dev_num / TPM_NUM_MASK_ENTRIES ] &=
+                !(1 << (chip->dev_num % TPM_NUM_MASK_ENTRIES));
 
         kfree(chip);
 
-        pci_dev_put(pci_dev);
+        put_device(dev);
 }
-
-EXPORT_SYMBOL_GPL(tpm_remove);
+EXPORT_SYMBOL_GPL(tpm_remove_hardware);
 
 static u8 savestate[] = {
         0, 193,                 /* TPM_TAG_RQU_COMMAND */
@@ -489,32 +478,30 @@ static u8 savestate[] = {
  * We are about to suspend. Save the TPM state
  * so that it can be restored.
  */
-int tpm_pm_suspend(struct pci_dev *pci_dev, pm_message_t pm_state)
+int tpm_pm_suspend(struct device *dev, pm_message_t pm_state)
 {
-        struct tpm_chip *chip = pci_get_drvdata(pci_dev);
+        struct tpm_chip *chip = dev_get_drvdata(dev);
         if (chip == NULL)
                 return -ENODEV;
 
         tpm_transmit(chip, savestate, sizeof(savestate));
         return 0;
 }
-
 EXPORT_SYMBOL_GPL(tpm_pm_suspend);
 
 /*
  * Resume from a power safe. The BIOS already restored
  * the TPM state.
  */
-int tpm_pm_resume(struct pci_dev *pci_dev)
+int tpm_pm_resume(struct device *dev)
 {
-        struct tpm_chip *chip = pci_get_drvdata(pci_dev);
+        struct tpm_chip *chip = dev_get_drvdata(dev);
 
         if (chip == NULL)
                 return -ENODEV;
 
         return 0;
 }
-
 EXPORT_SYMBOL_GPL(tpm_pm_resume);
 
 /*
@@ -524,8 +511,7 @@ EXPORT_SYMBOL_GPL(tpm_pm_resume);
  * upon errant exit from this function specific probe function should call
  * pci_disable_device
  */
-int tpm_register_hardware(struct pci_dev *pci_dev,
-                          struct tpm_vendor_specific *entry)
+int tpm_register_hardware(struct device *dev, struct tpm_vendor_specific *entry)
 {
 #define DEVNAME_SIZE 7
 
@@ -534,12 +520,10 @@ int tpm_register_hardware(struct pci_dev *pci_dev,
         int i, j;
 
         /* Driver specific per-device data */
-        chip = kmalloc(sizeof(*chip), GFP_KERNEL);
+        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
         if (chip == NULL)
                 return -ENOMEM;
 
-        memset(chip, 0, sizeof(struct tpm_chip));
-
         init_MUTEX(&chip->buffer_mutex);
         init_MUTEX(&chip->tpm_mutex);
         INIT_LIST_HEAD(&chip->list);
@@ -563,8 +547,7 @@ int tpm_register_hardware(struct pci_dev *pci_dev,
 
 dev_num_search_complete:
         if (chip->dev_num < 0) {
-                dev_err(&pci_dev->dev,
-                        "No available tpm device numbers\n");
+                dev_err(dev, "No available tpm device numbers\n");
                 kfree(chip);
                 return -ENODEV;
         } else if (chip->dev_num == 0)
@@ -576,15 +559,15 @@ dev_num_search_complete:
         scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num);
         chip->vendor->miscdev.name = devname;
 
-        chip->vendor->miscdev.dev = &(pci_dev->dev);
-        chip->pci_dev = pci_dev_get(pci_dev);
+        chip->vendor->miscdev.dev = dev;
+        chip->dev = get_device(dev);
 
         if (misc_register(&chip->vendor->miscdev)) {
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "unable to misc_register %s, minor %d\n",
                         chip->vendor->miscdev.name,
                         chip->vendor->miscdev.minor);
-                pci_dev_put(pci_dev);
+                put_device(dev);
                 kfree(chip);
                 dev_mask[i] &= !(1 << j);
                 return -ENODEV;
@@ -592,17 +575,16 @@ dev_num_search_complete:
 
         spin_lock(&driver_lock);
 
-        pci_set_drvdata(pci_dev, chip);
+        dev_set_drvdata(dev, chip);
 
         list_add(&chip->list, &tpm_chip_list);
 
         spin_unlock(&driver_lock);
 
-        sysfs_create_group(&pci_dev->dev.kobj, chip->vendor->attr_group);
+        sysfs_create_group(&dev->kobj, chip->vendor->attr_group);
 
         return 0;
 }
-
 EXPORT_SYMBOL_GPL(tpm_register_hardware);
 
 MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 373b41f6b460..024814b50c3c 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -55,12 +55,13 @@ struct tpm_vendor_specific {
         int (*recv) (struct tpm_chip *, u8 *, size_t);
         int (*send) (struct tpm_chip *, u8 *, size_t);
         void (*cancel) (struct tpm_chip *);
+        u8 (*status) (struct tpm_chip *);
         struct miscdevice miscdev;
         struct attribute_group *attr_group;
 };
 
 struct tpm_chip {
-        struct pci_dev *pci_dev;        /* PCI device stuff */
+        struct device *dev;     /* Device stuff */
 
         int dev_num;            /* /dev/tpm# */
         int num_opens;          /* only one allowed */
@@ -91,13 +92,13 @@ static inline void tpm_write_index(int base, int index, int value)
         outb(value & 0xFF, base+1);
 }
 
-extern int tpm_register_hardware(struct pci_dev *,
+extern int tpm_register_hardware(struct device *,
                                  struct tpm_vendor_specific *);
 extern int tpm_open(struct inode *, struct file *);
 extern int tpm_release(struct inode *, struct file *);
 extern ssize_t tpm_write(struct file *, const char __user *, size_t,
                          loff_t *);
 extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *);
-extern void __devexit tpm_remove(struct pci_dev *);
-extern int tpm_pm_suspend(struct pci_dev *, pm_message_t);
-extern int tpm_pm_resume(struct pci_dev *);
+extern void tpm_remove_hardware(struct device *);
+extern int tpm_pm_suspend(struct device *, pm_message_t);
+extern int tpm_pm_resume(struct device *);
diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index c0d64914595f..8cb42e84723c 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -40,7 +40,7 @@ enum tpm_atmel_read_status {
         ATML_STATUS_READY = 0x08
 };
 
-static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
+static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 {
         u8 status, *hdr = buf;
         u32 size;
@@ -54,7 +54,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
         for (i = 0; i < 6; i++) {
                 status = inb(chip->vendor->base + 1);
                 if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-                        dev_err(&chip->pci_dev->dev,
+                        dev_err(chip->dev,
                                 "error reading header\n");
                         return -EIO;
                 }
@@ -66,12 +66,12 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
         size = be32_to_cpu(*native_size);
 
         if (count < size) {
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "Recv size(%d) less than available space\n", size);
                 for (; i < size; i++) { /* clear the waiting data anyway */
                         status = inb(chip->vendor->base + 1);
                         if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-                                dev_err(&chip->pci_dev->dev,
+                                dev_err(chip->dev,
                                         "error reading data\n");
                                 return -EIO;
                         }
@@ -83,7 +83,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
         for (; i < size; i++) {
                 status = inb(chip->vendor->base + 1);
                 if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-                        dev_err(&chip->pci_dev->dev,
+                        dev_err(chip->dev,
                                 "error reading data\n");
                         return -EIO;
                 }
@@ -93,20 +93,20 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
         /* make sure data available is gone */
         status = inb(chip->vendor->base + 1);
         if (status & ATML_STATUS_DATA_AVAIL) {
-                dev_err(&chip->pci_dev->dev, "data available is stuck\n");
+                dev_err(chip->dev, "data available is stuck\n");
                 return -EIO;
         }
 
         return size;
 }
 
-static int tpm_atml_send(struct tpm_chip *chip, u8 * buf, size_t count)
+static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
 {
         int i;
 
-        dev_dbg(&chip->pci_dev->dev, "tpm_atml_send: ");
+        dev_dbg(chip->dev, "tpm_atml_send:\n");
         for (i = 0; i < count; i++) {
-                dev_dbg(&chip->pci_dev->dev, "0x%x(%d) ", buf[i], buf[i]);
+                dev_dbg(chip->dev, "%d 0x%x(%d)\n",  i, buf[i], buf[i]);
                 outb(buf[i], chip->vendor->base);
         }
 
@@ -118,6 +118,11 @@ static void tpm_atml_cancel(struct tpm_chip *chip)
         outb(ATML_STATUS_ABORT, chip->vendor->base + 1);
 }
 
+static u8 tpm_atml_status(struct tpm_chip *chip)
+{
+        return inb(chip->vendor->base + 1);
+}
+
 static struct file_operations atmel_ops = {
         .owner = THIS_MODULE,
         .llseek = no_llseek,
@@ -137,7 +142,7 @@ static struct attribute* atmel_attrs[] = {
         &dev_attr_pcrs.attr,
         &dev_attr_caps.attr,
         &dev_attr_cancel.attr,
-        0,
+        NULL,
 };
 
 static struct attribute_group atmel_attr_grp = { .attrs = atmel_attrs };
@@ -146,6 +151,7 @@ static struct tpm_vendor_specific tpm_atmel = {
         .recv = tpm_atml_recv,
         .send = tpm_atml_send,
         .cancel = tpm_atml_cancel,
+        .status = tpm_atml_status,
         .req_complete_mask = ATML_STATUS_BUSY | ATML_STATUS_DATA_AVAIL,
         .req_complete_val = ATML_STATUS_DATA_AVAIL,
         .req_canceled = ATML_STATUS_READY,
@@ -153,86 +159,94 @@ static struct tpm_vendor_specific tpm_atmel = {
         .miscdev = { .fops = &atmel_ops, },
 };
 
-static int __devinit tpm_atml_init(struct pci_dev *pci_dev,
-                                   const struct pci_device_id *pci_id)
+static struct platform_device *pdev;
+
+static void __devexit tpm_atml_remove(struct device *dev)
+{
+        struct tpm_chip *chip = dev_get_drvdata(dev);
+        if (chip) {
+                release_region(chip->vendor->base, 2);
+                tpm_remove_hardware(chip->dev);
+        }
+}
+
+static struct device_driver atml_drv = {
+        .name = "tpm_atmel",
+        .bus = &platform_bus_type,
+        .owner = THIS_MODULE,
+        .suspend = tpm_pm_suspend,
+        .resume = tpm_pm_resume,
+};
+
+static int __init init_atmel(void)
 {
-        u8 version[4];
         int rc = 0;
         int lo, hi;
 
-        if (pci_enable_device(pci_dev))
-                return -EIO;
+        driver_register(&atml_drv);
 
         lo = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_LO);
         hi = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_HI);
 
         tpm_atmel.base = (hi<<8)|lo;
-        dev_dbg( &pci_dev->dev, "Operating with base: 0x%x\n", tpm_atmel.base);
 
         /* verify that it is an Atmel part */
         if (tpm_read_index(TPM_ADDR, 4) != 'A' || tpm_read_index(TPM_ADDR, 5) != 'T'
             || tpm_read_index(TPM_ADDR, 6) != 'M' || tpm_read_index(TPM_ADDR, 7) != 'L') {
-                rc = -ENODEV;
-                goto out_err;
+                return -ENODEV;
         }
 
-        /* query chip for its version number */
-        if ((version[0] = tpm_read_index(TPM_ADDR, 0x00)) != 0xFF) {
-                version[1] = tpm_read_index(TPM_ADDR, 0x01);
-                version[2] = tpm_read_index(TPM_ADDR, 0x02);
-                version[3] = tpm_read_index(TPM_ADDR, 0x03);
-        } else {
-                dev_info(&pci_dev->dev, "version query failed\n");
-                rc = -ENODEV;
-                goto out_err;
+        /* verify chip version number is 1.1 */
+        if (    (tpm_read_index(TPM_ADDR, 0x00) != 0x01) ||
+                (tpm_read_index(TPM_ADDR, 0x01) != 0x01 ))
+                return -ENODEV;
+
+        pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
+        if ( !pdev )
+                return -ENOMEM;
+
+        pdev->name = "tpm_atmel0";
+        pdev->id = -1;
+        pdev->num_resources = 0;
+        pdev->dev.release = tpm_atml_remove;
+        pdev->dev.driver = &atml_drv;
+
+        if ((rc = platform_device_register(pdev)) < 0) {
+                kfree(pdev);
+                pdev = NULL;
+                return rc;
         }
 
-        if ((rc = tpm_register_hardware(pci_dev, &tpm_atmel)) < 0)
-                goto out_err;
+        if (request_region(tpm_atmel.base, 2, "tpm_atmel0") == NULL ) {
+                platform_device_unregister(pdev);
+                kfree(pdev);
+                pdev = NULL;
+                return -EBUSY;
+        }
 
-        dev_info(&pci_dev->dev,
-                 "Atmel TPM version %d.%d.%d.%d\n", version[0], version[1],
-                 version[2], version[3]);
+        if ((rc = tpm_register_hardware(&pdev->dev, &tpm_atmel)) < 0) {
+                release_region(tpm_atmel.base, 2);
+                platform_device_unregister(pdev);
+                kfree(pdev);
+                pdev = NULL;
+                return rc;
+        }
 
+        dev_info(&pdev->dev, "Atmel TPM 1.1, Base Address: 0x%x\n",
+                        tpm_atmel.base);
         return 0;
-out_err:
-        pci_disable_device(pci_dev);
-        return rc;
-}
-
-static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_LPC)},
-        {PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6LPC)},
-        {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, tpm_pci_tbl);
-
-static struct pci_driver atmel_pci_driver = {
-        .name = "tpm_atmel",
-        .id_table = tpm_pci_tbl,
-        .probe = tpm_atml_init,
-        .remove = __devexit_p(tpm_remove),
-        .suspend = tpm_pm_suspend,
-        .resume = tpm_pm_resume,
-};
-
-static int __init init_atmel(void)
-{
-        return pci_register_driver(&atmel_pci_driver);
 }
 
 static void __exit cleanup_atmel(void)
 {
-        pci_unregister_driver(&atmel_pci_driver);
+        if (pdev) {
+                tpm_atml_remove(&pdev->dev);
+                platform_device_unregister(pdev);
+                kfree(pdev);
+                pdev = NULL;
+        }
+
+        driver_unregister(&atml_drv);
 }
 
 module_init(init_atmel);
diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
index 939e51e119e6..8198dbb7370f 100644
--- a/drivers/char/tpm/tpm_infineon.c
+++ b/drivers/char/tpm/tpm_infineon.c
@@ -5,6 +5,7 @@
  * Specifications at www.trustedcomputinggroup.org
  *
  * Copyright (C) 2005, Marcel Selhorst <selhorst@crypto.rub.de>
+ * Sirrix AG - security technologies, http://www.sirrix.com and
  * Applied Data Security Group, Ruhr-University Bochum, Germany
  * Project-Homepage: http://www.prosec.rub.de/tpm
  *
@@ -29,9 +30,10 @@
 #define TPM_INFINEON_DEV_VEN_VALUE      0x15D1
 
 /* These values will be filled after PnP-call */
-static int TPM_INF_DATA = 0;
-static int TPM_INF_ADDR = 0;
-static int pnp_registered = 0;
+static int TPM_INF_DATA;
+static int TPM_INF_ADDR;
+static int TPM_INF_BASE;
+static int TPM_INF_PORT_LEN;
 
 /* TPM header definitions */
 enum infineon_tpm_header {
@@ -143,11 +145,9 @@ static int wait(struct tpm_chip *chip, int wait_for_bit)
         }
         if (i == TPM_MAX_TRIES) {       /* timeout occurs */
                 if (wait_for_bit == STAT_XFE)
-                        dev_err(&chip->pci_dev->dev,
-                                "Timeout in wait(STAT_XFE)\n");
+                        dev_err(chip->dev, "Timeout in wait(STAT_XFE)\n");
                 if (wait_for_bit == STAT_RDA)
-                        dev_err(&chip->pci_dev->dev,
-                                "Timeout in wait(STAT_RDA)\n");
+                        dev_err(chip->dev, "Timeout in wait(STAT_RDA)\n");
                 return -EIO;
         }
         return 0;
@@ -170,7 +170,7 @@ static void wait_and_send(struct tpm_chip *chip, u8 sendbyte)
 static void tpm_wtx(struct tpm_chip *chip)
 {
         number_of_wtx++;
-        dev_info(&chip->pci_dev->dev, "Granting WTX (%02d / %02d)\n",
+        dev_info(chip->dev, "Granting WTX (%02d / %02d)\n",
                  number_of_wtx, TPM_MAX_WTX_PACKAGES);
         wait_and_send(chip, TPM_VL_VER);
         wait_and_send(chip, TPM_CTRL_WTX);
@@ -181,7 +181,7 @@ static void tpm_wtx(struct tpm_chip *chip)
 
 static void tpm_wtx_abort(struct tpm_chip *chip)
 {
-        dev_info(&chip->pci_dev->dev, "Aborting WTX\n");
+        dev_info(chip->dev, "Aborting WTX\n");
         wait_and_send(chip, TPM_VL_VER);
         wait_and_send(chip, TPM_CTRL_WTX_ABORT);
         wait_and_send(chip, 0x00);
@@ -206,7 +206,7 @@ recv_begin:
         }
 
         if (buf[0] != TPM_VL_VER) {
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "Wrong transport protocol implementation!\n");
                 return -EIO;
         }
@@ -221,8 +221,7 @@ recv_begin:
                 }
 
                 if ((size == 0x6D00) && (buf[1] == 0x80)) {
-                        dev_err(&chip->pci_dev->dev,
-                                "Error handling on vendor layer!\n");
+                        dev_err(chip->dev, "Error handling on vendor layer!\n");
                         return -EIO;
                 }
 
@@ -234,7 +233,7 @@ recv_begin:
         }
 
         if (buf[1] == TPM_CTRL_WTX) {
-                dev_info(&chip->pci_dev->dev, "WTX-package received\n");
+                dev_info(chip->dev, "WTX-package received\n");
                 if (number_of_wtx < TPM_MAX_WTX_PACKAGES) {
                         tpm_wtx(chip);
                         goto recv_begin;
@@ -245,14 +244,14 @@ recv_begin:
         }
 
         if (buf[1] == TPM_CTRL_WTX_ABORT_ACK) {
-                dev_info(&chip->pci_dev->dev, "WTX-abort acknowledged\n");
+                dev_info(chip->dev, "WTX-abort acknowledged\n");
                 return size;
         }
 
         if (buf[1] == TPM_CTRL_ERROR) {
-                dev_err(&chip->pci_dev->dev, "ERROR-package received:\n");
+                dev_err(chip->dev, "ERROR-package received:\n");
                 if (buf[4] == TPM_INF_NAK)
-                        dev_err(&chip->pci_dev->dev,
+                        dev_err(chip->dev,
                                 "-> Negative acknowledgement"
                                 " - retransmit command!\n");
                 return -EIO;
@@ -271,7 +270,7 @@ static int tpm_inf_send(struct tpm_chip *chip, u8 * buf, size_t count)
 
         ret = empty_fifo(chip, 1);
         if (ret) {
-                dev_err(&chip->pci_dev->dev, "Timeout while clearing FIFO\n");
+                dev_err(chip->dev, "Timeout while clearing FIFO\n");
                 return -EIO;
         }
 
@@ -316,6 +315,11 @@ static void tpm_inf_cancel(struct tpm_chip *chip)
          */
 }
 
+static u8 tpm_inf_status(struct tpm_chip *chip)
+{
+        return inb(chip->vendor->base + STAT);
+}
+
 static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
 static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
 static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
@@ -344,6 +348,7 @@ static struct tpm_vendor_specific tpm_inf = {
         .recv = tpm_inf_recv,
         .send = tpm_inf_send,
         .cancel = tpm_inf_cancel,
+        .status = tpm_inf_status,
         .req_complete_mask = 0,
         .req_complete_val = 0,
         .attr_group = &inf_attr_grp,
@@ -356,30 +361,11 @@ static const struct pnp_device_id tpm_pnp_tbl[] = {
         {"IFX0102", 0},
         {"", 0}
 };
+
 MODULE_DEVICE_TABLE(pnp, tpm_pnp_tbl);
 
 static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev,
-                                        const struct pnp_device_id *dev_id)
-{
-        if (pnp_port_valid(dev, 0)) {
-                TPM_INF_ADDR = (pnp_port_start(dev, 0) & 0xff);
-                TPM_INF_DATA = ((TPM_INF_ADDR + 1) & 0xff);
-                tpm_inf.base = pnp_port_start(dev, 1);
-                dev_info(&dev->dev, "Found %s with ID %s\n",
-                dev->name, dev_id->id);
-                return 0;
-        }
-        return -ENODEV;
-}
-
-static struct pnp_driver tpm_inf_pnp = {
-        .name = "tpm_inf_pnp",
-        .id_table = tpm_pnp_tbl,
-        .probe = tpm_inf_pnp_probe,
-};
-
-static int __devinit tpm_inf_probe(struct pci_dev *pci_dev,
-                                   const struct pci_device_id *pci_id)
+                                       const struct pnp_device_id *dev_id)
 {
         int rc = 0;
         u8 iol, ioh;
@@ -388,30 +374,28 @@ static int __devinit tpm_inf_probe(struct pci_dev *pci_dev,
         int productid[2];
         char chipname[20];
 
-        rc = pci_enable_device(pci_dev);
-        if (rc)
-                return rc;
-
-        dev_info(&pci_dev->dev, "LPC-bus found at 0x%x\n", pci_id->device);
-
-        /* read IO-ports from PnP */
-        rc = pnp_register_driver(&tpm_inf_pnp);
-        if (rc < 0) {
-                dev_err(&pci_dev->dev,
-                        "Error %x from pnp_register_driver!\n",rc);
-                goto error2;
-        }
-        if (!rc) {
-                dev_info(&pci_dev->dev, "No Infineon TPM found!\n");
-                goto error;
+        /* read IO-ports through PnP */
+        if (pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) &&
+            !(pnp_port_flags(dev, 0) & IORESOURCE_DISABLED)) {
+                TPM_INF_ADDR = pnp_port_start(dev, 0);
+                TPM_INF_DATA = (TPM_INF_ADDR + 1);
+                TPM_INF_BASE = pnp_port_start(dev, 1);
+                TPM_INF_PORT_LEN = pnp_port_len(dev, 1);
+                if (!TPM_INF_PORT_LEN)
+                        return -EINVAL;
+                dev_info(&dev->dev, "Found %s with ID %s\n",
+                         dev->name, dev_id->id);
+                if (!((TPM_INF_BASE >> 8) & 0xff))
+                        return -EINVAL;
+                /* publish my base address and request region */
+                tpm_inf.base = TPM_INF_BASE;
+                if (request_region
+                    (tpm_inf.base, TPM_INF_PORT_LEN, "tpm_infineon0") == NULL) {
+                        release_region(tpm_inf.base, TPM_INF_PORT_LEN);
+                        return -EINVAL;
+                }
         } else {
-                pnp_registered = 1;
-        }
-
-        /* Make sure, we have received valid config ports */
-        if (!TPM_INF_ADDR) {
-                dev_err(&pci_dev->dev, "No valid IO-ports received!\n");
-                goto error;
+                return -EINVAL;
         }
 
         /* query chip for its vendor, its version number a.s.o. */
@@ -443,10 +427,6 @@ static int __devinit tpm_inf_probe(struct pci_dev *pci_dev,
 
         if ((vendorid[0] << 8 | vendorid[1]) == (TPM_INFINEON_DEV_VEN_VALUE)) {
 
-                if (tpm_inf.base == 0) {
-                        dev_err(&pci_dev->dev, "No IO-ports found!\n");
-                        goto error;
-                }
                 /* configure TPM with IO-ports */
                 outb(IOLIMH, TPM_INF_ADDR);
                 outb(((tpm_inf.base >> 8) & 0xff), TPM_INF_DATA);
@@ -460,10 +440,11 @@ static int __devinit tpm_inf_probe(struct pci_dev *pci_dev,
                 iol = inb(TPM_INF_DATA);
 
                 if ((ioh << 8 | iol) != tpm_inf.base) {
-                        dev_err(&pci_dev->dev,
+                        dev_err(&dev->dev,
                                 "Could not set IO-ports to %04x\n",
                                 tpm_inf.base);
-                        goto error;
+                        release_region(tpm_inf.base, TPM_INF_PORT_LEN);
+                        return -EIO;
                 }
 
                 /* activate register */
@@ -475,7 +456,7 @@ static int __devinit tpm_inf_probe(struct pci_dev *pci_dev,
                 outb(RESET_LP_IRQC_DISABLE, tpm_inf.base + CMD);
 
                 /* Finally, we're done, print some infos */
-                dev_info(&pci_dev->dev, "TPM found: "
+                dev_info(&dev->dev, "TPM found: "
                          "config base 0x%x, "
                          "io base 0x%x, "
                          "chip version %02x%02x, "
@@ -483,59 +464,53 @@ static int __devinit tpm_inf_probe(struct pci_dev *pci_dev,
                          "product id %02x%02x"
                          "%s\n",
                          TPM_INF_ADDR,
-                         tpm_inf.base,
+                         TPM_INF_BASE,
                          version[0], version[1],
                          vendorid[0], vendorid[1],
                          productid[0], productid[1], chipname);
 
-                rc = tpm_register_hardware(pci_dev, &tpm_inf);
-                if (rc < 0)
-                        goto error;
+                rc = tpm_register_hardware(&dev->dev, &tpm_inf);
+                if (rc < 0) {
+                        release_region(tpm_inf.base, TPM_INF_PORT_LEN);
+                        return -ENODEV;
+                }
                 return 0;
         } else {
-                dev_info(&pci_dev->dev, "No Infineon TPM found!\n");
-error:
-                pnp_unregister_driver(&tpm_inf_pnp);
-error2:
-                pci_disable_device(pci_dev);
-                pnp_registered = 0;
+                dev_info(&dev->dev, "No Infineon TPM found!\n");
                 return -ENODEV;
         }
 }
 
-static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_2)},
-        {0,}
-};
+static __devexit void tpm_inf_pnp_remove(struct pnp_dev *dev)
+{
+        struct tpm_chip *chip = pnp_get_drvdata(dev);
 
-MODULE_DEVICE_TABLE(pci, tpm_pci_tbl);
+        if (chip) {
+                release_region(chip->vendor->base, TPM_INF_PORT_LEN);
+                tpm_remove_hardware(chip->dev);
+        }
+}
 
-static struct pci_driver inf_pci_driver = {
-        .name = "tpm_inf",
-        .id_table = tpm_pci_tbl,
-        .probe = tpm_inf_probe,
-        .remove = __devexit_p(tpm_remove),
-        .suspend = tpm_pm_suspend,
-        .resume = tpm_pm_resume,
+static struct pnp_driver tpm_inf_pnp = {
+        .name = "tpm_inf_pnp",
+        .driver = {
+                .owner = THIS_MODULE,
+                .suspend = tpm_pm_suspend,
+                .resume = tpm_pm_resume,
+        },
+        .id_table = tpm_pnp_tbl,
+        .probe = tpm_inf_pnp_probe,
+        .remove = tpm_inf_pnp_remove,
 };
 
 static int __init init_inf(void)
 {
-        return pci_register_driver(&inf_pci_driver);
+        return pnp_register_driver(&tpm_inf_pnp);
 }
 
 static void __exit cleanup_inf(void)
 {
-        if (pnp_registered)
-                pnp_unregister_driver(&tpm_inf_pnp);
-        pci_unregister_driver(&inf_pci_driver);
+        pnp_unregister_driver(&tpm_inf_pnp);
 }
 
 module_init(init_inf);
@@ -543,5 +518,5 @@ module_exit(cleanup_inf);
 
 MODULE_AUTHOR("Marcel Selhorst <selhorst@crypto.rub.de>");
 MODULE_DESCRIPTION("Driver for Infineon TPM SLD 9630 TT 1.1 / SLB 9635 TT 1.2");
-MODULE_VERSION("1.5");
+MODULE_VERSION("1.6");
 MODULE_LICENSE("GPL");
diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index b4127348c063..253871b5b1e2 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -111,7 +111,7 @@ static int nsc_wait_for_ready(struct tpm_chip *chip)
         }
         while (time_before(jiffies, stop));
 
-        dev_info(&chip->pci_dev->dev, "wait for ready failed\n");
+        dev_info(chip->dev, "wait for ready failed\n");
         return -EBUSY;
 }
 
@@ -127,12 +127,12 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
                 return -EIO;
 
         if (wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0) {
-                dev_err(&chip->pci_dev->dev, "F0 timeout\n");
+                dev_err(chip->dev, "F0 timeout\n");
                 return -EIO;
         }
         if ((data =
              inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_NORMAL) {
-                dev_err(&chip->pci_dev->dev, "not in normal mode (0x%x)\n",
+                dev_err(chip->dev, "not in normal mode (0x%x)\n",
                         data);
                 return -EIO;
         }
@@ -141,7 +141,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
         for (p = buffer; p < &buffer[count]; p++) {
                 if (wait_for_stat
                     (chip, NSC_STATUS_OBF, NSC_STATUS_OBF, &data) < 0) {
-                        dev_err(&chip->pci_dev->dev,
+                        dev_err(chip->dev,
                                 "OBF timeout (while reading data)\n");
                         return -EIO;
                 }
@@ -152,11 +152,11 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 
         if ((data & NSC_STATUS_F0) == 0 &&
         (wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0)) {
-                dev_err(&chip->pci_dev->dev, "F0 not set\n");
+                dev_err(chip->dev, "F0 not set\n");
                 return -EIO;
         }
         if ((data = inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_EOC) {
-                dev_err(&chip->pci_dev->dev,
+                dev_err(chip->dev,
                         "expected end of command(0x%x)\n", data);
                 return -EIO;
         }
@@ -187,19 +187,19 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
                 return -EIO;
 
         if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-                dev_err(&chip->pci_dev->dev, "IBF timeout\n");
+                dev_err(chip->dev, "IBF timeout\n");
                 return -EIO;
         }
 
         outb(NSC_COMMAND_NORMAL, chip->vendor->base + NSC_COMMAND);
         if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) {
-                dev_err(&chip->pci_dev->dev, "IBR timeout\n");
+                dev_err(chip->dev, "IBR timeout\n");
                 return -EIO;
         }
 
         for (i = 0; i < count; i++) {
                 if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-                        dev_err(&chip->pci_dev->dev,
+                        dev_err(chip->dev,
                                 "IBF timeout (while writing data)\n");
                         return -EIO;
                 }
@@ -207,7 +207,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
         }
 
         if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-                dev_err(&chip->pci_dev->dev, "IBF timeout\n");
+                dev_err(chip->dev, "IBF timeout\n");
                 return -EIO;
         }
         outb(NSC_COMMAND_EOC, chip->vendor->base + NSC_COMMAND);
@@ -220,6 +220,11 @@ static void tpm_nsc_cancel(struct tpm_chip *chip)
         outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND);
 }
 
+static u8 tpm_nsc_status(struct tpm_chip *chip)
+{
+        return inb(chip->vendor->base + NSC_STATUS);
+}
+
 static struct file_operations nsc_ops = {
         .owner = THIS_MODULE,
         .llseek = no_llseek,
@@ -239,7 +244,7 @@ static struct attribute * nsc_attrs[] = {
         &dev_attr_pcrs.attr,
         &dev_attr_caps.attr,
         &dev_attr_cancel.attr,
-        0,
+        NULL,
 };
 
 static struct attribute_group nsc_attr_grp = { .attrs = nsc_attrs };
@@ -248,6 +253,7 @@ static struct tpm_vendor_specific tpm_nsc = {
         .recv = tpm_nsc_recv,
         .send = tpm_nsc_send,
         .cancel = tpm_nsc_cancel,
+        .status = tpm_nsc_status,
         .req_complete_mask = NSC_STATUS_OBF,
         .req_complete_val = NSC_STATUS_OBF,
         .req_canceled = NSC_STATUS_RDY,
@@ -255,16 +261,32 @@ static struct tpm_vendor_specific tpm_nsc = {
         .miscdev = { .fops = &nsc_ops, },
 };
 
-static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
-                                  const struct pci_device_id *pci_id)
+static struct platform_device *pdev = NULL;
+
+static void __devexit tpm_nsc_remove(struct device *dev)
+{
+        struct tpm_chip *chip = dev_get_drvdata(dev);
+        if ( chip ) {
+                release_region(chip->vendor->base, 2);
+                tpm_remove_hardware(chip->dev);
+        }
+}
+
+static struct device_driver nsc_drv = {
+        .name = "tpm_nsc",
+        .bus = &platform_bus_type,
+        .owner = THIS_MODULE,
+        .suspend = tpm_pm_suspend,
+        .resume = tpm_pm_resume,
+};
+
+static int __init init_nsc(void)
 {
         int rc = 0;
         int lo, hi;
         int nscAddrBase = TPM_ADDR;
 
-
-        if (pci_enable_device(pci_dev))
-                return -EIO;
+        driver_register(&nsc_drv);
 
         /* select PM channel 1 */
         tpm_write_index(nscAddrBase,NSC_LDN_INDEX, 0x12);
@@ -273,37 +295,71 @@ static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
         if (tpm_read_index(TPM_ADDR, NSC_SID_INDEX) != 0xEF) {
                 nscAddrBase = (tpm_read_index(TPM_SUPERIO_ADDR, 0x2C)<<8)|
                         (tpm_read_index(TPM_SUPERIO_ADDR, 0x2B)&0xFE);
-                if (tpm_read_index(nscAddrBase, NSC_SID_INDEX) != 0xF6) {
-                        rc = -ENODEV;
-                        goto out_err;
-                }
+                if (tpm_read_index(nscAddrBase, NSC_SID_INDEX) != 0xF6)
+                        return -ENODEV;
         }
 
         hi = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_HI);
         lo = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_LO);
         tpm_nsc.base = (hi<<8) | lo;
 
-        dev_dbg(&pci_dev->dev, "NSC TPM detected\n");
-        dev_dbg(&pci_dev->dev,
+        /* enable the DPM module */
+        tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01);
+
+        pdev = kmalloc(sizeof(struct platform_device), GFP_KERNEL);
+        if ( !pdev )
+                return -ENOMEM;
+
+        memset(pdev, 0, sizeof(struct platform_device));
+
+        pdev->name = "tpm_nscl0";
+        pdev->id = -1;
+        pdev->num_resources = 0;
+        pdev->dev.release = tpm_nsc_remove;
+        pdev->dev.driver = &nsc_drv;
+
+        if ((rc=platform_device_register(pdev)) < 0) {
+                kfree(pdev);
+                pdev = NULL;
+                return rc;
+        }
+
+        if (request_region(tpm_nsc.base, 2, "tpm_nsc0") == NULL ) {
+                platform_device_unregister(pdev);
+                kfree(pdev);
+                pdev = NULL;
+                return -EBUSY;
+        }
+
+        if ((rc = tpm_register_hardware(&pdev->dev, &tpm_nsc)) < 0) {
+                release_region(tpm_nsc.base, 2);
+                platform_device_unregister(pdev);
+                kfree(pdev);
+                pdev = NULL;
+                return rc;
+        }
+
+        dev_dbg(&pdev->dev, "NSC TPM detected\n");
+        dev_dbg(&pdev->dev,
                 "NSC LDN 0x%x, SID 0x%x, SRID 0x%x\n",
                 tpm_read_index(nscAddrBase,0x07), tpm_read_index(nscAddrBase,0x20),
                 tpm_read_index(nscAddrBase,0x27));
-        dev_dbg(&pci_dev->dev,
+        dev_dbg(&pdev->dev,
                 "NSC SIOCF1 0x%x SIOCF5 0x%x SIOCF6 0x%x SIOCF8 0x%x\n",
                 tpm_read_index(nscAddrBase,0x21), tpm_read_index(nscAddrBase,0x25),
                 tpm_read_index(nscAddrBase,0x26), tpm_read_index(nscAddrBase,0x28));
-        dev_dbg(&pci_dev->dev, "NSC IO Base0 0x%x\n",
+        dev_dbg(&pdev->dev, "NSC IO Base0 0x%x\n",
                 (tpm_read_index(nscAddrBase,0x60) << 8) | tpm_read_index(nscAddrBase,0x61));
-        dev_dbg(&pci_dev->dev, "NSC IO Base1 0x%x\n",
+        dev_dbg(&pdev->dev, "NSC IO Base1 0x%x\n",
                 (tpm_read_index(nscAddrBase,0x62) << 8) | tpm_read_index(nscAddrBase,0x63));
-        dev_dbg(&pci_dev->dev, "NSC Interrupt number and wakeup 0x%x\n",
+        dev_dbg(&pdev->dev, "NSC Interrupt number and wakeup 0x%x\n",
                 tpm_read_index(nscAddrBase,0x70));
-        dev_dbg(&pci_dev->dev, "NSC IRQ type select 0x%x\n",
+        dev_dbg(&pdev->dev, "NSC IRQ type select 0x%x\n",
                 tpm_read_index(nscAddrBase,0x71));
-        dev_dbg(&pci_dev->dev,
+        dev_dbg(&pdev->dev,
                 "NSC DMA channel select0 0x%x, select1 0x%x\n",
                 tpm_read_index(nscAddrBase,0x74), tpm_read_index(nscAddrBase,0x75));
-        dev_dbg(&pci_dev->dev,
+        dev_dbg(&pdev->dev,
                 "NSC Config "
                 "0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
                 tpm_read_index(nscAddrBase,0xF0), tpm_read_index(nscAddrBase,0xF1),
@@ -312,55 +368,23 @@ static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
                 tpm_read_index(nscAddrBase,0xF6), tpm_read_index(nscAddrBase,0xF7),
                 tpm_read_index(nscAddrBase,0xF8), tpm_read_index(nscAddrBase,0xF9));
 
-        dev_info(&pci_dev->dev,
+        dev_info(&pdev->dev,
                  "NSC TPM revision %d\n",
                  tpm_read_index(nscAddrBase, 0x27) & 0x1F);
 
-        /* enable the DPM module */
-        tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01);
-
-        if ((rc = tpm_register_hardware(pci_dev, &tpm_nsc)) < 0)
-                goto out_err;
-
         return 0;
-
-out_err:
-        pci_disable_device(pci_dev);
-        return rc;
-}
-
-static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1)},
-        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0)},
-        {PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_LPC)},
-        {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, tpm_pci_tbl);
-
-static struct pci_driver nsc_pci_driver = {
-        .name = "tpm_nsc",
-        .id_table = tpm_pci_tbl,
-        .probe = tpm_nsc_init,
-        .remove = __devexit_p(tpm_remove),
-        .suspend = tpm_pm_suspend,
-        .resume = tpm_pm_resume,
-};
-
-static int __init init_nsc(void)
-{
-        return pci_register_driver(&nsc_pci_driver);
 }
 
 static void __exit cleanup_nsc(void)
 {
-        pci_unregister_driver(&nsc_pci_driver);
+        if (pdev) {
+                tpm_nsc_remove(&pdev->dev);
+                platform_device_unregister(pdev);
+                kfree(pdev);
+                pdev = NULL;
+        }
+
+        driver_unregister(&nsc_drv);
 }
 
 module_init(init_nsc);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index f5649a337743..c586bfa852ee 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -809,7 +809,7 @@ static void do_tty_hangup(void *data)
         check_tty_count(tty, "do_tty_hangup");
         file_list_lock();
         /* This breaks for file handles being sent over AF_UNIX sockets ? */
-        list_for_each_entry(filp, &tty->tty_files, f_list) {
+        list_for_each_entry(filp, &tty->tty_files, f_u.fu_list) {
                 if (filp->f_op->write == redirected_tty_write)
                         cons_filp = filp;
                 if (filp->f_op->write != tty_write)
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index a5e104f428f8..51abd3defc1c 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -993,13 +993,16 @@ static struct vio_device_id viotape_device_table[] __devinitdata = {
         { "viotape", "" },
         { "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, viotape_device_table);
+
 static struct vio_driver viotape_driver = {
-        .name = "viotape",
         .id_table = viotape_device_table,
         .probe = viotape_probe,
-        .remove = viotape_remove
+        .remove = viotape_remove,
+        .driver = {
+                .name = "viotape",
+                .owner = THIS_MODULE,
+        }
 };
 
 
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 1d44f69e1fda..003dda147cd0 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -192,6 +192,9 @@ do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
         int i, j, k;
         int ret;
 
+        if (!capable(CAP_SYS_TTY_CONFIG))
+                return -EPERM;
+
         kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
         if (!kbs) {
                 ret = -ENOMEM;
diff --git a/drivers/char/watchdog/cpu5wdt.c b/drivers/char/watchdog/cpu5wdt.c
index 2865dac0a813..e75045fe2641 100644
--- a/drivers/char/watchdog/cpu5wdt.c
+++ b/drivers/char/watchdog/cpu5wdt.c
@@ -28,6 +28,7 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/timer.h>
+#include <linux/jiffies.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 
diff --git a/drivers/char/watchdog/mixcomwd.c b/drivers/char/watchdog/mixcomwd.c
index 7fc2188386d9..d8dede575402 100644
--- a/drivers/char/watchdog/mixcomwd.c
+++ b/drivers/char/watchdog/mixcomwd.c
@@ -45,6 +45,8 @@
 #include <linux/fs.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/timer.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
diff --git a/drivers/char/watchdog/pcwd.c b/drivers/char/watchdog/pcwd.c
index 427ad51b7a35..37c9e13ad3ac 100644
--- a/drivers/char/watchdog/pcwd.c
+++ b/drivers/char/watchdog/pcwd.c
@@ -66,7 +66,7 @@
 #include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/reboot.h>
-
+#include <linux/sched.h>        /* TASK_INTERRUPTIBLE, set_current_state() and friends */
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
diff --git a/drivers/char/watchdog/pcwd_pci.c b/drivers/char/watchdog/pcwd_pci.c
index 0b8e493be045..5308e5c8f29a 100644
--- a/drivers/char/watchdog/pcwd_pci.c
+++ b/drivers/char/watchdog/pcwd_pci.c
@@ -753,6 +753,7 @@ static struct pci_device_id pcipcwd_pci_tbl[] = {
 MODULE_DEVICE_TABLE(pci, pcipcwd_pci_tbl);
 
 static struct pci_driver pcipcwd_driver = {
+        .owner          = THIS_MODULE,
         .name           = WATCHDOG_NAME,
         .id_table       = pcipcwd_pci_tbl,
         .probe          = pcipcwd_card_init,
diff --git a/drivers/char/watchdog/sc520_wdt.c b/drivers/char/watchdog/sc520_wdt.c
index 72501be79b0c..4ee9974ad8cb 100644
--- a/drivers/char/watchdog/sc520_wdt.c
+++ b/drivers/char/watchdog/sc520_wdt.c
@@ -63,6 +63,7 @@
 #include <linux/notifier.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
diff --git a/drivers/char/watchdog/softdog.c b/drivers/char/watchdog/softdog.c
index 20e5eb8667f2..a91edaf3a350 100644
--- a/drivers/char/watchdog/softdog.c
+++ b/drivers/char/watchdog/softdog.c
@@ -47,6 +47,8 @@
 #include <linux/notifier.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
+
 #include <asm/uaccess.h>
 
 #define PFX "SoftDog: "
diff --git a/drivers/char/watchdog/wdt_pci.c b/drivers/char/watchdog/wdt_pci.c
index 4b3311993d48..dc9370f6c348 100644
--- a/drivers/char/watchdog/wdt_pci.c
+++ b/drivers/char/watchdog/wdt_pci.c
@@ -711,6 +711,7 @@ MODULE_DEVICE_TABLE(pci, wdtpci_pci_tbl);
 
 
 static struct pci_driver wdtpci_driver = {
+        .owner          = THIS_MODULE,
         .name           = "wdt_pci",
         .id_table       = wdtpci_pci_tbl,
         .probe          = wdtpci_init_one,
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 109d62ccf651..6c6121b85a54 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -4,6 +4,9 @@
  *  Copyright (C) 2001 Russell King
  *            (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
  *
+ *  Oct 2005 - Ashok Raj <ashok.raj@intel.com>
+ *                      Added handling for CPU hotplug
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
@@ -36,13 +39,6 @@ static struct cpufreq_policy	*cpufreq_cpu_data[NR_CPUS];
 static DEFINE_SPINLOCK(cpufreq_driver_lock);
 
 
-/* we keep a copy of all ->add'ed CPU's struct sys_device here;
- * as it is only accessed in ->add and ->remove, no lock or reference
- * count is necessary.
- */
-static struct sys_device        *cpu_sys_devices[NR_CPUS];
-
-
 /* internal prototypes */
 static int __cpufreq_governor(struct cpufreq_policy *policy, unsigned int event);
 static void handle_update(void *data);
@@ -574,6 +570,9 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
         unsigned long flags;
         unsigned int j;
 
+        if (cpu_is_offline(cpu))
+                return 0;
+
         cpufreq_debug_disable_ratelimit();
         dprintk("adding CPU %u\n", cpu);
 
@@ -582,7 +581,6 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
          * CPU because it is in the same boat. */
         policy = cpufreq_cpu_get(cpu);
         if (unlikely(policy)) {
-                cpu_sys_devices[cpu] = sys_dev;
                 dprintk("CPU already managed, adding link\n");
                 sysfs_create_link(&sys_dev->kobj, &policy->kobj, "cpufreq");
                 cpufreq_debug_enable_ratelimit();
@@ -657,7 +655,6 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
         }
 
         module_put(cpufreq_driver->owner);
-        cpu_sys_devices[cpu] = sys_dev;
         dprintk("initialization complete\n");
         cpufreq_debug_enable_ratelimit();
         
@@ -682,7 +679,7 @@ err_out:
 
 nomem_out:
         module_put(cpufreq_driver->owner);
- module_out:
+module_out:
         cpufreq_debug_enable_ratelimit();
         return ret;
 }
@@ -698,6 +695,7 @@ static int cpufreq_remove_dev (struct sys_device * sys_dev)
         unsigned int cpu = sys_dev->id;
         unsigned long flags;
         struct cpufreq_policy *data;
+        struct sys_device *cpu_sys_dev;
 #ifdef CONFIG_SMP
         unsigned int j;
 #endif
@@ -710,7 +708,6 @@ static int cpufreq_remove_dev (struct sys_device * sys_dev)
 
         if (!data) {
                 spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
-                cpu_sys_devices[cpu] = NULL;
                 cpufreq_debug_enable_ratelimit();
                 return -EINVAL;
         }
@@ -725,14 +722,12 @@ static int cpufreq_remove_dev (struct sys_device * sys_dev)
                 dprintk("removing link\n");
                 spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
                 sysfs_remove_link(&sys_dev->kobj, "cpufreq");
-                cpu_sys_devices[cpu] = NULL;
                 cpufreq_cpu_put(data);
                 cpufreq_debug_enable_ratelimit();
                 return 0;
         }
 #endif
 
-        cpu_sys_devices[cpu] = NULL;
 
         if (!kobject_get(&data->kobj)) {
                 spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
@@ -761,7 +756,8 @@ static int cpufreq_remove_dev (struct sys_device * sys_dev)
                         if (j == cpu)
                                 continue;
                         dprintk("removing link for cpu %u\n", j);
-                        sysfs_remove_link(&cpu_sys_devices[j]->kobj, "cpufreq");
+                        cpu_sys_dev = get_cpu_sysdev(j);
+                        sysfs_remove_link(&cpu_sys_dev->kobj, "cpufreq");
                         cpufreq_cpu_put(data);
                 }
         }
@@ -772,7 +768,6 @@ static int cpufreq_remove_dev (struct sys_device * sys_dev)
         down(&data->lock);
         if (cpufreq_driver->target)
                 __cpufreq_governor(data, CPUFREQ_GOV_STOP);
-        cpufreq_driver->target = NULL;
         up(&data->lock);
 
         kobject_unregister(&data->kobj);
@@ -1119,17 +1114,30 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
                             unsigned int relation)
 {
         int retval = -EINVAL;
-        lock_cpu_hotplug();
+
+        /*
+         * Converted the lock_cpu_hotplug to preempt_disable()
+         * and preempt_enable(). This is a bit kludgy and relies on how cpu
+         * hotplug works. All we need is a guarantee that cpu hotplug won't make
+         * progress on any cpu. Once we do preempt_disable(), this would ensure
+         * that hotplug threads don't get onto this cpu, thereby delaying
+         * the cpu remove process.
+         *
+         * We removed the lock_cpu_hotplug since we need to call this function
+         * via cpu hotplug callbacks, which result in locking the cpu hotplug
+         * thread itself. Agree this is not very clean, cpufreq community
+         * could improve this if required. - Ashok Raj <ashok.raj@intel.com>
+         */
+        preempt_disable();
         dprintk("target for CPU %u: %u kHz, relation %u\n", policy->cpu,
                 target_freq, relation);
         if (cpu_online(policy->cpu) && cpufreq_driver->target)
                 retval = cpufreq_driver->target(policy, target_freq, relation);
-        unlock_cpu_hotplug();
+        preempt_enable();
         return retval;
 }
 EXPORT_SYMBOL_GPL(__cpufreq_driver_target);
 
-
 int cpufreq_driver_target(struct cpufreq_policy *policy,
                           unsigned int target_freq,
                           unsigned int relation)
@@ -1416,6 +1424,45 @@ int cpufreq_update_policy(unsigned int cpu)
 }
 EXPORT_SYMBOL(cpufreq_update_policy);
 
+static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb,
+                                        unsigned long action, void *hcpu)
+{
+        unsigned int cpu = (unsigned long)hcpu;
+        struct cpufreq_policy *policy;
+        struct sys_device *sys_dev;
+
+        sys_dev = get_cpu_sysdev(cpu);
+
+        if (sys_dev) {
+                switch (action) {
+                case CPU_ONLINE:
+                        cpufreq_add_dev(sys_dev);
+                        break;
+                case CPU_DOWN_PREPARE:
+                        /*
+                         * We attempt to put this cpu in lowest frequency
+                         * possible before going down. This will permit
+                         * hardware-managed P-State to switch other related
+                         * threads to min or higher speeds if possible.
+                         */
+                        policy = cpufreq_cpu_data[cpu];
+                        if (policy) {
+                                cpufreq_driver_target(policy, policy->min,
+                                                CPUFREQ_RELATION_H);
+                        }
+                        break;
+                case CPU_DEAD:
+                        cpufreq_remove_dev(sys_dev);
+                        break;
+                }
+        }
+        return NOTIFY_OK;
+}
+
+static struct notifier_block cpufreq_cpu_notifier =
+{
+    .notifier_call = cpufreq_cpu_callback,
+};
 
 /*********************************************************************
  *               REGISTER / UNREGISTER CPUFREQ DRIVER                *
@@ -1476,6 +1523,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
         }
 
         if (!ret) {
+                register_cpu_notifier(&cpufreq_cpu_notifier);
                 dprintk("driver %s up and running\n", driver_data->name);
                 cpufreq_debug_enable_ratelimit();
         }
@@ -1507,6 +1555,7 @@ int cpufreq_unregister_driver(struct cpufreq_driver *driver)
         dprintk("unregistering driver %s\n", driver->name);
 
         sysdev_driver_unregister(&cpu_sysdev_class, &cpufreq_sysdev_driver);
+        unregister_cpu_notifier(&cpufreq_cpu_notifier);
 
         spin_lock_irqsave(&cpufreq_driver_lock, flags);
         cpufreq_driver = NULL;
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 741b6b191e6a..3597f25d5efa 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -19,6 +19,7 @@
 #include <linux/percpu.h>
 #include <linux/kobject.h>
 #include <linux/spinlock.h>
+#include <linux/notifier.h>
 #include <asm/cputime.h>
 
 static spinlock_t cpufreq_stats_lock;
@@ -298,6 +299,27 @@ cpufreq_stat_notifier_trans (struct notifier_block *nb, unsigned long val,
         return 0;
 }
 
+static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
+                                        unsigned long action, void *hcpu)
+{
+        unsigned int cpu = (unsigned long)hcpu;
+
+        switch (action) {
+        case CPU_ONLINE:
+                cpufreq_update_policy(cpu);
+                break;
+        case CPU_DEAD:
+                cpufreq_stats_free_table(cpu);
+                break;
+        }
+        return NOTIFY_OK;
+}
+
+static struct notifier_block cpufreq_stat_cpu_notifier =
+{
+        .notifier_call = cpufreq_stat_cpu_callback,
+};
+
 static struct notifier_block notifier_policy_block = {
         .notifier_call = cpufreq_stat_notifier_policy
 };
@@ -311,6 +333,7 @@ __init cpufreq_stats_init(void)
 {
         int ret;
         unsigned int cpu;
+
         spin_lock_init(&cpufreq_stats_lock);
         if ((ret = cpufreq_register_notifier(&notifier_policy_block,
                                 CPUFREQ_POLICY_NOTIFIER)))
@@ -323,20 +346,31 @@ __init cpufreq_stats_init(void)
                 return ret;
         }
 
-        for_each_cpu(cpu)
-                cpufreq_update_policy(cpu);
+        register_cpu_notifier(&cpufreq_stat_cpu_notifier);
+        lock_cpu_hotplug();
+        for_each_online_cpu(cpu) {
+                cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, CPU_ONLINE,
+                        (void *)(long)cpu);
+        }
+        unlock_cpu_hotplug();
         return 0;
 }
 static void
 __exit cpufreq_stats_exit(void)
 {
         unsigned int cpu;
+
         cpufreq_unregister_notifier(&notifier_policy_block,
                         CPUFREQ_POLICY_NOTIFIER);
         cpufreq_unregister_notifier(&notifier_trans_block,
                         CPUFREQ_TRANSITION_NOTIFIER);
-        for_each_cpu(cpu)
-                cpufreq_stats_free_table(cpu);
+        unregister_cpu_notifier(&cpufreq_stat_cpu_notifier);
+        lock_cpu_hotplug();
+        for_each_online_cpu(cpu) {
+                cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, CPU_DEAD,
+                        (void *)(long)cpu);
+        }
+        unlock_cpu_hotplug();
 }
 
 MODULE_AUTHOR ("Zou Nan hai <nanhai.zou@intel.com>");
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 094835cce321..4263935443cc 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -2,7 +2,7 @@ menu "Hardware crypto devices"
 
 config CRYPTO_DEV_PADLOCK
         tristate "Support for VIA PadLock ACE"
-        depends on CRYPTO && X86 && !X86_64
+        depends on CRYPTO && X86_32
         help
           Some VIA processors come with an integrated crypto engine
           (so called VIA PadLock ACE, Advanced Cryptography Engine)
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 327b58e64875..b6815c6c29a2 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -70,8 +70,7 @@ config DELL_RBU
 
 config DCDBAS
         tristate "Dell Systems Management Base Driver"
-        depends on X86 || X86_64
-        default m
+        depends on X86
         help
           The Dell Systems Management Base Driver provides a sysfs interface
           for systems management software to perform System Management
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 74af7e074868..8b9d85526596 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2211,13 +2211,12 @@ static int cdrom_read_toc(ide_drive_t *drive, struct request_sense *sense)
 
         if (toc == NULL) {
                 /* Try to allocate space. */
-                toc = (struct atapi_toc *) kmalloc (sizeof (struct atapi_toc),
-                                                    GFP_KERNEL);
-                info->toc = toc;
+                toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
                 if (toc == NULL) {
                         printk (KERN_ERR "%s: No cdrom TOC buffer!\n", drive->name);
                         return -ENOMEM;
                 }
+                info->toc = toc;
         }
 
         /* Check to see if the existing data is still valid.
@@ -2240,7 +2239,8 @@ static int cdrom_read_toc(ide_drive_t *drive, struct request_sense *sense)
         /* First read just the header, so we know how long the TOC is. */
         stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
                                     sizeof(struct atapi_toc_header), sense);
-        if (stat) return stat;
+        if (stat)
+                return stat;
 
 #if ! STANDARD_ATAPI
         if (CDROM_CONFIG_FLAGS(drive)->toctracks_as_bcd) {
@@ -2324,7 +2324,8 @@ static int cdrom_read_toc(ide_drive_t *drive, struct request_sense *sense)
                 /* Read the multisession information. */
                 stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
                                            sizeof(ms_tmp), sense);
-                if (stat) return stat;
+                if (stat)
+                        return stat;
 
                 toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
         } else {
@@ -2460,7 +2461,7 @@ static int ide_cdrom_packet(struct cdrom_device_info *cdi,
                             struct packet_command *cgc)
 {
         struct request req;
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
 
         if (cgc->timeout <= 0)
                 cgc->timeout = ATAPI_WAIT_PC;
@@ -2537,7 +2538,7 @@ int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
                            unsigned int cmd, void *arg)
                            
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         struct cdrom_info *info = drive->driver_data;
         int stat;
 
@@ -2548,7 +2549,7 @@ int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
          */
         case CDROMPLAYTRKIND: {
                 unsigned long lba_start, lba_end;
-                struct cdrom_ti *ti = (struct cdrom_ti *)arg;
+                struct cdrom_ti *ti = arg;
                 struct atapi_toc_entry *first_toc, *last_toc;
 
                 stat = cdrom_get_toc_entry(drive, ti->cdti_trk0, &first_toc);
@@ -2571,12 +2572,13 @@ int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
         }
 
         case CDROMREADTOCHDR: {
-                struct cdrom_tochdr *tochdr = (struct cdrom_tochdr *) arg;
+                struct cdrom_tochdr *tochdr = arg;
                 struct atapi_toc *toc;
 
                 /* Make sure our saved TOC is valid. */
                 stat = cdrom_read_toc(drive, NULL);
-                if (stat) return stat;
+                if (stat)
+                        return stat;
 
                 toc = info->toc;
                 tochdr->cdth_trk0 = toc->hdr.first_track;
@@ -2586,11 +2588,12 @@ int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
         }
 
         case CDROMREADTOCENTRY: {
-                struct cdrom_tocentry *tocentry = (struct cdrom_tocentry*) arg;
+                struct cdrom_tocentry *tocentry = arg;
                 struct atapi_toc_entry *toce;
 
                 stat = cdrom_get_toc_entry(drive, tocentry->cdte_track, &toce);
-                if (stat) return stat;
+                if (stat)
+                        return stat;
 
                 tocentry->cdte_ctrl = toce->control;
                 tocentry->cdte_adr  = toce->adr;
@@ -2613,7 +2616,7 @@ int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
 static
 int ide_cdrom_reset (struct cdrom_device_info *cdi)
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         struct request_sense sense;
         struct request req;
         int ret;
@@ -2636,12 +2639,13 @@ int ide_cdrom_reset (struct cdrom_device_info *cdi)
 static
 int ide_cdrom_tray_move (struct cdrom_device_info *cdi, int position)
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         struct request_sense sense;
 
         if (position) {
                 int stat = cdrom_lockdoor(drive, 0, &sense);
-                if (stat) return stat;
+                if (stat)
+                        return stat;
         }
 
         return cdrom_eject(drive, !position, &sense);
@@ -2650,7 +2654,7 @@ int ide_cdrom_tray_move (struct cdrom_device_info *cdi, int position)
 static
 int ide_cdrom_lock_door (struct cdrom_device_info *cdi, int lock)
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         return cdrom_lockdoor(drive, lock, NULL);
 }
 
@@ -2700,7 +2704,7 @@ void ide_cdrom_update_speed (ide_drive_t *drive, struct atapi_capabilities_page
 static
 int ide_cdrom_select_speed (struct cdrom_device_info *cdi, int speed)
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         struct request_sense sense;
         struct atapi_capabilities_page cap;
         int stat;
@@ -2723,7 +2727,7 @@ int ide_cdrom_select_speed (struct cdrom_device_info *cdi, int speed)
 static
 int ide_cdrom_drive_status (struct cdrom_device_info *cdi, int slot_nr)
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         struct media_event_desc med;
         struct request_sense sense;
         int stat;
@@ -2769,7 +2773,7 @@ int ide_cdrom_get_last_session (struct cdrom_device_info *cdi,
                                 struct cdrom_multisession *ms_info)
 {
         struct atapi_toc *toc;
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         struct cdrom_info *info = drive->driver_data;
         struct request_sense sense;
         int ret;
@@ -2791,7 +2795,7 @@ int ide_cdrom_get_mcn (struct cdrom_device_info *cdi,
 {
         int stat;
         char mcnbuf[24];
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
 
 /* get MCN */
         if ((stat = cdrom_read_subchannel(drive, 2, mcnbuf, sizeof (mcnbuf), NULL)))
@@ -2815,7 +2819,7 @@ static
 int ide_cdrom_check_media_change_real (struct cdrom_device_info *cdi,
                                        int slot_nr)
 {
-        ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+        ide_drive_t *drive = cdi->handle;
         int retval;
         
         if (slot_nr == CDSL_CURRENT) {
@@ -2886,7 +2890,7 @@ static int ide_cdrom_register (ide_drive_t *drive, int nslots)
         devinfo->mask = 0;
         devinfo->speed = CDROM_STATE_FLAGS(drive)->current_speed;
         devinfo->capacity = nslots;
-        devinfo->handle = (void *) drive;
+        devinfo->handle = drive;
         strcpy(devinfo->name, drive->name);
         
         /* set capability mask to match the probe. */
@@ -2942,7 +2946,7 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
          * registered with the Uniform layer yet, it can't do this.
          * Same goes for cdi->ops.
          */
-        cdi->handle = (ide_drive_t *) drive;
+        cdi->handle = drive;
         cdi->ops = &ide_cdrom_dops;
 
         if (ide_cdrom_get_capabilities(drive, &cap))
@@ -3254,6 +3258,7 @@ int ide_cdrom_setup (ide_drive_t *drive)
         return 0;
 }
 
+#ifdef CONFIG_PROC_FS
 static
 sector_t ide_cdrom_capacity (ide_drive_t *drive)
 {
@@ -3264,6 +3269,7 @@ sector_t ide_cdrom_capacity (ide_drive_t *drive)
 
         return capacity * sectors_per_frame;
 }
+#endif
 
 static int ide_cd_remove(struct device *dev)
 {
@@ -3309,7 +3315,7 @@ static int ide_cd_probe(struct device *);
 static int proc_idecd_read_capacity
         (char *page, char **start, off_t off, int count, int *eof, void *data)
 {
-        ide_drive_t*drive = (ide_drive_t *)data;
+        ide_drive_t *drive = data;
         int len;
 
         len = sprintf(page,"%llu\n", (long long)ide_cdrom_capacity(drive));
@@ -3449,7 +3455,7 @@ static int ide_cd_probe(struct device *dev)
                 printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi emulation.\n", drive->name);
                 goto failed;
         }
-        info = (struct cdrom_info *) kmalloc (sizeof (struct cdrom_info), GFP_KERNEL);
+        info = kmalloc(sizeof(struct cdrom_info), GFP_KERNEL);
         if (info == NULL) {
                 printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", drive->name);
                 goto failed;
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 87d1f8a1f41e..d8c3d8ebad30 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -81,7 +81,7 @@ typedef struct pmac_ide_hwif {
         
 } pmac_ide_hwif_t;
 
-static pmac_ide_hwif_t pmac_ide[MAX_HWIFS] __pmacdata;
+static pmac_ide_hwif_t pmac_ide[MAX_HWIFS];
 static int pmac_ide_count;
 
 enum {
@@ -242,7 +242,7 @@ struct mdma_timings_t {
         int     cycleTime;
 };
 
-struct mdma_timings_t mdma_timings_33[] __pmacdata =
+struct mdma_timings_t mdma_timings_33[] =
 {
     { 240, 240, 480 },
     { 180, 180, 360 },
@@ -255,7 +255,7 @@ struct mdma_timings_t mdma_timings_33[] __pmacdata =
     {   0,   0,   0 }
 };
 
-struct mdma_timings_t mdma_timings_33k[] __pmacdata =
+struct mdma_timings_t mdma_timings_33k[] =
 {
     { 240, 240, 480 },
     { 180, 180, 360 },
@@ -268,7 +268,7 @@ struct mdma_timings_t mdma_timings_33k[] __pmacdata =
     {   0,   0,   0 }
 };
 
-struct mdma_timings_t mdma_timings_66[] __pmacdata =
+struct mdma_timings_t mdma_timings_66[] =
 {
     { 240, 240, 480 },
     { 180, 180, 360 },
@@ -286,7 +286,7 @@ struct {
         int     addrSetup; /* ??? */
         int     rdy2pause;
         int     wrDataSetup;
-} kl66_udma_timings[] __pmacdata =
+} kl66_udma_timings[] =
 {
     {   0, 180,  120 }, /* Mode 0 */
     {   0, 150,  90 },  /*      1 */
@@ -301,7 +301,7 @@ struct kauai_timing {
         u32     timing_reg;
 };
 
-static struct kauai_timing      kauai_pio_timings[] __pmacdata =
+static struct kauai_timing      kauai_pio_timings[] =
 {
         { 930   , 0x08000fff },
         { 600   , 0x08000a92 },
@@ -316,7 +316,7 @@ static struct kauai_timing	kauai_pio_timings[] __pmacdata =
         { 120   , 0x04000148 }
 };
 
-static struct kauai_timing      kauai_mdma_timings[] __pmacdata =
+static struct kauai_timing      kauai_mdma_timings[] =
 {
         { 1260  , 0x00fff000 },
         { 480   , 0x00618000 },
@@ -330,7 +330,7 @@ static struct kauai_timing	kauai_mdma_timings[] __pmacdata =
         { 0     , 0 },
 };
 
-static struct kauai_timing      kauai_udma_timings[] __pmacdata =
+static struct kauai_timing      kauai_udma_timings[] =
 {
         { 120   , 0x000070c0 },
         { 90    , 0x00005d80 },
@@ -341,7 +341,7 @@ static struct kauai_timing	kauai_udma_timings[] __pmacdata =
         { 0     , 0 },
 };
 
-static struct kauai_timing      shasta_pio_timings[] __pmacdata =
+static struct kauai_timing      shasta_pio_timings[] =
 {
         { 930   , 0x08000fff },
         { 600   , 0x0A000c97 },
@@ -356,7 +356,7 @@ static struct kauai_timing	shasta_pio_timings[] __pmacdata =
         { 120   , 0x0400010a }
 };
 
-static struct kauai_timing      shasta_mdma_timings[] __pmacdata =
+static struct kauai_timing      shasta_mdma_timings[] =
 {
         { 1260  , 0x00fff000 },
         { 480   , 0x00820800 },
@@ -370,7 +370,7 @@ static struct kauai_timing	shasta_mdma_timings[] __pmacdata =
         { 0     , 0 },
 };
 
-static struct kauai_timing      shasta_udma133_timings[] __pmacdata =
+static struct kauai_timing      shasta_udma133_timings[] =
 {
         { 120   , 0x00035901, },
         { 90    , 0x000348b1, },
@@ -522,7 +522,7 @@ pmu_hd_blink_init(void)
  * N.B. this can't be an initfunc, because the media-bay task can
  * call ide_[un]register at any time.
  */
-void __pmac
+void
 pmac_ide_init_hwif_ports(hw_regs_t *hw,
                               unsigned long data_port, unsigned long ctrl_port,
                               int *irq)
@@ -559,7 +559,7 @@ pmac_ide_init_hwif_ports(hw_regs_t *hw,
  * timing register when selecting that unit. This version is for
  * ASICs with a single timing register
  */
-static void __pmac
+static void
 pmac_ide_selectproc(ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
@@ -579,7 +579,7 @@ pmac_ide_selectproc(ide_drive_t *drive)
  * timing register when selecting that unit. This version is for
  * ASICs with a dual timing register (Kauai)
  */
-static void __pmac
+static void
 pmac_ide_kauai_selectproc(ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
@@ -600,7 +600,7 @@ pmac_ide_kauai_selectproc(ide_drive_t *drive)
 /*
  * Force an update of controller timing values for a given drive
  */
-static void __pmac
+static void
 pmac_ide_do_update_timings(ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
@@ -633,7 +633,7 @@ pmac_outbsync(ide_drive_t *drive, u8 value, unsigned long port)
  * to sort that out sooner or later and see if I can finally get the
  * common version to work properly in all cases
  */
-static int __pmac
+static int
 pmac_ide_do_setfeature(ide_drive_t *drive, u8 command)
 {
         ide_hwif_t *hwif = HWIF(drive);
@@ -710,7 +710,7 @@ out:
 /*
  * Old tuning functions (called on hdparm -p), sets up drive PIO timings
  */
-static void __pmac
+static void
 pmac_ide_tuneproc(ide_drive_t *drive, u8 pio)
 {
         ide_pio_data_t d;
@@ -801,7 +801,7 @@ pmac_ide_tuneproc(ide_drive_t *drive, u8 pio)
 /*
  * Calculate KeyLargo ATA/66 UDMA timings
  */
-static int __pmac
+static int
 set_timings_udma_ata4(u32 *timings, u8 speed)
 {
         unsigned rdyToPauseTicks, wrDataSetupTicks, addrTicks;
@@ -829,7 +829,7 @@ set_timings_udma_ata4(u32 *timings, u8 speed)
 /*
  * Calculate Kauai ATA/100 UDMA timings
  */
-static int __pmac
+static int
 set_timings_udma_ata6(u32 *pio_timings, u32 *ultra_timings, u8 speed)
 {
         struct ide_timing *t = ide_timing_find_mode(speed);
@@ -849,7 +849,7 @@ set_timings_udma_ata6(u32 *pio_timings, u32 *ultra_timings, u8 speed)
 /*
  * Calculate Shasta ATA/133 UDMA timings
  */
-static int __pmac
+static int
 set_timings_udma_shasta(u32 *pio_timings, u32 *ultra_timings, u8 speed)
 {
         struct ide_timing *t = ide_timing_find_mode(speed);
@@ -869,7 +869,7 @@ set_timings_udma_shasta(u32 *pio_timings, u32 *ultra_timings, u8 speed)
 /*
  * Calculate MDMA timings for all cells
  */
-static int __pmac
+static int
 set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
                         u8 speed, int drive_cycle_time)
 {
@@ -1014,7 +1014,7 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
  * our dedicated function is more precise as it uses the drive provided
  * cycle time value. We should probably fix this one to deal with that too...
  */
-static int __pmac
+static int
 pmac_ide_tune_chipset (ide_drive_t *drive, byte speed)
 {
         int unit = (drive->select.b.unit & 0x01);
@@ -1092,7 +1092,7 @@ pmac_ide_tune_chipset (ide_drive_t *drive, byte speed)
  * Blast some well known "safe" values to the timing registers at init or
  * wakeup from sleep time, before we do real calculation
  */
-static void __pmac
+static void
 sanitize_timings(pmac_ide_hwif_t *pmif)
 {
         unsigned int value, value2 = 0;
@@ -1123,13 +1123,13 @@ sanitize_timings(pmac_ide_hwif_t *pmif)
         pmif->timings[2] = pmif->timings[3] = value2;
 }
 
-unsigned long __pmac
+unsigned long
 pmac_ide_get_base(int index)
 {
         return pmac_ide[index].regbase;
 }
 
-int __pmac
+int
 pmac_ide_check_base(unsigned long base)
 {
         int ix;
@@ -1140,7 +1140,7 @@ pmac_ide_check_base(unsigned long base)
         return -1;
 }
 
-int __pmac
+int
 pmac_ide_get_irq(unsigned long base)
 {
         int ix;
@@ -1151,7 +1151,7 @@ pmac_ide_get_irq(unsigned long base)
         return 0;
 }
 
-static int ide_majors[]  __pmacdata = { 3, 22, 33, 34, 56, 57 };
+static int ide_majors[] = { 3, 22, 33, 34, 56, 57 };
 
 dev_t __init
 pmac_find_ide_boot(char *bootdevice, int n)
@@ -1701,7 +1701,7 @@ pmac_ide_probe(void)
  * pmac_ide_build_dmatable builds the DBDMA command list
  * for a transfer and sets the DBDMA channel to point to it.
  */
-static int __pmac
+static int
 pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 {
         struct dbdma_cmd *table;
@@ -1785,7 +1785,7 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 }
 
 /* Teardown mappings after DMA has completed.  */
-static void __pmac
+static void
 pmac_ide_destroy_dmatable (ide_drive_t *drive)
 {
         ide_hwif_t *hwif = drive->hwif;
@@ -1802,7 +1802,7 @@ pmac_ide_destroy_dmatable (ide_drive_t *drive)
 /*
  * Pick up best MDMA timing for the drive and apply it
  */
-static int __pmac
+static int
 pmac_ide_mdma_enable(ide_drive_t *drive, u16 mode)
 {
         ide_hwif_t *hwif = HWIF(drive);
@@ -1859,7 +1859,7 @@ pmac_ide_mdma_enable(ide_drive_t *drive, u16 mode)
 /*
  * Pick up best UDMA timing for the drive and apply it
  */
-static int __pmac
+static int
 pmac_ide_udma_enable(ide_drive_t *drive, u16 mode)
 {
         ide_hwif_t *hwif = HWIF(drive);
@@ -1915,7 +1915,7 @@ pmac_ide_udma_enable(ide_drive_t *drive, u16 mode)
  * Check what is the best DMA timing setting for the drive and
  * call appropriate functions to apply it.
  */
-static int __pmac
+static int
 pmac_ide_dma_check(ide_drive_t *drive)
 {
         struct hd_driveid *id = drive->id;
@@ -1967,7 +1967,7 @@ pmac_ide_dma_check(ide_drive_t *drive)
  * Prepare a DMA transfer. We build the DMA table, adjust the timings for
  * a read on KeyLargo ATA/66 and mark us as waiting for DMA completion
  */
-static int __pmac
+static int
 pmac_ide_dma_setup(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = HWIF(drive);
@@ -1997,7 +1997,7 @@ pmac_ide_dma_setup(ide_drive_t *drive)
         return 0;
 }
 
-static void __pmac
+static void
 pmac_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
 {
         /* issue cmd to drive */
@@ -2008,7 +2008,7 @@ pmac_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
  * Kick the DMA controller into life after the DMA command has been issued
  * to the drive.
  */
-static void __pmac
+static void
 pmac_ide_dma_start(ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
@@ -2024,7 +2024,7 @@ pmac_ide_dma_start(ide_drive_t *drive)
 /*
  * After a DMA transfer, make sure the controller is stopped
  */
-static int __pmac
+static int
 pmac_ide_dma_end (ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
@@ -2052,7 +2052,7 @@ pmac_ide_dma_end (ide_drive_t *drive)
  * that's not implemented yet), on the other hand, we don't have shared interrupts
  * so it's not really a problem
  */
-static int __pmac
+static int
 pmac_ide_dma_test_irq (ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
@@ -2108,19 +2108,19 @@ pmac_ide_dma_test_irq (ide_drive_t *drive)
         return 1;
 }
 
-static int __pmac
+static int
 pmac_ide_dma_host_off (ide_drive_t *drive)
 {
         return 0;
 }
 
-static int __pmac
+static int
 pmac_ide_dma_host_on (ide_drive_t *drive)
 {
         return 0;
 }
 
-static int __pmac
+static int
 pmac_ide_dma_lostirq (ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index f014e639088c..c57a3871184c 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -38,6 +38,7 @@
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/sched.h>        /* INIT_WORK, schedule_work(), flush_scheduled_work() */
 
 #include <rdma/ib_cache.h>
 
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 89ce9dc210d4..acda7d63d6fe 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -43,6 +43,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/kref.h>
 #include <linux/idr.h>
+#include <linux/workqueue.h>
 
 #include <rdma/ib_pack.h>
 #include <rdma/ib_sa.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_av.c b/drivers/infiniband/hw/mthca/mthca_av.c
index 889e85096736..22fdc446f25c 100644
--- a/drivers/infiniband/hw/mthca/mthca_av.c
+++ b/drivers/infiniband/hw/mthca/mthca_av.c
@@ -34,6 +34,8 @@
  */
 
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_cache.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c
index 8561b297a19b..1229c604c6e0 100644
--- a/drivers/infiniband/hw/mthca/mthca_mad.c
+++ b/drivers/infiniband/hw/mthca/mthca_mad.c
@@ -34,6 +34,9 @@
  * $Id: mthca_mad.c 1349 2004-12-16 21:09:43Z roland $
  */
 
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_mad.h>
 #include <rdma/ib_smi.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_mcg.c b/drivers/infiniband/hw/mthca/mthca_mcg.c
index b47ea7daf088..2fc449da418d 100644
--- a/drivers/infiniband/hw/mthca/mthca_mcg.c
+++ b/drivers/infiniband/hw/mthca/mthca_mcg.c
@@ -33,6 +33,8 @@
  */
 
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "mthca_dev.h"
 #include "mthca_cmd.h"
diff --git a/drivers/infiniband/hw/mthca/mthca_profile.c b/drivers/infiniband/hw/mthca/mthca_profile.c
index 0576056b34f4..bd1338682074 100644
--- a/drivers/infiniband/hw/mthca/mthca_profile.c
+++ b/drivers/infiniband/hw/mthca/mthca_profile.c
@@ -35,6 +35,8 @@
 
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "mthca_profile.h"
 
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 62ff091505da..7c9afde5ace5 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -36,6 +36,8 @@
  */
 
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_cache.h>
diff --git a/drivers/infiniband/hw/mthca/mthca_reset.c b/drivers/infiniband/hw/mthca/mthca_reset.c
index 4f995391dd1d..df5e494a9d38 100644
--- a/drivers/infiniband/hw/mthca/mthca_reset.c
+++ b/drivers/infiniband/hw/mthca/mthca_reset.c
@@ -37,6 +37,7 @@
 #include <linux/errno.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 
 #include "mthca_dev.h"
 #include "mthca_cmd.h"
diff --git a/drivers/infiniband/hw/mthca/mthca_uar.c b/drivers/infiniband/hw/mthca/mthca_uar.c
index 1c8791ded6ff..8e9219842be4 100644
--- a/drivers/infiniband/hw/mthca/mthca_uar.c
+++ b/drivers/infiniband/hw/mthca/mthca_uar.c
@@ -32,6 +32,8 @@
  * $Id$
  */
 
+#include <asm/page.h>           /* PAGE_SHIFT */
+
 #include "mthca_dev.h"
 #include "mthca_memfree.h"
 
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index ab09cf4093e3..0506934244f0 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/sched.h>        /* HZ */
 
 /*#include <asm/io.h>*/
 
diff --git a/drivers/input/joystick/a3d.c b/drivers/input/joystick/a3d.c
index bf65430181fa..4571ea3a4b92 100644
--- a/drivers/input/joystick/a3d.c
+++ b/drivers/input/joystick/a3d.c
@@ -34,6 +34,7 @@
 #include <linux/init.h>
 #include <linux/gameport.h>
 #include <linux/input.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "FP-Gaming Assasin 3D joystick driver"
 
diff --git a/drivers/input/joystick/adi.c b/drivers/input/joystick/adi.c
index 9d95459f4bcb..704bf70f1db7 100644
--- a/drivers/input/joystick/adi.c
+++ b/drivers/input/joystick/adi.c
@@ -34,6 +34,7 @@
 #include <linux/input.h>
 #include <linux/gameport.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Logitech ADI joystick family driver"
 
diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
index c75ac6eb1ffb..3121961e3e7c 100644
--- a/drivers/input/joystick/analog.c
+++ b/drivers/input/joystick/analog.c
@@ -38,6 +38,7 @@
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/gameport.h>
+#include <linux/jiffies.h>
 #include <asm/timex.h>
 
 #define DRIVER_DESC     "Analog joystick and gamepad driver"
diff --git a/drivers/input/joystick/cobra.c b/drivers/input/joystick/cobra.c
index 9a3dfc724a41..1909f7ef340c 100644
--- a/drivers/input/joystick/cobra.c
+++ b/drivers/input/joystick/cobra.c
@@ -34,6 +34,7 @@
 #include <linux/init.h>
 #include <linux/gameport.h>
 #include <linux/input.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Creative Labs Blaster GamePad Cobra driver"
 
diff --git a/drivers/input/joystick/gf2k.c b/drivers/input/joystick/gf2k.c
index e151f8c5bcb9..8a3ad455eb38 100644
--- a/drivers/input/joystick/gf2k.c
+++ b/drivers/input/joystick/gf2k.c
@@ -35,6 +35,7 @@
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/gameport.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Genius Flight 2000 joystick driver"
 
diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c
index e206bb56e53c..a936e7aedb10 100644
--- a/drivers/input/joystick/grip.c
+++ b/drivers/input/joystick/grip.c
@@ -34,6 +34,7 @@
 #include <linux/slab.h>
 #include <linux/gameport.h>
 #include <linux/input.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Gravis GrIP protocol joystick driver"
 
diff --git a/drivers/input/joystick/grip_mp.c b/drivers/input/joystick/grip_mp.c
index a0ba93ccac72..51a912222e85 100644
--- a/drivers/input/joystick/grip_mp.c
+++ b/drivers/input/joystick/grip_mp.c
@@ -19,6 +19,7 @@
 #include <linux/input.h>
 #include <linux/delay.h>
 #include <linux/proc_fs.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Gravis Grip Multiport driver"
 
diff --git a/drivers/input/joystick/guillemot.c b/drivers/input/joystick/guillemot.c
index c528473c09d8..6e2c721c26ba 100644
--- a/drivers/input/joystick/guillemot.c
+++ b/drivers/input/joystick/guillemot.c
@@ -35,6 +35,7 @@
 #include <linux/init.h>
 #include <linux/gameport.h>
 #include <linux/input.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Guillemot Digital joystick driver"
 
diff --git a/drivers/input/joystick/interact.c b/drivers/input/joystick/interact.c
index 8511ee7bb263..c4ed01758226 100644
--- a/drivers/input/joystick/interact.c
+++ b/drivers/input/joystick/interact.c
@@ -38,6 +38,7 @@
 #include <linux/init.h>
 #include <linux/gameport.h>
 #include <linux/input.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "InterAct digital joystick driver"
 
diff --git a/drivers/input/joystick/joydump.c b/drivers/input/joystick/joydump.c
index 4234ccaf9146..88ec5a918f2e 100644
--- a/drivers/input/joystick/joydump.c
+++ b/drivers/input/joystick/joydump.c
@@ -34,6 +34,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #define DRIVER_DESC     "Gameport data dumper module"
 
diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
index eaaad45cc750..78dd163cd702 100644
--- a/drivers/input/joystick/sidewinder.c
+++ b/drivers/input/joystick/sidewinder.c
@@ -33,6 +33,7 @@
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/gameport.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "Microsoft SideWinder joystick family driver"
 
diff --git a/drivers/input/joystick/tmdc.c b/drivers/input/joystick/tmdc.c
index 3a7d1bb46472..60e2aac7d06e 100644
--- a/drivers/input/joystick/tmdc.c
+++ b/drivers/input/joystick/tmdc.c
@@ -38,6 +38,7 @@
 #include <linux/init.h>
 #include <linux/gameport.h>
 #include <linux/input.h>
+#include <linux/jiffies.h>
 
 #define DRIVER_DESC     "ThrustMaster DirectConnect joystick driver"
 
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index bb934e6d9636..b3eaac1b35b6 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -14,7 +14,7 @@ if INPUT_MISC
 
 config INPUT_PCSPKR
         tristate "PC Speaker support"
-        depends on ALPHA || X86 || X86_64 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES
+        depends on ALPHA || X86 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES
         help
           Say Y here if you want the standard PC Speaker to be used for
           bells and whistles.
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
index e3c44ffae674..1c9426fd5205 100644
--- a/drivers/input/serio/hp_sdc_mlc.c
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -40,6 +40,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/string.h>
+#include <asm/semaphore.h>
 
 #define PREFIX "HP SDC MLC: "
 
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
index 3abd7fc6e5ef..7b564c0dd996 100644
--- a/drivers/isdn/capi/capifs.c
+++ b/drivers/isdn/capi/capifs.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/ctype.h>
+#include <linux/sched.h>        /* current */
 
 MODULE_DESCRIPTION("CAPI4Linux: /dev/capi/ filesystem");
 MODULE_AUTHOR("Carsten Paeth");
diff --git a/drivers/isdn/hisax/hfc4s8s_l1.c b/drivers/isdn/hisax/hfc4s8s_l1.c
index 7333377ab31d..e3866b0a97fd 100644
--- a/drivers/isdn/hisax/hfc4s8s_l1.c
+++ b/drivers/isdn/hisax/hfc4s8s_l1.c
@@ -1063,7 +1063,7 @@ tx_b_frame(struct hfc4s8s_btype *bch)
                                 Write_hfc8(l1->hw, A_INC_RES_FIFO, 1);
                         }
                         ack_len += skb->truesize;
-                        bch->tx_skb = 0;
+                        bch->tx_skb = NULL;
                         bch->tx_cnt = 0;
                         dev_kfree_skb(skb);
                 } else
@@ -1659,10 +1659,10 @@ hfc4s8s_remove(struct pci_dev *pdev)
 }
 
 static struct pci_driver hfc4s8s_driver = {
-      name:"hfc4s8s_l1",
-      probe:hfc4s8s_probe,
-      remove:__devexit_p(hfc4s8s_remove),
-      id_table:hfc4s8s_ids,
+      .name     = "hfc4s8s_l1",
+      .probe    = hfc4s8s_probe,
+      .remove   = __devexit_p(hfc4s8s_remove),
+      .id_table = hfc4s8s_ids,
 };
 
 /**********************/
diff --git a/drivers/macintosh/ans-lcd.c b/drivers/macintosh/ans-lcd.c
index 5e0811dc6536..2b8a6e821d44 100644
--- a/drivers/macintosh/ans-lcd.c
+++ b/drivers/macintosh/ans-lcd.c
@@ -27,7 +27,7 @@ static volatile unsigned char __iomem *anslcd_ptr;
 
 #undef DEBUG
 
-static void __pmac
+static void
 anslcd_write_byte_ctrl ( unsigned char c )
 {
 #ifdef DEBUG
@@ -43,14 +43,14 @@ anslcd_write_byte_ctrl ( unsigned char c )
         }
 }
 
-static void __pmac
+static void
 anslcd_write_byte_data ( unsigned char c )
 {
         out_8(anslcd_ptr + ANSLCD_DATA_IX, c);
         udelay(anslcd_short_delay);
 }
 
-static ssize_t __pmac
+static ssize_t
 anslcd_write( struct file * file, const char __user * buf, 
                                 size_t count, loff_t *ppos )
 {
@@ -73,7 +73,7 @@ anslcd_write( struct file * file, const char __user * buf,
         return p - buf;
 }
 
-static int __pmac
+static int
 anslcd_ioctl( struct inode * inode, struct file * file,
                                 unsigned int cmd, unsigned long arg )
 {
@@ -115,7 +115,7 @@ anslcd_ioctl( struct inode * inode, struct file * file,
         }
 }
 
-static int __pmac
+static int
 anslcd_open( struct inode * inode, struct file * file )
 {
         return 0;
diff --git a/drivers/macintosh/apm_emu.c b/drivers/macintosh/apm_emu.c
index 19d3e05d6825..e5a2bbf99399 100644
--- a/drivers/macintosh/apm_emu.c
+++ b/drivers/macintosh/apm_emu.c
@@ -430,8 +430,8 @@ static int apm_emu_get_info(char *buf, char **start, off_t fpos, int length)
               -1: Unknown
            8) min = minutes; sec = seconds */
 
-        unsigned short  ac_line_status = 0xff;
-        unsigned short  battery_status = 0xff;
+        unsigned short  ac_line_status;
+        unsigned short  battery_status = 0;
         unsigned short  battery_flag   = 0xff;
         int             percentage     = -1;
         int             time_units     = -1;
@@ -446,6 +446,7 @@ static int apm_emu_get_info(char *buf, char **start, off_t fpos, int length)
         ac_line_status = ((pmu_power_flags & PMU_PWR_AC_PRESENT) != 0);
         for (i=0; i<pmu_battery_count; i++) {
                 if (pmu_batteries[i].flags & PMU_BATT_PRESENT) {
+                        battery_status++;
                         if (percentage < 0)
                                 percentage = 0;
                         if (charge < 0)
@@ -461,6 +462,9 @@ static int apm_emu_get_info(char *buf, char **start, off_t fpos, int length)
                                 charging++;
                 }
         }
+        if (0 == battery_status)
+                ac_line_status = 1;
+        battery_status = 0xff;
         if (real_count) {
                 if (amperage < 0) {
                         if (btype == PMU_BATT_TYPE_SMART)
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 1ee003346923..c34c96d18907 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -17,6 +17,8 @@
 #include <linux/pci_ids.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
+
 #include <asm/machdep.h>
 #include <asm/macio.h>
 #include <asm/pmac_feature.h>
diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
index 97d22bb4516a..7f7d4eaca870 100644
--- a/drivers/macintosh/macio_sysfs.c
+++ b/drivers/macintosh/macio_sysfs.c
@@ -39,6 +39,31 @@ compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
         return length;
 }
 
+static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
+                              char *buf)
+{
+        struct of_device *of;
+        char *compat;
+        int cplen;
+        int length;
+
+        of = &to_macio_device (dev)->ofdev;
+        compat = (char *) get_property (of->node, "compatible", &cplen);
+        if (!compat) compat = "", cplen = 1;
+        length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type);
+        buf += length;
+        while (cplen > 0) {
+                int l;
+                length += sprintf (buf, "C%s", compat);
+                buf += length;
+                l = strlen (compat) + 1;
+                compat += l;
+                cplen -= l;
+        }
+
+        return length;
+}
+
 macio_config_of_attr (name, "%s\n");
 macio_config_of_attr (type, "%s\n");
 
@@ -46,5 +71,6 @@ struct device_attribute macio_dev_attrs[] = {
         __ATTR_RO(name),
         __ATTR_RO(type),
         __ATTR_RO(compatible),
+        __ATTR_RO(modalias),
         __ATTR_NULL
 };
diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index c0712a1ea5af..b856bb67169c 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -167,19 +167,19 @@ enum {
  * Functions for polling content of media bay
  */
  
-static u8 __pmac
+static u8
 ohare_mb_content(struct media_bay_info *bay)
 {
         return (MB_IN32(bay, OHARE_MBCR) >> 12) & 7;
 }
 
-static u8 __pmac
+static u8
 heathrow_mb_content(struct media_bay_info *bay)
 {
         return (MB_IN32(bay, HEATHROW_MBCR) >> 12) & 7;
 }
 
-static u8 __pmac
+static u8
 keylargo_mb_content(struct media_bay_info *bay)
 {
         int new_gpio;
@@ -205,7 +205,7 @@ keylargo_mb_content(struct media_bay_info *bay)
  * into reset state as well
  */
 
-static void __pmac
+static void
 ohare_mb_power(struct media_bay_info* bay, int on_off)
 {
         if (on_off) {
@@ -224,7 +224,7 @@ ohare_mb_power(struct media_bay_info* bay, int on_off)
         MB_BIC(bay, OHARE_MBCR, 0x00000F00);
 }
 
-static void __pmac
+static void
 heathrow_mb_power(struct media_bay_info* bay, int on_off)
 {
         if (on_off) {
@@ -243,7 +243,7 @@ heathrow_mb_power(struct media_bay_info* bay, int on_off)
         MB_BIC(bay, HEATHROW_MBCR, 0x00000F00);
 }
 
-static void __pmac
+static void
 keylargo_mb_power(struct media_bay_info* bay, int on_off)
 {
         if (on_off) {
@@ -267,7 +267,7 @@ keylargo_mb_power(struct media_bay_info* bay, int on_off)
  * enable the related busses
  */
 
-static int __pmac
+static int
 ohare_mb_setup_bus(struct media_bay_info* bay, u8 device_id)
 {
         switch(device_id) {
@@ -287,7 +287,7 @@ ohare_mb_setup_bus(struct media_bay_info* bay, u8 device_id)
         return -ENODEV;
 }
 
-static int __pmac
+static int
 heathrow_mb_setup_bus(struct media_bay_info* bay, u8 device_id)
 {
         switch(device_id) {
@@ -307,7 +307,7 @@ heathrow_mb_setup_bus(struct media_bay_info* bay, u8 device_id)
         return -ENODEV;
 }
 
-static int __pmac
+static int
 keylargo_mb_setup_bus(struct media_bay_info* bay, u8 device_id)
 {
         switch(device_id) {
@@ -330,43 +330,43 @@ keylargo_mb_setup_bus(struct media_bay_info* bay, u8 device_id)
  * Functions for tweaking resets
  */
 
-static void __pmac
+static void
 ohare_mb_un_reset(struct media_bay_info* bay)
 {
         MB_BIS(bay, OHARE_FCR, OH_BAY_RESET_N);
 }
 
-static void __pmac keylargo_mb_init(struct media_bay_info *bay)
+static void keylargo_mb_init(struct media_bay_info *bay)
 {
         MB_BIS(bay, KEYLARGO_MBCR, KL_MBCR_MB0_ENABLE);
 }
 
-static void __pmac heathrow_mb_un_reset(struct media_bay_info* bay)
+static void heathrow_mb_un_reset(struct media_bay_info* bay)
 {
         MB_BIS(bay, HEATHROW_FCR, HRW_BAY_RESET_N);
 }
 
-static void __pmac keylargo_mb_un_reset(struct media_bay_info* bay)
+static void keylargo_mb_un_reset(struct media_bay_info* bay)
 {
         MB_BIS(bay, KEYLARGO_MBCR, KL_MBCR_MB0_DEV_RESET);
 }
 
-static void __pmac ohare_mb_un_reset_ide(struct media_bay_info* bay)
+static void ohare_mb_un_reset_ide(struct media_bay_info* bay)
 {
         MB_BIS(bay, OHARE_FCR, OH_IDE1_RESET_N);
 }
 
-static void __pmac heathrow_mb_un_reset_ide(struct media_bay_info* bay)
+static void heathrow_mb_un_reset_ide(struct media_bay_info* bay)
 {
         MB_BIS(bay, HEATHROW_FCR, HRW_IDE1_RESET_N);
 }
 
-static void __pmac keylargo_mb_un_reset_ide(struct media_bay_info* bay)
+static void keylargo_mb_un_reset_ide(struct media_bay_info* bay)
 {
         MB_BIS(bay, KEYLARGO_FCR1, KL1_EIDE0_RESET_N);
 }
 
-static inline void __pmac set_mb_power(struct media_bay_info* bay, int onoff)
+static inline void set_mb_power(struct media_bay_info* bay, int onoff)
 {
         /* Power up up and assert the bay reset line */
         if (onoff) {
@@ -382,7 +382,7 @@ static inline void __pmac set_mb_power(struct media_bay_info* bay, int onoff)
         bay->timer = msecs_to_jiffies(MB_POWER_DELAY);
 }
 
-static void __pmac poll_media_bay(struct media_bay_info* bay)
+static void poll_media_bay(struct media_bay_info* bay)
 {
         int id = bay->ops->content(bay);
 
@@ -415,7 +415,7 @@ static void __pmac poll_media_bay(struct media_bay_info* bay)
         }
 }
 
-int __pmac check_media_bay(struct device_node *which_bay, int what)
+int check_media_bay(struct device_node *which_bay, int what)
 {
 #ifdef CONFIG_BLK_DEV_IDE
         int     i;
@@ -432,7 +432,7 @@ int __pmac check_media_bay(struct device_node *which_bay, int what)
 }
 EXPORT_SYMBOL(check_media_bay);
 
-int __pmac check_media_bay_by_base(unsigned long base, int what)
+int check_media_bay_by_base(unsigned long base, int what)
 {
 #ifdef CONFIG_BLK_DEV_IDE
         int     i;
@@ -449,7 +449,7 @@ int __pmac check_media_bay_by_base(unsigned long base, int what)
         return -ENODEV;
 }
 
-int __pmac media_bay_set_ide_infos(struct device_node* which_bay, unsigned long base,
+int media_bay_set_ide_infos(struct device_node* which_bay, unsigned long base,
         int irq, int index)
 {
 #ifdef CONFIG_BLK_DEV_IDE
@@ -489,7 +489,7 @@ int __pmac media_bay_set_ide_infos(struct device_node* which_bay, unsigned long
         return -ENODEV;
 }
 
-static void __pmac media_bay_step(int i)
+static void media_bay_step(int i)
 {
         struct media_bay_info* bay = &media_bays[i];
 
@@ -619,7 +619,7 @@ static void __pmac media_bay_step(int i)
  * with the IDE driver.  It needs to be a thread because
  * ide_register can't be called from interrupt context.
  */
-static int __pmac media_bay_task(void *x)
+static int media_bay_task(void *x)
 {
         int     i;
 
@@ -704,7 +704,7 @@ static int __devinit media_bay_attach(struct macio_dev *mdev, const struct of_de
 
 }
 
-static int __pmac media_bay_suspend(struct macio_dev *mdev, pm_message_t state)
+static int media_bay_suspend(struct macio_dev *mdev, pm_message_t state)
 {
         struct media_bay_info   *bay = macio_get_drvdata(mdev);
 
@@ -719,7 +719,7 @@ static int __pmac media_bay_suspend(struct macio_dev *mdev, pm_message_t state)
         return 0;
 }
 
-static int __pmac media_bay_resume(struct macio_dev *mdev)
+static int media_bay_resume(struct macio_dev *mdev)
 {
         struct media_bay_info   *bay = macio_get_drvdata(mdev);
 
@@ -760,7 +760,7 @@ static int __pmac media_bay_resume(struct macio_dev *mdev)
 
 /* Definitions of "ops" structures.
  */
-static struct mb_ops ohare_mb_ops __pmacdata = {
+static struct mb_ops ohare_mb_ops = {
         .name           = "Ohare",
         .content        = ohare_mb_content,
         .power          = ohare_mb_power,
@@ -769,7 +769,7 @@ static struct mb_ops ohare_mb_ops __pmacdata = {
         .un_reset_ide   = ohare_mb_un_reset_ide,
 };
 
-static struct mb_ops heathrow_mb_ops __pmacdata = {
+static struct mb_ops heathrow_mb_ops = {
         .name           = "Heathrow",
         .content        = heathrow_mb_content,
         .power          = heathrow_mb_power,
@@ -778,7 +778,7 @@ static struct mb_ops heathrow_mb_ops __pmacdata = {
         .un_reset_ide   = heathrow_mb_un_reset_ide,
 };
 
-static struct mb_ops keylargo_mb_ops __pmacdata = {
+static struct mb_ops keylargo_mb_ops = {
         .name           = "KeyLargo",
         .init           = keylargo_mb_init,
         .content        = keylargo_mb_content,
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 9b38674fbf75..34f3c7e2d832 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -1094,7 +1094,7 @@ static int smu_release(struct inode *inode, struct file *file)
 }
 
 
-static struct file_operations smu_device_fops __pmacdata = {
+static struct file_operations smu_device_fops = {
         .llseek         = no_llseek,
         .read           = smu_read,
         .write          = smu_write,
@@ -1103,7 +1103,7 @@ static struct file_operations smu_device_fops __pmacdata = {
         .release        = smu_release,
 };
 
-static struct miscdevice pmu_device __pmacdata = {
+static struct miscdevice pmu_device = {
         MISC_DYNAMIC_MINOR, "smu", &smu_device_fops
 };
 
diff --git a/drivers/macintosh/via-cuda.c b/drivers/macintosh/via-cuda.c
index 417deb5de108..d843a6c9c6df 100644
--- a/drivers/macintosh/via-cuda.c
+++ b/drivers/macintosh/via-cuda.c
@@ -37,7 +37,6 @@ static DEFINE_SPINLOCK(cuda_lock);
 
 #ifdef CONFIG_MAC
 #define CUDA_IRQ IRQ_MAC_ADB
-#define __openfirmware
 #define eieio()
 #else
 #define CUDA_IRQ vias->intrs[0].line
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 645a2e5c70ab..91920a1140fa 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -244,7 +244,7 @@ int pmu_wink(struct adb_request *req);
  * - the number of response bytes which the PMU will return, or
  *   -1 if it will send a length byte.
  */
-static const s8 pmu_data_len[256][2] __openfirmwaredata = {
+static const s8 pmu_data_len[256][2] = {
 /*         0       1       2       3       4       5       6       7  */
 /*00*/  {-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},{-1, 0},
 /*08*/  {-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},{-1,-1},
@@ -295,7 +295,7 @@ static struct backlight_controller pmu_backlight_controller = {
 };
 #endif /* CONFIG_PMAC_BACKLIGHT */
 
-int __openfirmware
+int
 find_via_pmu(void)
 {
         if (via != 0)
@@ -374,7 +374,7 @@ find_via_pmu(void)
 }
 
 #ifdef CONFIG_ADB
-static int __openfirmware
+static int
 pmu_probe(void)
 {
         return vias == NULL? -ENODEV: 0;
@@ -405,7 +405,7 @@ static int __init via_pmu_start(void)
         bright_req_2.complete = 1;
         batt_req.complete = 1;
 
-#ifdef CONFIG_PPC32
+#if defined(CONFIG_PPC32) && !defined(CONFIG_PPC_MERGE)
         if (pmu_kind == PMU_KEYLARGO_BASED)
                 openpic_set_irq_priority(vias->intrs[0].line,
                                          OPENPIC_PRIORITY_DEFAULT + 1);
@@ -520,7 +520,7 @@ static int __init via_pmu_dev_init(void)
 
 device_initcall(via_pmu_dev_init);
 
-static int __openfirmware
+static int
 init_pmu(void)
 {
         int timeout;
@@ -588,17 +588,6 @@ pmu_get_model(void)
         return pmu_kind;
 }
 
-#ifndef CONFIG_PPC64
-static inline void wakeup_decrementer(void)
-{
-        set_dec(tb_ticks_per_jiffy);
-        /* No currently-supported powerbook has a 601,
-         * so use get_tbl, not native
-         */
-        last_jiffy_stamp(0) = tb_last_stamp = get_tbl();
-}
-#endif
-
 static void pmu_set_server_mode(int server_mode)
 {
         struct adb_request req;
@@ -625,7 +614,7 @@ static void pmu_set_server_mode(int server_mode)
 /* This new version of the code for 2400/3400/3500 powerbooks
  * is inspired from the implementation in gkrellm-pmu
  */
-static void __pmac
+static void
 done_battery_state_ohare(struct adb_request* req)
 {
         /* format:
@@ -713,7 +702,7 @@ done_battery_state_ohare(struct adb_request* req)
         clear_bit(0, &async_req_locks);
 }
 
-static void __pmac
+static void
 done_battery_state_smart(struct adb_request* req)
 {
         /* format:
@@ -791,7 +780,7 @@ done_battery_state_smart(struct adb_request* req)
         clear_bit(0, &async_req_locks);
 }
 
-static void __pmac
+static void
 query_battery_state(void)
 {
         if (test_and_set_bit(0, &async_req_locks))
@@ -804,7 +793,7 @@ query_battery_state(void)
                         2, PMU_SMART_BATTERY_STATE, pmu_cur_battery+1);
 }
 
-static int __pmac
+static int
 proc_get_info(char *page, char **start, off_t off,
                 int count, int *eof, void *data)
 {
@@ -819,7 +808,7 @@ proc_get_info(char *page, char **start, off_t off,
         return p - page;
 }
 
-static int __pmac
+static int
 proc_get_irqstats(char *page, char **start, off_t off,
                   int count, int *eof, void *data)
 {
@@ -846,7 +835,7 @@ proc_get_irqstats(char *page, char **start, off_t off,
         return p - page;
 }
 
-static int __pmac
+static int
 proc_get_batt(char *page, char **start, off_t off,
                 int count, int *eof, void *data)
 {
@@ -870,7 +859,7 @@ proc_get_batt(char *page, char **start, off_t off,
         return p - page;
 }
 
-static int __pmac
+static int
 proc_read_options(char *page, char **start, off_t off,
                         int count, int *eof, void *data)
 {
@@ -887,7 +876,7 @@ proc_read_options(char *page, char **start, off_t off,
         return p - page;
 }
                         
-static int __pmac
+static int
 proc_write_options(struct file *file, const char __user *buffer,
                         unsigned long count, void *data)
 {
@@ -934,7 +923,7 @@ proc_write_options(struct file *file, const char __user *buffer,
 
 #ifdef CONFIG_ADB
 /* Send an ADB command */
-static int __pmac
+static int
 pmu_send_request(struct adb_request *req, int sync)
 {
         int i, ret;
@@ -1014,7 +1003,7 @@ pmu_send_request(struct adb_request *req, int sync)
 }
 
 /* Enable/disable autopolling */
-static int __pmac
+static int
 pmu_adb_autopoll(int devs)
 {
         struct adb_request req;
@@ -1037,7 +1026,7 @@ pmu_adb_autopoll(int devs)
 }
 
 /* Reset the ADB bus */
-static int __pmac
+static int
 pmu_adb_reset_bus(void)
 {
         struct adb_request req;
@@ -1072,7 +1061,7 @@ pmu_adb_reset_bus(void)
 #endif /* CONFIG_ADB */
 
 /* Construct and send a pmu request */
-int __openfirmware
+int
 pmu_request(struct adb_request *req, void (*done)(struct adb_request *),
             int nbytes, ...)
 {
@@ -1098,7 +1087,7 @@ pmu_request(struct adb_request *req, void (*done)(struct adb_request *),
         return pmu_queue_request(req);
 }
 
-int __pmac
+int
 pmu_queue_request(struct adb_request *req)
 {
         unsigned long flags;
@@ -1190,7 +1179,7 @@ pmu_done(struct adb_request *req)
                 (*done)(req);
 }
 
-static void __pmac
+static void
 pmu_start(void)
 {
         struct adb_request *req;
@@ -1214,7 +1203,7 @@ pmu_start(void)
         send_byte(req->data[0]);
 }
 
-void __openfirmware
+void
 pmu_poll(void)
 {
         if (!via)
@@ -1224,7 +1213,7 @@ pmu_poll(void)
         via_pmu_interrupt(0, NULL, NULL);
 }
 
-void __openfirmware
+void
 pmu_poll_adb(void)
 {
         if (!via)
@@ -1239,7 +1228,7 @@ pmu_poll_adb(void)
                 || req_awaiting_reply));
 }
 
-void __openfirmware
+void
 pmu_wait_complete(struct adb_request *req)
 {
         if (!via)
@@ -1253,7 +1242,7 @@ pmu_wait_complete(struct adb_request *req)
  * This is done to avoid spurrious shutdowns when we know we'll have
  * interrupts switched off for a long time
  */
-void __openfirmware
+void
 pmu_suspend(void)
 {
         unsigned long flags;
@@ -1293,7 +1282,7 @@ pmu_suspend(void)
         } while (1);
 }
 
-void __openfirmware
+void
 pmu_resume(void)
 {
         unsigned long flags;
@@ -1323,7 +1312,7 @@ pmu_resume(void)
 }
 
 /* Interrupt data could be the result data from an ADB cmd */
-static void __pmac
+static void
 pmu_handle_data(unsigned char *data, int len, struct pt_regs *regs)
 {
         unsigned char ints, pirq;
@@ -1435,7 +1424,7 @@ next:
         goto next;
 }
 
-static struct adb_request* __pmac
+static struct adb_request*
 pmu_sr_intr(struct pt_regs *regs)
 {
         struct adb_request *req;
@@ -1541,7 +1530,7 @@ pmu_sr_intr(struct pt_regs *regs)
         return NULL;
 }
 
-static irqreturn_t __pmac
+static irqreturn_t
 via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs)
 {
         unsigned long flags;
@@ -1629,7 +1618,7 @@ no_free_slot:
         return IRQ_RETVAL(handled);
 }
 
-void __pmac
+void
 pmu_unlock(void)
 {
         unsigned long flags;
@@ -1642,7 +1631,7 @@ pmu_unlock(void)
 }
 
 
-static irqreturn_t __pmac
+static irqreturn_t
 gpio1_interrupt(int irq, void *arg, struct pt_regs *regs)
 {
         unsigned long flags;
@@ -1663,12 +1652,12 @@ gpio1_interrupt(int irq, void *arg, struct pt_regs *regs)
 }
 
 #ifdef CONFIG_PMAC_BACKLIGHT
-static int backlight_to_bright[] __pmacdata = {
+static int backlight_to_bright[] = {
         0x7f, 0x46, 0x42, 0x3e, 0x3a, 0x36, 0x32, 0x2e,
         0x2a, 0x26, 0x22, 0x1e, 0x1a, 0x16, 0x12, 0x0e
 };
  
-static int __openfirmware
+static int
 pmu_set_backlight_enable(int on, int level, void* data)
 {
         struct adb_request req;
@@ -1688,7 +1677,7 @@ pmu_set_backlight_enable(int on, int level, void* data)
         return 0;
 }
 
-static void __openfirmware
+static void
 pmu_bright_complete(struct adb_request *req)
 {
         if (req == &bright_req_1)
@@ -1697,7 +1686,7 @@ pmu_bright_complete(struct adb_request *req)
                 clear_bit(2, &async_req_locks);
 }
 
-static int __openfirmware
+static int
 pmu_set_backlight_level(int level, void* data)
 {
         if (vias == NULL)
@@ -1717,7 +1706,7 @@ pmu_set_backlight_level(int level, void* data)
 }
 #endif /* CONFIG_PMAC_BACKLIGHT */
 
-void __pmac
+void
 pmu_enable_irled(int on)
 {
         struct adb_request req;
@@ -1732,7 +1721,7 @@ pmu_enable_irled(int on)
         pmu_wait_complete(&req);
 }
 
-void __pmac
+void
 pmu_restart(void)
 {
         struct adb_request req;
@@ -1757,7 +1746,7 @@ pmu_restart(void)
                 ;
 }
 
-void __pmac
+void
 pmu_shutdown(void)
 {
         struct adb_request req;
@@ -2076,7 +2065,7 @@ pmu_unregister_sleep_notifier(struct pmu_sleep_notifier* n)
 }
 
 /* Sleep is broadcast last-to-first */
-static int __pmac
+static int
 broadcast_sleep(int when, int fallback)
 {
         int ret = PBOOK_SLEEP_OK;
@@ -2101,7 +2090,7 @@ broadcast_sleep(int when, int fallback)
 }
 
 /* Wake is broadcast first-to-last */
-static int __pmac
+static int
 broadcast_wake(void)
 {
         int ret = PBOOK_SLEEP_OK;
@@ -2132,7 +2121,7 @@ static struct pci_save {
 } *pbook_pci_saves;
 static int pbook_npci_saves;
 
-static void __pmac
+static void
 pbook_alloc_pci_save(void)
 {
         int npci;
@@ -2149,7 +2138,7 @@ pbook_alloc_pci_save(void)
         pbook_npci_saves = npci;
 }
 
-static void __pmac
+static void
 pbook_free_pci_save(void)
 {
         if (pbook_pci_saves == NULL)
@@ -2159,7 +2148,7 @@ pbook_free_pci_save(void)
         pbook_npci_saves = 0;
 }
 
-static void __pmac
+static void
 pbook_pci_save(void)
 {
         struct pci_save *ps = pbook_pci_saves;
@@ -2190,7 +2179,7 @@ pbook_pci_save(void)
  * during boot, it will be in the pci dev list. If it's disabled at this point
  * (and it will probably be), then you can't access it's config space.
  */
-static void __pmac
+static void
 pbook_pci_restore(void)
 {
         u16 cmd;
@@ -2238,7 +2227,7 @@ pbook_pci_restore(void)
 
 #ifdef DEBUG_SLEEP
 /* N.B. This doesn't work on the 3400 */
-void  __pmac
+void 
 pmu_blink(int n)
 {
         struct adb_request req;
@@ -2277,9 +2266,9 @@ pmu_blink(int n)
  * Put the powerbook to sleep.
  */
  
-static u32 save_via[8] __pmacdata;
+static u32 save_via[8];
 
-static void __pmac
+static void
 save_via_state(void)
 {
         save_via[0] = in_8(&via[ANH]);
@@ -2291,7 +2280,7 @@ save_via_state(void)
         save_via[6] = in_8(&via[T1CL]);
         save_via[7] = in_8(&via[T1CH]);
 }
-static void __pmac
+static void
 restore_via_state(void)
 {
         out_8(&via[ANH], save_via[0]);
@@ -2307,7 +2296,7 @@ restore_via_state(void)
         out_8(&via[IER], IER_SET | SR_INT | CB1_INT);
 }
 
-static int __pmac
+static int
 pmac_suspend_devices(void)
 {
         int ret;
@@ -2397,7 +2386,7 @@ pmac_suspend_devices(void)
         return 0;
 }
 
-static int __pmac
+static int
 pmac_wakeup_devices(void)
 {
         mdelay(100);
@@ -2436,7 +2425,7 @@ pmac_wakeup_devices(void)
 #define GRACKLE_NAP     (1<<4)
 #define GRACKLE_SLEEP   (1<<3)
 
-int __pmac
+int
 powerbook_sleep_grackle(void)
 {
         unsigned long save_l2cr;
@@ -2520,7 +2509,7 @@ powerbook_sleep_grackle(void)
         return 0;
 }
 
-static int __pmac
+static int
 powerbook_sleep_Core99(void)
 {
         unsigned long save_l2cr;
@@ -2620,7 +2609,7 @@ powerbook_sleep_Core99(void)
 #define PB3400_MEM_CTRL         0xf8000000
 #define PB3400_MEM_CTRL_SLEEP   0x70
 
-static int __pmac
+static int
 powerbook_sleep_3400(void)
 {
         int ret, i, x;
@@ -2720,9 +2709,9 @@ struct pmu_private {
 };
 
 static LIST_HEAD(all_pmu_pvt);
-static DEFINE_SPINLOCK(all_pvt_lock __pmacdata);
+static DEFINE_SPINLOCK(all_pvt_lock);
 
-static void __pmac
+static void
 pmu_pass_intr(unsigned char *data, int len)
 {
         struct pmu_private *pp;
@@ -2751,7 +2740,7 @@ pmu_pass_intr(unsigned char *data, int len)
         spin_unlock_irqrestore(&all_pvt_lock, flags);
 }
 
-static int __pmac
+static int
 pmu_open(struct inode *inode, struct file *file)
 {
         struct pmu_private *pp;
@@ -2773,7 +2762,7 @@ pmu_open(struct inode *inode, struct file *file)
         return 0;
 }
 
-static ssize_t  __pmac
+static ssize_t 
 pmu_read(struct file *file, char __user *buf,
                         size_t count, loff_t *ppos)
 {
@@ -2825,14 +2814,14 @@ pmu_read(struct file *file, char __user *buf,
         return ret;
 }
 
-static ssize_t __pmac
+static ssize_t
 pmu_write(struct file *file, const char __user *buf,
                          size_t count, loff_t *ppos)
 {
         return 0;
 }
 
-static unsigned int __pmac
+static unsigned int
 pmu_fpoll(struct file *filp, poll_table *wait)
 {
         struct pmu_private *pp = filp->private_data;
@@ -2849,7 +2838,7 @@ pmu_fpoll(struct file *filp, poll_table *wait)
         return mask;
 }
 
-static int __pmac
+static int
 pmu_release(struct inode *inode, struct file *file)
 {
         struct pmu_private *pp = file->private_data;
@@ -2874,8 +2863,7 @@ pmu_release(struct inode *inode, struct file *file)
         return 0;
 }
 
-/* Note: removed __openfirmware here since it causes link errors */
-static int __pmac
+static int
 pmu_ioctl(struct inode * inode, struct file *filp,
                      u_int cmd, u_long arg)
 {
@@ -2957,7 +2945,7 @@ pmu_ioctl(struct inode * inode, struct file *filp,
         return error;
 }
 
-static struct file_operations pmu_device_fops __pmacdata = {
+static struct file_operations pmu_device_fops = {
         .read           = pmu_read,
         .write          = pmu_write,
         .poll           = pmu_fpoll,
@@ -2966,7 +2954,7 @@ static struct file_operations pmu_device_fops __pmacdata = {
         .release        = pmu_release,
 };
 
-static struct miscdevice pmu_device __pmacdata = {
+static struct miscdevice pmu_device = {
         PMU_MINOR, "pmu", &pmu_device_fops
 };
 
@@ -2982,7 +2970,7 @@ device_initcall(pmu_device_init);
 
 
 #ifdef DEBUG_SLEEP
-static inline void  __pmac
+static inline void 
 polled_handshake(volatile unsigned char __iomem *via)
 {
         via[B] &= ~TREQ; eieio();
@@ -2993,7 +2981,7 @@ polled_handshake(volatile unsigned char __iomem *via)
                 ;
 }
 
-static inline void  __pmac
+static inline void 
 polled_send_byte(volatile unsigned char __iomem *via, int x)
 {
         via[ACR] |= SR_OUT | SR_EXT; eieio();
@@ -3001,7 +2989,7 @@ polled_send_byte(volatile unsigned char __iomem *via, int x)
         polled_handshake(via);
 }
 
-static inline int __pmac
+static inline int
 polled_recv_byte(volatile unsigned char __iomem *via)
 {
         int x;
@@ -3013,7 +3001,7 @@ polled_recv_byte(volatile unsigned char __iomem *via)
         return x;
 }
 
-int __pmac
+int
 pmu_polled_request(struct adb_request *req)
 {
         unsigned long flags;
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index 820dc52e30bc..6f80d76ac17c 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -835,7 +835,7 @@ static struct pci_save {
 } *pbook_pci_saves;
 static int n_pbook_pci_saves;
 
-static inline void __openfirmware
+static inline void
 pbook_pci_save(void)
 {
         int npci;
@@ -863,7 +863,7 @@ pbook_pci_save(void)
         }
 }
 
-static inline void __openfirmware
+static inline void
 pbook_pci_restore(void)
 {
         u16 cmd;
@@ -902,7 +902,7 @@ pbook_pci_restore(void)
 #define IRQ_ENABLE      ((unsigned int *)0xf3000024)
 #define MEM_CTRL        ((unsigned int *)0xf8000070)
 
-int __openfirmware powerbook_sleep(void)
+int powerbook_sleep(void)
 {
         int ret, i, x;
         static int save_backlight;
@@ -1001,25 +1001,24 @@ int __openfirmware powerbook_sleep(void)
 /*
  * Support for /dev/pmu device
  */
-static int __openfirmware pmu_open(struct inode *inode, struct file *file)
+static int pmu_open(struct inode *inode, struct file *file)
 {
         return 0;
 }
 
-static ssize_t __openfirmware pmu_read(struct file *file, char *buf,
+static ssize_t pmu_read(struct file *file, char *buf,
                         size_t count, loff_t *ppos)
 {
         return 0;
 }
 
-static ssize_t __openfirmware pmu_write(struct file *file, const char *buf,
+static ssize_t pmu_write(struct file *file, const char *buf,
                          size_t count, loff_t *ppos)
 {
         return 0;
 }
 
-/* Note: removed __openfirmware here since it causes link errors */
-static int /*__openfirmware*/ pmu_ioctl(struct inode * inode, struct file *filp,
+static int pmu_ioctl(struct inode * inode, struct file *filp,
                      u_int cmd, u_long arg)
 {
         int error;
diff --git a/drivers/mca/mca-device.c b/drivers/mca/mca-device.c
index 76d430aa243f..e7adf89fae41 100644
--- a/drivers/mca/mca-device.c
+++ b/drivers/mca/mca-device.c
@@ -29,6 +29,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/mca.h>
+#include <linux/string.h>
 
 /**
  *      mca_device_read_stored_pos - read POS register from stored data
diff --git a/drivers/media/common/ir-common.c b/drivers/media/common/ir-common.c
index 06f4d4686a6c..31fccb4f05d6 100644
--- a/drivers/media/common/ir-common.c
+++ b/drivers/media/common/ir-common.c
@@ -22,6 +22,7 @@
 
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/string.h>
 #include <media/ir-common.h>
 
 /* -------------------------------------------------------------------------- */
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index 88757e2634e5..2aa767f9bd7d 100644
--- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -36,6 +36,7 @@
 #include <linux/vmalloc.h>
 #include <linux/delay.h>
 #include <linux/rwsem.h>
+#include <linux/sched.h>
 
 #include "dvb_ca_en50221.h"
 #include "dvb_ringbuffer.h"
diff --git a/drivers/media/dvb/dvb-usb/dtt200u.c b/drivers/media/dvb/dvb-usb/dtt200u.c
index 5aa12ebab34f..b595476332cd 100644
--- a/drivers/media/dvb/dvb-usb/dtt200u.c
+++ b/drivers/media/dvb/dvb-usb/dtt200u.c
@@ -151,7 +151,7 @@ static struct dvb_usb_properties dtt200u_properties = {
                   .cold_ids = { &dtt200u_usb_table[0], NULL },
                   .warm_ids = { &dtt200u_usb_table[1], NULL },
                 },
-                { 0 },
+                { NULL },
         }
 };
 
@@ -192,7 +192,7 @@ static struct dvb_usb_properties wt220u_properties = {
                   .cold_ids = { &dtt200u_usb_table[2], NULL },
                   .warm_ids = { &dtt200u_usb_table[3], NULL },
                 },
-                { 0 },
+                { NULL },
         }
 };
 
diff --git a/drivers/media/dvb/dvb-usb/vp7045.c b/drivers/media/dvb/dvb-usb/vp7045.c
index 0f57abeb6d6b..75765e3a569c 100644
--- a/drivers/media/dvb/dvb-usb/vp7045.c
+++ b/drivers/media/dvb/dvb-usb/vp7045.c
@@ -247,7 +247,7 @@ static struct dvb_usb_properties vp7045_properties = {
                   .cold_ids = { &vp7045_usb_table[2], NULL },
                   .warm_ids = { &vp7045_usb_table[3], NULL },
                 },
-                { 0 },
+                { NULL },
         }
 };
 
diff --git a/drivers/media/dvb/frontends/bcm3510.c b/drivers/media/dvb/frontends/bcm3510.c
index f5fdc5c3e605..f6d4ee78bdd4 100644
--- a/drivers/media/dvb/frontends/bcm3510.c
+++ b/drivers/media/dvb/frontends/bcm3510.c
@@ -36,6 +36,9 @@
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
+#include <linux/jiffies.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "bcm3510.h"
diff --git a/drivers/media/dvb/frontends/dib3000mb.c b/drivers/media/dvb/frontends/dib3000mb.c
index 21433e1831e7..6b0553608610 100644
--- a/drivers/media/dvb/frontends/dib3000mb.c
+++ b/drivers/media/dvb/frontends/dib3000mb.c
@@ -27,6 +27,8 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dib3000-common.h"
 #include "dib3000mb_priv.h"
diff --git a/drivers/media/dvb/frontends/dib3000mc.c b/drivers/media/dvb/frontends/dib3000mc.c
index 441de665fec3..c024fad17337 100644
--- a/drivers/media/dvb/frontends/dib3000mc.c
+++ b/drivers/media/dvb/frontends/dib3000mc.c
@@ -26,6 +26,8 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dib3000-common.h"
 #include "dib3000mc_priv.h"
diff --git a/drivers/media/dvb/frontends/dvb_dummy_fe.c b/drivers/media/dvb/frontends/dvb_dummy_fe.c
index cff93b9d8ab2..794be520d590 100644
--- a/drivers/media/dvb/frontends/dvb_dummy_fe.c
+++ b/drivers/media/dvb/frontends/dvb_dummy_fe.c
@@ -22,6 +22,8 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "dvb_dummy_fe.h"
diff --git a/drivers/media/dvb/frontends/lgdt330x.c b/drivers/media/dvb/frontends/lgdt330x.c
index 7142b9c51dd2..8dde72bd1046 100644
--- a/drivers/media/dvb/frontends/lgdt330x.c
+++ b/drivers/media/dvb/frontends/lgdt330x.c
@@ -37,6 +37,8 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <asm/byteorder.h>
 
 #include "dvb_frontend.h"
diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c
index e455aecd76b2..e38454901dd1 100644
--- a/drivers/media/dvb/frontends/mt312.c
+++ b/drivers/media/dvb/frontends/mt312.c
@@ -29,6 +29,8 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "mt312_priv.h"
diff --git a/drivers/media/dvb/frontends/mt352.c b/drivers/media/dvb/frontends/mt352.c
index cc1bc0edd65e..f0c610f2c2df 100644
--- a/drivers/media/dvb/frontends/mt352.c
+++ b/drivers/media/dvb/frontends/mt352.c
@@ -35,6 +35,8 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "mt352_priv.h"
diff --git a/drivers/media/dvb/frontends/nxt2002.c b/drivers/media/dvb/frontends/nxt2002.c
index 35a1d60f1927..30786b1911bd 100644
--- a/drivers/media/dvb/frontends/nxt2002.c
+++ b/drivers/media/dvb/frontends/nxt2002.c
@@ -32,6 +32,8 @@
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "nxt2002.h"
diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c
index b6d0eecc59eb..817b044c7fd1 100644
--- a/drivers/media/dvb/frontends/or51132.c
+++ b/drivers/media/dvb/frontends/or51132.c
@@ -36,6 +36,8 @@
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <asm/byteorder.h>
 
 #include "dvb_frontend.h"
diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c
index ad56a9958404..8a9db23dd1b7 100644
--- a/drivers/media/dvb/frontends/or51211.c
+++ b/drivers/media/dvb/frontends/or51211.c
@@ -34,6 +34,8 @@
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <asm/byteorder.h>
 
 #include "dvb_frontend.h"
diff --git a/drivers/media/dvb/frontends/s5h1420.c b/drivers/media/dvb/frontends/s5h1420.c
index c7fe27fd530c..f265418e3261 100644
--- a/drivers/media/dvb/frontends/s5h1420.c
+++ b/drivers/media/dvb/frontends/s5h1420.c
@@ -26,6 +26,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <asm/div64.h>
 
 #include "dvb_frontend.h"
 #include "s5h1420.h"
diff --git a/drivers/media/dvb/frontends/sp8870.c b/drivers/media/dvb/frontends/sp8870.c
index 764a95a2e212..1c6b2e9264bc 100644
--- a/drivers/media/dvb/frontends/sp8870.c
+++ b/drivers/media/dvb/frontends/sp8870.c
@@ -32,6 +32,8 @@
 #include <linux/device.h>
 #include <linux/firmware.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "sp8870.h"
diff --git a/drivers/media/dvb/frontends/sp887x.c b/drivers/media/dvb/frontends/sp887x.c
index d868a6927a16..73384e75625e 100644
--- a/drivers/media/dvb/frontends/sp887x.c
+++ b/drivers/media/dvb/frontends/sp887x.c
@@ -14,6 +14,8 @@
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "sp887x.h"
diff --git a/drivers/media/dvb/frontends/stv0297.c b/drivers/media/dvb/frontends/stv0297.c
index 8d09afd7545d..6122ba754bc5 100644
--- a/drivers/media/dvb/frontends/stv0297.c
+++ b/drivers/media/dvb/frontends/stv0297.c
@@ -24,6 +24,8 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/slab.h>
 
 #include "dvb_frontend.h"
 #include "stv0297.h"
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c
index 2d62931f20b5..889d9257215d 100644
--- a/drivers/media/dvb/frontends/stv0299.c
+++ b/drivers/media/dvb/frontends/stv0299.c
@@ -48,6 +48,7 @@
 #include <linux/moduleparam.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/jiffies.h>
 #include <asm/div64.h>
 
 #include "dvb_frontend.h"
diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c
index 74cea9f8d721..3529c618f828 100644
--- a/drivers/media/dvb/frontends/tda1004x.c
+++ b/drivers/media/dvb/frontends/tda1004x.c
@@ -32,6 +32,10 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/device.h>
+#include <linux/jiffies.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include "dvb_frontend.h"
 #include "tda1004x.h"
 
diff --git a/drivers/media/dvb/frontends/tda8083.c b/drivers/media/dvb/frontends/tda8083.c
index 168e013d23bd..c05cf1861051 100644
--- a/drivers/media/dvb/frontends/tda8083.c
+++ b/drivers/media/dvb/frontends/tda8083.c
@@ -30,6 +30,7 @@
 #include <linux/moduleparam.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/jiffies.h>
 #include "dvb_frontend.h"
 #include "tda8083.h"
 
diff --git a/drivers/media/radio/miropcm20-rds.c b/drivers/media/radio/miropcm20-rds.c
index df79d5e0aaed..e09214082e01 100644
--- a/drivers/media/radio/miropcm20-rds.c
+++ b/drivers/media/radio/miropcm20-rds.c
@@ -14,6 +14,7 @@
 #include <linux/slab.h>
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
+#include <linux/sched.h>        /* current, TASK_*, schedule_timeout() */
 #include <linux/delay.h>
 #include <asm/uaccess.h>
 #include "miropcm20-rds-core.h"
diff --git a/drivers/message/i2o/debug.c b/drivers/message/i2o/debug.c
index 018ca887ca85..40d4ea898dbc 100644
--- a/drivers/message/i2o/debug.c
+++ b/drivers/message/i2o/debug.c
@@ -90,7 +90,7 @@ static void i2o_report_fail_status(u8 req_status, u32 * msg)
         };
 
         if (req_status == I2O_FSC_TRANSPORT_UNKNOWN_FAILURE)
-                printk(KERN_DEBUG "TRANSPORT_UNKNOWN_FAILURE (%0#2x)\n.",
+                printk(KERN_DEBUG "TRANSPORT_UNKNOWN_FAILURE (%0#2x).\n",
                        req_status);
         else
                 printk(KERN_DEBUG "TRANSPORT_%s.\n",
diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c
index d9879965eb50..8eb50cdb8ae1 100644
--- a/drivers/message/i2o/device.c
+++ b/drivers/message/i2o/device.c
@@ -16,6 +16,8 @@
 #include <linux/module.h>
 #include <linux/i2o.h>
 #include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include "core.h"
 
 /**
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index 0079a4be0af2..0fb9c4e2ad4c 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -17,6 +17,9 @@
 #include <linux/module.h>
 #include <linux/rwsem.h>
 #include <linux/i2o.h>
+#include <linux/workqueue.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include "core.h"
 
 #define OSM_NAME        "i2o"
diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c
index bda2c62648ba..b675b4ebbebd 100644
--- a/drivers/message/i2o/exec-osm.c
+++ b/drivers/message/i2o/exec-osm.c
@@ -30,6 +30,10 @@
 #include <linux/module.h>
 #include <linux/i2o.h>
 #include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <asm/param.h>          /* HZ */
 #include "core.h"
 
 #define OSM_NAME "exec-osm"
diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
index 361da8d1d5e7..61b837de4b6a 100644
--- a/drivers/message/i2o/iop.c
+++ b/drivers/message/i2o/iop.c
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/i2o.h>
 #include <linux/delay.h>
+#include <linux/sched.h>
 #include "core.h"
 
 #define OSM_NAME        "i2o"
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 585cded3d365..a984c0efabf0 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -32,9 +32,12 @@
 #include <linux/suspend.h>
 #include <linux/slab.h>
 #include <linux/kthread.h>
+#include <linux/delay.h>
 
 #include <asm/dma.h>
 #include <asm/semaphore.h>
+#include <asm/arch/collie.h>
+#include <asm/mach-types.h>
 
 #include "ucb1x00.h"
 
@@ -85,12 +88,23 @@ static inline void ucb1x00_ts_mode_int(struct ucb1x00_ts *ts)
  */
 static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts)
 {
-        ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
-                        UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
-                        UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
-                        UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+        if (machine_is_collie()) {
+                ucb1x00_io_write(ts->ucb, COLLIE_TC35143_GPIO_TBL_CHK, 0);
+                ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+                                  UCB_TS_CR_TSPX_POW | UCB_TS_CR_TSMX_POW |
+                                  UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
 
-        return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync);
+                udelay(55);
+
+                return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_AD2, ts->adcsync);
+        } else {
+                ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+                                  UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
+                                  UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
+                                  UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+
+                return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync);
+        }
 }
 
 /*
@@ -101,12 +115,16 @@ static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts)
  */
 static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts)
 {
-        ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
-                        UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
-                        UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
-        ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
-                        UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
-                        UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+        if (machine_is_collie())
+                ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK);
+        else {
+                ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+                                  UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+                                  UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+                ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+                                  UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+                                  UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+        }
         ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
                         UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
                         UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
@@ -124,12 +142,17 @@ static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts)
  */
 static inline unsigned int ucb1x00_ts_read_ypos(struct ucb1x00_ts *ts)
 {
-        ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
-                        UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
-                        UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
-        ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
-                        UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
-                        UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+        if (machine_is_collie())
+                ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK);
+        else {
+                ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+                                  UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+                                  UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+                ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+                                  UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+                                  UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+        }
+
         ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
                         UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
                         UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
@@ -163,6 +186,15 @@ static inline unsigned int ucb1x00_ts_read_yres(struct ucb1x00_ts *ts)
         return ucb1x00_adc_read(ts->ucb, 0, ts->adcsync);
 }
 
+static inline int ucb1x00_ts_pen_down(struct ucb1x00_ts *ts)
+{
+        unsigned int val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
+        if (machine_is_collie())
+                return (!(val & (UCB_TS_CR_TSPX_LOW)));
+        else
+                return (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW));
+}
+
 /*
  * This is a RT kernel thread that handles the ADC accesses
  * (mainly so we can use semaphores in the UCB1200 core code
@@ -186,7 +218,7 @@ static int ucb1x00_thread(void *_ts)
 
         add_wait_queue(&ts->irq_wait, &wait);
         while (!kthread_should_stop()) {
-                unsigned int x, y, p, val;
+                unsigned int x, y, p;
                 signed long timeout;
 
                 ts->restart = 0;
@@ -206,12 +238,12 @@ static int ucb1x00_thread(void *_ts)
                 msleep(10);
 
                 ucb1x00_enable(ts->ucb);
-                val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
 
-                if (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW)) {
+
+                if (ucb1x00_ts_pen_down(ts)) {
                         set_task_state(tsk, TASK_INTERRUPTIBLE);
 
-                        ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, UCB_FALLING);
+                        ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, machine_is_collie() ? UCB_RISING : UCB_FALLING);
                         ucb1x00_disable(ts->ucb);
 
                         /*
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index fa83f15fdf16..9b629856c735 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -85,6 +85,12 @@ static void mmc_blk_put(struct mmc_blk_data *md)
         up(&open_lock);
 }
 
+static inline int mmc_blk_readonly(struct mmc_card *card)
+{
+        return mmc_card_readonly(card) ||
+               !(card->csd.cmdclass & CCC_BLOCK_WRITE);
+}
+
 static int mmc_blk_open(struct inode *inode, struct file *filp)
 {
         struct mmc_blk_data *md;
@@ -97,7 +103,7 @@ static int mmc_blk_open(struct inode *inode, struct file *filp)
                 ret = 0;
 
                 if ((filp->f_mode & FMODE_WRITE) &&
-                        mmc_card_readonly(md->queue.card))
+                        mmc_blk_readonly(md->queue.card))
                         ret = -EROFS;
         }
 
@@ -410,7 +416,7 @@ static int mmc_blk_probe(struct mmc_card *card)
         printk(KERN_INFO "%s: %s %s %dKiB %s\n",
                 md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
                 (card->csd.capacity << card->csd.read_blkbits) / 1024,
-                mmc_card_readonly(card)?"(ro)":"");
+                mmc_blk_readonly(card)?"(ro)":"");
 
         mmc_set_drvdata(card, md);
         add_disk(md->disk);
diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index 8eba373d42d7..d575e3a018bc 100644
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -29,7 +29,6 @@
 
 #include <asm/dma.h>
 #include <asm/io.h>
-#include <asm/irq.h>
 #include <asm/scatterlist.h>
 #include <asm/sizes.h>
 
diff --git a/drivers/mtd/chips/jedec.c b/drivers/mtd/chips/jedec.c
index 62d235a9a4e2..4f6778f3ee3e 100644
--- a/drivers/mtd/chips/jedec.c
+++ b/drivers/mtd/chips/jedec.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/mtd/jedec.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/mtd.h>
diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index dfd335e4a2a8..df987a53ed9c 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -44,6 +44,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/errno.h>
+#include <linux/string.h>
 #include <linux/mtd/mtd.h>
 #ifdef HAVE_PARTITIONS
 #include <linux/mtd/partitions.h>
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index a423a382095a..765c0179c8df 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -22,6 +22,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/slab.h>
 #include <linux/mtd/mtd.h>
 
 #define ERROR(fmt, args...) printk(KERN_ERR "phram: " fmt , ## args)
diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c
index 0ba0ff7d43b9..63104c73ca3c 100644
--- a/drivers/mtd/maps/bast-flash.c
+++ b/drivers/mtd/maps/bast-flash.c
@@ -33,6 +33,7 @@
 #include <linux/string.h>
 #include <linux/ioport.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c
index da8584a662f4..c68b31dc7e6d 100644
--- a/drivers/mtd/maps/ceiva.c
+++ b/drivers/mtd/maps/ceiva.c
@@ -20,6 +20,7 @@
 #include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c
index 938c41f2f056..e5b74169fde6 100644
--- a/drivers/mtd/maps/dc21285.c
+++ b/drivers/mtd/maps/dc21285.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/maps/dilnetpc.c b/drivers/mtd/maps/dilnetpc.c
index 0bc79c93a584..f99519692cb7 100644
--- a/drivers/mtd/maps/dilnetpc.c
+++ b/drivers/mtd/maps/dilnetpc.c
@@ -30,12 +30,15 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <asm/io.h>
+#include <linux/string.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/concat.h>
 
+#include <asm/io.h>
+
 /*
 ** The DIL/NetPC keeps its BIOS in two distinct flash blocks.
 ** Destroying any of these blocks transforms the DNPC into
diff --git a/drivers/mtd/maps/epxa10db-flash.c b/drivers/mtd/maps/epxa10db-flash.c
index ab6dbe2b8cce..1df6188926b3 100644
--- a/drivers/mtd/maps/epxa10db-flash.c
+++ b/drivers/mtd/maps/epxa10db-flash.c
@@ -27,12 +27,15 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <asm/io.h>
+#include <linux/slab.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
+#include <asm/io.h>
 #include <asm/hardware.h>
+
 #ifdef CONFIG_EPXA10DB
 #define BOARD_NAME "EPXA10DB"
 #else
diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c
index 068bb6a54520..00f7bbe5479e 100644
--- a/drivers/mtd/maps/fortunet.c
+++ b/drivers/mtd/maps/fortunet.c
@@ -7,11 +7,14 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <asm/io.h>
+#include <linux/string.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
+#include <asm/io.h>
+
 #define MAX_NUM_REGIONS         4
 #define MAX_NUM_PARTITIONS      8
 
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index a9f86c7fbd52..1e5d6e1d05f3 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -22,11 +22,13 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
 
 #include <asm/io.h>
 #include <asm/hardware.h>
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 3fcc32884074..da316e543237 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -20,11 +20,14 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
+
 #include <asm/io.h>
 #include <asm/mach/flash.h>
 
diff --git a/drivers/mtd/maps/lubbock-flash.c b/drivers/mtd/maps/lubbock-flash.c
index 1298de475c9a..2337e0c46750 100644
--- a/drivers/mtd/maps/lubbock-flash.c
+++ b/drivers/mtd/maps/lubbock-flash.c
@@ -15,10 +15,13 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/slab.h>
+
 #include <linux/dma-mapping.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
+
 #include <asm/io.h>
 #include <asm/hardware.h>
 #include <asm/arch/pxa-regs.h>
diff --git a/drivers/mtd/maps/mainstone-flash.c b/drivers/mtd/maps/mainstone-flash.c
index 87e93fa60588..da0f8a692628 100644
--- a/drivers/mtd/maps/mainstone-flash.c
+++ b/drivers/mtd/maps/mainstone-flash.c
@@ -16,9 +16,12 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
+
 #include <asm/io.h>
 #include <asm/hardware.h>
 #include <asm/arch/pxa-regs.h>
diff --git a/drivers/mtd/maps/omap-toto-flash.c b/drivers/mtd/maps/omap-toto-flash.c
index 496109071cb1..da36e8dddd17 100644
--- a/drivers/mtd/maps/omap-toto-flash.c
+++ b/drivers/mtd/maps/omap-toto-flash.c
@@ -12,9 +12,9 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
-
 #include <linux/errno.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/maps/omap_nor.c b/drivers/mtd/maps/omap_nor.c
index b17bca657daf..fa84566245a7 100644
--- a/drivers/mtd/maps/omap_nor.c
+++ b/drivers/mtd/maps/omap_nor.c
@@ -36,6 +36,8 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/slab.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index 18dbd3af1eaa..d9c64e99ee32 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 118b04544cad..a0577ea00c3c 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -30,6 +30,7 @@
 #include <linux/string.h>
 #include <linux/ioport.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c
index 995e9991cb8d..4e28b977f224 100644
--- a/drivers/mtd/maps/tqm8xxl.c
+++ b/drivers/mtd/maps/tqm8xxl.c
@@ -27,12 +27,14 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <asm/io.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
+#include <asm/io.h>
+
 #define FLASH_ADDR 0x40000000
 #define FLASH_SIZE 0x00800000
 #define FLASH_BANK_MAX 4
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index b7c32c242bc7..400dd9c89883 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
+#include <linux/sched.h>        /* TASK_* */
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/blktrans.h>
 
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index c534fd5d95cb..16df1e4fb0e9 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/fs.h>
+#include <linux/sched.h>        /* TASK_* */
 #include <asm/uaccess.h>
 
 #include <linux/device.h>
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 8f66d093c80d..f3e65af33a9c 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -14,7 +14,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
-
+#include <linux/sched.h>        /* TASK_* */
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/concat.h>
 
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index b47ebcb31e0f..b58ba236a9eb 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -51,6 +51,7 @@
 #include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index 73f2fcfc557f..bbca8ae8018c 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -1658,6 +1658,7 @@ static struct of_device_id bmac_match[] =
         },
         {},
 };
+MODULE_DEVICE_TABLE (of, bmac_match);
 
 static struct macio_driver bmac_driver = 
 {
diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c
index 1ce2c675b8a7..a806dfe54d23 100644
--- a/drivers/net/eepro.c
+++ b/drivers/net/eepro.c
@@ -552,8 +552,7 @@ static int __init do_eepro_probe(struct net_device *dev)
         {
                 unsigned short int WS[32]=WakeupSeq;
 
-                if (check_region(WakeupPort, 2)==0) {
-
+                if (request_region(WakeupPort, 2, "eepro wakeup")) {
                         if (net_debug>5)
                                 printk(KERN_DEBUG "Waking UP\n");
 
@@ -563,7 +562,10 @@ static int __init do_eepro_probe(struct net_device *dev)
                                 outb_p(WS[i],WakeupPort);
                                 if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]);
                         }
-                } else printk(KERN_WARNING "Checkregion Failed!\n");
+
+                        release_region(WakeupPort, 2);
+                } else
+                        printk(KERN_WARNING "PnP wakeup region busy!\n");
         }
 #endif
 
@@ -705,7 +707,7 @@ static void __init eepro_print_info (struct net_device *dev)
                                         dev->name, (unsigned)dev->base_addr);
                         break;
                 case LAN595FX:
-                        printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,", 
+                        printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
                                         dev->name, (unsigned)dev->base_addr);
                         break;
                 case LAN595TX:
@@ -713,7 +715,7 @@ static void __init eepro_print_info (struct net_device *dev)
                                         dev->name, (unsigned)dev->base_addr);
                         break;
                 case LAN595:
-                        printk("%s: Intel 82595-based lan card at %#x,", 
+                        printk("%s: Intel 82595-based lan card at %#x,",
                                         dev->name, (unsigned)dev->base_addr);
         }
 
@@ -726,7 +728,7 @@ static void __init eepro_print_info (struct net_device *dev)
 
         if (dev->irq > 2)
                 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
-        else 
+        else
                 printk(", %s.\n", ifmap[dev->if_port]);
 
         if (net_debug > 3) {
@@ -756,7 +758,7 @@ static int __init eepro_probe1(struct net_device *dev, int autoprobe)
         int err;
 
         /* Grab the region so we can find another board if autoIRQ fails. */
-        if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) { 
+        if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
                 if (!autoprobe)
                         printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
                                 ioaddr);
@@ -838,15 +840,15 @@ static int __init eepro_probe1(struct net_device *dev, int autoprobe)
                 /* Mask off INT number */
                 int count = lp->word[1] & 7;
                 unsigned irqMask = lp->word[7];
- 
+
                 while (count--)
                         irqMask &= irqMask - 1;
- 
+
                 count = ffs(irqMask);
- 
+
                 if (count)
                         dev->irq = count - 1;
- 
+
                 if (dev->irq < 2) {
                         printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
                         goto exit;
@@ -854,7 +856,7 @@ static int __init eepro_probe1(struct net_device *dev, int autoprobe)
                         dev->irq = 9;
                 }
         }
- 
+
         dev->open               = eepro_open;
         dev->stop               = eepro_close;
         dev->hard_start_xmit    = eepro_send_packet;
@@ -863,7 +865,7 @@ static int __init eepro_probe1(struct net_device *dev, int autoprobe)
         dev->tx_timeout         = eepro_tx_timeout;
         dev->watchdog_timeo     = TX_TIMEOUT;
         dev->ethtool_ops        = &eepro_ethtool_ops;
- 
+
         /* print boot time info */
         eepro_print_info(dev);
 
@@ -1047,8 +1049,8 @@ static int eepro_open(struct net_device *dev)
 
 
         /* Initialize the RCV and XMT upper and lower limits */
-        outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG); 
-        outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG); 
+        outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
+        outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
         outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
         outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
 
@@ -1065,12 +1067,12 @@ static int eepro_open(struct net_device *dev)
         eepro_clear_int(ioaddr);
 
         /* Initialize RCV */
-        outw(lp->rcv_lower_limit, ioaddr + RCV_BAR); 
+        outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
         lp->rx_start = lp->rcv_lower_limit;
-        outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP); 
+        outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
 
         /* Initialize XMT */
-        outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar); 
+        outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
         lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
         lp->tx_last = 0;
 
@@ -1411,7 +1413,7 @@ set_multicast_list(struct net_device *dev)
                                 outb(0x08, ioaddr + STATUS_REG);
 
                                 if (i & 0x20) { /* command ABORTed */
-                                        printk(KERN_NOTICE "%s: multicast setup failed.\n", 
+                                        printk(KERN_NOTICE "%s: multicast setup failed.\n",
                                                 dev->name);
                                         break;
                                 } else if ((i & 0x0f) == 0x03)  { /* MC-Done */
@@ -1512,7 +1514,7 @@ hardware_send_packet(struct net_device *dev, void *buf, short length)
                 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
 
         if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
-                if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {   
+                if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
                                 /* Arrrr!!!, must keep the xmt header together,
                                 several days were lost to chase this one down. */
                         last = lp->xmt_lower_limit;
@@ -1643,7 +1645,7 @@ eepro_rx(struct net_device *dev)
                         else if (rcv_status & 0x0800)
                                 lp->stats.rx_crc_errors++;
 
-                        printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n", 
+                        printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
                                 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
                 }
 
@@ -1674,10 +1676,10 @@ eepro_transmit_interrupt(struct net_device *dev)
 {
         struct eepro_local *lp = netdev_priv(dev);
         short ioaddr = dev->base_addr;
-        short boguscount = 25; 
+        short boguscount = 25;
         short xmt_status;
 
-        while ((lp->tx_start != lp->tx_end) && boguscount--) { 
+        while ((lp->tx_start != lp->tx_end) && boguscount--) {
 
                 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
                 xmt_status = inw(ioaddr+IO_PORT);
@@ -1723,7 +1725,7 @@ static int eepro_ethtool_get_settings(struct net_device *dev,
 {
         struct eepro_local      *lp = (struct eepro_local *)dev->priv;
 
-        cmd->supported =        SUPPORTED_10baseT_Half | 
+        cmd->supported =        SUPPORTED_10baseT_Half |
                                 SUPPORTED_10baseT_Full |
                                 SUPPORTED_Autoneg;
         cmd->advertising =      ADVERTISED_10baseT_Half |
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 36da54ad2b7b..e5246f227c98 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -514,7 +514,7 @@ static int ibmveth_open(struct net_device *netdev)
 
         if(lpar_rc != H_Success) {
                 ibmveth_error_printk("h_register_logical_lan failed with %ld\n", lpar_rc);
-                ibmveth_error_printk("buffer TCE:0x%x filter TCE:0x%x rxq desc:0x%lx MAC:0x%lx\n",
+                ibmveth_error_printk("buffer TCE:0x%lx filter TCE:0x%lx rxq desc:0x%lx MAC:0x%lx\n",
                                      adapter->buffer_list_dma,
                                      adapter->filter_list_dma,
                                      rxq_desc.desc,
@@ -1174,14 +1174,16 @@ static struct vio_device_id ibmveth_device_table[] __devinitdata= {
         { "network", "IBM,l-lan"},
         { "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, ibmveth_device_table);
 
 static struct vio_driver ibmveth_driver = {
-        .name        = (char *)ibmveth_driver_name,
-        .id_table    = ibmveth_device_table,
-        .probe       = ibmveth_probe,
-        .remove      = ibmveth_remove
+        .id_table       = ibmveth_device_table,
+        .probe          = ibmveth_probe,
+        .remove         = ibmveth_remove,
+        .driver         = {
+                .name   = ibmveth_driver_name,
+                .owner  = THIS_MODULE,
+        }
 };
 
 static int __init ibmveth_module_init(void)
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index aef80f5e7c9c..b886b07412a6 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -704,15 +704,12 @@ static int pxa_irda_stop(struct net_device *dev)
         return 0;
 }
 
-static int pxa_irda_suspend(struct device *_dev, pm_message_t state, u32 level)
+static int pxa_irda_suspend(struct device *_dev, pm_message_t state)
 {
         struct net_device *dev = dev_get_drvdata(_dev);
         struct pxa_irda *si;
 
-        if (!dev || level != SUSPEND_DISABLE)
-                return 0;
-
-        if (netif_running(dev)) {
+        if (dev && netif_running(dev)) {
                 si = netdev_priv(dev);
                 netif_device_detach(dev);
                 pxa_irda_shutdown(si);
@@ -721,15 +718,12 @@ static int pxa_irda_suspend(struct device *_dev, pm_message_t state, u32 level)
         return 0;
 }
 
-static int pxa_irda_resume(struct device *_dev, u32 level)
+static int pxa_irda_resume(struct device *_dev)
 {
         struct net_device *dev = dev_get_drvdata(_dev);
         struct pxa_irda *si;
 
-        if (!dev || level != RESUME_ENABLE)
-                return 0;
-
-        if (netif_running(dev)) {
+        if (dev && netif_running(dev)) {
                 si = netdev_priv(dev);
                 pxa_irda_startup(si);
                 netif_device_attach(dev);
diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index bbac720cca63..140b7cdb1f7e 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -638,21 +638,14 @@ static void smsc_ircc_setup_qos(struct smsc_ircc_cb *self)
  */
 static void smsc_ircc_init_chip(struct smsc_ircc_cb *self)
 {
-        int iobase, ir_mode, ctrl, fast;
-
-        IRDA_ASSERT(self != NULL, return;);
-
-        iobase = self->io.fir_base;
-        ir_mode = IRCC_CFGA_IRDA_SIR_A;
-        ctrl = 0;
-        fast = 0;
+        int iobase = self->io.fir_base;
 
         register_bank(iobase, 0);
         outb(IRCC_MASTER_RESET, iobase + IRCC_MASTER);
         outb(0x00, iobase + IRCC_MASTER);
 
         register_bank(iobase, 1);
-        outb(((inb(iobase + IRCC_SCE_CFGA) & 0x87) | ir_mode),
+        outb(((inb(iobase + IRCC_SCE_CFGA) & 0x87) | IRCC_CFGA_IRDA_SIR_A),
              iobase + IRCC_SCE_CFGA);
 
 #ifdef smsc_669 /* Uses pin 88/89 for Rx/Tx */
@@ -666,10 +659,10 @@ static void smsc_ircc_init_chip(struct smsc_ircc_cb *self)
         outb(SMSC_IRCC2_FIFO_THRESHOLD, iobase + IRCC_FIFO_THRESHOLD);
 
         register_bank(iobase, 4);
-        outb((inb(iobase + IRCC_CONTROL) & 0x30) | ctrl, iobase + IRCC_CONTROL);
+        outb((inb(iobase + IRCC_CONTROL) & 0x30), iobase + IRCC_CONTROL);
 
         register_bank(iobase, 0);
-        outb(fast, iobase + IRCC_LCR_A);
+        outb(0, iobase + IRCC_LCR_A);
 
         smsc_ircc_set_sir_speed(self, SMSC_IRCC2_C_IRDA_FALLBACK_SPEED);
 
@@ -1556,6 +1549,46 @@ static int ircc_is_receiving(struct smsc_ircc_cb *self)
 }
 #endif /* unused */
 
+static int smsc_ircc_request_irq(struct smsc_ircc_cb *self)
+{
+        int error;
+
+        error = request_irq(self->io.irq, smsc_ircc_interrupt, 0,
+                            self->netdev->name, self->netdev);
+        if (error)
+                IRDA_DEBUG(0, "%s(), unable to allocate irq=%d, err=%d\n",
+                           __FUNCTION__, self->io.irq, error);
+
+        return error;
+}
+
+static void smsc_ircc_start_interrupts(struct smsc_ircc_cb *self)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&self->lock, flags);
+
+        self->io.speed = 0;
+        smsc_ircc_change_speed(self, SMSC_IRCC2_C_IRDA_FALLBACK_SPEED);
+
+        spin_unlock_irqrestore(&self->lock, flags);
+}
+
+static void smsc_ircc_stop_interrupts(struct smsc_ircc_cb *self)
+{
+        int iobase = self->io.fir_base;
+        unsigned long flags;
+
+        spin_lock_irqsave(&self->lock, flags);
+
+        register_bank(iobase, 0);
+        outb(0, iobase + IRCC_IER);
+        outb(IRCC_MASTER_RESET, iobase + IRCC_MASTER);
+        outb(0x00, iobase + IRCC_MASTER);
+
+        spin_unlock_irqrestore(&self->lock, flags);
+}
+
 
 /*
  * Function smsc_ircc_net_open (dev)
@@ -1567,7 +1600,6 @@ static int smsc_ircc_net_open(struct net_device *dev)
 {
         struct smsc_ircc_cb *self;
         char hwname[16];
-        unsigned long flags;
 
         IRDA_DEBUG(1, "%s\n", __FUNCTION__);
 
@@ -1575,6 +1607,11 @@ static int smsc_ircc_net_open(struct net_device *dev)
         self = netdev_priv(dev);
         IRDA_ASSERT(self != NULL, return 0;);
 
+        if (self->io.suspended) {
+                IRDA_DEBUG(0, "%s(), device is suspended\n", __FUNCTION__);
+                return -EAGAIN;
+        }
+
         if (request_irq(self->io.irq, smsc_ircc_interrupt, 0, dev->name,
                         (void *) dev)) {
                 IRDA_DEBUG(0, "%s(), unable to allocate irq=%d\n",
@@ -1582,11 +1619,7 @@ static int smsc_ircc_net_open(struct net_device *dev)
                 return -EAGAIN;
         }
 
-        spin_lock_irqsave(&self->lock, flags);
-        /*smsc_ircc_sir_start(self);*/
-        self->io.speed = 0;
-        smsc_ircc_change_speed(self, SMSC_IRCC2_C_IRDA_FALLBACK_SPEED);
-        spin_unlock_irqrestore(&self->lock, flags);
+        smsc_ircc_start_interrupts(self);
 
         /* Give self a hardware name */
         /* It would be cool to offer the chip revision here - Jean II */
@@ -1639,7 +1672,12 @@ static int smsc_ircc_net_close(struct net_device *dev)
                 irlap_close(self->irlap);
         self->irlap = NULL;
 
-        free_irq(self->io.irq, dev);
+        smsc_ircc_stop_interrupts(self);
+
+        /* if we are called from smsc_ircc_resume we don't have IRQ reserved */
+        if (!self->io.suspended)
+                free_irq(self->io.irq, dev);
+
         disable_dma(self->io.dma);
         free_dma(self->io.dma);
 
@@ -1650,11 +1688,18 @@ static int smsc_ircc_suspend(struct device *dev, pm_message_t state)
 {
         struct smsc_ircc_cb *self = dev_get_drvdata(dev);
 
-        IRDA_MESSAGE("%s, Suspending\n", driver_name);
-
         if (!self->io.suspended) {
-                smsc_ircc_net_close(self->netdev);
+                IRDA_DEBUG(1, "%s, Suspending\n", driver_name);
+
+                rtnl_lock();
+                if (netif_running(self->netdev)) {
+                        netif_device_detach(self->netdev);
+                        smsc_ircc_stop_interrupts(self);
+                        free_irq(self->io.irq, self->netdev);
+                        disable_dma(self->io.dma);
+                }
                 self->io.suspended = 1;
+                rtnl_unlock();
         }
 
         return 0;
@@ -1665,11 +1710,25 @@ static int smsc_ircc_resume(struct device *dev)
         struct smsc_ircc_cb *self = dev_get_drvdata(dev);
 
         if (self->io.suspended) {
-
-                smsc_ircc_net_open(self->netdev);
+                IRDA_DEBUG(1, "%s, Waking up\n", driver_name);
+
+                rtnl_lock();
+                smsc_ircc_init_chip(self);
+                if (netif_running(self->netdev)) {
+                        if (smsc_ircc_request_irq(self)) {
+                                /*
+                                 * Don't fail resume process, just kill this
+                                 * network interface
+                                 */
+                                unregister_netdevice(self->netdev);
+                        } else {
+                                enable_dma(self->io.dma);
+                                smsc_ircc_start_interrupts(self);
+                                netif_device_attach(self->netdev);
+                        }
+                }
                 self->io.suspended = 0;
-
-                IRDA_MESSAGE("%s, Waking up\n", driver_name);
+                rtnl_unlock();
         }
         return 0;
 }
@@ -1682,9 +1741,6 @@ static int smsc_ircc_resume(struct device *dev)
  */
 static int __exit smsc_ircc_close(struct smsc_ircc_cb *self)
 {
-        int iobase;
-        unsigned long flags;
-
         IRDA_DEBUG(1, "%s\n", __FUNCTION__);
 
         IRDA_ASSERT(self != NULL, return -1;);
@@ -1694,22 +1750,7 @@ static int __exit smsc_ircc_close(struct smsc_ircc_cb *self)
         /* Remove netdevice */
         unregister_netdev(self->netdev);
 
-        /* Make sure the irq handler is not exectuting */
-        spin_lock_irqsave(&self->lock, flags);
-
-        /* Stop interrupts */
-        iobase = self->io.fir_base;
-        register_bank(iobase, 0);
-        outb(0, iobase + IRCC_IER);
-        outb(IRCC_MASTER_RESET, iobase + IRCC_MASTER);
-        outb(0x00, iobase + IRCC_MASTER);
-#if 0
-        /* Reset to SIR mode */
-        register_bank(iobase, 1);
-        outb(IRCC_CFGA_IRDA_SIR_A|IRCC_CFGA_TX_POLARITY, iobase + IRCC_SCE_CFGA);
-        outb(IRCC_CFGB_IR, iobase + IRCC_SCE_CFGB);
-#endif
-        spin_unlock_irqrestore(&self->lock, flags);
+        smsc_ircc_stop_interrupts(self);
 
         /* Release the PORTS that this driver is using */
         IRDA_DEBUG(0, "%s(), releasing 0x%03x\n",  __FUNCTION__,
diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index 3d56cf5a4e23..f5ea39ff1017 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -70,8 +70,9 @@
 #include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/ethtool.h>
+
+#include <asm/abs_addr.h>
 #include <asm/iSeries/mf.h>
-#include <asm/iSeries/iSeries_pci.h>
 #include <asm/uaccess.h>
 
 #include <asm/iSeries/HvLpConfig.h>
@@ -1397,13 +1398,13 @@ static inline void veth_build_dma_list(struct dma_chunk *list,
          * it just at the granularity of iSeries real->absolute
          * mapping?  Indeed, given the way the allocator works, can we
          * count on them being absolutely contiguous? */
-        list[0].addr = ISERIES_HV_ADDR(p);
+        list[0].addr = iseries_hv_addr(p);
         list[0].size = min(length,
                            PAGE_SIZE - ((unsigned long)p & ~PAGE_MASK));
 
         done = list[0].size;
         while (done < length) {
-                list[i].addr = ISERIES_HV_ADDR(p + done);
+                list[i].addr = iseries_hv_addr(p + done);
                 list[i].size = min(length-done, PAGE_SIZE);
                 done += list[i].size;
                 i++;
@@ -1496,8 +1497,8 @@ static void veth_receive(struct veth_lpar_connection *cnx,
                                             cnx->dst_inst,
                                             HvLpDma_AddressType_RealAddress,
                                             HvLpDma_AddressType_TceIndex,
-                                            ISERIES_HV_ADDR(&local_list),
-                                            ISERIES_HV_ADDR(&remote_list),
+                                            iseries_hv_addr(&local_list),
+                                            iseries_hv_addr(&remote_list),
                                             length);
                 if (rc != HvLpDma_Rc_Good) {
                         dev_kfree_skb_irq(skb);
@@ -1647,10 +1648,13 @@ static struct vio_device_id veth_device_table[] __devinitdata = {
 MODULE_DEVICE_TABLE(vio, veth_device_table);
 
 static struct vio_driver veth_driver = {
-        .name = DRV_NAME,
         .id_table = veth_device_table,
         .probe = veth_probe,
-        .remove = veth_remove
+        .remove = veth_remove,
+        .driver = {
+                .name = DRV_NAME,
+                .owner = THIS_MODULE,
+        }
 };
 
 /*
diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index 09b1e7b364e5..2a5add257b8f 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -1016,6 +1016,7 @@ static struct of_device_id mace_match[] =
         },
         {},
 };
+MODULE_DEVICE_TABLE (of, mace_match);
 
 static struct macio_driver mace_driver = 
 {
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 25c9a99c377b..8fbba21d975b 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1533,6 +1533,9 @@ static int mv643xx_eth_probe(struct device *ddev)
         printk(KERN_NOTICE "%s: RX NAPI Enabled \n", dev->name);
 #endif
 
+        if (mp->tx_sram_size > 0)
+                printk(KERN_NOTICE "%s: Using SRAM\n", dev->name);
+
         return 0;
 
 out:
diff --git a/drivers/net/skfp/smt.c b/drivers/net/skfp/smt.c
index f17c05cbe44b..99a776a51fb5 100644
--- a/drivers/net/skfp/smt.c
+++ b/drivers/net/skfp/smt.c
@@ -1896,7 +1896,7 @@ void smt_swap_para(struct smt_header *sm, int len, int direction)
 
 static void smt_string_swap(char *data, const char *format, int len)
 {
-        const char      *open_paren = 0 ;
+        const char      *open_paren = NULL ;
         int     x ;
 
         while (len > 0  && *format) {
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index ac9ce6509eee..817f200742c3 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -230,12 +230,12 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_CAN_USE_16BIT       1
 #define SMC_CAN_USE_32BIT       0
 
-#define SMC_inb(a, r)           inb((a) + (r) - 0xa0000000)
-#define SMC_inw(a, r)           inw((a) + (r) - 0xa0000000)
-#define SMC_outb(v, a, r)       outb(v, (a) + (r) - 0xa0000000)
-#define SMC_outw(v, a, r)       outw(v, (a) + (r) - 0xa0000000)
-#define SMC_insw(a, r, p, l)    insw((a) + (r) - 0xa0000000, p, l)
-#define SMC_outsw(a, r, p, l)   outsw((a) + (r) - 0xa0000000, p, l)
+#define SMC_inb(a, r)           inb((u32)a) + (r))
+#define SMC_inw(a, r)           inw(((u32)a) + (r))
+#define SMC_outb(v, a, r)       outb(v, ((u32)a) + (r))
+#define SMC_outw(v, a, r)       outw(v, ((u32)a) + (r))
+#define SMC_insw(a, r, p, l)    insw(((u32)a) + (r), p, l)
+#define SMC_outsw(a, r, p, l)   outsw(((u32)a) + (r), p, l)
 
 #define set_irq_type(irq, type) do {} while(0)
 
diff --git a/drivers/net/wireless/prism54/islpci_mgt.c b/drivers/net/wireless/prism54/islpci_mgt.c
index 4937a5ad4b2c..6a60c5970cb5 100644
--- a/drivers/net/wireless/prism54/islpci_mgt.c
+++ b/drivers/net/wireless/prism54/islpci_mgt.c
@@ -137,7 +137,7 @@ islpci_mgmt_rx_fill(struct net_device *ndev)
                                                        PCI_DMA_FROMDEVICE);
                         if (!buf->pci_addr) {
                                 printk(KERN_WARNING
-                                       "Failed to make memory DMA'able\n.");
+                                       "Failed to make memory DMA'able.\n");
                                 return -ENOMEM;
                         }
                 }
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index a62a4345b466..2d4639d6841f 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -39,6 +39,7 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/pci.h>
+#include <linux/string.h>
 #include "cpci_hotplug.h"
 
 #define DRIVER_VERSION  "0.1"
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index 790abadd816c..f7cb00da38df 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -36,6 +36,7 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/pci.h>
+#include <linux/signal.h>       /* SA_SHIRQ */
 #include "cpci_hotplug.h"
 #include "cpcihp_zt5550.h"
 
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 8e47fa66e25e..060d74775d7b 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -37,6 +37,8 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include "pci_hotplug.h"
 #include "../pci.h"
 
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 0392e004258f..aabf1e70b528 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -1077,7 +1077,7 @@ static int enable_slot(struct hotplug_slot *hs)
         if (rc) {
                 err("Adding this card exceeds the limitations of this bus.\n");
                 err("(i.e., >1 133MHz cards running on same bus, or "
-                     ">2 66 PCI cards running on same bus\n.");
+                     ">2 66 PCI cards running on same bus.\n");
                 err("Try hot-adding into another bus\n");
                 rc = -EINVAL;
                 goto error_nopower;
diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c
index 33b539b34f7e..ff17d8e07e94 100644
--- a/drivers/pci/hotplug/pciehp_pci.c
+++ b/drivers/pci/hotplug/pciehp_pci.c
@@ -113,7 +113,7 @@ int pciehp_unconfigure_device(struct pci_func* func)
  */
 int pciehp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num)
 {
-#if defined(CONFIG_X86) && !defined(CONFIG_X86_IO_APIC) && !defined(CONFIG_X86_64)
+#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_IO_APIC)
         int rc;
         u16 temp_word;
         struct pci_dev fakedev;
diff --git a/drivers/pci/hotplug/pciehprm_nonacpi.c b/drivers/pci/hotplug/pciehprm_nonacpi.c
index 3622965f8961..33b2c69a0829 100644
--- a/drivers/pci/hotplug/pciehprm_nonacpi.c
+++ b/drivers/pci/hotplug/pciehprm_nonacpi.c
@@ -33,10 +33,13 @@
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/slab.h>
+
 #include <asm/uaccess.h>
 #ifdef CONFIG_IA64
 #include <asm/iosapic.h>
 #endif
+
 #include "pciehp.h"
 #include "pciehprm.h"
 #include "pciehprm_nonacpi.h"
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index ad1017da8656..fcb66b9a0e28 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -16,10 +16,13 @@
  */
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/string.h>
+
 #include <asm/pci-bridge.h>
 #include <asm/semaphore.h>
 #include <asm/rtas.h>
 #include <asm/vio.h>
+
 #include "../pci.h"
 #include "rpaphp.h"
 #include "rpadlpar.h"
diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index 46c157d26a2f..f7c12d7dfcfc 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -23,11 +23,13 @@
  *
  */
 #include <linux/pci.h>
+#include <linux/string.h>
+
 #include <asm/pci-bridge.h>
 #include <asm/rtas.h>
 #include <asm/machdep.h>
-#include "../pci.h"             /* for pci_add_new_bus */
 
+#include "../pci.h"             /* for pci_add_new_bus */
 #include "rpaphp.h"
 
 static struct pci_bus *find_bus_among_children(struct pci_bus *bus,
diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c
index 0e8815495083..daa89ae57123 100644
--- a/drivers/pci/hotplug/rpaphp_slot.c
+++ b/drivers/pci/hotplug/rpaphp_slot.c
@@ -27,6 +27,9 @@
 #include <linux/kobject.h>
 #include <linux/sysfs.h>
 #include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include <asm/rtas.h>
 #include "rpaphp.h"
 
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index abe2cf411e68..08ad26a0cae7 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -32,6 +32,8 @@
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
+#include <linux/sched.h>        /* signal_pending(), struct timer_list */
+
 #include "pci_hotplug.h"
 
 #if !defined(MODULE)
diff --git a/drivers/pci/hotplug/shpchprm_nonacpi.c b/drivers/pci/hotplug/shpchprm_nonacpi.c
index d70fe5408417..c6b40998eeb3 100644
--- a/drivers/pci/hotplug/shpchprm_nonacpi.c
+++ b/drivers/pci/hotplug/shpchprm_nonacpi.c
@@ -32,6 +32,8 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
+
 #include "shpchp.h"
 
 int shpchprm_get_physical_slot_number(struct controller *ctrl, u32 *sun, u8 busnum, u8 devnum)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 8972e6a3aac0..ae986e590b48 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -8,6 +8,8 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/mempolicy.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include "pci.h"
 
 /*
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 61b855c99e39..e74d75843047 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -15,6 +15,7 @@
 #include <linux/pci.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
+#include <linux/string.h>
 #include <asm/dma.h>    /* isa_dma_bridge_buggy */
 #include "pci.h"
 
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 14f05d22bb70..467a4ceccf10 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -11,6 +11,8 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/pm.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 #include <linux/pcieport_if.h>
 
 #include "portdrv.h"
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 3c565ce7f77b..02260141dc81 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -12,6 +12,7 @@
 #include <linux/errno.h>
 #include <linux/pm.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/pcieport_if.h>
 
 #include "portdrv.h"
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index bbd9c2323d8c..5627ce1d2b32 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -356,7 +356,7 @@ static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int
 /*
  * PIIX4 ACPI: Two IO regions pointed to by longwords at
  *      0x40 (64 bytes of ACPI registers)
- *      0x90 (32 bytes of SMB registers)
+ *      0x90 (16 bytes of SMB registers)
  * and a few strange programmable PIIX4 device resources.
  */
 static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
@@ -366,7 +366,7 @@ static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
         pci_read_config_dword(dev, 0x40, &region);
         quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
         pci_read_config_dword(dev, 0x90, &region);
-        quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
+        quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
 
         /* Device resource A has enables for some of the other ones */
         pci_read_config_dword(dev, 0x5c, &res_a);
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 49bd21702314..598a115cd00e 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -9,6 +9,7 @@
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 
 #include "pci.h"
 
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 36cc9a96a338..ccf20039e909 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -154,6 +154,16 @@ config TCIC
           "Bridge" is the name used for the hardware inside your computer that
           PCMCIA cards are plugged into. If unsure, say N.
 
+config PCMCIA_M8XX
+        tristate "MPC8xx PCMCIA support"
+        depends on PCMCIA && PPC
+        select PCCARD_NONSTATIC
+        help
+        Say Y here to include support for PowerPC 8xx series PCMCIA
+        controller.
+
+        This driver is also available as a module called m8xx_pcmcia.
+
 config HD64465_PCMCIA
         tristate "HD64465 host bridge support"
         depends on HD64465 && PCMCIA
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 77ecee7f987b..fe37541abbfe 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_PD6729)				+= pd6729.o
 obj-$(CONFIG_I82365)                            += i82365.o
 obj-$(CONFIG_I82092)                            += i82092.o
 obj-$(CONFIG_TCIC)                              += tcic.o
+obj-$(CONFIG_PCMCIA_M8XX)                              += m8xx_pcmcia.o
 obj-$(CONFIG_HD64465_PCMCIA)                    += hd64465_ss.o
 obj-$(CONFIG_PCMCIA_SA1100)                     += sa11xx_core.o sa1100_cs.o
 obj-$(CONFIG_PCMCIA_SA1111)                     += sa11xx_core.o sa1111_cs.o
@@ -59,6 +60,7 @@ sa1111_cs-$(CONFIG_SA1100_JORNADA720)		+= sa1100_jornada720.o
 sa1100_cs-y                                     += sa1100_generic.o
 sa1100_cs-$(CONFIG_SA1100_ASSABET)              += sa1100_assabet.o
 sa1100_cs-$(CONFIG_SA1100_CERF)                 += sa1100_cerf.o
+sa1100_cs-$(CONFIG_SA1100_COLLIE)              += pxa2xx_sharpsl.o
 sa1100_cs-$(CONFIG_SA1100_H3600)                += sa1100_h3600.o
 sa1100_cs-$(CONFIG_SA1100_SHANNON)              += sa1100_shannon.o
 sa1100_cs-$(CONFIG_SA1100_SIMPAD)               += sa1100_simpad.o
diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c
new file mode 100644
index 000000000000..f8bed87cf2f1
--- /dev/null
+++ b/drivers/pcmcia/m8xx_pcmcia.c
@@ -0,0 +1,1290 @@
+/*
+ * m8xx_pcmcia.c - Linux PCMCIA socket driver for the mpc8xx series.
+ *
+ * (C) 1999-2000 Magnus Damm <damm@bitsmart.com>
+ * (C) 2001-2002 Montavista Software, Inc.
+ *     <mlocke@mvista.com>
+ *
+ * Support for two slots by Cyclades Corporation
+ *     <oliver.kurth@cyclades.de>
+ * Further fixes, v2.6 kernel port
+ *     <marcelo.tosatti@cyclades.com>
+ *
+ * "The ExCA standard specifies that socket controllers should provide
+ * two IO and five memory windows per socket, which can be independently
+ * configured and positioned in the host address space and mapped to
+ * arbitrary segments of card address space. " - David A Hinds. 1999
+ *
+ * This controller does _not_ meet the ExCA standard.
+ *
+ * m8xx pcmcia controller brief info:
+ * + 8 windows (attrib, mem, i/o)
+ * + up to two slots (SLOT_A and SLOT_B)
+ * + inputpins, outputpins, event and mask registers.
+ * - no offset register. sigh.
+ *
+ * Because of the lacking offset register we must map the whole card.
+ * We assign each memory window PCMCIA_MEM_WIN_SIZE address space.
+ * Make sure there is (PCMCIA_MEM_WIN_SIZE * PCMCIA_MEM_WIN_NO
+ * * PCMCIA_SOCKETS_NO) bytes at PCMCIA_MEM_WIN_BASE.
+ * The i/o windows are dynamically allocated at PCMCIA_IO_WIN_BASE.
+ * They are maximum 64KByte each...
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/string.h>
+
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/mpc8xx.h>
+#include <asm/8xx_immap.h>
+#include <asm/irq.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/ss.h>
+
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0);
+#define dprintk(args...) printk(KERN_DEBUG "m8xx_pcmcia: " args);
+#else
+#define dprintk(args...)
+#endif
+
+#define pcmcia_info(args...) printk(KERN_INFO "m8xx_pcmcia: "args)
+#define pcmcia_error(args...) printk(KERN_ERR "m8xx_pcmcia: "args)
+
+static const char *version = "Version 0.06, Aug 2005";
+MODULE_LICENSE("Dual MPL/GPL");
+
+#if !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B)
+
+/* The RPX series use SLOT_B */
+#if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
+#define CONFIG_PCMCIA_SLOT_B
+#define CONFIG_BD_IS_MHZ
+#endif
+
+/* The ADS board use SLOT_A */
+#ifdef CONFIG_ADS
+#define CONFIG_PCMCIA_SLOT_A
+#define CONFIG_BD_IS_MHZ
+#endif
+
+/* The FADS series are a mess */
+#ifdef CONFIG_FADS
+#if defined(CONFIG_MPC860T) || defined(CONFIG_MPC860) || defined(CONFIG_MPC821)
+#define CONFIG_PCMCIA_SLOT_A
+#else
+#define CONFIG_PCMCIA_SLOT_B
+#endif
+#endif
+
+/* Cyclades ACS uses both slots */
+#ifdef CONFIG_PRxK
+#define CONFIG_PCMCIA_SLOT_A
+#define CONFIG_PCMCIA_SLOT_B
+#endif
+
+#endif /* !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B) */
+
+#if defined(CONFIG_PCMCIA_SLOT_A) && defined(CONFIG_PCMCIA_SLOT_B)
+
+#define PCMCIA_SOCKETS_NO 2
+/* We have only 8 windows, dualsocket support will be limited. */
+#define PCMCIA_MEM_WIN_NO 2
+#define PCMCIA_IO_WIN_NO  2
+#define PCMCIA_SLOT_MSG "SLOT_A and SLOT_B"
+
+#elif defined(CONFIG_PCMCIA_SLOT_A) || defined(CONFIG_PCMCIA_SLOT_B)
+
+#define PCMCIA_SOCKETS_NO 1
+/* full support for one slot */
+#define PCMCIA_MEM_WIN_NO 5
+#define PCMCIA_IO_WIN_NO  2
+
+/* define _slot_ to be able to optimize macros */
+
+#ifdef CONFIG_PCMCIA_SLOT_A
+#define _slot_ 0
+#define PCMCIA_SLOT_MSG "SLOT_A"
+#else
+#define _slot_ 1
+#define PCMCIA_SLOT_MSG "SLOT_B"
+#endif
+
+#else
+#error m8xx_pcmcia: Bad configuration!
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+#define PCMCIA_MEM_WIN_BASE 0xe0000000 /* base address for memory window 0   */
+#define PCMCIA_MEM_WIN_SIZE 0x04000000 /* each memory window is 64 MByte     */
+#define PCMCIA_IO_WIN_BASE  _IO_BASE   /* base address for io window 0       */
+
+#define PCMCIA_SCHLVL PCMCIA_INTERRUPT /* Status Change Interrupt Level      */
+
+/* ------------------------------------------------------------------------- */
+
+/* 2.4.x and newer has this always in HZ */
+#define M8XX_BUSFREQ ((((bd_t *)&(__res))->bi_busfreq))
+
+static int pcmcia_schlvl = PCMCIA_SCHLVL;
+
+static spinlock_t events_lock = SPIN_LOCK_UNLOCKED;
+
+
+#define PCMCIA_SOCKET_KEY_5V 1
+#define PCMCIA_SOCKET_KEY_LV 2
+
+/* look up table for pgcrx registers */
+static u32 *m8xx_pgcrx[2] = {
+        &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcra,
+        &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pgcrb
+};
+
+/*
+ * This structure is used to address each window in the PCMCIA controller.
+ *
+ * Keep in mind that we assume that pcmcia_win[n+1] is mapped directly
+ * after pcmcia_win[n]...
+ */
+
+struct pcmcia_win {
+        u32     br;
+        u32     or;
+};
+
+/*
+ * For some reason the hardware guys decided to make both slots share
+ * some registers.
+ *
+ * Could someone invent object oriented hardware ?
+ *
+ * The macros are used to get the right bit from the registers.
+ * SLOT_A : slot = 0
+ * SLOT_B : slot = 1
+ */
+
+#define M8XX_PCMCIA_VS1(slot)      (0x80000000 >> (slot << 4))
+#define M8XX_PCMCIA_VS2(slot)      (0x40000000 >> (slot << 4))
+#define M8XX_PCMCIA_VS_MASK(slot)  (0xc0000000 >> (slot << 4))
+#define M8XX_PCMCIA_VS_SHIFT(slot) (30 - (slot << 4))
+
+#define M8XX_PCMCIA_WP(slot)       (0x20000000 >> (slot << 4))
+#define M8XX_PCMCIA_CD2(slot)      (0x10000000 >> (slot << 4))
+#define M8XX_PCMCIA_CD1(slot)      (0x08000000 >> (slot << 4))
+#define M8XX_PCMCIA_BVD2(slot)     (0x04000000 >> (slot << 4))
+#define M8XX_PCMCIA_BVD1(slot)     (0x02000000 >> (slot << 4))
+#define M8XX_PCMCIA_RDY(slot)      (0x01000000 >> (slot << 4))
+#define M8XX_PCMCIA_RDY_L(slot)    (0x00800000 >> (slot << 4))
+#define M8XX_PCMCIA_RDY_H(slot)    (0x00400000 >> (slot << 4))
+#define M8XX_PCMCIA_RDY_R(slot)    (0x00200000 >> (slot << 4))
+#define M8XX_PCMCIA_RDY_F(slot)    (0x00100000 >> (slot << 4))
+#define M8XX_PCMCIA_MASK(slot)     (0xFFFF0000 >> (slot << 4))
+
+#define M8XX_PCMCIA_POR_VALID    0x00000001
+#define M8XX_PCMCIA_POR_WRPROT   0x00000002
+#define M8XX_PCMCIA_POR_ATTRMEM  0x00000010
+#define M8XX_PCMCIA_POR_IO       0x00000018
+#define M8XX_PCMCIA_POR_16BIT    0x00000040
+
+#define M8XX_PGCRX(slot)  m8xx_pgcrx[slot]
+
+#define M8XX_PGCRX_CXOE    0x00000080
+#define M8XX_PGCRX_CXRESET 0x00000040
+
+/* we keep one lookup table per socket to check flags */
+
+#define PCMCIA_EVENTS_MAX 5  /* 4 max at a time + termination */
+
+struct event_table {
+        u32 regbit;
+        u32 eventbit;
+};
+
+struct socket_info {
+        void    (*handler)(void *info, u32 events);
+        void    *info;
+
+        u32 slot;
+
+        socket_state_t state;
+        struct pccard_mem_map mem_win[PCMCIA_MEM_WIN_NO];
+        struct pccard_io_map  io_win[PCMCIA_IO_WIN_NO];
+        struct event_table events[PCMCIA_EVENTS_MAX];
+        struct pcmcia_socket socket;
+};
+
+static struct socket_info socket[PCMCIA_SOCKETS_NO];
+
+/*
+ * Search this table to see if the windowsize is
+ * supported...
+ */
+
+#define M8XX_SIZES_NO 32
+
+static const u32 m8xx_size_to_gray[M8XX_SIZES_NO] =
+{
+        0x00000001, 0x00000002, 0x00000008, 0x00000004,
+        0x00000080, 0x00000040, 0x00000010, 0x00000020,
+        0x00008000, 0x00004000, 0x00001000, 0x00002000,
+        0x00000100, 0x00000200, 0x00000800, 0x00000400,
+
+        0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0x01000000, 0x02000000, 0xffffffff, 0x04000000,
+        0x00010000, 0x00020000, 0x00080000, 0x00040000,
+        0x00800000, 0x00400000, 0x00100000, 0x00200000
+};
+
+/* ------------------------------------------------------------------------- */
+
+static irqreturn_t m8xx_interrupt(int irq, void *dev, struct pt_regs *regs);
+
+#define PCMCIA_BMT_LIMIT (15*4)  /* Bus Monitor Timeout value */
+
+/* ------------------------------------------------------------------------- */
+/* board specific stuff:                                                     */
+/* voltage_set(), hardware_enable() and hardware_disable()                   */
+/* ------------------------------------------------------------------------- */
+/* RPX Boards from Embedded Planet                                           */
+
+#if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)
+
+/* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks.
+ * SYPCR is write once only, therefore must the slowest memory be faster
+ * than the bus monitor or we will get a machine check due to the bus timeout.
+ */
+
+#define PCMCIA_BOARD_MSG "RPX CLASSIC or RPX LITE"
+
+#undef PCMCIA_BMT_LIMIT
+#define PCMCIA_BMT_LIMIT (6*8)
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+        u32 reg = 0;
+
+        switch(vcc) {
+        case 0: break;
+        case 33:
+                reg |= BCSR1_PCVCTL4;
+                break;
+        case 50:
+                reg |= BCSR1_PCVCTL5;
+                break;
+        default:
+                return 1;
+        }
+
+        switch(vpp) {
+        case 0: break;
+        case 33:
+        case 50:
+                if(vcc == vpp)
+                        reg |= BCSR1_PCVCTL6;
+                else
+                        return 1;
+                break;
+        case 120:
+                reg |= BCSR1_PCVCTL7;
+        default:
+                return 1;
+        }
+
+        if(!((vcc == 50) || (vcc == 0)))
+                return 1;
+
+        /* first, turn off all power */
+
+        out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) & ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5 | BCSR1_PCVCTL6 | BCSR1_PCVCTL7));
+
+        /* enable new powersettings */
+
+        out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) | reg);
+
+        return 0;
+}
+
+#define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
+#define hardware_enable(_slot_)  /* No hardware to enable */
+#define hardware_disable(_slot_) /* No hardware to disable */
+
+#endif /* CONFIG_RPXCLASSIC */
+
+/* FADS Boards from Motorola                                               */
+
+#if defined(CONFIG_FADS)
+
+#define PCMCIA_BOARD_MSG "FADS"
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+        u32 reg = 0;
+
+        switch(vcc) {
+                case 0:
+                        break;
+                case 33:
+                        reg |= BCSR1_PCCVCC0;
+                        break;
+                case 50:
+                        reg |= BCSR1_PCCVCC1;
+                        break;
+                default:
+                        return 1;
+        }
+
+        switch(vpp) {
+                case 0:
+                        break;
+                case 33:
+                case 50:
+                        if(vcc == vpp)
+                                reg |= BCSR1_PCCVPP1;
+                        else
+                                return 1;
+                        break;
+                case 120:
+                        if ((vcc == 33) || (vcc == 50))
+                                reg |= BCSR1_PCCVPP0;
+                        else
+                                return 1;
+                default:
+                        return 1;
+        }
+
+        /* first, turn off all power */
+        out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) & ~(BCSR1_PCCVCC_MASK | BCSR1_PCCVPP_MASK));
+
+        /* enable new powersettings */
+        out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) | reg);
+
+        return 0;
+}
+
+#define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
+
+static void hardware_enable(int slot)
+{
+        out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) & ~BCSR1_PCCEN);
+}
+
+static void hardware_disable(int slot)
+{
+        out_be32(&((u32 *)BCSR1), in_be32(&((u32 *)BCSR1)) |  BCSR1_PCCEN);
+}
+
+#endif
+
+/* ------------------------------------------------------------------------- */
+/* Motorola MBX860                                                           */
+
+#if defined(CONFIG_MBX)
+
+#define PCMCIA_BOARD_MSG "MBX"
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+        u8 reg = 0;
+
+        switch(vcc) {
+                case 0:
+                        break;
+                case 33:
+                        reg |= CSR2_VCC_33;
+                        break;
+                case 50:
+                        reg |= CSR2_VCC_50;
+                        break;
+                default:
+                        return 1;
+        }
+
+        switch(vpp) {
+                case 0:
+                        break;
+                case 33:
+                case 50:
+                        if(vcc == vpp)
+                                reg |= CSR2_VPP_VCC;
+                        else
+                                return 1;
+                        break;
+                case 120:
+                        if ((vcc == 33) || (vcc == 50))
+                                reg |= CSR2_VPP_12;
+                        else
+                                return 1;
+                default:
+                        return 1;
+        }
+
+        /* first, turn off all power */
+        out_8(&((u8 *)MBX_CSR2_ADDR), in_8(&((u8 *)MBX_CSR2_ADDR)) & ~(CSR2_VCC_MASK | CSR2_VPP_MASK));
+
+        /* enable new powersettings */
+        out_8(&((u8 *)MBX_CSR2_ADDR), in_8(&((u8 *)MBX_CSR2_ADDR)) | reg);
+
+        return 0;
+}
+
+#define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V
+#define hardware_enable(_slot_)  /* No hardware to enable */
+#define hardware_disable(_slot_) /* No hardware to disable */
+
+#endif /* CONFIG_MBX */
+
+#if defined(CONFIG_PRxK)
+#include <asm/cpld.h>
+extern volatile fpga_pc_regs *fpga_pc;
+
+#define PCMCIA_BOARD_MSG "MPC855T"
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+        u8 reg = 0;
+        u8 regread;
+        cpld_regs *ccpld = get_cpld();
+
+        switch(vcc) {
+                case 0:
+                        break;
+                case 33:
+                        reg |= PCMCIA_VCC_33;
+                        break;
+                case 50:
+                        reg |= PCMCIA_VCC_50;
+                        break;
+                default:
+                        return 1;
+        }
+
+        switch(vpp) {
+                case 0:
+                        break;
+                case 33:
+                case 50:
+                        if(vcc == vpp)
+                                reg |= PCMCIA_VPP_VCC;
+                        else
+                                return 1;
+                        break;
+                case 120:
+                        if ((vcc == 33) || (vcc == 50))
+                                reg |= PCMCIA_VPP_12;
+                        else
+                                return 1;
+                default:
+                        return 1;
+        }
+
+        reg = reg >> (slot << 2);
+        regread = in_8(&ccpld->fpga_pc_ctl);
+        if (reg != (regread & ((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2)))) {
+                /* enable new powersettings */
+                regread = regread & ~((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2));
+                out_8(&ccpld->fpga_pc_ctl, reg | regread);
+                msleep(100);
+        }
+
+        return 0;
+}
+
+#define socket_get(_slot_) PCMCIA_SOCKET_KEY_LV
+#define hardware_enable(_slot_)  /* No hardware to enable */
+#define hardware_disable(_slot_) /* No hardware to disable */
+
+#endif /* CONFIG_PRxK */
+
+static void m8xx_shutdown(void)
+{
+        u32 m, i;
+        struct pcmcia_win *w;
+
+        for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
+                w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+
+                out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, M8XX_PCMCIA_MASK(i));
+                out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) & ~M8XX_PCMCIA_MASK(i));
+
+                /* turn off interrupt and disable CxOE */
+                out_be32(M8XX_PGCRX(i), M8XX_PGCRX_CXOE);
+
+                /* turn off memory windows */
+                for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
+                        out_be32(&w->or, 0); /* set to not valid */
+                        w++;
+                }
+
+                /* turn off voltage */
+                voltage_set(i, 0, 0);
+
+                /* disable external hardware */
+                hardware_disable(i);
+        }
+
+        free_irq(pcmcia_schlvl, NULL);
+}
+
+/* copied from tcic.c */
+
+static int m8xx_drv_suspend(struct device *dev, pm_message_t state, u32 level)
+{
+        int ret = 0;
+        if (level == SUSPEND_SAVE_STATE)
+                ret = pcmcia_socket_dev_suspend(dev, state);
+        return ret;
+}
+
+static int m8xx_drv_resume(struct device *dev, u32 level)
+{
+        int ret = 0;
+        if (level == RESUME_RESTORE_STATE)
+                ret = pcmcia_socket_dev_resume(dev);
+        return ret;
+}
+
+static struct device_driver m8xx_driver = {
+        .name = "m8xx-pcmcia",
+        .bus = &platform_bus_type,
+        .suspend = m8xx_drv_suspend,
+        .resume = m8xx_drv_resume,
+};
+
+static struct platform_device m8xx_device = {
+        .name = "m8xx-pcmcia",
+        .id = 0,
+};
+
+static u32 pending_events[PCMCIA_SOCKETS_NO];
+static spinlock_t pending_event_lock = SPIN_LOCK_UNLOCKED;
+
+static irqreturn_t m8xx_interrupt(int irq, void *dev, struct pt_regs *regs)
+{
+        struct socket_info *s;
+        struct event_table *e;
+        unsigned int i, events, pscr, pipr, per;
+
+        dprintk("Interrupt!\n");
+        /* get interrupt sources */
+
+        pscr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr);
+        pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
+        per = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per);
+
+        for(i = 0; i < PCMCIA_SOCKETS_NO; i++) {
+                s = &socket[i];
+                e = &s->events[0];
+                events = 0;
+
+                while(e->regbit) {
+                        if(pscr & e->regbit)
+                                events |= e->eventbit;
+
+                                e++;
+                }
+
+                /*
+                 * report only if both card detect signals are the same
+                 * not too nice done,
+                 * we depend on that CD2 is the bit to the left of CD1...
+                 */
+                if(events & SS_DETECT)
+                        if(((pipr & M8XX_PCMCIA_CD2(i)) >> 1) ^
+                                (pipr & M8XX_PCMCIA_CD1(i)))
+                        {
+                                events &= ~SS_DETECT;
+                        }
+
+#ifdef PCMCIA_GLITCHY_CD
+                /*
+                 * I've experienced CD problems with my ADS board.
+                 * We make an extra check to see if there was a
+                 * real change of Card detection.
+                 */
+
+                if((events & SS_DETECT) &&
+                   ((pipr &
+                     (M8XX_PCMCIA_CD2(i) | M8XX_PCMCIA_CD1(i))) == 0) &&
+                   (s->state.Vcc | s->state.Vpp)) {
+                        events &= ~SS_DETECT;
+                        /*printk( "CD glitch workaround - CD = 0x%08x!\n",
+                                (pipr & (M8XX_PCMCIA_CD2(i)
+                                         | M8XX_PCMCIA_CD1(i))));*/
+                }
+#endif
+
+                /* call the handler */
+
+                dprintk("slot %u: events = 0x%02x, pscr = 0x%08x, "
+                        "pipr = 0x%08x\n",
+                        i, events, pscr, pipr);
+
+                if(events) {
+                        spin_lock(&pending_event_lock);
+                        pending_events[i] |= events;
+                        spin_unlock(&pending_event_lock);
+                        /*
+                         * Turn off RDY_L bits in the PER mask on
+                         * CD interrupt receival.
+                         *
+                         * They can generate bad interrupts on the
+                         * ACS4,8,16,32.   - marcelo
+                         */
+                        per &= ~M8XX_PCMCIA_RDY_L(0);
+                        per &= ~M8XX_PCMCIA_RDY_L(1);
+
+                        out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, per);
+
+                        if (events)
+                                pcmcia_parse_events(&socket[i].socket, events);
+                }
+        }
+
+        /* clear the interrupt sources */
+        out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, pscr);
+
+        dprintk("Interrupt done.\n");
+
+        return IRQ_HANDLED;
+}
+
+static u32 m8xx_get_graycode(u32 size)
+{
+        u32 k;
+
+        for(k = 0; k < M8XX_SIZES_NO; k++)
+                if(m8xx_size_to_gray[k] == size)
+                        break;
+
+        if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1))
+                k = -1;
+
+        return k;
+}
+
+static u32 m8xx_get_speed(u32 ns, u32 is_io)
+{
+        u32 reg, clocks, psst, psl, psht;
+
+        if(!ns) {
+
+                /*
+                 * We get called with IO maps setup to 0ns
+                 * if not specified by the user.
+                 * They should be 255ns.
+                 */
+
+                if(is_io)
+                        ns = 255;
+                else
+                        ns = 100;  /* fast memory if 0 */
+        }
+
+        /*
+         * In PSST, PSL, PSHT fields we tell the controller
+         * timing parameters in CLKOUT clock cycles.
+         * CLKOUT is the same as GCLK2_50.
+         */
+
+/* how we want to adjust the timing - in percent */
+
+#define ADJ 180 /* 80 % longer accesstime - to be sure */
+
+        clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000;
+        clocks = (clocks * ADJ) / (100*1000);
+        if(clocks >= PCMCIA_BMT_LIMIT) {
+                printk( "Max access time limit reached\n");
+                clocks = PCMCIA_BMT_LIMIT-1;
+        }
+
+        psst = clocks / 7;          /* setup time */
+        psht = clocks / 7;          /* hold time */
+        psl  = (clocks * 5) / 7;    /* strobe length */
+
+        psst += clocks - (psst + psht + psl);
+
+        reg =  psst << 12;
+        reg |= psl  << 7;
+        reg |= psht << 16;
+
+        return reg;
+}
+
+static int m8xx_get_status(struct pcmcia_socket *sock, unsigned int *value)
+{
+        int lsock = container_of(sock, struct socket_info, socket)->slot;
+        struct socket_info *s = &socket[lsock];
+        unsigned int pipr, reg;
+
+        pipr = in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr);
+
+        *value  = ((pipr & (M8XX_PCMCIA_CD1(lsock)
+                            | M8XX_PCMCIA_CD2(lsock))) == 0) ? SS_DETECT : 0;
+        *value |= (pipr & M8XX_PCMCIA_WP(lsock)) ? SS_WRPROT : 0;
+
+        if (s->state.flags & SS_IOCARD)
+                *value |= (pipr & M8XX_PCMCIA_BVD1(lsock)) ? SS_STSCHG : 0;
+        else {
+                *value |= (pipr & M8XX_PCMCIA_RDY(lsock)) ? SS_READY : 0;
+                *value |= (pipr & M8XX_PCMCIA_BVD1(lsock)) ? SS_BATDEAD : 0;
+                *value |= (pipr & M8XX_PCMCIA_BVD2(lsock)) ? SS_BATWARN : 0;
+        }
+
+        if (s->state.Vcc | s->state.Vpp)
+                *value |= SS_POWERON;
+
+        /*
+         * Voltage detection:
+         * This driver only supports 16-Bit pc-cards.
+         * Cardbus is not handled here.
+         *
+         * To determine what voltage to use we must read the VS1 and VS2 pin.
+         * Depending on what socket type is present,
+         * different combinations mean different things.
+         *
+         * Card Key  Socket Key   VS1   VS2   Card         Vcc for CIS parse
+         *
+         * 5V        5V, LV*      NC    NC    5V only       5V (if available)
+         *
+         * 5V        5V, LV*      GND   NC    5 or 3.3V     as low as possible
+         *
+         * 5V        5V, LV*      GND   GND   5, 3.3, x.xV  as low as possible
+         *
+         * LV*       5V            -     -    shall not fit into socket
+         *
+         * LV*       LV*          GND   NC    3.3V only     3.3V
+         *
+         * LV*       LV*          NC    GND   x.xV          x.xV (if avail.)
+         *
+         * LV*       LV*          GND   GND   3.3 or x.xV   as low as possible
+         *
+         * *LV means Low Voltage
+         *
+         *
+         * That gives us the following table:
+         *
+         * Socket    VS1  VS2   Voltage
+         *
+         * 5V        NC   NC    5V
+         * 5V        NC   GND   none (should not be possible)
+         * 5V        GND  NC    >= 3.3V
+         * 5V        GND  GND   >= x.xV
+         *
+         * LV        NC   NC    5V   (if available)
+         * LV        NC   GND   x.xV (if available)
+         * LV        GND  NC    3.3V
+         * LV        GND  GND   >= x.xV
+         *
+         * So, how do I determine if I have a 5V or a LV
+         * socket on my board?  Look at the socket!
+         *
+         *
+         * Socket with 5V key:
+         * ++--------------------------------------------+
+         * ||                                            |
+         * ||                                           ||
+         * ||                                           ||
+         * |                                             |
+         * +---------------------------------------------+
+         *
+         * Socket with LV key:
+         * ++--------------------------------------------+
+         * ||                                            |
+         * |                                            ||
+         * |                                            ||
+         * |                                             |
+         * +---------------------------------------------+
+         *
+         *
+         * With other words - LV only cards does not fit
+         * into the 5V socket!
+         */
+
+        /* read out VS1 and VS2 */
+
+        reg = (pipr & M8XX_PCMCIA_VS_MASK(lsock))
+                >> M8XX_PCMCIA_VS_SHIFT(lsock);
+
+        if(socket_get(lsock) == PCMCIA_SOCKET_KEY_LV) {
+                switch(reg) {
+                case 1:
+                        *value |= SS_3VCARD;
+                        break; /* GND, NC - 3.3V only */
+                case 2:
+                        *value |= SS_XVCARD;
+                        break; /* NC. GND - x.xV only */
+                };
+        }
+
+        dprintk("GetStatus(%d) = %#2.2x\n", lsock, *value);
+        return 0;
+}
+
+static int m8xx_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+        int lsock = container_of(sock, struct socket_info, socket)->slot;
+        *state = socket[lsock].state; /* copy the whole structure */
+
+        dprintk("GetSocket(%d) = flags %#3.3x, Vcc %d, Vpp %d, "
+              "io_irq %d, csc_mask %#2.2x\n", lsock, state->flags,
+              state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
+        return 0;
+}
+
+static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+        int lsock = container_of(sock, struct socket_info, socket)->slot;
+        struct socket_info *s = &socket[lsock];
+        struct event_table *e;
+        unsigned int reg;
+        unsigned long flags;
+
+        dprintk( "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
+              "io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags,
+              state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
+
+        /* First, set voltage - bail out if invalid */
+        if(voltage_set(lsock, state->Vcc, state->Vpp))
+                return -EINVAL;
+
+        /* Take care of reset... */
+        if(state->flags & SS_RESET)
+                out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) |  M8XX_PGCRX_CXRESET); /* active high */
+        else
+                out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXRESET);
+
+        /* ... and output enable. */
+
+        /* The CxOE signal is connected to a 74541 on the ADS.
+           I guess most other boards used the ADS as a reference.
+           I tried to control the CxOE signal with SS_OUTPUT_ENA,
+           but the reset signal seems connected via the 541.
+           If the CxOE is left high are some signals tristated and
+           no pullups are present -> the cards act wierd.
+           So right now the buffers are enabled if the power is on. */
+
+        if(state->Vcc || state->Vpp)
+                out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXOE); /* active low */
+        else
+                out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXOE);
+
+        /*
+         * We'd better turn off interrupts before
+         * we mess with the events-table..
+         */
+
+        spin_lock_irqsave(&events_lock, flags);
+
+        /*
+         * Play around with the interrupt mask to be able to
+         * give the events the generic pcmcia driver wants us to.
+         */
+
+        e = &s->events[0];
+        reg = 0;
+
+        if(state->csc_mask & SS_DETECT) {
+                e->eventbit = SS_DETECT;
+                reg |= e->regbit = (M8XX_PCMCIA_CD2(lsock)
+                                    | M8XX_PCMCIA_CD1(lsock));
+                e++;
+        }
+        if(state->flags & SS_IOCARD) {
+                /*
+                 * I/O card
+                 */
+                if(state->csc_mask & SS_STSCHG) {
+                        e->eventbit = SS_STSCHG;
+                        reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock);
+                        e++;
+                }
+                /*
+                 * If io_irq is non-zero we should enable irq.
+                 */
+                if(state->io_irq) {
+                        out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | mk_int_int_mask(state->io_irq) << 24);
+                        /*
+                         * Strange thing here:
+                         * The manual does not tell us which interrupt
+                         * the sources generate.
+                         * Anyhow, I found out that RDY_L generates IREQLVL.
+                         *
+                         * We use level triggerd interrupts, and they don't
+                         * have to be cleared in PSCR in the interrupt handler.
+                         */
+                        reg |= M8XX_PCMCIA_RDY_L(lsock);
+                }
+                else
+                        out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & 0x00ffffff);
+        }
+        else {
+                /*
+                 * Memory card
+                 */
+                if(state->csc_mask & SS_BATDEAD) {
+                        e->eventbit = SS_BATDEAD;
+                        reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock);
+                        e++;
+                }
+                if(state->csc_mask & SS_BATWARN) {
+                        e->eventbit = SS_BATWARN;
+                        reg |= e->regbit = M8XX_PCMCIA_BVD2(lsock);
+                        e++;
+                }
+                /* What should I trigger on - low/high,raise,fall? */
+                if(state->csc_mask & SS_READY) {
+                        e->eventbit = SS_READY;
+                        reg |= e->regbit = 0; //??
+                        e++;
+                }
+        }
+
+        e->regbit = 0;  /* terminate list */
+
+        /*
+         * Clear the status changed .
+         * Port A and Port B share the same port.
+         * Writing ones will clear the bits.
+         */
+
+        out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr, reg);
+
+        /*
+         * Write the mask.
+         * Port A and Port B share the same port.
+         * Need for read-modify-write.
+         * Ones will enable the interrupt.
+         */
+
+        /*
+          reg |= ((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per
+          & M8XX_PCMCIA_MASK(lsock);
+        */
+
+        reg |= in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
+                (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1));
+
+        out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per, reg);
+
+        spin_unlock_irqrestore(&events_lock, flags);
+
+        /* copy the struct and modify the copy */
+
+        s->state = *state;
+
+        return 0;
+}
+
+static int m8xx_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
+{
+        int lsock = container_of(sock, struct socket_info, socket)->slot;
+
+        struct socket_info *s = &socket[lsock];
+        struct pcmcia_win *w;
+        unsigned int reg, winnr;
+
+#define M8XX_SIZE (io->stop - io->start + 1)
+#define M8XX_BASE (PCMCIA_IO_WIN_BASE + io->start)
+
+        dprintk( "SetIOMap(%d, %d, %#2.2x, %d ns, "
+              "%#4.4x-%#4.4x)\n", lsock, io->map, io->flags,
+              io->speed, io->start, io->stop);
+
+        if ((io->map >= PCMCIA_IO_WIN_NO) || (io->start > 0xffff)
+            || (io->stop > 0xffff) || (io->stop < io->start))
+                return -EINVAL;
+
+        if((reg = m8xx_get_graycode(M8XX_SIZE)) == -1)
+                return -EINVAL;
+
+        if(io->flags & MAP_ACTIVE) {
+
+                dprintk( "io->flags & MAP_ACTIVE\n");
+
+                winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO)
+                        + (lsock * PCMCIA_IO_WIN_NO) + io->map;
+
+                /* setup registers */
+
+                w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+                w += winnr;
+
+                out_be32(&w->or, 0); /* turn off window first */
+                out_be32(&w->br, M8XX_BASE);
+
+                reg <<= 27;
+                reg |= M8XX_PCMCIA_POR_IO |(lsock << 2);
+
+                reg |= m8xx_get_speed(io->speed, 1);
+
+                if(io->flags & MAP_WRPROT)
+                        reg |= M8XX_PCMCIA_POR_WRPROT;
+
+                /*if(io->flags & (MAP_16BIT | MAP_AUTOSZ))*/
+                if(io->flags & MAP_16BIT)
+                        reg |= M8XX_PCMCIA_POR_16BIT;
+
+                if(io->flags & MAP_ACTIVE)
+                        reg |= M8XX_PCMCIA_POR_VALID;
+
+                out_be32(&w->or, reg);
+
+                dprintk("Socket %u: Mapped io window %u at %#8.8x, "
+                      "OR = %#8.8x.\n", lsock, io->map, w->br, w->or);
+        } else {
+                /* shutdown IO window */
+                winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO)
+                        + (lsock * PCMCIA_IO_WIN_NO) + io->map;
+
+                /* setup registers */
+
+                w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+                w += winnr;
+
+                out_be32(&w->or, 0); /* turn off window */
+                out_be32(&w->br, 0); /* turn off base address */
+
+                dprintk("Socket %u: Unmapped io window %u at %#8.8x, "
+                        "OR = %#8.8x.\n", lsock, io->map, w->br, w->or);
+        }
+
+        /* copy the struct and modify the copy */
+        s->io_win[io->map] = *io;
+        s->io_win[io->map].flags &= (MAP_WRPROT
+                                     | MAP_16BIT
+                                     | MAP_ACTIVE);
+        dprintk("SetIOMap exit\n");
+
+        return 0;
+}
+
+static int m8xx_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
+{
+        int lsock = container_of(sock, struct socket_info, socket)->slot;
+        struct socket_info *s = &socket[lsock];
+        struct pcmcia_win *w;
+        struct pccard_mem_map *old;
+        unsigned int reg, winnr;
+
+        dprintk( "SetMemMap(%d, %d, %#2.2x, %d ns, "
+              "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
+              mem->speed, mem->static_start, mem->card_start);
+
+        if ((mem->map >= PCMCIA_MEM_WIN_NO)
+//          || ((mem->s) >= PCMCIA_MEM_WIN_SIZE)
+            || (mem->card_start >= 0x04000000)
+            || (mem->static_start & 0xfff)                /* 4KByte resolution */
+            || (mem->card_start & 0xfff))
+                return -EINVAL;
+
+        if((reg = m8xx_get_graycode(PCMCIA_MEM_WIN_SIZE)) == -1) {
+                printk( "Cannot set size to 0x%08x.\n", PCMCIA_MEM_WIN_SIZE);
+                return -EINVAL;
+        }
+        reg <<= 27;
+
+        winnr = (lsock * PCMCIA_MEM_WIN_NO) + mem->map;
+
+        /* Setup the window in the pcmcia controller */
+
+        w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+        w += winnr;
+
+        reg |= lsock << 2;
+
+        reg |= m8xx_get_speed(mem->speed, 0);
+
+        if(mem->flags & MAP_ATTRIB)
+                reg |=  M8XX_PCMCIA_POR_ATTRMEM;
+
+        if(mem->flags & MAP_WRPROT)
+                reg |= M8XX_PCMCIA_POR_WRPROT;
+
+        if(mem->flags & MAP_16BIT)
+                reg |= M8XX_PCMCIA_POR_16BIT;
+
+        if(mem->flags & MAP_ACTIVE)
+                reg |= M8XX_PCMCIA_POR_VALID;
+
+        out_be32(&w->or, reg);
+
+        dprintk("Socket %u: Mapped memory window %u at %#8.8x, "
+              "OR = %#8.8x.\n", lsock, mem->map, w->br, w->or);
+
+        if(mem->flags & MAP_ACTIVE) {
+                /* get the new base address */
+                mem->static_start = PCMCIA_MEM_WIN_BASE +
+                        (PCMCIA_MEM_WIN_SIZE * winnr)
+                        + mem->card_start;
+        }
+
+        dprintk("SetMemMap(%d, %d, %#2.2x, %d ns, "
+              "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags,
+              mem->speed, mem->static_start, mem->card_start);
+
+        /* copy the struct and modify the copy */
+
+        old = &s->mem_win[mem->map];
+
+        *old = *mem;
+        old->flags &= (MAP_ATTRIB
+                       | MAP_WRPROT
+                       | MAP_16BIT
+                       | MAP_ACTIVE);
+
+        return 0;
+}
+
+static int m8xx_sock_init(struct pcmcia_socket *sock)
+{
+        int i;
+        pccard_io_map io = { 0, 0, 0, 0, 1 };
+        pccard_mem_map mem = { 0, 0, 0, 0, 0, 0 };
+
+        dprintk( "sock_init(%d)\n", s);
+
+        m8xx_set_socket(sock, &dead_socket);
+        for (i = 0; i < PCMCIA_IO_WIN_NO; i++) {
+                io.map = i;
+                m8xx_set_io_map(sock, &io);
+        }
+        for (i = 0; i < PCMCIA_MEM_WIN_NO; i++) {
+                mem.map = i;
+                m8xx_set_mem_map(sock, &mem);
+        }
+
+        return 0;
+
+}
+
+static int m8xx_suspend(struct pcmcia_socket *sock)
+{
+        return m8xx_set_socket(sock, &dead_socket);
+}
+
+static struct pccard_operations m8xx_services = {
+        .init   = m8xx_sock_init,
+        .suspend = m8xx_suspend,
+        .get_status = m8xx_get_status,
+        .get_socket = m8xx_get_socket,
+        .set_socket = m8xx_set_socket,
+        .set_io_map = m8xx_set_io_map,
+        .set_mem_map = m8xx_set_mem_map,
+};
+
+static int __init m8xx_init(void)
+{
+        struct pcmcia_win *w;
+        unsigned int i,m;
+
+        pcmcia_info("%s\n", version);
+
+        if (driver_register(&m8xx_driver))
+                return -1;
+
+        pcmcia_info(PCMCIA_BOARD_MSG " using " PCMCIA_SLOT_MSG
+                    " with IRQ %u.\n", pcmcia_schlvl);
+
+        /* Configure Status change interrupt */
+
+        if(request_irq(pcmcia_schlvl, m8xx_interrupt, 0,
+                          "m8xx_pcmcia", NULL)) {
+                pcmcia_error("Cannot allocate IRQ %u for SCHLVL!\n",
+                             pcmcia_schlvl);
+                return -1;
+        }
+
+        w = (void *) &((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0;
+
+        out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr,
+                M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1));
+
+        out_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per,
+                in_be32(&((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_per) &
+                ~(M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1)));
+
+/* connect interrupt and disable CxOE */
+
+        out_be32(M8XX_PGCRX(0), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
+        out_be32(M8XX_PGCRX(1), M8XX_PGCRX_CXOE | (mk_int_int_mask(pcmcia_schlvl) << 16));
+
+/* intialize the fixed memory windows */
+
+        for(i = 0; i < PCMCIA_SOCKETS_NO; i++){
+                for(m = 0; m < PCMCIA_MEM_WIN_NO; m++) {
+                        out_be32(&w->br, PCMCIA_MEM_WIN_BASE +
+                                (PCMCIA_MEM_WIN_SIZE
+                                 * (m + i * PCMCIA_MEM_WIN_NO)));
+
+                        out_be32(&w->or, 0);  /* set to not valid */
+
+                        w++;
+                }
+        }
+
+/* turn off voltage */
+        voltage_set(0, 0, 0);
+        voltage_set(1, 0, 0);
+
+/* Enable external hardware */
+        hardware_enable(0);
+        hardware_enable(1);
+
+        platform_device_register(&m8xx_device);
+
+        for (i = 0 ; i < PCMCIA_SOCKETS_NO; i++) {
+                socket[i].slot = i;
+                socket[i].socket.owner = THIS_MODULE;
+                socket[i].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN | SS_CAP_STATIC_MAP;
+                socket[i].socket.irq_mask = 0x000;
+                socket[i].socket.map_size = 0x1000;
+                socket[i].socket.io_offset = 0;
+                socket[i].socket.pci_irq = i  ? 7 : 9;
+                socket[i].socket.ops = &m8xx_services;
+                socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+                socket[i].socket.cb_dev = NULL;
+                socket[i].socket.dev.dev = &m8xx_device.dev;
+        }
+
+        for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
+                pcmcia_register_socket(&socket[i].socket);
+
+        return 0;
+}
+
+static void __exit m8xx_exit(void)
+{
+        int i;
+
+        for (i = 0; i < PCMCIA_SOCKETS_NO; i++)
+                pcmcia_unregister_socket(&socket[i].socket);
+
+        m8xx_shutdown();
+
+        platform_device_unregister(&m8xx_device);
+        driver_unregister(&m8xx_driver);
+}
+
+module_init(m8xx_init);
+module_exit(m8xx_exit);
diff --git a/drivers/pcmcia/pxa2xx_sharpsl.c b/drivers/pcmcia/pxa2xx_sharpsl.c
index a1178a600e3c..bd924336a49f 100644
--- a/drivers/pcmcia/pxa2xx_sharpsl.c
+++ b/drivers/pcmcia/pxa2xx_sharpsl.c
@@ -18,10 +18,15 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 
+#include <asm/mach-types.h>
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/hardware/scoop.h>
-#include <asm/arch/pxa-regs.h>
+#ifdef CONFIG_SA1100_COLLIE
+#include <asm/arch-sa1100/collie.h>
+#else
+#include <asm/arch-pxa/pxa-regs.h>
+#endif
 
 #include "soc_common.h"
 
@@ -38,6 +43,7 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
         int ret;
 
+#ifndef CONFIG_SA1100_COLLIE
         /*
          * Setup default state of GPIO outputs
          * before we enable them as outputs.
@@ -60,6 +66,7 @@ static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
         pxa_gpio_mode(GPIO55_nPREG_MD);
         pxa_gpio_mode(GPIO56_nPWAIT_MD);
         pxa_gpio_mode(GPIO57_nIOIS16_MD);
+#endif
 
         /* Register interrupts */
         if (scoop_devs[skt->nr].cd_irq >= 0) {
@@ -213,12 +220,20 @@ static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
         write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_IMR, 0x00C0);
         write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_MCR, 0x0101);
         scoop_devs[skt->nr].keep_vs = NO_KEEP_VS;
+
+        if (machine_is_collie())
+                /* We need to disable SS_OUTPUT_ENA here. */
+                write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR, read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR) & ~0x0080);
 }
 
 static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
 {
         /* CF_BUS_OFF */
         sharpsl_pcmcia_init_reset(&scoop_devs[skt->nr]);
+
+        if (machine_is_collie())
+                /* We need to disable SS_OUTPUT_ENA here. */
+                write_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR, read_scoop_reg(scoop_devs[skt->nr].dev, SCOOP_CPR) & ~0x0080);
 }
 
 static struct pcmcia_low_level sharpsl_pcmcia_ops = {
@@ -235,6 +250,19 @@ static struct pcmcia_low_level sharpsl_pcmcia_ops = {
 
 static struct platform_device *sharpsl_pcmcia_device;
 
+#ifdef CONFIG_SA1100_COLLIE
+int __init pcmcia_collie_init(struct device *dev)
+{
+       int ret = -ENODEV;
+
+       if (machine_is_collie())
+               ret = sa11xx_drv_pcmcia_probe(dev, &sharpsl_pcmcia_ops, 0, 1);
+
+       return ret;
+}
+
+#else
+
 static int __init sharpsl_pcmcia_init(void)
 {
         int ret;
@@ -269,6 +297,7 @@ static void __exit sharpsl_pcmcia_exit(void)
 
 fs_initcall(sharpsl_pcmcia_init);
 module_exit(sharpsl_pcmcia_exit);
+#endif
 
 MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support");
 MODULE_LICENSE("GPL");
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index fc87e7e2b6b8..00960a379b9c 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -779,7 +779,7 @@ static int nonstatic_autoadd_resources(struct pcmcia_socket *s)
         if (!s->cb_dev || !s->cb_dev->bus)
                 return -ENODEV;
 
-#if defined(CONFIG_X86) || defined(CONFIG_X86_64)
+#if defined(CONFIG_X86)
         /* If this is the root bus, the risk of hitting
          * some strange system devices which aren't protected
          * by either ACPI resource tables or properly requested
diff --git a/drivers/pcmcia/sa1100_generic.c b/drivers/pcmcia/sa1100_generic.c
index b768fa81f043..acf60ffc8a12 100644
--- a/drivers/pcmcia/sa1100_generic.c
+++ b/drivers/pcmcia/sa1100_generic.c
@@ -38,8 +38,12 @@
 #include <pcmcia/cs.h>
 #include <pcmcia/ss.h>
 
+#include <asm/hardware/scoop.h>
+
 #include "sa1100_generic.h"
 
+int __init pcmcia_collie_init(struct device *dev);
+
 static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = {
 #ifdef CONFIG_SA1100_ASSABET
         pcmcia_assabet_init,
@@ -56,6 +60,9 @@ static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = {
 #ifdef CONFIG_SA1100_SIMPAD
         pcmcia_simpad_init,
 #endif
+#ifdef CONFIG_SA1100_COLLIE
+       pcmcia_collie_init,
+#endif
 };
 
 static int sa11x0_drv_pcmcia_probe(struct device *dev)
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index 94442ffd4aed..cbb2749db178 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -12,6 +12,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/pnp.h>
+#include <linux/slab.h>
+#include <linux/bitmap.h>
 #include "base.h"
 
 DECLARE_MUTEX(pnp_res_mutex);
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
index b0ca65b68645..5e38cd7335f7 100644
--- a/drivers/pnp/pnpbios/rsparser.c
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -7,6 +7,8 @@
 #include <linux/ctype.h>
 #include <linux/pnp.h>
 #include <linux/pnpbios.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #ifdef CONFIG_PCI
 #include <linux/pci.h>
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index fc7a213e591f..c570a9f6ce9c 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -213,6 +213,9 @@ con3270_update(struct con3270 *cp)
         struct string *s, *n;
         int rc;
 
+        if (cp->view.dev)
+                raw3270_activate_view(&cp->view);
+
         wrq = xchg(&cp->write, 0);
         if (!wrq) {
                 con3270_set_timer(cp, 1);
@@ -489,8 +492,6 @@ con3270_write(struct console *co, const char *str, unsigned int count)
         unsigned char c;
 
         cp = condev;
-        if (cp->view.dev)
-                raw3270_activate_view(&cp->view);
         spin_lock_irqsave(&cp->view.lock, flags);
         while (count-- > 0) {
                 c = *str++;
@@ -620,7 +621,7 @@ con3270_init(void)
                      (void (*)(unsigned long)) con3270_read_tasklet,
                      (unsigned long) condev->read);
 
-        raw3270_add_view(&condev->view, &con3270_fn, 0);
+        raw3270_add_view(&condev->view, &con3270_fn, 1);
 
         INIT_LIST_HEAD(&condev->freemem);
         for (i = 0; i < CON3270_STRING_PAGES; i++) {
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 60afcdcf91c2..735a7fcdeff5 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -33,8 +33,11 @@ struct fs3270 {
         int read_command;               /* ccw command to use for reads. */
         int write_command;              /* ccw command to use for writes. */
         int attention;                  /* Got attention. */
-        struct raw3270_request *clear;  /* single clear request. */
-        wait_queue_head_t attn_wait;    /* Attention wait queue. */
+        int active;                     /* Fullscreen view is active. */
+        struct raw3270_request *init;   /* single init request. */
+        wait_queue_head_t wait;         /* Init & attention wait queue. */
+        struct idal_buffer *rdbuf;      /* full-screen-deactivate buffer */
+        size_t rdbuf_size;              /* size of data returned by RDBUF */
 };
 
 static void
@@ -43,58 +46,172 @@ fs3270_wake_up(struct raw3270_request *rq, void *data)
         wake_up((wait_queue_head_t *) data);
 }
 
+static inline int
+fs3270_working(struct fs3270 *fp)
+{
+        /*
+         * The fullscreen view is in working order if the view
+         * has been activated AND the initial request is finished.
+         */
+        return fp->active && raw3270_request_final(fp->init);
+}
+
 static int
 fs3270_do_io(struct raw3270_view *view, struct raw3270_request *rq)
 {
-        wait_queue_head_t wq;
+        struct fs3270 *fp;
         int rc;
 
-        init_waitqueue_head(&wq);
+        fp = (struct fs3270 *) view;
         rq->callback = fs3270_wake_up;
-        rq->callback_data = &wq;
-        rc = raw3270_start(view, rq);
-        if (rc)
-                return rc;
-        /* Started sucessfully. Now wait for completion. */
-        wait_event(wq, raw3270_request_final(rq));
-        return rq->rc;
+        rq->callback_data = &fp->wait;
+
+        do {
+                if (!fs3270_working(fp)) {
+                        /* Fullscreen view isn't ready yet. */
+                        rc = wait_event_interruptible(fp->wait,
+                                                      fs3270_working(fp));
+                        if (rc != 0)
+                                break;
+                }
+                rc = raw3270_start(view, rq);
+                if (rc == 0) {
+                        /* Started sucessfully. Now wait for completion. */
+                        wait_event(fp->wait, raw3270_request_final(rq));
+                }
+        } while (rc == -EACCES);
+        return rc;
 }
 
+/*
+ * Switch to the fullscreen view.
+ */
 static void
 fs3270_reset_callback(struct raw3270_request *rq, void *data)
 {
+        struct fs3270 *fp;
+
+        fp = (struct fs3270 *) rq->view;
         raw3270_request_reset(rq);
+        wake_up(&fp->wait);
+}
+
+static void
+fs3270_restore_callback(struct raw3270_request *rq, void *data)
+{
+        struct fs3270 *fp;
+
+        fp = (struct fs3270 *) rq->view;
+        if (rq->rc != 0 || rq->rescnt != 0) {
+                if (fp->fs_pid)
+                        kill_proc(fp->fs_pid, SIGHUP, 1);
+        }
+        fp->rdbuf_size = 0;
+        raw3270_request_reset(rq);
+        wake_up(&fp->wait);
 }
 
-/*
- * Switch to the fullscreen view.
- */
 static int
 fs3270_activate(struct raw3270_view *view)
 {
         struct fs3270 *fp;
+        char *cp;
+        int rc;
 
         fp = (struct fs3270 *) view;
-        raw3270_request_set_cmd(fp->clear, TC_EWRITEA);
-        fp->clear->callback = fs3270_reset_callback;
-        return raw3270_start(view, fp->clear);
+
+        /* If an old init command is still running just return. */
+        if (!raw3270_request_final(fp->init))
+                return 0;
+
+        if (fp->rdbuf_size == 0) {
+                /* No saved buffer. Just clear the screen. */
+                raw3270_request_set_cmd(fp->init, TC_EWRITEA);
+                fp->init->callback = fs3270_reset_callback;
+        } else {
+                /* Restore fullscreen buffer saved by fs3270_deactivate. */
+                raw3270_request_set_cmd(fp->init, TC_EWRITEA);
+                raw3270_request_set_idal(fp->init, fp->rdbuf);
+                fp->init->ccw.count = fp->rdbuf_size;
+                cp = fp->rdbuf->data[0];
+                cp[0] = TW_KR;
+                cp[1] = TO_SBA;
+                cp[2] = cp[6];
+                cp[3] = cp[7];
+                cp[4] = TO_IC;
+                cp[5] = TO_SBA;
+                cp[6] = 0x40;
+                cp[7] = 0x40;
+                fp->init->rescnt = 0;
+                fp->init->callback = fs3270_restore_callback;
+        }
+        rc = fp->init->rc = raw3270_start_locked(view, fp->init);
+        if (rc)
+                fp->init->callback(fp->init, NULL);
+        else
+                fp->active = 1;
+        return rc;
 }
 
 /*
  * Shutdown fullscreen view.
  */
 static void
+fs3270_save_callback(struct raw3270_request *rq, void *data)
+{
+        struct fs3270 *fp;
+
+        fp = (struct fs3270 *) rq->view;
+
+        /* Correct idal buffer element 0 address. */
+        fp->rdbuf->data[0] -= 5;
+        fp->rdbuf->size += 5;
+
+        /*
+         * If the rdbuf command failed or the idal buffer is
+         * to small for the amount of data returned by the
+         * rdbuf command, then we have no choice but to send
+         * a SIGHUP to the application.
+         */
+        if (rq->rc != 0 || rq->rescnt == 0) {
+                if (fp->fs_pid)
+                        kill_proc(fp->fs_pid, SIGHUP, 1);
+                fp->rdbuf_size = 0;
+        } else
+                fp->rdbuf_size = fp->rdbuf->size - rq->rescnt;
+        raw3270_request_reset(rq);
+        wake_up(&fp->wait);
+}
+
+static void
 fs3270_deactivate(struct raw3270_view *view)
 {
-        // FIXME: is this a good idea? The user program using fullscreen 3270
-        // will die just because a console message appeared. On the other
-        // hand the fullscreen device is unoperational now.
         struct fs3270 *fp;
 
         fp = (struct fs3270 *) view;
-        if (fp->fs_pid != 0)
-                kill_proc(fp->fs_pid, SIGHUP, 1);
-        fp->fs_pid = 0;
+        fp->active = 0;
+
+        /* If an old init command is still running just return. */
+        if (!raw3270_request_final(fp->init))
+                return;
+
+        /* Prepare read-buffer request. */
+        raw3270_request_set_cmd(fp->init, TC_RDBUF);
+        /*
+         * Hackish: skip first 5 bytes of the idal buffer to make
+         * room for the TW_KR/TO_SBA/<address>/<address>/TO_IC sequence
+         * in the activation command.
+         */
+        fp->rdbuf->data[0] += 5;
+        fp->rdbuf->size -= 5;
+        raw3270_request_set_idal(fp->init, fp->rdbuf);
+        fp->init->rescnt = 0;
+        fp->init->callback = fs3270_save_callback;
+
+        /* Start I/O to read in the 3270 buffer. */
+        fp->init->rc = raw3270_start_locked(view, fp->init);
+        if (fp->init->rc)
+                fp->init->callback(fp->init, NULL);
 }
 
 static int
@@ -103,7 +220,7 @@ fs3270_irq(struct fs3270 *fp, struct raw3270_request *rq, struct irb *irb)
         /* Handle ATTN. Set indication and wake waiters for attention. */
         if (irb->scsw.dstat & DEV_STAT_ATTENTION) {
                 fp->attention = 1;
-                wake_up(&fp->attn_wait);
+                wake_up(&fp->wait);
         }
 
         if (rq) {
@@ -125,7 +242,7 @@ fs3270_read(struct file *filp, char *data, size_t count, loff_t *off)
         struct fs3270 *fp;
         struct raw3270_request *rq;
         struct idal_buffer *ib;
-        int rc;
+        ssize_t rc;
         
         if (count == 0 || count > 65535)
                 return -EINVAL;
@@ -133,7 +250,7 @@ fs3270_read(struct file *filp, char *data, size_t count, loff_t *off)
         if (!fp)
                 return -ENODEV;
         ib = idal_buffer_alloc(count, 0);
-        if (!ib)
+        if (IS_ERR(ib))
                 return -ENOMEM;
         rq = raw3270_request_alloc(0);
         if (!IS_ERR(rq)) {
@@ -141,10 +258,19 @@ fs3270_read(struct file *filp, char *data, size_t count, loff_t *off)
                         fp->read_command = 6;
                 raw3270_request_set_cmd(rq, fp->read_command ? : 2);
                 raw3270_request_set_idal(rq, ib);
-                wait_event(fp->attn_wait, fp->attention);
-                rc = fs3270_do_io(&fp->view, rq);
-                if (rc == 0 && idal_buffer_to_user(ib, data, count))
-                        rc = -EFAULT;
+                rc = wait_event_interruptible(fp->wait, fp->attention);
+                fp->attention = 0;
+                if (rc == 0) {
+                        rc = fs3270_do_io(&fp->view, rq);
+                        if (rc == 0) {
+                                count -= rq->rescnt;
+                                if (idal_buffer_to_user(ib, data, count) != 0)
+                                        rc = -EFAULT;
+                                else
+                                        rc = count;
+
+                        }
+                }
                 raw3270_request_free(rq);
         } else
                 rc = PTR_ERR(rq);
@@ -162,13 +288,13 @@ fs3270_write(struct file *filp, const char *data, size_t count, loff_t *off)
         struct raw3270_request *rq;
         struct idal_buffer *ib;
         int write_command;
-        int rc;
+        ssize_t rc;
 
         fp = filp->private_data;
         if (!fp)
                 return -ENODEV;
         ib = idal_buffer_alloc(count, 0);
-        if (!ib)
+        if (IS_ERR(ib))
                 return -ENOMEM;
         rq = raw3270_request_alloc(0);
         if (!IS_ERR(rq)) {
@@ -179,6 +305,8 @@ fs3270_write(struct file *filp, const char *data, size_t count, loff_t *off)
                         raw3270_request_set_cmd(rq, write_command);
                         raw3270_request_set_idal(rq, ib);
                         rc = fs3270_do_io(&fp->view, rq);
+                        if (rc == 0)
+                                rc = count - rq->rescnt;
                 } else
                         rc = -EFAULT;
                 raw3270_request_free(rq);
@@ -232,7 +360,7 @@ fs3270_ioctl(struct inode *inode, struct file *filp,
 }
 
 /*
- * Allocate tty3270 structure.
+ * Allocate fs3270 structure.
  */
 static struct fs3270 *
 fs3270_alloc_view(void)
@@ -243,8 +371,8 @@ fs3270_alloc_view(void)
         if (!fp)
                 return ERR_PTR(-ENOMEM);
         memset(fp, 0, sizeof(struct fs3270));
-        fp->clear = raw3270_request_alloc(0);
-        if (!IS_ERR(fp->clear)) {
+        fp->init = raw3270_request_alloc(0);
+        if (IS_ERR(fp->init)) {
                 kfree(fp);
                 return ERR_PTR(-ENOMEM);
         }
@@ -252,12 +380,17 @@ fs3270_alloc_view(void)
 }
 
 /*
- * Free tty3270 structure.
+ * Free fs3270 structure.
  */
 static void
 fs3270_free_view(struct raw3270_view *view)
 {
-        raw3270_request_free(((struct fs3270 *) view)->clear);
+        struct fs3270 *fp;
+
+        fp = (struct fs3270 *) view;
+        if (fp->rdbuf)
+                idal_buffer_free(fp->rdbuf);
+        raw3270_request_free(((struct fs3270 *) view)->init);
         kfree(view);
 }
 
@@ -285,11 +418,20 @@ static int
 fs3270_open(struct inode *inode, struct file *filp)
 {
         struct fs3270 *fp;
+        struct idal_buffer *ib;
         int minor, rc;
 
         if (imajor(filp->f_dentry->d_inode) != IBM_FS3270_MAJOR)
                 return -ENODEV;
         minor = iminor(filp->f_dentry->d_inode);
+        /* Check for minor 0 multiplexer. */
+        if (minor == 0) {
+                if (!current->signal->tty)
+                        return -ENODEV;
+                if (current->signal->tty->driver->major != IBM_TTY3270_MAJOR)
+                        return -ENODEV;
+                minor = current->signal->tty->index + RAW3270_FIRSTMINOR;
+        }
         /* Check if some other program is already using fullscreen mode. */
         fp = (struct fs3270 *) raw3270_find_view(&fs3270_fn, minor);
         if (!IS_ERR(fp)) {
@@ -301,7 +443,7 @@ fs3270_open(struct inode *inode, struct file *filp)
         if (IS_ERR(fp))
                 return PTR_ERR(fp);
 
-        init_waitqueue_head(&fp->attn_wait);
+        init_waitqueue_head(&fp->wait);
         fp->fs_pid = current->pid;
         rc = raw3270_add_view(&fp->view, &fs3270_fn, minor);
         if (rc) {
@@ -309,8 +451,18 @@ fs3270_open(struct inode *inode, struct file *filp)
                 return rc;
         }
 
+        /* Allocate idal-buffer. */
+        ib = idal_buffer_alloc(2*fp->view.rows*fp->view.cols + 5, 0);
+        if (IS_ERR(ib)) {
+                raw3270_put_view(&fp->view);
+                raw3270_del_view(&fp->view);
+                return PTR_ERR(fp);
+        }
+        fp->rdbuf = ib;
+
         rc = raw3270_activate_view(&fp->view);
         if (rc) {
+                raw3270_put_view(&fp->view);
                 raw3270_del_view(&fp->view);
                 return rc;
         }
@@ -329,8 +481,12 @@ fs3270_close(struct inode *inode, struct file *filp)
 
         fp = filp->private_data;
         filp->private_data = 0;
-        if (fp)
+        if (fp) {
+                fp->fs_pid = 0;
+                raw3270_reset(&fp->view);
+                raw3270_put_view(&fp->view);
                 raw3270_del_view(&fp->view);
+        }
         return 0;
 }
 
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 328d9cbc56a3..d66946443dfc 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -25,6 +25,12 @@
 
 #include "raw3270.h"
 
+#include <linux/major.h>
+#include <linux/kdev_t.h>
+#include <linux/device.h>
+
+struct class *class3270;
+
 /* The main 3270 data structure. */
 struct raw3270 {
         struct list_head list;
@@ -41,6 +47,8 @@ struct raw3270 {
         struct timer_list timer;        /* Device timer. */
 
         unsigned char *ascebc;          /* ascii -> ebcdic table */
+        struct class_device *clttydev;  /* 3270-class tty device ptr */
+        struct class_device *cltubdev;  /* 3270-class tub device ptr */
 };
 
 /* raw3270->flags */
@@ -317,6 +325,22 @@ raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
 }
 
 int
+raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)
+{
+        struct raw3270 *rp;
+        int rc;
+
+        rp = view->dev;
+        if (!rp || rp->view != view)
+                rc = -EACCES;
+        else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
+                rc = -ENODEV;
+        else
+                rc =  __raw3270_start(rp, view, rq);
+        return rc;
+}
+
+int
 raw3270_start_irq(struct raw3270_view *view, struct raw3270_request *rq)
 {
         struct raw3270 *rp;
@@ -744,6 +768,22 @@ raw3270_reset_device(struct raw3270 *rp)
         return rc;
 }
 
+int
+raw3270_reset(struct raw3270_view *view)
+{
+        struct raw3270 *rp;
+        int rc;
+
+        rp = view->dev;
+        if (!rp || rp->view != view)
+                rc = -EACCES;
+        else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
+                rc = -ENODEV;
+        else
+                rc = raw3270_reset_device(view->dev);
+        return rc;
+}
+
 /*
  * Setup new 3270 device.
  */
@@ -774,11 +814,12 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
 
         /*
          * Add device to list and find the smallest unused minor
-         * number for it.
+         * number for it. Note: there is no device with minor 0,
+         * see special case for fs3270.c:fs3270_open().
          */
         down(&raw3270_sem);
         /* Keep the list sorted. */
-        minor = 0;
+        minor = RAW3270_FIRSTMINOR;
         rp->minor = -1;
         list_for_each(l, &raw3270_devices) {
                 tmp = list_entry(l, struct raw3270, list);
@@ -789,7 +830,7 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
                 }
                 minor++;
         }
-        if (rp->minor == -1 && minor < RAW3270_MAXDEVS) {
+        if (rp->minor == -1 && minor < RAW3270_MAXDEVS + RAW3270_FIRSTMINOR) {
                 rp->minor = minor;
                 list_add_tail(&rp->list, &raw3270_devices);
         }
@@ -941,11 +982,12 @@ raw3270_deactivate_view(struct raw3270_view *view)
                 list_add_tail(&view->list, &rp->view_list);
                 /* Try to activate another view. */
                 if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
-                        list_for_each_entry(view, &rp->view_list, list)
-                                if (view->fn->activate(view) == 0) {
-                                        rp->view = view;
+                        list_for_each_entry(view, &rp->view_list, list) {
+                                rp->view = view;
+                                if (view->fn->activate(view) == 0)
                                         break;
-                                }
+                                rp->view = 0;
+                        }
                 }
         }
         spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
@@ -961,6 +1003,8 @@ raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn, int minor)
         struct raw3270 *rp;
         int rc;
 
+        if (minor <= 0)
+                return -ENODEV;
         down(&raw3270_sem);
         rc = -ENODEV;
         list_for_each_entry(rp, &raw3270_devices, list) {
@@ -976,7 +1020,7 @@ raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn, int minor)
                         view->cols = rp->cols;
                         view->ascebc = rp->ascebc;
                         spin_lock_init(&view->lock);
-                        list_add_tail(&view->list, &rp->view_list);
+                        list_add(&view->list, &rp->view_list);
                         rc = 0;
                 }
                 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
@@ -1039,7 +1083,7 @@ raw3270_del_view(struct raw3270_view *view)
         if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
                 /* Try to activate another view. */
                 list_for_each_entry(nv, &rp->view_list, list) {
-                        if (nv->fn->activate(view) == 0) {
+                        if (nv->fn->activate(nv) == 0) {
                                 rp->view = nv;
                                 break;
                         }
@@ -1063,6 +1107,12 @@ raw3270_delete_device(struct raw3270 *rp)
 
         /* Remove from device chain. */
         down(&raw3270_sem);
+        if (rp->clttydev)
+                class_device_destroy(class3270,
+                                     MKDEV(IBM_TTY3270_MAJOR, rp->minor));
+        if (rp->cltubdev)
+                class_device_destroy(class3270,
+                                     MKDEV(IBM_FS3270_MAJOR, rp->minor));
         list_del_init(&rp->list);
         up(&raw3270_sem);
 
@@ -1129,6 +1179,16 @@ raw3270_create_attributes(struct raw3270 *rp)
 {
         //FIXME: check return code
         sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
+        rp->clttydev =
+                class_device_create(class3270,
+                                    MKDEV(IBM_TTY3270_MAJOR, rp->minor),
+                                    &rp->cdev->dev, "tty%s",
+                                    rp->cdev->dev.bus_id);
+        rp->cltubdev =
+                class_device_create(class3270,
+                                    MKDEV(IBM_FS3270_MAJOR, rp->minor),
+                                    &rp->cdev->dev, "tub%s",
+                                    rp->cdev->dev.bus_id);
 }
 
 /*
@@ -1189,13 +1249,13 @@ raw3270_set_online (struct ccw_device *cdev)
                 return PTR_ERR(rp);
         rc = raw3270_reset_device(rp);
         if (rc)
-                return rc;
+                goto failure;
         rc = raw3270_size_device(rp);
         if (rc)
-                return rc;
+                goto failure;
         rc = raw3270_reset_device(rp);
         if (rc)
-                return rc;
+                goto failure;
         raw3270_create_attributes(rp);
         set_bit(RAW3270_FLAGS_READY, &rp->flags);
         down(&raw3270_sem);
@@ -1203,6 +1263,10 @@ raw3270_set_online (struct ccw_device *cdev)
                 np->notifier(rp->minor, 1);
         up(&raw3270_sem);
         return 0;
+
+failure:
+        raw3270_delete_device(rp);
+        return rc;
 }
 
 /*
@@ -1217,6 +1281,14 @@ raw3270_remove (struct ccw_device *cdev)
         struct raw3270_notifier *np;
 
         rp = cdev->dev.driver_data;
+        /*
+         * _remove is the opposite of _probe; it's probe that
+         * should set up rp.  raw3270_remove gets entered for
+         * devices even if they haven't been varied online.
+         * Thus, rp may validly be NULL here.
+         */
+        if (rp == NULL)
+                return;
         clear_bit(RAW3270_FLAGS_READY, &rp->flags);
 
         sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group);
@@ -1301,6 +1373,7 @@ raw3270_init(void)
         if (rc == 0) {
                 /* Create attributes for early (= console) device. */
                 down(&raw3270_sem);
+                class3270 = class_create(THIS_MODULE, "3270");
                 list_for_each_entry(rp, &raw3270_devices, list) {
                         get_device(&rp->cdev->dev);
                         raw3270_create_attributes(rp);
@@ -1314,6 +1387,7 @@ static void
 raw3270_exit(void)
 {
         ccw_driver_unregister(&raw3270_ccw_driver);
+        class_destroy(class3270);
 }
 
 MODULE_LICENSE("GPL");
@@ -1335,7 +1409,9 @@ EXPORT_SYMBOL(raw3270_find_view);
 EXPORT_SYMBOL(raw3270_activate_view);
 EXPORT_SYMBOL(raw3270_deactivate_view);
 EXPORT_SYMBOL(raw3270_start);
+EXPORT_SYMBOL(raw3270_start_locked);
 EXPORT_SYMBOL(raw3270_start_irq);
+EXPORT_SYMBOL(raw3270_reset);
 EXPORT_SYMBOL(raw3270_register_notifier);
 EXPORT_SYMBOL(raw3270_unregister_notifier);
 EXPORT_SYMBOL(raw3270_wait_queue);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index ed5d4eb9f623..b635bf8e7775 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -21,6 +21,7 @@
 
 /* Local Channel Commands */
 #define TC_WRITE        0x01            /* Write */
+#define TC_RDBUF        0x02            /* Read Buffer */
 #define TC_EWRITE       0x05            /* Erase write */
 #define TC_READMOD      0x06            /* Read modified */
 #define TC_EWRITEA      0x0d            /* Erase write alternate */
@@ -76,7 +77,8 @@
 #define TW_KR           0xc2            /* Keyboard restore */
 #define TW_PLUSALARM    0x04            /* Add this bit for alarm */
 
-#define RAW3270_MAXDEVS 256
+#define RAW3270_FIRSTMINOR      1       /* First minor number */
+#define RAW3270_MAXDEVS         255     /* Max number of 3270 devices */
 
 /* For TUBGETMOD and TUBSETMOD. Should include. */
 struct raw3270_iocb {
@@ -166,7 +168,10 @@ void raw3270_del_view(struct raw3270_view *);
 void raw3270_deactivate_view(struct raw3270_view *);
 struct raw3270_view *raw3270_find_view(struct raw3270_fn *, int);
 int raw3270_start(struct raw3270_view *, struct raw3270_request *);
+int raw3270_start_locked(struct raw3270_view *, struct raw3270_request *);
 int raw3270_start_irq(struct raw3270_view *, struct raw3270_request *);
+int raw3270_reset(struct raw3270_view *);
+struct raw3270_view *raw3270_view(struct raw3270_view *);
 
 /* Reference count inliner for view structures. */
 static inline void
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 7db5ebce7f0f..4b9069370388 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -653,18 +653,12 @@ tty3270_activate(struct raw3270_view *view)
         tp->update_flags = TTY_UPDATE_ALL;
         tty3270_set_timer(tp, 1);
         spin_unlock_irqrestore(&tp->view.lock, flags);
-        start_tty(tp->tty);
         return 0;
 }
 
 static void
 tty3270_deactivate(struct raw3270_view *view)
 {
-        struct tty3270 *tp;
-
-        tp = (struct tty3270 *) view;
-        if (tp && tp->tty)
-                stop_tty(tp->tty);
 }
 
 static int
@@ -716,13 +710,13 @@ tty3270_alloc_view(void)
                                   tp->freemem_pages[pages], PAGE_SIZE);
         }
         tp->write = raw3270_request_alloc(TTY3270_OUTPUT_BUFFER_SIZE);
-        if (!tp->write)
+        if (IS_ERR(tp->write))
                 goto out_pages;
         tp->read = raw3270_request_alloc(0);
-        if (!tp->read)
+        if (IS_ERR(tp->read))
                 goto out_write;
         tp->kreset = raw3270_request_alloc(1);
-        if (!tp->kreset)
+        if (IS_ERR(tp->kreset))
                 goto out_read;
         tp->kbd = kbd_alloc();
         if (!tp->kbd)
@@ -845,7 +839,8 @@ tty3270_del_views(void)
         int i;
 
         for (i = 0; i < tty3270_max_index; i++) {
-                tp = (struct tty3270 *) raw3270_find_view(&tty3270_fn, i);
+                tp = (struct tty3270 *)
+                        raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
                 if (!IS_ERR(tp))
                         raw3270_del_view(&tp->view);
         }
@@ -871,7 +866,9 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
         if (tty->count > 1)
                 return 0;
         /* Check if the tty3270 is already there. */
-        tp = (struct tty3270 *) raw3270_find_view(&tty3270_fn, tty->index);
+        tp = (struct tty3270 *)
+                raw3270_find_view(&tty3270_fn,
+                                  tty->index + RAW3270_FIRSTMINOR);
         if (!IS_ERR(tp)) {
                 tty->driver_data = tp;
                 tty->winsize.ws_row = tp->view.rows - 2;
@@ -903,7 +900,8 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
                      (void (*)(unsigned long)) tty3270_read_tasklet,
                      (unsigned long) tp->read);
 
-        rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
+        rc = raw3270_add_view(&tp->view, &tty3270_fn,
+                              tty->index + RAW3270_FIRSTMINOR);
         if (rc) {
                 tty3270_free_view(tp);
                 return rc;
@@ -911,8 +909,8 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 
         rc = tty3270_alloc_screen(tp);
         if (rc) {
-                raw3270_del_view(&tp->view);
                 raw3270_put_view(&tp->view);
+                raw3270_del_view(&tp->view);
                 return rc;
         }
 
@@ -1780,7 +1778,7 @@ tty3270_init(void)
         struct tty_driver *driver;
         int ret;
 
-        driver = alloc_tty_driver(256);
+        driver = alloc_tty_driver(RAW3270_MAXDEVS);
         if (!driver)
                 return -ENOMEM;
 
@@ -1794,6 +1792,7 @@ tty3270_init(void)
         driver->driver_name = "ttyTUB";
         driver->name = "ttyTUB";
         driver->major = IBM_TTY3270_MAJOR;
+        driver->minor_start = RAW3270_FIRSTMINOR;
         driver->type = TTY_DRIVER_TYPE_SYSTEM;
         driver->subtype = SYSTEM_TYPE_TTY;
         driver->init_termios = tty_std_termios;
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index 8cc4f1a940dc..c05b069c2996 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -30,10 +30,13 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/timex.h>        /* get_clock() */
 
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
 #include <asm/cmb.h>
+#include <asm/div64.h>
 
 #include "cio.h"
 #include "css.h"
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 9adc11e8b8bc..811c9d150637 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -22,6 +22,7 @@
 
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
+#include <asm/param.h>          /* HZ */
 
 #include "cio.h"
 #include "css.h"
@@ -252,6 +253,23 @@ cutype_show (struct device *dev, struct device_attribute *attr, char *buf)
 }
 
 static ssize_t
+modalias_show (struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct ccw_device *cdev = to_ccwdev(dev);
+        struct ccw_device_id *id = &(cdev->id);
+        int ret;
+
+        ret = sprintf(buf, "ccw:t%04Xm%02x",
+                        id->cu_type, id->cu_model);
+        if (id->dev_type != 0)
+                ret += sprintf(buf + ret, "dt%04Xdm%02X\n",
+                                id->dev_type, id->dev_model);
+        else
+                ret += sprintf(buf + ret, "dtdm\n");
+        return ret;
+}
+
+static ssize_t
 online_show (struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct ccw_device *cdev = to_ccwdev(dev);
@@ -448,6 +466,7 @@ static DEVICE_ATTR(chpids, 0444, chpids_show, NULL);
 static DEVICE_ATTR(pimpampom, 0444, pimpampom_show, NULL);
 static DEVICE_ATTR(devtype, 0444, devtype_show, NULL);
 static DEVICE_ATTR(cutype, 0444, cutype_show, NULL);
+static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
 static DEVICE_ATTR(online, 0644, online_show, online_store);
 extern struct device_attribute dev_attr_cmb_enable;
 static DEVICE_ATTR(availability, 0444, available_show, NULL);
@@ -471,6 +490,7 @@ subchannel_add_files (struct device *dev)
 static struct attribute * ccwdev_attrs[] = {
         &dev_attr_devtype.attr,
         &dev_attr_cutype.attr,
+        &dev_attr_modalias.attr,
         &dev_attr_online.attr,
         &dev_attr_cmb_enable.attr,
         &dev_attr_availability.attr,
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index fbe4202a3f6f..c1c89f4fd4e3 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -11,6 +11,8 @@
 #include <linux/module.h>
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/string.h>
 
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index fe8187d6f58b..e2a5657d5fdb 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -41,6 +41,7 @@
 #include <linux/interrupt.h>
 #include <linux/sched.h>
 #include <linux/dma-mapping.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -192,7 +193,6 @@ static void ahci_port_stop(struct ata_port *ap);
 static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
 static void ahci_qc_prep(struct ata_queued_cmd *qc);
 static u8 ahci_check_status(struct ata_port *ap);
-static u8 ahci_check_err(struct ata_port *ap);
 static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
 static void ahci_remove_one (struct pci_dev *pdev);
 
@@ -221,7 +221,6 @@ static const struct ata_port_operations ahci_ops = {
 
         .check_status           = ahci_check_status,
         .check_altstatus        = ahci_check_status,
-        .check_err              = ahci_check_err,
         .dev_select             = ata_noop_dev_select,
 
         .tf_read                = ahci_tf_read,
@@ -458,13 +457,6 @@ static u8 ahci_check_status(struct ata_port *ap)
         return readl(mmio + PORT_TFDATA) & 0xFF;
 }
 
-static u8 ahci_check_err(struct ata_port *ap)
-{
-        void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr;
-
-        return (readl(mmio + PORT_TFDATA) >> 8) & 0xFF;
-}
-
 static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
 {
         struct ahci_port_priv *pp = ap->private_data;
@@ -609,7 +601,7 @@ static void ahci_eng_timeout(struct ata_port *ap)
                  * not being called from the SCSI EH.
                  */
                 qc->scsidone = scsi_finish_command;
-                ata_qc_complete(qc, ATA_ERR);
+                ata_qc_complete(qc, AC_ERR_OTHER);
         }
 
         spin_unlock_irqrestore(&host_set->lock, flags);
@@ -638,7 +630,7 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
         if (status & PORT_IRQ_FATAL) {
                 ahci_intr_error(ap, status);
                 if (qc)
-                        ata_qc_complete(qc, ATA_ERR);
+                        ata_qc_complete(qc, AC_ERR_OTHER);
         }
 
         return 1;
@@ -683,10 +675,10 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
                         if (!ahci_host_intr(ap, qc))
                                 if (ata_ratelimit()) {
                                         struct pci_dev *pdev =
-                                          to_pci_dev(ap->host_set->dev);
-                                        printk(KERN_WARNING
-                                          "ahci(%s): unhandled interrupt on port %u\n",
-                                          pci_name(pdev), i);
+                                                to_pci_dev(ap->host_set->dev);
+                                        dev_printk(KERN_WARNING, &pdev->dev,
+                                          "unhandled interrupt on port %u\n",
+                                          i);
                                 }
 
                         VPRINTK("port %u\n", i);
@@ -694,10 +686,9 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
                         VPRINTK("port %u (no irq)\n", i);
                         if (ata_ratelimit()) {
                                 struct pci_dev *pdev =
-                                  to_pci_dev(ap->host_set->dev);
-                                printk(KERN_WARNING
-                                  "ahci(%s): interrupt on disabled port %u\n",
-                                  pci_name(pdev), i);
+                                        to_pci_dev(ap->host_set->dev);
+                                dev_printk(KERN_WARNING, &pdev->dev,
+                                        "interrupt on disabled port %u\n", i);
                         }
                 }
 
@@ -769,8 +760,8 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
 
         tmp = readl(mmio + HOST_CTL);
         if (tmp & HOST_RESET) {
-                printk(KERN_ERR DRV_NAME "(%s): controller reset failed (0x%x)\n",
-                        pci_name(pdev), tmp);
+                dev_printk(KERN_ERR, &pdev->dev,
+                           "controller reset failed (0x%x)\n", tmp);
                 return -EIO;
         }
 
@@ -798,22 +789,22 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
                 if (rc) {
                         rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
                         if (rc) {
-                                printk(KERN_ERR DRV_NAME "(%s): 64-bit DMA enable failed\n",
-                                        pci_name(pdev));
+                                dev_printk(KERN_ERR, &pdev->dev,
+                                           "64-bit DMA enable failed\n");
                                 return rc;
                         }
                 }
         } else {
                 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
                 if (rc) {
-                        printk(KERN_ERR DRV_NAME "(%s): 32-bit DMA enable failed\n",
-                                pci_name(pdev));
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                   "32-bit DMA enable failed\n");
                         return rc;
                 }
                 rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
                 if (rc) {
-                        printk(KERN_ERR DRV_NAME "(%s): 32-bit consistent DMA enable failed\n",
-                                pci_name(pdev));
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                   "32-bit consistent DMA enable failed\n");
                         return rc;
                 }
         }
@@ -916,10 +907,10 @@ static void ahci_print_info(struct ata_probe_ent *probe_ent)
         else
                 scc_s = "unknown";
 
-        printk(KERN_INFO DRV_NAME "(%s) AHCI %02x%02x.%02x%02x "
+        dev_printk(KERN_INFO, &pdev->dev,
+                "AHCI %02x%02x.%02x%02x "
                 "%u slots %u ports %s Gbps 0x%x impl %s mode\n"
                 ,
-                pci_name(pdev),
 
                 (vers >> 24) & 0xff,
                 (vers >> 16) & 0xff,
@@ -932,11 +923,11 @@ static void ahci_print_info(struct ata_probe_ent *probe_ent)
                 impl,
                 scc_s);
 
-        printk(KERN_INFO DRV_NAME "(%s) flags: "
+        dev_printk(KERN_INFO, &pdev->dev,
+                "flags: "
                 "%s%s%s%s%s%s"
                 "%s%s%s%s%s%s%s\n"
                 ,
-                pci_name(pdev),
 
                 cap & (1 << 31) ? "64bit " : "",
                 cap & (1 << 30) ? "ncq " : "",
@@ -969,7 +960,7 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         VPRINTK("ENTER\n");
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index be021478f416..7f8aa1b552ce 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -45,6 +45,7 @@
 #include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -621,18 +622,19 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
         static int printed_version;
         struct ata_port_info *port_info[2];
-        unsigned int combined = 0, n_ports = 1;
+        unsigned int combined = 0;
         unsigned int pata_chan = 0, sata_chan = 0;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev,
+                           "version " DRV_VERSION "\n");
 
         /* no hotplugging support (FIXME) */
         if (!in_module_init)
                 return -ENODEV;
 
         port_info[0] = &piix_port_info[ent->driver_data];
-        port_info[1] = NULL;
+        port_info[1] = &piix_port_info[ent->driver_data];
 
         if (port_info[0]->host_flags & PIIX_FLAG_AHCI) {
                 u8 tmp;
@@ -670,12 +672,13 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                 port_info[sata_chan] = &piix_port_info[ent->driver_data];
                 port_info[sata_chan]->host_flags |= ATA_FLAG_SLAVE_POSS;
                 port_info[pata_chan] = &piix_port_info[ich5_pata];
-                n_ports++;
 
-                printk(KERN_WARNING DRV_NAME ": combined mode detected\n");
+                dev_printk(KERN_WARNING, &pdev->dev,
+                           "combined mode detected (p=%u, s=%u)\n",
+                           pata_chan, sata_chan);
         }
 
-        return ata_pci_init_one(pdev, port_info, n_ports);
+        return ata_pci_init_one(pdev, port_info, 2);
 }
 
 static int __init piix_init(void)
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index ff25210b00ba..822b9fa706f3 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1543,13 +1543,16 @@ static struct vio_device_id ibmvscsi_device_table[] __devinitdata = {
         {"vscsi", "IBM,v-scsi"},
         { "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, ibmvscsi_device_table);
+
 static struct vio_driver ibmvscsi_driver = {
-        .name = "ibmvscsi",
         .id_table = ibmvscsi_device_table,
         .probe = ibmvscsi_probe,
-        .remove = ibmvscsi_remove
+        .remove = ibmvscsi_remove,
+        .driver = {
+                .name = "ibmvscsi",
+                .owner = THIS_MODULE,
+        }
 };
 
 int __init ibmvscsi_module_init(void)
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 3d62c9bcbff7..00d6a6657ebc 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -180,19 +180,12 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne
                         return;
                 }
                 count = min(pc->sg->length - pc->b_count, bcount);
-                if (PageHighMem(pc->sg->page)) {
-                        unsigned long flags;
-
-                        local_irq_save(flags);
-                        buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset;
-                        drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count);
-                        kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
-                        local_irq_restore(flags);
-                } else {
-                        buf = page_address(pc->sg->page) + pc->sg->offset;
-                        drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count);
-                }
-                bcount -= count; pc->b_count += count;
+                buf = kmap_atomic(pc->sg->page, KM_IRQ0);
+                drive->hwif->atapi_input_bytes(drive,
+                                buf + pc->b_count + pc->sg->offset, count);
+                kunmap_atomic(buf, KM_IRQ0);
+                bcount -= count;
+                pc->b_count += count;
                 if (pc->b_count == pc->sg->length) {
                         pc->sg++;
                         pc->b_count = 0;
@@ -212,19 +205,12 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign
                         return;
                 }
                 count = min(pc->sg->length - pc->b_count, bcount);
-                if (PageHighMem(pc->sg->page)) {
-                        unsigned long flags;
-
-                        local_irq_save(flags);
-                        buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset;
-                        drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
-                        kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
-                        local_irq_restore(flags);
-                } else {
-                        buf = page_address(pc->sg->page) + pc->sg->offset;
-                        drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count);
-                }
-                bcount -= count; pc->b_count += count;
+                buf = kmap_atomic(pc->sg->page, KM_IRQ0);
+                drive->hwif->atapi_output_bytes(drive,
+                                buf + pc->b_count + pc->sg->offset, count);
+                kunmap_atomic(buf, KM_IRQ0);
+                bcount -= count;
+                pc->b_count += count;
                 if (pc->b_count == pc->sg->length) {
                         pc->sg++;
                         pc->b_count = 0;
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 5ca97605ff35..8be7dc0b47b8 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -372,7 +372,7 @@ static void ata_tf_read_pio(struct ata_port *ap, struct ata_taskfile *tf)
         struct ata_ioports *ioaddr = &ap->ioaddr;
 
         tf->command = ata_check_status(ap);
-        tf->feature = ata_chk_err(ap);
+        tf->feature = inb(ioaddr->error_addr);
         tf->nsect = inb(ioaddr->nsect_addr);
         tf->lbal = inb(ioaddr->lbal_addr);
         tf->lbam = inb(ioaddr->lbam_addr);
@@ -406,7 +406,7 @@ static void ata_tf_read_mmio(struct ata_port *ap, struct ata_taskfile *tf)
         struct ata_ioports *ioaddr = &ap->ioaddr;
 
         tf->command = ata_check_status(ap);
-        tf->feature = ata_chk_err(ap);
+        tf->feature = readb((void __iomem *)ioaddr->error_addr);
         tf->nsect = readb((void __iomem *)ioaddr->nsect_addr);
         tf->lbal = readb((void __iomem *)ioaddr->lbal_addr);
         tf->lbam = readb((void __iomem *)ioaddr->lbam_addr);
@@ -527,30 +527,6 @@ u8 ata_altstatus(struct ata_port *ap)
 
 
 /**
- *      ata_chk_err - Read device error reg
- *      @ap: port where the device is
- *
- *      Reads ATA taskfile error register for
- *      currently-selected device and return its value.
- *
- *      Note: may NOT be used as the check_err() entry in
- *      ata_port_operations.
- *
- *      LOCKING:
- *      Inherited from caller.
- */
-u8 ata_chk_err(struct ata_port *ap)
-{
-        if (ap->ops->check_err)
-                return ap->ops->check_err(ap);
-
-        if (ap->flags & ATA_FLAG_MMIO) {
-                return readb((void __iomem *) ap->ioaddr.error_addr);
-        }
-        return inb(ap->ioaddr.error_addr);
-}
-
-/**
  *      ata_tf_to_fis - Convert ATA taskfile to SATA FIS structure
  *      @tf: Taskfile to convert
  *      @fis: Buffer into which data will output
@@ -902,8 +878,8 @@ static u8 ata_dev_try_classify(struct ata_port *ap, unsigned int device)
 
         memset(&tf, 0, sizeof(tf));
 
-        err = ata_chk_err(ap);
         ap->ops->tf_read(ap, &tf);
+        err = tf.feature;
 
         dev->class = ATA_DEV_NONE;
 
@@ -1140,7 +1116,6 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
         unsigned int major_version;
         u16 tmp;
         unsigned long xfer_modes;
-        u8 status;
         unsigned int using_edd;
         DECLARE_COMPLETION(wait);
         struct ata_queued_cmd *qc;
@@ -1194,8 +1169,11 @@ retry:
         else
                 wait_for_completion(&wait);
 
-        status = ata_chk_status(ap);
-        if (status & ATA_ERR) {
+        spin_lock_irqsave(&ap->host_set->lock, flags);
+        ap->ops->tf_read(ap, &qc->tf);
+        spin_unlock_irqrestore(&ap->host_set->lock, flags);
+
+        if (qc->tf.command & ATA_ERR) {
                 /*
                  * arg!  EDD works for all test cases, but seems to return
                  * the ATA signature for some ATAPI devices.  Until the
@@ -1208,7 +1186,7 @@ retry:
                  * to have this problem.
                  */
                 if ((using_edd) && (qc->tf.command == ATA_CMD_ID_ATA)) {
-                        u8 err = ata_chk_err(ap);
+                        u8 err = qc->tf.feature;
                         if (err & ATA_ABORTED) {
                                 dev->class = ATA_DEV_ATAPI;
                                 qc->cursg = 0;
@@ -2685,7 +2663,7 @@ static int ata_sg_setup(struct ata_queued_cmd *qc)
  *      None.  (grabs host lock)
  */
 
-void ata_poll_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
+void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
 {
         struct ata_port *ap = qc->ap;
         unsigned long flags;
@@ -2693,7 +2671,7 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
         spin_lock_irqsave(&ap->host_set->lock, flags);
         ap->flags &= ~ATA_FLAG_NOINTR;
         ata_irq_on(ap);
-        ata_qc_complete(qc, drv_stat);
+        ata_qc_complete(qc, err_mask);
         spin_unlock_irqrestore(&ap->host_set->lock, flags);
 }
 
@@ -2790,7 +2768,7 @@ static int ata_pio_complete (struct ata_port *ap)
 
         ap->hsm_task_state = HSM_ST_IDLE;
 
-        ata_poll_qc_complete(qc, drv_stat);
+        ata_poll_qc_complete(qc, 0);
 
         /* another command may start at this point */
 
@@ -3158,18 +3136,15 @@ static void ata_pio_block(struct ata_port *ap)
 static void ata_pio_error(struct ata_port *ap)
 {
         struct ata_queued_cmd *qc;
-        u8 drv_stat;
+
+        printk(KERN_WARNING "ata%u: PIO error\n", ap->id);
 
         qc = ata_qc_from_tag(ap, ap->active_tag);
         assert(qc != NULL);
 
-        drv_stat = ata_chk_status(ap);
-        printk(KERN_WARNING "ata%u: PIO error, drv_stat 0x%x\n",
-               ap->id, drv_stat);
-
         ap->hsm_task_state = HSM_ST_IDLE;
 
-        ata_poll_qc_complete(qc, drv_stat | ATA_ERR);
+        ata_poll_qc_complete(qc, AC_ERR_ATA_BUS);
 }
 
 static void ata_pio_task(void *_data)
@@ -3292,7 +3267,7 @@ static void ata_qc_timeout(struct ata_queued_cmd *qc)
                        ap->id, qc->tf.command, drv_stat, host_stat);
 
                 /* complete taskfile transaction */
-                ata_qc_complete(qc, drv_stat);
+                ata_qc_complete(qc, ac_err_mask(drv_stat));
                 break;
         }
 
@@ -3397,7 +3372,7 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
         return qc;
 }
 
-int ata_qc_complete_noop(struct ata_queued_cmd *qc, u8 drv_stat)
+int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask)
 {
         return 0;
 }
@@ -3456,7 +3431,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
  *      spin_lock_irqsave(host_set lock)
  */
 
-void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
+void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
 {
         int rc;
 
@@ -3473,7 +3448,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
         qc->flags &= ~ATA_QCFLAG_ACTIVE;
 
         /* call completion callback */
-        rc = qc->complete_fn(qc, drv_stat);
+        rc = qc->complete_fn(qc, err_mask);
 
         /* if callback indicates not to complete command (non-zero),
          * return immediately
@@ -3911,7 +3886,7 @@ inline unsigned int ata_host_intr (struct ata_port *ap,
                 ap->ops->irq_clear(ap);
 
                 /* complete taskfile transaction */
-                ata_qc_complete(qc, status);
+                ata_qc_complete(qc, ac_err_mask(status));
                 break;
 
         default:
@@ -4006,7 +3981,7 @@ static void atapi_packet_task(void *_data)
         /* sleep-wait for BSY to clear */
         DPRINTK("busy wait\n");
         if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB))
-                goto err_out;
+                goto err_out_status;
 
         /* make sure DRQ is set */
         status = ata_chk_status(ap);
@@ -4043,8 +4018,10 @@ static void atapi_packet_task(void *_data)
 
         return;
 
+err_out_status:
+        status = ata_chk_status(ap);
 err_out:
-        ata_poll_qc_complete(qc, ATA_ERR);
+        ata_poll_qc_complete(qc, __ac_err_mask(status));
 }
 
 
@@ -4550,11 +4527,11 @@ ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int
         return probe_ent;
 }
 
-static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, struct ata_port_info **port, int port_num)
+static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, struct ata_port_info *port, int port_num)
 {
         struct ata_probe_ent *probe_ent;
 
-        probe_ent = ata_probe_ent_alloc(pci_dev_to_dev(pdev), port[0]);
+        probe_ent = ata_probe_ent_alloc(pci_dev_to_dev(pdev), port);
         if (!probe_ent)
                 return NULL;
 
@@ -4701,9 +4678,9 @@ int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
 
         if (legacy_mode) {
                 if (legacy_mode & (1 << 0))
-                        probe_ent = ata_pci_init_legacy_port(pdev, port, 0);
+                        probe_ent = ata_pci_init_legacy_port(pdev, port[0], 0);
                 if (legacy_mode & (1 << 1))
-                        probe_ent2 = ata_pci_init_legacy_port(pdev, port, 1);
+                        probe_ent2 = ata_pci_init_legacy_port(pdev, port[1], 1);
         } else {
                 if (n_ports == 2)
                         probe_ent = ata_pci_init_native_mode(pdev, port, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
@@ -4867,7 +4844,6 @@ EXPORT_SYMBOL_GPL(ata_tf_to_fis);
 EXPORT_SYMBOL_GPL(ata_tf_from_fis);
 EXPORT_SYMBOL_GPL(ata_check_status);
 EXPORT_SYMBOL_GPL(ata_altstatus);
-EXPORT_SYMBOL_GPL(ata_chk_err);
 EXPORT_SYMBOL_GPL(ata_exec_command);
 EXPORT_SYMBOL_GPL(ata_port_start);
 EXPORT_SYMBOL_GPL(ata_port_stop);
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 89a04b1a5a0e..1e3792f86fcf 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -560,7 +560,7 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc)
          * Use ata_to_sense_error() to map status register bits
          * onto sense key, asc & ascq.
          */
-        if (unlikely(tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ))) {
+        if (tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
                 ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
                                    &sb[1], &sb[2], &sb[3]);
                 sb[1] &= 0x0f;
@@ -635,7 +635,7 @@ void ata_gen_fixed_sense(struct ata_queued_cmd *qc)
          * Use ata_to_sense_error() to map status register bits
          * onto sense key, asc & ascq.
          */
-        if (unlikely(tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ))) {
+        if (tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
                 ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
                                    &sb[2], &sb[12], &sb[13]);
                 sb[2] &= 0x0f;
@@ -644,7 +644,11 @@ void ata_gen_fixed_sense(struct ata_queued_cmd *qc)
         sb[0] = 0x70;
         sb[7] = 0x0a;
 
-        if (tf->flags & ATA_TFLAG_LBA && !(tf->flags & ATA_TFLAG_LBA48)) {
+        if (tf->flags & ATA_TFLAG_LBA48) {
+                /* TODO: find solution for LBA48 descriptors */
+        }
+
+        else if (tf->flags & ATA_TFLAG_LBA) {
                 /* A small (28b) LBA will fit in the 32b info field */
                 sb[0] |= 0x80;          /* set valid bit */
                 sb[3] = tf->device & 0x0f;
@@ -652,6 +656,10 @@ void ata_gen_fixed_sense(struct ata_queued_cmd *qc)
                 sb[5] = tf->lbam;
                 sb[6] = tf->lbal;
         }
+
+        else {
+                /* TODO: C/H/S */
+        }
 }
 
 /**
@@ -1199,10 +1207,12 @@ nothing_to_do:
         return 1;
 }
 
-static int ata_scsi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
+static int ata_scsi_qc_complete(struct ata_queued_cmd *qc,
+                                unsigned int err_mask)
 {
         struct scsi_cmnd *cmd = qc->scsicmd;
-        int need_sense = drv_stat & (ATA_ERR | ATA_BUSY | ATA_DRQ);
+        u8 *cdb = cmd->cmnd;
+        int need_sense = (err_mask != 0);
 
         /* For ATA pass thru (SAT) commands, generate a sense block if
          * user mandated it or if there's an error.  Note that if we
@@ -1211,8 +1221,8 @@ static int ata_scsi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
          * whether the command completed successfully or not. If there
          * was no error, SK, ASC and ASCQ will all be zero.
          */
-        if (((cmd->cmnd[0] == ATA_16) || (cmd->cmnd[0] == ATA_12)) &&
-            ((cmd->cmnd[2] & 0x20) || need_sense)) {
+        if (((cdb[0] == ATA_16) || (cdb[0] == ATA_12)) &&
+            ((cdb[2] & 0x20) || need_sense)) {
                 ata_gen_ata_desc_sense(qc);
         } else {
                 if (!need_sense) {
@@ -1995,21 +2005,13 @@ void atapi_request_sense(struct ata_port *ap, struct ata_device *dev,
         DPRINTK("EXIT\n");
 }
 
-static int atapi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
+static int atapi_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
 {
         struct scsi_cmnd *cmd = qc->scsicmd;
 
-        VPRINTK("ENTER, drv_stat == 0x%x\n", drv_stat);
-
-        if (unlikely(drv_stat & (ATA_BUSY | ATA_DRQ)))
-                /* FIXME: not quite right; we don't want the
-                 * translation of taskfile registers into
-                 * a sense descriptors, since that's only
-                 * correct for ATA, not ATAPI
-                 */
-                ata_gen_ata_desc_sense(qc);
+        VPRINTK("ENTER, err_mask 0x%X\n", err_mask);
 
-        else if (unlikely(drv_stat & ATA_ERR)) {
+        if (unlikely(err_mask & AC_ERR_DEV)) {
                 DPRINTK("request check condition\n");
 
                 /* FIXME: command completion with check condition
@@ -2026,6 +2028,14 @@ static int atapi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
                 return 1;
         }
 
+        else if (unlikely(err_mask))
+                /* FIXME: not quite right; we don't want the
+                 * translation of taskfile registers into
+                 * a sense descriptors, since that's only
+                 * correct for ATA, not ATAPI
+                 */
+                ata_gen_ata_desc_sense(qc);
+
         else {
                 u8 *scsicmd = cmd->cmnd;
 
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 65c264b91136..10ecd9e15e4f 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -39,7 +39,7 @@ struct ata_scsi_args {
 
 /* libata-core.c */
 extern int atapi_enabled;
-extern int ata_qc_complete_noop(struct ata_queued_cmd *qc, u8 drv_stat);
+extern int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask);
 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
                                       struct ata_device *dev);
 extern void ata_rwcmd_protocol(struct ata_queued_cmd *qc);
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index b235556b7b65..bdccf73cf9fe 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -730,7 +730,7 @@ static void start_phase(struct mesh_state *ms)
                  * issue a SEQ_MSGOUT to get the mesh to drop ACK.
                  */
                 if ((in_8(&mr->bus_status0) & BS0_ATN) == 0) {
-                        dlog(ms, "bus0 was %.2x explictly asserting ATN", mr->bus_status0);
+                        dlog(ms, "bus0 was %.2x explicitly asserting ATN", mr->bus_status0);
                         out_8(&mr->bus_status0, BS0_ATN); /* explicit ATN */
                         mesh_flush_io(mr);
                         udelay(1);
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index af99feb9d237..665017eda8a6 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -40,6 +40,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <asm/io.h>
@@ -451,7 +452,7 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set)
                 struct adma_port_priv *pp;
                 struct ata_queued_cmd *qc;
                 void __iomem *chan = ADMA_REGS(mmio_base, port_no);
-                u8 drv_stat = 0, status = readb(chan + ADMA_STATUS);
+                u8 status = readb(chan + ADMA_STATUS);
 
                 if (status == 0)
                         continue;
@@ -464,11 +465,14 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set)
                         continue;
                 qc = ata_qc_from_tag(ap, ap->active_tag);
                 if (qc && (!(qc->tf.ctl & ATA_NIEN))) {
+                        unsigned int err_mask = 0;
+
                         if ((status & (aPERR | aPSD | aUIRQ)))
-                                drv_stat = ATA_ERR;
+                                err_mask = AC_ERR_OTHER;
                         else if (pp->pkt[0] != cDONE)
-                                drv_stat = ATA_ERR;
-                        ata_qc_complete(qc, drv_stat);
+                                err_mask = AC_ERR_OTHER;
+
+                        ata_qc_complete(qc, err_mask);
                 }
         }
         return handled;
@@ -498,7 +502,7 @@ static inline unsigned int adma_intr_mmio(struct ata_host_set *host_set)
                 
                                 /* complete taskfile transaction */
                                 pp->state = adma_state_idle;
-                                ata_qc_complete(qc, status);
+                                ata_qc_complete(qc, ac_err_mask(status));
                                 handled = 1;
                         }
                 }
@@ -623,16 +627,14 @@ static int adma_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
 
         rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
         if (rc) {
-                printk(KERN_ERR DRV_NAME
-                        "(%s): 32-bit DMA enable failed\n",
-                        pci_name(pdev));
+                dev_printk(KERN_ERR, &pdev->dev,
+                        "32-bit DMA enable failed\n");
                 return rc;
         }
         rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
         if (rc) {
-                printk(KERN_ERR DRV_NAME
-                        "(%s): 32-bit consistent DMA enable failed\n",
-                        pci_name(pdev));
+                dev_printk(KERN_ERR, &pdev->dev,
+                        "32-bit consistent DMA enable failed\n");
                 return rc;
         }
         return 0;
@@ -648,7 +650,7 @@ static int adma_ata_init_one(struct pci_dev *pdev,
         int rc, port_no;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index 422e0b6f603a..46dbdee79f77 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -29,6 +29,7 @@
 #include <linux/interrupt.h>
 #include <linux/sched.h>
 #include <linux/dma-mapping.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -258,7 +259,6 @@ struct mv_host_priv {
 static void mv_irq_clear(struct ata_port *ap);
 static u32 mv_scr_read(struct ata_port *ap, unsigned int sc_reg_in);
 static void mv_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val);
-static u8 mv_check_err(struct ata_port *ap);
 static void mv_phy_reset(struct ata_port *ap);
 static void mv_host_stop(struct ata_host_set *host_set);
 static int mv_port_start(struct ata_port *ap);
@@ -296,7 +296,6 @@ static const struct ata_port_operations mv_ops = {
         .tf_load                = ata_tf_load,
         .tf_read                = ata_tf_read,
         .check_status           = ata_check_status,
-        .check_err              = mv_check_err,
         .exec_command           = ata_exec_command,
         .dev_select             = ata_std_dev_select,
 
@@ -1067,6 +1066,7 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
         struct ata_queued_cmd *qc;
         u32 hc_irq_cause;
         int shift, port, port0, hard_port, handled;
+        unsigned int err_mask;
         u8 ata_status = 0;
 
         if (hc == 0) {
@@ -1102,15 +1102,15 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
                         handled++;
                 }
 
+                err_mask = ac_err_mask(ata_status);
+
                 shift = port << 1;              /* (port * 2) */
                 if (port >= MV_PORTS_PER_HC) {
                         shift++;        /* skip bit 8 in the HC Main IRQ reg */
                 }
                 if ((PORT0_ERR << shift) & relevant) {
                         mv_err_intr(ap);
-                        /* OR in ATA_ERR to ensure libata knows we took one */
-                        ata_status = readb((void __iomem *)
-                                           ap->ioaddr.status_addr) | ATA_ERR;
+                        err_mask |= AC_ERR_OTHER;
                         handled++;
                 }
                 
@@ -1120,7 +1120,7 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
                                 VPRINTK("port %u IRQ found for qc, "
                                         "ata_status 0x%x\n", port,ata_status);
                                 /* mark qc status appropriately */
-                                ata_qc_complete(qc, ata_status);
+                                ata_qc_complete(qc, err_mask);
                         }
                 }
         }
@@ -1185,22 +1185,6 @@ static irqreturn_t mv_interrupt(int irq, void *dev_instance,
 }
 
 /**
- *      mv_check_err - Return the error shadow register to caller.
- *      @ap: ATA channel to manipulate
- *
- *      Marvell requires DMA to be stopped before accessing shadow
- *      registers.  So we do that, then return the needed register.
- *
- *      LOCKING:
- *      Inherited from caller.  FIXME: protect mv_stop_dma with lock?
- */
-static u8 mv_check_err(struct ata_port *ap)
-{
-        mv_stop_dma(ap);                /* can't read shadow regs if DMA on */
-        return readb((void __iomem *) ap->ioaddr.error_addr);
-}
-
-/**
  *      mv_phy_reset - Perform eDMA reset followed by COMRESET
  *      @ap: ATA channel to manipulate
  *
@@ -1312,7 +1296,7 @@ static void mv_eng_timeout(struct ata_port *ap)
                  */
                 spin_lock_irqsave(&ap->host_set->lock, flags);
                 qc->scsidone = scsi_finish_command;
-                ata_qc_complete(qc, ATA_ERR);
+                ata_qc_complete(qc, AC_ERR_OTHER);
                 spin_unlock_irqrestore(&ap->host_set->lock, flags);
         }
 }
@@ -1454,9 +1438,9 @@ static void mv_print_info(struct ata_probe_ent *probe_ent)
         else
                 scc_s = "unknown";
 
-        printk(KERN_INFO DRV_NAME 
-               "(%s) %u slots %u ports %s mode IRQ via %s\n",
-               pci_name(pdev), (unsigned)MV_MAX_Q_DEPTH, probe_ent->n_ports, 
+        dev_printk(KERN_INFO, &pdev->dev,
+               "%u slots %u ports %s mode IRQ via %s\n",
+               (unsigned)MV_MAX_Q_DEPTH, probe_ent->n_ports, 
                scc_s, (MV_HP_FLAG_MSI & hpriv->hp_flags) ? "MSI" : "INTx");
 }
 
@@ -1477,9 +1461,8 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         void __iomem *mmio_base;
         int pci_dev_busy = 0, rc;
 
-        if (!printed_version++) {
-                printk(KERN_INFO DRV_NAME " version " DRV_VERSION "\n");
-        }
+        if (!printed_version++)
+                dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc) {
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index 1a56d6c79ddd..d573888eda76 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -61,6 +61,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -383,7 +384,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                         return -ENODEV;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 63911f16b6ec..b41c977d6fab 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -38,6 +38,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -399,7 +400,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
         case ATA_PROT_DMA:
         case ATA_PROT_NODATA:
                 printk(KERN_ERR "ata%u: command timeout\n", ap->id);
-                ata_qc_complete(qc, ata_wait_idle(ap) | ATA_ERR);
+                drv_stat = ata_wait_idle(ap);
+                ata_qc_complete(qc, __ac_err_mask(drv_stat));
                 break;
 
         default:
@@ -408,7 +410,7 @@ static void pdc_eng_timeout(struct ata_port *ap)
                 printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
                        ap->id, qc->tf.command, drv_stat);
 
-                ata_qc_complete(qc, drv_stat);
+                ata_qc_complete(qc, ac_err_mask(drv_stat));
                 break;
         }
 
@@ -420,24 +422,21 @@ out:
 static inline unsigned int pdc_host_intr( struct ata_port *ap,
                                           struct ata_queued_cmd *qc)
 {
-        u8 status;
-        unsigned int handled = 0, have_err = 0;
+        unsigned int handled = 0, err_mask = 0;
         u32 tmp;
         void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
 
         tmp = readl(mmio);
         if (tmp & PDC_ERR_MASK) {
-                have_err = 1;
+                err_mask = AC_ERR_DEV;
                 pdc_reset_port(ap);
         }
 
         switch (qc->tf.protocol) {
         case ATA_PROT_DMA:
         case ATA_PROT_NODATA:
-                status = ata_wait_idle(ap);
-                if (have_err)
-                        status |= ATA_ERR;
-                ata_qc_complete(qc, status);
+                err_mask |= ac_err_mask(ata_wait_idle(ap));
+                ata_qc_complete(qc, err_mask);
                 handled = 1;
                 break;
 
@@ -635,7 +634,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         int rc;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         /*
          * If this driver happens to only be useful on Apple's K2, then
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index 1aaf3304d397..9938dae782b6 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -35,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <asm/io.h>
@@ -400,11 +401,12 @@ static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set)
                                 qc = ata_qc_from_tag(ap, ap->active_tag);
                                 if (qc && (!(qc->tf.ctl & ATA_NIEN))) {
                                         switch (sHST) {
-                                        case 0: /* sucessful CPB */
+                                        case 0: /* successful CPB */
                                         case 3: /* device error */
                                                 pp->state = qs_state_idle;
                                                 qs_enter_reg_mode(qc->ap);
-                                                ata_qc_complete(qc, sDST);
+                                                ata_qc_complete(qc,
+                                                        ac_err_mask(sDST));
                                                 break;
                                         default:
                                                 break;
@@ -441,7 +443,7 @@ static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set)
 
                                 /* complete taskfile transaction */
                                 pp->state = qs_state_idle;
-                                ata_qc_complete(qc, status);
+                                ata_qc_complete(qc, ac_err_mask(status));
                                 handled = 1;
                         }
                 }
@@ -599,25 +601,22 @@ static int qs_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
                 if (rc) {
                         rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
                         if (rc) {
-                                printk(KERN_ERR DRV_NAME
-                                        "(%s): 64-bit DMA enable failed\n",
-                                        pci_name(pdev));
+                                dev_printk(KERN_ERR, &pdev->dev,
+                                           "64-bit DMA enable failed\n");
                                 return rc;
                         }
                 }
         } else {
                 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
                 if (rc) {
-                        printk(KERN_ERR DRV_NAME
-                                "(%s): 32-bit DMA enable failed\n",
-                                pci_name(pdev));
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                "32-bit DMA enable failed\n");
                         return rc;
                 }
                 rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
                 if (rc) {
-                        printk(KERN_ERR DRV_NAME
-                                "(%s): 32-bit consistent DMA enable failed\n",
-                                pci_name(pdev));
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                "32-bit consistent DMA enable failed\n");
                         return rc;
                 }
         }
@@ -634,7 +633,7 @@ static int qs_ata_init_one(struct pci_dev *pdev,
         int rc, port_no;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index 3a056173fb95..435f7e0085ec 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -41,6 +41,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -386,7 +387,7 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         u8 cls;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         /*
          * If this driver happens to only be useful on Apple's K2, then
@@ -463,8 +464,8 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                         writeb(cls, mmio_base + SIL_FIFO_W3);
                 }
         } else
-                printk(KERN_WARNING DRV_NAME "(%s): cache line size not set.  Driver may not function\n",
-                        pci_name(pdev));
+                dev_printk(KERN_WARNING, &pdev->dev,
+                         "cache line size not set.  Driver may not function\n");
 
         if (ent->driver_data == sil_3114) {
                 irq_mask = SIL_MASK_4PORT;
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 51855d3bac64..c66548025657 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -35,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
+#include <linux/device.h>
 #include <scsi/scsi_host.h>
 #include "scsi.h"
 #include <linux/libata.h>
@@ -225,7 +226,6 @@ struct sil24_host_priv {
 };
 
 static u8 sil24_check_status(struct ata_port *ap);
-static u8 sil24_check_err(struct ata_port *ap);
 static u32 sil24_scr_read(struct ata_port *ap, unsigned sc_reg);
 static void sil24_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val);
 static void sil24_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
@@ -280,7 +280,6 @@ static const struct ata_port_operations sil24_ops = {
 
         .check_status           = sil24_check_status,
         .check_altstatus        = sil24_check_status,
-        .check_err              = sil24_check_err,
         .dev_select             = ata_noop_dev_select,
 
         .tf_read                = sil24_tf_read,
@@ -363,12 +362,6 @@ static u8 sil24_check_status(struct ata_port *ap)
         return pp->tf.command;
 }
 
-static u8 sil24_check_err(struct ata_port *ap)
-{
-        struct sil24_port_priv *pp = ap->private_data;
-        return pp->tf.feature;
-}
-
 static int sil24_scr_map[] = {
         [SCR_CONTROL]   = 0,
         [SCR_STATUS]    = 1,
@@ -506,7 +499,7 @@ static void sil24_eng_timeout(struct ata_port *ap)
 
         qc = ata_qc_from_tag(ap, ap->active_tag);
         if (!qc) {
-                printk(KERN_ERR "ata%u: BUG: tiemout without command\n",
+                printk(KERN_ERR "ata%u: BUG: timeout without command\n",
                        ap->id);
                 return;
         }
@@ -520,7 +513,7 @@ static void sil24_eng_timeout(struct ata_port *ap)
          */
         printk(KERN_ERR "ata%u: command timeout\n", ap->id);
         qc->scsidone = scsi_finish_command;
-        ata_qc_complete(qc, ATA_ERR);
+        ata_qc_complete(qc, AC_ERR_OTHER);
 
         sil24_reset_controller(ap);
 }
@@ -531,6 +524,7 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
         struct sil24_port_priv *pp = ap->private_data;
         void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
         u32 irq_stat, cmd_err, sstatus, serror;
+        unsigned int err_mask;
 
         irq_stat = readl(port + PORT_IRQ_STAT);
         writel(irq_stat, port + PORT_IRQ_STAT);         /* clear irq */
@@ -558,17 +552,18 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
                  * Device is reporting error, tf registers are valid.
                  */
                 sil24_update_tf(ap);
+                err_mask = ac_err_mask(pp->tf.command);
         } else {
                 /*
                  * Other errors.  libata currently doesn't have any
                  * mechanism to report these errors.  Just turn on
                  * ATA_ERR.
                  */
-                pp->tf.command = ATA_ERR;
+                err_mask = AC_ERR_OTHER;
         }
 
         if (qc)
-                ata_qc_complete(qc, pp->tf.command);
+                ata_qc_complete(qc, err_mask);
 
         sil24_reset_controller(ap);
 }
@@ -593,7 +588,7 @@ static inline void sil24_host_intr(struct ata_port *ap)
                 sil24_update_tf(ap);
 
                 if (qc)
-                        ata_qc_complete(qc, pp->tf.command);
+                        ata_qc_complete(qc, ac_err_mask(pp->tf.command));
         } else
                 sil24_error_intr(ap, slot_stat);
 }
@@ -696,7 +691,7 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         int i, rc;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
@@ -756,14 +751,14 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
          */
         rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
         if (rc) {
-                printk(KERN_ERR DRV_NAME "(%s): 32-bit DMA enable failed\n",
-                       pci_name(pdev));
+                dev_printk(KERN_ERR, &pdev->dev,
+                           "32-bit DMA enable failed\n");
                 goto out_free;
         }
         rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
         if (rc) {
-                printk(KERN_ERR DRV_NAME "(%s): 32-bit consistent DMA enable failed\n",
-                       pci_name(pdev));
+                dev_printk(KERN_ERR, &pdev->dev,
+                           "32-bit consistent DMA enable failed\n");
                 goto out_free;
         }
 
@@ -799,9 +794,8 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                                         break;
                         }
                         if (tmp & PORT_CS_PORT_RST)
-                                printk(KERN_ERR DRV_NAME
-                                       "(%s): failed to clear port RST\n",
-                                       pci_name(pdev));
+                                dev_printk(KERN_ERR, &pdev->dev,
+                                           "failed to clear port RST\n");
                 }
 
                 /* Zero error counters. */
@@ -830,9 +824,8 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
                 /* Reset itself */
                 if (__sil24_reset_controller(port))
-                        printk(KERN_ERR DRV_NAME
-                               "(%s): failed to reset controller\n",
-                               pci_name(pdev));
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                   "failed to reset controller\n");
         }
 
         /* Turn on interrupts */
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index 057f7b98b6c4..42288be0e561 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -38,6 +38,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -237,6 +238,7 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
 
 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
+        static int printed_version;
         struct ata_probe_ent *probe_ent = NULL;
         int rc;
         u32 genctl;
@@ -245,6 +247,9 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         u8 pmr;
         u8 port2_start;
 
+        if (!printed_version++)
+                dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
+
         rc = pci_enable_device(pdev);
         if (rc)
                 return rc;
@@ -288,16 +293,18 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         pci_read_config_byte(pdev, SIS_PMR, &pmr);
         if (ent->device != 0x182) {
                 if ((pmr & SIS_PMR_COMBINED) == 0) {
-                        printk(KERN_INFO "sata_sis: Detected SiS 180/181 chipset in SATA mode\n");
+                        dev_printk(KERN_INFO, &pdev->dev,
+                                   "Detected SiS 180/181 chipset in SATA mode\n");
                         port2_start = 64;
                 }
                 else {
-                        printk(KERN_INFO "sata_sis: Detected SiS 180/181 chipset in combined mode\n");
+                        dev_printk(KERN_INFO, &pdev->dev,
+                                   "Detected SiS 180/181 chipset in combined mode\n");
                         port2_start=0;
                 }
         }
         else {
-                printk(KERN_INFO "sata_sis: Detected SiS 182 chipset\n");
+                dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182 chipset\n");
                 port2_start = 0x20;
         }
 
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 46208f52d0e1..db615ff794d8 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -44,6 +44,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -362,7 +363,7 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         int i;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         /*
          * If this driver happens to only be useful on Apple's K2, then
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index af08f4f650c1..0ec21e09f5d8 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -38,6 +38,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -718,7 +719,7 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
                         VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id,
                                 readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
                         /* get drive status; clear intr; complete txn */
-                        ata_qc_complete(qc, ata_wait_idle(ap));
+                        ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap)));
                         pdc20621_pop_hdma(qc);
                 }
 
@@ -756,7 +757,7 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
                         VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id,
                                 readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
                         /* get drive status; clear intr; complete txn */
-                        ata_qc_complete(qc, ata_wait_idle(ap));
+                        ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap)));
                         pdc20621_pop_hdma(qc);
                 }
                 handled = 1;
@@ -766,7 +767,7 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
 
                 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
                 DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status);
-                ata_qc_complete(qc, status);
+                ata_qc_complete(qc, ac_err_mask(status));
                 handled = 1;
 
         } else {
@@ -881,7 +882,7 @@ static void pdc_eng_timeout(struct ata_port *ap)
         case ATA_PROT_DMA:
         case ATA_PROT_NODATA:
                 printk(KERN_ERR "ata%u: command timeout\n", ap->id);
-                ata_qc_complete(qc, ata_wait_idle(ap) | ATA_ERR);
+                ata_qc_complete(qc, __ac_err_mask(ata_wait_idle(ap)));
                 break;
 
         default:
@@ -890,7 +891,7 @@ static void pdc_eng_timeout(struct ata_port *ap)
                 printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
                        ap->id, qc->tf.command, drv_stat);
 
-                ata_qc_complete(qc, drv_stat);
+                ata_qc_complete(qc, ac_err_mask(drv_stat));
                 break;
         }
 
@@ -1385,7 +1386,7 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
         int rc;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         /*
          * If this driver happens to only be useful on Apple's K2, then
diff --git a/drivers/scsi/sata_uli.c b/drivers/scsi/sata_uli.c
index d68dc7d3422c..a5e245c098e1 100644
--- a/drivers/scsi/sata_uli.c
+++ b/drivers/scsi/sata_uli.c
@@ -32,6 +32,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -178,12 +179,16 @@ static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
 
 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
+        static int printed_version;
         struct ata_probe_ent *probe_ent;
         struct ata_port_info *ppi;
         int rc;
         unsigned int board_idx = (unsigned int) ent->driver_data;
         int pci_dev_busy = 0;
 
+        if (!printed_version++)
+                dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
+
         rc = pci_enable_device(pdev);
         if (rc)
                 return rc;
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index 80e291a909a9..b3ecdbe400e9 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -41,6 +41,7 @@
 #include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -259,15 +260,15 @@ static void svia_configure(struct pci_dev *pdev)
         u8 tmp8;
 
         pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8);
-        printk(KERN_INFO DRV_NAME "(%s): routed to hard irq line %d\n",
-               pci_name(pdev),
+        dev_printk(KERN_INFO, &pdev->dev, "routed to hard irq line %d\n",
                (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f);
 
         /* make sure SATA channels are enabled */
         pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8);
         if ((tmp8 & ALL_PORTS) != ALL_PORTS) {
-                printk(KERN_DEBUG DRV_NAME "(%s): enabling SATA channels (0x%x)\n",
-                       pci_name(pdev), (int) tmp8);
+                dev_printk(KERN_DEBUG, &pdev->dev,
+                           "enabling SATA channels (0x%x)\n",
+                           (int) tmp8);
                 tmp8 |= ALL_PORTS;
                 pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8);
         }
@@ -275,8 +276,9 @@ static void svia_configure(struct pci_dev *pdev)
         /* make sure interrupts for each channel sent to us */
         pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8);
         if ((tmp8 & ALL_PORTS) != ALL_PORTS) {
-                printk(KERN_DEBUG DRV_NAME "(%s): enabling SATA channel interrupts (0x%x)\n",
-                       pci_name(pdev), (int) tmp8);
+                dev_printk(KERN_DEBUG, &pdev->dev,
+                           "enabling SATA channel interrupts (0x%x)\n",
+                           (int) tmp8);
                 tmp8 |= ALL_PORTS;
                 pci_write_config_byte(pdev, SATA_INT_GATE, tmp8);
         }
@@ -284,8 +286,9 @@ static void svia_configure(struct pci_dev *pdev)
         /* make sure native mode is enabled */
         pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8);
         if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) {
-                printk(KERN_DEBUG DRV_NAME "(%s): enabling SATA channel native mode (0x%x)\n",
-                       pci_name(pdev), (int) tmp8);
+                dev_printk(KERN_DEBUG, &pdev->dev,
+                           "enabling SATA channel native mode (0x%x)\n",
+                           (int) tmp8);
                 tmp8 |= NATIVE_MODE_ALL;
                 pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8);
         }
@@ -303,7 +306,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         u8 tmp8;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
@@ -318,8 +321,9 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         if (board_id == vt6420) {
                 pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8);
                 if (tmp8 & SATA_2DEV) {
-                        printk(KERN_ERR DRV_NAME "(%s): SATA master/slave not supported (0x%x)\n",
-                        pci_name(pdev), (int) tmp8);
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                   "SATA master/slave not supported (0x%x)\n",
+                                   (int) tmp8);
                         rc = -EIO;
                         goto err_out_regions;
                 }
@@ -332,10 +336,11 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++)
                 if ((pci_resource_start(pdev, i) == 0) ||
                     (pci_resource_len(pdev, i) < bar_sizes[i])) {
-                        printk(KERN_ERR DRV_NAME "(%s): invalid PCI BAR %u (sz 0x%lx, val 0x%lx)\n",
-                               pci_name(pdev), i,
-                               pci_resource_start(pdev, i),
-                               pci_resource_len(pdev, i));
+                        dev_printk(KERN_ERR, &pdev->dev,
+                                   "invalid PCI BAR %u (sz 0x%lx, val 0x%lx)\n",
+                                   i,
+                                   pci_resource_start(pdev, i),
+                                   pci_resource_len(pdev, i));
                         rc = -ENODEV;
                         goto err_out_regions;
                 }
@@ -353,8 +358,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                 probe_ent = vt6421_init_probe_ent(pdev);
 
         if (!probe_ent) {
-                printk(KERN_ERR DRV_NAME "(%s): out of memory\n",
-                       pci_name(pdev));
+                dev_printk(KERN_ERR, &pdev->dev, "out of memory\n");
                 rc = -ENOMEM;
                 goto err_out_regions;
         }
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index 54273e0063c7..bb84ba0c7e83 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -42,6 +42,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
+#include <linux/device.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -295,7 +296,7 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
         int rc;
 
         if (!printed_version++)
-                printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+                dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
         rc = pci_enable_device(pdev);
         if (rc)
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 771e97ef136e..b856e140e65f 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -26,6 +26,7 @@
  */
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/sched.h>        /* workqueue stuff, HZ */
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_transport.h>
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 8bb8222ea589..d2caa35059d9 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -19,6 +19,9 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 #include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_device.h>
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index e753ba27dc59..a1a58e1d5ad3 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -37,6 +37,9 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
+#include <linux/slab.h>
+
 #include "sym_glue.h"
 #include "sym_nvram.h"
 
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.h b/drivers/scsi/sym53c8xx_2/sym_hipd.h
index 3131a6bf7ab7..3a264a408216 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.h
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.h
@@ -37,6 +37,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/gfp.h>
+
 #ifndef SYM_HIPD_H
 #define SYM_HIPD_H
 
diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index f88fdd480685..771676abee60 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -308,6 +308,8 @@ struct ioc4_serial {
 typedef void ioc4_intr_func_f(void *, uint32_t);
 typedef ioc4_intr_func_f *ioc4_intr_func_t;
 
+static unsigned int Num_of_ioc4_cards;
+
 /* defining this will get you LOTS of great debug info */
 //#define DEBUG_INTERRUPTS
 #define DPRINT_CONFIG(_x...)    ;
@@ -317,7 +319,8 @@ typedef ioc4_intr_func_f *ioc4_intr_func_t;
 #define WAKEUP_CHARS    256
 
 /* number of characters we want to transmit to the lower level at a time */
-#define IOC4_MAX_CHARS  128
+#define IOC4_MAX_CHARS  256
+#define IOC4_FIFO_CHARS 255
 
 /* Device name we're using */
 #define DEVICE_NAME     "ttyIOC"
@@ -1038,6 +1041,7 @@ static int inline ioc4_attach_local(struct ioc4_driver_data *idd)
                         return -ENOMEM;
                 }
                 memset(port, 0, sizeof(struct ioc4_port));
+                spin_lock_init(&port->ip_lock);
 
                 /* we need to remember the previous ones, to point back to
                  * them farther down - setting up the ring buffers.
@@ -1691,12 +1695,14 @@ ioc4_change_speed(struct uart_port *the_port,
                 baud = 9600;
 
         if (!the_port->fifosize)
-                the_port->fifosize = IOC4_MAX_CHARS;
+                the_port->fifosize = IOC4_FIFO_CHARS;
         the_port->timeout = ((the_port->fifosize * HZ * bits) / (baud / 10));
         the_port->timeout += HZ / 50;   /* Add .02 seconds of slop */
 
         the_port->ignore_status_mask = N_ALL_INPUT;
 
+        info->tty->low_latency = 1;
+
         if (I_IGNPAR(info->tty))
                 the_port->ignore_status_mask &= ~(N_PARITY_ERROR
                                                 | N_FRAMING_ERROR);
@@ -1742,7 +1748,6 @@ ioc4_change_speed(struct uart_port *the_port,
  */
 static inline int ic4_startup_local(struct uart_port *the_port)
 {
-        int retval = 0;
         struct ioc4_port *port;
         struct uart_info *info;
 
@@ -1754,9 +1759,6 @@ static inline int ic4_startup_local(struct uart_port *the_port)
                 return -1;
 
         info = the_port->info;
-        if (info->flags & UIF_INITIALIZED) {
-                return retval;
-        }
 
         if (info->tty) {
                 set_bit(TTY_IO_ERROR, &info->tty->flags);
@@ -1775,7 +1777,6 @@ static inline int ic4_startup_local(struct uart_port *the_port)
         /* set the speed of the serial port */
         ioc4_change_speed(the_port, info->tty->termios, (struct termios *)0);
 
-        info->flags |= UIF_INITIALIZED;
         return 0;
 }
 
@@ -1785,9 +1786,13 @@ static inline int ic4_startup_local(struct uart_port *the_port)
  */
 static void ioc4_cb_output_lowat(struct ioc4_port *port)
 {
+        unsigned long pflags;
+
         /* ip_lock is set on the call here */
         if (port->ip_port) {
+                spin_lock_irqsave(&port->ip_port->lock, pflags);
                 transmit_chars(port->ip_port);
+                spin_unlock_irqrestore(&port->ip_port->lock, pflags);
         }
 }
 
@@ -2064,8 +2069,7 @@ static inline int do_read(struct uart_port *the_port, unsigned char *buf,
          * available data as long as it returns some.
          */
         /* Re-arm the timer */
-        writel(port->ip_rx_cons | IOC4_SRCIR_ARM,
-                        &port->ip_serial_regs->srcir);
+        writel(port->ip_rx_cons | IOC4_SRCIR_ARM, &port->ip_serial_regs->srcir);
 
         prod_ptr = readl(&port->ip_serial_regs->srpir) & PROD_CONS_MASK;
         cons_ptr = port->ip_rx_cons;
@@ -2299,6 +2303,7 @@ static inline int do_read(struct uart_port *the_port, unsigned char *buf,
         }
         return total;
 }
+
 /**
  * receive_chars - upper level read. Called with ip_lock.
  * @the_port: port to read from
@@ -2307,9 +2312,11 @@ static void receive_chars(struct uart_port *the_port)
 {
         struct tty_struct *tty;
         unsigned char ch[IOC4_MAX_CHARS];
-        int read_count, request_count;
+        int read_count, request_count = IOC4_MAX_CHARS;
         struct uart_icount *icount;
         struct uart_info *info = the_port->info;
+        int flip = 0;
+        unsigned long pflags;
 
         /* Make sure all the pointers are "good" ones */
         if (!info)
@@ -2317,16 +2324,17 @@ static void receive_chars(struct uart_port *the_port)
         if (!info->tty)
                 return;
 
+        spin_lock_irqsave(&the_port->lock, pflags);
         tty = info->tty;
 
-        request_count = TTY_FLIPBUF_SIZE - tty->flip.count - 1;
+        if (request_count > TTY_FLIPBUF_SIZE - tty->flip.count)
+                request_count = TTY_FLIPBUF_SIZE - tty->flip.count;
 
         if (request_count > 0) {
-                if (request_count > IOC4_MAX_CHARS - 2)
-                        request_count = IOC4_MAX_CHARS - 2;
                 icount = &the_port->icount;
                 read_count = do_read(the_port, ch, request_count);
                 if (read_count > 0) {
+                        flip = 1;
                         memcpy(tty->flip.char_buf_ptr, ch, read_count);
                         memset(tty->flip.flag_buf_ptr, TTY_NORMAL, read_count);
                         tty->flip.char_buf_ptr += read_count;
@@ -2335,7 +2343,11 @@ static void receive_chars(struct uart_port *the_port)
                         icount->rx += read_count;
                 }
         }
-        tty_flip_buffer_push(tty);
+
+        spin_unlock_irqrestore(&the_port->lock, pflags);
+
+        if (flip)
+                tty_flip_buffer_push(tty);
 }
 
 /**
@@ -2393,18 +2405,14 @@ static void ic4_shutdown(struct uart_port *the_port)
 
         info = the_port->info;
 
-        if (!(info->flags & UIF_INITIALIZED))
-                return;
-
         wake_up_interruptible(&info->delta_msr_wait);
 
         if (info->tty)
                 set_bit(TTY_IO_ERROR, &info->tty->flags);
 
-        spin_lock_irqsave(&port->ip_lock, port_flags);
+        spin_lock_irqsave(&the_port->lock, port_flags);
         set_notification(port, N_ALL, 0);
-        info->flags &= ~UIF_INITIALIZED;
-        spin_unlock_irqrestore(&port->ip_lock, port_flags);
+        spin_unlock_irqrestore(&the_port->lock, port_flags);
 }
 
 /**
@@ -2463,12 +2471,10 @@ static unsigned int ic4_get_mctrl(struct uart_port *the_port)
 static void ic4_start_tx(struct uart_port *the_port)
 {
         struct ioc4_port *port = get_ioc4_port(the_port);
-        unsigned long flags;
 
         if (port) {
-                spin_lock_irqsave(&port->ip_lock, flags);
-                transmit_chars(the_port);
-                spin_unlock_irqrestore(&port->ip_lock, flags);
+                set_notification(port, N_OUTPUT_LOWAT, 1);
+                enable_intrs(port, port->ip_hooks->intr_tx_mt);
         }
 }
 
@@ -2510,9 +2516,9 @@ static int ic4_startup(struct uart_port *the_port)
         }
 
         /* Start up the serial port */
-        spin_lock_irqsave(&port->ip_lock, port_flags);
+        spin_lock_irqsave(&the_port->lock, port_flags);
         retval = ic4_startup_local(the_port);
-        spin_unlock_irqrestore(&port->ip_lock, port_flags);
+        spin_unlock_irqrestore(&the_port->lock, port_flags);
         return retval;
 }
 
@@ -2527,12 +2533,11 @@ static void
 ic4_set_termios(struct uart_port *the_port,
                 struct termios *termios, struct termios *old_termios)
 {
-        struct ioc4_port *port = get_ioc4_port(the_port);
         unsigned long port_flags;
 
-        spin_lock_irqsave(&port->ip_lock, port_flags);
+        spin_lock_irqsave(&the_port->lock, port_flags);
         ioc4_change_speed(the_port, termios, old_termios);
-        spin_unlock_irqrestore(&port->ip_lock, port_flags);
+        spin_unlock_irqrestore(&the_port->lock, port_flags);
 }
 
 /**
@@ -2607,24 +2612,25 @@ ioc4_serial_core_attach(struct pci_dev *pdev)
                                 __FUNCTION__, (void *)the_port,
                                 (void *)port));
 
-                spin_lock_init(&the_port->lock);
                 /* membase, iobase and mapbase just need to be non-0 */
                 the_port->membase = (unsigned char __iomem *)1;
-                the_port->line = the_port->iobase = ii;
+                the_port->iobase = (pdev->bus->number << 16) |  ii;
+                the_port->line = (Num_of_ioc4_cards << 2) | ii;
                 the_port->mapbase = 1;
                 the_port->type = PORT_16550A;
-                the_port->fifosize = IOC4_MAX_CHARS;
+                the_port->fifosize = IOC4_FIFO_CHARS;
                 the_port->ops = &ioc4_ops;
                 the_port->irq = control->ic_irq;
                 the_port->dev = &pdev->dev;
+                spin_lock_init(&the_port->lock);
                 if (uart_add_one_port(&ioc4_uart, the_port) < 0) {
                         printk(KERN_WARNING
-                                       "%s: unable to add port %d\n",
-                                       __FUNCTION__, the_port->line);
+                           "%s: unable to add port %d bus %d\n",
+                               __FUNCTION__, the_port->line, pdev->bus->number);
                 } else {
                         DPRINT_CONFIG(
-                                    ("IOC4 serial driver port %d irq = %d\n",
-                                       the_port->line, the_port->irq));
+                            ("IOC4 serial port %d irq = %d, bus %d\n",
+                               the_port->line, the_port->irq, pdev->bus->number));
                 }
                 /* all ports are rs232 for now */
                 ioc4_set_proto(port, PROTO_RS232);
@@ -2734,6 +2740,8 @@ ioc4_serial_attach_one(struct ioc4_driver_data *idd)
         if ((ret = ioc4_serial_core_attach(idd->idd_pdev)))
                 goto out4;
 
+        Num_of_ioc4_cards++;
+
         return ret;
 
         /* error exits that give back resources */
diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c
index efe79b1fd431..aec83f577ce6 100644
--- a/drivers/serial/mpsc.c
+++ b/drivers/serial/mpsc.c
@@ -1100,6 +1100,8 @@ mpsc_start_rx(struct mpsc_port_info *pi)
 {
         pr_debug("mpsc_start_rx[%d]: Starting...\n", pi->port.line);
 
+        /* Issue a Receive Abort to clear any receive errors */
+        writel(MPSC_CHR_2_RA, pi->mpsc_base + MPSC_CHR_2);
         if (pi->rcv_data) {
                 mpsc_enter_hunt(pi);
                 mpsc_sdma_cmd(pi, SDMA_SDCM_ERD);
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 2d8622eef701..401d94a7fe2e 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -147,8 +147,7 @@ static int uart_startup(struct uart_state *state, int init_hw)
          * once we have successfully opened the port.  Also set
          * up the tty->alt_speed kludge
          */
-        if (info->tty)
-                set_bit(TTY_IO_ERROR, &info->tty->flags);
+        set_bit(TTY_IO_ERROR, &info->tty->flags);
 
         if (port->type == PORT_UNKNOWN)
                 return 0;
diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c
index f056276b08a1..28757cb9d246 100644
--- a/drivers/sh/superhyway/superhyway.c
+++ b/drivers/sh/superhyway/superhyway.c
@@ -16,6 +16,8 @@
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/superhyway.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 static int superhyway_devices;
 
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 45efeed1fcc3..49815ec4b842 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -14,6 +14,9 @@
  * This file is licenced under the GPL.
  */
 
+#include <linux/signal.h>       /* SA_INTERRUPT */
+#include <linux/jiffies.h>
+
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/mach-types.h>
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index bf1d5ab4aa3a..7ce1d9ef0289 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -14,6 +14,8 @@
  * This file is licenced under the GPL.
  */
  
+#include <linux/jiffies.h>
+
 #ifdef CONFIG_PPC_PMAC
 #include <asm/machdep.h>
 #include <asm/pmac_feature.h>
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index d287dcccd415..f4a4aeda40b7 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -20,6 +20,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/signal.h>
 #include <asm/mach-types.h>
 #include <asm/hardware.h>
 #include <asm/arch/pxa-regs.h>
diff --git a/drivers/usb/input/pid.c b/drivers/usb/input/pid.c
index a00672c96644..dca5ee93a4ef 100644
--- a/drivers/usb/input/pid.c
+++ b/drivers/usb/input/pid.c
@@ -198,7 +198,7 @@ static int hid_pid_upload_effect(struct input_dev *dev,
                 }
 
                 effect->id = id;
-                dev_dbg(&pid_private->hid->dev->dev, "effect ID is %d\n.", id);
+                dev_dbg(&pid_private->hid->dev->dev, "effect ID is %d.\n", id);
                 pid_private->effects[id].owner = current->pid;
                 pid_private->effects[id].flags = (1 << FF_PID_FLAGS_USED);
                 spin_unlock_irqrestore(&pid_private->lock, flags);
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 7e297947a2b2..7192b770bfb6 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -494,7 +494,7 @@ config FB_TGA
 
 config FB_VESA
         bool "VESA VGA graphics support"
-        depends on (FB = y) && (X86 || X86_64)
+        depends on (FB = y) && X86
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
         select FB_CFB_IMAGEBLIT
@@ -712,7 +712,7 @@ config FB_RIVA_DEBUG
 
 config FB_I810
         tristate "Intel 810/815 support (EXPERIMENTAL)"
-        depends on FB && EXPERIMENTAL && PCI && X86 && !X86_64
+        depends on FB && EXPERIMENTAL && PCI && X86_32
         select AGP
         select AGP_INTEL
         select FB_MODE_HELPERS
@@ -761,7 +761,7 @@ config FB_I810_I2C
 
 config FB_INTEL
         tristate "Intel 830M/845G/852GM/855GM/865G support (EXPERIMENTAL)"
-        depends on FB && EXPERIMENTAL && PCI && X86 && !X86_64
+        depends on FB && EXPERIMENTAL && PCI && X86_32
         select AGP
         select AGP_INTEL
         select FB_MODE_HELPERS
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 7e731691e2a9..6a9ae2b3d1ab 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -28,7 +28,7 @@ config VGA_CONSOLE
 
 config VIDEO_SELECT
         bool "Video mode selection support"
-        depends on  (X86 || X86_64) && VGA_CONSOLE
+        depends on  X86 && VGA_CONSOLE
         ---help---
           This enables support for text mode selection on kernel startup. If
           you want to take advantage of some high-resolution text mode your
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 809fee2140ac..56cd199605f4 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -579,6 +579,7 @@ static void vga_set_palette(struct vc_data *vc, unsigned char *table)
 {
         int i, j;
 
+        vga_w(state.vgabase, VGA_PEL_MSK, 0xff);
         for (i = j = 0; i < 16; i++) {
                 vga_w(state.vgabase, VGA_PEL_IW, table[i]);
                 vga_w(state.vgabase, VGA_PEL_D, vc->vc_palette[j++] >> 2);
@@ -721,6 +722,7 @@ static void vga_pal_blank(struct vgastate *state)
 {
         int i;
 
+        vga_w(state->vgabase, VGA_PEL_MSK, 0xff);
         for (i = 0; i < 16; i++) {
                 vga_w(state->vgabase, VGA_PEL_IW, i);
                 vga_w(state->vgabase, VGA_PEL_D, 0);
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 9073be4221a8..e2667ddab3f1 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -918,7 +918,7 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
         }
 #endif
 #elif defined(__powerpc__)
-        vma->vm_page_prot = phys_mem_access_prot(file, off,
+        vma->vm_page_prot = phys_mem_access_prot(file, off >> PAGE_SHIFT,
                                                  vma->vm_end - vma->vm_start,
                                                  vma->vm_page_prot);
 #elif defined(__alpha__)
diff --git a/drivers/w1/w1_family.c b/drivers/w1/w1_family.c
index 88c517a4c178..9e293e139a0e 100644
--- a/drivers/w1/w1_family.c
+++ b/drivers/w1/w1_family.c
@@ -21,6 +21,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/list.h>
+#include <linux/sched.h>        /* schedule_timeout() */
 #include <linux/delay.h>
 
 #include "w1_family.h"
diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
index 04ca8840acf1..87c29d7b6c17 100644
--- a/drivers/zorro/zorro-sysfs.c
+++ b/drivers/zorro/zorro-sysfs.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/zorro.h>
 #include <linux/stat.h>
+#include <linux/string.h>
 
 #include "zorro.h"
 
diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c
index d3c05dfe20d2..0f2b40605b06 100644
--- a/drivers/zorro/zorro.c
+++ b/drivers/zorro/zorro.c
@@ -16,6 +16,8 @@
 #include <linux/init.h>
 #include <linux/zorro.h>
 #include <linux/bitops.h>
+#include <linux/string.h>
+
 #include <asm/setup.h>
 #include <asm/amigahw.h>
 
diff --git a/fs/Kconfig b/fs/Kconfig
index 48f5422cb19a..01a295232f75 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -810,7 +810,7 @@ config TMPFS
 
 config HUGETLBFS
         bool "HugeTLB file system support"
-        depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || X86_64 || BROKEN
+        depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN
 
 config HUGETLB_PAGE
         def_bool HUGETLBFS
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 434c19d076ac..175b2e8177c1 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -57,7 +57,7 @@ config BINFMT_SHARED_FLAT
 
 config BINFMT_AOUT
         tristate "Kernel support for a.out and ECOFF binaries"
-        depends on (X86 && !X86_64) || ALPHA || ARM || M68K || SPARC32
+        depends on X86_32 || ALPHA || ARM || M68K || SPARC32
         ---help---
           A.out (Assembler.OUTput) is a set of formats for libraries and
           executables used in the earliest versions of UNIX.  Linux used
diff --git a/fs/attr.c b/fs/attr.c
index b1796fb9e524..67bcd9b14ea5 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -117,9 +117,6 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
         struct timespec now;
         unsigned int ia_valid = attr->ia_valid;
 
-        if (!inode)
-                BUG();
-
         mode = inode->i_mode;
         now = current_fs_time(inode->i_sb);
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 918ccc267e41..6fa6adc40972 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1502,9 +1502,7 @@ static int elf_core_dump(long signr, struct pt_regs * regs, struct file * file)
         fill_psinfo(psinfo, current->group_leader, current->mm);
         fill_note(notes +1, "CORE", NT_PRPSINFO, sizeof(*psinfo), psinfo);
         
-        fill_note(notes +2, "CORE", NT_TASKSTRUCT, sizeof(*current), current);
-  
-        numnote = 3;
+        numnote = 2;
 
         auxv = (elf_addr_t *) current->mm->saved_auxv;
 
diff --git a/fs/buffer.c b/fs/buffer.c
index 2066e4cb700c..35fa34977e81 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1478,8 +1478,10 @@ EXPORT_SYMBOL(__getblk);
 void __breadahead(struct block_device *bdev, sector_t block, int size)
 {
         struct buffer_head *bh = __getblk(bdev, block, size);
-        ll_rw_block(READA, 1, &bh);
-        brelse(bh);
+        if (likely(bh)) {
+                ll_rw_block(READA, 1, &bh);
+                brelse(bh);
+        }
 }
 EXPORT_SYMBOL(__breadahead);
 
@@ -1497,7 +1499,7 @@ __bread(struct block_device *bdev, sector_t block, int size)
 {
         struct buffer_head *bh = __getblk(bdev, block, size);
 
-        if (!buffer_uptodate(bh))
+        if (likely(bh) && !buffer_uptodate(bh))
                 bh = __bread_slow(bh);
         return bh;
 }
@@ -1637,6 +1639,15 @@ out:
 }
 EXPORT_SYMBOL(block_invalidatepage);
 
+int do_invalidatepage(struct page *page, unsigned long offset)
+{
+        int (*invalidatepage)(struct page *, unsigned long);
+        invalidatepage = page->mapping->a_ops->invalidatepage;
+        if (invalidatepage == NULL)
+                invalidatepage = block_invalidatepage;
+        return (*invalidatepage)(page, offset);
+}
+
 /*
  * We attach and possibly dirty the buffers atomically wrt
  * __set_page_dirty_buffers() via private_lock.  try_to_free_buffers
@@ -2696,7 +2707,7 @@ int block_write_full_page(struct page *page, get_block_t *get_block,
                  * they may have been added in ext3_writepage().  Make them
                  * freeable here, so the page does not leak.
                  */
-                block_invalidatepage(page, 0);
+                do_invalidatepage(page, 0);
                 unlock_page(page);
                 return 0; /* don't care */
         }
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index a327e03753ac..43dbcb0b21eb 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -3046,6 +3046,10 @@ HANDLE_IOCTL(RAW_GETBIND, raw_ioctl)
 /* Serial */
 HANDLE_IOCTL(TIOCGSERIAL, serial_struct_ioctl)
 HANDLE_IOCTL(TIOCSSERIAL, serial_struct_ioctl)
+#ifdef TIOCGLTC
+COMPATIBLE_IOCTL(TIOCGLTC)
+COMPATIBLE_IOCTL(TIOCSLTC)
+#endif
 /* Usbdevfs */
 HANDLE_IOCTL(USBDEVFS_CONTROL32, do_usbdevfs_control)
 HANDLE_IOCTL(USBDEVFS_BULK32, do_usbdevfs_bulk)
diff --git a/fs/dquot.c b/fs/dquot.c
index 05f3327d64a3..ea7644227a65 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -662,7 +662,7 @@ static void add_dquot_ref(struct super_block *sb, int type)
 restart:
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file *filp = list_entry(p, struct file, f_list);
+                struct file *filp = list_entry(p, struct file, f_u.fu_list);
                 struct inode *inode = filp->f_dentry->d_inode;
                 if (filp->f_mode & FMODE_WRITE && dqinit_needed(inode, type)) {
                         struct dentry *dentry = dget(filp->f_dentry);
diff --git a/fs/exec.c b/fs/exec.c
index ba73797eb4cb..10d493fea7ce 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -630,10 +630,9 @@ static inline int de_thread(struct task_struct *tsk)
         /*
          * Account for the thread group leader hanging around:
          */
-        count = 2;
-        if (thread_group_leader(current))
-                count = 1;
-        else {
+        count = 1;
+        if (!thread_group_leader(current)) {
+                count = 2;
                 /*
                  * The SIGALRM timer survives the exec, but needs to point
                  * at us as the new group leader now.  We have a race with
@@ -642,8 +641,10 @@ static inline int de_thread(struct task_struct *tsk)
                  * before we can safely let the old group leader die.
                  */
                 sig->real_timer.data = (unsigned long)current;
+                spin_unlock_irq(lock);
                 if (del_timer_sync(&sig->real_timer))
                         add_timer(&sig->real_timer);
+                spin_lock_irq(lock);
         }
         while (atomic_read(&sig->count) > count) {
                 sig->group_exit_task = current;
@@ -655,7 +656,6 @@ static inline int de_thread(struct task_struct *tsk)
         }
         sig->group_exit_task = NULL;
         sig->notify_count = 0;
-        sig->real_timer.data = (unsigned long)current;
         spin_unlock_irq(lock);
 
         /*
@@ -1417,19 +1417,16 @@ static void zap_threads (struct mm_struct *mm)
 static void coredump_wait(struct mm_struct *mm)
 {
         DECLARE_COMPLETION(startup_done);
+        int core_waiters;
 
-        mm->core_waiters++; /* let other threads block */
         mm->core_startup_done = &startup_done;
 
-        /* give other threads a chance to run: */
-        yield();
-
         zap_threads(mm);
-        if (--mm->core_waiters) {
-                up_write(&mm->mmap_sem);
+        core_waiters = mm->core_waiters;
+        up_write(&mm->mmap_sem);
+
+        if (core_waiters)
                 wait_for_completion(&startup_done);
-        } else
-                up_write(&mm->mmap_sem);
         BUG_ON(mm->core_waiters);
 }
 
@@ -1463,11 +1460,21 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
                 current->fsuid = 0;     /* Dump root private */
         }
         mm->dumpable = 0;
-        init_completion(&mm->core_done);
+
+        retval = -EAGAIN;
         spin_lock_irq(&current->sighand->siglock);
-        current->signal->flags = SIGNAL_GROUP_EXIT;
-        current->signal->group_exit_code = exit_code;
+        if (!(current->signal->flags & SIGNAL_GROUP_EXIT)) {
+                current->signal->flags = SIGNAL_GROUP_EXIT;
+                current->signal->group_exit_code = exit_code;
+                retval = 0;
+        }
         spin_unlock_irq(&current->sighand->siglock);
+        if (retval) {
+                up_write(&mm->mmap_sem);
+                goto fail;
+        }
+
+        init_completion(&mm->core_done);
         coredump_wait(mm);
 
         /*
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index fdba4d1d3c60..e7d3f0522d01 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -440,6 +440,10 @@ static int ext2_alloc_branch(struct inode *inode,
                  * the pointer to new one, then send parent to disk.
                  */
                 bh = sb_getblk(inode->i_sb, parent);
+                if (!bh) {
+                        err = -EIO;
+                        break;
+                }
                 lock_buffer(bh);
                 memset(bh->b_data, 0, blocksize);
                 branch[n].bh = bh;
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 0213db4911a2..7992d21e0e09 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -20,6 +20,8 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 
+#include "bitmap.h"
+
 /*
  * balloc.c contains the blocks allocation and deallocation routines
  */
@@ -1010,7 +1012,7 @@ retry:
  * allocation within the reservation window.
  *
  * This will avoid keeping on searching the reservation list again and
- * again when someboday is looking for a free block (without
+ * again when somebody is looking for a free block (without
  * reservation), and there are lots of free blocks, but they are all
  * being reserved.
  *
@@ -1416,12 +1418,12 @@ unsigned long ext3_count_free_blocks(struct super_block *sb)
         unsigned long bitmap_count, x;
         struct buffer_head *bitmap_bh = NULL;
 
-        lock_super(sb);
         es = EXT3_SB(sb)->s_es;
         desc_count = 0;
         bitmap_count = 0;
         gdp = NULL;
 
+        smp_rmb();
         for (i = 0; i < ngroups; i++) {
                 gdp = ext3_get_group_desc(sb, i, NULL);
                 if (!gdp)
@@ -1440,7 +1442,6 @@ unsigned long ext3_count_free_blocks(struct super_block *sb)
         brelse(bitmap_bh);
         printk("ext3_count_free_blocks: stored = %u, computed = %lu, %lu\n",
                le32_to_cpu(es->s_free_blocks_count), desc_count, bitmap_count);
-        unlock_super(sb);
         return bitmap_count;
 #else
         desc_count = 0;
diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c
index 6c419b9ab0e8..5b4ba3e246e6 100644
--- a/fs/ext3/bitmap.c
+++ b/fs/ext3/bitmap.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/buffer_head.h>
-
+#include "bitmap.h"
 
 static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
 
diff --git a/fs/ext3/bitmap.h b/fs/ext3/bitmap.h
new file mode 100644
index 000000000000..6ee503a6bb4e
--- /dev/null
+++ b/fs/ext3/bitmap.h
@@ -0,0 +1,8 @@
+/*  linux/fs/ext3/bitmap.c
+ *
+ * Copyright (C) 2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+*/
+
+extern unsigned long ext3_count_free (struct buffer_head *, unsigned int );
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 6549945f9ac1..df3f517c54ac 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -26,6 +26,7 @@
 
 #include <asm/byteorder.h>
 
+#include "bitmap.h"
 #include "xattr.h"
 #include "acl.h"
 
@@ -704,7 +705,6 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
         unsigned long bitmap_count, x;
         struct buffer_head *bitmap_bh = NULL;
 
-        lock_super (sb);
         es = EXT3_SB(sb)->s_es;
         desc_count = 0;
         bitmap_count = 0;
@@ -727,7 +727,6 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
         brelse(bitmap_bh);
         printk("ext3_count_free_inodes: stored = %u, computed = %lu, %lu\n",
                 le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
-        unlock_super(sb);
         return desc_count;
 #else
         desc_count = 0;
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 8b38f2232796..5d9b00e28837 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -491,7 +491,7 @@ static unsigned long ext3_find_goal(struct inode *inode, long block,
  *      the same format as ext3_get_branch() would do. We are calling it after
  *      we had read the existing part of chain and partial points to the last
  *      triple of that (one with zero ->key). Upon the exit we have the same
- *      picture as after the successful ext3_get_block(), excpet that in one
+ *      picture as after the successful ext3_get_block(), except that in one
  *      place chain is disconnected - *branch->p is still zero (we did not
  *      set the last link), but branch->key contains the number that should
  *      be placed into *branch->p to fill that gap.
@@ -523,7 +523,6 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
                         if (!nr)
                                 break;
                         branch[n].key = cpu_to_le32(nr);
-                        keys = n+1;
 
                         /*
                          * Get buffer_head for parent block, zero it out
@@ -531,6 +530,9 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
                          * parent to disk.  
                          */
                         bh = sb_getblk(inode->i_sb, parent);
+                        if (!bh)
+                                break;
+                        keys = n+1;
                         branch[n].bh = bh;
                         lock_buffer(bh);
                         BUFFER_TRACE(bh, "call get_create_access");
@@ -864,6 +866,10 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode * inode,
         if (!*errp && buffer_mapped(&dummy)) {
                 struct buffer_head *bh;
                 bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
+                if (!bh) {
+                        *errp = -EIO;
+                        goto err;
+                }
                 if (buffer_new(&dummy)) {
                         J_ASSERT(create != 0);
                         J_ASSERT(handle != 0);
@@ -896,6 +902,7 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode * inode,
                 }
                 return bh;
         }
+err:
         return NULL;
 }
 
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 50378d8ff84b..b3c690a3b54a 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -36,6 +36,8 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 #include <linux/smp_lock.h>
+
+#include "namei.h"
 #include "xattr.h"
 #include "acl.h"
 
diff --git a/fs/ext3/namei.h b/fs/ext3/namei.h
new file mode 100644
index 000000000000..f2ce2b0065c9
--- /dev/null
+++ b/fs/ext3/namei.h
@@ -0,0 +1,8 @@
+/*  linux/fs/ext3/namei.h
+ *
+ * Copyright (C) 2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+*/
+
+extern struct dentry *ext3_get_parent(struct dentry *child);
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 57f79106267d..1be78b4b4de9 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -118,6 +118,8 @@ static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
         int err;
 
         bh = sb_getblk(sb, blk);
+        if (!bh)
+                return ERR_PTR(-EIO);
         if ((err = ext3_journal_get_write_access(handle, bh))) {
                 brelse(bh);
                 bh = ERR_PTR(err);
@@ -202,6 +204,10 @@ static int setup_new_group_blocks(struct super_block *sb,
                 ext3_debug("update backup group %#04lx (+%d)\n", block, bit);
 
                 gdb = sb_getblk(sb, block);
+                if (!gdb) {
+                        err = -EIO;
+                        goto exit_bh;
+                }
                 if ((err = ext3_journal_get_write_access(handle, gdb))) {
                         brelse(gdb);
                         goto exit_bh;
@@ -643,6 +649,10 @@ static void update_backups(struct super_block *sb,
                         break;
 
                 bh = sb_getblk(sb, group * bpg + blk_off);
+                if (!bh) {
+                        err = -EIO;
+                        break;
+                }
                 ext3_debug("update metadata backup %#04lx\n",
                           (unsigned long)bh->b_blocknr);
                 if ((err = ext3_journal_get_write_access(handle, bh)))
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 097383c11154..f594989ccb7a 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -36,9 +36,12 @@
 #include <linux/namei.h>
 #include <linux/quotaops.h>
 #include <linux/seq_file.h>
+
 #include <asm/uaccess.h>
+
 #include "xattr.h"
 #include "acl.h"
+#include "namei.h"
 
 static int ext3_load_journal(struct super_block *, struct ext3_super_block *);
 static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
@@ -615,7 +618,6 @@ static struct super_operations ext3_sops = {
 #endif
 };
 
-struct dentry *ext3_get_parent(struct dentry *child);
 static struct export_operations ext3_export_ops = {
         .get_parent = ext3_get_parent,
 };
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 269c7b92db9a..430de9f63be3 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -210,7 +210,7 @@ ext3_xattr_find_entry(struct ext3_xattr_entry **pentry, int name_index,
         return cmp ? -ENODATA : 0;
 }
 
-int
+static int
 ext3_xattr_block_get(struct inode *inode, int name_index, const char *name,
                      void *buffer, size_t buffer_size)
 {
@@ -354,7 +354,7 @@ ext3_xattr_list_entries(struct inode *inode, struct ext3_xattr_entry *entry,
         return buffer_size - rest;
 }
 
-int
+static int
 ext3_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
 {
         struct buffer_head *bh = NULL;
@@ -626,7 +626,7 @@ struct ext3_xattr_block_find {
         struct buffer_head *bh;
 };
 
-int
+static int
 ext3_xattr_block_find(struct inode *inode, struct ext3_xattr_info *i,
                       struct ext3_xattr_block_find *bs)
 {
@@ -859,7 +859,7 @@ struct ext3_xattr_ibody_find {
         struct ext3_iloc iloc;
 };
 
-int
+static int
 ext3_xattr_ibody_find(struct inode *inode, struct ext3_xattr_info *i,
                       struct ext3_xattr_ibody_find *is)
 {
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 895049b2ac9c..ba824964b9bb 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -222,6 +222,80 @@ fat_shortname2uni(struct nls_table *nls, unsigned char *buf, int buf_size,
         return len;
 }
 
+enum { PARSE_INVALID = 1, PARSE_NOT_LONGNAME, PARSE_EOF, };
+
+/**
+ * fat_parse_long - Parse extended directory entry.
+ *
+ * This function returns zero on success, negative value on error, or one of
+ * the following:
+ *
+ * %PARSE_INVALID - Directory entry is invalid.
+ * %PARSE_NOT_LONGNAME - Directory entry does not contain longname.
+ * %PARSE_EOF - Directory has no more entries.
+ */
+static int fat_parse_long(struct inode *dir, loff_t *pos,
+                          struct buffer_head **bh, struct msdos_dir_entry **de,
+                          wchar_t **unicode, unsigned char *nr_slots)
+{
+        struct msdos_dir_slot *ds;
+        unsigned char id, slot, slots, alias_checksum;
+
+        if (!*unicode) {
+                *unicode = (wchar_t *)__get_free_page(GFP_KERNEL);
+                if (!*unicode) {
+                        brelse(*bh);
+                        return -ENOMEM;
+                }
+        }
+parse_long:
+        slots = 0;
+        ds = (struct msdos_dir_slot *)*de;
+        id = ds->id;
+        if (!(id & 0x40))
+                return PARSE_INVALID;
+        slots = id & ~0x40;
+        if (slots > 20 || !slots)       /* ceil(256 * 2 / 26) */
+                return PARSE_INVALID;
+        *nr_slots = slots;
+        alias_checksum = ds->alias_checksum;
+
+        slot = slots;
+        while (1) {
+                int offset;
+
+                slot--;
+                offset = slot * 13;
+                fat16_towchar(*unicode + offset, ds->name0_4, 5);
+                fat16_towchar(*unicode + offset + 5, ds->name5_10, 6);
+                fat16_towchar(*unicode + offset + 11, ds->name11_12, 2);
+
+                if (ds->id & 0x40)
+                        (*unicode)[offset + 13] = 0;
+                if (fat_get_entry(dir, pos, bh, de) < 0)
+                        return PARSE_EOF;
+                if (slot == 0)
+                        break;
+                ds = (struct msdos_dir_slot *)*de;
+                if (ds->attr != ATTR_EXT)
+                        return PARSE_NOT_LONGNAME;
+                if ((ds->id & ~0x40) != slot)
+                        goto parse_long;
+                if (ds->alias_checksum != alias_checksum)
+                        goto parse_long;
+        }
+        if ((*de)->name[0] == DELETED_FLAG)
+                return PARSE_INVALID;
+        if ((*de)->attr == ATTR_EXT)
+                goto parse_long;
+        if (IS_FREE((*de)->name) || ((*de)->attr & ATTR_VOLUME))
+                return PARSE_INVALID;
+        if (fat_checksum((*de)->name) != alias_checksum)
+                *nr_slots = 0;
+
+        return 0;
+}
+
 /*
  * Return values: negative -> error, 0 -> not found, positive -> found,
  * value is the total amount of slots, including the shortname entry.
@@ -259,68 +333,16 @@ parse_record:
                 if (de->attr != ATTR_EXT && IS_FREE(de->name))
                         continue;
                 if (de->attr == ATTR_EXT) {
-                        struct msdos_dir_slot *ds;
-                        unsigned char id;
-                        unsigned char slot;
-                        unsigned char slots;
-                        unsigned char sum;
-                        unsigned char alias_checksum;
-
-                        if (!unicode) {
-                                unicode = (wchar_t *)
-                                        __get_free_page(GFP_KERNEL);
-                                if (!unicode) {
-                                        brelse(bh);
-                                        return -ENOMEM;
-                                }
-                        }
-parse_long:
-                        slots = 0;
-                        ds = (struct msdos_dir_slot *) de;
-                        id = ds->id;
-                        if (!(id & 0x40))
-                                continue;
-                        slots = id & ~0x40;
-                        if (slots > 20 || !slots)       /* ceil(256 * 2 / 26) */
-                                continue;
-                        nr_slots = slots;
-                        alias_checksum = ds->alias_checksum;
-
-                        slot = slots;
-                        while (1) {
-                                int offset;
-
-                                slot--;
-                                offset = slot * 13;
-                                fat16_towchar(unicode + offset, ds->name0_4, 5);
-                                fat16_towchar(unicode + offset + 5, ds->name5_10, 6);
-                                fat16_towchar(unicode + offset + 11, ds->name11_12, 2);
-
-                                if (ds->id & 0x40) {
-                                        unicode[offset + 13] = 0;
-                                }
-                                if (fat_get_entry(inode, &cpos, &bh, &de) < 0)
-                                        goto EODir;
-                                if (slot == 0)
-                                        break;
-                                ds = (struct msdos_dir_slot *) de;
-                                if (ds->attr !=  ATTR_EXT)
-                                        goto parse_record;
-                                if ((ds->id & ~0x40) != slot)
-                                        goto parse_long;
-                                if (ds->alias_checksum != alias_checksum)
-                                        goto parse_long;
-                        }
-                        if (de->name[0] == DELETED_FLAG)
-                                continue;
-                        if (de->attr ==  ATTR_EXT)
-                                goto parse_long;
-                        if (IS_FREE(de->name) || (de->attr & ATTR_VOLUME))
+                        int status = fat_parse_long(inode, &cpos, &bh, &de,
+                                                    &unicode, &nr_slots);
+                        if (status < 0)
+                                return status;
+                        else if (status == PARSE_INVALID)
                                 continue;
-                        for (sum = 0, i = 0; i < 11; i++)
-                                sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + de->name[i];
-                        if (sum != alias_checksum)
-                                nr_slots = 0;
+                        else if (status == PARSE_NOT_LONGNAME)
+                                goto parse_record;
+                        else if (status == PARSE_EOF)
+                                goto EODir;
                 }
 
                 memcpy(work, de->name, sizeof(de->name));
@@ -408,8 +430,8 @@ struct fat_ioctl_filldir_callback {
         int short_len;
 };
 
-static int fat_readdirx(struct inode *inode, struct file *filp, void *dirent,
-                        filldir_t filldir, int short_only, int both)
+static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
+                         filldir_t filldir, int short_only, int both)
 {
         struct super_block *sb = inode->i_sb;
         struct msdos_sb_info *sbi = MSDOS_SB(sb);
@@ -458,9 +480,10 @@ static int fat_readdirx(struct inode *inode, struct file *filp, void *dirent,
 
         bh = NULL;
 GetNew:
-        long_slots = 0;
         if (fat_get_entry(inode, &cpos, &bh, &de) == -1)
                 goto EODir;
+parse_record:
+        long_slots = 0;
         /* Check for long filename entry */
         if (isvfat) {
                 if (de->name[0] == DELETED_FLAG)
@@ -475,69 +498,18 @@ GetNew:
         }
 
         if (isvfat && de->attr == ATTR_EXT) {
-                struct msdos_dir_slot *ds;
-                unsigned char id;
-                unsigned char slot;
-                unsigned char slots;
-                unsigned char sum;
-                unsigned char alias_checksum;
-
-                if (!unicode) {
-                        unicode = (wchar_t *)__get_free_page(GFP_KERNEL);
-                        if (!unicode) {
-                                filp->f_pos = cpos;
-                                brelse(bh);
-                                ret = -ENOMEM;
-                                goto out;
-                        }
-                }
-ParseLong:
-                slots = 0;
-                ds = (struct msdos_dir_slot *) de;
-                id = ds->id;
-                if (!(id & 0x40))
-                        goto RecEnd;
-                slots = id & ~0x40;
-                if (slots > 20 || !slots)       /* ceil(256 * 2 / 26) */
+                int status = fat_parse_long(inode, &cpos, &bh, &de,
+                                            &unicode, &long_slots);
+                if (status < 0) {
+                        filp->f_pos = cpos;
+                        ret = status;
+                        goto out;
+                } else if (status == PARSE_INVALID)
                         goto RecEnd;
-                long_slots = slots;
-                alias_checksum = ds->alias_checksum;
-
-                slot = slots;
-                while (1) {
-                        int offset;
-
-                        slot--;
-                        offset = slot * 13;
-                        fat16_towchar(unicode + offset, ds->name0_4, 5);
-                        fat16_towchar(unicode + offset + 5, ds->name5_10, 6);
-                        fat16_towchar(unicode + offset + 11, ds->name11_12, 2);
-
-                        if (ds->id & 0x40) {
-                                unicode[offset + 13] = 0;
-                        }
-                        if (fat_get_entry(inode, &cpos, &bh, &de) == -1)
-                                goto EODir;
-                        if (slot == 0)
-                                break;
-                        ds = (struct msdos_dir_slot *) de;
-                        if (ds->attr !=  ATTR_EXT)
-                                goto RecEnd;    /* XXX */
-                        if ((ds->id & ~0x40) != slot)
-                                goto ParseLong;
-                        if (ds->alias_checksum != alias_checksum)
-                                goto ParseLong;
-                }
-                if (de->name[0] == DELETED_FLAG)
-                        goto RecEnd;
-                if (de->attr ==  ATTR_EXT)
-                        goto ParseLong;
-                if (IS_FREE(de->name) || (de->attr & ATTR_VOLUME))
-                        goto RecEnd;
-                for (sum = 0, i = 0; i < 11; i++)
-                        sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + de->name[i];
-                if (sum != alias_checksum)
-                        long_slots = 0;
+                else if (status == PARSE_NOT_LONGNAME)
+                        goto parse_record;
+                else if (status == PARSE_EOF)
+                        goto EODir;
         }
 
         if (sbi->options.dotsOK) {
@@ -671,7 +643,7 @@ out:
 static int fat_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
         struct inode *inode = filp->f_dentry->d_inode;
-        return fat_readdirx(inode, filp, dirent, filldir, 0, 0);
+        return __fat_readdir(inode, filp, dirent, filldir, 0, 0);
 }
 
 static int fat_ioctl_filldir(void *__buf, const char *name, int name_len,
@@ -760,8 +732,8 @@ static int fat_dir_ioctl(struct inode * inode, struct file * filp,
         down(&inode->i_sem);
         ret = -ENOENT;
         if (!IS_DEADDIR(inode)) {
-                ret = fat_readdirx(inode, filp, &buf, fat_ioctl_filldir,
-                                   short_only, both);
+                ret = __fat_readdir(inode, filp, &buf, fat_ioctl_filldir,
+                                    short_only, both);
         }
         up(&inode->i_sem);
         if (ret >= 0)
diff --git a/fs/file_table.c b/fs/file_table.c
index 86ec8ae985b4..4dc205546547 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -56,13 +56,13 @@ void filp_dtor(void * objp, struct kmem_cache_s *cachep, unsigned long dflags)
 
 static inline void file_free_rcu(struct rcu_head *head)
 {
-        struct file *f =  container_of(head, struct file, f_rcuhead);
+        struct file *f =  container_of(head, struct file, f_u.fu_rcuhead);
         kmem_cache_free(filp_cachep, f);
 }
 
 static inline void file_free(struct file *f)
 {
-        call_rcu(&f->f_rcuhead, file_free_rcu);
+        call_rcu(&f->f_u.fu_rcuhead, file_free_rcu);
 }
 
 /* Find an unused file structure and return a pointer to it.
@@ -95,7 +95,7 @@ struct file *get_empty_filp(void)
         f->f_gid = current->fsgid;
         rwlock_init(&f->f_owner.lock);
         /* f->f_version: 0 */
-        INIT_LIST_HEAD(&f->f_list);
+        INIT_LIST_HEAD(&f->f_u.fu_list);
         return f;
 
 over:
@@ -225,15 +225,15 @@ void file_move(struct file *file, struct list_head *list)
         if (!list)
                 return;
         file_list_lock();
-        list_move(&file->f_list, list);
+        list_move(&file->f_u.fu_list, list);
         file_list_unlock();
 }
 
 void file_kill(struct file *file)
 {
-        if (!list_empty(&file->f_list)) {
+        if (!list_empty(&file->f_u.fu_list)) {
                 file_list_lock();
-                list_del_init(&file->f_list);
+                list_del_init(&file->f_u.fu_list);
                 file_list_unlock();
         }
 }
@@ -245,7 +245,7 @@ int fs_may_remount_ro(struct super_block *sb)
         /* Check that no files are currently opened for writing. */
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file *file = list_entry(p, struct file, f_list);
+                struct file *file = list_entry(p, struct file, f_u.fu_list);
                 struct inode *inode = file->f_dentry->d_inode;
 
                 /* File with pending delete? */
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 44082bfdfec9..9f1072836c8e 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -12,6 +12,7 @@
 #include <linux/kmod.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/sched.h>        /* for 'current' */
 #include <asm/uaccess.h>
 
 /*
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e94ab398b717..ffab4783ac64 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -230,7 +230,6 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
                          * The inode is clean, unused
                          */
                         list_move(&inode->i_list, &inode_unused);
-                        inodes_stat.nr_unused++;
                 }
         }
         wake_up_inode(inode);
@@ -238,14 +237,20 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
 }
 
 /*
- * Write out an inode's dirty pages.  Called under inode_lock.
+ * Write out an inode's dirty pages.  Called under inode_lock.  Either the
+ * caller has ref on the inode (either via __iget or via syscall against an fd)
+ * or the inode has I_WILL_FREE set (via generic_forget_inode)
  */
 static int
-__writeback_single_inode(struct inode *inode,
-                        struct writeback_control *wbc)
+__writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 {
         wait_queue_head_t *wqh;
 
+        if (!atomic_read(&inode->i_count))
+                WARN_ON(!(inode->i_state & I_WILL_FREE));
+        else
+                WARN_ON(inode->i_state & I_WILL_FREE);
+
         if ((wbc->sync_mode != WB_SYNC_ALL) && (inode->i_state & I_LOCK)) {
                 list_move(&inode->i_list, &inode->i_sb->s_dirty);
                 return 0;
@@ -259,11 +264,9 @@ __writeback_single_inode(struct inode *inode,
 
                 wqh = bit_waitqueue(&inode->i_state, __I_LOCK);
                 do {
-                        __iget(inode);
                         spin_unlock(&inode_lock);
                         __wait_on_bit(wqh, &wq, inode_wait,
                                                         TASK_UNINTERRUPTIBLE);
-                        iput(inode);
                         spin_lock(&inode_lock);
                 } while (inode->i_state & I_LOCK);
         }
@@ -541,14 +544,15 @@ void sync_inodes(int wait)
 }
 
 /**
- *      write_inode_now -       write an inode to disk
- *      @inode: inode to write to disk
- *      @sync: whether the write should be synchronous or not
+ * write_inode_now      -       write an inode to disk
+ * @inode: inode to write to disk
+ * @sync: whether the write should be synchronous or not
+ *
+ * This function commits an inode to disk immediately if it is dirty. This is
+ * primarily needed by knfsd.
  *
- *      This function commits an inode to disk immediately if it is
- *      dirty. This is primarily needed by knfsd.
+ * The caller must either have a ref on the inode or must have set I_WILL_FREE.
  */
- 
 int write_inode_now(struct inode *inode, int sync)
 {
         int ret;
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index d4c869c6d01b..a6f90a6c754a 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -151,9 +151,9 @@ void fuse_release_background(struct fuse_req *req)
 /*
  * This function is called when a request is finished.  Either a reply
  * has arrived or it was interrupted (and not yet sent) or some error
- * occured during communication with userspace, or the device file was
- * closed.  It decreases the referece count for the request.  In case
- * of a background request the referece to the stored objects are
+ * occurred during communication with userspace, or the device file was
+ * closed.  It decreases the reference count for the request.  In case
+ * of a background request the reference to the stored objects are
  * released.  The requester thread is woken up (if still waiting), and
  * finally the request is either freed or put on the unused_list
  *
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 29f1e9f6e85c..70dba721acab 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -741,13 +741,14 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
         if (inode && S_ISDIR(inode->i_mode)) {
                 /* Don't allow creating an alias to a directory  */
                 struct dentry *alias = d_find_alias(inode);
-                if (alias && !(alias->d_flags & DCACHE_DISCONNECTED)) {
+                if (alias) {
                         dput(alias);
                         iput(inode);
                         return ERR_PTR(-EIO);
                 }
         }
-        return d_splice_alias(inode, entry);
+        d_add(entry, inode);
+        return NULL;
 }
 
 static int fuse_setxattr(struct dentry *entry, const char *name,
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 24d761518d86..5cb456f572c1 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -349,22 +349,22 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
                       int isdir);
 
 /**
- * Initialise file operations on a regular file
+ * Initialize file operations on a regular file
  */
 void fuse_init_file_inode(struct inode *inode);
 
 /**
- * Initialise inode operations on regular files and special files
+ * Initialize inode operations on regular files and special files
  */
 void fuse_init_common(struct inode *inode);
 
 /**
- * Initialise inode and file operations on a directory
+ * Initialize inode and file operations on a directory
  */
 void fuse_init_dir(struct inode *inode);
 
 /**
- * Initialise inode operations on a symlink
+ * Initialize inode operations on a symlink
  */
 void fuse_init_symlink(struct inode *inode);
 
@@ -411,7 +411,7 @@ struct fuse_req *fuse_get_request(struct fuse_conn *fc);
 
 /**
  * Decrement reference count of a request.  If count goes to zero put
- * on unused list (preallocated) or free reqest (not preallocated).
+ * on unused list (preallocated) or free request (not preallocated).
  */
 void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req);
 
@@ -431,7 +431,7 @@ void request_send_noreply(struct fuse_conn *fc, struct fuse_req *req);
 void request_send_background(struct fuse_conn *fc, struct fuse_req *req);
 
 /**
- * Release inodes and file assiciated with background request
+ * Release inodes and file associated with background request
  */
 void fuse_release_background(struct fuse_req *req);
 
diff --git a/fs/inode.c b/fs/inode.c
index 7d3316527767..d8d04bd72b59 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1088,6 +1088,7 @@ static void generic_forget_inode(struct inode *inode)
         if (inode->i_data.nrpages)
                 truncate_inode_pages(&inode->i_data, 0);
         clear_inode(inode);
+        wake_up_inode(inode);
         destroy_inode(inode);
 }
 
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 0f224384f176..8210ac16a368 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -15,6 +15,7 @@
 #include <linux/jffs2.h>
 #include <linux/mtd/mtd.h>
 #include <linux/completion.h>
+#include <linux/sched.h>
 #include "nodelist.h"
 
 
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 996d922e503e..316133c626b7 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -18,6 +18,8 @@
 #include <linux/mtd/mtd.h>
 #include <linux/crc32.h>
 #include <linux/mtd/nand.h>
+#include <linux/jiffies.h>
+
 #include "nodelist.h"
 
 /* For testing write failures */
diff --git a/fs/msdos/namei.c b/fs/msdos/namei.c
index 154f511c7245..626a367bcd81 100644
--- a/fs/msdos/namei.c
+++ b/fs/msdos/namei.c
@@ -454,10 +454,10 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
 {
         struct buffer_head *dotdot_bh;
         struct msdos_dir_entry *dotdot_de;
-        loff_t dotdot_i_pos;
         struct inode *old_inode, *new_inode;
         struct fat_slot_info old_sinfo, sinfo;
         struct timespec ts;
+        loff_t dotdot_i_pos, new_i_pos;
         int err, old_attrs, is_dir, update_dotdot, corrupt = 0;
 
         old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
@@ -516,28 +516,24 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
         if (new_inode) {
                 if (err)
                         goto out;
-                if (MSDOS_I(new_inode)->i_pos != sinfo.i_pos) {
-                        /* WTF??? Cry and fail. */
-                        printk(KERN_WARNING "msdos_rename: fs corrupted\n");
-                        goto out;
-                }
-
                 if (is_dir) {
                         err = fat_dir_empty(new_inode);
                         if (err)
                                 goto out;
                 }
+                new_i_pos = MSDOS_I(new_inode)->i_pos;
                 fat_detach(new_inode);
         } else {
                 err = msdos_add_entry(new_dir, new_name, is_dir, is_hid, 0,
                                       &ts, &sinfo);
                 if (err)
                         goto out;
+                new_i_pos = sinfo.i_pos;
         }
         new_dir->i_version++;
 
         fat_detach(old_inode);
-        fat_attach(old_inode, sinfo.i_pos);
+        fat_attach(old_inode, new_i_pos);
         if (is_hid)
                 MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
         else
@@ -604,7 +600,7 @@ error_inode:
         fat_attach(old_inode, old_sinfo.i_pos);
         MSDOS_I(old_inode)->i_attrs = old_attrs;
         if (new_inode) {
-                fat_attach(new_inode, sinfo.i_pos);
+                fat_attach(new_inode, new_i_pos);
                 if (corrupt)
                         corrupt |= fat_sync_inode(new_inode);
         } else {
diff --git a/fs/namei.c b/fs/namei.c
index aaaa81036234..c5769c4fcab1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1311,9 +1311,6 @@ static inline int may_create(struct inode *dir, struct dentry *child,
 }
 
 /* 
- * Special case: O_CREAT|O_EXCL implies O_NOFOLLOW for security
- * reasons.
- *
  * O_DIRECTORY translates into forcing a directory lookup.
  */
 static inline int lookup_flags(unsigned int f)
@@ -1323,9 +1320,6 @@ static inline int lookup_flags(unsigned int f)
         if (f & O_NOFOLLOW)
                 retval &= ~LOOKUP_FOLLOW;
         
-        if ((f & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
-                retval &= ~LOOKUP_FOLLOW;
-        
         if (f & O_DIRECTORY)
                 retval |= LOOKUP_DIRECTORY;
 
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f2781ca42761..fc0f12ba89cc 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1274,14 +1274,12 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
         }
 
         if ((fattr->valid & NFS_ATTR_FATTR) == 0) {
-                spin_unlock(&inode->i_lock);
                 return 0;
         }
 
         /* Has the inode gone and changed behind our back? */
         if (nfsi->fileid != fattr->fileid
                         || (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
-                spin_unlock(&inode->i_lock);
                 return -EIO;
         }
 
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 8a8c34461d48..b638fb500743 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -533,7 +533,7 @@ static void proc_kill_inodes(struct proc_dir_entry *de)
          */
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file * filp = list_entry(p, struct file, f_list);
+                struct file * filp = list_entry(p, struct file, f_u.fu_list);
                 struct dentry * dentry = filp->f_dentry;
                 struct inode * inode;
                 struct file_operations *fops;
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index effa6c0c467a..e6a818a93f3d 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -156,10 +156,13 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
 
         WARN_ON(de && de->deleted);
 
+        if (de != NULL && !try_module_get(de->owner))
+                goto out_mod;
+
         inode = iget(sb, ino);
         if (!inode)
-                goto out_fail;
-        
+                goto out_ino;
+
         PROC_I(inode)->pde = de;
         if (de) {
                 if (de->mode) {
@@ -171,20 +174,20 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
                         inode->i_size = de->size;
                 if (de->nlink)
                         inode->i_nlink = de->nlink;
-                if (!try_module_get(de->owner))
-                        goto out_fail;
                 if (de->proc_iops)
                         inode->i_op = de->proc_iops;
                 if (de->proc_fops)
                         inode->i_fop = de->proc_fops;
         }
 
-out:
         return inode;
 
-out_fail:
+out_ino:
+        if (de != NULL)
+                module_put(de->owner);
+out_mod:
         de_put(de);
-        goto out;
+        return NULL;
 }                       
 
 int proc_fill_super(struct super_block *s, void *data, int silent)
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index a3453555a94e..5b6b0b6038a7 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -629,12 +629,4 @@ void __init proc_misc_init(void)
         if (entry)
                 entry->proc_fops = &proc_sysrq_trigger_operations;
 #endif
-#ifdef CONFIG_PPC32
-        {
-                extern struct file_operations ppc_htab_operations;
-                entry = create_proc_entry("ppc_htab", S_IRUGO|S_IWUSR, NULL);
-                if (entry)
-                        entry->proc_fops = &ppc_htab_operations;
-        }
-#endif
 }
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 44b02fc02ebe..42afb5bef111 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1024,12 +1024,8 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                                 strcpy(REISERFS_SB(s)->s_qf_names[qtype], arg);
                                 *mount_options |= 1 << REISERFS_QUOTA;
                         } else {
-                                if (REISERFS_SB(s)->s_qf_names[qtype]) {
-                                        kfree(REISERFS_SB(s)->
-                                              s_qf_names[qtype]);
-                                        REISERFS_SB(s)->s_qf_names[qtype] =
-                                            NULL;
-                                }
+                                kfree(REISERFS_SB(s)->s_qf_names[qtype]);
+                                REISERFS_SB(s)->s_qf_names[qtype] = NULL;
                         }
                 }
                 if (c == 'f') {
@@ -1158,11 +1154,10 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         if (!reiserfs_parse_options
             (s, arg, &mount_options, &blocks, NULL, &commit_max_age)) {
 #ifdef CONFIG_QUOTA
-                for (i = 0; i < MAXQUOTAS; i++)
-                        if (REISERFS_SB(s)->s_qf_names[i]) {
-                                kfree(REISERFS_SB(s)->s_qf_names[i]);
-                                REISERFS_SB(s)->s_qf_names[i] = NULL;
-                        }
+                for (i = 0; i < MAXQUOTAS; i++) {
+                        kfree(REISERFS_SB(s)->s_qf_names[i]);
+                        REISERFS_SB(s)->s_qf_names[i] = NULL;
+                }
 #endif
                 return -EINVAL;
         }
@@ -1940,13 +1935,11 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
                 brelse(SB_BUFFER_WITH_SB(s));
 #ifdef CONFIG_QUOTA
         for (j = 0; j < MAXQUOTAS; j++) {
-                if (sbi->s_qf_names[j])
-                        kfree(sbi->s_qf_names[j]);
+                kfree(sbi->s_qf_names[j]);
+                sbi->s_qf_names[j] = NULL;
         }
 #endif
-        if (sbi != NULL) {
-                kfree(sbi);
-        }
+        kfree(sbi);
 
         s->s_fs_info = NULL;
         return errval;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 6703efa3c430..a47ac9aac8b2 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -296,8 +296,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
                 }
         }
 
-        if (value)
-                kfree(value);
+        kfree(value);
 
         if (!error) {
                 /* Release the old one */
diff --git a/fs/super.c b/fs/super.c
index 6e57ee252e14..f60155ec7780 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -513,7 +513,7 @@ static void mark_files_ro(struct super_block *sb)
         struct file *f;
 
         file_list_lock();
-        list_for_each_entry(f, &sb->s_files, f_list) {
+        list_for_each_entry(f, &sb->s_files, f_u.fu_list) {
                 if (S_ISREG(f->f_dentry->d_inode->i_mode) && file_count(f))
                         f->f_mode &= ~FMODE_WRITE;
         }
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index 1c6f6b57ef1c..ef46939c0c1a 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -621,8 +621,7 @@ static int vfat_build_slots(struct inode *dir, const unsigned char *name,
         }
 
         /* build the entry of long file name */
-        for (cksum = i = 0; i < 11; i++)
-                cksum = (((cksum&1)<<7)|((cksum&0xfe)>>1)) + msdos_name[i];
+        cksum = fat_checksum(msdos_name);
 
         *nr_slots = usize / 13;
         for (ps = slots, i = *nr_slots; i > 0; i--, ps++) {
@@ -888,10 +887,10 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
 {
         struct buffer_head *dotdot_bh;
         struct msdos_dir_entry *dotdot_de;
-        loff_t dotdot_i_pos;
         struct inode *old_inode, *new_inode;
         struct fat_slot_info old_sinfo, sinfo;
         struct timespec ts;
+        loff_t dotdot_i_pos, new_i_pos;
         int err, is_dir, update_dotdot, corrupt = 0;
 
         old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
@@ -914,31 +913,24 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
 
         ts = CURRENT_TIME_SEC;
         if (new_inode) {
-                err = vfat_find(new_dir, &new_dentry->d_name, &sinfo);
-                if (err)
-                        goto out;
-                if (MSDOS_I(new_inode)->i_pos != sinfo.i_pos) {
-                        /* WTF??? Cry and fail. */
-                        printk(KERN_WARNING "vfat_rename: fs corrupted\n");
-                        goto out;
-                }
-
                 if (is_dir) {
                         err = fat_dir_empty(new_inode);
                         if (err)
                                 goto out;
                 }
+                new_i_pos = MSDOS_I(new_inode)->i_pos;
                 fat_detach(new_inode);
         } else {
                 err = vfat_add_entry(new_dir, &new_dentry->d_name, is_dir, 0,
                                      &ts, &sinfo);
                 if (err)
                         goto out;
+                new_i_pos = sinfo.i_pos;
         }
         new_dir->i_version++;
 
         fat_detach(old_inode);
-        fat_attach(old_inode, sinfo.i_pos);
+        fat_attach(old_inode, new_i_pos);
         if (IS_DIRSYNC(new_dir)) {
                 err = fat_sync_inode(old_inode);
                 if (err)
@@ -1002,7 +994,7 @@ error_inode:
         fat_detach(old_inode);
         fat_attach(old_inode, old_sinfo.i_pos);
         if (new_inode) {
-                fat_attach(new_inode, sinfo.i_pos);
+                fat_attach(new_inode, new_i_pos);
                 if (corrupt)
                         corrupt |= fat_sync_inode(new_inode);
         } else {
diff --git a/fs/xattr.c b/fs/xattr.c
index 3f9c64bea151..f6e00c0e114f 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -143,7 +143,7 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size)
         if (size) {
                 if (size > XATTR_SIZE_MAX)
                         size = XATTR_SIZE_MAX;
-                kvalue = kmalloc(size, GFP_KERNEL);
+                kvalue = kzalloc(size, GFP_KERNEL);
                 if (!kvalue)
                         return -ENOMEM;
         }
@@ -154,11 +154,15 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size)
         error = -EOPNOTSUPP;
         if (d->d_inode->i_op && d->d_inode->i_op->getxattr)
                 error = d->d_inode->i_op->getxattr(d, kname, kvalue, size);
-        else if (!strncmp(kname, XATTR_SECURITY_PREFIX,
-                          sizeof XATTR_SECURITY_PREFIX - 1)) {
+
+        if (!strncmp(kname, XATTR_SECURITY_PREFIX,
+                     sizeof XATTR_SECURITY_PREFIX - 1)) {
                 const char *suffix = kname + sizeof XATTR_SECURITY_PREFIX - 1;
-                error = security_inode_getsecurity(d->d_inode, suffix, kvalue,
-                                                   size);
+                int rv = security_inode_getsecurity(d->d_inode, suffix, kvalue,
+                                                    size, error);
+                /* Security module active: overwrite error value */
+                if (rv != -EOPNOTSUPP)
+                        error = rv;
         }
         if (error > 0) {
                 if (size && copy_to_user(value, kvalue, error))
diff --git a/include/asm-alpha/semaphore.h b/include/asm-alpha/semaphore.h
index eb2cbd97d404..1a6295f2c2d4 100644
--- a/include/asm-alpha/semaphore.h
+++ b/include/asm-alpha/semaphore.h
@@ -26,9 +26,6 @@ struct semaphore {
         .wait   = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait),   \
 }
 
-#define __MUTEX_INITIALIZER(name)                       \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count)         \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-arm/arch-ixp2000/ixdp2x01.h b/include/asm-arm/arch-ixp2000/ixdp2x01.h
index b768009c3a51..c6d51426e98f 100644
--- a/include/asm-arm/arch-ixp2000/ixdp2x01.h
+++ b/include/asm-arm/arch-ixp2000/ixdp2x01.h
@@ -22,7 +22,7 @@
 #define IXDP2X01_CPLD_REGION_SIZE       0x00100000
 
 #define IXDP2X01_CPLD_VIRT_REG(reg) (volatile unsigned long*)(IXDP2X01_VIRT_CPLD_BASE | reg)
-#define IXDP2X01_CPLD_PHYS_REG(reg) (volatile u32*)(IXDP2X01_PHYS_CPLD_BASE | reg)
+#define IXDP2X01_CPLD_PHYS_REG(reg) (IXDP2X01_PHYS_CPLD_BASE | reg)
 
 #define IXDP2X01_UART1_VIRT_BASE        IXDP2X01_CPLD_VIRT_REG(0x40)
 #define IXDP2X01_UART1_PHYS_BASE        IXDP2X01_CPLD_PHYS_REG(0x40)
diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h
index e350dcb544e8..80d05ecad2f0 100644
--- a/include/asm-arm/arch-ixp4xx/io.h
+++ b/include/asm-arm/arch-ixp4xx/io.h
@@ -113,7 +113,7 @@ __ixp4xx_writeb(u8 value, u32 addr)
 }
 
 static inline void
-__ixp4xx_writesb(u32 bus_addr, u8 *vaddr, int count)
+__ixp4xx_writesb(u32 bus_addr, const u8 *vaddr, int count)
 {
         while (count--)
                 writeb(*vaddr++, bus_addr);
@@ -136,7 +136,7 @@ __ixp4xx_writew(u16 value, u32 addr)
 }
 
 static inline void
-__ixp4xx_writesw(u32 bus_addr, u16 *vaddr, int count)
+__ixp4xx_writesw(u32 bus_addr, const u16 *vaddr, int count)
 {
         while (count--)
                 writew(*vaddr++, bus_addr);
@@ -154,7 +154,7 @@ __ixp4xx_writel(u32 value, u32 addr)
 }
 
 static inline void
-__ixp4xx_writesl(u32 bus_addr, u32 *vaddr, int count)
+__ixp4xx_writesl(u32 bus_addr, const u32 *vaddr, int count)
 {
         while (count--)
                 writel(*vaddr++, bus_addr);
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 366bafbdfbb1..5a0d19b466b0 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -397,9 +397,6 @@ static inline pte_t *pmd_page_kernel(pmd_t pmd)
 #define pgd_clear(pgdp)         do { } while (0)
 #define set_pgd(pgd,pgdp)       do { } while (0)
 
-#define page_pte_prot(page,prot)        mk_pte(page, prot)
-#define page_pte(page)          mk_pte(page, __pgprot(0))
-
 /* to find an entry in a page-table-directory */
 #define pgd_index(addr)         ((addr) >> PGDIR_SHIFT)
 
diff --git a/include/asm-arm/semaphore.h b/include/asm-arm/semaphore.h
index 60f33e6eb800..71ca7d412687 100644
--- a/include/asm-arm/semaphore.h
+++ b/include/asm-arm/semaphore.h
@@ -24,8 +24,6 @@ struct semaphore {
         .wait   = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait),   \
 }
 
-#define __MUTEX_INITIALIZER(name) __SEMAPHORE_INIT(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INIT(name,count)
 
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index c49df635a80f..d626e70faded 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -544,7 +544,6 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
 asmlinkage int sys_fork(struct pt_regs *regs);
 asmlinkage int sys_vfork(struct pt_regs *regs);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-arm26/pgtable.h b/include/asm-arm26/pgtable.h
index f602cf572411..a590250277f8 100644
--- a/include/asm-arm26/pgtable.h
+++ b/include/asm-arm26/pgtable.h
@@ -98,8 +98,6 @@ extern struct page *empty_zero_page;
 #define pfn_pte(pfn,prot)       (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 #define pages_to_mb(x)          ((x) >> (20 - PAGE_SHIFT))
 #define mk_pte(page,prot)       pfn_pte(page_to_pfn(page),prot)
-#define page_pte_prot(page,prot)        mk_pte(page, prot)
-#define page_pte(page)          mk_pte(page, __pgprot(0))
 
 /*
  * Terminology: PGD = Page Directory, PMD = Page Middle Directory,
diff --git a/include/asm-arm26/semaphore.h b/include/asm-arm26/semaphore.h
index c1b6a1edad92..ccf15e704109 100644
--- a/include/asm-arm26/semaphore.h
+++ b/include/asm-arm26/semaphore.h
@@ -25,9 +25,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait),   \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INIT(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INIT(name,count)
 
diff --git a/include/asm-arm26/unistd.h b/include/asm-arm26/unistd.h
index dfa0b0c30aa3..be4c2fb9c049 100644
--- a/include/asm-arm26/unistd.h
+++ b/include/asm-arm26/unistd.h
@@ -480,7 +480,6 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
 asmlinkage int sys_fork(struct pt_regs *regs);
 asmlinkage int sys_vfork(struct pt_regs *regs);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-cris/semaphore.h b/include/asm-cris/semaphore.h
index 8ed7636ab311..39faf69bcf76 100644
--- a/include/asm-cris/semaphore.h
+++ b/include/asm-cris/semaphore.h
@@ -33,9 +33,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index 28232ad2ff34..156a34bfc583 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -367,7 +367,6 @@ asmlinkage int sys_fork(long r10, long r11, long r12, long r13,
 asmlinkage int sys_vfork(long r10, long r11, long r12, long r13,
                         long mof, long srp, struct pt_regs *regs);
 asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h
index 473fb4bb6329..b247e99dff49 100644
--- a/include/asm-frv/pgtable.h
+++ b/include/asm-frv/pgtable.h
@@ -436,8 +436,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
         return pte;
 }
 
-#define page_pte(page)  page_pte_prot((page), __pgprot(0))
-
 /* to find an entry in a page-table-directory. */
 #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
 #define pgd_index_k(addr) pgd_index(addr)
diff --git a/include/asm-frv/semaphore.h b/include/asm-frv/semaphore.h
index 393545630806..b18396288df1 100644
--- a/include/asm-frv/semaphore.h
+++ b/include/asm-frv/semaphore.h
@@ -47,9 +47,6 @@ struct semaphore {
 #define __SEMAPHORE_INITIALIZER(name,count) \
 { count, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) __SEM_DEBUG_INIT(name) }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-h8300/semaphore.h b/include/asm-h8300/semaphore.h
index fe6ef3774297..81bae2a99192 100644
--- a/include/asm-h8300/semaphore.h
+++ b/include/asm-h8300/semaphore.h
@@ -35,9 +35,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-h8300/unistd.h b/include/asm-h8300/unistd.h
index 56a6401886fa..56a4a5686c88 100644
--- a/include/asm-h8300/unistd.h
+++ b/include/asm-h8300/unistd.h
@@ -528,7 +528,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 asmlinkage int sys_execve(char *name, char **argv, char **envp,
                         int dummy, ...);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h
index 8c454aa58ac6..a515e2aed829 100644
--- a/include/asm-i386/apic.h
+++ b/include/asm-i386/apic.h
@@ -118,7 +118,8 @@ extern void release_lapic_nmi(void);
 extern void disable_timer_nmi_watchdog(void);
 extern void enable_timer_nmi_watchdog(void);
 extern void nmi_watchdog_tick (struct pt_regs * regs);
-extern int APIC_init_uniprocessor (void);
+extern int APIC_init(void);
+extern void APIC_late_time_init(void);
 extern void disable_APIC_timer(void);
 extern void enable_APIC_timer(void);
 
diff --git a/include/asm-i386/desc.h b/include/asm-i386/desc.h
index 6df1a53c190e..29b851a18c6e 100644
--- a/include/asm-i386/desc.h
+++ b/include/asm-i386/desc.h
@@ -17,6 +17,8 @@
 extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
 DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
 
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu))
+
 DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
 
 struct Xgt_desc_struct {
@@ -60,7 +62,7 @@ __asm__ __volatile__ ("movw %w3,0(%2)\n\t" \
 
 static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, void *addr)
 {
-        _set_tssldt_desc(&per_cpu(cpu_gdt_table, cpu)[entry], (int)addr,
+        _set_tssldt_desc(&get_cpu_gdt_table(cpu)[entry], (int)addr,
                 offsetof(struct tss_struct, __cacheline_filler) - 1, 0x89);
 }
 
@@ -68,7 +70,7 @@ static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, void *ad
 
 static inline void set_ldt_desc(unsigned int cpu, void *addr, unsigned int size)
 {
-        _set_tssldt_desc(&per_cpu(cpu_gdt_table, cpu)[GDT_ENTRY_LDT], (int)addr, ((size << 3)-1), 0x82);
+        _set_tssldt_desc(&get_cpu_gdt_table(cpu)[GDT_ENTRY_LDT], (int)addr, ((size << 3)-1), 0x82);
 }
 
 #define LDT_entry_a(info) \
@@ -109,7 +111,7 @@ static inline void write_ldt_entry(void *ldt, int entry, __u32 entry_a, __u32 en
 
 static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
 {
-#define C(i) per_cpu(cpu_gdt_table, cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]
+#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]
         C(0); C(1); C(2);
 #undef C
 }
diff --git a/include/asm-i386/hw_irq.h b/include/asm-i386/hw_irq.h
index 622815bf3243..9139b89497a1 100644
--- a/include/asm-i386/hw_irq.h
+++ b/include/asm-i386/hw_irq.h
@@ -55,6 +55,7 @@ void init_8259A(int aeoi);
 void FASTCALL(send_IPI_self(int vector));
 void init_VISWS_APIC_irqs(void);
 void setup_IO_APIC(void);
+void IO_APIC_late_time_init(void);
 void disable_IO_APIC(void);
 void print_IO_APIC(void);
 int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
diff --git a/include/asm-i386/mach-default/smpboot_hooks.h b/include/asm-i386/mach-default/smpboot_hooks.h
index 7f45f6311059..d7c70c144f9f 100644
--- a/include/asm-i386/mach-default/smpboot_hooks.h
+++ b/include/asm-i386/mach-default/smpboot_hooks.h
@@ -1,11 +1,6 @@
 /* two abstractions specific to kernel/smpboot.c, mainly to cater to visws
  * which needs to alter them. */
 
-static inline void smpboot_clear_io_apic_irqs(void)
-{
-        io_apic_irqs = 0;
-}
-
 static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
 {
         CMOS_WRITE(0xa, 0xf);
@@ -32,13 +27,3 @@ static inline void smpboot_restore_warm_reset_vector(void)
 
         *((volatile long *) phys_to_virt(0x467)) = 0;
 }
-
-static inline void smpboot_setup_io_apic(void)
-{
-        /*
-         * Here we can be sure that there is an IO-APIC in the system. Let's
-         * go and set it up:
-         */
-        if (!skip_ioapic_setup && nr_ioapics)
-                setup_IO_APIC();
-}
diff --git a/include/asm-i386/mach-es7000/mach_mpparse.h b/include/asm-i386/mach-es7000/mach_mpparse.h
index 28a84f6185a7..4a0637a3e208 100644
--- a/include/asm-i386/mach-es7000/mach_mpparse.h
+++ b/include/asm-i386/mach-es7000/mach_mpparse.h
@@ -16,7 +16,7 @@ static inline void mpc_oem_pci_bus(struct mpc_config_bus *m,
 
 extern int parse_unisys_oem (char *oemptr);
 extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
-extern void setup_unisys();
+extern void setup_unisys(void);
 
 static inline int mps_oem_check(struct mp_config_table *mpc, char *oem,
                 char *productid)
diff --git a/include/asm-i386/mach-visws/smpboot_hooks.h b/include/asm-i386/mach-visws/smpboot_hooks.h
index d926471fa359..14d8e0375f7a 100644
--- a/include/asm-i386/mach-visws/smpboot_hooks.h
+++ b/include/asm-i386/mach-visws/smpboot_hooks.h
@@ -11,14 +11,7 @@ static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
 
 /* for visws do nothing for any of these */
 
-static inline void smpboot_clear_io_apic_irqs(void)
-{
-}
-
 static inline void smpboot_restore_warm_reset_vector(void)
 {
 }
 
-static inline void smpboot_setup_io_apic(void)
-{
-}
diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h
index fa07bd6c7529..74ef721b534d 100644
--- a/include/asm-i386/pgtable-2level.h
+++ b/include/asm-i386/pgtable-2level.h
@@ -26,11 +26,6 @@
 #define pfn_pte(pfn, prot)      __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 #define pfn_pmd(pfn, prot)      __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 
-#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
-
-#define pmd_page_kernel(pmd) \
-((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
-
 /*
  * All present user pages are user-executable:
  */
diff --git a/include/asm-i386/pgtable-3level.h b/include/asm-i386/pgtable-3level.h
index 2e3f4a344a2d..f1a8b454920a 100644
--- a/include/asm-i386/pgtable-3level.h
+++ b/include/asm-i386/pgtable-3level.h
@@ -74,11 +74,6 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
  */
 static inline void pud_clear (pud_t * pud) { }
 
-#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
-
-#define pmd_page_kernel(pmd) \
-((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
-
 #define pud_page(pud) \
 ((struct page *) __va(pud_val(pud) & PAGE_MASK))
 
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index 0e3ec809352d..03f3c8ac6383 100644
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -323,8 +323,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
         return pte;
 }
 
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
-
 #define pmd_large(pmd) \
 ((pmd_val(pmd) & (_PAGE_PSE|_PAGE_PRESENT)) == (_PAGE_PSE|_PAGE_PRESENT))
 
@@ -369,6 +367,11 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 #define pte_offset_kernel(dir, address) \
         ((pte_t *) pmd_page_kernel(*(dir)) +  pte_index(address))
 
+#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
+
+#define pmd_page_kernel(pmd) \
+                ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
+
 /*
  * Helper function that returns the kernel pagetable entry controlling
  * the virtual address 'address'. NULL means no pagetable entry present.
diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h
index ea563da63e24..6a42b2142fd6 100644
--- a/include/asm-i386/semaphore.h
+++ b/include/asm-i386/semaphore.h
@@ -55,9 +55,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index acd5c26b69ba..97d52ac49e46 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -167,6 +167,8 @@ struct __xchg_dummy { unsigned long a[100]; };
 #define __xg(x) ((struct __xchg_dummy *)(x))
 
 
+#ifdef CONFIG_X86_CMPXCHG64
+
 /*
  * The semantics of XCHGCMP8B are a bit strange, this is why
  * there is a loop and the loading of %%eax and %%edx has to
@@ -221,6 +223,8 @@ static inline void __set_64bit_var (unsigned long long *ptr,
  __set_64bit(ptr, (unsigned int)(value), (unsigned int)((value)>>32ULL) ) : \
  __set_64bit(ptr, ll_low(value), ll_high(value)) )
 
+#endif
+
 /*
  * Note: no "lock" prefix even on SMP: xchg always implies lock anyway
  * Note 2: xchg has side effect, so that attribute volatile is necessary,
@@ -259,7 +263,6 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 
 #ifdef CONFIG_X86_CMPXCHG
 #define __HAVE_ARCH_CMPXCHG 1
-#endif
 
 static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
                                       unsigned long new, int size)
@@ -275,13 +278,13 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
         case 2:
                 __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
                                      : "=a"(prev)
-                                     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
                                      : "memory");
                 return prev;
         case 4:
                 __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
                                      : "=a"(prev)
-                                     : "q"(new), "m"(*__xg(ptr)), "0"(old)
+                                     : "r"(new), "m"(*__xg(ptr)), "0"(old)
                                      : "memory");
                 return prev;
         }
@@ -291,6 +294,30 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 #define cmpxchg(ptr,o,n)\
         ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
                                         (unsigned long)(n),sizeof(*(ptr))))
+
+#endif
+
+#ifdef CONFIG_X86_CMPXCHG64
+
+static inline unsigned long long __cmpxchg64(volatile void *ptr, unsigned long long old,
+                                      unsigned long long new)
+{
+        unsigned long long prev;
+        __asm__ __volatile__(LOCK_PREFIX "cmpxchg8b %3"
+                             : "=A"(prev)
+                             : "b"((unsigned long)new),
+                               "c"((unsigned long)(new >> 32)),
+                               "m"(*__xg(ptr)),
+                               "0"(old)
+                             : "memory");
+        return prev;
+}
+
+#define cmpxchg64(ptr,o,n)\
+        ((__typeof__(*(ptr)))__cmpxchg64((ptr),(unsigned long long)(o),\
+                                        (unsigned long long)(n)))
+
+#endif
     
 #ifdef __KERNEL__
 struct alt_instr { 
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index fbaf90a3968c..0f92e78dfea1 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -448,7 +448,6 @@ asmlinkage int sys_clone(struct pt_regs regs);
 asmlinkage int sys_fork(struct pt_regs regs);
 asmlinkage int sys_vfork(struct pt_regs regs);
 asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 asmlinkage long sys_iopl(unsigned long unused);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 3339c7b55a6f..21e32a06bc82 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -236,9 +236,6 @@ ia64_phys_addr_valid (unsigned long addr)
 #define pte_modify(_pte, newprot) \
         (__pte((pte_val(_pte) & ~_PAGE_CHG_MASK) | (pgprot_val(newprot) & _PAGE_CHG_MASK)))
 
-#define page_pte_prot(page,prot)        mk_pte(page, prot)
-#define page_pte(page)                  page_pte_prot(page, __pgprot(0))
-
 #define pte_none(pte)                   (!pte_val(pte))
 #define pte_present(pte)                (pte_val(pte) & (_PAGE_P | _PAGE_PROTNONE))
 #define pte_clear(mm,addr,pte)          (pte_val(*(pte)) = 0UL)
diff --git a/include/asm-ia64/semaphore.h b/include/asm-ia64/semaphore.h
index 3a2f0f3f78f3..bb8906285fab 100644
--- a/include/asm-ia64/semaphore.h
+++ b/include/asm-ia64/semaphore.h
@@ -24,8 +24,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name)       __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count)                                 \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name, count)
 
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index 3a0c69524656..6d96a67439be 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -383,8 +383,6 @@ struct sigaction;
 long sys_execve(char __user *filename, char __user * __user *argv,
                            char __user * __user *envp, struct pt_regs *regs);
 asmlinkage long sys_pipe(void);
-asmlinkage long sys_ptrace(long request, pid_t pid,
-                           unsigned long addr, unsigned long data);
 asmlinkage long sys_rt_sigaction(int sig,
                                  const struct sigaction __user *act,
                                  struct sigaction __user *oact,
diff --git a/include/asm-m32r/pgtable.h b/include/asm-m32r/pgtable.h
index 388e5ee9fa27..1cd5fd4a5b2c 100644
--- a/include/asm-m32r/pgtable.h
+++ b/include/asm-m32r/pgtable.h
@@ -324,8 +324,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
         return pte;
 }
 
-#define page_pte(page)  page_pte_prot(page, __pgprot(0))
-
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
diff --git a/include/asm-m32r/semaphore.h b/include/asm-m32r/semaphore.h
index 53e3c60f21ec..bf447c52a0a1 100644
--- a/include/asm-m32r/semaphore.h
+++ b/include/asm-m32r/semaphore.h
@@ -32,9 +32,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-m32r/thread_info.h b/include/asm-m32r/thread_info.h
index 7a6be7727a92..0f589363f619 100644
--- a/include/asm-m32r/thread_info.h
+++ b/include/asm-m32r/thread_info.h
@@ -95,7 +95,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 /* thread information allocation */
-#if CONFIG_DEBUG_STACK_USAGE
+#ifdef CONFIG_DEBUG_STACK_USAGE
 #define alloc_thread_info(tsk)                                  \
         ({                                                      \
                 struct thread_info *ret;                        \
diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h
index 8552d8f45ab1..ac399e1f7bc0 100644
--- a/include/asm-m32r/unistd.h
+++ b/include/asm-m32r/unistd.h
@@ -452,7 +452,6 @@ asmlinkage int sys_clone(struct pt_regs regs);
 asmlinkage int sys_fork(struct pt_regs regs);
 asmlinkage int sys_vfork(struct pt_regs regs);
 asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                  const struct sigaction __user *act,
diff --git a/include/asm-m68k/semaphore.h b/include/asm-m68k/semaphore.h
index ab94cf3ed447..fd4c7cc3d3be 100644
--- a/include/asm-m68k/semaphore.h
+++ b/include/asm-m68k/semaphore.h
@@ -36,9 +36,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-m68k/sun3xflop.h b/include/asm-m68k/sun3xflop.h
index 1ed3b787ee05..fda1eccf10aa 100644
--- a/include/asm-m68k/sun3xflop.h
+++ b/include/asm-m68k/sun3xflop.h
@@ -27,10 +27,8 @@
 
 /* We don't need no stinkin' I/O port allocation crap. */
 #undef release_region
-#undef check_region
 #undef request_region
 #define release_region(X, Y)    do { } while(0)
-#define check_region(X, Y)      (0)
 #define request_region(X, Y, Z) (1)
 
 struct sun3xflop_private {
diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h
index cbabde4f8a45..c2554bcd1747 100644
--- a/include/asm-m68k/unistd.h
+++ b/include/asm-m68k/unistd.h
@@ -444,7 +444,6 @@ asmlinkage long sys_mmap2(
                         unsigned long fd, unsigned long pgoff);
 asmlinkage int sys_execve(char *name, char **argv, char **envp);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct pt_regs;
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
diff --git a/include/asm-m68knommu/ide.h b/include/asm-m68knommu/ide.h
index b1cbf8bb9232..836f0721ecf9 100644
--- a/include/asm-m68knommu/ide.h
+++ b/include/asm-m68knommu/ide.h
@@ -163,13 +163,6 @@ ide_free_irq(unsigned int irq, void *dev_id)
 }
 
 
-static IDE_INLINE int
-ide_check_region(ide_ioreg_t from, unsigned int extent)
-{
-        return 0;
-}
-
-
 static IDE_INLINE void
 ide_request_region(ide_ioreg_t from, unsigned int extent, const char *name)
 {
diff --git a/include/asm-m68knommu/semaphore.h b/include/asm-m68knommu/semaphore.h
index febe85add509..17aee15906a6 100644
--- a/include/asm-m68knommu/semaphore.h
+++ b/include/asm-m68knommu/semaphore.h
@@ -35,9 +35,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h
index 84b6fa14459f..5373988a7e51 100644
--- a/include/asm-m68knommu/unistd.h
+++ b/include/asm-m68knommu/unistd.h
@@ -504,7 +504,6 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
                         unsigned long fd, unsigned long pgoff);
 asmlinkage int sys_execve(char *name, char **argv, char **envp);
 asmlinkage int sys_pipe(unsigned long *fildes);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct pt_regs;
 int sys_request_irq(unsigned int,
                         irqreturn_t (*)(int, void *, struct pt_regs *),
diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h
index 3e0a522c0f0e..82166b254b27 100644
--- a/include/asm-mips/pgtable-64.h
+++ b/include/asm-mips/pgtable-64.h
@@ -169,7 +169,6 @@ static inline void pud_clear(pud_t *pudp)
 #define __pgd_offset(address)   pgd_index(address)
 #define __pud_offset(address)   (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
 #define __pmd_offset(address)   pmd_index(address)
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
 
 /* to find an entry in a kernel page-table-directory */
 #define pgd_offset_k(address) pgd_offset(&init_mm, 0)
diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index 1e8ae2723be4..34facd996503 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -75,7 +75,6 @@ extern void paging_init(void);
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
  */
-#define page_pte(page)          page_pte_prot(page, __pgprot(0))
 #define pmd_phys(pmd)           (pmd_val(pmd) - PAGE_OFFSET)
 #define pmd_page(pmd)           (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
 #define pmd_page_kernel(pmd)    pmd_val(pmd)
diff --git a/include/asm-mips/semaphore.h b/include/asm-mips/semaphore.h
index c2c97dec661b..3d6aa7c7ea81 100644
--- a/include/asm-mips/semaphore.h
+++ b/include/asm-mips/semaphore.h
@@ -45,9 +45,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name, 1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name, count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h
index c9eaf4c104de..89ea8b60e945 100644
--- a/include/asm-mips/unistd.h
+++ b/include/asm-mips/unistd.h
@@ -1177,7 +1177,6 @@ asmlinkage long sys_mmap2(
                         unsigned long fd, unsigned long pgoff);
 asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs);
 asmlinkage int sys_pipe(nabi_no_regargs struct pt_regs regs);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-parisc/ide.h b/include/asm-parisc/ide.h
index 3243cf2cd227..b27bf7aeb256 100644
--- a/include/asm-parisc/ide.h
+++ b/include/asm-parisc/ide.h
@@ -22,7 +22,6 @@
 
 #define ide_request_irq(irq,hand,flg,dev,id)    request_irq((irq),(hand),(flg),(dev),(id))
 #define ide_free_irq(irq,dev_id)                free_irq((irq), (dev_id))
-#define ide_check_region(from,extent)           check_region((from), (extent))
 #define ide_request_region(from,extent,name)    request_region((from), (extent), (name))
 #define ide_release_region(from,extent)         release_region((from), (extent))
 /* Generic I/O and MEMIO string operations.  */
diff --git a/include/asm-parisc/semaphore.h b/include/asm-parisc/semaphore.h
index f78bb2e34538..c9ee41cd0707 100644
--- a/include/asm-parisc/semaphore.h
+++ b/include/asm-parisc/semaphore.h
@@ -49,9 +49,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index e7a620c5c5e6..80b7b98c70a1 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -1011,7 +1011,6 @@ int sys_clone(unsigned long clone_flags, unsigned long usp,
                 struct pt_regs *regs);
 int sys_vfork(struct pt_regs *regs);
 int sys_pipe(int *fildes);
-long sys_ptrace(long request, pid_t pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-ppc64/a.out.h b/include/asm-powerpc/a.out.h
index 3871e252a6f1..c7393a977364 100644
--- a/include/asm-ppc64/a.out.h
+++ b/include/asm-powerpc/a.out.h
@@ -1,14 +1,5 @@
-#ifndef __PPC64_A_OUT_H__
-#define __PPC64_A_OUT_H__
-
-/*
- * c 2001 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
+#ifndef _ASM_POWERPC_A_OUT_H
+#define _ASM_POWERPC_A_OUT_H
 
 struct exec
 {
@@ -27,6 +18,7 @@ struct exec
 #define N_SYMSIZE(a)    ((a).a_syms)
 
 #ifdef __KERNEL__
+#ifdef __powerpc64__
 
 #define STACK_TOP_USER64 TASK_SIZE_USER64
 #define STACK_TOP_USER32 TASK_SIZE_USER32
@@ -34,6 +26,11 @@ struct exec
 #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
                    STACK_TOP_USER32 : STACK_TOP_USER64)
 
+#else /* __powerpc64__ */
+
+#define STACK_TOP TASK_SIZE
+
+#endif /* __powerpc64__ */
 #endif /* __KERNEL__ */
 
-#endif /* __PPC64_A_OUT_H__ */
+#endif /* _ASM_POWERPC_A_OUT_H */
diff --git a/include/asm-ppc/atomic.h b/include/asm-powerpc/atomic.h
index eeafd505836e..ed4b345ed75d 100644
--- a/include/asm-ppc/atomic.h
+++ b/include/asm-powerpc/atomic.h
@@ -1,29 +1,20 @@
+#ifndef _ASM_POWERPC_ATOMIC_H_
+#define _ASM_POWERPC_ATOMIC_H_
+
 /*
  * PowerPC atomic operations
  */
 
-#ifndef _ASM_PPC_ATOMIC_H_
-#define _ASM_PPC_ATOMIC_H_
-
 typedef struct { volatile int counter; } atomic_t;
 
 #ifdef __KERNEL__
+#include <asm/synch.h>
 
-#define ATOMIC_INIT(i)  { (i) }
+#define ATOMIC_INIT(i)          { (i) }
 
 #define atomic_read(v)          ((v)->counter)
 #define atomic_set(v,i)         (((v)->counter) = (i))
 
-extern void atomic_clear_mask(unsigned long mask, unsigned long *addr);
-
-#ifdef CONFIG_SMP
-#define SMP_SYNC        "sync"
-#define SMP_ISYNC       "\n\tisync"
-#else
-#define SMP_SYNC        ""
-#define SMP_ISYNC
-#endif
-
 /* Erratum #77 on the 405 means we need a sync or dcbt before every stwcx.
  * The old ATOMIC_SYNC_FIX covered some but not all of this.
  */
@@ -53,12 +44,13 @@ static __inline__ int atomic_add_return(int a, atomic_t *v)
         int t;
 
         __asm__ __volatile__(
+        EIEIO_ON_SMP
 "1:     lwarx   %0,0,%2         # atomic_add_return\n\
         add     %0,%1,%0\n"
         PPC405_ERR77(0,%2)
 "       stwcx.  %0,0,%2 \n\
         bne-    1b"
-        SMP_ISYNC
+        ISYNC_ON_SMP
         : "=&r" (t)
         : "r" (a), "r" (&v->counter)
         : "cc", "memory");
@@ -88,12 +80,13 @@ static __inline__ int atomic_sub_return(int a, atomic_t *v)
         int t;
 
         __asm__ __volatile__(
+        EIEIO_ON_SMP
 "1:     lwarx   %0,0,%2         # atomic_sub_return\n\
         subf    %0,%1,%0\n"
         PPC405_ERR77(0,%2)
 "       stwcx.  %0,0,%2 \n\
         bne-    1b"
-        SMP_ISYNC
+        ISYNC_ON_SMP
         : "=&r" (t)
         : "r" (a), "r" (&v->counter)
         : "cc", "memory");
@@ -121,12 +114,13 @@ static __inline__ int atomic_inc_return(atomic_t *v)
         int t;
 
         __asm__ __volatile__(
+        EIEIO_ON_SMP
 "1:     lwarx   %0,0,%1         # atomic_inc_return\n\
         addic   %0,%0,1\n"
         PPC405_ERR77(0,%1)
 "       stwcx.  %0,0,%1 \n\
         bne-    1b"
-        SMP_ISYNC
+        ISYNC_ON_SMP
         : "=&r" (t)
         : "r" (&v->counter)
         : "cc", "memory");
@@ -164,12 +158,13 @@ static __inline__ int atomic_dec_return(atomic_t *v)
         int t;
 
         __asm__ __volatile__(
+        EIEIO_ON_SMP
 "1:     lwarx   %0,0,%1         # atomic_dec_return\n\
         addic   %0,%0,-1\n"
         PPC405_ERR77(0,%1)
 "       stwcx.  %0,0,%1\n\
         bne-    1b"
-        SMP_ISYNC
+        ISYNC_ON_SMP
         : "=&r" (t)
         : "r" (&v->counter)
         : "cc", "memory");
@@ -189,13 +184,14 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v)
         int t;
 
         __asm__ __volatile__(
+        EIEIO_ON_SMP
 "1:     lwarx   %0,0,%1         # atomic_dec_if_positive\n\
         addic.  %0,%0,-1\n\
         blt-    2f\n"
         PPC405_ERR77(0,%1)
 "       stwcx.  %0,0,%1\n\
         bne-    1b"
-        SMP_ISYNC
+        ISYNC_ON_SMP
         "\n\
 2:"     : "=&r" (t)
         : "r" (&v->counter)
@@ -204,11 +200,10 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v)
         return t;
 }
 
-#define __MB    __asm__ __volatile__ (SMP_SYNC : : : "memory")
-#define smp_mb__before_atomic_dec()     __MB
-#define smp_mb__after_atomic_dec()      __MB
-#define smp_mb__before_atomic_inc()     __MB
-#define smp_mb__after_atomic_inc()      __MB
+#define smp_mb__before_atomic_dec()     smp_mb()
+#define smp_mb__after_atomic_dec()      smp_mb()
+#define smp_mb__before_atomic_inc()     smp_mb()
+#define smp_mb__after_atomic_inc()      smp_mb()
 
 #endif /* __KERNEL__ */
-#endif /* _ASM_PPC_ATOMIC_H_ */
+#endif /* _ASM_POWERPC_ATOMIC_H_ */
diff --git a/include/asm-ppc64/auxvec.h b/include/asm-powerpc/auxvec.h
index ac6381a106e1..79d8c4732309 100644
--- a/include/asm-ppc64/auxvec.h
+++ b/include/asm-powerpc/auxvec.h
@@ -1,5 +1,5 @@
-#ifndef __PPC64_AUXVEC_H
-#define __PPC64_AUXVEC_H
+#ifndef _ASM_POWERPC_AUXVEC_H
+#define _ASM_POWERPC_AUXVEC_H
 
 /*
  * We need to put in some extra aux table entries to tell glibc what
@@ -14,6 +14,8 @@
 /* The vDSO location. We have to use the same value as x86 for glibc's
  * sake :-)
  */
+#ifdef __powerpc64__
 #define AT_SYSINFO_EHDR         33
+#endif
 
-#endif /* __PPC64_AUXVEC_H */
+#endif
diff --git a/include/asm-ppc/backlight.h b/include/asm-powerpc/backlight.h
index 3a1c3dede2a0..1ba1f27a0b63 100644
--- a/include/asm-ppc/backlight.h
+++ b/include/asm-powerpc/backlight.h
@@ -1,12 +1,13 @@
 /*
  * Routines for handling backlight control on PowerBooks
  *
- * For now, implementation resides in arch/ppc/kernel/pmac_support.c
+ * For now, implementation resides in
+ * arch/powerpc/platforms/powermac/pmac_support.c
  *
  */
+#ifndef __ASM_POWERPC_BACKLIGHT_H
+#define __ASM_POWERPC_BACKLIGHT_H
 #ifdef __KERNEL__
-#ifndef __ASM_PPC_BACKLIGHT_H
-#define __ASM_PPC_BACKLIGHT_H
 
 /* Abstract values */
 #define BACKLIGHT_OFF   0
@@ -26,5 +27,5 @@ extern int get_backlight_enable(void);
 extern int set_backlight_level(int level);
 extern int get_backlight_level(void);
 
-#endif
 #endif /* __KERNEL__ */
+#endif
diff --git a/include/asm-ppc64/bug.h b/include/asm-powerpc/bug.h
index 160178278861..e4d028e87020 100644
--- a/include/asm-ppc64/bug.h
+++ b/include/asm-powerpc/bug.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_BUG_H
-#define _PPC64_BUG_H
+#ifndef _ASM_POWERPC_BUG_H
+#define _ASM_POWERPC_BUG_H
 
 /*
  * Define an illegal instr to trap on the bug.
@@ -11,9 +11,21 @@
 
 #ifndef __ASSEMBLY__
 
+#ifdef __powerpc64__
+#define BUG_TABLE_ENTRY(label, line, file, func) \
+        ".llong " #label "\n .long " #line "\n .llong " #file ", " #func "\n"
+#define TRAP_OP(ra, rb) "1: tdnei " #ra ", " #rb "\n"
+#define DATA_TYPE long long
+#else 
+#define BUG_TABLE_ENTRY(label, line, file, func) \
+        ".long " #label ", " #line ", " #file ", " #func "\n"
+#define TRAP_OP(ra, rb) "1: twnei " #ra ", " #rb "\n"
+#define DATA_TYPE int
+#endif /* __powerpc64__ */
+
 struct bug_entry {
         unsigned long   bug_addr;
-        long            line;
+        int             line;
         const char      *file;
         const char      *function;
 };
@@ -32,28 +44,28 @@ struct bug_entry *find_bug(unsigned long bugaddr);
         __asm__ __volatile__(                                            \
                 "1:     twi 31,0,0\n"                                    \
                 ".section __bug_table,\"a\"\n\t"                         \
-                "       .llong 1b,%0,%1,%2\n"                            \
+                BUG_TABLE_ENTRY(1b,%0,%1,%2)                             \
                 ".previous"                                              \
                 : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
 } while (0)
 
 #define BUG_ON(x) do {                                          \
         __asm__ __volatile__(                                   \
-                "1:     tdnei %0,0\n"                           \
+                TRAP_OP(%0,0)                                   \
                 ".section __bug_table,\"a\"\n\t"                \
-                "       .llong 1b,%1,%2,%3\n"                   \
+                BUG_TABLE_ENTRY(1b,%1,%2,%3)                    \
                 ".previous"                                     \
-                : : "r" ((long long)(x)), "i" (__LINE__),       \
+                : : "r" ((DATA_TYPE)(x)), "i" (__LINE__),       \
                     "i" (__FILE__), "i" (__FUNCTION__));        \
 } while (0)
 
 #define WARN_ON(x) do {                                         \
         __asm__ __volatile__(                                   \
-                "1:     tdnei %0,0\n"                           \
+                TRAP_OP(%0,0)                                   \
                 ".section __bug_table,\"a\"\n\t"                \
-                "       .llong 1b,%1,%2,%3\n"                   \
+                BUG_TABLE_ENTRY(1b,%1,%2,%3)                    \
                 ".previous"                                     \
-                : : "r" ((long long)(x)),                       \
+                : : "r" ((DATA_TYPE)(x)),                       \
                     "i" (__LINE__ + BUG_WARNING_TRAP),          \
                     "i" (__FILE__), "i" (__FUNCTION__));        \
 } while (0)
@@ -61,9 +73,9 @@ struct bug_entry *find_bug(unsigned long bugaddr);
 #define HAVE_ARCH_BUG
 #define HAVE_ARCH_BUG_ON
 #define HAVE_ARCH_WARN_ON
-#endif
-#endif
+#endif /* CONFIG_BUG */
+#endif /* __ASSEMBLY __ */
 
 #include <asm-generic/bug.h>
 
-#endif
+#endif /* _ASM_POWERPC_BUG_H */
diff --git a/include/asm-ppc64/byteorder.h b/include/asm-powerpc/byteorder.h
index 8b57da62b674..b37752214a16 100644
--- a/include/asm-ppc64/byteorder.h
+++ b/include/asm-powerpc/byteorder.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_BYTEORDER_H
-#define _PPC64_BYTEORDER_H
+#ifndef _ASM_POWERPC_BYTEORDER_H
+#define _ASM_POWERPC_BYTEORDER_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -77,10 +77,13 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 value)
 
 #ifndef __STRICT_ANSI__
 #define __BYTEORDER_HAS_U64__
-#endif
+#ifndef __powerpc64__
+#define __SWAB_64_THRU_32__
+#endif /* __powerpc64__ */
+#endif /* __STRICT_ANSI__ */
 
 #endif /* __GNUC__ */
 
 #include <linux/byteorder/big_endian.h>
 
-#endif /* _PPC64_BYTEORDER_H */
+#endif /* _ASM_POWERPC_BYTEORDER_H */
diff --git a/include/asm-ppc64/checksum.h b/include/asm-powerpc/checksum.h
index d22d4469de43..d8354d8a49ce 100644
--- a/include/asm-ppc64/checksum.h
+++ b/include/asm-powerpc/checksum.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_CHECKSUM_H
-#define _PPC64_CHECKSUM_H
+#ifndef _ASM_POWERPC_CHECKSUM_H
+#define _ASM_POWERPC_CHECKSUM_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -41,8 +41,14 @@ extern unsigned int csum_partial(const unsigned char * buff, int len,
                                  unsigned int sum);
 
 /*
- * the same as csum_partial, but copies from src to dst while it
- * checksums
+ * Computes the checksum of a memory block at src, length len,
+ * and adds in "sum" (32-bit), while copying the block to dst.
+ * If an access exception occurs on src or dst, it stores -EFAULT
+ * to *src_err or *dst_err respectively (if that pointer is not
+ * NULL), and, for an error on src, zeroes the rest of dst.
+ *
+ * Like csum_partial, this must be called with even lengths,
+ * except for the last fragment.
  */
 extern unsigned int csum_partial_copy_generic(const char *src, char *dst,
                                               int len, unsigned int sum,
@@ -51,12 +57,18 @@ extern unsigned int csum_partial_copy_generic(const char *src, char *dst,
  * the same as csum_partial, but copies from src to dst while it
  * checksums.
  */
-
 unsigned int csum_partial_copy_nocheck(const char *src, 
                                        char *dst, 
                                        int len, 
                                        unsigned int sum);
 
+#define csum_partial_copy_from_user(src, dst, len, sum, errp)   \
+        csum_partial_copy_generic((src), (dst), (len), (sum), (errp), NULL)
+
+#define csum_partial_copy_nocheck(src, dst, len, sum)   \
+        csum_partial_copy_generic((src), (dst), (len), (sum), NULL, NULL)
+
+
 /*
  * turns a 32-bit partial checksum (e.g. from csum_partial) into a
  * 1's complement 16-bit checksum.
@@ -83,12 +95,7 @@ static inline unsigned short ip_compute_csum(unsigned char * buff, int len)
         return csum_fold(csum_partial(buff, len, 0));
 }
 
-#define csum_partial_copy_from_user(src, dst, len, sum, errp)   \
-        csum_partial_copy_generic((src), (dst), (len), (sum), (errp), NULL)
-
-#define csum_partial_copy_nocheck(src, dst, len, sum)   \
-        csum_partial_copy_generic((src), (dst), (len), (sum), NULL, NULL)
-
+#ifdef __powerpc64__
 static inline u32 csum_tcpudp_nofold(u32 saddr,
                                      u32 daddr,
                                      unsigned short len,
@@ -103,5 +110,23 @@ static inline u32 csum_tcpudp_nofold(u32 saddr,
         s += (s >> 32);
         return (u32) s;
 }
+#else
+static inline unsigned long csum_tcpudp_nofold(unsigned long saddr,
+                                                   unsigned long daddr,
+                                                   unsigned short len,
+                                                   unsigned short proto,
+                                                   unsigned int sum)
+{
+    __asm__("\n\
+        addc %0,%0,%1 \n\
+        adde %0,%0,%2 \n\
+        adde %0,%0,%3 \n\
+        addze %0,%0 \n\
+        "
+        : "=r" (sum)
+        : "r" (daddr), "r"(saddr), "r"((proto<<16)+len), "0"(sum));
+    return sum;
+}
 
 #endif
+#endif
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
new file mode 100644
index 000000000000..c019501daceb
--- /dev/null
+++ b/include/asm-powerpc/cputable.h
@@ -0,0 +1,427 @@
+#ifndef __ASM_POWERPC_CPUTABLE_H
+#define __ASM_POWERPC_CPUTABLE_H
+
+#include <linux/config.h>
+#include <asm/ppc_asm.h> /* for ASM_CONST */
+
+#define PPC_FEATURE_32                  0x80000000
+#define PPC_FEATURE_64                  0x40000000
+#define PPC_FEATURE_601_INSTR           0x20000000
+#define PPC_FEATURE_HAS_ALTIVEC         0x10000000
+#define PPC_FEATURE_HAS_FPU             0x08000000
+#define PPC_FEATURE_HAS_MMU             0x04000000
+#define PPC_FEATURE_HAS_4xxMAC          0x02000000
+#define PPC_FEATURE_UNIFIED_CACHE       0x01000000
+#define PPC_FEATURE_HAS_SPE             0x00800000
+#define PPC_FEATURE_HAS_EFP_SINGLE      0x00400000
+#define PPC_FEATURE_HAS_EFP_DOUBLE      0x00200000
+#define PPC_FEATURE_NO_TB               0x00100000
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+/* This structure can grow, it's real size is used by head.S code
+ * via the mkdefs mechanism.
+ */
+struct cpu_spec;
+struct op_powerpc_model;
+
+typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
+
+struct cpu_spec {
+        /* CPU is matched via (PVR & pvr_mask) == pvr_value */
+        unsigned int    pvr_mask;
+        unsigned int    pvr_value;
+
+        char            *cpu_name;
+        unsigned long   cpu_features;           /* Kernel features */
+        unsigned int    cpu_user_features;      /* Userland features */
+
+        /* cache line sizes */
+        unsigned int    icache_bsize;
+        unsigned int    dcache_bsize;
+
+        /* number of performance monitor counters */
+        unsigned int    num_pmcs;
+
+        /* this is called to initialize various CPU bits like L1 cache,
+         * BHT, SPD, etc... from head.S before branching to identify_machine
+         */
+        cpu_setup_t     cpu_setup;
+
+        /* Used by oprofile userspace to select the right counters */
+        char            *oprofile_cpu_type;
+
+        /* Processor specific oprofile operations */
+        struct op_powerpc_model *oprofile_model;
+};
+
+extern struct cpu_spec          *cur_cpu_spec;
+
+extern void identify_cpu(unsigned long offset, unsigned long cpu);
+extern void do_cpu_ftr_fixups(unsigned long offset);
+
+#endif /* __ASSEMBLY__ */
+
+/* CPU kernel features */
+
+/* Retain the 32b definitions all use bottom half of word */
+#define CPU_FTR_SPLIT_ID_CACHE          ASM_CONST(0x0000000000000001)
+#define CPU_FTR_L2CR                    ASM_CONST(0x0000000000000002)
+#define CPU_FTR_SPEC7450                ASM_CONST(0x0000000000000004)
+#define CPU_FTR_ALTIVEC                 ASM_CONST(0x0000000000000008)
+#define CPU_FTR_TAU                     ASM_CONST(0x0000000000000010)
+#define CPU_FTR_CAN_DOZE                ASM_CONST(0x0000000000000020)
+#define CPU_FTR_USE_TB                  ASM_CONST(0x0000000000000040)
+#define CPU_FTR_604_PERF_MON            ASM_CONST(0x0000000000000080)
+#define CPU_FTR_601                     ASM_CONST(0x0000000000000100)
+#define CPU_FTR_HPTE_TABLE              ASM_CONST(0x0000000000000200)
+#define CPU_FTR_CAN_NAP                 ASM_CONST(0x0000000000000400)
+#define CPU_FTR_L3CR                    ASM_CONST(0x0000000000000800)
+#define CPU_FTR_L3_DISABLE_NAP          ASM_CONST(0x0000000000001000)
+#define CPU_FTR_NAP_DISABLE_L2_PR       ASM_CONST(0x0000000000002000)
+#define CPU_FTR_DUAL_PLL_750FX          ASM_CONST(0x0000000000004000)
+#define CPU_FTR_NO_DPM                  ASM_CONST(0x0000000000008000)
+#define CPU_FTR_HAS_HIGH_BATS           ASM_CONST(0x0000000000010000)
+#define CPU_FTR_NEED_COHERENT           ASM_CONST(0x0000000000020000)
+#define CPU_FTR_NO_BTIC                 ASM_CONST(0x0000000000040000)
+#define CPU_FTR_BIG_PHYS                ASM_CONST(0x0000000000080000)
+
+#ifdef __powerpc64__
+/* Add the 64b processor unique features in the top half of the word */
+#define CPU_FTR_SLB                     ASM_CONST(0x0000000100000000)
+#define CPU_FTR_16M_PAGE                ASM_CONST(0x0000000200000000)
+#define CPU_FTR_TLBIEL                  ASM_CONST(0x0000000400000000)
+#define CPU_FTR_NOEXECUTE               ASM_CONST(0x0000000800000000)
+#define CPU_FTR_NODSISRALIGN            ASM_CONST(0x0000001000000000)
+#define CPU_FTR_IABR                    ASM_CONST(0x0000002000000000)
+#define CPU_FTR_MMCRA                   ASM_CONST(0x0000004000000000)
+#define CPU_FTR_CTRL                    ASM_CONST(0x0000008000000000)
+#define CPU_FTR_SMT                     ASM_CONST(0x0000010000000000)
+#define CPU_FTR_COHERENT_ICACHE         ASM_CONST(0x0000020000000000)
+#define CPU_FTR_LOCKLESS_TLBIE          ASM_CONST(0x0000040000000000)
+#define CPU_FTR_MMCRA_SIHV              ASM_CONST(0x0000080000000000)
+#else
+/* ensure on 32b processors the flags are available for compiling but
+ * don't do anything */
+#define CPU_FTR_SLB                     ASM_CONST(0x0)
+#define CPU_FTR_16M_PAGE                ASM_CONST(0x0)
+#define CPU_FTR_TLBIEL                  ASM_CONST(0x0)
+#define CPU_FTR_NOEXECUTE               ASM_CONST(0x0)
+#define CPU_FTR_NODSISRALIGN            ASM_CONST(0x0)
+#define CPU_FTR_IABR                    ASM_CONST(0x0)
+#define CPU_FTR_MMCRA                   ASM_CONST(0x0)
+#define CPU_FTR_CTRL                    ASM_CONST(0x0)
+#define CPU_FTR_SMT                     ASM_CONST(0x0)
+#define CPU_FTR_COHERENT_ICACHE         ASM_CONST(0x0)
+#define CPU_FTR_LOCKLESS_TLBIE          ASM_CONST(0x0)
+#define CPU_FTR_MMCRA_SIHV              ASM_CONST(0x0)
+#endif
+
+#ifndef __ASSEMBLY__
+
+#define CPU_FTR_PPCAS_ARCH_V2_BASE (CPU_FTR_SLB | \
+                                        CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \
+                                        CPU_FTR_NODSISRALIGN | CPU_FTR_CTRL)
+
+/* iSeries doesn't support large pages */
+#ifdef CONFIG_PPC_ISERIES
+#define CPU_FTR_PPCAS_ARCH_V2   (CPU_FTR_PPCAS_ARCH_V2_BASE)
+#else
+#define CPU_FTR_PPCAS_ARCH_V2   (CPU_FTR_PPCAS_ARCH_V2_BASE | CPU_FTR_16M_PAGE)
+#endif /* CONFIG_PPC_ISERIES */
+
+/* We only set the altivec features if the kernel was compiled with altivec
+ * support
+ */
+#ifdef CONFIG_ALTIVEC
+#define CPU_FTR_ALTIVEC_COMP    CPU_FTR_ALTIVEC
+#define PPC_FEATURE_HAS_ALTIVEC_COMP PPC_FEATURE_HAS_ALTIVEC
+#else
+#define CPU_FTR_ALTIVEC_COMP    0
+#define PPC_FEATURE_HAS_ALTIVEC_COMP    0
+#endif
+
+/* We need to mark all pages as being coherent if we're SMP or we
+ * have a 74[45]x and an MPC107 host bridge.
+ */
+#if defined(CONFIG_SMP) || defined(CONFIG_MPC10X_BRIDGE)
+#define CPU_FTR_COMMON                  CPU_FTR_NEED_COHERENT
+#else
+#define CPU_FTR_COMMON                  0
+#endif
+
+/* The powersave features NAP & DOZE seems to confuse BDI when
+   debugging. So if a BDI is used, disable theses
+ */
+#ifndef CONFIG_BDI_SWITCH
+#define CPU_FTR_MAYBE_CAN_DOZE  CPU_FTR_CAN_DOZE
+#define CPU_FTR_MAYBE_CAN_NAP   CPU_FTR_CAN_NAP
+#else
+#define CPU_FTR_MAYBE_CAN_DOZE  0
+#define CPU_FTR_MAYBE_CAN_NAP   0
+#endif
+
+#define CLASSIC_PPC (!defined(CONFIG_8xx) && !defined(CONFIG_4xx) && \
+                     !defined(CONFIG_POWER3) && !defined(CONFIG_POWER4) && \
+                     !defined(CONFIG_BOOKE))
+
+enum {
+        CPU_FTRS_PPC601 = CPU_FTR_COMMON | CPU_FTR_601 | CPU_FTR_HPTE_TABLE,
+        CPU_FTRS_603 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_604 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB | CPU_FTR_604_PERF_MON | CPU_FTR_HPTE_TABLE,
+        CPU_FTRS_740_NOTAU = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_740 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_750 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_750FX1 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
+            CPU_FTR_DUAL_PLL_750FX | CPU_FTR_NO_DPM,
+        CPU_FTRS_750FX2 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
+            CPU_FTR_NO_DPM,
+        CPU_FTRS_750FX = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
+            CPU_FTR_DUAL_PLL_750FX | CPU_FTR_HAS_HIGH_BATS,
+        CPU_FTRS_750GX = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
+            CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_TAU |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP |
+            CPU_FTR_DUAL_PLL_750FX | CPU_FTR_HAS_HIGH_BATS,
+        CPU_FTRS_7400_NOTAU = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE |
+            CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_7400 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR |
+            CPU_FTR_TAU | CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE |
+            CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_7450_20 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_7450_21 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_L3_DISABLE_NAP |
+            CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_7450_23 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_7455_1 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | CPU_FTR_HAS_HIGH_BATS |
+            CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_7455_20 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_L3_DISABLE_NAP |
+            CPU_FTR_NEED_COHERENT | CPU_FTR_HAS_HIGH_BATS,
+        CPU_FTRS_7455 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
+            CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_7447_10 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
+            CPU_FTR_NEED_COHERENT | CPU_FTR_NO_BTIC,
+        CPU_FTRS_7447 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
+            CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_7447A = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB |
+            CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 |
+            CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS |
+            CPU_FTR_NEED_COHERENT,
+        CPU_FTRS_82XX = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB,
+        CPU_FTRS_G2_LE = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
+            CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
+        CPU_FTRS_E300 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE |
+            CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
+        CPU_FTRS_CLASSIC32 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE,
+        CPU_FTRS_POWER3_32 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE,
+        CPU_FTRS_POWER4_32 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE,
+        CPU_FTRS_970_32 = CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE |
+            CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_ALTIVEC_COMP |
+            CPU_FTR_MAYBE_CAN_NAP,
+        CPU_FTRS_8XX = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB,
+        CPU_FTRS_40X = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB,
+        CPU_FTRS_44X = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB,
+        CPU_FTRS_E200 = CPU_FTR_USE_TB,
+        CPU_FTRS_E500 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB,
+        CPU_FTRS_E500_2 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_BIG_PHYS,
+        CPU_FTRS_GENERIC_32 = CPU_FTR_COMMON,
+#ifdef __powerpc64__
+        CPU_FTRS_POWER3 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_IABR,
+        CPU_FTRS_RS64 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
+            CPU_FTR_MMCRA | CPU_FTR_CTRL,
+        CPU_FTRS_POWER4 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA,
+        CPU_FTRS_PPC970 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 |
+            CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
+        CPU_FTRS_POWER5 = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 |
+            CPU_FTR_MMCRA | CPU_FTR_SMT |
+            CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
+            CPU_FTR_MMCRA_SIHV,
+        CPU_FTRS_CELL = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 |
+            CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT,
+        CPU_FTRS_COMPATIBLE = CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB |
+            CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2,
+#endif
+
+        CPU_FTRS_POSSIBLE =
+#if CLASSIC_PPC
+            CPU_FTRS_PPC601 | CPU_FTRS_603 | CPU_FTRS_604 | CPU_FTRS_740_NOTAU |
+            CPU_FTRS_740 | CPU_FTRS_750 | CPU_FTRS_750FX1 |
+            CPU_FTRS_750FX2 | CPU_FTRS_750FX | CPU_FTRS_750GX |
+            CPU_FTRS_7400_NOTAU | CPU_FTRS_7400 | CPU_FTRS_7450_20 |
+            CPU_FTRS_7450_21 | CPU_FTRS_7450_23 | CPU_FTRS_7455_1 |
+            CPU_FTRS_7455_20 | CPU_FTRS_7455 | CPU_FTRS_7447_10 |
+            CPU_FTRS_7447 | CPU_FTRS_7447A | CPU_FTRS_82XX |
+            CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_CLASSIC32 |
+#else
+            CPU_FTRS_GENERIC_32 |
+#endif
+#ifdef CONFIG_PPC64BRIDGE
+            CPU_FTRS_POWER3_32 |
+#endif
+#ifdef CONFIG_POWER4
+            CPU_FTRS_POWER4_32 | CPU_FTRS_970_32 |
+#endif
+#ifdef CONFIG_8xx
+            CPU_FTRS_8XX |
+#endif
+#ifdef CONFIG_40x
+            CPU_FTRS_40X |
+#endif
+#ifdef CONFIG_44x
+            CPU_FTRS_44X |
+#endif
+#ifdef CONFIG_E200
+            CPU_FTRS_E200 |
+#endif
+#ifdef CONFIG_E500
+            CPU_FTRS_E500 | CPU_FTRS_E500_2 |
+#endif
+#ifdef __powerpc64__
+            CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 |
+            CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_CELL |
+#endif
+            0,
+
+        CPU_FTRS_ALWAYS =
+#if CLASSIC_PPC
+            CPU_FTRS_PPC601 & CPU_FTRS_603 & CPU_FTRS_604 & CPU_FTRS_740_NOTAU &
+            CPU_FTRS_740 & CPU_FTRS_750 & CPU_FTRS_750FX1 &
+            CPU_FTRS_750FX2 & CPU_FTRS_750FX & CPU_FTRS_750GX &
+            CPU_FTRS_7400_NOTAU & CPU_FTRS_7400 & CPU_FTRS_7450_20 &
+            CPU_FTRS_7450_21 & CPU_FTRS_7450_23 & CPU_FTRS_7455_1 &
+            CPU_FTRS_7455_20 & CPU_FTRS_7455 & CPU_FTRS_7447_10 &
+            CPU_FTRS_7447 & CPU_FTRS_7447A & CPU_FTRS_82XX &
+            CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_CLASSIC32 &
+#else
+            CPU_FTRS_GENERIC_32 &
+#endif
+#ifdef CONFIG_PPC64BRIDGE
+            CPU_FTRS_POWER3_32 &
+#endif
+#ifdef CONFIG_POWER4
+            CPU_FTRS_POWER4_32 & CPU_FTRS_970_32 &
+#endif
+#ifdef CONFIG_8xx
+            CPU_FTRS_8XX &
+#endif
+#ifdef CONFIG_40x
+            CPU_FTRS_40X &
+#endif
+#ifdef CONFIG_44x
+            CPU_FTRS_44X &
+#endif
+#ifdef CONFIG_E200
+            CPU_FTRS_E200 &
+#endif
+#ifdef CONFIG_E500
+            CPU_FTRS_E500 & CPU_FTRS_E500_2 &
+#endif
+#ifdef __powerpc64__
+            CPU_FTRS_POWER3 & CPU_FTRS_RS64 & CPU_FTRS_POWER4 &
+            CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_CELL &
+#endif
+            CPU_FTRS_POSSIBLE,
+};
+
+static inline int cpu_has_feature(unsigned long feature)
+{
+        return (CPU_FTRS_ALWAYS & feature) ||
+               (CPU_FTRS_POSSIBLE
+                & cur_cpu_spec->cpu_features
+                & feature);
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#ifdef __ASSEMBLY__
+
+#define BEGIN_FTR_SECTION               98:
+
+#ifndef __powerpc64__
+#define END_FTR_SECTION(msk, val)               \
+99:                                             \
+        .section __ftr_fixup,"a";               \
+        .align 2;                               \
+        .long msk;                              \
+        .long val;                              \
+        .long 98b;                              \
+        .long 99b;                              \
+        .previous
+#else /* __powerpc64__ */
+#define END_FTR_SECTION(msk, val)               \
+99:                                             \
+        .section __ftr_fixup,"a";               \
+        .align 3;                               \
+        .llong msk;                             \
+        .llong val;                             \
+        .llong 98b;                             \
+        .llong 99b;                             \
+        .previous
+#endif /* __powerpc64__ */
+
+#define END_FTR_SECTION_IFSET(msk)      END_FTR_SECTION((msk), (msk))
+#define END_FTR_SECTION_IFCLR(msk)      END_FTR_SECTION((msk), 0)
+#endif /* __ASSEMBLY__ */
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_POWERPC_CPUTABLE_H */
diff --git a/include/asm-ppc/dbdma.h b/include/asm-powerpc/dbdma.h
index 8973565f95d3..8973565f95d3 100644
--- a/include/asm-ppc/dbdma.h
+++ b/include/asm-powerpc/dbdma.h
diff --git a/include/asm-ppc/dma.h b/include/asm-powerpc/dma.h
index cc8e5cd8c9d2..926378d2cd94 100644
--- a/include/asm-ppc/dma.h
+++ b/include/asm-powerpc/dma.h
@@ -1,18 +1,14 @@
+#ifndef _ASM_POWERPC_DMA_H
+#define _ASM_POWERPC_DMA_H
+
 /*
- * include/asm-ppc/dma.h: Defines for using and allocating dma channels.
+ * Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
  * High DMA channel support & info by Hannu Savolainen
  * and John Boyd, Nov. 1992.
  * Changes for ppc sound by Christoph Nadig
  */
 
-#ifdef __KERNEL__
-
-#include <linux/config.h>
-#include <asm/io.h>
-#include <linux/spinlock.h>
-#include <asm/system.h>
-
 /*
  * Note: Adapted for PowerPC by Gary Thomas
  * Modified by Cort Dougan <cort@cs.nmt.edu>
@@ -25,8 +21,10 @@
  * with a grain of salt.
  */
 
-#ifndef _ASM_DMA_H
-#define _ASM_DMA_H
+#include <linux/config.h>
+#include <asm/io.h>
+#include <linux/spinlock.h>
+#include <asm/system.h>
 
 #ifndef MAX_DMA_CHANNELS
 #define MAX_DMA_CHANNELS        8
@@ -34,11 +32,9 @@
 
 /* The maximum address that we can perform a DMA transfer to on this platform */
 /* Doesn't really apply... */
-#define MAX_DMA_ADDRESS         0xFFFFFFFF
+#define MAX_DMA_ADDRESS         (~0UL)
 
-/* in arch/ppc/kernel/setup.c -- Cort */
-extern unsigned long DMA_MODE_WRITE, DMA_MODE_READ;
-extern unsigned long ISA_DMA_THRESHOLD;
+#if !defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI)
 
 #ifdef HAVE_REALLY_SLOW_DMA_CONTROLLER
 #define dma_outb        outb_p
@@ -171,7 +167,18 @@ extern long ppc_cs4232_dma, ppc_cs4232_dma2;
 #define DMA1_EXT_REG            0x40B
 #define DMA2_EXT_REG            0x4D6
 
+#ifndef __powerpc64__
+    /* in arch/ppc/kernel/setup.c -- Cort */
+    extern unsigned int DMA_MODE_WRITE;
+    extern unsigned int DMA_MODE_READ;
+    extern unsigned long ISA_DMA_THRESHOLD;
+#else
+    #define DMA_MODE_READ       0x44    /* I/O to memory, no autoinit, increment, single mode */
+    #define DMA_MODE_WRITE      0x48    /* memory to I/O, no autoinit, increment, single mode */
+#endif
+
 #define DMA_MODE_CASCADE        0xC0    /* pass thru DREQ->HRQ, DACK<-HLDA only */
+
 #define DMA_AUTOINIT            0x10
 
 extern spinlock_t dma_spin_lock;
@@ -200,8 +207,9 @@ static __inline__ void enable_dma(unsigned int dmanr)
         if (dmanr <= 3) {
                 dma_outb(dmanr, DMA1_MASK_REG);
                 dma_outb(ucDmaCmd, DMA1_CMD_REG);       /* Enable group */
-        } else
+        } else {
                 dma_outb(dmanr & 3, DMA2_MASK_REG);
+        }
 }
 
 static __inline__ void disable_dma(unsigned int dmanr)
@@ -290,19 +298,26 @@ static __inline__ void set_dma_page(unsigned int dmanr, int pagenr)
 static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int phys)
 {
         if (dmanr <= 3) {
-                dma_outb(phys & 0xff, ((dmanr & 3) << 1) + IO_DMA1_BASE);
-                dma_outb((phys >> 8) & 0xff, ((dmanr & 3) << 1) + IO_DMA1_BASE);
+                dma_outb(phys & 0xff,
+                         ((dmanr & 3) << 1) + IO_DMA1_BASE);
+                dma_outb((phys >> 8) & 0xff,
+                         ((dmanr & 3) << 1) + IO_DMA1_BASE);
         } else if (dmanr == SND_DMA1 || dmanr == SND_DMA2) {
-                dma_outb(phys & 0xff, ((dmanr & 3) << 2) + IO_DMA2_BASE);
-                dma_outb((phys >> 8) & 0xff, ((dmanr & 3) << 2) + IO_DMA2_BASE);
+                dma_outb(phys & 0xff,
+                         ((dmanr & 3) << 2) + IO_DMA2_BASE);
+                dma_outb((phys >> 8) & 0xff,
+                         ((dmanr & 3) << 2) + IO_DMA2_BASE);
                 dma_outb((dmanr & 3), DMA2_EXT_REG);
         } else {
-                dma_outb((phys >> 1) & 0xff, ((dmanr & 3) << 2) + IO_DMA2_BASE);
-                dma_outb((phys >> 9) & 0xff, ((dmanr & 3) << 2) + IO_DMA2_BASE);
+                dma_outb((phys >> 1) & 0xff,
+                         ((dmanr & 3) << 2) + IO_DMA2_BASE);
+                dma_outb((phys >> 9) & 0xff,
+                         ((dmanr & 3) << 2) + IO_DMA2_BASE);
         }
         set_dma_page(dmanr, phys >> 16);
 }
 
+
 /* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
  * a specific DMA channel.
  * You must ensure the parameters are valid.
@@ -315,21 +330,24 @@ static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
 {
         count--;
         if (dmanr <= 3) {
-                dma_outb(count & 0xff, ((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
-                dma_outb((count >> 8) & 0xff, ((dmanr & 3) << 1) + 1 +
-                         IO_DMA1_BASE);
+                dma_outb(count & 0xff,
+                         ((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
+                dma_outb((count >> 8) & 0xff,
+                         ((dmanr & 3) << 1) + 1 + IO_DMA1_BASE);
         } else if (dmanr == SND_DMA1 || dmanr == SND_DMA2) {
-                dma_outb(count & 0xff, ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
-                dma_outb((count >> 8) & 0xff, ((dmanr & 3) << 2) + 2 +
-                         IO_DMA2_BASE);
+                dma_outb(count & 0xff,
+                         ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
+                dma_outb((count >> 8) & 0xff,
+                         ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
         } else {
-                dma_outb((count >> 1) & 0xff, ((dmanr & 3) << 2) + 2 +
-                         IO_DMA2_BASE);
-                dma_outb((count >> 9) & 0xff, ((dmanr & 3) << 2) + 2 +
-                         IO_DMA2_BASE);
+                dma_outb((count >> 1) & 0xff,
+                         ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
+                dma_outb((count >> 9) & 0xff,
+                         ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE);
         }
 }
 
+
 /* Get DMA residue count. After a DMA transfer, this
  * should return zero. Reading this while a DMA transfer is
  * still in progress will return unpredictable results.
@@ -340,8 +358,8 @@ static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
  */
 static __inline__ int get_dma_residue(unsigned int dmanr)
 {
-        unsigned int io_port = (dmanr <= 3) ?
-            ((dmanr & 3) << 1) + 1 + IO_DMA1_BASE
+        unsigned int io_port = (dmanr <= 3)
+            ? ((dmanr & 3) << 1) + 1 + IO_DMA1_BASE
             : ((dmanr & 3) << 2) + 2 + IO_DMA2_BASE;
 
         /* using short to get 16-bit wrap around */
@@ -352,7 +370,6 @@ static __inline__ int get_dma_residue(unsigned int dmanr)
 
         return (dmanr <= 3 || dmanr == SND_DMA1 || dmanr == SND_DMA2)
             ? count : (count << 1);
-
 }
 
 /* These are in kernel/dma.c: */
@@ -367,5 +384,7 @@ extern int isa_dma_bridge_buggy;
 #else
 #define isa_dma_bridge_buggy    (0)
 #endif
-#endif                          /* _ASM_DMA_H */
-#endif                          /* __KERNEL__ */
+
+#endif  /* !defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI) */
+
+#endif  /* _ASM_POWERPC_DMA_H */
diff --git a/include/asm-ppc64/elf.h b/include/asm-powerpc/elf.h
index c919a89343db..d22b10021b5d 100644
--- a/include/asm-ppc64/elf.h
+++ b/include/asm-powerpc/elf.h
@@ -1,10 +1,11 @@
-#ifndef __PPC64_ELF_H
-#define __PPC64_ELF_H
+#ifndef _ASM_POWERPC_ELF_H
+#define _ASM_POWERPC_ELF_H
 
 #include <asm/types.h>
 #include <asm/ptrace.h>
 #include <asm/cputable.h>
 #include <asm/auxvec.h>
+#include <asm/page.h>
 
 /* PowerPC relocations defined by the ABIs */
 #define R_PPC_NONE              0
@@ -75,7 +76,7 @@
 #define R_PPC_GOT_DTPREL16_HI   93 /* half16*   (sym+add)@got@dtprel@h */
 #define R_PPC_GOT_DTPREL16_HA   94 /* half16*   (sym+add)@got@dtprel@ha */
 
-/* Keep this the last entry.  */
+/* keep this the last entry. */
 #define R_PPC_NUM               95
 
 /*
@@ -90,8 +91,6 @@
 
 #define ELF_NGREG       48      /* includes nip, msr, lr, etc. */
 #define ELF_NFPREG      33      /* includes fpscr */
-#define ELF_NVRREG32    33      /* includes vscr & vrsave stuffed together */
-#define ELF_NVRREG      34      /* includes vscr & vrsave in split vectors */
 
 typedef unsigned long elf_greg_t64;
 typedef elf_greg_t64 elf_gregset_t64[ELF_NGREG];
@@ -100,8 +99,21 @@ typedef unsigned int elf_greg_t32;
 typedef elf_greg_t32 elf_gregset_t32[ELF_NGREG];
 
 /*
- * These are used to set parameters in the core dumps.
+ * ELF_ARCH, CLASS, and DATA are used to set parameters in the core dumps.
  */
+#ifdef __powerpc64__
+# define ELF_NVRREG32   33      /* includes vscr & vrsave stuffed together */
+# define ELF_NVRREG     34      /* includes vscr & vrsave in split vectors */
+# define ELF_GREG_TYPE  elf_greg_t64
+#else
+# define ELF_NEVRREG    34      /* includes acc (as 2) */
+# define ELF_NVRREG     33      /* includes vscr */
+# define ELF_GREG_TYPE  elf_greg_t32
+# define ELF_ARCH       EM_PPC
+# define ELF_CLASS      ELFCLASS32
+# define ELF_DATA       ELFDATA2MSB
+#endif /* __powerpc64__ */
+
 #ifndef ELF_ARCH
 # define ELF_ARCH       EM_PPC64
 # define ELF_CLASS      ELFCLASS64
@@ -114,8 +126,9 @@ typedef elf_greg_t32 elf_gregset_t32[ELF_NGREG];
   typedef elf_greg_t32 elf_greg_t;
   typedef elf_gregset_t32 elf_gregset_t;
 # define elf_addr_t u32
-#endif
+#endif /* ELF_ARCH */
 
+/* Floating point registers */
 typedef double elf_fpreg_t;
 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
@@ -125,7 +138,9 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  * The entry with index 32 contains the vscr as the last word (offset 12) 
  * within the quadword.  This allows the vscr to be stored as either a 
  * quadword (since it must be copied via a vector register to/from storage) 
- * or as a word.  The entry with index 33 contains the vrsave as the first 
+ * or as a word.  
+ *
+ * 64-bit kernel notes: The entry at index 33 contains the vrsave as the first  
  * word (offset 0) within the quadword.
  *
  * This definition of the VMX state is compatible with the current PPC32 
@@ -138,7 +153,9 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  */
 typedef __vector128 elf_vrreg_t;
 typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
+#ifdef __powerpc64__
 typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32];
+#endif
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.
@@ -146,7 +163,7 @@ typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32];
 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
 
 #define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       4096
+#define ELF_EXEC_PAGESIZE       PAGE_SIZE
 
 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
    use of this is to invoke "./ld.so someprog" to test out a new version of
@@ -158,26 +175,30 @@ typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32];
 #ifdef __KERNEL__
 
 /* Common routine for both 32-bit and 64-bit processes */
-static inline void ppc64_elf_core_copy_regs(elf_gregset_t elf_regs,
+static inline void ppc_elf_core_copy_regs(elf_gregset_t elf_regs,
                                             struct pt_regs *regs)
 {
         int i;
-        int gprs = sizeof(struct pt_regs)/sizeof(elf_greg_t64);
+        int gprs = sizeof(struct pt_regs)/sizeof(ELF_GREG_TYPE);
 
         if (gprs > ELF_NGREG)
                 gprs = ELF_NGREG;
 
         for (i=0; i < gprs; i++)
-                elf_regs[i] = (elf_greg_t)((elf_greg_t64 *)regs)[i];
+                elf_regs[i] = (elf_greg_t)((ELF_GREG_TYPE *)regs)[i];
+
+        memset((char *)(elf_regs) + sizeof(struct pt_regs), 0,          \
+               sizeof(elf_gregset_t) - sizeof(struct pt_regs));
+
 }
-#define ELF_CORE_COPY_REGS(gregs, regs) ppc64_elf_core_copy_regs(gregs, regs);
+#define ELF_CORE_COPY_REGS(gregs, regs) ppc_elf_core_copy_regs(gregs, regs);
 
 static inline int dump_task_regs(struct task_struct *tsk,
                                  elf_gregset_t *elf_regs)
 {
         struct pt_regs *regs = tsk->thread.regs;
         if (regs)
-                ppc64_elf_core_copy_regs(*elf_regs, regs);
+                ppc_elf_core_copy_regs(*elf_regs, regs);
 
         return 1;
 }
@@ -186,15 +207,17 @@ static inline int dump_task_regs(struct task_struct *tsk,
 extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); 
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
-/* XXX Should we define the XFPREGS using altivec ??? */
-
-#endif
+#endif /* __KERNEL__ */
 
-/* This yields a mask that user programs can use to figure out what
+/* ELF_HWCAP yields a mask that user programs can use to figure out what
    instruction set this cpu supports.  This could be done in userspace,
    but it's not easy, and we've already done it here.  */
-
-#define ELF_HWCAP       (cur_cpu_spec->cpu_user_features)
+# define ELF_HWCAP      (cur_cpu_spec->cpu_user_features)
+#ifdef __powerpc64__
+# define ELF_PLAT_INIT(_r, load_addr)   do {    \
+        _r->gpr[2] = load_addr;                 \
+} while (0)
+#endif /* __powerpc64__ */
 
 /* This yields a string that ld.so will use to load implementation
    specific libraries for optimization.  This is more specific in
@@ -205,14 +228,10 @@ extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
 
 #define ELF_PLATFORM    (NULL)
 
-#define ELF_PLAT_INIT(_r, load_addr)    do { \
-        memset(_r->gpr, 0, sizeof(_r->gpr)); \
-        _r->ctr = _r->link = _r->xer = _r->ccr = 0; \
-        _r->gpr[2] = load_addr; \
-} while (0)
-
 #ifdef __KERNEL__
-#define SET_PERSONALITY(ex, ibcs2)                              \
+
+#ifdef __powerpc64__
+# define SET_PERSONALITY(ex, ibcs2)                             \
 do {                                                            \
         unsigned long new_flags = 0;                            \
         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)               \
@@ -225,7 +244,6 @@ do {								\
         if (personality(current->personality) != PER_LINUX32)   \
                 set_personality(PER_LINUX);                     \
 } while (0)
-
 /*
  * An executable for which elf_read_implies_exec() returns TRUE will
  * have the READ_IMPLIES_EXEC personality flag set automatically. This
@@ -233,19 +251,26 @@ do {								\
  * the 64bit ABI has never had these issues dont enable the workaround
  * even if we have an executable stack.
  */
-#define elf_read_implies_exec(ex, exec_stk) (test_thread_flag(TIF_32BIT) ? \
+# define elf_read_implies_exec(ex, exec_stk) (test_thread_flag(TIF_32BIT) ? \
                 (exec_stk != EXSTACK_DISABLE_X) : 0)
+#else 
+# define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
+#endif /* __powerpc64__ */
 
-#endif
+#endif /* __KERNEL__ */
 
 extern int dcache_bsize;
 extern int icache_bsize;
 extern int ucache_bsize;
 
-/* We do have an arch_setup_additional_pages for vDSO matters */
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
+#ifdef __powerpc64__
 struct linux_binprm;
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES /* vDSO has arch_setup_additional_pages */
 extern int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack);
+#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
+#else
+#define VDSO_AUX_ENT(a,b)
+#endif /* __powerpc64__ */
 
 /*
  * The requirements here are:
@@ -265,9 +290,8 @@ do {									\
         NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize);                      \
         NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize);                      \
         NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize);                      \
-        /* vDSO base */                                                 \
-        NEW_AUX_ENT(AT_SYSINFO_EHDR, current->thread.vdso_base);        \
- } while (0)
+        VDSO_AUX_ENT(AT_SYSINFO_EHDR, current->thread.vdso_base)        \
+} while (0)
 
 /* PowerPC64 relocations defined by the ABIs */
 #define R_PPC64_NONE    R_PPC_NONE
@@ -384,4 +408,4 @@ do {									\
 /* Keep this the last entry.  */
 #define R_PPC64_NUM             107
 
-#endif /* __PPC64_ELF_H */
+#endif /* _ASM_POWERPC_ELF_H */
diff --git a/include/asm-ppc64/firmware.h b/include/asm-powerpc/firmware.h
index 22bb85cf60af..806c142ae9ea 100644
--- a/include/asm-ppc64/firmware.h
+++ b/include/asm-powerpc/firmware.h
@@ -1,8 +1,4 @@
 /*
- *  include/asm-ppc64/firmware.h
- *
- *  Extracted from include/asm-ppc64/cputable.h
- *
  *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
  *
  *  Modifications for ppc64:
@@ -13,8 +9,8 @@
  *  as published by the Free Software Foundation; either version
  *  2 of the License, or (at your option) any later version.
  */
-#ifndef __ASM_PPC_FIRMWARE_H
-#define __ASM_PPC_FIRMWARE_H
+#ifndef __ASM_POWERPC_FIRMWARE_H
+#define __ASM_POWERPC_FIRMWARE_H
 
 #ifdef __KERNEL__
 
@@ -98,4 +94,4 @@ extern firmware_feature_t firmware_features_table[];
 
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
-#endif /* __ASM_PPC_FIRMWARE_H */
+#endif /* __ASM_POWERPC_FIRMWARE_H */
diff --git a/include/asm-powerpc/grackle.h b/include/asm-powerpc/grackle.h
new file mode 100644
index 000000000000..563c7a5e64c9
--- /dev/null
+++ b/include/asm-powerpc/grackle.h
@@ -0,0 +1,7 @@
+/*
+ * Functions for setting up and using a MPC106 northbridge
+ */
+
+#include <asm/pci-bridge.h>
+
+extern void setup_grackle(struct pci_controller *hose);
diff --git a/include/asm-ppc/hardirq.h b/include/asm-powerpc/hardirq.h
index 94f1411b1a93..3b3e3b49ec12 100644
--- a/include/asm-ppc/hardirq.h
+++ b/include/asm-powerpc/hardirq.h
@@ -1,11 +1,8 @@
-#ifdef __KERNEL__
-#ifndef __ASM_HARDIRQ_H
-#define __ASM_HARDIRQ_H
+#ifndef _ASM_POWERPC_HARDIRQ_H
+#define _ASM_POWERPC_HARDIRQ_H
 
-#include <linux/config.h>
-#include <linux/cache.h>
-#include <linux/smp_lock.h>
 #include <asm/irq.h>
+#include <asm/bug.h>
 
 /* The __last_jiffy_stamp field is needed to ensure that no decrementer
  * interrupt is lost on SMP machines. Since on most CPUs it is in the same
@@ -13,7 +10,7 @@
  * for uniformity.
  */
 typedef struct {
-        unsigned long __softirq_pending;        /* set_bit is used on this */
+        unsigned int __softirq_pending; /* set_bit is used on this */
         unsigned int __last_jiffy_stamp;
 } ____cacheline_aligned irq_cpustat_t;
 
@@ -27,5 +24,4 @@ static inline void ack_bad_irq(int irq)
         BUG();
 }
 
-#endif /* __ASM_HARDIRQ_H */
-#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_HARDIRQ_H */
diff --git a/include/asm-ppc/heathrow.h b/include/asm-powerpc/heathrow.h
index 22ac179856b9..22ac179856b9 100644
--- a/include/asm-ppc/heathrow.h
+++ b/include/asm-powerpc/heathrow.h
diff --git a/include/asm-ppc64/hw_irq.h b/include/asm-powerpc/hw_irq.h
index baea40e695ec..c37b31b96337 100644
--- a/include/asm-ppc64/hw_irq.h
+++ b/include/asm-powerpc/hw_irq.h
@@ -1,22 +1,17 @@
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
- *
- * Use inline IRQs where possible - Anton Blanchard <anton@au.ibm.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
  */
+#ifndef _ASM_POWERPC_HW_IRQ_H
+#define _ASM_POWERPC_HW_IRQ_H
+
 #ifdef __KERNEL__
-#ifndef _PPC64_HW_IRQ_H
-#define _PPC64_HW_IRQ_H
 
 #include <linux/config.h>
 #include <linux/errno.h>
-#include <asm/irq.h>
+#include <asm/ptrace.h>
+#include <asm/processor.h>
 
-int timer_interrupt(struct pt_regs *);
+extern void timer_interrupt(struct pt_regs *);
 extern void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq);
 
 #ifdef CONFIG_PPC_ISERIES
@@ -33,45 +28,60 @@ extern void local_irq_restore(unsigned long);
 
 #else
 
-#define local_save_flags(flags) ((flags) = mfmsr())
+#if defined(CONFIG_BOOKE)
+#define SET_MSR_EE(x)   mtmsr(x)
+#define local_irq_restore(flags)        __asm__ __volatile__("wrtee %0" : : "r" (flags) : "memory")
+#elif defined(__powerpc64__)
+#define SET_MSR_EE(x)   __mtmsrd(x, 1)
 #define local_irq_restore(flags) do { \
         __asm__ __volatile__("": : :"memory"); \
         __mtmsrd((flags), 1); \
 } while(0)
+#else
+#define SET_MSR_EE(x)   mtmsr(x)
+#define local_irq_restore(flags)        mtmsr(flags)
+#endif
 
 static inline void local_irq_disable(void)
 {
+#ifdef CONFIG_BOOKE
+        __asm__ __volatile__("wrteei 0": : :"memory");
+#else
         unsigned long msr;
-        msr = mfmsr();
-        __mtmsrd(msr & ~MSR_EE, 1);
         __asm__ __volatile__("": : :"memory");
+        msr = mfmsr();
+        SET_MSR_EE(msr & ~MSR_EE);
+#endif
 }
 
 static inline void local_irq_enable(void)
 {
+#ifdef CONFIG_BOOKE
+        __asm__ __volatile__("wrteei 1": : :"memory");
+#else
         unsigned long msr;
         __asm__ __volatile__("": : :"memory");
         msr = mfmsr();
-        __mtmsrd(msr | MSR_EE, 1);
+        SET_MSR_EE(msr | MSR_EE);
+#endif
 }
 
-static inline void __do_save_and_cli(unsigned long *flags)
+static inline void local_irq_save_ptr(unsigned long *flags)
 {
         unsigned long msr;
         msr = mfmsr();
         *flags = msr;
-        __mtmsrd(msr & ~MSR_EE, 1);
+#ifdef CONFIG_BOOKE
+        __asm__ __volatile__("wrteei 0": : :"memory");
+#else
+        SET_MSR_EE(msr & ~MSR_EE);
+#endif
         __asm__ __volatile__("": : :"memory");
 }
 
-#define local_irq_save(flags)          __do_save_and_cli(&flags)
-
-#define irqs_disabled()                         \
-({                                              \
-        unsigned long flags;                    \
-        local_save_flags(flags);                \
-        !(flags & MSR_EE);                      \
-})
+#define local_save_flags(flags) ((flags) = mfmsr())
+#define local_irq_save(flags)   local_irq_save_ptr(&flags)
+#define irqs_disabled()         ((mfmsr() & MSR_EE) == 0)
 
 #endif /* CONFIG_PPC_ISERIES */
 
@@ -99,6 +109,6 @@ static inline void __do_save_and_cli(unsigned long *flags)
  */
 struct hw_interrupt_type;
 static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) {}
- 
-#endif /* _PPC64_HW_IRQ_H */
-#endif /* __KERNEL__ */
+
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_HW_IRQ_H */
diff --git a/include/asm-powerpc/i8259.h b/include/asm-powerpc/i8259.h
new file mode 100644
index 000000000000..fc4bfee124d7
--- /dev/null
+++ b/include/asm-powerpc/i8259.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_POWERPC_I8259_H
+#define _ASM_POWERPC_I8259_H
+
+#include <linux/irq.h>
+
+extern struct hw_interrupt_type i8259_pic;
+
+extern void i8259_init(unsigned long intack_addr, int offset);
+extern int i8259_irq(struct pt_regs *regs);
+extern int i8259_irq_cascade(struct pt_regs *regs, void *unused);
+
+#endif /* _ASM_POWERPC_I8259_H */
diff --git a/include/asm-ppc64/iommu.h b/include/asm-powerpc/iommu.h
index c2f3b6e8a42f..9d91bdd667ae 100644
--- a/include/asm-ppc64/iommu.h
+++ b/include/asm-powerpc/iommu.h
@@ -1,5 +1,4 @@
 /*
- * iommu.h
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
  * Rewrite, cleanup:
  * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
@@ -22,6 +21,7 @@
 #ifndef _ASM_IOMMU_H
 #define _ASM_IOMMU_H
 
+#include <linux/config.h>
 #include <asm/types.h>
 #include <linux/spinlock.h>
 #include <linux/device.h>
@@ -29,44 +29,11 @@
 
 /*
  * IOMAP_MAX_ORDER defines the largest contiguous block
- * of dma (tce) space we can get.  IOMAP_MAX_ORDER = 13
+ * of dma space we can get.  IOMAP_MAX_ORDER = 13
  * allows up to 2**12 pages (4096 * 4096) = 16 MB
  */
 #define IOMAP_MAX_ORDER 13
 
-/*
- * Tces come in two formats, one for the virtual bus and a different
- * format for PCI
- */
-#define TCE_VB  0
-#define TCE_PCI 1
-
-/* tce_entry
- * Used by pSeries (SMP) and iSeries/pSeries LPAR, but there it's
- * abstracted so layout is irrelevant.
- */
-union tce_entry {
-        unsigned long te_word;
-        struct {
-                unsigned int  tb_cacheBits :6;  /* Cache hash bits - not used */
-                unsigned int  tb_rsvd      :6;
-                unsigned long tb_rpn       :40; /* Real page number */
-                unsigned int  tb_valid     :1;  /* Tce is valid (vb only) */
-                unsigned int  tb_allio     :1;  /* Tce is valid for all lps (vb only) */
-                unsigned int  tb_lpindex   :8;  /* LpIndex for user of TCE (vb only) */
-                unsigned int  tb_pciwr     :1;  /* Write allowed (pci only) */
-                unsigned int  tb_rdwr      :1;  /* Read allowed  (pci), Write allowed (vb) */
-        } te_bits;
-#define te_cacheBits te_bits.tb_cacheBits
-#define te_rpn       te_bits.tb_rpn
-#define te_valid     te_bits.tb_valid
-#define te_allio     te_bits.tb_allio
-#define te_lpindex   te_bits.tb_lpindex
-#define te_pciwr     te_bits.tb_pciwr
-#define te_rdwr      te_bits.tb_rdwr
-};
-
-
 struct iommu_table {
         unsigned long  it_busno;     /* Bus number this table belongs to */
         unsigned long  it_size;      /* Size of iommu table in entries */
@@ -83,6 +50,7 @@ struct iommu_table {
 };
 
 struct scatterlist;
+struct device_node;
 
 #ifdef CONFIG_PPC_MULTIPLATFORM
 
@@ -104,9 +72,8 @@ extern void iommu_devnode_init_pSeries(struct device_node *dn);
 
 #ifdef CONFIG_PPC_ISERIES
 
-struct iSeries_Device_Node;
 /* Creates table for an individual device node */
-extern void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn);
+extern void iommu_devnode_init_iSeries(struct device_node *dn);
 
 #endif /* CONFIG_PPC_ISERIES */
 
diff --git a/include/asm-ppc/irq.h b/include/asm-powerpc/irq.h
index bd9674807f05..c7c3f912a3c2 100644
--- a/include/asm-ppc/irq.h
+++ b/include/asm-powerpc/irq.h
@@ -1,11 +1,23 @@
 #ifdef __KERNEL__
-#ifndef _ASM_IRQ_H
-#define _ASM_IRQ_H
+#ifndef _ASM_POWERPC_IRQ_H
+#define _ASM_POWERPC_IRQ_H
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
 
 #include <linux/config.h>
-#include <asm/machdep.h>                /* ppc_md */
+#include <linux/threads.h>
+
+#include <asm/types.h>
 #include <asm/atomic.h>
 
+/* this number is used when no interrupt has been assigned */
+#define NO_IRQ                  (-1)
+
 /*
  * These constants are used for passing information about interrupt
  * signal polarity and level/edge sensing to the low-level PIC chip
@@ -24,6 +36,50 @@
  */
 #define ARCH_HAS_IRQ_PER_CPU
 
+#define get_irq_desc(irq) (&irq_desc[(irq)])
+
+/* Define a way to iterate across irqs. */
+#define for_each_irq(i) \
+        for ((i) = 0; (i) < NR_IRQS; ++(i))
+
+#ifdef CONFIG_PPC64
+
+/*
+ * Maximum number of interrupt sources that we can handle.
+ */
+#define NR_IRQS         512
+
+/* Interrupt numbers are virtual in case they are sparsely
+ * distributed by the hardware.
+ */
+extern unsigned int virt_irq_to_real_map[NR_IRQS];
+
+/* Create a mapping for a real_irq if it doesn't already exist.
+ * Return the virtual irq as a convenience.
+ */
+int virt_irq_create_mapping(unsigned int real_irq);
+void virt_irq_init(void);
+
+static inline unsigned int virt_irq_to_real(unsigned int virt_irq)
+{
+        return virt_irq_to_real_map[virt_irq];
+}
+
+extern unsigned int real_irq_to_virt_slowpath(unsigned int real_irq);
+
+/*
+ * List of interrupt controllers.
+ */
+#define IC_INVALID    0
+#define IC_OPEN_PIC   1
+#define IC_PPC_XIC    2
+#define IC_BPA_IIC    3
+#define IC_ISERIES    4
+
+extern u64 ppc64_interrupt_controller;
+
+#else /* 32-bit */
+
 #if defined(CONFIG_40x)
 #include <asm/ibm4xx.h>
 
@@ -66,11 +122,6 @@
 #define NR_UIC_IRQS UIC_WIDTH
 #define NR_IRQS         ((NR_UIC_IRQS * NR_UICS) + NR_BOARD_IRQS)
 #endif
-static __inline__ int
-irq_canonicalize(int irq)
-{
-        return (irq);
-}
 
 #elif defined(CONFIG_44x)
 #include <asm/ibm44x.h>
@@ -78,12 +129,6 @@ irq_canonicalize(int irq)
 #define NR_UIC_IRQS     32
 #define NR_IRQS         ((NR_UIC_IRQS * NR_UICS) + NR_BOARD_IRQS)
 
-static __inline__ int
-irq_canonicalize(int irq)
-{
-        return (irq);
-}
-
 #elif defined(CONFIG_8xx)
 
 /* Now include the board configuration specific associations.
@@ -170,20 +215,9 @@ irq_canonicalize(int irq)
  */
 #define mk_int_int_mask(IL) (1 << (7 - (IL/2)))
 
-/* always the same on 8xx -- Cort */
-static __inline__ int irq_canonicalize(int irq)
-{
-        return irq;
-}
-
 #elif defined(CONFIG_83xx)
 #include <asm/mpc83xx.h>
 
-static __inline__ int irq_canonicalize(int irq)
-{
-        return irq;
-}
-
 #define NR_IRQS (NR_IPIC_INTS)
 
 #elif defined(CONFIG_85xx)
@@ -307,17 +341,13 @@ static __inline__ int irq_canonicalize(int irq)
 #define SIU_INT_PC1             ((uint)0x3e+CPM_IRQ_OFFSET)
 #define SIU_INT_PC0             ((uint)0x3f+CPM_IRQ_OFFSET)
 
-static __inline__ int irq_canonicalize(int irq)
-{
-        return irq;
-}
-
 #else /* CONFIG_40x + CONFIG_8xx */
 /*
  * this is the # irq's for all ppc arch's (pmac/chrp/prep)
  * so it is the max of them all
  */
 #define NR_IRQS                 256
+#define __DO_IRQ_CANON  1
 
 #ifndef CONFIG_8260
 
@@ -394,25 +424,81 @@ static __inline__ int irq_canonicalize(int irq)
 
 #endif /* CONFIG_8260 */
 
+#endif
+
+#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
+/* pedantic: these are long because they are used with set_bit --RR */
+extern unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
+extern unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
+extern atomic_t ppc_n_lost_interrupts;
+
+#define virt_irq_create_mapping(x)      (x)
+
+#endif
+
 /*
- * This gets called from serial.c, which is now used on
- * powermacs as well as prep/chrp boxes.
- * Prep and chrp both have cascaded 8259 PICs.
+ * Because many systems have two overlapping names spaces for
+ * interrupts (ISA and XICS for example), and the ISA interrupts
+ * have historically not been easy to renumber, we allow ISA
+ * interrupts to take values 0 - 15, and shift up the remaining
+ * interrupts by 0x10.
  */
+#define NUM_ISA_INTERRUPTS      0x10
+extern int __irq_offset_value;
+
+static inline int irq_offset_up(int irq)
+{
+        return(irq + __irq_offset_value);
+}
+
+static inline int irq_offset_down(int irq)
+{
+        return(irq - __irq_offset_value);
+}
+
+static inline int irq_offset_value(void)
+{
+        return __irq_offset_value;
+}
+
+#ifdef __DO_IRQ_CANON
+extern int ppc_do_canonicalize_irqs;
+#else
+#define ppc_do_canonicalize_irqs        0
+#endif
+
 static __inline__ int irq_canonicalize(int irq)
 {
-        if (ppc_md.irq_canonicalize)
-                return ppc_md.irq_canonicalize(irq);
+        if (ppc_do_canonicalize_irqs && irq == 2)
+                irq = 9;
         return irq;
 }
 
-#endif
+extern int distribute_irqs;
 
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
-/* pedantic: these are long because they are used with set_bit --RR */
-extern unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
-extern unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
-extern atomic_t ppc_n_lost_interrupts;
+struct irqaction;
+struct pt_regs;
+
+#ifdef CONFIG_IRQSTACKS
+/*
+ * Per-cpu stacks for handling hard and soft interrupts.
+ */
+extern struct thread_info *hardirq_ctx[NR_CPUS];
+extern struct thread_info *softirq_ctx[NR_CPUS];
+
+extern void irq_ctx_init(void);
+extern void call_do_softirq(struct thread_info *tp);
+extern int call_handle_IRQ_event(int irq, struct pt_regs *regs,
+                        struct irqaction *action, struct thread_info *tp);
+
+#define __ARCH_HAS_DO_SOFTIRQ
+
+#else
+#define irq_ctx_init()
+
+#endif /* CONFIG_IRQSTACKS */
+
+extern void do_IRQ(struct pt_regs *regs);
 
 #endif /* _ASM_IRQ_H */
 #endif /* __KERNEL__ */
diff --git a/include/asm-ppc64/kdebug.h b/include/asm-powerpc/kdebug.h
index d383d161cf8d..9dcbac674811 100644
--- a/include/asm-ppc64/kdebug.h
+++ b/include/asm-powerpc/kdebug.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_KDEBUG_H
-#define _PPC64_KDEBUG_H 1
+#ifndef _ASM_POWERPC_KDEBUG_H
+#define _ASM_POWERPC_KDEBUG_H
 
 /* nearly identical to x86_64/i386 code */
 
@@ -21,7 +21,7 @@ struct die_args {
    then free.
  */
 int register_die_notifier(struct notifier_block *nb);
-extern struct notifier_block *ppc64_die_chain;
+extern struct notifier_block *powerpc_die_chain;
 
 /* Grossly misnamed. */
 enum die_val {
@@ -30,14 +30,13 @@ enum die_val {
         DIE_DABR_MATCH,
         DIE_BPT,
         DIE_SSTEP,
-        DIE_GPF,
         DIE_PAGE_FAULT,
 };
 
 static inline int notify_die(enum die_val val,char *str,struct pt_regs *regs,long err,int trap, int sig)
 {
         struct die_args args = { .regs=regs, .str=str, .err=err, .trapnr=trap,.signr=sig };
-        return notifier_call_chain(&ppc64_die_chain, val, &args);
+        return notifier_call_chain(&powerpc_die_chain, val, &args);
 }
 
-#endif
+#endif /* _ASM_POWERPC_KDEBUG_H */
diff --git a/include/asm-ppc/keylargo.h b/include/asm-powerpc/keylargo.h
index a669a3f0f5a2..a669a3f0f5a2 100644
--- a/include/asm-ppc/keylargo.h
+++ b/include/asm-powerpc/keylargo.h
diff --git a/include/asm-powerpc/kmap_types.h b/include/asm-powerpc/kmap_types.h
new file mode 100644
index 000000000000..b6bac6f61c16
--- /dev/null
+++ b/include/asm-powerpc/kmap_types.h
@@ -0,0 +1,33 @@
+#ifndef _ASM_POWERPC_KMAP_TYPES_H
+#define _ASM_POWERPC_KMAP_TYPES_H
+
+#ifdef __KERNEL__
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+enum km_type {
+        KM_BOUNCE_READ,
+        KM_SKB_SUNRPC_DATA,
+        KM_SKB_DATA_SOFTIRQ,
+        KM_USER0,
+        KM_USER1,
+        KM_BIO_SRC_IRQ,
+        KM_BIO_DST_IRQ,
+        KM_PTE0,
+        KM_PTE1,
+        KM_IRQ0,
+        KM_IRQ1,
+        KM_SOFTIRQ0,
+        KM_SOFTIRQ1,
+        KM_PPC_SYNC_PAGE,
+        KM_PPC_SYNC_ICACHE,
+        KM_TYPE_NR
+};
+
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_KMAP_TYPES_H */
diff --git a/include/asm-ppc64/kprobes.h b/include/asm-powerpc/kprobes.h
index d9129d2b038e..b2f09f17fbe0 100644
--- a/include/asm-ppc64/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -1,8 +1,7 @@
-#ifndef _ASM_KPROBES_H
-#define _ASM_KPROBES_H
+#ifndef _ASM_POWERPC_KPROBES_H
+#define _ASM_POWERPC_KPROBES_H
 /*
  *  Kernel Probes (KProbes)
- *  include/asm-ppc64/kprobes.h
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -64,4 +63,4 @@ static inline int kprobe_exceptions_notify(struct notifier_block *self,
         return 0;
 }
 #endif
-#endif                          /* _ASM_KPROBES_H */
+#endif  /* _ASM_POWERPC_KPROBES_H */
diff --git a/include/asm-ppc64/lmb.h b/include/asm-powerpc/lmb.h
index de91e034bd98..ea0afe343545 100644
--- a/include/asm-ppc64/lmb.h
+++ b/include/asm-powerpc/lmb.h
@@ -50,7 +50,7 @@ extern unsigned long __init lmb_alloc_base(unsigned long, unsigned long,
 extern unsigned long __init lmb_phys_mem_size(void);
 extern unsigned long __init lmb_end_of_DRAM(void);
 extern unsigned long __init lmb_abs_to_phys(unsigned long);
-extern void __init lmb_enforce_memory_limit(void);
+extern void __init lmb_enforce_memory_limit(unsigned long);
 
 extern void lmb_dump_all(void);
 
diff --git a/include/asm-ppc64/machdep.h b/include/asm-powerpc/machdep.h
index 8027160ec96d..451b345cfc78 100644
--- a/include/asm-ppc64/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -1,6 +1,6 @@
+#ifndef _ASM_POWERPC_MACHDEP_H
+#define _ASM_POWERPC_MACHDEP_H
 #ifdef __KERNEL__
-#ifndef _PPC64_MACHDEP_H
-#define _PPC64_MACHDEP_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -16,6 +16,11 @@
 
 #include <asm/setup.h>
 
+/* We export this macro for external modules like Alsa to know if
+ * ppc_md.feature_call is implemented or not
+ */
+#define CONFIG_PPC_HAS_FEATURE_CALLS
+
 struct pt_regs;
 struct pci_bus; 
 struct device_node;
@@ -39,6 +44,7 @@ struct smp_ops_t {
 #endif
 
 struct machdep_calls {
+#ifdef CONFIG_PPC64
         void            (*hpte_invalidate)(unsigned long slot,
                                            unsigned long va,
                                            int large,
@@ -56,9 +62,8 @@ struct machdep_calls {
                                        unsigned long vflags,
                                        unsigned long rflags);
         long            (*hpte_remove)(unsigned long hpte_group);
-        void            (*flush_hash_range)(unsigned long context,
-                                            unsigned long number,
-                                            int local);
+        void            (*flush_hash_range)(unsigned long number, int local);
+
         /* special for kexec, to be called in real mode, linar mapping is
          * destroyed as well */
         void            (*hpte_clear_all)(void);
@@ -75,18 +80,21 @@ struct machdep_calls {
         void            (*iommu_dev_setup)(struct pci_dev *dev);
         void            (*iommu_bus_setup)(struct pci_bus *bus);
         void            (*irq_bus_setup)(struct pci_bus *bus);
+#endif
 
         int             (*probe)(int platform);
         void            (*setup_arch)(void);
         void            (*init_early)(void);
         /* Optional, may be NULL. */
-        void            (*get_cpuinfo)(struct seq_file *m);
+        void            (*show_cpuinfo)(struct seq_file *m);
+        void            (*show_percpuinfo)(struct seq_file *m, int i);
 
         void            (*init_IRQ)(void);
         int             (*get_irq)(struct pt_regs *);
         void            (*cpu_irq_down)(int secondary);
 
         /* PCI stuff */
+        /* Called after scanning the bus, before allocating resources */
         void            (*pcibios_fixup)(void);
         int             (*pci_probe_mode)(struct pci_bus *);
 
@@ -96,9 +104,13 @@ struct machdep_calls {
         void            (*panic)(char *str);
         void            (*cpu_die)(void);
 
+        long            (*time_init)(void); /* Optional, may be NULL */
+
         int             (*set_rtc_time)(struct rtc_time *);
         void            (*get_rtc_time)(struct rtc_time *);
-        void            (*get_boot_time)(struct rtc_time *);
+        unsigned long   (*get_boot_time)(void);
+        unsigned char   (*rtc_read_val)(int addr);
+        void            (*rtc_write_val)(int addr, unsigned char val);
 
         void            (*calibrate_decr)(void);
 
@@ -107,10 +119,12 @@ struct machdep_calls {
         /* Interface for platform error logging */
         void            (*log_error)(char *buf, unsigned int err_type, int fatal);
 
+        unsigned char   (*nvram_read_val)(int addr);
+        void            (*nvram_write_val)(int addr, unsigned char val);
         ssize_t         (*nvram_write)(char *buf, size_t count, loff_t *index);
         ssize_t         (*nvram_read)(char *buf, size_t count, loff_t *index);  
         ssize_t         (*nvram_size)(void);            
-        int             (*nvram_sync)(void);
+        void            (*nvram_sync)(void);
 
         /* Exception handlers */
         void            (*system_reset_exception)(struct pt_regs *regs);
@@ -130,19 +144,97 @@ struct machdep_calls {
         
         /* Get access protection for /dev/mem */
         pgprot_t        (*phys_mem_access_prot)(struct file *file,
-                                                unsigned long offset,
+                                                unsigned long pfn,
                                                 unsigned long size,
                                                 pgprot_t vma_prot);
 
         /* Idle loop for this platform, leave empty for default idle loop */
-        int             (*idle_loop)(void);
+        void            (*idle_loop)(void);
 
-        /* Function to enable pmcs for this platform, called once per cpu. */
+        /* Function to enable performance monitor counters for this
+           platform, called once per cpu. */
         void            (*enable_pmcs)(void);
+
+#ifdef CONFIG_PPC32     /* XXX for now */
+        /* A general init function, called by ppc_init in init/main.c.
+           May be NULL. */
+        void            (*init)(void);
+
+        void            (*idle)(void);
+        void            (*power_save)(void);
+
+        void            (*heartbeat)(void);
+        unsigned long   heartbeat_reset;
+        unsigned long   heartbeat_count;
+
+        void            (*setup_io_mappings)(void);
+
+        void            (*early_serial_map)(void);
+        void            (*kgdb_map_scc)(void);
+
+        /*
+         * optional PCI "hooks"
+         */
+
+        /* Called after PPC generic resource fixup to perform
+           machine specific fixups */
+        void (*pcibios_fixup_resources)(struct pci_dev *);
+
+        /* Called for each PCI bus in the system when it's probed */
+        void (*pcibios_fixup_bus)(struct pci_bus *);
+
+        /* Called when pci_enable_device() is called (initial=0) or
+         * when a device with no assigned resource is found (initial=1).
+         * Returns 0 to allow assignment/enabling of the device. */
+        int  (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
+
+        /* For interrupt routing */
+        unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
+        int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
+
+        /* Called in indirect_* to avoid touching devices */
+        int (*pci_exclude_device)(unsigned char, unsigned char);
+
+        /* Called at then very end of pcibios_init() */
+        void (*pcibios_after_init)(void);
+
+        /* this is for modules, since _machine can be a define -- Cort */
+        int ppc_machine;
+
+#ifdef CONFIG_KEXEC
+        /* Called to shutdown machine specific hardware not already controlled
+         * by other drivers.
+         * XXX Should we move this one out of kexec scope?
+         */
+        void (*machine_shutdown)(void);
+
+        /* Called to do the minimal shutdown needed to run a kexec'd kernel
+         * to run successfully.
+         * XXX Should we move this one out of kexec scope?
+         */
+        void (*machine_crash_shutdown)(void);
+
+        /* Called to do what every setup is needed on image and the
+         * reboot code buffer. Returns 0 on success.
+         * Provide your own (maybe dummy) implementation if your platform
+         * claims to support kexec.
+         */
+        int (*machine_kexec_prepare)(struct kimage *image);
+
+        /* Called to handle any machine specific cleanup on image */
+        void (*machine_kexec_cleanup)(struct kimage *image);
+
+        /* Called to perform the _real_ kexec.
+         * Do NOT allocate memory or fail here. We are past the point of
+         * no return.
+         */
+        void (*machine_kexec)(struct kimage *image);
+#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_PPC32 */
 };
 
-extern int default_idle(void);
-extern int native_idle(void);
+extern void default_idle(void);
+extern void native_idle(void);
 
 extern struct machdep_calls ppc_md;
 extern char cmd_line[COMMAND_LINE_SIZE];
@@ -162,6 +254,13 @@ extern sys_ctrler_t sys_ctrler;
 
 #endif /* CONFIG_PPC_PMAC */
 
+extern void setup_pci_ptrs(void);
+
+#ifdef CONFIG_SMP
+/* Poor default implementations */
+extern void __devinit smp_generic_give_timebase(void);
+extern void __devinit smp_generic_take_timebase(void);
+#endif /* CONFIG_SMP */
 
 
 /* Functions to produce codes on the leds.
@@ -181,5 +280,5 @@ static inline void log_error(char *buf, unsigned int err_type, int fatal)
                 ppc_md.log_error(buf, err_type, fatal);
 }
 
-#endif /* _PPC64_MACHDEP_H */
 #endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_MACHDEP_H */
diff --git a/include/asm-ppc/macio.h b/include/asm-powerpc/macio.h
index b553dd4b139e..b553dd4b139e 100644
--- a/include/asm-ppc/macio.h
+++ b/include/asm-powerpc/macio.h
diff --git a/include/asm-ppc/mediabay.h b/include/asm-powerpc/mediabay.h
index 9daa3252d7b6..9daa3252d7b6 100644
--- a/include/asm-ppc/mediabay.h
+++ b/include/asm-powerpc/mediabay.h
diff --git a/arch/ppc64/kernel/mpic.h b/include/asm-powerpc/mpic.h
index ca78a7f10528..7083d1f74260 100644
--- a/arch/ppc64/kernel/mpic.h
+++ b/include/asm-powerpc/mpic.h
@@ -1,3 +1,6 @@
+#ifndef _ASM_POWERPC_MPIC_H
+#define _ASM_POWERPC_MPIC_H
+
 #include <linux/irq.h>
 
 /*
@@ -258,12 +261,21 @@ extern void mpic_setup_this_cpu(void);
 /* Clean up for kexec (or cpu offline or ...) */
 extern void mpic_teardown_this_cpu(int secondary);
 
+/* Get the current cpu priority for this cpu (0..15) */
+extern int mpic_cpu_get_priority(void);
+
+/* Set the current cpu priority for this cpu */
+extern void mpic_cpu_set_priority(int prio);
+
 /* Request IPIs on primary mpic */
 extern void mpic_request_ipis(void);
 
 /* Send an IPI (non offseted number 0..3) */
 extern void mpic_send_ipi(unsigned int ipi_no, unsigned int cpu_mask);
 
+/* Send a message (IPI) to a given target (cpu number or MSG_*) */
+void smp_mpic_message_pass(int target, int msg);
+
 /* Fetch interrupt from a given mpic */
 extern int mpic_get_one_irq(struct mpic *mpic, struct pt_regs *regs);
 /* This one gets to the primary mpic */
@@ -271,3 +283,5 @@ extern int mpic_get_irq(struct pt_regs *regs);
 
 /* global mpic for pSeries */
 extern struct mpic *pSeries_mpic;
+
+#endif  /* _ASM_POWERPC_MPIC_H */
diff --git a/include/asm-ppc/of_device.h b/include/asm-powerpc/of_device.h
index 575bce418f80..ddb16aae0bd6 100644
--- a/include/asm-ppc/of_device.h
+++ b/include/asm-powerpc/of_device.h
@@ -1,5 +1,5 @@
-#ifndef __OF_DEVICE_H__
-#define __OF_DEVICE_H__
+#ifndef _ASM_POWERPC_OF_DEVICE_H
+#define _ASM_POWERPC_OF_DEVICE_H
 
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
@@ -61,5 +61,4 @@ extern struct of_device *of_platform_device_create(struct device_node *np,
                                                    struct device *parent);
 extern void of_release_dev(struct device *dev);
 
-#endif /* __OF_DEVICE_H__ */
-
+#endif /* _ASM_POWERPC_OF_DEVICE_H */
diff --git a/include/asm-ppc/ohare.h b/include/asm-powerpc/ohare.h
index 023b59772231..023b59772231 100644
--- a/include/asm-ppc/ohare.h
+++ b/include/asm-powerpc/ohare.h
diff --git a/include/asm-ppc64/oprofile_impl.h b/include/asm-powerpc/oprofile_impl.h
index b04f1dfb1421..8013cd273ced 100644
--- a/include/asm-ppc64/oprofile_impl.h
+++ b/include/asm-powerpc/oprofile_impl.h
@@ -9,39 +9,49 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#ifndef OP_IMPL_H
-#define OP_IMPL_H 1
+#ifndef _ASM_POWERPC_OPROFILE_IMPL_H
+#define _ASM_POWERPC_OPROFILE_IMPL_H
 
 #define OP_MAX_COUNTER 8
 
 /* Per-counter configuration as set via oprofilefs.  */
 struct op_counter_config {
+#ifdef __powerpc64__
         unsigned long valid;
+#endif
         unsigned long enabled;
         unsigned long event;
         unsigned long count;
         unsigned long kernel;
+#ifdef __powerpc64__
         /* We dont support per counter user/kernel selection */
+#endif
         unsigned long user;
         unsigned long unit_mask;
 };
 
 /* System-wide configuration as set via oprofilefs.  */
 struct op_system_config {
+#ifdef __powerpc64__
         unsigned long mmcr0;
         unsigned long mmcr1;
         unsigned long mmcra;
+#endif
         unsigned long enable_kernel;
         unsigned long enable_user;
+#ifdef __powerpc64__
         unsigned long backtrace_spinlocks;
+#endif
 };
 
 /* Per-arch configuration */
-struct op_ppc64_model {
+struct op_powerpc_model {
         void (*reg_setup) (struct op_counter_config *,
                            struct op_system_config *,
                            int num_counters);
+#ifdef __powerpc64__
         void (*cpu_setup) (void *);
+#endif
         void (*start) (struct op_counter_config *);
         void (*stop) (void);
         void (*handle_interrupt) (struct pt_regs *,
@@ -49,8 +59,9 @@ struct op_ppc64_model {
         int num_counters;
 };
 
-extern struct op_ppc64_model op_model_rs64;
-extern struct op_ppc64_model op_model_power4;
+#ifdef __powerpc64__
+extern struct op_powerpc_model op_model_rs64;
+extern struct op_powerpc_model op_model_power4;
 
 static inline unsigned int ctr_read(unsigned int i)
 {
@@ -107,5 +118,6 @@ static inline void ctr_write(unsigned int i, unsigned int val)
                 break;
         }
 }
+#endif /* __powerpc64__ */
 
-#endif
+#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */
diff --git a/include/asm-ppc64/pSeries_reconfig.h b/include/asm-powerpc/pSeries_reconfig.h
index c0db1ea7f7d1..c0db1ea7f7d1 100644
--- a/include/asm-ppc64/pSeries_reconfig.h
+++ b/include/asm-powerpc/pSeries_reconfig.h
diff --git a/include/asm-ppc/parport.h b/include/asm-powerpc/parport.h
index 11f96d3de5b6..d86b410a6f8b 100644
--- a/include/asm-ppc/parport.h
+++ b/include/asm-powerpc/parport.h
@@ -6,8 +6,8 @@
  * This file should only be included by drivers/parport/parport_pc.c.
  */
 
-#ifndef _ASM_PPC_PARPORT_H
-#define _ASM_PPC_PARPORT_H
+#ifndef _ASM_POWERPC_PARPORT_H
+#define _ASM_POWERPC_PARPORT_H
 
 static int __devinit parport_pc_find_isa_ports (int autoirq, int autodma);
 static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
@@ -15,4 +15,4 @@ static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
         return parport_pc_find_isa_ports (autoirq, autodma);
 }
 
-#endif /* !(_ASM_PPC_PARPORT_H) */
+#endif /* !(_ASM_POWERPC_PARPORT_H) */
diff --git a/include/asm-ppc/pmac_feature.h b/include/asm-powerpc/pmac_feature.h
index e9683bcff19b..e9683bcff19b 100644
--- a/include/asm-ppc/pmac_feature.h
+++ b/include/asm-powerpc/pmac_feature.h
diff --git a/include/asm-ppc/pmac_low_i2c.h b/include/asm-powerpc/pmac_low_i2c.h
index 809a5963d5e7..809a5963d5e7 100644
--- a/include/asm-ppc/pmac_low_i2c.h
+++ b/include/asm-powerpc/pmac_low_i2c.h
diff --git a/include/asm-ppc64/pmc.h b/include/asm-powerpc/pmc.h
index d1d297dbccfe..2f3c3fc2b796 100644
--- a/include/asm-ppc64/pmc.h
+++ b/include/asm-powerpc/pmc.h
@@ -16,8 +16,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _PPC64_PMC_H
-#define _PPC64_PMC_H
+#ifndef _POWERPC_PMC_H
+#define _POWERPC_PMC_H
 
 #include <asm/ptrace.h>
 
@@ -26,6 +26,21 @@ typedef void (*perf_irq_t)(struct pt_regs *);
 int reserve_pmc_hardware(perf_irq_t new_perf_irq);
 void release_pmc_hardware(void);
 
+#ifdef CONFIG_PPC64
 void power4_enable_pmcs(void);
+#endif
 
-#endif /* _PPC64_PMC_H */
+#ifdef CONFIG_FSL_BOOKE
+void init_pmc_stop(int ctr);
+void set_pmc_event(int ctr, int event);
+void set_pmc_user_kernel(int ctr, int user, int kernel);
+void set_pmc_marked(int ctr, int mark0, int mark1);
+void pmc_start_ctr(int ctr, int enable);
+void pmc_start_ctrs(int enable);
+void pmc_stop_ctrs(void);
+void dump_pmcs(void);
+
+extern struct op_powerpc_model op_model_fsl_booke;
+#endif
+
+#endif /* _POWERPC_PMC_H */
diff --git a/include/asm-ppc64/posix_types.h b/include/asm-powerpc/posix_types.h
index 516de7201b5d..c6391077224f 100644
--- a/include/asm-ppc64/posix_types.h
+++ b/include/asm-powerpc/posix_types.h
@@ -1,44 +1,54 @@
-#ifndef _PPC64_POSIX_TYPES_H
-#define _PPC64_POSIX_TYPES_H
+#ifndef _ASM_POWERPC_POSIX_TYPES_H
+#define _ASM_POWERPC_POSIX_TYPES_H
 
 /*
  * This file is generally used by user-level software, so you need to
  * be a little careful about namespace pollution etc.  Also, we cannot
  * assume GCC is being used.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
  */
 
 typedef unsigned long   __kernel_ino_t;
-typedef unsigned long   __kernel_nlink_t;
 typedef unsigned int    __kernel_mode_t;
 typedef long            __kernel_off_t;
-typedef long long       __kernel_loff_t;
 typedef int             __kernel_pid_t;
-typedef int             __kernel_ipc_pid_t;
 typedef unsigned int    __kernel_uid_t;
 typedef unsigned int    __kernel_gid_t;
-typedef unsigned long   __kernel_size_t;
-typedef long            __kernel_ssize_t;
 typedef long            __kernel_ptrdiff_t;
 typedef long            __kernel_time_t;
+typedef long            __kernel_clock_t;
 typedef int             __kernel_timer_t;
 typedef int             __kernel_clockid_t;
 typedef long            __kernel_suseconds_t;
-typedef long            __kernel_clock_t;
 typedef int             __kernel_daddr_t;
 typedef char *          __kernel_caddr_t;
 typedef unsigned short  __kernel_uid16_t;
 typedef unsigned short  __kernel_gid16_t;
 typedef unsigned int    __kernel_uid32_t;
 typedef unsigned int    __kernel_gid32_t;
-
 typedef unsigned int    __kernel_old_uid_t;
 typedef unsigned int    __kernel_old_gid_t;
+
+#ifdef __powerpc64__
+typedef unsigned long   __kernel_nlink_t;
+typedef int             __kernel_ipc_pid_t;
+typedef unsigned long   __kernel_size_t;
+typedef long            __kernel_ssize_t;
 typedef unsigned long   __kernel_old_dev_t;
+#else
+typedef unsigned short  __kernel_nlink_t;
+typedef short           __kernel_ipc_pid_t;
+typedef unsigned int    __kernel_size_t;
+typedef int             __kernel_ssize_t;
+typedef unsigned int    __kernel_old_dev_t;
+#endif
+
+#ifdef __powerpc64__
+typedef long long       __kernel_loff_t;
+#else
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+#endif
 
 typedef struct {
         int     val[2];
@@ -116,4 +126,4 @@ static __inline__ void __FD_ZERO(__kernel_fd_set *p)
 
 #endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
 #endif /* __GNUC__ */
-#endif /* _PPC64_POSIX_TYPES_H */
+#endif /* _ASM_POWERPC_POSIX_TYPES_H */
diff --git a/arch/ppc64/kernel/pci.h b/include/asm-powerpc/ppc-pci.h
index 5eb2cc320566..a88728fba8f6 100644
--- a/arch/ppc64/kernel/pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -6,8 +6,8 @@
  *      as published by the Free Software Foundation; either version
  *      2 of the License, or (at your option) any later version.
  */
-#ifndef __PPC_KERNEL_PCI_H__
-#define __PPC_KERNEL_PCI_H__
+#ifndef _ASM_POWERPC_PPC_PCI_H
+#define _ASM_POWERPC_PPC_PCI_H
 
 #include <linux/pci.h>
 #include <asm/pci-bridge.h>
@@ -51,4 +51,4 @@ extern unsigned long pci_probe_only;
 extern unsigned long pci_assign_all_buses;
 extern int pci_read_irq_line(struct pci_dev *pci_dev);
 
-#endif /* __PPC_KERNEL_PCI_H__ */
+#endif /* _ASM_POWERPC_PPC_PCI_H */
diff --git a/include/asm-ppc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h
index bb53e2def363..f99f2af82ca5 100644
--- a/include/asm-ppc/ppc_asm.h
+++ b/include/asm-powerpc/ppc_asm.h
@@ -1,38 +1,42 @@
 /*
- * include/asm-ppc/ppc_asm.h
- *
- * Definitions used by various bits of low-level assembly code on PowerPC.
- *
  * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
  */
+#ifndef _ASM_POWERPC_PPC_ASM_H
+#define _ASM_POWERPC_PPC_ASM_H
 
+#include <linux/stringify.h>
 #include <linux/config.h>
 
+#ifdef __ASSEMBLY__
+
 /*
  * Macros for storing registers into and loading registers from
  * exception frames.
  */
+#ifdef __powerpc64__
+#define SAVE_GPR(n, base)       std     n,GPR0+8*(n)(base)
+#define REST_GPR(n, base)       ld      n,GPR0+8*(n)(base)
+#define SAVE_NVGPRS(base)       SAVE_8GPRS(14, base); SAVE_10GPRS(22, base)
+#define REST_NVGPRS(base)       REST_8GPRS(14, base); REST_10GPRS(22, base)
+#else
 #define SAVE_GPR(n, base)       stw     n,GPR0+4*(n)(base)
+#define REST_GPR(n, base)       lwz     n,GPR0+4*(n)(base)
+#define SAVE_NVGPRS(base)       SAVE_GPR(13, base); SAVE_8GPRS(14, base); \
+                                SAVE_10GPRS(22, base)
+#define REST_NVGPRS(base)       REST_GPR(13, base); REST_8GPRS(14, base); \
+                                REST_10GPRS(22, base)
+#endif
+
+
 #define SAVE_2GPRS(n, base)     SAVE_GPR(n, base); SAVE_GPR(n+1, base)
 #define SAVE_4GPRS(n, base)     SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
 #define SAVE_8GPRS(n, base)     SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
 #define SAVE_10GPRS(n, base)    SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
-#define REST_GPR(n, base)       lwz     n,GPR0+4*(n)(base)
 #define REST_2GPRS(n, base)     REST_GPR(n, base); REST_GPR(n+1, base)
 #define REST_4GPRS(n, base)     REST_2GPRS(n, base); REST_2GPRS(n+2, base)
 #define REST_8GPRS(n, base)     REST_4GPRS(n, base); REST_4GPRS(n+4, base)
 #define REST_10GPRS(n, base)    REST_8GPRS(n, base); REST_2GPRS(n+8, base)
 
-#define SAVE_NVGPRS(base)       SAVE_GPR(13, base); SAVE_8GPRS(14, base); \
-                                SAVE_10GPRS(22, base)
-#define REST_NVGPRS(base)       REST_GPR(13, base); REST_8GPRS(14, base); \
-                                REST_10GPRS(22, base)
-
 #define SAVE_FPR(n, base)       stfd    n,THREAD_FPR0+8*(n)(base)
 #define SAVE_2FPRS(n, base)     SAVE_FPR(n, base); SAVE_FPR(n+1, base)
 #define SAVE_4FPRS(n, base)     SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
@@ -47,32 +51,170 @@
 #define REST_32FPRS(n, base)    REST_16FPRS(n, base); REST_16FPRS(n+16, base)
 
 #define SAVE_VR(n,b,base)       li b,THREAD_VR0+(16*(n));  stvx n,b,base
-#define SAVE_2VR(n,b,base)      SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
-#define SAVE_4VR(n,b,base)      SAVE_2VR(n,b,base); SAVE_2VR(n+2,b,base)
-#define SAVE_8VR(n,b,base)      SAVE_4VR(n,b,base); SAVE_4VR(n+4,b,base)
-#define SAVE_16VR(n,b,base)     SAVE_8VR(n,b,base); SAVE_8VR(n+8,b,base)
-#define SAVE_32VR(n,b,base)     SAVE_16VR(n,b,base); SAVE_16VR(n+16,b,base)
+#define SAVE_2VRS(n,b,base)     SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
+#define SAVE_4VRS(n,b,base)     SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base)
+#define SAVE_8VRS(n,b,base)     SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base)
+#define SAVE_16VRS(n,b,base)    SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base)
+#define SAVE_32VRS(n,b,base)    SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base)
 #define REST_VR(n,b,base)       li b,THREAD_VR0+(16*(n)); lvx n,b,base
-#define REST_2VR(n,b,base)      REST_VR(n,b,base); REST_VR(n+1,b,base)
-#define REST_4VR(n,b,base)      REST_2VR(n,b,base); REST_2VR(n+2,b,base)
-#define REST_8VR(n,b,base)      REST_4VR(n,b,base); REST_4VR(n+4,b,base)
-#define REST_16VR(n,b,base)     REST_8VR(n,b,base); REST_8VR(n+8,b,base)
-#define REST_32VR(n,b,base)     REST_16VR(n,b,base); REST_16VR(n+16,b,base)
+#define REST_2VRS(n,b,base)     REST_VR(n,b,base); REST_VR(n+1,b,base)
+#define REST_4VRS(n,b,base)     REST_2VRS(n,b,base); REST_2VRS(n+2,b,base)
+#define REST_8VRS(n,b,base)     REST_4VRS(n,b,base); REST_4VRS(n+4,b,base)
+#define REST_16VRS(n,b,base)    REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
+#define REST_32VRS(n,b,base)    REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
 
 #define SAVE_EVR(n,s,base)      evmergehi s,s,n; stw s,THREAD_EVR0+4*(n)(base)
-#define SAVE_2EVR(n,s,base)     SAVE_EVR(n,s,base); SAVE_EVR(n+1,s,base)
-#define SAVE_4EVR(n,s,base)     SAVE_2EVR(n,s,base); SAVE_2EVR(n+2,s,base)
-#define SAVE_8EVR(n,s,base)     SAVE_4EVR(n,s,base); SAVE_4EVR(n+4,s,base)
-#define SAVE_16EVR(n,s,base)    SAVE_8EVR(n,s,base); SAVE_8EVR(n+8,s,base)
-#define SAVE_32EVR(n,s,base)    SAVE_16EVR(n,s,base); SAVE_16EVR(n+16,s,base)
-
+#define SAVE_2EVRS(n,s,base)    SAVE_EVR(n,s,base); SAVE_EVR(n+1,s,base)
+#define SAVE_4EVRS(n,s,base)    SAVE_2EVRS(n,s,base); SAVE_2EVRS(n+2,s,base)
+#define SAVE_8EVRS(n,s,base)    SAVE_4EVRS(n,s,base); SAVE_4EVRS(n+4,s,base)
+#define SAVE_16EVRS(n,s,base)   SAVE_8EVRS(n,s,base); SAVE_8EVRS(n+8,s,base)
+#define SAVE_32EVRS(n,s,base)   SAVE_16EVRS(n,s,base); SAVE_16EVRS(n+16,s,base)
 #define REST_EVR(n,s,base)      lwz s,THREAD_EVR0+4*(n)(base); evmergelo n,s,n
-#define REST_2EVR(n,s,base)     REST_EVR(n,s,base); REST_EVR(n+1,s,base)
-#define REST_4EVR(n,s,base)     REST_2EVR(n,s,base); REST_2EVR(n+2,s,base)
-#define REST_8EVR(n,s,base)     REST_4EVR(n,s,base); REST_4EVR(n+4,s,base)
-#define REST_16EVR(n,s,base)    REST_8EVR(n,s,base); REST_8EVR(n+8,s,base)
-#define REST_32EVR(n,s,base)    REST_16EVR(n,s,base); REST_16EVR(n+16,s,base)
+#define REST_2EVRS(n,s,base)    REST_EVR(n,s,base); REST_EVR(n+1,s,base)
+#define REST_4EVRS(n,s,base)    REST_2EVRS(n,s,base); REST_2EVRS(n+2,s,base)
+#define REST_8EVRS(n,s,base)    REST_4EVRS(n,s,base); REST_4EVRS(n+4,s,base)
+#define REST_16EVRS(n,s,base)   REST_8EVRS(n,s,base); REST_8EVRS(n+8,s,base)
+#define REST_32EVRS(n,s,base)   REST_16EVRS(n,s,base); REST_16EVRS(n+16,s,base)
+
+/* Macros to adjust thread priority for hardware multithreading */
+#define HMT_VERY_LOW    or      31,31,31        # very low priority
+#define HMT_LOW         or      1,1,1
+#define HMT_MEDIUM_LOW  or      6,6,6           # medium low priority
+#define HMT_MEDIUM      or      2,2,2
+#define HMT_MEDIUM_HIGH or      5,5,5           # medium high priority
+#define HMT_HIGH        or      3,3,3
+
+/* handle instructions that older assemblers may not know */
+#define RFCI            .long 0x4c000066        /* rfci instruction */
+#define RFDI            .long 0x4c00004e        /* rfdi instruction */
+#define RFMCI           .long 0x4c00004c        /* rfmci instruction */
+
+#ifdef CONFIG_PPC64
+
+#define XGLUE(a,b) a##b
+#define GLUE(a,b) XGLUE(a,b)
+
+#define _GLOBAL(name) \
+        .section ".text"; \
+        .align 2 ; \
+        .globl name; \
+        .globl GLUE(.,name); \
+        .section ".opd","aw"; \
+name: \
+        .quad GLUE(.,name); \
+        .quad .TOC.@tocbase; \
+        .quad 0; \
+        .previous; \
+        .type GLUE(.,name),@function; \
+GLUE(.,name):
+
+#define _KPROBE(name) \
+        .section ".kprobes.text","a"; \
+        .align 2 ; \
+        .globl name; \
+        .globl GLUE(.,name); \
+        .section ".opd","aw"; \
+name: \
+        .quad GLUE(.,name); \
+        .quad .TOC.@tocbase; \
+        .quad 0; \
+        .previous; \
+        .type GLUE(.,name),@function; \
+GLUE(.,name):
+
+#define _STATIC(name) \
+        .section ".text"; \
+        .align 2 ; \
+        .section ".opd","aw"; \
+name: \
+        .quad GLUE(.,name); \
+        .quad .TOC.@tocbase; \
+        .quad 0; \
+        .previous; \
+        .type GLUE(.,name),@function; \
+GLUE(.,name):
+
+#else /* 32-bit */
+
+#define _GLOBAL(n)      \
+        .text;          \
+        .stabs __stringify(n:F-1),N_FUN,0,0,n;\
+        .globl n;       \
+n:
+
+#define _KPROBE(n)      \
+        .section ".kprobes.text","a";   \
+        .globl  n;      \
+n:
+
+#endif
+
+/* 
+ * LOADADDR( rn, name )
+ *   loads the address of 'name' into 'rn'
+ *
+ * LOADBASE( rn, name )
+ *   loads the address (possibly without the low 16 bits) of 'name' into 'rn'
+ *   suitable for base+disp addressing
+ */
+#ifdef __powerpc64__
+#define LOADADDR(rn,name) \
+        lis     rn,name##@highest;      \
+        ori     rn,rn,name##@higher;    \
+        rldicr  rn,rn,32,31;            \
+        oris    rn,rn,name##@h;         \
+        ori     rn,rn,name##@l
+
+#define LOADBASE(rn,name)               \
+        ld      rn,name@got(r2)
+
+#define OFF(name)       0
+
+#define SET_REG_TO_CONST(reg, value)                    \
+        lis     reg,(((value)>>48)&0xFFFF);             \
+        ori     reg,reg,(((value)>>32)&0xFFFF);         \
+        rldicr  reg,reg,32,31;                          \
+        oris    reg,reg,(((value)>>16)&0xFFFF);         \
+        ori     reg,reg,((value)&0xFFFF);
+
+#define SET_REG_TO_LABEL(reg, label)                    \
+        lis     reg,(label)@highest;                    \
+        ori     reg,reg,(label)@higher;                 \
+        rldicr  reg,reg,32,31;                          \
+        oris    reg,reg,(label)@h;                      \
+        ori     reg,reg,(label)@l;
+
+/* operations for longs and pointers */
+#define LDL     ld
+#define STL     std
+#define CMPI    cmpdi
+#define SZL     8
+
+/* offsets for stack frame layout */
+#define LRSAVE  16
+
+#else /* 32-bit */
+#define LOADADDR(rn,name) \
+        lis     rn,name@ha;     \
+        addi    rn,rn,name@l
+
+#define LOADBASE(rn,name)       \
+        lis     rn,name@ha
+
+#define OFF(name)       name@l
+
+/* operations for longs and pointers */
+#define LDL     lwz
+#define STL     stw
+#define CMPI    cmpwi
+#define SZL     4
+
+/* offsets for stack frame layout */
+#define LRSAVE  4
+
+#endif
 
+/* various errata or part fixups */
 #ifdef CONFIG_PPC601_SYNC_FIX
 #define SYNC                            \
 BEGIN_FTR_SECTION                       \
@@ -93,6 +235,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_601)
 #define ISYNC_601
 #endif
 
+
 #ifndef CONFIG_SMP
 #define TLBSYNC
 #else /* CONFIG_SMP */
@@ -104,6 +247,7 @@ BEGIN_FTR_SECTION			\
 END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #endif
 
+        
 /*
  * This instruction is not implemented on the PPC 603 or 601; however, on
  * the 403GCX and 405GP tlbia IS defined and tlbie is not.
@@ -121,18 +265,52 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
         bdnz    0b
 #endif
 
-#ifdef CONFIG_BOOKE
+
+#ifdef CONFIG_IBM405_ERR77
+#define PPC405_ERR77(ra,rb)     dcbt    ra, rb;
+#define PPC405_ERR77_SYNC       sync;
+#else
+#define PPC405_ERR77(ra,rb)
+#define PPC405_ERR77_SYNC
+#endif
+
+
+#ifdef CONFIG_IBM440EP_ERR42
+#define PPC440EP_ERR42 isync
+#else
+#define PPC440EP_ERR42
+#endif
+
+
+#if defined(CONFIG_BOOKE)
+#define toreal(rd)
+#define fromreal(rd)
+
 #define tophys(rd,rs)                           \
         addis   rd,rs,0
 
 #define tovirt(rd,rs)                           \
         addis   rd,rs,0
 
-#else  /* CONFIG_BOOKE */
+#elif defined(CONFIG_PPC64)
+#define toreal(rd)              /* we can access c000... in real mode */
+#define fromreal(rd)
+
+#define tophys(rd,rs)                           \
+        clrldi  rd,rs,2
+
+#define tovirt(rd,rs)                           \
+        rotldi  rd,rs,16;                       \
+        ori     rd,rd,((KERNELBASE>>48)&0xFFFF);\
+        rotldi  rd,rd,48
+#else
 /*
  * On APUS (Amiga PowerPC cpu upgrade board), we don't know the
  * physical base address of RAM at compile time.
  */
+#define toreal(rd)      tophys(rd,rd)
+#define fromreal(rd)    tovirt(rd,rd)
+
 #define tophys(rd,rs)                           \
 0:      addis   rd,rs,-KERNELBASE@h;            \
         .section ".vtop_fixup","aw";            \
@@ -146,22 +324,11 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
         .align  1;                              \
         .long   0b;                             \
         .previous
-#endif  /* CONFIG_BOOKE */
+#endif
 
-/*
- * On 64-bit cpus, we use the rfid instruction instead of rfi, but
- * we then have to make sure we preserve the top 32 bits except for
- * the 64-bit mode bit, which we clear.
- */
-#ifdef CONFIG_PPC64BRIDGE
-#define FIX_SRR1(ra, rb)        \
-        mr      rb,ra;          \
-        mfmsr   ra;             \
-        clrldi  ra,ra,1;                /* turn off 64-bit mode */ \
-        rldimi  ra,rb,0,32
-#define RFI             .long   0x4c000024      /* rfid instruction */
-#define MTMSRD(r)       .long   (0x7c000164 + ((r) << 21))      /* mtmsrd */
-#define CLR_TOP32(r)    rlwinm  (r),(r),0,0,31  /* clear top 32 bits */
+#ifdef CONFIG_PPC64
+#define RFI             rfid
+#define MTMSRD(r)       mtmsrd  r
 
 #else
 #define FIX_SRR1(ra, rb)
@@ -172,24 +339,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #endif
 #define MTMSRD(r)       mtmsr   r
 #define CLR_TOP32(r)
-#endif /* CONFIG_PPC64BRIDGE */
-
-#define RFCI            .long 0x4c000066        /* rfci instruction */
-#define RFDI            .long 0x4c00004e        /* rfdi instruction */
-#define RFMCI           .long 0x4c00004c        /* rfmci instruction */
-
-#ifdef CONFIG_IBM405_ERR77
-#define PPC405_ERR77(ra,rb)     dcbt    ra, rb;
-#define PPC405_ERR77_SYNC       sync;
-#else
-#define PPC405_ERR77(ra,rb)
-#define PPC405_ERR77_SYNC
-#endif
-
-#ifdef CONFIG_IBM440EP_ERR42
-#define PPC440EP_ERR42 isync
-#else
-#define PPC440EP_ERR42
 #endif
 
 /* The boring bits... */
@@ -277,6 +426,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #define fr30    30
 #define fr31    31
 
+/* AltiVec Registers (VPRs) */
+
 #define vr0     0
 #define vr1     1
 #define vr2     2
@@ -310,6 +461,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #define vr30    30
 #define vr31    31
 
+/* SPE Registers (EVPRs) */
+
 #define evr0    0
 #define evr1    1
 #define evr2    2
@@ -348,3 +501,11 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #define N_RSYM  64
 #define N_SLINE 68
 #define N_SO    100
+
+#define ASM_CONST(x) x
+#else
+  #define __ASM_CONST(x) x##UL
+  #define ASM_CONST(x) __ASM_CONST(x)
+#endif /*  __ASSEMBLY__ */
+
+#endif /* _ASM_POWERPC_PPC_ASM_H */
diff --git a/include/asm-ppc/processor.h b/include/asm-powerpc/processor.h
index b05b5d9cae20..eee954a001fd 100644
--- a/include/asm-ppc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -1,21 +1,28 @@
-#ifdef __KERNEL__
-#ifndef __ASM_PPC_PROCESSOR_H
-#define __ASM_PPC_PROCESSOR_H
+#ifndef _ASM_POWERPC_PROCESSOR_H
+#define _ASM_POWERPC_PROCESSOR_H
 
 /*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
+ * Copyright (C) 2001 PPC 64 Team, IBM Corp
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
  */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
 
 #include <linux/config.h>
-#include <linux/stringify.h>
+#include <asm/reg.h>
 
+#ifndef __ASSEMBLY__
+#include <linux/compiler.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
-#include <asm/mpc8xx.h>
-#include <asm/reg.h>
+#ifdef CONFIG_PPC64
+#include <asm/systemcfg.h>
+#endif
 
+#ifdef CONFIG_PPC32
+/* 32-bit platform types */
 /* We only need to define a new _MACH_xxx for machines which are part of
  * a configuration which supports more than one type of different machine.
  * This is currently limited to CONFIG_PPC_MULTIPLATFORM and CHRP/PReP/PMac.
@@ -36,20 +43,6 @@
 #define _CHRP_IBM       0x05    /* IBM chrp, the longtrail and longtrail 2 */
 #define _CHRP_Pegasos   0x06    /* Genesi/bplan's Pegasos and Pegasos2 */
 
-#define _GLOBAL(n)\
-        .stabs __stringify(n:F-1),N_FUN,0,0,n;\
-        .globl n;\
-n:
-
-/*
- * this is the minimum allowable io space due to the location
- * of the io areas on prep (first one at 0x80000000) but
- * as soon as I get around to remapping the io areas with the BATs
- * to match the mac we can raise this. -- Cort
- */
-#define TASK_SIZE       (CONFIG_TASK_SIZE)
-
-#ifndef __ASSEMBLY__
 #ifdef CONFIG_PPC_MULTIPLATFORM
 extern int _machine;
 
@@ -67,17 +60,49 @@ extern unsigned char ucBoardRevMaj, ucBoardRevMin;
 #else
 #define _machine 0
 #endif /* CONFIG_PPC_MULTIPLATFORM */
+#endif /* CONFIG_PPC32 */
+
+#ifdef CONFIG_PPC64
+/* Platforms supported by PPC64 */
+#define PLATFORM_PSERIES      0x0100
+#define PLATFORM_PSERIES_LPAR 0x0101
+#define PLATFORM_ISERIES_LPAR 0x0201
+#define PLATFORM_LPAR         0x0001
+#define PLATFORM_POWERMAC     0x0400
+#define PLATFORM_MAPLE        0x0500
+#define PLATFORM_BPA          0x1000
+
+/* Compatibility with drivers coming from PPC32 world */
+#define _machine        (systemcfg->platform)
+#define _MACH_Pmac      PLATFORM_POWERMAC
+#endif
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ __label__ _l; _l: &&_l;})
+
+/* Macros for adjusting thread priority (hardware multi-threading) */
+#define HMT_very_low()   asm volatile("or 31,31,31   # very low priority")
+#define HMT_low()        asm volatile("or 1,1,1      # low priority")
+#define HMT_medium_low() asm volatile("or 6,6,6      # medium low priority")
+#define HMT_medium()     asm volatile("or 2,2,2      # medium priority")
+#define HMT_medium_high() asm volatile("or 5,5,5      # medium high priority")
+#define HMT_high()       asm volatile("or 3,3,3      # high priority")
+
+#ifdef __KERNEL__
+
+extern int have_of;
 
 struct task_struct;
-void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp);
+void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp);
 void release_thread(struct task_struct *);
 
 /* Prepare to copy thread state - unlazy all lazy status */
 extern void prepare_to_copy(struct task_struct *tsk);
 
-/*
- * Create a new kernel thread.
- */
+/* Create a new kernel thread. */
 extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
 
 /* Lazy FPU handling on uni-processor */
@@ -85,10 +110,37 @@ extern struct task_struct *last_task_used_math;
 extern struct task_struct *last_task_used_altivec;
 extern struct task_struct *last_task_used_spe;
 
+#ifdef CONFIG_PPC32
+#define TASK_SIZE       (CONFIG_TASK_SIZE)
+
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
 #define TASK_UNMAPPED_BASE      (TASK_SIZE / 8 * 3)
+#endif
+
+#ifdef CONFIG_PPC64
+/* 64-bit user address space is 44-bits (16TB user VM) */
+#define TASK_SIZE_USER64 (0x0000100000000000UL)
+
+/* 
+ * 32-bit user address space is 4GB - 1 page 
+ * (this 1 page is needed so referencing of 0xFFFFFFFF generates EFAULT
+ */
+#define TASK_SIZE_USER32 (0x0000000100000000UL - (1*PAGE_SIZE))
+
+#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
+                TASK_SIZE_USER32 : TASK_SIZE_USER64)
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE_USER32 (PAGE_ALIGN(TASK_SIZE_USER32 / 4))
+#define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(TASK_SIZE_USER64 / 4))
+
+#define TASK_UNMAPPED_BASE ((test_thread_flag(TIF_32BIT)) ? \
+                TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 )
+#endif
 
 typedef struct {
         unsigned long seg;
@@ -96,18 +148,32 @@ typedef struct {
 
 struct thread_struct {
         unsigned long   ksp;            /* Kernel stack pointer */
+#ifdef CONFIG_PPC64
+        unsigned long   ksp_vsid;
+#endif
         struct pt_regs  *regs;          /* Pointer to saved register state */
         mm_segment_t    fs;             /* for get_fs() validation */
+#ifdef CONFIG_PPC32
         void            *pgdir;         /* root of page-table tree */
-        int             fpexc_mode;     /* floating-point exception mode */
         signed long     last_syscall;
+#endif
 #if defined(CONFIG_4xx) || defined (CONFIG_BOOKE)
         unsigned long   dbcr0;          /* debug control register values */
         unsigned long   dbcr1;
 #endif
         double          fpr[32];        /* Complete floating point set */
-        unsigned long   fpscr_pad;      /* fpr ... fpscr must be contiguous */
-        unsigned long   fpscr;          /* Floating point status */
+        struct {                        /* fpr ... fpscr must be contiguous */
+
+                unsigned int pad;
+                unsigned int val;       /* Floating point status */
+        } fpscr;
+        int             fpexc_mode;     /* floating-point exception mode */
+#ifdef CONFIG_PPC64
+        unsigned long   start_tb;       /* Start purr when proc switched in */
+        unsigned long   accum_tb;       /* Total accumilated purr for process */
+        unsigned long   vdso_base;      /* base of the vDSO library */
+#endif
+        unsigned long   dabr;           /* Data address breakpoint register */
 #ifdef CONFIG_ALTIVEC
         /* Complete AltiVec register set */
         vector128       vr[32] __attribute((aligned(16)));
@@ -128,51 +194,58 @@ struct thread_struct {
 
 #define INIT_SP         (sizeof(init_stack) + (unsigned long) &init_stack)
 
+
+#ifdef CONFIG_PPC32
 #define INIT_THREAD { \
         .ksp = INIT_SP, \
         .fs = KERNEL_DS, \
         .pgdir = swapper_pg_dir, \
         .fpexc_mode = MSR_FE0 | MSR_FE1, \
 }
+#else
+#define INIT_THREAD  { \
+        .ksp = INIT_SP, \
+        .regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
+        .fs = KERNEL_DS, \
+        .fpr = {0}, \
+        .fpscr = { .val = 0, }, \
+        .fpexc_mode = MSR_FE0|MSR_FE1, \
+}
+#endif
 
 /*
  * Return saved PC of a blocked thread. For now, this is the "user" PC
  */
-#define thread_saved_pc(tsk)    \
-        ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
+#define thread_saved_pc(tsk)    \
+        ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
 
 unsigned long get_wchan(struct task_struct *p);
 
-#define KSTK_EIP(tsk)   ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
-#define KSTK_ESP(tsk)   ((tsk)->thread.regs? (tsk)->thread.regs->gpr[1]: 0)
+#define KSTK_EIP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
+#define KSTK_ESP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->gpr[1]: 0)
 
 /* Get/set floating-point exception mode */
-#define GET_FPEXC_CTL(tsk, adr) get_fpexc_mode((tsk), (adr))
-#define SET_FPEXC_CTL(tsk, val) set_fpexc_mode((tsk), (val))
+#define GET_FPEXC_CTL(tsk, adr) get_fpexc_mode((tsk), (adr))
+#define SET_FPEXC_CTL(tsk, val) set_fpexc_mode((tsk), (val))
 
 extern int get_fpexc_mode(struct task_struct *tsk, unsigned long adr);
 extern int set_fpexc_mode(struct task_struct *tsk, unsigned int val);
 
-static inline unsigned int __unpack_fe01(unsigned int msr_bits)
+static inline unsigned int __unpack_fe01(unsigned long msr_bits)
 {
         return ((msr_bits & MSR_FE0) >> 10) | ((msr_bits & MSR_FE1) >> 8);
 }
 
-static inline unsigned int __pack_fe01(unsigned int fpmode)
+static inline unsigned long __pack_fe01(unsigned int fpmode)
 {
         return ((fpmode << 10) & MSR_FE0) | ((fpmode << 8) & MSR_FE1);
 }
 
-/* in process.c - for early bootup debug -- Cort */
-int ll_printk(const char *, ...);
-void ll_puts(const char *);
-
-/* In misc.c */
-void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
-
-#define have_of (_machine == _MACH_chrp || _machine == _MACH_Pmac)
-
+#ifdef CONFIG_PPC64
+#define cpu_relax()     do { HMT_low(); HMT_medium(); barrier(); } while (0)
+#else
 #define cpu_relax()     barrier()
+#endif
 
 /*
  * Prefetch macros.
@@ -181,21 +254,28 @@ void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
 #define ARCH_HAS_PREFETCHW
 #define ARCH_HAS_SPINLOCK_PREFETCH
 
-extern inline void prefetch(const void *x)
+static inline void prefetch(const void *x)
 {
-         __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x));
+        if (unlikely(!x))
+                return;
+
+        __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x));
 }
 
-extern inline void prefetchw(const void *x)
+static inline void prefetchw(const void *x)
 {
-         __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x));
+        if (unlikely(!x))
+                return;
+
+        __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x));
 }
 
 #define spin_lock_prefetch(x)   prefetchw(x)
 
-extern int emulate_altivec(struct pt_regs *regs);
-
-#endif /* !__ASSEMBLY__ */
+#ifdef CONFIG_PPC64
+#define HAVE_ARCH_PICK_MMAP_LAYOUT
+#endif
 
-#endif /* __ASM_PPC_PROCESSOR_H */
 #endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_POWERPC_PROCESSOR_H */
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
new file mode 100644
index 000000000000..3a0104fa0462
--- /dev/null
+++ b/include/asm-powerpc/prom.h
@@ -0,0 +1,219 @@
+#ifndef _POWERPC_PROM_H
+#define _POWERPC_PROM_H
+#ifdef __KERNEL__
+
+/*
+ * Definitions for talking to the Open Firmware PROM on
+ * Power Macintosh computers.
+ *
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <asm/atomic.h>
+
+/* Definitions used by the flattened device tree */
+#define OF_DT_HEADER            0xd00dfeed      /* marker */
+#define OF_DT_BEGIN_NODE        0x1             /* Start of node, full name */
+#define OF_DT_END_NODE          0x2             /* End node */
+#define OF_DT_PROP              0x3             /* Property: name off, size,
+                                                 * content */
+#define OF_DT_NOP               0x4             /* nop */
+#define OF_DT_END               0x9
+
+#define OF_DT_VERSION           0x10
+
+/*
+ * This is what gets passed to the kernel by prom_init or kexec
+ *
+ * The dt struct contains the device tree structure, full pathes and
+ * property contents. The dt strings contain a separate block with just
+ * the strings for the property names, and is fully page aligned and
+ * self contained in a page, so that it can be kept around by the kernel,
+ * each property name appears only once in this page (cheap compression)
+ *
+ * the mem_rsvmap contains a map of reserved ranges of physical memory,
+ * passing it here instead of in the device-tree itself greatly simplifies
+ * the job of everybody. It's just a list of u64 pairs (base/size) that
+ * ends when size is 0
+ */
+struct boot_param_header
+{
+        u32     magic;                  /* magic word OF_DT_HEADER */
+        u32     totalsize;              /* total size of DT block */
+        u32     off_dt_struct;          /* offset to structure */
+        u32     off_dt_strings;         /* offset to strings */
+        u32     off_mem_rsvmap;         /* offset to memory reserve map */
+        u32     version;                /* format version */
+        u32     last_comp_version;      /* last compatible version */
+        /* version 2 fields below */
+        u32     boot_cpuid_phys;        /* Physical CPU id we're booting on */
+        /* version 3 fields below */
+        u32     dt_strings_size;        /* size of the DT strings block */
+};
+
+
+
+typedef u32 phandle;
+typedef u32 ihandle;
+
+struct address_range {
+        unsigned long space;
+        unsigned long address;
+        unsigned long size;
+};
+
+struct interrupt_info {
+        int     line;
+        int     sense;          /* +ve/-ve logic, edge or level, etc. */
+};
+
+struct pci_address {
+        u32 a_hi;
+        u32 a_mid;
+        u32 a_lo;
+};
+
+struct isa_address {
+        u32 a_hi;
+        u32 a_lo;
+};
+
+struct isa_range {
+        struct isa_address isa_addr;
+        struct pci_address pci_addr;
+        unsigned int size;
+};
+
+struct reg_property {
+        unsigned long address;
+        unsigned long size;
+};
+
+struct reg_property32 {
+        unsigned int address;
+        unsigned int size;
+};
+
+struct reg_property64 {
+        u64 address;
+        u64 size;
+};
+
+struct property {
+        char    *name;
+        int     length;
+        unsigned char *value;
+        struct property *next;
+};
+
+struct device_node {
+        char    *name;
+        char    *type;
+        phandle node;
+        phandle linux_phandle;
+        int     n_addrs;
+        struct  address_range *addrs;
+        int     n_intrs;
+        struct  interrupt_info *intrs;
+        char    *full_name;
+
+        struct  property *properties;
+        struct  device_node *parent;
+        struct  device_node *child;
+        struct  device_node *sibling;
+        struct  device_node *next;      /* next device of same type */
+        struct  device_node *allnext;   /* next in list of all nodes */
+        struct  proc_dir_entry *pde;    /* this node's proc directory */
+        struct  kref kref;
+        unsigned long _flags;
+        void    *data;
+};
+
+extern struct device_node *of_chosen;
+
+/* flag descriptions */
+#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
+
+#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
+#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
+
+#define HAVE_ARCH_DEVTREE_FIXUPS
+
+static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
+{
+        dn->pde = de;
+}
+
+
+/* OBSOLETE: Old style node lookup */
+extern struct device_node *find_devices(const char *name);
+extern struct device_node *find_type_devices(const char *type);
+extern struct device_node *find_path_device(const char *path);
+extern struct device_node *find_compatible_devices(const char *type,
+                                                   const char *compat);
+extern struct device_node *find_all_nodes(void);
+
+/* New style node lookup */
+extern struct device_node *of_find_node_by_name(struct device_node *from,
+        const char *name);
+extern struct device_node *of_find_node_by_type(struct device_node *from,
+        const char *type);
+extern struct device_node *of_find_compatible_node(struct device_node *from,
+        const char *type, const char *compat);
+extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_node_by_phandle(phandle handle);
+extern struct device_node *of_find_all_nodes(struct device_node *prev);
+extern struct device_node *of_get_parent(const struct device_node *node);
+extern struct device_node *of_get_next_child(const struct device_node *node,
+                                             struct device_node *prev);
+extern struct device_node *of_node_get(struct device_node *node);
+extern void of_node_put(struct device_node *node);
+
+/* For updating the device tree at runtime */
+extern void of_attach_node(struct device_node *);
+extern void of_detach_node(const struct device_node *);
+
+/* Other Prototypes */
+extern void finish_device_tree(void);
+extern void unflatten_device_tree(void);
+extern void early_init_devtree(void *);
+extern int device_is_compatible(struct device_node *device, const char *);
+extern int machine_is_compatible(const char *compat);
+extern unsigned char *get_property(struct device_node *node, const char *name,
+                                   int *lenp);
+extern void print_properties(struct device_node *node);
+extern int prom_n_addr_cells(struct device_node* np);
+extern int prom_n_size_cells(struct device_node* np);
+extern int prom_n_intr_cells(struct device_node* np);
+extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
+extern void prom_add_property(struct device_node* np, struct property* prop);
+
+#ifdef CONFIG_PPC32
+/*
+ * PCI <-> OF matching functions
+ * (XXX should these be here?)
+ */
+struct pci_bus;
+struct pci_dev;
+extern int pci_device_from_OF_node(struct device_node *node,
+                                   u8* bus, u8* devfn);
+extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
+extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
+extern void pci_create_OF_bus_map(void);
+#endif
+
+extern struct resource *request_OF_resource(struct device_node* node,
+                                int index, const char* name_postfix);
+extern int release_OF_resource(struct device_node* node, int index);
+
+#endif /* __KERNEL__ */
+#endif /* _POWERPC_PROM_H */
diff --git a/include/asm-ppc/reg.h b/include/asm-powerpc/reg.h
index 73c33e3ef9c6..da848412f11b 100644
--- a/include/asm-ppc/reg.h
+++ b/include/asm-powerpc/reg.h
@@ -6,53 +6,107 @@
  * Implementations of the PowerPC Architecture (a.k.a. Green Book) here.
  */
 
+#ifndef _ASM_POWERPC_REG_H
+#define _ASM_POWERPC_REG_H
 #ifdef __KERNEL__
-#ifndef __ASM_PPC_REGS_H__
-#define __ASM_PPC_REGS_H__
 
 #include <linux/stringify.h>
+#include <asm/cputable.h>
 
 /* Pickup Book E specific registers. */
 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
 #include <asm/reg_booke.h>
 #endif
 
-/* Machine State Register (MSR) Fields */
-#define MSR_SF          (1<<63)
-#define MSR_ISF         (1<<61)
-#define MSR_VEC         (1<<25)         /* Enable AltiVec */
-#define MSR_POW         (1<<18)         /* Enable Power Management */
-#define MSR_WE          (1<<18)         /* Wait State Enable */
-#define MSR_TGPR        (1<<17)         /* TLB Update registers in use */
-#define MSR_CE          (1<<17)         /* Critical Interrupt Enable */
-#define MSR_ILE         (1<<16)         /* Interrupt Little Endian */
-#define MSR_EE          (1<<15)         /* External Interrupt Enable */
-#define MSR_PR          (1<<14)         /* Problem State / Privilege Level */
-#define MSR_FP          (1<<13)         /* Floating Point enable */
-#define MSR_ME          (1<<12)         /* Machine Check Enable */
-#define MSR_FE0         (1<<11)         /* Floating Exception mode 0 */
-#define MSR_SE          (1<<10)         /* Single Step */
-#define MSR_BE          (1<<9)          /* Branch Trace */
-#define MSR_DE          (1<<9)          /* Debug Exception Enable */
-#define MSR_FE1         (1<<8)          /* Floating Exception mode 1 */
-#define MSR_IP          (1<<6)          /* Exception prefix 0x000/0xFFF */
-#define MSR_IR          (1<<5)          /* Instruction Relocate */
-#define MSR_DR          (1<<4)          /* Data Relocate */
-#define MSR_PE          (1<<3)          /* Protection Enable */
-#define MSR_PX          (1<<2)          /* Protection Exclusive Mode */
-#define MSR_RI          (1<<1)          /* Recoverable Exception */
-#define MSR_LE          (1<<0)          /* Little Endian */
+#define MSR_SF_LG       63              /* Enable 64 bit mode */
+#define MSR_ISF_LG      61              /* Interrupt 64b mode valid on 630 */
+#define MSR_HV_LG       60              /* Hypervisor state */
+#define MSR_VEC_LG      25              /* Enable AltiVec */
+#define MSR_POW_LG      18              /* Enable Power Management */
+#define MSR_WE_LG       18              /* Wait State Enable */
+#define MSR_TGPR_LG     17              /* TLB Update registers in use */
+#define MSR_CE_LG       17              /* Critical Interrupt Enable */
+#define MSR_ILE_LG      16              /* Interrupt Little Endian */
+#define MSR_EE_LG       15              /* External Interrupt Enable */
+#define MSR_PR_LG       14              /* Problem State / Privilege Level */
+#define MSR_FP_LG       13              /* Floating Point enable */
+#define MSR_ME_LG       12              /* Machine Check Enable */
+#define MSR_FE0_LG      11              /* Floating Exception mode 0 */
+#define MSR_SE_LG       10              /* Single Step */
+#define MSR_BE_LG       9               /* Branch Trace */
+#define MSR_DE_LG       9               /* Debug Exception Enable */
+#define MSR_FE1_LG      8               /* Floating Exception mode 1 */
+#define MSR_IP_LG       6               /* Exception prefix 0x000/0xFFF */
+#define MSR_IR_LG       5               /* Instruction Relocate */
+#define MSR_DR_LG       4               /* Data Relocate */
+#define MSR_PE_LG       3               /* Protection Enable */
+#define MSR_PX_LG       2               /* Protection Exclusive Mode */
+#define MSR_PMM_LG      2               /* Performance monitor */
+#define MSR_RI_LG       1               /* Recoverable Exception */
+#define MSR_LE_LG       0               /* Little Endian */
 
+#ifdef __ASSEMBLY__
+#define __MASK(X)       (1<<(X))
+#else
+#define __MASK(X)       (1UL<<(X))
+#endif
+
+#ifdef CONFIG_PPC64
+#define MSR_SF          __MASK(MSR_SF_LG)       /* Enable 64 bit mode */
+#define MSR_ISF         __MASK(MSR_ISF_LG)      /* Interrupt 64b mode valid on 630 */
+#define MSR_HV          __MASK(MSR_HV_LG)       /* Hypervisor state */
+#else
+/* so tests for these bits fail on 32-bit */
+#define MSR_SF          0
+#define MSR_ISF         0
+#define MSR_HV          0
+#endif
+
+#define MSR_VEC         __MASK(MSR_VEC_LG)      /* Enable AltiVec */
+#define MSR_POW         __MASK(MSR_POW_LG)      /* Enable Power Management */
+#define MSR_WE          __MASK(MSR_WE_LG)       /* Wait State Enable */
+#define MSR_TGPR        __MASK(MSR_TGPR_LG)     /* TLB Update registers in use */
+#define MSR_CE          __MASK(MSR_CE_LG)       /* Critical Interrupt Enable */
+#define MSR_ILE         __MASK(MSR_ILE_LG)      /* Interrupt Little Endian */
+#define MSR_EE          __MASK(MSR_EE_LG)       /* External Interrupt Enable */
+#define MSR_PR          __MASK(MSR_PR_LG)       /* Problem State / Privilege Level */
+#define MSR_FP          __MASK(MSR_FP_LG)       /* Floating Point enable */
+#define MSR_ME          __MASK(MSR_ME_LG)       /* Machine Check Enable */
+#define MSR_FE0         __MASK(MSR_FE0_LG)      /* Floating Exception mode 0 */
+#define MSR_SE          __MASK(MSR_SE_LG)       /* Single Step */
+#define MSR_BE          __MASK(MSR_BE_LG)       /* Branch Trace */
+#define MSR_DE          __MASK(MSR_DE_LG)       /* Debug Exception Enable */
+#define MSR_FE1         __MASK(MSR_FE1_LG)      /* Floating Exception mode 1 */
+#define MSR_IP          __MASK(MSR_IP_LG)       /* Exception prefix 0x000/0xFFF */
+#define MSR_IR          __MASK(MSR_IR_LG)       /* Instruction Relocate */
+#define MSR_DR          __MASK(MSR_DR_LG)       /* Data Relocate */
+#define MSR_PE          __MASK(MSR_PE_LG)       /* Protection Enable */
+#define MSR_PX          __MASK(MSR_PX_LG)       /* Protection Exclusive Mode */
+#ifndef MSR_PMM
+#define MSR_PMM         __MASK(MSR_PMM_LG)      /* Performance monitor */
+#endif
+#define MSR_RI          __MASK(MSR_RI_LG)       /* Recoverable Exception */
+#define MSR_LE          __MASK(MSR_LE_LG)       /* Little Endian */
+
+#ifdef CONFIG_PPC64
+#define MSR_            MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF
+#define MSR_KERNEL      MSR_ | MSR_SF | MSR_HV
+
+#define MSR_USER32      MSR_ | MSR_PR | MSR_EE
+#define MSR_USER64      MSR_USER32 | MSR_SF
+
+#else /* 32-bit */
 /* Default MSR for kernel mode. */
+#ifndef MSR_KERNEL      /* reg_booke.h also defines this */
 #ifdef CONFIG_APUS_FAST_EXCEPT
 #define MSR_KERNEL      (MSR_ME|MSR_IP|MSR_RI|MSR_IR|MSR_DR)
-#endif
-
-#ifndef MSR_KERNEL
+#else
 #define MSR_KERNEL      (MSR_ME|MSR_RI|MSR_IR|MSR_DR)
 #endif
+#endif
 
 #define MSR_USER        (MSR_KERNEL|MSR_PR|MSR_EE)
+#endif
 
 /* Floating Point Status and Control Register (FPSCR) Fields */
 #define FPSCR_FX        0x80000000      /* FPU exception summary */
@@ -60,7 +114,7 @@
 #define FPSCR_VX        0x20000000      /* Invalid operation summary */
 #define FPSCR_OX        0x10000000      /* Overflow exception summary */
 #define FPSCR_UX        0x08000000      /* Underflow exception summary */
-#define FPSCR_ZX        0x04000000      /* Zero-devide exception summary */
+#define FPSCR_ZX        0x04000000      /* Zero-divide exception summary */
 #define FPSCR_XX        0x02000000      /* Inexact exception summary */
 #define FPSCR_VXSNAN    0x01000000      /* Invalid op for SNaN */
 #define FPSCR_VXISI     0x00800000      /* Invalid op for Inv - Inv */
@@ -85,8 +139,18 @@
 
 /* Special Purpose Registers (SPRNs)*/
 #define SPRN_CTR        0x009   /* Count Register */
+#define SPRN_CTRLF      0x088
+#define SPRN_CTRLT      0x098
+#define   CTRL_RUNLATCH 0x1
 #define SPRN_DABR       0x3F5   /* Data Address Breakpoint Register */
+#define   DABR_TRANSLATION      (1UL << 2)
 #define SPRN_DAR        0x013   /* Data Address Register */
+#define SPRN_DSISR      0x012   /* Data Storage Interrupt Status Register */
+#define   DSISR_NOHPTE          0x40000000      /* no translation found */
+#define   DSISR_PROTFAULT       0x08000000      /* protection fault */
+#define   DSISR_ISSTORE         0x02000000      /* access was a store */
+#define   DSISR_DABRMATCH       0x00400000      /* hit data breakpoint */
+#define   DSISR_NOSEGMENT       0x00200000      /* STAB/SLB miss */
 #define SPRN_TBRL       0x10C   /* Time Base Read Lower Register (user, R/O) */
 #define SPRN_TBRU       0x10D   /* Time Base Read Upper Register (user, R/O) */
 #define SPRN_TBWL       0x11C   /* Time Base Lower Register (super, R/W) */
@@ -131,7 +195,6 @@
 #define DER_EBRKE       0x00000002      /* External Breakpoint Interrupt */
 #define DER_DPIE        0x00000001      /* Dev. Port Nonmaskable Request */
 #define SPRN_DMISS      0x3D0           /* Data TLB Miss Register */
-#define SPRN_DSISR      0x012   /* Data Storage Interrupt Status Register */
 #define SPRN_EAR        0x11A           /* External Address Register */
 #define SPRN_HASH1      0x3D2           /* Primary Hash Address Register */
 #define SPRN_HASH2      0x3D3           /* Secondary Hash Address Resgister */
@@ -187,6 +250,16 @@
 #define SPRN_IABR       0x3F2   /* Instruction Address Breakpoint Register */
 #define SPRN_HID4       0x3F4           /* 970 HID4 */
 #define SPRN_HID5       0x3F6           /* 970 HID5 */
+#define SPRN_HID6       0x3F9   /* BE HID 6 */
+#define   HID6_LB       (0x0F<<12) /* Concurrent Large Page Modes */
+#define   HID6_DLP      (1<<20) /* Disable all large page modes (4K only) */
+#define SPRN_TSCR       0x399   /* Thread switch control on BE */
+#define SPRN_TTR        0x39A   /* Thread switch timeout on BE */
+#define   TSCR_DEC_ENABLE       0x200000 /* Decrementer Interrupt */
+#define   TSCR_EE_ENABLE        0x100000 /* External Interrupt */
+#define   TSCR_EE_BOOST         0x080000 /* External Interrupt Boost */
+#define SPRN_TSC        0x3FD   /* Thread switch control on others */
+#define SPRN_TST        0x3FC   /* Thread switch timeout on others */
 #if !defined(SPRN_IAC1) && !defined(SPRN_IAC2)
 #define SPRN_IAC1       0x3F4           /* Instruction Address Compare 1 */
 #define SPRN_IAC2       0x3F5           /* Instruction Address Compare 2 */
@@ -270,22 +343,18 @@
 #define L3CR_L3DO               0x00000040      /* L3 data only mode */
 #define L3CR_PMEN               0x00000004      /* L3 private memory enable */
 #define L3CR_PMSIZ              0x00000001      /* L3 private memory size */
+
 #define SPRN_MSSCR0     0x3f6   /* Memory Subsystem Control Register 0 */
 #define SPRN_MSSSR0     0x3f7   /* Memory Subsystem Status Register 1 */
 #define SPRN_LDSTCR     0x3f8   /* Load/Store control register */
 #define SPRN_LDSTDB     0x3f4   /* */
 #define SPRN_LR         0x008   /* Link Register */
-#define SPRN_MMCR0      0x3B8   /* Monitor Mode Control Register 0 */
-#define SPRN_MMCR1      0x3BC   /* Monitor Mode Control Register 1 */
 #ifndef SPRN_PIR
 #define SPRN_PIR        0x3FF   /* Processor Identification Register */
 #endif
-#define SPRN_PMC1       0x3B9   /* Performance Counter Register 1 */
-#define SPRN_PMC2       0x3BA   /* Performance Counter Register 2 */
-#define SPRN_PMC3       0x3BD   /* Performance Counter Register 3 */
-#define SPRN_PMC4       0x3BE   /* Performance Counter Register 4 */
 #define SPRN_PTEHI      0x3D5   /* 981 7450 PTE HI word (S/W TLB load) */
 #define SPRN_PTELO      0x3D6   /* 982 7450 PTE LO word (S/W TLB load) */
+#define SPRN_PURR       0x135   /* Processor Utilization of Resources Reg */
 #define SPRN_PVR        0x11F   /* Processor Version Register */
 #define SPRN_RPA        0x3D6   /* Required Physical Address Register */
 #define SPRN_SDA        0x3BF   /* Sampled Data Address Register */
@@ -327,6 +396,52 @@
 #define SPRN_VRSAVE     0x100   /* Vector Register Save Register */
 #define SPRN_XER        0x001   /* Fixed Point Exception Register */
 
+/* Performance monitor SPRs */
+#ifdef CONFIG_PPC64
+#define SPRN_MMCR0      795
+#define   MMCR0_FC      0x80000000UL /* freeze counters */
+#define   MMCR0_FCS     0x40000000UL /* freeze in supervisor state */
+#define   MMCR0_KERNEL_DISABLE MMCR0_FCS
+#define   MMCR0_FCP     0x20000000UL /* freeze in problem state */
+#define   MMCR0_PROBLEM_DISABLE MMCR0_FCP
+#define   MMCR0_FCM1    0x10000000UL /* freeze counters while MSR mark = 1 */
+#define   MMCR0_FCM0    0x08000000UL /* freeze counters while MSR mark = 0 */
+#define   MMCR0_PMXE    0x04000000UL /* performance monitor exception enable */
+#define   MMCR0_FCECE   0x02000000UL /* freeze ctrs on enabled cond or event */
+#define   MMCR0_TBEE    0x00400000UL /* time base exception enable */
+#define   MMCR0_PMC1CE  0x00008000UL /* PMC1 count enable*/
+#define   MMCR0_PMCjCE  0x00004000UL /* PMCj count enable*/
+#define   MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */
+#define   MMCR0_PMAO    0x00000080UL /* performance monitor alert has occurred, set to 0 after handling exception */
+#define   MMCR0_SHRFC   0x00000040UL /* SHRre freeze conditions between threads */
+#define   MMCR0_FCTI    0x00000008UL /* freeze counters in tags inactive mode */
+#define   MMCR0_FCTA    0x00000004UL /* freeze counters in tags active mode */
+#define   MMCR0_FCWAIT  0x00000002UL /* freeze counter in WAIT state */
+#define   MMCR0_FCHV    0x00000001UL /* freeze conditions in hypervisor mode */
+#define SPRN_MMCR1      798
+#define SPRN_MMCRA      0x312
+#define   MMCRA_SIHV    0x10000000UL /* state of MSR HV when SIAR set */
+#define   MMCRA_SIPR    0x08000000UL /* state of MSR PR when SIAR set */
+#define   MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
+#define SPRN_PMC1       787
+#define SPRN_PMC2       788
+#define SPRN_PMC3       789
+#define SPRN_PMC4       790
+#define SPRN_PMC5       791
+#define SPRN_PMC6       792
+#define SPRN_PMC7       793
+#define SPRN_PMC8       794
+#define SPRN_SIAR       780
+#define SPRN_SDAR       781
+
+#else /* 32-bit */
+#define SPRN_MMCR0      0x3B8   /* Monitor Mode Control Register 0 */
+#define SPRN_MMCR1      0x3BC   /* Monitor Mode Control Register 1 */
+#define SPRN_PMC1       0x3B9   /* Performance Counter Register 1 */
+#define SPRN_PMC2       0x3BA   /* Performance Counter Register 2 */
+#define SPRN_PMC3       0x3BD   /* Performance Counter Register 3 */
+#define SPRN_PMC4       0x3BE   /* Performance Counter Register 4 */
+
 /* Bit definitions for MMCR0 and PMC1 / PMC2. */
 #define MMCR0_PMC1_CYCLES       (1 << 7)
 #define MMCR0_PMC1_ICACHEMISS   (5 << 7)
@@ -336,14 +451,15 @@
 #define MMCR0_PMC2_ITLB         0x7
 #define MMCR0_PMC2_LOADMISSTIME 0x5
 #define MMCR0_PMXE      (1 << 26)
-
-/* Processor Version Register */
+#endif
 
 /* Processor Version Register (PVR) field extraction */
 
 #define PVR_VER(pvr)    (((pvr) >>  16) & 0xFFFF)       /* Version field */
 #define PVR_REV(pvr)    (((pvr) >>   0) & 0xFFFF)       /* Revison field */
 
+#define __is_processor(pv)      (PVR_VER(mfspr(SPRN_PVR)) == (pv))
+
 /*
  * IBM has further subdivided the standard PowerPC 16-bit version and
  * revision subfields of the PVR for the PowerPC 403s into the following:
@@ -399,42 +515,99 @@
 #define PVR_8245        0x80811014
 #define PVR_8260        PVR_8240
 
-#if 0
-/* Segment Registers */
-#define SR0     0
-#define SR1     1
-#define SR2     2
-#define SR3     3
-#define SR4     4
-#define SR5     5
-#define SR6     6
-#define SR7     7
-#define SR8     8
-#define SR9     9
-#define SR10    10
-#define SR11    11
-#define SR12    12
-#define SR13    13
-#define SR14    14
-#define SR15    15
-#endif
+/* 64-bit processors */
+/* XXX the prefix should be PVR_, we'll do a global sweep to fix it one day */
+#define PV_NORTHSTAR    0x0033
+#define PV_PULSAR       0x0034
+#define PV_POWER4       0x0035
+#define PV_ICESTAR      0x0036
+#define PV_SSTAR        0x0037
+#define PV_POWER4p      0x0038
+#define PV_970          0x0039
+#define PV_POWER5       0x003A
+#define PV_POWER5p      0x003B
+#define PV_970FX        0x003C
+#define PV_630          0x0040
+#define PV_630p 0x0041
+#define PV_970MP        0x0044
+#define PV_BE           0x0070
+
+/*
+ * Number of entries in the SLB. If this ever changes we should handle
+ * it with a use a cpu feature fixup.
+ */
+#define SLB_NUM_ENTRIES 64
 
 /* Macros for setting and retrieving special purpose registers */
 #ifndef __ASSEMBLY__
-#define mfmsr()         ({unsigned int rval; \
+#define mfmsr()         ({unsigned long rval; \
                         asm volatile("mfmsr %0" : "=r" (rval)); rval;})
+#ifdef CONFIG_PPC64
+#define __mtmsrd(v, l)  asm volatile("mtmsrd %0," __stringify(l) \
+                                     : : "r" (v))
+#define mtmsrd(v)       __mtmsrd((v), 0)
+#define mtmsr(v)        mtmsrd(v)
+#else
 #define mtmsr(v)        asm volatile("mtmsr %0" : : "r" (v))
+#endif
 
-#define mfspr(rn)       ({unsigned int rval; \
+#define mfspr(rn)       ({unsigned long rval; \
                         asm volatile("mfspr %0," __stringify(rn) \
                                 : "=r" (rval)); rval;})
 #define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))
 
+#define mftb()          ({unsigned long rval;   \
+                        asm volatile("mftb %0" : "=r" (rval)); rval;})
+#define mftbl()         ({unsigned long rval;   \
+                        asm volatile("mftbl %0" : "=r" (rval)); rval;})
+
+#define mttbl(v)        asm volatile("mttbl %0":: "r"(v))
+#define mttbu(v)        asm volatile("mttbu %0":: "r"(v))
+
+#ifdef CONFIG_PPC32
 #define mfsrin(v)       ({unsigned int rval; \
                         asm volatile("mfsrin %0,%1" : "=r" (rval) : "r" (v)); \
                                         rval;})
+#endif
 
 #define proc_trap()     asm volatile("trap")
+
+#ifdef CONFIG_PPC64
+static inline void ppc64_runlatch_on(void)
+{
+        unsigned long ctrl;
+
+        if (cpu_has_feature(CPU_FTR_CTRL)) {
+                ctrl = mfspr(SPRN_CTRLF);
+                ctrl |= CTRL_RUNLATCH;
+                mtspr(SPRN_CTRLT, ctrl);
+        }
+}
+
+static inline void ppc64_runlatch_off(void)
+{
+        unsigned long ctrl;
+
+        if (cpu_has_feature(CPU_FTR_CTRL)) {
+                ctrl = mfspr(SPRN_CTRLF);
+                ctrl &= ~CTRL_RUNLATCH;
+                mtspr(SPRN_CTRLT, ctrl);
+        }
+}
+#endif
+
+#define __get_SP()      ({unsigned long sp; \
+                        asm volatile("mr %0,1": "=r" (sp)); sp;})
+
+#else /* __ASSEMBLY__ */
+
+#define RUNLATCH_ON(REG)                        \
+BEGIN_FTR_SECTION                               \
+        mfspr   (REG),SPRN_CTRLF;               \
+        ori     (REG),(REG),CTRL_RUNLATCH;      \
+        mtspr   SPRN_CTRLT,(REG);               \
+END_FTR_SECTION_IFSET(CPU_FTR_CTRL)
+
 #endif /* __ASSEMBLY__ */
-#endif /* __ASM_PPC_REGS_H__ */
 #endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_REG_H */
diff --git a/include/asm-ppc64/rtas.h b/include/asm-powerpc/rtas.h
index e7d1b5222802..2c050332471d 100644
--- a/include/asm-ppc64/rtas.h
+++ b/include/asm-powerpc/rtas.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_RTAS_H
-#define _PPC64_RTAS_H
+#ifndef _POWERPC_RTAS_H
+#define _POWERPC_RTAS_H
 
 #include <linux/spinlock.h>
 #include <asm/page.h>
@@ -190,7 +190,7 @@ extern void rtas_progress(char *s, unsigned short hex);
 extern void rtas_initialize(void);
 
 struct rtc_time;
-extern void rtas_get_boot_time(struct rtc_time *rtc_time);
+extern unsigned long rtas_get_boot_time(void);
 extern void rtas_get_rtc_time(struct rtc_time *rtc_time);
 extern int rtas_set_rtc_time(struct rtc_time *rtc_time);
 
@@ -246,4 +246,4 @@ extern unsigned long rtas_rmo_buf;
 
 #define GLOBAL_INTERRUPT_QUEUE 9005
 
-#endif /* _PPC64_RTAS_H */
+#endif /* _POWERPC_RTAS_H */
diff --git a/include/asm-powerpc/rtc.h b/include/asm-powerpc/rtc.h
new file mode 100644
index 000000000000..f5802926b6c0
--- /dev/null
+++ b/include/asm-powerpc/rtc.h
@@ -0,0 +1,78 @@
+/*
+ * Real-time clock definitions and interfaces
+ *
+ * Author: Tom Rini <trini@mvista.com>
+ *
+ * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
+ * the terms of the GNU General Public License version 2.  This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Based on:
+ * include/asm-m68k/rtc.h
+ *
+ * Copyright Richard Zidlicky
+ * implementation details for genrtc/q40rtc driver
+ *
+ * And the old drivers/macintosh/rtc.c which was heavily based on:
+ * Linux/SPARC Real Time Clock Driver
+ * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
+ *
+ * With additional work by Paul Mackerras and Franz Sirl.
+ */
+
+#ifndef __ASM_POWERPC_RTC_H__
+#define __ASM_POWERPC_RTC_H__
+
+#ifdef __KERNEL__
+
+#include <linux/rtc.h>
+
+#include <asm/machdep.h>
+#include <asm/time.h>
+
+#define RTC_PIE 0x40            /* periodic interrupt enable */
+#define RTC_AIE 0x20            /* alarm interrupt enable */
+#define RTC_UIE 0x10            /* update-finished interrupt enable */
+
+/* some dummy definitions */
+#define RTC_BATT_BAD 0x100      /* battery bad */
+#define RTC_SQWE 0x08           /* enable square-wave output */
+#define RTC_DM_BINARY 0x04      /* all time/date values are BCD if clear */
+#define RTC_24H 0x02            /* 24 hour mode - else hours bit 7 means pm */
+#define RTC_DST_EN 0x01         /* auto switch DST - works f. USA only */
+
+static inline unsigned int get_rtc_time(struct rtc_time *time)
+{
+        if (ppc_md.get_rtc_time)
+                ppc_md.get_rtc_time(time);
+        return RTC_24H;
+}
+
+/* Set the current date and time in the real time clock. */
+static inline int set_rtc_time(struct rtc_time *time)
+{
+        if (ppc_md.set_rtc_time)
+                return ppc_md.set_rtc_time(time);
+        return -EINVAL;
+}
+
+static inline unsigned int get_rtc_ss(void)
+{
+        struct rtc_time h;
+
+        get_rtc_time(&h);
+        return h.tm_sec;
+}
+
+static inline int get_rtc_pll(struct rtc_pll_info *pll)
+{
+        return -EINVAL;
+}
+static inline int set_rtc_pll(struct rtc_pll_info *pll)
+{
+        return -EINVAL;
+}
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_POWERPC_RTC_H__ */
diff --git a/include/asm-ppc64/rwsem.h b/include/asm-powerpc/rwsem.h
index 7a647fae3765..79bae4933b73 100644
--- a/include/asm-ppc64/rwsem.h
+++ b/include/asm-powerpc/rwsem.h
@@ -1,18 +1,14 @@
+#ifndef _ASM_POWERPC_RWSEM_H
+#define _ASM_POWERPC_RWSEM_H
+
+#ifdef __KERNEL__
+
 /*
  * include/asm-ppc64/rwsem.h: R/W semaphores for PPC using the stuff
  * in lib/rwsem.c.  Adapted largely from include/asm-i386/rwsem.h
  * by Paul Mackerras <paulus@samba.org>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
  */
 
-#ifndef _PPC64_RWSEM_H
-#define _PPC64_RWSEM_H
-
-#ifdef __KERNEL__
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <asm/atomic.h>
@@ -168,5 +164,5 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
         return (sem->count != 0);
 }
 
-#endif /* __KERNEL__ */
-#endif /* _PPC_RWSEM_XADD_H */
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_RWSEM_H */
diff --git a/include/asm-ppc64/scatterlist.h b/include/asm-powerpc/scatterlist.h
index cecce6c6dfbb..8c992d1491d4 100644
--- a/include/asm-ppc64/scatterlist.h
+++ b/include/asm-powerpc/scatterlist.h
@@ -1,6 +1,5 @@
-#ifndef _PPC64_SCATTERLIST_H
-#define _PPC64_SCATTERLIST_H
-
+#ifndef _ASM_POWERPC_SCATTERLIST_H
+#define _ASM_POWERPC_SCATTERLIST_H
 /*
  * Copyright (C) 2001 PPC64 Team, IBM Corp
  *
@@ -10,6 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#ifdef __KERNEL__
 #include <linux/types.h>
 #include <asm/dma.h>
 
@@ -19,13 +19,27 @@ struct scatterlist {
         unsigned int length;
 
         /* For TCE support */
-        u32 dma_address;
+        dma_addr_t dma_address;
         u32 dma_length;
 };
 
+/*
+ * These macros should be used after a dma_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns, or alternatively stop on the first sg_dma_len(sg) which
+ * is 0.
+ */
 #define sg_dma_address(sg)      ((sg)->dma_address)
+#ifdef __powerpc64__
 #define sg_dma_len(sg)          ((sg)->dma_length)
+#else
+#define sg_dma_len(sg)          ((sg)->length)
+#endif
 
+#ifdef __powerpc64__
 #define ISA_DMA_THRESHOLD       (~0UL)
+#endif
 
-#endif /* !(_PPC64_SCATTERLIST_H) */
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_SCATTERLIST_H */
diff --git a/include/asm-ppc64/seccomp.h b/include/asm-powerpc/seccomp.h
index c130c334bda1..1e1cfe12882b 100644
--- a/include/asm-ppc64/seccomp.h
+++ b/include/asm-powerpc/seccomp.h
@@ -1,11 +1,6 @@
-#ifndef _ASM_SECCOMP_H
-
-#include <linux/thread_info.h> /* already defines TIF_32BIT */
-
-#ifndef TIF_32BIT
-#error "unexpected TIF_32BIT on ppc64"
-#endif
+#ifndef _ASM_POWERPC_SECCOMP_H
 
+#include <linux/thread_info.h>
 #include <linux/unistd.h>
 
 #define __NR_seccomp_read __NR_read
@@ -18,4 +13,4 @@
 #define __NR_seccomp_exit_32 __NR_exit
 #define __NR_seccomp_sigreturn_32 __NR_sigreturn
 
-#endif /* _ASM_SECCOMP_H */
+#endif  /* _ASM_POWERPC_SECCOMP_H */
diff --git a/include/asm-ppc64/sections.h b/include/asm-powerpc/sections.h
index 308ca6f5ced2..47be2ac2a925 100644
--- a/include/asm-ppc64/sections.h
+++ b/include/asm-powerpc/sections.h
@@ -1,22 +1,11 @@
-#ifndef _PPC64_SECTIONS_H
-#define _PPC64_SECTIONS_H
-
-extern char _end[];
+#ifndef _ASM_POWERPC_SECTIONS_H
+#define _ASM_POWERPC_SECTIONS_H
 
 #include <asm-generic/sections.h>
 
-#define __pmac
-#define __pmacdata
-
-#define __prep
-#define __prepdata
-
-#define __chrp
-#define __chrpdata
-
-#define __openfirmware
-#define __openfirmwaredata
+#ifdef __powerpc64__
 
+extern char _end[];
 
 static inline int in_kernel_text(unsigned long addr)
 {
@@ -27,3 +16,5 @@ static inline int in_kernel_text(unsigned long addr)
 }
 
 #endif
+
+#endif  /* _ASM_POWERPC_SECTIONS_H */
diff --git a/include/asm-ppc64/semaphore.h b/include/asm-powerpc/semaphore.h
index aefe7753ea41..57369d2cadef 100644
--- a/include/asm-ppc64/semaphore.h
+++ b/include/asm-powerpc/semaphore.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_SEMAPHORE_H
-#define _PPC64_SEMAPHORE_H
+#ifndef _ASM_POWERPC_SEMAPHORE_H
+#define _ASM_POWERPC_SEMAPHORE_H
 
 /*
  * Remove spinlock-based RW semaphores; RW semaphore definitions are
@@ -31,9 +31,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name, 1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name, count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
@@ -95,4 +92,4 @@ static inline void up(struct semaphore * sem)
 
 #endif /* __KERNEL__ */
 
-#endif /* !(_PPC64_SEMAPHORE_H) */
+#endif /* _ASM_POWERPC_SEMAPHORE_H */
diff --git a/include/asm-ppc64/smu.h b/include/asm-powerpc/smu.h
index dee8eefe47bc..dee8eefe47bc 100644
--- a/include/asm-ppc64/smu.h
+++ b/include/asm-powerpc/smu.h
diff --git a/include/asm-ppc64/spinlock_types.h b/include/asm-powerpc/spinlock_types.h
index a37c8eabb9f2..74236c9f05b1 100644
--- a/include/asm-ppc64/spinlock_types.h
+++ b/include/asm-powerpc/spinlock_types.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_SPINLOCK_TYPES_H
-#define __ASM_SPINLOCK_TYPES_H
+#ifndef _ASM_POWERPC_SPINLOCK_TYPES_H
+#define _ASM_POWERPC_SPINLOCK_TYPES_H
 
 #ifndef __LINUX_SPINLOCK_TYPES_H
 # error "please don't include this file directly"
diff --git a/include/asm-ppc64/sstep.h b/include/asm-powerpc/sstep.h
index 4a68db50ee6f..630a9889c07c 100644
--- a/include/asm-ppc64/sstep.h
+++ b/include/asm-powerpc/sstep.h
@@ -16,8 +16,10 @@ struct pt_regs;
  * we don't allow putting a breakpoint on an mtmsrd instruction.
  * Similarly we don't allow breakpoints on rfid instructions.
  * These macros tell us if an instruction is a mtmsrd or rfid.
+ * Note that IS_MTMSRD returns true for both an mtmsr (32-bit)
+ * and an mtmsrd (64-bit).
  */
-#define IS_MTMSRD(instr)        (((instr) & 0xfc0007fe) == 0x7c000164)
+#define IS_MTMSRD(instr)        (((instr) & 0xfc0007be) == 0x7c000124)
 #define IS_RFID(instr)          (((instr) & 0xfc0007fe) == 0x4c000024)
 
 /* Emulate instructions that cause a transfer of control. */
diff --git a/include/asm-ppc64/statfs.h b/include/asm-powerpc/statfs.h
index 3c985e5246a7..67024026c10d 100644
--- a/include/asm-ppc64/statfs.h
+++ b/include/asm-powerpc/statfs.h
@@ -1,12 +1,11 @@
-#ifndef _PPC64_STATFS_H
-#define _PPC64_STATFS_H
+#ifndef _ASM_POWERPC_STATFS_H
+#define _ASM_POWERPC_STATFS_H
 
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
+/* For ppc32 we just use the generic definitions, not so simple on ppc64 */
+
+#ifndef __powerpc64__
+#include <asm-generic/statfs.h>
+#else
 
 #ifndef __KERNEL_STRICT_NAMES
 #include <linux/types.h>
@@ -57,5 +56,5 @@ struct compat_statfs64 {
         __u32 f_frsize;
         __u32 f_spare[5];
 };
-
-#endif  /* _PPC64_STATFS_H */
+#endif /* ! __powerpc64__ */
+#endif
diff --git a/include/asm-powerpc/synch.h b/include/asm-powerpc/synch.h
new file mode 100644
index 000000000000..4660c0394a77
--- /dev/null
+++ b/include/asm-powerpc/synch.h
@@ -0,0 +1,51 @@
+#ifndef _ASM_POWERPC_SYNCH_H 
+#define _ASM_POWERPC_SYNCH_H 
+
+#include <linux/config.h>
+
+#ifdef __powerpc64__
+#define __SUBARCH_HAS_LWSYNC
+#endif
+
+#ifdef __SUBARCH_HAS_LWSYNC
+#    define LWSYNC      lwsync
+#else
+#    define LWSYNC      sync
+#endif
+
+
+/*
+ * Arguably the bitops and *xchg operations don't imply any memory barrier
+ * or SMP ordering, but in fact a lot of drivers expect them to imply
+ * both, since they do on x86 cpus.
+ */
+#ifdef CONFIG_SMP
+#define EIEIO_ON_SMP    "eieio\n"
+#define ISYNC_ON_SMP    "\n\tisync"
+#define SYNC_ON_SMP     __stringify(LWSYNC) "\n"
+#else
+#define EIEIO_ON_SMP
+#define ISYNC_ON_SMP
+#define SYNC_ON_SMP
+#endif
+
+static inline void eieio(void)
+{
+        __asm__ __volatile__ ("eieio" : : : "memory");
+}
+
+static inline void isync(void)
+{
+        __asm__ __volatile__ ("isync" : : : "memory");
+}
+
+#ifdef CONFIG_SMP
+#define eieio_on_smp()  eieio()
+#define isync_on_smp()  isync()
+#else
+#define eieio_on_smp()  __asm__ __volatile__("": : :"memory")
+#define isync_on_smp()  __asm__ __volatile__("": : :"memory")
+#endif
+
+#endif  /* _ASM_POWERPC_SYNCH_H */
+
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
new file mode 100644
index 000000000000..5b2ecbc47907
--- /dev/null
+++ b/include/asm-powerpc/system.h
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
+ */
+#ifndef _ASM_POWERPC_SYSTEM_H
+#define _ASM_POWERPC_SYSTEM_H
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+
+#include <asm/hw_irq.h>
+#include <asm/ppc_asm.h>
+#include <asm/atomic.h>
+
+/*
+ * Memory barrier.
+ * The sync instruction guarantees that all memory accesses initiated
+ * by this processor have been performed (with respect to all other
+ * mechanisms that access memory).  The eieio instruction is a barrier
+ * providing an ordering (separately) for (a) cacheable stores and (b)
+ * loads and stores to non-cacheable memory (e.g. I/O devices).
+ *
+ * mb() prevents loads and stores being reordered across this point.
+ * rmb() prevents loads being reordered across this point.
+ * wmb() prevents stores being reordered across this point.
+ * read_barrier_depends() prevents data-dependent loads being reordered
+ *      across this point (nop on PPC).
+ *
+ * We have to use the sync instructions for mb(), since lwsync doesn't
+ * order loads with respect to previous stores.  Lwsync is fine for
+ * rmb(), though.  Note that lwsync is interpreted as sync by
+ * 32-bit and older 64-bit CPUs.
+ *
+ * For wmb(), we use sync since wmb is used in drivers to order
+ * stores to system memory with respect to writes to the device.
+ * However, smp_wmb() can be a lighter-weight eieio barrier on
+ * SMP since it is only used to order updates to system memory.
+ */
+#define mb()   __asm__ __volatile__ ("sync" : : : "memory")
+#define rmb()  __asm__ __volatile__ ("lwsync" : : : "memory")
+#define wmb()  __asm__ __volatile__ ("sync" : : : "memory")
+#define read_barrier_depends()  do { } while(0)
+
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+#define set_wmb(var, value)     do { var = value; wmb(); } while (0)
+
+#ifdef CONFIG_SMP
+#define smp_mb()        mb()
+#define smp_rmb()       rmb()
+#define smp_wmb()       __asm__ __volatile__ ("eieio" : : : "memory")
+#define smp_read_barrier_depends()      read_barrier_depends()
+#else
+#define smp_mb()        barrier()
+#define smp_rmb()       barrier()
+#define smp_wmb()       barrier()
+#define smp_read_barrier_depends()      do { } while(0)
+#endif /* CONFIG_SMP */
+
+#ifdef __KERNEL__
+struct task_struct;
+struct pt_regs;
+
+#ifdef CONFIG_DEBUGGER
+
+extern int (*__debugger)(struct pt_regs *regs);
+extern int (*__debugger_ipi)(struct pt_regs *regs);
+extern int (*__debugger_bpt)(struct pt_regs *regs);
+extern int (*__debugger_sstep)(struct pt_regs *regs);
+extern int (*__debugger_iabr_match)(struct pt_regs *regs);
+extern int (*__debugger_dabr_match)(struct pt_regs *regs);
+extern int (*__debugger_fault_handler)(struct pt_regs *regs);
+
+#define DEBUGGER_BOILERPLATE(__NAME) \
+static inline int __NAME(struct pt_regs *regs) \
+{ \
+        if (unlikely(__ ## __NAME)) \
+                return __ ## __NAME(regs); \
+        return 0; \
+}
+
+DEBUGGER_BOILERPLATE(debugger)
+DEBUGGER_BOILERPLATE(debugger_ipi)
+DEBUGGER_BOILERPLATE(debugger_bpt)
+DEBUGGER_BOILERPLATE(debugger_sstep)
+DEBUGGER_BOILERPLATE(debugger_iabr_match)
+DEBUGGER_BOILERPLATE(debugger_dabr_match)
+DEBUGGER_BOILERPLATE(debugger_fault_handler)
+
+#ifdef CONFIG_XMON
+extern void xmon_init(int enable);
+#endif
+
+#else
+static inline int debugger(struct pt_regs *regs) { return 0; }
+static inline int debugger_ipi(struct pt_regs *regs) { return 0; }
+static inline int debugger_bpt(struct pt_regs *regs) { return 0; }
+static inline int debugger_sstep(struct pt_regs *regs) { return 0; }
+static inline int debugger_iabr_match(struct pt_regs *regs) { return 0; }
+static inline int debugger_dabr_match(struct pt_regs *regs) { return 0; }
+static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
+#endif
+
+extern int set_dabr(unsigned long dabr);
+extern void print_backtrace(unsigned long *);
+extern void show_regs(struct pt_regs * regs);
+extern void flush_instruction_cache(void);
+extern void hard_reset_now(void);
+extern void poweroff_now(void);
+
+#ifdef CONFIG_6xx
+extern long _get_L2CR(void);
+extern long _get_L3CR(void);
+extern void _set_L2CR(unsigned long);
+extern void _set_L3CR(unsigned long);
+#else
+#define _get_L2CR()     0L
+#define _get_L3CR()     0L
+#define _set_L2CR(val)  do { } while(0)
+#define _set_L3CR(val)  do { } while(0)
+#endif
+
+extern void via_cuda_init(void);
+extern void read_rtc_time(void);
+extern void pmac_find_display(void);
+extern void giveup_fpu(struct task_struct *);
+extern void disable_kernel_fp(void);
+extern void enable_kernel_fp(void);
+extern void flush_fp_to_thread(struct task_struct *);
+extern void enable_kernel_altivec(void);
+extern void giveup_altivec(struct task_struct *);
+extern void load_up_altivec(struct task_struct *);
+extern int emulate_altivec(struct pt_regs *);
+extern void giveup_spe(struct task_struct *);
+extern void load_up_spe(struct task_struct *);
+extern int fix_alignment(struct pt_regs *);
+extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
+extern void cvt_df(double *from, float *to, struct thread_struct *thread);
+
+#ifdef CONFIG_ALTIVEC
+extern void flush_altivec_to_thread(struct task_struct *);
+#else
+static inline void flush_altivec_to_thread(struct task_struct *t)
+{
+}
+#endif
+
+#ifdef CONFIG_SPE
+extern void flush_spe_to_thread(struct task_struct *);
+#else
+static inline void flush_spe_to_thread(struct task_struct *t)
+{
+}
+#endif
+
+extern int call_rtas(const char *, int, int, unsigned long *, ...);
+extern void cacheable_memzero(void *p, unsigned int nb);
+extern void *cacheable_memcpy(void *, const void *, unsigned int);
+extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long);
+extern void bad_page_fault(struct pt_regs *, unsigned long, int);
+extern int die(const char *, struct pt_regs *, long);
+extern void _exception(int, struct pt_regs *, int, unsigned long);
+#ifdef CONFIG_BOOKE_WDT
+extern u32 booke_wdt_enabled;
+extern u32 booke_wdt_period;
+#endif /* CONFIG_BOOKE_WDT */
+
+/* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */
+extern unsigned char e2a(unsigned char);
+
+struct device_node;
+extern void note_scsi_host(struct device_node *, void *);
+
+extern struct task_struct *__switch_to(struct task_struct *,
+        struct task_struct *);
+#define switch_to(prev, next, last)     ((last) = __switch_to((prev), (next)))
+
+struct thread_struct;
+extern struct task_struct *_switch(struct thread_struct *prev,
+                                   struct thread_struct *next);
+
+extern unsigned int rtas_data;
+extern int mem_init_done;       /* set on boot once kmalloc can be called */
+extern unsigned long memory_limit;
+
+extern int powersave_nap;       /* set if nap mode can be used in idle loop */
+
+/*
+ * Atomic exchange
+ *
+ * Changes the memory location '*ptr' to be val and returns
+ * the previous value stored there.
+ */
+static __inline__ unsigned long
+__xchg_u32(volatile void *p, unsigned long val)
+{
+        unsigned long prev;
+
+        __asm__ __volatile__(
+        EIEIO_ON_SMP
+"1:     lwarx   %0,0,%2 \n"
+        PPC405_ERR77(0,%2)
+"       stwcx.  %3,0,%2 \n\
+        bne-    1b"
+        ISYNC_ON_SMP
+        : "=&r" (prev), "=m" (*(volatile unsigned int *)p)
+        : "r" (p), "r" (val), "m" (*(volatile unsigned int *)p)
+        : "cc", "memory");
+
+        return prev;
+}
+
+#ifdef CONFIG_PPC64
+static __inline__ unsigned long
+__xchg_u64(volatile void *p, unsigned long val)
+{
+        unsigned long prev;
+
+        __asm__ __volatile__(
+        EIEIO_ON_SMP
+"1:     ldarx   %0,0,%2 \n"
+        PPC405_ERR77(0,%2)
+"       stdcx.  %3,0,%2 \n\
+        bne-    1b"
+        ISYNC_ON_SMP
+        : "=&r" (prev), "=m" (*(volatile unsigned long *)p)
+        : "r" (p), "r" (val), "m" (*(volatile unsigned long *)p)
+        : "cc", "memory");
+
+        return prev;
+}
+#endif
+
+/*
+ * This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid xchg().
+ */
+extern void __xchg_called_with_bad_pointer(void);
+
+static __inline__ unsigned long
+__xchg(volatile void *ptr, unsigned long x, unsigned int size)
+{
+        switch (size) {
+        case 4:
+                return __xchg_u32(ptr, x);
+#ifdef CONFIG_PPC64
+        case 8:
+                return __xchg_u64(ptr, x);
+#endif
+        }
+        __xchg_called_with_bad_pointer();
+        return x;
+}
+
+#define xchg(ptr,x)                                                          \
+  ({                                                                         \
+     __typeof__(*(ptr)) _x_ = (x);                                           \
+     (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \
+  })
+
+#define tas(ptr) (xchg((ptr),1))
+
+/*
+ * Compare and exchange - if *p == old, set it to new,
+ * and return the old value of *p.
+ */
+#define __HAVE_ARCH_CMPXCHG     1
+
+static __inline__ unsigned long
+__cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
+{
+        unsigned int prev;
+
+        __asm__ __volatile__ (
+        EIEIO_ON_SMP
+"1:     lwarx   %0,0,%2         # __cmpxchg_u32\n\
+        cmpw    0,%0,%3\n\
+        bne-    2f\n"
+        PPC405_ERR77(0,%2)
+"       stwcx.  %4,0,%2\n\
+        bne-    1b"
+        ISYNC_ON_SMP
+        "\n\
+2:"
+        : "=&r" (prev), "=m" (*p)
+        : "r" (p), "r" (old), "r" (new), "m" (*p)
+        : "cc", "memory");
+
+        return prev;
+}
+
+#ifdef CONFIG_PPC64
+static __inline__ unsigned long
+__cmpxchg_u64(volatile long *p, unsigned long old, unsigned long new)
+{
+        unsigned long prev;
+
+        __asm__ __volatile__ (
+        EIEIO_ON_SMP
+"1:     ldarx   %0,0,%2         # __cmpxchg_u64\n\
+        cmpd    0,%0,%3\n\
+        bne-    2f\n\
+        stdcx.  %4,0,%2\n\
+        bne-    1b"
+        ISYNC_ON_SMP
+        "\n\
+2:"
+        : "=&r" (prev), "=m" (*p)
+        : "r" (p), "r" (old), "r" (new), "m" (*p)
+        : "cc", "memory");
+
+        return prev;
+}
+#endif
+
+/* This function doesn't exist, so you'll get a linker error
+   if something tries to do an invalid cmpxchg().  */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static __inline__ unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
+          unsigned int size)
+{
+        switch (size) {
+        case 4:
+                return __cmpxchg_u32(ptr, old, new);
+#ifdef CONFIG_PPC64
+        case 8:
+                return __cmpxchg_u64(ptr, old, new);
+#endif
+        }
+        __cmpxchg_called_with_bad_pointer();
+        return old;
+}
+
+#define cmpxchg(ptr,o,n)                                                 \
+  ({                                                                     \
+     __typeof__(*(ptr)) _o_ = (o);                                       \
+     __typeof__(*(ptr)) _n_ = (n);                                       \
+     (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,           \
+                                    (unsigned long)_n_, sizeof(*(ptr))); \
+  })
+
+#ifdef CONFIG_PPC64
+/*
+ * We handle most unaligned accesses in hardware. On the other hand 
+ * unaligned DMA can be very expensive on some ppc64 IO chips (it does
+ * powers of 2 writes until it reaches sufficient alignment).
+ *
+ * Based on this we disable the IP header alignment in network drivers.
+ */
+#define NET_IP_ALIGN   0
+#endif
+
+#define arch_align_stack(x) (x)
+
+/* Used in very early kernel initialization. */
+extern unsigned long reloc_offset(void);
+extern unsigned long add_reloc_offset(unsigned long);
+extern void reloc_got2(unsigned long);
+
+#define PTRRELOC(x)     ((typeof(x)) add_reloc_offset((unsigned long)(x)))
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_SYSTEM_H */
diff --git a/include/asm-ppc64/thread_info.h b/include/asm-powerpc/thread_info.h
index 0494df6fca74..ab17db79f69d 100644
--- a/include/asm-ppc64/thread_info.h
+++ b/include/asm-powerpc/thread_info.h
@@ -1,15 +1,25 @@
-/* thread_info.h: PPC low-level thread information
+/* thread_info.h: PowerPC low-level thread information
  * adapted from the i386 version by Paul Mackerras
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
  * - Incorporating suggestions made by Linus Torvalds and Dave Miller
  */
 
-#ifndef _ASM_THREAD_INFO_H
-#define _ASM_THREAD_INFO_H
+#ifndef _ASM_POWERPC_THREAD_INFO_H
+#define _ASM_POWERPC_THREAD_INFO_H
 
 #ifdef __KERNEL__
 
+/* We have 8k stacks on ppc32 and 16k on ppc64 */
+
+#ifdef CONFIG_PPC64
+#define THREAD_SHIFT            14
+#else
+#define THREAD_SHIFT            13
+#endif
+
+#define THREAD_SIZE             (1 << THREAD_SHIFT)
+
 #ifndef __ASSEMBLY__
 #include <linux/config.h>
 #include <linux/cache.h>
@@ -24,7 +34,8 @@ struct thread_info {
         struct task_struct *task;               /* main task structure */
         struct exec_domain *exec_domain;        /* execution domain */
         int             cpu;                    /* cpu we're on */
-        int             preempt_count;          /* 0 => preemptable, <0 => BUG */
+        int             preempt_count;          /* 0 => preemptable,
+                                                   <0 => BUG */
         struct restart_block restart_block;
         /* set by force_successful_syscall_return */
         unsigned char   syscall_noerror;
@@ -54,32 +65,38 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_ORDER            2
-#define THREAD_SIZE             (PAGE_SIZE << THREAD_ORDER)
-#define THREAD_SHIFT            (PAGE_SHIFT + THREAD_ORDER)
 #ifdef CONFIG_DEBUG_STACK_USAGE
-#define alloc_thread_info(tsk)                                  \
-        ({                                                      \
-                struct thread_info *ret;                        \
-                                                                \
-                ret = kmalloc(THREAD_SIZE, GFP_KERNEL);         \
-                if (ret)                                        \
-                        memset(ret, 0, THREAD_SIZE);            \
-                ret;                                            \
-        })
+#define THREAD_INFO_GFP         GFP_KERNEL | __GFP_ZERO
 #else
-#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL)
+#define THREAD_INFO_GFP         GFP_KERNEL
 #endif
+
+#if THREAD_SHIFT >= PAGE_SHIFT
+
+#define THREAD_ORDER    (THREAD_SHIFT - PAGE_SHIFT)
+
+#define alloc_thread_info(tsk)  \
+        ((struct thread_info *)__get_free_pages(THREAD_INFO_GFP, THREAD_ORDER))
+#define free_thread_info(ti)    free_pages((unsigned long)ti, THREAD_ORDER)
+
+#else /* THREAD_SHIFT < PAGE_SHIFT */
+
+#define alloc_thread_info(tsk)  kmalloc(THREAD_SIZE, THREAD_INFO_GFP)
 #define free_thread_info(ti)    kfree(ti)
+
+#endif /* THREAD_SHIFT < PAGE_SHIFT */
+
 #define get_thread_info(ti)     get_task_struct((ti)->task)
 #define put_thread_info(ti)     put_task_struct((ti)->task)
 
 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)
 {
-        struct thread_info *ti;
-        __asm__("clrrdi %0,1,%1" : "=r"(ti) : "i" (THREAD_SHIFT));
-        return ti;
+        register unsigned long sp asm("r1");
+
+        /* gcc4, at least, is smart enough to turn this into a single
+         * rlwinm for ppc32 and clrrdi for ppc64 */
+        return (struct thread_info *)(sp & ~(THREAD_SIZE-1));
 }
 
 #endif /* __ASSEMBLY__ */
@@ -122,4 +139,4 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif /* __KERNEL__ */
 
-#endif /* _ASM_THREAD_INFO_H */
+#endif /* _ASM_POWERPC_THREAD_INFO_H */
diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h
new file mode 100644
index 000000000000..410e795f7d43
--- /dev/null
+++ b/include/asm-powerpc/time.h
@@ -0,0 +1,226 @@
+/*
+ * Common time prototypes and such for all ppc machines.
+ *
+ * Written by Cort Dougan (cort@cs.nmt.edu) to merge
+ * Paul Mackerras' version and mine for PReP and Pmac.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef __POWERPC_TIME_H
+#define __POWERPC_TIME_H
+
+#ifdef __KERNEL__
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/percpu.h>
+
+#include <asm/processor.h>
+#ifdef CONFIG_PPC64
+#include <asm/paca.h>
+#include <asm/iSeries/HvCall.h>
+#endif
+
+/* time.c */
+extern unsigned long tb_ticks_per_jiffy;
+extern unsigned long tb_ticks_per_usec;
+extern unsigned long tb_ticks_per_sec;
+extern u64 tb_to_xs;
+extern unsigned      tb_to_us;
+extern unsigned long tb_last_stamp;
+extern u64 tb_last_jiffy;
+
+DECLARE_PER_CPU(unsigned long, last_jiffy);
+
+struct rtc_time;
+extern void to_tm(int tim, struct rtc_time * tm);
+extern time_t last_rtc_update;
+
+extern void generic_calibrate_decr(void);
+extern void wakeup_decrementer(void);
+
+/* Some sane defaults: 125 MHz timebase, 1GHz processor */
+extern unsigned long ppc_proc_freq;
+#define DEFAULT_PROC_FREQ       (DEFAULT_TB_FREQ * 8)
+extern unsigned long ppc_tb_freq;
+#define DEFAULT_TB_FREQ         125000000UL
+
+/*
+ * By putting all of this stuff into a single struct we 
+ * reduce the number of cache lines touched by do_gettimeofday.
+ * Both by collecting all of the data in one cache line and
+ * by touching only one TOC entry on ppc64.
+ */
+struct gettimeofday_vars {
+        u64 tb_to_xs;
+        u64 stamp_xsec;
+        u64 tb_orig_stamp;
+};
+
+struct gettimeofday_struct {
+        unsigned long tb_ticks_per_sec;
+        struct gettimeofday_vars vars[2];
+        struct gettimeofday_vars * volatile varp;
+        unsigned      var_idx;
+        unsigned      tb_to_us;
+};
+
+struct div_result {
+        u64 result_high;
+        u64 result_low;
+};
+
+/* Accessor functions for the timebase (RTC on 601) registers. */
+/* If one day CONFIG_POWER is added just define __USE_RTC as 1 */
+#ifdef CONFIG_6xx
+#define __USE_RTC()     (!cpu_has_feature(CPU_FTR_USE_TB))
+#else
+#define __USE_RTC()     0
+#endif
+
+/* On ppc64 this gets us the whole timebase; on ppc32 just the lower half */
+static inline unsigned long get_tbl(void)
+{
+        unsigned long tbl;
+
+#if defined(CONFIG_403GCX)
+        asm volatile("mfspr %0, 0x3dd" : "=r" (tbl));
+#else
+        asm volatile("mftb %0" : "=r" (tbl));
+#endif
+        return tbl;
+}
+
+static inline unsigned int get_tbu(void)
+{
+        unsigned int tbu;
+
+#if defined(CONFIG_403GCX)
+        asm volatile("mfspr %0, 0x3dc" : "=r" (tbu));
+#else
+        asm volatile("mftbu %0" : "=r" (tbu));
+#endif
+        return tbu;
+}
+
+static inline unsigned int get_rtcl(void)
+{
+        unsigned int rtcl;
+
+        asm volatile("mfrtcl %0" : "=r" (rtcl));
+        return rtcl;
+}
+
+static inline u64 get_rtc(void)
+{
+        unsigned int hi, lo, hi2;
+
+        do {
+                asm volatile("mfrtcu %0; mfrtcl %1; mfrtcu %2"
+                             : "=r" (hi), "=r" (lo), "=r" (hi2));
+        } while (hi2 != hi);
+        return (u64)hi * 1000000000 + lo;
+}
+
+#ifdef CONFIG_PPC64
+static inline u64 get_tb(void)
+{
+        return mftb();
+}
+#else
+static inline u64 get_tb(void)
+{
+        unsigned int tbhi, tblo, tbhi2;
+
+        do {
+                tbhi = get_tbu();
+                tblo = get_tbl();
+                tbhi2 = get_tbu();
+        } while (tbhi != tbhi2);
+
+        return ((u64)tbhi << 32) | tblo;
+}
+#endif
+
+static inline void set_tb(unsigned int upper, unsigned int lower)
+{
+        mtspr(SPRN_TBWL, 0);
+        mtspr(SPRN_TBWU, upper);
+        mtspr(SPRN_TBWL, lower);
+}
+
+/* Accessor functions for the decrementer register.
+ * The 4xx doesn't even have a decrementer.  I tried to use the
+ * generic timer interrupt code, which seems OK, with the 4xx PIT
+ * in auto-reload mode.  The problem is PIT stops counting when it
+ * hits zero.  If it would wrap, we could use it just like a decrementer.
+ */
+static inline unsigned int get_dec(void)
+{
+#if defined(CONFIG_40x)
+        return (mfspr(SPRN_PIT));
+#else
+        return (mfspr(SPRN_DEC));
+#endif
+}
+
+static inline void set_dec(int val)
+{
+#if defined(CONFIG_40x)
+        return;         /* Have to let it auto-reload */
+#elif defined(CONFIG_8xx_CPU6)
+        set_dec_cpu6(val);
+#else
+#ifdef CONFIG_PPC_ISERIES
+        struct paca_struct *lpaca = get_paca();
+        int cur_dec;
+
+        if (lpaca->lppaca.shared_proc) {
+                lpaca->lppaca.virtual_decr = val;
+                cur_dec = get_dec();
+                if (cur_dec > val)
+                        HvCall_setVirtualDecr();
+        } else
+#endif
+                mtspr(SPRN_DEC, val);
+#endif /* not 40x or 8xx_CPU6 */
+}
+
+static inline unsigned long tb_ticks_since(unsigned long tstamp)
+{
+        if (__USE_RTC()) {
+                int delta = get_rtcl() - (unsigned int) tstamp;
+                return delta < 0 ? delta + 1000000000 : delta;
+        }
+        return get_tbl() - tstamp;
+}
+
+#define mulhwu(x,y) \
+({unsigned z; asm ("mulhwu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
+
+#ifdef CONFIG_PPC64
+#define mulhdu(x,y) \
+({unsigned long z; asm ("mulhdu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
+#else
+extern u64 mulhdu(u64, u64);
+#endif
+
+extern void smp_space_timers(unsigned int);
+
+extern unsigned mulhwu_scale_factor(unsigned, unsigned);
+extern void div128_by_32(u64 dividend_high, u64 dividend_low,
+                         unsigned divisor, struct div_result *dr);
+
+/* Used to store Processor Utilization register (purr) values */
+
+struct cpu_usage {
+        u64 current_tb;  /* Holds the current purr register values */
+};
+
+DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array);
+
+#endif /* __KERNEL__ */
+#endif /* __PPC64_TIME_H */
diff --git a/include/asm-ppc64/types.h b/include/asm-powerpc/types.h
index bf294c1761b2..ec3c2ee8bf86 100644
--- a/include/asm-ppc64/types.h
+++ b/include/asm-powerpc/types.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_TYPES_H
-#define _PPC64_TYPES_H
+#ifndef _ASM_POWERPC_TYPES_H
+#define _ASM_POWERPC_TYPES_H
 
 #ifndef __ASSEMBLY__
 
@@ -16,7 +16,11 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#ifdef __powerpc64__
 typedef unsigned int umode_t;
+#else
+typedef unsigned short umode_t;
+#endif
 
 /*
  * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
@@ -32,8 +36,15 @@ typedef unsigned short __u16;
 typedef __signed__ int __s32;
 typedef unsigned int __u32;
 
+#ifdef __powerpc64__
 typedef __signed__ long __s64;
 typedef unsigned long __u64;
+#else
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+#endif /* __powerpc64__ */
 
 typedef struct {
         __u32 u[4];
@@ -45,10 +56,16 @@ typedef struct {
 /*
  * These aren't exported outside the kernel to avoid name space clashes
  */
+#ifdef __powerpc64__
 #define BITS_PER_LONG 64
+#else
+#define BITS_PER_LONG 32
+#endif
 
 #ifndef __ASSEMBLY__
 
+#include <linux/config.h>
+
 typedef signed char s8;
 typedef unsigned char u8;
 
@@ -58,12 +75,21 @@ typedef unsigned short u16;
 typedef signed int s32;
 typedef unsigned int u32;
 
+#ifdef __powerpc64__
 typedef signed long s64;
 typedef unsigned long u64;
+#else
+typedef signed long long s64;
+typedef unsigned long long u64;
+#endif
 
 typedef __vector128 vector128;
 
+#ifdef __powerpc64__
+typedef u64 dma_addr_t;
+#else
 typedef u32 dma_addr_t;
+#endif
 typedef u64 dma64_addr_t;
 
 typedef struct {
@@ -72,8 +98,13 @@ typedef struct {
         unsigned long env;
 } func_descr_t;
 
+#ifdef CONFIG_LBD
+typedef u64 sector_t;
+#define HAVE_SECTOR_T
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
 
-#endif /* _PPC64_TYPES_H */
+#endif /* _ASM_POWERPC_TYPES_H */
diff --git a/include/asm-ppc/uninorth.h b/include/asm-powerpc/uninorth.h
index f737732c3861..f737732c3861 100644
--- a/include/asm-ppc/uninorth.h
+++ b/include/asm-powerpc/uninorth.h
diff --git a/include/asm-ppc/unistd.h b/include/asm-powerpc/unistd.h
index 3173ab3d2eb9..0991dfceef1d 100644
--- a/include/asm-ppc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -3,7 +3,13 @@
 
 /*
  * This file contains the system call numbers.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
  */
+
 #define __NR_restart_syscall      0
 #define __NR_exit                 1
 #define __NR_fork                 2
@@ -196,19 +202,23 @@
 #define __NR_vfork              189
 #define __NR_ugetrlimit         190     /* SuS compliant getrlimit */
 #define __NR_readahead          191
+#ifndef __powerpc64__                   /* these are 32-bit only */
 #define __NR_mmap2              192
 #define __NR_truncate64         193
 #define __NR_ftruncate64        194
 #define __NR_stat64             195
 #define __NR_lstat64            196
 #define __NR_fstat64            197
+#endif
 #define __NR_pciconfig_read     198
 #define __NR_pciconfig_write    199
 #define __NR_pciconfig_iobase   200
 #define __NR_multiplexer        201
 #define __NR_getdents64         202
 #define __NR_pivot_root         203
+#ifndef __powerpc64__
 #define __NR_fcntl64            204
+#endif
 #define __NR_madvise            205
 #define __NR_mincore            206
 #define __NR_gettid             207
@@ -230,7 +240,9 @@
 #define __NR_sched_getaffinity  223
 /* 224 currently unused */
 #define __NR_tuxcall            225
+#ifndef __powerpc64__
 #define __NR_sendfile64         226
+#endif
 #define __NR_io_setup           227
 #define __NR_io_destroy         228
 #define __NR_io_getevents       229
@@ -258,14 +270,16 @@
 #define __NR_utimes             251
 #define __NR_statfs64           252
 #define __NR_fstatfs64          253
+#ifndef __powerpc64__
 #define __NR_fadvise64_64       254
+#endif
 #define __NR_rtas               255
 #define __NR_sys_debug_setcontext 256
 /* Number 257 is reserved for vserver */
 /* 258 currently unused */
-/* Number 259 is reserved for new sys_mbind */
-/* Number 260 is reserved for new sys_get_mempolicy */
-/* Number 261 is reserved for new sys_set_mempolicy */
+#define __NR_mbind              259
+#define __NR_get_mempolicy      260
+#define __NR_set_mempolicy      261
 #define __NR_mq_open            262
 #define __NR_mq_unlink          263
 #define __NR_mq_timedsend       264
@@ -285,7 +299,12 @@
 
 #define __NR_syscalls           278
 
-#define __NR(n) #n
+#ifdef __KERNEL__
+#define __NR__exit __NR_exit
+#define NR_syscalls     __NR_syscalls
+#endif
+
+#ifndef __ASSEMBLY__
 
 /* On powerpc a system call basically clobbers the same registers like a
  * function call, with the exception of LR (which is needed for the
@@ -389,7 +408,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
 {                                                                       \
         __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5);      \
 }
-
 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
 {                                                                       \
@@ -398,12 +416,13 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 
 #ifdef __KERNEL__
 
-#define __NR__exit __NR_exit
-#define NR_syscalls     __NR_syscalls
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/linkage.h>
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
@@ -423,23 +442,17 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
-
-/*
- * Forking from kernel space will result in the child getting a new,
- * empty kernel stack area.  Thus the child cannot access automatic
- * variables set in the parent unless they are in registers, and the
- * procedure where the fork was done cannot return to its caller in
- * the child.
- */
-
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
+#ifdef CONFIG_PPC32
+#define __ARCH_WANT_OLD_STAT
+#endif
+#ifdef CONFIG_PPC64
+#define __ARCH_WANT_COMPAT_SYS_TIME
+#endif
 
 /*
  * System call prototypes.
  */
+#ifdef __KERNEL_SYSCALLS__
 extern pid_t setsid(void);
 extern int write(int fd, const char *buf, off_t count);
 extern int read(int fd, char *buf, off_t count);
@@ -449,10 +462,13 @@ extern int execve(const char *file, char **argv, char **envp);
 extern int open(const char *file, int flag, int mode);
 extern int close(int fd);
 extern pid_t waitpid(pid_t pid, int *wait_stat, int options);
+#endif /* __KERNEL_SYSCALLS__ */
 
-unsigned long sys_mmap(unsigned long addr, size_t len,
-                        unsigned long prot, unsigned long flags,
-                        unsigned long fd, off_t offset);
+/*
+ * Functions that implement syscalls.
+ */
+unsigned long sys_mmap(unsigned long addr, size_t len, unsigned long prot,
+                       unsigned long flags, unsigned long fd, off_t offset);
 unsigned long sys_mmap2(unsigned long addr, size_t len,
                         unsigned long prot, unsigned long flags,
                         unsigned long fd, unsigned long pgoff);
@@ -461,22 +477,18 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
                 unsigned long a3, unsigned long a4, unsigned long a5,
                 struct pt_regs *regs);
 int sys_clone(unsigned long clone_flags, unsigned long usp,
-              int __user *parent_tidp, void __user *child_threadptr,
-              int __user *child_tidp, int p6,
-              struct pt_regs *regs);
-int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6,
+                int __user *parent_tidp, void __user *child_threadptr,
+                int __user *child_tidp, int p6, struct pt_regs *regs);
+int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
+                unsigned long p4, unsigned long p5, unsigned long p6,
                 struct pt_regs *regs);
-int sys_vfork(int p1, int p2, int p3, int p4, int p5, int p6,
+int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
+                unsigned long p4, unsigned long p5, unsigned long p6,
                 struct pt_regs *regs);
 int sys_pipe(int __user *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
-long sys_rt_sigaction(int sig,
-                      const struct sigaction __user *act,
-                      struct sigaction __user *oact,
-                      size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
+long sys_rt_sigaction(int sig, const struct sigaction __user *act,
+                      struct sigaction __user *oact, size_t sigsetsize);
 
 /*
  * "Conditional" syscalls
@@ -484,10 +496,14 @@ long sys_rt_sigaction(int sig,
  * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
  * but it doesn't work on all toolchains, so we just do it by hand
  */
-#ifndef cond_syscall
+#ifdef CONFIG_PPC32
 #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+#else
+#define cond_syscall(x) asm(".weak\t." #x "\n\t.set\t." #x ",.sys_ni_syscall")
 #endif
 
-#endif /* __KERNEL__ */
+#endif          /* __KERNEL__ */
+
+#endif          /* __ASSEMBLY__ */
 
 #endif /* _ASM_PPC_UNISTD_H_ */
diff --git a/include/asm-ppc64/vga.h b/include/asm-powerpc/vga.h
index c09849743f45..f8d350aabf1a 100644
--- a/include/asm-ppc64/vga.h
+++ b/include/asm-powerpc/vga.h
@@ -1,16 +1,14 @@
+#ifndef _ASM_POWERPC_VGA_H_
+#define _ASM_POWERPC_VGA_H_
+
+#ifdef __KERNEL__
+
 /*
  *      Access to VGA videoram
  *
  *      (c) 1998 Martin Mares <mj@ucw.cz>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
  */
 
-#ifndef _LINUX_ASM_VGA_H_
-#define _LINUX_ASM_VGA_H_
 
 #include <asm/io.h>
 
@@ -42,9 +40,15 @@ static inline u16 scr_readw(volatile const u16 *addr)
 #endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
 
 extern unsigned long vgacon_remap_base;
+
+#ifdef __powerpc64__
 #define VGA_MAP_MEM(x) ((unsigned long) ioremap((x), 0))
+#else
+#define VGA_MAP_MEM(x) (x + vgacon_remap_base)
+#endif
 
 #define vga_readb(x) (*(x))
 #define vga_writeb(x,y) (*(y) = (x))
 
-#endif
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_VGA_H_ */
diff --git a/include/asm-ppc64/vio.h b/include/asm-powerpc/vio.h
index 03f1b95f433b..e0ccf108277c 100644
--- a/include/asm-ppc64/vio.h
+++ b/include/asm-powerpc/vio.h
@@ -1,18 +1,18 @@
 /*
  * IBM PowerPC Virtual I/O Infrastructure Support.
  *
- *    Copyright (c) 2003 IBM Corp.
- *     Dave Engebretsen engebret@us.ibm.com
- *     Santiago Leon santil@us.ibm.com
+ * Copyright (c) 2003 IBM Corp.
+ *  Dave Engebretsen engebret@us.ibm.com
+ *  Santiago Leon santil@us.ibm.com
  *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
  */
 
-#ifndef _ASM_VIO_H
-#define _ASM_VIO_H
+#ifndef _ASM_POWERPC_VIO_H
+#define _ASM_POWERPC_VIO_H
 
 #include <linux/config.h>
 #include <linux/init.h>
@@ -55,10 +55,10 @@ struct vio_dev {
 
 struct vio_driver {
         struct list_head node;
-        char *name;
         const struct vio_device_id *id_table;
         int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
         int (*remove)(struct vio_dev *dev);
+        void (*shutdown)(struct vio_dev *dev);
         unsigned long driver_data;
         struct device_driver driver;
 };
@@ -103,4 +103,4 @@ static inline struct vio_dev *to_vio_dev(struct device *dev)
         return container_of(dev, struct vio_dev, dev);
 }
 
-#endif /* _ASM_VIO_H */
+#endif /* _ASM_POWERPC_VIO_H */
diff --git a/include/asm-powerpc/xmon.h b/include/asm-powerpc/xmon.h
new file mode 100644
index 000000000000..43f7129984c7
--- /dev/null
+++ b/include/asm-powerpc/xmon.h
@@ -0,0 +1,12 @@
+#ifndef __PPC_XMON_H
+#define __PPC_XMON_H
+#ifdef __KERNEL__
+
+struct pt_regs;
+
+extern int xmon(struct pt_regs *excp);
+extern void xmon_printf(const char *fmt, ...);
+extern void xmon_init(int);
+
+#endif
+#endif
diff --git a/include/asm-ppc/a.out.h b/include/asm-ppc/a.out.h
deleted file mode 100644
index 8979a94c4a81..000000000000
--- a/include/asm-ppc/a.out.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef __PPC_A_OUT_H__
-#define __PPC_A_OUT_H__
-
-/* grabbed from the intel stuff  */
-#define STACK_TOP TASK_SIZE
-
-
-struct exec
-{
-  unsigned long a_info;         /* Use macros N_MAGIC, etc for access */
-  unsigned a_text;              /* length of text, in bytes */
-  unsigned a_data;              /* length of data, in bytes */
-  unsigned a_bss;               /* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;              /* length of symbol table data in file, in bytes */
-  unsigned a_entry;             /* start address */
-  unsigned a_trsize;            /* length of relocation info for text, in bytes */
-  unsigned a_drsize;            /* length of relocation info for data, in bytes */
-};
-
-
-#define N_TRSIZE(a)     ((a).a_trsize)
-#define N_DRSIZE(a)     ((a).a_drsize)
-#define N_SYMSIZE(a)    ((a).a_syms)
-
-
-#endif
diff --git a/include/asm-ppc/auxvec.h b/include/asm-ppc/auxvec.h
deleted file mode 100644
index 172358df29c8..000000000000
--- a/include/asm-ppc/auxvec.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef __PPC_AUXVEC_H
-#define __PPC_AUXVEC_H
-
-/*
- * We need to put in some extra aux table entries to tell glibc what
- * the cache block size is, so it can use the dcbz instruction safely.
- */
-#define AT_DCACHEBSIZE          19
-#define AT_ICACHEBSIZE          20
-#define AT_UCACHEBSIZE          21
-/* A special ignored type value for PPC, for glibc compatibility.  */
-#define AT_IGNOREPPC            22
-
-#endif
diff --git a/include/asm-ppc/bug.h b/include/asm-ppc/bug.h
deleted file mode 100644
index 8b34fd682b0d..000000000000
--- a/include/asm-ppc/bug.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef _PPC_BUG_H
-#define _PPC_BUG_H
-
-struct bug_entry {
-        unsigned long   bug_addr;
-        int             line;
-        const char      *file;
-        const char      *function;
-};
-
-/*
- * If this bit is set in the line number it means that the trap
- * is for WARN_ON rather than BUG or BUG_ON.
- */
-#define BUG_WARNING_TRAP        0x1000000
-
-#ifdef CONFIG_BUG
-#define BUG() do {                                                       \
-        __asm__ __volatile__(                                            \
-                "1:     twi 31,0,0\n"                                    \
-                ".section __bug_table,\"a\"\n\t"                         \
-                "       .long 1b,%0,%1,%2\n"                             \
-                ".previous"                                              \
-                : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
-} while (0)
-
-#define BUG_ON(x) do {                                                  \
-        if (!__builtin_constant_p(x) || (x)) {                          \
-                __asm__ __volatile__(                                   \
-                        "1:     twnei %0,0\n"                           \
-                        ".section __bug_table,\"a\"\n\t"                \
-                        "       .long 1b,%1,%2,%3\n"                    \
-                        ".previous"                                     \
-                        : : "r" (x), "i" (__LINE__), "i" (__FILE__),    \
-                            "i" (__FUNCTION__));                        \
-        }                                                               \
-} while (0)
-
-#define WARN_ON(x) do {                                                 \
-        if (!__builtin_constant_p(x) || (x)) {                          \
-                __asm__ __volatile__(                                   \
-                        "1:     twnei %0,0\n"                           \
-                        ".section __bug_table,\"a\"\n\t"                \
-                        "       .long 1b,%1,%2,%3\n"                    \
-                        ".previous"                                     \
-                        : : "r" (x), "i" (__LINE__ + BUG_WARNING_TRAP), \
-                            "i" (__FILE__), "i" (__FUNCTION__));        \
-        }                                                               \
-} while (0)
-
-#define HAVE_ARCH_BUG
-#define HAVE_ARCH_BUG_ON
-#define HAVE_ARCH_WARN_ON
-#endif
-
-#include <asm-generic/bug.h>
-
-#endif
diff --git a/include/asm-ppc/byteorder.h b/include/asm-ppc/byteorder.h
deleted file mode 100644
index c63c81ec7968..000000000000
--- a/include/asm-ppc/byteorder.h
+++ /dev/null
@@ -1,76 +0,0 @@
-#ifndef _PPC_BYTEORDER_H
-#define _PPC_BYTEORDER_H
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-#ifdef __KERNEL__
-
-extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
-{
-        unsigned val;
-
-        __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
-        return val;
-}
-
-extern __inline__ void st_le16(volatile unsigned short *addr, const unsigned val)
-{
-        __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
-}
-
-extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
-{
-        unsigned val;
-
-        __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
-        return val;
-}
-
-extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
-{
-        __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
-}
-
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 value)
-{
-        __u16 result;
-
-        __asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (value >> 8), "r" (value));
-        return result;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 value)
-{
-        __u32 result;
-
-        __asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (value>>24), "r" (value));
-        __asm__("rlwimi %0,%2,8,8,15"   : "=&r" (result) : "0" (result),    "r" (value));
-        __asm__("rlwimi %0,%2,24,0,7"   : "=&r" (result) : "0" (result),    "r" (value));
-
-        return result;
-}
-#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab16(x) ___arch__swab16(x)
-
-/* The same, but returns converted value from the location pointer by addr. */
-#define __arch__swab16p(addr) ld_le16(addr)
-#define __arch__swab32p(addr) ld_le32(addr)
-
-/* The same, but do the conversion in situ, ie. put the value back to addr. */
-#define __arch__swab16s(addr) st_le16(addr,*addr)
-#define __arch__swab32s(addr) st_le32(addr,*addr)
-
-#endif /* __KERNEL__ */
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __BYTEORDER_HAS_U64__
-#  define __SWAB_64_THRU_32__
-#endif
-
-#endif /* __GNUC__ */
-
-#include <linux/byteorder/big_endian.h>
-
-#endif /* _PPC_BYTEORDER_H */
diff --git a/include/asm-ppc/cache.h b/include/asm-ppc/cache.h
index 38f2f1be4a87..7a157d0f4b5f 100644
--- a/include/asm-ppc/cache.h
+++ b/include/asm-ppc/cache.h
@@ -9,21 +9,18 @@
 
 /* bytes per L1 cache line */
 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
-#define L1_CACHE_LINE_SIZE      16
-#define LG_L1_CACHE_LINE_SIZE   4
+#define L1_CACHE_SHIFT  4
 #define MAX_COPY_PREFETCH       1
 #elif defined(CONFIG_PPC64BRIDGE)
-#define L1_CACHE_LINE_SIZE      128
-#define LG_L1_CACHE_LINE_SIZE   7
+#define L1_CACHE_SHIFT  7
 #define MAX_COPY_PREFETCH       1
 #else
-#define L1_CACHE_LINE_SIZE      32
-#define LG_L1_CACHE_LINE_SIZE   5
+#define L1_CACHE_SHIFT  5
 #define MAX_COPY_PREFETCH       4
 #endif
 
-#define L1_CACHE_BYTES L1_CACHE_LINE_SIZE
-#define L1_CACHE_SHIFT LG_L1_CACHE_LINE_SIZE
+#define L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
+
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 #define L1_CACHE_SHIFT_MAX 7    /* largest L1 which this arch supports */
 
diff --git a/include/asm-ppc/checksum.h b/include/asm-ppc/checksum.h
deleted file mode 100644
index cf953a92c7ab..000000000000
--- a/include/asm-ppc/checksum.h
+++ /dev/null
@@ -1,107 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_CHECKSUM_H
-#define _PPC_CHECKSUM_H
-
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-extern unsigned int csum_partial(const unsigned char * buff, int len,
-                                 unsigned int sum);
-
-/*
- * Computes the checksum of a memory block at src, length len,
- * and adds in "sum" (32-bit), while copying the block to dst.
- * If an access exception occurs on src or dst, it stores -EFAULT
- * to *src_err or *dst_err respectively (if that pointer is not
- * NULL), and, for an error on src, zeroes the rest of dst.
- *
- * Like csum_partial, this must be called with even lengths,
- * except for the last fragment.
- */
-extern unsigned int csum_partial_copy_generic(const char *src, char *dst,
-                                              int len, unsigned int sum,
-                                              int *src_err, int *dst_err);
-
-#define csum_partial_copy_from_user(src, dst, len, sum, errp)   \
-        csum_partial_copy_generic((__force void *)(src), (dst), (len), (sum), (errp), NULL)
-
-/* FIXME: this needs to be written to really do no check -- Cort */
-#define csum_partial_copy_nocheck(src, dst, len, sum)   \
-        csum_partial_copy_generic((src), (dst), (len), (sum), NULL, NULL)
-
-/*
- * turns a 32-bit partial checksum (e.g. from csum_partial) into a
- * 1's complement 16-bit checksum.
- */
-static inline unsigned int csum_fold(unsigned int sum)
-{
-        unsigned int tmp;
-
-        /* swap the two 16-bit halves of sum */
-        __asm__("rlwinm %0,%1,16,0,31" : "=r" (tmp) : "r" (sum));
-        /* if there is a carry from adding the two 16-bit halves,
-           it will carry from the lower half into the upper half,
-           giving us the correct sum in the upper half. */
-        sum = ~(sum + tmp) >> 16;
-        return sum;
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-static inline unsigned short ip_compute_csum(unsigned char * buff, int len)
-{
-        return csum_fold(csum_partial(buff, len, 0));
-}
-
-/*
- * FIXME: I swiped this one from the sparc and made minor modifications.
- * It may not be correct.  -- Cort
- */
-static inline unsigned long csum_tcpudp_nofold(unsigned long saddr,
-                                                   unsigned long daddr,
-                                                   unsigned short len,
-                                                   unsigned short proto,
-                                                   unsigned int sum)
-{
-    __asm__("\n\
-        addc %0,%0,%1 \n\
-        adde %0,%0,%2 \n\
-        adde %0,%0,%3 \n\
-        addze %0,%0 \n\
-        "
-        : "=r" (sum)
-        : "r" (daddr), "r"(saddr), "r"((proto<<16)+len), "0"(sum));
-    return sum;
-}
-
-/*
- * This is a version of ip_compute_csum() optimized for IP headers,
- * which always checksum on 4 octet boundaries.  ihl is the number
- * of 32-bit words and is always >= 5.
- */
-extern unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl);
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-extern unsigned short csum_tcpudp_magic(unsigned long saddr,
-                                        unsigned long daddr,
-                                        unsigned short len,
-                                        unsigned short proto,
-                                        unsigned int sum);
-
-#endif
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h
index 9483d4bfacf7..43d2ebbc7748 100644
--- a/include/asm-ppc/cpm2.h
+++ b/include/asm-ppc/cpm2.h
@@ -1087,6 +1087,9 @@ typedef struct im_idma {
 #define SCCR_PCIDF_MSK  0x00000078      /* PCI division factor  */
 #define SCCR_PCIDF_SHIFT 3
 
+#ifndef CPM_IMMR_OFFSET
+#define CPM_IMMR_OFFSET 0x101a8
+#endif
 
 #endif /* __CPM2__ */
 #endif /* __KERNEL__ */
diff --git a/include/asm-ppc/cputable.h b/include/asm-ppc/cputable.h
deleted file mode 100644
index e17c492c870b..000000000000
--- a/include/asm-ppc/cputable.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- *  include/asm-ppc/cputable.h
- *
- *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#ifndef __ASM_PPC_CPUTABLE_H
-#define __ASM_PPC_CPUTABLE_H
-
-/* Exposed to userland CPU features */
-#define PPC_FEATURE_32                  0x80000000
-#define PPC_FEATURE_64                  0x40000000
-#define PPC_FEATURE_601_INSTR           0x20000000
-#define PPC_FEATURE_HAS_ALTIVEC         0x10000000
-#define PPC_FEATURE_HAS_FPU             0x08000000
-#define PPC_FEATURE_HAS_MMU             0x04000000
-#define PPC_FEATURE_HAS_4xxMAC          0x02000000
-#define PPC_FEATURE_UNIFIED_CACHE       0x01000000
-#define PPC_FEATURE_HAS_SPE             0x00800000
-#define PPC_FEATURE_HAS_EFP_SINGLE      0x00400000
-#define PPC_FEATURE_HAS_EFP_DOUBLE      0x00200000
-#define PPC_FEATURE_NO_TB               0x00100000
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-/* This structure can grow, it's real size is used by head.S code
- * via the mkdefs mecanism.
- */
-struct cpu_spec;
-
-typedef void (*cpu_setup_t)(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
-
-struct cpu_spec {
-        /* CPU is matched via (PVR & pvr_mask) == pvr_value */
-        unsigned int    pvr_mask;
-        unsigned int    pvr_value;
-
-        char            *cpu_name;
-        unsigned int    cpu_features;           /* Kernel features */
-        unsigned int    cpu_user_features;      /* Userland features */
-
-        /* cache line sizes */
-        unsigned int    icache_bsize;
-        unsigned int    dcache_bsize;
-
-        /* number of performance monitor counters */
-        unsigned int    num_pmcs;
-
-        /* this is called to initialize various CPU bits like L1 cache,
-         * BHT, SPD, etc... from head.S before branching to identify_machine
-         */
-        cpu_setup_t     cpu_setup;
-};
-
-extern struct cpu_spec          cpu_specs[];
-extern struct cpu_spec          *cur_cpu_spec[];
-
-static inline unsigned int cpu_has_feature(unsigned int feature)
-{
-        return cur_cpu_spec[0]->cpu_features & feature;
-}
-
-#endif /* __ASSEMBLY__ */
-
-/* CPU kernel features */
-#define CPU_FTR_SPLIT_ID_CACHE          0x00000001
-#define CPU_FTR_L2CR                    0x00000002
-#define CPU_FTR_SPEC7450                0x00000004
-#define CPU_FTR_ALTIVEC                 0x00000008
-#define CPU_FTR_TAU                     0x00000010
-#define CPU_FTR_CAN_DOZE                0x00000020
-#define CPU_FTR_USE_TB                  0x00000040
-#define CPU_FTR_604_PERF_MON            0x00000080
-#define CPU_FTR_601                     0x00000100
-#define CPU_FTR_HPTE_TABLE              0x00000200
-#define CPU_FTR_CAN_NAP                 0x00000400
-#define CPU_FTR_L3CR                    0x00000800
-#define CPU_FTR_L3_DISABLE_NAP          0x00001000
-#define CPU_FTR_NAP_DISABLE_L2_PR       0x00002000
-#define CPU_FTR_DUAL_PLL_750FX          0x00004000
-#define CPU_FTR_NO_DPM                  0x00008000
-#define CPU_FTR_HAS_HIGH_BATS           0x00010000
-#define CPU_FTR_NEED_COHERENT           0x00020000
-#define CPU_FTR_NO_BTIC                 0x00040000
-#define CPU_FTR_BIG_PHYS                0x00080000
-
-#ifdef __ASSEMBLY__
-
-#define BEGIN_FTR_SECTION               98:
-
-#define END_FTR_SECTION(msk, val)               \
-99:                                             \
-        .section __ftr_fixup,"a";               \
-        .align 2;                               \
-        .long msk;                              \
-        .long val;                              \
-        .long 98b;                              \
-        .long 99b;                              \
-        .previous
-
-#else
-
-#define BEGIN_FTR_SECTION               "98:\n"
-#define END_FTR_SECTION(msk, val)               \
-"99:\n"                                         \
-"       .section __ftr_fixup,\"a\";\n"          \
-"       .align 2;\n"                            \
-"       .long "#msk";\n"                        \
-"       .long "#val";\n"                        \
-"       .long 98b;\n"                           \
-"       .long 99b;\n"                           \
-"       .previous\n"
-
-
-#endif /* __ASSEMBLY__ */
-
-#define END_FTR_SECTION_IFSET(msk)      END_FTR_SECTION((msk), (msk))
-#define END_FTR_SECTION_IFCLR(msk)      END_FTR_SECTION((msk), 0)
-
-#endif /* __ASM_PPC_CPUTABLE_H */
-#endif /* __KERNEL__ */
-
diff --git a/include/asm-ppc/elf.h b/include/asm-ppc/elf.h
deleted file mode 100644
index c25cc35e6ab5..000000000000
--- a/include/asm-ppc/elf.h
+++ /dev/null
@@ -1,151 +0,0 @@
-#ifndef __PPC_ELF_H
-#define __PPC_ELF_H
-
-/*
- * ELF register definitions..
- */
-#include <asm/types.h>
-#include <asm/ptrace.h>
-#include <asm/cputable.h>
-#include <asm/auxvec.h>
-
-/* PowerPC relocations defined by the ABIs */
-#define R_PPC_NONE              0
-#define R_PPC_ADDR32            1       /* 32bit absolute address */
-#define R_PPC_ADDR24            2       /* 26bit address, 2 bits ignored.  */
-#define R_PPC_ADDR16            3       /* 16bit absolute address */
-#define R_PPC_ADDR16_LO         4       /* lower 16bit of absolute address */
-#define R_PPC_ADDR16_HI         5       /* high 16bit of absolute address */
-#define R_PPC_ADDR16_HA         6       /* adjusted high 16bit */
-#define R_PPC_ADDR14            7       /* 16bit address, 2 bits ignored */
-#define R_PPC_ADDR14_BRTAKEN    8
-#define R_PPC_ADDR14_BRNTAKEN   9
-#define R_PPC_REL24             10      /* PC relative 26 bit */
-#define R_PPC_REL14             11      /* PC relative 16 bit */
-#define R_PPC_REL14_BRTAKEN     12
-#define R_PPC_REL14_BRNTAKEN    13
-#define R_PPC_GOT16             14
-#define R_PPC_GOT16_LO          15
-#define R_PPC_GOT16_HI          16
-#define R_PPC_GOT16_HA          17
-#define R_PPC_PLTREL24          18
-#define R_PPC_COPY              19
-#define R_PPC_GLOB_DAT          20
-#define R_PPC_JMP_SLOT          21
-#define R_PPC_RELATIVE          22
-#define R_PPC_LOCAL24PC         23
-#define R_PPC_UADDR32           24
-#define R_PPC_UADDR16           25
-#define R_PPC_REL32             26
-#define R_PPC_PLT32             27
-#define R_PPC_PLTREL32          28
-#define R_PPC_PLT16_LO          29
-#define R_PPC_PLT16_HI          30
-#define R_PPC_PLT16_HA          31
-#define R_PPC_SDAREL16          32
-#define R_PPC_SECTOFF           33
-#define R_PPC_SECTOFF_LO        34
-#define R_PPC_SECTOFF_HI        35
-#define R_PPC_SECTOFF_HA        36
-/* Keep this the last entry.  */
-#define R_PPC_NUM               37
-
-#define ELF_NGREG       48      /* includes nip, msr, lr, etc. */
-#define ELF_NFPREG      33      /* includes fpscr */
-#define ELF_NVRREG      33      /* includes vscr */
-#define ELF_NEVRREG     34      /* includes acc (as 2) */
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_ARCH        EM_PPC
-#define ELF_CLASS       ELFCLASS32
-#define ELF_DATA        ELFDATA2MSB
-
-/* General registers */
-typedef unsigned long elf_greg_t;
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-/* Floating point registers */
-typedef double elf_fpreg_t;
-typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
-
-/* Altivec registers */
-typedef __vector128 elf_vrreg_t;
-typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
-
-#ifdef __KERNEL__
-
-struct task_struct;
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-
-#define elf_check_arch(x) ((x)->e_machine == EM_PPC)
-
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE         (0x08000000)
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       4096
-
-#define ELF_CORE_COPY_REGS(gregs, regs)                         \
-        memcpy((gregs), (regs), sizeof(struct pt_regs));        \
-        memset((char *)(gregs) + sizeof(struct pt_regs), 0,     \
-               sizeof(elf_gregset_t) - sizeof(struct pt_regs));
-
-#define ELF_CORE_COPY_TASK_REGS(t, elfregs)                     \
-        ((t)->thread.regs?                                      \
-         ({ ELF_CORE_COPY_REGS((elfregs), (t)->thread.regs); 1; }): 0)
-
-extern int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpu);
-#define ELF_CORE_COPY_FPREGS(t, fpu)    dump_task_fpu((t), (fpu))
-
-/* This yields a mask that user programs can use to figure out what
-   instruction set this cpu supports.  This could be done in userspace,
-   but it's not easy, and we've already done it here.  */
-
-#define ELF_HWCAP       (cur_cpu_spec[0]->cpu_user_features)
-
-/* This yields a string that ld.so will use to load implementation
-   specific libraries for optimization.  This is more specific in
-   intent than poking at uname or /proc/cpuinfo.
-
-   For the moment, we have only optimizations for the Intel generations,
-   but that could change... */
-
-#define ELF_PLATFORM    (NULL)
-
-#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
-
-extern int dcache_bsize;
-extern int icache_bsize;
-extern int ucache_bsize;
-
-/*
- * The requirements here are:
- * - keep the final alignment of sp (sp & 0xf)
- * - make sure the 32-bit value at the first 16 byte aligned position of
- *   AUXV is greater than 16 for glibc compatibility.
- *   AT_IGNOREPPC is used for that.
- * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC,
- *   even if DLINFO_ARCH_ITEMS goes to zero or is undefined.
- */
-#define ARCH_DLINFO                                                     \
-do {                                                                    \
-        /* Handle glibc compatibility. */                               \
-        NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);                        \
-        NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);                        \
-        /* Cache size items */                                          \
-        NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize);                      \
-        NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize);                      \
-        NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize);                      \
- } while (0)
-
-#endif /* __KERNEL__ */
-#endif
diff --git a/include/asm-ppc/hw_irq.h b/include/asm-ppc/hw_irq.h
deleted file mode 100644
index 47dc7990fb26..000000000000
--- a/include/asm-ppc/hw_irq.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
- */
-#ifdef __KERNEL__
-#ifndef _PPC_HW_IRQ_H
-#define _PPC_HW_IRQ_H
-
-#include <asm/ptrace.h>
-#include <asm/reg.h>
-
-extern void timer_interrupt(struct pt_regs *);
-
-#define INLINE_IRQS
-
-#define irqs_disabled() ((mfmsr() & MSR_EE) == 0)
-
-#ifdef INLINE_IRQS
-
-static inline void local_irq_disable(void)
-{
-        unsigned long msr;
-        msr = mfmsr();
-        mtmsr(msr & ~MSR_EE);
-        __asm__ __volatile__("": : :"memory");
-}
-
-static inline void local_irq_enable(void)
-{
-        unsigned long msr;
-        __asm__ __volatile__("": : :"memory");
-        msr = mfmsr();
-        mtmsr(msr | MSR_EE);
-}
-
-static inline void local_irq_save_ptr(unsigned long *flags)
-{
-        unsigned long msr;
-        msr = mfmsr();
-        *flags = msr;
-        mtmsr(msr & ~MSR_EE);
-        __asm__ __volatile__("": : :"memory");
-}
-
-#define local_save_flags(flags)         ((flags) = mfmsr())
-#define local_irq_save(flags)           local_irq_save_ptr(&flags)
-#define local_irq_restore(flags)        mtmsr(flags)
-
-#else
-
-extern void local_irq_enable(void);
-extern void local_irq_disable(void);
-extern void local_irq_restore(unsigned long);
-extern void local_save_flags_ptr(unsigned long *);
-
-#define local_save_flags(flags) local_save_flags_ptr(&flags)
-#define local_irq_save(flags) ({local_save_flags(flags);local_irq_disable();})
-
-#endif
-
-extern void do_lost_interrupts(unsigned long);
-
-#define mask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->disable) irq_desc[irq].handler->disable(irq);})
-#define unmask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->enable) irq_desc[irq].handler->enable(irq);})
-#define ack_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->ack) irq_desc[irq].handler->ack(irq);})
-
-/* Should we handle this via lost interrupts and IPIs or should we don't care like
- * we do now ? --BenH.
- */
-struct hw_interrupt_type;
-static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) {}
-
-
-#endif /* _PPC_HW_IRQ_H */
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/i8259.h b/include/asm-ppc/i8259.h
deleted file mode 100644
index 091b71295de4..000000000000
--- a/include/asm-ppc/i8259.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _PPC_KERNEL_i8259_H
-#define _PPC_KERNEL_i8259_H
-
-#include <linux/irq.h>
-
-extern struct hw_interrupt_type i8259_pic;
-
-extern void i8259_init(long intack_addr);
-extern int i8259_irq(struct pt_regs *regs);
-
-#endif /* _PPC_KERNEL_i8259_H */
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index 94d83998a759..f7f614dfc648 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -8,6 +8,7 @@
 
 #include <asm/page.h>
 #include <asm/byteorder.h>
+#include <asm/synch.h>
 #include <asm/mmu.h>
 
 #define SIO_CONFIG_RA   0x398
@@ -440,16 +441,6 @@ extern inline void * phys_to_virt(unsigned long address)
 #define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
 #define page_to_bus(page)       (page_to_phys(page) + PCI_DRAM_OFFSET)
 
-/*
- * Enforce In-order Execution of I/O:
- * Acts as a barrier to ensure all previous I/O accesses have
- * completed before any further ones are issued.
- */
-extern inline void eieio(void)
-{
-        __asm__ __volatile__ ("eieio" : : : "memory");
-}
-
 /* Enforce in-order execution of data I/O.
  * No distinction between read/write on PPC; use eieio for all three.
  */
diff --git a/include/asm-ppc/kmap_types.h b/include/asm-ppc/kmap_types.h
deleted file mode 100644
index 6d6fc78731e5..000000000000
--- a/include/asm-ppc/kmap_types.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _ASM_KMAP_TYPES_H
-#define _ASM_KMAP_TYPES_H
-
-enum km_type {
-        KM_BOUNCE_READ,
-        KM_SKB_SUNRPC_DATA,
-        KM_SKB_DATA_SOFTIRQ,
-        KM_USER0,
-        KM_USER1,
-        KM_BIO_SRC_IRQ,
-        KM_BIO_DST_IRQ,
-        KM_PTE0,
-        KM_PTE1,
-        KM_IRQ0,
-        KM_IRQ1,
-        KM_SOFTIRQ0,
-        KM_SOFTIRQ1,
-        KM_PPC_SYNC_PAGE,
-        KM_PPC_SYNC_ICACHE,
-        KM_TYPE_NR
-};
-
-#endif
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/machdep.h b/include/asm-ppc/machdep.h
index 1d4ab70a56f3..f01255bd1dc3 100644
--- a/include/asm-ppc/machdep.h
+++ b/include/asm-ppc/machdep.h
@@ -98,7 +98,7 @@ struct machdep_calls {
 
         /* Get access protection for /dev/mem */
         pgprot_t        (*phys_mem_access_prot)(struct file *file,
-                                                unsigned long offset,
+                                                unsigned long pfn,
                                                 unsigned long size,
                                                 pgprot_t vma_prot);
 
@@ -167,7 +167,7 @@ extern sys_ctrler_t sys_ctrler;
 
 #ifdef CONFIG_SMP
 struct smp_ops_t {
-        void  (*message_pass)(int target, int msg, unsigned long data, int wait);
+        void  (*message_pass)(int target, int msg);
         int   (*probe)(void);
         void  (*kick_cpu)(int nr);
         void  (*setup_cpu)(int nr);
diff --git a/include/asm-ppc/mmu_context.h b/include/asm-ppc/mmu_context.h
index afe26ffc2e2d..4f152cca13c1 100644
--- a/include/asm-ppc/mmu_context.h
+++ b/include/asm-ppc/mmu_context.h
@@ -164,13 +164,11 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
                              struct task_struct *tsk)
 {
 #ifdef CONFIG_ALTIVEC
-        asm volatile (
- BEGIN_FTR_SECTION
-        "dssall;\n"
+        if (cpu_has_feature(CPU_FTR_ALTIVEC))
+        asm volatile ("dssall;\n"
 #ifndef CONFIG_POWER4
          "sync;\n" /* G4 needs a sync here, G5 apparently not */
 #endif
- END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
          : : );
 #endif /* CONFIG_ALTIVEC */
 
diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h
index 9694eca16e92..321452695039 100644
--- a/include/asm-ppc/mpc8260.h
+++ b/include/asm-ppc/mpc8260.h
@@ -92,6 +92,10 @@ enum ppc_sys_devices {
 extern unsigned char __res[];
 #endif
 
+#ifndef BOARD_CHIP_NAME
+#define BOARD_CHIP_NAME ""
+#endif
+
 #endif /* CONFIG_8260 */
 #endif /* !__ASM_PPC_MPC8260_H__ */
 #endif /* __KERNEL__ */
diff --git a/include/asm-ppc/mpc85xx.h b/include/asm-ppc/mpc85xx.h
index 516984ee14b5..d98db980cd49 100644
--- a/include/asm-ppc/mpc85xx.h
+++ b/include/asm-ppc/mpc85xx.h
@@ -67,6 +67,8 @@ extern unsigned char __res[];
 #define MPC85xx_DMA3_SIZE       (0x00080)
 #define MPC85xx_ENET1_OFFSET    (0x24000)
 #define MPC85xx_ENET1_SIZE      (0x01000)
+#define MPC85xx_MIIM_OFFSET     (0x24520)
+#define MPC85xx_MIIM_SIZE       (0x00018)
 #define MPC85xx_ENET2_OFFSET    (0x25000)
 #define MPC85xx_ENET2_SIZE      (0x01000)
 #define MPC85xx_ENET3_OFFSET    (0x26000)
@@ -132,6 +134,7 @@ enum ppc_sys_devices {
         MPC85xx_eTSEC3,
         MPC85xx_eTSEC4,
         MPC85xx_IIC2,
+        MPC85xx_MDIO,
 };
 
 /* Internal interrupts are all Level Sensitive, and Positive Polarity */
diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h
index 208a2e11daee..46f159cf589e 100644
--- a/include/asm-ppc/mpc8xx.h
+++ b/include/asm-ppc/mpc8xx.h
@@ -113,6 +113,10 @@ enum ppc_sys_devices {
         MPC8xx_CPM_USB,
 };
 
+#ifndef BOARD_CHIP_NAME
+#define BOARD_CHIP_NAME ""
+#endif
+
 #endif /* !__ASSEMBLY__ */
 #endif /* CONFIG_8xx */
 #endif /* __CONFIG_8xx_DEFS */
diff --git a/include/asm-ppc/open_pic.h b/include/asm-ppc/open_pic.h
index 7848aa610c05..ec2f46629ca2 100644
--- a/include/asm-ppc/open_pic.h
+++ b/include/asm-ppc/open_pic.h
@@ -58,8 +58,7 @@ extern int openpic_get_irq(struct pt_regs *regs);
 extern void openpic_reset_processor_phys(u_int cpumask);
 extern void openpic_setup_ISU(int isu_num, unsigned long addr);
 extern void openpic_cause_IPI(u_int ipi, cpumask_t cpumask);
-extern void smp_openpic_message_pass(int target, int msg, unsigned long data,
-                                     int wait);
+extern void smp_openpic_message_pass(int target, int msg);
 extern void openpic_set_k2_cascade(int irq);
 extern void openpic_set_priority(u_int pri);
 extern u_int openpic_get_priority(void);
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index 4789dc024240..fc44f7ca62d7 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -34,6 +34,17 @@ typedef unsigned long pte_basic_t;
 #define PTE_FMT         "%.8lx"
 #endif
 
+/* align addr on a size boundary - adjust address up/down if needed */
+#define _ALIGN_UP(addr,size)    (((addr)+((size)-1))&(~((size)-1)))
+#define _ALIGN_DOWN(addr,size)  ((addr)&(~((size)-1)))
+
+/* align addr on a size boundary - adjust address up if needed */
+#define _ALIGN(addr,size)     _ALIGN_UP(addr,size)
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)        _ALIGN(addr, PAGE_SIZE)
+
+
 #undef STRICT_MM_TYPECHECKS
 
 #ifdef STRICT_MM_TYPECHECKS
@@ -76,13 +87,6 @@ typedef unsigned long pgprot_t;
 
 #endif
 
-
-/* align addr on a size boundary - adjust address up if needed -- Cort */
-#define _ALIGN(addr,size)       (((addr)+(size)-1)&(~((size)-1)))
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
 struct page;
 extern void clear_pages(void *page, int order);
 static inline void clear_page(void *page) { clear_pages(page, 0); }
diff --git a/include/asm-ppc/pci-bridge.h b/include/asm-ppc/pci-bridge.h
index ffa423456c2b..e58c78f90a5a 100644
--- a/include/asm-ppc/pci-bridge.h
+++ b/include/asm-ppc/pci-bridge.h
@@ -79,6 +79,11 @@ struct pci_controller {
         struct resource mem_space;
 };
 
+static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
+{
+        return bus->sysdata;
+}
+
 /* These are used for config access before all the PCI probing
    has been done. */
 int early_read_config_byte(struct pci_controller *hose, int bus, int dev_fn,
diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h
index 9dd06cd40096..61434edbad7b 100644
--- a/include/asm-ppc/pci.h
+++ b/include/asm-ppc/pci.h
@@ -24,9 +24,9 @@ struct pci_dev;
  * Set this to 1 if you want the kernel to re-assign all PCI
  * bus numbers
  */
-extern int pci_assign_all_busses;
+extern int pci_assign_all_buses;
 
-#define pcibios_assign_all_busses()     (pci_assign_all_busses)
+#define pcibios_assign_all_busses()     (pci_assign_all_buses)
 #define pcibios_scan_all_fns(a, b)      0
 
 #define PCIBIOS_MIN_IO          0x1000
@@ -126,7 +126,7 @@ extern void pcibios_add_platform_entries(struct pci_dev *dev);
 
 struct file;
 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
-                                         unsigned long offset,
+                                         unsigned long pfn,
                                          unsigned long size,
                                          pgprot_t prot);
 
diff --git a/include/asm-ppc/perfmon.h b/include/asm-ppc/perfmon.h
deleted file mode 100644
index 5e7a89c47b5b..000000000000
--- a/include/asm-ppc/perfmon.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifndef __PERFMON_H
-#define __PERFMON_H
-
-extern void (*perf_irq)(struct pt_regs *);
-
-int request_perfmon_irq(void (*handler)(struct pt_regs *));
-void free_perfmon_irq(void);
-
-#ifdef CONFIG_FSL_BOOKE
-void init_pmc_stop(int ctr);
-void set_pmc_event(int ctr, int event);
-void set_pmc_user_kernel(int ctr, int user, int kernel);
-void set_pmc_marked(int ctr, int mark0, int mark1);
-void pmc_start_ctr(int ctr, int enable);
-void pmc_start_ctrs(int enable);
-void pmc_stop_ctrs(void);
-void dump_pmcs(void);
-
-extern struct op_ppc32_model op_model_fsl_booke;
-#endif
-
-#endif /* __PERFMON_H */
diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h
index eee601bb9ada..b28a713ba862 100644
--- a/include/asm-ppc/pgtable.h
+++ b/include/asm-ppc/pgtable.h
@@ -705,7 +705,7 @@ static inline void __ptep_set_access_flags(pte_t *ptep, pte_t entry, int dirty)
 #define pgprot_noncached(prot)  (__pgprot(pgprot_val(prot) | _PAGE_NO_CACHE | _PAGE_GUARDED))
 
 struct file;
-extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr,
+extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
                                      unsigned long size, pgprot_t vma_prot);
 #define __HAVE_PHYS_MEM_ACCESS_PROT
 
diff --git a/include/asm-ppc/posix_types.h b/include/asm-ppc/posix_types.h
deleted file mode 100644
index a14a82abe8d2..000000000000
--- a/include/asm-ppc/posix_types.h
+++ /dev/null
@@ -1,111 +0,0 @@
-#ifndef _PPC_POSIX_TYPES_H
-#define _PPC_POSIX_TYPES_H
-
-/*
- * This file is generally used by user-level software, so you need to
- * be a little careful about namespace pollution etc.  Also, we cannot
- * assume GCC is being used.
- */
-
-typedef unsigned long   __kernel_ino_t;
-typedef unsigned int    __kernel_mode_t;
-typedef unsigned short  __kernel_nlink_t;
-typedef long            __kernel_off_t;
-typedef int             __kernel_pid_t;
-typedef unsigned int    __kernel_uid_t;
-typedef unsigned int    __kernel_gid_t;
-typedef unsigned int    __kernel_size_t;
-typedef int             __kernel_ssize_t;
-typedef long            __kernel_ptrdiff_t;
-typedef long            __kernel_time_t;
-typedef long            __kernel_suseconds_t;
-typedef long            __kernel_clock_t;
-typedef int             __kernel_timer_t;
-typedef int             __kernel_clockid_t;
-typedef int             __kernel_daddr_t;
-typedef char *          __kernel_caddr_t;
-typedef short             __kernel_ipc_pid_t;
-typedef unsigned short  __kernel_uid16_t;
-typedef unsigned short  __kernel_gid16_t;
-typedef unsigned int    __kernel_uid32_t;
-typedef unsigned int    __kernel_gid32_t;
-
-typedef unsigned int    __kernel_old_uid_t;
-typedef unsigned int    __kernel_old_gid_t;
-typedef unsigned int    __kernel_old_dev_t;
-
-#ifdef __GNUC__
-typedef long long       __kernel_loff_t;
-#endif
-
-typedef struct {
-        int     val[2];
-} __kernel_fsid_t;
-
-#ifndef __GNUC__
-
-#define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
-#define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
-#define __FD_ISSET(d, set)      ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
-#define __FD_ZERO(set)  \
-  ((void) memset ((__ptr_t) (set), 0, sizeof (__kernel_fd_set)))
-
-#else /* __GNUC__ */
-
-#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) \
-    || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
-/* With GNU C, use inline functions instead so args are evaluated only once: */
-
-#undef __FD_SET
-static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
-{
-        unsigned long _tmp = fd / __NFDBITS;
-        unsigned long _rem = fd % __NFDBITS;
-        fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
-}
-
-#undef __FD_CLR
-static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
-{
-        unsigned long _tmp = fd / __NFDBITS;
-        unsigned long _rem = fd % __NFDBITS;
-        fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
-}
-
-#undef __FD_ISSET
-static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
-{
-        unsigned long _tmp = fd / __NFDBITS;
-        unsigned long _rem = fd % __NFDBITS;
-        return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
-}
-
-/*
- * This will unroll the loop for the normal constant case (8 ints,
- * for a 256-bit fd_set)
- */
-#undef __FD_ZERO
-static __inline__ void __FD_ZERO(__kernel_fd_set *p)
-{
-        unsigned int *tmp = (unsigned int *)p->fds_bits;
-        int i;
-
-        if (__builtin_constant_p(__FDSET_LONGS)) {
-                switch (__FDSET_LONGS) {
-                        case 8:
-                                tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
-                                tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
-                                return;
-                }
-        }
-        i = __FDSET_LONGS;
-        while (i) {
-                i--;
-                *tmp = 0;
-                tmp++;
-        }
-}
-
-#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
-#endif /* __GNUC__ */
-#endif /* _PPC_POSIX_TYPES_H */
diff --git a/include/asm-ppc/ptrace.h b/include/asm-ppc/ptrace.h
index 7043c164b537..c34fb4e37a97 100644
--- a/include/asm-ppc/ptrace.h
+++ b/include/asm-ppc/ptrace.h
@@ -57,7 +57,7 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 
 #define force_successful_syscall_return()   \
         do { \
-                current_thread_info()->local_flags |= _TIFL_FORCE_NOERROR; \
+                current_thread_info()->syscall_noerror = 1; \
         } while(0)
 
 /*
diff --git a/include/asm-ppc/rwsem.h b/include/asm-ppc/rwsem.h
deleted file mode 100644
index 3501ea72f88c..000000000000
--- a/include/asm-ppc/rwsem.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * include/asm-ppc/rwsem.h: R/W semaphores for PPC using the stuff
- * in lib/rwsem.c.  Adapted largely from include/asm-i386/rwsem.h
- * by Paul Mackerras <paulus@samba.org>.
- */
-
-#ifndef _PPC_RWSEM_H
-#define _PPC_RWSEM_H
-
-#ifdef __KERNEL__
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <asm/atomic.h>
-#include <asm/system.h>
-
-/*
- * the semaphore definition
- */
-struct rw_semaphore {
-        /* XXX this should be able to be an atomic_t  -- paulus */
-        signed long             count;
-#define RWSEM_UNLOCKED_VALUE            0x00000000
-#define RWSEM_ACTIVE_BIAS               0x00000001
-#define RWSEM_ACTIVE_MASK               0x0000ffff
-#define RWSEM_WAITING_BIAS              (-0x00010000)
-#define RWSEM_ACTIVE_READ_BIAS          RWSEM_ACTIVE_BIAS
-#define RWSEM_ACTIVE_WRITE_BIAS         (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
-        spinlock_t              wait_lock;
-        struct list_head        wait_list;
-#if RWSEM_DEBUG
-        int                     debug;
-#endif
-};
-
-/*
- * initialisation
- */
-#if RWSEM_DEBUG
-#define __RWSEM_DEBUG_INIT      , 0
-#else
-#define __RWSEM_DEBUG_INIT      /* */
-#endif
-
-#define __RWSEM_INITIALIZER(name) \
-        { RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, \
-          LIST_HEAD_INIT((name).wait_list) \
-          __RWSEM_DEBUG_INIT }
-
-#define DECLARE_RWSEM(name)             \
-        struct rw_semaphore name = __RWSEM_INITIALIZER(name)
-
-extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
-extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
-extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem);
-extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
-
-static inline void init_rwsem(struct rw_semaphore *sem)
-{
-        sem->count = RWSEM_UNLOCKED_VALUE;
-        spin_lock_init(&sem->wait_lock);
-        INIT_LIST_HEAD(&sem->wait_list);
-#if RWSEM_DEBUG
-        sem->debug = 0;
-#endif
-}
-
-/*
- * lock for reading
- */
-static inline void __down_read(struct rw_semaphore *sem)
-{
-        if (atomic_inc_return((atomic_t *)(&sem->count)) > 0)
-                smp_wmb();
-        else
-                rwsem_down_read_failed(sem);
-}
-
-static inline int __down_read_trylock(struct rw_semaphore *sem)
-{
-        int tmp;
-
-        while ((tmp = sem->count) >= 0) {
-                if (tmp == cmpxchg(&sem->count, tmp,
-                                   tmp + RWSEM_ACTIVE_READ_BIAS)) {
-                        smp_wmb();
-                        return 1;
-                }
-        }
-        return 0;
-}
-
-/*
- * lock for writing
- */
-static inline void __down_write(struct rw_semaphore *sem)
-{
-        int tmp;
-
-        tmp = atomic_add_return(RWSEM_ACTIVE_WRITE_BIAS,
-                                (atomic_t *)(&sem->count));
-        if (tmp == RWSEM_ACTIVE_WRITE_BIAS)
-                smp_wmb();
-        else
-                rwsem_down_write_failed(sem);
-}
-
-static inline int __down_write_trylock(struct rw_semaphore *sem)
-{
-        int tmp;
-
-        tmp = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,
-                      RWSEM_ACTIVE_WRITE_BIAS);
-        smp_wmb();
-        return tmp == RWSEM_UNLOCKED_VALUE;
-}
-
-/*
- * unlock after reading
- */
-static inline void __up_read(struct rw_semaphore *sem)
-{
-        int tmp;
-
-        smp_wmb();
-        tmp = atomic_dec_return((atomic_t *)(&sem->count));
-        if (tmp < -1 && (tmp & RWSEM_ACTIVE_MASK) == 0)
-                rwsem_wake(sem);
-}
-
-/*
- * unlock after writing
- */
-static inline void __up_write(struct rw_semaphore *sem)
-{
-        smp_wmb();
-        if (atomic_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
-                              (atomic_t *)(&sem->count)) < 0)
-                rwsem_wake(sem);
-}
-
-/*
- * implement atomic add functionality
- */
-static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
-{
-        atomic_add(delta, (atomic_t *)(&sem->count));
-}
-
-/*
- * downgrade write lock to read lock
- */
-static inline void __downgrade_write(struct rw_semaphore *sem)
-{
-        int tmp;
-
-        smp_wmb();
-        tmp = atomic_add_return(-RWSEM_WAITING_BIAS, (atomic_t *)(&sem->count));
-        if (tmp < 0)
-                rwsem_downgrade_wake(sem);
-}
-
-/*
- * implement exchange and add functionality
- */
-static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
-{
-        smp_mb();
-        return atomic_add_return(delta, (atomic_t *)(&sem->count));
-}
-
-static inline int rwsem_is_locked(struct rw_semaphore *sem)
-{
-        return (sem->count != 0);
-}
-
-#endif /* __KERNEL__ */
-#endif /* _PPC_RWSEM_XADD_H */
diff --git a/include/asm-ppc/scatterlist.h b/include/asm-ppc/scatterlist.h
deleted file mode 100644
index f21f18f56548..000000000000
--- a/include/asm-ppc/scatterlist.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_SCATTERLIST_H
-#define _PPC_SCATTERLIST_H
-
-#include <asm/dma.h>
-
-struct scatterlist {
-        struct page     *page;
-        unsigned int    offset;
-        dma_addr_t      dma_address;
-        unsigned int    length;
-};
-
-/*
- * These macros should be used after a pci_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns, or alternatively stop on the first sg_dma_len(sg) which
- * is 0.
- */
-#define sg_dma_address(sg)      ((sg)->dma_address)
-#define sg_dma_len(sg)          ((sg)->length)
-
-#endif /* !(_PPC_SCATTERLIST_H) */
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/seccomp.h b/include/asm-ppc/seccomp.h
deleted file mode 100644
index 666c4da96d87..000000000000
--- a/include/asm-ppc/seccomp.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_SECCOMP_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#endif /* _ASM_SECCOMP_H */
diff --git a/include/asm-ppc/sections.h b/include/asm-ppc/sections.h
deleted file mode 100644
index ba8f43ac9bf3..000000000000
--- a/include/asm-ppc/sections.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_SECTIONS_H
-#define _PPC_SECTIONS_H
-
-#include <asm-generic/sections.h>
-
-#define __pmac __attribute__ ((__section__ (".pmac.text")))
-#define __pmacdata __attribute__ ((__section__ (".pmac.data")))
-#define __pmacfunc(__argpmac) \
-        __argpmac __pmac; \
-        __argpmac
-        
-#define __prep __attribute__ ((__section__ (".prep.text")))
-#define __prepdata __attribute__ ((__section__ (".prep.data")))
-#define __prepfunc(__argprep) \
-        __argprep __prep; \
-        __argprep
-
-#define __chrp __attribute__ ((__section__ (".chrp.text")))
-#define __chrpdata __attribute__ ((__section__ (".chrp.data")))
-#define __chrpfunc(__argchrp) \
-        __argchrp __chrp; \
-        __argchrp
-
-/* this is actually just common chrp/pmac code, not OF code -- Cort */
-#define __openfirmware __attribute__ ((__section__ (".openfirmware.text")))
-#define __openfirmwaredata __attribute__ ((__section__ (".openfirmware.data")))
-#define __openfirmwarefunc(__argopenfirmware) \
-        __argopenfirmware __openfirmware; \
-        __argopenfirmware
-        
-#endif /* _PPC_SECTIONS_H */
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/semaphore.h b/include/asm-ppc/semaphore.h
deleted file mode 100644
index 89e6e73be08c..000000000000
--- a/include/asm-ppc/semaphore.h
+++ /dev/null
@@ -1,111 +0,0 @@
-#ifndef _PPC_SEMAPHORE_H
-#define _PPC_SEMAPHORE_H
-
-/*
- * Swiped from asm-sparc/semaphore.h and modified
- * -- Cort (cort@cs.nmt.edu)
- *
- * Stole some rw spinlock-based semaphore stuff from asm-alpha/semaphore.h
- * -- Ani Joshi (ajoshi@unixbox.com)
- *
- * Remove spinlock-based RW semaphores; RW semaphore definitions are
- * now in rwsem.h and we use the generic lib/rwsem.c implementation.
- * Rework semaphores to use atomic_dec_if_positive.
- * -- Paul Mackerras (paulus@samba.org)
- */
-
-#ifdef __KERNEL__
-
-#include <asm/atomic.h>
-#include <asm/system.h>
-#include <linux/wait.h>
-#include <linux/rwsem.h>
-
-struct semaphore {
-        /*
-         * Note that any negative value of count is equivalent to 0,
-         * but additionally indicates that some process(es) might be
-         * sleeping on `wait'.
-         */
-        atomic_t count;
-        wait_queue_head_t wait;
-};
-
-#define __SEMAPHORE_INITIALIZER(name, n)                                \
-{                                                                       \
-        .count          = ATOMIC_INIT(n),                               \
-        .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
-}
-
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name, 1)
-
-#define __DECLARE_SEMAPHORE_GENERIC(name, count) \
-        struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
-
-#define DECLARE_MUTEX(name)             __DECLARE_SEMAPHORE_GENERIC(name, 1)
-#define DECLARE_MUTEX_LOCKED(name)      __DECLARE_SEMAPHORE_GENERIC(name, 0)
-
-static inline void sema_init (struct semaphore *sem, int val)
-{
-        atomic_set(&sem->count, val);
-        init_waitqueue_head(&sem->wait);
-}
-
-static inline void init_MUTEX (struct semaphore *sem)
-{
-        sema_init(sem, 1);
-}
-
-static inline void init_MUTEX_LOCKED (struct semaphore *sem)
-{
-        sema_init(sem, 0);
-}
-
-extern void __down(struct semaphore * sem);
-extern int  __down_interruptible(struct semaphore * sem);
-extern void __up(struct semaphore * sem);
-
-extern inline void down(struct semaphore * sem)
-{
-        might_sleep();
-
-        /*
-         * Try to get the semaphore, take the slow path if we fail.
-         */
-        if (atomic_dec_return(&sem->count) < 0)
-                __down(sem);
-        smp_wmb();
-}
-
-extern inline int down_interruptible(struct semaphore * sem)
-{
-        int ret = 0;
-
-        might_sleep();
-
-        if (atomic_dec_return(&sem->count) < 0)
-                ret = __down_interruptible(sem);
-        smp_wmb();
-        return ret;
-}
-
-extern inline int down_trylock(struct semaphore * sem)
-{
-        int ret;
-
-        ret = atomic_dec_if_positive(&sem->count) < 0;
-        smp_wmb();
-        return ret;
-}
-
-extern inline void up(struct semaphore * sem)
-{
-        smp_wmb();
-        if (atomic_inc_return(&sem->count) <= 0)
-                __up(sem);
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* !(_PPC_SEMAPHORE_H) */
diff --git a/include/asm-ppc/smp.h b/include/asm-ppc/smp.h
index 829481c0a9dc..30e9268a888c 100644
--- a/include/asm-ppc/smp.h
+++ b/include/asm-ppc/smp.h
@@ -35,6 +35,7 @@ extern cpumask_t cpu_possible_map;
 extern unsigned long smp_proc_in_lock[];
 extern volatile unsigned long cpu_callin_map[];
 extern int smp_tb_synchronized;
+extern struct smp_ops_t *smp_ops;
 
 extern void smp_send_tlb_invalidate(int);
 extern void smp_send_xmon_break(int cpu);
@@ -45,32 +46,31 @@ extern int __cpu_disable(void);
 extern void __cpu_die(unsigned int cpu);
 extern void cpu_die(void) __attribute__((noreturn));
 
-#define NO_PROC_ID              0xFF            /* No processor magic marker */
-#define PROC_CHANGE_PENALTY     20
-
 #define raw_smp_processor_id()  (current_thread_info()->cpu)
 
 extern int __cpu_up(unsigned int cpu);
 
 extern int smp_hw_index[];
-#define hard_smp_processor_id() (smp_hw_index[smp_processor_id()])
-
-struct klock_info_struct {
-        unsigned long kernel_flag;
-        unsigned char akp;
-};
-
-extern struct klock_info_struct klock_info;
-#define KLOCK_HELD       0xffffffff
-#define KLOCK_CLEAR      0x0
-
+#define hard_smp_processor_id()         (smp_hw_index[smp_processor_id()])
+#define get_hard_smp_processor_id(cpu)  (smp_hw_index[(cpu)])
+#define set_hard_smp_processor_id(cpu, phys)\
+                                        (smp_hw_index[(cpu)] = (phys))
+ 
 #endif /* __ASSEMBLY__ */
 
 #else /* !(CONFIG_SMP) */
 
 static inline void cpu_die(void) { }
+#define get_hard_smp_processor_id(cpu) 0
+#define set_hard_smp_processor_id(cpu, phys)
+#define hard_smp_processor_id() 0
 
 #endif /* !(CONFIG_SMP) */
 
+#ifndef __ASSEMBLY__
+extern int boot_cpuid;
+extern int boot_cpuid_phys;
+#endif
+
 #endif /* !(_PPC_SMP_H) */
 #endif /* __KERNEL__ */
diff --git a/include/asm-ppc/spinlock.h b/include/asm-ppc/spinlock.h
index 20edcf2a6e0c..5c64b75f0295 100644
--- a/include/asm-ppc/spinlock.h
+++ b/include/asm-ppc/spinlock.h
@@ -9,7 +9,7 @@
  * (the type definitions are in asm/raw_spinlock_types.h)
  */
 
-#define __raw_spin_is_locked(x)         ((x)->lock != 0)
+#define __raw_spin_is_locked(x)         ((x)->slock != 0)
 #define __raw_spin_unlock_wait(lock) \
         do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0)
 #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
@@ -31,17 +31,17 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
         bne-    2b\n\
         isync"
         : "=&r"(tmp)
-        : "r"(&lock->lock), "r"(1)
+        : "r"(&lock->slock), "r"(1)
         : "cr0", "memory");
 }
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 {
         __asm__ __volatile__("eieio     # __raw_spin_unlock": : :"memory");
-        lock->lock = 0;
+        lock->slock = 0;
 }
 
-#define __raw_spin_trylock(l) (!test_and_set_bit(0,&(l)->lock))
+#define __raw_spin_trylock(l) (!test_and_set_bit(0,(volatile unsigned long *)(&(l)->slock)))
 
 /*
  * Read-write spinlocks, allowing multiple readers
diff --git a/include/asm-ppc/spinlock_types.h b/include/asm-ppc/spinlock_types.h
deleted file mode 100644
index 7919ccc75b8a..000000000000
--- a/include/asm-ppc/spinlock_types.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __ASM_SPINLOCK_TYPES_H
-#define __ASM_SPINLOCK_TYPES_H
-
-#ifndef __LINUX_SPINLOCK_TYPES_H
-# error "please don't include this file directly"
-#endif
-
-typedef struct {
-        volatile unsigned long lock;
-} raw_spinlock_t;
-
-#define __RAW_SPIN_LOCK_UNLOCKED        { 0 }
-
-typedef struct {
-        volatile signed int lock;
-} raw_rwlock_t;
-
-#define __RAW_RW_LOCK_UNLOCKED          { 0 }
-
-#endif
diff --git a/include/asm-ppc/statfs.h b/include/asm-ppc/statfs.h
deleted file mode 100644
index 807c69954a1b..000000000000
--- a/include/asm-ppc/statfs.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _PPC_STATFS_H
-#define _PPC_STATFS_H
-
-#include <asm-generic/statfs.h>
-#endif
-
-
-
diff --git a/include/asm-ppc/system.h b/include/asm-ppc/system.h
index d754ab570fe0..bd99cb53a19f 100644
--- a/include/asm-ppc/system.h
+++ b/include/asm-ppc/system.h
@@ -70,25 +70,47 @@ extern void _set_L3CR(unsigned long);
 #endif
 extern void via_cuda_init(void);
 extern void pmac_nvram_init(void);
+extern void chrp_nvram_init(void);
 extern void read_rtc_time(void);
 extern void pmac_find_display(void);
 extern void giveup_fpu(struct task_struct *);
 extern void enable_kernel_fp(void);
+extern void flush_fp_to_thread(struct task_struct *);
 extern void enable_kernel_altivec(void);
 extern void giveup_altivec(struct task_struct *);
 extern void load_up_altivec(struct task_struct *);
+extern int emulate_altivec(struct pt_regs *);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
 extern int fix_alignment(struct pt_regs *);
-extern void cvt_fd(float *from, double *to, unsigned long *fpscr);
-extern void cvt_df(double *from, float *to, unsigned long *fpscr);
+extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
+extern void cvt_df(double *from, float *to, struct thread_struct *thread);
+
+#ifdef CONFIG_ALTIVEC
+extern void flush_altivec_to_thread(struct task_struct *);
+#else
+static inline void flush_altivec_to_thread(struct task_struct *t)
+{
+}
+#endif
+
+#ifdef CONFIG_SPE
+extern void flush_spe_to_thread(struct task_struct *);
+#else
+static inline void flush_spe_to_thread(struct task_struct *t)
+{
+}
+#endif
+
 extern int call_rtas(const char *, int, int, unsigned long *, ...);
 extern void cacheable_memzero(void *p, unsigned int nb);
 extern void *cacheable_memcpy(void *, const void *, unsigned int);
 extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long);
 extern void bad_page_fault(struct pt_regs *, unsigned long, int);
-extern void die(const char *, struct pt_regs *, long);
+extern int die(const char *, struct pt_regs *, long);
 extern void _exception(int, struct pt_regs *, int, unsigned long);
+void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
+
 #ifdef CONFIG_BOOKE_WDT
 extern u32 booke_wdt_enabled;
 extern u32 booke_wdt_period;
diff --git a/include/asm-ppc/thread_info.h b/include/asm-ppc/thread_info.h
deleted file mode 100644
index 27903db42efc..000000000000
--- a/include/asm-ppc/thread_info.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* thread_info.h: PPC low-level thread information
- * adapted from the i386 version by Paul Mackerras
- *
- * Copyright (C) 2002  David Howells (dhowells@redhat.com)
- * - Incorporating suggestions made by Linus Torvalds and Dave Miller
- */
-
-#ifndef _ASM_THREAD_INFO_H
-#define _ASM_THREAD_INFO_H
-
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-/*
- * low level task data.
- * If you change this, change the TI_* offsets below to match.
- */
-struct thread_info {
-        struct task_struct      *task;          /* main task structure */
-        struct exec_domain      *exec_domain;   /* execution domain */
-        unsigned long           flags;          /* low level flags */
-        unsigned long           local_flags;    /* non-racy flags */
-        int                     cpu;            /* cpu we're on */
-        int                     preempt_count;  /* 0 => preemptable,
-                                                   <0 => BUG */
-        struct restart_block    restart_block;
-};
-
-#define INIT_THREAD_INFO(tsk)                   \
-{                                               \
-        .task =         &tsk,                   \
-        .exec_domain =  &default_exec_domain,   \
-        .flags =        0,                      \
-        .local_flags =  0,                      \
-        .cpu =          0,                      \
-        .preempt_count = 1,                     \
-        .restart_block = {                      \
-                .fn = do_no_restart_syscall,    \
-        },                                      \
-}
-
-#define init_thread_info        (init_thread_union.thread_info)
-#define init_stack              (init_thread_union.stack)
-
-/*
- * macros/functions for gaining access to the thread information structure
- */
-
-/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
-        struct thread_info *ti;
-        __asm__("rlwinm %0,1,0,0,18" : "=r"(ti));
-        return ti;
-}
-
-/* thread information allocation */
-#define alloc_thread_info(tsk) ((struct thread_info *) \
-                                __get_free_pages(GFP_KERNEL, 1))
-#define free_thread_info(ti)    free_pages((unsigned long) (ti), 1)
-#define get_thread_info(ti)     get_task_struct((ti)->task)
-#define put_thread_info(ti)     put_task_struct((ti)->task)
-#endif /* __ASSEMBLY__ */
-
-/*
- * Size of kernel stack for each process.
- */
-#define THREAD_SIZE             8192    /* 2 pages */
-
-#define PREEMPT_ACTIVE          0x10000000
-
-/*
- * thread information flag bit numbers
- */
-#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
-#define TIF_NOTIFY_RESUME       1       /* resumption notification requested */
-#define TIF_SIGPENDING          2       /* signal pending */
-#define TIF_NEED_RESCHED        3       /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG      4       /* true if poll_idle() is polling
-                                           TIF_NEED_RESCHED */
-#define TIF_MEMDIE              5
-#define TIF_SYSCALL_AUDIT       6       /* syscall auditing active */
-#define TIF_SECCOMP             7      /* secure computing */
-
-/* as above, but as bit values */
-#define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
-#define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
-#define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
-#define _TIF_SYSCALL_AUDIT      (1<<TIF_SYSCALL_AUDIT)
-#define _TIF_SECCOMP            (1<<TIF_SECCOMP)
-
-#define _TIF_SYSCALL_T_OR_A     (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
-
-/*
- * Non racy (local) flags bit numbers
- */
-#define TIFL_FORCE_NOERROR      0       /* don't return error from current
-                                           syscall even if result < 0 */
-
-/* as above, but as bit values */
-#define _TIFL_FORCE_NOERROR     (1<<TIFL_FORCE_NOERROR)
-
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_THREAD_INFO_H */
diff --git a/include/asm-ppc/types.h b/include/asm-ppc/types.h
deleted file mode 100644
index 77dc24d7d2ad..000000000000
--- a/include/asm-ppc/types.h
+++ /dev/null
@@ -1,69 +0,0 @@
-#ifndef _PPC_TYPES_H
-#define _PPC_TYPES_H
-
-#ifndef __ASSEMBLY__
-
-typedef __signed__ char __s8;
-typedef unsigned char __u8;
-
-typedef __signed__ short __s16;
-typedef unsigned short __u16;
-
-typedef __signed__ int __s32;
-typedef unsigned int __u32;
-
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
-typedef __signed__ long long __s64;
-typedef unsigned long long __u64;
-#endif
-
-typedef struct {
-        __u32 u[4];
-} __vector128;
-
-/*
- * XXX allowed outside of __KERNEL__ for now, until glibc gets
- * a proper set of asm headers of its own.  -- paulus
- */
-typedef unsigned short umode_t;
-
-#endif /* __ASSEMBLY__ */
-
-#ifdef __KERNEL__
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
-#define BITS_PER_LONG 32
-
-#ifndef __ASSEMBLY__
-
-#include <linux/config.h>
-
-typedef signed char s8;
-typedef unsigned char u8;
-
-typedef signed short s16;
-typedef unsigned short u16;
-
-typedef signed int s32;
-typedef unsigned int u32;
-
-typedef signed long long s64;
-typedef unsigned long long u64;
-
-typedef __vector128 vector128;
-
-/* DMA addresses are 32-bits wide */
-typedef u32 dma_addr_t;
-typedef u64 dma64_addr_t;
-
-#ifdef CONFIG_LBD
-typedef u64 sector_t;
-#define HAVE_SECTOR_T
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif
diff --git a/include/asm-ppc/vga.h b/include/asm-ppc/vga.h
deleted file mode 100644
index c5864734e3e1..000000000000
--- a/include/asm-ppc/vga.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- *      Access to VGA videoram
- *
- *      (c) 1998 Martin Mares <mj@ucw.cz>
- */
-
-#ifdef __KERNEL__
-#ifndef _LINUX_ASM_VGA_H_
-#define _LINUX_ASM_VGA_H_
-
-#include <asm/io.h>
-
-#include <linux/config.h>
-
-#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)
-
-#define VT_BUF_HAVE_RW
-/*
- *  These are only needed for supporting VGA or MDA text mode, which use little
- *  endian byte ordering.
- *  In other cases, we can optimize by using native byte ordering and
- *  <linux/vt_buffer.h> has already done the right job for us.
- */
-
-extern inline void scr_writew(u16 val, volatile u16 *addr)
-{
-    st_le16(addr, val);
-}
-
-extern inline u16 scr_readw(volatile const u16 *addr)
-{
-    return ld_le16(addr);
-}
-
-#define VT_BUF_HAVE_MEMCPYW
-#define scr_memcpyw     memcpy
-
-#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
-
-extern unsigned long vgacon_remap_base;
-#define VGA_MAP_MEM(x) (x + vgacon_remap_base)
-#define vga_readb(x) (*(x))
-#define vga_writeb(x,y) (*(y) = (x))
-
-#endif
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/xmon.h b/include/asm-ppc/xmon.h
deleted file mode 100644
index 042b83e6680d..000000000000
--- a/include/asm-ppc/xmon.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef __PPC_XMON_H
-#define __PPC_XMON_H
-#ifdef __KERNEL__
-
-struct pt_regs;
-
-extern void xmon(struct pt_regs *excp);
-extern void xmon_printf(const char *fmt, ...);
-extern void xmon_map_scc(void);
-extern int xmon_bpt(struct pt_regs *regs);
-extern int xmon_sstep(struct pt_regs *regs);
-extern int xmon_iabr_match(struct pt_regs *regs);
-extern int xmon_dabr_match(struct pt_regs *regs);
-extern void (*xmon_fault_handler)(struct pt_regs *regs);
-
-#endif
-#endif
diff --git a/include/asm-ppc64/abs_addr.h b/include/asm-ppc64/abs_addr.h
index 84c24d4cdb71..dc3fc3fefef2 100644
--- a/include/asm-ppc64/abs_addr.h
+++ b/include/asm-ppc64/abs_addr.h
@@ -63,4 +63,11 @@ static inline unsigned long phys_to_abs(unsigned long pa)
 #define virt_to_abs(va) phys_to_abs(__pa(va))
 #define abs_to_virt(aa) __va(aa)
 
+/*
+ * Converts Virtual Address to Real Address for
+ * Legacy iSeries Hypervisor calls
+ */
+#define iseries_hv_addr(virtaddr)       \
+        (0x8000000000000000 | virt_to_abs(virtaddr))
+
 #endif /* _ABS_ADDR_H */
diff --git a/include/asm-ppc64/atomic.h b/include/asm-ppc64/atomic.h
deleted file mode 100644
index 0e5f25e83bc0..000000000000
--- a/include/asm-ppc64/atomic.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * PowerPC64 atomic operations
- *
- * Copyright (C) 2001 Paul Mackerras <paulus@au.ibm.com>, IBM
- * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_PPC64_ATOMIC_H_ 
-#define _ASM_PPC64_ATOMIC_H_
-
-#include <asm/memory.h>
-
-typedef struct { volatile int counter; } atomic_t;
-
-#define ATOMIC_INIT(i)  { (i) }
-
-#define atomic_read(v)          ((v)->counter)
-#define atomic_set(v,i)         (((v)->counter) = (i))
-
-static __inline__ void atomic_add(int a, atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-"1:     lwarx   %0,0,%3         # atomic_add\n\
-        add     %0,%2,%0\n\
-        stwcx.  %0,0,%3\n\
-        bne-    1b"
-        : "=&r" (t), "=m" (v->counter)
-        : "r" (a), "r" (&v->counter), "m" (v->counter)
-        : "cc");
-}
-
-static __inline__ int atomic_add_return(int a, atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-        EIEIO_ON_SMP
-"1:     lwarx   %0,0,%2         # atomic_add_return\n\
-        add     %0,%1,%0\n\
-        stwcx.  %0,0,%2\n\
-        bne-    1b"
-        ISYNC_ON_SMP
-        : "=&r" (t)
-        : "r" (a), "r" (&v->counter)
-        : "cc", "memory");
-
-        return t;
-}
-
-#define atomic_add_negative(a, v)       (atomic_add_return((a), (v)) < 0)
-
-static __inline__ void atomic_sub(int a, atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-"1:     lwarx   %0,0,%3         # atomic_sub\n\
-        subf    %0,%2,%0\n\
-        stwcx.  %0,0,%3\n\
-        bne-    1b"
-        : "=&r" (t), "=m" (v->counter)
-        : "r" (a), "r" (&v->counter), "m" (v->counter)
-        : "cc");
-}
-
-static __inline__ int atomic_sub_return(int a, atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-        EIEIO_ON_SMP
-"1:     lwarx   %0,0,%2         # atomic_sub_return\n\
-        subf    %0,%1,%0\n\
-        stwcx.  %0,0,%2\n\
-        bne-    1b"
-        ISYNC_ON_SMP
-        : "=&r" (t)
-        : "r" (a), "r" (&v->counter)
-        : "cc", "memory");
-
-        return t;
-}
-
-static __inline__ void atomic_inc(atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-"1:     lwarx   %0,0,%2         # atomic_inc\n\
-        addic   %0,%0,1\n\
-        stwcx.  %0,0,%2\n\
-        bne-    1b"
-        : "=&r" (t), "=m" (v->counter)
-        : "r" (&v->counter), "m" (v->counter)
-        : "cc");
-}
-
-static __inline__ int atomic_inc_return(atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-        EIEIO_ON_SMP
-"1:     lwarx   %0,0,%1         # atomic_inc_return\n\
-        addic   %0,%0,1\n\
-        stwcx.  %0,0,%1\n\
-        bne-    1b"
-        ISYNC_ON_SMP
-        : "=&r" (t)
-        : "r" (&v->counter)
-        : "cc", "memory");
-
-        return t;
-}
-
-/*
- * atomic_inc_and_test - increment and test
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
-
-static __inline__ void atomic_dec(atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-"1:     lwarx   %0,0,%2         # atomic_dec\n\
-        addic   %0,%0,-1\n\
-        stwcx.  %0,0,%2\n\
-        bne-    1b"
-        : "=&r" (t), "=m" (v->counter)
-        : "r" (&v->counter), "m" (v->counter)
-        : "cc");
-}
-
-static __inline__ int atomic_dec_return(atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-        EIEIO_ON_SMP
-"1:     lwarx   %0,0,%1         # atomic_dec_return\n\
-        addic   %0,%0,-1\n\
-        stwcx.  %0,0,%1\n\
-        bne-    1b"
-        ISYNC_ON_SMP
-        : "=&r" (t)
-        : "r" (&v->counter)
-        : "cc", "memory");
-
-        return t;
-}
-
-#define atomic_sub_and_test(a, v)       (atomic_sub_return((a), (v)) == 0)
-#define atomic_dec_and_test(v)          (atomic_dec_return((v)) == 0)
-
-/*
- * Atomically test *v and decrement if it is greater than 0.
- * The function returns the old value of *v minus 1.
- */
-static __inline__ int atomic_dec_if_positive(atomic_t *v)
-{
-        int t;
-
-        __asm__ __volatile__(
-        EIEIO_ON_SMP
-"1:     lwarx   %0,0,%1         # atomic_dec_if_positive\n\
-        addic.  %0,%0,-1\n\
-        blt-    2f\n\
-        stwcx.  %0,0,%1\n\
-        bne-    1b"
-        ISYNC_ON_SMP
-        "\n\
-2:"     : "=&r" (t)
-        : "r" (&v->counter)
-        : "cc", "memory");
-
-        return t;
-}
-
-#define smp_mb__before_atomic_dec()     smp_mb()
-#define smp_mb__after_atomic_dec()      smp_mb()
-#define smp_mb__before_atomic_inc()     smp_mb()
-#define smp_mb__after_atomic_inc()      smp_mb()
-
-#endif /* _ASM_PPC64_ATOMIC_H_ */
diff --git a/include/asm-ppc64/bitops.h b/include/asm-ppc64/bitops.h
index a0f831224f96..dbfa42ef4a99 100644
--- a/include/asm-ppc64/bitops.h
+++ b/include/asm-ppc64/bitops.h
@@ -42,7 +42,7 @@
 
 #ifdef __KERNEL__
 
-#include <asm/memory.h>
+#include <asm/synch.h>
 
 /*
  * clear_bit doesn't imply a memory barrier
diff --git a/include/asm-ppc64/bootinfo.h b/include/asm-ppc64/bootinfo.h
deleted file mode 100644
index f55e7cb48f46..000000000000
--- a/include/asm-ppc64/bootinfo.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Non-machine dependent bootinfo structure.  Basic idea
- * borrowed from the m68k.
- *
- * Copyright (C) 1999 Cort Dougan <cort@ppc.kernel.org>
- * Copyright (c) 2001 PPC64 Team, IBM Corp 
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-
-#ifndef _PPC64_BOOTINFO_H
-#define _PPC64_BOOTINFO_H
-
-#include <asm/types.h>
-
-/* We use a u32 for the type of the fields since they're written by
- * the bootloader which is a 32-bit process and read by the kernel
- * which is a 64-bit process.  This way they can both agree on the
- * size of the type.
- */
-typedef u32 bi_rec_field;
-
-struct bi_record {
-        bi_rec_field tag;       /* tag ID */
-        bi_rec_field size;      /* size of record (in bytes) */
-        bi_rec_field data[0];   /* data */
-};
-
-#define BI_FIRST                0x1010  /* first record - marker */
-#define BI_LAST                 0x1011  /* last record - marker */
-#define BI_CMD_LINE             0x1012
-#define BI_BOOTLOADER_ID        0x1013
-#define BI_INITRD               0x1014
-#define BI_SYSMAP               0x1015
-#define BI_MACHTYPE             0x1016
-
-static __inline__ struct bi_record * bi_rec_init(unsigned long addr)
-{
-        struct bi_record *bi_recs;
-        bi_recs = (struct bi_record *)_ALIGN(addr, PAGE_SIZE);
-        bi_recs->size = 0;
-        return bi_recs;
-}
-
-static __inline__ struct bi_record * bi_rec_alloc(struct bi_record *rec,
-                                                  unsigned long args)
-{
-        rec = (struct bi_record *)((unsigned long)rec + rec->size);
-        rec->size = sizeof(struct bi_record) + args*sizeof(bi_rec_field);
-        return rec;
-}
-
-static __inline__ struct bi_record * bi_rec_alloc_bytes(struct bi_record *rec,
-                                                        unsigned long bytes)
-{
-        rec = (struct bi_record *)((unsigned long)rec + rec->size);
-        rec->size = sizeof(struct bi_record) + bytes;
-        return rec;
-}
-
-static __inline__ struct bi_record * bi_rec_next(struct bi_record *rec)
-{
-        return (struct bi_record *)((unsigned long)rec + rec->size);
-}
-
-#endif /* _PPC64_BOOTINFO_H */
diff --git a/include/asm-ppc64/btext.h b/include/asm-ppc64/btext.h
index 67aef0cc72c0..71cce36bc630 100644
--- a/include/asm-ppc64/btext.h
+++ b/include/asm-ppc64/btext.h
@@ -15,6 +15,7 @@ extern int boot_text_mapped;
 extern int btext_initialize(struct device_node *np);
 
 extern void map_boot_text(void);
+extern void init_boot_display(void);
 extern void btext_update_display(unsigned long phys, int width, int height,
                                  int depth, int pitch);
 
diff --git a/include/asm-ppc64/cputable.h b/include/asm-ppc64/cputable.h
deleted file mode 100644
index acc9b4d6c168..000000000000
--- a/include/asm-ppc64/cputable.h
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- *  include/asm-ppc64/cputable.h
- *
- *  Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- *  Modifications for ppc64:
- *      Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
- * 
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#ifndef __ASM_PPC_CPUTABLE_H
-#define __ASM_PPC_CPUTABLE_H
-
-#include <linux/config.h>
-#include <asm/page.h> /* for ASM_CONST */
-
-/* Exposed to userland CPU features - Must match ppc32 definitions */
-#define PPC_FEATURE_32                  0x80000000
-#define PPC_FEATURE_64                  0x40000000
-#define PPC_FEATURE_601_INSTR           0x20000000
-#define PPC_FEATURE_HAS_ALTIVEC         0x10000000
-#define PPC_FEATURE_HAS_FPU             0x08000000
-#define PPC_FEATURE_HAS_MMU             0x04000000
-#define PPC_FEATURE_HAS_4xxMAC          0x02000000
-#define PPC_FEATURE_UNIFIED_CACHE       0x01000000
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-/* This structure can grow, it's real size is used by head.S code
- * via the mkdefs mechanism.
- */
-struct cpu_spec;
-struct op_ppc64_model;
-
-typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
-
-struct cpu_spec {
-        /* CPU is matched via (PVR & pvr_mask) == pvr_value */
-        unsigned int    pvr_mask;
-        unsigned int    pvr_value;
-
-        char            *cpu_name;
-        unsigned long   cpu_features;           /* Kernel features */
-        unsigned int    cpu_user_features;      /* Userland features */
-
-        /* cache line sizes */
-        unsigned int    icache_bsize;
-        unsigned int    dcache_bsize;
-
-        /* number of performance monitor counters */
-        unsigned int    num_pmcs;
-
-        /* this is called to initialize various CPU bits like L1 cache,
-         * BHT, SPD, etc... from head.S before branching to identify_machine
-         */
-        cpu_setup_t     cpu_setup;
-
-        /* Used by oprofile userspace to select the right counters */
-        char            *oprofile_cpu_type;
-
-        /* Processor specific oprofile operations */
-        struct op_ppc64_model *oprofile_model;
-};
-
-extern struct cpu_spec          cpu_specs[];
-extern struct cpu_spec          *cur_cpu_spec;
-
-static inline unsigned long cpu_has_feature(unsigned long feature)
-{
-        return cur_cpu_spec->cpu_features & feature;
-}
-
-#endif /* __ASSEMBLY__ */
-
-/* CPU kernel features */
-
-/* Retain the 32b definitions for the time being - use bottom half of word */
-#define CPU_FTR_SPLIT_ID_CACHE          ASM_CONST(0x0000000000000001)
-#define CPU_FTR_L2CR                    ASM_CONST(0x0000000000000002)
-#define CPU_FTR_SPEC7450                ASM_CONST(0x0000000000000004)
-#define CPU_FTR_ALTIVEC                 ASM_CONST(0x0000000000000008)
-#define CPU_FTR_TAU                     ASM_CONST(0x0000000000000010)
-#define CPU_FTR_CAN_DOZE                ASM_CONST(0x0000000000000020)
-#define CPU_FTR_USE_TB                  ASM_CONST(0x0000000000000040)
-#define CPU_FTR_604_PERF_MON            ASM_CONST(0x0000000000000080)
-#define CPU_FTR_601                     ASM_CONST(0x0000000000000100)
-#define CPU_FTR_HPTE_TABLE              ASM_CONST(0x0000000000000200)
-#define CPU_FTR_CAN_NAP                 ASM_CONST(0x0000000000000400)
-#define CPU_FTR_L3CR                    ASM_CONST(0x0000000000000800)
-#define CPU_FTR_L3_DISABLE_NAP          ASM_CONST(0x0000000000001000)
-#define CPU_FTR_NAP_DISABLE_L2_PR       ASM_CONST(0x0000000000002000)
-#define CPU_FTR_DUAL_PLL_750FX          ASM_CONST(0x0000000000004000)
-
-/* Add the 64b processor unique features in the top half of the word */
-#define CPU_FTR_SLB                     ASM_CONST(0x0000000100000000)
-#define CPU_FTR_16M_PAGE                ASM_CONST(0x0000000200000000)
-#define CPU_FTR_TLBIEL                  ASM_CONST(0x0000000400000000)
-#define CPU_FTR_NOEXECUTE               ASM_CONST(0x0000000800000000)
-#define CPU_FTR_NODSISRALIGN            ASM_CONST(0x0000001000000000)
-#define CPU_FTR_IABR                    ASM_CONST(0x0000002000000000)
-#define CPU_FTR_MMCRA                   ASM_CONST(0x0000004000000000)
-/* unused                               ASM_CONST(0x0000008000000000) */
-#define CPU_FTR_SMT                     ASM_CONST(0x0000010000000000)
-#define CPU_FTR_COHERENT_ICACHE         ASM_CONST(0x0000020000000000)
-#define CPU_FTR_LOCKLESS_TLBIE          ASM_CONST(0x0000040000000000)
-#define CPU_FTR_MMCRA_SIHV              ASM_CONST(0x0000080000000000)
-#define CPU_FTR_CTRL                    ASM_CONST(0x0000100000000000)
-
-#ifndef __ASSEMBLY__
-
-#define COMMON_USER_PPC64       (PPC_FEATURE_32 | PPC_FEATURE_64 | \
-                                 PPC_FEATURE_HAS_FPU | PPC_FEATURE_HAS_MMU)
-
-#define CPU_FTR_PPCAS_ARCH_V2_BASE (CPU_FTR_SLB | \
-                                 CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \
-                                 CPU_FTR_NODSISRALIGN | CPU_FTR_CTRL)
-
-/* iSeries doesn't support large pages */
-#ifdef CONFIG_PPC_ISERIES
-#define CPU_FTR_PPCAS_ARCH_V2   (CPU_FTR_PPCAS_ARCH_V2_BASE)
-#else
-#define CPU_FTR_PPCAS_ARCH_V2   (CPU_FTR_PPCAS_ARCH_V2_BASE | CPU_FTR_16M_PAGE)
-#endif /* CONFIG_PPC_ISERIES */
-
-#endif /* __ASSEMBLY */
-
-#ifdef __ASSEMBLY__
-
-#define BEGIN_FTR_SECTION               98:
-
-#define END_FTR_SECTION(msk, val)               \
-99:                                             \
-        .section __ftr_fixup,"a";               \
-        .align 3;                               \
-        .llong msk;                             \
-        .llong val;                             \
-        .llong 98b;                             \
-        .llong 99b;                             \
-        .previous
-
-#else
-
-#define BEGIN_FTR_SECTION               "98:\n"
-#define END_FTR_SECTION(msk, val)               \
-"99:\n"                                         \
-"       .section __ftr_fixup,\"a\";\n"          \
-"       .align 3;\n"                            \
-"       .llong "#msk";\n"                       \
-"       .llong "#val";\n"                       \
-"       .llong 98b;\n"                          \
-"       .llong 99b;\n"                          \
-"       .previous\n"
-
-#endif /* __ASSEMBLY__ */
-
-#define END_FTR_SECTION_IFSET(msk)      END_FTR_SECTION((msk), (msk))
-#define END_FTR_SECTION_IFCLR(msk)      END_FTR_SECTION((msk), 0)
-
-#endif /* __ASM_PPC_CPUTABLE_H */
-#endif /* __KERNEL__ */
-
diff --git a/include/asm-ppc64/dart.h b/include/asm-ppc64/dart.h
new file mode 100644
index 000000000000..cdf8a2dec05f
--- /dev/null
+++ b/include/asm-ppc64/dart.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef _ASM_DART_H
+#define _ASM_DART_H
+
+
+/* physical base of DART registers */
+#define DART_BASE        0xf8033000UL
+
+/* Offset from base to control register */
+#define DARTCNTL   0
+/* Offset from base to exception register */
+#define DARTEXCP   0x10
+/* Offset from base to TLB tag registers */
+#define DARTTAG    0x1000
+
+
+/* Control Register fields */
+
+/* base address of table (pfn) */
+#define DARTCNTL_BASE_MASK    0xfffff
+#define DARTCNTL_BASE_SHIFT   12
+
+#define DARTCNTL_FLUSHTLB     0x400
+#define DARTCNTL_ENABLE       0x200
+
+/* size of table in pages */
+#define DARTCNTL_SIZE_MASK    0x1ff
+#define DARTCNTL_SIZE_SHIFT   0
+
+
+/* DART table fields */
+
+#define DARTMAP_VALID   0x80000000
+#define DARTMAP_RPNMASK 0x00ffffff
+
+
+#define DART_PAGE_SHIFT         12
+#define DART_PAGE_SIZE          (1 << DART_PAGE_SHIFT)
+#define DART_PAGE_FACTOR        (PAGE_SHIFT - DART_PAGE_SHIFT)
+
+
+#endif
diff --git a/include/asm-ppc64/dbdma.h b/include/asm-ppc64/dbdma.h
deleted file mode 100644
index f2d5d5dc3377..000000000000
--- a/include/asm-ppc64/dbdma.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/dbdma.h>
-
diff --git a/include/asm-ppc64/dma.h b/include/asm-ppc64/dma.h
deleted file mode 100644
index dfd1f69059ba..000000000000
--- a/include/asm-ppc64/dma.h
+++ /dev/null
@@ -1,329 +0,0 @@
-/* 
- * linux/include/asm/dma.h: Defines for using and allocating dma channels.
- * Written by Hennus Bergman, 1992.
- * High DMA channel support & info by Hannu Savolainen
- * and John Boyd, Nov. 1992.
- * Changes for ppc sound by Christoph Nadig
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_DMA_H
-#define _ASM_DMA_H
-
-#include <linux/config.h>
-#include <asm/io.h>
-#include <linux/spinlock.h>
-#include <asm/system.h>
-
-#ifndef MAX_DMA_CHANNELS
-#define MAX_DMA_CHANNELS        8
-#endif
-
-/* The maximum address that we can perform a DMA transfer to on this platform */
-/* Doesn't really apply... */
-#define MAX_DMA_ADDRESS  (~0UL)
-
-#if !defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI)
-
-#define dma_outb        outb
-#define dma_inb         inb
-
-/*
- * NOTES about DMA transfers:
- *
- *  controller 1: channels 0-3, byte operations, ports 00-1F
- *  controller 2: channels 4-7, word operations, ports C0-DF
- *
- *  - ALL registers are 8 bits only, regardless of transfer size
- *  - channel 4 is not used - cascades 1 into 2.
- *  - channels 0-3 are byte - addresses/counts are for physical bytes
- *  - channels 5-7 are word - addresses/counts are for physical words
- *  - transfers must not cross physical 64K (0-3) or 128K (5-7) boundaries
- *  - transfer count loaded to registers is 1 less than actual count
- *  - controller 2 offsets are all even (2x offsets for controller 1)
- *  - page registers for 5-7 don't use data bit 0, represent 128K pages
- *  - page registers for 0-3 use bit 0, represent 64K pages
- *
- * On PReP, DMA transfers are limited to the lower 16MB of _physical_ memory.  
- * On CHRP, the W83C553F (and VLSI Tollgate?) support full 32 bit addressing.
- * Note that addresses loaded into registers must be _physical_ addresses,
- * not logical addresses (which may differ if paging is active).
- *
- *  Address mapping for channels 0-3:
- *
- *   A23 ... A16 A15 ... A8  A7 ... A0    (Physical addresses)
- *    |  ...  |   |  ... |   |  ... |
- *    |  ...  |   |  ... |   |  ... |
- *    |  ...  |   |  ... |   |  ... |
- *   P7  ...  P0  A7 ... A0  A7 ... A0   
- * |    Page    | Addr MSB | Addr LSB |   (DMA registers)
- *
- *  Address mapping for channels 5-7:
- *
- *   A23 ... A17 A16 A15 ... A9 A8 A7 ... A1 A0    (Physical addresses)
- *    |  ...  |   \   \   ... \  \  \  ... \  \
- *    |  ...  |    \   \   ... \  \  \  ... \  (not used)
- *    |  ...  |     \   \   ... \  \  \  ... \
- *   P7  ...  P1 (0) A7 A6  ... A0 A7 A6 ... A0   
- * |      Page      |  Addr MSB   |  Addr LSB  |   (DMA registers)
- *
- * Again, channels 5-7 transfer _physical_ words (16 bits), so addresses
- * and counts _must_ be word-aligned (the lowest address bit is _ignored_ at
- * the hardware level, so odd-byte transfers aren't possible).
- *
- * Transfer count (_not # bytes_) is limited to 64K, represented as actual
- * count - 1 : 64K => 0xFFFF, 1 => 0x0000.  Thus, count is always 1 or more,
- * and up to 128K bytes may be transferred on channels 5-7 in one operation. 
- *
- */
-
-/* 8237 DMA controllers */
-#define IO_DMA1_BASE    0x00    /* 8 bit slave DMA, channels 0..3 */
-#define IO_DMA2_BASE    0xC0    /* 16 bit master DMA, ch 4(=slave input)..7 */
-
-/* DMA controller registers */
-#define DMA1_CMD_REG            0x08    /* command register (w) */
-#define DMA1_STAT_REG           0x08    /* status register (r) */
-#define DMA1_REQ_REG            0x09    /* request register (w) */
-#define DMA1_MASK_REG           0x0A    /* single-channel mask (w) */
-#define DMA1_MODE_REG           0x0B    /* mode register (w) */
-#define DMA1_CLEAR_FF_REG       0x0C    /* clear pointer flip-flop (w) */
-#define DMA1_TEMP_REG           0x0D    /* Temporary Register (r) */
-#define DMA1_RESET_REG          0x0D    /* Master Clear (w) */
-#define DMA1_CLR_MASK_REG       0x0E    /* Clear Mask */
-#define DMA1_MASK_ALL_REG       0x0F    /* all-channels mask (w) */
-
-#define DMA2_CMD_REG            0xD0    /* command register (w) */
-#define DMA2_STAT_REG           0xD0    /* status register (r) */
-#define DMA2_REQ_REG            0xD2    /* request register (w) */
-#define DMA2_MASK_REG           0xD4    /* single-channel mask (w) */
-#define DMA2_MODE_REG           0xD6    /* mode register (w) */
-#define DMA2_CLEAR_FF_REG       0xD8    /* clear pointer flip-flop (w) */
-#define DMA2_TEMP_REG           0xDA    /* Temporary Register (r) */
-#define DMA2_RESET_REG          0xDA    /* Master Clear (w) */
-#define DMA2_CLR_MASK_REG       0xDC    /* Clear Mask */
-#define DMA2_MASK_ALL_REG       0xDE    /* all-channels mask (w) */
-
-#define DMA_ADDR_0              0x00    /* DMA address registers */
-#define DMA_ADDR_1              0x02
-#define DMA_ADDR_2              0x04
-#define DMA_ADDR_3              0x06
-#define DMA_ADDR_4              0xC0
-#define DMA_ADDR_5              0xC4
-#define DMA_ADDR_6              0xC8
-#define DMA_ADDR_7              0xCC
-
-#define DMA_CNT_0               0x01    /* DMA count registers */
-#define DMA_CNT_1               0x03
-#define DMA_CNT_2               0x05
-#define DMA_CNT_3               0x07
-#define DMA_CNT_4               0xC2
-#define DMA_CNT_5               0xC6
-#define DMA_CNT_6               0xCA
-#define DMA_CNT_7               0xCE
-
-#define DMA_LO_PAGE_0              0x87    /* DMA page registers */
-#define DMA_LO_PAGE_1              0x83
-#define DMA_LO_PAGE_2              0x81
-#define DMA_LO_PAGE_3              0x82
-#define DMA_LO_PAGE_5              0x8B
-#define DMA_LO_PAGE_6              0x89
-#define DMA_LO_PAGE_7              0x8A
-
-#define DMA_HI_PAGE_0              0x487    /* DMA page registers */
-#define DMA_HI_PAGE_1              0x483
-#define DMA_HI_PAGE_2              0x481
-#define DMA_HI_PAGE_3              0x482
-#define DMA_HI_PAGE_5              0x48B
-#define DMA_HI_PAGE_6              0x489
-#define DMA_HI_PAGE_7              0x48A
-
-#define DMA1_EXT_REG               0x40B
-#define DMA2_EXT_REG               0x4D6
-
-#define DMA_MODE_READ   0x44    /* I/O to memory, no autoinit, increment, single mode */
-#define DMA_MODE_WRITE  0x48    /* memory to I/O, no autoinit, increment, single mode */
-#define DMA_MODE_CASCADE 0xC0   /* pass thru DREQ->HRQ, DACK<-HLDA only */
-
-#define DMA_AUTOINIT     0x10
-
-extern spinlock_t  dma_spin_lock;
-
-static __inline__ unsigned long claim_dma_lock(void)
-{
-        unsigned long flags;
-        spin_lock_irqsave(&dma_spin_lock, flags);
-        return flags;
-}
-
-static __inline__ void release_dma_lock(unsigned long flags)
-{
-        spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-/* enable/disable a specific DMA channel */
-static __inline__ void enable_dma(unsigned int dmanr)
-{
-        unsigned char ucDmaCmd=0x00;
-
-        if (dmanr != 4)
-        {
-                dma_outb(0, DMA2_MASK_REG);  /* This may not be enabled */
-                dma_outb(ucDmaCmd, DMA2_CMD_REG);  /* Enable group */
-        }
-        if (dmanr<=3)
-        {
-                dma_outb(dmanr,  DMA1_MASK_REG);
-                dma_outb(ucDmaCmd, DMA1_CMD_REG);  /* Enable group */
-        } else
-        {
-                dma_outb(dmanr & 3,  DMA2_MASK_REG);
-        }
-}
-
-static __inline__ void disable_dma(unsigned int dmanr)
-{
-        if (dmanr<=3)
-                dma_outb(dmanr | 4,  DMA1_MASK_REG);
-        else
-                dma_outb((dmanr & 3) | 4,  DMA2_MASK_REG);
-}
-
-/* Clear the 'DMA Pointer Flip Flop'.
- * Write 0 for LSB/MSB, 1 for MSB/LSB access.
- * Use this once to initialize the FF to a known state.
- * After that, keep track of it. :-)
- * --- In order to do that, the DMA routines below should ---
- * --- only be used while interrupts are disabled! ---
- */
-static __inline__ void clear_dma_ff(unsigned int dmanr)
-{
-        if (dmanr<=3)
-                dma_outb(0,  DMA1_CLEAR_FF_REG);
-        else
-                dma_outb(0,  DMA2_CLEAR_FF_REG);
-}
-
-/* set mode (above) for a specific DMA channel */
-static __inline__ void set_dma_mode(unsigned int dmanr, char mode)
-{
-        if (dmanr<=3)
-                dma_outb(mode | dmanr,  DMA1_MODE_REG);
-        else
-                dma_outb(mode | (dmanr&3),  DMA2_MODE_REG);
-}
-
-/* Set only the page register bits of the transfer address.
- * This is used for successive transfers when we know the contents of
- * the lower 16 bits of the DMA current address register, but a 64k boundary
- * may have been crossed.
- */
-static __inline__ void set_dma_page(unsigned int dmanr, int pagenr)
-{
-        switch(dmanr) {
-                case 0:
-                        dma_outb(pagenr, DMA_LO_PAGE_0);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_0);
-                        break;
-                case 1:
-                        dma_outb(pagenr, DMA_LO_PAGE_1);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_1);
-                        break;
-                case 2:
-                        dma_outb(pagenr, DMA_LO_PAGE_2);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_2); 
-                        break;
-                case 3:
-                        dma_outb(pagenr, DMA_LO_PAGE_3);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_3); 
-                        break;
-                case 5:
-                        dma_outb(pagenr & 0xfe, DMA_LO_PAGE_5);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_5);
-                        break;
-                case 6:
-                        dma_outb(pagenr & 0xfe, DMA_LO_PAGE_6);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_6);
-                        break;
-                case 7:
-                        dma_outb(pagenr & 0xfe, DMA_LO_PAGE_7);
-                        dma_outb(pagenr>>8, DMA_HI_PAGE_7);
-                  break;
-        }
-}
-
-
-/* Set transfer address & page bits for specific DMA channel.
- * Assumes dma flipflop is clear.
- */
-static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int phys)
-{
-        if (dmanr <= 3)  {
-            dma_outb( phys & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
-            dma_outb( (phys>>8) & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
-        }  else  {
-            dma_outb( (phys>>1) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
-            dma_outb( (phys>>9) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
-        }
-        set_dma_page(dmanr, phys>>16);
-}
-
-
-/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
- * a specific DMA channel.
- * You must ensure the parameters are valid.
- * NOTE: from a manual: "the number of transfers is one more
- * than the initial word count"! This is taken into account.
- * Assumes dma flip-flop is clear.
- * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
- */
-static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
-{
-        count--;
-        if (dmanr <= 3)  {
-            dma_outb( count & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
-            dma_outb( (count>>8) & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
-        } else {
-            dma_outb( (count>>1) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
-            dma_outb( (count>>9) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
-        }
-}
-
-
-/* Get DMA residue count. After a DMA transfer, this
- * should return zero. Reading this while a DMA transfer is
- * still in progress will return unpredictable results.
- * If called before the channel has been used, it may return 1.
- * Otherwise, it returns the number of _bytes_ left to transfer.
- *
- * Assumes DMA flip-flop is clear.
- */
-static __inline__ int get_dma_residue(unsigned int dmanr)
-{
-        unsigned int io_port = (dmanr<=3)? ((dmanr&3)<<1) + 1 + IO_DMA1_BASE
-                                         : ((dmanr&3)<<2) + 2 + IO_DMA2_BASE;
-
-        /* using short to get 16-bit wrap around */
-        unsigned short count;
-
-        count = 1 + dma_inb(io_port);
-        count += dma_inb(io_port) << 8;
-        
-        return (dmanr <= 3)? count : (count<<1);
-}
-
-/* These are in kernel/dma.c: */
-extern int request_dma(unsigned int dmanr, const char * device_id);     /* reserve a DMA channel */
-extern void free_dma(unsigned int dmanr);       /* release it again */
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;                                        
-#else                                                         
-#define isa_dma_bridge_buggy   (0)
-#endif
-#endif  /* !defined(CONFIG_PPC_ISERIES) || defined(CONFIG_PCI) */
-#endif /* _ASM_DMA_H */
diff --git a/include/asm-ppc64/futex.h b/include/asm-ppc64/futex.h
index cb2640b3a408..266b460de44e 100644
--- a/include/asm-ppc64/futex.h
+++ b/include/asm-ppc64/futex.h
@@ -5,7 +5,7 @@
 
 #include <linux/futex.h>
 #include <asm/errno.h>
-#include <asm/memory.h>
+#include <asm/synch.h>
 #include <asm/uaccess.h>
 
 #define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
diff --git a/include/asm-ppc64/hardirq.h b/include/asm-ppc64/hardirq.h
deleted file mode 100644
index 4ee72bb1fd48..000000000000
--- a/include/asm-ppc64/hardirq.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef __ASM_HARDIRQ_H
-#define __ASM_HARDIRQ_H
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/cache.h>
-#include <linux/preempt.h>
-
-typedef struct {
-        unsigned int __softirq_pending;
-} ____cacheline_aligned irq_cpustat_t;
-
-#include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
-
-static inline void ack_bad_irq(int irq)
-{
-        printk(KERN_CRIT "illegal vector %d received!\n", irq);
-        BUG();
-}
-
-#endif /* __ASM_HARDIRQ_H */
diff --git a/include/asm-ppc64/io.h b/include/asm-ppc64/io.h
index 59c958aea4db..bd7c9532d77b 100644
--- a/include/asm-ppc64/io.h
+++ b/include/asm-ppc64/io.h
@@ -15,7 +15,7 @@
 #ifdef CONFIG_PPC_ISERIES 
 #include <asm/iSeries/iSeries_io.h>
 #endif  
-#include <asm/memory.h>
+#include <asm/synch.h>
 #include <asm/delay.h>
 
 #include <asm-generic/iomap.h>
diff --git a/include/asm-ppc64/irq.h b/include/asm-ppc64/irq.h
deleted file mode 100644
index 99782afb4cde..000000000000
--- a/include/asm-ppc64/irq.h
+++ /dev/null
@@ -1,120 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _ASM_IRQ_H
-#define _ASM_IRQ_H
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/threads.h>
-
-/*
- * Maximum number of interrupt sources that we can handle.
- */
-#define NR_IRQS         512
-
-/* this number is used when no interrupt has been assigned */
-#define NO_IRQ                  (-1)
-
-/*
- * These constants are used for passing information about interrupt
- * signal polarity and level/edge sensing to the low-level PIC chip
- * drivers.
- */
-#define IRQ_SENSE_MASK          0x1
-#define IRQ_SENSE_LEVEL         0x1     /* interrupt on active level */
-#define IRQ_SENSE_EDGE          0x0     /* interrupt triggered by edge */
-
-#define IRQ_POLARITY_MASK       0x2
-#define IRQ_POLARITY_POSITIVE   0x2     /* high level or low->high edge */
-#define IRQ_POLARITY_NEGATIVE   0x0     /* low level or high->low edge */
-
-/*
- * IRQ line status macro IRQ_PER_CPU is used
- */
-#define ARCH_HAS_IRQ_PER_CPU
-
-#define get_irq_desc(irq) (&irq_desc[(irq)])
-
-/* Define a way to iterate across irqs. */
-#define for_each_irq(i) \
-        for ((i) = 0; (i) < NR_IRQS; ++(i))
-
-/* Interrupt numbers are virtual in case they are sparsely
- * distributed by the hardware.
- */
-extern unsigned int virt_irq_to_real_map[NR_IRQS];
-
-/* Create a mapping for a real_irq if it doesn't already exist.
- * Return the virtual irq as a convenience.
- */
-int virt_irq_create_mapping(unsigned int real_irq);
-void virt_irq_init(void);
-
-static inline unsigned int virt_irq_to_real(unsigned int virt_irq)
-{
-        return virt_irq_to_real_map[virt_irq];
-}
-
-extern unsigned int real_irq_to_virt_slowpath(unsigned int real_irq);
-
-/*
- * Because many systems have two overlapping names spaces for
- * interrupts (ISA and XICS for example), and the ISA interrupts
- * have historically not been easy to renumber, we allow ISA
- * interrupts to take values 0 - 15, and shift up the remaining
- * interrupts by 0x10.
- */
-#define NUM_ISA_INTERRUPTS      0x10
-extern int __irq_offset_value;
-
-static inline int irq_offset_up(int irq)
-{
-        return(irq + __irq_offset_value);
-}
-
-static inline int irq_offset_down(int irq)
-{
-        return(irq - __irq_offset_value);
-}
-
-static inline int irq_offset_value(void)
-{
-        return __irq_offset_value;
-}
-
-static __inline__ int irq_canonicalize(int irq)
-{
-        return irq;
-}
-
-extern int distribute_irqs;
-
-struct irqaction;
-struct pt_regs;
-
-#ifdef CONFIG_IRQSTACKS
-/*
- * Per-cpu stacks for handling hard and soft interrupts.
- */
-extern struct thread_info *hardirq_ctx[NR_CPUS];
-extern struct thread_info *softirq_ctx[NR_CPUS];
-
-extern void irq_ctx_init(void);
-extern void call_do_softirq(struct thread_info *tp);
-extern int call_handle_IRQ_event(int irq, struct pt_regs *regs,
-                        struct irqaction *action, struct thread_info *tp);
-
-#define __ARCH_HAS_DO_SOFTIRQ
-
-#else
-#define irq_ctx_init()
-
-#endif /* CONFIG_IRQSTACKS */
-
-#endif /* _ASM_IRQ_H */
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc64/keylargo.h b/include/asm-ppc64/keylargo.h
deleted file mode 100644
index 4d78e3d0314c..000000000000
--- a/include/asm-ppc64/keylargo.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/keylargo.h>
-
diff --git a/include/asm-ppc64/kmap_types.h b/include/asm-ppc64/kmap_types.h
deleted file mode 100644
index fd1574648223..000000000000
--- a/include/asm-ppc64/kmap_types.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _ASM_KMAP_TYPES_H
-#define _ASM_KMAP_TYPES_H
-
-enum km_type {
-        KM_BOUNCE_READ,
-        KM_SKB_SUNRPC_DATA,
-        KM_SKB_DATA_SOFTIRQ,
-        KM_USER0,
-        KM_USER1,
-        KM_BIO_SRC_IRQ,
-        KM_BIO_DST_IRQ,
-        KM_PTE0,
-        KM_PTE1,
-        KM_IRQ0,
-        KM_IRQ1,
-        KM_SOFTIRQ0,
-        KM_SOFTIRQ1,    
-        KM_TYPE_NR
-};
-
-#endif
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc64/macio.h b/include/asm-ppc64/macio.h
deleted file mode 100644
index a3028b364f70..000000000000
--- a/include/asm-ppc64/macio.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/macio.h>
-
diff --git a/include/asm-ppc64/memory.h b/include/asm-ppc64/memory.h
deleted file mode 100644
index af53ffb55726..000000000000
--- a/include/asm-ppc64/memory.h
+++ /dev/null
@@ -1,61 +0,0 @@
-#ifndef _ASM_PPC64_MEMORY_H_ 
-#define _ASM_PPC64_MEMORY_H_ 
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-
-/*
- * Arguably the bitops and *xchg operations don't imply any memory barrier
- * or SMP ordering, but in fact a lot of drivers expect them to imply
- * both, since they do on x86 cpus.
- */
-#ifdef CONFIG_SMP
-#define EIEIO_ON_SMP    "eieio\n"
-#define ISYNC_ON_SMP    "\n\tisync"
-#define SYNC_ON_SMP     "lwsync\n\t"
-#else
-#define EIEIO_ON_SMP
-#define ISYNC_ON_SMP
-#define SYNC_ON_SMP
-#endif
-
-static inline void eieio(void)
-{
-        __asm__ __volatile__ ("eieio" : : : "memory");
-}
-
-static inline void isync(void)
-{
-        __asm__ __volatile__ ("isync" : : : "memory");
-}
-
-#ifdef CONFIG_SMP
-#define eieio_on_smp()  eieio()
-#define isync_on_smp()  isync()
-#else
-#define eieio_on_smp()  __asm__ __volatile__("": : :"memory")
-#define isync_on_smp()  __asm__ __volatile__("": : :"memory")
-#endif
-
-/* Macros for adjusting thread priority (hardware multi-threading) */
-#define HMT_very_low()    asm volatile("or 31,31,31   # very low priority")
-#define HMT_low()       asm volatile("or 1,1,1          # low priority")
-#define HMT_medium_low()  asm volatile("or 6,6,6      # medium low priority")
-#define HMT_medium()    asm volatile("or 2,2,2          # medium priority")
-#define HMT_medium_high() asm volatile("or 5,5,5      # medium high priority")
-#define HMT_high()      asm volatile("or 3,3,3          # high priority")
-
-#define HMT_VERY_LOW    "\tor   31,31,31        # very low priority\n"
-#define HMT_LOW         "\tor   1,1,1           # low priority\n"
-#define HMT_MEDIUM_LOW  "\tor   6,6,6           # medium low priority\n"
-#define HMT_MEDIUM      "\tor   2,2,2           # medium priority\n"
-#define HMT_MEDIUM_HIGH "\tor   5,5,5           # medium high priority\n"
-#define HMT_HIGH        "\tor   3,3,3           # high priority\n"
-
-#endif
diff --git a/include/asm-ppc64/mmu.h b/include/asm-ppc64/mmu.h
index 7bc42eb087ad..e0505acb77d9 100644
--- a/include/asm-ppc64/mmu.h
+++ b/include/asm-ppc64/mmu.h
@@ -14,6 +14,7 @@
 #define _PPC64_MMU_H_
 
 #include <linux/config.h>
+#include <asm/ppc_asm.h> /* for ASM_CONST */
 #include <asm/page.h>
 
 /*
@@ -29,7 +30,7 @@
 
 /* Location of cpu0's segment table */
 #define STAB0_PAGE      0x6
-#define STAB0_PHYS_ADDR (STAB0_PAGE<<PAGE_SHIFT)
+#define STAB0_PHYS_ADDR (STAB0_PAGE<<12)
 
 #ifndef __ASSEMBLY__
 extern char initial_stab[];
@@ -205,6 +206,10 @@ extern long native_hpte_insert(unsigned long hpte_group, unsigned long va,
                                unsigned long prpn,
                                unsigned long vflags, unsigned long rflags);
 
+extern long iSeries_hpte_bolt_or_insert(unsigned long hpte_group,
+                unsigned long va, unsigned long prpn,
+                unsigned long vflags, unsigned long rflags);
+
 extern void stabs_alloc(void);
 
 #endif /* __ASSEMBLY__ */
diff --git a/include/asm-ppc64/of_device.h b/include/asm-ppc64/of_device.h
deleted file mode 100644
index 7bc136e22590..000000000000
--- a/include/asm-ppc64/of_device.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/of_device.h>
-
diff --git a/include/asm-ppc64/page.h b/include/asm-ppc64/page.h
index a15422bcf30d..d404431f0a9a 100644
--- a/include/asm-ppc64/page.h
+++ b/include/asm-ppc64/page.h
@@ -11,13 +11,7 @@
  */
 
 #include <linux/config.h>
-
-#ifdef __ASSEMBLY__
-  #define ASM_CONST(x) x
-#else
-  #define __ASM_CONST(x) x##UL
-  #define ASM_CONST(x) __ASM_CONST(x)
-#endif
+#include <asm/ppc_asm.h> /* for ASM_CONST */
 
 /* PAGE_SHIFT determines the page size */
 #define PAGE_SHIFT      12
diff --git a/include/asm-ppc64/parport.h b/include/asm-ppc64/parport.h
deleted file mode 100644
index 2f8874c581cc..000000000000
--- a/include/asm-ppc64/parport.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * parport.h: platform-specific PC-style parport initialisation
- *
- * Copyright (C) 1999, 2000  Tim Waugh <tim@cyberelk.demon.co.uk>
- *
- * This file should only be included by drivers/parport/parport_pc.c.
- */
-
-#ifndef _ASM_PPC64_PARPORT_H
-#define _ASM_PPC64_PARPORT_H
-
-static int __devinit parport_pc_find_isa_ports (int autoirq, int autodma);
-static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
-{
-        return parport_pc_find_isa_ports (autoirq, autodma);
-}
-
-#endif /* !(_ASM_PPC_PARPORT_H) */
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
index d8991389ab39..60cf8c838af0 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-ppc64/pci-bridge.h
@@ -2,7 +2,9 @@
 #ifndef _ASM_PCI_BRIDGE_H
 #define _ASM_PCI_BRIDGE_H
 
+#include <linux/config.h>
 #include <linux/pci.h>
+#include <linux/list.h>
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -34,7 +36,7 @@ struct pci_controller {
 
         struct pci_ops *ops;
         volatile unsigned int __iomem *cfg_addr;
-        volatile unsigned char __iomem *cfg_data;
+        volatile void __iomem *cfg_data;
 
         /* Currently, we limit ourselves to 1 IO range and 3 mem
          * ranges since the common pci_bus structure can't handle more
@@ -71,6 +73,12 @@ struct pci_dn {
         struct  iommu_table *iommu_table;       /* for phb's or bridges */
         struct  pci_dev *pcidev;        /* back-pointer to the pci device */
         struct  device_node *node;      /* back-pointer to the device_node */
+#ifdef CONFIG_PPC_ISERIES
+        struct  list_head Device_List;
+        int             Irq;            /* Assigned IRQ */
+        int             Flags;          /* Possible flags(disable/bist)*/
+        u8              LogicalSlot;    /* Hv Slot Index for Tces */
+#endif
         u32     config_space[16];       /* saved PCI config space */
 };
 
@@ -96,6 +104,16 @@ static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev)
         return fetch_dev_dn(dev);
 }
 
+static inline int pci_device_from_OF_node(struct device_node *np,
+                                          u8 *bus, u8 *devfn)
+{
+        if (!PCI_DN(np))
+                return -ENODEV;
+        *bus = PCI_DN(np)->busno;
+        *devfn = PCI_DN(np)->devfn;
+        return 0;
+}
+
 static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
 {
         if (bus->self)
@@ -105,7 +123,7 @@ static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
 }
 
 extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
-                                         struct device_node *dev);
+                                         struct device_node *dev, int primary);
 
 extern int pcibios_remove_root_bus(struct pci_controller *phb);
 
diff --git a/include/asm-ppc64/pci.h b/include/asm-ppc64/pci.h
index a88bbfc26967..342e2d755550 100644
--- a/include/asm-ppc64/pci.h
+++ b/include/asm-ppc64/pci.h
@@ -168,7 +168,7 @@ extern void pcibios_add_platform_entries(struct pci_dev *dev);
 
 struct file;
 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
-                                         unsigned long offset,
+                                         unsigned long pfn,
                                          unsigned long size,
                                          pgprot_t prot);
 
diff --git a/include/asm-ppc64/pgtable.h b/include/asm-ppc64/pgtable.h
index 2eb1778a3a15..8c3f574046b6 100644
--- a/include/asm-ppc64/pgtable.h
+++ b/include/asm-ppc64/pgtable.h
@@ -471,7 +471,7 @@ static inline void __ptep_set_access_flags(pte_t *ptep, pte_t entry, int dirty)
 #define pgprot_noncached(prot)  (__pgprot(pgprot_val(prot) | _PAGE_NO_CACHE | _PAGE_GUARDED))
 
 struct file;
-extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long addr,
+extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
                                      unsigned long size, pgprot_t vma_prot);
 #define __HAVE_PHYS_MEM_ACCESS_PROT
 
diff --git a/include/asm-ppc64/pmac_feature.h b/include/asm-ppc64/pmac_feature.h
deleted file mode 100644
index e07e36c4cbb2..000000000000
--- a/include/asm-ppc64/pmac_feature.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/pmac_feature.h>
-
diff --git a/include/asm-ppc64/pmac_low_i2c.h b/include/asm-ppc64/pmac_low_i2c.h
deleted file mode 100644
index 7bcfc72c5c8a..000000000000
--- a/include/asm-ppc64/pmac_low_i2c.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/pmac_low_i2c.h>
-
diff --git a/include/asm-ppc64/ppc32.h b/include/asm-ppc64/ppc32.h
index 6b44a8caf395..3945a55d112a 100644
--- a/include/asm-ppc64/ppc32.h
+++ b/include/asm-ppc64/ppc32.h
@@ -70,18 +70,18 @@ typedef struct compat_siginfo {
 #define __old_sigaction32       old_sigaction32
 
 struct __old_sigaction32 {
-        unsigned                sa_handler;
+        compat_uptr_t           sa_handler;
         compat_old_sigset_t     sa_mask;
         unsigned int            sa_flags;
-        unsigned                sa_restorer;     /* not used by Linux/SPARC yet */
+        compat_uptr_t           sa_restorer;     /* not used by Linux/SPARC yet */
 };
 
 
 
 struct sigaction32 {
-       unsigned int  sa_handler;        /* Really a pointer, but need to deal with 32 bits */
+       compat_uptr_t  sa_handler;       /* Really a pointer, but need to deal with 32 bits */
        unsigned int sa_flags;
-       unsigned int sa_restorer;        /* Another 32 bit pointer */
+       compat_uptr_t sa_restorer;       /* Another 32 bit pointer */
        compat_sigset_t sa_mask;         /* A 32 bit mask */
 };
 
@@ -94,9 +94,9 @@ typedef struct sigaltstack_32 {
 struct sigcontext32 {
         unsigned int    _unused[4];
         int             signal;
-        unsigned int    handler;
+        compat_uptr_t   handler;
         unsigned int    oldmask;
-        u32 regs;  /* 4 byte pointer to the pt_regs32 structure. */
+        compat_uptr_t   regs;  /* 4 byte pointer to the pt_regs32 structure. */
 };
 
 struct mcontext32 {
@@ -111,7 +111,7 @@ struct ucontext32 {
         unsigned int            uc_link;
         stack_32_t              uc_stack;
         int                     uc_pad[7];
-        u32                     uc_regs;        /* points to uc_mcontext field */
+        compat_uptr_t           uc_regs;        /* points to uc_mcontext field */
         compat_sigset_t         uc_sigmask;     /* mask last for extensibility */
         /* glibc has 1024-bit signal masks, ours are 64-bit */
         int                     uc_maskext[30];
diff --git a/include/asm-ppc64/ppc_asm.h b/include/asm-ppc64/ppc_asm.h
deleted file mode 100644
index 9031d8a29aca..000000000000
--- a/include/asm-ppc64/ppc_asm.h
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * arch/ppc64/kernel/ppc_asm.h
- *
- * Definitions used by various bits of low-level assembly code on PowerPC.
- *
- * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#ifndef _PPC64_PPC_ASM_H
-#define _PPC64_PPC_ASM_H
-/*
- * Macros for storing registers into and loading registers from
- * exception frames.
- */
-#define SAVE_GPR(n, base)       std     n,GPR0+8*(n)(base)
-#define SAVE_2GPRS(n, base)     SAVE_GPR(n, base); SAVE_GPR(n+1, base)
-#define SAVE_4GPRS(n, base)     SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
-#define SAVE_8GPRS(n, base)     SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
-#define SAVE_10GPRS(n, base)    SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
-#define REST_GPR(n, base)       ld      n,GPR0+8*(n)(base)
-#define REST_2GPRS(n, base)     REST_GPR(n, base); REST_GPR(n+1, base)
-#define REST_4GPRS(n, base)     REST_2GPRS(n, base); REST_2GPRS(n+2, base)
-#define REST_8GPRS(n, base)     REST_4GPRS(n, base); REST_4GPRS(n+4, base)
-#define REST_10GPRS(n, base)    REST_8GPRS(n, base); REST_2GPRS(n+8, base)
-
-#define SAVE_NVGPRS(base)       SAVE_8GPRS(14, base); SAVE_10GPRS(22, base)
-#define REST_NVGPRS(base)       REST_8GPRS(14, base); REST_10GPRS(22, base)
-
-#define SAVE_FPR(n, base)       stfd    n,THREAD_FPR0+8*(n)(base)
-#define SAVE_2FPRS(n, base)     SAVE_FPR(n, base); SAVE_FPR(n+1, base)
-#define SAVE_4FPRS(n, base)     SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
-#define SAVE_8FPRS(n, base)     SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
-#define SAVE_16FPRS(n, base)    SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
-#define SAVE_32FPRS(n, base)    SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
-#define REST_FPR(n, base)       lfd     n,THREAD_FPR0+8*(n)(base)
-#define REST_2FPRS(n, base)     REST_FPR(n, base); REST_FPR(n+1, base)
-#define REST_4FPRS(n, base)     REST_2FPRS(n, base); REST_2FPRS(n+2, base)
-#define REST_8FPRS(n, base)     REST_4FPRS(n, base); REST_4FPRS(n+4, base)
-#define REST_16FPRS(n, base)    REST_8FPRS(n, base); REST_8FPRS(n+8, base)
-#define REST_32FPRS(n, base)    REST_16FPRS(n, base); REST_16FPRS(n+16, base)
-
-#define SAVE_VR(n,b,base)       li b,THREAD_VR0+(16*(n));  stvx n,b,base
-#define SAVE_2VRS(n,b,base)     SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
-#define SAVE_4VRS(n,b,base)     SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base)
-#define SAVE_8VRS(n,b,base)     SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base)
-#define SAVE_16VRS(n,b,base)    SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base)
-#define SAVE_32VRS(n,b,base)    SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base)
-#define REST_VR(n,b,base)       li b,THREAD_VR0+(16*(n)); lvx n,b,base
-#define REST_2VRS(n,b,base)     REST_VR(n,b,base); REST_VR(n+1,b,base)
-#define REST_4VRS(n,b,base)     REST_2VRS(n,b,base); REST_2VRS(n+2,b,base)
-#define REST_8VRS(n,b,base)     REST_4VRS(n,b,base); REST_4VRS(n+4,b,base)
-#define REST_16VRS(n,b,base)    REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
-#define REST_32VRS(n,b,base)    REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
-
-/* Macros to adjust thread priority for Iseries hardware multithreading */
-#define HMT_LOW         or 1,1,1
-#define HMT_MEDIUM      or 2,2,2
-#define HMT_HIGH        or 3,3,3
-
-/* Insert the high 32 bits of the MSR into what will be the new
-   MSR (via SRR1 and rfid)  This preserves the MSR.SF and MSR.ISF
-   bits. */
-
-#define FIX_SRR1(ra, rb)        \
-        mr      rb,ra;          \
-        mfmsr   ra;             \
-        rldimi  ra,rb,0,32
-
-#define CLR_TOP32(r)    rlwinm  (r),(r),0,0,31  /* clear top 32 bits */
-
-/* 
- * LOADADDR( rn, name )
- *   loads the address of 'name' into 'rn'
- *
- * LOADBASE( rn, name )
- *   loads the address (less the low 16 bits) of 'name' into 'rn'
- *   suitable for base+disp addressing
- */
-#define LOADADDR(rn,name) \
-        lis     rn,name##@highest;      \
-        ori     rn,rn,name##@higher;    \
-        rldicr  rn,rn,32,31;            \
-        oris    rn,rn,name##@h;         \
-        ori     rn,rn,name##@l
-
-#define LOADBASE(rn,name) \
-        lis     rn,name@highest;        \
-        ori     rn,rn,name@higher;      \
-        rldicr  rn,rn,32,31;            \
-        oris    rn,rn,name@ha
-
-
-#define SET_REG_TO_CONST(reg, value)                    \
-        lis     reg,(((value)>>48)&0xFFFF);             \
-        ori     reg,reg,(((value)>>32)&0xFFFF);         \
-        rldicr  reg,reg,32,31;                          \
-        oris    reg,reg,(((value)>>16)&0xFFFF);         \
-        ori     reg,reg,((value)&0xFFFF);
-
-#define SET_REG_TO_LABEL(reg, label)                    \
-        lis     reg,(label)@highest;                    \
-        ori     reg,reg,(label)@higher;                 \
-        rldicr  reg,reg,32,31;                          \
-        oris    reg,reg,(label)@h;                      \
-        ori     reg,reg,(label)@l;
-
-
-/* PPPBBB - DRENG  If KERNELBASE is always 0xC0...,
- * Then we can easily do this with one asm insn. -Peter
- */
-#define tophys(rd,rs)                           \
-        lis     rd,((KERNELBASE>>48)&0xFFFF);   \
-        rldicr  rd,rd,32,31;                    \
-        sub     rd,rs,rd
-
-#define tovirt(rd,rs)                           \
-        lis     rd,((KERNELBASE>>48)&0xFFFF);   \
-        rldicr  rd,rd,32,31;                    \
-        add     rd,rs,rd
-
-/* Condition Register Bit Fields */
-
-#define cr0     0
-#define cr1     1
-#define cr2     2
-#define cr3     3
-#define cr4     4
-#define cr5     5
-#define cr6     6
-#define cr7     7
-
-
-/* General Purpose Registers (GPRs) */
-
-#define r0      0
-#define r1      1
-#define r2      2
-#define r3      3
-#define r4      4
-#define r5      5
-#define r6      6
-#define r7      7
-#define r8      8
-#define r9      9
-#define r10     10
-#define r11     11
-#define r12     12
-#define r13     13
-#define r14     14
-#define r15     15
-#define r16     16
-#define r17     17
-#define r18     18
-#define r19     19
-#define r20     20
-#define r21     21
-#define r22     22
-#define r23     23
-#define r24     24
-#define r25     25
-#define r26     26
-#define r27     27
-#define r28     28
-#define r29     29
-#define r30     30
-#define r31     31
-
-
-/* Floating Point Registers (FPRs) */
-
-#define fr0     0
-#define fr1     1
-#define fr2     2
-#define fr3     3
-#define fr4     4
-#define fr5     5
-#define fr6     6
-#define fr7     7
-#define fr8     8
-#define fr9     9
-#define fr10    10
-#define fr11    11
-#define fr12    12
-#define fr13    13
-#define fr14    14
-#define fr15    15
-#define fr16    16
-#define fr17    17
-#define fr18    18
-#define fr19    19
-#define fr20    20
-#define fr21    21
-#define fr22    22
-#define fr23    23
-#define fr24    24
-#define fr25    25
-#define fr26    26
-#define fr27    27
-#define fr28    28
-#define fr29    29
-#define fr30    30
-#define fr31    31
-
-#define vr0     0
-#define vr1     1
-#define vr2     2
-#define vr3     3
-#define vr4     4
-#define vr5     5
-#define vr6     6
-#define vr7     7
-#define vr8     8
-#define vr9     9
-#define vr10    10
-#define vr11    11
-#define vr12    12
-#define vr13    13
-#define vr14    14
-#define vr15    15
-#define vr16    16
-#define vr17    17
-#define vr18    18
-#define vr19    19
-#define vr20    20
-#define vr21    21
-#define vr22    22
-#define vr23    23
-#define vr24    24
-#define vr25    25
-#define vr26    26
-#define vr27    27
-#define vr28    28
-#define vr29    29
-#define vr30    30
-#define vr31    31
-
-#endif /* _PPC64_PPC_ASM_H */
diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h
deleted file mode 100644
index 4146189006e3..000000000000
--- a/include/asm-ppc64/processor.h
+++ /dev/null
@@ -1,558 +0,0 @@
-#ifndef __ASM_PPC64_PROCESSOR_H
-#define __ASM_PPC64_PROCESSOR_H
-
-/*
- * Copyright (C) 2001 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/stringify.h>
-#ifndef __ASSEMBLY__
-#include <linux/config.h>
-#include <asm/atomic.h>
-#include <asm/ppcdebug.h>
-#include <asm/a.out.h>
-#endif
-#include <asm/ptrace.h>
-#include <asm/types.h>
-#include <asm/systemcfg.h>
-#include <asm/cputable.h>
-
-/* Machine State Register (MSR) Fields */
-#define MSR_SF_LG       63              /* Enable 64 bit mode */
-#define MSR_ISF_LG      61              /* Interrupt 64b mode valid on 630 */
-#define MSR_HV_LG       60              /* Hypervisor state */
-#define MSR_VEC_LG      25              /* Enable AltiVec */
-#define MSR_POW_LG      18              /* Enable Power Management */
-#define MSR_WE_LG       18              /* Wait State Enable */
-#define MSR_TGPR_LG     17              /* TLB Update registers in use */
-#define MSR_CE_LG       17              /* Critical Interrupt Enable */
-#define MSR_ILE_LG      16              /* Interrupt Little Endian */
-#define MSR_EE_LG       15              /* External Interrupt Enable */
-#define MSR_PR_LG       14              /* Problem State / Privilege Level */
-#define MSR_FP_LG       13              /* Floating Point enable */
-#define MSR_ME_LG       12              /* Machine Check Enable */
-#define MSR_FE0_LG      11              /* Floating Exception mode 0 */
-#define MSR_SE_LG       10              /* Single Step */
-#define MSR_BE_LG       9               /* Branch Trace */
-#define MSR_DE_LG       9               /* Debug Exception Enable */
-#define MSR_FE1_LG      8               /* Floating Exception mode 1 */
-#define MSR_IP_LG       6               /* Exception prefix 0x000/0xFFF */
-#define MSR_IR_LG       5               /* Instruction Relocate */
-#define MSR_DR_LG       4               /* Data Relocate */
-#define MSR_PE_LG       3               /* Protection Enable */
-#define MSR_PX_LG       2               /* Protection Exclusive Mode */
-#define MSR_PMM_LG      2               /* Performance monitor */
-#define MSR_RI_LG       1               /* Recoverable Exception */
-#define MSR_LE_LG       0               /* Little Endian */
-
-#ifdef __ASSEMBLY__
-#define __MASK(X)       (1<<(X))
-#else
-#define __MASK(X)       (1UL<<(X))
-#endif
-
-#define MSR_SF          __MASK(MSR_SF_LG)       /* Enable 64 bit mode */
-#define MSR_ISF         __MASK(MSR_ISF_LG)      /* Interrupt 64b mode valid on 630 */
-#define MSR_HV          __MASK(MSR_HV_LG)       /* Hypervisor state */
-#define MSR_VEC         __MASK(MSR_VEC_LG)      /* Enable AltiVec */
-#define MSR_POW         __MASK(MSR_POW_LG)      /* Enable Power Management */
-#define MSR_WE          __MASK(MSR_WE_LG)       /* Wait State Enable */
-#define MSR_TGPR        __MASK(MSR_TGPR_LG)     /* TLB Update registers in use */
-#define MSR_CE          __MASK(MSR_CE_LG)       /* Critical Interrupt Enable */
-#define MSR_ILE         __MASK(MSR_ILE_LG)      /* Interrupt Little Endian */
-#define MSR_EE          __MASK(MSR_EE_LG)       /* External Interrupt Enable */
-#define MSR_PR          __MASK(MSR_PR_LG)       /* Problem State / Privilege Level */
-#define MSR_FP          __MASK(MSR_FP_LG)       /* Floating Point enable */
-#define MSR_ME          __MASK(MSR_ME_LG)       /* Machine Check Enable */
-#define MSR_FE0         __MASK(MSR_FE0_LG)      /* Floating Exception mode 0 */
-#define MSR_SE          __MASK(MSR_SE_LG)       /* Single Step */
-#define MSR_BE          __MASK(MSR_BE_LG)       /* Branch Trace */
-#define MSR_DE          __MASK(MSR_DE_LG)       /* Debug Exception Enable */
-#define MSR_FE1         __MASK(MSR_FE1_LG)      /* Floating Exception mode 1 */
-#define MSR_IP          __MASK(MSR_IP_LG)       /* Exception prefix 0x000/0xFFF */
-#define MSR_IR          __MASK(MSR_IR_LG)       /* Instruction Relocate */
-#define MSR_DR          __MASK(MSR_DR_LG)       /* Data Relocate */
-#define MSR_PE          __MASK(MSR_PE_LG)       /* Protection Enable */
-#define MSR_PX          __MASK(MSR_PX_LG)       /* Protection Exclusive Mode */
-#define MSR_PMM         __MASK(MSR_PMM_LG)      /* Performance monitor */
-#define MSR_RI          __MASK(MSR_RI_LG)       /* Recoverable Exception */
-#define MSR_LE          __MASK(MSR_LE_LG)       /* Little Endian */
-
-#define MSR_            MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF
-#define MSR_KERNEL      MSR_ | MSR_SF | MSR_HV
-
-#define MSR_USER32      MSR_ | MSR_PR | MSR_EE
-#define MSR_USER64      MSR_USER32 | MSR_SF
-
-/* Floating Point Status and Control Register (FPSCR) Fields */
-
-#define FPSCR_FX        0x80000000      /* FPU exception summary */
-#define FPSCR_FEX       0x40000000      /* FPU enabled exception summary */
-#define FPSCR_VX        0x20000000      /* Invalid operation summary */
-#define FPSCR_OX        0x10000000      /* Overflow exception summary */
-#define FPSCR_UX        0x08000000      /* Underflow exception summary */
-#define FPSCR_ZX        0x04000000      /* Zero-divide exception summary */
-#define FPSCR_XX        0x02000000      /* Inexact exception summary */
-#define FPSCR_VXSNAN    0x01000000      /* Invalid op for SNaN */
-#define FPSCR_VXISI     0x00800000      /* Invalid op for Inv - Inv */
-#define FPSCR_VXIDI     0x00400000      /* Invalid op for Inv / Inv */
-#define FPSCR_VXZDZ     0x00200000      /* Invalid op for Zero / Zero */
-#define FPSCR_VXIMZ     0x00100000      /* Invalid op for Inv * Zero */
-#define FPSCR_VXVC      0x00080000      /* Invalid op for Compare */
-#define FPSCR_FR        0x00040000      /* Fraction rounded */
-#define FPSCR_FI        0x00020000      /* Fraction inexact */
-#define FPSCR_FPRF      0x0001f000      /* FPU Result Flags */
-#define FPSCR_FPCC      0x0000f000      /* FPU Condition Codes */
-#define FPSCR_VXSOFT    0x00000400      /* Invalid op for software request */
-#define FPSCR_VXSQRT    0x00000200      /* Invalid op for square root */
-#define FPSCR_VXCVI     0x00000100      /* Invalid op for integer convert */
-#define FPSCR_VE        0x00000080      /* Invalid op exception enable */
-#define FPSCR_OE        0x00000040      /* IEEE overflow exception enable */
-#define FPSCR_UE        0x00000020      /* IEEE underflow exception enable */
-#define FPSCR_ZE        0x00000010      /* IEEE zero divide exception enable */
-#define FPSCR_XE        0x00000008      /* FP inexact exception enable */
-#define FPSCR_NI        0x00000004      /* FPU non IEEE-Mode */
-#define FPSCR_RN        0x00000003      /* FPU rounding control */
-
-/* Special Purpose Registers (SPRNs)*/
-
-#define SPRN_CTR        0x009   /* Count Register */
-#define SPRN_DABR       0x3F5   /* Data Address Breakpoint Register */
-#define   DABR_TRANSLATION      (1UL << 2)
-#define SPRN_DAR        0x013   /* Data Address Register */
-#define SPRN_DEC        0x016   /* Decrement Register */
-#define SPRN_DSISR      0x012   /* Data Storage Interrupt Status Register */
-#define   DSISR_NOHPTE          0x40000000      /* no translation found */
-#define   DSISR_PROTFAULT       0x08000000      /* protection fault */
-#define   DSISR_ISSTORE         0x02000000      /* access was a store */
-#define   DSISR_DABRMATCH       0x00400000      /* hit data breakpoint */
-#define   DSISR_NOSEGMENT       0x00200000      /* STAB/SLB miss */
-#define SPRN_HID0       0x3F0   /* Hardware Implementation Register 0 */
-#define SPRN_MSRDORM    0x3F1   /* Hardware Implementation Register 1 */
-#define SPRN_HID1       0x3F1   /* Hardware Implementation Register 1 */
-#define SPRN_IABR       0x3F2   /* Instruction Address Breakpoint Register */
-#define SPRN_NIADORM    0x3F3   /* Hardware Implementation Register 2 */
-#define SPRN_HID4       0x3F4   /* 970 HID4 */
-#define SPRN_HID5       0x3F6   /* 970 HID5 */
-#define SPRN_HID6       0x3F9   /* BE HID 6 */
-#define   HID6_LB       (0x0F<<12) /* Concurrent Large Page Modes */
-#define   HID6_DLP      (1<<20) /* Disable all large page modes (4K only) */
-#define SPRN_TSCR       0x399   /* Thread switch control on BE */
-#define SPRN_TTR        0x39A   /* Thread switch timeout on BE */
-#define   TSCR_DEC_ENABLE       0x200000 /* Decrementer Interrupt */
-#define   TSCR_EE_ENABLE        0x100000 /* External Interrupt */
-#define   TSCR_EE_BOOST         0x080000 /* External Interrupt Boost */
-#define SPRN_TSC        0x3FD   /* Thread switch control on others */
-#define SPRN_TST        0x3FC   /* Thread switch timeout on others */
-#define SPRN_L2CR       0x3F9   /* Level 2 Cache Control Regsiter */
-#define SPRN_LR         0x008   /* Link Register */
-#define SPRN_PIR        0x3FF   /* Processor Identification Register */
-#define SPRN_PIT        0x3DB   /* Programmable Interval Timer */
-#define SPRN_PURR       0x135   /* Processor Utilization of Resources Register */
-#define SPRN_PVR        0x11F   /* Processor Version Register */
-#define SPRN_RPA        0x3D6   /* Required Physical Address Register */
-#define SPRN_SDA        0x3BF   /* Sampled Data Address Register */
-#define SPRN_SDR1       0x019   /* MMU Hash Base Register */
-#define SPRN_SIA        0x3BB   /* Sampled Instruction Address Register */
-#define SPRN_SPRG0      0x110   /* Special Purpose Register General 0 */
-#define SPRN_SPRG1      0x111   /* Special Purpose Register General 1 */
-#define SPRN_SPRG2      0x112   /* Special Purpose Register General 2 */
-#define SPRN_SPRG3      0x113   /* Special Purpose Register General 3 */
-#define SPRN_SRR0       0x01A   /* Save/Restore Register 0 */
-#define SPRN_SRR1       0x01B   /* Save/Restore Register 1 */
-#define SPRN_TBRL       0x10C   /* Time Base Read Lower Register (user, R/O) */
-#define SPRN_TBRU       0x10D   /* Time Base Read Upper Register (user, R/O) */
-#define SPRN_TBWL       0x11C   /* Time Base Lower Register (super, W/O) */
-#define SPRN_TBWU       0x11D   /* Time Base Write Upper Register (super, W/O) */
-#define SPRN_HIOR       0x137   /* 970 Hypervisor interrupt offset */
-#define SPRN_USIA       0x3AB   /* User Sampled Instruction Address Register */
-#define SPRN_XER        0x001   /* Fixed Point Exception Register */
-#define SPRN_VRSAVE     0x100   /* Vector save */
-#define SPRN_CTRLF      0x088
-#define SPRN_CTRLT      0x098
-#define   CTRL_RUNLATCH 0x1
-
-/* Performance monitor SPRs */
-#define SPRN_SIAR       780
-#define SPRN_SDAR       781
-#define SPRN_MMCRA      786
-#define   MMCRA_SIHV    0x10000000UL /* state of MSR HV when SIAR set */
-#define   MMCRA_SIPR    0x08000000UL /* state of MSR PR when SIAR set */
-#define   MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
-#define SPRN_PMC1       787
-#define SPRN_PMC2       788
-#define SPRN_PMC3       789
-#define SPRN_PMC4       790
-#define SPRN_PMC5       791
-#define SPRN_PMC6       792
-#define SPRN_PMC7       793
-#define SPRN_PMC8       794
-#define SPRN_MMCR0      795
-#define   MMCR0_FC      0x80000000UL /* freeze counters. set to 1 on a perfmon exception */
-#define   MMCR0_FCS     0x40000000UL /* freeze in supervisor state */
-#define   MMCR0_KERNEL_DISABLE MMCR0_FCS
-#define   MMCR0_FCP     0x20000000UL /* freeze in problem state */
-#define   MMCR0_PROBLEM_DISABLE MMCR0_FCP
-#define   MMCR0_FCM1    0x10000000UL /* freeze counters while MSR mark = 1 */
-#define   MMCR0_FCM0    0x08000000UL /* freeze counters while MSR mark = 0 */
-#define   MMCR0_PMXE    0x04000000UL /* performance monitor exception enable */
-#define   MMCR0_FCECE   0x02000000UL /* freeze counters on enabled condition or event */
-/* time base exception enable */
-#define   MMCR0_TBEE    0x00400000UL /* time base exception enable */
-#define   MMCR0_PMC1CE  0x00008000UL /* PMC1 count enable*/
-#define   MMCR0_PMCjCE  0x00004000UL /* PMCj count enable*/
-#define   MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */
-#define   MMCR0_PMAO    0x00000080UL /* performance monitor alert has occurred, set to 0 after handling exception */
-#define   MMCR0_SHRFC   0x00000040UL /* SHRre freeze conditions between threads */
-#define   MMCR0_FCTI    0x00000008UL /* freeze counters in tags inactive mode */
-#define   MMCR0_FCTA    0x00000004UL /* freeze counters in tags active mode */
-#define   MMCR0_FCWAIT  0x00000002UL /* freeze counter in WAIT state */
-#define   MMCR0_FCHV    0x00000001UL /* freeze conditions in hypervisor mode */
-#define SPRN_MMCR1      798
-
-/* Short-hand versions for a number of the above SPRNs */
-
-#define CTR     SPRN_CTR        /* Counter Register */
-#define DAR     SPRN_DAR        /* Data Address Register */
-#define DABR    SPRN_DABR       /* Data Address Breakpoint Register */
-#define DEC     SPRN_DEC        /* Decrement Register */
-#define DSISR   SPRN_DSISR      /* Data Storage Interrupt Status Register */
-#define HID0    SPRN_HID0       /* Hardware Implementation Register 0 */
-#define MSRDORM SPRN_MSRDORM    /* MSR Dormant Register */
-#define NIADORM SPRN_NIADORM    /* NIA Dormant Register */
-#define TSC     SPRN_TSC        /* Thread switch control */
-#define TST     SPRN_TST        /* Thread switch timeout */
-#define IABR    SPRN_IABR       /* Instruction Address Breakpoint Register */
-#define L2CR    SPRN_L2CR       /* PPC 750 L2 control register */
-#define __LR    SPRN_LR
-#define PVR     SPRN_PVR        /* Processor Version */
-#define PIR     SPRN_PIR        /* Processor ID */
-#define PURR    SPRN_PURR       /* Processor Utilization of Resource Register */
-#define SDR1    SPRN_SDR1       /* MMU hash base register */
-#define SPR0    SPRN_SPRG0      /* Supervisor Private Registers */
-#define SPR1    SPRN_SPRG1
-#define SPR2    SPRN_SPRG2
-#define SPR3    SPRN_SPRG3
-#define SPRG0   SPRN_SPRG0
-#define SPRG1   SPRN_SPRG1
-#define SPRG2   SPRN_SPRG2
-#define SPRG3   SPRN_SPRG3
-#define SRR0    SPRN_SRR0       /* Save and Restore Register 0 */
-#define SRR1    SPRN_SRR1       /* Save and Restore Register 1 */
-#define TBRL    SPRN_TBRL       /* Time Base Read Lower Register */
-#define TBRU    SPRN_TBRU       /* Time Base Read Upper Register */
-#define TBWL    SPRN_TBWL       /* Time Base Write Lower Register */
-#define TBWU    SPRN_TBWU       /* Time Base Write Upper Register */
-#define XER     SPRN_XER
-
-/* Processor Version Register (PVR) field extraction */
-
-#define PVR_VER(pvr)  (((pvr) >>  16) & 0xFFFF) /* Version field */
-#define PVR_REV(pvr)  (((pvr) >>   0) & 0xFFFF) /* Revison field */
-
-/* Processor Version Numbers */
-#define PV_NORTHSTAR    0x0033
-#define PV_PULSAR       0x0034
-#define PV_POWER4       0x0035
-#define PV_ICESTAR      0x0036
-#define PV_SSTAR        0x0037
-#define PV_POWER4p      0x0038
-#define PV_970          0x0039
-#define PV_POWER5       0x003A
-#define PV_POWER5p      0x003B
-#define PV_970FX        0x003C
-#define PV_630          0x0040
-#define PV_630p         0x0041
-#define PV_970MP        0x0044
-#define PV_BE           0x0070
-
-/* Platforms supported by PPC64 */
-#define PLATFORM_PSERIES      0x0100
-#define PLATFORM_PSERIES_LPAR 0x0101
-#define PLATFORM_ISERIES_LPAR 0x0201
-#define PLATFORM_LPAR         0x0001
-#define PLATFORM_POWERMAC     0x0400
-#define PLATFORM_MAPLE        0x0500
-#define PLATFORM_BPA          0x1000
-
-/* Compatibility with drivers coming from PPC32 world */
-#define _machine        (systemcfg->platform)
-#define _MACH_Pmac      PLATFORM_POWERMAC
-
-/*
- * List of interrupt controllers.
- */
-#define IC_INVALID    0
-#define IC_OPEN_PIC   1
-#define IC_PPC_XIC    2
-#define IC_BPA_IIC    3
-
-#define XGLUE(a,b) a##b
-#define GLUE(a,b) XGLUE(a,b)
-
-#ifdef __ASSEMBLY__
-
-#define _GLOBAL(name) \
-        .section ".text"; \
-        .align 2 ; \
-        .globl name; \
-        .globl GLUE(.,name); \
-        .section ".opd","aw"; \
-name: \
-        .quad GLUE(.,name); \
-        .quad .TOC.@tocbase; \
-        .quad 0; \
-        .previous; \
-        .type GLUE(.,name),@function; \
-GLUE(.,name):
-
-#define _KPROBE(name) \
-        .section ".kprobes.text","a"; \
-        .align 2 ; \
-        .globl name; \
-        .globl GLUE(.,name); \
-        .section ".opd","aw"; \
-name: \
-        .quad GLUE(.,name); \
-        .quad .TOC.@tocbase; \
-        .quad 0; \
-        .previous; \
-        .type GLUE(.,name),@function; \
-GLUE(.,name):
-
-#define _STATIC(name) \
-        .section ".text"; \
-        .align 2 ; \
-        .section ".opd","aw"; \
-name: \
-        .quad GLUE(.,name); \
-        .quad .TOC.@tocbase; \
-        .quad 0; \
-        .previous; \
-        .type GLUE(.,name),@function; \
-GLUE(.,name):
-
-#else /* __ASSEMBLY__ */
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
-/* Macros for setting and retrieving special purpose registers */
-
-#define mfmsr()         ({unsigned long rval; \
-                        asm volatile("mfmsr %0" : "=r" (rval)); rval;})
-
-#define __mtmsrd(v, l)  asm volatile("mtmsrd %0," __stringify(l) \
-                                     : : "r" (v))
-#define mtmsrd(v)       __mtmsrd((v), 0)
-
-#define mfspr(rn)       ({unsigned long rval; \
-                        asm volatile("mfspr %0," __stringify(rn) \
-                                     : "=r" (rval)); rval;})
-#define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))
-
-#define mftb()          ({unsigned long rval;   \
-                        asm volatile("mftb %0" : "=r" (rval)); rval;})
-
-#define mttbl(v)        asm volatile("mttbl %0":: "r"(v))
-#define mttbu(v)        asm volatile("mttbu %0":: "r"(v))
-
-#define mfasr()         ({unsigned long rval; \
-                        asm volatile("mfasr %0" : "=r" (rval)); rval;})
-
-static inline void set_tb(unsigned int upper, unsigned int lower)
-{
-        mttbl(0);
-        mttbu(upper);
-        mttbl(lower);
-}
-
-#define __get_SP()      ({unsigned long sp; \
-                        asm volatile("mr %0,1": "=r" (sp)); sp;})
-
-#ifdef __KERNEL__
-
-extern int have_of;
-extern u64 ppc64_interrupt_controller;
-
-struct task_struct;
-void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp);
-void release_thread(struct task_struct *);
-
-/* Prepare to copy thread state - unlazy all lazy status */
-extern void prepare_to_copy(struct task_struct *tsk);
-
-/* Create a new kernel thread. */
-extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
-
-/* Lazy FPU handling on uni-processor */
-extern struct task_struct *last_task_used_math;
-extern struct task_struct *last_task_used_altivec;
-
-/* 64-bit user address space is 44-bits (16TB user VM) */
-#define TASK_SIZE_USER64 (0x0000100000000000UL)
-
-/* 
- * 32-bit user address space is 4GB - 1 page 
- * (this 1 page is needed so referencing of 0xFFFFFFFF generates EFAULT
- */
-#define TASK_SIZE_USER32 (0x0000000100000000UL - (1*PAGE_SIZE))
-
-#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
-                TASK_SIZE_USER32 : TASK_SIZE_USER64)
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define TASK_UNMAPPED_BASE_USER32 (PAGE_ALIGN(TASK_SIZE_USER32 / 4))
-#define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(TASK_SIZE_USER64 / 4))
-
-#define TASK_UNMAPPED_BASE ((test_thread_flag(TIF_32BIT)||(ppcdebugset(PPCDBG_BINFMT_32ADDR))) ? \
-                TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 )
-
-typedef struct {
-        unsigned long seg;
-} mm_segment_t;
-
-struct thread_struct {
-        unsigned long   ksp;            /* Kernel stack pointer */
-        unsigned long   ksp_vsid;
-        struct pt_regs  *regs;          /* Pointer to saved register state */
-        mm_segment_t    fs;             /* for get_fs() validation */
-        double          fpr[32];        /* Complete floating point set */
-        unsigned long   fpscr;          /* Floating point status (plus pad) */
-        unsigned long   fpexc_mode;     /* Floating-point exception mode */
-        unsigned long   start_tb;       /* Start purr when proc switched in */
-        unsigned long   accum_tb;       /* Total accumilated purr for process */
-        unsigned long   vdso_base;      /* base of the vDSO library */
-        unsigned long   dabr;           /* Data address breakpoint register */
-#ifdef CONFIG_ALTIVEC
-        /* Complete AltiVec register set */
-        vector128       vr[32] __attribute((aligned(16)));
-        /* AltiVec status */
-        vector128       vscr __attribute((aligned(16)));
-        unsigned long   vrsave;
-        int             used_vr;        /* set if process has used altivec */
-#endif /* CONFIG_ALTIVEC */
-};
-
-#define ARCH_MIN_TASKALIGN 16
-
-#define INIT_SP         (sizeof(init_stack) + (unsigned long) &init_stack)
-
-#define INIT_THREAD  { \
-        .ksp = INIT_SP, \
-        .regs = (struct pt_regs *)INIT_SP - 1, \
-        .fs = KERNEL_DS, \
-        .fpr = {0}, \
-        .fpscr = 0, \
-        .fpexc_mode = MSR_FE0|MSR_FE1, \
-}
-
-/*
- * Return saved PC of a blocked thread. For now, this is the "user" PC
- */
-#define thread_saved_pc(tsk)    \
-        ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
-
-unsigned long get_wchan(struct task_struct *p);
-
-#define KSTK_EIP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0)
-#define KSTK_ESP(tsk)  ((tsk)->thread.regs? (tsk)->thread.regs->gpr[1]: 0)
-
-/* Get/set floating-point exception mode */
-#define GET_FPEXC_CTL(tsk, adr) get_fpexc_mode((tsk), (adr))
-#define SET_FPEXC_CTL(tsk, val) set_fpexc_mode((tsk), (val))
-
-extern int get_fpexc_mode(struct task_struct *tsk, unsigned long adr);
-extern int set_fpexc_mode(struct task_struct *tsk, unsigned int val);
-
-static inline unsigned int __unpack_fe01(unsigned long msr_bits)
-{
-        return ((msr_bits & MSR_FE0) >> 10) | ((msr_bits & MSR_FE1) >> 8);
-}
-
-static inline unsigned long __pack_fe01(unsigned int fpmode)
-{
-        return ((fpmode << 10) & MSR_FE0) | ((fpmode << 8) & MSR_FE1);
-}
-
-#define cpu_relax()     do { HMT_low(); HMT_medium(); barrier(); } while (0)
-
-/*
- * Prefetch macros.
- */
-#define ARCH_HAS_PREFETCH
-#define ARCH_HAS_PREFETCHW
-#define ARCH_HAS_SPINLOCK_PREFETCH
-
-static inline void prefetch(const void *x)
-{
-        if (unlikely(!x))
-                return;
-
-        __asm__ __volatile__ ("dcbt 0,%0" : : "r" (x));
-}
-
-static inline void prefetchw(const void *x)
-{
-        if (unlikely(!x))
-                return;
-
-        __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x));
-}
-
-#define spin_lock_prefetch(x)   prefetchw(x)
-
-#define HAVE_ARCH_PICK_MMAP_LAYOUT
-
-static inline void ppc64_runlatch_on(void)
-{
-        unsigned long ctrl;
-
-        if (cpu_has_feature(CPU_FTR_CTRL)) {
-                ctrl = mfspr(SPRN_CTRLF);
-                ctrl |= CTRL_RUNLATCH;
-                mtspr(SPRN_CTRLT, ctrl);
-        }
-}
-
-static inline void ppc64_runlatch_off(void)
-{
-        unsigned long ctrl;
-
-        if (cpu_has_feature(CPU_FTR_CTRL)) {
-                ctrl = mfspr(SPRN_CTRLF);
-                ctrl &= ~CTRL_RUNLATCH;
-                mtspr(SPRN_CTRLT, ctrl);
-        }
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASSEMBLY__ */
-
-#ifdef __KERNEL__
-#define RUNLATCH_ON(REG)                        \
-BEGIN_FTR_SECTION                               \
-        mfspr   (REG),SPRN_CTRLF;               \
-        ori     (REG),(REG),CTRL_RUNLATCH;      \
-        mtspr   SPRN_CTRLT,(REG);               \
-END_FTR_SECTION_IFSET(CPU_FTR_CTRL)
-#endif
-
-/*
- * Number of entries in the SLB. If this ever changes we should handle
- * it with a use a cpu feature fixup.
- */
-#define SLB_NUM_ENTRIES 64
-
-#endif /* __ASM_PPC64_PROCESSOR_H */
diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h
index c02ec1d6b909..e8d0d2ab4c0f 100644
--- a/include/asm-ppc64/prom.h
+++ b/include/asm-ppc64/prom.h
@@ -14,6 +14,7 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
+#include <linux/config.h>
 #include <linux/proc_fs.h>
 #include <asm/atomic.h>
 
@@ -137,6 +138,9 @@ struct device_node {
         struct  kref kref;
         unsigned long _flags;
         void    *data;
+#ifdef CONFIG_PPC_ISERIES
+        struct list_head Device_List;
+#endif
 };
 
 extern struct device_node *of_chosen;
diff --git a/include/asm-ppc64/smp.h b/include/asm-ppc64/smp.h
index d86f742e9a21..c5e9052e7967 100644
--- a/include/asm-ppc64/smp.h
+++ b/include/asm-ppc64/smp.h
@@ -77,7 +77,6 @@ extern int smt_enabled_at_boot;
 
 extern int smp_mpic_probe(void);
 extern void smp_mpic_setup_cpu(int cpu);
-extern void smp_mpic_message_pass(int target, int msg);
 extern void smp_generic_kick_cpu(int nr);
 
 extern void smp_generic_give_timebase(void);
diff --git a/include/asm-ppc64/system.h b/include/asm-ppc64/system.h
index 375015c62f20..99b8ca52f101 100644
--- a/include/asm-ppc64/system.h
+++ b/include/asm-ppc64/system.h
@@ -13,7 +13,7 @@
 #include <asm/page.h>
 #include <asm/processor.h>
 #include <asm/hw_irq.h>
-#include <asm/memory.h>
+#include <asm/synch.h>
 
 /*
  * Memory barrier.
@@ -48,7 +48,7 @@
 #ifdef CONFIG_SMP
 #define smp_mb()        mb()
 #define smp_rmb()       rmb()
-#define smp_wmb()       __asm__ __volatile__ ("eieio" : : : "memory")
+#define smp_wmb()       eieio()
 #define smp_read_barrier_depends()  read_barrier_depends()
 #else
 #define smp_mb()        __asm__ __volatile__("": : :"memory")
@@ -120,8 +120,8 @@ extern void giveup_altivec(struct task_struct *);
 extern void disable_kernel_altivec(void);
 extern void enable_kernel_altivec(void);
 extern int emulate_altivec(struct pt_regs *);
-extern void cvt_fd(float *from, double *to, unsigned long *fpscr);
-extern void cvt_df(double *from, float *to, unsigned long *fpscr);
+extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
+extern void cvt_df(double *from, float *to, struct thread_struct *thread);
 
 #ifdef CONFIG_ALTIVEC
 extern void flush_altivec_to_thread(struct task_struct *);
@@ -131,7 +131,12 @@ static inline void flush_altivec_to_thread(struct task_struct *t)
 }
 #endif
 
+static inline void flush_spe_to_thread(struct task_struct *t)
+{
+}
+
 extern int mem_init_done;       /* set on boot once kmalloc can be called */
+extern unsigned long memory_limit;
 
 /* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */
 extern unsigned char e2a(unsigned char);
@@ -144,12 +149,7 @@ struct thread_struct;
 extern struct task_struct * _switch(struct thread_struct *prev,
                                     struct thread_struct *next);
 
-static inline int __is_processor(unsigned long pv)
-{
-        unsigned long pvr;
-        asm("mfspr %0, 0x11F" : "=r" (pvr)); 
-        return(PVR_VER(pvr) == pv);
-}
+extern int powersave_nap;       /* set if nap mode can be used in idle loop */
 
 /*
  * Atomic exchange
diff --git a/include/asm-ppc64/tce.h b/include/asm-ppc64/tce.h
new file mode 100644
index 000000000000..d40b6b42ab35
--- /dev/null
+++ b/include/asm-ppc64/tce.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
+ * Rewrite, cleanup:
+ * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef _ASM_TCE_H
+#define _ASM_TCE_H
+
+/*
+ * Tces come in two formats, one for the virtual bus and a different
+ * format for PCI
+ */
+#define TCE_VB  0
+#define TCE_PCI 1
+
+/* TCE page size is 4096 bytes (1 << 12) */
+
+#define TCE_SHIFT       12
+#define TCE_PAGE_SIZE   (1 << TCE_SHIFT)
+#define TCE_PAGE_FACTOR (PAGE_SHIFT - TCE_SHIFT)
+
+
+/* tce_entry
+ * Used by pSeries (SMP) and iSeries/pSeries LPAR, but there it's
+ * abstracted so layout is irrelevant.
+ */
+union tce_entry {
+        unsigned long te_word;
+        struct {
+                unsigned int  tb_cacheBits :6;  /* Cache hash bits - not used */
+                unsigned int  tb_rsvd      :6;
+                unsigned long tb_rpn       :40; /* Real page number */
+                unsigned int  tb_valid     :1;  /* Tce is valid (vb only) */
+                unsigned int  tb_allio     :1;  /* Tce is valid for all lps (vb only) */
+                unsigned int  tb_lpindex   :8;  /* LpIndex for user of TCE (vb only) */
+                unsigned int  tb_pciwr     :1;  /* Write allowed (pci only) */
+                unsigned int  tb_rdwr      :1;  /* Read allowed  (pci), Write allowed (vb) */
+        } te_bits;
+#define te_cacheBits te_bits.tb_cacheBits
+#define te_rpn       te_bits.tb_rpn
+#define te_valid     te_bits.tb_valid
+#define te_allio     te_bits.tb_allio
+#define te_lpindex   te_bits.tb_lpindex
+#define te_pciwr     te_bits.tb_pciwr
+#define te_rdwr      te_bits.tb_rdwr
+};
+
+
+#endif
diff --git a/include/asm-ppc64/time.h b/include/asm-ppc64/time.h
deleted file mode 100644
index c6c762cad8b0..000000000000
--- a/include/asm-ppc64/time.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Common time prototypes and such for all ppc machines.
- *
- * Written by Cort Dougan (cort@cs.nmt.edu) to merge
- * Paul Mackerras' version and mine for PReP and Pmac.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef __PPC64_TIME_H
-#define __PPC64_TIME_H
-
-#ifdef __KERNEL__
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/mc146818rtc.h>
-
-#include <asm/processor.h>
-#include <asm/paca.h>
-#include <asm/iSeries/HvCall.h>
-
-/* time.c */
-extern unsigned long tb_ticks_per_jiffy;
-extern unsigned long tb_ticks_per_usec;
-extern unsigned long tb_ticks_per_sec;
-extern unsigned long tb_to_xs;
-extern unsigned      tb_to_us;
-extern unsigned long tb_last_stamp;
-
-struct rtc_time;
-extern void to_tm(int tim, struct rtc_time * tm);
-extern time_t last_rtc_update;
-
-void generic_calibrate_decr(void);
-void setup_default_decr(void);
-
-/* Some sane defaults: 125 MHz timebase, 1GHz processor */
-extern unsigned long ppc_proc_freq;
-#define DEFAULT_PROC_FREQ       (DEFAULT_TB_FREQ * 8)
-extern unsigned long ppc_tb_freq;
-#define DEFAULT_TB_FREQ         125000000UL
-
-/*
- * By putting all of this stuff into a single struct we 
- * reduce the number of cache lines touched by do_gettimeofday.
- * Both by collecting all of the data in one cache line and
- * by touching only one TOC entry
- */
-struct gettimeofday_vars {
-        unsigned long tb_to_xs;
-        unsigned long stamp_xsec;
-        unsigned long tb_orig_stamp;
-};
-
-struct gettimeofday_struct {
-        unsigned long tb_ticks_per_sec;
-        struct gettimeofday_vars vars[2];
-        struct gettimeofday_vars * volatile varp;
-        unsigned      var_idx;
-        unsigned      tb_to_us;
-};
-
-struct div_result {
-        unsigned long result_high;
-        unsigned long result_low;
-};
-
-int via_calibrate_decr(void);
-
-static __inline__ unsigned long get_tb(void)
-{
-        return mftb();
-}
-
-/* Accessor functions for the decrementer register. */
-static __inline__ unsigned int get_dec(void)
-{
-        return (mfspr(SPRN_DEC));
-}
-
-static __inline__ void set_dec(int val)
-{
-#ifdef CONFIG_PPC_ISERIES
-        struct paca_struct *lpaca = get_paca();
-        int cur_dec;
-
-        if (lpaca->lppaca.shared_proc) {
-                lpaca->lppaca.virtual_decr = val;
-                cur_dec = get_dec();
-                if (cur_dec > val)
-                        HvCall_setVirtualDecr();
-        } else
-#endif
-                mtspr(SPRN_DEC, val);
-}
-
-static inline unsigned long tb_ticks_since(unsigned long tstamp)
-{
-        return get_tb() - tstamp;
-}
-
-#define mulhwu(x,y) \
-({unsigned z; asm ("mulhwu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
-#define mulhdu(x,y) \
-({unsigned long z; asm ("mulhdu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
-
-
-unsigned mulhwu_scale_factor(unsigned, unsigned);
-void div128_by_32( unsigned long dividend_high, unsigned long dividend_low,
-                   unsigned divisor, struct div_result *dr );
-
-/* Used to store Processor Utilization register (purr) values */
-
-struct cpu_usage {
-        u64 current_tb;  /* Holds the current purr register values */
-};
-
-DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array);
-
-#endif /* __KERNEL__ */
-#endif /* __PPC64_TIME_H */
diff --git a/include/asm-ppc64/tlbflush.h b/include/asm-ppc64/tlbflush.h
index 74271d7c1d16..626f505c6ee3 100644
--- a/include/asm-ppc64/tlbflush.h
+++ b/include/asm-ppc64/tlbflush.h
@@ -20,10 +20,8 @@
 struct mm_struct;
 struct ppc64_tlb_batch {
         unsigned long index;
-        unsigned long context;
         struct mm_struct *mm;
         pte_t pte[PPC64_TLB_BATCH_NR];
-        unsigned long addr[PPC64_TLB_BATCH_NR];
         unsigned long vaddr[PPC64_TLB_BATCH_NR];
         unsigned int large;
 };
@@ -48,8 +46,7 @@ static inline void flush_tlb_pending(void)
 #define flush_tlb_kernel_range(start, end)      flush_tlb_pending()
 #define flush_tlb_pgtables(mm, start, end)      do { } while (0)
 
-extern void flush_hash_page(unsigned long context, unsigned long ea, pte_t pte,
-                            int local);
-void flush_hash_range(unsigned long context, unsigned long number, int local);
+extern void flush_hash_page(unsigned long va, pte_t pte, int local);
+void flush_hash_range(unsigned long number, int local);
 
 #endif /* _PPC64_TLBFLUSH_H */
diff --git a/include/asm-ppc64/udbg.h b/include/asm-ppc64/udbg.h
index c786604aef02..8192fb8541cc 100644
--- a/include/asm-ppc64/udbg.h
+++ b/include/asm-ppc64/udbg.h
@@ -28,4 +28,7 @@ extern unsigned long udbg_ifdebug(unsigned long flags);
 extern void __init ppcdbg_initialize(void);
 
 extern void udbg_init_uart(void __iomem *comport, unsigned int speed);
+
+struct device_node;
+extern void udbg_init_scc(struct device_node *np);
 #endif
diff --git a/include/asm-ppc64/uninorth.h b/include/asm-ppc64/uninorth.h
deleted file mode 100644
index 7ad7059f2c80..000000000000
--- a/include/asm-ppc64/uninorth.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#include <asm-ppc/uninorth.h>
-
diff --git a/include/asm-ppc64/unistd.h b/include/asm-ppc64/unistd.h
deleted file mode 100644
index 977bc980c1af..000000000000
--- a/include/asm-ppc64/unistd.h
+++ /dev/null
@@ -1,487 +0,0 @@
-#ifndef _ASM_PPC_UNISTD_H_
-#define _ASM_PPC_UNISTD_H_
-
-/*
- * This file contains the system call numbers.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#define __NR_restart_syscall      0
-#define __NR_exit                 1
-#define __NR_fork                 2
-#define __NR_read                 3
-#define __NR_write                4
-#define __NR_open                 5
-#define __NR_close                6
-#define __NR_waitpid              7
-#define __NR_creat                8
-#define __NR_link                 9
-#define __NR_unlink              10
-#define __NR_execve              11
-#define __NR_chdir               12
-#define __NR_time                13
-#define __NR_mknod               14
-#define __NR_chmod               15
-#define __NR_lchown              16
-#define __NR_break               17
-#define __NR_oldstat             18
-#define __NR_lseek               19
-#define __NR_getpid              20
-#define __NR_mount               21
-#define __NR_umount              22
-#define __NR_setuid              23
-#define __NR_getuid              24
-#define __NR_stime               25
-#define __NR_ptrace              26
-#define __NR_alarm               27
-#define __NR_oldfstat            28
-#define __NR_pause               29
-#define __NR_utime               30
-#define __NR_stty                31
-#define __NR_gtty                32
-#define __NR_access              33
-#define __NR_nice                34
-#define __NR_ftime               35
-#define __NR_sync                36
-#define __NR_kill                37
-#define __NR_rename              38
-#define __NR_mkdir               39
-#define __NR_rmdir               40
-#define __NR_dup                 41
-#define __NR_pipe                42
-#define __NR_times               43
-#define __NR_prof                44
-#define __NR_brk                 45
-#define __NR_setgid              46
-#define __NR_getgid              47
-#define __NR_signal              48
-#define __NR_geteuid             49
-#define __NR_getegid             50
-#define __NR_acct                51
-#define __NR_umount2             52
-#define __NR_lock                53
-#define __NR_ioctl               54
-#define __NR_fcntl               55
-#define __NR_mpx                 56
-#define __NR_setpgid             57
-#define __NR_ulimit              58
-#define __NR_oldolduname         59
-#define __NR_umask               60
-#define __NR_chroot              61
-#define __NR_ustat               62
-#define __NR_dup2                63
-#define __NR_getppid             64
-#define __NR_getpgrp             65
-#define __NR_setsid              66
-#define __NR_sigaction           67
-#define __NR_sgetmask            68
-#define __NR_ssetmask            69
-#define __NR_setreuid            70
-#define __NR_setregid            71
-#define __NR_sigsuspend          72
-#define __NR_sigpending          73
-#define __NR_sethostname         74
-#define __NR_setrlimit           75
-#define __NR_getrlimit           76
-#define __NR_getrusage           77
-#define __NR_gettimeofday        78
-#define __NR_settimeofday        79
-#define __NR_getgroups           80
-#define __NR_setgroups           81
-#define __NR_select              82
-#define __NR_symlink             83
-#define __NR_oldlstat            84
-#define __NR_readlink            85
-#define __NR_uselib              86
-#define __NR_swapon              87
-#define __NR_reboot              88
-#define __NR_readdir             89
-#define __NR_mmap                90
-#define __NR_munmap              91
-#define __NR_truncate            92
-#define __NR_ftruncate           93
-#define __NR_fchmod              94
-#define __NR_fchown              95
-#define __NR_getpriority         96
-#define __NR_setpriority         97
-#define __NR_profil              98
-#define __NR_statfs              99
-#define __NR_fstatfs            100
-#define __NR_ioperm             101
-#define __NR_socketcall         102
-#define __NR_syslog             103
-#define __NR_setitimer          104
-#define __NR_getitimer          105
-#define __NR_stat               106
-#define __NR_lstat              107
-#define __NR_fstat              108
-#define __NR_olduname           109
-#define __NR_iopl               110
-#define __NR_vhangup            111
-#define __NR_idle               112
-#define __NR_vm86               113
-#define __NR_wait4              114
-#define __NR_swapoff            115
-#define __NR_sysinfo            116
-#define __NR_ipc                117
-#define __NR_fsync              118
-#define __NR_sigreturn          119
-#define __NR_clone              120
-#define __NR_setdomainname      121
-#define __NR_uname              122
-#define __NR_modify_ldt         123
-#define __NR_adjtimex           124
-#define __NR_mprotect           125
-#define __NR_sigprocmask        126
-#define __NR_create_module      127
-#define __NR_init_module        128
-#define __NR_delete_module      129
-#define __NR_get_kernel_syms    130
-#define __NR_quotactl           131
-#define __NR_getpgid            132
-#define __NR_fchdir             133
-#define __NR_bdflush            134
-#define __NR_sysfs              135
-#define __NR_personality        136
-#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
-#define __NR_setfsuid           138
-#define __NR_setfsgid           139
-#define __NR__llseek            140
-#define __NR_getdents           141
-#define __NR__newselect         142
-#define __NR_flock              143
-#define __NR_msync              144
-#define __NR_readv              145
-#define __NR_writev             146
-#define __NR_getsid             147
-#define __NR_fdatasync          148
-#define __NR__sysctl            149
-#define __NR_mlock              150
-#define __NR_munlock            151
-#define __NR_mlockall           152
-#define __NR_munlockall         153
-#define __NR_sched_setparam             154
-#define __NR_sched_getparam             155
-#define __NR_sched_setscheduler         156
-#define __NR_sched_getscheduler         157
-#define __NR_sched_yield                158
-#define __NR_sched_get_priority_max     159
-#define __NR_sched_get_priority_min     160
-#define __NR_sched_rr_get_interval      161
-#define __NR_nanosleep          162
-#define __NR_mremap             163
-#define __NR_setresuid          164
-#define __NR_getresuid          165
-#define __NR_query_module       166
-#define __NR_poll               167
-#define __NR_nfsservctl         168
-#define __NR_setresgid          169
-#define __NR_getresgid          170
-#define __NR_prctl              171
-#define __NR_rt_sigreturn       172
-#define __NR_rt_sigaction       173
-#define __NR_rt_sigprocmask     174
-#define __NR_rt_sigpending      175
-#define __NR_rt_sigtimedwait    176
-#define __NR_rt_sigqueueinfo    177
-#define __NR_rt_sigsuspend      178
-#define __NR_pread64            179
-#define __NR_pwrite64           180
-#define __NR_chown              181
-#define __NR_getcwd             182
-#define __NR_capget             183
-#define __NR_capset             184
-#define __NR_sigaltstack        185
-#define __NR_sendfile           186
-#define __NR_getpmsg            187     /* some people actually want streams */
-#define __NR_putpmsg            188     /* some people actually want streams */
-#define __NR_vfork              189
-#define __NR_ugetrlimit         190     /* SuS compliant getrlimit */
-#define __NR_readahead          191
-/* #define __NR_mmap2           192     32bit only */
-/* #define __NR_truncate64      193     32bit only */
-/* #define __NR_ftruncate64     194     32bit only */
-/* #define __NR_stat64          195     32bit only */
-/* #define __NR_lstat64         196     32bit only */
-/* #define __NR_fstat64         197     32bit only */
-#define __NR_pciconfig_read     198
-#define __NR_pciconfig_write    199
-#define __NR_pciconfig_iobase   200
-#define __NR_multiplexer        201
-#define __NR_getdents64         202
-#define __NR_pivot_root         203
-/* #define __NR_fcntl64         204     32bit only */
-#define __NR_madvise            205
-#define __NR_mincore            206
-#define __NR_gettid             207
-#define __NR_tkill              208
-#define __NR_setxattr           209
-#define __NR_lsetxattr          210
-#define __NR_fsetxattr          211
-#define __NR_getxattr           212
-#define __NR_lgetxattr          213
-#define __NR_fgetxattr          214
-#define __NR_listxattr          215
-#define __NR_llistxattr         216
-#define __NR_flistxattr         217
-#define __NR_removexattr        218
-#define __NR_lremovexattr       219
-#define __NR_fremovexattr       220
-#define __NR_futex              221
-#define __NR_sched_setaffinity  222
-#define __NR_sched_getaffinity  223
-/* 224 currently unused */
-#define __NR_tuxcall            225
-/* #define __NR_sendfile64      226     32bit only */
-#define __NR_io_setup           227
-#define __NR_io_destroy         228
-#define __NR_io_getevents       229
-#define __NR_io_submit          230
-#define __NR_io_cancel          231
-#define __NR_set_tid_address    232
-#define __NR_fadvise64          233
-#define __NR_exit_group         234
-#define __NR_lookup_dcookie     235
-#define __NR_epoll_create       236
-#define __NR_epoll_ctl          237
-#define __NR_epoll_wait         238
-#define __NR_remap_file_pages   239
-#define __NR_timer_create       240
-#define __NR_timer_settime      241
-#define __NR_timer_gettime      242
-#define __NR_timer_getoverrun   243
-#define __NR_timer_delete       244
-#define __NR_clock_settime      245
-#define __NR_clock_gettime      246
-#define __NR_clock_getres       247
-#define __NR_clock_nanosleep    248
-#define __NR_swapcontext        249
-#define __NR_tgkill             250
-#define __NR_utimes             251
-#define __NR_statfs64           252
-#define __NR_fstatfs64          253
-/* #define __NR_fadvise64_64    254     32bit only */
-#define __NR_rtas               255
-/* Number 256 is reserved for sys_debug_setcontext */
-/* Number 257 is reserved for vserver */
-/* 258 currently unused */
-#define __NR_mbind              259
-#define __NR_get_mempolicy      260
-#define __NR_set_mempolicy      261
-#define __NR_mq_open            262
-#define __NR_mq_unlink          263
-#define __NR_mq_timedsend       264
-#define __NR_mq_timedreceive    265
-#define __NR_mq_notify          266
-#define __NR_mq_getsetattr      267
-#define __NR_kexec_load         268
-#define __NR_add_key            269
-#define __NR_request_key        270
-#define __NR_keyctl             271
-#define __NR_waitid             272
-#define __NR_ioprio_set         273
-#define __NR_ioprio_get         274
-#define __NR_inotify_init       275
-#define __NR_inotify_add_watch  276
-#define __NR_inotify_rm_watch   277
-
-#define __NR_syscalls           278
-#ifdef __KERNEL__
-#define NR_syscalls     __NR_syscalls
-#endif
-
-#ifndef __ASSEMBLY__
-
-/* On powerpc a system call basically clobbers the same registers like a
- * function call, with the exception of LR (which is needed for the
- * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
- * an error return status).
- */
-
-#define __syscall_nr(nr, type, name, args...)                           \
-        unsigned long __sc_ret, __sc_err;                               \
-        {                                                               \
-                register unsigned long __sc_0  __asm__ ("r0");          \
-                register unsigned long __sc_3  __asm__ ("r3");          \
-                register unsigned long __sc_4  __asm__ ("r4");          \
-                register unsigned long __sc_5  __asm__ ("r5");          \
-                register unsigned long __sc_6  __asm__ ("r6");          \
-                register unsigned long __sc_7  __asm__ ("r7");          \
-                register unsigned long __sc_8  __asm__ ("r8");          \
-                                                                        \
-                __sc_loadargs_##nr(name, args);                         \
-                __asm__ __volatile__                                    \
-                        ("sc           \n\t"                            \
-                         "mfcr %0      "                                \
-                        : "=&r" (__sc_0),                               \
-                          "=&r" (__sc_3),  "=&r" (__sc_4),              \
-                          "=&r" (__sc_5),  "=&r" (__sc_6),              \
-                          "=&r" (__sc_7),  "=&r" (__sc_8)               \
-                        : __sc_asm_input_##nr                           \
-                        : "cr0", "ctr", "memory",                       \
-                                "r9", "r10","r11", "r12");              \
-                __sc_ret = __sc_3;                                      \
-                __sc_err = __sc_0;                                      \
-        }                                                               \
-        if (__sc_err & 0x10000000)                                      \
-        {                                                               \
-                errno = __sc_ret;                                       \
-                __sc_ret = -1;                                          \
-        }                                                               \
-        return (type) __sc_ret
-
-#define __sc_loadargs_0(name, dummy...)                                 \
-        __sc_0 = __NR_##name
-#define __sc_loadargs_1(name, arg1)                                     \
-        __sc_loadargs_0(name);                                          \
-        __sc_3 = (unsigned long) (arg1)
-#define __sc_loadargs_2(name, arg1, arg2)                               \
-        __sc_loadargs_1(name, arg1);                                    \
-        __sc_4 = (unsigned long) (arg2)
-#define __sc_loadargs_3(name, arg1, arg2, arg3)                         \
-        __sc_loadargs_2(name, arg1, arg2);                              \
-        __sc_5 = (unsigned long) (arg3)
-#define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)                   \
-        __sc_loadargs_3(name, arg1, arg2, arg3);                        \
-        __sc_6 = (unsigned long) (arg4)
-#define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)             \
-        __sc_loadargs_4(name, arg1, arg2, arg3, arg4);                  \
-        __sc_7 = (unsigned long) (arg5)
-#define __sc_loadargs_6(name, arg1, arg2, arg3, arg4, arg5, arg6)       \
-        __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5);            \
-        __sc_8 = (unsigned long) (arg6)
-
-#define __sc_asm_input_0 "0" (__sc_0)
-#define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
-#define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
-#define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
-#define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
-#define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
-#define __sc_asm_input_6 __sc_asm_input_5, "6" (__sc_8)
-
-#define _syscall0(type,name)                                            \
-type name(void)                                                         \
-{                                                                       \
-        __syscall_nr(0, type, name);                                    \
-}
-
-#define _syscall1(type,name,type1,arg1)                                 \
-type name(type1 arg1)                                                   \
-{                                                                       \
-        __syscall_nr(1, type, name, arg1);                              \
-}
-
-#define _syscall2(type,name,type1,arg1,type2,arg2)                      \
-type name(type1 arg1, type2 arg2)                                       \
-{                                                                       \
-        __syscall_nr(2, type, name, arg1, arg2);                        \
-}
-
-#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)           \
-type name(type1 arg1, type2 arg2, type3 arg3)                           \
-{                                                                       \
-        __syscall_nr(3, type, name, arg1, arg2, arg3);                  \
-}
-
-#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)               \
-{                                                                       \
-        __syscall_nr(4, type, name, arg1, arg2, arg3, arg4);            \
-}
-
-#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)   \
-{                                                                       \
-        __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5);      \
-}
-#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6)       \
-{                                                                       \
-        __syscall_nr(6, type, name, arg1, arg2, arg3, arg4, arg5, arg6);        \
-}
-
-#ifdef __KERNEL_SYSCALLS__
-
-/*
- * Forking from kernel space will result in the child getting a new,
- * empty kernel stack area.  Thus the child cannot access automatic
- * variables set in the parent unless they are in registers, and the
- * procedure where the fork was done cannot return to its caller in
- * the child.
- */
-
-/*
- * System call prototypes.
- */
-static inline _syscall3(int, execve, __const__ char *, file, char **, argv,
-                        char **,envp)
-
-#endif /* __KERNEL_SYSCALLS__ */
-
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-#include <linux/compiler.h>
-#include <linux/linkage.h>
-
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_COMPAT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-
-unsigned long sys_mmap(unsigned long addr, size_t len, unsigned long prot,
-                       unsigned long flags, unsigned long fd, off_t offset);
-struct pt_regs;
-int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
-                unsigned long a3, unsigned long a4, unsigned long a5,
-                struct pt_regs *regs);
-int sys_clone(unsigned long clone_flags, unsigned long p2, unsigned long p3,
-                unsigned long p4, unsigned long p5, unsigned long p6,
-                struct pt_regs *regs);
-int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
-                unsigned long p4, unsigned long p5, unsigned long p6,
-                struct pt_regs *regs);
-int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
-                unsigned long p4, unsigned long p5, unsigned long p6,
-                struct pt_regs *regs);
-int sys_pipe(int __user *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
-struct sigaction;
-long sys_rt_sigaction(int sig, const struct sigaction __user *act,
-                      struct sigaction __user *oact, size_t sigsetsize);
-
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t." #x "\n\t.set\t." #x ",.sys_ni_syscall")
-
-#endif          /* __KERNEL__ */
-
-#endif          /* __ASSEMBLY__ */
-
-#endif /* _ASM_PPC_UNISTD_H_ */
diff --git a/include/asm-s390/semaphore.h b/include/asm-s390/semaphore.h
index 873def6f363a..702cf436698c 100644
--- a/include/asm-s390/semaphore.h
+++ b/include/asm-s390/semaphore.h
@@ -29,9 +29,6 @@ struct semaphore {
 #define __SEMAPHORE_INITIALIZER(name,count) \
         { ATOMIC_INIT(count), __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h
index 0d51c484c2ea..348a88137445 100644
--- a/include/asm-s390/setup.h
+++ b/include/asm-s390/setup.h
@@ -8,11 +8,14 @@
 #ifndef _ASM_S390_SETUP_H
 #define _ASM_S390_SETUP_H
 
+#include <asm/types.h>
+
 #define PARMAREA                0x10400
 #define COMMAND_LINE_SIZE       896
 #define RAMDISK_ORIGIN          0x800000
 #define RAMDISK_SIZE            0x800000
 #define MEMORY_CHUNKS           16      /* max 0x7fff */
+#define IPL_PARMBLOCK_ORIGIN    0x2000
 
 #ifndef __ASSEMBLY__
 
@@ -64,6 +67,53 @@ extern unsigned int console_irq;
 #define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
 #define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
 
+struct ipl_list_header {
+        u32 length;
+        u8  reserved[3];
+        u8  version;
+} __attribute__((packed));
+
+struct ipl_block_fcp {
+        u32 length;
+        u8  pbt;
+        u8  reserved1[322-1];
+        u16 devno;
+        u8  reserved2[4];
+        u64 wwpn;
+        u64 lun;
+        u32 bootprog;
+        u8  reserved3[12];
+        u64 br_lba;
+        u32 scp_data_len;
+        u8  reserved4[260];
+        u8  scp_data[];
+} __attribute__((packed));
+
+struct ipl_parameter_block {
+        union {
+                u32 length;
+                struct ipl_list_header header;
+        } hdr;
+        struct ipl_block_fcp fcp;
+} __attribute__((packed));
+
+#define IPL_MAX_SUPPORTED_VERSION (0)
+
+#define IPL_TYPE_FCP (0)
+
+/*
+ * IPL validity flags and parameters as detected in head.S
+ */
+extern u32 ipl_parameter_flags;
+extern u16 ipl_devno;
+
+#define IPL_DEVNO_VALID         (ipl_parameter_flags & 1)
+#define IPL_PARMBLOCK_VALID     (ipl_parameter_flags & 2)
+
+#define IPL_PARMBLOCK_START     ((struct ipl_parameter_block *) \
+                                 IPL_PARMBLOCK_ORIGIN)
+#define IPL_PARMBLOCK_SIZE      (IPL_PARMBLOCK_START->hdr.length)
+
 #else 
 
 #ifndef __s390x__
diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h
index 221e965da924..f97d92691f17 100644
--- a/include/asm-s390/unistd.h
+++ b/include/asm-s390/unistd.h
@@ -590,7 +590,6 @@ asmlinkage long sys_clone(struct pt_regs regs);
 asmlinkage long sys_fork(struct pt_regs regs);
 asmlinkage long sys_vfork(struct pt_regs regs);
 asmlinkage long sys_pipe(unsigned long __user *fildes);
-asmlinkage long sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h
index 0f4bcaae61bd..aef8ae43de13 100644
--- a/include/asm-sh/pgtable.h
+++ b/include/asm-sh/pgtable.h
@@ -224,8 +224,6 @@ static inline pgprot_t pgprot_noncached(pgprot_t _prot)
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 { set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot))); return pte; }
 
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
-
 #define pmd_page_kernel(pmd) \
 ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
 
diff --git a/include/asm-sh/semaphore.h b/include/asm-sh/semaphore.h
index b923a77a8a7e..489f7847c5d9 100644
--- a/include/asm-sh/semaphore.h
+++ b/include/asm-sh/semaphore.h
@@ -33,9 +33,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h
index ea89e8f223ea..f2c8e14d1fd9 100644
--- a/include/asm-sh/unistd.h
+++ b/include/asm-sh/unistd.h
@@ -503,7 +503,6 @@ asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
 asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
                         unsigned long r6, unsigned long r7,
                         struct pt_regs regs);
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
 asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char *buf,
                                 size_t count, long dummy, loff_t pos);
 asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char *buf,
diff --git a/include/asm-sh64/pgtable.h b/include/asm-sh64/pgtable.h
index 51db4307bfaf..51b05818e4eb 100644
--- a/include/asm-sh64/pgtable.h
+++ b/include/asm-sh64/pgtable.h
@@ -457,9 +457,6 @@ extern inline pte_t pte_mkhuge(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) | _
 extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 { set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot))); return pte; }
 
-#define page_pte_prot(page, prot) mk_pte(page, prot)
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
-
 typedef pte_t *pte_addr_t;
 #define pgtable_cache_init()    do { } while (0)
 
diff --git a/include/asm-sh64/semaphore.h b/include/asm-sh64/semaphore.h
index fce22bb9a546..469526459149 100644
--- a/include/asm-sh64/semaphore.h
+++ b/include/asm-sh64/semaphore.h
@@ -40,9 +40,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-sparc/floppy.h b/include/asm-sparc/floppy.h
index caf926116506..7a941b800b6b 100644
--- a/include/asm-sparc/floppy.h
+++ b/include/asm-sparc/floppy.h
@@ -17,10 +17,8 @@
 
 /* We don't need no stinkin' I/O port allocation crap. */
 #undef release_region
-#undef check_region
 #undef request_region
 #define release_region(X, Y)    do { } while(0)
-#define check_region(X, Y)      (0)
 #define request_region(X, Y, Z) (1)
 
 /* References:
diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h
index a14e98677500..b33c35411e82 100644
--- a/include/asm-sparc/pgtable.h
+++ b/include/asm-sparc/pgtable.h
@@ -255,8 +255,6 @@ BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t)
 #define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte)
 #define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte)
 
-#define page_pte_prot(page, prot)       mk_pte(page, prot)
-#define page_pte(page)                  mk_pte(page, __pgprot(0))
 #define pfn_pte(pfn, prot)              mk_pte(pfn_to_page(pfn), prot)
 
 BTFIXUPDEF_CALL(unsigned long,   pte_pfn, pte_t)
diff --git a/include/asm-sparc/semaphore.h b/include/asm-sparc/semaphore.h
index 60ac5fd9eb48..f74ba31e265b 100644
--- a/include/asm-sparc/semaphore.h
+++ b/include/asm-sparc/semaphore.h
@@ -22,9 +22,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index 8c6dfc6c7af6..9a02879b235d 100644
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -231,9 +231,6 @@ extern struct page *mem_map_zero;
 #define pte_pfn(x)              ((pte_val(x) & _PAGE_PADDR)>>PAGE_SHIFT)
 #define pte_page(x)             pfn_to_page(pte_pfn(x))
 
-#define page_pte_prot(page, prot)       mk_pte(page, prot)
-#define page_pte(page)                  page_pte_prot(page, __pgprot(0))
-
 static inline pte_t pte_modify(pte_t orig_pte, pgprot_t new_prot)
 {
         pte_t __pte;
diff --git a/include/asm-sparc64/semaphore.h b/include/asm-sparc64/semaphore.h
index 7419dd88b49e..093dcc6788db 100644
--- a/include/asm-sparc64/semaphore.h
+++ b/include/asm-sparc64/semaphore.h
@@ -22,9 +22,6 @@ struct semaphore {
         { ATOMIC_INIT(count), \
           __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name, 1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name, count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-um/cache.h b/include/asm-um/cache.h
index 4b134fe8504e..a10602a5b2d6 100644
--- a/include/asm-um/cache.h
+++ b/include/asm-um/cache.h
@@ -1,10 +1,21 @@
 #ifndef __UM_CACHE_H
 #define __UM_CACHE_H
 
-/* These are x86 numbers */
-#define L1_CACHE_SHIFT 5
-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+#include <linux/config.h>
 
-#define L1_CACHE_SHIFT_MAX 7    /* largest L1 which this arch supports */
+#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
+# define L1_CACHE_SHIFT         (CONFIG_X86_L1_CACHE_SHIFT)
+#elif defined(CONFIG_UML_X86) /* 64-bit */
+# define L1_CACHE_SHIFT         6 /* Should be 7 on Intel */
+#else
+/* XXX: this was taken from x86, now it's completely random. Luckily only
+ * affects SMP padding. */
+# define L1_CACHE_SHIFT         5
+#endif
+
+/* XXX: this is valid for x86 and x86_64. */
+#define L1_CACHE_SHIFT_MAX      7       /* largest L1 which this arch supports */
+
+#define L1_CACHE_BYTES          (1 << L1_CACHE_SHIFT)
 
 #endif
diff --git a/include/asm-um/linkage.h b/include/asm-um/linkage.h
index 7dfce37adc8b..e3d62dcbd356 100644
--- a/include/asm-um/linkage.h
+++ b/include/asm-um/linkage.h
@@ -3,4 +3,12 @@
 
 #include "asm/arch/linkage.h"
 
+#include <linux/config.h>
+
+/* <linux/linkage.h> will pick sane defaults */
+#ifdef CONFIG_GPROF
+#undef FASTCALL
+#undef fastcall
+#endif
+
 #endif
diff --git a/include/asm-v850/semaphore.h b/include/asm-v850/semaphore.h
index c514062bb69e..df6cdecf6c1f 100644
--- a/include/asm-v850/semaphore.h
+++ b/include/asm-v850/semaphore.h
@@ -18,9 +18,6 @@ struct semaphore {
         { ATOMIC_INIT (count), 0,                                             \
           __WAIT_QUEUE_HEAD_INITIALIZER ((name).wait) }
 
-#define __MUTEX_INITIALIZER(name)                                             \
-        __SEMAPHORE_INITIALIZER (name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER (name,count)
 
diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h
index 3b552096c0e8..5a86f8e976ec 100644
--- a/include/asm-v850/unistd.h
+++ b/include/asm-v850/unistd.h
@@ -452,7 +452,6 @@ unsigned long sys_mmap2(unsigned long addr, size_t len,
 struct pt_regs;
 int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs);
 int sys_pipe (int *fildes);
-int sys_ptrace(long request, long pid, long addr, long data);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
                                 const struct sigaction __user *act,
diff --git a/include/asm-x86_64/mtrr.h b/include/asm-x86_64/mtrr.h
index c5959d6418bb..66ac1c0f27e1 100644
--- a/include/asm-x86_64/mtrr.h
+++ b/include/asm-x86_64/mtrr.h
@@ -25,6 +25,7 @@
 
 #include <linux/config.h>
 #include <linux/ioctl.h>
+#include <linux/compat.h>
 
 #define MTRR_IOCTL_BASE 'M'
 
@@ -105,4 +106,36 @@ static __inline__ int mtrr_del_page (int reg, unsigned long base,
 
 #endif
 
+#ifdef CONFIG_COMPAT
+
+struct mtrr_sentry32
+{
+    compat_ulong_t base;    /*  Base address     */
+    compat_uint_t size;    /*  Size of region   */
+    compat_uint_t type;     /*  Type of region   */
+};
+
+struct mtrr_gentry32
+{
+    compat_ulong_t regnum;   /*  Register number  */
+    compat_uint_t base;    /*  Base address     */
+    compat_uint_t size;    /*  Size of region   */
+    compat_uint_t type;     /*  Type of region   */
+};
+
+#define MTRR_IOCTL_BASE 'M'
+
+#define MTRRIOC32_ADD_ENTRY        _IOW(MTRR_IOCTL_BASE,  0, struct mtrr_sentry32)
+#define MTRRIOC32_SET_ENTRY        _IOW(MTRR_IOCTL_BASE,  1, struct mtrr_sentry32)
+#define MTRRIOC32_DEL_ENTRY        _IOW(MTRR_IOCTL_BASE,  2, struct mtrr_sentry32)
+#define MTRRIOC32_GET_ENTRY        _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry32)
+#define MTRRIOC32_KILL_ENTRY       _IOW(MTRR_IOCTL_BASE,  4, struct mtrr_sentry32)
+#define MTRRIOC32_ADD_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  5, struct mtrr_sentry32)
+#define MTRRIOC32_SET_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  6, struct mtrr_sentry32)
+#define MTRRIOC32_DEL_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  7, struct mtrr_sentry32)
+#define MTRRIOC32_GET_PAGE_ENTRY   _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry32)
+#define MTRRIOC32_KILL_PAGE_ENTRY  _IOW(MTRR_IOCTL_BASE,  9, struct mtrr_sentry32)
+
+#endif /* CONFIG_COMPAT */
+
 #endif  /*  _LINUX_MTRR_H  */
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index dd8711ecaf2f..7a07196a7202 100644
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -318,8 +318,6 @@ static inline int pmd_large(pmd_t pte) {
  * and a page entry and page directory to the page they refer to.
  */
 
-#define page_pte(page) page_pte_prot(page, __pgprot(0))
-
 /*
  * Level 4 access.
  */
diff --git a/include/asm-x86_64/semaphore.h b/include/asm-x86_64/semaphore.h
index f325e39bf3b9..a389aa6fe80f 100644
--- a/include/asm-x86_64/semaphore.h
+++ b/include/asm-x86_64/semaphore.h
@@ -56,9 +56,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name) \
-        __SEMAPHORE_INITIALIZER(name,1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count) \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 11ba931cf82f..3c494b65d33a 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -780,8 +780,6 @@ asmlinkage long sys_pipe(int *fildes);
 #include <linux/types.h>
 #include <asm/ptrace.h>
 
-asmlinkage long sys_ptrace(long request, long pid,
-                                unsigned long addr, long data);
 asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs);
 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on);
 struct sigaction;
diff --git a/include/asm-xtensa/semaphore.h b/include/asm-xtensa/semaphore.h
index 09e89ab3eb61..2a10e193b929 100644
--- a/include/asm-xtensa/semaphore.h
+++ b/include/asm-xtensa/semaphore.h
@@ -29,9 +29,6 @@ struct semaphore {
         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait)    \
 }
 
-#define __MUTEX_INITIALIZER(name)                                       \
-        __SEMAPHORE_INITIALIZER(name, 1)
-
 #define __DECLARE_SEMAPHORE_GENERIC(name,count)                         \
         struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
 
diff --git a/include/keys/user-type.h b/include/keys/user-type.h
new file mode 100644
index 000000000000..26f6ec38577a
--- /dev/null
+++ b/include/keys/user-type.h
@@ -0,0 +1,47 @@
+/* user-type.h: User-defined key type
+ *
+ * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _KEYS_USER_TYPE_H
+#define _KEYS_USER_TYPE_H
+
+#include <linux/key.h>
+#include <linux/rcupdate.h>
+
+/*****************************************************************************/
+/*
+ * the payload for a key of type "user"
+ * - once filled in and attached to a key:
+ *   - the payload struct is invariant may not be changed, only replaced
+ *   - the payload must be read with RCU procedures or with the key semaphore
+ *     held
+ *   - the payload may only be replaced with the key semaphore write-locked
+ * - the key's data length is the size of the actual data, not including the
+ *   payload wrapper
+ */
+struct user_key_payload {
+        struct rcu_head rcu;            /* RCU destructor */
+        unsigned short  datalen;        /* length of this data */
+        char            data[0];        /* actual data */
+};
+
+extern struct key_type key_type_user;
+
+extern int user_instantiate(struct key *key, const void *data, size_t datalen);
+extern int user_duplicate(struct key *key, const struct key *source);
+extern int user_update(struct key *key, const void *data, size_t datalen);
+extern int user_match(const struct key *key, const void *criterion);
+extern void user_destroy(struct key *key);
+extern void user_describe(const struct key *user, struct seq_file *m);
+extern long user_read(const struct key *key,
+                      char __user *buffer, size_t buflen);
+
+
+#endif /* _KEYS_USER_TYPE_H */
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 86dd5502b05c..7d8ff97b3e92 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -40,6 +40,8 @@
  * bitmap_weight(src, nbits)                    Hamming Weight: number set bits
  * bitmap_shift_right(dst, src, n, nbits)       *dst = *src >> n
  * bitmap_shift_left(dst, src, n, nbits)        *dst = *src << n
+ * bitmap_remap(dst, src, old, new, nbits)      *dst = map(old, new)(src)
+ * bitmap_bitremap(oldbit, old, new, nbits)     newbit = map(old, new)(oldbit)
  * bitmap_scnprintf(buf, len, src, nbits)       Print bitmap src to buf
  * bitmap_parse(ubuf, ulen, dst, nbits)         Parse bitmap dst from user buf
  * bitmap_scnlistprintf(buf, len, src, nbits)   Print bitmap src as list to buf
@@ -104,6 +106,10 @@ extern int bitmap_scnlistprintf(char *buf, unsigned int len,
                         const unsigned long *src, int nbits);
 extern int bitmap_parselist(const char *buf, unsigned long *maskp,
                         int nmaskbits);
+extern void bitmap_remap(unsigned long *dst, const unsigned long *src,
+                const unsigned long *old, const unsigned long *new, int bits);
+extern int bitmap_bitremap(int oldbit,
+                const unsigned long *old, const unsigned long *new, int bits);
 extern int bitmap_find_free_region(unsigned long *bitmap, int bits, int order);
 extern void bitmap_release_region(unsigned long *bitmap, int pos, int order);
 extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order);
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index c937d6e65502..1db061bb6b08 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -190,6 +190,7 @@ extern int buffer_heads_over_limit;
  */
 int try_to_release_page(struct page * page, gfp_t gfp_mask);
 int block_invalidatepage(struct page *page, unsigned long offset);
+int do_invalidatepage(struct page *page, unsigned long offset);
 int block_write_full_page(struct page *page, get_block_t *get_block,
                                 struct writeback_control *wbc);
 int block_read_full_page(struct page*, get_block_t*);
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 86980c68234a..1f7b2c097503 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -32,6 +32,7 @@ struct cpu {
 };
 
 extern int register_cpu(struct cpu *, int, struct node *);
+extern struct sys_device *get_cpu_sysdev(int cpu);
 #ifdef CONFIG_HOTPLUG_CPU
 extern void unregister_cpu(struct cpu *, struct node *);
 #endif
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index ff7f80f48df1..d068176b7ad7 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -23,6 +23,7 @@
 #include <linux/completion.h>
 #include <linux/workqueue.h>
 #include <linux/cpumask.h>
+#include <asm/div64.h>
 
 #define CPUFREQ_NAME_LEN 16
 
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 9bdba8169b41..13e9f4a3ab26 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -12,6 +12,8 @@
  * see bitmap_scnprintf() and bitmap_parse() in lib/bitmap.c.
  * For details of cpulist_scnprintf() and cpulist_parse(), see
  * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c.
+ * For details of cpu_remap(), see bitmap_bitremap in lib/bitmap.c
+ * For details of cpus_remap(), see bitmap_remap in lib/bitmap.c.
  *
  * The available cpumask operations are:
  *
@@ -50,6 +52,8 @@
  * int cpumask_parse(ubuf, ulen, mask)  Parse ascii string as cpumask
  * int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing
  * int cpulist_parse(buf, map)          Parse ascii string as cpulist
+ * int cpu_remap(oldbit, old, new)      newbit = map(old, new)(oldbit)
+ * int cpus_remap(dst, src, old, new)   *dst = map(old, new)(src)
  *
  * for_each_cpu_mask(cpu, mask)         for-loop cpu over mask
  *
@@ -294,6 +298,22 @@ static inline int __cpulist_parse(const char *buf, cpumask_t *dstp, int nbits)
         return bitmap_parselist(buf, dstp->bits, nbits);
 }
 
+#define cpu_remap(oldbit, old, new) \
+                __cpu_remap((oldbit), &(old), &(new), NR_CPUS)
+static inline int __cpu_remap(int oldbit,
+                const cpumask_t *oldp, const cpumask_t *newp, int nbits)
+{
+        return bitmap_bitremap(oldbit, oldp->bits, newp->bits, nbits);
+}
+
+#define cpus_remap(dst, src, old, new) \
+                __cpus_remap(&(dst), &(src), &(old), &(new), NR_CPUS)
+static inline void __cpus_remap(cpumask_t *dstp, const cpumask_t *srcp,
+                const cpumask_t *oldp, const cpumask_t *newp, int nbits)
+{
+        bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits);
+}
+
 #if NR_CPUS > 1
 #define for_each_cpu_mask(cpu, mask)            \
         for ((cpu) = first_cpu(mask);           \
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index a415f1d93e9a..05f4132622fc 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -60,7 +60,7 @@ struct dmi_device {
         void *device_data;      /* Type specific data */
 };
 
-#if defined(CONFIG_X86) && !defined(CONFIG_X86_64)
+#if defined(CONFIG_X86_32)
 
 extern int dmi_check_system(struct dmi_system_id *list);
 extern char * dmi_get_system_info(int field);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f83d997c5582..6d6226732c93 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -574,7 +574,14 @@ struct file_ra_state {
 #define RA_FLAG_INCACHE 0x02    /* file is already in cache */
 
 struct file {
-        struct list_head        f_list;
+        /*
+         * fu_list becomes invalid after file_free is called and queued via
+         * fu_rcuhead for RCU freeing
+         */
+        union {
+                struct list_head        fu_list;
+                struct rcu_head         fu_rcuhead;
+        } f_u;
         struct dentry           *f_dentry;
         struct vfsmount         *f_vfsmnt;
         struct file_operations  *f_op;
@@ -598,7 +605,6 @@ struct file {
         spinlock_t              f_ep_lock;
 #endif /* #ifdef CONFIG_EPOLL */
         struct address_space    *f_mapping;
-        struct rcu_head         f_rcuhead;
 };
 extern spinlock_t files_lock;
 #define file_list_lock() spin_lock(&files_lock);
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index 70f54af87b9f..114d5d59f695 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -47,16 +47,21 @@
 struct gianfar_platform_data {
         /* device specific information */
         u32 device_flags;
-        u32 phy_reg_addr;
 
         /* board specific information */
         u32 board_flags;
-        u32 phy_flags;
-        u32 phyid;
-        u32 interruptPHY;
+        const char *bus_id;
         u8 mac_addr[6];
 };
 
+struct gianfar_mdio_data {
+        /* device specific information */
+        u32 paddr;
+
+        /* board specific information */
+        int irq[32];
+};
+
 /* Flags related to gianfar device features */
 #define FSL_GIANFAR_DEV_HAS_GIGABIT             0x00000001
 #define FSL_GIANFAR_DEV_HAS_COALESCE            0x00000002
diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index acbeb96a3353..f98854c2abd7 100644
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -61,7 +61,6 @@ struct fuse_kstatfs {
 #define FATTR_SIZE      (1 << 3)
 #define FATTR_ATIME     (1 << 4)
 #define FATTR_MTIME     (1 << 5)
-#define FATTR_CTIME     (1 << 6)
 
 /**
  * Flags returned by the OPEN request
diff --git a/include/linux/gameport.h b/include/linux/gameport.h
index cd623eccdbea..2401dea2b867 100644
--- a/include/linux/gameport.h
+++ b/include/linux/gameport.h
@@ -12,6 +12,7 @@
 #include <asm/io.h>
 #include <linux/list.h>
 #include <linux/device.h>
+#include <linux/timer.h>
 
 struct gameport {
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index f88577ca3b3a..5e19a7ba69b2 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -31,6 +31,7 @@
 #include <linux/i2c-id.h>
 #include <linux/mod_devicetable.h>
 #include <linux/device.h>       /* for struct device */
+#include <linux/sched.h>        /* for completion */
 #include <asm/semaphore.h>
 
 /* --- For i2c-isa ---------------------------------------------------- */
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index 92300325dbcd..d79c8a4bc4f8 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -25,10 +25,14 @@
 /* How many different OSM's are we allowing */
 #define I2O_MAX_DRIVERS         8
 
-#include <asm/io.h>
-#include <asm/semaphore.h>      /* Needed for MUTEX init macros */
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>    /* work_struct */
+
+#include <asm/io.h>
+#include <asm/semaphore.h>      /* Needed for MUTEX init macros */
 
 /* message queue empty */
 #define I2O_QUEUE_EMPTY         0xffffffff
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4367ce4db52a..f1925ccc9fe1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -307,7 +307,7 @@ struct sysinfo {
         char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
 };
 
-/* Force a compilation error if condition is false */
+/* Force a compilation error if condition is true */
 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 
 #ifdef CONFIG_SYSCTL
diff --git a/include/linux/key-ui.h b/include/linux/key-ui.h
index 7a2e332067c3..e8b8a7a5c496 100644
--- a/include/linux/key-ui.h
+++ b/include/linux/key-ui.h
@@ -24,7 +24,8 @@ extern spinlock_t key_serial_lock;
 #define KEY_WRITE       0x04    /* require permission to update / modify */
 #define KEY_SEARCH      0x08    /* require permission to search (keyring) or find (key) */
 #define KEY_LINK        0x10    /* require permission to link */
-#define KEY_ALL         0x1f    /* all the above permissions */
+#define KEY_SETATTR     0x20    /* require permission to change attributes */
+#define KEY_ALL         0x3f    /* all the above permissions */
 
 /*
  * the keyring payload contains a list of the keys to which the keyring is
diff --git a/include/linux/key.h b/include/linux/key.h
index f1efa016dbf3..53513a3be53b 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -40,28 +40,32 @@ struct key;
 #define KEY_POS_WRITE   0x04000000      /* possessor can update key payload / add link to keyring */
 #define KEY_POS_SEARCH  0x08000000      /* possessor can find a key in search / search a keyring */
 #define KEY_POS_LINK    0x10000000      /* possessor can create a link to a key/keyring */
-#define KEY_POS_ALL     0x1f000000
+#define KEY_POS_SETATTR 0x20000000      /* possessor can set key attributes */
+#define KEY_POS_ALL     0x3f000000
 
 #define KEY_USR_VIEW    0x00010000      /* user permissions... */
 #define KEY_USR_READ    0x00020000
 #define KEY_USR_WRITE   0x00040000
 #define KEY_USR_SEARCH  0x00080000
 #define KEY_USR_LINK    0x00100000
-#define KEY_USR_ALL     0x001f0000
+#define KEY_USR_SETATTR 0x00200000
+#define KEY_USR_ALL     0x003f0000
 
 #define KEY_GRP_VIEW    0x00000100      /* group permissions... */
 #define KEY_GRP_READ    0x00000200
 #define KEY_GRP_WRITE   0x00000400
 #define KEY_GRP_SEARCH  0x00000800
 #define KEY_GRP_LINK    0x00001000
-#define KEY_GRP_ALL     0x00001f00
+#define KEY_GRP_SETATTR 0x00002000
+#define KEY_GRP_ALL     0x00003f00
 
 #define KEY_OTH_VIEW    0x00000001      /* third party permissions... */
 #define KEY_OTH_READ    0x00000002
 #define KEY_OTH_WRITE   0x00000004
 #define KEY_OTH_SEARCH  0x00000008
 #define KEY_OTH_LINK    0x00000010
-#define KEY_OTH_ALL     0x0000001f
+#define KEY_OTH_SETATTR 0x00000020
+#define KEY_OTH_ALL     0x0000003f
 
 struct seq_file;
 struct user_struct;
@@ -119,6 +123,7 @@ struct key {
         struct key_type         *type;          /* type of key */
         struct rw_semaphore     sem;            /* change vs change sem */
         struct key_user         *user;          /* owner of this key */
+        void                    *security;      /* security data for this key */
         time_t                  expiry;         /* time at which key expires (or 0) */
         uid_t                   uid;
         gid_t                   gid;
diff --git a/include/linux/kobj_map.h b/include/linux/kobj_map.h
index b6cc10bf8dfc..cbe7d8008042 100644
--- a/include/linux/kobj_map.h
+++ b/include/linux/kobj_map.h
@@ -1,5 +1,7 @@
 #ifdef __KERNEL__
 
+#include <asm/semaphore.h>
+
 typedef struct kobject *kobj_probe_t(dev_t, int *, void *);
 struct kobj_map;
 
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 3fa786448db3..ebdd41fd1082 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -70,6 +70,18 @@ void kthread_bind(struct task_struct *k, unsigned int cpu);
 int kthread_stop(struct task_struct *k);
 
 /**
+ * kthread_stop_sem: stop a thread created by kthread_create().
+ * @k: thread created by kthread_create().
+ * @s: semaphore that @k waits on while idle.
+ *
+ * Does essentially the same thing as kthread_stop() above, but wakes
+ * @k by calling up(@s).
+ *
+ * Returns the result of threadfn(), or -EINTR if wake_up_process()
+ * was never called. */
+int kthread_stop_sem(struct task_struct *k, struct semaphore *s);
+
+/**
  * kthread_should_stop: should this kthread return now?
  *
  * When someone calls kthread_stop on your kthread, it will be woken
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 00a8a5738858..0ba3af7a1236 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -172,6 +172,13 @@ enum hsm_task_states {
         HSM_ST_ERR,
 };
 
+enum ata_completion_errors {
+        AC_ERR_OTHER            = (1 << 0),
+        AC_ERR_DEV              = (1 << 1),
+        AC_ERR_ATA_BUS          = (1 << 2),
+        AC_ERR_HOST_BUS         = (1 << 3),
+};
+
 /* forward declarations */
 struct scsi_device;
 struct ata_port_operations;
@@ -179,7 +186,7 @@ struct ata_port;
 struct ata_queued_cmd;
 
 /* typedefs */
-typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, u8 drv_stat);
+typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, unsigned int err_mask);
 
 struct ata_ioports {
         unsigned long           cmd_addr;
@@ -347,7 +354,6 @@ struct ata_port_operations {
         void (*exec_command)(struct ata_port *ap, const struct ata_taskfile *tf);
         u8   (*check_status)(struct ata_port *ap);
         u8   (*check_altstatus)(struct ata_port *ap);
-        u8   (*check_err)(struct ata_port *ap);
         void (*dev_select)(struct ata_port *ap, unsigned int device);
 
         void (*phy_reset) (struct ata_port *ap);
@@ -434,7 +440,6 @@ extern void ata_noop_dev_select (struct ata_port *ap, unsigned int device);
 extern void ata_std_dev_select (struct ata_port *ap, unsigned int device);
 extern u8 ata_check_status(struct ata_port *ap);
 extern u8 ata_altstatus(struct ata_port *ap);
-extern u8 ata_chk_err(struct ata_port *ap);
 extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
 extern int ata_port_start (struct ata_port *ap);
 extern void ata_port_stop (struct ata_port *ap);
@@ -455,7 +460,7 @@ extern void ata_bmdma_start (struct ata_queued_cmd *qc);
 extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
 extern u8   ata_bmdma_status(struct ata_port *ap);
 extern void ata_bmdma_irq_clear(struct ata_port *ap);
-extern void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat);
+extern void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask);
 extern void ata_eng_timeout(struct ata_port *ap);
 extern void ata_scsi_simulate(u16 *id, struct scsi_cmnd *cmd,
                               void (*done)(struct scsi_cmnd *));
@@ -718,4 +723,21 @@ static inline int ata_try_flush_cache(const struct ata_device *dev)
                ata_id_has_flush_ext(dev->id);
 }
 
+static inline unsigned int ac_err_mask(u8 status)
+{
+        if (status & ATA_BUSY)
+                return AC_ERR_ATA_BUS;
+        if (status & (ATA_ERR | ATA_DF))
+                return AC_ERR_DEV;
+        return 0;
+}
+
+static inline unsigned int __ac_err_mask(u8 status)
+{
+        unsigned int mask = ac_err_mask(status);
+        if (mask == 0)
+                return AC_ERR_OTHER;
+        return mask;
+}
+
 #endif /* __LINUX_LIBATA_H__ */
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 7af8cb836e78..8b67cf837ca9 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -154,6 +154,7 @@ struct mempolicy *get_vma_policy(struct task_struct *task,
 
 extern void numa_default_policy(void);
 extern void numa_policy_init(void);
+extern void numa_policy_rebind(const nodemask_t *old, const nodemask_t *new);
 extern struct mempolicy default_policy;
 
 #else
@@ -226,6 +227,11 @@ static inline void numa_default_policy(void)
 {
 }
 
+static inline void numa_policy_rebind(const nodemask_t *old,
+                                        const nodemask_t *new)
+{
+}
+
 #endif /* CONFIG_NUMA */
 #endif /* __KERNEL__ */
 
diff --git a/include/linux/module.h b/include/linux/module.h
index f05372b7fe77..84d75f3a8aca 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -554,7 +554,9 @@ static inline void MODULE_PARM_(void) { }
 #ifdef MODULE
 /* DEPRECATED: Do not use. */
 #define MODULE_PARM(var,type)                                               \
-struct obsolete_modparm __parm_##var __attribute__((section("__obsparm"))) = \
+extern struct obsolete_modparm __parm_##var \
+__attribute__((section("__obsparm"))); \
+struct obsolete_modparm __parm_##var = \
 { __stringify(var), type, &MODULE_PARM_ }; \
 __MODULE_PARM_TYPE(var, type);
 #else
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index 9a3d27257984..941da5c016a0 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -282,6 +282,17 @@ static inline u8 fat_attr(struct inode *inode)
                 MSDOS_I(inode)->i_attrs;
 }
 
+static inline unsigned char fat_checksum(const __u8 *name)
+{
+        unsigned char s = name[0];
+        s = (s<<7) + (s>>1) + name[1];  s = (s<<7) + (s>>1) + name[2];
+        s = (s<<7) + (s>>1) + name[3];  s = (s<<7) + (s>>1) + name[4];
+        s = (s<<7) + (s>>1) + name[5];  s = (s<<7) + (s>>1) + name[6];
+        s = (s<<7) + (s>>1) + name[7];  s = (s<<7) + (s>>1) + name[8];
+        s = (s<<7) + (s>>1) + name[9];  s = (s<<7) + (s>>1) + name[10];
+        return s;
+}
+
 static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus)
 {
         return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 142963f01d29..fc28841f3409 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -8,7 +8,10 @@
 #include <linux/config.h>
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/string.h>
+
 #include <linux/mtd/compatmac.h>
+
 #include <asm/unaligned.h>
 #include <asm/system.h>
 #include <asm/io.h>
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index e96fe9062500..4726ef7ba8e8 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -12,6 +12,8 @@
  * see bitmap_scnprintf() and bitmap_parse() in lib/bitmap.c.
  * For details of nodelist_scnprintf() and nodelist_parse(), see
  * bitmap_scnlistprintf() and bitmap_parselist(), also in bitmap.c.
+ * For details of node_remap(), see bitmap_bitremap in lib/bitmap.c.
+ * For details of nodes_remap(), see bitmap_remap in lib/bitmap.c.
  *
  * The available nodemask operations are:
  *
@@ -52,6 +54,8 @@
  * int nodemask_parse(ubuf, ulen, mask) Parse ascii string as nodemask
  * int nodelist_scnprintf(buf, len, mask) Format nodemask as list for printing
  * int nodelist_parse(buf, map)         Parse ascii string as nodelist
+ * int node_remap(oldbit, old, new)     newbit = map(old, new)(oldbit)
+ * int nodes_remap(dst, src, old, new)  *dst = map(old, new)(dst)
  *
  * for_each_node_mask(node, mask)       for-loop node over mask
  *
@@ -307,6 +311,22 @@ static inline int __nodelist_parse(const char *buf, nodemask_t *dstp, int nbits)
         return bitmap_parselist(buf, dstp->bits, nbits);
 }
 
+#define node_remap(oldbit, old, new) \
+                __node_remap((oldbit), &(old), &(new), MAX_NUMNODES)
+static inline int __node_remap(int oldbit,
+                const nodemask_t *oldp, const nodemask_t *newp, int nbits)
+{
+        return bitmap_bitremap(oldbit, oldp->bits, newp->bits, nbits);
+}
+
+#define nodes_remap(dst, src, old, new) \
+                __nodes_remap(&(dst), &(src), &(old), &(new), MAX_NUMNODES)
+static inline void __nodes_remap(nodemask_t *dstp, const nodemask_t *srcp,
+                const nodemask_t *oldp, const nodemask_t *newp, int nbits)
+{
+        bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits);
+}
+
 #if MAX_NUMNODES > 1
 #define for_each_node_mask(node, mask)                  \
         for ((node) = first_node(mask);                 \
diff --git a/include/linux/pm.h b/include/linux/pm.h
index c61d5de837ef..1514098d156d 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -170,6 +170,7 @@ typedef int __bitwise suspend_disk_method_t;
 
 struct pm_ops {
         suspend_disk_method_t pm_disk_mode;
+        int (*valid)(suspend_state_t state);
         int (*prepare)(suspend_state_t state);
         int (*enter)(suspend_state_t state);
         int (*finish)(suspend_state_t state);
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 70191a5a148f..cce25591eec2 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -275,6 +275,7 @@ static inline int rcu_pending(int cpu)
 extern void rcu_init(void);
 extern void rcu_check_callbacks(int cpu, int user);
 extern void rcu_restart_cpu(int cpu);
+extern long rcu_batches_completed(void);
 
 /* Exported interfaces */
 extern void FASTCALL(call_rcu(struct rcu_head *head, 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1c30bc308ef1..03b68a7b4b82 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -940,7 +940,7 @@ extern int set_cpus_allowed(task_t *p, cpumask_t new_mask);
 #else
 static inline int set_cpus_allowed(task_t *p, cpumask_t new_mask)
 {
-        if (!cpus_intersects(new_mask, cpu_online_map))
+        if (!cpu_isset(0, new_mask))
                 return -EINVAL;
         return 0;
 }
@@ -1084,6 +1084,11 @@ extern int do_sigaltstack(const stack_t __user *, stack_t __user *, unsigned lon
 #define SEND_SIG_PRIV   ((struct siginfo *) 1)
 #define SEND_SIG_FORCED ((struct siginfo *) 2)
 
+static inline int is_si_special(const struct siginfo *info)
+{
+        return info <= SEND_SIG_FORCED;
+}
+
 /* True if we are on the alternate signal stack.  */
 
 static inline int on_sig_stack(unsigned long sp)
@@ -1211,7 +1216,7 @@ extern void unhash_process(struct task_struct *p);
 /*
  * Protects ->fs, ->files, ->mm, ->ptrace, ->group_info, ->comm, keyring
  * subscriptions and synchronises with wait4().  Also used in procfs.  Also
- * pins the final release of task.io_context.
+ * pins the final release of task.io_context.  Also protects ->cpuset.
  *
  * Nests both inside and outside of read_lock(&tasklist_lock).
  * It must not be nested with write_lock_irq(&tasklist_lock),
diff --git a/include/linux/security.h b/include/linux/security.h
index dac956ed98f0..f7e0ae018712 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -30,6 +30,7 @@
 #include <linux/shm.h>
 #include <linux/msg.h>
 #include <linux/sched.h>
+#include <linux/key.h>
 
 struct ctl_table;
 
@@ -385,6 +386,9 @@ struct swap_info_struct;
  *      NULL to request the size of the buffer required.  @size indicates
  *      the size of @buffer in bytes.  Note that @name is the remainder
  *      of the attribute name after the security. prefix has been removed.
+ *      @err is the return value from the preceding fs getxattr call,
+ *      and can be used by the security module to determine whether it
+ *      should try and canonicalize the attribute value.
  *      Return number of bytes used/required on success.
  * @inode_setsecurity:
  *      Set the security label associated with @name for @inode from the
@@ -785,6 +789,27 @@ struct swap_info_struct;
  * @sk_free_security:
  *      Deallocate security structure.
  *
+ * Security hooks affecting all Key Management operations
+ *
+ * @key_alloc:
+ *      Permit allocation of a key and assign security data. Note that key does
+ *      not have a serial number assigned at this point.
+ *      @key points to the key.
+ *      Return 0 if permission is granted, -ve error otherwise.
+ * @key_free:
+ *      Notification of destruction; free security data.
+ *      @key points to the key.
+ *      No return value.
+ * @key_permission:
+ *      See whether a specific operational right is granted to a process on a
+ *      key.
+ *      @key_ref refers to the key (key pointer + possession attribute bit).
+ *      @context points to the process to provide the context against which to
+ *       evaluate the security data on the key.
+ *      @perm describes the combination of permissions required of this key.
+ *      Return 1 if permission granted, 0 if permission denied and -ve it the
+ *      normal permissions model should be effected.
+ *
  * Security hooks affecting all System V IPC operations.
  *
  * @ipc_permission:
@@ -1091,7 +1116,7 @@ struct security_operations {
         int (*inode_getxattr) (struct dentry *dentry, char *name);
         int (*inode_listxattr) (struct dentry *dentry);
         int (*inode_removexattr) (struct dentry *dentry, char *name);
-        int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size);
+        int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size, int err);
         int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
         int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
 
@@ -1213,6 +1238,17 @@ struct security_operations {
         int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
         void (*sk_free_security) (struct sock *sk);
 #endif  /* CONFIG_SECURITY_NETWORK */
+
+        /* key management security hooks */
+#ifdef CONFIG_KEYS
+        int (*key_alloc)(struct key *key);
+        void (*key_free)(struct key *key);
+        int (*key_permission)(key_ref_t key_ref,
+                              struct task_struct *context,
+                              key_perm_t perm);
+
+#endif  /* CONFIG_KEYS */
+
 };
 
 /* global variables */
@@ -1580,11 +1616,11 @@ static inline int security_inode_removexattr (struct dentry *dentry, char *name)
         return security_ops->inode_removexattr (dentry, name);
 }
 
-static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
+static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err)
 {
         if (unlikely (IS_PRIVATE (inode)))
                 return 0;
-        return security_ops->inode_getsecurity(inode, name, buffer, size);
+        return security_ops->inode_getsecurity(inode, name, buffer, size, err);
 }
 
 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
@@ -2222,7 +2258,7 @@ static inline int security_inode_removexattr (struct dentry *dentry, char *name)
         return cap_inode_removexattr(dentry, name);
 }
 
-static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
+static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err)
 {
         return -EOPNOTSUPP;
 }
@@ -2761,5 +2797,45 @@ static inline void security_sk_free(struct sock *sk)
 }
 #endif  /* CONFIG_SECURITY_NETWORK */
 
+#ifdef CONFIG_KEYS
+#ifdef CONFIG_SECURITY
+static inline int security_key_alloc(struct key *key)
+{
+        return security_ops->key_alloc(key);
+}
+
+static inline void security_key_free(struct key *key)
+{
+        security_ops->key_free(key);
+}
+
+static inline int security_key_permission(key_ref_t key_ref,
+                                          struct task_struct *context,
+                                          key_perm_t perm)
+{
+        return security_ops->key_permission(key_ref, context, perm);
+}
+
+#else
+
+static inline int security_key_alloc(struct key *key)
+{
+        return 0;
+}
+
+static inline void security_key_free(struct key *key)
+{
+}
+
+static inline int security_key_permission(key_ref_t key_ref,
+                                          struct task_struct *context,
+                                          key_perm_t perm)
+{
+        return 0;
+}
+
+#endif
+#endif /* CONFIG_KEYS */
+
 #endif /* ! __LINUX_SECURITY_H */
 
diff --git a/include/linux/serial.h b/include/linux/serial.h
index 12cd9cf65e8f..33fc8cb8ddfb 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -11,6 +11,7 @@
 #define _LINUX_SERIAL_H
 
 #ifdef __KERNEL__
+#include <linux/types.h>
 #include <asm/page.h>
 
 /*
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 7be18b5e2fb4..5dd5f02c5c5f 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -25,7 +25,6 @@
 
 struct sigqueue {
         struct list_head list;
-        spinlock_t *lock;
         int flags;
         siginfo_t info;
         struct user_struct *user;
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index cdc99a27840d..0e9682c9def5 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -171,23 +171,42 @@ extern int __lockfunc generic__raw_read_trylock(raw_rwlock_t *lock);
 #define write_lock_irq(lock)            _write_lock_irq(lock)
 #define write_lock_bh(lock)             _write_lock_bh(lock)
 
-#define spin_unlock(lock)               _spin_unlock(lock)
-#define write_unlock(lock)              _write_unlock(lock)
-#define read_unlock(lock)               _read_unlock(lock)
+/*
+ * We inline the unlock functions in the nondebug case:
+ */
+#if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP)
+# define spin_unlock(lock)              _spin_unlock(lock)
+# define read_unlock(lock)              _read_unlock(lock)
+# define write_unlock(lock)             _write_unlock(lock)
+#else
+# define spin_unlock(lock)              __raw_spin_unlock(&(lock)->raw_lock)
+# define read_unlock(lock)              __raw_read_unlock(&(lock)->raw_lock)
+# define write_unlock(lock)             __raw_write_unlock(&(lock)->raw_lock)
+#endif
+
+#if defined(CONFIG_DEBUG_SPINLOCK) || defined(CONFIG_PREEMPT) || !defined(CONFIG_SMP)
+# define spin_unlock_irq(lock)          _spin_unlock_irq(lock)
+# define read_unlock_irq(lock)          _read_unlock_irq(lock)
+# define write_unlock_irq(lock)         _write_unlock_irq(lock)
+#else
+# define spin_unlock_irq(lock) \
+    do { __raw_spin_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0)
+# define read_unlock_irq(lock) \
+    do { __raw_read_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0)
+# define write_unlock_irq(lock) \
+    do { __raw_write_unlock(&(lock)->raw_lock); local_irq_enable(); } while (0)
+#endif
 
 #define spin_unlock_irqrestore(lock, flags) \
                                         _spin_unlock_irqrestore(lock, flags)
-#define spin_unlock_irq(lock)           _spin_unlock_irq(lock)
 #define spin_unlock_bh(lock)            _spin_unlock_bh(lock)
 
 #define read_unlock_irqrestore(lock, flags) \
                                         _read_unlock_irqrestore(lock, flags)
-#define read_unlock_irq(lock)           _read_unlock_irq(lock)
 #define read_unlock_bh(lock)            _read_unlock_bh(lock)
 
 #define write_unlock_irqrestore(lock, flags) \
                                         _write_unlock_irqrestore(lock, flags)
-#define write_unlock_irq(lock)          _write_unlock_irq(lock)
 #define write_unlock_bh(lock)           _write_unlock_bh(lock)
 
 #define spin_trylock_bh(lock)           __cond_lock(_spin_trylock_bh(lock))
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index ba448c760168..a61c04f804b2 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -71,7 +71,12 @@ void restore_processor_state(void);
 struct saved_context;
 void __save_processor_state(struct saved_context *ctxt);
 void __restore_processor_state(struct saved_context *ctxt);
-extern unsigned long get_usable_page(gfp_t gfp_mask);
-extern void free_eaten_memory(void);
+unsigned long get_safe_page(gfp_t gfp_mask);
+
+/*
+ * XXX: We try to keep some more pages free so that I/O operations succeed
+ * without paging. Might this be more?
+ */
+#define PAGES_FOR_IO    512
 
 #endif /* _LINUX_SWSUSP_H */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a6f03e473737..c7007b1db91d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -491,6 +491,7 @@ asmlinkage long sys_nfsservctl(int cmd,
 asmlinkage long sys_syslog(int type, char __user *buf, int len);
 asmlinkage long sys_uselib(const char __user *library);
 asmlinkage long sys_ni_syscall(void);
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data);
 
 asmlinkage long sys_add_key(const char __user *_type,
                             const char __user *_description,
diff --git a/include/linux/textsearch.h b/include/linux/textsearch.h
index fc5bb4e91a58..7dac8f04d28e 100644
--- a/include/linux/textsearch.h
+++ b/include/linux/textsearch.h
@@ -8,6 +8,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 
 struct ts_config;
 
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 3340f3bd135d..72f3a7781106 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -12,16 +12,12 @@ struct timer_list {
         struct list_head entry;
         unsigned long expires;
 
-        unsigned long magic;
-
         void (*function)(unsigned long);
         unsigned long data;
 
         struct timer_base_s *base;
 };
 
-#define TIMER_MAGIC     0x4b87ad6e
-
 extern struct timer_base_s __init_timer_base;
 
 #define TIMER_INITIALIZER(_function, _expires, _data) {         \
@@ -29,7 +25,6 @@ extern struct timer_base_s __init_timer_base;
                 .expires = (_expires),                          \
                 .data = (_data),                                \
                 .base = &__init_timer_base,                     \
-                .magic = TIMER_MAGIC,                           \
         }
 
 #define DEFINE_TIMER(_name, _function, _expires, _data)         \
@@ -38,6 +33,15 @@ extern struct timer_base_s __init_timer_base;
 
 void fastcall init_timer(struct timer_list * timer);
 
+static inline void setup_timer(struct timer_list * timer,
+                                void (*function)(unsigned long),
+                                unsigned long data)
+{
+        timer->function = function;
+        timer->data = data;
+        init_timer(timer);
+}
+
 /***
  * timer_pending - is a timer pending?
  * @timer: the timer in question
@@ -74,8 +78,9 @@ extern unsigned long next_timer_interrupt(void);
  * Timers with an ->expired field in the past will be executed in the next
  * timer tick.
  */
-static inline void add_timer(struct timer_list * timer)
+static inline void add_timer(struct timer_list *timer)
 {
+        BUG_ON(timer_pending(timer));
         __mod_timer(timer, timer->expires);
 }
 
diff --git a/include/linux/timex.h b/include/linux/timex.h
index 7e050a2cc35b..04a4a8cb4ed3 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -282,6 +282,13 @@ static inline int ntp_synced(void)
         return !(time_status & STA_UNSYNC);
 }
 
+/* Required to safely shift negative values */
+#define shift_right(x, s) ({    \
+        __typeof__(x) __x = (x);        \
+        __typeof__(s) __s = (s);        \
+        __x < 0 ? -(-__x >> __s) : __x >> __s;  \
+})
+
 
 #ifdef CONFIG_TIME_INTERPOLATION
 
diff --git a/include/linux/zutil.h b/include/linux/zutil.h
index fdfd5ed41ec4..ee0c59cf2136 100644
--- a/include/linux/zutil.h
+++ b/include/linux/zutil.h
@@ -15,7 +15,6 @@
 
 #include <linux/zlib.h>
 #include <linux/string.h>
-#include <linux/errno.h>
 #include <linux/kernel.h>
 
 typedef unsigned char  uch;
diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h
index c8592c7e8eaa..e788bbc5657d 100644
--- a/include/pcmcia/ss.h
+++ b/include/pcmcia/ss.h
@@ -17,6 +17,7 @@
 
 #include <linux/config.h>
 #include <linux/device.h>
+#include <linux/sched.h>        /* task_struct, completion */
 
 #include <pcmcia/cs_types.h>
 #include <pcmcia/cs.h>
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index e6b61fab66dd..7529f4388bb4 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -4,6 +4,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/list.h>
 #include <linux/types.h>
+#include <linux/timer.h>
 
 struct request;
 struct scatterlist;
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index b0d445437372..c04405bead2d 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -28,6 +28,7 @@
 #define SCSI_TRANSPORT_FC_H
 
 #include <linux/config.h>
+#include <linux/sched.h>
 
 struct scsi_transport_template;
 
diff --git a/init/Kconfig b/init/Kconfig
index d5a1a1228fab..3dcbd5bfd498 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -60,8 +60,8 @@ config INIT_ENV_ARG_LIMIT
         default 32 if !USERMODE
         default 128 if USERMODE
         help
-          This is the value of the two limits on the number of argument and of
-          env.var passed to init from the kernel command line.
+          Maximum of each of the number of arguments and environment
+          variables passed to init from the kernel command line.
 
 endmenu
 
diff --git a/init/main.c b/init/main.c
index f142d4035341..4075d97e94b1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -64,10 +64,6 @@
 #endif
 #endif
 
-#ifdef CONFIG_X86_LOCAL_APIC
-#include <asm/smp.h>
-#endif
-
 /*
  * Versions of gcc older than that listed below may actually compile
  * and link okay, but the end product can have subtle run time bugs.
@@ -314,14 +310,7 @@ extern void setup_arch(char **);
 
 #ifndef CONFIG_SMP
 
-#ifdef CONFIG_X86_LOCAL_APIC
-static void __init smp_init(void)
-{
-        APIC_init_uniprocessor();
-}
-#else
 #define smp_init()      do { } while (0)
-#endif
 
 static inline void setup_per_cpu_areas(void) { }
 static inline void smp_prepare_cpus(unsigned int maxcpus) { }
diff --git a/kernel/Makefile b/kernel/Makefile
index ff4dc02ce170..4f5a1453093a 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -22,7 +22,6 @@ obj-$(CONFIG_KEXEC) += kexec.o
 obj-$(CONFIG_COMPAT) += compat.o
 obj-$(CONFIG_CPUSETS) += cpuset.o
 obj-$(CONFIG_IKCONFIG) += configs.o
-obj-$(CONFIG_IKCONFIG_PROC) += configs.o
 obj-$(CONFIG_STOP_MACHINE) += stop_machine.o
 obj-$(CONFIG_AUDIT) += audit.o
 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o
@@ -32,6 +31,7 @@ obj-$(CONFIG_DETECT_SOFTLOCKUP) += softlockup.o
 obj-$(CONFIG_GENERIC_HARDIRQS) += irq/
 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
 obj-$(CONFIG_SECCOMP) += seccomp.o
+obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
 
 ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y)
 # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 53d8263ae12e..3619e939182e 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -17,6 +17,7 @@
 
 /* This protects CPUs going up and down... */
 DECLARE_MUTEX(cpucontrol);
+EXPORT_SYMBOL_GPL(cpucontrol);
 
 static struct notifier_block *cpu_chain;
 
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 28176d083f7b..5a737ed9dac7 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>
 #include <linux/kmod.h>
 #include <linux/list.h>
+#include <linux/mempolicy.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/mount.h>
@@ -60,6 +61,9 @@ struct cpuset {
         cpumask_t cpus_allowed;         /* CPUs allowed to tasks in cpuset */
         nodemask_t mems_allowed;        /* Memory Nodes allowed to tasks */
 
+        /*
+         * Count is atomic so can incr (fork) or decr (exit) without a lock.
+         */
         atomic_t count;                 /* count tasks using this cpuset */
 
         /*
@@ -142,80 +146,91 @@ static struct vfsmount *cpuset_mount;
 static struct super_block *cpuset_sb = NULL;
 
 /*
- * cpuset_sem should be held by anyone who is depending on the children
- * or sibling lists of any cpuset, or performing non-atomic operations
- * on the flags or *_allowed values of a cpuset, such as raising the
- * CS_REMOVED flag bit iff it is not already raised, or reading and
- * conditionally modifying the *_allowed values.  One kernel global
- * cpuset semaphore should be sufficient - these things don't change
- * that much.
- *
- * The code that modifies cpusets holds cpuset_sem across the entire
- * operation, from cpuset_common_file_write() down, single threading
- * all cpuset modifications (except for counter manipulations from
- * fork and exit) across the system.  This presumes that cpuset
- * modifications are rare - better kept simple and safe, even if slow.
- *
- * The code that reads cpusets, such as in cpuset_common_file_read()
- * and below, only holds cpuset_sem across small pieces of code, such
- * as when reading out possibly multi-word cpumasks and nodemasks, as
- * the risks are less, and the desire for performance a little greater.
- * The proc_cpuset_show() routine needs to hold cpuset_sem to insure
- * that no cs->dentry is NULL, as it walks up the cpuset tree to root.
- *
- * The hooks from fork and exit, cpuset_fork() and cpuset_exit(), don't
- * (usually) grab cpuset_sem.  These are the two most performance
- * critical pieces of code here.  The exception occurs on exit(),
- * when a task in a notify_on_release cpuset exits.  Then cpuset_sem
+ * We have two global cpuset semaphores below.  They can nest.
+ * It is ok to first take manage_sem, then nest callback_sem.  We also
+ * require taking task_lock() when dereferencing a tasks cpuset pointer.
+ * See "The task_lock() exception", at the end of this comment.
+ *
+ * A task must hold both semaphores to modify cpusets.  If a task
+ * holds manage_sem, then it blocks others wanting that semaphore,
+ * ensuring that it is the only task able to also acquire callback_sem
+ * and be able to modify cpusets.  It can perform various checks on
+ * the cpuset structure first, knowing nothing will change.  It can
+ * also allocate memory while just holding manage_sem.  While it is
+ * performing these checks, various callback routines can briefly
+ * acquire callback_sem to query cpusets.  Once it is ready to make
+ * the changes, it takes callback_sem, blocking everyone else.
+ *
+ * Calls to the kernel memory allocator can not be made while holding
+ * callback_sem, as that would risk double tripping on callback_sem
+ * from one of the callbacks into the cpuset code from within
+ * __alloc_pages().
+ *
+ * If a task is only holding callback_sem, then it has read-only
+ * access to cpusets.
+ *
+ * The task_struct fields mems_allowed and mems_generation may only
+ * be accessed in the context of that task, so require no locks.
+ *
+ * Any task can increment and decrement the count field without lock.
+ * So in general, code holding manage_sem or callback_sem can't rely
+ * on the count field not changing.  However, if the count goes to
+ * zero, then only attach_task(), which holds both semaphores, can
+ * increment it again.  Because a count of zero means that no tasks
+ * are currently attached, therefore there is no way a task attached
+ * to that cpuset can fork (the other way to increment the count).
+ * So code holding manage_sem or callback_sem can safely assume that
+ * if the count is zero, it will stay zero.  Similarly, if a task
+ * holds manage_sem or callback_sem on a cpuset with zero count, it
+ * knows that the cpuset won't be removed, as cpuset_rmdir() needs
+ * both of those semaphores.
+ *
+ * A possible optimization to improve parallelism would be to make
+ * callback_sem a R/W semaphore (rwsem), allowing the callback routines
+ * to proceed in parallel, with read access, until the holder of
+ * manage_sem needed to take this rwsem for exclusive write access
+ * and modify some cpusets.
+ *
+ * The cpuset_common_file_write handler for operations that modify
+ * the cpuset hierarchy holds manage_sem across the entire operation,
+ * single threading all such cpuset modifications across the system.
+ *
+ * The cpuset_common_file_read() handlers only hold callback_sem across
+ * small pieces of code, such as when reading out possibly multi-word
+ * cpumasks and nodemasks.
+ *
+ * The fork and exit callbacks cpuset_fork() and cpuset_exit(), don't
+ * (usually) take either semaphore.  These are the two most performance
+ * critical pieces of code here.  The exception occurs on cpuset_exit(),
+ * when a task in a notify_on_release cpuset exits.  Then manage_sem
  * is taken, and if the cpuset count is zero, a usermode call made
  * to /sbin/cpuset_release_agent with the name of the cpuset (path
  * relative to the root of cpuset file system) as the argument.
  *
- * A cpuset can only be deleted if both its 'count' of using tasks is
- * zero, and its list of 'children' cpusets is empty.  Since all tasks
- * in the system use _some_ cpuset, and since there is always at least
- * one task in the system (init, pid == 1), therefore, top_cpuset
- * always has either children cpusets and/or using tasks.  So no need
- * for any special hack to ensure that top_cpuset cannot be deleted.
+ * A cpuset can only be deleted if both its 'count' of using tasks
+ * is zero, and its list of 'children' cpusets is empty.  Since all
+ * tasks in the system use _some_ cpuset, and since there is always at
+ * least one task in the system (init, pid == 1), therefore, top_cpuset
+ * always has either children cpusets and/or using tasks.  So we don't
+ * need a special hack to ensure that top_cpuset cannot be deleted.
+ *
+ * The above "Tale of Two Semaphores" would be complete, but for:
+ *
+ *      The task_lock() exception
+ *
+ * The need for this exception arises from the action of attach_task(),
+ * which overwrites one tasks cpuset pointer with another.  It does
+ * so using both semaphores, however there are several performance
+ * critical places that need to reference task->cpuset without the
+ * expense of grabbing a system global semaphore.  Therefore except as
+ * noted below, when dereferencing or, as in attach_task(), modifying
+ * a tasks cpuset pointer we use task_lock(), which acts on a spinlock
+ * (task->alloc_lock) already in the task_struct routinely used for
+ * such matters.
  */
 
-static DECLARE_MUTEX(cpuset_sem);
-static struct task_struct *cpuset_sem_owner;
-static int cpuset_sem_depth;
-
-/*
- * The global cpuset semaphore cpuset_sem can be needed by the
- * memory allocator to update a tasks mems_allowed (see the calls
- * to cpuset_update_current_mems_allowed()) or to walk up the
- * cpuset hierarchy to find a mem_exclusive cpuset see the calls
- * to cpuset_excl_nodes_overlap()).
- *
- * But if the memory allocation is being done by cpuset.c code, it
- * usually already holds cpuset_sem.  Double tripping on a kernel
- * semaphore deadlocks the current task, and any other task that
- * subsequently tries to obtain the lock.
- *
- * Run all up's and down's on cpuset_sem through the following
- * wrappers, which will detect this nested locking, and avoid
- * deadlocking.
- */
-
-static inline void cpuset_down(struct semaphore *psem)
-{
-        if (cpuset_sem_owner != current) {
-                down(psem);
-                cpuset_sem_owner = current;
-        }
-        cpuset_sem_depth++;
-}
-
-static inline void cpuset_up(struct semaphore *psem)
-{
-        if (--cpuset_sem_depth == 0) {
-                cpuset_sem_owner = NULL;
-                up(psem);
-        }
-}
+static DECLARE_MUTEX(manage_sem);
+static DECLARE_MUTEX(callback_sem);
 
 /*
  * A couple of forward declarations required, due to cyclic reference loop:
@@ -390,7 +405,7 @@ static inline struct cftype *__d_cft(struct dentry *dentry)
 }
 
 /*
- * Call with cpuset_sem held.  Writes path of cpuset into buf.
+ * Call with manage_sem held.  Writes path of cpuset into buf.
  * Returns 0 on success, -errno on error.
  */
 
@@ -442,10 +457,11 @@ static int cpuset_path(const struct cpuset *cs, char *buf, int buflen)
  * status of the /sbin/cpuset_release_agent task, so no sense holding
  * our caller up for that.
  *
- * The simple act of forking that task might require more memory,
- * which might need cpuset_sem.  So this routine must be called while
- * cpuset_sem is not held, to avoid a possible deadlock.  See also
- * comments for check_for_release(), below.
+ * When we had only one cpuset semaphore, we had to call this
+ * without holding it, to avoid deadlock when call_usermodehelper()
+ * allocated memory.  With two locks, we could now call this while
+ * holding manage_sem, but we still don't, so as to minimize
+ * the time manage_sem is held.
  */
 
 static void cpuset_release_agent(const char *pathbuf)
@@ -477,15 +493,15 @@ static void cpuset_release_agent(const char *pathbuf)
  * cs is notify_on_release() and now both the user count is zero and
  * the list of children is empty, prepare cpuset path in a kmalloc'd
  * buffer, to be returned via ppathbuf, so that the caller can invoke
- * cpuset_release_agent() with it later on, once cpuset_sem is dropped.
- * Call here with cpuset_sem held.
+ * cpuset_release_agent() with it later on, once manage_sem is dropped.
+ * Call here with manage_sem held.
  *
  * This check_for_release() routine is responsible for kmalloc'ing
  * pathbuf.  The above cpuset_release_agent() is responsible for
  * kfree'ing pathbuf.  The caller of these routines is responsible
  * for providing a pathbuf pointer, initialized to NULL, then
- * calling check_for_release() with cpuset_sem held and the address
- * of the pathbuf pointer, then dropping cpuset_sem, then calling
+ * calling check_for_release() with manage_sem held and the address
+ * of the pathbuf pointer, then dropping manage_sem, then calling
  * cpuset_release_agent() with pathbuf, as set by check_for_release().
  */
 
@@ -516,7 +532,7 @@ static void check_for_release(struct cpuset *cs, char **ppathbuf)
  * One way or another, we guarantee to return some non-empty subset
  * of cpu_online_map.
  *
- * Call with cpuset_sem held.
+ * Call with callback_sem held.
  */
 
 static void guarantee_online_cpus(const struct cpuset *cs, cpumask_t *pmask)
@@ -540,7 +556,7 @@ static void guarantee_online_cpus(const struct cpuset *cs, cpumask_t *pmask)
  * One way or another, we guarantee to return some non-empty subset
  * of node_online_map.
  *
- * Call with cpuset_sem held.
+ * Call with callback_sem held.
  */
 
 static void guarantee_online_mems(const struct cpuset *cs, nodemask_t *pmask)
@@ -555,22 +571,47 @@ static void guarantee_online_mems(const struct cpuset *cs, nodemask_t *pmask)
 }
 
 /*
- * Refresh current tasks mems_allowed and mems_generation from
- * current tasks cpuset.  Call with cpuset_sem held.
+ * Refresh current tasks mems_allowed and mems_generation from current
+ * tasks cpuset.
  *
- * This routine is needed to update the per-task mems_allowed
- * data, within the tasks context, when it is trying to allocate
- * memory (in various mm/mempolicy.c routines) and notices
- * that some other task has been modifying its cpuset.
+ * Call without callback_sem or task_lock() held.  May be called with
+ * or without manage_sem held.  Will acquire task_lock() and might
+ * acquire callback_sem during call.
+ *
+ * The task_lock() is required to dereference current->cpuset safely.
+ * Without it, we could pick up the pointer value of current->cpuset
+ * in one instruction, and then attach_task could give us a different
+ * cpuset, and then the cpuset we had could be removed and freed,
+ * and then on our next instruction, we could dereference a no longer
+ * valid cpuset pointer to get its mems_generation field.
+ *
+ * This routine is needed to update the per-task mems_allowed data,
+ * within the tasks context, when it is trying to allocate memory
+ * (in various mm/mempolicy.c routines) and notices that some other
+ * task has been modifying its cpuset.
  */
 
 static void refresh_mems(void)
 {
-        struct cpuset *cs = current->cpuset;
+        int my_cpusets_mem_gen;
+
+        task_lock(current);
+        my_cpusets_mem_gen = current->cpuset->mems_generation;
+        task_unlock(current);
 
-        if (current->cpuset_mems_generation != cs->mems_generation) {
+        if (current->cpuset_mems_generation != my_cpusets_mem_gen) {
+                struct cpuset *cs;
+                nodemask_t oldmem = current->mems_allowed;
+
+                down(&callback_sem);
+                task_lock(current);
+                cs = current->cpuset;
                 guarantee_online_mems(cs, &current->mems_allowed);
                 current->cpuset_mems_generation = cs->mems_generation;
+                task_unlock(current);
+                up(&callback_sem);
+                if (!nodes_equal(oldmem, current->mems_allowed))
+                        numa_policy_rebind(&oldmem, &current->mems_allowed);
         }
 }
 
@@ -579,7 +620,7 @@ static void refresh_mems(void)
  *
  * One cpuset is a subset of another if all its allowed CPUs and
  * Memory Nodes are a subset of the other, and its exclusive flags
- * are only set if the other's are set.
+ * are only set if the other's are set.  Call holding manage_sem.
  */
 
 static int is_cpuset_subset(const struct cpuset *p, const struct cpuset *q)
@@ -597,7 +638,7 @@ static int is_cpuset_subset(const struct cpuset *p, const struct cpuset *q)
  * If we replaced the flag and mask values of the current cpuset
  * (cur) with those values in the trial cpuset (trial), would
  * our various subset and exclusive rules still be valid?  Presumes
- * cpuset_sem held.
+ * manage_sem held.
  *
  * 'cur' is the address of an actual, in-use cpuset.  Operations
  * such as list traversal that depend on the actual address of the
@@ -651,7 +692,7 @@ static int validate_change(const struct cpuset *cur, const struct cpuset *trial)
  *    exclusive child cpusets
  * Build these two partitions by calling partition_sched_domains
  *
- * Call with cpuset_sem held.  May nest a call to the
+ * Call with manage_sem held.  May nest a call to the
  * lock_cpu_hotplug()/unlock_cpu_hotplug() pair.
  */
 
@@ -696,6 +737,10 @@ static void update_cpu_domains(struct cpuset *cur)
         unlock_cpu_hotplug();
 }
 
+/*
+ * Call with manage_sem held.  May take callback_sem during call.
+ */
+
 static int update_cpumask(struct cpuset *cs, char *buf)
 {
         struct cpuset trialcs;
@@ -712,12 +757,18 @@ static int update_cpumask(struct cpuset *cs, char *buf)
         if (retval < 0)
                 return retval;
         cpus_unchanged = cpus_equal(cs->cpus_allowed, trialcs.cpus_allowed);
+        down(&callback_sem);
         cs->cpus_allowed = trialcs.cpus_allowed;
+        up(&callback_sem);
         if (is_cpu_exclusive(cs) && !cpus_unchanged)
                 update_cpu_domains(cs);
         return 0;
 }
 
+/*
+ * Call with manage_sem held.  May take callback_sem during call.
+ */
+
 static int update_nodemask(struct cpuset *cs, char *buf)
 {
         struct cpuset trialcs;
@@ -732,9 +783,11 @@ static int update_nodemask(struct cpuset *cs, char *buf)
                 return -ENOSPC;
         retval = validate_change(cs, &trialcs);
         if (retval == 0) {
+                down(&callback_sem);
                 cs->mems_allowed = trialcs.mems_allowed;
                 atomic_inc(&cpuset_mems_generation);
                 cs->mems_generation = atomic_read(&cpuset_mems_generation);
+                up(&callback_sem);
         }
         return retval;
 }
@@ -745,6 +798,8 @@ static int update_nodemask(struct cpuset *cs, char *buf)
  *                                              CS_NOTIFY_ON_RELEASE)
  * cs:  the cpuset to update
  * buf: the buffer where we read the 0 or 1
+ *
+ * Call with manage_sem held.
  */
 
 static int update_flag(cpuset_flagbits_t bit, struct cpuset *cs, char *buf)
@@ -766,16 +821,27 @@ static int update_flag(cpuset_flagbits_t bit, struct cpuset *cs, char *buf)
                 return err;
         cpu_exclusive_changed =
                 (is_cpu_exclusive(cs) != is_cpu_exclusive(&trialcs));
+        down(&callback_sem);
         if (turning_on)
                 set_bit(bit, &cs->flags);
         else
                 clear_bit(bit, &cs->flags);
+        up(&callback_sem);
 
         if (cpu_exclusive_changed)
                 update_cpu_domains(cs);
         return 0;
 }
 
+/*
+ * Attack task specified by pid in 'pidbuf' to cpuset 'cs', possibly
+ * writing the path of the old cpuset in 'ppathbuf' if it needs to be
+ * notified on release.
+ *
+ * Call holding manage_sem.  May take callback_sem and task_lock of
+ * the task 'pid' during call.
+ */
+
 static int attach_task(struct cpuset *cs, char *pidbuf, char **ppathbuf)
 {
         pid_t pid;
@@ -792,7 +858,7 @@ static int attach_task(struct cpuset *cs, char *pidbuf, char **ppathbuf)
                 read_lock(&tasklist_lock);
 
                 tsk = find_task_by_pid(pid);
-                if (!tsk) {
+                if (!tsk || tsk->flags & PF_EXITING) {
                         read_unlock(&tasklist_lock);
                         return -ESRCH;
                 }
@@ -810,10 +876,13 @@ static int attach_task(struct cpuset *cs, char *pidbuf, char **ppathbuf)
                 get_task_struct(tsk);
         }
 
+        down(&callback_sem);
+
         task_lock(tsk);
         oldcs = tsk->cpuset;
         if (!oldcs) {
                 task_unlock(tsk);
+                up(&callback_sem);
                 put_task_struct(tsk);
                 return -ESRCH;
         }
@@ -824,6 +893,7 @@ static int attach_task(struct cpuset *cs, char *pidbuf, char **ppathbuf)
         guarantee_online_cpus(cs, &cpus);
         set_cpus_allowed(tsk, cpus);
 
+        up(&callback_sem);
         put_task_struct(tsk);
         if (atomic_dec_and_test(&oldcs->count))
                 check_for_release(oldcs, ppathbuf);
@@ -867,7 +937,7 @@ static ssize_t cpuset_common_file_write(struct file *file, const char __user *us
         }
         buffer[nbytes] = 0;     /* nul-terminate */
 
-        cpuset_down(&cpuset_sem);
+        down(&manage_sem);
 
         if (is_removed(cs)) {
                 retval = -ENODEV;
@@ -901,7 +971,7 @@ static ssize_t cpuset_common_file_write(struct file *file, const char __user *us
         if (retval == 0)
                 retval = nbytes;
 out2:
-        cpuset_up(&cpuset_sem);
+        up(&manage_sem);
         cpuset_release_agent(pathbuf);
 out1:
         kfree(buffer);
@@ -941,9 +1011,9 @@ static int cpuset_sprintf_cpulist(char *page, struct cpuset *cs)
 {
         cpumask_t mask;
 
-        cpuset_down(&cpuset_sem);
+        down(&callback_sem);
         mask = cs->cpus_allowed;
-        cpuset_up(&cpuset_sem);
+        up(&callback_sem);
 
         return cpulist_scnprintf(page, PAGE_SIZE, mask);
 }
@@ -952,9 +1022,9 @@ static int cpuset_sprintf_memlist(char *page, struct cpuset *cs)
 {
         nodemask_t mask;
 
-        cpuset_down(&cpuset_sem);
+        down(&callback_sem);
         mask = cs->mems_allowed;
-        cpuset_up(&cpuset_sem);
+        up(&callback_sem);
 
         return nodelist_scnprintf(page, PAGE_SIZE, mask);
 }
@@ -995,7 +1065,6 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf,
                 goto out;
         }
         *s++ = '\n';
-        *s = '\0';
 
         retval = simple_read_from_buffer(buf, nbytes, ppos, page, s - page);
 out:
@@ -1048,6 +1117,21 @@ static int cpuset_file_release(struct inode *inode, struct file *file)
         return 0;
 }
 
+/*
+ * cpuset_rename - Only allow simple rename of directories in place.
+ */
+static int cpuset_rename(struct inode *old_dir, struct dentry *old_dentry,
+                  struct inode *new_dir, struct dentry *new_dentry)
+{
+        if (!S_ISDIR(old_dentry->d_inode->i_mode))
+                return -ENOTDIR;
+        if (new_dentry->d_inode)
+                return -EEXIST;
+        if (old_dir != new_dir)
+                return -EIO;
+        return simple_rename(old_dir, old_dentry, new_dir, new_dentry);
+}
+
 static struct file_operations cpuset_file_operations = {
         .read = cpuset_file_read,
         .write = cpuset_file_write,
@@ -1060,6 +1144,7 @@ static struct inode_operations cpuset_dir_inode_operations = {
         .lookup = simple_lookup,
         .mkdir = cpuset_mkdir,
         .rmdir = cpuset_rmdir,
+        .rename = cpuset_rename,
 };
 
 static int cpuset_create_file(struct dentry *dentry, int mode)
@@ -1163,7 +1248,9 @@ struct ctr_struct {
 
 /*
  * Load into 'pidarray' up to 'npids' of the tasks using cpuset 'cs'.
- * Return actual number of pids loaded.
+ * Return actual number of pids loaded.  No need to task_lock(p)
+ * when reading out p->cpuset, as we don't really care if it changes
+ * on the next cycle, and we are not going to try to dereference it.
  */
 static inline int pid_array_load(pid_t *pidarray, int npids, struct cpuset *cs)
 {
@@ -1205,6 +1292,12 @@ static int pid_array_to_buf(char *buf, int sz, pid_t *a, int npids)
         return cnt;
 }
 
+/*
+ * Handle an open on 'tasks' file.  Prepare a buffer listing the
+ * process id's of tasks currently attached to the cpuset being opened.
+ *
+ * Does not require any specific cpuset semaphores, and does not take any.
+ */
 static int cpuset_tasks_open(struct inode *unused, struct file *file)
 {
         struct cpuset *cs = __d_cs(file->f_dentry->d_parent);
@@ -1352,7 +1445,8 @@ static long cpuset_create(struct cpuset *parent, const char *name, int mode)
         if (!cs)
                 return -ENOMEM;
 
-        cpuset_down(&cpuset_sem);
+        down(&manage_sem);
+        refresh_mems();
         cs->flags = 0;
         if (notify_on_release(parent))
                 set_bit(CS_NOTIFY_ON_RELEASE, &cs->flags);
@@ -1366,25 +1460,27 @@ static long cpuset_create(struct cpuset *parent, const char *name, int mode)
 
         cs->parent = parent;
 
+        down(&callback_sem);
         list_add(&cs->sibling, &cs->parent->children);
+        up(&callback_sem);
 
         err = cpuset_create_dir(cs, name, mode);
         if (err < 0)
                 goto err;
 
         /*
-         * Release cpuset_sem before cpuset_populate_dir() because it
+         * Release manage_sem before cpuset_populate_dir() because it
          * will down() this new directory's i_sem and if we race with
          * another mkdir, we might deadlock.
          */
-        cpuset_up(&cpuset_sem);
+        up(&manage_sem);
 
         err = cpuset_populate_dir(cs->dentry);
         /* If err < 0, we have a half-filled directory - oh well ;) */
         return 0;
 err:
         list_del(&cs->sibling);
-        cpuset_up(&cpuset_sem);
+        up(&manage_sem);
         kfree(cs);
         return err;
 }
@@ -1406,29 +1502,32 @@ static int cpuset_rmdir(struct inode *unused_dir, struct dentry *dentry)
 
         /* the vfs holds both inode->i_sem already */
 
-        cpuset_down(&cpuset_sem);
+        down(&manage_sem);
+        refresh_mems();
         if (atomic_read(&cs->count) > 0) {
-                cpuset_up(&cpuset_sem);
+                up(&manage_sem);
                 return -EBUSY;
         }
         if (!list_empty(&cs->children)) {
-                cpuset_up(&cpuset_sem);
+                up(&manage_sem);
                 return -EBUSY;
         }
         parent = cs->parent;
+        down(&callback_sem);
         set_bit(CS_REMOVED, &cs->flags);
         if (is_cpu_exclusive(cs))
                 update_cpu_domains(cs);
         list_del(&cs->sibling); /* delete my sibling from parent->children */
-        if (list_empty(&parent->children))
-                check_for_release(parent, &pathbuf);
         spin_lock(&cs->dentry->d_lock);
         d = dget(cs->dentry);
         cs->dentry = NULL;
         spin_unlock(&d->d_lock);
         cpuset_d_remove_dir(d);
         dput(d);
-        cpuset_up(&cpuset_sem);
+        up(&callback_sem);
+        if (list_empty(&parent->children))
+                check_for_release(parent, &pathbuf);
+        up(&manage_sem);
         cpuset_release_agent(pathbuf);
         return 0;
 }
@@ -1488,16 +1587,26 @@ void __init cpuset_init_smp(void)
  * cpuset_fork - attach newly forked task to its parents cpuset.
  * @tsk: pointer to task_struct of forking parent process.
  *
- * Description: By default, on fork, a task inherits its
- * parent's cpuset.  The pointer to the shared cpuset is
- * automatically copied in fork.c by dup_task_struct().
- * This cpuset_fork() routine need only increment the usage
- * counter in that cpuset.
+ * Description: A task inherits its parent's cpuset at fork().
+ *
+ * A pointer to the shared cpuset was automatically copied in fork.c
+ * by dup_task_struct().  However, we ignore that copy, since it was
+ * not made under the protection of task_lock(), so might no longer be
+ * a valid cpuset pointer.  attach_task() might have already changed
+ * current->cpuset, allowing the previously referenced cpuset to
+ * be removed and freed.  Instead, we task_lock(current) and copy
+ * its present value of current->cpuset for our freshly forked child.
+ *
+ * At the point that cpuset_fork() is called, 'current' is the parent
+ * task, and the passed argument 'child' points to the child task.
  **/
 
-void cpuset_fork(struct task_struct *tsk)
+void cpuset_fork(struct task_struct *child)
 {
-        atomic_inc(&tsk->cpuset->count);
+        task_lock(current);
+        child->cpuset = current->cpuset;
+        atomic_inc(&child->cpuset->count);
+        task_unlock(current);
 }
 
 /**
@@ -1506,35 +1615,42 @@ void cpuset_fork(struct task_struct *tsk)
  *
  * Description: Detach cpuset from @tsk and release it.
  *
- * Note that cpusets marked notify_on_release force every task
- * in them to take the global cpuset_sem semaphore when exiting.
- * This could impact scaling on very large systems.  Be reluctant
- * to use notify_on_release cpusets where very high task exit
- * scaling is required on large systems.
- *
- * Don't even think about derefencing 'cs' after the cpuset use
- * count goes to zero, except inside a critical section guarded
- * by the cpuset_sem semaphore.  If you don't hold cpuset_sem,
- * then a zero cpuset use count is a license to any other task to
- * nuke the cpuset immediately.
+ * Note that cpusets marked notify_on_release force every task in
+ * them to take the global manage_sem semaphore when exiting.
+ * This could impact scaling on very large systems.  Be reluctant to
+ * use notify_on_release cpusets where very high task exit scaling
+ * is required on large systems.
+ *
+ * Don't even think about derefencing 'cs' after the cpuset use count
+ * goes to zero, except inside a critical section guarded by manage_sem
+ * or callback_sem.   Otherwise a zero cpuset use count is a license to
+ * any other task to nuke the cpuset immediately, via cpuset_rmdir().
+ *
+ * This routine has to take manage_sem, not callback_sem, because
+ * it is holding that semaphore while calling check_for_release(),
+ * which calls kmalloc(), so can't be called holding callback__sem().
+ *
+ * We don't need to task_lock() this reference to tsk->cpuset,
+ * because tsk is already marked PF_EXITING, so attach_task() won't
+ * mess with it.
  **/
 
 void cpuset_exit(struct task_struct *tsk)
 {
         struct cpuset *cs;
 
-        task_lock(tsk);
+        BUG_ON(!(tsk->flags & PF_EXITING));
+
         cs = tsk->cpuset;
         tsk->cpuset = NULL;
-        task_unlock(tsk);
 
         if (notify_on_release(cs)) {
                 char *pathbuf = NULL;
 
-                cpuset_down(&cpuset_sem);
+                down(&manage_sem);
                 if (atomic_dec_and_test(&cs->count))
                         check_for_release(cs, &pathbuf);
-                cpuset_up(&cpuset_sem);
+                up(&manage_sem);
                 cpuset_release_agent(pathbuf);
         } else {
                 atomic_dec(&cs->count);
@@ -1555,11 +1671,11 @@ cpumask_t cpuset_cpus_allowed(const struct task_struct *tsk)
 {
         cpumask_t mask;
 
-        cpuset_down(&cpuset_sem);
+        down(&callback_sem);
         task_lock((struct task_struct *)tsk);
         guarantee_online_cpus(tsk->cpuset, &mask);
         task_unlock((struct task_struct *)tsk);
-        cpuset_up(&cpuset_sem);
+        up(&callback_sem);
 
         return mask;
 }
@@ -1575,19 +1691,28 @@ void cpuset_init_current_mems_allowed(void)
  * If the current tasks cpusets mems_allowed changed behind our backs,
  * update current->mems_allowed and mems_generation to the new value.
  * Do not call this routine if in_interrupt().
+ *
+ * Call without callback_sem or task_lock() held.  May be called
+ * with or without manage_sem held.  Unless exiting, it will acquire
+ * task_lock().  Also might acquire callback_sem during call to
+ * refresh_mems().
  */
 
 void cpuset_update_current_mems_allowed(void)
 {
-        struct cpuset *cs = current->cpuset;
+        struct cpuset *cs;
+        int need_to_refresh = 0;
 
+        task_lock(current);
+        cs = current->cpuset;
         if (!cs)
-                return;         /* task is exiting */
-        if (current->cpuset_mems_generation != cs->mems_generation) {
-                cpuset_down(&cpuset_sem);
+                goto done;
+        if (current->cpuset_mems_generation != cs->mems_generation)
+                need_to_refresh = 1;
+done:
+        task_unlock(current);
+        if (need_to_refresh)
                 refresh_mems();
-                cpuset_up(&cpuset_sem);
-        }
 }
 
 /**
@@ -1621,7 +1746,7 @@ int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
 
 /*
  * nearest_exclusive_ancestor() - Returns the nearest mem_exclusive
- * ancestor to the specified cpuset.  Call while holding cpuset_sem.
+ * ancestor to the specified cpuset.  Call holding callback_sem.
  * If no ancestor is mem_exclusive (an unusual configuration), then
  * returns the root cpuset.
  */
@@ -1648,12 +1773,12 @@ static const struct cpuset *nearest_exclusive_ancestor(const struct cpuset *cs)
  * GFP_KERNEL allocations are not so marked, so can escape to the
  * nearest mem_exclusive ancestor cpuset.
  *
- * Scanning up parent cpusets requires cpuset_sem.  The __alloc_pages()
+ * Scanning up parent cpusets requires callback_sem.  The __alloc_pages()
  * routine only calls here with __GFP_HARDWALL bit _not_ set if
  * it's a GFP_KERNEL allocation, and all nodes in the current tasks
  * mems_allowed came up empty on the first pass over the zonelist.
  * So only GFP_KERNEL allocations, if all nodes in the cpuset are
- * short of memory, might require taking the cpuset_sem semaphore.
+ * short of memory, might require taking the callback_sem semaphore.
  *
  * The first loop over the zonelist in mm/page_alloc.c:__alloc_pages()
  * calls here with __GFP_HARDWALL always set in gfp_mask, enforcing
@@ -1685,14 +1810,16 @@ int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask)
                 return 0;
 
         /* Not hardwall and node outside mems_allowed: scan up cpusets */
-        cpuset_down(&cpuset_sem);
-        cs = current->cpuset;
-        if (!cs)
-                goto done;              /* current task exiting */
-        cs = nearest_exclusive_ancestor(cs);
+        down(&callback_sem);
+
+        if (current->flags & PF_EXITING) /* Let dying task have memory */
+                return 1;
+        task_lock(current);
+        cs = nearest_exclusive_ancestor(current->cpuset);
+        task_unlock(current);
+
         allowed = node_isset(node, cs->mems_allowed);
-done:
-        cpuset_up(&cpuset_sem);
+        up(&callback_sem);
         return allowed;
 }
 
@@ -1705,7 +1832,7 @@ done:
  * determine if task @p's memory usage might impact the memory
  * available to the current task.
  *
- * Acquires cpuset_sem - not suitable for calling from a fast path.
+ * Acquires callback_sem - not suitable for calling from a fast path.
  **/
 
 int cpuset_excl_nodes_overlap(const struct task_struct *p)
@@ -1713,18 +1840,27 @@ int cpuset_excl_nodes_overlap(const struct task_struct *p)
         const struct cpuset *cs1, *cs2; /* my and p's cpuset ancestors */
         int overlap = 0;                /* do cpusets overlap? */
 
-        cpuset_down(&cpuset_sem);
-        cs1 = current->cpuset;
-        if (!cs1)
-                goto done;              /* current task exiting */
-        cs2 = p->cpuset;
-        if (!cs2)
-                goto done;              /* task p is exiting */
-        cs1 = nearest_exclusive_ancestor(cs1);
-        cs2 = nearest_exclusive_ancestor(cs2);
+        down(&callback_sem);
+
+        task_lock(current);
+        if (current->flags & PF_EXITING) {
+                task_unlock(current);
+                goto done;
+        }
+        cs1 = nearest_exclusive_ancestor(current->cpuset);
+        task_unlock(current);
+
+        task_lock((struct task_struct *)p);
+        if (p->flags & PF_EXITING) {
+                task_unlock((struct task_struct *)p);
+                goto done;
+        }
+        cs2 = nearest_exclusive_ancestor(p->cpuset);
+        task_unlock((struct task_struct *)p);
+
         overlap = nodes_intersects(cs1->mems_allowed, cs2->mems_allowed);
 done:
-        cpuset_up(&cpuset_sem);
+        up(&callback_sem);
 
         return overlap;
 }
@@ -1733,6 +1869,10 @@ done:
  * proc_cpuset_show()
  *  - Print tasks cpuset path into seq_file.
  *  - Used for /proc/<pid>/cpuset.
+ *  - No need to task_lock(tsk) on this tsk->cpuset reference, as it
+ *    doesn't really matter if tsk->cpuset changes after we read it,
+ *    and we take manage_sem, keeping attach_task() from changing it
+ *    anyway.
  */
 
 static int proc_cpuset_show(struct seq_file *m, void *v)
@@ -1747,10 +1887,8 @@ static int proc_cpuset_show(struct seq_file *m, void *v)
                 return -ENOMEM;
 
         tsk = m->private;
-        cpuset_down(&cpuset_sem);
-        task_lock(tsk);
+        down(&manage_sem);
         cs = tsk->cpuset;
-        task_unlock(tsk);
         if (!cs) {
                 retval = -EINVAL;
                 goto out;
@@ -1762,7 +1900,7 @@ static int proc_cpuset_show(struct seq_file *m, void *v)
         seq_puts(m, buf);
         seq_putc(m, '\n');
 out:
-        cpuset_up(&cpuset_sem);
+        up(&manage_sem);
         kfree(buf);
         return retval;
 }
diff --git a/kernel/exit.c b/kernel/exit.c
index 79f52b85d6ed..537394b25e8d 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -547,7 +547,7 @@ static inline void reparent_thread(task_t *p, task_t *father, int traced)
 
         if (p->pdeath_signal)
                 /* We already hold the tasklist_lock here.  */
-                group_send_sig_info(p->pdeath_signal, (void *) 0, p);
+                group_send_sig_info(p->pdeath_signal, SEND_SIG_NOINFO, p);
 
         /* Move the child from its dying parent to the new one.  */
         if (unlikely(traced)) {
@@ -591,8 +591,8 @@ static inline void reparent_thread(task_t *p, task_t *father, int traced)
                 int pgrp = process_group(p);
 
                 if (will_become_orphaned_pgrp(pgrp, NULL) && has_stopped_jobs(pgrp)) {
-                        __kill_pg_info(SIGHUP, (void *)1, pgrp);
-                        __kill_pg_info(SIGCONT, (void *)1, pgrp);
+                        __kill_pg_info(SIGHUP, SEND_SIG_PRIV, pgrp);
+                        __kill_pg_info(SIGCONT, SEND_SIG_PRIV, pgrp);
                 }
         }
 }
@@ -727,8 +727,8 @@ static void exit_notify(struct task_struct *tsk)
             (t->signal->session == tsk->signal->session) &&
             will_become_orphaned_pgrp(process_group(tsk), tsk) &&
             has_stopped_jobs(process_group(tsk))) {
-                __kill_pg_info(SIGHUP, (void *)1, process_group(tsk));
-                __kill_pg_info(SIGCONT, (void *)1, process_group(tsk));
+                __kill_pg_info(SIGHUP, SEND_SIG_PRIV, process_group(tsk));
+                __kill_pg_info(SIGCONT, SEND_SIG_PRIV, process_group(tsk));
         }
 
         /* Let father know we died 
@@ -783,10 +783,6 @@ static void exit_notify(struct task_struct *tsk)
         /* If the process is dead, release it - nobody will wait for it */
         if (state == EXIT_DEAD)
                 release_task(tsk);
-
-        /* PF_DEAD causes final put_task_struct after we schedule. */
-        preempt_disable();
-        tsk->flags |= PF_DEAD;
 }
 
 fastcall NORET_TYPE void do_exit(long code)
@@ -873,7 +869,11 @@ fastcall NORET_TYPE void do_exit(long code)
         tsk->mempolicy = NULL;
 #endif
 
-        BUG_ON(!(current->flags & PF_DEAD));
+        /* PF_DEAD causes final put_task_struct after we schedule. */
+        preempt_disable();
+        BUG_ON(tsk->flags & PF_DEAD);
+        tsk->flags |= PF_DEAD;
+
         schedule();
         BUG();
         /* Avoid "noreturn function does return".  */
@@ -1383,6 +1383,15 @@ repeat:
 
                         switch (p->state) {
                         case TASK_TRACED:
+                                /*
+                                 * When we hit the race with PTRACE_ATTACH,
+                                 * we will not report this child.  But the
+                                 * race means it has not yet been moved to
+                                 * our ptrace_children list, so we need to
+                                 * set the flag here to avoid a spurious ECHILD
+                                 * when the race happens with the only child.
+                                 */
+                                flag = 1;
                                 if (!my_ptrace_child(p))
                                         continue;
                                 /*FALLTHROUGH*/
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 3ff7b925c387..51df337b37db 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -117,14 +117,16 @@ fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs)
                 /*
                  * No locking required for CPU-local interrupts:
                  */
-                desc->handler->ack(irq);
+                if (desc->handler->ack)
+                        desc->handler->ack(irq);
                 action_ret = handle_IRQ_event(irq, regs, desc->action);
                 desc->handler->end(irq);
                 return 1;
         }
 
         spin_lock(&desc->lock);
-        desc->handler->ack(irq);
+        if (desc->handler->ack)
+                desc->handler->ack(irq);
         /*
          * REPLAY is when Linux resends an IRQ that was dropped earlier
          * WAITING is used by probe to mark irqs that are being tested
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 13bcec151b57..39277dd6bf90 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -18,6 +18,7 @@
 #include <linux/fs.h>
 #include <linux/err.h>
 #include <linux/proc_fs.h>
+#include <linux/sched.h>        /* for cond_resched */
 #include <linux/mm.h>
 
 #include <asm/sections.h>
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 44166e3bb8af..51a892063aaa 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -131,14 +131,14 @@ struct subprocess_info {
 static int ____call_usermodehelper(void *data)
 {
         struct subprocess_info *sub_info = data;
-        struct key *old_session;
+        struct key *new_session, *old_session;
         int retval;
 
         /* Unblock all signals and set the session keyring. */
-        key_get(sub_info->ring);
+        new_session = key_get(sub_info->ring);
         flush_signals(current);
         spin_lock_irq(&current->sighand->siglock);
-        old_session = __install_session_keyring(current, sub_info->ring);
+        old_session = __install_session_keyring(current, new_session);
         flush_signal_handlers(current, 1);
         sigemptyset(&current->blocked);
         recalc_sigpending();
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index f3ea492ab44d..ce4915dd683a 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -35,6 +35,7 @@
 #include <linux/spinlock.h>
 #include <linux/hash.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/moduleloader.h>
 #include <asm-generic/sections.h>
diff --git a/kernel/kthread.c b/kernel/kthread.c
index f50f174e92da..e75950a1092c 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -165,6 +165,12 @@ EXPORT_SYMBOL(kthread_bind);
 
 int kthread_stop(struct task_struct *k)
 {
+        return kthread_stop_sem(k, NULL);
+}
+EXPORT_SYMBOL(kthread_stop);
+
+int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
+{
         int ret;
 
         down(&kthread_stop_lock);
@@ -178,7 +184,10 @@ int kthread_stop(struct task_struct *k)
 
         /* Now set kthread_should_stop() to true, and wake it up. */
         kthread_stop_info.k = k;
-        wake_up_process(k);
+        if (s)
+                up(s);
+        else
+                wake_up_process(k);
         put_task_struct(k);
 
         /* Once it dies, reset stop ptr, gather result and we're done. */
@@ -189,7 +198,7 @@ int kthread_stop(struct task_struct *k)
 
         return ret;
 }
-EXPORT_SYMBOL(kthread_stop);
+EXPORT_SYMBOL(kthread_stop_sem);
 
 static __init int helper_init(void)
 {
diff --git a/kernel/params.c b/kernel/params.c
index 1a8614bac5d5..47ba69547945 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 
 #if 0
 #define DEBUGP printk
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index bf374fceb39c..91a894264941 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1225,7 +1225,7 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
                 /*
                  * The task was cleaned up already, no future firings.
                  */
-                return;
+                goto out;
 
         /*
          * Fetch the current sample and update the timer's expiry time.
@@ -1235,7 +1235,7 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
                 bump_cpu_timer(timer, now);
                 if (unlikely(p->exit_state)) {
                         clear_dead_task(timer, now);
-                        return;
+                        goto out;
                 }
                 read_lock(&tasklist_lock); /* arm_timer needs it.  */
         } else {
@@ -1248,8 +1248,7 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
                         put_task_struct(p);
                         timer->it.cpu.task = p = NULL;
                         timer->it.cpu.expires.sched = 0;
-                        read_unlock(&tasklist_lock);
-                        return;
+                        goto out_unlock;
                 } else if (unlikely(p->exit_state) && thread_group_empty(p)) {
                         /*
                          * We've noticed that the thread is dead, but
@@ -1257,8 +1256,7 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
                          * drop our task ref.
                          */
                         clear_dead_task(timer, now);
-                        read_unlock(&tasklist_lock);
-                        return;
+                        goto out_unlock;
                 }
                 cpu_clock_sample_group(timer->it_clock, p, &now);
                 bump_cpu_timer(timer, now);
@@ -1270,7 +1268,13 @@ void posix_cpu_timer_schedule(struct k_itimer *timer)
          */
         arm_timer(timer, now);
 
+out_unlock:
         read_unlock(&tasklist_lock);
+
+out:
+        timer->it_overrun_last = timer->it_overrun;
+        timer->it_overrun = -1;
+        ++timer->it_requeue_pending;
 }
 
 /*
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index dda3cda73c77..ea55c7a1cd75 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -1295,13 +1295,6 @@ sys_clock_getres(clockid_t which_clock, struct timespec __user *tp)
         return error;
 }
 
-static void nanosleep_wake_up(unsigned long __data)
-{
-        struct task_struct *p = (struct task_struct *) __data;
-
-        wake_up_process(p);
-}
-
 /*
  * The standard says that an absolute nanosleep call MUST wake up at
  * the requested time in spite of clock settings.  Here is what we do:
@@ -1442,7 +1435,6 @@ static int common_nsleep(clockid_t which_clock,
                          int flags, struct timespec *tsave)
 {
         struct timespec t, dum;
-        struct timer_list new_timer;
         DECLARE_WAITQUEUE(abs_wqueue, current);
         u64 rq_time = (u64)0;
         s64 left;
@@ -1451,10 +1443,6 @@ static int common_nsleep(clockid_t which_clock,
             &current_thread_info()->restart_block;
 
         abs_wqueue.flags = 0;
-        init_timer(&new_timer);
-        new_timer.expires = 0;
-        new_timer.data = (unsigned long) current;
-        new_timer.function = nanosleep_wake_up;
         abs = flags & TIMER_ABSTIME;
 
         if (restart_block->fn == clock_nanosleep_restart) {
@@ -1490,13 +1478,8 @@ static int common_nsleep(clockid_t which_clock,
                 if (left < (s64)0)
                         break;
 
-                new_timer.expires = jiffies + left;
-                __set_current_state(TASK_INTERRUPTIBLE);
-                add_timer(&new_timer);
-
-                schedule();
+                schedule_timeout_interruptible(left);
 
-                del_timer_sync(&new_timer);
                 left = rq_time - get_jiffies_64();
         } while (left > (s64)0 && !test_thread_flag(TIF_SIGPENDING));
 
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 2f438d0eaa13..c71eb4579c07 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -4,7 +4,7 @@ EXTRA_CFLAGS	+=	-DDEBUG
 endif
 
 obj-y                           := main.o process.o console.o pm.o
-obj-$(CONFIG_SOFTWARE_SUSPEND)  += swsusp.o disk.o
+obj-$(CONFIG_SOFTWARE_SUSPEND)  += swsusp.o disk.o snapshot.o
 
 obj-$(CONFIG_SUSPEND_SMP)       += smp.o
 
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 761956e813f5..027322a564f4 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -30,7 +30,6 @@ extern int swsusp_check(void);
 extern int swsusp_read(void);
 extern void swsusp_close(void);
 extern int swsusp_resume(void);
-extern int swsusp_free(void);
 
 
 static int noresume = 0;
@@ -93,10 +92,7 @@ static void free_some_memory(void)
         printk("Freeing memory...  ");
         while ((tmp = shrink_all_memory(10000))) {
                 pages += tmp;
-                printk("\b%c", p[i]);
-                i++;
-                if (i > 3)
-                        i = 0;
+                printk("\b%c", p[i++ % 4]);
         }
         printk("\bdone (%li pages freed)\n", pages);
 }
@@ -178,13 +174,12 @@ int pm_suspend_disk(void)
                 goto Done;
 
         if (in_suspend) {
+                device_resume();
                 pr_debug("PM: writing image.\n");
                 error = swsusp_write();
                 if (!error)
                         power_down(pm_disk_mode);
                 else {
-                /* swsusp_write can not fail in device_resume,
-                   no need to do second device_resume */
                         swsusp_free();
                         unprepare_processes();
                         return error;
@@ -252,14 +247,17 @@ static int software_resume(void)
 
         pr_debug("PM: Reading swsusp image.\n");
 
-        if ((error = swsusp_read()))
-                goto Cleanup;
+        if ((error = swsusp_read())) {
+                swsusp_free();
+                goto Thaw;
+        }
 
         pr_debug("PM: Preparing devices for restore.\n");
 
         if ((error = device_suspend(PMSG_FREEZE))) {
                 printk("Some devices failed to suspend\n");
-                goto Free;
+                swsusp_free();
+                goto Thaw;
         }
 
         mb();
@@ -268,9 +266,7 @@ static int software_resume(void)
         swsusp_resume();
         pr_debug("PM: Restore failed, recovering.n");
         device_resume();
- Free:
-        swsusp_free();
- Cleanup:
+ Thaw:
         unprepare_processes();
  Done:
         /* For success case, the suspend path will release the lock */
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 22bdc93cc038..18d7d693fbba 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -167,6 +167,8 @@ static int enter_state(suspend_state_t state)
 {
         int error;
 
+        if (pm_ops->valid && !pm_ops->valid(state))
+                return -ENODEV;
         if (down_trylock(&pm_sem))
                 return -EBUSY;
 
@@ -236,7 +238,8 @@ static ssize_t state_show(struct subsystem * subsys, char * buf)
         char * s = buf;
 
         for (i = 0; i < PM_SUSPEND_MAX; i++) {
-                if (pm_states[i])
+                if (pm_states[i] && pm_ops && (!pm_ops->valid
+                        ||(pm_ops->valid && pm_ops->valid(i))))
                         s += sprintf(s,"%s ",pm_states[i]);
         }
         s += sprintf(s,"\n");
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 6748de23e83c..d4fd96a135ab 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -53,3 +53,20 @@ extern void thaw_processes(void);
 
 extern int pm_prepare_console(void);
 extern void pm_restore_console(void);
+
+
+/* References to section boundaries */
+extern const void __nosave_begin, __nosave_end;
+
+extern unsigned int nr_copy_pages;
+extern suspend_pagedir_t *pagedir_nosave;
+extern suspend_pagedir_t *pagedir_save;
+
+extern asmlinkage int swsusp_arch_suspend(void);
+extern asmlinkage int swsusp_arch_resume(void);
+
+extern int restore_highmem(void);
+extern struct pbe * alloc_pagedir(unsigned nr_pages);
+extern void create_pbe_list(struct pbe *pblist, unsigned nr_pages);
+extern void swsusp_free(void);
+extern int enough_swap(unsigned nr_pages);
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
new file mode 100644
index 000000000000..42a628704398
--- /dev/null
+++ b/kernel/power/snapshot.c
@@ -0,0 +1,435 @@
+/*
+ * linux/kernel/power/snapshot.c
+ *
+ * This file provide system snapshot/restore functionality.
+ *
+ * Copyright (C) 1998-2005 Pavel Machek <pavel@suse.cz>
+ *
+ * This file is released under the GPLv2, and is based on swsusp.c.
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/suspend.h>
+#include <linux/smp_lock.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/pm.h>
+#include <linux/device.h>
+#include <linux/bootmem.h>
+#include <linux/syscalls.h>
+#include <linux/console.h>
+#include <linux/highmem.h>
+
+#include <asm/uaccess.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <asm/io.h>
+
+#include "power.h"
+
+#ifdef CONFIG_HIGHMEM
+struct highmem_page {
+        char *data;
+        struct page *page;
+        struct highmem_page *next;
+};
+
+static struct highmem_page *highmem_copy;
+
+static int save_highmem_zone(struct zone *zone)
+{
+        unsigned long zone_pfn;
+        mark_free_pages(zone);
+        for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) {
+                struct page *page;
+                struct highmem_page *save;
+                void *kaddr;
+                unsigned long pfn = zone_pfn + zone->zone_start_pfn;
+
+                if (!(pfn%1000))
+                        printk(".");
+                if (!pfn_valid(pfn))
+                        continue;
+                page = pfn_to_page(pfn);
+                /*
+                 * This condition results from rvmalloc() sans vmalloc_32()
+                 * and architectural memory reservations. This should be
+                 * corrected eventually when the cases giving rise to this
+                 * are better understood.
+                 */
+                if (PageReserved(page)) {
+                        printk("highmem reserved page?!\n");
+                        continue;
+                }
+                BUG_ON(PageNosave(page));
+                if (PageNosaveFree(page))
+                        continue;
+                save = kmalloc(sizeof(struct highmem_page), GFP_ATOMIC);
+                if (!save)
+                        return -ENOMEM;
+                save->next = highmem_copy;
+                save->page = page;
+                save->data = (void *) get_zeroed_page(GFP_ATOMIC);
+                if (!save->data) {
+                        kfree(save);
+                        return -ENOMEM;
+                }
+                kaddr = kmap_atomic(page, KM_USER0);
+                memcpy(save->data, kaddr, PAGE_SIZE);
+                kunmap_atomic(kaddr, KM_USER0);
+                highmem_copy = save;
+        }
+        return 0;
+}
+
+
+static int save_highmem(void)
+{
+        struct zone *zone;
+        int res = 0;
+
+        pr_debug("swsusp: Saving Highmem\n");
+        for_each_zone (zone) {
+                if (is_highmem(zone))
+                        res = save_highmem_zone(zone);
+                if (res)
+                        return res;
+        }
+        return 0;
+}
+
+int restore_highmem(void)
+{
+        printk("swsusp: Restoring Highmem\n");
+        while (highmem_copy) {
+                struct highmem_page *save = highmem_copy;
+                void *kaddr;
+                highmem_copy = save->next;
+
+                kaddr = kmap_atomic(save->page, KM_USER0);
+                memcpy(kaddr, save->data, PAGE_SIZE);
+                kunmap_atomic(kaddr, KM_USER0);
+                free_page((long) save->data);
+                kfree(save);
+        }
+        return 0;
+}
+#else
+static int save_highmem(void) { return 0; }
+int restore_highmem(void) { return 0; }
+#endif /* CONFIG_HIGHMEM */
+
+
+static int pfn_is_nosave(unsigned long pfn)
+{
+        unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
+        unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
+        return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
+}
+
+/**
+ *      saveable - Determine whether a page should be cloned or not.
+ *      @pfn:   The page
+ *
+ *      We save a page if it's Reserved, and not in the range of pages
+ *      statically defined as 'unsaveable', or if it isn't reserved, and
+ *      isn't part of a free chunk of pages.
+ */
+
+static int saveable(struct zone *zone, unsigned long *zone_pfn)
+{
+        unsigned long pfn = *zone_pfn + zone->zone_start_pfn;
+        struct page *page;
+
+        if (!pfn_valid(pfn))
+                return 0;
+
+        page = pfn_to_page(pfn);
+        BUG_ON(PageReserved(page) && PageNosave(page));
+        if (PageNosave(page))
+                return 0;
+        if (PageReserved(page) && pfn_is_nosave(pfn)) {
+                pr_debug("[nosave pfn 0x%lx]", pfn);
+                return 0;
+        }
+        if (PageNosaveFree(page))
+                return 0;
+
+        return 1;
+}
+
+static unsigned count_data_pages(void)
+{
+        struct zone *zone;
+        unsigned long zone_pfn;
+        unsigned n;
+
+        n = 0;
+        for_each_zone (zone) {
+                if (is_highmem(zone))
+                        continue;
+                mark_free_pages(zone);
+                for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn)
+                        n += saveable(zone, &zone_pfn);
+        }
+        return n;
+}
+
+static void copy_data_pages(struct pbe *pblist)
+{
+        struct zone *zone;
+        unsigned long zone_pfn;
+        struct pbe *pbe, *p;
+
+        pbe = pblist;
+        for_each_zone (zone) {
+                if (is_highmem(zone))
+                        continue;
+                mark_free_pages(zone);
+                /* This is necessary for swsusp_free() */
+                for_each_pb_page (p, pblist)
+                        SetPageNosaveFree(virt_to_page(p));
+                for_each_pbe (p, pblist)
+                        SetPageNosaveFree(virt_to_page(p->address));
+                for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) {
+                        if (saveable(zone, &zone_pfn)) {
+                                struct page *page;
+                                page = pfn_to_page(zone_pfn + zone->zone_start_pfn);
+                                BUG_ON(!pbe);
+                                pbe->orig_address = (unsigned long)page_address(page);
+                                /* copy_page is not usable for copying task structs. */
+                                memcpy((void *)pbe->address, (void *)pbe->orig_address, PAGE_SIZE);
+                                pbe = pbe->next;
+                        }
+                }
+        }
+        BUG_ON(pbe);
+}
+
+
+/**
+ *      free_pagedir - free pages allocated with alloc_pagedir()
+ */
+
+static void free_pagedir(struct pbe *pblist)
+{
+        struct pbe *pbe;
+
+        while (pblist) {
+                pbe = (pblist + PB_PAGE_SKIP)->next;
+                ClearPageNosave(virt_to_page(pblist));
+                ClearPageNosaveFree(virt_to_page(pblist));
+                free_page((unsigned long)pblist);
+                pblist = pbe;
+        }
+}
+
+/**
+ *      fill_pb_page - Create a list of PBEs on a given memory page
+ */
+
+static inline void fill_pb_page(struct pbe *pbpage)
+{
+        struct pbe *p;
+
+        p = pbpage;
+        pbpage += PB_PAGE_SKIP;
+        do
+                p->next = p + 1;
+        while (++p < pbpage);
+}
+
+/**
+ *      create_pbe_list - Create a list of PBEs on top of a given chain
+ *      of memory pages allocated with alloc_pagedir()
+ */
+
+void create_pbe_list(struct pbe *pblist, unsigned nr_pages)
+{
+        struct pbe *pbpage, *p;
+        unsigned num = PBES_PER_PAGE;
+
+        for_each_pb_page (pbpage, pblist) {
+                if (num >= nr_pages)
+                        break;
+
+                fill_pb_page(pbpage);
+                num += PBES_PER_PAGE;
+        }
+        if (pbpage) {
+                for (num -= PBES_PER_PAGE - 1, p = pbpage; num < nr_pages; p++, num++)
+                        p->next = p + 1;
+                p->next = NULL;
+        }
+        pr_debug("create_pbe_list(): initialized %d PBEs\n", num);
+}
+
+static void *alloc_image_page(void)
+{
+        void *res = (void *)get_zeroed_page(GFP_ATOMIC | __GFP_COLD);
+        if (res) {
+                SetPageNosave(virt_to_page(res));
+                SetPageNosaveFree(virt_to_page(res));
+        }
+        return res;
+}
+
+/**
+ *      alloc_pagedir - Allocate the page directory.
+ *
+ *      First, determine exactly how many pages we need and
+ *      allocate them.
+ *
+ *      We arrange the pages in a chain: each page is an array of PBES_PER_PAGE
+ *      struct pbe elements (pbes) and the last element in the page points
+ *      to the next page.
+ *
+ *      On each page we set up a list of struct_pbe elements.
+ */
+
+struct pbe *alloc_pagedir(unsigned nr_pages)
+{
+        unsigned num;
+        struct pbe *pblist, *pbe;
+
+        if (!nr_pages)
+                return NULL;
+
+        pr_debug("alloc_pagedir(): nr_pages = %d\n", nr_pages);
+        pblist = alloc_image_page();
+        /* FIXME: rewrite this ugly loop */
+        for (pbe = pblist, num = PBES_PER_PAGE; pbe && num < nr_pages;
+                        pbe = pbe->next, num += PBES_PER_PAGE) {
+                pbe += PB_PAGE_SKIP;
+                pbe->next = alloc_image_page();
+        }
+        if (!pbe) { /* get_zeroed_page() failed */
+                free_pagedir(pblist);
+                pblist = NULL;
+        }
+        return pblist;
+}
+
+/**
+ * Free pages we allocated for suspend. Suspend pages are alocated
+ * before atomic copy, so we need to free them after resume.
+ */
+
+void swsusp_free(void)
+{
+        struct zone *zone;
+        unsigned long zone_pfn;
+
+        for_each_zone(zone) {
+                for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn)
+                        if (pfn_valid(zone_pfn + zone->zone_start_pfn)) {
+                                struct page * page;
+                                page = pfn_to_page(zone_pfn + zone->zone_start_pfn);
+                                if (PageNosave(page) && PageNosaveFree(page)) {
+                                        ClearPageNosave(page);
+                                        ClearPageNosaveFree(page);
+                                        free_page((long) page_address(page));
+                                }
+                        }
+        }
+}
+
+
+/**
+ *      enough_free_mem - Make sure we enough free memory to snapshot.
+ *
+ *      Returns TRUE or FALSE after checking the number of available
+ *      free pages.
+ */
+
+static int enough_free_mem(unsigned nr_pages)
+{
+        pr_debug("swsusp: available memory: %u pages\n", nr_free_pages());
+        return nr_free_pages() > (nr_pages + PAGES_FOR_IO +
+                (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE);
+}
+
+
+static struct pbe *swsusp_alloc(unsigned nr_pages)
+{
+        struct pbe *pblist, *p;
+
+        if (!(pblist = alloc_pagedir(nr_pages))) {
+                printk(KERN_ERR "suspend: Allocating pagedir failed.\n");
+                return NULL;
+        }
+        create_pbe_list(pblist, nr_pages);
+
+        for_each_pbe (p, pblist) {
+                p->address = (unsigned long)alloc_image_page();
+                if (!p->address) {
+                        printk(KERN_ERR "suspend: Allocating image pages failed.\n");
+                        swsusp_free();
+                        return NULL;
+                }
+        }
+
+        return pblist;
+}
+
+asmlinkage int swsusp_save(void)
+{
+        unsigned nr_pages;
+
+        pr_debug("swsusp: critical section: \n");
+        if (save_highmem()) {
+                printk(KERN_CRIT "swsusp: Not enough free pages for highmem\n");
+                restore_highmem();
+                return -ENOMEM;
+        }
+
+        drain_local_pages();
+        nr_pages = count_data_pages();
+        printk("swsusp: Need to copy %u pages\n", nr_pages);
+
+        pr_debug("swsusp: pages needed: %u + %lu + %u, free: %u\n",
+                 nr_pages,
+                 (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE,
+                 PAGES_FOR_IO, nr_free_pages());
+
+        /* This is needed because of the fixed size of swsusp_info */
+        if (MAX_PBES < (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE)
+                return -ENOSPC;
+
+        if (!enough_free_mem(nr_pages)) {
+                printk(KERN_ERR "swsusp: Not enough free memory\n");
+                return -ENOMEM;
+        }
+
+        if (!enough_swap(nr_pages)) {
+                printk(KERN_ERR "swsusp: Not enough free swap\n");
+                return -ENOSPC;
+        }
+
+        pagedir_nosave = swsusp_alloc(nr_pages);
+        if (!pagedir_nosave)
+                return -ENOMEM;
+
+        /* During allocating of suspend pagedir, new cold pages may appear.
+         * Kill them.
+         */
+        drain_local_pages();
+        copy_data_pages(pagedir_nosave);
+
+        /*
+         * End of critical section. From now on, we can write to memory,
+         * but we should not touch disk. This specially means we must _not_
+         * touch swap space! Except we must write out our image of course.
+         */
+
+        nr_copy_pages = nr_pages;
+
+        printk("swsusp: critical section/: done (%d pages copied)\n", nr_pages);
+        return 0;
+}
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 016504ccfccf..12db1d2ad61f 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -1,11 +1,10 @@
 /*
  * linux/kernel/power/swsusp.c
  *
- * This file is to realize architecture-independent
- * machine suspend feature using pretty near only high-level routines
+ * This file provides code to write suspend image to swap and read it back.
  *
  * Copyright (C) 1998-2001 Gabor Kuti <seasons@fornax.hu>
- * Copyright (C) 1998,2001-2004 Pavel Machek <pavel@suse.cz>
+ * Copyright (C) 1998,2001-2005 Pavel Machek <pavel@suse.cz>
  *
  * This file is released under the GPLv2.
  *
@@ -47,11 +46,7 @@
 #include <linux/utsname.h>
 #include <linux/version.h>
 #include <linux/delay.h>
-#include <linux/reboot.h>
 #include <linux/bitops.h>
-#include <linux/vt_kern.h>
-#include <linux/kbd_kern.h>
-#include <linux/keyboard.h>
 #include <linux/spinlock.h>
 #include <linux/genhd.h>
 #include <linux/kernel.h>
@@ -63,10 +58,8 @@
 #include <linux/swapops.h>
 #include <linux/bootmem.h>
 #include <linux/syscalls.h>
-#include <linux/console.h>
 #include <linux/highmem.h>
 #include <linux/bio.h>
-#include <linux/mount.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -84,16 +77,10 @@
 #define MAXKEY 32
 #define MAXIV  32
 
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
-
-/* Variables to be preserved over suspend */
-static int nr_copy_pages_check;
-
 extern char resume_file[];
 
 /* Local variables that should not be affected by save */
-static unsigned int nr_copy_pages __nosavedata = 0;
+unsigned int nr_copy_pages __nosavedata = 0;
 
 /* Suspend pagedir is allocated before final copy, therefore it
    must be freed after resume
@@ -109,7 +96,7 @@ static unsigned int nr_copy_pages __nosavedata = 0;
    MMU hardware.
  */
 suspend_pagedir_t *pagedir_nosave __nosavedata = NULL;
-static suspend_pagedir_t *pagedir_save;
+suspend_pagedir_t *pagedir_save;
 
 #define SWSUSP_SIG      "S1SUSPEND"
 
@@ -124,12 +111,6 @@ static struct swsusp_header {
 static struct swsusp_info swsusp_info;
 
 /*
- * XXX: We try to keep some more pages free so that I/O operations succeed
- * without paging. Might this be more?
- */
-#define PAGES_FOR_IO    512
-
-/*
  * Saving part...
  */
 
@@ -552,353 +533,6 @@ static int write_suspend_image(void)
         goto Done;
 }
 
-
-#ifdef CONFIG_HIGHMEM
-struct highmem_page {
-        char *data;
-        struct page *page;
-        struct highmem_page *next;
-};
-
-static struct highmem_page *highmem_copy;
-
-static int save_highmem_zone(struct zone *zone)
-{
-        unsigned long zone_pfn;
-        mark_free_pages(zone);
-        for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) {
-                struct page *page;
-                struct highmem_page *save;
-                void *kaddr;
-                unsigned long pfn = zone_pfn + zone->zone_start_pfn;
-
-                if (!(pfn%1000))
-                        printk(".");
-                if (!pfn_valid(pfn))
-                        continue;
-                page = pfn_to_page(pfn);
-                /*
-                 * PageReserved results from rvmalloc() sans vmalloc_32()
-                 * and architectural memory reservations.
-                 *
-                 * rvmalloc should not cause this, because all implementations
-                 * appear to always be using vmalloc_32 on architectures with
-                 * highmem. This is a good thing, because we would like to save
-                 * rvmalloc pages.
-                 *
-                 * It appears to be triggered by pages which do not point to
-                 * valid memory (see arch/i386/mm/init.c:one_highpage_init(),
-                 * which sets PageReserved if the page does not point to valid
-                 * RAM.
-                 *
-                 * XXX: must remove usage of PageReserved!
-                 */
-                if (PageReserved(page))
-                        continue;
-                BUG_ON(PageNosave(page));
-                if (PageNosaveFree(page))
-                        continue;
-                save = kmalloc(sizeof(struct highmem_page), GFP_ATOMIC);
-                if (!save)
-                        return -ENOMEM;
-                save->next = highmem_copy;
-                save->page = page;
-                save->data = (void *) get_zeroed_page(GFP_ATOMIC);
-                if (!save->data) {
-                        kfree(save);
-                        return -ENOMEM;
-                }
-                kaddr = kmap_atomic(page, KM_USER0);
-                memcpy(save->data, kaddr, PAGE_SIZE);
-                kunmap_atomic(kaddr, KM_USER0);
-                highmem_copy = save;
-        }
-        return 0;
-}
-#endif /* CONFIG_HIGHMEM */
-
-
-static int save_highmem(void)
-{
-#ifdef CONFIG_HIGHMEM
-        struct zone *zone;
-        int res = 0;
-
-        pr_debug("swsusp: Saving Highmem\n");
-        for_each_zone (zone) {
-                if (is_highmem(zone))
-                        res = save_highmem_zone(zone);
-                if (res)
-                        return res;
-        }
-#endif
-        return 0;
-}
-
-static int restore_highmem(void)
-{
-#ifdef CONFIG_HIGHMEM
-        printk("swsusp: Restoring Highmem\n");
-        while (highmem_copy) {
-                struct highmem_page *save = highmem_copy;
-                void *kaddr;
-                highmem_copy = save->next;
-
-                kaddr = kmap_atomic(save->page, KM_USER0);
-                memcpy(kaddr, save->data, PAGE_SIZE);
-                kunmap_atomic(kaddr, KM_USER0);
-                free_page((long) save->data);
-                kfree(save);
-        }
-#endif
-        return 0;
-}
-
-
-static int pfn_is_nosave(unsigned long pfn)
-{
-        unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
-        unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
-        return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
-}
-
-/**
- *      saveable - Determine whether a page should be cloned or not.
- *      @pfn:   The page
- *
- *      We save a page if it's Reserved, and not in the range of pages
- *      statically defined as 'unsaveable', or if it isn't reserved, and
- *      isn't part of a free chunk of pages.
- */
-
-static int saveable(struct zone * zone, unsigned long * zone_pfn)
-{
-        unsigned long pfn = *zone_pfn + zone->zone_start_pfn;
-        struct page * page;
-
-        if (!pfn_valid(pfn))
-                return 0;
-
-        page = pfn_to_page(pfn);
-        if (PageNosave(page))
-                return 0;
-        if (pfn_is_nosave(pfn)) {
-                pr_debug("[nosave pfn 0x%lx]", pfn);
-                return 0;
-        }
-        if (PageNosaveFree(page))
-                return 0;
-
-        return 1;
-}
-
-static void count_data_pages(void)
-{
-        struct zone *zone;
-        unsigned long zone_pfn;
-
-        nr_copy_pages = 0;
-
-        for_each_zone (zone) {
-                if (is_highmem(zone))
-                        continue;
-                mark_free_pages(zone);
-                for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn)
-                        nr_copy_pages += saveable(zone, &zone_pfn);
-        }
-}
-
-
-static void copy_data_pages(void)
-{
-        struct zone *zone;
-        unsigned long zone_pfn;
-        struct pbe * pbe = pagedir_nosave;
-
-        pr_debug("copy_data_pages(): pages to copy: %d\n", nr_copy_pages);
-        for_each_zone (zone) {
-                if (is_highmem(zone))
-                        continue;
-                mark_free_pages(zone);
-                for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) {
-                        if (saveable(zone, &zone_pfn)) {
-                                struct page * page;
-                                page = pfn_to_page(zone_pfn + zone->zone_start_pfn);
-                                BUG_ON(!pbe);
-                                pbe->orig_address = (long) page_address(page);
-                                /* copy_page is not usable for copying task structs. */
-                                memcpy((void *)pbe->address, (void *)pbe->orig_address, PAGE_SIZE);
-                                pbe = pbe->next;
-                        }
-                }
-        }
-        BUG_ON(pbe);
-}
-
-
-/**
- *      calc_nr - Determine the number of pages needed for a pbe list.
- */
-
-static int calc_nr(int nr_copy)
-{
-        return nr_copy + (nr_copy+PBES_PER_PAGE-2)/(PBES_PER_PAGE-1);
-}
-
-/**
- *      free_pagedir - free pages allocated with alloc_pagedir()
- */
-
-static inline void free_pagedir(struct pbe *pblist)
-{
-        struct pbe *pbe;
-
-        while (pblist) {
-                pbe = (pblist + PB_PAGE_SKIP)->next;
-                free_page((unsigned long)pblist);
-                pblist = pbe;
-        }
-}
-
-/**
- *      fill_pb_page - Create a list of PBEs on a given memory page
- */
-
-static inline void fill_pb_page(struct pbe *pbpage)
-{
-        struct pbe *p;
-
-        p = pbpage;
-        pbpage += PB_PAGE_SKIP;
-        do
-                p->next = p + 1;
-        while (++p < pbpage);
-}
-
-/**
- *      create_pbe_list - Create a list of PBEs on top of a given chain
- *      of memory pages allocated with alloc_pagedir()
- */
-
-static void create_pbe_list(struct pbe *pblist, unsigned nr_pages)
-{
-        struct pbe *pbpage, *p;
-        unsigned num = PBES_PER_PAGE;
-
-        for_each_pb_page (pbpage, pblist) {
-                if (num >= nr_pages)
-                        break;
-
-                fill_pb_page(pbpage);
-                num += PBES_PER_PAGE;
-        }
-        if (pbpage) {
-                for (num -= PBES_PER_PAGE - 1, p = pbpage; num < nr_pages; p++, num++)
-                        p->next = p + 1;
-                p->next = NULL;
-        }
-        pr_debug("create_pbe_list(): initialized %d PBEs\n", num);
-}
-
-/**
- *      alloc_pagedir - Allocate the page directory.
- *
- *      First, determine exactly how many pages we need and
- *      allocate them.
- *
- *      We arrange the pages in a chain: each page is an array of PBES_PER_PAGE
- *      struct pbe elements (pbes) and the last element in the page points
- *      to the next page.
- *
- *      On each page we set up a list of struct_pbe elements.
- */
-
-static struct pbe * alloc_pagedir(unsigned nr_pages)
-{
-        unsigned num;
-        struct pbe *pblist, *pbe;
-
-        if (!nr_pages)
-                return NULL;
-
-        pr_debug("alloc_pagedir(): nr_pages = %d\n", nr_pages);
-        pblist = (struct pbe *)get_zeroed_page(GFP_ATOMIC | __GFP_COLD);
-        for (pbe = pblist, num = PBES_PER_PAGE; pbe && num < nr_pages;
-                        pbe = pbe->next, num += PBES_PER_PAGE) {
-                pbe += PB_PAGE_SKIP;
-                pbe->next = (struct pbe *)get_zeroed_page(GFP_ATOMIC | __GFP_COLD);
-        }
-        if (!pbe) { /* get_zeroed_page() failed */
-                free_pagedir(pblist);
-                pblist = NULL;
-        }
-        return pblist;
-}
-
-/**
- *      free_image_pages - Free pages allocated for snapshot
- */
-
-static void free_image_pages(void)
-{
-        struct pbe * p;
-
-        for_each_pbe (p, pagedir_save) {
-                if (p->address) {
-                        ClearPageNosave(virt_to_page(p->address));
-                        free_page(p->address);
-                        p->address = 0;
-                }
-        }
-}
-
-/**
- *      alloc_image_pages - Allocate pages for the snapshot.
- */
-
-static int alloc_image_pages(void)
-{
-        struct pbe * p;
-
-        for_each_pbe (p, pagedir_save) {
-                p->address = get_zeroed_page(GFP_ATOMIC | __GFP_COLD);
-                if (!p->address)
-                        return -ENOMEM;
-                SetPageNosave(virt_to_page(p->address));
-        }
-        return 0;
-}
-
-/* Free pages we allocated for suspend. Suspend pages are alocated
- * before atomic copy, so we need to free them after resume.
- */
-void swsusp_free(void)
-{
-        BUG_ON(PageNosave(virt_to_page(pagedir_save)));
-        BUG_ON(PageNosaveFree(virt_to_page(pagedir_save)));
-        free_image_pages();
-        free_pagedir(pagedir_save);
-}
-
-
-/**
- *      enough_free_mem - Make sure we enough free memory to snapshot.
- *
- *      Returns TRUE or FALSE after checking the number of available
- *      free pages.
- */
-
-static int enough_free_mem(void)
-{
-        if (nr_free_pages() < (nr_copy_pages + PAGES_FOR_IO)) {
-                pr_debug("swsusp: Not enough free pages: Have %d\n",
-                         nr_free_pages());
-                return 0;
-        }
-        return 1;
-}
-
-
 /**
  *      enough_swap - Make sure we have enough swap to save the image.
  *
@@ -909,87 +543,14 @@ static int enough_free_mem(void)
  *      We should only consider resume_device.
  */
 
-static int enough_swap(void)
+int enough_swap(unsigned nr_pages)
 {
         struct sysinfo i;
 
         si_swapinfo(&i);
-        if (i.freeswap < (nr_copy_pages + PAGES_FOR_IO))  {
-                pr_debug("swsusp: Not enough swap. Need %ld\n",i.freeswap);
-                return 0;
-        }
-        return 1;
-}
-
-static int swsusp_alloc(void)
-{
-        int error;
-
-        pagedir_nosave = NULL;
-        nr_copy_pages = calc_nr(nr_copy_pages);
-        nr_copy_pages_check = nr_copy_pages;
-
-        pr_debug("suspend: (pages needed: %d + %d free: %d)\n",
-                 nr_copy_pages, PAGES_FOR_IO, nr_free_pages());
-
-        if (!enough_free_mem())
-                return -ENOMEM;
-
-        if (!enough_swap())
-                return -ENOSPC;
-
-        if (MAX_PBES < nr_copy_pages / PBES_PER_PAGE +
-            !!(nr_copy_pages % PBES_PER_PAGE))
-                return -ENOSPC;
-
-        if (!(pagedir_save = alloc_pagedir(nr_copy_pages))) {
-                printk(KERN_ERR "suspend: Allocating pagedir failed.\n");
-                return -ENOMEM;
-        }
-        create_pbe_list(pagedir_save, nr_copy_pages);
-        pagedir_nosave = pagedir_save;
-        if ((error = alloc_image_pages())) {
-                printk(KERN_ERR "suspend: Allocating image pages failed.\n");
-                swsusp_free();
-                return error;
-        }
-
-        return 0;
-}
-
-static int suspend_prepare_image(void)
-{
-        int error;
-
-        pr_debug("swsusp: critical section: \n");
-        if (save_highmem()) {
-                printk(KERN_CRIT "Suspend machine: Not enough free pages for highmem\n");
-                restore_highmem();
-                return -ENOMEM;
-        }
-
-        drain_local_pages();
-        count_data_pages();
-        printk("swsusp: Need to copy %u pages\n", nr_copy_pages);
-
-        error = swsusp_alloc();
-        if (error)
-                return error;
-
-        /* During allocating of suspend pagedir, new cold pages may appear.
-         * Kill them.
-         */
-        drain_local_pages();
-        copy_data_pages();
-
-        /*
-         * End of critical section. From now on, we can write to memory,
-         * but we should not touch disk. This specially means we must _not_
-         * touch swap space! Except we must write out our image of course.
-         */
-
-        printk("swsusp: critical section/: done (%d pages copied)\n", nr_copy_pages );
-        return 0;
+        pr_debug("swsusp: available swap: %lu pages\n", i.freeswap);
+        return i.freeswap > (nr_pages + PAGES_FOR_IO +
+                (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE);
 }
 
 
@@ -1001,7 +562,7 @@ static int suspend_prepare_image(void)
 int swsusp_write(void)
 {
         int error;
-        device_resume();
+
         lock_swapdevices();
         error = write_suspend_image();
         /* This will unlock ignored swap devices since writing is finished */
@@ -1011,14 +572,6 @@ int swsusp_write(void)
 }
 
 
-extern asmlinkage int swsusp_arch_suspend(void);
-extern asmlinkage int swsusp_arch_resume(void);
-
-
-asmlinkage int swsusp_save(void)
-{
-        return suspend_prepare_image();
-}
 
 int swsusp_suspend(void)
 {
@@ -1050,7 +603,6 @@ int swsusp_suspend(void)
                 printk(KERN_ERR "Error %d suspending\n", error);
         /* Restore control flow magically appears here */
         restore_processor_state();
-        BUG_ON (nr_copy_pages_check != nr_copy_pages);
         restore_highmem();
         device_power_up();
         local_irq_enable();
@@ -1070,6 +622,11 @@ int swsusp_resume(void)
          * execution continues at place where swsusp_arch_suspend was called
          */
         BUG_ON(!error);
+        /* The only reason why swsusp_arch_resume() can fail is memory being
+         * very tight, so we have to free it as soon as we can to avoid
+         * subsequent failures
+         */
+        swsusp_free();
         restore_processor_state();
         restore_highmem();
         touch_softlockup_watchdog();
@@ -1085,54 +642,28 @@ int swsusp_resume(void)
  *
  *      We don't know which pages are usable until we allocate them.
  *
- *      Allocated but unusable (ie eaten) memory pages are linked together
- *      to create a list, so that we can free them easily
- *
- *      We could have used a type other than (void *)
- *      for this purpose, but ...
+ *      Allocated but unusable (ie eaten) memory pages are marked so that
+ *      swsusp_free() can release them
  */
-static void **eaten_memory = NULL;
-
-static inline void eat_page(void *page)
-{
-        void **c;
-
-        c = eaten_memory;
-        eaten_memory = page;
-        *eaten_memory = c;
-}
 
-unsigned long get_usable_page(gfp_t gfp_mask)
+unsigned long get_safe_page(gfp_t gfp_mask)
 {
         unsigned long m;
 
-        m = get_zeroed_page(gfp_mask);
-        while (!PageNosaveFree(virt_to_page(m))) {
-                eat_page((void *)m);
+        do {
                 m = get_zeroed_page(gfp_mask);
-                if (!m)
-                        break;
+                if (m && PageNosaveFree(virt_to_page(m)))
+                        /* This is for swsusp_free() */
+                        SetPageNosave(virt_to_page(m));
+        } while (m && PageNosaveFree(virt_to_page(m)));
+        if (m) {
+                /* This is for swsusp_free() */
+                SetPageNosave(virt_to_page(m));
+                SetPageNosaveFree(virt_to_page(m));
         }
         return m;
 }
 
-void free_eaten_memory(void)
-{
-        unsigned long m;
-        void **c;
-        int i = 0;
-
-        c = eaten_memory;
-        while (c) {
-                m = (unsigned long)c;
-                c = *c;
-                free_page(m);
-                i++;
-        }
-        eaten_memory = NULL;
-        pr_debug("swsusp: %d unused pages freed\n", i);
-}
-
 /**
  *      check_pagedir - We ensure here that pages that the PBEs point to
  *      won't collide with pages where we're going to restore from the loaded
@@ -1150,7 +681,7 @@ static int check_pagedir(struct pbe *pblist)
                 p->address = 0UL;
 
         for_each_pbe (p, pblist) {
-                p->address = get_usable_page(GFP_ATOMIC);
+                p->address = get_safe_page(GFP_ATOMIC);
                 if (!p->address)
                         return -ENOMEM;
         }
@@ -1169,7 +700,7 @@ static struct pbe * swsusp_pagedir_relocate(struct pbe *pblist)
         unsigned long zone_pfn;
         struct pbe *pbpage, *tail, *p;
         void *m;
-        int rel = 0, error = 0;
+        int rel = 0;
 
         if (!pblist) /* a sanity check */
                 return NULL;
@@ -1177,41 +708,37 @@ static struct pbe * swsusp_pagedir_relocate(struct pbe *pblist)
         pr_debug("swsusp: Relocating pagedir (%lu pages to check)\n",
                         swsusp_info.pagedir_pages);
 
-        /* Set page flags */
+        /* Clear page flags */
 
         for_each_zone (zone) {
                 for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn)
-                        SetPageNosaveFree(pfn_to_page(zone_pfn +
+                        if (pfn_valid(zone_pfn + zone->zone_start_pfn))
+                                ClearPageNosaveFree(pfn_to_page(zone_pfn +
                                         zone->zone_start_pfn));
         }
 
-        /* Clear orig addresses */
+        /* Mark orig addresses */
 
         for_each_pbe (p, pblist)
-                ClearPageNosaveFree(virt_to_page(p->orig_address));
+                SetPageNosaveFree(virt_to_page(p->orig_address));
 
         tail = pblist + PB_PAGE_SKIP;
 
         /* Relocate colliding pages */
 
         for_each_pb_page (pbpage, pblist) {
-                if (!PageNosaveFree(virt_to_page((unsigned long)pbpage))) {
-                        m = (void *)get_usable_page(GFP_ATOMIC | __GFP_COLD);
-                        if (!m) {
-                                error = -ENOMEM;
-                                break;
-                        }
+                if (PageNosaveFree(virt_to_page((unsigned long)pbpage))) {
+                        m = (void *)get_safe_page(GFP_ATOMIC | __GFP_COLD);
+                        if (!m)
+                                return NULL;
                         memcpy(m, (void *)pbpage, PAGE_SIZE);
                         if (pbpage == pblist)
                                 pblist = (struct pbe *)m;
                         else
                                 tail->next = (struct pbe *)m;
-
-                        eat_page((void *)pbpage);
                         pbpage = (struct pbe *)m;
 
                         /* We have to link the PBEs again */
-
                         for (p = pbpage; p < pbpage + PB_PAGE_SKIP; p++)
                                 if (p->next) /* needed to save the end */
                                         p->next = p + 1;
@@ -1221,15 +748,13 @@ static struct pbe * swsusp_pagedir_relocate(struct pbe *pblist)
                 tail = pbpage + PB_PAGE_SKIP;
         }
 
-        if (error) {
-                printk("\nswsusp: Out of memory\n\n");
-                free_pagedir(pblist);
-                free_eaten_memory();
-                pblist = NULL;
-                /* Is this even worth handling? It should never ever happen, and we
-                   have just lost user's state, anyway... */
-        } else
-                printk("swsusp: Relocated %d pages\n", rel);
+        /* This is for swsusp_free() */
+        for_each_pb_page (pbpage, pblist) {
+                SetPageNosave(virt_to_page(pbpage));
+                SetPageNosaveFree(virt_to_page(pbpage));
+        }
+
+        printk("swsusp: Relocated %d pages\n", rel);
 
         return pblist;
 }
@@ -1447,9 +972,7 @@ static int read_pagedir(struct pbe *pblist)
                         break;
         }
 
-        if (error)
-                free_pagedir(pblist);
-        else
+        if (!error)
                 BUG_ON(i != swsusp_info.pagedir_pages);
 
         return error;
@@ -1492,15 +1015,6 @@ static int read_suspend_image(void)
         if (!error)
                 error = data_read(pagedir_nosave);
 
-        if (error) { /* We fail cleanly */
-                free_eaten_memory();
-                for_each_pbe (p, pagedir_nosave)
-                        if (p->address) {
-                                free_page(p->address);
-                                p->address = 0UL;
-                        }
-                free_pagedir(pagedir_nosave);
-        }
         return error;
 }
 
diff --git a/kernel/printk.c b/kernel/printk.c
index 4b8f0f9230a4..3cb9708209bc 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -10,7 +10,7 @@
  * elsewhere, in preparation for a serial line console (someday).
  * Ted Ts'o, 2/11/93.
  * Modified for sysctl support, 1/8/97, Chris Horn.
- * Fixed SMP synchronization, 08/08/99, Manfred Spraul 
+ * Fixed SMP synchronization, 08/08/99, Manfred Spraul
  *     manfreds@colorfullife.com
  * Rewrote bits to get rid of console_lock
  *      01Mar01 Andrew Morton <andrewm@uow.edu.au>
@@ -148,7 +148,7 @@ static int __init console_setup(char *str)
         if (!strcmp(str, "ttyb"))
                 strcpy(name, "ttyS1");
 #endif
-        for(s = name; *s; s++)
+        for (s = name; *s; s++)
                 if ((*s >= '0' && *s <= '9') || *s == ',')
                         break;
         idx = simple_strtoul(s, NULL, 10);
@@ -169,11 +169,11 @@ static int __init log_buf_len_setup(char *str)
                 size = roundup_pow_of_two(size);
         if (size > log_buf_len) {
                 unsigned long start, dest_idx, offset;
-                char * new_log_buf;
+                char *new_log_buf;
 
                 new_log_buf = alloc_bootmem(size);
                 if (!new_log_buf) {
-                        printk("log_buf_len: allocation failed\n");
+                        printk(KERN_WARNING "log_buf_len: allocation failed\n");
                         goto out;
                 }
 
@@ -193,10 +193,9 @@ static int __init log_buf_len_setup(char *str)
                 log_end -= offset;
                 spin_unlock_irqrestore(&logbuf_lock, flags);
 
-                printk("log_buf_len: %d\n", log_buf_len);
+                printk(KERN_NOTICE "log_buf_len: %d\n", log_buf_len);
         }
 out:
-
         return 1;
 }
 
@@ -217,7 +216,7 @@ __setup("log_buf_len=", log_buf_len_setup);
  *      9 -- Return number of unread characters in the log buffer
  *     10 -- Return size of the log buffer
  */
-int do_syslog(int type, char __user * buf, int len)
+int do_syslog(int type, char __user *buf, int len)
 {
         unsigned long i, j, limit, count;
         int do_clear = 0;
@@ -244,7 +243,8 @@ int do_syslog(int type, char __user * buf, int len)
                         error = -EFAULT;
                         goto out;
                 }
-                error = wait_event_interruptible(log_wait, (log_start - log_end));
+                error = wait_event_interruptible(log_wait,
+                                                        (log_start - log_end));
                 if (error)
                         goto out;
                 i = 0;
@@ -264,7 +264,7 @@ int do_syslog(int type, char __user * buf, int len)
                         error = i;
                 break;
         case 4:         /* Read/clear last kernel messages */
-                do_clear = 1; 
+                do_clear = 1;
                 /* FALL THRU */
         case 3:         /* Read last kernel messages */
                 error = -EINVAL;
@@ -288,11 +288,11 @@ int do_syslog(int type, char __user * buf, int len)
                 limit = log_end;
                 /*
                  * __put_user() could sleep, and while we sleep
-                 * printk() could overwrite the messages 
+                 * printk() could overwrite the messages
                  * we try to copy to user space. Therefore
                  * the messages are copied in reverse. <manfreds>
                  */
-                for(i = 0; i < count && !error; i++) {
+                for (i = 0; i < count && !error; i++) {
                         j = limit-1-i;
                         if (j + log_buf_len < log_end)
                                 break;
@@ -306,10 +306,10 @@ int do_syslog(int type, char __user * buf, int len)
                 if (error)
                         break;
                 error = i;
-                if(i != count) {
+                if (i != count) {
                         int offset = count-error;
                         /* buffer overflow during copy, correct user buffer. */
-                        for(i=0;i<error;i++) {
+                        for (i = 0; i < error; i++) {
                                 if (__get_user(c,&buf[i+offset]) ||
                                     __put_user(c,&buf[i])) {
                                         error = -EFAULT;
@@ -351,7 +351,7 @@ out:
         return error;
 }
 
-asmlinkage long sys_syslog(int type, char __user * buf, int len)
+asmlinkage long sys_syslog(int type, char __user *buf, int len)
 {
         return do_syslog(type, buf, len);
 }
@@ -404,21 +404,19 @@ static void call_console_drivers(unsigned long start, unsigned long end)
         cur_index = start;
         start_print = start;
         while (cur_index != end) {
-                if (    msg_level < 0 &&
-                        ((end - cur_index) > 2) &&
-                        LOG_BUF(cur_index + 0) == '<' &&
-                        LOG_BUF(cur_index + 1) >= '0' &&
-                        LOG_BUF(cur_index + 1) <= '7' &&
-                        LOG_BUF(cur_index + 2) == '>')
-                {
+                if (msg_level < 0 && ((end - cur_index) > 2) &&
+                                LOG_BUF(cur_index + 0) == '<' &&
+                                LOG_BUF(cur_index + 1) >= '0' &&
+                                LOG_BUF(cur_index + 1) <= '7' &&
+                                LOG_BUF(cur_index + 2) == '>') {
                         msg_level = LOG_BUF(cur_index + 1) - '0';
                         cur_index += 3;
                         start_print = cur_index;
                 }
                 while (cur_index != end) {
                         char c = LOG_BUF(cur_index);
-                        cur_index++;
 
+                        cur_index++;
                         if (c == '\n') {
                                 if (msg_level < 0) {
                                         /*
@@ -461,7 +459,7 @@ static void zap_locks(void)
         static unsigned long oops_timestamp;
 
         if (time_after_eq(jiffies, oops_timestamp) &&
-                        !time_after(jiffies, oops_timestamp + 30*HZ))
+                        !time_after(jiffies, oops_timestamp + 30 * HZ))
                 return;
 
         oops_timestamp = jiffies;
@@ -495,7 +493,7 @@ __attribute__((weak)) unsigned long long printk_clock(void)
 
 /*
  * This is printk.  It can be called from any context.  We want it to work.
- * 
+ *
  * We try to grab the console_sem.  If we succeed, it's easy - we log the output and
  * call the console drivers.  If we fail to get the semaphore we place the output
  * into the log buffer and return.  The current holder of the console_sem will
@@ -639,13 +637,19 @@ EXPORT_SYMBOL(vprintk);
 
 #else
 
-asmlinkage long sys_syslog(int type, char __user * buf, int len)
+asmlinkage long sys_syslog(int type, char __user *buf, int len)
 {
         return 0;
 }
 
-int do_syslog(int type, char __user * buf, int len) { return 0; }
-static void call_console_drivers(unsigned long start, unsigned long end) {}
+int do_syslog(int type, char __user *buf, int len)
+{
+        return 0;
+}
+
+static void call_console_drivers(unsigned long start, unsigned long end)
+{
+}
 
 #endif
 
@@ -851,9 +855,9 @@ EXPORT_SYMBOL(console_start);
  * print any messages that were printed by the kernel before the
  * console driver was initialized.
  */
-void register_console(struct console * console)
+void register_console(struct console *console)
 {
-        int     i;
+        int i;
         unsigned long flags;
 
         if (preferred_console < 0)
@@ -878,7 +882,8 @@ void register_console(struct console * console)
          *      See if this console matches one we selected on
          *      the command line.
          */
-        for(i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++) {
+        for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0];
+                        i++) {
                 if (strcmp(console_cmdline[i].name, console->name) != 0)
                         continue;
                 if (console->index >= 0 &&
@@ -933,9 +938,9 @@ void register_console(struct console * console)
 }
 EXPORT_SYMBOL(register_console);
 
-int unregister_console(struct console * console)
+int unregister_console(struct console *console)
 {
-        struct console *a,*b;
+        struct console *a, *b;
         int res = 1;
 
         acquire_console_sem();
@@ -949,10 +954,10 @@ int unregister_console(struct console * console)
                                 b->next = a->next;
                                 res = 0;
                                 break;
-                        }  
+                        }
                 }
         }
-        
+
         /* If last console is removed, we re-enable picking the first
          * one that gets registered. Without that, pmac early boot console
          * would prevent fbcon from taking over.
@@ -994,7 +999,7 @@ void tty_write_message(struct tty_struct *tty, char *msg)
 int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst)
 {
         static DEFINE_SPINLOCK(ratelimit_lock);
-        static unsigned long toks = 10*5*HZ;
+        static unsigned long toks = 10 * 5 * HZ;
         static unsigned long last_msg;
         static int missed;
         unsigned long flags;
@@ -1007,6 +1012,7 @@ int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst)
                 toks = ratelimit_burst * ratelimit_jiffies;
         if (toks >= ratelimit_jiffies) {
                 int lost = missed;
+
                 missed = 0;
                 toks -= ratelimit_jiffies;
                 spin_unlock_irqrestore(&ratelimit_lock, flags);
@@ -1021,7 +1027,7 @@ int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst)
 EXPORT_SYMBOL(__printk_ratelimit);
 
 /* minimum time in jiffies between messages */
-int printk_ratelimit_jiffies = 5*HZ;
+int printk_ratelimit_jiffies = 5 * HZ;
 
 /* number of messages we send before ratelimiting */
 int printk_ratelimit_burst = 10;
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 019e04ec065a..863eee8bff47 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -56,6 +56,10 @@ void ptrace_untrace(task_t *child)
                         signal_wake_up(child, 1);
                 }
         }
+        if (child->signal->flags & SIGNAL_GROUP_EXIT) {
+                sigaddset(&child->pending.signal, SIGKILL);
+                signal_wake_up(child, 1);
+        }
         spin_unlock(&child->sighand->siglock);
 }
 
@@ -77,8 +81,7 @@ void __ptrace_unlink(task_t *child)
                 SET_LINKS(child);
         }
 
-        if (child->state == TASK_TRACED)
-                ptrace_untrace(child);
+        ptrace_untrace(child);
 }
 
 /*
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 2559d4b8f23f..c4d159a21e04 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -154,6 +154,15 @@ void fastcall call_rcu_bh(struct rcu_head *head,
 }
 
 /*
+ * Return the number of RCU batches processed thus far.  Useful
+ * for debug and statistics.
+ */
+long rcu_batches_completed(void)
+{
+        return rcu_ctrlblk.completed;
+}
+
+/*
  * Invoke the completed RCU callbacks. They are expected to be in
  * a per-cpu list.
  */
@@ -501,6 +510,7 @@ void synchronize_kernel(void)
 }
 
 module_param(maxbatch, int, 0);
+EXPORT_SYMBOL_GPL(rcu_batches_completed);
 EXPORT_SYMBOL(call_rcu);  /* WARNING: GPL-only in April 2006. */
 EXPORT_SYMBOL(call_rcu_bh);  /* WARNING: GPL-only in April 2006. */
 EXPORT_SYMBOL_GPL(synchronize_rcu);
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
new file mode 100644
index 000000000000..9b58f1eff3ca
--- /dev/null
+++ b/kernel/rcutorture.c
@@ -0,0 +1,492 @@
+/*
+ * Read-Copy Update /proc-based torture test facility
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2005
+ *
+ * Authors: Paul E. McKenney <paulmck@us.ibm.com>
+ *
+ * See also:  Documentation/RCU/torture.txt
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kthread.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/smp.h>
+#include <linux/rcupdate.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <asm/atomic.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/completion.h>
+#include <linux/moduleparam.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/rcuref.h>
+#include <linux/cpu.h>
+#include <linux/random.h>
+#include <linux/delay.h>
+#include <linux/byteorder/swabb.h>
+#include <linux/stat.h>
+
+MODULE_LICENSE("GPL");
+
+static int nreaders = -1;       /* # reader threads, defaults to 4*ncpus */
+static int stat_interval = 0;   /* Interval between stats, in seconds. */
+                                /*  Defaults to "only at end of test". */
+static int verbose = 0;         /* Print more debug info. */
+
+MODULE_PARM(nreaders, "i");
+MODULE_PARM_DESC(nreaders, "Number of RCU reader threads");
+MODULE_PARM(stat_interval, "i");
+MODULE_PARM_DESC(stat_interval, "Number of seconds between stats printk()s");
+MODULE_PARM(verbose, "i");
+MODULE_PARM_DESC(verbose, "Enable verbose debugging printk()s");
+#define TORTURE_FLAG "rcutorture: "
+#define PRINTK_STRING(s) \
+        do { printk(KERN_ALERT TORTURE_FLAG s "\n"); } while (0)
+#define VERBOSE_PRINTK_STRING(s) \
+        do { if (verbose) printk(KERN_ALERT TORTURE_FLAG s "\n"); } while (0)
+#define VERBOSE_PRINTK_ERRSTRING(s) \
+        do { if (verbose) printk(KERN_ALERT TORTURE_FLAG "!!! " s "\n"); } while (0)
+
+static char printk_buf[4096];
+
+static int nrealreaders;
+static struct task_struct *writer_task;
+static struct task_struct **reader_tasks;
+static struct task_struct *stats_task;
+
+#define RCU_TORTURE_PIPE_LEN 10
+
+struct rcu_torture {
+        struct rcu_head rtort_rcu;
+        int rtort_pipe_count;
+        struct list_head rtort_free;
+};
+
+static int fullstop = 0;        /* stop generating callbacks at test end. */
+static LIST_HEAD(rcu_torture_freelist);
+static struct rcu_torture *rcu_torture_current = NULL;
+static long rcu_torture_current_version = 0;
+static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
+static DEFINE_SPINLOCK(rcu_torture_lock);
+static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
+        { 0 };
+static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) =
+        { 0 };
+static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
+atomic_t n_rcu_torture_alloc;
+atomic_t n_rcu_torture_alloc_fail;
+atomic_t n_rcu_torture_free;
+
+/*
+ * Allocate an element from the rcu_tortures pool.
+ */
+struct rcu_torture *
+rcu_torture_alloc(void)
+{
+        struct list_head *p;
+
+        spin_lock(&rcu_torture_lock);
+        if (list_empty(&rcu_torture_freelist)) {
+                atomic_inc(&n_rcu_torture_alloc_fail);
+                spin_unlock(&rcu_torture_lock);
+                return NULL;
+        }
+        atomic_inc(&n_rcu_torture_alloc);
+        p = rcu_torture_freelist.next;
+        list_del_init(p);
+        spin_unlock(&rcu_torture_lock);
+        return container_of(p, struct rcu_torture, rtort_free);
+}
+
+/*
+ * Free an element to the rcu_tortures pool.
+ */
+static void
+rcu_torture_free(struct rcu_torture *p)
+{
+        atomic_inc(&n_rcu_torture_free);
+        spin_lock(&rcu_torture_lock);
+        list_add_tail(&p->rtort_free, &rcu_torture_freelist);
+        spin_unlock(&rcu_torture_lock);
+}
+
+static void
+rcu_torture_cb(struct rcu_head *p)
+{
+        int i;
+        struct rcu_torture *rp = container_of(p, struct rcu_torture, rtort_rcu);
+
+        if (fullstop) {
+                /* Test is ending, just drop callbacks on the floor. */
+                /* The next initialization will pick up the pieces. */
+                return;
+        }
+        i = rp->rtort_pipe_count;
+        if (i > RCU_TORTURE_PIPE_LEN)
+                i = RCU_TORTURE_PIPE_LEN;
+        atomic_inc(&rcu_torture_wcount[i]);
+        if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN)
+                rcu_torture_free(rp);
+        else
+                call_rcu(p, rcu_torture_cb);
+}
+
+struct rcu_random_state {
+        unsigned long rrs_state;
+        unsigned long rrs_count;
+};
+
+#define RCU_RANDOM_MULT 39916801  /* prime */
+#define RCU_RANDOM_ADD  479001701 /* prime */
+#define RCU_RANDOM_REFRESH 10000
+
+#define DEFINE_RCU_RANDOM(name) struct rcu_random_state name = { 0, 0 }
+
+/*
+ * Crude but fast random-number generator.  Uses a linear congruential
+ * generator, with occasional help from get_random_bytes().
+ */
+static long
+rcu_random(struct rcu_random_state *rrsp)
+{
+        long refresh;
+
+        if (--rrsp->rrs_count < 0) {
+                get_random_bytes(&refresh, sizeof(refresh));
+                rrsp->rrs_state += refresh;
+                rrsp->rrs_count = RCU_RANDOM_REFRESH;
+        }
+        rrsp->rrs_state = rrsp->rrs_state * RCU_RANDOM_MULT + RCU_RANDOM_ADD;
+        return swahw32(rrsp->rrs_state);
+}
+
+/*
+ * RCU torture writer kthread.  Repeatedly substitutes a new structure
+ * for that pointed to by rcu_torture_current, freeing the old structure
+ * after a series of grace periods (the "pipeline").
+ */
+static int
+rcu_torture_writer(void *arg)
+{
+        int i;
+        long oldbatch = rcu_batches_completed();
+        struct rcu_torture *rp;
+        struct rcu_torture *old_rp;
+        static DEFINE_RCU_RANDOM(rand);
+
+        VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
+        do {
+                schedule_timeout_uninterruptible(1);
+                if (rcu_batches_completed() == oldbatch)
+                        continue;
+                if ((rp = rcu_torture_alloc()) == NULL)
+                        continue;
+                rp->rtort_pipe_count = 0;
+                udelay(rcu_random(&rand) & 0x3ff);
+                old_rp = rcu_torture_current;
+                rcu_assign_pointer(rcu_torture_current, rp);
+                smp_wmb();
+                if (old_rp != NULL) {
+                        i = old_rp->rtort_pipe_count;
+                        if (i > RCU_TORTURE_PIPE_LEN)
+                                i = RCU_TORTURE_PIPE_LEN;
+                        atomic_inc(&rcu_torture_wcount[i]);
+                        old_rp->rtort_pipe_count++;
+                        call_rcu(&old_rp->rtort_rcu, rcu_torture_cb);
+                }
+                rcu_torture_current_version++;
+                oldbatch = rcu_batches_completed();
+        } while (!kthread_should_stop() && !fullstop);
+        VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");
+        while (!kthread_should_stop())
+                schedule_timeout_uninterruptible(1);
+        return 0;
+}
+
+/*
+ * RCU torture reader kthread.  Repeatedly dereferences rcu_torture_current,
+ * incrementing the corresponding element of the pipeline array.  The
+ * counter in the element should never be greater than 1, otherwise, the
+ * RCU implementation is broken.
+ */
+static int
+rcu_torture_reader(void *arg)
+{
+        int completed;
+        DEFINE_RCU_RANDOM(rand);
+        struct rcu_torture *p;
+        int pipe_count;
+
+        VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
+        do {
+                rcu_read_lock();
+                completed = rcu_batches_completed();
+                p = rcu_dereference(rcu_torture_current);
+                if (p == NULL) {
+                        /* Wait for rcu_torture_writer to get underway */
+                        rcu_read_unlock();
+                        schedule_timeout_interruptible(HZ);
+                        continue;
+                }
+                udelay(rcu_random(&rand) & 0x7f);
+                preempt_disable();
+                pipe_count = p->rtort_pipe_count;
+                if (pipe_count > RCU_TORTURE_PIPE_LEN) {
+                        /* Should not happen, but... */
+                        pipe_count = RCU_TORTURE_PIPE_LEN;
+                }
+                ++__get_cpu_var(rcu_torture_count)[pipe_count];
+                completed = rcu_batches_completed() - completed;
+                if (completed > RCU_TORTURE_PIPE_LEN) {
+                        /* Should not happen, but... */
+                        completed = RCU_TORTURE_PIPE_LEN;
+                }
+                ++__get_cpu_var(rcu_torture_batch)[completed];
+                preempt_enable();
+                rcu_read_unlock();
+                schedule();
+        } while (!kthread_should_stop() && !fullstop);
+        VERBOSE_PRINTK_STRING("rcu_torture_reader task stopping");
+        while (!kthread_should_stop())
+                schedule_timeout_uninterruptible(1);
+        return 0;
+}
+
+/*
+ * Create an RCU-torture statistics message in the specified buffer.
+ */
+static int
+rcu_torture_printk(char *page)
+{
+        int cnt = 0;
+        int cpu;
+        int i;
+        long pipesummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
+        long batchsummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
+
+        for_each_cpu(cpu) {
+                for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+                        pipesummary[i] += per_cpu(rcu_torture_count, cpu)[i];
+                        batchsummary[i] += per_cpu(rcu_torture_batch, cpu)[i];
+                }
+        }
+        for (i = RCU_TORTURE_PIPE_LEN - 1; i >= 0; i--) {
+                if (pipesummary[i] != 0)
+                        break;
+        }
+        cnt += sprintf(&page[cnt], "rcutorture: ");
+        cnt += sprintf(&page[cnt],
+                       "rtc: %p ver: %ld tfle: %d rta: %d rtaf: %d rtf: %d",
+                       rcu_torture_current,
+                       rcu_torture_current_version,
+                       list_empty(&rcu_torture_freelist),
+                       atomic_read(&n_rcu_torture_alloc),
+                       atomic_read(&n_rcu_torture_alloc_fail),
+                       atomic_read(&n_rcu_torture_free));
+        cnt += sprintf(&page[cnt], "\nrcutorture: ");
+        if (i > 1)
+                cnt += sprintf(&page[cnt], "!!! ");
+        cnt += sprintf(&page[cnt], "Reader Pipe: ");
+        for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
+                cnt += sprintf(&page[cnt], " %ld", pipesummary[i]);
+        cnt += sprintf(&page[cnt], "\nrcutorture: ");
+        cnt += sprintf(&page[cnt], "Reader Batch: ");
+        for (i = 0; i < RCU_TORTURE_PIPE_LEN; i++)
+                cnt += sprintf(&page[cnt], " %ld", batchsummary[i]);
+        cnt += sprintf(&page[cnt], "\nrcutorture: ");
+        cnt += sprintf(&page[cnt], "Free-Block Circulation: ");
+        for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+                cnt += sprintf(&page[cnt], " %d",
+                               atomic_read(&rcu_torture_wcount[i]));
+        }
+        cnt += sprintf(&page[cnt], "\n");
+        return cnt;
+}
+
+/*
+ * Print torture statistics.  Caller must ensure that there is only
+ * one call to this function at a given time!!!  This is normally
+ * accomplished by relying on the module system to only have one copy
+ * of the module loaded, and then by giving the rcu_torture_stats
+ * kthread full control (or the init/cleanup functions when rcu_torture_stats
+ * thread is not running).
+ */
+static void
+rcu_torture_stats_print(void)
+{
+        int cnt;
+
+        cnt = rcu_torture_printk(printk_buf);
+        printk(KERN_ALERT "%s", printk_buf);
+}
+
+/*
+ * Periodically prints torture statistics, if periodic statistics printing
+ * was specified via the stat_interval module parameter.
+ *
+ * No need to worry about fullstop here, since this one doesn't reference
+ * volatile state or register callbacks.
+ */
+static int
+rcu_torture_stats(void *arg)
+{
+        VERBOSE_PRINTK_STRING("rcu_torture_stats task started");
+        do {
+                schedule_timeout_interruptible(stat_interval * HZ);
+                rcu_torture_stats_print();
+        } while (!kthread_should_stop());
+        VERBOSE_PRINTK_STRING("rcu_torture_stats task stopping");
+        return 0;
+}
+
+static void
+rcu_torture_cleanup(void)
+{
+        int i;
+
+        fullstop = 1;
+        if (writer_task != NULL) {
+                VERBOSE_PRINTK_STRING("Stopping rcu_torture_writer task");
+                kthread_stop(writer_task);
+        }
+        writer_task = NULL;
+
+        if (reader_tasks != NULL) {
+                for (i = 0; i < nrealreaders; i++) {
+                        if (reader_tasks[i] != NULL) {
+                                VERBOSE_PRINTK_STRING(
+                                        "Stopping rcu_torture_reader task");
+                                kthread_stop(reader_tasks[i]);
+                        }
+                        reader_tasks[i] = NULL;
+                }
+                kfree(reader_tasks);
+                reader_tasks = NULL;
+        }
+        rcu_torture_current = NULL;
+
+        if (stats_task != NULL) {
+                VERBOSE_PRINTK_STRING("Stopping rcu_torture_stats task");
+                kthread_stop(stats_task);
+        }
+        stats_task = NULL;
+
+        /* Wait for all RCU callbacks to fire.  */
+
+        for (i = 0; i < RCU_TORTURE_PIPE_LEN; i++)
+                synchronize_rcu();
+        rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
+        PRINTK_STRING("--- End of test");
+}
+
+static int
+rcu_torture_init(void)
+{
+        int i;
+        int cpu;
+        int firsterr = 0;
+
+        /* Process args and tell the world that the torturer is on the job. */
+
+        if (nreaders >= 0)
+                nrealreaders = nreaders;
+        else
+                nrealreaders = 2 * num_online_cpus();
+        printk(KERN_ALERT TORTURE_FLAG
+               "--- Start of test: nreaders=%d stat_interval=%d verbose=%d\n",
+               nrealreaders, stat_interval, verbose);
+        fullstop = 0;
+
+        /* Set up the freelist. */
+
+        INIT_LIST_HEAD(&rcu_torture_freelist);
+        for (i = 0; i < sizeof(rcu_tortures) / sizeof(rcu_tortures[0]); i++) {
+                list_add_tail(&rcu_tortures[i].rtort_free,
+                              &rcu_torture_freelist);
+        }
+
+        /* Initialize the statistics so that each run gets its own numbers. */
+
+        rcu_torture_current = NULL;
+        rcu_torture_current_version = 0;
+        atomic_set(&n_rcu_torture_alloc, 0);
+        atomic_set(&n_rcu_torture_alloc_fail, 0);
+        atomic_set(&n_rcu_torture_free, 0);
+        for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
+                atomic_set(&rcu_torture_wcount[i], 0);
+        for_each_cpu(cpu) {
+                for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+                        per_cpu(rcu_torture_count, cpu)[i] = 0;
+                        per_cpu(rcu_torture_batch, cpu)[i] = 0;
+                }
+        }
+
+        /* Start up the kthreads. */
+
+        VERBOSE_PRINTK_STRING("Creating rcu_torture_writer task");
+        writer_task = kthread_run(rcu_torture_writer, NULL,
+                                  "rcu_torture_writer");
+        if (IS_ERR(writer_task)) {
+                firsterr = PTR_ERR(writer_task);
+                VERBOSE_PRINTK_ERRSTRING("Failed to create writer");
+                writer_task = NULL;
+                goto unwind;
+        }
+        reader_tasks = kmalloc(nrealreaders * sizeof(reader_tasks[0]),
+                               GFP_KERNEL);
+        if (reader_tasks == NULL) {
+                VERBOSE_PRINTK_ERRSTRING("out of memory");
+                firsterr = -ENOMEM;
+                goto unwind;
+        }
+        for (i = 0; i < nrealreaders; i++) {
+                VERBOSE_PRINTK_STRING("Creating rcu_torture_reader task");
+                reader_tasks[i] = kthread_run(rcu_torture_reader, NULL,
+                                              "rcu_torture_reader");
+                if (IS_ERR(reader_tasks[i])) {
+                        firsterr = PTR_ERR(reader_tasks[i]);
+                        VERBOSE_PRINTK_ERRSTRING("Failed to create reader");
+                        reader_tasks[i] = NULL;
+                        goto unwind;
+                }
+        }
+        if (stat_interval > 0) {
+                VERBOSE_PRINTK_STRING("Creating rcu_torture_stats task");
+                stats_task = kthread_run(rcu_torture_stats, NULL,
+                                        "rcu_torture_stats");
+                if (IS_ERR(stats_task)) {
+                        firsterr = PTR_ERR(stats_task);
+                        VERBOSE_PRINTK_ERRSTRING("Failed to create stats");
+                        stats_task = NULL;
+                        goto unwind;
+                }
+        }
+        return 0;
+
+unwind:
+        rcu_torture_cleanup();
+        return firsterr;
+}
+
+module_init(rcu_torture_init);
+module_exit(rcu_torture_cleanup);
diff --git a/kernel/sched.c b/kernel/sched.c
index 4f26c544d02c..340dd238c16d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3877,7 +3877,6 @@ EXPORT_SYMBOL(cpu_present_map);
 
 #ifndef CONFIG_SMP
 cpumask_t cpu_online_map = CPU_MASK_ALL;
-EXPORT_SYMBOL_GPL(cpu_online_map);
 cpumask_t cpu_possible_map = CPU_MASK_ALL;
 #endif
 
diff --git a/kernel/signal.c b/kernel/signal.c
index 6904bbbfe116..1bf3c39d6109 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -277,7 +277,6 @@ static struct sigqueue *__sigqueue_alloc(struct task_struct *t, gfp_t flags,
         } else {
                 INIT_LIST_HEAD(&q->list);
                 q->flags = 0;
-                q->lock = NULL;
                 q->user = get_uid(t->user);
         }
         return(q);
@@ -652,8 +651,7 @@ static int check_kill_permission(int sig, struct siginfo *info,
         if (!valid_signal(sig))
                 return error;
         error = -EPERM;
-        if ((!info || ((unsigned long)info != 1 &&
-                        (unsigned long)info != 2 && SI_FROMUSER(info)))
+        if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info)))
             && ((sig != SIGCONT) ||
                 (current->signal->session != t->signal->session))
             && (current->euid ^ t->suid) && (current->euid ^ t->uid)
@@ -790,7 +788,7 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
          * fast-pathed signals for kernel-internal things like SIGSTOP
          * or SIGKILL.
          */
-        if ((unsigned long)info == 2)
+        if (info == SEND_SIG_FORCED)
                 goto out_set;
 
         /* Real-time signals must be queued if sent by sigqueue, or
@@ -802,19 +800,19 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
            pass on the info struct.  */
 
         q = __sigqueue_alloc(t, GFP_ATOMIC, (sig < SIGRTMIN &&
-                                             ((unsigned long) info < 2 ||
+                                             (is_si_special(info) ||
                                               info->si_code >= 0)));
         if (q) {
                 list_add_tail(&q->list, &signals->list);
                 switch ((unsigned long) info) {
-                case 0:
+                case (unsigned long) SEND_SIG_NOINFO:
                         q->info.si_signo = sig;
                         q->info.si_errno = 0;
                         q->info.si_code = SI_USER;
                         q->info.si_pid = current->pid;
                         q->info.si_uid = current->uid;
                         break;
-                case 1:
+                case (unsigned long) SEND_SIG_PRIV:
                         q->info.si_signo = sig;
                         q->info.si_errno = 0;
                         q->info.si_code = SI_KERNEL;
@@ -825,20 +823,13 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
                         copy_siginfo(&q->info, info);
                         break;
                 }
-        } else {
-                if (sig >= SIGRTMIN && info && (unsigned long)info != 1
-                   && info->si_code != SI_USER)
+        } else if (!is_si_special(info)) {
+                if (sig >= SIGRTMIN && info->si_code != SI_USER)
                 /*
                  * Queue overflow, abort.  We may abort if the signal was rt
                  * and sent by user using something other than kill().
                  */
                         return -EAGAIN;
-                if (((unsigned long)info > 1) && (info->si_code == SI_TIMER))
-                        /*
-                         * Set up a return to indicate that we dropped 
-                         * the signal.
-                         */
-                        ret = info->si_sys_private;
         }
 
 out_set:
@@ -859,12 +850,6 @@ specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
                 BUG();
         assert_spin_locked(&t->sighand->siglock);
 
-        if (((unsigned long)info > 2) && (info->si_code == SI_TIMER))
-                /*
-                 * Set up a return to indicate that we dropped the signal.
-                 */
-                ret = info->si_sys_private;
-
         /* Short-circuit ignored signals.  */
         if (sig_ignored(t, sig))
                 goto out;
@@ -894,11 +879,13 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
         int ret;
 
         spin_lock_irqsave(&t->sighand->siglock, flags);
-        if (sigismember(&t->blocked, sig) || t->sighand->action[sig-1].sa.sa_handler == SIG_IGN) {
+        if (t->sighand->action[sig-1].sa.sa_handler == SIG_IGN) {
                 t->sighand->action[sig-1].sa.sa_handler = SIG_DFL;
+        }
+        if (sigismember(&t->blocked, sig)) {
                 sigdelset(&t->blocked, sig);
-                recalc_sigpending_tsk(t);
         }
+        recalc_sigpending_tsk(t);
         ret = specific_send_sig_info(sig, info, t);
         spin_unlock_irqrestore(&t->sighand->siglock, flags);
 
@@ -908,15 +895,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 void
 force_sig_specific(int sig, struct task_struct *t)
 {
-        unsigned long int flags;
-
-        spin_lock_irqsave(&t->sighand->siglock, flags);
-        if (t->sighand->action[sig-1].sa.sa_handler == SIG_IGN)
-                t->sighand->action[sig-1].sa.sa_handler = SIG_DFL;
-        sigdelset(&t->blocked, sig);
-        recalc_sigpending_tsk(t);
-        specific_send_sig_info(sig, (void *)2, t);
-        spin_unlock_irqrestore(&t->sighand->siglock, flags);
+        force_sig_info(sig, SEND_SIG_FORCED, t);
 }
 
 /*
@@ -1051,12 +1030,6 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
         assert_spin_locked(&p->sighand->siglock);
         handle_stop_signal(sig, p);
 
-        if (((unsigned long)info > 2) && (info->si_code == SI_TIMER))
-                /*
-                 * Set up a return to indicate that we dropped the signal.
-                 */
-                ret = info->si_sys_private;
-
         /* Short-circuit ignored signals.  */
         if (sig_ignored(p, sig))
                 return ret;
@@ -1109,8 +1082,8 @@ void zap_other_threads(struct task_struct *p)
                 if (t != p->group_leader)
                         t->exit_signal = -1;
 
+                /* SIGKILL will be handled before any pending SIGSTOP */
                 sigaddset(&t->pending.signal, SIGKILL);
-                rm_from_queue(SIG_KERNEL_STOP_MASK, &t->pending);
                 signal_wake_up(t, 1);
         }
 }
@@ -1286,10 +1259,13 @@ send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
         return ret;
 }
 
+#define __si_special(priv) \
+        ((priv) ? SEND_SIG_PRIV : SEND_SIG_NOINFO)
+
 int
 send_sig(int sig, struct task_struct *p, int priv)
 {
-        return send_sig_info(sig, (void*)(long)(priv != 0), p);
+        return send_sig_info(sig, __si_special(priv), p);
 }
 
 /*
@@ -1309,7 +1285,7 @@ send_group_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 void
 force_sig(int sig, struct task_struct *p)
 {
-        force_sig_info(sig, (void*)1L, p);
+        force_sig_info(sig, SEND_SIG_PRIV, p);
 }
 
 /*
@@ -1334,13 +1310,13 @@ force_sigsegv(int sig, struct task_struct *p)
 int
 kill_pg(pid_t pgrp, int sig, int priv)
 {
-        return kill_pg_info(sig, (void *)(long)(priv != 0), pgrp);
+        return kill_pg_info(sig, __si_special(priv), pgrp);
 }
 
 int
 kill_proc(pid_t pid, int sig, int priv)
 {
-        return kill_proc_info(sig, (void *)(long)(priv != 0), pid);
+        return kill_proc_info(sig, __si_special(priv), pid);
 }
 
 /*
@@ -1371,11 +1347,12 @@ void sigqueue_free(struct sigqueue *q)
          * pending queue.
          */
         if (unlikely(!list_empty(&q->list))) {
-                read_lock(&tasklist_lock);  
-                spin_lock_irqsave(q->lock, flags);
+                spinlock_t *lock = &current->sighand->siglock;
+                read_lock(&tasklist_lock);
+                spin_lock_irqsave(lock, flags);
                 if (!list_empty(&q->list))
                         list_del_init(&q->list);
-                spin_unlock_irqrestore(q->lock, flags);
+                spin_unlock_irqrestore(lock, flags);
                 read_unlock(&tasklist_lock);
         }
         q->flags &= ~SIGQUEUE_PREALLOC;
@@ -1414,7 +1391,6 @@ send_sigqueue(int sig, struct sigqueue *q, struct task_struct *p)
                 goto out;
         }
 
-        q->lock = &p->sighand->siglock;
         list_add_tail(&q->list, &p->pending.list);
         sigaddset(&p->pending.signal, sig);
         if (!sigismember(&p->blocked, sig))
@@ -1462,7 +1438,6 @@ send_group_sigqueue(int sig, struct sigqueue *q, struct task_struct *p)
          * We always use the shared queue for process-wide signals,
          * to avoid several races.
          */
-        q->lock = &p->sighand->siglock;
         list_add_tail(&q->list, &p->signal->shared_pending.list);
         sigaddset(&p->signal->shared_pending.signal, sig);
 
@@ -1881,9 +1856,9 @@ relock:
                         /* Let the debugger run.  */
                         ptrace_stop(signr, signr, info);
 
-                        /* We're back.  Did the debugger cancel the sig?  */
+                        /* We're back.  Did the debugger cancel the sig or group_exit? */
                         signr = current->exit_code;
-                        if (signr == 0)
+                        if (signr == 0 || current->signal->flags & SIGNAL_GROUP_EXIT)
                                 continue;
 
                         current->exit_code = 0;
@@ -2285,26 +2260,13 @@ sys_kill(int pid, int sig)
         return kill_something_info(sig, &info, pid);
 }
 
-/**
- *  sys_tgkill - send signal to one specific thread
- *  @tgid: the thread group ID of the thread
- *  @pid: the PID of the thread
- *  @sig: signal to be sent
- *
- *  This syscall also checks the tgid and returns -ESRCH even if the PID
- *  exists but it's not belonging to the target process anymore. This
- *  method solves the problem of threads exiting and PIDs getting reused.
- */
-asmlinkage long sys_tgkill(int tgid, int pid, int sig)
+static int do_tkill(int tgid, int pid, int sig)
 {
-        struct siginfo info;
         int error;
+        struct siginfo info;
         struct task_struct *p;
 
-        /* This is only valid for single tasks */
-        if (pid <= 0 || tgid <= 0)
-                return -EINVAL;
-
+        error = -ESRCH;
         info.si_signo = sig;
         info.si_errno = 0;
         info.si_code = SI_TKILL;
@@ -2313,8 +2275,7 @@ asmlinkage long sys_tgkill(int tgid, int pid, int sig)
 
         read_lock(&tasklist_lock);
         p = find_task_by_pid(pid);
-        error = -ESRCH;
-        if (p && (p->tgid == tgid)) {
+        if (p && (tgid <= 0 || p->tgid == tgid)) {
                 error = check_kill_permission(sig, &info, p);
                 /*
                  * The null signal is a permissions and process existence
@@ -2328,47 +2289,40 @@ asmlinkage long sys_tgkill(int tgid, int pid, int sig)
                 }
         }
         read_unlock(&tasklist_lock);
+
         return error;
 }
 
+/**
+ *  sys_tgkill - send signal to one specific thread
+ *  @tgid: the thread group ID of the thread
+ *  @pid: the PID of the thread
+ *  @sig: signal to be sent
+ *
+ *  This syscall also checks the tgid and returns -ESRCH even if the PID
+ *  exists but it's not belonging to the target process anymore. This
+ *  method solves the problem of threads exiting and PIDs getting reused.
+ */
+asmlinkage long sys_tgkill(int tgid, int pid, int sig)
+{
+        /* This is only valid for single tasks */
+        if (pid <= 0 || tgid <= 0)
+                return -EINVAL;
+
+        return do_tkill(tgid, pid, sig);
+}
+
 /*
  *  Send a signal to only one task, even if it's a CLONE_THREAD task.
  */
 asmlinkage long
 sys_tkill(int pid, int sig)
 {
-        struct siginfo info;
-        int error;
-        struct task_struct *p;
-
         /* This is only valid for single tasks */
         if (pid <= 0)
                 return -EINVAL;
 
-        info.si_signo = sig;
-        info.si_errno = 0;
-        info.si_code = SI_TKILL;
-        info.si_pid = current->tgid;
-        info.si_uid = current->uid;
-
-        read_lock(&tasklist_lock);
-        p = find_task_by_pid(pid);
-        error = -ESRCH;
-        if (p) {
-                error = check_kill_permission(sig, &info, p);
-                /*
-                 * The null signal is a permissions and process existence
-                 * probe.  No signal is actually delivered.
-                 */
-                if (!error && sig && p->sighand) {
-                        spin_lock_irq(&p->sighand->siglock);
-                        handle_stop_signal(sig, p);
-                        error = specific_send_sig_info(sig, &info, p);
-                        spin_unlock_irq(&p->sighand->siglock);
-                }
-        }
-        read_unlock(&tasklist_lock);
-        return error;
+        return do_tkill(0, pid, sig);
 }
 
 asmlinkage long
diff --git a/kernel/time.c b/kernel/time.c
index a3c2100470e1..245d595a13cb 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -338,30 +338,20 @@ int do_adjtimex(struct timex *txc)
                         if (mtemp >= MINSEC) {
                             ltemp = (time_offset / mtemp) << (SHIFT_USEC -
                                                               SHIFT_UPDATE);
-                            if (ltemp < 0)
-                                time_freq -= -ltemp >> SHIFT_KH;
-                            else
-                                time_freq += ltemp >> SHIFT_KH;
+                            time_freq += shift_right(ltemp, SHIFT_KH);
                         } else /* calibration interval too short (p. 12) */
                                 result = TIME_ERROR;
                     } else {    /* PLL mode */
                         if (mtemp < MAXSEC) {
                             ltemp *= mtemp;
-                            if (ltemp < 0)
-                                time_freq -= -ltemp >> (time_constant +
-                                                        time_constant +
-                                                        SHIFT_KF - SHIFT_USEC);
-                            else
-                                time_freq += ltemp >> (time_constant +
+                            time_freq += shift_right(ltemp,(time_constant +
                                                        time_constant +
-                                                       SHIFT_KF - SHIFT_USEC);
+                                                       SHIFT_KF - SHIFT_USEC));
                         } else /* calibration interval too long (p. 12) */
                                 result = TIME_ERROR;
                     }
-                    if (time_freq > time_tolerance)
-                        time_freq = time_tolerance;
-                    else if (time_freq < -time_tolerance)
-                        time_freq = -time_tolerance;
+                    time_freq = min(time_freq, time_tolerance);
+                    time_freq = max(time_freq, -time_tolerance);
                 } /* STA_PLL || STA_PPSTIME */
             } /* txc->modes & ADJ_OFFSET */
             if (txc->modes & ADJ_TICK) {
@@ -384,10 +374,7 @@ leave:	if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0
         if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
             txc->offset    = save_adjust;
         else {
-            if (time_offset < 0)
-                txc->offset = -(-time_offset >> SHIFT_UPDATE);
-            else
-                txc->offset = time_offset >> SHIFT_UPDATE;
+            txc->offset = shift_right(time_offset, SHIFT_UPDATE);
         }
         txc->freq          = time_freq + pps_freq;
         txc->maxerror      = time_maxerror;
diff --git a/kernel/timer.c b/kernel/timer.c
index 6a2e5f8dc725..fd74268d8663 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -46,6 +46,10 @@ static void time_interpolator_update(long delta_nsec);
 #define time_interpolator_update(x)
 #endif
 
+u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
+
+EXPORT_SYMBOL(jiffies_64);
+
 /*
  * per-CPU timer vector definitions:
  */
@@ -91,30 +95,6 @@ static inline void set_running_timer(tvec_base_t *base,
 #endif
 }
 
-static void check_timer_failed(struct timer_list *timer)
-{
-        static int whine_count;
-        if (whine_count < 16) {
-                whine_count++;
-                printk("Uninitialised timer!\n");
-                printk("This is just a warning.  Your computer is OK\n");
-                printk("function=0x%p, data=0x%lx\n",
-                        timer->function, timer->data);
-                dump_stack();
-        }
-        /*
-         * Now fix it up
-         */
-        timer->magic = TIMER_MAGIC;
-}
-
-static inline void check_timer(struct timer_list *timer)
-{
-        if (timer->magic != TIMER_MAGIC)
-                check_timer_failed(timer);
-}
-
-
 static void internal_add_timer(tvec_base_t *base, struct timer_list *timer)
 {
         unsigned long expires = timer->expires;
@@ -177,7 +157,6 @@ void fastcall init_timer(struct timer_list *timer)
 {
         timer->entry.next = NULL;
         timer->base = &per_cpu(tvec_bases, raw_smp_processor_id()).t_base;
-        timer->magic = TIMER_MAGIC;
 }
 EXPORT_SYMBOL(init_timer);
 
@@ -230,7 +209,6 @@ int __mod_timer(struct timer_list *timer, unsigned long expires)
         int ret = 0;
 
         BUG_ON(!timer->function);
-        check_timer(timer);
 
         base = lock_timer_base(timer, &flags);
 
@@ -283,9 +261,6 @@ void add_timer_on(struct timer_list *timer, int cpu)
         unsigned long flags;
 
         BUG_ON(timer_pending(timer) || !timer->function);
-
-        check_timer(timer);
-
         spin_lock_irqsave(&base->t_base.lock, flags);
         timer->base = &base->t_base;
         internal_add_timer(base, timer);
@@ -316,8 +291,6 @@ int mod_timer(struct timer_list *timer, unsigned long expires)
 {
         BUG_ON(!timer->function);
 
-        check_timer(timer);
-
         /*
          * This is a common optimization triggered by the
          * networking code - if the timer is re-modified
@@ -348,8 +321,6 @@ int del_timer(struct timer_list *timer)
         unsigned long flags;
         int ret = 0;
 
-        check_timer(timer);
-
         if (timer_pending(timer)) {
                 base = lock_timer_base(timer, &flags);
                 if (timer_pending(timer)) {
@@ -412,8 +383,6 @@ out:
  */
 int del_timer_sync(struct timer_list *timer)
 {
-        check_timer(timer);
-
         for (;;) {
                 int ret = try_to_del_timer_sync(timer);
                 if (ret >= 0)
@@ -632,143 +601,118 @@ long time_next_adjust;
  */
 static void second_overflow(void)
 {
-    long ltemp;
-
-    /* Bump the maxerror field */
-    time_maxerror += time_tolerance >> SHIFT_USEC;
-    if ( time_maxerror > NTP_PHASE_LIMIT ) {
-        time_maxerror = NTP_PHASE_LIMIT;
-        time_status |= STA_UNSYNC;
-    }
-
-    /*
-     * Leap second processing. If in leap-insert state at
-     * the end of the day, the system clock is set back one
-     * second; if in leap-delete state, the system clock is
-     * set ahead one second. The microtime() routine or
-     * external clock driver will insure that reported time
-     * is always monotonic. The ugly divides should be
-     * replaced.
-     */
-    switch (time_state) {
-
-    case TIME_OK:
-        if (time_status & STA_INS)
-            time_state = TIME_INS;
-        else if (time_status & STA_DEL)
-            time_state = TIME_DEL;
-        break;
-
-    case TIME_INS:
-        if (xtime.tv_sec % 86400 == 0) {
-            xtime.tv_sec--;
-            wall_to_monotonic.tv_sec++;
-            /* The timer interpolator will make time change gradually instead
-             * of an immediate jump by one second.
-             */
-            time_interpolator_update(-NSEC_PER_SEC);
-            time_state = TIME_OOP;
-            clock_was_set();
-            printk(KERN_NOTICE "Clock: inserting leap second 23:59:60 UTC\n");
+        long ltemp;
+
+        /* Bump the maxerror field */
+        time_maxerror += time_tolerance >> SHIFT_USEC;
+        if (time_maxerror > NTP_PHASE_LIMIT) {
+                time_maxerror = NTP_PHASE_LIMIT;
+                time_status |= STA_UNSYNC;
         }
-        break;
-
-    case TIME_DEL:
-        if ((xtime.tv_sec + 1) % 86400 == 0) {
-            xtime.tv_sec++;
-            wall_to_monotonic.tv_sec--;
-            /* Use of time interpolator for a gradual change of time */
-            time_interpolator_update(NSEC_PER_SEC);
-            time_state = TIME_WAIT;
-            clock_was_set();
-            printk(KERN_NOTICE "Clock: deleting leap second 23:59:59 UTC\n");
+
+        /*
+         * Leap second processing. If in leap-insert state at the end of the
+         * day, the system clock is set back one second; if in leap-delete
+         * state, the system clock is set ahead one second. The microtime()
+         * routine or external clock driver will insure that reported time is
+         * always monotonic. The ugly divides should be replaced.
+         */
+        switch (time_state) {
+        case TIME_OK:
+                if (time_status & STA_INS)
+                        time_state = TIME_INS;
+                else if (time_status & STA_DEL)
+                        time_state = TIME_DEL;
+                break;
+        case TIME_INS:
+                if (xtime.tv_sec % 86400 == 0) {
+                        xtime.tv_sec--;
+                        wall_to_monotonic.tv_sec++;
+                        /*
+                         * The timer interpolator will make time change
+                         * gradually instead of an immediate jump by one second
+                         */
+                        time_interpolator_update(-NSEC_PER_SEC);
+                        time_state = TIME_OOP;
+                        clock_was_set();
+                        printk(KERN_NOTICE "Clock: inserting leap second "
+                                        "23:59:60 UTC\n");
+                }
+                break;
+        case TIME_DEL:
+                if ((xtime.tv_sec + 1) % 86400 == 0) {
+                        xtime.tv_sec++;
+                        wall_to_monotonic.tv_sec--;
+                        /*
+                         * Use of time interpolator for a gradual change of
+                         * time
+                         */
+                        time_interpolator_update(NSEC_PER_SEC);
+                        time_state = TIME_WAIT;
+                        clock_was_set();
+                        printk(KERN_NOTICE "Clock: deleting leap second "
+                                        "23:59:59 UTC\n");
+                }
+                break;
+        case TIME_OOP:
+                time_state = TIME_WAIT;
+                break;
+        case TIME_WAIT:
+                if (!(time_status & (STA_INS | STA_DEL)))
+                time_state = TIME_OK;
         }
-        break;
-
-    case TIME_OOP:
-        time_state = TIME_WAIT;
-        break;
-
-    case TIME_WAIT:
-        if (!(time_status & (STA_INS | STA_DEL)))
-            time_state = TIME_OK;
-    }
-
-    /*
-     * Compute the phase adjustment for the next second. In
-     * PLL mode, the offset is reduced by a fixed factor
-     * times the time constant. In FLL mode the offset is
-     * used directly. In either mode, the maximum phase
-     * adjustment for each second is clamped so as to spread
-     * the adjustment over not more than the number of
-     * seconds between updates.
-     */
-    if (time_offset < 0) {
-        ltemp = -time_offset;
-        if (!(time_status & STA_FLL))
-            ltemp >>= SHIFT_KG + time_constant;
-        if (ltemp > (MAXPHASE / MINSEC) << SHIFT_UPDATE)
-            ltemp = (MAXPHASE / MINSEC) << SHIFT_UPDATE;
-        time_offset += ltemp;
-        time_adj = -ltemp << (SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE);
-    } else {
+
+        /*
+         * Compute the phase adjustment for the next second. In PLL mode, the
+         * offset is reduced by a fixed factor times the time constant. In FLL
+         * mode the offset is used directly. In either mode, the maximum phase
+         * adjustment for each second is clamped so as to spread the adjustment
+         * over not more than the number of seconds between updates.
+         */
         ltemp = time_offset;
         if (!(time_status & STA_FLL))
-            ltemp >>= SHIFT_KG + time_constant;
-        if (ltemp > (MAXPHASE / MINSEC) << SHIFT_UPDATE)
-            ltemp = (MAXPHASE / MINSEC) << SHIFT_UPDATE;
+                ltemp = shift_right(ltemp, SHIFT_KG + time_constant);
+        ltemp = min(ltemp, (MAXPHASE / MINSEC) << SHIFT_UPDATE);
+        ltemp = max(ltemp, -(MAXPHASE / MINSEC) << SHIFT_UPDATE);
         time_offset -= ltemp;
         time_adj = ltemp << (SHIFT_SCALE - SHIFT_HZ - SHIFT_UPDATE);
-    }
-
-    /*
-     * Compute the frequency estimate and additional phase
-     * adjustment due to frequency error for the next
-     * second. When the PPS signal is engaged, gnaw on the
-     * watchdog counter and update the frequency computed by
-     * the pll and the PPS signal.
-     */
-    pps_valid++;
-    if (pps_valid == PPS_VALID) {       /* PPS signal lost */
-        pps_jitter = MAXTIME;
-        pps_stabil = MAXFREQ;
-        time_status &= ~(STA_PPSSIGNAL | STA_PPSJITTER |
-                         STA_PPSWANDER | STA_PPSERROR);
-    }
-    ltemp = time_freq + pps_freq;
-    if (ltemp < 0)
-        time_adj -= -ltemp >>
-            (SHIFT_USEC + SHIFT_HZ - SHIFT_SCALE);
-    else
-        time_adj += ltemp >>
-            (SHIFT_USEC + SHIFT_HZ - SHIFT_SCALE);
+
+        /*
+         * Compute the frequency estimate and additional phase adjustment due
+         * to frequency error for the next second. When the PPS signal is
+         * engaged, gnaw on the watchdog counter and update the frequency
+         * computed by the pll and the PPS signal.
+         */
+        pps_valid++;
+        if (pps_valid == PPS_VALID) {   /* PPS signal lost */
+                pps_jitter = MAXTIME;
+                pps_stabil = MAXFREQ;
+                time_status &= ~(STA_PPSSIGNAL | STA_PPSJITTER |
+                                STA_PPSWANDER | STA_PPSERROR);
+        }
+        ltemp = time_freq + pps_freq;
+        time_adj += shift_right(ltemp,(SHIFT_USEC + SHIFT_HZ - SHIFT_SCALE));
 
 #if HZ == 100
-    /* Compensate for (HZ==100) != (1 << SHIFT_HZ).
-     * Add 25% and 3.125% to get 128.125; => only 0.125% error (p. 14)
-     */
-    if (time_adj < 0)
-        time_adj -= (-time_adj >> 2) + (-time_adj >> 5);
-    else
-        time_adj += (time_adj >> 2) + (time_adj >> 5);
+        /*
+         * Compensate for (HZ==100) != (1 << SHIFT_HZ).  Add 25% and 3.125% to
+         * get 128.125; => only 0.125% error (p. 14)
+         */
+        time_adj += shift_right(time_adj, 2) + shift_right(time_adj, 5);
 #endif
 #if HZ == 250
-    /* Compensate for (HZ==250) != (1 << SHIFT_HZ).
-     * Add 1.5625% and 0.78125% to get 255.85938; => only 0.05% error (p. 14)
-     */
-    if (time_adj < 0)
-        time_adj -= (-time_adj >> 6) + (-time_adj >> 7);
-    else
-        time_adj += (time_adj >> 6) + (time_adj >> 7);
+        /*
+         * Compensate for (HZ==250) != (1 << SHIFT_HZ).  Add 1.5625% and
+         * 0.78125% to get 255.85938; => only 0.05% error (p. 14)
+         */
+        time_adj += shift_right(time_adj, 6) + shift_right(time_adj, 7);
 #endif
 #if HZ == 1000
-    /* Compensate for (HZ==1000) != (1 << SHIFT_HZ).
-     * Add 1.5625% and 0.78125% to get 1023.4375; => only 0.05% error (p. 14)
-     */
-    if (time_adj < 0)
-        time_adj -= (-time_adj >> 6) + (-time_adj >> 7);
-    else
-        time_adj += (time_adj >> 6) + (time_adj >> 7);
+        /*
+         * Compensate for (HZ==1000) != (1 << SHIFT_HZ).  Add 1.5625% and
+         * 0.78125% to get 1023.4375; => only 0.05% error (p. 14)
+         */
+        time_adj += shift_right(time_adj, 6) + shift_right(time_adj, 7);
 #endif
 }
 
@@ -777,23 +721,20 @@ static void update_wall_time_one_tick(void)
 {
         long time_adjust_step, delta_nsec;
 
-        if ( (time_adjust_step = time_adjust) != 0 ) {
-            /* We are doing an adjtime thing. 
-             *
-             * Prepare time_adjust_step to be within bounds.
-             * Note that a positive time_adjust means we want the clock
-             * to run faster.
-             *
-             * Limit the amount of the step to be in the range
-             * -tickadj .. +tickadj
-             */
-             if (time_adjust > tickadj)
-                time_adjust_step = tickadj;
-             else if (time_adjust < -tickadj)
-                time_adjust_step = -tickadj;
-
-            /* Reduce by this step the amount of time left  */
-            time_adjust -= time_adjust_step;
+        if ((time_adjust_step = time_adjust) != 0 ) {
+                /*
+                 * We are doing an adjtime thing.  Prepare time_adjust_step to
+                 * be within bounds.  Note that a positive time_adjust means we
+                 * want the clock to run faster.
+                 *
+                 * Limit the amount of the step to be in the range
+                 * -tickadj .. +tickadj
+                 */
+                time_adjust_step = min(time_adjust_step, (long)tickadj);
+                time_adjust_step = max(time_adjust_step, (long)-tickadj);
+
+                /* Reduce by this step the amount of time left  */
+                time_adjust -= time_adjust_step;
         }
         delta_nsec = tick_nsec + time_adjust_step * 1000;
         /*
@@ -801,13 +742,8 @@ static void update_wall_time_one_tick(void)
          * advance the tick more.
          */
         time_phase += time_adj;
-        if (time_phase <= -FINENSEC) {
-                long ltemp = -time_phase >> (SHIFT_SCALE - 10);
-                time_phase += ltemp << (SHIFT_SCALE - 10);
-                delta_nsec -= ltemp;
-        }
-        else if (time_phase >= FINENSEC) {
-                long ltemp = time_phase >> (SHIFT_SCALE - 10);
+        if ((time_phase >= FINENSEC) || (time_phase <= -FINENSEC)) {
+                long ltemp = shift_right(time_phase, (SHIFT_SCALE - 10));
                 time_phase -= ltemp << (SHIFT_SCALE - 10);
                 delta_nsec += ltemp;
         }
@@ -1137,8 +1073,8 @@ fastcall signed long __sched schedule_timeout(signed long timeout)
                 if (timeout < 0)
                 {
                         printk(KERN_ERR "schedule_timeout: wrong timeout "
-                               "value %lx from %p\n", timeout,
-                               __builtin_return_address(0));
+                                "value %lx from %p\n", timeout,
+                                __builtin_return_address(0));
                         current->state = TASK_RUNNING;
                         goto out;
                 }
@@ -1146,12 +1082,8 @@ fastcall signed long __sched schedule_timeout(signed long timeout)
 
         expire = timeout + jiffies;
 
-        init_timer(&timer);
-        timer.expires = expire;
-        timer.data = (unsigned long) current;
-        timer.function = process_timeout;
-
-        add_timer(&timer);
+        setup_timer(&timer, process_timeout, (unsigned long)current);
+        __mod_timer(&timer, expire);
         schedule();
         del_singleshot_timer_sync(&timer);
 
@@ -1168,15 +1100,15 @@ EXPORT_SYMBOL(schedule_timeout);
  */
 signed long __sched schedule_timeout_interruptible(signed long timeout)
 {
-       __set_current_state(TASK_INTERRUPTIBLE);
-       return schedule_timeout(timeout);
+        __set_current_state(TASK_INTERRUPTIBLE);
+        return schedule_timeout(timeout);
 }
 EXPORT_SYMBOL(schedule_timeout_interruptible);
 
 signed long __sched schedule_timeout_uninterruptible(signed long timeout)
 {
-       __set_current_state(TASK_UNINTERRUPTIBLE);
-       return schedule_timeout(timeout);
+        __set_current_state(TASK_UNINTERRUPTIBLE);
+        return schedule_timeout(timeout);
 }
 EXPORT_SYMBOL(schedule_timeout_uninterruptible);
 
@@ -1516,16 +1448,18 @@ static void time_interpolator_update(long delta_nsec)
         if (!time_interpolator)
                 return;
 
-        /* The interpolator compensates for late ticks by accumulating
-         * the late time in time_interpolator->offset. A tick earlier than
-         * expected will lead to a reset of the offset and a corresponding
-         * jump of the clock forward. Again this only works if the
-         * interpolator clock is running slightly slower than the regular clock
-         * and the tuning logic insures that.
-         */
+        /*
+         * The interpolator compensates for late ticks by accumulating the late
+         * time in time_interpolator->offset. A tick earlier than expected will
+         * lead to a reset of the offset and a corresponding jump of the clock
+         * forward. Again this only works if the interpolator clock is running
+         * slightly slower than the regular clock and the tuning logic insures
+         * that.
+         */
 
         counter = time_interpolator_get_counter(1);
-        offset = time_interpolator->offset + GET_TI_NSECS(counter, time_interpolator);
+        offset = time_interpolator->offset +
+                        GET_TI_NSECS(counter, time_interpolator);
 
         if (delta_nsec < 0 || (unsigned long) delta_nsec < offset)
                 time_interpolator->offset = offset - delta_nsec;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 91bacb13a7e2..7cee222231bc 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -12,6 +12,8 @@
  *   Andrew Morton <andrewm@uow.edu.au>
  *   Kai Petzke <wpp@marie.physik.tu-berlin.de>
  *   Theodore Ts'o <tytso@mit.edu>
+ *
+ * Made to use alloc_percpu by Christoph Lameter <clameter@sgi.com>.
  */
 
 #include <linux/module.h>
@@ -57,7 +59,7 @@ struct cpu_workqueue_struct {
  * per-CPU workqueues:
  */
 struct workqueue_struct {
-        struct cpu_workqueue_struct cpu_wq[NR_CPUS];
+        struct cpu_workqueue_struct *cpu_wq;
         const char *name;
         struct list_head list;  /* Empty if single thread */
 };
@@ -102,7 +104,7 @@ int fastcall queue_work(struct workqueue_struct *wq, struct work_struct *work)
                 if (unlikely(is_single_threaded(wq)))
                         cpu = 0;
                 BUG_ON(!list_empty(&work->entry));
-                __queue_work(wq->cpu_wq + cpu, work);
+                __queue_work(per_cpu_ptr(wq->cpu_wq, cpu), work);
                 ret = 1;
         }
         put_cpu();
@@ -118,7 +120,7 @@ static void delayed_work_timer_fn(unsigned long __data)
         if (unlikely(is_single_threaded(wq)))
                 cpu = 0;
 
-        __queue_work(wq->cpu_wq + cpu, work);
+        __queue_work(per_cpu_ptr(wq->cpu_wq, cpu), work);
 }
 
 int fastcall queue_delayed_work(struct workqueue_struct *wq,
@@ -265,13 +267,13 @@ void fastcall flush_workqueue(struct workqueue_struct *wq)
 
         if (is_single_threaded(wq)) {
                 /* Always use cpu 0's area. */
-                flush_cpu_workqueue(wq->cpu_wq + 0);
+                flush_cpu_workqueue(per_cpu_ptr(wq->cpu_wq, 0));
         } else {
                 int cpu;
 
                 lock_cpu_hotplug();
                 for_each_online_cpu(cpu)
-                        flush_cpu_workqueue(wq->cpu_wq + cpu);
+                        flush_cpu_workqueue(per_cpu_ptr(wq->cpu_wq, cpu));
                 unlock_cpu_hotplug();
         }
 }
@@ -279,7 +281,7 @@ void fastcall flush_workqueue(struct workqueue_struct *wq)
 static struct task_struct *create_workqueue_thread(struct workqueue_struct *wq,
                                                    int cpu)
 {
-        struct cpu_workqueue_struct *cwq = wq->cpu_wq + cpu;
+        struct cpu_workqueue_struct *cwq = per_cpu_ptr(wq->cpu_wq, cpu);
         struct task_struct *p;
 
         spin_lock_init(&cwq->lock);
@@ -312,6 +314,7 @@ struct workqueue_struct *__create_workqueue(const char *name,
         if (!wq)
                 return NULL;
 
+        wq->cpu_wq = alloc_percpu(struct cpu_workqueue_struct);
         wq->name = name;
         /* We don't need the distraction of CPUs appearing and vanishing. */
         lock_cpu_hotplug();
@@ -353,7 +356,7 @@ static void cleanup_workqueue_thread(struct workqueue_struct *wq, int cpu)
         unsigned long flags;
         struct task_struct *p;
 
-        cwq = wq->cpu_wq + cpu;
+        cwq = per_cpu_ptr(wq->cpu_wq, cpu);
         spin_lock_irqsave(&cwq->lock, flags);
         p = cwq->thread;
         cwq->thread = NULL;
@@ -380,6 +383,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
                 spin_unlock(&workqueue_lock);
         }
         unlock_cpu_hotplug();
+        free_percpu(wq->cpu_wq);
         kfree(wq);
 }
 
@@ -458,7 +462,7 @@ int current_is_keventd(void)
 
         BUG_ON(!keventd_wq);
 
-        cwq = keventd_wq->cpu_wq + cpu;
+        cwq = per_cpu_ptr(keventd_wq->cpu_wq, cpu);
         if (current == cwq->thread)
                 ret = 1;
 
@@ -470,7 +474,7 @@ int current_is_keventd(void)
 /* Take the work from this (downed) CPU. */
 static void take_over_work(struct workqueue_struct *wq, unsigned int cpu)
 {
-        struct cpu_workqueue_struct *cwq = wq->cpu_wq + cpu;
+        struct cpu_workqueue_struct *cwq = per_cpu_ptr(wq->cpu_wq, cpu);
         LIST_HEAD(list);
         struct work_struct *work;
 
@@ -481,7 +485,7 @@ static void take_over_work(struct workqueue_struct *wq, unsigned int cpu)
                 printk("Taking work for %s\n", wq->name);
                 work = list_entry(list.next,struct work_struct,entry);
                 list_del(&work->entry);
-                __queue_work(wq->cpu_wq + smp_processor_id(), work);
+                __queue_work(per_cpu_ptr(wq->cpu_wq, smp_processor_id()), work);
         }
         spin_unlock_irq(&cwq->lock);
 }
@@ -508,15 +512,18 @@ static int __devinit workqueue_cpu_callback(struct notifier_block *nfb,
         case CPU_ONLINE:
                 /* Kick off worker threads. */
                 list_for_each_entry(wq, &workqueues, list) {
-                        kthread_bind(wq->cpu_wq[hotcpu].thread, hotcpu);
-                        wake_up_process(wq->cpu_wq[hotcpu].thread);
+                        struct cpu_workqueue_struct *cwq;
+
+                        cwq = per_cpu_ptr(wq->cpu_wq, hotcpu);
+                        kthread_bind(cwq->thread, hotcpu);
+                        wake_up_process(cwq->thread);
                 }
                 break;
 
         case CPU_UP_CANCELED:
                 list_for_each_entry(wq, &workqueues, list) {
                         /* Unbind so it can run. */
-                        kthread_bind(wq->cpu_wq[hotcpu].thread,
+                        kthread_bind(per_cpu_ptr(wq->cpu_wq, hotcpu)->thread,
                                      smp_processor_id());
                         cleanup_workqueue_thread(wq, hotcpu);
                 }
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 016e89a44ac8..156822e3cc79 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -128,7 +128,7 @@ config DEBUG_HIGHMEM
 config DEBUG_BUGVERBOSE
         bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
         depends on BUG
-        depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || (X86 && !X86_64) || FRV
+        depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV
         default !EMBEDDED
         help
           Say Y here to make BUG() panics output the file name and line number
@@ -168,13 +168,34 @@ config DEBUG_FS
 
           If unsure, say N.
 
+config DEBUG_VM
+        bool "Debug VM"
+        depends on DEBUG_KERNEL
+        help
+          Enable this to debug the virtual-memory system.
+
+          If unsure, say N.
+
 config FRAME_POINTER
         bool "Compile the kernel with frame pointers"
         depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML)
         default y if DEBUG_INFO && UML
         help
           If you say Y here the resulting kernel image will be slightly larger
-          and slower, but it might give very useful debugging information
-          on some architectures or you use external debuggers.
+          and slower, but it might give very useful debugging information on
+          some architectures or if you use external debuggers.
           If you don't debug the kernel, you can say N.
 
+config RCU_TORTURE_TEST
+        tristate "torture tests for RCU"
+        depends on DEBUG_KERNEL
+        default n
+        help
+          This option provides a kernel module that runs torture tests
+          on the RCU infrastructure.  The kernel module may be built
+          after the fact on the running kernel to be tested, if desired.
+
+          Say Y here if you want RCU torture tests to start automatically
+          at boot time (you probably don't).
+          Say M if you want the RCU torture tests to build as a module.
+          Say N if you are unsure.
diff --git a/lib/bitmap.c b/lib/bitmap.c
index fb9371fdd44a..23d3b1147fe9 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -511,6 +511,172 @@ int bitmap_parselist(const char *bp, unsigned long *maskp, int nmaskbits)
 }
 EXPORT_SYMBOL(bitmap_parselist);
 
+/*
+ * bitmap_pos_to_ord(buf, pos, bits)
+ *      @buf: pointer to a bitmap
+ *      @pos: a bit position in @buf (0 <= @pos < @bits)
+ *      @bits: number of valid bit positions in @buf
+ *
+ * Map the bit at position @pos in @buf (of length @bits) to the
+ * ordinal of which set bit it is.  If it is not set or if @pos
+ * is not a valid bit position, map to zero (0).
+ *
+ * If for example, just bits 4 through 7 are set in @buf, then @pos
+ * values 4 through 7 will get mapped to 0 through 3, respectively,
+ * and other @pos values will get mapped to 0.  When @pos value 7
+ * gets mapped to (returns) @ord value 3 in this example, that means
+ * that bit 7 is the 3rd (starting with 0th) set bit in @buf.
+ *
+ * The bit positions 0 through @bits are valid positions in @buf.
+ */
+static int bitmap_pos_to_ord(const unsigned long *buf, int pos, int bits)
+{
+        int ord = 0;
+
+        if (pos >= 0 && pos < bits) {
+                int i;
+
+                for (i = find_first_bit(buf, bits);
+                     i < pos;
+                     i = find_next_bit(buf, bits, i + 1))
+                        ord++;
+                if (i > pos)
+                        ord = 0;
+        }
+        return ord;
+}
+
+/**
+ * bitmap_ord_to_pos(buf, ord, bits)
+ *      @buf: pointer to bitmap
+ *      @ord: ordinal bit position (n-th set bit, n >= 0)
+ *      @bits: number of valid bit positions in @buf
+ *
+ * Map the ordinal offset of bit @ord in @buf to its position in @buf.
+ * If @ord is not the ordinal offset of a set bit in @buf, map to zero (0).
+ *
+ * If for example, just bits 4 through 7 are set in @buf, then @ord
+ * values 0 through 3 will get mapped to 4 through 7, respectively,
+ * and all other @ord valuds will get mapped to 0.  When @ord value 3
+ * gets mapped to (returns) @pos value 7 in this example, that means
+ * that the 3rd set bit (starting with 0th) is at position 7 in @buf.
+ *
+ * The bit positions 0 through @bits are valid positions in @buf.
+ */
+static int bitmap_ord_to_pos(const unsigned long *buf, int ord, int bits)
+{
+        int pos = 0;
+
+        if (ord >= 0 && ord < bits) {
+                int i;
+
+                for (i = find_first_bit(buf, bits);
+                     i < bits && ord > 0;
+                     i = find_next_bit(buf, bits, i + 1))
+                        ord--;
+                if (i < bits && ord == 0)
+                        pos = i;
+        }
+
+        return pos;
+}
+
+/**
+ * bitmap_remap - Apply map defined by a pair of bitmaps to another bitmap
+ *      @src: subset to be remapped
+ *      @dst: remapped result
+ *      @old: defines domain of map
+ *      @new: defines range of map
+ *      @bits: number of bits in each of these bitmaps
+ *
+ * Let @old and @new define a mapping of bit positions, such that
+ * whatever position is held by the n-th set bit in @old is mapped
+ * to the n-th set bit in @new.  In the more general case, allowing
+ * for the possibility that the weight 'w' of @new is less than the
+ * weight of @old, map the position of the n-th set bit in @old to
+ * the position of the m-th set bit in @new, where m == n % w.
+ *
+ * If either of the @old and @new bitmaps are empty, or if@src and @dst
+ * point to the same location, then this routine does nothing.
+ *
+ * The positions of unset bits in @old are mapped to the position of
+ * the first set bit in @new.
+ *
+ * Apply the above specified mapping to @src, placing the result in
+ * @dst, clearing any bits previously set in @dst.
+ *
+ * The resulting value of @dst will have either the same weight as
+ * @src, or less weight in the general case that the mapping wasn't
+ * injective due to the weight of @new being less than that of @old.
+ * The resulting value of @dst will never have greater weight than
+ * that of @src, except perhaps in the case that one of the above
+ * conditions was not met and this routine just returned.
+ *
+ * For example, lets say that @old has bits 4 through 7 set, and
+ * @new has bits 12 through 15 set.  This defines the mapping of bit
+ * position 4 to 12, 5 to 13, 6 to 14 and 7 to 15, and of all other
+ * bit positions to 12 (the first set bit in @new.  So if say @src
+ * comes into this routine with bits 1, 5 and 7 set, then @dst should
+ * leave with bits 12, 13 and 15 set.
+ */
+void bitmap_remap(unsigned long *dst, const unsigned long *src,
+                const unsigned long *old, const unsigned long *new,
+                int bits)
+{
+        int s;
+
+        if (bitmap_weight(old, bits) == 0)
+                return;
+        if (bitmap_weight(new, bits) == 0)
+                return;
+        if (dst == src)         /* following doesn't handle inplace remaps */
+                return;
+
+        bitmap_zero(dst, bits);
+        for (s = find_first_bit(src, bits);
+             s < bits;
+             s = find_next_bit(src, bits, s + 1)) {
+                int x = bitmap_pos_to_ord(old, s, bits);
+                int y = bitmap_ord_to_pos(new, x, bits);
+                set_bit(y, dst);
+        }
+}
+EXPORT_SYMBOL(bitmap_remap);
+
+/**
+ * bitmap_bitremap - Apply map defined by a pair of bitmaps to a single bit
+ *      @oldbit - bit position to be mapped
+ *      @old: defines domain of map
+ *      @new: defines range of map
+ *      @bits: number of bits in each of these bitmaps
+ *
+ * Let @old and @new define a mapping of bit positions, such that
+ * whatever position is held by the n-th set bit in @old is mapped
+ * to the n-th set bit in @new.  In the more general case, allowing
+ * for the possibility that the weight 'w' of @new is less than the
+ * weight of @old, map the position of the n-th set bit in @old to
+ * the position of the m-th set bit in @new, where m == n % w.
+ *
+ * The positions of unset bits in @old are mapped to the position of
+ * the first set bit in @new.
+ *
+ * Apply the above specified mapping to bit position @oldbit, returning
+ * the new bit position.
+ *
+ * For example, lets say that @old has bits 4 through 7 set, and
+ * @new has bits 12 through 15 set.  This defines the mapping of bit
+ * position 4 to 12, 5 to 13, 6 to 14 and 7 to 15, and of all other
+ * bit positions to 12 (the first set bit in @new.  So if say @oldbit
+ * is 5, then this routine returns 13.
+ */
+int bitmap_bitremap(int oldbit, const unsigned long *old,
+                                const unsigned long *new, int bits)
+{
+        int x = bitmap_pos_to_ord(old, oldbit, bits);
+        return bitmap_ord_to_pos(new, x, bits);
+}
+EXPORT_SYMBOL(bitmap_bitremap);
+
 /**
  *      bitmap_find_free_region - find a contiguous aligned mem region
  *      @bitmap: an array of unsigned longs corresponding to the bitmap
diff --git a/lib/extable.c b/lib/extable.c
index 3f677a8f0c3c..18df57c029df 100644
--- a/lib/extable.c
+++ b/lib/extable.c
@@ -16,9 +16,6 @@
 #include <linux/sort.h>
 #include <asm/uaccess.h>
 
-extern struct exception_table_entry __start___ex_table[];
-extern struct exception_table_entry __stop___ex_table[];
-
 #ifndef ARCH_HAS_SORT_EXTABLE
 /*
  * The exception table needs to be sorted so that the binary
diff --git a/lib/idr.c b/lib/idr.c
index 6414b2fb482d..d226259c3c28 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -6,20 +6,20 @@
  * Modified by George Anzinger to reuse immediately and to use
  * find bit instructions.  Also removed _irq on spinlocks.
  *
- * Small id to pointer translation service.  
+ * Small id to pointer translation service.
  *
- * It uses a radix tree like structure as a sparse array indexed 
+ * It uses a radix tree like structure as a sparse array indexed
  * by the id to obtain the pointer.  The bitmap makes allocating
- * a new id quick.  
+ * a new id quick.
  *
  * You call it to allocate an id (an int) an associate with that id a
  * pointer or what ever, we treat it as a (void *).  You can pass this
  * id to a user for him to pass back at a later time.  You then pass
  * that id to this code and it returns your pointer.
 
- * You can release ids at any time. When all ids are released, most of 
+ * You can release ids at any time. When all ids are released, most of
  * the memory is returned (we keep IDR_FREE_MAX) in a local pool so we
- * don't need to go to the memory "store" during an id allocate, just 
+ * don't need to go to the memory "store" during an id allocate, just
  * so you don't need to be too concerned about locking and conflicts
  * with the slab allocator.
  */
@@ -77,7 +77,7 @@ int idr_pre_get(struct idr *idp, gfp_t gfp_mask)
         while (idp->id_free_cnt < IDR_FREE_MAX) {
                 struct idr_layer *new;
                 new = kmem_cache_alloc(idr_layer_cache, gfp_mask);
-                if(new == NULL)
+                if (new == NULL)
                         return (0);
                 free_layer(idp, new);
         }
@@ -107,7 +107,7 @@ static int sub_alloc(struct idr *idp, void *ptr, int *starting_id)
                 if (m == IDR_SIZE) {
                         /* no space available go back to previous layer. */
                         l++;
-                        id = (id | ((1 << (IDR_BITS*l))-1)) + 1;
+                        id = (id | ((1 << (IDR_BITS * l)) - 1)) + 1;
                         if (!(p = pa[l])) {
                                 *starting_id = id;
                                 return -2;
@@ -161,7 +161,7 @@ static int idr_get_new_above_int(struct idr *idp, void *ptr, int starting_id)
 {
         struct idr_layer *p, *new;
         int layers, v, id;
-        
+
         id = starting_id;
 build_up:
         p = idp->top;
@@ -225,6 +225,7 @@ build_up:
 int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id)
 {
         int rv;
+
         rv = idr_get_new_above_int(idp, ptr, starting_id);
         /*
          * This is a cheap hack until the IDR code can be fixed to
@@ -259,6 +260,7 @@ EXPORT_SYMBOL(idr_get_new_above);
 int idr_get_new(struct idr *idp, void *ptr, int *id)
 {
         int rv;
+
         rv = idr_get_new_above_int(idp, ptr, 0);
         /*
          * This is a cheap hack until the IDR code can be fixed to
@@ -306,11 +308,10 @@ static void sub_remove(struct idr *idp, int shift, int id)
                         free_layer(idp, **paa);
                         **paa-- = NULL;
                 }
-                if ( ! *paa )
+                if (!*paa)
                         idp->layers = 0;
-        } else {
+        } else
                 idr_remove_warning(id);
-        }
 }
 
 /**
@@ -326,9 +327,8 @@ void idr_remove(struct idr *idp, int id)
         id &= MAX_ID_MASK;
 
         sub_remove(idp, (idp->layers - 1) * IDR_BITS, id);
-        if ( idp->top && idp->top->count == 1 && 
-             (idp->layers > 1) &&
-             idp->top->ary[0]){  // We can drop a layer
+        if (idp->top && idp->top->count == 1 && (idp->layers > 1) &&
+            idp->top->ary[0]) {  // We can drop a layer
 
                 p = idp->top->ary[0];
                 idp->top->bitmap = idp->top->count = 0;
@@ -337,7 +337,6 @@ void idr_remove(struct idr *idp, int id)
                 --idp->layers;
         }
         while (idp->id_free_cnt >= IDR_FREE_MAX) {
-                
                 p = alloc_layer(idp);
                 kmem_cache_free(idr_layer_cache, p);
                 return;
@@ -391,8 +390,8 @@ void *idr_find(struct idr *idp, int id)
 }
 EXPORT_SYMBOL(idr_find);
 
-static void idr_cache_ctor(void * idr_layer, 
-                           kmem_cache_t *idr_layer_cache, unsigned long flags)
+static void idr_cache_ctor(void * idr_layer, kmem_cache_t *idr_layer_cache,
+                unsigned long flags)
 {
         memset(idr_layer, 0, sizeof(struct idr_layer));
 }
@@ -400,7 +399,7 @@ static void idr_cache_ctor(void * idr_layer,
 static  int init_id_cache(void)
 {
         if (!idr_layer_cache)
-                idr_layer_cache = kmem_cache_create("idr_layer_cache", 
+                idr_layer_cache = kmem_cache_create("idr_layer_cache",
                         sizeof(struct idr_layer), 0, 0, idr_cache_ctor, NULL);
         return 0;
 }
diff --git a/lib/kobject.c b/lib/kobject.c
index 253d3004ace9..a181abed89f6 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <linux/module.h>
 #include <linux/stat.h>
+#include <linux/slab.h>
 
 /**
  *      populate_dir - populate directory with attributes.
diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
index 42c08ef828c5..eddc9b3d3876 100644
--- a/lib/smp_processor_id.c
+++ b/lib/smp_processor_id.c
@@ -5,6 +5,7 @@
  */
 #include <linux/module.h>
 #include <linux/kallsyms.h>
+#include <linux/sched.h>
 
 unsigned int debug_smp_processor_id(void)
 {
diff --git a/lib/sort.c b/lib/sort.c
index ddc4d35df289..5f3b51ffa1dc 100644
--- a/lib/sort.c
+++ b/lib/sort.c
@@ -7,6 +7,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/sort.h>
+#include <linux/slab.h>
 
 static void u32_swap(void *a, void *b, int size)
 {
diff --git a/lib/string.c b/lib/string.c
index d886ef157c12..037a48acedbb 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -36,11 +36,13 @@ int strnicmp(const char *s1, const char *s2, size_t len)
         /* Yes, Virginia, it had better be unsigned */
         unsigned char c1, c2;
 
-        c1 = 0; c2 = 0;
+        c1 = c2 = 0;
         if (len) {
                 do {
-                        c1 = *s1; c2 = *s2;
-                        s1++; s2++;
+                        c1 = *s1;
+                        c2 = *s2;
+                        s1++;
+                        s2++;
                         if (!c1)
                                 break;
                         if (!c2)
@@ -55,7 +57,6 @@ int strnicmp(const char *s1, const char *s2, size_t len)
         }
         return (int)c1 - (int)c2;
 }
-
 EXPORT_SYMBOL(strnicmp);
 #endif
 
@@ -66,7 +67,7 @@ EXPORT_SYMBOL(strnicmp);
  * @src: Where to copy the string from
  */
 #undef strcpy
-char * strcpy(char * dest,const char *src)
+char *strcpy(char *dest, const char *src)
 {
         char *tmp = dest;
 
@@ -91,12 +92,13 @@ EXPORT_SYMBOL(strcpy);
  * count, the remainder of @dest will be padded with %NUL.
  *
  */
-char * strncpy(char * dest,const char *src,size_t count)
+char *strncpy(char *dest, const char *src, size_t count)
 {
         char *tmp = dest;
 
         while (count) {
-                if ((*tmp = *src) != 0) src++;
+                if ((*tmp = *src) != 0)
+                        src++;
                 tmp++;
                 count--;
         }
@@ -122,7 +124,7 @@ size_t strlcpy(char *dest, const char *src, size_t size)
         size_t ret = strlen(src);
 
         if (size) {
-                size_t len = (ret >= size) ? size-1 : ret;
+                size_t len = (ret >= size) ? size - 1 : ret;
                 memcpy(dest, src, len);
                 dest[len] = '\0';
         }
@@ -138,7 +140,7 @@ EXPORT_SYMBOL(strlcpy);
  * @src: The string to append to it
  */
 #undef strcat
-char * strcat(char * dest, const char * src)
+char *strcat(char *dest, const char *src)
 {
         char *tmp = dest;
 
@@ -146,7 +148,6 @@ char * strcat(char * dest, const char * src)
                 dest++;
         while ((*dest++ = *src++) != '\0')
                 ;
-
         return tmp;
 }
 EXPORT_SYMBOL(strcat);
@@ -162,7 +163,7 @@ EXPORT_SYMBOL(strcat);
  * Note that in contrast to strncpy, strncat ensures the result is
  * terminated.
  */
-char * strncat(char *dest, const char *src, size_t count)
+char *strncat(char *dest, const char *src, size_t count)
 {
         char *tmp = dest;
 
@@ -176,7 +177,6 @@ char * strncat(char *dest, const char *src, size_t count)
                         }
                 }
         }
-
         return tmp;
 }
 EXPORT_SYMBOL(strncat);
@@ -216,15 +216,14 @@ EXPORT_SYMBOL(strlcat);
  * @ct: Another string
  */
 #undef strcmp
-int strcmp(const char * cs,const char * ct)
+int strcmp(const char *cs, const char *ct)
 {
-        register signed char __res;
+        signed char __res;
 
         while (1) {
                 if ((__res = *cs - *ct++) != 0 || !*cs++)
                         break;
         }
-
         return __res;
 }
 EXPORT_SYMBOL(strcmp);
@@ -237,16 +236,15 @@ EXPORT_SYMBOL(strcmp);
  * @ct: Another string
  * @count: The maximum number of bytes to compare
  */
-int strncmp(const char * cs,const char * ct,size_t count)
+int strncmp(const char *cs, const char *ct, size_t count)
 {
-        register signed char __res = 0;
+        signed char __res = 0;
 
         while (count) {
                 if ((__res = *cs - *ct++) != 0 || !*cs++)
                         break;
                 count--;
         }
-
         return __res;
 }
 EXPORT_SYMBOL(strncmp);
@@ -258,12 +256,12 @@ EXPORT_SYMBOL(strncmp);
  * @s: The string to be searched
  * @c: The character to search for
  */
-char * strchr(const char * s, int c)
+char *strchr(const char *s, int c)
 {
-        for(; *s != (char) c; ++s)
+        for (; *s != (char)c; ++s)
                 if (*s == '\0')
                         return NULL;
-        return (char *) s;
+        return (char *)s;
 }
 EXPORT_SYMBOL(strchr);
 #endif
@@ -274,7 +272,7 @@ EXPORT_SYMBOL(strchr);
  * @s: The string to be searched
  * @c: The character to search for
  */
-char * strrchr(const char * s, int c)
+char *strrchr(const char *s, int c)
 {
        const char *p = s + strlen(s);
        do {
@@ -296,8 +294,8 @@ EXPORT_SYMBOL(strrchr);
 char *strnchr(const char *s, size_t count, int c)
 {
         for (; count-- && *s != '\0'; ++s)
-                if (*s == (char) c)
-                        return (char *) s;
+                if (*s == (char)c)
+                        return (char *)s;
         return NULL;
 }
 EXPORT_SYMBOL(strnchr);
@@ -308,7 +306,7 @@ EXPORT_SYMBOL(strnchr);
  * strlen - Find the length of a string
  * @s: The string to be sized
  */
-size_t strlen(const char * s)
+size_t strlen(const char *s)
 {
         const char *sc;
 
@@ -325,7 +323,7 @@ EXPORT_SYMBOL(strlen);
  * @s: The string to be sized
  * @count: The maximum number of bytes to search
  */
-size_t strnlen(const char * s, size_t count)
+size_t strnlen(const char *s, size_t count)
 {
         const char *sc;
 
@@ -358,7 +356,6 @@ size_t strspn(const char *s, const char *accept)
                         return count;
                 ++count;
         }
-
         return count;
 }
 
@@ -384,9 +381,8 @@ size_t strcspn(const char *s, const char *reject)
                 }
                 ++count;
         }
-
         return count;
-}       
+}
 EXPORT_SYMBOL(strcspn);
 
 #ifndef __HAVE_ARCH_STRPBRK
@@ -395,14 +391,14 @@ EXPORT_SYMBOL(strcspn);
  * @cs: The string to be searched
  * @ct: The characters to search for
  */
-char * strpbrk(const char * cs,const char * ct)
+char *strpbrk(const char *cs, const char *ct)
 {
-        const char *sc1,*sc2;
+        const char *sc1, *sc2;
 
-        for( sc1 = cs; *sc1 != '\0'; ++sc1) {
-                for( sc2 = ct; *sc2 != '\0'; ++sc2) {
+        for (sc1 = cs; *sc1 != '\0'; ++sc1) {
+                for (sc2 = ct; *sc2 != '\0'; ++sc2) {
                         if (*sc1 == *sc2)
-                                return (char *) sc1;
+                                return (char *)sc1;
                 }
         }
         return NULL;
@@ -422,9 +418,10 @@ EXPORT_SYMBOL(strpbrk);
  * of that name. In fact, it was stolen from glibc2 and de-fancy-fied.
  * Same semantics, slimmer shape. ;)
  */
-char * strsep(char **s, const char *ct)
+char *strsep(char **s, const char *ct)
 {
-        char *sbegin = *s, *end;
+        char *sbegin = *s;
+        char *end;
 
         if (sbegin == NULL)
                 return NULL;
@@ -433,10 +430,8 @@ char * strsep(char **s, const char *ct)
         if (end)
                 *end++ = '\0';
         *s = end;
-
         return sbegin;
 }
-
 EXPORT_SYMBOL(strsep);
 #endif
 
@@ -449,13 +444,12 @@ EXPORT_SYMBOL(strsep);
  *
  * Do not use memset() to access IO space, use memset_io() instead.
  */
-void * memset(void * s,int c,size_t count)
+void *memset(void *s, int c, size_t count)
 {
-        char *xs = (char *) s;
+        char *xs = s;
 
         while (count--)
                 *xs++ = c;
-
         return s;
 }
 EXPORT_SYMBOL(memset);
@@ -471,13 +465,13 @@ EXPORT_SYMBOL(memset);
  * You should not use this function to access IO space, use memcpy_toio()
  * or memcpy_fromio() instead.
  */
-void * memcpy(void * dest,const void *src,size_t count)
+void *memcpy(void *dest, const void *src, size_t count)
 {
-        char *tmp = (char *) dest, *s = (char *) src;
+        char *tmp = dest;
+        char *s = src;
 
         while (count--)
                 *tmp++ = *s++;
-
         return dest;
 }
 EXPORT_SYMBOL(memcpy);
@@ -492,23 +486,24 @@ EXPORT_SYMBOL(memcpy);
  *
  * Unlike memcpy(), memmove() copes with overlapping areas.
  */
-void * memmove(void * dest,const void *src,size_t count)
+void *memmove(void *dest, const void *src, size_t count)
 {
-        char *tmp, *s;
+        char *tmp;
+        const char *s;
 
         if (dest <= src) {
-                tmp = (char *) dest;
-                s = (char *) src;
+                tmp = dest;
+                s = src;
                 while (count--)
                         *tmp++ = *s++;
-                }
-        else {
-                tmp = (char *) dest + count;
-                s = (char *) src + count;
+        } else {
+                tmp = dest;
+                tmp += count;
+                s = src;
+                s += count;
                 while (count--)
                         *--tmp = *--s;
-                }
-
+        }
         return dest;
 }
 EXPORT_SYMBOL(memmove);
@@ -522,12 +517,12 @@ EXPORT_SYMBOL(memmove);
  * @count: The size of the area.
  */
 #undef memcmp
-int memcmp(const void * cs,const void * ct,size_t count)
+int memcmp(const void *cs, const void *ct, size_t count)
 {
         const unsigned char *su1, *su2;
         int res = 0;
 
-        for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
+        for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
                 if ((res = *su1 - *su2) != 0)
                         break;
         return res;
@@ -545,17 +540,17 @@ EXPORT_SYMBOL(memcmp);
  * returns the address of the first occurrence of @c, or 1 byte past
  * the area if @c is not found
  */
-void * memscan(void * addr, int c, size_t size)
+void *memscan(void *addr, int c, size_t size)
 {
-        unsigned char * p = (unsigned char *) addr;
+        unsigned char *p = addr;
 
         while (size) {
                 if (*p == c)
-                        return (void *) p;
+                        return (void *)p;
                 p++;
                 size--;
         }
-        return (void *) p;
+        return (void *)p;
 }
 EXPORT_SYMBOL(memscan);
 #endif
@@ -566,18 +561,18 @@ EXPORT_SYMBOL(memscan);
  * @s1: The string to be searched
  * @s2: The string to search for
  */
-char * strstr(const char * s1,const char * s2)
+char *strstr(const char *s1, const char *s2)
 {
         int l1, l2;
 
         l2 = strlen(s2);
         if (!l2)
-                return (char *) s1;
+                return (char *)s1;
         l1 = strlen(s1);
         while (l1 >= l2) {
                 l1--;
-                if (!memcmp(s1,s2,l2))
-                        return (char *) s1;
+                if (!memcmp(s1, s2, l2))
+                        return (char *)s1;
                 s1++;
         }
         return NULL;
@@ -600,7 +595,7 @@ void *memchr(const void *s, int c, size_t n)
         const unsigned char *p = s;
         while (n-- != 0) {
                 if ((unsigned char)c == *p++) {
-                        return (void *)(p-1);
+                        return (void *)(p - 1);
                 }
         }
         return NULL;
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index e4e9031dd9c3..b07db5ca3f66 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -23,6 +23,7 @@
 #include <linux/ctype.h>
 #include <linux/kernel.h>
 
+#include <asm/page.h>           /* for PAGE_SIZE */
 #include <asm/div64.h>
 
 /**
diff --git a/lib/zlib_inflate/inflate.c b/lib/zlib_inflate/inflate.c
index 3d94cb90c1d3..31b9e9054bf7 100644
--- a/lib/zlib_inflate/inflate.c
+++ b/lib/zlib_inflate/inflate.c
@@ -3,7 +3,6 @@
  * For conditions of distribution and use, see copyright notice in zlib.h 
  */
 
-#include <linux/module.h>
 #include <linux/zutil.h>
 #include "infblock.h"
 #include "infutil.h"
diff --git a/mm/filemap.c b/mm/filemap.c
index 768687f1d46b..5d6e4c2000dc 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1030,8 +1030,8 @@ __generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
                         desc.error = 0;
                         do_generic_file_read(filp,ppos,&desc,file_read_actor);
                         retval += desc.written;
-                        if (!retval) {
-                                retval = desc.error;
+                        if (desc.error) {
+                                retval = retval ?: desc.error;
                                 break;
                         }
                 }
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 2076b1542b8a..5abc57c2b8bd 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -457,6 +457,7 @@ long do_get_mempolicy(int *policy, nodemask_t *nmask,
         struct vm_area_struct *vma = NULL;
         struct mempolicy *pol = current->mempolicy;
 
+        cpuset_update_current_mems_allowed();
         if (flags & ~(unsigned long)(MPOL_F_NODE|MPOL_F_ADDR))
                 return -EINVAL;
         if (flags & MPOL_F_ADDR) {
@@ -1206,3 +1207,66 @@ void numa_default_policy(void)
 {
         do_set_mempolicy(MPOL_DEFAULT, NULL);
 }
+
+/* Migrate a policy to a different set of nodes */
+static void rebind_policy(struct mempolicy *pol, const nodemask_t *old,
+                                                        const nodemask_t *new)
+{
+        nodemask_t tmp;
+
+        if (!pol)
+                return;
+
+        switch (pol->policy) {
+        case MPOL_DEFAULT:
+                break;
+        case MPOL_INTERLEAVE:
+                nodes_remap(tmp, pol->v.nodes, *old, *new);
+                pol->v.nodes = tmp;
+                current->il_next = node_remap(current->il_next, *old, *new);
+                break;
+        case MPOL_PREFERRED:
+                pol->v.preferred_node = node_remap(pol->v.preferred_node,
+                                                                *old, *new);
+                break;
+        case MPOL_BIND: {
+                nodemask_t nodes;
+                struct zone **z;
+                struct zonelist *zonelist;
+
+                nodes_clear(nodes);
+                for (z = pol->v.zonelist->zones; *z; z++)
+                        node_set((*z)->zone_pgdat->node_id, nodes);
+                nodes_remap(tmp, nodes, *old, *new);
+                nodes = tmp;
+
+                zonelist = bind_zonelist(&nodes);
+
+                /* If no mem, then zonelist is NULL and we keep old zonelist.
+                 * If that old zonelist has no remaining mems_allowed nodes,
+                 * then zonelist_policy() will "FALL THROUGH" to MPOL_DEFAULT.
+                 */
+
+                if (zonelist) {
+                        /* Good - got mem - substitute new zonelist */
+                        kfree(pol->v.zonelist);
+                        pol->v.zonelist = zonelist;
+                }
+                break;
+        }
+        default:
+                BUG();
+                break;
+        }
+}
+
+/*
+ * Someone moved this task to different nodes.  Fixup mempolicies.
+ *
+ * TODO - fixup current->mm->vma and shmfs/tmpfs/hugetlbfs policies as well,
+ * once we have a cpuset mechanism to mark which cpuset subtree is migrating.
+ */
+void numa_policy_rebind(const nodemask_t *old, const nodemask_t *new)
+{
+        rebind_policy(current->mempolicy, old, new);
+}
diff --git a/mm/mmap.c b/mm/mmap.c
index 5ecc2cf3e1d7..320dda1778c3 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1840,7 +1840,7 @@ asmlinkage long sys_munmap(unsigned long addr, size_t len)
 
 static inline void verify_mm_writelocked(struct mm_struct *mm)
 {
-#ifdef CONFIG_DEBUG_KERNEL
+#ifdef CONFIG_DEBUG_VM
         if (unlikely(down_read_trylock(&mm->mmap_sem))) {
                 WARN_ON(1);
                 up_read(&mm->mmap_sem);
diff --git a/mm/pdflush.c b/mm/pdflush.c
index d6781951267e..52822c98c489 100644
--- a/mm/pdflush.c
+++ b/mm/pdflush.c
@@ -20,6 +20,7 @@
 #include <linux/fs.h>           // Needed by writeback.h
 #include <linux/writeback.h>    // Prototypes pdflush_operation()
 #include <linux/kthread.h>
+#include <linux/cpuset.h>
 
 
 /*
@@ -170,12 +171,24 @@ static int __pdflush(struct pdflush_work *my_work)
 static int pdflush(void *dummy)
 {
         struct pdflush_work my_work;
+        cpumask_t cpus_allowed;
 
         /*
          * pdflush can spend a lot of time doing encryption via dm-crypt.  We
          * don't want to do that at keventd's priority.
          */
         set_user_nice(current, 0);
+
+        /*
+         * Some configs put our parent kthread in a limited cpuset,
+         * which kthread() overrides, forcing cpus_allowed == CPU_MASK_ALL.
+         * Our needs are more modest - cut back to our cpusets cpus_allowed.
+         * This is needed as pdflush's are dynamically created and destroyed.
+         * The boottime pdflush's are easily placed w/o these 2 lines.
+         */
+        cpus_allowed = cpuset_cpus_allowed(current);
+        set_cpus_allowed(current, cpus_allowed);
+
         return __pdflush(&my_work);
 }
 
diff --git a/mm/swap.c b/mm/swap.c
index b89512877ec2..96387e20184a 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -270,7 +270,6 @@ void __pagevec_release_nonlru(struct pagevec *pvec)
         struct pagevec pages_to_free;
 
         pagevec_init(&pages_to_free, pvec->cold);
-        pages_to_free.cold = pvec->cold;
         for (i = 0; i < pagevec_count(pvec); i++) {
                 struct page *page = pvec->pages[i];
 
diff --git a/mm/tiny-shmem.c b/mm/tiny-shmem.c
index c13a2161bca2..b58abcf44ed6 100644
--- a/mm/tiny-shmem.c
+++ b/mm/tiny-shmem.c
@@ -31,11 +31,14 @@ static struct vfsmount *shm_mnt;
 
 static int __init init_tmpfs(void)
 {
-        register_filesystem(&tmpfs_fs_type);
+        BUG_ON(register_filesystem(&tmpfs_fs_type) != 0);
+
 #ifdef CONFIG_TMPFS
         devfs_mk_dir("shm");
 #endif
         shm_mnt = kern_mount(&tmpfs_fs_type);
+        BUG_ON(IS_ERR(shm_mnt));
+
         return 0;
 }
 module_init(init_tmpfs)
diff --git a/mm/truncate.c b/mm/truncate.c
index 60c8764bfac2..29c18f68dc35 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -13,18 +13,9 @@
 #include <linux/pagemap.h>
 #include <linux/pagevec.h>
 #include <linux/buffer_head.h>  /* grr. try_to_release_page,
-                                   block_invalidatepage */
+                                   do_invalidatepage */
 
 
-static int do_invalidatepage(struct page *page, unsigned long offset)
-{
-        int (*invalidatepage)(struct page *, unsigned long);
-        invalidatepage = page->mapping->a_ops->invalidatepage;
-        if (invalidatepage == NULL)
-                invalidatepage = block_invalidatepage;
-        return (*invalidatepage)(page, offset);
-}
-
 static inline void truncate_partial_page(struct page *page, unsigned partial)
 {
         memclear_highpage_flush(page, partial, PAGE_CACHE_SIZE-partial);
diff --git a/net/ipv4/netfilter/ipt_addrtype.c b/net/ipv4/netfilter/ipt_addrtype.c
index f5909a4c3fc7..e19c2a52d00c 100644
--- a/net/ipv4/netfilter/ipt_addrtype.c
+++ b/net/ipv4/netfilter/ipt_addrtype.c
@@ -48,7 +48,7 @@ static int checkentry(const char *tablename, const struct ipt_ip *ip,
                       unsigned int hook_mask)
 {
         if (matchsize != IPT_ALIGN(sizeof(struct ipt_addrtype_info))) {
-                printk(KERN_ERR "ipt_addrtype: invalid size (%u != %Zu)\n.",
+                printk(KERN_ERR "ipt_addrtype: invalid size (%u != %Zu)\n",
                        matchsize, IPT_ALIGN(sizeof(struct ipt_addrtype_info)));
                 return 0;
         }
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 2fcb244a9e18..0dd96919de3e 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -116,6 +116,15 @@ endif
 clean-files     := lkc_defs.h qconf.moc .tmp_qtcheck \
                    .tmp_gtkcheck zconf.tab.c zconf.tab.h lex.zconf.c
 
+# Needed for systems without gettext
+KBUILD_HAVE_NLS := $(shell \
+     if echo "\#include <libint.h>" | $(HOSTCC) $(HOSTCFLAGS) -E - > /dev/null 2>&1 ; \
+     then echo yes ; \
+     else echo no ; fi)
+ifeq ($(KBUILD_HAVE_NLS),no)
+HOSTCFLAGS      += -DKBUILD_NO_NLS
+endif
+
 # generated files seem to need this to find local include files
 HOSTCFLAGS_lex.zconf.o  := -I$(src)
 HOSTCFLAGS_zconf.tab.o  := -I$(src)
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index c3d25786a64d..5fba1feff2a8 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -8,7 +8,13 @@
 
 #include "expr.h"
 
-#include <libintl.h>
+#ifndef KBUILD_NO_NLS
+# include <libintl.h>
+#else
+# define gettext(Msgid) ((const char *) (Msgid))
+# define textdomain(Domainname) ((const char *) (Domainname))
+# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
+#endif
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 457bec29511d..d1ad40531ee5 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -219,6 +219,7 @@ save_config_help[] = N_(
 search_help[] = N_(
         "\n"
         "Search for CONFIG_ symbols and display their relations.\n"
+        "Regular expressions are allowed.\n"
         "Example: search for \"^FOO\"\n"
         "Result:\n"
         "-----------------------------------------------------------------\n"
@@ -531,7 +532,7 @@ again:
         cprint("--title");
         cprint(_("Search Configuration Parameter"));
         cprint("--inputbox");
-        cprint(_("Enter Keyword"));
+        cprint(_("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"));
         cprint("10");
         cprint("75");
         cprint("");
diff --git a/security/dummy.c b/security/dummy.c
index 3d34f3de7e82..3ca5f2b828a0 100644
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -377,7 +377,7 @@ static int dummy_inode_removexattr (struct dentry *dentry, char *name)
         return 0;
 }
 
-static int dummy_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
+static int dummy_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err)
 {
         return -EOPNOTSUPP;
 }
@@ -803,6 +803,23 @@ static int dummy_setprocattr(struct task_struct *p, char *name, void *value, siz
         return -EINVAL;
 }
 
+#ifdef CONFIG_KEYS
+static inline int dummy_key_alloc(struct key *key)
+{
+        return 0;
+}
+
+static inline void dummy_key_free(struct key *key)
+{
+}
+
+static inline int dummy_key_permission(key_ref_t key_ref,
+                                       struct task_struct *context,
+                                       key_perm_t perm)
+{
+        return 0;
+}
+#endif /* CONFIG_KEYS */
 
 struct security_operations dummy_security_ops;
 
@@ -954,5 +971,11 @@ void security_fixup_ops (struct security_operations *ops)
         set_to_dummy_if_null(ops, sk_alloc_security);
         set_to_dummy_if_null(ops, sk_free_security);
 #endif  /* CONFIG_SECURITY_NETWORK */
+#ifdef CONFIG_KEYS
+        set_to_dummy_if_null(ops, key_alloc);
+        set_to_dummy_if_null(ops, key_free);
+        set_to_dummy_if_null(ops, key_permission);
+#endif  /* CONFIG_KEYS */
+
 }
 
diff --git a/security/keys/key.c b/security/keys/key.c
index 2182be9e9309..ccde17aff616 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -1,6 +1,6 @@
 /* key.c: basic authentication token and access key management
  *
- * Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/security.h>
 #include <linux/workqueue.h>
 #include <linux/err.h>
 #include "internal.h"
@@ -253,6 +254,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
         struct key_user *user = NULL;
         struct key *key;
         size_t desclen, quotalen;
+        int ret;
 
         key = ERR_PTR(-EINVAL);
         if (!desc || !*desc)
@@ -305,6 +307,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
         key->flags = 0;
         key->expiry = 0;
         key->payload.data = NULL;
+        key->security = NULL;
 
         if (!not_in_quota)
                 key->flags |= 1 << KEY_FLAG_IN_QUOTA;
@@ -315,16 +318,34 @@ struct key *key_alloc(struct key_type *type, const char *desc,
         key->magic = KEY_DEBUG_MAGIC;
 #endif
 
+        /* let the security module know about the key */
+        ret = security_key_alloc(key);
+        if (ret < 0)
+                goto security_error;
+
         /* publish the key by giving it a serial number */
         atomic_inc(&user->nkeys);
         key_alloc_serial(key);
 
- error:
+error:
         return key;
 
- no_memory_3:
+security_error:
+        kfree(key->description);
+        kmem_cache_free(key_jar, key);
+        if (!not_in_quota) {
+                spin_lock(&user->lock);
+                user->qnkeys--;
+                user->qnbytes -= quotalen;
+                spin_unlock(&user->lock);
+        }
+        key_user_put(user);
+        key = ERR_PTR(ret);
+        goto error;
+
+no_memory_3:
         kmem_cache_free(key_jar, key);
- no_memory_2:
+no_memory_2:
         if (!not_in_quota) {
                 spin_lock(&user->lock);
                 user->qnkeys--;
@@ -332,11 +353,11 @@ struct key *key_alloc(struct key_type *type, const char *desc,
                 spin_unlock(&user->lock);
         }
         key_user_put(user);
- no_memory_1:
+no_memory_1:
         key = ERR_PTR(-ENOMEM);
         goto error;
 
- no_quota:
+no_quota:
         spin_unlock(&user->lock);
         key_user_put(user);
         key = ERR_PTR(-EDQUOT);
@@ -556,6 +577,8 @@ static void key_cleanup(void *data)
 
         key_check(key);
 
+        security_key_free(key);
+
         /* deal with the user's key tracking and quota */
         if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {
                 spin_lock(&key->user->lock);
@@ -700,8 +723,8 @@ static inline key_ref_t __key_update(key_ref_t key_ref,
         int ret;
 
         /* need write permission on the key to update it */
-        ret = -EACCES;
-        if (!key_permission(key_ref, KEY_WRITE))
+        ret = key_permission(key_ref, KEY_WRITE);
+        if (ret < 0)
                 goto error;
 
         ret = -EEXIST;
@@ -711,7 +734,6 @@ static inline key_ref_t __key_update(key_ref_t key_ref,
         down_write(&key->sem);
 
         ret = key->type->update(key, payload, plen);
-
         if (ret == 0)
                 /* updating a negative key instantiates it */
                 clear_bit(KEY_FLAG_NEGATIVE, &key->flags);
@@ -768,9 +790,11 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 
         /* if we're going to allocate a new key, we're going to have
          * to modify the keyring */
-        key_ref = ERR_PTR(-EACCES);
-        if (!key_permission(keyring_ref, KEY_WRITE))
+        ret = key_permission(keyring_ref, KEY_WRITE);
+        if (ret < 0) {
+                key_ref = ERR_PTR(ret);
                 goto error_3;
+        }
 
         /* search for an existing key of the same type and description in the
          * destination keyring
@@ -780,8 +804,8 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
                 goto found_matching_key;
 
         /* decide on the permissions we want */
-        perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK;
-        perm |= KEY_USR_VIEW | KEY_USR_SEARCH | KEY_USR_LINK;
+        perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK | KEY_POS_SETATTR;
+        perm |= KEY_USR_VIEW | KEY_USR_SEARCH | KEY_USR_LINK | KEY_USR_SETATTR;
 
         if (ktype->read)
                 perm |= KEY_POS_READ | KEY_USR_READ;
@@ -840,16 +864,16 @@ int key_update(key_ref_t key_ref, const void *payload, size_t plen)
         key_check(key);
 
         /* the key must be writable */
-        ret = -EACCES;
-        if (!key_permission(key_ref, KEY_WRITE))
+        ret = key_permission(key_ref, KEY_WRITE);
+        if (ret < 0)
                 goto error;
 
         /* attempt to update it if supported */
         ret = -EOPNOTSUPP;
         if (key->type->update) {
                 down_write(&key->sem);
-                ret = key->type->update(key, payload, plen);
 
+                ret = key->type->update(key, payload, plen);
                 if (ret == 0)
                         /* updating a negative key instantiates it */
                         clear_bit(KEY_FLAG_NEGATIVE, &key->flags);
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 4c670ee6acf9..b7a468fabdf9 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -624,8 +624,8 @@ long keyctl_keyring_search(key_serial_t ringid,
 
         /* link the resulting key to the destination keyring if we can */
         if (dest_ref) {
-                ret = -EACCES;
-                if (!key_permission(key_ref, KEY_LINK))
+                ret = key_permission(key_ref, KEY_LINK);
+                if (ret < 0)
                         goto error6;
 
                 ret = key_link(key_ref_to_ptr(dest_ref), key_ref_to_ptr(key_ref));
@@ -676,8 +676,11 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)
         key = key_ref_to_ptr(key_ref);
 
         /* see if we can read it directly */
-        if (key_permission(key_ref, KEY_READ))
+        ret = key_permission(key_ref, KEY_READ);
+        if (ret == 0)
                 goto can_read_key;
+        if (ret != -EACCES)
+                goto error;
 
         /* we can't; see if it's searchable from this process's keyrings
          * - we automatically take account of the fact that it may be
@@ -726,7 +729,7 @@ long keyctl_chown_key(key_serial_t id, uid_t uid, gid_t gid)
         if (uid == (uid_t) -1 && gid == (gid_t) -1)
                 goto error;
 
-        key_ref = lookup_user_key(NULL, id, 1, 1, 0);
+        key_ref = lookup_user_key(NULL, id, 1, 1, KEY_SETATTR);
         if (IS_ERR(key_ref)) {
                 ret = PTR_ERR(key_ref);
                 goto error;
@@ -786,7 +789,7 @@ long keyctl_setperm_key(key_serial_t id, key_perm_t perm)
         if (perm & ~(KEY_POS_ALL | KEY_USR_ALL | KEY_GRP_ALL | KEY_OTH_ALL))
                 goto error;
 
-        key_ref = lookup_user_key(NULL, id, 1, 1, 0);
+        key_ref = lookup_user_key(NULL, id, 1, 1, KEY_SETATTR);
         if (IS_ERR(key_ref)) {
                 ret = PTR_ERR(key_ref);
                 goto error;
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 0639396dd441..e1cc4dd79012 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/security.h>
 #include <linux/seq_file.h>
 #include <linux/err.h>
 #include <asm/uaccess.h>
@@ -309,7 +310,9 @@ struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid,
         int ret;
 
         keyring = key_alloc(&key_type_keyring, description,
-                            uid, gid, KEY_POS_ALL | KEY_USR_ALL, not_in_quota);
+                            uid, gid,
+                            (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_ALL,
+                            not_in_quota);
 
         if (!IS_ERR(keyring)) {
                 ret = key_instantiate_and_link(keyring, NULL, 0, dest, NULL);
@@ -359,9 +362,11 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
         key_check(keyring);
 
         /* top keyring must have search permission to begin the search */
-        key_ref = ERR_PTR(-EACCES);
-        if (!key_task_permission(keyring_ref, context, KEY_SEARCH))
+        err = key_task_permission(keyring_ref, context, KEY_SEARCH);
+        if (err < 0) {
+                key_ref = ERR_PTR(err);
                 goto error;
+        }
 
         key_ref = ERR_PTR(-ENOTDIR);
         if (keyring->type != &key_type_keyring)
@@ -402,8 +407,8 @@ descend:
                         continue;
 
                 /* key must have search permissions */
-                if (!key_task_permission(make_key_ref(key, possessed),
-                                         context, KEY_SEARCH))
+                if (key_task_permission(make_key_ref(key, possessed),
+                                        context, KEY_SEARCH) < 0)
                         continue;
 
                 /* we set a different error code if we find a negative key */
@@ -430,7 +435,7 @@ ascend:
                         continue;
 
                 if (!key_task_permission(make_key_ref(key, possessed),
-                                         context, KEY_SEARCH))
+                                         context, KEY_SEARCH) < 0)
                         continue;
 
                 /* stack the current position */
@@ -521,7 +526,7 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
                             (!key->type->match ||
                              key->type->match(key, description)) &&
                             key_permission(make_key_ref(key, possessed),
-                                           perm) &&
+                                           perm) < 0 &&
                             !test_bit(KEY_FLAG_REVOKED, &key->flags)
                             )
                                 goto found;
@@ -617,7 +622,7 @@ struct key *find_keyring_by_name(const char *name, key_serial_t bound)
                                 continue;
 
                         if (!key_permission(make_key_ref(keyring, 0),
-                                            KEY_SEARCH))
+                                            KEY_SEARCH) < 0)
                                 continue;
 
                         /* found a potential candidate, but we still need to
diff --git a/security/keys/permission.c b/security/keys/permission.c
index 03db073ba45c..e7f579c0eaf5 100644
--- a/security/keys/permission.c
+++ b/security/keys/permission.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/security.h>
 #include "internal.h"
 
 /*****************************************************************************/
@@ -63,7 +64,11 @@ use_these_perms:
 
         kperm = kperm & perm & KEY_ALL;
 
-        return kperm == perm;
+        if (kperm != perm)
+                return -EACCES;
+
+        /* let LSM be the final arbiter */
+        return security_key_permission(key_ref, context, perm);
 
 } /* end key_task_permission() */
 
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index d42d2158ce13..566b1cc0118a 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -39,7 +39,7 @@ struct key root_user_keyring = {
         .type           = &key_type_keyring,
         .user           = &root_key_user,
         .sem            = __RWSEM_INITIALIZER(root_user_keyring.sem),
-        .perm           = KEY_POS_ALL | KEY_USR_ALL,
+        .perm           = (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_ALL,
         .flags          = 1 << KEY_FLAG_INSTANTIATED,
         .description    = "_uid.0",
 #ifdef KEY_DEBUGGING
@@ -54,7 +54,7 @@ struct key root_session_keyring = {
         .type           = &key_type_keyring,
         .user           = &root_key_user,
         .sem            = __RWSEM_INITIALIZER(root_session_keyring.sem),
-        .perm           = KEY_POS_ALL | KEY_USR_ALL,
+        .perm           = (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_ALL,
         .flags          = 1 << KEY_FLAG_INSTANTIATED,
         .description    = "_uid_ses.0",
 #ifdef KEY_DEBUGGING
@@ -666,9 +666,8 @@ key_ref_t lookup_user_key(struct task_struct *context, key_serial_t id,
                 goto invalid_key;
 
         /* check the permissions */
-        ret = -EACCES;
-
-        if (!key_task_permission(key_ref, context, perm))
+        ret = key_task_permission(key_ref, context, perm);
+        if (ret < 0)
                 goto invalid_key;
 
 error:
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index e446acba73d3..cbda3b2780a1 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -15,18 +15,10 @@
 #include <linux/slab.h>
 #include <linux/seq_file.h>
 #include <linux/err.h>
+#include <keys/user-type.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
-static int user_instantiate(struct key *key, const void *data, size_t datalen);
-static int user_duplicate(struct key *key, const struct key *source);
-static int user_update(struct key *key, const void *data, size_t datalen);
-static int user_match(const struct key *key, const void *criterion);
-static void user_destroy(struct key *key);
-static void user_describe(const struct key *user, struct seq_file *m);
-static long user_read(const struct key *key,
-                      char __user *buffer, size_t buflen);
-
 /*
  * user defined keys take an arbitrary string as the description and an
  * arbitrary blob of data as the payload
@@ -42,19 +34,13 @@ struct key_type key_type_user = {
         .read           = user_read,
 };
 
-struct user_key_payload {
-        struct rcu_head rcu;            /* RCU destructor */
-        unsigned short  datalen;        /* length of this data */
-        char            data[0];        /* actual data */
-};
-
 EXPORT_SYMBOL_GPL(key_type_user);
 
 /*****************************************************************************/
 /*
  * instantiate a user defined key
  */
-static int user_instantiate(struct key *key, const void *data, size_t datalen)
+int user_instantiate(struct key *key, const void *data, size_t datalen)
 {
         struct user_key_payload *upayload;
         int ret;
@@ -78,18 +64,20 @@ static int user_instantiate(struct key *key, const void *data, size_t datalen)
         rcu_assign_pointer(key->payload.data, upayload);
         ret = 0;
 
- error:
+error:
         return ret;
 
 } /* end user_instantiate() */
 
+EXPORT_SYMBOL_GPL(user_instantiate);
+
 /*****************************************************************************/
 /*
  * duplicate a user defined key
  * - both keys' semaphores are locked against further modification
  * - the new key cannot yet be accessed
  */
-static int user_duplicate(struct key *key, const struct key *source)
+int user_duplicate(struct key *key, const struct key *source)
 {
         struct user_key_payload *upayload, *spayload;
         int ret;
@@ -112,6 +100,8 @@ static int user_duplicate(struct key *key, const struct key *source)
 
 } /* end user_duplicate() */
 
+EXPORT_SYMBOL_GPL(user_duplicate);
+
 /*****************************************************************************/
 /*
  * dispose of the old data from an updated user defined key
@@ -131,7 +121,7 @@ static void user_update_rcu_disposal(struct rcu_head *rcu)
  * update a user defined key
  * - the key's semaphore is write-locked
  */
-static int user_update(struct key *key, const void *data, size_t datalen)
+int user_update(struct key *key, const void *data, size_t datalen)
 {
         struct user_key_payload *upayload, *zap;
         int ret;
@@ -163,26 +153,30 @@ static int user_update(struct key *key, const void *data, size_t datalen)
 
         call_rcu(&zap->rcu, user_update_rcu_disposal);
 
- error:
+error:
         return ret;
 
 } /* end user_update() */
 
+EXPORT_SYMBOL_GPL(user_update);
+
 /*****************************************************************************/
 /*
  * match users on their name
  */
-static int user_match(const struct key *key, const void *description)
+int user_match(const struct key *key, const void *description)
 {
         return strcmp(key->description, description) == 0;
 
 } /* end user_match() */
 
+EXPORT_SYMBOL_GPL(user_match);
+
 /*****************************************************************************/
 /*
  * dispose of the data dangling from the corpse of a user
  */
-static void user_destroy(struct key *key)
+void user_destroy(struct key *key)
 {
         struct user_key_payload *upayload = key->payload.data;
 
@@ -190,11 +184,13 @@ static void user_destroy(struct key *key)
 
 } /* end user_destroy() */
 
+EXPORT_SYMBOL_GPL(user_destroy);
+
 /*****************************************************************************/
 /*
  * describe the user key
  */
-static void user_describe(const struct key *key, struct seq_file *m)
+void user_describe(const struct key *key, struct seq_file *m)
 {
         seq_puts(m, key->description);
 
@@ -202,13 +198,14 @@ static void user_describe(const struct key *key, struct seq_file *m)
 
 } /* end user_describe() */
 
+EXPORT_SYMBOL_GPL(user_describe);
+
 /*****************************************************************************/
 /*
  * read the key data
  * - the key's semaphore is read-locked
  */
-static long user_read(const struct key *key,
-                      char __user *buffer, size_t buflen)
+long user_read(const struct key *key, char __user *buffer, size_t buflen)
 {
         struct user_key_payload *upayload;
         long ret;
@@ -228,3 +225,5 @@ static long user_read(const struct key *key,
         return ret;
 
 } /* end user_read() */
+
+EXPORT_SYMBOL_GPL(user_read);
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 447a1e0f48cb..45c41490d521 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -122,11 +122,10 @@ static int task_alloc_security(struct task_struct *task)
 {
         struct task_security_struct *tsec;
 
-        tsec = kmalloc(sizeof(struct task_security_struct), GFP_KERNEL);
+        tsec = kzalloc(sizeof(struct task_security_struct), GFP_KERNEL);
         if (!tsec)
                 return -ENOMEM;
 
-        memset(tsec, 0, sizeof(struct task_security_struct));
         tsec->magic = SELINUX_MAGIC;
         tsec->task = task;
         tsec->osid = tsec->sid = tsec->ptrace_sid = SECINITSID_UNLABELED;
@@ -151,11 +150,10 @@ static int inode_alloc_security(struct inode *inode)
         struct task_security_struct *tsec = current->security;
         struct inode_security_struct *isec;
 
-        isec = kmalloc(sizeof(struct inode_security_struct), GFP_KERNEL);
+        isec = kzalloc(sizeof(struct inode_security_struct), GFP_KERNEL);
         if (!isec)
                 return -ENOMEM;
 
-        memset(isec, 0, sizeof(struct inode_security_struct));
         init_MUTEX(&isec->sem);
         INIT_LIST_HEAD(&isec->list);
         isec->magic = SELINUX_MAGIC;
@@ -193,11 +191,10 @@ static int file_alloc_security(struct file *file)
         struct task_security_struct *tsec = current->security;
         struct file_security_struct *fsec;
 
-        fsec = kmalloc(sizeof(struct file_security_struct), GFP_ATOMIC);
+        fsec = kzalloc(sizeof(struct file_security_struct), GFP_ATOMIC);
         if (!fsec)
                 return -ENOMEM;
 
-        memset(fsec, 0, sizeof(struct file_security_struct));
         fsec->magic = SELINUX_MAGIC;
         fsec->file = file;
         if (tsec && tsec->magic == SELINUX_MAGIC) {
@@ -227,11 +224,10 @@ static int superblock_alloc_security(struct super_block *sb)
 {
         struct superblock_security_struct *sbsec;
 
-        sbsec = kmalloc(sizeof(struct superblock_security_struct), GFP_KERNEL);
+        sbsec = kzalloc(sizeof(struct superblock_security_struct), GFP_KERNEL);
         if (!sbsec)
                 return -ENOMEM;
 
-        memset(sbsec, 0, sizeof(struct superblock_security_struct));
         init_MUTEX(&sbsec->sem);
         INIT_LIST_HEAD(&sbsec->list);
         INIT_LIST_HEAD(&sbsec->isec_head);
@@ -269,11 +265,10 @@ static int sk_alloc_security(struct sock *sk, int family, gfp_t priority)
         if (family != PF_UNIX)
                 return 0;
 
-        ssec = kmalloc(sizeof(*ssec), priority);
+        ssec = kzalloc(sizeof(*ssec), priority);
         if (!ssec)
                 return -ENOMEM;
 
-        memset(ssec, 0, sizeof(*ssec));
         ssec->magic = SELINUX_MAGIC;
         ssec->sk = sk;
         ssec->peer_sid = SECINITSID_UNLABELED;
@@ -1483,11 +1478,10 @@ static int selinux_bprm_alloc_security(struct linux_binprm *bprm)
 {
         struct bprm_security_struct *bsec;
 
-        bsec = kmalloc(sizeof(struct bprm_security_struct), GFP_KERNEL);
+        bsec = kzalloc(sizeof(struct bprm_security_struct), GFP_KERNEL);
         if (!bsec)
                 return -ENOMEM;
 
-        memset(bsec, 0, sizeof *bsec);
         bsec->magic = SELINUX_MAGIC;
         bsec->bprm = bprm;
         bsec->sid = SECINITSID_UNLABELED;
@@ -1615,7 +1609,7 @@ static inline void flush_unauthorized_files(struct files_struct * files)
 
         if (tty) {
                 file_list_lock();
-                file = list_entry(tty->tty_files.next, typeof(*file), f_list);
+                file = list_entry(tty->tty_files.next, typeof(*file), f_u.fu_list);
                 if (file) {
                         /* Revalidate access to controlling tty.
                            Use inode_has_perm on the tty inode directly rather
@@ -2211,12 +2205,6 @@ static void selinux_inode_post_setxattr(struct dentry *dentry, char *name,
 
 static int selinux_inode_getxattr (struct dentry *dentry, char *name)
 {
-        struct inode *inode = dentry->d_inode;
-        struct superblock_security_struct *sbsec = inode->i_sb->s_security;
-
-        if (sbsec->behavior == SECURITY_FS_USE_MNTPOINT)
-                return -EOPNOTSUPP;
-
         return dentry_has_perm(current, NULL, dentry, FILE__GETATTR);
 }
 
@@ -2247,33 +2235,54 @@ static int selinux_inode_removexattr (struct dentry *dentry, char *name)
         return -EACCES;
 }
 
-static int selinux_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
+/*
+ * Copy the in-core inode security context value to the user.  If the
+ * getxattr() prior to this succeeded, check to see if we need to
+ * canonicalize the value to be finally returned to the user.
+ *
+ * Permission check is handled by selinux_inode_getxattr hook.
+ */
+static int selinux_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err)
 {
         struct inode_security_struct *isec = inode->i_security;
         char *context;
         unsigned len;
         int rc;
 
-        /* Permission check handled by selinux_inode_getxattr hook.*/
-
-        if (strcmp(name, XATTR_SELINUX_SUFFIX))
-                return -EOPNOTSUPP;
+        if (strcmp(name, XATTR_SELINUX_SUFFIX)) {
+                rc = -EOPNOTSUPP;
+                goto out;
+        }
 
         rc = security_sid_to_context(isec->sid, &context, &len);
         if (rc)
-                return rc;
+                goto out;
 
+        /* Probe for required buffer size */
         if (!buffer || !size) {
-                kfree(context);
-                return len;
+                rc = len;
+                goto out_free;
         }
+
         if (size < len) {
-                kfree(context);
-                return -ERANGE;
+                rc = -ERANGE;
+                goto out_free;
+        }
+
+        if (err > 0) {
+                if ((len == err) && !(memcmp(context, buffer, len))) {
+                        /* Don't need to canonicalize value */
+                        rc = err;
+                        goto out_free;
+                }
+                memset(buffer, 0, size);
         }
         memcpy(buffer, context, len);
+        rc = len;
+out_free:
         kfree(context);
-        return len;
+out:
+        return rc;
 }
 
 static int selinux_inode_setsecurity(struct inode *inode, const char *name,
@@ -2704,8 +2713,7 @@ static int selinux_task_kill(struct task_struct *p, struct siginfo *info, int si
         if (rc)
                 return rc;
 
-        if (info && ((unsigned long)info == 1 ||
-                     (unsigned long)info == 2 || SI_FROMKERNEL(info)))
+        if (info != SEND_SIG_NOINFO && (is_si_special(info) || SI_FROMKERNEL(info)))
                 return 0;
 
         if (!sig)
@@ -3599,11 +3607,10 @@ static int ipc_alloc_security(struct task_struct *task,
         struct task_security_struct *tsec = task->security;
         struct ipc_security_struct *isec;
 
-        isec = kmalloc(sizeof(struct ipc_security_struct), GFP_KERNEL);
+        isec = kzalloc(sizeof(struct ipc_security_struct), GFP_KERNEL);
         if (!isec)
                 return -ENOMEM;
 
-        memset(isec, 0, sizeof(struct ipc_security_struct));
         isec->magic = SELINUX_MAGIC;
         isec->sclass = sclass;
         isec->ipc_perm = perm;
@@ -3631,11 +3638,10 @@ static int msg_msg_alloc_security(struct msg_msg *msg)
 {
         struct msg_security_struct *msec;
 
-        msec = kmalloc(sizeof(struct msg_security_struct), GFP_KERNEL);
+        msec = kzalloc(sizeof(struct msg_security_struct), GFP_KERNEL);
         if (!msec)
                 return -ENOMEM;
 
-        memset(msec, 0, sizeof(struct msg_security_struct));
         msec->magic = SELINUX_MAGIC;
         msec->msg = msg;
         msec->sid = SECINITSID_UNLABELED;
diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index 718d7be9f4dd..b10c34e8a743 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -114,13 +114,12 @@ static struct sel_netif *sel_netif_lookup(struct net_device *dev)
         if (likely(netif != NULL))
                 goto out;
         
-        new = kmalloc(sizeof(*new), GFP_ATOMIC);
+        new = kzalloc(sizeof(*new), GFP_ATOMIC);
         if (!new) {
                 netif = ERR_PTR(-ENOMEM);
                 goto out;
         }
         
-        memset(new, 0, sizeof(*new));
         nsec = &new->nsec;
 
         ret = security_netif_sid(dev->name, &nsec->if_sid, &nsec->msg_sid);
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index a45cc971e735..fdc382389720 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -105,7 +105,7 @@ static ssize_t sel_write_enforce(struct file * file, const char __user * buf,
         ssize_t length;
         int new_value;
 
-        if (count < 0 || count >= PAGE_SIZE)
+        if (count >= PAGE_SIZE)
                 return -ENOMEM;
         if (*ppos != 0) {
                 /* No partial writes. */
@@ -155,7 +155,7 @@ static ssize_t sel_write_disable(struct file * file, const char __user * buf,
         int new_value;
         extern int selinux_disable(void);
 
-        if (count < 0 || count >= PAGE_SIZE)
+        if (count >= PAGE_SIZE)
                 return -ENOMEM;
         if (*ppos != 0) {
                 /* No partial writes. */
@@ -242,7 +242,7 @@ static ssize_t sel_write_load(struct file * file, const char __user * buf,
                 goto out;
         }
 
-        if ((count < 0) || (count > 64 * 1024 * 1024)
+        if ((count > 64 * 1024 * 1024)
             || (data = vmalloc(count)) == NULL) {
                 length = -ENOMEM;
                 goto out;
@@ -284,7 +284,7 @@ static ssize_t sel_write_context(struct file * file, const char __user * buf,
         if (length)
                 return length;
 
-        if (count < 0 || count >= PAGE_SIZE)
+        if (count >= PAGE_SIZE)
                 return -ENOMEM;
         if (*ppos != 0) {
                 /* No partial writes. */
@@ -332,7 +332,7 @@ static ssize_t sel_write_checkreqprot(struct file * file, const char __user * bu
         if (length)
                 return length;
 
-        if (count < 0 || count >= PAGE_SIZE)
+        if (count >= PAGE_SIZE)
                 return -ENOMEM;
         if (*ppos != 0) {
                 /* No partial writes. */
@@ -424,15 +424,13 @@ static ssize_t sel_write_access(struct file * file, char *buf, size_t size)
                 return length;
 
         length = -ENOMEM;
-        scon = kmalloc(size+1, GFP_KERNEL);
+        scon = kzalloc(size+1, GFP_KERNEL);
         if (!scon)
                 return length;
-        memset(scon, 0, size+1);
 
-        tcon = kmalloc(size+1, GFP_KERNEL);
+        tcon = kzalloc(size+1, GFP_KERNEL);
         if (!tcon)
                 goto out;
-        memset(tcon, 0, size+1);
 
         length = -EINVAL;
         if (sscanf(buf, "%s %s %hu %x", scon, tcon, &tclass, &req) != 4)
@@ -475,15 +473,13 @@ static ssize_t sel_write_create(struct file * file, char *buf, size_t size)
                 return length;
 
         length = -ENOMEM;
-        scon = kmalloc(size+1, GFP_KERNEL);
+        scon = kzalloc(size+1, GFP_KERNEL);
         if (!scon)
                 return length;
-        memset(scon, 0, size+1);
 
-        tcon = kmalloc(size+1, GFP_KERNEL);
+        tcon = kzalloc(size+1, GFP_KERNEL);
         if (!tcon)
                 goto out;
-        memset(tcon, 0, size+1);
 
         length = -EINVAL;
         if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
@@ -536,15 +532,13 @@ static ssize_t sel_write_relabel(struct file * file, char *buf, size_t size)
                 return length;
 
         length = -ENOMEM;
-        scon = kmalloc(size+1, GFP_KERNEL);
+        scon = kzalloc(size+1, GFP_KERNEL);
         if (!scon)
                 return length;
-        memset(scon, 0, size+1);
 
-        tcon = kmalloc(size+1, GFP_KERNEL);
+        tcon = kzalloc(size+1, GFP_KERNEL);
         if (!tcon)
                 goto out;
-        memset(tcon, 0, size+1);
 
         length = -EINVAL;
         if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
@@ -595,15 +589,13 @@ static ssize_t sel_write_user(struct file * file, char *buf, size_t size)
                 return length;
 
         length = -ENOMEM;
-        con = kmalloc(size+1, GFP_KERNEL);
+        con = kzalloc(size+1, GFP_KERNEL);
         if (!con)
                 return length;
-        memset(con, 0, size+1);
 
-        user = kmalloc(size+1, GFP_KERNEL);
+        user = kzalloc(size+1, GFP_KERNEL);
         if (!user)
                 goto out;
-        memset(user, 0, size+1);
 
         length = -EINVAL;
         if (sscanf(buf, "%s %s", con, user) != 2)
@@ -658,15 +650,13 @@ static ssize_t sel_write_member(struct file * file, char *buf, size_t size)
                 return length;
 
         length = -ENOMEM;
-        scon = kmalloc(size+1, GFP_KERNEL);
+        scon = kzalloc(size+1, GFP_KERNEL);
         if (!scon)
                 return length;
-        memset(scon, 0, size+1);
 
-        tcon = kmalloc(size+1, GFP_KERNEL);
+        tcon = kzalloc(size+1, GFP_KERNEL);
         if (!tcon)
                 goto out;
-        memset(tcon, 0, size+1);
 
         length = -EINVAL;
         if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
@@ -739,7 +729,7 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf,
         if (!filep->f_op)
                 goto out;
 
-        if (count < 0 || count > PAGE_SIZE) {
+        if (count > PAGE_SIZE) {
                 ret = -EINVAL;
                 goto out;
         }
@@ -800,7 +790,7 @@ static ssize_t sel_write_bool(struct file *filep, const char __user *buf,
         if (!filep->f_op)
                 goto out;
 
-        if (count < 0 || count >= PAGE_SIZE) {
+        if (count >= PAGE_SIZE) {
                 length = -ENOMEM;
                 goto out;
         }
@@ -858,7 +848,7 @@ static ssize_t sel_commit_bools_write(struct file *filep,
         if (!filep->f_op)
                 goto out;
 
-        if (count < 0 || count >= PAGE_SIZE) {
+        if (count >= PAGE_SIZE) {
                 length = -ENOMEM;
                 goto out;
         }
@@ -924,7 +914,7 @@ static void sel_remove_bools(struct dentry *de)
 
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file * filp = list_entry(p, struct file, f_list);
+                struct file * filp = list_entry(p, struct file, f_u.fu_list);
                 struct dentry * dentry = filp->f_dentry;
 
                 if (dentry->d_parent != de) {
@@ -1032,7 +1022,7 @@ static ssize_t sel_write_avc_cache_threshold(struct file * file,
         ssize_t ret;
         int new_value;
 
-        if (count < 0 || count >= PAGE_SIZE) {
+        if (count >= PAGE_SIZE) {
                 ret = -ENOMEM;
                 goto out;
         }
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index daf288007460..d2737edba541 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -220,10 +220,9 @@ int cond_read_bool(struct policydb *p, struct hashtab *h, void *fp)
         u32 len;
         int rc;
 
-        booldatum = kmalloc(sizeof(struct cond_bool_datum), GFP_KERNEL);
+        booldatum = kzalloc(sizeof(struct cond_bool_datum), GFP_KERNEL);
         if (!booldatum)
                 return -1;
-        memset(booldatum, 0, sizeof(struct cond_bool_datum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -321,10 +320,9 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
                 goto err;
         }
 
-        list = kmalloc(sizeof(struct cond_av_list), GFP_KERNEL);
+        list = kzalloc(sizeof(struct cond_av_list), GFP_KERNEL);
         if (!list)
                 goto err;
-        memset(list, 0, sizeof(*list));
 
         list->node = node_ptr;
         if (!data->head)
@@ -414,11 +412,10 @@ static int cond_read_node(struct policydb *p, struct cond_node *node, void *fp)
                 if (rc < 0)
                         goto err;
 
-                expr = kmalloc(sizeof(struct cond_expr), GFP_KERNEL);
+                expr = kzalloc(sizeof(struct cond_expr), GFP_KERNEL);
                 if (!expr) {
                         goto err;
                 }
-                memset(expr, 0, sizeof(struct cond_expr));
 
                 expr->expr_type = le32_to_cpu(buf[0]);
                 expr->bool = le32_to_cpu(buf[1]);
@@ -460,10 +457,9 @@ int cond_read_list(struct policydb *p, void *fp)
         len = le32_to_cpu(buf[0]);
 
         for (i = 0; i < len; i++) {
-                node = kmalloc(sizeof(struct cond_node), GFP_KERNEL);
+                node = kzalloc(sizeof(struct cond_node), GFP_KERNEL);
                 if (!node)
                         goto err;
-                memset(node, 0, sizeof(struct cond_node));
 
                 if (cond_read_node(p, node, fp) != 0)
                         goto err;
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index d515154128cc..47024a6e1844 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -39,12 +39,11 @@ int ebitmap_cpy(struct ebitmap *dst, struct ebitmap *src)
         n = src->node;
         prev = NULL;
         while (n) {
-                new = kmalloc(sizeof(*new), GFP_ATOMIC);
+                new = kzalloc(sizeof(*new), GFP_ATOMIC);
                 if (!new) {
                         ebitmap_destroy(dst);
                         return -ENOMEM;
                 }
-                memset(new, 0, sizeof(*new));
                 new->startbit = n->startbit;
                 new->map = n->map;
                 new->next = NULL;
@@ -150,10 +149,9 @@ int ebitmap_set_bit(struct ebitmap *e, unsigned long bit, int value)
         if (!value)
                 return 0;
 
-        new = kmalloc(sizeof(*new), GFP_ATOMIC);
+        new = kzalloc(sizeof(*new), GFP_ATOMIC);
         if (!new)
                 return -ENOMEM;
-        memset(new, 0, sizeof(*new));
 
         new->startbit = bit & ~(MAPSIZE - 1);
         new->map = (MAPBIT << (bit - new->startbit));
@@ -232,13 +230,12 @@ int ebitmap_read(struct ebitmap *e, void *fp)
                         printk(KERN_ERR "security: ebitmap: truncated map\n");
                         goto bad;
                 }
-                n = kmalloc(sizeof(*n), GFP_KERNEL);
+                n = kzalloc(sizeof(*n), GFP_KERNEL);
                 if (!n) {
                         printk(KERN_ERR "security: ebitmap: out of memory\n");
                         rc = -ENOMEM;
                         goto bad;
                 }
-                memset(n, 0, sizeof(*n));
 
                 n->startbit = le32_to_cpu(buf[0]);
 
diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c
index 26661fcc00ce..24e5ec957630 100644
--- a/security/selinux/ss/hashtab.c
+++ b/security/selinux/ss/hashtab.c
@@ -15,11 +15,10 @@ struct hashtab *hashtab_create(u32 (*hash_value)(struct hashtab *h, void *key),
         struct hashtab *p;
         u32 i;
 
-        p = kmalloc(sizeof(*p), GFP_KERNEL);
+        p = kzalloc(sizeof(*p), GFP_KERNEL);
         if (p == NULL)
                 return p;
 
-        memset(p, 0, sizeof(*p));
         p->size = size;
         p->nel = 0;
         p->hash_value = hash_value;
@@ -55,10 +54,9 @@ int hashtab_insert(struct hashtab *h, void *key, void *datum)
         if (cur && (h->keycmp(h, key, cur->key) == 0))
                 return -EEXIST;
 
-        newnode = kmalloc(sizeof(*newnode), GFP_KERNEL);
+        newnode = kzalloc(sizeof(*newnode), GFP_KERNEL);
         if (newnode == NULL)
                 return -ENOMEM;
-        memset(newnode, 0, sizeof(*newnode));
         newnode->key = key;
         newnode->datum = datum;
         if (prev) {
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 8e6262d12aa9..2f5f539875f2 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -121,12 +121,11 @@ static int roles_init(struct policydb *p)
         int rc;
         struct role_datum *role;
 
-        role = kmalloc(sizeof(*role), GFP_KERNEL);
+        role = kzalloc(sizeof(*role), GFP_KERNEL);
         if (!role) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(role, 0, sizeof(*role));
         role->value = ++p->p_roles.nprim;
         if (role->value != OBJECT_R_VAL) {
                 rc = -EINVAL;
@@ -851,12 +850,11 @@ static int perm_read(struct policydb *p, struct hashtab *h, void *fp)
         __le32 buf[2];
         u32 len;
 
-        perdatum = kmalloc(sizeof(*perdatum), GFP_KERNEL);
+        perdatum = kzalloc(sizeof(*perdatum), GFP_KERNEL);
         if (!perdatum) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(perdatum, 0, sizeof(*perdatum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -893,12 +891,11 @@ static int common_read(struct policydb *p, struct hashtab *h, void *fp)
         u32 len, nel;
         int i, rc;
 
-        comdatum = kmalloc(sizeof(*comdatum), GFP_KERNEL);
+        comdatum = kzalloc(sizeof(*comdatum), GFP_KERNEL);
         if (!comdatum) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(comdatum, 0, sizeof(*comdatum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -950,10 +947,9 @@ static int read_cons_helper(struct constraint_node **nodep, int ncons,
 
         lc = NULL;
         for (i = 0; i < ncons; i++) {
-                c = kmalloc(sizeof(*c), GFP_KERNEL);
+                c = kzalloc(sizeof(*c), GFP_KERNEL);
                 if (!c)
                         return -ENOMEM;
-                memset(c, 0, sizeof(*c));
 
                 if (lc) {
                         lc->next = c;
@@ -969,10 +965,9 @@ static int read_cons_helper(struct constraint_node **nodep, int ncons,
                 le = NULL;
                 depth = -1;
                 for (j = 0; j < nexpr; j++) {
-                        e = kmalloc(sizeof(*e), GFP_KERNEL);
+                        e = kzalloc(sizeof(*e), GFP_KERNEL);
                         if (!e)
                                 return -ENOMEM;
-                        memset(e, 0, sizeof(*e));
 
                         if (le) {
                                 le->next = e;
@@ -1033,12 +1028,11 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
         u32 len, len2, ncons, nel;
         int i, rc;
 
-        cladatum = kmalloc(sizeof(*cladatum), GFP_KERNEL);
+        cladatum = kzalloc(sizeof(*cladatum), GFP_KERNEL);
         if (!cladatum) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(cladatum, 0, sizeof(*cladatum));
 
         rc = next_entry(buf, fp, sizeof(u32)*6);
         if (rc < 0)
@@ -1127,12 +1121,11 @@ static int role_read(struct policydb *p, struct hashtab *h, void *fp)
         __le32 buf[2];
         u32 len;
 
-        role = kmalloc(sizeof(*role), GFP_KERNEL);
+        role = kzalloc(sizeof(*role), GFP_KERNEL);
         if (!role) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(role, 0, sizeof(*role));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -1188,12 +1181,11 @@ static int type_read(struct policydb *p, struct hashtab *h, void *fp)
         __le32 buf[3];
         u32 len;
 
-        typdatum = kmalloc(sizeof(*typdatum),GFP_KERNEL);
+        typdatum = kzalloc(sizeof(*typdatum),GFP_KERNEL);
         if (!typdatum) {
                 rc = -ENOMEM;
                 return rc;
         }
-        memset(typdatum, 0, sizeof(*typdatum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -1261,12 +1253,11 @@ static int user_read(struct policydb *p, struct hashtab *h, void *fp)
         __le32 buf[2];
         u32 len;
 
-        usrdatum = kmalloc(sizeof(*usrdatum), GFP_KERNEL);
+        usrdatum = kzalloc(sizeof(*usrdatum), GFP_KERNEL);
         if (!usrdatum) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(usrdatum, 0, sizeof(*usrdatum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -1316,12 +1307,11 @@ static int sens_read(struct policydb *p, struct hashtab *h, void *fp)
         __le32 buf[2];
         u32 len;
 
-        levdatum = kmalloc(sizeof(*levdatum), GFP_ATOMIC);
+        levdatum = kzalloc(sizeof(*levdatum), GFP_ATOMIC);
         if (!levdatum) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(levdatum, 0, sizeof(*levdatum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -1368,12 +1358,11 @@ static int cat_read(struct policydb *p, struct hashtab *h, void *fp)
         __le32 buf[3];
         u32 len;
 
-        catdatum = kmalloc(sizeof(*catdatum), GFP_ATOMIC);
+        catdatum = kzalloc(sizeof(*catdatum), GFP_ATOMIC);
         if (!catdatum) {
                 rc = -ENOMEM;
                 goto out;
         }
-        memset(catdatum, 0, sizeof(*catdatum));
 
         rc = next_entry(buf, fp, sizeof buf);
         if (rc < 0)
@@ -1567,12 +1556,11 @@ int policydb_read(struct policydb *p, void *fp)
         nel = le32_to_cpu(buf[0]);
         ltr = NULL;
         for (i = 0; i < nel; i++) {
-                tr = kmalloc(sizeof(*tr), GFP_KERNEL);
+                tr = kzalloc(sizeof(*tr), GFP_KERNEL);
                 if (!tr) {
                         rc = -ENOMEM;
                         goto bad;
                 }
-                memset(tr, 0, sizeof(*tr));
                 if (ltr) {
                         ltr->next = tr;
                 } else {
@@ -1593,12 +1581,11 @@ int policydb_read(struct policydb *p, void *fp)
         nel = le32_to_cpu(buf[0]);
         lra = NULL;
         for (i = 0; i < nel; i++) {
-                ra = kmalloc(sizeof(*ra), GFP_KERNEL);
+                ra = kzalloc(sizeof(*ra), GFP_KERNEL);
                 if (!ra) {
                         rc = -ENOMEM;
                         goto bad;
                 }
-                memset(ra, 0, sizeof(*ra));
                 if (lra) {
                         lra->next = ra;
                 } else {
@@ -1627,12 +1614,11 @@ int policydb_read(struct policydb *p, void *fp)
                 nel = le32_to_cpu(buf[0]);
                 l = NULL;
                 for (j = 0; j < nel; j++) {
-                        c = kmalloc(sizeof(*c), GFP_KERNEL);
+                        c = kzalloc(sizeof(*c), GFP_KERNEL);
                         if (!c) {
                                 rc = -ENOMEM;
                                 goto bad;
                         }
-                        memset(c, 0, sizeof(*c));
                         if (l) {
                                 l->next = c;
                         } else {
@@ -1743,12 +1729,11 @@ int policydb_read(struct policydb *p, void *fp)
                 if (rc < 0)
                         goto bad;
                 len = le32_to_cpu(buf[0]);
-                newgenfs = kmalloc(sizeof(*newgenfs), GFP_KERNEL);
+                newgenfs = kzalloc(sizeof(*newgenfs), GFP_KERNEL);
                 if (!newgenfs) {
                         rc = -ENOMEM;
                         goto bad;
                 }
-                memset(newgenfs, 0, sizeof(*newgenfs));
 
                 newgenfs->fstype = kmalloc(len + 1,GFP_KERNEL);
                 if (!newgenfs->fstype) {
@@ -1790,12 +1775,11 @@ int policydb_read(struct policydb *p, void *fp)
                                 goto bad;
                         len = le32_to_cpu(buf[0]);
 
-                        newc = kmalloc(sizeof(*newc), GFP_KERNEL);
+                        newc = kzalloc(sizeof(*newc), GFP_KERNEL);
                         if (!newc) {
                                 rc = -ENOMEM;
                                 goto bad;
                         }
-                        memset(newc, 0, sizeof(*newc));
 
                         newc->u.name = kmalloc(len + 1,GFP_KERNEL);
                         if (!newc->u.name) {
@@ -1843,12 +1827,11 @@ int policydb_read(struct policydb *p, void *fp)
                 nel = le32_to_cpu(buf[0]);
                 lrt = NULL;
                 for (i = 0; i < nel; i++) {
-                        rt = kmalloc(sizeof(*rt), GFP_KERNEL);
+                        rt = kzalloc(sizeof(*rt), GFP_KERNEL);
                         if (!rt) {
                                 rc = -ENOMEM;
                                 goto bad;
                         }
-                        memset(rt, 0, sizeof(*rt));
                         if (lrt)
                                 lrt->next = rt;
                         else
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index aecdded55e74..44eb4d74908d 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -1531,12 +1531,11 @@ int security_get_user_sids(u32 fromsid,
         }
         usercon.user = user->value;
 
-        mysids = kmalloc(maxnel*sizeof(*mysids), GFP_ATOMIC);
+        mysids = kcalloc(maxnel, sizeof(*mysids), GFP_ATOMIC);
         if (!mysids) {
                 rc = -ENOMEM;
                 goto out_unlock;
         }
-        memset(mysids, 0, maxnel*sizeof(*mysids));
 
         ebitmap_for_each_bit(&user->roles, rnode, i) {
                 if (!ebitmap_node_get_bit(rnode, i))
@@ -1566,13 +1565,12 @@ int security_get_user_sids(u32 fromsid,
                                 mysids[mynel++] = sid;
                         } else {
                                 maxnel += SIDS_NEL;
-                                mysids2 = kmalloc(maxnel*sizeof(*mysids2), GFP_ATOMIC);
+                                mysids2 = kcalloc(maxnel, sizeof(*mysids2), GFP_ATOMIC);
                                 if (!mysids2) {
                                         rc = -ENOMEM;
                                         kfree(mysids);
                                         goto out_unlock;
                                 }
-                                memset(mysids2, 0, maxnel*sizeof(*mysids2));
                                 memcpy(mysids2, mysids, mynel * sizeof(*mysids2));
                                 kfree(mysids);
                                 mysids = mysids2;
@@ -1714,12 +1712,11 @@ int security_get_bools(int *len, char ***names, int **values)
                 goto out;
         }
 
-        *names = (char**)kmalloc(sizeof(char*) * *len, GFP_ATOMIC);
+        *names = (char**)kcalloc(*len, sizeof(char*), GFP_ATOMIC);
         if (!*names)
                 goto err;
-        memset(*names, 0, sizeof(char*) * *len);
 
-        *values = (int*)kmalloc(sizeof(int) * *len, GFP_ATOMIC);
+        *values = (int*)kcalloc(*len, sizeof(int), GFP_ATOMIC);
         if (!*values)
                 goto err;
 
diff --git a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c
index 3ecef4689f1b..fd25aca25120 100644
--- a/sound/oss/ac97_codec.c
+++ b/sound/oss/ac97_codec.c
@@ -55,6 +55,7 @@
 #include <linux/pci.h>
 #include <linux/ac97_codec.h>
 #include <asm/uaccess.h>
+#include <asm/semaphore.h>
 
 #define CODEC_ID_BUFSZ 14
 
diff --git a/sound/oss/awe_wave.c b/sound/oss/awe_wave.c
index d2b9beda8ace..b3ea719d33db 100644
--- a/sound/oss/awe_wave.c
+++ b/sound/oss/awe_wave.c
@@ -6062,7 +6062,7 @@ static int awe_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id
         io1 = pnp_port_start(dev,0);
         io2 = pnp_port_start(dev,1);
         io3 = pnp_port_start(dev,2);
-        printk(KERN_INFO "AWE32: A PnP Wave Table was detected at IO's %#x,%#x,%#x\n.",
+        printk(KERN_INFO "AWE32: A PnP Wave Table was detected at IO's %#x,%#x,%#x.\n",
                io1, io2, io3);
         setup_ports(io1, io2, io3);
 
diff --git a/sound/oss/cs4232.c b/sound/oss/cs4232.c
index 6ec308f5d935..7c59e2d4003a 100644
--- a/sound/oss/cs4232.c
+++ b/sound/oss/cs4232.c
@@ -195,10 +195,12 @@ static int __init probe_cs4232(struct address_info *hw_config, int isapnp_config
                 CS_OUT2(0x15, 0x00);    /* Select logical device 0 (WSS/SB/FM) */
                 CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSS base */
 
-                if (check_region(0x388, 4))     /* Not free */
+                if (!request_region(0x388, 4, "FM"))    /* Not free */
                         CS_OUT3(0x48, 0x00, 0x00)       /* FM base off */
-                else
+                else {
+                        release_region(0x388, 4);
                         CS_OUT3(0x48, 0x03, 0x88);      /* FM base 0x388 */
+                }
 
                 CS_OUT3(0x42, 0x00, 0x00);      /* SB base off */
                 CS_OUT2(0x22, irq);             /* SB+WSS IRQ */
diff --git a/sound/oss/wavfront.c b/sound/oss/wavfront.c
index b92ba8921638..b1a4eeb9dc08 100644
--- a/sound/oss/wavfront.c
+++ b/sound/oss/wavfront.c
@@ -2434,7 +2434,7 @@ static int __init detect_wavefront (int irq, int io_base)
            consumes 16.
         */
 
-        if (check_region (io_base, 16)) {
+        if (!request_region (io_base, 16, "wavfront")) {
                 printk (KERN_ERR LOGNAME "IO address range 0x%x - 0x%x "
                         "already in use - ignored\n", dev.base,
                         dev.base+15);
@@ -2466,10 +2466,13 @@ static int __init detect_wavefront (int irq, int io_base)
                 } else {
                         printk (KERN_WARNING LOGNAME "not raw, but no "
                                 "hardware version!\n");
+                        release_region (io_base, 16);
                         return 0;
                 }
 
                 if (!wf_raw) {
+                        /* will re-acquire region in install_wavefront() */
+                        release_region (io_base, 16);
                         return 1;
                 } else {
                         printk (KERN_INFO LOGNAME
@@ -2489,6 +2492,7 @@ static int __init detect_wavefront (int irq, int io_base)
 
         if (wavefront_hw_reset ()) {
                 printk (KERN_WARNING LOGNAME "hardware reset failed\n");
+                release_region (io_base, 16);
                 return 0;
         }
 
@@ -2496,6 +2500,8 @@ static int __init detect_wavefront (int irq, int io_base)
 
         dev.has_fx = (detect_wffx () == 0);
 
+        /* will re-acquire region in install_wavefront() */
+        release_region (io_base, 16);
         return 1;
 }
 
@@ -2804,17 +2810,27 @@ static int __init wavefront_init (int atboot)
 }
 
 static int __init install_wavefront (void)
-
 {
+        if (!request_region (dev.base+2, 6, "wavefront synth"))
+                return -1;
+
+        if (dev.has_fx) {
+                if (!request_region (dev.base+8, 8, "wavefront fx")) {
+                        release_region (dev.base+2, 6);
+                        return -1;
+                }
+        }
+
         if ((dev.synth_dev = register_sound_synth (&wavefront_fops, -1)) < 0) {
                 printk (KERN_ERR LOGNAME "cannot register raw synth\n");
-                return -1;
+                goto err_out;
         }
 
 #if OSS_SUPPORT_LEVEL & OSS_SUPPORT_SEQ
         if ((dev.oss_dev = sound_alloc_synthdev()) == -1) {
                 printk (KERN_ERR LOGNAME "Too many sequencers\n");
-                return -1;
+                /* FIXME: leak: should unregister sound synth */
+                goto err_out;
         } else {
                 synth_devs[dev.oss_dev] = &wavefront_operations;
         }
@@ -2827,20 +2843,20 @@ static int __init install_wavefront (void)
                 sound_unload_synthdev (dev.oss_dev);
 #endif /* OSS_SUPPORT_SEQ */ 
 
-                return -1;
+                goto err_out;
         }
     
-        request_region (dev.base+2, 6, "wavefront synth");
-
-        if (dev.has_fx) {
-                request_region (dev.base+8, 8, "wavefront fx");
-        }
-
         if (wavefront_config_midi ()) {
                 printk (KERN_WARNING LOGNAME "could not initialize MIDI.\n");
         }
 
         return dev.oss_dev;
+
+err_out:
+        release_region (dev.base+2, 6);
+        if (dev.has_fx)
+                release_region (dev.base+8, 8);
+        return -1;
 }
 
 static void __exit uninstall_wavefront (void)