384 files changed, 24087 insertions, 2390 deletions

diff --git a/Documentation/ABI/testing/debugfs-pktcdvd b/Documentation/ABI/testing/debugfs-pktcdvd
index bf9c16b64c34..cf11736acb76 100644
--- a/Documentation/ABI/testing/debugfs-pktcdvd
+++ b/Documentation/ABI/testing/debugfs-pktcdvd
@@ -1,4 +1,4 @@
-What:           /debug/pktcdvd/pktcdvd[0-7]
+What:           /sys/kernel/debug/pktcdvd/pktcdvd[0-7]
 Date:           Oct. 2006
 KernelVersion:  2.6.20
 Contact:        Thomas Maier <balagi@justmail.de>
@@ -10,10 +10,10 @@ debugfs interface
 The pktcdvd module (packet writing driver) creates
 these files in debugfs:
 
-/debug/pktcdvd/pktcdvd[0-7]/
+/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/
     info            (0444) Lots of driver statistics and infos.
 
 Example:
 -------
 
-cat /debug/pktcdvd/pktcdvd0/info
+cat /sys/kernel/debug/pktcdvd/pktcdvd0/info
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index a3a83d38f96f..8918a32c6b3a 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -31,7 +31,7 @@ PS_METHOD	= $(prefer-db2x)
 
 ###
 # The targets that may be used.
-PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs
+PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
 
 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
 xmldocs: $(BOOKS)
@@ -213,11 +213,12 @@ silent_gen_xml = :
 dochelp:
         @echo  ' Linux kernel internal documentation in different formats:'
         @echo  '  htmldocs        - HTML'
-        @echo  '  installmandocs  - install man pages generated by mandocs'
-        @echo  '  mandocs         - man pages'
         @echo  '  pdfdocs         - PDF'
         @echo  '  psdocs          - Postscript'
         @echo  '  xmldocs         - XML DocBook'
+        @echo  '  mandocs         - man pages'
+        @echo  '  installmandocs  - install man pages generated by mandocs'
+        @echo  '  cleandocs       - clean all generated DocBook files'
 
 ###
 # Temporary files left by various tools
@@ -235,6 +236,10 @@ clean-files := $(DOCBOOKS) \
 
 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
 
+cleandocs:
+        $(Q)rm -f $(call objectify, $(clean-files))
+        $(Q)rm -rf $(call objectify, $(clean-dirs))
+
 # Declare the contents of the .PHONY variable as phony.  We keep that
 # information in a variable se we can use it in if_changed and friends.
 
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index a98a7fe7aabb..1a608877b14e 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -6,15 +6,14 @@ used here with the memory controller that is used in hardware.
 
 Salient features
 
-a. Enable control of both RSS (mapped) and Page Cache (unmapped) pages
+a. Enable control of Anonymous, Page Cache (mapped and unmapped) and
+   Swap Cache memory pages.
 b. The infrastructure allows easy addition of other types of memory to control
 c. Provides *zero overhead* for non memory controller users
 d. Provides a double LRU: global memory pressure causes reclaim from the
    global LRU; a cgroup on hitting a limit, reclaims from the per
    cgroup LRU
 
-NOTE: Swap Cache (unmapped) is not accounted now.
-
 Benefits and Purpose of the memory controller
 
 The memory controller isolates the memory behaviour of a group of tasks
@@ -290,34 +289,44 @@ will be charged as a new owner of it.
   moved to the parent. If you want to avoid that, force_empty will be useful.
 
 5.2 stat file
-  memory.stat file includes following statistics (now)
-        cache                   - # of pages from page-cache and shmem.
-        rss                     - # of pages from anonymous memory.
-        pgpgin                  - # of event of charging
-        pgpgout                 - # of event of uncharging
-        active_anon             - # of pages on active lru of anon, shmem.
-        inactive_anon           - # of pages on active lru of anon, shmem
-        active_file             - # of pages on active lru of file-cache
-        inactive_file           - # of pages on inactive lru of file cache
-        unevictable             - # of pages cannot be reclaimed.(mlocked etc)
-
-        Below is depend on CONFIG_DEBUG_VM.
-        inactive_ratio          - VM internal parameter. (see mm/page_alloc.c)
-        recent_rotated_anon     - VM internal parameter. (see mm/vmscan.c)
-        recent_rotated_file     - VM internal parameter. (see mm/vmscan.c)
-        recent_scanned_anon     - VM internal parameter. (see mm/vmscan.c)
-        recent_scanned_file     - VM internal parameter. (see mm/vmscan.c)
-
-  Memo:
+
+memory.stat file includes following statistics
+
+cache           - # of bytes of page cache memory.
+rss             - # of bytes of anonymous and swap cache memory.
+pgpgin          - # of pages paged in (equivalent to # of charging events).
+pgpgout         - # of pages paged out (equivalent to # of uncharging events).
+active_anon     - # of bytes of anonymous and  swap cache memory on active
+                  lru list.
+inactive_anon   - # of bytes of anonymous memory and swap cache memory on
+                  inactive lru list.
+active_file     - # of bytes of file-backed memory on active lru list.
+inactive_file   - # of bytes of file-backed memory on inactive lru list.
+unevictable     - # of bytes of memory that cannot be reclaimed (mlocked etc).
+
+The following additional stats are dependent on CONFIG_DEBUG_VM.
+
+inactive_ratio          - VM internal parameter. (see mm/page_alloc.c)
+recent_rotated_anon     - VM internal parameter. (see mm/vmscan.c)
+recent_rotated_file     - VM internal parameter. (see mm/vmscan.c)
+recent_scanned_anon     - VM internal parameter. (see mm/vmscan.c)
+recent_scanned_file     - VM internal parameter. (see mm/vmscan.c)
+
+Memo:
         recent_rotated means recent frequency of lru rotation.
         recent_scanned means recent # of scans to lru.
         showing for better debug please see the code for meanings.
 
+Note:
+        Only anonymous and swap cache memory is listed as part of 'rss' stat.
+        This should not be confused with the true 'resident set size' or the
+        amount of physical memory used by the cgroup. Per-cgroup rss
+        accounting is not done yet.
 
 5.3 swappiness
   Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
 
-  Following cgroup's swapiness can't be changed.
+  Following cgroups' swapiness can't be changed.
   - root cgroup (uses /proc/sys/vm/swappiness).
   - a cgroup which uses hierarchy and it has child cgroup.
   - a cgroup which uses hierarchy and not the root of hierarchy.
diff --git a/Documentation/cgroups/resource_counter.txt b/Documentation/cgroups/resource_counter.txt
index f196ac1d7d25..95b24d766eab 100644
--- a/Documentation/cgroups/resource_counter.txt
+++ b/Documentation/cgroups/resource_counter.txt
@@ -47,13 +47,18 @@ to work with it.
 
 2. Basic accounting routines
 
- a. void res_counter_init(struct res_counter *rc)
+ a. void res_counter_init(struct res_counter *rc,
+                                struct res_counter *rc_parent)
 
         Initializes the resource counter. As usual, should be the first
         routine called for a new counter.
 
- b. int res_counter_charge[_locked]
-                        (struct res_counter *rc, unsigned long val)
+        The struct res_counter *parent can be used to define a hierarchical
+        child -> parent relationship directly in the res_counter structure,
+        NULL can be used to define no relationship.
+
+ c. int res_counter_charge(struct res_counter *rc, unsigned long val,
+                                struct res_counter **limit_fail_at)
 
         When a resource is about to be allocated it has to be accounted
         with the appropriate resource counter (controller should determine
@@ -67,15 +72,25 @@ to work with it.
           * if the charging is performed first, then it should be uncharged
             on error path (if the one is called).
 
- c. void res_counter_uncharge[_locked]
+        If the charging fails and a hierarchical dependency exists, the
+        limit_fail_at parameter is set to the particular res_counter element
+        where the charging failed.
+
+ d. int res_counter_charge_locked
+                        (struct res_counter *rc, unsigned long val)
+
+        The same as res_counter_charge(), but it must not acquire/release the
+        res_counter->lock internally (it must be called with res_counter->lock
+        held).
+
+ e. void res_counter_uncharge[_locked]
                         (struct res_counter *rc, unsigned long val)
 
         When a resource is released (freed) it should be de-accounted
         from the resource counter it was accounted to.  This is called
         "uncharging".
 
-    The _locked routines imply that the res_counter->lock is taken.
-
+        The _locked routines imply that the res_counter->lock is taken.
 
  2.1 Other accounting routines
 
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 7e2af10e8264..de491a3e2313 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -428,3 +428,12 @@ Why:	In 2.6.27, the semantics of /sys/bus/pci/slots was redefined to
         After a reasonable transition period, we will remove the legacy
         fakephp interface.
 Who:    Alex Chiang <achiang@hp.com>
+
+---------------------------
+
+What:   i2c-voodoo3 driver
+When:   October 2009
+Why:    Superseded by tdfxfb. I2C/DDC support used to live in a separate
+        driver but this caused driver conflicts.
+Who:    Jean Delvare <khali@linux-fr.org>
+        Krzysztof Helt <krzysztof.h1@wp.pl>
diff --git a/Documentation/input/rotary-encoder.txt b/Documentation/input/rotary-encoder.txt
new file mode 100644
index 000000000000..435102a26d96
--- /dev/null
+++ b/Documentation/input/rotary-encoder.txt
@@ -0,0 +1,101 @@
+rotary-encoder - a generic driver for GPIO connected devices
+Daniel Mack <daniel@caiaq.de>, Feb 2009
+
+0. Function
+-----------
+
+Rotary encoders are devices which are connected to the CPU or other
+peripherals with two wires. The outputs are phase-shifted by 90 degrees
+and by triggering on falling and rising edges, the turn direction can
+be determined.
+
+The phase diagram of these two outputs look like this:
+
+                  _____       _____       _____
+                 |     |     |     |     |     |
+  Channel A  ____|     |_____|     |_____|     |____
+
+                 :  :  :  :  :  :  :  :  :  :  :  :
+            __       _____       _____       _____
+              |     |     |     |     |     |     |
+  Channel B   |_____|     |_____|     |_____|     |__
+
+                 :  :  :  :  :  :  :  :  :  :  :  :
+  Event          a  b  c  d  a  b  c  d  a  b  c  d
+
+                |<-------->|
+                  one step
+
+
+For more information, please see
+        http://en.wikipedia.org/wiki/Rotary_encoder
+
+
+1. Events / state machine
+-------------------------
+
+a) Rising edge on channel A, channel B in low state
+        This state is used to recognize a clockwise turn
+
+b) Rising edge on channel B, channel A in high state
+        When entering this state, the encoder is put into 'armed' state,
+        meaning that there it has seen half the way of a one-step transition.
+
+c) Falling edge on channel A, channel B in high state
+        This state is used to recognize a counter-clockwise turn
+
+d) Falling edge on channel B, channel A in low state
+        Parking position. If the encoder enters this state, a full transition
+        should have happend, unless it flipped back on half the way. The
+        'armed' state tells us about that.
+
+2. Platform requirements
+------------------------
+
+As there is no hardware dependent call in this driver, the platform it is
+used with must support gpiolib. Another requirement is that IRQs must be
+able to fire on both edges.
+
+
+3. Board integration
+--------------------
+
+To use this driver in your system, register a platform_device with the
+name 'rotary-encoder' and associate the IRQs and some specific platform
+data with it.
+
+struct rotary_encoder_platform_data is declared in
+include/linux/rotary-encoder.h and needs to be filled with the number of
+steps the encoder has and can carry information about externally inverted
+signals (because of used invertig buffer or other reasons).
+
+Because GPIO to IRQ mapping is platform specific, this information must
+be given in seperately to the driver. See the example below.
+
+---------<snip>---------
+
+/* board support file example */
+
+#include <linux/input.h>
+#include <linux/rotary_encoder.h>
+
+#define GPIO_ROTARY_A 1
+#define GPIO_ROTARY_B 2
+
+static struct rotary_encoder_platform_data my_rotary_encoder_info = {
+        .steps          = 24,
+        .axis           = ABS_X,
+        .gpio_a         = GPIO_ROTARY_A,
+        .gpio_b         = GPIO_ROTARY_B,
+        .inverted_a     = 0,
+        .inverted_b     = 0,
+};
+
+static struct platform_device rotary_encoder_device = {
+        .name           = "rotary-encoder",
+        .id             = 0,
+        .dev            = {
+                .platform_data = &my_rotary_encoder_info,
+        }
+};
+
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 51104f9194a5..d4b05672f9f7 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -40,10 +40,16 @@ This document describes the Linux kernel Makefiles.
            --- 6.7 Custom kbuild commands
            --- 6.8 Preprocessing linker scripts
 
-        === 7 Kbuild Variables
-        === 8 Makefile language
-        === 9 Credits
-        === 10 TODO
+        === 7 Kbuild syntax for exported headers
+                --- 7.1 header-y
+                --- 7.2 objhdr-y
+                --- 7.3 destination-y
+                --- 7.4 unifdef-y (deprecated)
+
+        === 8 Kbuild Variables
+        === 9 Makefile language
+        === 10 Credits
+        === 11 TODO
 
 === 1 Overview
 
@@ -1143,8 +1149,69 @@ When kbuild executes, the following steps are followed (roughly):
         The kbuild infrastructure for *lds file are used in several
         architecture-specific files.
 
+=== 7 Kbuild syntax for exported headers
+
+The kernel include a set of headers that is exported to userspace.
+Many headers can be exported as-is but other headers requires  a
+minimal pre-processing before they are ready for user-space.
+The pre-processing does:
+- drop kernel specific annotations
+- drop include of compiler.h
+- drop all sections that is kernel internat (guarded by ifdef __KERNEL__)
+
+Each relevant directory contain a file name "Kbuild" which specify the
+headers to be exported.
+See subsequent chapter for the syntax of the Kbuild file.
+
+        --- 7.1 header-y
+
+        header-y specify header files to be exported.
+
+                Example:
+                        #include/linux/Kbuild
+                        header-y += usb/
+                        header-y += aio_abi.h
+
+        The convention is to list one file per line and
+        preferably in alphabetic order.
+
+        header-y also specify which subdirectories to visit.
+        A subdirectory is identified by a trailing '/' which
+        can be seen in the example above for the usb subdirectory.
+
+        Subdirectories are visited before their parent directories.
+
+        --- 7.2 objhdr-y
+
+        objhdr-y specifies generated files to be exported.
+        Generated files are special as they need to be looked
+        up in another directory when doing 'make O=...' builds.
+
+                Example:
+                        #include/linux/Kbuild
+                        objhdr-y += version.h
+
+        --- 7.3 destination-y
+
+        When an architecture have a set of exported headers that needs to be
+        exported to a different directory destination-y is used.
+        destination-y specify the destination directory for all exported
+        headers in the file where it is present.
+
+                Example:
+                        #arch/xtensa/platforms/s6105/include/platform/Kbuild
+                        destination-y := include/linux
+
+        In the example above all exported headers in the Kbuild file
+        will be located in the directory "include/linux" when exported.
+
+
+        --- 7.4 unifdef-y (deprecated)
+
+        unifdef-y is deprecated. A direct replacement is header-y.
+
 
-=== 7 Kbuild Variables
+=== 8 Kbuild Variables
 
 The top Makefile exports the following variables:
 
@@ -1206,7 +1273,7 @@ The top Makefile exports the following variables:
         INSTALL_MOD_STRIP will used as the option(s) to the strip command.
 
 
-=== 8 Makefile language
+=== 9 Makefile language
 
 The kernel Makefiles are designed to be run with GNU Make.  The Makefiles
 use only the documented features of GNU Make, but they do use many
@@ -1225,14 +1292,14 @@ time the left-hand side is used.
 There are some cases where "=" is appropriate.  Usually, though, ":="
 is the right choice.
 
-=== 9 Credits
+=== 10 Credits
 
 Original version made by Michael Elizabeth Chastain, <mailto:mec@shout.net>
 Updates by Kai Germaschewski <kai@tp1.ruhr-uni-bochum.de>
 Updates by Sam Ravnborg <sam@ravnborg.org>
 Language QA by Jan Engelhardt <jengelh@gmx.de>
 
-=== 10 TODO
+=== 11 TODO
 
 - Describe how kbuild supports shipped files with _shipped.
 - Generating offset header files.
diff --git a/Documentation/sparse.txt b/Documentation/sparse.txt
index 42f43fa59f24..34c76a55bc04 100644
--- a/Documentation/sparse.txt
+++ b/Documentation/sparse.txt
@@ -42,6 +42,14 @@ sure that bitwise types don't get mixed up (little-endian vs big-endian
 vs cpu-endian vs whatever), and there the constant "0" really _is_
 special.
 
+__bitwise__ - to be used for relatively compact stuff (gfp_t, etc.) that
+is mostly warning-free and is supposed to stay that way.  Warnings will
+be generated without __CHECK_ENDIAN__.
+
+__bitwise - noisy stuff; in particular, __le*/__be* are that.  We really
+don't want to drown in noise unless we'd explicitly asked for it.
+
+
 Getting sparse
 ~~~~~~~~~~~~~~
 
diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index a34d55b65441..df38ef046f8d 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -95,7 +95,7 @@ of struct cmsghdr structures with appended data.
 
 There is only one file in this directory.
 unix_dgram_qlen limits the max number of datagrams queued in Unix domain
-socket's buffer. It will not take effect unless PF_UNIX flag is spicified.
+socket's buffer. It will not take effect unless PF_UNIX flag is specified.
 
 
 3. /proc/sys/net/ipv4 - IPV4 settings
diff --git a/Documentation/tomoyo.txt b/Documentation/tomoyo.txt
new file mode 100644
index 000000000000..b3a232cae7f8
--- /dev/null
+++ b/Documentation/tomoyo.txt
@@ -0,0 +1,55 @@
+--- What is TOMOYO? ---
+
+TOMOYO is a name-based MAC extension (LSM module) for the Linux kernel.
+
+LiveCD-based tutorials are available at
+http://tomoyo.sourceforge.jp/en/1.6.x/1st-step/ubuntu8.04-live/
+http://tomoyo.sourceforge.jp/en/1.6.x/1st-step/centos5-live/ .
+Though these tutorials use non-LSM version of TOMOYO, they are useful for you
+to know what TOMOYO is.
+
+--- How to enable TOMOYO? ---
+
+Build the kernel with CONFIG_SECURITY_TOMOYO=y and pass "security=tomoyo" on
+kernel's command line.
+
+Please see http://tomoyo.sourceforge.jp/en/2.2.x/ for details.
+
+--- Where is documentation? ---
+
+User <-> Kernel interface documentation is available at
+http://tomoyo.sourceforge.jp/en/2.2.x/policy-reference.html .
+
+Materials we prepared for seminars and symposiums are available at
+http://sourceforge.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
+Below lists are chosen from three aspects.
+
+What is TOMOYO?
+  TOMOYO Linux Overview
+    http://sourceforge.jp/projects/tomoyo/docs/lca2009-takeda.pdf
+  TOMOYO Linux: pragmatic and manageable security for Linux
+    http://sourceforge.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
+  TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
+    http://sourceforge.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
+
+What can TOMOYO do?
+  Deep inside TOMOYO Linux
+    http://sourceforge.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
+  The role of "pathname based access control" in security.
+    http://sourceforge.jp/projects/tomoyo/docs/lfj2008-bof.pdf
+
+History of TOMOYO?
+  Realities of Mainlining
+    http://sourceforge.jp/projects/tomoyo/docs/lfj2008.pdf
+
+--- What is future plan? ---
+
+We believe that inode based security and name based security are complementary
+and both should be used together. But unfortunately, so far, we cannot enable
+multiple LSM modules at the same time. We feel sorry that you have to give up
+SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
+
+We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
+version of TOMOYO, available at http://tomoyo.sourceforge.jp/en/1.6.x/ .
+LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
+to port non-LSM version's functionalities to LSM versions.
diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
index 2131b00b63f6..2f77ced35df7 100644
--- a/Documentation/vm/00-INDEX
+++ b/Documentation/vm/00-INDEX
@@ -1,5 +1,7 @@
 00-INDEX
         - this file.
+active_mm.txt
+        - An explanation from Linus about tsk->active_mm vs tsk->mm.
 balance
         - various information on memory balancing.
 hugetlbpage.txt
diff --git a/Documentation/vm/active_mm.txt b/Documentation/vm/active_mm.txt
new file mode 100644
index 000000000000..4ee1f643d897
--- /dev/null
+++ b/Documentation/vm/active_mm.txt
@@ -0,0 +1,83 @@
+List:       linux-kernel
+Subject:    Re: active_mm
+From:       Linus Torvalds <torvalds () transmeta ! com>
+Date:       1999-07-30 21:36:24
+
+Cc'd to linux-kernel, because I don't write explanations all that often,
+and when I do I feel better about more people reading them.
+
+On Fri, 30 Jul 1999, David Mosberger wrote:
+>
+> Is there a brief description someplace on how "mm" vs. "active_mm" in
+> the task_struct are supposed to be used?  (My apologies if this was
+> discussed on the mailing lists---I just returned from vacation and
+> wasn't able to follow linux-kernel for a while).
+
+Basically, the new setup is:
+
+ - we have "real address spaces" and "anonymous address spaces". The
+   difference is that an anonymous address space doesn't care about the
+   user-level page tables at all, so when we do a context switch into an
+   anonymous address space we just leave the previous address space
+   active.
+
+   The obvious use for a "anonymous address space" is any thread that
+   doesn't need any user mappings - all kernel threads basically fall into
+   this category, but even "real" threads can temporarily say that for
+   some amount of time they are not going to be interested in user space,
+   and that the scheduler might as well try to avoid wasting time on
+   switching the VM state around. Currently only the old-style bdflush
+   sync does that.
+
+ - "tsk->mm" points to the "real address space". For an anonymous process,
+   tsk->mm will be NULL, for the logical reason that an anonymous process
+   really doesn't _have_ a real address space at all.
+
+ - however, we obviously need to keep track of which address space we
+   "stole" for such an anonymous user. For that, we have "tsk->active_mm",
+   which shows what the currently active address space is.
+
+   The rule is that for a process with a real address space (ie tsk->mm is
+   non-NULL) the active_mm obviously always has to be the same as the real
+   one.
+
+   For a anonymous process, tsk->mm == NULL, and tsk->active_mm is the
+   "borrowed" mm while the anonymous process is running. When the
+   anonymous process gets scheduled away, the borrowed address space is
+   returned and cleared.
+
+To support all that, the "struct mm_struct" now has two counters: a
+"mm_users" counter that is how many "real address space users" there are,
+and a "mm_count" counter that is the number of "lazy" users (ie anonymous
+users) plus one if there are any real users.
+
+Usually there is at least one real user, but it could be that the real
+user exited on another CPU while a lazy user was still active, so you do
+actually get cases where you have a address space that is _only_ used by
+lazy users. That is often a short-lived state, because once that thread
+gets scheduled away in favour of a real thread, the "zombie" mm gets
+released because "mm_users" becomes zero.
+
+Also, a new rule is that _nobody_ ever has "init_mm" as a real MM any
+more. "init_mm" should be considered just a "lazy context when no other
+context is available", and in fact it is mainly used just at bootup when
+no real VM has yet been created. So code that used to check
+
+        if (current->mm == &init_mm)
+
+should generally just do
+
+        if (!current->mm)
+
+instead (which makes more sense anyway - the test is basically one of "do
+we have a user context", and is generally done by the page fault handler
+and things like that).
+
+Anyway, I put a pre-patch-2.3.13-1 on ftp.kernel.org just a moment ago,
+because it slightly changes the interfaces to accomodate the alpha (who
+would have thought it, but the alpha actually ends up having one of the
+ugliest context switch codes - unlike the other architectures where the MM
+and register state is separate, the alpha PALcode joins the two, and you
+need to switch both together).
+
+(From http://marc.info/?l=linux-kernel&m=93337278602211&w=2)
diff --git a/Documentation/vm/unevictable-lru.txt b/Documentation/vm/unevictable-lru.txt
index 0706a7282a8c..2d70d0d95108 100644
--- a/Documentation/vm/unevictable-lru.txt
+++ b/Documentation/vm/unevictable-lru.txt
@@ -1,588 +1,691 @@
-
-This document describes the Linux memory management "Unevictable LRU"
-infrastructure and the use of this infrastructure to manage several types
-of "unevictable" pages.  The document attempts to provide the overall
-rationale behind this mechanism and the rationale for some of the design
-decisions that drove the implementation.  The latter design rationale is
-discussed in the context of an implementation description.  Admittedly, one
-can obtain the implementation details--the "what does it do?"--by reading the
-code.  One hopes that the descriptions below add value by provide the answer
-to "why does it do that?".
-
-Unevictable LRU Infrastructure:
-
-The Unevictable LRU adds an additional LRU list to track unevictable pages
-and to hide these pages from vmscan.  This mechanism is based on a patch by
-Larry Woodman of Red Hat to address several scalability problems with page
+                        ==============================
+                        UNEVICTABLE LRU INFRASTRUCTURE
+                        ==============================
+
+========
+CONTENTS
+========
+
+ (*) The Unevictable LRU
+
+     - The unevictable page list.
+     - Memory control group interaction.
+     - Marking address spaces unevictable.
+     - Detecting Unevictable Pages.
+     - vmscan's handling of unevictable pages.
+
+ (*) mlock()'d pages.
+
+     - History.
+     - Basic management.
+     - mlock()/mlockall() system call handling.
+     - Filtering special vmas.
+     - munlock()/munlockall() system call handling.
+     - Migrating mlocked pages.
+     - mmap(MAP_LOCKED) system call handling.
+     - munmap()/exit()/exec() system call handling.
+     - try_to_unmap().
+     - try_to_munlock() reverse map scan.
+     - Page reclaim in shrink_*_list().
+
+
+============
+INTRODUCTION
+============
+
+This document describes the Linux memory manager's "Unevictable LRU"
+infrastructure and the use of this to manage several types of "unevictable"
+pages.
+
+The document attempts to provide the overall rationale behind this mechanism
+and the rationale for some of the design decisions that drove the
+implementation.  The latter design rationale is discussed in the context of an
+implementation description.  Admittedly, one can obtain the implementation
+details - the "what does it do?" - by reading the code.  One hopes that the
+descriptions below add value by provide the answer to "why does it do that?".
+
+
+===================
+THE UNEVICTABLE LRU
+===================
+
+The Unevictable LRU facility adds an additional LRU list to track unevictable
+pages and to hide these pages from vmscan.  This mechanism is based on a patch
+by Larry Woodman of Red Hat to address several scalability problems with page
 reclaim in Linux.  The problems have been observed at customer sites on large
-memory x86_64 systems.  For example, a non-numal x86_64 platform with 128GB
-of main memory will have over 32 million 4k pages in a single zone.  When a
-large fraction of these pages are not evictable for any reason [see below],
-vmscan will spend a lot of time scanning the LRU lists looking for the small
-fraction of pages that are evictable.  This can result in a situation where
-all cpus are spending 100% of their time in vmscan for hours or days on end,
-with the system completely unresponsive.
-
-The Unevictable LRU infrastructure addresses the following classes of
-unevictable pages:
-
-+ page owned by ramfs
-+ page mapped into SHM_LOCKed shared memory regions
-+ page mapped into VM_LOCKED [mlock()ed] vmas
-
-The infrastructure might be able to handle other conditions that make pages
+memory x86_64 systems.
+
+To illustrate this with an example, a non-NUMA x86_64 platform with 128GB of
+main memory will have over 32 million 4k pages in a single zone.  When a large
+fraction of these pages are not evictable for any reason [see below], vmscan
+will spend a lot of time scanning the LRU lists looking for the small fraction
+of pages that are evictable.  This can result in a situation where all CPUs are
+spending 100% of their time in vmscan for hours or days on end, with the system
+completely unresponsive.
+
+The unevictable list addresses the following classes of unevictable pages:
+
+ (*) Those owned by ramfs.
+
+ (*) Those mapped into SHM_LOCK'd shared memory regions.
+
+ (*) Those mapped into VM_LOCKED [mlock()ed] VMAs.
+
+The infrastructure may also be able to handle other conditions that make pages
 unevictable, either by definition or by circumstance, in the future.
 
 
-The Unevictable LRU List
+THE UNEVICTABLE PAGE LIST
+-------------------------
 
 The Unevictable LRU infrastructure consists of an additional, per-zone, LRU list
 called the "unevictable" list and an associated page flag, PG_unevictable, to
-indicate that the page is being managed on the unevictable list.  The
-PG_unevictable flag is analogous to, and mutually exclusive with, the PG_active
-flag in that it indicates on which LRU list a page resides when PG_lru is set.
-The unevictable LRU list is source configurable based on the UNEVICTABLE_LRU
-Kconfig option.
+indicate that the page is being managed on the unevictable list.
+
+The PG_unevictable flag is analogous to, and mutually exclusive with, the
+PG_active flag in that it indicates on which LRU list a page resides when
+PG_lru is set.  The unevictable list is compile-time configurable based on the
+UNEVICTABLE_LRU Kconfig option.
 
 The Unevictable LRU infrastructure maintains unevictable pages on an additional
 LRU list for a few reasons:
 
-1) We get to "treat unevictable pages just like we treat other pages in the
-   system, which means we get to use the same code to manipulate them, the
-   same code to isolate them (for migrate, etc.), the same code to keep track
-   of the statistics, etc..." [Rik van Riel]
+ (1) We get to "treat unevictable pages just like we treat other pages in the
+     system - which means we get to use the same code to manipulate them, the
+     same code to isolate them (for migrate, etc.), the same code to keep track
+     of the statistics, etc..." [Rik van Riel]
+
+ (2) We want to be able to migrate unevictable pages between nodes for memory
+     defragmentation, workload management and memory hotplug.  The linux kernel
+     can only migrate pages that it can successfully isolate from the LRU
+     lists.  If we were to maintain pages elsewhere than on an LRU-like list,
+     where they can be found by isolate_lru_page(), we would prevent their
+     migration, unless we reworked migration code to find the unevictable pages
+     itself.
 
-2) We want to be able to migrate unevictable pages between nodes--for memory
-   defragmentation, workload management and memory hotplug.  The linux kernel
-   can only migrate pages that it can successfully isolate from the lru lists.
-   If we were to maintain pages elsewise than on an lru-like list, where they
-   can be found by isolate_lru_page(), we would prevent their migration, unless
-   we reworked migration code to find the unevictable pages.
 
+The unevictable list does not differentiate between file-backed and anonymous,
+swap-backed pages.  This differentiation is only important while the pages are,
+in fact, evictable.
 
-The unevictable LRU list does not differentiate between file backed and swap
-backed [anon] pages.  This differentiation is only important while the pages
-are, in fact, evictable.
+The unevictable list benefits from the "arrayification" of the per-zone LRU
+lists and statistics originally proposed and posted by Christoph Lameter.
 
-The unevictable LRU list benefits from the "arrayification" of the per-zone
-LRU lists and statistics originally proposed and posted by Christoph Lameter.
+The unevictable list does not use the LRU pagevec mechanism. Rather,
+unevictable pages are placed directly on the page's zone's unevictable list
+under the zone lru_lock.  This allows us to prevent the stranding of pages on
+the unevictable list when one task has the page isolated from the LRU and other
+tasks are changing the "evictability" state of the page.
 
-The unevictable list does not use the lru pagevec mechanism. Rather,
-unevictable pages are placed directly on the page's zone's unevictable
-list under the zone lru_lock.  The reason for this is to prevent stranding
-of pages on the unevictable list when one task has the page isolated from the
-lru and other tasks are changing the "evictability" state of the page.
 
+MEMORY CONTROL GROUP INTERACTION
+--------------------------------
 
-Unevictable LRU and Memory Controller Interaction
+The unevictable LRU facility interacts with the memory control group [aka
+memory controller; see Documentation/cgroups/memory.txt] by extending the
+lru_list enum.
+
+The memory controller data structure automatically gets a per-zone unevictable
+list as a result of the "arrayification" of the per-zone LRU lists (one per
+lru_list enum element).  The memory controller tracks the movement of pages to
+and from the unevictable list.
 
-The memory controller data structure automatically gets a per zone unevictable
-lru list as a result of the "arrayification" of the per-zone LRU lists.  The
-memory controller tracks the movement of pages to and from the unevictable list.
 When a memory control group comes under memory pressure, the controller will
 not attempt to reclaim pages on the unevictable list.  This has a couple of
-effects.  Because the pages are "hidden" from reclaim on the unevictable list,
-the reclaim process can be more efficient, dealing only with pages that have
-a chance of being reclaimed.  On the other hand, if too many of the pages
-charged to the control group are unevictable, the evictable portion of the
-working set of the tasks in the control group may not fit into the available
-memory.  This can cause the control group to thrash or to oom-kill tasks.
-
-
-Unevictable LRU:  Detecting Unevictable Pages
-
-The function page_evictable(page, vma) in vmscan.c determines whether a
-page is evictable or not.  For ramfs pages and pages in SHM_LOCKed regions,
-page_evictable() tests a new address space flag, AS_UNEVICTABLE, in the page's
-address space using a wrapper function.  Wrapper functions are used to set,
-clear and test the flag to reduce the requirement for #ifdef's throughout the
-source code.  AS_UNEVICTABLE is set on ramfs inode/mapping when it is created.
-This flag remains for the life of the inode.
-
-For shared memory regions, AS_UNEVICTABLE is set when an application
-successfully SHM_LOCKs the region and is removed when the region is
-SHM_UNLOCKed.  Note that shmctl(SHM_LOCK, ...) does not populate the page
-tables for the region as does, for example, mlock().   So, we make no special
-effort to push any pages in the SHM_LOCKed region to the unevictable list.
-Vmscan will do this when/if it encounters the pages during reclaim.  On
-SHM_UNLOCK, shmctl() scans the pages in the region and "rescues" them from the
-unevictable list if no other condition keeps them unevictable.  If a SHM_LOCKed
-region is destroyed, the pages are also "rescued" from the unevictable list in
-the process of freeing them.
-
-page_evictable() detects mlock()ed pages by testing an additional page flag,
-PG_mlocked via the PageMlocked() wrapper.  If the page is NOT mlocked, and a
-non-NULL vma is supplied, page_evictable() will check whether the vma is
+effects:
+
+ (1) Because the pages are "hidden" from reclaim on the unevictable list, the
+     reclaim process can be more efficient, dealing only with pages that have a
+     chance of being reclaimed.
+
+ (2) On the other hand, if too many of the pages charged to the control group
+     are unevictable, the evictable portion of the working set of the tasks in
+     the control group may not fit into the available memory.  This can cause
+     the control group to thrash or to OOM-kill tasks.
+
+
+MARKING ADDRESS SPACES UNEVICTABLE
+----------------------------------
+
+For facilities such as ramfs none of the pages attached to the address space
+may be evicted.  To prevent eviction of any such pages, the AS_UNEVICTABLE
+address space flag is provided, and this can be manipulated by a filesystem
+using a number of wrapper functions:
+
+ (*) void mapping_set_unevictable(struct address_space *mapping);
+
+        Mark the address space as being completely unevictable.
+
+ (*) void mapping_clear_unevictable(struct address_space *mapping);
+
+        Mark the address space as being evictable.
+
+ (*) int mapping_unevictable(struct address_space *mapping);
+
+        Query the address space, and return true if it is completely
+        unevictable.
+
+These are currently used in two places in the kernel:
+
+ (1) By ramfs to mark the address spaces of its inodes when they are created,
+     and this mark remains for the life of the inode.
+
+ (2) By SYSV SHM to mark SHM_LOCK'd address spaces until SHM_UNLOCK is called.
+
+     Note that SHM_LOCK is not required to page in the locked pages if they're
+     swapped out; the application must touch the pages manually if it wants to
+     ensure they're in memory.
+
+
+DETECTING UNEVICTABLE PAGES
+---------------------------
+
+The function page_evictable() in vmscan.c determines whether a page is
+evictable or not using the query function outlined above [see section "Marking
+address spaces unevictable"] to check the AS_UNEVICTABLE flag.
+
+For address spaces that are so marked after being populated (as SHM regions
+might be), the lock action (eg: SHM_LOCK) can be lazy, and need not populate
+the page tables for the region as does, for example, mlock(), nor need it make
+any special effort to push any pages in the SHM_LOCK'd area to the unevictable
+list.  Instead, vmscan will do this if and when it encounters the pages during
+a reclamation scan.
+
+On an unlock action (such as SHM_UNLOCK), the unlocker (eg: shmctl()) must scan
+the pages in the region and "rescue" them from the unevictable list if no other
+condition is keeping them unevictable.  If an unevictable region is destroyed,
+the pages are also "rescued" from the unevictable list in the process of
+freeing them.
+
+page_evictable() also checks for mlocked pages by testing an additional page
+flag, PG_mlocked (as wrapped by PageMlocked()).  If the page is NOT mlocked,
+and a non-NULL VMA is supplied, page_evictable() will check whether the VMA is
 VM_LOCKED via is_mlocked_vma().  is_mlocked_vma() will SetPageMlocked() and
 update the appropriate statistics if the vma is VM_LOCKED.  This method allows
 efficient "culling" of pages in the fault path that are being faulted in to
-VM_LOCKED vmas.
+VM_LOCKED VMAs.
 
 
-Unevictable Pages and Vmscan [shrink_*_list()]
+VMSCAN'S HANDLING OF UNEVICTABLE PAGES
+--------------------------------------
 
 If unevictable pages are culled in the fault path, or moved to the unevictable
-list at mlock() or mmap() time, vmscan will never encounter the pages until
-they have become evictable again, for example, via munlock() and have been
-"rescued" from the unevictable list.  However, there may be situations where we
-decide, for the sake of expediency, to leave a unevictable page on one of the
-regular active/inactive LRU lists for vmscan to deal with.  Vmscan checks for
-such pages in all of the shrink_{active|inactive|page}_list() functions and
-will "cull" such pages that it encounters--that is, it diverts those pages to
-the unevictable list for the zone being scanned.
-
-There may be situations where a page is mapped into a VM_LOCKED vma, but the
-page is not marked as PageMlocked.  Such pages will make it all the way to
+list at mlock() or mmap() time, vmscan will not encounter the pages until they
+have become evictable again (via munlock() for example) and have been "rescued"
+from the unevictable list.  However, there may be situations where we decide,
+for the sake of expediency, to leave a unevictable page on one of the regular
+active/inactive LRU lists for vmscan to deal with.  vmscan checks for such
+pages in all of the shrink_{active|inactive|page}_list() functions and will
+"cull" such pages that it encounters: that is, it diverts those pages to the
+unevictable list for the zone being scanned.
+
+There may be situations where a page is mapped into a VM_LOCKED VMA, but the
+page is not marked as PG_mlocked.  Such pages will make it all the way to
 shrink_page_list() where they will be detected when vmscan walks the reverse
-map in try_to_unmap().  If try_to_unmap() returns SWAP_MLOCK, shrink_page_list()
-will cull the page at that point.
+map in try_to_unmap().  If try_to_unmap() returns SWAP_MLOCK,
+shrink_page_list() will cull the page at that point.
 
-To "cull" an unevictable page, vmscan simply puts the page back on the lru
-list using putback_lru_page()--the inverse operation to isolate_lru_page()--
-after dropping the page lock.  Because the condition which makes the page
-unevictable may change once the page is unlocked, putback_lru_page() will
-recheck the unevictable state of a page that it places on the unevictable lru
-list.  If the page has become unevictable, putback_lru_page() removes it from
-the list and retries, including the page_unevictable() test.  Because such a
-race is a rare event and movement of pages onto the unevictable list should be
-rare, these extra evictabilty checks should not occur in the majority of calls
-to putback_lru_page().
+To "cull" an unevictable page, vmscan simply puts the page back on the LRU list
+using putback_lru_page() - the inverse operation to isolate_lru_page() - after
+dropping the page lock.  Because the condition which makes the page unevictable
+may change once the page is unlocked, putback_lru_page() will recheck the
+unevictable state of a page that it places on the unevictable list.  If the
+page has become unevictable, putback_lru_page() removes it from the list and
+retries, including the page_unevictable() test.  Because such a race is a rare
+event and movement of pages onto the unevictable list should be rare, these
+extra evictabilty checks should not occur in the majority of calls to
+putback_lru_page().
 
 
-Mlocked Page:  Prior Work
+=============
+MLOCKED PAGES
+=============
 
-The "Unevictable Mlocked Pages" infrastructure is based on work originally
+The unevictable page list is also useful for mlock(), in addition to ramfs and
+SYSV SHM.  Note that mlock() is only available in CONFIG_MMU=y situations; in
+NOMMU situations, all mappings are effectively mlocked.
+
+
+HISTORY
+-------
+
+The "Unevictable mlocked Pages" infrastructure is based on work originally
 posted by Nick Piggin in an RFC patch entitled "mm: mlocked pages off LRU".
-Nick posted his patch as an alternative to a patch posted by Christoph
-Lameter to achieve the same objective--hiding mlocked pages from vmscan.
-In Nick's patch, he used one of the struct page lru list link fields as a count
-of VM_LOCKED vmas that map the page.  This use of the link field for a count
-prevented the management of the pages on an LRU list.  Thus, mlocked pages were
-not migratable as isolate_lru_page() could not find them and the lru list link
-field was not available to the migration subsystem.  Nick resolved this by
-putting mlocked pages back on the lru list before attempting to isolate them,
-thus abandoning the count of VM_LOCKED vmas.  When Nick's patch was integrated
-with the Unevictable LRU work, the count was replaced by walking the reverse
-map to determine whether any VM_LOCKED vmas mapped the page.  More on this
-below.
-
-
-Mlocked Pages:  Basic Management
-
-Mlocked pages--pages mapped into a VM_LOCKED vma--represent one class of
-unevictable pages.  When such a page has been "noticed" by the memory
-management subsystem, the page is marked with the PG_mlocked [PageMlocked()]
-flag.  A PageMlocked() page will be placed on the unevictable LRU list when
-it is added to the LRU.   Pages can be "noticed" by memory management in
-several places:
-
-1) in the mlock()/mlockall() system call handlers.
-2) in the mmap() system call handler when mmap()ing a region with the
-   MAP_LOCKED flag, or mmap()ing a region in a task that has called
-   mlockall() with the MCL_FUTURE flag.  Both of these conditions result
-   in the VM_LOCKED flag being set for the vma.
-3) in the fault path, if mlocked pages are "culled" in the fault path,
-   and when a VM_LOCKED stack segment is expanded.
-4) as mentioned above, in vmscan:shrink_page_list() when attempting to
-   reclaim a page in a VM_LOCKED vma via try_to_unmap().
-
-Mlocked pages become unlocked and rescued from the unevictable list when:
-
-1) mapped in a range unlocked via the munlock()/munlockall() system calls.
-2) munmapped() out of the last VM_LOCKED vma that maps the page, including
-   unmapping at task exit.
-3) when the page is truncated from the last VM_LOCKED vma of an mmap()ed file.
-4) before a page is COWed in a VM_LOCKED vma.
-
-
-Mlocked Pages:  mlock()/mlockall() System Call Handling
+Nick posted his patch as an alternative to a patch posted by Christoph Lameter
+to achieve the same objective: hiding mlocked pages from vmscan.
+
+In Nick's patch, he used one of the struct page LRU list link fields as a count
+of VM_LOCKED VMAs that map the page.  This use of the link field for a count
+prevented the management of the pages on an LRU list, and thus mlocked pages
+were not migratable as isolate_lru_page() could not find them, and the LRU list
+link field was not available to the migration subsystem.
+
+Nick resolved this by putting mlocked pages back on the lru list before
+attempting to isolate them, thus abandoning the count of VM_LOCKED VMAs.  When
+Nick's patch was integrated with the Unevictable LRU work, the count was
+replaced by walking the reverse map to determine whether any VM_LOCKED VMAs
+mapped the page.  More on this below.
+
+
+BASIC MANAGEMENT
+----------------
+
+mlocked pages - pages mapped into a VM_LOCKED VMA - are a class of unevictable
+pages.  When such a page has been "noticed" by the memory management subsystem,
+the page is marked with the PG_mlocked flag.  This can be manipulated using the
+PageMlocked() functions.
+
+A PG_mlocked page will be placed on the unevictable list when it is added to
+the LRU.  Such pages can be "noticed" by memory management in several places:
+
+ (1) in the mlock()/mlockall() system call handlers;
+
+ (2) in the mmap() system call handler when mmapping a region with the
+     MAP_LOCKED flag;
+
+ (3) mmapping a region in a task that has called mlockall() with the MCL_FUTURE
+     flag
+
+ (4) in the fault path, if mlocked pages are "culled" in the fault path,
+     and when a VM_LOCKED stack segment is expanded; or
+
+ (5) as mentioned above, in vmscan:shrink_page_list() when attempting to
+     reclaim a page in a VM_LOCKED VMA via try_to_unmap()
+
+all of which result in the VM_LOCKED flag being set for the VMA if it doesn't
+already have it set.
+
+mlocked pages become unlocked and rescued from the unevictable list when:
+
+ (1) mapped in a range unlocked via the munlock()/munlockall() system calls;
+
+ (2) munmap()'d out of the last VM_LOCKED VMA that maps the page, including
+     unmapping at task exit;
+
+ (3) when the page is truncated from the last VM_LOCKED VMA of an mmapped file;
+     or
+
+ (4) before a page is COW'd in a VM_LOCKED VMA.
+
+
+mlock()/mlockall() SYSTEM CALL HANDLING
+---------------------------------------
 
 Both [do_]mlock() and [do_]mlockall() system call handlers call mlock_fixup()
-for each vma in the range specified by the call.  In the case of mlockall(),
+for each VMA in the range specified by the call.  In the case of mlockall(),
 this is the entire active address space of the task.  Note that mlock_fixup()
-is used for both mlock()ing and munlock()ing a range of memory.  A call to
-mlock() an already VM_LOCKED vma, or to munlock() a vma that is not VM_LOCKED
-is treated as a no-op--mlock_fixup() simply returns.
-
-If the vma passes some filtering described in "Mlocked Pages:  Filtering Vmas"
-below, mlock_fixup() will attempt to merge the vma with its neighbors or split
-off a subset of the vma if the range does not cover the entire vma.  Once the
-vma has been merged or split or neither, mlock_fixup() will call
-__mlock_vma_pages_range() to fault in the pages via get_user_pages() and
-to mark the pages as mlocked via mlock_vma_page().
-
-Note that the vma being mlocked might be mapped with PROT_NONE.  In this case,
-get_user_pages() will be unable to fault in the pages.  That's OK.  If pages
-do end up getting faulted into this VM_LOCKED vma, we'll handle them in the
+is used for both mlocking and munlocking a range of memory.  A call to mlock()
+an already VM_LOCKED VMA, or to munlock() a VMA that is not VM_LOCKED is
+treated as a no-op, and mlock_fixup() simply returns.
+
+If the VMA passes some filtering as described in "Filtering Special Vmas"
+below, mlock_fixup() will attempt to merge the VMA with its neighbors or split
+off a subset of the VMA if the range does not cover the entire VMA.  Once the
+VMA has been merged or split or neither, mlock_fixup() will call
+__mlock_vma_pages_range() to fault in the pages via get_user_pages() and to
+mark the pages as mlocked via mlock_vma_page().
+
+Note that the VMA being mlocked might be mapped with PROT_NONE.  In this case,
+get_user_pages() will be unable to fault in the pages.  That's okay.  If pages
+do end up getting faulted into this VM_LOCKED VMA, we'll handle them in the
 fault path or in vmscan.
 
 Also note that a page returned by get_user_pages() could be truncated or
-migrated out from under us, while we're trying to mlock it.  To detect
-this, __mlock_vma_pages_range() tests the page_mapping after acquiring
-the page lock.  If the page is still associated with its mapping, we'll
-go ahead and call mlock_vma_page().  If the mapping is gone, we just
-unlock the page and move on.  Worse case, this results in page mapped
-in a VM_LOCKED vma remaining on a normal LRU list without being
-PageMlocked().  Again, vmscan will detect and cull such pages.
-
-mlock_vma_page(), called with the page locked [N.B., not "mlocked"], will
-TestSetPageMlocked() for each page returned by get_user_pages().  We use
-TestSetPageMlocked() because the page might already be mlocked by another
-task/vma and we don't want to do extra work.  We especially do not want to
-count an mlocked page more than once in the statistics.  If the page was
-already mlocked, mlock_vma_page() is done.
+migrated out from under us, while we're trying to mlock it.  To detect this,
+__mlock_vma_pages_range() checks page_mapping() after acquiring the page lock.
+If the page is still associated with its mapping, we'll go ahead and call
+mlock_vma_page().  If the mapping is gone, we just unlock the page and move on.
+In the worst case, this will result in a page mapped in a VM_LOCKED VMA
+remaining on a normal LRU list without being PageMlocked().  Again, vmscan will
+detect and cull such pages.
+
+mlock_vma_page() will call TestSetPageMlocked() for each page returned by
+get_user_pages().  We use TestSetPageMlocked() because the page might already
+be mlocked by another task/VMA and we don't want to do extra work.  We
+especially do not want to count an mlocked page more than once in the
+statistics.  If the page was already mlocked, mlock_vma_page() need do nothing
+more.
 
 If the page was NOT already mlocked, mlock_vma_page() attempts to isolate the
 page from the LRU, as it is likely on the appropriate active or inactive list
-at that time.  If the isolate_lru_page() succeeds, mlock_vma_page() will
-putback the page--putback_lru_page()--which will notice that the page is now
-mlocked and divert the page to the zone's unevictable LRU list.  If
+at that time.  If the isolate_lru_page() succeeds, mlock_vma_page() will put
+back the page - by calling putback_lru_page() - which will notice that the page
+is now mlocked and divert the page to the zone's unevictable list.  If
 mlock_vma_page() is unable to isolate the page from the LRU, vmscan will handle
-it later if/when it attempts to reclaim the page.
+it later if and when it attempts to reclaim the page.
 
 
-Mlocked Pages:  Filtering Special Vmas
+FILTERING SPECIAL VMAS
+----------------------
 
-mlock_fixup() filters several classes of "special" vmas:
+mlock_fixup() filters several classes of "special" VMAs:
 
-1) vmas with VM_IO|VM_PFNMAP set are skipped entirely.  The pages behind
+1) VMAs with VM_IO or VM_PFNMAP set are skipped entirely.  The pages behind
    these mappings are inherently pinned, so we don't need to mark them as
-   mlocked.  In any case, most of the pages have no struct page in which to
-   so mark the page.  Because of this, get_user_pages() will fail for these
-   vmas, so there is no sense in attempting to visit them.
-
-2) vmas mapping hugetlbfs page are already effectively pinned into memory.
-   We don't need nor want to mlock() these pages.  However, to preserve the
-   prior behavior of mlock()--before the unevictable/mlock changes--
-   mlock_fixup() will call make_pages_present() in the hugetlbfs vma range
-   to allocate the huge pages and populate the ptes.
-
-3) vmas with VM_DONTEXPAND|VM_RESERVED are generally user space mappings of
-   kernel pages, such as the vdso page, relay channel pages, etc.  These pages
+   mlocked.  In any case, most of the pages have no struct page in which to so
+   mark the page.  Because of this, get_user_pages() will fail for these VMAs,
+   so there is no sense in attempting to visit them.
+
+2) VMAs mapping hugetlbfs page are already effectively pinned into memory.  We
+   neither need nor want to mlock() these pages.  However, to preserve the
+   prior behavior of mlock() - before the unevictable/mlock changes -
+   mlock_fixup() will call make_pages_present() in the hugetlbfs VMA range to
+   allocate the huge pages and populate the ptes.
+
+3) VMAs with VM_DONTEXPAND or VM_RESERVED are generally userspace mappings of
+   kernel pages, such as the VDSO page, relay channel pages, etc.  These pages
    are inherently unevictable and are not managed on the LRU lists.
-   mlock_fixup() treats these vmas the same as hugetlbfs vmas.  It calls
+   mlock_fixup() treats these VMAs the same as hugetlbfs VMAs.  It calls
    make_pages_present() to populate the ptes.
 
-Note that for all of these special vmas, mlock_fixup() does not set the
+Note that for all of these special VMAs, mlock_fixup() does not set the
 VM_LOCKED flag.  Therefore, we won't have to deal with them later during
-munlock() or munmap()--for example, at task exit.  Neither does mlock_fixup()
-account these vmas against the task's "locked_vm".
-
-Mlocked Pages:  Downgrading the Mmap Semaphore.
-
-mlock_fixup() must be called with the mmap semaphore held for write, because
-it may have to merge or split vmas.  However, mlocking a large region of
-memory can take a long time--especially if vmscan must reclaim pages to
-satisfy the regions requirements.  Faulting in a large region with the mmap
-semaphore held for write can hold off other faults on the address space, in
-the case of a multi-threaded task.  It can also hold off scans of the task's
-address space via /proc.  While testing under heavy load, it was observed that
-the ps(1) command could be held off for many minutes while a large segment was
-mlock()ed down.
-
-To address this issue, and to make the system more responsive during mlock()ing
-of large segments, mlock_fixup() downgrades the mmap semaphore to read mode
-during the call to __mlock_vma_pages_range().  This works fine.  However, the
-callers of mlock_fixup() expect the semaphore to be returned in write mode.
-So, mlock_fixup() "upgrades" the semphore to write mode.  Linux does not
-support an atomic upgrade_sem() call, so mlock_fixup() must drop the semaphore
-and reacquire it in write mode.  In a multi-threaded task, it is possible for
-the task memory map to change while the semaphore is dropped.  Therefore,
-mlock_fixup() looks up the vma at the range start address after reacquiring
-the semaphore in write mode and verifies that it still covers the original
-range.  If not, mlock_fixup() returns an error [-EAGAIN].  All callers of
-mlock_fixup() have been changed to deal with this new error condition.
-
-Note:  when munlocking a region, all of the pages should already be resident--
-unless we have racing threads mlocking() and munlocking() regions.  So,
-unlocking should not have to wait for page allocations nor faults  of any kind.
-Therefore mlock_fixup() does not downgrade the semaphore for munlock().
-
-
-Mlocked Pages:  munlock()/munlockall() System Call Handling
-
-The munlock() and munlockall() system calls are handled by the same functions--
-do_mlock[all]()--as the mlock() and mlockall() system calls with the unlock
-vs lock operation indicated by an argument.  So, these system calls are also
-handled by mlock_fixup().  Again, if called for an already munlock()ed vma,
-mlock_fixup() simply returns.  Because of the vma filtering discussed above,
-VM_LOCKED will not be set in any "special" vmas.  So, these vmas will be
+munlock(), munmap() or task exit.  Neither does mlock_fixup() account these
+VMAs against the task's "locked_vm".
+
+
+munlock()/munlockall() SYSTEM CALL HANDLING
+-------------------------------------------
+
+The munlock() and munlockall() system calls are handled by the same functions -
+do_mlock[all]() - as the mlock() and mlockall() system calls with the unlock vs
+lock operation indicated by an argument.  So, these system calls are also
+handled by mlock_fixup().  Again, if called for an already munlocked VMA,
+mlock_fixup() simply returns.  Because of the VMA filtering discussed above,
+VM_LOCKED will not be set in any "special" VMAs.  So, these VMAs will be
 ignored for munlock.
 
-If the vma is VM_LOCKED, mlock_fixup() again attempts to merge or split off
-the specified range.  The range is then munlocked via the function
-__mlock_vma_pages_range()--the same function used to mlock a vma range--
+If the VMA is VM_LOCKED, mlock_fixup() again attempts to merge or split off the
+specified range.  The range is then munlocked via the function
+__mlock_vma_pages_range() - the same function used to mlock a VMA range -
 passing a flag to indicate that munlock() is being performed.
 
-Because the vma access protections could have been changed to PROT_NONE after
+Because the VMA access protections could have been changed to PROT_NONE after
 faulting in and mlocking pages, get_user_pages() was unreliable for visiting
-these pages for munlocking.  Because we don't want to leave pages mlocked(),
+these pages for munlocking.  Because we don't want to leave pages mlocked,
 get_user_pages() was enhanced to accept a flag to ignore the permissions when
-fetching the pages--all of which should be resident as a result of previous
-mlock()ing.
+fetching the pages - all of which should be resident as a result of previous
+mlocking.
 
 For munlock(), __mlock_vma_pages_range() unlocks individual pages by calling
 munlock_vma_page().  munlock_vma_page() unconditionally clears the PG_mlocked
-flag using TestClearPageMlocked().  As with mlock_vma_page(), munlock_vma_page()
-use the Test*PageMlocked() function to handle the case where the page might
-have already been unlocked by another task.  If the page was mlocked,
-munlock_vma_page() updates that zone statistics for the number of mlocked
-pages.  Note, however, that at this point we haven't checked whether the page
-is mapped by other VM_LOCKED vmas.
-
-We can't call try_to_munlock(), the function that walks the reverse map to check
-for other VM_LOCKED vmas, without first isolating the page from the LRU.
+flag using TestClearPageMlocked().  As with mlock_vma_page(),
+munlock_vma_page() use the Test*PageMlocked() function to handle the case where
+the page might have already been unlocked by another task.  If the page was
+mlocked, munlock_vma_page() updates that zone statistics for the number of
+mlocked pages.  Note, however, that at this point we haven't checked whether
+the page is mapped by other VM_LOCKED VMAs.
+
+We can't call try_to_munlock(), the function that walks the reverse map to
+check for other VM_LOCKED VMAs, without first isolating the page from the LRU.
 try_to_munlock() is a variant of try_to_unmap() and thus requires that the page
-not be on an lru list.  [More on these below.]  However, the call to
-isolate_lru_page() could fail, in which case we couldn't try_to_munlock().
-So, we go ahead and clear PG_mlocked up front, as this might be the only chance
-we have.  If we can successfully isolate the page, we go ahead and
+not be on an LRU list [more on these below].  However, the call to
+isolate_lru_page() could fail, in which case we couldn't try_to_munlock().  So,
+we go ahead and clear PG_mlocked up front, as this might be the only chance we
+have.  If we can successfully isolate the page, we go ahead and
 try_to_munlock(), which will restore the PG_mlocked flag and update the zone
-page statistics if it finds another vma holding the page mlocked.  If we fail
+page statistics if it finds another VMA holding the page mlocked.  If we fail
 to isolate the page, we'll have left a potentially mlocked page on the LRU.
-This is fine, because we'll catch it later when/if vmscan tries to reclaim the
-page.  This should be relatively rare.
-
-Mlocked Pages:  Migrating Them...
-
-A page that is being migrated has been isolated from the lru lists and is
-held locked across unmapping of the page, updating the page's mapping
-[address_space] entry and copying the contents and state, until the
-page table entry has been replaced with an entry that refers to the new
-page.  Linux supports migration of mlocked pages and other unevictable
-pages.  This involves simply moving the PageMlocked and PageUnevictable states
-from the old page to the new page.
-
-Note that page migration can race with mlocking or munlocking of the same
-page.  This has been discussed from the mlock/munlock perspective in the
-respective sections above.  Both processes [migration, m[un]locking], hold
-the page locked.  This provides the first level of synchronization.  Page
-migration zeros out the page_mapping of the old page before unlocking it,
-so m[un]lock can skip these pages by testing the page mapping under page
-lock.
-
-When completing page migration, we place the new and old pages back onto the
-lru after dropping the page lock.  The "unneeded" page--old page on success,
-new page on failure--will be freed when the reference count held by the
-migration process is released.  To ensure that we don't strand pages on the
-unevictable list because of a race between munlock and migration, page
-migration uses the putback_lru_page() function to add migrated pages back to
-the lru.
-
-
-Mlocked Pages:  mmap(MAP_LOCKED) System Call Handling
+This is fine, because we'll catch it later if and if vmscan tries to reclaim
+the page.  This should be relatively rare.
+
+
+MIGRATING MLOCKED PAGES
+-----------------------
+
+A page that is being migrated has been isolated from the LRU lists and is held
+locked across unmapping of the page, updating the page's address space entry
+and copying the contents and state, until the page table entry has been
+replaced with an entry that refers to the new page.  Linux supports migration
+of mlocked pages and other unevictable pages.  This involves simply moving the
+PG_mlocked and PG_unevictable states from the old page to the new page.
+
+Note that page migration can race with mlocking or munlocking of the same page.
+This has been discussed from the mlock/munlock perspective in the respective
+sections above.  Both processes (migration and m[un]locking) hold the page
+locked.  This provides the first level of synchronization.  Page migration
+zeros out the page_mapping of the old page before unlocking it, so m[un]lock
+can skip these pages by testing the page mapping under page lock.
+
+To complete page migration, we place the new and old pages back onto the LRU
+after dropping the page lock.  The "unneeded" page - old page on success, new
+page on failure - will be freed when the reference count held by the migration
+process is released.  To ensure that we don't strand pages on the unevictable
+list because of a race between munlock and migration, page migration uses the
+putback_lru_page() function to add migrated pages back to the LRU.
+
+
+mmap(MAP_LOCKED) SYSTEM CALL HANDLING
+-------------------------------------
 
 In addition the the mlock()/mlockall() system calls, an application can request
-that a region of memory be mlocked using the MAP_LOCKED flag with the mmap()
+that a region of memory be mlocked supplying the MAP_LOCKED flag to the mmap()
 call.  Furthermore, any mmap() call or brk() call that expands the heap by a
 task that has previously called mlockall() with the MCL_FUTURE flag will result
-in the newly mapped memory being mlocked.  Before the unevictable/mlock changes,
-the kernel simply called make_pages_present() to allocate pages and populate
-the page table.
+in the newly mapped memory being mlocked.  Before the unevictable/mlock
+changes, the kernel simply called make_pages_present() to allocate pages and
+populate the page table.
 
 To mlock a range of memory under the unevictable/mlock infrastructure, the
 mmap() handler and task address space expansion functions call
 mlock_vma_pages_range() specifying the vma and the address range to mlock.
-mlock_vma_pages_range() filters vmas like mlock_fixup(), as described above in
-"Mlocked Pages:  Filtering Vmas".  It will clear the VM_LOCKED flag, which will
-have already been set by the caller, in filtered vmas.  Thus these vma's need
-not be visited for munlock when the region is unmapped.
+mlock_vma_pages_range() filters VMAs like mlock_fixup(), as described above in
+"Filtering Special VMAs".  It will clear the VM_LOCKED flag, which will have
+already been set by the caller, in filtered VMAs.  Thus these VMA's need not be
+visited for munlock when the region is unmapped.
 
-For "normal" vmas, mlock_vma_pages_range() calls __mlock_vma_pages_range() to
+For "normal" VMAs, mlock_vma_pages_range() calls __mlock_vma_pages_range() to
 fault/allocate the pages and mlock them.  Again, like mlock_fixup(),
 mlock_vma_pages_range() downgrades the mmap semaphore to read mode before
-attempting to fault/allocate and mlock the pages; and "upgrades" the semaphore
+attempting to fault/allocate and mlock the pages and "upgrades" the semaphore
 back to write mode before returning.
 
-The callers of mlock_vma_pages_range() will have already added the memory
-range to be mlocked to the task's "locked_vm".  To account for filtered vmas,
+The callers of mlock_vma_pages_range() will have already added the memory range
+to be mlocked to the task's "locked_vm".  To account for filtered VMAs,
 mlock_vma_pages_range() returns the number of pages NOT mlocked.  All of the
-callers then subtract a non-negative return value from the task's locked_vm.
-A negative return value represent an error--for example, from get_user_pages()
-attempting to fault in a vma with PROT_NONE access.  In this case, we leave
-the memory range accounted as locked_vm, as the protections could be changed
-later and pages allocated into that region.
+callers then subtract a non-negative return value from the task's locked_vm.  A
+negative return value represent an error - for example, from get_user_pages()
+attempting to fault in a VMA with PROT_NONE access.  In this case, we leave the
+memory range accounted as locked_vm, as the protections could be changed later
+and pages allocated into that region.
 
 
-Mlocked Pages:  munmap()/exit()/exec() System Call Handling
+munmap()/exit()/exec() SYSTEM CALL HANDLING
+-------------------------------------------
 
 When unmapping an mlocked region of memory, whether by an explicit call to
 munmap() or via an internal unmap from exit() or exec() processing, we must
-munlock the pages if we're removing the last VM_LOCKED vma that maps the pages.
+munlock the pages if we're removing the last VM_LOCKED VMA that maps the pages.
 Before the unevictable/mlock changes, mlocking did not mark the pages in any
 way, so unmapping them required no processing.
 
 To munlock a range of memory under the unevictable/mlock infrastructure, the
-munmap() hander and task address space tear down function call
+munmap() handler and task address space call tear down function
 munlock_vma_pages_all().  The name reflects the observation that one always
-specifies the entire vma range when munlock()ing during unmap of a region.
-Because of the vma filtering when mlocking() regions, only "normal" vmas that
+specifies the entire VMA range when munlock()ing during unmap of a region.
+Because of the VMA filtering when mlocking() regions, only "normal" VMAs that
 actually contain mlocked pages will be passed to munlock_vma_pages_all().
 
-munlock_vma_pages_all() clears the VM_LOCKED vma flag and, like mlock_fixup()
+munlock_vma_pages_all() clears the VM_LOCKED VMA flag and, like mlock_fixup()
 for the munlock case, calls __munlock_vma_pages_range() to walk the page table
-for the vma's memory range and munlock_vma_page() each resident page mapped by
-the vma.  This effectively munlocks the page, only if this is the last
-VM_LOCKED vma that maps the page.
-
+for the VMA's memory range and munlock_vma_page() each resident page mapped by
+the VMA.  This effectively munlocks the page, only if this is the last
+VM_LOCKED VMA that maps the page.
 
-Mlocked Page:  try_to_unmap()
 
-[Note:  the code changes represented by this section are really quite small
-compared to the text to describe what happening and why, and to discuss the
-implications.]
+try_to_unmap()
+--------------
 
-Pages can, of course, be mapped into multiple vmas.  Some of these vmas may
+Pages can, of course, be mapped into multiple VMAs.  Some of these VMAs may
 have VM_LOCKED flag set.  It is possible for a page mapped into one or more
-VM_LOCKED vmas not to have the PG_mlocked flag set and therefore reside on one
-of the active or inactive LRU lists.  This could happen if, for example, a
-task in the process of munlock()ing the page could not isolate the page from
-the LRU.  As a result, vmscan/shrink_page_list() might encounter such a page
-as described in "Unevictable Pages and Vmscan [shrink_*_list()]".  To
-handle this situation, try_to_unmap() has been enhanced to check for VM_LOCKED
-vmas while it is walking a page's reverse map.
+VM_LOCKED VMAs not to have the PG_mlocked flag set and therefore reside on one
+of the active or inactive LRU lists.  This could happen if, for example, a task
+in the process of munlocking the page could not isolate the page from the LRU.
+As a result, vmscan/shrink_page_list() might encounter such a page as described
+in section "vmscan's handling of unevictable pages".  To handle this situation,
+try_to_unmap() checks for VM_LOCKED VMAs while it is walking a page's reverse
+map.
 
 try_to_unmap() is always called, by either vmscan for reclaim or for page
-migration, with the argument page locked and isolated from the LRU.  BUG_ON()
-assertions enforce this requirement.  Separate functions handle anonymous and
-mapped file pages, as these types of pages have different reverse map
-mechanisms.
-
-        try_to_unmap_anon()
-
-To unmap anonymous pages, each vma in the list anchored in the anon_vma must be
-visited--at least until a VM_LOCKED vma is encountered.  If the page is being
-unmapped for migration, VM_LOCKED vmas do not stop the process because mlocked
-pages are migratable.  However, for reclaim, if the page is mapped into a
-VM_LOCKED vma, the scan stops.  try_to_unmap() attempts to acquire the mmap
-semphore of the mm_struct to which the vma belongs in read mode.  If this is
-successful, try_to_unmap() will mlock the page via mlock_vma_page()--we
-wouldn't have gotten to try_to_unmap() if the page were already mlocked--and
-will return SWAP_MLOCK, indicating that the page is unevictable.  If the
-mmap semaphore cannot be acquired, we are not sure whether the page is really
-unevictable or not.  In this case, try_to_unmap() will return SWAP_AGAIN.
-
-        try_to_unmap_file() -- linear mappings
-
-Unmapping of a mapped file page works the same, except that the scan visits
-all vmas that maps the page's index/page offset in the page's mapping's
-reverse map priority search tree.  It must also visit each vma in the page's
-mapping's non-linear list, if the list is non-empty.  As for anonymous pages,
-on encountering a VM_LOCKED vma for a mapped file page, try_to_unmap() will
-attempt to acquire the associated mm_struct's mmap semaphore to mlock the page,
-returning SWAP_MLOCK if this is successful, and SWAP_AGAIN, if not.
-
-        try_to_unmap_file() -- non-linear mappings
-
-If a page's mapping contains a non-empty non-linear mapping vma list, then
-try_to_un{map|lock}() must also visit each vma in that list to determine
-whether the page is mapped in a VM_LOCKED vma.  Again, the scan must visit
-all vmas in the non-linear list to ensure that the pages is not/should not be
-mlocked.  If a VM_LOCKED vma is found in the list, the scan could terminate.
-However, there is no easy way to determine whether the page is actually mapped
-in a given vma--either for unmapping or testing whether the VM_LOCKED vma
-actually pins the page.
-
-So, try_to_unmap_file() handles non-linear mappings by scanning a certain
-number of pages--a "cluster"--in each non-linear vma associated with the page's
-mapping, for each file mapped page that vmscan tries to unmap.  If this happens
-to unmap the page we're trying to unmap, try_to_unmap() will notice this on
-return--(page_mapcount(page) == 0)--and return SWAP_SUCCESS.  Otherwise, it
-will return SWAP_AGAIN, causing vmscan to recirculate this page.  We take
-advantage of the cluster scan in try_to_unmap_cluster() as follows:
-
-For each non-linear vma, try_to_unmap_cluster() attempts to acquire the mmap
-semaphore of the associated mm_struct for read without blocking.  If this
-attempt is successful and the vma is VM_LOCKED, try_to_unmap_cluster() will
-retain the mmap semaphore for the scan; otherwise it drops it here.  Then,
-for each page in the cluster, if we're holding the mmap semaphore for a locked
-vma, try_to_unmap_cluster() calls mlock_vma_page() to mlock the page.  This
-call is a no-op if the page is already locked, but will mlock any pages in
-the non-linear mapping that happen to be unlocked.  If one of the pages so
-mlocked is the page passed in to try_to_unmap(), try_to_unmap_cluster() will
-return SWAP_MLOCK, rather than the default SWAP_AGAIN.  This will allow vmscan
-to cull the page, rather than recirculating it on the inactive list.  Again,
-if try_to_unmap_cluster() cannot acquire the vma's mmap sem, it returns
-SWAP_AGAIN, indicating that the page is mapped by a VM_LOCKED vma, but
-couldn't be mlocked.
-
-
-Mlocked pages:  try_to_munlock() Reverse Map Scan
-
-TODO/FIXME:  a better name might be page_mlocked()--analogous to the
-page_referenced() reverse map walker.
-
-When munlock_vma_page()--see "Mlocked Pages:  munlock()/munlockall()
-System Call Handling" above--tries to munlock a page, it needs to
-determine whether or not the page is mapped by any VM_LOCKED vma, without
-actually attempting to unmap all ptes from the page.  For this purpose, the
-unevictable/mlock infrastructure introduced a variant of try_to_unmap() called
-try_to_munlock().
+migration, with the argument page locked and isolated from the LRU.  Separate
+functions handle anonymous and mapped file pages, as these types of pages have
+different reverse map mechanisms.
+
+ (*) try_to_unmap_anon()
+
+     To unmap anonymous pages, each VMA in the list anchored in the anon_vma
+     must be visited - at least until a VM_LOCKED VMA is encountered.  If the
+     page is being unmapped for migration, VM_LOCKED VMAs do not stop the
+     process because mlocked pages are migratable.  However, for reclaim, if
+     the page is mapped into a VM_LOCKED VMA, the scan stops.
+
+     try_to_unmap_anon() attempts to acquire in read mode the mmap semphore of
+     the mm_struct to which the VMA belongs.  If this is successful, it will
+     mlock the page via mlock_vma_page() - we wouldn't have gotten to
+     try_to_unmap_anon() if the page were already mlocked - and will return
+     SWAP_MLOCK, indicating that the page is unevictable.
+
+     If the mmap semaphore cannot be acquired, we are not sure whether the page
+     is really unevictable or not.  In this case, try_to_unmap_anon() will
+     return SWAP_AGAIN.
+
+ (*) try_to_unmap_file() - linear mappings
+
+     Unmapping of a mapped file page works the same as for anonymous mappings,
+     except that the scan visits all VMAs that map the page's index/page offset
+     in the page's mapping's reverse map priority search tree.  It also visits
+     each VMA in the page's mapping's non-linear list, if the list is
+     non-empty.
+
+     As for anonymous pages, on encountering a VM_LOCKED VMA for a mapped file
+     page, try_to_unmap_file() will attempt to acquire the associated
+     mm_struct's mmap semaphore to mlock the page, returning SWAP_MLOCK if this
+     is successful, and SWAP_AGAIN, if not.
+
+ (*) try_to_unmap_file() - non-linear mappings
+
+     If a page's mapping contains a non-empty non-linear mapping VMA list, then
+     try_to_un{map|lock}() must also visit each VMA in that list to determine
+     whether the page is mapped in a VM_LOCKED VMA.  Again, the scan must visit
+     all VMAs in the non-linear list to ensure that the pages is not/should not
+     be mlocked.
+
+     If a VM_LOCKED VMA is found in the list, the scan could terminate.
+     However, there is no easy way to determine whether the page is actually
+     mapped in a given VMA - either for unmapping or testing whether the
+     VM_LOCKED VMA actually pins the page.
+
+     try_to_unmap_file() handles non-linear mappings by scanning a certain
+     number of pages - a "cluster" - in each non-linear VMA associated with the
+     page's mapping, for each file mapped page that vmscan tries to unmap.  If
+     this happens to unmap the page we're trying to unmap, try_to_unmap() will
+     notice this on return (page_mapcount(page) will be 0) and return
+     SWAP_SUCCESS.  Otherwise, it will return SWAP_AGAIN, causing vmscan to
+     recirculate this page.  We take advantage of the cluster scan in
+     try_to_unmap_cluster() as follows:
+
+        For each non-linear VMA, try_to_unmap_cluster() attempts to acquire the
+        mmap semaphore of the associated mm_struct for read without blocking.
+
+        If this attempt is successful and the VMA is VM_LOCKED,
+        try_to_unmap_cluster() will retain the mmap semaphore for the scan;
+        otherwise it drops it here.
+
+        Then, for each page in the cluster, if we're holding the mmap semaphore
+        for a locked VMA, try_to_unmap_cluster() calls mlock_vma_page() to
+        mlock the page.  This call is a no-op if the page is already locked,
+        but will mlock any pages in the non-linear mapping that happen to be
+        unlocked.
+
+        If one of the pages so mlocked is the page passed in to try_to_unmap(),
+        try_to_unmap_cluster() will return SWAP_MLOCK, rather than the default
+        SWAP_AGAIN.  This will allow vmscan to cull the page, rather than
+        recirculating it on the inactive list.
+
+        Again, if try_to_unmap_cluster() cannot acquire the VMA's mmap sem, it
+        returns SWAP_AGAIN, indicating that the page is mapped by a VM_LOCKED
+        VMA, but couldn't be mlocked.
+
+
+try_to_munlock() REVERSE MAP SCAN
+---------------------------------
+
+ [!] TODO/FIXME: a better name might be page_mlocked() - analogous to the
+     page_referenced() reverse map walker.
+
+When munlock_vma_page() [see section "munlock()/munlockall() System Call
+Handling" above] tries to munlock a page, it needs to determine whether or not
+the page is mapped by any VM_LOCKED VMA without actually attempting to unmap
+all PTEs from the page.  For this purpose, the unevictable/mlock infrastructure
+introduced a variant of try_to_unmap() called try_to_munlock().
 
 try_to_munlock() calls the same functions as try_to_unmap() for anonymous and
 mapped file pages with an additional argument specifing unlock versus unmap
 processing.  Again, these functions walk the respective reverse maps looking
-for VM_LOCKED vmas.  When such a vma is found for anonymous pages and file
+for VM_LOCKED VMAs.  When such a VMA is found for anonymous pages and file
 pages mapped in linear VMAs, as in the try_to_unmap() case, the functions
 attempt to acquire the associated mmap semphore, mlock the page via
 mlock_vma_page() and return SWAP_MLOCK.  This effectively undoes the
 pre-clearing of the page's PG_mlocked done by munlock_vma_page.
 
-If try_to_unmap() is unable to acquire a VM_LOCKED vma's associated mmap
-semaphore, it will return SWAP_AGAIN.  This will allow shrink_page_list()
-to recycle the page on the inactive list and hope that it has better luck
-with the page next time.
-
-For file pages mapped into non-linear vmas, the try_to_munlock() logic works
-slightly differently.  On encountering a VM_LOCKED non-linear vma that might
-map the page, try_to_munlock() returns SWAP_AGAIN without actually mlocking
-the page.  munlock_vma_page() will just leave the page unlocked and let
-vmscan deal with it--the usual fallback position.
-
-Note that try_to_munlock()'s reverse map walk must visit every vma in a pages'
-reverse map to determine that a page is NOT mapped into any VM_LOCKED vma.
-However, the scan can terminate when it encounters a VM_LOCKED vma and can
-successfully acquire the vma's mmap semphore for read and mlock the page.
-Although try_to_munlock() can be called many [very many!] times when
-munlock()ing a large region or tearing down a large address space that has been
-mlocked via mlockall(), overall this is a fairly rare event.
-
-Mlocked Page:  Page Reclaim in shrink_*_list()
-
-shrink_active_list() culls any obviously unevictable pages--i.e.,
-!page_evictable(page, NULL)--diverting these to the unevictable lru
-list.  However, shrink_active_list() only sees unevictable pages that
-made it onto the active/inactive lru lists.  Note that these pages do not
-have PageUnevictable set--otherwise, they would be on the unevictable list and
-shrink_active_list would never see them.
+If try_to_unmap() is unable to acquire a VM_LOCKED VMA's associated mmap
+semaphore, it will return SWAP_AGAIN.  This will allow shrink_page_list() to
+recycle the page on the inactive list and hope that it has better luck with the
+page next time.
+
+For file pages mapped into non-linear VMAs, the try_to_munlock() logic works
+slightly differently.  On encountering a VM_LOCKED non-linear VMA that might
+map the page, try_to_munlock() returns SWAP_AGAIN without actually mlocking the
+page.  munlock_vma_page() will just leave the page unlocked and let vmscan deal
+with it - the usual fallback position.
+
+Note that try_to_munlock()'s reverse map walk must visit every VMA in a page's
+reverse map to determine that a page is NOT mapped into any VM_LOCKED VMA.
+However, the scan can terminate when it encounters a VM_LOCKED VMA and can
+successfully acquire the VMA's mmap semphore for read and mlock the page.
+Although try_to_munlock() might be called a great many times when munlocking a
+large region or tearing down a large address space that has been mlocked via
+mlockall(), overall this is a fairly rare event.
+
+
+PAGE RECLAIM IN shrink_*_list()
+-------------------------------
+
+shrink_active_list() culls any obviously unevictable pages - i.e.
+!page_evictable(page, NULL) - diverting these to the unevictable list.
+However, shrink_active_list() only sees unevictable pages that made it onto the
+active/inactive lru lists.  Note that these pages do not have PageUnevictable
+set - otherwise they would be on the unevictable list and shrink_active_list
+would never see them.
 
 Some examples of these unevictable pages on the LRU lists are:
 
-1) ramfs pages that have been placed on the lru lists when first allocated.
+ (1) ramfs pages that have been placed on the LRU lists when first allocated.
+
+ (2) SHM_LOCK'd shared memory pages.  shmctl(SHM_LOCK) does not attempt to
+     allocate or fault in the pages in the shared memory region.  This happens
+     when an application accesses the page the first time after SHM_LOCK'ing
+     the segment.
 
-2) SHM_LOCKed shared memory pages.  shmctl(SHM_LOCK) does not attempt to
-   allocate or fault in the pages in the shared memory region.  This happens
-   when an application accesses the page the first time after SHM_LOCKing
-   the segment.
+ (3) mlocked pages that could not be isolated from the LRU and moved to the
+     unevictable list in mlock_vma_page().
 
-3) Mlocked pages that could not be isolated from the lru and moved to the
-   unevictable list in mlock_vma_page().
+ (4) Pages mapped into multiple VM_LOCKED VMAs, but try_to_munlock() couldn't
+     acquire the VMA's mmap semaphore to test the flags and set PageMlocked.
+     munlock_vma_page() was forced to let the page back on to the normal LRU
+     list for vmscan to handle.
 
-3) Pages mapped into multiple VM_LOCKED vmas, but try_to_munlock() couldn't
-   acquire the vma's mmap semaphore to test the flags and set PageMlocked.
-   munlock_vma_page() was forced to let the page back on to the normal
-   LRU list for vmscan to handle.
+shrink_inactive_list() also diverts any unevictable pages that it finds on the
+inactive lists to the appropriate zone's unevictable list.
 
-shrink_inactive_list() also culls any unevictable pages that it finds on
-the inactive lists, again diverting them to the appropriate zone's unevictable
-lru list.  shrink_inactive_list() should only see SHM_LOCKed pages that became
-SHM_LOCKed after shrink_active_list() had moved them to the inactive list, or
-pages mapped into VM_LOCKED vmas that munlock_vma_page() couldn't isolate from
-the lru to recheck via try_to_munlock().  shrink_inactive_list() won't notice
-the latter, but will pass on to shrink_page_list().
+shrink_inactive_list() should only see SHM_LOCK'd pages that became SHM_LOCK'd
+after shrink_active_list() had moved them to the inactive list, or pages mapped
+into VM_LOCKED VMAs that munlock_vma_page() couldn't isolate from the LRU to
+recheck via try_to_munlock().  shrink_inactive_list() won't notice the latter,
+but will pass on to shrink_page_list().
 
 shrink_page_list() again culls obviously unevictable pages that it could
 encounter for similar reason to shrink_inactive_list().  Pages mapped into
-VM_LOCKED vmas but without PG_mlocked set will make it all the way to
+VM_LOCKED VMAs but without PG_mlocked set will make it all the way to
 try_to_unmap().  shrink_page_list() will divert them to the unevictable list
 when try_to_unmap() returns SWAP_MLOCK, as discussed above.
diff --git a/MAINTAINERS b/MAINTAINERS
index 5d843588e1de..0cb20d821694 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -72,7 +72,6 @@ M: Mail patches to
 L: Mailing list that is relevant to this area
 W: Web-page with status/info
 T: SCM tree type and location.  Type is one of: git, hg, quilt.
-F: Applicable files and/or directories
 S: Status, one of the following:
 
         Supported:      Someone is actually paid to look after this.
@@ -85,23 +84,40 @@ S: Status, one of the following:
                         it has been replaced by a better system and you
                         should be using that.
 
+F: Files and directories with wildcard patterns.
+   A trailing slash includes all files and subdirectory files.
+        F:      drivers/net/    all files in and below drivers/net
+        F:      drivers/net/*   all files in drivers/net, but not below
+        F:      */net/*         all files in "any top level directory"/net
+   One pattern per line.  Multiple F: lines acceptable.
+X: Files and directories that are NOT maintained, same rules as F:
+   Files exclusions are tested before file matches.
+   Can be useful for excluding a specific subdirectory, for instance:
+        F:      net/
+        X:      net/ipv6/
+   matches all files in and below net excluding net/ipv6/
+
 3C505 NETWORK DRIVER
 P:      Philip Blundell
 M:      philb@gnu.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/3c505*
 
 3C59X NETWORK DRIVER
 P:      Steffen Klassert
 M:      klassert@mathematik.tu-chemnitz.de
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      Documentation/networking/vortex.txt
+F:      drivers/net/3c59x.c
 
 3CR990 NETWORK DRIVER
 P:      David Dillow
 M:      dave@thedillows.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/typhoon*
 
 3W-9XXX SATA-RAID CONTROLLER DRIVER
 P:      Adam Radford
@@ -109,6 +125,7 @@ M:	linuxraid@amcc.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.amcc.com
 S:      Supported
+F:      drivers/scsi/3w-9xxx*
 
 3W-XXXX ATA-RAID CONTROLLER DRIVER
 P:      Adam Radford
@@ -116,35 +133,43 @@ M:	linuxraid@amcc.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.amcc.com
 S:      Supported
+F:      drivers/scsi/3w-xxxx*
 
 53C700 AND 53C700-66 SCSI DRIVER
 P:      James E.J. Bottomley
 M:      James.Bottomley@HansenPartnership.com
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/53c700*
 
 6PACK NETWORK DRIVER FOR AX.25
 P:      Andreas Koensgen
 M:      ajk@iehk.rwth-aachen.de
 L:      linux-hams@vger.kernel.org
 S:      Maintained
+F:      drivers/net/hamradio/6pack.c
 
 8169 10/100/1000 GIGABIT ETHERNET DRIVER
 P:      Francois Romieu
 M:      romieu@fr.zoreil.com
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/r8169.c
 
 8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
 L:      linux-serial@vger.kernel.org
 W:      http://serial.sourceforge.net
 S:      Orphan
+F:      drivers/serial/8250*
+F:      include/linux/serial_8250.h
 
 8390 NETWORK DRIVERS [WD80x3/SMC-ELITE, SMC-ULTRA, NE2000, 3C503, etc.]
 P:      Paul Gortmaker
 M:      p_gortmaker@yahoo.com
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/*8390*
+F:      drivers/net/ax88796.c
 
 9P FILE SYSTEM
 P:      Eric Van Hensbergen
@@ -155,14 +180,17 @@ P:	Latchesar Ionkov
 M:      lucho@ionkov.net
 L:      v9fs-developer@lists.sourceforge.net
 W:      http://swik.net/v9fs
-T:      git kernel.org:/pub/scm/linux/kernel/ericvh/v9fs.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/ericvh/v9fs.git
 S:      Maintained
+F:      Documentation/filesystems/9p.txt
+F:      fs/9p/
 
 A2232 SERIAL BOARD DRIVER
 P:      Enver Haase
 M:      A2232@gmx.net
 L:      linux-m68k@lists.linux-m68k.org
 S:      Maintained
+F:      drivers/char/ser_a2232*
 
 AACRAID SCSI RAID DRIVER
 P:      Adaptec OEM Raid Solutions
@@ -170,24 +198,29 @@ M:	aacraid@adaptec.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.adaptec.com/
 S:      Supported
+F:      Documentation/scsi/aacraid.txt
+F:      drivers/scsi/aacraid/
 
 ABIT UGURU 1,2 HARDWARE MONITOR DRIVER
 P:      Hans de Goede
 M:      j.w.r.degoede@hhs.nl
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      drivers/hwmon/abituguru.c
 
 ABIT UGURU 3 HARDWARE MONITOR DRIVER
 P:      Alistair John Strachan
 M:      alistair@devzero.co.uk
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      drivers/hwmon/abituguru3.c
 
 ACENIC DRIVER
 P:      Jes Sorensen
 M:      jes@trained-monkey.org
 L:      linux-acenic@sunsite.dk
 S:      Maintained
+F:      drivers/net/acenic*
 
 ACER WMI LAPTOP EXTRAS
 P:      Carlos Corbacho
@@ -195,14 +228,18 @@ M:	carlos@strangeworlds.co.uk
 L:      aceracpi@googlegroups.com (subscribers-only)
 W:      http://code.google.com/p/aceracpi
 S:      Maintained
+F:      drivers/platform/x86/acer-wmi.c
 
 ACPI
 P:      Len Brown
 M:      lenb@kernel.org
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
-T:      git kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
 S:      Supported
+F:      drivers/acpi/
+F:      drivers/pnp/pnpacpi/
+F:      include/linux/acpi.h
 
 ACPI BATTERY DRIVERS
 P:      Alexey Starikovskiy
@@ -210,6 +247,8 @@ M:	astarikovskiy@suse.de
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Supported
+F:      drivers/acpi/battery.c
+F:      drivers/acpi/*sbs*
 
 ACPI EC DRIVER
 P:      Alexey Starikovskiy
@@ -217,6 +256,7 @@ M:	astarikovskiy@suse.de
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Supported
+F:      drivers/acpi/ec.c
 
 ACPI FAN DRIVER
 P:      Zhang Rui
@@ -224,12 +264,14 @@ M:	rui.zhang@intel.com
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Supported
+F:      drivers/acpi/fan.c
 
 ACPI PCI HOTPLUG DRIVER
 P:      Kristen Carlson Accardi
 M:      kristen.c.accardi@intel.com
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      drivers/pci/hotplug/acpi*
 
 ACPI THERMAL DRIVER
 P:      Zhang Rui
@@ -237,6 +279,7 @@ M:	rui.zhang@intel.com
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Supported
+F:      drivers/acpi/*thermal*
 
 ACPI VIDEO DRIVER
 P:      Zhang Rui
@@ -244,6 +287,7 @@ M:	rui.zhang@intel.com
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Supported
+F:      drivers/acpi/video.c
 
 ACPI WMI DRIVER
 P:      Carlos Corbacho
@@ -251,6 +295,7 @@ M:	carlos@strangeworlds.co.uk
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Maintained
+F:      drivers/platform/x86/wmi.c
 
 AD1889 ALSA SOUND DRIVER
 P:      Kyle McMartin
@@ -260,77 +305,99 @@ M:	T-Bone@parisc-linux.org
 W:      http://wiki.parisc-linux.org/AD1889
 L:      linux-parisc@vger.kernel.org
 S:      Maintained
+F:      sound/pci/ad1889.*
 
 ADM1025 HARDWARE MONITOR DRIVER
 P:      Jean Delvare
 M:      khali@linux-fr.org
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/adm1025
+F:      drivers/hwmon/adm1025.c
 
 ADM1029 HARDWARE MONITOR DRIVER
 P:      Corentin Labbe
 M:      corentin.labbe@geomatys.fr
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      drivers/hwmon/adm1029.c
 
 ADM8211 WIRELESS DRIVER
 P:      Michael Wu
 M:      flamingice@sourmilk.net
 L:      linux-wireless@vger.kernel.org
 W:      http://linuxwireless.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
 S:      Maintained
+F:      drivers/net/wireless/adm8211.*
 
 ADT746X FAN DRIVER
 P:      Colin Leroy
 M:      colin@colino.net
 S:      Maintained
+F:      drivers/macintosh/therm_adt746x.c
 
 ADVANSYS SCSI DRIVER
 P:      Matthew Wilcox
 M:      matthew@wil.cx
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      Documentation/scsi/advansys.txt
+F:      drivers/scsi/advansys.c
 
 AEDSP16 DRIVER
 P:      Riccardo Facchetti
 M:      fizban@tin.it
 S:      Maintained
+F:      sound/oss/aedsp16.c
 
 AFFS FILE SYSTEM
 P:      Roman Zippel
 M:      zippel@linux-m68k.org
 S:      Maintained
+F:      Documentation/filesystems/affs.txt
+F:      fs/affs/
 
 AFS FILESYSTEM & AF_RXRPC SOCKET DOMAIN
 P:      David Howells
 M:      dhowells@redhat.com
 L:      linux-afs@lists.infradead.org
 S:      Supported
+F:      fs/afs/
+F:      include/net/af_rxrpc.h
+F:      net/rxrpc/af_rxrpc.c
 
 AGPGART DRIVER
 P:      David Airlie
 M:      airlied@linux.ie
-T:      git kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
 S:      Maintained
+F:      drivers/char/agp/
+F:      include/linux/agp*
 
 AHA152X SCSI DRIVER
 P:      Juergen E. Fischer
-M:      Juergen Fischer <fischer@norbit.de>
+M:      fischer@norbit.de
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/aha152x*
+F:      drivers/scsi/pcmcia/aha152x*
 
 AIC7XXX / AIC79XX SCSI DRIVER
 P:      Hannes Reinecke
 M:      hare@suse.de
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/aic7xxx/
+F:      drivers/scsi/aic7xxx_old/
 
 AIO
 P:      Benjamin LaHaise
 M:      bcrl@kvack.org
 L:      linux-aio@kvack.org
 S:      Supported
+F:      fs/aio.c
+F:      include/linux/*aio*.h
 
 ALCATEL SPEEDTOUCH USB DRIVER
 P:      Duncan Sands
@@ -338,17 +405,22 @@ M:	duncan.sands@free.fr
 L:      linux-usb@vger.kernel.org
 W:      http://www.linux-usb.org/SpeedTouch/
 S:      Maintained
+F:      drivers/usb/atm/speedtch.c
+F:      drivers/usb/atm/usbatm.c
 
 ALCHEMY AU1XX0 MMC DRIVER
 P:      Manuel Lauss
 M:      manuel.lauss@gmail.com
 S:      Maintained
+F:      drivers/mmc/host/au1xmmc.c
 
 ALI1563 I2C DRIVER
 P:      Rudolf Marek
 M:      r.marek@assembler.cz
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      Documentation/i2c/busses/i2c-ali1563
+F:      drivers/i2c/busses/i2c-ali1563.c
 
 ALPHA PORT
 P:      Richard Henderson
@@ -358,31 +430,41 @@ P:	Ivan Kokshaysky
 M:      ink@jurassic.park.msu.ru
 S:      Maintained for 2.4; PCI support for 2.6.
 L:      linux-alpha@vger.kernel.org
+F:      arch/alpha/
 
 AMD GEODE CS5536 USB DEVICE CONTROLLER DRIVER
 P:      Thomas Dahlmann
 M:      thomas.dahlmann@amd.com
 L:      linux-geode@lists.infradead.org (moderated for non-subscribers)
 S:      Supported
+F:      drivers/usb/gadget/amd5536udc.*
 
 AMD GEODE PROCESSOR/CHIPSET SUPPORT
 P:      Jordan Crouse
 L:      linux-geode@lists.infradead.org (moderated for non-subscribers)
 W:      http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
 S:      Supported
+F:      arch/x86/kernel/geode_32.c
+F:      drivers/char/hw_random/geode-rng.c
+F:      drivers/crypto/geode*
+F:      drivers/video/geode/
+F:      arch/x86/include/asm/geode.h
 
 AMD IOMMU (AMD-VI)
 P:      Joerg Roedel
 M:      joerg.roedel@amd.com
 L:      iommu@lists.linux-foundation.org
-T:      git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git
 S:      Supported
+F:      arch/x86/kernel/amd_iommu*.c
+F:      arch/x86/include/asm/amd_iommu*.h
 
 AMD MICROCODE UPDATE SUPPORT
-P:      Andreas Herrmann
-M:      andeas.herrmann3@amd.com
-L:      amd64-microcode@amd64.org
-S:      Supported
+P:      Andreas Herrmann
+M:      andreas.herrmann3@amd.com
+L:      amd64-microcode@amd64.org
+S:      Supported
+F:      arch/x86/kernel/microcode_amd.c
 
 AMS (Apple Motion Sensor) DRIVER
 P:      Stelian Pop
@@ -390,6 +472,7 @@ M:	stelian@popies.net
 P:      Michael Hanselmann
 M:      linux-kernel@hansmi.ch
 S:      Supported
+F:      drivers/hwmon/ams/
 
 AMSO1100 RNIC DRIVER
 P:      Tom Tucker
@@ -398,6 +481,7 @@ P:	Steve Wise
 M:      swise@opengridcomputing.com
 L:      general@lists.openfabrics.org
 S:      Maintained
+F:      drivers/infiniband/hw/amso1100/
 
 AOA (Apple Onboard Audio) ALSA DRIVER
 P:      Johannes Berg
@@ -405,6 +489,7 @@ M:	johannes@sipsolutions.net
 L:      linuxppc-dev@ozlabs.org
 L:      alsa-devel@alsa-project.org (subscribers-only)
 S:      Maintained
+F:      sound/aoa/
 
 APM DRIVER
 P:      Stephen Rothwell
@@ -412,48 +497,63 @@ M:	sfr@canb.auug.org.au
 L:      linux-laptop@vger.kernel.org
 W:      http://www.canb.auug.org.au/~sfr/
 S:      Supported
+F:      arch/x86/kernel/apm_32.c
+F:      include/linux/apm_bios.h
 
 APPLE BCM5974 MULTITOUCH DRIVER
 P:      Henrik Rydberg
 M:      rydberg@euromail.se
 L:      linux-input@vger.kernel.org
 S:      Maintained
+F:      drivers/input/mouse/bcm5974.c
 
 APPLE SMC DRIVER
 P:      Nicolas Boichat
 M:      nicolas@boichat.ch
 L:      mactel-linux-devel@lists.sourceforge.net
 S:      Maintained
+F:      drivers/hwmon/applesmc.c
 
 APPLETALK NETWORK LAYER
 P:      Arnaldo Carvalho de Melo
 M:      acme@ghostprotocols.net
 S:      Maintained
+F:      drivers/net/appletalk/
+F:      net/appletalk/
 
 APPLETOUCH TOUCHPAD DRIVER
 P:      Johannes Berg
 M:      johannes@sipsolutions.net
 L:      linux-input@vger.kernel.org
 S:      Maintained
+F:      Documentation/input/appletouch.txt
+F:      drivers/input/mouse/appletouch.c
 
 ARC FRAMEBUFFER DRIVER
 P:      Jaya Kumar
 M:      jayalk@intworks.biz
 S:      Maintained
+F:      drivers/video/arcfb.c
+F:      drivers/video/fb_defio.c
 
 ARM MFM AND FLOPPY DRIVERS
 P:      Ian Molton
 M:      spyro@f2s.com
 S:      Maintained
+F:      arch/arm/lib/floppydma.S
+F:      arch/arm/include/asm/floppy.h
 
 ARM PRIMECELL MMCI PL180/1 DRIVER
 S:      Orphan
+F:      drivers/mmc/host/mmci.*
 
 ARM/ADI ROADRUNNER MACHINE SUPPORT
 P:      Lennert Buytenhek
 M:      kernel@wantstofly.org
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 S:      Maintained
+F:      arch/arm/mach-ixp23xx/
+F:      arch/arm/mach-ixp23xx/include/mach/
 
 ARM/ADS SPHERE MACHINE SUPPORT
 P:      Lennert Buytenhek
@@ -507,7 +607,7 @@ ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE
 P:      Paulius Zaleckas
 M:      paulius.zaleckas@teltonika.lt
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-T:      git gitorious.org/linux-gemini/mainline.git
+T:      git git://gitorious.org/linux-gemini/mainline.git
 S:      Maintained
 
 ARM/EZX SMARTPHONES (A780, A910, A1200, E680, ROKR E2 and ROKR E6)
@@ -643,10 +743,10 @@ W:	http://hackndev.com
 S:      Maintained
 
 ARM/PALMZ72 SUPPORT
-P:     Sergey Lapin
-M:     slapin@ossfans.org
-W:     http://hackndev.com
-S:     Maintained
+P:      Sergey Lapin
+M:      slapin@ossfans.org
+W:      http://hackndev.com
+S:      Maintained
 
 ARM/PLEB SUPPORT
 P:      Peter Chubb
@@ -707,16 +807,17 @@ L:	linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 S:      Maintained
 
 ARM/NUVOTON W90X900 ARM ARCHITECTURE
-P:      Wan ZongShun
-M:      mcuos.com@gmail.com
-L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-W:      http://www.mcuos.com
-S:      Maintained
+P:      Wan ZongShun
+M:      mcuos.com@gmail.com
+L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
+W:      http://www.mcuos.com
+S:      Maintained
 
 ARPD SUPPORT
 P:      Jonathan Layes
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      net/ipv4/arp.c
 
 ASUS ACPI EXTRAS DRIVER
 P:      Corentin Chary
@@ -727,12 +828,15 @@ L:	acpi4asus-user@lists.sourceforge.net
 W:      http://sourceforge.net/projects/acpi4asus
 W:      http://xf.iksaif.net/acpi4asus
 S:      Maintained
+F:      arch/x86/kernel/acpi/boot.c
+F:      drivers/platform/x86/asus_acpi.c
 
 ASUS ASB100 HARDWARE MONITOR DRIVER
 P:      Mark M. Hoffman
 M:      mhoffman@lightlink.com
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      drivers/hwmon/asb100.c
 
 ASUS LAPTOP EXTRAS DRIVER
 P:      Corentin Chary
@@ -741,6 +845,7 @@ L:	acpi4asus-user@lists.sourceforge.net
 W:      http://sourceforge.net/projects/acpi4asus
 W:      http://xf.iksaif.net/acpi4asus
 S:      Maintained
+F:      drivers/platform/x86/asus-laptop.c
 
 ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API
 P:      Dan Williams
@@ -750,12 +855,19 @@ M:	maciej.sosnowski@intel.com
 L:      linux-kernel@vger.kernel.org
 W:      http://sourceforge.net/projects/xscaleiop
 S:      Supported
+F:      Documentation/crypto/async-tx-api.txt
+F:      crypto/async_tx/
+F:      drivers/dma/
+F:      include/linux/dmaengine.h
+F:      include/linux/async_tx.h
 
 ATA OVER ETHERNET (AOE) DRIVER
 P:      Ed L. Cashin
 M:      ecashin@coraid.com
 W:      http://www.coraid.com/support/linux
 S:      Supported
+F:      Documentation/aoe/
+F:      drivers/block/aoe/
 
 ATHEROS ATH5K WIRELESS DRIVER
 P:      Jiri Slaby
@@ -769,6 +881,7 @@ M:	me@bobcopeland.com
 L:      linux-wireless@vger.kernel.org
 L:      ath5k-devel@lists.ath5k.org
 S:      Maintained
+F:      drivers/net/wireless/ath5k/
 
 ATHEROS ATH9K WIRELESS DRIVER
 P:      Luis R. Rodriguez
@@ -778,6 +891,7 @@ M:	jmalinen@atheros.com
 L:      linux-wireless@vger.kernel.org
 L:      ath9k-devel@lists.ath9k.org
 S:      Supported
+F:      drivers/net/wireless/ath9k/
 
 ATHEROS AR9170 WIRELESS DRIVER
 P:      Christian Lamparter
@@ -791,6 +905,7 @@ ATI_REMOTE2 DRIVER
 P:      Ville Syrjala
 M:      syrjala@sci.fi
 S:      Maintained
+F:      drivers/input/misc/ati_remote2.c
 
 ATLX ETHERNET DRIVERS
 P:      Jay Cliburn
@@ -803,6 +918,7 @@ L:	atl1-devel@lists.sourceforge.net
 W:      http://sourceforge.net/projects/atl1
 W:      http://atl1.sourceforge.net
 S:      Maintained
+F:      drivers/net/atlx/
 
 ATM
 P:      Chas Williams
@@ -811,6 +927,8 @@ L:	linux-atm-general@lists.sourceforge.net (subscribers-only)
 L:      netdev@vger.kernel.org
 W:      http://linux-atm.sourceforge.net
 S:      Maintained
+F:      drivers/atm/
+F:      include/linux/atm*
 
 ATMEL AT91 MCI DRIVER
 P:      Nicolas Ferre
@@ -819,28 +937,34 @@ L:	linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 W:      http://www.atmel.com/products/AT91/
 W:      http://www.at91.com/
 S:      Maintained
+F:      drivers/mmc/host/at91_mci.c
 
 ATMEL AT91 / AT32 SERIAL DRIVER
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      drivers/serial/atmel_serial.c
 
 ATMEL LCDFB DRIVER
 P:      Nicolas Ferre
 M:      nicolas.ferre@atmel.com
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/atmel_lcdfb.c
+F:      include/video/atmel_lcdc.h
 
 ATMEL MACB ETHERNET DRIVER
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 S:      Supported
+F:      drivers/net/macb.*
 
 ATMEL SPI DRIVER
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 S:      Supported
+F:      drivers/spi/atmel_spi.*
 
 ATMEL USBA UDC DRIVER
 P:      Haavard Skinnemoen
@@ -848,6 +972,7 @@ M:	hskinnemoen@atmel.com
 L:      kernel@avr32linux.org
 W:      http://avr32linux.org/twiki/bin/view/Main/AtmelUsbDeviceDriver
 S:      Supported
+F:      drivers/usb/gadget/atmel_usba_udc.*
 
 ATMEL WIRELESS DRIVER
 P:      Simon Kelley
@@ -856,6 +981,7 @@ L:	linux-wireless@vger.kernel.org
 W:      http://www.thekelleys.org.uk/atmel
 W:      http://atmelwlandriver.sourceforge.net/
 S:      Maintained
+F:      drivers/net/wireless/atmel*
 
 AUDIT SUBSYSTEM
 P:      Al Viro
@@ -864,8 +990,10 @@ P:	Eric Paris
 M:      eparis@redhat.com
 L:      linux-audit@redhat.com (subscribers-only)
 W:      http://people.redhat.com/sgrubb/audit/
-T:      git git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current.git
 S:      Maintained
+F:      include/linux/audit.h
+F:      kernel/audit*
 
 AUXILIARY DISPLAY DRIVERS
 P:      Miguel Ojeda Sandonis
@@ -874,6 +1002,8 @@ L:	linux-kernel@vger.kernel.org
 W:      http://miguelojeda.es/auxdisplay.htm
 W:      http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
 S:      Maintained
+F:      drivers/auxdisplay/
+F:      include/linux/cfag12864b.h
 
 AVR32 ARCHITECTURE
 P:      Haavard Skinnemoen
@@ -882,11 +1012,13 @@ W:	http://www.atmel.com/products/AVR32/
 W:      http://avr32linux.org/
 W:      http://avrfreaks.net/
 S:      Supported
+F:      arch/avr32/
 
 AVR32/AT32AP MACHINE SUPPORT
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 S:      Supported
+F:      arch/avr32/mach-at32ap/
 
 AX.25 NETWORK LAYER
 P:      Ralf Baechle
@@ -894,6 +1026,9 @@ M:	ralf@linux-mips.org
 L:      linux-hams@vger.kernel.org
 W:      http://www.linux-ax25.org/
 S:      Maintained
+F:      include/linux/ax25.h
+F:      include/net/ax25.h
+F:      net/ax25/
 
 B43 WIRELESS DRIVER
 P:      Michael Buesch
@@ -903,6 +1038,7 @@ M:	stefano.brivio@polimi.it
 L:      linux-wireless@vger.kernel.org
 W:      http://linuxwireless.org/en/users/Drivers/b43
 S:      Maintained
+F:      drivers/net/wireless/b43/
 
 B43LEGACY WIRELESS DRIVER
 P:      Larry Finger
@@ -912,11 +1048,14 @@ M:	stefano.brivio@polimi.it
 L:      linux-wireless@vger.kernel.org
 W:      http://linuxwireless.org/en/users/Drivers/b43
 S:      Maintained
+F:      drivers/net/wireless/b43legacy/
 
 BACKLIGHT CLASS/SUBSYSTEM
 P:      Richard Purdie
 M:      rpurdie@rpsys.net
 S:      Maintained
+F:      drivers/video/backlight/
+F:      include/linux/backlight.h
 
 BAYCOM/HDLCDRV DRIVERS FOR AX.25
 P:      Thomas Sailer
@@ -924,18 +1063,24 @@ M:	t.sailer@alumni.ethz.ch
 L:      linux-hams@vger.kernel.org
 W:      http://www.baycom.org/~tom/ham/ham.html
 S:      Maintained
+F:      drivers/net/hamradio/baycom*
 
 BEFS FILE SYSTEM
 P:      Sergey S. Kostyliov
 M:      rathamahata@php4.ru
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/befs.txt
+F:      fs/befs/
 
 BFS FILE SYSTEM
 P:      Tigran A. Aivazian
 M:      tigran@aivazian.fsnet.co.uk
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/bfs.txt
+F:      fs/bfs/
+F:      include/linux/bfs_fs.h
 
 BLACKFIN ARCHITECTURE
 P:      Bryan Wu
@@ -943,6 +1088,7 @@ M:	cooloney@kernel.org
 L:      uclinux-dist-devel@blackfin.uclinux.org
 W:      http://blackfin.uclinux.org
 S:      Supported
+F:      arch/blackfin/
 
 BLACKFIN EMAC DRIVER
 P:      Bryan Wu
@@ -950,6 +1096,7 @@ M:	cooloney@kernel.org
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org
 S:      Supported
+F:      drivers/net/bfin_mac.*
 
 BLACKFIN RTC DRIVER
 P:      Mike Frysinger
@@ -957,6 +1104,7 @@ M:	vapier.adi@gmail.com
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org
 S:      Supported
+F:      drivers/rtc/rtc-bfin.c
 
 BLACKFIN SERIAL DRIVER
 P:      Sonic Zhang
@@ -964,6 +1112,7 @@ M:	sonic.zhang@analog.com
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org
 S:      Supported
+F:      drivers/serial/bfin_5xx.c
 
 BLACKFIN WATCHDOG DRIVER
 P:      Mike Frysinger
@@ -971,6 +1120,7 @@ M:	vapier.adi@gmail.com
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org
 S:      Supported
+F:      drivers/watchdog/bfin_wdt.c
 
 BLACKFIN I2C TWI DRIVER
 P:      Sonic Zhang
@@ -978,19 +1128,22 @@ M:	sonic.zhang@analog.com
 L:      uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
 W:      http://blackfin.uclinux.org/
 S:      Supported
+F:      drivers/i2c/busses/i2c-bfin-twi.c
 
 BLOCK LAYER
 P:      Jens Axboe
 M:      axboe@kernel.dk
 L:      linux-kernel@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
 S:      Maintained
+F:      block/
 
 BLOCK2MTD DRIVER
 P:      Joern Engel
 M:      joern@lazybastard.org
 L:      linux-mtd@lists.infradead.org
 S:      Maintained
+F:      drivers/mtd/devices/block2mtd.c
 
 BLUETOOTH DRIVERS
 P:      Marcel Holtmann
@@ -998,14 +1151,17 @@ M:	marcel@holtmann.org
 L:      linux-bluetooth@vger.kernel.org
 W:      http://www.bluez.org/
 S:      Maintained
+F:      drivers/bluetooth/
 
 BLUETOOTH SUBSYSTEM
 P:      Marcel Holtmann
 M:      marcel@holtmann.org
 L:      linux-bluetooth@vger.kernel.org
 W:      http://www.bluez.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git
 S:      Maintained
+F:      net/bluetooth/
+F:      include/net/bluetooth/
 
 BONDING DRIVER
 P:      Jay Vosburgh
@@ -1013,24 +1169,30 @@ M:	fubar@us.ibm.com
 L:      bonding-devel@lists.sourceforge.net
 W:      http://sourceforge.net/projects/bonding/
 S:      Supported
+F:      drivers/net/bonding/
+F:      include/linux/if_bonding.h
 
 BROADCOM B44 10/100 ETHERNET DRIVER
 P:      Gary Zambrano
 M:      zambrano@broadcom.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/b44.*
 
 BROADCOM BNX2 GIGABIT ETHERNET DRIVER
 P:      Michael Chan
 M:      mchan@broadcom.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/bnx2.*
+F:      drivers/net/bnx2_*
 
 BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
 P:      Eilon Greenstein
 M:      eilong@broadcom.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/bnx2x*
 
 BROADCOM TG3 GIGABIT ETHERNET DRIVER
 P:      Matt Carlson
@@ -1039,41 +1201,51 @@ P:	Michael Chan
 M:      mchan@broadcom.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/tg3.*
 
 BSG (block layer generic sg v4 driver)
 P:      FUJITA Tomonori
 M:      fujita.tomonori@lab.ntt.co.jp
 L:      linux-scsi@vger.kernel.org
 S:      Supported
+F:      block/bsg.c
+F:      include/linux/bsg.h
 
 BT8XXGPIO DRIVER
 P:      Michael Buesch
 M:      mb@bu3sch.de
 W:      http://bu3sch.de/btgpio.php
 S:      Maintained
+F:      drivers/gpio/bt8xxgpio.c
 
 BTRFS FILE SYSTEM
 P:      Chris Mason
 M:      chris.mason@oracle.com
 L:      linux-btrfs@vger.kernel.org
 W:      http://btrfs.wiki.kernel.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/mason/btrfs-unstable.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git
 S:      Maintained
+F:      Documentation/filesystems/btrfs.txt
+F:      fs/btrfs/
 
 BTTV VIDEO4LINUX DRIVER
 P:      Mauro Carvalho Chehab
 M:      mchehab@infradead.org
 L:      linux-media@vger.kernel.org
 W:      http://linuxtv.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      Documentation/video4linux/bttv/
+F:      drivers/media/video/bt8xx/bttv*
 
 CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER
 P:      Jonathan Corbet
 M:      corbet@lwn.net
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      Documentation/video4linux/cafe_ccic
+F:      drivers/media/video/cafe_ccic*
 
 CALGARY x86-64 IOMMU
 P:      Muli Ben-Yehuda
@@ -1083,6 +1255,10 @@ M:	jdmason@kudzu.us
 L:      linux-kernel@vger.kernel.org
 L:      discuss@x86-64.org
 S:      Maintained
+F:      arch/x86/kernel/pci-calgary_64.c
+F:      arch/x86/kernel/tce_64.c
+F:      arch/x86/include/asm/calgary.h
+F:      arch/x86/include/asm/tce.h
 
 CAN NETWORK LAYER
 P:      Urs Thuermann
@@ -1092,6 +1268,9 @@ M:	oliver.hartkopp@volkswagen.de
 L:      socketcan-core@lists.berlios.de (subscribers-only)
 W:      http://developer.berlios.de/projects/socketcan/
 S:      Maintained
+F:      drivers/net/can/
+F:      include/linux/can/
+F:      include/linux/can.h
 
 CELL BROADBAND ENGINE ARCHITECTURE
 P:      Arnd Bergmann
@@ -1100,12 +1279,23 @@ L:	linuxppc-dev@ozlabs.org
 L:      cbe-oss-dev@ozlabs.org
 W:      http://www.ibm.com/developerworks/power/cell/
 S:      Supported
+F:      arch/powerpc/include/asm/cell*.h
+F:      arch/powerpc/include/asm/lv1call.h
+F:      arch/powerpc/include/asm/ps3*.h
+F:      arch/powerpc/include/asm/spu*.h
+F:      arch/powerpc/oprofile/*cell*
+F:      arch/powerpc/platforms/cell/
+F:      arch/powerpc/platforms/ps3/
 
 CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
 P:      David Vrabel
 M:      david.vrabel@csr.com
 L:      linux-usb@vger.kernel.org
 S:      Supported
+F:      Documentation/usb/WUSB-Design-overview.txt
+F:      Documentation/usb/wusb-cbaf
+F:      drivers/usb/wusbcore/
+F:      include/linux/usb/wusb*
 
 CFAG12864B LCD DRIVER
 P:      Miguel Ojeda Sandonis
@@ -1114,6 +1304,8 @@ L:	linux-kernel@vger.kernel.org
 W:      http://miguelojeda.es/auxdisplay.htm
 W:      http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
 S:      Maintained
+F:      drivers/auxdisplay/cfag12864b.c
+F:      include/linux/cfag12864b.h
 
 CFAG12864BFB LCD FRAMEBUFFER DRIVER
 P:      Miguel Ojeda Sandonis
@@ -1122,18 +1314,25 @@ L:	linux-kernel@vger.kernel.org
 W:      http://miguelojeda.es/auxdisplay.htm
 W:      http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
 S:      Maintained
+F:      drivers/auxdisplay/cfag12864bfb.c
+F:      include/linux/cfag12864b.h
 
 CFG80211 and NL80211
 P:      Johannes Berg
 M:      johannes@sipsolutions.net
 L:      linux-wireless@vger.kernel.org
 S:      Maintained
+F:      include/linux/nl80211.h
+F:      include/net/cfg80211.h
+F:      net/wireless/*
+X:      net/wireless/wext*
 
 CHECKPATCH
 P:      Andy Whitcroft
 M:      apw@canonical.com
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      scripts/checkpatch.pl
 
 CISCO 10G ETHERNET DRIVER
 P:      Scott Feldman
@@ -1141,24 +1340,28 @@ M:	scofeldm@cisco.com
 P:      Joe Eykholt
 M:      jeykholt@cisco.com
 S:      Supported
+F:      drivers/net/enic/
 
 CIRRUS LOGIC EP93XX ETHERNET DRIVER
 P:      Lennert Buytenhek
 M:      kernel@wantstofly.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/arm/ep93xx_eth.c
 
 CIRRUS LOGIC EP93XX OHCI USB HOST DRIVER
 P:      Lennert Buytenhek
 M:      kernel@wantstofly.org
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/host/ohci-ep93xx.c
 
 CIRRUS LOGIC CS4270 SOUND DRIVER
 P:      Timur Tabi
 M:      timur@freescale.com
 L:      alsa-devel@alsa-project.org
 S:      Supported
+F:      sound/soc/codecs/cs4270*
 
 CIRRUS LOGIC CS4280/CS461x SOUNDDRIVER
 P:      Cirrus Logic Corporation (kernel 2.2 driver)
@@ -1166,6 +1369,8 @@ M:	Cirrus Logic Corporation, Thomas Woller <twoller@crystal.cirrus.com>
 P:      Nils Faerber (port to kernel 2.4)
 M:      Nils Faerber <nils@kernelconcepts.de>
 S:      Maintained
+F:      Documentation/input/cs461x.txt
+F:      sound/pci/cs46xx/
 
 CODA FILE SYSTEM
 P:      Jan Harkes
@@ -1174,6 +1379,9 @@ M:	coda@cs.cmu.edu
 L:      codalist@coda.cs.cmu.edu
 W:      http://www.coda.cs.cmu.edu/
 S:      Maintained
+F:      Documentation/filesystems/coda.txt
+F:      fs/coda/
+F:      include/linux/coda*.h
 
 COMMON INTERNET FILE SYSTEM (CIFS)
 P:      Steve French
@@ -1181,8 +1389,10 @@ M:	sfrench@samba.org
 L:      linux-cifs-client@lists.samba.org
 L:      samba-technical@lists.samba.org
 W:      http://linux-cifs.samba.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6.git
 S:      Supported
+F:      Documentation/filesystems/cifs.txt
+F:      fs/cifs/
 
 COMPACTPCI HOTPLUG CORE
 P:      Scott Murray
@@ -1190,6 +1400,7 @@ M:	scottm@somanetworks.com
 M:      scott@spiteful.org
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      drivers/pci/hotplug/cpci_hotplug*
 
 COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
 P:      Scott Murray
@@ -1197,6 +1408,7 @@ M:	scottm@somanetworks.com
 M:      scott@spiteful.org
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      drivers/pci/hotplug/cpcihp_zt5550.*
 
 COMPACTPCI HOTPLUG GENERIC DRIVER
 P:      Scott Murray
@@ -1204,17 +1416,21 @@ M:	scottm@somanetworks.com
 M:      scott@spiteful.org
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      drivers/pci/hotplug/cpcihp_generic.c
 
 COMPAL LAPTOP SUPPORT
 P:      Cezary Jackiewicz
 M:      cezary.jackiewicz@gmail.com
 S:      Maintained
+F:      drivers/platform/x86/compal-laptop.c
 
 COMPUTONE INTELLIPORT MULTIPORT CARD
 P:      Michael H. Warfield
 M:      mhw@wittsend.com
 W:      http://www.wittsend.com/computone.html
 S:      Maintained
+F:      Documentation/serial/computone.txt
+F:      drivers/char/ip2/
 
 CONEXANT ACCESSRUNNER USB DRIVER
 P:      Simon Arlott
@@ -1222,12 +1438,15 @@ M:	cxacru@fire.lp0.eu
 L:      accessrunner-general@lists.sourceforge.net
 W:      http://accessrunner.sourceforge.net/
 S:      Maintained
+F:      drivers/usb/atm/cxacru.c
 
 CONFIGFS
 P:      Joel Becker
 M:      joel.becker@oracle.com
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      fs/configfs/
+F:      include/linux/configfs.h
 
 CONTROL GROUPS (CGROUPS)
 P:      Paul Menage
@@ -1236,31 +1455,41 @@ P:	Li Zefan
 M:      lizf@cn.fujitsu.com
 L:      containers@lists.linux-foundation.org
 S:      Maintained
+F:      include/linux/cgroup*
+F:      kernel/cgroup*
 
 CORETEMP HARDWARE MONITORING DRIVER
 P:      Rudolf Marek
 M:      r.marek@assembler.cz
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/coretemp
+F:      drivers/hwmon/coretemp.c
 
 COSA/SRP SYNC SERIAL DRIVER
 P:      Jan "Yenya" Kasprzak
 M:      kas@fi.muni.cz
 W:      http://www.fi.muni.cz/~kas/cosa/
 S:      Maintained
+F:      drivers/net/wan/cosa*
 
 CPU FREQUENCY DRIVERS
 P:      Dave Jones
 M:      davej@redhat.com
 L:      cpufreq@vger.kernel.org
 W:      http://www.codemonkey.org.uk/projects/cpufreq/
-T:      git kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git
 S:      Maintained
+F:      arch/x86/kernel/cpu/cpufreq/
+F:      drivers/cpufreq/
+F:      include/linux/cpufreq.h
 
 CPUID/MSR DRIVER
 P:      H. Peter Anvin
 M:      hpa@zytor.com
 S:      Maintained
+F:      arch/x86/kernel/cpuid.c
+F:      arch/x86/kernel/msr.c
 
 CPUSETS
 P:      Paul Menage
@@ -1269,10 +1498,15 @@ L:	linux-kernel@vger.kernel.org
 W:      http://www.bullopensource.org/cpuset/
 W:      http://oss.sgi.com/projects/cpusets/
 S:      Supported
+F:      Documentation/cgroups/cpusets.txt
+F:      include/linux/cpuset.h
+F:      kernel/cpuset.c
 
 CRAMFS FILESYSTEM
 W:      http://sourceforge.net/projects/cramfs/
 S:      Orphan
+F:      Documentation/filesystems/cramfs.txt
+F:      fs/cramfs/
 
 CRIS PORT
 P:      Mikael Starvik
@@ -1282,6 +1516,7 @@ M:	jesper.nilsson@axis.com
 L:      dev-etrax@axis.com
 W:      http://developer.axis.com
 S:      Maintained
+F:      arch/cris/
 
 CRYPTO API
 P:      Herbert Xu
@@ -1289,8 +1524,13 @@ M:	herbert@gondor.apana.org.au
 P:      David S. Miller
 M:      davem@davemloft.net
 L:      linux-crypto@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
 S:      Maintained
+F:      Documentation/crypto/
+F:      arch/*/crypto/
+F:      crypto/
+F:      drivers/crypto/
+F:      include/crypto/
 
 CRYPTOGRAPHIC RANDOM NUMBER GENERATOR
 P:      Neil Horman
@@ -1302,16 +1542,21 @@ CS5535 Audio ALSA driver
 P:      Jaya Kumar
 M:      jayakumar.alsa@gmail.com
 S:      Maintained
+F:      sound/pci/cs5535audio/
 
 CX18 VIDEO4LINUX DRIVER
-P:      Hans Verkuil, Andy Walls
-M:      hverkuil@xs4all.nl, awalls@radix.net
+P:      Hans Verkuil
+M:      hverkuil@xs4all.nl
+P:      Andy Walls
+M:      awalls@radix.net
 L:      ivtv-devel@ivtvdriver.org
 L:      ivtv-users@ivtvdriver.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://linuxtv.org
 S:      Maintained
+F:      Documentation/video4linux/cx18.txt
+F:      drivers/media/video/cx18/
 
 CXGB3 ETHERNET DRIVER (CXGB3)
 P:      Divy Le Ray
@@ -1319,6 +1564,7 @@ M:	divy@chelsio.com
 L:      netdev@vger.kernel.org
 W:      http://www.chelsio.com
 S:      Supported
+F:      drivers/net/cxgb3/
 
 CXGB3 IWARP RNIC DRIVER (IW_CXGB3)
 P:      Steve Wise
@@ -1326,32 +1572,32 @@ M:	swise@chelsio.com
 L:      general@lists.openfabrics.org
 W:      http://www.openfabrics.org
 S:      Supported
+F:      drivers/infiniband/hw/cxgb3/
 
 CYBERPRO FB DRIVER
 P:      Russell King
 M:      rmk@arm.linux.org.uk
 W:      http://www.arm.linux.org.uk/
 S:      Maintained
-
-CYBLAFB FRAMEBUFFER DRIVER
-P:      Knut Petersen
-M:      Knut_Petersen@t-online.de
-L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
-S:      Maintained
+F:      drivers/video/cyber2000fb.*
 
 CYCLADES 2X SYNC CARD DRIVER
 P:      Arnaldo Carvalho de Melo
 M:      acme@ghostprotocols.net
 W:      http://oops.ghostprotocols.net:81/blog
 S:      Maintained
+F:      drivers/net/wan/cycx*
 
 CYCLADES ASYNC MUX DRIVER
 W:      http://www.cyclades.com/
 S:      Orphan
+F:      drivers/char/cyclades.c
+F:      include/linux/cyclades.h
 
 CYCLADES PC300 DRIVER
 W:      http://www.cyclades.com/
 S:      Orphan
+F:      drivers/net/wan/pc300*
 
 DAMA SLAVE for AX.25
 P:      Joerg Reuter
@@ -1360,12 +1606,21 @@ W:	http://yaina.de/jreuter/
 W:      http://www.qsl.net/dl1bke/
 L:      linux-hams@vger.kernel.org
 S:      Maintained
+F:      net/ax25/af_ax25.c
+F:      net/ax25/ax25_dev.c
+F:      net/ax25/ax25_ds_*
+F:      net/ax25/ax25_in.c
+F:      net/ax25/ax25_out.c
+F:      net/ax25/ax25_timer.c
+F:      net/ax25/sysctl_net_ax25.c
 
 DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
 P:      Tobias Ringstrom
 M:      tori@unhappy.mine.nu
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      Documentation/networking/dmfe.txt
+F:      drivers/net/tulip/dmfe.c
 
 DC390/AM53C974 SCSI driver
 P:      Kurt Garloff
@@ -1374,6 +1629,7 @@ W:	http://www.garloff.de/kurt/linux/dc390/
 P:      Guennadi Liakhovetski
 M:      g.liakhovetski@gmx.de
 S:      Maintained
+F:      drivers/scsi/tmscsim.*
 
 DC395x SCSI driver
 P:      Oliver Neukum
@@ -1386,6 +1642,8 @@ W:	http://twibble.org/dist/dc395x/
 L:      dc395x@twibble.org
 L:      http://lists.twibble.org/mailman/listinfo/dc395x/
 S:      Maintained
+F:      Documentation/scsi/dc395x.txt
+F:      drivers/scsi/dc395x.*
 
 DCCP PROTOCOL
 P:      Arnaldo Carvalho de Melo
@@ -1393,6 +1651,9 @@ M:	acme@ghostprotocols.net
 L:      dccp@vger.kernel.org
 W:      http://linux-net.osdl.org/index.php/DCCP
 S:      Maintained
+F:      include/linux/dccp.h
+F:      include/linux/tfrc.h
+F:      net/dccp/
 
 DECnet NETWORK LAYER
 P:      Christine Caulfield
@@ -1400,27 +1661,35 @@ M:	christine.caulfield@googlemail.com
 W:      http://linux-decnet.sourceforge.net
 L:      linux-decnet-user@lists.sourceforge.net
 S:      Maintained
+F:      Documentation/networking/decnet.txt
+F:      net/decnet/
 
 DEFXX FDDI NETWORK DRIVER
 P:      Maciej W. Rozycki
 M:      macro@linux-mips.org
 S:      Maintained
+F:      drivers/net/defxx.*
 
 DELL LAPTOP DRIVER
 P:      Matthew Garrett
 M:      mjg59@srcf.ucam.org
 S:      Maintained
+F:      drivers/platform/x86/dell-laptop.c
 
 DELL LAPTOP SMM DRIVER
 P:      Massimo Dal Zotto
 M:      dz@debian.org
 W:      http://www.debian.org/~dz/i8k/
 S:      Maintained
+F:      drivers/char/i8k.c
+F:      include/linux/i8k.h
 
 DELL SYSTEMS MANAGEMENT BASE DRIVER (dcdbas)
 P:      Doug Warzecha
 M:      Douglas_Warzecha@dell.com
 S:      Maintained
+F:      Documentation/dcdbas.txt
+F:      drivers/firmware/dcdbas.*
 
 DELL WMI EXTRAS DRIVER
 P:      Matthew Garrett
@@ -1439,6 +1708,10 @@ P:	Alasdair Kergon
 L:      dm-devel@redhat.com
 W:      http://sources.redhat.com/dm
 S:      Maintained
+F:      Documentation/device-mapper/
+F:      drivers/md/dm*
+F:      include/linux/device-mapper.h
+F:      include/linux/dm-*.h
 
 DIGI INTL. EPCA DRIVER
 P:      Digi International, Inc
@@ -1446,12 +1719,18 @@ M:	Eng.Linux@digi.com
 L:      Eng.Linux@digi.com
 W:      http://www.digi.com
 S:      Orphan
+F:      Documentation/serial/digiepca.txt
+F:      drivers/char/epca*
+F:      drivers/char/digi*
 
 DIRECTORY NOTIFICATION (DNOTIFY)
 P:      Stephen Rothwell
 M:      sfr@canb.auug.org.au
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      Documentation/filesystems/dnotify.txt
+F:      fs/notify/dnotify/
+F:      include/linux/dnotify.h
 
 DISK GEOMETRY AND PARTITION HANDLING
 P:      Andries Brouwer
@@ -1466,6 +1745,9 @@ P:	Jan Kara
 M:      jack@suse.cz
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/quota.txt
+F:      fs/quota/
+F:      include/linux/quota*.h
 
 DISTRIBUTED LOCK MANAGER (DLM)
 P:      Christine Caulfield
@@ -1474,8 +1756,9 @@ P:	David Teigland
 M:      teigland@redhat.com
 L:      cluster-devel@redhat.com
 W:      http://sources.redhat.com/cluster/
-T:      git kernel.org:/pub/scm/linux/kernel/git/teigland/dlm.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm.git
 S:      Supported
+F:      fs/dlm/
 
 DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
 P:      Maciej Sosnowski
@@ -1484,12 +1767,16 @@ P:	Dan Williams
 M:      dan.j.williams@intel.com
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      drivers/dma/
+F:      include/linux/dma*
 
 DME1737 HARDWARE MONITOR DRIVER
 P:      Juerg Haefliger
 M:      juergh@gmail.com
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/dme1737
+F:      drivers/hwmon/dme1737.c
 
 DOCBOOK FOR DOCUMENTATION
 P:      Randy Dunlap
@@ -1501,18 +1788,22 @@ P:	Shaohua Li
 M:      shaohua.li@intel.com
 L:      linux-acpi@vger.kernel.org
 S:      Supported
+F:      drivers/acpi/dock.c
 
-DOCUMENTATION (/Documentation directory)
+DOCUMENTATION
 P:      Randy Dunlap
 M:      rdunlap@xenotime.net
 L:      linux-doc@vger.kernel.org
 S:      Maintained
+F:      Documentation/
 
 DOUBLETALK DRIVER
 P:      James R. Van Zandt
 M:      jrv@vanzandt.mv.com
 L:      blinux-list@redhat.com
 S:      Maintained
+F:      drivers/char/dtlk.c
+F:      include/linux/dtlk.h
 
 DPT_I2O SCSI RAID DRIVER
 P:      Adaptec OEM Raid Solutions
@@ -1520,6 +1811,8 @@ M:	aacraid@adaptec.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.adaptec.com/
 S:      Maintained
+F:      drivers/scsi/dpt*
+F:      drivers/scsi/dpt/
 
 DRIVER CORE, KOBJECTS, AND SYSFS
 P:      Greg Kroah-Hartman
@@ -1527,48 +1820,55 @@ M:	gregkh@suse.de
 L:      linux-kernel@vger.kernel.org
 T:      quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
 S:      Supported
+F:      Documentation/kobject.txt
+F:      drivers/base/
+F:      fs/sysfs/
+F:      include/linux/kobj*
+F:      lib/kobj*
 
 DRM DRIVERS
 P:      David Airlie
 M:      airlied@linux.ie
 L:      dri-devel@lists.sourceforge.net
-T:      git kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
 S:      Maintained
+F:      drivers/gpu/drm/
 
 DSCC4 DRIVER
 P:      Francois Romieu
 M:      romieu@fr.zoreil.com
 L:      netdev@vger.kernel.org
 S:      Maintained
-
-DVB SUBSYSTEM AND DRIVERS
-P:      LinuxTV.org Project
-M:      linux-media@vger.kernel.org
-W:      http://linuxtv.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
-S:      Maintained
+F:      drivers/net/wan/dscc4.c
 
 DZ DECSTATION DZ11 SERIAL DRIVER
 P:      Maciej W. Rozycki
 M:      macro@linux-mips.org
 S:      Maintained
+F:      drivers/serial/dz.*
 
 EATA-DMA SCSI DRIVER
 P:      Michael Neuffer
-L:      linux-eata@i-connect.net, linux-scsi@vger.kernel.org
+M:      mike@i-Connect.Net
+L:      linux-eata@i-connect.net
+L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/eata*
 
 EATA ISA/EISA/PCI SCSI DRIVER
 P:      Dario Ballabio
 M:      ballabio_dario@emc.com
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/eata.c
 
 EATA-PIO SCSI DRIVER
 P:      Michael Neuffer
 M:      mike@i-Connect.Net
-L:      linux-eata@i-connect.net, linux-scsi@vger.kernel.org
+L:      linux-eata@i-connect.net
+L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/eata_pio.*
 
 EBTABLES
 P:      Bart De Schuymer
@@ -1577,87 +1877,105 @@ L:	ebtables-user@lists.sourceforge.net
 L:      ebtables-devel@lists.sourceforge.net
 W:      http://ebtables.sourceforge.net/
 S:      Maintained
+F:      include/linux/netfilter_bridge/ebt_*.h
+F:      net/bridge/netfilter/ebt*.c
 
 ECRYPT FILE SYSTEM
-P:      Tyler Hicks, Dustin Kirkland
-M:      tyhicks@linux.vnet.ibm.com, kirkland@canonical.com
+P:      Tyler Hicks
+M:      tyhicks@linux.vnet.ibm.com
+M:      Dustin Kirkland
+P:      kirkland@canonical.com
 L:      ecryptfs-devel@lists.launchpad.net
 W:      https://launchpad.net/ecryptfs
 S:      Supported
+F:      Documentation/filesystems/ecryptfs.txt
+F:      fs/ecryptfs/
 
 EDAC-CORE
 P:      Doug Thompson
 M:      dougthompson@xmission.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Supported
+F:      Documentation/edac.txt
+F:      drivers/edac/edac_*
+F:      include/linux/edac.h
 
 EDAC-E752X
 P:      Mark Gross
 P:      Doug Thompson
 M:      mark.gross@intel.com
 M:      dougthompson@xmission.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/e752x_edac.c
 
 EDAC-E7XXX
 P:      Doug Thompson
 M:      dougthompson@xmission.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/e7xxx_edac.c
 
 EDAC-I82443BXGX
 P:      Tim Small
 M:      tim@buttersideup.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/i82443bxgx_edac.c
 
 EDAC-I3000
 P:      Jason Uhlenkott
 M:      juhlenko@akamai.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/i3000_edac.c
 
 EDAC-I5000
 P:      Doug Thompson
 M:      dougthompson@xmission.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/i5000_edac.c
 
 EDAC-I5400
 P:      Mauro Carvalho Chehab
 M:      mchehab@redhat.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/i5400_edac.c
 
 EDAC-I82975X
 P:      Ranganathan Desikan
 P:      Arvind R.
 M:      rdesikan@jetzbroadband.com
 M:      arvind@acarlab.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/i82975x_edac.c
 
 EDAC-PASEMI
 P:      Egor Martovetsky
 M:      egor@pasemi.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/pasemi_edac.c
 
 EDAC-R82600
 P:      Tim Small
 M:      tim@buttersideup.com
-L:      bluesmoke-devel@lists.sourceforge.net
+L:      bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      bluesmoke.sourceforge.net
 S:      Maintained
+F:      drivers/edac/r82600_edac.c
 
 EEEPC LAPTOP EXTRAS DRIVER
 P:      Corentin Chary
@@ -1665,10 +1983,12 @@ M:	corentincj@iksaif.net
 L:      acpi4asus-user@lists.sourceforge.net
 W:      http://sourceforge.net/projects/acpi4asus
 S:      Maintained
+F:      drivers/platform/x86/eeepc-laptop.c
 
 EFS FILESYSTEM
 W:      http://aeschi.ch.eu.org/efs/
 S:      Orphan
+F:      fs/efs/
 
 EHCA (IBM GX bus InfiniBand adapter) DRIVER
 P:      Hoang-Nam Nguyen
@@ -1677,6 +1997,7 @@ P:	Christoph Raisch
 M:      raisch@de.ibm.com
 L:      general@lists.openfabrics.org
 S:      Supported
+F:      drivers/infiniband/hw/ehca/
 
 EMBEDDED LINUX
 P:      Paul Gortmaker
@@ -1692,22 +2013,29 @@ M:	james.smart@emulex.com
 L:      linux-scsi@vger.kernel.org
 W:      http://sourceforge.net/projects/lpfcxxxx
 S:      Supported
+F:      drivers/scsi/lpfc/
 
 EPSON 1355 FRAMEBUFFER DRIVER
 P:      Christopher Hoover
-M:      ch@murgatroid.com, ch@hpl.hp.com
+M:      ch@murgatroid.com
+P:      Christopher Hoover
+M:      ch@hpl.hp.com
 S:      Maintained
+F:      drivers/video/epson1355fb.c
 
 EPSON S1D13XXX FRAMEBUFFER DRIVER
 P:      Kristoffer Ericson
 M:      kristoffer.ericson@gmail.com
 S:      Maintained
+F:      drivers/video/s1d13xxxfb.c
+F:      include/video/s1d13xxxfb.h
 
 ETHEREXPRESS-16 NETWORK DRIVER
 P:      Philip Blundell
 M:      philb@gnu.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/eexpress.*
 
 ETHERNET BRIDGE
 P:      Stephen Hemminger
@@ -1715,87 +2043,126 @@ M:	shemminger@linux-foundation.org
 L:      bridge@lists.linux-foundation.org
 W:      http://www.linux-foundation.org/en/Net:Bridge
 S:      Maintained
+F:      include/linux/netfilter_bridge/
+F:      net/bridge/
 
 ETHERTEAM 16I DRIVER
 P:      Mika Kuoppala
 M:      miku@iki.fi
 S:      Maintained
+F:      drivers/net/eth16i.c
 
 EXT2 FILE SYSTEM
 L:      linux-ext4@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/ext2.txt
+F:      fs/ext2/
+F:      include/linux/ext2*
 
 EXT3 FILE SYSTEM
-P:      Stephen Tweedie, Andrew Morton
-M:      sct@redhat.com, akpm@linux-foundation.org, adilger@sun.com
+P:      Stephen Tweedie
+M:      sct@redhat.com
+P:      Andrew Morton
+M:      akpm@linux-foundation.org
+P:      Andreas Dilger
+M:      adilger@sun.com
 L:      linux-ext4@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/ext3.txt
+F:      fs/ext3/
+F:      include/linux/ext3*
 
 EXT4 FILE SYSTEM
 P:      Theodore Ts'o
-M:      tytso@mit.edu, adilger@sun.com
+M:      tytso@mit.edu
+P:      Andreas Dilger
+M:      adilger@sun.com
 L:      linux-ext4@vger.kernel.org
 W:      http://ext4.wiki.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/ext4.txt
+F:      fs/ext4/
 
 F71805F HARDWARE MONITORING DRIVER
 P:      Jean Delvare
 M:      khali@linux-fr.org
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/f71805f
+F:      drivers/hwmon/f71805f.c
 
 FARSYNC SYNCHRONOUS DRIVER
 P:      Kevin Curtis
 M:      kevin.curtis@farsite.co.uk
 W:      http://www.farsite.co.uk/
 S:      Supported
+F:      drivers/net/wan/farsync.*
 
 FAULT INJECTION SUPPORT
 P:      Akinobu Mita
 M:      akinobu.mita@gmail.com
 S:      Supported
+F:      Documentation/fault-injection/
+F:      lib/fault-inject.c
 
 FILE LOCKING (flock() and fcntl()/lockf())
 P:      Matthew Wilcox
 M:      matthew@wil.cx
 L:      linux-fsdevel@vger.kernel.org
 S:      Maintained
+F:      include/linux/fcntl.h
+F:      include/linux/fs.h
+F:      fs/fcntl.c
+F:      fs/locks.c
 
 FILESYSTEMS (VFS and infrastructure)
 P:      Alexander Viro
 M:      viro@zeniv.linux.org.uk
 L:      linux-fsdevel@vger.kernel.org
 S:      Maintained
+F:      fs/*
 
 FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
 P:      Riku Voipio
 M:      riku.vipio@iki.fi
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      drivers/hwmon/f75375s.c
+F:      include/linux/f75375s.h
 
-FIREWIRE SUBSYSTEM (drivers/firewire, <linux/firewire*.h>)
-P:      Kristian Hoegsberg, Stefan Richter
-M:      krh@redhat.com, stefanr@s5r6.in-berlin.de
+FIREWIRE SUBSYSTEM
+P:      Kristian Hoegsberg
+M:      krh@redhat.com
+P:      Stefan Richter
+M:      stefanr@s5r6.in-berlin.de
 L:      linux1394-devel@lists.sourceforge.net
 W:      http://www.linux1394.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
 S:      Maintained
+F:      drivers/firewire/
+F:      include/linux/firewire*.h
 
 FIRMWARE LOADER (request_firmware)
 L:      linux-kernel@vger.kernel.org
 S:      Orphan
+F:      Documentation/firmware_class/
+F:      drivers/base/firmware*.c
+F:      include/linux/firmware.h
 
 FPU EMULATOR
 P:      Bill Metzenthen
-M:      billm@suburbia.net
-W:      http://suburbia.net/~billm/floating-point/emulator/
+M:      billm@melbpc.org.au
+W:      http://floatingpoint.sourceforge.net/emulator/index.html
 S:      Maintained
+F:      arch/x86/math-emu/
 
 FRAME RELAY DLCI/FRAD (Sangoma drivers too)
 P:      Mike McLagan
 M:      mike.mclagan@linux.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/wan/dlci.c
+F:      drivers/net/wan/sdla.c
 
 FRAMEBUFFER LAYER
 P:      Antonino Daplas
@@ -1803,6 +2170,9 @@ M:	adaplas@gmail.com
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      http://linux-fbdev.sourceforge.net/
 S:      Maintained
+F:      Documentation/fb/
+F:      drivers/video/fb*
+F:      include/linux/fb.h
 
 FREESCALE DMA DRIVER
 P:      Li Yang
@@ -1812,6 +2182,7 @@ M:	zw@zh-kernel.org
 L:      linuxppc-embedded@ozlabs.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/dma/fsldma.*
 
 FREESCALE I2C CPM DRIVER
 P:      Jochen Friedrich
@@ -1819,6 +2190,7 @@ M:	jochen@scram.de
 L:      linuxppc-dev@ozlabs.org
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      drivers/i2c/busses/i2c-cpm.c
 
 FREESCALE IMX / MXC FRAMEBUFFER DRIVER
 P:      Sascha Hauer
@@ -1826,6 +2198,8 @@ M:	kernel@pengutronix.de
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 S:      Maintained
+F:      arch/arm/plat-mxc/include/mach/imxfb.h
+F:      drivers/video/imxfb.c
 
 FREESCALE SOC FS_ENET DRIVER
 P:      Pantelis Antoniou
@@ -1835,12 +2209,16 @@ M:	vbordug@ru.mvista.com
 L:      linuxppc-dev@ozlabs.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/fs_enet/
+F:      include/linux/fs_enet_pd.h
 
 FREESCALE QUICC ENGINE LIBRARY
 P:      Timur Tabi
 M:      timur@freescale.com
 L:      linuxppc-dev@ozlabs.org
 S:      Supported
+F:      arch/powerpc/sysdev/qe_lib/
+F:      arch/powerpc/include/asm/*qe.h
 
 FREESCALE HIGHSPEED USB DEVICE DRIVER
 P:      Li Yang
@@ -1848,6 +2226,7 @@ M:	leoli@freescale.com
 L:      linux-usb@vger.kernel.org
 L:      linuxppc-dev@ozlabs.org
 S:      Maintained
+F:      drivers/usb/gadget/fsl_usb2_udc.c
 
 FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
 P:      Li Yang
@@ -1855,12 +2234,14 @@ M:	leoli@freescale.com
 L:      netdev@vger.kernel.org
 L:      linuxppc-dev@ozlabs.org
 S:      Maintained
+F:      drivers/net/ucc_geth*
 
 FREESCALE QUICC ENGINE UCC UART DRIVER
 P:      Timur Tabi
 M:      timur@freescale.com
 L:      linuxppc-dev@ozlabs.org
 S:      Supported
+F:      drivers/serial/ucc_uart.c
 
 FREESCALE SOC SOUND DRIVERS
 P:      Timur Tabi
@@ -1868,12 +2249,15 @@ M:	timur@freescale.com
 L:      alsa-devel@alsa-project.org
 L:      linuxppc-dev@ozlabs.org
 S:      Supported
+F:      sound/soc/fsl/fsl*
+F:      sound/soc/fsl/mpc8610_hpcd.c
 
 FREEVXFS FILESYSTEM
 P:      Christoph Hellwig
 M:      hch@infradead.org
 W:      ftp://ftp.openlinux.org/pub/people/hch/vxfs
 S:      Maintained
+F:      fs/freevxfs/
 
 FREEZER
 P:      Pavel Machek
@@ -1882,22 +2266,32 @@ P:	Rafael J. Wysocki
 M:      rjw@sisk.pl
 L:      linux-pm@lists.linux-foundation.org
 S:      Supported
+F:      Documentation/power/freezing-of-tasks.txt
+F:      include/linux/freezer.h
+F:      kernel/freezer.c
 
 FTRACE
 P:      Steven Rostedt
 M:      rostedt@goodmis.org
 S:      Maintained
+F:      Documentation/ftrace.txt
+F:      arch/*/*/*/ftrace.h
+F:      arch/*/kernel/ftrace.c
+F:      include/*/ftrace.h
+F:      kernel/trace/
 
 FUJITSU FR-V (FRV) PORT
 P:      David Howells
 M:      dhowells@redhat.com
 S:      Maintained
+F:      arch/frv/
 
 FUJITSU LAPTOP EXTRAS
 P:      Jonathan Woithe
 M:      jwoithe@physics.adelaide.edu.au
 L:      linux-acpi@vger.kernel.org
 S:      Maintained
+F:      drivers/platform/x86/fujitsu-laptop.c
 
 FUSE: FILESYSTEM IN USERSPACE
 P:      Miklos Szeredi
@@ -1905,12 +2299,15 @@ M:	miklos@szeredi.hu
 L:      fuse-devel@lists.sourceforge.net
 W:      http://fuse.sourceforge.net/
 S:      Maintained
+F:      fs/fuse/
+F:      include/linux/fuse.h
 
 FUTURE DOMAIN TMC-16x0 SCSI DRIVER (16-bit)
 P:      Rik Faith
 M:      faith@cs.unc.edu
 L:      linux-scsi@vger.kernel.org
 S:      Odd Fixes (e.g., new signatures)
+F:      drivers/scsi/fdomain.*
 
 GDT SCSI DISK ARRAY CONTROLLER DRIVER
 P:      Achim Leubner
@@ -1918,26 +2315,39 @@ M:	achim_leubner@adaptec.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.icp-vortex.com/
 S:      Supported
+F:      drivers/scsi/gdt*
 
 GENERIC GPIO I2C DRIVER
 P:      Haavard Skinnemoen
 M:      hskinnemoen@atmel.com
 S:      Supported
+F:      drivers/i2c/busses/i2c-gpio.c
+F:      include/linux/i2c-gpio.h
 
 GENERIC HDLC (WAN) DRIVERS
 P:      Krzysztof Halasa
 M:      khc@pm.waw.pl
 W:      http://www.kernel.org/pub/linux/utils/net/hdlc/
 S:      Maintained
+F:      drivers/net/wan/c101.c
+F:      drivers/net/wan/hd6457*
+F:      drivers/net/wan/hdlc*
+F:      drivers/net/wan/n2.c
+F:      drivers/net/wan/pc300too.c
+F:      drivers/net/wan/pci200syn.c
+F:      drivers/net/wan/wanxl*
 
 GFS2 FILE SYSTEM
 P:      Steven Whitehouse
 M:      swhiteho@redhat.com
 L:      cluster-devel@redhat.com
 W:      http://sources.redhat.com/cluster/
-T:      git kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes.git
-T:      git kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw.git
 S:      Supported
+F:      Documentation/filesystems/gfs2*.txt
+F:      fs/gfs2/
+F:      include/linux/gfs2_ondisk.h
 
 GIGASET ISDN DRIVERS
 P:      Hansjoerg Lipp
@@ -1947,6 +2357,9 @@ M:	tilman@imap.cc
 L:      gigaset307x-common@lists.sourceforge.net
 W:      http://gigaset307x.sourceforge.net/
 S:      Maintained
+F:      Documentation/isdn/README.gigaset
+F:      drivers/isdn/gigaset/
+F:      include/linux/gigaset_dev.h
 
 HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
 P:      Frank Seidel
@@ -1954,6 +2367,7 @@ M:	frank@f-seidel.de
 L:      lm-sensors@lm-sensors.org
 W:      http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
 S:      Maintained
+F:      drivers/hwmon/hdaps.c
 
 HYPERVISOR VIRTUAL CONSOLE DRIVER
 L:      linuxppc-dev@ozlabs.org
@@ -1965,51 +2379,61 @@ GSPCA FINEPIX SUBDRIVER
 P:      Frank Zago
 M:      frank@zago.net
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      drivers/media/video/gspca/finepix.c
 
 GSPCA M5602 SUBDRIVER
 P:      Erik Andren
 M:      erik.andren@gmail.com
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      drivers/media/video/gspca/m5602/
 
 GSPCA PAC207 SONIXB SUBDRIVER
 P:      Hans de Goede
 M:      hdegoede@redhat.com
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      drivers/media/video/gspca/pac207.c
 
 GSPCA T613 SUBDRIVER
 P:      Leandro Costantino
 M:      lcostantino@gmail.com
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      drivers/media/video/gspca/t613.c
 
 GSPCA USB WEBCAM DRIVER
 P:      Jean-Francois Moine
 M:      moinejf@free.fr
 W:      http://moinejf.free.fr
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      drivers/media/video/gspca/
 
 HARDWARE MONITORING
 L:      lm-sensors@lm-sensors.org
 W:      http://www.lm-sensors.org/
 S:      Orphan
+F:      drivers/hwmon/
 
 HARDWARE RANDOM NUMBER GENERATOR CORE
 S:      Orphan
+F:      Documentation/hw_random.txt
+F:      drivers/char/hw_random/
+F:      include/linux/hw_random.h
 
 HARMONY SOUND DRIVER
 P:      Kyle McMartin
 M:      kyle@mcmartin.ca
 L:      linux-parisc@vger.kernel.org
 S:      Maintained
+F:      sound/parisc/harmony.*
 
 HAYES ESP SERIAL DRIVER
 P:      Andrew J. Robinson
@@ -2017,30 +2441,33 @@ M:	arobinso@nyx.net
 L:      linux-kernel@vger.kernel.org
 W:      http://www.nyx.net/~arobinso
 S:      Maintained
-
-HEWLETT-PACKARD FIBRE CHANNEL 64-bit/66MHz PCI non-intelligent HBA
-P:      Chirag Kantharia
-M:      chirag.kantharia@hp.com
-L:      iss_storagedev@hp.com
-S:      Maintained
+F:      Documentation/serial/hayes-esp.txt
+F:      drivers/char/esp.c
 
 HEWLETT-PACKARD SMART2 RAID DRIVER
 P:      Chirag Kantharia
 M:      chirag.kantharia@hp.com
 L:      iss_storagedev@hp.com
 S:      Maintained
+F:      Documentation/blockdev/cpqarray.txt
+F:      drivers/block/cpqarray.*
 
 HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss)
 P:      Mike Miller
 M:      mike.miller@hp.com
 L:      iss_storagedev@hp.com
 S:      Supported
+F:      Documentation/blockdev/cciss.txt
+F:      drivers/block/cciss*
+F:      include/linux/cciss_ioctl.h
 
 HFS FILESYSTEM
 P:      Roman Zippel
 M:      zippel@linux-m68k.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/hfs.txt
+F:      fs/hfs/
 
 HGA FRAMEBUFFER DRIVER
 P:      Ferenc Bakonyi
@@ -2048,6 +2475,7 @@ M:	fero@drama.obuda.kando.hu
 L:      linux-nvidia@lists.surfsouth.com
 W:      http://drama.obuda.kando.hu/~fero/cgi-bin/hgafb.shtml
 S:      Maintained
+F:      drivers/video/hgafb.c
 
 HIBERNATION (aka Software Suspend, aka swsusp)
 P:      Pavel Machek
@@ -2056,19 +2484,32 @@ P:	Rafael J. Wysocki
 M:      rjw@sisk.pl
 L:      linux-pm@lists.linux-foundation.org
 S:      Supported
+F:      arch/x86/power/
+F:      drivers/base/power/
+F:      kernel/power/
+F:      include/linux/suspend.h
+F:      include/linux/freezer.h
+F:      include/linux/pm.h
+F:      include/asm-*/suspend*.h
+F:      arch/*/include/asm/suspend*.h
 
 HID CORE LAYER
 P:      Jiri Kosina
 M:      jkosina@suse.cz
 L:      linux-input@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jikos/hid.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git
 S:      Maintained
+F:      drivers/hid/
+F:      include/linux/hid*
 
 HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS
 P:      Thomas Gleixner
 M:      tglx@linutronix.de
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/timers/
+F:      kernel/hrtimer.c
+F:      include/linux/hrtimer.h
 
 HIGH-SPEED SCC DRIVER FOR AX.25
 P:      Klaus Kudielka
@@ -2076,18 +2517,25 @@ M:	klaus.kudielka@ieee.org
 L:      linux-hams@vger.kernel.org
 W:      http://www.nt.tuwien.ac.at/~kkudielk/Linux/
 S:      Maintained
+F:      drivers/net/hamradio/dmascc.c
+F:      drivers/net/hamradio/scc.c
 
 HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
 P:      HighPoint Linux Team
 M:      linux@highpoint-tech.com
 W:      http://www.highpoint-tech.com
 S:      Supported
+F:      Documentation/scsi/hptiop.txt
+F:      drivers/scsi/hptiop.c
 
 HIPPI
 P:      Jes Sorensen
 M:      jes@trained-monkey.org
 L:      linux-hippi@sunsite.dk
 S:      Maintained
+F:      include/linux/hippidevice.h
+F:      include/linux/if_hippi.h
+F:      net/802/hippi.c
 
 HOST AP DRIVER
 P:      Jouni Malinen
@@ -2096,65 +2544,79 @@ L:	hostap@shmoo.com (subscribers-only)
 L:      linux-wireless@vger.kernel.org
 W:      http://hostap.epitest.fi/
 S:      Maintained
+F:      drivers/net/wireless/hostap/
 
 HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER
 P:      Carlos Corbacho
 M:      carlos@strangeworlds.co.uk
 S:      Odd Fixes
+F:      drivers/platform/x86/tc1100-wmi.c
 
 HP100:  Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series
 P:      Jaroslav Kysela
 M:      perex@perex.cz
 S:      Maintained
+F:      drivers/net/hp100.*
 
-HPET:   High Precision Event Timers driver (drivers/char/hpet.c)
+HPET:   High Precision Event Timers driver
 P:      Clemens Ladisch
 M:      clemens@ladisch.de
 S:      Maintained
+F:      Documentation/timers/hpet.txt
+F:      drivers/char/hpet.c
+F:      include/linux/hpet.h
 
 HPET:   i386
 P:      Venkatesh Pallipadi (Venki)
 M:      venkatesh.pallipadi@intel.com
 S:      Maintained
+F:      arch/x86/kernel/hpet.c
+F:      arch/x86/include/asm/hpet.h
 
 HPET:   x86_64
 P:      Vojtech Pavlik
 M:      vojtech@suse.cz
 S:      Maintained
 
-HPET:   ACPI hpet.c
+HPET:   ACPI
 P:      Bob Picco
 M:      bob.picco@hp.com
 S:      Maintained
+F:      drivers/char/hpet.c
 
 HPFS FILESYSTEM
 P:      Mikulas Patocka
 M:      mikulas@artax.karlin.mff.cuni.cz
 W:      http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
 S:      Maintained
+F:      fs/hpfs/
 
-HSO     3G Modem Driver (hso.c)
-P:      Denis Joseph Barrow
-M:      d.barow@option.com
+HSO 3G MODEM DRIVER
+P:      Jan Dumon
+M:      j.dumon@option.com
 W:      http://www.pharscape.org
 S:      Maintained
+F:      drivers/net/usb/hso.c
 
 HTCPEN TOUCHSCREEN DRIVER
 P:      Pau Oliva Fora
 M:      pof@eslack.org
 L:      linux-input@vger.kernel.org
 S:      Maintained
+F:      drivers/input/touchscreen/htcpen.c
 
 HUGETLB FILESYSTEM
 P:      William Irwin
 M:      wli@holomorphy.com
 S:      Maintained
+F:      fs/hugetlbfs/
 
 I2C/SMBUS STUB DRIVER
 P:      Mark M. Hoffman
 M:      mhoffman@lightlink.com
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      drivers/i2c/busses/i2c-stub.c
 
 I2C SUBSYSTEM
 P:      Jean Delvare (PC drivers, core)
@@ -2165,24 +2627,31 @@ L:	linux-i2c@vger.kernel.org
 W:      http://i2c.wiki.kernel.org/
 T:      quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
 S:      Maintained
+F:      Documentation/i2c/
+F:      drivers/i2c/
+F:      include/linux/i2c.h
+F:      include/linux/i2c-dev.h
+F:      include/linux/i2c-id.h
 
 I2C-TINY-USB DRIVER
 P:      Till Harbaum
 M:      till@harbaum.org
 L:      linux-i2c@vger.kernel.org
-T:      http://www.harbaum.org/till/i2c_tiny_usb
+W:      http://www.harbaum.org/till/i2c_tiny_usb
 S:      Maintained
+F:      drivers/i2c/busses/i2c-tiny-usb.c
 
 i386 BOOT CODE
 P:      H. Peter Anvin
 M:      hpa@zytor.com
 L:      Linux-Kernel@vger.kernel.org
 S:      Maintained
+F:      arch/x86/boot/
 
 i386 SETUP CODE / CPU ERRATA WORKAROUNDS
 P:      H. Peter Anvin
 M:      hpa@zytor.com
-T:      git.kernel.org:/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git
 S:      Maintained
 
 IA64 (Itanium) PLATFORM
@@ -2190,19 +2659,22 @@ P:	Tony Luck
 M:      tony.luck@intel.com
 L:      linux-ia64@vger.kernel.org
 W:      http://www.ia64-linux.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git
 S:      Maintained
+F:      arch/ia64/
 
 IBM MCA SCSI SUBSYSTEM DRIVER
 P:      Michael Lang
 M:      langa2@kph.uni-mainz.de
 W:      http://www.uni-mainz.de/~langm000/linux.html
 S:      Maintained
+F:      drivers/scsi/ibmmca.c
 
 IBM Power Linux RAID adapter
 P:      Brian King
 M:      brking@us.ibm.com
 S:      Supported
+F:      drivers/scsi/ipr.*
 
 IBM ServeRAID RAID DRIVER
 P:      Jack Hammer
@@ -2210,6 +2682,7 @@ P:	Dave Jeffery
 M:      ipslinux@adaptec.com
 W:      http://www.developer.ibm.com/welcome/netfinity/serveraid.html
 S:      Supported
+F:      drivers/scsi/ips.*
 
 IDE SUBSYSTEM
 P:      Bartlomiej Zolnierkiewicz
@@ -2217,45 +2690,55 @@ M:	bzolnier@gmail.com
 L:      linux-ide@vger.kernel.org
 T:      quilt kernel.org/pub/linux/kernel/people/bart/pata-2.6/
 S:      Maintained
+F:      Documentation/ide/
+F:      drivers/ide/
+F:      include/linux/ide.h
 
 IDE/ATAPI DRIVERS
 P:      Borislav Petkov
 M:      petkovbb@gmail.com
 L:      linux-ide@vger.kernel.org
 S:      Maintained
+F:      Documentation/cdrom/ide-cd
+F:      drivers/ide/ide-cd*
 
 IDLE-I7300
 P:      Andy Henroid
 M:      andrew.d.henroid@intel.com
 L:      linux-pm@lists.linux-foundation.org
 S:      Supported
+F:      drivers/idle/i7300_idle.c
 
-IEEE 1394 SUBSYSTEM (drivers/ieee1394)
+IEEE 1394 SUBSYSTEM
 P:      Ben Collins
 M:      ben.collins@ubuntu.com
 P:      Stefan Richter
 M:      stefanr@s5r6.in-berlin.de
 L:      linux1394-devel@lists.sourceforge.net
 W:      http://www.linux1394.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
 S:      Maintained
+F:      drivers/ieee1394/
 
-IEEE 1394 RAW I/O DRIVER (raw1394)
+IEEE 1394 RAW I/O DRIVER
 P:      Dan Dennedy
 M:      dan@dennedy.org
 P:      Stefan Richter
 M:      stefanr@s5r6.in-berlin.de
 L:      linux1394-devel@lists.sourceforge.net
 S:      Maintained
+F:      drivers/ieee1394/raw1394*
 
 INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
 P:      Mimi Zohar
 M:      zohar@us.ibm.com
 S:      Supported
+F:      security/integrity/ima/
 
 IMS TWINTURBO FRAMEBUFFER DRIVER
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Orphan
+F:      drivers/video/imsttfb.c
 
 INFINIBAND SUBSYSTEM
 P:      Roland Dreier
@@ -2266,8 +2749,11 @@ P:	Hal Rosenstock
 M:      hal.rosenstock@gmail.com
 L:      general@lists.openfabrics.org (moderated for non-subscribers)
 W:      http://www.openib.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git
 S:      Supported
+F:      Documentation/infiniband/
+F:      drivers/infiniband/
+F:      include/linux/if_infiniband.h
 
 INOTIFY
 P:      John McCutchan
@@ -2276,26 +2762,33 @@ P:	Robert Love
 M:      rlove@rlove.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/inotify.txt
+F:      fs/notify/inotify/
+F:      include/linux/inotify.h
 
 INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS
 P:      Dmitry Torokhov
 M:      dmitry.torokhov@gmail.com
 M:      dtor@mail.ru
 L:      linux-input@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/dtor/input.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
 S:      Maintained
+F:      drivers/input/
 
 INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
 P:      Sylvain Meyer
 M:      sylvain.meyer@worldonline.fr
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      Documentation/fb/intelfb.txt
+F:      drivers/video/intelfb/
 
 INTEL 810/815 FRAMEBUFFER DRIVER
 P:      Antonino Daplas
 M:      adaplas@gmail.com
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/i810/
 
 INTEL MENLOW THERMAL DRIVER
 P:      Sujith Thomas
@@ -2303,46 +2796,61 @@ M:	sujith.thomas@intel.com
 L:      linux-acpi@vger.kernel.org
 W:      http://www.lesswatts.org/projects/acpi/
 S:      Supported
+F:      drivers/platform/x86/intel_menlow.c
 
 INTEL IA32 MICROCODE UPDATE SUPPORT
 P:      Tigran Aivazian
 M:      tigran@aivazian.fsnet.co.uk
 S:      Maintained
+F:      arch/x86/kernel/microcode_core.c
+F:      arch/x86/kernel/microcode_intel.c
 
 INTEL I/OAT DMA DRIVER
 P:      Maciej Sosnowski
 M:      maciej.sosnowski@intel.com
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      drivers/dma/ioat*
 
 INTEL IOMMU (VT-d)
 P:      David Woodhouse
 M:      dwmw2@infradead.org
 L:      iommu@lists.linux-foundation.org
-T:      git://git.infradead.org/iommu-2.6.git
+T:      git git://git.infradead.org/iommu-2.6.git
 S:      Supported
+F:      drivers/pci/intel-iommu.c
+F:      include/linux/intel-iommu.h
 
 INTEL IOP-ADMA DMA DRIVER
 P:      Dan Williams
 M:      dan.j.williams@intel.com
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      drivers/dma/iop-adma.c
 
 INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT
 P:      Krzysztof Halasa
 M:      khc@pm.waw.pl
 S:      Maintained
+F:      arch/arm/mach-ixp4xx/include/mach/qmgr.h
+F:      arch/arm/mach-ixp4xx/include/mach/npe.h
+F:      arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
+F:      arch/arm/mach-ixp4xx/ixp4xx_npe.c
+F:      drivers/net/arm/ixp4xx_eth.c
+F:      drivers/net/wan/ixp4xx_hss.c
 
 INTEL IXP4XX RANDOM NUMBER GENERATOR SUPPORT
 P:      Deepak Saxena
 M:      dsaxena@plexity.net
 S:      Maintained
+F:      drivers/char/hw_random/ixp4xx-rng.c
 
 INTEL IXP2000 ETHERNET DRIVER
 P:      Lennert Buytenhek
 M:      kernel@wantstofly.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/ixp2000/
 
 INTEL ETHERNET DRIVERS (e100/e1000/e1000e/igb/ixgb/ixgbe)
 P:      Jeff Kirsher
@@ -2358,6 +2866,12 @@ M:	john.ronciak@intel.com
 L:      e1000-devel@lists.sourceforge.net
 W:      http://e1000.sourceforge.net/
 S:      Supported
+F:      drivers/net/e100.c
+F:      drivers/net/e1000/
+F:      drivers/net/e1000e/
+F:      drivers/net/igb/
+F:      drivers/net/ixgb/
+F:      drivers/net/ixgbe/
 
 INTEL PRO/WIRELESS 2100 NETWORK CONNECTION SUPPORT
 P:      Zhu Yi
@@ -2371,6 +2885,8 @@ L:	ipw2100-devel@lists.sourceforge.net
 W:      http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
 W:      http://ipw2100.sourceforge.net
 S:      Supported
+F:      Documentation/networking/README.ipw2100
+F:      drivers/net/wireless/ipw2x00/ipw2100.*
 
 INTEL PRO/WIRELESS 2915ABG NETWORK CONNECTION SUPPORT
 P:      Zhu Yi
@@ -2384,6 +2900,8 @@ L:	ipw2100-devel@lists.sourceforge.net
 W:      http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
 W:      http://ipw2200.sourceforge.net
 S:      Supported
+F:      Documentation/networking/README.ipw2200
+F:      drivers/net/wireless/ipw2x00/ipw2200.*
 
 INTEL WIRELESS WIMAX CONNECTION 2400
 P:      Inaky Perez-Gonzalez
@@ -2392,6 +2910,9 @@ M:	linux-wimax@intel.com
 L:      wimax@linuxwimax.org
 S:      Supported
 W:      http://linuxwimax.org
+F:      Documentation/wimax/README.i2400m
+F:      drivers/net/wimax/i2400m/
+F:      include/linux/wimax/i2400m.h
 
 INTEL WIRELESS WIFI LINK (iwlwifi)
 P:      Zhu Yi
@@ -2401,25 +2922,29 @@ M:	reinette.chatre@intel.com
 L:      linux-wireless@vger.kernel.org
 L:      ipw3945-devel@lists.sourceforge.net
 W:      http://intellinuxwireless.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6.git
 S:      Supported
+F:      drivers/net/wireless/iwlwifi/
 
 IOC3 ETHERNET DRIVER
 P:      Ralf Baechle
 M:      ralf@linux-mips.org
 L:      linux-mips@linux-mips.org
 S:      Maintained
+F:      drivers/net/ioc3-eth.c
 
 IOC3 SERIAL DRIVER
 P:      Pat Gefre
 M:      pfg@sgi.com
 L:      linux-mips@linux-mips.org
 S:      Maintained
+F:      drivers/serial/ioc3_serial.c
 
 IP MASQUERADING
 P:      Juanjo Ciarlante
 M:      jjciarla@raiz.uncu.edu.ar
 S:      Maintained
+F:      net/ipv4/netfilter/ipt_MASQUERADE.c
 
 IP1000A 10/100/1000 GIGABIT ETHERNET DRIVER
 P:      Francois Romieu
@@ -2430,6 +2955,7 @@ P:	Jesse Huang
 M:      jesse@icplus.com.tw
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/ipg.c
 
 IPATH DRIVER
 P:      Ralph Campbell
@@ -2437,6 +2963,7 @@ M:	infinipath@qlogic.com
 L:      general@lists.openfabrics.org
 T:      git git://git.qlogic.com/ipath-linux-2.6
 S:      Supported
+F:      drivers/infiniband/hw/ipath/
 
 IPMI SUBSYSTEM
 P:      Corey Minyard
@@ -2444,6 +2971,9 @@ M:	minyard@acm.org
 L:      openipmi-developer@lists.sourceforge.net
 W:      http://openipmi.sourceforge.net/
 S:      Supported
+F:      Documentation/IPMI.txt
+F:      drivers/char/ipmi/
+F:      include/linux/ipmi*
 
 IPS SCSI RAID DRIVER
 P:      Adaptec OEM Raid Solutions
@@ -2451,6 +2981,7 @@ M:	aacraid@adaptec.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.adaptec.com/
 S:      Maintained
+F:      drivers/scsi/ips*
 
 IPVS
 P:      Wensong Zhang
@@ -2462,6 +2993,8 @@ M:	ja@ssi.bg
 L:      netdev@vger.kernel.org
 L:      lvs-devel@vger.kernel.org
 S:      Maintained
+F:      Documentation/networking/ipvs-sysctl.txt
+F:      net/netfilter/ipvs/
 
 IPWIRELESS DRIVER
 P:      Jiri Kosina
@@ -2469,13 +3002,17 @@ M:	jkosina@suse.cz
 P:      David Sterba
 M:      dsterba@suse.cz
 S:      Maintained
-T:      git://git.kernel.org/pub/scm/linux/kernel/git/jikos/ipwireless_cs.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/ipwireless_cs.git
+F:      drivers/char/pcmcia/ipwireless/
 
 IPX NETWORK LAYER
 P:      Arnaldo Carvalho de Melo
 M:      acme@ghostprotocols.net
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      include/linux/ipx.h
+F:      include/net/ipx.h
+F:      net/ipx/
 
 IRDA SUBSYSTEM
 P:      Samuel Ortiz
@@ -2483,27 +3020,40 @@ M:	samuel@sortiz.org
 L:      irda-users@lists.sourceforge.net (subscribers-only)
 W:      http://irda.sourceforge.net/
 S:      Maintained
+F:      Documentation/networking/irda.txt
+F:      drivers/net/irda/
+F:      include/net/irda/
+F:      net/irda/
 
 ISAPNP
 P:      Jaroslav Kysela
 M:      perex@perex.cz
 S:      Maintained
+F:      Documentation/isapnp.txt
+F:      drivers/pnp/isapnp/
+F:      include/linux/isapnp.h
 
 ISCSI
 P:      Mike Christie
 M:      michaelc@cs.wisc.edu
 L:      open-iscsi@googlegroups.com
 W:      www.open-iscsi.org
-T:      git kernel.org:/pub/scm/linux/kernel/mnc/linux-2.6-iscsi.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mnc/linux-2.6-iscsi.git
 S:      Maintained
+F:      drivers/scsi/*iscsi*
+F:      include/scsi/*iscsi*
 
 ISDN SUBSYSTEM
 P:      Karsten Keil
 M:      isdn@linux-pingi.de
 L:      isdn4linux@listserv.isdn4linux.de (subscribers-only)
 W:      http://www.isdn4linux.de
-T:      git kernel.org:/pub/scm/linux/kernel/kkeil/isdn-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/isdn-2.6.git
 S:      Maintained
+F:      Documentation/isdn/
+F:      drivers/isdn/
+F:      include/linux/isdn.h
+F:      include/linux/isdn/
 
 ISDN SUBSYSTEM (Eicon active card driver)
 P:      Armin Schindler
@@ -2511,6 +3061,7 @@ M:	mac@melware.de
 L:      isdn4linux@listserv.isdn4linux.de (subscribers-only)
 W:      http://www.melware.de
 S:      Maintained
+F:      drivers/isdn/hardware/eicon/
 
 IVTV VIDEO4LINUX DRIVER
 P:      Hans Verkuil
@@ -2518,23 +3069,29 @@ M:	hverkuil@xs4all.nl
 L:      ivtv-devel@ivtvdriver.org
 L:      ivtv-users@ivtvdriver.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://www.ivtvdriver.org
 S:      Maintained
+F:      Documentation/video4linux/*.ivtv
+F:      drivers/media/video/ivtv/
+F:      include/linux/ivtv*
 
 JFS FILESYSTEM
 P:      Dave Kleikamp
 M:      shaggy@austin.ibm.com
 L:      jfs-discussion@lists.sourceforge.net
 W:      http://jfs.sourceforge.net/
-T:      git kernel.org:/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git
 S:      Supported
+F:      Documentation/filesystems/jfs.txt
+F:      fs/jfs/
 
 JME NETWORK DRIVER
 P:      Guo-Fu Tseng
 M:      cooldavid@cooldavid.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/jme.*
 
 JOURNALLING FLASH FILE SYSTEM V2 (JFFS2)
 P:      David Woodhouse
@@ -2542,24 +3099,36 @@ M:	dwmw2@infradead.org
 L:      linux-mtd@lists.infradead.org
 W:      http://www.linux-mtd.infradead.org/doc/jffs2.html
 S:      Maintained
+F:      fs/jffs2/
+F:      include/linux/jffs2.h
+F:      include/mtd/jffs2-user.h
 
 JOURNALLING LAYER FOR BLOCK DEVICES (JBD)
-P:      Stephen Tweedie, Andrew Morton
-M:      sct@redhat.com, akpm@linux-foundation.org
+P:      Stephen Tweedie
+M:      sct@redhat.com
+P:      Andrew Morton
+M:      akpm@linux-foundation.org
 L:      linux-ext4@vger.kernel.org
 S:      Maintained
+F:      fs/jbd*/
+F:      include/linux/ext*jbd*.h
+F:      include/linux/jbd*.h
 
 K8TEMP HARDWARE MONITORING DRIVER
 P:      Rudolf Marek
 M:      r.marek@assembler.cz
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/k8temp
+F:      drivers/hwmon/k8temp.c
 
 KCONFIG
 P:      Roman Zippel
 M:      zippel@linux-m68k.org
 L:      linux-kbuild@vger.kernel.org
 S:      Maintained
+F:      Documentation/kbuild/kconfig-language.txt
+F:      scripts/kconfig/
 
 KDUMP
 P:      Vivek Goyal
@@ -2570,26 +3139,32 @@ L:	kexec@lists.infradead.org
 L:      linux-kernel@vger.kernel.org
 W:      http://lse.sourceforge.net/kdump/
 S:      Maintained
+F:      Documentation/kdump/
 
 KERNEL AUTOMOUNTER (AUTOFS)
 P:      H. Peter Anvin
 M:      hpa@zytor.com
 L:      autofs@linux.kernel.org
 S:      Odd Fixes
+F:      fs/autofs/
 
 KERNEL AUTOMOUNTER v4 (AUTOFS4)
 P:      Ian Kent
 M:      raven@themaw.net
 L:      autofs@linux.kernel.org
 S:      Maintained
+F:      fs/autofs4/
 
-KERNEL BUILD (kbuild: Makefile, scripts/Makefile.*)
+KERNEL BUILD
 P:      Sam Ravnborg
 M:      sam@ravnborg.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild-next.git
-T:      git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild-fixes.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes.git
 L:      linux-kbuild@vger.kernel.org
 S:      Maintained
+F:      Documentation/kbuild/
+F:      Makefile
+F:      scripts/Makefile.*
 
 KERNEL JANITORS
 P:      Several
@@ -2605,6 +3180,13 @@ M:	neilb@suse.de
 L:      linux-nfs@vger.kernel.org
 W:      http://nfs.sourceforge.net/
 S:      Supported
+F:      fs/nfsd/
+F:      include/linux/nfsd/
+F:      fs/lockd/
+F:      fs/nfs_common/
+F:      net/sunrpc/
+F:      include/linux/lockd/
+F:      include/linux/sunrpc/
 
 KERNEL VIRTUAL MACHINE (KVM)
 P:      Avi Kivity
@@ -2612,6 +3194,11 @@ M:	avi@redhat.com
 L:      kvm@vger.kernel.org
 W:      http://kvm.qumranet.com
 S:      Supported
+F:      Documentation/*/kvm.txt
+F:      arch/*/kvm/
+F:      arch/*/include/asm/kvm*
+F:      include/linux/kvm*
+F:      virt/kvm/
 
 KERNEL VIRTUAL MACHINE (KVM) FOR AMD-V
 P:      Joerg Roedel
@@ -2619,6 +3206,9 @@ M:	joerg.roedel@amd.com
 L:      kvm@vger.kernel.org
 W:      http://kvm.qumranet.com
 S:      Supported
+F:      arch/x86/include/asm/svm.h
+F:      arch/x86/kvm/kvm_svm.h
+F:      arch/x86/kvm/svm.c
 
 KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC
 P:      Hollis Blanchard
@@ -2626,6 +3216,8 @@ M:	hollisb@us.ibm.com
 L:      kvm-ppc@vger.kernel.org
 W:      http://kvm.qumranet.com
 S:      Supported
+F:      arch/powerpc/include/asm/kvm*
+F:      arch/powerpc/kvm/
 
 KERNEL VIRTUAL MACHINE For Itanium (KVM/IA64)
 P:      Xiantao Zhang
@@ -2633,6 +3225,9 @@ M:	xiantao.zhang@intel.com
 L:      kvm-ia64@vger.kernel.org
 W:      http://kvm.qumranet.com
 S:      Supported
+F:      Documentation/ia64/kvm.txt
+F:      arch/ia64/include/asm/kvm*
+F:      arch/ia64/kvm/
 
 KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
 P:      Carsten Otte
@@ -2643,6 +3238,9 @@ M:	linux390@de.ibm.com
 L:      linux-s390@vger.kernel.org
 W:      http://www.ibm.com/developerworks/linux/linux390/
 S:      Supported
+F:      Documentation/s390/kvm.txt
+F:      arch/s390/include/asm/kvm*
+F:      arch/s390/kvm/
 
 KEXEC
 P:      Eric Biederman
@@ -2651,18 +3249,28 @@ W:	http://ftp.kernel.org/pub/linux/kernel/people/horms/kexec-tools/
 L:      linux-kernel@vger.kernel.org
 L:      kexec@lists.infradead.org
 S:      Maintained
+F:      include/linux/kexec.h
+F:      kernel/kexec.c
 
 KGDB
 P:      Jason Wessel
 M:      jason.wessel@windriver.com
 L:      kgdb-bugreport@lists.sourceforge.net
 S:      Maintained
+F:      Documentation/DocBook/kgdb.tmpl
+F:      drivers/misc/kgdbts.c
+F:      drivers/serial/kgdboc.c
+F:      include/linux/kgdb.h
+F:      kernel/kgdb.c
 
 KMEMTRACE
 P:      Eduard - Gabriel Munteanu
 M:      eduard.munteanu@linux360.ro
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/vm/kmemtrace.txt
+F:      include/trace/kmemtrace.h
+F:      kernel/trace/kmemtrace.c
 
 KPROBES
 P:      Ananth N Mavinakayanahalli
@@ -2675,6 +3283,9 @@ P:	Masami Hiramatsu
 M:      mhiramat@redhat.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/kprobes.txt
+F:      include/linux/kprobes.h
+F:      kernel/kprobes.c
 
 KS0108 LCD CONTROLLER DRIVER
 P:      Miguel Ojeda Sandonis
@@ -2683,21 +3294,31 @@ L:	linux-kernel@vger.kernel.org
 W:      http://miguelojeda.es/auxdisplay.htm
 W:      http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
 S:      Maintained
+F:      Documentation/auxdisplay/ks0108
+F:      drivers/auxdisplay/ks0108.c
+F:      include/linux/ks0108.h
 
 LAPB module
 L:      linux-x25@vger.kernel.org
 S:      Orphan
+F:      Documentation/networking/lapb-module.txt
+F:      include/*/lapb.h
+F:      net/lapb/
 
 LASI 53c700 driver for PARISC
 P:      James E.J. Bottomley
 M:      James.Bottomley@HansenPartnership.com
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      Documentation/scsi/53c700.txt
+F:      drivers/scsi/53c700*
 
 LED SUBSYSTEM
 P:      Richard Purdie
 M:      rpurdie@rpsys.net
 S:      Maintained
+F:      drivers/leds/
+F:      include/linux/leds.h
 
 LEGO USB Tower driver
 P:      Juergen Stuber
@@ -2705,6 +3326,7 @@ M:	starblue@users.sourceforge.net
 L:      legousb-devel@lists.sourceforge.net
 W:      http://legousb.sourceforge.net/
 S:      Maintained
+F:      drivers/usb/misc/legousbtower.c
 
 LGUEST
 P:      Rusty Russell
@@ -2712,6 +3334,11 @@ M:	rusty@rustcorp.com.au
 L:      lguest@ozlabs.org
 W:      http://lguest.ozlabs.org/
 S:      Maintained
+F:      Documentation/lguest/
+F:      arch/x86/lguest/
+F:      drivers/lguest/
+F:      include/linux/lguest*.h
+F:      arch/x86/include/asm/lguest*.h
 
 LINUX FOR IBM pSERIES (RS/6000)
 P:      Paul Mackerras
@@ -2719,12 +3346,6 @@ M:	paulus@au.ibm.com
 W:      http://www.ibm.com/linux/ltc/projects/ppc
 S:      Supported
 
-LINUX FOR NCR VOYAGER
-P:      James Bottomley
-M:      James.Bottomley@HansenPartnership.com
-W:      http://www.hansenpartnership.com/voyager
-S:      Maintained
-
 LINUX FOR POWERPC (32-BIT AND 64-BIT)
 P:      Benjamin Herrenschmidt
 M:      benh@kernel.crashing.org
@@ -2732,7 +3353,7 @@ P:	Paul Mackerras
 M:      paulus@samba.org
 W:      http://www.penguinppc.org/
 L:      linuxppc-dev@ozlabs.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/benh/powerpc.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git
 S:      Supported
 
 LINUX FOR POWER MACINTOSH
@@ -2757,7 +3378,7 @@ P:	Matt Porter
 M:      mporter@kernel.crashing.org
 W:      http://www.penguinppc.org/
 L:      linuxppc-dev@ozlabs.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc.git
 S:      Maintained
 
 LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
@@ -2794,30 +3415,39 @@ LINUX SECURITY MODULE (LSM) FRAMEWORK
 P:      Chris Wright
 M:      chrisw@sous-sol.org
 L:      linux-security-module@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git
 S:      Supported
 
 LLC (802.2)
 P:      Arnaldo Carvalho de Melo
 M:      acme@ghostprotocols.net
 S:      Maintained
+F:      include/linux/llc.h
+F:      include/net/llc*
+F:      net/llc/
 
 LIS3LV02D ACCELEROMETER DRIVER
 P:      Eric Piel
 M:      eric.piel@tremplin-utc.net
 S:      Maintained
+F:      Documentation/hwmon/lis3lv02d
+F:      drivers/hwmon/lis3lv02d.*
 
 LM83 HARDWARE MONITOR DRIVER
 P:      Jean Delvare
 M:      khali@linux-fr.org
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/lm83
+F:      drivers/hwmon/lm83.c
 
 LM90 HARDWARE MONITOR DRIVER
 P:      Jean Delvare
 M:      khali@linux-fr.org
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/lm90
+F:      drivers/hwmon/lm90.c
 
 LOCKDEP AND LOCKSTAT
 P:      Peter Zijlstra
@@ -2825,8 +3455,12 @@ M:	peterz@infradead.org
 P:      Ingo Molnar
 M:      mingo@redhat.com
 L:      linux-kernel@vger.kernel.org
-T:      git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git
 S:      Maintained
+F:      Documentation/lockdep*.txt
+F:      Documentation/lockstat.txt
+F:      include/linux/lockdep.h
+F:      kernel/lockdep*
 
 LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks)
 P:      Richard Russon (FlatCap)
@@ -2834,6 +3468,8 @@ M:	ldm@flatcap.org
 L:      linux-ntfs-dev@lists.sourceforge.net
 W:      http://www.linux-ntfs.org/content/view/19/37/
 S:      Maintained
+F:      Documentation/ldm.txt
+F:      fs/partitions/ldm.*
 
 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
 P:      Eric Moore
@@ -2843,12 +3479,14 @@ L:	DL-MPTFusionLinux@lsi.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.lsilogic.com/support
 S:      Supported
+F:      drivers/message/fusion/
 
 LSILOGIC/SYMBIOS/NCR 53C8XX and 53C1010 PCI-SCSI drivers
 P:      Matthew Wilcox
 M:      matthew@wil.cx
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/sym53c8xx_2/
 
 LTP (Linux Test Project)
 P:      Subrata Modak
@@ -2857,7 +3495,7 @@ P:	Mike Frysinger
 M:      vapier@gentoo.org
 L:      ltp-list@lists.sourceforge.net (subscribers-only)
 W:      http://ltp.sourceforge.net/
-T:      git kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
 S:      Maintained
 
 M32R ARCHITECTURE
@@ -2867,6 +3505,8 @@ L:	linux-m32r@ml.linux-m32r.org
 L:      linux-m32r-ja@ml.linux-m32r.org (in Japanese)
 W:      http://www.linux-m32r.org/
 S:      Maintained
+F:      arch/m32r/
+F:      include/asm-m32r/
 
 M68K ARCHITECTURE
 P:      Geert Uytterhoeven
@@ -2875,8 +3515,10 @@ P:	Roman Zippel
 M:      zippel@linux-m68k.org
 L:      linux-m68k@lists.linux-m68k.org
 W:      http://www.linux-m68k.org/
-T:      git git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git
 S:      Maintained
+F:      arch/m68k/
+F:      drivers/zorro/
 
 M68K ON APPLE MACINTOSH
 P:      Joshua Thompson
@@ -2884,20 +3526,25 @@ M:	funaho@jurai.org
 W:      http://www.mac.linux-m68k.org/
 L:      linux-m68k@lists.linux-m68k.org
 S:      Maintained
+F:      arch/m68k/mac/
 
 M68K ON HP9000/300
 P:      Philip Blundell
 M:      philb@gnu.org
 W:      http://www.tazenda.demon.co.uk/phil/linux-hp
 S:      Maintained
+F:      arch/m68k/hp300/
 
 MAC80211
 P:      Johannes Berg
 M:      johannes@sipsolutions.net
 L:      linux-wireless@vger.kernel.org
 W:      http://linuxwireless.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
 S:      Maintained
+F:      Documentation/networking/mac80211-injection.txt
+F:      include/net/mac80211.h
+F:      net/mac80211/
 
 MAC80211 PID RATE CONTROL
 P:      Stefano Brivio
@@ -2906,14 +3553,17 @@ P:	Mattias Nissler
 M:      mattias.nissler@gmx.de
 L:      linux-wireless@vger.kernel.org
 W:      http://linuxwireless.org/en/developers/Documentation/mac80211/RateControl/PID
-T:      git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
 S:      Maintained
+F:      net/mac80211/rc80211_pid*
 
 MACVLAN DRIVER
 P:      Patrick McHardy
 M:      kaber@trash.net
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/macvlan.c
+F:      include/linux/if_macvlan.h
 
 MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7
 P:      Michael Kerrisk
@@ -2927,12 +3577,15 @@ P:	Dan Williams
 M:      dcbw@redhat.com
 L:      libertas-dev@lists.infradead.org
 S:      Maintained
+F:      drivers/net/wireless/libertas/
 
 MARVELL MV643XX ETHERNET DRIVER
 P:      Lennert Buytenhek
 M:      buytenh@marvell.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/mv643xx_eth.*
+F:      include/linux/mv643xx.h
 
 MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER
 P:      Nicolas Pitre
@@ -2953,12 +3606,31 @@ P:	Petr Vandrovec
 M:      vandrove@vc.cvut.cz
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/matrox/matroxfb_*
+F:      include/linux/matroxfb.h
 
 MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
 P:      Hans J. Koch
 M:      hjk@linutronix.de
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/max6650
+F:      drivers/hwmon/max6650.c
+
+MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
+P:      Mauro Carvalho Chehab
+M:      mchehab@infradead.org
+P:      LinuxTV.org Project
+L:      linux-media@vger.kernel.org
+W:      http://linuxtv.org
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+S:      Maintained
+F:      Documentation/dvb/
+F:      Documentation/video4linux/
+F:      drivers/media/
+F:      include/media/
+F:      include/linux/dvb/
+F:      include/linux/videodev*.h
 
 MEGARAID SCSI DRIVERS
 P:      Neela Syam Kolli
@@ -2966,12 +3638,17 @@ M:	megaraidlinux@lsi.com
 L:      linux-scsi@vger.kernel.org
 W:      http://megaraid.lsilogic.com
 S:      Maintained
+F:      Documentation/scsi/megaraid.txt
+F:      drivers/scsi/megaraid.*
+F:      drivers/scsi/megaraid/
 
 MEMORY MANAGEMENT
 L:      linux-mm@kvack.org
 L:      linux-kernel@vger.kernel.org
 W:      http://www.linux-mm.org
 S:      Maintained
+F:      include/linux/mm.h
+F:      mm/
 
 MEMORY RESOURCE CONTROLLER
 P:      Balbir Singh
@@ -2983,6 +3660,7 @@ M:	kamezawa.hiroyu@jp.fujitsu.com
 L:      linux-mm@kvack.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      mm/memcontrol.c
 
 MEMORY TECHNOLOGY DEVICES (MTD)
 P:      David Woodhouse
@@ -2991,55 +3669,84 @@ W:	http://www.linux-mtd.infradead.org/
 L:      linux-mtd@lists.infradead.org
 T:      git git://git.infradead.org/mtd-2.6.git
 S:      Maintained
+F:      drivers/mtd/
+F:      include/linux/mtd/
+F:      include/mtd/
+
+MICROBLAZE ARCHITECTURE
+P:      Michal Simek
+M:      monstr@monstr.eu
+L:      microblaze-uclinux@itee.uq.edu.au
+W:      http://www.monstr.eu/fdt/
+T:      git git://git.monstr.eu/linux-2.6-microblaze.git
+S:      Supported
+F:      arch/microblaze/
 
 MICROTEK X6 SCANNER
 P:      Oliver Neukum
 M:      oliver@neukum.name
 S:      Maintained
+F:      drivers/usb/image/microtek.*
 
 MIPS
 P:      Ralf Baechle
 M:      ralf@linux-mips.org
 W:      http://www.linux-mips.org/
 L:      linux-mips@linux-mips.org
-T:      git www.linux-mips.org:/pub/scm/linux.git
+T:      git git://git.linux-mips.org/pub/scm/linux.git
 S:      Supported
+F:      Documentation/mips/
+F:      arch/mips/
 
 MISCELLANEOUS MCA-SUPPORT
 P:      James Bottomley
 M:      James.Bottomley@HansenPartnership.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/ia64/mca.txt
+F:      Documentation/mca.txt
+F:      drivers/mca/
+F:      include/linux/mca*
 
 MODULE SUPPORT
 P:      Rusty Russell
 M:      rusty@rustcorp.com.au
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      include/linux/module.h
+F:      kernel/module.c
 
 MOTION EYE VAIO PICTUREBOOK CAMERA DRIVER
 P:      Stelian Pop
 M:      stelian@popies.net
 W:      http://popies.net/meye/
 S:      Maintained
+F:      Documentation/video4linux/meye.txt
+F:      drivers/media/video/meye.*
+F:      include/linux/meye.h
 
 MOTOROLA IMX MMC/SD HOST CONTROLLER INTERFACE DRIVER
 P:      Pavel Pisa
 M:      ppisa@pikron.com
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 S:      Maintained
+F:      drivers/mmc/host/imxmmc.*
 
 MOUSE AND MISC DEVICES [GENERAL]
 P:      Alessandro Rubini
 M:      rubini@ipvvis.unipv.it
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/input/mouse/
+F:      include/linux/gpio_mouse.h
 
 MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
 P:      Jiri Slaby
 M:      jirislaby@gmail.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/serial/moxa-smartio
+F:      drivers/char/mxser.*
 
 MSI LAPTOP SUPPORT
 P:      Lennart Poettering
@@ -3047,43 +3754,54 @@ M:	mzxreary@0pointer.de
 W:      https://tango.0pointer.de/mailman/listinfo/s270-linux
 W:      http://0pointer.de/lennart/tchibo.html
 S:      Maintained
+F:      drivers/platform/x86/msi-laptop.c
 
 MULTIFUNCTION DEVICES (MFD)
 P:      Samuel Ortiz
 M:      sameo@linux.intel.com
 L:      linux-kernel@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/sameo/mfd-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6.git
 S:      Supported
+F:      drivers/mfd/
 
 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
 P:      Pierre Ossman
 M:      pierre@ossman.eu
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/mmc/
+F:      include/linux/mmc/
 
 MULTIMEDIA CARD (MMC) ETC. OVER SPI
 P:      David Brownell
 M:      dbrownell@users.sourceforge.net
 L:      linux-kernel@vger.kernel.org
 S:      Odd Fixes
+F:      drivers/mmc/host/mmc_spi.c
+F:      include/linux/spi/mmc_spi.h
 
 MULTISOUND SOUND DRIVER
 P:      Andrew Veliath
 M:      andrewtv@usa.net
 S:      Maintained
+F:      Documentation/sound/oss/MultiSound
+F:      sound/oss/msnd*
 
 MULTITECH MULTIPORT CARD (ISICOM)
 P:      Jiri Slaby
 M:      jirislaby@gmail.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/char/isicom.c
+F:      include/linux/isicom.h
 
 MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
 P:      Felipe Balbi
 M:      felipe.balbi@nokia.com
 L:      linux-usb@vger.kernel.org
-T:      git gitorious.org:/musb/mainline.git
+T:      git git://gitorious.org/musb/mainline.git
 S:      Maintained
+F:      drivers/usb/musb/
 
 MYRICOM MYRI-10G 10GbE DRIVER (MYRI10GE)
 P:      Andrew Gallatin
@@ -3093,23 +3811,27 @@ M:	brice@myri.com
 L:      netdev@vger.kernel.org
 W:      http://www.myri.com/scs/download-Myri10GE.html
 S:      Supported
+F:      drivers/net/myri10ge/
 
 NATSEMI ETHERNET DRIVER (DP8381x)
 P:      Tim Hockin
 M:      thockin@hockin.org
 S:      Maintained
+F:      drivers/net/natsemi.c
 
 NCP FILESYSTEM
 P:      Petr Vandrovec
 M:      vandrove@vc.cvut.cz
 L:      linware@sh.cvut.cz
 S:      Maintained
+F:      fs/ncpfs/
 
 NCR DUAL 700 SCSI DRIVER (MICROCHANNEL)
 P:      James E.J. Bottomley
 M:      James.Bottomley@HansenPartnership.com
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/NCR_D700.*
 
 NETEFFECT IWARP RNIC DRIVER (IW_NES)
 P:      Faisal Latif
@@ -3126,6 +3848,7 @@ P:	Stephen Hemminger
 M:      shemminger@linux-foundation.org
 L:      netem@lists.linux-foundation.org
 S:      Maintained
+F:      net/sched/sch_netem.c
 
 NETERION (S2IO) 10GbE DRIVER (xframe/vxge)
 P:      Ramkrishna Vepa
@@ -3142,6 +3865,8 @@ L:	netdev@vger.kernel.org
 W:      http://trac.neterion.com/cgi-bin/trac.cgi/wiki/Linux?Anonymous
 W:      http://trac.neterion.com/cgi-bin/trac.cgi/wiki/X3100Linux?Anonymous
 S:      Supported
+F:      Documentation/networking/s2io.txt
+F:      drivers/net/s2io*
 
 NETFILTER/IPTABLES/IPCHAINS
 P:      Rusty Russell
@@ -3157,6 +3882,12 @@ L:	coreteam@netfilter.org
 W:      http://www.netfilter.org/
 W:      http://www.iptables.org/
 S:      Supported
+F:      include/linux/netfilter*
+F:      include/linux/netfilter/
+F:      include/net/netfilter/
+F:      net/*/netfilter.c
+F:      net/*/netfilter/
+F:      net/netfilter/
 
 NETLABEL
 P:      Paul Moore
@@ -3164,6 +3895,9 @@ M:	paul.moore@hp.com
 W:      http://netlabel.sf.net
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      Documentation/netlabel/
+F:      include/net/netlabel.h
+F:      net/netlabel/
 
 NETROM NETWORK LAYER
 P:      Ralf Baechle
@@ -3171,18 +3905,25 @@ M:	ralf@linux-mips.org
 L:      linux-hams@vger.kernel.org
 W:      http://www.linux-ax25.org/
 S:      Maintained
+F:      include/linux/netrom.h
+F:      include/net/netrom.h
+F:      net/netrom/
 
 NETWORK BLOCK DEVICE (NBD)
 P:      Paul Clements
 M:      Paul.Clements@steeleye.com
 S:      Maintained
+F:      Documentation/blockdev/nbd.txt
+F:      drivers/block/nbd.c
+F:      include/linux/nbd.h
 
 NETWORK DEVICE DRIVERS
 P:      Jeff Garzik
 M:      jgarzik@pobox.com
 L:      netdev@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git
 S:      Maintained
+F:      drivers/net/
 
 NETWORKING [GENERAL]
 P:      Networking Team
@@ -3190,6 +3931,8 @@ M:	netdev@vger.kernel.org
 L:      netdev@vger.kernel.org
 W:      http://linux-net.osdl.org/
 S:      Maintained
+F:      net/
+F:      include/net/
 
 NETWORKING [IPv4/IPv6]
 P:      David S. Miller
@@ -3205,8 +3948,11 @@ M:	yoshfuji@linux-ipv6.org
 P:      Patrick McHardy
 M:      kaber@trash.net
 L:      netdev@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
 S:      Maintained
+F:      net/ipv4/
+F:      net/ipv6/
+F:      include/net/ip*
 
 NETWORKING [LABELED] (NetLabel, CIPSO, Labeled IPsec, SECMARK)
 P:      Paul Moore
@@ -3218,8 +3964,11 @@ NETWORKING [WIRELESS]
 P:      John W. Linville
 M:      linville@tuxdriver.com
 L:      linux-wireless@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
 S:      Maintained
+F:      net/wireless/
+F:      include/net/ieee80211*
+F:      include/net/wireless.h
 
 NETXEN (1/10) GbE SUPPORT
 P:      Dhananjay Phadke
@@ -3227,6 +3976,7 @@ M:	dhananjay@netxen.com
 L:      netdev@vger.kernel.org
 W:      http://www.netxen.com
 S:      Supported
+F:      drivers/net/netxen/
 
 NFS, SUNRPC, AND LOCKD CLIENTS
 P:      Trond Myklebust
@@ -3235,6 +3985,13 @@ L:	linux-nfs@vger.kernel.org
 W:      http://client.linux-nfs.org
 T:      git git://git.linux-nfs.org/pub/linux/nfs-2.6.git
 S:      Maintained
+F:      fs/lockd/
+F:      fs/nfs/
+F:      fs/nfs_common/
+F:      net/sunrpc/
+F:      include/linux/lockd/
+F:      include/linux/nfs*
+F:      include/linux/sunrpc/
 
 NI5010 NETWORK DRIVER
 P:      Jan-Pascal van Best
@@ -3243,6 +4000,7 @@ P:	Andreas Mohr
 M:      andi@lisas.de
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/ni5010.*
 
 NILFS2 FILESYSTEM
 P:      KONISHI Ryusuke
@@ -3250,12 +4008,17 @@ M:	konishi.ryusuke@lab.ntt.co.jp
 L:      users@nilfs.org
 W:      http://www.nilfs.org/en/
 S:      Supported
+F:      Documentation/filesystems/nilfs2.txt
+F:      fs/nilfs2/
+F:      include/linux/nilfs2_fs.h
 
 NINJA SCSI-3 / NINJA SCSI-32Bi (16bit/CardBus) PCMCIA SCSI HOST ADAPTER DRIVER
 P:      YOKOTA Hiroshi
 M:      yokota@netlab.is.tsukuba.ac.jp
 W:      http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
 S:      Maintained
+F:      Documentation/scsi/NinjaSCSI.txt
+F:      drivers/scsi/pcmcia/nsp_*
 
 NINJA SCSI-32Bi/UDE PCI/CARDBUS SCSI HOST ADAPTER DRIVER
 P:      GOTO Masanori
@@ -3264,6 +4027,8 @@ P:	YOKOTA Hiroshi
 M:      yokota@netlab.is.tsukuba.ac.jp
 W:      http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
 S:      Maintained
+F:      Documentation/scsi/NinjaSCSI.txt
+F:      drivers/scsi/nsp32*
 
 NTFS FILESYSTEM
 P:      Anton Altaparmakov
@@ -3271,43 +4036,55 @@ M:	aia21@cantab.net
 L:      linux-ntfs-dev@lists.sourceforge.net
 L:      linux-kernel@vger.kernel.org
 W:      http://www.linux-ntfs.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/aia21/ntfs-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs-2.6.git
 S:      Maintained
+F:      Documentation/filesystems/ntfs.txt
+F:      fs/ntfs/
 
 NVIDIA (rivafb and nvidiafb) FRAMEBUFFER DRIVER
 P:      Antonino Daplas
 M:      adaplas@gmail.com
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/riva/
+F:      drivers/video/nvidia/
 
 OMFS FILESYSTEM
 P:      Bob Copeland
 M:      me@bobcopeland.com
 L:      linux-karma-devel@lists.sourceforge.net
 S:      Maintained
+F:      Documentation/filesystems/omfs.txt
+F:      fs/omfs/
 
 OMNIKEY CARDMAN 4000 DRIVER
 P:      Harald Welte
 M:      laforge@gnumonks.org
 S:      Maintained
+F:      drivers/char/pcmcia/cm4000_cs.c
+F:      include/linux/cm4000_cs.h
 
 OMNIKEY CARDMAN 4040 DRIVER
 P:      Harald Welte
 M:      laforge@gnumonks.org
 S:      Maintained
+F:      drivers/char/pcmcia/cm4040_cs.*
 
 OMNIVISION OV7670 SENSOR DRIVER
 P:      Jonathan Corbet
 M:      corbet@lwn.net
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      drivers/media/video/ov7670.c
 
 ONENAND FLASH DRIVER
 P:      Kyungmin Park
 M:      kyungmin.park@samsung.com
 L:      linux-mtd@lists.infradead.org
 S:      Maintained
+F:      drivers/mtd/onenand/
+F:      include/linux/mtd/onenand*.h
 
 ONSTREAM SCSI TAPE DRIVER
 P:      Willem Riede
@@ -3315,18 +4092,25 @@ M:	osst@riede.org
 L:      osst-users@lists.sourceforge.net
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/osst*
+F:      drivers/scsi/st*
 
 OPENCORES I2C BUS DRIVER
 P:      Peter Korsgaard
 M:      jacmet@sunsite.dk
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      Documentation/i2c/busses/i2c-ocores
+F:      drivers/i2c/busses/i2c-ocores.c
 
 OPROFILE
 P:      Robert Richter
 M:      robert.richter@amd.com
 L:      oprofile-list@lists.sf.net
 S:      Maintained
+F:      arch/*/oprofile/
+F:      drivers/oprofile/
+F:      include/linux/oprofile.h
 
 ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
 P:      Mark Fasheh
@@ -3337,6 +4121,9 @@ L:	ocfs2-devel@oss.oracle.com (moderated for non-subscribers)
 W:      http://oss.oracle.com/projects/ocfs2/
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2.git
 S:      Supported
+F:      Documentation/filesystems/ocfs2.txt
+F:      Documentation/filesystems/dlmfs.txt
+F:      fs/ocfs2/
 
 ORINOCO DRIVER
 P:      Pavel Roskin
@@ -3348,6 +4135,7 @@ L:	orinoco-users@lists.sourceforge.net
 L:      orinoco-devel@lists.sourceforge.net
 W:      http://www.nongnu.org/orinoco/
 S:      Maintained
+F:      drivers/net/wireless/orinoco/
 
 OSD LIBRARY
 P:      Boaz Harrosh
@@ -3356,7 +4144,7 @@ P:	Benny Halevy
 M:      bhalevy@panasas.com
 L:      osd-dev@open-osd.org
 W:      http://open-osd.org
-T:      git://git.open-osd.org/open-osd.git
+T:      git git://git.open-osd.org/open-osd.git
 S:      Maintained
 
 P54 WIRELESS DRIVER
@@ -3364,25 +4152,29 @@ P:	Michael Wu
 M:      flamingice@sourmilk.net
 L:      linux-wireless@vger.kernel.org
 W:      http://prism54.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
 S:      Maintained
+F:      drivers/net/wireless/p54/
 
 PA SEMI ETHERNET DRIVER
 P:      Olof Johansson
 M:      olof@lixom.net
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/pasemi_mac.*
 
 PA SEMI SMBUS DRIVER
 P:      Olof Johansson
 M:      olof@lixom.net
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      drivers/i2c/busses/i2c-pasemi.c
 
 PANASONIC LAPTOP ACPI EXTRAS DRIVER
 P:      Harald Welte
 M:      laforge@gnumonks.org
 S:      Maintained
+F:      drivers/platform/x86/panasonic-laptop.c
 
 PANASONIC MN10300/AM33 PORT
 P:      David Howells
@@ -3392,10 +4184,16 @@ M:	yasutake.koichi@jp.panasonic.com
 L:      linux-am33-list@redhat.com (moderated for non-subscribers)
 W:      ftp://ftp.redhat.com/pub/redhat/gnupro/AM33/
 S:      Maintained
+F:      Documentation/mn10300/
+F:      arch/mn10300/
 
 PARALLEL PORT SUPPORT
 L:      linux-parport@lists.infradead.org (subscribers-only)
 S:      Orphan
+F:      drivers/parport/
+F:      include/linux/parport*.h
+F:      drivers/char/ppdev.c
+F:      include/linux/ppdev.h
 
 PARAVIRT_OPS INTERFACE
 P:      Jeremy Fitzhardinge
@@ -3409,6 +4207,9 @@ M:	rusty@rustcorp.com.au
 L:      virtualization@lists.osdl.org
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      Documentation/ia64/paravirt_ops.txt
+F:      arch/*/kernel/paravirt*
+F:      arch/*/include/asm/paravirt.h
 
 PARIDE DRIVERS FOR PARALLEL PORT IDE DEVICES
 P:      Tim Waugh
@@ -3416,6 +4217,8 @@ M:	tim@cyberelk.net
 L:      linux-parport@lists.infradead.org (subscribers-only)
 W:      http://www.torque.net/linux-pp.html
 S:      Maintained
+F:      Documentation/blockdev/paride.txt
+F:      drivers/block/paride/
 
 PARISC ARCHITECTURE
 P:      Kyle McMartin
@@ -3424,24 +4227,31 @@ P:	Helge Deller
 M:      deller@gmx.de
 L:      linux-parisc@vger.kernel.org
 W:      http://www.parisc-linux.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
 S:      Maintained
+F:      arch/parisc/
+F:      drivers/parisc/
 
 PC87360 HARDWARE MONITORING DRIVER
 P:      Jim Cromie
 M:      jim.cromie@gmail.com
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/pc87360
+F:      drivers/hwmon/pc87360.c
 
 PC8736x GPIO DRIVER
 P:      Jim Cromie
 M:      jim.cromie@gmail.com
 S:      Maintained
+F:      drivers/char/pc8736x_gpio.c
 
 PCA9532 LED DRIVER
 P:      Riku Voipio
 M:      riku.voipio@iki.fi
 S:      Maintained
+F:      drivers/leds/leds-pca9532.c
+F:      include/linux/leds-pca9532.h
 
 PCI ERROR RECOVERY
 P:      Linas Vepstas
@@ -3449,63 +4259,82 @@ M:	linas@austin.ibm.com
 L:      linux-kernel@vger.kernel.org
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      Documentation/PCI/pci-error-recovery.txt
+F:      Documentation/powerpc/eeh-pci-error-recovery.txt
 
 PCI SUBSYSTEM
 P:      Jesse Barnes
 M:      jbarnes@virtuousgeek.org
 L:      linux-kernel@vger.kernel.org
 L:      linux-pci@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git
 S:      Supported
+F:      Documentation/PCI/
+F:      drivers/pci/
+F:      include/linux/pci*
 
 PCIE HOTPLUG DRIVER
 P:      Kristen Carlson Accardi
 M:      kristen.c.accardi@intel.com
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      drivers/pci/pcie/
 
 PCMCIA SUBSYSTEM
 P:      Linux PCMCIA Team
 L:      linux-pcmcia@lists.infradead.org
 W:      http://lists.infradead.org/mailman/listinfo/linux-pcmcia
-T:      git kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
 S:      Maintained
+F:      Documentation/pcmcia/
+F:      drivers/pcmcia/
+F:      include/pcmcia/
 
 PCNET32 NETWORK DRIVER
 P:      Don Fry
 M:      pcnet32@verizon.net
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/pcnet32.c
 
 PER-TASK DELAY ACCOUNTING
 P:      Balbir Singh
 M:      balbir@linux.vnet.ibm.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      include/linux/delayacct.h
+F:      kernel/delayacct.c
 
 PERSONALITY HANDLING
 P:      Christoph Hellwig
 M:      hch@infradead.org
 L:      linux-abi-devel@lists.sourceforge.net
 S:      Maintained
+F:      include/linux/personality.h
 
 PHRAM MTD DRIVER
 P:      Joern Engel
 M:      joern@lazybastard.org
 L:      linux-mtd@lists.infradead.org
 S:      Maintained
+F:      drivers/mtd/devices/phram.c
 
 PKTCDVD DRIVER
 P:      Peter Osterlund
 M:      petero2@telia.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/block/pktcdvd.c
+F:      include/linux/pktcdvd.h
 
 POSIX CLOCKS and TIMERS
 P:      Thomas Gleixner
 M:      tglx@linutronix.de
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      fs/timerfd.c
+F:      include/linux/timer*
+F:      kernel/*timer*
 
 POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
 P:      Anton Vorontsov
@@ -3513,8 +4342,10 @@ M:	cbou@mail.ru
 P:      David Woodhouse
 M:      dwmw2@infradead.org
 L:      linux-kernel@vger.kernel.org
-T:      git git.infradead.org/battery-2.6.git
+T:      git git://git.infradead.org/battery-2.6.git
 S:      Maintained
+F:      include/linux/power_supply.h
+F:      drivers/power/power_supply*
 
 PNP SUPPORT
 P:      Adam Belay
@@ -3522,33 +4353,42 @@ M:	abelay@mit.edu
 P:      Bjorn Helgaas
 M:      bjorn.helgaas@hp.com
 S:      Maintained
+F:      drivers/pnp/
 
 PNXxxxx I2C DRIVER
 P:      Vitaly Wool
 M:      vitalywool@gmail.com
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      drivers/i2c/busses/i2c-pnx.c
 
 PPP PROTOCOL DRIVERS AND COMPRESSORS
 P:      Paul Mackerras
 M:      paulus@samba.org
 L:      linux-ppp@vger.kernel.org
 S:      Maintained
+F:      drivers/net/ppp_*
 
 PPP OVER ATM (RFC 2364)
 P:      Mitchell Blank Jr
 M:      mitch@sfgoth.com
 S:      Maintained
+F:      net/atm/pppoatm.c
+F:      include/linux/atmppp.h
 
 PPP OVER ETHERNET
 P:      Michal Ostrowski
 M:      mostrows@earthlink.net
 S:      Maintained
+F:      drivers/net/pppoe.c
+F:      drivers/net/pppox.c
 
 PPP OVER L2TP
 P:      James Chapman
 M:      jchapman@katalix.com
 S:      Maintained
+F:      drivers/net/pppol2tp.c
+F:      include/linux/if_pppol2tp.h
 
 PREEMPTIBLE KERNEL
 P:      Robert Love
@@ -3557,6 +4397,8 @@ L:	linux-kernel@vger.kernel.org
 L:      kpreempt-tech@lists.sourceforge.net
 W:      ftp://ftp.kernel.org/pub/linux/kernel/people/rml/preempt-kernel
 S:      Supported
+F:      Documentation/preempt-locking.txt
+F:      include/linux/preempt.h
 
 PRISM54 WIRELESS DRIVER
 P:      Luis R. Rodriguez
@@ -3564,6 +4406,7 @@ M:	mcgrof@gmail.com
 L:      linux-wireless@vger.kernel.org
 W:      http://prism54.org
 S:      Maintained
+F:      drivers/net/wireless/prism54/
 
 PROMISE DC4030 CACHING DISK CONTROLLER DRIVER
 P:      Peter Denison
@@ -3576,6 +4419,7 @@ P:	Mikael Pettersson
 M:      mikpe@it.uu.se
 L:      linux-ide@vger.kernel.org
 S:      Maintained
+F:      drivers/ata/sata_promise.*
 
 PS3 NETWORK SUPPORT
 P:      Masakazu Mokuno
@@ -3583,6 +4427,7 @@ M:	mokuno@sm.sony.co.jp
 L:      netdev@vger.kernel.org
 L:      cbe-oss-dev@ozlabs.org
 S:      Supported
+F:      drivers/net/ps3_gelic_net.*
 
 PS3 PLATFORM SUPPORT
 P:      Geoff Levand
@@ -3590,6 +4435,13 @@ M:	geoffrey.levand@am.sony.com
 L:      linuxppc-dev@ozlabs.org
 L:      cbe-oss-dev@ozlabs.org
 S:      Supported
+F:      arch/powerpc/boot/ps3*
+F:      arch/powerpc/include/asm/lv1call.h
+F:      arch/powerpc/include/asm/ps3*.h
+F:      arch/powerpc/platforms/ps3/
+F:      drivers/*/ps3*
+F:      drivers/ps3/
+F:      drivers/usb/host/*ps3.c
 
 PS3VRAM DRIVER
 P:      Jim Paris
@@ -3603,8 +4455,10 @@ M:	isely@pobox.com
 L:      pvrusb2@isely.net       (subscribers-only)
 L:      linux-media@vger.kernel.org
 W:      http://www.isely.net/pvrusb2/
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      Documentation/video4linux/README.pvrusb2
+F:      drivers/media/video/pvrusb2/
 
 PXA2xx/PXA3xx SUPPORT
 P:      Eric Miao
@@ -3613,6 +4467,12 @@ P:	Russell King
 M:      linux@arm.linux.org.uk
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 S:      Maintained
+F:      arch/arm/mach-pxa/
+F:      drivers/pcmcia/pxa2xx*
+F:      drivers/spi/pxa2xx*
+F:      drivers/usb/gadget/pxa2*
+F:      include/sound/pxa2xx-lib.h
+F:      sound/soc/pxa/pxa2xx*
 
 PXA168 SUPPORT
 P:      Eric Miao
@@ -3620,14 +4480,14 @@ M:	eric.miao@marvell.com
 P:      Jason Chagas
 M:      jason.chagas@marvell.com
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-T:      git kernel.org:/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
 S:      Supported
 
 PXA910 SUPPORT
 P:      Eric Miao
 M:      eric.miao@marvell.com
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-T:      git kernel.org:/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
 S:      Supported
 
 PXA MMCI DRIVER
@@ -3644,12 +4504,16 @@ P:	Andrew Vasquez
 M:      linux-driver@qlogic.com
 L:      linux-scsi@vger.kernel.org
 S:      Supported
+F:      Documentation/scsi/LICENSE.qla2xxx
+F:      drivers/scsi/qla2xxx/
 
 QLOGIC QLA3XXX NETWORK DRIVER
 P:      Ron Mercer
 M:      linux-driver@qlogic.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      Documentation/networking/LICENSE.qla3xxx
+F:      drivers/net/qla3xxx.*
 
 QLOGIC QLGE 10Gb ETHERNET DRIVER
 P:      Ron Mercer
@@ -3657,6 +4521,7 @@ M:	linux-driver@qlogic.com
 M:      ron.mercer@qlogic.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/qlge/
 
 QNX4 FILESYSTEM
 P:      Anders Larsen
@@ -3664,18 +4529,24 @@ M:	al@alarsen.net
 L:      linux-kernel@vger.kernel.org
 W:      http://www.alarsen.net/linux/qnx4fs/
 S:      Maintained
+F:      fs/qnx4/
+F:      include/linux/qnx4_fs.h
+F:      include/linux/qnxtypes.h
 
 RADEON FRAMEBUFFER DISPLAY DRIVER
 P:      Benjamin Herrenschmidt
 M:      benh@kernel.crashing.org
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/aty/radeon*
+F:      include/linux/radeonfb.h
 
 RAGE128 FRAMEBUFFER DISPLAY DRIVER
 P:      Paul Mackerras
 M:      paulus@samba.org
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/aty/aty128fb.c
 
 RALINK RT2X00 WIRELESS LAN DRIVER
 P:      rt2x00 project
@@ -3683,36 +4554,43 @@ L:	linux-wireless@vger.kernel.org
 L:      users@rt2x00.serialmonkey.com
 W:      http://rt2x00.serialmonkey.com/
 S:      Maintained
-T:      git kernel.org:/pub/scm/linux/kernel/git/ivd/rt2x00.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/ivd/rt2x00.git
 F:      drivers/net/wireless/rt2x00/
 
 RAMDISK RAM BLOCK DEVICE DRIVER
 P:      Nick Piggin
 M:      npiggin@suse.de
 S:      Maintained
+F:      Documentation/blockdev/ramdisk.txt
+F:      drivers/block/brd.c
 
 RANDOM NUMBER DRIVER
 P:      Matt Mackall
 M:      mpm@selenic.com
 S:      Maintained
+F:      drivers/char/random.c
 
 RAPIDIO SUBSYSTEM
 P:      Matt Porter
 M:      mporter@kernel.crashing.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/rapidio/
 
 RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER
 P:      Corey Thomas
 M:      coreythomas@charter.net
 L:      linux-wireless@vger.kernel.org
 S:      Maintained
+F:      drivers/net/wireless/ray*
 
 RCUTORTURE MODULE
 P:      Josh Triplett
 M:      josh@freedesktop.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/RCU/torture.txt
+F:      kernel/rcutorture.c
 
 RDC R-321X SoC
 P:      Florian Fainelli
@@ -3725,12 +4603,14 @@ P:	Florian Fainelli
 M:      florian.fainelli@telecomint.eu
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/r6040.c
 
 RDS - RELIABLE DATAGRAM SOCKETS
 P:      Andy Grover
 M:      andy.grover@oracle.com
 L:      rds-devel@oss.oracle.com
 S:      Supported
+F:      net/rds/
 
 READ-COPY UPDATE (RCU)
 P:      Dipankar Sarma
@@ -3738,37 +4618,54 @@ M:	dipankar@in.ibm.com
 W:      http://www.rdrop.com/users/paulmck/rclock/
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      Documentation/RCU/rcu.txt
+F:      Documentation/RCU/rcuref.txt
+F:      include/linux/rcupdate.h
+F:      include/linux/srcu.h
+F:      kernel/rcupdate.c
 
 REAL TIME CLOCK DRIVER
 P:      Paul Gortmaker
 M:      p_gortmaker@yahoo.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/rtc.txt
+F:      drivers/rtc/
+F:      include/linux/rtc.h
 
 REAL TIME CLOCK (RTC) SUBSYSTEM
 P:      Alessandro Zummo
 M:      a.zummo@towertech.it
 L:      rtc-linux@googlegroups.com
 S:      Maintained
+F:      Documentation/rtc.txt
+F:      drivers/rtc/
+F:      include/linux/rtc.h
 
 REISERFS FILE SYSTEM
 L:      reiserfs-devel@vger.kernel.org
 S:      Supported
+F:      fs/reiserfs/
 
 RFKILL
 P:      Ivo van Doorn
 M:      IvDoorn@gmail.com
 L:      netdev@vger.kernel.org
 S:      Maintained
-F:      net/rfkill
+F       Documentation/rfkill.txt
+F:      net/rfkill/
 
 RISCOM8 DRIVER
 S:      Orphan
+F:      Documentation/serial/riscom8.txt
+F:      drivers/char/riscom8*
 
 ROCKETPORT DRIVER
 P:      Comtrol Corp.
 W:      http://www.comtrol.com
 S:      Maintained
+F:      Documentation/serial/rocket.txt
+F:      drivers/char/rocket*
 
 ROSE NETWORK LAYER
 P:      Ralf Baechle
@@ -3776,32 +4673,38 @@ M:	ralf@linux-mips.org
 L:      linux-hams@vger.kernel.org
 W:      http://www.linux-ax25.org/
 S:      Maintained
+F:      include/linux/rose.h
+F:      include/net/rose.h
+F:      net/rose/
 
 RTL8180 WIRELESS DRIVER
 P:      John W. Linville
 M:      linville@tuxdriver.com
 L:      linux-wireless@vger.kernel.org
 W:      http://linuxwireless.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-testing.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
 S:      Maintained
+F:      drivers/net/wireless/rtl818*
 
 RTL8187 WIRELESS DRIVER
-P:       Herton Ronaldo Krzesinski
-M:      herton@mandriva.com.br
-P:      Hin-Tak Leung
-M       htl10@users.sourceforge.net
-P:      Larry Finger
-M:      Larry.Finger@lwfinger.net
-L:      linux-wireless@vger.kernel.org
-W:      http://linuxwireless.org/
-T:      git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-testing.git
-S:      Maintained
+P:      Herton Ronaldo Krzesinski
+M:      herton@mandriva.com.br
+P:      Hin-Tak Leung
+M:      htl10@users.sourceforge.net
+P:      Larry Finger
+M:      Larry.Finger@lwfinger.net
+L:      linux-wireless@vger.kernel.org
+W:      http://linuxwireless.org/
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
+S:      Maintained
+F:      drivers/net/wireless/rtl818x/rtl8187*
 
 S3 SAVAGE FRAMEBUFFER DRIVER
 P:      Antonino Daplas
 M:      adaplas@gmail.com
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/savage/
 
 S390
 P:      Martin Schwidefsky
@@ -3812,6 +4715,7 @@ M:	linux390@de.ibm.com
 L:      linux-s390@vger.kernel.org
 W:      http://www.ibm.com/developerworks/linux/linux390/
 S:      Supported
+F:      arch/s390/
 
 S390 NETWORK DRIVERS
 P:      Ursula Braun
@@ -3822,6 +4726,7 @@ M:	linux390@de.ibm.com
 L:      linux-s390@vger.kernel.org
 W:      http://www.ibm.com/developerworks/linux/linux390/
 S:      Supported
+F:      drivers/s390/net/
 
 S390 ZCRYPT DRIVER
 P:      Felix Beck
@@ -3831,6 +4736,7 @@ M:	ralph.wuerthner@de.ibm.com
 M:      linux390@de.ibm.com
 L:      linux-s390@vger.kernel.org
 S:      Supported
+F:      drivers/s390/crypto/
 
 S390 ZFCP DRIVER
 P:      Christof Schmitt
@@ -3841,6 +4747,8 @@ M:	linux390@de.ibm.com
 L:      linux-s390@vger.kernel.org
 W:      http://www.ibm.com/developerworks/linux/linux390/
 S:      Supported
+F:      Documentation/s390/zfcpdump.txt
+F:      drivers/s390/scsi/zfcp_*
 
 S390 IUCV NETWORK LAYER
 P:      Ursula Braun
@@ -3849,6 +4757,9 @@ M:	linux390@de.ibm.com
 L:      linux-s390@vger.kernel.org
 W:      http://www.ibm.com/developerworks/linux/linux390/
 S:      Supported
+F:      drivers/s390/net/*iucv*
+F:      include/net/iucv/
+F:      net/iucv/
 
 S3C24XX SD/MMC Driver
 P:      Ben Dooks
@@ -3856,19 +4767,24 @@ M:	ben-linux@fluff.org
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      drivers/mmc/host/s3cmci.*
 
 SAA7146 VIDEO4LINUX-2 DRIVER
 P:      Michael Hunold
 M:      michael@mihu.de
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://www.mihu.de/linux/saa7146
 S:      Maintained
+F:      drivers/media/common/saa7146*
+F:      drivers/media/video/*7146*
+F:      include/media/*7146*
 
 SC1200 WDT DRIVER
 P:      Zwane Mwaikambo
 M:      zwane@arm.linux.org.uk
 S:      Maintained
+F:      drivers/watchdog/sc1200wdt.c
 
 SCHEDULER
 P:      Ingo Molnar
@@ -3877,6 +4793,8 @@ P:	Peter Zijlstra
 M:      peterz@infradead.org
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      kernel/sched*
+F:      include/linux/sched.h
 
 SCSI CDROM DRIVER
 P:      Jens Axboe
@@ -3884,6 +4802,7 @@ M:	axboe@kernel.dk
 L:      linux-scsi@vger.kernel.org
 W:      http://www.kernel.dk
 S:      Maintained
+F:      drivers/scsi/sr*
 
 SCSI SG DRIVER
 P:      Doug Gilbert
@@ -3891,21 +4810,27 @@ M:	dgilbert@interlog.com
 L:      linux-scsi@vger.kernel.org
 W:      http://www.torque.net/sg
 S:      Maintained
+F:      drivers/scsi/sg.c
+F:      include/scsi/sg.h
 
 SCSI SUBSYSTEM
 P:      James E.J. Bottomley
 M:      James.Bottomley@HansenPartnership.com
 L:      linux-scsi@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
-T:      git kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git
-T:      git kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-pending-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-pending-2.6.git
 S:      Maintained
+F:      drivers/scsi/
+F:      include/scsi/
 
 SCSI TAPE DRIVER
 P:      Kai Mäkisara
 M:      Kai.Makisara@kolumbus.fi
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      Documentation/scsi/st.txt
+F:      drivers/scsi/st*
 
 SCTP PROTOCOL
 P:      Vlad Yasevich
@@ -3915,27 +4840,41 @@ M:	sri@us.ibm.com
 L:      linux-sctp@vger.kernel.org
 W:      http://lksctp.sourceforge.net
 S:      Supported
+F:      Documentation/networking/sctp.txt
+F:      include/linux/sctp.h
+F:      include/net/sctp/
+F:      net/sctp/
 
 SCx200 CPU SUPPORT
 P:      Jim Cromie
 M:      jim.cromie@gmail.com
 S:      Odd Fixes
+F:      Documentation/i2c/busses/scx200_acb
+F:      arch/x86/kernel/scx200_32.c
+F:      drivers/watchdog/scx200_wdt.c
+F:      drivers/i2c/busses/scx200*
+F:      drivers/mtd/maps/scx200_docflash.c
+F:      include/linux/scx200.h
 
 SCx200 GPIO DRIVER
 P:      Jim Cromie
 M:      jim.cromie@gmail.com
 S:      Maintained
+F:      drivers/char/scx200_gpio.c
+F:      include/linux/scx200_gpio.h
 
 SCx200 HRT CLOCKSOURCE DRIVER
 P:      Jim Cromie
 M:      jim.cromie@gmail.com
 S:      Maintained
+F:      drivers/clocksource/scx200_hrt.c
 
 SDRICOH_CS MMC/SD HOST CONTROLLER INTERFACE DRIVER
 P:      Sascha Sommer
 M:      saschasommer@freenet.de
 L:      sdricohcs-devel@lists.sourceforge.net (subscribers-only)
 S:      Maintained
+F:      drivers/mmc/host/sdricoh_cs.c
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
 P:      Pierre Ossman
@@ -3949,16 +4888,17 @@ M:	avorontsov@ru.mvista.com
 L:      linuxppc-dev@ozlabs.org
 L:      sdhci-devel@lists.ossman.eu
 S:      Maintained
+F:      drivers/mmc/host/sdhci.*
 
 SECURITY SUBSYSTEM
-F:      security/
 P:      James Morris
 M:      jmorris@namei.org
 L:      linux-kernel@vger.kernel.org
 L:      linux-security-module@vger.kernel.org (suggested Cc:)
-T:      git kernel.org:pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
+T:      git git://www.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
 W:      http://security.wiki.kernel.org/
 S:      Supported
+F:      security/
 
 SECURITY CONTACT
 P:      Security Officers
@@ -3973,31 +4913,39 @@ M:	jmorris@namei.org
 P:      Eric Paris
 M:      eparis@parisplace.org
 L:      linux-kernel@vger.kernel.org (kernel issues)
-L:      selinux@tycho.nsa.gov (subscribers-only, general discussion)
+L:      selinux@tycho.nsa.gov (subscribers-only, general discussion)
 W:      http://selinuxproject.org
-T:      git kernel.org:pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
 S:      Supported
+F:      include/linux/selinux*
+F:      security/selinux/
 
 SENSABLE PHANTOM
 P:      Jiri Slaby
 M:      jirislaby@gmail.com
 S:      Maintained
+F:      drivers/misc/phantom.c
+F:      include/linux/phantom.h
 
 SERIAL ATA (SATA) SUBSYSTEM
 P:      Jeff Garzik
 M:      jgarzik@pobox.com
 L:      linux-ide@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
 S:      Supported
+F:      drivers/ata/
+F:      include/linux/ata.h
+F:      include/linux/libata.h
 
 SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER
 P:      Sathya Perla
 M:      sathyap@serverengines.com
-P:      Subbu Seetharaman
-M:      subbus@serverengines.com
-L:      netdev@vger.kernel.org
-W:      http://www.serverengines.com
-S:      Supported
+P:      Subbu Seetharaman
+M:      subbus@serverengines.com
+L:      netdev@vger.kernel.org
+W:      http://www.serverengines.com
+S:      Supported
+F:      drivers/net/benet/
 
 SFC NETWORK DRIVER
 P:      Steve Hodgson
@@ -4005,17 +4953,22 @@ P:	Ben Hutchings
 P:      Robert Stonehouse
 M:      linux-net-drivers@solarflare.com
 S:      Supported
+F:      drivers/net/sfc/
 
 SGI GRU DRIVER
 P:      Jack Steiner
 M:      steiner@sgi.com
 S:      Maintained
+F:      drivers/misc/sgi-gru/
 
 SGI SN-IA64 (Altix) SERIAL CONSOLE DRIVER
 P:      Pat Gefre
 M:      pfg@sgi.com
 L:      linux-ia64@vger.kernel.org
 S:      Supported
+F:      Documentation/ia64/serial.txt
+F:      drivers/serial/ioc?_serial.c
+F:      include/linux/ioc?.h
 
 SGI VISUAL WORKSTATION 320 AND 540
 P:      Andrey Panin
@@ -4023,11 +4976,13 @@ M:	pazke@donpac.ru
 L:      linux-visws-devel@lists.sf.net
 W:      http://linux-visws.sf.net
 S:      Maintained for 2.6.
+F:      Documentation/sgi-visws.txt
 
 SGI XP/XPC/XPNET DRIVER
-P:      Dean Nelson
-M:      dcn@sgi.com
+P:      Robin Holt
+M:      holt@sgi.com
 S:      Maintained
+F:      drivers/misc/sgi-xp/
 
 SHARP LH SUPPORT (LH7952X & LH7A40X)
 P:      Marc Singer
@@ -4035,12 +4990,18 @@ M:	elf@buici.com
 W:      http://projects.buici.com/arm
 L:      linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
 S:      Maintained
+F:      Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen
+F:      arch/arm/mach-lh7a40x/
+F:      drivers/serial/serial_lh7a40x.c
+F:      drivers/usb/gadget/lh7a40*
+F:      drivers/usb/host/ohci-lh7a40*
 
 SHPC HOTPLUG DRIVER
 P:      Kristen Carlson Accardi
 M:      kristen.c.accardi@intel.com
 L:      linux-pci@vger.kernel.org
 S:      Supported
+F:      drivers/pci/hotplug/shpchp*
 
 SIMTEC EB110ATX (Chalice CATS)
 P:      Ben Dooks
@@ -4048,6 +5009,7 @@ P:	Vincent Sanders
 M:      support@simtec.co.uk
 W:      http://www.simtec.co.uk/products/EB110ATX/
 S:      Supported
+F:      arch/arm/mach-ebsa110/
 
 SIMTEC EB2410ITX (BAST)
 P:      Ben Dooks
@@ -4055,12 +5017,16 @@ P:	Vincent Sanders
 M:      support@simtec.co.uk
 W:      http://www.simtec.co.uk/products/EB2410ITX/
 S:      Supported
+F:      arch/arm/mach-s3c2410/
+F:      drivers/*/*s3c2410*
+F:      drivers/*/*/*s3c2410*
 
 SIS 190 ETHERNET DRIVER
 P:      Francois Romieu
 M:      romieu@fr.zoreil.com
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/sis190.c
 
 SIS 900/7016 FAST ETHERNET DRIVER
 P:      Daniele Venzano
@@ -4068,30 +5034,39 @@ M:	venza@brownhat.org
 W:      http://www.brownhat.org/sis900.html
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/sis900.*
 
 SIS 96X I2C/SMBUS DRIVER
 P:      Mark M. Hoffman
 M:      mhoffman@lightlink.com
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      Documentation/i2c/busses/i2c-sis96x
+F:      drivers/i2c/busses/i2c-sis96x.c
 
 SIS FRAMEBUFFER DRIVER
 P:      Thomas Winischhofer
 M:      thomas@winischhofer.net
 W:      http://www.winischhofer.net/linuxsisvga.shtml
 S:      Maintained
+F:      Documentation/fb/sisfb.txt
+F:      drivers/video/sis/
+F:      include/video/sisfb.h
 
 SIS USB2VGA DRIVER
 P:      Thomas Winischhofer
 M:      thomas@winischhofer.net
 W:      http://www.winischhofer.at/linuxsisusbvga.shtml
 S:      Maintained
+F:      drivers/usb/misc/sisusbvga/
 
 SKGE, SKY2 10/100/1000 GIGABIT ETHERNET DRIVERS
 P:      Stephen Hemminger
 M:      shemminger@linux-foundation.org
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/skge.*
+F:      drivers/net/sky2.*
 
 SLAB ALLOCATOR
 P:      Christoph Lameter
@@ -4102,34 +5077,43 @@ P:	Matt Mackall
 M:      mpm@selenic.com
 L:      linux-mm@kvack.org
 S:      Maintained
+F:      include/linux/sl?b*.h
+F:      mm/sl?b.c
 
 SMC91x ETHERNET DRIVER
 P:      Nicolas Pitre
 M:      nico@cam.org
 S:      Maintained
+F:      drivers/net/smc91x.*
 
 SMSC47B397 HARDWARE MONITOR DRIVER
 P:      Mark M. Hoffman
 M:      mhoffman@lightlink.com
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/smsc47b397
+F:      drivers/hwmon/smsc47b397.c
 
 SMSC911x ETHERNET DRIVER
 P:      Steve Glendinning
 M:      steve.glendinning@smsc.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      include/linux/smsc911x.h
+F:      drivers/net/smsc911x.*
 
 SMSC9420 PCI ETHERNET DRIVER
 P:      Steve Glendinning
 M:      steve.glendinning@smsc.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/smsc9420.*
 
 SMX UIO Interface
 P:      Ben Nizette
 M:      bn@niasdigital.com
 S:      Maintained
+F:      drivers/uio/uio_smx.c
 
 SN-IA64 (Itanium) SUB-PLATFORM
 P:      Jes Sorensen
@@ -4138,36 +5122,45 @@ L:	linux-altix@sgi.com
 L:      linux-ia64@vger.kernel.org
 W:      http://www.sgi.com/altix
 S:      Maintained
+F:      arch/ia64/sn/
 
 SOC-CAMERA V4L2 SUBSYSTEM
 P:      Guennadi Liakhovetski
 M:      g.liakhovetski@gmx.de
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:      Maintained
+F:      include/media/v4l2*
+F:      drivers/media/video/v4l2*
 
 SOEKRIS NET48XX LED SUPPORT
 P:      Chris Boot
 M:      bootc@bootc.net
 S:      Maintained
+F:      drivers/leds/leds-net48xx.c
 
 SOFTWARE RAID (Multiple Disks) SUPPORT
 P:      Neil Brown
 M:      neilb@suse.de
 L:      linux-raid@vger.kernel.org
 S:      Supported
+F:      drivers/md/
+F:      include/linux/raid/
 
 SONIC NETWORK DRIVER
 P:      Thomas Bogendoerfer
 M:      tsbogend@alpha.franken.de
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/sonic.*
 
 SONICS SILICON BACKPLANE DRIVER (SSB)
 P:      Michael Buesch
 M:      mb@bu3sch.de
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/ssb/
+F:      include/linux/ssb/
 
 SONY VAIO CONTROL DEVICE DRIVER
 P:      Mattia Dongili
@@ -4175,6 +5168,10 @@ M:	malattia@linux.it
 L:      linux-acpi@vger.kernel.org
 W:      http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
 S:      Maintained
+F:      Documentation/laptops/sony-laptop.txt
+F:      drivers/char/sonypi.c
+F:      drivers/platform/x86/sony-laptop.c
+F:      include/linux/sony-laptop.h
 
 SONY MEMORYSTICK CARD SUPPORT
 P:      Alex Dubov
@@ -4182,6 +5179,7 @@ M:	oakad@yahoo.com
 L:      linux-kernel@vger.kernel.org
 W:      http://tifmxx.berlios.de/
 S:      Maintained
+F:      drivers/memstick/host/tifm_ms.c
 
 SOUND
 P:      Jaroslav Kysela
@@ -4190,36 +5188,44 @@ P:	Takashi Iwai
 M:      tiwai@suse.de
 L:      alsa-devel@alsa-project.org (subscribers-only)
 S:      Maintained
+F:      sound/
 
 SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC)
 P:      Liam Girdwood
 M:      lrg@slimlogic.co.uk
 P:      Mark Brown
 M:      broonie@opensource.wolfsonmicro.com
-T:      git opensource.wolfsonmicro.com/linux-2.6-asoc
+T:      git git://opensource.wolfsonmicro.com/linux-2.6-asoc
 L:      alsa-devel@alsa-project.org (subscribers-only)
 W:      http://alsa-project.org/main/index.php/ASoC
 S:      Supported
+F:      sound/soc/
 
 SPARC + UltraSPARC (sparc/sparc64)
 P:      David S. Miller
 M:      davem@davemloft.net
 L:      sparclinux@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6.git
-T:      git kernel.org:/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
 S:      Maintained
+F:      arch/sparc/
 
 SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER
 P:      Roger Wolff
 M:      R.E.Wolff@BitWizard.nl
-L:      linux-kernel@vger.kernel.org ?
+L:      linux-kernel@vger.kernel.org
 S:      Supported
+F:      Documentation/serial/specialix.txt
+F:      drivers/char/specialix*
 
 SPI SUBSYSTEM
 P:      David Brownell
 M:      dbrownell@users.sourceforge.net
 L:      spi-devel-general@lists.sourceforge.net
 S:      Maintained
+F:      Documentation/spi/
+F:      drivers/spi/
+F:      include/linux/spi/
 
 SPIDERNET NETWORK DRIVER for CELL
 P:      Ishizaki Kou
@@ -4228,6 +5234,8 @@ P:	Jens Osterkamp
 M:      jens@de.ibm.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      Documentation/networking/spider_net.txt
+F:      drivers/net/spider_net*
 
 SPU FILE SYSTEM
 P:      Jeremy Kerr
@@ -4236,6 +5244,8 @@ L:	linuxppc-dev@ozlabs.org
 L:      cbe-oss-dev@ozlabs.org
 W:      http://www.ibm.com/developerworks/power/cell/
 S:      Supported
+F:      Documentation/filesystems/spufs.txt
+F:      arch/powerpc/platforms/cell/spufs/
 
 SQUASHFS FILE SYSTEM
 P:      Phillip Lougher
@@ -4243,12 +5253,15 @@ M:	phillip@lougher.demon.co.uk
 L:      squashfs-devel@lists.sourceforge.net (subscribers-only)
 W:      http://squashfs.org.uk
 S:      Maintained
+F:      Documentation/filesystems/squashfs.txt
+F:      fs/squashfs/
 
 SRM (Alpha) environment access
 P:      Jan-Benedict Glaw
 M:      jbglaw@lug-owl.de
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      arch/alpha/kernel/srm_env.c
 
 STABLE BRANCH
 P:      Greg Kroah-Hartman
@@ -4264,35 +5277,46 @@ M:	gregkh@suse.de
 L:      linux-kernel@vger.kernel.org
 T:      quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
 S:      Maintained
+F:      drivers/staging/
 
 STARFIRE/DURALAN NETWORK DRIVER
 P:      Ion Badulescu
 M:      ionut@cs.columbia.edu
 S:      Maintained
+F:      drivers/net/starfire*
 
 STARMODE RADIO IP (STRIP) PROTOCOL DRIVER
 W:      http://mosquitonet.Stanford.EDU/strip.html
 S:      Orphan
+F:      drivers/net/wireless/strip.c
+F:      include/linux/if_strip.h
 
 STRADIS MPEG-2 DECODER DRIVER
 P:      Nathan Laredo
 M:      laredo@gnu.org
 W:      http://www.stradis.com/
 S:      Maintained
+F:      drivers/media/video/stradis.c
 
 SUN3/3X
 P:      Sam Creasey
 M:      sammy@sammy.net
 W:      http://sammy.net/sun3/
 S:      Maintained
+F:      arch/m68k/kernel/*sun3*
+F:      arch/m68k/sun3*/
+F:      arch/m68k/include/asm/sun3*
 
 SUPERH
 P:      Paul Mundt
 M:      lethal@linux-sh.org
 L:      linux-sh@vger.kernel.org
 W:      http://www.linux-sh.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.git
 S:      Supported
+F:      Documentation/sh/
+F:      arch/sh/
+F:      drivers/sh/
 
 SUSPEND TO RAM
 P:      Len Brown
@@ -4303,29 +5327,48 @@ P:	Rafael J. Wysocki
 M:      rjw@sisk.pl
 L:      linux-pm@lists.linux-foundation.org
 S:      Supported
+F:      Documentation/power/
+F:      arch/x86/kernel/acpi/
+F:      drivers/base/power/
+F:      kernel/power/
+F:      include/linux/suspend.h
+F:      include/linux/freezer.h
+F:      include/linux/pm.h
+F:      include/asm-*/suspend.h
 
 SVGA HANDLING
 P:      Martin Mares
 M:      mj@ucw.cz
 L:      linux-video@atrey.karlin.mff.cuni.cz
 S:      Maintained
+F:      Documentation/svga.txt
+F:      arch/x86/boot/video*
 
 SYSV FILESYSTEM
 P:      Christoph Hellwig
 M:      hch@infradead.org
 S:      Maintained
+F:      Documentation/filesystems/sysv-fs.txt
+F:      fs/sysv/
+F:      include/linux/sysv_fs.h
 
 TASKSTATS STATISTICS INTERFACE
 P:      Balbir Singh
 M:      balbir@linux.vnet.ibm.com
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/accounting/taskstats*
+F:      include/linux/taskstats*
+F:      kernel/taskstats.c
 
 TC CLASSIFIER
 P:      Jamal Hadi Salim
 M:      hadi@cyberus.ca
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      include/linux/pkt_cls.h
+F:      include/net/pkt_cls.h
+F:      net/sched/
 
 TCP LOW PRIORITY MODULE
 P:      Wong Hoi Sing, Edison
@@ -4334,6 +5377,7 @@ P:	Hung Hing Lun, Mike
 M:      hlhung3i@gmail.com
 W:      http://tcp-lp-mod.sourceforge.net/
 S:      Maintained
+F:      net/ipv4/tcp_lp.c
 
 TEHUTI ETHERNET DRIVER
 P:      Alexander Indenbaum
@@ -4342,16 +5386,19 @@ P:	Andy Gospodarek
 M:      andy@greyhouse.net
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/tehuti*
 
 Telecom Clock Driver for MCPL0010
 P:      Mark Gross
 M:      mark.gross@intel.com
 S:      Supported
+F:      drivers/char/tlclk.c
 
 TENSILICA XTENSA PORT (xtensa)
 P:      Chris Zankel
 M:      chris@zankel.net
 S:      Maintained
+F:      arch/xtensa/
 
 THINKPAD ACPI EXTRAS DRIVER
 P:      Henrique de Moraes Holschuh
@@ -4359,13 +5406,17 @@ M:	ibm-acpi@hmh.eng.br
 L:      ibm-acpi-devel@lists.sourceforge.net
 W:      http://ibm-acpi.sourceforge.net
 W:      http://thinkwiki.org/wiki/Ibm-acpi
-T:      git repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
+T:      git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
 S:      Maintained
+F:      drivers/platform/x86/thinkpad_acpi.c
 
 TI FLASH MEDIA INTERFACE DRIVER
 P:      Alex Dubov
 M:      oakad@yahoo.com
 S:      Maintained
+F:      drivers/misc/tifm*
+F:      drivers/mmc/host/tifm_sd.c
+F:      include/linux/tifm.h
 
 TI OMAP MMC INTERFACE DRIVER
 P:      Carlos Aguiar, Anderson Briglia and Syed Khasim
@@ -4373,11 +5424,13 @@ M:	linux-omap@vger.kernel.org
 W:      http://linux.omap.com
 W:      http://www.muru.com/linux/omap/
 S:      Maintained
+F:      drivers/mmc/host/omap.c
 
 TI OMAP RANDOM NUMBER GENERATOR SUPPORT
 P:      Deepak Saxena
 M:      dsaxena@plexity.net
 S:      Maintained
+F:      drivers/char/hw_random/omap-rng.c
 
 TIPC NETWORK LAYER
 P:      Per Liden
@@ -4389,8 +5442,11 @@ M:	allan.stephens@windriver.com
 L:      tipc-discussion@lists.sourceforge.net
 W:      http://tipc.sourceforge.net/
 W:      http://tipc.cslab.ericsson.net/
-T:      git tipc.cslab.ericsson.net:/pub/git/tipc.git
+T:      git git://tipc.cslab.ericsson.net/pub/git/tipc.git
 S:      Maintained
+F:      include/linux/tipc*.h
+F:      include/net/tipc/
+F:      net/tipc/
 
 TLAN NETWORK DRIVER
 P:      Samuel Chessman
@@ -4398,6 +5454,8 @@ M:	chessman@tux.org
 L:      tlan-devel@lists.sourceforge.net (subscribers-only)
 W:      http://sourceforge.net/projects/tlan/
 S:      Maintained
+F:      Documentation/networking/tlan.txt
+F:      drivers/net/tlan.*
 
 TOMOYO SECURITY MODULE
 P:      Kentaro Takeda
@@ -4411,9 +5469,11 @@ L:	tomoyo-users@lists.sourceforge.jp (subscribers-only, for users in Japanese)
 W:      http://tomoyo.sourceforge.jp/
 T:      quilt http://svn.sourceforge.jp/svnroot/tomoyo/trunk/2.2.x/tomoyo-lsm/patches/
 S:      Maintained
+F:      security/tomoyo/
 
 TOSHIBA ACPI EXTRAS DRIVER
 S:      Orphan
+F:      drivers/platform/x86/toshiba_acpi.c
 
 TOSHIBA SMM DRIVER
 P:      Jonathan Buzzard
@@ -4421,11 +5481,14 @@ M:	jonathan@buzzard.org.uk
 L:      tlinux-users@tce.toshiba-dme.co.jp
 W:      http://www.buzzard.org.uk/toshiba/
 S:      Maintained
+F:      drivers/char/toshiba.c
+F:      include/linux/toshiba.h
 
 TMIO MMC DRIVER
 P:      Ian Molton
 M:      ian@mnementh.co.uk
 S:      Maintained
+F:      drivers/mmc/host/tmio_mmc.*
 
 TPM DEVICE DRIVER
 P:      Debora Velarde
@@ -4438,12 +5501,13 @@ M:	m.selhorst@sirrix.com
 W:      http://www.sirrix.com
 L:      tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/char/tpm/
 
 TRIVIAL PATCHES
 P:      Jiri Kosina
 M:      trivial@kernel.org
 L:      linux-kernel@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jikos/trivial.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git
 S:      Maintained
 
 TTY LAYER
@@ -4459,6 +5523,7 @@ P:	Kyle McMartin
 M:      kyle@mcmartin.ca
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/tulip/
 
 TUN/TAP driver
 P:      Maxim Krasnyansky
@@ -4466,17 +5531,22 @@ M:	maxk@qualcomm.com
 L:      vtun@office.satix.net
 W:      http://vtun.sourceforge.net/tun
 S:      Maintained
+F:      Documentation/networking/tuntap.txt
+F:      arch/um/os-Linux/drivers/
 
 TURBOCHANNEL SUBSYSTEM
 P:      Maciej W. Rozycki
 M:      macro@linux-mips.org
 S:      Maintained
+F:      drivers/tc/
+F:      include/linux/tc.h
 
 U14-34F SCSI DRIVER
 P:      Dario Ballabio
 M:      ballabio_dario@emc.com
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/u14-34f.c
 
 UBI FILE SYSTEM (UBIFS)
 P:      Artem Bityutskiy
@@ -4487,6 +5557,8 @@ L:	linux-mtd@lists.infradead.org
 T:      git git://git.infradead.org/ubifs-2.6.git
 W:      http://www.linux-mtd.infradead.org/doc/ubifs.html
 S:      Maintained
+F:      Documentation/filesystems/ubifs.txt
+F:      fs/ubifs/
 
 UCLINUX (AND M68KNOMMU)
 P:      Greg Ungerer
@@ -4494,6 +5566,7 @@ M:	gerg@uclinux.org
 W:      http://www.uclinux.org/
 L:      uclinux-dev@uclinux.org  (subscribers-only)
 S:      Maintained
+F:      arch/m68knommu/
 
 UCLINUX FOR RENESAS H8/300
 P:      Yoshinori Sato
@@ -4506,18 +5579,25 @@ P:	Jan Kara
 M:      jack@suse.cz
 W:      http://linux-udf.sourceforge.net
 S:      Maintained
+F:      Documentation/filesystems/udf.txt
+F:      fs/udf/
 
 UFS FILESYSTEM
 P:      Evgeniy Dushistov
 M:      dushistov@mail.ru
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/ufs.txt
+F:      fs/ufs/
 
 ULTRA-WIDEBAND (UWB) SUBSYSTEM:
 P:      David Vrabel
 M:      david.vrabel@csr.com
 L:      linux-usb@vger.kernel.org
 S:      Supported
+F:      drivers/uwb/*
+F:      include/linux/uwb.h
+F:      include/linux/uwb/
 
 UNIFORM CDROM DRIVER
 P:      Jens Axboe
@@ -4525,6 +5605,9 @@ M:	axboe@kernel.dk
 L:      linux-kernel@vger.kernel.org
 W:      http://www.kernel.dk
 S:      Maintained
+F:      Documentation/cdrom/
+F:      drivers/cdrom/cdrom.c
+F:      include/linux/cdrom.h
 
 UNSORTED BLOCK IMAGES (UBI)
 P:      Artem Bityutskiy
@@ -4533,12 +5616,17 @@ W:	http://www.linux-mtd.infradead.org/
 L:      linux-mtd@lists.infradead.org
 T:      git git://git.infradead.org/ubi-2.6.git
 S:      Maintained
+F:      drivers/mtd/ubi/
+F:      include/linux/mtd/ubi.h
+F:      include/mtd/ubi-user.h
 
 USB ACM DRIVER
 P:      Oliver Neukum
 M:      oliver@neukum.name
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      Documentation/usb/acm.txt
+F:      drivers/usb/class/cdc-acm.*
 
 USB BLOCK DRIVER (UB ub)
 P:      Pete Zaitcev
@@ -4546,6 +5634,7 @@ M:	zaitcev@redhat.com
 L:      linux-kernel@vger.kernel.org
 L:      linux-usb@vger.kernel.org
 S:      Supported
+F:      drivers/block/ub.c
 
 USB CDC ETHERNET DRIVER
 P:      Greg Kroah-Hartman
@@ -4553,12 +5642,15 @@ M:	greg@kroah.com
 L:      linux-usb@vger.kernel.org
 S:      Maintained
 W:      http://www.kroah.com/linux-usb/
+F:      drivers/net/usb/cdc_*.c
+F:      include/linux/usb/cdc.h
 
 USB CYPRESS C67X00 DRIVER
 P:      Peter Korsgaard
 M:      jacmet@sunsite.dk
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/c67x00/
 
 USB DAVICOM DM9601 DRIVER
 P:      Peter Korsgaard
@@ -4566,6 +5658,7 @@ M:	jacmet@sunsite.dk
 L:      netdev@vger.kernel.org
 W:      http://www.linux-usb.org/usbnet
 S:      Maintained
+F:      drivers/net/usb/dm9601.c
 
 USB DIAMOND RIO500 DRIVER
 P:      Cesar Miquel
@@ -4573,21 +5666,25 @@ M:	miquel@df.uba.ar
 L:      rio500-users@lists.sourceforge.net
 W:      http://rio500.sourceforge.net
 S:      Maintained
+F:      drivers/usb/misc/rio500*
 
 USB EHCI DRIVER
 P:      David Brownell
 M:      dbrownell@users.sourceforge.net
 L:      linux-usb@vger.kernel.org
 S:      Odd Fixes
+F:      Documentation/usb/ehci.txt
+F:      drivers/usb/host/ehci*
 
 USB ET61X[12]51 DRIVER
 P:      Luca Risolia
 M:      luca.risolia@studio.unibo.it
 L:      linux-usb@vger.kernel.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://www.linux-projects.org
 S:      Maintained
+F:      drivers/media/video/et61x251/
 
 USB GADGET/PERIPHERAL SUBSYSTEM
 P:      David Brownell
@@ -4595,25 +5692,32 @@ M:	dbrownell@users.sourceforge.net
 L:      linux-usb@vger.kernel.org
 W:      http://www.linux-usb.org/gadget
 S:      Maintained
+F:      drivers/usb/gadget/
+F:      include/linux/usb/gadget*
 
 USB HID/HIDBP DRIVERS (USB KEYBOARDS, MICE, REMOTE CONTROLS, ...)
 P:      Jiri Kosina
 M:      jkosina@suse.cz
 L:      linux-usb@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/jikos/hid.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git
 S:      Maintained
+F:      Documentation/usb/hiddev.txt
+F:      drivers/hid/usbhid/
 
 USB ISP116X DRIVER
 P:      Olav Kongas
 M:      ok@artecdesign.ee
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/host/isp116x*
+F:      include/linux/usb/isp116x.h
 
 USB KAWASAKI LSI DRIVER
 P:      Oliver Neukum
 M:      oliver@neukum.name
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/serial/kl5kusb105.*
 
 USB MASS STORAGE DRIVER
 P:      Matthew Dharm
@@ -4622,18 +5726,22 @@ L:	linux-usb@vger.kernel.org
 L:      usb-storage@lists.one-eyed-alien.net
 S:      Maintained
 W:      http://www.one-eyed-alien.net/~mdharm/linux-usb/
+F:      drivers/usb/storage/
 
 USB OHCI DRIVER
 P:      David Brownell
 M:      dbrownell@users.sourceforge.net
 L:      linux-usb@vger.kernel.org
 S:      Odd Fixes
+F:      Documentation/usb/ohci.txt
+F:      drivers/usb/host/ohci*
 
 USB OPTION-CARD DRIVER
 P:      Matthias Urlichs
 M:      smurf@smurf.noris.de
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/serial/option.c
 
 USB OV511 DRIVER
 P:      Mark McClelland
@@ -4641,6 +5749,7 @@ M:	mmcclell@bigfoot.com
 L:      linux-usb@vger.kernel.org
 W:      http://alpha.dyndns.org/ov511/
 S:      Maintained
+F:      drivers/media/video/ov511.*
 
 USB PEGASUS DRIVER
 P:      Petko Manolov
@@ -4649,12 +5758,14 @@ L:	linux-usb@vger.kernel.org
 L:      netdev@vger.kernel.org
 W:      http://pegasus2.sourceforge.net/
 S:      Maintained
+F:      drivers/net/usb/pegasus.*
 
 USB PRINTER DRIVER (usblp)
 P:      Pete Zaitcev
 M:      zaitcev@redhat.com
 L:      linux-usb@vger.kernel.org
 S:      Supported
+F:      drivers/usb/class/usblp.c
 
 USB RTL8150 DRIVER
 P:      Petko Manolov
@@ -4663,6 +5774,7 @@ L:	linux-usb@vger.kernel.org
 L:      netdev@vger.kernel.org
 W:      http://pegasus2.sourceforge.net/
 S:      Maintained
+F:      drivers/net/usb/rtl8150.c
 
 USB SE401 DRIVER
 P:      Jeroen Vreeken
@@ -4670,12 +5782,15 @@ M:	pe1rxq@amsat.org
 L:      linux-usb@vger.kernel.org
 W:      http://www.chello.nl/~j.vreeken/se401/
 S:      Maintained
+F:      Documentation/video4linux/se401.txt
+F:      drivers/media/video/se401.*
 
 USB SERIAL BELKIN F5U103 DRIVER
 P:      William Greathouse
 M:      wgreathouse@smva.com
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/serial/belkin_sa.*
 
 USB SERIAL CYPRESS M8 DRIVER
 P:      Lonnie Mendez
@@ -4684,12 +5799,14 @@ L:	linux-usb@vger.kernel.org
 S:      Maintained
 W:      http://geocities.com/i0xox0i
 W:      http://firstlight.net/cvs
+F:      drivers/usb/serial/cypress_m8.*
 
 USB SERIAL CYBERJACK DRIVER
 P:      Matthias Bruestle and Harald Welte
 M:      support@reiner-sct.com
 W:      http://www.reiner-sct.de/support/treiber_cyberjack.php
 S:      Maintained
+F:      drivers/usb/serial/cyberjack.c
 
 USB SERIAL DIGI ACCELEPORT DRIVER
 P:      Peter Berger and Al Borchers
@@ -4697,18 +5814,24 @@ M:	pberger@brimson.com
 M:      alborchers@steinerpoint.com
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/serial/digi_acceleport.c
 
 USB SERIAL DRIVER
 P:      Greg Kroah-Hartman
 M:      gregkh@suse.de
 L:      linux-usb@vger.kernel.org
 S:      Supported
+F:      Documentation/usb/usb-serial.txt
+F:      drivers/usb/serial/generic.c
+F:      drivers/usb/serial/usb-serial.c
+F:      include/linux/usb/serial.h
 
 USB SERIAL EMPEG EMPEG-CAR MARK I/II DRIVER
 P:      Gary Brubaker
 M:      xavyer@ix.netcom.com
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/serial/empeg.c
 
 USB SERIAL KEYSPAN DRIVER
 P:      Greg Kroah-Hartman
@@ -4716,6 +5839,7 @@ M:	greg@kroah.com
 L:      linux-usb@vger.kernel.org
 W:      http://www.kroah.com/linux/
 S:      Maintained
+F:      drivers/usb/serial/*keyspan*
 
 USB SERIAL WHITEHEAT DRIVER
 P:      Support Department
@@ -4723,21 +5847,25 @@ M:	support@connecttech.com
 L:      linux-usb@vger.kernel.org
 W:      http://www.connecttech.com
 S:      Supported
+F:      drivers/usb/serial/whiteheat*
 
 USB SMSC95XX ETHERNET DRIVER
 P:      Steve Glendinning
 M:      steve.glendinning@smsc.com
 L:      netdev@vger.kernel.org
 S:      Supported
+F:      drivers/net/usb/smsc95xx.*
 
 USB SN9C1xx DRIVER
 P:      Luca Risolia
 M:      luca.risolia@studio.unibo.it
 L:      linux-usb@vger.kernel.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://www.linux-projects.org
 S:      Maintained
+F:      Documentation/video4linux/sn9c102.txt
+F:      drivers/media/video/sn9c102/
 
 USB SUBSYSTEM
 P:      Greg Kroah-Hartman
@@ -4746,12 +5874,18 @@ L:	linux-usb@vger.kernel.org
 W:      http://www.linux-usb.org
 T:      quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
 S:      Supported
+F:      Documentation/usb/
+F:      drivers/net/usb/
+F:      drivers/usb/
+F:      include/linux/usb.h
+F:      include/linux/usb/
 
 USB UHCI DRIVER
 P:      Alan Stern
 M:      stern@rowland.harvard.edu
 L:      linux-usb@vger.kernel.org
 S:      Maintained
+F:      drivers/usb/host/uhci*
 
 USB "USBNET" DRIVER FRAMEWORK
 P:      David Brownell
@@ -4759,39 +5893,47 @@ M:	dbrownell@users.sourceforge.net
 L:      netdev@vger.kernel.org
 W:      http://www.linux-usb.org/usbnet
 S:      Maintained
+F:      drivers/net/usb/usbnet.c
+F:      include/linux/usb/usbnet.h
 
 USB VIDEO CLASS
 P:      Laurent Pinchart
 M:      laurent.pinchart@skynet.be
 L:      linux-uvc-devel@lists.berlios.de (subscribers-only)
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://linux-uvc.berlios.de
 S:      Maintained
+F:      drivers/media/video/uvc/
 
 USB W996[87]CF DRIVER
 P:      Luca Risolia
 M:      luca.risolia@studio.unibo.it
 L:      linux-usb@vger.kernel.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://www.linux-projects.org
 S:      Maintained
+F:      Documentation/video4linux/w9968cf.txt
+F:      drivers/media/video/w996*
 
 USB WIRELESS RNDIS DRIVER (rndis_wlan)
 P:      Jussi Kivilinna
 M:      jussi.kivilinna@mbnet.fi
 L:      linux-wireless@vger.kernel.org
 S:      Maintained
+F:      drivers/net/wireless/rndis_wlan.c
 
 USB ZC0301 DRIVER
 P:      Luca Risolia
 M:      luca.risolia@studio.unibo.it
 L:      linux-usb@vger.kernel.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://www.linux-projects.org
 S:      Maintained
+F:      Documentation/video4linux/zc0301.txt
+F:      drivers/media/video/zc0301/
 
 USB ZD1201 DRIVER
 P:      Jeroen Vreeken
@@ -4799,15 +5941,18 @@ M:	pe1rxq@amsat.org
 L:      linux-usb@vger.kernel.org
 W:      http://linux-lc100020.sourceforge.net
 S:      Maintained
+F:      drivers/net/wireless/zd1201.*
 
 USB ZR364XX DRIVER
 P:      Antoine Jacquet
 M:      royale@zerezo.com
 L:      linux-usb@vger.kernel.org
 L:      linux-media@vger.kernel.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:      http://royale.zerezo.com/zr364xx/
 S:      Maintained
+F:      Documentation/video4linux/zr364xx.txt
+F:      drivers/media/video/zr364xx.c
 
 USER-MODE LINUX (UML)
 P:      Jeff Dike
@@ -4816,6 +5961,10 @@ L:	user-mode-linux-devel@lists.sourceforge.net
 L:      user-mode-linux-user@lists.sourceforge.net
 W:      http://user-mode-linux.sourceforge.net
 S:      Maintained
+F:      Documentation/uml/
+F:      arch/um/
+F:      fs/hostfs/
+F:      fs/hppfs/
 
 USERSPACE I/O (UIO)
 P:      Hans J. Koch
@@ -4824,13 +5973,16 @@ P:	Greg Kroah-Hartman
 M:      gregkh@suse.de
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/DocBook/uio-howto.tmpl
+F:      drivers/uio/
+F:      include/linux/uio*.h
 
 UTIL-LINUX-NG PACKAGE
 P:      Karel Zak
 M:      kzak@redhat.com
 L:      util-linux-ng@vger.kernel.org
 W:      http://kernel.org/~kzak/util-linux-ng/
-T:      git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git
+T:      git git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git
 S:      Maintained
 
 UVESAFB DRIVER
@@ -4839,23 +5991,30 @@ M:	spock@gentoo.org
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:      http://dev.gentoo.org/~spock/projects/uvesafb/
 S:      Maintained
+F:      Documentation/fb/uvesafb.txt
+F:      drivers/video/uvesafb.*
 
 VFAT/FAT/MSDOS FILESYSTEM
 P:      OGAWA Hirofumi
 M:      hirofumi@mail.parknet.co.jp
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      Documentation/filesystems/vfat.txt
+F:      fs/fat/
 
 VIA RHINE NETWORK DRIVER
 P:      Roger Luethi
 M:      rl@hellgate.ch
 S:      Maintained
+F:      drivers/net/via-rhine.c
 
 VIAPRO SMBUS DRIVER
 P:      Jean Delvare
 M:      khali@linux-fr.org
 L:      linux-i2c@vger.kernel.org
 S:      Maintained
+F:      Documentation/i2c/busses/i2c-viapro
+F:      drivers/i2c/busses/i2c-viapro.c
 
 VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
 P:      Joseph Chan
@@ -4864,26 +6023,23 @@ P:	Scott Fang
 M:      ScottFang@viatech.com.cn
 L:      linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
 S:      Maintained
+F:      drivers/video/via/
 
 VIA VELOCITY NETWORK DRIVER
 P:      Francois Romieu
 M:      romieu@fr.zoreil.com
 L:      netdev@vger.kernel.org
 S:      Maintained
-
-VIDEO FOR LINUX (V4L)
-P:      Mauro Carvalho Chehab
-M:      mchehab@infradead.org
-L:      linux-media@vger.kernel.org
-W:      http://linuxtv.org
-T:      git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
-S:      Maintained
+F:      drivers/net/via-velocity.*
 
 VLAN (802.1Q)
 P:      Patrick McHardy
 M:      kaber@trash.net
 L:      netdev@vger.kernel.org
 S:      Maintained
+F:      drivers/net/macvlan.c
+F:      include/linux/if_*vlan.h
+F:      net/8021q/
 
 VOLTAGE AND CURRENT REGULATOR FRAMEWORK
 P:      Liam Girdwood
@@ -4892,49 +6048,64 @@ P:	Mark Brown
 M:      broonie@opensource.wolfsonmicro.com
 W:      http://opensource.wolfsonmicro.com/node/15
 W:      http://www.slimlogic.co.uk/?p=48
-T:      git kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6.git
 S:      Supported
+F:      drivers/regulator/
+F:      include/linux/regulator/
 
 VT1211 HARDWARE MONITOR DRIVER
 P:      Juerg Haefliger
 M:      juergh@gmail.com
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/vt1211
+F:      drivers/hwmon/vt1211.c
 
 VT8231 HARDWARE MONITOR DRIVER
 P:      Roger Lucas
 M:      vt8231@hiddenengine.co.uk
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      drivers/hwmon/vt8231.c
 
 W1 DALLAS'S 1-WIRE BUS
 P:      Evgeniy Polyakov
 M:      johnpol@2ka.mipt.ru
 S:      Maintained
+F:      Documentation/w1/
+F:      drivers/w1/
 
 W83791D HARDWARE MONITORING DRIVER
 P:      Marc Hulsman
 M:      m.hulsman@tudelft.nl
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/w83791d
+F:      drivers/hwmon/w83791d.c
 
 W83793 HARDWARE MONITORING DRIVER
 P:      Rudolf Marek
 M:      r.marek@assembler.cz
 L:      lm-sensors@lm-sensors.org
 S:      Maintained
+F:      Documentation/hwmon/w83793
+F:      drivers/hwmon/w83793.c
 
 W83L51xD SD/MMC CARD INTERFACE DRIVER
 P:      Pierre Ossman
 M:      pierre@ossman.eu
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/mmc/host/wbsd.*
 
 WATCHDOG DEVICE DRIVERS
 P:      Wim Van Sebroeck
 M:      wim@iguana.be
-T:      git kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
 S:      Maintained
+F:      Documentation/watchdog/
+F:      drivers/watchdog/
+F:      include/linux/watchdog.h
 
 WAVELAN NETWORK DRIVER & WIRELESS EXTENSIONS
 P:      Jean Tourrilhes
@@ -4942,12 +6113,15 @@ M:	jt@hpl.hp.com
 L:      linux-wireless@vger.kernel.org
 W:      http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/
 S:      Maintained
+F:      Documentation/networking/wavelan.txt
+F:      drivers/net/wireless/wavelan*
 
 WD7000 SCSI DRIVER
 P:      Miroslav Zagorac
 M:      zaga@fly.cc.fer.hr
 L:      linux-scsi@vger.kernel.org
 S:      Maintained
+F:      drivers/scsi/wd7000.c
 
 WIMAX STACK
 P:      Inaky Perez-Gonzalez
@@ -4961,11 +6135,14 @@ WIMEDIA LLC PROTOCOL (WLP) SUBSYSTEM
 P:      David Vrabel
 M:      david.vrabel@csr.com
 S:      Maintained
+F:      include/linux/wlp.h
+F:      drivers/uwb/wlp/
 
 WISTRON LAPTOP BUTTON DRIVER
 P:      Miloslav Trmac
 M:      mitr@volny.cz
 S:      Maintained
+F:      drivers/input/misc/wistron_btns.c
 
 WL3501 WIRELESS PCMCIA CARD DRIVER
 P:      Arnaldo Carvalho de Melo
@@ -4973,6 +6150,7 @@ M:	acme@ghostprotocols.net
 L:      linux-wireless@vger.kernel.org
 W:      http://oops.ghostprotocols.net:81/blog
 S:      Maintained
+F:      drivers/net/wireless/wl3501*
 
 WM97XX TOUCHSCREEN DRIVERS
 P:      Mark Brown
@@ -4983,12 +6161,17 @@ L:	linux-input@vger.kernel.org
 T:      git git://opensource.wolfsonmicro.com/linux-2.6-touch
 W:      http://opensource.wolfsonmicro.com/node/7
 S:      Supported
+F:      drivers/input/touchscreen/*wm97*
+F:      include/linux/wm97xx.h
 
 X.25 NETWORK LAYER
 P:      Henner Eisen
 M:      eis@baty.hanse.de
 L:      linux-x25@vger.kernel.org
 S:      Maintained
+F:      Documentation/networking/x25*
+F:      include/net/x25*
+F:      net/x25/
 
 X86 ARCHITECTURE (32-BIT AND 64-BIT)
 P:      Thomas Gleixner
@@ -4999,8 +6182,10 @@ P:	H. Peter Anvin
 M:      hpa@zytor.com
 M:      x86@kernel.org
 L:      linux-kernel@vger.kernel.org
-T:      git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
 S:      Maintained
+F:      Documentation/x86/
+F:      arch/x86/
 
 XEN HYPERVISOR INTERFACE
 P:      Jeremy Fitzhardinge
@@ -5010,6 +6195,11 @@ M:	chrisw@sous-sol.org
 L:      virtualization@lists.osdl.org
 L:      xen-devel@lists.xensource.com
 S:      Supported
+F:      arch/x86/xen/
+F:      drivers/*/xen-*front.c
+F:      drivers/xen/
+F:      arch/x86/include/asm/xen/
+F:      include/xen/
 
 XFS FILESYSTEM
 P:      Silicon Graphics Inc
@@ -5018,8 +6208,10 @@ M:	felixb@sgi.com
 M:      xfs-masters@oss.sgi.com
 L:      xfs@oss.sgi.com
 W:      http://oss.sgi.com/projects/xfs
-T:      git://oss.sgi.com/xfs/xfs.git
+T:      git git://oss.sgi.com/xfs/xfs.git
 S:      Supported
+F:      Documentation/filesystems/xfs.txt
+F:      fs/xfs/
 
 XILINX SYSTEMACE DRIVER
 P:      Grant Likely
@@ -5027,24 +6219,30 @@ M:	grant.likely@secretlab.ca
 W:      http://www.secretlab.ca/
 L:      linux-kernel@vger.kernel.org
 S:      Maintained
+F:      drivers/block/xsysace.c
 
 XILINX UARTLITE SERIAL DRIVER
 P:      Peter Korsgaard
 M:      jacmet@sunsite.dk
 L:      linux-serial@vger.kernel.org
 S:      Maintained
+F:      drivers/serial/uartlite.c
 
 YAM DRIVER FOR AX.25
 P:      Jean-Paul Roubelat
 M:      jpr@f6fbb.org
 L:      linux-hams@vger.kernel.org
 S:      Maintained
+F:      drivers/net/hamradio/yam*
+F:      include/linux/yam.h
 
 YEALINK PHONE DRIVER
 P:      Henk Vergonet
 M:      Henk.Vergonet@gmail.com
 L:      usbb2k-api-dev@nongnu.org
 S:      Maintained
+F:      Documentation/input/yealink.txt
+F:      drivers/input/misc/yealink.*
 
 Z8530 DRIVER FOR AX.25
 P:      Joerg Reuter
@@ -5053,6 +6251,9 @@ W:	http://yaina.de/jreuter/
 W:      http://www.qsl.net/dl1bke/
 L:      linux-hams@vger.kernel.org
 S:      Maintained
+F:      Documentation/networking/z8530drv.txt
+F:      drivers/net/hamradio/*scc.c
+F:      drivers/net/hamradio/z8530.h
 
 ZD1211RW WIRELESS DRIVER
 P:      Daniel Drake
@@ -5063,6 +6264,7 @@ W:	http://zd1211.ath.cx/wiki/DriverRewrite
 L:      linux-wireless@vger.kernel.org
 L:      zd1211-devs@lists.sourceforge.net (subscribers-only)
 S:      Maintained
+F:      drivers/net/wireless/zd1211rw/
 
 ZR36067 VIDEO FOR LINUX DRIVER
 L:      mjpeg-users@lists.sourceforge.net
@@ -5070,12 +6272,15 @@ L:	linux-media@vger.kernel.org
 W:      http://mjpeg.sourceforge.net/driver-zoran/
 T:      Mercurial http://linuxtv.org/hg/v4l-dvb
 S:      Odd Fixes
+F:      drivers/media/video/zoran/
 
 ZS DECSTATION Z85C30 SERIAL DRIVER
 P:      Maciej W. Rozycki
 M:      macro@linux-mips.org
 S:      Maintained
+F:      drivers/serial/zs.*
 
 THE REST
 P:      Linus Torvalds
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
 S:      Buried alive in reporters
diff --git a/Makefile b/Makefile
index e5ad5fd96177..4f7e3ccde05b 100644
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,7 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
                                   -e s/arm.*/arm/ -e s/sa110/arm/ \
                                   -e s/s390x/s390/ -e s/parisc64/parisc/ \
                                   -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-                                  -e s/sh.*/sh/ )
+                                  -e s/sh[234].*/sh/ )
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------
@@ -210,6 +210,11 @@ ifeq ($(ARCH),sparc64)
        SRCARCH := sparc
 endif
 
+# Additional ARCH settings for sh
+ifeq ($(ARCH),sh64)
+       SRCARCH := sh
+endif
+
 # Where to locate arch specific headers
 hdr-arch  := $(SRCARCH)
 
@@ -567,7 +572,7 @@ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
 # disable pointer signed / unsigned warnings in gcc 4.0
 KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
 
-# disable invalid "can't wrap" optimzations for signed / pointers
+# disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS   += $(call cc-option,-fwrapv)
 
 # revert to pre-gcc-4.4 behaviour of .eh_frame
@@ -597,6 +602,10 @@ LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
 LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
 
+ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
+LDFLAGS_vmlinux += -X
+endif
+
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the command line or
 # set in the environment
@@ -1587,5 +1596,5 @@ PHONY += FORCE
 FORCE:
 
 # Declare the contents of the .PHONY variable as phony.  We keep that
-# information in a variable se we can use it in if_changed and friends.
+# information in a variable so we can use it in if_changed and friends.
 .PHONY: $(PHONY)
diff --git a/arch/Kconfig b/arch/Kconfig
index dc81b34c5d82..78a35e9dc104 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -109,3 +109,6 @@ config HAVE_CLK
 
 config HAVE_DMA_API_DEBUG
         bool
+
+config HAVE_DEFAULT_NO_SPIN_MUTEXES
+        bool
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index fc74e913c415..34a56a136efd 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -131,14 +131,14 @@ static struct musb_hdrc_platform_data musb_plat = {
         .power          = 50,                   /* up to 100 mA */
 };
 
-static u64 musb_dmamask = DMA_32BIT_MASK;
+static u64 musb_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device musb_device = {
         .name           = "musb_hdrc",
         .id             = -1,
         .dev = {
                 .dma_mask               = &musb_dmamask,
-                .coherent_dma_mask      = DMA_32BIT_MASK,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
                 .platform_data          = &musb_plat,
         },
         .num_resources  = ARRAY_SIZE(musb_resources),
@@ -146,14 +146,14 @@ static struct platform_device musb_device = {
 };
 
 #ifdef CONFIG_NOP_USB_XCEIV
-static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device nop_xceiv_device = {
         .name           = "nop_usb_xceiv",
         .id             = -1,
         .dev = {
                 .dma_mask               = &nop_xceiv_dmamask,
-                .coherent_dma_mask      = DMA_32BIT_MASK,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
                 .platform_data          = NULL,
         },
 };
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 573f02c39a00..285aae8431c6 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -16,7 +16,7 @@ EXPORT_SYMBOL(swiotlb);
 static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
                                          dma_addr_t *dma_handle, gfp_t gfp)
 {
-        if (dev->coherent_dma_mask != DMA_64BIT_MASK)
+        if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
                 gfp |= GFP_DMA;
         return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
 }
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
new file mode 100644
index 000000000000..8cc312b5d4dc
--- /dev/null
+++ b/arch/microblaze/Kconfig
@@ -0,0 +1,141 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+
+mainmenu "Linux/Microblaze Kernel Configuration"
+
+config MICROBLAZE
+        def_bool y
+        select HAVE_LMB
+
+config SWAP
+        def_bool n
+
+config RWSEM_GENERIC_SPINLOCK
+        def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+        bool
+
+config ARCH_HAS_ILOG2_U32
+        def_bool n
+
+config ARCH_HAS_ILOG2_U64
+        def_bool n
+
+config GENERIC_FIND_NEXT_BIT
+        def_bool y
+
+config GENERIC_HWEIGHT
+        def_bool y
+
+config GENERIC_HARDIRQS
+        def_bool y
+
+config GENERIC_IRQ_PROBE
+        def_bool y
+
+config GENERIC_CALIBRATE_DELAY
+        def_bool y
+
+config GENERIC_TIME
+        def_bool y
+
+config GENERIC_TIME_VSYSCALL
+        def_bool n
+
+config GENERIC_CLOCKEVENTS
+        def_bool y
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+        def_bool y
+
+config PCI
+        depends on !MMU
+        def_bool n
+
+config NO_DMA
+        depends on !MMU
+        def_bool n
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+source "arch/microblaze/platform/Kconfig.platform"
+
+menu "Processor type and features"
+
+source kernel/time/Kconfig
+
+source "kernel/Kconfig.preempt"
+
+source "kernel/Kconfig.hz"
+
+config MMU
+        def_bool n
+
+config NO_MMU
+        bool
+        depends on !MMU
+        default y
+
+comment "Boot options"
+
+config CMDLINE_BOOL
+        bool "Default bootloader kernel arguments"
+
+config CMDLINE
+        string "Default kernel command string"
+        depends on CMDLINE_BOOL
+        default "console=ttyUL0,115200"
+        help
+          On some architectures there is currently no way for the boot loader
+          to pass arguments to the kernel. For these architectures, you should
+          supply some command-line options at build time by entering them
+          here.
+
+config CMDLINE_FORCE
+        bool "Force default kernel command string"
+        depends on CMDLINE_BOOL
+        default n
+        help
+          Set this to have arguments from the default kernel command string
+          override those passed by the boot loader.
+
+config OF
+        def_bool y
+
+config OF_DEVICE
+        def_bool y
+
+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.
+
+endmenu
+
+source "mm/Kconfig"
+
+menu "Exectuable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/microblaze/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
new file mode 100644
index 000000000000..242cd35bdb4b
--- /dev/null
+++ b/arch/microblaze/Kconfig.debug
@@ -0,0 +1,26 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config EARLY_PRINTK
+        bool "Early printk function for kernel"
+        default n
+        help
+          This option turns on/off early printk messages to console.
+          First Uartlite node is taken.
+
+config HEART_BEAT
+        bool "Heart beat function for kernel"
+        default n
+        help
+          This option turns on/off heart beat kernel functionality.
+          First GPIO node is taken.
+
+config DEBUG_BOOTMEM
+        depends on DEBUG_KERNEL
+        bool "Debug BOOTMEM initialization"
+
+endmenu
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
new file mode 100644
index 000000000000..0dcbb9832974
--- /dev/null
+++ b/arch/microblaze/Makefile
@@ -0,0 +1,69 @@
+UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
+
+# What CPU vesion are we building for, and crack it open
+# as major.minor.rev
+CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
+CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
+CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
+CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
+
+export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
+
+# Use cpu-related CONFIG_ vars to set compile options.
+
+# Work out HW multipler support.  This is icky.
+# 1. Spartan2 has no HW multiplers.
+# 2. MicroBlaze v3.x always uses them, except in Spartan 2
+# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
+ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
+  ifeq ($(CPU_MAJOR),3)
+    CPUFLAGS-1 += -mno-xl-soft-mul
+  else
+    # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
+    CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
+    CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
+  endif
+endif
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP) += -mxl-pattern-compare
+
+CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
+
+# The various CONFIG_XILINX cpu features options are integers 0/1/2...
+# rather than bools y/n
+CFLAGS += $(CPUFLAGS-1)
+CFLAGS += $(CPUFLAGS-2)
+
+# r31 holds current when in kernel mode
+CFLAGS += -ffixed-r31
+
+LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
+
+LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
+
+head-y          := arch/microblaze/kernel/head.o
+libs-y          += arch/microblaze/lib/ $(LIBGCC)
+core-y          += arch/microblaze/kernel/ arch/microblaze/mm/ \
+                   arch/microblaze/platform/
+
+boot := arch/$(ARCH)/boot
+
+# defines filename extension depending memory management type
+ifeq ($(CONFIG_MMU),)
+MMUEXT          := -nommu
+endif
+export  MMUEXT
+
+all: linux.bin
+
+archclean:
+        $(Q)$(MAKE) $(clean)=$(boot)
+
+linux.bin linux.bin.gz: vmlinux
+        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+define archhelp
+  echo  '* linux.bin    - Create raw binary'
+  echo  '  linux.bin.gz - Create compressed raw binary'
+endef
diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile
new file mode 100644
index 000000000000..844edf406d34
--- /dev/null
+++ b/arch/microblaze/boot/Makefile
@@ -0,0 +1,17 @@
+#
+# arch/microblaze/boot/Makefile
+#
+
+targets := linux.bin linux.bin.gz
+
+OBJCOPYFLAGS_linux.bin  := -O binary
+
+$(obj)/linux.bin: vmlinux FORCE
+        $(call if_changed,objcopy)
+        @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+
+$(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
+        $(call if_changed,gzip)
+        @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+
+clean-kernel += linux.bin linux.bin.gz
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
new file mode 100644
index 000000000000..beb7ecd72793
--- /dev/null
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -0,0 +1,804 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.29
+# Tue Mar 24 10:23:20 2009
+#
+CONFIG_MICROBLAZE=y
+# CONFIG_SWAP is not set
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_GENERIC_TIME_VSYSCALL is not set
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+# CONFIG_PCI is not set
+# CONFIG_NO_DMA is not set
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=17
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_CGROUPS is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_ANON_INODES=y
+CONFIG_EMBEDDED=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_BASE_FULL is not set
+CONFIG_FUTEX=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
+CONFIG_EVENTFD=y
+CONFIG_AIO=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_COMPAT_BRK=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
+CONFIG_SLABINFO=y
+CONFIG_RT_MUTEXES=y
+CONFIG_BASE_SMALL=1
+CONFIG_MODULES=y
+# CONFIG_MODULE_FORCE_LOAD is not set
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_BLK_DEV_INTEGRITY is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+# CONFIG_FREEZER is not set
+
+#
+# Platform options
+#
+CONFIG_PLATFORM_GENERIC=y
+# CONFIG_SELFMOD is not set
+# CONFIG_OPT_LIB_FUNCTION is not set
+# CONFIG_ALLOW_EDIT_AUTO is not set
+CONFIG_KERNEL_BASE_ADDR=0x90000000
+CONFIG_XILINX_MICROBLAZE0_FAMILY="virtex5"
+CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
+CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
+CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
+CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
+CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=2
+CONFIG_XILINX_MICROBLAZE0_USE_FPU=2
+CONFIG_XILINX_MICROBLAZE0_HW_VER="7.10.d"
+
+#
+# Processor type and features
+#
+CONFIG_TICK_ONESHOT=y
+# CONFIG_NO_HZ is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+CONFIG_HZ_100=y
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=100
+CONFIG_SCHED_HRTICK=y
+# CONFIG_MMU is not set
+CONFIG_NO_MMU=y
+
+#
+# Boot options
+#
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyUL0,115200"
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_OF=y
+CONFIG_OF_DEVICE=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_PHYS_ADDR_T_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
+
+#
+# Exectuable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_HAVE_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_COMPAT_NET_DEV_OPS=y
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_XFRM_STATISTICS is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_NET_DSA is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_DCB is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+# CONFIG_PHONET is not set
+CONFIG_WIRELESS=y
+# CONFIG_CFG80211 is not set
+CONFIG_WIRELESS_OLD_REGULATORY=y
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_LIB80211 is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_WIMAX is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+CONFIG_MTD_CONCAT=y
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_TESTS is not set
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+CONFIG_MTD_RAM=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PHYSMAP is not set
+CONFIG_MTD_UCLINUX=y
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# LPDDR flash memory drivers
+#
+# CONFIG_MTD_LPDDR is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+CONFIG_BLK_DEV_NBD=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_93CX6 is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_DNET is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
+# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
+# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
+# CONFIG_B44 is not set
+CONFIG_NETDEV_1000=y
+CONFIG_NETDEV_10000=y
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI_LEDS is not set
+
+#
+# Enable WiMAX (Networking options) to see the WiMAX drivers
+#
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+CONFIG_DEVKMEM=y
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_UARTLITE=y
+CONFIG_SERIAL_UARTLITE_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_RTC is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
+# CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
+
+#
+# Sonics Silicon Backplane
+#
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_CORE is not set
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_MFD_TMIO is not set
+# CONFIG_REGULATOR is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_VIDEO_MEDIA is not set
+
+#
+# Multimedia drivers
+#
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_SOUND is not set
+CONFIG_USB_SUPPORT=y
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB_OTG_WHITELIST is not set
+# CONFIG_USB_OTG_BLACKLIST_HUB is not set
+
+#
+# Enable Host or Gadget support to see Inventra options
+#
+
+#
+# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# OTG and related infrastructure
+#
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
+# CONFIG_UIO is not set
+# CONFIG_STAGING is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FILE_LOCKING=y
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_BTRFS_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+CONFIG_MISC_FILESYSTEMS=y
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+CONFIG_CRAMFS=y
+# CONFIG_SQUASHFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_NFS_V3_ACL=y
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFSD is not set
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_ACL_SUPPORT=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_REGISTER_V4 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_SHIRQ=y
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHEDSTATS=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_OBJECTS=y
+CONFIG_DEBUG_OBJECTS_SELFTEST=y
+CONFIG_DEBUG_OBJECTS_FREE=y
+CONFIG_DEBUG_OBJECTS_TIMERS=y
+CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_NOMMU_REGIONS is not set
+# CONFIG_DEBUG_WRITECOUNT is not set
+# CONFIG_DEBUG_MEMORY_INIT is not set
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_SG=y
+# CONFIG_DEBUG_NOTIFIERS is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set
+# CONFIG_BACKTRACE_SELF_TEST is not set
+# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
+# CONFIG_FAULT_INJECTION is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+
+#
+# Tracers
+#
+# CONFIG_SCHED_TRACER is not set
+# CONFIG_CONTEXT_SWITCH_TRACER is not set
+# CONFIG_BOOT_TRACER is not set
+# CONFIG_TRACE_BRANCH_PROFILING is not set
+# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
+# CONFIG_SAMPLES is not set
+CONFIG_EARLY_PRINTK=y
+CONFIG_HEART_BEAT=y
+# CONFIG_DEBUG_BOOTMEM is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITYFS is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
+# CONFIG_CRYPTO_FIPS is not set
+# CONFIG_CRYPTO_MANAGER is not set
+# CONFIG_CRYPTO_MANAGER2 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Authenticated Encryption with Associated Data
+#
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_SEQIV is not set
+
+#
+# Block modes
+#
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_XTS is not set
+
+#
+# Hash modes
+#
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+
+#
+# Digest
+#
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_RMD128 is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_RMD256 is not set
+# CONFIG_CRYPTO_RMD320 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_WP512 is not set
+
+#
+# Ciphers
+#
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+
+#
+# Compression
+#
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_LZO is not set
+
+#
+# Random Number Generation
+#
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRYPTO_HW=y
+
+#
+# Library routines
+#
+CONFIG_GENERIC_FIND_LAST_BIT=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_T10DIF is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC32 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
+CONFIG_HAVE_LMB=y
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
new file mode 100644
index 000000000000..31820dfef56b
--- /dev/null
+++ b/arch/microblaze/include/asm/Kbuild
@@ -0,0 +1,26 @@
+include include/asm-generic/Kbuild.asm
+
+header-y += auxvec.h
+header-y += errno.h
+header-y += fcntl.h
+header-y += ioctl.h
+header-y += ioctls.h
+header-y += ipcbuf.h
+header-y += linkage.h
+header-y += msgbuf.h
+header-y += poll.h
+header-y += resource.h
+header-y += sembuf.h
+header-y += shmbuf.h
+header-y += sigcontext.h
+header-y += siginfo.h
+header-y += socket.h
+header-y += sockios.h
+header-y += statfs.h
+header-y += stat.h
+header-y += termbits.h
+header-y += ucontext.h
+
+unifdef-y += cputable.h
+unifdef-y += elf.h
+unifdef-y += termios.h
diff --git a/arch/microblaze/include/asm/atomic.h b/arch/microblaze/include/asm/atomic.h
new file mode 100644
index 000000000000..a448d94ab721
--- /dev/null
+++ b/arch/microblaze/include/asm/atomic.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_ATOMIC_H
+#define _ASM_MICROBLAZE_ATOMIC_H
+
+#include <linux/types.h>
+#include <linux/compiler.h> /* likely */
+#include <asm/system.h> /* local_irq_XXX and friends */
+
+#define ATOMIC_INIT(i)          { (i) }
+#define atomic_read(v)          ((v)->counter)
+#define atomic_set(v, i)        (((v)->counter) = (i))
+
+#define atomic_inc(v)           (atomic_add_return(1, (v)))
+#define atomic_dec(v)           (atomic_sub_return(1, (v)))
+
+#define atomic_add(i, v)        (atomic_add_return(i, (v)))
+#define atomic_sub(i, v)        (atomic_sub_return(i, (v)))
+
+#define atomic_inc_return(v)    (atomic_add_return(1, (v)))
+#define atomic_dec_return(v)    (atomic_sub_return(1, (v)))
+
+#define atomic_inc_and_test(v)  (atomic_add_return(1, (v)) == 0)
+#define atomic_dec_and_test(v)  (atomic_sub_return(1, (v)) == 0)
+
+#define atomic_inc_not_zero(v)  (atomic_add_unless((v), 1, 0))
+
+#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0)
+
+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+        int ret;
+        unsigned long flags;
+
+        local_irq_save(flags);
+        ret = v->counter;
+        if (likely(ret == old))
+                v->counter = new;
+        local_irq_restore(flags);
+
+        return ret;
+}
+
+static inline int atomic_add_unless(atomic_t *v, int a, int u)
+{
+        int c, old;
+
+        c = atomic_read(v);
+        while (c != u && (old = atomic_cmpxchg((v), c, c + a)) != c)
+                c = old;
+        return c != u;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+        unsigned long flags;
+
+        local_irq_save(flags);
+        *addr &= ~mask;
+        local_irq_restore(flags);
+}
+
+/**
+ * atomic_add_return - add and return
+ * @i: integer value to add
+ * @v: pointer of type atomic_t
+ *
+ * Atomically adds @i to @v and returns @i + @v
+ */
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+        unsigned long flags;
+        int val;
+
+        local_irq_save(flags);
+        val = v->counter;
+        v->counter = val += i;
+        local_irq_restore(flags);
+
+        return val;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+        return atomic_add_return(-i, v);
+}
+
+/*
+ * 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)
+{
+        unsigned long flags;
+        int res;
+
+        local_irq_save(flags);
+        res = v->counter - 1;
+        if (res >= 0)
+                v->counter = res;
+        local_irq_restore(flags);
+
+        return res;
+}
+
+#define atomic_add_negative(a, v)       (atomic_add_return((a), (v)) < 0)
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+/* Atomic operations are already serializing */
+#define smp_mb__before_atomic_dec()     barrier()
+#define smp_mb__after_atomic_dec()      barrier()
+#define smp_mb__before_atomic_inc()     barrier()
+#define smp_mb__after_atomic_inc()      barrier()
+
+#include <asm-generic/atomic.h>
+
+#endif /* _ASM_MICROBLAZE_ATOMIC_H */
diff --git a/arch/microblaze/include/asm/auxvec.h b/arch/microblaze/include/asm/auxvec.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/arch/microblaze/include/asm/auxvec.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/bitops.h b/arch/microblaze/include/asm/bitops.h
new file mode 100644
index 000000000000..d6df1fd4e1e8
--- /dev/null
+++ b/arch/microblaze/include/asm/bitops.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_BITOPS_H
+#define _ASM_MICROBLAZE_BITOPS_H
+
+/*
+ * Copyright 1992, Linus Torvalds.
+ */
+
+#include <asm/byteorder.h> /* swab32 */
+#include <asm/system.h> /* save_flags */
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+#define smp_mb__before_clear_bit()      barrier()
+#define smp_mb__after_clear_bit()       barrier()
+#include <asm-generic/bitops.h>
+#include <asm-generic/bitops/__fls.h>
+
+#endif /* _ASM_MICROBLAZE_BITOPS_H */
diff --git a/arch/microblaze/include/asm/bug.h b/arch/microblaze/include/asm/bug.h
new file mode 100644
index 000000000000..8eb2cdde11d7
--- /dev/null
+++ b/arch/microblaze/include/asm/bug.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_BUG_H
+#define _ASM_MICROBLAZE_BUG_H
+
+#include <linux/kernel.h>
+#include <asm-generic/bug.h>
+
+#endif /* _ASM_MICROBLAZE_BUG_H */
diff --git a/arch/microblaze/include/asm/bugs.h b/arch/microblaze/include/asm/bugs.h
new file mode 100644
index 000000000000..f2c6593653fb
--- /dev/null
+++ b/arch/microblaze/include/asm/bugs.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_BUGS_H
+#define _ASM_MICROBLAZE_BUGS_H
+
+static inline void check_bugs(void)
+{
+        /* nothing to do */
+}
+
+#endif /* _ASM_MICROBLAZE_BUGS_H */
diff --git a/arch/microblaze/include/asm/byteorder.h b/arch/microblaze/include/asm/byteorder.h
new file mode 100644
index 000000000000..ce9c58732ffc
--- /dev/null
+++ b/arch/microblaze/include/asm/byteorder.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_BYTEORDER_H
+#define _ASM_MICROBLAZE_BYTEORDER_H
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _ASM_MICROBLAZE_BYTEORDER_H */
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
new file mode 100644
index 000000000000..c4c64b43c074
--- /dev/null
+++ b/arch/microblaze/include/asm/cache.h
@@ -0,0 +1,45 @@
+/*
+ * Cache operations
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_CACHE_H
+#define _ASM_MICROBLAZE_CACHE_H
+
+#include <asm/registers.h>
+
+#define L1_CACHE_SHIFT  2
+/* word-granular cache in microblaze */
+#define L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
+
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
+
+void _enable_icache(void);
+void _disable_icache(void);
+void _invalidate_icache(unsigned int addr);
+
+#define __enable_icache()               _enable_icache()
+#define __disable_icache()              _disable_icache()
+#define __invalidate_icache(addr)       _invalidate_icache(addr)
+
+void _enable_dcache(void);
+void _disable_dcache(void);
+void _invalidate_dcache(unsigned int addr);
+
+#define __enable_dcache()               _enable_dcache()
+#define __disable_dcache()              _disable_dcache()
+#define __invalidate_dcache(addr)       _invalidate_dcache(addr)
+
+/* FIXME - I don't think this is right */
+#ifdef CONFIG_XILINX_UNCACHED_SHADOW
+#define UNCACHED_SHADOW_MASK (CONFIG_XILINX_ERAM_SIZE)
+#endif
+
+#endif /* _ASM_MICROBLAZE_CACHE_H */
diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h
new file mode 100644
index 000000000000..3300b785049b
--- /dev/null
+++ b/arch/microblaze/include/asm/cacheflush.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2007 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ * based on v850 version which was
+ * Copyright (C) 2001,02,03 NEC Electronics Corporation
+ * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ */
+
+#ifndef _ASM_MICROBLAZE_CACHEFLUSH_H
+#define _ASM_MICROBLAZE_CACHEFLUSH_H
+
+/* Somebody depends on this; sigh... */
+#include <linux/mm.h>
+
+/*
+ * Cache handling functions.
+ * Microblaze has a write-through data cache, meaning that the data cache
+ * never needs to be flushed.  The only flushing operations that are
+ * implemented are to invalidate the instruction cache.  These are called
+ * after loading a user application into memory, we must invalidate the
+ * instruction cache to make sure we don't fetch old, bad code.
+ */
+
+/* FIXME for LL-temac driver */
+#define invalidate_dcache_range(start, end) \
+                        __invalidate_dcache_range(start, end)
+
+#define flush_cache_all()                       __invalidate_cache_all()
+#define flush_cache_mm(mm)                      do { } while (0)
+#define flush_cache_range(vma, start, end)      __invalidate_cache_all()
+#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+
+#define flush_dcache_range(start, end)  __invalidate_dcache_range(start, end)
+#define flush_dcache_page(page)                 do { } while (0)
+#define flush_dcache_mmap_lock(mapping)         do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
+
+#define flush_icache_range(start, len)  __invalidate_icache_range(start, len)
+#define flush_icache_page(vma, pg)              do { } while (0)
+
+#define flush_cache_vmap(start, end)            do { } while (0)
+#define flush_cache_vunmap(start, end)          do { } while (0)
+
+struct page;
+struct mm_struct;
+struct vm_area_struct;
+
+/* see arch/microblaze/kernel/cache.c */
+extern void __invalidate_icache_all(void);
+extern void __invalidate_icache_range(unsigned long start, unsigned long end);
+extern void __invalidate_icache_page(struct vm_area_struct *vma,
+                                struct page *page);
+extern void __invalidate_icache_user_range(struct vm_area_struct *vma,
+                                struct page *page,
+                                unsigned long adr, int len);
+extern void __invalidate_cache_sigtramp(unsigned long addr);
+
+extern void __invalidate_dcache_all(void);
+extern void __invalidate_dcache_range(unsigned long start, unsigned long end);
+extern void __invalidate_dcache_page(struct vm_area_struct *vma,
+                                struct page *page);
+extern void __invalidate_dcache_user_range(struct vm_area_struct *vma,
+                                struct page *page,
+                                unsigned long adr, int len);
+
+extern inline void __invalidate_cache_all(void)
+{
+        __invalidate_icache_all();
+        __invalidate_dcache_all();
+}
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do { memcpy((dst), (src), (len)); \
+        flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
+} while (0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+        memcpy((dst), (src), (len))
+
+#endif /* _ASM_MICROBLAZE_CACHEFLUSH_H */
diff --git a/arch/microblaze/include/asm/checksum.h b/arch/microblaze/include/asm/checksum.h
new file mode 100644
index 000000000000..92b30762ce59
--- /dev/null
+++ b/arch/microblaze/include/asm/checksum.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_CHECKSUM_H
+#define _ASM_MICROBLAZE_CHECKSUM_H
+
+#include <linux/in6.h>
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+                   unsigned short proto, __wsum sum)
+{
+        __asm__("add %0, %0, %1\n\t"
+                "addc %0, %0, %2\n\t"
+                "addc %0, %0, %3\n\t"
+                "addc %0, %0, r0\n\t"
+                : "+&d" (sum)
+                : "d" (saddr), "d" (daddr), "d" (len + proto));
+
+        return sum;
+}
+
+/*
+ * 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 __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+extern __wsum csum_partial_copy(const char *src, char *dst, int len, int sum);
+
+/*
+ * the same as csum_partial_copy, but copies from user space.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+extern __wsum csum_partial_copy_from_user(const char *src, char *dst,
+                                        int len, int sum, int *csum_err);
+
+#define csum_partial_copy_nocheck(src, dst, len, sum)   \
+        csum_partial_copy((src), (dst), (len), (sum))
+
+/*
+ *      This is a version of ip_compute_csum() optimized for IP headers,
+ *      which always checksum on 4 octet boundaries.
+ *
+ */
+extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+/*
+ *      Fold a partial checksum
+ */
+static inline __sum16 csum_fold(unsigned int sum)
+{
+        sum = (sum & 0xffff) + (sum >> 16);
+        sum = (sum & 0xffff) + (sum >> 16);
+        return ~sum;
+}
+
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
+                  unsigned short proto, __wsum sum)
+{
+        return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+extern __sum16 ip_compute_csum(const unsigned char *buff, int len);
+
+#endif /* _ASM_MICROBLAZE_CHECKSUM_H */
diff --git a/arch/microblaze/include/asm/clinkage.h b/arch/microblaze/include/asm/clinkage.h
new file mode 100644
index 000000000000..9e218435a55c
--- /dev/null
+++ b/arch/microblaze/include/asm/clinkage.h
@@ -0,0 +1 @@
+#include <linux/linkage.h>
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h
new file mode 100644
index 000000000000..52f28f6dc4eb
--- /dev/null
+++ b/arch/microblaze/include/asm/cpuinfo.h
@@ -0,0 +1,102 @@
+/*
+ * Generic support for queying CPU info
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_CPUINFO_H
+#define _ASM_MICROBLAZE_CPUINFO_H
+
+#include <asm/prom.h>
+
+/* CPU Version and FPGA Family code conversion table type */
+struct cpu_ver_key {
+        const char *s;
+        const unsigned k;
+};
+
+extern const struct cpu_ver_key cpu_ver_lookup[];
+
+struct family_string_key {
+        const char *s;
+        const unsigned k;
+};
+
+extern const struct family_string_key family_string_lookup[];
+
+struct cpuinfo {
+        /* Core CPU configuration */
+        u32 use_instr;
+        u32 use_mult;
+        u32 use_fpu;
+        u32 use_exc;
+        u32 ver_code;
+        u32 mmu;
+
+        /* CPU caches */
+        u32 use_icache;
+        u32 icache_tagbits;
+        u32 icache_write;
+        u32 icache_line;
+        u32 icache_size;
+        unsigned long icache_base;
+        unsigned long icache_high;
+
+        u32 use_dcache;
+        u32 dcache_tagbits;
+        u32 dcache_write;
+        u32 dcache_line;
+        u32 dcache_size;
+        unsigned long dcache_base;
+        unsigned long dcache_high;
+
+        /* Bus connections */
+        u32 use_dopb;
+        u32 use_iopb;
+        u32 use_dlmb;
+        u32 use_ilmb;
+        u32 num_fsl;
+
+        /* CPU interrupt line info */
+        u32 irq_edge;
+        u32 irq_positive;
+
+        u32 area_optimised;
+
+        /* HW debug support */
+        u32 hw_debug;
+        u32 num_pc_brk;
+        u32 num_rd_brk;
+        u32 num_wr_brk;
+        u32 cpu_clock_freq; /* store real freq of cpu */
+        u32 freq_div_hz; /* store freq/HZ */
+
+        /* FPGA family */
+        u32 fpga_family_code;
+
+        /* User define */
+        u32 pvr_user1;
+        u32 pvr_user2;
+};
+
+extern struct cpuinfo cpuinfo;
+
+/* fwd declarations of the various CPUinfo populators */
+void setup_cpuinfo(void);
+
+void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
+void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
+
+static inline unsigned int fcpu(struct device_node *cpu, char *n)
+{
+        int *val;
+        return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0;
+}
+
+#endif /* _ASM_MICROBLAZE_CPUINFO_H */
diff --git a/arch/microblaze/include/asm/cputable.h b/arch/microblaze/include/asm/cputable.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/arch/microblaze/include/asm/cputable.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/cputime.h b/arch/microblaze/include/asm/cputime.h
new file mode 100644
index 000000000000..6d68ad7e0ea3
--- /dev/null
+++ b/arch/microblaze/include/asm/cputime.h
@@ -0,0 +1 @@
+#include <asm-generic/cputime.h>
diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h
new file mode 100644
index 000000000000..8375ea991e26
--- /dev/null
+++ b/arch/microblaze/include/asm/current.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_CURRENT_H
+#define _ASM_MICROBLAZE_CURRENT_H
+
+# ifndef __ASSEMBLY__
+/*
+ * Dedicate r31 to keeping the current task pointer
+ */
+register struct task_struct *current asm("r31");
+
+# define get_current()  current
+# endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_CURRENT_H */
diff --git a/arch/microblaze/include/asm/delay.h b/arch/microblaze/include/asm/delay.h
new file mode 100644
index 000000000000..05b7d39e4391
--- /dev/null
+++ b/arch/microblaze/include/asm/delay.h
@@ -0,0 +1,72 @@
+/*
+ * include/asm-microblaze/delay.h
+ *
+ * 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) 2008 Michal Simek
+ * Copyright (C) 2007 John Williams
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ */
+
+#ifndef _ASM_MICROBLAZE_DELAY_H
+#define _ASM_MICROBLAZE_DELAY_H
+
+extern inline void __delay(unsigned long loops)
+{
+        asm volatile ("# __delay                \n\t"           \
+                        "1: addi        %0, %0, -1\t\n"         \
+                        "bneid  %0, 1b          \t\n"           \
+                        "nop                    \t\n"
+                        : "=r" (loops)
+                        : "0" (loops));
+}
+
+/*
+ * Note that 19 * 226 == 4294 ==~ 2^32 / 10^6, so
+ * loops = (4294 * usecs * loops_per_jiffy * HZ) / 2^32.
+ *
+ * The mul instruction gives us loops = (a * b) / 2^32.
+ * We choose a = usecs * 19 * HZ and b = loops_per_jiffy * 226
+ * because this lets us support a wide range of HZ and
+ * loops_per_jiffy values without either a or b overflowing 2^32.
+ * Thus we need usecs * HZ <= (2^32 - 1) / 19 = 226050910 and
+ * loops_per_jiffy <= (2^32 - 1) / 226 = 19004280
+ * (which corresponds to ~3800 bogomips at HZ = 100).
+ * -- paulus
+ */
+#define __MAX_UDELAY    (226050910UL/HZ)        /* maximum udelay argument */
+#define __MAX_NDELAY    (4294967295UL/HZ)       /* maximum ndelay argument */
+
+extern unsigned long loops_per_jiffy;
+
+extern inline void __udelay(unsigned int x)
+{
+
+        unsigned long long tmp =
+                (unsigned long long)x * (unsigned long long)loops_per_jiffy \
+                        * 226LL;
+        unsigned loops = tmp >> 32;
+
+/*
+        __asm__("mulxuu %0,%1,%2" : "=r" (loops) :
+                "r" (x), "r" (loops_per_jiffy * 226));
+*/
+        __delay(loops);
+}
+
+extern void __bad_udelay(void);         /* deliberately undefined */
+extern void __bad_ndelay(void);         /* deliberately undefined */
+
+#define udelay(n) (__builtin_constant_p(n) ? \
+        ((n) > __MAX_UDELAY ? __bad_udelay() : __udelay((n) * (19 * HZ))) : \
+        __udelay((n) * (19 * HZ)))
+
+#define ndelay(n) (__builtin_constant_p(n) ? \
+        ((n) > __MAX_NDELAY ? __bad_ndelay() : __udelay((n) * HZ)) : \
+        __udelay((n) * HZ))
+
+#define muldiv(a, b, c)         (((a)*(b))/(c))
+
+#endif /* _ASM_MICROBLAZE_DELAY_H */
diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h
new file mode 100644
index 000000000000..c042830793ed
--- /dev/null
+++ b/arch/microblaze/include/asm/device.h
@@ -0,0 +1,21 @@
+/*
+ * Arch specific extensions to struct device
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License v2. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_DEVICE_H
+#define _ASM_MICROBLAZE_DEVICE_H
+
+struct device_node;
+
+struct dev_archdata {
+        /* Optional pointer to an OF device node */
+        struct device_node      *of_node;
+};
+
+#endif /* _ASM_MICROBLAZE_DEVICE_H */
+
+
diff --git a/arch/microblaze/include/asm/div64.h b/arch/microblaze/include/asm/div64.h
new file mode 100644
index 000000000000..6cd978cefb28
--- /dev/null
+++ b/arch/microblaze/include/asm/div64.h
@@ -0,0 +1 @@
+#include <asm-generic/div64.h>
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..17336252a9b8
--- /dev/null
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
+#define _ASM_MICROBLAZE_DMA_MAPPING_H
+
+#include <asm/cacheflush.h>
+#include <linux/io.h>
+#include <linux/bug.h>
+
+struct scatterlist;
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
+/* FIXME */
+static inline int
+dma_supported(struct device *dev, u64 mask)
+{
+        return 1;
+}
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page,
+        unsigned long offset, size_t size,
+        enum dma_data_direction direction)
+{
+        BUG();
+        return 0;
+}
+
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+        enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+        enum dma_data_direction direction)
+{
+        BUG();
+        return 0;
+}
+
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+        enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
+                        enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+                size_t size, enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
+                enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline void
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
+                enum dma_data_direction direction)
+{
+        BUG();
+}
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+        return 0;
+}
+
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+                                dma_addr_t *dma_handle, int flag)
+{
+        return NULL; /* consistent_alloc(flag, size, dma_handle); */
+}
+
+static inline void dma_free_coherent(struct device *dev, size_t size,
+                        void *vaddr, dma_addr_t dma_handle)
+{
+        BUG();
+}
+
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *ptr, size_t size,
+        enum dma_data_direction direction)
+{
+        BUG_ON(direction == DMA_NONE);
+
+        return virt_to_bus(ptr);
+}
+
+static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+                                    size_t size,
+                                    enum dma_data_direction direction)
+{
+        switch (direction) {
+        case DMA_FROM_DEVICE:
+                flush_dcache_range((unsigned)dma_addr,
+                        (unsigned)dma_addr + size);
+                        /* Fall through */
+        case DMA_TO_DEVICE:
+                break;
+        default:
+                BUG();
+        }
+}
+
+#endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h
new file mode 100644
index 000000000000..0967fa04fc5e
--- /dev/null
+++ b/arch/microblaze/include/asm/dma.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_DMA_H
+#define _ASM_MICROBLAZE_DMA_H
+
+/* we don't have dma address limit. define it as zero to be
+ * unlimited. */
+#define MAX_DMA_ADDRESS         (0)
+
+#endif /* _ASM_MICROBLAZE_DMA_H */
diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h
new file mode 100644
index 000000000000..81337f241347
--- /dev/null
+++ b/arch/microblaze/include/asm/elf.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_ELF_H
+#define _ASM_MICROBLAZE_ELF_H
+
+/*
+ * Note there is no "official" ELF designation for Microblaze.
+ * I've snaffled the value from the microblaze binutils source code
+ * /binutils/microblaze/include/elf/microblaze.h
+ */
+#define EM_XILINX_MICROBLAZE    0xbaab
+#define ELF_ARCH                EM_XILINX_MICROBLAZE
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x)       ((x)->e_machine == EM_XILINX_MICROBLAZE)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS32
+
+#endif /* _ASM_MICROBLAZE_ELF_H */
diff --git a/arch/microblaze/include/asm/emergency-restart.h b/arch/microblaze/include/asm/emergency-restart.h
new file mode 100644
index 000000000000..3711bd9d50bd
--- /dev/null
+++ b/arch/microblaze/include/asm/emergency-restart.h
@@ -0,0 +1 @@
+#include <asm-generic/emergency-restart.h>
diff --git a/arch/microblaze/include/asm/entry.h b/arch/microblaze/include/asm/entry.h
new file mode 100644
index 000000000000..7f57e42ee467
--- /dev/null
+++ b/arch/microblaze/include/asm/entry.h
@@ -0,0 +1,35 @@
+/*
+ * Definitions used by low-level trap handlers
+ *
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2007 - 2008 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_ENTRY_H
+#define _ASM_MICROBLAZE_ENTRY_H
+
+#include <asm/percpu.h>
+#include <asm/ptrace.h>
+
+/*
+ * These are per-cpu variables required in entry.S, among other
+ * places
+ */
+
+#define PER_CPU(var) per_cpu__##var
+
+# ifndef __ASSEMBLY__
+DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
+DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
+DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
+DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
+DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
+DECLARE_PER_CPU(unsigned int, SYSCALL_SAVE); /* Saved syscall number */
+# endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_ENTRY_H */
diff --git a/arch/microblaze/include/asm/errno.h b/arch/microblaze/include/asm/errno.h
new file mode 100644
index 000000000000..4c82b503d92f
--- /dev/null
+++ b/arch/microblaze/include/asm/errno.h
@@ -0,0 +1 @@
+#include <asm-generic/errno.h>
diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h
new file mode 100644
index 000000000000..4cdd2159f470
--- /dev/null
+++ b/arch/microblaze/include/asm/exceptions.h
@@ -0,0 +1,96 @@
+/*
+ * Preliminary support for HW exception handing for Microblaze
+ *
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_EXCEPTIONS_H
+#define _ASM_MICROBLAZE_EXCEPTIONS_H
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+/* Macros to enable and disable HW exceptions in the MSR */
+/* Define MSR enable bit for HW exceptions */
+#define HWEX_MSR_BIT (1 << 8)
+
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+#define __enable_hw_exceptions()                                        \
+        __asm__ __volatile__ (" msrset  r0, %0;                         \
+                                nop;"                                   \
+                                :                                       \
+                                : "i" (HWEX_MSR_BIT)                    \
+                                : "memory")
+
+#define __disable_hw_exceptions()                                       \
+        __asm__ __volatile__ (" msrclr r0, %0;                          \
+                                nop;"                                   \
+                                :                                       \
+                                : "i" (HWEX_MSR_BIT)                    \
+                                : "memory")
+#else /* !CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+#define __enable_hw_exceptions()                                        \
+        __asm__ __volatile__ ("                                         \
+                                mfs     r12, rmsr;                      \
+                                nop;                                    \
+                                ori     r12, r12, %0;                   \
+                                mts     rmsr, r12;                      \
+                                nop;"                                   \
+                                :                                       \
+                                : "i" (HWEX_MSR_BIT)                    \
+                                : "memory", "r12")
+
+#define __disable_hw_exceptions()                                       \
+        __asm__ __volatile__ ("                                         \
+                                mfs     r12, rmsr;                      \
+                                nop;                                    \
+                                andi    r12, r12, ~%0;                  \
+                                mts     rmsr, r12;                      \
+                                nop;"                                   \
+                                :                                       \
+                                : "i" (HWEX_MSR_BIT)                    \
+                                : "memory", "r12")
+#endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+
+asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
+                                                        int fsr, int addr);
+
+#if defined(CONFIG_XMON)
+extern void xmon(struct pt_regs *regs);
+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);
+
+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;
+int (*debugger_iabr_match)(struct pt_regs *regs) = xmon_iabr_match;
+int (*debugger_dabr_match)(struct pt_regs *regs) = xmon_dabr_match;
+void (*debugger_fault_handler)(struct pt_regs *regs);
+#elif defined(CONFIG_KGDB)
+void (*debugger)(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);
+void (*debugger_fault_handler)(struct pt_regs *regs);
+#else
+#define debugger(regs)                  do { } while (0)
+#define debugger_bpt(regs)              0
+#define debugger_sstep(regs)            0
+#define debugger_iabr_match(regs)       0
+#define debugger_dabr_match(regs)       0
+#define debugger_fault_handler          ((void (*)(struct pt_regs *))0)
+#endif
+
+#endif /*__ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_EXCEPTIONS_H */
diff --git a/arch/microblaze/include/asm/fcntl.h b/arch/microblaze/include/asm/fcntl.h
new file mode 100644
index 000000000000..46ab12db5739
--- /dev/null
+++ b/arch/microblaze/include/asm/fcntl.h
@@ -0,0 +1 @@
+#include <asm-generic/fcntl.h>
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
new file mode 100644
index 000000000000..acf0da543ef1
--- /dev/null
+++ b/arch/microblaze/include/asm/flat.h
@@ -0,0 +1,90 @@
+/*
+ * uClinux flat-format executables
+ *
+ * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_FLAT_H
+#define _ASM_MICROBLAZE_FLAT_H
+
+#include <asm/unaligned.h>
+
+#define flat_stack_align(sp) /* nothing needed */
+#define flat_argvp_envp_on_stack()      0
+#define flat_old_ram_flag(flags)        (flags)
+#define flat_reloc_valid(reloc, size)   ((reloc) <= (size))
+#define flat_set_persistent(relval, p)          0
+
+/*
+ * Microblaze works a little differently from other arches, because
+ * of the MICROBLAZE_64 reloc type. Here, a 32 bit address is split
+ * over two instructions, an 'imm' instruction which provides the top
+ * 16 bits, then the instruction "proper" which provides the low 16
+ * bits.
+ */
+
+/*
+ * Crack open a symbol reference and extract the address to be
+ * relocated. rp is a potentially unaligned pointer to the
+ * reference
+ */
+
+static inline unsigned long
+flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
+                        unsigned long flags, unsigned long *persistent)
+{
+        unsigned long addr;
+        (void)flags;
+
+        /* Is it a split 64/32 reference? */
+        if (relval & 0x80000000) {
+                /* Grab the two halves of the reference */
+                unsigned long val_hi, val_lo;
+
+                val_hi = get_unaligned(rp);
+                val_lo = get_unaligned(rp+1);
+
+                /* Crack the address out */
+                addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
+        } else {
+                /* Get the address straight out */
+                addr = get_unaligned(rp);
+        }
+
+        return addr;
+}
+
+/*
+ * Insert an address into the symbol reference at rp. rp is potentially
+ * unaligned.
+ */
+
+static inline void
+flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
+{
+        /* Is this a split 64/32 reloc? */
+        if (relval & 0x80000000) {
+                /* Get the two "halves" */
+                unsigned long val_hi = get_unaligned(rp);
+                unsigned long val_lo = get_unaligned(rp + 1);
+
+                /* insert the address */
+                val_hi = (val_hi & 0xffff0000) | addr >> 16;
+                val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
+
+                /* store the two halves back into memory */
+                put_unaligned(val_hi, rp);
+                put_unaligned(val_lo, rp+1);
+        } else {
+                /* Put it straight in, no messing around */
+                put_unaligned(addr, rp);
+        }
+}
+
+#define flat_get_relocate_addr(rel)     (rel & 0x7fffffff)
+
+#endif /* _ASM_MICROBLAZE_FLAT_H */
diff --git a/arch/microblaze/include/asm/ftrace.h b/arch/microblaze/include/asm/ftrace.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/arch/microblaze/include/asm/ftrace.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
new file mode 100644
index 000000000000..0b745828f42b
--- /dev/null
+++ b/arch/microblaze/include/asm/futex.h
@@ -0,0 +1 @@
+#include <asm-generic/futex.h>
diff --git a/arch/microblaze/include/asm/gpio.h b/arch/microblaze/include/asm/gpio.h
new file mode 100644
index 000000000000..ea04632399d8
--- /dev/null
+++ b/arch/microblaze/include/asm/gpio.h
@@ -0,0 +1,56 @@
+/*
+ * Generic GPIO API implementation for PowerPC.
+ *
+ * Copyright (c) 2007-2008  MontaVista Software, Inc.
+ *
+ * Author: Anton Vorontsov <avorontsov@ru.mvista.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_GPIO_H
+#define __ASM_POWERPC_GPIO_H
+
+#include <linux/errno.h>
+#include <asm-generic/gpio.h>
+
+#ifdef CONFIG_GPIOLIB
+
+/*
+ * We don't (yet) implement inlined/rapid versions for on-chip gpios.
+ * Just call gpiolib.
+ */
+static inline int gpio_get_value(unsigned int gpio)
+{
+        return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned int gpio, int value)
+{
+        __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned int gpio)
+{
+        return __gpio_cansleep(gpio);
+}
+
+/*
+ * Not implemented, yet.
+ */
+static inline int gpio_to_irq(unsigned int gpio)
+{
+        return -ENOSYS;
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+        return -EINVAL;
+}
+
+#endif /* CONFIG_GPIOLIB */
+
+#endif /* __ASM_POWERPC_GPIO_H */
diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h
new file mode 100644
index 000000000000..0f2d6b013e11
--- /dev/null
+++ b/arch/microblaze/include/asm/hardirq.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_HARDIRQ_H
+#define _ASM_MICROBLAZE_HARDIRQ_H
+
+#include <linux/cache.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/current.h>
+#include <linux/ptrace.h>
+
+/* should be defined in each interrupt controller driver */
+extern unsigned int get_irq(struct pt_regs *regs);
+
+typedef struct {
+        unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+void ack_bad_irq(unsigned int irq);
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+#endif /* _ASM_MICROBLAZE_HARDIRQ_H */
diff --git a/arch/microblaze/include/asm/hw_irq.h b/arch/microblaze/include/asm/hw_irq.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/arch/microblaze/include/asm/hw_irq.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
new file mode 100644
index 000000000000..8b5853ee6b5c
--- /dev/null
+++ b/arch/microblaze/include/asm/io.h
@@ -0,0 +1,208 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_IO_H
+#define _ASM_MICROBLAZE_IO_H
+
+#include <asm/byteorder.h>
+#include <asm/page.h>
+#include <linux/types.h>
+
+#define IO_SPACE_LIMIT (0xFFFFFFFF)
+
+static inline unsigned char __raw_readb(const volatile void __iomem *addr)
+{
+        return *(volatile unsigned char __force *)addr;
+}
+static inline unsigned short __raw_readw(const volatile void __iomem *addr)
+{
+        return *(volatile unsigned short __force *)addr;
+}
+static inline unsigned int __raw_readl(const volatile void __iomem *addr)
+{
+        return *(volatile unsigned int __force *)addr;
+}
+static inline unsigned long __raw_readq(const volatile void __iomem *addr)
+{
+        return *(volatile unsigned long __force *)addr;
+}
+static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
+{
+        *(volatile unsigned char __force *)addr = v;
+}
+static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
+{
+        *(volatile unsigned short __force *)addr = v;
+}
+static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
+{
+        *(volatile unsigned int __force *)addr = v;
+}
+static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
+{
+        *(volatile unsigned long __force *)addr = v;
+}
+
+/*
+ * read (readb, readw, readl, readq) and write (writeb, writew,
+ * writel, writeq) accessors are for PCI and thus littel endian.
+ * Linux 2.4 for Microblaze had this wrong.
+ */
+static inline unsigned char readb(const volatile void __iomem *addr)
+{
+        return *(volatile unsigned char __force *)addr;
+}
+static inline unsigned short readw(const volatile void __iomem *addr)
+{
+        return le16_to_cpu(*(volatile unsigned short __force *)addr);
+}
+static inline unsigned int readl(const volatile void __iomem *addr)
+{
+        return le32_to_cpu(*(volatile unsigned int __force *)addr);
+}
+static inline void writeb(unsigned char v, volatile void __iomem *addr)
+{
+        *(volatile unsigned char __force *)addr = v;
+}
+static inline void writew(unsigned short v, volatile void __iomem *addr)
+{
+        *(volatile unsigned short __force *)addr = cpu_to_le16(v);
+}
+static inline void writel(unsigned int v, volatile void __iomem *addr)
+{
+        *(volatile unsigned int __force *)addr = cpu_to_le32(v);
+}
+
+/* ioread and iowrite variants. thease are for now same as __raw_
+ * variants of accessors. we might check for endianess in the feature
+ */
+#define ioread8(addr)           __raw_readb((u8 *)(addr))
+#define ioread16(addr)          __raw_readw((u16 *)(addr))
+#define ioread32(addr)          __raw_readl((u32 *)(addr))
+#define iowrite8(v, addr)       __raw_writeb((u8)(v), (u8 *)(addr))
+#define iowrite16(v, addr)      __raw_writew((u16)(v), (u16 *)(addr))
+#define iowrite32(v, addr)      __raw_writel((u32)(v), (u32 *)(addr))
+
+/* These are the definitions for the x86 IO instructions
+ * inb/inw/inl/outb/outw/outl, the "string" versions
+ * insb/insw/insl/outsb/outsw/outsl, and the "pausing" versions
+ * inb_p/inw_p/...
+ * The macros don't do byte-swapping.
+ */
+#define inb(port)               readb((u8 *)((port)))
+#define outb(val, port)         writeb((val), (u8 *)((unsigned long)(port)))
+#define inw(port)               readw((u16 *)((port)))
+#define outw(val, port)         writew((val), (u16 *)((unsigned long)(port)))
+#define inl(port)               readl((u32 *)((port)))
+#define outl(val, port)         writel((val), (u32 *)((unsigned long)(port)))
+
+#define inb_p(port)             inb((port))
+#define outb_p(val, port)       outb((val), (port))
+#define inw_p(port)             inw((port))
+#define outw_p(val, port)       outw((val), (port))
+#define inl_p(port)             inl((port))
+#define outl_p(val, port)       outl((val), (port))
+
+#define memset_io(a, b, c)      memset((void *)(a), (b), (c))
+#define memcpy_fromio(a, b, c)  memcpy((a), (void *)(b), (c))
+#define memcpy_toio(a, b, c)    memcpy((void *)(a), (b), (c))
+
+/**
+ *      virt_to_phys - map virtual addresses to physical
+ *      @address: address to remap
+ *
+ *      The returned physical address is the physical (CPU) mapping for
+ *      the memory address given. It is only valid to use this function on
+ *      addresses directly mapped or allocated via kmalloc.
+ *
+ *      This function does not give bus mappings for DMA transfers. In
+ *      almost all conceivable cases a device driver should not be using
+ *      this function
+ */
+static inline unsigned long __iomem virt_to_phys(volatile void *address)
+{
+        return __pa((unsigned long)address);
+}
+
+#define virt_to_bus virt_to_phys
+
+/**
+ *      phys_to_virt - map physical address to virtual
+ *      @address: address to remap
+ *
+ *      The returned virtual address is a current CPU mapping for
+ *      the memory address given. It is only valid to use this function on
+ *      addresses that have a kernel mapping
+ *
+ *      This function does not handle bus mappings for DMA transfers. In
+ *      almost all conceivable cases a device driver should not be using
+ *      this function
+ */
+static inline void *phys_to_virt(unsigned long address)
+{
+        return (void *)__va(address);
+}
+
+#define bus_to_virt(a) phys_to_virt(a)
+
+static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
+                        unsigned long flags)
+{
+        return (void *)address;
+}
+
+#define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr))
+#define iounmap(addr)           ((void)0)
+#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)    __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)   p
+
+/*
+ * Big Endian
+ */
+#define out_be32(a, v) __raw_writel((v), (void __iomem __force *)(a))
+#define out_be16(a, v) __raw_writew((v), (a))
+
+#define in_be32(a) __raw_readl((const void __iomem __force *)(a))
+#define in_be16(a) __raw_readw(a)
+
+/*
+ * Little endian
+ */
+
+#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a));
+#define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
+
+#define in_le32(a) __le32_to_cpu(__raw_readl(a))
+#define in_le16(a) __le16_to_cpu(__raw_readw(a))
+
+/* Byte ops */
+#define out_8(a, v) __raw_writeb((v), (a))
+#define in_8(a) __raw_readb(a)
+
+/* FIXME */
+static inline void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+        return (void __iomem *) (port);
+}
+
+static inline void ioport_unmap(void __iomem *addr)
+{
+        /* Nothing to do */
+}
+
+#endif /* _ASM_MICROBLAZE_IO_H */
diff --git a/arch/microblaze/include/asm/ioctl.h b/arch/microblaze/include/asm/ioctl.h
new file mode 100644
index 000000000000..b279fe06dfe5
--- /dev/null
+++ b/arch/microblaze/include/asm/ioctl.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctl.h>
diff --git a/arch/microblaze/include/asm/ioctls.h b/arch/microblaze/include/asm/ioctls.h
new file mode 100644
index 000000000000..03582b249204
--- /dev/null
+++ b/arch/microblaze/include/asm/ioctls.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_IOCTLS_H
+#define _ASM_MICROBLAZE_IOCTLS_H
+
+#include <linux/ioctl.h>
+
+/* 0x54 is just a magic number to make these relatively unique ('T') */
+
+#define TCGETS          0x5401
+#define TCSETS          0x5402
+#define TCSETSW         0x5403
+#define TCSETSF         0x5404
+#define TCGETA          0x5405
+#define TCSETA          0x5406
+#define TCSETAW         0x5407
+#define TCSETAF         0x5408
+#define TCSBRK          0x5409
+#define TCXONC          0x540A
+#define TCFLSH          0x540B
+#define TIOCEXCL        0x540C
+#define TIOCNXCL        0x540D
+#define TIOCSCTTY       0x540E
+#define TIOCGPGRP       0x540F
+#define TIOCSPGRP       0x5410
+#define TIOCOUTQ        0x5411
+#define TIOCSTI         0x5412
+#define TIOCGWINSZ      0x5413
+#define TIOCSWINSZ      0x5414
+#define TIOCMGET        0x5415
+#define TIOCMBIS        0x5416
+#define TIOCMBIC        0x5417
+#define TIOCMSET        0x5418
+#define TIOCGSOFTCAR    0x5419
+#define TIOCSSOFTCAR    0x541A
+#define FIONREAD        0x541B
+#define TIOCINQ         FIONREAD
+#define TIOCLINUX       0x541C
+#define TIOCCONS        0x541D
+#define TIOCGSERIAL     0x541E
+#define TIOCSSERIAL     0x541F
+#define TIOCPKT         0x5420
+#define FIONBIO         0x5421
+#define TIOCNOTTY       0x5422
+#define TIOCSETD        0x5423
+#define TIOCGETD        0x5424
+#define TCSBRKP         0x5425 /* Needed for POSIX tcsendbreak() */
+#define TIOCTTYGSTRUCT  0x5426 /* For debugging only */
+#define TIOCSBRK        0x5427 /* BSD compatibility */
+#define TIOCCBRK        0x5428 /* BSD compatibility */
+#define TIOCGSID        0x5429 /* Return the session ID of FD */
+/* Get Pty Number (of pty-mux device) */
+#define TIOCGPTN        _IOR('T', 0x30, unsigned int)
+#define TIOCSPTLCK      _IOW('T', 0x31, int) /* Lock/unlock Pty */
+
+#define FIONCLEX        0x5450 /* these numbers need to be adjusted. */
+#define FIOCLEX         0x5451
+#define FIOASYNC        0x5452
+#define TIOCSERCONFIG   0x5453
+#define TIOCSERGWILD    0x5454
+#define TIOCSERSWILD    0x5455
+#define TIOCGLCKTRMIOS  0x5456
+#define TIOCSLCKTRMIOS  0x5457
+#define TIOCSERGSTRUCT  0x5458 /* For debugging only */
+#define TIOCSERGETLSR   0x5459 /* Get line status register */
+#define TIOCSERGETMULTI 0x545A /* Get multiport config */
+#define TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TIOCMIWAIT      0x545C /* wait for a change on serial input line(s) */
+#define TIOCGICOUNT     0x545D /* read serial port inline interrupt counts */
+
+#define FIOQSIZE        0x545E
+
+/* Used for packet mode */
+#define TIOCPKT_DATA            0
+#define TIOCPKT_FLUSHREAD       1
+#define TIOCPKT_FLUSHWRITE      2
+#define TIOCPKT_STOP            4
+#define TIOCPKT_START           8
+#define TIOCPKT_NOSTOP          16
+#define TIOCPKT_DOSTOP          32
+
+#define TIOCSER_TEMT    0x01 /* Transmitter physically empty */
+
+#endif /* _ASM_MICROBLAZE_IOCTLS_H */
diff --git a/arch/microblaze/include/asm/ipc.h b/arch/microblaze/include/asm/ipc.h
new file mode 100644
index 000000000000..a46e3d9c2a3f
--- /dev/null
+++ b/arch/microblaze/include/asm/ipc.h
@@ -0,0 +1 @@
+#include <asm-generic/ipc.h>
diff --git a/arch/microblaze/include/asm/ipcbuf.h b/arch/microblaze/include/asm/ipcbuf.h
new file mode 100644
index 000000000000..b056fa420654
--- /dev/null
+++ b/arch/microblaze/include/asm/ipcbuf.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_IPCBUF_H
+#define _ASM_MICROBLAZE_IPCBUF_H
+
+/*
+ * The user_ipc_perm structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 32-bit mode_t and seq
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct ipc64_perm {
+        __kernel_key_t          key;
+        __kernel_uid32_t        uid;
+        __kernel_gid32_t        gid;
+        __kernel_uid32_t        cuid;
+        __kernel_gid32_t        cgid;
+        __kernel_mode_t         mode;
+        unsigned short          __pad1;
+        unsigned short          seq;
+        unsigned short          __pad2;
+        unsigned long           __unused1;
+        unsigned long           __unused2;
+};
+
+#endif /* _ASM_MICROBLAZE_IPCBUF_H */
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
new file mode 100644
index 000000000000..db515deaa720
--- /dev/null
+++ b/arch/microblaze/include/asm/irq.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_IRQ_H
+#define _ASM_MICROBLAZE_IRQ_H
+
+#define NR_IRQS 32
+
+#include <linux/interrupt.h>
+
+extern unsigned int nr_irq;
+
+#define NO_IRQ (-1)
+
+static inline int irq_canonicalize(int irq)
+{
+        return irq;
+}
+
+struct pt_regs;
+extern void do_IRQ(struct pt_regs *regs);
+
+/* irq_of_parse_and_map - Parse and Map an interrupt into linux virq space
+ * @device: Device node of the device whose interrupt is to be mapped
+ * @index: Index of the interrupt to map
+ *
+ * This function is a wrapper that chains of_irq_map_one() and
+ * irq_create_of_mapping() to make things easier to callers
+ */
+struct device_node;
+extern unsigned int irq_of_parse_and_map(struct device_node *dev, int index);
+
+/** FIXME - not implement
+ * irq_dispose_mapping - Unmap an interrupt
+ * @virq: linux virq number of the interrupt to unmap
+ */
+static inline void irq_dispose_mapping(unsigned int virq)
+{
+        return;
+}
+
+#endif /* _ASM_MICROBLAZE_IRQ_H */
diff --git a/arch/microblaze/include/asm/irq_regs.h b/arch/microblaze/include/asm/irq_regs.h
new file mode 100644
index 000000000000..3dd9c0b70270
--- /dev/null
+++ b/arch/microblaze/include/asm/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h
new file mode 100644
index 000000000000..dea65645a4f8
--- /dev/null
+++ b/arch/microblaze/include/asm/irqflags.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_IRQFLAGS_H
+#define _ASM_MICROBLAZE_IRQFLAGS_H
+
+#include <linux/irqflags.h>
+
+# if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+
+# define local_irq_save(flags)                          \
+        do {                                            \
+                asm volatile ("# local_irq_save \n\t"   \
+                                "msrclr %0, %1  \n\t"   \
+                                "nop    \n\t"           \
+                                : "=r"(flags)           \
+                                : "i"(MSR_IE)           \
+                                : "memory");            \
+        } while (0)
+
+# define local_irq_disable()                                    \
+        do {                                                    \
+                asm volatile ("# local_irq_disable \n\t"        \
+                                "msrclr r0, %0 \n\t"            \
+                                "nop    \n\t"                   \
+                                :                               \
+                                : "i"(MSR_IE)                   \
+                                : "memory");                    \
+        } while (0)
+
+# define local_irq_enable()                                     \
+        do {                                                    \
+                asm volatile ("# local_irq_enable \n\t"         \
+                                "msrset r0, %0 \n\t"            \
+                                "nop    \n\t"                   \
+                                :                               \
+                                : "i"(MSR_IE)                   \
+                                : "memory");                    \
+        } while (0)
+
+# else /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 0 */
+
+# define local_irq_save(flags)                                  \
+        do {                                                    \
+                register unsigned tmp;                          \
+                asm volatile ("# local_irq_save \n\t"           \
+                                "mfs    %0, rmsr \n\t"          \
+                                "nop \n\t"                      \
+                                "andi   %1, %0, %2 \n\t"        \
+                                "mts    rmsr, %1 \n\t"          \
+                                "nop \n\t"                      \
+                                : "=r"(flags), "=r" (tmp)       \
+                                : "i"(~MSR_IE)                  \
+                                : "memory");                    \
+        } while (0)
+
+# define local_irq_disable()                                    \
+        do {                                                    \
+                register unsigned tmp;                          \
+                asm volatile ("# local_irq_disable \n\t"        \
+                                "mfs    %0, rmsr \n\t"          \
+                                "nop \n\t"                      \
+                                "andi   %0, %0, %1 \n\t"        \
+                                "mts    rmsr, %0 \n\t"          \
+                                "nop \n\t"                      \
+                                : "=r"(tmp)                     \
+                                : "i"(~MSR_IE)                  \
+                                : "memory");                    \
+        } while (0)
+
+# define local_irq_enable()                                     \
+        do {                                                    \
+                register unsigned tmp;                          \
+                asm volatile ("# local_irq_enable \n\t"         \
+                                "mfs    %0, rmsr \n\t"          \
+                                "nop \n\t"                      \
+                                "ori    %0, %0, %1 \n\t"        \
+                                "mts    rmsr, %0 \n\t"          \
+                                "nop \n\t"                      \
+                                : "=r"(tmp)                     \
+                                : "i"(MSR_IE)                   \
+                                : "memory");                    \
+        } while (0)
+
+# endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+
+#define local_save_flags(flags)                                 \
+        do {                                                    \
+                asm volatile ("# local_save_flags \n\t"         \
+                                "mfs    %0, rmsr \n\t"          \
+                                "nop    \n\t"                   \
+                                : "=r"(flags)                   \
+                                :                               \
+                                : "memory");                    \
+        } while (0)
+
+#define local_irq_restore(flags)                        \
+        do {                                            \
+                asm volatile ("# local_irq_restore \n\t"\
+                                "mts    rmsr, %0 \n\t"  \
+                                "nop    \n\t"           \
+                                :                       \
+                                : "r"(flags)            \
+                                : "memory");            \
+        } while (0)
+
+static inline int irqs_disabled(void)
+{
+        unsigned long flags;
+
+        local_save_flags(flags);
+        return ((flags & MSR_IE) == 0);
+}
+
+#define raw_irqs_disabled irqs_disabled
+#define raw_irqs_disabled_flags(flags)  ((flags) == 0)
+
+#endif /* _ASM_MICROBLAZE_IRQFLAGS_H */
diff --git a/arch/microblaze/include/asm/kdebug.h b/arch/microblaze/include/asm/kdebug.h
new file mode 100644
index 000000000000..6ece1b037665
--- /dev/null
+++ b/arch/microblaze/include/asm/kdebug.h
@@ -0,0 +1 @@
+#include <asm-generic/kdebug.h>
diff --git a/arch/microblaze/include/asm/kmap_types.h b/arch/microblaze/include/asm/kmap_types.h
new file mode 100644
index 000000000000..4d7e222f5dd7
--- /dev/null
+++ b/arch/microblaze/include/asm/kmap_types.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_KMAP_TYPES_H
+#define _ASM_MICROBLAZE_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 /* _ASM_MICROBLAZE_KMAP_TYPES_H */
diff --git a/arch/microblaze/include/asm/linkage.h b/arch/microblaze/include/asm/linkage.h
new file mode 100644
index 000000000000..3a8e36d057eb
--- /dev/null
+++ b/arch/microblaze/include/asm/linkage.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_LINKAGE_H
+#define _ASM_MICROBLAZE_LINKAGE_H
+
+#define __ALIGN         .align 4
+#define __ALIGN_STR     ".align 4"
+
+#endif /* _ASM_MICROBLAZE_LINKAGE_H */
diff --git a/arch/microblaze/include/asm/lmb.h b/arch/microblaze/include/asm/lmb.h
new file mode 100644
index 000000000000..a0a0a929c293
--- /dev/null
+++ b/arch/microblaze/include/asm/lmb.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_LMB_H
+#define _ASM_MICROBLAZE_LMB_H
+
+/* LMB limit is OFF */
+#define LMB_REAL_LIMIT  0xFFFFFFFF
+
+#endif /* _ASM_MICROBLAZE_LMB_H */
+
+
diff --git a/arch/microblaze/include/asm/local.h b/arch/microblaze/include/asm/local.h
new file mode 100644
index 000000000000..c11c530f74d0
--- /dev/null
+++ b/arch/microblaze/include/asm/local.h
@@ -0,0 +1 @@
+#include <asm-generic/local.h>
diff --git a/arch/microblaze/include/asm/mman.h b/arch/microblaze/include/asm/mman.h
new file mode 100644
index 000000000000..4914b1329445
--- /dev/null
+++ b/arch/microblaze/include/asm/mman.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMAN_H
+#define _ASM_MICROBLAZE_MMAN_H
+
+#include <asm-generic/mman.h>
+
+#define MAP_GROWSDOWN   0x0100 /* stack-like segment */
+#define MAP_DENYWRITE   0x0800 /* ETXTBSY */
+#define MAP_EXECUTABLE  0x1000 /* mark it as an executable */
+#define MAP_LOCKED      0x2000 /* pages are locked */
+#define MAP_NORESERVE   0x4000 /* don't check for reservations */
+#define MAP_POPULATE    0x8000 /* populate (prefault) pagetables */
+#define MAP_NONBLOCK    0x10000 /* do not block on IO */
+
+#define MCL_CURRENT     1 /* lock all current mappings */
+#define MCL_FUTURE      2 /* lock all future mappings */
+
+#endif /* _ASM_MICROBLAZE_MMAN_H */
diff --git a/arch/microblaze/include/asm/mmu.h b/arch/microblaze/include/asm/mmu.h
new file mode 100644
index 000000000000..0e0431d61635
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMU_H
+#define _ASM_MICROBLAZE_MMU_H
+
+#ifndef __ASSEMBLY__
+typedef struct {
+        struct vm_list_struct   *vmlist;
+        unsigned long           end_brk;
+} mm_context_t;
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_MMU_H */
diff --git a/arch/microblaze/include/asm/mmu_context.h b/arch/microblaze/include/asm/mmu_context.h
new file mode 100644
index 000000000000..150ca01b74ba
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu_context.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMU_CONTEXT_H
+#define _ASM_MICROBLAZE_MMU_CONTEXT_H
+
+# define init_new_context(tsk, mm)              ({ 0; })
+
+# define enter_lazy_tlb(mm, tsk)                do {} while (0)
+# define change_mm_context(old, ctx, _pml4)     do {} while (0)
+# define destroy_context(mm)                    do {} while (0)
+# define deactivate_mm(tsk, mm)                 do {} while (0)
+# define switch_mm(prev, next, tsk)             do {} while (0)
+# define activate_mm(prev, next)                do {} while (0)
+
+#endif /* _ASM_MICROBLAZE_MMU_CONTEXT_H */
diff --git a/arch/microblaze/include/asm/module.h b/arch/microblaze/include/asm/module.h
new file mode 100644
index 000000000000..914565a90315
--- /dev/null
+++ b/arch/microblaze/include/asm/module.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_MODULE_H
+#define _ASM_MICROBLAZE_MODULE_H
+
+/* Microblaze Relocations */
+#define R_MICROBLAZE_NONE 0
+#define R_MICROBLAZE_32 1
+#define R_MICROBLAZE_32_PCREL 2
+#define R_MICROBLAZE_64_PCREL 3
+#define R_MICROBLAZE_32_PCREL_LO 4
+#define R_MICROBLAZE_64 5
+#define R_MICROBLAZE_32_LO 6
+#define R_MICROBLAZE_SRO32 7
+#define R_MICROBLAZE_SRW32 8
+#define R_MICROBLAZE_64_NONE 9
+#define R_MICROBLAZE_32_SYM_OP_SYM 10
+/* Keep this the last entry. */
+#define R_MICROBLAZE_NUM 11
+
+struct mod_arch_specific {
+        int foo;
+};
+
+#define Elf_Shdr        Elf32_Shdr
+#define Elf_Sym         Elf32_Sym
+#define Elf_Ehdr        Elf32_Ehdr
+
+typedef struct { volatile int counter; } module_t;
+
+#endif /* _ASM_MICROBLAZE_MODULE_H */
diff --git a/arch/microblaze/include/asm/msgbuf.h b/arch/microblaze/include/asm/msgbuf.h
new file mode 100644
index 000000000000..09dd97097211
--- /dev/null
+++ b/arch/microblaze/include/asm/msgbuf.h
@@ -0,0 +1,31 @@
+#ifndef _ASM_MICROBLAZE_MSGBUF_H
+#define _ASM_MICROBLAZE_MSGBUF_H
+
+/*
+ * The msqid64_ds structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct msqid64_ds {
+        struct ipc64_perm msg_perm;
+        __kernel_time_t msg_stime; /* last msgsnd time */
+        unsigned long __unused1;
+        __kernel_time_t msg_rtime; /* last msgrcv time */
+        unsigned long __unused2;
+        __kernel_time_t msg_ctime; /* last change time */
+        unsigned long __unused3;
+        unsigned long msg_cbytes; /* current number of bytes on queue */
+        unsigned long msg_qnum; /* number of messages in queue */
+        unsigned long msg_qbytes; /* max number of bytes on queue */
+        __kernel_pid_t msg_lspid; /* pid of last msgsnd */
+        __kernel_pid_t msg_lrpid; /* last receive pid */
+        unsigned long __unused4;
+        unsigned long __unused5;
+};
+
+#endif /* _ASM_MICROBLAZE_MSGBUF_H */
diff --git a/arch/microblaze/include/asm/mutex.h b/arch/microblaze/include/asm/mutex.h
new file mode 100644
index 000000000000..ff6101aa2c71
--- /dev/null
+++ b/arch/microblaze/include/asm/mutex.h
@@ -0,0 +1 @@
+#include <asm-generic/mutex-dec.h>
diff --git a/arch/microblaze/include/asm/namei.h b/arch/microblaze/include/asm/namei.h
new file mode 100644
index 000000000000..61d60b8a07d5
--- /dev/null
+++ b/arch/microblaze/include/asm/namei.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_NAMEI_H
+#define _ASM_MICROBLAZE_NAMEI_H
+
+#ifdef __KERNEL__
+
+/* This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ * Look at asm-sparc/namei.h for details.
+ */
+#define __emul_prefix() NULL
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_NAMEI_H */
diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h
new file mode 100644
index 000000000000..ba917cfaefe6
--- /dev/null
+++ b/arch/microblaze/include/asm/of_device.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ *
+ * based on PowerPC of_device.h
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_OF_DEVICE_H
+#define _ASM_MICROBLAZE_OF_DEVICE_H
+#ifdef __KERNEL__
+
+#include <linux/device.h>
+#include <linux/of.h>
+
+/*
+ * The of_device is a kind of "base class" that is a superset of
+ * struct device for use by devices attached to an OF node and
+ * probed using OF properties.
+ */
+struct of_device {
+        struct device_node      *node; /* to be obsoleted */
+        u64                     dma_mask; /* DMA mask */
+        struct device           dev; /* Generic device interface */
+};
+
+extern ssize_t of_device_get_modalias(struct of_device *ofdev,
+                                        char *str, ssize_t len);
+
+extern struct of_device *of_device_alloc(struct device_node *np,
+                                         const char *bus_id,
+                                         struct device *parent);
+
+extern int of_device_uevent(struct device *dev,
+                            struct kobj_uevent_env *env);
+
+extern void of_device_make_bus_id(struct of_device *dev);
+
+/* This is just here during the transition */
+#include <linux/of_device.h>
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_OF_DEVICE_H */
diff --git a/arch/microblaze/include/asm/of_platform.h b/arch/microblaze/include/asm/of_platform.h
new file mode 100644
index 000000000000..187c0eedaece
--- /dev/null
+++ b/arch/microblaze/include/asm/of_platform.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
+ *                      <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_MICROBLAZE_OF_PLATFORM_H
+#define _ASM_MICROBLAZE_OF_PLATFORM_H
+
+/* This is just here during the transition */
+#include <linux/of_platform.h>
+
+/*
+ * The list of OF IDs below is used for matching bus types in the
+ * system whose devices are to be exposed as of_platform_devices.
+ *
+ * This is the default list valid for most platforms. This file provides
+ * functions who can take an explicit list if necessary though
+ *
+ * The search is always performed recursively looking for children of
+ * the provided device_node and recursively if such a children matches
+ * a bus type in the list
+ */
+
+static const struct of_device_id of_default_bus_ids[] = {
+        { .type = "soc", },
+        { .compatible = "soc", },
+        { .type = "plb5", },
+        { .type = "plb4", },
+        { .type = "opb", },
+        { .type = "simple", },
+        {},
+};
+
+/* Platform drivers register/unregister */
+static inline int of_register_platform_driver(struct of_platform_driver *drv)
+{
+        return of_register_driver(drv, &of_platform_bus_type);
+}
+static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
+{
+        of_unregister_driver(drv);
+}
+
+/* Platform devices and busses creation */
+extern struct of_device *of_platform_device_create(struct device_node *np,
+                                                const char *bus_id,
+                                                struct device *parent);
+/* pseudo "matches" value to not do deep probe */
+#define OF_NO_DEEP_PROBE ((struct of_device_id *)-1)
+
+extern int of_platform_bus_probe(struct device_node *root,
+                                const struct of_device_id *matches,
+                                struct device *parent);
+
+extern struct of_device *of_find_device_by_phandle(phandle ph);
+
+extern void of_instantiate_rtc(void);
+
+#endif /* _ASM_MICROBLAZE_OF_PLATFORM_H */
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
new file mode 100644
index 000000000000..7238dcfcc517
--- /dev/null
+++ b/arch/microblaze/include/asm/page.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ * Changes for MMU support:
+ *    Copyright (C) 2007 Xilinx, Inc.  All rights reserved.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PAGE_H
+#define _ASM_MICROBLAZE_PAGE_H
+
+#include <linux/pfn.h>
+#include <asm/setup.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT      (12)
+#define PAGE_SIZE       (1UL << PAGE_SHIFT)
+#define PAGE_MASK       (~(PAGE_SIZE-1))
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+#define PAGE_UP(addr)   (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
+#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
+
+/* 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)
+
+/*
+ * PAGE_OFFSET -- the first address of the first page of memory. When not
+ * using MMU this corresponds to the first free page in physical memory (aligned
+ * on a page boundary).
+ */
+extern unsigned int __page_offset;
+#define PAGE_OFFSET __page_offset
+
+#define copy_page(to, from)                     memcpy((to), (from), PAGE_SIZE)
+#define get_user_page(vaddr)                    __get_free_page(GFP_KERNEL)
+#define free_user_page(page, addr)              free_page(addr)
+
+#define clear_page(pgaddr)                      memset((pgaddr), 0, PAGE_SIZE)
+
+
+#define clear_user_page(pgaddr, vaddr, page)    memset((pgaddr), 0, PAGE_SIZE)
+#define copy_user_page(vto, vfrom, vaddr, topg) \
+                        memcpy((vto), (vfrom), PAGE_SIZE)
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct page *pgtable_t;
+typedef struct { unsigned long  pte; }          pte_t;
+typedef struct { unsigned long  pgprot; }       pgprot_t;
+typedef struct { unsigned long  ste[64]; }      pmd_t;
+typedef struct { pmd_t          pue[1]; }       pud_t;
+typedef struct { pud_t          pge[1]; }       pgd_t;
+
+
+#define pte_val(x)      ((x).pte)
+#define pgprot_val(x)   ((x).pgprot)
+#define pmd_val(x)      ((x).ste[0])
+#define pud_val(x)      ((x).pue[0])
+#define pgd_val(x)      ((x).pge[0])
+
+#define __pte(x)        ((pte_t) { (x) })
+#define __pmd(x)        ((pmd_t) { (x) })
+#define __pgd(x)        ((pgd_t) { (x) })
+#define __pgprot(x)     ((pgprot_t) { (x) })
+
+/**
+ * Conversions for virtual address, physical address, pfn, and struct
+ * page are defined in the following files.
+ *
+ * virt -+
+ *       | asm-microblaze/page.h
+ * phys -+
+ *       | linux/pfn.h
+ *  pfn -+
+ *       | asm-generic/memory_model.h
+ * page -+
+ *
+ */
+
+extern unsigned long max_low_pfn;
+extern unsigned long min_low_pfn;
+extern unsigned long max_pfn;
+
+#define __pa(vaddr)             ((unsigned long) (vaddr))
+#define __va(paddr)             ((void *) (paddr))
+
+#define phys_to_pfn(phys)       (PFN_DOWN(phys))
+#define pfn_to_phys(pfn)        (PFN_PHYS(pfn))
+
+#define virt_to_pfn(vaddr)      (phys_to_pfn((__pa(vaddr))))
+#define pfn_to_virt(pfn)        __va(pfn_to_phys((pfn)))
+
+#define virt_to_page(vaddr)     (pfn_to_page(virt_to_pfn(vaddr)))
+#define page_to_virt(page)      (pfn_to_virt(page_to_pfn(page)))
+
+#define page_to_phys(page)      (pfn_to_phys(page_to_pfn(page)))
+#define page_to_bus(page)       (page_to_phys(page))
+#define phys_to_page(paddr)     (pfn_to_page(phys_to_pfn(paddr)))
+
+extern unsigned int memory_start;
+extern unsigned int memory_end;
+extern unsigned int memory_size;
+
+#define pfn_valid(pfn)          ((pfn) >= min_low_pfn && (pfn) < max_mapnr)
+
+#define ARCH_PFN_OFFSET         (PAGE_OFFSET >> PAGE_SHIFT)
+
+#else
+#define tophys(rd, rs)  (addik rd, rs, 0)
+#define tovirt(rd, rs)  (addik rd, rs, 0)
+#endif /* __ASSEMBLY__ */
+
+#define virt_addr_valid(vaddr)  (pfn_valid(virt_to_pfn(vaddr)))
+
+/* Convert between virtual and physical address for MMU.  */
+/* Handle MicroBlaze processor with virtual memory.  */
+#define __virt_to_phys(addr)    addr
+#define __phys_to_virt(addr)    addr
+
+#define TOPHYS(addr)  __virt_to_phys(addr)
+
+#endif /* __KERNEL__ */
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/page.h>
+
+#endif /* _ASM_MICROBLAZE_PAGE_H */
diff --git a/arch/microblaze/include/asm/param.h b/arch/microblaze/include/asm/param.h
new file mode 100644
index 000000000000..8c538a49616d
--- /dev/null
+++ b/arch/microblaze/include/asm/param.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PARAM_H
+#define _ASM_MICROBLAZE_PARAM_H
+
+#ifdef __KERNEL__
+#define HZ              CONFIG_HZ       /* internal kernel timer frequency */
+#define USER_HZ         100             /* for user interfaces in "ticks" */
+#define CLOCKS_PER_SEC  (USER_HZ)       /* frequency at which times() counts */
+#endif /* __KERNEL__ */
+
+#ifndef HZ
+#define HZ 100
+#endif
+
+#define EXEC_PAGESIZE   4096
+
+#ifndef NOGROUP
+#define NOGROUP         (-1)
+#endif
+
+#define MAXHOSTNAMELEN  64      /* max length of hostname */
+
+#endif /* _ASM_MICROBLAZE_PARAM_H */
diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h
new file mode 100644
index 000000000000..7ad28f6f5f1a
--- /dev/null
+++ b/arch/microblaze/include/asm/pci-bridge.h
@@ -0,0 +1 @@
+#include <linux/pci.h>
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
new file mode 100644
index 000000000000..ca03794cf3f0
--- /dev/null
+++ b/arch/microblaze/include/asm/pci.h
@@ -0,0 +1 @@
+#include <linux/io.h>
diff --git a/arch/microblaze/include/asm/percpu.h b/arch/microblaze/include/asm/percpu.h
new file mode 100644
index 000000000000..06a959d67234
--- /dev/null
+++ b/arch/microblaze/include/asm/percpu.h
@@ -0,0 +1 @@
+#include <asm-generic/percpu.h>
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
new file mode 100644
index 000000000000..2a4b35484010
--- /dev/null
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PGALLOC_H
+#define _ASM_MICROBLAZE_PGALLOC_H
+
+#define check_pgt_cache()       do {} while (0)
+
+#endif /* _ASM_MICROBLAZE_PGALLOC_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
new file mode 100644
index 000000000000..4df31e46568e
--- /dev/null
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PGTABLE_H
+#define _ASM_MICROBLAZE_PGTABLE_H
+
+#include <asm/setup.h>
+
+#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)         \
+                remap_pfn_range(vma, vaddr, pfn, size, prot)
+
+#define pgd_present(pgd)        (1) /* pages are always present on non MMU */
+#define pgd_none(pgd)           (0)
+#define pgd_bad(pgd)            (0)
+#define pgd_clear(pgdp)
+#define kern_addr_valid(addr)   (1)
+#define pmd_offset(a, b)        ((void *) 0)
+
+#define PAGE_NONE               __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_SHARED             __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_COPY               __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_READONLY           __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_KERNEL             __pgprot(0) /* these mean nothing to non MMU */
+
+#define __swp_type(x)           (0)
+#define __swp_offset(x)         (0)
+#define __swp_entry(typ, off)   ((swp_entry_t) { ((typ) | ((off) << 7)) })
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
+
+#ifndef __ASSEMBLY__
+static inline int pte_file(pte_t pte) { return 0; }
+#endif /* __ASSEMBLY__ */
+
+#define ZERO_PAGE(vaddr)        ({ BUG(); NULL; })
+
+#define swapper_pg_dir ((pgd_t *) NULL)
+
+#define pgtable_cache_init()    do {} while (0)
+
+#define arch_enter_lazy_cpu_mode()      do {} while (0)
+
+#ifndef __ASSEMBLY__
+#include <asm-generic/pgtable.h>
+
+void setup_memory(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_PGTABLE_H */
diff --git a/arch/microblaze/include/asm/poll.h b/arch/microblaze/include/asm/poll.h
new file mode 100644
index 000000000000..c98509d3149e
--- /dev/null
+++ b/arch/microblaze/include/asm/poll.h
@@ -0,0 +1 @@
+#include <asm-generic/poll.h>
diff --git a/arch/microblaze/include/asm/posix_types.h b/arch/microblaze/include/asm/posix_types.h
new file mode 100644
index 000000000000..b4df41c5dde2
--- /dev/null
+++ b/arch/microblaze/include/asm/posix_types.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_POSIX_TYPES_H
+#define _ASM_MICROBLAZE_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 int    __kernel_nlink_t;
+typedef long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned 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 int             __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 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 {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+        int     val[2];
+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+        int     __val[2];
+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+} __kernel_fsid_t;
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+
+#undef  __FD_SET
+#define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+
+#undef  __FD_CLR
+#define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+
+#undef  __FD_ISSET
+#define __FD_ISSET(d, set)      (!!((set)->fds_bits[__FDELT(d)] & __FDMASK(d)))
+
+#undef  __FD_ZERO
+#define __FD_ZERO(fdsetp) (memset(fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
+
+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+
+#endif /* _ASM_MICROBLAZE_POSIX_TYPES_H */
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
new file mode 100644
index 000000000000..d8e15434ba21
--- /dev/null
+++ b/arch/microblaze/include/asm/processor.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PROCESSOR_H
+#define _ASM_MICROBLAZE_PROCESSOR_H
+
+#include <asm/ptrace.h>
+#include <asm/setup.h>
+#include <asm/registers.h>
+#include <asm/segment.h>
+
+# ifndef __ASSEMBLY__
+/* from kernel/cpu/mb.c */
+extern const struct seq_operations cpuinfo_op;
+
+# define cpu_relax()            barrier()
+# define cpu_sleep()            do {} while (0)
+# define prepare_to_copy(tsk)   do {} while (0)
+
+# endif /* __ASSEMBLY__ */
+
+/*
+ * User space process size: memory size
+ *
+ * TASK_SIZE on MMU cpu is usually 1GB. However, on no-MMU arch, both
+ * user processes and the kernel is on the same memory region. They
+ * both share the memory space and that is limited by the amount of
+ * physical memory. thus, we set TASK_SIZE == amount of total memory.
+ */
+# define TASK_SIZE      (0x81000000 - 0x80000000)
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+# define current_text_addr() ({ __label__ _l; _l: &&_l; })
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's. We won't be using it
+ */
+# define TASK_UNMAPPED_BASE     0
+
+/* definition in include/linux/sched.h */
+struct task_struct;
+
+/* thread_struct is gone. use thread_info instead. */
+struct thread_struct { };
+# define INIT_THREAD    { }
+
+/* Do necessary setup to start up a newly executed thread. */
+static inline void start_thread(struct pt_regs *regs,
+                                unsigned long pc,
+                                unsigned long usp)
+{
+        regs->pc = pc;
+        regs->r1 = usp;
+        regs->kernel_mode = 0;
+}
+
+/* Free all resources held by a thread. */
+static inline void release_thread(struct task_struct *dead_task)
+{
+}
+
+/* Free all resources held by a thread. */
+static inline void exit_thread(void)
+{
+}
+
+extern unsigned long thread_saved_pc(struct task_struct *t);
+
+extern unsigned long get_wchan(struct task_struct *p);
+
+/*
+ * create a kernel thread without removing it from tasklists
+ */
+extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+# define task_pt_regs(tsk) \
+                (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1)
+
+# define KSTK_EIP(tsk)  (0)
+# define KSTK_ESP(tsk)  (0)
+
+#endif /* _ASM_MICROBLAZE_PROCESSOR_H */
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
new file mode 100644
index 000000000000..20f7b3a926e8
--- /dev/null
+++ b/arch/microblaze/include/asm/prom.h
@@ -0,0 +1,313 @@
+/*
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PROM_H
+#define _ASM_MICROBLAZE_PROM_H
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/platform_device.h>
+#include <asm/irq.h>
+#include <asm/atomic.h>
+
+#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
+#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
+
+#define of_compat_cmp(s1, s2, l)        strncasecmp((s1), (s2), (l))
+#define of_prop_cmp(s1, s2)             strcmp((s1), (s2))
+#define of_node_cmp(s1, s2)             strcasecmp((s1), (s2))
+
+/* 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 */
+        /* version 17 fields below */
+        u32     dt_struct_size; /* size of the DT structure block */
+};
+
+typedef u32 phandle;
+typedef u32 ihandle;
+
+struct property {
+        char    *name;
+        int     length;
+        void    *value;
+        struct property *next;
+};
+
+struct device_node {
+        const char *name;
+        const char *type;
+        phandle node;
+        phandle linux_phandle;
+        char    *full_name;
+
+        struct  property *properties;
+        struct  property *deadprops; /* removed 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;
+
+static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
+{
+        return test_bit(flag, &n->_flags);
+}
+
+static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
+{
+        set_bit(flag, &n->_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;
+}
+
+extern struct device_node *allnodes;    /* temporary while merging */
+extern rwlock_t devtree_lock;   /* temporary while merging */
+
+extern struct device_node *of_find_all_nodes(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 scanning the flat device-tree at boot time */
+extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
+                                        const char *uname, int depth,
+                                        void *data),
+                                void *data);
+extern void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
+                                        unsigned long *size);
+extern int __init
+                of_flat_dt_is_compatible(unsigned long node, const char *name);
+extern unsigned long __init of_get_flat_dt_root(void);
+
+/* For updating the device tree at runtime */
+extern void of_attach_node(struct device_node *);
+extern void of_detach_node(struct device_node *);
+
+/* Other Prototypes */
+extern void finish_device_tree(void);
+extern void unflatten_device_tree(void);
+extern int early_uartlite_console(void);
+extern void early_init_devtree(void *);
+extern int machine_is_compatible(const char *compat);
+extern void print_properties(struct device_node *node);
+extern int prom_n_intr_cells(struct device_node *np);
+extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
+extern int prom_add_property(struct device_node *np, struct property *prop);
+extern int prom_remove_property(struct device_node *np, struct property *prop);
+extern int prom_update_property(struct device_node *np,
+                                struct property *newprop,
+                                struct property *oldprop);
+
+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);
+
+/*
+ * OF address retreival & translation
+ */
+
+/* Helper to read a big number; size is in cells (not bytes) */
+static inline u64 of_read_number(const u32 *cell, int size)
+{
+        u64 r = 0;
+        while (size--)
+                r = (r << 32) | *(cell++);
+        return r;
+}
+
+/* Like of_read_number, but we want an unsigned long result */
+#define of_read_ulong(cell, size)       of_read_number(cell, size)
+
+/* Translate an OF address block into a CPU physical address
+ */
+extern u64 of_translate_address(struct device_node *np, const u32 *addr);
+
+/* Extract an address from a device, returns the region size and
+ * the address space flags too. The PCI version uses a BAR number
+ * instead of an absolute index
+ */
+extern const u32 *of_get_address(struct device_node *dev, int index,
+                        u64 *size, unsigned int *flags);
+extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+                        u64 *size, unsigned int *flags);
+
+/* Get an address as a resource. Note that if your address is
+ * a PIO address, the conversion will fail if the physical address
+ * can't be internally converted to an IO token with
+ * pci_address_to_pio(), that is because it's either called to early
+ * or it can't be matched to any host bridge IO space
+ */
+extern int of_address_to_resource(struct device_node *dev, int index,
+                                struct resource *r);
+extern int of_pci_address_to_resource(struct device_node *dev, int bar,
+                                struct resource *r);
+
+/* Parse the ibm,dma-window property of an OF node into the busno, phys and
+ * size parameters.
+ */
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
+                unsigned long *busno, unsigned long *phys, unsigned long *size);
+
+extern void kdump_move_device_tree(void);
+
+/* CPU OF node matching */
+struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
+
+/* Get the MAC address */
+extern const void *of_get_mac_address(struct device_node *np);
+
+/*
+ * OF interrupt mapping
+ */
+
+/* This structure is returned when an interrupt is mapped. The controller
+ * field needs to be put() after use
+ */
+
+#define OF_MAX_IRQ_SPEC         4 /* We handle specifiers of at most 4 cells */
+
+struct of_irq {
+        struct device_node *controller; /* Interrupt controller node */
+        u32 size; /* Specifier size */
+        u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
+};
+
+/**
+ * of_irq_map_init - Initialize the irq remapper
+ * @flags:      flags defining workarounds to enable
+ *
+ * Some machines have bugs in the device-tree which require certain workarounds
+ * to be applied. Call this before any interrupt mapping attempts to enable
+ * those workarounds.
+ */
+#define OF_IMAP_OLDWORLD_MAC    0x00000001
+#define OF_IMAP_NO_PHANDLE      0x00000002
+
+extern void of_irq_map_init(unsigned int flags);
+
+/**
+ * of_irq_map_raw - Low level interrupt tree parsing
+ * @parent:     the device interrupt parent
+ * @intspec:    interrupt specifier ("interrupts" property of the device)
+ * @ointsize:   size of the passed in interrupt specifier
+ * @addr:       address specifier (start of "reg" property of the device)
+ * @out_irq:    structure of_irq filled by this function
+ *
+ * Returns 0 on success and a negative number on error
+ *
+ * This function is a low-level interrupt tree walking function. It
+ * can be used to do a partial walk with synthetized reg and interrupts
+ * properties, for example when resolving PCI interrupts when no device
+ * node exist for the parent.
+ *
+ */
+
+extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+                        u32 ointsize, const u32 *addr,
+                        struct of_irq *out_irq);
+
+/**
+ * of_irq_map_one - Resolve an interrupt for a device
+ * @device:     the device whose interrupt is to be resolved
+ * @index:      index of the interrupt to resolve
+ * @out_irq:    structure of_irq filled by this function
+ *
+ * This function resolves an interrupt, walking the tree, for a given
+ * device-tree node. It's the high level pendant to of_irq_map_raw().
+ * It also implements the workarounds for OldWolrd Macs.
+ */
+extern int of_irq_map_one(struct device_node *device, int index,
+                        struct of_irq *out_irq);
+
+/**
+ * of_irq_map_pci - Resolve the interrupt for a PCI device
+ * @pdev:       the device whose interrupt is to be resolved
+ * @out_irq:    structure of_irq filled by this function
+ *
+ * This function resolves the PCI interrupt for a given PCI device. If a
+ * device-node exists for a given pci_dev, it will use normal OF tree
+ * walking. If not, it will implement standard swizzling and walk up the
+ * PCI tree until an device-node is found, at which point it will finish
+ * resolving using the OF tree walking.
+ */
+struct pci_dev;
+extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
+
+extern int of_irq_to_resource(struct device_node *dev, int index,
+                        struct resource *r);
+
+/**
+ * of_iomap - Maps the memory mapped IO for a given device_node
+ * @device:     the device whose io range will be mapped
+ * @index:      index of the io range
+ *
+ * Returns a pointer to the mapped memory
+ */
+extern void __iomem *of_iomap(struct device_node *device, int index);
+
+/*
+ * NB: This is here while we transition from using asm/prom.h
+ * to linux/of.h
+ */
+#include <linux/of.h>
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_PROM_H */
diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h
new file mode 100644
index 000000000000..f1f03486428a
--- /dev/null
+++ b/arch/microblaze/include/asm/ptrace.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PTRACE_H
+#define _ASM_MICROBLAZE_PTRACE_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+typedef unsigned long microblaze_reg_t;
+
+struct pt_regs {
+        microblaze_reg_t r0;
+        microblaze_reg_t r1;
+        microblaze_reg_t r2;
+        microblaze_reg_t r3;
+        microblaze_reg_t r4;
+        microblaze_reg_t r5;
+        microblaze_reg_t r6;
+        microblaze_reg_t r7;
+        microblaze_reg_t r8;
+        microblaze_reg_t r9;
+        microblaze_reg_t r10;
+        microblaze_reg_t r11;
+        microblaze_reg_t r12;
+        microblaze_reg_t r13;
+        microblaze_reg_t r14;
+        microblaze_reg_t r15;
+        microblaze_reg_t r16;
+        microblaze_reg_t r17;
+        microblaze_reg_t r18;
+        microblaze_reg_t r19;
+        microblaze_reg_t r20;
+        microblaze_reg_t r21;
+        microblaze_reg_t r22;
+        microblaze_reg_t r23;
+        microblaze_reg_t r24;
+        microblaze_reg_t r25;
+        microblaze_reg_t r26;
+        microblaze_reg_t r27;
+        microblaze_reg_t r28;
+        microblaze_reg_t r29;
+        microblaze_reg_t r30;
+        microblaze_reg_t r31;
+        microblaze_reg_t pc;
+        microblaze_reg_t msr;
+        microblaze_reg_t ear;
+        microblaze_reg_t esr;
+        microblaze_reg_t fsr;
+        int kernel_mode;
+};
+
+#define kernel_mode(regs)               ((regs)->kernel_mode)
+#define user_mode(regs)                 (!kernel_mode(regs))
+
+#define instruction_pointer(regs)       ((regs)->pc)
+#define profile_pc(regs)                instruction_pointer(regs)
+
+void show_regs(struct pt_regs *);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_PTRACE_H */
diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h
new file mode 100644
index 000000000000..66f1b30dd097
--- /dev/null
+++ b/arch/microblaze/include/asm/pvr.h
@@ -0,0 +1,209 @@
+/*
+ * Support for the MicroBlaze PVR (Processor Version Register)
+ *
+ * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ * Copyright (C) 2007 - 2009 PetaLogix
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_PVR_H
+#define _ASM_MICROBLAZE_PVR_H
+
+#define PVR_MSR_BIT 0x400
+
+struct pvr_s {
+        unsigned pvr[16];
+};
+
+/* The following taken from Xilinx's standalone BSP pvr.h */
+
+/* Basic PVR mask */
+#define PVR0_PVR_FULL_MASK              0x80000000
+#define PVR0_USE_BARREL_MASK            0x40000000
+#define PVR0_USE_DIV_MASK               0x20000000
+#define PVR0_USE_HW_MUL_MASK            0x10000000
+#define PVR0_USE_FPU_MASK               0x08000000
+#define PVR0_USE_EXC_MASK               0x04000000
+#define PVR0_USE_ICACHE_MASK            0x02000000
+#define PVR0_USE_DCACHE_MASK            0x01000000
+#define PVR0_USE_MMU                    0x00800000      /* new */
+#define PVR0_VERSION_MASK               0x0000FF00
+#define PVR0_USER1_MASK                 0x000000FF
+
+/* User 2 PVR mask */
+#define PVR1_USER2_MASK                 0xFFFFFFFF
+
+/* Configuration PVR masks */
+#define PVR2_D_OPB_MASK                 0x80000000
+#define PVR2_D_LMB_MASK                 0x40000000
+#define PVR2_I_OPB_MASK                 0x20000000
+#define PVR2_I_LMB_MASK                 0x10000000
+#define PVR2_INTERRUPT_IS_EDGE_MASK     0x08000000
+#define PVR2_EDGE_IS_POSITIVE_MASK      0x04000000
+#define PVR2_D_PLB_MASK                 0x02000000      /* new */
+#define PVR2_I_PLB_MASK                 0x01000000      /* new */
+#define PVR2_INTERCONNECT               0x00800000      /* new */
+#define PVR2_USE_EXTEND_FSL             0x00080000      /* new */
+#define PVR2_USE_FSL_EXC                0x00040000      /* new */
+#define PVR2_USE_MSR_INSTR              0x00020000
+#define PVR2_USE_PCMP_INSTR             0x00010000
+#define PVR2_AREA_OPTIMISED             0x00008000
+#define PVR2_USE_BARREL_MASK            0x00004000
+#define PVR2_USE_DIV_MASK               0x00002000
+#define PVR2_USE_HW_MUL_MASK            0x00001000
+#define PVR2_USE_FPU_MASK               0x00000800
+#define PVR2_USE_MUL64_MASK             0x00000400
+#define PVR2_USE_FPU2_MASK              0x00000200      /* new */
+#define PVR2_USE_IPLBEXC                0x00000100
+#define PVR2_USE_DPLBEXC                0x00000080
+#define PVR2_OPCODE_0x0_ILL_MASK        0x00000040
+#define PVR2_UNALIGNED_EXC_MASK         0x00000020
+#define PVR2_ILL_OPCODE_EXC_MASK        0x00000010
+#define PVR2_IOPB_BUS_EXC_MASK          0x00000008
+#define PVR2_DOPB_BUS_EXC_MASK          0x00000004
+#define PVR2_DIV_ZERO_EXC_MASK          0x00000002
+#define PVR2_FPU_EXC_MASK               0x00000001
+
+/* Debug and exception PVR masks */
+#define PVR3_DEBUG_ENABLED_MASK         0x80000000
+#define PVR3_NUMBER_OF_PC_BRK_MASK      0x1E000000
+#define PVR3_NUMBER_OF_RD_ADDR_BRK_MASK 0x00380000
+#define PVR3_NUMBER_OF_WR_ADDR_BRK_MASK 0x0000E000
+#define PVR3_FSL_LINKS_MASK             0x00000380
+
+/* ICache config PVR masks */
+#define PVR4_USE_ICACHE_MASK            0x80000000
+#define PVR4_ICACHE_ADDR_TAG_BITS_MASK  0x7C000000
+#define PVR4_ICACHE_USE_FSL_MASK        0x02000000
+#define PVR4_ICACHE_ALLOW_WR_MASK       0x01000000
+#define PVR4_ICACHE_LINE_LEN_MASK       0x00E00000
+#define PVR4_ICACHE_BYTE_SIZE_MASK      0x001F0000
+
+/* DCache config PVR masks */
+#define PVR5_USE_DCACHE_MASK            0x80000000
+#define PVR5_DCACHE_ADDR_TAG_BITS_MASK  0x7C000000
+#define PVR5_DCACHE_USE_FSL_MASK        0x02000000
+#define PVR5_DCACHE_ALLOW_WR_MASK       0x01000000
+#define PVR5_DCACHE_LINE_LEN_MASK       0x00E00000
+#define PVR5_DCACHE_BYTE_SIZE_MASK      0x001F0000
+
+/* ICache base address PVR mask */
+#define PVR6_ICACHE_BASEADDR_MASK       0xFFFFFFFF
+
+/* ICache high address PVR mask */
+#define PVR7_ICACHE_HIGHADDR_MASK       0xFFFFFFFF
+
+/* DCache base address PVR mask */
+#define PVR8_DCACHE_BASEADDR_MASK       0xFFFFFFFF
+
+/* DCache high address PVR mask */
+#define PVR9_DCACHE_HIGHADDR_MASK       0xFFFFFFFF
+
+/* Target family PVR mask */
+#define PVR10_TARGET_FAMILY_MASK        0xFF000000
+
+/* MMU descrtiption */
+#define PVR11_USE_MMU                   0xC0000000
+#define PVR11_MMU_ITLB_SIZE             0x38000000
+#define PVR11_MMU_DTLB_SIZE             0x07000000
+#define PVR11_MMU_TLB_ACCESS            0x00C00000
+#define PVR11_MMU_ZONES                 0x003C0000
+/* MSR Reset value PVR mask */
+#define PVR11_MSR_RESET_VALUE_MASK      0x000007FF
+
+
+/* PVR access macros */
+#define PVR_IS_FULL(pvr)                (pvr.pvr[0] & PVR0_PVR_FULL_MASK)
+#define PVR_USE_BARREL(pvr)             (pvr.pvr[0] & PVR0_USE_BARREL_MASK)
+#define PVR_USE_DIV(pvr)                (pvr.pvr[0] & PVR0_USE_DIV_MASK)
+#define PVR_USE_HW_MUL(pvr)             (pvr.pvr[0] & PVR0_USE_HW_MUL_MASK)
+#define PVR_USE_FPU(pvr)                (pvr.pvr[0] & PVR0_USE_FPU_MASK)
+#define PVR_USE_FPU2(pvr)               (pvr.pvr[2] & PVR2_USE_FPU2_MASK)
+#define PVR_USE_ICACHE(pvr)             (pvr.pvr[0] & PVR0_USE_ICACHE_MASK)
+#define PVR_USE_DCACHE(pvr)             (pvr.pvr[0] & PVR0_USE_DCACHE_MASK)
+#define PVR_VERSION(pvr)        ((pvr.pvr[0] & PVR0_VERSION_MASK) >> 8)
+#define PVR_USER1(pvr)                  (pvr.pvr[0] & PVR0_USER1_MASK)
+#define PVR_USER2(pvr)                  (pvr.pvr[1] & PVR1_USER2_MASK)
+
+#define PVR_D_OPB(pvr)                  (pvr.pvr[2] & PVR2_D_OPB_MASK)
+#define PVR_D_LMB(pvr)                  (pvr.pvr[2] & PVR2_D_LMB_MASK)
+#define PVR_I_OPB(pvr)                  (pvr.pvr[2] & PVR2_I_OPB_MASK)
+#define PVR_I_LMB(pvr)                  (pvr.pvr[2] & PVR2_I_LMB_MASK)
+#define PVR_INTERRUPT_IS_EDGE(pvr) \
+                        (pvr.pvr[2] & PVR2_INTERRUPT_IS_EDGE_MASK)
+#define PVR_EDGE_IS_POSITIVE(pvr) \
+                        (pvr.pvr[2] & PVR2_EDGE_IS_POSITIVE_MASK)
+#define PVR_USE_MSR_INSTR(pvr)          (pvr.pvr[2] & PVR2_USE_MSR_INSTR)
+#define PVR_USE_PCMP_INSTR(pvr)         (pvr.pvr[2] & PVR2_USE_PCMP_INSTR)
+#define PVR_AREA_OPTIMISED(pvr)         (pvr.pvr[2] & PVR2_AREA_OPTIMISED)
+#define PVR_USE_MUL64(pvr)              (pvr.pvr[2] & PVR2_USE_MUL64_MASK)
+#define PVR_OPCODE_0x0_ILLEGAL(pvr) \
+                        (pvr.pvr[2] & PVR2_OPCODE_0x0_ILL_MASK)
+#define PVR_UNALIGNED_EXCEPTION(pvr) \
+                        (pvr.pvr[2] & PVR2_UNALIGNED_EXC_MASK)
+#define PVR_ILL_OPCODE_EXCEPTION(pvr) \
+                        (pvr.pvr[2] & PVR2_ILL_OPCODE_EXC_MASK)
+#define PVR_IOPB_BUS_EXCEPTION(pvr) \
+                        (pvr.pvr[2] & PVR2_IOPB_BUS_EXC_MASK)
+#define PVR_DOPB_BUS_EXCEPTION(pvr) \
+                        (pvr.pvr[2] & PVR2_DOPB_BUS_EXC_MASK)
+#define PVR_DIV_ZERO_EXCEPTION(pvr) \
+                        (pvr.pvr[2] & PVR2_DIV_ZERO_EXC_MASK)
+#define PVR_FPU_EXCEPTION(pvr)          (pvr.pvr[2] & PVR2_FPU_EXC_MASK)
+#define PVR_FSL_EXCEPTION(pvr)          (pvr.pvr[2] & PVR2_USE_EXTEND_FSL)
+
+#define PVR_DEBUG_ENABLED(pvr)          (pvr.pvr[3] & PVR3_DEBUG_ENABLED_MASK)
+#define PVR_NUMBER_OF_PC_BRK(pvr) \
+                        ((pvr.pvr[3] & PVR3_NUMBER_OF_PC_BRK_MASK) >> 25)
+#define PVR_NUMBER_OF_RD_ADDR_BRK(pvr) \
+                        ((pvr.pvr[3] & PVR3_NUMBER_OF_RD_ADDR_BRK_MASK) >> 19)
+#define PVR_NUMBER_OF_WR_ADDR_BRK(pvr) \
+                        ((pvr.pvr[3] & PVR3_NUMBER_OF_WR_ADDR_BRK_MASK) >> 13)
+#define PVR_FSL_LINKS(pvr)      ((pvr.pvr[3] & PVR3_FSL_LINKS_MASK) >> 7)
+
+#define PVR_ICACHE_ADDR_TAG_BITS(pvr) \
+                        ((pvr.pvr[4] & PVR4_ICACHE_ADDR_TAG_BITS_MASK) >> 26)
+#define PVR_ICACHE_USE_FSL(pvr)         (pvr.pvr[4] & PVR4_ICACHE_USE_FSL_MASK)
+#define PVR_ICACHE_ALLOW_WR(pvr)        (pvr.pvr[4] & PVR4_ICACHE_ALLOW_WR_MASK)
+#define PVR_ICACHE_LINE_LEN(pvr) \
+                        (1 << ((pvr.pvr[4] & PVR4_ICACHE_LINE_LEN_MASK) >> 21))
+#define PVR_ICACHE_BYTE_SIZE(pvr) \
+                        (1 << ((pvr.pvr[4] & PVR4_ICACHE_BYTE_SIZE_MASK) >> 16))
+
+#define PVR_DCACHE_ADDR_TAG_BITS(pvr) \
+                        ((pvr.pvr[5] & PVR5_DCACHE_ADDR_TAG_BITS_MASK) >> 26)
+#define PVR_DCACHE_USE_FSL(pvr)         (pvr.pvr[5] & PVR5_DCACHE_USE_FSL_MASK)
+#define PVR_DCACHE_ALLOW_WR(pvr)        (pvr.pvr[5] & PVR5_DCACHE_ALLOW_WR_MASK)
+#define PVR_DCACHE_LINE_LEN(pvr) \
+                        (1 << ((pvr.pvr[5] & PVR5_DCACHE_LINE_LEN_MASK) >> 21))
+#define PVR_DCACHE_BYTE_SIZE(pvr) \
+                        (1 << ((pvr.pvr[5] & PVR5_DCACHE_BYTE_SIZE_MASK) >> 16))
+
+
+#define PVR_ICACHE_BASEADDR(pvr)        (pvr.pvr[6] & PVR6_ICACHE_BASEADDR_MASK)
+#define PVR_ICACHE_HIGHADDR(pvr)        (pvr.pvr[7] & PVR7_ICACHE_HIGHADDR_MASK)
+
+#define PVR_DCACHE_BASEADDR(pvr)        (pvr.pvr[8] & PVR8_DCACHE_BASEADDR_MASK)
+#define PVR_DCACHE_HIGHADDR(pvr)        (pvr.pvr[9] & PVR9_DCACHE_HIGHADDR_MASK)
+
+#define PVR_TARGET_FAMILY(pvr)  ((pvr.pvr[10] & PVR10_TARGET_FAMILY_MASK) >> 24)
+
+#define PVR_MSR_RESET_VALUE(pvr) \
+                                (pvr.pvr[11] & PVR11_MSR_RESET_VALUE_MASK)
+
+/* mmu */
+#define PVR_USE_MMU(pvr)        ((pvr.pvr[11] & PVR11_USE_MMU) >> 30)
+#define PVR_MMU_ITLB_SIZE(pvr)  (pvr.pvr[11] & PVR11_MMU_ITLB_SIZE)
+#define PVR_MMU_DTLB_SIZE(pvr)  (pvr.pvr[11] & PVR11_MMU_DTLB_SIZE)
+#define PVR_MMU_TLB_ACCESS(pvr) (pvr.pvr[11] & PVR11_MMU_TLB_ACCESS)
+#define PVR_MMU_ZONES(pvr)      (pvr.pvr[11] & PVR11_MMU_ZONES)
+
+
+int cpu_has_pvr(void);
+void get_pvr(struct pvr_s *pvr);
+
+#endif /* _ASM_MICROBLAZE_PVR_H */
diff --git a/arch/microblaze/include/asm/registers.h b/arch/microblaze/include/asm/registers.h
new file mode 100644
index 000000000000..834142d9356f
--- /dev/null
+++ b/arch/microblaze/include/asm/registers.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_REGISTERS_H
+#define _ASM_MICROBLAZE_REGISTERS_H
+
+#define MSR_BE  (1<<0) /* 0x001 */
+#define MSR_IE  (1<<1) /* 0x002 */
+#define MSR_C   (1<<2) /* 0x004 */
+#define MSR_BIP (1<<3) /* 0x008 */
+#define MSR_FSL (1<<4) /* 0x010 */
+#define MSR_ICE (1<<5) /* 0x020 */
+#define MSR_DZ  (1<<6) /* 0x040 */
+#define MSR_DCE (1<<7) /* 0x080 */
+#define MSR_EE  (1<<8) /* 0x100 */
+#define MSR_EIP (1<<9) /* 0x200 */
+#define MSR_CC  (1<<31)
+
+/* Floating Point Status Register (FSR) Bits */
+#define FSR_IO          (1<<4) /* Invalid operation */
+#define FSR_DZ          (1<<3) /* Divide-by-zero */
+#define FSR_OF          (1<<2) /* Overflow */
+#define FSR_UF          (1<<1) /* Underflow */
+#define FSR_DO          (1<<0) /* Denormalized operand error */
+
+#endif /* _ASM_MICROBLAZE_REGISTERS_H */
diff --git a/arch/microblaze/include/asm/resource.h b/arch/microblaze/include/asm/resource.h
new file mode 100644
index 000000000000..04bc4db8921b
--- /dev/null
+++ b/arch/microblaze/include/asm/resource.h
@@ -0,0 +1 @@
+#include <asm-generic/resource.h>
diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h
new file mode 100644
index 000000000000..08ff1d049b42
--- /dev/null
+++ b/arch/microblaze/include/asm/scatterlist.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SCATTERLIST_H
+#define _ASM_MICROBLAZE_SCATTERLIST_H
+
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+        unsigned long   sg_magic;
+#endif
+        unsigned long   page_link;
+        dma_addr_t      dma_address;
+        unsigned int    offset;
+        unsigned int    length;
+};
+
+#define sg_dma_address(sg)      ((sg)->dma_address)
+#define sg_dma_len(sg)          ((sg)->length)
+
+#define ISA_DMA_THRESHOLD (~0UL)
+
+#endif /* _ASM_MICROBLAZE_SCATTERLIST_H */
diff --git a/arch/microblaze/include/asm/sections.h b/arch/microblaze/include/asm/sections.h
new file mode 100644
index 000000000000..8434a43e5421
--- /dev/null
+++ b/arch/microblaze/include/asm/sections.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SECTIONS_H
+#define _ASM_MICROBLAZE_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+# ifndef __ASSEMBLY__
+extern char _ssbss[], _esbss[];
+extern unsigned long __ivt_start[], __ivt_end[];
+
+#  ifdef CONFIG_MTD_UCLINUX
+extern char *_ebss;
+#  endif
+
+extern u32 _fdt_start[], _fdt_end[];
+
+# endif /* !__ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SECTIONS_H */
diff --git a/arch/microblaze/include/asm/segment.h b/arch/microblaze/include/asm/segment.h
new file mode 100644
index 000000000000..7f5dcc56eea1
--- /dev/null
+++ b/arch/microblaze/include/asm/segment.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SEGMENT_H
+#define _ASM_MICROBLAZE_SEGMENT_H
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+        unsigned long seg;
+} mm_segment_t;
+
+/*
+ * On Microblaze the fs value is actually the top of the corresponding
+ * address space.
+ *
+ * The fs value determines whether argument validity checking should be
+ * performed or not. If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ *
+ * For non-MMU arch like Microblaze, KERNEL_DS and USER_DS is equal.
+ */
+#  define KERNEL_DS     ((mm_segment_t){0})
+#  define USER_DS       KERNEL_DS
+
+# define get_ds()       (KERNEL_DS)
+# define get_fs()       (current_thread_info()->addr_limit)
+# define set_fs(x) \
+                do { current_thread_info()->addr_limit = (x); } while (0)
+
+# define segment_eq(a, b)               ((a).seg == (b).seg)
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SEGMENT_H */
diff --git a/arch/microblaze/include/asm/selfmod.h b/arch/microblaze/include/asm/selfmod.h
new file mode 100644
index 000000000000..c42aff2e6cd0
--- /dev/null
+++ b/arch/microblaze/include/asm/selfmod.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SELFMOD_H
+#define _ASM_MICROBLAZE_SELFMOD_H
+
+/*
+ * BARRIER_BASE_ADDR is constant address for selfmod function.
+ * do not change this value - selfmod function is in
+ * arch/microblaze/kernel/selfmod.c: selfmod_function()
+ *
+ * last 16 bits is used for storing register offset
+ */
+
+#define BARRIER_BASE_ADDR       0x1234ff00
+
+void selfmod_function(const int *arr_fce, const unsigned int base);
+
+#endif /* _ASM_MICROBLAZE_SELFMOD_H */
diff --git a/arch/microblaze/include/asm/sembuf.h b/arch/microblaze/include/asm/sembuf.h
new file mode 100644
index 000000000000..b804ed71a57e
--- /dev/null
+++ b/arch/microblaze/include/asm/sembuf.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SEMBUF_H
+#define _ASM_MICROBLAZE_SEMBUF_H
+
+/*
+ * The semid64_ds structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct semid64_ds {
+        struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
+        __kernel_time_t sem_otime; /* last semop time */
+        unsigned long   __unused1;
+        __kernel_time_t sem_ctime; /* last change time */
+        unsigned long   __unused2;
+        unsigned long   sem_nsems; /* no. of semaphores in array */
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+
+#endif /* _ASM_MICROBLAZE_SEMBUF_H */
diff --git a/arch/microblaze/include/asm/serial.h b/arch/microblaze/include/asm/serial.h
new file mode 100644
index 000000000000..39bfc8ce6af5
--- /dev/null
+++ b/arch/microblaze/include/asm/serial.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SERIAL_H
+#define _ASM_MICROBLAZE_SERIAL_H
+
+# define BASE_BAUD (1843200 / 16)
+
+#endif /* _ASM_MICROBLAZE_SERIAL_H */
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
new file mode 100644
index 000000000000..9b98e8e6abae
--- /dev/null
+++ b/arch/microblaze/include/asm/setup.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SETUP_H
+#define _ASM_MICROBLAZE_SETUP_H
+
+#define COMMAND_LINE_SIZE       256
+
+# ifndef __ASSEMBLY__
+
+#  ifdef __KERNEL__
+extern unsigned int boot_cpuid; /* move to smp.h */
+
+extern char cmd_line[COMMAND_LINE_SIZE];
+#  endif/* __KERNEL__ */
+
+void early_printk(const char *fmt, ...);
+
+int setup_early_printk(char *opt);
+void disable_early_printk(void);
+
+void heartbeat(void);
+void setup_heartbeat(void);
+
+unsigned long long sched_clock(void);
+
+void time_init(void);
+void init_IRQ(void);
+void machine_early_init(const char *cmdline, unsigned int ram,
+                                                unsigned int fdt);
+
+void machine_restart(char *cmd);
+void machine_shutdown(void);
+void machine_halt(void);
+void machine_power_off(void);
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SETUP_H */
diff --git a/arch/microblaze/include/asm/shmbuf.h b/arch/microblaze/include/asm/shmbuf.h
new file mode 100644
index 000000000000..f829c5843618
--- /dev/null
+++ b/arch/microblaze/include/asm/shmbuf.h
@@ -0,0 +1,42 @@
+#ifndef _ASM_MICROBLAZE_SHMBUF_H
+#define _ASM_MICROBLAZE_SHMBUF_H
+
+/*
+ * The shmid64_ds structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct shmid64_ds {
+        struct ipc64_perm       shm_perm; /* operation perms */
+        size_t                  shm_segsz; /* size of segment (bytes) */
+        __kernel_time_t         shm_atime; /* last attach time */
+        unsigned long           __unused1;
+        __kernel_time_t         shm_dtime; /* last detach time */
+        unsigned long           __unused2;
+        __kernel_time_t         shm_ctime; /* last change time */
+        unsigned long           __unused3;
+        __kernel_pid_t          shm_cpid; /* pid of creator */
+        __kernel_pid_t          shm_lpid; /* pid of last operator */
+        unsigned long           shm_nattch; /* no. of current attaches */
+        unsigned long           __unused4;
+        unsigned long           __unused5;
+};
+
+struct shminfo64 {
+        unsigned long   shmmax;
+        unsigned long   shmmin;
+        unsigned long   shmmni;
+        unsigned long   shmseg;
+        unsigned long   shmall;
+        unsigned long   __unused1;
+        unsigned long   __unused2;
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif /* _ASM_MICROBLAZE_SHMBUF_H */
diff --git a/arch/microblaze/include/asm/shmparam.h b/arch/microblaze/include/asm/shmparam.h
new file mode 100644
index 000000000000..9f5fc2b3b6a3
--- /dev/null
+++ b/arch/microblaze/include/asm/shmparam.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_SHMPARAM_H
+#define _ASM_MICROBLAZE_SHMPARAM_H
+
+#define SHMLBA  PAGE_SIZE /* attach addr a multiple of this */
+
+#endif /* _ASM_MICROBLAZE_SHMPARAM_H */
diff --git a/arch/microblaze/include/asm/sigcontext.h b/arch/microblaze/include/asm/sigcontext.h
new file mode 100644
index 000000000000..55873c80c917
--- /dev/null
+++ b/arch/microblaze/include/asm/sigcontext.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SIGCONTEXT_H
+#define _ASM_MICROBLAZE_SIGCONTEXT_H
+
+/* FIXME should be linux/ptrace.h */
+#include <asm/ptrace.h>
+
+struct sigcontext {
+        struct pt_regs regs;
+        unsigned long oldmask;
+};
+
+#endif /* _ASM_MICROBLAZE_SIGCONTEXT_H */
diff --git a/arch/microblaze/include/asm/siginfo.h b/arch/microblaze/include/asm/siginfo.h
new file mode 100644
index 000000000000..f162911a8f50
--- /dev/null
+++ b/arch/microblaze/include/asm/siginfo.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SIGINFO_H
+#define _ASM_MICROBLAZE_SIGINFO_H
+
+#include <linux/types.h>
+#include <asm-generic/siginfo.h>
+
+#endif /* _ASM_MICROBLAZE_SIGINFO_H */
diff --git a/arch/microblaze/include/asm/signal.h b/arch/microblaze/include/asm/signal.h
new file mode 100644
index 000000000000..9676fad3486c
--- /dev/null
+++ b/arch/microblaze/include/asm/signal.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *      Yasushi SHOJI <yashi@atmark-techno.com>
+ *      Tetsuya OHKAWA <tetsuya@atmark-techno.com>
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SIGNAL_H
+#define _ASM_MICROBLAZE_SIGNAL_H
+
+#define SIGHUP          1
+#define SIGINT          2
+#define SIGQUIT         3
+#define SIGILL          4
+#define SIGTRAP         5
+#define SIGABRT         6
+#define SIGIOT          6
+#define SIGBUS          7
+#define SIGFPE          8
+#define SIGKILL         9
+#define SIGUSR1         10
+#define SIGSEGV         11
+#define SIGUSR2         12
+#define SIGPIPE         13
+#define SIGALRM         14
+#define SIGTERM         15
+#define SIGSTKFLT       16
+#define SIGCHLD         17
+#define SIGCONT         18
+#define SIGSTOP         19
+#define SIGTSTP         20
+#define SIGTTIN         21
+#define SIGTTOU         22
+#define SIGURG          23
+#define SIGXCPU         24
+#define SIGXFSZ         25
+#define SIGVTALRM       26
+#define SIGPROF         27
+#define SIGWINCH        28
+#define SIGIO           29
+#define SIGPOLL         SIGIO
+/*
+#define SIGLOST         29
+*/
+#define SIGPWR          30
+#define SIGSYS          31
+#define SIGUNUSED       31
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN        32
+#define SIGRTMAX        _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP    0x00000001
+#define SA_NOCLDWAIT    0x00000002
+#define SA_SIGINFO      0x00000004
+#define SA_ONSTACK      0x08000000
+#define SA_RESTART      0x10000000
+#define SA_NODEFER      0x40000000
+#define SA_RESETHAND    0x80000000
+
+#define SA_NOMASK       SA_NODEFER
+#define SA_ONESHOT      SA_RESETHAND
+
+#define SA_RESTORER     0x04000000
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
+
+#define MINSIGSTKSZ     2048
+#define SIGSTKSZ        8192
+
+# ifndef __ASSEMBLY__
+# include <linux/types.h>
+# include <asm-generic/signal.h>
+
+/* Avoid too many header ordering problems. */
+struct siginfo;
+
+#  ifdef __KERNEL__
+/*
+ * Most things should be clean enough to redefine this at will, if care
+ * is taken to make libc match.
+ */
+#  define _NSIG         64
+#  define _NSIG_BPW     32
+#  define _NSIG_WORDS   (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t; /* at least 32 bits */
+
+typedef struct {
+        unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+struct old_sigaction {
+        __sighandler_t sa_handler;
+        old_sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+struct sigaction {
+        __sighandler_t sa_handler;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+        sigset_t sa_mask; /* mask last for extensibility */
+};
+
+struct k_sigaction {
+        struct sigaction sa;
+};
+
+#  include <asm/sigcontext.h>
+#  undef __HAVE_ARCH_SIG_BITOPS
+
+#  define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#  else /* !__KERNEL__ */
+
+/* Here we must cater to libcs that poke about in kernel headers. */
+
+#  define NSIG          32
+typedef unsigned long sigset_t;
+
+struct sigaction {
+        union {
+        __sighandler_t _sa_handler;
+        void (*_sa_sigaction)(int, struct siginfo *, void *);
+        } _u;
+        sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+#  define sa_handler    _u._sa_handler
+#  define sa_sigaction  _u._sa_sigaction
+
+#  endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+        void *ss_sp;
+        int ss_flags;
+        size_t ss_size;
+} stack_t;
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SIGNAL_H */
diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h
new file mode 100644
index 000000000000..825936860314
--- /dev/null
+++ b/arch/microblaze/include/asm/socket.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SOCKET_H
+#define _ASM_MICROBLAZE_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockoptions(2) */
+#define SOL_SOCKET      1
+
+#define SO_DEBUG        1
+#define SO_REUSEADDR    2
+#define SO_TYPE         3
+#define SO_ERROR        4
+#define SO_DONTROUTE    5
+#define SO_BROADCAST    6
+#define SO_SNDBUF       7
+#define SO_RCVBUF       8
+#define SO_SNDBUFFORCE  32
+#define SO_RCVBUFFORCE  33
+#define SO_KEEPALIVE    9
+#define SO_OOBINLINE    10
+#define SO_NO_CHECK     11
+#define SO_PRIORITY     12
+#define SO_LINGER       13
+#define SO_BSDCOMPAT    14
+/* To add :#define SO_REUSEPORT 15 */
+#define SO_PASSCRED     16
+#define SO_PEERCRED     17
+#define SO_RCVLOWAT     18
+#define SO_SNDLOWAT     19
+#define SO_RCVTIMEO     20
+#define SO_SNDTIMEO     21
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+#define SO_SECURITY_AUTHENTICATION              22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT        23
+#define SO_SECURITY_ENCRYPTION_NETWORK          24
+
+#define SO_BINDTODEVICE 25
+
+/* Socket filtering */
+#define SO_ATTACH_FILTER        26
+#define SO_DETACH_FILTER        27
+
+#define SO_PEERNAME             28
+#define SO_TIMESTAMP            29
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+
+#define SO_ACCEPTCONN           30
+
+#define SO_PEERSEC              31
+#define SO_PASSSEC              34
+
+#define SO_TIMESTAMPNS          35
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+
+#define SO_MARK                 36
+
+#define SO_TIMESTAMPING         37
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#endif /* _ASM_MICROBLAZE_SOCKET_H */
diff --git a/arch/microblaze/include/asm/sockios.h b/arch/microblaze/include/asm/sockios.h
new file mode 100644
index 000000000000..9fff57a701e1
--- /dev/null
+++ b/arch/microblaze/include/asm/sockios.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SOCKIOS_H
+#define _ASM_MICROBLAZE_SOCKIOS_H
+
+#include <linux/ioctl.h>
+
+/* Socket-level I/O control calls. */
+#define FIOSETOWN       0x8901
+#define SIOCSPGRP       0x8902
+#define FIOGETOWN       0x8903
+#define SIOCGPGRP       0x8904
+#define SIOCATMARK      0x8905
+#define SIOCGSTAMP      0x8906          /* Get stamp (timeval) */
+#define SIOCGSTAMPNS    0x8907          /* Get stamp (timespec) */
+
+#endif /* _ASM_MICROBLAZE_SOCKIOS_H */
diff --git a/arch/microblaze/include/asm/stat.h b/arch/microblaze/include/asm/stat.h
new file mode 100644
index 000000000000..5f18b8aed220
--- /dev/null
+++ b/arch/microblaze/include/asm/stat.h
@@ -0,0 +1,73 @@
+/*
+ * Microblaze stat structure
+ *
+ * Copyright (C) 2001,02,03 NEC Electronics Corporation
+ * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef _ASM_MICROBLAZE_STAT_H
+#define _ASM_MICROBLAZE_STAT_H
+
+#include <linux/posix_types.h>
+
+struct stat {
+        unsigned int    st_dev;
+        unsigned long   st_ino;
+        unsigned int    st_mode;
+        unsigned int    st_nlink;
+        unsigned int    st_uid;
+        unsigned int    st_gid;
+        unsigned int    st_rdev;
+        unsigned long   st_size;
+        unsigned long   st_blksize;
+        unsigned long   st_blocks;
+        unsigned long   st_atime;
+        unsigned long   __unused1; /* unsigned long  st_atime_nsec */
+        unsigned long   st_mtime;
+        unsigned long   __unused2; /* unsigned long  st_mtime_nsec */
+        unsigned long   st_ctime;
+        unsigned long   __unused3; /* unsigned long  st_ctime_nsec */
+        unsigned long   __unused4;
+        unsigned long   __unused5;
+};
+
+struct stat64 {
+        unsigned long long      st_dev;
+        unsigned long   __unused1;
+
+        unsigned long long      st_ino;
+
+        unsigned int    st_mode;
+        unsigned int    st_nlink;
+
+        unsigned int    st_uid;
+        unsigned int    st_gid;
+
+        unsigned long long      st_rdev;
+        unsigned long   __unused3;
+
+        long long       st_size;
+        unsigned long   st_blksize;
+
+        unsigned long   st_blocks; /* No. of 512-byte blocks allocated */
+        unsigned long   __unused4; /* future possible st_blocks high bits */
+
+        unsigned long   st_atime;
+        unsigned long   st_atime_nsec;
+
+        unsigned long   st_mtime;
+        unsigned long   st_mtime_nsec;
+
+        unsigned long   st_ctime;
+        unsigned long   st_ctime_nsec;
+
+        unsigned long   __unused8;
+};
+
+#endif /* _ASM_MICROBLAZE_STAT_H */
diff --git a/arch/microblaze/include/asm/statfs.h b/arch/microblaze/include/asm/statfs.h
new file mode 100644
index 000000000000..0b91fe198c20
--- /dev/null
+++ b/arch/microblaze/include/asm/statfs.h
@@ -0,0 +1 @@
+#include <asm-generic/statfs.h>
diff --git a/arch/microblaze/include/asm/string.h b/arch/microblaze/include/asm/string.h
new file mode 100644
index 000000000000..f7728c90fc18
--- /dev/null
+++ b/arch/microblaze/include/asm/string.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_STRING_H
+#define _ASM_MICROBLAZE_STRING_H
+
+#ifndef __KERNEL__
+
+#define __HAVE_ARCH_MEMSET
+#define __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMMOVE
+
+extern void *memset(void *, int, __kernel_size_t);
+extern void *memcpy(void *, const void *, __kernel_size_t);
+extern void *memmove(void *, const void *, __kernel_size_t);
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_STRING_H */
diff --git a/arch/microblaze/include/asm/swab.h b/arch/microblaze/include/asm/swab.h
new file mode 100644
index 000000000000..b375d7b65ad7
--- /dev/null
+++ b/arch/microblaze/include/asm/swab.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_MICROBLAZE_SWAB_H
+#define _ASM_MICROBLAZE_SWAB_H
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#define __SWAB_64_THRU_32__
+#endif
+
+#endif /* _ASM_MICROBLAZE_SWAB_H */
diff --git a/arch/microblaze/include/asm/syscalls.h b/arch/microblaze/include/asm/syscalls.h
new file mode 100644
index 000000000000..9cb4ff0edeb2
--- /dev/null
+++ b/arch/microblaze/include/asm/syscalls.h
@@ -0,0 +1,45 @@
+#ifndef __ASM_MICROBLAZE_SYSCALLS_H
+#define __ASM_MICROBLAZE_SYSCALLS_H
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+#include <linux/signal.h>
+
+/* FIXME will be removed */
+asmlinkage int sys_ipc(uint call, int first, int second,
+                                int third, void *ptr, long fifth);
+
+struct pt_regs;
+asmlinkage int sys_vfork(struct pt_regs *regs);
+asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs);
+asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
+                        char __user *__user *envp, struct pt_regs *regs);
+
+asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,
+                        unsigned long prot, unsigned long flags,
+                        unsigned long fd, unsigned long pgoff);
+
+asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
+                        unsigned long prot, unsigned long flags,
+                        unsigned long fd, off_t offset);
+
+/* from signal.c */
+asmlinkage int sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs);
+
+asmlinkage int sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
+                struct pt_regs *regs);
+
+asmlinkage int sys_sigaction(int sig, const struct old_sigaction *act,
+                struct old_sigaction *oact);
+
+asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+                struct pt_regs *regs);
+
+asmlinkage int sys_sigreturn(struct pt_regs *regs);
+
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_MICROBLAZE_SYSCALLS_H */
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
new file mode 100644
index 000000000000..c4e308850b5d
--- /dev/null
+++ b/arch/microblaze/include/asm/system.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_SYSTEM_H
+#define _ASM_MICROBLAZE_SYSTEM_H
+
+#include <asm/registers.h>
+#include <asm/setup.h>
+#include <asm/irqflags.h>
+
+struct task_struct;
+struct thread_info;
+
+extern struct task_struct *_switch_to(struct thread_info *prev,
+                                        struct thread_info *next);
+
+#define switch_to(prev, next, last)                                     \
+        do {                                                            \
+                (last) = _switch_to(task_thread_info(prev),             \
+                                        task_thread_info(next));        \
+        } while (0)
+
+#define smp_read_barrier_depends()      do {} while (0)
+#define read_barrier_depends()          do {} while (0)
+
+#define nop()                   asm volatile ("nop")
+#define mb()                    barrier()
+#define rmb()                   mb()
+#define wmb()                   mb()
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+#define set_wmb(var, value)     do { var = value; wmb(); } while (0)
+
+#define smp_mb()                mb()
+#define smp_rmb()               rmb()
+#define smp_wmb()               wmb()
+
+void show_trace(struct task_struct *task, unsigned long *stack);
+void __bad_xchg(volatile void *ptr, int size);
+
+static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
+                                                                int size)
+{
+        unsigned long ret;
+        unsigned long flags;
+
+        switch (size) {
+        case 1:
+                local_irq_save(flags);
+                ret = *(volatile unsigned char *)ptr;
+                *(volatile unsigned char *)ptr = x;
+                local_irq_restore(flags);
+                break;
+
+        case 4:
+                local_irq_save(flags);
+                ret = *(volatile unsigned long *)ptr;
+                *(volatile unsigned long *)ptr = x;
+                local_irq_restore(flags);
+                break;
+        default:
+                __bad_xchg(ptr, size), ret = 0;
+                break;
+        }
+
+        return ret;
+}
+
+void disable_hlt(void);
+void enable_hlt(void);
+void default_idle(void);
+
+#define xchg(ptr, x) \
+        ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
+
+void free_init_pages(char *what, unsigned long begin, unsigned long end);
+void free_initmem(void);
+extern char *klimit;
+extern void ret_from_fork(void);
+
+#ifdef CONFIG_DEBUG_FS
+extern struct dentry *of_debugfs_root;
+#endif
+
+#define arch_align_stack(x) (x)
+
+#endif /* _ASM_MICROBLAZE_SYSTEM_H */
diff --git a/arch/microblaze/include/asm/termbits.h b/arch/microblaze/include/asm/termbits.h
new file mode 100644
index 000000000000..a1b64bc4724a
--- /dev/null
+++ b/arch/microblaze/include/asm/termbits.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_TERMBITS_H
+#define _ASM_MICROBLAZE_TERMBITS_H
+
+#include <linux/posix_types.h>
+
+typedef unsigned char   cc_t;
+typedef unsigned int    speed_t;
+typedef unsigned int    tcflag_t;
+
+#define NCCS 19
+struct termios {
+        tcflag_t c_iflag; /* input mode flags */
+        tcflag_t c_oflag; /* output mode flags */
+        tcflag_t c_cflag; /* control mode flags */
+        tcflag_t c_lflag; /* local mode flags */
+        cc_t c_line; /* line discipline */
+        cc_t c_cc[NCCS]; /* control characters */
+};
+
+struct ktermios {
+        tcflag_t c_iflag; /* input mode flags */
+        tcflag_t c_oflag; /* output mode flags */
+        tcflag_t c_cflag; /* control mode flags */
+        tcflag_t c_lflag; /* local mode flags */
+        cc_t c_line; /* line discipline */
+        cc_t c_cc[NCCS]; /* control characters */
+        speed_t c_ispeed; /* input speed */
+        speed_t c_ospeed; /* output speed */
+};
+
+/* c_cc characters */
+
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+
+#define IGNBRK  0000001
+#define BRKINT  0000002
+#define IGNPAR  0000004
+#define PARMRK  0000010
+#define INPCK   0000020
+#define ISTRIP  0000040
+#define INLCR   0000100
+#define IGNCR   0000200
+#define ICRNL   0000400
+#define IUCLC   0001000
+#define IXON    0002000
+#define IXANY   0004000
+#define IXOFF   0010000
+#define IMAXBEL 0020000
+#define IUTF8   0040000
+
+/* c_oflag bits */
+
+#define OPOST   0000001
+#define OLCUC   0000002
+#define ONLCR   0000004
+#define OCRNL   0000010
+#define ONOCR   0000020
+#define ONLRET  0000040
+#define OFILL   0000100
+#define OFDEL   0000200
+#define NLDLY   0000400
+#define NL0     0000000
+#define NL1     0000400
+#define CRDLY   0003000
+#define CR0     0000000
+#define CR1     0001000
+#define CR2     0002000
+#define CR3     0003000
+#define TABDLY  0014000
+#define TAB0    0000000
+#define TAB1    0004000
+#define TAB2    0010000
+#define TAB3    0014000
+#define XTABS   0014000
+#define BSDLY   0020000
+#define BS0     0000000
+#define BS1     0020000
+#define VTDLY   0040000
+#define VT0     0000000
+#define VT1     0040000
+#define FFDLY   0100000
+#define FF0     0000000
+#define FF1     0100000
+
+/* c_cflag bit meaning */
+
+#define CBAUD   0010017
+#define B0      0000000 /* hang up */
+#define B50     0000001
+#define B75     0000002
+#define B110    0000003
+#define B134    0000004
+#define B150    0000005
+#define B200    0000006
+#define B300    0000007
+#define B600    0000010
+#define B1200   0000011
+#define B1800   0000012
+#define B2400   0000013
+#define B4800   0000014
+#define B9600   0000015
+#define B19200  0000016
+#define B38400  0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE   0000060
+#define CS5     0000000
+#define CS6     0000020
+#define CS7     0000040
+#define CS8     0000060
+#define CSTOPB  0000100
+#define CREAD   0000200
+#define PARENB  0000400
+#define PARODD  0001000
+#define HUPCL   0002000
+#define CLOCAL  0004000
+#define CBAUDEX 0010000
+#define B57600  0010001
+#define B115200 0010002
+#define B230400 0010003
+#define B460800 0010004
+#define B500000 0010005
+#define B576000 0010006
+#define B921600 0010007
+#define BOTHER          0010000
+#define B1000000        0010010
+#define B1152000        0010011
+#define B1500000        0010012
+#define B2000000        0010013
+#define B2500000        0010014
+#define B3000000        0010015
+#define B3500000        0010016
+#define B4000000        0010017
+#define CIBAUD          002003600000 /* input baud rate (not used) */
+#define CMSPAR          010000000000 /* mark or space (stick) parity */
+#define CRTSCTS         020000000000 /* flow control */
+
+#define IBSHIFT 16              /* Shift from CBAUD to CIBAUD */
+
+/* c_lflag bits */
+
+#define ISIG    0000001
+#define ICANON  0000002
+#define XCASE   0000004
+#define ECHO    0000010
+#define ECHOE   0000020
+#define ECHOK   0000040
+#define ECHONL  0000100
+#define NOFLSH  0000200
+#define TOSTOP  0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE  0004000
+#define FLUSHO  0010000
+#define PENDIN  0040000
+#define IEXTEN  0100000
+
+/* tcflow() and TCXONC use these */
+
+#define TCOOFF          0
+#define TCOON           1
+#define TCIOFF          2
+#define TCION           3
+
+/* tcflush() and TCFLSH use these */
+
+#define TCIFLUSH        0
+#define TCOFLUSH        1
+#define TCIOFLUSH       2
+
+/* tcsetattr uses these */
+
+#define TCSANOW         0
+#define TCSADRAIN       1
+#define TCSAFLUSH       2
+
+#endif /* _ASM_MICROBLAZE_TERMBITS_H */
diff --git a/arch/microblaze/include/asm/termios.h b/arch/microblaze/include/asm/termios.h
new file mode 100644
index 000000000000..102d77258668
--- /dev/null
+++ b/arch/microblaze/include/asm/termios.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_TERMIOS_H
+#define _ASM_MICROBLAZE_TERMIOS_H
+
+#include <linux/string.h>
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+        unsigned short ws_row;
+        unsigned short ws_col;
+        unsigned short ws_xpixel;
+        unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+        unsigned short c_iflag; /* input mode flags */
+        unsigned short c_oflag; /* output mode flags */
+        unsigned short c_cflag; /* control mode flags */
+        unsigned short c_lflag; /* local mode flags */
+        unsigned char c_line; /* line discipline */
+        unsigned char c_cc[NCC]; /* control characters */
+};
+
+#ifdef __KERNEL__
+/*      intr=^C         quit=^|         erase=del       kill=^U
+        eof=^D          vtime=\0        vmin=\1         sxtc=\0
+        start=^Q        stop=^S         susp=^Z         eol=\0
+        reprint=^R      discard=^U      werase=^W       lnext=^V
+        eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#endif
+
+/* Modem lines */
+
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+/* Line disciplines */
+
+#define N_TTY           0
+#define N_SLIP          1
+#define N_MOUSE         2
+#define N_PPP           3
+#define N_STRIP         4
+#define N_AX25          5
+#define N_X25           6 /* X.25 async */
+#define N_6PACK         7
+#define N_MASC          8 /* Reserved for Mobitex module <kaz@cafe.net> */
+#define N_R3964         9 /* Reserved for Simatic R3964 module */
+#define N_PROFIBUS_FDL  10 /* Reserved for Profibus <Dave@mvhi.com> */
+#define N_IRDA          11 /* Linux IR - http://irda.sourceforge.net/ */
+#define N_SMSBLOCK      12 /* SMS block mode - for talking to GSM data cards
+                                about SMS messages */
+#define N_HDLC          13 /* synchronous HDLC */
+#define N_SYNC_PPP      14
+#define N_HCI           15 /* Bluetooth HCI UART */
+
+#ifdef __KERNEL__
+
+#include <asm-generic/termios.h>
+
+#endif  /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_TERMIOS_H */
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
new file mode 100644
index 000000000000..4c3943e3f403
--- /dev/null
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_THREAD_INFO_H
+#define _ASM_MICROBLAZE_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+/* we have 8k stack */
+#define THREAD_SHIFT            13
+#define THREAD_SIZE             (1 << THREAD_SHIFT)
+#define THREAD_SIZE_ORDER       1
+
+#ifndef __ASSEMBLY__
+# include <linux/types.h>
+# include <asm/processor.h>
+# include <asm/segment.h>
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants
+ *       must also be changed
+ */
+
+struct cpu_context {
+        __u32   r1; /* stack pointer */
+        __u32   r2;
+        /* dedicated registers */
+        __u32   r13;
+        __u32   r14;
+        __u32   r15;
+        __u32   r16;
+        __u32   r17;
+        __u32   r18;
+        /* non-volatile registers */
+        __u32   r19;
+        __u32   r20;
+        __u32   r21;
+        __u32   r22;
+        __u32   r23;
+        __u32   r24;
+        __u32   r25;
+        __u32   r26;
+        __u32   r27;
+        __u32   r28;
+        __u32   r29;
+        __u32   r30;
+        /* r31 is used as current task pointer */
+        /* special purpose registers */
+        __u32   msr;
+        __u32   ear;
+        __u32   esr;
+        __u32   fsr;
+};
+
+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           status; /* thread-synchronous flags */
+        __u32                   cpu; /* current CPU */
+        __s32                   preempt_count; /* 0 => preemptable,< 0 => BUG*/
+        mm_segment_t            addr_limit; /* thread address space */
+        struct restart_block    restart_block;
+
+        struct cpu_context      cpu_context;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ *
+ * preempt_count needs to be 1 initially, until the scheduler is functional.
+ */
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        .task           = &tsk,                 \
+        .exec_domain    = &default_exec_domain, \
+        .flags          = 0,                    \
+        .cpu            = 0,                    \
+        .preempt_count  = 1,                    \
+        .addr_limit     = KERNEL_DS,            \
+        .restart_block = {                      \
+                .fn = do_no_restart_syscall,    \
+        },                                      \
+}
+
+#define init_thread_info        (init_thread_union.thread_info)
+#define init_stack              (init_thread_union.stack)
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+        register unsigned long sp asm("r1");
+
+        return (struct thread_info *)(sp & ~(THREAD_SIZE-1));
+}
+
+/* thread information allocation */
+#endif /* __ASSEMBLY__ */
+
+#define PREEMPT_ACTIVE          0x10000000
+
+/*
+ * thread information flags
+ * - these are process state flags that various assembly files may
+ *   need to access
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#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 */
+/* restore singlestep on return to user mode */
+#define TIF_SINGLESTEP          4
+#define TIF_IRET                5 /* return with iret */
+#define TIF_MEMDIE              6
+#define TIF_FREEZE              14      /* Freezing for suspend */
+
+/* FIXME change in entry.S */
+#define TIF_KERNEL_TRACE        8       /* kernel trace active */
+
+/* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_POLLING_NRFLAG      16
+
+#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_SINGLESTEP         (1<<TIF_SINGLESTEP)
+#define _TIF_IRET               (1<<TIF_IRET)
+#define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE             (1<<TIF_FREEZE)
+#define _TIF_KERNEL_TRACE       (1 << TIF_KERNEL_TRACE)
+
+/* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK          0x0000FFFE
+/* work to do on any return to u-space */
+#define _TIF_ALLWORK_MASK       0x0000FFFF
+
+/*
+ * Thread-synchronous status.
+ *
+ * This is different from the flags in that nobody else
+ * ever touches our thread-synchronous status, so we don't
+ * have to worry about atomic accesses.
+ */
+/* FPU was used by this task this quantum (SMP) */
+#define TS_USEDFPU              0x0001
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_THREAD_INFO_H */
diff --git a/arch/microblaze/include/asm/timex.h b/arch/microblaze/include/asm/timex.h
new file mode 100644
index 000000000000..678525dc6d0b
--- /dev/null
+++ b/arch/microblaze/include/asm/timex.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_TIMEX_H
+#define _ASM_MICROBLAZE_TIMEX_H
+
+#define CLOCK_TICK_RATE 1000 /* Timer input freq. */
+
+typedef unsigned long cycles_t;
+
+#define get_cycles()    (0)
+
+#endif /* _ASM_TIMEX_H */
diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
new file mode 100644
index 000000000000..d1dfe3791127
--- /dev/null
+++ b/arch/microblaze/include/asm/tlb.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_TLB_H
+#define _ASM_MICROBLAZE_TLB_H
+
+#define tlb_flush(tlb)  do {} while (0)
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_MICROBLAZE_TLB_H */
diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h
new file mode 100644
index 000000000000..d7fe7629001b
--- /dev/null
+++ b/arch/microblaze/include/asm/tlbflush.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
+#define _ASM_MICROBLAZE_TLBFLUSH_H
+
+#define flush_tlb()                             BUG()
+#define flush_tlb_all()                         BUG()
+#define flush_tlb_mm(mm)                        BUG()
+#define flush_tlb_page(vma, addr)               BUG()
+#define flush_tlb_range(mm, start, end)         BUG()
+#define flush_tlb_pgtables(mm, start, end)      BUG()
+#define flush_tlb_kernel_range(start, end)      BUG()
+
+#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
diff --git a/arch/microblaze/include/asm/topology.h b/arch/microblaze/include/asm/topology.h
new file mode 100644
index 000000000000..96bcea5a9920
--- /dev/null
+++ b/arch/microblaze/include/asm/topology.h
@@ -0,0 +1,11 @@
+#include <asm-generic/topology.h>
+
+#ifndef _ASM_MICROBLAZE_TOPOLOGY_H
+#define _ASM_MICROBLAZE_TOPOLOGY_H
+
+struct device_node;
+static inline int of_node_to_nid(struct device_node *device)
+{
+        return 0;
+}
+#endif /* _ASM_MICROBLAZE_TOPOLOGY_H */
diff --git a/arch/microblaze/include/asm/types.h b/arch/microblaze/include/asm/types.h
new file mode 100644
index 000000000000..bebc018318f5
--- /dev/null
+++ b/arch/microblaze/include/asm/types.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_TYPES_H
+#define _ASM_MICROBLAZE_TYPES_H
+
+/*
+ * This file is never included by application software unless
+ * explicitly requested (e.g., via linux/types.h) in which case the
+ * application is Linux specific so (user-) name space pollution is
+ * not a major issue.  However, for interoperability, libraries still
+ * need to be careful to avoid a name clashes.
+ */
+
+#include <asm-generic/int-ll64.h>
+
+# ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#  ifdef __KERNEL__
+#  define BITS_PER_LONG 32
+
+/* Dma addresses are 32-bits wide. */
+
+typedef u32 dma_addr_t;
+
+#  endif/* __KERNEL__ */
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_TYPES_H */
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
new file mode 100644
index 000000000000..5a3ffc308e12
--- /dev/null
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_UACCESS_H
+#define _ASM_MICROBLAZE_UACCESS_H
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sched.h> /* RLIMIT_FSIZE */
+#include <linux/mm.h>
+
+#include <asm/mmu.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/segment.h>
+#include <linux/string.h>
+
+#define VERIFY_READ     0
+#define VERIFY_WRITE    1
+
+extern int ___range_ok(unsigned long addr, unsigned long size);
+
+#define __range_ok(addr, size) \
+                ___range_ok((unsigned long)(addr), (unsigned long)(size))
+
+#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
+#define __access_ok(add, size) (__range_ok((addr), (size)) == 0)
+
+extern inline int bad_user_access_length(void)
+{
+        return 0;
+}
+/* FIXME this is function for optimalization -> memcpy */
+#define __get_user(var, ptr)                                    \
+        ({                                                      \
+                int __gu_err = 0;                               \
+                switch (sizeof(*(ptr))) {                       \
+                case 1:                                         \
+                case 2:                                         \
+                case 4:                                         \
+                        (var) = *(ptr);                         \
+                        break;                                  \
+                case 8:                                         \
+                        memcpy((void *) &(var), (ptr), 8);      \
+                        break;                                  \
+                default:                                        \
+                        (var) = 0;                              \
+                        __gu_err = __get_user_bad();            \
+                        break;                                  \
+                }                                               \
+                __gu_err;                                       \
+        })
+
+#define __get_user_bad()        (bad_user_access_length(), (-EFAULT))
+
+#define __put_user(var, ptr)                                    \
+        ({                                                      \
+                int __pu_err = 0;                               \
+                switch (sizeof(*(ptr))) {                       \
+                case 1:                                         \
+                case 2:                                         \
+                case 4:                                         \
+                        *(ptr) = (var);                         \
+                        break;                                  \
+                case 8: {                                       \
+                        typeof(*(ptr)) __pu_val = var;          \
+                        memcpy(ptr, &__pu_val, sizeof(__pu_val));\
+                        }                                       \
+                        break;                                  \
+                default:                                        \
+                        __pu_err = __put_user_bad();            \
+                        break;                                  \
+                }                                                       \
+                __pu_err;                                               \
+        })
+
+#define __put_user_bad()        (bad_user_access_length(), (-EFAULT))
+
+#define put_user(x, ptr)        __put_user(x, ptr)
+#define get_user(x, ptr)        __get_user(x, ptr)
+
+#define copy_to_user(to, from, n)               (memcpy(to, from, n), 0)
+#define copy_from_user(to, from, n)             (memcpy(to, from, n), 0)
+
+#define __copy_to_user(to, from, n)             (copy_to_user(to, from, n))
+#define __copy_from_user(to, from, n)           (copy_from_user(to, from, n))
+#define __copy_to_user_inatomic(to, from, n)    (__copy_to_user(to, from, n))
+#define __copy_from_user_inatomic(to, from, n)  (__copy_from_user(to, from, n))
+
+#define __clear_user(addr, n)   (memset((void *)addr, 0, n), 0)
+
+static inline unsigned long clear_user(void *addr, unsigned long size)
+{
+        if (access_ok(VERIFY_WRITE, addr, size))
+                size = __clear_user(addr, size);
+        return size;
+}
+
+/* Returns 0 if exception not found and fixup otherwise. */
+extern unsigned long search_exception_table(unsigned long);
+
+
+extern long strncpy_from_user(char *dst, const char __user *src, long count);
+extern long strnlen_user(const char __user *src, long count);
+extern long __strncpy_from_user(char *dst, const char __user *src, long count);
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue. No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+struct exception_table_entry {
+        unsigned long insn, fixup;
+};
+
+#endif  /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_UACCESS_H */
diff --git a/arch/microblaze/include/asm/ucontext.h b/arch/microblaze/include/asm/ucontext.h
new file mode 100644
index 000000000000..11f6bb3ae3a4
--- /dev/null
+++ b/arch/microblaze/include/asm/ucontext.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_UCONTEXT_H
+#define _ASM_MICROBLAZE_UCONTEXT_H
+
+#include <asm/sigcontext.h>
+
+struct ucontext {
+        unsigned long           uc_flags;
+        struct ucontext         *uc_link;
+        stack_t                 uc_stack;
+        struct sigcontext       uc_mcontext;
+        sigset_t                uc_sigmask; /* mask last for extensibility */
+};
+
+#endif /* _ASM_MICROBLAZE_UCONTEXT_H */
diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h
new file mode 100644
index 000000000000..9d66b640c910
--- /dev/null
+++ b/arch/microblaze/include/asm/unaligned.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_UNALIGNED_H
+#define _ASM_MICROBLAZE_UNALIGNED_H
+
+# ifdef __KERNEL__
+
+# include <linux/unaligned/access_ok.h>
+# include <linux/unaligned/generic.h>
+
+# define get_unaligned  __get_unaligned_be
+# define put_unaligned  __put_unaligned_be
+
+# endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_UNALIGNED_H */
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
new file mode 100644
index 000000000000..d9d3903fde3f
--- /dev/null
+++ b/arch/microblaze/include/asm/unistd.h
@@ -0,0 +1,421 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_MICROBLAZE_UNISTD_H
+#define _ASM_MICROBLAZE_UNISTD_H
+
+#define __NR_restart_syscall    0 /* ok */
+#define __NR_exit               1 /* ok */
+#define __NR_fork               2 /* not for no MMU - weird */
+#define __NR_read               3 /* ok */
+#define __NR_write              4 /* ok */
+#define __NR_open               5 /* openat */
+#define __NR_close              6 /* ok */
+#define __NR_waitpid            7 /* waitid */
+#define __NR_creat              8 /* openat */
+#define __NR_link               9 /* linkat */
+#define __NR_unlink             10 /* unlinkat */
+#define __NR_execve             11 /* ok */
+#define __NR_chdir              12 /* ok */
+#define __NR_time               13 /* obsolete -> sys_gettimeofday */
+#define __NR_mknod              14 /* mknodat */
+#define __NR_chmod              15 /* fchmodat */
+#define __NR_lchown             16 /* ok */
+#define __NR_break              17 /* don't know */
+#define __NR_oldstat            18 /* remove */
+#define __NR_lseek              19 /* ok */
+#define __NR_getpid             20 /* ok */
+#define __NR_mount              21 /* ok */
+#define __NR_umount             22 /* ok */  /* use only umount2 */
+#define __NR_setuid             23 /* ok */
+#define __NR_getuid             24 /* ok */
+#define __NR_stime              25 /* obsolete -> sys_settimeofday */
+#define __NR_ptrace             26 /* ok */
+#define __NR_alarm              27 /* obsolete -> sys_setitimer */
+#define __NR_oldfstat           28 /* remove */
+#define __NR_pause              29 /* obsolete -> sys_rt_sigtimedwait */
+#define __NR_utime              30 /* obsolete -> sys_utimesat */
+#define __NR_stty               31 /* remove */
+#define __NR_gtty               32 /* remove */
+#define __NR_access             33 /* faccessat */
+/* can be implemented by sys_setpriority */
+#define __NR_nice               34
+#define __NR_ftime              35 /* remove */
+#define __NR_sync               36 /* ok */
+#define __NR_kill               37 /* ok */
+#define __NR_rename             38 /* renameat */
+#define __NR_mkdir              39 /* mkdirat */
+#define __NR_rmdir              40 /* unlinkat */
+#define __NR_dup                41 /* ok */
+#define __NR_pipe               42 /* ok */
+#define __NR_times              43 /* ok */
+#define __NR_prof               44 /* remove */
+#define __NR_brk                45 /* ok -mmu, nommu specific */
+#define __NR_setgid             46 /* ok */
+#define __NR_getgid             47 /* ok */
+#define __NR_signal             48 /* obsolete -> sys_rt_sigaction */
+#define __NR_geteuid            49 /* ok */
+#define __NR_getegid            50 /* ok */
+#define __NR_acct               51 /* add it and then I can disable it */
+#define __NR_umount2            52 /* remove */
+#define __NR_lock               53 /* remove */
+#define __NR_ioctl              54 /* ok */
+#define __NR_fcntl              55 /* ok -> 64bit version*/
+#define __NR_mpx                56 /* remove */
+#define __NR_setpgid            57 /* ok */
+#define __NR_ulimit             58 /* remove */
+#define __NR_oldolduname        59 /* remove */
+#define __NR_umask              60 /* ok */
+#define __NR_chroot             61 /* ok */
+#define __NR_ustat              62 /* obsolete -> statfs64 */
+#define __NR_dup2               63 /* ok */
+#define __NR_getppid            64 /* ok */
+#define __NR_getpgrp            65 /* obsolete -> sys_getpgid */
+#define __NR_setsid             66 /* ok */
+#define __NR_sigaction          67 /* obsolete -> rt_sigaction */
+#define __NR_sgetmask           68 /* obsolete -> sys_rt_sigprocmask */
+#define __NR_ssetmask           69 /* obsolete ->sys_rt_sigprocmask */
+#define __NR_setreuid           70 /* ok */
+#define __NR_setregid           71 /* ok */
+#define __NR_sigsuspend         72 /* obsolete -> rt_sigsuspend */
+#define __NR_sigpending         73 /* obsolete -> sys_rt_sigpending */
+#define __NR_sethostname        74 /* ok */
+#define __NR_setrlimit          75 /* ok */
+#define __NR_getrlimit          76 /* ok Back compatible 2G limited rlimit */
+#define __NR_getrusage          77 /* ok */
+#define __NR_gettimeofday       78 /* ok */
+#define __NR_settimeofday       79 /* ok */
+#define __NR_getgroups          80 /* ok */
+#define __NR_setgroups          81 /* ok */
+#define __NR_select             82 /* obsolete -> sys_pselect7 */
+#define __NR_symlink            83 /* symlinkat */
+#define __NR_oldlstat           84 /* remove */
+#define __NR_readlink           85 /* obsolete -> sys_readlinkat */
+#define __NR_uselib             86 /* remove */
+#define __NR_swapon             87 /* ok */
+#define __NR_reboot             88 /* ok */
+#define __NR_readdir            89 /* remove ? */
+#define __NR_mmap               90 /* obsolete -> sys_mmap2 */
+#define __NR_munmap             91 /* ok - mmu and nommu */
+#define __NR_truncate           92 /* ok or truncate64 */
+#define __NR_ftruncate          93 /* ok or ftruncate64 */
+#define __NR_fchmod             94 /* ok */
+#define __NR_fchown             95 /* ok */
+#define __NR_getpriority        96 /* ok */
+#define __NR_setpriority        97 /* ok */
+#define __NR_profil             98 /* remove */
+#define __NR_statfs             99 /* ok or statfs64 */
+#define __NR_fstatfs            100  /* ok or fstatfs64 */
+#define __NR_ioperm             101 /* remove */
+#define __NR_socketcall         102 /* remove */
+#define __NR_syslog             103 /* ok */
+#define __NR_setitimer          104 /* ok */
+#define __NR_getitimer          105 /* ok */
+#define __NR_stat               106 /* remove */
+#define __NR_lstat              107 /* remove */
+#define __NR_fstat              108 /* remove */
+#define __NR_olduname           109 /* remove */
+#define __NR_iopl               110 /* remove */
+#define __NR_vhangup            111 /* ok */
+#define __NR_idle               112 /* remove */
+#define __NR_vm86old            113 /* remove */
+#define __NR_wait4              114 /* obsolete -> waitid */
+#define __NR_swapoff            115 /* ok */
+#define __NR_sysinfo            116 /* ok */
+#define __NR_ipc                117 /* remove - direct call */
+#define __NR_fsync              118 /* ok */
+#define __NR_sigreturn          119 /* obsolete -> sys_rt_sigreturn */
+#define __NR_clone              120 /* ok */
+#define __NR_setdomainname      121 /* ok */
+#define __NR_uname              122 /* remove */
+#define __NR_modify_ldt         123 /* remove */
+#define __NR_adjtimex           124 /* ok */
+#define __NR_mprotect           125 /* remove */
+#define __NR_sigprocmask        126 /* obsolete -> sys_rt_sigprocmask */
+#define __NR_create_module      127 /* remove */
+#define __NR_init_module        128 /* ok */
+#define __NR_delete_module      129 /* ok */
+#define __NR_get_kernel_syms    130 /* remove */
+#define __NR_quotactl           131 /* ok */
+#define __NR_getpgid            132 /* ok */
+#define __NR_fchdir             133 /* ok */
+#define __NR_bdflush            134 /* remove */
+#define __NR_sysfs              135 /* needed for busybox */
+#define __NR_personality        136 /* ok */
+#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
+#define __NR_setfsuid           138 /* ok */
+#define __NR_setfsgid           139 /* ok */
+#define __NR__llseek            140 /* remove only lseek */
+#define __NR_getdents           141 /* ok or getdents64 */
+#define __NR__newselect         142 /* remove */
+#define __NR_flock              143 /* ok */
+#define __NR_msync              144 /* remove */
+#define __NR_readv              145 /* ok */
+#define __NR_writev             146 /* ok */
+#define __NR_getsid             147 /* ok */
+#define __NR_fdatasync          148 /* ok */
+#define __NR__sysctl            149 /* remove */
+#define __NR_mlock              150 /* ok - nommu or mmu */
+#define __NR_munlock            151 /* ok - nommu or mmu */
+#define __NR_mlockall           152 /* ok - nommu or mmu */
+#define __NR_munlockall         153 /* ok - nommu or mmu */
+#define __NR_sched_setparam             154 /* ok */
+#define __NR_sched_getparam             155 /* ok */
+#define __NR_sched_setscheduler         156 /* ok */
+#define __NR_sched_getscheduler         157 /* ok */
+#define __NR_sched_yield                158 /* ok */
+#define __NR_sched_get_priority_max     159 /* ok */
+#define __NR_sched_get_priority_min     160 /* ok */
+#define __NR_sched_rr_get_interval      161 /* ok */
+#define __NR_nanosleep          162 /* ok */
+#define __NR_mremap             163 /* ok - nommu or mmu */
+#define __NR_setresuid          164 /* ok */
+#define __NR_getresuid          165 /* ok */
+#define __NR_vm86               166 /* remove */
+#define __NR_query_module       167 /* ok */
+#define __NR_poll               168 /* obsolete -> sys_ppoll */
+#define __NR_nfsservctl         169 /* ok */
+#define __NR_setresgid          170 /* ok */
+#define __NR_getresgid          171 /* ok */
+#define __NR_prctl              172 /* ok */
+#define __NR_rt_sigreturn       173 /* ok */
+#define __NR_rt_sigaction       174 /* ok */
+#define __NR_rt_sigprocmask     175 /* ok */
+#define __NR_rt_sigpending      176 /* ok */
+#define __NR_rt_sigtimedwait    177 /* ok */
+#define __NR_rt_sigqueueinfo    178 /* ok */
+#define __NR_rt_sigsuspend      179 /* ok */
+#define __NR_pread64            180 /* ok */
+#define __NR_pwrite64           181 /* ok */
+#define __NR_chown              182 /* obsolete -> fchownat */
+#define __NR_getcwd             183 /* ok */
+#define __NR_capget             184 /* ok */
+#define __NR_capset             185 /* ok */
+#define __NR_sigaltstack        186 /* remove */
+#define __NR_sendfile           187 /* ok -> exist 64bit version*/
+#define __NR_getpmsg            188 /* remove */
+/* remove - some people actually want streams */
+#define __NR_putpmsg            189
+/* for noMMU - group with clone -> maybe remove */
+#define __NR_vfork              190
+#define __NR_ugetrlimit         191 /* remove - SuS compliant getrlimit */
+#define __NR_mmap2              192 /* ok */
+#define __NR_truncate64         193 /* ok */
+#define __NR_ftruncate64        194 /* ok */
+#define __NR_stat64             195 /* remove _ARCH_WANT_STAT64 */
+#define __NR_lstat64            196 /* remove _ARCH_WANT_STAT64 */
+#define __NR_fstat64            197 /* remove _ARCH_WANT_STAT64 */
+#define __NR_lchown32           198 /* ok - without 32 */
+#define __NR_getuid32           199 /* ok - without 32 */
+#define __NR_getgid32           200 /* ok - without 32 */
+#define __NR_geteuid32          201 /* ok - without 32 */
+#define __NR_getegid32          202 /* ok - without 32 */
+#define __NR_setreuid32         203 /* ok - without 32 */
+#define __NR_setregid32         204 /* ok - without 32 */
+#define __NR_getgroups32        205 /* ok - without 32 */
+#define __NR_setgroups32        206 /* ok - without 32 */
+#define __NR_fchown32           207 /* ok - without 32 */
+#define __NR_setresuid32        208 /* ok - without 32 */
+#define __NR_getresuid32        209 /* ok - without 32 */
+#define __NR_setresgid32        210 /* ok - without 32 */
+#define __NR_getresgid32        211 /* ok - without 32 */
+#define __NR_chown32            212 /* ok - without 32 -obsolete -> fchownat */
+#define __NR_setuid32           213 /* ok - without 32 */
+#define __NR_setgid32           214 /* ok - without 32 */
+#define __NR_setfsuid32         215 /* ok - without 32 */
+#define __NR_setfsgid32         216 /* ok - without 32 */
+#define __NR_pivot_root         217 /* ok */
+#define __NR_mincore            218 /* ok */
+#define __NR_madvise            219 /* ok */
+#define __NR_getdents64         220 /* ok */
+#define __NR_fcntl64            221 /* ok */
+/* 223 is unused */
+#define __NR_gettid             224 /* ok */
+#define __NR_readahead          225 /* ok */
+#define __NR_setxattr           226 /* ok */
+#define __NR_lsetxattr          227 /* ok */
+#define __NR_fsetxattr          228 /* ok */
+#define __NR_getxattr           229 /* ok */
+#define __NR_lgetxattr          230 /* ok */
+#define __NR_fgetxattr          231 /* ok */
+#define __NR_listxattr          232 /* ok */
+#define __NR_llistxattr         233 /* ok */
+#define __NR_flistxattr         234 /* ok */
+#define __NR_removexattr        235 /* ok */
+#define __NR_lremovexattr       236 /* ok */
+#define __NR_fremovexattr       237 /* ok */
+#define __NR_tkill              238 /* ok */
+#define __NR_sendfile64         239 /* ok */
+#define __NR_futex              240 /* ok */
+#define __NR_sched_setaffinity  241 /* ok */
+#define __NR_sched_getaffinity  242 /* ok */
+#define __NR_set_thread_area    243 /* remove */
+#define __NR_get_thread_area    244 /* remove */
+#define __NR_io_setup           245 /* ok */
+#define __NR_io_destroy         246 /* ok */
+#define __NR_io_getevents       247 /* ok */
+#define __NR_io_submit          248 /* ok */
+#define __NR_io_cancel          249 /* ok */
+#define __NR_fadvise64          250 /* remove -> sys_fadvise64_64 */
+/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
+#define __NR_exit_group         252 /* ok */
+#define __NR_lookup_dcookie     253 /* ok */
+#define __NR_epoll_create       254 /* ok */
+#define __NR_epoll_ctl          255 /* ok */
+#define __NR_epoll_wait         256 /* obsolete -> sys_epoll_pwait */
+#define __NR_remap_file_pages   257 /* only for mmu */
+#define __NR_set_tid_address    258 /* ok */
+#define __NR_timer_create       259 /* ok */
+#define __NR_timer_settime      (__NR_timer_create+1) /* 260 */ /* ok */
+#define __NR_timer_gettime      (__NR_timer_create+2) /* 261 */ /* ok */
+#define __NR_timer_getoverrun   (__NR_timer_create+3) /* 262 */ /* ok */
+#define __NR_timer_delete       (__NR_timer_create+4) /* 263 */ /* ok */
+#define __NR_clock_settime      (__NR_timer_create+5) /* 264 */ /* ok */
+#define __NR_clock_gettime      (__NR_timer_create+6) /* 265 */ /* ok */
+#define __NR_clock_getres       (__NR_timer_create+7) /* 266 */ /* ok */
+#define __NR_clock_nanosleep    (__NR_timer_create+8) /* 267 */ /* ok */
+#define __NR_statfs64           268 /* ok */
+#define __NR_fstatfs64          269 /* ok */
+#define __NR_tgkill             270 /* ok */
+#define __NR_utimes             271 /* obsolete -> sys_futimesat */
+#define __NR_fadvise64_64       272 /* ok */
+#define __NR_vserver            273 /* ok */
+#define __NR_mbind              274 /* only for mmu */
+#define __NR_get_mempolicy      275 /* only for mmu */
+#define __NR_set_mempolicy      276 /* only for mmu */
+#define __NR_mq_open            277 /* ok */
+#define __NR_mq_unlink          (__NR_mq_open+1) /* 278 */ /* ok */
+#define __NR_mq_timedsend       (__NR_mq_open+2) /* 279 */ /* ok */
+#define __NR_mq_timedreceive    (__NR_mq_open+3) /* 280 */ /* ok */
+#define __NR_mq_notify          (__NR_mq_open+4) /* 281 */ /* ok */
+#define __NR_mq_getsetattr      (__NR_mq_open+5) /* 282 */ /* ok */
+#define __NR_kexec_load         283 /* ok */
+#define __NR_waitid             284 /* ok */
+/* #define __NR_sys_setaltroot  285 */
+#define __NR_add_key            286 /* ok */
+#define __NR_request_key        287 /* ok */
+#define __NR_keyctl             288 /* ok */
+#define __NR_ioprio_set         289 /* ok */
+#define __NR_ioprio_get         290 /* ok */
+#define __NR_inotify_init       291 /* ok */
+#define __NR_inotify_add_watch  292 /* ok */
+#define __NR_inotify_rm_watch   293 /* ok */
+#define __NR_migrate_pages      294 /* mmu */
+#define __NR_openat             295 /* ok */
+#define __NR_mkdirat            296 /* ok */
+#define __NR_mknodat            297 /* ok */
+#define __NR_fchownat           298 /* ok */
+#define __NR_futimesat          299 /* obsolete -> sys_utimesat */
+#define __NR_fstatat64          300 /* stat64 */
+#define __NR_unlinkat           301 /* ok */
+#define __NR_renameat           302 /* ok */
+#define __NR_linkat             303 /* ok */
+#define __NR_symlinkat          304 /* ok */
+#define __NR_readlinkat         305 /* ok */
+#define __NR_fchmodat           306 /* ok */
+#define __NR_faccessat          307 /* ok */
+#define __NR_pselect6           308 /* obsolete -> sys_pselect7 */
+#define __NR_ppoll              309 /* ok */
+#define __NR_unshare            310 /* ok */
+#define __NR_set_robust_list    311 /* ok */
+#define __NR_get_robust_list    312 /* ok */
+#define __NR_splice             313 /* ok */
+#define __NR_sync_file_range    314 /* ok */
+#define __NR_tee                315 /* ok */
+#define __NR_vmsplice           316 /* ok */
+#define __NR_move_pages         317 /* mmu */
+#define __NR_getcpu             318 /* ok */
+#define __NR_epoll_pwait        319 /* ok */
+#define __NR_utimensat          320 /* ok */
+#define __NR_signalfd           321 /* ok */
+#define __NR_timerfd_create     322 /* ok */
+#define __NR_eventfd            323 /* ok */
+#define __NR_fallocate          324 /* ok */
+#define __NR_semtimedop         325 /* ok - semaphore group */
+#define __NR_timerfd_settime    326 /* ok */
+#define __NR_timerfd_gettime    327 /* ok */
+/* sysv ipc syscalls */
+#define __NR_semctl             328 /* ok */
+#define __NR_semget             329 /* ok */
+#define __NR_semop              330 /* ok */
+#define __NR_msgctl             331 /* ok */
+#define __NR_msgget             332 /* ok */
+#define __NR_msgrcv             333 /* ok */
+#define __NR_msgsnd             334 /* ok */
+#define __NR_shmat              335 /* ok */
+#define __NR_shmctl             336 /* ok */
+#define __NR_shmdt              337 /* ok */
+#define __NR_shmget             338 /* ok */
+
+
+#define __NR_signalfd4          339 /* new */
+#define __NR_eventfd2           340 /* new */
+#define __NR_epoll_create1      341 /* new */
+#define __NR_dup3               342 /* new */
+#define __NR_pipe2              343 /* new */
+#define __NR_inotify_init1      344 /* new */
+#define __NR_socket             345 /* new */
+#define __NR_socketpair         346 /* new */
+#define __NR_bind               347 /* new */
+#define __NR_listen             348 /* new */
+#define __NR_accept             349 /* new */
+#define __NR_connect            350 /* new */
+#define __NR_getsockname        351 /* new */
+#define __NR_getpeername        352 /* new */
+#define __NR_sendto             353 /* new */
+#define __NR_send               354 /* new */
+#define __NR_recvfrom           355 /* new */
+#define __NR_recv               356 /* new */
+#define __NR_setsockopt         357 /* new */
+#define __NR_getsockopt         358 /* new */
+#define __NR_shutdown           359 /* new */
+#define __NR_sendmsg            360 /* new */
+#define __NR_recvmsg            361 /* new */
+#define __NR_accept04           362 /* new */
+
+#define __NR_syscalls           363
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#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
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SGETMASK
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_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
+/* #define __ARCH_WANT_SYS_RT_SIGSUSPEND */
+
+/*
+ * "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 /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/microblaze/include/asm/user.h b/arch/microblaze/include/asm/user.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/arch/microblaze/include/asm/user.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/vga.h b/arch/microblaze/include/asm/vga.h
new file mode 100644
index 000000000000..8b137891791f
--- /dev/null
+++ b/arch/microblaze/include/asm/vga.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/xor.h b/arch/microblaze/include/asm/xor.h
new file mode 100644
index 000000000000..c82eb12a5b18
--- /dev/null
+++ b/arch/microblaze/include/asm/xor.h
@@ -0,0 +1 @@
+#include <asm-generic/xor.h>
diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile
new file mode 100644
index 000000000000..da94bec4ecba
--- /dev/null
+++ b/arch/microblaze/kernel/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile
+#
+
+extra-y := head.o vmlinux.lds
+
+obj-y += exceptions.o \
+        hw_exception_handler.o init_task.o intc.o irq.o of_device.o \
+        of_platform.o process.o prom.o prom_parse.o ptrace.o \
+        setup.o signal.o sys_microblaze.o timer.o traps.o
+
+obj-y += cpu/
+
+obj-$(CONFIG_EARLY_PRINTK)      += early_printk.o
+obj-$(CONFIG_SELFMOD)           += selfmod.o
+obj-$(CONFIG_HEART_BEAT)        += heartbeat.o
+obj-$(CONFIG_MODULES)           += microblaze_ksyms.o module.o
+
+obj-y   += entry$(MMUEXT).o
diff --git a/arch/microblaze/kernel/asm-offsets.c b/arch/microblaze/kernel/asm-offsets.c
new file mode 100644
index 000000000000..38e1a2e8ad0c
--- /dev/null
+++ b/arch/microblaze/kernel/asm-offsets.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/ptrace.h>
+#include <linux/hardirq.h>
+#include <linux/thread_info.h>
+#include <linux/kbuild.h>
+
+int main(int argc, char *argv[])
+{
+        /* struct pt_regs */
+        DEFINE(PT_SIZE, sizeof(struct pt_regs));
+        DEFINE(PT_MSR, offsetof(struct pt_regs, msr));
+        DEFINE(PT_EAR, offsetof(struct pt_regs, ear));
+        DEFINE(PT_ESR, offsetof(struct pt_regs, esr));
+        DEFINE(PT_FSR, offsetof(struct pt_regs, fsr));
+        DEFINE(PT_PC, offsetof(struct pt_regs, pc));
+        DEFINE(PT_R0, offsetof(struct pt_regs, r0));
+        DEFINE(PT_R1, offsetof(struct pt_regs, r1));
+        DEFINE(PT_R2, offsetof(struct pt_regs, r2));
+        DEFINE(PT_R3, offsetof(struct pt_regs, r3));
+        DEFINE(PT_R4, offsetof(struct pt_regs, r4));
+        DEFINE(PT_R5, offsetof(struct pt_regs, r5));
+        DEFINE(PT_R6, offsetof(struct pt_regs, r6));
+        DEFINE(PT_R7, offsetof(struct pt_regs, r7));
+        DEFINE(PT_R8, offsetof(struct pt_regs, r8));
+        DEFINE(PT_R9, offsetof(struct pt_regs, r9));
+        DEFINE(PT_R10, offsetof(struct pt_regs, r10));
+        DEFINE(PT_R11, offsetof(struct pt_regs, r11));
+        DEFINE(PT_R12, offsetof(struct pt_regs, r12));
+        DEFINE(PT_R13, offsetof(struct pt_regs, r13));
+        DEFINE(PT_R14, offsetof(struct pt_regs, r14));
+        DEFINE(PT_R15, offsetof(struct pt_regs, r15));
+        DEFINE(PT_R16, offsetof(struct pt_regs, r16));
+        DEFINE(PT_R17, offsetof(struct pt_regs, r17));
+        DEFINE(PT_R18, offsetof(struct pt_regs, r18));
+        DEFINE(PT_R19, offsetof(struct pt_regs, r19));
+        DEFINE(PT_R20, offsetof(struct pt_regs, r20));
+        DEFINE(PT_R21, offsetof(struct pt_regs, r21));
+        DEFINE(PT_R22, offsetof(struct pt_regs, r22));
+        DEFINE(PT_R23, offsetof(struct pt_regs, r23));
+        DEFINE(PT_R24, offsetof(struct pt_regs, r24));
+        DEFINE(PT_R25, offsetof(struct pt_regs, r25));
+        DEFINE(PT_R26, offsetof(struct pt_regs, r26));
+        DEFINE(PT_R27, offsetof(struct pt_regs, r27));
+        DEFINE(PT_R28, offsetof(struct pt_regs, r28));
+        DEFINE(PT_R29, offsetof(struct pt_regs, r29));
+        DEFINE(PT_R30, offsetof(struct pt_regs, r30));
+        DEFINE(PT_R31, offsetof(struct pt_regs, r31));
+        DEFINE(PT_MODE, offsetof(struct pt_regs, kernel_mode));
+        BLANK();
+
+        /* Magic offsets for PTRACE PEEK/POKE etc */
+        DEFINE(PT_TEXT_ADDR, sizeof(struct pt_regs) + 1);
+        DEFINE(PT_TEXT_LEN, sizeof(struct pt_regs) + 2);
+        DEFINE(PT_DATA_ADDR, sizeof(struct pt_regs) + 3);
+        BLANK();
+
+        /* struct task_struct */
+        DEFINE(TS_THREAD_INFO, offsetof(struct task_struct, stack));
+
+        /* struct thread_info */
+        DEFINE(TI_TASK, offsetof(struct thread_info, task));
+        DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
+        DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+        DEFINE(TI_STATUS, offsetof(struct thread_info, status));
+        DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
+        DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
+        DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
+        DEFINE(TI_RESTART_BLOCK, offsetof(struct thread_info, restart_block));
+        DEFINE(TI_CPU_CONTEXT, offsetof(struct thread_info, cpu_context));
+        BLANK();
+
+        /* struct cpu_context */
+        DEFINE(CC_R1, offsetof(struct cpu_context, r1)); /* r1 */
+        DEFINE(CC_R2, offsetof(struct cpu_context, r2));
+        /* dedicated registers */
+        DEFINE(CC_R13, offsetof(struct cpu_context, r13));
+        DEFINE(CC_R14, offsetof(struct cpu_context, r14));
+        DEFINE(CC_R15, offsetof(struct cpu_context, r15));
+        DEFINE(CC_R16, offsetof(struct cpu_context, r16));
+        DEFINE(CC_R17, offsetof(struct cpu_context, r17));
+        DEFINE(CC_R18, offsetof(struct cpu_context, r18));
+        /* non-volatile registers */
+        DEFINE(CC_R19, offsetof(struct cpu_context, r19));
+        DEFINE(CC_R20, offsetof(struct cpu_context, r20));
+        DEFINE(CC_R21, offsetof(struct cpu_context, r21));
+        DEFINE(CC_R22, offsetof(struct cpu_context, r22));
+        DEFINE(CC_R23, offsetof(struct cpu_context, r23));
+        DEFINE(CC_R24, offsetof(struct cpu_context, r24));
+        DEFINE(CC_R25, offsetof(struct cpu_context, r25));
+        DEFINE(CC_R26, offsetof(struct cpu_context, r26));
+        DEFINE(CC_R27, offsetof(struct cpu_context, r27));
+        DEFINE(CC_R28, offsetof(struct cpu_context, r28));
+        DEFINE(CC_R29, offsetof(struct cpu_context, r29));
+        DEFINE(CC_R30, offsetof(struct cpu_context, r30));
+        /* special purpose registers */
+        DEFINE(CC_MSR, offsetof(struct cpu_context, msr));
+        DEFINE(CC_EAR, offsetof(struct cpu_context, ear));
+        DEFINE(CC_ESR, offsetof(struct cpu_context, esr));
+        DEFINE(CC_FSR, offsetof(struct cpu_context, fsr));
+        BLANK();
+
+        return 0;
+}
diff --git a/arch/microblaze/kernel/cpu/Makefile b/arch/microblaze/kernel/cpu/Makefile
new file mode 100644
index 000000000000..20646e549271
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/Makefile
@@ -0,0 +1,8 @@
+#
+# Build the appropriate CPU version support
+#
+
+EXTRA_CFLAGS += -DCPU_MAJOR=$(CPU_MAJOR) -DCPU_MINOR=$(CPU_MINOR) \
+                -DCPU_REV=$(CPU_REV)
+
+obj-y += cache.o cpuinfo.o cpuinfo-pvr-full.o cpuinfo-static.o mb.o pvr.o
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
new file mode 100644
index 000000000000..be9fecca4f91
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -0,0 +1,258 @@
+/*
+ * Cache control for MicroBlaze cache memories
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * 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.
+ */
+
+#include <asm/cacheflush.h>
+#include <linux/cache.h>
+#include <asm/cpuinfo.h>
+
+/* Exported functions */
+
+void _enable_icache(void)
+{
+        if (cpuinfo.use_icache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+                __asm__ __volatile__ ("                                 \
+                                msrset  r0, %0;                         \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_ICE)                         \
+                                : "memory");
+#else
+                __asm__ __volatile__ ("                                 \
+                                mfs     r12, rmsr;                      \
+                                nop;                                    \
+                                ori     r12, r12, %0;                   \
+                                mts     rmsr, r12;                      \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_ICE)                         \
+                                : "memory", "r12");
+#endif
+        }
+}
+
+void _disable_icache(void)
+{
+        if (cpuinfo.use_icache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+                __asm__ __volatile__ ("                                 \
+                                msrclr r0, %0;                          \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_ICE)                         \
+                                : "memory");
+#else
+                __asm__ __volatile__ ("                                 \
+                                mfs     r12, rmsr;                      \
+                                nop;                                    \
+                                andi    r12, r12, ~%0;                  \
+                                mts     rmsr, r12;                      \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_ICE)                         \
+                                : "memory", "r12");
+#endif
+        }
+}
+
+void _invalidate_icache(unsigned int addr)
+{
+        if (cpuinfo.use_icache) {
+                __asm__ __volatile__ ("                                 \
+                                wic     %0, r0"                         \
+                                :                                       \
+                                : "r" (addr));
+        }
+}
+
+void _enable_dcache(void)
+{
+        if (cpuinfo.use_dcache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+                __asm__ __volatile__ ("                                 \
+                                msrset  r0, %0;                         \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_DCE)                         \
+                                : "memory");
+#else
+                __asm__ __volatile__ ("                                 \
+                                mfs     r12, rmsr;                      \
+                                nop;                                    \
+                                ori     r12, r12, %0;                   \
+                                mts     rmsr, r12;                      \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_DCE)                 \
+                                : "memory", "r12");
+#endif
+        }
+}
+
+void _disable_dcache(void)
+{
+        if (cpuinfo.use_dcache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+                __asm__ __volatile__ ("                                 \
+                                msrclr  r0, %0;                         \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_DCE)                 \
+                                : "memory");
+#else
+                __asm__ __volatile__ ("                                 \
+                                mfs     r12, rmsr;                      \
+                                nop;                                    \
+                                andi    r12, r12, ~%0;                  \
+                                mts     rmsr, r12;                      \
+                                nop; "                                  \
+                                :                                       \
+                                : "i" (MSR_DCE)                 \
+                                : "memory", "r12");
+#endif
+        }
+}
+
+void _invalidate_dcache(unsigned int addr)
+{
+        if (cpuinfo.use_dcache)
+                __asm__ __volatile__ ("                                 \
+                                wdc     %0, r0"                         \
+                                :                                       \
+                                : "r" (addr));
+}
+
+void __invalidate_icache_all(void)
+{
+        unsigned int i;
+        unsigned flags;
+
+        if (cpuinfo.use_icache) {
+                local_irq_save(flags);
+                __disable_icache();
+
+                /* Just loop through cache size and invalidate, no need to add
+                        CACHE_BASE address */
+                for (i = 0; i < cpuinfo.icache_size;
+                        i += cpuinfo.icache_line)
+                                __invalidate_icache(i);
+
+                __enable_icache();
+                local_irq_restore(flags);
+        }
+}
+
+void __invalidate_icache_range(unsigned long start, unsigned long end)
+{
+        unsigned int i;
+        unsigned flags;
+        unsigned int align;
+
+        if (cpuinfo.use_icache) {
+                /*
+                 * No need to cover entire cache range,
+                 * just cover cache footprint
+                 */
+                end = min(start + cpuinfo.icache_size, end);
+                align = ~(cpuinfo.icache_line - 1);
+                start &= align; /* Make sure we are aligned */
+                /* Push end up to the next cache line */
+                end = ((end & align) + cpuinfo.icache_line);
+
+                local_irq_save(flags);
+                __disable_icache();
+
+                for (i = start; i < end; i += cpuinfo.icache_line)
+                        __invalidate_icache(i);
+
+                __enable_icache();
+                local_irq_restore(flags);
+        }
+}
+
+void __invalidate_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+        __invalidate_icache_all();
+}
+
+void __invalidate_icache_user_range(struct vm_area_struct *vma,
+                                struct page *page, unsigned long adr,
+                                int len)
+{
+        __invalidate_icache_all();
+}
+
+void __invalidate_cache_sigtramp(unsigned long addr)
+{
+        __invalidate_icache_range(addr, addr + 8);
+}
+
+void __invalidate_dcache_all(void)
+{
+        unsigned int i;
+        unsigned flags;
+
+        if (cpuinfo.use_dcache) {
+                local_irq_save(flags);
+                __disable_dcache();
+
+                /*
+                 * Just loop through cache size and invalidate,
+                 * no need to add CACHE_BASE address
+                 */
+                for (i = 0; i < cpuinfo.dcache_size;
+                        i += cpuinfo.dcache_line)
+                                __invalidate_dcache(i);
+
+                __enable_dcache();
+                local_irq_restore(flags);
+        }
+}
+
+void __invalidate_dcache_range(unsigned long start, unsigned long end)
+{
+        unsigned int i;
+        unsigned flags;
+        unsigned int align;
+
+        if (cpuinfo.use_dcache) {
+                /*
+                 * No need to cover entire cache range,
+                 * just cover cache footprint
+                 */
+                end = min(start + cpuinfo.dcache_size, end);
+                align = ~(cpuinfo.dcache_line - 1);
+                start &= align; /* Make sure we are aligned */
+                /* Push end up to the next cache line */
+                end = ((end & align) + cpuinfo.dcache_line);
+                local_irq_save(flags);
+                __disable_dcache();
+
+                for (i = start; i < end; i += cpuinfo.dcache_line)
+                        __invalidate_dcache(i);
+
+                __enable_dcache();
+                local_irq_restore(flags);
+        }
+}
+
+void __invalidate_dcache_page(struct vm_area_struct *vma, struct page *page)
+{
+        __invalidate_dcache_all();
+}
+
+void __invalidate_dcache_user_range(struct vm_area_struct *vma,
+                                struct page *page, unsigned long adr,
+                                int len)
+{
+        __invalidate_dcache_all();
+}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
new file mode 100644
index 000000000000..cf7424a6bb87
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
@@ -0,0 +1,101 @@
+/*
+ * Support for MicroBlaze PVR (processor version register)
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <asm/pvr.h>
+#include <asm/cpuinfo.h>
+
+/*
+ * Helper macro to map between fields in our struct cpuinfo, and
+ * the PVR macros in pvr.h.
+ */
+
+#define CI(c, p) { ci->c = PVR_##p(pvr); }
+#define err_printk(x) \
+        early_printk("ERROR: Microblaze " x " - different for PVR and DTS\n");
+
+void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
+{
+        struct pvr_s pvr;
+        int temp; /* for saving temp value */
+        get_pvr(&pvr);
+
+        temp = PVR_USE_BARREL(pvr) | PVR_USE_MSR_INSTR(pvr) |\
+                PVR_USE_PCMP_INSTR(pvr) | PVR_USE_DIV(pvr);
+        if (ci->use_instr != temp)
+                err_printk("BARREL, MSR, PCMP or DIV");
+        ci->use_instr = temp;
+
+        temp = PVR_USE_HW_MUL(pvr) | PVR_USE_MUL64(pvr);
+        if (ci->use_mult != temp)
+                err_printk("HW_MUL");
+        ci->use_mult = temp;
+
+        temp = PVR_USE_FPU(pvr) | PVR_USE_FPU2(pvr);
+        if (ci->use_fpu != temp)
+                err_printk("HW_FPU");
+        ci->use_fpu = temp;
+
+        ci->use_exc = PVR_OPCODE_0x0_ILLEGAL(pvr) |\
+                        PVR_UNALIGNED_EXCEPTION(pvr) |\
+                        PVR_ILL_OPCODE_EXCEPTION(pvr) |\
+                        PVR_IOPB_BUS_EXCEPTION(pvr) |\
+                        PVR_DOPB_BUS_EXCEPTION(pvr) |\
+                        PVR_DIV_ZERO_EXCEPTION(pvr) |\
+                        PVR_FPU_EXCEPTION(pvr) |\
+                        PVR_FSL_EXCEPTION(pvr);
+
+        CI(pvr_user1, USER1);
+        CI(pvr_user2, USER2);
+
+        CI(mmu, USE_MMU);
+
+        CI(ver_code, VERSION);
+
+        CI(use_icache, USE_ICACHE);
+        CI(icache_tagbits, ICACHE_ADDR_TAG_BITS);
+        CI(icache_write, ICACHE_ALLOW_WR);
+        CI(icache_line, ICACHE_LINE_LEN);
+        CI(icache_size, ICACHE_BYTE_SIZE);
+        CI(icache_base, ICACHE_BASEADDR);
+        CI(icache_high, ICACHE_HIGHADDR);
+
+        CI(use_dcache, USE_DCACHE);
+        CI(dcache_tagbits, DCACHE_ADDR_TAG_BITS);
+        CI(dcache_write, DCACHE_ALLOW_WR);
+        CI(dcache_line, DCACHE_LINE_LEN);
+        CI(dcache_size, DCACHE_BYTE_SIZE);
+        CI(dcache_base, DCACHE_BASEADDR);
+        CI(dcache_high, DCACHE_HIGHADDR);
+
+        CI(use_dopb, D_OPB);
+        CI(use_iopb, I_OPB);
+        CI(use_dlmb, D_LMB);
+        CI(use_ilmb, I_LMB);
+        CI(num_fsl, FSL_LINKS);
+
+        CI(irq_edge, INTERRUPT_IS_EDGE);
+        CI(irq_positive, EDGE_IS_POSITIVE);
+
+        CI(area_optimised, AREA_OPTIMISED);
+
+        CI(hw_debug, DEBUG_ENABLED);
+        CI(num_pc_brk, NUMBER_OF_PC_BRK);
+        CI(num_rd_brk, NUMBER_OF_RD_ADDR_BRK);
+        CI(num_wr_brk, NUMBER_OF_WR_ADDR_BRK);
+
+        CI(fpga_family_code, TARGET_FAMILY);
+
+        /* take timebase-frequency from DTS */
+        ci->cpu_clock_freq = fcpu(cpu, "timebase-frequency");
+}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c
new file mode 100644
index 000000000000..cfe44effdb77
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <asm/cpuinfo.h>
+#include <asm/pvr.h>
+
+const static char family_string[] = CONFIG_XILINX_MICROBLAZE0_FAMILY;
+const static char cpu_ver_string[] = CONFIG_XILINX_MICROBLAZE0_HW_VER;
+
+#define err_printk(x) \
+        early_printk("ERROR: Microblaze " x "- different for kernel and DTS\n");
+
+void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
+{
+        int i = 0;
+
+        ci->use_instr =
+                (fcpu(cpu, "xlnx,use-barrel") ? PVR0_USE_BARREL_MASK : 0) |
+                (fcpu(cpu, "xlnx,use-msr-instr") ? PVR2_USE_MSR_INSTR : 0) |
+                (fcpu(cpu, "xlnx,use-pcmp-instr") ? PVR2_USE_PCMP_INSTR : 0) |
+                (fcpu(cpu, "xlnx,use-div") ? PVR0_USE_DIV_MASK : 0);
+        if (CONFIG_XILINX_MICROBLAZE0_USE_BARREL)
+                i |= PVR0_USE_BARREL_MASK;
+        if (CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR)
+                i |= PVR2_USE_MSR_INSTR;
+        if (CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR)
+                i |= PVR2_USE_PCMP_INSTR;
+        if (CONFIG_XILINX_MICROBLAZE0_USE_DIV)
+                i |= PVR0_USE_DIV_MASK;
+        if (ci->use_instr != i)
+                err_printk("BARREL, MSR, PCMP or DIV");
+
+        ci->use_mult = fcpu(cpu, "xlnx,use-hw-mul");
+        if (ci->use_mult != CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)
+                err_printk("HW_MUL");
+        ci->use_mult =
+                (ci->use_mult > 1 ?
+                                (PVR2_USE_MUL64_MASK | PVR0_USE_HW_MUL_MASK) :
+                                (ci->use_mult == 1 ? PVR0_USE_HW_MUL_MASK : 0));
+
+        ci->use_fpu = fcpu(cpu, "xlnx,use-fpu");
+        if (ci->use_fpu != CONFIG_XILINX_MICROBLAZE0_USE_FPU)
+                err_printk("HW_FPU");
+        ci->use_fpu = (ci->use_fpu > 1 ?
+                                (PVR2_USE_FPU2_MASK | PVR0_USE_FPU_MASK) :
+                                (ci->use_fpu == 1 ? PVR0_USE_FPU_MASK : 0));
+
+        ci->use_exc =
+                (fcpu(cpu, "xlnx,unaligned-exceptions") ?
+                                PVR2_UNALIGNED_EXC_MASK : 0) |
+                (fcpu(cpu, "xlnx,ill-opcode-exception") ?
+                                PVR2_ILL_OPCODE_EXC_MASK : 0) |
+                (fcpu(cpu, "xlnx,iopb-bus-exception") ?
+                                PVR2_IOPB_BUS_EXC_MASK : 0) |
+                (fcpu(cpu, "xlnx,dopb-bus-exception") ?
+                                PVR2_DOPB_BUS_EXC_MASK : 0) |
+                (fcpu(cpu, "xlnx,div-zero-exception") ?
+                                PVR2_DIV_ZERO_EXC_MASK : 0) |
+                (fcpu(cpu, "xlnx,fpu-exception") ? PVR2_FPU_EXC_MASK : 0) |
+                (fcpu(cpu, "xlnx,fsl-exception") ? PVR2_USE_EXTEND_FSL : 0);
+
+        ci->use_icache = fcpu(cpu, "xlnx,use-icache");
+        ci->icache_tagbits = fcpu(cpu, "xlnx,addr-tag-bits");
+        ci->icache_write = fcpu(cpu, "xlnx,allow-icache-wr");
+        ci->icache_line = fcpu(cpu, "xlnx,icache-line-len") << 2;
+        if (!ci->icache_line) {
+                if (fcpu(cpu, "xlnx,icache-use-fsl"))
+                        ci->icache_line = 4 << 2;
+                else
+                        ci->icache_line = 1 << 2;
+        }
+        ci->icache_size = fcpu(cpu, "i-cache-size");
+        ci->icache_base = fcpu(cpu, "i-cache-baseaddr");
+        ci->icache_high = fcpu(cpu, "i-cache-highaddr");
+
+        ci->use_dcache = fcpu(cpu, "xlnx,use-dcache");
+        ci->dcache_tagbits = fcpu(cpu, "xlnx,dcache-addr-tag");
+        ci->dcache_write = fcpu(cpu, "xlnx,allow-dcache-wr");
+        ci->dcache_line = fcpu(cpu, "xlnx,dcache-line-len") << 2;
+        if (!ci->dcache_line) {
+                if (fcpu(cpu, "xlnx,dcache-use-fsl"))
+                        ci->dcache_line = 4 << 2;
+                else
+                        ci->dcache_line = 1 << 2;
+        }
+        ci->dcache_size = fcpu(cpu, "d-cache-size");
+        ci->dcache_base = fcpu(cpu, "d-cache-baseaddr");
+        ci->dcache_high = fcpu(cpu, "d-cache-highaddr");
+
+        ci->use_dopb = fcpu(cpu, "xlnx,d-opb");
+        ci->use_iopb = fcpu(cpu, "xlnx,i-opb");
+        ci->use_dlmb = fcpu(cpu, "xlnx,d-lmb");
+        ci->use_ilmb = fcpu(cpu, "xlnx,i-lmb");
+
+        ci->num_fsl = fcpu(cpu, "xlnx,fsl-links");
+        ci->irq_edge = fcpu(cpu, "xlnx,interrupt-is-edge");
+        ci->irq_positive = fcpu(cpu, "xlnx,edge-is-positive");
+        ci->area_optimised = 0;
+
+        ci->hw_debug = fcpu(cpu, "xlnx,debug-enabled");
+        ci->num_pc_brk = fcpu(cpu, "xlnx,number-of-pc-brk");
+        ci->num_rd_brk = fcpu(cpu, "xlnx,number-of-rd-addr-brk");
+        ci->num_wr_brk = fcpu(cpu, "xlnx,number-of-wr-addr-brk");
+
+        ci->cpu_clock_freq = fcpu(cpu, "timebase-frequency");
+
+        ci->pvr_user1 = fcpu(cpu, "xlnx,pvr-user1");
+        ci->pvr_user2 = fcpu(cpu, "xlnx,pvr-user2");
+
+        ci->mmu = fcpu(cpu, "xlnx,use-mmu");
+
+        ci->ver_code = 0;
+        ci->fpga_family_code = 0;
+
+        /* Do various fixups based on CPU version and FPGA family strings */
+
+        /* Resolved the CPU version code */
+        for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
+                if (strcmp(cpu_ver_lookup[i].s, cpu_ver_string) == 0)
+                        ci->ver_code = cpu_ver_lookup[i].k;
+        }
+
+        /* Resolved the fpga family code */
+        for (i = 0; family_string_lookup[i].s != NULL; i++) {
+                if (strcmp(family_string_lookup[i].s, family_string) == 0)
+                        ci->fpga_family_code = family_string_lookup[i].k;
+        }
+
+        /* FIXME - mb3 and spartan2 do not exist in PVR */
+        /* This is mb3 and on a non Spartan2 */
+        if (ci->ver_code == 0x20 && ci->fpga_family_code != 0xf0)
+                /* Hardware Multiplier in use */
+                ci->use_mult = 1;
+}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
new file mode 100644
index 000000000000..4a740dfcf6da
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <asm/cpuinfo.h>
+#include <asm/pvr.h>
+
+const struct cpu_ver_key cpu_ver_lookup[] = {
+        /* These key value are as per MBV field in PVR0 */
+        {"5.00.a", 0x01},
+        {"5.00.b", 0x02},
+        {"5.00.c", 0x03},
+        {"6.00.a", 0x04},
+        {"6.00.b", 0x06},
+        {"7.00.a", 0x05},
+        {"7.00.b", 0x07},
+        {"7.10.a", 0x08},
+        {"7.10.b", 0x09},
+        {"7.10.c", 0x0a},
+        {"7.10.d", 0x0b},
+        /* FIXME There is no keycode defined in MBV for these versions */
+        {"2.10.a", 0x10},
+        {"3.00.a", 0x20},
+        {"4.00.a", 0x30},
+        {"4.00.b", 0x40},
+        {NULL, 0},
+};
+
+/*
+ * FIXME Not sure if the actual key is defined by Xilinx in the PVR
+ */
+const struct family_string_key family_string_lookup[] = {
+        {"virtex2", 0x4},
+        {"virtex2pro", 0x5},
+        {"spartan3", 0x6},
+        {"virtex4", 0x7},
+        {"virtex5", 0x8},
+        {"spartan3e", 0x9},
+        {"spartan3a", 0xa},
+        {"spartan3an", 0xb},
+        {"spartan3adsp", 0xc},
+        /* FIXME There is no key code defined for spartan2 */
+        {"spartan2", 0xf0},
+        {NULL, 0},
+};
+
+struct cpuinfo cpuinfo;
+
+void __init setup_cpuinfo(void)
+{
+        struct device_node *cpu = NULL;
+
+        cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu");
+        if (!cpu)
+                printk(KERN_ERR "You don't have cpu!!!\n");
+
+        printk(KERN_INFO "%s: initialising\n", __func__);
+
+        switch (cpu_has_pvr()) {
+        case 0:
+                printk(KERN_WARNING
+                        "%s: No PVR support. Using static CPU info from FDT\n",
+                        __func__);
+                set_cpuinfo_static(&cpuinfo, cpu);
+                break;
+/* FIXME I found weird behavior with MB 7.00.a/b
+ * please do not use FULL PVR with MMU */
+        case 1:
+                printk(KERN_INFO "%s: Using full CPU PVR support\n",
+                        __func__);
+                set_cpuinfo_static(&cpuinfo, cpu);
+                set_cpuinfo_pvr_full(&cpuinfo, cpu);
+                break;
+        default:
+                printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__);
+                set_cpuinfo_static(&cpuinfo, cpu);
+        }
+}
diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c
new file mode 100644
index 000000000000..3b6212bdc8dc
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/mb.c
@@ -0,0 +1,148 @@
+/*
+ * CPU-version specific code
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006-2009 PetaLogix
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/cpu.h>
+#include <linux/initrd.h>
+
+#include <linux/bug.h>
+#include <asm/cpuinfo.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <asm/page.h>
+#include <linux/param.h>
+#include <asm/pvr.h>
+#include <asm/sections.h>
+#include <asm/setup.h>
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+        int count = 0;
+        char *fpga_family = "Unknown";
+        char *cpu_ver = "Unknown";
+        int i;
+
+        /* Denormalised to get the fpga family string */
+        for (i = 0; family_string_lookup[i].s != NULL; i++) {
+                if (cpuinfo.fpga_family_code == family_string_lookup[i].k) {
+                        fpga_family = (char *)family_string_lookup[i].s;
+                        break;
+                }
+        }
+
+        /* Denormalised to get the hw version string */
+        for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
+                if (cpuinfo.ver_code == cpu_ver_lookup[i].k) {
+                        cpu_ver = (char *)cpu_ver_lookup[i].s;
+                        break;
+                }
+        }
+
+        count = seq_printf(m,
+                        "CPU-Family:    MicroBlaze\n"
+                        "FPGA-Arch:     %s\n"
+                        "CPU-Ver:       %s\n"
+                        "CPU-MHz:       %d.%02d\n"
+                        "BogoMips:      %lu.%02lu\n",
+                        fpga_family,
+                        cpu_ver,
+                        cpuinfo.cpu_clock_freq /
+                        1000000,
+                        cpuinfo.cpu_clock_freq %
+                        1000000,
+                        loops_per_jiffy / (500000 / HZ),
+                        (loops_per_jiffy / (5000 / HZ)) % 100);
+
+        count += seq_printf(m,
+                "HW:\n Shift:\t\t%s\n"
+                " MSR:\t\t%s\n"
+                " PCMP:\t\t%s\n"
+                " DIV:\t\t%s\n",
+                (cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no",
+                (cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no",
+                (cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no",
+                (cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no");
+
+        count += seq_printf(m,
+                        " MMU:\t\t%x\n",
+                        cpuinfo.mmu);
+
+        count += seq_printf(m,
+                " MUL:\t\t%s\n"
+                " FPU:\t\t%s\n",
+                (cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" :
+                        (cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no",
+                (cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" :
+                        (cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no");
+
+        count += seq_printf(m,
+                " Exc:\t\t%s%s%s%s%s%s%s%s\n",
+                (cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "",
+                (cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "",
+                (cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "",
+                (cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "",
+                (cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "",
+                (cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "",
+                (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "",
+                (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : "");
+
+        if (cpuinfo.use_icache)
+                count += seq_printf(m,
+                                "Icache:\t\t%ukB\n",
+                                cpuinfo.icache_size >> 10);
+        else
+                count += seq_printf(m, "Icache:\t\tno\n");
+
+        if (cpuinfo.use_dcache)
+                count += seq_printf(m,
+                                "Dcache:\t\t%ukB\n",
+                                cpuinfo.dcache_size >> 10);
+        else
+                count += seq_printf(m, "Dcache:\t\tno\n");
+
+        count += seq_printf(m,
+                        "HW-Debug:\t%s\n",
+                        cpuinfo.hw_debug ? "yes" : "no");
+
+        count += seq_printf(m,
+                        "PVR-USR1:\t%x\n"
+                        "PVR-USR2:\t%x\n",
+                        cpuinfo.pvr_user1,
+                        cpuinfo.pvr_user2);
+
+        return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+        int 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)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+        .start = c_start,
+        .next = c_next,
+        .stop = c_stop,
+        .show = show_cpuinfo,
+};
diff --git a/arch/microblaze/kernel/cpu/pvr.c b/arch/microblaze/kernel/cpu/pvr.c
new file mode 100644
index 000000000000..c9a4340ddd53
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/pvr.c
@@ -0,0 +1,81 @@
+/*
+ * Support for MicroBlaze PVR (processor version register)
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <asm/system.h>
+#include <asm/exceptions.h>
+#include <asm/pvr.h>
+
+/*
+ * Until we get an assembler that knows about the pvr registers,
+ * this horrible cruft will have to do.
+ * That hardcoded opcode is mfs r3, rpvrNN
+ */
+
+#define get_single_pvr(pvrid, val)                              \
+{                                                               \
+        register unsigned tmp __asm__("r3");                    \
+        tmp = 0x0;      /* Prevent warning about unused */      \
+        __asm__ __volatile__ (                                  \
+                        ".byte 0x94,0x60,0xa0, " #pvrid "\n\t"  \
+                        : "=r" (tmp) : : "memory");             \
+        val = tmp;                                              \
+}
+
+/*
+ * Does the CPU support the PVR register?
+ * return value:
+ * 0: no PVR
+ * 1: simple PVR
+ * 2: full PVR
+ *
+ * This must work on all CPU versions, including those before the
+ * PVR was even an option.
+ */
+
+int cpu_has_pvr(void)
+{
+        unsigned flags;
+        unsigned pvr0;
+
+        local_save_flags(flags);
+
+        /* PVR bit in MSR tells us if there is any support */
+        if (!(flags & PVR_MSR_BIT))
+                return 0;
+
+        get_single_pvr(0x00, pvr0);
+        pr_debug("%s: pvr0 is 0x%08x\n", __func__, pvr0);
+
+        if (pvr0 & PVR0_PVR_FULL_MASK)
+                return 1;
+
+        /* for partial PVR use static cpuinfo */
+        return 2;
+}
+
+void get_pvr(struct pvr_s *p)
+{
+        get_single_pvr(0, p->pvr[0]);
+        get_single_pvr(1, p->pvr[1]);
+        get_single_pvr(2, p->pvr[2]);
+        get_single_pvr(3, p->pvr[3]);
+        get_single_pvr(4, p->pvr[4]);
+        get_single_pvr(5, p->pvr[5]);
+        get_single_pvr(6, p->pvr[6]);
+        get_single_pvr(7, p->pvr[7]);
+        get_single_pvr(8, p->pvr[8]);
+        get_single_pvr(9, p->pvr[9]);
+        get_single_pvr(10, p->pvr[10]);
+        get_single_pvr(11, p->pvr[11]);
+}
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
new file mode 100644
index 000000000000..62cc78993f44
--- /dev/null
+++ b/arch/microblaze/kernel/early_printk.c
@@ -0,0 +1,107 @@
+/*
+ * Early printk support for Microblaze.
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2003-2006 Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * 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.
+ */
+
+#include <linux/console.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/tty.h>
+#include <linux/io.h>
+#include <asm/processor.h>
+#include <linux/fcntl.h>
+#include <asm/setup.h>
+#include <asm/prom.h>
+
+static u32 early_console_initialized;
+static u32 base_addr;
+
+static void early_printk_putc(char c)
+{
+        /*
+         * Limit how many times we'll spin waiting for TX FIFO status.
+         * This will prevent lockups if the base address is incorrectly
+         * set, or any other issue on the UARTLITE.
+         * This limit is pretty arbitrary, unless we are at about 10 baud
+         * we'll never timeout on a working UART.
+         */
+
+        unsigned retries = 10000;
+        /* read status bit - 0x8 offset */
+        while (retries-- && (in_be32(base_addr + 8) & (1 << 3)))
+                ;
+
+        /* Only attempt the iowrite if we didn't timeout */
+        /* write to TX_FIFO - 0x4 offset */
+        if (retries)
+                out_be32(base_addr + 4, c & 0xff);
+}
+
+static void early_printk_write(struct console *unused,
+                                        const char *s, unsigned n)
+{
+        while (*s && n-- > 0) {
+                early_printk_putc(*s);
+                if (*s == '\n')
+                        early_printk_putc('\r');
+                s++;
+        }
+}
+
+static struct console early_serial_console = {
+        .name = "earlyser",
+        .write = early_printk_write,
+        .flags = CON_PRINTBUFFER,
+        .index = -1,
+};
+
+static struct console *early_console = &early_serial_console;
+
+void early_printk(const char *fmt, ...)
+{
+        char buf[512];
+        int n;
+        va_list ap;
+
+        if (early_console_initialized) {
+                va_start(ap, fmt);
+                n = vscnprintf(buf, 512, fmt, ap);
+                early_console->write(early_console, buf, n);
+                va_end(ap);
+        }
+}
+
+int __init setup_early_printk(char *opt)
+{
+        if (early_console_initialized)
+                return 1;
+
+        base_addr = early_uartlite_console();
+        if (base_addr) {
+                early_console_initialized = 1;
+                early_printk("early_printk_console is enabled at 0x%08x\n",
+                                                        base_addr);
+
+                /* register_console(early_console); */
+
+                return 0;
+        } else
+                return 1;
+}
+
+void __init disable_early_printk(void)
+{
+        if (!early_console_initialized || !early_console)
+                return;
+        printk(KERN_WARNING "disabling early console\n");
+        unregister_console(early_console);
+        early_console_initialized = 0;
+}
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
new file mode 100644
index 000000000000..f24b1268baaf
--- /dev/null
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -0,0 +1,596 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+#include <asm/entry.h>
+#include <asm/asm-offsets.h>
+#include <asm/registers.h>
+#include <asm/unistd.h>
+#include <asm/percpu.h>
+#include <asm/signal.h>
+
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+        .macro  disable_irq
+        msrclr r0, MSR_IE
+        .endm
+
+        .macro  enable_irq
+        msrset r0, MSR_IE
+        .endm
+
+        .macro  clear_bip
+        msrclr r0, MSR_BIP
+        .endm
+#else
+        .macro  disable_irq
+        mfs r11, rmsr
+        andi r11, r11, ~MSR_IE
+        mts rmsr, r11
+        .endm
+
+        .macro  enable_irq
+        mfs r11, rmsr
+        ori r11, r11, MSR_IE
+        mts rmsr, r11
+        .endm
+
+        .macro  clear_bip
+        mfs r11, rmsr
+        andi r11, r11, ~MSR_BIP
+        mts rmsr, r11
+        .endm
+#endif
+
+ENTRY(_interrupt)
+        swi     r1, r0, PER_CPU(ENTRY_SP)       /* save the current sp */
+        swi     r11, r0, PER_CPU(R11_SAVE)      /* temporarily save r11 */
+        lwi     r11, r0, PER_CPU(KM)            /* load mode indicator */
+        beqid   r11, 1f
+        nop
+        brid    2f                              /* jump over */
+        addik   r1, r1, (-PT_SIZE)      /* room for pt_regs (delay slot) */
+1:                                              /* switch to kernel stack */
+        lwi     r1, r0, PER_CPU(CURRENT_SAVE)   /* get the saved current */
+        lwi     r1, r1, TS_THREAD_INFO          /* get the thread info */
+        /* calculate kernel stack pointer */
+        addik   r1, r1, THREAD_SIZE - PT_SIZE
+2:
+        swi     r11, r1, PT_MODE                /* store the mode */
+        lwi     r11, r0, PER_CPU(R11_SAVE)      /* reload r11 */
+        swi     r2, r1, PT_R2
+        swi     r3, r1, PT_R3
+        swi     r4, r1, PT_R4
+        swi     r5, r1, PT_R5
+        swi     r6, r1, PT_R6
+        swi     r7, r1, PT_R7
+        swi     r8, r1, PT_R8
+        swi     r9, r1, PT_R9
+        swi     r10, r1, PT_R10
+        swi     r11, r1, PT_R11
+        swi     r12, r1, PT_R12
+        swi     r13, r1, PT_R13
+        swi     r14, r1, PT_R14
+        swi     r14, r1, PT_PC
+        swi     r15, r1, PT_R15
+        swi     r16, r1, PT_R16
+        swi     r17, r1, PT_R17
+        swi     r18, r1, PT_R18
+        swi     r19, r1, PT_R19
+        swi     r20, r1, PT_R20
+        swi     r21, r1, PT_R21
+        swi     r22, r1, PT_R22
+        swi     r23, r1, PT_R23
+        swi     r24, r1, PT_R24
+        swi     r25, r1, PT_R25
+        swi     r26, r1, PT_R26
+        swi     r27, r1, PT_R27
+        swi     r28, r1, PT_R28
+        swi     r29, r1, PT_R29
+        swi     r30, r1, PT_R30
+        swi     r31, r1, PT_R31
+        /* special purpose registers */
+        mfs     r11, rmsr
+        swi     r11, r1, PT_MSR
+        mfs     r11, rear
+        swi     r11, r1, PT_EAR
+        mfs     r11, resr
+        swi     r11, r1, PT_ESR
+        mfs     r11, rfsr
+        swi     r11, r1, PT_FSR
+        /* reload original stack pointer and save it */
+        lwi     r11, r0, PER_CPU(ENTRY_SP)
+        swi     r11, r1, PT_R1
+        /* update mode indicator we are in kernel mode */
+        addik   r11, r0, 1
+        swi     r11, r0, PER_CPU(KM)
+        /* restore r31 */
+        lwi     r31, r0, PER_CPU(CURRENT_SAVE)
+        /* prepare the link register, the argument and jump */
+        la      r15, r0, ret_from_intr - 8
+        addk    r6, r0, r15
+        braid   do_IRQ
+        add     r5, r0, r1
+
+ret_from_intr:
+        lwi     r11, r1, PT_MODE
+        bneid   r11, 3f
+
+        lwi     r6, r31, TS_THREAD_INFO /* get thread info */
+        lwi     r19, r6, TI_FLAGS       /* get flags in thread info */
+                                /* do an extra work if any bits are set */
+
+        andi    r11, r19, _TIF_NEED_RESCHED
+        beqi    r11, 1f
+        bralid  r15, schedule
+        nop
+1:      andi    r11, r19, _TIF_SIGPENDING
+        beqid   r11, no_intr_reshed
+        addk    r5, r1, r0
+        addk    r7, r0, r0
+        bralid  r15, do_signal
+        addk    r6, r0, r0
+
+no_intr_reshed:
+        /* save mode indicator */
+        lwi     r11, r1, PT_MODE
+3:
+        swi     r11, r0, PER_CPU(KM)
+
+        /* save r31 */
+        swi     r31, r0, PER_CPU(CURRENT_SAVE)
+restore_context:
+        /* special purpose registers */
+        lwi     r11, r1, PT_FSR
+        mts     rfsr, r11
+        lwi     r11, r1, PT_ESR
+        mts     resr, r11
+        lwi     r11, r1, PT_EAR
+        mts     rear, r11
+        lwi     r11, r1, PT_MSR
+        mts     rmsr, r11
+
+        lwi     r31, r1, PT_R31
+        lwi     r30, r1, PT_R30
+        lwi     r29, r1, PT_R29
+        lwi     r28, r1, PT_R28
+        lwi     r27, r1, PT_R27
+        lwi     r26, r1, PT_R26
+        lwi     r25, r1, PT_R25
+        lwi     r24, r1, PT_R24
+        lwi     r23, r1, PT_R23
+        lwi     r22, r1, PT_R22
+        lwi     r21, r1, PT_R21
+        lwi     r20, r1, PT_R20
+        lwi     r19, r1, PT_R19
+        lwi     r18, r1, PT_R18
+        lwi     r17, r1, PT_R17
+        lwi     r16, r1, PT_R16
+        lwi     r15, r1, PT_R15
+        lwi     r14, r1, PT_PC
+        lwi     r13, r1, PT_R13
+        lwi     r12, r1, PT_R12
+        lwi     r11, r1, PT_R11
+        lwi     r10, r1, PT_R10
+        lwi     r9, r1, PT_R9
+        lwi     r8, r1, PT_R8
+        lwi     r7, r1, PT_R7
+        lwi     r6, r1, PT_R6
+        lwi     r5, r1, PT_R5
+        lwi     r4, r1, PT_R4
+        lwi     r3, r1, PT_R3
+        lwi     r2, r1, PT_R2
+        lwi     r1, r1, PT_R1
+        rtid    r14, 0
+        nop
+
+ENTRY(_reset)
+        brai    0;
+
+ENTRY(_user_exception)
+        swi     r1, r0, PER_CPU(ENTRY_SP)       /* save the current sp */
+        swi     r11, r0, PER_CPU(R11_SAVE)      /* temporarily save r11 */
+        lwi     r11, r0, PER_CPU(KM)            /* load mode indicator */
+        beqid   r11, 1f                         /* Already in kernel mode? */
+        nop
+        brid    2f                              /* jump over */
+        addik   r1, r1, (-PT_SIZE)      /* Room for pt_regs (delay slot) */
+1:                                              /* Switch to kernel stack */
+        lwi     r1, r0, PER_CPU(CURRENT_SAVE)   /* get the saved current */
+        lwi     r1, r1, TS_THREAD_INFO          /* get the thread info */
+        /* calculate kernel stack pointer */
+        addik   r1, r1, THREAD_SIZE - PT_SIZE
+        swi     r11, r0, PER_CPU(R11_SAVE)      /* temporarily save r11 */
+        lwi     r11, r0, PER_CPU(KM)            /* load mode indicator */
+2:
+        swi     r11, r1, PT_MODE                /* store the mode */
+        lwi     r11, r0, PER_CPU(R11_SAVE)      /* reload r11 */
+        /* save them on stack */
+        swi     r2, r1, PT_R2
+        swi     r3, r1, PT_R3 /* r3: _always_ in clobber list; see unistd.h */
+        swi     r4, r1, PT_R4 /* r4: _always_ in clobber list; see unistd.h */
+        swi     r5, r1, PT_R5
+        swi     r6, r1, PT_R6
+        swi     r7, r1, PT_R7
+        swi     r8, r1, PT_R8
+        swi     r9, r1, PT_R9
+        swi     r10, r1, PT_R10
+        swi     r11, r1, PT_R11
+        /* r12: _always_ in clobber list; see unistd.h */
+        swi     r12, r1, PT_R12
+        swi     r13, r1, PT_R13
+        /* r14: _always_ in clobber list; see unistd.h */
+        swi     r14, r1, PT_R14
+        /* but we want to return to the next inst. */
+        addik   r14, r14, 0x4
+        swi     r14, r1, PT_PC          /* increment by 4 and store in pc */
+        swi     r15, r1, PT_R15
+        swi     r16, r1, PT_R16
+        swi     r17, r1, PT_R17
+        swi     r18, r1, PT_R18
+        swi     r19, r1, PT_R19
+        swi     r20, r1, PT_R20
+        swi     r21, r1, PT_R21
+        swi     r22, r1, PT_R22
+        swi     r23, r1, PT_R23
+        swi     r24, r1, PT_R24
+        swi     r25, r1, PT_R25
+        swi     r26, r1, PT_R26
+        swi     r27, r1, PT_R27
+        swi     r28, r1, PT_R28
+        swi     r29, r1, PT_R29
+        swi     r30, r1, PT_R30
+        swi     r31, r1, PT_R31
+
+        disable_irq
+        nop             /* make sure IE bit is in effect */
+        clear_bip       /* once IE is in effect it is safe to clear BIP */
+        nop
+
+        /* special purpose registers */
+        mfs     r11, rmsr
+        swi     r11, r1, PT_MSR
+        mfs     r11, rear
+        swi     r11, r1, PT_EAR
+        mfs     r11, resr
+        swi     r11, r1, PT_ESR
+        mfs     r11, rfsr
+        swi     r11, r1, PT_FSR
+        /* reload original stack pointer and save it */
+        lwi     r11, r0, PER_CPU(ENTRY_SP)
+        swi     r11, r1, PT_R1
+        /* update mode indicator we are in kernel mode */
+        addik   r11, r0, 1
+        swi     r11, r0, PER_CPU(KM)
+        /* restore r31 */
+        lwi     r31, r0, PER_CPU(CURRENT_SAVE)
+        /* re-enable interrupts now we are in kernel mode */
+        enable_irq
+
+        /* See if the system call number is valid. */
+        addi    r11, r12, -__NR_syscalls
+        bgei    r11, 1f                 /* return to user if not valid */
+        /* Figure out which function to use for this system call. */
+        /* Note Microblaze barrel shift is optional, so don't rely on it */
+        add     r12, r12, r12                   /* convert num -> ptr */
+        add     r12, r12, r12
+        lwi     r12, r12, sys_call_table        /* Get function pointer */
+        la      r15, r0, ret_to_user-8          /* set return address */
+        bra     r12                             /* Make the system call. */
+        bri     0                               /* won't reach here */
+1:
+        brid    ret_to_user                     /* jump to syscall epilogue */
+        addi    r3, r0, -ENOSYS                 /* set errno in delay slot */
+
+/*
+ * Debug traps are like a system call, but entered via brki r14, 0x60
+ * All we need to do is send the SIGTRAP signal to current, ptrace and do_signal
+ * will handle the rest
+ */
+ENTRY(_debug_exception)
+        swi     r1, r0, PER_CPU(ENTRY_SP)       /* save the current sp */
+        lwi     r1, r0, PER_CPU(CURRENT_SAVE)   /* get the saved current */
+        lwi     r1, r1, TS_THREAD_INFO          /* get the thread info */
+        addik   r1, r1, THREAD_SIZE - PT_SIZE   /* get the kernel stack */
+        swi     r11, r0, PER_CPU(R11_SAVE)      /* temporarily save r11 */
+        lwi     r11, r0, PER_CPU(KM)            /* load mode indicator */
+//save_context:
+        swi     r11, r1, PT_MODE        /* store the mode */
+        lwi     r11, r0, PER_CPU(R11_SAVE)      /* reload r11 */
+        /* save them on stack */
+        swi     r2, r1, PT_R2
+        swi     r3, r1, PT_R3 /* r3: _always_ in clobber list; see unistd.h */
+        swi     r4, r1, PT_R4 /* r4: _always_ in clobber list; see unistd.h */
+        swi     r5, r1, PT_R5
+        swi     r6, r1, PT_R6
+        swi     r7, r1, PT_R7
+        swi     r8, r1, PT_R8
+        swi     r9, r1, PT_R9
+        swi     r10, r1, PT_R10
+        swi     r11, r1, PT_R11
+        /* r12: _always_ in clobber list; see unistd.h */
+        swi     r12, r1, PT_R12
+        swi     r13, r1, PT_R13
+        /* r14: _always_ in clobber list; see unistd.h */
+        swi     r14, r1, PT_R14
+        swi     r14, r1, PT_PC /* Will return to interrupted instruction */
+        swi     r15, r1, PT_R15
+        swi     r16, r1, PT_R16
+        swi     r17, r1, PT_R17
+        swi     r18, r1, PT_R18
+        swi     r19, r1, PT_R19
+        swi     r20, r1, PT_R20
+        swi     r21, r1, PT_R21
+        swi     r22, r1, PT_R22
+        swi     r23, r1, PT_R23
+        swi     r24, r1, PT_R24
+        swi     r25, r1, PT_R25
+        swi     r26, r1, PT_R26
+        swi     r27, r1, PT_R27
+        swi     r28, r1, PT_R28
+        swi     r29, r1, PT_R29
+        swi     r30, r1, PT_R30
+        swi     r31, r1, PT_R31
+
+        disable_irq
+        nop             /* make sure IE bit is in effect */
+        clear_bip       /* once IE is in effect it is safe to clear BIP */
+        nop
+
+        /* special purpose registers */
+        mfs     r11, rmsr
+        swi     r11, r1, PT_MSR
+        mfs     r11, rear
+        swi     r11, r1, PT_EAR
+        mfs     r11, resr
+        swi     r11, r1, PT_ESR
+        mfs     r11, rfsr
+        swi     r11, r1, PT_FSR
+        /* reload original stack pointer and save it */
+        lwi     r11, r0, PER_CPU(ENTRY_SP)
+        swi     r11, r1, PT_R1
+        /* update mode indicator we are in kernel mode */
+        addik   r11, r0, 1
+        swi     r11, r0, PER_CPU(KM)
+        /* restore r31 */
+        lwi     r31, r0, PER_CPU(CURRENT_SAVE)
+        /* re-enable interrupts now we are in kernel mode */
+        enable_irq
+
+        addi    r5, r0, SIGTRAP                 /* sending the trap signal */
+        add     r6, r0, r31                     /* to current */
+        bralid  r15, send_sig
+        add     r7, r0, r0                      /* 3rd param zero */
+
+        /* Restore r3/r4 to work around how ret_to_user works */
+        lwi     r3, r1, PT_R3
+        lwi     r4, r1, PT_R4
+        bri     ret_to_user
+
+ENTRY(_break)
+        bri     0
+
+/* struct task_struct *_switch_to(struct thread_info *prev,
+                                        struct thread_info *next); */
+ENTRY(_switch_to)
+        /* prepare return value */
+        addk    r3, r0, r31
+
+        /* save registers in cpu_context */
+        /* use r11 and r12, volatile registers, as temp register */
+        addik   r11, r5, TI_CPU_CONTEXT
+        swi     r1, r11, CC_R1
+        swi     r2, r11, CC_R2
+        /* skip volatile registers.
+         * they are saved on stack when we jumped to _switch_to() */
+        /* dedicated registers */
+        swi     r13, r11, CC_R13
+        swi     r14, r11, CC_R14
+        swi     r15, r11, CC_R15
+        swi     r16, r11, CC_R16
+        swi     r17, r11, CC_R17
+        swi     r18, r11, CC_R18
+        /* save non-volatile registers */
+        swi     r19, r11, CC_R19
+        swi     r20, r11, CC_R20
+        swi     r21, r11, CC_R21
+        swi     r22, r11, CC_R22
+        swi     r23, r11, CC_R23
+        swi     r24, r11, CC_R24
+        swi     r25, r11, CC_R25
+        swi     r26, r11, CC_R26
+        swi     r27, r11, CC_R27
+        swi     r28, r11, CC_R28
+        swi     r29, r11, CC_R29
+        swi     r30, r11, CC_R30
+        /* special purpose registers */
+        mfs     r12, rmsr
+        swi     r12, r11, CC_MSR
+        mfs     r12, rear
+        swi     r12, r11, CC_EAR
+        mfs     r12, resr
+        swi     r12, r11, CC_ESR
+        mfs     r12, rfsr
+        swi     r12, r11, CC_FSR
+
+        /* update r31, the current */
+        lwi     r31, r6, TI_TASK
+        swi     r31, r0, PER_CPU(CURRENT_SAVE)
+
+        /* get new process' cpu context and restore */
+        addik   r11, r6, TI_CPU_CONTEXT
+
+        /* special purpose registers */
+        lwi     r12, r11, CC_FSR
+        mts     rfsr, r12
+        lwi     r12, r11, CC_ESR
+        mts     resr, r12
+        lwi     r12, r11, CC_EAR
+        mts     rear, r12
+        lwi     r12, r11, CC_MSR
+        mts     rmsr, r12
+        /* non-volatile registers */
+        lwi     r30, r11, CC_R30
+        lwi     r29, r11, CC_R29
+        lwi     r28, r11, CC_R28
+        lwi     r27, r11, CC_R27
+        lwi     r26, r11, CC_R26
+        lwi     r25, r11, CC_R25
+        lwi     r24, r11, CC_R24
+        lwi     r23, r11, CC_R23
+        lwi     r22, r11, CC_R22
+        lwi     r21, r11, CC_R21
+        lwi     r20, r11, CC_R20
+        lwi     r19, r11, CC_R19
+        /* dedicated registers */
+        lwi     r18, r11, CC_R18
+        lwi     r17, r11, CC_R17
+        lwi     r16, r11, CC_R16
+        lwi     r15, r11, CC_R15
+        lwi     r14, r11, CC_R14
+        lwi     r13, r11, CC_R13
+        /* skip volatile registers */
+        lwi     r2, r11, CC_R2
+        lwi     r1, r11, CC_R1
+
+        rtsd    r15, 8
+        nop
+
+ENTRY(ret_from_fork)
+        addk    r5, r0, r3
+        addk    r6, r0, r1
+        brlid   r15, schedule_tail
+        nop
+        swi     r31, r1, PT_R31         /* save r31 in user context. */
+                        /* will soon be restored to r31 in ret_to_user */
+        addk    r3, r0, r0
+        brid    ret_to_user
+        nop
+
+work_pending:
+        andi    r11, r19, _TIF_NEED_RESCHED
+        beqi    r11, 1f
+        bralid  r15, schedule
+        nop
+1:      andi    r11, r19, _TIF_SIGPENDING
+        beqi    r11, no_work_pending
+        addk    r5, r1, r0
+        addik   r7, r0, 1
+        bralid  r15, do_signal
+        addk    r6, r0, r0
+        bri     no_work_pending
+
+ENTRY(ret_to_user)
+        disable_irq
+
+        swi     r4, r1, PT_R4           /* return val */
+        swi     r3, r1, PT_R3           /* return val */
+
+        lwi     r6, r31, TS_THREAD_INFO /* get thread info */
+        lwi     r19, r6, TI_FLAGS /* get flags in thread info */
+        bnei    r19, work_pending /* do an extra work if any bits are set */
+no_work_pending:
+        disable_irq
+
+        /* save r31 */
+        swi     r31, r0, PER_CPU(CURRENT_SAVE)
+        /* save mode indicator */
+        lwi     r18, r1, PT_MODE
+        swi     r18, r0, PER_CPU(KM)
+//restore_context:
+        /* special purpose registers */
+        lwi     r18, r1, PT_FSR
+        mts     rfsr, r18
+        lwi     r18, r1, PT_ESR
+        mts     resr, r18
+        lwi     r18, r1, PT_EAR
+        mts     rear, r18
+        lwi     r18, r1, PT_MSR
+        mts     rmsr, r18
+
+        lwi     r31, r1, PT_R31
+        lwi     r30, r1, PT_R30
+        lwi     r29, r1, PT_R29
+        lwi     r28, r1, PT_R28
+        lwi     r27, r1, PT_R27
+        lwi     r26, r1, PT_R26
+        lwi     r25, r1, PT_R25
+        lwi     r24, r1, PT_R24
+        lwi     r23, r1, PT_R23
+        lwi     r22, r1, PT_R22
+        lwi     r21, r1, PT_R21
+        lwi     r20, r1, PT_R20
+        lwi     r19, r1, PT_R19
+        lwi     r18, r1, PT_R18
+        lwi     r17, r1, PT_R17
+        lwi     r16, r1, PT_R16
+        lwi     r15, r1, PT_R15
+        lwi     r14, r1, PT_PC
+        lwi     r13, r1, PT_R13
+        lwi     r12, r1, PT_R12
+        lwi     r11, r1, PT_R11
+        lwi     r10, r1, PT_R10
+        lwi     r9, r1, PT_R9
+        lwi     r8, r1, PT_R8
+        lwi     r7, r1, PT_R7
+        lwi     r6, r1, PT_R6
+        lwi     r5, r1, PT_R5
+        lwi     r4, r1, PT_R4           /* return val */
+        lwi     r3, r1, PT_R3           /* return val */
+        lwi     r2, r1, PT_R2
+        lwi     r1, r1, PT_R1
+
+        rtid    r14, 0
+        nop
+
+sys_vfork_wrapper:
+        brid    sys_vfork
+        addk    r5, r1, r0
+
+sys_clone_wrapper:
+        brid    sys_clone
+        addk    r7, r1, r0
+
+sys_execve_wrapper:
+        brid    sys_execve
+        addk    r8, r1, r0
+
+sys_sigreturn_wrapper:
+        brid    sys_sigreturn
+        addk    r5, r1, r0
+
+sys_rt_sigreturn_wrapper:
+        brid    sys_rt_sigreturn
+        addk    r5, r1, r0
+
+sys_sigsuspend_wrapper:
+        brid    sys_rt_sigsuspend
+        addk    r6, r1, r0
+
+sys_rt_sigsuspend_wrapper:
+        brid    sys_rt_sigsuspend
+        addk    r7, r1, r0
+
+        /* Interrupt vector table */
+        .section        .init.ivt, "ax"
+        .org 0x0
+        brai    _reset
+        brai    _user_exception
+        brai    _interrupt
+        brai    _break
+        brai    _hw_exception_handler
+        .org 0x60
+        brai    _debug_exception
+
+.section .rodata,"a"
+#include "syscall_table.S"
+
+syscall_table_size=(.-sys_call_table)
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
new file mode 100644
index 000000000000..4a8a4064c7ee
--- /dev/null
+++ b/arch/microblaze/kernel/exceptions.c
@@ -0,0 +1,124 @@
+/*
+ * HW exception handling
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 PetaLogix
+ *
+ * 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.
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kallsyms.h>
+#include <linux/module.h>
+
+#include <asm/exceptions.h>
+#include <asm/entry.h>          /* For KM CPU var */
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/ptrace.h>
+#include <asm/current.h>
+
+#define MICROBLAZE_ILL_OPCODE_EXCEPTION 0x02
+#define MICROBLAZE_IBUS_EXCEPTION       0x03
+#define MICROBLAZE_DBUS_EXCEPTION       0x04
+#define MICROBLAZE_DIV_ZERO_EXCEPTION   0x05
+#define MICROBLAZE_FPU_EXCEPTION        0x06
+#define MICROBLAZE_PRIVILEG_EXCEPTION   0x07
+
+static DEFINE_SPINLOCK(die_lock);
+
+void die(const char *str, struct pt_regs *fp, long err)
+{
+        console_verbose();
+        spin_lock_irq(&die_lock);
+        printk(KERN_WARNING "Oops: %s, sig: %ld\n", str, err);
+        show_regs(fp);
+        spin_unlock_irq(&die_lock);
+        /* do_exit() should take care of panic'ing from an interrupt
+         * context so we don't handle it here
+         */
+        do_exit(err);
+}
+
+void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
+{
+        siginfo_t info;
+
+        if (kernel_mode(regs)) {
+                debugger(regs);
+                die("Exception in kernel mode", regs, signr);
+        }
+        info.si_signo = signr;
+        info.si_errno = 0;
+        info.si_code = code;
+        info.si_addr = (void __user *) addr;
+        force_sig_info(signr, &info, current);
+}
+
+asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
+                                                        int fsr, int addr)
+{
+#if 0
+        printk(KERN_WARNING "Exception %02x in %s mode, FSR=%08x PC=%08x ESR=%08x\n",
+                        type, user_mode(regs) ? "user" : "kernel", fsr,
+                        (unsigned int) regs->pc, (unsigned int) regs->esr);
+#endif
+
+        switch (type & 0x1F) {
+        case MICROBLAZE_ILL_OPCODE_EXCEPTION:
+                _exception(SIGILL, regs, ILL_ILLOPC, addr);
+                break;
+        case MICROBLAZE_IBUS_EXCEPTION:
+                if (user_mode(regs)) {
+                        printk(KERN_WARNING "Instruction bus error exception in user mode.\n");
+                        _exception(SIGBUS, regs, BUS_ADRERR, addr);
+                        return;
+                }
+                printk(KERN_WARNING "Instruction bus error exception in kernel mode.\n");
+                die("bus exception", regs, SIGBUS);
+                break;
+        case MICROBLAZE_DBUS_EXCEPTION:
+                if (user_mode(regs)) {
+                        printk(KERN_WARNING "Data bus error exception in user mode.\n");
+                        _exception(SIGBUS, regs, BUS_ADRERR, addr);
+                        return;
+                }
+                printk(KERN_WARNING "Data bus error exception in kernel mode.\n");
+                die("bus exception", regs, SIGBUS);
+                break;
+        case MICROBLAZE_DIV_ZERO_EXCEPTION:
+                printk(KERN_WARNING "Divide by zero exception\n");
+                _exception(SIGILL, regs, ILL_ILLOPC, addr);
+                break;
+
+        case MICROBLAZE_FPU_EXCEPTION:
+                /* IEEE FP exception */
+                /* I removed fsr variable and use code var for storing fsr */
+                if (fsr & FSR_IO)
+                        fsr = FPE_FLTINV;
+                else if (fsr & FSR_OF)
+                        fsr = FPE_FLTOVF;
+                else if (fsr & FSR_UF)
+                        fsr = FPE_FLTUND;
+                else if (fsr & FSR_DZ)
+                        fsr = FPE_FLTDIV;
+                else if (fsr & FSR_DO)
+                        fsr = FPE_FLTRES;
+                _exception(SIGFPE, regs, fsr, addr);
+                break;
+
+        default:
+                printk(KERN_WARNING "Unexpected exception %02x "
+                        "PC=%08x in %s mode\n", type, (unsigned int) addr,
+                        kernel_mode(regs) ? "kernel" : "user");
+        }
+        return;
+}
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
new file mode 100644
index 000000000000..319dc35fc922
--- /dev/null
+++ b/arch/microblaze/kernel/head.S
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+
+        .text
+ENTRY(_start)
+        mfs     r1, rmsr
+        andi    r1, r1, ~2
+        mts     rmsr, r1
+
+/* save fdt to kernel location */
+/* r7 stores pointer to fdt blob */
+        beqi    r7, no_fdt_arg
+        or      r11, r0, r0 /* incremment */
+        ori     r4, r0, TOPHYS(_fdt_start) /* save bram context */
+        ori     r3, r0, (0x4000 - 4)
+_copy_fdt:
+        lw      r12, r7, r11 /* r12 = r7 + r11 */
+        sw      r12, r4, r11 /* addr[r4 + r11] = r12 */
+        addik   r11, r11, 4 /* increment counting */
+        bgtid   r3, _copy_fdt /* loop for all entries */
+        addik   r3, r3, -4 /* descrement loop */
+no_fdt_arg:
+
+        /* Initialize small data anchors */
+        la      r13, r0, _KERNEL_SDA_BASE_
+        la      r2, r0, _KERNEL_SDA2_BASE_
+
+        /* Initialize stack pointer */
+        la      r1, r0, init_thread_union + THREAD_SIZE - 4
+
+        /* Initialize r31 with current task address */
+        la      r31, r0, init_task
+
+        /*
+         * Call platform dependent initialize function.
+         * Please see $(ARCH)/mach-$(SUBARCH)/setup.c for
+         * the function.
+         */
+        la      r8, r0, machine_early_init
+        brald   r15, r8
+        nop
+
+        la      r15, r0, machine_halt
+        braid   start_kernel
+        nop
diff --git a/arch/microblaze/kernel/heartbeat.c b/arch/microblaze/kernel/heartbeat.c
new file mode 100644
index 000000000000..1bdf20222b92
--- /dev/null
+++ b/arch/microblaze/kernel/heartbeat.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/sched.h>
+#include <linux/io.h>
+
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/prom.h>
+
+static unsigned int base_addr;
+
+void heartbeat(void)
+{
+        static unsigned int cnt, period, dist;
+
+        if (base_addr) {
+                if (cnt == 0 || cnt == dist)
+                        out_be32(base_addr, 1);
+                else if (cnt == 7 || cnt == dist + 7)
+                        out_be32(base_addr, 0);
+
+                if (++cnt > period) {
+                        cnt = 0;
+                        /*
+                         * The hyperbolic function below modifies the heartbeat
+                         * period length in dependency of the current (5min)
+                         * load. It goes through the points f(0)=126, f(1)=86,
+                         * f(5)=51, f(inf)->30.
+                         */
+                        period = ((672 << FSHIFT) / (5 * avenrun[0] +
+                                                (7 << FSHIFT))) + 30;
+                        dist = period / 4;
+                }
+        }
+}
+
+void setup_heartbeat(void)
+{
+        struct device_node *gpio = NULL;
+        int j;
+        char *gpio_list[] = {
+                                "xlnx,xps-gpio-1.00.a",
+                                "xlnx,opb-gpio-1.00.a",
+                                NULL
+                        };
+
+        for (j = 0; gpio_list[j] != NULL; j++) {
+                gpio = of_find_compatible_node(NULL, NULL, gpio_list[j]);
+                if (gpio)
+                        break;
+        }
+
+        base_addr = *(int *) of_get_property(gpio, "reg", NULL);
+        base_addr = (unsigned long) ioremap(base_addr, PAGE_SIZE);
+        printk(KERN_NOTICE "Heartbeat GPIO at 0x%x\n", base_addr);
+
+        if (*(int *) of_get_property(gpio, "xlnx,is-bidir", NULL))
+                out_be32(base_addr + 4, 0); /* GPIO is configured as output */
+}
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
new file mode 100644
index 000000000000..cf9486d99838
--- /dev/null
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -0,0 +1,458 @@
+/*
+ * Exception handling for Microblaze
+ *
+ * Rewriten interrupt handling
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ *
+ * uClinux customisation (C) 2005 John Williams
+ *
+ * MMU code derived from arch/ppc/kernel/head_4xx.S:
+ *      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
+ *
+ * Original code
+ * Copyright (C) 2004 Xilinx, 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.
+ */
+
+/*
+ * Here are the handlers which don't require enabling translation
+ * and calling other kernel code thus we can keep their design very simple
+ * and do all processing in real mode. All what they need is a valid current
+ * (that is an issue for the CONFIG_REGISTER_TASK_PTR case)
+ * This handlers use r3,r4,r5,r6 and optionally r[current] to work therefore
+ * these registers are saved/restored
+ * The handlers which require translation are in entry.S --KAA
+ *
+ * Microblaze HW Exception Handler
+ * - Non self-modifying exception handler for the following exception conditions
+ *   - Unalignment
+ *   - Instruction bus error
+ *   - Data bus error
+ *   - Illegal instruction opcode
+ *   - Divide-by-zero
+ *
+ * Note we disable interrupts during exception handling, otherwise we will
+ * possibly get multiple re-entrancy if interrupt handles themselves cause
+ * exceptions. JW
+ */
+
+#include <asm/exceptions.h>
+#include <asm/unistd.h>
+#include <asm/page.h>
+
+#include <asm/entry.h>
+#include <asm/current.h>
+#include <linux/linkage.h>
+
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/asm-offsets.h>
+
+/* Helpful Macros */
+#define EX_HANDLER_STACK_SIZ    (4*19)
+#define NUM_TO_REG(num)         r ## num
+
+#define LWREG_NOP                       \
+        bri     ex_handler_unhandled;   \
+        nop;
+
+#define SWREG_NOP                       \
+        bri     ex_handler_unhandled;   \
+        nop;
+
+/* FIXME this is weird - for noMMU kernel is not possible to use brid
+ * instruction which can shorten executed time
+ */
+
+/* r3 is the source */
+#define R3_TO_LWREG_V(regnum)                           \
+        swi     r3, r1, 4 * regnum;                             \
+        bri     ex_handler_done;
+
+/* r3 is the source */
+#define R3_TO_LWREG(regnum)                             \
+        or      NUM_TO_REG (regnum), r0, r3;            \
+        bri     ex_handler_done;
+
+/* r3 is the target */
+#define SWREG_TO_R3_V(regnum)                           \
+        lwi     r3, r1, 4 * regnum;                             \
+        bri     ex_sw_tail;
+
+/* r3 is the target */
+#define SWREG_TO_R3(regnum)                             \
+        or      r3, r0, NUM_TO_REG (regnum);            \
+        bri     ex_sw_tail;
+
+.extern other_exception_handler /* Defined in exception.c */
+
+/*
+ * hw_exception_handler - Handler for exceptions
+ *
+ * Exception handler notes:
+ * - Handles all exceptions
+ * - Does not handle unaligned exceptions during load into r17, r1, r0.
+ * - Does not handle unaligned exceptions during store from r17 (cannot be
+ *   done) and r1 (slows down common case)
+ *
+ *  Relevant register structures
+ *
+ *  EAR - |----|----|----|----|----|----|----|----|
+ *      - <  ##   32 bit faulting address     ##  >
+ *
+ *  ESR - |----|----|----|----|----| - | - |-----|-----|
+ *      -                            W   S   REG   EXC
+ *
+ *
+ * STACK FRAME STRUCTURE (for NO_MMU)
+ * ---------------------------------
+ *
+ *      +-------------+         + 0
+ *      |     MSR     |
+ *      +-------------+         + 4
+ *      |     r1      |
+ *      |      .      |
+ *      |      .      |
+ *      |      .      |
+ *      |      .      |
+ *      |     r18     |
+ *      +-------------+         + 76
+ *      |      .      |
+ *      |      .      |
+ *
+ * NO_MMU kernel use the same r0_ram pointed space - look to vmlinux.lds.S
+ * which is used for storing register values - old style was, that value were
+ * stored in stack but in case of failure you lost information about register.
+ * Currently you can see register value in memory in specific place.
+ * In compare to with previous solution the speed should be the same.
+ *
+ * MMU exception handler has different handling compare to no MMU kernel.
+ * Exception handler use jump table for directing of what happen. For MMU kernel
+ * is this approach better because MMU relate exception are handled by asm code
+ * in this file. In compare to with MMU expect of unaligned exception
+ * is everything handled by C code.
+ */
+
+/*
+ * every of these handlers is entered having R3/4/5/6/11/current saved on stack
+ * and clobbered so care should be taken to restore them if someone is going to
+ * return from exception
+ */
+
+/* wrappers to restore state before coming to entry.S */
+
+.global _hw_exception_handler
+.section .text
+.align 4
+.ent _hw_exception_handler
+_hw_exception_handler:
+        addik   r1, r1, -(EX_HANDLER_STACK_SIZ); /* Create stack frame */
+        swi     r3, r1, PT_R3
+        swi     r4, r1, PT_R4
+        swi     r5, r1, PT_R5
+        swi     r6, r1, PT_R6
+
+        mfs     r5, rmsr;
+        nop
+        swi     r5, r1, 0;
+        mfs     r4, rbtr        /* Save BTR before jumping to handler */
+        nop
+        mfs     r3, resr
+        nop
+
+        andi    r5, r3, 0x1000;         /* Check ESR[DS] */
+        beqi    r5, not_in_delay_slot;  /* Branch if ESR[DS] not set */
+        mfs     r17, rbtr;      /* ESR[DS] set - return address in BTR */
+        nop
+not_in_delay_slot:
+        swi     r17, r1, PT_R17
+
+        andi    r5, r3, 0x1F;           /* Extract ESR[EXC] */
+
+        /* Exceptions enabled here. This will allow nested exceptions */
+        mfs     r6, rmsr;
+        nop
+        swi     r6, r1, 0; /* RMSR_OFFSET */
+        ori     r6, r6, 0x100; /* Turn ON the EE bit */
+        andi    r6, r6, ~2; /* Disable interrupts */
+        mts     rmsr, r6;
+        nop
+
+        xori    r6, r5, 1; /* 00001 = Unaligned Exception */
+        /* Jump to unalignment exception handler */
+        beqi    r6, handle_unaligned_ex;
+
+handle_other_ex: /* Handle Other exceptions here */
+        /* Save other volatiles before we make procedure calls below */
+        swi     r7, r1, PT_R7
+        swi     r8, r1, PT_R8
+        swi     r9, r1, PT_R9
+        swi     r10, r1, PT_R10
+        swi     r11, r1, PT_R11
+        swi     r12, r1, PT_R12
+        swi     r14, r1, PT_R14
+        swi     r15, r1, PT_R15
+        swi     r18, r1, PT_R18
+
+        or      r5, r1, r0
+        andi    r6, r3, 0x1F; /* Load ESR[EC] */
+        lwi     r7, r0, PER_CPU(KM) /* MS: saving current kernel mode to regs */
+        swi     r7, r1, PT_MODE
+        mfs     r7, rfsr
+        nop
+        addk    r8, r17, r0; /* Load exception address */
+        bralid  r15, full_exception; /* Branch to the handler */
+        nop;
+
+        /*
+         * Trigger execution of the signal handler by enabling
+         * interrupts and calling an invalid syscall.
+         */
+        mfs     r5, rmsr;
+        nop
+        ori     r5, r5, 2;
+        mts     rmsr, r5; /* enable interrupt */
+        nop
+        addi    r12, r0, __NR_syscalls;
+        brki    r14, 0x08;
+        mfs     r5, rmsr; /* disable interrupt */
+        nop
+        andi    r5, r5, ~2;
+        mts     rmsr, r5;
+        nop
+
+        lwi     r7, r1, PT_R7
+        lwi     r8, r1, PT_R8
+        lwi     r9, r1, PT_R9
+        lwi     r10, r1, PT_R10
+        lwi     r11, r1, PT_R11
+        lwi     r12, r1, PT_R12
+        lwi     r14, r1, PT_R14
+        lwi     r15, r1, PT_R15
+        lwi     r18, r1, PT_R18
+
+        bri     ex_handler_done; /* Complete exception handling */
+
+/* 0x01 - Unaligned data access exception
+ * This occurs when a word access is not aligned on a word boundary,
+ * or when a 16-bit access is not aligned on a 16-bit boundary.
+ * This handler perform the access, and returns, except for MMU when
+ * the unaligned address is last on a 4k page or the physical address is
+ * not found in the page table, in which case unaligned_data_trap is called.
+ */
+handle_unaligned_ex:
+        /* Working registers already saved: R3, R4, R5, R6
+         *  R3 = ESR
+         *  R4 = BTR
+         */
+        mfs     r4, rear;
+        nop
+
+        andi    r6, r3, 0x3E0; /* Mask and extract the register operand */
+        srl     r6, r6; /* r6 >> 5 */
+        srl     r6, r6;
+        srl     r6, r6;
+        srl     r6, r6;
+        srl     r6, r6;
+        /* Store the register operand in a temporary location */
+        sbi     r6, r0, TOPHYS(ex_reg_op);
+
+        andi    r6, r3, 0x400; /* Extract ESR[S] */
+        bnei    r6, ex_sw;
+ex_lw:
+        andi    r6, r3, 0x800; /* Extract ESR[W] */
+        beqi    r6, ex_lhw;
+        lbui    r5, r4, 0; /* Exception address in r4 */
+        /* Load a word, byte-by-byte from destination address
+                and save it in tmp space */
+        sbi     r5, r0, TOPHYS(ex_tmp_data_loc_0);
+        lbui    r5, r4, 1;
+        sbi     r5, r0, TOPHYS(ex_tmp_data_loc_1);
+        lbui    r5, r4, 2;
+        sbi     r5, r0, TOPHYS(ex_tmp_data_loc_2);
+        lbui    r5, r4, 3;
+        sbi     r5, r0, TOPHYS(ex_tmp_data_loc_3);
+        /* Get the destination register value into r3 */
+        lwi     r3, r0, TOPHYS(ex_tmp_data_loc_0);
+        bri     ex_lw_tail;
+ex_lhw:
+        lbui    r5, r4, 0; /* Exception address in r4 */
+        /* Load a half-word, byte-by-byte from destination
+                address and save it in tmp space */
+        sbi     r5, r0, TOPHYS(ex_tmp_data_loc_0);
+        lbui    r5, r4, 1;
+        sbi     r5, r0, TOPHYS(ex_tmp_data_loc_1);
+        /* Get the destination register value into r3 */
+        lhui    r3, r0, TOPHYS(ex_tmp_data_loc_0);
+ex_lw_tail:
+        /* Get the destination register number into r5 */
+        lbui    r5, r0, TOPHYS(ex_reg_op);
+        /* Form load_word jump table offset (lw_table + (8 * regnum)) */
+        la      r6, r0, TOPHYS(lw_table);
+        addk    r5, r5, r5;
+        addk    r5, r5, r5;
+        addk    r5, r5, r5;
+        addk    r5, r5, r6;
+        bra     r5;
+ex_lw_end: /* Exception handling of load word, ends */
+ex_sw:
+        /* Get the destination register number into r5 */
+        lbui    r5, r0, TOPHYS(ex_reg_op);
+        /* Form store_word jump table offset (sw_table + (8 * regnum)) */
+        la      r6, r0, TOPHYS(sw_table);
+        add     r5, r5, r5;
+        add     r5, r5, r5;
+        add     r5, r5, r5;
+        add     r5, r5, r6;
+        bra     r5;
+ex_sw_tail:
+        mfs     r6, resr;
+        nop
+        andi    r6, r6, 0x800; /* Extract ESR[W] */
+        beqi    r6, ex_shw;
+        /* Get the word - delay slot */
+        swi     r3, r0, TOPHYS(ex_tmp_data_loc_0);
+        /* Store the word, byte-by-byte into destination address */
+        lbui    r3, r0, TOPHYS(ex_tmp_data_loc_0);
+        sbi     r3, r4, 0;
+        lbui    r3, r0, TOPHYS(ex_tmp_data_loc_1);
+        sbi     r3, r4, 1;
+        lbui    r3, r0, TOPHYS(ex_tmp_data_loc_2);
+        sbi     r3, r4, 2;
+        lbui    r3, r0, TOPHYS(ex_tmp_data_loc_3);
+        sbi     r3, r4, 3;
+        bri     ex_handler_done;
+
+ex_shw:
+        /* Store the lower half-word, byte-by-byte into destination address */
+        swi     r3, r0, TOPHYS(ex_tmp_data_loc_0);
+        lbui    r3, r0, TOPHYS(ex_tmp_data_loc_2);
+        sbi     r3, r4, 0;
+        lbui    r3, r0, TOPHYS(ex_tmp_data_loc_3);
+        sbi     r3, r4, 1;
+ex_sw_end: /* Exception handling of store word, ends. */
+
+ex_handler_done:
+        lwi     r5, r1, 0 /* RMSR */
+        mts     rmsr, r5
+        nop
+        lwi     r3, r1, PT_R3
+        lwi     r4, r1, PT_R4
+        lwi     r5, r1, PT_R5
+        lwi     r6, r1, PT_R6
+        lwi     r17, r1, PT_R17
+
+        rted    r17, 0
+        addik   r1, r1, (EX_HANDLER_STACK_SIZ); /* Restore stack frame */
+
+.end _hw_exception_handler
+
+ex_handler_unhandled:
+/* FIXME add handle function for unhandled exception - dump register */
+        bri 0
+
+.section .text
+.align 4
+lw_table:
+lw_r0:          R3_TO_LWREG     (0);
+lw_r1:          LWREG_NOP;
+lw_r2:          R3_TO_LWREG     (2);
+lw_r3:          R3_TO_LWREG_V   (3);
+lw_r4:          R3_TO_LWREG_V   (4);
+lw_r5:          R3_TO_LWREG_V   (5);
+lw_r6:          R3_TO_LWREG_V   (6);
+lw_r7:          R3_TO_LWREG     (7);
+lw_r8:          R3_TO_LWREG     (8);
+lw_r9:          R3_TO_LWREG     (9);
+lw_r10:         R3_TO_LWREG     (10);
+lw_r11:         R3_TO_LWREG     (11);
+lw_r12:         R3_TO_LWREG     (12);
+lw_r13:         R3_TO_LWREG     (13);
+lw_r14:         R3_TO_LWREG     (14);
+lw_r15:         R3_TO_LWREG     (15);
+lw_r16:         R3_TO_LWREG     (16);
+lw_r17:         LWREG_NOP;
+lw_r18:         R3_TO_LWREG     (18);
+lw_r19:         R3_TO_LWREG     (19);
+lw_r20:         R3_TO_LWREG     (20);
+lw_r21:         R3_TO_LWREG     (21);
+lw_r22:         R3_TO_LWREG     (22);
+lw_r23:         R3_TO_LWREG     (23);
+lw_r24:         R3_TO_LWREG     (24);
+lw_r25:         R3_TO_LWREG     (25);
+lw_r26:         R3_TO_LWREG     (26);
+lw_r27:         R3_TO_LWREG     (27);
+lw_r28:         R3_TO_LWREG     (28);
+lw_r29:         R3_TO_LWREG     (29);
+lw_r30:         R3_TO_LWREG     (30);
+lw_r31:         R3_TO_LWREG     (31);
+
+sw_table:
+sw_r0:          SWREG_TO_R3     (0);
+sw_r1:          SWREG_NOP;
+sw_r2:          SWREG_TO_R3     (2);
+sw_r3:          SWREG_TO_R3_V   (3);
+sw_r4:          SWREG_TO_R3_V   (4);
+sw_r5:          SWREG_TO_R3_V   (5);
+sw_r6:          SWREG_TO_R3_V   (6);
+sw_r7:          SWREG_TO_R3     (7);
+sw_r8:          SWREG_TO_R3     (8);
+sw_r9:          SWREG_TO_R3     (9);
+sw_r10:         SWREG_TO_R3     (10);
+sw_r11:         SWREG_TO_R3     (11);
+sw_r12:         SWREG_TO_R3     (12);
+sw_r13:         SWREG_TO_R3     (13);
+sw_r14:         SWREG_TO_R3     (14);
+sw_r15:         SWREG_TO_R3     (15);
+sw_r16:         SWREG_TO_R3     (16);
+sw_r17:         SWREG_NOP;
+sw_r18:         SWREG_TO_R3     (18);
+sw_r19:         SWREG_TO_R3     (19);
+sw_r20:         SWREG_TO_R3     (20);
+sw_r21:         SWREG_TO_R3     (21);
+sw_r22:         SWREG_TO_R3     (22);
+sw_r23:         SWREG_TO_R3     (23);
+sw_r24:         SWREG_TO_R3     (24);
+sw_r25:         SWREG_TO_R3     (25);
+sw_r26:         SWREG_TO_R3     (26);
+sw_r27:         SWREG_TO_R3     (27);
+sw_r28:         SWREG_TO_R3     (28);
+sw_r29:         SWREG_TO_R3     (29);
+sw_r30:         SWREG_TO_R3     (30);
+sw_r31:         SWREG_TO_R3     (31);
+
+/* Temporary data structures used in the handler */
+.section .data
+.align 4
+ex_tmp_data_loc_0:
+        .byte 0
+ex_tmp_data_loc_1:
+        .byte 0
+ex_tmp_data_loc_2:
+        .byte 0
+ex_tmp_data_loc_3:
+        .byte 0
+ex_reg_op:
+        .byte 0
diff --git a/arch/microblaze/kernel/init_task.c b/arch/microblaze/kernel/init_task.c
new file mode 100644
index 000000000000..48eb9fb255fa
--- /dev/null
+++ b/arch/microblaze/kernel/init_task.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init_task.h>
+#include <linux/fs.h>
+#include <linux/mqueue.h>
+
+#include <asm/pgtable.h>
+
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct mm_struct init_mm = INIT_MM(init_mm);
+EXPORT_SYMBOL(init_mm);
+
+union thread_union init_thread_union
+        __attribute__((__section__(".data.init_task"))) =
+{ INIT_THREAD_INFO(init_task) };
+
+struct task_struct init_task = INIT_TASK(init_task);
+EXPORT_SYMBOL(init_task);
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
new file mode 100644
index 000000000000..a69d3e3c2fd4
--- /dev/null
+++ b/arch/microblaze/kernel/intc.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/page.h>
+#include <linux/io.h>
+
+#include <asm/prom.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_SELFMOD_INTC
+#include <asm/selfmod.h>
+#define INTC_BASE       BARRIER_BASE_ADDR
+#else
+static unsigned int intc_baseaddr;
+#define INTC_BASE       intc_baseaddr
+#endif
+
+unsigned int nr_irq;
+
+/* No one else should require these constants, so define them locally here. */
+#define ISR 0x00                        /* Interrupt Status Register */
+#define IPR 0x04                        /* Interrupt Pending Register */
+#define IER 0x08                        /* Interrupt Enable Register */
+#define IAR 0x0c                        /* Interrupt Acknowledge Register */
+#define SIE 0x10                        /* Set Interrupt Enable bits */
+#define CIE 0x14                        /* Clear Interrupt Enable bits */
+#define IVR 0x18                        /* Interrupt Vector Register */
+#define MER 0x1c                        /* Master Enable Register */
+
+#define MER_ME (1<<0)
+#define MER_HIE (1<<1)
+
+static void intc_enable_or_unmask(unsigned int irq)
+{
+        pr_debug("enable_or_unmask: %d\n", irq);
+        out_be32(INTC_BASE + SIE, 1 << irq);
+}
+
+static void intc_disable_or_mask(unsigned int irq)
+{
+        pr_debug("disable: %d\n", irq);
+        out_be32(INTC_BASE + CIE, 1 << irq);
+}
+
+static void intc_ack(unsigned int irq)
+{
+        pr_debug("ack: %d\n", irq);
+        out_be32(INTC_BASE + IAR, 1 << irq);
+}
+
+static void intc_mask_ack(unsigned int irq)
+{
+        unsigned long mask = 1 << irq;
+        pr_debug("disable_and_ack: %d\n", irq);
+        out_be32(INTC_BASE + CIE, mask);
+        out_be32(INTC_BASE + IAR, mask);
+}
+
+static void intc_end(unsigned int irq)
+{
+        unsigned long mask = 1 << irq;
+        pr_debug("end: %d\n", irq);
+        if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
+                out_be32(INTC_BASE + SIE, mask);
+                /* ack level sensitive intr */
+                if (irq_desc[irq].status & IRQ_LEVEL)
+                        out_be32(INTC_BASE + IAR, mask);
+        }
+}
+
+static struct irq_chip intc_dev = {
+        .name = "Xilinx INTC",
+        .unmask = intc_enable_or_unmask,
+        .mask = intc_disable_or_mask,
+        .ack = intc_ack,
+        .mask_ack = intc_mask_ack,
+        .end = intc_end,
+};
+
+unsigned int get_irq(struct pt_regs *regs)
+{
+        int irq;
+
+        /*
+         * NOTE: This function is the one that needs to be improved in
+         * order to handle multiple interrupt controllers. It currently
+         * is hardcoded to check for interrupts only on the first INTC.
+         */
+        irq = in_be32(INTC_BASE + IVR);
+        pr_debug("get_irq: %d\n", irq);
+
+        return irq;
+}
+
+void __init init_IRQ(void)
+{
+        u32 i, j, intr_type;
+        struct device_node *intc = NULL;
+#ifdef CONFIG_SELFMOD_INTC
+        unsigned int intc_baseaddr = 0;
+        static int arr_func[] = {
+                                (int)&get_irq,
+                                (int)&intc_enable_or_unmask,
+                                (int)&intc_disable_or_mask,
+                                (int)&intc_mask_ack,
+                                (int)&intc_ack,
+                                (int)&intc_end,
+                                0
+                        };
+#endif
+        static char *intc_list[] = {
+                                "xlnx,xps-intc-1.00.a",
+                                "xlnx,opb-intc-1.00.c",
+                                "xlnx,opb-intc-1.00.b",
+                                "xlnx,opb-intc-1.00.a",
+                                NULL
+                        };
+
+        for (j = 0; intc_list[j] != NULL; j++) {
+                intc = of_find_compatible_node(NULL, NULL, intc_list[j]);
+                if (intc)
+                        break;
+        }
+
+        intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL);
+        intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
+        nr_irq = *(int *) of_get_property(intc, "xlnx,num-intr-inputs", NULL);
+
+        intr_type =
+                *(int *) of_get_property(intc, "xlnx,kind-of-intr", NULL);
+        if (intr_type >= (1 << nr_irq))
+                printk(KERN_INFO " ERROR: Mishmash in king-of-intr param\n");
+
+#ifdef CONFIG_SELFMOD_INTC
+        selfmod_function((int *) arr_func, intc_baseaddr);
+#endif
+        printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
+                intc_list[j], intc_baseaddr, nr_irq, intr_type);
+
+        /*
+         * Disable all external interrupts until they are
+         * explicity requested.
+         */
+        out_be32(intc_baseaddr + IER, 0);
+
+        /* Acknowledge any pending interrupts just in case. */
+        out_be32(intc_baseaddr + IAR, 0xffffffff);
+
+        /* Turn on the Master Enable. */
+        out_be32(intc_baseaddr + MER, MER_HIE | MER_ME);
+
+        for (i = 0; i < nr_irq; ++i) {
+                if (intr_type & (0x00000001 << i)) {
+                        set_irq_chip_and_handler_name(i, &intc_dev,
+                                handle_edge_irq, intc_dev.name);
+                        irq_desc[i].status &= ~IRQ_LEVEL;
+                } else {
+                        set_irq_chip_and_handler_name(i, &intc_dev,
+                                handle_level_irq, intc_dev.name);
+                        irq_desc[i].status |= IRQ_LEVEL;
+                }
+        }
+}
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
new file mode 100644
index 000000000000..f688ee93e3b9
--- /dev/null
+++ b/arch/microblaze/kernel/irq.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/hardirq.h>
+#include <linux/interrupt.h>
+#include <linux/irqflags.h>
+#include <linux/seq_file.h>
+#include <linux/kernel_stat.h>
+#include <linux/irq.h>
+
+#include <asm/prom.h>
+
+unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
+{
+        struct of_irq oirq;
+
+        if (of_irq_map_one(dev, index, &oirq))
+                return NO_IRQ;
+
+        return oirq.specifier[0];
+}
+EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
+
+/*
+ * 'what should we do if we get a hw irq event on an illegal vector'.
+ * each architecture has to answer this themselves.
+ */
+void ack_bad_irq(unsigned int irq)
+{
+        printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
+}
+
+static u32 concurrent_irq;
+
+void do_IRQ(struct pt_regs *regs)
+{
+        unsigned int irq;
+        struct pt_regs *old_regs = set_irq_regs(regs);
+
+        irq_enter();
+        irq = get_irq(regs);
+next_irq:
+        BUG_ON(irq == -1U);
+        generic_handle_irq(irq);
+
+        irq = get_irq(regs);
+        if (irq != -1U) {
+                pr_debug("next irq: %d\n", irq);
+                ++concurrent_irq;
+                goto next_irq;
+        }
+
+        irq_exit();
+        set_irq_regs(old_regs);
+}
+
+int show_interrupts(struct seq_file *p, void *v)
+{
+        int i = *(loff_t *) v, j;
+        struct irqaction *action;
+        unsigned long flags;
+
+        if (i == 0) {
+                seq_printf(p, "         ");
+                for_each_online_cpu(j)
+                        seq_printf(p, "CPU%-8d", j);
+                seq_putc(p, '\n');
+        }
+
+        if (i < nr_irq) {
+                spin_lock_irqsave(&irq_desc[i].lock, flags);
+                action = irq_desc[i].action;
+                if (!action)
+                        goto skip;
+                seq_printf(p, "%3d: ", i);
+#ifndef CONFIG_SMP
+                seq_printf(p, "%10u ", kstat_irqs(i));
+#else
+                for_each_online_cpu(j)
+                        seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+#endif
+                seq_printf(p, " %8s", irq_desc[i].status &
+                                        IRQ_LEVEL ? "level" : "edge");
+                seq_printf(p, " %8s", irq_desc[i].chip->name);
+                seq_printf(p, "  %s", action->name);
+
+                for (action = action->next; action; action = action->next)
+                        seq_printf(p, ", %s", action->name);
+
+                seq_putc(p, '\n');
+skip:
+                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+        }
+        return 0;
+}
diff --git a/arch/microblaze/kernel/microblaze_ksyms.c b/arch/microblaze/kernel/microblaze_ksyms.c
new file mode 100644
index 000000000000..5f71790e3c3c
--- /dev/null
+++ b/arch/microblaze/kernel/microblaze_ksyms.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ *
+ * 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/module.h>
+#include <linux/string.h>
+#include <linux/cryptohash.h>
+#include <linux/delay.h>
+#include <linux/in6.h>
+#include <linux/syscalls.h>
+
+#include <asm/checksum.h>
+#include <linux/io.h>
+#include <asm/page.h>
+#include <asm/system.h>
+#include <linux/uaccess.h>
+
+/*
+ * libgcc functions - functions that are used internally by the
+ * compiler... (prototypes are not correct though, but that
+ * doesn't really matter since they're not versioned).
+ */
+extern void __ashldi3(void);
+EXPORT_SYMBOL(__ashldi3);
+extern void __ashrdi3(void);
+EXPORT_SYMBOL(__ashrdi3);
+extern void __divsi3(void);
+EXPORT_SYMBOL(__divsi3);
+extern void __lshrdi3(void);
+EXPORT_SYMBOL(__lshrdi3);
+extern void __modsi3(void);
+EXPORT_SYMBOL(__modsi3);
+extern void __mulsi3(void);
+EXPORT_SYMBOL(__mulsi3);
+extern void __muldi3(void);
+EXPORT_SYMBOL(__muldi3);
+extern void __ucmpdi2(void);
+EXPORT_SYMBOL(__ucmpdi2);
+extern void __udivsi3(void);
+EXPORT_SYMBOL(__udivsi3);
+extern void __umodsi3(void);
+EXPORT_SYMBOL(__umodsi3);
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
new file mode 100644
index 000000000000..51414171326f
--- /dev/null
+++ b/arch/microblaze/kernel/module.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ *
+ * 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/module.h>
+#include <linux/moduleloader.h>
+#include <linux/kernel.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+
+#include <asm/pgtable.h>
+
+void *module_alloc(unsigned long size)
+{
+        void *ret;
+        ret = (size == 0) ? NULL : vmalloc(size);
+        pr_debug("module_alloc (%08lx@%08lx)\n", size, (unsigned long int)ret);
+        return ret;
+}
+
+void module_free(struct module *module, void *region)
+{
+        pr_debug("module_free(%s,%08lx)\n", module->name,
+                                        (unsigned long)region);
+        vfree(region);
+}
+
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+                                Elf_Shdr *sechdrs,
+                                char *secstrings,
+                                struct module *mod)
+{
+        return 0;
+}
+
+int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab,
+        unsigned int symindex, unsigned int relsec, struct module *module)
+{
+        printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n",
+                module->name);
+        return -ENOEXEC;
+}
+
+int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
+        unsigned int symindex, unsigned int relsec, struct module *module)
+{
+
+        unsigned int i;
+        Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
+        Elf32_Sym *sym;
+        unsigned long int *location;
+        unsigned long int locoffs;
+        unsigned long int value;
+#if __GNUC__ < 4
+        unsigned long int old_value;
+#endif
+
+        pr_debug("Applying add relocation section %u to %u\n",
+                relsec, sechdrs[relsec].sh_info);
+
+        for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
+
+                location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr +
+                                rela[i].r_offset;
+                sym = (Elf32_Sym *)sechdrs[symindex].sh_addr +
+                        ELF32_R_SYM(rela[i].r_info);
+                value = sym->st_value + rela[i].r_addend;
+
+                switch (ELF32_R_TYPE(rela[i].r_info)) {
+
+                /*
+                 * Be careful! mb-gcc / mb-ld splits the relocs between the
+                 * text and the reloc table. In general this means we must
+                 * read the current contents of (*location), add any offset
+                 * then store the result back in
+                 */
+
+                case R_MICROBLAZE_32:
+#if __GNUC__ < 4
+                        old_value = *location;
+                        *location = value + old_value;
+
+                        pr_debug("R_MICROBLAZE_32 (%08lx->%08lx)\n",
+                                old_value, value);
+#else
+                        *location = value;
+#endif
+                        break;
+
+                case R_MICROBLAZE_64:
+#if __GNUC__ < 4
+                        /* Split relocs only required/used pre gcc4.1.1 */
+                        old_value = ((location[0] & 0x0000FFFF) << 16) |
+                                        (location[1] & 0x0000FFFF);
+                        value += old_value;
+#endif
+                        location[0] = (location[0] & 0xFFFF0000) |
+                                        (value >> 16);
+                        location[1] = (location[1] & 0xFFFF0000) |
+                                        (value & 0xFFFF);
+#if __GNUC__ < 4
+                        pr_debug("R_MICROBLAZE_64 (%08lx->%08lx)\n",
+                                old_value, value);
+#endif
+                        break;
+
+                case R_MICROBLAZE_64_PCREL:
+                        locoffs = (location[0] & 0xFFFF) << 16 |
+                                (location[1] & 0xFFFF);
+                        value -= (unsigned long int)(location) + 4 +
+                                locoffs;
+                        location[0] = (location[0] & 0xFFFF0000) |
+                                        (value >> 16);
+                        location[1] = (location[1] & 0xFFFF0000) |
+                                        (value & 0xFFFF);
+                        pr_debug("R_MICROBLAZE_64_PCREL (%08lx)\n",
+                                value);
+                        break;
+
+                case R_MICROBLAZE_NONE:
+                        pr_debug("R_MICROBLAZE_NONE\n");
+                        break;
+
+                default:
+                        printk(KERN_ERR "module %s: "
+                                "Unknown relocation: %u\n",
+                                module->name,
+                                ELF32_R_TYPE(rela->r_info));
+                        return -ENOEXEC;
+                }
+        }
+        return 0;
+}
+
+int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
+                struct module *module)
+{
+        return 0;
+}
+
+void module_arch_cleanup(struct module *mod)
+{
+}
diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c
new file mode 100644
index 000000000000..9a0f7632c47c
--- /dev/null
+++ b/arch/microblaze/kernel/of_device.c
@@ -0,0 +1,113 @@
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+
+#include <linux/errno.h>
+
+void of_device_make_bus_id(struct of_device *dev)
+{
+        static atomic_t bus_no_reg_magic;
+        struct device_node *node = dev->node;
+        const u32 *reg;
+        u64 addr;
+        int magic;
+
+        /*
+         * For MMIO, get the physical address
+         */
+        reg = of_get_property(node, "reg", NULL);
+        if (reg) {
+                addr = of_translate_address(node, reg);
+                if (addr != OF_BAD_ADDR) {
+                        dev_set_name(&dev->dev, "%llx.%s",
+                                     (unsigned long long)addr, node->name);
+                        return;
+                }
+        }
+
+        /*
+         * No BusID, use the node name and add a globally incremented
+         * counter (and pray...)
+         */
+        magic = atomic_add_return(1, &bus_no_reg_magic);
+        dev_set_name(&dev->dev, "%s.%d", node->name, magic - 1);
+}
+EXPORT_SYMBOL(of_device_make_bus_id);
+
+struct of_device *of_device_alloc(struct device_node *np,
+                                  const char *bus_id,
+                                  struct device *parent)
+{
+        struct of_device *dev;
+
+        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+        if (!dev)
+                return NULL;
+
+        dev->node = of_node_get(np);
+        dev->dev.dma_mask = &dev->dma_mask;
+        dev->dev.parent = parent;
+        dev->dev.release = of_release_dev;
+        dev->dev.archdata.of_node = np;
+
+        if (bus_id)
+                dev_set_name(&dev->dev, bus_id);
+        else
+                of_device_make_bus_id(dev);
+
+        return dev;
+}
+EXPORT_SYMBOL(of_device_alloc);
+
+int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+        struct of_device *ofdev;
+        const char *compat;
+        int seen = 0, cplen, sl;
+
+        if (!dev)
+                return -ENODEV;
+
+        ofdev = to_of_device(dev);
+
+        if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name))
+                return -ENOMEM;
+
+        if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type))
+                return -ENOMEM;
+
+        /* Since the compatible field can contain pretty much anything
+         * it's not really legal to split it out with commas. We split it
+         * up using a number of environment variables instead. */
+
+        compat = of_get_property(ofdev->node, "compatible", &cplen);
+        while (compat && *compat && cplen > 0) {
+                if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat))
+                        return -ENOMEM;
+
+                sl = strlen(compat) + 1;
+                compat += sl;
+                cplen -= sl;
+                seen++;
+        }
+
+        if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen))
+                return -ENOMEM;
+
+        /* modalias is trickier, we add it in 2 steps */
+        if (add_uevent_var(env, "MODALIAS="))
+                return -ENOMEM;
+        sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1],
+                                    sizeof(env->buf) - env->buflen);
+        if (sl >= (sizeof(env->buf) - env->buflen))
+                return -ENOMEM;
+        env->buflen += sl;
+
+        return 0;
+}
+EXPORT_SYMBOL(of_device_uevent);
diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c
new file mode 100644
index 000000000000..acf4574d0f18
--- /dev/null
+++ b/arch/microblaze/kernel/of_platform.c
@@ -0,0 +1,201 @@
+/*
+ *    Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
+ *                       <benh@kernel.crashing.org>
+ *    and                Arnd Bergmann, 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.
+ *
+ */
+
+#undef DEBUG
+
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+
+#include <linux/errno.h>
+#include <linux/topology.h>
+#include <asm/atomic.h>
+
+struct bus_type of_platform_bus_type = {
+       .uevent  = of_device_uevent,
+};
+EXPORT_SYMBOL(of_platform_bus_type);
+
+static int __init of_bus_driver_init(void)
+{
+        return of_bus_type_init(&of_platform_bus_type, "of_platform");
+}
+postcore_initcall(of_bus_driver_init);
+
+struct of_device *of_platform_device_create(struct device_node *np,
+                                            const char *bus_id,
+                                            struct device *parent)
+{
+        struct of_device *dev;
+
+        dev = of_device_alloc(np, bus_id, parent);
+        if (!dev)
+                return NULL;
+
+        dev->dma_mask = 0xffffffffUL;
+        dev->dev.bus = &of_platform_bus_type;
+
+        /* We do not fill the DMA ops for platform devices by default.
+         * This is currently the responsibility of the platform code
+         * to do such, possibly using a device notifier
+         */
+
+        if (of_device_register(dev) != 0) {
+                of_device_free(dev);
+                return NULL;
+        }
+
+        return dev;
+}
+EXPORT_SYMBOL(of_platform_device_create);
+
+/**
+ * of_platform_bus_create - Create an OF device for a bus node and all its
+ * children. Optionally recursively instanciate matching busses.
+ * @bus: device node of the bus to instanciate
+ * @matches: match table, NULL to use the default, OF_NO_DEEP_PROBE to
+ * disallow recursive creation of child busses
+ */
+static int of_platform_bus_create(const struct device_node *bus,
+                                  const struct of_device_id *matches,
+                                  struct device *parent)
+{
+        struct device_node *child;
+        struct of_device *dev;
+        int rc = 0;
+
+        for_each_child_of_node(bus, child) {
+                pr_debug("   create child: %s\n", child->full_name);
+                dev = of_platform_device_create(child, NULL, parent);
+                if (dev == NULL)
+                        rc = -ENOMEM;
+                else if (!of_match_node(matches, child))
+                        continue;
+                if (rc == 0) {
+                        pr_debug("   and sub busses\n");
+                        rc = of_platform_bus_create(child, matches, &dev->dev);
+                }
+                if (rc) {
+                        of_node_put(child);
+                        break;
+                }
+        }
+        return rc;
+}
+
+
+/**
+ * of_platform_bus_probe - Probe the device-tree for platform busses
+ * @root: parent of the first level to probe or NULL for the root of the tree
+ * @matches: match table, NULL to use the default
+ * @parent: parent to hook devices from, NULL for toplevel
+ *
+ * Note that children of the provided root are not instanciated as devices
+ * unless the specified root itself matches the bus list and is not NULL.
+ */
+
+int of_platform_bus_probe(struct device_node *root,
+                          const struct of_device_id *matches,
+                          struct device *parent)
+{
+        struct device_node *child;
+        struct of_device *dev;
+        int rc = 0;
+
+        if (matches == NULL)
+                matches = of_default_bus_ids;
+        if (matches == OF_NO_DEEP_PROBE)
+                return -EINVAL;
+        if (root == NULL)
+                root = of_find_node_by_path("/");
+        else
+                of_node_get(root);
+
+        pr_debug("of_platform_bus_probe()\n");
+        pr_debug(" starting at: %s\n", root->full_name);
+
+        /* Do a self check of bus type, if there's a match, create
+         * children
+         */
+        if (of_match_node(matches, root)) {
+                pr_debug(" root match, create all sub devices\n");
+                dev = of_platform_device_create(root, NULL, parent);
+                if (dev == NULL) {
+                        rc = -ENOMEM;
+                        goto bail;
+                }
+                pr_debug(" create all sub busses\n");
+                rc = of_platform_bus_create(root, matches, &dev->dev);
+                goto bail;
+        }
+        for_each_child_of_node(root, child) {
+                if (!of_match_node(matches, child))
+                        continue;
+
+                pr_debug("  match: %s\n", child->full_name);
+                dev = of_platform_device_create(child, NULL, parent);
+                if (dev == NULL)
+                        rc = -ENOMEM;
+                else
+                        rc = of_platform_bus_create(child, matches, &dev->dev);
+                if (rc) {
+                        of_node_put(child);
+                        break;
+                }
+        }
+ bail:
+        of_node_put(root);
+        return rc;
+}
+EXPORT_SYMBOL(of_platform_bus_probe);
+
+static int of_dev_node_match(struct device *dev, void *data)
+{
+        return to_of_device(dev)->node == data;
+}
+
+struct of_device *of_find_device_by_node(struct device_node *np)
+{
+        struct device *dev;
+
+        dev = bus_find_device(&of_platform_bus_type,
+                              NULL, np, of_dev_node_match);
+        if (dev)
+                return to_of_device(dev);
+        return NULL;
+}
+EXPORT_SYMBOL(of_find_device_by_node);
+
+static int of_dev_phandle_match(struct device *dev, void *data)
+{
+        phandle *ph = data;
+        return to_of_device(dev)->node->linux_phandle == *ph;
+}
+
+struct of_device *of_find_device_by_phandle(phandle ph)
+{
+        struct device *dev;
+
+        dev = bus_find_device(&of_platform_bus_type,
+                              NULL, &ph, of_dev_phandle_match);
+        if (dev)
+                return to_of_device(dev);
+        return NULL;
+}
+EXPORT_SYMBOL(of_find_device_by_phandle);
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
new file mode 100644
index 000000000000..436f26ccbfa9
--- /dev/null
+++ b/arch/microblaze/kernel/process.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/pm.h>
+#include <linux/tick.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/pgalloc.h>
+
+void show_regs(struct pt_regs *regs)
+{
+        printk(KERN_INFO " Registers dump: mode=%X\r\n", regs->kernel_mode);
+        printk(KERN_INFO " r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n",
+                                regs->r1, regs->r2, regs->r3, regs->r4);
+        printk(KERN_INFO " r5=%08lX, r6=%08lX, r7=%08lX, r8=%08lX\n",
+                                regs->r5, regs->r6, regs->r7, regs->r8);
+        printk(KERN_INFO " r9=%08lX, r10=%08lX, r11=%08lX, r12=%08lX\n",
+                                regs->r9, regs->r10, regs->r11, regs->r12);
+        printk(KERN_INFO " r13=%08lX, r14=%08lX, r15=%08lX, r16=%08lX\n",
+                                regs->r13, regs->r14, regs->r15, regs->r16);
+        printk(KERN_INFO " r17=%08lX, r18=%08lX, r19=%08lX, r20=%08lX\n",
+                                regs->r17, regs->r18, regs->r19, regs->r20);
+        printk(KERN_INFO " r21=%08lX, r22=%08lX, r23=%08lX, r24=%08lX\n",
+                                regs->r21, regs->r22, regs->r23, regs->r24);
+        printk(KERN_INFO " r25=%08lX, r26=%08lX, r27=%08lX, r28=%08lX\n",
+                                regs->r25, regs->r26, regs->r27, regs->r28);
+        printk(KERN_INFO " r29=%08lX, r30=%08lX, r31=%08lX, rPC=%08lX\n",
+                                regs->r29, regs->r30, regs->r31, regs->pc);
+        printk(KERN_INFO " msr=%08lX, ear=%08lX, esr=%08lX, fsr=%08lX\n",
+                                regs->msr, regs->ear, regs->esr, regs->fsr);
+        while (1)
+                ;
+}
+
+void (*pm_idle)(void);
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
+static int hlt_counter = 1;
+
+void disable_hlt(void)
+{
+        hlt_counter++;
+}
+EXPORT_SYMBOL(disable_hlt);
+
+void enable_hlt(void)
+{
+        hlt_counter--;
+}
+EXPORT_SYMBOL(enable_hlt);
+
+static int __init nohlt_setup(char *__unused)
+{
+        hlt_counter = 1;
+        return 1;
+}
+__setup("nohlt", nohlt_setup);
+
+static int __init hlt_setup(char *__unused)
+{
+        hlt_counter = 0;
+        return 1;
+}
+__setup("hlt", hlt_setup);
+
+void default_idle(void)
+{
+        if (!hlt_counter) {
+                clear_thread_flag(TIF_POLLING_NRFLAG);
+                smp_mb__after_clear_bit();
+                local_irq_disable();
+                while (!need_resched())
+                        cpu_sleep();
+                local_irq_enable();
+                set_thread_flag(TIF_POLLING_NRFLAG);
+        } else
+                while (!need_resched())
+                        cpu_relax();
+}
+
+void cpu_idle(void)
+{
+        set_thread_flag(TIF_POLLING_NRFLAG);
+
+        /* endless idle loop with no priority at all */
+        while (1) {
+                void (*idle)(void) = pm_idle;
+
+                if (!idle)
+                        idle = default_idle;
+
+                tick_nohz_stop_sched_tick(1);
+                while (!need_resched())
+                        idle();
+                tick_nohz_restart_sched_tick();
+
+                preempt_enable_no_resched();
+                schedule();
+                preempt_disable();
+                check_pgt_cache();
+        }
+}
+
+void flush_thread(void)
+{
+}
+
+int copy_thread(unsigned long clone_flags, unsigned long usp,
+                unsigned long unused,
+                struct task_struct *p, struct pt_regs *regs)
+{
+        struct pt_regs *childregs = task_pt_regs(p);
+        struct thread_info *ti = task_thread_info(p);
+
+        *childregs = *regs;
+        if (user_mode(regs))
+                childregs->r1 = usp;
+        else
+                childregs->r1 = ((unsigned long) ti) + THREAD_SIZE;
+
+        memset(&ti->cpu_context, 0, sizeof(struct cpu_context));
+        ti->cpu_context.r1 = (unsigned long)childregs;
+        ti->cpu_context.msr = (unsigned long)childregs->msr;
+        ti->cpu_context.r15 = (unsigned long)ret_from_fork - 8;
+
+        if (clone_flags & CLONE_SETTLS)
+                ;
+
+        return 0;
+}
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+unsigned long thread_saved_pc(struct task_struct *tsk)
+{
+        struct cpu_context *ctx =
+                &(((struct thread_info *)(tsk->stack))->cpu_context);
+
+        /* Check whether the thread is blocked in resume() */
+        if (in_sched_functions(ctx->r15))
+                return (unsigned long)ctx->r15;
+        else
+                return ctx->r14;
+}
+
+static void kernel_thread_helper(int (*fn)(void *), void *arg)
+{
+        fn(arg);
+        do_exit(-1);
+}
+
+int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
+{
+        struct pt_regs regs;
+        int ret;
+
+        memset(&regs, 0, sizeof(regs));
+        /* store them in non-volatile registers */
+        regs.r5 = (unsigned long)fn;
+        regs.r6 = (unsigned long)arg;
+        local_save_flags(regs.msr);
+        regs.pc = (unsigned long)kernel_thread_helper;
+        regs.kernel_mode = 1;
+
+        ret = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
+                        &regs, 0, NULL, NULL);
+
+        return ret;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+/* TBD (used by procfs) */
+        return 0;
+}
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
new file mode 100644
index 000000000000..34c48718061a
--- /dev/null
+++ b/arch/microblaze/kernel/prom.c
@@ -0,0 +1,1146 @@
+/*
+ * 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.
+ */
+
+#include <stdarg.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 <linux/kexec.h>
+#include <linux/debugfs.h>
+#include <linux/irq.h>
+#include <linux/lmb.h>
+
+#include <asm/prom.h>
+#include <asm/page.h>
+#include <asm/processor.h>
+#include <asm/irq.h>
+#include <linux/io.h>
+#include <asm/system.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+#include <asm/pci-bridge.h>
+
+static int __initdata dt_root_addr_cells;
+static int __initdata dt_root_size_cells;
+
+typedef u32 cell_t;
+
+static struct boot_param_header *initial_boot_params;
+
+/* export that to outside world */
+struct device_node *of_chosen;
+
+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
+ */
+int __init of_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;
+}
+
+unsigned long __init of_get_flat_dt_root(void)
+{
+        unsigned long p = ((unsigned long)initial_boot_params) +
+                initial_boot_params->off_dt_struct;
+
+        while (*((u32 *)p) == OF_DT_NOP)
+                p += 4;
+        BUG_ON(*((u32 *)p) != OF_DT_BEGIN_NODE);
+        p += 4;
+        return _ALIGN(p + strlen((char *)p) + 1, 4);
+}
+
+/**
+ * This function can be used within scan_flattened_dt callback to get
+ * access to properties
+ */
+void *__init of_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);
+}
+
+int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
+{
+        const char *cp;
+        unsigned long cplen, l;
+
+        cp = of_get_flat_dt_prop(node, "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;
+}
+
+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 *p2 = np->full_name;
+                        /* rebuild full path for new format */
+                        if (dad && dad->parent) {
+                                strcpy(p2, dad->full_name);
+#ifdef DEBUG
+                                if ((strlen(p2) + l + 1) != allocl) {
+                                        pr_debug("%s: p: %d, l: %d, a: %d\n",
+                                                pathp, (int)strlen(p2),
+                                                l, allocl);
+                                }
+#endif
+                                p2 += strlen(p2);
+                        }
+                        *(p2++) = '/';
+                        memcpy(p2, 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 == NULL)
+                                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(KERN_INFO
+                                "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 *p1 = pathp, *ps = pathp, *pa = NULL;
+                int sz;
+
+                while (*p1) {
+                        if ((*p1) == '@')
+                                pa = p1;
+                        if ((*p1) == '/')
+                                ps = p1 + 1;
+                        p1++;
+                }
+                if (pa < ps)
+                        pa = p1;
+                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 = pp + 1;
+                        *prev_pp = pp;
+                        prev_pp = &pp->next;
+                        memcpy(pp->value, ps, sz - 1);
+                        ((char *)pp->value)[sz - 1] = 0;
+                        pr_debug("fixed up name for %s -> %s\n", pathp,
+                                (char *)pp->value);
+                }
+        }
+        if (allnextpp) {
+                *prev_pp = NULL;
+                np->name = of_get_property(np, "name", NULL);
+                np->type = of_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(KERN_INFO "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;
+
+        pr_debug(" -> 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;
+
+        pr_debug("  size is %lx, allocating...\n", size);
+
+        /* Allocate memory for the expanded device tree */
+        mem = lmb_alloc(size + 4, __alignof__(struct device_node));
+        mem = (unsigned long) __va(mem);
+
+        ((u32 *)mem)[size / 4] = 0xdeadbeef;
+
+        pr_debug("  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");
+
+        pr_debug(" <- unflatten_device_tree()\n");
+}
+
+#define early_init_dt_scan_drconf_memory(node) 0
+
+static int __init early_init_dt_scan_cpus(unsigned long node,
+                                          const char *uname, int depth,
+                                          void *data)
+{
+        static int logical_cpuid;
+        char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+        const u32 *intserv;
+        int i, nthreads;
+        int found = 0;
+
+        /* We are scanning "cpu" nodes only */
+        if (type == NULL || strcmp(type, "cpu") != 0)
+                return 0;
+
+        /* Get physical cpuid */
+        intserv = of_get_flat_dt_prop(node, "reg", NULL);
+        nthreads = 1;
+
+        /*
+         * Now see if any of these threads match our boot cpu.
+         * NOTE: This must match the parsing done in smp_setup_cpu_maps.
+         */
+        for (i = 0; i < nthreads; i++) {
+                /*
+                 * version 2 of the kexec param format adds the phys cpuid of
+                 * booted proc.
+                 */
+                if (initial_boot_params && initial_boot_params->version >= 2) {
+                        if (intserv[i] ==
+                                        initial_boot_params->boot_cpuid_phys) {
+                                found = 1;
+                                break;
+                        }
+                } else {
+                        /*
+                         * Check if it's the boot-cpu, set it's hw index now,
+                         * unfortunately this format did not support booting
+                         * off secondary threads.
+                         */
+                        if (of_get_flat_dt_prop(node,
+                                        "linux,boot-cpu", NULL) != NULL) {
+                                found = 1;
+                                break;
+                        }
+                }
+
+#ifdef CONFIG_SMP
+                /* logical cpu id is always 0 on UP kernels */
+                logical_cpuid++;
+#endif
+        }
+
+        if (found) {
+                pr_debug("boot cpu: logical %d physical %d\n", logical_cpuid,
+                        intserv[i]);
+                boot_cpuid = logical_cpuid;
+        }
+
+        return 0;
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+static void __init early_init_dt_check_for_initrd(unsigned long node)
+{
+        unsigned long l;
+        u32 *prop;
+
+        pr_debug("Looking for initrd properties... ");
+
+        prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
+        if (prop) {
+                initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4));
+
+                prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
+                if (prop) {
+                        initrd_end = (unsigned long)
+                                        __va(of_read_ulong(prop, l/4));
+                        initrd_below_start_ok = 1;
+                } else {
+                        initrd_start = 0;
+                }
+        }
+
+        pr_debug("initrd_start=0x%lx  initrd_end=0x%lx\n",
+                                        initrd_start, initrd_end);
+}
+#else
+static inline void early_init_dt_check_for_initrd(unsigned long node)
+{
+}
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+static int __init early_init_dt_scan_chosen(unsigned long node,
+                                const char *uname, int depth, void *data)
+{
+        unsigned long l;
+        char *p;
+
+        pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+        if (depth != 1 ||
+                (strcmp(uname, "chosen") != 0 &&
+                                strcmp(uname, "chosen@0") != 0))
+                return 0;
+
+#ifdef CONFIG_KEXEC
+        lprop = (u64 *)of_get_flat_dt_prop(node,
+                                "linux,crashkernel-base", NULL);
+        if (lprop)
+                crashk_res.start = *lprop;
+
+        lprop = (u64 *)of_get_flat_dt_prop(node,
+                                "linux,crashkernel-size", NULL);
+        if (lprop)
+                crashk_res.end = crashk_res.start + *lprop - 1;
+#endif
+
+        early_init_dt_check_for_initrd(node);
+
+        /* Retreive command line */
+        p = of_get_flat_dt_prop(node, "bootargs", &l);
+        if (p != NULL && l > 0)
+                strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
+
+#ifdef CONFIG_CMDLINE
+        if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
+                strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif /* CONFIG_CMDLINE */
+
+        pr_debug("Command line is: %s\n", cmd_line);
+
+        /* 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 = of_get_flat_dt_prop(node, "#size-cells", NULL);
+        dt_root_size_cells = (prop == NULL) ? 1 : *prop;
+        pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
+
+        prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
+        dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
+        pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
+
+        /* break now */
+        return 1;
+}
+
+static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
+{
+        cell_t *p = *cellp;
+
+        *cellp = p + s;
+        return of_read_number(p, s);
+}
+
+static int __init early_init_dt_scan_memory(unsigned long node,
+                                const char *uname, int depth, void *data)
+{
+        char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+        cell_t *reg, *endp;
+        unsigned long l;
+
+        /* Look for the ibm,dynamic-reconfiguration-memory node */
+/*      if (depth == 1 &&
+                strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
+                return early_init_dt_scan_drconf_memory(node);
+*/
+        /* We are scanning "memory" nodes only */
+        if (type == NULL) {
+                /*
+                 * The longtrail doesn't have a device_type on the
+                 * /memory node, so look for the node called /memory@0.
+                 */
+                if (depth != 1 || strcmp(uname, "memory@0") != 0)
+                        return 0;
+        } else if (strcmp(type, "memory") != 0)
+                return 0;
+
+        reg = (cell_t *)of_get_flat_dt_prop(node, "linux,usable-memory", &l);
+        if (reg == NULL)
+                reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
+        if (reg == NULL)
+                return 0;
+
+        endp = reg + (l / sizeof(cell_t));
+
+        pr_debug("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)) {
+                u64 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;
+                pr_debug(" - %llx ,  %llx\n", (unsigned long long)base,
+                        (unsigned long long)size);
+
+                lmb_add(base, size);
+        }
+        return 0;
+}
+
+#ifdef CONFIG_PHYP_DUMP
+/**
+ * phyp_dump_calculate_reserve_size() - reserve variable boot area 5% or arg
+ *
+ * Function to find the largest size we need to reserve
+ * during early boot process.
+ *
+ * It either looks for boot param and returns that OR
+ * returns larger of 256 or 5% rounded down to multiples of 256MB.
+ *
+ */
+static inline unsigned long phyp_dump_calculate_reserve_size(void)
+{
+        unsigned long tmp;
+
+        if (phyp_dump_info->reserve_bootvar)
+                return phyp_dump_info->reserve_bootvar;
+
+        /* divide by 20 to get 5% of value */
+        tmp = lmb_end_of_DRAM();
+        do_div(tmp, 20);
+
+        /* round it down in multiples of 256 */
+        tmp = tmp & ~0x0FFFFFFFUL;
+
+        return (tmp > PHYP_DUMP_RMR_END ? tmp : PHYP_DUMP_RMR_END);
+}
+
+/**
+ * phyp_dump_reserve_mem() - reserve all not-yet-dumped mmemory
+ *
+ * This routine may reserve memory regions in the kernel only
+ * if the system is supported and a dump was taken in last
+ * boot instance or if the hardware is supported and the
+ * scratch area needs to be setup. In other instances it returns
+ * without reserving anything. The memory in case of dump being
+ * active is freed when the dump is collected (by userland tools).
+ */
+static void __init phyp_dump_reserve_mem(void)
+{
+        unsigned long base, size;
+        unsigned long variable_reserve_size;
+
+        if (!phyp_dump_info->phyp_dump_configured) {
+                printk(KERN_ERR "Phyp-dump not supported on this hardware\n");
+                return;
+        }
+
+        if (!phyp_dump_info->phyp_dump_at_boot) {
+                printk(KERN_INFO "Phyp-dump disabled at boot time\n");
+                return;
+        }
+
+        variable_reserve_size = phyp_dump_calculate_reserve_size();
+
+        if (phyp_dump_info->phyp_dump_is_active) {
+                /* Reserve *everything* above RMR.Area freed by userland tools*/
+                base = variable_reserve_size;
+                size = lmb_end_of_DRAM() - base;
+
+                /* XXX crashed_ram_end is wrong, since it may be beyond
+                 * the memory_limit, it will need to be adjusted. */
+                lmb_reserve(base, size);
+
+                phyp_dump_info->init_reserve_start = base;
+                phyp_dump_info->init_reserve_size = size;
+        } else {
+                size = phyp_dump_info->cpu_state_size +
+                        phyp_dump_info->hpte_region_size +
+                        variable_reserve_size;
+                base = lmb_end_of_DRAM() - size;
+                lmb_reserve(base, size);
+                phyp_dump_info->init_reserve_start = base;
+                phyp_dump_info->init_reserve_size = size;
+        }
+}
+#else
+static inline void __init phyp_dump_reserve_mem(void) {}
+#endif /* CONFIG_PHYP_DUMP  && CONFIG_PPC_RTAS */
+
+#ifdef CONFIG_EARLY_PRINTK
+/* MS this is Microblaze specifig function */
+static int __init early_init_dt_scan_serial(unsigned long node,
+                                const char *uname, int depth, void *data)
+{
+        unsigned long l;
+        char *p;
+        int *addr;
+
+        pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+/* find all serial nodes */
+        if (strncmp(uname, "serial", 6) != 0)
+                return 0;
+
+        early_init_dt_check_for_initrd(node);
+
+/* find compatible node with uartlite */
+        p = of_get_flat_dt_prop(node, "compatible", &l);
+        if ((strncmp(p, "xlnx,xps-uartlite", 17) != 0) &&
+                        (strncmp(p, "xlnx,opb-uartlite", 17) != 0))
+                return 0;
+
+        addr = of_get_flat_dt_prop(node, "reg", &l);
+        return *addr; /* return address */
+}
+
+/* this function is looking for early uartlite console - Microblaze specific */
+int __init early_uartlite_console(void)
+{
+        return of_scan_flat_dt(early_init_dt_scan_serial, NULL);
+}
+#endif
+
+void __init early_init_devtree(void *params)
+{
+        pr_debug(" -> early_init_devtree(%p)\n", params);
+
+        /* Setup flat device-tree pointer */
+        initial_boot_params = params;
+
+#ifdef CONFIG_PHYP_DUMP
+        /* scan tree to see if dump occured during last boot */
+        of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
+#endif
+
+        /* Retrieve various informations from the /chosen node of the
+         * device-tree, including the platform type, initrd location and
+         * size, TCE reserve, and more ...
+         */
+        of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
+
+        /* Scan memory nodes and rebuild LMBs */
+        lmb_init();
+        of_scan_flat_dt(early_init_dt_scan_root, NULL);
+        of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+
+        /* Save command line for /proc/cmdline and then parse parameters */
+        strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
+        parse_early_param();
+
+        lmb_analyze();
+
+        pr_debug("Phys. mem: %lx\n", (unsigned long) lmb_phys_mem_size());
+
+        pr_debug("Scanning CPUs ...\n");
+
+        /* Retreive CPU related informations from the flat tree
+         * (altivec support, boot CPU ID, ...)
+         */
+        of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
+
+        pr_debug(" <- early_init_devtree()\n");
+}
+
+/**
+ * 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 = of_device_is_compatible(root, compat);
+                of_node_put(root);
+        }
+        return rc;
+}
+EXPORT_SYMBOL(machine_is_compatible);
+
+/*******
+ *
+ * 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_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 != NULL; np = np->allnext)
+                if (np->linux_phandle == handle)
+                        break;
+        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 != NULL; np = np->allnext)
+                if (of_node_get(np))
+                        break;
+        of_node_put(prev);
+        read_unlock(&devtree_lock);
+        return np;
+}
+EXPORT_SYMBOL(of_find_all_nodes);
+
+/**
+ *      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;
+
+        /* We should never be releasing nodes that haven't been detached. */
+        if (!of_node_check_flag(node, OF_DETACHED)) {
+                printk(KERN_INFO "WARNING: Bad of_node_put() on %s\n",
+                        node->full_name);
+                dump_stack();
+                kref_init(&node->kref);
+                return;
+        }
+
+        if (!of_node_check_flag(node, OF_DYNAMIC))
+                return;
+
+        while (prop) {
+                struct property *next = prop->next;
+                kfree(prop->name);
+                kfree(prop->value);
+                kfree(prop);
+                prop = next;
+
+                if (!prop) {
+                        prop = node->deadprops;
+                        node->deadprops = NULL;
+                }
+        }
+        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)
+{
+        unsigned long flags;
+
+        write_lock_irqsave(&devtree_lock, flags);
+        np->sibling = np->parent->child;
+        np->allnext = allnodes;
+        np->parent->child = np;
+        allnodes = np;
+        write_unlock_irqrestore(&devtree_lock, flags);
+}
+
+/*
+ * "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(struct device_node *np)
+{
+        struct device_node *parent;
+        unsigned long flags;
+
+        write_lock_irqsave(&devtree_lock, flags);
+
+        parent = np->parent;
+        if (!parent)
+                goto out_unlock;
+
+        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;
+        }
+
+        of_node_set_flag(np, OF_DETACHED);
+
+out_unlock:
+        write_unlock_irqrestore(&devtree_lock, flags);
+}
+
+/*
+ * Add a property to a node
+ */
+int prom_add_property(struct device_node *np, struct property *prop)
+{
+        struct property **next;
+        unsigned long flags;
+
+        prop->next = NULL;
+        write_lock_irqsave(&devtree_lock, flags);
+        next = &np->properties;
+        while (*next) {
+                if (strcmp(prop->name, (*next)->name) == 0) {
+                        /* duplicate ! don't insert it */
+                        write_unlock_irqrestore(&devtree_lock, flags);
+                        return -1;
+                }
+                next = &(*next)->next;
+        }
+        *next = prop;
+        write_unlock_irqrestore(&devtree_lock, flags);
+
+#ifdef CONFIG_PROC_DEVICETREE
+        /* try to add to proc as well if it was initialized */
+        if (np->pde)
+                proc_device_tree_add_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+        return 0;
+}
+
+/*
+ * Remove a property from a node.  Note that we don't actually
+ * remove it, since we have given out who-knows-how-many pointers
+ * to the data using get-property.  Instead we just move the property
+ * to the "dead properties" list, so it won't be found any more.
+ */
+int prom_remove_property(struct device_node *np, struct property *prop)
+{
+        struct property **next;
+        unsigned long flags;
+        int found = 0;
+
+        write_lock_irqsave(&devtree_lock, flags);
+        next = &np->properties;
+        while (*next) {
+                if (*next == prop) {
+                        /* found the node */
+                        *next = prop->next;
+                        prop->next = np->deadprops;
+                        np->deadprops = prop;
+                        found = 1;
+                        break;
+                }
+                next = &(*next)->next;
+        }
+        write_unlock_irqrestore(&devtree_lock, flags);
+
+        if (!found)
+                return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+        /* try to remove the proc node as well */
+        if (np->pde)
+                proc_device_tree_remove_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+        return 0;
+}
+
+/*
+ * Update a property in a node.  Note that we don't actually
+ * remove it, since we have given out who-knows-how-many pointers
+ * to the data using get-property.  Instead we just move the property
+ * to the "dead properties" list, and add the new property to the
+ * property list
+ */
+int prom_update_property(struct device_node *np,
+                         struct property *newprop,
+                         struct property *oldprop)
+{
+        struct property **next;
+        unsigned long flags;
+        int found = 0;
+
+        write_lock_irqsave(&devtree_lock, flags);
+        next = &np->properties;
+        while (*next) {
+                if (*next == oldprop) {
+                        /* found the node */
+                        newprop->next = oldprop->next;
+                        *next = newprop;
+                        oldprop->next = np->deadprops;
+                        np->deadprops = oldprop;
+                        found = 1;
+                        break;
+                }
+                next = &(*next)->next;
+        }
+        write_unlock_irqrestore(&devtree_lock, flags);
+
+        if (!found)
+                return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+        /* try to add to proc as well if it was initialized */
+        if (np->pde)
+                proc_device_tree_update_prop(np->pde, newprop, oldprop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+        return 0;
+}
+
+#if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
+static struct debugfs_blob_wrapper flat_dt_blob;
+
+static int __init export_flat_device_tree(void)
+{
+        struct dentry *d;
+
+        flat_dt_blob.data = initial_boot_params;
+        flat_dt_blob.size = initial_boot_params->totalsize;
+
+        d = debugfs_create_blob("flat-device-tree", S_IFREG | S_IRUSR,
+                                of_debugfs_root, &flat_dt_blob);
+        if (!d)
+                return 1;
+
+        return 0;
+}
+device_initcall(export_flat_device_tree);
+#endif
diff --git a/arch/microblaze/kernel/prom_parse.c b/arch/microblaze/kernel/prom_parse.c
new file mode 100644
index 000000000000..ae0352ecd5a9
--- /dev/null
+++ b/arch/microblaze/kernel/prom_parse.c
@@ -0,0 +1,1025 @@
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/pci_regs.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/etherdevice.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+
+#define PRu64   "%llx"
+
+/* Max address size we deal with */
+#define OF_MAX_ADDR_CELLS       4
+#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
+                        (ns) > 0)
+
+static struct of_bus *of_match_bus(struct device_node *np);
+static int __of_address_to_resource(struct device_node *dev,
+                const u32 *addrp, u64 size, unsigned int flags,
+                struct resource *r);
+
+/* Debug utility */
+#ifdef DEBUG
+static void of_dump_addr(const char *s, const u32 *addr, int na)
+{
+        printk(KERN_INFO "%s", s);
+        while (na--)
+                printk(KERN_INFO " %08x", *(addr++));
+        printk(KERN_INFO "\n");
+}
+#else
+static void of_dump_addr(const char *s, const u32 *addr, int na) { }
+#endif
+
+/* Callbacks for bus specific translators */
+struct of_bus {
+        const char      *name;
+        const char      *addresses;
+        int             (*match)(struct device_node *parent);
+        void            (*count_cells)(struct device_node *child,
+                                        int *addrc, int *sizec);
+        u64             (*map)(u32 *addr, const u32 *range,
+                                int na, int ns, int pna);
+        int             (*translate)(u32 *addr, u64 offset, int na);
+        unsigned int    (*get_flags)(const u32 *addr);
+};
+
+/*
+ * Default translator (generic bus)
+ */
+
+static void of_bus_default_count_cells(struct device_node *dev,
+                                        int *addrc, int *sizec)
+{
+        if (addrc)
+                *addrc = of_n_addr_cells(dev);
+        if (sizec)
+                *sizec = of_n_size_cells(dev);
+}
+
+static u64 of_bus_default_map(u32 *addr, const u32 *range,
+                int na, int ns, int pna)
+{
+        u64 cp, s, da;
+
+        cp = of_read_number(range, na);
+        s  = of_read_number(range + na + pna, ns);
+        da = of_read_number(addr, na);
+
+        pr_debug("OF: default map, cp="PRu64", s="PRu64", da="PRu64"\n",
+                cp, s, da);
+
+        if (da < cp || da >= (cp + s))
+                return OF_BAD_ADDR;
+        return da - cp;
+}
+
+static int of_bus_default_translate(u32 *addr, u64 offset, int na)
+{
+        u64 a = of_read_number(addr, na);
+        memset(addr, 0, na * 4);
+        a += offset;
+        if (na > 1)
+                addr[na - 2] = a >> 32;
+        addr[na - 1] = a & 0xffffffffu;
+
+        return 0;
+}
+
+static unsigned int of_bus_default_get_flags(const u32 *addr)
+{
+        return IORESOURCE_MEM;
+}
+
+#ifdef CONFIG_PCI
+/*
+ * PCI bus specific translator
+ */
+
+static int of_bus_pci_match(struct device_node *np)
+{
+        /* "vci" is for the /chaos bridge on 1st-gen PCI powermacs */
+        return !strcmp(np->type, "pci") || !strcmp(np->type, "vci");
+}
+
+static void of_bus_pci_count_cells(struct device_node *np,
+                                int *addrc, int *sizec)
+{
+        if (addrc)
+                *addrc = 3;
+        if (sizec)
+                *sizec = 2;
+}
+
+static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
+{
+        u64 cp, s, da;
+
+        /* Check address type match */
+        if ((addr[0] ^ range[0]) & 0x03000000)
+                return OF_BAD_ADDR;
+
+        /* Read address values, skipping high cell */
+        cp = of_read_number(range + 1, na - 1);
+        s  = of_read_number(range + na + pna, ns);
+        da = of_read_number(addr + 1, na - 1);
+
+        pr_debug("OF: PCI map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da);
+
+        if (da < cp || da >= (cp + s))
+                return OF_BAD_ADDR;
+        return da - cp;
+}
+
+static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
+{
+        return of_bus_default_translate(addr + 1, offset, na - 1);
+}
+
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
+{
+        unsigned int flags = 0;
+        u32 w = addr[0];
+
+        switch ((w >> 24) & 0x03) {
+        case 0x01:
+                flags |= IORESOURCE_IO;
+                break;
+        case 0x02: /* 32 bits */
+        case 0x03: /* 64 bits */
+                flags |= IORESOURCE_MEM;
+                break;
+        }
+        if (w & 0x40000000)
+                flags |= IORESOURCE_PREFETCH;
+        return flags;
+}
+
+const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
+                        unsigned int *flags)
+{
+        const u32 *prop;
+        unsigned int psize;
+        struct device_node *parent;
+        struct of_bus *bus;
+        int onesize, i, na, ns;
+
+        /* Get parent & match bus type */
+        parent = of_get_parent(dev);
+        if (parent == NULL)
+                return NULL;
+        bus = of_match_bus(parent);
+        if (strcmp(bus->name, "pci")) {
+                of_node_put(parent);
+                return NULL;
+        }
+        bus->count_cells(dev, &na, &ns);
+        of_node_put(parent);
+        if (!OF_CHECK_COUNTS(na, ns))
+                return NULL;
+
+        /* Get "reg" or "assigned-addresses" property */
+        prop = of_get_property(dev, bus->addresses, &psize);
+        if (prop == NULL)
+                return NULL;
+        psize /= 4;
+
+        onesize = na + ns;
+        for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++)
+                if ((prop[0] & 0xff) == ((bar_no * 4) + PCI_BASE_ADDRESS_0)) {
+                        if (size)
+                                *size = of_read_number(prop + na, ns);
+                        if (flags)
+                                *flags = bus->get_flags(prop);
+                        return prop;
+                }
+        return NULL;
+}
+EXPORT_SYMBOL(of_get_pci_address);
+
+int of_pci_address_to_resource(struct device_node *dev, int bar,
+                                struct resource *r)
+{
+        const u32       *addrp;
+        u64             size;
+        unsigned int    flags;
+
+        addrp = of_get_pci_address(dev, bar, &size, &flags);
+        if (addrp == NULL)
+                return -EINVAL;
+        return __of_address_to_resource(dev, addrp, size, flags, r);
+}
+EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
+
+static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
+{
+        return (((pin - 1) + slot) % 4) + 1;
+}
+
+int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
+{
+        struct device_node *dn, *ppnode;
+        struct pci_dev *ppdev;
+        u32 lspec;
+        u32 laddr[3];
+        u8 pin;
+        int rc;
+
+        /* Check if we have a device node, if yes, fallback to standard OF
+         * parsing
+         */
+        dn = pci_device_to_OF_node(pdev);
+        if (dn)
+                return of_irq_map_one(dn, 0, out_irq);
+
+        /* Ok, we don't, time to have fun. Let's start by building up an
+         * interrupt spec.  we assume #interrupt-cells is 1, which is standard
+         * for PCI. If you do different, then don't use that routine.
+         */
+        rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin);
+        if (rc != 0)
+                return rc;
+        /* No pin, exit */
+        if (pin == 0)
+                return -ENODEV;
+
+        /* Now we walk up the PCI tree */
+        lspec = pin;
+        for (;;) {
+                /* Get the pci_dev of our parent */
+                ppdev = pdev->bus->self;
+
+                /* Ouch, it's a host bridge... */
+                if (ppdev == NULL) {
+                        struct pci_controller *host;
+                        host = pci_bus_to_host(pdev->bus);
+                        ppnode = host ? host->arch_data : NULL;
+                        /* No node for host bridge ? give up */
+                        if (ppnode == NULL)
+                                return -EINVAL;
+                } else
+                        /* We found a P2P bridge, check if it has a node */
+                        ppnode = pci_device_to_OF_node(ppdev);
+
+                /* Ok, we have found a parent with a device-node, hand over to
+                 * the OF parsing code.
+                 * We build a unit address from the linux device to be used for
+                 * resolution. Note that we use the linux bus number which may
+                 * not match your firmware bus numbering.
+                 * Fortunately, in most cases, interrupt-map-mask doesn't
+                 * include the bus number as part of the matching.
+                 * You should still be careful about that though if you intend
+                 * to rely on this function (you ship  a firmware that doesn't
+                 * create device nodes for all PCI devices).
+                 */
+                if (ppnode)
+                        break;
+
+                /* We can only get here if we hit a P2P bridge with no node,
+                 * let's do standard swizzling and try again
+                 */
+                lspec = of_irq_pci_swizzle(PCI_SLOT(pdev->devfn), lspec);
+                pdev = ppdev;
+        }
+
+        laddr[0] = (pdev->bus->number << 16)
+                | (pdev->devfn << 8);
+        laddr[1]  = laddr[2] = 0;
+        return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq);
+}
+EXPORT_SYMBOL_GPL(of_irq_map_pci);
+#endif /* CONFIG_PCI */
+
+/*
+ * ISA bus specific translator
+ */
+
+static int of_bus_isa_match(struct device_node *np)
+{
+        return !strcmp(np->name, "isa");
+}
+
+static void of_bus_isa_count_cells(struct device_node *child,
+                                int *addrc, int *sizec)
+{
+        if (addrc)
+                *addrc = 2;
+        if (sizec)
+                *sizec = 1;
+}
+
+static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna)
+{
+        u64 cp, s, da;
+
+        /* Check address type match */
+        if ((addr[0] ^ range[0]) & 0x00000001)
+                return OF_BAD_ADDR;
+
+        /* Read address values, skipping high cell */
+        cp = of_read_number(range + 1, na - 1);
+        s  = of_read_number(range + na + pna, ns);
+        da = of_read_number(addr + 1, na - 1);
+
+        pr_debug("OF: ISA map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da);
+
+        if (da < cp || da >= (cp + s))
+                return OF_BAD_ADDR;
+        return da - cp;
+}
+
+static int of_bus_isa_translate(u32 *addr, u64 offset, int na)
+{
+        return of_bus_default_translate(addr + 1, offset, na - 1);
+}
+
+static unsigned int of_bus_isa_get_flags(const u32 *addr)
+{
+        unsigned int flags = 0;
+        u32 w = addr[0];
+
+        if (w & 1)
+                flags |= IORESOURCE_IO;
+        else
+                flags |= IORESOURCE_MEM;
+        return flags;
+}
+
+/*
+ * Array of bus specific translators
+ */
+
+static struct of_bus of_busses[] = {
+#ifdef CONFIG_PCI
+        /* PCI */
+        {
+                .name = "pci",
+                .addresses = "assigned-addresses",
+                .match = of_bus_pci_match,
+                .count_cells = of_bus_pci_count_cells,
+                .map = of_bus_pci_map,
+                .translate = of_bus_pci_translate,
+                .get_flags = of_bus_pci_get_flags,
+        },
+#endif /* CONFIG_PCI */
+        /* ISA */
+        {
+                .name = "isa",
+                .addresses = "reg",
+                .match = of_bus_isa_match,
+                .count_cells = of_bus_isa_count_cells,
+                .map = of_bus_isa_map,
+                .translate = of_bus_isa_translate,
+                .get_flags = of_bus_isa_get_flags,
+        },
+        /* Default */
+        {
+                .name = "default",
+                .addresses = "reg",
+                .match = NULL,
+                .count_cells = of_bus_default_count_cells,
+                .map = of_bus_default_map,
+                .translate = of_bus_default_translate,
+                .get_flags = of_bus_default_get_flags,
+        },
+};
+
+static struct of_bus *of_match_bus(struct device_node *np)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(of_busses); i++)
+                if (!of_busses[i].match || of_busses[i].match(np))
+                        return &of_busses[i];
+        BUG();
+        return NULL;
+}
+
+static int of_translate_one(struct device_node *parent, struct of_bus *bus,
+                        struct of_bus *pbus, u32 *addr,
+                        int na, int ns, int pna)
+{
+        const u32 *ranges;
+        unsigned int rlen;
+        int rone;
+        u64 offset = OF_BAD_ADDR;
+
+        /* Normally, an absence of a "ranges" property means we are
+         * crossing a non-translatable boundary, and thus the addresses
+         * below the current not cannot be converted to CPU physical ones.
+         * Unfortunately, while this is very clear in the spec, it's not
+         * what Apple understood, and they do have things like /uni-n or
+         * /ht nodes with no "ranges" property and a lot of perfectly
+         * useable mapped devices below them. Thus we treat the absence of
+         * "ranges" as equivalent to an empty "ranges" property which means
+         * a 1:1 translation at that level. It's up to the caller not to try
+         * to translate addresses that aren't supposed to be translated in
+         * the first place. --BenH.
+         */
+        ranges = of_get_property(parent, "ranges", (int *) &rlen);
+        if (ranges == NULL || rlen == 0) {
+                offset = of_read_number(addr, na);
+                memset(addr, 0, pna * 4);
+                pr_debug("OF: no ranges, 1:1 translation\n");
+                goto finish;
+        }
+
+        pr_debug("OF: walking ranges...\n");
+
+        /* Now walk through the ranges */
+        rlen /= 4;
+        rone = na + pna + ns;
+        for (; rlen >= rone; rlen -= rone, ranges += rone) {
+                offset = bus->map(addr, ranges, na, ns, pna);
+                if (offset != OF_BAD_ADDR)
+                        break;
+        }
+        if (offset == OF_BAD_ADDR) {
+                pr_debug("OF: not found !\n");
+                return 1;
+        }
+        memcpy(addr, ranges + na, 4 * pna);
+
+ finish:
+        of_dump_addr("OF: parent translation for:", addr, pna);
+        pr_debug("OF: with offset: "PRu64"\n", offset);
+
+        /* Translate it into parent bus space */
+        return pbus->translate(addr, offset, pna);
+}
+
+/*
+ * Translate an address from the device-tree into a CPU physical address,
+ * this walks up the tree and applies the various bus mappings on the
+ * way.
+ *
+ * Note: We consider that crossing any level with #size-cells == 0 to mean
+ * that translation is impossible (that is we are not dealing with a value
+ * that can be mapped to a cpu physical address). This is not really specified
+ * that way, but this is traditionally the way IBM at least do things
+ */
+u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
+{
+        struct device_node *parent = NULL;
+        struct of_bus *bus, *pbus;
+        u32 addr[OF_MAX_ADDR_CELLS];
+        int na, ns, pna, pns;
+        u64 result = OF_BAD_ADDR;
+
+        pr_debug("OF: ** translation for device %s **\n", dev->full_name);
+
+        /* Increase refcount at current level */
+        of_node_get(dev);
+
+        /* Get parent & match bus type */
+        parent = of_get_parent(dev);
+        if (parent == NULL)
+                goto bail;
+        bus = of_match_bus(parent);
+
+        /* Cound address cells & copy address locally */
+        bus->count_cells(dev, &na, &ns);
+        if (!OF_CHECK_COUNTS(na, ns)) {
+                printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
+                        dev->full_name);
+                goto bail;
+        }
+        memcpy(addr, in_addr, na * 4);
+
+        pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
+                bus->name, na, ns, parent->full_name);
+        of_dump_addr("OF: translating address:", addr, na);
+
+        /* Translate */
+        for (;;) {
+                /* Switch to parent bus */
+                of_node_put(dev);
+                dev = parent;
+                parent = of_get_parent(dev);
+
+                /* If root, we have finished */
+                if (parent == NULL) {
+                        pr_debug("OF: reached root node\n");
+                        result = of_read_number(addr, na);
+                        break;
+                }
+
+                /* Get new parent bus and counts */
+                pbus = of_match_bus(parent);
+                pbus->count_cells(dev, &pna, &pns);
+                if (!OF_CHECK_COUNTS(pna, pns)) {
+                        printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
+                                dev->full_name);
+                        break;
+                }
+
+                pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
+                        pbus->name, pna, pns, parent->full_name);
+
+                /* Apply bus translation */
+                if (of_translate_one(dev, bus, pbus, addr, na, ns, pna))
+                        break;
+
+                /* Complete the move up one level */
+                na = pna;
+                ns = pns;
+                bus = pbus;
+
+                of_dump_addr("OF: one level translation:", addr, na);
+        }
+ bail:
+        of_node_put(parent);
+        of_node_put(dev);
+
+        return result;
+}
+EXPORT_SYMBOL(of_translate_address);
+
+const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
+                        unsigned int *flags)
+{
+        const u32 *prop;
+        unsigned int psize;
+        struct device_node *parent;
+        struct of_bus *bus;
+        int onesize, i, na, ns;
+
+        /* Get parent & match bus type */
+        parent = of_get_parent(dev);
+        if (parent == NULL)
+                return NULL;
+        bus = of_match_bus(parent);
+        bus->count_cells(dev, &na, &ns);
+        of_node_put(parent);
+        if (!OF_CHECK_COUNTS(na, ns))
+                return NULL;
+
+        /* Get "reg" or "assigned-addresses" property */
+        prop = of_get_property(dev, bus->addresses, (int *) &psize);
+        if (prop == NULL)
+                return NULL;
+        psize /= 4;
+
+        onesize = na + ns;
+        for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++)
+                if (i == index) {
+                        if (size)
+                                *size = of_read_number(prop + na, ns);
+                        if (flags)
+                                *flags = bus->get_flags(prop);
+                        return prop;
+                }
+        return NULL;
+}
+EXPORT_SYMBOL(of_get_address);
+
+static int __of_address_to_resource(struct device_node *dev, const u32 *addrp,
+                                u64 size, unsigned int flags,
+                                struct resource *r)
+{
+        u64 taddr;
+
+        if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0)
+                return -EINVAL;
+        taddr = of_translate_address(dev, addrp);
+        if (taddr == OF_BAD_ADDR)
+                return -EINVAL;
+        memset(r, 0, sizeof(struct resource));
+        if (flags & IORESOURCE_IO) {
+                unsigned long port;
+                port = -1; /* pci_address_to_pio(taddr); */
+                if (port == (unsigned long)-1)
+                        return -EINVAL;
+                r->start = port;
+                r->end = port + size - 1;
+        } else {
+                r->start = taddr;
+                r->end = taddr + size - 1;
+        }
+        r->flags = flags;
+        r->name = dev->name;
+        return 0;
+}
+
+int of_address_to_resource(struct device_node *dev, int index,
+                        struct resource *r)
+{
+        const u32       *addrp;
+        u64             size;
+        unsigned int    flags;
+
+        addrp = of_get_address(dev, index, &size, &flags);
+        if (addrp == NULL)
+                return -EINVAL;
+        return __of_address_to_resource(dev, addrp, size, flags, r);
+}
+EXPORT_SYMBOL_GPL(of_address_to_resource);
+
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
+                unsigned long *busno, unsigned long *phys, unsigned long *size)
+{
+        const u32 *dma_window;
+        u32 cells;
+        const unsigned char *prop;
+
+        dma_window = dma_window_prop;
+
+        /* busno is always one cell */
+        *busno = *(dma_window++);
+
+        prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
+        if (!prop)
+                prop = of_get_property(dn, "#address-cells", NULL);
+
+        cells = prop ? *(u32 *)prop : of_n_addr_cells(dn);
+        *phys = of_read_number(dma_window, cells);
+
+        dma_window += cells;
+
+        prop = of_get_property(dn, "ibm,#dma-size-cells", NULL);
+        cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
+        *size = of_read_number(dma_window, cells);
+}
+
+/*
+ * Interrupt remapper
+ */
+
+static unsigned int of_irq_workarounds;
+static struct device_node *of_irq_dflt_pic;
+
+static struct device_node *of_irq_find_parent(struct device_node *child)
+{
+        struct device_node *p;
+        const phandle *parp;
+
+        if (!of_node_get(child))
+                return NULL;
+
+        do {
+                parp = of_get_property(child, "interrupt-parent", NULL);
+                if (parp == NULL)
+                        p = of_get_parent(child);
+                else {
+                        if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
+                                p = of_node_get(of_irq_dflt_pic);
+                        else
+                                p = of_find_node_by_phandle(*parp);
+                }
+                of_node_put(child);
+                child = p;
+        } while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL);
+
+        return p;
+}
+
+/* This doesn't need to be called if you don't have any special workaround
+ * flags to pass
+ */
+void of_irq_map_init(unsigned int flags)
+{
+        of_irq_workarounds = flags;
+
+        /* OldWorld, don't bother looking at other things */
+        if (flags & OF_IMAP_OLDWORLD_MAC)
+                return;
+
+        /* If we don't have phandles, let's try to locate a default interrupt
+         * controller (happens when booting with BootX). We do a first match
+         * here, hopefully, that only ever happens on machines with one
+         * controller.
+         */
+        if (flags & OF_IMAP_NO_PHANDLE) {
+                struct device_node *np;
+
+                for (np = NULL; (np = of_find_all_nodes(np)) != NULL;) {
+                        if (of_get_property(np, "interrupt-controller", NULL)
+                                == NULL)
+                                continue;
+                        /* Skip /chosen/interrupt-controller */
+                        if (strcmp(np->name, "chosen") == 0)
+                                continue;
+                        /* It seems like at least one person on this planet
+                         * wants to use BootX on a machine with an AppleKiwi
+                         * controller which happens to pretend to be an
+                         * interrupt controller too.
+                         */
+                        if (strcmp(np->name, "AppleKiwi") == 0)
+                                continue;
+                        /* I think we found one ! */
+                        of_irq_dflt_pic = np;
+                        break;
+                }
+        }
+
+}
+
+int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
+                const u32 *addr, struct of_irq *out_irq)
+{
+        struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
+        const u32 *tmp, *imap, *imask;
+        u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
+        int imaplen, match, i;
+
+        pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],"
+                "ointsize=%d\n",
+                parent->full_name, intspec[0], intspec[1], ointsize);
+
+        ipar = of_node_get(parent);
+
+        /* First get the #interrupt-cells property of the current cursor
+         * that tells us how to interpret the passed-in intspec. If there
+         * is none, we are nice and just walk up the tree
+         */
+        do {
+                tmp = of_get_property(ipar, "#interrupt-cells", NULL);
+                if (tmp != NULL) {
+                        intsize = *tmp;
+                        break;
+                }
+                tnode = ipar;
+                ipar = of_irq_find_parent(ipar);
+                of_node_put(tnode);
+        } while (ipar);
+        if (ipar == NULL) {
+                pr_debug(" -> no parent found !\n");
+                goto fail;
+        }
+
+        pr_debug("of_irq_map_raw: ipar=%s, size=%d\n",
+                        ipar->full_name, intsize);
+
+        if (ointsize != intsize)
+                return -EINVAL;
+
+        /* Look for this #address-cells. We have to implement the old linux
+         * trick of looking for the parent here as some device-trees rely on it
+         */
+        old = of_node_get(ipar);
+        do {
+                tmp = of_get_property(old, "#address-cells", NULL);
+                tnode = of_get_parent(old);
+                of_node_put(old);
+                old = tnode;
+        } while (old && tmp == NULL);
+        of_node_put(old);
+        old = NULL;
+        addrsize = (tmp == NULL) ? 2 : *tmp;
+
+        pr_debug(" -> addrsize=%d\n", addrsize);
+
+        /* Now start the actual "proper" walk of the interrupt tree */
+        while (ipar != NULL) {
+                /* Now check if cursor is an interrupt-controller and if it is
+                 * then we are done
+                 */
+                if (of_get_property(ipar, "interrupt-controller", NULL) !=
+                                NULL) {
+                        pr_debug(" -> got it !\n");
+                        memcpy(out_irq->specifier, intspec,
+                                intsize * sizeof(u32));
+                        out_irq->size = intsize;
+                        out_irq->controller = ipar;
+                        of_node_put(old);
+                        return 0;
+                }
+
+                /* Now look for an interrupt-map */
+                imap = of_get_property(ipar, "interrupt-map", &imaplen);
+                /* No interrupt map, check for an interrupt parent */
+                if (imap == NULL) {
+                        pr_debug(" -> no map, getting parent\n");
+                        newpar = of_irq_find_parent(ipar);
+                        goto skiplevel;
+                }
+                imaplen /= sizeof(u32);
+
+                /* Look for a mask */
+                imask = of_get_property(ipar, "interrupt-map-mask", NULL);
+
+                /* If we were passed no "reg" property and we attempt to parse
+                 * an interrupt-map, then #address-cells must be 0.
+                 * Fail if it's not.
+                 */
+                if (addr == NULL && addrsize != 0) {
+                        pr_debug(" -> no reg passed in when needed !\n");
+                        goto fail;
+                }
+
+                /* Parse interrupt-map */
+                match = 0;
+                while (imaplen > (addrsize + intsize + 1) && !match) {
+                        /* Compare specifiers */
+                        match = 1;
+                        for (i = 0; i < addrsize && match; ++i) {
+                                u32 mask = imask ? imask[i] : 0xffffffffu;
+                                match = ((addr[i] ^ imap[i]) & mask) == 0;
+                        }
+                        for (; i < (addrsize + intsize) && match; ++i) {
+                                u32 mask = imask ? imask[i] : 0xffffffffu;
+                                match =
+                                        ((intspec[i-addrsize] ^ imap[i])
+                                                & mask) == 0;
+                        }
+                        imap += addrsize + intsize;
+                        imaplen -= addrsize + intsize;
+
+                        pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);
+
+                        /* Get the interrupt parent */
+                        if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
+                                newpar = of_node_get(of_irq_dflt_pic);
+                        else
+                                newpar =
+                                        of_find_node_by_phandle((phandle)*imap);
+                        imap++;
+                        --imaplen;
+
+                        /* Check if not found */
+                        if (newpar == NULL) {
+                                pr_debug(" -> imap parent not found !\n");
+                                goto fail;
+                        }
+
+                        /* Get #interrupt-cells and #address-cells of new
+                         * parent
+                         */
+                        tmp = of_get_property(newpar, "#interrupt-cells", NULL);
+                        if (tmp == NULL) {
+                                pr_debug(" -> parent lacks "
+                                                "#interrupt-cells!\n");
+                                goto fail;
+                        }
+                        newintsize = *tmp;
+                        tmp = of_get_property(newpar, "#address-cells", NULL);
+                        newaddrsize = (tmp == NULL) ? 0 : *tmp;
+
+                        pr_debug(" -> newintsize=%d, newaddrsize=%d\n",
+                                newintsize, newaddrsize);
+
+                        /* Check for malformed properties */
+                        if (imaplen < (newaddrsize + newintsize))
+                                goto fail;
+
+                        imap += newaddrsize + newintsize;
+                        imaplen -= newaddrsize + newintsize;
+
+                        pr_debug(" -> imaplen=%d\n", imaplen);
+                }
+                if (!match)
+                        goto fail;
+
+                of_node_put(old);
+                old = of_node_get(newpar);
+                addrsize = newaddrsize;
+                intsize = newintsize;
+                intspec = imap - intsize;
+                addr = intspec - addrsize;
+
+skiplevel:
+                /* Iterate again with new parent */
+                pr_debug(" -> new parent: %s\n",
+                                newpar ? newpar->full_name : "<>");
+                of_node_put(ipar);
+                ipar = newpar;
+                newpar = NULL;
+        }
+fail:
+        of_node_put(ipar);
+        of_node_put(old);
+        of_node_put(newpar);
+
+        return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(of_irq_map_raw);
+
+int of_irq_map_one(struct device_node *device,
+                        int index, struct of_irq *out_irq)
+{
+        struct device_node *p;
+        const u32 *intspec, *tmp, *addr;
+        u32 intsize, intlen;
+        int res;
+
+        pr_debug("of_irq_map_one: dev=%s, index=%d\n",
+                        device->full_name, index);
+
+        /* Get the interrupts property */
+        intspec = of_get_property(device, "interrupts", (int *) &intlen);
+        if (intspec == NULL)
+                return -EINVAL;
+        intlen /= sizeof(u32);
+
+        pr_debug(" intspec=%d intlen=%d\n", *intspec, intlen);
+
+        /* Get the reg property (if any) */
+        addr = of_get_property(device, "reg", NULL);
+
+        /* Look for the interrupt parent. */
+        p = of_irq_find_parent(device);
+        if (p == NULL)
+                return -EINVAL;
+
+        /* Get size of interrupt specifier */
+        tmp = of_get_property(p, "#interrupt-cells", NULL);
+        if (tmp == NULL) {
+                of_node_put(p);
+                return -EINVAL;
+        }
+        intsize = *tmp;
+
+        pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
+
+        /* Check index */
+        if ((index + 1) * intsize > intlen)
+                return -EINVAL;
+
+        /* Get new specifier and map it */
+        res = of_irq_map_raw(p, intspec + index * intsize, intsize,
+                                addr, out_irq);
+        of_node_put(p);
+        return res;
+}
+EXPORT_SYMBOL_GPL(of_irq_map_one);
+
+/**
+ * Search the device tree for the best MAC address to use.  'mac-address' is
+ * checked first, because that is supposed to contain to "most recent" MAC
+ * address. If that isn't set, then 'local-mac-address' is checked next,
+ * because that is the default address.  If that isn't set, then the obsolete
+ * 'address' is checked, just in case we're using an old device tree.
+ *
+ * Note that the 'address' property is supposed to contain a virtual address of
+ * the register set, but some DTS files have redefined that property to be the
+ * MAC address.
+ *
+ * All-zero MAC addresses are rejected, because those could be properties that
+ * exist in the device tree, but were not set by U-Boot.  For example, the
+ * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
+ * addresses.  Some older U-Boots only initialized 'local-mac-address'.  In
+ * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
+ * but is all zeros.
+*/
+const void *of_get_mac_address(struct device_node *np)
+{
+        struct property *pp;
+
+        pp = of_find_property(np, "mac-address", NULL);
+        if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
+                return pp->value;
+
+        pp = of_find_property(np, "local-mac-address", NULL);
+        if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
+                return pp->value;
+
+        pp = of_find_property(np, "address", NULL);
+        if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
+                return pp->value;
+
+        return NULL;
+}
+EXPORT_SYMBOL(of_get_mac_address);
+
+int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
+{
+        struct of_irq out_irq;
+        int irq;
+        int res;
+
+        res = of_irq_map_one(dev, index, &out_irq);
+
+        /* Get irq for the device */
+        if (res) {
+                pr_debug("IRQ not found... code = %d", res);
+                return NO_IRQ;
+        }
+        /* Assuming single interrupt controller... */
+        irq = out_irq.specifier[0];
+
+        pr_debug("IRQ found = %d", irq);
+
+        /* Only dereference the resource if both the
+         * resource and the irq are valid. */
+        if (r && irq != NO_IRQ) {
+                r->start = r->end = irq;
+                r->flags = IORESOURCE_IRQ;
+        }
+
+        return irq;
+}
+EXPORT_SYMBOL_GPL(of_irq_to_resource);
+
+void __iomem *of_iomap(struct device_node *np, int index)
+{
+        struct resource res;
+
+        if (of_address_to_resource(np, index, &res))
+                return NULL;
+
+        return ioremap(res.start, 1 + res.end - res.start);
+}
+EXPORT_SYMBOL(of_iomap);
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
new file mode 100644
index 000000000000..b86aa623e36d
--- /dev/null
+++ b/arch/microblaze/kernel/ptrace.c
@@ -0,0 +1,181 @@
+/*
+ * `ptrace' system call
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2004-2007 John Williams <john.williams@petalogix.com>
+ *
+ * derived from arch/v850/kernel/ptrace.c
+ *
+ * Copyright (C) 2002,03 NEC Electronics Corporation
+ * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
+ *
+ * Derived from arch/mips/kernel/ptrace.c:
+ *
+ * Copyright (C) 1992 Ross Biro
+ * Copyright (C) Linus Torvalds
+ * Copyright (C) 1994, 95, 96, 97, 98, 2000 Ralf Baechle
+ * Copyright (C) 1996 David S. Miller
+ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999 MIPS Technologies, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/ptrace.h>
+#include <linux/signal.h>
+
+#include <linux/errno.h>
+#include <asm/processor.h>
+#include <linux/uaccess.h>
+#include <asm/asm-offsets.h>
+
+/* Returns the address where the register at REG_OFFS in P is stashed away. */
+static microblaze_reg_t *reg_save_addr(unsigned reg_offs,
+                                        struct task_struct *t)
+{
+        struct pt_regs *regs;
+
+        /*
+         * Three basic cases:
+         *
+         * (1)  A register normally saved before calling the scheduler, is
+         *      available in the kernel entry pt_regs structure at the top
+         *      of the kernel stack. The kernel trap/irq exit path takes
+         *      care to save/restore almost all registers for ptrace'd
+         *      processes.
+         *
+         * (2)  A call-clobbered register, where the process P entered the
+         *      kernel via [syscall] trap, is not stored anywhere; that's
+         *      OK, because such registers are not expected to be preserved
+         *      when the trap returns anyway (so we don't actually bother to
+         *      test for this case).
+         *
+         * (3)  A few registers not used at all by the kernel, and so
+         *      normally never saved except by context-switches, are in the
+         *      context switch state.
+         */
+
+        /* Register saved during kernel entry (or not available). */
+        regs = task_pt_regs(t);
+
+        return (microblaze_reg_t *)((char *)regs + reg_offs);
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+        int rval;
+        unsigned long val = 0;
+        unsigned long copied;
+
+        switch (request) {
+        case PTRACE_PEEKTEXT: /* read word at location addr. */
+        case PTRACE_PEEKDATA:
+                pr_debug("PEEKTEXT/PEEKDATA at %08lX\n", addr);
+                copied = access_process_vm(child, addr, &val, sizeof(val), 0);
+                rval = -EIO;
+                if (copied != sizeof(val))
+                        break;
+                rval = put_user(val, (unsigned long *)data);
+                break;
+
+        case PTRACE_POKETEXT: /* write the word at location addr. */
+        case PTRACE_POKEDATA:
+                pr_debug("POKETEXT/POKEDATA to %08lX\n", addr);
+                rval = 0;
+                if (access_process_vm(child, addr, &data, sizeof(data), 1)
+                    == sizeof(data))
+                        break;
+                rval = -EIO;
+                break;
+
+        /* Read/write the word at location ADDR in the registers. */
+        case PTRACE_PEEKUSR:
+        case PTRACE_POKEUSR:
+                pr_debug("PEEKUSR/POKEUSR : 0x%08lx\n", addr);
+                rval = 0;
+                if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
+                        /*
+                         * Special requests that don't actually correspond
+                         * to offsets in struct pt_regs.
+                         */
+                        if (addr == PT_TEXT_ADDR) {
+                                val = child->mm->start_code;
+                        } else if (addr == PT_DATA_ADDR) {
+                                val = child->mm->start_data;
+                        } else if (addr == PT_TEXT_LEN) {
+                                val = child->mm->end_code
+                                        - child->mm->start_code;
+                        } else {
+                                rval = -EIO;
+                        }
+                } else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
+                        microblaze_reg_t *reg_addr = reg_save_addr(addr, child);
+                        if (request == PTRACE_PEEKUSR)
+                                val = *reg_addr;
+                        else
+                                *reg_addr = data;
+                } else
+                        rval = -EIO;
+
+                if (rval == 0 && request == PTRACE_PEEKUSR)
+                        rval = put_user(val, (unsigned long *)data);
+                break;
+        /* Continue and stop at next (return from) syscall */
+        case PTRACE_SYSCALL:
+                pr_debug("PTRACE_SYSCALL\n");
+        case PTRACE_SINGLESTEP:
+                pr_debug("PTRACE_SINGLESTEP\n");
+        /* Restart after a signal.  */
+        case PTRACE_CONT:
+                pr_debug("PTRACE_CONT\n");
+                rval = -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;
+                pr_debug("wakeup_process\n");
+                wake_up_process(child);
+                rval = 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:
+                pr_debug("PTRACE_KILL\n");
+                rval = 0;
+                if (child->exit_state == EXIT_ZOMBIE)   /* already dead */
+                        break;
+                child->exit_code = SIGKILL;
+                wake_up_process(child);
+                break;
+
+        case PTRACE_DETACH: /* detach a process that was attached. */
+                pr_debug("PTRACE_DETACH\n");
+                rval = ptrace_detach(child, data);
+                break;
+        default:
+                /* rval = ptrace_request(child, request, addr, data); noMMU */
+                rval = -EIO;
+        }
+        return rval;
+}
+
+void ptrace_disable(struct task_struct *child)
+{
+        /* nothing to do */
+}
diff --git a/arch/microblaze/kernel/selfmod.c b/arch/microblaze/kernel/selfmod.c
new file mode 100644
index 000000000000..89508bdc9f3c
--- /dev/null
+++ b/arch/microblaze/kernel/selfmod.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2009 PetaLogix
+ *
+ * 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.
+ */
+
+#include <linux/interrupt.h>
+#include <asm/selfmod.h>
+
+#undef DEBUG
+
+#if __GNUC__ > 3
+#error GCC 4 unsupported SELFMOD. Please disable SELFMOD from menuconfig.
+#endif
+
+#define OPCODE_IMM              0xB0000000
+#define OPCODE_LWI              0xE8000000
+#define OPCODE_LWI_MASK         0xEC000000
+#define OPCODE_RTSD             0xB60F0008 /* return from func: rtsd r15, 8 */
+#define OPCODE_ADDIK            0x30000000
+#define OPCODE_ADDIK_MASK       0xFC000000
+
+#define IMM_BASE        (OPCODE_IMM | (BARRIER_BASE_ADDR >> 16))
+#define LWI_BASE        (OPCODE_LWI | (BARRIER_BASE_ADDR & 0x0000ff00))
+#define LWI_BASE_MASK   (OPCODE_LWI_MASK | (BARRIER_BASE_ADDR & 0x0000ff00))
+#define ADDIK_BASE      (OPCODE_ADDIK | (BARRIER_BASE_ADDR & 0x0000ff00))
+#define ADDIK_BASE_MASK (OPCODE_ADDIK_MASK | (BARRIER_BASE_ADDR & 0x0000ff00))
+
+#define MODIFY_INSTR {                                          \
+        pr_debug("%s: curr instr, (%d):0x%x, next(%d):0x%x\n",          \
+                __func__, i, addr[i], i + 1, addr[i + 1]);              \
+        addr[i] = OPCODE_IMM + (base >> 16);                            \
+        /* keep instruction opcode and add only last 16bits */          \
+        addr[i + 1] = (addr[i + 1] & 0xffff00ff) + (base & 0xffff);     \
+        __invalidate_icache(addr[i]);                                   \
+        __invalidate_icache(addr[i + 1]);                               \
+        pr_debug("%s: hack instr, (%d):0x%x, next(%d):0x%x\n",          \
+                __func__, i, addr[i], i + 1, addr[i + 1]); }
+
+/* NOTE
+ * self-modified part of code for improvement of interrupt controller
+ * save instruction in interrupt rutine
+ */
+void selfmod_function(const int *arr_fce, const unsigned int base)
+{
+        unsigned int flags, i, j, *addr = NULL;
+
+        local_irq_save(flags);
+        __disable_icache();
+
+        /* zero terminated array */
+        for (j = 0; arr_fce[j] != 0; j++) {
+                /* get start address of function */
+                addr = (unsigned int *) arr_fce[j];
+                pr_debug("%s: func(%d) at 0x%x\n",
+                                        __func__, j, (unsigned int) addr);
+                for (i = 0; ; i++) {
+                        pr_debug("%s: instruction code at %d: 0x%x\n",
+                                                __func__, i, addr[i]);
+                        if (addr[i] == IMM_BASE) {
+                                /* detecting of lwi (0xE8) or swi (0xF8) instr
+                                 * I can detect both opcode with one mask */
+                                if ((addr[i + 1] & LWI_BASE_MASK) == LWI_BASE) {
+                                        MODIFY_INSTR;
+                                } else /* detection addik for ack */
+                                if ((addr[i + 1] & ADDIK_BASE_MASK) ==
+                                                                ADDIK_BASE) {
+                                        MODIFY_INSTR;
+                                }
+                        } else if (addr[i] == OPCODE_RTSD) {
+                                /* return from function means end of function */
+                                pr_debug("%s: end of array %d\n", __func__, i);
+                                break;
+                        }
+                }
+        }
+        local_irq_restore(flags);
+} /* end of self-modified code */
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
new file mode 100644
index 000000000000..eb6b41758e23
--- /dev/null
+++ b/arch/microblaze/kernel/setup.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/cpu.h>
+#include <linux/initrd.h>
+#include <linux/console.h>
+#include <linux/debugfs.h>
+
+#include <asm/setup.h>
+#include <asm/sections.h>
+#include <asm/page.h>
+#include <linux/io.h>
+#include <linux/bug.h>
+#include <linux/param.h>
+#include <linux/cache.h>
+#include <asm/cacheflush.h>
+#include <asm/entry.h>
+#include <asm/cpuinfo.h>
+
+#include <asm/system.h>
+#include <asm/prom.h>
+#include <asm/pgtable.h>
+
+DEFINE_PER_CPU(unsigned int, KSP);      /* Saved kernel stack pointer */
+DEFINE_PER_CPU(unsigned int, KM);       /* Kernel/user mode */
+DEFINE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
+DEFINE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
+DEFINE_PER_CPU(unsigned int, CURRENT_SAVE);     /* Saved current pointer */
+
+unsigned int boot_cpuid;
+char cmd_line[COMMAND_LINE_SIZE];
+
+void __init setup_arch(char **cmdline_p)
+{
+#ifdef CONFIG_CMDLINE_FORCE
+        strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+        strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif
+        *cmdline_p = cmd_line;
+
+        console_verbose();
+
+        unflatten_device_tree();
+
+        /* NOTE I think that this function is not necessary to call */
+        /* irq_early_init(); */
+        setup_cpuinfo();
+
+        __invalidate_icache_all();
+        __enable_icache();
+
+        __invalidate_dcache_all();
+        __enable_dcache();
+
+        panic_timeout = 120;
+
+        setup_memory();
+
+#if defined(CONFIG_SELFMOD_INTC) || defined(CONFIG_SELFMOD_TIMER)
+        printk(KERN_NOTICE "Self modified code enable\n");
+#endif
+
+#ifdef CONFIG_VT
+#if defined(CONFIG_XILINX_CONSOLE)
+        conswitchp = &xil_con;
+#elif defined(CONFIG_DUMMY_CONSOLE)
+        conswitchp = &dummy_con;
+#endif
+#endif
+}
+
+#ifdef CONFIG_MTD_UCLINUX
+/* Handle both romfs and cramfs types, without generating unnecessary
+ code (ie no point checking for CRAMFS if it's not even enabled) */
+inline unsigned get_romfs_len(unsigned *addr)
+{
+#ifdef CONFIG_ROMFS_FS
+        if (memcmp(&addr[0], "-rom1fs-", 8) == 0) /* romfs */
+                return be32_to_cpu(addr[2]);
+#endif
+
+#ifdef CONFIG_CRAMFS
+        if (addr[0] == le32_to_cpu(0x28cd3d45)) /* cramfs */
+                return le32_to_cpu(addr[1]);
+#endif
+        return 0;
+}
+#endif  /* CONFIG_MTD_UCLINUX_EBSS */
+
+void __init machine_early_init(const char *cmdline, unsigned int ram,
+                unsigned int fdt)
+{
+        unsigned long *src, *dst = (unsigned long *)0x0;
+
+/* clearing bss section */
+        memset(__bss_start, 0, __bss_stop-__bss_start);
+        memset(_ssbss, 0, _esbss-_ssbss);
+
+        /*
+         * Copy command line passed from bootloader, or use default
+         * if none provided, or forced
+         */
+#ifndef CONFIG_CMDLINE_BOOL
+        if (cmdline && cmdline[0] != '\0')
+                strlcpy(cmd_line, cmdline, COMMAND_LINE_SIZE);
+#endif
+
+/* initialize device tree for usage in early_printk */
+        early_init_devtree((void *)_fdt_start);
+
+#ifdef CONFIG_EARLY_PRINTK
+        setup_early_printk(NULL);
+#endif
+
+        early_printk("Ramdisk addr 0x%08x, FDT 0x%08x\n", ram, fdt);
+        printk(KERN_NOTICE "Found FDT at 0x%08x\n", fdt);
+
+#ifdef CONFIG_MTD_UCLINUX
+        {
+                int size;
+                unsigned int romfs_base;
+                romfs_base = (ram ? ram : (unsigned int)&__init_end);
+                /* if CONFIG_MTD_UCLINUX_EBSS is defined, assume ROMFS is at the
+                 * end of kernel, which is ROMFS_LOCATION defined above. */
+                size = PAGE_ALIGN(get_romfs_len((unsigned *)romfs_base));
+                early_printk("Found romfs @ 0x%08x (0x%08x)\n",
+                                romfs_base, size);
+                early_printk("#### klimit %p ####\n", klimit);
+                BUG_ON(size < 0); /* What else can we do? */
+
+                /* Use memmove to handle likely case of memory overlap */
+                early_printk("Moving 0x%08x bytes from 0x%08x to 0x%08x\n",
+                        size, romfs_base, (unsigned)&_ebss);
+                memmove(&_ebss, (int *)romfs_base, size);
+
+                /* update klimit */
+                klimit += PAGE_ALIGN(size);
+                early_printk("New klimit: 0x%08x\n", (unsigned)klimit);
+        }
+#endif
+
+        for (src = __ivt_start; src < __ivt_end; src++, dst++)
+                *dst = *src;
+
+        /* Initialize global data */
+        per_cpu(KM, 0) = 0x1;   /* We start in kernel mode */
+        per_cpu(CURRENT_SAVE, 0) = (unsigned long)current;
+}
+
+#ifdef CONFIG_DEBUG_FS
+struct dentry *of_debugfs_root;
+
+static int microblaze_debugfs_init(void)
+{
+        of_debugfs_root = debugfs_create_dir("microblaze", NULL);
+
+        return of_debugfs_root == NULL;
+}
+arch_initcall(microblaze_debugfs_init);
+#endif
+
+void machine_restart(char *cmd)
+{
+        printk(KERN_NOTICE "Machine restart...\n");
+        dump_stack();
+        while (1)
+                ;
+}
+
+void machine_shutdown(void)
+{
+        printk(KERN_NOTICE "Machine shutdown...\n");
+        while (1)
+                ;
+}
+
+void machine_halt(void)
+{
+        printk(KERN_NOTICE "Machine halt...\n");
+        while (1)
+                ;
+}
+
+void machine_power_off(void)
+{
+        printk(KERN_NOTICE "Machine power off...\n");
+        while (1)
+                ;
+}
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
new file mode 100644
index 000000000000..3889cf45fa71
--- /dev/null
+++ b/arch/microblaze/kernel/signal.c
@@ -0,0 +1,537 @@
+/*
+ * Signal handling
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2003,2004 John Williams <jwilliams@itee.uq.edu.au>
+ * Copyright (C) 2001 NEC Corporation
+ * Copyright (C) 2001 Miles Bader <miles@gnu.org>
+ * Copyright (C) 1999,2000 Niibe Yutaka & Kaz Kojima
+ * Copyright (C) 1991,1992 Linus Torvalds
+ *
+ * 1997-11-28 Modified for POSIX.1b signals by Richard Henderson
+ *
+ * This file was was derived from the sh version, arch/sh/kernel/signal.c
+ *
+ * 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.
+ */
+
+#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/personality.h>
+#include <linux/percpu.h>
+#include <linux/linkage.h>
+#include <asm/entry.h>
+#include <asm/ucontext.h>
+#include <linux/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
+#include <linux/syscalls.h>
+#include <asm/cacheflush.h>
+#include <asm/syscalls.h>
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_sycall);
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+asmlinkage int
+sys_sigsuspend(old_sigset_t mask, 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->r3 = -EINTR;
+        while (1) {
+                current->state = TASK_INTERRUPTIBLE;
+                schedule();
+                if (do_signal(regs, &saveset, 1))
+                        return -EINTR;
+        }
+}
+
+asmlinkage int
+sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
+                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->r3 = -EINTR;
+        while (1) {
+                current->state = TASK_INTERRUPTIBLE;
+                schedule();
+                if (do_signal(regs, &saveset, 1))
+                        return -EINTR;
+        }
+}
+
+asmlinkage int
+sys_sigaction(int sig, const struct old_sigaction *act,
+                struct old_sigaction *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;
+}
+
+asmlinkage int
+sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+                struct pt_regs *regs)
+{
+        return do_sigaltstack(uss, uoss, regs->r1);
+}
+
+/*
+ * Do a signal return; undo the signal stack.
+ */
+
+struct sigframe {
+        struct sigcontext sc;
+        unsigned long extramask[_NSIG_WORDS-1];
+        unsigned long tramp[2]; /* signal trampoline */
+};
+
+struct rt_sigframe {
+        struct siginfo info;
+        struct ucontext uc;
+        unsigned long tramp[2]; /* signal trampoline */
+};
+
+static int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *rval_p)
+{
+        unsigned int err = 0;
+
+#define COPY(x)         {err |= __get_user(regs->x, &sc->regs.x); }
+        COPY(r0);
+        COPY(r1);
+        COPY(r2);       COPY(r3);       COPY(r4);       COPY(r5);
+        COPY(r6);       COPY(r7);       COPY(r8);       COPY(r9);
+        COPY(r10);      COPY(r11);      COPY(r12);      COPY(r13);
+        COPY(r14);      COPY(r15);      COPY(r16);      COPY(r17);
+        COPY(r18);      COPY(r19);      COPY(r20);      COPY(r21);
+        COPY(r22);      COPY(r23);      COPY(r24);      COPY(r25);
+        COPY(r26);      COPY(r27);      COPY(r28);      COPY(r29);
+        COPY(r30);      COPY(r31);
+        COPY(pc);       COPY(ear);      COPY(esr);      COPY(fsr);
+#undef COPY
+
+        *rval_p = regs->r3;
+
+        return err;
+}
+
+asmlinkage int sys_sigreturn(struct pt_regs *regs)
+{
+        struct sigframe *frame = (struct sigframe *)regs->r1;
+        sigset_t set;
+        int rval;
+
+        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+                goto badframe;
+
+        if (__get_user(set.sig[0], &frame->sc.oldmask)
+                || (_NSIG_WORDS > 1
+                && __copy_from_user(&set.sig[1], &frame->extramask,
+                                        sizeof(frame->extramask))))
+                goto badframe;
+
+        sigdelsetmask(&set, ~_BLOCKABLE);
+
+        spin_lock_irq(&current->sighand->siglock);
+        current->blocked = set;
+        recalc_sigpending();
+        spin_unlock_irq(&current->sighand->siglock);
+
+        if (restore_sigcontext(regs, &frame->sc, &rval))
+                goto badframe;
+        return rval;
+
+badframe:
+        force_sig(SIGSEGV, current);
+        return 0;
+}
+
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
+{
+        struct rt_sigframe *frame = (struct rt_sigframe *)regs->r1;
+        sigset_t set;
+        stack_t st;
+        int rval;
+
+        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+                goto badframe;
+
+        if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+                goto badframe;
+
+        sigdelsetmask(&set, ~_BLOCKABLE);
+        spin_lock_irq(&current->sighand->siglock);
+        current->blocked = set;
+        recalc_sigpending();
+        spin_unlock_irq(&current->sighand->siglock);
+
+        if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
+                goto badframe;
+
+        if (__copy_from_user((void *)&st, &frame->uc.uc_stack, sizeof(st)))
+                goto badframe;
+        /* It is more difficult to avoid calling this function than to
+         call it and ignore errors. */
+        do_sigaltstack(&st, NULL, regs->r1);
+
+        return rval;
+
+badframe:
+        force_sig(SIGSEGV, current);
+        return 0;
+}
+
+/*
+ * Set up a signal frame.
+ */
+
+static int
+setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
+                unsigned long mask)
+{
+        int err = 0;
+
+#define COPY(x)         {err |= __put_user(regs->x, &sc->regs.x); }
+        COPY(r0);
+        COPY(r1);
+        COPY(r2);       COPY(r3);       COPY(r4);       COPY(r5);
+        COPY(r6);       COPY(r7);       COPY(r8);       COPY(r9);
+        COPY(r10);      COPY(r11);      COPY(r12);      COPY(r13);
+        COPY(r14);      COPY(r15);      COPY(r16);      COPY(r17);
+        COPY(r18);      COPY(r19);      COPY(r20);      COPY(r21);
+        COPY(r22);      COPY(r23);      COPY(r24);      COPY(r25);
+        COPY(r26);      COPY(r27);      COPY(r28);      COPY(r29);
+        COPY(r30);      COPY(r31);
+        COPY(pc);       COPY(ear);      COPY(esr);      COPY(fsr);
+#undef COPY
+
+        err |= __put_user(mask, &sc->oldmask);
+
+        return err;
+}
+
+/*
+ * Determine which stack to use..
+ */
+static inline void *
+get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
+{
+        /* Default to using normal stack */
+        unsigned long sp = regs->r1;
+
+        if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && !on_sig_stack(sp))
+                sp = current->sas_ss_sp + current->sas_ss_size;
+
+        return (void *)((sp - frame_size) & -8UL);
+}
+
+static void setup_frame(int sig, struct k_sigaction *ka,
+                        sigset_t *set, struct pt_regs *regs)
+{
+        struct sigframe *frame;
+        int err = 0;
+        int signal;
+
+        frame = get_sigframe(ka, regs, sizeof(*frame));
+
+        if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+                goto give_sigsegv;
+
+        signal = current_thread_info()->exec_domain
+                && current_thread_info()->exec_domain->signal_invmap
+                && sig < 32
+                ? current_thread_info()->exec_domain->signal_invmap[sig]
+                : sig;
+
+        err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
+
+        if (_NSIG_WORDS > 1) {
+                err |= __copy_to_user(frame->extramask, &set->sig[1],
+                                        sizeof(frame->extramask));
+        }
+
+        /* Set up to return from userspace. If provided, use a stub
+         already in userspace. */
+        /* minus 8 is offset to cater for "rtsd r15,8" offset */
+        if (ka->sa.sa_flags & SA_RESTORER) {
+                regs->r15 = ((unsigned long)ka->sa.sa_restorer)-8;
+        } else {
+                /* Note, these encodings are _big endian_! */
+
+                /* addi r12, r0, __NR_sigreturn */
+                err |= __put_user(0x31800000 | __NR_sigreturn ,
+                                frame->tramp + 0);
+                /* brki r14, 0x8 */
+                err |= __put_user(0xb9cc0008, frame->tramp + 1);
+
+                /* Return from sighandler will jump to the tramp.
+                 Negative 8 offset because return is rtsd r15, 8 */
+                regs->r15 = ((unsigned long)frame->tramp)-8;
+
+                __invalidate_cache_sigtramp((unsigned long)frame->tramp);
+        }
+
+        if (err)
+                goto give_sigsegv;
+
+        /* Set up registers for signal handler */
+        regs->r1 = (unsigned long) frame;
+        /* Signal handler args: */
+        regs->r5 = signal; /* Arg 0: signum */
+        regs->r6 = (unsigned long) &frame->sc; /* arg 1: sigcontext */
+
+        /* Offset of 4 to handle microblaze rtid r14, 0 */
+        regs->pc = (unsigned long)ka->sa.sa_handler;
+
+        set_fs(USER_DS);
+
+#ifdef DEBUG_SIG
+        printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
+                current->comm, current->pid, frame, regs->pc);
+#endif
+
+        return;
+
+give_sigsegv:
+        if (sig == SIGSEGV)
+                ka->sa.sa_handler = SIG_DFL;
+        force_sig(SIGSEGV, current);
+}
+
+static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+                        sigset_t *set, struct pt_regs *regs)
+{
+        struct rt_sigframe *frame;
+        int err = 0;
+        int signal;
+
+        frame = get_sigframe(ka, regs, sizeof(*frame));
+
+        if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+                goto give_sigsegv;
+
+        signal = current_thread_info()->exec_domain
+                && current_thread_info()->exec_domain->signal_invmap
+                && sig < 32
+                ? current_thread_info()->exec_domain->signal_invmap[sig]
+                : sig;
+
+        err |= copy_siginfo_to_user(&frame->info, info);
+
+        /* Create the ucontext. */
+        err |= __put_user(0, &frame->uc.uc_flags);
+        err |= __put_user(0, &frame->uc.uc_link);
+        err |= __put_user((void *)current->sas_ss_sp,
+                        &frame->uc.uc_stack.ss_sp);
+        err |= __put_user(sas_ss_flags(regs->r1),
+                        &frame->uc.uc_stack.ss_flags);
+        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+        err |= setup_sigcontext(&frame->uc.uc_mcontext,
+                        regs, set->sig[0]);
+        err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+        /* Set up to return from userspace. If provided, use a stub
+         already in userspace. */
+        /* minus 8 is offset to cater for "rtsd r15,8" */
+        if (ka->sa.sa_flags & SA_RESTORER) {
+                regs->r15 = ((unsigned long)ka->sa.sa_restorer)-8;
+        } else {
+                /* addi r12, r0, __NR_sigreturn */
+                err |= __put_user(0x31800000 | __NR_rt_sigreturn ,
+                                frame->tramp + 0);
+                /* brki r14, 0x8 */
+                err |= __put_user(0xb9cc0008, frame->tramp + 1);
+
+                /* Return from sighandler will jump to the tramp.
+                 Negative 8 offset because return is rtsd r15, 8 */
+                regs->r15 = ((unsigned long)frame->tramp)-8;
+
+                __invalidate_cache_sigtramp((unsigned long)frame->tramp);
+        }
+
+        if (err)
+                goto give_sigsegv;
+
+        /* Set up registers for signal handler */
+        regs->r1 = (unsigned long) frame;
+        /* Signal handler args: */
+        regs->r5 = signal; /* arg 0: signum */
+        regs->r6 = (unsigned long) &frame->info; /* arg 1: siginfo */
+        regs->r7 = (unsigned long) &frame->uc; /* arg2: ucontext */
+        /* Offset to handle microblaze rtid r14, 0 */
+        regs->pc = (unsigned long)ka->sa.sa_handler;
+
+        set_fs(USER_DS);
+
+#ifdef DEBUG_SIG
+        printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
+                current->comm, current->pid, frame, regs->pc);
+#endif
+
+        return;
+
+give_sigsegv:
+        if (sig == SIGSEGV)
+                ka->sa.sa_handler = SIG_DFL;
+        force_sig(SIGSEGV, current);
+}
+
+/* Handle restarting system calls */
+static inline void
+handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
+{
+        switch (regs->r3) {
+        case -ERESTART_RESTARTBLOCK:
+        case -ERESTARTNOHAND:
+                if (!has_handler)
+                        goto do_restart;
+                regs->r3 = -EINTR;
+                break;
+        case -ERESTARTSYS:
+                if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
+                        regs->r3 = -EINTR;
+                        break;
+        }
+        /* fallthrough */
+        case -ERESTARTNOINTR:
+do_restart:
+                /* offset of 4 bytes to re-execute trap (brki) instruction */
+                regs->pc -= 4;
+                break;
+        }
+}
+
+/*
+ * 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)
+{
+        /* Set up the stack frame */
+        if (ka->sa.sa_flags & SA_SIGINFO)
+                setup_rt_frame(sig, ka, info, oldset, regs);
+        else
+                setup_frame(sig, ka, oldset, regs);
+
+        if (ka->sa.sa_flags & SA_ONESHOT)
+                ka->sa.sa_handler = SIG_DFL;
+
+        if (!(ka->sa.sa_flags & SA_NODEFER)) {
+                spin_lock_irq(&current->sighand->siglock);
+                sigorsets(&current->blocked,
+                                &current->blocked, &ka->sa.sa_mask);
+                sigaddset(&current->blocked, sig);
+                recalc_sigpending();
+                spin_unlock_irq(&current->sighand->siglock);
+        }
+}
+
+/*
+ * 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.
+ *
+ * Note that we go through the signals twice: once to check the signals that
+ * the kernel can handle, and then we build all the user-level signal handling
+ * stack-frames in one go after that.
+ */
+int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
+{
+        siginfo_t info;
+        int signr;
+        struct k_sigaction ka;
+#ifdef DEBUG_SIG
+        printk(KERN_INFO "do signal: %p %p %d\n", regs, oldset, in_syscall);
+        printk(KERN_INFO "do signal2: %lx %lx %ld [%lx]\n", regs->pc, regs->r1,
+                        regs->r12, current_thread_info()->flags);
+#endif
+        /*
+         * We want the common case to go fast, which
+         * is why we may in certain cases get here from
+         * kernel mode. Just return without doing anything
+         * if so.
+         */
+        if (kernel_mode(regs))
+                return 1;
+
+        if (!oldset)
+                oldset = &current->blocked;
+
+        signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+        if (signr > 0) {
+                /* Whee! Actually deliver the signal. */
+                if (in_syscall)
+                        handle_restart(regs, &ka, 1);
+                handle_signal(signr, &ka, &info, oldset, regs);
+                return 1;
+        }
+
+        if (in_syscall)
+                handle_restart(regs, NULL, 0);
+
+        /* Did we come from a system call? */
+        return 0;
+}
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
new file mode 100644
index 000000000000..ba0568c2cc1c
--- /dev/null
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *      Yasushi SHOJI <yashi@atmark-techno.com>
+ *      Tetsuya OHKAWA <tetsuya@atmark-techno.com>
+ *
+ * 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.
+ */
+
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/syscalls.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/sys.h>
+#include <linux/ipc.h>
+#include <linux/utsname.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/fs.h>
+#include <linux/semaphore.h>
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+
+#include <asm/syscalls.h>
+/*
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
+ *
+ * This is really horribly ugly. This will be remove with new toolchain.
+ */
+asmlinkage int
+sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
+{
+        int version, ret;
+
+        version = call >> 16; /* hack for backward compatibility */
+        call &= 0xffff;
+
+        ret = -EINVAL;
+        switch (call) {
+        case SEMOP:
+                ret = sys_semop(first, (struct sembuf *)ptr, second);
+                break;
+        case SEMGET:
+                ret = sys_semget(first, second, third);
+                break;
+        case SEMCTL:
+        {
+                union semun fourth;
+
+                if (!ptr)
+                        break;
+                ret = (access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
+                                || (get_user(fourth.__pad, (void **)ptr)) ;
+                if (ret)
+                        break;
+                ret = sys_semctl(first, second, third, fourth);
+                break;
+        }
+        case MSGSND:
+                ret = sys_msgsnd(first, (struct msgbuf *) ptr, second, third);
+                break;
+        case MSGRCV:
+                switch (version) {
+                case 0: {
+                        struct ipc_kludge tmp;
+
+                        if (!ptr)
+                                break;
+                        ret = (access_ok(VERIFY_READ, ptr, sizeof(tmp))
+                                ? 0 : -EFAULT) || copy_from_user(&tmp,
+                                (struct ipc_kludge *) ptr, sizeof(tmp));
+                        if (ret)
+                                break;
+                        ret = sys_msgrcv(first, tmp.msgp, second, tmp.msgtyp,
+                                        third);
+                        break;
+                        }
+                default:
+                        ret = sys_msgrcv(first, (struct msgbuf *) 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 *) ptr);
+                break;
+        case SHMAT:
+                switch (version) {
+                default: {
+                        ulong raddr;
+                        ret = access_ok(VERIFY_WRITE, (ulong *) third,
+                                        sizeof(ulong)) ? 0 : -EFAULT;
+                        if (ret)
+                                break;
+                        ret = do_shmat(first, (char *) ptr, second, &raddr);
+                        if (ret)
+                                break;
+                        ret = put_user(raddr, (ulong *) third);
+                        break;
+                        }
+                case 1: /* iBCS2 emulator entry point */
+                        if (!segment_eq(get_fs(), get_ds()))
+                                break;
+                        ret = do_shmat(first, (char *) ptr, second,
+                                        (ulong *) third);
+                        break;
+                }
+                break;
+        case SHMDT:
+                ret = sys_shmdt((char *)ptr);
+                break;
+        case SHMGET:
+                ret = sys_shmget(first, second, third);
+                break;
+        case SHMCTL:
+                ret = sys_shmctl(first, second, (struct shmid_ds *) ptr);
+                break;
+        }
+        return -EINVAL;
+}
+
+asmlinkage int sys_vfork(struct pt_regs *regs)
+{
+        return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->r1,
+                                                regs, 0, NULL, NULL);
+}
+
+asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs)
+{
+        if (!stack)
+                stack = regs->r1;
+        return do_fork(flags, stack, regs, 0, NULL, NULL);
+}
+
+asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
+                        char __user *__user *envp, struct pt_regs *regs)
+{
+        int error;
+        char *filename;
+
+        filename = getname(filenamei);
+        error = PTR_ERR(filename);
+        if (IS_ERR(filename))
+                goto out;
+        error = do_execve(filename, argv, envp, regs);
+        putname(filename);
+out:
+        return error;
+}
+
+asmlinkage unsigned long
+sys_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)) {
+                file = fget(fd);
+                if (!file) {
+                        printk(KERN_INFO "no fd in mmap\r\n");
+                        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;
+}
+
+asmlinkage 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) {
+                printk(KERN_INFO "no pagemask in mmap\r\n");
+                goto out;
+        }
+
+        err = sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
+out:
+        return err;
+}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+        register const char *__a __asm__("r5") = filename;
+        register const void *__b __asm__("r6") = argv;
+        register const void *__c __asm__("r7") = envp;
+        register unsigned long __syscall __asm__("r12") = __NR_execve;
+        register unsigned long __ret __asm__("r3");
+        __asm__ __volatile__ ("brki r14, 0x8"
+                        : "=r" (__ret), "=r" (__syscall)
+                        : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)
+                        : "r4", "r8", "r9",
+                        "r10", "r11", "r14", "cc", "memory");
+        return __ret;
+}
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
new file mode 100644
index 000000000000..529b0dbf4fe9
--- /dev/null
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -0,0 +1,365 @@
+ENTRY(sys_call_table)
+        .long sys_restart_syscall       /* 0 - old "setup()" system call,
+                                         * used for restarting */
+        .long sys_exit
+        .long sys_ni_syscall            /* was fork */
+        .long sys_read
+        .long sys_write
+        .long sys_open                  /* 5 */
+        .long sys_close
+        .long sys_waitpid
+        .long sys_creat
+        .long sys_link
+        .long sys_unlink                /* 10 */
+        .long sys_execve_wrapper
+        .long sys_chdir
+        .long sys_time
+        .long sys_mknod
+        .long sys_chmod                 /* 15 */
+        .long sys_lchown
+        .long sys_ni_syscall            /* old break syscall holder */
+        .long sys_ni_syscall            /* old stat */
+        .long sys_lseek
+        .long sys_getpid                /* 20 */
+        .long sys_mount
+        .long sys_oldumount
+        .long sys_setuid
+        .long sys_getuid
+        .long sys_stime                 /* 25 */
+        .long sys_ptrace
+        .long sys_alarm
+        .long sys_ni_syscall            /* oldfstat */
+        .long sys_pause
+        .long sys_utime                 /* 30 */
+        .long sys_ni_syscall            /* old stty syscall holder */
+        .long sys_ni_syscall            /* old gtty syscall holder */
+        .long sys_access
+        .long sys_nice
+        .long sys_ni_syscall            /* 35 - old ftime syscall holder */
+        .long sys_sync
+        .long sys_kill
+        .long sys_rename
+        .long sys_mkdir
+        .long sys_rmdir                 /* 40 */
+        .long sys_dup
+        .long sys_pipe
+        .long sys_times
+        .long sys_ni_syscall            /* old prof syscall holder */
+        .long sys_brk                   /* 45 */
+        .long sys_setgid
+        .long sys_getgid
+        .long sys_signal
+        .long sys_geteuid
+        .long sys_getegid               /* 50 */
+        .long sys_acct
+        .long sys_umount                /* recycled never used phys() */
+        .long sys_ni_syscall            /* old lock syscall holder */
+        .long sys_ioctl
+        .long sys_fcntl                 /* 55 */
+        .long sys_ni_syscall            /* old mpx syscall holder */
+        .long sys_setpgid
+        .long sys_ni_syscall            /* old ulimit syscall holder */
+        .long sys_ni_syscall            /* olduname */
+        .long sys_umask                 /* 60 */
+        .long sys_chroot
+        .long sys_ustat
+        .long sys_dup2
+        .long sys_getppid
+        .long sys_getpgrp               /* 65 */
+        .long sys_setsid
+        .long sys_sigaction
+        .long sys_sgetmask
+        .long sys_ssetmask
+        .long sys_setreuid              /* 70 */
+        .long sys_setregid
+        .long sys_sigsuspend_wrapper
+        .long sys_sigpending
+        .long sys_sethostname
+        .long sys_setrlimit             /* 75 */
+        .long sys_ni_syscall            /* old_getrlimit */
+        .long sys_getrusage
+        .long sys_gettimeofday
+        .long sys_settimeofday
+        .long sys_getgroups             /* 80 */
+        .long sys_setgroups
+        .long sys_ni_syscall            /* old_select */
+        .long sys_symlink
+        .long sys_ni_syscall            /* oldlstat */
+        .long sys_readlink              /* 85 */
+        .long sys_uselib
+        .long sys_swapon
+        .long sys_reboot
+        .long sys_ni_syscall            /* old_readdir */
+        .long sys_mmap                  /* 90 */ /* old_mmap */
+        .long sys_munmap
+        .long sys_truncate
+        .long sys_ftruncate
+        .long sys_fchmod
+        .long sys_fchown                /* 95 */
+        .long sys_getpriority
+        .long sys_setpriority
+        .long sys_ni_syscall            /* old profil syscall holder */
+        .long sys_statfs
+        .long sys_fstatfs               /* 100 */
+        .long sys_ni_syscall            /* ioperm */
+        .long sys_socketcall
+        .long sys_syslog                /* operation with system console */
+        .long sys_setitimer
+        .long sys_getitimer             /* 105 */
+        .long sys_newstat
+        .long sys_newlstat
+        .long sys_newfstat
+        .long sys_ni_syscall            /* uname */
+        .long sys_ni_syscall            /* 110 */ /* iopl */
+        .long sys_vhangup
+        .long sys_ni_syscall            /* old "idle" system call */
+        .long sys_ni_syscall            /* old sys_vm86old */
+        .long sys_wait4
+        .long sys_swapoff               /* 115 */
+        .long sys_sysinfo
+        .long sys_ipc
+        .long sys_fsync
+        .long sys_sigreturn_wrapper
+        .long sys_clone_wrapper         /* 120 */
+        .long sys_setdomainname
+        .long sys_newuname
+        .long sys_ni_syscall            /* modify_ldt */
+        .long sys_adjtimex
+        .long sys_mprotect              /* 125: sys_mprotect */
+        .long sys_sigprocmask
+        .long sys_ni_syscall            /* old "create_module" */
+        .long sys_init_module
+        .long sys_delete_module
+        .long sys_ni_syscall            /* 130: old "get_kernel_syms" */
+        .long sys_quotactl
+        .long sys_getpgid
+        .long sys_fchdir
+        .long sys_bdflush
+        .long sys_sysfs                 /* 135 */
+        .long sys_personality
+        .long sys_ni_syscall            /* reserved for afs_syscall */
+        .long sys_setfsuid
+        .long sys_setfsgid
+        .long sys_llseek                /* 140 */
+        .long sys_getdents
+        .long sys_select
+        .long sys_flock
+        .long sys_msync
+        .long sys_readv                 /* 145 */
+        .long sys_writev
+        .long sys_getsid
+        .long sys_fdatasync
+        .long sys_sysctl
+        .long sys_mlock         /* 150: sys_mlock */
+        .long sys_munlock
+        .long sys_mlockall
+        .long sys_munlockall
+        .long sys_sched_setparam
+        .long sys_sched_getparam        /* 155 */
+        .long sys_sched_setscheduler
+        .long sys_sched_getscheduler
+        .long sys_sched_yield
+        .long sys_sched_get_priority_max
+        .long sys_sched_get_priority_min        /* 160 */
+        .long sys_sched_rr_get_interval
+        .long sys_nanosleep
+        .long sys_mremap
+        .long sys_setresuid
+        .long sys_getresuid             /* 165 */
+        .long sys_ni_syscall            /* sys_vm86 */
+        .long sys_ni_syscall            /* Old sys_query_module */
+        .long sys_poll
+        .long sys_nfsservctl
+        .long sys_setresgid             /* 170 */
+        .long sys_getresgid
+        .long sys_prctl
+        .long sys_rt_sigreturn_wrapper
+        .long sys_rt_sigaction
+        .long sys_rt_sigprocmask        /* 175 */
+        .long sys_rt_sigpending
+        .long sys_rt_sigtimedwait
+        .long sys_rt_sigqueueinfo
+        .long sys_rt_sigsuspend_wrapper
+        .long sys_pread64               /* 180 */
+        .long sys_pwrite64
+        .long sys_chown
+        .long sys_getcwd
+        .long sys_capget
+        .long sys_capset                /* 185 */
+        .long sys_ni_syscall            /* sigaltstack */
+        .long sys_sendfile
+        .long sys_ni_syscall            /* reserved for streams1 */
+        .long sys_ni_syscall            /* reserved for streams2 */
+        .long sys_vfork_wrapper         /* 190 */
+        .long sys_getrlimit
+        .long sys_mmap2                 /* mmap2 */
+        .long sys_truncate64
+        .long sys_ftruncate64
+        .long sys_stat64                /* 195 */
+        .long sys_lstat64
+        .long sys_fstat64
+        .long sys_lchown
+        .long sys_getuid
+        .long sys_getgid                /* 200 */
+        .long sys_geteuid
+        .long sys_getegid
+        .long sys_setreuid
+        .long sys_setregid
+        .long sys_getgroups             /* 205 */
+        .long sys_setgroups
+        .long sys_fchown
+        .long sys_setresuid
+        .long sys_getresuid
+        .long sys_setresgid             /* 210 */
+        .long sys_getresgid
+        .long sys_chown
+        .long sys_setuid
+        .long sys_setgid
+        .long sys_setfsuid              /* 215 */
+        .long sys_setfsgid
+        .long sys_pivot_root
+        .long sys_mincore
+        .long sys_madvise
+        .long sys_getdents64            /* 220 */
+        .long sys_fcntl64
+        .long sys_ni_syscall            /* reserved for TUX */
+        .long sys_ni_syscall
+        .long sys_gettid
+        .long sys_readahead             /* 225 */
+        .long sys_setxattr
+        .long sys_lsetxattr
+        .long sys_fsetxattr
+        .long sys_getxattr
+        .long sys_lgetxattr             /* 230 */
+        .long sys_fgetxattr
+        .long sys_listxattr
+        .long sys_llistxattr
+        .long sys_flistxattr
+        .long sys_removexattr           /* 235 */
+        .long sys_lremovexattr
+        .long sys_fremovexattr
+        .long sys_tkill
+        .long sys_sendfile64
+        .long sys_futex                 /* 240 */
+        .long sys_sched_setaffinity
+        .long sys_sched_getaffinity
+        .long sys_ni_syscall            /* set_thread_area */
+        .long sys_ni_syscall            /* get_thread_area */
+        .long sys_io_setup              /* 245 */
+        .long sys_io_destroy
+        .long sys_io_getevents
+        .long sys_io_submit
+        .long sys_io_cancel
+        .long sys_fadvise64             /* 250 */
+        .long sys_ni_syscall
+        .long sys_exit_group
+        .long sys_lookup_dcookie
+        .long sys_epoll_create
+        .long sys_epoll_ctl             /* 255 */
+        .long sys_epoll_wait
+        .long sys_remap_file_pages
+        .long sys_set_tid_address
+        .long sys_timer_create
+        .long sys_timer_settime         /* 260 */
+        .long sys_timer_gettime
+        .long sys_timer_getoverrun
+        .long sys_timer_delete
+        .long sys_clock_settime
+        .long sys_clock_gettime         /* 265 */
+        .long sys_clock_getres
+        .long sys_clock_nanosleep
+        .long sys_statfs64
+        .long sys_fstatfs64
+        .long sys_tgkill                /* 270 */
+        .long sys_utimes
+        .long sys_fadvise64_64
+        .long sys_ni_syscall            /* sys_vserver */
+        .long sys_mbind
+        .long sys_get_mempolicy
+        .long sys_set_mempolicy
+        .long sys_mq_open
+        .long sys_mq_unlink
+        .long sys_mq_timedsend
+        .long sys_mq_timedreceive       /* 280 */
+        .long sys_mq_notify
+        .long sys_mq_getsetattr
+        .long sys_kexec_load
+        .long sys_waitid
+        .long sys_ni_syscall            /* 285 */ /* available */
+        .long sys_add_key
+        .long sys_request_key
+        .long sys_keyctl
+        .long sys_ioprio_set
+        .long sys_ioprio_get            /* 290 */
+        .long sys_inotify_init
+        .long sys_inotify_add_watch
+        .long sys_inotify_rm_watch
+        .long sys_ni_syscall            /* sys_migrate_pages */
+        .long sys_openat        /* 295 */
+        .long sys_mkdirat
+        .long sys_mknodat
+        .long sys_fchownat
+        .long sys_ni_syscall
+        .long sys_fstatat64             /* 300 */
+        .long sys_unlinkat
+        .long sys_renameat
+        .long sys_linkat
+        .long sys_symlinkat
+        .long sys_readlinkat            /* 305 */
+        .long sys_fchmodat
+        .long sys_faccessat
+        .long sys_ni_syscall /* pselect6 */
+        .long sys_ni_syscall /* sys_ppoll */
+        .long sys_unshare               /* 310 */
+        .long sys_set_robust_list
+        .long sys_get_robust_list
+        .long sys_splice
+        .long sys_sync_file_range
+        .long sys_tee                   /* 315 */
+        .long sys_vmsplice
+        .long sys_move_pages
+        .long sys_getcpu
+        .long sys_epoll_pwait
+        .long sys_utimensat             /* 320 */
+        .long sys_signalfd
+        .long sys_timerfd_create
+        .long sys_eventfd
+        .long sys_fallocate
+        .long sys_semtimedop            /* 325 */
+        .long sys_timerfd_settime
+        .long sys_timerfd_gettime
+        .long sys_semctl
+        .long sys_semget
+        .long sys_semop                 /* 330 */
+        .long sys_msgctl
+        .long sys_msgget
+        .long sys_msgrcv
+        .long sys_msgsnd
+        .long sys_shmat                 /* 335 */
+        .long sys_shmctl
+        .long sys_shmdt
+        .long sys_shmget
+        .long sys_signalfd4     /* new syscall */
+        .long sys_eventfd2              /* 340 */
+        .long sys_epoll_create1
+        .long sys_dup3
+        .long sys_pipe2
+        .long sys_inotify_init1
+        .long sys_socket                /* 345 */
+        .long sys_socketpair
+        .long sys_bind
+        .long sys_listen
+        .long sys_accept
+        .long sys_connect               /* 350 */
+        .long sys_getsockname
+        .long sys_getpeername
+        .long sys_sendto
+        .long sys_send
+        .long sys_recvfrom              /* 355 */
+        .long sys_recv
+        .long sys_setsockopt
+        .long sys_getsockopt
+        .long sys_shutdown
+        .long sys_sendmsg               /* 360 */
+        .long sys_recvmsg
+        .long sys_ni_syscall
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
new file mode 100644
index 000000000000..05a497eefd78
--- /dev/null
+++ b/arch/microblaze/kernel/timer.c
@@ -0,0 +1,262 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/interrupt.h>
+#include <linux/profile.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/io.h>
+#include <asm/cpuinfo.h>
+#include <asm/setup.h>
+#include <asm/prom.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_SELFMOD_TIMER
+#include <asm/selfmod.h>
+#define TIMER_BASE      BARRIER_BASE_ADDR
+#else
+static unsigned int timer_baseaddr;
+#define TIMER_BASE      timer_baseaddr
+#endif
+
+#define TCSR0   (0x00)
+#define TLR0    (0x04)
+#define TCR0    (0x08)
+#define TCSR1   (0x10)
+#define TLR1    (0x14)
+#define TCR1    (0x18)
+
+#define TCSR_MDT        (1<<0)
+#define TCSR_UDT        (1<<1)
+#define TCSR_GENT       (1<<2)
+#define TCSR_CAPT       (1<<3)
+#define TCSR_ARHT       (1<<4)
+#define TCSR_LOAD       (1<<5)
+#define TCSR_ENIT       (1<<6)
+#define TCSR_ENT        (1<<7)
+#define TCSR_TINT       (1<<8)
+#define TCSR_PWMA       (1<<9)
+#define TCSR_ENALL      (1<<10)
+
+static inline void microblaze_timer0_stop(void)
+{
+        out_be32(TIMER_BASE + TCSR0, in_be32(TIMER_BASE + TCSR0) & ~TCSR_ENT);
+}
+
+static inline void microblaze_timer0_start_periodic(unsigned long load_val)
+{
+        if (!load_val)
+                load_val = 1;
+        out_be32(TIMER_BASE + TLR0, load_val); /* loading value to timer reg */
+
+        /* load the initial value */
+        out_be32(TIMER_BASE + TCSR0, TCSR_LOAD);
+
+        /* see timer data sheet for detail
+         * !ENALL - don't enable 'em all
+         * !PWMA - disable pwm
+         * TINT - clear interrupt status
+         * ENT- enable timer itself
+         * EINT - enable interrupt
+         * !LOAD - clear the bit to let go
+         * ARHT - auto reload
+         * !CAPT - no external trigger
+         * !GENT - no external signal
+         * UDT - set the timer as down counter
+         * !MDT0 - generate mode
+         */
+        out_be32(TIMER_BASE + TCSR0,
+                        TCSR_TINT|TCSR_ENIT|TCSR_ENT|TCSR_ARHT|TCSR_UDT);
+}
+
+static inline void microblaze_timer0_start_oneshot(unsigned long load_val)
+{
+        if (!load_val)
+                load_val = 1;
+        out_be32(TIMER_BASE + TLR0, load_val); /* loading value to timer reg */
+
+        /* load the initial value */
+        out_be32(TIMER_BASE + TCSR0, TCSR_LOAD);
+
+        out_be32(TIMER_BASE + TCSR0,
+                        TCSR_TINT|TCSR_ENIT|TCSR_ENT|TCSR_ARHT|TCSR_UDT);
+}
+
+static int microblaze_timer_set_next_event(unsigned long delta,
+                                        struct clock_event_device *dev)
+{
+        pr_debug("%s: next event, delta %x\n", __func__, (u32)delta);
+        microblaze_timer0_start_oneshot(delta);
+        return 0;
+}
+
+static void microblaze_timer_set_mode(enum clock_event_mode mode,
+                                struct clock_event_device *evt)
+{
+        switch (mode) {
+        case CLOCK_EVT_MODE_PERIODIC:
+                printk(KERN_INFO "%s: periodic\n", __func__);
+                microblaze_timer0_start_periodic(cpuinfo.freq_div_hz);
+                break;
+        case CLOCK_EVT_MODE_ONESHOT:
+                printk(KERN_INFO "%s: oneshot\n", __func__);
+                break;
+        case CLOCK_EVT_MODE_UNUSED:
+                printk(KERN_INFO "%s: unused\n", __func__);
+                break;
+        case CLOCK_EVT_MODE_SHUTDOWN:
+                printk(KERN_INFO "%s: shutdown\n", __func__);
+                microblaze_timer0_stop();
+                break;
+        case CLOCK_EVT_MODE_RESUME:
+                printk(KERN_INFO "%s: resume\n", __func__);
+                break;
+        }
+}
+
+static struct clock_event_device clockevent_microblaze_timer = {
+        .name           = "microblaze_clockevent",
+        .features       = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
+        .shift          = 24,
+        .rating         = 300,
+        .set_next_event = microblaze_timer_set_next_event,
+        .set_mode       = microblaze_timer_set_mode,
+};
+
+static inline void timer_ack(void)
+{
+        out_be32(TIMER_BASE + TCSR0, in_be32(TIMER_BASE + TCSR0));
+}
+
+static irqreturn_t timer_interrupt(int irq, void *dev_id)
+{
+        struct clock_event_device *evt = &clockevent_microblaze_timer;
+#ifdef CONFIG_HEART_BEAT
+        heartbeat();
+#endif
+        timer_ack();
+        evt->event_handler(evt);
+        return IRQ_HANDLED;
+}
+
+static struct irqaction timer_irqaction = {
+        .handler = timer_interrupt,
+        .flags = IRQF_DISABLED | IRQF_TIMER,
+        .name = "timer",
+        .dev_id = &clockevent_microblaze_timer,
+};
+
+static __init void microblaze_clockevent_init(void)
+{
+        clockevent_microblaze_timer.mult =
+                div_sc(cpuinfo.cpu_clock_freq, NSEC_PER_SEC,
+                                clockevent_microblaze_timer.shift);
+        clockevent_microblaze_timer.max_delta_ns =
+                clockevent_delta2ns((u32)~0, &clockevent_microblaze_timer);
+        clockevent_microblaze_timer.min_delta_ns =
+                clockevent_delta2ns(1, &clockevent_microblaze_timer);
+        clockevent_microblaze_timer.cpumask = cpumask_of(0);
+        clockevents_register_device(&clockevent_microblaze_timer);
+}
+
+static cycle_t microblaze_read(void)
+{
+        /* reading actual value of timer 1 */
+        return (cycle_t) (in_be32(TIMER_BASE + TCR1));
+}
+
+static struct clocksource clocksource_microblaze = {
+        .name           = "microblaze_clocksource",
+        .rating         = 300,
+        .read           = microblaze_read,
+        .mask           = CLOCKSOURCE_MASK(32),
+        .shift          = 24, /* I can shift it */
+        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int __init microblaze_clocksource_init(void)
+{
+        clocksource_microblaze.mult =
+                        clocksource_hz2mult(cpuinfo.cpu_clock_freq,
+                                                clocksource_microblaze.shift);
+        if (clocksource_register(&clocksource_microblaze))
+                panic("failed to register clocksource");
+
+        /* stop timer1 */
+        out_be32(TIMER_BASE + TCSR1, in_be32(TIMER_BASE + TCSR1) & ~TCSR_ENT);
+        /* start timer1 - up counting without interrupt */
+        out_be32(TIMER_BASE + TCSR1, TCSR_TINT|TCSR_ENT|TCSR_ARHT);
+        return 0;
+}
+
+void __init time_init(void)
+{
+        u32 irq, i = 0;
+        u32 timer_num = 1;
+        struct device_node *timer = NULL;
+#ifdef CONFIG_SELFMOD_TIMER
+        unsigned int timer_baseaddr = 0;
+        int arr_func[] = {
+                                (int)&microblaze_read,
+                                (int)&timer_interrupt,
+                                (int)&microblaze_clocksource_init,
+                                (int)&microblaze_timer_set_mode,
+                                (int)&microblaze_timer_set_next_event,
+                                0
+                        };
+#endif
+        char *timer_list[] = {
+                                "xlnx,xps-timer-1.00.a",
+                                "xlnx,opb-timer-1.00.b",
+                                "xlnx,opb-timer-1.00.a",
+                                NULL
+                        };
+
+        for (i = 0; timer_list[i] != NULL; i++) {
+                timer = of_find_compatible_node(NULL, NULL, timer_list[i]);
+                if (timer)
+                        break;
+        }
+
+        timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL);
+        timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
+        irq = *(int *) of_get_property(timer, "interrupts", NULL);
+        timer_num =
+                *(int *) of_get_property(timer, "xlnx,one-timer-only", NULL);
+        if (timer_num) {
+                printk(KERN_EMERG "Please enable two timers in HW\n");
+                BUG();
+        }
+
+#ifdef CONFIG_SELFMOD_TIMER
+        selfmod_function((int *) arr_func, timer_baseaddr);
+#endif
+        printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n",
+                timer_list[i], timer_baseaddr, irq);
+
+        cpuinfo.freq_div_hz = cpuinfo.cpu_clock_freq / HZ;
+
+        setup_irq(irq, &timer_irqaction);
+#ifdef CONFIG_HEART_BEAT
+        setup_heartbeat();
+#endif
+        microblaze_clocksource_init();
+        microblaze_clockevent_init();
+}
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
new file mode 100644
index 000000000000..fbdc533c61e3
--- /dev/null
+++ b/arch/microblaze/kernel/traps.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/kallsyms.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/debug_locks.h>
+
+#include <asm/exceptions.h>
+#include <asm/system.h>
+
+void trap_init(void)
+{
+        __enable_hw_exceptions();
+}
+
+void __bad_xchg(volatile void *ptr, int size)
+{
+        printk(KERN_INFO "xchg: bad data size: pc 0x%p, ptr 0x%p, size %d\n",
+                __builtin_return_address(0), ptr, size);
+        BUG();
+}
+EXPORT_SYMBOL(__bad_xchg);
+
+static int kstack_depth_to_print = 24;
+
+static int __init kstack_setup(char *s)
+{
+        kstack_depth_to_print = strict_strtoul(s, 0, 0);
+
+        return 1;
+}
+__setup("kstack=", kstack_setup);
+
+void show_trace(struct task_struct *task, unsigned long *stack)
+{
+        unsigned long addr;
+
+        if (!stack)
+                stack = (unsigned long *)&stack;
+
+        printk(KERN_NOTICE "Call Trace: ");
+#ifdef CONFIG_KALLSYMS
+        printk(KERN_NOTICE "\n");
+#endif
+        while (!kstack_end(stack)) {
+                addr = *stack++;
+                /*
+                 * If the address is either in the text segment of the
+                 * kernel, or in the region which contains vmalloc'ed
+                 * memory, it *may* be the address of a calling
+                 * routine; if so, print it so that someone tracing
+                 * down the cause of the crash will be able to figure
+                 * out the call path that was taken.
+                 */
+                if (kernel_text_address(addr))
+                        print_ip_sym(addr);
+        }
+        printk(KERN_NOTICE "\n");
+
+        if (!task)
+                task = current;
+
+        debug_show_held_locks(task);
+}
+
+void show_stack(struct task_struct *task, unsigned long *sp)
+{
+        unsigned long *stack;
+        int i;
+
+        if (sp == NULL) {
+                if (task)
+                        sp = (unsigned long *) ((struct thread_info *)
+                                                (task->stack))->cpu_context.r1;
+                else
+                        sp = (unsigned long *)&sp;
+        }
+
+        stack = sp;
+
+        printk(KERN_INFO "\nStack:\n  ");
+
+        for (i = 0; i < kstack_depth_to_print; i++) {
+                if (kstack_end(sp))
+                        break;
+                if (i && ((i % 8) == 0))
+                        printk("\n  ");
+                printk("%08lx ", *sp++);
+        }
+        printk("\n");
+        show_trace(task, stack);
+}
+
+void dump_stack(void)
+{
+        show_stack(NULL, NULL);
+}
+EXPORT_SYMBOL(dump_stack);
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
new file mode 100644
index 000000000000..840385e51291
--- /dev/null
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze")
+OUTPUT_ARCH(microblaze)
+ENTRY(_start)
+
+#include <asm-generic/vmlinux.lds.h>
+
+jiffies = jiffies_64 + 4;
+
+SECTIONS {
+        . = CONFIG_KERNEL_BASE_ADDR;
+
+        .text : {
+                _text = . ;
+                _stext = . ;
+                *(.text .text.*)
+                *(.fixup)
+
+                *(.exitcall.exit)
+                SCHED_TEXT
+                LOCK_TEXT
+                KPROBES_TEXT
+                . = ALIGN (4) ;
+                _etext = . ;
+        }
+
+        . = ALIGN (4) ;
+        _fdt_start = . ; /* place for fdt blob */
+        . = . + 0x4000;
+        _fdt_end = . ;
+
+        . = ALIGN(16);
+        RODATA
+        . = ALIGN(16);
+        __ex_table : {
+                __start___ex_table = .;
+                *(__ex_table)
+                __stop___ex_table = .;
+        }
+
+        /*
+         * sdata2 section can go anywhere, but must be word aligned
+         * and SDA2_BASE must point to the middle of it
+         */
+        .sdata2 : {
+                _ssrw = .;
+                . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */
+                *(.sdata2)
+        . = ALIGN(8);
+        _essrw = .;
+        _ssrw_size = _essrw - _ssrw;
+        _KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
+        }
+
+        _sdata = . ;
+        .data ALIGN (4096) : { /* page aligned when MMU used - origin 0x4 */
+                *(.data)
+        }
+        . = ALIGN(32);
+        .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+        _edata = . ;
+
+        /* Reserve some low RAM for r0 based memory references */
+        . = ALIGN(0x4) ;
+        r0_ram = . ;
+        . = . +  4096;  /* a page should be enough */
+
+        /* The initial task */
+        . = ALIGN(8192);
+        .data.init_task : { *(.data.init_task) }
+
+        /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
+        . = ALIGN(8);
+        .sdata : {
+                _ssro = .;
+                *(.sdata)
+        }
+
+        .sbss : {
+                _ssbss = .;
+                *(.sbss)
+                _esbss = .;
+                _essro = .;
+                _ssro_size = _essro - _ssro ;
+                _KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
+        }
+
+        __init_begin = .;
+
+        . = ALIGN(4096);
+        .init.text : {
+                _sinittext = . ;
+                *(.init.text)
+                *(.exit.text)
+                *(.exit.data)
+                _einittext = .;
+        }
+
+        .init.data : { *(.init.data) }
+
+        . = ALIGN(4);
+        .init.ivt : {
+                __ivt_start = .;
+                *(.init.ivt)
+                __ivt_end = .;
+        }
+
+        .init.setup : {
+                __setup_start = .;
+                *(.init.setup)
+                __setup_end = .;
+        }
+
+        .initcall.init : {
+                __initcall_start = .;
+                INITCALLS
+                __initcall_end = .;
+        }
+
+        .con_initcall.init : {
+                __con_initcall_start = .;
+                *(.con_initcall.init)
+                __con_initcall_end = .;
+        }
+
+        __init_end_before_initramfs = .;
+
+        .init.ramfs ALIGN(4096) : {
+                __initramfs_start = .;
+                *(.init.ramfs)
+                __initramfs_end = .;
+                . = ALIGN(4);
+                LONG(0);
+/*
+ * FIXME this can break initramfs for MMU.
+ * Pad init.ramfs up to page boundary,
+ * so that __init_end == __bss_start. This will make image.elf
+ * consistent with the image.bin
+ */
+                /* . = ALIGN(4096); */
+        }
+        __init_end = .;
+
+        .bss ALIGN (4096) : { /* page aligned when MMU used */
+                __bss_start = . ;
+                        *(.bss*)
+                        *(COMMON)
+                . = ALIGN (4) ;
+                __bss_stop = . ;
+                _ebss = . ;
+        }
+        . = ALIGN(4096);
+        _end = .;
+}
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
new file mode 100644
index 000000000000..d27126bf306a
--- /dev/null
+++ b/arch/microblaze/lib/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile
+#
+
+lib-y :=  memset.o checksum.o
+
+ifeq ($(CONFIG_OPT_LIB_ASM),y)
+lib-y += fastcopy.o
+else
+lib-y += memcpy.o memmove.o
+endif
+
+lib-y +=  uaccess.o
diff --git a/arch/microblaze/lib/checksum.c b/arch/microblaze/lib/checksum.c
new file mode 100644
index 000000000000..809340070a13
--- /dev/null
+++ b/arch/microblaze/lib/checksum.c
@@ -0,0 +1,163 @@
+/*
+ *
+ * INET         An implementation of the TCP/IP protocol suite for the LINUX
+ *              operating system.  INET is implemented using the  BSD Socket
+ *              interface as the means of communication with the user level.
+ *
+ *              IP/TCP/UDP checksumming routines
+ *
+ * Authors:     Jorge Cwik, <jorge@laser.satlink.net>
+ *              Arnt Gulbrandsen, <agulbra@nvg.unit.no>
+ *              Tom May, <ftom@netcom.com>
+ *              Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
+ *              Lots of code moved from tcp.c and ip.c; see those files
+ *              for more names.
+ *
+ * 03/02/96     Jes Sorensen, Andreas Schwab, Roman Hodek:
+ *              Fixed some nasty bugs, causing some horrible crashes.
+ *              A: At some points, the sum (%0) was used as
+ *              length-counter instead of the length counter
+ *              (%1). Thanks to Roman Hodek for pointing this out.
+ *              B: GCC seems to mess up if one uses too many
+ *              data-registers to hold input values and one tries to
+ *              specify d0 and d1 as scratch registers. Letting gcc
+ *              choose these registers itself solves the problem.
+ *
+ *              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.
+ */
+
+/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access
+ kills, so most of the assembly has to go. */
+
+#include <net/checksum.h>
+#include <asm/checksum.h>
+#include <linux/module.h>
+
+static inline unsigned short from32to16(unsigned long x)
+{
+        /* add up 16-bit and 16-bit for 16+c bit */
+        x = (x & 0xffff) + (x >> 16);
+        /* add up carry.. */
+        x = (x & 0xffff) + (x >> 16);
+        return x;
+}
+
+static unsigned int do_csum(const unsigned char *buff, int len)
+{
+        int odd, count;
+        unsigned long result = 0;
+
+        if (len <= 0)
+                goto out;
+        odd = 1 & (unsigned long) buff;
+        if (odd) {
+                result = *buff;
+                len--;
+                buff++;
+        }
+        count = len >> 1;               /* nr of 16-bit words.. */
+        if (count) {
+                if (2 & (unsigned long) buff) {
+                        result += *(unsigned short *) buff;
+                        count--;
+                        len -= 2;
+                        buff += 2;
+                }
+                count >>= 1;            /* nr of 32-bit words.. */
+                if (count) {
+                        unsigned long carry = 0;
+                        do {
+                                unsigned long w = *(unsigned long *) buff;
+                                count--;
+                                buff += 4;
+                                result += carry;
+                                result += w;
+                                carry = (w > result);
+                        } while (count);
+                        result += carry;
+                        result = (result & 0xffff) + (result >> 16);
+                }
+                if (len & 2) {
+                        result += *(unsigned short *) buff;
+                        buff += 2;
+                }
+        }
+        if (len & 1)
+                result += (*buff << 8);
+        result = from32to16(result);
+        if (odd)
+                result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+out:
+        return result;
+}
+
+/*
+ *      This is a version of ip_compute_csum() optimized for IP headers,
+ *      which always checksum on 4 octet boundaries.
+ */
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+        return (__force __sum16)~do_csum(iph, ihl*4);
+}
+
+/*
+ * 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
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum)
+{
+        unsigned int result = do_csum(buff, len);
+
+        /* add in old sum, and carry.. */
+        result += sum;
+        if (sum > result)
+                result += 1;
+        return result;
+}
+EXPORT_SYMBOL(csum_partial);
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+__sum16 ip_compute_csum(const unsigned char *buff, int len)
+{
+        return ~do_csum(buff, len);
+}
+EXPORT_SYMBOL(ip_compute_csum);
+
+/*
+ * copy from fs while checksumming, otherwise like csum_partial
+ */
+__wsum
+csum_partial_copy_from_user(const char __user *src, char *dst, int len,
+                                                int sum, int *csum_err)
+{
+        if (csum_err)
+                *csum_err = 0;
+        memcpy(dst, src, len);
+        return csum_partial(dst, len, sum);
+}
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+
+/*
+ * copy from ds while checksumming, otherwise like csum_partial
+ */
+__wsum
+csum_partial_copy(const char *src, char *dst, int len, int sum)
+{
+        memcpy(dst, src, len);
+        return csum_partial(dst, len, sum);
+}
+EXPORT_SYMBOL(csum_partial_copy);
diff --git a/arch/microblaze/lib/fastcopy.S b/arch/microblaze/lib/fastcopy.S
new file mode 100644
index 000000000000..02e3ab4eddf3
--- /dev/null
+++ b/arch/microblaze/lib/fastcopy.S
@@ -0,0 +1,662 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2008 Jim Law - Iris LP  All rights reserved.
+ *
+ * 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.
+ *
+ * Written by Jim Law <jlaw@irispower.com>
+ *
+ * intended to replace:
+ *      memcpy in memcpy.c and
+ *      memmove in memmove.c
+ * ... in arch/microblaze/lib
+ *
+ *
+ * assly_fastcopy.S
+ *
+ * Attempt at quicker memcpy and memmove for MicroBlaze
+ *      Input : Operand1 in Reg r5 - destination address
+ *              Operand2 in Reg r6 - source address
+ *              Operand3 in Reg r7 - number of bytes to transfer
+ *      Output: Result in Reg r3 - starting destinaition address
+ *
+ *
+ * Explanation:
+ *      Perform (possibly unaligned) copy of a block of memory
+ *      between mem locations with size of xfer spec'd in bytes
+ */
+
+#include <linux/linkage.h>
+
+        .globl  memcpy
+        .ent    memcpy
+
+memcpy:
+fast_memcpy_ascending:
+        /* move d to return register as value of function */
+        addi    r3, r5, 0
+
+        addi    r4, r0, 4       /* n = 4 */
+        cmpu    r4, r4, r7      /* n = c - n  (unsigned) */
+        blti    r4, a_xfer_end  /* if n < 0, less than one word to transfer */
+
+        /* transfer first 0~3 bytes to get aligned dest address */
+        andi    r4, r5, 3               /* n = d & 3 */
+        /* if zero, destination already aligned */
+        beqi    r4, a_dalign_done
+        /* n = 4 - n (yields 3, 2, 1 transfers for 1, 2, 3 addr offset) */
+        rsubi   r4, r4, 4
+        rsub    r7, r4, r7              /* c = c - n adjust c */
+
+a_xfer_first_loop:
+        /* if no bytes left to transfer, transfer the bulk */
+        beqi    r4, a_dalign_done
+        lbui    r11, r6, 0              /* h = *s */
+        sbi     r11, r5, 0              /* *d = h */
+        addi    r6, r6, 1               /* s++ */
+        addi    r5, r5, 1               /* d++ */
+        brid    a_xfer_first_loop       /* loop */
+        addi    r4, r4, -1              /* n-- (IN DELAY SLOT) */
+
+a_dalign_done:
+        addi    r4, r0, 32              /* n = 32 */
+        cmpu    r4, r4, r7              /* n = c - n  (unsigned) */
+        /* if n < 0, less than one block to transfer */
+        blti    r4, a_block_done
+
+a_block_xfer:
+        andi    r4, r7, 0xffffffe0      /* n = c & ~31 */
+        rsub    r7, r4, r7              /* c = c - n */
+
+        andi    r9, r6, 3               /* t1 = s & 3 */
+        /* if temp != 0, unaligned transfers needed */
+        bnei    r9, a_block_unaligned
+
+a_block_aligned:
+        lwi     r9, r6, 0               /* t1 = *(s + 0) */
+        lwi     r10, r6, 4              /* t2 = *(s + 4) */
+        lwi     r11, r6, 8              /* t3 = *(s + 8) */
+        lwi     r12, r6, 12             /* t4 = *(s + 12) */
+        swi     r9, r5, 0               /* *(d + 0) = t1 */
+        swi     r10, r5, 4              /* *(d + 4) = t2 */
+        swi     r11, r5, 8              /* *(d + 8) = t3 */
+        swi     r12, r5, 12             /* *(d + 12) = t4 */
+        lwi     r9, r6, 16              /* t1 = *(s + 16) */
+        lwi     r10, r6, 20             /* t2 = *(s + 20) */
+        lwi     r11, r6, 24             /* t3 = *(s + 24) */
+        lwi     r12, r6, 28             /* t4 = *(s + 28) */
+        swi     r9, r5, 16              /* *(d + 16) = t1 */
+        swi     r10, r5, 20             /* *(d + 20) = t2 */
+        swi     r11, r5, 24             /* *(d + 24) = t3 */
+        swi     r12, r5, 28             /* *(d + 28) = t4 */
+        addi    r6, r6, 32              /* s = s + 32 */
+        addi    r4, r4, -32             /* n = n - 32 */
+        bneid   r4, a_block_aligned     /* while (n) loop */
+        addi    r5, r5, 32              /* d = d + 32 (IN DELAY SLOT) */
+        bri     a_block_done
+
+a_block_unaligned:
+        andi    r8, r6, 0xfffffffc      /* as = s & ~3 */
+        add     r6, r6, r4              /* s = s + n */
+        lwi     r11, r8, 0              /* h = *(as + 0) */
+
+        addi    r9, r9, -1
+        beqi    r9, a_block_u1          /* t1 was 1 => 1 byte offset */
+        addi    r9, r9, -1
+        beqi    r9, a_block_u2          /* t1 was 2 => 2 byte offset */
+
+a_block_u3:
+        bslli   r11, r11, 24    /* h = h << 24 */
+a_bu3_loop:
+        lwi     r12, r8, 4      /* v = *(as + 4) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 0       /* *(d + 0) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 8      /* v = *(as + 8) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 4       /* *(d + 4) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 12     /* v = *(as + 12) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 8       /* *(d + 8) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 16     /* v = *(as + 16) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 12      /* *(d + 12) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 20     /* v = *(as + 20) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 16      /* *(d + 16) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 24     /* v = *(as + 24) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 20      /* *(d + 20) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 28     /* v = *(as + 28) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 24      /* *(d + 24) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        lwi     r12, r8, 32     /* v = *(as + 32) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 28      /* *(d + 28) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        addi    r8, r8, 32      /* as = as + 32 */
+        addi    r4, r4, -32     /* n = n - 32 */
+        bneid   r4, a_bu3_loop  /* while (n) loop */
+        addi    r5, r5, 32      /* d = d + 32 (IN DELAY SLOT) */
+        bri     a_block_done
+
+a_block_u1:
+        bslli   r11, r11, 8     /* h = h << 8 */
+a_bu1_loop:
+        lwi     r12, r8, 4      /* v = *(as + 4) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 0       /* *(d + 0) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 8      /* v = *(as + 8) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 4       /* *(d + 4) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 12     /* v = *(as + 12) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 8       /* *(d + 8) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 16     /* v = *(as + 16) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 12      /* *(d + 12) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 20     /* v = *(as + 20) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 16      /* *(d + 16) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 24     /* v = *(as + 24) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 20      /* *(d + 20) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 28     /* v = *(as + 28) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 24      /* *(d + 24) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        lwi     r12, r8, 32     /* v = *(as + 32) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 28      /* *(d + 28) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        addi    r8, r8, 32      /* as = as + 32 */
+        addi    r4, r4, -32     /* n = n - 32 */
+        bneid   r4, a_bu1_loop  /* while (n) loop */
+        addi    r5, r5, 32      /* d = d + 32 (IN DELAY SLOT) */
+        bri     a_block_done
+
+a_block_u2:
+        bslli   r11, r11, 16    /* h = h << 16 */
+a_bu2_loop:
+        lwi     r12, r8, 4      /* v = *(as + 4) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 0       /* *(d + 0) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 8      /* v = *(as + 8) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 4       /* *(d + 4) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 12     /* v = *(as + 12) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 8       /* *(d + 8) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 16     /* v = *(as + 16) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 12      /* *(d + 12) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 20     /* v = *(as + 20) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 16      /* *(d + 16) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 24     /* v = *(as + 24) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 20      /* *(d + 20) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 28     /* v = *(as + 28) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 24      /* *(d + 24) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        lwi     r12, r8, 32     /* v = *(as + 32) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 28      /* *(d + 28) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        addi    r8, r8, 32      /* as = as + 32 */
+        addi    r4, r4, -32     /* n = n - 32 */
+        bneid   r4, a_bu2_loop  /* while (n) loop */
+        addi    r5, r5, 32      /* d = d + 32 (IN DELAY SLOT) */
+
+a_block_done:
+        addi    r4, r0, 4       /* n = 4 */
+        cmpu    r4, r4, r7      /* n = c - n  (unsigned) */
+        blti    r4, a_xfer_end  /* if n < 0, less than one word to transfer */
+
+a_word_xfer:
+        andi    r4, r7, 0xfffffffc      /* n = c & ~3 */
+        addi    r10, r0, 0              /* offset = 0 */
+
+        andi    r9, r6, 3               /* t1 = s & 3 */
+        /* if temp != 0, unaligned transfers needed */
+        bnei    r9, a_word_unaligned
+
+a_word_aligned:
+        lw      r9, r6, r10             /* t1 = *(s+offset) */
+        sw      r9, r5, r10             /* *(d+offset) = t1 */
+        addi    r4, r4,-4               /* n-- */
+        bneid   r4, a_word_aligned      /* loop */
+        addi    r10, r10, 4             /* offset++ (IN DELAY SLOT) */
+
+        bri     a_word_done
+
+a_word_unaligned:
+        andi    r8, r6, 0xfffffffc      /* as = s & ~3 */
+        lwi     r11, r8, 0              /* h = *(as + 0) */
+        addi    r8, r8, 4               /* as = as + 4 */
+
+        addi    r9, r9, -1
+        beqi    r9, a_word_u1           /* t1 was 1 => 1 byte offset */
+        addi    r9, r9, -1
+        beqi    r9, a_word_u2           /* t1 was 2 => 2 byte offset */
+
+a_word_u3:
+        bslli   r11, r11, 24    /* h = h << 24 */
+a_wu3_loop:
+        lw      r12, r8, r10    /* v = *(as + offset) */
+        bsrli   r9, r12, 8      /* t1 = v >> 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        sw      r9, r5, r10     /* *(d + offset) = t1 */
+        bslli   r11, r12, 24    /* h = v << 24 */
+        addi    r4, r4,-4       /* n = n - 4 */
+        bneid   r4, a_wu3_loop  /* while (n) loop */
+        addi    r10, r10, 4     /* offset = ofset + 4 (IN DELAY SLOT) */
+
+        bri     a_word_done
+
+a_word_u1:
+        bslli   r11, r11, 8     /* h = h << 8 */
+a_wu1_loop:
+        lw      r12, r8, r10    /* v = *(as + offset) */
+        bsrli   r9, r12, 24     /* t1 = v >> 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        sw      r9, r5, r10     /* *(d + offset) = t1 */
+        bslli   r11, r12, 8     /* h = v << 8 */
+        addi    r4, r4,-4       /* n = n - 4 */
+        bneid   r4, a_wu1_loop  /* while (n) loop */
+        addi    r10, r10, 4     /* offset = ofset + 4 (IN DELAY SLOT) */
+
+        bri     a_word_done
+
+a_word_u2:
+        bslli   r11, r11, 16    /* h = h << 16 */
+a_wu2_loop:
+        lw      r12, r8, r10    /* v = *(as + offset) */
+        bsrli   r9, r12, 16     /* t1 = v >> 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        sw      r9, r5, r10     /* *(d + offset) = t1 */
+        bslli   r11, r12, 16    /* h = v << 16 */
+        addi    r4, r4,-4       /* n = n - 4 */
+        bneid   r4, a_wu2_loop  /* while (n) loop */
+        addi    r10, r10, 4     /* offset = ofset + 4 (IN DELAY SLOT) */
+
+a_word_done:
+        add     r5, r5, r10     /* d = d + offset */
+        add     r6, r6, r10     /* s = s + offset */
+        rsub    r7, r10, r7     /* c = c - offset */
+
+a_xfer_end:
+a_xfer_end_loop:
+        beqi    r7, a_done              /* while (c) */
+        lbui    r9, r6, 0               /* t1 = *s */
+        addi    r6, r6, 1               /* s++ */
+        sbi     r9, r5, 0               /* *d = t1 */
+        addi    r7, r7, -1              /* c-- */
+        brid    a_xfer_end_loop         /* loop */
+        addi    r5, r5, 1               /* d++ (IN DELAY SLOT) */
+
+a_done:
+        rtsd    r15, 8
+        nop
+
+.end memcpy
+/*----------------------------------------------------------------------------*/
+        .globl  memmove
+        .ent    memmove
+
+memmove:
+        cmpu    r4, r5, r6      /* n = s - d */
+        bgei    r4,fast_memcpy_ascending
+
+fast_memcpy_descending:
+        /* move d to return register as value of function */
+        addi    r3, r5, 0
+
+        add     r5, r5, r7      /* d = d + c */
+        add     r6, r6, r7      /* s = s + c */
+
+        addi    r4, r0, 4       /* n = 4 */
+        cmpu    r4, r4, r7      /* n = c - n  (unsigned) */
+        blti    r4,d_xfer_end   /* if n < 0, less than one word to transfer */
+
+        /* transfer first 0~3 bytes to get aligned dest address */
+        andi    r4, r5, 3               /* n = d & 3 */
+        /* if zero, destination already aligned */
+        beqi    r4,d_dalign_done
+        rsub    r7, r4, r7              /* c = c - n adjust c */
+
+d_xfer_first_loop:
+        /* if no bytes left to transfer, transfer the bulk */
+        beqi    r4,d_dalign_done
+        addi    r6, r6, -1              /* s-- */
+        addi    r5, r5, -1              /* d-- */
+        lbui    r11, r6, 0              /* h = *s */
+        sbi     r11, r5, 0              /* *d = h */
+        brid    d_xfer_first_loop       /* loop */
+        addi    r4, r4, -1              /* n-- (IN DELAY SLOT) */
+
+d_dalign_done:
+        addi    r4, r0, 32      /* n = 32 */
+        cmpu    r4, r4, r7      /* n = c - n  (unsigned) */
+        /* if n < 0, less than one block to transfer */
+        blti    r4, d_block_done
+
+d_block_xfer:
+        andi    r4, r7, 0xffffffe0      /* n = c & ~31 */
+        rsub    r7, r4, r7              /* c = c - n */
+
+        andi    r9, r6, 3               /* t1 = s & 3 */
+        /* if temp != 0, unaligned transfers needed */
+        bnei    r9, d_block_unaligned
+
+d_block_aligned:
+        addi    r6, r6, -32             /* s = s - 32 */
+        addi    r5, r5, -32             /* d = d - 32 */
+        lwi     r9, r6, 28              /* t1 = *(s + 28) */
+        lwi     r10, r6, 24             /* t2 = *(s + 24) */
+        lwi     r11, r6, 20             /* t3 = *(s + 20) */
+        lwi     r12, r6, 16             /* t4 = *(s + 16) */
+        swi     r9, r5, 28              /* *(d + 28) = t1 */
+        swi     r10, r5, 24             /* *(d + 24) = t2 */
+        swi     r11, r5, 20             /* *(d + 20) = t3 */
+        swi     r12, r5, 16             /* *(d + 16) = t4 */
+        lwi     r9, r6, 12              /* t1 = *(s + 12) */
+        lwi     r10, r6, 8              /* t2 = *(s + 8) */
+        lwi     r11, r6, 4              /* t3 = *(s + 4) */
+        lwi     r12, r6, 0              /* t4 = *(s + 0) */
+        swi     r9, r5, 12              /* *(d + 12) = t1 */
+        swi     r10, r5, 8              /* *(d + 8) = t2 */
+        swi     r11, r5, 4              /* *(d + 4) = t3 */
+        addi    r4, r4, -32             /* n = n - 32 */
+        bneid   r4, d_block_aligned     /* while (n) loop */
+        swi     r12, r5, 0              /* *(d + 0) = t4 (IN DELAY SLOT) */
+        bri     d_block_done
+
+d_block_unaligned:
+        andi    r8, r6, 0xfffffffc      /* as = s & ~3 */
+        rsub    r6, r4, r6              /* s = s - n */
+        lwi     r11, r8, 0              /* h = *(as + 0) */
+
+        addi    r9, r9, -1
+        beqi    r9,d_block_u1           /* t1 was 1 => 1 byte offset */
+        addi    r9, r9, -1
+        beqi    r9,d_block_u2           /* t1 was 2 => 2 byte offset */
+
+d_block_u3:
+        bsrli   r11, r11, 8     /* h = h >> 8 */
+d_bu3_loop:
+        addi    r8, r8, -32     /* as = as - 32 */
+        addi    r5, r5, -32     /* d = d - 32 */
+        lwi     r12, r8, 28     /* v = *(as + 28) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 28      /* *(d + 28) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 24     /* v = *(as + 24) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 24      /* *(d + 24) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 20     /* v = *(as + 20) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 20      /* *(d + 20) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 16     /* v = *(as + 16) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 16      /* *(d + 16) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 12     /* v = *(as + 12) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 12      /* *(d + 112) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 8      /* v = *(as + 8) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 8       /* *(d + 8) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 4      /* v = *(as + 4) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 4       /* *(d + 4) = t1 */
+        bsrli   r11, r12, 8     /* h = v >> 8 */
+        lwi     r12, r8, 0      /* v = *(as + 0) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 0       /* *(d + 0) = t1 */
+        addi    r4, r4, -32     /* n = n - 32 */
+        bneid   r4, d_bu3_loop  /* while (n) loop */
+        bsrli   r11, r12, 8     /* h = v >> 8 (IN DELAY SLOT) */
+        bri     d_block_done
+
+d_block_u1:
+        bsrli   r11, r11, 24    /* h = h >> 24 */
+d_bu1_loop:
+        addi    r8, r8, -32     /* as = as - 32 */
+        addi    r5, r5, -32     /* d = d - 32 */
+        lwi     r12, r8, 28     /* v = *(as + 28) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 28      /* *(d + 28) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 24     /* v = *(as + 24) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 24      /* *(d + 24) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 20     /* v = *(as + 20) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 20      /* *(d + 20) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 16     /* v = *(as + 16) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 16      /* *(d + 16) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 12     /* v = *(as + 12) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 12      /* *(d + 112) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 8      /* v = *(as + 8) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 8       /* *(d + 8) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 4      /* v = *(as + 4) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 4       /* *(d + 4) = t1 */
+        bsrli   r11, r12, 24    /* h = v >> 24 */
+        lwi     r12, r8, 0      /* v = *(as + 0) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 0       /* *(d + 0) = t1 */
+        addi    r4, r4, -32     /* n = n - 32 */
+        bneid   r4, d_bu1_loop  /* while (n) loop */
+        bsrli   r11, r12, 24    /* h = v >> 24 (IN DELAY SLOT) */
+        bri     d_block_done
+
+d_block_u2:
+        bsrli   r11, r11, 16    /* h = h >> 16 */
+d_bu2_loop:
+        addi    r8, r8, -32     /* as = as - 32 */
+        addi    r5, r5, -32     /* d = d - 32 */
+        lwi     r12, r8, 28     /* v = *(as + 28) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 28      /* *(d + 28) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 24     /* v = *(as + 24) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 24      /* *(d + 24) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 20     /* v = *(as + 20) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 20      /* *(d + 20) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 16     /* v = *(as + 16) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 16      /* *(d + 16) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 12     /* v = *(as + 12) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 12      /* *(d + 112) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 8      /* v = *(as + 8) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 8       /* *(d + 8) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 4      /* v = *(as + 4) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 4       /* *(d + 4) = t1 */
+        bsrli   r11, r12, 16    /* h = v >> 16 */
+        lwi     r12, r8, 0      /* v = *(as + 0) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        swi     r9, r5, 0       /* *(d + 0) = t1 */
+        addi    r4, r4, -32     /* n = n - 32 */
+        bneid   r4, d_bu2_loop  /* while (n) loop */
+        bsrli   r11, r12, 16    /* h = v >> 16 (IN DELAY SLOT) */
+
+d_block_done:
+        addi    r4, r0, 4       /* n = 4 */
+        cmpu    r4, r4, r7      /* n = c - n  (unsigned) */
+        blti    r4,d_xfer_end   /* if n < 0, less than one word to transfer */
+
+d_word_xfer:
+        andi    r4, r7, 0xfffffffc      /* n = c & ~3 */
+        rsub    r5, r4, r5              /* d = d - n */
+        rsub    r6, r4, r6              /* s = s - n */
+        rsub    r7, r4, r7              /* c = c - n */
+
+        andi    r9, r6, 3               /* t1 = s & 3 */
+        /* if temp != 0, unaligned transfers needed */
+        bnei    r9, d_word_unaligned
+
+d_word_aligned:
+        addi    r4, r4,-4               /* n-- */
+        lw      r9, r6, r4              /* t1 = *(s+n) */
+        bneid   r4, d_word_aligned      /* loop */
+        sw      r9, r5, r4              /* *(d+n) = t1 (IN DELAY SLOT) */
+
+        bri     d_word_done
+
+d_word_unaligned:
+        andi    r8, r6, 0xfffffffc      /* as = s & ~3 */
+        lw      r11, r8, r4             /* h = *(as + n) */
+
+        addi    r9, r9, -1
+        beqi    r9,d_word_u1            /* t1 was 1 => 1 byte offset */
+        addi    r9, r9, -1
+        beqi    r9,d_word_u2            /* t1 was 2 => 2 byte offset */
+
+d_word_u3:
+        bsrli   r11, r11, 8     /* h = h >> 8 */
+d_wu3_loop:
+        addi    r4, r4,-4       /* n = n - 4 */
+        lw      r12, r8, r4     /* v = *(as + n) */
+        bslli   r9, r12, 24     /* t1 = v << 24 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        sw      r9, r5, r4      /* *(d + n) = t1 */
+        bneid   r4, d_wu3_loop  /* while (n) loop */
+        bsrli   r11, r12, 8     /* h = v >> 8 (IN DELAY SLOT) */
+
+        bri     d_word_done
+
+d_word_u1:
+        bsrli   r11, r11, 24    /* h = h >> 24 */
+d_wu1_loop:
+        addi    r4, r4,-4       /* n = n - 4 */
+        lw      r12, r8, r4     /* v = *(as + n) */
+        bslli   r9, r12, 8      /* t1 = v << 8 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        sw      r9, r5, r4      /* *(d + n) = t1 */
+        bneid   r4, d_wu1_loop  /* while (n) loop */
+        bsrli   r11, r12, 24    /* h = v >> 24 (IN DELAY SLOT) */
+
+        bri     d_word_done
+
+d_word_u2:
+        bsrli   r11, r11, 16    /* h = h >> 16 */
+d_wu2_loop:
+        addi    r4, r4,-4       /* n = n - 4 */
+        lw      r12, r8, r4     /* v = *(as + n) */
+        bslli   r9, r12, 16     /* t1 = v << 16 */
+        or      r9, r11, r9     /* t1 = h | t1 */
+        sw      r9, r5, r4      /* *(d + n) = t1 */
+        bneid   r4, d_wu2_loop  /* while (n) loop */
+        bsrli   r11, r12, 16    /* h = v >> 16 (IN DELAY SLOT) */
+
+d_word_done:
+
+d_xfer_end:
+d_xfer_end_loop:
+        beqi    r7, a_done              /* while (c) */
+        addi    r6, r6, -1              /* s-- */
+        lbui    r9, r6, 0               /* t1 = *s */
+        addi    r5, r5, -1              /* d-- */
+        sbi     r9, r5, 0               /* *d = t1 */
+        brid    d_xfer_end_loop         /* loop */
+        addi    r7, r7, -1              /* c-- (IN DELAY SLOT) */
+
+d_done:
+        rtsd    r15, 8
+        nop
+
+.end memmove
diff --git a/arch/microblaze/lib/memcpy.c b/arch/microblaze/lib/memcpy.c
new file mode 100644
index 000000000000..5880119c4487
--- /dev/null
+++ b/arch/microblaze/lib/memcpy.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2007 John Williams
+ *
+ * Reasonably optimised generic C-code for memcpy on Microblaze
+ * This is generic C code to do efficient, alignment-aware memcpy.
+ *
+ * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
+ * http://www.embedded.com/showArticle.jhtml?articleID=19205567
+ *
+ * Attempts were made, unsuccesfully, to contact the original
+ * author of this code (Michael Morrow, Intel).  Below is the original
+ * copyright notice.
+ *
+ * This software has been developed by Intel Corporation.
+ * Intel specifically disclaims all warranties, express or
+ * implied, and all liability, including consequential and
+ * other indirect damages, for the use of this program, including
+ * liability for infringement of any proprietary rights,
+ * and including the warranties of merchantability and fitness
+ * for a particular purpose. Intel does not assume any
+ * responsibility for and errors which may appear in this program
+ * not any responsibility to update it.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+
+#include <linux/string.h>
+#include <asm/system.h>
+
+#ifdef __HAVE_ARCH_MEMCPY
+void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
+{
+        const char *src = v_src;
+        char *dst = v_dst;
+#ifndef CONFIG_OPT_LIB_FUNCTION
+        /* Simple, byte oriented memcpy. */
+        while (c--)
+                *dst++ = *src++;
+
+        return v_dst;
+#else
+        /* The following code tries to optimize the copy by using unsigned
+         * alignment. This will work fine if both source and destination are
+         * aligned on the same boundary. However, if they are aligned on
+         * different boundaries shifts will be necessary. This might result in
+         * bad performance on MicroBlaze systems without a barrel shifter.
+         */
+        const uint32_t *i_src;
+        uint32_t *i_dst;
+
+        if (c >= 4) {
+                unsigned  value, buf_hold;
+
+                /* Align the dstination to a word boundry. */
+                /* This is done in an endian independant manner. */
+                switch ((unsigned long)dst & 3) {
+                case 1:
+                        *dst++ = *src++;
+                        --c;
+                case 2:
+                        *dst++ = *src++;
+                        --c;
+                case 3:
+                        *dst++ = *src++;
+                        --c;
+                }
+
+                i_dst = (void *)dst;
+
+                /* Choose a copy scheme based on the source */
+                /* alignment relative to dstination. */
+                switch ((unsigned long)src & 3) {
+                case 0x0:       /* Both byte offsets are aligned */
+                        i_src  = (const void *)src;
+
+                        for (; c >= 4; c -= 4)
+                                *i_dst++ = *i_src++;
+
+                        src  = (const void *)i_src;
+                        break;
+                case 0x1:       /* Unaligned - Off by 1 */
+                        /* Word align the source */
+                        i_src = (const void *) ((unsigned)src & ~3);
+
+                        /* Load the holding buffer */
+                        buf_hold = *i_src++ << 8;
+
+                        for (; c >= 4; c -= 4) {
+                                value = *i_src++;
+                                *i_dst++ = buf_hold | value >> 24;
+                                buf_hold = value << 8;
+                        }
+
+                        /* Realign the source */
+                        src = (const void *)i_src;
+                        src -= 3;
+                        break;
+                case 0x2:       /* Unaligned - Off by 2 */
+                        /* Word align the source */
+                        i_src = (const void *) ((unsigned)src & ~3);
+
+                        /* Load the holding buffer */
+                        buf_hold = *i_src++ << 16;
+
+                        for (; c >= 4; c -= 4) {
+                                value = *i_src++;
+                                *i_dst++ = buf_hold | value >> 16;
+                                buf_hold = value << 16;
+                        }
+
+                        /* Realign the source */
+                        src = (const void *)i_src;
+                        src -= 2;
+                        break;
+                case 0x3:       /* Unaligned - Off by 3 */
+                        /* Word align the source */
+                        i_src = (const void *) ((unsigned)src & ~3);
+
+                        /* Load the holding buffer */
+                        buf_hold = *i_src++ << 24;
+
+                        for (; c >= 4; c -= 4) {
+                                value = *i_src++;
+                                *i_dst++ = buf_hold | value >> 8;
+                                buf_hold = value << 24;
+                        }
+
+                        /* Realign the source */
+                        src = (const void *)i_src;
+                        src -= 1;
+                        break;
+                }
+                dst = (void *)i_dst;
+        }
+
+        /* Finish off any remaining bytes */
+        /* simple fast copy, ... unless a cache boundry is crossed */
+        switch (c) {
+        case 3:
+                *dst++ = *src++;
+        case 2:
+                *dst++ = *src++;
+        case 1:
+                *dst++ = *src++;
+        }
+
+        return v_dst;
+#endif
+}
+EXPORT_SYMBOL(memcpy);
+#endif /* __HAVE_ARCH_MEMCPY */
+
+void *cacheable_memcpy(void *d, const void *s, __kernel_size_t c)
+{
+        return memcpy(d, s, c);
+}
diff --git a/arch/microblaze/lib/memmove.c b/arch/microblaze/lib/memmove.c
new file mode 100644
index 000000000000..d4e9f49a71f7
--- /dev/null
+++ b/arch/microblaze/lib/memmove.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2007 John Williams
+ *
+ * Reasonably optimised generic C-code for memcpy on Microblaze
+ * This is generic C code to do efficient, alignment-aware memmove.
+ *
+ * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
+ * http://www.embedded.com/showArticle.jhtml?articleID=19205567
+ *
+ * Attempts were made, unsuccesfully, to contact the original
+ * author of this code (Michael Morrow, Intel).  Below is the original
+ * copyright notice.
+ *
+ * This software has been developed by Intel Corporation.
+ * Intel specifically disclaims all warranties, express or
+ * implied, and all liability, including consequential and
+ * other indirect damages, for the use of this program, including
+ * liability for infringement of any proprietary rights,
+ * and including the warranties of merchantability and fitness
+ * for a particular purpose. Intel does not assume any
+ * responsibility for and errors which may appear in this program
+ * not any responsibility to update it.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#ifdef __HAVE_ARCH_MEMMOVE
+void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
+{
+        const char *src = v_src;
+        char *dst = v_dst;
+
+#ifdef CONFIG_OPT_LIB_FUNCTION
+        const uint32_t *i_src;
+        uint32_t *i_dst;
+#endif
+
+        if (!c)
+                return v_dst;
+
+        /* Use memcpy when source is higher than dest */
+        if (v_dst <= v_src)
+                return memcpy(v_dst, v_src, c);
+
+#ifndef CONFIG_OPT_LIB_FUNCTION
+        /* copy backwards, from end to beginning */
+        src += c;
+        dst += c;
+
+        /* Simple, byte oriented memmove. */
+        while (c--)
+                *--dst = *--src;
+
+        return v_dst;
+#else
+        /* The following code tries to optimize the copy by using unsigned
+         * alignment. This will work fine if both source and destination are
+         * aligned on the same boundary. However, if they are aligned on
+         * different boundaries shifts will be necessary. This might result in
+         * bad performance on MicroBlaze systems without a barrel shifter.
+         */
+        /* FIXME this part needs more test */
+        /* Do a descending copy - this is a bit trickier! */
+        dst += c;
+        src += c;
+
+        if (c >= 4) {
+                unsigned  value, buf_hold;
+
+                /* Align the destination to a word boundry. */
+                /* This is done in an endian independant manner. */
+
+                switch ((unsigned long)dst & 3) {
+                case 3:
+                        *--dst = *--src;
+                        --c;
+                case 2:
+                        *--dst = *--src;
+                        --c;
+                case 1:
+                        *--dst = *--src;
+                        --c;
+                }
+
+                i_dst = (void *)dst;
+                /* Choose a copy scheme based on the source */
+                /* alignment relative to dstination. */
+                switch ((unsigned long)src & 3) {
+                case 0x0:       /* Both byte offsets are aligned */
+
+                        i_src  = (const void *)src;
+
+                        for (; c >= 4; c -= 4)
+                                *--i_dst = *--i_src;
+
+                        src  = (const void *)i_src;
+                        break;
+                case 0x1:       /* Unaligned - Off by 1 */
+                        /* Word align the source */
+                        i_src = (const void *) (((unsigned)src + 4) & ~3);
+
+                        /* Load the holding buffer */
+                        buf_hold = *--i_src >> 24;
+
+                        for (; c >= 4; c -= 4) {
+                                value = *--i_src;
+                                *--i_dst = buf_hold << 8 | value;
+                                buf_hold = value >> 24;
+                        }
+
+                        /* Realign the source */
+                        src = (const void *)i_src;
+                        src += 1;
+                        break;
+                case 0x2:       /* Unaligned - Off by 2 */
+                        /* Word align the source */
+                        i_src = (const void *) (((unsigned)src + 4) & ~3);
+
+                        /* Load the holding buffer */
+                        buf_hold = *--i_src >> 16;
+
+                        for (; c >= 4; c -= 4) {
+                                value = *--i_src;
+                                *--i_dst = buf_hold << 16 | value;
+                                buf_hold = value >> 16;
+                        }
+
+                        /* Realign the source */
+                        src = (const void *)i_src;
+                        src += 2;
+                        break;
+                case 0x3:       /* Unaligned - Off by 3 */
+                        /* Word align the source */
+                        i_src = (const void *) (((unsigned)src + 4) & ~3);
+
+                        /* Load the holding buffer */
+                        buf_hold = *--i_src >> 8;
+
+                        for (; c >= 4; c -= 4) {
+                                value = *--i_src;
+                                *--i_dst = buf_hold << 24 | value;
+                                buf_hold = value >> 8;
+                        }
+
+                        /* Realign the source */
+                        src = (const void *)i_src;
+                        src += 3;
+                        break;
+                }
+                dst = (void *)i_dst;
+        }
+
+        /* simple fast copy, ... unless a cache boundry is crossed */
+        /* Finish off any remaining bytes */
+        switch (c) {
+        case 4:
+                *--dst = *--src;
+        case 3:
+                *--dst = *--src;
+        case 2:
+                *--dst = *--src;
+        case 1:
+                *--dst = *--src;
+        }
+        return v_dst;
+#endif
+}
+EXPORT_SYMBOL(memmove);
+#endif /* __HAVE_ARCH_MEMMOVE */
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c
new file mode 100644
index 000000000000..941dc8f94b03
--- /dev/null
+++ b/arch/microblaze/lib/memset.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2007 John Williams
+ *
+ * Reasonably optimised generic C-code for memset on Microblaze
+ * This is generic C code to do efficient, alignment-aware memcpy.
+ *
+ * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
+ * http://www.embedded.com/showArticle.jhtml?articleID=19205567
+ *
+ * Attempts were made, unsuccesfully, to contact the original
+ * author of this code (Michael Morrow, Intel).  Below is the original
+ * copyright notice.
+ *
+ * This software has been developed by Intel Corporation.
+ * Intel specifically disclaims all warranties, express or
+ * implied, and all liability, including consequential and
+ * other indirect damages, for the use of this program, including
+ * liability for infringement of any proprietary rights,
+ * and including the warranties of merchantability and fitness
+ * for a particular purpose. Intel does not assume any
+ * responsibility for and errors which may appear in this program
+ * not any responsibility to update it.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#ifdef __HAVE_ARCH_MEMSET
+void *memset(void *v_src, int c, __kernel_size_t n)
+{
+
+        char *src = v_src;
+#ifdef CONFIG_OPT_LIB_FUNCTION
+        uint32_t *i_src;
+        uint32_t w32;
+#endif
+        /* Truncate c to 8 bits */
+        c = (c & 0xFF);
+
+#ifdef CONFIG_OPT_LIB_FUNCTION
+        /* Make a repeating word out of it */
+        w32 = c;
+        w32 |= w32 << 8;
+        w32 |= w32 << 16;
+
+        if (n >= 4) {
+                /* Align the destination to a word boundary */
+                /* This is done in an endian independant manner */
+                switch ((unsigned) src & 3) {
+                case 1:
+                        *src++ = c;
+                        --n;
+                case 2:
+                        *src++ = c;
+                        --n;
+                case 3:
+                        *src++ = c;
+                        --n;
+                }
+
+                i_src  = (void *)src;
+
+                /* Do as many full-word copies as we can */
+                for (; n >= 4; n -= 4)
+                        *i_src++ = w32;
+
+                src  = (void *)i_src;
+        }
+#endif
+        /* Simple, byte oriented memset or the rest of count. */
+        while (n--)
+                *src++ = c;
+
+        return v_src;
+}
+EXPORT_SYMBOL(memset);
+#endif /* __HAVE_ARCH_MEMSET */
diff --git a/arch/microblaze/lib/uaccess.c b/arch/microblaze/lib/uaccess.c
new file mode 100644
index 000000000000..8eb9df5a26c9
--- /dev/null
+++ b/arch/microblaze/lib/uaccess.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/string.h>
+#include <asm/uaccess.h>
+
+#include <asm/bug.h>
+
+long strnlen_user(const char __user *src, long count)
+{
+        return strlen(src) + 1;
+}
+
+#define __do_strncpy_from_user(dst, src, count, res)                    \
+        do {                                                            \
+                char *tmp;                                              \
+                strncpy(dst, src, count);                               \
+                for (tmp = dst; *tmp && count > 0; tmp++, count--)      \
+                        ;                                               \
+                res = (tmp - dst);                                      \
+        } while (0)
+
+long __strncpy_from_user(char *dst, const char __user *src, long count)
+{
+        long res;
+        __do_strncpy_from_user(dst, src, count, res);
+        return res;
+}
+
+long strncpy_from_user(char *dst, const char __user *src, long count)
+{
+        long res = -EFAULT;
+        if (access_ok(VERIFY_READ, src, 1))
+                __do_strncpy_from_user(dst, src, count, res);
+        return res;
+}
diff --git a/arch/microblaze/mm/Makefile b/arch/microblaze/mm/Makefile
new file mode 100644
index 000000000000..bf9e4479a1fd
--- /dev/null
+++ b/arch/microblaze/mm/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile
+#
+
+obj-y := init.o
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
new file mode 100644
index 000000000000..b0c8213cd6cf
--- /dev/null
+++ b/arch/microblaze/mm/init.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/bootmem.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/lmb.h>
+#include <linux/mm.h> /* mem_init */
+#include <linux/initrd.h>
+#include <linux/pagemap.h>
+#include <linux/pfn.h>
+#include <linux/swap.h>
+
+#include <asm/page.h>
+#include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
+#include <asm/sections.h>
+#include <asm/tlb.h>
+
+unsigned int __page_offset;
+/* EXPORT_SYMBOL(__page_offset); */
+
+char *klimit = _end;
+
+/*
+ * Initialize the bootmem system and give it all the memory we
+ * have available.
+ */
+unsigned int memory_start;
+unsigned int memory_end; /* due to mm/nommu.c */
+unsigned int memory_size;
+
+/*
+ * paging_init() sets up the page tables - in fact we've already done this.
+ */
+static void __init paging_init(void)
+{
+        int i;
+        unsigned long zones_size[MAX_NR_ZONES];
+
+        /*
+         * old: we can DMA to/from any address.put all page into ZONE_DMA
+         * We use only ZONE_NORMAL
+         */
+        zones_size[ZONE_NORMAL] = max_mapnr;
+
+        /* every other zones are empty */
+        for (i = 1; i < MAX_NR_ZONES; i++)
+                zones_size[i] = 0;
+
+        free_area_init(zones_size);
+}
+
+void __init setup_memory(void)
+{
+        int i;
+        unsigned long map_size;
+        u32 kernel_align_start, kernel_align_size;
+
+        /* Find main memory where is the kernel */
+        for (i = 0; i < lmb.memory.cnt; i++) {
+                memory_start = (u32) lmb.memory.region[i].base;
+                memory_end = (u32) lmb.memory.region[i].base
+                                + (u32) lmb.memory.region[i].size;
+                if ((memory_start <= (u32)_text) &&
+                                        ((u32)_text <= memory_end)) {
+                        memory_size = memory_end - memory_start;
+                        PAGE_OFFSET = memory_start;
+                        printk(KERN_INFO "%s: Main mem: 0x%x-0x%x, "
+                                "size 0x%08x\n", __func__, memory_start,
+                                                memory_end, memory_size);
+                        break;
+                }
+        }
+
+        if (!memory_start || !memory_end) {
+                panic("%s: Missing memory setting 0x%08x-0x%08x\n",
+                        __func__, memory_start, memory_end);
+        }
+
+        /* reservation of region where is the kernel */
+        kernel_align_start = PAGE_DOWN((u32)_text);
+        /* ALIGN can be remove because _end in vmlinux.lds.S is align */
+        kernel_align_size = PAGE_UP((u32)klimit) - kernel_align_start;
+        lmb_reserve(kernel_align_start, kernel_align_size);
+        printk(KERN_INFO "%s: kernel addr=0x%08x-0x%08x size=0x%08x\n",
+                __func__, kernel_align_start, kernel_align_start
+                        + kernel_align_size, kernel_align_size);
+
+        /*
+         * Kernel:
+         * start: base phys address of kernel - page align
+         * end: base phys address of kernel - page align
+         *
+         * min_low_pfn - the first page (mm/bootmem.c - node_boot_start)
+         * max_low_pfn
+         * max_mapnr - the first unused page (mm/bootmem.c - node_low_pfn)
+         * num_physpages - number of all pages
+         */
+
+        /* memory start is from the kernel end (aligned) to higher addr */
+        min_low_pfn = memory_start >> PAGE_SHIFT; /* minimum for allocation */
+        /* RAM is assumed contiguous */
+        num_physpages = max_mapnr = memory_size >> PAGE_SHIFT;
+        max_pfn = max_low_pfn = memory_end >> PAGE_SHIFT;
+
+        printk(KERN_INFO "%s: max_mapnr: %#lx\n", __func__, max_mapnr);
+        printk(KERN_INFO "%s: min_low_pfn: %#lx\n", __func__, min_low_pfn);
+        printk(KERN_INFO "%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
+
+        /*
+         * Find an area to use for the bootmem bitmap.
+         * We look for the first area which is at least
+         * 128kB in length (128kB is enough for a bitmap
+         * for 4GB of memory, using 4kB pages), plus 1 page
+         * (in case the address isn't page-aligned).
+         */
+        map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)_end)),
+                                        min_low_pfn, max_low_pfn);
+
+        lmb_reserve(PFN_UP(TOPHYS((u32)_end)) << PAGE_SHIFT, map_size);
+
+        /* free bootmem is whole main memory */
+        free_bootmem(memory_start, memory_size);
+
+        /* reserve allocate blocks */
+        for (i = 0; i < lmb.reserved.cnt; i++) {
+                pr_debug("reserved %d - 0x%08x-0x%08x\n", i,
+                        (u32) lmb.reserved.region[i].base,
+                        (u32) lmb_size_bytes(&lmb.reserved, i));
+                reserve_bootmem(lmb.reserved.region[i].base,
+                        lmb_size_bytes(&lmb.reserved, i) - 1, BOOTMEM_DEFAULT);
+        }
+        paging_init();
+}
+
+void free_init_pages(char *what, unsigned long begin, unsigned long end)
+{
+        unsigned long addr;
+
+        for (addr = begin; addr < end; addr += PAGE_SIZE) {
+                ClearPageReserved(virt_to_page(addr));
+                init_page_count(virt_to_page(addr));
+                memset((void *)addr, 0xcc, PAGE_SIZE);
+                free_page(addr);
+                totalram_pages++;
+        }
+        printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+        int pages = 0;
+        for (; start < end; start += PAGE_SIZE) {
+                ClearPageReserved(virt_to_page(start));
+                init_page_count(virt_to_page(start));
+                free_page(start);
+                totalram_pages++;
+                pages++;
+        }
+        printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages);
+}
+#endif
+
+void free_initmem(void)
+{
+        free_init_pages("unused kernel memory",
+                        (unsigned long)(&__init_begin),
+                        (unsigned long)(&__init_end));
+}
+
+/* FIXME from arch/powerpc/mm/mem.c*/
+void show_mem(void)
+{
+        printk(KERN_NOTICE "%s\n", __func__);
+}
+
+void __init mem_init(void)
+{
+        high_memory = (void *)__va(memory_end);
+        /* this will put all memory onto the freelists */
+        totalram_pages += free_all_bootmem();
+
+        printk(KERN_INFO "Memory: %luk/%luk available\n",
+               (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
+               num_physpages << (PAGE_SHIFT-10));
+}
+
+/* Check against bounds of physical memory */
+int ___range_ok(unsigned long addr, unsigned long size)
+{
+        return ((addr < memory_start) ||
+                ((addr + size) > memory_end));
+}
diff --git a/arch/microblaze/platform/Kconfig.platform b/arch/microblaze/platform/Kconfig.platform
new file mode 100644
index 000000000000..8e9b4752d3ff
--- /dev/null
+++ b/arch/microblaze/platform/Kconfig.platform
@@ -0,0 +1,85 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+# Platform selection Kconfig menu for MicroBlaze targets
+#
+
+menu "Platform options"
+choice
+        prompt "Platform"
+        default PLATFORM_MICROBLAZE_AUTO
+        help
+          Choose which hardware board/platform you are targeting.
+
+config PLATFORM_GENERIC
+        bool "Generic"
+        help
+          Choose this option for the Generic platform.
+
+endchoice
+
+config SELFMOD
+        bool "Use self modified code for intc/timer"
+        depends on EXPERIMENTAL && NO_MMU
+        default n
+        help
+          This choice enables self-modified code for interrupt controller
+          and timer.
+
+config SELFMOD_INTC
+        bool "Use self modified code for intc"
+        depends on SELFMOD
+        default y
+        help
+          This choice enables self-modified code for interrupt controller.
+
+config SELFMOD_TIMER
+        bool "Use self modified code for timer"
+        depends on SELFMOD
+        default y
+        help
+          This choice enables self-modified code for timer.
+
+config OPT_LIB_FUNCTION
+        bool "Optimalized lib function"
+        default y
+        help
+          Allows turn on optimalized library function (memcpy and memmove).
+          They are optimized by using word alignment. This will work
+          fine if both source and destination are aligned on the same
+          boundary. However, if they are aligned on different boundaries
+          shifts will be necessary. This might result in bad performance
+          on MicroBlaze systems without a barrel shifter.
+
+config OPT_LIB_ASM
+        bool "Optimalized lib function ASM"
+        depends on OPT_LIB_FUNCTION
+        default n
+        help
+          Allows turn on optimalized library function (memcpy and memmove).
+          Function are written in asm code.
+
+# This is still a bit broken - disabling for now JW 20070504
+config ALLOW_EDIT_AUTO
+        bool "Permit Display/edit of Kconfig.auto platform settings"
+        default n
+        help
+          Allows the editing of auto-generated platform settings from
+          the Kconfig.auto file. Obviously this does not change the
+          underlying hardware, so be very careful if you go editing
+          these settings.
+
+          Also, if you enable this, and edit various Kconfig.auto
+          settings, YOUR CHANGES WILL BE LOST if you then disable it
+          again. You have been warned!
+
+          If unsure, say no.
+
+comment "Automatic platform settings from Kconfig.auto"
+        depends on ALLOW_EDIT_AUTO
+
+if PLATFORM_GENERIC=y
+        source "arch/microblaze/platform/generic/Kconfig.auto"
+endif
+
+endmenu
diff --git a/arch/microblaze/platform/Makefile b/arch/microblaze/platform/Makefile
new file mode 100644
index 000000000000..ea1b75cc5775
--- /dev/null
+++ b/arch/microblaze/platform/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for arch/microblaze/platform directory
+#
+#obj-$(CONFIG_PLATFORM_GENERIC) += generic/
+
+obj-y   += platform.o
diff --git a/arch/microblaze/platform/generic/Kconfig.auto b/arch/microblaze/platform/generic/Kconfig.auto
new file mode 100644
index 000000000000..fbca22d9c8b9
--- /dev/null
+++ b/arch/microblaze/platform/generic/Kconfig.auto
@@ -0,0 +1,62 @@
+#
+# (C) Copyright 2007 Michal Simek
+#
+# Michal SIMEK <monstr@monstr.eu>
+#
+# 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
+#
+
+# Definitions for MICROBLAZE0
+comment "Definitions for MICROBLAZE0"
+        depends on ALLOW_EDIT_AUTO
+
+config KERNEL_BASE_ADDR
+        hex "Physical address where Linux Kernel is"
+        default "0x90000000"
+        help
+          BASE Address for kernel
+
+config XILINX_MICROBLAZE0_FAMILY
+        string "Targetted FPGA family" if ALLOW_EDIT_AUTO
+        default "virtex5"
+
+config XILINX_MICROBLAZE0_USE_MSR_INSTR
+        int "USE_MSR_INSTR range (0:1)" if ALLOW_EDIT_AUTO
+        default 1
+
+config XILINX_MICROBLAZE0_USE_PCMP_INSTR
+        int "USE_PCMP_INSTR range (0:1)" if ALLOW_EDIT_AUTO
+        default 1
+
+config XILINX_MICROBLAZE0_USE_BARREL
+        int "USE_BARREL range (0:1)" if ALLOW_EDIT_AUTO
+        default 1
+
+config XILINX_MICROBLAZE0_USE_DIV
+        int "USE_DIV range (0:1)" if ALLOW_EDIT_AUTO
+        default 1
+
+config XILINX_MICROBLAZE0_USE_HW_MUL
+        int "USE_HW_MUL values (0=NONE, 1=MUL32, 2=MUL64)" if ALLOW_EDIT_AUTO
+        default 2
+
+config XILINX_MICROBLAZE0_USE_FPU
+        int "USE_FPU values (0=NONE, 1=BASIC, 2=EXTENDED)" if ALLOW_EDIT_AUTO
+        default 2
+
+config XILINX_MICROBLAZE0_HW_VER
+        string "Core version number" if ALLOW_EDIT_AUTO
+        default 7.10.d
diff --git a/arch/microblaze/platform/generic/Makefile b/arch/microblaze/platform/generic/Makefile
new file mode 100644
index 000000000000..9a8b1bd3fa6d
--- /dev/null
+++ b/arch/microblaze/platform/generic/Makefile
@@ -0,0 +1,3 @@
+#
+# Empty Makefile to keep make clean happy
+#
diff --git a/arch/microblaze/platform/generic/system.dts b/arch/microblaze/platform/generic/system.dts
new file mode 100644
index 000000000000..29993f62b30a
--- /dev/null
+++ b/arch/microblaze/platform/generic/system.dts
@@ -0,0 +1,332 @@
+/*
+ * Device Tree Generator version: 1.1
+ *
+ * (C) Copyright 2007-2008 Xilinx, Inc.
+ * (C) Copyright 2007-2009 Michal Simek
+ *
+ * Michal SIMEK <monstr@monstr.eu>
+ *
+ * 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
+ *
+ * CAUTION: This file is automatically generated by libgen.
+ * Version: Xilinx EDK 10.1.03 EDK_K_SP3.6
+ *
+ * XPS project directory: Xilinx-ML505-ll_temac-sgdma-MMU-FDT-edk101
+ */
+
+/dts-v1/;
+/ {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "xlnx,microblaze";
+        model = "testing";
+        DDR2_SDRAM: memory@90000000 {
+                device_type = "memory";
+                reg = < 0x90000000 0x10000000 >;
+        } ;
+        chosen {
+                bootargs = "console=ttyUL0,115200 highres=on";
+                linux,stdout-path = "/plb@0/serial@84000000";
+        } ;
+        cpus {
+                #address-cells = <1>;
+                #cpus = <0x1>;
+                #size-cells = <0>;
+                microblaze_0: cpu@0 {
+                        clock-frequency = <125000000>;
+                        compatible = "xlnx,microblaze-7.10.d";
+                        d-cache-baseaddr = <0x90000000>;
+                        d-cache-highaddr = <0x9fffffff>;
+                        d-cache-line-size = <0x10>;
+                        d-cache-size = <0x2000>;
+                        device_type = "cpu";
+                        i-cache-baseaddr = <0x90000000>;
+                        i-cache-highaddr = <0x9fffffff>;
+                        i-cache-line-size = <0x10>;
+                        i-cache-size = <0x2000>;
+                        model = "microblaze,7.10.d";
+                        reg = <0>;
+                        timebase-frequency = <125000000>;
+                        xlnx,addr-tag-bits = <0xf>;
+                        xlnx,allow-dcache-wr = <0x1>;
+                        xlnx,allow-icache-wr = <0x1>;
+                        xlnx,area-optimized = <0x0>;
+                        xlnx,cache-byte-size = <0x2000>;
+                        xlnx,d-lmb = <0x1>;
+                        xlnx,d-opb = <0x0>;
+                        xlnx,d-plb = <0x1>;
+                        xlnx,data-size = <0x20>;
+                        xlnx,dcache-addr-tag = <0xf>;
+                        xlnx,dcache-always-used = <0x1>;
+                        xlnx,dcache-byte-size = <0x2000>;
+                        xlnx,dcache-line-len = <0x4>;
+                        xlnx,dcache-use-fsl = <0x1>;
+                        xlnx,debug-enabled = <0x1>;
+                        xlnx,div-zero-exception = <0x1>;
+                        xlnx,dopb-bus-exception = <0x0>;
+                        xlnx,dynamic-bus-sizing = <0x1>;
+                        xlnx,edge-is-positive = <0x1>;
+                        xlnx,family = "virtex5";
+                        xlnx,fpu-exception = <0x1>;
+                        xlnx,fsl-data-size = <0x20>;
+                        xlnx,fsl-exception = <0x0>;
+                        xlnx,fsl-links = <0x0>;
+                        xlnx,i-lmb = <0x1>;
+                        xlnx,i-opb = <0x0>;
+                        xlnx,i-plb = <0x1>;
+                        xlnx,icache-always-used = <0x1>;
+                        xlnx,icache-line-len = <0x4>;
+                        xlnx,icache-use-fsl = <0x1>;
+                        xlnx,ill-opcode-exception = <0x1>;
+                        xlnx,instance = "microblaze_0";
+                        xlnx,interconnect = <0x1>;
+                        xlnx,interrupt-is-edge = <0x0>;
+                        xlnx,iopb-bus-exception = <0x0>;
+                        xlnx,mmu-dtlb-size = <0x4>;
+                        xlnx,mmu-itlb-size = <0x2>;
+                        xlnx,mmu-tlb-access = <0x3>;
+                        xlnx,mmu-zones = <0x10>;
+                        xlnx,number-of-pc-brk = <0x1>;
+                        xlnx,number-of-rd-addr-brk = <0x0>;
+                        xlnx,number-of-wr-addr-brk = <0x0>;
+                        xlnx,opcode-0x0-illegal = <0x1>;
+                        xlnx,pvr = <0x2>;
+                        xlnx,pvr-user1 = <0x0>;
+                        xlnx,pvr-user2 = <0x0>;
+                        xlnx,reset-msr = <0x0>;
+                        xlnx,sco = <0x0>;
+                        xlnx,unaligned-exceptions = <0x1>;
+                        xlnx,use-barrel = <0x1>;
+                        xlnx,use-dcache = <0x1>;
+                        xlnx,use-div = <0x1>;
+                        xlnx,use-ext-brk = <0x1>;
+                        xlnx,use-ext-nm-brk = <0x1>;
+                        xlnx,use-extended-fsl-instr = <0x0>;
+                        xlnx,use-fpu = <0x2>;
+                        xlnx,use-hw-mul = <0x2>;
+                        xlnx,use-icache = <0x1>;
+                        xlnx,use-interrupt = <0x1>;
+                        xlnx,use-mmu = <0x3>;
+                        xlnx,use-msr-instr = <0x1>;
+                        xlnx,use-pcmp-instr = <0x1>;
+                } ;
+        } ;
+        mb_plb: plb@0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
+                ranges ;
+                FLASH: flash@a0000000 {
+                        bank-width = <2>;
+                        compatible = "xlnx,xps-mch-emc-2.00.a", "cfi-flash";
+                        reg = < 0xa0000000 0x2000000 >;
+                        xlnx,family = "virtex5";
+                        xlnx,include-datawidth-matching-0 = <0x1>;
+                        xlnx,include-datawidth-matching-1 = <0x0>;
+                        xlnx,include-datawidth-matching-2 = <0x0>;
+                        xlnx,include-datawidth-matching-3 = <0x0>;
+                        xlnx,include-negedge-ioregs = <0x0>;
+                        xlnx,include-plb-ipif = <0x1>;
+                        xlnx,include-wrbuf = <0x1>;
+                        xlnx,max-mem-width = <0x10>;
+                        xlnx,mch-native-dwidth = <0x20>;
+                        xlnx,mch-plb-clk-period-ps = <0x1f40>;
+                        xlnx,mch-splb-awidth = <0x20>;
+                        xlnx,mch0-accessbuf-depth = <0x10>;
+                        xlnx,mch0-protocol = <0x0>;
+                        xlnx,mch0-rddatabuf-depth = <0x10>;
+                        xlnx,mch1-accessbuf-depth = <0x10>;
+                        xlnx,mch1-protocol = <0x0>;
+                        xlnx,mch1-rddatabuf-depth = <0x10>;
+                        xlnx,mch2-accessbuf-depth = <0x10>;
+                        xlnx,mch2-protocol = <0x0>;
+                        xlnx,mch2-rddatabuf-depth = <0x10>;
+                        xlnx,mch3-accessbuf-depth = <0x10>;
+                        xlnx,mch3-protocol = <0x0>;
+                        xlnx,mch3-rddatabuf-depth = <0x10>;
+                        xlnx,mem0-width = <0x10>;
+                        xlnx,mem1-width = <0x20>;
+                        xlnx,mem2-width = <0x20>;
+                        xlnx,mem3-width = <0x20>;
+                        xlnx,num-banks-mem = <0x1>;
+                        xlnx,num-channels = <0x0>;
+                        xlnx,priority-mode = <0x0>;
+                        xlnx,synch-mem-0 = <0x0>;
+                        xlnx,synch-mem-1 = <0x0>;
+                        xlnx,synch-mem-2 = <0x0>;
+                        xlnx,synch-mem-3 = <0x0>;
+                        xlnx,synch-pipedelay-0 = <0x2>;
+                        xlnx,synch-pipedelay-1 = <0x2>;
+                        xlnx,synch-pipedelay-2 = <0x2>;
+                        xlnx,synch-pipedelay-3 = <0x2>;
+                        xlnx,tavdv-ps-mem-0 = <0x1adb0>;
+                        xlnx,tavdv-ps-mem-1 = <0x3a98>;
+                        xlnx,tavdv-ps-mem-2 = <0x3a98>;
+                        xlnx,tavdv-ps-mem-3 = <0x3a98>;
+                        xlnx,tcedv-ps-mem-0 = <0x1adb0>;
+                        xlnx,tcedv-ps-mem-1 = <0x3a98>;
+                        xlnx,tcedv-ps-mem-2 = <0x3a98>;
+                        xlnx,tcedv-ps-mem-3 = <0x3a98>;
+                        xlnx,thzce-ps-mem-0 = <0x88b8>;
+                        xlnx,thzce-ps-mem-1 = <0x1b58>;
+                        xlnx,thzce-ps-mem-2 = <0x1b58>;
+                        xlnx,thzce-ps-mem-3 = <0x1b58>;
+                        xlnx,thzoe-ps-mem-0 = <0x1b58>;
+                        xlnx,thzoe-ps-mem-1 = <0x1b58>;
+                        xlnx,thzoe-ps-mem-2 = <0x1b58>;
+                        xlnx,thzoe-ps-mem-3 = <0x1b58>;
+                        xlnx,tlzwe-ps-mem-0 = <0x88b8>;
+                        xlnx,tlzwe-ps-mem-1 = <0x0>;
+                        xlnx,tlzwe-ps-mem-2 = <0x0>;
+                        xlnx,tlzwe-ps-mem-3 = <0x0>;
+                        xlnx,twc-ps-mem-0 = <0x2af8>;
+                        xlnx,twc-ps-mem-1 = <0x3a98>;
+                        xlnx,twc-ps-mem-2 = <0x3a98>;
+                        xlnx,twc-ps-mem-3 = <0x3a98>;
+                        xlnx,twp-ps-mem-0 = <0x11170>;
+                        xlnx,twp-ps-mem-1 = <0x2ee0>;
+                        xlnx,twp-ps-mem-2 = <0x2ee0>;
+                        xlnx,twp-ps-mem-3 = <0x2ee0>;
+                        xlnx,xcl0-linesize = <0x4>;
+                        xlnx,xcl0-writexfer = <0x1>;
+                        xlnx,xcl1-linesize = <0x4>;
+                        xlnx,xcl1-writexfer = <0x1>;
+                        xlnx,xcl2-linesize = <0x4>;
+                        xlnx,xcl2-writexfer = <0x1>;
+                        xlnx,xcl3-linesize = <0x4>;
+                        xlnx,xcl3-writexfer = <0x1>;
+                } ;
+                Hard_Ethernet_MAC: xps-ll-temac@81c00000 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        compatible = "xlnx,compound";
+                        ethernet@81c00000 {
+                                compatible = "xlnx,xps-ll-temac-1.01.b";
+                                device_type = "network";
+                                interrupt-parent = <&xps_intc_0>;
+                                interrupts = < 5 2 >;
+                                llink-connected = <&PIM3>;
+                                local-mac-address = [ 02 00 00 00 00 00 ];
+                                reg = < 0x81c00000 0x40 >;
+                                xlnx,bus2core-clk-ratio = <0x1>;
+                                xlnx,phy-type = <0x1>;
+                                xlnx,phyaddr = <0x1>;
+                                xlnx,rxcsum = <0x0>;
+                                xlnx,rxfifo = <0x1000>;
+                                xlnx,temac-type = <0x0>;
+                                xlnx,txcsum = <0x0>;
+                                xlnx,txfifo = <0x1000>;
+                        } ;
+                } ;
+                IIC_EEPROM: i2c@81600000 {
+                        compatible = "xlnx,xps-iic-2.00.a";
+                        interrupt-parent = <&xps_intc_0>;
+                        interrupts = < 6 2 >;
+                        reg = < 0x81600000 0x10000 >;
+                        xlnx,clk-freq = <0x7735940>;
+                        xlnx,family = "virtex5";
+                        xlnx,gpo-width = <0x1>;
+                        xlnx,iic-freq = <0x186a0>;
+                        xlnx,scl-inertial-delay = <0x0>;
+                        xlnx,sda-inertial-delay = <0x0>;
+                        xlnx,ten-bit-adr = <0x0>;
+                } ;
+                LEDs_8Bit: gpio@81400000 {
+                        compatible = "xlnx,xps-gpio-1.00.a";
+                        interrupt-parent = <&xps_intc_0>;
+                        interrupts = < 7 2 >;
+                        reg = < 0x81400000 0x10000 >;
+                        xlnx,all-inputs = <0x0>;
+                        xlnx,all-inputs-2 = <0x0>;
+                        xlnx,dout-default = <0x0>;
+                        xlnx,dout-default-2 = <0x0>;
+                        xlnx,family = "virtex5";
+                        xlnx,gpio-width = <0x8>;
+                        xlnx,interrupt-present = <0x1>;
+                        xlnx,is-bidir = <0x1>;
+                        xlnx,is-bidir-2 = <0x1>;
+                        xlnx,is-dual = <0x0>;
+                        xlnx,tri-default = <0xffffffff>;
+                        xlnx,tri-default-2 = <0xffffffff>;
+                } ;
+                RS232_Uart_1: serial@84000000 {
+                        clock-frequency = <125000000>;
+                        compatible = "xlnx,xps-uartlite-1.00.a";
+                        current-speed = <115200>;
+                        device_type = "serial";
+                        interrupt-parent = <&xps_intc_0>;
+                        interrupts = < 8 0 >;
+                        port-number = <0>;
+                        reg = < 0x84000000 0x10000 >;
+                        xlnx,baudrate = <0x1c200>;
+                        xlnx,data-bits = <0x8>;
+                        xlnx,family = "virtex5";
+                        xlnx,odd-parity = <0x0>;
+                        xlnx,use-parity = <0x0>;
+                } ;
+                SysACE_CompactFlash: sysace@83600000 {
+                        compatible = "xlnx,xps-sysace-1.00.a";
+                        interrupt-parent = <&xps_intc_0>;
+                        interrupts = < 4 2 >;
+                        reg = < 0x83600000 0x10000 >;
+                        xlnx,family = "virtex5";
+                        xlnx,mem-width = <0x10>;
+                } ;
+                debug_module: debug@84400000 {
+                        compatible = "xlnx,mdm-1.00.d";
+                        reg = < 0x84400000 0x10000 >;
+                        xlnx,family = "virtex5";
+                        xlnx,interconnect = <0x1>;
+                        xlnx,jtag-chain = <0x2>;
+                        xlnx,mb-dbg-ports = <0x1>;
+                        xlnx,uart-width = <0x8>;
+                        xlnx,use-uart = <0x1>;
+                        xlnx,write-fsl-ports = <0x0>;
+                } ;
+                mpmc@90000000 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        compatible = "xlnx,mpmc-4.02.a";
+                        PIM3: sdma@84600180 {
+                                compatible = "xlnx,ll-dma-1.00.a";
+                                interrupt-parent = <&xps_intc_0>;
+                                interrupts = < 2 2 1 2 >;
+                                reg = < 0x84600180 0x80 >;
+                        } ;
+                } ;
+                xps_intc_0: interrupt-controller@81800000 {
+                        #interrupt-cells = <0x2>;
+                        compatible = "xlnx,xps-intc-1.00.a";
+                        interrupt-controller ;
+                        reg = < 0x81800000 0x10000 >;
+                        xlnx,kind-of-intr = <0x100>;
+                        xlnx,num-intr-inputs = <0x9>;
+                } ;
+                xps_timer_1: timer@83c00000 {
+                        compatible = "xlnx,xps-timer-1.00.a";
+                        interrupt-parent = <&xps_intc_0>;
+                        interrupts = < 3 2 >;
+                        reg = < 0x83c00000 0x10000 >;
+                        xlnx,count-width = <0x20>;
+                        xlnx,family = "virtex5";
+                        xlnx,gen0-assert = <0x1>;
+                        xlnx,gen1-assert = <0x1>;
+                        xlnx,one-timer-only = <0x0>;
+                        xlnx,trig0-assert = <0x1>;
+                        xlnx,trig1-assert = <0x1>;
+                } ;
+        } ;
+}  ;
diff --git a/arch/microblaze/platform/platform.c b/arch/microblaze/platform/platform.c
new file mode 100644
index 000000000000..56e0234fa34b
--- /dev/null
+++ b/arch/microblaze/platform/platform.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2008 Michal Simek <monstr@monstr.eu>
+ *
+ * based on virtex.c file
+ *
+ * Copyright 2007 Secret Lab Technologies Ltd.
+ *
+ * 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/init.h>
+#include <linux/of_platform.h>
+#include <asm/prom.h>
+
+static struct of_device_id xilinx_of_bus_ids[] __initdata = {
+        { .compatible = "simple-bus", },
+        { .compatible = "xlnx,plb-v46-1.00.a", },
+        { .compatible = "xlnx,opb-v20-1.10.c", },
+        { .compatible = "xlnx,opb-v20-1.10.b", },
+        { .compatible = "xlnx,compound", },
+        {}
+};
+
+static int __init microblaze_device_probe(void)
+{
+        of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL);
+        return 0;
+}
+device_initcall(microblaze_device_probe);
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index 3cb50d17b62d..12ee8d510160 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -80,6 +80,9 @@ struct rb532_gpio_reg {
 /* Compact Flash GPIO pin */
 #define CF_GPIO_NUM             13
 
+/* S1 button GPIO (shared with UART0_SIN) */
+#define GPIO_BTN_S1             1
+
 extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
 extern void rb532_gpio_set_istat(int bit, unsigned gpio);
 extern void rb532_gpio_set_func(unsigned gpio);
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 4a5f05b662ae..9f40e1ff9b4f 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -200,26 +200,9 @@ static struct platform_device rb532_led = {
         .id = -1,
 };
 
-static struct gpio_keys_button rb532_gpio_btn[] = {
-        {
-                .gpio = 1,
-                .code = BTN_0,
-                .desc = "S1",
-                .active_low = 1,
-        }
-};
-
-static struct gpio_keys_platform_data rb532_gpio_btn_data = {
-        .buttons = rb532_gpio_btn,
-        .nbuttons = ARRAY_SIZE(rb532_gpio_btn),
-};
-
 static struct platform_device rb532_button = {
-        .name   = "gpio-keys",
+        .name   = "rb532-button",
         .id     = -1,
-        .dev    = {
-                .platform_data = &rb532_gpio_btn_data,
-        }
 };
 
 static struct resource rb532_wdt_res[] = {
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h
index 414c50e2e881..94942d60ddfd 100644
--- a/arch/powerpc/include/asm/parport.h
+++ b/arch/powerpc/include/asm/parport.h
@@ -29,7 +29,7 @@ static int __devinit parport_pc_find_nonpci_ports (int autoirq, int autodma)
                 prop = of_get_property(np, "interrupts", NULL);
                 if (!prop)
                         continue;
-                if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL) != NULL)
+                if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL, 0) != NULL)
                         count++;
         }
         return count;
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index dcb667c4375a..2eca5fe0e75b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -82,6 +82,7 @@ config S390
         select USE_GENERIC_SMP_HELPERS if SMP
         select HAVE_SYSCALL_WRAPPERS
         select HAVE_FUNCTION_TRACER
+        select HAVE_DEFAULT_NO_SPIN_MUTEXES
         select HAVE_OPROFILE
         select HAVE_KPROBES
         select HAVE_KRETPROBES
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5e4babecf934..e7390dd0283d 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -14,6 +14,7 @@ config SUPERH
         select HAVE_GENERIC_DMA_COHERENT
         select HAVE_IOREMAP_PROT if MMU
         select HAVE_ARCH_TRACEHOOK
+        select HAVE_DMA_API_DEBUG
         help
           The SuperH is a RISC processor targeted for use in embedded systems
           and consumer electronics; it was also used in the Sega Dreamcast
@@ -21,7 +22,7 @@ config SUPERH
           <http://www.linux-sh.org/>.
 
 config SUPERH32
-        def_bool !SUPERH64
+        def_bool ARCH = "sh"
         select HAVE_KPROBES
         select HAVE_KRETPROBES
         select HAVE_FUNCTION_TRACER
@@ -31,7 +32,7 @@ config SUPERH32
         select ARCH_HIBERNATION_POSSIBLE if MMU
 
 config SUPERH64
-        def_bool y if CPU_SH5
+        def_bool ARCH = "sh64"
 
 config ARCH_DEFCONFIG
         string
@@ -187,6 +188,8 @@ config ARCH_SHMOBILE
         bool
         select ARCH_SUSPEND_POSSIBLE
 
+if SUPERH32
+
 choice
         prompt "Processor sub-type selection"
 
@@ -408,6 +411,15 @@ config CPU_SUBTYPE_SH7366
         select SYS_SUPPORTS_NUMA
         select SYS_SUPPORTS_CMT
 
+endchoice
+
+endif
+
+if SUPERH64
+
+choice
+        prompt "Processor sub-type selection"
+
 # SH-5 Processor Support
 
 config CPU_SUBTYPE_SH5_101
@@ -420,6 +432,8 @@ config CPU_SUBTYPE_SH5_103
 
 endchoice
 
+endif
+
 source "arch/sh/mm/Kconfig"
  
 source "arch/sh/Kconfig.cpu"
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 912458f666eb..39e46919df14 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -349,6 +349,7 @@ static int ov7725_power(struct device *dev, int mode)
 static struct ov772x_camera_info ov7725_info = {
         .buswidth  = SOCAM_DATAWIDTH_8,
         .flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
+        .edgectrl = OV772X_AUTO_EDGECTRL(0xf, 0),
         .link = {
                 .power  = ov7725_power,
         },
diff --git a/arch/sh/boards/board-urquell.c b/arch/sh/boards/board-urquell.c
index 8367d1d789c3..beb88c4da2c1 100644
--- a/arch/sh/boards/board-urquell.c
+++ b/arch/sh/boards/board-urquell.c
@@ -2,6 +2,8 @@
  * Renesas Technology Corp. SH7786 Urquell Support.
  *
  * Copyright (C) 2008  Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * Based on board-sh7785lcr.c
  * Copyright (C) 2008  Yoshihiro Shimoda
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -21,6 +23,32 @@
 #include <asm/heartbeat.h>
 #include <asm/sizes.h>
 
+/*
+ * bit  1234 5678
+ *----------------------------
+ * SW1  0101 0010  -> Pck 33MHz version
+ *     (1101 0010)    Pck 66MHz version
+ * SW2  0x1x xxxx  -> little endian
+ *                    29bit mode
+ * SW47 0001 1000  -> CS0 : on-board flash
+ *                    CS1 : SRAM, registers, LAN, PCMCIA
+ *                    38400 bps for SCIF1
+ *
+ * Address
+ * 0x00000000 - 0x04000000  (CS0)     Nor Flash
+ * 0x04000000 - 0x04200000  (CS1)     SRAM
+ * 0x05000000 - 0x05800000  (CS1)     on board register
+ * 0x05800000 - 0x06000000  (CS1)     LAN91C111
+ * 0x06000000 - 0x06400000  (CS1)     PCMCIA
+ * 0x08000000 - 0x10000000  (CS2-CS3) DDR3
+ * 0x10000000 - 0x14000000  (CS4)     PCIe
+ * 0x14000000 - 0x14800000  (CS5)     Core0 LRAM/URAM
+ * 0x14800000 - 0x15000000  (CS5)     Core1 LRAM/URAM
+ * 0x18000000 - 0x1C000000  (CS6)     ATA/NAND-Flash
+ * 0x1C000000 -             (CS7)     SH7786 Control register
+ */
+
+/* HeartBeat */
 static struct resource heartbeat_resources[] = {
         [0] = {
                 .start  = BOARDREG(SLEDR),
@@ -43,6 +71,7 @@ static struct platform_device heartbeat_device = {
         .resource       = heartbeat_resources,
 };
 
+/* LAN91C111 */
 static struct smc91x_platdata smc91x_info = {
         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 };
@@ -69,6 +98,7 @@ static struct platform_device smc91x_eth_device = {
         },
 };
 
+/* Nor Flash */
 static struct mtd_partition nor_flash_partitions[] = {
         {
                 .name           = "loader",
diff --git a/arch/sh/drivers/pci/ops-sh7785lcr.c b/arch/sh/drivers/pci/ops-sh7785lcr.c
index e8b7446a7c2b..fb0869f0bef8 100644
--- a/arch/sh/drivers/pci/ops-sh7785lcr.c
+++ b/arch/sh/drivers/pci/ops-sh7785lcr.c
@@ -48,8 +48,13 @@ EXPORT_SYMBOL(board_pci_channels);
 
 static struct sh4_pci_address_map sh7785_pci_map = {
         .window0        = {
+#if defined(CONFIG_32BIT)
+                .base   = SH7780_32BIT_DDR_BASE_ADDR,
+                .size   = 0x40000000,
+#else
                 .base   = SH7780_CS0_BASE_ADDR,
                 .size   = 0x20000000,
+#endif
         },
 
         .flags  = SH4_PCIC_NO_RESET,
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 97b2c98f05c4..93adc7119b79 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -104,6 +104,8 @@
 #define SH7780_CS5_BASE_ADDR    (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE)
 #define SH7780_CS6_BASE_ADDR    (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE)
 
+#define SH7780_32BIT_DDR_BASE_ADDR      0x40000000
+
 struct sh4_pci_address_map;
 
 /* arch/sh/drivers/pci/pci-sh7780.c */
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index e36c7b870861..0d6ac7a1db49 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/dma-debug.h>
 #include <asm/io.h>
 
 static int __init pcibios_init(void)
@@ -43,6 +44,8 @@ static int __init pcibios_init(void)
 
         pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
 
+        dma_debug_add_bus(&pci_bus_type);
+
         return 0;
 }
 subsys_initcall(pcibios_init);
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 627315ecdb52..ea9d4f41c9d2 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -3,6 +3,7 @@
 
 #include <linux/mm.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
 #include <asm/cacheflush.h>
 #include <asm/io.h>
 #include <asm-generic/dma-coherent.h>
@@ -38,16 +39,26 @@ static inline dma_addr_t dma_map_single(struct device *dev,
                                         void *ptr, size_t size,
                                         enum dma_data_direction dir)
 {
+        dma_addr_t addr = virt_to_phys(ptr);
+
 #if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
         if (dev->bus == &pci_bus_type)
-                return virt_to_phys(ptr);
+                return addr;
 #endif
         dma_cache_sync(dev, ptr, size, dir);
 
-        return virt_to_phys(ptr);
+        debug_dma_map_page(dev, virt_to_page(ptr),
+                           (unsigned long)ptr & ~PAGE_MASK, size,
+                           dir, addr, true);
+
+        return addr;
 }
 
-#define dma_unmap_single(dev, addr, size, dir)  do { } while (0)
+static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
+                                    size_t size, enum dma_data_direction dir)
+{
+        debug_dma_unmap_page(dev, addr, size, dir, true);
+}
 
 static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
                              int nents, enum dma_data_direction dir)
@@ -59,12 +70,19 @@ static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
                 dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
 #endif
                 sg[i].dma_address = sg_phys(&sg[i]);
+                sg[i].dma_length = sg[i].length;
         }
 
+        debug_dma_map_sg(dev, sg, nents, i, dir);
+
         return nents;
 }
 
-#define dma_unmap_sg(dev, sg, nents, dir)       do { } while (0)
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+                                int nents, enum dma_data_direction dir)
+{
+        debug_dma_unmap_sg(dev, sg, nents, dir);
+}
 
 static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
                                       unsigned long offset, size_t size,
@@ -111,6 +129,7 @@ static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
                 dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
 #endif
                 sg[i].dma_address = sg_phys(&sg[i]);
+                sg[i].dma_length = sg[i].length;
         }
 }
 
@@ -119,6 +138,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev,
                                            enum dma_data_direction dir)
 {
         dma_sync_single(dev, dma_handle, size, dir);
+        debug_dma_sync_single_for_cpu(dev, dma_handle, size, dir);
 }
 
 static inline void dma_sync_single_for_device(struct device *dev,
@@ -127,6 +147,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
                                               enum dma_data_direction dir)
 {
         dma_sync_single(dev, dma_handle, size, dir);
+        debug_dma_sync_single_for_device(dev, dma_handle, size, dir);
 }
 
 static inline void dma_sync_single_range_for_cpu(struct device *dev,
@@ -136,6 +157,8 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev,
                                                  enum dma_data_direction direction)
 {
         dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+        debug_dma_sync_single_range_for_cpu(dev, dma_handle,
+                                            offset, size, direction);
 }
 
 static inline void dma_sync_single_range_for_device(struct device *dev,
@@ -145,6 +168,8 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
                                                     enum dma_data_direction direction)
 {
         dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
+        debug_dma_sync_single_range_for_device(dev, dma_handle,
+                                               offset, size, direction);
 }
 
 
@@ -153,6 +178,7 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
                                        enum dma_data_direction dir)
 {
         dma_sync_sg(dev, sg, nelems, dir);
+        debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
 }
 
 static inline void dma_sync_sg_for_device(struct device *dev,
@@ -160,9 +186,9 @@ static inline void dma_sync_sg_for_device(struct device *dev,
                                           enum dma_data_direction dir)
 {
         dma_sync_sg(dev, sg, nelems, dir);
+        debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
 }
 
-
 static inline int dma_get_cache_alignment(void)
 {
         /*
diff --git a/arch/sh/include/asm/scatterlist.h b/arch/sh/include/asm/scatterlist.h
index 2084d0373693..c693d268a413 100644
--- a/arch/sh/include/asm/scatterlist.h
+++ b/arch/sh/include/asm/scatterlist.h
@@ -5,12 +5,13 @@
 
 struct scatterlist {
 #ifdef CONFIG_DEBUG_SG
-    unsigned long sg_magic;
+        unsigned long   sg_magic;
 #endif
-    unsigned long page_link;
-    unsigned int offset;/* for highmem, page offset */
-    dma_addr_t dma_address;
-    unsigned int length;
+        unsigned long   page_link;
+        unsigned int    offset;         /* for highmem, page offset */
+        unsigned int    length;
+        dma_addr_t      dma_address;
+        unsigned int    dma_length;
 };
 
 #define ISA_DMA_THRESHOLD       PHYS_ADDR_MASK
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index a3f239545897..8489a0905a87 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -37,8 +37,11 @@
 #define pcibus_to_node(bus)     ((void)(bus), -1)
 #define pcibus_to_cpumask(bus)  (pcibus_to_node(bus) == -1 ? \
                                         CPU_MASK_ALL : \
-                                        node_to_cpumask(pcibus_to_node(bus)) \
-                                )
+                                        node_to_cpumask(pcibus_to_node(bus)))
+#define cpumask_of_pcibus(bus)  (pcibus_to_node(bus) == -1 ? \
+                                        CPU_MASK_ALL_PTR : \
+                                        cpumask_of_node(pcibus_to_node(bus)))
+
 #endif
 
 #include <asm-generic/topology.h>
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index d52c000cf924..2efb819e2db3 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -341,8 +341,10 @@
 #define __NR_dup3               330
 #define __NR_pipe2              331
 #define __NR_inotify_init1      332
+#define __NR_preadv             333
+#define __NR_pwritev            334
 
-#define NR_syscalls 333
+#define NR_syscalls 335
 
 #ifdef __KERNEL__
 
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index 7c54e91753c1..6eb9d2934c0f 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -381,10 +381,12 @@
 #define __NR_dup3               358
 #define __NR_pipe2              359
 #define __NR_inotify_init1      360
+#define __NR_preadv             361
+#define __NR_pwritev            362
 
 #ifdef __KERNEL__
 
-#define NR_syscalls 361
+#define NR_syscalls 363
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 5a47e1cf442e..90e8cfff55fd 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -143,14 +143,14 @@ static void __init sh7786_usb_setup(void)
          * Set the PHY and PLL enable bit
          */
         __raw_writel(PHY_ENB | PLL_ENB, USBPCTL1);
-        while (i-- &&
-               ((__raw_readl(USBST) & ACT_PLL_STATUS) != ACT_PLL_STATUS))
+        while (i--) {
+                if (ACT_PLL_STATUS == (__raw_readl(USBST) & ACT_PLL_STATUS)) {
+                        /* Set the PHY RST bit */
+                        __raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
+                        printk(KERN_INFO "sh7786 usb setup done\n");
+                        break;
+                }
                 cpu_relax();
-
-        if (i) {
-                /* Set the PHY RST bit */
-                __raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
-                printk(KERN_INFO "sh7786 usb setup done\n");
         }
 }
 
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index e67c1733e1b9..05202edd8e21 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -349,3 +349,5 @@ ENTRY(sys_call_table)
         .long sys_dup3                  /* 330 */
         .long sys_pipe2
         .long sys_inotify_init1
+        .long sys_preadv
+        .long sys_writev
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index 557cb91f5caf..a083609f9284 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -387,3 +387,5 @@ sys_call_table:
         .long sys_dup3
         .long sys_pipe2
         .long sys_inotify_init1         /* 360 */
+        .long sys_preadv
+        .long sys_pwritev
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index edcd5fbf9651..e098ec158ddb 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -10,11 +10,22 @@
  * for more details.
  */
 #include <linux/mm.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/dma-debug.h>
+#include <linux/io.h>
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
-#include <asm/io.h>
+
+#define PREALLOC_DMA_DEBUG_ENTRIES      4096
+
+static int __init dma_init(void)
+{
+        dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+        return 0;
+}
+fs_initcall(dma_init);
 
 void *dma_alloc_coherent(struct device *dev, size_t size,
                            dma_addr_t *dma_handle, gfp_t gfp)
@@ -45,6 +56,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
         split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
 
         *dma_handle = virt_to_phys(ret);
+
+        debug_dma_alloc_coherent(dev, size, *dma_handle, ret_nocache);
+
         return ret_nocache;
 }
 EXPORT_SYMBOL(dma_alloc_coherent);
@@ -56,12 +70,15 @@ void dma_free_coherent(struct device *dev, size_t size,
         unsigned long pfn = dma_handle >> PAGE_SHIFT;
         int k;
 
-        if (!dma_release_from_coherent(dev, order, vaddr)) {
-                WARN_ON(irqs_disabled());       /* for portability */
-                for (k = 0; k < (1 << order); k++)
-                        __free_pages(pfn_to_page(pfn + k), 0);
-                iounmap(vaddr);
-        }
+        WARN_ON(irqs_disabled());       /* for portability */
+
+        if (dma_release_from_coherent(dev, order, vaddr))
+                return;
+
+        debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+        for (k = 0; k < (1 << order); k++)
+                __free_pages(pfn_to_page(pfn + k), 0);
+        iounmap(vaddr);
 }
 EXPORT_SYMBOL(dma_free_coherent);
 
diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
index dff3f0253aa8..ff9ead640c4a 100644
--- a/arch/sparc/include/asm/parport.h
+++ b/arch/sparc/include/asm/parport.h
@@ -117,7 +117,7 @@ static int __devinit ecpp_probe(struct of_device *op, const struct of_device_id
         if (!strcmp(parent->name, "dma")) {
                 p = parport_pc_probe_port(base, base + 0x400,
                                           op->irqs[0], PARPORT_DMA_NOFIFO,
-                                          op->dev.parent->parent);
+                                          op->dev.parent->parent, 0);
                 if (!p)
                         return -ENOMEM;
                 dev_set_drvdata(&op->dev, p);
@@ -168,7 +168,8 @@ static int __devinit ecpp_probe(struct of_device *op, const struct of_device_id
         p = parport_pc_probe_port(base, base + 0x400,
                                   op->irqs[0],
                                   slot,
-                                  op->dev.parent);
+                                  op->dev.parent,
+                                  0);
         err = -ENOMEM;
         if (!p)
                 goto out_disable_irq;
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index e5383e3d2f8c..73739322b6d0 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -193,8 +193,10 @@ extern void __iomem *ioremap_wc(resource_size_t offset, unsigned long size);
  */
 extern void early_ioremap_init(void);
 extern void early_ioremap_reset(void);
-extern void __iomem *early_ioremap(unsigned long offset, unsigned long size);
-extern void __iomem *early_memremap(unsigned long offset, unsigned long size);
+extern void __iomem *early_ioremap(resource_size_t phys_addr,
+                                   unsigned long size);
+extern void __iomem *early_memremap(resource_size_t phys_addr,
+                                    unsigned long size);
 extern void early_iounmap(void __iomem *addr, unsigned long size);
 
 #define IO_SPACE_LIMIT 0xffff
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 34c52370f2fe..fcf4d92e7e04 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -352,6 +352,11 @@ struct i387_soft_struct {
         u32                     entry_eip;
 };
 
+struct ymmh_struct {
+        /* 16 * 16 bytes for each YMMH-reg = 256 bytes */
+        u32 ymmh_space[64];
+};
+
 struct xsave_hdr_struct {
         u64 xstate_bv;
         u64 reserved1[2];
@@ -361,6 +366,7 @@ struct xsave_hdr_struct {
 struct xsave_struct {
         struct i387_fxsave_struct i387;
         struct xsave_hdr_struct xsave_hdr;
+        struct ymmh_struct ymmh;
         /* new processor state extensions will go here */
 } __attribute__ ((packed, aligned (64)));
 
diff --git a/arch/x86/include/asm/required-features.h b/arch/x86/include/asm/required-features.h
index d5cd6c586881..a4737dddfd58 100644
--- a/arch/x86/include/asm/required-features.h
+++ b/arch/x86/include/asm/required-features.h
@@ -50,7 +50,7 @@
 #ifdef CONFIG_X86_64
 #define NEED_PSE        0
 #define NEED_MSR        (1<<(X86_FEATURE_MSR & 31))
-#define NEED_PGE        (1<<(X86_FEATURE_PGE & 31))
+#define NEED_PGE        0
 #define NEED_FXSR       (1<<(X86_FEATURE_FXSR & 31))
 #define NEED_XMM        (1<<(X86_FEATURE_XMM & 31))
 #define NEED_XMM2       (1<<(X86_FEATURE_XMM2 & 31))
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index ec666491aaa4..72e5a4491661 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -269,6 +269,11 @@ struct _xsave_hdr {
         __u64 reserved2[5];
 };
 
+struct _ymmh_state {
+        /* 16 * 16 bytes for each YMMH-reg */
+        __u32 ymmh_space[64];
+};
+
 /*
  * Extended state pointed by the fpstate pointer in the sigcontext.
  * In addition to the fpstate, information encoded in the xstate_hdr
@@ -278,6 +283,7 @@ struct _xsave_hdr {
 struct _xstate {
         struct _fpstate fpstate;
         struct _xsave_hdr xstate_hdr;
+        struct _ymmh_state ymmh;
         /* new processor state extensions go here */
 };
 
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 1a918dde46b5..018a0a400799 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -124,7 +124,8 @@ static inline unsigned long mfn_to_local_pfn(unsigned long mfn)
 
 /* VIRT <-> MACHINE conversion */
 #define virt_to_machine(v)      (phys_to_machine(XPADDR(__pa(v))))
-#define virt_to_mfn(v)          (pfn_to_mfn(PFN_DOWN(__pa(v))))
+#define virt_to_pfn(v)          (PFN_DOWN(__pa(v)))
+#define virt_to_mfn(v)          (pfn_to_mfn(virt_to_pfn(v)))
 #define mfn_to_virt(m)          (__va(mfn_to_pfn(m) << PAGE_SHIFT))
 
 static inline unsigned long pte_mfn(pte_t pte)
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 08e9a1ac07a9..727acc152344 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -7,6 +7,7 @@
 
 #define XSTATE_FP       0x1
 #define XSTATE_SSE      0x2
+#define XSTATE_YMM      0x4
 
 #define XSTATE_FPSSE    (XSTATE_FP | XSTATE_SSE)
 
@@ -15,7 +16,7 @@
 /*
  * These are the features that the OS can handle currently.
  */
-#define XCNTXT_MASK     (XSTATE_FP | XSTATE_SSE)
+#define XCNTXT_MASK     (XSTATE_FP | XSTATE_SSE | XSTATE_YMM)
 
 #ifdef CONFIG_X86_64
 #define REX_PREFIX      "0x48, "
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 767fe7e46d68..a2789e42e162 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2524,7 +2524,6 @@ static void irq_complete_move(struct irq_desc **descp)
 static inline void irq_complete_move(struct irq_desc **descp) {}
 #endif
 
-#ifdef CONFIG_X86_X2APIC
 static void __eoi_ioapic_irq(unsigned int irq, struct irq_cfg *cfg)
 {
         int apic, pin;
@@ -2558,6 +2557,7 @@ eoi_ioapic_irq(struct irq_desc *desc)
         spin_unlock_irqrestore(&ioapic_lock, flags);
 }
 
+#ifdef CONFIG_X86_X2APIC
 static void ack_x2apic_level(unsigned int irq)
 {
         struct irq_desc *desc = irq_to_desc(irq);
@@ -2634,6 +2634,9 @@ static void ack_apic_level(unsigned int irq)
          */
         ack_APIC_irq();
 
+        if (irq_remapped(irq))
+                eoi_ioapic_irq(desc);
+
         /* Now we can move and renable the irq */
         if (unlikely(do_unmask_irq)) {
                 /* Only migrate the irq if the ack has been received.
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 9d3af380c6bd..837c2c4cc203 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -153,7 +153,8 @@ struct drv_cmd {
         u32 val;
 };
 
-static long do_drv_read(void *_cmd)
+/* Called via smp_call_function_single(), on the target CPU */
+static void do_drv_read(void *_cmd)
 {
         struct drv_cmd *cmd = _cmd;
         u32 h;
@@ -170,10 +171,10 @@ static long do_drv_read(void *_cmd)
         default:
                 break;
         }
-        return 0;
 }
 
-static long do_drv_write(void *_cmd)
+/* Called via smp_call_function_many(), on the target CPUs */
+static void do_drv_write(void *_cmd)
 {
         struct drv_cmd *cmd = _cmd;
         u32 lo, hi;
@@ -192,23 +193,18 @@ static long do_drv_write(void *_cmd)
         default:
                 break;
         }
-        return 0;
 }
 
 static void drv_read(struct drv_cmd *cmd)
 {
         cmd->val = 0;
 
-        work_on_cpu(cpumask_any(cmd->mask), do_drv_read, cmd);
+        smp_call_function_single(cpumask_any(cmd->mask), do_drv_read, cmd, 1);
 }
 
 static void drv_write(struct drv_cmd *cmd)
 {
-        unsigned int i;
-
-        for_each_cpu(i, cmd->mask) {
-                work_on_cpu(i, do_drv_write, cmd);
-        }
+        smp_call_function_many(cmd->mask, do_drv_write, cmd, 1);
 }
 
 static u32 get_cur_val(const struct cpumask *mask)
@@ -252,15 +248,13 @@ struct perf_pair {
         } aperf, mperf;
 };
 
-
-static long read_measured_perf_ctrs(void *_cur)
+/* Called via smp_call_function_single(), on the target CPU */
+static void read_measured_perf_ctrs(void *_cur)
 {
         struct perf_pair *cur = _cur;
 
         rdmsr(MSR_IA32_APERF, cur->aperf.split.lo, cur->aperf.split.hi);
         rdmsr(MSR_IA32_MPERF, cur->mperf.split.lo, cur->mperf.split.hi);
-
-        return 0;
 }
 
 /*
@@ -283,7 +277,7 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
         unsigned int perf_percent;
         unsigned int retval;
 
-        if (!work_on_cpu(cpu, read_measured_perf_ctrs, &readin))
+        if (smp_call_function_single(cpu, read_measured_perf_ctrs, &readin, 1))
                 return 0;
 
         cur.aperf.whole = readin.aperf.whole -
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index dce99dca6cf8..70fd7e414c15 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -679,7 +679,7 @@ void __init get_smp_config(void)
         __get_smp_config(0);
 }
 
-static void smp_reserve_bootmem(struct mpf_intel *mpf)
+static void __init smp_reserve_bootmem(struct mpf_intel *mpf)
 {
         unsigned long size = get_mpc_size(mpf->physptr);
 #ifdef CONFIG_X86_32
@@ -838,7 +838,7 @@ static int  __init get_MP_intsrc_index(struct mpc_intsrc *m)
 
 static struct mpc_intsrc __initdata *m_spare[SPARE_SLOT_NUM];
 
-static void check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
+static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
 {
         int i;
 
@@ -866,7 +866,8 @@ static void check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
         }
 }
 #else /* CONFIG_X86_IO_APIC */
-static inline void check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
+static
+inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
 #endif /* CONFIG_X86_IO_APIC */
 
 static int check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length,
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 2b54fe002e94..0a5b04aa98f1 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -324,7 +324,7 @@ void __ref xsave_cntxt_init(void)
         }
 
         /*
-         * for now OS knows only about FP/SSE
+         * Support only the state known to OS.
          */
         pcntxt_mask = pcntxt_mask & XCNTXT_MASK;
         xsave_init();
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index be54176e9eb2..6340cef6798a 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -219,6 +219,22 @@ static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
         return 1;
 }
 
+/**
+ * get_user_pages_fast() - pin user pages in memory
+ * @start:      starting user address
+ * @nr_pages:   number of pages from start to pin
+ * @write:      whether pages will be written to
+ * @pages:      array that receives pointers to the pages pinned.
+ *              Should be at least nr_pages long.
+ *
+ * Attempt to pin user pages in memory without taking mm->mmap_sem.
+ * If not successful, it will fall back to taking the lock and
+ * calling get_user_pages().
+ *
+ * Returns number of pages pinned. This may be fewer than the number
+ * requested. If nr_pages is 0 or negative, returns 0. If no pages
+ * were pinned, returns -errno.
+ */
 int get_user_pages_fast(unsigned long start, int nr_pages, int write,
                         struct page **pages)
 {
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 0dfa09d69e80..09daebfdb11c 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -547,7 +547,7 @@ void __init early_ioremap_reset(void)
 }
 
 static void __init __early_set_fixmap(enum fixed_addresses idx,
-                                   unsigned long phys, pgprot_t flags)
+                                      phys_addr_t phys, pgprot_t flags)
 {
         unsigned long addr = __fix_to_virt(idx);
         pte_t *pte;
@@ -566,7 +566,7 @@ static void __init __early_set_fixmap(enum fixed_addresses idx,
 }
 
 static inline void __init early_set_fixmap(enum fixed_addresses idx,
-                                           unsigned long phys, pgprot_t prot)
+                                           phys_addr_t phys, pgprot_t prot)
 {
         if (after_paging_init)
                 __set_fixmap(idx, phys, prot);
@@ -607,9 +607,10 @@ static int __init check_early_ioremap_leak(void)
 late_initcall(check_early_ioremap_leak);
 
 static void __init __iomem *
-__early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
+__early_ioremap(resource_size_t phys_addr, unsigned long size, pgprot_t prot)
 {
-        unsigned long offset, last_addr;
+        unsigned long offset;
+        resource_size_t last_addr;
         unsigned int nrpages;
         enum fixed_addresses idx0, idx;
         int i, slot;
@@ -625,15 +626,15 @@ __early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
         }
 
         if (slot < 0) {
-                printk(KERN_INFO "early_iomap(%08lx, %08lx) not found slot\n",
-                         phys_addr, size);
+                printk(KERN_INFO "early_iomap(%08llx, %08lx) not found slot\n",
+                         (u64)phys_addr, size);
                 WARN_ON(1);
                 return NULL;
         }
 
         if (early_ioremap_debug) {
-                printk(KERN_INFO "early_ioremap(%08lx, %08lx) [%d] => ",
-                       phys_addr, size, slot);
+                printk(KERN_INFO "early_ioremap(%08llx, %08lx) [%d] => ",
+                       (u64)phys_addr, size, slot);
                 dump_stack();
         }
 
@@ -680,13 +681,15 @@ __early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
 }
 
 /* Remap an IO device */
-void __init __iomem *early_ioremap(unsigned long phys_addr, unsigned long size)
+void __init __iomem *
+early_ioremap(resource_size_t phys_addr, unsigned long size)
 {
         return __early_ioremap(phys_addr, size, PAGE_KERNEL_IO);
 }
 
 /* Remap memory */
-void __init __iomem *early_memremap(unsigned long phys_addr, unsigned long size)
+void __init __iomem *
+early_memremap(resource_size_t phys_addr, unsigned long size)
 {
         return __early_ioremap(phys_addr, size, PAGE_KERNEL);
 }
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 640339ee4fb2..c009a241d562 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -31,7 +31,7 @@
 #ifdef CONFIG_X86_PAT
 int __read_mostly pat_enabled = 1;
 
-void __cpuinit pat_disable(const char *reason)
+static inline void pat_disable(const char *reason)
 {
         pat_enabled = 0;
         printk(KERN_INFO "%s\n", reason);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 82cd39a6cbd3..f09e8c36ee80 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -42,6 +42,7 @@
 #include <asm/xen/hypervisor.h>
 #include <asm/fixmap.h>
 #include <asm/processor.h>
+#include <asm/proto.h>
 #include <asm/msr-index.h>
 #include <asm/setup.h>
 #include <asm/desc.h>
@@ -168,21 +169,23 @@ static void __init xen_banner(void)
                xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : "");
 }
 
+static __read_mostly unsigned int cpuid_leaf1_edx_mask = ~0;
+static __read_mostly unsigned int cpuid_leaf1_ecx_mask = ~0;
+
 static void xen_cpuid(unsigned int *ax, unsigned int *bx,
                       unsigned int *cx, unsigned int *dx)
 {
+        unsigned maskecx = ~0;
         unsigned maskedx = ~0;
 
         /*
          * Mask out inconvenient features, to try and disable as many
          * unsupported kernel subsystems as possible.
          */
-        if (*ax == 1)
-                maskedx = ~((1 << X86_FEATURE_APIC) |  /* disable APIC */
-                            (1 << X86_FEATURE_ACPI) |  /* disable ACPI */
-                            (1 << X86_FEATURE_MCE)  |  /* disable MCE */
-                            (1 << X86_FEATURE_MCA)  |  /* disable MCA */
-                            (1 << X86_FEATURE_ACC));   /* thermal monitoring */
+        if (*ax == 1) {
+                maskecx = cpuid_leaf1_ecx_mask;
+                maskedx = cpuid_leaf1_edx_mask;
+        }
 
         asm(XEN_EMULATE_PREFIX "cpuid"
                 : "=a" (*ax),
@@ -190,9 +193,43 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
                   "=c" (*cx),
                   "=d" (*dx)
                 : "0" (*ax), "2" (*cx));
+
+        *cx &= maskecx;
         *dx &= maskedx;
 }
 
+static __init void xen_init_cpuid_mask(void)
+{
+        unsigned int ax, bx, cx, dx;
+
+        cpuid_leaf1_edx_mask =
+                ~((1 << X86_FEATURE_MCE)  |  /* disable MCE */
+                  (1 << X86_FEATURE_MCA)  |  /* disable MCA */
+                  (1 << X86_FEATURE_ACC));   /* thermal monitoring */
+
+        if (!xen_initial_domain())
+                cpuid_leaf1_edx_mask &=
+                        ~((1 << X86_FEATURE_APIC) |  /* disable local APIC */
+                          (1 << X86_FEATURE_ACPI));  /* disable ACPI */
+
+        ax = 1;
+        xen_cpuid(&ax, &bx, &cx, &dx);
+
+        /* cpuid claims we support xsave; try enabling it to see what happens */
+        if (cx & (1 << (X86_FEATURE_XSAVE % 32))) {
+                unsigned long cr4;
+
+                set_in_cr4(X86_CR4_OSXSAVE);
+                
+                cr4 = read_cr4();
+
+                if ((cr4 & X86_CR4_OSXSAVE) == 0)
+                        cpuid_leaf1_ecx_mask &= ~(1 << (X86_FEATURE_XSAVE % 32));
+
+                clear_in_cr4(X86_CR4_OSXSAVE);
+        }
+}
+
 static void xen_set_debugreg(int reg, unsigned long val)
 {
         HYPERVISOR_set_debugreg(reg, val);
@@ -284,12 +321,11 @@ static void xen_set_ldt(const void *addr, unsigned entries)
 
 static void xen_load_gdt(const struct desc_ptr *dtr)
 {
-        unsigned long *frames;
         unsigned long va = dtr->address;
         unsigned int size = dtr->size + 1;
         unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+        unsigned long frames[pages];
         int f;
-        struct multicall_space mcs;
 
         /* A GDT can be up to 64k in size, which corresponds to 8192
            8-byte entries, or 16 4k pages.. */
@@ -297,19 +333,26 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
         BUG_ON(size > 65536);
         BUG_ON(va & ~PAGE_MASK);
 
-        mcs = xen_mc_entry(sizeof(*frames) * pages);
-        frames = mcs.args;
-
         for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
-                frames[f] = arbitrary_virt_to_mfn((void *)va);
+                int level;
+                pte_t *ptep = lookup_address(va, &level);
+                unsigned long pfn, mfn;
+                void *virt;
+
+                BUG_ON(ptep == NULL);
+
+                pfn = pte_pfn(*ptep);
+                mfn = pfn_to_mfn(pfn);
+                virt = __va(PFN_PHYS(pfn));
+
+                frames[f] = mfn;
 
                 make_lowmem_page_readonly((void *)va);
-                make_lowmem_page_readonly(mfn_to_virt(frames[f]));
+                make_lowmem_page_readonly(virt);
         }
 
-        MULTI_set_gdt(mcs.mc, frames, size / sizeof(struct desc_struct));
-
-        xen_mc_issue(PARAVIRT_LAZY_CPU);
+        if (HYPERVISOR_set_gdt(frames, size / sizeof(struct desc_struct)))
+                BUG();
 }
 
 static void load_TLS_descriptor(struct thread_struct *t,
@@ -385,7 +428,7 @@ static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum,
 static int cvt_gate_to_trap(int vector, const gate_desc *val,
                             struct trap_info *info)
 {
-        if (val->type != 0xf && val->type != 0xe)
+        if (val->type != GATE_TRAP && val->type != GATE_INTERRUPT)
                 return 0;
 
         info->vector = vector;
@@ -393,8 +436,8 @@ static int cvt_gate_to_trap(int vector, const gate_desc *val,
         info->cs = gate_segment(*val);
         info->flags = val->dpl;
         /* interrupt gates clear IF */
-        if (val->type == 0xe)
-                info->flags |= 4;
+        if (val->type == GATE_INTERRUPT)
+                info->flags |= 1 << 2;
 
         return 1;
 }
@@ -872,7 +915,6 @@ static const struct machine_ops __initdata xen_machine_ops = {
         .emergency_restart = xen_emergency_restart,
 };
 
-
 /* First C function to be called on Xen boot */
 asmlinkage void __init xen_start_kernel(void)
 {
@@ -897,6 +939,8 @@ asmlinkage void __init xen_start_kernel(void)
 
         xen_init_irq_ops();
 
+        xen_init_cpuid_mask();
+
 #ifdef CONFIG_X86_LOCAL_APIC
         /*
          * set up the basic apic ops.
@@ -938,6 +982,11 @@ asmlinkage void __init xen_start_kernel(void)
         if (!xen_initial_domain())
                 __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
 
+#ifdef CONFIG_X86_64
+        /* Work out if we support NX */
+        check_efer();
+#endif
+
         /* Don't do the full vcpu_info placement stuff until we have a
            possible map and a non-dummy shared_info. */
         per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 2a81838a9ab7..9842b1212407 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -184,7 +184,7 @@ static inline unsigned p2m_index(unsigned long pfn)
 }
 
 /* Build the parallel p2m_top_mfn structures */
-void xen_setup_mfn_list_list(void)
+static void __init xen_build_mfn_list_list(void)
 {
         unsigned pfn, idx;
 
@@ -198,7 +198,10 @@ void xen_setup_mfn_list_list(void)
                 unsigned topidx = idx * P2M_ENTRIES_PER_PAGE;
                 p2m_top_mfn_list[idx] = virt_to_mfn(&p2m_top_mfn[topidx]);
         }
+}
 
+void xen_setup_mfn_list_list(void)
+{
         BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
 
         HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list =
@@ -218,6 +221,8 @@ void __init xen_build_dynamic_phys_to_machine(void)
 
                 p2m_top[topidx] = &mfn_list[pfn];
         }
+
+        xen_build_mfn_list_list();
 }
 
 unsigned long get_phys_to_machine(unsigned long pfn)
@@ -233,47 +238,74 @@ unsigned long get_phys_to_machine(unsigned long pfn)
 }
 EXPORT_SYMBOL_GPL(get_phys_to_machine);
 
-static void alloc_p2m(unsigned long **pp, unsigned long *mfnp)
+/* install a  new p2m_top page */
+bool install_p2mtop_page(unsigned long pfn, unsigned long *p)
 {
-        unsigned long *p;
+        unsigned topidx = p2m_top_index(pfn);
+        unsigned long **pfnp, *mfnp;
         unsigned i;
 
-        p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
-        BUG_ON(p == NULL);
+        pfnp = &p2m_top[topidx];
+        mfnp = &p2m_top_mfn[topidx];
 
         for (i = 0; i < P2M_ENTRIES_PER_PAGE; i++)
                 p[i] = INVALID_P2M_ENTRY;
 
-        if (cmpxchg(pp, p2m_missing, p) != p2m_missing)
-                free_page((unsigned long)p);
-        else
+        if (cmpxchg(pfnp, p2m_missing, p) == p2m_missing) {
                 *mfnp = virt_to_mfn(p);
+                return true;
+        }
+
+        return false;
 }
 
-void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+static void alloc_p2m(unsigned long pfn)
 {
-        unsigned topidx, idx;
+        unsigned long *p;
 
-        if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
-                BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
-                return;
-        }
+        p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
+        BUG_ON(p == NULL);
+
+        if (!install_p2mtop_page(pfn, p))
+                free_page((unsigned long)p);
+}
+
+/* Try to install p2m mapping; fail if intermediate bits missing */
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+        unsigned topidx, idx;
 
         if (unlikely(pfn >= MAX_DOMAIN_PAGES)) {
                 BUG_ON(mfn != INVALID_P2M_ENTRY);
-                return;
+                return true;
         }
 
         topidx = p2m_top_index(pfn);
         if (p2m_top[topidx] == p2m_missing) {
-                /* no need to allocate a page to store an invalid entry */
                 if (mfn == INVALID_P2M_ENTRY)
-                        return;
-                alloc_p2m(&p2m_top[topidx], &p2m_top_mfn[topidx]);
+                        return true;
+                return false;
         }
 
         idx = p2m_index(pfn);
         p2m_top[topidx][idx] = mfn;
+
+        return true;
+}
+
+void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+        if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
+                BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
+                return;
+        }
+
+        if (unlikely(!__set_phys_to_machine(pfn, mfn)))  {
+                alloc_p2m(pfn);
+
+                if (!__set_phys_to_machine(pfn, mfn))
+                        BUG();
+        }
 }
 
 unsigned long arbitrary_virt_to_mfn(void *vaddr)
@@ -987,7 +1019,7 @@ static __init int xen_mark_pinned(struct mm_struct *mm, struct page *page,
         return 0;
 }
 
-void __init xen_mark_init_mm_pinned(void)
+static void __init xen_mark_init_mm_pinned(void)
 {
         xen_pgd_walk(&init_mm, xen_mark_pinned, FIXADDR_TOP);
 }
@@ -1270,8 +1302,8 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
         } *args;
         struct multicall_space mcs;
 
-        BUG_ON(cpumask_empty(cpus));
-        BUG_ON(!mm);
+        if (cpumask_empty(cpus))
+                return;         /* nothing to do */
 
         mcs = xen_mc_entry(sizeof(*args));
         args = mcs.args;
@@ -1438,6 +1470,15 @@ static __init void xen_set_pte_init(pte_t *ptep, pte_t pte)
 }
 #endif
 
+static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
+{
+        struct mmuext_op op;
+        op.cmd = cmd;
+        op.arg1.mfn = pfn_to_mfn(pfn);
+        if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
+                BUG();
+}
+
 /* Early in boot, while setting up the initial pagetable, assume
    everything is pinned. */
 static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn)
@@ -1446,22 +1487,29 @@ static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn)
         BUG_ON(mem_map);        /* should only be used early */
 #endif
         make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
+        pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
+}
+
+/* Used for pmd and pud */
+static __init void xen_alloc_pmd_init(struct mm_struct *mm, unsigned long pfn)
+{
+#ifdef CONFIG_FLATMEM
+        BUG_ON(mem_map);        /* should only be used early */
+#endif
+        make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
 }
 
 /* Early release_pte assumes that all pts are pinned, since there's
    only init_mm and anything attached to that is pinned. */
-static void xen_release_pte_init(unsigned long pfn)
+static __init void xen_release_pte_init(unsigned long pfn)
 {
+        pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
         make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
 }
 
-static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
+static __init void xen_release_pmd_init(unsigned long pfn)
 {
-        struct mmuext_op op;
-        op.cmd = cmd;
-        op.arg1.mfn = pfn_to_mfn(pfn);
-        if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
-                BUG();
+        make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
 }
 
 /* This needs to make sure the new pte page is pinned iff its being
@@ -1773,6 +1821,9 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot)
 #ifdef CONFIG_X86_LOCAL_APIC
         case FIX_APIC_BASE:     /* maps dummy local APIC */
 #endif
+        case FIX_TEXT_POKE0:
+        case FIX_TEXT_POKE1:
+                /* All local page mappings */
                 pte = pfn_pte(phys, prot);
                 break;
 
@@ -1819,7 +1870,6 @@ __init void xen_post_allocator_init(void)
         xen_mark_init_mm_pinned();
 }
 
-
 const struct pv_mmu_ops xen_mmu_ops __initdata = {
         .pagetable_setup_start = xen_pagetable_setup_start,
         .pagetable_setup_done = xen_pagetable_setup_done,
@@ -1843,9 +1893,9 @@ const struct pv_mmu_ops xen_mmu_ops __initdata = {
 
         .alloc_pte = xen_alloc_pte_init,
         .release_pte = xen_release_pte_init,
-        .alloc_pmd = xen_alloc_pte_init,
+        .alloc_pmd = xen_alloc_pmd_init,
         .alloc_pmd_clone = paravirt_nop,
-        .release_pmd = xen_release_pte_init,
+        .release_pmd = xen_release_pmd_init,
 
 #ifdef CONFIG_HIGHPTE
         .kmap_atomic_pte = xen_kmap_atomic_pte,
@@ -1883,8 +1933,8 @@ const struct pv_mmu_ops xen_mmu_ops __initdata = {
         .make_pud = PV_CALLEE_SAVE(xen_make_pud),
         .set_pgd = xen_set_pgd_hyper,
 
-        .alloc_pud = xen_alloc_pte_init,
-        .release_pud = xen_release_pte_init,
+        .alloc_pud = xen_alloc_pmd_init,
+        .release_pud = xen_release_pmd_init,
 #endif  /* PAGETABLE_LEVELS == 4 */
 
         .activate_mm = xen_activate_mm,
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index 24d1b44a337d..da7302624897 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -11,6 +11,9 @@ enum pt_level {
 };
 
 
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
+bool install_p2mtop_page(unsigned long pfn, unsigned long *p);
+
 void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
 
 
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 585a6e330837..429834ec1687 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -317,7 +317,7 @@ static int __cpuinit xen_cpu_up(unsigned int cpu)
         BUG_ON(rc);
 
         while(per_cpu(cpu_state, cpu) != CPU_ONLINE) {
-                HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+                HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
                 barrier();
         }
 
@@ -422,7 +422,7 @@ static void xen_smp_send_call_function_ipi(const struct cpumask *mask)
         /* Make sure other vcpus get a chance to run if they need to. */
         for_each_cpu(cpu, mask) {
                 if (xen_vcpu_stolen(cpu)) {
-                        HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+                        HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
                         break;
                 }
         }
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 2f5ef2632ea2..20139464943c 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -57,8 +57,6 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
 
 bool xen_vcpu_stolen(int vcpu);
 
-void xen_mark_init_mm_pinned(void);
-
 void xen_setup_vcpu_info_placement(void);
 
 #ifdef CONFIG_SMP
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 57be6bea48eb..08186ecbaf8d 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -114,6 +114,7 @@ enum {
         board_ahci_sb700        = 5, /* for SB700 and SB800 */
         board_ahci_mcp65        = 6,
         board_ahci_nopmp        = 7,
+        board_ahci_yesncq       = 8,
 
         /* global controller registers */
         HOST_CAP                = 0x00, /* host capabilities */
@@ -469,6 +470,14 @@ static const struct ata_port_info ahci_port_info[] = {
                 .udma_mask      = ATA_UDMA6,
                 .port_ops       = &ahci_ops,
         },
+        /* board_ahci_yesncq */
+        {
+                AHCI_HFLAGS     (AHCI_HFLAG_YES_NCQ),
+                .flags          = AHCI_FLAG_COMMON,
+                .pio_mask       = ATA_PIO4,
+                .udma_mask      = ATA_UDMA6,
+                .port_ops       = &ahci_ops,
+        },
 };
 
 static const struct pci_device_id ahci_pci_tbl[] = {
@@ -535,30 +544,30 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },      /* MCP65 */
         { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },      /* MCP65 */
         { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },      /* MCP65 */
-        { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci },            /* MCP67 */
-        { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci },            /* MCP73 */
-        { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci },            /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_yesncq },     /* MCP73 */
+        { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_yesncq },     /* MCP73 */
         { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci },            /* MCP77 */
         { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci },            /* MCP77 */
         { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci },            /* MCP77 */
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e7ea77cf6069..065507c46644 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6110,13 +6110,11 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
                         ata_port_printk(ap, KERN_INFO, "DUMMY\n");
         }
 
-        /* perform each probe synchronously */
-        DPRINTK("probe begin\n");
+        /* perform each probe asynchronously */
         for (i = 0; i < host->n_ports; i++) {
                 struct ata_port *ap = host->ports[i];
                 async_schedule(async_port_probe, ap);
         }
-        DPRINTK("probe end\n");
 
         return 0;
 }
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index 98e8c50703b3..bdd43c7f432e 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -566,7 +566,7 @@ static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         static int printed_version;
         unsigned int i;
         int rc;
-        struct ata_host *host;
+        struct ata_host *host = NULL;
         int board_id = (int) ent->driver_data;
         const unsigned *bar_sizes;
 
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index be204308cc1b..9359613addc5 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -1059,7 +1059,7 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
                 goto out;
         }
 
-        err = pci_set_dma_mask(dev, DMA_32BIT_MASK);
+        err = pci_set_dma_mask(dev, DMA_BIT_MASK(32));
         if (err) {
                 dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
                 goto out;
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 0ef6f08aa6ea..4d4d5e0d3fa6 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3505,7 +3505,7 @@ static __devinit int cciss_message(struct pci_dev *pdev, unsigned char opcode, u
         /* The Inbound Post Queue only accepts 32-bit physical addresses for the
            CCISS commands, so they must be allocated from the lower 4GiB of
            memory. */
-        err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+        err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
         if (err) {
                 iounmap(vaddr);
                 return -ENOMEM;
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 9d9490e22e07..3686912427ba 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -2131,6 +2131,8 @@ static const struct intel_driver_description {
         { PCI_DEVICE_ID_INTEL_82845G_HB, PCI_DEVICE_ID_INTEL_82845G_IG, 0, "830M",
                 &intel_845_driver, &intel_830_driver },
         { PCI_DEVICE_ID_INTEL_82850_HB, 0, 0, "i850", &intel_850_driver, NULL },
+        { PCI_DEVICE_ID_INTEL_82854_HB, PCI_DEVICE_ID_INTEL_82854_IG, 0, "854",
+                &intel_845_driver, &intel_830_driver },
         { PCI_DEVICE_ID_INTEL_82855PM_HB, 0, 0, "855PM", &intel_845_driver, NULL },
         { PCI_DEVICE_ID_INTEL_82855GM_HB, PCI_DEVICE_ID_INTEL_82855GM_IG, 0, "855GM",
                 &intel_845_driver, &intel_830_driver },
@@ -2355,6 +2357,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
         ID(PCI_DEVICE_ID_INTEL_82845_HB),
         ID(PCI_DEVICE_ID_INTEL_82845G_HB),
         ID(PCI_DEVICE_ID_INTEL_82850_HB),
+        ID(PCI_DEVICE_ID_INTEL_82854_HB),
         ID(PCI_DEVICE_ID_INTEL_82855PM_HB),
         ID(PCI_DEVICE_ID_INTEL_82855GM_HB),
         ID(PCI_DEVICE_ID_INTEL_82860_HB),
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 6de020d078e1..b0a6a3e51924 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -35,7 +35,6 @@
 #include <linux/vt_kern.h>
 #include <linux/workqueue.h>
 #include <linux/kexec.h>
-#include <linux/interrupt.h>
 #include <linux/hrtimer.h>
 #include <linux/oom.h>
 
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index 28f2c3f959b5..6ad95c8d6363 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -767,11 +767,19 @@ static inline void pci_write_bits16(struct pci_dev *pdev, int offset,
         pci_write_config_word(pdev, offset, value);
 }
 
-/* write all or some bits in a dword-register*/
+/*
+ * pci_write_bits32
+ *
+ * edac local routine to do pci_write_config_dword, but adds
+ * a mask parameter. If mask is all ones, ignore the mask.
+ * Otherwise utilize the mask to isolate specified bits
+ *
+ * write all or some bits in a dword-register
+ */
 static inline void pci_write_bits32(struct pci_dev *pdev, int offset,
                                     u32 value, u32 mask)
 {
-        if (mask != 0xffff) {
+        if (mask != 0xffffffff) {
                 u32 buf;
 
                 pci_read_config_dword(pdev, offset, &buf);
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index ca9113e1c106..a7d2c717d033 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -389,7 +389,7 @@ static void del_edac_device_from_global_list(struct edac_device_ctl_info
  */
 static void edac_device_workq_function(struct work_struct *work_req)
 {
-        struct delayed_work *d_work = (struct delayed_work *)work_req;
+        struct delayed_work *d_work = to_delayed_work(work_req);
         struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work);
 
         mutex_lock(&device_ctls_mutex);
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 25d66940b4fa..335b7ebdb11c 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -260,7 +260,7 @@ static int edac_mc_assert_error_check_and_clear(void)
  */
 static void edac_mc_workq_function(struct work_struct *work_req)
 {
-        struct delayed_work *d_work = (struct delayed_work *)work_req;
+        struct delayed_work *d_work = to_delayed_work(work_req);
         struct mem_ctl_info *mci = to_edac_mem_ctl_work(d_work);
 
         mutex_lock(&mem_ctls_mutex);
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index 5b150aea703a..30b585b1d60b 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -233,7 +233,7 @@ EXPORT_SYMBOL_GPL(edac_pci_find);
  */
 static void edac_pci_workq_function(struct work_struct *work_req)
 {
-        struct delayed_work *d_work = (struct delayed_work *)work_req;
+        struct delayed_work *d_work = to_delayed_work(work_req);
         struct edac_pci_ctl_info *pci = to_edac_pci_ctl_work(d_work);
         int msec;
         unsigned long delay;
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 0e8a9185f676..d73f5f473e38 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -692,6 +692,16 @@ config SENSORS_PCF8591
           These devices are hard to detect and rarely found on mainstream
           hardware.  If unsure, say N.
 
+config SENSORS_SHT15
+        tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
+        depends on GENERIC_GPIO
+        help
+          If you say yes here you get support for the Sensiron SHT10, SHT11,
+          SHT15, SHT71, SHT75 humidity and temperature sensors.
+
+          This driver can also be built as a module.  If so, the module
+          will be called sht15.
+
 config SENSORS_SIS5595
         tristate "Silicon Integrated Systems Corp. SiS5595"
         depends on PCI
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 1d3757837b4f..0ae26984ba45 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -76,6 +76,7 @@ obj-$(CONFIG_SENSORS_MAX6650)	+= max6650.o
 obj-$(CONFIG_SENSORS_PC87360)   += pc87360.o
 obj-$(CONFIG_SENSORS_PC87427)   += pc87427.o
 obj-$(CONFIG_SENSORS_PCF8591)   += pcf8591.o
+obj-$(CONFIG_SENSORS_SHT15)     += sht15.o
 obj-$(CONFIG_SENSORS_SIS5595)   += sis5595.o
 obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
 obj-$(CONFIG_SENSORS_SMSC47M1)  += smsc47m1.o
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index 55d3dc565be6..abca7e9f953b 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -34,7 +34,6 @@
 #include <linux/wait.h>
 #include <linux/poll.h>
 #include <linux/freezer.h>
-#include <linux/version.h>
 #include <linux/uaccess.h>
 #include <linux/leds.h>
 #include <acpi/acpi_drivers.h>
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
new file mode 100644
index 000000000000..6cbdc2fea734
--- /dev/null
+++ b/drivers/hwmon/sht15.c
@@ -0,0 +1,692 @@
+/*
+ * sht15.c - support for the SHT15 Temperature and Humidity Sensor
+ *
+ * Copyright (c) 2009 Jonathan Cameron
+ *
+ * Copyright (c) 2007 Wouter Horre
+ *
+ * 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.
+ *
+ * Currently ignoring checksum on readings.
+ * Default resolution only (14bit temp, 12bit humidity)
+ * Ignoring battery status.
+ * Heater not enabled.
+ * Timings are all conservative.
+ *
+ * Data sheet available (1/2009) at
+ * http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
+ *
+ * Regulator supply name = vcc
+ */
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/err.h>
+#include <linux/sht15.h>
+#include <linux/regulator/consumer.h>
+#include <asm/atomic.h>
+
+#define SHT15_MEASURE_TEMP      3
+#define SHT15_MEASURE_RH        5
+
+#define SHT15_READING_NOTHING   0
+#define SHT15_READING_TEMP      1
+#define SHT15_READING_HUMID     2
+
+/* Min timings in nsecs */
+#define SHT15_TSCKL             100     /* clock low */
+#define SHT15_TSCKH             100     /* clock high */
+#define SHT15_TSU               150     /* data setup time */
+
+/**
+ * struct sht15_temppair - elements of voltage dependant temp calc
+ * @vdd:        supply voltage in microvolts
+ * @d1:         see data sheet
+ */
+struct sht15_temppair {
+        int vdd; /* microvolts */
+        int d1;
+};
+
+/* Table 9 from data sheet - relates temperature calculation
+ * to supply voltage.
+ */
+static const struct sht15_temppair temppoints[] = {
+        { 2500000, -39400 },
+        { 3000000, -39600 },
+        { 3500000, -39700 },
+        { 4000000, -39800 },
+        { 5000000, -40100 },
+};
+
+/**
+ * struct sht15_data - device instance specific data
+ * @pdata:      platform data (gpio's etc)
+ * @read_work:  bh of interrupt handler
+ * @wait_queue: wait queue for getting values from device
+ * @val_temp:   last temperature value read from device
+ * @val_humid:  last humidity value read from device
+ * @flag:       status flag used to identify what the last request was
+ * @valid:      are the current stored values valid (start condition)
+ * @last_updat: time of last update
+ * @read_lock:  mutex to ensure only one read in progress
+ *              at a time.
+ * @dev:        associate device structure
+ * @hwmon_dev:  device associated with hwmon subsystem
+ * @reg:        associated regulator (if specified)
+ * @nb:         notifier block to handle notifications of voltage changes
+ * @supply_uV:  local copy of supply voltage used to allow
+ *              use of regulator consumer if available
+ * @supply_uV_valid:   indicates that an updated value has not yet
+ *              been obtained from the regulator and so any calculations
+ *              based upon it will be invalid.
+ * @update_supply_work: work struct that is used to update the supply_uV
+ * @interrupt_handled:  flag used to indicate a hander has been scheduled
+ */
+struct sht15_data {
+        struct sht15_platform_data      *pdata;
+        struct work_struct              read_work;
+        wait_queue_head_t               wait_queue;
+        uint16_t                        val_temp;
+        uint16_t                        val_humid;
+        u8                              flag;
+        u8                              valid;
+        unsigned long                   last_updat;
+        struct mutex                    read_lock;
+        struct device                   *dev;
+        struct device                   *hwmon_dev;
+        struct regulator                *reg;
+        struct notifier_block           nb;
+        int                             supply_uV;
+        int                             supply_uV_valid;
+        struct work_struct              update_supply_work;
+        atomic_t                        interrupt_handled;
+};
+
+/**
+ * sht15_connection_reset() - reset the comms interface
+ * @data:       sht15 specific data
+ *
+ * This implements section 3.4 of the data sheet
+ */
+static void sht15_connection_reset(struct sht15_data *data)
+{
+        int i;
+        gpio_direction_output(data->pdata->gpio_data, 1);
+        ndelay(SHT15_TSCKL);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL);
+        for (i = 0; i < 9; ++i) {
+                gpio_set_value(data->pdata->gpio_sck, 1);
+                ndelay(SHT15_TSCKH);
+                gpio_set_value(data->pdata->gpio_sck, 0);
+                ndelay(SHT15_TSCKL);
+        }
+}
+/**
+ * sht15_send_bit() - send an individual bit to the device
+ * @data:       device state data
+ * @val:        value of bit to be sent
+ **/
+static inline void sht15_send_bit(struct sht15_data *data, int val)
+{
+
+        gpio_set_value(data->pdata->gpio_data, val);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 1);
+        ndelay(SHT15_TSCKH);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL); /* clock low time */
+}
+
+/**
+ * sht15_transmission_start() - specific sequence for new transmission
+ *
+ * @data:       device state data
+ * Timings for this are not documented on the data sheet, so very
+ * conservative ones used in implementation. This implements
+ * figure 12 on the data sheet.
+ **/
+static void sht15_transmission_start(struct sht15_data *data)
+{
+        /* ensure data is high and output */
+        gpio_direction_output(data->pdata->gpio_data, 1);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL);
+        gpio_set_value(data->pdata->gpio_sck, 1);
+        ndelay(SHT15_TSCKH);
+        gpio_set_value(data->pdata->gpio_data, 0);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL);
+        gpio_set_value(data->pdata->gpio_sck, 1);
+        ndelay(SHT15_TSCKH);
+        gpio_set_value(data->pdata->gpio_data, 1);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL);
+}
+/**
+ * sht15_send_byte() - send a single byte to the device
+ * @data:       device state
+ * @byte:       value to be sent
+ **/
+static void sht15_send_byte(struct sht15_data *data, u8 byte)
+{
+        int i;
+        for (i = 0; i < 8; i++) {
+                sht15_send_bit(data, !!(byte & 0x80));
+                byte <<= 1;
+        }
+}
+/**
+ * sht15_wait_for_response() - checks for ack from device
+ * @data:       device state
+ **/
+static int sht15_wait_for_response(struct sht15_data *data)
+{
+        gpio_direction_input(data->pdata->gpio_data);
+        gpio_set_value(data->pdata->gpio_sck, 1);
+        ndelay(SHT15_TSCKH);
+        if (gpio_get_value(data->pdata->gpio_data)) {
+                gpio_set_value(data->pdata->gpio_sck, 0);
+                dev_err(data->dev, "Command not acknowledged\n");
+                sht15_connection_reset(data);
+                return -EIO;
+        }
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL);
+        return 0;
+}
+
+/**
+ * sht15_send_cmd() - Sends a command to the device.
+ * @data:       device state
+ * @cmd:        command byte to be sent
+ *
+ * On entry, sck is output low, data is output pull high
+ * and the interrupt disabled.
+ **/
+static int sht15_send_cmd(struct sht15_data *data, u8 cmd)
+{
+        int ret = 0;
+        sht15_transmission_start(data);
+        sht15_send_byte(data, cmd);
+        ret = sht15_wait_for_response(data);
+        return ret;
+}
+/**
+ * sht15_update_single_val() - get a new value from device
+ * @data:               device instance specific data
+ * @command:            command sent to request value
+ * @timeout_msecs:      timeout after which comms are assumed
+ *                      to have failed are reset.
+ **/
+static inline int sht15_update_single_val(struct sht15_data *data,
+                                          int command,
+                                          int timeout_msecs)
+{
+        int ret;
+        ret = sht15_send_cmd(data, command);
+        if (ret)
+                return ret;
+
+        gpio_direction_input(data->pdata->gpio_data);
+        atomic_set(&data->interrupt_handled, 0);
+
+        enable_irq(gpio_to_irq(data->pdata->gpio_data));
+        if (gpio_get_value(data->pdata->gpio_data) == 0) {
+                disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+                /* Only relevant if the interrupt hasn't occured. */
+                if (!atomic_read(&data->interrupt_handled))
+                        schedule_work(&data->read_work);
+        }
+        ret = wait_event_timeout(data->wait_queue,
+                                 (data->flag == SHT15_READING_NOTHING),
+                                 msecs_to_jiffies(timeout_msecs));
+        if (ret == 0) {/* timeout occurred */
+                disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));;
+                sht15_connection_reset(data);
+                return -ETIME;
+        }
+        return 0;
+}
+
+/**
+ * sht15_update_vals() - get updated readings from device if too old
+ * @data:       device state
+ **/
+static int sht15_update_vals(struct sht15_data *data)
+{
+        int ret = 0;
+        int timeout = HZ;
+
+        mutex_lock(&data->read_lock);
+        if (time_after(jiffies, data->last_updat + timeout)
+            || !data->valid) {
+                data->flag = SHT15_READING_HUMID;
+                ret = sht15_update_single_val(data, SHT15_MEASURE_RH, 160);
+                if (ret)
+                        goto error_ret;
+                data->flag = SHT15_READING_TEMP;
+                ret = sht15_update_single_val(data, SHT15_MEASURE_TEMP, 400);
+                if (ret)
+                        goto error_ret;
+                data->valid = 1;
+                data->last_updat = jiffies;
+        }
+error_ret:
+        mutex_unlock(&data->read_lock);
+
+        return ret;
+}
+
+/**
+ * sht15_calc_temp() - convert the raw reading to a temperature
+ * @data:       device state
+ *
+ * As per section 4.3 of the data sheet.
+ **/
+static inline int sht15_calc_temp(struct sht15_data *data)
+{
+        int d1 = 0;
+        int i;
+
+        for (i = 1; i < ARRAY_SIZE(temppoints) - 1; i++)
+                /* Find pointer to interpolate */
+                if (data->supply_uV > temppoints[i - 1].vdd) {
+                        d1 = (data->supply_uV/1000 - temppoints[i - 1].vdd)
+                                * (temppoints[i].d1 - temppoints[i - 1].d1)
+                                / (temppoints[i].vdd - temppoints[i - 1].vdd)
+                                + temppoints[i - 1].d1;
+                        break;
+                }
+
+        return data->val_temp*10 + d1;
+}
+
+/**
+ * sht15_calc_humid() - using last temperature convert raw to humid
+ * @data:       device state
+ *
+ * This is the temperature compensated version as per section 4.2 of
+ * the data sheet.
+ **/
+static inline int sht15_calc_humid(struct sht15_data *data)
+{
+        int RHlinear; /* milli percent */
+        int temp = sht15_calc_temp(data);
+
+        const int c1 = -4;
+        const int c2 = 40500; /* x 10 ^ -6 */
+        const int c3 = 2800; /* x10 ^ -9 */
+
+        RHlinear = c1*1000
+                + c2 * data->val_humid/1000
+                + (data->val_humid * data->val_humid * c3)/1000000;
+        return (temp - 25000) * (10000 + 800 * data->val_humid)
+                / 1000000 + RHlinear;
+}
+
+static ssize_t sht15_show_temp(struct device *dev,
+                               struct device_attribute *attr,
+                               char *buf)
+{
+        int ret;
+        struct sht15_data *data = dev_get_drvdata(dev);
+
+        /* Technically no need to read humidity as well */
+        ret = sht15_update_vals(data);
+
+        return ret ? ret : sprintf(buf, "%d\n",
+                                   sht15_calc_temp(data));
+}
+
+static ssize_t sht15_show_humidity(struct device *dev,
+                                   struct device_attribute *attr,
+                                   char *buf)
+{
+        int ret;
+        struct sht15_data *data = dev_get_drvdata(dev);
+
+        ret = sht15_update_vals(data);
+
+        return ret ? ret : sprintf(buf, "%d\n", sht15_calc_humid(data));
+
+};
+static ssize_t show_name(struct device *dev,
+                         struct device_attribute *attr,
+                         char *buf)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        return sprintf(buf, "%s\n", pdev->name);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input,
+                          S_IRUGO, sht15_show_temp,
+                          NULL, 0);
+static SENSOR_DEVICE_ATTR(humidity1_input,
+                          S_IRUGO, sht15_show_humidity,
+                          NULL, 0);
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static struct attribute *sht15_attrs[] = {
+        &sensor_dev_attr_temp1_input.dev_attr.attr,
+        &sensor_dev_attr_humidity1_input.dev_attr.attr,
+        &dev_attr_name.attr,
+        NULL,
+};
+
+static const struct attribute_group sht15_attr_group = {
+        .attrs = sht15_attrs,
+};
+
+static irqreturn_t sht15_interrupt_fired(int irq, void *d)
+{
+        struct sht15_data *data = d;
+        /* First disable the interrupt */
+        disable_irq_nosync(irq);
+        atomic_inc(&data->interrupt_handled);
+        /* Then schedule a reading work struct */
+        if (data->flag != SHT15_READING_NOTHING)
+                schedule_work(&data->read_work);
+        return IRQ_HANDLED;
+}
+
+/* Each byte of data is acknowledged by pulling the data line
+ * low for one clock pulse.
+ */
+static void sht15_ack(struct sht15_data *data)
+{
+        gpio_direction_output(data->pdata->gpio_data, 0);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 1);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_data, 1);
+
+        gpio_direction_input(data->pdata->gpio_data);
+}
+/**
+ * sht15_end_transmission() - notify device of end of transmission
+ * @data:       device state
+ *
+ * This is basically a NAK. (single clock pulse, data high)
+ **/
+static void sht15_end_transmission(struct sht15_data *data)
+{
+        gpio_direction_output(data->pdata->gpio_data, 1);
+        ndelay(SHT15_TSU);
+        gpio_set_value(data->pdata->gpio_sck, 1);
+        ndelay(SHT15_TSCKH);
+        gpio_set_value(data->pdata->gpio_sck, 0);
+        ndelay(SHT15_TSCKL);
+}
+
+static void sht15_bh_read_data(struct work_struct *work_s)
+{
+        int i;
+        uint16_t val = 0;
+        struct sht15_data *data
+                = container_of(work_s, struct sht15_data,
+                               read_work);
+        /* Firstly, verify the line is low */
+        if (gpio_get_value(data->pdata->gpio_data)) {
+                /* If not, then start the interrupt again - care
+                   here as could have gone low in meantime so verify
+                   it hasn't!
+                */
+                atomic_set(&data->interrupt_handled, 0);
+                enable_irq(gpio_to_irq(data->pdata->gpio_data));
+                /* If still not occured or another handler has been scheduled */
+                if (gpio_get_value(data->pdata->gpio_data)
+                    || atomic_read(&data->interrupt_handled))
+                        return;
+        }
+        /* Read the data back from the device */
+        for (i = 0; i < 16; ++i) {
+                val <<= 1;
+                gpio_set_value(data->pdata->gpio_sck, 1);
+                ndelay(SHT15_TSCKH);
+                val |= !!gpio_get_value(data->pdata->gpio_data);
+                gpio_set_value(data->pdata->gpio_sck, 0);
+                ndelay(SHT15_TSCKL);
+                if (i == 7)
+                        sht15_ack(data);
+        }
+        /* Tell the device we are done */
+        sht15_end_transmission(data);
+
+        switch (data->flag) {
+        case SHT15_READING_TEMP:
+                data->val_temp = val;
+                break;
+        case SHT15_READING_HUMID:
+                data->val_humid = val;
+                break;
+        }
+
+        data->flag = SHT15_READING_NOTHING;
+        wake_up(&data->wait_queue);
+}
+
+static void sht15_update_voltage(struct work_struct *work_s)
+{
+        struct sht15_data *data
+                = container_of(work_s, struct sht15_data,
+                               update_supply_work);
+        data->supply_uV = regulator_get_voltage(data->reg);
+}
+
+/**
+ * sht15_invalidate_voltage() - mark supply voltage invalid when notified by reg
+ * @nb:         associated notification structure
+ * @event:      voltage regulator state change event code
+ * @ignored:    function parameter - ignored here
+ *
+ * Note that as the notification code holds the regulator lock, we have
+ * to schedule an update of the supply voltage rather than getting it directly.
+ **/
+static int sht15_invalidate_voltage(struct notifier_block *nb,
+                                unsigned long event,
+                                void *ignored)
+{
+        struct sht15_data *data = container_of(nb, struct sht15_data, nb);
+
+        if (event == REGULATOR_EVENT_VOLTAGE_CHANGE)
+                data->supply_uV_valid = false;
+        schedule_work(&data->update_supply_work);
+
+        return NOTIFY_OK;
+}
+
+static int __devinit sht15_probe(struct platform_device *pdev)
+{
+        int ret = 0;
+        struct sht15_data *data = kzalloc(sizeof(*data), GFP_KERNEL);
+
+        if (!data) {
+                ret = -ENOMEM;
+                dev_err(&pdev->dev, "kzalloc failed");
+                goto error_ret;
+        }
+
+        INIT_WORK(&data->read_work, sht15_bh_read_data);
+        INIT_WORK(&data->update_supply_work, sht15_update_voltage);
+        platform_set_drvdata(pdev, data);
+        mutex_init(&data->read_lock);
+        data->dev = &pdev->dev;
+        init_waitqueue_head(&data->wait_queue);
+
+        if (pdev->dev.platform_data == NULL) {
+                dev_err(&pdev->dev, "no platform data supplied");
+                goto err_free_data;
+        }
+        data->pdata = pdev->dev.platform_data;
+        data->supply_uV = data->pdata->supply_mv*1000;
+
+/* If a regulator is available, query what the supply voltage actually is!*/
+        data->reg = regulator_get(data->dev, "vcc");
+        if (!IS_ERR(data->reg)) {
+                data->supply_uV = regulator_get_voltage(data->reg);
+                regulator_enable(data->reg);
+                /* setup a notifier block to update this if another device
+                 *  causes the voltage to change */
+                data->nb.notifier_call = &sht15_invalidate_voltage;
+                ret = regulator_register_notifier(data->reg, &data->nb);
+        }
+/* Try requesting the GPIOs */
+        ret = gpio_request(data->pdata->gpio_sck, "SHT15 sck");
+        if (ret) {
+                dev_err(&pdev->dev, "gpio request failed");
+                goto err_free_data;
+        }
+        gpio_direction_output(data->pdata->gpio_sck, 0);
+        ret = gpio_request(data->pdata->gpio_data, "SHT15 data");
+        if (ret) {
+                dev_err(&pdev->dev, "gpio request failed");
+                goto err_release_gpio_sck;
+        }
+        ret = sysfs_create_group(&pdev->dev.kobj, &sht15_attr_group);
+        if (ret) {
+                dev_err(&pdev->dev, "sysfs create failed");
+                goto err_free_data;
+        }
+
+        ret = request_irq(gpio_to_irq(data->pdata->gpio_data),
+                          sht15_interrupt_fired,
+                          IRQF_TRIGGER_FALLING,
+                          "sht15 data",
+                          data);
+        if (ret) {
+                dev_err(&pdev->dev, "failed to get irq for data line");
+                goto err_release_gpio_data;
+        }
+        disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+        sht15_connection_reset(data);
+        sht15_send_cmd(data, 0x1E);
+
+        data->hwmon_dev = hwmon_device_register(data->dev);
+        if (IS_ERR(data->hwmon_dev)) {
+                ret = PTR_ERR(data->hwmon_dev);
+                goto err_release_gpio_data;
+        }
+        return 0;
+
+err_release_gpio_data:
+        gpio_free(data->pdata->gpio_data);
+err_release_gpio_sck:
+        gpio_free(data->pdata->gpio_sck);
+err_free_data:
+        kfree(data);
+error_ret:
+
+        return ret;
+}
+
+static int __devexit sht15_remove(struct platform_device *pdev)
+{
+        struct sht15_data *data = platform_get_drvdata(pdev);
+
+        /* Make sure any reads from the device are done and
+         * prevent new ones beginnning */
+        mutex_lock(&data->read_lock);
+        hwmon_device_unregister(data->hwmon_dev);
+        sysfs_remove_group(&pdev->dev.kobj, &sht15_attr_group);
+        if (!IS_ERR(data->reg)) {
+                regulator_unregister_notifier(data->reg, &data->nb);
+                regulator_disable(data->reg);
+                regulator_put(data->reg);
+        }
+
+        free_irq(gpio_to_irq(data->pdata->gpio_data), data);
+        gpio_free(data->pdata->gpio_data);
+        gpio_free(data->pdata->gpio_sck);
+        mutex_unlock(&data->read_lock);
+        kfree(data);
+        return 0;
+}
+
+
+static struct platform_driver sht_drivers[] = {
+        {
+                .driver = {
+                        .name = "sht10",
+                        .owner = THIS_MODULE,
+                },
+                .probe = sht15_probe,
+                .remove = sht15_remove,
+        }, {
+                .driver = {
+                        .name = "sht11",
+                        .owner = THIS_MODULE,
+                },
+                .probe = sht15_probe,
+                .remove = sht15_remove,
+        }, {
+                .driver = {
+                        .name = "sht15",
+                        .owner = THIS_MODULE,
+                },
+                .probe = sht15_probe,
+                .remove = sht15_remove,
+        }, {
+                .driver = {
+                        .name = "sht71",
+                        .owner = THIS_MODULE,
+                },
+                .probe = sht15_probe,
+                .remove = sht15_remove,
+        }, {
+                .driver = {
+                        .name = "sht75",
+                        .owner = THIS_MODULE,
+                },
+                .probe = sht15_probe,
+                .remove = sht15_remove,
+        },
+};
+
+
+static int __init sht15_init(void)
+{
+        int ret;
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(sht_drivers); i++) {
+                ret = platform_driver_register(&sht_drivers[i]);
+                if (ret)
+                        goto error_unreg;
+        }
+
+        return 0;
+
+error_unreg:
+        while (--i >= 0)
+                platform_driver_unregister(&sht_drivers[i]);
+
+        return ret;
+}
+module_init(sht15_init);
+
+static void __exit sht15_exit(void)
+{
+        int i;
+        for (i = ARRAY_SIZE(sht_drivers) - 1; i >= 0; i--)
+                platform_driver_unregister(&sht_drivers[i]);
+}
+module_exit(sht15_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index f68e5f8e23ee..6318f7ddc1d4 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -190,7 +190,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
         int completed = 1;
         unsigned long timeout = jiffies + i2c_adap->timeout;
 
-        while (pca_status(adap) != 0xf8) {
+        while ((state = pca_status(adap)) != 0xf8) {
                 if (time_before(jiffies, timeout)) {
                         msleep(10);
                 } else {
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 94eae5c3cbc7..a48c8aee0218 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -604,12 +604,14 @@ comment "Graphics adapter I2C/DDC channel drivers"
         depends on PCI
 
 config I2C_VOODOO3
-        tristate "Voodoo 3"
+        tristate "Voodoo 3 (DEPRECATED)"
         depends on PCI
         select I2C_ALGOBIT
         help
           If you say yes to this option, support will be included for the
-          Voodoo 3 I2C interface.
+          Voodoo 3 I2C interface. This driver is deprecated and you should
+          use the tdfxfb driver instead, which additionally provides
+          framebuffer support.
 
           This driver can also be built as a module.  If so, the module
           will be called i2c-voodoo3.
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index b6f3a0de6ca2..85e2e919d1cd 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -716,8 +716,7 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
 
         /* new style driver methods can't mix with legacy ones */
         if (is_newstyle_driver(driver)) {
-                if (driver->attach_adapter || driver->detach_adapter
-                                || driver->detach_client) {
+                if (driver->detach_adapter || driver->detach_client) {
                         printk(KERN_WARNING
                                         "i2c-core: driver [%s] is confused\n",
                                         driver->driver.name);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index ec3db3ade118..d44065d2e662 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -132,6 +132,11 @@ static void input_start_autorepeat(struct input_dev *dev, int code)
         }
 }
 
+static void input_stop_autorepeat(struct input_dev *dev)
+{
+        del_timer(&dev->timer);
+}
+
 #define INPUT_IGNORE_EVENT      0
 #define INPUT_PASS_TO_HANDLERS  1
 #define INPUT_PASS_TO_DEVICE    2
@@ -167,6 +172,8 @@ static void input_handle_event(struct input_dev *dev,
                                 __change_bit(code, dev->key);
                                 if (value)
                                         input_start_autorepeat(dev, code);
+                                else
+                                        input_stop_autorepeat(dev);
                         }
 
                         disposition = INPUT_PASS_TO_HANDLERS;
@@ -737,11 +744,11 @@ static inline void input_wakeup_procfs_readers(void)
 
 static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait)
 {
-        int state = input_devices_state;
-
         poll_wait(file, &input_devices_poll_wait, wait);
-        if (state != input_devices_state)
+        if (file->f_version != input_devices_state) {
+                file->f_version = input_devices_state;
                 return POLLIN | POLLRDNORM;
+        }
 
         return 0;
 }
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 45470f18d7e9..f999dc60c3b8 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -229,7 +229,8 @@ struct atkbd {
 /*
  * System-specific ketymap fixup routine
  */
-static void (*atkbd_platform_fixup)(struct atkbd *);
+static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
+static void *atkbd_platform_fixup_data;
 
 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
                                 ssize_t (*handler)(struct atkbd *, char *));
@@ -834,87 +835,64 @@ static void atkbd_disconnect(struct serio *serio)
 }
 
 /*
- * Most special keys (Fn+F?) on Dell laptops do not generate release
- * events so we have to do it ourselves.
+ * generate release events for the keycodes given in data
  */
-static void atkbd_dell_laptop_keymap_fixup(struct atkbd *atkbd)
+static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
+                                                const void *data)
 {
-        static const unsigned int forced_release_keys[] = {
-                0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93,
-        };
-        int i;
+        const unsigned int *keys = data;
+        unsigned int i;
 
         if (atkbd->set == 2)
-                for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-                        __set_bit(forced_release_keys[i],
-                                  atkbd->force_release_mask);
+                for (i = 0; keys[i] != -1U; i++)
+                        __set_bit(keys[i], atkbd->force_release_mask);
 }
 
 /*
+ * Most special keys (Fn+F?) on Dell laptops do not generate release
+ * events so we have to do it ourselves.
+ */
+static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
+        0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
+};
+
+/*
  * Perform fixup for HP system that doesn't generate release
  * for its video switch
  */
-static void atkbd_hp_keymap_fixup(struct atkbd *atkbd)
-{
-        static const unsigned int forced_release_keys[] = {
-                0x94,
-        };
-        int i;
-
-        if (atkbd->set == 2)
-                for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-                        __set_bit(forced_release_keys[i],
-                                        atkbd->force_release_mask);
-}
+static unsigned int atkbd_hp_forced_release_keys[] = {
+        0x94, -1U
+};
 
 /*
  * Inventec system with broken key release on volume keys
  */
-static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
-{
-        const unsigned int forced_release_keys[] = {
-                0xae, 0xb0,
-        };
-        int i;
-
-        if (atkbd->set == 2)
-                for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-                        __set_bit(forced_release_keys[i],
-                                  atkbd->force_release_mask);
-}
+static unsigned int atkbd_inventec_forced_release_keys[] = {
+        0xae, 0xb0, -1U
+};
 
 /*
  * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
  * for its volume buttons
  */
-static void atkbd_hp_zv6100_keymap_fixup(struct atkbd *atkbd)
-{
-        const unsigned int forced_release_keys[] = {
-                0xae, 0xb0,
-        };
-        int i;
-
-        if (atkbd->set == 2)
-                for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-                        __set_bit(forced_release_keys[i],
-                                        atkbd->force_release_mask);
-}
+static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
+        0xae, 0xb0, -1U
+};
 
 /*
  * Samsung NC10 with Fn+F? key release not working
  */
-static void atkbd_samsung_keymap_fixup(struct atkbd *atkbd)
-{
-        const unsigned int forced_release_keys[] = {
-                0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9,
-        };
-        int i;
+static unsigned int atkbd_samsung_forced_release_keys[] = {
+        0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
+};
 
-        if (atkbd->set == 2)
-                for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
-                        __set_bit(forced_release_keys[i],
-                                  atkbd->force_release_mask);
-}
+/*
+ * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
+ * do not generate release events so we have to do it ourselves.
+ */
+static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
+        0xb0, 0xae, -1U
+};
 
 /*
  * atkbd_set_keycode_table() initializes keyboard's keycode table
@@ -967,7 +945,7 @@ static void atkbd_set_keycode_table(struct atkbd *atkbd)
  * Perform additional fixups
  */
         if (atkbd_platform_fixup)
-                atkbd_platform_fixup(atkbd);
+                atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
 }
 
 /*
@@ -1492,9 +1470,11 @@ static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
         return sprintf(buf, "%lu\n", atkbd->err_count);
 }
 
-static int __init atkbd_setup_fixup(const struct dmi_system_id *id)
+static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
 {
-        atkbd_platform_fixup = id->driver_data;
+        atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
+        atkbd_platform_fixup_data = id->driver_data;
+
         return 0;
 }
 
@@ -1505,8 +1485,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
                 },
-                .callback = atkbd_setup_fixup,
-                .driver_data = atkbd_dell_laptop_keymap_fixup,
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_dell_laptop_forced_release_keys,
         },
         {
                 .ident = "Dell Laptop",
@@ -1514,8 +1494,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
                 },
-                .callback = atkbd_setup_fixup,
-                .driver_data = atkbd_dell_laptop_keymap_fixup,
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_dell_laptop_forced_release_keys,
         },
         {
                 .ident = "HP 2133",
@@ -1523,8 +1503,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                         DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
                 },
-                .callback = atkbd_setup_fixup,
-                .driver_data = atkbd_hp_keymap_fixup,
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_hp_forced_release_keys,
         },
         {
                 .ident = "HP Pavilion ZV6100",
@@ -1532,8 +1512,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
                 },
-                .callback = atkbd_setup_fixup,
-                .driver_data = atkbd_hp_zv6100_keymap_fixup,
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_hp_zv6100_forced_release_keys,
         },
         {
                 .ident = "Inventec Symphony",
@@ -1541,8 +1521,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                         DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
                         DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
                 },
-                .callback = atkbd_setup_fixup,
-                .driver_data = atkbd_inventec_keymap_fixup,
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_inventec_forced_release_keys,
         },
         {
                 .ident = "Samsung NC10",
@@ -1550,8 +1530,17 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
                         DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
                         DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
                 },
-                .callback = atkbd_setup_fixup,
-                .driver_data = atkbd_samsung_keymap_fixup,
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_samsung_forced_release_keys,
+        },
+        {
+                .ident = "Fujitsu Amilo PA 1510",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
+                },
+                .callback = atkbd_setup_forced_release,
+                .driver_data = atkbd_amilo_pa1510_forced_release_keys,
         },
         { }
 };
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index ee855c5202e8..e94b7d735aca 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -211,8 +211,8 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev)
 
         if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
             !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
-                printk(KERN_ERR DRV_NAME
-                        ": Invalid Debounce/Columdrive Time from pdata\n");
+                printk(KERN_WARNING DRV_NAME
+                        ": Invalid Debounce/Columndrive Time in platform data\n");
                 bfin_write_KPAD_MSEL(0xFF0);    /* Default MSEL */
         } else {
                 bfin_write_KPAD_MSEL(
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index aacf71f3cd44..e9d639ec283d 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -198,45 +198,28 @@ static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
 }
 
 
-/* initialise HIL */
-static int __init
-hil_keyb_init(void)
+/* initialize HIL */
+static int __devinit hil_keyb_init(void)
 {
         unsigned char c;
         unsigned int i, kbid;
         wait_queue_head_t hil_wait;
         int err;
 
-        if (hil_dev.dev) {
+        if (hil_dev.dev)
                 return -ENODEV; /* already initialized */
-        }
 
+        init_waitqueue_head(&hil_wait);
         spin_lock_init(&hil_dev.lock);
+
         hil_dev.dev = input_allocate_device();
         if (!hil_dev.dev)
                 return -ENOMEM;
 
-#if defined(CONFIG_HP300)
-        if (!MACH_IS_HP300) {
-                err = -ENODEV;
-                goto err1;
-        }
-        if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
-                printk(KERN_ERR "HIL: hardware register was not found\n");
-                err = -ENODEV;
-                goto err1;
-        }
-        if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
-                printk(KERN_ERR "HIL: IOPORT region already used\n");
-                err = -EIO;
-                goto err1;
-        }
-#endif
-
         err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
         if (err) {
                 printk(KERN_ERR "HIL: Can't get IRQ\n");
-                goto err2;
+                goto err1;
         }
 
         /* Turn on interrupts */
@@ -246,11 +229,9 @@ hil_keyb_init(void)
         hil_dev.valid = 0;      /* clear any pending data */
         hil_do(HIL_READKBDSADR, NULL, 0);
 
-        init_waitqueue_head(&hil_wait);
-        wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
-        if (!hil_dev.valid) {
+        wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
+        if (!hil_dev.valid)
                 printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
-        }
 
         c = hil_dev.c;
         hil_dev.valid = 0;
@@ -268,7 +249,7 @@ hil_keyb_init(void)
 
         for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
                 if (hphilkeyb_keycode[i] != KEY_RESERVED)
-                        set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
+                        __set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
 
         hil_dev.dev->evbit[0]   = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
         hil_dev.dev->ledbit[0]  = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
@@ -287,34 +268,45 @@ hil_keyb_init(void)
         err = input_register_device(hil_dev.dev);
         if (err) {
                 printk(KERN_ERR "HIL: Can't register device\n");
-                goto err3;
+                goto err2;
         }
+
         printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
                hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
 
         return 0;
 
-err3:
+err2:
         hil_do(HIL_INTOFF, NULL, 0);
-        disable_irq(HIL_IRQ);
         free_irq(HIL_IRQ, hil_dev.dev_id);
-err2:
-#if defined(CONFIG_HP300)
-        release_region(HILBASE + HIL_DATA, 2);
 err1:
-#endif
         input_free_device(hil_dev.dev);
         hil_dev.dev = NULL;
         return err;
 }
 
+static void __devexit hil_keyb_exit(void)
+{
+        if (HIL_IRQ)
+                free_irq(HIL_IRQ, hil_dev.dev_id);
+
+        /* Turn off interrupts */
+        hil_do(HIL_INTOFF, NULL, 0);
+
+        input_unregister_device(hil_dev.dev);
+        hil_dev.dev = NULL;
+}
 
 #if defined(CONFIG_PARISC)
-static int __init
-hil_init_chip(struct parisc_device *dev)
+static int __devinit hil_probe_chip(struct parisc_device *dev)
 {
+        /* Only allow one HIL keyboard */
+        if (hil_dev.dev)
+                return -ENODEV;
+
         if (!dev->irq) {
-                printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
+                printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
+                        (void *)dev->hpa.start);
                 return -ENODEV;
         }
 
@@ -327,51 +319,79 @@ hil_init_chip(struct parisc_device *dev)
         return hil_keyb_init();
 }
 
+static int __devexit hil_remove_chip(struct parisc_device *dev)
+{
+        hil_keyb_exit();
+
+        return 0;
+}
+
 static struct parisc_device_id hil_tbl[] = {
         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
         { 0, }
 };
 
+#if 0
+/* Disabled to avoid conflicts with the HP SDC HIL drivers */
 MODULE_DEVICE_TABLE(parisc, hil_tbl);
+#endif
 
 static struct parisc_driver hil_driver = {
-        .name =         "hil",
-        .id_table =     hil_tbl,
-        .probe =        hil_init_chip,
+        .name           = "hil",
+        .id_table       = hil_tbl,
+        .probe          = hil_probe_chip,
+        .remove         = __devexit_p(hil_remove_chip),
 };
-#endif /* CONFIG_PARISC */
-
 
 static int __init hil_init(void)
 {
-#if defined(CONFIG_PARISC)
         return register_parisc_driver(&hil_driver);
-#else
-        return hil_keyb_init();
-#endif
 }
 
-
 static void __exit hil_exit(void)
 {
-        if (HIL_IRQ) {
-                disable_irq(HIL_IRQ);
-                free_irq(HIL_IRQ, hil_dev.dev_id);
+        unregister_parisc_driver(&hil_driver);
+}
+
+#else /* !CONFIG_PARISC */
+
+static int __init hil_init(void)
+{
+        int error;
+
+        /* Only allow one HIL keyboard */
+        if (hil_dev.dev)
+                return -EBUSY;
+
+        if (!MACH_IS_HP300)
+                return -ENODEV;
+
+        if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
+                printk(KERN_ERR "HIL: hardware register was not found\n");
+                return -ENODEV;
         }
 
-        /* Turn off interrupts */
-        hil_do(HIL_INTOFF, NULL, 0);
+        if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
+                printk(KERN_ERR "HIL: IOPORT region already used\n");
+                return -EIO;
+        }
 
-        input_unregister_device(hil_dev.dev);
+        error = hil_keyb_init();
+        if (error) {
+                release_region(HILBASE + HIL_DATA, 2);
+                return error;
+        }
 
-        hil_dev.dev = NULL;
+        return 0;
+}
 
-#if defined(CONFIG_PARISC)
-        unregister_parisc_driver(&hil_driver);
-#else
-        release_region(HILBASE+HIL_DATA, 2);
-#endif
+static void __exit hil_exit(void)
+{
+        hil_keyb_exit();
+        release_region(HILBASE + HIL_DATA, 2);
 }
 
+#endif /* CONFIG_PARISC */
+
 module_init(hil_init);
 module_exit(hil_exit);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 67e5553f699a..203abac1e23e 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -227,4 +227,27 @@ config INPUT_PCF50633_PMU
          Say Y to include support for delivering  PMU events via  input
          layer on NXP PCF50633.
 
+config INPUT_GPIO_ROTARY_ENCODER
+        tristate "Rotary encoders connected to GPIO pins"
+        depends on GPIOLIB && GENERIC_GPIO
+        help
+          Say Y here to add support for rotary encoders connected to GPIO lines.
+          Check file:Documentation/incput/rotary_encoder.txt for more
+          information.
+
+          To compile this driver as a module, choose M here: the
+          module will be called rotary_encoder.
+
+config INPUT_RB532_BUTTON
+        tristate "Mikrotik Routerboard 532 button interface"
+        depends on MIKROTIK_RB532
+        depends on GPIOLIB && GENERIC_GPIO
+        select INPUT_POLLDEV
+        help
+          Say Y here if you want support for the S1 button built into
+          Mikrotik's Routerboard 532.
+
+          To compile this driver as a module, choose M here: the
+          module will be called rb532_button.
+
 endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index bb62e6efacf3..eb3f407baedf 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -4,21 +4,23 @@
 
 # Each configuration option enables a list of files.
 
-obj-$(CONFIG_INPUT_SPARCSPKR)           += sparcspkr.o
-obj-$(CONFIG_INPUT_PCSPKR)              += pcspkr.o
-obj-$(CONFIG_INPUT_M68K_BEEP)           += m68kspkr.o
-obj-$(CONFIG_INPUT_IXP4XX_BEEPER)       += ixp4xx-beeper.o
-obj-$(CONFIG_INPUT_COBALT_BTNS)         += cobalt_btns.o
-obj-$(CONFIG_INPUT_WISTRON_BTNS)        += wistron_btns.o
-obj-$(CONFIG_INPUT_ATLAS_BTNS)          += atlas_btns.o
+obj-$(CONFIG_INPUT_APANEL)              += apanel.o
 obj-$(CONFIG_INPUT_ATI_REMOTE)          += ati_remote.o
 obj-$(CONFIG_INPUT_ATI_REMOTE2)         += ati_remote2.o
-obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)      += keyspan_remote.o
-obj-$(CONFIG_INPUT_POWERMATE)           += powermate.o
-obj-$(CONFIG_INPUT_YEALINK)             += yealink.o
+obj-$(CONFIG_INPUT_ATLAS_BTNS)          += atlas_btns.o
 obj-$(CONFIG_INPUT_CM109)               += cm109.o
+obj-$(CONFIG_INPUT_COBALT_BTNS)         += cobalt_btns.o
 obj-$(CONFIG_HP_SDC_RTC)                += hp_sdc_rtc.o
-obj-$(CONFIG_INPUT_UINPUT)              += uinput.o
-obj-$(CONFIG_INPUT_APANEL)              += apanel.o
-obj-$(CONFIG_INPUT_SGI_BTNS)            += sgi_btns.o
+obj-$(CONFIG_INPUT_IXP4XX_BEEPER)       += ixp4xx-beeper.o
+obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)      += keyspan_remote.o
+obj-$(CONFIG_INPUT_M68K_BEEP)           += m68kspkr.o
 obj-$(CONFIG_INPUT_PCF50633_PMU)        += pcf50633-input.o
+obj-$(CONFIG_INPUT_PCSPKR)              += pcspkr.o
+obj-$(CONFIG_INPUT_POWERMATE)           += powermate.o
+obj-$(CONFIG_INPUT_RB532_BUTTON)        += rb532_button.o
+obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
+obj-$(CONFIG_INPUT_SGI_BTNS)            += sgi_btns.o
+obj-$(CONFIG_INPUT_SPARCSPKR)           += sparcspkr.o
+obj-$(CONFIG_INPUT_UINPUT)              += uinput.o
+obj-$(CONFIG_INPUT_WISTRON_BTNS)        += wistron_btns.o
+obj-$(CONFIG_INPUT_YEALINK)             += yealink.o
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 3c9988dc0e9f..922c05141585 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -31,12 +31,73 @@ MODULE_LICENSE("GPL");
  * newly configured "channel".
  */
 
-static unsigned int channel_mask = 0xFFFF;
-module_param(channel_mask, uint, 0644);
+enum {
+        ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
+        ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
+};
+
+static int ati_remote2_set_mask(const char *val,
+                                struct kernel_param *kp, unsigned int max)
+{
+        unsigned long mask;
+        int ret;
+
+        if (!val)
+                return -EINVAL;
+
+        ret = strict_strtoul(val, 0, &mask);
+        if (ret)
+                return ret;
+
+        if (mask & ~max)
+                return -EINVAL;
+
+        *(unsigned int *)kp->arg = mask;
+
+        return 0;
+}
+
+static int ati_remote2_set_channel_mask(const char *val,
+                                        struct kernel_param *kp)
+{
+        pr_debug("%s()\n", __func__);
+
+        return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
+}
+
+static int ati_remote2_get_channel_mask(char *buffer, struct kernel_param *kp)
+{
+        pr_debug("%s()\n", __func__);
+
+        return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
+}
+
+static int ati_remote2_set_mode_mask(const char *val, struct kernel_param *kp)
+{
+        pr_debug("%s()\n", __func__);
+
+        return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
+}
+
+static int ati_remote2_get_mode_mask(char *buffer, struct kernel_param *kp)
+{
+        pr_debug("%s()\n", __func__);
+
+        return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
+}
+
+static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
+#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
+#define param_set_channel_mask ati_remote2_set_channel_mask
+#define param_get_channel_mask ati_remote2_get_channel_mask
+module_param(channel_mask, channel_mask, 0644);
 MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
 
-static unsigned int mode_mask = 0x1F;
-module_param(mode_mask, uint, 0644);
+static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
+#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
+#define param_set_mode_mask ati_remote2_set_mode_mask
+#define param_get_mode_mask ati_remote2_get_mode_mask
+module_param(mode_mask, mode_mask, 0644);
 MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
 
 static struct usb_device_id ati_remote2_id_table[] = {
@@ -133,12 +194,18 @@ struct ati_remote2 {
         u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
 
         unsigned int flags;
+
+        unsigned int channel_mask;
+        unsigned int mode_mask;
 };
 
 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
 static void ati_remote2_disconnect(struct usb_interface *interface);
 static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
 static int ati_remote2_resume(struct usb_interface *interface);
+static int ati_remote2_reset_resume(struct usb_interface *interface);
+static int ati_remote2_pre_reset(struct usb_interface *interface);
+static int ati_remote2_post_reset(struct usb_interface *interface);
 
 static struct usb_driver ati_remote2_driver = {
         .name       = "ati_remote2",
@@ -147,6 +214,9 @@ static struct usb_driver ati_remote2_driver = {
         .id_table   = ati_remote2_id_table,
         .suspend    = ati_remote2_suspend,
         .resume     = ati_remote2_resume,
+        .reset_resume = ati_remote2_reset_resume,
+        .pre_reset  = ati_remote2_pre_reset,
+        .post_reset = ati_remote2_post_reset,
         .supports_autosuspend = 1,
 };
 
@@ -238,7 +308,7 @@ static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
 
         channel = data[0] >> 4;
 
-        if (!((1 << channel) & channel_mask))
+        if (!((1 << channel) & ar2->channel_mask))
                 return;
 
         mode = data[0] & 0x0F;
@@ -250,7 +320,7 @@ static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
                 return;
         }
 
-        if (!((1 << mode) & mode_mask))
+        if (!((1 << mode) & ar2->mode_mask))
                 return;
 
         input_event(idev, EV_REL, REL_X, (s8) data[1]);
@@ -277,7 +347,7 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
 
         channel = data[0] >> 4;
 
-        if (!((1 << channel) & channel_mask))
+        if (!((1 << channel) & ar2->channel_mask))
                 return;
 
         mode = data[0] & 0x0F;
@@ -305,7 +375,7 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
                         ar2->mode = mode;
         }
 
-        if (!((1 << mode) & mode_mask))
+        if (!((1 << mode) & ar2->mode_mask))
                 return;
 
         index = ati_remote2_lookup(hw_code);
@@ -410,7 +480,7 @@ static int ati_remote2_getkeycode(struct input_dev *idev,
         int index, mode;
 
         mode = scancode >> 8;
-        if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+        if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
                 return -EINVAL;
 
         index = ati_remote2_lookup(scancode & 0xFF);
@@ -427,7 +497,7 @@ static int ati_remote2_setkeycode(struct input_dev *idev, int scancode, int keyc
         int index, mode, old_keycode;
 
         mode = scancode >> 8;
-        if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+        if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
                 return -EINVAL;
 
         index = ati_remote2_lookup(scancode & 0xFF);
@@ -550,7 +620,7 @@ static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
         }
 }
 
-static int ati_remote2_setup(struct ati_remote2 *ar2)
+static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
 {
         int r, i, channel;
 
@@ -565,8 +635,8 @@ static int ati_remote2_setup(struct ati_remote2 *ar2)
 
         channel = 0;
         for (i = 0; i < 16; i++) {
-                if ((1 << i) & channel_mask) {
-                        if (!(~(1 << i) & 0xFFFF & channel_mask))
+                if ((1 << i) & ch_mask) {
+                        if (!(~(1 << i) & ch_mask))
                                 channel = i + 1;
                         break;
                 }
@@ -585,6 +655,99 @@ static int ati_remote2_setup(struct ati_remote2 *ar2)
         return 0;
 }
 
+static ssize_t ati_remote2_show_channel_mask(struct device *dev,
+                                             struct device_attribute *attr,
+                                             char *buf)
+{
+        struct usb_device *udev = to_usb_device(dev);
+        struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+        struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+        return sprintf(buf, "0x%04x\n", ar2->channel_mask);
+}
+
+static ssize_t ati_remote2_store_channel_mask(struct device *dev,
+                                              struct device_attribute *attr,
+                                              const char *buf, size_t count)
+{
+        struct usb_device *udev = to_usb_device(dev);
+        struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+        struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+        unsigned long mask;
+        int r;
+
+        if (strict_strtoul(buf, 0, &mask))
+                return -EINVAL;
+
+        if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
+                return -EINVAL;
+
+        r = usb_autopm_get_interface(ar2->intf[0]);
+        if (r) {
+                dev_err(&ar2->intf[0]->dev,
+                        "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+                return r;
+        }
+
+        mutex_lock(&ati_remote2_mutex);
+
+        if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
+                ar2->channel_mask = mask;
+
+        mutex_unlock(&ati_remote2_mutex);
+
+        usb_autopm_put_interface(ar2->intf[0]);
+
+        return count;
+}
+
+static ssize_t ati_remote2_show_mode_mask(struct device *dev,
+                                          struct device_attribute *attr,
+                                          char *buf)
+{
+        struct usb_device *udev = to_usb_device(dev);
+        struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+        struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+        return sprintf(buf, "0x%02x\n", ar2->mode_mask);
+}
+
+static ssize_t ati_remote2_store_mode_mask(struct device *dev,
+                                           struct device_attribute *attr,
+                                           const char *buf, size_t count)
+{
+        struct usb_device *udev = to_usb_device(dev);
+        struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+        struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+        unsigned long mask;
+
+        if (strict_strtoul(buf, 0, &mask))
+                return -EINVAL;
+
+        if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
+                return -EINVAL;
+
+        ar2->mode_mask = mask;
+
+        return count;
+}
+
+static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
+                   ati_remote2_store_channel_mask);
+
+static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
+                   ati_remote2_store_mode_mask);
+
+static struct attribute *ati_remote2_attrs[] = {
+        &dev_attr_channel_mask.attr,
+        &dev_attr_mode_mask.attr,
+        NULL,
+};
+
+static struct attribute_group ati_remote2_attr_group = {
+        .attrs = ati_remote2_attrs,
+};
+
 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
 {
         struct usb_device *udev = interface_to_usbdev(interface);
@@ -615,7 +778,10 @@ static int ati_remote2_probe(struct usb_interface *interface, const struct usb_d
         if (r)
                 goto fail2;
 
-        r = ati_remote2_setup(ar2);
+        ar2->channel_mask = channel_mask;
+        ar2->mode_mask = mode_mask;
+
+        r = ati_remote2_setup(ar2, ar2->channel_mask);
         if (r)
                 goto fail2;
 
@@ -624,19 +790,24 @@ static int ati_remote2_probe(struct usb_interface *interface, const struct usb_d
 
         strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
 
-        r = ati_remote2_input_init(ar2);
+        r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
         if (r)
                 goto fail2;
 
+        r = ati_remote2_input_init(ar2);
+        if (r)
+                goto fail3;
+
         usb_set_intfdata(interface, ar2);
 
         interface->needs_remote_wakeup = 1;
 
         return 0;
 
+ fail3:
+        sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
  fail2:
         ati_remote2_urb_cleanup(ar2);
-
         usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
  fail1:
         kfree(ar2);
@@ -657,6 +828,8 @@ static void ati_remote2_disconnect(struct usb_interface *interface)
 
         input_unregister_device(ar2->idev);
 
+        sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
+
         ati_remote2_urb_cleanup(ar2);
 
         usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
@@ -715,6 +888,78 @@ static int ati_remote2_resume(struct usb_interface *interface)
         return r;
 }
 
+static int ati_remote2_reset_resume(struct usb_interface *interface)
+{
+        struct ati_remote2 *ar2;
+        struct usb_host_interface *alt = interface->cur_altsetting;
+        int r = 0;
+
+        if (alt->desc.bInterfaceNumber)
+                return 0;
+
+        ar2 = usb_get_intfdata(interface);
+
+        dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+        mutex_lock(&ati_remote2_mutex);
+
+        r = ati_remote2_setup(ar2, ar2->channel_mask);
+        if (r)
+                goto out;
+
+        if (ar2->flags & ATI_REMOTE2_OPENED)
+                r = ati_remote2_submit_urbs(ar2);
+
+        if (!r)
+                ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ out:
+        mutex_unlock(&ati_remote2_mutex);
+
+        return r;
+}
+
+static int ati_remote2_pre_reset(struct usb_interface *interface)
+{
+        struct ati_remote2 *ar2;
+        struct usb_host_interface *alt = interface->cur_altsetting;
+
+        if (alt->desc.bInterfaceNumber)
+                return 0;
+
+        ar2 = usb_get_intfdata(interface);
+
+        dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+        mutex_lock(&ati_remote2_mutex);
+
+        if (ar2->flags == ATI_REMOTE2_OPENED)
+                ati_remote2_kill_urbs(ar2);
+
+        return 0;
+}
+
+static int ati_remote2_post_reset(struct usb_interface *interface)
+{
+        struct ati_remote2 *ar2;
+        struct usb_host_interface *alt = interface->cur_altsetting;
+        int r = 0;
+
+        if (alt->desc.bInterfaceNumber)
+                return 0;
+
+        ar2 = usb_get_intfdata(interface);
+
+        dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+        if (ar2->flags == ATI_REMOTE2_OPENED)
+                r = ati_remote2_submit_urbs(ar2);
+
+        mutex_unlock(&ati_remote2_mutex);
+
+        return r;
+}
+
 static int __init ati_remote2_init(void)
 {
         int r;
diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
new file mode 100644
index 000000000000..e2c7f622a0b5
--- /dev/null
+++ b/drivers/input/misc/rb532_button.c
@@ -0,0 +1,120 @@
+/*
+ * Support for the S1 button on Routerboard 532
+ *
+ * Copyright (C) 2009  Phil Sutter <n0-1@freewrt.org>
+ */
+
+#include <linux/input-polldev.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-rc32434/gpio.h>
+#include <asm/mach-rc32434/rb.h>
+
+#define DRV_NAME "rb532-button"
+
+#define RB532_BTN_RATE 100 /* msec */
+#define RB532_BTN_KSYM BTN_0
+
+/* The S1 button state is provided by GPIO pin 1. But as this
+ * pin is also used for uart input as alternate function, the
+ * operational modes must be switched first:
+ * 1) disable uart using set_latch_u5()
+ * 2) turn off alternate function implicitly through
+ *    gpio_direction_input()
+ * 3) read the GPIO's current value
+ * 4) undo step 2 by enabling alternate function (in this
+ *    mode the GPIO direction is fixed, so no change needed)
+ * 5) turn on uart again
+ * The GPIO value occurs to be inverted, so pin high means
+ * button is not pressed.
+ */
+static bool rb532_button_pressed(void)
+{
+        int val;
+
+        set_latch_u5(0, LO_FOFF);
+        gpio_direction_input(GPIO_BTN_S1);
+
+        val = gpio_get_value(GPIO_BTN_S1);
+
+        rb532_gpio_set_func(GPIO_BTN_S1);
+        set_latch_u5(LO_FOFF, 0);
+
+        return !val;
+}
+
+static void rb532_button_poll(struct input_polled_dev *poll_dev)
+{
+        input_report_key(poll_dev->input, RB532_BTN_KSYM,
+                         rb532_button_pressed());
+        input_sync(poll_dev->input);
+}
+
+static int __devinit rb532_button_probe(struct platform_device *pdev)
+{
+        struct input_polled_dev *poll_dev;
+        int error;
+
+        poll_dev = input_allocate_polled_device();
+        if (!poll_dev)
+                return -ENOMEM;
+
+        poll_dev->poll = rb532_button_poll;
+        poll_dev->poll_interval = RB532_BTN_RATE;
+
+        poll_dev->input->name = "rb532 button";
+        poll_dev->input->phys = "rb532/button0";
+        poll_dev->input->id.bustype = BUS_HOST;
+        poll_dev->input->dev.parent = &pdev->dev;
+
+        dev_set_drvdata(&pdev->dev, poll_dev);
+
+        input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
+
+        error = input_register_polled_device(poll_dev);
+        if (error) {
+                input_free_polled_device(poll_dev);
+                return error;
+        }
+
+        return 0;
+}
+
+static int __devexit rb532_button_remove(struct platform_device *pdev)
+{
+        struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
+
+        input_unregister_polled_device(poll_dev);
+        input_free_polled_device(poll_dev);
+        dev_set_drvdata(&pdev->dev, NULL);
+
+        return 0;
+}
+
+static struct platform_driver rb532_button_driver = {
+        .probe = rb532_button_probe,
+        .remove = __devexit_p(rb532_button_remove),
+        .driver = {
+                .name = DRV_NAME,
+                .owner = THIS_MODULE,
+        },
+};
+
+static int __init rb532_button_init(void)
+{
+        return platform_driver_register(&rb532_button_driver);
+}
+
+static void __exit rb532_button_exit(void)
+{
+        platform_driver_unregister(&rb532_button_driver);
+}
+
+module_init(rb532_button_init);
+module_exit(rb532_button_exit);
+
+MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
new file mode 100644
index 000000000000..5bb3ab51b8c6
--- /dev/null
+++ b/drivers/input/misc/rotary_encoder.c
@@ -0,0 +1,221 @@
+/*
+ * rotary_encoder.c
+ *
+ * (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ * state machine code inspired by code from Tim Ruetz
+ *
+ * A generic driver for rotary encoders connected to GPIO lines.
+ * See file:Documentation/input/rotary_encoder.txt for more information
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/rotary_encoder.h>
+
+#define DRV_NAME "rotary-encoder"
+
+struct rotary_encoder {
+        unsigned int irq_a;
+        unsigned int irq_b;
+        unsigned int pos;
+        unsigned int armed;
+        unsigned int dir;
+        struct input_dev *input;
+        struct rotary_encoder_platform_data *pdata;
+};
+
+static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+{
+        struct rotary_encoder *encoder = dev_id;
+        struct rotary_encoder_platform_data *pdata = encoder->pdata;
+        int a = !!gpio_get_value(pdata->gpio_a);
+        int b = !!gpio_get_value(pdata->gpio_b);
+        int state;
+
+        a ^= pdata->inverted_a;
+        b ^= pdata->inverted_b;
+        state = (a << 1) | b;
+
+        switch (state) {
+
+        case 0x0:
+                if (!encoder->armed)
+                        break;
+
+                if (encoder->dir) {
+                        /* turning counter-clockwise */
+                        encoder->pos += pdata->steps;
+                        encoder->pos--;
+                        encoder->pos %= pdata->steps;
+                } else {
+                        /* turning clockwise */
+                        encoder->pos++;
+                        encoder->pos %= pdata->steps;
+                }
+
+                input_report_abs(encoder->input, pdata->axis, encoder->pos);
+                input_sync(encoder->input);
+
+                encoder->armed = 0;
+                break;
+
+        case 0x1:
+        case 0x2:
+                if (encoder->armed)
+                        encoder->dir = state - 1;
+                break;
+
+        case 0x3:
+                encoder->armed = 1;
+                break;
+        }
+
+        return IRQ_HANDLED;
+}
+
+static int __devinit rotary_encoder_probe(struct platform_device *pdev)
+{
+        struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+        struct rotary_encoder *encoder;
+        struct input_dev *input;
+        int err;
+
+        if (!pdata || !pdata->steps) {
+                dev_err(&pdev->dev, "invalid platform data\n");
+                return -ENOENT;
+        }
+
+        encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
+        input = input_allocate_device();
+        if (!encoder || !input) {
+                dev_err(&pdev->dev, "failed to allocate memory for device\n");
+                err = -ENOMEM;
+                goto exit_free_mem;
+        }
+
+        encoder->input = input;
+        encoder->pdata = pdata;
+        encoder->irq_a = gpio_to_irq(pdata->gpio_a);
+        encoder->irq_b = gpio_to_irq(pdata->gpio_b);
+
+        /* create and register the input driver */
+        input->name = pdev->name;
+        input->id.bustype = BUS_HOST;
+        input->dev.parent = &pdev->dev;
+        input->evbit[0] = BIT_MASK(EV_ABS);
+        input_set_abs_params(encoder->input,
+                             pdata->axis, 0, pdata->steps, 0, 1);
+
+        err = input_register_device(input);
+        if (err) {
+                dev_err(&pdev->dev, "failed to register input device\n");
+                goto exit_free_mem;
+        }
+
+        /* request the GPIOs */
+        err = gpio_request(pdata->gpio_a, DRV_NAME);
+        if (err) {
+                dev_err(&pdev->dev, "unable to request GPIO %d\n",
+                        pdata->gpio_a);
+                goto exit_unregister_input;
+        }
+
+        err = gpio_request(pdata->gpio_b, DRV_NAME);
+        if (err) {
+                dev_err(&pdev->dev, "unable to request GPIO %d\n",
+                        pdata->gpio_b);
+                goto exit_free_gpio_a;
+        }
+
+        /* request the IRQs */
+        err = request_irq(encoder->irq_a, &rotary_encoder_irq,
+                          IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+                          DRV_NAME, encoder);
+        if (err) {
+                dev_err(&pdev->dev, "unable to request IRQ %d\n",
+                        encoder->irq_a);
+                goto exit_free_gpio_b;
+        }
+
+        err = request_irq(encoder->irq_b, &rotary_encoder_irq,
+                          IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+                          DRV_NAME, encoder);
+        if (err) {
+                dev_err(&pdev->dev, "unable to request IRQ %d\n",
+                        encoder->irq_b);
+                goto exit_free_irq_a;
+        }
+
+        platform_set_drvdata(pdev, encoder);
+
+        return 0;
+
+exit_free_irq_a:
+        free_irq(encoder->irq_a, encoder);
+exit_free_gpio_b:
+        gpio_free(pdata->gpio_b);
+exit_free_gpio_a:
+        gpio_free(pdata->gpio_a);
+exit_unregister_input:
+        input_unregister_device(input);
+        input = NULL; /* so we don't try to free it */
+exit_free_mem:
+        input_free_device(input);
+        kfree(encoder);
+        return err;
+}
+
+static int __devexit rotary_encoder_remove(struct platform_device *pdev)
+{
+        struct rotary_encoder *encoder = platform_get_drvdata(pdev);
+        struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+
+        free_irq(encoder->irq_a, encoder);
+        free_irq(encoder->irq_b, encoder);
+        gpio_free(pdata->gpio_a);
+        gpio_free(pdata->gpio_b);
+        input_unregister_device(encoder->input);
+        platform_set_drvdata(pdev, NULL);
+        kfree(encoder);
+
+        return 0;
+}
+
+static struct platform_driver rotary_encoder_driver = {
+        .probe          = rotary_encoder_probe,
+        .remove         = __devexit_p(rotary_encoder_remove),
+        .driver         = {
+                .name   = DRV_NAME,
+                .owner  = THIS_MODULE,
+        }
+};
+
+static int __init rotary_encoder_init(void)
+{
+        return platform_driver_register(&rotary_encoder_driver);
+}
+
+static void __exit rotary_encoder_exit(void)
+{
+        platform_driver_unregister(&rotary_encoder_driver);
+}
+
+module_init(rotary_encoder_init);
+module_exit(rotary_encoder_exit);
+
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DESCRIPTION("GPIO rotary encoder driver");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_LICENSE("GPL v2");
+
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 4f38e6f7dfdd..c66cc3d08c2f 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -292,4 +292,15 @@ config MOUSE_PXA930_TRKBALL
         help
           Say Y here to support PXA930 Trackball mouse.
 
+config MOUSE_MAPLE
+        tristate "Maple mouse (for the Dreamcast)"
+        depends on MAPLE
+        help
+          This driver supports the Maple mouse on the SEGA Dreamcast.
+
+          Most Dreamcast users, who have a mouse, will say Y here.
+
+          To compile this driver as a module choose M here: the module will be
+          called maplemouse.
+
 endif
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 8c8a1f236e28..472189468d67 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -6,18 +6,19 @@
 
 obj-$(CONFIG_MOUSE_AMIGA)               += amimouse.o
 obj-$(CONFIG_MOUSE_APPLETOUCH)          += appletouch.o
-obj-$(CONFIG_MOUSE_BCM5974)             += bcm5974.o
 obj-$(CONFIG_MOUSE_ATARI)               += atarimouse.o
-obj-$(CONFIG_MOUSE_RISCPC)              += rpcmouse.o
+obj-$(CONFIG_MOUSE_BCM5974)             += bcm5974.o
+obj-$(CONFIG_MOUSE_GPIO)                += gpio_mouse.o
+obj-$(CONFIG_MOUSE_HIL)                 += hil_ptr.o
 obj-$(CONFIG_MOUSE_INPORT)              += inport.o
 obj-$(CONFIG_MOUSE_LOGIBM)              += logibm.o
+obj-$(CONFIG_MOUSE_MAPLE)               += maplemouse.o
 obj-$(CONFIG_MOUSE_PC110PAD)            += pc110pad.o
 obj-$(CONFIG_MOUSE_PS2)                 += psmouse.o
 obj-$(CONFIG_MOUSE_PXA930_TRKBALL)      += pxa930_trkball.o
+obj-$(CONFIG_MOUSE_RISCPC)              += rpcmouse.o
 obj-$(CONFIG_MOUSE_SERIAL)              += sermouse.o
-obj-$(CONFIG_MOUSE_HIL)                 += hil_ptr.o
 obj-$(CONFIG_MOUSE_VSXXXAA)             += vsxxxaa.o
-obj-$(CONFIG_MOUSE_GPIO)                += gpio_mouse.o
 
 psmouse-objs := psmouse-base.o synaptics.o
 
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 55cd0fa68339..a1ad2f1a7bb3 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -472,7 +472,7 @@ static enum hgpk_model_t hgpk_get_model(struct psmouse *psmouse)
                 return -EIO;
         }
 
-        hgpk_dbg(psmouse, "ID: %02x %02x %02x", param[0], param[1], param[2]);
+        hgpk_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
 
         /* HGPK signature: 0x67, 0x00, 0x<model> */
         if (param[0] != 0x67 || param[1] != 0x00)
diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
new file mode 100644
index 000000000000..d196abfb68bc
--- /dev/null
+++ b/drivers/input/mouse/maplemouse.c
@@ -0,0 +1,147 @@
+/*
+ *      SEGA Dreamcast mouse driver
+ *      Based on drivers/usb/usbmouse.c
+ *
+ *      Copyright Yaegashi Takeshi, 2001
+ *      Adrian McMenamin, 2008
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
+MODULE_LICENSE("GPL");
+
+struct dc_mouse {
+        struct input_dev *dev;
+        struct maple_device *mdev;
+};
+
+static void dc_mouse_callback(struct mapleq *mq)
+{
+        int buttons, relx, rely, relz;
+        struct maple_device *mapledev = mq->dev;
+        struct dc_mouse *mse = maple_get_drvdata(mapledev);
+        struct input_dev *dev = mse->dev;
+        unsigned char *res = mq->recvbuf;
+
+        buttons = ~res[8];
+        relx = *(unsigned short *)(res + 12) - 512;
+        rely = *(unsigned short *)(res + 14) - 512;
+        relz = *(unsigned short *)(res + 16) - 512;
+
+        input_report_key(dev, BTN_LEFT,   buttons & 4);
+        input_report_key(dev, BTN_MIDDLE, buttons & 9);
+        input_report_key(dev, BTN_RIGHT,  buttons & 2);
+        input_report_rel(dev, REL_X,      relx);
+        input_report_rel(dev, REL_Y,      rely);
+        input_report_rel(dev, REL_WHEEL,  relz);
+        input_sync(dev);
+}
+
+static int dc_mouse_open(struct input_dev *dev)
+{
+        struct dc_mouse *mse = dev->dev.platform_data;
+
+        maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
+                MAPLE_FUNC_MOUSE);
+
+        return 0;
+}
+
+static void dc_mouse_close(struct input_dev *dev)
+{
+        struct dc_mouse *mse = dev->dev.platform_data;
+
+        maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
+                MAPLE_FUNC_MOUSE);
+}
+
+
+static int __devinit probe_maple_mouse(struct device *dev)
+{
+        struct maple_device *mdev = to_maple_dev(dev);
+        struct maple_driver *mdrv = to_maple_driver(dev->driver);
+        struct input_dev *input_dev;
+        struct dc_mouse *mse;
+        int error;
+
+        mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
+        input_dev = input_allocate_device();
+
+        if (!mse || !input_dev) {
+                error = -ENOMEM;
+                goto fail;
+        }
+
+        mse->dev = input_dev;
+        mse->mdev = mdev;
+
+        input_set_drvdata(input_dev, mse);
+        input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+        input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+                BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
+        input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
+                BIT_MASK(REL_WHEEL);
+        input_dev->name = mdev->product_name;
+        input_dev->id.bustype = BUS_HOST;
+        input_dev->open = dc_mouse_open;
+        input_dev->close = dc_mouse_close;
+
+        mdev->driver = mdrv;
+        maple_set_drvdata(mdev, mse);
+
+        error = input_register_device(input_dev);
+        if (error)
+                goto fail;
+
+        return 0;
+
+fail:
+        input_free_device(input_dev);
+        maple_set_drvdata(mdev, NULL);
+        kfree(mse);
+        mdev->driver = NULL;
+        return error;
+}
+
+static int __devexit remove_maple_mouse(struct device *dev)
+{
+        struct maple_device *mdev = to_maple_dev(dev);
+        struct dc_mouse *mse = maple_get_drvdata(mdev);
+
+        mdev->callback = NULL;
+        input_unregister_device(mse->dev);
+        maple_set_drvdata(mdev, NULL);
+        kfree(mse);
+
+        return 0;
+}
+
+static struct maple_driver dc_mouse_driver = {
+        .function =     MAPLE_FUNC_MOUSE,
+        .drv = {
+                .name = "Dreamcast_mouse",
+                .probe = probe_maple_mouse,
+                .remove = __devexit_p(remove_maple_mouse),
+        },
+};
+
+static int __init dc_mouse_init(void)
+{
+        return maple_driver_register(&dc_mouse_driver);
+}
+
+static void __exit dc_mouse_exit(void)
+{
+        maple_driver_unregister(&dc_mouse_driver);
+}
+
+module_init(dc_mouse_init);
+module_exit(dc_mouse_exit);
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index fd09c8df81f2..f63995f854ff 100644
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -111,11 +111,8 @@ static int __init pc110pad_init(void)
         struct pci_dev *dev;
         int err;
 
-        dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
-        if (dev) {
-                pci_dev_put(dev);
+        if (!no_pci_devices())
                 return -ENODEV;
-        }
 
         if (!request_region(pc110pad_io, 4, "pc110pad")) {
                 printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n",
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 6fa2deff7446..83ed2d56b924 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -151,6 +151,14 @@ static struct dmi_system_id __initdata i8042_dmi_noloop_table[] = {
                         DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
                 },
         },
+        {
+                .ident = "HP DV9700",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
+                },
+        },
         { }
 };
 
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index bb6486a8c070..b01fd61dadcc 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -29,6 +29,51 @@ config TOUCHSCREEN_ADS7846
           To compile this driver as a module, choose M here: the
           module will be called ads7846.
 
+config TOUCHSCREEN_AD7877
+        tristate "AD7877 based touchscreens"
+        depends on SPI_MASTER
+        help
+          Say Y here if you have a touchscreen interface using the
+          AD7877 controller, and your board-specific initialization
+          code includes that in its table of SPI devices.
+
+          If unsure, say N (but it's safe to say "Y").
+
+          To compile this driver as a module, choose M here: the
+          module will be called ad7877.
+
+config TOUCHSCREEN_AD7879_I2C
+        tristate "AD7879 based touchscreens: AD7879-1 I2C Interface"
+        depends on I2C
+        select TOUCHSCREEN_AD7879
+        help
+          Say Y here if you have a touchscreen interface using the
+          AD7879-1 controller, and your board-specific initialization
+          code includes that in its table of I2C devices.
+
+          If unsure, say N (but it's safe to say "Y").
+
+          To compile this driver as a module, choose M here: the
+          module will be called ad7879.
+
+config TOUCHSCREEN_AD7879_SPI
+        tristate "AD7879 based touchscreens: AD7879 SPI Interface"
+        depends on SPI_MASTER && TOUCHSCREEN_AD7879_I2C = n
+        select TOUCHSCREEN_AD7879
+        help
+          Say Y here if you have a touchscreen interface using the
+          AD7879 controller, and your board-specific initialization
+          code includes that in its table of SPI devices.
+
+          If unsure, say N (but it's safe to say "Y").
+
+          To compile this driver as a module, choose M here: the
+          module will be called ad7879.
+
+config TOUCHSCREEN_AD7879
+        tristate
+        default n
+
 config TOUCHSCREEN_BITSY
         tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
         depends on SA1100_BITSY
@@ -308,6 +353,19 @@ config TOUCHSCREEN_WM97XX_MAINSTONE
           To compile this driver as a module, choose M here: the
           module will be called mainstone-wm97xx.
 
+config TOUCHSCREEN_WM97XX_ZYLONITE
+        tristate "Zylonite accelerated touch"
+        depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE
+        select TOUCHSCREEN_WM9713
+        help
+          Say Y here for support for streaming mode with the touchscreen
+          on Zylonite systems.
+
+          If unsure, say N.
+
+          To compile this driver as a module, choose M here: the
+          module will be called zylonite-wm97xx.
+
 config TOUCHSCREEN_USB_COMPOSITE
         tristate "USB Touchscreen Driver"
         depends on USB_ARCH_HAS_HCD
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index d3375aff46fe..6700f7b9d165 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -6,6 +6,8 @@
 
 wm97xx-ts-y := wm97xx-core.o
 
+obj-$(CONFIG_TOUCHSCREEN_AD7877)        += ad7877.o
+obj-$(CONFIG_TOUCHSCREEN_AD7879)        += ad7879.o
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)       += ads7846.o
 obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC)  += atmel_tsadcc.o
 obj-$(CONFIG_TOUCHSCREEN_BITSY)         += h3600_ts_input.o
@@ -34,3 +36,4 @@ wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705)	+= wm9705.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712)  += wm9712.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713)  += wm9713.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE)      += mainstone-wm97xx.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE)       += zylonite-wm97xx.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
new file mode 100644
index 000000000000..e4728a28f492
--- /dev/null
+++ b/drivers/input/touchscreen/ad7877.c
@@ -0,0 +1,844 @@
+/*
+ * Copyright (C) 2006-2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description: AD7877 based touchscreen, sensor (ADCs), DAC and GPIO driver
+ * Based on:    ads7846.c
+ *
+ * Bugs:        Enter bugs at http://blackfin.uclinux.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.
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ *  - corgi_ts.c
+ *      Copyright (C) 2004-2005 Richard Purdie
+ *  - omap_ts.[hc], ads7846.h, ts_osk.c
+ *      Copyright (C) 2002 MontaVista Software
+ *      Copyright (C) 2004 Texas Instruments
+ *      Copyright (C) 2005 Dirk Behme
+ */
+
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ad7877.h>
+#include <asm/irq.h>
+
+#define TS_PEN_UP_TIMEOUT       msecs_to_jiffies(50)
+
+#define MAX_SPI_FREQ_HZ                 20000000
+#define MAX_12BIT                       ((1<<12)-1)
+
+#define AD7877_REG_ZEROS                        0
+#define AD7877_REG_CTRL1                        1
+#define AD7877_REG_CTRL2                        2
+#define AD7877_REG_ALERT                        3
+#define AD7877_REG_AUX1HIGH                     4
+#define AD7877_REG_AUX1LOW                      5
+#define AD7877_REG_BAT1HIGH                     6
+#define AD7877_REG_BAT1LOW                      7
+#define AD7877_REG_BAT2HIGH                     8
+#define AD7877_REG_BAT2LOW                      9
+#define AD7877_REG_TEMP1HIGH                    10
+#define AD7877_REG_TEMP1LOW                     11
+#define AD7877_REG_SEQ0                         12
+#define AD7877_REG_SEQ1                         13
+#define AD7877_REG_DAC                          14
+#define AD7877_REG_NONE1                        15
+#define AD7877_REG_EXTWRITE                     15
+#define AD7877_REG_XPLUS                        16
+#define AD7877_REG_YPLUS                        17
+#define AD7877_REG_Z2                           18
+#define AD7877_REG_aux1                         19
+#define AD7877_REG_aux2                         20
+#define AD7877_REG_aux3                         21
+#define AD7877_REG_bat1                         22
+#define AD7877_REG_bat2                         23
+#define AD7877_REG_temp1                        24
+#define AD7877_REG_temp2                        25
+#define AD7877_REG_Z1                           26
+#define AD7877_REG_GPIOCTRL1                    27
+#define AD7877_REG_GPIOCTRL2                    28
+#define AD7877_REG_GPIODATA                     29
+#define AD7877_REG_NONE2                        30
+#define AD7877_REG_NONE3                        31
+
+#define AD7877_SEQ_YPLUS_BIT                    (1<<11)
+#define AD7877_SEQ_XPLUS_BIT                    (1<<10)
+#define AD7877_SEQ_Z2_BIT                       (1<<9)
+#define AD7877_SEQ_AUX1_BIT                     (1<<8)
+#define AD7877_SEQ_AUX2_BIT                     (1<<7)
+#define AD7877_SEQ_AUX3_BIT                     (1<<6)
+#define AD7877_SEQ_BAT1_BIT                     (1<<5)
+#define AD7877_SEQ_BAT2_BIT                     (1<<4)
+#define AD7877_SEQ_TEMP1_BIT                    (1<<3)
+#define AD7877_SEQ_TEMP2_BIT                    (1<<2)
+#define AD7877_SEQ_Z1_BIT                       (1<<1)
+
+enum {
+        AD7877_SEQ_YPOS  = 0,
+        AD7877_SEQ_XPOS  = 1,
+        AD7877_SEQ_Z2    = 2,
+        AD7877_SEQ_AUX1  = 3,
+        AD7877_SEQ_AUX2  = 4,
+        AD7877_SEQ_AUX3  = 5,
+        AD7877_SEQ_BAT1  = 6,
+        AD7877_SEQ_BAT2  = 7,
+        AD7877_SEQ_TEMP1 = 8,
+        AD7877_SEQ_TEMP2 = 9,
+        AD7877_SEQ_Z1    = 10,
+        AD7877_NR_SENSE  = 11,
+};
+
+/* DAC Register Default RANGE 0 to Vcc, Volatge Mode, DAC On */
+#define AD7877_DAC_CONF                 0x1
+
+/* If gpio3 is set AUX3/GPIO3 acts as GPIO Output */
+#define AD7877_EXTW_GPIO_3_CONF         0x1C4
+#define AD7877_EXTW_GPIO_DATA           0x200
+
+/* Control REG 2 */
+#define AD7877_TMR(x)                   ((x & 0x3) << 0)
+#define AD7877_REF(x)                   ((x & 0x1) << 2)
+#define AD7877_POL(x)                   ((x & 0x1) << 3)
+#define AD7877_FCD(x)                   ((x & 0x3) << 4)
+#define AD7877_PM(x)                    ((x & 0x3) << 6)
+#define AD7877_ACQ(x)                   ((x & 0x3) << 8)
+#define AD7877_AVG(x)                   ((x & 0x3) << 10)
+
+/* Control REG 1 */
+#define AD7877_SER                      (1 << 11)       /* non-differential */
+#define AD7877_DFR                      (0 << 11)       /* differential */
+
+#define AD7877_MODE_NOC  (0)    /* Do not convert */
+#define AD7877_MODE_SCC  (1)    /* Single channel conversion */
+#define AD7877_MODE_SEQ0 (2)    /* Sequence 0 in Slave Mode */
+#define AD7877_MODE_SEQ1 (3)    /* Sequence 1 in Master Mode */
+
+#define AD7877_CHANADD(x)               ((x&0xF)<<7)
+#define AD7877_READADD(x)               ((x)<<2)
+#define AD7877_WRITEADD(x)              ((x)<<12)
+
+#define AD7877_READ_CHAN(x) (AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_SER | \
+                AD7877_MODE_SCC | AD7877_CHANADD(AD7877_REG_ ## x) | \
+                AD7877_READADD(AD7877_REG_ ## x))
+
+#define AD7877_MM_SEQUENCE (AD7877_SEQ_YPLUS_BIT | AD7877_SEQ_XPLUS_BIT | \
+                AD7877_SEQ_Z2_BIT | AD7877_SEQ_Z1_BIT)
+
+/*
+ * Non-touchscreen sensors only use single-ended conversions.
+ */
+
+struct ser_req {
+        u16                     reset;
+        u16                     ref_on;
+        u16                     command;
+        u16                     sample;
+        struct spi_message      msg;
+        struct spi_transfer     xfer[6];
+};
+
+struct ad7877 {
+        struct input_dev        *input;
+        char                    phys[32];
+
+        struct spi_device       *spi;
+        u16                     model;
+        u16                     vref_delay_usecs;
+        u16                     x_plate_ohms;
+        u16                     pressure_max;
+
+        u16                     cmd_crtl1;
+        u16                     cmd_crtl2;
+        u16                     cmd_dummy;
+        u16                     dac;
+
+        u8                      stopacq_polarity;
+        u8                      first_conversion_delay;
+        u8                      acquisition_time;
+        u8                      averaging;
+        u8                      pen_down_acc_interval;
+
+        u16                     conversion_data[AD7877_NR_SENSE];
+
+        struct spi_transfer     xfer[AD7877_NR_SENSE + 2];
+        struct spi_message      msg;
+
+        struct mutex            mutex;
+        unsigned                disabled:1;     /* P: mutex */
+        unsigned                gpio3:1;        /* P: mutex */
+        unsigned                gpio4:1;        /* P: mutex */
+
+        spinlock_t              lock;
+        struct timer_list       timer;          /* P: lock */
+        unsigned                pending:1;      /* P: lock */
+};
+
+static int gpio3;
+module_param(gpio3, int, 0);
+MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
+
+/*
+ * ad7877_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done using spi_async() in the interrupt handler.
+ */
+
+static int ad7877_read(struct spi_device *spi, u16 reg)
+{
+        struct ser_req *req;
+        int status, ret;
+
+        req = kzalloc(sizeof *req, GFP_KERNEL);
+        if (!req)
+                return -ENOMEM;
+
+        spi_message_init(&req->msg);
+
+        req->command = (u16) (AD7877_WRITEADD(AD7877_REG_CTRL1) |
+                        AD7877_READADD(reg));
+        req->xfer[0].tx_buf = &req->command;
+        req->xfer[0].len = 2;
+
+        req->xfer[1].rx_buf = &req->sample;
+        req->xfer[1].len = 2;
+
+        spi_message_add_tail(&req->xfer[0], &req->msg);
+        spi_message_add_tail(&req->xfer[1], &req->msg);
+
+        status = spi_sync(spi, &req->msg);
+        ret = status ? : req->sample;
+
+        kfree(req);
+
+        return ret;
+}
+
+static int ad7877_write(struct spi_device *spi, u16 reg, u16 val)
+{
+        struct ser_req *req;
+        int status;
+
+        req = kzalloc(sizeof *req, GFP_KERNEL);
+        if (!req)
+                return -ENOMEM;
+
+        spi_message_init(&req->msg);
+
+        req->command = (u16) (AD7877_WRITEADD(reg) | (val & MAX_12BIT));
+        req->xfer[0].tx_buf = &req->command;
+        req->xfer[0].len = 2;
+
+        spi_message_add_tail(&req->xfer[0], &req->msg);
+
+        status = spi_sync(spi, &req->msg);
+
+        kfree(req);
+
+        return status;
+}
+
+static int ad7877_read_adc(struct spi_device *spi, unsigned command)
+{
+        struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+        struct ser_req *req;
+        int status;
+        int sample;
+        int i;
+
+        req = kzalloc(sizeof *req, GFP_KERNEL);
+        if (!req)
+                return -ENOMEM;
+
+        spi_message_init(&req->msg);
+
+        /* activate reference, so it has time to settle; */
+        req->ref_on = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+                         AD7877_POL(ts->stopacq_polarity) |
+                         AD7877_AVG(0) | AD7877_PM(2) | AD7877_TMR(0) |
+                         AD7877_ACQ(ts->acquisition_time) | AD7877_FCD(0);
+
+        req->reset = AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_MODE_NOC;
+
+        req->command = (u16) command;
+
+        req->xfer[0].tx_buf = &req->reset;
+        req->xfer[0].len = 2;
+
+        req->xfer[1].tx_buf = &req->ref_on;
+        req->xfer[1].len = 2;
+        req->xfer[1].delay_usecs = ts->vref_delay_usecs;
+
+        req->xfer[2].tx_buf = &req->command;
+        req->xfer[2].len = 2;
+        req->xfer[2].delay_usecs = ts->vref_delay_usecs;
+
+        req->xfer[3].rx_buf = &req->sample;
+        req->xfer[3].len = 2;
+
+        req->xfer[4].tx_buf = &ts->cmd_crtl2;   /*REF OFF*/
+        req->xfer[4].len = 2;
+
+        req->xfer[5].tx_buf = &ts->cmd_crtl1;   /*DEFAULT*/
+        req->xfer[5].len = 2;
+
+        /* group all the transfers together, so we can't interfere with
+         * reading touchscreen state; disable penirq while sampling
+         */
+        for (i = 0; i < 6; i++)
+                spi_message_add_tail(&req->xfer[i], &req->msg);
+
+        status = spi_sync(spi, &req->msg);
+        sample = req->sample;
+
+        kfree(req);
+
+        return status ? : sample;
+}
+
+static void ad7877_rx(struct ad7877 *ts)
+{
+        struct input_dev *input_dev = ts->input;
+        unsigned Rt;
+        u16 x, y, z1, z2;
+
+        x = ts->conversion_data[AD7877_SEQ_XPOS] & MAX_12BIT;
+        y = ts->conversion_data[AD7877_SEQ_YPOS] & MAX_12BIT;
+        z1 = ts->conversion_data[AD7877_SEQ_Z1] & MAX_12BIT;
+        z2 = ts->conversion_data[AD7877_SEQ_Z2] & MAX_12BIT;
+
+        /*
+         * The samples processed here are already preprocessed by the AD7877.
+         * The preprocessing function consists of an averaging filter.
+         * The combination of 'first conversion delay' and averaging provides a robust solution,
+         * discarding the spurious noise in the signal and keeping only the data of interest.
+         * The size of the averaging filter is programmable. (dev.platform_data, see linux/spi/ad7877.h)
+         * Other user-programmable conversion controls include variable acquisition time,
+         * and first conversion delay. Up to 16 averages can be taken per conversion.
+         */
+
+        if (likely(x && z1)) {
+                /* compute touch pressure resistance using equation #1 */
+                Rt = (z2 - z1) * x * ts->x_plate_ohms;
+                Rt /= z1;
+                Rt = (Rt + 2047) >> 12;
+
+                input_report_abs(input_dev, ABS_X, x);
+                input_report_abs(input_dev, ABS_Y, y);
+                input_report_abs(input_dev, ABS_PRESSURE, Rt);
+                input_sync(input_dev);
+        }
+}
+
+static inline void ad7877_ts_event_release(struct ad7877 *ts)
+{
+        struct input_dev *input_dev = ts->input;
+
+        input_report_abs(input_dev, ABS_PRESSURE, 0);
+        input_sync(input_dev);
+}
+
+static void ad7877_timer(unsigned long handle)
+{
+        struct ad7877 *ts = (void *)handle;
+
+        ad7877_ts_event_release(ts);
+}
+
+static irqreturn_t ad7877_irq(int irq, void *handle)
+{
+        struct ad7877 *ts = handle;
+        unsigned long flags;
+        int status;
+
+        /*
+         * The repeated conversion sequencer controlled by TMR kicked off
+         * too fast. We ignore the last and process the sample sequence
+         * currently in the queue. It can't be older than 9.4ms, and we
+         * need to avoid that ts->msg doesn't get issued twice while in work.
+         */
+
+        spin_lock_irqsave(&ts->lock, flags);
+        if (!ts->pending) {
+                ts->pending = 1;
+
+                status = spi_async(ts->spi, &ts->msg);
+                if (status)
+                        dev_err(&ts->spi->dev, "spi_sync --> %d\n", status);
+        }
+        spin_unlock_irqrestore(&ts->lock, flags);
+
+        return IRQ_HANDLED;
+}
+
+static void ad7877_callback(void *_ts)
+{
+        struct ad7877 *ts = _ts;
+
+        spin_lock_irq(&ts->lock);
+
+        ad7877_rx(ts);
+        ts->pending = 0;
+        mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+
+        spin_unlock_irq(&ts->lock);
+}
+
+static void ad7877_disable(struct ad7877 *ts)
+{
+        mutex_lock(&ts->mutex);
+
+        if (!ts->disabled) {
+                ts->disabled = 1;
+                disable_irq(ts->spi->irq);
+
+                /* Wait for spi_async callback */
+                while (ts->pending)
+                        msleep(1);
+
+                if (del_timer_sync(&ts->timer))
+                        ad7877_ts_event_release(ts);
+        }
+
+        /* we know the chip's in lowpower mode since we always
+         * leave it that way after every request
+         */
+
+        mutex_unlock(&ts->mutex);
+}
+
+static void ad7877_enable(struct ad7877 *ts)
+{
+        mutex_lock(&ts->mutex);
+
+        if (ts->disabled) {
+                ts->disabled = 0;
+                enable_irq(ts->spi->irq);
+        }
+
+        mutex_unlock(&ts->mutex);
+}
+
+#define SHOW(name) static ssize_t \
+name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+        struct ad7877   *ts = dev_get_drvdata(dev); \
+        ssize_t v = ad7877_read_adc(ts->spi, \
+                        AD7877_READ_CHAN(name)); \
+        if (v < 0) \
+                return v; \
+        return sprintf(buf, "%u\n", (unsigned) v); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
+
+SHOW(aux1)
+SHOW(aux2)
+SHOW(aux3)
+SHOW(bat1)
+SHOW(bat2)
+SHOW(temp1)
+SHOW(temp2)
+
+static ssize_t ad7877_disable_show(struct device *dev,
+                                     struct device_attribute *attr, char *buf)
+{
+        struct ad7877   *ts = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7877_disable_store(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t count)
+{
+        struct ad7877 *ts = dev_get_drvdata(dev);
+        unsigned long val;
+        int error;
+
+        error = strict_strtoul(buf, 10, &val);
+        if (error)
+                return error;
+
+        if (val)
+                ad7877_disable(ts);
+        else
+                ad7877_enable(ts);
+
+        return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
+
+static ssize_t ad7877_dac_show(struct device *dev,
+                                     struct device_attribute *attr, char *buf)
+{
+        struct ad7877   *ts = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%u\n", ts->dac);
+}
+
+static ssize_t ad7877_dac_store(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t count)
+{
+        struct ad7877 *ts = dev_get_drvdata(dev);
+        unsigned long val;
+        int error;
+
+        error = strict_strtoul(buf, 10, &val);
+        if (error)
+                return error;
+
+        mutex_lock(&ts->mutex);
+        ts->dac = val & 0xFF;
+        ad7877_write(ts->spi, AD7877_REG_DAC, (ts->dac << 4) | AD7877_DAC_CONF);
+        mutex_unlock(&ts->mutex);
+
+        return count;
+}
+
+static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
+
+static ssize_t ad7877_gpio3_show(struct device *dev,
+                                     struct device_attribute *attr, char *buf)
+{
+        struct ad7877   *ts = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%u\n", ts->gpio3);
+}
+
+static ssize_t ad7877_gpio3_store(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t count)
+{
+        struct ad7877 *ts = dev_get_drvdata(dev);
+        unsigned long val;
+        int error;
+
+        error = strict_strtoul(buf, 10, &val);
+        if (error)
+                return error;
+
+        mutex_lock(&ts->mutex);
+        ts->gpio3 = !!val;
+        ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+                 (ts->gpio4 << 4) | (ts->gpio3 << 5));
+        mutex_unlock(&ts->mutex);
+
+        return count;
+}
+
+static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
+
+static ssize_t ad7877_gpio4_show(struct device *dev,
+                                     struct device_attribute *attr, char *buf)
+{
+        struct ad7877   *ts = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%u\n", ts->gpio4);
+}
+
+static ssize_t ad7877_gpio4_store(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t count)
+{
+        struct ad7877 *ts = dev_get_drvdata(dev);
+        unsigned long val;
+        int error;
+
+        error = strict_strtoul(buf, 10, &val);
+        if (error)
+                return error;
+
+        mutex_lock(&ts->mutex);
+        ts->gpio4 = !!val;
+        ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+                     (ts->gpio4 << 4) | (ts->gpio3 << 5));
+        mutex_unlock(&ts->mutex);
+
+        return count;
+}
+
+static DEVICE_ATTR(gpio4, 0664, ad7877_gpio4_show, ad7877_gpio4_store);
+
+static struct attribute *ad7877_attributes[] = {
+        &dev_attr_temp1.attr,
+        &dev_attr_temp2.attr,
+        &dev_attr_aux1.attr,
+        &dev_attr_aux2.attr,
+        &dev_attr_bat1.attr,
+        &dev_attr_bat2.attr,
+        &dev_attr_disable.attr,
+        &dev_attr_dac.attr,
+        &dev_attr_gpio4.attr,
+        NULL
+};
+
+static const struct attribute_group ad7877_attr_group = {
+        .attrs = ad7877_attributes,
+};
+
+static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
+{
+        struct spi_message *m;
+        int i;
+
+        ts->cmd_crtl2 = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+                        AD7877_POL(ts->stopacq_polarity) |
+                        AD7877_AVG(ts->averaging) | AD7877_PM(1) |
+                        AD7877_TMR(ts->pen_down_acc_interval) |
+                        AD7877_ACQ(ts->acquisition_time) |
+                        AD7877_FCD(ts->first_conversion_delay);
+
+        ad7877_write(spi, AD7877_REG_CTRL2, ts->cmd_crtl2);
+
+        ts->cmd_crtl1 = AD7877_WRITEADD(AD7877_REG_CTRL1) |
+                        AD7877_READADD(AD7877_REG_XPLUS-1) |
+                        AD7877_MODE_SEQ1 | AD7877_DFR;
+
+        ad7877_write(spi, AD7877_REG_CTRL1, ts->cmd_crtl1);
+
+        ts->cmd_dummy = 0;
+
+        m = &ts->msg;
+
+        spi_message_init(m);
+
+        m->complete = ad7877_callback;
+        m->context = ts;
+
+        ts->xfer[0].tx_buf = &ts->cmd_crtl1;
+        ts->xfer[0].len = 2;
+
+        spi_message_add_tail(&ts->xfer[0], m);
+
+        ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
+        ts->xfer[1].len = 2;
+
+        spi_message_add_tail(&ts->xfer[1], m);
+
+        for (i = 0; i < 11; i++) {
+                ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
+                ts->xfer[i + 2].len = 2;
+                spi_message_add_tail(&ts->xfer[i + 2], m);
+        }
+}
+
+static int __devinit ad7877_probe(struct spi_device *spi)
+{
+        struct ad7877                   *ts;
+        struct input_dev                *input_dev;
+        struct ad7877_platform_data     *pdata = spi->dev.platform_data;
+        int                             err;
+        u16                             verify;
+
+        if (!spi->irq) {
+                dev_dbg(&spi->dev, "no IRQ?\n");
+                return -ENODEV;
+        }
+
+        if (!pdata) {
+                dev_dbg(&spi->dev, "no platform data?\n");
+                return -ENODEV;
+        }
+
+        /* don't exceed max specified SPI CLK frequency */
+        if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+                dev_dbg(&spi->dev, "SPI CLK %d Hz?\n",spi->max_speed_hz);
+                return -EINVAL;
+        }
+
+        ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!ts || !input_dev) {
+                err = -ENOMEM;
+                goto err_free_mem;
+        }
+
+        dev_set_drvdata(&spi->dev, ts);
+        ts->spi = spi;
+        ts->input = input_dev;
+
+        setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
+        mutex_init(&ts->mutex);
+        spin_lock_init(&ts->lock);
+
+        ts->model = pdata->model ? : 7877;
+        ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
+        ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+        ts->pressure_max = pdata->pressure_max ? : ~0;
+
+        ts->stopacq_polarity = pdata->stopacq_polarity;
+        ts->first_conversion_delay = pdata->first_conversion_delay;
+        ts->acquisition_time = pdata->acquisition_time;
+        ts->averaging = pdata->averaging;
+        ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+
+        snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
+
+        input_dev->name = "AD7877 Touchscreen";
+        input_dev->phys = ts->phys;
+        input_dev->dev.parent = &spi->dev;
+
+        __set_bit(EV_ABS, input_dev->evbit);
+        __set_bit(ABS_X, input_dev->absbit);
+        __set_bit(ABS_Y, input_dev->absbit);
+        __set_bit(ABS_PRESSURE, input_dev->absbit);
+
+        input_set_abs_params(input_dev, ABS_X,
+                        pdata->x_min ? : 0,
+                        pdata->x_max ? : MAX_12BIT,
+                        0, 0);
+        input_set_abs_params(input_dev, ABS_Y,
+                        pdata->y_min ? : 0,
+                        pdata->y_max ? : MAX_12BIT,
+                        0, 0);
+        input_set_abs_params(input_dev, ABS_PRESSURE,
+                        pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+        ad7877_write(spi, AD7877_REG_SEQ1, AD7877_MM_SEQUENCE);
+
+        verify = ad7877_read(spi, AD7877_REG_SEQ1);
+
+        if (verify != AD7877_MM_SEQUENCE){
+                dev_err(&spi->dev, "%s: Failed to probe %s\n",
+                        dev_name(&spi->dev), input_dev->name);
+                err = -ENODEV;
+                goto err_free_mem;
+        }
+
+        if (gpio3)
+                ad7877_write(spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_3_CONF);
+
+        ad7877_setup_ts_def_msg(spi, ts);
+
+        /* Request AD7877 /DAV GPIO interrupt */
+
+        err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
+                        IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
+        if (err) {
+                dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
+                goto err_free_mem;
+        }
+
+        err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group);
+        if (err)
+                goto err_free_irq;
+
+        err = device_create_file(&spi->dev,
+                                 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+        if (err)
+                goto err_remove_attr_group;
+
+        err = input_register_device(input_dev);
+        if (err)
+                goto err_remove_attr;
+
+        return 0;
+
+err_remove_attr:
+        device_remove_file(&spi->dev,
+                           gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+err_remove_attr_group:
+        sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+err_free_irq:
+        free_irq(spi->irq, ts);
+err_free_mem:
+        input_free_device(input_dev);
+        kfree(ts);
+        dev_set_drvdata(&spi->dev, NULL);
+        return err;
+}
+
+static int __devexit ad7877_remove(struct spi_device *spi)
+{
+        struct ad7877           *ts = dev_get_drvdata(&spi->dev);
+
+        sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+        device_remove_file(&spi->dev,
+                           gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+
+        ad7877_disable(ts);
+        free_irq(ts->spi->irq, ts);
+
+        input_unregister_device(ts->input);
+        kfree(ts);
+
+        dev_dbg(&spi->dev, "unregistered touchscreen\n");
+        dev_set_drvdata(&spi->dev, NULL);
+
+        return 0;
+}
+
+#ifdef CONFIG_PM
+static int ad7877_suspend(struct spi_device *spi, pm_message_t message)
+{
+        struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+        ad7877_disable(ts);
+
+        return 0;
+}
+
+static int ad7877_resume(struct spi_device *spi)
+{
+        struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+        ad7877_enable(ts);
+
+        return 0;
+}
+#else
+#define ad7877_suspend NULL
+#define ad7877_resume  NULL
+#endif
+
+static struct spi_driver ad7877_driver = {
+        .driver = {
+                .name   = "ad7877",
+                .bus    = &spi_bus_type,
+                .owner  = THIS_MODULE,
+        },
+        .probe          = ad7877_probe,
+        .remove         = __devexit_p(ad7877_remove),
+        .suspend        = ad7877_suspend,
+        .resume         = ad7877_resume,
+};
+
+static int __init ad7877_init(void)
+{
+        return spi_register_driver(&ad7877_driver);
+}
+module_init(ad7877_init);
+
+static void __exit ad7877_exit(void)
+{
+        spi_unregister_driver(&ad7877_driver);
+}
+module_exit(ad7877_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7877 touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
new file mode 100644
index 000000000000..ea4c61d68683
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879.c
@@ -0,0 +1,782 @@
+/*
+ * Copyright (C) 2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description: AD7879 based touchscreen, and GPIO driver (I2C/SPI Interface)
+ *
+ * Bugs:        Enter bugs at http://blackfin.uclinux.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.
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ *  - corgi_ts.c
+ *      Copyright (C) 2004-2005 Richard Purdie
+ *  - omap_ts.[hc], ads7846.h, ts_osk.c
+ *      Copyright (C) 2002 MontaVista Software
+ *      Copyright (C) 2004 Texas Instruments
+ *      Copyright (C) 2005 Dirk Behme
+ *  - ad7877.c
+ *      Copyright (C) 2006-2008 Analog Devices Inc.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+
+#include <linux/spi/ad7879.h>
+
+#define AD7879_REG_ZEROS                0
+#define AD7879_REG_CTRL1                1
+#define AD7879_REG_CTRL2                2
+#define AD7879_REG_CTRL3                3
+#define AD7879_REG_AUX1HIGH             4
+#define AD7879_REG_AUX1LOW              5
+#define AD7879_REG_TEMP1HIGH            6
+#define AD7879_REG_TEMP1LOW             7
+#define AD7879_REG_XPLUS                8
+#define AD7879_REG_YPLUS                9
+#define AD7879_REG_Z1                   10
+#define AD7879_REG_Z2                   11
+#define AD7879_REG_AUXVBAT              12
+#define AD7879_REG_TEMP                 13
+#define AD7879_REG_REVID                14
+
+/* Control REG 1 */
+#define AD7879_TMR(x)                   ((x & 0xFF) << 0)
+#define AD7879_ACQ(x)                   ((x & 0x3) << 8)
+#define AD7879_MODE_NOC                 (0 << 10)       /* Do not convert */
+#define AD7879_MODE_SCC                 (1 << 10)       /* Single channel conversion */
+#define AD7879_MODE_SEQ0                (2 << 10)       /* Sequence 0 in Slave Mode */
+#define AD7879_MODE_SEQ1                (3 << 10)       /* Sequence 1 in Master Mode */
+#define AD7879_MODE_INT                 (1 << 15)       /* PENIRQ disabled INT enabled */
+
+/* Control REG 2 */
+#define AD7879_FCD(x)                   ((x & 0x3) << 0)
+#define AD7879_RESET                    (1 << 4)
+#define AD7879_MFS(x)                   ((x & 0x3) << 5)
+#define AD7879_AVG(x)                   ((x & 0x3) << 7)
+#define AD7879_SER                      (1 << 9)        /* non-differential */
+#define AD7879_DFR                      (0 << 9)        /* differential */
+#define AD7879_GPIOPOL                  (1 << 10)
+#define AD7879_GPIODIR                  (1 << 11)
+#define AD7879_GPIO_DATA                (1 << 12)
+#define AD7879_GPIO_EN                  (1 << 13)
+#define AD7879_PM(x)                    ((x & 0x3) << 14)
+#define AD7879_PM_SHUTDOWN              (0)
+#define AD7879_PM_DYN                   (1)
+#define AD7879_PM_FULLON                (2)
+
+/* Control REG 3 */
+#define AD7879_TEMPMASK_BIT             (1<<15)
+#define AD7879_AUXVBATMASK_BIT          (1<<14)
+#define AD7879_INTMODE_BIT              (1<<13)
+#define AD7879_GPIOALERTMASK_BIT        (1<<12)
+#define AD7879_AUXLOW_BIT               (1<<11)
+#define AD7879_AUXHIGH_BIT              (1<<10)
+#define AD7879_TEMPLOW_BIT              (1<<9)
+#define AD7879_TEMPHIGH_BIT             (1<<8)
+#define AD7879_YPLUS_BIT                (1<<7)
+#define AD7879_XPLUS_BIT                (1<<6)
+#define AD7879_Z1_BIT                   (1<<5)
+#define AD7879_Z2_BIT                   (1<<4)
+#define AD7879_AUX_BIT                  (1<<3)
+#define AD7879_VBAT_BIT                 (1<<2)
+#define AD7879_TEMP_BIT                 (1<<1)
+
+enum {
+        AD7879_SEQ_XPOS  = 0,
+        AD7879_SEQ_YPOS  = 1,
+        AD7879_SEQ_Z1    = 2,
+        AD7879_SEQ_Z2    = 3,
+        AD7879_NR_SENSE  = 4,
+};
+
+#define MAX_12BIT                       ((1<<12)-1)
+#define TS_PEN_UP_TIMEOUT               msecs_to_jiffies(50)
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#define AD7879_DEVID            0x7A
+typedef struct spi_device       bus_device;
+#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+#define AD7879_DEVID            0x79
+typedef struct i2c_client       bus_device;
+#endif
+
+struct ad7879 {
+        bus_device              *bus;
+        struct input_dev        *input;
+        struct work_struct      work;
+        struct timer_list       timer;
+
+        struct mutex            mutex;
+        unsigned                disabled:1;     /* P: mutex */
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+        struct spi_message      msg;
+        struct spi_transfer     xfer[AD7879_NR_SENSE + 1];
+        u16                     cmd;
+#endif
+        u16                     conversion_data[AD7879_NR_SENSE];
+        char                    phys[32];
+        u8                      first_conversion_delay;
+        u8                      acquisition_time;
+        u8                      averaging;
+        u8                      pen_down_acc_interval;
+        u8                      median;
+        u16                     x_plate_ohms;
+        u16                     pressure_max;
+        u16                     gpio_init;
+        u16                     cmd_crtl1;
+        u16                     cmd_crtl2;
+        u16                     cmd_crtl3;
+        unsigned                gpio:1;
+};
+
+static int ad7879_read(bus_device *, u8);
+static int ad7879_write(bus_device *, u8, u16);
+static void ad7879_collect(struct ad7879 *);
+
+static void ad7879_report(struct ad7879 *ts)
+{
+        struct input_dev *input_dev = ts->input;
+        unsigned Rt;
+        u16 x, y, z1, z2;
+
+        x = ts->conversion_data[AD7879_SEQ_XPOS] & MAX_12BIT;
+        y = ts->conversion_data[AD7879_SEQ_YPOS] & MAX_12BIT;
+        z1 = ts->conversion_data[AD7879_SEQ_Z1] & MAX_12BIT;
+        z2 = ts->conversion_data[AD7879_SEQ_Z2] & MAX_12BIT;
+
+        /*
+         * The samples processed here are already preprocessed by the AD7879.
+         * The preprocessing function consists of a median and an averaging filter.
+         * The combination of these two techniques provides a robust solution,
+         * discarding the spurious noise in the signal and keeping only the data of interest.
+         * The size of both filters is programmable. (dev.platform_data, see linux/spi/ad7879.h)
+         * Other user-programmable conversion controls include variable acquisition time,
+         * and first conversion delay. Up to 16 averages can be taken per conversion.
+         */
+
+        if (likely(x && z1)) {
+                /* compute touch pressure resistance using equation #1 */
+                Rt = (z2 - z1) * x * ts->x_plate_ohms;
+                Rt /= z1;
+                Rt = (Rt + 2047) >> 12;
+
+                input_report_abs(input_dev, ABS_X, x);
+                input_report_abs(input_dev, ABS_Y, y);
+                input_report_abs(input_dev, ABS_PRESSURE, Rt);
+                input_sync(input_dev);
+        }
+}
+
+static void ad7879_work(struct work_struct *work)
+{
+        struct ad7879 *ts = container_of(work, struct ad7879, work);
+
+        /* use keventd context to read the result registers */
+        ad7879_collect(ts);
+        ad7879_report(ts);
+        mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+}
+
+static void ad7879_ts_event_release(struct ad7879 *ts)
+{
+        struct input_dev *input_dev = ts->input;
+
+        input_report_abs(input_dev, ABS_PRESSURE, 0);
+        input_sync(input_dev);
+}
+
+static void ad7879_timer(unsigned long handle)
+{
+        struct ad7879 *ts = (void *)handle;
+
+        ad7879_ts_event_release(ts);
+}
+
+static irqreturn_t ad7879_irq(int irq, void *handle)
+{
+        struct ad7879 *ts = handle;
+
+        /* The repeated conversion sequencer controlled by TMR kicked off too fast.
+         * We ignore the last and process the sample sequence currently in the queue.
+         * It can't be older than 9.4ms
+         */
+
+        if (!work_pending(&ts->work))
+                schedule_work(&ts->work);
+
+        return IRQ_HANDLED;
+}
+
+static void ad7879_setup(struct ad7879 *ts)
+{
+        ts->cmd_crtl3 = AD7879_YPLUS_BIT |
+                        AD7879_XPLUS_BIT |
+                        AD7879_Z2_BIT |
+                        AD7879_Z1_BIT |
+                        AD7879_TEMPMASK_BIT |
+                        AD7879_AUXVBATMASK_BIT |
+                        AD7879_GPIOALERTMASK_BIT;
+
+        ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
+                        AD7879_AVG(ts->averaging) |
+                        AD7879_MFS(ts->median) |
+                        AD7879_FCD(ts->first_conversion_delay) |
+                        ts->gpio_init;
+
+        ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
+                        AD7879_ACQ(ts->acquisition_time) |
+                        AD7879_TMR(ts->pen_down_acc_interval);
+
+        ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
+        ad7879_write(ts->bus, AD7879_REG_CTRL3, ts->cmd_crtl3);
+        ad7879_write(ts->bus, AD7879_REG_CTRL1, ts->cmd_crtl1);
+}
+
+static void ad7879_disable(struct ad7879 *ts)
+{
+        mutex_lock(&ts->mutex);
+
+        if (!ts->disabled) {
+
+                ts->disabled = 1;
+                disable_irq(ts->bus->irq);
+
+                cancel_work_sync(&ts->work);
+
+                if (del_timer_sync(&ts->timer))
+                        ad7879_ts_event_release(ts);
+
+                ad7879_write(ts->bus, AD7879_REG_CTRL2,
+                             AD7879_PM(AD7879_PM_SHUTDOWN));
+        }
+
+        mutex_unlock(&ts->mutex);
+}
+
+static void ad7879_enable(struct ad7879 *ts)
+{
+        mutex_lock(&ts->mutex);
+
+        if (ts->disabled) {
+                ad7879_setup(ts);
+                ts->disabled = 0;
+                enable_irq(ts->bus->irq);
+        }
+
+        mutex_unlock(&ts->mutex);
+}
+
+static ssize_t ad7879_disable_show(struct device *dev,
+                                     struct device_attribute *attr, char *buf)
+{
+        struct ad7879 *ts = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7879_disable_store(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t count)
+{
+        struct ad7879 *ts = dev_get_drvdata(dev);
+        unsigned long val;
+        int error;
+
+        error = strict_strtoul(buf, 10, &val);
+        if (error)
+                return error;
+
+        if (val)
+                ad7879_disable(ts);
+        else
+                ad7879_enable(ts);
+
+        return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7879_disable_show, ad7879_disable_store);
+
+static ssize_t ad7879_gpio_show(struct device *dev,
+                                     struct device_attribute *attr, char *buf)
+{
+        struct ad7879 *ts = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%u\n", ts->gpio);
+}
+
+static ssize_t ad7879_gpio_store(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t count)
+{
+        struct ad7879 *ts = dev_get_drvdata(dev);
+        unsigned long val;
+        int error;
+
+        error = strict_strtoul(buf, 10, &val);
+        if (error)
+                return error;
+
+        mutex_lock(&ts->mutex);
+        ts->gpio = !!val;
+        error = ad7879_write(ts->bus, AD7879_REG_CTRL2,
+                           ts->gpio ?
+                                ts->cmd_crtl2 & ~AD7879_GPIO_DATA :
+                                ts->cmd_crtl2 | AD7879_GPIO_DATA);
+        mutex_unlock(&ts->mutex);
+
+        return error ? : count;
+}
+
+static DEVICE_ATTR(gpio, 0664, ad7879_gpio_show, ad7879_gpio_store);
+
+static struct attribute *ad7879_attributes[] = {
+        &dev_attr_disable.attr,
+        &dev_attr_gpio.attr,
+        NULL
+};
+
+static const struct attribute_group ad7879_attr_group = {
+        .attrs = ad7879_attributes,
+};
+
+static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
+{
+        struct input_dev *input_dev;
+        struct ad7879_platform_data *pdata = bus->dev.platform_data;
+        int err;
+        u16 revid;
+
+        if (!bus->irq) {
+                dev_err(&bus->dev, "no IRQ?\n");
+                return -ENODEV;
+        }
+
+        if (!pdata) {
+                dev_err(&bus->dev, "no platform data?\n");
+                return -ENODEV;
+        }
+
+        input_dev = input_allocate_device();
+        if (!input_dev)
+                return -ENOMEM;
+
+        ts->input = input_dev;
+
+        setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
+        INIT_WORK(&ts->work, ad7879_work);
+        mutex_init(&ts->mutex);
+
+        ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+        ts->pressure_max = pdata->pressure_max ? : ~0;
+
+        ts->first_conversion_delay = pdata->first_conversion_delay;
+        ts->acquisition_time = pdata->acquisition_time;
+        ts->averaging = pdata->averaging;
+        ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+        ts->median = pdata->median;
+
+        if (pdata->gpio_output)
+                ts->gpio_init = AD7879_GPIO_EN |
+                                (pdata->gpio_default ? 0 : AD7879_GPIO_DATA);
+        else
+                ts->gpio_init = AD7879_GPIO_EN | AD7879_GPIODIR;
+
+        snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&bus->dev));
+
+        input_dev->name = "AD7879 Touchscreen";
+        input_dev->phys = ts->phys;
+        input_dev->dev.parent = &bus->dev;
+
+        __set_bit(EV_ABS, input_dev->evbit);
+        __set_bit(ABS_X, input_dev->absbit);
+        __set_bit(ABS_Y, input_dev->absbit);
+        __set_bit(ABS_PRESSURE, input_dev->absbit);
+
+        input_set_abs_params(input_dev, ABS_X,
+                        pdata->x_min ? : 0,
+                        pdata->x_max ? : MAX_12BIT,
+                        0, 0);
+        input_set_abs_params(input_dev, ABS_Y,
+                        pdata->y_min ? : 0,
+                        pdata->y_max ? : MAX_12BIT,
+                        0, 0);
+        input_set_abs_params(input_dev, ABS_PRESSURE,
+                        pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+        err = ad7879_write(bus, AD7879_REG_CTRL2, AD7879_RESET);
+
+        if (err < 0) {
+                dev_err(&bus->dev, "Failed to write %s\n", input_dev->name);
+                goto err_free_mem;
+        }
+
+        revid = ad7879_read(bus, AD7879_REG_REVID);
+
+        if ((revid & 0xFF) != AD7879_DEVID) {
+                dev_err(&bus->dev, "Failed to probe %s\n", input_dev->name);
+                err = -ENODEV;
+                goto err_free_mem;
+        }
+
+        ad7879_setup(ts);
+
+        err = request_irq(bus->irq, ad7879_irq,
+                          IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
+                          bus->dev.driver->name, ts);
+
+        if (err) {
+                dev_err(&bus->dev, "irq %d busy?\n", bus->irq);
+                goto err_free_mem;
+        }
+
+        err = sysfs_create_group(&bus->dev.kobj, &ad7879_attr_group);
+        if (err)
+                goto err_free_irq;
+
+        err = input_register_device(input_dev);
+        if (err)
+                goto err_remove_attr;
+
+        dev_info(&bus->dev, "Rev.%d touchscreen, irq %d\n",
+                 revid >> 8, bus->irq);
+
+        return 0;
+
+err_remove_attr:
+        sysfs_remove_group(&bus->dev.kobj, &ad7879_attr_group);
+err_free_irq:
+        free_irq(bus->irq, ts);
+err_free_mem:
+        input_free_device(input_dev);
+
+        return err;
+}
+
+static int __devexit ad7879_destroy(bus_device *bus, struct ad7879 *ts)
+{
+        ad7879_disable(ts);
+        sysfs_remove_group(&ts->bus->dev.kobj, &ad7879_attr_group);
+        free_irq(ts->bus->irq, ts);
+        input_unregister_device(ts->input);
+        dev_dbg(&bus->dev, "unregistered touchscreen\n");
+
+        return 0;
+}
+
+#ifdef CONFIG_PM
+static int ad7879_suspend(bus_device *bus, pm_message_t message)
+{
+        struct ad7879 *ts = dev_get_drvdata(&bus->dev);
+
+        ad7879_disable(ts);
+
+        return 0;
+}
+
+static int ad7879_resume(bus_device *bus)
+{
+        struct ad7879 *ts = dev_get_drvdata(&bus->dev);
+
+        ad7879_enable(ts);
+
+        return 0;
+}
+#else
+#define ad7879_suspend NULL
+#define ad7879_resume  NULL
+#endif
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#define MAX_SPI_FREQ_HZ         5000000
+#define AD7879_CMD_MAGIC        0xE000
+#define AD7879_CMD_READ         (1 << 10)
+#define AD7879_WRITECMD(reg)    (AD7879_CMD_MAGIC | (reg & 0xF))
+#define AD7879_READCMD(reg)     (AD7879_CMD_MAGIC | AD7879_CMD_READ | (reg & 0xF))
+
+struct ser_req {
+        u16                     command;
+        u16                     data;
+        struct spi_message      msg;
+        struct spi_transfer     xfer[2];
+};
+
+/*
+ * ad7879_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done in ad7879_collect().
+ */
+
+static int ad7879_read(struct spi_device *spi, u8 reg)
+{
+        struct ser_req *req;
+        int status, ret;
+
+        req = kzalloc(sizeof *req, GFP_KERNEL);
+        if (!req)
+                return -ENOMEM;
+
+        spi_message_init(&req->msg);
+
+        req->command = (u16) AD7879_READCMD(reg);
+        req->xfer[0].tx_buf = &req->command;
+        req->xfer[0].len = 2;
+
+        req->xfer[1].rx_buf = &req->data;
+        req->xfer[1].len = 2;
+
+        spi_message_add_tail(&req->xfer[0], &req->msg);
+        spi_message_add_tail(&req->xfer[1], &req->msg);
+
+        status = spi_sync(spi, &req->msg);
+        ret = status ? : req->data;
+
+        kfree(req);
+
+        return ret;
+}
+
+static int ad7879_write(struct spi_device *spi, u8 reg, u16 val)
+{
+        struct ser_req *req;
+        int status;
+
+        req = kzalloc(sizeof *req, GFP_KERNEL);
+        if (!req)
+                return -ENOMEM;
+
+        spi_message_init(&req->msg);
+
+        req->command = (u16) AD7879_WRITECMD(reg);
+        req->xfer[0].tx_buf = &req->command;
+        req->xfer[0].len = 2;
+
+        req->data = val;
+        req->xfer[1].tx_buf = &req->data;
+        req->xfer[1].len = 2;
+
+        spi_message_add_tail(&req->xfer[0], &req->msg);
+        spi_message_add_tail(&req->xfer[1], &req->msg);
+
+        status = spi_sync(spi, &req->msg);
+
+        kfree(req);
+
+        return status;
+}
+
+static void ad7879_collect(struct ad7879 *ts)
+{
+        int status = spi_sync(ts->bus, &ts->msg);
+
+        if (status)
+                dev_err(&ts->bus->dev, "spi_sync --> %d\n", status);
+}
+
+static void ad7879_setup_ts_def_msg(struct ad7879 *ts)
+{
+        struct spi_message *m;
+        int i;
+
+        ts->cmd = (u16) AD7879_READCMD(AD7879_REG_XPLUS);
+
+        m = &ts->msg;
+        spi_message_init(m);
+        ts->xfer[0].tx_buf = &ts->cmd;
+        ts->xfer[0].len = 2;
+
+        spi_message_add_tail(&ts->xfer[0], m);
+
+        for (i = 0; i < AD7879_NR_SENSE; i++) {
+                ts->xfer[i + 1].rx_buf = &ts->conversion_data[i];
+                ts->xfer[i + 1].len = 2;
+                spi_message_add_tail(&ts->xfer[i + 1], m);
+        }
+}
+
+static int __devinit ad7879_probe(struct spi_device *spi)
+{
+        struct ad7879 *ts;
+        int error;
+
+        /* don't exceed max specified SPI CLK frequency */
+        if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+                dev_err(&spi->dev, "SPI CLK %d Hz?\n", spi->max_speed_hz);
+                return -EINVAL;
+        }
+
+        ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
+        if (!ts)
+                return -ENOMEM;
+
+        dev_set_drvdata(&spi->dev, ts);
+        ts->bus = spi;
+
+        ad7879_setup_ts_def_msg(ts);
+
+        error = ad7879_construct(spi, ts);
+        if (error) {
+                dev_set_drvdata(&spi->dev, NULL);
+                kfree(ts);
+        }
+
+        return 0;
+}
+
+static int __devexit ad7879_remove(struct spi_device *spi)
+{
+        struct ad7879 *ts = dev_get_drvdata(&spi->dev);
+
+        ad7879_destroy(spi, ts);
+        dev_set_drvdata(&spi->dev, NULL);
+        kfree(ts);
+
+        return 0;
+}
+
+static struct spi_driver ad7879_driver = {
+        .driver = {
+                .name   = "ad7879",
+                .bus    = &spi_bus_type,
+                .owner  = THIS_MODULE,
+        },
+        .probe          = ad7879_probe,
+        .remove         = __devexit_p(ad7879_remove),
+        .suspend        = ad7879_suspend,
+        .resume         = ad7879_resume,
+};
+
+static int __init ad7879_init(void)
+{
+        return spi_register_driver(&ad7879_driver);
+}
+module_init(ad7879_init);
+
+static void __exit ad7879_exit(void)
+{
+        spi_unregister_driver(&ad7879_driver);
+}
+module_exit(ad7879_exit);
+
+#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+
+/* All registers are word-sized.
+ * AD7879 uses a high-byte first convention.
+ */
+static int ad7879_read(struct i2c_client *client, u8 reg)
+{
+        return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int ad7879_write(struct i2c_client *client, u8 reg, u16 val)
+{
+        return i2c_smbus_write_word_data(client, reg, swab16(val));
+}
+
+static void ad7879_collect(struct ad7879 *ts)
+{
+        int i;
+
+        for (i = 0; i < AD7879_NR_SENSE; i++)
+                ts->conversion_data[i] = ad7879_read(ts->bus,
+                                                     AD7879_REG_XPLUS + i);
+}
+
+static int __devinit ad7879_probe(struct i2c_client *client,
+                                        const struct i2c_device_id *id)
+{
+        struct ad7879 *ts;
+        int error;
+
+        if (!i2c_check_functionality(client->adapter,
+                                        I2C_FUNC_SMBUS_WORD_DATA)) {
+                dev_err(&client->dev, "SMBUS Word Data not Supported\n");
+                return -EIO;
+        }
+
+        ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
+        if (!ts)
+                return -ENOMEM;
+
+        i2c_set_clientdata(client, ts);
+        ts->bus = client;
+
+        error = ad7879_construct(client, ts);
+        if (error) {
+                i2c_set_clientdata(client, NULL);
+                kfree(ts);
+        }
+
+        return 0;
+}
+
+static int __devexit ad7879_remove(struct i2c_client *client)
+{
+        struct ad7879 *ts = dev_get_drvdata(&client->dev);
+
+        ad7879_destroy(client, ts);
+        i2c_set_clientdata(client, NULL);
+        kfree(ts);
+
+        return 0;
+}
+
+static const struct i2c_device_id ad7879_id[] = {
+        { "ad7879", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, ad7879_id);
+
+static struct i2c_driver ad7879_driver = {
+        .driver = {
+                .name   = "ad7879",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = ad7879_probe,
+        .remove         = __devexit_p(ad7879_remove),
+        .suspend        = ad7879_suspend,
+        .resume         = ad7879_resume,
+        .id_table       = ad7879_id,
+};
+
+static int __init ad7879_init(void)
+{
+        return i2c_add_driver(&ad7879_driver);
+}
+module_init(ad7879_init);
+
+static void __exit ad7879_exit(void)
+{
+        i2c_del_driver(&ad7879_driver);
+}
+module_exit(ad7879_exit);
+#endif
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7879(-1) touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index 1d11e2be9ef8..dfa6a84ab50a 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -162,6 +162,7 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
                 input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
                 input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
                 input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+                input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
                 input_sync(wm->input_dev);
                 reads++;
         } while (reads < cinfo[sp_idx].reads);
@@ -245,7 +246,7 @@ static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
         if (enable)
                 enable_irq(wm->pen_irq);
         else
-                disable_irq(wm->pen_irq);
+                disable_irq_nosync(wm->pen_irq);
 }
 
 static struct wm97xx_mach_ops mainstone_mach_ops = {
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 54986627def0..e868264fe799 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -151,12 +151,14 @@ static void ucb1400_ts_evt_add(struct input_dev *idev, u16 pressure, u16 x, u16
         input_report_abs(idev, ABS_X, x);
         input_report_abs(idev, ABS_Y, y);
         input_report_abs(idev, ABS_PRESSURE, pressure);
+        input_report_key(idev, BTN_TOUCH, 1);
         input_sync(idev);
 }
 
 static void ucb1400_ts_event_release(struct input_dev *idev)
 {
         input_report_abs(idev, ABS_PRESSURE, 0);
+        input_report_key(idev, BTN_TOUCH, 0);
         input_sync(idev);
 }
 
@@ -377,7 +379,8 @@ static int ucb1400_ts_probe(struct platform_device *dev)
         ucb->ts_idev->id.product        = ucb->id;
         ucb->ts_idev->open              = ucb1400_ts_open;
         ucb->ts_idev->close             = ucb1400_ts_close;
-        ucb->ts_idev->evbit[0]          = BIT_MASK(EV_ABS);
+        ucb->ts_idev->evbit[0]          = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+        ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
         ucb1400_adc_enable(ucb->ac97);
         x_res = ucb1400_ts_read_xres(ucb);
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index d15aa11d7056..cec480bffe38 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -409,6 +409,7 @@ static int wm97xx_read_samples(struct wm97xx *wm)
                         wm->pen_is_down = 0;
                         dev_dbg(wm->dev, "pen up\n");
                         input_report_abs(wm->input_dev, ABS_PRESSURE, 0);
+                        input_report_key(wm->input_dev, BTN_TOUCH, 0);
                         input_sync(wm->input_dev);
                 } else if (!(rc & RC_AGAIN)) {
                         /* We need high frequency updates only while
@@ -433,6 +434,7 @@ static int wm97xx_read_samples(struct wm97xx *wm)
                 input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff);
                 input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff);
                 input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff);
+                input_report_key(wm->input_dev, BTN_TOUCH, 1);
                 input_sync(wm->input_dev);
                 wm->pen_is_down = 1;
                 wm->ts_reader_interval = wm->ts_reader_min_interval;
@@ -628,18 +630,21 @@ static int wm97xx_probe(struct device *dev)
         wm->input_dev->phys = "wm97xx";
         wm->input_dev->open = wm97xx_ts_input_open;
         wm->input_dev->close = wm97xx_ts_input_close;
-        set_bit(EV_ABS, wm->input_dev->evbit);
-        set_bit(ABS_X, wm->input_dev->absbit);
-        set_bit(ABS_Y, wm->input_dev->absbit);
-        set_bit(ABS_PRESSURE, wm->input_dev->absbit);
+
+        __set_bit(EV_ABS, wm->input_dev->evbit);
+        __set_bit(EV_KEY, wm->input_dev->evbit);
+        __set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
         input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
                              abs_x[2], 0);
         input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
                              abs_y[2], 0);
         input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
                              abs_p[2], 0);
+
         input_set_drvdata(wm->input_dev, wm);
         wm->input_dev->dev.parent = dev;
+
         ret = input_register_device(wm->input_dev);
         if (ret < 0)
                 goto dev_alloc_err;
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
new file mode 100644
index 000000000000..41e4359c277c
--- /dev/null
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -0,0 +1,240 @@
+/*
+ * zylonite-wm97xx.c  --  Zylonite Continuous Touch screen driver
+ *
+ * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ *                   Andrew Zabolotny <zap@homelink.ru>
+ *
+ *  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.
+ *
+ * Notes:
+ *     This is a wm97xx extended touch driver supporting interrupt driven
+ *     and continuous operation on Marvell Zylonite development systems
+ *     (which have a WM9713 on board).
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/wm97xx.h>
+
+#include <mach/hardware.h>
+#include <mach/mfp.h>
+#include <mach/regs-ac97.h>
+
+struct continuous {
+        u16 id;    /* codec id */
+        u8 code;   /* continuous code */
+        u8 reads;  /* number of coord reads per read cycle */
+        u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+        { WM9713_ID2, 0, WM_READS(94),  94  },
+        { WM9713_ID2, 1, WM_READS(120), 120 },
+        { WM9713_ID2, 2, WM_READS(154), 154 },
+        { WM9713_ID2, 3, WM_READS(188), 188 },
+};
+
+/* continuous speed index */
+static int sp_idx;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 200;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+
+/* flush AC97 slot 5 FIFO machines */
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+        int i;
+
+        msleep(1);
+
+        for (i = 0; i < 16; i++)
+                MODR;
+}
+
+static int wm97xx_acc_pen_down(struct wm97xx *wm)
+{
+        u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
+        int reads = 0;
+        static u16 last, tries;
+
+        /* When the AC97 queue has been drained we need to allow time
+         * to buffer up samples otherwise we end up spinning polling
+         * for samples.  The controller can't have a suitably low
+         * threashold set to use the notifications it gives.
+         */
+        msleep(1);
+
+        if (tries > 5) {
+                tries = 0;
+                return RC_PENUP;
+        }
+
+        x = MODR;
+        if (x == last) {
+                tries++;
+                return RC_AGAIN;
+        }
+        last = x;
+        do {
+                if (reads)
+                        x = MODR;
+                y = MODR;
+                if (pressure)
+                        p = MODR;
+
+                /* are samples valid */
+                if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
+                    (y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
+                    (p & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_PRES)
+                        goto up;
+
+                /* coordinate is good */
+                tries = 0;
+                input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
+                input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
+                input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+                input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
+                input_sync(wm->input_dev);
+                reads++;
+        } while (reads < cinfo[sp_idx].reads);
+up:
+        return RC_PENDOWN | RC_AGAIN;
+}
+
+static int wm97xx_acc_startup(struct wm97xx *wm)
+{
+        int idx;
+
+        /* check we have a codec */
+        if (wm->ac97 == NULL)
+                return -ENODEV;
+
+        /* Go you big red fire engine */
+        for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+                if (wm->id != cinfo[idx].id)
+                        continue;
+                sp_idx = idx;
+                if (cont_rate <= cinfo[idx].speed)
+                        break;
+        }
+        wm->acc_rate = cinfo[sp_idx].code;
+        wm->acc_slot = ac97_touch_slot;
+        dev_info(wm->dev,
+                 "zylonite accelerated touchscreen driver, %d samples/sec\n",
+                 cinfo[sp_idx].speed);
+
+        return 0;
+}
+
+static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+        if (enable)
+                enable_irq(wm->pen_irq);
+        else
+                disable_irq_nosync(wm->pen_irq);
+}
+
+static struct wm97xx_mach_ops zylonite_mach_ops = {
+        .acc_enabled    = 1,
+        .acc_pen_up     = wm97xx_acc_pen_up,
+        .acc_pen_down   = wm97xx_acc_pen_down,
+        .acc_startup    = wm97xx_acc_startup,
+        .irq_enable     = wm97xx_irq_enable,
+        .irq_gpio       = WM97XX_GPIO_2,
+};
+
+static int zylonite_wm97xx_probe(struct platform_device *pdev)
+{
+        struct wm97xx *wm = platform_get_drvdata(pdev);
+        int gpio_touch_irq;
+
+        if (cpu_is_pxa320())
+                gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15);
+        else
+                gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
+
+        wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
+        set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
+
+        wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+                           WM97XX_GPIO_POL_HIGH,
+                           WM97XX_GPIO_STICKY,
+                           WM97XX_GPIO_WAKE);
+        wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
+                           WM97XX_GPIO_POL_HIGH,
+                           WM97XX_GPIO_NOTSTICKY,
+                           WM97XX_GPIO_NOWAKE);
+
+        return wm97xx_register_mach_ops(wm, &zylonite_mach_ops);
+}
+
+static int zylonite_wm97xx_remove(struct platform_device *pdev)
+{
+        struct wm97xx *wm = platform_get_drvdata(pdev);
+
+        wm97xx_unregister_mach_ops(wm);
+
+        return 0;
+}
+
+static struct platform_driver zylonite_wm97xx_driver = {
+        .probe  = zylonite_wm97xx_probe,
+        .remove = zylonite_wm97xx_remove,
+        .driver = {
+                .name   = "wm97xx-touch",
+        },
+};
+
+static int __init zylonite_wm97xx_init(void)
+{
+        return platform_driver_register(&zylonite_wm97xx_driver);
+}
+
+static void __exit zylonite_wm97xx_exit(void)
+{
+        platform_driver_unregister(&zylonite_wm97xx_driver);
+}
+
+module_init(zylonite_wm97xx_init);
+module_exit(zylonite_wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 102ef4a14c5f..d2109054de85 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -82,7 +82,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
         if (!gpio_is_valid(template->gpio)) {
                 printk(KERN_INFO "Skipping unavilable LED gpio %d (%s)\n", 
                                 template->gpio, template->name);
-                return;
+                return 0;
         }
 
         ret = gpio_request(template->gpio, template->name);
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index d184dfab9631..db39f4a52f53 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -278,7 +278,7 @@ static ssize_t at24_bin_read(struct kobject *kobj, struct bin_attribute *attr,
  * We only use page mode writes; the alternative is sloooow. This routine
  * writes at most one page.
  */
-static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
+static ssize_t at24_eeprom_write(struct at24_data *at24, const char *buf,
                 unsigned offset, size_t count)
 {
         struct i2c_client *client;
@@ -347,8 +347,8 @@ static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
         return -ETIMEDOUT;
 }
 
-static ssize_t at24_write(struct at24_data *at24,
-                char *buf, loff_t off, size_t count)
+static ssize_t at24_write(struct at24_data *at24, const char *buf, loff_t off,
+                          size_t count)
 {
         ssize_t retval = 0;
 
@@ -406,7 +406,7 @@ static ssize_t at24_macc_read(struct memory_accessor *macc, char *buf,
         return at24_read(at24, buf, offset, count);
 }
 
-static ssize_t at24_macc_write(struct memory_accessor *macc, char *buf,
+static ssize_t at24_macc_write(struct memory_accessor *macc, const char *buf,
                           off_t offset, size_t count)
 {
         struct at24_data *at24 = container_of(macc, struct at24_data, macc);
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 6bc0dac5c1e8..b34cb5f79eea 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -140,7 +140,8 @@ at25_bin_read(struct kobject *kobj, struct bin_attribute *bin_attr,
 
 
 static ssize_t
-at25_ee_write(struct at25_data *at25, char *buf, loff_t off, size_t count)
+at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
+              size_t count)
 {
         ssize_t                 status = 0;
         unsigned                written = 0;
@@ -276,7 +277,7 @@ static ssize_t at25_mem_read(struct memory_accessor *mem, char *buf,
         return at25_ee_read(at25, buf, offset, count);
 }
 
-static ssize_t at25_mem_write(struct memory_accessor *mem, char *buf,
+static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
                           off_t offset, size_t count)
 {
         struct at25_data *at25 = container_of(mem, struct at25_data, mem);
diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
index 114444cfd496..b94d5f767703 100644
--- a/drivers/misc/sgi-xp/xpc.h
+++ b/drivers/misc/sgi-xp/xpc.h
@@ -90,18 +90,21 @@ struct xpc_rsvd_page {
         short max_npartitions;  /* value of XPC_MAX_PARTITIONS */
         u8 version;
         u8 pad1[3];             /* align to next u64 in 1st 64-byte cacheline */
+        unsigned long ts_jiffies; /* timestamp when rsvd pg was setup by XPC */
         union {
-                unsigned long vars_pa;  /* phys address of struct xpc_vars */
-                unsigned long activate_gru_mq_desc_gpa; /* phys addr of */
-                                                        /* activate mq's */
-                                                        /* gru mq descriptor */
+                struct {
+                        unsigned long vars_pa;  /* phys addr */
+                } sn2;
+                struct {
+                        unsigned long heartbeat_gpa; /* phys addr */
+                        unsigned long activate_gru_mq_desc_gpa; /* phys addr */
+                } uv;
         } sn;
-        unsigned long ts_jiffies; /* timestamp when rsvd pg was setup by XPC */
-        u64 pad2[10];           /* align to last u64 in 2nd 64-byte cacheline */
+        u64 pad2[9];            /* align to last u64 in 2nd 64-byte cacheline */
         u64 SAL_nasids_size;    /* SAL: size of each nasid mask in bytes */
 };
 
-#define XPC_RP_VERSION _XPC_VERSION(2, 0) /* version 2.0 of the reserved page */
+#define XPC_RP_VERSION _XPC_VERSION(3, 0) /* version 3.0 of the reserved page */
 
 /*
  * Define the structures by which XPC variables can be exported to other
@@ -182,6 +185,17 @@ struct xpc_vars_part_sn2 {
                                  (XPC_RP_MACH_NASIDS(_rp) + \
                                   xpc_nasid_mask_nlongs))
 
+
+/*
+ * The following structure describes the partition's heartbeat info which
+ * will be periodically read by other partitions to determine whether this
+ * XPC is still 'alive'.
+ */
+struct xpc_heartbeat_uv {
+        unsigned long value;
+        unsigned long offline;  /* if 0, heartbeat should be changing */
+};
+
 /*
  * Info pertinent to a GRU message queue using a watch list for irq generation.
  */
@@ -198,7 +212,7 @@ struct xpc_gru_mq_uv {
 
 /*
  * The activate_mq is used to send/receive GRU messages that affect XPC's
- * heartbeat, partition active state, and channel state. This is UV only.
+ * partition active state and channel state. This is uv only.
  */
 struct xpc_activate_mq_msghdr_uv {
         unsigned int gru_msg_hdr; /* FOR GRU INTERNAL USE ONLY */
@@ -210,33 +224,27 @@ struct xpc_activate_mq_msghdr_uv {
 
 /* activate_mq defined message types */
 #define XPC_ACTIVATE_MQ_MSG_SYNC_ACT_STATE_UV           0
-#define XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV            1
-#define XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV        2
-#define XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV         3
 
-#define XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV             4
-#define XPC_ACTIVATE_MQ_MSG_DEACTIVATE_REQ_UV           5
+#define XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV             1
+#define XPC_ACTIVATE_MQ_MSG_DEACTIVATE_REQ_UV           2
 
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREQUEST_UV       6
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREPLY_UV         7
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREQUEST_UV        8
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREPLY_UV          9
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREQUEST_UV       3
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREPLY_UV         4
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREQUEST_UV        5
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREPLY_UV          6
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV       7
 
-#define XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV             10
-#define XPC_ACTIVATE_MQ_MSG_MARK_DISENGAGED_UV          11
+#define XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV             8
+#define XPC_ACTIVATE_MQ_MSG_MARK_DISENGAGED_UV          9
 
 struct xpc_activate_mq_msg_uv {
         struct xpc_activate_mq_msghdr_uv hdr;
 };
 
-struct xpc_activate_mq_msg_heartbeat_req_uv {
-        struct xpc_activate_mq_msghdr_uv hdr;
-        u64 heartbeat;
-};
-
 struct xpc_activate_mq_msg_activate_req_uv {
         struct xpc_activate_mq_msghdr_uv hdr;
         unsigned long rp_gpa;
+        unsigned long heartbeat_gpa;
         unsigned long activate_gru_mq_desc_gpa;
 };
 
@@ -271,6 +279,11 @@ struct xpc_activate_mq_msg_chctl_openreply_uv {
         unsigned long notify_gru_mq_desc_gpa;
 };
 
+struct xpc_activate_mq_msg_chctl_opencomplete_uv {
+        struct xpc_activate_mq_msghdr_uv hdr;
+        short ch_number;
+};
+
 /*
  * Functions registered by add_timer() or called by kernel_thread() only
  * allow for a single 64-bit argument. The following macros can be used to
@@ -576,30 +589,32 @@ struct xpc_channel {
 
 #define XPC_C_WASCONNECTED      0x00000001      /* channel was connected */
 
-#define XPC_C_ROPENREPLY        0x00000002      /* remote open channel reply */
-#define XPC_C_OPENREPLY         0x00000004      /* local open channel reply */
-#define XPC_C_ROPENREQUEST      0x00000008     /* remote open channel request */
-#define XPC_C_OPENREQUEST       0x00000010      /* local open channel request */
+#define XPC_C_ROPENCOMPLETE     0x00000002    /* remote open channel complete */
+#define XPC_C_OPENCOMPLETE      0x00000004     /* local open channel complete */
+#define XPC_C_ROPENREPLY        0x00000008      /* remote open channel reply */
+#define XPC_C_OPENREPLY         0x00000010      /* local open channel reply */
+#define XPC_C_ROPENREQUEST      0x00000020     /* remote open channel request */
+#define XPC_C_OPENREQUEST       0x00000040      /* local open channel request */
 
-#define XPC_C_SETUP             0x00000020 /* channel's msgqueues are alloc'd */
-#define XPC_C_CONNECTEDCALLOUT  0x00000040     /* connected callout initiated */
+#define XPC_C_SETUP             0x00000080 /* channel's msgqueues are alloc'd */
+#define XPC_C_CONNECTEDCALLOUT  0x00000100     /* connected callout initiated */
 #define XPC_C_CONNECTEDCALLOUT_MADE \
-                                0x00000080     /* connected callout completed */
-#define XPC_C_CONNECTED         0x00000100      /* local channel is connected */
-#define XPC_C_CONNECTING        0x00000200      /* channel is being connected */
+                                0x00000200     /* connected callout completed */
+#define XPC_C_CONNECTED         0x00000400      /* local channel is connected */
+#define XPC_C_CONNECTING        0x00000800      /* channel is being connected */
 
-#define XPC_C_RCLOSEREPLY       0x00000400      /* remote close channel reply */
-#define XPC_C_CLOSEREPLY        0x00000800      /* local close channel reply */
-#define XPC_C_RCLOSEREQUEST     0x00001000    /* remote close channel request */
-#define XPC_C_CLOSEREQUEST      0x00002000     /* local close channel request */
+#define XPC_C_RCLOSEREPLY       0x00001000      /* remote close channel reply */
+#define XPC_C_CLOSEREPLY        0x00002000      /* local close channel reply */
+#define XPC_C_RCLOSEREQUEST     0x00004000    /* remote close channel request */
+#define XPC_C_CLOSEREQUEST      0x00008000     /* local close channel request */
 
-#define XPC_C_DISCONNECTED      0x00004000      /* channel is disconnected */
-#define XPC_C_DISCONNECTING     0x00008000   /* channel is being disconnected */
+#define XPC_C_DISCONNECTED      0x00010000      /* channel is disconnected */
+#define XPC_C_DISCONNECTING     0x00020000   /* channel is being disconnected */
 #define XPC_C_DISCONNECTINGCALLOUT \
-                                0x00010000 /* disconnecting callout initiated */
+                                0x00040000 /* disconnecting callout initiated */
 #define XPC_C_DISCONNECTINGCALLOUT_MADE \
-                                0x00020000 /* disconnecting callout completed */
-#define XPC_C_WDISCONNECT       0x00040000  /* waiting for channel disconnect */
+                                0x00080000 /* disconnecting callout completed */
+#define XPC_C_WDISCONNECT       0x00100000  /* waiting for channel disconnect */
 
 /*
  * The channel control flags (chctl) union consists of a 64-bit variable which
@@ -618,11 +633,13 @@ union xpc_channel_ctl_flags {
 #define XPC_CHCTL_CLOSEREPLY    0x02
 #define XPC_CHCTL_OPENREQUEST   0x04
 #define XPC_CHCTL_OPENREPLY     0x08
-#define XPC_CHCTL_MSGREQUEST    0x10
+#define XPC_CHCTL_OPENCOMPLETE  0x10
+#define XPC_CHCTL_MSGREQUEST    0x20
 
 #define XPC_OPENCLOSE_CHCTL_FLAGS \
                         (XPC_CHCTL_CLOSEREQUEST | XPC_CHCTL_CLOSEREPLY | \
-                         XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY)
+                         XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY | \
+                         XPC_CHCTL_OPENCOMPLETE)
 #define XPC_MSG_CHCTL_FLAGS     XPC_CHCTL_MSGREQUEST
 
 static inline int
@@ -687,6 +704,9 @@ struct xpc_partition_sn2 {
 };
 
 struct xpc_partition_uv {
+        unsigned long heartbeat_gpa; /* phys addr of partition's heartbeat */
+        struct xpc_heartbeat_uv cached_heartbeat; /* cached copy of */
+                                                  /* partition's heartbeat */
         unsigned long activate_gru_mq_desc_gpa; /* phys addr of parititon's */
                                                 /* activate mq's gru mq */
                                                 /* descriptor */
@@ -698,14 +718,12 @@ struct xpc_partition_uv {
         u8 remote_act_state;    /* remote partition's act_state */
         u8 act_state_req;       /* act_state request from remote partition */
         enum xp_retval reason;  /* reason for deactivate act_state request */
-        u64 heartbeat;          /* incremented by remote partition */
 };
 
 /* struct xpc_partition_uv flags */
 
-#define XPC_P_HEARTBEAT_OFFLINE_UV              0x00000001
+#define XPC_P_CACHED_ACTIVATE_GRU_MQ_DESC_UV    0x00000001
 #define XPC_P_ENGAGED_UV                        0x00000002
-#define XPC_P_CACHED_ACTIVATE_GRU_MQ_DESC_UV    0x00000004
 
 /* struct xpc_partition_uv act_state change requests */
 
@@ -762,6 +780,62 @@ struct xpc_partition {
 
 } ____cacheline_aligned;
 
+struct xpc_arch_operations {
+        int (*setup_partitions) (void);
+        void (*teardown_partitions) (void);
+        void (*process_activate_IRQ_rcvd) (void);
+        enum xp_retval (*get_partition_rsvd_page_pa)
+                (void *, u64 *, unsigned long *, size_t *);
+        int (*setup_rsvd_page) (struct xpc_rsvd_page *);
+
+        void (*allow_hb) (short);
+        void (*disallow_hb) (short);
+        void (*disallow_all_hbs) (void);
+        void (*increment_heartbeat) (void);
+        void (*offline_heartbeat) (void);
+        void (*online_heartbeat) (void);
+        void (*heartbeat_init) (void);
+        void (*heartbeat_exit) (void);
+        enum xp_retval (*get_remote_heartbeat) (struct xpc_partition *);
+
+        void (*request_partition_activation) (struct xpc_rsvd_page *,
+                                                 unsigned long, int);
+        void (*request_partition_reactivation) (struct xpc_partition *);
+        void (*request_partition_deactivation) (struct xpc_partition *);
+        void (*cancel_partition_deactivation_request) (struct xpc_partition *);
+        enum xp_retval (*setup_ch_structures) (struct xpc_partition *);
+        void (*teardown_ch_structures) (struct xpc_partition *);
+
+        enum xp_retval (*make_first_contact) (struct xpc_partition *);
+
+        u64 (*get_chctl_all_flags) (struct xpc_partition *);
+        void (*send_chctl_closerequest) (struct xpc_channel *, unsigned long *);
+        void (*send_chctl_closereply) (struct xpc_channel *, unsigned long *);
+        void (*send_chctl_openrequest) (struct xpc_channel *, unsigned long *);
+        void (*send_chctl_openreply) (struct xpc_channel *, unsigned long *);
+        void (*send_chctl_opencomplete) (struct xpc_channel *, unsigned long *);
+        void (*process_msg_chctl_flags) (struct xpc_partition *, int);
+
+        enum xp_retval (*save_remote_msgqueue_pa) (struct xpc_channel *,
+                                                      unsigned long);
+
+        enum xp_retval (*setup_msg_structures) (struct xpc_channel *);
+        void (*teardown_msg_structures) (struct xpc_channel *);
+
+        void (*indicate_partition_engaged) (struct xpc_partition *);
+        void (*indicate_partition_disengaged) (struct xpc_partition *);
+        void (*assume_partition_disengaged) (short);
+        int (*partition_engaged) (short);
+        int (*any_partition_engaged) (void);
+
+        int (*n_of_deliverable_payloads) (struct xpc_channel *);
+        enum xp_retval (*send_payload) (struct xpc_channel *, u32, void *,
+                                           u16, u8, xpc_notify_func, void *);
+        void *(*get_deliverable_payload) (struct xpc_channel *);
+        void (*received_payload) (struct xpc_channel *, void *);
+        void (*notify_senders_of_disconnect) (struct xpc_channel *);
+};
+
 /* struct xpc_partition act_state values (for XPC HB) */
 
 #define XPC_P_AS_INACTIVE       0x00    /* partition is not active */
@@ -802,67 +876,17 @@ extern struct xpc_registration xpc_registrations[];
 /* found in xpc_main.c */
 extern struct device *xpc_part;
 extern struct device *xpc_chan;
+extern struct xpc_arch_operations xpc_arch_ops;
 extern int xpc_disengage_timelimit;
 extern int xpc_disengage_timedout;
 extern int xpc_activate_IRQ_rcvd;
 extern spinlock_t xpc_activate_IRQ_rcvd_lock;
 extern wait_queue_head_t xpc_activate_IRQ_wq;
-extern void *xpc_heartbeating_to_mask;
 extern void *xpc_kzalloc_cacheline_aligned(size_t, gfp_t, void **);
 extern void xpc_activate_partition(struct xpc_partition *);
 extern void xpc_activate_kthreads(struct xpc_channel *, int);
 extern void xpc_create_kthreads(struct xpc_channel *, int, int);
 extern void xpc_disconnect_wait(int);
-extern int (*xpc_setup_partitions_sn) (void);
-extern void (*xpc_teardown_partitions_sn) (void);
-extern enum xp_retval (*xpc_get_partition_rsvd_page_pa) (void *, u64 *,
-                                                         unsigned long *,
-                                                         size_t *);
-extern int (*xpc_setup_rsvd_page_sn) (struct xpc_rsvd_page *);
-extern void (*xpc_heartbeat_init) (void);
-extern void (*xpc_heartbeat_exit) (void);
-extern void (*xpc_increment_heartbeat) (void);
-extern void (*xpc_offline_heartbeat) (void);
-extern void (*xpc_online_heartbeat) (void);
-extern enum xp_retval (*xpc_get_remote_heartbeat) (struct xpc_partition *);
-extern enum xp_retval (*xpc_make_first_contact) (struct xpc_partition *);
-extern u64 (*xpc_get_chctl_all_flags) (struct xpc_partition *);
-extern enum xp_retval (*xpc_setup_msg_structures) (struct xpc_channel *);
-extern void (*xpc_teardown_msg_structures) (struct xpc_channel *);
-extern void (*xpc_notify_senders_of_disconnect) (struct xpc_channel *);
-extern void (*xpc_process_msg_chctl_flags) (struct xpc_partition *, int);
-extern int (*xpc_n_of_deliverable_payloads) (struct xpc_channel *);
-extern void *(*xpc_get_deliverable_payload) (struct xpc_channel *);
-extern void (*xpc_request_partition_activation) (struct xpc_rsvd_page *,
-                                                 unsigned long, int);
-extern void (*xpc_request_partition_reactivation) (struct xpc_partition *);
-extern void (*xpc_request_partition_deactivation) (struct xpc_partition *);
-extern void (*xpc_cancel_partition_deactivation_request) (
-                                                        struct xpc_partition *);
-extern void (*xpc_process_activate_IRQ_rcvd) (void);
-extern enum xp_retval (*xpc_setup_ch_structures_sn) (struct xpc_partition *);
-extern void (*xpc_teardown_ch_structures_sn) (struct xpc_partition *);
-
-extern void (*xpc_indicate_partition_engaged) (struct xpc_partition *);
-extern int (*xpc_partition_engaged) (short);
-extern int (*xpc_any_partition_engaged) (void);
-extern void (*xpc_indicate_partition_disengaged) (struct xpc_partition *);
-extern void (*xpc_assume_partition_disengaged) (short);
-
-extern void (*xpc_send_chctl_closerequest) (struct xpc_channel *,
-                                            unsigned long *);
-extern void (*xpc_send_chctl_closereply) (struct xpc_channel *,
-                                          unsigned long *);
-extern void (*xpc_send_chctl_openrequest) (struct xpc_channel *,
-                                           unsigned long *);
-extern void (*xpc_send_chctl_openreply) (struct xpc_channel *, unsigned long *);
-
-extern enum xp_retval (*xpc_save_remote_msgqueue_pa) (struct xpc_channel *,
-                                                      unsigned long);
-
-extern enum xp_retval (*xpc_send_payload) (struct xpc_channel *, u32, void *,
-                                           u16, u8, xpc_notify_func, void *);
-extern void (*xpc_received_payload) (struct xpc_channel *, void *);
 
 /* found in xpc_sn2.c */
 extern int xpc_init_sn2(void);
@@ -909,40 +933,6 @@ extern void xpc_disconnect_channel(const int, struct xpc_channel *,
 extern void xpc_disconnect_callout(struct xpc_channel *, enum xp_retval);
 extern void xpc_partition_going_down(struct xpc_partition *, enum xp_retval);
 
-static inline int
-xpc_hb_allowed(short partid, void *heartbeating_to_mask)
-{
-        return test_bit(partid, heartbeating_to_mask);
-}
-
-static inline int
-xpc_any_hbs_allowed(void)
-{
-        DBUG_ON(xpc_heartbeating_to_mask == NULL);
-        return !bitmap_empty(xpc_heartbeating_to_mask, xp_max_npartitions);
-}
-
-static inline void
-xpc_allow_hb(short partid)
-{
-        DBUG_ON(xpc_heartbeating_to_mask == NULL);
-        set_bit(partid, xpc_heartbeating_to_mask);
-}
-
-static inline void
-xpc_disallow_hb(short partid)
-{
-        DBUG_ON(xpc_heartbeating_to_mask == NULL);
-        clear_bit(partid, xpc_heartbeating_to_mask);
-}
-
-static inline void
-xpc_disallow_all_hbs(void)
-{
-        DBUG_ON(xpc_heartbeating_to_mask == NULL);
-        bitmap_zero(xpc_heartbeating_to_mask, xp_max_npartitions);
-}
-
 static inline void
 xpc_wakeup_channel_mgr(struct xpc_partition *part)
 {
diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
index 99a2534c38a1..652593fc486d 100644
--- a/drivers/misc/sgi-xp/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (c) 2004-2008 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2004-2009 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
 /*
@@ -39,34 +39,38 @@ xpc_process_connect(struct xpc_channel *ch, unsigned long *irq_flags)
 
         if (!(ch->flags & XPC_C_SETUP)) {
                 spin_unlock_irqrestore(&ch->lock, *irq_flags);
-                ret = xpc_setup_msg_structures(ch);
+                ret = xpc_arch_ops.setup_msg_structures(ch);
                 spin_lock_irqsave(&ch->lock, *irq_flags);
 
                 if (ret != xpSuccess)
                         XPC_DISCONNECT_CHANNEL(ch, ret, irq_flags);
+                else
+                        ch->flags |= XPC_C_SETUP;
 
-                ch->flags |= XPC_C_SETUP;
-
-                if (ch->flags & (XPC_C_CONNECTED | XPC_C_DISCONNECTING))
+                if (ch->flags & XPC_C_DISCONNECTING)
                         return;
         }
 
         if (!(ch->flags & XPC_C_OPENREPLY)) {
                 ch->flags |= XPC_C_OPENREPLY;
-                xpc_send_chctl_openreply(ch, irq_flags);
+                xpc_arch_ops.send_chctl_openreply(ch, irq_flags);
         }
 
         if (!(ch->flags & XPC_C_ROPENREPLY))
                 return;
 
-        ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP);    /* clear all else */
+        if (!(ch->flags & XPC_C_OPENCOMPLETE)) {
+                ch->flags |= (XPC_C_OPENCOMPLETE | XPC_C_CONNECTED);
+                xpc_arch_ops.send_chctl_opencomplete(ch, irq_flags);
+        }
+
+        if (!(ch->flags & XPC_C_ROPENCOMPLETE))
+                return;
 
         dev_info(xpc_chan, "channel %d to partition %d connected\n",
                  ch->number, ch->partid);
 
-        spin_unlock_irqrestore(&ch->lock, *irq_flags);
-        xpc_create_kthreads(ch, 1, 0);
-        spin_lock_irqsave(&ch->lock, *irq_flags);
+        ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP);    /* clear all else */
 }
 
 /*
@@ -96,7 +100,7 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
 
         if (part->act_state == XPC_P_AS_DEACTIVATING) {
                 /* can't proceed until the other side disengages from us */
-                if (xpc_partition_engaged(ch->partid))
+                if (xpc_arch_ops.partition_engaged(ch->partid))
                         return;
 
         } else {
@@ -108,7 +112,7 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
 
                 if (!(ch->flags & XPC_C_CLOSEREPLY)) {
                         ch->flags |= XPC_C_CLOSEREPLY;
-                        xpc_send_chctl_closereply(ch, irq_flags);
+                        xpc_arch_ops.send_chctl_closereply(ch, irq_flags);
                 }
 
                 if (!(ch->flags & XPC_C_RCLOSEREPLY))
@@ -118,7 +122,7 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
         /* wake those waiting for notify completion */
         if (atomic_read(&ch->n_to_notify) > 0) {
                 /* we do callout while holding ch->lock, callout can't block */
-                xpc_notify_senders_of_disconnect(ch);
+                xpc_arch_ops.notify_senders_of_disconnect(ch);
         }
 
         /* both sides are disconnected now */
@@ -132,7 +136,7 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
         DBUG_ON(atomic_read(&ch->n_to_notify) != 0);
 
         /* it's now safe to free the channel's message queues */
-        xpc_teardown_msg_structures(ch);
+        xpc_arch_ops.teardown_msg_structures(ch);
 
         ch->func = NULL;
         ch->key = NULL;
@@ -144,8 +148,9 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
 
         /*
          * Mark the channel disconnected and clear all other flags, including
-         * XPC_C_SETUP (because of call to xpc_teardown_msg_structures()) but
-         * not including XPC_C_WDISCONNECT (if it was set).
+         * XPC_C_SETUP (because of call to
+         * xpc_arch_ops.teardown_msg_structures()) but not including
+         * XPC_C_WDISCONNECT (if it was set).
          */
         ch->flags = (XPC_C_DISCONNECTED | (ch->flags & XPC_C_WDISCONNECT));
 
@@ -184,6 +189,7 @@ xpc_process_openclose_chctl_flags(struct xpc_partition *part, int ch_number,
         struct xpc_channel *ch = &part->channels[ch_number];
         enum xp_retval reason;
         enum xp_retval ret;
+        int create_kthread = 0;
 
         spin_lock_irqsave(&ch->lock, irq_flags);
 
@@ -196,8 +202,7 @@ again:
                  * has had a chance to see that the channel is disconnected.
                  */
                 ch->delayed_chctl_flags |= chctl_flags;
-                spin_unlock_irqrestore(&ch->lock, irq_flags);
-                return;
+                goto out;
         }
 
         if (chctl_flags & XPC_CHCTL_CLOSEREQUEST) {
@@ -239,8 +244,7 @@ again:
                                             XPC_CHCTL_CLOSEREQUEST;
                                         spin_unlock(&part->chctl_lock);
                                 }
-                                spin_unlock_irqrestore(&ch->lock, irq_flags);
-                                return;
+                                goto out;
                         }
 
                         XPC_SET_REASON(ch, 0, 0);
@@ -250,7 +254,8 @@ again:
                         ch->flags |= (XPC_C_CONNECTING | XPC_C_ROPENREQUEST);
                 }
 
-                chctl_flags &= ~(XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY);
+                chctl_flags &= ~(XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY |
+                    XPC_CHCTL_OPENCOMPLETE);
 
                 /*
                  * The meaningful CLOSEREQUEST connection state fields are:
@@ -269,8 +274,7 @@ again:
                         XPC_DISCONNECT_CHANNEL(ch, reason, &irq_flags);
 
                         DBUG_ON(chctl_flags & XPC_CHCTL_CLOSEREPLY);
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
 
                 xpc_process_disconnect(ch, &irq_flags);
@@ -283,8 +287,7 @@ again:
 
                 if (ch->flags & XPC_C_DISCONNECTED) {
                         DBUG_ON(part->act_state != XPC_P_AS_DEACTIVATING);
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
 
                 DBUG_ON(!(ch->flags & XPC_C_CLOSEREQUEST));
@@ -299,8 +302,7 @@ again:
                                     XPC_CHCTL_CLOSEREPLY;
                                 spin_unlock(&part->chctl_lock);
                         }
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
 
                 ch->flags |= XPC_C_RCLOSEREPLY;
@@ -320,14 +322,12 @@ again:
 
                 if (part->act_state == XPC_P_AS_DEACTIVATING ||
                     (ch->flags & XPC_C_ROPENREQUEST)) {
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
 
                 if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_WDISCONNECT)) {
                         ch->delayed_chctl_flags |= XPC_CHCTL_OPENREQUEST;
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
                 DBUG_ON(!(ch->flags & (XPC_C_DISCONNECTED |
                                        XPC_C_OPENREQUEST)));
@@ -341,8 +341,7 @@ again:
                  */
                 if (args->entry_size == 0 || args->local_nentries == 0) {
                         /* assume OPENREQUEST was delayed by mistake */
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
 
                 ch->flags |= (XPC_C_ROPENREQUEST | XPC_C_CONNECTING);
@@ -352,8 +351,7 @@ again:
                         if (args->entry_size != ch->entry_size) {
                                 XPC_DISCONNECT_CHANNEL(ch, xpUnequalMsgSizes,
                                                        &irq_flags);
-                                spin_unlock_irqrestore(&ch->lock, irq_flags);
-                                return;
+                                goto out;
                         }
                 } else {
                         ch->entry_size = args->entry_size;
@@ -375,15 +373,13 @@ again:
                         args->local_msgqueue_pa, args->local_nentries,
                         args->remote_nentries, ch->partid, ch->number);
 
-                if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED)) {
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
-                }
+                if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED))
+                        goto out;
+
                 if (!(ch->flags & XPC_C_OPENREQUEST)) {
                         XPC_DISCONNECT_CHANNEL(ch, xpOpenCloseError,
                                                &irq_flags);
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
 
                 DBUG_ON(!(ch->flags & XPC_C_ROPENREQUEST));
@@ -400,11 +396,11 @@ again:
                 DBUG_ON(args->local_nentries == 0);
                 DBUG_ON(args->remote_nentries == 0);
 
-                ret = xpc_save_remote_msgqueue_pa(ch, args->local_msgqueue_pa);
+                ret = xpc_arch_ops.save_remote_msgqueue_pa(ch,
+                                                      args->local_msgqueue_pa);
                 if (ret != xpSuccess) {
                         XPC_DISCONNECT_CHANNEL(ch, ret, &irq_flags);
-                        spin_unlock_irqrestore(&ch->lock, irq_flags);
-                        return;
+                        goto out;
                 }
                 ch->flags |= XPC_C_ROPENREPLY;
 
@@ -430,7 +426,36 @@ again:
                 xpc_process_connect(ch, &irq_flags);
         }
 
+        if (chctl_flags & XPC_CHCTL_OPENCOMPLETE) {
+
+                dev_dbg(xpc_chan, "XPC_CHCTL_OPENCOMPLETE received from "
+                        "partid=%d, channel=%d\n", ch->partid, ch->number);
+
+                if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED))
+                        goto out;
+
+                if (!(ch->flags & XPC_C_OPENREQUEST) ||
+                    !(ch->flags & XPC_C_OPENREPLY)) {
+                        XPC_DISCONNECT_CHANNEL(ch, xpOpenCloseError,
+                                               &irq_flags);
+                        goto out;
+                }
+
+                DBUG_ON(!(ch->flags & XPC_C_ROPENREQUEST));
+                DBUG_ON(!(ch->flags & XPC_C_ROPENREPLY));
+                DBUG_ON(!(ch->flags & XPC_C_CONNECTED));
+
+                ch->flags |= XPC_C_ROPENCOMPLETE;
+
+                xpc_process_connect(ch, &irq_flags);
+                create_kthread = 1;
+        }
+
+out:
         spin_unlock_irqrestore(&ch->lock, irq_flags);
+
+        if (create_kthread)
+                xpc_create_kthreads(ch, 1, 0);
 }
 
 /*
@@ -508,7 +533,7 @@ xpc_connect_channel(struct xpc_channel *ch)
         /* initiate the connection */
 
         ch->flags |= (XPC_C_OPENREQUEST | XPC_C_CONNECTING);
-        xpc_send_chctl_openrequest(ch, &irq_flags);
+        xpc_arch_ops.send_chctl_openrequest(ch, &irq_flags);
 
         xpc_process_connect(ch, &irq_flags);
 
@@ -526,7 +551,7 @@ xpc_process_sent_chctl_flags(struct xpc_partition *part)
         int ch_number;
         u32 ch_flags;
 
-        chctl.all_flags = xpc_get_chctl_all_flags(part);
+        chctl.all_flags = xpc_arch_ops.get_chctl_all_flags(part);
 
         /*
          * Initiate channel connections for registered channels.
@@ -564,10 +589,6 @@ xpc_process_sent_chctl_flags(struct xpc_partition *part)
                         if (!(ch_flags & XPC_C_OPENREQUEST)) {
                                 DBUG_ON(ch_flags & XPC_C_SETUP);
                                 (void)xpc_connect_channel(ch);
-                        } else {
-                                spin_lock_irqsave(&ch->lock, irq_flags);
-                                xpc_process_connect(ch, &irq_flags);
-                                spin_unlock_irqrestore(&ch->lock, irq_flags);
                         }
                         continue;
                 }
@@ -579,7 +600,7 @@ xpc_process_sent_chctl_flags(struct xpc_partition *part)
                  */
 
                 if (chctl.flags[ch_number] & XPC_MSG_CHCTL_FLAGS)
-                        xpc_process_msg_chctl_flags(part, ch_number);
+                        xpc_arch_ops.process_msg_chctl_flags(part, ch_number);
         }
 }
 
@@ -755,7 +776,7 @@ xpc_disconnect_channel(const int line, struct xpc_channel *ch,
                        XPC_C_ROPENREQUEST | XPC_C_ROPENREPLY |
                        XPC_C_CONNECTING | XPC_C_CONNECTED);
 
-        xpc_send_chctl_closerequest(ch, irq_flags);
+        xpc_arch_ops.send_chctl_closerequest(ch, irq_flags);
 
         if (channel_was_connected)
                 ch->flags |= XPC_C_WASCONNECTED;
@@ -862,8 +883,8 @@ xpc_initiate_send(short partid, int ch_number, u32 flags, void *payload,
         DBUG_ON(payload == NULL);
 
         if (xpc_part_ref(part)) {
-                ret = xpc_send_payload(&part->channels[ch_number], flags,
-                                       payload, payload_size, 0, NULL, NULL);
+                ret = xpc_arch_ops.send_payload(&part->channels[ch_number],
+                                  flags, payload, payload_size, 0, NULL, NULL);
                 xpc_part_deref(part);
         }
 
@@ -914,9 +935,8 @@ xpc_initiate_send_notify(short partid, int ch_number, u32 flags, void *payload,
         DBUG_ON(func == NULL);
 
         if (xpc_part_ref(part)) {
-                ret = xpc_send_payload(&part->channels[ch_number], flags,
-                                       payload, payload_size, XPC_N_CALL, func,
-                                       key);
+                ret = xpc_arch_ops.send_payload(&part->channels[ch_number],
+                          flags, payload, payload_size, XPC_N_CALL, func, key);
                 xpc_part_deref(part);
         }
         return ret;
@@ -930,7 +950,7 @@ xpc_deliver_payload(struct xpc_channel *ch)
 {
         void *payload;
 
-        payload = xpc_get_deliverable_payload(ch);
+        payload = xpc_arch_ops.get_deliverable_payload(ch);
         if (payload != NULL) {
 
                 /*
@@ -984,7 +1004,7 @@ xpc_initiate_received(short partid, int ch_number, void *payload)
         DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
 
         ch = &part->channels[ch_number];
-        xpc_received_payload(ch, payload);
+        xpc_arch_ops.received_payload(ch, payload);
 
         /* the call to xpc_msgqueue_ref() was done by xpc_deliver_payload()  */
         xpc_msgqueue_deref(ch);
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 1ab9fda87fab..fd3688a3e23f 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (c) 2004-2008 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2004-2009 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
 /*
@@ -150,7 +150,6 @@ DECLARE_WAIT_QUEUE_HEAD(xpc_activate_IRQ_wq);
 
 static unsigned long xpc_hb_check_timeout;
 static struct timer_list xpc_hb_timer;
-void *xpc_heartbeating_to_mask;
 
 /* notification that the xpc_hb_checker thread has exited */
 static DECLARE_COMPLETION(xpc_hb_checker_exited);
@@ -170,62 +169,7 @@ static struct notifier_block xpc_die_notifier = {
         .notifier_call = xpc_system_die,
 };
 
-int (*xpc_setup_partitions_sn) (void);
-void (*xpc_teardown_partitions_sn) (void);
-enum xp_retval (*xpc_get_partition_rsvd_page_pa) (void *buf, u64 *cookie,
-                                                  unsigned long *rp_pa,
-                                                  size_t *len);
-int (*xpc_setup_rsvd_page_sn) (struct xpc_rsvd_page *rp);
-void (*xpc_heartbeat_init) (void);
-void (*xpc_heartbeat_exit) (void);
-void (*xpc_increment_heartbeat) (void);
-void (*xpc_offline_heartbeat) (void);
-void (*xpc_online_heartbeat) (void);
-enum xp_retval (*xpc_get_remote_heartbeat) (struct xpc_partition *part);
-
-enum xp_retval (*xpc_make_first_contact) (struct xpc_partition *part);
-void (*xpc_notify_senders_of_disconnect) (struct xpc_channel *ch);
-u64 (*xpc_get_chctl_all_flags) (struct xpc_partition *part);
-enum xp_retval (*xpc_setup_msg_structures) (struct xpc_channel *ch);
-void (*xpc_teardown_msg_structures) (struct xpc_channel *ch);
-void (*xpc_process_msg_chctl_flags) (struct xpc_partition *part, int ch_number);
-int (*xpc_n_of_deliverable_payloads) (struct xpc_channel *ch);
-void *(*xpc_get_deliverable_payload) (struct xpc_channel *ch);
-
-void (*xpc_request_partition_activation) (struct xpc_rsvd_page *remote_rp,
-                                          unsigned long remote_rp_pa,
-                                          int nasid);
-void (*xpc_request_partition_reactivation) (struct xpc_partition *part);
-void (*xpc_request_partition_deactivation) (struct xpc_partition *part);
-void (*xpc_cancel_partition_deactivation_request) (struct xpc_partition *part);
-
-void (*xpc_process_activate_IRQ_rcvd) (void);
-enum xp_retval (*xpc_setup_ch_structures_sn) (struct xpc_partition *part);
-void (*xpc_teardown_ch_structures_sn) (struct xpc_partition *part);
-
-void (*xpc_indicate_partition_engaged) (struct xpc_partition *part);
-int (*xpc_partition_engaged) (short partid);
-int (*xpc_any_partition_engaged) (void);
-void (*xpc_indicate_partition_disengaged) (struct xpc_partition *part);
-void (*xpc_assume_partition_disengaged) (short partid);
-
-void (*xpc_send_chctl_closerequest) (struct xpc_channel *ch,
-                                     unsigned long *irq_flags);
-void (*xpc_send_chctl_closereply) (struct xpc_channel *ch,
-                                   unsigned long *irq_flags);
-void (*xpc_send_chctl_openrequest) (struct xpc_channel *ch,
-                                    unsigned long *irq_flags);
-void (*xpc_send_chctl_openreply) (struct xpc_channel *ch,
-                                  unsigned long *irq_flags);
-
-enum xp_retval (*xpc_save_remote_msgqueue_pa) (struct xpc_channel *ch,
-                                               unsigned long msgqueue_pa);
-
-enum xp_retval (*xpc_send_payload) (struct xpc_channel *ch, u32 flags,
-                                    void *payload, u16 payload_size,
-                                    u8 notify_type, xpc_notify_func func,
-                                    void *key);
-void (*xpc_received_payload) (struct xpc_channel *ch, void *payload);
+struct xpc_arch_operations xpc_arch_ops;
 
 /*
  * Timer function to enforce the timelimit on the partition disengage.
@@ -240,7 +184,7 @@ xpc_timeout_partition_disengage(unsigned long data)
         (void)xpc_partition_disengaged(part);
 
         DBUG_ON(part->disengage_timeout != 0);
-        DBUG_ON(xpc_partition_engaged(XPC_PARTID(part)));
+        DBUG_ON(xpc_arch_ops.partition_engaged(XPC_PARTID(part)));
 }
 
 /*
@@ -251,7 +195,7 @@ xpc_timeout_partition_disengage(unsigned long data)
 static void
 xpc_hb_beater(unsigned long dummy)
 {
-        xpc_increment_heartbeat();
+        xpc_arch_ops.increment_heartbeat();
 
         if (time_is_before_eq_jiffies(xpc_hb_check_timeout))
                 wake_up_interruptible(&xpc_activate_IRQ_wq);
@@ -263,7 +207,7 @@ xpc_hb_beater(unsigned long dummy)
 static void
 xpc_start_hb_beater(void)
 {
-        xpc_heartbeat_init();
+        xpc_arch_ops.heartbeat_init();
         init_timer(&xpc_hb_timer);
         xpc_hb_timer.function = xpc_hb_beater;
         xpc_hb_beater(0);
@@ -273,7 +217,7 @@ static void
 xpc_stop_hb_beater(void)
 {
         del_timer_sync(&xpc_hb_timer);
-        xpc_heartbeat_exit();
+        xpc_arch_ops.heartbeat_exit();
 }
 
 /*
@@ -302,7 +246,7 @@ xpc_check_remote_hb(void)
                         continue;
                 }
 
-                ret = xpc_get_remote_heartbeat(part);
+                ret = xpc_arch_ops.get_remote_heartbeat(part);
                 if (ret != xpSuccess)
                         XPC_DEACTIVATE_PARTITION(part, ret);
         }
@@ -353,7 +297,7 @@ xpc_hb_checker(void *ignore)
                         force_IRQ = 0;
                         dev_dbg(xpc_part, "processing activate IRQs "
                                 "received\n");
-                        xpc_process_activate_IRQ_rcvd();
+                        xpc_arch_ops.process_activate_IRQ_rcvd();
                 }
 
                 /* wait for IRQ or timeout */
@@ -528,7 +472,7 @@ xpc_setup_ch_structures(struct xpc_partition *part)
                 init_waitqueue_head(&ch->idle_wq);
         }
 
-        ret = xpc_setup_ch_structures_sn(part);
+        ret = xpc_arch_ops.setup_ch_structures(part);
         if (ret != xpSuccess)
                 goto out_2;
 
@@ -572,7 +516,7 @@ xpc_teardown_ch_structures(struct xpc_partition *part)
 
         /* now we can begin tearing down the infrastructure */
 
-        xpc_teardown_ch_structures_sn(part);
+        xpc_arch_ops.teardown_ch_structures(part);
 
         kfree(part->remote_openclose_args_base);
         part->remote_openclose_args = NULL;
@@ -620,12 +564,12 @@ xpc_activating(void *__partid)
 
         dev_dbg(xpc_part, "activating partition %d\n", partid);
 
-        xpc_allow_hb(partid);
+        xpc_arch_ops.allow_hb(partid);
 
         if (xpc_setup_ch_structures(part) == xpSuccess) {
                 (void)xpc_part_ref(part);       /* this will always succeed */
 
-                if (xpc_make_first_contact(part) == xpSuccess) {
+                if (xpc_arch_ops.make_first_contact(part) == xpSuccess) {
                         xpc_mark_partition_active(part);
                         xpc_channel_mgr(part);
                         /* won't return until partition is deactivating */
@@ -635,12 +579,12 @@ xpc_activating(void *__partid)
                 xpc_teardown_ch_structures(part);
         }
 
-        xpc_disallow_hb(partid);
+        xpc_arch_ops.disallow_hb(partid);
         xpc_mark_partition_inactive(part);
 
         if (part->reason == xpReactivating) {
                 /* interrupting ourselves results in activating partition */
-                xpc_request_partition_reactivation(part);
+                xpc_arch_ops.request_partition_reactivation(part);
         }
 
         return 0;
@@ -713,10 +657,13 @@ xpc_activate_kthreads(struct xpc_channel *ch, int needed)
 static void
 xpc_kthread_waitmsgs(struct xpc_partition *part, struct xpc_channel *ch)
 {
+        int (*n_of_deliverable_payloads) (struct xpc_channel *) =
+                xpc_arch_ops.n_of_deliverable_payloads;
+
         do {
                 /* deliver messages to their intended recipients */
 
-                while (xpc_n_of_deliverable_payloads(ch) > 0 &&
+                while (n_of_deliverable_payloads(ch) > 0 &&
                        !(ch->flags & XPC_C_DISCONNECTING)) {
                         xpc_deliver_payload(ch);
                 }
@@ -732,7 +679,7 @@ xpc_kthread_waitmsgs(struct xpc_partition *part, struct xpc_channel *ch)
                         "wait_event_interruptible_exclusive()\n");
 
                 (void)wait_event_interruptible_exclusive(ch->idle_wq,
-                                (xpc_n_of_deliverable_payloads(ch) > 0 ||
+                                (n_of_deliverable_payloads(ch) > 0 ||
                                  (ch->flags & XPC_C_DISCONNECTING)));
 
                 atomic_dec(&ch->kthreads_idle);
@@ -749,6 +696,8 @@ xpc_kthread_start(void *args)
         struct xpc_channel *ch;
         int n_needed;
         unsigned long irq_flags;
+        int (*n_of_deliverable_payloads) (struct xpc_channel *) =
+                xpc_arch_ops.n_of_deliverable_payloads;
 
         dev_dbg(xpc_chan, "kthread starting, partid=%d, channel=%d\n",
                 partid, ch_number);
@@ -777,7 +726,7 @@ xpc_kthread_start(void *args)
                          * additional kthreads to help deliver them. We only
                          * need one less than total #of messages to deliver.
                          */
-                        n_needed = xpc_n_of_deliverable_payloads(ch) - 1;
+                        n_needed = n_of_deliverable_payloads(ch) - 1;
                         if (n_needed > 0 && !(ch->flags & XPC_C_DISCONNECTING))
                                 xpc_activate_kthreads(ch, n_needed);
 
@@ -805,7 +754,7 @@ xpc_kthread_start(void *args)
 
         if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
             atomic_dec_return(&part->nchannels_engaged) == 0) {
-                xpc_indicate_partition_disengaged(part);
+                xpc_arch_ops.indicate_partition_disengaged(part);
         }
 
         xpc_msgqueue_deref(ch);
@@ -837,6 +786,8 @@ xpc_create_kthreads(struct xpc_channel *ch, int needed,
         u64 args = XPC_PACK_ARGS(ch->partid, ch->number);
         struct xpc_partition *part = &xpc_partitions[ch->partid];
         struct task_struct *kthread;
+        void (*indicate_partition_disengaged) (struct xpc_partition *) =
+                xpc_arch_ops.indicate_partition_disengaged;
 
         while (needed-- > 0) {
 
@@ -858,7 +809,7 @@ xpc_create_kthreads(struct xpc_channel *ch, int needed,
 
                 } else if (atomic_inc_return(&ch->kthreads_assigned) == 1 &&
                            atomic_inc_return(&part->nchannels_engaged) == 1) {
-                                xpc_indicate_partition_engaged(part);
+                        xpc_arch_ops.indicate_partition_engaged(part);
                 }
                 (void)xpc_part_ref(part);
                 xpc_msgqueue_ref(ch);
@@ -880,7 +831,7 @@ xpc_create_kthreads(struct xpc_channel *ch, int needed,
 
                         if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
                             atomic_dec_return(&part->nchannels_engaged) == 0) {
-                                xpc_indicate_partition_disengaged(part);
+                                indicate_partition_disengaged(part);
                         }
                         xpc_msgqueue_deref(ch);
                         xpc_part_deref(part);
@@ -993,13 +944,13 @@ xpc_setup_partitions(void)
                 atomic_set(&part->references, 0);
         }
 
-        return xpc_setup_partitions_sn();
+        return xpc_arch_ops.setup_partitions();
 }
 
 static void
 xpc_teardown_partitions(void)
 {
-        xpc_teardown_partitions_sn();
+        xpc_arch_ops.teardown_partitions();
         kfree(xpc_partitions);
 }
 
@@ -1055,7 +1006,7 @@ xpc_do_exit(enum xp_retval reason)
                                 disengage_timeout = part->disengage_timeout;
                 }
 
-                if (xpc_any_partition_engaged()) {
+                if (xpc_arch_ops.any_partition_engaged()) {
                         if (time_is_before_jiffies(printmsg_time)) {
                                 dev_info(xpc_part, "waiting for remote "
                                          "partitions to deactivate, timeout in "
@@ -1086,8 +1037,7 @@ xpc_do_exit(enum xp_retval reason)
 
         } while (1);
 
-        DBUG_ON(xpc_any_partition_engaged());
-        DBUG_ON(xpc_any_hbs_allowed() != 0);
+        DBUG_ON(xpc_arch_ops.any_partition_engaged());
 
         xpc_teardown_rsvd_page();
 
@@ -1152,15 +1102,15 @@ xpc_die_deactivate(void)
         /* keep xpc_hb_checker thread from doing anything (just in case) */
         xpc_exiting = 1;
 
-        xpc_disallow_all_hbs(); /*indicate we're deactivated */
+        xpc_arch_ops.disallow_all_hbs();   /*indicate we're deactivated */
 
         for (partid = 0; partid < xp_max_npartitions; partid++) {
                 part = &xpc_partitions[partid];
 
-                if (xpc_partition_engaged(partid) ||
+                if (xpc_arch_ops.partition_engaged(partid) ||
                     part->act_state != XPC_P_AS_INACTIVE) {
-                        xpc_request_partition_deactivation(part);
-                        xpc_indicate_partition_disengaged(part);
+                        xpc_arch_ops.request_partition_deactivation(part);
+                        xpc_arch_ops.indicate_partition_disengaged(part);
                 }
         }
 
@@ -1177,7 +1127,7 @@ xpc_die_deactivate(void)
         wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL * 1000 * 5;
 
         while (1) {
-                any_engaged = xpc_any_partition_engaged();
+                any_engaged = xpc_arch_ops.any_partition_engaged();
                 if (!any_engaged) {
                         dev_info(xpc_part, "all partitions have deactivated\n");
                         break;
@@ -1186,7 +1136,7 @@ xpc_die_deactivate(void)
                 if (!keep_waiting--) {
                         for (partid = 0; partid < xp_max_npartitions;
                              partid++) {
-                                if (xpc_partition_engaged(partid)) {
+                                if (xpc_arch_ops.partition_engaged(partid)) {
                                         dev_info(xpc_part, "deactivate from "
                                                  "remote partition %d timed "
                                                  "out\n", partid);
@@ -1233,7 +1183,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
                 /* fall through */
         case DIE_MCA_MONARCH_ENTER:
         case DIE_INIT_MONARCH_ENTER:
-                xpc_offline_heartbeat();
+                xpc_arch_ops.offline_heartbeat();
                 break;
 
         case DIE_KDEBUG_LEAVE:
@@ -1244,7 +1194,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
                 /* fall through */
         case DIE_MCA_MONARCH_LEAVE:
         case DIE_INIT_MONARCH_LEAVE:
-                xpc_online_heartbeat();
+                xpc_arch_ops.online_heartbeat();
                 break;
         }
 #else
diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c
index 6722f6fe4dc7..65877bc5edaa 100644
--- a/drivers/misc/sgi-xp/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -70,6 +70,9 @@ xpc_get_rsvd_page_pa(int nasid)
         size_t buf_len = 0;
         void *buf = buf;
         void *buf_base = NULL;
+        enum xp_retval (*get_partition_rsvd_page_pa)
+                (void *, u64 *, unsigned long *, size_t *) =
+                xpc_arch_ops.get_partition_rsvd_page_pa;
 
         while (1) {
 
@@ -79,8 +82,7 @@ xpc_get_rsvd_page_pa(int nasid)
                  * ??? function or have two versions? Rename rp_pa for UV to
                  * ??? rp_gpa?
                  */
-                ret = xpc_get_partition_rsvd_page_pa(buf, &cookie, &rp_pa,
-                                                     &len);
+                ret = get_partition_rsvd_page_pa(buf, &cookie, &rp_pa, &len);
 
                 dev_dbg(xpc_part, "SAL returned with ret=%d, cookie=0x%016lx, "
                         "address=0x%016lx, len=0x%016lx\n", ret,
@@ -172,7 +174,7 @@ xpc_setup_rsvd_page(void)
         xpc_part_nasids = XPC_RP_PART_NASIDS(rp);
         xpc_mach_nasids = XPC_RP_MACH_NASIDS(rp);
 
-        ret = xpc_setup_rsvd_page_sn(rp);
+        ret = xpc_arch_ops.setup_rsvd_page(rp);
         if (ret != 0)
                 return ret;
 
@@ -264,7 +266,7 @@ xpc_partition_disengaged(struct xpc_partition *part)
         short partid = XPC_PARTID(part);
         int disengaged;
 
-        disengaged = !xpc_partition_engaged(partid);
+        disengaged = !xpc_arch_ops.partition_engaged(partid);
         if (part->disengage_timeout) {
                 if (!disengaged) {
                         if (time_is_after_jiffies(part->disengage_timeout)) {
@@ -280,7 +282,7 @@ xpc_partition_disengaged(struct xpc_partition *part)
                         dev_info(xpc_part, "deactivate request to remote "
                                  "partition %d timed out\n", partid);
                         xpc_disengage_timedout = 1;
-                        xpc_assume_partition_disengaged(partid);
+                        xpc_arch_ops.assume_partition_disengaged(partid);
                         disengaged = 1;
                 }
                 part->disengage_timeout = 0;
@@ -294,7 +296,7 @@ xpc_partition_disengaged(struct xpc_partition *part)
                 if (part->act_state != XPC_P_AS_INACTIVE)
                         xpc_wakeup_channel_mgr(part);
 
-                xpc_cancel_partition_deactivation_request(part);
+                xpc_arch_ops.cancel_partition_deactivation_request(part);
         }
         return disengaged;
 }
@@ -339,7 +341,7 @@ xpc_deactivate_partition(const int line, struct xpc_partition *part,
                 spin_unlock_irqrestore(&part->act_lock, irq_flags);
                 if (reason == xpReactivating) {
                         /* we interrupt ourselves to reactivate partition */
-                        xpc_request_partition_reactivation(part);
+                        xpc_arch_ops.request_partition_reactivation(part);
                 }
                 return;
         }
@@ -358,7 +360,7 @@ xpc_deactivate_partition(const int line, struct xpc_partition *part,
         spin_unlock_irqrestore(&part->act_lock, irq_flags);
 
         /* ask remote partition to deactivate with regard to us */
-        xpc_request_partition_deactivation(part);
+        xpc_arch_ops.request_partition_deactivation(part);
 
         /* set a timelimit on the disengage phase of the deactivation request */
         part->disengage_timeout = jiffies + (xpc_disengage_timelimit * HZ);
@@ -496,7 +498,7 @@ xpc_discovery(void)
                                 continue;
                         }
 
-                        xpc_request_partition_activation(remote_rp,
+                        xpc_arch_ops.request_partition_activation(remote_rp,
                                                          remote_rp_pa, nasid);
                 }
         }
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c
index eaaa964942de..915a3b495da5 100644
--- a/drivers/misc/sgi-xp/xpc_sn2.c
+++ b/drivers/misc/sgi-xp/xpc_sn2.c
@@ -3,7 +3,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2008-2009 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
 /*
@@ -60,14 +60,14 @@ static struct xpc_vars_sn2 *xpc_vars_sn2;
 static struct xpc_vars_part_sn2 *xpc_vars_part_sn2;
 
 static int
-xpc_setup_partitions_sn_sn2(void)
+xpc_setup_partitions_sn2(void)
 {
         /* nothing needs to be done */
         return 0;
 }
 
 static void
-xpc_teardown_partitions_sn_sn2(void)
+xpc_teardown_partitions_sn2(void)
 {
         /* nothing needs to be done */
 }
@@ -431,6 +431,13 @@ xpc_send_chctl_openreply_sn2(struct xpc_channel *ch, unsigned long *irq_flags)
 }
 
 static void
+xpc_send_chctl_opencomplete_sn2(struct xpc_channel *ch,
+                                unsigned long *irq_flags)
+{
+        XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_OPENCOMPLETE, irq_flags);
+}
+
+static void
 xpc_send_chctl_msgrequest_sn2(struct xpc_channel *ch)
 {
         XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_MSGREQUEST, NULL);
@@ -621,7 +628,7 @@ xpc_get_partition_rsvd_page_pa_sn2(void *buf, u64 *cookie, unsigned long *rp_pa,
 
 
 static int
-xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp)
+xpc_setup_rsvd_page_sn2(struct xpc_rsvd_page *rp)
 {
         struct amo *amos_page;
         int i;
@@ -629,7 +636,7 @@ xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp)
 
         xpc_vars_sn2 = XPC_RP_VARS(rp);
 
-        rp->sn.vars_pa = xp_pa(xpc_vars_sn2);
+        rp->sn.sn2.vars_pa = xp_pa(xpc_vars_sn2);
 
         /* vars_part array follows immediately after vars */
         xpc_vars_part_sn2 = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) +
@@ -693,6 +700,33 @@ xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp)
         return 0;
 }
 
+static int
+xpc_hb_allowed_sn2(short partid, void *heartbeating_to_mask)
+{
+        return test_bit(partid, heartbeating_to_mask);
+}
+
+static void
+xpc_allow_hb_sn2(short partid)
+{
+        DBUG_ON(xpc_vars_sn2 == NULL);
+        set_bit(partid, xpc_vars_sn2->heartbeating_to_mask);
+}
+
+static void
+xpc_disallow_hb_sn2(short partid)
+{
+        DBUG_ON(xpc_vars_sn2 == NULL);
+        clear_bit(partid, xpc_vars_sn2->heartbeating_to_mask);
+}
+
+static void
+xpc_disallow_all_hbs_sn2(void)
+{
+        DBUG_ON(xpc_vars_sn2 == NULL);
+        bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, xp_max_npartitions);
+}
+
 static void
 xpc_increment_heartbeat_sn2(void)
 {
@@ -719,7 +753,6 @@ xpc_heartbeat_init_sn2(void)
         DBUG_ON(xpc_vars_sn2 == NULL);
 
         bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2);
-        xpc_heartbeating_to_mask = &xpc_vars_sn2->heartbeating_to_mask[0];
         xpc_online_heartbeat_sn2();
 }
 
@@ -751,9 +784,9 @@ xpc_get_remote_heartbeat_sn2(struct xpc_partition *part)
                 remote_vars->heartbeating_to_mask[0]);
 
         if ((remote_vars->heartbeat == part->last_heartbeat &&
-            remote_vars->heartbeat_offline == 0) ||
-            !xpc_hb_allowed(sn_partition_id,
-                            &remote_vars->heartbeating_to_mask)) {
+            !remote_vars->heartbeat_offline) ||
+            !xpc_hb_allowed_sn2(sn_partition_id,
+                                remote_vars->heartbeating_to_mask)) {
                 ret = xpNoHeartbeat;
         } else {
                 part->last_heartbeat = remote_vars->heartbeat;
@@ -972,7 +1005,7 @@ xpc_identify_activate_IRQ_req_sn2(int nasid)
                 return;
         }
 
-        remote_vars_pa = remote_rp->sn.vars_pa;
+        remote_vars_pa = remote_rp->sn.sn2.vars_pa;
         remote_rp_version = remote_rp->version;
         remote_rp_ts_jiffies = remote_rp->ts_jiffies;
 
@@ -1129,7 +1162,7 @@ xpc_process_activate_IRQ_rcvd_sn2(void)
  * Setup the channel structures that are sn2 specific.
  */
 static enum xp_retval
-xpc_setup_ch_structures_sn_sn2(struct xpc_partition *part)
+xpc_setup_ch_structures_sn2(struct xpc_partition *part)
 {
         struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
         struct xpc_channel_sn2 *ch_sn2;
@@ -1251,7 +1284,7 @@ out_1:
  * Teardown the channel structures that are sn2 specific.
  */
 static void
-xpc_teardown_ch_structures_sn_sn2(struct xpc_partition *part)
+xpc_teardown_ch_structures_sn2(struct xpc_partition *part)
 {
         struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
         short partid = XPC_PARTID(part);
@@ -2315,61 +2348,70 @@ xpc_received_payload_sn2(struct xpc_channel *ch, void *payload)
                 xpc_acknowledge_msgs_sn2(ch, get, msg->flags);
 }
 
+static struct xpc_arch_operations xpc_arch_ops_sn2 = {
+        .setup_partitions = xpc_setup_partitions_sn2,
+        .teardown_partitions = xpc_teardown_partitions_sn2,
+        .process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_sn2,
+        .get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2,
+        .setup_rsvd_page = xpc_setup_rsvd_page_sn2,
+
+        .allow_hb = xpc_allow_hb_sn2,
+        .disallow_hb = xpc_disallow_hb_sn2,
+        .disallow_all_hbs = xpc_disallow_all_hbs_sn2,
+        .increment_heartbeat = xpc_increment_heartbeat_sn2,
+        .offline_heartbeat = xpc_offline_heartbeat_sn2,
+        .online_heartbeat = xpc_online_heartbeat_sn2,
+        .heartbeat_init = xpc_heartbeat_init_sn2,
+        .heartbeat_exit = xpc_heartbeat_exit_sn2,
+        .get_remote_heartbeat = xpc_get_remote_heartbeat_sn2,
+
+        .request_partition_activation =
+                xpc_request_partition_activation_sn2,
+        .request_partition_reactivation =
+                xpc_request_partition_reactivation_sn2,
+        .request_partition_deactivation =
+                xpc_request_partition_deactivation_sn2,
+        .cancel_partition_deactivation_request =
+                xpc_cancel_partition_deactivation_request_sn2,
+
+        .setup_ch_structures = xpc_setup_ch_structures_sn2,
+        .teardown_ch_structures = xpc_teardown_ch_structures_sn2,
+
+        .make_first_contact = xpc_make_first_contact_sn2,
+
+        .get_chctl_all_flags = xpc_get_chctl_all_flags_sn2,
+        .send_chctl_closerequest = xpc_send_chctl_closerequest_sn2,
+        .send_chctl_closereply = xpc_send_chctl_closereply_sn2,
+        .send_chctl_openrequest = xpc_send_chctl_openrequest_sn2,
+        .send_chctl_openreply = xpc_send_chctl_openreply_sn2,
+        .send_chctl_opencomplete = xpc_send_chctl_opencomplete_sn2,
+        .process_msg_chctl_flags = xpc_process_msg_chctl_flags_sn2,
+
+        .save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_sn2,
+
+        .setup_msg_structures = xpc_setup_msg_structures_sn2,
+        .teardown_msg_structures = xpc_teardown_msg_structures_sn2,
+
+        .indicate_partition_engaged = xpc_indicate_partition_engaged_sn2,
+        .indicate_partition_disengaged = xpc_indicate_partition_disengaged_sn2,
+        .partition_engaged = xpc_partition_engaged_sn2,
+        .any_partition_engaged = xpc_any_partition_engaged_sn2,
+        .assume_partition_disengaged = xpc_assume_partition_disengaged_sn2,
+
+        .n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_sn2,
+        .send_payload = xpc_send_payload_sn2,
+        .get_deliverable_payload = xpc_get_deliverable_payload_sn2,
+        .received_payload = xpc_received_payload_sn2,
+        .notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_sn2,
+};
+
 int
 xpc_init_sn2(void)
 {
         int ret;
         size_t buf_size;
 
-        xpc_setup_partitions_sn = xpc_setup_partitions_sn_sn2;
-        xpc_teardown_partitions_sn = xpc_teardown_partitions_sn_sn2;
-        xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2;
-        xpc_setup_rsvd_page_sn = xpc_setup_rsvd_page_sn_sn2;
-        xpc_increment_heartbeat = xpc_increment_heartbeat_sn2;
-        xpc_offline_heartbeat = xpc_offline_heartbeat_sn2;
-        xpc_online_heartbeat = xpc_online_heartbeat_sn2;
-        xpc_heartbeat_init = xpc_heartbeat_init_sn2;
-        xpc_heartbeat_exit = xpc_heartbeat_exit_sn2;
-        xpc_get_remote_heartbeat = xpc_get_remote_heartbeat_sn2;
-
-        xpc_request_partition_activation = xpc_request_partition_activation_sn2;
-        xpc_request_partition_reactivation =
-            xpc_request_partition_reactivation_sn2;
-        xpc_request_partition_deactivation =
-            xpc_request_partition_deactivation_sn2;
-        xpc_cancel_partition_deactivation_request =
-            xpc_cancel_partition_deactivation_request_sn2;
-
-        xpc_process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_sn2;
-        xpc_setup_ch_structures_sn = xpc_setup_ch_structures_sn_sn2;
-        xpc_teardown_ch_structures_sn = xpc_teardown_ch_structures_sn_sn2;
-        xpc_make_first_contact = xpc_make_first_contact_sn2;
-
-        xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_sn2;
-        xpc_send_chctl_closerequest = xpc_send_chctl_closerequest_sn2;
-        xpc_send_chctl_closereply = xpc_send_chctl_closereply_sn2;
-        xpc_send_chctl_openrequest = xpc_send_chctl_openrequest_sn2;
-        xpc_send_chctl_openreply = xpc_send_chctl_openreply_sn2;
-
-        xpc_save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_sn2;
-
-        xpc_setup_msg_structures = xpc_setup_msg_structures_sn2;
-        xpc_teardown_msg_structures = xpc_teardown_msg_structures_sn2;
-
-        xpc_notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_sn2;
-        xpc_process_msg_chctl_flags = xpc_process_msg_chctl_flags_sn2;
-        xpc_n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_sn2;
-        xpc_get_deliverable_payload = xpc_get_deliverable_payload_sn2;
-
-        xpc_indicate_partition_engaged = xpc_indicate_partition_engaged_sn2;
-        xpc_indicate_partition_disengaged =
-            xpc_indicate_partition_disengaged_sn2;
-        xpc_partition_engaged = xpc_partition_engaged_sn2;
-        xpc_any_partition_engaged = xpc_any_partition_engaged_sn2;
-        xpc_assume_partition_disengaged = xpc_assume_partition_disengaged_sn2;
-
-        xpc_send_payload = xpc_send_payload_sn2;
-        xpc_received_payload = xpc_received_payload_sn2;
+        xpc_arch_ops = xpc_arch_ops_sn2;
 
         if (offsetof(struct xpc_msg_sn2, payload) > XPC_MSG_HDR_MAX_SIZE) {
                 dev_err(xpc_part, "header portion of struct xpc_msg_sn2 is "
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index f7fff4727edb..9172fcdee4e2 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -46,8 +46,7 @@ struct uv_IO_APIC_route_entry {
 };
 #endif
 
-static atomic64_t xpc_heartbeat_uv;
-static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
+static struct xpc_heartbeat_uv *xpc_heartbeat_uv;
 
 #define XPC_ACTIVATE_MSG_SIZE_UV        (1 * GRU_CACHE_LINE_BYTES)
 #define XPC_ACTIVATE_MQ_SIZE_UV         (4 * XP_MAX_NPARTITIONS_UV * \
@@ -63,7 +62,7 @@ static struct xpc_gru_mq_uv *xpc_activate_mq_uv;
 static struct xpc_gru_mq_uv *xpc_notify_mq_uv;
 
 static int
-xpc_setup_partitions_sn_uv(void)
+xpc_setup_partitions_uv(void)
 {
         short partid;
         struct xpc_partition_uv *part_uv;
@@ -79,7 +78,7 @@ xpc_setup_partitions_sn_uv(void)
 }
 
 static void
-xpc_teardown_partitions_sn_uv(void)
+xpc_teardown_partitions_uv(void)
 {
         short partid;
         struct xpc_partition_uv *part_uv;
@@ -423,41 +422,6 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
                 /* syncing of remote_act_state was just done above */
                 break;
 
-        case XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV: {
-                struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
-                msg = container_of(msg_hdr,
-                                   struct xpc_activate_mq_msg_heartbeat_req_uv,
-                                   hdr);
-                part_uv->heartbeat = msg->heartbeat;
-                break;
-        }
-        case XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV: {
-                struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
-                msg = container_of(msg_hdr,
-                                   struct xpc_activate_mq_msg_heartbeat_req_uv,
-                                   hdr);
-                part_uv->heartbeat = msg->heartbeat;
-
-                spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
-                part_uv->flags |= XPC_P_HEARTBEAT_OFFLINE_UV;
-                spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
-                break;
-        }
-        case XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV: {
-                struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
-                msg = container_of(msg_hdr,
-                                   struct xpc_activate_mq_msg_heartbeat_req_uv,
-                                   hdr);
-                part_uv->heartbeat = msg->heartbeat;
-
-                spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
-                part_uv->flags &= ~XPC_P_HEARTBEAT_OFFLINE_UV;
-                spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
-                break;
-        }
         case XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV: {
                 struct xpc_activate_mq_msg_activate_req_uv *msg;
 
@@ -475,6 +439,7 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
                 part_uv->act_state_req = XPC_P_ASR_ACTIVATE_UV;
                 part->remote_rp_pa = msg->rp_gpa; /* !!! _pa is _gpa */
                 part->remote_rp_ts_jiffies = msg_hdr->rp_ts_jiffies;
+                part_uv->heartbeat_gpa = msg->heartbeat_gpa;
 
                 if (msg->activate_gru_mq_desc_gpa !=
                     part_uv->activate_gru_mq_desc_gpa) {
@@ -569,6 +534,17 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
                 xpc_wakeup_channel_mgr(part);
                 break;
         }
+        case XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV: {
+                struct xpc_activate_mq_msg_chctl_opencomplete_uv *msg;
+
+                msg = container_of(msg_hdr, struct
+                                xpc_activate_mq_msg_chctl_opencomplete_uv, hdr);
+                spin_lock_irqsave(&part->chctl_lock, irq_flags);
+                part->chctl.flags[msg->ch_number] |= XPC_CHCTL_OPENCOMPLETE;
+                spin_unlock_irqrestore(&part->chctl_lock, irq_flags);
+
+                xpc_wakeup_channel_mgr(part);
+        }
         case XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV:
                 spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
                 part_uv->flags |= XPC_P_ENGAGED_UV;
@@ -759,7 +735,7 @@ xpc_send_local_activate_IRQ_uv(struct xpc_partition *part, int act_state_req)
 
         /*
          * !!! Make our side think that the remote partition sent an activate
-         * !!! message our way by doing what the activate IRQ handler would
+         * !!! mq message our way by doing what the activate IRQ handler would
          * !!! do had one really been sent.
          */
 
@@ -806,90 +782,82 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
 }
 
 static int
-xpc_setup_rsvd_page_sn_uv(struct xpc_rsvd_page *rp)
+xpc_setup_rsvd_page_uv(struct xpc_rsvd_page *rp)
 {
-        rp->sn.activate_gru_mq_desc_gpa =
+        xpc_heartbeat_uv =
+            &xpc_partitions[sn_partition_id].sn.uv.cached_heartbeat;
+        rp->sn.uv.heartbeat_gpa = uv_gpa(xpc_heartbeat_uv);
+        rp->sn.uv.activate_gru_mq_desc_gpa =
             uv_gpa(xpc_activate_mq_uv->gru_mq_desc);
         return 0;
 }
 
 static void
-xpc_send_heartbeat_uv(int msg_type)
+xpc_allow_hb_uv(short partid)
 {
-        short partid;
-        struct xpc_partition *part;
-        struct xpc_activate_mq_msg_heartbeat_req_uv msg;
-
-        /*
-         * !!! On uv we're broadcasting a heartbeat message every 5 seconds.
-         * !!! Whereas on sn2 we're bte_copy'ng the heartbeat info every 20
-         * !!! seconds. This is an increase in numalink traffic.
-         * ??? Is this good?
-         */
-
-        msg.heartbeat = atomic64_inc_return(&xpc_heartbeat_uv);
-
-        partid = find_first_bit(xpc_heartbeating_to_mask_uv,
-                                XP_MAX_NPARTITIONS_UV);
-
-        while (partid < XP_MAX_NPARTITIONS_UV) {
-                part = &xpc_partitions[partid];
+}
 
-                xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
-                                              msg_type);
+static void
+xpc_disallow_hb_uv(short partid)
+{
+}
 
-                partid = find_next_bit(xpc_heartbeating_to_mask_uv,
-                                       XP_MAX_NPARTITIONS_UV, partid + 1);
-        }
+static void
+xpc_disallow_all_hbs_uv(void)
+{
 }
 
 static void
 xpc_increment_heartbeat_uv(void)
 {
-        xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV);
+        xpc_heartbeat_uv->value++;
 }
 
 static void
 xpc_offline_heartbeat_uv(void)
 {
-        xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV);
+        xpc_increment_heartbeat_uv();
+        xpc_heartbeat_uv->offline = 1;
 }
 
 static void
 xpc_online_heartbeat_uv(void)
 {
-        xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV);
+        xpc_increment_heartbeat_uv();
+        xpc_heartbeat_uv->offline = 0;
 }
 
 static void
 xpc_heartbeat_init_uv(void)
 {
-        atomic64_set(&xpc_heartbeat_uv, 0);
-        bitmap_zero(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
-        xpc_heartbeating_to_mask = &xpc_heartbeating_to_mask_uv[0];
+        xpc_heartbeat_uv->value = 1;
+        xpc_heartbeat_uv->offline = 0;
 }
 
 static void
 xpc_heartbeat_exit_uv(void)
 {
-        xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV);
+        xpc_offline_heartbeat_uv();
 }
 
 static enum xp_retval
 xpc_get_remote_heartbeat_uv(struct xpc_partition *part)
 {
         struct xpc_partition_uv *part_uv = &part->sn.uv;
-        enum xp_retval ret = xpNoHeartbeat;
+        enum xp_retval ret;
 
-        if (part_uv->remote_act_state != XPC_P_AS_INACTIVE &&
-            part_uv->remote_act_state != XPC_P_AS_DEACTIVATING) {
+        ret = xp_remote_memcpy(uv_gpa(&part_uv->cached_heartbeat),
+                               part_uv->heartbeat_gpa,
+                               sizeof(struct xpc_heartbeat_uv));
+        if (ret != xpSuccess)
+                return ret;
 
-                if (part_uv->heartbeat != part->last_heartbeat ||
-                    (part_uv->flags & XPC_P_HEARTBEAT_OFFLINE_UV)) {
+        if (part_uv->cached_heartbeat.value == part->last_heartbeat &&
+            !part_uv->cached_heartbeat.offline) {
 
-                        part->last_heartbeat = part_uv->heartbeat;
-                        ret = xpSuccess;
-                }
+                ret = xpNoHeartbeat;
+        } else {
+                part->last_heartbeat = part_uv->cached_heartbeat.value;
         }
         return ret;
 }
@@ -904,8 +872,9 @@ xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
 
         part->remote_rp_pa = remote_rp_gpa; /* !!! _pa here is really _gpa */
         part->remote_rp_ts_jiffies = remote_rp->ts_jiffies;
+        part->sn.uv.heartbeat_gpa = remote_rp->sn.uv.heartbeat_gpa;
         part->sn.uv.activate_gru_mq_desc_gpa =
-            remote_rp->sn.activate_gru_mq_desc_gpa;
+            remote_rp->sn.uv.activate_gru_mq_desc_gpa;
 
         /*
          * ??? Is it a good idea to make this conditional on what is
@@ -913,8 +882,9 @@ xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
          */
         if (part->sn.uv.remote_act_state == XPC_P_AS_INACTIVE) {
                 msg.rp_gpa = uv_gpa(xpc_rsvd_page);
+                msg.heartbeat_gpa = xpc_rsvd_page->sn.uv.heartbeat_gpa;
                 msg.activate_gru_mq_desc_gpa =
-                    xpc_rsvd_page->sn.activate_gru_mq_desc_gpa;
+                    xpc_rsvd_page->sn.uv.activate_gru_mq_desc_gpa;
                 xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
                                            XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV);
         }
@@ -1010,7 +980,7 @@ xpc_n_of_fifo_entries_uv(struct xpc_fifo_head_uv *head)
  * Setup the channel structures that are uv specific.
  */
 static enum xp_retval
-xpc_setup_ch_structures_sn_uv(struct xpc_partition *part)
+xpc_setup_ch_structures_uv(struct xpc_partition *part)
 {
         struct xpc_channel_uv *ch_uv;
         int ch_number;
@@ -1029,7 +999,7 @@ xpc_setup_ch_structures_sn_uv(struct xpc_partition *part)
  * Teardown the channel structures that are uv specific.
  */
 static void
-xpc_teardown_ch_structures_sn_uv(struct xpc_partition *part)
+xpc_teardown_ch_structures_uv(struct xpc_partition *part)
 {
         /* nothing needs to be done */
         return;
@@ -1243,6 +1213,16 @@ xpc_send_chctl_openreply_uv(struct xpc_channel *ch, unsigned long *irq_flags)
 }
 
 static void
+xpc_send_chctl_opencomplete_uv(struct xpc_channel *ch, unsigned long *irq_flags)
+{
+        struct xpc_activate_mq_msg_chctl_opencomplete_uv msg;
+
+        msg.ch_number = ch->number;
+        xpc_send_activate_IRQ_ch_uv(ch, irq_flags, &msg, sizeof(msg),
+                                    XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV);
+}
+
+static void
 xpc_send_chctl_local_msgrequest_uv(struct xpc_partition *part, int ch_number)
 {
         unsigned long irq_flags;
@@ -1669,58 +1649,67 @@ xpc_received_payload_uv(struct xpc_channel *ch, void *payload)
         msg->hdr.msg_slot_number += ch->remote_nentries;
 }
 
+static struct xpc_arch_operations xpc_arch_ops_uv = {
+        .setup_partitions = xpc_setup_partitions_uv,
+        .teardown_partitions = xpc_teardown_partitions_uv,
+        .process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv,
+        .get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_uv,
+        .setup_rsvd_page = xpc_setup_rsvd_page_uv,
+
+        .allow_hb = xpc_allow_hb_uv,
+        .disallow_hb = xpc_disallow_hb_uv,
+        .disallow_all_hbs = xpc_disallow_all_hbs_uv,
+        .increment_heartbeat = xpc_increment_heartbeat_uv,
+        .offline_heartbeat = xpc_offline_heartbeat_uv,
+        .online_heartbeat = xpc_online_heartbeat_uv,
+        .heartbeat_init = xpc_heartbeat_init_uv,
+        .heartbeat_exit = xpc_heartbeat_exit_uv,
+        .get_remote_heartbeat = xpc_get_remote_heartbeat_uv,
+
+        .request_partition_activation =
+                xpc_request_partition_activation_uv,
+        .request_partition_reactivation =
+                xpc_request_partition_reactivation_uv,
+        .request_partition_deactivation =
+                xpc_request_partition_deactivation_uv,
+        .cancel_partition_deactivation_request =
+                xpc_cancel_partition_deactivation_request_uv,
+
+        .setup_ch_structures = xpc_setup_ch_structures_uv,
+        .teardown_ch_structures = xpc_teardown_ch_structures_uv,
+
+        .make_first_contact = xpc_make_first_contact_uv,
+
+        .get_chctl_all_flags = xpc_get_chctl_all_flags_uv,
+        .send_chctl_closerequest = xpc_send_chctl_closerequest_uv,
+        .send_chctl_closereply = xpc_send_chctl_closereply_uv,
+        .send_chctl_openrequest = xpc_send_chctl_openrequest_uv,
+        .send_chctl_openreply = xpc_send_chctl_openreply_uv,
+        .send_chctl_opencomplete = xpc_send_chctl_opencomplete_uv,
+        .process_msg_chctl_flags = xpc_process_msg_chctl_flags_uv,
+
+        .save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_uv,
+
+        .setup_msg_structures = xpc_setup_msg_structures_uv,
+        .teardown_msg_structures = xpc_teardown_msg_structures_uv,
+
+        .indicate_partition_engaged = xpc_indicate_partition_engaged_uv,
+        .indicate_partition_disengaged = xpc_indicate_partition_disengaged_uv,
+        .assume_partition_disengaged = xpc_assume_partition_disengaged_uv,
+        .partition_engaged = xpc_partition_engaged_uv,
+        .any_partition_engaged = xpc_any_partition_engaged_uv,
+
+        .n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_uv,
+        .send_payload = xpc_send_payload_uv,
+        .get_deliverable_payload = xpc_get_deliverable_payload_uv,
+        .received_payload = xpc_received_payload_uv,
+        .notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv,
+};
+
 int
 xpc_init_uv(void)
 {
-        xpc_setup_partitions_sn = xpc_setup_partitions_sn_uv;
-        xpc_teardown_partitions_sn = xpc_teardown_partitions_sn_uv;
-        xpc_process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv;
-        xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_uv;
-        xpc_setup_rsvd_page_sn = xpc_setup_rsvd_page_sn_uv;
-        xpc_increment_heartbeat = xpc_increment_heartbeat_uv;
-        xpc_offline_heartbeat = xpc_offline_heartbeat_uv;
-        xpc_online_heartbeat = xpc_online_heartbeat_uv;
-        xpc_heartbeat_init = xpc_heartbeat_init_uv;
-        xpc_heartbeat_exit = xpc_heartbeat_exit_uv;
-        xpc_get_remote_heartbeat = xpc_get_remote_heartbeat_uv;
-
-        xpc_request_partition_activation = xpc_request_partition_activation_uv;
-        xpc_request_partition_reactivation =
-            xpc_request_partition_reactivation_uv;
-        xpc_request_partition_deactivation =
-            xpc_request_partition_deactivation_uv;
-        xpc_cancel_partition_deactivation_request =
-            xpc_cancel_partition_deactivation_request_uv;
-
-        xpc_setup_ch_structures_sn = xpc_setup_ch_structures_sn_uv;
-        xpc_teardown_ch_structures_sn = xpc_teardown_ch_structures_sn_uv;
-
-        xpc_make_first_contact = xpc_make_first_contact_uv;
-
-        xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_uv;
-        xpc_send_chctl_closerequest = xpc_send_chctl_closerequest_uv;
-        xpc_send_chctl_closereply = xpc_send_chctl_closereply_uv;
-        xpc_send_chctl_openrequest = xpc_send_chctl_openrequest_uv;
-        xpc_send_chctl_openreply = xpc_send_chctl_openreply_uv;
-
-        xpc_save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_uv;
-
-        xpc_setup_msg_structures = xpc_setup_msg_structures_uv;
-        xpc_teardown_msg_structures = xpc_teardown_msg_structures_uv;
-
-        xpc_indicate_partition_engaged = xpc_indicate_partition_engaged_uv;
-        xpc_indicate_partition_disengaged =
-            xpc_indicate_partition_disengaged_uv;
-        xpc_assume_partition_disengaged = xpc_assume_partition_disengaged_uv;
-        xpc_partition_engaged = xpc_partition_engaged_uv;
-        xpc_any_partition_engaged = xpc_any_partition_engaged_uv;
-
-        xpc_n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_uv;
-        xpc_process_msg_chctl_flags = xpc_process_msg_chctl_flags_uv;
-        xpc_send_payload = xpc_send_payload_uv;
-        xpc_notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv;
-        xpc_get_deliverable_payload = xpc_get_deliverable_payload_uv;
-        xpc_received_payload = xpc_received_payload_uv;
+        xpc_arch_ops = xpc_arch_ops_uv;
 
         if (sizeof(struct xpc_notify_mq_msghdr_uv) > XPC_MSG_HDR_MAX_SIZE) {
                 dev_err(xpc_part, "xpc_notify_mq_msghdr_uv is larger than %d\n",
diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c
index deb7b53167ee..83a12125b94e 100644
--- a/drivers/net/atl1c/atl1c_main.c
+++ b/drivers/net/atl1c/atl1c_main.c
@@ -2532,8 +2532,8 @@ static int __devinit atl1c_probe(struct pci_dev *pdev,
          * various kernel subsystems to support the mechanics required by a
          * fixed-high-32-bit system.
          */
-        if ((pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0) ||
-            (pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) != 0)) {
+        if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
+            (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
                 dev_err(&pdev->dev, "No usable DMA configuration,aborting\n");
                 goto err_dma;
         }
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 9b75aa630062..30d0c81c989e 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -1821,11 +1821,11 @@ static int __devinit be_probe(struct pci_dev *pdev,
 
         be_msix_enable(adapter);
 
-        status = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+        status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
         if (!status) {
                 netdev->features |= NETIF_F_HIGHDMA;
         } else {
-                status = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+                status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
                 if (status) {
                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
                         goto free_netdev;
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index ece35040288c..621a7c0c46ba 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -2591,13 +2591,13 @@ static int
 jme_pci_dma64(struct pci_dev *pdev)
 {
         if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
-            !pci_set_dma_mask(pdev, DMA_64BIT_MASK))
-                if (!pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
+            !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
+                if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
                         return 1;
 
         if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
-            !pci_set_dma_mask(pdev, DMA_40BIT_MASK))
-                if (!pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK))
+            !pci_set_dma_mask(pdev, DMA_BIT_MASK(40)))
+                if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)))
                         return 1;
 
         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
diff --git a/drivers/net/wireless/ath9k/pci.c b/drivers/net/wireless/ath9k/pci.c
index 6dbc58580abb..168411d322a2 100644
--- a/drivers/net/wireless/ath9k/pci.c
+++ b/drivers/net/wireless/ath9k/pci.c
@@ -93,14 +93,14 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         if (pci_enable_device(pdev))
                 return -EIO;
 
-        ret =  pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+        ret =  pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 
         if (ret) {
                 printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
                 goto bad;
         }
 
-        ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+        ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 
         if (ret) {
                 printk(KERN_ERR "ath9k: 32-bit DMA consistent "
diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index e3569a0a952d..b1610ea4bb3d 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -492,8 +492,8 @@ static int __devinit p54p_probe(struct pci_dev *pdev,
                 goto err_disable_dev;
         }
 
-        if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
-            pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+        if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) ||
+            pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
                 dev_err(&pdev->dev, "No suitable DMA available\n");
                 goto err_free_reg;
         }
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 4fa3bb2ddfe4..33e5ade774ca 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -434,7 +434,8 @@ static void __init superio_parport_init(void)
                         0 /*base_hi*/,
                         PAR_IRQ, 
                         PARPORT_DMA_NONE /* dma */,
-                        NULL /*struct pci_dev* */) )
+                        NULL /*struct pci_dev* */),
+                        0 /* shared irq flags */ )
 
                 printk(KERN_WARNING PFX "Probing parallel port failed.\n");
 #endif  /* CONFIG_PARPORT_PC */
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 25a00ce4f24d..fa3a11365ec3 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -173,12 +173,21 @@ dmar_parse_one_drhd(struct acpi_dmar_header *header)
         struct dmar_drhd_unit *dmaru;
         int ret = 0;
 
+        drhd = (struct acpi_dmar_hardware_unit *)header;
+        if (!drhd->address) {
+                /* Promote an attitude of violence to a BIOS engineer today */
+                WARN(1, "Your BIOS is broken; DMAR reported at address zero!\n"
+                     "BIOS vendor: %s; Ver: %s; Product Version: %s\n",
+                     dmi_get_system_info(DMI_BIOS_VENDOR),
+                     dmi_get_system_info(DMI_BIOS_VERSION),
+                     dmi_get_system_info(DMI_PRODUCT_VERSION));
+                return -ENODEV;
+        }
         dmaru = kzalloc(sizeof(*dmaru), GFP_KERNEL);
         if (!dmaru)
                 return -ENOMEM;
 
         dmaru->hdr = header;
-        drhd = (struct acpi_dmar_hardware_unit *)header;
         dmaru->reg_base_addr = drhd->address;
         dmaru->segment = drhd->segment;
         dmaru->include_all = drhd->flags & 0x1; /* BIT0: INCLUDE_ALL */
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index fb3a3f3fca7a..001b328adf80 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -733,8 +733,8 @@ static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end)
         start &= (((u64)1) << addr_width) - 1;
         end &= (((u64)1) << addr_width) - 1;
         /* in case it's partial page */
-        start = PAGE_ALIGN(start);
-        end &= PAGE_MASK;
+        start &= PAGE_MASK;
+        end = PAGE_ALIGN(end);
         npages = (end - start) / VTD_PAGE_SIZE;
 
         /* we don't need lock here, nobody else touches the iova range */
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index fdb14ec4fd47..8b7983aba8f7 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2234,10 +2234,10 @@ static int twa_resume(struct pci_dev *pdev)
         pci_set_master(pdev);
         pci_try_set_mwi(pdev);
 
-        if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)
-            || pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
-                if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)
-                    || pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+        if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+            || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+                if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+                    || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
                         TW_PRINTK(host, TW_DRIVER, 0x40, "Failed to set dma mask during resume");
                         retval = -ENODEV;
                         goto out_disable_device;
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 280261c451d6..2a889853a106 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1378,7 +1378,7 @@ int aac_get_adapter_info(struct aac_dev* dev)
         if (dev->nondasd_support && !dev->in_reset)
                 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 
-        if (dma_get_required_mask(&dev->pdev->dev) > DMA_32BIT_MASK)
+        if (dma_get_required_mask(&dev->pdev->dev) > DMA_BIT_MASK(32))
                 dev->needs_dac = 1;
         dev->dac_support = 0;
         if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b1bd3fc7bae8..36fd2e75da1c 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1394,7 +1394,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
                  */
                 cmd->sense_buffer[8] = 0;     /* Information */
                 cmd->sense_buffer[9] = 0xa;   /* Add. length */
-                do_div(bghm, cmd->device->sector_size);
+                bghm /= cmd->device->sector_size;
 
                 failing_sector = scsi_get_lba(cmd);
                 failing_sector += bghm;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 52427a8324f5..a91f5143ceac 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -855,9 +855,9 @@ _base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
         if (sizeof(dma_addr_t) > 4) {
                 const uint64_t required_mask =
                     dma_get_required_mask(&pdev->dev);
-                if ((required_mask > DMA_32BIT_MASK) && !pci_set_dma_mask(pdev,
-                    DMA_64BIT_MASK) && !pci_set_consistent_dma_mask(pdev,
-                    DMA_64BIT_MASK)) {
+                if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
+                    DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
+                    DMA_BIT_MASK(64))) {
                         ioc->base_add_sg_single = &_base_add_sg_single_64;
                         ioc->sge_size = sizeof(Mpi2SGESimple64_t);
                         desc = "64";
@@ -865,8 +865,8 @@ _base_config_dma_addressing(struct MPT2SAS_ADAPTER *ioc, struct pci_dev *pdev)
                 }
         }
 
-        if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)
-            && !pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+        if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+            && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
                 ioc->base_add_sg_single = &_base_add_sg_single_32;
                 ioc->sge_size = sizeof(Mpi2SGESimple32_t);
                 desc = "32";
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index e1850904ff73..fbc83bebdd8e 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -38,9 +38,6 @@ static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
         { };
 #endif
 
-/* scsi_scan.c */
-int scsi_complete_async_scans(void);
-
 /* scsi_devinfo.c */
 extern int scsi_get_device_flags(struct scsi_device *sdev,
                                  const unsigned char *vendor,
diff --git a/drivers/scsi/scsi_wait_scan.c b/drivers/scsi/scsi_wait_scan.c
index 8a636103083d..2f21af21269a 100644
--- a/drivers/scsi/scsi_wait_scan.c
+++ b/drivers/scsi/scsi_wait_scan.c
@@ -11,7 +11,7 @@
  */
 
 #include <linux/module.h>
-#include "scsi_priv.h"
+#include <scsi/scsi_scan.h>
 
 static int __init wait_scan_init(void)
 {
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 0328fd4006e5..343e3a35b6a3 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -854,7 +854,7 @@ config SERIAL_IMX_CONSOLE
 
 config SERIAL_UARTLITE
         tristate "Xilinx uartlite serial port support"
-        depends on PPC32
+        depends on PPC32 || MICROBLAZE
         select SERIAL_CORE
         help
           Say Y here if you want to use the Xilinx uartlite serial controller.
@@ -1340,7 +1340,7 @@ config SERIAL_NETX_CONSOLE
 
 config SERIAL_OF_PLATFORM
         tristate "Serial port on Open Firmware platform bus"
-        depends on PPC_OF
+        depends on PPC_OF || MICROBLAZE
         depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
         help
           If you have a PowerPC based system that has serial ports
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 7fb9b5c4669a..12d13d99b6f0 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -44,6 +44,7 @@ struct intc_handle_int {
 struct intc_desc_int {
         struct list_head list;
         struct sys_device sysdev;
+        pm_message_t state;
         unsigned long *reg;
 #ifdef CONFIG_SMP
         unsigned long *smp;
@@ -786,18 +787,44 @@ static int intc_suspend(struct sys_device *dev, pm_message_t state)
         /* get intc controller associated with this sysdev */
         d = container_of(dev, struct intc_desc_int, sysdev);
 
-        /* enable wakeup irqs belonging to this intc controller */
-        for_each_irq_desc(irq, desc) {
-                if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
-                        intc_enable(irq);
+        switch (state.event) {
+        case PM_EVENT_ON:
+                if (d->state.event != PM_EVENT_FREEZE)
+                        break;
+                for_each_irq_desc(irq, desc) {
+                        if (desc->chip != &d->chip)
+                                continue;
+                        if (desc->status & IRQ_DISABLED)
+                                intc_disable(irq);
+                        else
+                                intc_enable(irq);
+                }
+                break;
+        case PM_EVENT_FREEZE:
+                /* nothing has to be done */
+                break;
+        case PM_EVENT_SUSPEND:
+                /* enable wakeup irqs belonging to this intc controller */
+                for_each_irq_desc(irq, desc) {
+                        if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
+                                intc_enable(irq);
+                }
+                break;
         }
+        d->state = state;
 
         return 0;
 }
 
+static int intc_resume(struct sys_device *dev)
+{
+        return intc_suspend(dev, PMSG_ON);
+}
+
 static struct sysdev_class intc_sysdev_class = {
         .name = "intc",
         .suspend = intc_suspend,
+        .resume = intc_resume,
 };
 
 /* register this intc as sysdev to allow suspend/resume */
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 643908b74bc0..8eba98c8ed1e 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -658,7 +658,7 @@ int spi_write_then_read(struct spi_device *spi,
 
         int                     status;
         struct spi_message      message;
-        struct spi_transfer     x;
+        struct spi_transfer     x[2];
         u8                      *local_buf;
 
         /* Use preallocated DMA-safe buffer.  We can't avoid copying here,
@@ -669,9 +669,15 @@ int spi_write_then_read(struct spi_device *spi,
                 return -EINVAL;
 
         spi_message_init(&message);
-        memset(&x, 0, sizeof x);
-        x.len = n_tx + n_rx;
-        spi_message_add_tail(&x, &message);
+        memset(x, 0, sizeof x);
+        if (n_tx) {
+                x[0].len = n_tx;
+                spi_message_add_tail(&x[0], &message);
+        }
+        if (n_rx) {
+                x[1].len = n_rx;
+                spi_message_add_tail(&x[1], &message);
+        }
 
         /* ... unless someone else is using the pre-allocated buffer */
         if (!mutex_trylock(&lock)) {
@@ -682,15 +688,15 @@ int spi_write_then_read(struct spi_device *spi,
                 local_buf = buf;
 
         memcpy(local_buf, txbuf, n_tx);
-        x.tx_buf = local_buf;
-        x.rx_buf = local_buf;
+        x[0].tx_buf = local_buf;
+        x[1].rx_buf = local_buf + n_tx;
 
         /* do the i/o */
         status = spi_sync(spi, &message);
         if (status == 0)
-                memcpy(rxbuf, x.rx_buf + n_tx, n_rx);
+                memcpy(rxbuf, x[1].rx_buf, n_rx);
 
-        if (x.tx_buf == buf)
+        if (x[0].tx_buf == buf)
                 mutex_unlock(&lock);
         else
                 kfree(local_buf);
diff --git a/drivers/staging/b3dfg/b3dfg.c b/drivers/staging/b3dfg/b3dfg.c
index 0348072b3ab5..75ebe338c6f2 100644
--- a/drivers/staging/b3dfg/b3dfg.c
+++ b/drivers/staging/b3dfg/b3dfg.c
@@ -1000,7 +1000,7 @@ static int __devinit b3dfg_probe(struct pci_dev *pdev,
 
         pci_set_master(pdev);
 
-        r = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+        r = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
         if (r) {
                 dev_err(&pdev->dev, "no usable DMA configuration\n");
                 goto err_free_res;
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 869d47cb6db3..0a69c0977e3f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -546,10 +546,6 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp)
         tty->driver_data = acm;
         acm->tty = tty;
 
-        /* force low_latency on so that our tty_push actually forces the data through,
-           otherwise it is scheduled, and with high data rates data can get lost. */
-        tty->low_latency = 1;
-
         if (usb_autopm_get_interface(acm->control) < 0)
                 goto early_bail;
         else
diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c
index 4b933f646f2e..c567168f89af 100644
--- a/drivers/usb/otg/nop-usb-xceiv.c
+++ b/drivers/usb/otg/nop-usb-xceiv.c
@@ -36,14 +36,14 @@ struct nop_usb_xceiv {
         struct device           *dev;
 };
 
-static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device nop_xceiv_device = {
         .name           = "nop_usb_xceiv",
         .id             = -1,
         .dev = {
                 .dma_mask               = &nop_xceiv_dmamask,
-                .coherent_dma_mask      = DMA_32BIT_MASK,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
                 .platform_data          = NULL,
         },
 };
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 2620bf6fe5e1..9c4c700c7cc6 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1215,20 +1215,22 @@ static void ti_bulk_in_callback(struct urb *urb)
         }
 
         tty = tty_port_tty_get(&port->port);
-        if (tty && urb->actual_length) {
-                usb_serial_debug_data(debug, dev, __func__,
-                        urb->actual_length, urb->transfer_buffer);
-
-                if (!tport->tp_is_open)
-                        dbg("%s - port closed, dropping data", __func__);
-                else
-                        ti_recv(&urb->dev->dev, tty,
+        if (tty) {
+                if (urb->actual_length) {
+                        usb_serial_debug_data(debug, dev, __func__,
+                                urb->actual_length, urb->transfer_buffer);
+
+                        if (!tport->tp_is_open)
+                                dbg("%s - port closed, dropping data",
+                                        __func__);
+                        else
+                                ti_recv(&urb->dev->dev, tty,
                                                 urb->transfer_buffer,
                                                 urb->actual_length);
-
-                spin_lock(&tport->tp_lock);
-                tport->tp_icount.rx += urb->actual_length;
-                spin_unlock(&tport->tp_lock);
+                        spin_lock(&tport->tp_lock);
+                        tport->tp_icount.rx += urb->actual_length;
+                        spin_unlock(&tport->tp_lock);
+                }
                 tty_kref_put(tty);
         }
 
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index 16bb7e3c0310..6c37e8ee5efe 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -698,8 +698,8 @@ static void __devinit radeon_get_pllinfo(struct radeonfb_info *rinfo)
 found:
         /*
          * Some methods fail to retrieve SCLK and MCLK values, we apply default
-         * settings in this case (200Mhz). If that really happne often, we could
-         * fetch from registers instead...
+         * settings in this case (200Mhz). If that really happens often, we
+         * could fetch from registers instead...
          */
         if (rinfo->pll.mclk == 0)
                 rinfo->pll.mclk = 20000;
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index dd37cbcaf8ce..157057c79ca3 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -35,8 +35,6 @@ static int fb_notifier_callback(struct notifier_block *self,
                 return 0;
 
         bd = container_of(self, struct backlight_device, fb_notif);
-        if (!lock_fb_info(evdata->info))
-                return -ENODEV;
         mutex_lock(&bd->ops_lock);
         if (bd->ops)
                 if (!bd->ops->check_fb ||
@@ -49,7 +47,6 @@ static int fb_notifier_callback(struct notifier_block *self,
                         backlight_update_status(bd);
                 }
         mutex_unlock(&bd->ops_lock);
-        unlock_fb_info(evdata->info);
         return 0;
 }
 
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 0bb13df0fa89..b6449470106c 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -40,8 +40,6 @@ static int fb_notifier_callback(struct notifier_block *self,
         if (!ld->ops)
                 return 0;
 
-        if (!lock_fb_info(evdata->info))
-                return -ENODEV;
         mutex_lock(&ld->ops_lock);
         if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info)) {
                 if (event == FB_EVENT_BLANK) {
@@ -53,7 +51,6 @@ static int fb_notifier_callback(struct notifier_block *self,
                 }
         }
         mutex_unlock(&ld->ops_lock);
-        unlock_fb_info(evdata->info);
         return 0;
 }
 
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index d42e385f091c..4c2bf923418c 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -567,9 +567,7 @@ static int cirrusfb_check_var(struct fb_var_screeninfo *var,
         default:
                 dev_dbg(info->device,
                         "Unsupported bpp size: %d\n", var->bits_per_pixel);
-                assert(false);
-                /* should never occur */
-                break;
+                return -EINVAL;
         }
 
         if (var->xres_virtual < var->xres)
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 2cd500a304f2..471a9a60376a 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2263,9 +2263,12 @@ static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info,
         }
 
 
+        if (!lock_fb_info(info))
+                return;
         event.info = info;
         event.data = &blank;
         fb_notifier_call_chain(FB_EVENT_CONBLANK, &event);
+        unlock_fb_info(info);
 }
 
 static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
@@ -2956,8 +2959,6 @@ static int fbcon_fb_unregistered(struct fb_info *info)
 {
         int i, idx;
 
-        if (!lock_fb_info(info))
-                return -ENODEV;
         idx = info->node;
         for (i = first_fb_vc; i <= last_fb_vc; i++) {
                 if (con2fb_map[i] == idx)
@@ -2985,8 +2986,6 @@ static int fbcon_fb_unregistered(struct fb_info *info)
         if (primary_device == idx)
                 primary_device = -1;
 
-        unlock_fb_info(info);
-
         if (!num_registered_fb)
                 unregister_con_driver(&fb_con);
 
@@ -3027,11 +3026,8 @@ static int fbcon_fb_registered(struct fb_info *info)
 {
         int ret = 0, i, idx;
 
-        if (!lock_fb_info(info))
-                return -ENODEV;
         idx = info->node;
         fbcon_select_primary(info);
-        unlock_fb_info(info);
 
         if (info_idx == -1) {
                 for (i = first_fb_vc; i <= last_fb_vc; i++) {
@@ -3152,53 +3148,23 @@ static int fbcon_event_notify(struct notifier_block *self,
 
         switch(action) {
         case FB_EVENT_SUSPEND:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_suspended(info);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_RESUME:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_resumed(info);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_MODE_CHANGE:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_modechanged(info);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_MODE_CHANGE_ALL:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_set_all_vcs(info);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_MODE_DELETE:
                 mode = event->data;
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 ret = fbcon_mode_deleted(info, mode);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_FB_UNBIND:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 idx = info->node;
-                unlock_fb_info(info);
                 ret = fbcon_fb_unbind(idx);
                 break;
         case FB_EVENT_FB_REGISTERED:
@@ -3217,29 +3183,14 @@ static int fbcon_event_notify(struct notifier_block *self,
                 con2fb->framebuffer = con2fb_map[con2fb->console - 1];
                 break;
         case FB_EVENT_BLANK:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_fb_blanked(info, *(int *)event->data);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_NEW_MODELIST:
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_new_modelist(info);
-                unlock_fb_info(info);
                 break;
         case FB_EVENT_GET_REQ:
                 caps = event->data;
-                if (!lock_fb_info(info)) {
-                        ret = -ENODEV;
-                        goto done;
-                }
                 fbcon_get_requirement(info, caps);
-                unlock_fb_info(info);
                 break;
         }
 done:
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 0c5b9a9fd56f..8dea2bc92705 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -210,12 +210,15 @@ static int __init efifb_probe(struct platform_device *dev)
         unsigned int size_total;
         int request_succeeded = 0;
 
-        printk(KERN_INFO "efifb: probing for efifb\n");
-
         if (!screen_info.lfb_depth)
                 screen_info.lfb_depth = 32;
         if (!screen_info.pages)
                 screen_info.pages = 1;
+        if (!screen_info.lfb_base) {
+                printk(KERN_DEBUG "efifb: invalid framebuffer address\n");
+                return -ENODEV;
+        }
+        printk(KERN_INFO "efifb: probing for efifb\n");
 
         /* just assume they're all unset if any are */
         if (!screen_info.blue_size) {
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 2ac32e6b5953..d412a1ddc12f 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1097,8 +1097,11 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
                         return -EINVAL;
                 con2fb.framebuffer = -1;
                 event.data = &con2fb;
+                if (!lock_fb_info(info))
+                        return -ENODEV;
                 event.info = info;
                 fb_notifier_call_chain(FB_EVENT_GET_CONSOLE_MAP, &event);
+                unlock_fb_info(info);
                 ret = copy_to_user(argp, &con2fb, sizeof(con2fb)) ? -EFAULT : 0;
                 break;
         case FBIOPUT_CON2FBMAP:
@@ -1115,8 +1118,11 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
                         break;
                 }
                 event.data = &con2fb;
+                if (!lock_fb_info(info))
+                        return -ENODEV;
                 event.info = info;
                 ret = fb_notifier_call_chain(FB_EVENT_SET_CONSOLE_MAP, &event);
+                unlock_fb_info(info);
                 break;
         case FBIOBLANK:
                 if (!lock_fb_info(info))
@@ -1521,7 +1527,10 @@ register_framebuffer(struct fb_info *fb_info)
         registered_fb[i] = fb_info;
 
         event.info = fb_info;
+        if (!lock_fb_info(fb_info))
+                return -ENODEV;
         fb_notifier_call_chain(FB_EVENT_FB_REGISTERED, &event);
+        unlock_fb_info(fb_info);
         return 0;
 }
 
@@ -1555,8 +1564,12 @@ unregister_framebuffer(struct fb_info *fb_info)
                 goto done;
         }
 
+
+        if (!lock_fb_info(fb_info))
+                return -ENODEV;
         event.info = fb_info;
         ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event);
+        unlock_fb_info(fb_info);
 
         if (ret) {
                 ret = -EINVAL;
@@ -1590,6 +1603,8 @@ void fb_set_suspend(struct fb_info *info, int state)
 {
         struct fb_event event;
 
+        if (!lock_fb_info(info))
+                return;
         event.info = info;
         if (state) {
                 fb_notifier_call_chain(FB_EVENT_SUSPEND, &event);
@@ -1598,6 +1613,7 @@ void fb_set_suspend(struct fb_info *info, int state)
                 info->state = FBINFO_STATE_RUNNING;
                 fb_notifier_call_chain(FB_EVENT_RESUME, &event);
         }
+        unlock_fb_info(info);
 }
 
 /**
@@ -1667,8 +1683,11 @@ int fb_new_modelist(struct fb_info *info)
         err = 1;
 
         if (!list_empty(&info->modelist)) {
+                if (!lock_fb_info(info))
+                        return -ENODEV;
                 event.info = info;
                 err = fb_notifier_call_chain(FB_EVENT_NEW_MODELIST, &event);
+                unlock_fb_info(info);
         }
 
         return err;
diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h
index a50bea614804..40984551c927 100644
--- a/drivers/video/intelfb/intelfb.h
+++ b/drivers/video/intelfb/intelfb.h
@@ -53,6 +53,7 @@
 #define PCI_DEVICE_ID_INTEL_830M        0x3577
 #define PCI_DEVICE_ID_INTEL_845G        0x2562
 #define PCI_DEVICE_ID_INTEL_85XGM       0x3582
+#define PCI_DEVICE_ID_INTEL_854         0x358E
 #define PCI_DEVICE_ID_INTEL_865G        0x2572
 #define PCI_DEVICE_ID_INTEL_915G        0x2582
 #define PCI_DEVICE_ID_INTEL_915GM       0x2592
@@ -154,6 +155,7 @@ enum intel_chips {
         INTEL_85XGM,
         INTEL_852GM,
         INTEL_852GME,
+        INTEL_854,
         INTEL_855GM,
         INTEL_855GME,
         INTEL_865G,
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index b3065492bb20..487f2be47460 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -156,6 +156,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
         switch(dinfo->chipset) {
         case INTEL_830M:
         case INTEL_845G:
+        case INTEL_854:
         case INTEL_855GM:
         case INTEL_865G:
                 dinfo->output[i].type = INTELFB_OUTPUT_DVO;
diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index 6d8e5415c809..ace14fe02fc4 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -182,6 +182,7 @@ static struct pci_device_id intelfb_pci_table[] __devinitdata = {
         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G },
         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM },
         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G },
+        { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 },
         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G },
         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM },
         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G },
diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c
index 8b26b27c2db6..0689f97c5238 100644
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -84,6 +84,11 @@ int intelfbhw_get_chipset(struct pci_dev *pdev, struct intelfb_info *dinfo)
                 dinfo->mobile = 0;
                 dinfo->pll_index = PLLS_I8xx;
                 return 0;
+        case PCI_DEVICE_ID_INTEL_854:
+                dinfo->mobile = 1;
+                dinfo->name = "Intel(R) 854";
+                dinfo->chipset = INTEL_854;
+                return 0;
         case PCI_DEVICE_ID_INTEL_85XGM:
                 tmp = 0;
                 dinfo->mobile = 1;
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index 4dcec48a1d78..c3fad34309ed 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -45,11 +45,11 @@ struct s3fb_info {
 static const struct svga_fb_format s3fb_formats[] = {
         { 0,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
                 FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4,   FB_VISUAL_PSEUDOCOLOR, 8, 16},
-        { 4,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+        { 4,  {0, 4, 0},  {0, 4, 0},  {0, 4, 0}, {0, 0, 0}, 0,
                 FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_PSEUDOCOLOR, 8, 16},
-        { 4,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 1,
+        { 4,  {0, 4, 0},  {0, 4, 0},  {0, 4, 0}, {0, 0, 0}, 1,
                 FB_TYPE_INTERLEAVED_PLANES, 1,          FB_VISUAL_PSEUDOCOLOR, 8, 16},
-        { 8,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+        { 8,  {0, 8, 0},  {0, 8, 0},  {0, 8, 0}, {0, 0, 0}, 0,
                 FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_PSEUDOCOLOR, 4, 8},
         {16,  {10, 5, 0}, {5, 5, 0},  {0, 5, 0}, {0, 0, 0}, 0,
                 FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 2, 4},
diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c
index fad58cf9ef73..10ddad8e17d6 100644
--- a/drivers/video/sa1100fb.c
+++ b/drivers/video/sa1100fb.c
@@ -199,16 +199,20 @@
 extern void (*sa1100fb_backlight_power)(int on);
 extern void (*sa1100fb_lcd_power)(int on);
 
-/*
- * IMHO this looks wrong.  In 8BPP, length should be 8.
- */
-static struct sa1100fb_rgb rgb_8 = {
+static struct sa1100fb_rgb rgb_4 = {
         .red    = { .offset = 0,  .length = 4, },
         .green  = { .offset = 0,  .length = 4, },
         .blue   = { .offset = 0,  .length = 4, },
         .transp = { .offset = 0,  .length = 0, },
 };
 
+static struct sa1100fb_rgb rgb_8 = {
+        .red    = { .offset = 0,  .length = 8, },
+        .green  = { .offset = 0,  .length = 8, },
+        .blue   = { .offset = 0,  .length = 8, },
+        .transp = { .offset = 0,  .length = 0, },
+};
+
 static struct sa1100fb_rgb def_rgb_16 = {
         .red    = { .offset = 11, .length = 5, },
         .green  = { .offset = 5,  .length = 6, },
@@ -613,7 +617,7 @@ sa1100fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
         DPRINTK("var->bits_per_pixel=%d\n", var->bits_per_pixel);
         switch (var->bits_per_pixel) {
         case 4:
-                rgbidx = RGB_8;
+                rgbidx = RGB_4;
                 break;
         case 8:
                 rgbidx = RGB_8;
@@ -1382,6 +1386,7 @@ static struct sa1100fb_info * __init sa1100fb_init_fbinfo(struct device *dev)
         fbi->fb.monspecs        = monspecs;
         fbi->fb.pseudo_palette  = (fbi + 1);
 
+        fbi->rgb[RGB_4]         = &rgb_4;
         fbi->rgb[RGB_8]         = &rgb_8;
         fbi->rgb[RGB_16]        = &def_rgb_16;
 
diff --git a/drivers/video/sa1100fb.h b/drivers/video/sa1100fb.h
index 86831db9a042..1c3b459865d8 100644
--- a/drivers/video/sa1100fb.h
+++ b/drivers/video/sa1100fb.h
@@ -57,9 +57,10 @@ struct sa1100fb_lcd_reg {
         unsigned long lccr3;
 };
 
-#define RGB_8   (0)
-#define RGB_16  (1)
-#define NR_RGB  2
+#define RGB_4   (0)
+#define RGB_8   (1)
+#define RGB_16  (2)
+#define NR_RGB  3
 
 struct sa1100fb_info {
         struct fb_info          fb;
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 346d6458cf76..7e17ee95a97a 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1129,7 +1129,7 @@ sisfb_bpp_to_var(struct sis_video_info *ivideo, struct fb_var_screeninfo *var)
         switch(var->bits_per_pixel) {
         case 8:
                 var->red.offset = var->green.offset = var->blue.offset = 0;
-                var->red.length = var->green.length = var->blue.length = 6;
+                var->red.length = var->green.length = var->blue.length = 8;
                 break;
         case 16:
                 var->red.offset = 11;
diff --git a/drivers/video/skeletonfb.c b/drivers/video/skeletonfb.c
index a439159204a8..89158bc71da2 100644
--- a/drivers/video/skeletonfb.c
+++ b/drivers/video/skeletonfb.c
@@ -308,9 +308,11 @@ static int xxxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
      *   color depth = SUM(var->{color}.length)
      *
      * Pseudocolor:
-     *    var->{color}.offset is 0
-     *    var->{color}.length contains width of DAC or the number of unique
-     *                        colors available (color depth)
+     *    var->{color}.offset is 0 unless the palette index takes less than
+     *                        bits_per_pixel bits and is stored in the upper
+     *                        bits of the pixel value
+     *    var->{color}.length is set so that 1 << length is the number of
+     *                        available palette entries
      *    pseudo_palette is not used
      *    RAMDAC[X] is programmed to (red, green, blue)
      *    color depth = var->{color}.length
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 0b370aebdbfd..421770b5e6ab 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -55,6 +55,7 @@ static u16 maxvf	__devinitdata; /* maximum vertical frequency */
 static u16 maxhf        __devinitdata; /* maximum horizontal frequency */
 static u16 vbemode      __devinitdata; /* force use of a specific VBE mode */
 static char *mode_option __devinitdata;
+static u8  dac_width    = 6;
 
 static struct uvesafb_ktask *uvfb_tasks[UVESAFB_TASKS_MAX];
 static DEFINE_MUTEX(uvfb_lock);
@@ -303,22 +304,10 @@ static void uvesafb_setup_var(struct fb_var_screeninfo *var,
                 var->blue.offset   = 0;
                 var->transp.offset = 0;
 
-                /*
-                 * We're assuming that we can switch the DAC to 8 bits. If
-                 * this proves to be incorrect, we'll update the fields
-                 * later in set_par().
-                 */
-                if (par->vbe_ib.capabilities & VBE_CAP_CAN_SWITCH_DAC) {
-                        var->red.length    = 8;
-                        var->green.length  = 8;
-                        var->blue.length   = 8;
-                        var->transp.length = 0;
-                } else {
-                        var->red.length    = 6;
-                        var->green.length  = 6;
-                        var->blue.length   = 6;
-                        var->transp.length = 0;
-                }
+                var->red.length    = 8;
+                var->green.length  = 8;
+                var->blue.length   = 8;
+                var->transp.length = 0;
         }
 }
 
@@ -1006,7 +995,7 @@ static int uvesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
                 struct fb_info *info)
 {
         struct uvesafb_pal_entry entry;
-        int shift = 16 - info->var.green.length;
+        int shift = 16 - dac_width;
         int err = 0;
 
         if (regno >= info->cmap.len)
@@ -1055,7 +1044,7 @@ static int uvesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 static int uvesafb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
 {
         struct uvesafb_pal_entry *entries;
-        int shift = 16 - info->var.green.length;
+        int shift = 16 - dac_width;
         int i, err = 0;
 
         if (info->var.bits_per_pixel == 8) {
@@ -1317,13 +1306,9 @@ setmode:
                 err = uvesafb_exec(task);
                 if (err || (task->t.regs.eax & 0xffff) != 0x004f ||
                     ((task->t.regs.ebx & 0xff00) >> 8) != 8) {
-                        /*
-                         * We've failed to set the DAC palette format -
-                         * time to correct var.
-                         */
-                        info->var.red.length    = 6;
-                        info->var.green.length  = 6;
-                        info->var.blue.length   = 6;
+                        dac_width = 6;
+                } else {
+                        dac_width = 8;
                 }
         }
 
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index cc919ae46571..050d432c7d95 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -318,13 +318,16 @@ static int vfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
          *   {hardwarespecific} contains width of RAMDAC
          *   cmap[X] is programmed to (X << red.offset) | (X << green.offset) | (X << blue.offset)
          *   RAMDAC[X] is programmed to (red, green, blue)
-         * 
+         *
          * Pseudocolor:
-         *    uses offset = 0 && length = RAMDAC register width.
-         *    var->{color}.offset is 0
-         *    var->{color}.length contains widht of DAC
+         *    var->{color}.offset is 0 unless the palette index takes less than
+         *                        bits_per_pixel bits and is stored in the upper
+         *                        bits of the pixel value
+         *    var->{color}.length is set so that 1 << length is the number of available
+         *                        palette entries
          *    cmap is not used
          *    RAMDAC[X] is programmed to (red, green, blue)
+         *
          * Truecolor:
          *    does not use DAC. Usually 3 are present.
          *    var->{color}.offset contains start of bitfield
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 63024145215d..5eb8f21da82e 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -240,8 +240,6 @@ config ORION5X_WATCHDOG
           To compile this driver as a module, choose M here: the
           module will be called orion5x_wdt.
 
-# ARM26 Architecture
-
 # AVR32 Architecture
 
 config AT32AP700X_WDT
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 806b3eb08536..7f8c56b14f58 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -42,8 +42,6 @@ obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o
 obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o
 obj-$(CONFIG_ORION5X_WATCHDOG) += orion5x_wdt.o
 
-# ARM26 Architecture
-
 # AVR32 Architecture
 obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
 
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index e35d54589232..29e52c237a3b 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -197,7 +197,7 @@ static struct miscdevice at91wdt_miscdev = {
         .fops           = &at91wdt_fops,
 };
 
-static int __init at91wdt_probe(struct platform_device *pdev)
+static int __devinit at91wdt_probe(struct platform_device *pdev)
 {
         int res;
 
@@ -214,7 +214,7 @@ static int __init at91wdt_probe(struct platform_device *pdev)
         return 0;
 }
 
-static int __exit at91wdt_remove(struct platform_device *pdev)
+static int __devexit at91wdt_remove(struct platform_device *pdev)
 {
         int res;
 
@@ -252,7 +252,7 @@ static int at91wdt_resume(struct platform_device *pdev)
 
 static struct platform_driver at91wdt_driver = {
         .probe          = at91wdt_probe,
-        .remove         = __exit_p(at91wdt_remove),
+        .remove         = __devexit_p(at91wdt_remove),
         .shutdown       = at91wdt_shutdown,
         .suspend        = at91wdt_suspend,
         .resume         = at91wdt_resume,
diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c
index 2dbe83570d65..7ba0b11ec525 100644
--- a/drivers/watchdog/i6300esb.c
+++ b/drivers/watchdog/i6300esb.c
@@ -52,10 +52,10 @@
 #define ESB_LOCK_REG    0x68            /* WDT lock register                 */
 
 /* Memory mapped registers */
-#define ESB_TIMER1_REG  BASEADDR + 0x00 /* Timer1 value after each reset     */
-#define ESB_TIMER2_REG  BASEADDR + 0x04 /* Timer2 value after each reset     */
-#define ESB_GINTSR_REG  BASEADDR + 0x08 /* General Interrupt Status Register */
-#define ESB_RELOAD_REG  BASEADDR + 0x0c /* Reload register                   */
+#define ESB_TIMER1_REG (BASEADDR + 0x00)/* Timer1 value after each reset     */
+#define ESB_TIMER2_REG (BASEADDR + 0x04)/* Timer2 value after each reset     */
+#define ESB_GINTSR_REG (BASEADDR + 0x08)/* General Interrupt Status Register */
+#define ESB_RELOAD_REG (BASEADDR + 0x0c)/* Reload register                   */
 
 /* Lock register bits */
 #define ESB_WDT_FUNC    (0x01 << 2)   /* Watchdog functionality            */
@@ -68,6 +68,7 @@
 #define ESB_WDT_INTTYPE (0x11 << 0)   /* Interrupt type on timer1 timeout  */
 
 /* Reload register bits */
+#define ESB_WDT_TIMEOUT (0x01 << 9)    /* Watchdog timed out                */
 #define ESB_WDT_RELOAD  (0x01 << 8)    /* prevent timeout                   */
 
 /* Magic constants */
@@ -87,7 +88,6 @@ static struct platform_device *esb_platform_device;
 /* 30 sec default heartbeat (1 < heartbeat < 2*1023) */
 #define WATCHDOG_HEARTBEAT 30
 static int heartbeat = WATCHDOG_HEARTBEAT;  /* in seconds */
-
 module_param(heartbeat, int, 0);
 MODULE_PARM_DESC(heartbeat,
                 "Watchdog heartbeat in seconds. (1<heartbeat<2046, default="
@@ -123,7 +123,7 @@ static int esb_timer_start(void)
         esb_unlock_registers();
         writew(ESB_WDT_RELOAD, ESB_RELOAD_REG);
         /* Enable or Enable + Lock? */
-        val = 0x02 | (nowayout ? 0x01 : 0x00);
+        val = ESB_WDT_ENABLE | (nowayout ? ESB_WDT_LOCK : 0x00);
         pci_write_config_byte(esb_pci, ESB_LOCK_REG, val);
         spin_unlock(&esb_lock);
         return 0;
@@ -143,7 +143,7 @@ static int esb_timer_stop(void)
         spin_unlock(&esb_lock);
 
         /* Returns 0 if the timer was disabled, non-zero otherwise */
-        return (val & 0x01);
+        return val & ESB_WDT_ENABLE;
 }
 
 static void esb_timer_keepalive(void)
@@ -190,18 +190,6 @@ static int esb_timer_set_heartbeat(int time)
         return 0;
 }
 
-static int esb_timer_read(void)
-{
-        u32 count;
-
-        /* This isn't documented, and doesn't take into
-         * acount which stage is running, but it looks
-         * like a 20 bit count down, so we might as well report it.
-         */
-        pci_read_config_dword(esb_pci, 0x64, &count);
-        return (int)count;
-}
-
 /*
  *      /dev/watchdog handling
  */
@@ -282,7 +270,7 @@ static long esb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                                         sizeof(ident)) ? -EFAULT : 0;
 
         case WDIOC_GETSTATUS:
-                return put_user(esb_timer_read(), p);
+                return put_user(0, p);
 
         case WDIOC_GETBOOTSTATUS:
                 return put_user(triggered, p);
@@ -362,8 +350,6 @@ MODULE_DEVICE_TABLE(pci, esb_pci_tbl);
 
 static unsigned char __devinit esb_getdevice(void)
 {
-        u8 val1;
-        unsigned short val2;
         /*
          *      Find the PCI device
          */
@@ -371,66 +357,79 @@ static unsigned char __devinit esb_getdevice(void)
         esb_pci = pci_get_device(PCI_VENDOR_ID_INTEL,
                                         PCI_DEVICE_ID_INTEL_ESB_9, NULL);
 
-        if (esb_pci) {
-                if (pci_enable_device(esb_pci)) {
-                        printk(KERN_ERR PFX "failed to enable device\n");
-                        goto err_devput;
-                }
+        if (!esb_pci)
+                return 0;
 
-                if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
-                        printk(KERN_ERR PFX "failed to request region\n");
-                        goto err_disable;
-                }
+        if (pci_enable_device(esb_pci)) {
+                printk(KERN_ERR PFX "failed to enable device\n");
+                goto err_devput;
+        }
 
-                BASEADDR = pci_ioremap_bar(esb_pci, 0);
-                if (BASEADDR == NULL) {
-                        /* Something's wrong here, BASEADDR has to be set */
-                        printk(KERN_ERR PFX "failed to get BASEADDR\n");
-                        goto err_release;
-                }
+        if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
+                printk(KERN_ERR PFX "failed to request region\n");
+                goto err_disable;
+        }
 
-                /*
-                 * The watchdog has two timers, it can be setup so that the
-                 * expiry of timer1 results in an interrupt and the expiry of
-                 * timer2 results in a reboot. We set it to not generate
-                 * any interrupts as there is not much we can do with it
-                 * right now.
-                 *
-                 * We also enable reboots and set the timer frequency to
-                 * the PCI clock divided by 2^15 (approx 1KHz).
-                 */
-                pci_write_config_word(esb_pci, ESB_CONFIG_REG, 0x0003);
-
-                /* Check that the WDT isn't already locked */
-                pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
-                if (val1 & ESB_WDT_LOCK)
-                        printk(KERN_WARNING PFX "nowayout already set\n");
-
-                /* Set the timer to watchdog mode and disable it for now */
-                pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
-
-                /* Check if the watchdog was previously triggered */
-                esb_unlock_registers();
-                val2 = readw(ESB_RELOAD_REG);
-                triggered = (val2 & (0x01 << 9) >> 9);
-
-                /* Reset trigger flag and timers */
-                esb_unlock_registers();
-                writew((0x11 << 8), ESB_RELOAD_REG);
-
-                /* Done */
-                return 1;
+        BASEADDR = pci_ioremap_bar(esb_pci, 0);
+        if (BASEADDR == NULL) {
+                /* Something's wrong here, BASEADDR has to be set */
+                printk(KERN_ERR PFX "failed to get BASEADDR\n");
+                goto err_release;
+        }
+
+        /* Done */
+        return 1;
 
 err_release:
-                pci_release_region(esb_pci, 0);
+        pci_release_region(esb_pci, 0);
 err_disable:
-                pci_disable_device(esb_pci);
+        pci_disable_device(esb_pci);
 err_devput:
-                pci_dev_put(esb_pci);
-        }
+        pci_dev_put(esb_pci);
         return 0;
 }
 
+static void __devinit esb_initdevice(void)
+{
+        u8 val1;
+        u16 val2;
+
+        /*
+         * Config register:
+         * Bit    5 : 0 = Enable WDT_OUTPUT
+         * Bit    2 : 0 = set the timer frequency to the PCI clock
+         * divided by 2^15 (approx 1KHz).
+         * Bits 1:0 : 11 = WDT_INT_TYPE Disabled.
+         * The watchdog has two timers, it can be setup so that the
+         * expiry of timer1 results in an interrupt and the expiry of
+         * timer2 results in a reboot. We set it to not generate
+         * any interrupts as there is not much we can do with it
+         * right now.
+         */
+        pci_write_config_word(esb_pci, ESB_CONFIG_REG, 0x0003);
+
+        /* Check that the WDT isn't already locked */
+        pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
+        if (val1 & ESB_WDT_LOCK)
+                printk(KERN_WARNING PFX "nowayout already set\n");
+
+        /* Set the timer to watchdog mode and disable it for now */
+        pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
+
+        /* Check if the watchdog was previously triggered */
+        esb_unlock_registers();
+        val2 = readw(ESB_RELOAD_REG);
+        if (val2 & ESB_WDT_TIMEOUT)
+                triggered = WDIOF_CARDRESET;
+
+        /* Reset WDT_TIMEOUT flag and timers */
+        esb_unlock_registers();
+        writew((ESB_WDT_TIMEOUT | ESB_WDT_RELOAD), ESB_RELOAD_REG);
+
+        /* And set the correct timeout value */
+        esb_timer_set_heartbeat(heartbeat);
+}
+
 static int __devinit esb_probe(struct platform_device *dev)
 {
         int ret;
@@ -441,13 +440,17 @@ static int __devinit esb_probe(struct platform_device *dev)
 
         /* Check that the heartbeat value is within it's range;
            if not reset to the default */
-        if (esb_timer_set_heartbeat(heartbeat)) {
-                esb_timer_set_heartbeat(WATCHDOG_HEARTBEAT);
+        if (heartbeat < 0x1 || heartbeat > 2 * 0x03ff) {
+                heartbeat = WATCHDOG_HEARTBEAT;
                 printk(KERN_INFO PFX
                         "heartbeat value must be 1<heartbeat<2046, using %d\n",
                                                                 heartbeat);
         }
 
+        /* Initialize the watchdog and make sure it does not run */
+        esb_initdevice();
+
+        /* Register the watchdog so that userspace has access to it */
         ret = misc_register(&esb_miscdev);
         if (ret != 0) {
                 printk(KERN_ERR PFX
@@ -455,7 +458,6 @@ static int __devinit esb_probe(struct platform_device *dev)
                                                         WATCHDOG_MINOR, ret);
                 goto err_unmap;
         }
-        esb_timer_stop();
         printk(KERN_INFO PFX
                 "initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
                                                 BASEADDR, heartbeat, nowayout);
@@ -463,11 +465,8 @@ static int __devinit esb_probe(struct platform_device *dev)
 
 err_unmap:
         iounmap(BASEADDR);
-/* err_release: */
         pci_release_region(esb_pci, 0);
-/* err_disable: */
         pci_disable_device(esb_pci);
-/* err_devput: */
         pci_dev_put(esb_pci);
         return ret;
 }
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 74c92d384112..ae3832110acb 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -221,7 +221,7 @@ static struct miscdevice ks8695wdt_miscdev = {
         .fops           = &ks8695wdt_fops,
 };
 
-static int __init ks8695wdt_probe(struct platform_device *pdev)
+static int __devinit ks8695wdt_probe(struct platform_device *pdev)
 {
         int res;
 
@@ -238,7 +238,7 @@ static int __init ks8695wdt_probe(struct platform_device *pdev)
         return 0;
 }
 
-static int __exit ks8695wdt_remove(struct platform_device *pdev)
+static int __devexit ks8695wdt_remove(struct platform_device *pdev)
 {
         int res;
 
@@ -276,7 +276,7 @@ static int ks8695wdt_resume(struct platform_device *pdev)
 
 static struct platform_driver ks8695wdt_driver = {
         .probe          = ks8695wdt_probe,
-        .remove         = __exit_p(ks8695wdt_remove),
+        .remove         = __devexit_p(ks8695wdt_remove),
         .shutdown       = ks8695wdt_shutdown,
         .suspend        = ks8695wdt_suspend,
         .resume         = ks8695wdt_resume,
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index aa5ad6e33f02..f2713851aaab 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -258,7 +258,7 @@ static const struct file_operations omap_wdt_fops = {
         .release = omap_wdt_release,
 };
 
-static int __init omap_wdt_probe(struct platform_device *pdev)
+static int __devinit omap_wdt_probe(struct platform_device *pdev)
 {
         struct resource *res, *mem;
         struct omap_wdt_dev *wdev;
@@ -367,7 +367,7 @@ static void omap_wdt_shutdown(struct platform_device *pdev)
                 omap_wdt_disable(wdev);
 }
 
-static int omap_wdt_remove(struct platform_device *pdev)
+static int __devexit omap_wdt_remove(struct platform_device *pdev)
 {
         struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
         struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -426,7 +426,7 @@ static int omap_wdt_resume(struct platform_device *pdev)
 
 static struct platform_driver omap_wdt_driver = {
         .probe          = omap_wdt_probe,
-        .remove         = omap_wdt_remove,
+        .remove         = __devexit_p(omap_wdt_remove),
         .shutdown       = omap_wdt_shutdown,
         .suspend        = omap_wdt_suspend,
         .resume         = omap_wdt_resume,
diff --git a/drivers/watchdog/orion5x_wdt.c b/drivers/watchdog/orion5x_wdt.c
index e81441f103dd..7529616739d2 100644
--- a/drivers/watchdog/orion5x_wdt.c
+++ b/drivers/watchdog/orion5x_wdt.c
@@ -42,7 +42,17 @@ static unsigned int wdt_tclk;
 static unsigned long wdt_status;
 static spinlock_t wdt_lock;
 
-static void wdt_enable(void)
+static void orion5x_wdt_ping(void)
+{
+        spin_lock(&wdt_lock);
+
+        /* Reload watchdog duration */
+        writel(wdt_tclk * heartbeat, WDT_VAL);
+
+        spin_unlock(&wdt_lock);
+}
+
+static void orion5x_wdt_enable(void)
 {
         u32 reg;
 
@@ -69,7 +79,7 @@ static void wdt_enable(void)
         spin_unlock(&wdt_lock);
 }
 
-static void wdt_disable(void)
+static void orion5x_wdt_disable(void)
 {
         u32 reg;
 
@@ -101,7 +111,7 @@ static int orion5x_wdt_open(struct inode *inode, struct file *file)
         if (test_and_set_bit(WDT_IN_USE, &wdt_status))
                 return -EBUSY;
         clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
-        wdt_enable();
+        orion5x_wdt_enable();
         return nonseekable_open(inode, file);
 }
 
@@ -122,18 +132,28 @@ static ssize_t orion5x_wdt_write(struct file *file, const char *data,
                                         set_bit(WDT_OK_TO_CLOSE, &wdt_status);
                         }
                 }
-                wdt_enable();
+                orion5x_wdt_ping();
         }
         return len;
 }
 
-static struct watchdog_info ident = {
+static int orion5x_wdt_settimeout(int new_time)
+{
+        if ((new_time <= 0) || (new_time > wdt_max_duration))
+                return -EINVAL;
+
+        /* Set new watchdog time to be used when
+         * orion5x_wdt_enable() or orion5x_wdt_ping() is called. */
+        heartbeat = new_time;
+        return 0;
+}
+
+static const struct watchdog_info ident = {
         .options        = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
                           WDIOF_KEEPALIVEPING,
         .identity       = "Orion5x Watchdog",
 };
 
-
 static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
                                 unsigned long arg)
 {
@@ -152,7 +172,7 @@ static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
                 break;
 
         case WDIOC_KEEPALIVE:
-                wdt_enable();
+                orion5x_wdt_ping();
                 ret = 0;
                 break;
 
@@ -161,12 +181,11 @@ static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
                 if (ret)
                         break;
 
-                if (time <= 0 || time > wdt_max_duration) {
+                if (orion5x_wdt_settimeout(time)) {
                         ret = -EINVAL;
                         break;
                 }
-                heartbeat = time;
-                wdt_enable();
+                orion5x_wdt_ping();
                 /* Fall through */
 
         case WDIOC_GETTIMEOUT:
@@ -187,7 +206,7 @@ static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
 static int orion5x_wdt_release(struct inode *inode, struct file *file)
 {
         if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
-                wdt_disable();
+                orion5x_wdt_disable();
         else
                 printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
                                         "timer will not stop\n");
@@ -230,7 +249,7 @@ static int __devinit orion5x_wdt_probe(struct platform_device *pdev)
         orion5x_wdt_miscdev.parent = &pdev->dev;
 
         wdt_max_duration = WDT_MAX_CYCLE_COUNT / wdt_tclk;
-        if (heartbeat <= 0 || heartbeat > wdt_max_duration)
+        if (orion5x_wdt_settimeout(heartbeat))
                 heartbeat = wdt_max_duration;
 
         ret = misc_register(&orion5x_wdt_miscdev);
@@ -247,7 +266,7 @@ static int __devexit orion5x_wdt_remove(struct platform_device *pdev)
         int ret;
 
         if (test_bit(WDT_IN_USE, &wdt_status)) {
-                wdt_disable();
+                orion5x_wdt_disable();
                 clear_bit(WDT_IN_USE, &wdt_status);
         }
 
@@ -258,9 +277,16 @@ static int __devexit orion5x_wdt_remove(struct platform_device *pdev)
         return ret;
 }
 
+static void orion5x_wdt_shutdown(struct platform_device *pdev)
+{
+        if (test_bit(WDT_IN_USE, &wdt_status))
+                orion5x_wdt_disable();
+}
+
 static struct platform_driver orion5x_wdt_driver = {
         .probe          = orion5x_wdt_probe,
         .remove         = __devexit_p(orion5x_wdt_remove),
+        .shutdown       = orion5x_wdt_shutdown,
         .driver         = {
                 .owner  = THIS_MODULE,
                 .name   = "orion5x_wdt",
@@ -285,10 +311,11 @@ MODULE_AUTHOR("Sylver Bruneau <sylver.bruneau@googlemail.com>");
 MODULE_DESCRIPTION("Orion5x Processor Watchdog");
 
 module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds");
+MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds");
 
 module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+                                __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c
index 5f54c01c1568..bdfd584ad853 100644
--- a/drivers/xen/cpu_hotplug.c
+++ b/drivers/xen/cpu_hotplug.c
@@ -21,29 +21,41 @@ static void disable_hotplug_cpu(int cpu)
         set_cpu_present(cpu, false);
 }
 
-static void vcpu_hotplug(unsigned int cpu)
+static int vcpu_online(unsigned int cpu)
 {
         int err;
         char dir[32], state[32];
 
-        if (!cpu_possible(cpu))
-                return;
-
         sprintf(dir, "cpu/%u", cpu);
         err = xenbus_scanf(XBT_NIL, dir, "availability", "%s", state);
         if (err != 1) {
                 printk(KERN_ERR "XENBUS: Unable to read cpu state\n");
-                return;
+                return err;
         }
 
-        if (strcmp(state, "online") == 0) {
+        if (strcmp(state, "online") == 0)
+                return 1;
+        else if (strcmp(state, "offline") == 0)
+                return 0;
+
+        printk(KERN_ERR "XENBUS: unknown state(%s) on CPU%d\n", state, cpu);
+        return -EINVAL;
+}
+static void vcpu_hotplug(unsigned int cpu)
+{
+        if (!cpu_possible(cpu))
+                return;
+
+        switch (vcpu_online(cpu)) {
+        case 1:
                 enable_hotplug_cpu(cpu);
-        } else if (strcmp(state, "offline") == 0) {
+                break;
+        case 0:
                 (void)cpu_down(cpu);
                 disable_hotplug_cpu(cpu);
-        } else {
-                printk(KERN_ERR "XENBUS: unknown state(%s) on CPU%d\n",
-                       state, cpu);
+                break;
+        default:
+                break;
         }
 }
 
@@ -64,12 +76,20 @@ static void handle_vcpu_hotplug_event(struct xenbus_watch *watch,
 static int setup_cpu_watcher(struct notifier_block *notifier,
                               unsigned long event, void *data)
 {
+        int cpu;
         static struct xenbus_watch cpu_watch = {
                 .node = "cpu",
                 .callback = handle_vcpu_hotplug_event};
 
         (void)register_xenbus_watch(&cpu_watch);
 
+        for_each_possible_cpu(cpu) {
+                if (vcpu_online(cpu) == 0) {
+                        (void)cpu_down(cpu);
+                        cpu_clear(cpu, cpu_present_map);
+                }
+        }
+
         return NOTIFY_DONE;
 }
 
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 0d61db1e7b49..4b5b84837ee1 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -62,14 +62,15 @@ static int xen_suspend(void *data)
         gnttab_resume();
         xen_mm_unpin_all();
 
-        sysdev_resume();
-
         if (!*cancelled) {
                 xen_irq_resume();
                 xen_console_resume();
                 xen_timer_resume();
         }
 
+        sysdev_resume();
+        device_power_up(PMSG_RESUME);
+
         return 0;
 }
 
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index b43b95563663..acf678831103 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -590,9 +590,8 @@ static int ext2_get_blocks(struct inode *inode,
 
         if (depth == 0)
                 return (err);
-reread:
-        partial = ext2_get_branch(inode, depth, offsets, chain, &err);
 
+        partial = ext2_get_branch(inode, depth, offsets, chain, &err);
         /* Simplest case - block found, no allocation needed */
         if (!partial) {
                 first_block = le32_to_cpu(chain[depth - 1].key);
@@ -602,15 +601,16 @@ reread:
                 while (count < maxblocks && count <= blocks_to_boundary) {
                         ext2_fsblk_t blk;
 
-                        if (!verify_chain(chain, partial)) {
+                        if (!verify_chain(chain, chain + depth - 1)) {
                                 /*
                                  * Indirect block might be removed by
                                  * truncate while we were reading it.
                                  * Handling of that case: forget what we've
                                  * got now, go to reread.
                                  */
+                                err = -EAGAIN;
                                 count = 0;
-                                goto changed;
+                                break;
                         }
                         blk = le32_to_cpu(*(chain[depth-1].p + count));
                         if (blk == first_block + count)
@@ -618,7 +618,8 @@ reread:
                         else
                                 break;
                 }
-                goto got_it;
+                if (err != -EAGAIN)
+                        goto got_it;
         }
 
         /* Next simple case - plain lookup or failed read of indirect block */
@@ -626,6 +627,33 @@ reread:
                 goto cleanup;
 
         mutex_lock(&ei->truncate_mutex);
+        /*
+         * If the indirect block is missing while we are reading
+         * the chain(ext3_get_branch() returns -EAGAIN err), or
+         * if the chain has been changed after we grab the semaphore,
+         * (either because another process truncated this branch, or
+         * another get_block allocated this branch) re-grab the chain to see if
+         * the request block has been allocated or not.
+         *
+         * Since we already block the truncate/other get_block
+         * at this point, we will have the current copy of the chain when we
+         * splice the branch into the tree.
+         */
+        if (err == -EAGAIN || !verify_chain(chain, partial)) {
+                while (partial > chain) {
+                        brelse(partial->bh);
+                        partial--;
+                }
+                partial = ext2_get_branch(inode, depth, offsets, chain, &err);
+                if (!partial) {
+                        count++;
+                        mutex_unlock(&ei->truncate_mutex);
+                        if (err)
+                                goto cleanup;
+                        clear_buffer_new(bh_result);
+                        goto got_it;
+                }
+        }
 
         /*
          * Okay, we need to do block allocation.  Lazily initialize the block
@@ -683,12 +711,6 @@ cleanup:
                 partial--;
         }
         return err;
-changed:
-        while (partial > chain) {
-                brelse(partial->bh);
-                partial--;
-        }
-        goto reread;
 }
 
 int ext2_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create)
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 9435dda8f1e0..a1cbff2b4d99 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -70,6 +70,10 @@ static int hfs_releasepage(struct page *page, gfp_t mask)
                 BUG();
                 return 0;
         }
+
+        if (!tree)
+                return 0;
+
         if (tree->node_size >= PAGE_CACHE_SIZE) {
                 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
                 spin_lock(&tree->hash_lock);
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 36ca2e1a4fa3..7b6165f25fbe 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -349,6 +349,7 @@ void hfs_mdb_put(struct super_block *sb)
         if (HFS_SB(sb)->nls_disk)
                 unload_nls(HFS_SB(sb)->nls_disk);
 
+        free_pages((unsigned long)HFS_SB(sb)->bitmap, PAGE_SIZE < 8192 ? 1 : 0);
         kfree(HFS_SB(sb));
         sb->s_fs_info = NULL;
 }
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index c7bd649bbbdc..3e9afc2a91d2 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -55,6 +55,25 @@
  *                      need do nothing.
  * RevokeValid set, Revoked set:
  *                      buffer has been revoked.
+ *
+ * Locking rules:
+ * We keep two hash tables of revoke records. One hashtable belongs to the
+ * running transaction (is pointed to by journal->j_revoke), the other one
+ * belongs to the committing transaction. Accesses to the second hash table
+ * happen only from the kjournald and no other thread touches this table.  Also
+ * journal_switch_revoke_table() which switches which hashtable belongs to the
+ * running and which to the committing transaction is called only from
+ * kjournald. Therefore we need no locks when accessing the hashtable belonging
+ * to the committing transaction.
+ *
+ * All users operating on the hash table belonging to the running transaction
+ * have a handle to the transaction. Therefore they are safe from kjournald
+ * switching hash tables under them. For operations on the lists of entries in
+ * the hash table j_revoke_lock is used.
+ *
+ * Finally, also replay code uses the hash tables but at this moment noone else
+ * can touch them (filesystem isn't mounted yet) and hence no locking is
+ * needed.
  */
 
 #ifndef __KERNEL__
@@ -402,8 +421,6 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
  * the second time we would still have a pending revoke to cancel.  So,
  * do not trust the Revoked bit on buffers unless RevokeValid is also
  * set.
- *
- * The caller must have the journal locked.
  */
 int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
 {
@@ -481,10 +498,7 @@ void journal_switch_revoke_table(journal_t *journal)
 /*
  * Write revoke records to the journal for all entries in the current
  * revoke hash, deleting the entries as we go.
- *
- * Called with the journal lock held.
  */
-
 void journal_write_revoke_records(journal_t *journal,
                                   transaction_t *transaction)
 {
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c13f67300fe7..7ec89fc05b2b 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -153,23 +153,6 @@ xfs_find_bdev_for_inode(
 }
 
 /*
- * Schedule IO completion handling on a xfsdatad if this was
- * the final hold on this ioend. If we are asked to wait,
- * flush the workqueue.
- */
-STATIC void
-xfs_finish_ioend(
-        xfs_ioend_t     *ioend,
-        int             wait)
-{
-        if (atomic_dec_and_test(&ioend->io_remaining)) {
-                queue_work(xfsdatad_workqueue, &ioend->io_work);
-                if (wait)
-                        flush_workqueue(xfsdatad_workqueue);
-        }
-}
-
-/*
  * We're now finished for good with this ioend structure.
  * Update the page state via the associated buffer_heads,
  * release holds on the inode and bio, and finally free
@@ -310,6 +293,27 @@ xfs_end_bio_read(
 }
 
 /*
+ * Schedule IO completion handling on a xfsdatad if this was
+ * the final hold on this ioend. If we are asked to wait,
+ * flush the workqueue.
+ */
+STATIC void
+xfs_finish_ioend(
+        xfs_ioend_t     *ioend,
+        int             wait)
+{
+        if (atomic_dec_and_test(&ioend->io_remaining)) {
+                struct workqueue_struct *wq = xfsdatad_workqueue;
+                if (ioend->io_work.func == xfs_end_bio_unwritten)
+                        wq = xfsconvertd_workqueue;
+
+                queue_work(wq, &ioend->io_work);
+                if (wait)
+                        flush_workqueue(wq);
+        }
+}
+
+/*
  * Allocate and initialise an IO completion structure.
  * We need to track unwritten extent write completion here initially.
  * We'll need to extend this for updating the ondisk inode size later
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 1dd528849755..221b3e66ceef 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -19,6 +19,7 @@
 #define __XFS_AOPS_H__
 
 extern struct workqueue_struct *xfsdatad_workqueue;
+extern struct workqueue_struct *xfsconvertd_workqueue;
 extern mempool_t *xfs_ioend_pool;
 
 /*
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index aa1016bb9134..e28800a9f2b5 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -51,6 +51,7 @@ static struct shrinker xfs_buf_shake = {
 
 static struct workqueue_struct *xfslogd_workqueue;
 struct workqueue_struct *xfsdatad_workqueue;
+struct workqueue_struct *xfsconvertd_workqueue;
 
 #ifdef XFS_BUF_TRACE
 void
@@ -1775,6 +1776,7 @@ xfs_flush_buftarg(
         xfs_buf_t       *bp, *n;
         int             pincount = 0;
 
+        xfs_buf_runall_queues(xfsconvertd_workqueue);
         xfs_buf_runall_queues(xfsdatad_workqueue);
         xfs_buf_runall_queues(xfslogd_workqueue);
 
@@ -1831,9 +1833,15 @@ xfs_buf_init(void)
         if (!xfsdatad_workqueue)
                 goto out_destroy_xfslogd_workqueue;
 
+        xfsconvertd_workqueue = create_workqueue("xfsconvertd");
+        if (!xfsconvertd_workqueue)
+                goto out_destroy_xfsdatad_workqueue;
+
         register_shrinker(&xfs_buf_shake);
         return 0;
 
+ out_destroy_xfsdatad_workqueue:
+        destroy_workqueue(xfsdatad_workqueue);
  out_destroy_xfslogd_workqueue:
         destroy_workqueue(xfslogd_workqueue);
  out_free_buf_zone:
@@ -1849,6 +1857,7 @@ void
 xfs_buf_terminate(void)
 {
         unregister_shrinker(&xfs_buf_shake);
+        destroy_workqueue(xfsconvertd_workqueue);
         destroy_workqueue(xfsdatad_workqueue);
         destroy_workqueue(xfslogd_workqueue);
         kmem_zone_destroy(xfs_buf_zone);
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 5aeb77776961..08be36d7326c 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -74,14 +74,14 @@ xfs_flush_pages(
 
         if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
                 xfs_iflags_clear(ip, XFS_ITRUNCATED);
-                ret = filemap_fdatawrite(mapping);
-                if (flags & XFS_B_ASYNC)
-                        return -ret;
-                ret2 = filemap_fdatawait(mapping);
-                if (!ret)
-                        ret = ret2;
+                ret = -filemap_fdatawrite(mapping);
         }
-        return -ret;
+        if (flags & XFS_B_ASYNC)
+                return ret;
+        ret2 = xfs_wait_on_pages(ip, first, last);
+        if (!ret)
+                ret = ret2;
+        return ret;
 }
 
 int
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 7e90daa0d1d1..9142192ccbe6 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -751,10 +751,26 @@ start:
                         goto relock;
                 }
         } else {
+                int enospc = 0;
+                ssize_t ret2 = 0;
+
+write_retry:
                 xfs_rw_enter_trace(XFS_WRITE_ENTER, xip, (void *)iovp, segs,
                                 *offset, ioflags);
-                ret = generic_file_buffered_write(iocb, iovp, segs,
+                ret2 = generic_file_buffered_write(iocb, iovp, segs,
                                 pos, offset, count, ret);
+                /*
+                 * if we just got an ENOSPC, flush the inode now we
+                 * aren't holding any page locks and retry *once*
+                 */
+                if (ret2 == -ENOSPC && !enospc) {
+                        error = xfs_flush_pages(xip, 0, -1, 0, FI_NONE);
+                        if (error)
+                                goto out_unlock_internal;
+                        enospc = 1;
+                        goto write_retry;
+                }
+                ret = ret2;
         }
 
         current->backing_dev_info = NULL;
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index a608e72fa405..f7ba76633c29 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -62,12 +62,6 @@ xfs_sync_inodes_ag(
         uint32_t        first_index = 0;
         int             error = 0;
         int             last_error = 0;
-        int             fflag = XFS_B_ASYNC;
-
-        if (flags & SYNC_DELWRI)
-                fflag = XFS_B_DELWRI;
-        if (flags & SYNC_WAIT)
-                fflag = 0;              /* synchronous overrides all */
 
         do {
                 struct inode    *inode;
@@ -128,11 +122,23 @@ xfs_sync_inodes_ag(
                  * If we have to flush data or wait for I/O completion
                  * we need to hold the iolock.
                  */
-                if ((flags & SYNC_DELWRI) && VN_DIRTY(inode)) {
-                        xfs_ilock(ip, XFS_IOLOCK_SHARED);
-                        lock_flags |= XFS_IOLOCK_SHARED;
-                        error = xfs_flush_pages(ip, 0, -1, fflag, FI_NONE);
-                        if (flags & SYNC_IOWAIT)
+                if (flags & SYNC_DELWRI) {
+                        if (VN_DIRTY(inode)) {
+                                if (flags & SYNC_TRYLOCK) {
+                                        if (xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED))
+                                                lock_flags |= XFS_IOLOCK_SHARED;
+                                } else {
+                                        xfs_ilock(ip, XFS_IOLOCK_SHARED);
+                                        lock_flags |= XFS_IOLOCK_SHARED;
+                                }
+                                if (lock_flags & XFS_IOLOCK_SHARED) {
+                                        error = xfs_flush_pages(ip, 0, -1,
+                                                        (flags & SYNC_WAIT) ? 0
+                                                                : XFS_B_ASYNC,
+                                                        FI_NONE);
+                                }
+                        }
+                        if (VN_CACHED(inode) && (flags & SYNC_IOWAIT))
                                 xfs_ioend_wait(ip);
                 }
                 xfs_ilock(ip, XFS_ILOCK_SHARED);
@@ -398,15 +404,17 @@ STATIC void
 xfs_syncd_queue_work(
         struct xfs_mount *mp,
         void            *data,
-        void            (*syncer)(struct xfs_mount *, void *))
+        void            (*syncer)(struct xfs_mount *, void *),
+        struct completion *completion)
 {
-        struct bhv_vfs_sync_work *work;
+        struct xfs_sync_work *work;
 
-        work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP);
+        work = kmem_alloc(sizeof(struct xfs_sync_work), KM_SLEEP);
         INIT_LIST_HEAD(&work->w_list);
         work->w_syncer = syncer;
         work->w_data = data;
         work->w_mount = mp;
+        work->w_completion = completion;
         spin_lock(&mp->m_sync_lock);
         list_add_tail(&work->w_list, &mp->m_sync_list);
         spin_unlock(&mp->m_sync_lock);
@@ -420,49 +428,26 @@ xfs_syncd_queue_work(
  * heads, looking about for more room...
  */
 STATIC void
-xfs_flush_inode_work(
-        struct xfs_mount *mp,
-        void            *arg)
-{
-        struct inode    *inode = arg;
-        filemap_flush(inode->i_mapping);
-        iput(inode);
-}
-
-void
-xfs_flush_inode(
-        xfs_inode_t     *ip)
-{
-        struct inode    *inode = VFS_I(ip);
-
-        igrab(inode);
-        xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
-        delay(msecs_to_jiffies(500));
-}
-
-/*
- * This is the "bigger hammer" version of xfs_flush_inode_work...
- * (IOW, "If at first you don't succeed, use a Bigger Hammer").
- */
-STATIC void
-xfs_flush_device_work(
+xfs_flush_inodes_work(
         struct xfs_mount *mp,
         void            *arg)
 {
         struct inode    *inode = arg;
-        sync_blockdev(mp->m_super->s_bdev);
+        xfs_sync_inodes(mp, SYNC_DELWRI | SYNC_TRYLOCK);
+        xfs_sync_inodes(mp, SYNC_DELWRI | SYNC_TRYLOCK | SYNC_IOWAIT);
         iput(inode);
 }
 
 void
-xfs_flush_device(
+xfs_flush_inodes(
         xfs_inode_t     *ip)
 {
         struct inode    *inode = VFS_I(ip);
+        DECLARE_COMPLETION_ONSTACK(completion);
 
         igrab(inode);
-        xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work);
-        delay(msecs_to_jiffies(500));
+        xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inodes_work, &completion);
+        wait_for_completion(&completion);
         xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
 }
 
@@ -497,7 +482,7 @@ xfssyncd(
 {
         struct xfs_mount        *mp = arg;
         long                    timeleft;
-        bhv_vfs_sync_work_t     *work, *n;
+        xfs_sync_work_t         *work, *n;
         LIST_HEAD               (tmp);
 
         set_freezable();
@@ -532,6 +517,8 @@ xfssyncd(
                         list_del(&work->w_list);
                         if (work == &mp->m_sync_work)
                                 continue;
+                        if (work->w_completion)
+                                complete(work->w_completion);
                         kmem_free(work);
                 }
         }
@@ -545,6 +532,7 @@ xfs_syncd_init(
 {
         mp->m_sync_work.w_syncer = xfs_sync_worker;
         mp->m_sync_work.w_mount = mp;
+        mp->m_sync_work.w_completion = NULL;
         mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd");
         if (IS_ERR(mp->m_sync_task))
                 return -PTR_ERR(mp->m_sync_task);
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index 04f058c848ae..308d5bf6dfbd 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -21,18 +21,20 @@
 struct xfs_mount;
 struct xfs_perag;
 
-typedef struct bhv_vfs_sync_work {
+typedef struct xfs_sync_work {
         struct list_head        w_list;
         struct xfs_mount        *w_mount;
         void                    *w_data;        /* syncer routine argument */
         void                    (*w_syncer)(struct xfs_mount *, void *);
-} bhv_vfs_sync_work_t;
+        struct completion       *w_completion;
+} xfs_sync_work_t;
 
 #define SYNC_ATTR               0x0001  /* sync attributes */
 #define SYNC_DELWRI             0x0002  /* look at delayed writes */
 #define SYNC_WAIT               0x0004  /* wait for i/o to complete */
 #define SYNC_BDFLUSH            0x0008  /* BDFLUSH is calling -- don't block */
 #define SYNC_IOWAIT             0x0010  /* wait for all I/O to complete */
+#define SYNC_TRYLOCK            0x0020  /* only try to lock inodes */
 
 int xfs_syncd_init(struct xfs_mount *mp);
 void xfs_syncd_stop(struct xfs_mount *mp);
@@ -43,8 +45,7 @@ int xfs_sync_fsdata(struct xfs_mount *mp, int flags);
 int xfs_quiesce_data(struct xfs_mount *mp);
 void xfs_quiesce_attr(struct xfs_mount *mp);
 
-void xfs_flush_inode(struct xfs_inode *ip);
-void xfs_flush_device(struct xfs_inode *ip);
+void xfs_flush_inodes(struct xfs_inode *ip);
 
 int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode);
 int xfs_reclaim_inodes(struct xfs_mount *mp, int noblock, int mode);
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 478e587087fe..89b81eedce6a 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -69,15 +69,6 @@ xfs_inode_alloc(
         ASSERT(!spin_is_locked(&ip->i_flags_lock));
         ASSERT(completion_done(&ip->i_flush));
 
-        /*
-         * initialise the VFS inode here to get failures
-         * out of the way early.
-         */
-        if (!inode_init_always(mp->m_super, VFS_I(ip))) {
-                kmem_zone_free(xfs_inode_zone, ip);
-                return NULL;
-        }
-
         /* initialise the xfs inode */
         ip->i_ino = ino;
         ip->i_mount = mp;
@@ -113,6 +104,20 @@ xfs_inode_alloc(
 #ifdef XFS_DIR2_TRACE
         ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS);
 #endif
+        /*
+        * Now initialise the VFS inode. We do this after the xfs_inode
+        * initialisation as internal failures will result in ->destroy_inode
+        * being called and that will pass down through the reclaim path and
+        * free the XFS inode. This path requires the XFS inode to already be
+        * initialised. Hence if this call fails, the xfs_inode has already
+        * been freed and we should not reference it at all in the error
+        * handling.
+        */
+        if (!inode_init_always(mp->m_super, VFS_I(ip)))
+                return NULL;
+
+        /* prevent anyone from using this yet */
+        VFS_I(ip)->i_state = I_NEW|I_LOCK;
 
         return ip;
 }
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 08ce72316bfe..5aaa2d7ec155 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -338,38 +338,6 @@ xfs_iomap_eof_align_last_fsb(
 }
 
 STATIC int
-xfs_flush_space(
-        xfs_inode_t     *ip,
-        int             *fsynced,
-        int             *ioflags)
-{
-        switch (*fsynced) {
-        case 0:
-                if (ip->i_delayed_blks) {
-                        xfs_iunlock(ip, XFS_ILOCK_EXCL);
-                        xfs_flush_inode(ip);
-                        xfs_ilock(ip, XFS_ILOCK_EXCL);
-                        *fsynced = 1;
-                } else {
-                        *ioflags |= BMAPI_SYNC;
-                        *fsynced = 2;
-                }
-                return 0;
-        case 1:
-                *fsynced = 2;
-                *ioflags |= BMAPI_SYNC;
-                return 0;
-        case 2:
-                xfs_iunlock(ip, XFS_ILOCK_EXCL);
-                xfs_flush_device(ip);
-                xfs_ilock(ip, XFS_ILOCK_EXCL);
-                *fsynced = 3;
-                return 0;
-        }
-        return 1;
-}
-
-STATIC int
 xfs_cmn_err_fsblock_zero(
         xfs_inode_t     *ip,
         xfs_bmbt_irec_t *imap)
@@ -538,15 +506,9 @@ error_out:
 }
 
 /*
- * If the caller is doing a write at the end of the file,
- * then extend the allocation out to the file system's write
- * iosize.  We clean up any extra space left over when the
- * file is closed in xfs_inactive().
- *
- * For sync writes, we are flushing delayed allocate space to
- * try to make additional space available for allocation near
- * the filesystem full boundary - preallocation hurts in that
- * situation, of course.
+ * If the caller is doing a write at the end of the file, then extend the
+ * allocation out to the file system's write iosize.  We clean up any extra
+ * space left over when the file is closed in xfs_inactive().
  */
 STATIC int
 xfs_iomap_eof_want_preallocate(
@@ -565,7 +527,7 @@ xfs_iomap_eof_want_preallocate(
         int             n, error, imaps;
 
         *prealloc = 0;
-        if ((ioflag & BMAPI_SYNC) || (offset + count) <= ip->i_size)
+        if ((offset + count) <= ip->i_size)
                 return 0;
 
         /*
@@ -611,7 +573,7 @@ xfs_iomap_write_delay(
         xfs_extlen_t    extsz;
         int             nimaps;
         xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS];
-        int             prealloc, fsynced = 0;
+        int             prealloc, flushed = 0;
         int             error;
 
         ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
@@ -627,12 +589,12 @@ xfs_iomap_write_delay(
         extsz = xfs_get_extsz_hint(ip);
         offset_fsb = XFS_B_TO_FSBT(mp, offset);
 
-retry:
         error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,
                                 ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
         if (error)
                 return error;
 
+retry:
         if (prealloc) {
                 aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));
                 ioalign = XFS_B_TO_FSBT(mp, aligned_offset);
@@ -659,15 +621,22 @@ retry:
 
         /*
          * If bmapi returned us nothing, and if we didn't get back EDQUOT,
-         * then we must have run out of space - flush delalloc, and retry..
+         * then we must have run out of space - flush all other inodes with
+         * delalloc blocks and retry without EOF preallocation.
          */
         if (nimaps == 0) {
                 xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
                                         ip, offset, count);
-                if (xfs_flush_space(ip, &fsynced, &ioflag))
+                if (flushed)
                         return XFS_ERROR(ENOSPC);
 
+                xfs_iunlock(ip, XFS_ILOCK_EXCL);
+                xfs_flush_inodes(ip);
+                xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+                flushed = 1;
                 error = 0;
+                prealloc = 0;
                 goto retry;
         }
 
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index a1cc1322fc0f..fdcf7b82747f 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -40,8 +40,7 @@ typedef enum {
         BMAPI_IGNSTATE = (1 << 4),      /* ignore unwritten state on read */
         BMAPI_DIRECT = (1 << 5),        /* direct instead of buffered write */
         BMAPI_MMAP = (1 << 6),          /* allocate for mmap write */
-        BMAPI_SYNC = (1 << 7),          /* sync write to flush delalloc space */
-        BMAPI_TRYLOCK = (1 << 8),       /* non-blocking request */
+        BMAPI_TRYLOCK = (1 << 7),       /* non-blocking request */
 } bmapi_flags_t;
 
 
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index f76c6d7cea21..3750f04ede0b 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -562,9 +562,8 @@ xfs_log_mount(
         }
 
         mp->m_log = xlog_alloc_log(mp, log_target, blk_offset, num_bblks);
-        if (!mp->m_log) {
-                cmn_err(CE_WARN, "XFS: Log allocation failed: No memory!");
-                error = ENOMEM;
+        if (IS_ERR(mp->m_log)) {
+                error = -PTR_ERR(mp->m_log);
                 goto out;
         }
 
@@ -1180,10 +1179,13 @@ xlog_alloc_log(xfs_mount_t	*mp,
         xfs_buf_t               *bp;
         int                     i;
         int                     iclogsize;
+        int                     error = ENOMEM;
 
         log = kmem_zalloc(sizeof(xlog_t), KM_MAYFAIL);
-        if (!log)
-                return NULL;
+        if (!log) {
+                xlog_warn("XFS: Log allocation failed: No memory!");
+                goto out;
+        }
 
         log->l_mp          = mp;
         log->l_targ        = log_target;
@@ -1201,19 +1203,35 @@ xlog_alloc_log(xfs_mount_t	*mp,
         log->l_grant_reserve_cycle = 1;
         log->l_grant_write_cycle = 1;
 
+        error = EFSCORRUPTED;
         if (xfs_sb_version_hassector(&mp->m_sb)) {
                 log->l_sectbb_log = mp->m_sb.sb_logsectlog - BBSHIFT;
-                ASSERT(log->l_sectbb_log <= mp->m_sectbb_log);
+                if (log->l_sectbb_log < 0 ||
+                    log->l_sectbb_log > mp->m_sectbb_log) {
+                        xlog_warn("XFS: Log sector size (0x%x) out of range.",
+                                                log->l_sectbb_log);
+                        goto out_free_log;
+                }
+
                 /* for larger sector sizes, must have v2 or external log */
-                ASSERT(log->l_sectbb_log == 0 ||
-                        log->l_logBBstart == 0 ||
-                        xfs_sb_version_haslogv2(&mp->m_sb));
-                ASSERT(mp->m_sb.sb_logsectlog >= BBSHIFT);
+                if (log->l_sectbb_log != 0 &&
+                    (log->l_logBBstart != 0 &&
+                     !xfs_sb_version_haslogv2(&mp->m_sb))) {
+                        xlog_warn("XFS: log sector size (0x%x) invalid "
+                                  "for configuration.", log->l_sectbb_log);
+                        goto out_free_log;
+                }
+                if (mp->m_sb.sb_logsectlog < BBSHIFT) {
+                        xlog_warn("XFS: Log sector log (0x%x) too small.",
+                                                mp->m_sb.sb_logsectlog);
+                        goto out_free_log;
+                }
         }
         log->l_sectbb_mask = (1 << log->l_sectbb_log) - 1;
 
         xlog_get_iclog_buffer_size(mp, log);
 
+        error = ENOMEM;
         bp = xfs_buf_get_empty(log->l_iclog_size, mp->m_logdev_targp);
         if (!bp)
                 goto out_free_log;
@@ -1313,7 +1331,8 @@ out_free_iclog:
         xfs_buf_free(log->l_xbuf);
 out_free_log:
         kmem_free(log);
-        return NULL;
+out:
+        return ERR_PTR(-error);
 }       /* xlog_alloc_log */
 
 
@@ -2541,18 +2560,19 @@ redo:
                         xlog_ins_ticketq(&log->l_reserve_headq, tic);
                 xlog_trace_loggrant(log, tic,
                                     "xlog_grant_log_space: sleep 2");
+                spin_unlock(&log->l_grant_lock);
+                xlog_grant_push_ail(log->l_mp, need_bytes);
+                spin_lock(&log->l_grant_lock);
+
                 XFS_STATS_INC(xs_sleep_logspace);
                 sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
 
-                if (XLOG_FORCED_SHUTDOWN(log)) {
-                        spin_lock(&log->l_grant_lock);
+                spin_lock(&log->l_grant_lock);
+                if (XLOG_FORCED_SHUTDOWN(log))
                         goto error_return;
-                }
 
                 xlog_trace_loggrant(log, tic,
                                     "xlog_grant_log_space: wake 2");
-                xlog_grant_push_ail(log->l_mp, need_bytes);
-                spin_lock(&log->l_grant_lock);
                 goto redo;
         } else if (tic->t_flags & XLOG_TIC_IN_Q)
                 xlog_del_ticketq(&log->l_reserve_headq, tic);
@@ -2631,7 +2651,7 @@ xlog_regrant_write_log_space(xlog_t	   *log,
          * for more free space, otherwise try to get some space for
          * this transaction.
          */
-
+        need_bytes = tic->t_unit_res;
         if ((ntic = log->l_write_headq)) {
                 free_bytes = xlog_space_left(log, log->l_grant_write_cycle,
                                              log->l_grant_write_bytes);
@@ -2651,26 +2671,25 @@ xlog_regrant_write_log_space(xlog_t	   *log,
 
                         xlog_trace_loggrant(log, tic,
                                     "xlog_regrant_write_log_space: sleep 1");
+                        spin_unlock(&log->l_grant_lock);
+                        xlog_grant_push_ail(log->l_mp, need_bytes);
+                        spin_lock(&log->l_grant_lock);
+
                         XFS_STATS_INC(xs_sleep_logspace);
                         sv_wait(&tic->t_wait, PINOD|PLTWAIT,
                                 &log->l_grant_lock, s);
 
                         /* If we're shutting down, this tic is already
                          * off the queue */
-                        if (XLOG_FORCED_SHUTDOWN(log)) {
-                                spin_lock(&log->l_grant_lock);
+                        spin_lock(&log->l_grant_lock);
+                        if (XLOG_FORCED_SHUTDOWN(log))
                                 goto error_return;
-                        }
 
                         xlog_trace_loggrant(log, tic,
                                     "xlog_regrant_write_log_space: wake 1");
-                        xlog_grant_push_ail(log->l_mp, tic->t_unit_res);
-                        spin_lock(&log->l_grant_lock);
                 }
         }
 
-        need_bytes = tic->t_unit_res;
-
 redo:
         if (XLOG_FORCED_SHUTDOWN(log))
                 goto error_return;
@@ -2680,19 +2699,20 @@ redo:
         if (free_bytes < need_bytes) {
                 if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
                         xlog_ins_ticketq(&log->l_write_headq, tic);
+                spin_unlock(&log->l_grant_lock);
+                xlog_grant_push_ail(log->l_mp, need_bytes);
+                spin_lock(&log->l_grant_lock);
+
                 XFS_STATS_INC(xs_sleep_logspace);
                 sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
 
                 /* If we're shutting down, this tic is already off the queue */
-                if (XLOG_FORCED_SHUTDOWN(log)) {
-                        spin_lock(&log->l_grant_lock);
+                spin_lock(&log->l_grant_lock);
+                if (XLOG_FORCED_SHUTDOWN(log))
                         goto error_return;
-                }
 
                 xlog_trace_loggrant(log, tic,
                                     "xlog_regrant_write_log_space: wake 2");
-                xlog_grant_push_ail(log->l_mp, need_bytes);
-                spin_lock(&log->l_grant_lock);
                 goto redo;
         } else if (tic->t_flags & XLOG_TIC_IN_Q)
                 xlog_del_ticketq(&log->l_write_headq, tic);
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 7af44adffc8f..d6a64392f983 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -313,7 +313,7 @@ typedef struct xfs_mount {
 #endif
         struct xfs_mru_cache    *m_filestream;  /* per-mount filestream data */
         struct task_struct      *m_sync_task;   /* generalised sync thread */
-        bhv_vfs_sync_work_t     m_sync_work;    /* work item for VFS_SYNC */
+        xfs_sync_work_t         m_sync_work;    /* work item for VFS_SYNC */
         struct list_head        m_sync_list;    /* sync thread work item list */
         spinlock_t              m_sync_lock;    /* work item list lock */
         int                     m_sync_seq;     /* sync thread generation no. */
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 7394c7af5de5..19cf90a9c762 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1457,6 +1457,13 @@ xfs_create(
         error = xfs_trans_reserve(tp, resblks, log_res, 0,
                         XFS_TRANS_PERM_LOG_RES, log_count);
         if (error == ENOSPC) {
+                /* flush outstanding delalloc blocks and retry */
+                xfs_flush_inodes(dp);
+                error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0,
+                        XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT);
+        }
+        if (error == ENOSPC) {
+                /* No space at all so try a "no-allocation" reservation */
                 resblks = 0;
                 error = xfs_trans_reserve(tp, 0, log_res, 0,
                                 XFS_TRANS_PERM_LOG_RES, log_count);
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 00f45ff081a6..b0e63c672ebd 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -80,56 +80,4 @@ extern void setup_per_cpu_areas(void);
 #define DECLARE_PER_CPU(type, name) extern PER_CPU_ATTRIBUTES \
                                         __typeof__(type) per_cpu_var(name)
 
-/*
- * Optional methods for optimized non-lvalue per-cpu variable access.
- *
- * @var can be a percpu variable or a field of it and its size should
- * equal char, int or long.  percpu_read() evaluates to a lvalue and
- * all others to void.
- *
- * These operations are guaranteed to be atomic w.r.t. preemption.
- * The generic versions use plain get/put_cpu_var().  Archs are
- * encouraged to implement single-instruction alternatives which don't
- * require preemption protection.
- */
-#ifndef percpu_read
-# define percpu_read(var)                                               \
-  ({                                                                    \
-        typeof(per_cpu_var(var)) __tmp_var__;                           \
-        __tmp_var__ = get_cpu_var(var);                                 \
-        put_cpu_var(var);                                               \
-        __tmp_var__;                                                    \
-  })
-#endif
-
-#define __percpu_generic_to_op(var, val, op)                            \
-do {                                                                    \
-        get_cpu_var(var) op val;                                        \
-        put_cpu_var(var);                                               \
-} while (0)
-
-#ifndef percpu_write
-# define percpu_write(var, val)         __percpu_generic_to_op(var, (val), =)
-#endif
-
-#ifndef percpu_add
-# define percpu_add(var, val)           __percpu_generic_to_op(var, (val), +=)
-#endif
-
-#ifndef percpu_sub
-# define percpu_sub(var, val)           __percpu_generic_to_op(var, (val), -=)
-#endif
-
-#ifndef percpu_and
-# define percpu_and(var, val)           __percpu_generic_to_op(var, (val), &=)
-#endif
-
-#ifndef percpu_or
-# define percpu_or(var, val)            __percpu_generic_to_op(var, (val), |=)
-#endif
-
-#ifndef percpu_xor
-# define percpu_xor(var, val)           __percpu_generic_to_op(var, (val), ^=)
-#endif
-
 #endif /* _ASM_GENERIC_PERCPU_H_ */
diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
index 35752dadd6df..c840719a8c59 100644
--- a/include/asm-generic/siginfo.h
+++ b/include/asm-generic/siginfo.h
@@ -201,7 +201,7 @@ typedef struct siginfo {
 #define TRAP_TRACE      (__SI_FAULT|2)  /* process trace trap */
 #define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
 #define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint/watchpoint */
-#define NSIGTRAP        2
+#define NSIGTRAP        4
 
 /*
  * SIGCHLD si_codes
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 2df74eb09563..9477af01a639 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -472,6 +472,7 @@
         {0x8086, 0x2562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
         {0x8086, 0x3582, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
         {0x8086, 0x2572, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+        {0x8086, 0x358e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
         {0, 0, 0}
 
 #define gamma_PCI_IDS \
@@ -533,4 +534,5 @@
         {0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
         {0x8086, 0xa001, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
         {0x8086, 0xa011, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+        {0x8086, 0x35e8, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
         {0, 0, 0}
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 4864a43b2b45..c3021105edc0 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -377,7 +377,21 @@ struct cpu_vfs_cap_data {
 #define CAP_FOR_EACH_U32(__capi)  \
         for (__capi = 0; __capi < _KERNEL_CAPABILITY_U32S; ++__capi)
 
+/*
+ * CAP_FS_MASK and CAP_NFSD_MASKS:
+ *
+ * The fs mask is all the privileges that fsuid==0 historically meant.
+ * At one time in the past, that included CAP_MKNOD and CAP_LINUX_IMMUTABLE.
+ *
+ * It has never meant setting security.* and trusted.* xattrs.
+ *
+ * We could also define fsmask as follows:
+ *   1. CAP_FS_MASK is the privilege to bypass all fs-related DAC permissions
+ *   2. The security.* and trusted.* xattrs are fs-related MAC permissions
+ */
+
 # define CAP_FS_MASK_B0     (CAP_TO_MASK(CAP_CHOWN)             \
+                            | CAP_TO_MASK(CAP_MKNOD)            \
                             | CAP_TO_MASK(CAP_DAC_OVERRIDE)     \
                             | CAP_TO_MASK(CAP_DAC_READ_SEARCH)  \
                             | CAP_TO_MASK(CAP_FOWNER)           \
@@ -392,11 +406,12 @@ struct cpu_vfs_cap_data {
 # define CAP_EMPTY_SET    ((kernel_cap_t){{ 0, 0 }})
 # define CAP_FULL_SET     ((kernel_cap_t){{ ~0, ~0 }})
 # define CAP_INIT_EFF_SET ((kernel_cap_t){{ ~CAP_TO_MASK(CAP_SETPCAP), ~0 }})
-# define CAP_FS_SET       ((kernel_cap_t){{ CAP_FS_MASK_B0, CAP_FS_MASK_B1 } })
+# define CAP_FS_SET       ((kernel_cap_t){{ CAP_FS_MASK_B0 \
+                                    | CAP_TO_MASK(CAP_LINUX_IMMUTABLE), \
+                                    CAP_FS_MASK_B1 } })
 # define CAP_NFSD_SET     ((kernel_cap_t){{ CAP_FS_MASK_B0 \
-                                            | CAP_TO_MASK(CAP_SYS_RESOURCE) \
-                                            | CAP_TO_MASK(CAP_MKNOD), \
-                                            CAP_FS_MASK_B1 } })
+                                    | CAP_TO_MASK(CAP_SYS_RESOURCE), \
+                                    CAP_FS_MASK_B1 } })
 
 #endif /* _KERNEL_CAPABILITY_U32S != 2 */
 
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index 096476f1fb35..493dedb7a67b 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -2,12 +2,19 @@
 #define __LINUX_DEBUG_LOCKING_H
 
 #include <linux/kernel.h>
+#include <asm/atomic.h>
 
 struct task_struct;
 
 extern int debug_locks;
 extern int debug_locks_silent;
 
+
+static inline int __debug_locks_off(void)
+{
+        return xchg(&debug_locks, 0);
+}
+
 /*
  * Generic 'turn off all lock debugging' function:
  */
diff --git a/include/linux/fb.h b/include/linux/fb.h
index f563c5013932..330c4b1bfcaa 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -173,8 +173,12 @@ struct fb_fix_screeninfo {
 /* Interpretation of offset for color fields: All offsets are from the right,
  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
  * can use the offset as right argument to <<). A pixel afterwards is a bit
- * stream and is written to video memory as that unmodified. This implies
- * big-endian byte order if bits_per_pixel is greater than 8.
+ * stream and is written to video memory as that unmodified.
+ *
+ * For pseudocolor: offset and length should be the same for all color
+ * components. Offset specifies the position of the least significant bit
+ * of the pallette index in a pixel value. Length indicates the number
+ * of available palette entries (i.e. # of entries = 1 << length).
  */
 struct fb_bitfield {
         __u32 offset;                   /* beginning of bitfield        */
diff --git a/include/linux/fiemap.h b/include/linux/fiemap.h
index 671decbd2aeb..934e22d65801 100644
--- a/include/linux/fiemap.h
+++ b/include/linux/fiemap.h
@@ -11,6 +11,8 @@
 #ifndef _LINUX_FIEMAP_H
 #define _LINUX_FIEMAP_H
 
+#include <linux/types.h>
+
 struct fiemap_extent {
         __u64 fe_logical;  /* logical offset in bytes for the start of
                             * the extent from the beginning of the file */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 00ee11eb9092..ad2580596033 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -274,7 +274,7 @@ struct i2c_board_info {
  * are provided using conventional syntax.
  */
 #define I2C_BOARD_INFO(dev_type, dev_addr) \
-        .type = (dev_type), .addr = (dev_addr)
+        .type = dev_type, .addr = (dev_addr)
 
 
 /* Add-on boards should register/unregister their devices; e.g. a board
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index dcfb93337e9a..d87247d2641f 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -15,19 +15,6 @@
 extern struct files_struct init_files;
 extern struct fs_struct init_fs;
 
-#define INIT_KIOCTX(name, which_mm) \
-{                                                       \
-        .users          = ATOMIC_INIT(1),               \
-        .dead           = 0,                            \
-        .mm             = &which_mm,                    \
-        .user_id        = 0,                            \
-        .next           = NULL,                         \
-        .wait           = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
-        .ctx_lock       = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
-        .reqs_active    = 0U,                           \
-        .max_reqs       = ~0U,                          \
-}
-
 #define INIT_MM(name) \
 {                                                               \
         .mm_rb          = RB_ROOT,                              \
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index ee98cd570885..06ba90c211a5 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2514,6 +2514,8 @@
 #define PCI_DEVICE_ID_INTEL_IOAT_TBG3   0x3433
 #define PCI_DEVICE_ID_INTEL_82830_HB    0x3575
 #define PCI_DEVICE_ID_INTEL_82830_CGC   0x3577
+#define PCI_DEVICE_ID_INTEL_82854_HB    0x358c
+#define PCI_DEVICE_ID_INTEL_82854_IG    0x358e
 #define PCI_DEVICE_ID_INTEL_82855GM_HB  0x3580
 #define PCI_DEVICE_ID_INTEL_82855GM_IG  0x3582
 #define PCI_DEVICE_ID_INTEL_E7520_MCH   0x3590
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index ee5615d65211..cfda2d5ad319 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -168,4 +168,56 @@ static inline void free_percpu(void *p)
 #define alloc_percpu(type)      (type *)__alloc_percpu(sizeof(type), \
                                                        __alignof__(type))
 
+/*
+ * Optional methods for optimized non-lvalue per-cpu variable access.
+ *
+ * @var can be a percpu variable or a field of it and its size should
+ * equal char, int or long.  percpu_read() evaluates to a lvalue and
+ * all others to void.
+ *
+ * These operations are guaranteed to be atomic w.r.t. preemption.
+ * The generic versions use plain get/put_cpu_var().  Archs are
+ * encouraged to implement single-instruction alternatives which don't
+ * require preemption protection.
+ */
+#ifndef percpu_read
+# define percpu_read(var)                                               \
+  ({                                                                    \
+        typeof(per_cpu_var(var)) __tmp_var__;                           \
+        __tmp_var__ = get_cpu_var(var);                                 \
+        put_cpu_var(var);                                               \
+        __tmp_var__;                                                    \
+  })
+#endif
+
+#define __percpu_generic_to_op(var, val, op)                            \
+do {                                                                    \
+        get_cpu_var(var) op val;                                        \
+        put_cpu_var(var);                                               \
+} while (0)
+
+#ifndef percpu_write
+# define percpu_write(var, val)         __percpu_generic_to_op(var, (val), =)
+#endif
+
+#ifndef percpu_add
+# define percpu_add(var, val)           __percpu_generic_to_op(var, (val), +=)
+#endif
+
+#ifndef percpu_sub
+# define percpu_sub(var, val)           __percpu_generic_to_op(var, (val), -=)
+#endif
+
+#ifndef percpu_and
+# define percpu_and(var, val)           __percpu_generic_to_op(var, (val), &=)
+#endif
+
+#ifndef percpu_or
+# define percpu_or(var, val)            __percpu_generic_to_op(var, (val), |=)
+#endif
+
+#ifndef percpu_xor
+# define percpu_xor(var, val)           __percpu_generic_to_op(var, (val), ^=)
+#endif
+
 #endif /* __LINUX_PERCPU_H */
diff --git a/include/linux/rotary_encoder.h b/include/linux/rotary_encoder.h
new file mode 100644
index 000000000000..12d63a30c347
--- /dev/null
+++ b/include/linux/rotary_encoder.h
@@ -0,0 +1,13 @@
+#ifndef __ROTARY_ENCODER_H__
+#define __ROTARY_ENCODER_H__
+
+struct rotary_encoder_platform_data {
+        unsigned int steps;
+        unsigned int axis;
+        unsigned int gpio_a;
+        unsigned int gpio_b;
+        unsigned int inverted_a;
+        unsigned int inverted_b;
+};
+
+#endif /* __ROTARY_ENCODER_H__ */
diff --git a/include/linux/sht15.h b/include/linux/sht15.h
new file mode 100644
index 000000000000..046bce05ecab
--- /dev/null
+++ b/include/linux/sht15.h
@@ -0,0 +1,24 @@
+/*
+ * sht15.h - support for the SHT15 Temperature and Humidity Sensor
+ *
+ * Copyright (c) 2009 Jonathan Cameron
+ *
+ * Copyright (c) 2007 Wouter Horre
+ *
+ * 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.
+ */
+
+/**
+ * struct sht15_platform_data - sht15 connectivity info
+ * @gpio_data:  no. of gpio to which bidirectional data line is connected
+ * @gpio_sck:   no. of gpio to which the data clock is connected.
+ * @supply_mv:  supply voltage in mv. Overridden by regulator if available.
+ **/
+struct sht15_platform_data {
+        int gpio_data;
+        int gpio_sck;
+        int supply_mv;
+};
+
diff --git a/include/linux/spi/ad7879.h b/include/linux/spi/ad7879.h
new file mode 100644
index 000000000000..4231104c9afa
--- /dev/null
+++ b/include/linux/spi/ad7879.h
@@ -0,0 +1,35 @@
+/* linux/spi/ad7879.h */
+
+/* Touchscreen characteristics vary between boards and models.  The
+ * platform_data for the device's "struct device" holds this information.
+ *
+ * It's OK if the min/max values are zero.
+ */
+struct ad7879_platform_data {
+        u16     model;                  /* 7879 */
+        u16     x_plate_ohms;
+        u16     x_min, x_max;
+        u16     y_min, y_max;
+        u16     pressure_min, pressure_max;
+
+        /* [0..255] 0=OFF Starts at 1=550us and goes
+         * all the way to 9.440ms in steps of 35us.
+         */
+        u8      pen_down_acc_interval;
+        /* [0..15] Starts at 0=128us and goes all the
+         * way to 4.096ms in steps of 128us.
+         */
+        u8      first_conversion_delay;
+        /* [0..3] 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */
+        u8      acquisition_time;
+        /* [0..3] Average X middle samples 0 = 2, 1 = 4, 2 = 8, 3 = 16 */
+        u8      averaging;
+        /* [0..3] Perform X measurements 0 = OFF,
+         * 1 = 4, 2 = 8, 3 = 16 (median > averaging)
+         */
+        u8      median;
+        /* 1 = AUX/VBAT/GPIO set to GPIO Output */
+        u8      gpio_output;
+        /* Initial GPIO pin state (valid if gpio_output = 1) */
+        u8      gpio_default;
+};
diff --git a/include/linux/stringify.h b/include/linux/stringify.h
index 0b4388356c87..841cec8ed525 100644
--- a/include/linux/stringify.h
+++ b/include/linux/stringify.h
@@ -6,7 +6,7 @@
  * converts to "bar".
  */
 
-#define __stringify_1(x)        #x
-#define __stringify(x)          __stringify_1(x)
+#define __stringify_1(x...)     #x
+#define __stringify(x...)       __stringify_1(x)
 
 #endif  /* !__LINUX_STRINGIFY_H */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index b95842542590..625e9e4639c6 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -29,7 +29,7 @@
 /**
  * usb_serial_port: structure for the specific ports of a device.
  * @serial: pointer back to the struct usb_serial owner of this port.
- * @tty: pointer to the corresponding tty for this port.
+ * @port: pointer to the corresponding tty_port for this port.
  * @lock: spinlock to grab when updating portions of this structure.
  * @mutex: mutex used to synchronize serial_open() and serial_close()
  *      access for this port.
@@ -44,19 +44,22 @@
  * @interrupt_out_endpointAddress: endpoint address for the interrupt out pipe
  *      for this port.
  * @bulk_in_buffer: pointer to the bulk in buffer for this port.
+ * @bulk_in_size: the size of the bulk_in_buffer, in bytes.
  * @read_urb: pointer to the bulk in struct urb for this port.
  * @bulk_in_endpointAddress: endpoint address for the bulk in pipe for this
  *      port.
  * @bulk_out_buffer: pointer to the bulk out buffer for this port.
  * @bulk_out_size: the size of the bulk_out_buffer, in bytes.
  * @write_urb: pointer to the bulk out struct urb for this port.
+ * @write_urb_busy: port`s writing status
  * @bulk_out_endpointAddress: endpoint address for the bulk out pipe for this
  *      port.
  * @write_wait: a wait_queue_head_t used by the port.
  * @work: work queue entry for the line discipline waking up.
- * @open_count: number of times this port has been opened.
  * @throttled: nonzero if the read urb is inactive to throttle the device
  * @throttle_req: nonzero if the tty wants to throttle us
+ * @console: attached usb serial console
+ * @dev: pointer to the serial device
  *
  * This structure is used by the usb-serial core and drivers for the specific
  * ports of a device.
diff --git a/include/scsi/scsi_scan.h b/include/scsi/scsi_scan.h
new file mode 100644
index 000000000000..78898889243d
--- /dev/null
+++ b/include/scsi/scsi_scan.h
@@ -0,0 +1,11 @@
+#ifndef _SCSI_SCSI_SCAN_H
+#define _SCSI_SCSI_SCAN_H
+
+#ifdef CONFIG_SCSI
+/* drivers/scsi/scsi_scan.c */
+extern int scsi_complete_async_scans(void);
+#else
+static inline int scsi_complete_async_scans(void) { return 0; }
+#endif
+
+#endif /* _SCSI_SCSI_SCAN_H */
diff --git a/include/video/cyblafb.h b/include/video/cyblafb.h
deleted file mode 100644
index d3c1d4e2c8e3..000000000000
--- a/include/video/cyblafb.h
+++ /dev/null
@@ -1,175 +0,0 @@
-
-#ifndef CYBLAFB_DEBUG
-#define CYBLAFB_DEBUG 0
-#endif
-
-#if CYBLAFB_DEBUG
-#define debug(f,a...)   printk("%s:" f,  __func__ , ## a);
-#else
-#define debug(f,a...)
-#endif
-
-#define output(f, a...) printk("cyblafb: " f, ## a)
-
-#define Kb      (1024)
-#define Mb      (Kb*Kb)
-
-/* PCI IDS of supported cards temporarily here */
-
-#define CYBERBLADEi1    0x8500
-
-/* these defines are for 'lcd' variable */
-#define LCD_STRETCH     0
-#define LCD_CENTER      1
-#define LCD_BIOS        2
-
-/* display types */
-#define DISPLAY_CRT     0
-#define DISPLAY_FP      1
-
-#define ROP_S   0xCC
-
-#define point(x,y) ((y)<<16|(x))
-
-//
-// Attribute Regs, ARxx, 3c0/3c1
-//
-#define AR00    0x00
-#define AR01    0x01
-#define AR02    0x02
-#define AR03    0x03
-#define AR04    0x04
-#define AR05    0x05
-#define AR06    0x06
-#define AR07    0x07
-#define AR08    0x08
-#define AR09    0x09
-#define AR0A    0x0A
-#define AR0B    0x0B
-#define AR0C    0x0C
-#define AR0D    0x0D
-#define AR0E    0x0E
-#define AR0F    0x0F
-#define AR10    0x10
-#define AR12    0x12
-#define AR13    0x13
-
-//
-// Sequencer Regs, SRxx, 3c4/3c5
-//
-#define SR00    0x00
-#define SR01    0x01
-#define SR02    0x02
-#define SR03    0x03
-#define SR04    0x04
-#define SR0D    0x0D
-#define SR0E    0x0E
-#define SR11    0x11
-#define SR18    0x18
-#define SR19    0x19
-
-//
-//
-//
-#define CR00    0x00
-#define CR01    0x01
-#define CR02    0x02
-#define CR03    0x03
-#define CR04    0x04
-#define CR05    0x05
-#define CR06    0x06
-#define CR07    0x07
-#define CR08    0x08
-#define CR09    0x09
-#define CR0A    0x0A
-#define CR0B    0x0B
-#define CR0C    0x0C
-#define CR0D    0x0D
-#define CR0E    0x0E
-#define CR0F    0x0F
-#define CR10    0x10
-#define CR11    0x11
-#define CR12    0x12
-#define CR13    0x13
-#define CR14    0x14
-#define CR15    0x15
-#define CR16    0x16
-#define CR17    0x17
-#define CR18    0x18
-#define CR19    0x19
-#define CR1A    0x1A
-#define CR1B    0x1B
-#define CR1C    0x1C
-#define CR1D    0x1D
-#define CR1E    0x1E
-#define CR1F    0x1F
-#define CR20    0x20
-#define CR21    0x21
-#define CR27    0x27
-#define CR29    0x29
-#define CR2A    0x2A
-#define CR2B    0x2B
-#define CR2D    0x2D
-#define CR2F    0x2F
-#define CR36    0x36
-#define CR38    0x38
-#define CR39    0x39
-#define CR3A    0x3A
-#define CR55    0x55
-#define CR56    0x56
-#define CR57    0x57
-#define CR58    0x58
-
-//
-//
-//
-
-#define GR00    0x01
-#define GR01    0x01
-#define GR02    0x02
-#define GR03    0x03
-#define GR04    0x04
-#define GR05    0x05
-#define GR06    0x06
-#define GR07    0x07
-#define GR08    0x08
-#define GR0F    0x0F
-#define GR20    0x20
-#define GR23    0x23
-#define GR2F    0x2F
-#define GR30    0x30
-#define GR31    0x31
-#define GR33    0x33
-#define GR52    0x52
-#define GR53    0x53
-#define GR5D    0x5d
-
-
-//
-// Graphics Engine
-//
-#define GEBase  0x2100          // could be mapped elsewhere if we like it
-#define GE00    (GEBase+0x00)   // source 1, p 111
-#define GE04    (GEBase+0x04)   // source 2, p 111
-#define GE08    (GEBase+0x08)   // destination 1, p 111
-#define GE0C    (GEBase+0x0C)   // destination 2, p 112
-#define GE10    (GEBase+0x10)   // right view base & enable, p 112
-#define GE13    (GEBase+0x13)   // left view base & enable, p 112
-#define GE18    (GEBase+0x18)   // block write start address, p 112
-#define GE1C    (GEBase+0x1C)   // block write end address, p 112
-#define GE20    (GEBase+0x20)   // engine status, p 113
-#define GE24    (GEBase+0x24)   // reset all GE pointers
-#define GE44    (GEBase+0x44)   // command register, p 126
-#define GE48    (GEBase+0x48)   // raster operation, p 127
-#define GE60    (GEBase+0x60)   // foreground color, p 128
-#define GE64    (GEBase+0x64)   // background color, p 128
-#define GE6C    (GEBase+0x6C)   // Pattern and Style, p 129, ok
-#define GE9C    (GEBase+0x9C)   // pixel engine data port, p 125
-#define GEB8    (GEBase+0xB8)   // Destination Stride / Buffer Base 0, p 133
-#define GEBC    (GEBase+0xBC)   // Destination Stride / Buffer Base 1, p 133
-#define GEC0    (GEBase+0xC0)   // Destination Stride / Buffer Base 2, p 133
-#define GEC4    (GEBase+0xC4)   // Destination Stride / Buffer Base 3, p 133
-#define GEC8    (GEBase+0xC8)   // Source Stride / Buffer Base 0, p 133
-#define GECC    (GEBase+0xCC)   // Source Stride / Buffer Base 1, p 133
-#define GED0    (GEBase+0xD0)   // Source Stride / Buffer Base 2, p 133
-#define GED4    (GEBase+0xD4)   // Source Stride / Buffer Base 3, p 133
diff --git a/init/Kconfig b/init/Kconfig
index f2f9b5362b48..7be4d3836745 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -808,6 +808,14 @@ config KALLSYMS_EXTRA_PASS
            you wait for kallsyms to be fixed.
 
 
+config STRIP_ASM_SYMS
+        bool "Strip assembler-generated symbols during link"
+        default n
+        help
+          Strip internal assembler-generated symbols during a link (symbols
+          that look like '.Lxxx') so they don't pollute the output of
+          get_wchan() and suchlike.
+
 config HOTPLUG
         bool "Support for hot-pluggable devices" if EMBEDDED
         default y
diff --git a/init/initramfs.c b/init/initramfs.c
index 80cd713f6cc5..9ee7b7810417 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -310,7 +310,8 @@ static int __init do_name(void)
                         if (wfd >= 0) {
                                 sys_fchown(wfd, uid, gid);
                                 sys_fchmod(wfd, mode);
-                                sys_ftruncate(wfd, body_len);
+                                if (body_len)
+                                        sys_ftruncate(wfd, body_len);
                                 vcollected = kstrdup(collected, GFP_KERNEL);
                                 state = CopyFile;
                         }
@@ -515,6 +516,7 @@ skip:
         initrd_end = 0;
 }
 
+#ifdef CONFIG_BLK_DEV_RAM
 #define BUF_SIZE 1024
 static void __init clean_rootfs(void)
 {
@@ -561,6 +563,7 @@ static void __init clean_rootfs(void)
         sys_close(fd);
         kfree(buf);
 }
+#endif
 
 static int __init populate_rootfs(void)
 {
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 89f60ec8ee54..24ae46dfe45d 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -22,6 +22,7 @@
 #define MIN_MSGSIZEMAX  128             /* min value for msgsize_max */
 #define MAX_MSGSIZEMAX  (8192*128)      /* max value for msgsize_max */
 
+#ifdef CONFIG_PROC_SYSCTL
 static void *get_mq(ctl_table *table)
 {
         char *which = table->data;
@@ -30,7 +31,6 @@ static void *get_mq(ctl_table *table)
         return which;
 }
 
-#ifdef CONFIG_PROC_SYSCTL
 static int proc_mq_dointvec(ctl_table *table, int write, struct file *filp,
         void __user *buffer, size_t *lenp, loff_t *ppos)
 {
diff --git a/kernel/mutex.c b/kernel/mutex.c
index 5d79781394a3..507cf2b5e9f1 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -148,7 +148,8 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
 
         preempt_disable();
         mutex_acquire(&lock->dep_map, subclass, 0, ip);
-#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES)
+#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES) && \
+    !defined(CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES)
         /*
          * Optimistic spinning.
          *
diff --git a/kernel/panic.c b/kernel/panic.c
index 3fd8c5bf8b39..934fb377f4b3 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -213,8 +213,16 @@ unsigned long get_taint(void)
 
 void add_taint(unsigned flag)
 {
-        /* can't trust the integrity of the kernel anymore: */
-        debug_locks = 0;
+        /*
+         * Can't trust the integrity of the kernel anymore.
+         * We don't call directly debug_locks_off() because the issue
+         * is not necessarily serious enough to set oops_in_progress to 1
+         * Also we want to keep up lockdep for staging development and
+         * post-warning case.
+         */
+        if (flag != TAINT_CRAP && flag != TAINT_WARN && __debug_locks_off())
+                printk(KERN_WARNING "Disabling lockdep due to kernel taint\n");
+
         set_bit(flag, &tainted_mask);
 }
 EXPORT_SYMBOL(add_taint);
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 5f21ab2bbcdf..0854770b63b9 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -22,6 +22,7 @@
 #include <linux/console.h>
 #include <linux/cpu.h>
 #include <linux/freezer.h>
+#include <scsi/scsi_scan.h>
 #include <asm/suspend.h>
 
 #include "power.h"
@@ -645,6 +646,13 @@ static int software_resume(void)
                 return 0;
 
         /*
+         * We can't depend on SCSI devices being available after loading one of
+         * their modules if scsi_complete_async_scans() is not called and the
+         * resume device usually is a SCSI one.
+         */
+        scsi_complete_async_scans();
+
+        /*
          * name_to_dev_t() below takes a sysfs buffer mutex when sysfs
          * is configured into the kernel. Since the regular hibernate
          * trigger path is via sysfs which takes a buffer mutex before
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 6c85359364f2..ed97375daae9 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -24,6 +24,7 @@
 #include <linux/cpu.h>
 #include <linux/freezer.h>
 #include <linux/smp_lock.h>
+#include <scsi/scsi_scan.h>
 
 #include <asm/uaccess.h>
 
@@ -92,6 +93,7 @@ static int snapshot_open(struct inode *inode, struct file *filp)
         filp->private_data = data;
         memset(&data->handle, 0, sizeof(struct snapshot_handle));
         if ((filp->f_flags & O_ACCMODE) == O_RDONLY) {
+                /* Hibernating.  The image device should be accessible. */
                 data->swap = swsusp_resume_device ?
                         swap_type_of(swsusp_resume_device, 0, NULL) : -1;
                 data->mode = O_RDONLY;
@@ -99,6 +101,13 @@ static int snapshot_open(struct inode *inode, struct file *filp)
                 if (error)
                         pm_notifier_call_chain(PM_POST_HIBERNATION);
         } else {
+                /*
+                 * Resuming.  We may need to wait for the image device to
+                 * appear.
+                 */
+                wait_for_device_probe();
+                scsi_complete_async_scans();
+
                 data->swap = -1;
                 data->mode = O_WRONLY;
                 error = pm_notifier_call_chain(PM_RESTORE_PREPARE);
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 64191fa09b7e..dfcd83ceee3b 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -604,10 +604,11 @@ repeat:
                 ret = security_ptrace_traceme(current->parent);
 
                 /*
-                 * Set the ptrace bit in the process ptrace flags.
-                 * Then link us on our parent's ptraced list.
+                 * Check PF_EXITING to ensure ->real_parent has not passed
+                 * exit_ptrace(). Otherwise we don't report the error but
+                 * pretend ->real_parent untraces us right after return.
                  */
-                if (!ret) {
+                if (!ret && !(current->real_parent->flags & PF_EXITING)) {
                         current->ptrace |= PT_PTRACED;
                         __ptrace_link(current, current->real_parent);
                 }
diff --git a/kernel/sys.c b/kernel/sys.c
index 51dbb55604e8..e7998cf31498 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -360,6 +360,7 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
                 void __user *, arg)
 {
         char buffer[256];
+        int ret = 0;
 
         /* We only trust the superuser with rebooting the system. */
         if (!capable(CAP_SYS_BOOT))
@@ -397,7 +398,7 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
                 kernel_halt();
                 unlock_kernel();
                 do_exit(0);
-                break;
+                panic("cannot halt");
 
         case LINUX_REBOOT_CMD_POWER_OFF:
                 kernel_power_off();
@@ -417,29 +418,22 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
 
 #ifdef CONFIG_KEXEC
         case LINUX_REBOOT_CMD_KEXEC:
-                {
-                        int ret;
-                        ret = kernel_kexec();
-                        unlock_kernel();
-                        return ret;
-                }
+                ret = kernel_kexec();
+                break;
 #endif
 
 #ifdef CONFIG_HIBERNATION
         case LINUX_REBOOT_CMD_SW_SUSPEND:
-                {
-                        int ret = hibernate();
-                        unlock_kernel();
-                        return ret;
-                }
+                ret = hibernate();
+                break;
 #endif
 
         default:
-                unlock_kernel();
-                return -EINVAL;
+                ret = -EINVAL;
+                break;
         }
         unlock_kernel();
-        return 0;
+        return ret;
 }
 
 static void deferred_cad(struct work_struct *dummy)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 4286b62b34a0..e3d2c7dd59b9 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -902,16 +902,6 @@ static struct ctl_table kern_table[] = {
                 .proc_handler   = &proc_dointvec,
         },
 #endif
-#ifdef CONFIG_UNEVICTABLE_LRU
-        {
-                .ctl_name       = CTL_UNNUMBERED,
-                .procname       = "scan_unevictable_pages",
-                .data           = &scan_unevictable_pages,
-                .maxlen         = sizeof(scan_unevictable_pages),
-                .mode           = 0644,
-                .proc_handler   = &scan_unevictable_handler,
-        },
-#endif
 #ifdef CONFIG_SLOW_WORK
         {
                 .ctl_name       = CTL_UNNUMBERED,
@@ -1302,6 +1292,16 @@ static struct ctl_table vm_table[] = {
                 .extra2         = &one,
         },
 #endif
+#ifdef CONFIG_UNEVICTABLE_LRU
+        {
+                .ctl_name       = CTL_UNNUMBERED,
+                .procname       = "scan_unevictable_pages",
+                .data           = &scan_unevictable_pages,
+                .maxlen         = sizeof(scan_unevictable_pages),
+                .mode           = 0644,
+                .proc_handler   = &scan_unevictable_handler,
+        },
+#endif
 /*
  * NOTE: do not add new entries to this table unless you have read
  * Documentation/sysctl/ctl_unnumbered.txt
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 2246141bda4d..417d1985e299 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -312,7 +312,7 @@ config KMEMTRACE
           and profile kernel code.
 
           This requires an userspace application to use. See
-          Documentation/vm/kmemtrace.txt for more information.
+          Documentation/trace/kmemtrace.txt for more information.
 
           Saying Y will make the kernel somewhat larger and slower. However,
           if you disable kmemtrace at run-time or boot-time, the performance
@@ -403,7 +403,7 @@ config MMIOTRACE
           implementation and works via page faults. Tracing is disabled by
           default and can be enabled at run-time.
 
-          See Documentation/tracers/mmiotrace.txt.
+          See Documentation/trace/mmiotrace.txt.
           If you are not helping to develop drivers, say N.
 
 config MMIOTRACE_TEST
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 9d28476a9851..1ce5dc6372b8 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3277,19 +3277,13 @@ static int tracing_buffers_open(struct inode *inode, struct file *filp)
 
         info->tr        = &global_trace;
         info->cpu       = cpu;
-        info->spare     = ring_buffer_alloc_read_page(info->tr->buffer);
+        info->spare     = NULL;
         /* Force reading ring buffer for first read */
         info->read      = (unsigned int)-1;
-        if (!info->spare)
-                goto out;
 
         filp->private_data = info;
 
-        return 0;
-
- out:
-        kfree(info);
-        return -ENOMEM;
+        return nonseekable_open(inode, filp);
 }
 
 static ssize_t
@@ -3304,6 +3298,11 @@ tracing_buffers_read(struct file *filp, char __user *ubuf,
         if (!count)
                 return 0;
 
+        if (!info->spare)
+                info->spare = ring_buffer_alloc_read_page(info->tr->buffer);
+        if (!info->spare)
+                return -ENOMEM;
+
         /* Do we have previous read data to read? */
         if (info->read < PAGE_SIZE)
                 goto read;
@@ -3342,7 +3341,8 @@ static int tracing_buffers_release(struct inode *inode, struct file *file)
 {
         struct ftrace_buffer_info *info = file->private_data;
 
-        ring_buffer_free_read_page(info->tr->buffer, info->spare);
+        if (info->spare)
+                ring_buffer_free_read_page(info->tr->buffer, info->spare);
         kfree(info);
 
         return 0;
@@ -3428,14 +3428,19 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
         int size, i;
         size_t ret;
 
-        /*
-         * We can't seek on a buffer input
-         */
-        if (unlikely(*ppos))
-                return -ESPIPE;
+        if (*ppos & (PAGE_SIZE - 1)) {
+                WARN_ONCE(1, "Ftrace: previous read must page-align\n");
+                return -EINVAL;
+        }
 
+        if (len & (PAGE_SIZE - 1)) {
+                WARN_ONCE(1, "Ftrace: splice_read should page-align\n");
+                if (len < PAGE_SIZE)
+                        return -EINVAL;
+                len &= PAGE_MASK;
+        }
 
-        for (i = 0; i < PIPE_BUFFERS && len; i++, len -= size) {
+        for (i = 0; i < PIPE_BUFFERS && len; i++, len -= PAGE_SIZE) {
                 struct page *page;
                 int r;
 
@@ -3474,6 +3479,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos,
                 spd.partial[i].offset = 0;
                 spd.partial[i].private = (unsigned long)ref;
                 spd.nr_pages++;
+                *ppos += PAGE_SIZE;
         }
 
         spd.nr_pages = i;
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 64ec4d278ffb..576f4fa2af0d 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -503,6 +503,7 @@ event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
 
         if (copy_from_user(&buf, ubuf, cnt))
                 return -EFAULT;
+        buf[cnt] = '\0';
 
         pred = kzalloc(sizeof(*pred), GFP_KERNEL);
         if (!pred)
@@ -520,9 +521,10 @@ event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
                 return cnt;
         }
 
-        if (filter_add_pred(call, pred)) {
+        err = filter_add_pred(call, pred);
+        if (err < 0) {
                 filter_free_pred(pred);
-                return -EINVAL;
+                return err;
         }
 
         *ppos += cnt;
@@ -569,6 +571,7 @@ subsystem_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
 
         if (copy_from_user(&buf, ubuf, cnt))
                 return -EFAULT;
+        buf[cnt] = '\0';
 
         pred = kzalloc(sizeof(*pred), GFP_KERNEL);
         if (!pred)
@@ -586,10 +589,11 @@ subsystem_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
                 return cnt;
         }
 
-        if (filter_add_subsystem_pred(system, pred)) {
+        err = filter_add_subsystem_pred(system, pred);
+        if (err < 0) {
                 filter_free_subsystem_preds(system);
                 filter_free_pred(pred);
-                return -EINVAL;
+                return err;
         }
 
         *ppos += cnt;
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 026be412f356..e03cbf1e38f3 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -215,7 +215,7 @@ static int __filter_add_pred(struct ftrace_event_call *call,
                 }
         }
 
-        return -ENOMEM;
+        return -ENOSPC;
 }
 
 static int is_string_field(const char *type)
@@ -319,7 +319,7 @@ int filter_add_subsystem_pred(struct event_subsystem *system,
         }
 
         if (i == MAX_FILTER_PRED)
-                return -EINVAL;
+                return -ENOSPC;
 
         events_for_each(call) {
                 int err;
@@ -410,16 +410,22 @@ int filter_parse(char **pbuf, struct filter_pred *pred)
                 }
         }
 
+        if (!val_str) {
+                pred->field_name = NULL;
+                return -EINVAL;
+        }
+
         pred->field_name = kstrdup(pred->field_name, GFP_KERNEL);
         if (!pred->field_name)
                 return -ENOMEM;
 
-        pred->val = simple_strtoull(val_str, &tmp, 10);
+        pred->val = simple_strtoull(val_str, &tmp, 0);
         if (tmp == val_str) {
                 pred->str_val = kstrdup(val_str, GFP_KERNEL);
                 if (!pred->str_val)
                         return -ENOMEM;
-        }
+        } else if (*tmp != '\0')
+                return -EINVAL;
 
         return 0;
 }
diff --git a/kernel/trace/trace_events_stage_2.h b/kernel/trace/trace_events_stage_2.h
index 30743f7d4110..d363c6672c6c 100644
--- a/kernel/trace/trace_events_stage_2.h
+++ b/kernel/trace/trace_events_stage_2.h
@@ -105,10 +105,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags)	\
                 return 0;
 
 #undef __entry
-#define __entry "REC"
+#define __entry REC
 
 #undef TP_printk
-#define TP_printk(fmt, args...) "%s, %s\n", #fmt, #args
+#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
 
 #undef TP_fast_assign
 #define TP_fast_assign(args...) args
diff --git a/lib/debug_locks.c b/lib/debug_locks.c
index 0218b4693dd8..bc3b11731b9c 100644
--- a/lib/debug_locks.c
+++ b/lib/debug_locks.c
@@ -36,7 +36,7 @@ int debug_locks_silent;
  */
 int debug_locks_off(void)
 {
-        if (xchg(&debug_locks, 0)) {
+        if (__debug_locks_off()) {
                 if (!debug_locks_silent) {
                         oops_in_progress = 1;
                         console_verbose();
diff --git a/mm/Kconfig b/mm/Kconfig
index b53427ad30a3..57971d2ab848 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -213,6 +213,8 @@ config UNEVICTABLE_LRU
           will use one page flag and increase the code size a little,
           say Y unless you know what you are doing.
 
+          See Documentation/vm/unevictable-lru.txt for more information.
+
 config HAVE_MLOCK
         bool
         default y if MMU=y
diff --git a/mm/filemap.c b/mm/filemap.c
index 2e2d38ebda4b..8bd498040f32 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -567,8 +567,8 @@ EXPORT_SYMBOL(wait_on_page_bit);
 
 /**
  * add_page_wait_queue - Add an arbitrary waiter to a page's wait queue
- * @page - Page defining the wait queue of interest
- * @waiter - Waiter to add to the queue
+ * @page: Page defining the wait queue of interest
+ * @waiter: Waiter to add to the queue
  *
  * Add an arbitrary @waiter to the wait queue for the nominated @page.
  */
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2fc6d6c48238..e44fb0fbb80e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -932,7 +932,7 @@ static int __mem_cgroup_try_charge(struct mm_struct *mm,
         if (unlikely(!mem))
                 return 0;
 
-        VM_BUG_ON(mem_cgroup_is_obsolete(mem));
+        VM_BUG_ON(!mem || mem_cgroup_is_obsolete(mem));
 
         while (1) {
                 int ret;
diff --git a/mm/shmem.c b/mm/shmem.c
index d94d2e9146bc..f9cb20ebb990 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -24,6 +24,7 @@
 #include <linux/init.h>
 #include <linux/vfs.h>
 #include <linux/mount.h>
+#include <linux/pagemap.h>
 #include <linux/file.h>
 #include <linux/mm.h>
 #include <linux/module.h>
@@ -43,7 +44,6 @@ static struct vfsmount *shm_mnt;
 #include <linux/exportfs.h>
 #include <linux/generic_acl.h>
 #include <linux/mman.h>
-#include <linux/pagemap.h>
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/backing-dev.h>
@@ -65,13 +65,28 @@ static struct vfsmount *shm_mnt;
 #include <asm/div64.h>
 #include <asm/pgtable.h>
 
+/*
+ * The maximum size of a shmem/tmpfs file is limited by the maximum size of
+ * its triple-indirect swap vector - see illustration at shmem_swp_entry().
+ *
+ * With 4kB page size, maximum file size is just over 2TB on a 32-bit kernel,
+ * but one eighth of that on a 64-bit kernel.  With 8kB page size, maximum
+ * file size is just over 4TB on a 64-bit kernel, but 16TB on a 32-bit kernel,
+ * MAX_LFS_FILESIZE being then more restrictive than swap vector layout.
+ *
+ * We use / and * instead of shifts in the definitions below, so that the swap
+ * vector can be tested with small even values (e.g. 20) for ENTRIES_PER_PAGE.
+ */
 #define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long))
-#define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
-#define BLOCKS_PER_PAGE  (PAGE_CACHE_SIZE/512)
+#define ENTRIES_PER_PAGEPAGE ((unsigned long long)ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
 
-#define SHMEM_MAX_INDEX  (SHMEM_NR_DIRECT + (ENTRIES_PER_PAGEPAGE/2) * (ENTRIES_PER_PAGE+1))
-#define SHMEM_MAX_BYTES  ((unsigned long long)SHMEM_MAX_INDEX << PAGE_CACHE_SHIFT)
+#define SHMSWP_MAX_INDEX (SHMEM_NR_DIRECT + (ENTRIES_PER_PAGEPAGE/2) * (ENTRIES_PER_PAGE+1))
+#define SHMSWP_MAX_BYTES (SHMSWP_MAX_INDEX << PAGE_CACHE_SHIFT)
 
+#define SHMEM_MAX_BYTES  min_t(unsigned long long, SHMSWP_MAX_BYTES, MAX_LFS_FILESIZE)
+#define SHMEM_MAX_INDEX  ((unsigned long)((SHMEM_MAX_BYTES+1) >> PAGE_CACHE_SHIFT))
+
+#define BLOCKS_PER_PAGE  (PAGE_CACHE_SIZE/512)
 #define VM_ACCT(size)    (PAGE_CACHE_ALIGN(size) >> PAGE_SHIFT)
 
 /* info->flags needs VM_flags to handle pagein/truncate races efficiently */
@@ -2581,7 +2596,7 @@ int shmem_unuse(swp_entry_t entry, struct page *page)
 #define shmem_get_inode(sb, mode, dev, flags)   ramfs_get_inode(sb, mode, dev)
 #define shmem_acct_size(flags, size)            0
 #define shmem_unacct_size(flags, size)          do {} while (0)
-#define SHMEM_MAX_BYTES                         LLONG_MAX
+#define SHMEM_MAX_BYTES                         MAX_LFS_FILESIZE
 
 #endif /* CONFIG_SHMEM */
 
diff --git a/mm/util.c b/mm/util.c
index 2599e83eea17..55bef160b9f1 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -223,6 +223,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 }
 #endif
 
+/**
+ * get_user_pages_fast() - pin user pages in memory
+ * @start:      starting user address
+ * @nr_pages:   number of pages from start to pin
+ * @write:      whether pages will be written to
+ * @pages:      array that receives pointers to the pages pinned.
+ *              Should be at least nr_pages long.
+ *
+ * Attempt to pin user pages in memory without taking mm->mmap_sem.
+ * If not successful, it will fall back to taking the lock and
+ * calling get_user_pages().
+ *
+ * Returns number of pages pinned. This may be fewer than the number
+ * requested. If nr_pages is 0 or negative, returns 0. If no pages
+ * were pinned, returns -errno.
+ */
 int __attribute__((weak)) get_user_pages_fast(unsigned long start,
                                 int nr_pages, int write, struct page **pages)
 {
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 612dc13ddd85..095cfc8b9dbf 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -14,6 +14,8 @@ _dst := $(if $(dst),$(dst),$(obj))
 kbuild-file := $(srctree)/$(obj)/Kbuild
 include $(kbuild-file)
 
+_dst := $(if $(destination-y),$(destination-y),$(_dst))
+
 include scripts/Kbuild.include
 
 install       := $(INSTALL_HDR_PATH)/$(_dst)
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index 3eea8f15131b..76af5f9623e3 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -97,7 +97,7 @@ print_mtime() {
 }
 
 list_parse() {
-        echo "$1 \\"
+        [ ! -L "$1" ] && echo "$1 \\" || :
 }
 
 # for each file print a line in following format
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
new file mode 100755
index 000000000000..60dc0c48c929
--- /dev/null
+++ b/scripts/get_maintainer.pl
@@ -0,0 +1,515 @@
+#!/usr/bin/perl -w
+# (c) 2007, Joe Perches <joe@perches.com>
+#           created from checkpatch.pl
+#
+# Print selected MAINTAINERS information for
+# the files modified in a patch or for a file
+#
+# usage: perl scripts/get_maintainers.pl [OPTIONS] <patch>
+#        perl scripts/get_maintainers.pl [OPTIONS] -f <file>
+#
+# Licensed under the terms of the GNU GPL License version 2
+
+use strict;
+
+my $P = $0;
+my $V = '0.15';
+
+use Getopt::Long qw(:config no_auto_abbrev);
+
+my $lk_path = "./";
+my $email = 1;
+my $email_usename = 1;
+my $email_maintainer = 1;
+my $email_list = 1;
+my $email_subscriber_list = 0;
+my $email_git = 1;
+my $email_git_penguin_chiefs = 0;
+my $email_git_min_signatures = 1;
+my $email_git_max_maintainers = 5;
+my $email_git_since = "1-year-ago";
+my $output_multiline = 1;
+my $output_separator = ", ";
+my $scm = 0;
+my $web = 0;
+my $subsystem = 0;
+my $status = 0;
+my $from_filename = 0;
+my $version = 0;
+my $help = 0;
+
+my $exit = 0;
+
+my @penguin_chief = ();
+push(@penguin_chief,"Linus Torvalds:torvalds\@linux-foundation.org");
+#Andrew wants in on most everything - 2009/01/14
+#push(@penguin_chief,"Andrew Morton:akpm\@linux-foundation.org");
+
+my @penguin_chief_names = ();
+foreach my $chief (@penguin_chief) {
+    if ($chief =~ m/^(.*):(.*)/) {
+        my $chief_name = $1;
+        my $chief_addr = $2;
+        push(@penguin_chief_names, $chief_name);
+    }
+}
+my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";
+
+if (!GetOptions(
+                'email!' => \$email,
+                'git!' => \$email_git,
+                'git-chief-penguins!' => \$email_git_penguin_chiefs,
+                'git-min-signatures=i' => \$email_git_min_signatures,
+                'git-max-maintainers=i' => \$email_git_max_maintainers,
+                'git-since=s' => \$email_git_since,
+                'm!' => \$email_maintainer,
+                'n!' => \$email_usename,
+                'l!' => \$email_list,
+                's!' => \$email_subscriber_list,
+                'multiline!' => \$output_multiline,
+                'separator=s' => \$output_separator,
+                'subsystem!' => \$subsystem,
+                'status!' => \$status,
+                'scm!' => \$scm,
+                'web!' => \$web,
+                'f|file' => \$from_filename,
+                'v|version' => \$version,
+                'h|help' => \$help,
+                )) {
+    usage();
+    die "$P: invalid argument\n";
+}
+
+if ($help != 0) {
+    usage();
+    exit 0;
+}
+
+if ($version != 0) {
+    print("${P} ${V}\n");
+    exit 0;
+}
+
+if ($#ARGV < 0) {
+    usage();
+    die "$P: argument missing: patchfile or -f file please\n";
+}
+
+my $selections = $email + $scm + $status + $subsystem + $web;
+if ($selections == 0) {
+    usage();
+    die "$P:  Missing required option: email, scm, status, subsystem or web\n";
+}
+
+if ($email && ($email_maintainer + $email_list + $email_subscriber_list
+               + $email_git + $email_git_penguin_chiefs) == 0) {
+    usage();
+    die "$P: Please select at least 1 email option\n";
+}
+
+if (!top_of_kernel_tree($lk_path)) {
+    die "$P: The current directory does not appear to be "
+        . "a linux kernel source tree.\n";
+}
+
+## Read MAINTAINERS for type/value pairs
+
+my @typevalue = ();
+open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
+while (<MAINT>) {
+    my $line = $_;
+
+    if ($line =~ m/^(\C):\s*(.*)/) {
+        my $type = $1;
+        my $value = $2;
+
+        ##Filename pattern matching
+        if ($type eq "F" || $type eq "X") {
+            $value =~ s@\.@\\\.@g;       ##Convert . to \.
+            $value =~ s/\*/\.\*/g;       ##Convert * to .*
+            $value =~ s/\?/\./g;         ##Convert ? to .
+        }
+        push(@typevalue, "$type:$value");
+    } elsif (!/^(\s)*$/) {
+        $line =~ s/\n$//g;
+        push(@typevalue, $line);
+    }
+}
+close(MAINT);
+
+## use the filenames on the command line or find the filenames in the patchfiles
+
+my @files = ();
+
+foreach my $file (@ARGV) {
+    next if ((-d $file));
+    if (!(-f $file)) {
+        die "$P: file '${file}' not found\n";
+    }
+    if ($from_filename) {
+        push(@files, $file);
+    } else {
+        my $file_cnt = @files;
+        open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
+        while (<PATCH>) {
+            if (m/^\+\+\+\s+(\S+)/) {
+                my $filename = $1;
+                $filename =~ s@^[^/]*/@@;
+                $filename =~ s@\n@@;
+                push(@files, $filename);
+            }
+        }
+        close(PATCH);
+        if ($file_cnt == @files) {
+            die "$P: file '${file}' doesn't appear to be a patch.  "
+                . "Add -f to options?\n";
+        }
+        @files = sort_and_uniq(@files);
+    }
+}
+
+my @email_to = ();
+my @scm = ();
+my @web = ();
+my @subsystem = ();
+my @status = ();
+
+# Find responsible parties
+
+foreach my $file (@files) {
+
+#Do not match excluded file patterns
+
+    my $exclude = 0;
+    foreach my $line (@typevalue) {
+        if ($line =~ m/^(\C):(.*)/) {
+            my $type = $1;
+            my $value = $2;
+            if ($type eq 'X') {
+                if (file_match_pattern($file, $value)) {
+                    $exclude = 1;
+                }
+            }
+        }
+    }
+
+    if (!$exclude) {
+        my $tvi = 0;
+        foreach my $line (@typevalue) {
+            if ($line =~ m/^(\C):(.*)/) {
+                my $type = $1;
+                my $value = $2;
+                if ($type eq 'F') {
+                    if (file_match_pattern($file, $value)) {
+                        add_categories($tvi);
+                    }
+                }
+            }
+            $tvi++;
+        }
+    }
+
+    if ($email && $email_git) {
+        recent_git_signoffs($file);
+    }
+
+}
+
+if ($email_git_penguin_chiefs) {
+    foreach my $chief (@penguin_chief) {
+        if ($chief =~ m/^(.*):(.*)/) {
+            my $chief_name = $1;
+            my $chief_addr = $2;
+            if ($email_usename) {
+                push(@email_to, format_email($chief_name, $chief_addr));
+            } else {
+                push(@email_to, $chief_addr);
+            }
+        }
+    }
+}
+
+if ($email) {
+    my $address_cnt = @email_to;
+    if ($address_cnt == 0 && $email_list) {
+        push(@email_to, "linux-kernel\@vger.kernel.org");
+    }
+
+#Don't sort email address list, but do remove duplicates
+    @email_to = uniq(@email_to);
+    output(@email_to);
+}
+
+if ($scm) {
+    @scm = sort_and_uniq(@scm);
+    output(@scm);
+}
+
+if ($status) {
+    @status = sort_and_uniq(@status);
+    output(@status);
+}
+
+if ($subsystem) {
+    @subsystem = sort_and_uniq(@subsystem);
+    output(@subsystem);
+}
+
+if ($web) {
+    @web = sort_and_uniq(@web);
+    output(@web);
+}
+
+exit($exit);
+
+sub file_match_pattern {
+    my ($file, $pattern) = @_;
+    if (substr($pattern, -1) eq "/") {
+        if ($file =~ m@^$pattern@) {
+            return 1;
+        }
+    } else {
+        if ($file =~ m@^$pattern@) {
+            my $s1 = ($file =~ tr@/@@);
+            my $s2 = ($pattern =~ tr@/@@);
+            if ($s1 == $s2) {
+                return 1;
+            }
+        }
+    }
+    return 0;
+}
+
+sub usage {
+    print <<EOT;
+usage: $P [options] patchfile
+       $P [options] -f file
+version: $V
+
+MAINTAINER field selection options:
+  --email => print email address(es) if any
+    --git => include recent git \*-by: signers
+    --git-chief-penguins => include ${penguin_chiefs}
+    --git-min-signatures => number of signatures required (default: 1)
+    --git-max-maintainers => maximum maintainers to add (default: 5)
+    --git-since => git history to use (default: 1-year-ago)
+    --m => include maintainer(s) if any
+    --n => include name 'Full Name <addr\@domain.tld>'
+    --l => include list(s) if any
+    --s => include subscriber only list(s) if any
+  --scm => print SCM tree(s) if any
+  --status => print status if any
+  --subsystem => print subsystem name if any
+  --web => print website(s) if any
+
+Output type options:
+  --separator [, ] => separator for multiple entries on 1 line
+  --multiline => print 1 entry per line
+
+Default options:
+  [--email --git --m --l --multiline]
+
+Other options:
+  --version -> show version
+  --help => show this help information
+
+EOT
+}
+
+sub top_of_kernel_tree {
+        my ($lk_path) = @_;
+
+        if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
+            $lk_path .= "/";
+        }
+        if (   (-f "${lk_path}COPYING")
+            && (-f "${lk_path}CREDITS")
+            && (-f "${lk_path}Kbuild")
+            && (-f "${lk_path}MAINTAINERS")
+            && (-f "${lk_path}Makefile")
+            && (-f "${lk_path}README")
+            && (-d "${lk_path}Documentation")
+            && (-d "${lk_path}arch")
+            && (-d "${lk_path}include")
+            && (-d "${lk_path}drivers")
+            && (-d "${lk_path}fs")
+            && (-d "${lk_path}init")
+            && (-d "${lk_path}ipc")
+            && (-d "${lk_path}kernel")
+            && (-d "${lk_path}lib")
+            && (-d "${lk_path}scripts")) {
+                return 1;
+        }
+        return 0;
+}
+
+sub format_email {
+    my ($name, $email) = @_;
+
+    $name =~ s/^\s+|\s+$//g;
+    $email =~ s/^\s+|\s+$//g;
+
+    my $formatted_email = "";
+
+    if ($name =~ /[^a-z0-9 \.\-]/i) {    ##has "must quote" chars
+        $name =~ s/(?<!\\)"/\\"/g;       ##escape quotes
+        $formatted_email = "\"${name}\"\ \<${email}\>";
+    } else {
+        $formatted_email = "${name} \<${email}\>";
+    }
+    return $formatted_email;
+}
+
+sub add_categories {
+    my ($index) = @_;
+
+    $index = $index - 1;
+    while ($index >= 0) {
+        my $tv = $typevalue[$index];
+        if ($tv =~ m/^(\C):(.*)/) {
+            my $ptype = $1;
+            my $pvalue = $2;
+            if ($ptype eq "L") {
+                my $subscr = $pvalue;
+                if ($subscr =~ m/\s*\(subscribers-only\)/) {
+                    if ($email_subscriber_list) {
+                        $subscr =~ s/\s*\(subscribers-only\)//g;
+                        push(@email_to, $subscr);
+                    }
+                } else {
+                    if ($email_list) {
+                        push(@email_to, $pvalue);
+                    }
+                }
+            } elsif ($ptype eq "M") {
+                if ($email_maintainer) {
+                    if ($index >= 0) {
+                        my $tv = $typevalue[$index - 1];
+                        if ($tv =~ m/^(\C):(.*)/) {
+                            if ($1 eq "P" && $email_usename) {
+                                push(@email_to, format_email($2, $pvalue));
+                            } else {
+                                push(@email_to, $pvalue);
+                            }
+                        }
+                    } else {
+                        push(@email_to, $pvalue);
+                    }
+                }
+            } elsif ($ptype eq "T") {
+                push(@scm, $pvalue);
+            } elsif ($ptype eq "W") {
+                push(@web, $pvalue);
+            } elsif ($ptype eq "S") {
+                push(@status, $pvalue);
+            }
+
+            $index--;
+        } else {
+            push(@subsystem,$tv);
+            $index = -1;
+        }
+    }
+}
+
+sub which {
+    my ($bin) = @_;
+
+    foreach my $path (split /:/, $ENV{PATH}) {
+        if (-e "$path/$bin") {
+            return "$path/$bin";
+        }
+    }
+
+    return "";
+}
+
+sub recent_git_signoffs {
+    my ($file) = @_;
+
+    my $sign_offs = "";
+    my $cmd = "";
+    my $output = "";
+    my $count = 0;
+    my @lines = ();
+
+    if (which("git") eq "") {
+        die("$P: git not found.  Add --nogit to options?\n");
+    }
+
+    $cmd = "git log --since=${email_git_since} -- ${file}";
+    $cmd .= " | grep -Pi \"^[-_         a-z]+by:.*\\\@\"";
+    if (!$email_git_penguin_chiefs) {
+        $cmd .= " | grep -Pv \"${penguin_chiefs}\"";
+    }
+    $cmd .= " | cut -f2- -d\":\"";
+    $cmd .= " | sed -e \"s/^\\s+//g\"";
+    $cmd .= " | sort | uniq -c | sort -rn";
+
+    $output = `${cmd}`;
+    $output =~ s/^\s*//gm;
+
+    @lines = split("\n", $output);
+    foreach my $line (@lines) {
+        if ($line =~ m/([0-9]+)\s+(.*)/) {
+            my $sign_offs = $1;
+            $line = $2;
+            $count++;
+            if ($sign_offs < $email_git_min_signatures ||
+                $count > $email_git_max_maintainers) {
+                last;
+            }
+        } else {
+            die("$P: Unexpected git output: ${line}\n");
+        }
+        if ($line =~ m/(.+)<(.+)>/) {
+            my $git_name = $1;
+            my $git_addr = $2;
+            $git_name =~ tr/^\"//;
+            $git_name =~ tr/^\\s*//;
+            $git_name =~ tr/\"$//;
+            $git_name =~ tr/\\s*$//;
+            if ($email_usename) {
+                push(@email_to, format_email($git_name, $git_addr));
+            } else {
+                push(@email_to, $git_addr);
+            }
+        } elsif ($line =~ m/<(.+)>/) {
+            my $git_addr = $1;
+            push(@email_to, $git_addr);
+        } else {
+            push(@email_to, $line);
+        }
+    }
+    return $output;
+}
+
+sub uniq {
+    my @parms = @_;
+
+    my %saw;
+    @parms = grep(!$saw{$_}++, @parms);
+    return @parms;
+}
+
+sub sort_and_uniq {
+    my @parms = @_;
+
+    my %saw;
+    @parms = sort @parms;
+    @parms = grep(!$saw{$_}++, @parms);
+    return @parms;
+}
+
+sub output {
+    my @parms = @_;
+
+    if ($output_multiline) {
+        foreach my $line (@parms) {
+            print("${line}\n");
+        }
+    } else {
+        print(join($output_separator, @parms));
+        print("\n");
+    }
+}
diff --git a/scripts/headerdep.pl b/scripts/headerdep.pl
index 97399da89ef2..b7f6c560e24d 100755
--- a/scripts/headerdep.pl
+++ b/scripts/headerdep.pl
@@ -19,7 +19,7 @@ my $opt_graph;
         version => \&version,
 
         all     => \$opt_all,
-        I       => \@opt_include,
+        "I=s"   => \@opt_include,
         graph   => \$opt_graph,
 );
 
diff --git a/scripts/kconfig/kxgettext.c b/scripts/kconfig/kxgettext.c
index 6eb72a7f2562..8d9ce22b0fc5 100644
--- a/scripts/kconfig/kxgettext.c
+++ b/scripts/kconfig/kxgettext.c
@@ -43,6 +43,10 @@ static char *escape(const char* text, char *bf, int len)
                         ++text;
                         goto next;
                 }
+                else if (*text == '\\') {
+                        *bfp++ = '\\';
+                        len--;
+                }
                 *bfp++ = *text++;
 next:
                 --len;
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 8cc70612984c..df6e6286a065 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1913,7 +1913,7 @@ static void read_dump(const char *fname, unsigned int kernel)
                 if (!mod) {
                         if (is_vmlinux(modname))
                                 have_vmlinux = 1;
-                        mod = new_module(NOFAIL(strdup(modname)));
+                        mod = new_module(modname);
                         mod->skip = 1;
                 }
                 s = sym_add_exported(symname, mod, export_no(export));
@@ -1997,7 +1997,7 @@ static void read_markers(const char *fname)
 
                 mod = find_module(modname);
                 if (!mod) {
-                        mod = new_module(NOFAIL(strdup(modname)));
+                        mod = new_module(modname);
                         mod->skip = 1;
                 }
                 if (is_vmlinux(modname)) {
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index f1c4b35bc324..47e75b69a2e9 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -21,7 +21,7 @@ if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
 
         # Is this git on svn?
         if git config --get svn-remote.svn.url >/dev/null; then
-                printf -- '-svn%s' "`git-svn find-rev $head`"
+                printf -- '-svn%s' "`git svn find-rev $head`"
         fi
 
         # Are there uncommitted changes?
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index a0affd9cfca8..d4d41b3efc7c 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
@@ -1773,7 +1773,7 @@ void tomoyo_load_policy(const char *filename)
         envp[2] = NULL;
         call_usermodehelper(argv[0], argv, envp, 1);
 
-        printk(KERN_INFO "TOMOYO: 2.2.0-pre   2009/02/01\n");
+        printk(KERN_INFO "TOMOYO: 2.2.0   2009/04/01\n");
         printk(KERN_INFO "Mandatory Access Control activated.\n");
         tomoyo_policy_loaded = true;
         { /* Check all profiles currently assigned to domains are defined. */
@@ -1800,7 +1800,7 @@ void tomoyo_load_policy(const char *filename)
 static int tomoyo_read_version(struct tomoyo_io_buffer *head)
 {
         if (!head->read_eof) {
-                tomoyo_io_printf(head, "2.2.0-pre");
+                tomoyo_io_printf(head, "2.2.0");
                 head->read_eof = true;
         }
         return 0;
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index e77e6a6de0f2..678f4ff16aa4 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 2f2b449ffd2d..2d6748741a26 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 65f50c1c5ee9..2316da8ec5bc 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 3bbe01a7a4b5..bf8e2b451687 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/realpath.h b/security/tomoyo/realpath.h
index 7ec9fc9cbc07..78217a37960b 100644
--- a/security/tomoyo/realpath.h
+++ b/security/tomoyo/realpath.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 3eeeae12c4dc..5b481912752a 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/security/tomoyo/tomoyo.h b/security/tomoyo/tomoyo.h
index a0c8f6e0bea4..41c6ebafb9c5 100644
--- a/security/tomoyo/tomoyo.h
+++ b/security/tomoyo/tomoyo.h
@@ -5,7 +5,7 @@
  *
  * Copyright (C) 2005-2009  NTT DATA CORPORATION
  *
- * Version: 2.2.0-pre   2009/02/01
+ * Version: 2.2.0   2009/04/01
  *
  */
 
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 30829ee920c3..7ba8db5d4c42 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2260,11 +2260,11 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
                 gcap &= ~0x01;
 
         /* allow 64bit DMA address if supported by H/W */
-        if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
-                pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
+        if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
+                pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
         else {
-                pci_set_dma_mask(pci, DMA_32BIT_MASK);
-                pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK);
+                pci_set_dma_mask(pci, DMA_BIT_MASK(32));
+                pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
         }
 
         /* read number of streams from GCAP register instead of using