21 files changed, 204 insertions, 213 deletions

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index fdb58253fa5b..92673b43858d 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -12,7 +12,7 @@ CFLAGS_prom_init.o      += -fPIC
 CFLAGS_btext.o          += -fPIC
 endif
 
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
 # Do not trace early boot code
 CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
 CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 49248f89ce23..14183af1b3fb 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -30,28 +30,26 @@ static void dma_iommu_free_coherent(struct device *dev, size_t size,
 }
 
 /* Creates TCEs for a user provided buffer.  The user buffer must be
- * contiguous real kernel storage (not vmalloc).  The address of the buffer
- * passed here is the kernel (virtual) address of the buffer.  The buffer
- * need not be page aligned, the dma_addr_t returned will point to the same
- * byte within the page as vaddr.
+ * contiguous real kernel storage (not vmalloc).  The address passed here
+ * comprises a page address and offset into that page. The dma_addr_t
+ * returned will point to the same byte within the page as was passed in.
  */
-static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr,
-                                       size_t size,
-                                       enum dma_data_direction direction,
-                                       struct dma_attrs *attrs)
+static dma_addr_t dma_iommu_map_page(struct device *dev, struct page *page,
+                                     unsigned long offset, size_t size,
+                                     enum dma_data_direction direction,
+                                     struct dma_attrs *attrs)
 {
-        return iommu_map_single(dev, dev->archdata.dma_data, vaddr, size,
-                                device_to_mask(dev), direction, attrs);
+        return iommu_map_page(dev, dev->archdata.dma_data, page, offset, size,
+                              device_to_mask(dev), direction, attrs);
 }
 
 
-static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle,
-                                   size_t size,
-                                   enum dma_data_direction direction,
-                                   struct dma_attrs *attrs)
+static void dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
+                                 size_t size, enum dma_data_direction direction,
+                                 struct dma_attrs *attrs)
 {
-        iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction,
-                           attrs);
+        iommu_unmap_page(dev->archdata.dma_data, dma_handle, size, direction,
+                         attrs);
 }
 
 
@@ -94,10 +92,10 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
 struct dma_mapping_ops dma_iommu_ops = {
         .alloc_coherent = dma_iommu_alloc_coherent,
         .free_coherent  = dma_iommu_free_coherent,
-        .map_single     = dma_iommu_map_single,
-        .unmap_single   = dma_iommu_unmap_single,
         .map_sg         = dma_iommu_map_sg,
         .unmap_sg       = dma_iommu_unmap_sg,
         .dma_supported  = dma_iommu_dma_supported,
+        .map_page       = dma_iommu_map_page,
+        .unmap_page     = dma_iommu_unmap_page,
 };
 EXPORT_SYMBOL(dma_iommu_ops);
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 1cbbf7033641..7ecc0d1855c3 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -1158,7 +1158,7 @@ machine_check_in_rtas:
 
 #endif /* CONFIG_PPC_RTAS */
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
 _GLOBAL(mcount)
 _GLOBAL(_mcount)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index fd8b4bae9b04..e6d52845854f 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -884,7 +884,7 @@ _GLOBAL(enter_prom)
         mtlr    r0
         blr
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
 _GLOBAL(mcount)
 _GLOBAL(_mcount)
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c
index 3855ceb937b0..f4b006ed0ab1 100644
--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c
@@ -28,17 +28,17 @@ static unsigned int ftrace_nop = 0x60000000;
 #endif
 
 
-static unsigned int notrace ftrace_calc_offset(long ip, long addr)
+static unsigned int ftrace_calc_offset(long ip, long addr)
 {
         return (int)(addr - ip);
 }
 
-notrace unsigned char *ftrace_nop_replace(void)
+unsigned char *ftrace_nop_replace(void)
 {
         return (char *)&ftrace_nop;
 }
 
-notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
+unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
 {
         static unsigned int op;
 
@@ -68,7 +68,7 @@ notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
 # define _ASM_PTR       " .long "
 #endif
 
-notrace int
+int
 ftrace_modify_code(unsigned long ip, unsigned char *old_code,
                    unsigned char *new_code)
 {
@@ -113,7 +113,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
         return faulted;
 }
 
-notrace int ftrace_update_ftrace_func(ftrace_func_t func)
+int ftrace_update_ftrace_func(ftrace_func_t func)
 {
         unsigned long ip = (unsigned long)(&ftrace_call);
         unsigned char old[MCOUNT_INSN_SIZE], *new;
@@ -126,23 +126,6 @@ notrace int ftrace_update_ftrace_func(ftrace_func_t func)
         return ret;
 }
 
-notrace int ftrace_mcount_set(unsigned long *data)
-{
-        unsigned long ip = (long)(&mcount_call);
-        unsigned long *addr = data;
-        unsigned char old[MCOUNT_INSN_SIZE], *new;
-
-        /*
-         * Replace the mcount stub with a pointer to the
-         * ip recorder function.
-         */
-        memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
-        new = ftrace_call_replace(ip, *addr);
-        *addr = ftrace_modify_code(ip, old, new);
-
-        return 0;
-}
-
 int __init ftrace_dyn_arch_init(void *data)
 {
         /* This is running in kstop_machine */
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 69489bd3210c..b4bcf5a930fa 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -97,12 +97,6 @@ __secondary_hold_spinloop:
 __secondary_hold_acknowledge:
         .llong  0x0
 
-        /* This flag is set by purgatory if we should be a kdump kernel. */
-        /* Do not move this variable as purgatory knows about it. */
-        .globl  __kdump_flag
-__kdump_flag:
-        .llong  0x0
-
 #ifdef CONFIG_PPC_ISERIES
         /*
          * At offset 0x20, there is a pointer to iSeries LPAR data.
@@ -112,6 +106,20 @@ __kdump_flag:
         .llong hvReleaseData-KERNELBASE
 #endif /* CONFIG_PPC_ISERIES */
 
+#ifdef CONFIG_CRASH_DUMP
+        /* This flag is set to 1 by a loader if the kernel should run
+         * at the loaded address instead of the linked address.  This
+         * is used by kexec-tools to keep the the kdump kernel in the
+         * crash_kernel region.  The loader is responsible for
+         * observing the alignment requirement.
+         */
+        /* Do not move this variable as kexec-tools knows about it. */
+        . = 0x5c
+        .globl  __run_at_load
+__run_at_load:
+        .long   0x72756e30      /* "run0" -- relocate to 0 by default */
+#endif
+
         . = 0x60
 /*
  * The following code is used to hold secondary processors
@@ -1391,8 +1399,8 @@ _STATIC(__after_prom_start)
         lis     r25,PAGE_OFFSET@highest /* compute virtual base of kernel */
         sldi    r25,r25,32
 #ifdef CONFIG_CRASH_DUMP
-        ld      r7,__kdump_flag-_stext(r26)
-        cmpldi  cr0,r7,1        /* kdump kernel ? - stay where we are */
+        lwz     r7,__run_at_load-_stext(r26)
+        cmplwi  cr0,r7,1        /* kdump kernel ? - stay where we are */
         bne     1f
         add     r25,r25,r26
 #endif
@@ -1416,11 +1424,11 @@ _STATIC(__after_prom_start)
 #ifdef CONFIG_CRASH_DUMP
 /*
  * Check if the kernel has to be running as relocatable kernel based on the
- * variable __kdump_flag, if it is set the kernel is treated as relocatable
+ * variable __run_at_load, if it is set the kernel is treated as relocatable
  * kernel, otherwise it will be moved to PHYSICAL_START
  */
-        ld      r7,__kdump_flag-_stext(r26)
-        cmpldi  cr0,r7,1
+        lwz     r7,__run_at_load-_stext(r26)
+        cmplwi  cr0,r7,1
         bne     3f
 
         li      r5,__end_interrupts - _stext    /* just copy interrupts */
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index a06362223f8d..64299d28f364 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -79,20 +79,21 @@ static void ibmebus_free_coherent(struct device *dev,
         kfree(vaddr);
 }
 
-static dma_addr_t ibmebus_map_single(struct device *dev,
-                                     void *ptr,
-                                     size_t size,
-                                     enum dma_data_direction direction,
-                                     struct dma_attrs *attrs)
+static dma_addr_t ibmebus_map_page(struct device *dev,
+                                   struct page *page,
+                                   unsigned long offset,
+                                   size_t size,
+                                   enum dma_data_direction direction,
+                                   struct dma_attrs *attrs)
 {
-        return (dma_addr_t)(ptr);
+        return (dma_addr_t)(page_address(page) + offset);
 }
 
-static void ibmebus_unmap_single(struct device *dev,
-                                 dma_addr_t dma_addr,
-                                 size_t size,
-                                 enum dma_data_direction direction,
-                                 struct dma_attrs *attrs)
+static void ibmebus_unmap_page(struct device *dev,
+                               dma_addr_t dma_addr,
+                               size_t size,
+                               enum dma_data_direction direction,
+                               struct dma_attrs *attrs)
 {
         return;
 }
@@ -129,11 +130,11 @@ static int ibmebus_dma_supported(struct device *dev, u64 mask)
 static struct dma_mapping_ops ibmebus_dma_ops = {
         .alloc_coherent = ibmebus_alloc_coherent,
         .free_coherent  = ibmebus_free_coherent,
-        .map_single     = ibmebus_map_single,
-        .unmap_single   = ibmebus_unmap_single,
         .map_sg         = ibmebus_map_sg,
         .unmap_sg       = ibmebus_unmap_sg,
         .dma_supported  = ibmebus_dma_supported,
+        .map_page       = ibmebus_map_page,
+        .unmap_page     = ibmebus_unmap_page,
 };
 
 static int ibmebus_match_path(struct device *dev, void *data)
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 3857d7e2af0c..1bfa706b96e7 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -32,6 +32,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/bitops.h>
 #include <linux/iommu-helper.h>
+#include <linux/crash_dump.h>
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/iommu.h>
@@ -460,7 +461,7 @@ void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
 
 static void iommu_table_clear(struct iommu_table *tbl)
 {
-        if (!__kdump_flag) {
+        if (!is_kdump_kernel()) {
                 /* Clear the table in case firmware left allocations in it */
                 ppc_md.tce_free(tbl, tbl->it_offset, tbl->it_size);
                 return;
@@ -564,21 +565,23 @@ void iommu_free_table(struct iommu_table *tbl, const char *node_name)
 }
 
 /* Creates TCEs for a user provided buffer.  The user buffer must be
- * contiguous real kernel storage (not vmalloc).  The address of the buffer
- * passed here is the kernel (virtual) address of the buffer.  The buffer
- * need not be page aligned, the dma_addr_t returned will point to the same
- * byte within the page as vaddr.
+ * contiguous real kernel storage (not vmalloc).  The address passed here
+ * comprises a page address and offset into that page. The dma_addr_t
+ * returned will point to the same byte within the page as was passed in.
  */
-dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl,
-                            void *vaddr, size_t size, unsigned long mask,
-                enum dma_data_direction direction, struct dma_attrs *attrs)
+dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl,
+                          struct page *page, unsigned long offset, size_t size,
+                          unsigned long mask, enum dma_data_direction direction,
+                          struct dma_attrs *attrs)
 {
         dma_addr_t dma_handle = DMA_ERROR_CODE;
+        void *vaddr;
         unsigned long uaddr;
         unsigned int npages, align;
 
         BUG_ON(direction == DMA_NONE);
 
+        vaddr = page_address(page) + offset;
         uaddr = (unsigned long)vaddr;
         npages = iommu_num_pages(uaddr, size, IOMMU_PAGE_SIZE);
 
@@ -604,9 +607,9 @@ dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl,
         return dma_handle;
 }
 
-void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle,
-                size_t size, enum dma_data_direction direction,
-                struct dma_attrs *attrs)
+void iommu_unmap_page(struct iommu_table *tbl, dma_addr_t dma_handle,
+                      size_t size, enum dma_data_direction direction,
+                      struct dma_attrs *attrs)
 {
         unsigned int npages;
 
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index e6efec788c4d..3c4ca046e854 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -255,14 +255,11 @@ static union thread_union kexec_stack
 /* Our assembly helper, in kexec_stub.S */
 extern NORET_TYPE void kexec_sequence(void *newstack, unsigned long start,
                                         void *image, void *control,
-                                        void (*clear_all)(void),
-                                        unsigned long kdump_flag) ATTRIB_NORET;
+                                        void (*clear_all)(void)) ATTRIB_NORET;
 
 /* too late to fail here */
 void default_machine_kexec(struct kimage *image)
 {
-        unsigned long kdump_flag = 0;
-
         /* prepare control code if any */
 
         /*
@@ -275,8 +272,6 @@ void default_machine_kexec(struct kimage *image)
 
         if (crashing_cpu == -1)
                 kexec_prepare_cpus();
-        else
-                kdump_flag = KDUMP_SIGNATURE;
 
         /* switch to a staticly allocated stack.  Based on irq stack code.
          * XXX: the task struct will likely be invalid once we do the copy!
@@ -289,7 +284,7 @@ void default_machine_kexec(struct kimage *image)
          */
         kexec_sequence(&kexec_stack, image->start, image,
                         page_address(image->control_code_page),
-                        ppc_md.hpte_clear_all, kdump_flag);
+                        ppc_md.hpte_clear_all);
         /* NOTREACHED */
 }
 
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 6a9b4bf0d173..bdc8b0e860e5 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -470,6 +470,8 @@ _GLOBAL(_tlbil_pid)
         mfspr   r3,SPRN_MMUCSR0
         andi.   r3,r3,MMUCSR0_TLBFI@l
         bne     1b
+        msync
+        isync
         blr
 
 /*
@@ -486,6 +488,8 @@ _GLOBAL(_tlbil_va)
         rlwinm  r4,r4,0,1,31
         mtspr   SPRN_MAS1,r4
         tlbwe
+        msync
+        isync
         blr
 #endif /* CONFIG_FSL_BOOKE */
 
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index a243fd072a77..3053fe5c62f2 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -611,12 +611,10 @@ real_mode:	/* assume normal blr return */
 
 
 /*
- * kexec_sequence(newstack, start, image, control, clear_all(), kdump_flag)
+ * kexec_sequence(newstack, start, image, control, clear_all())
  *
  * does the grungy work with stack switching and real mode switches
  * also does simple calls to other code
- *
- * kdump_flag says whether the next kernel should be a kdump kernel.
  */
 
 _GLOBAL(kexec_sequence)
@@ -649,7 +647,7 @@ _GLOBAL(kexec_sequence)
         mr      r29,r5                  /* image (virt) */
         mr      r28,r6                  /* control, unused */
         mr      r27,r7                  /* clear_all() fn desc */
-        mr      r26,r8                  /* kdump flag */
+        mr      r26,r8                  /* spare */
         lhz     r25,PACAHWCPUID(r13)    /* get our phys cpu from paca */
 
         /* disable interrupts, we are overwriting kernel data next */
@@ -711,6 +709,5 @@ _GLOBAL(kexec_sequence)
         mr      r4,r30  # start, aka phys mem offset
         mtlr    4
         li      r5,0
-        mr      r6,r26                  /* kdump_flag */
-        blr     /* image->start(physid, image->start, 0, kdump_flag); */
+        blr     /* image->start(physid, image->start, 0); */
 #endif /* CONFIG_KEXEC */
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index 93ae5b169f41..f3c9cae01dd5 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -78,7 +78,6 @@ struct of_device *of_device_alloc(struct device_node *np,
         dev->dev.parent = parent;
         dev->dev.release = of_release_dev;
         dev->dev.archdata.of_node = np;
-        set_dev_node(&dev->dev, of_node_to_nid(np));
 
         if (bus_id)
                 strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 1ec73938a00f..f36936d9fda3 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1239,69 +1239,66 @@ static int __init reparent_resources(struct resource *parent,
  *          as well.
  */
 
-static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
+void pcibios_allocate_bus_resources(struct pci_bus *bus)
 {
-        struct pci_bus *bus;
+        struct pci_bus *b;
         int i;
         struct resource *res, *pr;
 
-        /* Depth-First Search on bus tree */
-        list_for_each_entry(bus, bus_list, node) {
-                for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
-                        if ((res = bus->resource[i]) == NULL || !res->flags
-                            || res->start > res->end)
-                                continue;
-                        if (bus->parent == NULL)
-                                pr = (res->flags & IORESOURCE_IO) ?
-                                        &ioport_resource : &iomem_resource;
-                        else {
-                                /* Don't bother with non-root busses when
-                                 * re-assigning all resources. We clear the
-                                 * resource flags as if they were colliding
-                                 * and as such ensure proper re-allocation
-                                 * later.
+        for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
+                if ((res = bus->resource[i]) == NULL || !res->flags
+                    || res->start > res->end)
+                        continue;
+                if (bus->parent == NULL)
+                        pr = (res->flags & IORESOURCE_IO) ?
+                                &ioport_resource : &iomem_resource;
+                else {
+                        /* Don't bother with non-root busses when
+                         * re-assigning all resources. We clear the
+                         * resource flags as if they were colliding
+                         * and as such ensure proper re-allocation
+                         * later.
+                         */
+                        if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)
+                                goto clear_resource;
+                        pr = pci_find_parent_resource(bus->self, res);
+                        if (pr == res) {
+                                /* this happens when the generic PCI
+                                 * code (wrongly) decides that this
+                                 * bridge is transparent  -- paulus
                                  */
-                                if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)
-                                        goto clear_resource;
-                                pr = pci_find_parent_resource(bus->self, res);
-                                if (pr == res) {
-                                        /* this happens when the generic PCI
-                                         * code (wrongly) decides that this
-                                         * bridge is transparent  -- paulus
-                                         */
-                                        continue;
-                                }
+                                continue;
                         }
+                }
 
-                        DBG("PCI: %s (bus %d) bridge rsrc %d: %016llx-%016llx "
-                            "[0x%x], parent %p (%s)\n",
-                            bus->self ? pci_name(bus->self) : "PHB",
-                            bus->number, i,
-                            (unsigned long long)res->start,
-                            (unsigned long long)res->end,
-                            (unsigned int)res->flags,
-                            pr, (pr && pr->name) ? pr->name : "nil");
-
-                        if (pr && !(pr->flags & IORESOURCE_UNSET)) {
-                                if (request_resource(pr, res) == 0)
-                                        continue;
-                                /*
-                                 * Must be a conflict with an existing entry.
-                                 * Move that entry (or entries) under the
-                                 * bridge resource and try again.
-                                 */
-                                if (reparent_resources(pr, res) == 0)
-                                        continue;
-                        }
-                        printk(KERN_WARNING
-                               "PCI: Cannot allocate resource region "
-                               "%d of PCI bridge %d, will remap\n",
-                               i, bus->number);
-clear_resource:
-                        res->flags = 0;
+                DBG("PCI: %s (bus %d) bridge rsrc %d: %016llx-%016llx "
+                    "[0x%x], parent %p (%s)\n",
+                    bus->self ? pci_name(bus->self) : "PHB",
+                    bus->number, i,
+                    (unsigned long long)res->start,
+                    (unsigned long long)res->end,
+                    (unsigned int)res->flags,
+                    pr, (pr && pr->name) ? pr->name : "nil");
+
+                if (pr && !(pr->flags & IORESOURCE_UNSET)) {
+                        if (request_resource(pr, res) == 0)
+                                continue;
+                        /*
+                         * Must be a conflict with an existing entry.
+                         * Move that entry (or entries) under the
+                         * bridge resource and try again.
+                         */
+                        if (reparent_resources(pr, res) == 0)
+                                continue;
                 }
-                pcibios_allocate_bus_resources(&bus->children);
+                printk(KERN_WARNING "PCI: Cannot allocate resource region "
+                       "%d of PCI bridge %d, will remap\n", i, bus->number);
+clear_resource:
+                res->flags = 0;
         }
+
+        list_for_each_entry(b, &bus->children, node)
+                pcibios_allocate_bus_resources(b);
 }
 
 static inline void __devinit alloc_resource(struct pci_dev *dev, int idx)
@@ -1372,10 +1369,13 @@ static void __init pcibios_allocate_resources(int pass)
 
 void __init pcibios_resource_survey(void)
 {
+        struct pci_bus *b;
+
         /* Allocate and assign resources. If we re-assign everything, then
          * we skip the allocate phase
          */
-        pcibios_allocate_bus_resources(&pci_root_buses);
+        list_for_each_entry(b, &pci_root_buses, node)
+                pcibios_allocate_bus_resources(b);
 
         if (!(ppc_pci_flags & PPC_PCI_REASSIGN_ALL_RSRC)) {
                 pcibios_allocate_resources(0);
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 8247cff1cb3e..3502b9101e6b 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -426,7 +426,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
                     pci_name(bus->self));
 
                 __flush_hash_table_range(&init_mm, res->start + _IO_BASE,
-                                         res->end - res->start + 1);
+                                         res->end + _IO_BASE + 1);
                 return 0;
         }
 
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 8edc2359c419..260089dccfb0 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -68,7 +68,7 @@ EXPORT_SYMBOL(single_step_exception);
 EXPORT_SYMBOL(sys_sigreturn);
 #endif
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 EXPORT_SYMBOL(_mcount);
 #endif
 
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 23e0db203329..2445945d3761 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -671,7 +671,7 @@ static struct fake_elf {
                         u32     ignore_me;
                 } rpadesc;
         } rpanote;
-} fake_elf __section(.fakeelf) = {
+} fake_elf = {
         .elfhdr = {
                 .e_ident = { 0x7f, 'E', 'L', 'F',
                              ELFCLASS32, ELFDATA2MSB, EV_CURRENT },
@@ -713,13 +713,13 @@ static struct fake_elf {
                 .type = 0x12759999,
                 .name = "IBM,RPA-Client-Config",
                 .rpadesc = {
-                        .lpar_affinity = 1,
-                        .min_rmo_size = 128,    /* in megabytes */
+                        .lpar_affinity = 0,
+                        .min_rmo_size = 64,     /* in megabytes */
                         .min_rmo_percent = 0,
-                        .max_pft_size = 46,     /* 2^46 bytes max PFT size */
+                        .max_pft_size = 48,     /* 2^48 bytes max PFT size */
                         .splpar = 1,
                         .min_load = ~0U,
-                        .new_mem_def = 1
+                        .new_mem_def = 0
                 }
         }
 };
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 843c0af210d0..169d74cef157 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -444,9 +444,9 @@ void __init setup_system(void)
         if (htab_address)
                 printk("htab_address                  = 0x%p\n", htab_address);
         printk("htab_hash_mask                = 0x%lx\n", htab_hash_mask);
-#if PHYSICAL_START > 0
-        printk("physical_start                = 0x%lx\n", PHYSICAL_START);
-#endif
+        if (PHYSICAL_START > 0)
+                printk("physical_start                = 0x%lx\n",
+                       PHYSICAL_START);
         printk("-----------------------------------------------------\n");
 
         DBG(" <- setup_system()\n");
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 3e80aa32b8b0..b13abf305996 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -410,7 +410,7 @@ inline unsigned long copy_fpr_from_user(struct task_struct *task,
  * altivec/spe instructions at some point.
  */
 static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
-                int sigret)
+                int sigret, int ctx_has_vsx_region)
 {
         unsigned long msr = regs->msr;
 
@@ -451,7 +451,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
          * the saved MSR value to indicate that frame->mc_vregs
          * contains valid data
          */
-        if (current->thread.used_vsr) {
+        if (current->thread.used_vsr && ctx_has_vsx_region) {
                 __giveup_vsx(current);
                 if (copy_vsx_to_user(&frame->mc_vsregs, current))
                         return 1;
@@ -858,11 +858,11 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
         frame = &rt_sf->uc.uc_mcontext;
         addr = frame;
         if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
-                if (save_user_regs(regs, frame, 0))
+                if (save_user_regs(regs, frame, 0, 1))
                         goto badframe;
                 regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp;
         } else {
-                if (save_user_regs(regs, frame, __NR_rt_sigreturn))
+                if (save_user_regs(regs, frame, __NR_rt_sigreturn, 1))
                         goto badframe;
                 regs->link = (unsigned long) frame->tramp;
         }
@@ -936,13 +936,26 @@ long sys_swapcontext(struct ucontext __user *old_ctx,
                      int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
 {
         unsigned char tmp;
+        int ctx_has_vsx_region = 0;
 
 #ifdef CONFIG_PPC64
         unsigned long new_msr = 0;
 
-        if (new_ctx &&
-            __get_user(new_msr, &new_ctx->uc_mcontext.mc_gregs[PT_MSR]))
-                return -EFAULT;
+        if (new_ctx) {
+                struct mcontext __user *mcp;
+                u32 cmcp;
+
+                /*
+                 * Get pointer to the real mcontext.  No need for
+                 * access_ok since we are dealing with compat
+                 * pointers.
+                 */
+                if (__get_user(cmcp, &new_ctx->uc_regs))
+                        return -EFAULT;
+                mcp = (struct mcontext __user *)(u64)cmcp;
+                if (__get_user(new_msr, &mcp->mc_gregs[PT_MSR]))
+                        return -EFAULT;
+        }
         /*
          * Check that the context is not smaller than the original
          * size (with VMX but without VSX)
@@ -956,16 +969,9 @@ long sys_swapcontext(struct ucontext __user *old_ctx,
         if ((ctx_size < sizeof(struct ucontext)) &&
             (new_msr & MSR_VSX))
                 return -EINVAL;
-#ifdef CONFIG_VSX
-        /*
-         * If userspace doesn't provide enough room for VSX data,
-         * but current thread has used VSX, we don't have anywhere
-         * to store the full context back into.
-         */
-        if ((ctx_size < sizeof(struct ucontext)) &&
-            (current->thread.used_vsr && old_ctx))
-                return -EINVAL;
-#endif
+        /* Does the context have enough room to store VSX data? */
+        if (ctx_size >= sizeof(struct ucontext))
+                ctx_has_vsx_region = 1;
 #else
         /* Context size is for future use. Right now, we only make sure
          * we are passed something we understand
@@ -985,17 +991,17 @@ long sys_swapcontext(struct ucontext __user *old_ctx,
                  */
                 mctx = (struct mcontext __user *)
                         ((unsigned long) &old_ctx->uc_mcontext & ~0xfUL);
-                if (!access_ok(VERIFY_WRITE, old_ctx, sizeof(*old_ctx))
-                    || save_user_regs(regs, mctx, 0)
+                if (!access_ok(VERIFY_WRITE, old_ctx, ctx_size)
+                    || save_user_regs(regs, mctx, 0, ctx_has_vsx_region)
                     || put_sigset_t(&old_ctx->uc_sigmask, &current->blocked)
                     || __put_user(to_user_ptr(mctx), &old_ctx->uc_regs))
                         return -EFAULT;
         }
         if (new_ctx == NULL)
                 return 0;
-        if (!access_ok(VERIFY_READ, new_ctx, sizeof(*new_ctx))
+        if (!access_ok(VERIFY_READ, new_ctx, ctx_size)
             || __get_user(tmp, (u8 __user *) new_ctx)
-            || __get_user(tmp, (u8 __user *) (new_ctx + 1) - 1))
+            || __get_user(tmp, (u8 __user *) new_ctx + ctx_size - 1))
                 return -EFAULT;
 
         /*
@@ -1196,11 +1202,11 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
                 goto badframe;
 
         if (vdso32_sigtramp && current->mm->context.vdso_base) {
-                if (save_user_regs(regs, &frame->mctx, 0))
+                if (save_user_regs(regs, &frame->mctx, 0, 1))
                         goto badframe;
                 regs->link = current->mm->context.vdso_base + vdso32_sigtramp;
         } else {
-                if (save_user_regs(regs, &frame->mctx, __NR_sigreturn))
+                if (save_user_regs(regs, &frame->mctx, __NR_sigreturn, 1))
                         goto badframe;
                 regs->link = (unsigned long) frame->mctx.tramp;
         }
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index c6a8f2326b6f..e132891d3cea 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -74,7 +74,8 @@ static const char fmt64[] = KERN_INFO \
  */
 
 static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
-                 int signr, sigset_t *set, unsigned long handler)
+                 int signr, sigset_t *set, unsigned long handler,
+                 int ctx_has_vsx_region)
 {
         /* When CONFIG_ALTIVEC is set, we _always_ setup v_regs even if the
          * process never used altivec yet (MSR_VEC is zero in pt_regs of
@@ -121,7 +122,7 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
          * then out to userspace.  Update v_regs to point after the
          * VMX data.
          */
-        if (current->thread.used_vsr) {
+        if (current->thread.used_vsr && ctx_has_vsx_region) {
                 __giveup_vsx(current);
                 v_regs += ELF_NVRREG;
                 err |= copy_vsx_to_user(v_regs, current);
@@ -282,9 +283,10 @@ int sys_swapcontext(struct ucontext __user *old_ctx,
         unsigned char tmp;
         sigset_t set;
         unsigned long new_msr = 0;
+        int ctx_has_vsx_region = 0;
 
         if (new_ctx &&
-            __get_user(new_msr, &new_ctx->uc_mcontext.gp_regs[PT_MSR]))
+            get_user(new_msr, &new_ctx->uc_mcontext.gp_regs[PT_MSR]))
                 return -EFAULT;
         /*
          * Check that the context is not smaller than the original
@@ -299,28 +301,23 @@ int sys_swapcontext(struct ucontext __user *old_ctx,
         if ((ctx_size < sizeof(struct ucontext)) &&
             (new_msr & MSR_VSX))
                 return -EINVAL;
-#ifdef CONFIG_VSX
-        /*
-         * If userspace doesn't provide enough room for VSX data,
-         * but current thread has used VSX, we don't have anywhere
-         * to store the full context back into.
-         */
-        if ((ctx_size < sizeof(struct ucontext)) &&
-            (current->thread.used_vsr && old_ctx))
-                return -EINVAL;
-#endif
+        /* Does the context have enough room to store VSX data? */
+        if (ctx_size >= sizeof(struct ucontext))
+                ctx_has_vsx_region = 1;
+
         if (old_ctx != NULL) {
-                if (!access_ok(VERIFY_WRITE, old_ctx, sizeof(*old_ctx))
-                    || setup_sigcontext(&old_ctx->uc_mcontext, regs, 0, NULL, 0)
+                if (!access_ok(VERIFY_WRITE, old_ctx, ctx_size)
+                    || setup_sigcontext(&old_ctx->uc_mcontext, regs, 0, NULL, 0,
+                                        ctx_has_vsx_region)
                     || __copy_to_user(&old_ctx->uc_sigmask,
                                       &current->blocked, sizeof(sigset_t)))
                         return -EFAULT;
         }
         if (new_ctx == NULL)
                 return 0;
-        if (!access_ok(VERIFY_READ, new_ctx, sizeof(*new_ctx))
+        if (!access_ok(VERIFY_READ, new_ctx, ctx_size)
             || __get_user(tmp, (u8 __user *) new_ctx)
-            || __get_user(tmp, (u8 __user *) (new_ctx + 1) - 1))
+            || __get_user(tmp, (u8 __user *) new_ctx + ctx_size - 1))
                 return -EFAULT;
 
         /*
@@ -423,7 +420,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
                           &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, signr, NULL,
-                                (unsigned long)ka->sa.sa_handler);
+                                (unsigned long)ka->sa.sa_handler, 1);
         err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
         if (err)
                 goto badframe;
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 434c92a85c03..a11e6bc59b30 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -516,10 +516,10 @@ static void vio_dma_iommu_free_coherent(struct device *dev, size_t size,
         vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
 }
 
-static dma_addr_t vio_dma_iommu_map_single(struct device *dev, void *vaddr,
-                                           size_t size,
-                                           enum dma_data_direction direction,
-                                           struct dma_attrs *attrs)
+static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page,
+                                         unsigned long offset, size_t size,
+                                         enum dma_data_direction direction,
+                                         struct dma_attrs *attrs)
 {
         struct vio_dev *viodev = to_vio_dev(dev);
         dma_addr_t ret = DMA_ERROR_CODE;
@@ -529,7 +529,7 @@ static dma_addr_t vio_dma_iommu_map_single(struct device *dev, void *vaddr,
                 return ret;
         }
 
-        ret = dma_iommu_ops.map_single(dev, vaddr, size, direction, attrs);
+        ret = dma_iommu_ops.map_page(dev, page, offset, size, direction, attrs);
         if (unlikely(dma_mapping_error(dev, ret))) {
                 vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
                 atomic_inc(&viodev->cmo.allocs_failed);
@@ -538,14 +538,14 @@ static dma_addr_t vio_dma_iommu_map_single(struct device *dev, void *vaddr,
         return ret;
 }
 
-static void vio_dma_iommu_unmap_single(struct device *dev,
-                dma_addr_t dma_handle, size_t size,
-                enum dma_data_direction direction,
-                struct dma_attrs *attrs)
+static void vio_dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
+                                     size_t size,
+                                     enum dma_data_direction direction,
+                                     struct dma_attrs *attrs)
 {
         struct vio_dev *viodev = to_vio_dev(dev);
 
-        dma_iommu_ops.unmap_single(dev, dma_handle, size, direction, attrs);
+        dma_iommu_ops.unmap_page(dev, dma_handle, size, direction, attrs);
 
         vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
 }
@@ -603,10 +603,11 @@ static void vio_dma_iommu_unmap_sg(struct device *dev,
 struct dma_mapping_ops vio_dma_mapping_ops = {
         .alloc_coherent = vio_dma_iommu_alloc_coherent,
         .free_coherent  = vio_dma_iommu_free_coherent,
-        .map_single     = vio_dma_iommu_map_single,
-        .unmap_single   = vio_dma_iommu_unmap_single,
         .map_sg         = vio_dma_iommu_map_sg,
         .unmap_sg       = vio_dma_iommu_unmap_sg,
+        .map_page       = vio_dma_iommu_map_page,
+        .unmap_page     = vio_dma_iommu_unmap_page,
+
 };
 
 /**
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index b39c27ed7919..2412c056baa4 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -187,6 +187,7 @@ SECTIONS
                 *(.machine.desc)
                 __machine_desc_end = . ;
         }
+#ifdef CONFIG_RELOCATABLE
         . = ALIGN(8);
         .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) { *(.dynsym) }
         .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
@@ -202,9 +203,7 @@ SECTIONS
                 __rela_dyn_start = .;
                 *(.rela*)
         }
-
-        /* Fake ELF header containing RPA note; for addnote */
-        .fakeelf : AT(ADDR(.fakeelf) - LOAD_OFFSET) { *(.fakeelf) }
+#endif
 
         /* freed after init ends here */
         . = ALIGN(PAGE_SIZE);