Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (23 commits)
  Revert "powerpc: Sync RPA note in zImage with kernel's RPA note"
  powerpc: Fix compile errors with CONFIG_BUG=n
  powerpc: Fix format string warning in arch/powerpc/boot/main.c
  powerpc: Fix bug in kernel copy of libfdt's fdt_subnode_offset_namelen()
  powerpc: Remove duplicate DMA entry from mpc8313erdb device tree
  powerpc/cell/OProfile: Fix on-stack array size in activate spu profiling function
  powerpc/mpic: Fix regression caused by change of default IRQ affinity
  powerpc: Update remaining dma_mapping_ops to use map/unmap_page
  powerpc/pci: Fix unmapping of IO space on 64-bit
  powerpc/pci: Properly allocate bus resources for hotplug PHBs
  OF-device: Don't overwrite numa_node in device registration
  powerpc: Fix swapcontext system for VSX + old ucontext size
  powerpc: Fix compiler warning for the relocatable kernel
  powerpc: Work around ld bug in older binutils
  powerpc/ppc64/kdump: Better flag for running relocatable
  powerpc: Use is_kdump_kernel()
  powerpc: Kexec exit should not use magic numbers
  powerpc/44x: Update 44x defconfigs
  powerpc/40x: Update 40x defconfigs
  powerpc: enable heap randomization for linkstations
  ...

1 files changed, 19 insertions, 17 deletions

diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index a789bf58ca8..661e9f77ebf 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -555,18 +555,19 @@ static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
 }
 
 /* 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 ps3_sb_map_single(struct device *_dev, void *ptr, size_t size,
-	enum dma_data_direction direction, struct dma_attrs *attrs)
+static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page,
+	unsigned long offset, size_t size, enum dma_data_direction direction,
+	struct dma_attrs *attrs)
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
 	int result;
 	unsigned long bus_addr;
+	void *ptr = page_address(page) + offset;
 
 	result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
 			     &bus_addr,
@@ -580,15 +581,16 @@ static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size,
 	return bus_addr;
 }
 
-static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr,
-				      size_t size,
-				      enum dma_data_direction direction,
-				      struct dma_attrs *attrs)
+static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page,
+				    unsigned long offset, size_t size,
+				    enum dma_data_direction direction,
+				    struct dma_attrs *attrs)
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
 	int result;
 	unsigned long bus_addr;
 	u64 iopte_flag;
+	void *ptr = page_address(page) + offset;
 
 	iopte_flag = IOPTE_M;
 	switch (direction) {
@@ -615,7 +617,7 @@ static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr,
 	return bus_addr;
 }
 
-static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
+static void ps3_unmap_page(struct device *_dev, dma_addr_t dma_addr,
 	size_t size, enum dma_data_direction direction, struct dma_attrs *attrs)
 {
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
@@ -689,21 +691,21 @@ static int ps3_dma_supported(struct device *_dev, u64 mask)
 static struct dma_mapping_ops ps3_sb_dma_ops = {
 	.alloc_coherent = ps3_alloc_coherent,
 	.free_coherent = ps3_free_coherent,
-	.map_single = ps3_sb_map_single,
-	.unmap_single = ps3_unmap_single,
 	.map_sg = ps3_sb_map_sg,
 	.unmap_sg = ps3_sb_unmap_sg,
-	.dma_supported = ps3_dma_supported
+	.dma_supported = ps3_dma_supported,
+	.map_page = ps3_sb_map_page,
+	.unmap_page = ps3_unmap_page,
 };
 
 static struct dma_mapping_ops ps3_ioc0_dma_ops = {
 	.alloc_coherent = ps3_alloc_coherent,
 	.free_coherent = ps3_free_coherent,
-	.map_single = ps3_ioc0_map_single,
-	.unmap_single = ps3_unmap_single,
 	.map_sg = ps3_ioc0_map_sg,
 	.unmap_sg = ps3_ioc0_unmap_sg,
-	.dma_supported = ps3_dma_supported
+	.dma_supported = ps3_dma_supported,
+	.map_page = ps3_ioc0_map_page,
+	.unmap_page = ps3_unmap_page,
 };
 
 /**