powerpc/dma: implement new dma_*map*_attrs() interfaces

Update powerpc to use the new dma_*map*_attrs() interfaces. In doing so
update struct dma_mapping_ops to accept a struct dma_attrs and propagate
these changes through to all users of the code (generic IOMMU and the
64bit DMA code, and the iseries and ps3 platform code).

The old dma_*map_*() interfaces are reimplemented as calls to the
corresponding new interfaces.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 22 insertions, 12 deletions

diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c
index 739744508c6e..3ae0c35d21f9 100644
--- a/arch/powerpc/kernel/dma_64.c
+++ b/arch/powerpc/kernel/dma_64.c
@@ -50,32 +50,38 @@ static void dma_iommu_free_coherent(struct device *dev, size_t size,
  */
 static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr,
                                        size_t size,
-                                       enum dma_data_direction direction)
+                                       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);
+                                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)
+                                   enum dma_data_direction direction,
+                                   struct dma_attrs *attrs)
 {
-        iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction);
+        iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction,
+                           attrs);
 }
 
 
 static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
-                            int nelems, enum dma_data_direction direction)
+                            int nelems, enum dma_data_direction direction,
+                            struct dma_attrs *attrs)
 {
         return iommu_map_sg(dev, dev->archdata.dma_data, sglist, nelems,
-                            device_to_mask(dev), direction);
+                            device_to_mask(dev), direction, attrs);
 }
 
 static void dma_iommu_unmap_sg(struct device *dev, struct scatterlist *sglist,
-                int nelems, enum dma_data_direction direction)
+                int nelems, enum dma_data_direction direction,
+                struct dma_attrs *attrs)
 {
-        iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction);
+        iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction,
+                       attrs);
 }
 
 /* We support DMA to/from any memory page via the iommu */
@@ -148,19 +154,22 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
 
 static dma_addr_t dma_direct_map_single(struct device *dev, void *ptr,
                                         size_t size,
-                                        enum dma_data_direction direction)
+                                        enum dma_data_direction direction,
+                                        struct dma_attrs *attrs)
 {
         return virt_to_abs(ptr) + get_dma_direct_offset(dev);
 }
 
 static void dma_direct_unmap_single(struct device *dev, dma_addr_t dma_addr,
                                     size_t size,
-                                    enum dma_data_direction direction)
+                                    enum dma_data_direction direction,
+                                    struct dma_attrs *attrs)
 {
 }
 
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
-                             int nents, enum dma_data_direction direction)
+                             int nents, enum dma_data_direction direction,
+                             struct dma_attrs *attrs)
 {
         struct scatterlist *sg;
         int i;
@@ -174,7 +183,8 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 }
 
 static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
-                                int nents, enum dma_data_direction direction)
+                                int nents, enum dma_data_direction direction,
+                                struct dma_attrs *attrs)
 {
 }