x86, ia64: convert to use generic dma_map_ops struct

This converts X86 and IA64 to use include/linux/dma-mapping.h.

It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 53 insertions, 93 deletions

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index b81f82268a16..5a347805a6c7 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -17,50 +17,9 @@ extern int iommu_merge;
 extern struct device x86_dma_fallback_dev;
 extern int panic_on_overflow;
 
-struct dma_mapping_ops {
-        int             (*mapping_error)(struct device *dev,
-                                         dma_addr_t dma_addr);
-        void*           (*alloc_coherent)(struct device *dev, size_t size,
-                                dma_addr_t *dma_handle, gfp_t gfp);
-        void            (*free_coherent)(struct device *dev, size_t size,
-                                void *vaddr, dma_addr_t dma_handle);
-        void            (*sync_single_for_cpu)(struct device *hwdev,
-                                dma_addr_t dma_handle, size_t size,
-                                int direction);
-        void            (*sync_single_for_device)(struct device *hwdev,
-                                dma_addr_t dma_handle, size_t size,
-                                int direction);
-        void            (*sync_single_range_for_cpu)(struct device *hwdev,
-                                dma_addr_t dma_handle, unsigned long offset,
-                                size_t size, int direction);
-        void            (*sync_single_range_for_device)(struct device *hwdev,
-                                dma_addr_t dma_handle, unsigned long offset,
-                                size_t size, int direction);
-        void            (*sync_sg_for_cpu)(struct device *hwdev,
-                                struct scatterlist *sg, int nelems,
-                                int direction);
-        void            (*sync_sg_for_device)(struct device *hwdev,
-                                struct scatterlist *sg, int nelems,
-                                int direction);
-        int             (*map_sg)(struct device *hwdev, struct scatterlist *sg,
-                                int nents, int direction);
-        void            (*unmap_sg)(struct device *hwdev,
-                                struct scatterlist *sg, int nents,
-                                int direction);
-        dma_addr_t      (*map_page)(struct device *dev, struct page *page,
-                                    unsigned long offset, size_t size,
-                                    enum dma_data_direction dir,
-                                    struct dma_attrs *attrs);
-        void            (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
-                                      size_t size, enum dma_data_direction dir,
-                                      struct dma_attrs *attrs);
-        int             (*dma_supported)(struct device *hwdev, u64 mask);
-        int             is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
-
-static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
+extern struct dma_map_ops *dma_ops;
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 #ifdef CONFIG_X86_32
         return dma_ops;
@@ -75,7 +34,7 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
 /* Make sure we keep the same behaviour */
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(dev);
+        struct dma_map_ops *ops = get_dma_ops(dev);
         if (ops->mapping_error)
                 return ops->mapping_error(dev, dma_addr);
 
@@ -94,138 +53,139 @@ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 
 static inline dma_addr_t
 dma_map_single(struct device *hwdev, void *ptr, size_t size,
-               int direction)
+               enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         return ops->map_page(hwdev, virt_to_page(ptr),
                              (unsigned long)ptr & ~PAGE_MASK, size,
-                             direction, NULL);
+                             dir, NULL);
 }
 
 static inline void
 dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
-                 int direction)
+                 enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(dev);
+        struct dma_map_ops *ops = get_dma_ops(dev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->unmap_page)
-                ops->unmap_page(dev, addr, size, direction, NULL);
+                ops->unmap_page(dev, addr, size, dir, NULL);
 }
 
 static inline int
 dma_map_sg(struct device *hwdev, struct scatterlist *sg,
-           int nents, int direction)
+           int nents, enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
-        return ops->map_sg(hwdev, sg, nents, direction);
+        BUG_ON(!valid_dma_direction(dir));
+        return ops->map_sg(hwdev, sg, nents, dir, NULL);
 }
 
 static inline void
 dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
-             int direction)
+             enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->unmap_sg)
-                ops->unmap_sg(hwdev, sg, nents, direction);
+                ops->unmap_sg(hwdev, sg, nents, dir, NULL);
 }
 
 static inline void
 dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
-                        size_t size, int direction)
+                        size_t size, enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->sync_single_for_cpu)
-                ops->sync_single_for_cpu(hwdev, dma_handle, size, direction);
+                ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
         flush_write_buffers();
 }
 
 static inline void
 dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
-                           size_t size, int direction)
+                           size_t size, enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->sync_single_for_device)
-                ops->sync_single_for_device(hwdev, dma_handle, size, direction);
+                ops->sync_single_for_device(hwdev, dma_handle, size, dir);
         flush_write_buffers();
 }
 
 static inline void
 dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
-                              unsigned long offset, size_t size, int direction)
+                              unsigned long offset, size_t size,
+                              enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->sync_single_range_for_cpu)
                 ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
-                                               size, direction);
+                                               size, dir);
         flush_write_buffers();
 }
 
 static inline void
 dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
                                  unsigned long offset, size_t size,
-                                 int direction)
+                                 enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->sync_single_range_for_device)
                 ops->sync_single_range_for_device(hwdev, dma_handle,
-                                                  offset, size, direction);
+                                                  offset, size, dir);
         flush_write_buffers();
 }
 
 static inline void
 dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
-                    int nelems, int direction)
+                    int nelems, enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->sync_sg_for_cpu)
-                ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
+                ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
         flush_write_buffers();
 }
 
 static inline void
 dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
-                       int nelems, int direction)
+                       int nelems, enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+        struct dma_map_ops *ops = get_dma_ops(hwdev);
 
-        BUG_ON(!valid_dma_direction(direction));
+        BUG_ON(!valid_dma_direction(dir));
         if (ops->sync_sg_for_device)
-                ops->sync_sg_for_device(hwdev, sg, nelems, direction);
+                ops->sync_sg_for_device(hwdev, sg, nelems, dir);
 
         flush_write_buffers();
 }
 
 static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
                                       size_t offset, size_t size,
-                                      int direction)
+                                      enum dma_data_direction dir)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(dev);
+        struct dma_map_ops *ops = get_dma_ops(dev);
 
-        BUG_ON(!valid_dma_direction(direction));
-        return ops->map_page(dev, page, offset, size, direction, NULL);
+        BUG_ON(!valid_dma_direction(dir));
+        return ops->map_page(dev, page, offset, size, dir, NULL);
 }
 
 static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
-                                  size_t size, int direction)
+                                  size_t size, enum dma_data_direction dir)
 {
-        dma_unmap_single(dev, addr, size, direction);
+        dma_unmap_single(dev, addr, size, dir);
 }
 
 static inline void
@@ -271,7 +231,7 @@ static inline void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
                 gfp_t gfp)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(dev);
+        struct dma_map_ops *ops = get_dma_ops(dev);
         void *memory;
 
         gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -297,7 +257,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
 static inline void dma_free_coherent(struct device *dev, size_t size,
                                      void *vaddr, dma_addr_t bus)
 {
-        struct dma_mapping_ops *ops = get_dma_ops(dev);
+        struct dma_map_ops *ops = get_dma_ops(dev);
 
         WARN_ON(irqs_disabled());       /* for portability */