convert the DMA API to use dma_ops

This writes asm/dma-mapping.h to convert the DMA API to use dma_ops.

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, 77 insertions, 36 deletions

diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index eeb2aa36949a..5298f4064e3c 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -65,52 +65,92 @@ extern struct dma_mapping_ops *dma_ops;
 extern struct ia64_machine_vector ia64_mv;
 extern void set_iommu_machvec(void);
 
-#define dma_alloc_coherent(dev, size, handle, gfp)      \
-        platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA)
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+                                       dma_addr_t *daddr, gfp_t gfp)
+{
+        return dma_ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA);
+}
 
-/* coherent mem. is cheap */
-static inline void *
-dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
-                      gfp_t flag)
+static inline void dma_free_coherent(struct device *dev, size_t size,
+                                     void *caddr, dma_addr_t daddr)
 {
-        return dma_alloc_coherent(dev, size, dma_handle, flag);
+        dma_ops->free_coherent(dev, size, caddr, daddr);
 }
-#define dma_free_coherent       platform_dma_free_coherent
-static inline void
-dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
-                     dma_addr_t dma_handle)
+
+#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)
+
+static inline dma_addr_t dma_map_single_attrs(struct device *dev,
+                                              void *caddr, size_t size,
+                                              enum dma_data_direction dir,
+                                              struct dma_attrs *attrs)
+{
+        return dma_ops->map_single_attrs(dev, caddr, size, dir, attrs);
+}
+
+static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
+                                          size_t size,
+                                          enum dma_data_direction dir,
+                                          struct dma_attrs *attrs)
 {
-        dma_free_coherent(dev, size, cpu_addr, dma_handle);
+        dma_ops->unmap_single_attrs(dev, daddr, size, dir, attrs);
 }
-#define dma_map_single_attrs    platform_dma_map_single_attrs
-static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-                                        size_t size, int dir)
+
+#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
+#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
+
+static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
+                                   int nents, enum dma_data_direction dir,
+                                   struct dma_attrs *attrs)
 {
-        return dma_map_single_attrs(dev, cpu_addr, size, dir, NULL);
+        return dma_ops->map_sg_attrs(dev, sgl, nents, dir, attrs);
 }
-#define dma_map_sg_attrs        platform_dma_map_sg_attrs
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sgl,
-                             int nents, int dir)
+
+static inline void dma_unmap_sg_attrs(struct device *dev,
+                                      struct scatterlist *sgl, int nents,
+                                      enum dma_data_direction dir,
+                                      struct dma_attrs *attrs)
 {
-        return dma_map_sg_attrs(dev, sgl, nents, dir, NULL);
+        dma_ops->unmap_sg_attrs(dev, sgl, nents, dir, attrs);
 }
-#define dma_unmap_single_attrs  platform_dma_unmap_single_attrs
-static inline void dma_unmap_single(struct device *dev, dma_addr_t cpu_addr,
-                                    size_t size, int dir)
+
+#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
+#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
+
+static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
+                                           size_t size,
+                                           enum dma_data_direction dir)
 {
-        return dma_unmap_single_attrs(dev, cpu_addr, size, dir, NULL);
+        dma_ops->sync_single_for_cpu(dev, daddr, size, dir);
 }
-#define dma_unmap_sg_attrs      platform_dma_unmap_sg_attrs
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
-                                int nents, int dir)
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+                                       struct scatterlist *sgl,
+                                       int nents, enum dma_data_direction dir)
 {
-        return dma_unmap_sg_attrs(dev, sgl, nents, dir, NULL);
+        dma_ops->sync_sg_for_cpu(dev, sgl, nents, dir);
+}
+
+static inline void dma_sync_single_for_device(struct device *dev,
+                                              dma_addr_t daddr,
+                                              size_t size,
+                                              enum dma_data_direction dir)
+{
+        dma_ops->sync_single_for_device(dev, daddr, size, dir);
+}
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+                                          struct scatterlist *sgl,
+                                          int nents,
+                                          enum dma_data_direction dir)
+{
+        dma_ops->sync_sg_for_device(dev, sgl, nents, dir);
+}
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
+{
+        return dma_ops->mapping_error(dev, daddr);
 }
-#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
-#define dma_sync_sg_for_cpu     platform_dma_sync_sg_for_cpu
-#define dma_sync_single_for_device platform_dma_sync_single_for_device
-#define dma_sync_sg_for_device  platform_dma_sync_sg_for_device
-#define dma_mapping_error       platform_dma_mapping_error
 
 #define dma_map_page(dev, pg, off, size, dir)                           \
         dma_map_single(dev, page_address(pg) + (off), (size), (dir))
@@ -127,7 +167,10 @@ static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
 #define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir)    \
         dma_sync_single_for_device(dev, dma_handle, size, dir)
 
-#define dma_supported           platform_dma_supported
+static inline int dma_supported(struct device *dev, u64 mask)
+{
+        return dma_ops->dma_supported_op(dev, mask);
+}
 
 static inline int
 dma_set_mask (struct device *dev, u64 mask)
@@ -158,6 +201,4 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
         return dma_ops;
 }
 
-
-
 #endif /* _ASM_IA64_DMA_MAPPING_H */