1 files changed, 50 insertions, 0 deletions

diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 06ff1ba21465..bbab7e2b0fc9 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -7,6 +7,49 @@
  */
 #include <asm/machvec.h>
 #include <linux/scatterlist.h>
+#include <asm/swiotlb.h>
+
+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);
+        dma_addr_t      (*map_single)(struct device *hwdev, unsigned long ptr,
+                                size_t size, int direction);
+        void            (*unmap_single)(struct device *dev, dma_addr_t addr,
+                                size_t size, int direction);
+        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);
+        int             (*dma_supported_op)(struct device *hwdev, u64 mask);
+        int             is_phys;
+};
+
+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)
@@ -96,4 +139,11 @@ dma_cache_sync (struct device *dev, void *vaddr, size_t size,
 
 #define dma_is_consistent(d, h) (1)     /* all we do is coherent memory... */
 
+static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
+{
+        return dma_ops;
+}
+
+
+
 #endif /* _ASM_IA64_DMA_MAPPING_H */