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-rw-r--r--arch/ia64/include/asm/dma-mapping.h50
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 @@
7 */ 7 */
8#include <asm/machvec.h> 8#include <asm/machvec.h>
9#include <linux/scatterlist.h> 9#include <linux/scatterlist.h>
10#include <asm/swiotlb.h>
11
12struct dma_mapping_ops {
13 int (*mapping_error)(struct device *dev,
14 dma_addr_t dma_addr);
15 void* (*alloc_coherent)(struct device *dev, size_t size,
16 dma_addr_t *dma_handle, gfp_t gfp);
17 void (*free_coherent)(struct device *dev, size_t size,
18 void *vaddr, dma_addr_t dma_handle);
19 dma_addr_t (*map_single)(struct device *hwdev, unsigned long ptr,
20 size_t size, int direction);
21 void (*unmap_single)(struct device *dev, dma_addr_t addr,
22 size_t size, int direction);
23 void (*sync_single_for_cpu)(struct device *hwdev,
24 dma_addr_t dma_handle, size_t size,
25 int direction);
26 void (*sync_single_for_device)(struct device *hwdev,
27 dma_addr_t dma_handle, size_t size,
28 int direction);
29 void (*sync_single_range_for_cpu)(struct device *hwdev,
30 dma_addr_t dma_handle, unsigned long offset,
31 size_t size, int direction);
32 void (*sync_single_range_for_device)(struct device *hwdev,
33 dma_addr_t dma_handle, unsigned long offset,
34 size_t size, int direction);
35 void (*sync_sg_for_cpu)(struct device *hwdev,
36 struct scatterlist *sg, int nelems,
37 int direction);
38 void (*sync_sg_for_device)(struct device *hwdev,
39 struct scatterlist *sg, int nelems,
40 int direction);
41 int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
42 int nents, int direction);
43 void (*unmap_sg)(struct device *hwdev,
44 struct scatterlist *sg, int nents,
45 int direction);
46 int (*dma_supported_op)(struct device *hwdev, u64 mask);
47 int is_phys;
48};
49
50extern struct dma_mapping_ops *dma_ops;
51extern struct ia64_machine_vector ia64_mv;
52extern void set_iommu_machvec(void);
10 53
11#define dma_alloc_coherent(dev, size, handle, gfp) \ 54#define dma_alloc_coherent(dev, size, handle, gfp) \
12 platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA) 55 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,
96 139
97#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */ 140#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
98 141
142static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
143{
144 return dma_ops;
145}
146
147
148
99#endif /* _ASM_IA64_DMA_MAPPING_H */ 149#endif /* _ASM_IA64_DMA_MAPPING_H */