1 #ifndef _ALPHA_DMA_MAPPING_H
2 #define _ALPHA_DMA_MAPPING_H
3
4 #include <linux/dma-attrs.h>
5
6 extern struct dma_map_ops *dma_ops;
7
get_dma_ops(struct device * dev)8 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
9 {
10 return dma_ops;
11 }
12
13 #include <asm-generic/dma-mapping-common.h>
14
15 #define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)
16
dma_alloc_attrs(struct device * dev,size_t size,dma_addr_t * dma_handle,gfp_t gfp,struct dma_attrs * attrs)17 static inline void *dma_alloc_attrs(struct device *dev, size_t size,
18 dma_addr_t *dma_handle, gfp_t gfp,
19 struct dma_attrs *attrs)
20 {
21 return get_dma_ops(dev)->alloc(dev, size, dma_handle, gfp, attrs);
22 }
23
24 #define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
25
dma_free_attrs(struct device * dev,size_t size,void * vaddr,dma_addr_t dma_handle,struct dma_attrs * attrs)26 static inline void dma_free_attrs(struct device *dev, size_t size,
27 void *vaddr, dma_addr_t dma_handle,
28 struct dma_attrs *attrs)
29 {
30 get_dma_ops(dev)->free(dev, size, vaddr, dma_handle, attrs);
31 }
32
dma_mapping_error(struct device * dev,dma_addr_t dma_addr)33 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
34 {
35 return get_dma_ops(dev)->mapping_error(dev, dma_addr);
36 }
37
dma_supported(struct device * dev,u64 mask)38 static inline int dma_supported(struct device *dev, u64 mask)
39 {
40 return get_dma_ops(dev)->dma_supported(dev, mask);
41 }
42
dma_set_mask(struct device * dev,u64 mask)43 static inline int dma_set_mask(struct device *dev, u64 mask)
44 {
45 return get_dma_ops(dev)->set_dma_mask(dev, mask);
46 }
47
48 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
49 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
50
51 #define dma_cache_sync(dev, va, size, dir) ((void)0)
52
53 #endif /* _ALPHA_DMA_MAPPING_H */
54