1 #ifndef _ASM_SPARC64_DMA_MAPPING_H
2 #define _ASM_SPARC64_DMA_MAPPING_H
4 #include <linux/scatterlist.h>
8 void *(*alloc_coherent
)(struct device
*dev
, size_t size
,
9 dma_addr_t
*dma_handle
, gfp_t flag
);
10 void (*free_coherent
)(struct device
*dev
, size_t size
,
11 void *cpu_addr
, dma_addr_t dma_handle
);
12 dma_addr_t (*map_page
)(struct device
*dev
, struct page
*page
,
13 unsigned long offset
, size_t size
,
14 enum dma_data_direction direction
);
15 void (*unmap_page
)(struct device
*dev
, dma_addr_t dma_addr
,
17 enum dma_data_direction direction
);
18 int (*map_sg
)(struct device
*dev
, struct scatterlist
*sg
, int nents
,
19 enum dma_data_direction direction
);
20 void (*unmap_sg
)(struct device
*dev
, struct scatterlist
*sg
,
22 enum dma_data_direction direction
);
23 void (*sync_single_for_cpu
)(struct device
*dev
,
24 dma_addr_t dma_handle
, size_t size
,
25 enum dma_data_direction direction
);
26 void (*sync_single_for_device
)(struct device
*dev
,
27 dma_addr_t dma_handle
, size_t size
,
28 enum dma_data_direction direction
);
29 void (*sync_sg_for_cpu
)(struct device
*dev
, struct scatterlist
*sg
,
31 enum dma_data_direction direction
);
32 void (*sync_sg_for_device
)(struct device
*dev
,
33 struct scatterlist
*sg
, int nents
,
34 enum dma_data_direction dir
);
36 extern const struct dma_ops
*dma_ops
;
38 static inline void *dma_alloc_coherent(struct device
*dev
, size_t size
,
39 dma_addr_t
*dma_handle
, gfp_t flag
)
41 return dma_ops
->alloc_coherent(dev
, size
, dma_handle
, flag
);
44 static inline void dma_free_coherent(struct device
*dev
, size_t size
,
45 void *cpu_addr
, dma_addr_t dma_handle
)
47 dma_ops
->free_coherent(dev
, size
, cpu_addr
, dma_handle
);
50 static inline dma_addr_t
dma_map_single(struct device
*dev
, void *cpu_addr
,
52 enum dma_data_direction direction
)
54 return dma_ops
->map_page(dev
, virt_to_page(cpu_addr
),
55 (unsigned long)cpu_addr
& ~PAGE_MASK
, size
,
59 static inline void dma_unmap_single(struct device
*dev
, dma_addr_t dma_addr
,
61 enum dma_data_direction direction
)
63 dma_ops
->unmap_page(dev
, dma_addr
, size
, direction
);
66 static inline dma_addr_t
dma_map_page(struct device
*dev
, struct page
*page
,
67 unsigned long offset
, size_t size
,
68 enum dma_data_direction direction
)
70 return dma_ops
->map_page(dev
, page
, offset
, size
, direction
);
73 static inline void dma_unmap_page(struct device
*dev
, dma_addr_t dma_address
,
75 enum dma_data_direction direction
)
77 dma_ops
->unmap_page(dev
, dma_address
, size
, direction
);
80 static inline int dma_map_sg(struct device
*dev
, struct scatterlist
*sg
,
81 int nents
, enum dma_data_direction direction
)
83 return dma_ops
->map_sg(dev
, sg
, nents
, direction
);
86 static inline void dma_unmap_sg(struct device
*dev
, struct scatterlist
*sg
,
87 int nents
, enum dma_data_direction direction
)
89 dma_ops
->unmap_sg(dev
, sg
, nents
, direction
);
92 static inline void dma_sync_single_for_cpu(struct device
*dev
,
93 dma_addr_t dma_handle
, size_t size
,
94 enum dma_data_direction direction
)
96 dma_ops
->sync_single_for_cpu(dev
, dma_handle
, size
, direction
);
99 static inline void dma_sync_single_for_device(struct device
*dev
,
100 dma_addr_t dma_handle
,
102 enum dma_data_direction direction
)
104 /* No flushing needed to sync cpu writes to the device. */
107 static inline void dma_sync_sg_for_cpu(struct device
*dev
,
108 struct scatterlist
*sg
, int nelems
,
109 enum dma_data_direction direction
)
111 dma_ops
->sync_sg_for_cpu(dev
, sg
, nelems
, direction
);
114 static inline void dma_sync_sg_for_device(struct device
*dev
,
115 struct scatterlist
*sg
, int nelems
,
116 enum dma_data_direction direction
)
118 /* No flushing needed to sync cpu writes to the device. */
121 #endif /* _ASM_SPARC64_DMA_MAPPING_H */