projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _M68K_DMA_MAPPING_H |
| 2 | #define _M68K_DMA_MAPPING_H | |
| 3 | ||
| 742636f5 RZ |
4 | #include <asm/cache.h> |
| 5 | ||
| b035c96b | 6 | struct scatterlist; |
| 1da177e4 | 7 | |
| b035c96b RZ |
8 | static inline int dma_supported(struct device *dev, u64 mask) |
| 9 | { | |
| 10 | return 1; | |
| 11 | } | |
| 12 | ||
| 13 | static inline int dma_set_mask(struct device *dev, u64 mask) | |
| 14 | { | |
| 15 | return 0; | |
| 16 | } | |
| 17 | ||
| 742636f5 RZ |
18 | static inline int dma_get_cache_alignment(void) |
| 19 | { | |
| 20 | return 1 << L1_CACHE_SHIFT; | |
| 21 | } | |
| 22 | ||
| 23 | static inline int dma_is_consistent(dma_addr_t dma_addr) | |
| 24 | { | |
| 25 | return 0; | |
| 26 | } | |
| 27 | ||
| b035c96b RZ |
28 | extern void *dma_alloc_coherent(struct device *, size_t, |
| 29 | dma_addr_t *, int); | |
| 30 | extern void dma_free_coherent(struct device *, size_t, | |
| 31 | void *, dma_addr_t); | |
| 32 | ||
| 742636f5 RZ |
33 | static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, |
| 34 | dma_addr_t *handle, int flag) | |
| 35 | { | |
| 36 | return dma_alloc_coherent(dev, size, handle, flag); | |
| 37 | } | |
| 38 | static inline void dma_free_noncoherent(struct device *dev, size_t size, | |
| 39 | void *addr, dma_addr_t handle) | |
| 40 | { | |
| 41 | dma_free_coherent(dev, size, addr, handle); | |
| 42 | } | |
| 43 | static inline void dma_cache_sync(void *vaddr, size_t size, | |
| 44 | enum dma_data_direction dir) | |
| 45 | { | |
| 46 | /* we use coherent allocation, so not much to do here. */ | |
| 47 | } | |
| 48 | ||
| b035c96b RZ |
49 | extern dma_addr_t dma_map_single(struct device *, void *, size_t, |
| 50 | enum dma_data_direction); | |
| 51 | static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, | |
| 52 | size_t size, enum dma_data_direction dir) | |
| 53 | { | |
| 54 | } | |
| 55 | ||
| 56 | extern dma_addr_t dma_map_page(struct device *, struct page *, | |
| 57 | unsigned long, size_t size, | |
| 58 | enum dma_data_direction); | |
| 59 | static inline void dma_unmap_page(struct device *dev, dma_addr_t address, | |
| 60 | size_t size, enum dma_data_direction dir) | |
| 61 | { | |
| 62 | } | |
| 63 | ||
| 64 | extern int dma_map_sg(struct device *, struct scatterlist *, int, | |
| 65 | enum dma_data_direction); | |
| 66 | static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, | |
| 67 | int nhwentries, enum dma_data_direction dir) | |
| 68 | { | |
| 69 | } | |
| 70 | ||
| 71 | extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t, | |
| 72 | enum dma_data_direction); | |
| 73 | extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int, | |
| 74 | enum dma_data_direction); | |
| 75 | ||
| 76 | static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, | |
| 77 | size_t size, enum dma_data_direction dir) | |
| 78 | { | |
| 79 | } | |
| 80 | ||
| 81 | static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, | |
| 82 | int nents, enum dma_data_direction dir) | |
| 83 | { | |
| 84 | } | |
| 85 | ||
| 86 | static inline int dma_mapping_error(dma_addr_t handle) | |
| 87 | { | |
| 88 | return 0; | |
| 89 | } | |
| 1da177e4 LT |
90 | |
| 91 | #endif /* _M68K_DMA_MAPPING_H */ |