git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a4048a2 GU |
1 | #ifndef _M68K_DMA_MAPPING_H |
| 2 | #define _M68K_DMA_MAPPING_H | |
| 3 | ||
| 4 | #include <asm/cache.h> | |
| 5 | ||
| 6 | struct scatterlist; | |
| 7 | ||
| 8 | #ifndef CONFIG_MMU_SUN3 | |
| 9 | static inline int dma_supported(struct device *dev, u64 mask) | |
| 10 | { | |
| 11 | return 1; | |
| 12 | } | |
| 13 | ||
| 14 | static inline int dma_set_mask(struct device *dev, u64 mask) | |
| 15 | { | |
| 16 | return 0; | |
| 17 | } | |
| 18 | ||
| 9a4048a2 GU |
19 | static inline int dma_is_consistent(struct device *dev, dma_addr_t dma_addr) |
| 20 | { | |
| 21 | return 0; | |
| 22 | } | |
| 23 | ||
| 24 | extern void *dma_alloc_coherent(struct device *, size_t, | |
| 25 | dma_addr_t *, gfp_t); | |
| 26 | extern void dma_free_coherent(struct device *, size_t, | |
| 27 | void *, dma_addr_t); | |
| 28 | ||
| 29 | static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, | |
| 30 | dma_addr_t *handle, gfp_t flag) | |
| 31 | { | |
| 32 | return dma_alloc_coherent(dev, size, handle, flag); | |
| 33 | } | |
| 34 | static inline void dma_free_noncoherent(struct device *dev, size_t size, | |
| 35 | void *addr, dma_addr_t handle) | |
| 36 | { | |
| 37 | dma_free_coherent(dev, size, addr, handle); | |
| 38 | } | |
| 39 | static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, | |
| 40 | enum dma_data_direction dir) | |
| 41 | { | |
| 42 | /* we use coherent allocation, so not much to do here. */ | |
| 43 | } | |
| 44 | ||
| 45 | extern dma_addr_t dma_map_single(struct device *, void *, size_t, | |
| 46 | enum dma_data_direction); | |
| 47 | static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, | |
| 48 | size_t size, enum dma_data_direction dir) | |
| 49 | { | |
| 50 | } | |
| 51 | ||
| 52 | extern dma_addr_t dma_map_page(struct device *, struct page *, | |
| 53 | unsigned long, size_t size, | |
| 54 | enum dma_data_direction); | |
| 55 | static inline void dma_unmap_page(struct device *dev, dma_addr_t address, | |
| 56 | size_t size, enum dma_data_direction dir) | |
| 57 | { | |
| 58 | } | |
| 59 | ||
| 60 | extern int dma_map_sg(struct device *, struct scatterlist *, int, | |
| 61 | enum dma_data_direction); | |
| 62 | static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, | |
| 63 | int nhwentries, enum dma_data_direction dir) | |
| 64 | { | |
| 65 | } | |
| 66 | ||
| 67 | extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t, | |
| 68 | enum dma_data_direction); | |
| 69 | extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int, | |
| 70 | enum dma_data_direction); | |
| 71 | ||
| 72 | static inline void dma_sync_single_range_for_device(struct device *dev, | |
| 73 | dma_addr_t dma_handle, unsigned long offset, size_t size, | |
| 74 | enum dma_data_direction direction) | |
| 75 | { | |
| 76 | /* just sync everything for now */ | |
| 77 | dma_sync_single_for_device(dev, dma_handle, offset + size, direction); | |
| 78 | } | |
| 79 | ||
| 80 | static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, | |
| 81 | size_t size, enum dma_data_direction dir) | |
| 82 | { | |
| 83 | } | |
| 84 | ||
| 85 | static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, | |
| 86 | int nents, enum dma_data_direction dir) | |
| 87 | { | |
| 88 | } | |
| 89 | ||
| 90 | static inline void dma_sync_single_range_for_cpu(struct device *dev, | |
| 91 | dma_addr_t dma_handle, unsigned long offset, size_t size, | |
| 92 | enum dma_data_direction direction) | |
| 93 | { | |
| 94 | /* just sync everything for now */ | |
| 95 | dma_sync_single_for_cpu(dev, dma_handle, offset + size, direction); | |
| 96 | } | |
| 97 | ||
| 98 | static inline int dma_mapping_error(struct device *dev, dma_addr_t handle) | |
| 99 | { | |
| 100 | return 0; | |
| 101 | } | |
| 102 | ||
| 49148020 | 103 | #else |
| 9a4048a2 | 104 | #include <asm-generic/dma-mapping-broken.h> |
| 49148020 | 105 | #endif |
| 9a4048a2 GU |
106 | |
| 107 | #endif /* _M68K_DMA_MAPPING_H */ |