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Commit | Line | Data |
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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 | |
58ba81db | 8 | #ifndef CONFIG_MMU_SUN3 |
b035c96b RZ |
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 | ||
742636f5 RZ |
19 | static inline int dma_get_cache_alignment(void) |
20 | { | |
21 | return 1 << L1_CACHE_SHIFT; | |
22 | } | |
23 | ||
f67637ee | 24 | static inline int dma_is_consistent(struct device *dev, dma_addr_t dma_addr) |
742636f5 RZ |
25 | { |
26 | return 0; | |
27 | } | |
28 | ||
b035c96b | 29 | extern void *dma_alloc_coherent(struct device *, size_t, |
dc366708 | 30 | dma_addr_t *, gfp_t); |
b035c96b RZ |
31 | extern void dma_free_coherent(struct device *, size_t, |
32 | void *, dma_addr_t); | |
33 | ||
742636f5 | 34 | static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, |
69300436 | 35 | dma_addr_t *handle, gfp_t flag) |
742636f5 RZ |
36 | { |
37 | return dma_alloc_coherent(dev, size, handle, flag); | |
38 | } | |
39 | static inline void dma_free_noncoherent(struct device *dev, size_t size, | |
40 | void *addr, dma_addr_t handle) | |
41 | { | |
42 | dma_free_coherent(dev, size, addr, handle); | |
43 | } | |
d3fa72e4 | 44 | static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
742636f5 RZ |
45 | enum dma_data_direction dir) |
46 | { | |
47 | /* we use coherent allocation, so not much to do here. */ | |
48 | } | |
49 | ||
b035c96b RZ |
50 | extern dma_addr_t dma_map_single(struct device *, void *, size_t, |
51 | enum dma_data_direction); | |
52 | static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, | |
53 | size_t size, enum dma_data_direction dir) | |
54 | { | |
55 | } | |
56 | ||
57 | extern dma_addr_t dma_map_page(struct device *, struct page *, | |
58 | unsigned long, size_t size, | |
59 | enum dma_data_direction); | |
60 | static inline void dma_unmap_page(struct device *dev, dma_addr_t address, | |
61 | size_t size, enum dma_data_direction dir) | |
62 | { | |
63 | } | |
64 | ||
65 | extern int dma_map_sg(struct device *, struct scatterlist *, int, | |
66 | enum dma_data_direction); | |
67 | static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, | |
68 | int nhwentries, enum dma_data_direction dir) | |
69 | { | |
70 | } | |
71 | ||
72 | extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t, | |
73 | enum dma_data_direction); | |
74 | extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int, | |
75 | enum dma_data_direction); | |
76 | ||
77 | static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, | |
78 | size_t size, enum dma_data_direction dir) | |
79 | { | |
80 | } | |
81 | ||
82 | static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, | |
83 | int nents, enum dma_data_direction dir) | |
84 | { | |
85 | } | |
86 | ||
8d8bb39b | 87 | static inline int dma_mapping_error(struct device *dev, dma_addr_t handle) |
b035c96b RZ |
88 | { |
89 | return 0; | |
90 | } | |
1da177e4 | 91 | |
58ba81db AV |
92 | #else |
93 | #include <asm-generic/dma-mapping-broken.h> | |
94 | #endif | |
95 | ||
1da177e4 | 96 | #endif /* _M68K_DMA_MAPPING_H */ |