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1648993f JR |
1 | #ifndef __LINUX_SWIOTLB_H |
2 | #define __LINUX_SWIOTLB_H | |
3 | ||
4 | #include <linux/types.h> | |
5 | ||
6 | struct device; | |
7 | struct dma_attrs; | |
8 | struct scatterlist; | |
9 | ||
10 | extern void | |
11 | swiotlb_init(void); | |
12 | ||
13 | extern void | |
14 | *swiotlb_alloc_coherent(struct device *hwdev, size_t size, | |
15 | dma_addr_t *dma_handle, gfp_t flags); | |
16 | ||
17 | extern void | |
18 | swiotlb_free_coherent(struct device *hwdev, size_t size, | |
19 | void *vaddr, dma_addr_t dma_handle); | |
20 | ||
21 | extern dma_addr_t | |
22 | swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir); | |
23 | ||
24 | extern void | |
25 | swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, | |
26 | size_t size, int dir); | |
27 | ||
28 | extern dma_addr_t | |
29 | swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size, | |
30 | int dir, struct dma_attrs *attrs); | |
31 | ||
32 | extern void | |
33 | swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr, | |
34 | size_t size, int dir, struct dma_attrs *attrs); | |
35 | ||
36 | extern int | |
37 | swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents, | |
38 | int direction); | |
39 | ||
40 | extern void | |
41 | swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, | |
42 | int direction); | |
43 | ||
44 | extern int | |
45 | swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, | |
46 | int dir, struct dma_attrs *attrs); | |
47 | ||
48 | extern void | |
49 | swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl, | |
50 | int nelems, int dir, struct dma_attrs *attrs); | |
51 | ||
52 | extern void | |
53 | swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, | |
54 | size_t size, int dir); | |
55 | ||
56 | extern void | |
57 | swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, | |
58 | int nelems, int dir); | |
59 | ||
60 | extern void | |
61 | swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr, | |
62 | size_t size, int dir); | |
63 | ||
64 | extern void | |
65 | swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, | |
66 | int nelems, int dir); | |
67 | ||
68 | extern void | |
69 | swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr, | |
70 | unsigned long offset, size_t size, int dir); | |
71 | ||
72 | extern void | |
73 | swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr, | |
74 | unsigned long offset, size_t size, | |
75 | int dir); | |
76 | ||
77 | extern int | |
78 | swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr); | |
79 | ||
80 | extern int | |
81 | swiotlb_dma_supported(struct device *hwdev, u64 mask); | |
82 | ||
83 | #endif /* __LINUX_SWIOTLB_H */ |