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