tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __LINUX_SWIOTLB_XEN_H
2#define __LINUX_SWIOTLB_XEN_H
3
4#include <linux/swiotlb.h>
5
6extern int xen_swiotlb_init(int verbose, bool early);
7
8extern void
9*xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
10 dma_addr_t *dma_handle, gfp_t flags,
11 struct dma_attrs *attrs);
12
13extern void
14xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
15 void *vaddr, dma_addr_t dma_handle,
16 struct dma_attrs *attrs);
17
18extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
19 unsigned long offset, size_t size,
20 enum dma_data_direction dir,
21 struct dma_attrs *attrs);
22
23extern void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
24 size_t size, enum dma_data_direction dir,
25 struct dma_attrs *attrs);
26extern int
27xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
28 int nelems, enum dma_data_direction dir,
29 struct dma_attrs *attrs);
30
31extern void
32xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
33 int nelems, enum dma_data_direction dir,
34 struct dma_attrs *attrs);
35
36extern void
37xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
38 size_t size, enum dma_data_direction dir);
39
40extern void
41xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
42 int nelems, enum dma_data_direction dir);
43
44extern void
45xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
46 size_t size, enum dma_data_direction dir);
47
48extern void
49xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
50 int nelems, enum dma_data_direction dir);
51
52extern int
53xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
54
55extern int
56xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
57
58#endif /* __LINUX_SWIOTLB_XEN_H */