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/dma-direction.h>
5#include <linux/scatterlist.h>
6#include <linux/swiotlb.h>
7
8extern int xen_swiotlb_init(int verbose, bool early);
9
10extern void
11*xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
12 dma_addr_t *dma_handle, gfp_t flags,
13 unsigned long attrs);
14
15extern void
16xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
17 void *vaddr, dma_addr_t dma_handle,
18 unsigned long attrs);
19
20extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
21 unsigned long offset, size_t size,
22 enum dma_data_direction dir,
23 unsigned long attrs);
24
25extern void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
26 size_t size, enum dma_data_direction dir,
27 unsigned long attrs);
28extern int
29xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
30 int nelems, enum dma_data_direction dir,
31 unsigned long attrs);
32
33extern void
34xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
35 int nelems, enum dma_data_direction dir,
36 unsigned long attrs);
37
38extern void
39xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
40 size_t size, enum dma_data_direction dir);
41
42extern void
43xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
44 int nelems, enum dma_data_direction dir);
45
46extern void
47xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
48 size_t size, enum dma_data_direction dir);
49
50extern void
51xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
52 int nelems, enum dma_data_direction dir);
53
54extern int
55xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
56
57extern int
58xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
59
60extern int
61xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
62 void *cpu_addr, dma_addr_t dma_addr, size_t size,
63 unsigned long attrs);
64
65extern int
66xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
67 void *cpu_addr, dma_addr_t handle, size_t size,
68 unsigned long attrs);
69#endif /* __LINUX_SWIOTLB_XEN_H */