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Konrad Rzeszutek Wilkb0971862010-05-11 10:05:49 -04001#ifndef __LINUX_SWIOTLB_XEN_H
2#define __LINUX_SWIOTLB_XEN_H
3
4#include <linux/swiotlb.h>
5
6extern void xen_swiotlb_init(int verbose);
7
8extern void
9*xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
10 dma_addr_t *dma_handle, gfp_t flags);
11
12extern void
13xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
14 void *vaddr, dma_addr_t dma_handle);
15
16extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
17 unsigned long offset, size_t size,
18 enum dma_data_direction dir,
19 struct dma_attrs *attrs);
20
21extern void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
22 size_t size, enum dma_data_direction dir,
23 struct dma_attrs *attrs);
24/*
25extern int
26xen_swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
27 enum dma_data_direction dir);
28
29extern void
30xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
31 enum dma_data_direction dir);
32*/
33extern int
34xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
35 int nelems, enum dma_data_direction dir,
36 struct dma_attrs *attrs);
37
38extern void
39xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
40 int nelems, enum dma_data_direction dir,
41 struct dma_attrs *attrs);
42
43extern void
44xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
45 size_t size, enum dma_data_direction dir);
46
47extern void
48xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
49 int nelems, enum dma_data_direction dir);
50
51extern void
52xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
53 size_t size, enum dma_data_direction dir);
54
55extern void
56xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
57 int nelems, enum dma_data_direction dir);
58
59extern int
60xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
61
62extern int
63xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
64
65#endif /* __LINUX_SWIOTLB_XEN_H */