1 #ifndef __LINUX_SWIOTLB_XEN_H
2 #define __LINUX_SWIOTLB_XEN_H
4 #include <linux/swiotlb.h>
6 extern void xen_swiotlb_init(int verbose);
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);
14 xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
15 void *vaddr, dma_addr_t dma_handle,
16 struct dma_attrs *attrs);
18 extern 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);
23 extern 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);
28 xen_swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
29 enum dma_data_direction dir);
32 xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
33 enum dma_data_direction dir);
36 xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
37 int nelems, enum dma_data_direction dir,
38 struct dma_attrs *attrs);
41 xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
42 int nelems, enum dma_data_direction dir,
43 struct dma_attrs *attrs);
46 xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
47 size_t size, enum dma_data_direction dir);
50 xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
51 int nelems, enum dma_data_direction dir);
54 xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
55 size_t size, enum dma_data_direction dir);
58 xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
59 int nelems, enum dma_data_direction dir);
62 xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
65 xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
67 #endif /* __LINUX_SWIOTLB_XEN_H */