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);
13 xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
14 void *vaddr, dma_addr_t dma_handle);
16 extern 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);
21 extern 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);
26 xen_swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
27 enum dma_data_direction dir);
30 xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
31 enum dma_data_direction dir);
34 xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
35 int nelems, enum dma_data_direction dir,
36 struct dma_attrs *attrs);
39 xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
40 int nelems, enum dma_data_direction dir,
41 struct dma_attrs *attrs);
44 xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
45 size_t size, enum dma_data_direction dir);
48 xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
49 int nelems, enum dma_data_direction dir);
52 xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
53 size_t size, enum dma_data_direction dir);
56 xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
57 int nelems, enum dma_data_direction dir);
60 xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
63 xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
65 #endif /* __LINUX_SWIOTLB_XEN_H */