1 #ifndef __LINUX_SWIOTLB_XEN_H
2 #define __LINUX_SWIOTLB_XEN_H
4 #include <linux/dma-direction.h>
5 #include <linux/swiotlb.h>
7 extern int xen_swiotlb_init(int verbose, bool early);
10 *xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
11 dma_addr_t *dma_handle, gfp_t flags,
12 struct dma_attrs *attrs);
15 xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
16 void *vaddr, dma_addr_t dma_handle,
17 struct dma_attrs *attrs);
19 extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
20 unsigned long offset, size_t size,
21 enum dma_data_direction dir,
22 struct dma_attrs *attrs);
24 extern void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
25 size_t size, enum dma_data_direction dir,
26 struct dma_attrs *attrs);
28 xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
29 int nelems, enum dma_data_direction dir,
30 struct dma_attrs *attrs);
33 xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
34 int nelems, enum dma_data_direction dir,
35 struct dma_attrs *attrs);
38 xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
39 size_t size, enum dma_data_direction dir);
42 xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
43 int nelems, enum dma_data_direction dir);
46 xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
47 size_t size, enum dma_data_direction dir);
50 xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
51 int nelems, enum dma_data_direction dir);
54 xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
57 xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
60 xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
61 #endif /* __LINUX_SWIOTLB_XEN_H */