1 #ifndef __LINUX_SWIOTLB_XEN_H
2 #define __LINUX_SWIOTLB_XEN_H
4 #include <linux/dma-direction.h>
5 #include <linux/scatterlist.h>
6 #include <linux/swiotlb.h>
8 extern int xen_swiotlb_init(int verbose, bool early);
11 *xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
12 dma_addr_t *dma_handle, gfp_t flags,
16 xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
17 void *vaddr, dma_addr_t dma_handle,
20 extern 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,
25 extern void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
26 size_t size, enum dma_data_direction dir,
29 xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
30 int nelems, enum dma_data_direction dir,
34 xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
35 int nelems, enum dma_data_direction dir,
39 xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
40 size_t size, enum dma_data_direction dir);
43 xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
44 int nelems, enum dma_data_direction dir);
47 xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
48 size_t size, enum dma_data_direction dir);
51 xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
52 int nelems, enum dma_data_direction dir);
55 xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
58 xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
61 xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
62 void *cpu_addr, dma_addr_t dma_addr, size_t size,
66 xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
67 void *cpu_addr, dma_addr_t handle, size_t size,
69 #endif /* __LINUX_SWIOTLB_XEN_H */