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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/xen/swiotlb-xen.h
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 */