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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/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 */