This patch includes updated kernel config file for loading required
[kvmfornfv.git] / kernel / include / xen / swiotlb-xen.h
1 #ifndef __LINUX_SWIOTLB_XEN_H
2 #define __LINUX_SWIOTLB_XEN_H
3
4 #include <linux/dma-direction.h>
5 #include <linux/swiotlb.h>
6
7 extern int xen_swiotlb_init(int verbose, bool early);
8
9 extern void
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);
13
14 extern void
15 xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
16                           void *vaddr, dma_addr_t dma_handle,
17                           struct dma_attrs *attrs);
18
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);
23
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);
27 extern int
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);
31
32 extern void
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);
36
37 extern void
38 xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
39                                 size_t size, enum dma_data_direction dir);
40
41 extern void
42 xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
43                             int nelems, enum dma_data_direction dir);
44
45 extern void
46 xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
47                                    size_t size, enum dma_data_direction dir);
48
49 extern void
50 xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
51                                int nelems, enum dma_data_direction dir);
52
53 extern int
54 xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
55
56 extern int
57 xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
58
59 extern int
60 xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
61 #endif /* __LINUX_SWIOTLB_XEN_H */