1#ifndef __LINUX_SWIOTLB_XEN_H
 2#define __LINUX_SWIOTLB_XEN_H
 3
 
 4#include <linux/swiotlb.h>
 5
 6extern void xen_swiotlb_init(int verbose);
 7
 8extern void
 9*xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
10			    dma_addr_t *dma_handle, gfp_t flags);
 
11
12extern void
13xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
14			  void *vaddr, dma_addr_t dma_handle);
 
15
16extern 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);
20
21extern 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);
24/*
25extern int
26xen_swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
27		   enum dma_data_direction dir);
28
29extern void
30xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
31		     enum dma_data_direction dir);
32*/
33extern int
34xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
35			 int nelems, enum dma_data_direction dir,
36			 struct dma_attrs *attrs);
37
38extern void
39xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
40			   int nelems, enum dma_data_direction dir,
41			   struct dma_attrs *attrs);
42
43extern void
44xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
45				size_t size, enum dma_data_direction dir);
46
47extern void
48xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
49			    int nelems, enum dma_data_direction dir);
50
51extern void
52xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
53				   size_t size, enum dma_data_direction dir);
54
55extern void
56xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
57			       int nelems, enum dma_data_direction dir);
58
59extern int
60xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
61
62extern int
63xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
64
 
 
65#endif /* __LINUX_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
 7extern int xen_swiotlb_init(int verbose, bool early);
 8
 9extern 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
14extern void
15xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
16			  void *vaddr, dma_addr_t dma_handle,
17			  struct dma_attrs *attrs);
18
19extern 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
24extern 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);
 
 
 
 
 
 
 
 
 
27extern int
28xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
29			 int nelems, enum dma_data_direction dir,
30			 struct dma_attrs *attrs);
31
32extern void
33xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
34			   int nelems, enum dma_data_direction dir,
35			   struct dma_attrs *attrs);
36
37extern void
38xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
39				size_t size, enum dma_data_direction dir);
40
41extern void
42xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
43			    int nelems, enum dma_data_direction dir);
44
45extern void
46xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
47				   size_t size, enum dma_data_direction dir);
48
49extern void
50xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
51			       int nelems, enum dma_data_direction dir);
52
53extern int
54xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
55
56extern int
57xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
58
59extern int
60xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
61#endif /* __LINUX_SWIOTLB_XEN_H */