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/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __LINUX_SWIOTLB_XEN_H
 3#define __LINUX_SWIOTLB_XEN_H
 4
 5#include <linux/swiotlb.h>
 6#include <asm/xen/swiotlb-xen.h>
 7
 8void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
 9			  size_t size, enum dma_data_direction dir);
10void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
11			     size_t size, enum dma_data_direction dir);
12
13extern const struct dma_map_ops xen_swiotlb_dma_ops;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
14
15#endif /* __LINUX_SWIOTLB_XEN_H */