1#ifndef _ASM_ARM_XEN_PAGE_COHERENT_H
 2#define _ASM_ARM_XEN_PAGE_COHERENT_H
 3
 4#include <asm/page.h>
 5#include <linux/dma-attrs.h>
 6#include <linux/dma-mapping.h>
 7
 8static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
 9		dma_addr_t *dma_handle, gfp_t flags,
10		struct dma_attrs *attrs)
11{
12	return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
13}
14
15static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
16		void *cpu_addr, dma_addr_t dma_handle,
17		struct dma_attrs *attrs)
18{
19	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
20}
21
22static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
23	     unsigned long offset, size_t size, enum dma_data_direction dir,
24	     struct dma_attrs *attrs)
25{
26	__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
27}
28
29static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
30		size_t size, enum dma_data_direction dir,
31		struct dma_attrs *attrs)
32{
33	if (__generic_dma_ops(hwdev)->unmap_page)
34		__generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
35}
36
37static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
38		dma_addr_t handle, size_t size, enum dma_data_direction dir)
39{
40	if (__generic_dma_ops(hwdev)->sync_single_for_cpu)
41		__generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
42}
43
44static inline void xen_dma_sync_single_for_device(struct device *hwdev,
45		dma_addr_t handle, size_t size, enum dma_data_direction dir)
46{
47	if (__generic_dma_ops(hwdev)->sync_single_for_device)
48		__generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
49}
50#endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */