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Diffstat (limited to 'arch/arm64/include/asm/xen/page-coherent.h')
-rw-r--r--arch/arm64/include/asm/xen/page-coherent.h44
1 files changed, 1 insertions, 43 deletions
diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h
index d7cd4c2b2fd2..2052102b4e02 100644
--- a/arch/arm64/include/asm/xen/page-coherent.h
+++ b/arch/arm64/include/asm/xen/page-coherent.h
@@ -1,43 +1 @@
1#ifndef _ASM_ARM64_XEN_PAGE_COHERENT_H #include <../../arm/include/asm/xen/page-coherent.h>
2#define _ASM_ARM64_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 dma_addr_t dev_addr, unsigned long offset, size_t size,
24 enum dma_data_direction dir, struct dma_attrs *attrs)
25{
26}
27
28static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
29 size_t size, enum dma_data_direction dir,
30 struct dma_attrs *attrs)
31{
32}
33
34static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
35 dma_addr_t handle, size_t size, enum dma_data_direction dir)
36{
37}
38
39static inline void xen_dma_sync_single_for_device(struct device *hwdev,
40 dma_addr_t handle, size_t size, enum dma_data_direction dir)
41{
42}
43#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */