44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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#ifndef _ASM_ARM64_XEN_PAGE_COHERENT_H
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#define _ASM_ARM64_XEN_PAGE_COHERENT_H
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#include <asm/page.h>
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#include <linux/dma-attrs.h>
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#include <linux/dma-mapping.h>
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static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
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dma_addr_t *dma_handle, gfp_t flags,
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struct dma_attrs *attrs)
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{
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return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
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}
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static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
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void *cpu_addr, dma_addr_t dma_handle,
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struct dma_attrs *attrs)
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{
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__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
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}
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static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
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unsigned long offset, size_t size, enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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}
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static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
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size_t size, enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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}
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static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
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dma_addr_t handle, size_t size, enum dma_data_direction dir)
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{
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}
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static inline void xen_dma_sync_single_for_device(struct device *hwdev,
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dma_addr_t handle, size_t size, enum dma_data_direction dir)
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{
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}
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#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */
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