diff options
Diffstat (limited to 'arch/arm64/include/asm/xen/page-coherent.h')
-rw-r--r-- | arch/arm64/include/asm/xen/page-coherent.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h new file mode 100644 index 0000000..2820f1a --- /dev/null +++ b/arch/arm64/include/asm/xen/page-coherent.h @@ -0,0 +1,47 @@ +#ifndef _ASM_ARM64_XEN_PAGE_COHERENT_H +#define _ASM_ARM64_XEN_PAGE_COHERENT_H + +#include <asm/page.h> +#include <linux/dma-attrs.h> +#include <linux/dma-mapping.h> + +static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) +{ + return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs); +} + +static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) +{ + __generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs); +} + +static inline void xen_dma_map_page(struct device *hwdev, struct page *page, + unsigned long offset, size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + __generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs); +} + +static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + __generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs); +} + +static inline void xen_dma_sync_single_for_cpu(struct device *hwdev, + dma_addr_t handle, size_t size, enum dma_data_direction dir) +{ + __generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir); +} + +static inline void xen_dma_sync_single_for_device(struct device *hwdev, + dma_addr_t handle, size_t size, enum dma_data_direction dir) +{ + __generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir); +} +#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */ |