diff options
Diffstat (limited to 'include/xen/arm/page-coherent.h')
| -rw-r--r-- | include/xen/arm/page-coherent.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/include/xen/arm/page-coherent.h b/include/xen/arm/page-coherent.h index 95ce6ac3a971..b1b4ecdf329a 100644 --- a/include/xen/arm/page-coherent.h +++ b/include/xen/arm/page-coherent.h @@ -2,8 +2,16 @@ #define _ASM_ARM_XEN_PAGE_COHERENT_H #include <asm/page.h> +#include <asm/dma-mapping.h> #include <linux/dma-mapping.h> +static inline const struct dma_map_ops *xen_get_dma_ops(struct device *dev) +{ + if (dev && dev->archdata.dev_dma_ops) + return dev->archdata.dev_dma_ops; + return get_arch_dma_ops(NULL); +} + void __xen_dma_map_page(struct device *hwdev, struct page *page, dma_addr_t dev_addr, unsigned long offset, size_t size, enum dma_data_direction dir, unsigned long attrs); @@ -19,13 +27,13 @@ void __xen_dma_sync_single_for_device(struct device *hwdev, static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags, unsigned long attrs) { - return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs); + return xen_get_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, unsigned long attrs) { - __generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs); + xen_get_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs); } static inline void xen_dma_map_page(struct device *hwdev, struct page *page, @@ -49,7 +57,7 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page, * specific function. */ if (local) - __generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs); + xen_get_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs); else __xen_dma_map_page(hwdev, page, dev_addr, offset, size, dir, attrs); } @@ -67,8 +75,8 @@ static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, * specific function. */ if (pfn_valid(pfn)) { - if (__generic_dma_ops(hwdev)->unmap_page) - __generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs); + if (xen_get_dma_ops(hwdev)->unmap_page) + xen_get_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs); } else __xen_dma_unmap_page(hwdev, handle, size, dir, attrs); } @@ -78,8 +86,8 @@ static inline void xen_dma_sync_single_for_cpu(struct device *hwdev, { unsigned long pfn = PFN_DOWN(handle); if (pfn_valid(pfn)) { - if (__generic_dma_ops(hwdev)->sync_single_for_cpu) - __generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir); + if (xen_get_dma_ops(hwdev)->sync_single_for_cpu) + xen_get_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir); } else __xen_dma_sync_single_for_cpu(hwdev, handle, size, dir); } @@ -89,8 +97,8 @@ static inline void xen_dma_sync_single_for_device(struct device *hwdev, { unsigned long pfn = PFN_DOWN(handle); if (pfn_valid(pfn)) { - if (__generic_dma_ops(hwdev)->sync_single_for_device) - __generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir); + if (xen_get_dma_ops(hwdev)->sync_single_for_device) + xen_get_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir); } else __xen_dma_sync_single_for_device(hwdev, handle, size, dir); } |