diff options
Diffstat (limited to 'include/xen/arm/page-coherent.h')
-rw-r--r-- | include/xen/arm/page-coherent.h | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/include/xen/arm/page-coherent.h b/include/xen/arm/page-coherent.h index a8d9c0678c27..b9cc11e887ed 100644 --- a/include/xen/arm/page-coherent.h +++ b/include/xen/arm/page-coherent.h @@ -5,17 +5,6 @@ #include <linux/dma-mapping.h> #include <asm/page.h> -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); -void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, - size_t size, enum dma_data_direction dir, - unsigned long attrs); -void __xen_dma_sync_single_for_cpu(struct device *hwdev, - dma_addr_t handle, size_t size, enum dma_data_direction dir); -void __xen_dma_sync_single_for_device(struct device *hwdev, - dma_addr_t handle, size_t size, enum dma_data_direction dir); - static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags, unsigned long attrs) { @@ -28,56 +17,4 @@ static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, dma_direct_free(hwdev, size, cpu_addr, dma_handle, 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) -{ - unsigned long pfn = PFN_DOWN(handle); - - if (pfn_valid(pfn)) - dma_direct_sync_single_for_cpu(hwdev, handle, size, dir); - else - __xen_dma_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) -{ - unsigned long pfn = PFN_DOWN(handle); - if (pfn_valid(pfn)) - dma_direct_sync_single_for_device(hwdev, handle, size, dir); - else - __xen_dma_sync_single_for_device(hwdev, handle, size, dir); -} - -static inline 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) -{ - unsigned long pfn = PFN_DOWN(dev_addr); - - /* - * Dom0 is mapped 1:1, and while the Linux page can span across multiple - * Xen pages, it is not possible for it to contain a mix of local and - * foreign Xen pages. Calling pfn_valid on a foreign mfn will always - * return false, so if pfn_valid returns true the pages is local and we - * can use the native dma-direct functions, otherwise we call the Xen - * specific version. - */ - if (pfn_valid(pfn)) - dma_direct_map_page(hwdev, page, offset, size, dir, attrs); - else - __xen_dma_map_page(hwdev, page, dev_addr, 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, unsigned long attrs) -{ - unsigned long pfn = PFN_DOWN(handle); - - if (pfn_valid(pfn)) - dma_direct_unmap_page(hwdev, handle, size, dir, attrs); - else - __xen_dma_unmap_page(hwdev, handle, size, dir, attrs); -} - #endif /* _XEN_ARM_PAGE_COHERENT_H */ |