From ef1baed8870d1eebb0c08d9a466e703f1a21b484 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 31 Oct 2009 16:07:16 +0000 Subject: ARM: dma-mapping: provide dma_to_page() Signed-off-by: Russell King Tested-By: Jamie Iles --- arch/arm/include/asm/dma-mapping.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'arch/arm/include/asm/dma-mapping.h') diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 5d78eb163953..f06d80c22748 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -20,6 +20,11 @@ static inline dma_addr_t page_to_dma(struct device *dev, struct page *page) return (dma_addr_t)__pfn_to_bus(page_to_pfn(page)); } +static inline struct page *dma_to_page(struct device *dev, dma_addr_t addr) +{ + return pfn_to_page(__bus_to_pfn(addr)); +} + static inline void *dma_to_virt(struct device *dev, dma_addr_t addr) { return (void *)__bus_to_virt(addr); @@ -35,6 +40,11 @@ static inline dma_addr_t page_to_dma(struct device *dev, struct page *page) return __arch_page_to_dma(dev, page); } +static inline struct page *dma_to_page(struct device *dev, dma_addr_t addr) +{ + return __arch_dma_to_page(dev, addr); +} + static inline void *dma_to_virt(struct device *dev, dma_addr_t addr) { return __arch_dma_to_virt(dev, addr); -- cgit v1.2.3