From 9eedd96301cad8ab58ee8c1e579677d0a75c2ba1 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 3 Jan 2011 00:00:17 +0000 Subject: ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn() Replace the page_to_dma() and dma_to_page() macros with their PFN equivalents. This allows us to map parts of memory which do not have a struct page allocated to them to bus addresses. This will be used internally by dma_alloc_coherent()/dma_alloc_writecombine(). Build tested on Versatile, OMAP1, IOP13xx and KS8695. Tested-by: Janusz Krzysztofik Signed-off-by: Russell King --- arch/arm/mm/dma-mapping.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mm') diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index e4dd0646e85..44e72108d7a 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -311,7 +311,7 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, addr = page_address(page); if (addr) - *handle = page_to_dma(dev, page); + *handle = pfn_to_dma(dev, page_to_pfn(page)); return addr; } @@ -406,7 +406,7 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr if (!arch_is_coherent()) __dma_free_remap(cpu_addr, size); - __dma_free_buffer(dma_to_page(dev, handle), size); + __dma_free_buffer(pfn_to_page(dma_to_pfn(dev, handle)), size); } EXPORT_SYMBOL(dma_free_coherent); -- cgit v1.2.3