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/plat-omap/include/mach/memory.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/plat-omap/include') diff --git a/arch/arm/plat-omap/include/mach/memory.h b/arch/arm/plat-omap/include/mach/memory.h index 9ad41dc484c1..3325f7b49eaa 100644 --- a/arch/arm/plat-omap/include/mach/memory.h +++ b/arch/arm/plat-omap/include/mach/memory.h @@ -68,6 +68,13 @@ __dma = __dma - PHYS_OFFSET + OMAP1510_LB_OFFSET; \ __dma; }) +#define __arch_dma_to_page(dev, addr) \ + ({ dma_addr_t __dma = addr; \ + if (is_lbus_device(dev)) \ + __dma += PHYS_OFFSET - OMAP1510_LB_OFFSET; \ + phys_to_page(__dma); \ + }) + #define __arch_dma_to_virt(dev, addr) ({ (void *) (is_lbus_device(dev) ? \ lbus_to_virt(addr) : \ __phys_to_virt(addr)); }) -- cgit v1.2.3