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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2009-10-31 16:07:16 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-11-23 12:53:54 +0000 |
| commit | ef1baed8870d1eebb0c08d9a466e703f1a21b484 (patch) | |
| tree | db1f7d3b5ee8d34e4778bfae66c86ff33e10ca0a /arch/arm/plat-omap | |
| parent | ARM: dma-mapping: simplify page_to_dma() and __pfn_to_bus() (diff) | |
| download | linux-dev-ef1baed8870d1eebb0c08d9a466e703f1a21b484.tar.xz linux-dev-ef1baed8870d1eebb0c08d9a466e703f1a21b484.zip | |
ARM: dma-mapping: provide dma_to_page()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Jamie Iles <jamie@jamieiles.com>
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/include/mach/memory.h | 7 |
1 files changed, 7 insertions, 0 deletions
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)); }) |