diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 16:06:29 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-12 08:36:49 +0100 |
| commit | 2fb3ec5c9503ba8874e24170de2b40e8f1a58370 (patch) | |
| tree | 9a2b25d2c410bc51e1a1155e7dcaab17f9673716 /arch/arm/include/asm/dma.h | |
| parent | 78fca1b95837a44983608302e89c7258981be9b3 (diff) | |
ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS
The values of ISA_DMA_THRESHOLD and MAX_DMA_ADDRESS are related; one is
the physical/bus address, the other is the virtual address. Both need
to be kept in step, so rather than having platforms define both, allow
them to define a single macro which sets both of these macros
appropraitely.
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/dma.h')
| -rw-r--r-- | arch/arm/include/asm/dma.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h index ca51143f97f..42005542932 100644 --- a/arch/arm/include/asm/dma.h +++ b/arch/arm/include/asm/dma.h @@ -6,8 +6,10 @@ /* * This is the maximum virtual address which can be DMA'd from. */ -#ifndef MAX_DMA_ADDRESS +#ifndef ARM_DMA_ZONE_SIZE #define MAX_DMA_ADDRESS 0xffffffff +#else +#define MAX_DMA_ADDRESS (PAGE_OFFSET + ARM_DMA_ZONE_SIZE) #endif #ifdef CONFIG_ISA_DMA_API |