diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 19:06:29 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-12 11:36:49 +0400 |
| commit | 2fb3ec5c9503ba8874e24170de2b40e8f1a58370 (patch) | |
| tree | 9a2b25d2c410bc51e1a1155e7dcaab17f9673716 /arch/arm/include | |
| parent | 78fca1b95837a44983608302e89c7258981be9b3 (diff) | |
| download | linux-2fb3ec5c9503ba8874e24170de2b40e8f1a58370.tar.xz | |
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')
| -rw-r--r-- | arch/arm/include/asm/dma.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/asm/memory.h | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h index ca51143f97f1..42005542932b 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 diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 431077c5a867..ee5ff41027a3 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -209,8 +209,10 @@ static inline unsigned long __phys_to_virt(unsigned long x) * allocations. This must be the smallest DMA mask in the system, * so a successful GFP_DMA allocation will always satisfy this. */ -#ifndef ISA_DMA_THRESHOLD +#ifndef ARM_DMA_ZONE_SIZE #define ISA_DMA_THRESHOLD (0xffffffffULL) +#else +#define ISA_DMA_THRESHOLD (PHYS_OFFSET + ARM_DMA_ZONE_SIZE - 1) #endif #ifndef arch_adjust_zones |