diff options
| author | Kevin Hilman <kevin@hilman.org> | 2006-01-12 17:12:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-12 17:12:21 +0100 |
| commit | 37134cd55d57e95d3f606c6f2a57fa496bdad333 (patch) | |
| tree | 0c5c3bb4a52550613eb5f171c5954725b51a1915 /include/asm-arm/memory.h | |
| parent | [ARM] 3252/1: help gcc do the best with ___arch__swab32 (diff) | |
| download | linux-37134cd55d57e95d3f606c6f2a57fa496bdad333.tar.xz linux-37134cd55d57e95d3f606c6f2a57fa496bdad333.zip | |
[ARM] 3209/1: Configurable DMA-consistent memory region
Patch from Kevin Hilman
This patch increase available DMA-consistent memory allocated by dma_coherent_alloc(). The default remains at 2M (defined in asm/memory.h) and each platform has the ability to override in asm/arch-foo/memory.h.
Signed-off-by: Kevin Hilman <kevin@hilman.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/memory.h')
| -rw-r--r-- | include/asm-arm/memory.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h index 3d7f08bd9030..b4e1146ab682 100644 --- a/include/asm-arm/memory.h +++ b/include/asm-arm/memory.h @@ -25,6 +25,7 @@ #include <linux/config.h> #include <linux/compiler.h> #include <asm/arch/memory.h> +#include <asm/sizes.h> #ifndef TASK_SIZE /* @@ -48,6 +49,14 @@ #endif /* + * Size of DMA-consistent memory region. Must be multiple of 2M, + * between 2MB and 14MB inclusive. + */ +#ifndef CONSISTENT_DMA_SIZE +#define CONSISTENT_DMA_SIZE SZ_2M +#endif + +/* * Physical vs virtual RAM address space conversion. These are * private definitions which should NOT be used outside memory.h * files. Use virt_to_phys/phys_to_virt/__pa/__va instead. |