From 6cdafaae41d52e6ef9a5c5be23602ef083e4d0f9 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 24 May 2010 14:32:58 -0700 Subject: mn10300: set ARCH_KMALLOC_MINALIGN Architectures that handle DMA-non-coherent memory need to set ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the buffer doesn't share a cache with the others. Signed-off-by: FUJITA Tomonori Acked-by: David Howells Cc: Koichi Yasutake Acked-by: Pekka Enberg Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/mn10300/include/asm/cache.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/mn10300/include') diff --git a/arch/mn10300/include/asm/cache.h b/arch/mn10300/include/asm/cache.h index e03cfa2..6e2fe28 100644 --- a/arch/mn10300/include/asm/cache.h +++ b/arch/mn10300/include/asm/cache.h @@ -21,6 +21,8 @@ #define L1_CACHE_DISPARITY L1_CACHE_NENTRIES * L1_CACHE_BYTES #endif +#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES + /* data cache purge registers * - read from the register to unconditionally purge that cache line * - write address & 0xffffff00 to conditionally purge that cache line -- cgit v1.1