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Message-Id: <1274325703-11092-2-git-send-email-fujita.tomonori@lab.ntt.co.jp> Date: Thu, 20 May 2010 12:21:38 +0900 From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp> To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org Cc: davem@...emloft.net, dwmw2@...radead.org, FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>, Mike Frysinger <vapier@...too.org>, stable@...nel.org Subject: [PATCH -mm 1/6] blackfin: 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 <fujita.tomonori@....ntt.co.jp> Cc: Mike Frysinger <vapier@...too.org> Cc: stable@...nel.org --- arch/blackfin/include/asm/cache.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h index 8542bc3..93f6c63 100644 --- a/arch/blackfin/include/asm/cache.h +++ b/arch/blackfin/include/asm/cache.h @@ -15,6 +15,8 @@ #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) #define SMP_CACHE_BYTES L1_CACHE_BYTES +#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES + #ifdef CONFIG_SMP #define __cacheline_aligned #else -- 1.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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