From: FUJITA Tomonori <fujita.tomon...@lab.ntt.co.jp> 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.tomon...@lab.ntt.co.jp> Acked-by: Pekka Enberg <penb...@cs.helsinki.fi> Signed-off-by: Mike Frysinger <vap...@gentoo.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 -- 1.7.1 _______________________________________________ Uclinux-dist-devel mailing list Uclinux-dist-devel@blackfin.uclinux.org https://blackfin.uclinux.org/mailman/listinfo/uclinux-dist-devel
