diff options
| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2010-05-19 23:21:38 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-05-22 14:19:13 -0400 |
| commit | 76b99699a2bbf9efdb578f9a38a202af2ecb354b (patch) | |
| tree | ef7eba05b7b611009d2fb108e58b655550387416 /arch | |
| parent | eb5400b6131e6ebaacf809357643a22a72d5cc4c (diff) | |
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@lab.ntt.co.jp>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | 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 8542bc31f63..93f6c634fdf 100644 --- a/arch/blackfin/include/asm/cache.h +++ b/arch/blackfin/include/asm/cache.h | |||
| @@ -15,6 +15,8 @@ | |||
| 15 | #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) | 15 | #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) |
| 16 | #define SMP_CACHE_BYTES L1_CACHE_BYTES | 16 | #define SMP_CACHE_BYTES L1_CACHE_BYTES |
| 17 | 17 | ||
| 18 | #define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES | ||
| 19 | |||
| 18 | #ifdef CONFIG_SMP | 20 | #ifdef CONFIG_SMP |
| 19 | #define __cacheline_aligned | 21 | #define __cacheline_aligned |
| 20 | #else | 22 | #else |