commit 76b99699a2bbf9efdb578f9a38a202af2ecb354b
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Wed May 19 23:21:38 2010 -0400
committer Mike Frysinger <vapier@gentoo.org> Sat May 22 14:19:13 2010 -0400
tree ef7eba05b7b611009d2fb108e58b655550387416
parent eb5400b6131e6ebaacf809357643a22a72d5cc4c

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>

arch/blackfin/include/asm/cache.h

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