[patch 075/164] frv: set ARCH_KMALLOC_MINALIGN

[Greg KH]

2.6.33-stable review patch.  If anyone has any objections, please let me know.

------------------

From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>

commit 69dcf3db03626c4f18de624e8632454ea12ff260 upstream.

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@xxxxxxxxxxxxx>
Acked-by: David Howells <dhowells@xxxxxxxxxx>
Acked-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 arch/frv/include/asm/cache.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/frv/include/asm/cache.h
+++ b/arch/frv/include/asm/cache.h
@@ -17,6 +17,8 @@
 #define L1_CACHE_SHIFT		(CONFIG_FRV_L1_CACHE_SHIFT)
 #define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
 
+#define ARCH_KMALLOC_MINALIGN	L1_CACHE_BYTES
+
 #define __cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
 #define ____cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
 


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