Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933459Ab0GAVsb (ORCPT ); Thu, 1 Jul 2010 17:48:31 -0400 Received: from kroah.org ([198.145.64.141]:60988 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759039Ab0GAVOE (ORCPT ); Thu, 1 Jul 2010 17:14:04 -0400 X-Mailbox-Line: From gregkh@clark.site Thu Jul 1 10:42:54 2010 Message-Id: <20100701174254.447434482@clark.site> User-Agent: quilt/0.48-10.1 Date: Thu, 01 Jul 2010 10:43:05 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, FUJITA Tomonori , David Howells , Koichi Yasutake , Pekka Enberg Subject: [095/200] mn10300: set ARCH_KMALLOC_MINALIGN In-Reply-To: <20100701175201.GA2149@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1500 Lines: 42 2.6.34-stable review patch. If anyone has any objections, please let me know. ------------------ From: FUJITA Tomonori commit 6cdafaae41d52e6ef9a5c5be23602ef083e4d0f9 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 Acked-by: David Howells Cc: Koichi Yasutake Acked-by: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- arch/mn10300/include/asm/cache.h | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/mn10300/include/asm/cache.h +++ b/arch/mn10300/include/asm/cache.h @@ -21,6 +21,8 @@ #define L1_CACHE_DISPARITY L1_CACHE_NENTRIES * L1_CACHE_BYTES #endif +#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES + /* data cache purge registers * - read from the register to unconditionally purge that cache line * - write address & 0xffffff00 to conditionally purge that cache line -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/