From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: + dma-mapping-parisc-set-arch_dma_minalign.patch added to -mm tree Date: Thu, 08 Jul 2010 12:53:34 -0700 Message-ID: <201007081953.o68JrYnc025253@imap1.linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:49735 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758557Ab0GHTyS (ORCPT ); Thu, 8 Jul 2010 15:54:18 -0400 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: mm-commits@vger.kernel.org Cc: fujita.tomonori@lab.ntt.co.jp, deller@gmx.de, jejb@parisc-linux.org, kyle@mcmartin.ca, linux-arch@vger.kernel.org The patch titled dma-mapping: parisc: set ARCH_DMA_MINALIGN has been added to the -mm tree. Its filename is dma-mapping-parisc-set-arch_dma_minalign.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: dma-mapping: parisc: set ARCH_DMA_MINALIGN From: FUJITA Tomonori Architectures that handle DMA-non-coherent memory need to set ARCH_DMA_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 Cc: Kyle McMartin Cc: Helge Deller Cc: James E.J. Bottomley Cc: Signed-off-by: Andrew Morton --- arch/parisc/include/asm/cache.h | 2 ++ 1 file changed, 2 insertions(+) diff -puN arch/parisc/include/asm/cache.h~dma-mapping-parisc-set-arch_dma_minalign arch/parisc/include/asm/cache.h --- a/arch/parisc/include/asm/cache.h~dma-mapping-parisc-set-arch_dma_minalign +++ a/arch/parisc/include/asm/cache.h @@ -28,6 +28,8 @@ #define SMP_CACHE_BYTES L1_CACHE_BYTES +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES + #define __read_mostly __attribute__((__section__(".data..read_mostly"))) void parisc_cache_init(void); /* initializes cache-flushing */ _ Patches currently in -mm which might be from fujita.tomonori@lab.ntt.co.jp are linux-next.patch scsi-add-__init-__exit-macros-to-ibmvstgtc.patch dma-mapping-rename-arch_kmalloc_minalign-to-arch_dma_minalign.patch dma-mapping-unify-dma_get_cache_alignment-implementations.patch dma-mapping-parisc-set-arch_dma_minalign.patch