From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 16 Jan 2012 12:53:28 +0100 (CET) Received: from ozlabs.org ([203.10.76.45]:36054 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S1903605Ab2APLwV (ORCPT ); Mon, 16 Jan 2012 12:52:21 +0100 Received: by ozlabs.org (Postfix, from userid 1007) id DE6651007D2; Mon, 16 Jan 2012 22:52:17 +1100 (EST) Date: Mon, 16 Jan 2012 12:57:10 +1100 From: David Gibson To: Marek Szyprowski Cc: linux-kernel@vger.kernel.org, Benjamin Herrenschmidt , Thomas Gleixner , Andrew Morton , Arnd Bergmann , Stephen Rothwell , microblaze-uclinux@itee.uq.edu.au, linux-arch@vger.kernel.org, x86@kernel.org, linux-sh@vger.kernel.org, linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mips@linux-mips.org, discuss@x86-64.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linaro-mm-sig@lists.linaro.org, Jonathan Corbet , Kyungmin Park , Andrzej Pietrasiewicz Subject: Re: [PATCH 01/14] common: dma-mapping: introduce alloc_attrs and free_attrs methods Message-ID: <20120116015710.GD4512@truffala.fritz.box> Mail-Followup-To: David Gibson , Marek Szyprowski , linux-kernel@vger.kernel.org, Benjamin Herrenschmidt , Thomas Gleixner , Andrew Morton , Arnd Bergmann , Stephen Rothwell , microblaze-uclinux@itee.uq.edu.au, linux-arch@vger.kernel.org, x86@kernel.org, linux-sh@vger.kernel.org, linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mips@linux-mips.org, discuss@x86-64.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linaro-mm-sig@lists.linaro.org, Jonathan Corbet , Kyungmin Park , Andrzej Pietrasiewicz References: <1324643253-3024-1-git-send-email-m.szyprowski@samsung.com> <1324643253-3024-2-git-send-email-m.szyprowski@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1324643253-3024-2-git-send-email-m.szyprowski@samsung.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-archive-position: 32246 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: david@gibson.dropbear.id.au Precedence: bulk X-list: linux-mips Return-Path: On Fri, Dec 23, 2011 at 01:27:20PM +0100, Marek Szyprowski wrote: > Introduce new generic alloc and free methods with attributes argument. > > Existing alloc_coherent and free_coherent can be implemented on top of the > new calls with NULL attributes argument. Later also dma_alloc_non_coherent > can be implemented using DMA_ATTR_NONCOHERENT attribute as well as > dma_alloc_writecombine with separate DMA_ATTR_WRITECOMBINE attribute. > > This way the drivers will get more generic, platform independent way of > allocating dma buffers with specific parameters. > > Signed-off-by: Marek Szyprowski > Signed-off-by: Kyungmin Park Looks sensible to me. Reviewed-by: David Gibson -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson