From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 27 Mar 2012 15:44:07 +0200 (CEST) Received: from mailout2.w1.samsung.com ([210.118.77.12]:24066 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S1903661Ab2C0Nnh (ORCPT ); Tue, 27 Mar 2012 15:43:37 +0200 Received: from euspt2 (mailout2.w1.samsung.com [210.118.77.12]) by mailout2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0M1J00LLYQ48JZ@mailout2.w1.samsung.com> for linux-mips@linux-mips.org; Tue, 27 Mar 2012 14:43:21 +0100 (BST) Received: from linux.samsung.com ([106.116.38.10]) by spt2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0M1J00217Q471V@spt2.w1.samsung.com> for linux-mips@linux-mips.org; Tue, 27 Mar 2012 14:43:20 +0100 (BST) Received: from mcdsrvbld02.digital.local (unknown [106.116.37.23]) by linux.samsung.com (Postfix) with ESMTP id 3280327004B; Tue, 27 Mar 2012 15:46:11 +0200 (CEST) Date: Tue, 27 Mar 2012 15:42:35 +0200 From: Marek Szyprowski Subject: [PATCHv2 01/14] common: dma-mapping: introduce alloc_attrs and free_attrs methods In-reply-to: <1332855768-32583-1-git-send-email-m.szyprowski@samsung.com> To: linux-kernel@vger.kernel.org Cc: Benjamin Herrenschmidt , Thomas Gleixner , Andrew Morton , Arnd Bergmann , Stephen Rothwell , FUJITA Tomonori , 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 , Marek Szyprowski , Kyungmin Park , Andrzej Pietrasiewicz , Kevin Cernekee , Dezhong Diao , Richard Kuo , "David S. Miller" , Michal Simek , Guan Xuetao , Paul Mundt , Richard Henderson , Ivan Kokshaysky , Matt Turner , Tony Luck , Fenghua Yu Message-id: <1332855768-32583-2-git-send-email-m.szyprowski@samsung.com> MIME-version: 1.0 X-Mailer: git-send-email 1.7.9.1 Content-type: TEXT/PLAIN Content-transfer-encoding: 7BIT References: <1332855768-32583-1-git-send-email-m.szyprowski@samsung.com> X-archive-position: 32776 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: m.szyprowski@samsung.com Precedence: bulk X-list: linux-mips Return-Path: 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 Acked-by: Kyungmin Park Reviewed-by: David Gibson Reviewed-by: Arnd Bergmann --- include/linux/dma-mapping.h | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index e13117c..8cc7f95 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -13,6 +13,12 @@ struct dma_map_ops { dma_addr_t *dma_handle, gfp_t gfp); void (*free_coherent)(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle); + void* (*alloc)(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs); + void (*free)(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); dma_addr_t (*map_page)(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, -- 1.7.1.569.g6f426