From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756947Ab1LWM2a (ORCPT ); Fri, 23 Dec 2011 07:28:30 -0500 Received: from mailout2.w1.samsung.com ([210.118.77.12]:53176 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756828Ab1LWM2F (ORCPT ); Fri, 23 Dec 2011 07:28:05 -0500 Date: Fri, 23 Dec 2011 13:27:31 +0100 From: Marek Szyprowski Subject: [PATCH 12/14] common: dma-mapping: introduce mmap method In-reply-to: <1324643253-3024-1-git-send-email-m.szyprowski@samsung.com> To: linux-kernel@vger.kernel.org Cc: Benjamin Herrenschmidt , Thomas Gleixner , Andrew Morton , Arnd Bergmann , Stephen Rothwell , 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 Message-id: <1324643253-3024-13-git-send-email-m.szyprowski@samsung.com> MIME-version: 1.0 X-Mailer: git-send-email 1.7.7.3 Content-type: TEXT/PLAIN Content-transfer-encoding: 7BIT References: <1324643253-3024-1-git-send-email-m.szyprowski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce new generic mmap method with attributes argument. This method lets drivers to create a userspace mapping for a DMA buffer in generic, architecture independent way. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park --- include/linux/dma-mapping.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 2fc413a..b903a20 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -15,6 +15,9 @@ struct dma_map_ops { void (*free)(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs); + int (*mmap)(struct device *, struct vm_area_struct *, + void *, dma_addr_t, size_t, 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