From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: From: Laurent Pinchart To: Niklas =?ISO-8859-1?Q?S=F6derlund?= Cc: linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, iommu@lists.linux-foundation.org, robin.murphy@arm.com, vinod.koul@intel.com, geert+renesas@glider.be, linus.walleij@linaro.org, dan.j.williams@intel.com, arnd@arndb.de, linux-arch@vger.kernel.org Subject: Re: [PATCH v3 2/8] dma-mapping: add {map,unmap}_resource to dma_map_ops Date: Thu, 11 Feb 2016 02:03:40 +0200 Message-ID: <1751306.gvBkWbovht@avalon> In-Reply-To: <1455065878-11906-3-git-send-email-niklas.soderlund+renesas@ragnatech.se> References: <1455065878-11906-1-git-send-email-niklas.soderlund+renesas@ragnatech.se> <1455065878-11906-3-git-send-email-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org List-ID: Hi Niklas, Thank you for the patch. On Wednesday 10 February 2016 01:57:52 Niklas S�derlund wrote: > Add methods to handle mapping of device resources from a physical > address. This is needed for example to map be able to map MMIO FIFO > registers to a IOMMU. > > Signed-off-by: Niklas S�derlund Apart from the typo in the commit message that Sergei already pointed out, Reviewed-by: Laurent Pinchart > --- > include/linux/dma-mapping.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h > index 75857cd..e3aba4e 100644 > --- a/include/linux/dma-mapping.h > +++ b/include/linux/dma-mapping.h > @@ -49,6 +49,12 @@ struct dma_map_ops { > struct scatterlist *sg, int nents, > enum dma_data_direction dir, > struct dma_attrs *attrs); > + dma_addr_t (*map_resource)(struct device *dev, phys_addr_t phys_addr, > + size_t size, enum dma_data_direction dir, > + struct dma_attrs *attrs); > + void (*unmap_resource)(struct device *dev, dma_addr_t dma_handle, > + size_t size, enum dma_data_direction dir, > + struct dma_attrs *attrs); > void (*sync_single_for_cpu)(struct device *dev, > dma_addr_t dma_handle, size_t size, > enum dma_data_direction dir); -- Regards, Laurent Pinchart