Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759438AbYBFDVV (ORCPT ); Tue, 5 Feb 2008 22:21:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756288AbYBFDVL (ORCPT ); Tue, 5 Feb 2008 22:21:11 -0500 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:49248 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756241AbYBFDVK (ORCPT ); Tue, 5 Feb 2008 22:21:10 -0500 From: akepner@sgi.com Date: Tue, 5 Feb 2008 19:19:43 -0800 To: Tony Luck , Jesse Barnes , Jes Sorensen , Randy Dunlap , Roland Dreier , James Bottomley , David Miller Cc: linux-kernel@vger.kernel.org Subject: [PATCH 0/3 v2] dma: dma_{un}map_{single|sg}_attrs() interface Message-ID: <20080206031943.GN9904@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1925 Lines: 63 Introduce a new interface for passing architecture-specific attributes when memory is mapped and unmapped for DMA. Give the interface a default implementation which ignores attributes. Signed-off-by: Arthur Kepner --- dma-mapping.h | 35 +++++++++++++++++++++++++++++++++++ 1 files changed, 35 insertions(+) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 101a2d4..4a49abe 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -116,4 +116,39 @@ static inline void dmam_release_declared_memory(struct device *dev) } #endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */ +#ifndef ARCH_USES_DMA_ATTRS +struct dma_attrs; + +static inline dma_addr_t dma_map_single_attrs(struct device *dev, + void *cpu_addr, size_t size, + enum dma_data_direction dir, + struct dma_attrs* attrs) +{ + return dma_map_single(dev, cpu_addr, size, dir); +} + +static inline void dma_unmap_single_attrs(struct device *dev, + dma_addr_t dma_addr, size_t size, + enum dma_data_direction dir, + struct dma_attrs* attrs) +{ + return dma_unmap_single(dev, dma_addr, size, dir); +} + +static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + return dma_map_sg(dev, sgl, nents, dir); +} + +static inline void dma_unmap_sg_attrs(struct device *dev, + struct scatterlist *sgl, int nents, + enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + return dma_unmap_sg(dev, sgl, nents, dir); +} +#endif /* ARCH_USES_DMA_ATTRS */ + #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/