From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757425Ab2BBVd2 (ORCPT ); Thu, 2 Feb 2012 16:33:28 -0500 Received: from mxout1.idt.com ([157.165.5.25]:57271 "EHLO mxout1.idt.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756627Ab2BBVd0 (ORCPT ); Thu, 2 Feb 2012 16:33:26 -0500 From: Alexandre Bounine To: vinod.koul@intel.com, dan.j.williams@intel.com, linux-kernel@vger.kernel.org Cc: Alexandre Bounine , akpm@linux-foundation.org, jaswinder.singh@linaro.org Subject: [PATCH 00/11] dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic Date: Thu, 2 Feb 2012 16:32:10 -0500 Message-Id: <1328218341-31436-1-git-send-email-alexandre.bounine@idt.com> X-Mailer: git-send-email 1.7.8.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As we agreed during our discussion about adding DMA Engine support for RapidIO subsystem [1], RapidIO and similar clients may benefit from adding an extra context parameter to device_prep_slave_sg() and device_prep_dma_cyclic() interfaces. Adding the context parameter will allow to pass client/target specific information associated with an individual data transfer request. In the case of RapidIO support this additional information consists of target destination ID and its buffer address (which is not mapped into the local CPU memory space). Because a single RapidIO-capable DMA channel may queue data transfer requests to different target devices, the per-request configuration is required. This set of patches presents changes to DMA_SLAVE and DMA_CYCLIC interfaces [2] and corresponding changes to all affected current drivers/clients. DMA Engine support for RapidIO and device-specific driver for Tsi721 PCIe-to-SRIO bridge will follow as a separate set of patches. [1] https://lkml.org/lkml/2011/10/24/275 [2] https://lkml.org/lkml/2012/1/30/624 Alexandre Bounine (11): dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic dmaengine/drivers: add context parameter for DMA_SLAVE and DMA_CYCLIC plat-samsung: add context parameter for DMA_SLAVE and DMA_CYCLIC media/video: add new context parameter for DMA_SLAVE calls mmc/host: add context parameter for DMA_SLAVE and DMA_CYCLIC nand/gpmi: add context parameter to prep_slave_sg calls net/ks8842: add context parameter to prep_slave_sg call spi/serial: add context parameter for DMA_SLAVE and DMA_CYCLIC usb/musb: add context parameter to prep_slave_sg call usb/renesas: add context parameter to prep_slave_sg call sound/soc: add context parameter to prep_slave_sg and prep_dma_cyclic calls arch/arm/plat-nomadik/include/plat/ste_dma40.h | 2 +- arch/arm/plat-samsung/dma-ops.c | 5 ++- drivers/dma/amba-pl08x.c | 2 +- drivers/dma/at_hdmac.c | 7 ++++- drivers/dma/coh901318.c | 2 +- drivers/dma/dw_dmac.c | 2 +- drivers/dma/ep93xx_dma.c | 6 +++- drivers/dma/fsldma.c | 4 ++- drivers/dma/imx-dma.c | 5 ++- drivers/dma/imx-sdma.c | 5 ++- drivers/dma/intel_mid_dma.c | 3 +- drivers/dma/ipu/ipu_idmac.c | 3 +- drivers/dma/mxs-dma.c | 5 ++- drivers/dma/pch_dma.c | 3 +- drivers/dma/pl330.c | 5 ++- drivers/dma/shdma.c | 3 +- drivers/dma/sirf-dma.c | 2 +- drivers/dma/ste_dma40.c | 5 ++- drivers/dma/timb_dma.c | 3 +- drivers/dma/txx9dmac.c | 2 +- drivers/media/video/mx3_camera.c | 2 +- drivers/media/video/timblogiw.c | 2 +- drivers/mmc/host/atmel-mci.c | 2 +- drivers/mmc/host/mmci.c | 2 +- drivers/mmc/host/mxcmmc.c | 2 +- drivers/mmc/host/mxs-mmc.c | 2 +- drivers/mmc/host/sh_mmcif.c | 6 +++- drivers/mmc/host/tmio_mmc_dma.c | 4 +- drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 25 ++++++++++++++--------- drivers/net/ethernet/micrel/ks8842.c | 4 +- drivers/spi/spi-dw-mid.c | 6 +++- drivers/spi/spi-ep93xx.c | 3 +- drivers/spi/spi-pl022.c | 6 +++- drivers/spi/spi-topcliff-pch.c | 6 +++- drivers/tty/serial/amba-pl011.c | 6 +++- drivers/tty/serial/pch_uart.c | 5 ++- drivers/tty/serial/sh-sci.c | 4 +- drivers/usb/musb/ux500_dma.c | 3 +- drivers/usb/renesas_usbhs/fifo.c | 3 +- drivers/video/mx3fb.c | 6 +++- include/linux/dmaengine.h | 10 +++++--- sound/soc/ep93xx/ep93xx-pcm.c | 2 +- sound/soc/imx/imx-pcm-dma-mx2.c | 2 +- sound/soc/mxs/mxs-pcm.c | 2 +- sound/soc/sh/siu_pcm.c | 6 +++- sound/soc/txx9/txx9aclc.c | 2 +- 46 files changed, 120 insertions(+), 77 deletions(-) -- 1.7.8.4