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GET /api/1.0/patches/2175616/?format=api
{ "id": 2175616, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2175616/?format=api", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/1.0/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20251218-dma_prep_config-v2-4-c07079836128@nxp.com>", "date": "2025-12-18T15:56:24", "name": "[v2,4/8] dmaengine: dw-edma: Pass dma_slave_config to dw_edma_device_transfer()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "0aa20383c598f6b427af2a46de84a9a533e5518f", "submitter": { "id": 68011, "url": "http://patchwork.ozlabs.org/api/1.0/people/68011/?format=api", "name": "Frank Li", "email": "Frank.Li@nxp.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20251218-dma_prep_config-v2-4-c07079836128@nxp.com/mbox/", "series": [ { "id": 485872, "url": "http://patchwork.ozlabs.org/api/1.0/series/485872/?format=api", "date": "2025-12-18T15:56:20", "name": "dmaengine: Add new API to combine onfiguration and descriptor preparation", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/485872/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2175616/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pci+bounces-43314-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256\n header.s=selector1 header.b=lZ2cTqBB;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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dkim=pass\n header.d=nxp.com; arc=none" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=z9uEDHDbfM5rwzcYum9JXHwXqo62a6HbPA/JryHN9dY=;\n b=lZ2cTqBBh/Ulv6VPAVILt8CwNvINZZgpRJeFGg0I9NpdZ3LTlO2tHAlzgMeDEvJIZ9vgHtMLssZUZg/D3CFnmzxJyCwADVOqRqI2ZJdQLrl5GwrKKVYSoe71aCmWZ7JcivHfCY7HZJOvY5lPBRgBi2BdTHqig18Rp3ABcRW6DT3RKaFRTXuG3QEdS+jgtxc+ay+FiKQgoeXh+Jh50huPK9mUQBYc4Hf2Z1meijfdMsWDA9NZ6UIf/y2n9G0qQfqUAeKZBURAfeQu3BY5+8NBXbR+Ajo+4ZQkc6HG8A1gbQUJWR4/Q4qs/vCNBkRJtvKJMD85LSfikdHjQJefcR/HMA==", "From": "Frank Li <Frank.Li@nxp.com>", "Date": "Thu, 18 Dec 2025 10:56:24 -0500", "Subject": "[PATCH v2 4/8] dmaengine: dw-edma: Pass dma_slave_config to\n dw_edma_device_transfer()", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20251218-dma_prep_config-v2-4-c07079836128@nxp.com>", "References": "<20251218-dma_prep_config-v2-0-c07079836128@nxp.com>", "In-Reply-To": "<20251218-dma_prep_config-v2-0-c07079836128@nxp.com>", "To": "Vinod Koul <vkoul@kernel.org>, Manivannan Sadhasivam <mani@kernel.org>,\n\t=?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kwilczynski@kernel.org>,\n Kishon Vijay Abraham I <kishon@kernel.org>,\n Bjorn Helgaas <bhelgaas@google.com>, Christoph Hellwig <hch@lst.de>,\n Sagi Grimberg <sagi@grimberg.me>, Chaitanya Kulkarni <kch@nvidia.com>,\n Herbert Xu <herbert@gondor.apana.org.au>,\n \"David S. Miller\" <davem@davemloft.net>,\n Nicolas Ferre <nicolas.ferre@microchip.com>,\n Alexandre Belloni <alexandre.belloni@bootlin.com>,\n Claudiu Beznea <claudiu.beznea@tuxon.dev>, Koichiro Den <den@valinux.co.jp>,\n Niklas Cassel <cassel@kernel.org>", "Cc": "dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-pci@vger.kernel.org, linux-nvme@lists.infradead.org,\n mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org,\n linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org,\n imx@lists.linux.dev, Frank Li <Frank.Li@nxp.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1766073392; l=2903;\n i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id;\n bh=VHS8TmOMGP82ktXP5+p/w9JyqRqfYYWwvmZgaLDJnYQ=;\n b=cCO3DaR2FUEcq5aIxNiq62hjl2RcXjanm1DUYS8Yy+74ZT2xEdrOnKQ9+n2QCNSoFqQ4Zj1aL\n TJqkH5GXsPsBG5IF+sYO0v8bA8OmvLxEooH1M2Z4aLYwCwHzszWvc+X", "X-Developer-Key": "i=Frank.Li@nxp.com; a=ed25519;\n pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q=", 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"=?utf-8?q?JjtcWGCk2FxqUtJjSLPu4jY8oNSS?=\n\t=?utf-8?q?Lm5xCrqdhv3CpyGHXLdiMsKWvO1yJyzfm+YuacszThM666ZWAdJR0L6QrYxt24ghR?=\n\t=?utf-8?q?D+B/lFMy2zGPshVehn/sXJa/5kYUzsJvOGuqCUqZZAg6NnsfqugMUbDtiJvdWCW6G?=\n\t=?utf-8?q?rU3mfW8RONsncrbuLK8HfRMeLC3Dz+jVQY/MIkUd1+KRDj2lY81Q+9w4z8s8xwhKD?=\n\t=?utf-8?q?ZTbxY02IJQdjfki2zyl8wJmr9kDn/QseuIxDg3WMk6Z1FtvKd5LMMfDF4Mg6+i0xQ?=\n\t=?utf-8?q?znuYL+yoz8OthRTa3wa0LdrUcOnnSdC01tVqQSAYoWo9q3r5WKRhDYWP+sPDvW3lq?=\n\t=?utf-8?q?HuMd80DKPS68ykV8EqHB/KxckRCc/X9By8G7oX/TDleDpjLikVYMOpJdMLCuMShH7?=\n\t=?utf-8?q?juGzQsU0i0G9Z7x5IQ/bZ/nXR4AEuNr2SUBBuUhlmQAme3+8CfLp/DYU3P7aSNTKL?=\n\t=?utf-8?q?CteFYFo2UoxOAL+CtUodGu170zd8cLhRpBL+Vo+n7IVc7N9XD84I2fZ5AQS8x7OT9?=\n\t=?utf-8?q?WjyNL5NNJhJkCDzvAIuiXRLoMuWdddp1Ym9PYYNaGktB+hpaQD+qwVicBg61o0lCK?=\n\t=?utf-8?q?NqtKRal2YOmJstkTWQfBOTSxvMf0tRejqLDkPOsjQtdebZ0nS00/yvgHU1rvZdnOf?=\n\t=?utf-8?q?SL/gGyMxF8IK59tgY5zJUHWLA9urDasyf3mo38T111T0B6jd6cpf6tTUGngBbrPiQ?=\n\t=?utf-8?q?O8ua6rEVJorI6Gh4TmnMOj8uMKBc8DIyk2atRZx4+qma9v/vV9YDLLo2jh8YoARcD?=\n\t=?utf-8?q?bK1JeKaAbjnKkNzznOz1kouTLCPU0I7kyusmeyMeQX9l73IYvN+nR1Byyusn/g7jk?=\n\t=?utf-8?q?HSqUDqy7KJC2h7ST3oxnimwd6nb5QqHOvh1OsI5M9YGDNBe1mWdPk5ytLJWI+64EO?=\n\t=?utf-8?q?+z2i667oKPSPL+oHpwB4FGTFlxR9OX9d/XtsUy5U13ojjoXDxJmAxQweMKC3ddxZy?=\n\t=?utf-8?q?Fz/006XCmOxYbjXfBdDiRdAxaF71zvqDn3KSN+Gms6+q5mKslThsE8ozjMSd7HVaH?=\n\t=?utf-8?q?PUiEOUG1s07dLxwJJghdBnKjXYVBAhqu3C3yW/Akg3GLdOt45b7i5VzDkcILTOYlh?=\n\t=?utf-8?q?SCjTNHgGyfSJlQPJ8MMTB1CjBK2Q0zrDKDTKil/rJ5T1rJJ8aFt+xTFnGZVdz/9sI?=\n\t=?utf-8?q?GlahZHa3sSjJ0jq0lKsVdLDjxkpub4mOPDsYcBUXH9HWaOYSDcAydp+XDwlwK5dIc?=\n\t=?utf-8?q?9ac/bFEinLovGSKVhTBXTs3WZozf9b072PzEgjDJ30kPed9hQlIxSy+AGdf4aIXMI?=\n\t=?utf-8?q?+TmhSFt//QCx49R9yT0064b8VZ5owlP4XUtioXvB1/YksyzuGsfLdcxkCoGwGi557?=\n\t=?utf-8?q?ifNtTCq6qeUpA0Cf3SORNaRTpgDZ7pGVI/SMskLWzcRVLndufrfdRpZ/VyKeK+Xb4?=\n\t=?utf-8?q?EgljDDjtWxJo51fi+9cIY6BLre8IuMKjX3ZUd/ojV3UqVwJGt7GBFEfW7zIYk5fPC?=\n\t=?utf-8?q?QBgT+K1D4JrqIlcIkLZ0FZ5O2Dp0LK6FRZ/V9Tx6o9FBB2CqrjK21yHPbiAkIvQE9?=\n\t=?utf-8?q?74aoyZ1pmCeF?=", "X-OriginatorOrg": "nxp.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n cc6c6fe0-7910-46d8-a03f-08de3e4e11c0", "X-MS-Exchange-CrossTenant-AuthSource": "DU2PR04MB8951.eurprd04.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "18 Dec 2025 15:56:56.0438\n (UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "686ea1d3-bc2b-4c6f-a92c-d99c5c301635", "X-MS-Exchange-CrossTenant-MailboxType": "HOSTED", "X-MS-Exchange-CrossTenant-UserPrincipalName": "\n RexCv8vIL8QXIVFYxnuke0bHgmqFoPWwBYhagSEsuqXx6DXtUxrmMVBZA2fLvvLUTxMb0OgmcHiusx+7jwfltQ==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "VI1PR04MB7037" }, "content": "Pass dma_slave_config to dw_edma_device_transfer() to support atomic\nconfiguration and descriptor preparation when a non-NULL config is\nprovided to device_prep_config_sg().\n\nTested-by: Niklas Cassel <cassel@kernel.org>\nSigned-off-by: Frank Li <Frank.Li@nxp.com>\n---\n drivers/dma/dw-edma/dw-edma-core.c | 22 ++++++++++++++++------\n 1 file changed, 16 insertions(+), 6 deletions(-)", "diff": "diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c\nindex e005b7bdaee156a3f4573b4734f50e3e47553dd2..1863254bf61eb892cb0cf8934e53b40d32027dfa 100644\n--- a/drivers/dma/dw-edma/dw-edma-core.c\n+++ b/drivers/dma/dw-edma/dw-edma-core.c\n@@ -230,6 +230,15 @@ static int dw_edma_device_config(struct dma_chan *dchan,\n \treturn 0;\n }\n \n+static struct dma_slave_config *\n+dw_edma_device_get_config(struct dma_chan *dchan,\n+\t\t\t struct dma_slave_config *config)\n+{\n+\tstruct dw_edma_chan *chan = dchan2dw_edma_chan(dchan);\n+\n+\treturn config ? config : &chan->config;\n+}\n+\n static int dw_edma_device_pause(struct dma_chan *dchan)\n {\n \tstruct dw_edma_chan *chan = dchan2dw_edma_chan(dchan);\n@@ -348,7 +357,8 @@ dw_edma_device_tx_status(struct dma_chan *dchan, dma_cookie_t cookie,\n }\n \n static struct dma_async_tx_descriptor *\n-dw_edma_device_transfer(struct dw_edma_transfer *xfer)\n+dw_edma_device_transfer(struct dw_edma_transfer *xfer,\n+\t\t\tstruct dma_slave_config *config)\n {\n \tstruct dw_edma_chan *chan = dchan2dw_edma_chan(xfer->dchan);\n \tenum dma_transfer_direction dir = xfer->direction;\n@@ -427,8 +437,8 @@ dw_edma_device_transfer(struct dw_edma_transfer *xfer)\n \t\tsrc_addr = xfer->xfer.il->src_start;\n \t\tdst_addr = xfer->xfer.il->dst_start;\n \t} else {\n-\t\tsrc_addr = chan->config.src_addr;\n-\t\tdst_addr = chan->config.dst_addr;\n+\t\tsrc_addr = config->src_addr;\n+\t\tdst_addr = config->dst_addr;\n \t}\n \n \tif (dir == DMA_DEV_TO_MEM)\n@@ -550,7 +560,7 @@ dw_edma_device_prep_config_sg(struct dma_chan *dchan, struct scatterlist *sgl,\n \tif (config)\n \t\tdw_edma_device_config(dchan, config);\n \n-\treturn dw_edma_device_transfer(&xfer);\n+\treturn dw_edma_device_transfer(&xfer, dw_edma_device_get_config(dchan, config));\n }\n \n static struct dma_async_tx_descriptor *\n@@ -569,7 +579,7 @@ dw_edma_device_prep_dma_cyclic(struct dma_chan *dchan, dma_addr_t paddr,\n \txfer.flags = flags;\n \txfer.type = EDMA_XFER_CYCLIC;\n \n-\treturn dw_edma_device_transfer(&xfer);\n+\treturn dw_edma_device_transfer(&xfer, dw_edma_device_get_config(dchan, NULL));\n }\n \n static struct dma_async_tx_descriptor *\n@@ -585,7 +595,7 @@ dw_edma_device_prep_interleaved_dma(struct dma_chan *dchan,\n \txfer.flags = flags;\n \txfer.type = EDMA_XFER_INTERLEAVED;\n \n-\treturn dw_edma_device_transfer(&xfer);\n+\treturn dw_edma_device_transfer(&xfer, dw_edma_device_get_config(dchan, NULL));\n }\n \n static void dw_hdma_set_callback_result(struct virt_dma_desc *vd,\n", "prefixes": [ "v2", "4/8" ] }