Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.0/patches/2197347/?format=api
{ "id": 2197347, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2197347/?format=api", "project": { "id": 21, "url": "http://patchwork.ozlabs.org/api/1.0/projects/21/?format=api", "name": "Linux Tegra Development", "link_name": "linux-tegra", "list_id": "linux-tegra.vger.kernel.org", "list_email": "linux-tegra@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260217173457.18628-2-akhilrajeev@nvidia.com>", "date": "2026-02-17T17:34:50", "name": "[1/8] dt-bindings: dma: nvidia,tegra186-gpc-dma: Add iommu-map property", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "cbc7615e4b32cac9508a62c7e90b4896805d46e1", "submitter": { "id": 81965, "url": "http://patchwork.ozlabs.org/api/1.0/people/81965/?format=api", "name": "Akhil R", "email": "akhilrajeev@nvidia.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-tegra/patch/20260217173457.18628-2-akhilrajeev@nvidia.com/mbox/", "series": [ { "id": 492464, "url": "http://patchwork.ozlabs.org/api/1.0/series/492464/?format=api", "date": "2026-02-17T17:34:49", "name": "Add GPCDMA support in Tegra264", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492464/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2197347/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-tegra+bounces-12012-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-tegra@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=Nvidia.com header.i=@Nvidia.com header.a=rsa-sha256\n header.s=selector2 header.b=fZ/YzftF;\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; helo=sea.lore.kernel.org;\n envelope-from=linux-tegra+bounces-12012-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com\n header.b=\"fZ/YzftF\"", "smtp.subspace.kernel.org;\n arc=fail smtp.client-ip=40.107.201.18", "smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=nvidia.com", "smtp.subspace.kernel.org;\n spf=fail smtp.mailfrom=nvidia.com" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fFmyx3jfdz1xwD\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 18 Feb 2026 04:36:25 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id 1796C301BCD5\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 17 Feb 2026 17:36:04 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id EF12A36F422;\n\tTue, 17 Feb 2026 17:36:03 +0000 (UTC)", "from CH4PR04CU002.outbound.protection.outlook.com\n (mail-northcentralusazon11013018.outbound.protection.outlook.com\n [40.107.201.18])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 8C40B36EA9E;\n\tTue, 17 Feb 2026 17:36:02 +0000 (UTC)", "from BY5PR13CA0018.namprd13.prod.outlook.com (2603:10b6:a03:180::31)\n by DS4PR12MB9562.namprd12.prod.outlook.com (2603:10b6:8:27e::5) with\n Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9632.13; Tue, 17 Feb\n 2026 17:35:55 +0000", "from SJ1PEPF00002313.namprd03.prod.outlook.com\n (2603:10b6:a03:180:cafe::f7) by BY5PR13CA0018.outlook.office365.com\n (2603:10b6:a03:180::31) with Microsoft SMTP Server (version=TLS1_3,\n cipher=TLS_AES_256_GCM_SHA384) id 15.20.9632.13 via Frontend Transport; Tue,\n 17 Feb 2026 17:35:52 +0000", "from mail.nvidia.com (216.228.118.233) by\n SJ1PEPF00002313.mail.protection.outlook.com (10.167.242.167) with Microsoft\n SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.20.9632.12 via Frontend Transport; Tue, 17 Feb 2026 17:35:53 +0000", "from drhqmail203.nvidia.com (10.126.190.182) by mail.nvidia.com\n (10.127.129.6) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 17 Feb\n 2026 09:35:36 -0800", "from drhqmail202.nvidia.com (10.126.190.181) by\n drhqmail203.nvidia.com (10.126.190.182) with Microsoft SMTP Server\n (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.2.2562.20; Tue, 17 Feb 2026 09:35:36 -0800", "from BUILDSERVER-IO-L4T.nvidia.com (10.127.8.9) by mail.nvidia.com\n (10.126.190.181) with Microsoft SMTP Server id 15.2.2562.20 via Frontend\n Transport; Tue, 17 Feb 2026 09:35:32 -0800" ], "ARC-Seal": [ "i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1771349763; cv=fail;\n b=PB8crFCj4YYRwo/H9ekkI9qvh9ZBVA3DTGhCHUXth1lNHeWD6ljGASbsLXH73cA1faPiTzHsn8wKPVDtVpy4VEo4ti3ouC80jLyQljZfKva2U9dPEEuLb7fPmIv0T21zCrGF/9SQGJSsuPBOCn2W4heR5T6twJ1rojS7mNE3HCo=", "i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none;\n b=aslcGpkILFq2fgz9LTTNDFgOEcPhogG03Y+W3yS4hZJLW/lfeShUBz8SYA8r/Tu6S0b+JRLJqiajBynPHAPoMNoy2jqbe6OdhSIiTGGLt3ImKkX7UTDkwGrsom9VW0wcIEMd7NRC78VvXS37VhBTjtv1kZR3PsKcT8bDKbFODF7roh2nwdVXLadPB/xbmVHLNhy/CFZzDfk255ft+NfQ73R5RA4+6GXGnoof3DvJuXY+d+3uZujWMrLxIzyxmCDoIok+jOkoBn8loCOckXey8xSLUoTGwg6F/NPMqdhqc5dxe9+YTV2W2JIS7qmWAM8zhdtzx+p3a5IHF5ZqTWUY5A==" ], "ARC-Message-Signature": [ "i=2; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1771349763; c=relaxed/simple;\n\tbh=nmtYleU8g/3i89moukqpRFVTH/jLqXceCad7lN4JgPo=;\n\th=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version:Content-Type;\n b=kdpMjn6GA9Hp4RsPJFOJxozrjE8tnAihA5RSbeXyzfeCj9PdqyJ8QEEfpCXqP9Pbzf4Iwv5be+N/aCFcuMd3ckBbUqfJ24jvBn9aMNeaCTH0JvUQm0RUcUgddmSdmYeAEL9xKQyFaP5x/nbf7vmtgFowRZ/WpLg4IafHAOQzorI=", "i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;\n s=arcselector10001;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1;\n bh=AQb13qoEF0I7SQZSDbrA0a/IXGj4gQtx96mMaCfet2Y=;\n b=IQZ8IC1VBc1TMfeNFQNQniIR7SmFssRwLLxtfGUI51uN9XhzAdNwdKesoTJTV4BMRsilu8nOAaTsCmSt6cqMgnbxOmxatlzkiiRNMOkRkyvOHekxqrq+1ajBXbqdvFdf8ddVP4fd/WFpDRimBEb/bCOq5+Q9PoDdEwSNdI2hcTmqyBYngqYOsvn1ngltXdn8VlBm0dv8wEQxwlQROP+s3FTOKNpE3FTA/NcO8fdllxIfUZH+1ZJEVXiSLQOd1xaff738kQNAwClFNrEPylGABqx2TRb0cijxGnNxajDl6miQwVkrguRI+mFmVf6yUkOlu0/fs27+XQnZPBG+2gtjhQ==" ], "ARC-Authentication-Results": [ "i=2; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=nvidia.com;\n spf=fail smtp.mailfrom=nvidia.com;\n dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com\n header.b=fZ/YzftF; arc=fail smtp.client-ip=40.107.201.18", "i=1; mx.microsoft.com 1; spf=pass (sender ip is\n 216.228.118.233) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=nvidia.com;\n dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com;\n dkim=none (message not signed); arc=none (0)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com;\n s=selector2;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=AQb13qoEF0I7SQZSDbrA0a/IXGj4gQtx96mMaCfet2Y=;\n b=fZ/YzftFhEs3RwqqrOevix2E6NRD4evaazHzTri5BhYVfNMCgXYfFrkxeZjp6cHZg0IBtVZvF19ax9sn+sLAife4D5CF4cNTRHc01+2qEscJCaHRNdNQcXzhVvd/bOUjUYqP8fv0KfB6RYLwGrG3RaJJoRdYhPhS+DJ9PBrVqm7WeApaQPHsx9RL+I65NFc/9ecFrI83mTxxQS0lSPtPYTmDoAoRlmHsjoZMJYTv3MNQp8uj+ZvjZAFdRVLftLEQL70PCfASAxCbGlWQiEHUtixwHrn0/UMsJ/fZN42nUk1wjRxwS8euEwgt/9/pnlIVk3ib8chjjyjzLedyNXVJgQ==", "X-MS-Exchange-Authentication-Results": "spf=pass (sender IP is 216.228.118.233)\n smtp.mailfrom=nvidia.com; dkim=none (message not signed)\n header.d=none;dmarc=pass action=none header.from=nvidia.com;", "Received-SPF": "Pass (protection.outlook.com: domain of nvidia.com designates\n 216.228.118.233 as permitted sender) receiver=protection.outlook.com;\n client-ip=216.228.118.233; helo=mail.nvidia.com; pr=C", "From": "Akhil R <akhilrajeev@nvidia.com>", "To": "<dmaengine@vger.kernel.org>, <linux-tegra@vger.kernel.org>", "CC": "<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,\n\t<vkoul@kernel.org>, <Frank.Li@kernel.org>, <robh@kernel.org>,\n\t<krzk+dt@kernel.org>, <conor+dt@kernel.org>, <thierry.reding@gmail.com>,\n\t<jonathanh@nvidia.com>, <p.zabel@pengutronix.de>, Akhil R\n\t<akhilrajeev@nvidia.com>", "Subject": "[PATCH 1/8] dt-bindings: dma: nvidia,tegra186-gpc-dma: Add iommu-map\n property", "Date": "Tue, 17 Feb 2026 23:04:50 +0530", "Message-ID": "<20260217173457.18628-2-akhilrajeev@nvidia.com>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260217173457.18628-1-akhilrajeev@nvidia.com>", "References": "<20260217173457.18628-1-akhilrajeev@nvidia.com>", "Precedence": "bulk", "X-Mailing-List": "linux-tegra@vger.kernel.org", "List-Id": "<linux-tegra.vger.kernel.org>", "List-Subscribe": "<mailto:linux-tegra+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-tegra+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "X-NVConfidentiality": "public", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-NV-OnPremToCloud": "ExternallySecured", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "SJ1PEPF00002313:EE_|DS4PR12MB9562:EE_", "X-MS-Office365-Filtering-Correlation-Id": "439babef-e381-4df8-7c2b-08de6e4afffe", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "\n\tBCL:0;ARA:13230040|1800799024|82310400026|36860700013|7416014|376014;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "\n\tCIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(36860700013)(7416014)(376014);DIR:OUT;SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n\tm0mgorXTtiYiCGWz8kGl78AqKEVE9nXJM/oL7GAeAdMQXWsWQMK+WiBB8dqgMM3D3AjDwbS9MpuWAuuYhbUrdqif7hswzCttRLFBY1/9+V87zTnku0DzygxxTXvj/CVFVQUQTsZdDvUyBeFFaEfN5ksxpL30STJ7EEMv9ViCcPqITVcVLKRjJyf5VRWdxWGXnSy38tYQtsT+sHKmXEABrQTgVGSCiPHtQomadbMZXHCTpdlhHHNZ2kvdtaC1SVjmY4c+ozAfclLkSjhPnyIM3HnuDrEhPq9xixHhHavdVdAct0zoYX8M83oshJ0xWE1Le34QEoXAZbFePMcybv/1k8OazeSukMTgaj4XL0OctjTo8wvJd6NHRsUoNQNgvcd2mbMN8yHWEgB8gThMQE/N69AHn13hmSmRmC98etgaXUEE8jHUlR0WDnUGDzP+Nu88", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "17 Feb 2026 17:35:53.4493\n (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 439babef-e381-4df8-7c2b-08de6e4afffe", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n\tSJ1PEPF00002313.namprd03.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DS4PR12MB9562" }, "content": "Add iommu-map property which helps when each channel requires its own\nstream ID for the transfer. Use iommu-map to specify separate stream\nID for each channel. This enables each channel to be in its own iommu\ndomain and keeps the memory isolated from other devices sharing the\nsame DMA controller.\n\nSigned-off-by: Akhil R <akhilrajeev@nvidia.com>\n---\n .../devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml | 8 ++++++++\n 1 file changed, 8 insertions(+)", "diff": "diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml\nindex 0dabe9bbb219..542e9cb9f641 100644\n--- a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml\n+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml\n@@ -14,6 +14,7 @@ description: |\n maintainers:\n - Jon Hunter <jonathanh@nvidia.com>\n - Rajesh Gumasta <rgumasta@nvidia.com>\n+ - Akhil R <akhilrajeev@nvidia.com>\n \n allOf:\n - $ref: dma-controller.yaml#\n@@ -51,6 +52,13 @@ properties:\n iommus:\n maxItems: 1\n \n+ iommu-map:\n+ description: |\n+ The mapping of DMA controller channels to IOMMU stream IDs. Each entry in the map specifies the\n+ relationship between a DMA channel and its corresponding IOMMU stream ID. The format is:\n+ \"<ch_no &smmu stream_id length>\". Example: \"<1 &smmu 0x801 1>\"\n+ $ref: /schemas/types.yaml#/definitions/phandle-array\n+\n dma-coherent: true\n \n dma-channel-mask:\n", "prefixes": [ "1/8" ] }