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GET /api/1.0/patches/2197352/?format=api
{ "id": 2197352, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2197352/?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": "<20260217173457.18628-9-akhilrajeev@nvidia.com>", "date": "2026-02-17T17:34:57", "name": "[8/8] arm64: tegra: Add iommu-map and enable GPCDMA in Tegra264", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "4b9fff7346b96708304fa518038203bc55df9500", "submitter": { "id": 81965, "url":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/20260217173457.18628-9-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/2197352/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-tegra+bounces-12019-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=iI45BF76;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n 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<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 8/8] arm64: tegra: Add iommu-map and enable GPCDMA in Tegra264", "Date": "Tue, 17 Feb 2026 23:04:57 +0530", "Message-ID": "<20260217173457.18628-9-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": 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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)(36860700013)(376014)(7416014)(82310400026)(1800799024);DIR:OUT;SFP:1101;", "X-MS-Exchange-AntiSpam-MessageData-ChunkCount": "1", "X-MS-Exchange-AntiSpam-MessageData-0": "\n\trIRS36lDqPyOYO8dPm3e5zbzMV7NrvHl8+rcZTVlPnB137eJqFFmQLou5xi6W97xyumtPmavNSAXEYqeA8m8J/iuWDJiuBN2GVfkMvhiBHC2palLvXjVFfgqjvC+3wyX1xqTOsfo7fy+UQCKMiwHW7HtMXZnREz3hpVQYv0I3p2zOZiD/zQsA8TQvAt3EM3TfkAS7gHLZfUbn2tvjbvBINOMYnu/2o1leNDtdAEuSBBB1q+x9nUIVC7tQwS8oMHXt1N6eVsix8f/D/Wvc1c6rAtmhzcPKYgUMoQYtXbXXYjALSNJplmaSMBLoNskST2cni44/WH2vUF0HJyqtJ3AMMJ+fPCdb03tJR5znK5qfKm0kwDRRqRfOtZFRi1Iai7pu9I23E1a2D2bij6ts+W2/iyrIin01OunzX/Ed3WdF/q5OV9mF4fCf7WMjq4yHN+s", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "17 Feb 2026 17:37:17.5967\n (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 1066cab6-c3d3-43f1-838e-08de6e4b3232", "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\tMWH0EPF000A6735.namprd04.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "BN7PPF02710D35B" }, "content": "Add iommu-map and remove iommus in the GPCDMA controller node so\nthat each channel uses separate stream ID and gets its own IOMMU\ndomain for memory. Also enable GPCDMA for Tegra264.\n\nSigned-off-by: Akhil R <akhilrajeev@nvidia.com>\n---\n .../arm64/boot/dts/nvidia/tegra264-p3834.dtsi | 4 +++\n arch/arm64/boot/dts/nvidia/tegra264.dtsi | 33 ++++++++++++++++++-\n 2 files changed, 36 insertions(+), 1 deletion(-)", "diff": "diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi\nindex 7e2c3e66c2ab..c8beb616964a 100644\n--- a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi\n+++ b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi\n@@ -16,6 +16,10 @@ serial@c4e0000 {\n \t\tserial@c5a0000 {\n \t\t\tstatus = \"okay\";\n \t\t};\n+\n+\t\tdma-controller@8400000 {\n+\t\t\tstatus = \"okay\";\n+\t\t};\n \t};\n \n \tbus@8100000000 {\ndiff --git a/arch/arm64/boot/dts/nvidia/tegra264.dtsi b/arch/arm64/boot/dts/nvidia/tegra264.dtsi\nindex 7644a41d5f72..0317418c95d3 100644\n--- a/arch/arm64/boot/dts/nvidia/tegra264.dtsi\n+++ b/arch/arm64/boot/dts/nvidia/tegra264.dtsi\n@@ -3243,7 +3243,38 @@ gpcdma: dma-controller@8400000 {\n \t\t\t\t <GIC_SPI 614 IRQ_TYPE_LEVEL_HIGH>,\n \t\t\t\t <GIC_SPI 615 IRQ_TYPE_LEVEL_HIGH>;\n \t\t\t#dma-cells = <1>;\n-\t\t\tiommus = <&smmu1 0x00000800>;\n+\t\t\tiommu-map =\n+\t\t\t\t<1 &smmu1 0x801 1>,\n+\t\t\t\t<2 &smmu1 0x802 1>,\n+\t\t\t\t<3 &smmu1 0x803 1>,\n+\t\t\t\t<4 &smmu1 0x804 1>,\n+\t\t\t\t<5 &smmu1 0x805 1>,\n+\t\t\t\t<6 &smmu1 0x806 1>,\n+\t\t\t\t<7 &smmu1 0x807 1>,\n+\t\t\t\t<8 &smmu1 0x808 1>,\n+\t\t\t\t<9 &smmu1 0x809 1>,\n+\t\t\t\t<10 &smmu1 0x80a 1>,\n+\t\t\t\t<11 &smmu1 0x80b 1>,\n+\t\t\t\t<12 &smmu1 0x80c 1>,\n+\t\t\t\t<13 &smmu1 0x80d 1>,\n+\t\t\t\t<14 &smmu1 0x80e 1>,\n+\t\t\t\t<15 &smmu1 0x80f 1>,\n+\t\t\t\t<16 &smmu1 0x810 1>,\n+\t\t\t\t<17 &smmu1 0x811 1>,\n+\t\t\t\t<18 &smmu1 0x812 1>,\n+\t\t\t\t<19 &smmu1 0x813 1>,\n+\t\t\t\t<20 &smmu1 0x814 1>,\n+\t\t\t\t<21 &smmu1 0x815 1>,\n+\t\t\t\t<22 &smmu1 0x816 1>,\n+\t\t\t\t<23 &smmu1 0x817 1>,\n+\t\t\t\t<24 &smmu1 0x818 1>,\n+\t\t\t\t<25 &smmu1 0x819 1>,\n+\t\t\t\t<26 &smmu1 0x81a 1>,\n+\t\t\t\t<27 &smmu1 0x81b 1>,\n+\t\t\t\t<28 &smmu1 0x81c 1>,\n+\t\t\t\t<29 &smmu1 0x81d 1>,\n+\t\t\t\t<30 &smmu1 0x81e 1>,\n+\t\t\t\t<31 &smmu1 0x81f 1>;\n \t\t\tdma-coherent;\n \t\t\tdma-channel-mask = <0xfffffffe>;\n \t\t\tstatus = \"disabled\";\n", "prefixes": [ "8/8" ] }