From nobody Mon Feb 9 05:59:54 2026 Received: from BN1PR04CU002.outbound.protection.outlook.com (mail-eastus2azon11010043.outbound.protection.outlook.com [52.101.56.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2D9D2848B4; Fri, 31 Oct 2025 06:30:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.56.43 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761892230; cv=fail; b=UM3I3ch4kz8o/rK7d0wOiFfmtmYC9o6bslhxEbMvAeo/iTZbgs03srprtALdsYlHdiswMUpp+H83/3pT1QoQdPmRU/kXXzliq997I9zoQIKaoJ+T38z+ry9TR2oBQY8LK5l7D/iLUw8Z01iu9BpeFwrdjDRXI+0fymfHqjm0Vcc= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761892230; c=relaxed/simple; bh=SSbDvBBW6ZXisNzTWWLKQS48Hep8okVDgeN4fnJuY6w=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=e8PdAGTW35uVD9+BRM2HJobjKX14lAM89TlINgnG9kkguMAyqNoAAHx+/RnB5Ba00anMFbKahTcMyYj11imBrHq0M8q5eQJzgO9G5wLJiTDJknMneOCVozgBVfdeA16ekVrUW4eUzmSlcGOnORjI7uKC9bmYLTo/RiHH3Tavrv0= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=oEwsMkRZ; arc=fail smtp.client-ip=52.101.56.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="oEwsMkRZ" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Ksv8qvreiZCOBXdPu00ECosl00mYhnPLtdFa2HCV4R5QV0jxGHppBLXPiXGMhbrjhFT/eCKCbjUUD6e6r+VSyYb52rqmxDQjjx7hGtGv8MDYm70fnn9QEjMmKHOdEE4otCpbCINNIFlZ8Rjom3/d2LrXbTkIXuqX8ec+tlFDvcKcJqqXQy5qZcRM+vQynkwGkzehsENnxMiW+YjYYu1XkxJ8blAGZFzpnDPEmiyuiChsE2HOHGtJyxtzhe1r+qXC93W4mauog+izA42zeNafK/c6jQkTvAQwGH8QrnHRHmTJOqBdLAqD776M88fhExJSNsb2A56JjKn9V0dF5VJGBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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; bh=IYvj0ypeNxcEODqdKVzZAsLDj14ePhydmCi7JCF5YvY=; b=XWKcwlz5913hwy1aO/Vu5eI+fdZPoLYBtfk9o1XOh0vy2DmqScrsyU288dHH+L7n/cU+8qAq5sO4VVLGtYYsLzF4pEzL9QYa/T7AuLJmig5V3GLyKo7q9i9qij+PCdineKQn8uOztazGi+zpPOBWTynwEfnMBAqdy121OvaHgYAAJDhbsmULvKDYXSphWNjZSMcAYl5OcHdHf2jX184K8Nf8DV+odMkCRm04A219JvmQfkctKxmqKuB0uaXBdvROqlf8LDM8EcPFcQ09I1Ogx/wvjyr+jKyThCpVld0TWA5XKKNeq3SVlxEiyWOpJnVHhLBX724fgozStbu41BkNjQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=kernel.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=IYvj0ypeNxcEODqdKVzZAsLDj14ePhydmCi7JCF5YvY=; b=oEwsMkRZE7bNBbHNGsKSyEV6tQBR9T11PFfMyKx1bjILvGv904UoYGrvOVrPsZe0V23p2NO0L0E2OjdbRzKmhw1Y6q6SRwIy3caSagZgelm8Ssa02V5Xgu4fXLEg0KyZJm22HuKXnl92agreglZnPFmH2wG2+7bXswpOzNJuUyyPc9qxT9vdFEe3FvBesTrenH0bZwA3geUP5hO+C7StgV3cI9oc8RiWn7etDq6kzqmO1SQIUU2p0rkhs1UvzOgbwN+1ZdzHbQsJ3D1euooVABHXI9zDY4XFGXEUGj3OCA3HW/dbRpj2cwe7o01K/G+P3b9HZRu2hsQ6waHb0DD4sg== Received: from BN0PR04CA0134.namprd04.prod.outlook.com (2603:10b6:408:ed::19) by DM6PR12MB4059.namprd12.prod.outlook.com (2603:10b6:5:215::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9275.15; Fri, 31 Oct 2025 06:30:25 +0000 Received: from BN2PEPF00004FBF.namprd04.prod.outlook.com (2603:10b6:408:ed:cafe::fe) by BN0PR04CA0134.outlook.office365.com (2603:10b6:408:ed::19) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9275.15 via Frontend Transport; Fri, 31 Oct 2025 06:30:03 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by BN2PEPF00004FBF.mail.protection.outlook.com (10.167.243.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9275.10 via Frontend Transport; Fri, 31 Oct 2025 06:30:24 +0000 Received: from rnnvmail202.nvidia.com (10.129.68.7) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14; Thu, 30 Oct 2025 23:30:06 -0700 Received: from rnnvmail203.nvidia.com (10.129.68.9) by rnnvmail202.nvidia.com (10.129.68.7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Thu, 30 Oct 2025 23:30:05 -0700 Received: from build-amhetre-focal-20250825.internal (10.127.8.10) by mail.nvidia.com (10.129.68.9) with Microsoft SMTP Server id 15.2.2562.20 via Frontend Transport; Thu, 30 Oct 2025 23:30:05 -0700 From: Ashish Mhetre To: , , , , , , , , , CC: , , , , , , Ashish Mhetre Subject: [PATCH 2/3] dt-bindings: iommu: Add NVIDIA Tegra CMDQV support Date: Fri, 31 Oct 2025 06:29:58 +0000 Message-ID: <20251031062959.1521704-3-amhetre@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20251031062959.1521704-1-amhetre@nvidia.com> References: <20251031062959.1521704-1-amhetre@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN2PEPF00004FBF:EE_|DM6PR12MB4059:EE_ X-MS-Office365-Filtering-Correlation-Id: b612642d-25ec-4447-fb4b-08de1846f96a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|82310400026|36860700013|1800799024|13003099007|921020; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?BpIayLrNrgqJ3w2hBnpZDBXdV2/YPjsjIR1VG2ITlE68BpOM+yXGn+L0C982?= =?us-ascii?Q?FTRMPEltioZrcnnEsy6CDJhbR6z/vZJDR7jNTSbZb+WnD2AqTneTrfD1Nnvl?= =?us-ascii?Q?mGLAKPs8hnoQGG93Zn36+f8ysw1o6inYks2oMqt0+VLEfxjgUFGSqwFu8CeH?= =?us-ascii?Q?Y/O2kFFSbpiINyv/z2wa4FR/KAaPUrEieq/J3umRTVakQtQW0KiD4P0r5xcj?= =?us-ascii?Q?QpWJdbjrYHqlP5BrZ78ViRNzdW4PPcZsp5Sb99DWn+fMbq0viWlgAiTLZU/+?= =?us-ascii?Q?5UMpNweJoJP6UBigGFEqVS053RVgpRO7V7wUGhjeloo6f18l+Xywugm9pD0k?= =?us-ascii?Q?4H3JN+RdnSP7ATZzY1Tgms1zK6yspgVCGGVUvGFMvK9XPOSoxlUUxykkCQDZ?= =?us-ascii?Q?qtZH9jIK98ElVJhqocHPytZ6dzzpdDHg8Yj/dUIZEnj0soYYVvl+FXlehDOW?= =?us-ascii?Q?DkPD/0pd0Ie1thpniJyLFVpUy7fo1Qf1cE/AiGkRbi9kxJORPmHFDCk+tHYM?= =?us-ascii?Q?mhe4o+CbfDWnXcjSYSriMC21Y5r5XgQvEEW4zpcnJefWgKWURUh2axBA9qgy?= =?us-ascii?Q?iAKwMZpexcgKO7SEaSHURc/zOMSQRfbENBImfMcR/Zl+MuGfXDLUUfkLED5i?= =?us-ascii?Q?WVh4jyrTSwPbqKOgShXnFEbYm6BDVnowBFEb3jXIZsC1AmSmT6bOMDb4b2RE?= =?us-ascii?Q?0hk8o2GzkplMpo5V25JuBmNv8Wl6lEiZGyzRWtxlr41WeMVzg2mbxWASYIUo?= =?us-ascii?Q?wJYuevU4AM/CZcqcxexedez95B8bkAccYS++AdF/FrfoNhixrct3dsvnBQ4b?= =?us-ascii?Q?U2rSVcHpwxCZ0Iyf6BB/O1fwNl86rWtNZtf8yVVh0xX7UA0TvlfM8RpWZjre?= =?us-ascii?Q?azGhNsyTIjoSeSNEQF/6t+OBO3xAPkGo/XVBhC041XW0z4qbH+QSZjHRAnBY?= =?us-ascii?Q?MGjksCp+O7yA+uU7PJSzCIe3bPH0vKr9kCzrjqKt4yyE+m4dVVyyRvmbQh8C?= =?us-ascii?Q?/d8BmGjXxzb9QjyUQg5Va3/LcXDdIB34RUitdePoc0JV4XPr7xVlUsL3jVRt?= =?us-ascii?Q?iY1ed8JoOlixQbVBdQv42eExg7pfnAAlOxONCW/s/70poOFi54lIwCYkcWMr?= =?us-ascii?Q?D/CvJAgcw7YEV3/MOVehm72zbNu+ryUvIyjEPlhLnR2ZtkXaqiC4DP5BbV1F?= =?us-ascii?Q?lRqnbMLH68RlHsGM0JMp2OzWm7fldiwtvEXfFvMvN+r/kWM7iICJCjNTIxwL?= =?us-ascii?Q?Txqv3Ei0RS7b7YveAcdCWPDIjD8pchfCaXSS1Aadht8wGBFdRf+tAuKDn42q?= =?us-ascii?Q?V512rHE6AHeddcunW8V5YU+F0gpe4YjNGQE52a3NH05JzPwi+8PQBeD2u0sN?= =?us-ascii?Q?wYrnj4fIH0RYe5DLIJlKo6y64vgx3vUogBFyb5n+RykdpHCGgbA9K26zE/ob?= =?us-ascii?Q?Kl+v/yNWtVDyP9pDHkOGgQBqF95bgMTeM66UJ94aZyzzQr2s48zhW5s7AfLE?= =?us-ascii?Q?NKeg3TcR70UIrs/5bL3wFWy9qas4nlpVY7IsTqR8eryMvebgIn2Enl3oOByP?= =?us-ascii?Q?eAI/VeAbRle6kSjWNZ+QdYY/vnyFELk9+/9uplPy?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(82310400026)(36860700013)(1800799024)(13003099007)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Oct 2025 06:30:24.2691 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b612642d-25ec-4447-fb4b-08de1846f96a X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF00004FBF.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4059 Content-Type: text/plain; charset="utf-8" The Command Queue Virtualization (CMDQV) hardware is part of the SMMUv3 implementation on NVIDIA Tegra SoCs. It assists in virtualizing the command queue for the SMMU. Add a new device tree binding document for nvidia,tegra264-cmdqv. Also update the arm,smmu-v3 binding to include an optional nvidia,cmdqv property. This property is a phandle to the CMDQV device node, allowing the SMMU driver to associate with its corresponding CMDQV instance. Signed-off-by: Ashish Mhetre --- .../bindings/iommu/arm,smmu-v3.yaml | 10 ++++ .../bindings/iommu/nvidia,tegra264-cmdqv.yaml | 46 +++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/nvidia,tegra264= -cmdqv.yaml diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml b/Doc= umentation/devicetree/bindings/iommu/arm,smmu-v3.yaml index 75fcf4cb52d9..edc0c20a0c80 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml @@ -58,6 +58,15 @@ properties: =20 msi-parent: true =20 + nvidia,cmdqv: + description: | + A phandle to its pairing CMDQV extension for an implementation on NV= IDIA + Tegra SoC. + + If this property is absent, CMDQ-Virtualization won't be used and SM= MU + will only use its own CMDQ. + $ref: /schemas/types.yaml#/definitions/phandle + hisilicon,broken-prefetch-cmd: type: boolean description: Avoid sending CMD_PREFETCH_* commands to the SMMU. @@ -92,4 +101,5 @@ examples: dma-coherent; #iommu-cells =3D <1>; msi-parent =3D <&its 0xff0000>; + nvidia,cmdqv =3D <&cmdqv>; }; diff --git a/Documentation/devicetree/bindings/iommu/nvidia,tegra264-cmdqv.= yaml b/Documentation/devicetree/bindings/iommu/nvidia,tegra264-cmdqv.yaml new file mode 100644 index 000000000000..f22c370278a3 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/nvidia,tegra264-cmdqv.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra264 CMDQV +description: | + The CMDQ-Virtualization hardware block is part of the SMMUv3 implementat= ion + on Tegra264 SoCs. It assists in virtualizing the command queue for the S= MMU. + +maintainers: + - NVIDIA Corporation + +properties: + compatible: + const: nvidia,tegra264-cmdqv + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-names: + items: + - const: cmdqv + +required: + - compatible + - reg + - interrupts + - interrupt-names + +additionalProperties: false + +examples: + - | + #include + #include + + cmdqv: cmdqv@8105200000 { + compatible =3D "nvidia,tegra264-cmdqv"; + reg =3D <0x81 0x05200000 0x0 0x00830000>; + interrupts =3D ; + interrupt-names =3D "cmdqv"; + }; --=20 2.25.1