From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from BL2PR02CU003.outbound.protection.outlook.com (mail-eastusazon11011001.outbound.protection.outlook.com [52.101.52.1]) (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 CFFB93B8D5C; Tue, 24 Mar 2026 19:10:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.52.1 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774379452; cv=fail; b=Q7o7J07OrgJtSyhSnBKFw4Shd9HU8aRe5lXadeBTeoGSknmmDZeZyfs9I93NY9ioDwiKiHnur+g6eTZBSqvkq+TIexVJSo8KckKr820MT80eVEiOEXvbfpa3scofgAc8KD0qrLwaplLCSCzGVPTSQ1QuHNiqrxb+IVaELDxRyh4= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774379452; c=relaxed/simple; bh=bTPvUzXaOIvxh1jPZ6eCJqeLaVwSrXhboz9g8fx+fqg=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=q7WbLFdcYYC/BmxyEtjFcOhLBmvyhepPd6A7ClzR8f4VPizMSGI9Zp6UNxZPqTtZSMDN38O7CbFyhS1jcQNVupJ95bAdUJDQZsNd222kECqSk0yeFuF0/4lxH8CWf4vwXnEY2Vy3ZTLy4QtOEZqGJ6Ctr95+zk96fNQl+dBvTFA= 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=a5JN1KHY; arc=fail smtp.client-ip=52.101.52.1 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="a5JN1KHY" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=oeqhpkIhUbGqYoTDBfNzdsF7aNiJH6Yq/YCMCAJODQGGLzjDIyJlqBIXn/OU9WpT42CSEEqr79wRaE7wG73WnyA7CcFBxBZTxxEbXGqXR4MrNwScAw662Sh8cSHeRyuOAFSgsGVG4u1dSzTZ6FyfCAU3M6Em/wWrrLBCE6xx4V9wBOqwyxuNtxtiBRh2N68K4en4TdhCu89Jj9/ViJMSM0TK98NQ0dcRfg4UAV2v8KmtmpJstU2whp6NYs7RGp1ZYkZX/qZRb/iCBMT1KKxf3PMbwJx/kbNqw34U7ihRQlc1Lg+PFS6lSlMnS9jCqaI8FIGYMvDUC3JJ2NizmqglEQ== 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=XEzRWJX1ol8yMPjNBKMn9Si0EdY6PI65k2NmkU0jRdQ=; b=VFEw9OvAkG6s3eqJ8NPQXwP8J6X/e5Z2J8S/JMdFwRtp8Ak+OKRVq2Orc7IyaoMH+MQ7DJhHcPqndQgmEz2K1EEcf0t0kmO2phvrhGxhHvcc7leu0r80Jn5y8YKQozDMNePJPYDqHffDOecgk8Ef05Bdv5GUEthiSmiRBJkInwu/2yBAOaU7+6vSh14bP7pPO2h1+7Dguc/IFNAcUk1FINJB5pzXGKaPXhD27g1i+LJMgWUNlO0f/AlddpkwxyvZmQ95OkzgqESMqeCUjCZ6WfDQ57FxCW5umXmet9XA6X4UKTBOjXb9ZVdpBa4kSmWMXN6GOxbT5rJJ773yTMM3JQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=google.com 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=XEzRWJX1ol8yMPjNBKMn9Si0EdY6PI65k2NmkU0jRdQ=; b=a5JN1KHYETPZ1NqITmgtdAGUofLO27Km/smXH+em835vOMs/+SuWb1svaQMyPLS5ZN2KFOMiBwCOqZ9h3kzLE/4qeTT30FVx64VGROPRl6Mzvs8f08Lzllv6slplX+5K0GHx1RTeW4IFj5/7UzEhqO1qSOmQqjzljro60peSiaaAYY7umJCfLobrz625bkNSeLASO/er4xTq2c3MyG6srvXfX8v7bCZILt3zUkstPimST8ddnO04nzsOroflj+CSf8C7Zasdl78Sk8SxSr4gK7tsuLth7ts1o6dugyuFwqBUZ9VWhJd2OvVnC+eHY36ApcJuL9vFkqp5LrNOpKtvAQ== Received: from DSSP220CA0014.NAMP220.PROD.OUTLOOK.COM (2603:10b6:8:3d3::7) by BY5PR12MB4289.namprd12.prod.outlook.com (2603:10b6:a03:204::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9745.20; Tue, 24 Mar 2026 19:10:44 +0000 Received: from DS2PEPF00003446.namprd04.prod.outlook.com (2603:10b6:8:3d3:cafe::f2) by DSSP220CA0014.outlook.office365.com (2603:10b6:8:3d3::7) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9723.31 via Frontend Transport; Tue, 24 Mar 2026 19:10:44 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) 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 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by DS2PEPF00003446.mail.protection.outlook.com (10.167.17.73) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9723.19 via Frontend Transport; Tue, 24 Mar 2026 19:10:44 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 24 Mar 2026 12:10:21 -0700 Received: from mmaddireddy-ubuntu.nvidia.com (10.126.230.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 24 Mar 2026 12:10:15 -0700 From: Manikanta Maddireddy To: , , , , , , , , , , , , , , , , , , <18255117159@163.com> CC: , , , Manikanta Maddireddy Subject: [PATCH v8 0/9] Enhancements to pcie-tegra194 driver Date: Wed, 25 Mar 2026 00:39:51 +0530 Message-ID: <20260324191000.1095768-1-mmaddireddy@nvidia.com> X-Mailer: git-send-email 2.34.1 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: 8bit Content-Type: text/plain X-ClientProxiedBy: rnnvmail201.nvidia.com (10.129.68.8) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS2PEPF00003446:EE_|BY5PR12MB4289:EE_ X-MS-Office365-Filtering-Correlation-Id: bf70a471-aa28-4e85-fcc1-08de89d90c6c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|1800799024|36860700016|376014|82310400026|921020|18002099003|56012099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(7416014)(1800799024)(36860700016)(376014)(82310400026)(921020)(18002099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: c+DhNNHzaeFoQh+r72We0HpJ8nrdwdiIKNoH+BMghXJdSYT72fCOw+9jFtqzcLkzecMys/AYRZPQaSQPWXxInHDTBFbdLpFDabp7/r+Qt/jrIJZ+BCF0M9f7+L0G13uAsZQoNdC6FxHmf0kNJWBqIj7DvZ1rNHCyzYGUsPSWf4+y5aaX1Ti3rnohoX5ewxuOQ2qyWCaKbtJbPa0fv94qRR+8tDgtLFzohAiZhxLH68EKpJL3UQXvlfe3J3kFDVBsRurvsk40dPgUR6UlQ1P+J+CIaBhNWUNdB1yl3G6CsP288ZrsztLwXIM85/EtQ7sWRbJf0Uvtu+d0K+E5P76a344CDYebdxQoNif5n4hvx+ilhhUFK9dohNMEpZRLdBCENl4fX3mrz1Bv6FUtAcKLngoAG7d9quIYVTjkEtTMsv0+euNooOl/Trp8rQT4+nTQ X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Mar 2026 19:10:44.1049 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bf70a471-aa28-4e85-fcc1-08de89d90c6c X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS2PEPF00003446.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4289 This series[1] was originally posted by Vidya Sagar, and I have rebased it onto 6.19.0-rc6-next. I addressed review comments and split this into two series, one for fixes and the other is for enhancements(current). I verified these patches on Jetson AGX Orin(Tegra234 SoC). Disabling L1SS capability based on support-clkreq device tree property is moved to common DWC driver, so I reworked below patch to disable just L1.2 capability on Tegra234 SoC. - PCI: tegra194: Disable L1.2 capability of Tegra234 EP I added below new patches to tune the ASPM parameters, commit message of the patch has the details on the bug and fix. - PCI: tegra194: Use aspm-l1-entry-delay-ns DT property for L1 entrance latency - arm64: tegra: Add aspm-l1-entry-delay-ns to PCIe nodes I added more context in the commit message for below patch based on review comment in V3. - PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration I fixed review comments in many patches which are posted in v7. Manikanta Maddireddy (2): arm64: tegra: Add aspm-l1-entry-delay-ns to PCIe nodes PCI: tegra194: Use aspm-l1-entry-delay-ns DT property for L1 entrance latency Vidya Sagar (7): PCI: tegra194: Drive CLKREQ# signal low explicitly PCI: tegra194: Calibrate pipe to UPHY for Endpoint mode PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration PCI: tegra194: Enable DMA interrupt PCI: tegra194: Enable hardware hot reset mode in Endpoint dt-bindings: PCI: tegra194: Add monitor clock support PCI: tegra194: Add core monitor clock support .../bindings/pci/nvidia,tegra194-pcie-ep.yaml | 6 ++- .../bindings/pci/nvidia,tegra194-pcie.yaml | 6 ++- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 9 ++++ arch/arm64/boot/dts/nvidia/tegra234.dtsi | 16 ++++++ drivers/pci/controller/dwc/pcie-tegra194.c | 53 ++++++++++++++++++- 5 files changed, 87 insertions(+), 3 deletions(-) -- 2.34.1