From patchwork Mon Aug 21 06:57:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Basavaraj Natikar X-Patchwork-Id: 716043 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98022EE49A0 for ; Mon, 21 Aug 2023 06:58:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233545AbjHUG6S (ORCPT ); Mon, 21 Aug 2023 02:58:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229666AbjHUG6R (ORCPT ); Mon, 21 Aug 2023 02:58:17 -0400 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2064.outbound.protection.outlook.com [40.107.243.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD509AC for ; Sun, 20 Aug 2023 23:58:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kO/9K6E0MQMr2j/a4EOSz6zFrMOg1+cdtkk0soRPjhJ7d1/xY7pc6gTlYlzgnm940aBkN7GNlrZ9e7g/tzceV2WhUxabjrCp4oUQo7hKMnwClq0VE1EwdszqwzoJ6FR4cY61CNt1j4znEi23AR5AXuyzYyqOKq2GwTonCmL2Jkd2lqpP5WG+ktTTUjHmUZrVNs31uTw4eHAUhKuIFavRtBwoW4TSzyFWv+ZXJ4gAhgylqj9Diij909MY2WNTZ/UJJloupm45eNmS7Ki5FjMuTgkpYxUtEopctca1P7bUTwN7SAJ16WjS9cdgX7s/VPIS7rTC1C0cYXbjtl77XRKA8g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=jx4aATHBfcRKQx3xwP5Nl2JeFZ3fXDWaWSaUmFL4s64=; b=AH3VgxXeVqioebM1zfwiyRQvZmCJ5oNb7Zru/WtwvoskJcUoG2doDIb7LygkLtM9yOsdlrxtYdFt+HhStEDfUjw1raBkFsyzU9ViyMTh0AIVFbwqg7+vcQESOnW3fwQkF4FviVjS/hhQyirAIkQ0baNrRQV0G3rc/v+AECcVR6J5ffgzfpb4ZgTyrtHkfYDAyifKJCp/k4/hWicBSen4f3oI7Itsn8Ylfri930+fXS8NEyh+PSrDrpnXLoHpHzZnUjrtf8SLXv0CnU+KoAlBjVvyQbPZC9s/a+IpYO07DePJkGxR/95sl7B4y9MHItuPT9s0Ui1Ya7e4EVGNvqDUxQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=intel.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jx4aATHBfcRKQx3xwP5Nl2JeFZ3fXDWaWSaUmFL4s64=; b=nrDnSXDJ4XF/9xL3OnnvItDE/dFv8vx5+NFLYiZjtfog+nWhjkCmDIp3mGQKkw/pRJdat5erywObl2HHMQ5Geh5uhFNIfx4PIRcQNQSge2oVf/6V6tc2WsaQ9Xc4Rq15/b9eBOWq/Oj85WVNQfbYybIWUdKy9N91Eab90k3hoFE= Received: from SN6PR16CA0066.namprd16.prod.outlook.com (2603:10b6:805:ca::43) by CH0PR12MB5234.namprd12.prod.outlook.com (2603:10b6:610:d1::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6699.24; Mon, 21 Aug 2023 06:58:09 +0000 Received: from SA2PEPF000015C6.namprd03.prod.outlook.com (2603:10b6:805:ca:cafe::6) by SN6PR16CA0066.outlook.office365.com (2603:10b6:805:ca::43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6699.20 via Frontend Transport; Mon, 21 Aug 2023 06:58:08 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by SA2PEPF000015C6.mail.protection.outlook.com (10.167.241.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6699.15 via Frontend Transport; Mon, 21 Aug 2023 06:58:08 +0000 Received: from jatayu.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 21 Aug 2023 01:58:05 -0500 From: Basavaraj Natikar To: , , , , CC: Basavaraj Natikar Subject: [PATCH 1/2] xhci: Loosen RPM as default policy to cover xHC 1.1 as well Date: Mon, 21 Aug 2023 12:27:41 +0530 Message-ID: <20230821065742.2924681-2-Basavaraj.Natikar@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230821065742.2924681-1-Basavaraj.Natikar@amd.com> References: <20230821065742.2924681-1-Basavaraj.Natikar@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF000015C6:EE_|CH0PR12MB5234:EE_ X-MS-Office365-Filtering-Correlation-Id: 8dc96e51-22b5-4c87-f31f-08dba213f9e2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(4636009)(346002)(39860400002)(136003)(396003)(376002)(82310400011)(451199024)(186009)(1800799009)(40470700004)(46966006)(36840700001)(2906002)(83380400001)(7696005)(40480700001)(5660300002)(336012)(426003)(26005)(16526019)(86362001)(47076005)(36860700001)(8676002)(2616005)(8936002)(4326008)(70206006)(316002)(70586007)(110136005)(966005)(478600001)(82740400003)(356005)(81166007)(6666004)(36756003)(40460700003)(41300700001)(1076003)(2101003)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Aug 2023 06:58:08.2910 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8dc96e51-22b5-4c87-f31f-08dba213f9e2 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF000015C6.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR12MB5234 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The USB host controller (1022:43f7) isn't going into PCI D3 by default without anything connected. This is because the policy that was introduced by commit a611bf473d1f ("xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices") only covered 1.2 or later. The 1.1 specification also has the same requirement as the 1.2 specification for D3 support. So expand the runtime PM as default policy to 1.1 devices as well. Fixes: a611bf473d1f ("xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices") Link: https://composter.com.ua/documents/xHCI_Specification_for_USB.pdf Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Signed-off-by: Basavaraj Natikar --- drivers/usb/host/xhci-pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index b9ae5c2a2527..c908a80ef436 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -533,7 +533,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) } /* xHC spec requires PCI devices to support D3hot and D3cold */ - if (xhci->hci_version >= 0x120) + if (xhci->hci_version >= 0x110) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; if (xhci->quirks & XHCI_RESET_ON_RESUME) From patchwork Mon Aug 21 06:57:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Basavaraj Natikar X-Patchwork-Id: 715660 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A9BAEE49A5 for ; Mon, 21 Aug 2023 06:58:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233539AbjHUG6R (ORCPT ); Mon, 21 Aug 2023 02:58:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229666AbjHUG6R (ORCPT ); Mon, 21 Aug 2023 02:58:17 -0400 Received: from NAM02-BN1-obe.outbound.protection.outlook.com (mail-bn1nam02on2067.outbound.protection.outlook.com [40.107.212.67]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D10CAF for ; Sun, 20 Aug 2023 23:58:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=dJc8zPVSavaLujMR4YTdTU8p8cMuE5aYrcajHxtk34C83Rpz8rlYtlVIS5pTs+fPqPvm/SCGqdsGwNHe7NPDKiHcSF6EvTYYcrtsYA03KWCqC0ca0Y8oA7PaVhjsQRVnPSts8OMCmEmbLAaMX/NMXo8tNo0Gfrgm3B9QlbTzGI8BFtbE+gBp70NXW4V24DqQQbTtwWPKJ8ZEItpmjOScbGFfhKxwPJLCYh4Z1TUFs9OQWCpJT9imkZ2s2zp+XPzPSkukVFYDDCyq93nikKyIPXjBcawF9/GjPfsxXUWExAZ7KHYW7Fyq8UGRalhiomfsGPlrBUXbQ4sT+DzbBesHkg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=M+r2rRH2y85uBG2TItXqkZ2NJ6OjpbWhdY6e/3r7ZwY=; b=RuNE8Du+AhmbjwdEFXXkEgZMoPDYajb823pTwOBUjsrmYLjxuPu5b0hZLC0+Wbt+vOgiZ//Y11CFq3HBTCsq1yTQRt4LKr6LQX+bU+lJZZ85cY4YgRwtyEKKic5kECWpMeVHSH81Zvf6CF3uOE08q76m2OGTJECiLV/hfdoVVkPLzP1qz1siqcoa6hYNemj/CkdZQ+UWiZwrHG4wGQ2GRn40aWAC7DJj7jEPqc9znhZXcjvFhBOazhEu50jUk/q1cu0TaE8pq4SCO6YabA1exsOV5HLC3a4eOTinMqno76tULBkh5kYbObI7PhpDGy3zgINwANedf+nGXQdTChPwTg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=intel.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=M+r2rRH2y85uBG2TItXqkZ2NJ6OjpbWhdY6e/3r7ZwY=; b=Myl+3RI+B0mBFxcLb4L3znVJ5oW80lctkrzyh+w0lbiLQup32kCVwkjKGjVCpTrVsUcnnIk1ELSBYT2sBiSbaRs0dJx+SkqPQxZyQAA50B3rq01QlsxjSxRXCmGjm5dBW8fW/Jhpl0hpBKmQH2x7stuErQA7bAWA7FEkjn8KY3I= Received: from PH8PR07CA0003.namprd07.prod.outlook.com (2603:10b6:510:2cd::17) by DS0PR12MB8245.namprd12.prod.outlook.com (2603:10b6:8:f2::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6699.20; Mon, 21 Aug 2023 06:58:11 +0000 Received: from SA2PEPF000015C7.namprd03.prod.outlook.com (2603:10b6:510:2cd:cafe::f0) by PH8PR07CA0003.outlook.office365.com (2603:10b6:510:2cd::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6699.20 via Frontend Transport; Mon, 21 Aug 2023 06:58:10 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by SA2PEPF000015C7.mail.protection.outlook.com (10.167.241.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6699.14 via Frontend Transport; Mon, 21 Aug 2023 06:58:10 +0000 Received: from jatayu.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 21 Aug 2023 01:58:08 -0500 From: Basavaraj Natikar To: , , , , CC: Basavaraj Natikar Subject: [PATCH 2/2] xhci: Enable RPM on controllers that support low-power states Date: Mon, 21 Aug 2023 12:27:42 +0530 Message-ID: <20230821065742.2924681-3-Basavaraj.Natikar@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230821065742.2924681-1-Basavaraj.Natikar@amd.com> References: <20230821065742.2924681-1-Basavaraj.Natikar@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF000015C7:EE_|DS0PR12MB8245:EE_ X-MS-Office365-Filtering-Correlation-Id: a0e2efec-34b4-4f20-f296-08dba213fb3d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(4636009)(396003)(136003)(346002)(376002)(39860400002)(1800799009)(186009)(82310400011)(451199024)(40470700004)(46966006)(36840700001)(6666004)(7696005)(40460700003)(36860700001)(16526019)(426003)(336012)(40480700001)(1076003)(83380400001)(36756003)(26005)(81166007)(47076005)(82740400003)(356005)(2616005)(41300700001)(2906002)(316002)(70206006)(110136005)(86362001)(5660300002)(70586007)(8676002)(478600001)(4326008)(8936002)(2101003)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Aug 2023 06:58:10.5495 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a0e2efec-34b4-4f20-f296-08dba213fb3d X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF000015C7.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8245 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Use the low-power states of the underlying platform to enable runtime PM. If the platform doesn't support runtime D3, then enabling default RPM will result in the controller malfunctioning, as in the case of hotplug devices not being detected because of a failed interrupt generation. Cc: Mario Limonciello Signed-off-by: Basavaraj Natikar --- drivers/usb/host/xhci-pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index c908a80ef436..1bb5b510c5ba 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -693,7 +693,9 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) /* USB-2 and USB-3 roothubs initialized, allow runtime pm suspend */ pm_runtime_put_noidle(&dev->dev); - if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) + if (pci_choose_state(dev, PMSG_SUSPEND) == PCI_D0) + pm_runtime_forbid(&dev->dev); + else if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW) pm_runtime_allow(&dev->dev); dma_set_max_seg_size(&dev->dev, UINT_MAX);