From patchwork Mon Oct 9 02:49:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Meng Li X-Patchwork-Id: 149817 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a888:0:b0:403:3b70:6f57 with SMTP id x8csp1621901vqo; Sun, 8 Oct 2023 19:51:23 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEOXyxRTlZBfctWKoFFwGePsRtOdojoOySTPVAmlpd0AiVbDsDvrzxwNNAOzpAL/j+GGf6E X-Received: by 2002:a05:6808:24c:b0:3ae:4d0:7f06 with SMTP id m12-20020a056808024c00b003ae04d07f06mr15006893oie.16.1696819883462; Sun, 08 Oct 2023 19:51:23 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1696819883; cv=pass; d=google.com; s=arc-20160816; b=j24ik8moJfOHsHT6zOOae1Dt9l4tR0iBk2x0JCHZSUADaLNMjiDQC1+Fu+xqQ/hzB6 LZSYdrN8gnYg2qb/9eqgs+yprAjl3a3kQiF46nAZfVMIE0Ijs+b2TWuCqaUWFYzUQPb3 ypwkk411xAU9d+Hu01Dce+5LefV027JI+x7eddShC1c5bg0URld13VbWSEk2tqVKO7jy OgNVKlJmeShircklKAsiG/w7H1Ivi34WKv75OoswTZJsBqpX3Ij1JlJxsT8ju+OAmMbW MLTs5T9zXi0R6ZorZccyvos2jjlNzXrBG7lz34Gm+7Z2Pj1nDqR2J4hDk+Y0C9ti2WMk yZBQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=hneoerr6yrWBbKcNzxSGDk6ANxsTr+qLx51Zn6rqXUA=; fh=Fn425yWZMkbODXnCm2qc3pvQdVfyAyBZxkXxf9YESEo=; b=afh6GBl3CLeDZnm4zTwlD9OFJQyMzM4tqntAiPyrhKBCu7vbae5Zsy81vYvH0Z+cf8 O7hLogtnXvgyqJCRSIQVgfLRNFIsxanGqQQJuxMJ7bzL5Heat5H+tU1ifjIW4/y+oggK J7qc1AIcX6QXPyc/5AAApPg35ZNY0tLf+icOoVYT1q75MjljAN3GUbPJNVrwgOG6enxU 0Bz1zFsbTUOgGbKayA+7v2M0G3G3uHdgqFw/z4Fy/p8kM4nDmKkCp3y1n01NAJBc4F+h a3rdopeLoM9I3uVrzXcz9NUS49VgNxDpku98JJyGX3vsnTZUDBfWaolVVim7VlTiwnBQ roCQ== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=kwyuyb65; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from snail.vger.email (snail.vger.email. [23.128.96.37]) by mx.google.com with ESMTPS id h1-20020a636c01000000b0058556a636dbsi8392751pgc.434.2023.10.08.19.51.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Oct 2023 19:51:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=kwyuyb65; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id BB9D780408CA; Sun, 8 Oct 2023 19:51:22 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345092AbjJICvO (ORCPT + 19 others); Sun, 8 Oct 2023 22:51:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345081AbjJICvG (ORCPT ); Sun, 8 Oct 2023 22:51:06 -0400 Received: from NAM11-BN8-obe.outbound.protection.outlook.com (mail-bn8nam11on2040.outbound.protection.outlook.com [40.107.236.40]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DE8EDB; Sun, 8 Oct 2023 19:51:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kcO88dDW9r5MdvwdyHWHoyK0MaDM/3qMjsWBqOmVOVocqanFi+aNFFjthqWGmXIKLWFN8Oa/YjqAFoACkJuBCH0drN93mt347js2EXCKDn7Q0BbSOcgaFaMf5BxFnmzppA7aM7G0E6hUVeCfZjz8Xkyng6VDasKWsewhe4Dyzc7YV3AElI6U1vv30OiLRJoSLjmVmup2COfiKTQva3hGROkEKjxLhrs/SPcQSRHjCRNQyDoO1ULLKmnLGrsjA/NUrphGqAULEPpzRH3jlyiuOTUBIw1KbljSLl5LSjk7wASyUa4+WivAqMEf/7buQ3pVCH1APqZOLNtXg3y7lMF5ug== 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=hneoerr6yrWBbKcNzxSGDk6ANxsTr+qLx51Zn6rqXUA=; b=my+ubAc0TU2ZdDfSJu4irmAI+Sot4f2LCyGyXdGy9tbgsMNMtiywBryNBtScRNm/0he11/3uI/XeAc8HQQzyXuWcGuxjBce8u7C6hBQoOMuh2HpZ9ujkupC1ykg74QJcaNaHZ05iCmgaXqenGjDAbBbs5e3Xs5V4/+WiAD8g6DFv/IEeDRNxYAu/NTweO/jA+H04XI+nbxLHtwgdWGE1BtH9extyDnAPfQpE4thmsP3sK6agPbwO+VhTlE8ZF55ahu0bEyHR1gF2FTrvG6kP9JtheF/KJGMtvRsTDsu66+W8ldQdJZ6SFFUNvwYxfMQtONy+LGfjmT/7JmMajTQQ4Q== 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=hneoerr6yrWBbKcNzxSGDk6ANxsTr+qLx51Zn6rqXUA=; b=kwyuyb65zt32N5f2FeNSLr6hVmqYwQeqV1SuD97TStcGaMW9pOqpAidspU3RAu5tuG3hMl8BT3/cBeGtfDp6F5fm0vwJiHtTQlGe48PffqW+iDbIhLraxzdWJe/slhf8WoeZlkdY2wN1FHkkk5pM4LTe45glpQNt+fcar3214fc= Received: from MN2PR20CA0019.namprd20.prod.outlook.com (2603:10b6:208:e8::32) by CH3PR12MB8483.namprd12.prod.outlook.com (2603:10b6:610:15c::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.35; Mon, 9 Oct 2023 02:50:59 +0000 Received: from BL6PEPF0001AB4E.namprd04.prod.outlook.com (2603:10b6:208:e8:cafe::fb) by MN2PR20CA0019.outlook.office365.com (2603:10b6:208:e8::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6863.36 via Frontend Transport; Mon, 9 Oct 2023 02:50:59 +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 BL6PEPF0001AB4E.mail.protection.outlook.com (10.167.242.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6838.14 via Frontend Transport; Mon, 9 Oct 2023 02:50:59 +0000 Received: from jasmine-meng.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; Sun, 8 Oct 2023 21:50:54 -0500 From: Meng Li To: "Rafael J . Wysocki" , Huang Rui CC: , , , , Shuah Khan , , "Nathan Fontenot" , Deepak Sharma , Alex Deucher , Mario Limonciello , Shimmer Huang , "Perry Yuan" , Xiaojian Du , Viresh Kumar , Borislav Petkov , Meng Li , Wyes Karny Subject: [PATCH V8 7/7] Documentation: introduce amd-pstate preferrd core mode kernel command line options Date: Mon, 9 Oct 2023 10:49:32 +0800 Message-ID: <20231009024932.2563622-8-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231009024932.2563622-1-li.meng@amd.com> References: <20231009024932.2563622-1-li.meng@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: BL6PEPF0001AB4E:EE_|CH3PR12MB8483:EE_ X-MS-Office365-Filtering-Correlation-Id: fb4bae77-f719-4c60-2102-08dbc8729148 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)(376002)(136003)(346002)(39860400002)(230922051799003)(82310400011)(451199024)(186009)(1800799009)(64100799003)(40470700004)(36840700001)(46966006)(336012)(1076003)(40460700003)(7696005)(478600001)(6666004)(26005)(86362001)(82740400003)(2906002)(356005)(16526019)(81166007)(36860700001)(316002)(110136005)(6636002)(83380400001)(2616005)(426003)(41300700001)(36756003)(8676002)(40480700001)(70586007)(70206006)(8936002)(47076005)(4326008)(5660300002)(54906003)(36900700001)(14943795004);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Oct 2023 02:50:59.1838 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fb4bae77-f719-4c60-2102-08dbc8729148 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: BL6PEPF0001AB4E.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8483 X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Sun, 08 Oct 2023 19:51:22 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1779244606092067359 X-GMAIL-MSGID: 1779244606092067359 amd-pstate driver support enable/disable preferred core. Default enabled on platforms supporting amd-pstate preferred core. Disable amd-pstate preferred core with "amd_prefcore=disable" added to the kernel command line. Signed-off-by: Meng Li Reviewed-by: Mario Limonciello Reviewed-by: Wyes Karny Reviewed-by: Huang Rui --- Documentation/admin-guide/kernel-parameters.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0a1731a0f0ef..e35b795aa8aa 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -363,6 +363,11 @@ selects a performance level in this range and appropriate to the current workload. + amd_prefcore= + [X86] + disable + Disable amd-pstate preferred core. + amijoy.map= [HW,JOY] Amiga joystick support Map of devices attached to JOY0DAT and JOY1DAT Format: ,