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Wysocki" , Huang Rui CC: , , , , Shuah Khan , , "Nathan Fontenot" , Deepak Sharma , Alex Deucher , Mario Limonciello , Shimmer Huang , "Perry Yuan" , Xiaojian Du , Viresh Kumar , Borislav Petkov , "Oleksandr Natalenko" , Meng Li , Wyes Karny Subject: [RESEND PATCH V9 7/7] Documentation: introduce amd-pstate preferrd core mode kernel command line options Date: Fri, 13 Oct 2023 11:31:18 +0800 Message-ID: <20231013033118.3759311-8-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231013033118.3759311-1-li.meng@amd.com> References: <20231013033118.3759311-1-li.meng@amd.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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: CO1PEPF000042AD:EE_|PH7PR12MB6444:EE_ X-MS-Office365-Filtering-Correlation-Id: a3f75f42-f6b0-4d38-58b5-08dbcb9d0814 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)(136003)(396003)(39860400002)(376002)(230922051799003)(64100799003)(451199024)(82310400011)(186009)(1800799009)(36840700001)(46966006)(40470700004)(26005)(2616005)(47076005)(16526019)(478600001)(1076003)(7696005)(83380400001)(40480700001)(86362001)(40460700003)(6666004)(41300700001)(36756003)(426003)(336012)(4326008)(8936002)(8676002)(110136005)(54906003)(6636002)(316002)(70206006)(70586007)(2906002)(7416002)(5660300002)(81166007)(36860700001)(356005)(82740400003)(36900700001)(14943795004); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Oct 2023 03:32:30.7506 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a3f75f42-f6b0-4d38-58b5-08dbcb9d0814 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: CO1PEPF000042AD.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6444 X-Spam-Status: No, score=-1.1 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 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 Tested-by: Oleksandr Natalenko --- 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: ,