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Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" Subject: [PATCH v5 11/13] cpufreq/amd-pstate: Disable preferred cores on designs with workload classification Date: Sun, 27 Oct 2024 21:02:49 -0500 Message-ID: <20241028020251.8085-12-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241028020251.8085-1-mario.limonciello@amd.com> References: <20241028020251.8085-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: BL02EPF00021F6B:EE_|PH0PR12MB7010:EE_ X-MS-Office365-Filtering-Correlation-Id: 7f534a9a-f145-413a-9674-08dcf6f4b4db X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|82310400026|1800799024|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?vT1MXzHkWmor+pWqGGZWfIerLGGikuccs5+5hrRiQO549H1WD7krVT+SpVte?= =?us-ascii?Q?npBh5RSMNe7XlJOiXjaQ/LyOoRsFgNtDzzY7EDiekXDaePjEMPfpCvoQusH9?= =?us-ascii?Q?ieHg+OGbLo+IjYBrVS4xkBRdZckRxf+zrTOlFAkPN68ETKV1xcXl2e/z8u5k?= =?us-ascii?Q?bYPXGPmau0jnNWX//Wzapwz1HzcCGLIi3ahhERnhzHzT87FiTjwAFtkt9jJw?= =?us-ascii?Q?HEbMJJBZe/ri0hORacEm4DFimfvbjKz3ySbCmNGaFfBT6flcRJtww/ALM6et?= =?us-ascii?Q?q/I5TSGyTXwImaD1nD4bFT595CGLaDO9YwKaZEX1kU2W7z4VjhdKDmWtWVa5?= =?us-ascii?Q?n/vHaV8TGln0h5Qeye3DRTk5SETapGFilDgfGiMoujqU+XTZ/UrxHfGDh+Ir?= =?us-ascii?Q?r+6k1Bbof/qRYhC8KgEHq/4NMSDc3+BmoCfHKU7xZxox8mPtTU+1Je4xmb3t?= =?us-ascii?Q?0baPwcrTyQrOrSvDtBjLs30lqwBSXElJvPxChJHVEPPUqeP7l2bRU6zejlTW?= =?us-ascii?Q?8MoWPTPo2tHNTnbWEehCpTwEPJ0eG/XtwqM406chCAwmKz/r9v3hBfBEptPi?= =?us-ascii?Q?OVwOUQ9xs/ib9zC9vSo52oyQxPv8a0S5uQPdK9GI35g1DB8w9iQb59maj24/?= =?us-ascii?Q?7F3NOBPvsqxRKqKd9G17OuYLNTQoIqC8BfExhKb2+SQw6xZxKsWWk9r++EsM?= =?us-ascii?Q?wIyhbiKfCW9ORzwTpLx05rRLa1IciSCYIWoAFUD/wKZ9Ui3WeCQJkzuTdnWG?= =?us-ascii?Q?1+Zqo7ukO/bSPDqx+e7C20Y5mfPm+rr1fF6oNWHF73EzLCsdogJp/HNfuu4M?= =?us-ascii?Q?Crfd1HMcqfbSqvRRbc7P/7/Y0Iubjx6ZGzNLUg1wdgEVtwyGOzsD1jEVIz6w?= =?us-ascii?Q?pbUGE4wRnqchLNwTezfV/9/Z8bGJ2LlIMAIfQzVcG1pWi7n6qX3wjlAIrA6V?= =?us-ascii?Q?bUahQMkSxidy36UQZ22lUhrAwTRWW8i5/YnnnP4JfS07ozgydIAcxTCV+unZ?= =?us-ascii?Q?QFik3yfDPzsqAzbvqhDt+wsPjY5eJozSgMwpCEt0w5poOdfrgojhojiCgt6d?= =?us-ascii?Q?/GpEIQ3fDRIIgvWXMJmOxmBC7xvIZsb8oYSCpDdsDnc/QOmWXoKtISUAjQck?= =?us-ascii?Q?tkjj99zx7jd/CsPPDU1lBN9En1QgK8BYeApBPFC6vudAnB4WhIYxgtoO903J?= =?us-ascii?Q?FTsMuA49Tv/eca8hPVYEUWX/DnjW5dfS/xx0BP8pCTk6dB++h7amXSOqRZvA?= =?us-ascii?Q?1lVxK2MlASoNo+BK4RfMyjd1a8BLiclERG5x9OTqCJD69Zo378E8RzJlpKDh?= =?us-ascii?Q?uWhwtalMJF1BaYPpJvX93GVIJCTdaL3AqhWKvFzS0mV/3ajXiO0Ooz17paf7?= =?us-ascii?Q?5o5fPG5quRNVeizXyUq4Gr+LeB4gnZTZLtzQxjiXGdmXbBwG3w=3D=3D?= 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:(13230040)(36860700013)(82310400026)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2024 02:03:24.5729 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7f534a9a-f145-413a-9674-08dcf6f4b4db 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: BL02EPF00021F6B.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB7010 Content-Type: text/plain; charset="utf-8" On designs that have workload classification, it's preferred that the amd-hfi driver is used to provide hints to the scheduler of which cores to use instead of the amd-pstate driver. Reviewed-by: Gautham R. Shenoy Signed-off-by: Mario Limonciello --- drivers/cpufreq/amd-pstate.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 32ddbf37a9f0a..c60cc84866982 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -780,6 +780,12 @@ static void amd_pstate_init_prefcore(struct amd_cpudat= a *cpudata) /* user disabled or not detected */ if (!amd_pstate_prefcore) return; + /* should use amd-hfi instead */ + if (boot_cpu_has(X86_FEATURE_AMD_WORKLOAD_CLASS) && + IS_ENABLED(CONFIG_AMD_HFI)) { + amd_pstate_prefcore =3D false; + return; + } =20 cpudata->hw_prefcore =3D true; =20 --=20 2.43.0