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Shenoy" , "Mario Limonciello" , Perry Yuan , , , , , "Shyam Sundar S K" Subject: [PATCH v2 12/13] cpufreq/amd-pstate: Disable preferred cores on designs with workload classification Date: Thu, 10 Oct 2024 14:37:04 -0500 Message-ID: <20241010193705.10362-13-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241010193705.10362-1-mario.limonciello@amd.com> References: <20241010193705.10362-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: SA2PEPF000015CA:EE_|BL1PR12MB5873:EE_ X-MS-Office365-Filtering-Correlation-Id: f35635fe-6677-4975-7931-08dce96308df X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|36860700013|1800799024; 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:(13230040)(82310400026)(376014)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Oct 2024 19:37:53.8727 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f35635fe-6677-4975-7931-08dce96308df 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: SA2PEPF000015CA.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5873 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. Signed-off-by: Mario Limonciello --- drivers/cpufreq/amd-pstate.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 30415c30d8b4..0751579ef06c 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -780,6 +780,10 @@ static void amd_pstate_init_prefcore(struct amd_cpudata *cpudata) /* user disabled or not detected */ if (!amd_pstate_prefcore) return; + /* should use amd-hfi instead */ + if (boot_cpu_has(X86_FEATURE_WORKLOAD_CLASS) && + IS_ENABLED(CONFIG_AMD_HFI)) + return; cpudata->hw_prefcore = true;