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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 SA2PEPF0000150B.mail.protection.outlook.com (10.167.242.43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8093.14 via Frontend Transport; Wed, 23 Oct 2024 10:21:23 +0000 Received: from shatadru.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 15.1.2507.39; Wed, 23 Oct 2024 05:21:19 -0500 From: Dhananjay Ugwekar To: , , , , CC: , , "Dhananjay Ugwekar" Subject: [PATCH 0/4] cpufreq/amd-pstate:Cleanups Date: Wed, 23 Oct 2024 10:21:04 +0000 Message-ID: <20241023102108.5980-1-Dhananjay.Ugwekar@amd.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF0000150B:EE_|DS0PR12MB7772:EE_ X-MS-Office365-Filtering-Correlation-Id: b8600f3c-4089-4933-107a-08dcf34c7247 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|36860700013|82310400026|1800799024; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Oct 2024 10:21:23.9154 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b8600f3c-4089-4933-107a-08dcf34c7247 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: SA2PEPF0000150B.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7772 Explicitly rename functions that enable CPPC as *_cppc_*. Do not clear MSR_AMD_CPPC_ENABLE as it is a set-once register, i.e. it cannot be cleared. Propagate the epp value to shared mem in the reenable function. Replicate the offline flow of MSR based systems in shared mem systems. Dhananjay Ugwekar (4): cpufreq/amd-pstate: Rename functions that enable CPPC cpufreq/amd-pstate: Do not attempt to clear MSR_AMD_CPPC_ENABLE cpufreq/amd-pstate: Call cppc_set_epp_perf in the reenable function cpufreq/amd-pstate: Align offline flow of shared memory and MSR based systems drivers/cpufreq/amd-pstate.c | 39 ++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 15 deletions(-) Reviewed-by: Mario Limonciello