Message ID | 20241209185248.16301-8-mario.limonciello@amd.com (mailing list archive) |
---|---|
State | New |
Delegated to: | Mario Limonciello |
Headers | show
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Shenoy" <gautham.shenoy@amd.com> CC: Perry Yuan <perry.yuan@amd.com>, <linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>, Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>, Mario Limonciello <mario.limonciello@amd.com> Subject: [PATCH v3 07/15] cpufreq/amd-pstate: Only update the cached value in msr_set_epp() on success Date: Mon, 9 Dec 2024 12:52:40 -0600 Message-ID: <20241209185248.16301-8-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241209185248.16301-1-mario.limonciello@amd.com> References: <20241209185248.16301-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: <linux-pm.vger.kernel.org> List-Subscribe: <mailto:linux-pm+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-pm+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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: CH1PEPF0000A348:EE_|IA1PR12MB8465:EE_ X-MS-Office365-Filtering-Correlation-Id: 827873a5-6d8f-46ed-8059-08dd1882bcc0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|1800799024|376014; X-Microsoft-Antispam-Message-Info: dVG0vewoa1qE1UznaH9cq5mjy5MrWPb2S8jpWaKe+QFApfDk/DHvB/xZzjtVEZN203nTLBuLK+cCNmUhAEOpVfOVanuk73XpAQ+I4xQOwmZ4aPYGsldoXZ4qTLQ+CAszMrZX6/LWGtrkhzmAygQ+DMMi62xA7sSR+YO115ZuqYfmopgPagc2utXhqlU2JJ14JlqAUAaeLQjtHZFptBzQSODRWTvg1RjA4rOGc1Ojcns0+IuzveKDZQaIMzvgWIKiwFZL0RljUDQ3xJanKxXZL+5qMH6pdetFqwI6Fm3GnWmKISc4DJdCeSh4zlg3cTksk8HeMi3VEyU3Hwq5KzKJi9G73zStHqQ8dsvKFsEojx/YlV03QAsee8pZgR938KEEcNHfHrVl/irXJlY7ANlHmwM2P7A3NSFWE9WUHYHgiXWsdqLmYf1Bq8sig4ZUJIrVQL3cF4LIAW9RJSrWAET2MajJb2CULfOKJlM5fsONdMTPhsbBDVIa/Z41u7gu1JHioAU5+0A0iEGelu4GBO1/jbv6rzcVviuAKUk6DwyExj7URmukLFitnmpp8y1gprV/x+FnFZDOUk9G1msx92SkZUZBoC7N2eSOswrBBJ5233u/5n1wStGayR+fsIQHMas56CufQeSzd9atvy6xN+IaIWD0XcMlwFj2EddAIORA/GhJ8oKpng4keCbdjq7O6+ReSAviwRjRFib77usNv9K0H8Qi7vKYpkEc2LfxDjK4L4/sNdK6L+Np9dhP5eK8epHn/FObrbcbrO9biX+Kuq3cwW9Vo3V8jcKHVxdTd4KmcBzn5CWMJnxgOhSA4XMbF6a9tJuTfxwxs7KY1bUyWG4TfRAHcl86RMjvQGy+RWR07Xv8DS5YheRMcyLSEmOoevUdAMnuB0sUzDsJ4NkQ++vS1N5UErPk7JWZNa9Ja0BT3I+gUNbvI57yYDW6htv/nzJL6QTTur8GiN9kqraO+43SNhQ9CHbAbPm/pwI8YwEPztUWWhWQDG+A9WldMVwdVXUrPysQcorDbL1XBOIq58eFQ7FqhsFRV/IiN9w1Re8sIiHbEMH3E0HvGNKyz8SIZUGv5BkZRH1SXTsSZ0UqCvYDH4xsch5dxGYzsskNnZn4EZKYBRbG3o3OtwC6LrnXwEKN2IPFR79ACPuSxitkXKemdOPps/ihzrZIjrQsOR7eA+wirrk7MHCUdFXSmK0cR08waI76lvA8586gTD40ViXBZEDYN9ipaVvR181Ea0jSkbxqNK/FM9BKjrHeXZiTZgHH0NK6oWAYc/EdciVryxuheDrQC0UlJaB4qUQEjBxvYWjGVMoKmyHriav9bofFiaWgn/xTa4J1OUm8ATMxe2MrzEx1QNWrR36Kwij2bcqDXdkmeYGsus/uMRGj+YeUI2mcDyjJphW4GVii9mYIlGj1BrrIUr/mGsdzdBe1xjXQOFiuBw64MsmZpg4TEgnl/iSj 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)(36860700013)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Dec 2024 18:53:14.7244 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 827873a5-6d8f-46ed-8059-08dd1882bcc0 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: CH1PEPF0000A348.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB8465 |
Series |
amd-pstate fixes and improvements for 6.14
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expand
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diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 0ed04316a8d80..263acce2f4b0c 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -278,11 +278,15 @@ static int msr_set_epp(struct amd_cpudata *cpudata, u32 epp) value &= ~AMD_CPPC_EPP_PERF_MASK; value |= FIELD_PREP(AMD_CPPC_EPP_PERF_MASK, epp); - WRITE_ONCE(cpudata->cppc_req_cached, value); ret = wrmsrl_on_cpu(cpudata->cpu, MSR_AMD_CPPC_REQ, value); - if (!ret) - cpudata->epp_cached = epp; + if (ret) { + pr_err("failed to set energy perf value (%d)\n", ret); + return ret; + } + + cpudata->epp_cached = epp; + WRITE_ONCE(cpudata->cppc_req_cached, value); return ret; }