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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 DS2PEPF0000343C.mail.protection.outlook.com (10.167.18.39) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7633.15 via Frontend Transport; Mon, 27 May 2024 05:11:49 +0000 Received: from BLR-L-DUGWEKAR.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 15.1.2507.35; Mon, 27 May 2024 00:11:45 -0500 From: Dhananjay Ugwekar To: , , , , CC: , , , , Dhananjay Ugwekar Subject: [PATCH] cpufreq: amd-pstate: Fix the inconsistency in max frequency units Date: Mon, 27 May 2024 10:41:28 +0530 Message-ID: <20240527051128.110091-1-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: 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: DS2PEPF0000343C:EE_|BL1PR12MB5802:EE_ X-MS-Office365-Filtering-Correlation-Id: 53ec33ed-97d3-4d22-524e-08dc7e0b833e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|376005|36860700004|1800799015|82310400017; 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)(376005)(36860700004)(1800799015)(82310400017);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 May 2024 05:11:49.0626 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 53ec33ed-97d3-4d22-524e-08dc7e0b833e 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: DS2PEPF0000343C.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5802 The nominal frequency in cpudata is maintained in MHz whereas all other frequencies are in KHz. This means we have to convert nominal frequency value to KHz before we do any interaction with other frequency values. In amd_pstate_set_boost(), this conversion from MHz to KHz is missed, fix that. Tested on a AMD Zen4 EPYC server Before: $ cat /sys/devices/system/cpu/cpufreq/policy*/scaling_max_freq | uniq 2151 $ cat /sys/devices/system/cpu/cpufreq/policy*/cpuinfo_min_freq | uniq 400000 $ cat /sys/devices/system/cpu/cpufreq/policy*/scaling_cur_freq | uniq 2151 409422 After: $ cat /sys/devices/system/cpu/cpufreq/policy*/scaling_max_freq | uniq 2151000 $ cat /sys/devices/system/cpu/cpufreq/policy*/cpuinfo_min_freq | uniq 400000 $ cat /sys/devices/system/cpu/cpufreq/policy*/scaling_cur_freq | uniq 2151000 1799527 Fixes: ec437d71db77 ("cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors") Signed-off-by: Dhananjay Ugwekar Acked-by: Mario Limonciello Acked-by: Gautham R. Shenoy Tested-by: Peter Jung --- drivers/cpufreq/amd-pstate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 1b7e82a0ad2e..cde3b91b4422 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -669,7 +669,7 @@ static int amd_pstate_set_boost(struct cpufreq_policy *policy, int state) if (state) policy->cpuinfo.max_freq = cpudata->max_freq; else - policy->cpuinfo.max_freq = cpudata->nominal_freq; + policy->cpuinfo.max_freq = cpudata->nominal_freq * 1000; policy->max = policy->cpuinfo.max_freq;