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Wysocki" , , CC: , , , , , , , , Perry Yuan Subject: [PATCH 09/12] cpufreq: amd-pstate: update pstate frequency transition delay time Date: Thu, 7 Jul 2022 13:00:49 -0400 Message-ID: <20220707170049.216556-1-Perry.Yuan@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] 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-Office365-Filtering-Correlation-Id: cd5829de-4770-4ce5-15d6-08da603a490b X-MS-TrafficTypeDiagnostic: MWHPR1201MB0174:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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:(13230016)(4636009)(376002)(136003)(396003)(39860400002)(346002)(46966006)(36840700001)(40470700004)(6666004)(2906002)(41300700001)(86362001)(8676002)(4326008)(7696005)(5660300002)(4744005)(478600001)(70206006)(40460700003)(70586007)(316002)(8936002)(82310400005)(186003)(16526019)(36860700001)(34020700004)(36756003)(2616005)(40480700001)(54906003)(1076003)(110136005)(336012)(83380400001)(426003)(356005)(47076005)(81166007)(26005)(82740400003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jul 2022 17:01:07.5554 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cd5829de-4770-4ce5-15d6-08da603a490b 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: BN8NAM11FT031.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1201MB0174 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org change the default transition latency to be 20ms that is more reasonable transition delay for AMD processors. Signed-off-by: Perry Yuan --- 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 173a45cf292a..b54b3b559993 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -41,7 +41,7 @@ #include #include "amd-pstate-trace.h" -#define AMD_PSTATE_TRANSITION_LATENCY 0x20000 +#define AMD_PSTATE_TRANSITION_LATENCY 20000 #define AMD_PSTATE_TRANSITION_DELAY 500 /* -- 2.25.1