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Wysocki" Subject: [PATCH v3 11/13] cpufreq: amd_pstate: update transition delay time to 1ms Date: Tue, 12 Jul 2022 11:42:42 -0400 Message-ID: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 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: 058b4a92-0143-4945-e773-08da641d3094 X-MS-TrafficTypeDiagnostic: MW3PR12MB4409:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: UFjL2xzPP3piniY8C9B0fPuXKEQLjgDvISiacVzwAFcLivI3El9ptBFxAimF6Tqs3aTv2DtfgqMbCOJykj9YjfdN/LXczT5ItfOvciV7S063Zc0rVSxz5BMESq3xu0f3WzvJemCVa3aBQDRpVZpzsLBKDPHrd38a3jCTuHM7QE+iRNLZ4p7qjpWEHYxsQcQtvkGaZGtPb18gg9bkNB1rBFtB/W530itEwVfp9Kne2375aQoUFcGCbWNu1NwZay+Et1QahhZsBKf67CGoQ5tnyDeC3lqKQPfjC74PllNbOeiHmUCyDVJrgS3dd8M5ajFQe1lfYJAQYIJUrt9mf6igob+jNUylKL8BjjYB5NmQG62NYSr7aIwG/BRSWaCwfrrjePhXwLdVCL6YKomeoCOMXoIQZTSsk3sYWDv3Mt9dv9XmJZEUdw2vZDtNvcIXj5PU///UolVx1VqVf+6dPTA6sEsHzVFFRSkRloWcTFogqvfNGvccQq75cyyVUcH3VFnCM8XSg4mD2Rr3O4xmhH7mdj0nkGV8R1HDhZOs5KBTfj4VhgZqEA5PJmM5Rsx6bPybG3z6aWqe1hI4GLYLhlvFzRZuC8aExeNeWkX24ak0M28Ylp7Re0UXy6DFawUk0SrC7Q2HYt/9a8JLa/dB9oAgjrG209Vf3HRrQ/Odq3CJoJAgcmDLf5Uq4L3U2QDLnB1Yj8hd3roozIv8+jThy0e9NZG69TCTq+ya8IqFGhZdI2hQlnjzjz2c3bs8en2UF1YiCO9YKNiwnzwJBuJJqabHf+iHD2IhFG43yQ1xfYxPsG/3VfBlHxlRcJmFz1crcxRobxPfI0e0ljJA4vJOy3f5XxB9h58B7yb8fWf1bykY2lk= 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)(39860400002)(376002)(346002)(396003)(136003)(40470700004)(36840700001)(46966006)(82310400005)(36756003)(316002)(478600001)(2616005)(15650500001)(40460700003)(16526019)(26005)(186003)(6636002)(110136005)(54906003)(356005)(70586007)(4744005)(83380400001)(36860700001)(6666004)(47076005)(81166007)(4326008)(41300700001)(2906002)(426003)(8936002)(40480700001)(86362001)(5660300002)(7696005)(336012)(82740400003)(8676002)(70206006)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jul 2022 15:42:55.7459 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 058b4a92-0143-4945-e773-08da641d3094 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: BN8NAM11FT065.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW3PR12MB4409 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Update transition delay time to 1ms, in the AMD CPU autonomous mode and non-autonomous mode, CPPC firmware will decide frequency at 1ms timescale based on the workload utilization. Signed-off-by: Perry Yuan Signed-off-by: Su Jinzhou Acked-by: Viresh Kumar --- 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 a9918728948a..83570acecc78 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -42,7 +42,7 @@ #include "amd-pstate-trace.h" #define AMD_PSTATE_TRANSITION_LATENCY 20000 -#define AMD_PSTATE_TRANSITION_DELAY 500 +#define AMD_PSTATE_TRANSITION_DELAY 1000 /* * TODO: We need more time to fine tune processors with shared memory solution