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Wysocki" , Nathan Fontenot , Deepak Sharma , "Alex Deucher" , Mario Limonciello , Jinzhou Su , Perry Yuan , Xiaojian Du , Viresh Kumar , Borislav Petkov , , Meng Li Subject: [Suggested-by:Shuah Khan Patch V2 1/1] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT Date: Mon, 5 Sep 2022 15:14:18 +0800 Message-ID: <20220905071418.1518338-2-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220905071418.1518338-1-li.meng@amd.com> References: <20220905071418.1518338-1-li.meng@amd.com> 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: 734930c7-4f5e-459e-a7dc-08da8f0e7698 X-MS-TrafficTypeDiagnostic: BY5PR12MB4241: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)(346002)(396003)(136003)(39850400004)(376002)(36840700001)(46966006)(40470700004)(82740400003)(83380400001)(36860700001)(40460700003)(6666004)(5660300002)(26005)(47076005)(36756003)(16526019)(426003)(336012)(2616005)(186003)(1076003)(7696005)(2906002)(82310400005)(8936002)(40480700001)(86362001)(81166007)(54906003)(110136005)(356005)(41300700001)(478600001)(316002)(8676002)(4326008)(70206006)(70586007)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Sep 2022 07:15:50.6345 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 734930c7-4f5e-459e-a7dc-08da8f0e7698 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: CO1NAM11FT068.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4241 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This kernel module is used for testing. It's safe to say M here. It can also be built-in without X86_AMD_PSTATE enabled. Currently, only tests for amd-pstate are supported. If X86_AMD_PSTATE is set disabled, it can tell the users test can only run on amd-pstate driver, please set X86_AMD_PSTATE enabled. In the future, comparison tests will be added. It can set amd-pstate disabled and set acpi-cpufreq enabled to run test cases, then compare the test results. Signed-off-by: Meng Li --- drivers/cpufreq/Kconfig.x86 | 12 +++++++----- tools/testing/selftests/amd-pstate/amd-pstate-ut.sh | 1 + 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index fd1582716c58..310779b07daf 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -58,11 +58,13 @@ config X86_AMD_PSTATE_UT help This kernel module is used for testing. It's safe to say M here. - It can be modprobed even without amd-pstate module. - When the comparison test is performed, it can load other module - like acpi-cpufreq to test cases, then compare the test results. - When only the test for amd-pstate is performed, it can tell the - users they loaded a wrong module like acpi-cpufreq. + It can also be built-in without X86_AMD_PSTATE enabled. + Currently, only tests for amd-pstate are supported. If X86_AMD_PSTATE + is set disabled, it can tell the users test can only run on amd-pstate + driver, please set X86_AMD_PSTATE enabled. + In the future, comparison tests will be added. It can set amd-pstate + disabled and set acpi-cpufreq enabled to run test cases, then compare + the test results. config X86_ACPI_CPUFREQ tristate "ACPI Processor P-States driver" diff --git a/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh b/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh index 273364650285..f8e82d91ffcf 100755 --- a/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh +++ b/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh @@ -32,6 +32,7 @@ fi scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver) if [ "$scaling_driver" != "amd-pstate" ]; then echo "$0 # Skipped: Test can only run on amd-pstate driver." + echo "$0 # Please set X86_AMD_PSTATE enabled." echo "$0 # Current cpufreq scaling drvier is $scaling_driver." exit $ksft_skip fi