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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: [RESEND PATCH] cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT Date: Thu, 8 Sep 2022 08:28:21 +0800 Message-ID: <20220908002821.1648880-2-li.meng@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220908002821.1648880-1-li.meng@amd.com> References: <20220908002821.1648880-1-li.meng@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT065:EE_|DM4PR12MB6039:EE_ X-MS-Office365-Filtering-Correlation-Id: 2a2b4c3f-45e9-40f4-8345-08da9131187d 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)(39860400002)(136003)(376002)(396003)(40470700004)(36840700001)(46966006)(40460700003)(4326008)(86362001)(7696005)(2616005)(426003)(83380400001)(16526019)(1076003)(186003)(81166007)(47076005)(82740400003)(36860700001)(356005)(336012)(26005)(8676002)(70586007)(70206006)(2906002)(316002)(110136005)(8936002)(478600001)(5660300002)(40480700001)(54906003)(82310400005)(36756003)(41300700001)(6666004)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Sep 2022 00:28:47.5869 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2a2b4c3f-45e9-40f4-8345-08da9131187d 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: DM4PR12MB6039 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. Suggested-by: Shuah Khan Signed-off-by: Meng Li Acked-by: Huang Rui --- drivers/cpufreq/Kconfig.x86 | 8 ++++++++ tools/testing/selftests/amd-pstate/amd-pstate-ut.sh | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index fdd819069d72..310779b07daf 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -58,6 +58,14 @@ config X86_AMD_PSTATE_UT help 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. + config X86_ACPI_CPUFREQ tristate "ACPI Processor P-States driver" depends on ACPI_PROCESSOR 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