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Shenoy" To: Mario Limonciello , "Rafael J . Wysocki" , Viresh Kumar , K Prateek Nayak CC: , , "Gautham R. Shenoy" Subject: [PATCH v4 08/12] amd-pstate-ut: Add module parameter to select testcases Date: Thu, 26 Mar 2026 17:17:52 +0530 Message-ID: <20260326114756.20374-9-gautham.shenoy@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260326114756.20374-1-gautham.shenoy@amd.com> References: <20260326114756.20374-1-gautham.shenoy@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: satlexmb07.amd.com (10.181.42.216) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099DB:EE_|CH1PPF6D0742E7B:EE_ X-MS-Office365-Filtering-Correlation-Id: bf2657e7-bb84-4c10-c83f-08de8b2d9f4f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|376014|1800799024|82310400026|18002099003|22082099003|56012099003; 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:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700016)(376014)(1800799024)(82310400026)(18002099003)(22082099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: hyVh03tmZfPD+96UrfUNUgZ23fM1+qVfRFlAGHiobO3G9b0lGcjOrjBAdZFScVNUCj6taLzWpK6dQmcPADb65OrVvFKC+lyGDLQXSZomEzk8Nn4CcIWWD9w3mUMaz6r3N0MaGMMBHUbnk31uKUhDqQB55qvsN2ddHkuhHsflq8eHDpabCJ3InjEWd/dm/z2ZMjx+EXGsN55H4lHPufzWNJ3OiiHSLTs0HVI62yh8imBEnimVYqq1kY1hd7bLeJTkTki5Q4EYP2yGuveaCI0ozg+20pSQbn/VdlSFJXORfrCaSNcO1fC1nzCuoZhvlb2korRq4DKdhOJZJDt3YpsqoeVqkthtBvWNX1+FG92t8zv+dXR4qxX+C523hXZ7sjBlbhz6EohvxfOn5sKqpiOcQJtQtKQK2P6S+zX88y8lQNIq0WGn6QNL81DqVwNoMkCH X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Mar 2026 11:48:39.4980 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bf2657e7-bb84-4c10-c83f-08de8b2d9f4f 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=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DB.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH1PPF6D0742E7B Content-Type: text/plain; charset="utf-8" Currently when amd-pstate-ut test module is loaded, it runs all the tests from amd_pstate_ut_cases[] array. Add a module parameter named "test_list" that accepts a comma-delimited list of test names, allowing users to run a selected subset of tests. When the parameter is omitted or empty, all tests are run as before. Signed-off-by: Gautham R. Shenoy Reviewed-by: Mario Limonciello (AMD) --- drivers/cpufreq/amd-pstate-ut.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/amd-pstate-ut.c b/drivers/cpufreq/amd-pstate-u= t.c index 447b9aa5ce40..3dcdf56883a6 100644 --- a/drivers/cpufreq/amd-pstate-ut.c +++ b/drivers/cpufreq/amd-pstate-ut.c @@ -35,6 +35,10 @@ =20 #include "amd-pstate.h" =20 +static char *test_list; +module_param(test_list, charp, 0444); +MODULE_PARM_DESC(test_list, + "Comma-delimited list of tests to run (empty means run all tests)"); =20 struct amd_pstate_ut_struct { const char *name; @@ -58,6 +62,25 @@ static struct amd_pstate_ut_struct amd_pstate_ut_cases[]= =3D { {"amd_pstate_ut_check_driver", amd_pstate_ut_check_driver } }; =20 +static bool test_in_list(const char *list, const char *name) +{ + size_t name_len =3D strlen(name); + const char *p =3D list; + + while (*p) { + const char *sep =3D strchr(p, ','); + size_t token_len =3D sep ? sep - p : strlen(p); + + if (token_len =3D=3D name_len && !strncmp(p, name, token_len)) + return true; + if (!sep) + break; + p =3D sep + 1; + } + + return false; +} + static bool get_shared_mem(void) { bool result =3D false; @@ -275,7 +298,13 @@ static int __init amd_pstate_ut_init(void) u32 i =3D 0, arr_size =3D ARRAY_SIZE(amd_pstate_ut_cases); =20 for (i =3D 0; i < arr_size; i++) { - int ret =3D amd_pstate_ut_cases[i].func(i); + int ret; + + if (test_list && *test_list && + !test_in_list(test_list, amd_pstate_ut_cases[i].name)) + continue; + + ret =3D amd_pstate_ut_cases[i].func(i); =20 if (ret) pr_err("%-4d %-20s\t fail: %d!\n", i+1, amd_pstate_ut_cases[i].name, re= t); --=20 2.34.1