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amd-pstate-ut: Add module parameter to select testcases

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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 <gautham.shenoy@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
This commit is contained in:
Gautham R. Shenoy 2026-03-26 17:17:52 +05:30 committed by Mario Limonciello (AMD)
parent 30c63f7234
commit c6a2b750de
1 changed files with 30 additions and 1 deletions
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31
drivers/cpufreq/amd-pstate-ut.c
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@ -35,6 +35,10 @@
#include "amd-pstate.h"
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)");
struct amd_pstate_ut_struct {
const char *name;
@ -58,6 +62,25 @@ static struct amd_pstate_ut_struct amd_pstate_ut_cases[] = {
{"amd_pstate_ut_check_driver", amd_pstate_ut_check_driver }
};
static bool test_in_list(const char *list, const char *name)
{
size_t name_len = strlen(name);
const char *p = list;
while (*p) {
const char *sep = strchr(p, ',');
size_t token_len = sep ? sep - p : strlen(p);
if (token_len == name_len && !strncmp(p, name, token_len))
return true;
if (!sep)
break;
p = sep + 1;
}
return false;
}
static bool get_shared_mem(void)
{
bool result = false;
@ -275,7 +298,13 @@ static int __init amd_pstate_ut_init(void)
u32 i = 0, arr_size = ARRAY_SIZE(amd_pstate_ut_cases);
for (i = 0; i < arr_size; i++) {
int ret = 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 = amd_pstate_ut_cases[i].func(i);
if (ret)
pr_err("%-4d %-20s\t fail: %d!\n", i+1, amd_pstate_ut_cases[i].name, ret);