Konstantin Demin
8cbaf1dea2
3rd patchs (in alphabetical order): - bbr3 - ntsync5 - openwrt - pf-kernel - xanmod - zen no configuration changes for now
78 lines
2.6 KiB
Diff
78 lines
2.6 KiB
Diff
From aabfc7370a7da9c52be97c79ba70a20201e6864a Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <mario.limonciello@amd.com>
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Date: Sat, 31 Aug 2024 21:49:12 -0500
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Subject: cpufreq/amd-pstate-ut: Add test case for mode switches
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There is a state machine in the amd-pstate driver utilized for
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switches for all modes. To make sure that cleanup and setup works
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properly for each mode add a unit test case that tries all
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combinations.
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Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
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---
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drivers/cpufreq/amd-pstate-ut.c | 41 ++++++++++++++++++++++++++++++++-
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1 file changed, 40 insertions(+), 1 deletion(-)
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--- a/drivers/cpufreq/amd-pstate-ut.c
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+++ b/drivers/cpufreq/amd-pstate-ut.c
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@@ -54,12 +54,14 @@ static void amd_pstate_ut_acpi_cpc_valid
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static void amd_pstate_ut_check_enabled(u32 index);
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static void amd_pstate_ut_check_perf(u32 index);
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static void amd_pstate_ut_check_freq(u32 index);
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+static void amd_pstate_ut_check_driver(u32 index);
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static struct amd_pstate_ut_struct amd_pstate_ut_cases[] = {
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{"amd_pstate_ut_acpi_cpc_valid", amd_pstate_ut_acpi_cpc_valid },
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{"amd_pstate_ut_check_enabled", amd_pstate_ut_check_enabled },
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{"amd_pstate_ut_check_perf", amd_pstate_ut_check_perf },
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- {"amd_pstate_ut_check_freq", amd_pstate_ut_check_freq }
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+ {"amd_pstate_ut_check_freq", amd_pstate_ut_check_freq },
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+ {"amd_pstate_ut_check_driver", amd_pstate_ut_check_driver }
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};
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static bool get_shared_mem(void)
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@@ -257,6 +259,43 @@ skip_test:
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cpufreq_cpu_put(policy);
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}
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+static int amd_pstate_set_mode(enum amd_pstate_mode mode)
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+{
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+ const char *mode_str = amd_pstate_get_mode_string(mode);
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+
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+ pr_debug("->setting mode to %s\n", mode_str);
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+
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+ return amd_pstate_update_status(mode_str, strlen(mode_str));
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+}
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+
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+static void amd_pstate_ut_check_driver(u32 index)
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+{
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+ enum amd_pstate_mode mode1, mode2;
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+ int ret;
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+
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+ for (mode1 = AMD_PSTATE_DISABLE; mode1 < AMD_PSTATE_MAX; mode1++) {
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+ ret = amd_pstate_set_mode(mode1);
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+ if (ret)
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+ goto out;
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+ for (mode2 = AMD_PSTATE_DISABLE; mode2 < AMD_PSTATE_MAX; mode2++) {
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+ if (mode1 == mode2)
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+ continue;
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+ ret = amd_pstate_set_mode(mode2);
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+ if (ret)
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+ goto out;
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+ }
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+ }
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+out:
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+ if (ret)
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+ pr_warn("%s: failed to update status for %s->%s: %d\n", __func__,
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+ amd_pstate_get_mode_string(mode1),
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+ amd_pstate_get_mode_string(mode2), ret);
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+
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+ amd_pstate_ut_cases[index].result = ret ?
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+ AMD_PSTATE_UT_RESULT_FAIL :
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+ AMD_PSTATE_UT_RESULT_PASS;
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+}
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+
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static int __init amd_pstate_ut_init(void)
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{
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u32 i = 0, arr_size = ARRAY_SIZE(amd_pstate_ut_cases);
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