This is a note to let you know that I've just added the patch titled
cpufreq/amd-pstate-ut: Convert nominal_freq to khz during comparisons
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-amd-pstate-ut-convert-nominal_freq-to-khz-du.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ac333983a0338e3009be4d5a59af25fb2da7130c
Author: Dhananjay Ugwekar <Dhananjay.Ugwekar@xxxxxxx>
Date: Tue Jul 2 08:14:13 2024 +0000
cpufreq/amd-pstate-ut: Convert nominal_freq to khz during comparisons
[ Upstream commit f21ab5ed4e8758b06230900f44b9dcbcfdc0c3ae ]
cpudata->nominal_freq being in MHz whereas other frequencies being in
KHz breaks the amd-pstate-ut frequency sanity check. This fixes it.
Fixes: e4731baaf294 ("cpufreq: amd-pstate: Fix the inconsistency in max frequency units")
Reported-by: David Arcari <darcari@xxxxxxxxxx>
Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@xxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@xxxxxxx>
Link: https://lore.kernel.org/r/20240702081413.5688-2-Dhananjay.Ugwekar@xxxxxxx
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/cpufreq/amd-pstate-ut.c b/drivers/cpufreq/amd-pstate-ut.c
index f04ae67dda372..f5e0151f50083 100644
--- a/drivers/cpufreq/amd-pstate-ut.c
+++ b/drivers/cpufreq/amd-pstate-ut.c
@@ -201,6 +201,7 @@ static void amd_pstate_ut_check_freq(u32 index)
int cpu = 0;
struct cpufreq_policy *policy = NULL;
struct amd_cpudata *cpudata = NULL;
+ u32 nominal_freq_khz;
for_each_possible_cpu(cpu) {
policy = cpufreq_cpu_get(cpu);
@@ -208,13 +209,14 @@ static void amd_pstate_ut_check_freq(u32 index)
break;
cpudata = policy->driver_data;
- if (!((cpudata->max_freq >= cpudata->nominal_freq) &&
- (cpudata->nominal_freq > cpudata->lowest_nonlinear_freq) &&
+ nominal_freq_khz = cpudata->nominal_freq*1000;
+ if (!((cpudata->max_freq >= nominal_freq_khz) &&
+ (nominal_freq_khz > cpudata->lowest_nonlinear_freq) &&
(cpudata->lowest_nonlinear_freq > cpudata->min_freq) &&
(cpudata->min_freq > 0))) {
amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_FAIL;
pr_err("%s cpu%d max=%d >= nominal=%d > lowest_nonlinear=%d > min=%d > 0, the formula is incorrect!\n",
- __func__, cpu, cpudata->max_freq, cpudata->nominal_freq,
+ __func__, cpu, cpudata->max_freq, nominal_freq_khz,
cpudata->lowest_nonlinear_freq, cpudata->min_freq);
goto skip_test;
}
@@ -228,13 +230,13 @@ static void amd_pstate_ut_check_freq(u32 index)
if (cpudata->boost_supported) {
if ((policy->max == cpudata->max_freq) ||
- (policy->max == cpudata->nominal_freq))
+ (policy->max == nominal_freq_khz))
amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_PASS;
else {
amd_pstate_ut_cases[index].result = AMD_PSTATE_UT_RESULT_FAIL;
pr_err("%s cpu%d policy_max=%d should be equal cpu_max=%d or cpu_nominal=%d !\n",
__func__, cpu, policy->max, cpudata->max_freq,
- cpudata->nominal_freq);
+ nominal_freq_khz);
goto skip_test;
}
} else {
