[PATCH v5 4/7] cpufreq: amd_pstate: fix wrong lowest perf fetch
From: Perry Yuan
Date: Sun Aug 14 2022 - 12:51:37 EST
Fix the wrong lowest perf value reading which is used for new
des_perf calculation by governor requested, the incorrect min_perf will
get incorrect des_perf to be set , that will cause the system frequency
changing unexpectedly.
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Perry Yuan <Perry.Yuan@xxxxxxx>
Signed-off-by: Su Jinzhou <jinzhou.su@xxxxxxx>
---
drivers/cpufreq/amd-pstate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 5cdef6638681..183cdd4ba00e 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -307,7 +307,7 @@ static int amd_pstate_target(struct cpufreq_policy *policy,
return -ENODEV;
cap_perf = READ_ONCE(cpudata->highest_perf);
- min_perf = READ_ONCE(cpudata->lowest_nonlinear_perf);
+ min_perf = READ_ONCE(cpudata->lowest_perf);
max_perf = cap_perf;
freqs.old = policy->cur;
--
2.34.1