Messages in this thread | | | Date | Tue, 19 Jul 2022 08:50:45 +0800 | From | Huang Rui <> | Subject | Re: [PATCH v4 06/13] cpufreq: amd_pstate: fix wrong lowest perf fetch |
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On Fri, Jul 15, 2022 at 06:04:25PM +0800, Yuan, Perry wrote: > 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. > > Acked-by: Viresh Kumar <viresh.kumar@linaro.org> > Signed-off-by: Perry Yuan <Perry.Yuan@amd.com> > Signed-off-by: Su Jinzhou <jinzhou.su@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
> --- > 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 0c8256638ed7..4b764870035e 100644 > --- a/drivers/cpufreq/amd-pstate.c > +++ b/drivers/cpufreq/amd-pstate.c > @@ -311,7 +311,7 @@ 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; > -- > 2.32.0 >
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