Commit b185c505 authored by Perry Yuan's avatar Perry Yuan Committed by Rafael J. Wysocki
Browse files

cpufreq: amd_pstate: fix wrong lowest perf fetch 



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: default avatarHuang Rui <ray.huang@amd.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarPerry Yuan <Perry.Yuan@amd.com>
Signed-off-by: default avatarSu Jinzhou <jinzhou.su@amd.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent d8bee41d

drivers/cpufreq/amd-pstate.c

+1 −1
Original line number Diff line number Diff line
@@ -312,7 +312,7 @@ 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;