Commit 4d8b3262 authored Nov 08, 2019 by Linus Torvalds

linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix an 'unchecked MSR access' warning in the intel_pstate cpufreq
  driver (Srinivas Pandruvada)"

* tag 'pm-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Fix invalid EPB setting

parents 8ac2a114 c31432fa

drivers/cpufreq/intel_pstate.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -847,11 +847,9 @@ static void intel_pstate_hwp_force_min_perf(int cpu)
		value \|= HWP_MAX_PERF(min_perf);
		value \|= HWP_MIN_PERF(min_perf);

		/* Set EPP/EPB to min */
		/* Set EPP to min */
		if (boot_cpu_has(X86_FEATURE_HWP_EPP))
		value \|= HWP_ENERGY_PERF_PREFERENCE(HWP_EPP_POWERSAVE);
		else
		intel_pstate_set_epb(cpu, HWP_EPP_BALANCE_POWERSAVE);

		wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value);
		}