AuxXxilium/linux_dsm_epyc7002
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Merge branches 'pm-cpufreq-sched' and 'intel_pstate'

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* pm-cpufreq-sched:
  cpufreq: schedutil: Fix sugov_start() versus sugov_update_shared() race

* intel_pstate:
  cpufreq: intel_pstate: Fix ratio setting for min_perf_pct
This commit is contained in:
Rafael J. Wysocki 2017-07-14 13:16:16 +02:00
commit a252c258dd
2 changed files with 6 additions and 1 deletions
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2
drivers/cpufreq/intel_pstate.c
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@ -572,7 +572,7 @@ static int min_perf_pct_min(void)
int turbo_pstate = cpu->pstate.turbo_pstate;
return turbo_pstate ?
DIV_ROUND_UP(cpu->pstate.min_pstate * 100, turbo_pstate) : 0;
(cpu->pstate.min_pstate * 100 / turbo_pstate) : 0;
}
static s16 intel_pstate_get_epb(struct cpudata *cpu_data)

5
kernel/sched/cpufreq_schedutil.c
View File

@ -610,6 +610,11 @@ static int sugov_start(struct cpufreq_policy *policy)
sg_cpu->sg_policy = sg_policy;
sg_cpu->flags = SCHED_CPUFREQ_RT;
sg_cpu->iowait_boost_max = policy->cpuinfo.max_freq;
}
for_each_cpu(cpu, policy->cpus) {
struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util,
policy_is_shared(policy) ?
sugov_update_shared :