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Merge branch 'pm-cpufreq-sched'

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* pm-cpufreq-sched:
  cpufreq: schedutil: Always process remote callback with slow switching
  cpufreq: schedutil: Don't restrict kthread to related_cpus unnecessarily
  cpufreq: Return 0 from ->fast_switch() on errors
  cpufreq: Simplify cpufreq_can_do_remote_dvfs()
  cpufreq: Process remote callbacks from any CPU if the platform permits
  sched: cpufreq: Allow remote cpufreq callbacks
  cpufreq: schedutil: Use unsigned int for iowait boost
  cpufreq: schedutil: Make iowait boost more energy efficient
This commit is contained in:
Rafael J. Wysocki
2017-09-04 00:05:22 +02:00
parent bd87c8fb9d c49cbc19b3
commit 08a10002be
10 changed files with 116 additions and 31 deletions
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8
drivers/cpufreq/intel_pstate.c
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@@ -1746,6 +1746,10 @@ static void intel_pstate_update_util_pid(struct update_util_data *data,
struct cpudata *cpu = container_of(data, struct cpudata, update_util);
u64 delta_ns = time - cpu->sample.time;
/* Don't allow remote callbacks */
if (smp_processor_id() != cpu->cpu)
return;
if ((s64)delta_ns < pid_params.sample_rate_ns)
return;
@@ -1763,6 +1767,10 @@ static void intel_pstate_update_util(struct update_util_data *data, u64 time,
struct cpudata *cpu = container_of(data, struct cpudata, update_util);
u64 delta_ns;
/* Don't allow remote callbacks */
if (smp_processor_id() != cpu->cpu)
return;
if (flags & SCHED_CPUFREQ_IOWAIT) {
cpu->iowait_boost = int_tofp(1);
} else if (cpu->iowait_boost) {