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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-09-04 00:05:22 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-09-04 00:05:22 +0200 |
| commit | 08a10002bed151f6df201715adb80c1c5e7fe7ca (patch) | |
| tree | a9d53ec2b6f5b1921a614f2d4bd70fb6c3a0d42f /drivers/cpufreq/intel_pstate.c | |
| parent | Merge branch 'pm-cpufreq' (diff) | |
| parent | cpufreq: schedutil: Always process remote callback with slow switching (diff) | |
| download | linux-08a10002bed151f6df201715adb80c1c5e7fe7ca.tar.xz linux-08a10002bed151f6df201715adb80c1c5e7fe7ca.zip | |
Merge branch 'pm-cpufreq-sched'
* 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
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 04dd5f46803d..0c50637e6bda 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -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) { |