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alistair23-linux
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Merge branch 'pm-cpufreq-fixes' 

* pm-cpufreq-fixes:
  cpufreq: Abort cpufreq_update_current_freq() for cpufreq_suspended set
  intel_pstate: Avoid getting stuck in high P-states when idle
hifive-unleashed-5.1
Rafael J. Wysocki 2016-04-21 20:57:46 +02:00
parent c3b46c7326 c9d9c929e6
commit 395da1259a
2 changed files with 7 additions and 0 deletions
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3
drivers/cpufreq/cpufreq.c
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@ -1491,6 +1491,9 @@ static unsigned int cpufreq_update_current_freq(struct cpufreq_policy *policy)
{
unsigned int new_freq;
if (cpufreq_suspended)
return 0;
new_freq = cpufreq_driver->get(policy->cpu);
if (!new_freq)
return 0;

4
drivers/cpufreq/intel_pstate.c
View File

@ -1130,6 +1130,10 @@ static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu)
sample_ratio = div_fp(int_tofp(pid_params.sample_rate_ns),
int_tofp(duration_ns));
core_busy = mul_fp(core_busy, sample_ratio);
} else {
sample_ratio = div_fp(100 * cpu->sample.mperf, cpu->sample.tsc);
if (sample_ratio < int_tofp(1))
core_busy = 0;
}
cpu->sample.busy_scaled = core_busy;