diff options
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 2050796..aef3572 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -706,19 +706,20 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) *min = clamp_t(int, min_perf, cpu->pstate.min_pstate, max_perf); } -static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) +static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate, bool force) { int max_perf, min_perf; - update_turbo_state(); - - intel_pstate_get_min_max(cpu, &min_perf, &max_perf); + if (force) { + update_turbo_state(); - pstate = clamp_t(int, pstate, min_perf, max_perf); + intel_pstate_get_min_max(cpu, &min_perf, &max_perf); - if (pstate == cpu->pstate.current_pstate) - return; + pstate = clamp_t(int, pstate, min_perf, max_perf); + if (pstate == cpu->pstate.current_pstate) + return; + } trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); cpu->pstate.current_pstate = pstate; @@ -735,7 +736,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) if (pstate_funcs.get_vid) pstate_funcs.get_vid(cpu); - intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); + intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate, false); } static inline void intel_pstate_calc_busy(struct cpudata *cpu) @@ -855,7 +856,7 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu) ctl = pid_calc(pid, busy_scaled); /* Negative values of ctl increase the pstate and vice versa */ - intel_pstate_set_pstate(cpu, cpu->pstate.current_pstate - ctl); + intel_pstate_set_pstate(cpu, cpu->pstate.current_pstate - ctl, true); sample = &cpu->sample; trace_pstate_sample(fp_toint(sample->core_pct_busy), @@ -1018,7 +1019,7 @@ static void intel_pstate_stop_cpu(struct cpufreq_policy *policy) if (hwp_active) return; - intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); + intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate, false); } static int intel_pstate_cpu_init(struct cpufreq_policy *policy) |