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intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()

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The cpu_load algorithm doesn't need to invoke intel_pstate_calc_busy(),
so move that call from intel_pstate_sample() to
get_target_pstate_use_performance().

Signed-off-by: Philippe Longepe <philippe.longepe@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Philippe Longepe 2016-03-06 08:34:05 +01:00 committed by Rafael J. Wysocki
parent a158bed5dc
commit 7349ec0470
1 changed files with 2 additions and 3 deletions
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5
drivers/cpufreq/intel_pstate.c
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@ -915,8 +915,6 @@ static inline void intel_pstate_sample(struct cpudata *cpu, u64 time)
cpu->sample.mperf -= cpu->prev_mperf;
cpu->sample.tsc -= cpu->prev_tsc;
intel_pstate_calc_busy(cpu);
cpu->prev_aperf = aperf;
cpu->prev_mperf = mperf;
cpu->prev_tsc = tsc;
@ -945,7 +943,6 @@ static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu)
mperf = cpu->sample.mperf + delta_iowait_mperf;
cpu->prev_cummulative_iowait = cummulative_iowait;
/*
* The load can be estimated as the ratio of the mperf counter
* running at a constant frequency during active periods
@ -963,6 +960,8 @@ static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu)
int32_t core_busy, max_pstate, current_pstate, sample_ratio;
u64 duration_ns;
intel_pstate_calc_busy(cpu);
/*
* core_busy is the ratio of actual performance to max
* max_pstate is the max non turbo pstate available