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authorPhilippe Longepe <philippe.longepe@linux.intel.com>2016-03-06 08:34:05 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-03-11 00:04:58 +0100
commit7349ec0470b62820ae226e30770b9d84a53ced9d (patch)
treec0ee221a93cae01c3f644203360890dc5b30053b /drivers/cpufreq
parenta158bed5dc92bd83338225135d448958e0b3745d (diff)
intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()
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>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/intel_pstate.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 5b5bfc1c90f1..95cc21713bb4 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -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