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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-09-30 03:13:34 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-10-09 18:54:57 +0200
commitf00593a4bdd22e0885db89df8ee8afcc6867994f (patch)
tree6e3c771a0e778a435913d355d0093ccba8d4ae07
parentf9f4872df6e1801572949f8a370c886122d4b6da (diff)
cpufreq: intel_pstate: Clarify comment in get_target_pstate_use_performance()
Make the comment explaining the meaning of the perf_scaled variable in get_target_pstate_use_performance() more straightforward. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/cpufreq/intel_pstate.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index bc976a3db253..1c7b91c5805b 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1251,10 +1251,11 @@ static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu)
u64 duration_ns;
/*
- * perf_scaled is the average performance during the last sampling
- * period scaled by the ratio of the maximum P-state to the P-state
- * requested last time (in percent). That measures the system's
- * response to the previous P-state selection.
+ * perf_scaled is the ratio of the average P-state during the last
+ * sampling period to the P-state requested last time (in percent).
+ *
+ * That measures the system's response to the previous P-state
+ * selection.
*/
max_pstate = cpu->pstate.max_pstate_physical;
current_pstate = cpu->pstate.current_pstate;