[PATCH 2/3] intel_pstate: Use sample.core_avg_perf in get_avg_pstate()

From	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Newsgroups	linux.kernel
Subject	[PATCH 2/3] intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
Date	2016-05-07 01:50 +0200
Message-ID	<rvXFn-6JF-7@gated-at.bofh.it> (permalink)
References	<rvXFn-6JF-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Notice that get_avg_pstate() can use sample.core_avg_perf instead of
carrying the same division again, so make it do that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/intel_pstate.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Index: linux-pm/drivers/cpufreq/intel_pstate.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/intel_pstate.c
+++ linux-pm/drivers/cpufreq/intel_pstate.c
@@ -1201,8 +1201,7 @@ static inline int32_t get_avg_frequency(
 
 static inline int32_t get_avg_pstate(struct cpudata *cpu)
 {
-	return div64_u64(cpu->pstate.max_pstate_physical * cpu->sample.aperf,
-			 cpu->sample.mperf);
+	return fp_toint(cpu->pstate.max_pstate_physical * cpu->sample.core_avg_perf);
 }
 
 static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu)

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH 2/3] intel_pstate: Use sample.core_avg_perf in get_avg_pstate() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-05-07 01:50 +0200

csiph-web