Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH v2, 2/3] intel_pstate: Use sample.core_avg_perf in get_avg_pstate() | Date | Wed, 11 May 2016 19:10:42 +0200 |
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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> ---
v1 -> v2: Use mul_ext_fp() to carry out the computation in get_avg_pstate().
--- drivers/cpufreq/intel_pstate.c | 4 ++-- 1 file changed, 2 insertions(+), 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 @@ -1213,8 +1213,8 @@ 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 mul_ext_fp(cpu->pstate.max_pstate_physical, + cpu->sample.core_avg_perf); } static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu)
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