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Subject[PATCH v2, 2/3] intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
Date
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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