From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Sun, 3 Sep 2017 22:05:42 +0000 (+0200)
Subject: Merge branch 'intel_pstate'
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ab271bc95b40960799c084b0e94a33c4272ec0bf;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

Merge branch 'intel_pstate'

* intel_pstate:
  cpufreq: intel_pstate: Shorten a couple of long names
  cpufreq: intel_pstate: Simplify intel_pstate_adjust_pstate()
  cpufreq: intel_pstate: Improve IO performance with per-core P-states
  cpufreq: intel_pstate: Drop INTEL_PSTATE_HWP_SAMPLING_INTERVAL
  cpufreq: intel_pstate: Drop ->update_util from pstate_funcs
  cpufreq: intel_pstate: Do not use PID-based P-state selection
---

ab271bc95b40960799c084b0e94a33c4272ec0bf
diff --cc drivers/cpufreq/intel_pstate.c
index 0c50637e6bda,d5a61f45a00c..8f95265d5f52
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@@ -1767,12 -1525,17 +1525,21 @@@ static void intel_pstate_update_util(st
  	struct cpudata *cpu = container_of(data, struct cpudata, update_util);
  	u64 delta_ns;
  
 +	/* Don't allow remote callbacks */
 +	if (smp_processor_id() != cpu->cpu)
 +		return;
 +
  	if (flags & SCHED_CPUFREQ_IOWAIT) {
  		cpu->iowait_boost = int_tofp(1);
+ 		cpu->last_update = time;
+ 		/*
+ 		 * The last time the busy was 100% so P-state was max anyway
+ 		 * so avoid overhead of computation.
+ 		 */
+ 		if (fp_toint(cpu->sample.busy_scaled) == 100)
+ 			return;
+ 
+ 		goto set_pstate;
  	} else if (cpu->iowait_boost) {
  		/* Clear iowait_boost if the CPU may have been idle. */
  		delta_ns = time - cpu->last_update;