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Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index d3575f5ec6d2..7fce038fa57e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -583,15 +583,13 @@ out:
583 i += sprintf(&buf[i], "\n"); 583 i += sprintf(&buf[i], "\n");
584 return i; 584 return i;
585} 585}
586/** 586
587 * show_affected_cpus - show the CPUs affected by each transition 587static ssize_t show_cpus(cpumask_t mask, char *buf)
588 */
589static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
590{ 588{
591 ssize_t i = 0; 589 ssize_t i = 0;
592 unsigned int cpu; 590 unsigned int cpu;
593 591
594 for_each_cpu_mask(cpu, policy->cpus) { 592 for_each_cpu_mask(cpu, mask) {
595 if (i) 593 if (i)
596 i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), " "); 594 i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), " ");
597 i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u", cpu); 595 i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u", cpu);
@@ -602,6 +600,25 @@ static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
602 return i; 600 return i;
603} 601}
604 602
603/**
604 * show_related_cpus - show the CPUs affected by each transition even if
605 * hw coordination is in use
606 */
607static ssize_t show_related_cpus(struct cpufreq_policy *policy, char *buf)
608{
609 if (cpus_empty(policy->related_cpus))
610 return show_cpus(policy->cpus, buf);
611 return show_cpus(policy->related_cpus, buf);
612}
613
614/**
615 * show_affected_cpus - show the CPUs affected by each transition
616 */
617static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
618{
619 return show_cpus(policy->cpus, buf);
620}
621
605static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy, 622static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy,
606 const char *buf, size_t count) 623 const char *buf, size_t count)
607{ 624{
@@ -646,6 +663,7 @@ define_one_ro(cpuinfo_max_freq);
646define_one_ro(scaling_available_governors); 663define_one_ro(scaling_available_governors);
647define_one_ro(scaling_driver); 664define_one_ro(scaling_driver);
648define_one_ro(scaling_cur_freq); 665define_one_ro(scaling_cur_freq);
666define_one_ro(related_cpus);
649define_one_ro(affected_cpus); 667define_one_ro(affected_cpus);
650define_one_rw(scaling_min_freq); 668define_one_rw(scaling_min_freq);
651define_one_rw(scaling_max_freq); 669define_one_rw(scaling_max_freq);
@@ -658,6 +676,7 @@ static struct attribute *default_attrs[] = {
658 &scaling_min_freq.attr, 676 &scaling_min_freq.attr,
659 &scaling_max_freq.attr, 677 &scaling_max_freq.attr,
660 &affected_cpus.attr, 678 &affected_cpus.attr,
679 &related_cpus.attr,
661 &scaling_governor.attr, 680 &scaling_governor.attr,
662 &scaling_driver.attr, 681 &scaling_driver.attr,
663 &scaling_available_governors.attr, 682 &scaling_available_governors.attr,