From: Juri Lelli <juri.lelli@arm.com>
Date: Mon, 9 Nov 2015 12:06:24 +0000 (+0000)
Subject: DEBUG: sched: add tracepoint for cpu/freq scale invariance
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=99ed4e57cb4231b2561ec4a6433722dcd4a19a9e;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

DEBUG: sched: add tracepoint for cpu/freq scale invariance

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
---

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 9b90c57517a9..20a7216f8abb 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -562,6 +562,30 @@ TRACE_EVENT(sched_wake_idle_without_ipi,
 
 	TP_printk("cpu=%d", __entry->cpu)
 );
+
+TRACE_EVENT(sched_contrib_scale_f,
+
+	TP_PROTO(int cpu, unsigned long freq_scale_factor,
+		 unsigned long cpu_scale_factor),
+
+	TP_ARGS(cpu, freq_scale_factor, cpu_scale_factor),
+
+	TP_STRUCT__entry(
+		__field(int, cpu)
+		__field(unsigned long, freq_scale_factor)
+		__field(unsigned long, cpu_scale_factor)
+	),
+
+	TP_fast_assign(
+		__entry->cpu = cpu;
+		__entry->freq_scale_factor = freq_scale_factor;
+		__entry->cpu_scale_factor = cpu_scale_factor;
+	),
+
+	TP_printk("cpu=%d freq_scale_factor=%lu cpu_scale_factor=%lu",
+		  __entry->cpu, __entry->freq_scale_factor,
+		  __entry->cpu_scale_factor)
+);
 #endif /* _TRACE_SCHED_H */
 
 /* This part must be outside protection */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1191c4b1b119..ec2e8aecc4f3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2587,6 +2587,7 @@ __update_load_avg(u64 now, int cpu, struct sched_avg *sa,
 
 	scale_freq = arch_scale_freq_capacity(NULL, cpu);
 	scale_cpu = arch_scale_cpu_capacity(NULL, cpu);
+	trace_sched_contrib_scale_f(cpu, scale_freq, scale_cpu);
 
 	/* delta_w is the amount already accumulated against our next period */
 	delta_w = sa->period_contrib;