From a09a25c5dfc81d08df7b3c2e76ea94a651c17ac2 Mon Sep 17 00:00:00 2001
From: Patrick Bellasi <patrick.bellasi@arm.com>
Date: Mon, 22 Jun 2015 13:51:07 +0100
Subject: [PATCH] DEBUG: schedtune: add tracepoint for CPU boost signal

Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
---
 include/trace/events/sched.h | 27 +++++++++++++++++++++++++++
 kernel/sched/fair.c          |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 8ae43a2ebfda..eb812071458b 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -675,6 +675,33 @@ TRACE_EVENT(sched_tune_config,
 	TP_printk("boost=%d ", __entry->boost)
 );
 
+/*
+ * Tracepoint for accounting CPU  boosted utilization
+ */
+TRACE_EVENT(sched_boost_cpu,
+
+	TP_PROTO(int cpu, unsigned long util, unsigned long margin),
+
+	TP_ARGS(cpu, util, margin),
+
+	TP_STRUCT__entry(
+		__field( int,		cpu			)
+		__field( unsigned long,	util			)
+		__field( unsigned long,	margin			)
+	),
+
+	TP_fast_assign(
+		__entry->cpu	= cpu;
+		__entry->util	= util;
+		__entry->margin	= margin;
+	),
+
+	TP_printk("cpu=%d util=%lu margin=%lu",
+		  __entry->cpu,
+		  __entry->util,
+		  __entry->margin)
+);
+
 #endif /* _TRACE_SCHED_H */
 
 /* This part must be outside protection */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 9b74b86aba3a..3bc56e0ea1ab 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5272,6 +5272,8 @@ boosted_cpu_util(int cpu)
 	unsigned long util = cpu_util(cpu);
 	unsigned long margin = schedtune_cpu_margin(util, cpu);
 
+	trace_sched_boost_cpu(cpu, util, margin);
+
 	return util + margin;
 }
 
-- 
2.20.1