[RFC][PATCH v1 11/15] perf: export tracepoint events via sysfs:power

[Lin Ming]

power tracepoint events are exported like below,

/sys/power/events/
|-- power_end
|   |-- config
|   `-- type
|-- power_frequency
|   |-- config
|   `-- type
`-- power_start
    |-- config
    `-- type
---
 kernel/power/main.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/power/main.c b/kernel/power/main.c
index b58800b..6749374 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/resume-trace.h>
 #include <linux/workqueue.h>
+#include <linux/perf_event.h>
 
 #include "power.h"
 
@@ -269,6 +270,9 @@ static int __init pm_init(void)
 	power_kobj = kobject_create_and_add("power", NULL);
 	if (!power_kobj)
 		return -ENOMEM;
+
+	perf_sys_add_tp(power_kobj, "power");
+
 	return sysfs_create_group(power_kobj, &attr_group);
 }
 



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