PM / QoS: Add dev_pm_qos_request tracepoints

Adds tracepoints to dev_pm_qos_add_request, dev_pm_qos_update_request,
and dev_pm_qos_remove_request.  It's useful for checking device name,
dev_pm_qos_request_type, and value.

Signed-off-by: Sahara <keun-o.park@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 6411f924afb1..8e42410bd159 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -299,6 +299,57 @@ DEFINE_EVENT_PRINT(pm_qos_update, pm_qos_update_flags,
                         { PM_QOS_REMOVE_REQ,    "REMOVE_REQ" }),
                   __entry->prev_value, __entry->curr_value)
 );
+
+DECLARE_EVENT_CLASS(dev_pm_qos_request,
+
+        TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
+                 s32 new_value),
+
+        TP_ARGS(name, type, new_value),
+
+        TP_STRUCT__entry(
+                __string( name,                    name         )
+                __field( enum dev_pm_qos_req_type, type         )
+                __field( s32,                      new_value    )
+        ),
+
+        TP_fast_assign(
+                __assign_str(name, name);
+                __entry->type = type;
+                __entry->new_value = new_value;
+        ),
+
+        TP_printk("device=%s type=%s new_value=%d",
+                  __get_str(name),
+                  __print_symbolic(__entry->type,
+                        { DEV_PM_QOS_LATENCY,   "DEV_PM_QOS_LATENCY" },
+                        { DEV_PM_QOS_FLAGS,     "DEV_PM_QOS_FLAGS" }),
+                  __entry->new_value)
+);
+
+DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_add_request,
+
+        TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
+                 s32 new_value),
+
+        TP_ARGS(name, type, new_value)
+);
+
+DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_update_request,
+
+        TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
+                 s32 new_value),
+
+        TP_ARGS(name, type, new_value)
+);
+
+DEFINE_EVENT(dev_pm_qos_request, dev_pm_qos_remove_request,
+
+        TP_PROTO(const char *name, enum dev_pm_qos_req_type type,
+                 s32 new_value),
+
+        TP_ARGS(name, type, new_value)
+);
 #endif /* _TRACE_POWER_H */
 
 /* This part must be outside protection */