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PM / QoS: Add pm_qos_request tracepoints

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Adds tracepoints to pm_qos_add_request, pm_qos_update_request,
pm_qos_remove_request, and pm_qos_update_request_timeout.
It's useful for checking pm_qos_class, value, and timeout_us.

Signed-off-by: Sahara <keun-o.park@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sahara
2013-06-21 11:12:29 +09:00
committed by Rafael J. Wysocki
parent 247e9ee034
commit ae8822b842
2 changed files with 76 additions and 0 deletions
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5
kernel/power/qos.c
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@@ -336,6 +336,7 @@ void pm_qos_add_request(struct pm_qos_request *req,
}
req->pm_qos_class = pm_qos_class;
INIT_DELAYED_WORK(&req->work, pm_qos_work_fn);
trace_pm_qos_add_request(pm_qos_class, value);
pm_qos_update_target(pm_qos_array[pm_qos_class]->constraints,
&req->node, PM_QOS_ADD_REQ, value);
}
@@ -364,6 +365,7 @@ void pm_qos_update_request(struct pm_qos_request *req,
cancel_delayed_work_sync(&req->work);
trace_pm_qos_update_request(req->pm_qos_class, new_value);
if (new_value != req->node.prio)
pm_qos_update_target(
pm_qos_array[req->pm_qos_class]->constraints,
@@ -390,6 +392,8 @@ void pm_qos_update_request_timeout(struct pm_qos_request *req, s32 new_value,
cancel_delayed_work_sync(&req->work);
trace_pm_qos_update_request_timeout(req->pm_qos_class,
new_value, timeout_us);
if (new_value != req->node.prio)
pm_qos_update_target(
pm_qos_array[req->pm_qos_class]->constraints,
@@ -419,6 +423,7 @@ void pm_qos_remove_request(struct pm_qos_request *req)
cancel_delayed_work_sync(&req->work);
trace_pm_qos_remove_request(req->pm_qos_class, PM_QOS_DEFAULT_VALUE);
pm_qos_update_target(pm_qos_array[req->pm_qos_class]->constraints,
&req->node, PM_QOS_REMOVE_REQ,
PM_QOS_DEFAULT_VALUE);