From f5ce1572109049b90484e2bb44927cb6034c5eb1 Mon Sep 17 00:00:00 2001 From: Sahara Date: Fri, 21 Jun 2013 11:12:31 +0900 Subject: PM / QoS: Add pm_qos and dev_pm_qos to events-power.txt Add PM QOS events section and description to events-power.txt. Signed-off-by: Sahara Signed-off-by: Rafael J. Wysocki --- Documentation/trace/events-power.txt | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'Documentation/trace') diff --git a/Documentation/trace/events-power.txt b/Documentation/trace/events-power.txt index e1498ff8cf94..3bd33b8dc7c4 100644 --- a/Documentation/trace/events-power.txt +++ b/Documentation/trace/events-power.txt @@ -63,3 +63,34 @@ power_domain_target "%s state=%lu cpu_id=%lu" The first parameter gives the power domain name (e.g. "mpu_pwrdm"). The second parameter is the power domain target state. +4. PM QoS events +================ +The PM QoS events are used for QoS add/update/remove request and for +target/flags update. + +pm_qos_add_request "pm_qos_class=%s value=%d" +pm_qos_update_request "pm_qos_class=%s value=%d" +pm_qos_remove_request "pm_qos_class=%s value=%d" +pm_qos_update_request_timeout "pm_qos_class=%s value=%d, timeout_us=%ld" + +The first parameter gives the QoS class name (e.g. "CPU_DMA_LATENCY"). +The second parameter is value to be added/updated/removed. +The third parameter is timeout value in usec. + +pm_qos_update_target "action=%s prev_value=%d curr_value=%d" +pm_qos_update_flags "action=%s prev_value=0x%x curr_value=0x%x" + +The first parameter gives the QoS action name (e.g. "ADD_REQ"). +The second parameter is the previous QoS value. +The third parameter is the current QoS value to update. + +And, there are also events used for device PM QoS add/update/remove request. + +dev_pm_qos_add_request "device=%s type=%s new_value=%d" +dev_pm_qos_update_request "device=%s type=%s new_value=%d" +dev_pm_qos_remove_request "device=%s type=%s new_value=%d" + +The first parameter gives the device name which tries to add/update/remove +QoS requests. +The second parameter gives the request type (e.g. "DEV_PM_QOS_LATENCY"). +The third parameter is value to be added/updated/removed. -- cgit v1.2.3-58-ga151