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| author | Sahara <keun-o.park@windriver.com> | 2013-06-21 04:12:31 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-24 13:09:03 +0200 |
| commit | f5ce1572109049b90484e2bb44927cb6034c5eb1 (patch) | |
| tree | 60b79bc315d1c66505b8b23e1de8b8091e599d00 /Documentation/trace | |
| parent | PM / QoS: Add dev_pm_qos_request tracepoints (diff) | |
| download | linux-f5ce1572109049b90484e2bb44927cb6034c5eb1.tar.xz linux-f5ce1572109049b90484e2bb44927cb6034c5eb1.zip | |
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 <keun-o.park@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/events-power.txt | 31 |
1 files changed, 31 insertions, 0 deletions
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. |