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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-02-12 00:06:17 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-02-13 11:26:39 +0100 |
| commit | 333eed7d20069e2d80446f5fdf9ac3868b55e7b9 (patch) | |
| tree | 76a1a7561d0ae9b2fbc727988123fb844bebbe78 /Documentation/trace | |
| parent | 2552d3520132a22834e0be85c51168a7a798608c (diff) | |
| download | linux-333eed7d20069e2d80446f5fdf9ac3868b55e7b9.tar.bz2 | |
PM: QoS: Simplify definitions of CPU latency QoS trace events
Modify the definitions of the CPU latency QoS trace events to take
one argument (since PM_QOS_CPU_DMA_LATENCY is always passed as the
pm_qos_class argument to them) and update the documentation of them
accordingly (while at it, make it explicitly mention CPU latency QoS
and relocate it after the device PM QoS trace events documentation).
The names and output format of the trace events do not change to
preserve user space compatibility.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/events-power.rst | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/Documentation/trace/events-power.rst b/Documentation/trace/events-power.rst index eec7453a168e..f45bf11fa88d 100644 --- a/Documentation/trace/events-power.rst +++ b/Documentation/trace/events-power.rst @@ -75,14 +75,6 @@ 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" - -The first parameter gives the QoS class name (e.g. "CPU_DMA_LATENCY"). -The second parameter is value to be added/updated/removed. -:: - 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" @@ -90,7 +82,7 @@ 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. +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" @@ -101,3 +93,12 @@ 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_RESUME_LATENCY"). The third parameter is value to be added/updated/removed. + +And, there are events used for CPU latency QoS add/update/remove request. +:: + + pm_qos_add_request "value=%d" + pm_qos_update_request "value=%d" + pm_qos_remove_request "value=%d" + +The parameter is the value to be added/updated/removed. |