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| author | Amit Kucheria <amit.kucheria@linaro.org> | 2019-07-11 17:21:25 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-08-21 01:38:54 +0300 |
| commit | c3082a674f46fe49383b157882c41dfabaa37113 (patch) | |
| tree | 578b8d8283b55b4368de4d5f47842a3c257e90e3 /Documentation/power | |
| parent | d1abaeb3be7b5fa6d7a1fbbd2e14e3310005c4c1 (diff) | |
| download | linux-c3082a674f46fe49383b157882c41dfabaa37113.tar.xz | |
PM: QoS: Get rid of unused flags
The network_latency and network_throughput flags for PM-QoS have not
found much use in drivers or in userspace since they were introduced.
Commit 4a733ef1bea7 ("mac80211: remove PM-QoS listener") removed the
only user PM_QOS_NETWORK_LATENCY in the kernel a while ago and there
don't seem to be any userspace tools using the character device files
either.
PM_QOS_MEMORY_BANDWIDTH was never even added to the trace events.
Remove all the flags except cpu_dma_latency.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/power')
| -rw-r--r-- | Documentation/power/pm_qos_interface.rst | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/power/pm_qos_interface.rst b/Documentation/power/pm_qos_interface.rst index 69921f072ce1..3097694fba69 100644 --- a/Documentation/power/pm_qos_interface.rst +++ b/Documentation/power/pm_qos_interface.rst @@ -7,8 +7,7 @@ performance expectations by drivers, subsystems and user space applications on one of the parameters. Two different PM QoS frameworks are available: -1. PM QoS classes for cpu_dma_latency, network_latency, network_throughput, -memory_bandwidth. +1. PM QoS classes for cpu_dma_latency 2. the per-device PM QoS framework provides the API to manage the per-device latency constraints and PM QoS flags. @@ -79,7 +78,7 @@ cleanup of a process, the interface requires the process to register its parameter requests in the following way: To register the default pm_qos target for the specific parameter, the process -must open one of /dev/[cpu_dma_latency, network_latency, network_throughput] +must open /dev/cpu_dma_latency As long as the device node is held open that process has a registered request on the parameter. |