A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

PM: QoS: Get rid of unused flags

Browse source 
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 4a733ef1be ("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 <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Amit Kucheria 2019-07-11 19:51:25 +05:30 • committed by Rafael J. Wysocki
commit c3082a674f
4 changed files with 4 additions and 63 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Documentation/power/pm_qos_interface.rst
View file

@ -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.