Arto Merilainen 6135535c12 devfreq: Add Active Watermark governor ...

This patch adds a new watermark governor that actively alters the
watermark values based on the current frequency and target load.

The governor takes target load as a given property (80% by default)
and every time when the governor re-estimation is triggered, the
governor checks the current load and calculates the next frequency
that would push the device as close this target load as possible.

At this point also the watermark values are updated so that next
time the interrupt should come when the load change is significant
enough to cause frequency change to either next or previous
frequency.

Change-Id: I860a0bc984d55628a0e560652a93306616b080cf
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/598801
Reviewed-on: http://git-master/r/1160008
(cherry picked from linux-4.9 commit e55ba2a709574ce4f01ca2f8211393c795b75dad)
[talho: removed Kconfig and Makefile changes from the patch]
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1770140
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2023-04-04 05:18:03 +00:00

..

governor_pod_scaling.c

devfreq: governor_pod_scaling: Fix build errors

2023-04-04 05:18:03 +00:00

governor_wmark_active.c

devfreq: Add Active Watermark governor

2023-04-04 05:18:03 +00:00

governor_wmark_simple.c

devfreq: Add debugfs interface to simple watermark

2023-04-04 05:18:03 +00:00