Introduce DEVFREQ_GOV_POD_SCALING_V2 for podgov
governor implementation on kernel-5.9 and later
version to address major changes in upstream
devfreq framework.
1. devfreq framework uses devm_pm_qos to store
"min/max frequency request from user-space",
which caused 'min_freq' & 'max_freq' field
in struct devfreq have been removed.
2. DEVFREQ_GOV_INTERVAL renamed as DEVFREQ_GOV_UPDATE_INTERVAL, and
devfreq_interval_update() renamed as devfreq_update_interval()
3. return type of debugfs_create_u32() changed to void
Bug 200639056
Change-Id: I673ae3ac6b55b26766253ae0f1aeba181e2e0b53
Signed-off-by: Aaron Tian <atian@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2400108
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
A circle buffer is introduced to store recent normalized GPU active
cycle counts. The highest value in this buffer marks the busiest
moment in recent history. When podgov decides next GPU freqeuncy, it
makes sure the new frequency level can satisfy the recent high work
load. This can be considered as an adaptive GPU frequency floor. This
feature can reduce stutter for certain use cases where work load
spikes occur without any temporal pattern, such as 4k video playback.
Bug 1963732
Change-Id: I70024f4d3ffb63425852e4f320eeffb6bc77c5e3
Signed-off-by: Peng Liu <pengliu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2114154
GVS: Gerrit_Virtual_Submit
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Tested-by: Aaron Tian <atian@nvidia.com>
Reviewed-by: David Lock <dlock@nvidia.com>
Reviewed-by: Mubushir Rahman <mubushirr@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
