drm/panfrost: Add governor data with pre-defined thresholds

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The simple_ondemand devfreq governor uses two thresholds to decide about
the frequency change: upthreshold, downdifferential. These two tunable
change the behavior of the governor decision, e.g. how fast to increase
the frequency or how rapidly limit the frequency. This patch adds needed
governor data with thresholds values gathered experimentally in different
workloads.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121170445.19761-1-lukasz.luba@arm.com

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Lukasz Luba 2021-01-21 17:04:45 +00:00 • committed by Steven Price

parent a78e7a51d2

commit 1f8644d56e

2 changed files with 11 additions and 1 deletions

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10

drivers/gpu/drm/panfrost/panfrost_devfreq.c

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2

drivers/gpu/drm/panfrost/panfrost_devfreq.h

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