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Support setting the platform profile

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The platform profile lives in /sys/firmware/acpi/platform_profile. The
desiredprof and defaultprof options correspond to the values for the
platform profile set when gamescope begins and ends, respectively.

HACK: The platform profile may restrict what values the governor can
take, so we choose to set the governor before the platform profile in
order to store the correct default governor, and restore the platform
profile before the governor. This is done to maximize correctness after
restoration, but it can cause issues if the previous platform profile
restricts the governor.

TODO: Save all the state we care about before any of it is changed. In
thsi case, we should set (and restore) the platform profile before the
governor.
This commit is contained in:
MithicSpirit
2025-01-28 18:36:47 -05:00
committed by afayaz-feral
parent 81d26c79b4
commit e75f2c3942
11 changed files with 333 additions and 2 deletions
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5
example/gamemode.ini
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@ -7,6 +7,11 @@ desiredgov=performance
; The default governor is used when leaving GameMode instead of restoring the original value
;defaultgov=powersave
; The desired platform profile is used when entering GameMode instead of "performance"
desiredprof=performance
; The default platform profile is used when leaving GameMode instead of restoring the original value
;defaultgov=low-power
; The iGPU desired governor is used when the integrated GPU is under heavy load
igpu_desiredgov=powersave
; Threshold to use to decide when the integrated GPU is under heavy load.