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monolith: extract undervolt config

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This commit is contained in:
Leonardo Eugênio 2024-07-06 18:32:29 -03:00
parent 89b758f163
commit 0150248650
2 changed files with 17 additions and 8 deletions
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16
hosts/monolith/undervolt.nix Normal file
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@ -0,0 +1,16 @@
{ pkgs, ... }:
let
undervoltGpu = pkgs.writeShellScript "undervolt-gpu" ''
set -xe
cd $1
test -e pp_od_clk_voltage
echo "vo -100" > pp_od_clk_voltage
echo "c" > pp_od_clk_voltage
'';
in
{
boot.kernelParams = [ "amdgpu.ppfeaturemask=0xfffd7fff" ];
services.udev.extraRules = ''
ACTION=="add", SUBSYSTEM=="hwmon", ATTR{name}=="amdgpu", ATTR{power1_cap}="186000000", RUN+="${undervoltGpu} %S%p/device"
'';
}