67 lines
2.0 KiB
Nix
67 lines
2.0 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.programs.corectrl;
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in
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{
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options.programs.corectrl = {
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enable = mkEnableOption (lib.mdDoc ''
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CoreCtrl, a tool to overclock amd graphics cards and processors.
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Add your user to the corectrl group to run corectrl without needing to enter your password
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'');
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package = mkPackageOption pkgs "corectrl" {
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extraDescription = "Useful for overriding the configuration options used for the package.";
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};
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gpuOverclock = {
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enable = mkEnableOption (lib.mdDoc ''
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GPU overclocking
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'');
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ppfeaturemask = mkOption {
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type = types.str;
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default = "0xfffd7fff";
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example = "0xffffffff";
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description = lib.mdDoc ''
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Sets the `amdgpu.ppfeaturemask` kernel option.
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In particular, it is used here to set the overdrive bit.
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Default is `0xfffd7fff` as it is less likely to cause flicker issues.
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Setting it to `0xffffffff` enables all features.
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'';
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};
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};
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};
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config = mkIf cfg.enable (lib.mkMerge [
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{
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environment.systemPackages = [ cfg.package ];
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services.dbus.packages = [ cfg.package ];
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users.groups.corectrl = { };
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security.polkit.extraConfig = ''
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polkit.addRule(function(action, subject) {
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if ((action.id == "org.corectrl.helper.init" ||
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action.id == "org.corectrl.helperkiller.init") &&
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subject.local == true &&
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subject.active == true &&
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subject.isInGroup("corectrl")) {
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return polkit.Result.YES;
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}
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});
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'';
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}
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(lib.mkIf cfg.gpuOverclock.enable {
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# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/amd/include/amd_shared.h#n169
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# The overdrive bit
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boot.kernelParams = [ "amdgpu.ppfeaturemask=${cfg.gpuOverclock.ppfeaturemask}" ];
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})
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]);
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meta.maintainers = with lib.maintainers; [ artturin ];
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}
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