nixos/modules/services/hardware/auto-epp.nix

   1 {
   2   config,
   3   lib,
   4   pkgs,
   5   ...
   6 }:
   7
   8 let
   9   cfg = config.services.auto-epp;
  10   format = pkgs.formats.ini { };
  11
  12   inherit (lib) mkOption types;
  13 in
  14 {
  15   options = {
  16     services.auto-epp = {
  17       enable = lib.mkEnableOption "auto-epp for amd active pstate";
  18
  19       package = lib.mkPackageOption pkgs "auto-epp" { };
  20
  21       settings = mkOption {
  22         type = types.submodule {
  23           freeformType = format.type;
  24           options = {
  25             Settings = {
  26               epp_state_for_AC = mkOption {
  27                 type = types.str;
  28                 default = "balance_performance";
  29                 description = ''
  30                   energy_performance_preference when on plugged in
  31
  32                   ::: {.note}
  33                   See available epp states by running:
  34                   {command}`cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences`
  35                   :::
  36                 '';
  37               };
  38
  39               epp_state_for_BAT = mkOption {
  40                 type = types.str;
  41                 default = "power";
  42                 description = ''
  43                   `energy_performance_preference` when on battery
  44
  45                   ::: {.note}
  46                   See available epp states by running:
  47                   {command}`cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences`
  48                   :::
  49                 '';
  50               };
  51             };
  52           };
  53         };
  54         default = { };
  55         description = ''
  56           Settings for the auto-epp application.
  57           See upstream example: <https://github.com/jothi-prasath/auto-epp/blob/master/sample-auto-epp.conf>
  58         '';
  59       };
  60     };
  61   };
  62
  63   config = lib.mkIf cfg.enable {
  64
  65     boot.kernelParams = [
  66       "amd_pstate=active"
  67     ];
  68
  69     environment.etc."auto-epp.conf".source = format.generate "auto-epp.conf" cfg.settings;
  70     systemd.packages = [ cfg.package ];
  71
  72     systemd.services.auto-epp = {
  73       after = [ "multi-user.target" ];
  74       wantedBy = [ "multi-user.target" ];
  75       description = "auto-epp - Automatic EPP Changer for amd-pstate-epp";
  76       serviceConfig = {
  77         Type = "simple";
  78         User = "root";
  79         ExecStart = lib.getExe cfg.package;
  80         Restart = "on-failure";
  81       };
  82     };
  83   };
  84
  85   meta.maintainers = with lib.maintainers; [ lamarios ];
  86 }