Merge pull request #261378 from lamarios/auto-epp

auto-epp: init at 1.2.1

maintainers/maintainer-list.nix

@@ -10010,6 +10010,12 @@
     githubId = 55911173;
     name = "Gwendolyn Quasebarth";
   };
+  lamarios = {
+    matrix = "@lamarios:matrix.org";
+    github = "lamarios";
+    githubId = 1192563;
+    name = "Paul Fauchon";
+  };
   lambda-11235 = {
     email = "taranlynn0@gmail.com";
     github = "lambda-11235";

nixos/modules/module-list.nix

@@ -516,6 +516,7 @@
   ./services/hardware/argonone.nix
   ./services/hardware/asusd.nix
   ./services/hardware/auto-cpufreq.nix
+  ./services/hardware/auto-epp.nix
   ./services/hardware/bluetooth.nix
   ./services/hardware/bolt.nix
   ./services/hardware/brltty.nix

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

@@ -0,0 +1,80 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.auto-epp;
+  format = pkgs.formats.ini {};
+
+  inherit (lib) mkOption types;
+in {
+  options = {
+    services.auto-epp = {
+      enable = lib.mkEnableOption (lib.mdDoc "auto-epp for amd active pstate");
+
+      package = lib.mkPackageOptionMD pkgs "auto-epp" {};
+
+      settings = mkOption {
+        type = types.submodule {
+          freeformType = format.type;
+          options = {
+            Settings = {
+              epp_state_for_AC = mkOption {
+                type = types.str;
+                default = "balance_performance";
+                description = lib.mdDoc ''
+                  energy_performance_preference when on plugged in
+
+                  ::: {.note}
+                  See available epp states by running:
+                  {command}`cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences`
+                  :::
+                '';
+              };
+
+              epp_state_for_BAT = mkOption {
+                type = types.str;
+                default = "power";
+                description = lib.mdDoc ''
+                  `energy_performance_preference` when on battery
+
+                  ::: {.note}
+                  See available epp states by running:
+                  {command}`cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences`
+                  :::
+                '';
+              };
+            };
+          };
+        };
+        default = {};
+        description = lib.mdDoc ''
+          Settings for the auto-epp application.
+          See upstream example: <https://github.com/jothi-prasath/auto-epp/blob/master/sample-auto-epp.conf>
+        '';
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+
+    boot.kernelParams = [
+      "amd_pstate=active"
+    ];
+
+    environment.etc."auto-epp.conf".source = format.generate "auto-epp.conf" cfg.settings;
+    systemd.packages = [ cfg.package ];
+
+    systemd.services.auto-epp = {
+      after = [ "multi-user.target" ];
+      wantedBy  = [ "multi-user.target" ];
+      description = "auto-epp - Automatic EPP Changer for amd-pstate-epp";
+      serviceConfig = {
+        Type = "simple";
+        User = "root";
+        ExecStart = lib.getExe cfg.package;
+        Restart = "on-failure";
+      };
+    };
+  };
+
+  meta.maintainers = with lib.maintainers; [ lamarios ];
+}

pkgs/by-name/au/auto-epp/package.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub, python3 }:
+stdenv.mkDerivation rec {
+  pname = "auto-epp";
+  version = "1.2.1";
+
+  src = fetchFromGitHub {
+    owner = "jothi-prasath";
+    repo = "auto-epp";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-7sI8K+7ZAdzBN/XOzYQQZ1f9t+fFo6fcXYzX6abNyQ8=";
+  };
+
+  buildInputs = [ python3 ];
+
+  installPhase = ''
+    runHook preInstall
+    install -Dm555 auto-epp $out/bin/auto-epp
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    mainProgram = "auto-epp";
+    homepage = "https://github.com/jothi-prasath/auto-epp";
+    description = "Auto-epp (energy performance preference) for AMD processors when amd_pstate=active";
+    platforms = platforms.linux;
+    license = licenses.mit;
+    maintainers = [ maintainers.lamarios ];
+  };
+}