corefreq: init at 1.98.4 (#330049)

nixos/modules/module-list.nix

@@ -172,6 +172,7 @@
   ./programs/cpu-energy-meter.nix
   ./programs/command-not-found/command-not-found.nix
   ./programs/coolercontrol.nix
+  ./programs/corefreq.nix
   ./programs/criu.nix
   ./programs/darling.nix
   ./programs/dconf.nix

nixos/modules/programs/corefreq.nix

@@ -0,0 +1,42 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.programs.corefreq;
+  kernelPackages = config.boot.kernelPackages;
+in
+{
+  options = {
+    programs.corefreq = {
+      enable = lib.mkEnableOption "Whether to enable the corefreq daemon and kernel module";
+
+      package = lib.mkOption {
+        type = lib.types.package;
+        default = kernelPackages.corefreq;
+        defaultText = lib.literalExpression "config.boot.kernelPackages.corefreq";
+        description = ''
+          The corefreq package to use.
+        '';
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+    boot.extraModulePackages = [ cfg.package ];
+    boot.kernelModules = [ "corefreqk" ];
+
+    # Create a systemd service for the corefreq daemon
+    systemd.services.corefreq = {
+      description = "CoreFreq daemon";
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        ExecStart = lib.getExe' cfg.package "corefreqd";
+      };
+    };
+  };
+}

pkgs/os-specific/linux/corefreq/default.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  kernel,
+  hostPlatform,
+  # See the official readme for a list of optional flags:
+  # https://github.com/cyring/CoreFreq/blob/master/README.md
+  extraFlags ? [ ],
+}:
+
+stdenv.mkDerivation rec {
+  pname = "corefreq";
+  version = "1.98.4";
+
+  src = fetchFromGitHub {
+    owner = "cyring";
+    repo = "CoreFreq";
+    rev = version;
+    hash = "sha256-ljo8EDoJmcdfVvC8s+Xbf5TsYruvSOU1OSYBPwQst1c=";
+  };
+
+  nativeBuildInputs = kernel.moduleBuildDependencies;
+
+  env.NIX_CFLAGS_COMPILE = "-I${src}/${hostPlatform.qemuArch}";
+  makeFlags = [
+    "KERNELDIR=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
+    "INSTALL_MOD_PATH=$(out)"
+  ] ++ extraFlags;
+
+  preInstall = ''
+    mkdir -p $out/bin
+  '';
+
+  installFlags = [ "PREFIX=$(out)" ];
+
+  meta = {
+    description = "CPU monitoring and tuning software designed for 64-bit processors";
+    homepage = "https://github.com/cyring/CoreFreq";
+    license = lib.licenses.gpl2Only;
+    maintainers = with lib.maintainers; [ mrene ];
+    mainProgram = "corefreq-cli";
+    platforms = [
+      "x86_64-linux"
+      "aarch64-linux"
+    ];
+  };
+}

pkgs/top-level/linux-kernels.nix

@@ -528,6 +528,8 @@ in {
 
     turbostat = callPackage ../os-specific/linux/turbostat { };
 
+    corefreq = callPackage ../os-specific/linux/corefreq { };
+
     trelay = callPackage ../os-specific/linux/trelay { };
 
     universal-pidff = callPackage ../os-specific/linux/universal-pidff { };