From efbd890f991c36f53dfd08f3229952e17fb95d4f Mon Sep 17 00:00:00 2001
From: Michael Peyton Jones <me@michaelpj.com>
Date: Sun, 26 May 2019 23:31:55 +0100
Subject: [PATCH] nixos: add throttled service

---
 nixos/modules/module-list.nix                 |  1 +
 nixos/modules/services/hardware/throttled.nix | 21 +++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 nixos/modules/services/hardware/throttled.nix

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 49b5076aefd..efbd0154eb6 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -325,6 +325,7 @@
   ./services/hardware/tcsd.nix
   ./services/hardware/tlp.nix
   ./services/hardware/thinkfan.nix
+  ./services/hardware/throttled.nix
   ./services/hardware/trezord.nix
   ./services/hardware/triggerhappy.nix
   ./services/hardware/u2f.nix
diff --git a/nixos/modules/services/hardware/throttled.nix b/nixos/modules/services/hardware/throttled.nix
new file mode 100644
index 00000000000..cd5b01450e4
--- /dev/null
+++ b/nixos/modules/services/hardware/throttled.nix
@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.throttled;
+in {
+  options = {
+    services.throttled = {
+      enable = mkEnableOption "fix for Intel CPU throttling";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.packages = [ pkgs.throttled ];
+    # The upstream package has this in Install, but that's not enough, see the NixOS manual
+    systemd.services."lenovo_fix".wantedBy = [ "multi-user.target" ];
+
+    environment.etc."lenovo_fix.conf".source = "${pkgs.throttled}/etc/lenovo_fix.conf";
+  };
+}