From 941fbef86f558b9a39e6d1460ba5a34ecd72ebd5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9-Patrick=20Bubel?= <code@andre-bubel.de>
Date: Fri, 19 Oct 2018 17:52:25 +0200
Subject: move acpi_call.nix and cpu-throttling-bug.nix to common folder

---
 common/pc/laptop/acpi_call.nix          | 10 +++++++++
 common/pc/laptop/cpu-throttling-bug.nix | 38 +++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 common/pc/laptop/acpi_call.nix
 create mode 100644 common/pc/laptop/cpu-throttling-bug.nix

(limited to 'common')

diff --git a/common/pc/laptop/acpi_call.nix b/common/pc/laptop/acpi_call.nix
new file mode 100644
index 0000000..f8c17dc
--- /dev/null
+++ b/common/pc/laptop/acpi_call.nix
@@ -0,0 +1,10 @@
+# acpi_call makes tlp work for newer thinkpads
+
+{ config, ... }:
+
+{
+  boot = {
+    kernelModules = [ "acpi_call" ];
+    extraModulePackages = with config.boot.kernelPackages; [ acpi_call ];
+  };
+}
diff --git a/common/pc/laptop/cpu-throttling-bug.nix b/common/pc/laptop/cpu-throttling-bug.nix
new file mode 100644
index 0000000..a44bb72
--- /dev/null
+++ b/common/pc/laptop/cpu-throttling-bug.nix
@@ -0,0 +1,38 @@
+{ config, pkgs, ... }:
+{
+  # Temporary fix for cpu throttling issues visible in the kernel log
+  # (journalctl -k) by setting the same temperature limits used by
+  # Window$
+  # See https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues
+  systemd.services.cpu-throttling = {
+    enable = true;
+    description = "Sets the offset to 3 °C, so the new trip point is 97 °C";
+    documentation = [
+      "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
+    ];
+    path = [ pkgs.msr-tools ];
+    script = "wrmsr -a 0x1a2 0x3000000";
+    serviceConfig = {
+      Type = "oneshot";
+    };
+    wantedBy = [
+      "timers.target"
+    ];
+  };
+
+  systemd.timers.cpu-throttling = {
+    enable = true;
+    description = "Set cpu heating limit to 97 °C";
+    documentation = [
+      "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
+    ];
+    timerConfig = {
+      OnActiveSec = 60;
+      OnUnitActiveSec = 60;
+      Unit = "cpu-throttling.service";
+    };
+    wantedBy = [
+      "timers.target"
+    ];
+  };
+}
-- 
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