125 lines
4.4 KiB
Nix
125 lines
4.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.tlp;
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enableRDW = config.networking.networkmanager.enable;
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tlp = pkgs.tlp.override { inherit enableRDW; };
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# TODO: Use this for having proper parameters in the future
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mkTlpConfig = tlpConfig: generators.toKeyValue {
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mkKeyValue = generators.mkKeyValueDefault {
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mkValueString = val:
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if isList val then "\"" + (toString val) + "\""
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else toString val;
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} "=";
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} tlpConfig;
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in
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{
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###### interface
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options = {
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services.tlp = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable the TLP power management daemon.";
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};
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settings = mkOption {type = with types; attrsOf (oneOf [bool int float str (listOf str)]);
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default = {};
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example = {
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SATA_LINKPWR_ON_BAT = "med_power_with_dipm";
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USB_BLACKLIST_PHONE = 1;
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};
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description = ''
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Options passed to TLP. See https://linrunner.de/tlp for all supported options..
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Verbatim additional configuration variables for TLP.
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DEPRECATED: use services.tlp.config instead.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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boot.kernelModules = [ "msr" ];
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warnings = optional (cfg.extraConfig != "") ''
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Using config.services.tlp.extraConfig is deprecated and will become unsupported in a future release. Use config.services.tlp.settings instead.
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'';
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assertions = [{
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assertion = cfg.enable -> config.powerManagement.scsiLinkPolicy == null;
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message = ''
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`services.tlp.enable` and `config.powerManagement.scsiLinkPolicy` cannot be set both.
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Set `services.tlp.settings.SATA_LINKPWR_ON_AC` and `services.tlp.settings.SATA_LINKPWR_ON_BAT` instead.
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'';
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}];
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environment.etc = {
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"tlp.conf".text = (mkTlpConfig cfg.settings) + cfg.extraConfig;
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} // optionalAttrs enableRDW {
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"NetworkManager/dispatcher.d/99tlp-rdw-nm".source =
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"${tlp}/etc/NetworkManager/dispatcher.d/99tlp-rdw-nm";
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};
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environment.systemPackages = [ tlp ];
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services.tlp.settings = let
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cfg = config.powerManagement;
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maybeDefault = val: lib.mkIf (val != null) (lib.mkDefault val);
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in {
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CPU_SCALING_GOVERNOR_ON_AC = maybeDefault cfg.cpuFreqGovernor;
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CPU_SCALING_GOVERNOR_ON_BAT = maybeDefault cfg.cpuFreqGovernor;
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CPU_SCALING_MIN_FREQ_ON_AC = maybeDefault cfg.cpufreq.min;
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CPU_SCALING_MAX_FREQ_ON_AC = maybeDefault cfg.cpufreq.max;
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CPU_SCALING_MIN_FREQ_ON_BAT = maybeDefault cfg.cpufreq.min;
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CPU_SCALING_MAX_FREQ_ON_BAT = maybeDefault cfg.cpufreq.max;
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};
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services.udev.packages = [ tlp ];
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systemd = {
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# use native tlp instead because it can also differentiate between AC/BAT
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services.cpufreq.enable = false;
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packages = [ tlp ];
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# XXX: These must always be disabled/masked according to [1].
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#
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# [1]: https://github.com/linrunner/TLP/blob/a9ada09e0821f275ce5f93dc80a4d81a7ff62ae4/tlp-stat.in#L319
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sockets.systemd-rfkill.enable = false;
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services.systemd-rfkill.enable = false;
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services.tlp = {
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# XXX: The service should reload whenever the configuration changes,
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# otherwise newly set power options remain inactive until reboot (or
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# manual unit restart.)
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restartTriggers = [ config.environment.etc."tlp.conf".source ];
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# XXX: When using systemd.packages (which we do above) the [Install]
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# section of systemd units does not work (citation needed) so we manually
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# enforce it here.
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wantedBy = [ "multi-user.target" ];
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};
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services.tlp-sleep = {
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# XXX: When using systemd.packages (which we do above) the [Install]
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# section of systemd units does not work (citation needed) so we manually
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# enforce it here.
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before = [ "sleep.target" ];
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wantedBy = [ "sleep.target" ];
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# XXX: `tlp suspend` requires /var/lib/tlp to exist in order to save
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# some stuff in there. There is no way, that I know of, to do this in
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# the package itself, so we do it here instead making sure the unit
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# won't fail due to the save dir not existing.
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serviceConfig.StateDirectory = "tlp";
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};
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};
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};
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}
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