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Merge pull request #73530 from eadwu/nvidia/systemd-pm

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nixos/nvidia: include systemd power management
This commit is contained in:
Florian Klink 2020-05-12 13:54:45 +02:00 committed by GitHub
commit d6f90e4f9e
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2 changed files with 62 additions and 15 deletions
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64
nixos/modules/hardware/video/nvidia.nix
View file

@ -52,6 +52,15 @@ in
];
options = {
hardware.nvidia.powerManagement.enable = mkOption {
type = types.bool;
default = false;
description = ''
Experimental power management through systemd. For more information, see
the NVIDIA docs, on Chapter 21. Configuring Power Management Support.
'';
};
hardware.nvidia.modesetting.enable = mkOption {
type = types.bool;
default = false;
@ -226,23 +235,51 @@ in
environment.systemPackages = [ nvidia_x11.bin nvidia_x11.settings ]
++ filter (p: p != null) [ nvidia_x11.persistenced ];
systemd.packages = optional cfg.powerManagement.enable nvidia_x11.out;
systemd.services = let
baseNvidiaService = state: {
description = "NVIDIA system ${state} actions";
path = with pkgs; [ kbd ];
serviceConfig = {
Type = "oneshot";
ExecStart = "${nvidia_x11.out}/bin/nvidia-sleep.sh '${state}'";
};
};
nvidiaService = sleepState: (baseNvidiaService sleepState) // {
before = [ "systemd-${sleepState}.service" ];
requiredBy = [ "systemd-${sleepState}.service" ];
};
services = (builtins.listToAttrs (map (t: nameValuePair "nvidia-${t}" (nvidiaService t)) ["hibernate" "suspend"]))
// {
nvidia-resume = (baseNvidiaService "resume") // {
after = [ "systemd-suspend.service" "systemd-hibernate.service" ];
requiredBy = [ "systemd-suspend.service" "systemd-hibernate.service" ];
};
};
in optionalAttrs cfg.powerManagement.enable services
// optionalAttrs nvidiaPersistencedEnabled {
"nvidia-persistenced" = mkIf nvidiaPersistencedEnabled {
description = "NVIDIA Persistence Daemon";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "forking";
Restart = "always";
PIDFile = "/var/run/nvidia-persistenced/nvidia-persistenced.pid";
ExecStart = "${nvidia_x11.persistenced}/bin/nvidia-persistenced --verbose";
ExecStopPost = "${pkgs.coreutils}/bin/rm -rf /var/run/nvidia-persistenced";
};
};
};
systemd.tmpfiles.rules = optional config.virtualisation.docker.enableNvidia
"L+ /run/nvidia-docker/bin - - - - ${nvidia_x11.bin}/origBin"
++ optional (nvidia_x11.persistenced != null && config.virtualisation.docker.enableNvidia)
"L+ /run/nvidia-docker/extras/bin/nvidia-persistenced - - - - ${nvidia_x11.persistenced}/origBin/nvidia-persistenced";
systemd.services."nvidia-persistenced" = mkIf nvidiaPersistencedEnabled {
description = "NVIDIA Persistence Daemon";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "forking";
Restart = "always";
PIDFile = "/var/run/nvidia-persistenced/nvidia-persistenced.pid";
ExecStart = "${nvidia_x11.persistenced}/bin/nvidia-persistenced --verbose";
ExecStopPost = "${pkgs.coreutils}/bin/rm -rf /var/run/nvidia-persistenced";
};
};
boot.extraModulePackages = [ nvidia_x11.bin ];
# nvidia-uvm is required by CUDA applications.
@ -250,7 +287,8 @@ in
optionals config.services.xserver.enable [ "nvidia" "nvidia_modeset" "nvidia_drm" ];
# If requested enable modesetting via kernel parameter.
boot.kernelParams = optional (offloadCfg.enable || cfg.modesetting.enable) "nvidia-drm.modeset=1";
boot.kernelParams = optional (offloadCfg.enable || cfg.modesetting.enable) "nvidia-drm.modeset=1"
++ optional cfg.powerManagement.enable "nvidia.NVreg_PreserveVideoMemoryAllocations=1";
# Create /dev/nvidia-uvm when the nvidia-uvm module is loaded.
services.udev.extraRules =

13
pkgs/os-specific/linux/nvidia-x11/builder.sh
View file

@ -45,6 +45,17 @@ installPhase() {
cp -prd tls "$out/lib/"
fi
# Install systemd power management executables
if [ -e nvidia-sleep.sh ]; then
sed -E 's#(PATH=).*#\1"$PATH"#' nvidia-sleep.sh > nvidia-sleep.sh.fixed
install -Dm755 nvidia-sleep.sh.fixed $out/bin/nvidia-sleep.sh
fi
if [ -e nvidia ]; then
sed -E "s#/usr(/bin/nvidia-sleep.sh)#$out\\1#" nvidia > nvidia.fixed
install -Dm755 nvidia.fixed $out/lib/systemd/system-sleep/nvidia
fi
for i in $lib32 $out; do
rm -f $i/lib/lib{glx,nvidia-wfb}.so.* # handled separately
rm -f $i/lib/libnvidia-gtk* # built from source
@ -91,7 +102,6 @@ installPhase() {
done
if [ -n "$bin" ]; then
# Install the X drivers.
mkdir -p $bin/lib/xorg/modules
@ -167,5 +177,4 @@ installPhase() {
fi
}
genericBuild