nixpkgs/nixos/modules/hardware/video/nvidia.nix
pennae 2e751c0772 treewide: automatically md-convert option descriptions
the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
2022-07-30 15:16:34 +02:00

431 lines
18 KiB
Nix

# This module provides the proprietary NVIDIA X11 / OpenGL drivers.
{ config, lib, pkgs, ... }:
with lib;
let
nvidia_x11 = let
drivers = config.services.xserver.videoDrivers;
isDeprecated = str: (hasPrefix "nvidia" str) && (str != "nvidia");
hasDeprecated = drivers: any isDeprecated drivers;
in if (hasDeprecated drivers) then
throw ''
Selecting an nvidia driver has been modified for NixOS 19.03. The version is now set using `hardware.nvidia.package`.
''
else if (elem "nvidia" drivers) then cfg.package else null;
enabled = nvidia_x11 != null;
cfg = config.hardware.nvidia;
pCfg = cfg.prime;
syncCfg = pCfg.sync;
offloadCfg = pCfg.offload;
primeEnabled = syncCfg.enable || offloadCfg.enable;
nvidiaPersistencedEnabled = cfg.nvidiaPersistenced;
nvidiaSettings = cfg.nvidiaSettings;
busIDType = types.strMatching "([[:print:]]+[\:\@][0-9]{1,3}\:[0-9]{1,2}\:[0-9])?";
in
{
imports =
[
(mkRenamedOptionModule [ "hardware" "nvidia" "optimus_prime" "enable" ] [ "hardware" "nvidia" "prime" "sync" "enable" ])
(mkRenamedOptionModule [ "hardware" "nvidia" "optimus_prime" "allowExternalGpu" ] [ "hardware" "nvidia" "prime" "sync" "allowExternalGpu" ])
(mkRenamedOptionModule [ "hardware" "nvidia" "optimus_prime" "nvidiaBusId" ] [ "hardware" "nvidia" "prime" "nvidiaBusId" ])
(mkRenamedOptionModule [ "hardware" "nvidia" "optimus_prime" "intelBusId" ] [ "hardware" "nvidia" "prime" "intelBusId" ])
];
options = {
hardware.nvidia.powerManagement.enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Experimental power management through systemd. For more information, see
the NVIDIA docs, on Chapter 21. Configuring Power Management Support.
'';
};
hardware.nvidia.powerManagement.finegrained = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Experimental power management of PRIME offload. For more information, see
the NVIDIA docs, chapter 22. PCI-Express runtime power management.
'';
};
hardware.nvidia.modesetting.enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Enable kernel modesetting when using the NVIDIA proprietary driver.
Enabling this fixes screen tearing when using Optimus via PRIME (see
{option}`hardware.nvidia.prime.sync.enable`. This is not enabled
by default because it is not officially supported by NVIDIA and would not
work with SLI.
'';
};
hardware.nvidia.prime.nvidiaBusId = mkOption {
type = busIDType;
default = "";
example = "PCI:1:0:0";
description = lib.mdDoc ''
Bus ID of the NVIDIA GPU. You can find it using lspci; for example if lspci
shows the NVIDIA GPU at "01:00.0", set this option to "PCI:1:0:0".
'';
};
hardware.nvidia.prime.intelBusId = mkOption {
type = busIDType;
default = "";
example = "PCI:0:2:0";
description = lib.mdDoc ''
Bus ID of the Intel GPU. You can find it using lspci; for example if lspci
shows the Intel GPU at "00:02.0", set this option to "PCI:0:2:0".
'';
};
hardware.nvidia.prime.amdgpuBusId = mkOption {
type = busIDType;
default = "";
example = "PCI:4:0:0";
description = lib.mdDoc ''
Bus ID of the AMD APU. You can find it using lspci; for example if lspci
shows the AMD APU at "04:00.0", set this option to "PCI:4:0:0".
'';
};
hardware.nvidia.prime.sync.enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Enable NVIDIA Optimus support using the NVIDIA proprietary driver via PRIME.
If enabled, the NVIDIA GPU will be always on and used for all rendering,
while enabling output to displays attached only to the integrated Intel GPU
without a multiplexer.
Note that this option only has any effect if the "nvidia" driver is specified
in {option}`services.xserver.videoDrivers`, and it should preferably
be the only driver there.
If this is enabled, then the bus IDs of the NVIDIA and Intel GPUs have to be
specified ({option}`hardware.nvidia.prime.nvidiaBusId` and
{option}`hardware.nvidia.prime.intelBusId`).
If you enable this, you may want to also enable kernel modesetting for the
NVIDIA driver ({option}`hardware.nvidia.modesetting.enable`) in order
to prevent tearing.
Note that this configuration will only be successful when a display manager
for which the {option}`services.xserver.displayManager.setupCommands`
option is supported is used.
'';
};
hardware.nvidia.prime.sync.allowExternalGpu = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Configure X to allow external NVIDIA GPUs when using optimus.
'';
};
hardware.nvidia.prime.offload.enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Enable render offload support using the NVIDIA proprietary driver via PRIME.
If this is enabled, then the bus IDs of the NVIDIA and Intel GPUs have to be
specified ({option}`hardware.nvidia.prime.nvidiaBusId` and
{option}`hardware.nvidia.prime.intelBusId`).
'';
};
hardware.nvidia.nvidiaSettings = mkOption {
default = true;
type = types.bool;
description = lib.mdDoc ''
Whether to add nvidia-settings, NVIDIA's GUI configuration tool, to
systemPackages.
'';
};
hardware.nvidia.nvidiaPersistenced = mkOption {
default = false;
type = types.bool;
description = lib.mdDoc ''
Update for NVIDA GPU headless mode, i.e. nvidia-persistenced. It ensures all
GPUs stay awake even during headless mode.
'';
};
hardware.nvidia.forceFullCompositionPipeline = lib.mkOption {
default = false;
type = types.bool;
description = lib.mdDoc ''
Whether to force-enable the full composition pipeline.
This sometimes fixes screen tearing issues.
This has been reported to reduce the performance of some OpenGL applications and may produce issues in WebGL.
It also drastically increases the time the driver needs to clock down after load.
'';
};
hardware.nvidia.package = lib.mkOption {
type = types.package;
default = config.boot.kernelPackages.nvidiaPackages.stable;
defaultText = literalExpression "config.boot.kernelPackages.nvidiaPackages.stable";
description = lib.mdDoc ''
The NVIDIA X11 derivation to use.
'';
example = literalExpression "config.boot.kernelPackages.nvidiaPackages.legacy_340";
};
hardware.nvidia.open = lib.mkOption {
type = lib.types.bool;
default = false;
description = lib.mdDoc ''
Whether to use the open source kernel module
'';
};
};
config = let
igpuDriver = if pCfg.intelBusId != "" then "modesetting" else "amdgpu";
igpuBusId = if pCfg.intelBusId != "" then pCfg.intelBusId else pCfg.amdgpuBusId;
in mkIf enabled {
assertions = [
{
assertion = primeEnabled -> pCfg.intelBusId == "" || pCfg.amdgpuBusId == "";
message = ''
You cannot configure both an Intel iGPU and an AMD APU. Pick the one corresponding to your processor.
'';
}
{
assertion = primeEnabled -> pCfg.nvidiaBusId != "" && (pCfg.intelBusId != "" || pCfg.amdgpuBusId != "");
message = ''
When NVIDIA PRIME is enabled, the GPU bus IDs must configured.
'';
}
{
assertion = offloadCfg.enable -> versionAtLeast nvidia_x11.version "435.21";
message = "NVIDIA PRIME render offload is currently only supported on versions >= 435.21.";
}
{
assertion = !(syncCfg.enable && offloadCfg.enable);
message = "Only one NVIDIA PRIME solution may be used at a time.";
}
{
assertion = !(syncCfg.enable && cfg.powerManagement.finegrained);
message = "Sync precludes powering down the NVIDIA GPU.";
}
{
assertion = cfg.powerManagement.finegrained -> offloadCfg.enable;
message = "Fine-grained power management requires offload to be enabled.";
}
{
assertion = cfg.powerManagement.enable -> (
builtins.pathExists (cfg.package.out + "/bin/nvidia-sleep.sh") &&
builtins.pathExists (cfg.package.out + "/lib/systemd/system-sleep/nvidia")
);
message = "Required files for driver based power management don't exist.";
}
{
assertion = cfg.open -> (cfg.package ? open && cfg.package ? firmware);
message = "This version of NVIDIA driver does not provide a corresponding opensource kernel driver";
}
];
# If Optimus/PRIME is enabled, we:
# - Specify the configured NVIDIA GPU bus ID in the Device section for the
# "nvidia" driver.
# - Add the AllowEmptyInitialConfiguration option to the Screen section for the
# "nvidia" driver, in order to allow the X server to start without any outputs.
# - Add a separate Device section for the Intel GPU, using the "modesetting"
# driver and with the configured BusID.
# - OR add a separate Device section for the AMD APU, using the "amdgpu"
# driver and with the configures BusID.
# - Reference that Device section from the ServerLayout section as an inactive
# device.
# - Configure the display manager to run specific `xrandr` commands which will
# configure/enable displays connected to the Intel iGPU / AMD APU.
services.xserver.useGlamor = mkDefault offloadCfg.enable;
services.xserver.drivers = let
in optional primeEnabled {
name = igpuDriver;
display = offloadCfg.enable;
modules = optional (igpuDriver == "amdgpu") [ pkgs.xorg.xf86videoamdgpu ];
deviceSection = ''
BusID "${igpuBusId}"
${optionalString (syncCfg.enable && igpuDriver != "amdgpu") ''Option "AccelMethod" "none"''}
'';
} ++ singleton {
name = "nvidia";
modules = [ nvidia_x11.bin ];
display = !offloadCfg.enable;
deviceSection = optionalString primeEnabled
''
BusID "${pCfg.nvidiaBusId}"
${optionalString syncCfg.allowExternalGpu "Option \"AllowExternalGpus\""}
'';
screenSection =
''
Option "RandRRotation" "on"
'' + optionalString syncCfg.enable ''
Option "AllowEmptyInitialConfiguration"
'' + optionalString cfg.forceFullCompositionPipeline ''
Option "metamodes" "nvidia-auto-select +0+0 {ForceFullCompositionPipeline=On}"
Option "AllowIndirectGLXProtocol" "off"
Option "TripleBuffer" "on"
''
;
};
services.xserver.serverLayoutSection = optionalString syncCfg.enable ''
Inactive "Device-${igpuDriver}[0]"
'' + optionalString offloadCfg.enable ''
Option "AllowNVIDIAGPUScreens"
'';
services.xserver.displayManager.setupCommands = let
sinkGpuProviderName = if igpuDriver == "amdgpu" then
# find the name of the provider if amdgpu
"`${pkgs.xorg.xrandr}/bin/xrandr --listproviders | ${pkgs.gnugrep}/bin/grep -i AMD | ${pkgs.gnused}/bin/sed -n 's/^.*name://p'`"
else
igpuDriver;
in optionalString syncCfg.enable ''
# Added by nvidia configuration module for Optimus/PRIME.
${pkgs.xorg.xrandr}/bin/xrandr --setprovideroutputsource "${sinkGpuProviderName}" NVIDIA-0
${pkgs.xorg.xrandr}/bin/xrandr --auto
'';
environment.etc."nvidia/nvidia-application-profiles-rc" = mkIf nvidia_x11.useProfiles {
source = "${nvidia_x11.bin}/share/nvidia/nvidia-application-profiles-rc";
};
# 'nvidia_x11' installs it's files to /run/opengl-driver/...
environment.etc."egl/egl_external_platform.d".source =
"/run/opengl-driver/share/egl/egl_external_platform.d/";
hardware.opengl.extraPackages = [
nvidia_x11.out
pkgs.nvidia-vaapi-driver
];
hardware.opengl.extraPackages32 = [
nvidia_x11.lib32
pkgs.pkgsi686Linux.nvidia-vaapi-driver
];
environment.systemPackages = [ nvidia_x11.bin ]
++ optionals cfg.nvidiaSettings [ nvidia_x11.settings ]
++ optionals nvidiaPersistencedEnabled [ 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 - - - - ${nvidia_x11.persistenced}/origBin/nvidia-persistenced";
boot.extraModulePackages = if cfg.open then [ nvidia_x11.open ] else [ nvidia_x11.bin ];
hardware.firmware = lib.optional cfg.open nvidia_x11.firmware;
# nvidia-uvm is required by CUDA applications.
boot.kernelModules = [ "nvidia-uvm" ] ++
optionals config.services.xserver.enable [ "nvidia" "nvidia_modeset" "nvidia_drm" ];
# If requested enable modesetting via kernel parameter.
boot.kernelParams = optional (offloadCfg.enable || cfg.modesetting.enable) "nvidia-drm.modeset=1"
++ optional cfg.powerManagement.enable "nvidia.NVreg_PreserveVideoMemoryAllocations=1"
++ optional cfg.open "nvidia.NVreg_OpenRmEnableUnsupportedGpus=1";
services.udev.extraRules =
''
# Create /dev/nvidia-uvm when the nvidia-uvm module is loaded.
KERNEL=="nvidia", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidiactl c $$(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 255'"
KERNEL=="nvidia", RUN+="${pkgs.runtimeShell} -c 'for i in $$(cat /proc/driver/nvidia/gpus/*/information | grep Minor | cut -d \ -f 4); do mknod -m 666 /dev/nvidia$${i} c $$(grep nvidia-frontend /proc/devices | cut -d \ -f 1) $${i}; done'"
KERNEL=="nvidia_modeset", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-modeset c $$(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 254'"
KERNEL=="nvidia_uvm", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-uvm c $$(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 0'"
KERNEL=="nvidia_uvm", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-uvm-tools c $$(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 1'"
'' + optionalString cfg.powerManagement.finegrained (
optionalString (versionOlder config.boot.kernelPackages.kernel.version "5.5") ''
# Remove NVIDIA USB xHCI Host Controller devices, if present
ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c0330", ATTR{remove}="1"
# Remove NVIDIA USB Type-C UCSI devices, if present
ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c8000", ATTR{remove}="1"
# Remove NVIDIA Audio devices, if present
ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x040300", ATTR{remove}="1"
'' + ''
# Enable runtime PM for NVIDIA VGA/3D controller devices on driver bind
ACTION=="bind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030000", TEST=="power/control", ATTR{power/control}="auto"
ACTION=="bind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030200", TEST=="power/control", ATTR{power/control}="auto"
# Disable runtime PM for NVIDIA VGA/3D controller devices on driver unbind
ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030000", TEST=="power/control", ATTR{power/control}="on"
ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x030200", TEST=="power/control", ATTR{power/control}="on"
'');
boot.extraModprobeConfig = mkIf cfg.powerManagement.finegrained ''
options nvidia "NVreg_DynamicPowerManagement=0x02"
'';
boot.blacklistedKernelModules = [ "nouveau" "nvidiafb" ];
services.acpid.enable = true;
};
}