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nixos/nvidia: populating /dev with nvidia devices at boot

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Rostislav Beneš 2017-05-07 21:37:56 +02:00 committed by Franz Pletz
parent a06f839439
commit 4f91397c98
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GPG Key ID: 846FDED7792617B4
1 changed files with 6 additions and 1 deletions
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7
nixos/modules/hardware/video/nvidia.nix
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@ -62,11 +62,16 @@ in
boot.extraModulePackages = [ nvidia_x11.bin ];
# nvidia-uvm is required by CUDA applications.
boot.kernelModules = [ "nvidia-uvm" ];
boot.kernelModules = [ "nvidia-uvm" ] ++
lib.optionals config.services.xserver.enable [ "nvidia" "nvidia_modeset" "nvidia_drm" ];
# Create /dev/nvidia-uvm when the nvidia-uvm module is loaded.
services.udev.extraRules =
''
KERNEL=="nvidia", RUN+="${pkgs.stdenv.shell} -c 'mknod -m 666 /dev/nvidiactl c $(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 255'"
KERNEL=="nvidia_modeset", RUN+="${pkgs.stdenv.shell} -c 'mknod -m 666 /dev/nvidia-modeset c $(grep nvidia-frontend /proc/devices | cut -d \ -f 1) 254'"
KERNEL=="card*", SUBSYSTEM=="drm", DRIVERS=="nvidia", RUN+="${pkgs.stdenv.shell} -c 'mknod -m 666 /dev/nvidia%n c $(grep nvidia-frontend /proc/devices | cut -d \ -f 1) %n'"
KERNEL=="nvidia_uvm", RUN+="${pkgs.stdenv.shell} -c 'mknod -m 666 /dev/nvidia-uvm c $(grep nvidia-uvm /proc/devices | cut -d \ -f 1) 0'"
'';