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Merge pull request #181674 from nrdxp/nvidia-udev

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nvidia: improve robustness of udev rules
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Timothy DeHerrera 2022-07-21 09:00:47 -07:00 committed by GitHub
commit e8c3d13d00
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1 changed files with 3 additions and 4 deletions
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7
nixos/modules/hardware/video/nvidia.nix
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@ -392,10 +392,9 @@ in
services.udev.extraRules =
''
# Create /dev/nvidia-uvm when the nvidia-uvm module is loaded.
KERNEL=="nvidia", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidiactl c 195 255'"
KERNEL=="nvidia_modeset", RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia-modeset c 195 254'"
KERNEL=="card*", SUBSYSTEM=="drm", DRIVERS=="nvidia", PROGRAM="${pkgs.gnugrep}/bin/grep 'Device Minor:' /proc/driver/nvidia/gpus/%b/information", \
RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia%c{3} c 195 %c{3}"
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 (