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nixos/nvidia: only apply workarounds for finegrained when needed

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Accoriding to the doc[1], these workarounds is no needed for kernel
5.5 and newer.

[1]: https://download.nvidia.com/XFree86/Linux-x86_64/515.43.04/README/dynamicpowermanagement.html#KnownIssuesAndW6426e
This commit is contained in:
linj 2022-05-23 05:01:40 +08:00
parent dc706dddd0
commit 97a855ca0e
1 changed files with 4 additions and 3 deletions
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7
nixos/modules/hardware/video/nvidia.nix
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@ -367,7 +367,8 @@ in
RUN+="${pkgs.runtimeShell} -c 'mknod -m 666 /dev/nvidia%c{3} c 195 %c{3}"
KERNEL=="nvidia_uvm", RUN+="${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 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"
@ -376,7 +377,7 @@ in
# 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"
@ -384,7 +385,7 @@ in
# 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"