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nixos/nvidia: update description of BusIds for caveats

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MakiseKurisu
2025-03-11 13:41:34 +08:00
parent 0645e675ef
commit 72ffdcd4a6
1 changed files with 24 additions and 6 deletions
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nixos/modules/hardware/video/nvidia.nix
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@@ -120,30 +120,48 @@ in
prime.nvidiaBusId = lib.mkOption {
type = busIDType;
default = "";
example = "PCI:1:0:0";
example = "PCI:1@0:0:0";
description = ''
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".
shows the NVIDIA GPU at "0001:02:03.4", set this option to "PCI:2@1:3:4".
lspci might omit the PCI domain (0001 in above example) if it is zero.
In which case, use "@0" instead.
Please be aware that this option takes decimal address while lspci reports
hexadecimal address. So for device at domain "10000", use "@65536".
'';
};
prime.intelBusId = lib.mkOption {
type = busIDType;
default = "";
example = "PCI:0:2:0";
example = "PCI:0@0:2:0";
description = ''
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".
shows the Intel GPU at "0001:02:03.4", set this option to "PCI:2@1:3:4".
lspci might omit the PCI domain (0001 in above example) if it is zero.
In which case, use "@0" instead.
Please be aware that this option takes decimal address while lspci reports
hexadecimal address. So for device at domain "10000", use "@65536".
'';
};
prime.amdgpuBusId = lib.mkOption {
type = busIDType;
default = "";
example = "PCI:4:0:0";
example = "PCI:4@0:0:0";
description = ''
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".
shows the AMD APU at "0001:02:03.4", set this option to "PCI:2@1:3:4".
lspci might omit the PCI domain (0001 in above example) if it is zero.
In which case, use "@0" instead.
Please be aware that this option takes decimal address while lspci reports
hexadecimal address. So for device at domain "10000", use "@65536".
'';
};