40 lines
1.5 KiB
Nix
40 lines
1.5 KiB
Nix
{ config, lib, pkgs, ... }:
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# check if it's working:
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# nix-shell -p nvme-cli --command "sudo nvme get-feature -f 0x0c -H /dev/nvme0" | grep Enable
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let
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cfg = config.linux_nvme;
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inherit (lib) mkIf mkOption mkEnableOption;
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in
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{
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options.linux_nvme = {
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basekpkgs = mkOption { default = pkgs.linuxPackages_latest; };
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gofaster = mkEnableOption "enable parallel building on kernel";
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nvmepatch = mkEnableOption "enable nvme patch";
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};
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config.boot = rec {
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# gotta go faster
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kernelPackages = mkIf cfg.gofaster (cfg.basekpkgs // {
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kernel = cfg.basekpkgs.kernel.overrideDerivation (attr: {
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enableParallelBuilding = true;
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});
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});
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kernelPatches = mkIf cfg.nvmepatch (let
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newerThan = v: builtins.compareVersions config.boot.kernelPackages.kernel.version v > -1;
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# https://github.com/damige/linux-nvme/
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linux-nvme = pkgs.fetchFromGitHub {
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owner = "damige";
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repo = "linux-nvme";
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rev = "4e9b1de7ad5386f6c8c208d81005a77d79460d26";
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sha256 = "151pnv1gjrcmlvw8bx0ndpvn254jjy394h8yr3sgh2gqbc5i1aqp";
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};
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mkpatches = dir: map (name: { patch = "${linux-nvme}/patches/${dir}/${name}.patch"; inherit name; });
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in
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if newerThan "4.11" then [] else
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if newerThan "4.10" then (mkpatches "4.10.x" ["APST"]) else
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if newerThan "4.9" then (mkpatches "4.9.x" ["APST" "pm_qos1" "pm_qos2" "pm_qos3" "nvme"]) else
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if newerThan "4.8" then (mkpatches "4.8.x" ["nvmepatch1-V4" "nvmepatch2-V4" "nvmepatch3-V4"]) else
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throw "unknown kernel version");
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};
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}
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