48 lines
900 B
Nix
48 lines
900 B
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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{
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imports = [ ];
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nix.settings.system-features = lib.mkForce [
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"gccarch-znver4"
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"gccarch-skylake"
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# "gccarch-alderlake" missing pkgwait
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"gccarch-x86-64-v3"
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"benchmark"
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"big-parallel"
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"kvm"
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"nixos-test"
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];
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# nixpkgs.hostPlatform = {
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# gcc.arch = "znver4";
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# gcc.tune = "znver4";
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# system = "x86_64-linux";
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# };
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nixpkgs.overlays = [
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(
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self: super:
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let
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optimizeWithFlags =
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pkg: flags:
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pkg.overrideAttrs (old: {
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NIX_CFLAGS_COMPILE = [ (old.NIX_CFLAGS_COMPILE or "") ] ++ flags;
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});
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in
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{
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linux_znver4 = optimizeWithFlags super.linux_zen [
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"-march=znver4"
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"-mtune=znver4"
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];
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}
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)
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];
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boot.kernelPackages = lib.mkIf (!config.me.buildingIso) (pkgs.linuxPackagesFor pkgs.linux_znver4);
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}
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