nix-loongarch-kernel

Linux stable kernel with additional patches for LoongArch platforms.

Check available versions in tags, though staying up-to-date with main is recommended.

Patches

• Motorcomm YT6801 NIC driver
• HWMon support for Loongson 3 family processors
• PixArt PS/2 touchpad driver
• Legacy firmware boot support and AMD GPU stability fixes
• Full patch list: https://loongfans.cn/pages/sdk.html

Binary Cache

To speed up builds, you can use the binary cache provided by nix4loong.cn:

nix.extraOptions = ''
  extra-substituters = https://cache.nix4loong.cn
  extra-trusted-public-keys = cache.nix4loong.cn-1:zmkwLihdSUyy6OFSVgvK3br0EaUEczLiJgDfvOmm3pA=
'';

Alternatively, use the installation image from nix4loong.cn, which comes with the cache and the kernel pre-configured.

Usage

Option 1: NixOS Module (Recommended)

This method is recommended as it can take full advantage of the binary cache.

{
  inputs.nix-loongarch-kernel.url = "github:darkyzhou/nix-loongarch-kernel";

  outputs = { self, nixpkgs, nix-loongarch-kernel, ... }: {
    nixosConfigurations.myhost = nixpkgs.lib.nixosSystem {
      system = "loongarch64-linux";
      modules = [
        nix-loongarch-kernel.nixosModules.default
      ];
    };
  };
}

Option 2: Overlay

Note: Using an overlay may not hit the binary cache due to different derivation hashes.

{
  inputs.nix-loongarch-kernel.url = "github:darkyzhou/nix-loongarch-kernel";

  outputs = { self, nixpkgs, nix-loongarch-kernel, ... }: {
    nixosConfigurations.myhost = nixpkgs.lib.nixosSystem {
      system = "loongarch64-linux";
      modules = [
        {
          nixpkgs.overlays = [ nix-loongarch-kernel.overlay ];
          boot.kernelPackages = pkgs.linuxPackages-nix4loong;
        }
      ];
    };
  };
}

Acknowledgements

Special thanks to loongfans.cn and all the patch authors for their contributions.