nixos/profiles/hardware/apu6b4.nix

   1 {
   2   pkgs,
   3   lib,
   4   config,
   5   ...
   6 }:
   7 with lib;
   8 {
   9
  10   nixpkgs.hostPlatform = {
  11     system = "x86_64-linux";
  12     config = "x86_64-unknown-linux-gnu";
  13   };
  14   _module.args.CPUs = 4;
  15   hardware.cpu.amd.updateMicrocode = mkDefault config.hardware.enableRedistributableFirmware;
  16   powerManagement.cpuFreqGovernor = mkDefault "ondemand";
  17
  18   # Too CPU hungry for this hardware, for too little MiB saved
  19   nix.settings.auto-optimise-store = false;
  20
  21   # https://insanity.industries/post/sata-power-consumption/
  22   services.udev.extraRules = ''
  23     SUBSYSTEM=="scsi_host", KERNEL=="host*", ATTR{link_power_management_policy}="med_power_with_dipm"
  24   '';
  25
  26   boot.loader = {
  27     grub = {
  28       enable = true;
  29       copyKernels = true;
  30       configurationLimit = mkDefault 1;
  31       # efiSupport = true;
  32       # In case canTouchEfiVariables doesn't work
  33       #efiInstallAsRemovable = true;
  34       devices = [
  35         # Completed in the importing configuration
  36       ];
  37       /*
  38           mirroredBoots = [
  39         { devices = [ "${disk_id}" ];
  40           path    = "/boot${bootnum}";
  41         }
  42           ];
  43       */
  44     };
  45     /*
  46       efi = {
  47       canTouchEfiVariables = true;
  48       efiSysMountPoint = "/boot/efi";
  49       };
  50     */
  51   };
  52
  53   boot.initrd = {
  54     availableKernelModules = [
  55       "ahci"
  56       "ehci_pci"
  57       "sd_mod"
  58       "sg"
  59       "uas"
  60     ];
  61     kernelModules = [
  62       # Ethernet driver
  63       "igb"
  64       # Enable to switch to stage-2 from the SD card
  65       "sdhci_pci"
  66     ];
  67   };
  68
  69   boot.consoleLogLevel = mkDefault 7;
  70   boot.kernelParams = [
  71     "gfxpayload=text"
  72     "console=ttyS0,115200n8"
  73     # Use arc_summary to print stats
  74     #"zfs.zfs_arc_max=${toString (500 * 1024 * 1024)}" # bytes
  75   ];
  76
  77   environment.systemPackages = [
  78     pkgs.flashrom
  79     pkgs.pciutils
  80   ];
  81 }