nixos/profiles/hardware/apu2e4.nix

   1 { pkgs, lib, config, ... }:
   2 {
   3
   4 nixpkgs.hostPlatform = {
   5   system = "x86_64-linux";
   6   config = "x86_64-unknown-linux-gnu";
   7 };
   8 _module.args.CPUs = 4;
   9 hardware.cpu.amd.updateMicrocode = true;
  10
  11 # Too CPU hungry for this hardware, for too little Mio saved
  12 nix.settings.auto-optimise-store = false;
  13
  14 powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
  15
  16 # https://insanity.industries/post/sata-power-consumption/
  17 services.udev.extraRules = ''
  18   SUBSYSTEM=="scsi_host", KERNEL=="host*", ATTR{link_power_management_policy}="med_power_with_dipm"
  19 '';
  20
  21 boot.loader = {
  22   grub = {
  23     enable = true;
  24     version = 2;
  25     copyKernels = true;
  26     configurationLimit = 1;
  27     # efiSupport = true;
  28     # In case canTouchEfiVariables doesn't work
  29     #efiInstallAsRemovable = true;
  30     devices = [
  31       # Completed in the importing configuration
  32     ];
  33     /*
  34     mirroredBoots = [
  35       { devices = [ "${disk_id}" ];
  36         path    = "/boot${bootnum}";
  37       }
  38     ];
  39     */
  40   };
  41   /*
  42   efi = {
  43     canTouchEfiVariables = true;
  44     efiSysMountPoint = "/boot/efi";
  45   };
  46   */
  47 };
  48
  49 boot.initrd = {
  50   availableKernelModules = [
  51     "ahci"
  52     "ehci_pci"
  53     "sd_mod"
  54     "sg"
  55     "uas"
  56     # Ethernet driver
  57     "igb"
  58     # Make the AES modules available at initrd,
  59     # to speedup the deciphering of the root.
  60     #"aes_x86_64"
  61     "aesni_intel"
  62     "cryptd"
  63   ];
  64   kernelModules = [
  65     "igb"
  66     # Enable boot from SD card
  67     "sdhci_pci"
  68   ];
  69 };
  70
  71 boot.kernelParams = [
  72   "gfxpayload=text"
  73   #"console=tty0"
  74   "console=ttyS0,115200n8"
  75   # Use arc_summary to print stats
  76   #"zfs.zfs_arc_max=${toString (500 * 1024 * 1024)}" # bytes
  77 ];
  78
  79 environment.systemPackages = [
  80   pkgs.pciutils
  81   pkgs.flashrom
  82 ];
  83 }