3 files changed, 51 insertions, 0 deletions
diff --git a/hosts/tiamat/hardware/cpu.nix b/hosts/tiamat/hardware/cpu.nix
new file mode 100644
index 00000000..6859f72a
--- /dev/null
+++ b/hosts/tiamat/hardware/cpu.nix
@@ -0,0 +1,4 @@
+{config, ...}: {
+  powerManagement.cpuFreqGovernor = "powersave";
+  hardware.cpu.intel.updateMicrocode = true; # Why not?
+}
diff --git a/hosts/tiamat/hardware/default.nix b/hosts/tiamat/hardware/default.nix
new file mode 100644
index 00000000..bd7241b3
--- /dev/null
+++ b/hosts/tiamat/hardware/default.nix
@@ -0,0 +1,28 @@
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix") # TODO is this necessary?
+    ./cpu.nix
+    ./gpu.nix
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+
+  system.fileSystemLayouts = {
+    enable = true;
+    mainDisk = "/dev/disk/by-uuid/<uuid>";
+    efiDisk = "/dev/disk/by-uuid/<uuid>";
+  };
+
+  boot = {
+    kernelModules = ["kvm-amd"];
+
+    # TODO check this:
+    initrd.availableKernelModules = ["xhci_pci" "nvme" "rtsx_pci_sdmmc"];
+  };
+}
diff --git a/hosts/tiamat/hardware/gpu.nix b/hosts/tiamat/hardware/gpu.nix
new file mode 100644
index 00000000..741e8882
--- /dev/null
+++ b/hosts/tiamat/hardware/gpu.nix
@@ -0,0 +1,19 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: {
+  nixpkgs.config.packageOverrides = pkgs: {
+    vaapiIntel = pkgs.vaapiIntel.override {enableHybridCodec = true;};
+  };
+  hardware.opengl = {
+    enable = true;
+    extraPackages = with pkgs; [
+      intel-media-driver # LIBVA_DRIVER_NAME=iHD
+      vaapiIntel # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
+      vaapiVdpau
+      libvdpau-va-gl
+    ];
+  };
+}