refactor: complete rewrite

modules/nixos/hardware/gpu/amd.nix

@@ -0,0 +1,32 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (config.ooknet.hardware) gpu;
+  inherit (lib) mkIf mkDefault;
+  inherit (builtins) attrValues;
+in {
+  config = mkIf (gpu.type == "amd") {
+    hardware.graphics = {
+      extraPackages = attrValues {
+        inherit
+          (pkgs)
+          vulkan-tools
+          vulkan-loader
+          vulkan-extension-layer
+          vulkan-validation-layers
+          mesa
+          ;
+      };
+      extraPackages32 = [pkgs.driversi686Linux.amdvlk];
+    };
+    boot = {
+      initrd.kernelModules = ["amdgpu"];
+      kernelModules = ["amdgpu"];
+    };
+    environment.systemPackages = [pkgs.nvtopPackages.amd];
+    services.xserver.videoDrivers = mkDefault ["modesetting" "amdgpu"];
+  };
+}

modules/nixos/hardware/gpu/default.nix

@@ -0,0 +1,7 @@
+{
+  imports = [
+    ./amd.nix
+    ./intel.nix
+    ./nvidia.nix
+  ];
+}

modules/nixos/hardware/gpu/intel.nix

@@ -0,0 +1,39 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (config.ooknet.hardware) gpu;
+  inherit (lib) mkIf;
+  inherit (builtins) attrValues;
+in {
+  config = mkIf (gpu.type == "intel") {
+    services.xserver.videoDrivers = ["modesetting"];
+    hardware.graphics = {
+      extraPackages = attrValues {
+        inherit
+          (pkgs)
+          vaapiIntel
+          vaapiVdpau
+          libvdpau-va-gl
+          intel-compute-runtime
+          intel-media-driver
+          ;
+      };
+      extraPackages32 = attrValues {
+        inherit
+          (pkgs.pkgsi686Linux)
+          vaapiIntel
+          vaapiVdpau
+          libvdpau-va-gl
+          intel-media-driver
+          ;
+      };
+    };
+    boot.initrd.kernelModules = ["i915"];
+    environment.variables = mkIf config.hardware.graphics.enable {
+      VDPAU_DRIVER = "va_gl";
+    };
+  };
+}

modules/nixos/hardware/gpu/nvidia.nix

@@ -0,0 +1,64 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (config.ooknet.hardware) gpu;
+  inherit (lib) mkIf mkDefault;
+  inherit (builtins) attrValues;
+  # production = config.boot.kernelPackages.nvidiaPackages.production;
+  inherit (config.boot.kernelPackages.nvidiaPackages) beta;
+in {
+  config = mkIf (gpu.type == "nvidia") {
+    # need this even if using wayland
+    services.xserver.videoDrivers = ["nvidia"];
+    hardware = {
+      nvidia = {
+        open = false;
+        package = beta;
+        forceFullCompositionPipeline = true;
+        nvidiaSettings = false;
+        nvidiaPersistenced = true;
+        modesetting.enable = true;
+        powerManagement = {
+          enable = mkDefault false;
+          finegrained = mkDefault false;
+        };
+      };
+      graphics = {
+        extraPackages = [pkgs.nvidia-vaapi-driver];
+        extraPackages32 = [pkgs.pkgsi686Linux.nvidia-vaapi-driver];
+      };
+    };
+    environment.systemPackages = attrValues {
+      inherit
+        (pkgs)
+        libva
+        libva-utils
+        vulkan-loader
+        vulkan-validation-layers
+        vulkan-tools
+        vulkan-extension-layer
+        mesa
+        ;
+      inherit (pkgs.nvtopPackages) nvidia;
+    };
+    environment.sessionVariables = {
+      LIBVA_DRIVER_NAME = "nvidia";
+      NVD_BACKEND = "direct";
+    };
+
+    # https://github.com/ventureoo/nvidia-tweaks
+    services.udev.extraRules = ''
+      ACTION=="bind", SUBSYSTEM=="pci", DRIVERS=="nvidia", ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", TEST=="power/control", ATTR{power/control}="auto"
+      ACTION=="unbind", SUBSYSTEM=="pci", DRIVERS=="nvidia", ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", TEST=="power/control", ATTR{power/control}="on"
+    '';
+    boot.kernelParams = [
+      "nvidia.NVreg_UsePageAttributeTable=1"
+      "nvidia.NVreg_InitializeSystemMemoryAllocations=0"
+      "nvidia.NVreg_EnableStreamMemOPs=1"
+      "nvidia.NVreg_RegistryDwords=__REGISTRYDWORDS"
+    ];
+  };
+}