AMD: add configurations for graphics cards

common/gpu/amd/default.nix

@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+{
+  boot.initrd.kernelModules = [ "amdgpu" ];
+  services.xserver.videoDrivers = [ "amdgpu" ];
+  
+  hardware.opengl.extraPackages = with pkgs; [
+    rocm-opencl-icd
+    rocm-opencl-runtime
+    amdvlk
+  ];
+
+  hardware.opengl = {
+    driSupport = lib.mkDefault true;
+    driSupport32Bit = lib.mkDefault true;
+  };
+} 

common/gpu/amd/sea-islands/default.nix

@@ -0,0 +1,4 @@
+{
+  imports = [ ../. ];
+  boot.kernelParams = [ "radeon.cik_support=0" "amdgpu.cik_support=1" ];
+}

common/gpu/amd/southern-islands/default.nix

@@ -0,0 +1,4 @@
+{
+  imports = [ ../. ];
+  boot.kernelParams = [ "radeon.si_support=0" "amdgpu.si_support=1" ];
+}