lots

hardware/gpu/rocm.nix

@@ -0,0 +1,25 @@
+{ pkgs, ... }:
+{
+  # assumes common-gpu-amd from nixos-hardware is also added
+  # TODO: should we move it from flake.nix to here?
+
+  # nixos-hardware common-amd option
+  hardware.amdgpu.opencl = true;
+
+
+  nixpkgs.config.openglSupport = true; # why is this not set by hardware.opengl.enable ?
+  nixpkgs.config.rocmSupport = true;
+
+
+  hardware.opengl.enable = true;
+  # https://libreddit.noximilien.pbsds.net/r/archlinux/comments/nih9c9/amdgpu_vs_modesetting_in_current_510_kernels_xorg/
+  services.xserver.videoDrivers = [ "amdgpu" ]; # use gpu, adaptive sync and and hardware page flipping
+  #services.xserver.videoDrivers = [ "modesetting" ]; # integrated (non-accelerated) framebuffer, KMS
+
+  systemd.tmpfiles.rules = [
+    "L+    /opt/rocm/hip   -    -    -     -    ${pkgs.hip}"
+  ];
+  environment.systemPackages = with pkgs; [
+    nvtop-amd
+  ];
+}