Update nixpkgs / dependencies (mesa-25.3.0)

Almost no need to touch mesa anymore.. except for the radeon virtio flag

flake.lock

@@ -56,11 +56,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1761672384,
-        "narHash": "sha256-o9KF3DJL7g7iYMZq9SWgfS1BFlNbsm6xplRjVlOCkXI=",
+        "lastModified": 1763966396,
+        "narHash": "sha256-6eeL1YPcY1MV3DDStIDIdy/zZCDKgHdkCmsrLJFiZf0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "08dacfca559e1d7da38f3cf05f1f45ee9bfd213c",
+        "rev": "5ae3b07d8d6527c42f17c876e404993199144b6a",
         "type": "github"
       },
       "original": {

nixosModules/testvm.nix

@@ -16,7 +16,7 @@
     pkgs.xorg.xeyes
     pkgs.xterm
     # pkgs.vkquake # build broken: Program 'spirv-remap' not found
-    pkgs.veloren
+    # pkgs.veloren # broken after update?
     pkgs.kdePackages.kate
     pkgs.adwaita-icon-theme
     pkgs.amberol

packages/mesa/default.nix

@@ -1,16 +1,10 @@
-{ mesa, lib }:
+{ mesa, lib, stdenv }:
 
 (mesa.override {
-  vulkanDrivers = [
-    "amd"
-    "intel"
-    "microsoft-experimental" # removing this breaks the build
-    "nouveau"
-    "swrast"
-    "virtio"
-    "gfxstream" # probably not going to use this though
-  ];
+  # nothing currently
 }).overrideAttrs (new: old: {
-  mesonFlags = old.mesonFlags ++ [ (lib.mesonBool "amdgpu-virtio" true) ];
-  patches = old.patches ++ [ ../../radvmmio.patch ]; # already merged to git
+  mesonFlags = old.mesonFlags ++
+    lib.optionals stdenv.hostPlatform.isx86_64 [ (lib.mesonBool "amdgpu-virtio" true) ];
+    # not that amdgpu can't be found on aarch64 but let's avoid rebuilds for now
+  # patches = old.patches ++ [ ];
 })

radvmmio.patch

@@ -1,42 +0,0 @@
-From c2fd030644cf2074f9d2ffd155839b2e943473d0 Mon Sep 17 00:00:00 2001
-From: Val Packett <val@packett.cool>
-Date: Wed, 10 Sep 2025 15:44:41 -0300
-Subject: [PATCH] radv: detect platform:virtio-mmio devices for virtgpu native
- context
-
-VirtIO devices can be configured as platform devices instead of PCI,
-which is especially common in microVM projects like libkrun.
-
-Let's allow RADV to probe MMIO virtgpu devices.
-
-Signed-off-by: Val Packett <val@invisiblethingslab.com>
----
- src/amd/vulkan/radv_physical_device.c | 7 ++++---
- 1 file changed, 4 insertions(+), 3 deletions(-)
-
-diff --git a/src/amd/vulkan/radv_physical_device.c b/src/amd/vulkan/radv_physical_device.c
-index 07b5b000b3ae..cd6f4c3488a1 100644
---- a/src/amd/vulkan/radv_physical_device.c
-+++ b/src/amd/vulkan/radv_physical_device.c
-@@ -2507,14 +2507,15 @@ create_drm_physical_device(struct vk_instance *vk_instance, struct _drmDevice *d
- #ifndef _WIN32
-    bool supported_device = false;
- 
--   if (!(device->available_nodes & (1 << DRM_NODE_RENDER)) || device->bustype != DRM_BUS_PCI)
-+   if (!(device->available_nodes & (1 << DRM_NODE_RENDER)))
-       return VK_ERROR_INCOMPATIBLE_DRIVER;
- 
- #ifdef HAVE_AMDGPU_VIRTIO
--   supported_device |= device->deviceinfo.pci->vendor_id == VIRTGPU_PCI_VENDOR_ID;
-+   supported_device |= device->bustype == DRM_BUS_PCI && device->deviceinfo.pci->vendor_id == VIRTGPU_PCI_VENDOR_ID;
-+   supported_device |= device->bustype == DRM_BUS_PLATFORM; /* virtio-mmio */
- #endif
- 
--   supported_device |= device->deviceinfo.pci->vendor_id == ATI_VENDOR_ID;
-+   supported_device |= device->bustype == DRM_BUS_PCI && device->deviceinfo.pci->vendor_id == ATI_VENDOR_ID;
- 
-    if (!supported_device)
-       return VK_ERROR_INCOMPATIBLE_DRIVER;
--- 
-2.50.1
-