gpu passtrough moved to separate file

portainer-compose-stacks/windows/unbind-gpu-from-vfio.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+# Unbind the AMD GPU from VFIO and restore it to the host (amdgpu driver)
+# Run this AFTER stopping the Windows container to restore host GPU access
+
+set -e
+
+if [ "$EUID" -ne 0 ]; then 
+    echo "Please run as root: sudo $0"
+    exit 1
+fi
+
+echo "=== Unbinding AMD GPU from VFIO ==="
+echo ""
+
+GPU_PCI="0000:c5:00.0"
+AUDIO_PCI="0000:c5:00.1"
+
+# Stop Windows container first
+echo "Checking if Windows container is running..."
+if docker ps | grep -q windows2; then
+    echo "Stopping Windows container..."
+    docker stop windows2
+    echo "✓ Container stopped"
+fi
+
+# Unbind from vfio-pci
+echo ""
+echo "Unbinding from vfio-pci..."
+if [ -e /sys/bus/pci/devices/$GPU_PCI/driver ]; then
+    echo "$GPU_PCI" > /sys/bus/pci/devices/$GPU_PCI/driver/unbind
+    echo "✓ GPU unbound from vfio-pci"
+fi
+
+if [ -e /sys/bus/pci/devices/$AUDIO_PCI/driver ]; then
+    echo "$AUDIO_PCI" > /sys/bus/pci/devices/$AUDIO_PCI/driver/unbind
+    echo "✓ Audio unbound from vfio-pci"
+fi
+
+# Remove device IDs from vfio-pci
+echo "1002 1586" > /sys/bus/pci/drivers/vfio-pci/remove_id 2>/dev/null || true
+echo "1002 1640" > /sys/bus/pci/drivers/vfio-pci/remove_id 2>/dev/null || true
+
+sleep 1
+
+# Rebind to host drivers
+echo ""
+echo "Binding back to host drivers..."
+echo "$GPU_PCI" > /sys/bus/pci/drivers_probe
+echo "$AUDIO_PCI" > /sys/bus/pci/drivers_probe
+
+sleep 2
+
+# Verify
+GPU_DRIVER=$(lspci -nnk -s c5:00.0 | grep "Kernel driver in use" | awk '{print $5}')
+AUDIO_DRIVER=$(lspci -nnk -s c5:00.1 | grep "Kernel driver in use" | awk '{print $5}')
+
+echo ""
+echo "=== Status ==="
+if [ "$GPU_DRIVER" = "amdgpu" ]; then
+    echo "✓ GPU restored to amdgpu"
+else
+    echo "⚠ GPU bound to: ${GPU_DRIVER:-none}"
+fi
+
+if [ "$AUDIO_DRIVER" = "snd_hda_intel" ]; then
+    echo "✓ Audio restored to snd_hda_intel"
+else
+    echo "⚠ Audio bound to: ${AUDIO_DRIVER:-none}"
+fi
+
+echo ""
+if [ "$GPU_DRIVER" = "amdgpu" ]; then
+    echo "✓ GPU restored to host!"
+    echo ""
+    echo "You may need to restart your display manager:"
+    echo "  sudo systemctl restart gdm3    # for GNOME"
+    echo "  sudo systemctl restart lightdm  # for XFCE/other"
+else
+    echo "⚠ GPU not fully restored. You may need to reboot."
+fi
+