feat(hardware-setup): Enable amdgpu on supported systems

Enable amdgpu on systems using the radeon driver. The arguments for Southern Islands and
Sea Islands do not conflict so just enable both

Do not block this based on image flavor as some people may be using mixed GPU systems that
have both an AMD and Nvidia card

Author: EyeCantCU

system_files/desktop/shared/usr/bin/bazzite-hardware-setup

@@ -83,6 +83,40 @@ elif [[ $IMAGE_NAME =~ "deck"  ]]; then
   systemctl --global disable --now sdgyrodsu.service
 fi
 
+if grep -qz "Kernel driver in use: radeon" <<< $(lspci -k | grep -A 3 -E "(VGA|3D)"); then
+  if [[ ! $KARGS =~ "radeon.si_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --append=radeon.si_support=0"
+  fi
+
+  if [[ ! $KARGS =~ "radeon.cik_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --append=radeon.cik_support=0"
+  fi
+
+  if [[ ! $KARGS =~ "amdgpu.si_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --append=amdgpu.si_support=1"
+  fi
+
+  if [[ ! $KARGS =~ "amdgpu.cik_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --append=amdgpu.cik_support=1"
+  fi
+elif grep -qvz "Kernel driver in use: amdgpu" <<< $(lspci -k | grep -A 3 -E "(VGA|3D)"); then
+  if [[ $KARGS =~ "radeon.si_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --delete=radeon.si_support=0"
+  fi
+
+  if [[ $KARGS =~ "radeon.cik_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --delete=radeon.cik_support=0"
+  fi
+
+  if [[ $KARGS =~ "amdgpu.si_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --delete=amdgpu.si_support=1"
+  fi
+
+  if [[ $KARGS =~ "amdgpu.cik_support" ]]; then
+    NEEDED_KARGS="$NEEDED_KARGS --delete=amdgpu.cik_support=1"
+  fi
+fi
+
 if [[ $IMAGE_FLAVOR = "nvidia"  ]]; then
   echo "Checking for needed karg changes (Nvidia)"