build: Add AMD GOP injection

resources/build/graphics_audio.py

@@ -277,6 +277,12 @@ class build_graphics_audio:
             self.config["UEFI"]["Quirks"]["ForgeUefiSupport"] = True
             self.config["UEFI"]["Quirks"]["ReloadOptionRoms"] = True
 
+        # AMD GOP VBIOS injection for AMD GCN 1-4 GPUs
+        if self.constants.gop_injection is True:
+            print("- Adding AMDGOP.efi")
+            shutil.copy(self.constants.amd_gop_driver_path, self.constants.drivers_path)
+            support.build_support(self.model, self.constants, self.config).get_efi_binary_by_path("AMDGOP.efi", "UEFI", "Drivers")["Enabled"] = True
+
     def spoof_handling(self):
         if self.constants.serial_settings == "None":
             return

resources/constants.py

@@ -177,6 +177,7 @@ class Constants:
         self.allow_ts2_accel = True  #       Set TeraScale 2 Acceleration support
         self.force_nv_web = False  #         Force Nvidia Web Drivers on Tesla and Kepler
         self.force_output_support = False  # Force Output support for Mac Pros with PC VBIOS
+        self.gop_injection = False  #        Set GOP Injection support
 
         ## Miscellaneous
         self.disallow_cpufriend = False  #     Disable CPUFriend
@@ -248,6 +249,10 @@ class Constants:
     def exfat_legacy_driver_path(self):
         return self.payload_path / Path("Drivers/ExFatDxeLegacy.efi")
 
+    @property
+    def amd_gop_driver_path(self):
+        return self.payload_path / Path("Drivers/AMDGOP.efi")
+
     @property
     def xhci_driver_path(self):
         return self.payload_path / Path("Drivers/XhciDxe.efi")