--- zzzz-none-000/linux-3.10.107/drivers/char/agp/sis-agp.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/char/agp/sis-agp.c	2021-02-04 17:41:59.000000000 +0000
@@ -50,13 +50,12 @@
 
 static int sis_configure(void)
 {
-	u32 temp;
 	struct aper_size_info_8 *current_size;
 
 	current_size = A_SIZE_8(agp_bridge->current_size);
 	pci_write_config_byte(agp_bridge->dev, SIS_TLBCNTRL, 0x05);
-	pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
-	agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
+						    AGP_APERTURE_BAR);
 	pci_write_config_dword(agp_bridge->dev, SIS_ATTBASE,
 			       agp_bridge->gatt_bus_addr);
 	pci_write_config_byte(agp_bridge->dev, SIS_APSIZE,