diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index cea9f99..4387e69 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -648,6 +648,7 @@
 
 static int intel_gtt_init(void)
 {
+	u32 gma_addr;
 	u32 gtt_map_size;
 	int ret;
 
@@ -694,6 +695,15 @@
 		return ret;
 	}
 
+	if (INTEL_GTT_GEN <= 2)
+		pci_read_config_dword(intel_private.pcidev, I810_GMADDR,
+				      &gma_addr);
+	else
+		pci_read_config_dword(intel_private.pcidev, I915_GMADDR,
+				      &gma_addr);
+
+	intel_private.base.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK);
+
 	return 0;
 }
 
@@ -769,18 +779,8 @@
 
 static bool intel_enable_gtt(void)
 {
-	u32 gma_addr;
 	u8 __iomem *reg;
 
-	if (INTEL_GTT_GEN <= 2)
-		pci_read_config_dword(intel_private.pcidev, I810_GMADDR,
-				      &gma_addr);
-	else
-		pci_read_config_dword(intel_private.pcidev, I915_GMADDR,
-				      &gma_addr);
-
-	intel_private.base.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK);
-
 	if (INTEL_GTT_GEN >= 6)
 	    return true;