Index: sys/dev/agp/agp_i810.h
===================================================================
--- sys/dev/agp/agp_i810.h
+++ sys/dev/agp/agp_i810.h
@@ -87,6 +87,7 @@
 int intel_gtt_chipset_flush(void);
 void intel_gtt_unmap_memory(struct sglist *sg_list);
 void intel_gtt_clear_range(u_int first_entry, u_int num_entries);
+void intel_gtt_install_pte(u_int index, vm_paddr_t addr, u_int flags);
 int intel_gtt_map_memory(vm_page_t *pages, u_int num_entries,
     struct sglist **sg_list);
 void intel_gtt_insert_sg_entries(struct sglist *sg_list, u_int pg_start,
Index: sys/dev/agp/agp_i810.c
===================================================================
--- sys/dev/agp/agp_i810.c
+++ sys/dev/agp/agp_i810.c
@@ -2242,6 +2242,16 @@
 	return (0);
 }
 
+static void
+agp_intel_gtt_install_pte(device_t dev, u_int index, vm_paddr_t addr,
+    u_int flags)
+{
+	struct agp_i810_softc *sc;
+
+	sc = device_get_softc(dev);
+	sc->match->driver->install_gtt_pte(dev, index, addr, flags);
+}
+
 void
 agp_intel_gtt_insert_sg_entries(device_t dev, struct sglist *sg_list,
     u_int first_entry, u_int flags)
@@ -2320,6 +2330,13 @@
 	agp_intel_gtt_insert_sg_entries(intel_agp, sg_list, first_entry, flags);
 }
 
+void
+intel_gtt_install_pte(u_int index, vm_paddr_t addr, u_int flags)
+{
+
+	agp_intel_gtt_install_pte(intel_agp, index, addr, flags);
+}
+
 device_t
 intel_gtt_get_bridge_device(void)
 {