diff --git a/sys/arch/i386/eisa/eisa_machdep.c b/sys/arch/i386/eisa/eisa_machdep.c
index c03b504e7b75..1cce2032d57a 100644
--- a/sys/arch/i386/eisa/eisa_machdep.c
+++ b/sys/arch/i386/eisa/eisa_machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: eisa_machdep.c,v 1.4 1996/10/13 03:19:38 christos Exp $	*/
+/*	$NetBSD: eisa_machdep.c,v 1.5 1996/10/21 23:12:56 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
@@ -40,8 +40,10 @@
 #include <sys/systm.h>
 #include <sys/errno.h>
 #include <sys/device.h>
+#include <sys/extent.h>
 
 #include <i386/isa/icu.h>
+#include <dev/isa/isareg.h>
 #include <dev/isa/isavar.h>
 #include <dev/eisa/eisavar.h>
 
@@ -123,3 +125,31 @@ eisa_intr_disestablish(ec, cookie)
 
 	return isa_intr_disestablish(NULL, cookie);
 }
+
+int
+eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
+	bus_space_tag_t t;
+	bus_size_t size, align;
+	bus_addr_t boundary;
+	int cacheable;
+	bus_addr_t *addrp;
+	bus_space_handle_t *bahp;
+{
+	extern struct extent *iomem_ex;
+
+	/*
+	 * Allocate physical address space after the ISA hole.
+	 */
+	return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
+	    boundary, cacheable, addrp, bahp);
+}
+
+void
+eisa_mem_free(t, bah, size)
+	bus_space_tag_t t;
+	bus_space_handle_t bah;
+	bus_size_t size;
+{
+
+	bus_space_free(t, bah, size);
+}
diff --git a/sys/arch/i386/eisa/eisa_machdep.h b/sys/arch/i386/eisa/eisa_machdep.h
index 9ed851c7ebbe..1ff655bb5198 100644
--- a/sys/arch/i386/eisa/eisa_machdep.h
+++ b/sys/arch/i386/eisa/eisa_machdep.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: eisa_machdep.h,v 1.2 1996/04/09 23:00:27 cgd Exp $	*/
+/*	$NetBSD: eisa_machdep.h,v 1.3 1996/10/21 23:12:58 thorpej Exp $	*/
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
@@ -60,3 +60,7 @@ const char	*eisa_intr_string __P((eisa_chipset_tag_t, eisa_intr_handle_t));
 void		*eisa_intr_establish __P((eisa_chipset_tag_t,
 		    eisa_intr_handle_t, int, int, int (*)(void *), void *));
 void		eisa_intr_disestablish __P((eisa_chipset_tag_t, void *));
+int		eisa_mem_alloc __P((bus_space_tag_t, bus_size_t, bus_size_t,
+		    bus_addr_t, int, bus_addr_t *, bus_space_handle_t *));
+void		eisa_mem_free __P((bus_space_tag_t, bus_space_handle_t,
+		    bus_size_t));