diff --git a/sys/arch/pmax/include/autoconf.h b/sys/arch/pmax/include/autoconf.h
new file mode 100644
index 000000000000..4fdac1370d1f
--- /dev/null
+++ b/sys/arch/pmax/include/autoconf.h
@@ -0,0 +1,82 @@
+/*	$NetBSD: autoconf.h,v 1.1 1995/08/04 00:34:15 jonathan Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+/*
+ * Machine-dependent structures of autoconfiguration
+ */
+
+struct confargs;
+
+/* Handle device interrupt for  given unit of a driver */
+
+typedef int handler_arg_t;
+typedef int (*intr_handler_t) __P((handler_arg_t));
+
+struct abus {
+	struct	device *ab_dv;		/* back-pointer to device */
+	int	ab_type;		/* bus type (see below) */
+	void	(*ab_intr_establish)	/* bus's set-handler function */
+		    __P((struct confargs *, intr_handler_t, handler_arg_t));
+	void	(*ab_intr_disestablish)	/* bus's unset-handler function */
+		    __P((struct confargs *));
+	caddr_t	(*ab_cvtaddr)		/* convert slot/offset to address */
+		    __P((struct confargs *));
+	int	(*ab_matchname)		/* see if name matches driver */
+		    __P((struct confargs *, char *));
+};
+
+#define	BUS_MAIN	1		/* mainbus */
+#define	BUS_TC		2		/* TurboChannel */
+#define	BUS_ASIC	3		/* IOCTL ASIC; under TurboChannel */
+#define	BUS_TCDS	4		/* TCDS ASIC; under TurboChannel */
+
+#define KN02_ASIC_NAME "KN02    "	/* very special */
+	
+#define	BUS_INTR_ESTABLISH(ca, handler, val)				\
+	    (*(ca)->ca_bus->ab_intr_establish)((ca), (handler), (val))
+#define	BUS_INTR_DISESTABLISH(ca)					\
+	    (*(ca)->ca_bus->ab_intr_establish)(ca)
+#define	BUS_CVTADDR(ca)							\
+	    (*(ca)->ca_bus->ab_cvtaddr)(ca)
+#define	BUS_MATCHNAME(ca, name)						\
+	    (*(ca)->ca_bus->ab_matchname)((ca), (name))
+
+struct confargs {
+	char	*ca_name;		/* Device name. */
+	int	ca_slot;		/* Device slot (table entry). */
+	int	ca_slotpri;		/* Device interrupt "priority" */
+	int	ca_offset;		/* Offset into slot. */
+	struct	abus *ca_bus;		/* bus device resides on. */
+};
+
+#ifndef pmax
+void	set_clockintr __P((void (*)(struct clockframe *)));
+#endif
+void	set_iointr __P((void (*)(void *, int)));
+int	badaddr			__P((void *, u_int));