Includes for generic Mips

37 files changed, 3552 insertions, 0 deletions

diff --git a/sys/arch/mips/include/ansi.h b/sys/arch/mips/include/ansi.h
new file mode 100644
index 00000000000..da02a609685
--- /dev/null
+++ b/sys/arch/mips/include/ansi.h
@@ -0,0 +1,76 @@
+/*	$OpenBSD: ansi.h,v 1.1 1998/01/28 11:14:35 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)ansi.h	8.2 (Berkeley) 1/4/94
+ */
+
+#ifndef	_MIPS_ANSI_H_
+#define	_MIPS_ANSI_H_
+
+/*
+ * Types which are fundamental to the implementation and may appear in
+ * more than one standard header are defined here.  Standard headers
+ * then use:
+ *	#ifdef	_BSD_SIZE_T_
+ *	typedef	_BSD_SIZE_T_ size_t;
+ *	#undef	_BSD_SIZE_T_
+ *	#endif
+ */
+#define	_BSD_CLOCK_T_	unsigned long		/* clock() */
+#define	_BSD_PTRDIFF_T_	int			/* ptr1 - ptr2 */
+#define	_BSD_SIZE_T_	unsigned int		/* sizeof() */
+#define	_BSD_SSIZE_T_	int			/* byte count or error */
+#define	_BSD_TIME_T_	int			/* time() */
+#define	_BSD_VA_LIST_	char *			/* va_list */
+#define	_BSD_CLOCKID_T_	int
+#define	_BSD_TIMER_T_	int
+
+/*
+ * Runes (wchar_t) is declared to be an ``int'' instead of the more natural
+ * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
+ * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+ * it looks like 10646 will be a 31 bit standard.  This means that if your
+ * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+ * chosen over a long is that the is*() and to*() routines take ints (says
+ * ANSI C), but they use _RUNE_T_ instead of int.  By changing it here, you
+ * lose a bit of ANSI conformance, but your programs will still work.
+ *    
+ * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type.  When wchar_t
+ * and rune_t are typedef'd, _WCHAR_T_ will be undef'd, but _RUNE_T remains
+ * defined for ctype.h.
+ */
+#define	_BSD_WCHAR_T_	int			/* wchar_t */
+#define	_BSD_RUNE_T_	int			/* rune_t */
+
+#endif	/* _MIPS_ANSI_H_ */
diff --git a/sys/arch/mips/include/archtype.h b/sys/arch/mips/include/archtype.h
new file mode 100644
index 00000000000..5ae11975ff8
--- /dev/null
+++ b/sys/arch/mips/include/archtype.h
@@ -0,0 +1,51 @@
+/*	$OpenBSD: archtype.h,v 1.1 1998/01/28 11:14:36 pefo Exp $	*/
+/*
+ * Copyright (c) 1997 Per Fogelstrom
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed under OpenBSD by
+ *	Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifndef _MACHINE_ARCHTYPE_H_
+#define _MACHINE_ARCHTYPE_H_
+/*
+ * Define architectural identitys for the different Mips machines.
+ */
+#define	ACER_PICA_61		0x1	/* Acer Labs Pica 61 */
+#define	MAGNUM			0x2	/* Mips MAGNUM R4000 */
+#define	DESKSTATION_RPC44	0x3	/* Deskstation xxx */
+#define	DESKSTATION_TYNE	0x4	/* Deskstation xxx */
+#define	NKK_AQUARIUS		0x5	/* NKK R4{67}00 PC */
+#define	ALGOR_P4032		0x6	/* ALGORITHMICS P-4032 VR4300 */
+#define	SNI_RM200		0x7	/* Siemens Nixdorf RM200 */
+
+#define	SGI_INDY		0x10	/* Silicon Graphics Indy */
+
+extern int system_type;		/* Global system type indicator */
+
+#endif /* _MACHINE_ARCHTYPE_H_ */
diff --git a/sys/arch/mips/include/asm.h b/sys/arch/mips/include/asm.h
new file mode 100644
index 00000000000..d34fdb32dce
--- /dev/null
+++ b/sys/arch/mips/include/asm.h
@@ -0,0 +1,206 @@
+/*      $OpenBSD: asm.h,v 1.1 1998/01/28 11:14:37 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	Copyright (C) 1989 Digital Equipment Corporation.
+ *	Permission to use, copy, modify, and distribute this software and
+ *	its documentation for any purpose and without fee is hereby granted,
+ *	provided that the above copyright notice appears in all copies.
+ *	Digital Equipment Corporation makes no representations about the
+ *	suitability of this software for any purpose.  It is provided "as is"
+ *	without express or implied warranty.
+ */
+
+#ifndef _MIPS_ASM_H
+#define _MIPS_ASM_H
+
+#include <machine/regdef.h>
+
+#ifndef ABICALLS
+#define	ABICALLS	.abicalls
+#endif
+
+#if defined(ABICALLS) && !defined(_KERNEL)
+	ABICALLS
+#endif
+
+#define RCSID(x)
+
+#define _C_LABEL(x) x
+
+/*
+ * Define how to access unaligned data word 
+ */
+#ifdef MIPSEL
+#define LWLO    lwl
+#define LWHI    lwr
+#define	SWLO	swl
+#define	SWHI	swr
+#endif
+#ifdef MIPSEB
+#define LWLO    lwr
+#define LWHI    lwl
+#define	SWLO	swr
+#define	SWHI	swl
+#endif
+
+/*
+ * Code for setting gp reg if abicalls are used.
+ */
+#if defined(ABICALLS) && !defined(_KERNEL)
+#define	ABISETUP		\
+	.set	noreorder;	\
+	.cpload	t9;		\
+	.set	reorder;
+#else
+#define	ABISETUP
+#endif
+
+/*
+ * Define -pg profile entry code.
+ */
+#if defined(GPROF) || defined(PROF)
+#define	MCOUNT			\
+	subu 	sp, sp, 32;	\
+	.cprestore 16;		\
+	sw	ra, 28(sp);	\
+	sw	gp, 24(sp);	\
+	.set	noat;		\
+	.set	noreorder;	\
+	move	AT, ra;		\
+	jal	_mcount;	\
+	subu	sp, sp, 8;	\
+	lw	ra, 28(sp);	\
+	addu	sp, sp, 32;	\
+	.set reorder;		\
+	.set	at;
+#else
+#define	MCOUNT
+#endif
+
+/*
+ * LEAF(x)
+ *
+ *	Declare a leaf routine.
+ */
+#define LEAF(x)			\
+	.align	3;		\
+	.globl x;		\
+	.ent x, 0;		\
+x: ;				\
+	.frame sp, 0, ra;	\
+	ABISETUP		\
+	MCOUNT
+
+#define	ALEAF(x)		\
+	.globl	x;		\
+x:
+
+/*
+ * NLEAF(x)
+ *
+ *	Declare a non-profiled leaf routine.
+ */
+#define NLEAF(x)		\
+	.align	3;		\
+	.globl x;		\
+	.ent x, 0;		\
+x: ;				\
+	.frame sp, 0, ra;	\
+	ABISETUP
+
+/*
+ * NON_LEAF(x)
+ *
+ *	Declare a non-leaf routine (a routine that makes other C calls).
+ */
+#define NON_LEAF(x, fsize, retpc) \
+	.align	3;		\
+	.globl x;		\
+	.ent x, 0;		\
+x: ;				\
+	.frame sp, fsize, retpc; \
+	ABISETUP		\
+	MCOUNT
+
+/*
+ * NNON_LEAF(x)
+ *
+ *	Declare a non-profiled non-leaf routine
+ *	(a routine that makes other C calls).
+ */
+#define NNON_LEAF(x, fsize, retpc) \
+	.align	3;		\
+	.globl x;		\
+	.ent x, 0;		\
+x: ;				\
+	.frame sp, fsize, retpc	\
+	ABISETUP
+
+/*
+ * END(x)
+ *
+ *	Mark end of a procedure.
+ */
+#define END(x) \
+	.end x
+
+#define STAND_FRAME_SIZE	24
+#define STAND_RA_OFFSET		20
+
+/*
+ * Macros to panic and printf from assembly language.
+ */
+#define PANIC(msg) \
+	la	a0, 9f; \
+	jal	panic; \
+	MSG(msg)
+
+#define	PRINTF(msg) \
+	la	a0, 9f; \
+	jal	printf; \
+	MSG(msg)
+
+#define	MSG(msg) \
+	.rdata; \
+9:	.asciiz	msg; \
+	.text
+
+#define ASMSTR(str) \
+	.asciiz str; \
+	.align	3
+
+#endif /* _MIPS_ASM_H */
diff --git a/sys/arch/mips/include/cdefs.h b/sys/arch/mips/include/cdefs.h
new file mode 100644
index 00000000000..13bd1eaacb2
--- /dev/null
+++ b/sys/arch/mips/include/cdefs.h
@@ -0,0 +1,39 @@
+/*	$OpenBSD: cdefs.h,v 1.1 1998/01/28 11:14:37 pefo Exp $	*/
+/*	$NetBSD: cdefs.h,v 1.3 1995/05/03 06:04:54 mellon Exp $	*/
+
+/*
+ * Copyright (c) 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.
+ */
+
+#ifndef _MACHINE_CDEFS_H_
+#define	_MACHINE_CDEFS_H_
+
+#define	_C_LABEL(x)	_STRING(x)
+
+#define	__indr_references(sym,msg)	/* nothing */
+#define	__warn_references(sym,msg)	/* nothing */
+
+#endif /* !_MACHINE_CDEFS_H_ */
diff --git a/sys/arch/mips/include/cpu.h b/sys/arch/mips/include/cpu.h
new file mode 100644
index 00000000000..7429f92c1f1
--- /dev/null
+++ b/sys/arch/mips/include/cpu.h
@@ -0,0 +1,447 @@
+/*	$OpenBSD: cpu.h,v 1.1 1998/01/28 11:14:38 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell and Rick Macklem.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	Copyright (C) 1989 Digital Equipment Corporation.
+ *	Permission to use, copy, modify, and distribute this software and
+ *	its documentation for any purpose and without fee is hereby granted,
+ *	provided that the above copyright notice appears in all copies.
+ *	Digital Equipment Corporation makes no representations about the
+ *	suitability of this software for any purpose.  It is provided "as is"
+ *	without express or implied warranty.
+ *
+ *	from: @(#)cpu.h	8.4 (Berkeley) 1/4/94
+ */
+
+#ifndef _CPU_H_
+#define _CPU_H_
+
+#include <machine/psl.h>
+
+#define KUSEG_ADDR		0x0
+#define CACHED_MEMORY_ADDR	0x80000000
+#define UNCACHED_MEMORY_ADDR	0xa0000000
+#define KSEG2_ADDR		0xc0000000
+#define MAX_MEM_ADDR		0xbe000000
+#define	RESERVED_ADDR		0xbfc80000
+
+#define	CACHED_TO_PHYS(x)	((unsigned)(x) & 0x1fffffff)
+#define	PHYS_TO_CACHED(x)	((unsigned)(x) | CACHED_MEMORY_ADDR)
+#define	UNCACHED_TO_PHYS(x) 	((unsigned)(x) & 0x1fffffff)
+#define	PHYS_TO_UNCACHED(x) 	((unsigned)(x) | UNCACHED_MEMORY_ADDR)
+#define VA_TO_CINDEX(x) 	((unsigned)(x) & 0xffffff | CACHED_MEMORY_ADDR)
+#define	CACHED_TO_UNCACHED(x)	(PHYS_TO_UNCACHED(CACHED_TO_PHYS(x)))
+
+#ifdef _KERNEL
+/*
+ * The bits in the cause register.
+ *
+ *	CR_BR_DELAY	Exception happened in branch delay slot.
+ *	CR_COP_ERR		Coprocessor error.
+ *	CR_IP		Interrupt pending bits defined below.
+ *	CR_EXC_CODE	The exception type (see exception codes below).
+ */
+#define CR_BR_DELAY		0x80000000
+#define CR_COP_ERR		0x30000000
+#define CR_EXC_CODE		0x0000007c
+#define CR_IP			0x0000FF00
+#define CR_EXC_CODE_SHIFT	2
+
+/*
+ * The bits in the status register.  All bits are active when set to 1.
+ */
+#define SR_COP_USABILITY	0xf0000000
+#define SR_COP_0_BIT		0x10000000
+#define SR_COP_1_BIT		0x20000000
+#define SR_RP			0x08000000
+#define SR_FR_32		0x04000000
+#define SR_RE			0x02000000
+#define SR_BOOT_EXC_VEC		0x00400000
+#define SR_TLB_SHUTDOWN		0x00200000
+#define SR_SOFT_RESET		0x00100000
+#define SR_DIAG_CH		0x00040000
+#define SR_DIAG_CE		0x00020000
+#define SR_DIAG_PE		0x00010000
+#define SR_KX			0x00000080
+#define SR_SX			0x00000040
+#define SR_UX			0x00000020
+#define SR_KSU_MASK		0x00000018
+#define SR_KSU_USER		0x00000010
+#define SR_KSU_SUPER		0x00000008
+#define SR_KSU_KERNEL		0x00000000
+#define SR_ERL			0x00000004
+#define SR_EXL			0x00000002
+#define SR_INT_ENAB		0x00000001
+/*#define SR_INT_MASK		0x0000ff00*/
+
+/*
+ * The interrupt masks.
+ * If a bit in the mask is 1 then the interrupt is enabled (or pending).
+ */
+#define INT_MASK		0xff00
+#define INT_MASK_5		0x8000
+#define INT_MASK_4		0x4000
+#define INT_MASK_3		0x2000
+#define INT_MASK_2		0x1000
+#define INT_MASK_1		0x0800
+#define INT_MASK_0		0x0400
+#define HARD_INT_MASK		0xfc00
+#define SOFT_INT_MASK_1		0x0200
+#define SOFT_INT_MASK_0		0x0100
+
+/*
+ * The bits in the context register.
+ */
+#define CNTXT_PTE_BASE		0xff800000
+#define CNTXT_BAD_VPN2		0x007ffff0
+
+/*
+ * Location of exception vectors.
+ */
+#define RESET_EXC_VEC		0xbfc00000
+#define TLB_MISS_EXC_VEC	0x80000000
+#define XTLB_MISS_EXC_VEC	0x80000080
+#define CACHE_ERR_EXC_VEC	0x80000100
+#define GEN_EXC_VEC		0x80000180
+
+/*
+ * Coprocessor 0 registers:
+ */
+#define COP_0_TLB_INDEX		$0
+#define COP_0_TLB_RANDOM	$1
+#define COP_0_TLB_LO0		$2
+#define COP_0_TLB_LO1		$3
+#define COP_0_TLB_CONTEXT	$4
+#define COP_0_TLB_PG_MASK	$5
+#define COP_0_TLB_WIRED		$6
+#define COP_0_BAD_VADDR		$8
+#define COP_0_COUNT		$9
+#define COP_0_TLB_HI		$10
+#define COP_0_COMPARE		$11
+#define COP_0_STATUS_REG	$12
+#define COP_0_CAUSE_REG		$13
+#define COP_0_EXC_PC		$14
+#define COP_0_PRID		$15
+#define COP_0_CONFIG		$16
+#define COP_0_LLADDR		$17
+#define COP_0_WATCH_LO		$18
+#define COP_0_WATCH_HI		$19
+#define COP_0_TLB_XCONTEXT	$20
+#define COP_0_ECC		$26
+#define COP_0_CACHE_ERR		$27
+#define COP_0_TAG_LO		$28
+#define COP_0_TAG_HI		$29
+#define COP_0_ERROR_PC		$30
+
+/*
+ * Values for the code field in a break instruction.
+ */
+#define BREAK_INSTR		0x0000000d
+#define BREAK_VAL_MASK		0x03ff0000
+#define BREAK_VAL_SHIFT		16
+#define BREAK_KDB_VAL		512
+#define BREAK_SSTEP_VAL		513
+#define BREAK_BRKPT_VAL		514
+#define BREAK_SOVER_VAL		515
+#define BREAK_KDB	(BREAK_INSTR | (BREAK_KDB_VAL << BREAK_VAL_SHIFT))
+#define BREAK_SSTEP	(BREAK_INSTR | (BREAK_SSTEP_VAL << BREAK_VAL_SHIFT))
+#define BREAK_BRKPT	(BREAK_INSTR | (BREAK_BRKPT_VAL << BREAK_VAL_SHIFT))
+#define BREAK_SOVER	(BREAK_INSTR | (BREAK_SOVER_VAL << BREAK_VAL_SHIFT))
+
+/*
+ * Mininum and maximum cache sizes.
+ */
+#define MIN_CACHE_SIZE		(16 * 1024)
+#define MAX_CACHE_SIZE		(256 * 1024)
+
+/*
+ * The floating point version and status registers.
+ */
+#define	FPC_ID			$0
+#define	FPC_CSR			$31
+
+/*
+ * The floating point coprocessor status register bits.
+ */
+#define FPC_ROUNDING_BITS		0x00000003
+#define FPC_ROUND_RN			0x00000000
+#define FPC_ROUND_RZ			0x00000001
+#define FPC_ROUND_RP			0x00000002
+#define FPC_ROUND_RM			0x00000003
+#define FPC_STICKY_BITS			0x0000007c
+#define FPC_STICKY_INEXACT		0x00000004
+#define FPC_STICKY_UNDERFLOW		0x00000008
+#define FPC_STICKY_OVERFLOW		0x00000010
+#define FPC_STICKY_DIV0			0x00000020
+#define FPC_STICKY_INVALID		0x00000040
+#define FPC_ENABLE_BITS			0x00000f80
+#define FPC_ENABLE_INEXACT		0x00000080
+#define FPC_ENABLE_UNDERFLOW		0x00000100
+#define FPC_ENABLE_OVERFLOW		0x00000200
+#define FPC_ENABLE_DIV0			0x00000400
+#define FPC_ENABLE_INVALID		0x00000800
+#define FPC_EXCEPTION_BITS		0x0003f000
+#define FPC_EXCEPTION_INEXACT		0x00001000
+#define FPC_EXCEPTION_UNDERFLOW		0x00002000
+#define FPC_EXCEPTION_OVERFLOW		0x00004000
+#define FPC_EXCEPTION_DIV0		0x00008000
+#define FPC_EXCEPTION_INVALID		0x00010000
+#define FPC_EXCEPTION_UNIMPL		0x00020000
+#define FPC_COND_BIT			0x00800000
+#define FPC_FLUSH_BIT			0x01000000
+#define FPC_MBZ_BITS			0xfe7c0000
+
+/*
+ * Constants to determine if have a floating point instruction.
+ */
+#define OPCODE_SHIFT		26
+#define OPCODE_C1		0x11
+
+/*
+ * The low part of the TLB entry.
+ */
+#define VMTLB_PF_NUM		0x3fffffc0
+#define VMTLB_ATTR_MASK		0x00000038
+#define VMTLB_MOD_BIT		0x00000004
+#define VMTLB_VALID_BIT		0x00000002
+#define VMTLB_GLOBAL_BIT	0x00000001
+
+#define VMTLB_PHYS_PAGE_SHIFT	6
+
+/*
+ * The high part of the TLB entry.
+ */
+#define VMTLB_VIRT_PAGE_NUM	0xffffe000
+#define VMTLB_PID		0x000000ff
+#define VMTLB_PID_SHIFT		0
+#define VMTLB_VIRT_PAGE_SHIFT	12
+
+/*
+ * The number of TLB entries and the first one that write random hits.
+ */
+/*#define VMNUM_TLB_ENTRIES	48	XXX We never use this... */
+#define VMWIRED_ENTRIES	 	8
+
+/*
+ * The number of process id entries.
+ */
+#define	VMNUM_PIDS		256
+
+/*
+ * TLB probe return codes.
+ */
+#define VMTLB_NOT_FOUND		0
+#define VMTLB_FOUND		1
+#define VMTLB_FOUND_WITH_PATCH	2
+#define VMTLB_PROBE_ERROR	3
+
+/*
+ * Exported definitions unique to mips cpu support.
+ */
+
+/*
+ * definitions of cpu-dependent requirements
+ * referenced in generic code
+ */
+#define	COPY_SIGCODE		/* copy sigcode above user stack in exec */
+
+#define	cpu_wait(p)		/* nothing */
+#define cpu_set_init_frame(p, fp) /* nothing */
+#define cpu_swapout(p)		panic("cpu_swapout: can't get here");
+
+#ifndef _LOCORE
+/*
+ * Arguments to hardclock and gatherstats encapsulate the previous
+ * machine state in an opaque clockframe.
+ */
+struct clockframe {
+	int	pc;	/* program counter at time of interrupt */
+	int	sr;	/* status register at time of interrupt */
+	int	cr;	/* cause register at time of interrupt */
+};
+
+#define	CLKF_USERMODE(framep)	((framep)->sr & SR_KSU_USER)
+#define	CLKF_BASEPRI(framep)	((~(framep)->sr & (INT_MASK|SR_INT_ENAB)) == 0)
+#define	CLKF_PC(framep)		((framep)->pc)
+#define	CLKF_INTR(framep)	(0)
+
+/*
+ * Preempt the current process if in interrupt from user mode,
+ * or after the current trap/syscall if in system mode.
+ */
+#define	need_resched()	{ want_resched = 1; aston(); }
+
+/*
+ * Give a profiling tick to the current process when the user profiling
+ * buffer pages are invalid.  On the PICA, request an ast to send us
+ * through trap, marking the proc as needing a profiling tick.
+ */
+#define	need_proftick(p)	{ (p)->p_flag |= P_OWEUPC; aston(); }
+
+/*
+ * Notify the current process (p) that it has a signal pending,
+ * process as soon as possible.
+ */
+#define	signotify(p)	aston()
+
+#define aston()		(astpending = 1)
+
+int	astpending;	/* need to trap before returning to user mode */
+int	want_resched;	/* resched() was called */
+
+/*
+ * CPU identification, from PRID register.
+ */
+union cpuprid {
+	int	cpuprid;
+	struct {
+#if BYTE_ORDER == BIG_ENDIAN
+		u_int	pad1:16;	/* reserved */
+		u_int	cp_imp:8;	/* implementation identifier */
+		u_int	cp_majrev:4;	/* major revision identifier */
+		u_int	cp_minrev:4;	/* minor revision identifier */
+#else
+		u_int	cp_minrev:4;	/* minor revision identifier */
+		u_int	cp_majrev:4;	/* major revision identifier */
+		u_int	cp_imp:8;	/* implementation identifier */
+		u_int	pad1:16;	/* reserved */
+#endif
+	} cpu;
+};
+
+/*
+ * CTL_MACHDEP definitions.
+ */
+#define	CPU_CONSDEV		1	/* dev_t: console terminal device */
+#define	CPU_MAXID		2	/* number of valid machdep ids */
+
+#define CTL_MACHDEP_NAMES { \
+	{ 0, 0 }, \
+	{ "console_device", CTLTYPE_STRUCT }, \
+}
+
+#endif /* !_LOCORE */
+#endif /* _KERNEL */
+
+/*
+ * MIPS CPU types (cp_imp).
+ */
+#define	MIPS_R2000	0x01	/* MIPS R2000 CPU		ISA I   */
+#define	MIPS_R3000	0x02	/* MIPS R3000 CPU		ISA I   */
+#define	MIPS_R6000	0x03	/* MIPS R6000 CPU		ISA II	*/
+#define	MIPS_R4000	0x04	/* MIPS R4000/4400 CPU		ISA III	*/
+#define MIPS_R3LSI	0x05	/* LSI Logic R3000 derivate	ISA I	*/
+#define	MIPS_R6000A	0x06	/* MIPS R6000A CPU		ISA II	*/
+#define	MIPS_R3IDT	0x07	/* IDT R3000 derivate		ISA I	*/
+#define	MIPS_R10000	0x09	/* MIPS R10000/T5 CPU		ISA IV  */
+#define	MIPS_R4200	0x0a	/* MIPS R4200 CPU (ICE)		ISA III */
+#define MIPS_R4300	0x0b	/* NEC VR4300 CPU		ISA III */
+#define MIPS_UNKC2	0x0c	/* unnanounced product cpu	ISA III */
+#define	MIPS_R8000	0x10	/* MIPS R8000 Blackbird/TFP	ISA IV  */
+#define	MIPS_R4600	0x20	/* QED R4600 Orion		ISA III */
+#define	MIPS_R4700	0x21	/* QED R4700 Orion		ISA III */
+#define	MIPS_R3TOSH	0x22	/* Toshiba R3000 based CPU	ISA I	*/
+#define	MIPS_R5000	0x23	/* MIPS R5000 based CPU		ISA IV  */
+#define	MIPS_RM5230	0x28	/* QED RM5230 based CPU		ISA IV  */
+
+/*
+ * MIPS FPU types
+ */
+#define	MIPS_SOFT	0x00	/* Software emulation		ISA I   */
+#define	MIPS_R2360	0x01	/* MIPS R2360 FPC		ISA I   */
+#define	MIPS_R2010	0x02	/* MIPS R2010 FPC		ISA I   */
+#define	MIPS_R3010	0x03	/* MIPS R3010 FPC		ISA I   */
+#define	MIPS_R6010	0x04	/* MIPS R6010 FPC		ISA II  */
+#define	MIPS_R4010	0x05	/* MIPS R4000/R4400 FPC		ISA II  */
+#define MIPS_R31LSI	0x06	/* LSI Logic derivate		ISA I	*/
+#define	MIPS_R10010	0x09	/* MIPS R10000/T5 FPU		ISA IV  */
+#define	MIPS_R4210	0x0a	/* MIPS R4200 FPC (ICE)		ISA III */
+#define MIPS_UNKF1	0x0b	/* unnanounced product cpu	ISA III */
+#define	MIPS_R8000	0x10	/* MIPS R8000 Blackbird/TFP	ISA IV  */
+#define	MIPS_R4600	0x20	/* QED R4600 Orion		ISA III */
+#define	MIPS_R3SONY	0x21	/* Sony R3000 based FPU		ISA I   */
+#define	MIPS_R3TOSH	0x22	/* Toshiba R3000 based FPU	ISA I	*/
+#define	MIPS_R5010	0x23	/* MIPS R5000 based FPU		ISA IV  */
+#define	MIPS_RM5230	0x28	/* QED RM5230 based FPU		ISA IV  */
+
+#if defined(_KERNEL) && !defined(_LOCORE)
+union	cpuprid cpu_id;
+union	cpuprid fpu_id;
+u_int	CpuPrimaryDataCacheSize;
+u_int	CpuPrimaryInstCacheSize;
+u_int	CpuPrimaryDataCacheLSize;
+u_int	CpuPrimaryInstCacheLSize;
+u_int	CpuCacheAliasMask;
+u_int	CpuTwoWayCache;
+int	l2cache_is_snooping;
+extern	struct intr_tab intr_tab[];
+
+struct tlb;
+struct user;
+
+int	R4K_ConfigCache __P((void));
+void	R4K_SetWIRED __P((int));
+void	R4K_SetPID __P((int));
+u_int	R4K_GetCOUNT __P((void));
+void	R4K_SetCOMPARE __P((u_int));
+void	R4K_FlushCache __P((void));
+void	R4K_FlushDCache __P((vm_offset_t, int));
+void	R4K_HitFlushDCache __P((vm_offset_t, int));
+void	R4K_FlushICache __P((vm_offset_t, int));
+void	R4K_TLBFlush __P((int));
+void	R4K_TLBFlushAddr __P((vm_offset_t));
+void	R4K_TLBWriteIndexed __P((int, struct tlb *));
+void	R4K_TLBUpdate __P((vm_offset_t, unsigned));
+void	R4K_TLBRead __P((int, struct tlb *));
+void	wbflush __P((void));
+void	savectx __P((struct user *, int));
+int	copykstack __P((struct user *));
+void	switch_exit __P((void));
+void	MipsSaveCurFPState __P((struct proc *));
+#ifdef DEBUG
+void	mdbpanic __P((void));
+#endif
+
+extern u_int32_t cpu_counter_interval;  /* Number of counter ticks/tick */
+extern u_int32_t cpu_counter_last;      /* Last compare value loaded    */
+
+/*
+ * Enable realtime clock (always enabled).
+ */
+#define	enablertclock()
+#endif /* _KERNEL */
+
+#endif /* _CPU_H_ */
diff --git a/sys/arch/mips/include/disklabel.h b/sys/arch/mips/include/disklabel.h
new file mode 100644
index 00000000000..7de65cec7eb
--- /dev/null
+++ b/sys/arch/mips/include/disklabel.h
@@ -0,0 +1,85 @@
+/*	$OpenBSD: disklabel.h,v 1.1 1998/01/28 11:14:39 pefo Exp $	*/
+/*	$NetBSD: disklabel.h,v 1.3 1996/03/09 20:52:54 ghudson Exp $	*/
+
+/*
+ * Copyright (c) 1994 Christopher G. Demetriou
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Christopher G. Demetriou.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _MACHINE_DISKLABEL_H_
+#define _MACHINE_DISKLABEL_H_
+
+#define	LABELSECTOR	1		/* sector containing label */
+#define	LABELOFFSET	0		/* offset of label in sector */
+#define	MAXPARTITIONS	16		/* number of partitions */
+#define	RAW_PART	2		/* raw partition: ie. rsd0c */
+
+/* DOS partition table -- located in boot block */
+#define	DOSBBSECTOR	0		/* DOS boot block relative sector # */
+#define	DOSPARTOFF	446
+#define	NDOSPART	4
+
+struct dos_partition {
+	u_int8_t	dp_flag;	/* bootstrap flags */
+	u_int8_t	dp_shd;		/* starting head */
+	u_int8_t	dp_ssect;	/* starting sector */
+	u_int8_t	dp_scyl;	/* starting cylinder */
+	u_int8_t	dp_typ;		/* partition type (see below) */
+	u_int8_t	dp_ehd;		/* end head */
+	u_int8_t	dp_esect;	/* end sector */
+	u_int8_t	dp_ecyl;	/* end cylinder */
+	u_int32_t	dp_start;	/* absolute starting sector number */
+	u_int32_t	dp_size;	/* partition size in sectors */
+};
+
+/* Known DOS partition types. */
+#define	DOSPTYP_UNUSED	0x00		/* Unused partition */
+#define DOSPTYP_FAT12	0x01		/* 12-bit FAT */
+#define DOSPTYP_FAT16S	0x04		/* 16-bit FAT, less than 32M */
+#define DOSPTYP_EXTEND	0x05		/* Extended; contains sub-partitions */
+#define DOSPTYP_FAT16B	0x06		/* 16-bit FAT, more than 32M */
+#define DOSPTYP_FAT16C	0x0e		/* 16-bit FAT, CHS-mapped */
+#define DOSPTYP_ONTRACK	0x54
+#define	DOSPTYP_LINUX	0x83		/* That other thing */
+#define DOSPTYP_386BSD	0xa5		/* 386BSD partition type */
+#define DOSPTYP_NETBSD	DOSPTYP_386BSD	/* NetBSD partition type (XXX) */
+#define DOSPTYP_OPENBSD	0xa6		/* OpenBSD partition type */
+
+#include <sys/dkbad.h>
+struct cpu_disklabel {
+	struct dos_partition dosparts[NDOSPART];
+	struct dkbad bad;
+};
+
+#define DKBAD(x) ((x)->bad)
+
+/* Isolate the relevant bits to get sector and cylinder. */
+#define	DPSECT(s)	((s) & 0x3f)
+#define	DPCYL(c, s)	((c) + (((s) & 0xc0) << 2))
+
+#endif /* _MACHINE_DISKLABEL_H_ */
diff --git a/sys/arch/mips/include/dlfcn.h b/sys/arch/mips/include/dlfcn.h
new file mode 100644
index 00000000000..20ca62e0f47
--- /dev/null
+++ b/sys/arch/mips/include/dlfcn.h
@@ -0,0 +1,42 @@
+/*	$OpenBSD: dlfcn.h,v 1.1 1998/01/28 11:14:39 pefo Exp $ */
+
+/*
+ * Copyright (c) 1996 Per Fogelstrom
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed under OpenBSD by
+ *	Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifndef _DLFCN_H
+#define _DLFCN_H 1
+ 
+/*
+ *	This is a dummy file. Empty until libdl has been done.
+ */
+
+#endif /* _DLFCN_H */
diff --git a/sys/arch/mips/include/ecoff.h b/sys/arch/mips/include/ecoff.h
new file mode 100644
index 00000000000..171cb02d84a
--- /dev/null
+++ b/sys/arch/mips/include/ecoff.h
@@ -0,0 +1,94 @@
+/*	$OpenBSD: ecoff.h,v 1.1 1998/01/28 11:14:40 pefo Exp $	*/
+/*	$NetBSD: ecoff.h,v 1.4 1995/06/16 02:07:33 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1994 Adam Glass
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Adam Glass.
+ * 4. The name of the Author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL Adam Glass BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#define ECOFF_LDPGSZ 4096
+
+#define ECOFF_PAD
+
+#define ECOFF_MACHDEP \
+        u_long ea_gprmask; \
+        u_long ea_cprmask[4]; \
+        u_long ea_gp_value
+
+#define ECOFF_MAGIC_MIPSEL 0x0162
+#define ECOFF_BADMAG(ex) ((ex)->f.f_magic != ECOFF_MAGIC_MIPSEL)
+
+#define ECOFF_SEGMENT_ALIGNMENT(ep) ((ep)->a.vstamp < 23 ? 8 : 16)
+
+struct ecoff_symhdr {
+        int16_t         sh_magic;
+        int16_t         sh_vstamp;
+        int32_t         sh_linemax;
+        int32_t         sh_densenummax;
+        int32_t         sh_procmax;
+        int32_t         sh_lsymmax;
+        int32_t         sh_optsymmax;
+        int32_t         sh_auxxymmax;
+        int32_t         sh_lstrmax;
+        int32_t         sh_estrmax;
+        int32_t         sh_fdmax;
+        int32_t         sh_rfdmax;
+        int32_t         sh_esymmax;
+        long            sh_linesize;
+        long            sh_lineoff;
+        long            sh_densenumoff;
+        long            sh_procoff; 
+        long            sh_lsymoff;
+        long            sh_optsymoff;
+        long            sh_auxsymoff;
+        long            sh_lstroff;
+        long            sh_estroff;
+        long            sh_fdoff;
+        long            sh_rfdoff;
+        long            sh_esymoff;
+};
+/* Some day they will make up their minds.... */
+#define	esymMax		sh_esymmax
+#define cbExtOffset	sh_esymoff
+#define	cbSsExtOffset	sh_estroff
+
+struct ecoff_extsym {  
+        long            es_value;
+        int             es_strindex;
+        unsigned        es_type:6;
+        unsigned        es_class:5;
+        unsigned        :1;
+        unsigned        es_symauxindex:20;  
+        unsigned        es_jmptbl:1;
+        unsigned        es_cmain:1;
+        unsigned        es_weakext:1;
+        unsigned        :29;
+        int             es_indexfld; 
+};
+
diff --git a/sys/arch/mips/include/elf_abi.h b/sys/arch/mips/include/elf_abi.h
new file mode 100644
index 00000000000..18b1ff7cbef
--- /dev/null
+++ b/sys/arch/mips/include/elf_abi.h
@@ -0,0 +1,63 @@
+/*	$OpenBSD: elf_abi.h,v 1.1 1998/01/28 11:14:41 pefo Exp $ */
+
+/*
+ * Copyright (c) 1996 Per Fogelstrom
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed under OpenBSD by
+ *	Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifndef _MACHINE_ELF_ABI_H
+#define _MACHINE_ELF_ABI_H
+
+/* From MIPS ABI supplemental */
+
+/* Architecture dependent Segment types - p_type */ 
+#define PT_MIPS_REGINFO 0x70000000      /* Register usage information */
+
+/* Architecture dependent d_tag field for Elf32_Dyn.  */
+#define DT_MIPS_RLD_VERSION  0x70000001 /* Runtime Linker Interface ID */
+#define DT_MIPS_TIME_STAMP   0x70000002 /* Timestamp */
+#define DT_MIPS_ICHECKSUM    0x70000003 /* Cksum of ext. str. and com. sizes */
+#define DT_MIPS_IVERSION     0x70000004 /* Version string (string tbl index) */
+#define DT_MIPS_FLAGS        0x70000005 /* Flags */
+#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Segment base address */
+#define DT_MIPS_CONFLICT     0x70000008 /* Adr of .conflict section */
+#define DT_MIPS_LIBLIST      0x70000009 /* Address of .liblist section */
+#define DT_MIPS_LOCAL_GOTNO  0x7000000a /* Number of local .GOT entries */
+#define DT_MIPS_CONFLICTNO   0x7000000b /* Number of .conflict entries */
+#define DT_MIPS_LIBLISTNO    0x70000010 /* Number of .liblist entries */
+#define DT_MIPS_SYMTABNO     0x70000011 /* Number of .dynsym entries */
+#define DT_MIPS_UNREFEXTNO   0x70000012 /* First external DYNSYM */
+#define DT_MIPS_GOTSYM       0x70000013 /* First GOT entry in .dynsym */
+#define DT_MIPS_HIPAGENO     0x70000014 /* Number of GOT page table entries */
+#define DT_MIPS_RLD_MAP      0x70000016 /* Address of debug map pointer */
+
+#define DT_PROCNUM (DT_MIPS_HIPAGENO - DT_LOPROC + 1)
+
+#endif /* _MACHINE_ELF_ABI_H */
diff --git a/sys/arch/mips/include/float.h b/sys/arch/mips/include/float.h
new file mode 100644
index 00000000000..4061d813705
--- /dev/null
+++ b/sys/arch/mips/include/float.h
@@ -0,0 +1,80 @@
+/*	$OpenBSD: float.h,v 1.1 1998/01/28 11:14:41 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)float.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _MACHINE_FLOAT_H_
+#define _MACHINE_FLOAT_H_
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int __flt_rounds __P((void));
+__END_DECLS
+
+#define FLT_RADIX	2		/* b */
+#define FLT_ROUNDS	__flt_rounds()
+
+#define FLT_MANT_DIG	24		/* p */
+#define FLT_EPSILON	1.19209290E-07F	/* b**(1-p) */
+#define FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
+#define FLT_MIN_EXP	-125		/* emin */
+#define FLT_MIN		1.17549435E-38F	/* b**(emin-1) */
+#define FLT_MIN_10_EXP	-37		/* ceil(log10(b**(emin-1))) */
+#define FLT_MAX_EXP	128		/* emax */
+#define FLT_MAX		3.40282347E+38F	/* (1-b**(-p))*b**emax */
+#define FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */
+
+#define DBL_MANT_DIG	53
+#define DBL_EPSILON	2.2204460492503131E-16
+#define DBL_DIG		15
+#define DBL_MIN_EXP	-1021
+#define DBL_MIN		2.225073858507201E-308
+#define DBL_MIN_10_EXP	-307
+#define DBL_MAX_EXP	1024
+#define DBL_MAX		1.797693134862316E+308
+#define DBL_MAX_10_EXP	308
+
+#define LDBL_MANT_DIG	DBL_MANT_DIG
+#define LDBL_EPSILON	DBL_EPSILON
+#define LDBL_DIG	DBL_DIG
+#define LDBL_MIN_EXP	DBL_MIN_EXP
+#define LDBL_MIN	DBL_MIN
+#define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
+#define LDBL_MAX_EXP	DBL_MAX_EXP
+#define LDBL_MAX	DBL_MAX
+#define LDBL_MAX_10_EXP	DBL_MAX_10_EXP
+
+#endif	/* _MACHINE_FLOAT_H_ */
diff --git a/sys/arch/mips/include/frame.h b/sys/arch/mips/include/frame.h
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/sys/arch/mips/include/frame.h
diff --git a/sys/arch/mips/include/ieeefp.h b/sys/arch/mips/include/ieeefp.h
new file mode 100644
index 00000000000..5324ab8b495
--- /dev/null
+++ b/sys/arch/mips/include/ieeefp.h
@@ -0,0 +1,25 @@
+/*	$OpenBSD: ieeefp.h,v 1.1 1998/01/28 11:14:43 pefo Exp $	*/
+
+/* 
+ * Written by J.T. Conklin, Apr 11, 1995
+ * Public domain.
+ */
+
+#ifndef _MACHINE_IEEEFP_H_
+#define _MACHINE_IEEEFP_H_
+
+typedef int fp_except;
+#define FP_X_IMP	0x01	/* imprecise (loss of precision) */
+#define FP_X_UFL	0x02	/* underflow exception */
+#define FP_X_OFL	0x04	/* overflow exception */
+#define FP_X_DZ		0x08	/* divide-by-zero exception */
+#define FP_X_INV	0x10	/* invalid operation exception */
+
+typedef enum {
+    FP_RN=0,			/* round to nearest representable number */
+    FP_RZ=1,			/* round to zero (truncate) */
+    FP_RP=2,			/* round toward positive infinity */
+    FP_RM=3			/* round toward negative infinity */
+} fp_rnd;
+
+#endif /* _MACHINE_IEEEFP_H_ */
diff --git a/sys/arch/mips/include/kbdreg.h b/sys/arch/mips/include/kbdreg.h
new file mode 100644
index 00000000000..87e456eaf31
--- /dev/null
+++ b/sys/arch/mips/include/kbdreg.h
@@ -0,0 +1,162 @@
+/*	$OpenBSD: kbdreg.h,v 1.1 1998/01/28 11:14:43 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1996 Per Fogelstrom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _KBDREG_H_
+#define	_KBDREG_H_
+
+/*
+ * Keyboard controller definitions
+ */
+
+#define	 KBS_DIB	0x01	/* data in buffer */
+#define	 KBS_IBF	0x02	/* input buffer low */
+#define	 KBS_WARM	0x04	/* input buffer low */
+#define	 KBS_OCMD	0x08	/* output buffer has command */
+#define	 KBS_NOSEC	0x10	/* security lock not engaged */
+#define	 KBS_TERR	0x20	/* transmission error */
+#define	 KBS_RERR	0x40	/* receive error */
+#define	 KBS_PERR	0x80	/* parity error */
+
+#define	K_RDCMDBYTE	0x20
+#define	K_LDCMDBYTE	0x60
+
+#define	KC8_TRANS	0x40	/* convert to old scan codes */
+#define	KC8_MDISABLE	0x20	/* disable mouse */
+#define	KC8_KDISABLE	0x10	/* disable keyboard */
+#define	KC8_IGNSEC	0x08	/* ignore security lock */
+#define	KC8_CPU		0x04	/* exit from protected mode reset */
+#define	KC8_MENABLE	0x02	/* enable mouse interrupt */
+#define	KC8_KENABLE	0x01	/* enable keyboard interrupt */
+#define	CMDBYTE		(KC8_TRANS|KC8_CPU|KC8_MENABLE|KC8_KENABLE)
+
+/* keyboard commands */
+#define	KBC_RESET	0xFF	/* reset the keyboard */
+#define	KBC_RESEND	0xFE	/* request the keyboard resend the last byte */
+#define	KBC_SETDEFAULT	0xF6	/* resets keyboard to its power-on defaults */
+#define	KBC_DISABLE	0xF5	/* as per KBC_SETDEFAULT, but also disable key scanning */
+#define	KBC_ENABLE	0xF4	/* enable key scanning */
+#define	KBC_TYPEMATIC	0xF3	/* set typematic rate and delay */
+#define	KBC_SETTABLE	0xF0	/* set scancode translation table */
+#define	KBC_MODEIND	0xED	/* set mode indicators (i.e. LEDs) */
+#define	KBC_ECHO	0xEE	/* request an echo from the keyboard */
+
+/* keyboard responses */
+#define	KBR_EXTENDED	0xE0	/* extended key sequence */
+#define	KBR_RESEND	0xFE	/* needs resend of command */
+#define	KBR_ACK		0xFA	/* received a valid command */
+#define	KBR_OVERRUN	0x00	/* flooded */
+#define	KBR_FAILURE	0xFD	/* diagnosic failure */
+#define	KBR_BREAK	0xF0	/* break code prefix - sent on key release */
+#define	KBR_RSTDONE	0xAA	/* reset complete */
+#define	KBR_ECHO	0xEE	/* echo response */
+
+
+#ifdef _KERNEL
+
+static __inline int      kb_output_wait __P((void));
+static __inline int      kb_input_wait  __P((void));
+static __inline void     kb_input_flush __P((void));
+static __inline u_int8_t kb_get8042     __P((void));
+static __inline int	 kb_put8042     __P((u_char));
+
+static int kb_cmd_port;
+static int kb_data_port;     
+
+static __inline int
+kb_output_wait()
+{
+	int	to = 100000;
+
+	while(to--) {
+		if((inb(kb_cmd_port) & KBS_IBF) == 0) {
+			DELAY(10);
+			return(1);
+		}
+	}
+	return(0);
+}
+
+static __inline int
+kb_input_wait()
+{
+	int	to = 100000;
+
+	while(to--) {
+		if((inb(kb_cmd_port) & KBS_DIB) == 0) {
+			DELAY(10);
+			return(1);
+		}
+	}
+	return(0);
+}
+
+static __inline void
+kb_input_flush()
+{
+	u_int c;
+
+	while((c = inb(kb_cmd_port) & (KBS_DIB | KBS_IBF))) {
+		if(c == KBS_DIB) {
+			DELAY(10);
+			c = inb(kb_data_port);
+		}
+	}
+}
+
+static __inline u_int8_t
+kb_get8042()
+{
+	if(!kb_output_wait())
+		return(0);
+	outb(kb_cmd_port, K_LDCMDBYTE);
+	if(!kb_input_wait())
+		return(0);
+	return(inb(kb_data_port));
+}
+
+static __inline int
+kb_put8042(v)
+	u_char v;
+{
+	if(!kb_output_wait())
+		return(0);
+	outb(kb_cmd_port, K_LDCMDBYTE);
+	if(!kb_output_wait())
+		return(0);
+	outb(kb_data_port, v);
+	return(1);
+}
+
+
+#endif /* _KERNEL */
+
+#endif /* _KBDREG_H_ */
diff --git a/sys/arch/mips/include/kcore.h b/sys/arch/mips/include/kcore.h
new file mode 100644
index 00000000000..f79c1af8303
--- /dev/null
+++ b/sys/arch/mips/include/kcore.h
@@ -0,0 +1,45 @@
+/*	$OpenBSD: kcore.h,v 1.1 1998/01/28 11:14:44 pefo Exp $	*/
+/*	$NetBSD: kcore.h,v 1.1 1996/03/10 21:55:18 leo Exp $	*/
+
+/*
+ * Copyright (c) 1996 Leo Weppelman.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Leo Weppelman.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _MACHINE_KCORE_H_
+#define	_MACHINE_KCORE_H_
+
+#define	NPHYS_RAM_SEGS	8
+
+typedef struct cpu_kcore_hdr {
+	vm_offset_t	kernel_pa;	/* Phys. address of kernel VA 0	*/
+	int		mmutype;
+	phys_ram_seg_t  ram_segs[NPHYS_RAM_SEGS];
+} cpu_kcore_hdr_t;
+
+#endif /* _MACHINE_KCORE_H_ */
diff --git a/sys/arch/mips/include/kdbparam.h b/sys/arch/mips/include/kdbparam.h
new file mode 100644
index 00000000000..cc26debe95d
--- /dev/null
+++ b/sys/arch/mips/include/kdbparam.h
@@ -0,0 +1,74 @@
+/*	$OpenBSD: kdbparam.h,v 1.1 1998/01/28 11:14:45 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)kdbparam.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Machine dependent definitions for kdb.
+ */
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define kdbshorten(w)	((w) & 0xFFFF)
+#define	kdbbyte(w)	((w) & 0xFF)
+#define	kdbitol(a,b)	((long)(((b) << 16) | ((a) & 0xFFFF)))
+#define	kdbbtol(a)	((long)(a))
+#endif
+
+#define LPRMODE		"%R"
+#define OFFMODE		"+%R"
+
+#define	SETBP(ins)	BREAK_BRKPT
+
+/* return the program counter value modified if we are in a delay slot */
+#define	kdbgetpc(pcb)		(kdbvar[kdbvarchk('t')] < 0 ? \
+	(pcb).pcb_regs[34] + 4 : (pcb).pcb_regs[34])
+#define	kdbishiddenreg(p)	((p) >= &kdbreglist[33])
+#define	kdbisbreak(type)	(((type) & CR_EXC_CODE) == 0x24)
+
+/* check for address wrap around */
+#define	kdbaddrwrap(addr,newaddr)	(((addr)^(newaddr)) >> 31)
+
+/* declare machine dependent routines defined in kadb.c */
+void	kdbprinttrap __P((unsigned, unsigned));
+void	kdbsetsstep __P((void));
+void	kdbclrsstep __P((void));
+void	kdbreadc __P((char *));
+void	kdbwrite __P((char *, int));
+void	kdbprintins __P((int, long));
+void	kdbstacktrace __P((int));
+char	*kdbmalloc __P((int));
diff --git a/sys/arch/mips/include/limits.h b/sys/arch/mips/include/limits.h
new file mode 100644
index 00000000000..335de6f0b60
--- /dev/null
+++ b/sys/arch/mips/include/limits.h
@@ -0,0 +1,105 @@
+/*	$OpenBSD: limits.h,v 1.1 1998/01/28 11:14:45 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)limits.h	8.3 (Berkeley) 1/4/94
+ */
+
+#ifndef _MACHINE_LIMITS_H_
+#define _MACHINE_LIMITS_H_
+
+#define	CHAR_BIT	8		/* number of bits in a char */
+#define	MB_LEN_MAX	6		/* Allow 31 bit UTF2 */
+
+#ifdef _KERNEL
+#define	CLK_TCK		100		/* ticks per second */
+#endif
+
+/*
+ * According to ANSI (section 2.2.4.2), the values below must be usable by
+ * #if preprocessing directives.  Additionally, the expression must have the
+ * same type as would an expression that is an object of the corresponding
+ * type converted according to the integral promotions.  The subtraction for
+ * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
+ * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
+ * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
+ * are written as hex so that GCC will be quiet about large integer constants.
+ */
+#define	SCHAR_MAX	127		/* min value for a signed char */
+#define	SCHAR_MIN	(-128)		/* max value for a signed char */
+
+#define	UCHAR_MAX	255		/* max value for an unsigned char */
+#define	CHAR_MAX	127		/* max value for a char */
+#define	CHAR_MIN	(-128)		/* min value for a char */
+
+#define	USHRT_MAX	65535		/* max value for an unsigned short */
+#define	SHRT_MAX	32767		/* max value for a short */
+#define	SHRT_MIN	(-32768)	/* min value for a short */
+
+#define	UINT_MAX	0xffffffff	/* max value for an unsigned int */
+#define	INT_MAX		2147483647	/* max value for an int */
+#define	INT_MIN		(-2147483647-1)	/* min value for an int */
+
+#define	ULONG_MAX	0xffffffff	/* max value for an unsigned long */
+#define	LONG_MAX	2147483647	/* max value for a long */
+#define	LONG_MIN	(-2147483647-1)	/* min value for a long */
+
+#if !defined(_ANSI_SOURCE)
+#define	SSIZE_MAX	INT_MAX		/* max value for a ssize_t */
+
+#if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
+#define	SIZE_T_MAX	UINT_MAX	/* max value for a size_t */
+
+/* GCC requires that quad constants be written as expressions. */
+#define	UQUAD_MAX	((u_quad_t)0-1)	/* max value for a uquad_t */
+					/* max value for a quad_t */
+#define	QUAD_MAX	((quad_t)(UQUAD_MAX >> 1))
+#define	QUAD_MIN	(-QUAD_MAX-1)	/* min value for a quad_t */
+
+#endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */
+#endif /* !_ANSI_SOURCE */
+
+#if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
+#define LONG_BIT	32
+#define WORD_BIT	32
+
+#define DBL_DIG		15
+#define DBL_MAX		1.797693134862316E+308
+#define DBL_MIN		2.225073858507201E-308
+
+#define FLT_DIG		6
+#define FLT_MAX		3.40282347E+38F
+#define FLT_MIN		1.17549435E-38F
+#endif
+
+#endif /* _MACHINE_LIMITS_H_ */
diff --git a/sys/arch/mips/include/link.h b/sys/arch/mips/include/link.h
new file mode 100644
index 00000000000..96a53129a22
--- /dev/null
+++ b/sys/arch/mips/include/link.h
@@ -0,0 +1,125 @@
+/*	$OpenBSD: link.h,v 1.1 1998/01/28 11:14:46 pefo Exp $ */
+
+/*
+ * Copyright (c) 1996 Per Fogelstrom
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed under OpenBSD by
+ *	Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifndef _MACHINE_LINK_H
+#define _MACHINE_LINK_H
+ 
+#include <elf_abi.h>
+#include <machine/elf_abi.h>
+
+/*
+ *	Debug rendezvous struct. Pointer to this is set up in the
+ *	target code pointed by the DT_MIPS_RLD_MAP tag. If it is
+ *	defined.
+ */
+
+struct r_debug {
+	int	r_version;		/* Protocol version.	*/
+    	struct link_map *r_map;		/* Head of list of loaded objects.  */
+
+    /* This is the address of a function internal to the run-time linker,
+       that will always be called when the linker begins to map in a
+       library or unmap it, and again when the mapping change is complete.
+       The debugger can set a breakpoint at this address if it wants to
+       notice shared object mapping changes.  */              
+	Elf32_Addr r_brk;                                            
+	enum {
+        /* This state value describes the mapping change taking place when
+           the `r_brk' address is called.  */                      
+		RT_CONSISTENT,          /* Mapping change is complete.  */
+		RT_ADD,                 /* Adding a new object.  */
+		RT_DELETE,              /* Removing an object mapping.  */
+	} r_state;
+
+	Elf32_Addr r_ldbase;        /* Base address the linker is loaded at.  */
+  };            
+
+/* This symbol refers to the "dynamic structure" in the `.dynamic' section
+   of whatever module refers to `_DYNAMIC'.  So, to find its own
+   `struct r_debug', a program could do:
+     for (dyn = _DYNAMIC; dyn->d_tag != DT_NULL)
+       if (dyn->d_tag == DT_MIPS_RLD_MAP) r_debug = (struct r_debug) dyn->d_un.d_ptr;
+   */
+
+extern Elf32_Dyn _DYNAMIC[];
+
+
+/* Structure describing a loaded shared object.  The `l_next' and `l_prev'
+   members form a chain of all the shared objects loaded at startup.
+
+   These data structures exist in space used by the run-time dynamic linker;
+   modifying them may have disastrous results.  */
+
+struct link_map
+  {
+    /* These first few members are part of the protocol with the debugger.
+       This is the same format used in SVR4.  */
+
+    Elf32_Addr l_addr;		/* Base address shared object is loaded at.  */
+    Elf32_Addr l_offs;		/* Offset */
+    char *l_name;		/* Absolute file name object was found in.  */
+    Elf32_Dyn *l_ld;		/* Dynamic section of the shared object.  */
+    struct link_map *l_next, *l_prev; /* Chain of loaded objects.  */
+
+    /* All following members are internal to the dynamic linker.
+       They may change without notice.  */
+
+    const char *l_libname;	/* Name requested (before search).  */
+
+    /* Indexed pointers to dynamic section.  */
+    Elf32_Dyn *l_info[DT_NUM + DT_PROCNUM];
+
+    const Elf32_Phdr *l_phdr;	/* Pointer to program header table in core.  */
+    Elf32_Word l_phnum;		/* Number of program header entries.  */
+    Elf32_Addr l_entry;		/* Entry point location.  */
+
+    /* Symbol hash table.  */
+    Elf32_Word l_nbuckets;
+    const Elf32_Word *l_buckets, *l_chain;
+
+    unsigned int l_opencount;	/* Reference count for dlopen/dlclose.  */
+    enum			/* Where this object came from.  */
+      {
+	lt_executable,		/* The main executable program.  */
+	lt_interpreter,		/* The interpreter: the dynamic linker.  */
+	lt_library,		/* Library needed by main executable.  */
+	lt_loaded,		/* Extra run-time loaded shared object.  */
+      } l_type:2;
+    unsigned int l_deps_loaded:1; /* Nonzero if DT_NEEDED items loaded.  */
+    unsigned int l_relocated:1;	/* Nonzero if object's relocations done.  */
+    unsigned int l_init_called:1; /* Nonzero if DT_INIT function called.  */
+    unsigned int l_init_running:1; /* Nonzero while DT_INIT function runs.  */
+  };
+
+#endif /* _MACHINE_LINK_H */
diff --git a/sys/arch/mips/include/memconf.h b/sys/arch/mips/include/memconf.h
new file mode 100644
index 00000000000..1b3b3c8e76d
--- /dev/null
+++ b/sys/arch/mips/include/memconf.h
@@ -0,0 +1,50 @@
+/*	$OpenBSD: memconf.h,v 1.1 1998/01/28 11:14:48 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1996 Per Fogelstrom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Memory config list used by pmap_bootstrap.
+ */
+
+#ifndef _MACHINE_MEMCONF_H_
+#define _MACHINE_MEMCONF_H_
+
+struct mem_descriptor {
+	vm_offset_t	mem_start;
+	u_int		mem_size;
+};
+
+#ifdef _KERNEL
+#define	MAXMEMSEGS	16
+extern struct mem_descriptor mem_layout[];
+#endif
+
+#endif /* _MACHINE_MEMCONF_H_ */
diff --git a/sys/arch/mips/include/mips_opcode.h b/sys/arch/mips/include/mips_opcode.h
new file mode 100644
index 00000000000..ea19d727d29
--- /dev/null
+++ b/sys/arch/mips/include/mips_opcode.h
@@ -0,0 +1,296 @@
+/*      $OpenBSD: mips_opcode.h,v 1.1 1998/01/28 11:14:48 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)mips_opcode.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _MACHINE_MIPS_OPCODE_H
+#define _MACHINE_MIPS_OPCODE_H
+/*
+ * Define the instruction formats and opcode values for the
+ * MIPS instruction set.
+ */
+
+/*
+ * Define the instruction formats.
+ */
+typedef union {
+	unsigned word;
+
+#if BYTE_ORDER == BIG_ENDIAN
+	struct {
+		unsigned op: 6;
+		unsigned rs: 5;
+		unsigned rt: 5;
+		unsigned imm: 16;
+	} IType;
+
+	struct {
+		unsigned op: 6;
+		unsigned target: 26;
+	} JType;
+
+	struct {
+		unsigned op: 6;
+		unsigned rs: 5;
+		unsigned rt: 5;
+		unsigned rd: 5;
+		unsigned shamt: 5;
+		unsigned func: 6;
+	} RType;
+
+	struct {
+		unsigned op: 6;		/* always '0x11' */
+		unsigned : 1;		/* always '1' */
+		unsigned fmt: 4;
+		unsigned ft: 5;
+		unsigned fs: 5;
+		unsigned fd: 5;
+		unsigned func: 6;
+	} FRType;
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+	struct {
+		unsigned imm: 16;
+		unsigned rt: 5;
+		unsigned rs: 5;
+		unsigned op: 6;
+	} IType;
+
+	struct {
+		unsigned target: 26;
+		unsigned op: 6;
+	} JType;
+
+	struct {
+		unsigned func: 6;
+		unsigned shamt: 5;
+		unsigned rd: 5;
+		unsigned rt: 5;
+		unsigned rs: 5;
+		unsigned op: 6;
+	} RType;
+
+	struct {
+		unsigned func: 6;
+		unsigned fd: 5;
+		unsigned fs: 5;
+		unsigned ft: 5;
+		unsigned fmt: 4;
+		unsigned : 1;		/* always '1' */
+		unsigned op: 6;		/* always '0x11' */
+	} FRType;
+#endif
+} InstFmt;
+
+/*
+ * Values for the 'op' field.
+ */
+#define OP_SPECIAL	000
+#define OP_BCOND	001
+#define OP_J		002
+#define	OP_JAL		003
+#define OP_BEQ		004
+#define OP_BNE		005
+#define OP_BLEZ		006
+#define OP_BGTZ		007
+
+#define OP_ADDI		010
+#define OP_ADDIU	011
+#define OP_SLTI		012
+#define OP_SLTIU	013
+#define OP_ANDI		014
+#define OP_ORI		015
+#define OP_XORI		016
+#define OP_LUI		017
+
+#define OP_COP0		020
+#define OP_COP1		021
+#define OP_COP2		022
+#define OP_COP3		023
+#define	OP_BEQL		024
+#define	OP_BNEL		025
+#define	OP_BLEZL	026
+#define	OP_BGTZL	027
+
+#define	OP_DADDI	030
+#define	OP_DADDIU	031
+#define	OP_LDL		032
+#define	OP_LDR		033
+
+#define	OP_LB		040
+#define	OP_LH		041
+#define OP_LWL		042
+#define OP_LW		043
+#define OP_LBU		044
+#define OP_LHU		045
+#define OP_LWR		046
+#define	OP_LHU		045
+#define	OP_LWR		046
+#define	OP_LWU		047
+
+#define OP_SB		050
+#define OP_SH		051
+#define OP_SWL		052
+#define OP_SW		053
+#define	OP_SDL		054
+#define	OP_SDR		055
+#define OP_SWR		056
+#define	OP_CACHE	057
+
+#define OP_LL		060
+#define OP_LWC1		061
+#define OP_LWC2		062
+#define OP_LWC3		063
+#define	OP_LLD		064
+#define	OP_LD		067
+
+#define OP_SC		070
+#define OP_SWC1		071
+#define OP_SWC2		072
+#define OP_SWC3		073
+#define	OP_SCD		074
+#define	OP_SD		077
+
+/*
+ * Values for the 'func' field when 'op' == OP_SPECIAL.
+ */
+#define OP_SLL		000
+#define OP_SRL		002
+#define OP_SRA		003
+#define OP_SLLV		004
+#define OP_SRLV		006
+#define OP_SRAV		007
+
+#define OP_JR		010
+#define OP_JALR		011
+#define OP_SYSCALL	014
+#define OP_BREAK	015
+#define	OP_SYNC		017
+
+#define OP_MFHI		020
+#define OP_MTHI		021
+#define OP_MFLO		022
+#define OP_MTLO		023
+#define	OP_DSLLV	024
+#define	OP_DSRLV	026
+#define	OP_DSRAV	027
+
+#define OP_MULT		030
+#define OP_MULTU	031
+#define OP_DIV		032
+#define OP_DIVU		033
+#define	OP_DMULT	034
+#define	OP_DMULTU	035
+#define	OP_DDIV		036
+#define	OP_DDIVU	037
+
+
+#define OP_ADD		040
+#define OP_ADDU		041
+#define OP_SUB		042
+#define OP_SUBU		043
+#define OP_AND		044
+#define OP_OR		045
+#define OP_XOR		046
+#define OP_NOR		047
+
+#define OP_SLT		052
+#define OP_SLTU		053
+#define	OP_DADD		054
+#define	OP_DADDU	055
+#define	OP_DSUB		056
+#define	OP_DSUBU	057
+
+#define	OP_TGE		060
+#define	OP_TGEU		061
+#define	OP_TLT		062
+#define	OP_TLTU		063
+#define	OP_TEQ		064
+#define	OP_TNE		066
+
+#define	OP_DSLL		070
+#define	OP_DSRL		072
+#define	OP_DSRA		073
+#define	OP_DSLL32	074
+#define	OP_DSRL32	076
+#define	OP_DSRA32	077
+
+/*
+ * Values for the 'func' field when 'op' == OP_BCOND.
+ */
+#define OP_BLTZ		000
+#define OP_BGEZ		001
+#define	OP_BLTZL	002
+#define	OP_BGEZL	003
+
+#define	OP_TGEI		010
+#define	OP_TGEIU	011
+#define	OP_TLTI		012
+#define	OP_TLTIU	013
+#define	OP_TEQI		014
+#define	OP_TNEI		016
+
+#define OP_BLTZAL	020
+#define	OP_BLTZAL	020
+#define OP_BGEZAL	021
+#define OP_BLTZALL	022
+#define	OP_BGEZALL	023
+
+/*
+ * Values for the 'rs' field when 'op' == OP_COPz.
+ */
+#define OP_MF		000
+#define	OP_DMF		001
+#define OP_MT		004
+#define	OP_DMT		005
+#define OP_BCx		010
+#define OP_BCy		014
+#define OP_CF		002
+#define OP_CT		006
+
+/*
+ * Values for the 'rt' field when 'op' == OP_COPz.
+ */
+#define COPz_BC_TF_MASK	0x01
+#define COPz_BC_TRUE	0x01
+#define COPz_BC_FALSE	0x00
+#define COPz_BCL_TF_MASK	0x02
+#define COPz_BCL_TRUE	0x02
+#define COPz_BCL_FALSE	0x00
+
+#endif /* _MACHINE_MIPS_OPCODE_H */
diff --git a/sys/arch/mips/include/param.h b/sys/arch/mips/include/param.h
new file mode 100644
index 00000000000..eded38fa051
--- /dev/null
+++ b/sys/arch/mips/include/param.h
@@ -0,0 +1,160 @@
+/*      $OpenBSD: param.h,v 1.1 1998/01/28 11:14:49 pefo Exp $ */
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: machparam.h 1.11 89/08/14
+ *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _MACHINE_PARAM_H_
+#define _MACHINE_PARAM_H_
+
+#ifdef _KERNEL
+#ifdef _LOCORE
+#include <machine/psl.h>
+#else
+#include <machine/cpu.h>
+#endif
+#endif
+
+/*
+ * Machine dependent constants for MIPS machines.
+ */
+#define MACHINE_ARCH	"mips"
+#define _MACHINE_ARCH	mips
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value for all
+ * data types (int, long, ...).   The result is u_int and must be cast to
+ * any desired pointer type.
+ */
+#define	ALIGNBYTES	7
+#define	ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
+
+#define	NBPG		4096		/* bytes/page */
+#define	PGOFSET		(NBPG-1)	/* byte offset into page */
+#define	PGSHIFT		12		/* LOG2(NBPG) */
+#define	NPTEPG		(NBPG/4)
+
+#define NBSEG		0x400000	/* bytes/segment */
+#define	SEGOFSET	(NBSEG-1)	/* byte offset into segment */
+#define	SEGSHIFT	22		/* LOG2(NBSEG) */
+
+#define	KERNBASE	0x80000000	/* start of kernel virtual */
+#define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)
+
+#define	DEV_BSIZE	512
+#define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
+#define BLKDEV_IOSIZE	2048
+/* XXX Maxphys temporary changed to 32K while SCSI driver is fixed. */
+#define	MAXPHYS		(32 * 1024)	/* max raw I/O transfer size */
+
+#define	CLSIZE		1
+#define	CLSIZELOG2	0
+
+/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
+#define	SSIZE		1		/* initial stack size/NBPG */
+#define	SINCR		1		/* increment of stack/NBPG */
+
+#define	UPAGES		2		/* pages of u-area */
+#if defined(_LOCORE) && defined(notyet)
+#define	UADDR		0xffffffffffffc000	/* address of u */
+#else
+#define	UADDR		0xffffc000	/* address of u */
+#endif
+#define USPACE		(UPAGES*NBPG)	/* size of u-area in bytes */
+#define	UVPN		(UADDR>>PGSHIFT)/* virtual page number of u */
+#define	KERNELSTACK	(UADDR+UPAGES*NBPG)	/* top of kernel stack */
+
+/*
+ * Constants related to network buffer management.
+ * MCLBYTES must be no larger than CLBYTES (the software page size), and,
+ * on machines that exchange pages of input or output buffers with mbuf
+ * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
+ * of the hardware page size.
+ */
+#define	MSIZE		128		/* size of an mbuf */
+#define	MCLSHIFT	11
+#define	MCLBYTES	(1 << MCLSHIFT)	/* enough for whole Ethernet packet */
+#define	MCLOFSET	(MCLBYTES - 1)
+#ifndef NMBCLUSTERS
+#ifdef GATEWAY
+#define	NMBCLUSTERS	2048		/* map size, max cluster allocation */
+#else
+#define	NMBCLUSTERS	1024		/* map size, max cluster allocation */
+#endif
+#endif
+
+/*
+ * Size of kernel malloc arena in CLBYTES-sized logical pages
+ */ 
+#ifndef NKMEMCLUSTERS
+#define	NKMEMCLUSTERS	(4096*1024/CLBYTES)
+#endif
+
+/* pages ("clicks") (4096 bytes) to disk blocks */
+#define	ctod(x)	((x) << (PGSHIFT - DEV_BSHIFT))
+#define	dtoc(x)	((x) >> (PGSHIFT - DEV_BSHIFT))
+
+/* pages to bytes */
+#define	ctob(x)	((x) << PGSHIFT)
+#define btoc(x) (((x) + PGOFSET) >> PGSHIFT)
+
+/* bytes to disk blocks */
+#define	btodb(x)	((x) >> DEV_BSHIFT)
+#define dbtob(x)	((x) << DEV_BSHIFT)
+
+/*
+ * Map a ``block device block'' to a file system block.
+ * This should be device dependent, and should use the bsize
+ * field from the disk label.
+ * For now though just use DEV_BSIZE.
+ */
+#define	bdbtofsb(bn)	((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
+
+/*
+ * Conversion macros
+ */
+#define mips_round_page(x)	((((unsigned)(x)) + NBPG - 1) & ~(NBPG-1))
+#define mips_trunc_page(x)	((unsigned)(x) & ~(NBPG-1))
+#define mips_btop(x)		((unsigned)(x) >> PGSHIFT)
+#define mips_ptob(x)		((unsigned)(x) << PGSHIFT)
+
+#define	DELAY(n)	{ register int N = (n); while (--N > 0); }
+
+#endif /* _MACHINE_PARAM_H_ */
diff --git a/sys/arch/mips/include/pcb.h b/sys/arch/mips/include/pcb.h
new file mode 100644
index 00000000000..3c3038c10f8
--- /dev/null
+++ b/sys/arch/mips/include/pcb.h
@@ -0,0 +1,61 @@
+/*      $OpenBSD: pcb.h,v 1.1 1998/01/28 11:14:49 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: pcb.h 1.13 89/04/23
+ *	from: @(#)pcb.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * ARC process control block
+ */
+struct pcb
+{
+	int	pcb_regs[71];	/* saved CPU and floating point registers */
+	label_t	pcb_context;	/* kernel context for resume */
+	int	pcb_onfault;	/* for copyin/copyout faults */
+	void	*pcb_segtab;	/* copy of pmap pm_segtab */
+};
+
+/*
+ * The pcb is augmented with machine-dependent additional data for
+ * core dumps. For the PICA, there is nothing to add.
+ */
+struct md_coredump {
+	long	md_pad[8];
+};
diff --git a/sys/arch/mips/include/pio.h b/sys/arch/mips/include/pio.h
new file mode 100644
index 00000000000..7ac00c0c6e5
--- /dev/null
+++ b/sys/arch/mips/include/pio.h
@@ -0,0 +1,57 @@
+/*	$OpenBSD: pio.h,v 1.1 1998/01/28 11:14:50 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1995 Per Fogelstrom.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _MACHINE_PIO_H_
+#define _MACHINE_PIO_H_
+
+/*
+ * I/O macros.
+ */
+
+#define	outb(a,v)	(*(volatile unsigned char*)(a) = (v))
+#define	outw(a,v)	(*(volatile unsigned short*)(a) = (v))
+#define	out16(a,v)	outw(a,v)
+#define	outl(a,v)	(*(volatile unsigned int*)(a) = (v))
+#define	out32(a,v)	outl(a,v)
+#define	inb(a)		(*(volatile unsigned char*)(a))
+#define	inw(a)		(*(volatile unsigned short*)(a))
+#define	in16(a)		inw(a)
+#define	inl(a)		(*(volatile unsigned int*)(a))
+#define	in32(a)		inl(a)
+
+void insb __P((u_int8_t *, u_int8_t *,int));
+void insw __P((u_int16_t *, u_int16_t *,int));
+void insl __P((u_int32_t *, u_int32_t *,int));
+void outsb __P((u_int8_t *, const u_int8_t *,int));
+void outsw __P((u_int16_t *, const u_int16_t *,int));
+void outsl __P((u_int32_t *, const u_int32_t *,int));
+
+#endif /*_MACHINE_PIO_H_*/
diff --git a/sys/arch/mips/include/pmap.h b/sys/arch/mips/include/pmap.h
new file mode 100644
index 00000000000..c1f1e197d60
--- /dev/null
+++ b/sys/arch/mips/include/pmap.h
@@ -0,0 +1,120 @@
+/*      $OpenBSD: pmap.h,v 1.1 1998/01/28 11:14:51 pefo Exp $ */
+
+/* 
+ * Copyright (c) 1987 Carnegie-Mellon University
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)pmap.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef	_MACHINE_PMAP_H_
+#define	_MACHINE_PMAP_H_
+
+/*
+ * The user address space is 2Gb (0x0 - 0x80000000).
+ * User programs are laid out in memory as follows:
+ *			address
+ *	USRTEXT		0x00400000
+ *	USRDATA		0x10000000
+ *	USRSTACK	0x7FFFFFFF
+ *
+ * The user address space is mapped using a two level structure where
+ * virtual address bits 30..22 are used to index into a segment table which
+ * points to a page worth of PTEs (4096 page can hold 1024 PTEs).
+ * Bits 21..12 are then used to index a PTE which describes a page within 
+ * a segment.
+ *
+ * The wired entries in the TLB will contain the following:
+ *	0-1	(UPAGES)	for curproc user struct and kernel stack.
+ *
+ * Note: The kernel doesn't use the same data structures as user programs.
+ * All the PTE entries are stored in a single array in Sysmap which is
+ * dynamically allocated at boot time.
+ */
+
+#define mips_trunc_seg(x)	((vm_offset_t)(x) & ~SEGOFSET)
+#define mips_round_seg(x)	(((vm_offset_t)(x) + SEGOFSET) & ~SEGOFSET)
+#define pmap_segmap(m, v)	((m)->pm_segtab->seg_tab[((v) >> SEGSHIFT)])
+
+#define PMAP_SEGTABSIZE		512
+
+union pt_entry;
+
+struct segtab {
+	union pt_entry	*seg_tab[PMAP_SEGTABSIZE];
+};
+
+/*
+ * Machine dependent pmap structure.
+ */
+typedef struct pmap {
+	int			pm_count;	/* pmap reference count */
+	simple_lock_data_t	pm_lock;	/* lock on pmap */
+	struct pmap_statistics	pm_stats;	/* pmap statistics */
+	int			pm_tlbpid;	/* address space tag */
+	u_int			pm_tlbgen;	/* TLB PID generation number */
+	struct segtab		*pm_segtab;	/* pointers to pages of PTEs */
+} *pmap_t;
+
+/*
+ * Defines for pmap_attributes[phys_mach_page];
+ */
+#define PMAP_ATTR_MOD	0x01	/* page has been modified */
+#define PMAP_ATTR_REF	0x02	/* page has been referenced */
+
+#ifdef	_KERNEL
+extern	char *pmap_attributes;		/* reference and modify bits */
+extern	struct pmap kernel_pmap_store;
+
+#define pmap_resident_count(pmap)       ((pmap)->pm_stats.resident_count)
+#define	pmap_wired_count(pmap)		((pmap)->pm_stats.wired_count)
+#define pmap_kernel() (&kernel_pmap_store)
+
+#define PMAP_PREFER(pa, va)             pmap_prefer((pa), (va))
+
+void pmap_prefer __P((vm_offset_t, vm_offset_t *));
+
+void pmap_bootstrap __P((vm_offset_t));
+void pmap_zero_page __P((vm_offset_t));
+int pmap_is_page_ro __P(( pmap_t, vm_offset_t, int));
+int pmap_alloc_tlbpid __P((struct proc *));
+int pmap_remove_pv __P((pmap_t, vm_offset_t, vm_offset_t));
+int pmap_is_pa_mapped __P((vm_offset_t));
+vm_offset_t pmap_pa_to_va __P((vm_offset_t));
+void pmap_page_cache __P((vm_offset_t, int));;
+
+#endif	/* _KERNEL */
+
+#endif	/* _MACHINE_PMAP_H_ */
diff --git a/sys/arch/mips/include/proc.h b/sys/arch/mips/include/proc.h
new file mode 100644
index 00000000000..cd69a36aab1
--- /dev/null
+++ b/sys/arch/mips/include/proc.h
@@ -0,0 +1,58 @@
+/*	$OpenBSD: proc.h,v 1.1 1998/01/28 11:14:51 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)proc.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef	_MACHINE_PROC_H_
+#define	_MACHINE_PROC_H_
+
+/*
+ * Machine-dependent part of the proc structure.
+ */
+struct mdproc {
+	int	*md_regs;		/* registers on current frame */
+	int	md_flags;		/* machine-dependent flags */
+	int	md_upte[UPAGES];	/* ptes for mapping u page */
+	int	md_ss_addr;		/* single step address for ptrace */
+	int	md_ss_instr;		/* single step instruction for ptrace */
+};
+
+/* md_flags */
+#define	MDP_FPUSED	0x0001	/* floating point coprocessor used */
+
+#endif	/* _MACHINE_PROC_H_ */
diff --git a/sys/arch/mips/include/profile.h b/sys/arch/mips/include/profile.h
new file mode 100644
index 00000000000..a1144be3997
--- /dev/null
+++ b/sys/arch/mips/include/profile.h
@@ -0,0 +1,88 @@
+/*      $OpenBSD: profile.h,v 1.1 1998/01/28 11:14:52 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)profile.h	8.1 (Berkeley) 6/10/93
+ */
+#ifndef	_MACHINE_PROFILE_H_
+#define	_MACHINE_PROFILE_H_
+
+#define	_MCOUNT_DECL static void ___mcount
+
+/*XXX The cprestore instruction is a "dummy" to shut up as(1). */
+
+#define	MCOUNT \
+	__asm(".globl _mcount;"		\
+	".type _mcount,@function;"	\
+	"_mcount:;"			\
+	".set noreorder;"		\
+	".set noat;"			\
+	".cpload $25;"			\
+	".cprestore 4;"			\
+	"sw $4,8($29);"			\
+	"sw $5,12($29);"		\
+	"sw $6,16($29);"		\
+	"sw $7,20($29);"		\
+	"sw $1,0($29);"			\
+	"sw $31,4($29);"		\
+	"move $5,$31;"			\
+	"jal ___mcount;"		\
+	"move $4,$1;"			\
+	"lw $4,8($29);"			\
+	"lw $5,12($29);"		\
+	"lw $6,16($29);"		\
+	"lw $7,20($29);"		\
+	"lw $31,4($29);"		\
+	"lw $1,0($29);"			\
+	"addu $29,$29,8;"		\
+	"j $31;"			\
+	"move $31,$1;"			\
+	".set reorder;"			\
+	".set at");
+
+#ifdef _KERNEL
+/*
+ * The following two macros do splhigh and splx respectively.
+ * They have to be defined this way because these are real
+ * functions on the MIPS, and we do not want to invoke mcount
+ * recursively.
+ */
+#define	MCOUNT_ENTER	s = _splhigh()
+
+#define	MCOUNT_EXIT	_splx(s)
+#endif /* _KERNEL */
+
+#endif /* _MACHINE_PROFILE_H_ */
diff --git a/sys/arch/mips/include/ptrace.h b/sys/arch/mips/include/ptrace.h
new file mode 100644
index 00000000000..ee03e08d26b
--- /dev/null
+++ b/sys/arch/mips/include/ptrace.h
@@ -0,0 +1,45 @@
+/*      $OpenBSD: ptrace.h,v 1.1 1998/01/28 11:14:52 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)ptrace.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Machine dependent trace commands.
+ *
+ */
+
+#define	PT_GETREGS	 (PT_FIRSTMACH+0)
+#define	PT_SETREGS	 (PT_FIRSTMACH+1)
+#define	PT_STEP		 (PT_FIRSTMACH+2)
diff --git a/sys/arch/mips/include/reg.h b/sys/arch/mips/include/reg.h
new file mode 100644
index 00000000000..0c7c746ac3c
--- /dev/null
+++ b/sys/arch/mips/include/reg.h
@@ -0,0 +1,61 @@
+/*	$OpenBSD: reg.h,v 1.1 1998/01/28 11:14:53 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: reg.h 1.1 90/07/09
+ *	@(#)reg.h	8.2 (Berkeley) 1/11/94
+ */
+
+#ifndef _MACHINE_REG_H_
+#define _MACHINE_REG_H_
+/*
+ * Location of the users' stored
+ * registers relative to ZERO.
+ * Usage is p->p_regs[XX].
+ *
+ * must be visible to assembly code.
+ */
+#include <machine/regnum.h>
+
+/*
+ * Register set accessible via /proc/$pid/reg
+ */
+struct reg {
+        int     r_regs[71];	/* numbered as above */
+};
+#endif /*_MACHINE_REG_H_*/
diff --git a/sys/arch/mips/include/regdef.h b/sys/arch/mips/include/regdef.h
new file mode 100644
index 00000000000..3461aa7057b
--- /dev/null
+++ b/sys/arch/mips/include/regdef.h
@@ -0,0 +1,73 @@
+/*	$OpenBSD: regdef.h,v 1.1 1998/01/28 11:14:54 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell. This file is derived from the MIPS RISC
+ * Architecture book by Gerry Kane.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)regdef.h	8.1 (Berkeley) 6/10/93
+ */
+
+#define zero	$0	/* always zero */
+#define AT	$at	/* assembler temp */
+#define v0	$2	/* return value */
+#define v1	$3
+#define a0	$4	/* argument registers */
+#define a1	$5
+#define a2	$6
+#define a3	$7
+#define t0	$8	/* temp registers (not saved across subroutine calls) */
+#define t1	$9
+#define t2	$10
+#define t3	$11
+#define t4	$12
+#define t5	$13
+#define t6	$14
+#define t7	$15
+#define s0	$16	/* saved across subroutine calls (callee saved) */
+#define s1	$17
+#define s2	$18
+#define s3	$19
+#define s4	$20
+#define s5	$21
+#define s6	$22
+#define s7	$23
+#define t8	$24	/* two more temp registers */
+#define t9	$25
+#define k0	$26	/* kernel temporary */
+#define k1	$27
+#define gp	$28	/* global pointer */
+#define sp	$29	/* stack pointer */
+#define s8	$30	/* one more callee saved */
+#define ra	$31	/* return address */
diff --git a/sys/arch/mips/include/regnum.h b/sys/arch/mips/include/regnum.h
new file mode 100644
index 00000000000..32255d07a76
--- /dev/null
+++ b/sys/arch/mips/include/regnum.h
@@ -0,0 +1,135 @@
+/*	$OpenBSD: regnum.h,v 1.1 1998/01/28 11:14:54 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: reg.h 1.1 90/07/09
+ *	@(#)reg.h	8.2 (Berkeley) 1/11/94
+ */
+
+/*
+ * Location of the users' stored
+ * registers relative to ZERO.
+ * Usage is p->p_regs[XX].
+ */
+#define ZERO	0
+#define AST	1
+#define V0	2
+#define V1	3
+#define A0	4
+#define A1	5
+#define A2	6
+#define A3	7
+#define T0	8
+#define T1	9
+#define T2	10
+#define T3	11
+#define T4	12
+#define T5	13
+#define T6	14
+#define T7	15
+#define S0	16
+#define S1	17
+#define S2	18
+#define S3	19
+#define S4	20
+#define S5	21
+#define S6	22
+#define S7	23
+#define T8	24
+#define T9	25
+#define K0	26
+#define K1	27
+#define GP	28
+#define SP	29
+#define S8	30
+#define RA	31
+#define	SR	32
+#define	PS	SR	/* alias for SR */
+#define MULLO	33
+#define MULHI	34
+#define BADVADDR 35
+#define CAUSE	36
+#define	PC	37
+
+#define FPBASE	38
+#define F0	(FPBASE+0)
+#define F1	(FPBASE+1)
+#define F2	(FPBASE+2)
+#define F3	(FPBASE+3)
+#define F4	(FPBASE+4)
+#define F5	(FPBASE+5)
+#define F6	(FPBASE+6)
+#define F7	(FPBASE+7)
+#define F8	(FPBASE+8)
+#define F9	(FPBASE+9)
+#define F10	(FPBASE+10)
+#define F11	(FPBASE+11)
+#define F12	(FPBASE+12)
+#define F13	(FPBASE+13)
+#define F14	(FPBASE+14)
+#define F15	(FPBASE+15)
+#define F16	(FPBASE+16)
+#define F17	(FPBASE+17)
+#define F18	(FPBASE+18)
+#define F19	(FPBASE+19)
+#define F20	(FPBASE+20)
+#define F21	(FPBASE+21)
+#define F22	(FPBASE+22)
+#define F23	(FPBASE+23)
+#define F24	(FPBASE+24)
+#define F25	(FPBASE+25)
+#define F26	(FPBASE+26)
+#define F27	(FPBASE+27)
+#define F28	(FPBASE+28)
+#define F29	(FPBASE+29)
+#define F30	(FPBASE+30)
+#define F31	(FPBASE+31)
+#define	FSR	(FPBASE+32)
+
+#ifdef IPCREG
+#define	NIPCREG (FSR + 1)
+int ipcreg[NIPCREG] = {
+	ZERO, AST, V0, V1, A0, A1, A2, A3, T0, T1, T2, T3, T4, T5, T6, T7,
+	S0, S1, S2, S3, S4, S5, S6, S7, T8, T9, K0, K1, GP, SP, S8, RA,
+	SR, MULLO, MULHI, BADVADDR, CAUSE, PC,
+	F0, F1, F2, F3, F4, F5, F6, F7,
+	F8, F9, F10, F11, F12, F13, F14, F15,
+	F16, F17, F18, F19, F20, F21, F22, F23,
+	F24, F25, F26, F27, F28, F29, F30, F31, FSR,
+};
+#endif
diff --git a/sys/arch/mips/include/reloc.h b/sys/arch/mips/include/reloc.h
new file mode 100644
index 00000000000..0fc60b24444
--- /dev/null
+++ b/sys/arch/mips/include/reloc.h
@@ -0,0 +1,38 @@
+/*      $OpenBSD: reloc.h,v 1.1 1998/01/28 11:14:55 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)reloc.h	8.1 (Berkeley) 6/10/93
+ *	from: Header: reloc.h,v 1.6 92/06/20 09:59:37 torek Exp
+ */
+
diff --git a/sys/arch/mips/include/setjmp.h b/sys/arch/mips/include/setjmp.h
new file mode 100644
index 00000000000..9f1bc6a6eb2
--- /dev/null
+++ b/sys/arch/mips/include/setjmp.h
@@ -0,0 +1,7 @@
+/*	$OpenBSD: setjmp.h,v 1.1 1998/01/28 11:14:56 pefo Exp $	*/
+
+/*
+ * machine/setjmp.h: machine dependent setjmp-related information.
+ */
+
+#define	_JBLEN	83		/* size, in longs, of a jmp_buf */
diff --git a/sys/arch/mips/include/signal.h b/sys/arch/mips/include/signal.h
new file mode 100644
index 00000000000..67629a03ef7
--- /dev/null
+++ b/sys/arch/mips/include/signal.h
@@ -0,0 +1,67 @@
+/*	$OpenBSD: signal.h,v 1.1 1998/01/28 11:14:56 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)signal.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Machine-dependent signal definitions
+ */
+
+typedef int sig_atomic_t;
+
+#ifndef _ANSI_SOURCE
+/*
+ * Information pushed on stack when a signal is delivered.
+ * This is used by the kernel to restore state following
+ * execution of the signal handler.  It is also made available
+ * to the handler to allow it to restore state properly if
+ * a non-standard exit is performed.
+ */
+struct	sigcontext {
+	int	sc_onstack;	/* sigstack state to restore */
+	int	sc_mask;	/* signal mask to restore */
+	int	sc_pc;		/* pc at time of signal */
+	int	sc_regs[32];	/* processor regs 0 to 31 */
+	int	mullo, mulhi;	/* mullo and mulhi registers... */
+	int	sc_fpused;	/* fp has been used */
+	int	sc_fpregs[33];	/* fp regs 0 to 31 and csr */
+	int	sc_fpc_eir;	/* floating point exception instruction reg */
+	int	xxx[8];		/* XXX reserved */ 
+};
+
+#endif	/* !_ANSI_SOURCE */
diff --git a/sys/arch/mips/include/stdarg.h b/sys/arch/mips/include/stdarg.h
new file mode 100644
index 00000000000..06525ef1286
--- /dev/null
+++ b/sys/arch/mips/include/stdarg.h
@@ -0,0 +1,64 @@
+/*	$OpenBSD: stdarg.h,v 1.1 1998/01/28 11:14:57 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)stdarg.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _MACHINE_STDARG_H_
+#define	_MACHINE_STDARG_H_
+
+#include <machine/ansi.h>
+
+typedef _BSD_VA_LIST_	va_list;
+
+#define	__va_promote(type) \
+	(((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
+
+#define	va_start(ap, last) \
+	(ap = ((char *)&(last) + __va_promote(last)))
+
+#ifdef _KERNEL
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type)))[-1]
+#else
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type) == sizeof(int) ? sizeof(type) : \
+		sizeof(type) > sizeof(int) ? \
+		(-(int)(ap) & (sizeof(type) - 1)) + sizeof(type) : \
+		(abort(), 0)))[-1]
+#endif
+
+#define	va_end(ap)	((void) 0)
+
+#endif /* !_MACHINE_STDARG_H_ */
diff --git a/sys/arch/mips/include/trap.h b/sys/arch/mips/include/trap.h
new file mode 100644
index 00000000000..73f2b4b7ea8
--- /dev/null
+++ b/sys/arch/mips/include/trap.h
@@ -0,0 +1,68 @@
+/*      $OpenBSD: trap.h,v 1.1 1998/01/28 11:14:57 pefo Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: trap.h 1.1 90/07/09
+ *	from: @(#)trap.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Trap codes also known in trap.c for name strings.
+ * Used for indexing so modify with care.
+ */
+
+#define T_INT			0	/* Interrupt pending */
+#define T_TLB_MOD		1	/* TLB modified fault */
+#define T_TLB_LD_MISS		2	/* TLB miss on load or ifetch */
+#define T_TLB_ST_MISS		3	/* TLB miss on a store */
+#define T_ADDR_ERR_LD		4	/* Address error on a load or ifetch */
+#define T_ADDR_ERR_ST		5	/* Address error on a store */
+#define T_BUS_ERR_IFETCH	6	/* Bus error on an ifetch */
+#define T_BUS_ERR_LD_ST		7	/* Bus error on a load or store */
+#define T_SYSCALL		8	/* System call */
+#define T_BREAK			9	/* Breakpoint */
+#define T_RES_INST		10	/* Reserved instruction exception */
+#define T_COP_UNUSABLE		11	/* Coprocessor unusable */
+#define T_OVFLOW		12	/* Arithmetic overflow */
+#define	T_TRAP			13	/* Trap instruction */
+#define	T_VCEI			14	/* Viritual coherency instruction */
+#define	T_FPE			15	/* Floating point exception */
+#define	T_WATCH			23	/* Watch address reference */
+#define T_VCED			31	/* Viritual coherency data */
+
+#define	T_USER			0x20	/* user-mode flag or'ed with type */
diff --git a/sys/arch/mips/include/types.h b/sys/arch/mips/include/types.h
new file mode 100644
index 00000000000..74fc2388873
--- /dev/null
+++ b/sys/arch/mips/include/types.h
@@ -0,0 +1,80 @@
+/*	$OpenBSD: types.h,v 1.1 1998/01/28 11:14:58 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)types.h	8.3 (Berkeley) 1/5/94
+ */
+
+#ifndef	_MACHINE_TYPES_H_
+#define	_MACHINE_TYPES_H_
+
+#include <sys/cdefs.h>
+
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+typedef struct _physadr {
+	int r[1];
+} *physadr;
+
+typedef struct label_t {
+	int val[12];
+} label_t;
+#endif
+
+typedef	unsigned long	vm_offset_t;
+typedef	unsigned long	vm_size_t;
+
+/*
+ * Basic integral types.  Omit the typedef if
+ * not possible for a machine/compiler combination.
+ */
+#define	__BIT_TYPES_DEFINED__
+typedef	__signed char		   int8_t;
+typedef	unsigned char		 u_int8_t;
+typedef	short			  int16_t;
+typedef	unsigned short		u_int16_t;
+typedef	int			  int32_t;
+typedef	unsigned int		u_int32_t;
+/* LONGLONG */
+typedef	long long		  int64_t;
+/* LONGLONG */
+typedef	unsigned long long	u_int64_t;
+
+typedef int32_t			register_t;
+
+#define	__SWAP_BROKEN
+#define __FORK_BRAINDAMAGE
+
+#endif	/* _MACHINE_TYPES_H_ */
diff --git a/sys/arch/mips/include/varargs.h b/sys/arch/mips/include/varargs.h
new file mode 100644
index 00000000000..4101abb3c85
--- /dev/null
+++ b/sys/arch/mips/include/varargs.h
@@ -0,0 +1,68 @@
+/*	$OpenBSD: varargs.h,v 1.1 1998/01/28 11:14:59 pefo Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)varargs.h	8.2 (Berkeley) 3/22/94
+ */
+
+#ifndef _MACHINE_VARARGS_H_
+#define	_MACHINE_VARARGS_H_
+
+#include <machine/ansi.h>
+
+typedef _BSD_VA_LIST_	va_list;
+
+#define	va_dcl	int va_alist; ...
+
+#define	va_start(ap) \
+	ap = (char *)&va_alist
+
+#ifdef _KERNEL
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type)))[-1]
+#else
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type) == sizeof(int) ? sizeof(type) : \
+		sizeof(type) > sizeof(int) ? \
+		(-(int)(ap) & (sizeof(type) - 1)) + sizeof(type) : \
+		(abort(), 0)))[-1]
+#endif
+
+#define	va_end(ap)	((void) 0)
+
+#endif /* !_MACHINE_VARARGS_H_ */
diff --git a/sys/arch/mips/include/vmparam.h b/sys/arch/mips/include/vmparam.h
new file mode 100644
index 00000000000..fec40858381
--- /dev/null
+++ b/sys/arch/mips/include/vmparam.h
@@ -0,0 +1,237 @@
+/*	$OpenBSD: vmparam.h,v 1.1 1998/01/28 11:14:59 pefo Exp $	*/
+/*	$NetBSD: vmparam.h,v 1.5 1994/10/26 21:10:10 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: vmparam.h 1.16 91/01/18
+ *	@(#)vmparam.h	8.2 (Berkeley) 4/22/94
+ */
+
+/*
+ * Machine dependent constants mips processors.
+ */
+/*
+ * USRTEXT is the start of the user text/data space, while USRSTACK
+ * is the top (end) of the user stack.
+ */
+#define	USRTEXT		0x00400000
+#define	USRSTACK	0x80000000	/* Start of user stack */
+
+/*
+ * Virtual memory related constants, all in bytes
+ */
+#ifndef MAXTSIZ
+#define	MAXTSIZ		(24*1024*1024)		/* max text size */
+#endif
+#ifndef DFLDSIZ
+#define	DFLDSIZ		(64*1024*1024)		/* initial data size limit */
+#endif
+#ifndef MAXDSIZ
+#define	MAXDSIZ		(256*1024*1024)		/* max data size */
+#endif
+#ifndef	DFLSSIZ
+#define	DFLSSIZ		(1024*1024)		/* initial stack size limit */
+#endif
+#ifndef	MAXSSIZ
+#define	MAXSSIZ		MAXDSIZ			/* max stack size */
+#endif
+
+/*
+ * Default sizes of swap allocation chunks (see dmap.h).
+ * The actual values may be changed in vminit() based on MAXDSIZ.
+ * With MAXDSIZ of 16Mb and NDMAP of 38, dmmax will be 1024.
+ * DMMIN should be at least ctod(1) so that vtod() works.
+ * vminit() insures this.
+ */
+#define	DMMIN	32			/* smallest swap allocation */
+#define	DMMAX	4096			/* largest potential swap allocation */
+
+/*
+ * Sizes of the system and user portions of the system page table.
+ */
+/* SYSPTSIZE IS SILLY; (really number of buffers for I/O) */
+#define	SYSPTSIZE	1228
+#define	USRPTSIZE 	1024
+
+/*
+ * PTEs for mapping user space into the kernel for phyio operations.
+ * 16 pte's are enough to cover 8 disks * MAXBSIZE.
+ */
+#ifndef USRIOSIZE
+#define USRIOSIZE	32
+#endif
+
+/*
+ * PTEs for system V style shared memory.
+ * This is basically slop for kmempt which we actually allocate (malloc) from.
+ */
+#ifndef SHMMAXPGS
+#define SHMMAXPGS	1024		/* 4mb */
+#endif
+
+/*
+ * Boundary at which to place first MAPMEM segment if not explicitly
+ * specified.  Should be a power of two.  This allows some slop for
+ * the data segment to grow underneath the first mapped segment.
+ */
+#define MMSEG		0x200000
+
+/*
+ * The size of the clock loop.
+ */
+#define	LOOPPAGES	(maxfree - firstfree)
+
+/*
+ * The time for a process to be blocked before being very swappable.
+ * This is a number of seconds which the system takes as being a non-trivial
+ * amount of real time.  You probably shouldn't change this;
+ * it is used in subtle ways (fractions and multiples of it are, that is, like
+ * half of a ``long time'', almost a long time, etc.)
+ * It is related to human patience and other factors which don't really
+ * change over time.
+ */
+#define	MAXSLP 		20
+
+/*
+ * A swapped in process is given a small amount of core without being bothered
+ * by the page replacement algorithm.  Basically this says that if you are
+ * swapped in you deserve some resources.  We protect the last SAFERSS
+ * pages against paging and will just swap you out rather than paging you.
+ * Note that each process has at least UPAGES+CLSIZE pages which are not
+ * paged anyways (this is currently 8+2=10 pages or 5k bytes), so this
+ * number just means a swapped in process is given around 25k bytes.
+ * Just for fun: current memory prices are 4600$ a megabyte on VAX (4/22/81),
+ * so we loan each swapped in process memory worth 100$, or just admit
+ * that we don't consider it worthwhile and swap it out to disk which costs
+ * $30/mb or about $0.75.
+ */
+#define	SAFERSS		4		/* nominal ``small'' resident set size
+					   protected against replacement */
+
+/*
+ * DISKRPM is used to estimate the number of paging i/o operations
+ * which one can expect from a single disk controller.
+ */
+#define	DISKRPM		60
+
+/*
+ * Klustering constants.  Klustering is the gathering
+ * of pages together for pagein/pageout, while clustering
+ * is the treatment of hardware page size as though it were
+ * larger than it really is.
+ *
+ * KLMAX gives maximum cluster size in CLSIZE page (cluster-page)
+ * units.  Note that ctod(KLMAX*CLSIZE) must be <= DMMIN in dmap.h.
+ * ctob(KLMAX) should also be less than MAXPHYS (in vm_swp.c)
+ * unless you like "big push" panics.
+ */
+
+#ifdef notdef /* XXX */
+#define	KLMAX	(4/CLSIZE)
+#define	KLSEQL	(2/CLSIZE)		/* in klust if vadvise(VA_SEQL) */
+#define	KLIN	(4/CLSIZE)		/* default data/stack in klust */
+#define	KLTXT	(4/CLSIZE)		/* default text in klust */
+#define	KLOUT	(4/CLSIZE)
+#else
+#define	KLMAX	(1/CLSIZE)
+#define	KLSEQL	(1/CLSIZE)
+#define	KLIN	(1/CLSIZE)
+#define	KLTXT	(1/CLSIZE)
+#define	KLOUT	(1/CLSIZE)
+#endif
+
+/*
+ * KLSDIST is the advance or retard of the fifo reclaim for sequential
+ * processes data space.
+ */
+#define	KLSDIST	3		/* klusters advance/retard for seq. fifo */
+
+/*
+ * Paging thresholds (see vm_sched.c).
+ * Strategy of 1/19/85:
+ *	lotsfree is 512k bytes, but at most 1/4 of memory
+ *	desfree is 200k bytes, but at most 1/8 of memory
+ */
+#define	LOTSFREE	(512 * 1024)
+#define	LOTSFREEFRACT	4
+#define	DESFREE		(200 * 1024)
+#define	DESFREEFRACT	8
+
+/*
+ * There are two clock hands, initially separated by HANDSPREAD bytes
+ * (but at most all of user memory).  The amount of time to reclaim
+ * a page once the pageout process examines it increases with this
+ * distance and decreases as the scan rate rises.
+ */
+#define	HANDSPREAD	(2 * 1024 * 1024)
+
+/*
+ * The number of times per second to recompute the desired paging rate
+ * and poke the pagedaemon.
+ */
+#define	RATETOSCHEDPAGING	4
+
+/*
+ * Believed threshold (in megabytes) for which interleaved
+ * swapping area is desirable.
+ */
+#define	LOTSOFMEM	2
+
+/*
+ * Mach derived constants
+ */
+
+/* user/kernel map constants */
+#define VM_MIN_ADDRESS		((vm_offset_t)0x00000000)
+#define VM_MAXUSER_ADDRESS	((vm_offset_t)0x80000000)
+#define VM_MAX_ADDRESS		((vm_offset_t)0x80000000)
+#define VM_MIN_KERNEL_ADDRESS	((vm_offset_t)0xC0000000)
+#define VM_MAX_KERNEL_ADDRESS	((vm_offset_t)0xFFFFC000)
+
+#define MACHINE_NONCONTIG	/* VM <=> pmap interface modifier */
+
+/* virtual sizes (bytes) for various kernel submaps */
+#define VM_MBUF_SIZE		(NMBCLUSTERS*MCLBYTES)
+#define VM_KMEM_SIZE		(NKMEMCLUSTERS*CLBYTES)
+#define VM_PHYS_SIZE		(USRIOSIZE*CLBYTES)
+
+struct vm_map;
+
+vm_offset_t  kmem_alloc_upage __P((struct vm_map *, vm_size_t));
+vm_offset_t  vtophys __P((vm_offset_t, vm_size_t));
+