1/*	$NetBSD: undefined.h,v 1.4 2001/12/20 01:20:23 thorpej Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 1995-1996 Mark Brinicombe.
7 * Copyright (c) 1995 Brini.
8 * All rights reserved.
9 *
10 * This code is derived from software written for Brini by Mark Brinicombe
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 *    must display the following acknowledgement:
22 *	This product includes software developed by Brini.
23 * 4. The name of the company nor the name of the author may be used to
24 *    endorse or promote products derived from this software without specific
25 *    prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
28 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
29 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
30 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
31 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
32 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
33 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * RiscBSD kernel project
40 *
41 * undefined.h
42 *
43 * Undefined instruction types, symbols and prototypes
44 *
45 * Created      : 08/02/95
46 */
47
48#ifndef _MACHINE_UNDEFINED_H_
49#define _MACHINE_UNDEFINED_H_
50#ifdef _KERNEL
51
52#include <sys/queue.h>
53
54struct trapframe;
55
56typedef int (*undef_handler_t) (unsigned int, unsigned int, struct trapframe *, int);
57
58#define FP_COPROC	1
59#define FP_COPROC2	2
60#define MAX_COPROCS	16
61
62/* Prototypes for undefined.c */
63
64void *install_coproc_handler (int, undef_handler_t);
65void remove_coproc_handler (void *);
66void undefined_init (void);
67
68/*
69 * XXX Stuff below here is for use before malloc() is available.  Most code
70 * shouldn't use it.
71 */
72
73struct undefined_handler {
74	LIST_ENTRY(undefined_handler) uh_link;
75	undef_handler_t uh_handler;
76};
77
78/*
79 * Handlers installed using install_coproc_handler_static shouldn't be
80 * removed.
81 */
82void install_coproc_handler_static (int, struct undefined_handler *);
83
84/* Calls up to undefined.c from trap handlers */
85void undefinedinstruction(struct trapframe *);
86
87#endif
88
89/* End of undefined.h */
90
91#endif /* _MACHINE_UNDEFINED_H_ */
92