fiq.h revision 330897 
1/*	$NetBSD: fiq.h,v 1.1 2001/12/20 01:20:23 thorpej Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 2001 Wasabi Systems, Inc.
7 * All rights reserved.
8 *
9 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *	This product includes software developed for the NetBSD Project by
22 *	Wasabi Systems, Inc.
23 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
24 *    or promote products derived from this software without specific prior
25 *    written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 *
39 * $FreeBSD: stable/11/sys/arm/include/fiq.h 330897 2018-03-14 03:19:51Z eadler $
40 *
41 */
42
43#ifndef _MACHINE_FIQ_H_
44#define	_MACHINE_FIQ_H_
45
46#include <sys/queue.h>
47
48struct fiqregs {
49	u_int	fr_r8;			/* FIQ mode r8 */
50	u_int	fr_r9;			/* FIQ mode r9 */
51	u_int	fr_r10;			/* FIQ mode r10 */
52	u_int	fr_r11;			/* FIQ mode r11 */
53	u_int	fr_r12;			/* FIQ mode r12 */
54	u_int	fr_r13;			/* FIQ mode r13 */
55};
56
57struct fiqhandler {
58	TAILQ_ENTRY(fiqhandler) fh_list;/* link in the FIQ handler stack */
59	void	*fh_func;		/* FIQ handler routine */
60	size_t	fh_size;		/* size of FIQ handler */
61	int	fh_flags;		/* flags; see below */
62	struct fiqregs *fh_regs;	/* pointer to regs structure */
63};
64
65#define	FH_CANPUSH	0x01	/* can push this handler out of the way */
66
67int	fiq_claim(struct fiqhandler *);
68void	fiq_release(struct fiqhandler *);
69
70void	fiq_getregs(struct fiqregs *);
71void	fiq_setregs(struct fiqregs *);
72
73#endif /* _MACHINE_FIQ_H_ */
74