1/* $NetBSD: intr.h,v 1.8 2012/02/02 11:13:41 reinoud Exp $ */
2
3/*-
4 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _ARCH_USERMODE_INCLUDE_INTR_H
30#define _ARCH_USERMODE_INCLUDE_INTR_H
31
32#include <machine/intrdefs.h>
33#include <sys/siginfo.h>
34
35/* spl */
36void	splinit(void);
37int	splraise(int);
38void	spllower(int);
39
40#define	spl0()		spllower(IPL_NONE)
41#define splx(x)		spllower(x)
42
43/* traps */
44typedef void (sigfunc_t)(siginfo_t *info, vaddr_t from_userland, vaddr_t pc, vaddr_t va);
45extern void setup_signal_handlers(void);
46extern void  signal_intr_establish(int sig, sigfunc_t f);
47extern void *sigio_intr_establish(int (*)(void *), void *);
48
49/* spl implementation */
50typedef uint8_t ipl_t;
51typedef struct {
52	ipl_t _ipl;
53} ipl_cookie_t;
54
55static inline ipl_cookie_t
56makeiplcookie(ipl_t ipl)
57{
58	return (ipl_cookie_t){._ipl = ipl};
59}
60
61static inline int
62splraiseipl(ipl_cookie_t icookie)
63{
64	return splraise(icookie._ipl);
65}
66
67#include <sys/spl.h>
68
69/* for trap.c */
70
71#endif /* !_ARCH_USERMODE_INCLUDE_INTR_H */
72