1 /* $NetBSD: intr.h,v 1.9 2012/03/03 21:15:16 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 */
36 void splinit(void);
37 int splraise(int);
38 void spllower(int);
39
40 #define spl0() spllower(IPL_NONE)
41 #define splx(x) spllower(x)
42
43 /* traps */
44 typedef void (sigfunc_t)(siginfo_t *info, vaddr_t from_userland, vaddr_t pc, vaddr_t va);
45 extern void setup_signal_handlers(void);
46 extern void signal_intr_establish(int sig, sigfunc_t f);
47 extern void *sigio_intr_establish(int (*)(void *), void *);
48
49 /* spl implementation */
50 typedef uint8_t ipl_t;
51 typedef struct {
52 ipl_t _ipl;
53 } ipl_cookie_t;
54
55 static inline ipl_cookie_t
makeiplcookie(ipl_t ipl)56 makeiplcookie(ipl_t ipl)
57 {
58 return (ipl_cookie_t){._ipl = ipl};
59 }
60
61 static inline int
splraiseipl(ipl_cookie_t icookie)62 splraiseipl(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