1/* $NetBSD: intr.h,v 1.21 2020/05/17 14:11:30 ad Exp $ */
2
3/*-
4 * Copyright (c) 2007, 2020 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _SYS_INTR_H_
33#define _SYS_INTR_H_
34
35#define INTRIDBUF 64
36#define INTRDEVNAMEBUF 256
37
38#ifdef _KERNEL
39
40#include <sys/types.h>
41
42struct cpu_info;
43
44/* Public interface. */
45void *softint_establish(u_int, void (*)(void *), void *);
46void softint_disestablish(void *);
47void softint_schedule(void *);
48void softint_schedule_cpu(void *, struct cpu_info *);
49
50/* MI hooks. */
51void softint_init(struct cpu_info *);
52lwp_t *softint_picklwp(void);
53void softint_block(lwp_t *);
54
55/* MD-MI interface. */
56void softint_init_md(lwp_t *, u_int, uintptr_t *);
57#ifndef __HAVE_MD_SOFTINT_TRIGGER
58void softint_trigger(uintptr_t);
59#endif
60void softint_dispatch(lwp_t *, int);
61
62/* Flags for softint_establish(). */
63#define SOFTINT_BIO 0x0000
64#define SOFTINT_CLOCK 0x0001
65#define SOFTINT_SERIAL 0x0002
66#define SOFTINT_NET 0x0003
67#define SOFTINT_MPSAFE 0x0100
68#define SOFTINT_RCPU 0x0200
69
70/* Implementation private flags. */
71#define SOFTINT_PENDING 0x1000
72
73#define SOFTINT_COUNT 0x0004
74#define SOFTINT_LVLMASK 0x00ff
75#define SOFTINT_IMPMASK 0xf000
76
77extern u_int softint_timing;
78
79/*
80 * Historical aliases.
81 */
82#define IPL_BIO IPL_VM
83#define IPL_NET IPL_VM
84#define IPL_TTY IPL_VM
85#define IPL_AUDIO IPL_SCHED
86#define IPL_CLOCK IPL_SCHED
87#define IPL_SERIAL IPL_HIGH
88
89#define splbio() splvm()
90#define splnet() splvm()
91#define spltty() splvm()
92#define splaudio() splsched()
93#define splclock() splsched()
94#define splserial() splhigh()
95
96#include <machine/intr.h>
97
98#elif defined(_KMEMUSER)
99#define SOFTINT_COUNT 0x0004
100#endif /* _KERNEL */
101
102#endif /* _SYS_INTR_H_ */