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_ */