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interrupt.h
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interrupt.h
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/*-
* Copyright (c) 1993 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: src/sys/sys/interrupt.h,v 1.9.2.1 2001/10/14 20:05:50 luigi Exp $
* $FreeBSD: src/sys/i386/include/ipl.h,v 1.17.2.3 2002/12/17 18:04:02 sam Exp $
* $DragonFly: src/sys/sys/interrupt.h,v 1.19 2008/05/14 11:59:24 sephe Exp $
*/
#ifndef _SYS_INTERRUPT_H_
#define _SYS_INTERRUPT_H_
/*
* System hard and soft interrupt limits. Note that the architecture may
* further limit available hardware and software interrupts.
*/
#define MAX_HARDINTS 192
#define MAX_SOFTINTS 64
#define FIRST_SOFTINT MAX_HARDINTS
#define MAX_INTS (MAX_HARDINTS + MAX_SOFTINTS)
typedef void inthand2_t (void *, void *);
/*
* Software interrupt bit numbers in priority order. The priority only
* determines which swi will be dispatched next; a higher priority swi
* may be dispatched when a nested h/w interrupt handler returns.
*/
#define SWI_TTY (FIRST_SOFTINT + 0)
#define SWI_UNUSED01 (FIRST_SOFTINT + 1)
#define SWI_CAMNET (FIRST_SOFTINT + 2)
#define SWI_CRYPTO SWI_CAMNET
#define SWI_CAMBIO (FIRST_SOFTINT + 3)
#define SWI_VM (FIRST_SOFTINT + 4)
#define SWI_TQ (FIRST_SOFTINT + 5)
#define SWI_UNUSED02 (FIRST_SOFTINT + 6)
/*
* Corresponding interrupt-pending bits for spending. NOTE: i386 only
* supports 32 software interupts (due to its gd_spending mask).
*/
#define SWI_TTY_PENDING (1 << (SWI_TTY - FIRST_SOFTINT))
#define SWI_UNUSED01_PENDING (1 << (SWI_UNUSED01 - FIRST_SOFTINT))
#define SWI_CAMNET_PENDING (1 << (SWI_CAMNET - FIRST_SOFTINT))
#define SWI_CRYPTO_PENDING SWI_CAMNET_PENDING
#define SWI_CAMBIO_PENDING (1 << (SWI_CAMBIO - FIRST_SOFTINT))
#define SWI_VM_PENDING (1 << (SWI_VM - FIRST_SOFTINT))
#define SWI_TQ_PENDING (1 << (SWI_TQ - FIRST_SOFTINT))
#define SWI_UNUSED02_PENDING (1 << (SWI_UNUSED02 - FIRST_SOFTINT))
#ifdef _KERNEL
struct intrframe;
struct thread;
struct lwkt_serialize;
void *register_swi(int intr, inthand2_t *handler, void *arg,
const char *name,
struct lwkt_serialize *serializer, int cpuid);
void *register_swi_mp(int intr, inthand2_t *handler, void *arg,
const char *name,
struct lwkt_serialize *serializer, int cpuid);
void *register_int(int intr, inthand2_t *handler, void *arg,
const char *name,
struct lwkt_serialize *serializer, int flags,
int cpuid);
long get_interrupt_counter(int intr, int cpuid);
void unregister_swi(void *id, int intr, int cpuid);
void unregister_int(void *id, int cpuid);
void register_randintr(int intr);
void unregister_randintr(int intr);
int next_registered_randintr(int intr);
void sched_ithd_soft(int intr); /* procedure called from MD */
void sched_ithd_hard(int intr); /* procedure called from MD */
#ifdef _KERNEL_VIRTUAL
void *register_int_virtual(int intr, inthand2_t *handler, void *arg,
const char *name, struct lwkt_serialize *serializer, int flags);
void unregister_int_virtual(void *id);
void sched_ithd_hard_virtual(int intr);
#endif
extern char eintrnames[]; /* end of intrnames[] */
extern char intrnames[]; /* string table containing device names */
#endif
#endif