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/* $OpenBSD: intr.h,v 1.16 2013/05/17 18:26:37 kettenis Exp $ */
/* $NetBSD: intr.h,v 1.8 2001/01/14 23:50:30 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _MACHINE_INTR_H_
#define _MACHINE_INTR_H_
#include <sparc64/sparc64/intreg.h>
#include <sys/evcount.h>
/*
* Interrupt handler chains. Interrupt handlers should return 0 for
* ``not me'' or 1 (``I took care of it''). intr_establish() inserts a
* handler into the list. The handler is called with its (single)
* argument, or with a pointer to a clockframe if ih_arg is NULL.
*/
struct intrhand {
int (*ih_fun)(void *);
void *ih_arg;
short ih_number; /* interrupt number */
/* the H/W provides */
char ih_pil; /* interrupt priority */
char ih_mpsafe;
struct intrhand *ih_next; /* global list */
struct intrhand *ih_pending; /* pending list */
volatile u_int64_t *ih_map; /* interrupt map reg */
volatile u_int64_t *ih_clr; /* clear interrupt reg */
void (*ih_ack)(struct intrhand *);
struct evcount ih_count; /* # of interrupts */
const void *ih_bus; /* parent bus */
char ih_name[32]; /* device name */
};
extern struct intrhand *intrlev[MAXINTNUM];
void intr_establish(int, struct intrhand *);
/* XXX - arbitrary numbers; no interpretation is defined yet */
#define IPL_NONE 0 /* nothing */
#define IPL_SOFTINT 1 /* softint */
#define IPL_SOFTCLOCK 1 /* timeouts */
#define IPL_SOFTNET 1 /* protocol stack */
#define IPL_BIO PIL_BIO /* block I/O */
#define IPL_NET PIL_NET /* network */
#define IPL_SOFTTTY 4 /* delayed terminal handling */
#define IPL_TTY PIL_TTY /* terminal */
#define IPL_VM PIL_VM /* memory allocation */
#define IPL_AUDIO PIL_AUD /* audio */
#define IPL_CLOCK PIL_CLOCK /* clock */
#define IPL_SERIAL PIL_SER /* serial */
#define IPL_SCHED PIL_SCHED /* scheduler */
#define IPL_LOCK PIL_LOCK /* locks */
#define IPL_STATCLOCK PIL_STATCLOCK /* statclock */
#define IPL_HIGH PIL_HIGH /* everything */
#define IPL_MPSAFE 0x100
void *softintr_establish(int, void (*)(void *), void *);
void softintr_disestablish(void *);
void softintr_schedule(void *);
#endif /* _MACHINE_INTR_H_ */
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