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/* $FreeBSD$ */
/* $NetBSD: interrupt.c,v 1.23 1998/02/24 07:38:01 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Authors: Keith Bostic, Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center.
* Redistribute and modify at will, leaving only this additional copyright
* notice.
*/
#include "opt_ddb.h"
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
/* __KERNEL_RCSID(0, "$NetBSD: interrupt.c,v 1.23 1998/02/24 07:38:01 thorpej Exp $");*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/vmmeter.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/ktr.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/clock.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include <machine/intr.h>
#ifdef EVCNT_COUNTERS
struct evcnt clock_intr_evcnt; /* event counter for clock intrs. */
#else
#include <sys/interrupt.h>
#include <machine/intrcnt.h>
#endif
#ifdef DDB
#include <ddb/ddb.h>
#endif
volatile int mc_expected, mc_received;
static void
dummy_perf(unsigned long vector, struct trapframe *framep)
{
printf("performance interrupt!\n");
}
void (*perf_irq)(unsigned long, struct trapframe *) = dummy_perf;
static u_int schedclk2;
void
interrupt(u_int64_t vector, struct trapframe *framep)
{
struct thread *td;
td = curthread;
atomic_add_int(&td->td_intr_nesting_level, 1);
switch (vector) {
case 240: /* clock interrupt */
CTR0(KTR_INTR, "clock interrupt");
cnt.v_intr++;
#ifdef EVCNT_COUNTERS
clock_intr_evcnt.ev_count++;
#else
intrcnt[INTRCNT_CLOCK]++;
#endif
handleclock(framep);
/* divide hz (1024) by 8 to get stathz (128) */
if((++schedclk2 & 0x7) == 0)
statclock((struct clockframe *)framep);
break;
default:
mtx_lock(&Giant);
panic("unexpected interrupt: vec %ld\n", vector);
/* NOTREACHED */
}
atomic_subtract_int(&td->td_intr_nesting_level, 1);
}
int
badaddr(addr, size)
void *addr;
size_t size;
{
return(badaddr_read(addr, size, NULL));
}
int
badaddr_read(addr, size, rptr)
void *addr;
size_t size;
void *rptr;
{
return (1); /* XXX implement */
}
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