/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)sys_machdep.c	7.7 (Berkeley) 05/07/91
 */

#include "sys/param.h"
#include "sys/systm.h"
#include "sys/ioctl.h"
#include "sys/file.h"
#include "sys/time.h"
#include "sys/proc.h"
#include "sys/uio.h"
#include "sys/kernel.h"
#include "sys/mtio.h"
#include "sys/buf.h"
#include "sys/trace.h"

#ifdef TRACE
int	nvualarm;

vtrace(p, uap, retval)
	struct proc *p;
	register struct args {
		int	request;
		int	value;
	} *uap;
	int *retval;
{
	int vdoualarm();

	switch (uap->request) {

	case VTR_DISABLE:		/* disable a trace point */
	case VTR_ENABLE:		/* enable a trace point */
		if (uap->value < 0 || uap->value >= TR_NFLAGS)
			return (EINVAL);
		*retval = traceflags[uap->value];
		traceflags[uap->value] = uap->request;
		break;

	case VTR_VALUE:		/* return a trace point setting */
		if (uap->value < 0 || uap->value >= TR_NFLAGS)
			return (EINVAL);
		*retval = traceflags[uap->value];
		break;

	case VTR_UALARM:	/* set a real-time ualarm, less than 1 min */
		if (uap->value <= 0 || uap->value > 60 * hz || nvualarm > 5)
			return (EINVAL);
		nvualarm++;
		timeout(vdoualarm, (caddr_t)p->p_pid, uap->value);
		break;

	case VTR_STAMP:
		trace(TR_STAMP, uap->value, p->p_pid);
		break;
	}
	return (0);
}

vdoualarm(arg)
	int arg;
{
	register struct proc *p;

	p = pfind(arg);
	if (p)
		psignal(p, 16);
	nvualarm--;
}
#endif

#include "../include/cpu.h"

/* XXX should be in an include file somewhere */
#define CC_PURGE	1
#define CC_FLUSH	2
#define CC_IPURGE	4
#define CC_EXTPURGE	0x80000000
/* XXX end should be */

/*ARGSUSED1*/
cachectl(req, addr, len)
	int req;
	caddr_t	addr;
	int len;
{
	int error = 0;

	switch (req) {
	case CC_EXTPURGE|CC_PURGE:
	case CC_EXTPURGE|CC_FLUSH:
#if defined(HP370)
		if (ectype == EC_PHYS)
			PCIA();
		/* fall into... */
#endif
	case CC_PURGE:
	case CC_FLUSH:
		DCIU();
		break;
	case CC_EXTPURGE|CC_IPURGE:
#if defined(HP370)
		if (ectype == EC_PHYS)
			PCIA();
		else
#endif
		DCIU();
		/* fall into... */
	case CC_IPURGE:
		ICIA();
		break;
	default:
		error = EINVAL;
		break;
	}
	return(error);
}