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Centralize the declaration and clearing of `cold'.

/*	$NetBSD: autoconf.c,v 1.31 1999/09/17 20:04:46 thorpej Exp $	*/

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * William Jolitz.
 *
 * 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.
 *
 *	@(#)autoconf.c	7.1 (Berkeley) 5/9/91
 */

/*
 * Setup the system to run on the current machine.
 *
 * Configure() is called at boot time and initializes the vba 
 * device tables and the memory controller monitoring.  Available
 * devices are determined (from possibilities mentioned in ioconf.c),
 * and the drivers are initialized.
 */

#include <sys/param.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <sys/systm.h>

/*
 * The following several variables are related to
 * the configuration process, and are used in initializing
 * the machine.
 */

u_long bootdev = 0;		/* should be dev_t, but not until 32 bits */
struct device *booted_device;	/* boot device, set by dk_establish */

/*
 * Determine i/o configuration for a machine.
 */
void
cpu_configure()
{
	extern int safepri;
	int i;
	static const char *ipl_names[] = IPL_NAMES;

	splhigh();
	safepri = splhigh();

	/* Find out what the hardware configuration looks like! */
	if (config_rootfound("mainbus", "mainbus") == NULL)
		panic("No mainbus found!");

	for (i = 0; i < NIPL; i++)
		if (*ipl_names[i])
			printf("%s%s=%x", i?", ":"", ipl_names[i], imask[i]);
	printf("\n");

	safepri = imask[IPL_ZERO];
	spl0();
}

void
cpu_rootconf()
{
	int booted_partition = (bootdev >> B_PARTITIONSHIFT) & B_PARTITIONMASK;

	printf("boot device: %s\n",
	    booted_device ? booted_device->dv_xname : "<unknown>");

	setroot(booted_device, booted_partition);
}