103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/* $NetBSD: autoconf.c,v 1.29 1999/06/07 20:16:12 thorpej Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)autoconf.c 7.1 (Berkeley) 5/9/91
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*/
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/*
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* Setup the system to run on the current machine.
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*
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* Configure() is called at boot time and initializes the vba
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* device tables and the memory controller monitoring. Available
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* devices are determined (from possibilities mentioned in ioconf.c),
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* and the drivers are initialized.
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*/
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/reboot.h>
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#include <sys/systm.h>
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/*
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* The following several variables are related to
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* the configuration process, and are used in initializing
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* the machine.
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*/
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extern int cold; /* cold start flag initialized in locore.s */
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u_long bootdev = 0; /* should be dev_t, but not until 32 bits */
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struct device *booted_device; /* boot device, set by dk_establish */
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/*
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* Determine i/o configuration for a machine.
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*/
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void
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configure()
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{
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extern int safepri;
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int i;
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static const char *ipl_names[] = IPL_NAMES;
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splhigh();
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safepri = splhigh();
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/* Find out what the hardware configuration looks like! */
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if (config_rootfound("mainbus", "mainbus") == NULL)
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panic("No mainbus found!");
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for (i = 0; i < NIPL; i++)
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if (*ipl_names[i])
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printf("%s%s=%x", i?", ":"", ipl_names[i], imask[i]);
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printf("\n");
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safepri = imask[IPL_ZERO];
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spl0();
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cold = 0;
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}
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void
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cpu_rootconf()
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{
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int booted_partition = (bootdev >> B_PARTITIONSHIFT) & B_PARTITIONMASK;
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printf("boot device: %s\n",
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booted_device ? booted_device->dv_xname : "<unknown>");
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setroot(booted_device, booted_partition);
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}
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