1/* $NetBSD: autoconf.c,v 1.25 2015/11/22 13:41:24 maxv Exp $ */
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)autoconf.c 7.1 (Berkeley) 5/9/91
35 */
36
37/*
38 * Setup the system to run on the current machine.
39 *
40 * Configure() is called at boot time and initializes the vba
41 * device tables and the memory controller monitoring. Available
42 * devices are determined (from possibilities mentioned in ioconf.c),
43 * and the drivers are initialized.
44 *
45 * Lots of this is now in x86/x86/x86_autoconf.c
46 */
47
48#include <sys/cdefs.h>
49__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.25 2015/11/22 13:41:24 maxv Exp $");
50
51#include "opt_multiprocessor.h"
52#include "opt_intrdebug.h"
53
54#include <sys/param.h>
55#include <sys/systm.h>
56#include <sys/buf.h>
57#include <sys/cpu.h>
58#include <sys/device.h>
59
60#include <machine/pte.h>
61#include <machine/cpufunc.h>
62
63#include "ioapic.h"
64#include "lapic.h"
65
66#if NIOAPIC > 0
67#include <machine/i82093var.h>
68#endif
69
70#if NLAPIC > 0
71#include <machine/i82489var.h>
72#endif
73
74#include "bios32.h"
75#if NBIOS32 > 0
76#include <machine/bios32.h>
77/* XXX */
78extern void platform_init(void);
79#endif
80
81#include <x86/x86/tsc.h>
82
83/*
84 * Determine i/o configuration for a machine.
85 */
86void
87cpu_configure(void)
88{
89 startrtclock();
90
91#if NBIOS32 > 0
92 bios32_init();
93 platform_init();
94#endif
95
96 x86_64_proc0_tss_ldt_init();
97
98 if (config_rootfound("mainbus", NULL) == NULL)
99 panic("configure: mainbus not configured");
100
101#ifdef INTRDEBUG
102 intr_printconfig();
103#endif
104
105#if NIOAPIC > 0
106 ioapic_enable();
107#endif
108
109#ifdef MULTIPROCESSOR
110 cpu_init_idle_lwps();
111#endif
112
113 spl0();
114 lcr8(0);
115}
116