autoconf.c revision 109558 
1/*-
2 * Copyright (c) 1998 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/ia64/ia64/autoconf.c 109558 2003-01-20 11:11:51Z phk $
27 */
28
29#include "opt_bootp.h"
30#include "opt_isa.h"
31#include "opt_nfs.h"
32#include "opt_nfsroot.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/conf.h>
37#include <sys/reboot.h>
38#include <sys/kernel.h>
39#include <sys/mount.h>
40#include <sys/sysctl.h>
41#include <sys/bus.h>
42#include <sys/devicestat.h>
43#include <sys/cons.h>
44
45#include <machine/md_var.h>
46#include <machine/bootinfo.h>
47
48#include <cam/cam.h>
49#include <cam/cam_ccb.h>
50#include <cam/cam_sim.h>
51#include <cam/cam_periph.h>
52#include <cam/cam_xpt_sim.h>
53#include <cam/cam_debug.h>
54
55static void	configure(void *);
56SYSINIT(configure, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL)
57
58#ifdef BOOTP
59void bootpc_init(void);
60#endif
61
62#ifdef DEV_ISA
63#include <isa/isavar.h>
64device_t isa_bus_device = 0;
65#endif
66
67extern int nfs_diskless_valid;		/* XXX use include file */
68
69/*
70 * Determine i/o configuration for a machine.
71 */
72static void
73configure(void *dummy)
74{
75	device_add_child(root_bus, "nexus", 0);
76
77	root_bus_configure();
78
79	/*
80	 * Probe ISA devices after everything.
81	 */
82#ifdef DEV_ISA
83	if (isa_bus_device)
84		isa_probe_children(isa_bus_device);
85#endif
86
87	/*
88	 * Now we're ready to handle (pending) interrupts.
89	 * XXX this is slightly misplaced.
90	 */
91	enable_intr();
92
93	cold = 0;
94}
95
96/*
97 * Do legacy root filesystem discovery.  This isn't really
98 * needed on the Alpha, which has always used the loader.
99 */
100void
101cpu_rootconf()
102{
103#if defined(NFSCLIENT) && defined(NFS_ROOT)
104	int	order = 0;
105#endif
106
107#ifdef BOOTP
108	if (!ia64_running_in_simulator())
109		bootpc_init();
110#endif
111#if defined(NFSCLIENT) && defined(NFS_ROOT)
112#if !defined(BOOTP_NFSROOT)
113	if (nfs_diskless_valid)
114#endif
115		rootdevnames[order++] = "nfs:";
116#endif
117}
118SYSINIT(cpu_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, cpu_rootconf, NULL)
119