autoconf.c revision 84557
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 84557 2001-10-05 19:03:01Z dfr $ 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/disklabel.h> 38#include <sys/diskslice.h> /* for BASE_SLICE, MAX_SLICES */ 39#include <sys/reboot.h> 40#include <sys/kernel.h> 41#include <sys/mount.h> 42#include <sys/sysctl.h> 43#include <sys/bus.h> 44#include <sys/devicestat.h> 45#include <sys/cons.h> 46 47#include <machine/md_var.h> 48#include <machine/bootinfo.h> 49 50#include <cam/cam.h> 51#include <cam/cam_ccb.h> 52#include <cam/cam_sim.h> 53#include <cam/cam_periph.h> 54#include <cam/cam_xpt_sim.h> 55#include <cam/cam_debug.h> 56 57static void configure __P((void *)); 58SYSINIT(configure, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL) 59 60#ifdef DEV_ISA 61#include <isa/isavar.h> 62device_t isa_bus_device = 0; 63#endif 64 65extern int nfs_diskless_valid; /* XXX use include file */ 66 67dev_t rootdev = NODEV; 68dev_t dumpdev = NODEV; 69 70/* 71 * Determine i/o configuration for a machine. 72 */ 73static void 74configure(void *dummy) 75{ 76 device_add_child(root_bus, "nexus", 0); 77 78 root_bus_configure(); 79 80 /* 81 * Probe ISA devices after everything. 82 */ 83#ifdef DEV_ISA 84 if (isa_bus_device) 85 isa_probe_children(isa_bus_device); 86#endif 87 88 cninit_finish(); 89 90 /* 91 * Now we're ready to handle (pending) interrupts. 92 * XXX this is slightly misplaced. 93 */ 94 enable_intr(); 95 96 cold = 0; 97} 98 99/* 100 * Do legacy root filesystem discovery. This isn't really 101 * needed on the Alpha, which has always used the loader. 102 */ 103void 104cpu_rootconf() 105{ 106 int order = 0; 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