1 /* $NetBSD: autoconf.c,v 1.22 2009/03/15 14:21:48 cegger 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 1.22 2009/03/15 14:21:48 cegger Exp $"); 50 51 #include "opt_multiprocessor.h" 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/buf.h> 56 #include <sys/cpu.h> 57 58 #include <machine/pte.h> 59 #include <machine/cpufunc.h> 60 61 #include "ioapic.h" 62 #include "lapic.h" 63 64 #if NIOAPIC > 0 65 #include <machine/i82093var.h> 66 #endif 67 68 #if NLAPIC > 0 69 #include <machine/i82489var.h> 70 #endif 71 72 #include "bios32.h" 73 #if NBIOS32 > 0 74 #include <machine/bios32.h> 75 /* XXX */ 76 extern void platform_init(void); 77 #endif 78 79 #include <x86/x86/tsc.h> 80 81 /* 82 * Determine i/o configuration for a machine. 83 */ 84 void 85 cpu_configure(void) 86 { 87 88 startrtclock(); 89 90 #if NBIOS32 > 0 91 bios32_init(); 92 platform_init(); 93 #endif 94 95 x86_64_proc0_tss_ldt_init(); 96 97 if (config_rootfound("mainbus", NULL) == NULL) 98 panic("configure: mainbus not configured"); 99 100 #ifdef INTRDEBUG 101 intr_printconfig(); 102 #endif 103 104 #if NIOAPIC > 0 105 ioapic_enable(); 106 #endif 107 108 #ifdef MULTIPROCESSOR 109 cpu_init_idle_lwps(); 110 #endif 111 112 spl0(); 113 lcr8(0); 114 } 115