/* $OpenBSD: vm_init.c,v 1.3 1998/03/01 00:38:06 niklas Exp $ */ /* $NetBSD: vm_init.c,v 1.11 1998/01/09 06:00:50 thorpej Exp $ */ /* * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * The Mach Operating System project at Carnegie-Mellon University. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)vm_init.c 8.1 (Berkeley) 6/11/93 * * * Copyright (c) 1987, 1990 Carnegie-Mellon University. * All rights reserved. * * Authors: Avadis Tevanian, Jr., Michael Wayne Young * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ /* * Initialize the Virtual Memory subsystem. */ #include <sys/param.h> #include <sys/systm.h> #include <vm/vm.h> #include <vm/vm_page.h> #include <vm/vm_kern.h> /* * vm_init initializes the virtual memory system. * This is done only by the first cpu up. * * The start and end address of physical memory is passed in. */ void vm_mem_init() { #if !defined(MACHINE_NONCONTIG) && !defined(MACHINE_NEW_NONCONTIG) extern vm_offset_t avail_start, avail_end; extern vm_offset_t virtual_avail, virtual_end; #else vm_offset_t start, end; #endif /* * Initializes resident memory structures. * From here on, all physical memory is accounted for, * and we use only virtual addresses. */ if (page_shift == 0) { printf("vm_mem_init: WARN: MD code did not set page size\n"); vm_set_page_size(); } #if !defined(MACHINE_NONCONTIG) && !defined(MACHINE_NEW_NONCONTIG) vm_page_startup(&avail_start, &avail_end); #else vm_page_bootstrap(&start, &end); #endif /* * Initialize other VM packages */ #if !defined(MACHINE_NONCONTIG) && !defined(MACHINE_NEW_NONCONTIG) vm_object_init(virtual_end - VM_MIN_KERNEL_ADDRESS); #else vm_object_init(end - VM_MIN_KERNEL_ADDRESS); #endif vm_map_startup(); #if !defined(MACHINE_NONCONTIG) && !defined(MACHINE_NEW_NONCONTIG) kmem_init(virtual_avail, virtual_end); pmap_init(avail_start, avail_end); #else kmem_init(start, end); pmap_init(); #endif vm_pager_init(); }