/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University * All Rights Reserved. * * 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 Mellon * the rights to redistribute these changes. */ /* */ /* * File: vm/vm_init.c * Author: Avadis Tevanian, Jr., Michael Wayne Young * Date: 1985 * * Initialize the Virtual Memory subsystem. */ #include <mach/machine/vm_types.h> #include <kern/zalloc.h> #include <kern/kalloc.h> #include <vm/vm_object.h> #include <vm/vm_map.h> #include <vm/vm_page.h> #include <vm/vm_kern.h> #include <vm/memory_object.h> #include <vm/vm_fault.h> #include <vm/vm_init.h> #define ZONE_MAP_MIN (12 * 1024 * 1024) #define ZONE_MAP_MAX (128 * 1024 * 1024) /* * vm_mem_bootstrap initializes the virtual memory system. * This is done only by the first cpu up. */ void vm_mem_bootstrap(void) { vm_offset_t start, end; vm_size_t zsize; /* * Initializes resident memory structures. * From here on, all physical memory is accounted for, * and we use only virtual addresses. */ vm_page_bootstrap(&start, &end); /* * Initialize other VM packages */ zone_bootstrap(); vm_object_bootstrap(); vm_map_init(); kmem_init(start, end); pmap_init(); zsize = mem_size >> 2; /* Get target zone size as 1/4 of physical memory */ if(zsize < ZONE_MAP_MIN) zsize = ZONE_MAP_MIN; /* Clamp to min */ if(zsize > ZONE_MAP_MAX) zsize = ZONE_MAP_MAX; /* Clamp to max */ zone_init(zsize); /* Allocate address space for zones */ kalloc_init(); vm_fault_init(); vm_page_module_init(); memory_manager_default_init(); memory_object_control_bootstrap(); device_pager_bootstrap(); } void vm_mem_init(void) { vm_object_init(); }