sys/vm/vm_init.c

   1 /*
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * The Mach Operating System project at Carnegie-Mellon University.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      from: @(#)vm_init.c     8.1 (Berkeley) 6/11/93
  37  *
  38  *
  39  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
  40  * All rights reserved.
  41  *
  42  * Authors: Avadis Tevanian, Jr., Michael Wayne Young
  43  *
  44  * Permission to use, copy, modify and distribute this software and
  45  * its documentation is hereby granted, provided that both the copyright
  46  * notice and this permission notice appear in all copies of the
  47  * software, derivative works or modified versions, and any portions
  48  * thereof, and that both notices appear in supporting documentation.
  49  *
  50  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  51  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  52  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  53  *
  54  * Carnegie Mellon requests users of this software to return to
  55  *
  56  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  57  *  School of Computer Science
  58  *  Carnegie Mellon University
  59  *  Pittsburgh PA 15213-3890
  60  *
  61  * any improvements or extensions that they make and grant Carnegie the
  62  * rights to redistribute these changes.
  63  *
  64  * $FreeBSD: src/sys/vm/vm_init.c,v 1.20 1999/10/29 18:09:29 phk Exp $
  65  * $DragonFly: src/sys/vm/vm_init.c,v 1.11 2007/04/30 07:18:57 dillon Exp $
  66  */
  67
  68 /*
  69  *      Initialize the Virtual Memory subsystem.
  70  */
  71
  72 #include <sys/param.h>
  73 #include <sys/kernel.h>
  74 #include <sys/systm.h>
  75
  76 #include <vm/vm.h>
  77 #include <sys/lock.h>
  78 #include <vm/vm_object.h>
  79 #include <vm/vm_page.h>
  80 #include <vm/vm_map.h>
  81 #include <vm/vm_pager.h>
  82 #include <vm/vm_extern.h>
  83
  84 /*
  85  * Initialize the VM system
  86  */
  87 static void vm_mem_init (void *);
  88 SYSINIT(vm_mem, SI_BOOT1_VM, SI_ORDER_FIRST, vm_mem_init, NULL)
  89
  90 /*
  91  *      vm_init initializes the virtual memory system.
  92  *      This is done only by the first cpu up.
  93  */
  94
  95 /* ARGSUSED*/
  96 static void
  97 vm_mem_init(void *dummy)
  98 {
  99         /*
 100          * Initializes resident memory structures. From here on, all physical
 101          * memory is accounted for, and we use only virtual addresses.
 102          */
 103
 104         vm_set_page_size();
 105         virtual_start = vm_page_startup(virtual_start);
 106         /*
 107          * Initialize other VM packages
 108          */
 109         vm_object_init();
 110         vm_map_startup();
 111         kmem_init(virtual_start, virtual_end);
 112         pmap_init();
 113         vm_pager_init();
 114 }