Return to vm_init.c CVS log

Up to [Net/2] / Net2 / vm

Annotation of Net2/vm/vm_init.c, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Copyright (c) 1991 Regents of the University of California.
                      3:  * 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:  *     @(#)vm_init.c   7.3 (Berkeley) 4/21/91
                     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  [email protected]
                     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: 
                     65: /*
                     66:  *     Initialize the Virtual Memory subsystem.
                     67:  */
                     68: 
                     69: #include "param.h"
                     70: 
                     71: #include "vm.h"
                     72: #include "vm_page.h"
                     73: #include "vm_kern.h"
                     74: 
                     75: /*
                     76:  *     vm_init initializes the virtual memory system.
                     77:  *     This is done only by the first cpu up.
                     78:  *
                     79:  *     The start and end address of physical memory is passed in.
                     80:  */
                     81: 
                     82: void vm_mem_init()
                     83: {
                     84:        extern vm_offset_t      avail_start, avail_end;
                     85:        extern vm_offset_t      virtual_avail, virtual_end;
                     86: 
                     87:        /*
                     88:         *      Initializes resident memory structures.
                     89:         *      From here on, all physical memory is accounted for,
                     90:         *      and we use only virtual addresses.
                     91:         */
                     92: 
                     93:        virtual_avail = vm_page_startup(avail_start, avail_end, virtual_avail);
                     94:        /*
                     95:         * Initialize other VM packages
                     96:         */
                     97:        vm_object_init();
                     98:        vm_map_startup();
                     99:        kmem_init(virtual_avail, virtual_end);
                    100:        pmap_init(avail_start, avail_end);
                    101:        vm_pager_init();
                    102: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.