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b688fc87 WJ |
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 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 | ||
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 | } |