FreeBSD/Linux Kernel Cross Reference
sys/vm/_vm_phys.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2002-2006 Rice University
5 * Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu>
6 * All rights reserved.
7 *
8 * This software was developed for the FreeBSD Project by Alan L. Cox,
9 * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
30 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD$
34 */
35
36 #ifndef __VM_PHYS_H_
37 #define __VM_PHYS_H_
38
39 #include <machine/vmparam.h>
40
41 #ifndef VM_NFREEORDER_MAX
42 #define VM_NFREEORDER_MAX VM_NFREEORDER
43 #endif
44
45 struct vm_page;
46 #ifndef VM_PAGE_HAVE_PGLIST
47 TAILQ_HEAD(pglist, vm_page);
48 #define VM_PAGE_HAVE_PGLIST
49 #endif
50
51 struct vm_freelist {
52 struct pglist pl;
53 int lcnt;
54 };
55
56 struct vm_phys_seg {
57 vm_paddr_t start;
58 vm_paddr_t end;
59 vm_page_t first_page;
60 #if VM_NRESERVLEVEL > 0
61 vm_reserv_t first_reserv;
62 #endif
63 #ifdef __aarch64__
64 void *md_first;
65 #endif
66 int domain;
67 struct vm_freelist (*free_queues)[VM_NFREEPOOL][VM_NFREEORDER_MAX];
68 };
69
70 extern struct vm_phys_seg vm_phys_segs[];
71 extern int vm_phys_nsegs;
72
73 #endif /* !__VM_PHYS_H_ */
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