kernel - Implement CPU localization hinting for low level page allocations
[dragonfly.git] / sys / vm / vm_kern.h
CommitLineData
984263bc
MD
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.
2c64e990 16 * 3. Neither the name of the University nor the names of its contributors
984263bc
MD
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)vm_kern.h 8.1 (Berkeley) 6/11/93
33 *
34 *
35 * Copyright (c) 1987, 1990 Carnegie-Mellon University.
36 * All rights reserved.
37 *
38 * Authors: Avadis Tevanian, Jr., Michael Wayne Young
39 *
40 * Permission to use, copy, modify and distribute this software and
41 * its documentation is hereby granted, provided that both the copyright
42 * notice and this permission notice appear in all copies of the
43 * software, derivative works or modified versions, and any portions
44 * thereof, and that both notices appear in supporting documentation.
45 *
46 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
47 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
48 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
49 *
50 * Carnegie Mellon requests users of this software to return to
51 *
52 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
53 * School of Computer Science
54 * Carnegie Mellon University
55 * Pittsburgh PA 15213-3890
56 *
57 * any improvements or extensions that they make and grant Carnegie the
58 * rights to redistribute these changes.
59 *
60 * $FreeBSD: src/sys/vm/vm_kern.h,v 1.22 2000/02/16 21:11:31 dillon Exp $
18b3f457 61 * $DragonFly: src/sys/vm/vm_kern.h,v 1.12 2007/06/07 23:14:29 dillon Exp $
984263bc
MD
62 */
63
64#ifndef _VM_VM_KERN_H_
1bd40720
MD
65#define _VM_VM_KERN_H_
66
67#ifndef _SYS_TYPES_H_
68#include <sys/types.h>
69#endif
70#ifndef _VM_VM_MAP_H_
71#include <vm/vm_map.h>
72#endif
984263bc 73
8ec5b2c9
MD
74struct vm_object;
75
76/*
77 * Anonymous swap-backed kernel memory descriptor
78 */
79struct kmem_anon_desc {
80 vm_map_t map;
81 vm_size_t size;
82 vm_offset_t data;
83 struct vm_object *object;
84};
85
86typedef struct kmem_anon_desc kmem_anon_desc_t;
87
e1359933
MD
88/*
89 * kmem_alloc3() flags
90 */
070a58b3
MD
91#define KM_PAGEABLE 0x00000001
92#define KM_KRESERVE 0x00000002
93#define KM_STACK 0x00000004
94#define KM_NOTLBSYNC 0x00000008
95#define KM_CPU_SPEC 0x00000010
96
97#define KM_CPU_SHIFT 16
98#define KM_CPU(n) (((n) << KM_CPU_SHIFT) | KM_CPU_SPEC)
99#define KM_GETCPU(flags) ((flags) >> KM_CPU_SHIFT)
e1359933 100
984263bc 101/* Kernel memory management definitions. */
e4846942
MD
102extern struct vm_map buffer_map;
103extern struct vm_map kernel_map;
104extern struct vm_map clean_map;
984263bc
MD
105extern u_int vm_kmem_size;
106
107extern vm_offset_t kernel_vm_end;
108/* XXX - elsewhere? */
109struct malloc_type;
6ef943a3
MD
110extern void *contigmalloc_map(u_long, struct malloc_type *, int,
111 vm_paddr_t, vm_paddr_t, u_long, u_long, vm_map_t);
984263bc
MD
112
113#endif /* _VM_VM_KERN_H_ */