kernel - simplify vm pager ops, add pre-faulting for zero-fill pages.
[dragonfly.git] / sys / vm / vm_extern.h
blob4729729d7c3c056ff432f821da62f621ecee1b8a
1 /*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
33 * @(#)vm_extern.h 8.2 (Berkeley) 1/12/94
34 * $FreeBSD: src/sys/vm/vm_extern.h,v 1.46.2.3 2003/01/13 22:51:17 dillon Exp $
35 * $DragonFly: src/sys/vm/vm_extern.h,v 1.27 2007/04/30 07:18:57 dillon Exp $
38 #ifndef _VM_VM_EXTERN_H_
39 #define _VM_VM_EXTERN_H_
41 #ifndef _SYS_TYPES_H_
42 #include <sys/types.h>
43 #endif
44 #ifndef _VM_VM_MAP_H_
45 #include <vm/vm_map.h>
46 #endif
47 #ifndef _MACHINE_TYPES_H_
48 #include <machine/types.h>
49 #endif
51 struct buf;
52 struct proc;
53 struct vmspace;
54 struct vmtotal;
55 struct mount;
56 struct vmspace;
57 struct vnode;
59 #ifdef _KERNEL
61 extern int vkernel_enable;
63 #ifdef TYPEDEF_FOR_UAP
64 int getpagesize (struct proc * p, void *, int *);
65 int madvise (struct proc *, void *, int *);
66 int mincore (struct proc *, void *, int *);
67 int mprotect (struct proc *, void *, int *);
68 int msync (struct proc *, void *, int *);
69 int munmap (struct proc *, void *, int *);
70 int obreak (struct proc *, void *, int *);
71 int sbrk (struct proc *, void *, int *);
72 int sstk (struct proc *, void *, int *);
73 int swapon (struct proc *, void *, int *);
74 #endif
76 int grow (struct proc *, size_t);
77 int grow_stack (struct proc *, vm_offset_t);
78 int kernacc(c_caddr_t, int, int);
79 vm_offset_t kmem_alloc3 (vm_map_t, vm_size_t, int flags);
80 vm_offset_t kmem_alloc_nofault (vm_map_t, vm_size_t);
81 vm_offset_t kmem_alloc_pageable (vm_map_t, vm_size_t);
82 vm_offset_t kmem_alloc_wait (vm_map_t, vm_size_t);
83 void kmem_free (vm_map_t, vm_offset_t, vm_size_t);
84 void kmem_free_wakeup (vm_map_t, vm_offset_t, vm_size_t);
85 void kmem_init (vm_offset_t, vm_offset_t);
86 void kmem_suballoc (vm_map_t, vm_map_t, vm_offset_t *, vm_offset_t *, vm_size_t);
87 void munmapfd (struct proc *, int);
88 int swaponvp (struct thread *, struct vnode *, u_quad_t);
89 void swapout_procs (int);
90 int useracc(c_caddr_t, int, int);
91 int vm_fault (vm_map_t, vm_offset_t, vm_prot_t, int);
92 vm_page_t vm_fault_page (vm_map_t, vm_offset_t, vm_prot_t, int, int *);
93 vm_page_t vm_fault_page_quick (vm_offset_t, vm_prot_t, int *);
94 void vm_fault_copy_entry (vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t);
95 void vm_fault_unwire (vm_map_t, vm_map_entry_t);
96 int vm_fault_wire (vm_map_t, vm_map_entry_t, boolean_t);
97 void vm_fork (struct proc *, struct proc *, int);
98 void vm_fault_ratecheck(void);
99 void vm_waitproc (struct proc *);
100 void vm_init_limits(struct proc *);
102 int vm_mmap (vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t);
103 vm_offset_t vm_page_alloc_contig (vm_offset_t, vm_paddr_t, vm_paddr_t, vm_offset_t);
104 void vm_set_page_size (void);
105 struct vmspace *vmspace_alloc (vm_offset_t, vm_offset_t);
106 struct vmspace *vmspace_fork (struct vmspace *);
107 void vmspace_exec (struct proc *, struct vmspace *);
108 void vmspace_unshare (struct proc *);
109 void vmspace_exitfree (struct proc *);
110 void vnode_pager_setsize (struct vnode *, vm_ooffset_t);
111 void vslock (caddr_t, u_int);
112 void vsunlock (caddr_t, u_int);
113 void vm_object_print (/* db_expr_t */ long, boolean_t, /* db_expr_t */ long,
114 char *);
116 static __inline
117 vm_offset_t
118 kmem_alloc (vm_map_t map, vm_size_t size)
120 return(kmem_alloc3(map, size, 0));
123 #endif /* _KERNEL */
125 #endif /* !_VM_VM_EXTERN_H_ */