1 /*- 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)vm_extern.h 8.2 (Berkeley) 1/12/94 30 * $FreeBSD: src/sys/vm/vm_extern.h,v 1.46.2.3 2003/01/13 22:51:17 dillon Exp $ 31 */ 32 33 #ifndef _VM_VM_EXTERN_H_ 34 #define _VM_VM_EXTERN_H_ 35 36 #ifndef _SYS_TYPES_H_ 37 #include <sys/types.h> 38 #endif 39 #ifndef _VM_VM_MAP_H_ 40 #include <vm/vm_map.h> 41 #endif 42 #ifndef _VM_VM_KERN_H_ 43 #include <vm/vm_kern.h> 44 #endif 45 #ifndef _MACHINE_TYPES_H_ 46 #include <machine/types.h> 47 #endif 48 49 struct buf; 50 struct proc; 51 struct vmspace; 52 struct vmtotal; 53 struct mount; 54 struct vmspace; 55 struct vnode; 56 57 #ifdef _KERNEL 58 59 extern int vkernel_enable; 60 61 int grow (struct proc *, size_t); 62 int kernacc(c_caddr_t, int, int); 63 vm_offset_t kmem_alloc3 (vm_map_t, vm_size_t, vm_subsys_t id, int flags); 64 vm_offset_t kmem_alloc_nofault (vm_map_t, vm_size_t, vm_subsys_t id, vm_size_t); 65 vm_offset_t kmem_alloc_pageable (vm_map_t, vm_size_t, vm_subsys_t id); 66 vm_offset_t kmem_alloc_wait (vm_map_t, vm_size_t, vm_subsys_t id); 67 vm_offset_t kmem_alloc_attr(vm_map_t map, vm_size_t size, vm_subsys_t id, 68 int flags, vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr); 69 void kmem_free (vm_map_t, vm_offset_t, vm_size_t); 70 void kmem_free_wakeup (vm_map_t, vm_offset_t, vm_size_t); 71 void kmem_init (void); 72 void kmem_suballoc (vm_map_t, vm_map_t, vm_offset_t *, vm_offset_t *, vm_size_t); 73 void munmapfd (struct proc *, int); 74 int swaponvp (struct thread *, struct vnode *, u_quad_t); 75 void swapout_procs (int); 76 int useracc(c_caddr_t, int, int); 77 int vm_fault (vm_map_t, vm_offset_t, vm_prot_t, int); 78 vm_page_t vm_fault_page (vm_map_t, vm_offset_t, vm_prot_t, int, int *, int *); 79 vm_page_t vm_fault_page_quick (vm_offset_t, vm_prot_t, int *, int *); 80 void vm_fault_copy_entry (vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t); 81 void vm_fault_unwire (vm_map_t, vm_map_entry_t); 82 int vm_fault_wire (vm_map_t, vm_map_entry_t, boolean_t, int); 83 void vm_fork (struct proc *, struct proc *, int); 84 int vm_test_nominal (void); 85 void vm_wait_nominal (void); 86 void vm_init_limits(struct proc *); 87 88 int vm_mmap (vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t); 89 int vm_mmap_to_errno(int rv); 90 vm_offset_t kmem_alloc_contig (vm_offset_t, vm_paddr_t, vm_paddr_t, vm_offset_t); 91 void vm_set_page_size (void); 92 struct vmspace *vmspace_alloc (vm_offset_t, vm_offset_t); 93 void vmspace_initrefs (struct vmspace *); 94 int vmspace_getrefs (struct vmspace *); 95 void vmspace_hold (struct vmspace *); 96 void vmspace_drop (struct vmspace *); 97 void vmspace_ref (struct vmspace *); 98 void vmspace_rel (struct vmspace *); 99 void vmspace_relexit (struct vmspace *); 100 void vmspace_exitfree (struct proc *); 101 void *kmem_alloc_swapbacked(kmem_anon_desc_t *kp, vm_size_t size, 102 vm_subsys_t id); 103 void kmem_free_swapbacked(kmem_anon_desc_t *kp); 104 105 struct vmspace *vmspace_fork (struct vmspace *); 106 void vmspace_exec (struct proc *, struct vmspace *); 107 void vmspace_unshare (struct proc *); 108 void vslock (caddr_t, u_int); 109 void vsunlock (caddr_t, u_int); 110 void vm_object_print (/* db_expr_t */ long, boolean_t, /* db_expr_t */ long, 111 char *); 112 113 static __inline 114 vm_offset_t 115 kmem_alloc (vm_map_t map, vm_size_t size, vm_subsys_t id) 116 { 117 return(kmem_alloc3(map, size, id, 0)); 118 } 119 120 static __inline 121 vm_offset_t 122 kmem_alloc_stack (vm_map_t map, vm_size_t size, int kmflags) 123 { 124 return(kmem_alloc3(map, size, VM_SUBSYS_STACK, kmflags|KM_STACK)); 125 } 126 127 #endif /* _KERNEL */ 128 129 #endif /* !_VM_VM_EXTERN_H_ */ 130