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 vnode; 55 56 #ifdef _KERNEL 57 58 extern int vkernel_enable; 59 60 int grow(struct proc *, size_t); 61 int kernacc(c_caddr_t, int, int); 62 vm_offset_t kmem_alloc3(struct vm_map *, vm_size_t, 63 vm_subsys_t id, int flags); 64 vm_offset_t kmem_alloc_nofault(struct vm_map *, vm_size_t, 65 vm_subsys_t id, vm_size_t); 66 vm_offset_t kmem_alloc_pageable(struct vm_map *, vm_size_t, 67 vm_subsys_t id); 68 vm_offset_t kmem_alloc_wait(struct vm_map *, vm_size_t, 69 vm_subsys_t id); 70 vm_offset_t kmem_alloc_attr(struct vm_map *map, vm_size_t size, 71 vm_subsys_t id, int flags, 72 vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr); 73 void kmem_free(struct vm_map *, vm_offset_t, vm_size_t); 74 void kmem_free_wakeup(struct vm_map *, vm_offset_t, vm_size_t); 75 void kmem_init(void); 76 void kmem_suballoc(struct vm_map *, struct vm_map *, 77 vm_offset_t *, vm_offset_t *, vm_size_t); 78 void munmapfd(struct proc *, int); 79 int swaponvp(struct thread *, struct vnode *, u_quad_t); 80 int useracc(c_caddr_t, int, int); 81 int vm_fault(struct vm_map *, vm_offset_t, vm_prot_t, int); 82 int vm_fault_collapse(struct vm_map *, struct vm_map_entry *); 83 vm_page_t vm_fault_page(struct vm_map *, vm_offset_t, 84 vm_prot_t, int, int *, int *); 85 vm_page_t vm_fault_page_quick(vm_offset_t, vm_prot_t, int *, int *); 86 void vm_fault_copy_entry(struct vm_map *, struct vm_map *, 87 struct vm_map_entry *, struct vm_map_entry *); 88 void vm_fault_unwire(struct vm_map *, struct vm_map_entry *); 89 int vm_fault_wire(struct vm_map *, struct vm_map_entry *, boolean_t, int); 90 void vm_fork(struct proc *, struct proc *, struct lwp *, int); 91 int vm_test_nominal(void); 92 void vm_wait_nominal(void); 93 void vm_init_limits(struct proc *); 94 95 int vm_mmap(struct vm_map *, vm_offset_t *, vm_size_t, 96 vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t, 97 struct file *fp); 98 int vm_mmap_to_errno(int rv); 99 vm_offset_t kmem_alloc_contig(vm_offset_t, vm_paddr_t, 100 vm_paddr_t, vm_offset_t); 101 void vm_set_page_size(void); 102 struct vmspace *vmspace_alloc(vm_offset_t, vm_offset_t); 103 void vmspace_initrefs(struct vmspace *); 104 int vmspace_getrefs(struct vmspace *); 105 void vmspace_hold(struct vmspace *); 106 void vmspace_drop(struct vmspace *); 107 void vmspace_ref(struct vmspace *); 108 void vmspace_rel(struct vmspace *); 109 void vmspace_relexit(struct vmspace *); 110 void vmspace_exitfree(struct proc *); 111 void *kmem_alloc_swapbacked(kmem_anon_desc_t *kp, vm_size_t size, 112 vm_subsys_t id); 113 void kmem_free_swapbacked(kmem_anon_desc_t *kp); 114 115 struct vmspace *vmspace_fork(struct vmspace *origvm, 116 struct proc *p2, struct lwp *lp2); 117 void vmspace_exec(struct proc *, struct vmspace *); 118 void vmspace_unshare(struct proc *); 119 void vslock(caddr_t, u_int); 120 void vsunlock(caddr_t, u_int); 121 void vm_object_print(/* db_expr_t */ long, boolean_t, 122 /* db_expr_t */ long, char *); 123 124 static __inline 125 vm_offset_t 126 kmem_alloc(struct vm_map *map, vm_size_t size, vm_subsys_t id) 127 { 128 return(kmem_alloc3(map, size, id, 0)); 129 } 130 131 static __inline 132 vm_offset_t 133 kmem_alloc_stack(struct vm_map *map, vm_size_t size, int kmflags) 134 { 135 return(kmem_alloc3(map, size, VM_SUBSYS_STACK, kmflags|KM_STACK)); 136 } 137 138 #endif /* _KERNEL */ 139 140 #endif /* !_VM_VM_EXTERN_H_ */ 141