1 /* $NetBSD: uvm_fault.h,v 1.20 2011/02/02 15:13:34 chuck Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Charles D. Cranor and Washington University. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * from: Id: uvm_fault.h,v 1.1.2.2 1997/12/08 16:07:12 chuck Exp 28 */ 29 30 #ifndef _UVM_UVM_FAULT_H_ 31 #define _UVM_UVM_FAULT_H_ 32 33 /* 34 * fault data structures 35 */ 36 37 /* 38 * uvm_faultinfo: to load one of these fill in all orig_* fields and 39 * then call uvmfault_lookup on it. 40 */ 41 42 43 struct uvm_faultinfo { 44 struct vm_map *orig_map; /* IN: original map */ 45 vaddr_t orig_rvaddr; /* IN: original rounded VA */ 46 vsize_t orig_size; /* IN: original size of interest */ 47 struct vm_map *map; /* map (could be a submap) */ 48 unsigned int mapv; /* map's version number */ 49 struct vm_map_entry *entry; /* map entry (from 'map') */ 50 vsize_t size; /* size of interest */ 51 }; 52 53 #ifdef _KERNEL 54 55 /* 56 * fault prototypes 57 */ 58 59 int uvmfault_anonget(struct uvm_faultinfo *, struct vm_amap *, 60 struct vm_anon *); 61 62 int uvm_fault_wire(struct vm_map *, vaddr_t, vaddr_t, vm_prot_t, int); 63 void uvm_fault_unwire(struct vm_map *, vaddr_t, vaddr_t); 64 void uvm_fault_unwire_locked(struct vm_map *, vaddr_t, vaddr_t); 65 66 #endif /* _KERNEL */ 67 68 #endif /* _UVM_UVM_FAULT_H_ */ 69