1 /* $NetBSD: uvm_fault.h,v 1.16 2001/12/31 22:34:39 chs Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1997 Charles D. Cranor and Washington University. 6 * All rights reserved. 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. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles D. Cranor and 19 * Washington University. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * from: Id: uvm_fault.h,v 1.1.2.2 1997/12/08 16:07:12 chuck Exp 35 */ 36 37 #ifndef _UVM_UVM_FAULT_H_ 38 #define _UVM_UVM_FAULT_H_ 39 40 /* 41 * fault types 42 */ 43 44 #define VM_FAULT_INVALID ((vm_fault_t) 0x0) /* invalid mapping */ 45 #define VM_FAULT_PROTECT ((vm_fault_t) 0x1) /* protection */ 46 #define VM_FAULT_WIRE ((vm_fault_t) 0x2) /* wire mapping */ 47 #define VM_FAULT_WIREMAX ((vm_fault_t) 0x3) /* wire, allow maxprot */ 48 49 /* 50 * fault data structures 51 */ 52 53 /* 54 * uvm_faultinfo: to load one of these fill in all orig_* fields and 55 * then call uvmfault_lookup on it. 56 */ 57 58 59 struct uvm_faultinfo { 60 struct vm_map *orig_map; /* IN: original map */ 61 vaddr_t orig_rvaddr; /* IN: original rounded VA */ 62 vsize_t orig_size; /* IN: original size of interest */ 63 struct vm_map *map; /* map (could be a submap) */ 64 unsigned int mapv; /* map's version number */ 65 struct vm_map_entry *entry; /* map entry (from 'map') */ 66 vsize_t size; /* size of interest */ 67 }; 68 69 #ifdef _KERNEL 70 71 /* 72 * fault prototypes 73 */ 74 75 76 int uvmfault_anonget __P((struct uvm_faultinfo *, struct vm_amap *, 77 struct vm_anon *)); 78 79 int uvm_fault_wire __P((struct vm_map *, vaddr_t, vaddr_t, vm_fault_t, 80 vm_prot_t)); 81 void uvm_fault_unwire __P((struct vm_map *, vaddr_t, vaddr_t)); 82 void uvm_fault_unwire_locked __P((struct vm_map *, vaddr_t, vaddr_t)); 83 84 #endif /* _KERNEL */ 85 86 #endif /* _UVM_UVM_FAULT_H_ */ 87