/*      $NetBSD: uvm_fault.h,v 1.20 2011/02/02 15:13:34 chuck Exp $     */

/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* from: Id: uvm_fault.h,v 1.1.2.2 1997/12/08 16:07:12 chuck Exp
*/

#ifndef _UVM_UVM_FAULT_H_
#define _UVM_UVM_FAULT_H_

/*
* fault data structures
*/

/*
* uvm_faultinfo: to load one of these fill in all orig_* fields and
* then call uvmfault_lookup on it.
*/


struct uvm_faultinfo {
       struct vm_map *orig_map;                /* IN: original map */
       vaddr_t orig_rvaddr;            /* IN: original rounded VA */
       vsize_t orig_size;              /* IN: original size of interest */
       struct vm_map *map;                     /* map (could be a submap) */
       unsigned int mapv;              /* map's version number */
       struct vm_map_entry *entry;             /* map entry (from 'map') */
       vsize_t size;                   /* size of interest */
};

#ifdef _KERNEL

/*
* fault prototypes
*/

int uvmfault_anonget(struct uvm_faultinfo *, struct vm_amap *,
                    struct vm_anon *);

int uvm_fault_wire(struct vm_map *, vaddr_t, vaddr_t, vm_prot_t, int);
void uvm_fault_unwire(struct vm_map *, vaddr_t, vaddr_t);
void uvm_fault_unwire_locked(struct vm_map *, vaddr_t, vaddr_t);

#endif /* _KERNEL */

#endif /* _UVM_UVM_FAULT_H_ */