minix/sys/uvm/uvm_fault.h

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/* $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_ */