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/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* File: vm/vm_fault.h
*
* Page fault handling module declarations.
*/
#ifndef _VM_VM_FAULT_H_
#define _VM_VM_FAULT_H_
#include <mach/kern_return.h>
#include <mach/vm_prot.h>
#include <vm/vm_map.h>
#include <vm/vm_types.h>
/*
* Page fault handling based on vm_object only.
*/
typedef kern_return_t vm_fault_return_t;
#define VM_FAULT_SUCCESS 0
#define VM_FAULT_RETRY 1
#define VM_FAULT_INTERRUPTED 2
#define VM_FAULT_MEMORY_SHORTAGE 3
#define VM_FAULT_FICTITIOUS_SHORTAGE 4
#define VM_FAULT_MEMORY_ERROR 5
extern void vm_fault_init(void);
extern vm_fault_return_t vm_fault_page(vm_object_t, vm_offset_t, vm_prot_t,
boolean_t, boolean_t, vm_prot_t *,
vm_page_t *, vm_page_t *, boolean_t,
void (*)());
extern void vm_fault_cleanup(vm_object_t, vm_page_t);
/*
* Page fault handling based on vm_map (or entries therein)
*/
extern kern_return_t vm_fault(vm_map_t, vm_offset_t, vm_prot_t, boolean_t,
boolean_t, void (*)());
extern void vm_fault_wire(vm_map_t, vm_map_entry_t);
extern void vm_fault_unwire(vm_map_t, vm_map_entry_t);
/* Copy pages from one object to another. */
extern kern_return_t vm_fault_copy(vm_object_t, vm_offset_t, vm_size_t *,
vm_object_t, vm_offset_t, vm_map_t,
vm_map_version_t *, boolean_t);
kern_return_t vm_fault_wire_fast(
vm_map_t map,
vm_offset_t va,
vm_map_entry_t entry);
#endif /* _VM_VM_FAULT_H_ */
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