/* $NetBSD: uvm_fault.h,v 1.13 1999/06/21 17:25:11 thorpej 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles D. Cranor and * Washington University. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * 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 types */ #define VM_FAULT_INVALID ((vm_fault_t) 0x0) /* invalid mapping */ #define VM_FAULT_PROTECT ((vm_fault_t) 0x1) /* protection */ #define VM_FAULT_WIRE ((vm_fault_t) 0x2) /* wire mapping */ /* * 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 { vm_map_t orig_map; /* IN: original map */ vaddr_t orig_rvaddr; /* IN: original rounded VA */ vsize_t orig_size; /* IN: original size of interest */ vm_map_t map; /* map (could be a submap) */ unsigned int mapv; /* map's version number */ vm_map_entry_t entry; /* map entry (from 'map') */ vsize_t size; /* size of interest */ }; #ifdef _KERNEL /* * fault prototypes */ int uvmfault_anonget __P((struct uvm_faultinfo *, struct vm_amap *, struct vm_anon *)); static boolean_t uvmfault_check_intrsafe __P((struct uvm_faultinfo *)); static boolean_t uvmfault_lookup __P((struct uvm_faultinfo *, boolean_t)); static boolean_t uvmfault_relock __P((struct uvm_faultinfo *)); static void uvmfault_unlockall __P((struct uvm_faultinfo *, struct vm_amap *, struct uvm_object *, struct vm_anon *)); static void uvmfault_unlockmaps __P((struct uvm_faultinfo *, boolean_t)); int uvm_fault_wire __P((vm_map_t, vaddr_t, vaddr_t, vm_prot_t)); void uvm_fault_unwire __P((vm_map_t, vaddr_t, vaddr_t)); void uvm_fault_unwire_locked __P((vm_map_t, vaddr_t, vaddr_t)); #endif /* _KERNEL */ #endif /* _UVM_UVM_FAULT_H_ */