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Annotation of sys/uvm/uvm_fault.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: uvm_fault.h,v 1.12 2002/03/14 01:27:18 millert Exp $  */
                      2: /*     $NetBSD: uvm_fault.h,v 1.14 2000/06/26 14:21:17 mrg Exp $       */
                      3:
                      4: /*
                      5:  *
                      6:  * Copyright (c) 1997 Charles D. Cranor and Washington University.
                      7:  * All rights reserved.
                      8:  *
                      9:  * Redistribution and use in source and binary forms, with or without
                     10:  * modification, are permitted provided that the following conditions
                     11:  * are met:
                     12:  * 1. Redistributions of source code must retain the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer.
                     14:  * 2. Redistributions in binary form must reproduce the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer in the
                     16:  *    documentation and/or other materials provided with the distribution.
                     17:  * 3. All advertising materials mentioning features or use of this software
                     18:  *    must display the following acknowledgement:
                     19:  *      This product includes software developed by Charles D. Cranor and
                     20:  *      Washington University.
                     21:  * 4. The name of the author may not be used to endorse or promote products
                     22:  *    derived from this software without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     25:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     26:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     27:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     28:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     29:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     30:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     31:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     32:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     33:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     34:  *
                     35:  * from: Id: uvm_fault.h,v 1.1.2.2 1997/12/08 16:07:12 chuck Exp
                     36:  */
                     37:
                     38: #ifndef _UVM_UVM_FAULT_H_
                     39: #define _UVM_UVM_FAULT_H_
                     40:
                     41: /*
                     42:  * fault types
                     43:  */
                     44:
                     45: #define VM_FAULT_INVALID ((vm_fault_t) 0x0)    /* invalid mapping */
                     46: #define VM_FAULT_PROTECT ((vm_fault_t) 0x1)    /* protection */
                     47: #define VM_FAULT_WIRE   ((vm_fault_t) 0x2)     /* wire mapping */
                     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:        vm_map_t 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:        vm_map_t map;                   /* map (could be a submap) */
                     64:        unsigned int mapv;              /* map's version number */
                     65:        vm_map_entry_t 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(struct uvm_faultinfo *, struct vm_amap *,
                     77:                          struct vm_anon *);
                     78:
                     79: int uvm_fault_wire(vm_map_t, vaddr_t, vaddr_t, vm_prot_t);
                     80: void uvm_fault_unwire(vm_map_t, vaddr_t, vaddr_t);
                     81: void uvm_fault_unwire_locked(vm_map_t, vaddr_t, vaddr_t);
                     82:
                     83: #endif /* _KERNEL */
                     84:
                     85: #endif /* _UVM_UVM_FAULT_H_ */