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Annotation of sys/uvm/uvm_fault.h, Revision 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_ */