The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/vm/pmap.h

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    1 /*
    2  * Copyright (c) 1991, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * This code is derived from software contributed to Berkeley by
    6  * The Mach Operating System project at Carnegie-Mellon University.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *      This product includes software developed by the University of
   19  *      California, Berkeley and its contributors.
   20  * 4. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      from: @(#)pmap.h        8.1 (Berkeley) 6/11/93
   37  *
   38  *
   39  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
   40  * All rights reserved.
   41  *
   42  * Author: Avadis Tevanian, Jr.
   43  *
   44  * Permission to use, copy, modify and distribute this software and
   45  * its documentation is hereby granted, provided that both the copyright
   46  * notice and this permission notice appear in all copies of the
   47  * software, derivative works or modified versions, and any portions
   48  * thereof, and that both notices appear in supporting documentation.
   49  *
   50  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   51  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
   52  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   53  *
   54  * Carnegie Mellon requests users of this software to return to
   55  *
   56  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   57  *  School of Computer Science
   58  *  Carnegie Mellon University
   59  *  Pittsburgh PA 15213-3890
   60  *
   61  * any improvements or extensions that they make and grant Carnegie the
   62  * rights to redistribute these changes.
   63  *
   64  * $FreeBSD$
   65  */
   66 
   67 /*
   68  *      Machine address mapping definitions -- machine-independent
   69  *      section.  [For machine-dependent section, see "machine/pmap.h".]
   70  */
   71 
   72 #ifndef _PMAP_VM_
   73 #define _PMAP_VM_
   74 
   75 /*
   76  * Each machine dependent implementation is expected to
   77  * keep certain statistics.  They may do this anyway they
   78  * so choose, but are expected to return the statistics
   79  * in the following structure.
   80  */
   81 struct pmap_statistics {
   82         long resident_count;    /* # of pages mapped (total) */
   83         long wired_count;       /* # of pages wired */
   84 };
   85 typedef struct pmap_statistics *pmap_statistics_t;
   86 
   87 #include <machine/pmap.h>
   88 
   89 #ifdef KERNEL
   90 
   91 struct proc;
   92 
   93 #ifdef __alpha__
   94 void             pmap_page_is_free __P((vm_page_t m));
   95 #endif
   96 void             pmap_change_wiring __P((pmap_t, vm_offset_t, boolean_t));
   97 void             pmap_clear_modify __P((vm_offset_t pa));
   98 void             pmap_clear_reference __P((vm_offset_t pa));
   99 void             pmap_copy __P((pmap_t, pmap_t, vm_offset_t, vm_size_t,
  100                     vm_offset_t));
  101 void             pmap_copy_page __P((vm_offset_t, vm_offset_t));
  102 void             pmap_destroy __P((pmap_t));
  103 void             pmap_enter __P((pmap_t, vm_offset_t, vm_offset_t, vm_prot_t,
  104                     boolean_t));
  105 vm_offset_t      pmap_extract __P((pmap_t, vm_offset_t));
  106 void             pmap_growkernel __P((vm_offset_t));
  107 void             pmap_init __P((vm_offset_t, vm_offset_t));
  108 boolean_t        pmap_is_modified __P((vm_offset_t pa));
  109 boolean_t        pmap_ts_referenced __P((vm_offset_t pa));
  110 void             pmap_kenter __P((vm_offset_t, vm_offset_t));
  111 void             pmap_kremove __P((vm_offset_t));
  112 vm_offset_t      pmap_map __P((vm_offset_t, vm_offset_t, vm_offset_t, int));
  113 void             pmap_object_init_pt __P((pmap_t pmap, vm_offset_t addr,
  114                     vm_object_t object, vm_pindex_t pindex, vm_offset_t size,
  115                     int pagelimit));
  116 boolean_t        pmap_page_exists __P((pmap_t, vm_offset_t));
  117 void             pmap_page_protect __P((vm_offset_t, vm_prot_t));
  118 void             pmap_pageable __P((pmap_t, vm_offset_t, vm_offset_t,
  119                     boolean_t));
  120 vm_offset_t      pmap_phys_address __P((int));
  121 void             pmap_pinit __P((pmap_t));
  122 void             pmap_pinit0 __P((pmap_t));
  123 void             pmap_pinit2 __P((pmap_t));
  124 void             pmap_protect __P((pmap_t, vm_offset_t, vm_offset_t,
  125                     vm_prot_t));
  126 void             pmap_qenter __P((vm_offset_t, vm_page_t *, int));
  127 void             pmap_qremove __P((vm_offset_t, int));
  128 void             pmap_reference __P((pmap_t));
  129 void             pmap_release __P((pmap_t));
  130 void             pmap_remove __P((pmap_t, vm_offset_t, vm_offset_t));
  131 void             pmap_remove_pages __P((pmap_t, vm_offset_t, vm_offset_t));
  132 void             pmap_zero_page __P((vm_offset_t));
  133 void             pmap_prefault __P((pmap_t, vm_offset_t, vm_map_entry_t));
  134 int              pmap_mincore __P((pmap_t pmap, vm_offset_t addr));
  135 void             pmap_new_proc __P((struct proc *p));
  136 void             pmap_dispose_proc __P((struct proc *p));
  137 void             pmap_swapout_proc __P((struct proc *p));
  138 void             pmap_swapin_proc __P((struct proc *p));
  139 void             pmap_activate __P((struct proc *p));
  140 vm_offset_t      pmap_addr_hint __P((vm_object_t obj, vm_offset_t addr, vm_size_t size));
  141 void            pmap_init2 __P((void));
  142 
  143 #endif /* KERNEL */
  144 
  145 #endif /* _PMAP_VM_ */

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