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: releng/5.0/sys/vm/pmap.h 106838 2002-11-13 05:39:58Z alc $
   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  * Each machine dependent implementation is expected to
   76  * keep certain statistics.  They may do this anyway they
   77  * so choose, but are expected to return the statistics
   78  * in the following structure.
   79  */
   80 struct pmap_statistics {
   81         long resident_count;    /* # of pages mapped (total) */
   82         long wired_count;       /* # of pages wired */
   83 };
   84 typedef struct pmap_statistics *pmap_statistics_t;
   85 
   86 #include <machine/pmap.h>
   87 
   88 #ifdef _KERNEL
   89 struct proc;
   90 struct thread;
   91 
   92 extern  int      pmap_pagedaemon_waken;
   93 
   94 #ifdef __alpha__
   95 void             pmap_page_is_free(vm_page_t m);
   96 #endif
   97 void             pmap_change_wiring(pmap_t, vm_offset_t, boolean_t);
   98 void             pmap_clear_modify(vm_page_t m);
   99 void             pmap_clear_reference(vm_page_t m);
  100 void             pmap_copy(pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t);
  101 void             pmap_copy_page(vm_page_t, vm_page_t);
  102 void             pmap_enter(pmap_t, vm_offset_t, vm_page_t, vm_prot_t,
  103                     boolean_t);
  104 vm_offset_t      pmap_extract(pmap_t pmap, vm_offset_t va);
  105 void             pmap_growkernel(vm_offset_t);
  106 void             pmap_init(vm_offset_t, vm_offset_t);
  107 boolean_t        pmap_is_modified(vm_page_t m);
  108 boolean_t        pmap_ts_referenced(vm_page_t m);
  109 void             pmap_kenter(vm_offset_t va, vm_offset_t pa);
  110 void             pmap_kremove(vm_offset_t);
  111 vm_offset_t      pmap_map(vm_offset_t *, vm_offset_t, vm_offset_t, int);
  112 void             pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
  113                     vm_object_t object, vm_pindex_t pindex, vm_offset_t size,
  114                     int pagelimit);
  115 boolean_t        pmap_page_exists_quick(pmap_t pmap, vm_page_t m);
  116 void             pmap_page_protect(vm_page_t m, vm_prot_t prot);
  117 vm_offset_t      pmap_phys_address(int);
  118 void             pmap_pinit(pmap_t);
  119 void             pmap_pinit0(pmap_t);
  120 void             pmap_pinit2(pmap_t);
  121 void             pmap_protect(pmap_t, vm_offset_t, vm_offset_t, vm_prot_t);
  122 void             pmap_qenter(vm_offset_t, vm_page_t *, int);
  123 void             pmap_qremove(vm_offset_t, int);
  124 void             pmap_release(pmap_t);
  125 void             pmap_remove(pmap_t, vm_offset_t, vm_offset_t);
  126 void             pmap_remove_all(vm_page_t m);
  127 void             pmap_remove_pages(pmap_t, vm_offset_t, vm_offset_t);
  128 void             pmap_zero_page(vm_page_t);
  129 void             pmap_zero_page_area(vm_page_t, int off, int size);
  130 void             pmap_zero_page_idle(vm_page_t);
  131 void             pmap_prefault(pmap_t, vm_offset_t, vm_map_entry_t);
  132 int              pmap_mincore(pmap_t pmap, vm_offset_t addr);
  133 void             pmap_new_thread(struct thread *td, int pages);
  134 void             pmap_dispose_thread(struct thread *td);
  135 void             pmap_new_altkstack(struct thread *td, int pages);
  136 void             pmap_dispose_altkstack(struct thread *td);
  137 void             pmap_swapout_thread(struct thread *td);
  138 void             pmap_swapin_thread(struct thread *td);
  139 void             pmap_activate(struct thread *td);
  140 vm_offset_t      pmap_addr_hint(vm_object_t obj, vm_offset_t addr, vm_size_t size);
  141 void            *pmap_kenter_temporary(vm_offset_t pa, int i);
  142 void             pmap_init2(void);
  143 #endif /* _KERNEL */
  144 #endif /* _PMAP_VM_ */

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