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

     /*
      * Copyright (c) 1991, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
      * The Mach Operating System project at Carnegie-Mellon University.
      *
      * 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 the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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: @(#)pmap.h        8.1 (Berkeley) 6/11/93
     *
     *
     * Copyright (c) 1987, 1990 Carnegie-Mellon University.
     * All rights reserved.
     *
     * Author: Avadis Tevanian, Jr.
     *
     * Permission to use, copy, modify and distribute this software and
     * its documentation is hereby granted, provided that both the copyright
     * notice and this permission notice appear in all copies of the
     * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     *
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     *
     * Carnegie Mellon requests users of this software to return to
     *
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     *
     * any improvements or extensions that they make and grant Carnegie the
     * rights to redistribute these changes.
     *
     * $FreeBSD: releng/5.0/sys/vm/pmap.h 106838 2002-11-13 05:39:58Z alc $
     */
    
    /*
     *      Machine address mapping definitions -- machine-independent
     *      section.  [For machine-dependent section, see "machine/pmap.h".]
     */
    
    #ifndef _PMAP_VM_
    #define _PMAP_VM_
    /*
     * Each machine dependent implementation is expected to
     * keep certain statistics.  They may do this anyway they
     * so choose, but are expected to return the statistics
     * in the following structure.
     */
    struct pmap_statistics {
            long resident_count;    /* # of pages mapped (total) */
            long wired_count;       /* # of pages wired */
    };
    typedef struct pmap_statistics *pmap_statistics_t;
    
    #include <machine/pmap.h>
    
    #ifdef _KERNEL
    struct proc;
    struct thread;
    
    extern  int      pmap_pagedaemon_waken;
    
    #ifdef __alpha__
    void             pmap_page_is_free(vm_page_t m);
    #endif
    void             pmap_change_wiring(pmap_t, vm_offset_t, boolean_t);
    void             pmap_clear_modify(vm_page_t m);
    void             pmap_clear_reference(vm_page_t m);
   void             pmap_copy(pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t);
   void             pmap_copy_page(vm_page_t, vm_page_t);
   void             pmap_enter(pmap_t, vm_offset_t, vm_page_t, vm_prot_t,
                       boolean_t);
   vm_offset_t      pmap_extract(pmap_t pmap, vm_offset_t va);
   void             pmap_growkernel(vm_offset_t);
   void             pmap_init(vm_offset_t, vm_offset_t);
   boolean_t        pmap_is_modified(vm_page_t m);
   boolean_t        pmap_ts_referenced(vm_page_t m);
   void             pmap_kenter(vm_offset_t va, vm_offset_t pa);
   void             pmap_kremove(vm_offset_t);
   vm_offset_t      pmap_map(vm_offset_t *, vm_offset_t, vm_offset_t, int);
   void             pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
                       vm_object_t object, vm_pindex_t pindex, vm_offset_t size,
                       int pagelimit);
   boolean_t        pmap_page_exists_quick(pmap_t pmap, vm_page_t m);
   void             pmap_page_protect(vm_page_t m, vm_prot_t prot);
   vm_offset_t      pmap_phys_address(int);
   void             pmap_pinit(pmap_t);
   void             pmap_pinit0(pmap_t);
   void             pmap_pinit2(pmap_t);
   void             pmap_protect(pmap_t, vm_offset_t, vm_offset_t, vm_prot_t);
   void             pmap_qenter(vm_offset_t, vm_page_t *, int);
   void             pmap_qremove(vm_offset_t, int);
   void             pmap_release(pmap_t);
   void             pmap_remove(pmap_t, vm_offset_t, vm_offset_t);
   void             pmap_remove_all(vm_page_t m);
   void             pmap_remove_pages(pmap_t, vm_offset_t, vm_offset_t);
   void             pmap_zero_page(vm_page_t);
   void             pmap_zero_page_area(vm_page_t, int off, int size);
   void             pmap_zero_page_idle(vm_page_t);
   void             pmap_prefault(pmap_t, vm_offset_t, vm_map_entry_t);
   int              pmap_mincore(pmap_t pmap, vm_offset_t addr);
   void             pmap_new_thread(struct thread *td, int pages);
   void             pmap_dispose_thread(struct thread *td);
   void             pmap_new_altkstack(struct thread *td, int pages);
   void             pmap_dispose_altkstack(struct thread *td);
   void             pmap_swapout_thread(struct thread *td);
   void             pmap_swapin_thread(struct thread *td);
   void             pmap_activate(struct thread *td);
   vm_offset_t      pmap_addr_hint(vm_object_t obj, vm_offset_t addr, vm_size_t size);
   void            *pmap_kenter_temporary(vm_offset_t pa, int i);
   void             pmap_init2(void);
   #endif /* _KERNEL */
   #endif /* _PMAP_VM_ */

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