sys/platform/pc32/include/pmap_inval.h

   1 /*
   2  * Copyright (c) 2003,2004 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  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
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sys/platform/pc32/include/pmap_inval.h,v 1.3 2006/05/20 02:42:06 dillon Exp $
  35  */
  36
  37 #ifndef _MACHINE_PMAP_INVAL_H_
  38 #define _MACHINE_PMAP_INVAL_H_
  39
  40 #ifndef _SYS_THREAD_H_
  41 #include <sys/thread.h>
  42 #endif
  43
  44 typedef struct pmap_inval_info {
  45     int                 pir_flags;
  46     struct lwkt_cpusync pir_cpusync;
  47 } pmap_inval_info;
  48
  49 typedef pmap_inval_info *pmap_inval_info_t;
  50
  51 #define PIRF_INVLTLB    0x0001  /* request invalidation of whole table */
  52 #define PIRF_INVL1PG    0x0002  /* else request invalidation of one page */
  53 #define PIRF_CPUSYNC    0x0004  /* cpusync is currently active */
  54
  55 #ifdef _KERNEL
  56
  57 #ifndef _MACHINE_PMAP_H_
  58 #include <machine/pmap.h>
  59 #endif
  60
  61 void pmap_inval_init(pmap_inval_info_t);
  62 void pmap_inval_interlock(pmap_inval_info_t, pmap_t, vm_offset_t);
  63 void pmap_inval_deinterlock(pmap_inval_info_t, pmap_t);
  64 void pmap_inval_flush(pmap_inval_info_t);
  65 void pmap_inval_done(pmap_inval_info_t);
  66
  67 #endif
  68
  69 #endif