sys/arch/arc/include/wired_map.h

   1 /*      $NetBSD: wired_map.h,v 1.2 2005/12/11 12:16:39 christos Exp $   */
   2
   3 /*-
   4  * Copyright (C) 2000 Shuichiro URATA.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #define MIPS3_NWIRED_ENTRY      8
  30 #define MIPS3_WIRED_SIZE        MIPS3_PG_SIZE_MASK_TO_SIZE(MIPS3_PG_SIZE_16M)
  31
  32 #ifndef ARC_THRESHOLD_TO_USE_WIRED_TLB  /* tunable */
  33 #define ARC_THRESHOLD_TO_USE_WIRED_TLB  (256 * 1024)
  34 #endif
  35
  36 #include <mips/wired_map.h>
  37
  38 void    arc_init_wired_map(void);
  39 void    arc_wired_enter_page(vaddr_t, paddr_t, vsize_t);
  40 vaddr_t arc_contiguously_wired_mapped(paddr_t, vsize_t);
  41 vaddr_t arc_map_wired(paddr_t, vsize_t);
  42 bool     arc_wired_map_extract(vaddr_t, paddr_t *);