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      1 /*	$NetBSD: wired_map.h,v 1.3 2007/02/21 22:59:38 thorpej 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 *);
     43