sys/arch/acorn26/include/param.h

   1 /*      $NetBSD: param.h,v 1.2 2008/07/02 17:28:57 ad Exp $     */
   2
   3 /*
   4  * Copyright (c) 1994,1995 Mark Brinicombe.
   5  * All rights reserved.
   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  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the RiscBSD team.
  18  * 4. The name "RiscBSD" nor the name of the author may be used to
  19  *    endorse or promote products derived from this software without specific
  20  *    prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
  23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  25  * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef _ARM26_PARAM_H_
  36 #define _ARM26_PARAM_H_
  37
  38 #ifdef _KERNEL
  39 #include <machine/cpu.h>  /* XXX why? */
  40 #include <machine/intr.h> /* XXX for spl(9) */
  41 #endif
  42
  43 #define _MACHINE        acorn26
  44 #define MACHINE         "acorn26"
  45
  46 #define POOL_SUBPAGE 4096
  47
  48 #define PGSHIFT         15              /* LOG2(NBPG) */
  49 #define NBPG            (1 << PGSHIFT)  /* bytes/page */
  50 #define PGOFSET         (NBPG-1)        /* byte offset into page */
  51
  52 #define SSIZE           1               /* initial stack size/NBPG */
  53 #define SINCR           1               /* increment of stack/NBPG */
  54 #define UPAGES          1               /* pages of u-area */
  55 #define USPACE          (UPAGES * NBPG) /* total size of u-area */
  56
  57 #ifndef MSGBUFSIZE
  58 #define MSGBUFSIZE      NBPG            /* default message buffer size */
  59 #endif
  60
  61 #ifndef NMBCLUSTERS
  62 #if defined(_KERNEL_OPT)
  63 #include "opt_gateway.h"
  64 #endif
  65
  66 #ifdef GATEWAY
  67 #define NMBCLUSTERS     512             /* map size, max cluster allocation */
  68 #else
  69 #define NMBCLUSTERS     256             /* map size, max cluster allocation */
  70 #endif
  71 #endif
  72
  73 /*
  74  * Defaults for lower- and upper-bounds for the kmem_map page count.
  75  * Can be overridden by kernel config options.
  76  */
  77 #define NKMEMPAGES_MIN_DEFAULT 0
  78 #define NKMEMPAGES_MAX_DEFAULT 32
  79
  80 /*
  81  * Reduce UBC KVM usage from its default (8Mb when I looked).
  82  * Also make sure the window size is at least the page size.
  83  */
  84 #ifndef UBC_WINSHIFT
  85 #define UBC_WINSHIFT PGSHIFT
  86 #endif
  87 #ifndef UBC_NWINS
  88 #define UBC_NWINS 32
  89 #endif
  90
  91 #ifdef _KERNEL
  92 #ifndef _LOCORE
  93 void delay(unsigned);
  94 #define DELAY(x)        delay(x)
  95 #endif
  96 #define MAXEXEC         1
  97 #endif
  98
  99 #include <arm/param.h>
 100
 101 #endif  /* _ARM_PARAM_H_ */