sys/arch/mipsco/include/param.h

   1 /*      $NetBSD: param.h,v 1.11 2009/08/13 05:15:09 matt Exp $  */
   2
   3 /*
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * the Systems Programming Group of the University of Utah Computer
   9  * Science Department and Ralph Campbell.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * from: Utah Hdr: machparam.h 1.11 89/08/14
  36  *
  37  *      @(#)param.h     8.1 (Berkeley) 6/10/93
  38  */
  39 /*
  40  * Copyright (c) 1988 University of Utah.
  41  *
  42  * This code is derived from software contributed to Berkeley by
  43  * the Systems Programming Group of the University of Utah Computer
  44  * Science Department and Ralph Campbell.
  45  *
  46  * Redistribution and use in source and binary forms, with or without
  47  * modification, are permitted provided that the following conditions
  48  * are met:
  49  * 1. Redistributions of source code must retain the above copyright
  50  *    notice, this list of conditions and the following disclaimer.
  51  * 2. Redistributions in binary form must reproduce the above copyright
  52  *    notice, this list of conditions and the following disclaimer in the
  53  *    documentation and/or other materials provided with the distribution.
  54  * 3. All advertising materials mentioning features or use of this software
  55  *    must display the following acknowledgement:
  56  *      This product includes software developed by the University of
  57  *      California, Berkeley and its contributors.
  58  * 4. Neither the name of the University nor the names of its contributors
  59  *    may be used to endorse or promote products derived from this software
  60  *    without specific prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  *
  74  * from: Utah Hdr: machparam.h 1.11 89/08/14
  75  *
  76  *      @(#)param.h     8.1 (Berkeley) 6/10/93
  77  */
  78
  79 /*
  80  * Machine-dependent constants (VM, etc) common across MIPS cpus
  81  */
  82
  83 #ifndef _MIPSCO_PARAM_H_
  84 #define _MIPSCO_PARAM_H_
  85
  86 #include <mips/mips_param.h>
  87
  88 /*
  89  * Machine dependent constants for Mips Corp. machines
  90  */
  91
  92 #define _MACHINE        mipsco
  93 #define MACHINE         "mipsco"
  94
  95 #define KERNBASE        0x80000000      /* start of kernel virtual */
  96 #define KERNTEXTOFF     0x80001000      /* start of kernel text for kvm_mkdb */
  97 #define BTOPKERNBASE    ((u_long)KERNBASE >> PGSHIFT)
  98
  99 #define DEV_BSIZE       512
 100 #define DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
 101 #define BLKDEV_IOSIZE   2048
 102 #define MAXPHYS         (64 * 1024)     /* max raw I/O transfer size */
 103
 104 #ifdef _KERNEL
 105 #ifndef _LOCORE
 106
 107 #include <machine/intr.h>
 108
 109 extern void delay(int n);
 110 extern int cpuspeed;
 111 static __inline void __attribute__((__unused__))
 112 DELAY(int n)
 113 {
 114         register int __N = cpuspeed * n;
 115
 116         do {
 117                 __asm("addiu %0,%1,-1" : "=r" (__N) : "0" (__N));
 118         } while (__N > 0);
 119 }
 120
 121 #endif  /* !_LOCORE */
 122 #endif  /* _KERNEL */
 123
 124 #endif  /* !_MIPSCO_PARAM_H_ */