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param.h revision 1.9.20.3 
      1 /*	$NetBSD: param.h,v 1.9.20.3 2010/03/11 15:02:42 yamt 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_ */
    125