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/* $OpenBSD: param.h,v 1.27 2001/07/06 02:07:44 provos Exp $ */
/* $NetBSD: param.h,v 1.34 1996/03/04 05:04:40 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Gordon W. Ross
* Copyright (c) 1993 Adam Glass
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah Hdr: machparam.h 1.16 92/12/20
* from: @(#)param.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _MACHINE_PARAM_H_
/*
* Machine dependent constants for the Sun3 series.
*/
#define _MACHINE sun3
#define MACHINE "sun3"
/*
* Round p (pointer or byte index) up to a correctly-aligned value
* for all data types (int, long, ...). The result is u_int and
* must be cast to any desired pointer type.
*/
#define PGSHIFT 13 /* LOG2(NBPG) */
#define PAGE_SHIFT 13
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
#define NBSG 0x20000 /* bytes/segment */
#define SEGOFSET (NBSG-1) /* byte offset into segment */
#define SEGSHIFT 17 /* LOG2(NBSG) */
#define KERNBASE 0x0E000000 /* start of kernel virtual */
#define KERNTEXTOFF 0x0E004000 /* start of kernel text */
#include <m68k/param.h>
#define MAXBSIZE 0x8000 /* XXX temp until sun3 dma chaining */
/*
* Constants related to network buffer management.
* MCLBYTES must be no larger than the software page size, and,
* on machines that exchange pages of input or output buffers with mbuf
* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
* of the hardware page size.
*/
#define MSIZE 256 /* size of an mbuf */
#define MCLSHIFT 11
#define MCLBYTES (1 << MCLSHIFT) /* large enough for ether MTU */
#define MCLOFSET (MCLBYTES - 1)
#ifndef NMBCLUSTERS
#ifdef GATEWAY
#define NMBCLUSTERS 512 /* map size, max cluster allocation */
#else
#define NMBCLUSTERS 256 /* map size, max cluster allocation */
#endif
#endif
#define MSGBUFOFF 0x200
#define MSGBUFSIZE (NBPG - MSGBUFOFF)
/*
* Size of kernel malloc arena in logical pages
*/
#ifndef NKMEMCLUSTERS
#define NKMEMCLUSTERS (2048*1024/PAGE_SIZE)
#endif
/*
* spl functions; all are done in-line
*/
#include <machine/psl.h>
#if defined(_KERNEL) && !defined(_LOCORE)
#include <machine/cpu.h>
extern void _delay __P((unsigned));
#define delay(us) _delay((us)<<8)
#define DELAY(n) delay(n)
#endif /* _KERNEL && !_LOCORE */
#endif /* _MACHINE_PARAM_H_ */
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