/*      $NetBSD: param.h,v 1.16 2021/05/31 14:38:56 simonb Exp $        */

/*
* 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. 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_
#define _MACHINE_PARAM_H_

#ifdef _KERNEL_OPT
#include "opt_param.h"
#endif

/*
* Machine dependent constants for the Sun2 series.
*/
#define _MACHINE        sun2
#define MACHINE         "sun2"
#define _MACHINE_ARCH   m68000
#define MACHINE_ARCH    "m68000"
#define MID_MACHINE     MID_M680002K

#define PGSHIFT         11              /* LOG2(NBPG) */

#ifdef MSGBUFSIZE
#error "MSGBUFSIZE is not user-adjustable for this arch"
#endif
#define MSGBUFOFF       0x0
#define MSGBUFSIZE      ((NBPG * 4) - MSGBUFOFF)

/* This is needed by ps (actually USPACE). */
#define UPAGES          (16384 / NBPG)          /* pages of u-area */

#if defined(_KERNEL) || defined(_STANDALONE)

#define KERNBASE        0x00006000      /* start of kernel virtual */
#define KERN_END        0x00E00000      /* end of kernel virtual */

#define MAXBSIZE        0x4000          /* max FS block size */
#define MAXPHYS         0xe000

/*
* XXX fredette - we force a small cluster size to help me debug
* this on my low-memory machine.  These should go away at some point.
*/
#define MCLSHIFT        10

/*
* XXX fredette - we must define this, otw UBC consumes 8MB of kernel VM.
* For now, we make it absurdly small, perhaps it can grow later.
*/
#define UBC_NWINS       32

#define MAXEXEC         1

#endif  /* _KERNEL */

#include <m68k/param.h>

/*
* Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
* logical pages.
*/
#define NKMEMPAGES_MIN_DEFAULT  ((4 * 1024 * 1024) >> PAGE_SHIFT)
#define NKMEMPAGES_MAX_DEFAULT  ((8 * 1024 * 1024) >> PAGE_SHIFT)

#if defined(_KERNEL) && !defined(_LOCORE)

#include <machine/intr.h>

extern void _delay(unsigned);
#define delay(us)       _delay((us)<<8)
#define DELAY(n)        delay(n)

#endif  /* _KERNEL && !_LOCORE */
#endif  /* !_MACHINE_PARAM_H_ */