/*-
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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* All rights reserved.
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*
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*
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* This code is derived from software contributed to Berkeley by
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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* William Jolitz.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* modification, are permitted provided that the following conditions
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* are met:
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* SUCH DAMAGE.
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*
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*
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* from: @(#)param.h 5.8 (Berkeley) 6/28/91
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* from: @(#)param.h 5.8 (Berkeley) 6/28/91
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* $FreeBSD: src/sys/i386/include/param.h,v 1.62 2001/09/12 08:37:33 julian Exp $
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* $FreeBSD: src/sys/i386/include/param.h,v 1.62 2001/09/12 08:37:33 julian Exp $
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*/
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*/
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/*
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/*
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* Machine dependent constants for Intel 386.
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* Machine dependent constants for Intel 386.
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*/
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*/
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#ifndef _MACHINE_PARAM_H_
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#ifndef _MACHINE_PARAM_H_
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#define _MACHINE_PARAM_H_
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#define _MACHINE_PARAM_H_
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#ifndef MACHINE
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#ifndef MACHINE
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#define MACHINE "i386"
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#define MACHINE "i386"
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#endif
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#endif
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#ifndef MACHINE_ARCH
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#ifndef MACHINE_ARCH
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#define MACHINE_ARCH "i386"
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#define MACHINE_ARCH "i386"
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#endif
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#endif
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#define MID_MACHINE MID_I386
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#define MID_MACHINE MID_I386
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/* Endian-ness */
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/* Endian-ness */
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#ifndef BIG_ENDIAN
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#define BIG_ENDIAN 4321
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#endif
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#endif
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#ifndef LITTLE_ENDIAN
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#define LITTLE_ENDIAN 1234
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#endif
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#endif
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#ifndef BYTE_ORDER
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#ifndef BYTE_ORDER
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#define BYTE_ORDER LITTLE_ENDIAN
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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/*
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/*
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* OBJFORMAT_NAMES is a comma-separated list of the object formats
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* OBJFORMAT_NAMES is a comma-separated list of the object formats
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* that are supported on the architecture.
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* that are supported on the architecture.
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*/
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*/
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#define OBJFORMAT_NAMES "elf", "aout"
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#define OBJFORMAT_NAMES "elf", "aout"
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#define OBJFORMAT_DEFAULT "elf"
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#define OBJFORMAT_DEFAULT "elf"
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#define MAXHOSTNAMELEN 64
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#define MAXHOSTNAMELEN 64
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#ifdef SMP
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#ifdef SMP
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#define MAXCPU 16
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#define MAXCPU 16
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#else
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#else
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#define MAXCPU 1
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#define MAXCPU 1
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#endif /* SMP */
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#endif /* SMP */
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#define ALIGNBYTES _ALIGNBYTES
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#define ALIGNBYTES _ALIGNBYTES
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#define ALIGN(p) _ALIGN(p)
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#define ALIGN(p) _ALIGN(p)
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#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
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#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
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#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
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#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
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#define PDRSHIFT 22 /* LOG2(NBPDR) */
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#define PDRSHIFT 22 /* LOG2(NBPDR) */
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#define NBPDR (1<<PDRSHIFT) /* bytes/page dir */
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#define NBPDR (1<<PDRSHIFT) /* bytes/page dir */
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#define PDRMASK (NBPDR-1)
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#define PDRMASK (NBPDR-1)
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define DEV_BSIZE (1<<DEV_BSHIFT)
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#define DEV_BSIZE (1<<DEV_BSHIFT)
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#ifndef BLKDEV_IOSIZE
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#ifndef BLKDEV_IOSIZE
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#define BLKDEV_IOSIZE PAGE_SIZE /* default block device I/O size */
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#define BLKDEV_IOSIZE PAGE_SIZE /* default block device I/O size */
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#endif
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#endif
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#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */
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#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */
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#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
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#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
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#define MAXDUMPPGS (DFLTPHYS/PAGE_SIZE)
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#define MAXDUMPPGS (DFLTPHYS/PAGE_SIZE)
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#define IOPAGES 2 /* pages of i/o permission bitmap */
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#define IOPAGES 2 /* pages of i/o permission bitmap */
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#ifndef KSTACK_PAGES
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#ifndef KSTACK_PAGES
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#define KSTACK_PAGES 2 /* Includes pcb! */
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#define KSTACK_PAGES 2 /* Includes pcb! */
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#endif
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#endif
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#define UAREA_PAGES 1 /* holds struct user WITHOUT PCB (see def.) */
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#define UAREA_PAGES 1 /* holds struct user WITHOUT PCB (see def.) */
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#define KSTACK_GUARD /* compile in the kstack guard page */
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#define KSTACK_GUARD /* compile in the kstack guard page */
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/*
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/*
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* Ceiling on amount of swblock kva space.
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* Ceiling on amount of swblock kva space.
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*/
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*/
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#ifndef VM_SWZONE_SIZE_MAX
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#ifndef VM_SWZONE_SIZE_MAX
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#define VM_SWZONE_SIZE_MAX (70 * 1024 * 1024)
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#define VM_SWZONE_SIZE_MAX (70 * 1024 * 1024)
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#endif
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#endif
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/*
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/*
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* Ceiling on size of buffer cache (really only effects write queueing,
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* Ceiling on size of buffer cache (really only effects write queueing,
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* the VM page cache is not effected).
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* the VM page cache is not effected).
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*/
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*/
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#ifndef VM_BCACHE_SIZE_MAX
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#ifndef VM_BCACHE_SIZE_MAX
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#define VM_BCACHE_SIZE_MAX (200 * 1024 * 1024)
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#define VM_BCACHE_SIZE_MAX (200 * 1024 * 1024)
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#endif
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#endif
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/*
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/*
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* Constants related to network buffer management.
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* Constants related to network buffer management.
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* MCLBYTES must be no larger than PAGE_SIZE.
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* MCLBYTES must be no larger than PAGE_SIZE.
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*/
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*/
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#ifndef MSIZE
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#ifndef MSIZE
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#define MSIZE 256 /* size of an mbuf */
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#define MSIZE 256 /* size of an mbuf */
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#endif /* MSIZE */
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#endif /* MSIZE */
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#ifndef MCLSHIFT
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#ifndef MCLSHIFT
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#define MCLSHIFT 11 /* convert bytes to mbuf clusters */
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#define MCLSHIFT 11 /* convert bytes to mbuf clusters */
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#endif /* MCLSHIFT */
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#endif /* MCLSHIFT */
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#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */
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#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */
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/*
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/*
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* Some macros for units conversion
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* Some macros for units conversion
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*/
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*/
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/* clicks to bytes */
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/* clicks to bytes */
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#define ctob(x) ((x)<<PAGE_SHIFT)
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#define ctob(x) ((x)<<PAGE_SHIFT)
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/* bytes to clicks */
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/* bytes to clicks */
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#define btoc(x) (((unsigned)(x)+PAGE_MASK)>>PAGE_SHIFT)
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#define btoc(x) (((unsigned)(x)+PAGE_MASK)>>PAGE_SHIFT)
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/*
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/*
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* btodb() is messy and perhaps slow because `bytes' may be an off_t. We
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* btodb() is messy and perhaps slow because `bytes' may be an off_t. We
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* want to shift an unsigned type to avoid sign extension and we don't
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* want to shift an unsigned type to avoid sign extension and we don't
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* want to widen `bytes' unnecessarily. Assume that the result fits in
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* want to widen `bytes' unnecessarily. Assume that the result fits in
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* a daddr_t.
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* a daddr_t.
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*/
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*/
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#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \
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#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \
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(sizeof (bytes) > sizeof(long) \
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(sizeof (bytes) > sizeof(long) \
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? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \
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? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \
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: (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT))
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: (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT))
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#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \
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#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \
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((off_t)(db) << DEV_BSHIFT)
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((off_t)(db) << DEV_BSHIFT)
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/*
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/*
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* Mach derived conversion macros
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* Mach derived conversion macros
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*/
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*/
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#define trunc_page(x) ((x) & ~PAGE_MASK)
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#define trunc_page(x) ((x) & ~PAGE_MASK)
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#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
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#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
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#define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK)
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#define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK)
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#define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
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#define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
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#define atop(x) ((unsigned)(x) >> PAGE_SHIFT)
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#define atop(x) ((unsigned)(x) >> PAGE_SHIFT)
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#define ptoa(x) ((unsigned)(x) << PAGE_SHIFT)
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#define ptoa(x) ((unsigned)(x) << PAGE_SHIFT)
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#define i386_btop(x) ((unsigned)(x) >> PAGE_SHIFT)
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#define i386_btop(x) ((unsigned)(x) >> PAGE_SHIFT)
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#define i386_ptob(x) ((unsigned)(x) << PAGE_SHIFT)
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#define i386_ptob(x) ((unsigned)(x) << PAGE_SHIFT)
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#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
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#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
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#endif /* !_MACHINE_PARAM_H_ */
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#endif /* !_MACHINE_PARAM_H_ */
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