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/* | ||
* Copyright (c) 2000-2010 Apple Inc. All rights reserved. | ||
* | ||
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | ||
* | ||
* This file contains Original Code and/or Modifications of Original Code | ||
* as defined in and that are subject to the Apple Public Source License | ||
* Version 2.0 (the 'License'). You may not use this file except in | ||
* compliance with the License. The rights granted to you under the License | ||
* may not be used to create, or enable the creation or redistribution of, | ||
* unlawful or unlicensed copies of an Apple operating system, or to | ||
* circumvent, violate, or enable the circumvention or violation of, any | ||
* terms of an Apple operating system software license agreement. | ||
* | ||
* Please obtain a copy of the License at | ||
* http://www.opensource.apple.com/apsl/ and read it before using this file. | ||
* | ||
* The Original Code and all software distributed under the License are | ||
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | ||
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | ||
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | ||
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | ||
* Please see the License for the specific language governing rights and | ||
* limitations under the License. | ||
* | ||
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | ||
*/ | ||
/*- | ||
* Copyright (c) 1990, 1993 | ||
* The Regents of the University of California. All rights reserved. | ||
* (c) UNIX System Laboratories, Inc. | ||
* All or some portions of this file are derived from material licensed | ||
* to the University of California by American Telephone and Telegraph | ||
* Co. or Unix System Laboratories, Inc. and are reproduced herein with | ||
* the permission of UNIX System Laboratories, Inc. | ||
* | ||
* 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. | ||
* | ||
* @(#)param.h 8.1 (Berkeley) 4/4/95 | ||
*/ | ||
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/* | ||
* Machine dependent constants for Intel 386. | ||
*/ | ||
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#ifndef _I386_PARAM_H_ | ||
#define _I386_PARAM_H_ | ||
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#include <i386/_param.h> | ||
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/* | ||
* Round p (pointer or byte index) up to a correctly-aligned value for all | ||
* data types (int, long, ...). The result is unsigned int and must be | ||
* cast to any desired pointer type. | ||
*/ | ||
#define ALIGNBYTES __DARWIN_ALIGNBYTES | ||
#define ALIGN(p) __DARWIN_ALIGN(p) | ||
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#define NBPG 4096 /* bytes/page */ | ||
#define PGOFSET (NBPG-1) /* byte offset into page */ | ||
#define PGSHIFT 12 /* LOG2(NBPG) */ | ||
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#define DEV_BSIZE 512 | ||
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ | ||
#define BLKDEV_IOSIZE 2048 | ||
#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */ | ||
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#define CLSIZE 1 | ||
#define CLSIZELOG2 0 | ||
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/* | ||
* Constants related to network buffer management. | ||
* MCLBYTES must be no larger than CLBYTES (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 MSIZESHIFT 8 /* 256 */ | ||
#define MSIZE (1 << MSIZESHIFT) /* size of an mbuf */ | ||
#define MCLSHIFT 11 /* 2048 */ | ||
#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */ | ||
#define MBIGCLSHIFT 12 /* 4096 */ | ||
#define MBIGCLBYTES (1 << MBIGCLSHIFT) /* size of a big cluster */ | ||
#define M16KCLSHIFT 14 /* 16384 */ | ||
#define M16KCLBYTES (1 << M16KCLSHIFT) /* size of a jumbo cluster */ | ||
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#define MCLOFSET (MCLBYTES - 1) | ||
#ifndef NMBCLUSTERS | ||
#define NMBCLUSTERS ((1024 * 1024) / MCLBYTES) /* cl map size: 1MB */ | ||
#endif | ||
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/* | ||
* Some macros for units conversion | ||
*/ | ||
/* Core clicks (NeXT_page_size bytes) to segments and vice versa */ | ||
#define ctos(x) (x) | ||
#define stoc(x) (x) | ||
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/* Core clicks (4096 bytes) to disk blocks */ | ||
#define ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT)) | ||
#define dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT)) | ||
#define dtob(x) ((x)<<DEV_BSHIFT) | ||
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/* clicks to bytes */ | ||
#define ctob(x) ((x)<<PGSHIFT) | ||
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/* bytes to clicks */ | ||
#define btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT) | ||
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#ifdef __APPLE__ | ||
#define btodb(bytes, devBlockSize) \ | ||
((unsigned)(bytes) / devBlockSize) | ||
#define dbtob(db, devBlockSize) \ | ||
((unsigned)(db) * devBlockSize) | ||
#else | ||
#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \ | ||
((unsigned)(bytes) >> DEV_BSHIFT) | ||
#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \ | ||
((unsigned)(db) << DEV_BSHIFT) | ||
#endif | ||
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/* | ||
* Map a ``block device block'' to a file system block. | ||
* This should be device dependent, and will be if we | ||
* add an entry to cdevsw/bdevsw for that purpose. | ||
* For now though just use DEV_BSIZE. | ||
*/ | ||
#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE)) | ||
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/* | ||
* Macros to decode (and encode) processor status word. | ||
*/ | ||
#define STATUS_WORD(rpl, ipl) (((ipl) << 8) | (rpl)) | ||
#define USERMODE(x) (((x) & 3) == 3) | ||
#define BASEPRI(x) (((x) & (255 << 8)) == 0) | ||
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#if defined(KERNEL) || defined(STANDALONE) | ||
#define DELAY(n) delay(n) | ||
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#else /* defined(KERNEL) || defined(STANDALONE) */ | ||
#define DELAY(n) { int N = (n); while (--N > 0); } | ||
#endif /* defined(KERNEL) || defined(STANDALONE) */ | ||
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#endif /* _I386_PARAM_H_ */ |
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/* | ||
* Copyright (c) 2000-2007 Apple Inc. All rights reserved. | ||
* | ||
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | ||
* | ||
* This file contains Original Code and/or Modifications of Original Code | ||
* as defined in and that are subject to the Apple Public Source License | ||
* Version 2.0 (the 'License'). You may not use this file except in | ||
* compliance with the License. The rights granted to you under the License | ||
* may not be used to create, or enable the creation or redistribution of, | ||
* unlawful or unlicensed copies of an Apple operating system, or to | ||
* circumvent, violate, or enable the circumvention or violation of, any | ||
* terms of an Apple operating system software license agreement. | ||
* | ||
* Please obtain a copy of the License at | ||
* http://www.opensource.apple.com/apsl/ and read it before using this file. | ||
* | ||
* The Original Code and all software distributed under the License are | ||
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | ||
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | ||
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | ||
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | ||
* Please see the License for the specific language governing rights and | ||
* limitations under the License. | ||
* | ||
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | ||
*/ | ||
/* | ||
* Copyright 1995 NeXT Computer, Inc. All rights reserved. | ||
*/ | ||
#ifndef _BSD_MACHINE_PARAM_H_ | ||
#define _BSD_MACHINE_PARAM_H_ | ||
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#if defined (__i386__) || defined(__x86_64__) | ||
#include "i386/param.h" | ||
#else | ||
#error architecture not supported | ||
#endif | ||
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#endif /* _BSD_MACHINE_PARAM_H_ */ |
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