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Diffstat (limited to 'tool/headers/arm/param.h')
| -rw-r--r-- | tool/headers/arm/param.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/tool/headers/arm/param.h b/tool/headers/arm/param.h new file mode 100644 index 000000000..0196a8cdf --- /dev/null +++ b/tool/headers/arm/param.h @@ -0,0 +1,161 @@ +/* + * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * + * @APPLE_LICENSE_HEADER_START@ + * + * The contents of this file constitute Original Code as defined in and + * are subject to the Apple Public Source License Version 1.1 (the + * "License"). You may not use this file except in compliance with the + * License. Please obtain a copy of the License at + * http://www.apple.com/publicsource and read it before using this file. + * + * This 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 OR NON-INFRINGEMENT. Please see the + * License for the specific language governing rights and limitations + * under the License. + * + * @APPLE_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 + */ + +/* + * Machine dependent constants for Intel 386. + */ + +#ifndef _ARM_PARAM_H_ +#define _ARM_PARAM_H_ + +/* + * 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 3 +#define ALIGN(p) (((unsigned int)(p) + ALIGNBYTES) &~ ALIGNBYTES) + +#define NBPG 4096 /* bytes/page */ +#define PGOFSET (NBPG-1) /* byte offset into page */ +#define PGSHIFT 12 /* LOG2(NBPG) */ + +#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 */ + +#define CLSIZE 1 +#define CLSIZELOG2 0 + +/* + * 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 MSIZE 256 /* size of an mbuf */ +#define MCLBYTES 2048 /* large enough for ether MTU */ +#define MCLSHIFT 11 +#define MCLOFSET (MCLBYTES - 1) +#ifndef NMBCLUSTERS +#ifdef GATEWAY +#define NMBCLUSTERS ((1024 * 1024) / MCLBYTES) /* cl map size: 1MB */ +#else +#define NMBCLUSTERS ((1024 * 512) / MCLBYTES) /* cl map size: 0.5MB */ +#endif +#endif + +/* + * Some macros for units conversion + */ +/* Core clicks (NeXT_page_size bytes) to segments and vice versa */ +#define ctos(x) (x) +#define stoc(x) (x) + +/* 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) + +/* clicks to bytes */ +#define ctob(x) ((x)<<PGSHIFT) + +/* bytes to clicks */ +#define btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT) + +#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 + +/* + * 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)) + +/* + * 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) + + +#if defined(KERNEL) || defined(STANDALONE) +#define DELAY(n) delay(n) + +#else /* defined(KERNEL) || defined(STANDALONE) */ +#define DELAY(n) { register int N = (n); while (--N > 0); } +#endif /* defined(KERNEL) || defined(STANDALONE) */ + +#endif /* _ARM_PARAM_H_ */ |