Root/
| Source at commit 1271 created 12 years 8 months ago. By meklort, Add missing ppc headers | |
|---|---|
| 1 | /*␊ |
| 2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. The rights granted to you under the License␊ |
| 10 | * may not be used to create, or enable the creation or redistribution of,␊ |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
| 13 | * terms of an Apple operating system software license agreement.␊ |
| 14 | * ␊ |
| 15 | * Please obtain a copy of the License at␊ |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
| 17 | * ␊ |
| 18 | * The Original Code and all software distributed under the License are␊ |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 23 | * Please see the License for the specific language governing rights and␊ |
| 24 | * limitations under the License.␊ |
| 25 | * ␊ |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
| 27 | */␊ |
| 28 | /* Copyright (c) 1993,1995 NeXT Computer, Inc. All Rights Reserved */␊ |
| 29 | ␊ |
| 30 | #ifndef␉_PPC_PARAM_H_␊ |
| 31 | #define␉_PPC_PARAM_H_␊ |
| 32 | ␊ |
| 33 | #include <ppc/_param.h>␊ |
| 34 | ␊ |
| 35 | /*␊ |
| 36 | * Round p (pointer or byte index) up to a correctly-aligned value for all␊ |
| 37 | * data types (int, long, ...). The result is unsigned int and must be␊ |
| 38 | * cast to any desired pointer type.␊ |
| 39 | */␊ |
| 40 | #define␉ALIGNBYTES␉__DARWIN_ALIGNBYTES␊ |
| 41 | #define␉ALIGN(p)␉__DARWIN_ALIGN(p)␊ |
| 42 | ␊ |
| 43 | #define␉NBPG␉␉4096␉␉/* bytes/page */␊ |
| 44 | #define␉PGOFSET␉␉(NBPG-1)␉/* byte offset into page */␊ |
| 45 | #define␉PGSHIFT␉␉12␉␉/* LOG2(NBPG) */␊ |
| 46 | ␊ |
| 47 | #define NBSEG␉␉0x40000000␉/* bytes/segment (quadrant) */␊ |
| 48 | #define␉SEGOFSET␉(NBSEG-1)␉/* byte offset into segment */␊ |
| 49 | #define␉SEGSHIFT␉30␉␉/* LOG2(NBSEG) */␊ |
| 50 | ␊ |
| 51 | #define␉DEV_BSIZE␉512␊ |
| 52 | #define␉DEV_BSHIFT␉9␉␉/* log2(DEV_BSIZE) */␊ |
| 53 | #define BLKDEV_IOSIZE␉2048␊ |
| 54 | #define␉MAXPHYS␉␉(128 * 1024)␉/* max raw I/O transfer size */␊ |
| 55 | ␊ |
| 56 | #define␉STACK_GROWTH_UP␉0␉␉/* stack grows to lower addresses */␊ |
| 57 | ␊ |
| 58 | #define␉CLSIZE␉␉1␊ |
| 59 | #define␉CLSIZELOG2␉0␊ |
| 60 | ␊ |
| 61 | #define STACKSIZE 4␉␉␉/* pages in kernel stack */␊ |
| 62 | #define␉UPAGES␉0␉/* total pages in u-area */␊ |
| 63 | ␉␉␉␉␉/* red zone is beyond this */␊ |
| 64 | ␊ |
| 65 | /*␊ |
| 66 | * Constants related to network buffer management.␊ |
| 67 | * MCLBYTES must be no larger than CLBYTES (the software page size), and,␊ |
| 68 | * on machines that exchange pages of input or output buffers with mbuf␊ |
| 69 | * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple␊ |
| 70 | * of the hardware page size.␊ |
| 71 | */␊ |
| 72 | #define␉MSIZE␉␉256␉␉/* size of an mbuf */␊ |
| 73 | #define␉MCLBYTES␉2048␉␉/* large enough for ether MTU */␊ |
| 74 | #define␉MCLSHIFT␉11␊ |
| 75 | #define␉MCLOFSET␉(MCLBYTES - 1)␊ |
| 76 | #ifndef NMBCLUSTERS␊ |
| 77 | #if GATEWAY␊ |
| 78 | #define␉NMBCLUSTERS␉((1024 * 1024) / MCLBYTES)␉/* cl map size: 1MB */␊ |
| 79 | #else␊ |
| 80 | #define␉NMBCLUSTERS␉((1024 * 1024) / MCLBYTES)␉␊ |
| 81 | ␉␉/* cl map size was 0.5MB when MSIZE was 128, now it's 1MB*/␊ |
| 82 | #endif␊ |
| 83 | #endif␊ |
| 84 | ␊ |
| 85 | /* pages ("clicks") (NBPG bytes) to disk blocks */␊ |
| 86 | #define␉ctod(x)␉((x)<<(PGSHIFT-DEV_BSHIFT))␊ |
| 87 | #define␉dtoc(x)␉((x)>>(PGSHIFT-DEV_BSHIFT))␊ |
| 88 | #define␉dtob(x)␉((x)<<DEV_BSHIFT)␊ |
| 89 | ␊ |
| 90 | /* pages to bytes */␊ |
| 91 | #define␉ctob(x)␉((x)<<PGSHIFT)␊ |
| 92 | ␊ |
| 93 | /* bytes to pages */␊ |
| 94 | #define␉btoc(x)␉(((unsigned)(x)+(PGOFSET))>>PGSHIFT)␊ |
| 95 | #ifdef __APPLE__␊ |
| 96 | #define btodb(bytes, devBlockSize) \␊ |
| 97 | ((unsigned)(bytes) / devBlockSize)␊ |
| 98 | #define dbtob(db, devBlockSize) \␊ |
| 99 | ((unsigned)(db) * devBlockSize)␊ |
| 100 | #else␊ |
| 101 | #define␉btodb(bytes)␉ ␉␉/* calculates (bytes / DEV_BSIZE) */ \␊ |
| 102 | ␉((unsigned)(bytes) >> DEV_BSHIFT)␊ |
| 103 | #define␉dbtob(db)␉␉␉/* calculates (db * DEV_BSIZE) */ \␊ |
| 104 | ␉((unsigned)(db) << DEV_BSHIFT)␊ |
| 105 | #endif␊ |
| 106 | ␊ |
| 107 | /*␊ |
| 108 | * Map a ``block device block'' to a file system block.␊ |
| 109 | * This should be device dependent, and should use the bsize␊ |
| 110 | * field from the disk label.␊ |
| 111 | * For now though just use DEV_BSIZE.␊ |
| 112 | */␊ |
| 113 | #define␉bdbtofsb(bn)␉((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))␊ |
| 114 | ␊ |
| 115 | /* from machdep/ppc/proc_reg.h */␊ |
| 116 | #ifdef __BIG_ENDIAN__␊ |
| 117 | #define ENDIAN_MASK(val,size) (1 << (size-1 - val))␊ |
| 118 | #else␊ |
| 119 | #error code not ported to little endian targets yet␊ |
| 120 | #endif /* __BIG_ENDIAN__ */␊ |
| 121 | ␊ |
| 122 | #ifndef MASK␊ |
| 123 | #define MASK(PART)␉ENDIAN_MASK(PART ## _BIT, 32)␊ |
| 124 | #endif␊ |
| 125 | ␊ |
| 126 | #define␉MSR_EE_BIT␉16␊ |
| 127 | #define␉MSR_PR_BIT␉17␊ |
| 128 | #define USERMODE(msr) (msr & MASK(MSR_PR) ? TRUE : FALSE)␊ |
| 129 | #define BASEPRI(msr) (msr & MASK(MSR_EE) ? TRUE : FALSE)␊ |
| 130 | /* end of from proc_reg.h */␊ |
| 131 | ␊ |
| 132 | #if␉defined(KERNEL) || defined(STANDALONE)␊ |
| 133 | #define␉DELAY(n) delay(n)␊ |
| 134 | #else␊ |
| 135 | #define␉DELAY(n)␉{ register int N = (n); while (--N > 0); }␊ |
| 136 | #endif␉/* defined(KERNEL) || defined(STANDALONE) */␊ |
| 137 | ␊ |
| 138 | #define␉NPIDS␉␉16␉/* maximum number of PIDs per process */␊ |
| 139 | #define␉NIOPIDS␉␉8␉/* maximum number of IO space PIDs */␊ |
| 140 | ␊ |
| 141 | #endif␉/* _PPC_PARAM_H_ */␊ |
| 142 | |
