1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/* $OpenBSD: param.h,v 1.2 1998/10/30 19:28:13 mickey Exp $ */
/*
* Copyright (c) 1988-1994, The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Utah $Hdr: param.h 1.18 94/12/16$
*/
#include <machine/cpu.h>
#include <machine/intr.h>
/*
* Machine dependent constants for PA-RISC.
*/
#define _MACHINE hp700
#define MACHINE "hp700"
#define _MACHINE_ARCH hppa
#define MACHINE_ARCH "hppa"
#define MID_MACHINE MID_HPUX800
/*
* Round p (pointer or byte index) up to a correctly-aligned value for all
* data types (int, long, ...). The result is u_int and must be cast to
* any desired pointer type.
*/
#define ALIGNBYTES 3
#define ALIGN(p) (((u_long)(p) + ALIGNBYTES) &~ ALIGNBYTES)
#define NBPG 4096 /* bytes/page */
#define PGOFSET (NBPG-1) /* byte offset into page */
#define PGSHIFT 12 /* LOG2(NBPG) */
#define SEGSHIFT (PGSHIFT + (PGSHIFT-PTESHIFT)) /* LOG2(NBSEG) */
#define NBSEG (1 << SEGSHIFT) /* bytes/segment (quadrant) */
#define SEGOFSET (NBSEG-1) /* byte offset into segment */
#define KERNBASE 0x00000000 /* start of kernel virtual */
#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
#define DEV_BSIZE 512
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
#define BLKDEV_IOSIZE 2048
#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */
#define STACK_GROWS_UP 1 /* stack grows to higher addresses */
#define CLSIZE 1
#define CLSIZELOG2 0
/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
#define SSIZE (1) /* initial stack size/NBPG */
#define SINCR (1) /* increment of stack/NBPG */
#define UPAGES (2) /* pages of u-area */
#define USPACE (UPAGES * NBPG) /* pages for user struct */
/*
* 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 128 /* size of an mbuf */
#define MCLSHIFT 11
#define MCLBYTES (1 << MCLSHIFT) /* large enough for ether MTU */
#define MCLOFSET (MCLBYTES - 1)
#ifndef NMBCLUSTERS
#ifdef GATEWAY
#define NMBCLUSTERS (1024) /* cl map size: 1MB */
#else
#define NMBCLUSTERS (512) /* cl map size: 0.5MB */
#endif
#endif
/*
* Size of kernel malloc arena in CLBYTES-sized logical pages
*/
#ifndef NKMEMCLUSTERS
#define NKMEMCLUSTERS (8192*1024/CLBYTES)
#endif
/* pages ("clicks") (4096 bytes) to disk blocks */
#define ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT))
#define dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT))
/* pages to bytes */
#define ctob(x) ((x)<<PGSHIFT)
#define btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT)
#define btodb(bytes) ((unsigned)(bytes) >> DEV_BSHIFT)
#define dbtob(db) ((unsigned)(db) << DEV_BSHIFT)
/*
* Map a ``block device block'' to a file system block.
* This should be device dependent, and should use the bsize
* field from the disk label.
* For now though just use DEV_BSIZE.
*/
#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
/*
* Mach derived conversion macros
*/
#define hppa_round_page(x) ((((unsigned long)(x)) + NBPG - 1) & ~(NBPG-1))
#define hppa_trunc_page(x) ((unsigned long)(x) & ~(NBPG-1))
#define btop(x) ((unsigned long)(x) >> PGSHIFT)
#define ptob(x) ((unsigned long)(x) << PGSHIFT)
#ifdef _KERNEL
#ifdef COMPAT_HPUX
/*
* Constants/macros for HPUX multiple mapping of user address space.
* Pages in the first 256Mb are mapped in at every 256Mb segment.
*/
#define HPMMMASK 0xF0000000
#define ISHPMMADDR(v) 0 /* XXX ...jef */
#define HPMMBASEADDR(v) ((unsigned)(v) & ~HPMMMASK)
#endif
#endif
|
