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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/* $NetBSD: param.h,v 1.16 2021/05/31 14:38:57 simonb Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _AARCH64_PARAM_H_
#define _AARCH64_PARAM_H_
#ifdef __aarch64__
#ifdef _KERNEL_OPT
#include "opt_cputypes.h"
#include "opt_param.h"
#endif
/*
* Machine dependent constants for all ARM processors
*/
/*
* For KERNEL code:
* MACHINE must be defined by the individual port. This is so that
* uname returns the correct thing, etc.
*
* MACHINE_ARCH may be defined by individual ports as a temporary
* measure while we're finishing the conversion to ELF.
*
* For non-KERNEL code:
* If ELF, MACHINE and MACHINE_ARCH are forced to "arm/armeb".
*/
#if defined(_KERNEL)
# ifndef MACHINE_ARCH /* XXX For now */
# ifdef __AARCH64EB__
# define _MACHINE_ARCH aarch64eb
# define MACHINE_ARCH "aarch64eb"
# define _MACHINE32_ARCH earmv7hfeb
# define MACHINE32_ARCH "earmv7hfeb"
# else
# define _MACHINE_ARCH aarch64
# define MACHINE_ARCH "aarch64"
# define _MACHINE32_ARCH earmv7hf
# define MACHINE32_ARCH "earmv7hf"
# endif /* __AARCH64EB__ */
# endif /* MACHINE_ARCH */
#else
# undef _MACHINE
# undef MACHINE
# undef _MACHINE_ARCH
# undef MACHINE_ARCH
# undef _MACHINE32_ARCH
# undef MACHINE32_ARCH
# define _MACHINE aarch64
# define MACHINE "aarch64"
# ifdef __AARCH64EB__
# define _MACHINE_ARCH aarch64eb
# define MACHINE_ARCH "aarch64eb"
# define _MACHINE32_ARCH earmv7hfeb
# define MACHINE32_ARCH "earmv7hfeb"
# else
# define _MACHINE_ARCH aarch64
# define MACHINE_ARCH "aarch64"
# define _MACHINE32_ARCH earmv7hf
# define MACHINE32_ARCH "earmv7hf"
# endif /* __AARCH64EB__ */
#endif /* !_KERNEL */
#define MID_MACHINE MID_AARCH64
/* AARCH64-specific macro to align a stack pointer (downwards). */
#define STACK_ALIGNBYTES (16 - 1)
#define ALIGNBYTES32 (8 - 1)
#define ALIGN32(p) \
(((uintptr_t)(p) + ALIGNBYTES32) & ~ALIGNBYTES32)
#define NKMEMPAGES_MIN_DEFAULT ((128UL * 1024 * 1024) >> PAGE_SHIFT)
#define NKMEMPAGES_MAX_UNLIMITED 1
#ifdef AARCH64_PAGE_SHIFT
#if (1 << AARCH64_PAGE_SHIFT) & ~0x141000
#error AARCH64_PAGE_SHIFT contains an unsupported value.
#endif
#define PGSHIFT AARCH64_PAGE_SHIFT
#else
#define PGSHIFT 12
#endif
#define NBPG (1 << PGSHIFT)
#define PGOFSET (NBPG - 1)
/*
* Constants related to network buffer management.
* MCLBYTES must be no larger than NBPG (the software page size), and
* NBPG % MCLBYTES must be zero.
*/
#if PGSHIFT > 12
#define MSIZE 256 /* size of an mbuf */
#else
#define MSIZE 512 /* size of an mbuf */
#endif
#ifndef MCLSHIFT
#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
/* 2K cluster can hold Ether frame */
#endif /* MCLSHIFT */
#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
#ifndef NFS_RSIZE
#define NFS_RSIZE 32768 /* Default NFS read data size */
#endif
#ifndef NFS_WSIZE
#define NFS_WSIZE 32768 /* Default NFS write data size */
#endif
#ifndef MSGBUFSIZE
#define MSGBUFSIZE 65536 /* default message buffer size */
#endif
#define COHERENCY_UNIT 128
#define CACHE_LINE_SIZE 128
#define MAXCPUS 256
#ifdef _KERNEL
#ifndef __HIDE_DELAY
void delay(unsigned int);
#define DELAY(x) delay(x)
#endif
/*
* Compatibility /dev/zero mapping.
*/
#ifdef COMPAT_16
#define COMPAT_ZERODEV(x) (x == makedev(0, _DEV_ZERO_oARM))
#endif
#endif /* _KERNEL */
#define aarch64_btop(x) ((unsigned long)(x) >> PGSHIFT)
#define aarch64_ptob(x) ((unsigned long)(x) << PGSHIFT)
#define aarch64_trunc_page(x) ((unsigned long)(x) & ~PGSHIFT)
#define aarch64_round_page(x) ((((unsigned long)(x)) + PGOFSET) & ~PGOFSET)
/* compatibility for arm */
#define arm_btop(x) aarch64_btop(x)
#define arm_ptob(x) aarch64_ptob(x)
#elif defined(__arm__)
#include <arm/param.h>
#endif /* __aarch64__/__arm__ */
#endif /* _AARCH64_PARAM_H_ */
|
