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
182
183
184
185
186
187
|
/* $OpenBSD: io.c,v 1.2 2009/10/01 19:37:16 miod Exp $ */
/*-
* Copyright (c) 1998 Doug Rabson
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <err.h>
#include "io.h"
static struct io_ops *ops;
int
ioperm(unsigned long from, unsigned long num, int on)
{
int error;
int bwx;
size_t len = sizeof(bwx);
int mib[3];
mib[0] = CTL_MACHDEP;
mib[1] = CPU_CHIPSET;
mib[2] = CPU_CHIPSET_BWX;
if ((error = sysctl(mib, 3, &bwx, &len, NULL, 0)) < 0)
return error;
if (bwx)
ops = &bwx_io_ops;
else
#ifdef notyet
ops = &swiz_io_ops;
#else
errx(1, "libio is only available on bwx capable machines");
#endif
return ops->ioperm(from, num, on);
}
u_int8_t
inb(u_int32_t port)
{
return ops->inb(port);
}
u_int16_t
inw(u_int32_t port)
{
return ops->inw(port);
}
u_int32_t
inl(u_int32_t port)
{
return ops->inl(port);
}
void
outb(u_int32_t port, u_int8_t val)
{
ops->outb(port, val);
}
void
outw(u_int32_t port, u_int16_t val)
{
ops->outw(port, val);
}
void
outl(u_int32_t port, u_int32_t val)
{
ops->outl(port, val);
}
void *
map_memory(u_int32_t address, u_int32_t size)
{
return ops->map_memory(address, size);
}
void
unmap_memory(void *handle, u_int32_t size)
{
ops->unmap_memory(handle, size);
}
u_int8_t
readb(void *handle, u_int32_t offset)
{
return ops->readb(handle, offset);
}
u_int16_t
readw(void *handle, u_int32_t offset)
{
return ops->readw(handle, offset);
}
u_int32_t
readl(void *handle, u_int32_t offset)
{
return ops->readl(handle, offset);
}
void
writeb(void *handle, u_int32_t offset, u_int8_t val)
{
ops->writeb(handle, offset, val);
__asm__ __volatile__ ("mb");
}
void
writew(void *handle, u_int32_t offset, u_int16_t val)
{
ops->writew(handle, offset, val);
__asm__ __volatile__ ("mb");
}
void
writel(void *handle, u_int32_t offset, u_int32_t val)
{
ops->writel(handle, offset, val);
__asm__ __volatile__ ("mb");
}
void
writeb_nb(void *handle, u_int32_t offset, u_int8_t val)
{
ops->writeb(handle, offset, val);
}
void
writew_nb(void *handle, u_int32_t offset, u_int16_t val)
{
ops->writew(handle, offset, val);
}
void
writel_nb(void *handle, u_int32_t offset, u_int32_t val)
{
ops->writel(handle, offset, val);
}
u_int64_t
dense_base(void)
{
static u_int64_t base = 0;
if (base == 0) {
size_t len = sizeof(base);
int error;
int mib[3];
mib[0] = CTL_MACHDEP;
mib[1] = CPU_CHIPSET;
mib[2] = CPU_CHIPSET_DENSE;
if ((error = sysctl(mib, 3, &base, &len, NULL, 0)) < 0)
err(1, "machdep.chipset.dense_base");
}
return base;
}
|
