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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* SPDX-License-Identifier: BSD-2-Clause */
/* PCI Print Current Configuration To Terminal
*
* COPYRIGHT (c) 2010 Cobham Gaisler AB.
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <inttypes.h>
#include <stdio.h>
#include <pci.h>
#include <pci/access.h>
/* PCI Access Library shortcuts */
#define PCI_CFG_R8(dev, args...) pci_cfg_r8(dev, args)
#define PCI_CFG_R16(dev, args...) pci_cfg_r16(dev, args)
#define PCI_CFG_R32(dev, args...) pci_cfg_r32(dev, args)
#define PCI_CFG_W8(dev, args...) pci_cfg_w8(dev, args)
#define PCI_CFG_W16(dev, args...) pci_cfg_w16(dev, args)
#define PCI_CFG_W32(dev, args...) pci_cfg_w32(dev, args)
void pci_print_dev(pci_dev_t dev)
{
int maxbars, pos, romadrs;
uint32_t tmp, tmp2, id;
uint16_t irq;
uint8_t irq_pin;
char *str, *str2;
uint32_t base, limit;
maxbars = 6;
romadrs = 0x30;
str = "";
PCI_CFG_R32(dev, PCIR_REVID, &tmp);
tmp >>= 16;
if (tmp == PCID_PCI2PCI_BRIDGE) {
maxbars = 2;
romadrs = 0x38;
str = "(BRIDGE)";
}
PCI_CFG_R32(dev, PCIR_VENDOR, &id);
printf("\nBus %x Slot %x function: %x [0x%x] %s\n",
PCI_DEV_EXPAND(dev), dev, str);
printf("\tVendor id: 0x%" PRIx32 ", device id: 0x%" PRIx32 "\n",
id & 0xffff, id >> 16);
if (maxbars == 2) {
PCI_CFG_R32(dev, PCIR_PRIBUS_1, &tmp);
printf("\tPrimary: %" PRIx32 " Secondary: %" PRIx32
" Subordinate: %" PRIx32 "\n",
tmp & 0xff, (tmp >> 8) & 0xff, (tmp >> 16) & 0xff);
}
PCI_CFG_R16(dev, PCIR_INTLINE, &irq);
irq_pin = irq >> 8;
if ((irq_pin > 0) && (irq_pin < 5))
printf("\tIRQ INT%c# LINE: %d\n",
(irq_pin - 1) + 'A', (irq & 0xff));
/* Print standard BARs */
for (pos = 0; pos < maxbars; pos++) {
PCI_CFG_R32(dev, PCIR_BAR(0) + pos*4, &tmp);
PCI_CFG_W32(dev, PCIR_BAR(0) + pos*4, 0xffffffff);
PCI_CFG_R32(dev, PCIR_BAR(0) + pos*4, &tmp2);
PCI_CFG_W32(dev, PCIR_BAR(0) + pos*4, tmp);
if (tmp2 != 0 && tmp2 != 0xffffffff && ((tmp2 & 0x1) ||
((tmp2 & 0x6) == 0))) {
uint32_t mask = ~0xf;
if ((tmp2 & 0x1) == 1) {
/* I/O Bar */
mask = ~3;
tmp2 = tmp2 | 0xffffff00;
}
tmp2 &= mask;
tmp2 = ~tmp2+1; /* Size of BAR */
if (tmp2 < 0x1000) {
str = "B";
} else if (tmp2 < 0x100000) {
str = "kB";
tmp2 = tmp2 / 1024;
} else {
str = "MB";
tmp2 = tmp2 / (1024*1024);
}
printf("\tBAR %d: %" PRIx32 " [%" PRIu32 "%s]\n",
pos, tmp, tmp2, str);
}
}
/* Print ROM BARs */
PCI_CFG_R32(dev, romadrs, &tmp);
PCI_CFG_W32(dev, romadrs, 0xffffffff);
PCI_CFG_R32(dev, romadrs, &tmp2);
PCI_CFG_W32(dev, romadrs, tmp);
if (tmp2 & 1) {
/* ROM BAR available */
tmp2 &= PCIM_BIOS_ADDR_MASK;
tmp2 = (~tmp2 + 1); /* Size of BAR */
if (tmp2 < 0x1000) {
str = "B";
} else if (tmp2 < 0x100000) {
str = "kB";
tmp2 = tmp2 / 1024;
} else {
str = "MB";
tmp2 = tmp2 / (1024*1024);
}
str2 = tmp & 1 ? "ENABLED" : "DISABLED";
printf("\tROM: %08" PRIx32 " [%" PRIu32 "%s] (%s)\n",
tmp, tmp2, str, str2);
}
/* Print Bridge addresses */
if (maxbars == 2) {
tmp = 0;
PCI_CFG_R32(dev, 0x1C, &tmp);
if (tmp != 0) {
base = (tmp & 0x00f0) << 8;
limit = (tmp & 0xf000) | 0xfff;
PCI_CFG_R32(dev, 0x30, &tmp);
base |= (tmp & 0xffff) << 16;
limit |= (tmp & 0xffff0000);
str = "ENABLED";
if (limit < base)
str = "DISABLED";
printf("\tI/O: BASE: 0x%08" PRIx32 ", LIMIT: 0x%08"
PRIx32 " (%s)\n", base, limit, str);
}
PCI_CFG_R32(dev, 0x20, &tmp);
if (tmp != 0) {
base = (tmp & 0xfff0) << 16;
limit = (tmp & 0xfff00000) | 0xfffff;
str = "ENABLED";
if (limit < base)
str = "DISABLED";
printf("\tMEMIO: BASE: 0x%08" PRIx32 ", LIMIT: 0x%08"
PRIx32 " (%s)\n", base, limit, str);
}
PCI_CFG_R32(dev, 0x24, &tmp);
if (tmp != 0) {
base = (tmp & 0xfff0) << 16;
limit = (tmp & 0xfff00000) | 0xfffff;
str = "ENABLED";
if (limit < base)
str = "DISABLED";
printf("\tMEM: BASE: 0x%08" PRIx32 ", LIMIT: 0x%08"
PRIx32 " (%s)\n", base, limit, str);
}
}
printf("\n");
}
void pci_print_device(int bus, int slot, int function)
{
pci_print_dev(PCI_DEV(bus, slot, function));
}
void pci_print(void)
{
int fail, bus, slot, func;
pci_dev_t dev;
uint8_t header;
uint32_t id;
printf("\nPCI devices found and configured:\n");
for (bus = 0; bus < pci_bus_count(); bus++) {
for (slot = 0; slot <= PCI_SLOTMAX; slot++) {
for (func=0; func <= PCI_FUNCMAX; func++) {
dev = PCI_DEV(bus, slot, func);
fail = PCI_CFG_R32(dev, PCIR_VENDOR, &id);
if (!fail && id != PCI_INVALID_VENDORDEVICEID && id != 0) {
pci_print_dev(dev);
/* Stop if not a multi-function device */
if (func == 0) {
PCI_CFG_R8(dev, PCIR_HDRTYPE, &header);
if ((header & PCIM_MFDEV) == 0)
break;
}
} else if (func == 0)
break;
}
}
}
printf("\n");
}
|
