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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1999,2001-2004, 2006 Silicon Graphics, Inc. All Rights Reserved.
*
* Module to export the system's Firmware Interface Tables, including
* PROM revision numbers and banners, in /proc
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/nodemask.h>
#include <asm/io.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/sn_cpuid.h>
#include <asm/sn/addrs.h>
MODULE_DESCRIPTION("PROM version reporting for /proc");
MODULE_AUTHOR("Chad Talbott");
MODULE_LICENSE("GPL");
/* Standard Intel FIT entry types */
#define FIT_ENTRY_FIT_HEADER 0x00 /* FIT header entry */
#define FIT_ENTRY_PAL_B 0x01 /* PAL_B entry */
/* Entries 0x02 through 0x0D reserved by Intel */
#define FIT_ENTRY_PAL_A_PROC 0x0E /* Processor-specific PAL_A entry */
#define FIT_ENTRY_PAL_A 0x0F /* PAL_A entry, same as... */
#define FIT_ENTRY_PAL_A_GEN 0x0F /* ...Generic PAL_A entry */
#define FIT_ENTRY_UNUSED 0x7F /* Unused (reserved by Intel?) */
/* OEM-defined entries range from 0x10 to 0x7E. */
#define FIT_ENTRY_SAL_A 0x10 /* SAL_A entry */
#define FIT_ENTRY_SAL_B 0x11 /* SAL_B entry */
#define FIT_ENTRY_SALRUNTIME 0x12 /* SAL runtime entry */
#define FIT_ENTRY_EFI 0x1F /* EFI entry */
#define FIT_ENTRY_FPSWA 0x20 /* embedded fpswa entry */
#define FIT_ENTRY_VMLINUX 0x21 /* embedded vmlinux entry */
#define FIT_MAJOR_SHIFT (32 + 8)
#define FIT_MAJOR_MASK ((1 << 8) - 1)
#define FIT_MINOR_SHIFT 32
#define FIT_MINOR_MASK ((1 << 8) - 1)
#define FIT_MAJOR(q) \
((unsigned) ((q) >> FIT_MAJOR_SHIFT) & FIT_MAJOR_MASK)
#define FIT_MINOR(q) \
((unsigned) ((q) >> FIT_MINOR_SHIFT) & FIT_MINOR_MASK)
#define FIT_TYPE_SHIFT (32 + 16)
#define FIT_TYPE_MASK ((1 << 7) - 1)
#define FIT_TYPE(q) \
((unsigned) ((q) >> FIT_TYPE_SHIFT) & FIT_TYPE_MASK)
struct fit_type_map_t {
unsigned char type;
const char *name;
};
static const struct fit_type_map_t fit_entry_types[] = {
{FIT_ENTRY_FIT_HEADER, "FIT Header"},
{FIT_ENTRY_PAL_A_GEN, "Generic PAL_A"},
{FIT_ENTRY_PAL_A_PROC, "Processor-specific PAL_A"},
{FIT_ENTRY_PAL_A, "PAL_A"},
{FIT_ENTRY_PAL_B, "PAL_B"},
{FIT_ENTRY_SAL_A, "SAL_A"},
{FIT_ENTRY_SAL_B, "SAL_B"},
{FIT_ENTRY_SALRUNTIME, "SAL runtime"},
{FIT_ENTRY_EFI, "EFI"},
{FIT_ENTRY_VMLINUX, "Embedded Linux"},
{FIT_ENTRY_FPSWA, "Embedded FPSWA"},
{FIT_ENTRY_UNUSED, "Unused"},
{0xff, "Error"},
};
static const char *fit_type_name(unsigned char type)
{
struct fit_type_map_t const *mapp;
for (mapp = fit_entry_types; mapp->type != 0xff; mapp++)
if (type == mapp->type)
return mapp->name;
if ((type > FIT_ENTRY_PAL_A) && (type < FIT_ENTRY_UNUSED))
return "OEM type";
if ((type > FIT_ENTRY_PAL_B) && (type < FIT_ENTRY_PAL_A))
return "Reserved";
return "Unknown type";
}
static int
get_fit_entry(unsigned long nasid, int index, unsigned long *fentry,
char *banner, int banlen)
{
return ia64_sn_get_fit_compt(nasid, index, fentry, banner, banlen);
}
/*
* These two routines display the FIT table for each node.
*/
static int dump_fit_entry(char *page, unsigned long *fentry)
{
unsigned type;
type = FIT_TYPE(fentry[1]);
return sprintf(page, "%02x %-25s %x.%02x %016lx %u\n",
type,
fit_type_name(type),
FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1]),
fentry[0],
/* mult by sixteen to get size in bytes */
(unsigned)(fentry[1] & 0xffffff) * 16);
}
/*
* We assume that the fit table will be small enough that we can print
* the whole thing into one page. (This is true for our default 16kB
* pages -- each entry is about 60 chars wide when printed.) I read
* somewhere that the maximum size of the FIT is 128 entries, so we're
* OK except for 4kB pages (and no one is going to do that on SN
* anyway).
*/
static int
dump_fit(char *page, unsigned long nasid)
{
unsigned long fentry[2];
int index;
char *p;
p = page;
for (index=0;;index++) {
BUG_ON(index * 60 > PAGE_SIZE);
if (get_fit_entry(nasid, index, fentry, NULL, 0))
break;
p += dump_fit_entry(p, fentry);
}
return p - page;
}
static int
dump_version(char *page, unsigned long nasid)
{
unsigned long fentry[2];
char banner[128];
int index;
int len;
for (index = 0; ; index++) {
if (get_fit_entry(nasid, index, fentry, banner,
sizeof(banner)))
return 0;
if (FIT_TYPE(fentry[1]) == FIT_ENTRY_SAL_A)
break;
}
len = sprintf(page, "%x.%02x\n", FIT_MAJOR(fentry[1]),
FIT_MINOR(fentry[1]));
page += len;
if (banner[0])
len += snprintf(page, PAGE_SIZE-len, "%s\n", banner);
return len;
}
/* same as in proc_misc.c */
static int
proc_calc_metrics(char *page, char **start, off_t off, int count, int *eof,
int len)
{
if (len <= off + count)
*eof = 1;
*start = page + off;
len -= off;
if (len > count)
len = count;
if (len < 0)
len = 0;
return len;
}
static int
read_version_entry(char *page, char **start, off_t off, int count, int *eof,
void *data)
{
int len;
/* data holds the NASID of the node */
len = dump_version(page, (unsigned long)data);
len = proc_calc_metrics(page, start, off, count, eof, len);
return len;
}
static int
read_fit_entry(char *page, char **start, off_t off, int count, int *eof,
void *data)
{
int len;
/* data holds the NASID of the node */
len = dump_fit(page, (unsigned long)data);
len = proc_calc_metrics(page, start, off, count, eof, len);
return len;
}
/* module entry points */
int __init prominfo_init(void);
void __exit prominfo_exit(void);
module_init(prominfo_init);
module_exit(prominfo_exit);
static struct proc_dir_entry *sgi_prominfo_entry;
#define NODE_NAME_LEN 11
int __init prominfo_init(void)
{
cnodeid_t cnodeid;
if (!ia64_platform_is("sn2"))
return 0;
sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL);
if (!sgi_prominfo_entry)
return -ENOMEM;
for_each_online_node(cnodeid) {
struct proc_dir_entry *dir;
unsigned long nasid;
char name[NODE_NAME_LEN];
sprintf(name, "node%d", cnodeid);
dir = proc_mkdir(name, sgi_prominfo_entry);
if (!dir)
continue;
nasid = cnodeid_to_nasid(cnodeid);
create_proc_read_entry("fit", 0, dir, read_fit_entry,
(void *)nasid);
create_proc_read_entry("version", 0, dir,
read_version_entry, (void *)nasid);
}
return 0;
}
void __exit prominfo_exit(void)
{
remove_proc_subtree("sgi_prominfo", NULL);
}
|
