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
|
/*
* Copyright 2010 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*/
#include <linux/smp.h>
#include <linux/seq_file.h>
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/timex.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <linux/sysctl.h>
#include <linux/hardirq.h>
#include <linux/hugetlb.h>
#include <linux/mman.h>
#include <asm/unaligned.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/sections.h>
#include <asm/homecache.h>
#include <asm/hardwall.h>
#include <arch/chip.h>
/*
* Support /proc/cpuinfo
*/
#define cpu_to_ptr(n) ((void *)((long)(n)+1))
#define ptr_to_cpu(p) ((long)(p) - 1)
static int show_cpuinfo(struct seq_file *m, void *v)
{
int n = ptr_to_cpu(v);
if (n == 0) {
seq_printf(m, "cpu count\t: %d\n", num_online_cpus());
seq_printf(m, "cpu list\t: %*pbl\n",
cpumask_pr_args(cpu_online_mask));
seq_printf(m, "model name\t: %s\n", chip_model);
seq_printf(m, "flags\t\t:\n"); /* nothing for now */
seq_printf(m, "cpu MHz\t\t: %llu.%06llu\n",
get_clock_rate() / 1000000,
(get_clock_rate() % 1000000));
seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ)) % 100);
}
#ifdef CONFIG_SMP
if (!cpu_online(n))
return 0;
#endif
seq_printf(m, "processor\t: %d\n", n);
/* Print only num_online_cpus() blank lines total. */
if (cpumask_next(n, cpu_online_mask) < nr_cpu_ids)
seq_printf(m, "\n");
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
++*pos;
return c_start(m, pos);
}
static void c_stop(struct seq_file *m, void *v)
{
}
const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
.show = show_cpuinfo,
};
/*
* Support /proc/tile directory
*/
static int __init proc_tile_init(void)
{
struct proc_dir_entry *root = proc_mkdir("tile", NULL);
if (root == NULL)
return 0;
proc_tile_hardwall_init(root);
return 0;
}
arch_initcall(proc_tile_init);
/*
* Support /proc/sys/tile directory
*/
static struct ctl_table unaligned_subtable[] = {
{
.procname = "enabled",
.data = &unaligned_fixup,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.procname = "printk",
.data = &unaligned_printk,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.procname = "count",
.data = &unaligned_fixup_count,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{}
};
static struct ctl_table unaligned_table[] = {
{
.procname = "unaligned_fixup",
.mode = 0555,
.child = unaligned_subtable
},
{}
};
static struct ctl_path tile_path[] = {
{ .procname = "tile" },
{ }
};
static int __init proc_sys_tile_init(void)
{
register_sysctl_paths(tile_path, unaligned_table);
return 0;
}
arch_initcall(proc_sys_tile_init);
|
