x86: make cpu/proc|_64.c similar
[linux-2.6.git] / arch / x86 / kernel / cpu / proc.c
1 #include <linux/smp.h>
2 #include <linux/timex.h>
3 #include <linux/string.h>
4 #include <asm/semaphore.h>
5 #include <linux/seq_file.h>
6 #include <linux/cpufreq.h>
7
8 /*
9  *      Get CPU information for use by the procfs.
10  */
11 static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
12                               unsigned int cpu)
13 {
14 #ifdef CONFIG_X86_HT
15         if (c->x86_max_cores * smp_num_siblings > 1) {
16                 seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
17                 seq_printf(m, "siblings\t: %d\n",
18                            cpus_weight(per_cpu(cpu_core_map, cpu)));
19                 seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
20                 seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
21         }
22 #endif
23 }
24
25 static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
26 {
27         /*
28          * We use exception 16 if we have hardware math and we've either seen
29          * it or the CPU claims it is internal
30          */
31         int fpu_exception = c->hard_math && (ignore_fpu_irq || cpu_has_fpu);
32         seq_printf(m,
33                    "fdiv_bug\t: %s\n"
34                    "hlt_bug\t\t: %s\n"
35                    "f00f_bug\t: %s\n"
36                    "coma_bug\t: %s\n"
37                    "fpu\t\t: %s\n"
38                    "fpu_exception\t: %s\n"
39                    "cpuid level\t: %d\n"
40                    "wp\t\t: %s\n",
41                    c->fdiv_bug ? "yes" : "no",
42                    c->hlt_works_ok ? "no" : "yes",
43                    c->f00f_bug ? "yes" : "no",
44                    c->coma_bug ? "yes" : "no",
45                    c->hard_math ? "yes" : "no",
46                    fpu_exception ? "yes" : "no",
47                    c->cpuid_level,
48                    c->wp_works_ok ? "yes" : "no");
49 }
50
51 static int show_cpuinfo(struct seq_file *m, void *v)
52 {
53         struct cpuinfo_x86 *c = v;
54         unsigned int cpu = 0;
55         int i;
56
57 #ifdef CONFIG_SMP
58         cpu = c->cpu_index;
59 #endif
60         seq_printf(m, "processor\t: %u\n"
61                    "vendor_id\t: %s\n"
62                    "cpu family\t: %d\n"
63                    "model\t\t: %u\n"
64                    "model name\t: %s\n",
65                    cpu,
66                    c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
67                    c->x86,
68                    c->x86_model,
69                    c->x86_model_id[0] ? c->x86_model_id : "unknown");
70
71         if (c->x86_mask || c->cpuid_level >= 0)
72                 seq_printf(m, "stepping\t: %d\n", c->x86_mask);
73         else
74                 seq_printf(m, "stepping\t: unknown\n");
75
76         if (cpu_has(c, X86_FEATURE_TSC)) {
77                 unsigned int freq = cpufreq_quick_get(cpu);
78
79                 if (!freq)
80                         freq = cpu_khz;
81                 seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
82                            freq / 1000, (freq % 1000));
83         }
84
85         /* Cache size */
86         if (c->x86_cache_size >= 0)
87                 seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
88
89         show_cpuinfo_core(m, c, cpu);
90         show_cpuinfo_misc(m, c);
91
92         seq_printf(m, "flags\t\t:");
93         for (i = 0; i < 32*NCAPINTS; i++)
94                 if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
95                         seq_printf(m, " %s", x86_cap_flags[i]);
96
97         for (i = 0; i < 32; i++)
98                 if (c->x86_power & (1 << i)) {
99                         if (i < ARRAY_SIZE(x86_power_flags) &&
100                             x86_power_flags[i])
101                                 seq_printf(m, "%s%s",
102                                            x86_power_flags[i][0]?" ":"",
103                                            x86_power_flags[i]);
104                         else
105                                 seq_printf(m, " [%d]", i);
106                 }
107
108         seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
109                    c->loops_per_jiffy/(500000/HZ),
110                    (c->loops_per_jiffy/(5000/HZ)) % 100);
111         seq_printf(m, "clflush size\t: %u\n\n", c->x86_clflush_size);
112
113         return 0;
114 }
115
116 static void *c_start(struct seq_file *m, loff_t *pos)
117 {
118         if (*pos == 0)  /* just in case, cpu 0 is not the first */
119                 *pos = first_cpu(cpu_online_map);
120         if ((*pos) < NR_CPUS && cpu_online(*pos))
121                 return &cpu_data(*pos);
122         return NULL;
123 }
124
125 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
126 {
127         *pos = next_cpu(*pos, cpu_online_map);
128         return c_start(m, pos);
129 }
130
131 static void c_stop(struct seq_file *m, void *v)
132 {
133 }
134
135 const struct seq_operations cpuinfo_op = {
136         .start  = c_start,
137         .next   = c_next,
138         .stop   = c_stop,
139         .show   = show_cpuinfo,
140 };