x86: cosmetic unification cpu/proc|_64.c
[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 #ifdef CONFIG_X86_32
12 static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
13                               unsigned int cpu)
14 {
15 #ifdef CONFIG_X86_HT
16         if (c->x86_max_cores * smp_num_siblings > 1) {
17                 seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
18                 seq_printf(m, "siblings\t: %d\n",
19                            cpus_weight(per_cpu(cpu_core_map, cpu)));
20                 seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
21                 seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
22         }
23 #endif
24 }
25
26 static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
27 {
28         /*
29          * We use exception 16 if we have hardware math and we've either seen
30          * it or the CPU claims it is internal
31          */
32         int fpu_exception = c->hard_math && (ignore_fpu_irq || cpu_has_fpu);
33         seq_printf(m,
34                    "fdiv_bug\t: %s\n"
35                    "hlt_bug\t\t: %s\n"
36                    "f00f_bug\t: %s\n"
37                    "coma_bug\t: %s\n"
38                    "fpu\t\t: %s\n"
39                    "fpu_exception\t: %s\n"
40                    "cpuid level\t: %d\n"
41                    "wp\t\t: %s\n",
42                    c->fdiv_bug ? "yes" : "no",
43                    c->hlt_works_ok ? "no" : "yes",
44                    c->f00f_bug ? "yes" : "no",
45                    c->coma_bug ? "yes" : "no",
46                    c->hard_math ? "yes" : "no",
47                    fpu_exception ? "yes" : "no",
48                    c->cpuid_level,
49                    c->wp_works_ok ? "yes" : "no");
50 }
51 #else
52 static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
53                               unsigned int cpu)
54 {
55 #ifdef CONFIG_SMP
56         if (c->x86_max_cores * smp_num_siblings > 1) {
57                 seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
58                 seq_printf(m, "siblings\t: %d\n",
59                            cpus_weight(per_cpu(cpu_core_map, cpu)));
60                 seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
61                 seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
62         }
63 #endif
64 }
65
66 static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
67 {
68         seq_printf(m,
69                    "fpu\t\t: yes\n"
70                    "fpu_exception\t: yes\n"
71                    "cpuid level\t: %d\n"
72                    "wp\t\t: yes\n",
73                    c->cpuid_level);
74 }
75 #endif
76
77 static int show_cpuinfo(struct seq_file *m, void *v)
78 {
79         struct cpuinfo_x86 *c = v;
80         unsigned int cpu = 0;
81         int i;
82
83 #ifdef CONFIG_SMP
84         cpu = c->cpu_index;
85 #endif
86         seq_printf(m, "processor\t: %u\n"
87                    "vendor_id\t: %s\n"
88                    "cpu family\t: %d\n"
89                    "model\t\t: %u\n"
90                    "model name\t: %s\n",
91                    cpu,
92                    c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
93                    c->x86,
94                    c->x86_model,
95                    c->x86_model_id[0] ? c->x86_model_id : "unknown");
96
97         if (c->x86_mask || c->cpuid_level >= 0)
98                 seq_printf(m, "stepping\t: %d\n", c->x86_mask);
99         else
100                 seq_printf(m, "stepping\t: unknown\n");
101
102         if (cpu_has(c, X86_FEATURE_TSC)) {
103                 unsigned int freq = cpufreq_quick_get(cpu);
104
105                 if (!freq)
106                         freq = cpu_khz;
107                 seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
108                            freq / 1000, (freq % 1000));
109         }
110
111         /* Cache size */
112         if (c->x86_cache_size >= 0)
113                 seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
114
115         show_cpuinfo_core(m, c, cpu);
116         show_cpuinfo_misc(m, c);
117
118         seq_printf(m, "flags\t\t:");
119         for (i = 0; i < 32*NCAPINTS; i++)
120                 if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
121                         seq_printf(m, " %s", x86_cap_flags[i]);
122
123         seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
124                    c->loops_per_jiffy/(500000/HZ),
125                    (c->loops_per_jiffy/(5000/HZ)) % 100);
126
127 #ifdef CONFIG_X86_64
128         if (c->x86_tlbsize > 0)
129                 seq_printf(m, "TLB size\t: %d 4K pages\n", c->x86_tlbsize);
130 #endif
131         seq_printf(m, "clflush size\t: %u\n", c->x86_clflush_size);
132 #ifdef CONFIG_X86_64
133         seq_printf(m, "cache_alignment\t: %d\n", c->x86_cache_alignment);
134         seq_printf(m, "address sizes\t: %u bits physical, %u bits virtual\n",
135                    c->x86_phys_bits, c->x86_virt_bits);
136 #endif
137
138         seq_printf(m, "power management:");
139         for (i = 0; i < 32; i++) {
140                 if (c->x86_power & (1 << i)) {
141                         if (i < ARRAY_SIZE(x86_power_flags) &&
142                             x86_power_flags[i])
143                                 seq_printf(m, "%s%s",
144                                            x86_power_flags[i][0]?" ":"",
145                                            x86_power_flags[i]);
146                         else
147                                 seq_printf(m, " [%d]", i);
148                 }
149         }
150
151         seq_printf(m, "\n\n");
152
153         return 0;
154 }
155
156 static void *c_start(struct seq_file *m, loff_t *pos)
157 {
158         if (*pos == 0)  /* just in case, cpu 0 is not the first */
159                 *pos = first_cpu(cpu_online_map);
160         if ((*pos) < NR_CPUS && cpu_online(*pos))
161                 return &cpu_data(*pos);
162         return NULL;
163 }
164
165 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
166 {
167         *pos = next_cpu(*pos, cpu_online_map);
168         return c_start(m, pos);
169 }
170
171 static void c_stop(struct seq_file *m, void *v)
172 {
173 }
174
175 const struct seq_operations cpuinfo_op = {
176         .start  = c_start,
177         .next   = c_next,
178         .stop   = c_stop,
179         .show   = show_cpuinfo,
180 };