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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:16:58 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:16:58 -0400
commitf7627e2513987bb5d4e8cb13c4e0a478352141ac (patch)
tree46ef70a107285c1dfe8161a57f433d30252d285a /arch/x86/kernel/cpu/proc.c
parent4ac24f63fd203bc12a841a88a2034dccd358d0d1 (diff)
i386: move kernel/cpu
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/proc.c')
-rw-r--r--arch/x86/kernel/cpu/proc.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
new file mode 100644
index 000000000000..1e31b6caffb1
--- /dev/null
+++ b/arch/x86/kernel/cpu/proc.c
@@ -0,0 +1,192 @@
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 */
11static int show_cpuinfo(struct seq_file *m, void *v)
12{
13 /*
14 * These flag bits must match the definitions in <asm/cpufeature.h>.
15 * NULL means this bit is undefined or reserved; either way it doesn't
16 * have meaning as far as Linux is concerned. Note that it's important
17 * to realize there is a difference between this table and CPUID -- if
18 * applications want to get the raw CPUID data, they should access
19 * /dev/cpu/<cpu_nr>/cpuid instead.
20 */
21 static const char * const x86_cap_flags[] = {
22 /* Intel-defined */
23 "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
24 "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
25 "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
26 "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
27
28 /* AMD-defined */
29 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
30 NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
31 NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
32 NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
33 "3dnowext", "3dnow",
34
35 /* Transmeta-defined */
36 "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
37 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
38 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
39 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
40
41 /* Other (Linux-defined) */
42 "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
43 NULL, NULL, NULL, NULL,
44 "constant_tsc", "up", NULL, "arch_perfmon",
45 "pebs", "bts", NULL, "sync_rdtsc",
46 "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
47 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
48
49 /* Intel-defined (#2) */
50 "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
51 "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
52 NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
53 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
54
55 /* VIA/Cyrix/Centaur-defined */
56 NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
57 "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
58 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
59 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
60
61 /* AMD-defined (#2) */
62 "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy",
63 "altmovcr8", "abm", "sse4a",
64 "misalignsse", "3dnowprefetch",
65 "osvw", "ibs", NULL, NULL, NULL, NULL,
66 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
67 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
68
69 /* Auxiliary (Linux-defined) */
70 "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
71 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
72 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
73 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
74 };
75 static const char * const x86_power_flags[] = {
76 "ts", /* temperature sensor */
77 "fid", /* frequency id control */
78 "vid", /* voltage id control */
79 "ttp", /* thermal trip */
80 "tm",
81 "stc",
82 "100mhzsteps",
83 "hwpstate",
84 "", /* constant_tsc - moved to flags */
85 /* nothing */
86 };
87 struct cpuinfo_x86 *c = v;
88 int i, n = c - cpu_data;
89 int fpu_exception;
90
91#ifdef CONFIG_SMP
92 if (!cpu_online(n))
93 return 0;
94#endif
95 seq_printf(m, "processor\t: %d\n"
96 "vendor_id\t: %s\n"
97 "cpu family\t: %d\n"
98 "model\t\t: %d\n"
99 "model name\t: %s\n",
100 n,
101 c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
102 c->x86,
103 c->x86_model,
104 c->x86_model_id[0] ? c->x86_model_id : "unknown");
105
106 if (c->x86_mask || c->cpuid_level >= 0)
107 seq_printf(m, "stepping\t: %d\n", c->x86_mask);
108 else
109 seq_printf(m, "stepping\t: unknown\n");
110
111 if ( cpu_has(c, X86_FEATURE_TSC) ) {
112 unsigned int freq = cpufreq_quick_get(n);
113 if (!freq)
114 freq = cpu_khz;
115 seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
116 freq / 1000, (freq % 1000));
117 }
118
119 /* Cache size */
120 if (c->x86_cache_size >= 0)
121 seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
122#ifdef CONFIG_X86_HT
123 if (c->x86_max_cores * smp_num_siblings > 1) {
124 seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
125 seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[n]));
126 seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
127 seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
128 }
129#endif
130
131 /* We use exception 16 if we have hardware math and we've either seen it or the CPU claims it is internal */
132 fpu_exception = c->hard_math && (ignore_fpu_irq || cpu_has_fpu);
133 seq_printf(m, "fdiv_bug\t: %s\n"
134 "hlt_bug\t\t: %s\n"
135 "f00f_bug\t: %s\n"
136 "coma_bug\t: %s\n"
137 "fpu\t\t: %s\n"
138 "fpu_exception\t: %s\n"
139 "cpuid level\t: %d\n"
140 "wp\t\t: %s\n"
141 "flags\t\t:",
142 c->fdiv_bug ? "yes" : "no",
143 c->hlt_works_ok ? "no" : "yes",
144 c->f00f_bug ? "yes" : "no",
145 c->coma_bug ? "yes" : "no",
146 c->hard_math ? "yes" : "no",
147 fpu_exception ? "yes" : "no",
148 c->cpuid_level,
149 c->wp_works_ok ? "yes" : "no");
150
151 for ( i = 0 ; i < 32*NCAPINTS ; i++ )
152 if ( test_bit(i, c->x86_capability) &&
153 x86_cap_flags[i] != NULL )
154 seq_printf(m, " %s", x86_cap_flags[i]);
155
156 for (i = 0; i < 32; i++)
157 if (c->x86_power & (1 << i)) {
158 if (i < ARRAY_SIZE(x86_power_flags) &&
159 x86_power_flags[i])
160 seq_printf(m, "%s%s",
161 x86_power_flags[i][0]?" ":"",
162 x86_power_flags[i]);
163 else
164 seq_printf(m, " [%d]", i);
165 }
166
167 seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
168 c->loops_per_jiffy/(500000/HZ),
169 (c->loops_per_jiffy/(5000/HZ)) % 100);
170 seq_printf(m, "clflush size\t: %u\n\n", c->x86_clflush_size);
171
172 return 0;
173}
174
175static void *c_start(struct seq_file *m, loff_t *pos)
176{
177 return *pos < NR_CPUS ? cpu_data + *pos : NULL;
178}
179static void *c_next(struct seq_file *m, void *v, loff_t *pos)
180{
181 ++*pos;
182 return c_start(m, pos);
183}
184static void c_stop(struct seq_file *m, void *v)
185{
186}
187struct seq_operations cpuinfo_op = {
188 .start = c_start,
189 .next = c_next,
190 .stop = c_stop,
191 .show = show_cpuinfo,
192};
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 02:32:39 -0500