#include <linux/smp.h>
#include <linux/timex.h>
#include <linux/string.h>
-#include <asm/semaphore.h>
#include <linux/seq_file.h>
#include <linux/cpufreq.h>
/*
* Get CPU information for use by the procfs.
*/
-static int show_cpuinfo(struct seq_file *m, void *v)
+static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
+ unsigned int cpu)
+{
+#ifdef CONFIG_SMP
+ if (c->x86_max_cores * smp_num_siblings > 1) {
+ seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
+ seq_printf(m, "siblings\t: %d\n",
+ cpumask_weight(cpu_core_mask(cpu)));
+ seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
+ seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
+ seq_printf(m, "apicid\t\t: %d\n", c->apicid);
+ seq_printf(m, "initial apicid\t: %d\n", c->initial_apicid);
+ }
+#endif
+}
+
+#ifdef CONFIG_X86_32
+static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
{
- /*
- * These flag bits must match the definitions in <asm/cpufeature.h>.
- * NULL means this bit is undefined or reserved; either way it doesn't
- * have meaning as far as Linux is concerned. Note that it's important
- * to realize there is a difference between this table and CPUID -- if
- * applications want to get the raw CPUID data, they should access
- * /dev/cpu/<cpu_nr>/cpuid instead.
+ /*
+ * We use exception 16 if we have hardware math and we've either seen
+ * it or the CPU claims it is internal
*/
- static const char * const x86_cap_flags[] = {
- /* Intel-defined */
- "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
- "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
- "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
- "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
-
- /* AMD-defined */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
- NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
- "3dnowext", "3dnow",
-
- /* Transmeta-defined */
- "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Other (Linux-defined) */
- "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
- NULL, NULL, NULL, NULL,
- "constant_tsc", "up", NULL, "arch_perfmon",
- "pebs", "bts", NULL, "sync_rdtsc",
- "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Intel-defined (#2) */
- "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
- "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
- NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* VIA/Cyrix/Centaur-defined */
- NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
- "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* AMD-defined (#2) */
- "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy",
- "altmovcr8", "abm", "sse4a",
- "misalignsse", "3dnowprefetch",
- "osvw", "ibs", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Auxiliary (Linux-defined) */
- "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- };
- static const char * const x86_power_flags[] = {
- "ts", /* temperature sensor */
- "fid", /* frequency id control */
- "vid", /* voltage id control */
- "ttp", /* thermal trip */
- "tm",
- "stc",
- "100mhzsteps",
- "hwpstate",
- "", /* constant_tsc - moved to flags */
- /* nothing */
- };
+ int fpu_exception = c->hard_math && (ignore_fpu_irq || cpu_has_fpu);
+ seq_printf(m,
+ "fdiv_bug\t: %s\n"
+ "hlt_bug\t\t: %s\n"
+ "f00f_bug\t: %s\n"
+ "coma_bug\t: %s\n"
+ "fpu\t\t: %s\n"
+ "fpu_exception\t: %s\n"
+ "cpuid level\t: %d\n"
+ "wp\t\t: %s\n",
+ c->fdiv_bug ? "yes" : "no",
+ c->hlt_works_ok ? "no" : "yes",
+ c->f00f_bug ? "yes" : "no",
+ c->coma_bug ? "yes" : "no",
+ c->hard_math ? "yes" : "no",
+ fpu_exception ? "yes" : "no",
+ c->cpuid_level,
+ c->wp_works_ok ? "yes" : "no");
+}
+#else
+static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
+{
+ seq_printf(m,
+ "fpu\t\t: yes\n"
+ "fpu_exception\t: yes\n"
+ "cpuid level\t: %d\n"
+ "wp\t\t: yes\n",
+ c->cpuid_level);
+}
+#endif
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
struct cpuinfo_x86 *c = v;
- int i, n = 0;
- int fpu_exception;
+ unsigned int cpu = 0;
+ int i;
#ifdef CONFIG_SMP
- if (!cpu_online(n))
- return 0;
- n = c->cpu_index;
+ cpu = c->cpu_index;
#endif
- seq_printf(m, "processor\t: %d\n"
- "vendor_id\t: %s\n"
- "cpu family\t: %d\n"
- "model\t\t: %d\n"
- "model name\t: %s\n",
- n,
- c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
- c->x86,
- c->x86_model,
- c->x86_model_id[0] ? c->x86_model_id : "unknown");
+ seq_printf(m, "processor\t: %u\n"
+ "vendor_id\t: %s\n"
+ "cpu family\t: %d\n"
+ "model\t\t: %u\n"
+ "model name\t: %s\n",
+ cpu,
+ c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
+ c->x86,
+ c->x86_model,
+ c->x86_model_id[0] ? c->x86_model_id : "unknown");
if (c->x86_mask || c->cpuid_level >= 0)
seq_printf(m, "stepping\t: %d\n", c->x86_mask);
else
seq_printf(m, "stepping\t: unknown\n");
- if ( cpu_has(c, X86_FEATURE_TSC) ) {
- unsigned int freq = cpufreq_quick_get(n);
+ if (cpu_has(c, X86_FEATURE_TSC)) {
+ unsigned int freq = cpufreq_quick_get(cpu);
+
if (!freq)
freq = cpu_khz;
seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
- freq / 1000, (freq % 1000));
+ freq / 1000, (freq % 1000));
}
/* Cache size */
if (c->x86_cache_size >= 0)
seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
-#ifdef CONFIG_X86_HT
- if (c->x86_max_cores * smp_num_siblings > 1) {
- seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
- seq_printf(m, "siblings\t: %d\n",
- cpus_weight(per_cpu(cpu_core_map, n)));
- seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
- seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
- }
-#endif
-
- /* We use exception 16 if we have hardware math and we've either seen it or the CPU claims it is internal */
- fpu_exception = c->hard_math && (ignore_fpu_irq || cpu_has_fpu);
- seq_printf(m, "fdiv_bug\t: %s\n"
- "hlt_bug\t\t: %s\n"
- "f00f_bug\t: %s\n"
- "coma_bug\t: %s\n"
- "fpu\t\t: %s\n"
- "fpu_exception\t: %s\n"
- "cpuid level\t: %d\n"
- "wp\t\t: %s\n"
- "flags\t\t:",
- c->fdiv_bug ? "yes" : "no",
- c->hlt_works_ok ? "no" : "yes",
- c->f00f_bug ? "yes" : "no",
- c->coma_bug ? "yes" : "no",
- c->hard_math ? "yes" : "no",
- fpu_exception ? "yes" : "no",
- c->cpuid_level,
- c->wp_works_ok ? "yes" : "no");
-
- for ( i = 0 ; i < 32*NCAPINTS ; i++ )
- if ( test_bit(i, c->x86_capability) &&
- x86_cap_flags[i] != NULL )
+
+ show_cpuinfo_core(m, c, cpu);
+ show_cpuinfo_misc(m, c);
+
+ seq_printf(m, "flags\t\t:");
+ for (i = 0; i < 32*NCAPINTS; i++)
+ if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
seq_printf(m, " %s", x86_cap_flags[i]);
- for (i = 0; i < 32; i++)
+ seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
+ c->loops_per_jiffy/(500000/HZ),
+ (c->loops_per_jiffy/(5000/HZ)) % 100);
+
+#ifdef CONFIG_X86_64
+ if (c->x86_tlbsize > 0)
+ seq_printf(m, "TLB size\t: %d 4K pages\n", c->x86_tlbsize);
+#endif
+ seq_printf(m, "clflush size\t: %u\n", c->x86_clflush_size);
+#ifdef CONFIG_X86_64
+ seq_printf(m, "cache_alignment\t: %d\n", c->x86_cache_alignment);
+ seq_printf(m, "address sizes\t: %u bits physical, %u bits virtual\n",
+ c->x86_phys_bits, c->x86_virt_bits);
+#endif
+
+ seq_printf(m, "power management:");
+ for (i = 0; i < 32; i++) {
if (c->x86_power & (1 << i)) {
if (i < ARRAY_SIZE(x86_power_flags) &&
x86_power_flags[i])
else
seq_printf(m, " [%d]", i);
}
+ }
- seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
- c->loops_per_jiffy/(500000/HZ),
- (c->loops_per_jiffy/(5000/HZ)) % 100);
- seq_printf(m, "clflush size\t: %u\n\n", c->x86_clflush_size);
+ seq_printf(m, "\n\n");
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
if (*pos == 0) /* just in case, cpu 0 is not the first */
- *pos = first_cpu(cpu_possible_map);
- if ((*pos) < NR_CPUS && cpu_possible(*pos))
+ *pos = cpumask_first(cpu_online_mask);
+ else
+ *pos = cpumask_next(*pos - 1, cpu_online_mask);
+ if ((*pos) < nr_cpu_ids)
return &cpu_data(*pos);
return NULL;
}
+
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
- *pos = next_cpu(*pos, cpu_possible_map);
+ (*pos)++;
return c_start(m, pos);
}
+
static void c_stop(struct seq_file *m, void *v)
{
}
-struct seq_operations cpuinfo_op = {
+
+const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff