Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / arch / x86 / kernel / cpu / proc.c
index 2d42b41..62ac8cb 100644 (file)
 #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);
+       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);
+
+       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])
                                seq_printf(m, "%s%s",
-                                          x86_power_flags[i][0]?" ":"",
+                                          x86_power_flags[i][0] ? " " : "",
                                           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;
 }
@@ -177,20 +141,25 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 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,