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 00000000000..1e31b6caffb
--- /dev/null
+++ b/arch/x86/kernel/cpu/proc.c
@@ -0,0 +1,192 @@
+#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)
+{
+	/* 
+	 * 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.
+	 */
+	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 */
+	};
+	struct cpuinfo_x86 *c = v;
+	int i, n = c - cpu_data;
+	int fpu_exception;
+
+#ifdef CONFIG_SMP
+	if (!cpu_online(n))
+		return 0;
+#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");
+
+	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 (!freq)
+			freq = cpu_khz;
+		seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
+			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(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 )
+			seq_printf(m, " %s", x86_cap_flags[i]);
+
+	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]);
+			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);
+
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+}
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};