| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <47BC7549.4050709@ct.jp.nec.com>
Date: Wed, 20 Feb 2008 10:45:29 -0800
From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 2/5] x86: make cpu/proc|_64.c similar
From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
clean up for unification.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
---
arch/x86/kernel/cpu/proc.c | 120 +++++++++++++++++++++++-----------------
arch/x86/kernel/cpu/proc_64.c | 63 ++++++++++++---------
2 files changed, 105 insertions(+), 78 deletions(-)
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index af11d31..9bc3b04 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -8,75 +8,90 @@
/*
* Get CPU information for use by the procfs.
*/
+static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
+ unsigned int cpu)
+{
+#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, 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);
+ }
+#endif
+}
+
+static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
+{
+ /*
+ * We use exception 16 if we have hardware math and we've either seen
+ * it or the CPU claims it is internal
+ */
+ 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");
+}
+
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
- 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++)
@@ -91,8 +106,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
}
seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
- c->loops_per_jiffy/(500000/HZ),
- (c->loops_per_jiffy/(5000/HZ)) % 100);
+ 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;
@@ -106,14 +121,17 @@ static void *c_start(struct seq_file *m, loff_t *pos)
return &cpu_data(*pos);
return NULL;
}
+
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
*pos = next_cpu(*pos, cpu_online_map);
return c_start(m, pos);
}
+
static void c_stop(struct seq_file *m, void *v)
{
}
+
const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
diff --git a/arch/x86/kernel/cpu/proc_64.c b/arch/x86/kernel/cpu/proc_64.c
index bf4a94b..ce1b08f 100644
--- a/arch/x86/kernel/cpu/proc_64.c
+++ b/arch/x86/kernel/cpu/proc_64.c
@@ -8,25 +8,48 @@
/*
* Get CPU information for use by the procfs.
*/
+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",
+ cpus_weight(per_cpu(cpu_core_map, 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);
+ }
+#endif
+}
+
+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);
+}
static int show_cpuinfo(struct seq_file *m, void *v)
{
struct cpuinfo_x86 *c = v;
- int cpu = 0, i;
+ unsigned int cpu = 0;
+ int i;
#ifdef CONFIG_SMP
cpu = c->cpu_index;
#endif
-
seq_printf(m, "processor\t: %u\n"
"vendor_id\t: %s\n"
"cpu family\t: %d\n"
- "model\t\t: %d\n"
+ "model\t\t: %u\n"
"model name\t: %s\n",
- (unsigned)cpu,
+ cpu,
c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
c->x86,
- (int)c->x86_model,
+ c->x86_model,
c->x86_model_id[0] ? c->x86_model_id : "unknown");
if (c->x86_mask || c->cpuid_level >= 0)
@@ -35,7 +58,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "stepping\t: unknown\n");
if (cpu_has(c, X86_FEATURE_TSC)) {
- unsigned int freq = cpufreq_quick_get((unsigned)cpu);
+ unsigned int freq = cpufreq_quick_get(cpu);
if (!freq)
freq = cpu_khz;
@@ -47,24 +70,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
if (c->x86_cache_size >= 0)
seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
-#ifdef CONFIG_SMP
- if (smp_num_siblings * c->x86_max_cores > 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, 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);
- }
-#endif
-
- seq_printf(m,
- "fpu\t\t: yes\n"
- "fpu_exception\t: yes\n"
- "cpuid level\t: %d\n"
- "wp\t\t: yes\n"
- "flags\t\t:",
- c->cpuid_level);
+ 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]);
@@ -119,8 +128,8 @@ static void c_stop(struct seq_file *m, void *v)
}
const struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = show_cpuinfo,
+ .start = c_start,
+ .next = c_next,
+ .stop = c_stop,
+ .show = show_cpuinfo,
};
--
1.5.3.8
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists