Contributors: 29
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds (pre-git) |
227 |
21.08% |
22 |
28.21% |
| Andi Kleen |
150 |
13.93% |
7 |
8.97% |
| Linus Torvalds |
128 |
11.88% |
4 |
5.13% |
| Hiroshi Shimamoto |
116 |
10.77% |
3 |
3.85% |
| Dave Jones |
87 |
8.08% |
2 |
2.56% |
| Rick Edgecombe |
77 |
7.15% |
1 |
1.28% |
| Sean Christopherson |
76 |
7.06% |
1 |
1.28% |
| Borislav Petkov |
57 |
5.29% |
6 |
7.69% |
| Yinghai Lu |
22 |
2.04% |
2 |
2.56% |
| Robert Love |
22 |
2.04% |
1 |
1.28% |
| Mike Travis |
18 |
1.67% |
3 |
3.85% |
| Lai Jiangshan |
14 |
1.30% |
1 |
1.28% |
| Suresh B. Siddha |
12 |
1.11% |
2 |
2.56% |
| Andrew Morton |
12 |
1.11% |
2 |
2.56% |
| Thomas Gleixner |
11 |
1.02% |
4 |
5.13% |
| Rusty Russell |
11 |
1.02% |
3 |
3.85% |
| Rasmus Villemoes |
6 |
0.56% |
1 |
1.28% |
| H. Peter Anvin |
6 |
0.56% |
1 |
1.28% |
| Rafael J. Wysocki |
6 |
0.56% |
2 |
2.56% |
| Rohit Seth |
5 |
0.46% |
1 |
1.28% |
| Alexey Dobriyan |
4 |
0.37% |
1 |
1.28% |
| jia zhang |
2 |
0.19% |
1 |
1.28% |
| Eric W. Biedermann |
2 |
0.19% |
1 |
1.28% |
| Mathias Krause |
1 |
0.09% |
1 |
1.28% |
| Jan Engelhardt |
1 |
0.09% |
1 |
1.28% |
| Bartosz Golaszewski |
1 |
0.09% |
1 |
1.28% |
| Jaswinder Singh Rajput |
1 |
0.09% |
1 |
1.28% |
| Greg Kroah-Hartman |
1 |
0.09% |
1 |
1.28% |
| Gustavo A. R. Silva |
1 |
0.09% |
1 |
1.28% |
| Total |
1077 |
|
78 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/smp.h>
#include <linux/timex.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <linux/cpufreq.h>
#include <asm/prctl.h>
#include <linux/proc_fs.h>
#include "cpu.h"
#ifdef CONFIG_X86_VMX_FEATURE_NAMES
extern const char * const x86_vmx_flags[NVMXINTS*32];
#endif
/*
* 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
seq_printf(m, "physical id\t: %d\n", c->topo.pkg_id);
seq_printf(m, "siblings\t: %d\n",
cpumask_weight(topology_core_cpumask(cpu)));
seq_printf(m, "core id\t\t: %d\n", c->topo.core_id);
seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
seq_printf(m, "apicid\t\t: %d\n", c->topo.apicid);
seq_printf(m, "initial apicid\t: %d\n", c->topo.initial_apicid);
#endif
}
#ifdef CONFIG_X86_32
static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c)
{
seq_printf(m,
"fdiv_bug\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: yes\n",
boot_cpu_has_bug(X86_BUG_FDIV) ? "yes" : "no",
boot_cpu_has_bug(X86_BUG_F00F) ? "yes" : "no",
boot_cpu_has_bug(X86_BUG_COMA) ? "yes" : "no",
boot_cpu_has(X86_FEATURE_FPU) ? "yes" : "no",
boot_cpu_has(X86_FEATURE_FPU) ? "yes" : "no",
c->cpuid_level);
}
#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;
unsigned int cpu;
int i;
cpu = c->cpu_index;
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_stepping || c->cpuid_level >= 0)
seq_printf(m, "stepping\t: %d\n", c->x86_stepping);
else
seq_puts(m, "stepping\t: unknown\n");
if (c->microcode)
seq_printf(m, "microcode\t: 0x%x\n", c->microcode);
if (cpu_has(c, X86_FEATURE_TSC)) {
unsigned int freq = arch_freq_get_on_cpu(cpu);
seq_printf(m, "cpu MHz\t\t: %u.%03u\n", freq / 1000, (freq % 1000));
}
/* Cache size */
if (c->x86_cache_size)
seq_printf(m, "cache size\t: %u KB\n", c->x86_cache_size);
show_cpuinfo_core(m, c, cpu);
show_cpuinfo_misc(m, c);
seq_puts(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]);
#ifdef CONFIG_X86_VMX_FEATURE_NAMES
if (cpu_has(c, X86_FEATURE_VMX) && c->vmx_capability[0]) {
seq_puts(m, "\nvmx flags\t:");
for (i = 0; i < 32*NVMXINTS; i++) {
if (test_bit(i, (unsigned long *)c->vmx_capability) &&
x86_vmx_flags[i] != NULL)
seq_printf(m, " %s", x86_vmx_flags[i]);
}
}
#endif
seq_puts(m, "\nbugs\t\t:");
for (i = 0; i < 32*NBUGINTS; i++) {
unsigned int bug_bit = 32*NCAPINTS + i;
if (cpu_has_bug(c, bug_bit) && x86_bug_flags[i])
seq_printf(m, " %s", x86_bug_flags[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_puts(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]);
else
seq_printf(m, " [%d]", i);
}
}
seq_puts(m, "\n\n");
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
*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)++;
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,
.stop = c_stop,
.show = show_cpuinfo,
};
#ifdef CONFIG_X86_USER_SHADOW_STACK
static void dump_x86_features(struct seq_file *m, unsigned long features)
{
if (features & ARCH_SHSTK_SHSTK)
seq_puts(m, "shstk ");
if (features & ARCH_SHSTK_WRSS)
seq_puts(m, "wrss ");
}
void arch_proc_pid_thread_features(struct seq_file *m, struct task_struct *task)
{
seq_puts(m, "x86_Thread_features:\t");
dump_x86_features(m, task->thread.features);
seq_putc(m, '\n');
seq_puts(m, "x86_Thread_features_locked:\t");
dump_x86_features(m, task->thread.features_locked);
seq_putc(m, '\n');
}
#endif /* CONFIG_X86_USER_SHADOW_STACK */