Contributors: 23
Author Tokens Token Proportion Commits Commit Proportion
Peter Zijlstra 66 20.18% 4 7.84%
Thomas Gleixner 40 12.23% 9 17.65%
Jithu Joseph 29 8.87% 4 7.84%
Borislav Petkov 26 7.95% 3 5.88%
Andrew Morton 26 7.95% 5 9.80%
Linus Torvalds (pre-git) 23 7.03% 5 9.80%
Andi Kleen 21 6.42% 2 3.92%
Fenghua Yu 18 5.50% 2 3.92%
Yinghai Lu 14 4.28% 2 3.92%
Sean Christopherson 13 3.98% 2 3.92%
Ravi Bangoria 12 3.67% 1 1.96%
Vitaly Kuznetsov 7 2.14% 1 1.96%
Ashok Raj 7 2.14% 1 1.96%
Len Brown 5 1.53% 1 1.96%
Dave Jones 4 1.22% 1 1.96%
Matthew Dobson 3 0.92% 1 1.96%
H. Peter Anvin 3 0.92% 1 1.96%
Daniel Sneddon 3 0.92% 1 1.96%
Glauber de Oliveira Costa 2 0.61% 1 1.96%
Pawan Gupta 2 0.61% 1 1.96%
Jaswinder Singh Rajput 1 0.31% 1 1.96%
Greg Kroah-Hartman 1 0.31% 1 1.96%
Chuck Ebbert 1 0.31% 1 1.96%
Total 327 51 


/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CPU_H
#define _ASM_X86_CPU_H

#include <linux/device.h>
#include <linux/cpu.h>
#include <linux/topology.h>
#include <linux/nodemask.h>
#include <linux/percpu.h>
#include <asm/ibt.h>

#ifndef CONFIG_SMP
#define cpu_physical_id(cpu)			boot_cpu_physical_apicid
#define cpu_acpi_id(cpu)			0
#endif /* CONFIG_SMP */

#ifdef CONFIG_HOTPLUG_CPU
extern void soft_restart_cpu(void);
#endif

extern void ap_init_aperfmperf(void);

int mwait_usable(const struct cpuinfo_x86 *);

unsigned int x86_family(unsigned int sig);
unsigned int x86_model(unsigned int sig);
unsigned int x86_stepping(unsigned int sig);
#ifdef CONFIG_X86_BUS_LOCK_DETECT
extern void __init sld_setup(struct cpuinfo_x86 *c);
extern bool handle_user_split_lock(struct pt_regs *regs, long error_code);
extern bool handle_guest_split_lock(unsigned long ip);
extern void handle_bus_lock(struct pt_regs *regs);
void split_lock_init(void);
void bus_lock_init(void);
#else
static inline void __init sld_setup(struct cpuinfo_x86 *c) {}
static inline bool handle_user_split_lock(struct pt_regs *regs, long error_code)
{
	return false;
}

static inline bool handle_guest_split_lock(unsigned long ip)
{
	return false;
}

static inline void handle_bus_lock(struct pt_regs *regs) {}
static inline void split_lock_init(void) {}
static inline void bus_lock_init(void) {}
#endif

#ifdef CONFIG_IA32_FEAT_CTL
void init_ia32_feat_ctl(struct cpuinfo_x86 *c);
#else
static inline void init_ia32_feat_ctl(struct cpuinfo_x86 *c) {}
#endif

extern __noendbr void cet_disable(void);

struct cpu_signature;

void intel_collect_cpu_info(struct cpu_signature *sig);

extern u64 x86_read_arch_cap_msr(void);
bool intel_find_matching_signature(void *mc, struct cpu_signature *sig);
int intel_microcode_sanity_check(void *mc, bool print_err, int hdr_type);

extern struct cpumask cpus_stop_mask;

#endif /* _ASM_X86_CPU_H */