Contributors: 14
Author Tokens Token Proportion Commits Commit Proportion
Peter Zijlstra 78 24.00% 1 5.26%
Fenghua Yu 46 14.15% 3 15.79%
Linus Torvalds 43 13.23% 1 5.26%
Borislav Petkov 36 11.08% 2 10.53%
Jaswinder Singh Rajput 36 11.08% 3 15.79%
Sean Christopherson 27 8.31% 1 5.26%
Thomas Gleixner 23 7.08% 1 5.26%
Ricardo Neri 18 5.54% 1 5.26%
Vitaly Kuznetsov 7 2.15% 1 5.26%
H. Peter Anvin 3 0.92% 1 5.26%
Zwane Mwaikambo 3 0.92% 1 5.26%
Alexander van Heukelum 3 0.92% 1 5.26%
Greg Kroah-Hartman 1 0.31% 1 5.26%
Mike Travis 1 0.31% 1 5.26%
Total 325 19 


/* 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>

#ifdef CONFIG_SMP

extern void prefill_possible_map(void);

#else /* CONFIG_SMP */

static inline void prefill_possible_map(void) {}

#define cpu_physical_id(cpu)			boot_cpu_physical_apicid
#define cpu_acpi_id(cpu)			0
#define safe_smp_processor_id()			0

#endif /* CONFIG_SMP */

struct x86_cpu {
	struct cpu cpu;
};

#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
extern void start_cpu0(void);
#ifdef CONFIG_DEBUG_HOTPLUG_CPU0
extern int _debug_hotplug_cpu(int cpu, int action);
#endif
#endif

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_CPU_SUP_INTEL
extern void __init sld_setup(struct cpuinfo_x86 *c);
extern void switch_to_sld(unsigned long tifn);
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);
u8 get_this_hybrid_cpu_type(void);
#else
static inline void __init sld_setup(struct cpuinfo_x86 *c) {}
static inline void switch_to_sld(unsigned long tifn) {}
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 u8 get_this_hybrid_cpu_type(void)
{
	return 0;
}
#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
#endif /* _ASM_X86_CPU_H */