Contributors: 28
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Glauber de Oliveira Costa |
328 |
40.15% |
19 |
33.33% |
| Alex Nixon |
112 |
13.71% |
3 |
5.26% |
| Thomas Gleixner |
41 |
5.02% |
5 |
8.77% |
| Yi Wang |
38 |
4.65% |
1 |
1.75% |
| Borislav Petkov |
38 |
4.65% |
1 |
1.75% |
| Jens Axboe |
33 |
4.04% |
1 |
1.75% |
| Yinghai Lu |
24 |
2.94% |
1 |
1.75% |
| Dou Liyang |
24 |
2.94% |
1 |
1.75% |
| Alok N Kataria |
23 |
2.82% |
1 |
1.75% |
| Tejun Heo |
19 |
2.33% |
2 |
3.51% |
| Don Zickus |
19 |
2.33% |
1 |
1.75% |
| Vitaly Kuznetsov |
14 |
1.71% |
1 |
1.75% |
| Boris Ostrovsky |
12 |
1.47% |
1 |
1.75% |
| Mike Travis |
11 |
1.35% |
3 |
5.26% |
| Hidehiro Kawai |
9 |
1.10% |
1 |
1.75% |
| Jaswinder Singh Rajput |
9 |
1.10% |
2 |
3.51% |
| Vladislav Zolotarov |
8 |
0.98% |
1 |
1.75% |
| Paul E. McKenney |
8 |
0.98% |
1 |
1.75% |
| Rusty Russell |
7 |
0.86% |
2 |
3.51% |
| Len Brown |
7 |
0.86% |
1 |
1.75% |
| Prarit Bhargava |
6 |
0.73% |
1 |
1.75% |
| Fenghua Yu |
6 |
0.73% |
1 |
1.75% |
| Rafael J. Wysocki |
6 |
0.73% |
1 |
1.75% |
| Peter Zijlstra |
6 |
0.73% |
1 |
1.75% |
| Alexey Y. Starikovskiy |
4 |
0.49% |
1 |
1.75% |
| H. Peter Anvin |
3 |
0.37% |
1 |
1.75% |
| Chuck Ebbert |
1 |
0.12% |
1 |
1.75% |
| Greg Kroah-Hartman |
1 |
0.12% |
1 |
1.75% |
| Total |
817 |
|
57 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SMP_H
#define _ASM_X86_SMP_H
#ifndef __ASSEMBLY__
#include <linux/cpumask.h>
#include <asm/percpu.h>
#include <asm/thread_info.h>
#include <asm/cpumask.h>
extern int smp_num_siblings;
extern unsigned int num_processors;
DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_sibling_map);
DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_die_map);
/* cpus sharing the last level cache: */
DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
static inline struct cpumask *cpu_llc_shared_mask(int cpu)
{
return per_cpu(cpu_llc_shared_map, cpu);
}
DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_cpu_to_apicid);
DECLARE_EARLY_PER_CPU_READ_MOSTLY(u32, x86_cpu_to_acpiid);
DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_bios_cpu_apicid);
#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_32)
DECLARE_EARLY_PER_CPU_READ_MOSTLY(int, x86_cpu_to_logical_apicid);
#endif
struct task_struct;
struct smp_ops {
void (*smp_prepare_boot_cpu)(void);
void (*smp_prepare_cpus)(unsigned max_cpus);
void (*smp_cpus_done)(unsigned max_cpus);
void (*stop_other_cpus)(int wait);
void (*crash_stop_other_cpus)(void);
void (*smp_send_reschedule)(int cpu);
int (*cpu_up)(unsigned cpu, struct task_struct *tidle);
int (*cpu_disable)(void);
void (*cpu_die)(unsigned int cpu);
void (*play_dead)(void);
void (*send_call_func_ipi)(const struct cpumask *mask);
void (*send_call_func_single_ipi)(int cpu);
};
/* Globals due to paravirt */
extern void set_cpu_sibling_map(int cpu);
#ifdef CONFIG_SMP
extern struct smp_ops smp_ops;
static inline void smp_send_stop(void)
{
smp_ops.stop_other_cpus(0);
}
static inline void stop_other_cpus(void)
{
smp_ops.stop_other_cpus(1);
}
static inline void smp_prepare_boot_cpu(void)
{
smp_ops.smp_prepare_boot_cpu();
}
static inline void smp_prepare_cpus(unsigned int max_cpus)
{
smp_ops.smp_prepare_cpus(max_cpus);
}
static inline void smp_cpus_done(unsigned int max_cpus)
{
smp_ops.smp_cpus_done(max_cpus);
}
static inline int __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
return smp_ops.cpu_up(cpu, tidle);
}
static inline int __cpu_disable(void)
{
return smp_ops.cpu_disable();
}
static inline void __cpu_die(unsigned int cpu)
{
smp_ops.cpu_die(cpu);
}
static inline void play_dead(void)
{
smp_ops.play_dead();
}
static inline void smp_send_reschedule(int cpu)
{
smp_ops.smp_send_reschedule(cpu);
}
static inline void arch_send_call_function_single_ipi(int cpu)
{
smp_ops.send_call_func_single_ipi(cpu);
}
static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
smp_ops.send_call_func_ipi(mask);
}
void cpu_disable_common(void);
void native_smp_prepare_boot_cpu(void);
void native_smp_prepare_cpus(unsigned int max_cpus);
void calculate_max_logical_packages(void);
void native_smp_cpus_done(unsigned int max_cpus);
int common_cpu_up(unsigned int cpunum, struct task_struct *tidle);
int native_cpu_up(unsigned int cpunum, struct task_struct *tidle);
int native_cpu_disable(void);
int common_cpu_die(unsigned int cpu);
void native_cpu_die(unsigned int cpu);
void hlt_play_dead(void);
void native_play_dead(void);
void play_dead_common(void);
void wbinvd_on_cpu(int cpu);
int wbinvd_on_all_cpus(void);
void native_smp_send_reschedule(int cpu);
void native_send_call_func_ipi(const struct cpumask *mask);
void native_send_call_func_single_ipi(int cpu);
void x86_idle_thread_init(unsigned int cpu, struct task_struct *idle);
void smp_store_boot_cpu_info(void);
void smp_store_cpu_info(int id);
asmlinkage __visible void smp_reboot_interrupt(void);
__visible void smp_reschedule_interrupt(struct pt_regs *regs);
__visible void smp_call_function_interrupt(struct pt_regs *regs);
__visible void smp_call_function_single_interrupt(struct pt_regs *r);
#define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu)
#define cpu_acpi_id(cpu) per_cpu(x86_cpu_to_acpiid, cpu)
/*
* This function is needed by all SMP systems. It must _always_ be valid
* from the initial startup. We map APIC_BASE very early in page_setup(),
* so this is correct in the x86 case.
*/
#define raw_smp_processor_id() this_cpu_read(cpu_number)
#define __smp_processor_id() __this_cpu_read(cpu_number)
#ifdef CONFIG_X86_32
extern int safe_smp_processor_id(void);
#else
# define safe_smp_processor_id() smp_processor_id()
#endif
#else /* !CONFIG_SMP */
#define wbinvd_on_cpu(cpu) wbinvd()
static inline int wbinvd_on_all_cpus(void)
{
wbinvd();
return 0;
}
#endif /* CONFIG_SMP */
extern unsigned disabled_cpus;
#ifdef CONFIG_X86_LOCAL_APIC
extern int hard_smp_processor_id(void);
#else /* CONFIG_X86_LOCAL_APIC */
#define hard_smp_processor_id() 0
#endif /* CONFIG_X86_LOCAL_APIC */
#ifdef CONFIG_DEBUG_NMI_SELFTEST
extern void nmi_selftest(void);
#else
#define nmi_selftest() do { } while (0)
#endif
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_SMP_H */