arch/sparc/include/asm/smp_64.h

Source file repositories/reference/linux-study-clean/arch/sparc/include/asm/smp_64.h

File Facts

System
Linux kernel
Corpus path
arch/sparc/include/asm/smp_64.h
Extension
.h
Size
1806 bytes
Lines
85
Domain
Architecture Layer
Bucket
arch/sparc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _SPARC64_SMP_H
#define _SPARC64_SMP_H

#include <linux/threads.h>
#include <asm/asi.h>
#include <asm/starfire.h>
#include <asm/spitfire.h>

#ifndef __ASSEMBLER__

#include <linux/cpumask.h>
#include <linux/cache.h>

#endif /* !(__ASSEMBLER__) */

#ifdef CONFIG_SMP

#ifndef __ASSEMBLER__

/*
 *	Private routines/data
 */

#include <linux/bitops.h>
#include <linux/atomic.h>
#include <asm/percpu.h>

DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
extern cpumask_t cpu_core_map[NR_CPUS];

void smp_init_cpu_poke(void);
void scheduler_poke(void);

void arch_send_call_function_single_ipi(int cpu);
void arch_send_call_function_ipi_mask(const struct cpumask *mask);

/*
 *	General functions that each host system must provide.
 */

int hard_smp_processor_id(void);
#define raw_smp_processor_id() (current_thread_info()->cpu)

void smp_fill_in_sib_core_maps(void);
void __noreturn cpu_play_dead(void);

void smp_fetch_global_regs(void);
void smp_fetch_global_pmu(void);

struct seq_file;
void smp_bogo(struct seq_file *);
void smp_info(struct seq_file *);

void smp_callin(void);
void cpu_panic(void);
void smp_synchronize_tick_client(void);
void smp_capture(void);
void smp_release(void);

#ifdef CONFIG_HOTPLUG_CPU
int __cpu_disable(void);
void __cpu_die(unsigned int cpu);
#endif

#endif /* !(__ASSEMBLER__) */

#else

#define hard_smp_processor_id()		0
#define smp_fill_in_sib_core_maps() do { } while (0)
#define smp_fetch_global_regs() do { } while (0)
#define smp_fetch_global_pmu() do { } while (0)
#define smp_init_cpu_poke() do { } while (0)
#define scheduler_poke() do { } while (0)

#endif /* !(CONFIG_SMP) */

#endif /* !(_SPARC64_SMP_H) */

Annotation

Implementation Notes