smp.h (1212B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ASM_SMP_H 3#define __ASM_SMP_H 4 5extern int init_per_cpu(int cpuid); 6 7#if defined(CONFIG_SMP) 8 9/* Page Zero Location PDC will look for the address to branch to when we poke 10** slave CPUs still in "Icache loop". 11*/ 12#define PDC_OS_BOOT_RENDEZVOUS 0x10 13#define PDC_OS_BOOT_RENDEZVOUS_HI 0x28 14 15#ifndef ASSEMBLY 16#include <linux/bitops.h> 17#include <linux/threads.h> /* for NR_CPUS */ 18#include <linux/cpumask.h> 19typedef unsigned long address_t; 20 21 22/* 23 * Private routines/data 24 * 25 * physical and logical are equivalent until we support CPU hotplug. 26 */ 27#define cpu_number_map(cpu) (cpu) 28#define cpu_logical_map(cpu) (cpu) 29 30extern void smp_send_all_nop(void); 31 32extern void arch_send_call_function_single_ipi(int cpu); 33extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); 34 35#define raw_smp_processor_id() (current_thread_info()->cpu) 36 37#endif /* !ASSEMBLY */ 38 39#else /* CONFIG_SMP */ 40 41static inline void smp_send_all_nop(void) { return; } 42 43#endif 44 45#define NO_PROC_ID 0xFF /* No processor magic marker */ 46#define ANY_PROC_ID 0xFF /* Any processor magic marker */ 47int __cpu_disable(void); 48void __cpu_die(unsigned int cpu); 49 50#endif /* __ASM_SMP_H */