minix/kernel/arch/i386/include/arch_smp.h

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#ifndef __SMP_X86_H__
#define __SMP_X86_H__
#include "arch_proto.h" /* K_STACK_SIZE */
#define MAX_NR_INTERRUPT_ENTRIES 128
#define SMP_SCHED_PROC 0xF0
#define SMP_DEQUEUE_PROC 0xF1
#define SMP_CPU_REBOOT 0xF2
#define SMP_CPU_HALT 0xF3
#define SMP_ERROR_INT 0xF4
/* currently only 2 interrupt priority levels are used */
#define SPL0 0x0
#define SPLHI 0xF
#define SMP_IPI_DEST 0
#define SMP_IPI_SELF 1
#define SMP_IPI_TO_ALL 2
#define SMP_IPI_TO_ALL_BUT_SELF 3
#ifndef __ASSEMBLY__
/* returns the current cpu id */
#define cpuid (((u32_t *)(((u32_t)get_stack_frame() + (K_STACK_SIZE - 1)) \
& ~(K_STACK_SIZE - 1)))[-1])
/*
* in case apic or smp is disabled in boot monitor, we need to finish single cpu
* boot using the legacy PIC
*/
#define smp_single_cpu_fallback() do { \
tss_init(0, get_k_stack_top(0)); \
bsp_finish_booting(); \
} while(0)
extern unsigned char cpuid2apicid[CONFIG_MAX_CPUS];
#endif
#endif /* __SMP_X86_H__ */