32 lines
708 B
C
32 lines
708 B
C
#ifndef __SMP_X86_H__
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#define __SMP_X86_H__
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#include "arch_proto.h" /* K_STACK_SIZE */
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#define MAX_NR_INTERRUPT_ENTRIES 128
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#ifndef __ASSEMBLY__
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/* returns the current cpu id */
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#define cpuid (((u32_t *)(((u32_t)get_stack_frame() + (K_STACK_SIZE - 1)) \
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& ~(K_STACK_SIZE - 1)))[-1])
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/*
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* in case apic or smp is disabled in boot monitor, we need to finish single cpu
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* boot using the legacy PIC
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*/
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#define smp_single_cpu_fallback() do { \
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tss_init(0, get_k_stack_top(0)); \
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bsp_cpu_id = 0; \
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ncpus = 1; \
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bsp_finish_booting(); \
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} while(0)
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extern unsigned char cpuid2apicid[CONFIG_MAX_CPUS];
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#define barrier() do { mfence(); } while(0)
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#endif
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#endif /* __SMP_X86_H__ */
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