📄 smp.h
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#ifndef ASMARM_ARCH_SMP_H#define ASMARM_ARCH_SMP_H#include <linux/config.h>#include <asm/hardware/gic.h>#define hard_smp_processor_id() \ ({ \ unsigned int cpunum; \ __asm__("mrc p15, 0, %0, c0, c0, 5" \ : "=r" (cpunum)); \ cpunum &= 0x0F; \ })/* * We use IRQ1 as the IPI */static inline void smp_cross_call(cpumask_t callmap){ gic_raise_softirq(callmap, 1);}/* * Do nothing on MPcore. */static inline void smp_cross_call_done(cpumask_t callmap){}#endif
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