arch/arm/mach-vexpress/include/mach/smp.h


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#ifndef __MACH_SMP_H
#define __MACH_SMP_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(const struct cpumask *mask)
{
	gic_raise_softirq(mask, 1);
}
#endif