android_kernel_xiaomi_sm8350/include/asm-arm/arch-realview/smp.h
Russell King 862184fe01 [ARM SMP] Add Realview MPcore SMP support
Add SMP support for the MPcore tile fitted to the Realview ARM
platform.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-07 21:05:42 +00:00

32 lines
502 B
C

#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