GICD_IIDR_IMPLEMENTER_SHIFT   64 include/linux/irqchip/arm-gic-v3.h #define GICD_IIDR_IMPLEMENTER_SHIFT	0
GICD_IIDR_IMPLEMENTER_SHIFT   66 include/linux/irqchip/arm-gic.h #define GICD_IIDR_IMPLEMENTER_SHIFT	0