GICD_IIDR_REVISION_SHIFT   66 include/linux/irqchip/arm-gic-v3.h #define GICD_IIDR_REVISION_SHIFT	12
GICD_IIDR_REVISION_SHIFT   68 include/linux/irqchip/arm-gic.h #define GICD_IIDR_REVISION_SHIFT	12