ID_AA64MMFR3_MEC_SHIFT
#define ID_AA64MMFR3_MEC_MASK (UL(0xf) << ID_AA64MMFR3_MEC_SHIFT)
#define ID_AA64MMFR3_MEC_NONE (UL(0x0) << ID_AA64MMFR3_MEC_SHIFT)
#define ID_AA64MMFR3_MEC_IMPL (UL(0x1) << ID_AA64MMFR3_MEC_SHIFT)