ID_AA64ISAR0_ATOMIC_SHIFT
#define ID_AA64ISAR0_ATOMIC_MASK (0xf << ID_AA64ISAR0_ATOMIC_SHIFT)
#define ID_AA64ISAR0_ATOMIC_NONE (0x0 << ID_AA64ISAR0_ATOMIC_SHIFT)
#define ID_AA64ISAR0_ATOMIC_IMPL (0x2 << ID_AA64ISAR0_ATOMIC_SHIFT)