ID_AA64ISAR1_GPI_SHIFT
#define ID_AA64ISAR1_GPI_MASK (0xf << ID_AA64ISAR1_GPI_SHIFT)
#define ID_AA64ISAR1_GPI_NONE (0x0 << ID_AA64ISAR1_GPI_SHIFT)
#define ID_AA64ISAR1_GPI_IMPL (0x1 << ID_AA64ISAR1_GPI_SHIFT)