CRn_shift 38 arch/arm64/include/asm/sysreg.h ((crn) << CRn_shift) | ((crm) << CRm_shift) | \ CRn_shift 45 arch/arm64/include/asm/sysreg.h #define sys_reg_CRn(id) (((id) >> CRn_shift) & CRn_mask)