SPARC64_NSEC_PER_CYC_SHIFT
quotient = clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
ops->offset = (tick * quotient) >> SPARC64_NSEC_PER_CYC_SHIFT;
return ((get_tick() * quotient) >> SPARC64_NSEC_PER_CYC_SHIFT) - offset;