90-day report and TM30 are two different things. When you enter the Kingdom with a visa, you need to do a TM30. Every time you come back to the Kingdom on the same visa, of which you will have to extend every year, you will have to report back to the immigration office with your passport.
As for 90-day report, that means you have to report yourself IF you stay in the Kingdom continuously for 90 days. You will report to the same immigration office but different section.