Generic Interrupt Controller Usage

Hi,

I am trying to set up an interrupt mechanism on Agilex-7 Soc Dev Kit DK-DEV-AGF014EA. I enabled the Received Data Available interrupt on uart0 peripheral but I don't understand how to catch it and register the IRO to an ISR. The uart0_IRQ's GIC interrupt number is 140. Could you please help me about that? 

Best Regards,

Balerion