How to distribute single one SPI to multi PE concurrently in GIC-600 ?

hello there,

I have a 1 cluster 4 cores SOC, the cores are all Cortex-A55. And a GIC-600 with it.
In my application, Run AMP applicaiton on it, 1 core for baremetal and other cores for linux.

There is one EINT on GPIO, which provides a precise signal of synchronization on whole board.
I wish the EINT can interrupt 2 AMP subsys concurrently.

I found that the IRQ affinity settings are like A.B.C.D in GIC-600, which have 4 dimensions and only one target finally. (Is it?)
in another working mode of GIC-600, it can automatically select one appropriate PE in the group for handling the IRQ. (Is it?)

I cannot find the way of distributing IRQ to multi PEs concurrently.

Thanks for your guide,
Lin.Duan

Jan 4, 2025