Is their any way to stop IPI calls in jestson Tx board?

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi,

I am working on jetson Tx2 board from past few days, it contains 6 cpu cores(cpu1 & cpu2 are denver cores). i am trying to shutdown one of a57 cpu core once the system boot-up. but in that time it automatically triggers IPI calls and it crash the board. is their any way to stop the IPI calls please suggest me.
2

Hi ashok515kumar,

Why do you need to shutdown one of a57 cpu core once the system boot-up? Any special use case?

Thanks

3

Hi,

I am running jailhouse on top of jetson Tx2 board, In jailhouse module sometimes i need to shutdown cpu and use this cpu for other purposes.

Thanks
Ashok

4

Which A57 core are you trying to shut down? Core 0 is A57 and must be on at all times; it cannot be turned off because that’s where interrupts are routed and, I think, it’s the core that has GPIO access.
Not sure if this will let you get where you need to go, but hope it helps.