Re: [PATCH] arm_mpam: Only program MATCH_PMG when the monitor supports it

[Ping Li]

Hi Ben,

Apologies for raising this directly on the list - hardware questions
like this should go to support@xxxxxxx first.

To answer your question: our memory controller is still at the FPGA
stage. It has 32 PARTIDs but no PMG. After talking with our hardware
team and reading the specification, I had wrongly assumed this design
was legitimate. Our intended usage was one control group in resctrl
with no further monitor groups underneath, so the PARTID-only
monitoring would have been sufficient for us.

I will get our hardware team to review the RTL with Arm support, and
will drop this patch.

Sorry for the noise, and thanks for the pointers.

Ping