For Contex-A72, There are 4 cores for each Arm Cortex-A72.And each core has a private PMU unit which counts events from its point of view. So there are 4 PMUs for Contex-A72 processor.
I want to get the count of every PMU. How can I get it ?
A pharos measurement unit (PMU) is a device used to estimate the magnitude and phase angle of an electrical pharos quantity (such as voltage or current) in the electricity grid using a common time source for synchronization .
Thank you !
PMU means Performance Monitor Unit for this case.
In AXI3 this could occur in both read and write transactions, but in AXI4 this is not supported for write transactions. "Out of order" simply means that the transactions can end in a different order to that they were requested by the master !
l1223706 said:I want to get the count of every PMU. How can I get it ?
AFAIK only the local core (or a debug unit) can read the local PMU registers.