What registers set the a72, gpu and c7x priority value. In cptracer it looks like a72 and GPU trans.priority are 7 and c7x is 2.
This is related to this post but that was never answered. https://e2e.ti.com/support/processors-group/processors/f/processors-forum/989812/processor-sdk-j721e-qos-for-ddr-accesses?tisearch=e2e-sitesearch&keymatch=tda4vm%20qos#