• ARM cortex A53 PMU read from another core
    Hello. I would like to ask if it is possible to read the PMU of core0 from core1. So far i have work with an one core CPU and i use the MRS, MSR instructions to set the PMU. How to enable the PMUs...
  • ARM cortex A53 PMU read from another core
    Hello. I would like to ask if it is possible to read the PMU of core0 from core1. So far i have work with an one core CPU and i use the MRS, MSR instructions to set the PMU. How to enable the PMUs...
  • Cortex-A53 PMU: Read Allocate Mode Event Definition (BUS_ACCESS erratum work-around)
    Hello everyone, I am trying to count bus accesses from all 4 cores simultaneously. Since the BUS_ACCESS (0x19) event is not counted properly, I tried to approximate the count by adding other events...
  • A53 Cycle Count Using PMU
    Hello, I'm trying to count the number of CPU cycles on my A53 core using PMU_CCNTR. I tried enabling the PMU using DEMCR->TRCENA bit, the writes to this register seem to halt the execution of my code...
  • A53 Cycle Count Using PMU
    Hello, I'm trying to count the number of CPU cycles on my A53 core using PMU_CCNTR. I tried enabling the PMU using DEMCR->TRCENA bit, the writes to this register seem to halt the execution of my code...