Missing CoreSight components in /renensas/r8a77970.dtsi

Hi, Currently I am working on the Coresight TPIU and STM(sytem trace macrocell ) driver. The source code for the drivers are also provided at /build/tmp/work-shared/v3msk/kernel-source/hwtracing/core...
Missing CoreSight components in /renensas/r8a77970.dtsi

Hi, Currently I am working on the Coresight TPIU and STM(sytem trace macrocell ) driver. The source code for the drivers are also provided at /build/tmp/work-shared/v3msk/kernel-source/hwtracing/core...
How to find coresight components on cortex-a55?

Hi, I have a cortex-a55 chip running Linux, and I want to add software drivers for coresight. But some problems were encountered: 1. Does it means that there are no coresight support when ID_AA64DFR0_EL1...
Turn off all optimizations?

I was following a tutorial that was showing how the ARM processor worked and it used a main like this: int main() { int counter = 0; ++counter; ++counter; ++counter; ++counter; return 0; ...
turn off the optimizer

I have two subroutines with exactly same content but different names. I want them to be located in different addresses. I don't want the two subroutines to share same code, and I set the optimizer...