Tag: multicore

U-boot to load two images on separate cores

linux linux-kernel multicore symmetric u-boot

I have NXP/Free-scale Imx6 sabre lite development board. My task is to flash two OS kernels (Linux and RTOS)in such a way that linux runs on core0 and RTOS on core1. I have 1GB DDR3 in which i have to allocate first 128MB for RTOS and rest for LINUX image. How to configure U-boot in this case? core-0 should load

rdtsc accuracy across CPU cores

linux multicore rdtsc

I am sending network packets from one thread and receiving replies on a 2nd thread that runs on a different CPU core. My process measures the time between send & receive of each packet (similar to ping). I am using rdtsc for getting high-resolution, low-overhead timing, which is needed by my implementation. All measurments looks reliable. Still, I am worried