Questions about Generic Timer in ARMv8

When two clusters(Big/Little) exist in SoC, the timer can be used to support Synchronization between two clusters. But How to understand " Synchronization ", anybody can tell me some typical application...
Generic Timer - Is it optional?

Hi all, The generic timer feature is provided in the V8 manual. Is it optional like GIC or it will be available with processor IP by default like cache, MPU features. Is it operates on CPU clock or it...
Generic Timer in Cortex A-53

What is the input & output of system counter? What is it's purpose? How to start/stop it? What is the input & output of Physical counter? What is it's purpose? How to start/stop it? What are the...
When the generic timer starts to tick?

Hi all, When does the generic timer in ARMv7 start to tick? I am sure that I've configured properly, but both CNTVCT and CNTPCT do not start to increase. What am I missing?
How to use generic timer/counter

The technical reference manual states that the Cortex-A57 generic timer events are not affected by CPU clock frequency change. My challenge is that I can't use any built in linux libraries to create a...