Hello,
I'm reading ARMv7 architecture reference manual and there are the following keywords:
It looks like that outer/inner cacheable means that a region of memory can be cached in L1 (inner) or L2 (outer).
What I don't understand is the sharability.
According to the manual, it says inner is sharable inside a cluster and outer is sharable among clusters.
Here, what does cluster mean? It looks like a group of cores, but I'm failed to find exact reference about these.
Any help would be appreciated.