Hi all,
When reading the ARMv8 reference manual, it mentions a concept of PoU. My understanding is that, if the every CPU core in a cluster has its own L1 cache, and all clusters share an L2 cache, then the PoU is L2 cache.
1. Is my understanding is correct?
2. If we execute a cache maintenance instruction to clean cache to PoU, does it mean that all the L1 caches in the same cluster as the PEe will be cleaned to L2 and the L2 cache will not be cleaned?
Any help will be appreciated.
BR
Thanks.
Hi Martin, Thanks for your answer, and it really helps.