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  • is it necessary for ARM-v8 soc to flush L2 cache to DRAM ?

    hi :

    I know , we can flush L1 I/D cache items to PoU with kernel interface(flush_cache_*).

    however, I can not find any clue about flushing L2 cache to DRAM(if without L3). 

    and I saw some points that L2 flushing was not needed.

    for ARMv8,  how can…