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shareability memory attribute

hostia

Hi ARM experts,

    For shareability attribute, have some confusions:

    1 For a memory location with cacheability attribute, does hardware do "flush" action after "writing" to push data to end if shareability attribute is also set. Otherwise, how to ensure the coherence between various agents wthin shareable domain;

    2 If the memory location isn't cacheable, is there any difference for a memory location with shareability or non shareability?

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