source: branches/RWT/modules/vci_cc_vcache_wrapper/caba/source/src/vci_cc_vcache_wrapper.cpp @ 645

Last change on this file since 645 was 645, checked in by devigne, 8 years ago

Invalidation from memcache on a non-coherent line can cause a cleanup_data.
While sending this cleanup the processor can do a write on the same line.
However there is no guarantee that the memcache will receive transactions in
the correct order, ie it can handle writing before cleanup and therefore
overwrite the new value of writing that is more current than the data contained
in the cleanup.
To solve this problem we have block writes to ZOMBIE lines, they are unlocked
when the line becomes EMPTY.

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