SYSTEM AND METHOD FOR REPORTING CACHE COHERENCY STATE RETAINED WITHIN A CACHE HIERARCHY OF A PROCESSING NODE

摘要

A coherency state of a coherency granule is determined for each of a plurality of caches of a processor of a multiple-processor system to generate a plurality of coherency states in response to receiving a memory transaction request associated with the coherency granule at the processor. A coherency state of the coherency granule retained at the processor subsequent to the memory transaction request is determined based on the plurality of coherency states and an indicator representative of the coherency state of the coherency granule retained at the processor is provided for receipt by a cache coherency directory.