ACCELERATOR MEMORY COHERENCY WITH SINGLE STATE MACHINE

A claw-back request, received from an accelerator, is issued for an address line. While waiting for a response to the claw-back request, a cast-out push request with a matching address line is received. The cast-out push request is associated with a cache having a modified copy of the address line....

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Bibliographische Detailangaben
Hauptverfasser: Williams, Derek E, Irish, John D, Valk, Kenneth M, Guthrie, Guy L, Siegel, Michael S
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A claw-back request, received from an accelerator, is issued for an address line. While waiting for a response to the claw-back request, a cast-out push request with a matching address line is received. The cast-out push request is associated with a cache having a modified copy of the address line. A combined-response, associated with the cast-out push request, is received from a bus. Data associated with the modified copy of the address line is received from the cache. A claw-back response, with the data associated with the modified version of the address line, is issued to an accelerator.