Prefetch with request for ownership without data

A method performed by a processor is described. The method includes executing an instruction. The instruction has an address as an operand. The executing of the instruction includes sending a signal to cache coherence protocol logic of the processor. In response to the signal, the cache coherence pr...

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Bibliographische Detailangaben
Hauptverfasser: Wu Lisa K, Forsyth Andrew T, Sundararaman Ramacharan, Chrysos George Z, Corbal Jesus
Format: Patent
Sprache:eng
Schlagworte:
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Zusammenfassung:A method performed by a processor is described. The method includes executing an instruction. The instruction has an address as an operand. The executing of the instruction includes sending a signal to cache coherence protocol logic of the processor. In response to the signal, the cache coherence protocol logic issues a request for ownership of a cache line at the address. The cache line is not in a cache of the processor. The request for ownership also indicates that the cache line is not to be sent to the processor.