| US 7,502,892 B2 | ||
| Decoupling request for ownership tag reads from data read operations | ||
| Per H. Hammarlund, Hillsboro, Oreg. (US); and Hermann W. Gartler, Portland, Oreg. (US) | ||
| Assigned to Intel Corporation, Santa Clara, Calif. (US) | ||
| Filed on Dec. 30, 2003, as Appl. No. 10/747,145. | ||
| Prior Publication US 2005/0144398 A1, Jun. 30, 2005 | ||
| Int. Cl. G06F 12/00 (2006.01) | ||
| U.S. Cl. 711—140 [711/138; 711/156] | 29 Claims |
| 10. A method for updating a cache line of a cache comprising:
during operation of a store, examining a tag associated with the cache line, wherein data stored in a data portion of the
cache line in the cache is not accessed; and
updating the cache line during operation of the store without retrieving data stored in a data portion of the cache line in
the cache if, based on the tag, the cache line is in a modified or exclusive state of a cache coherency protocol.
|