Method of updating cache state information where stores only read the cache state information upon entering the queue
US7302530B2 · kind B2 · utility
8Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2004 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Nov 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method of updating the cache state information for store transactions in an system in which store transactions only read the cache state information upon entering the unit pipe or store portion of the store/load queue. In this invention, store transactions in the unit pipe and queue are checked whenever a cache line is modified, and their cache state information updated as necessary. When the modification is an invalidate, the check tests that the two share the same physical addressable location. When the modification is a validate, the check tests that the two involve the same data cache line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.