Cache lock mechanism with speculative allocation
US7266648B2 · kind B2 · utility
10Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2005 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Aug 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0802
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus to speculatively allocate a combinable store request buffer for a cache lock operation by setting an extended lock indicator. The store request buffer is speculatively allocated and the load-lock micro-operation associated with the cache lock operation is sent to a replay loop. During the replay window, conflict detection processing is completed. When the load-lock micro-operation returns from replay, the store buffer is de-allocated if a conflict has been detected during the replay window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.