Establishing dependency in a resource retry queue
US10866892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Aug 13, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory cache controller includes a transaction arbiter circuit and a retry queue circuit. The transaction arbiter circuit may determine whether a received memory transaction can currently be processed by a transaction pipeline. The retry queue circuit may queue memory transactions that the transaction arbiter circuit determines cannot be processed by the transaction pipeline. In response to receiving a memory transaction that is a cache management transaction, the retry queue circuit may establish a dependency from the cache management transaction to a previously stored memory transaction in response to a determination that both the previously stored memory transaction and the cache management transaction target a common address. Based on the dependency, the retry queue circuit may initiate a retry, by the transaction pipeline, of one or more of the queued memory transactions in the retry queue circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.