Prefetch store filtering
US12141069B2 · kind B2 · utility
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1References
13Claims
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Assignee
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Key dates
| Filing date | Dec 28, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Jan 11, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/6024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing apparatus is provided. Prefetch circuitry generates a prefetch request for a cache line prior to the cache line being explicitly requested. The cache line is predicted to be required for a store operation in the future. Issuing circuitry issues the prefetch request to a memory hierarchy and filter circuitry filters the prefetch request based on at least one other prefetch request made to the cache line, to control whether the prefetch request is issued by the issuing circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.