Data coherency manager with mapping between physical and virtual address spaces
US11914514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2021 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Aug 11, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A coherency manager for receiving snoop requests addressed in a physical address space, the snoop requests relating to a cache memory addressable using a virtual address space, the cache memory having a plurality of coherent cachelines, the coherency manager comprising: a reverse translation module configured to maintain a mapping from physical addresses to virtual addresses for each coherent cacheline held in the cache memory; and a snoop processor configured to: receive a snoop request relating to a physical address; in response to the received snoop request, determine whether the physical address is mapped to a virtual address in the reverse translation module; and process the snoop request in dependence on that determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.