Processing ordered data requests to a memory
US6725339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Mar 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0855
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for requesting data from a memory. The method includes issuing a plurality of data requests to a data request port for the memory. The plurality of data requests includes at least two ordered data requests. The method includes determining if an earlier one of the ordered data requests corresponds to a miss in the memory, and converting a later one of the ordered data requests to a prefetch in response to the earlier one of the ordered data requests corresponding to a miss in the memory. An apparatus includes a memory having at least one pipelined port for receiving data requests. The port is adapted to determine whether an earlier ordered one of the data requests corresponds to a miss in the memory. The port converts a later ordered one of the data requests to a prefetch in response to determining that the earlier ordered one of the data requests corresponds to a miss in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.