Enhanced direct memory access
US8949569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jul 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0891
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for facilitating direct memory access in a computing system in response to a request to transfer data is provided. The method comprises selecting a thread for transferring the data, wherein the thread executes on a processing core within the computing system; providing the thread with the request, wherein the request comprises information for carrying out a data transfer; and transferring the data according to the request. The method may further comprise: coordinating the request with a memory management unit, such that virtual addresses may be used to transfer data; invalidating a cache line associated with the source address or flushing a cache line associated with the destination address, if requested. Multiple threads can be selected to transfer data based on their proximity to the destination address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.