Multiple priority accelerated graphics port (AGP) request queue
US6000001A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Sep 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A single queuing structure enqueues requests of multiple priorities. The queuing structure is especially well adapted for use with requests that are part of AGP operations. For instance, the queuing structure may enqueue low priority read/flush requests, high priority read/flush requests, low priority write requests, and high priority write requests. The queuing structure may be logically partitioned into logical sub-queues where each sub-queues is associated with requests of a given type and a given priority. Each of the logical sub-queues may be configured to operate in a first-in-first-out (FIFO) fashion. Separate pointers may be maintained for identifying the bottom of each of the logical sub-queues within the single queuing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.