Apparatus and method for combining writes to I/O
US7206865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Dec 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4027
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for outbound I/O write-combining are described. In one embodiment the method includes the detection of a write transaction request directed to an I/O device. Once detected, it is determined whether an address associated with the detected write transaction falls within a predetermined write-combinable range of the memory mapped I/O space assigned to the I/O device. When the transaction address falls within a write-combinable range, data associated with the detected write transaction is stored within a buffer corresponding to the transaction address. Accordingly, one embodiment of the present invention provides write-combining for data written to an I/O port associated with a memory mapped I/O address space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.