Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Reexamination Certificate
2006-11-14
2006-11-14
Fleming, Fritz (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Direct memory accessing
C710S023000, C711S001000
Reexamination Certificate
active
07136943
ABSTRACT:
A method, apparatus and computer instructions for storing data relating to the switch in a context switch history containing a number of prior context switches occurring prior to a current context. The storing of data occurs in response to a change in context for a direct memory access resource. Portions of the direct memory access chain of requests are freed using the context switch history to form freed portions, wherein the freed portions are reused for requests.
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Kuo Wei
Pafumi James A.
Stelzer Robert Paul
Dawkins Marilyn Smith
Fleming Fritz
Garg Rakesh
Unelus Ernest
Yee Duke W.
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