Using group page fault descriptors to handle context switches and process terminations in graphics processors
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United States of America Patent
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Jul 19, 2016
Grant Date -
Feb 5, 2015
app pub date -
Aug 5, 2013
filing date -
Aug 5, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems may provide for detecting an end of execution of a process on a graphics processor and providing a group page fault descriptor to a page miss handler of an operating system (OS) in response to the end of execution of the process, wherein the group page fault descriptor may indicate to the page miss handler that no further page fault requests will be generated by the graphics processor until one or more outstanding page fault requests are satisfied. Additionally, a response to the group page fault descriptor may be received from the page miss handler. In one example, a process identifier is incorporated into the group page fault descriptor, wherein the process identifier is shared by the group page fault descriptor and the one or more outstanding page fault requests.
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