Using group page fault descriptors to handle context switches and process terminations in graphics processors

摘要

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.

主权项

1. A system comprising:
a display to visually present content associated with a process; a host processor to execute an operating system (OS); and a graphics processor including,
a monitor to detect an end of execution of the process on the graphics processor,a descriptor module to provide a group page fault descriptor to a page miss handler of the OS in response to a context switch, wherein the group page fault descriptor is to indicate to the page miss handler that no further page fault requests will be generated until one or more outstanding page fault requests are satisfied, anda response module to receive a response to the group page fault descriptor from the page miss handler.