Apparatus and method for communicating between a central processing unit and a graphics processing unit

The present invention provides an improved technique for communicating between a central processing unit and a graphics processing unit of a data processing apparatus. Shared memory is provided which is accessible by the central processing unit and the graphics processing unit, and via which data st...

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Bibliographic Details
Main Authors FORD SIMON ANDREW, ELLIS SEAN TRISTRAM, PLOWMAN EDWARD CHARLES
Format Patent
LanguageChinese
English
Published 10.03.2010
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The present invention provides an improved technique for communicating between a central processing unit and a graphics processing unit of a data processing apparatus. Shared memory is provided which is accessible by the central processing unit and the graphics processing unit, and via which data structures are shareable between the central processing unit and the graphics processing unit. A bus is also provided via which the central processing unit, graphics processing unit and shared memory communicate. In accordance with a first mechanism of controlling the graphics processing unit, the central processing unit routes control signals via the bus. However, in addition, an interface is provided between the central processing unit and the graphics processing unit, and in accordance with anadditional mechanism for controlling the graphics processing unit, the central processing unit provides control signals over the interface. This enables the GPU to continue to be used to handle largebatches of graphics proces
Bibliography:Application Number: CN200910166643