METHOD AND APPARATUS TO SAVE AND RESTORE SYSTEM MEMORY MANAGEMENT UNIT (MMU) CONTEXTS

摘要

A wireless mobile device includes a graphic processing unit (GPU) that has a system memory management unit (MMU) for saving and restoring system MMU translation contexts. The system MMU is coupled to a memory and the GPU. The system MMU includes a set of hardware resources. The hardware resources may be context banks, with each of the context banks having a set of hardware registers. The system MMU also includes a hardware controller that is configured to restore a hardware resource associated with an access stream of content issued by an execution thread of the GPU. The associated hardware resource may be restored from the memory into a physical hardware resource when the hardware resource associated with the access stream of content is not stored within one of the hardware resources.

主权项

1. A wireless mobile device, comprising:
a graphic processing unit (GPU); a memory; and a system memory management unit (MMU) coupled to the memory and the GPU, the system MMU comprising: a plurality of hardware resources, and a hardware controller configured to restore a hardware resource associated with an access stream of content issued by an execution thread of the GPU from the memory into a physical hardware resource of the plurality of hardware resources when the hardware resource associated with the access stream of content is not stored within one of the plurality of hardware resources.