Abstract: A portable computing device synchronously offloads tasks from a first processing resource to an alternative processing resource. Offload requests are centralized and communicated to a dispatch controller. The request defines the alternative processing resource and the location of items in a common or shared memory related to a thread that is desired to be transferred or dispatched from the primary processing resource to the identified alternative processing resource. The dispatch controller, in response to the request, creates a task dispatch packet that provides the information required to switch the context of the thread that was previously executing on the primary processing resource to the alternative processing resource. The common or shared memory space is leveraged to provide desired performance. Results generated by the alternative processing resource are available in the shared memory space upon return to the primary processing resource.

Abstract: A method and system includes generating a cache entry comprising cache line data for a plurality of cache clients and receiving a cache invalidate instruction from a first of the plurality of cache clients. In response to the cache invalidate instruction, the data valid/invalid state is changed for the first cache client to an invalid state without modifying the data valid/invalid state for the other of the plurality of cache clients from the valid state. A read instruction may be received from a second of the plurality of cache clients and in response to the read instruction, a value stored in the cache line data is returned to the second cache client while the data valid/invalid state for the first cache client is in the invalid state and the data valid/invalid state for the second cache client is in the valid state.

Abstract: A portable computing device synchronously offloads tasks from a first processing resource to an alternative processing resource. Offload requests are centralized and communicated to a dispatch controller. The request defines the alternative processing resource and the location of items in a common or shared memory related to a thread that is desired to be transferred or dispatched from the primary processing resource to the identified alternative processing resource. The dispatch controller, in response to the request, creates a task dispatch packet that provides the information required to switch the context of the thread that was previously executing on the primary processing resource to the alternative processing resource. The common or shared memory space is leveraged to provide desired performance. Results generated by the alternative processing resource are available in the shared memory space upon return to the primary processing resource.