Thread prefetch mechanism

A method to facilitate data copy operations comprising:

• receiving a command for a copy operation at a copy engine of a graphics processing unit;
• detecting a sequence for the copy operation in which data is written into a memory surface and then copied into a local memory;
• performing a translation lookaside buffer (TLB) prefetch for the copy operation, including checking for page faults;
• and
• upon completion of the TLB prefetch, invoking the copy operation at the copy engine.

A graphics processing system comprising:

• one or more processors including a graphics processing unit to process data, the graphics processing unit including a copy engine and a render engine;
• and
• memory for storage of data;
• wherein the graphics processing unit is to:
• generate rendered data by the render engine;
• receive a command for a copy operation at the copy engine, the copy operation including writing the rendered data into a memory surface and then copying the rendered data into a local memory for display;
• perform a translation lookaside buffer (TLB) prefetch for the copy operation, including checking for page faults;
• and
• upon completion of the TLB prefetch, invoke the copy operation at the copy engine.