Apple inc. (20250094174). Coprocessor Prefetcher

Coprocessor Prefetcher

Organization Name

apple inc.

Inventor(s)

Brandon H. Dwiel of Boston MA (US)

Andrew J. Beaumont-smith of Cambridge MA (US)

Eric J. Furbish of Austin TX (US)

John D. Pape of Cedar Park TX (US)

Stephen G. Meier of Los Altos CA (US)

Tyler J. Huberty of Sunnyvale CA (US)

Coprocessor Prefetcher

This abstract first appeared for US patent application 20250094174 titled 'Coprocessor Prefetcher

Original Abstract Submitted

a prefetcher for a coprocessor is disclosed. an apparatus includes a processor and a coprocessor that are configured to execute processor and coprocessor instructions, respectively. the processor and coprocessor instructions appear together in code sequences fetched by the processor, with the coprocessor instructions being provided to the coprocessor by the processor. the apparatus further includes a coprocessor prefetcher configured to monitor a code sequence fetched by the processor and, in response to identifying a presence of coprocessor instructions in the code sequence, capture the memory addresses, generated by the processor, of operand data for coprocessor instructions. the coprocessor is further configured to issue, for a cache memory accessible to the coprocessor, prefetches for data associated with the memory addresses prior to execution of the coprocessor instructions by the coprocessor.