MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202617060435 A) filed by Advanced Micro Devices, Inc. on May 12, 2026, for Prefetching Using A Direct Memory Access Engine.
Inventors include Kalyanasundharam, Vydhyanathan; Brennan, Christopher J.; Greathouse, Joseph; and Fowler, Mark.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: A processing system (100) includes one or more DMA engines (150, 160) that load data from memory (140) or another cache location without storing the data after loading it. As the data propagates past caches located between the memory or other cache location that stores the requested data ("intermediate caches"), the data is selectively copied to the intermediate caches based on a cache replacement policy. Rather than the DMA engine manually storing the data into the intermediate caches, the cache replacement policies (512) of the intermediate caches determine whether the data is copied into each respective cache and a replacement priority of the data. By bypassing storing the data, the DMA engine effectuates prefetching to the intermediate caches without expending unnecessary bandwidth or searching for a memory location to store the data, thus reducing latency and saving energy.
Disclaimer: Curated by HT Syndication.
