ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,070, issued on April 15, was assigned to Arm Ltd. (Cambridge, Great Britain).
"Cache line subscription" was invented by Eric Ola Harald Liljedahl (Stockholm) and Jatin Bhartia (Cambridge, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus with an additional storage element or field is provided where a subscription indicator is stored, indicating a subscription to a region of memory, and hence subscribing to a cache line corresponding to the region of memory. In response to a subscribed cache line being invalidated, the apparatus performs actions to re-fetch the cache line, and to store the cache line in the cache after a short ...