Translation lookaside buffer (tlb) prefetcher with multi- level tlb prefetches and feedback architecture

A processing system, comprising:

• two or more translation lookaside buffer (TLB) levels, each TLB level including a miss queue;
• and
• a TLB prefetcher connected to each of the two or more TLB levels, the TLB prefetcher configured to:
• send a number of TLB prefetches to at least one TLB level of the two or more TLB levels;
• receive feedback from miss queues as to whether sent TLB prefetches and TLB demand requests match established miss queue entries, and feedback from the TLB level as to whether the sent TLB prefetches and the TLB demand requests match TLB tags;
• and
• perform at least one of:
• change a prefetch-distance of a TLB entry based on the received feedback;
• invalidate the TLB entry based on the received feedback;
• or
• stop sending TLB prefetches to one or more TLB levels of the two or more TLB levels based on the received feedback.