公开(公告)号：US20230418763A1

公开(公告)日：2023-12-28

申请号：US18203186

申请日：2023-05-30

Applicant: SiFive, Inc.

Inventor： Benoy Alexander ,  John Ingalls ,  Mohit Gopal Wani

IPC: G06F12/1036

CPC classification number: G06F12/1036 ,  G06F2212/681 ,  G06F2212/684

Abstract: Described is a translation lookaside buffer (TLB) prefetcher with multi-level TLB prefetches and feedback architecture. A processing system includes 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 receive feedback from the miss queue at each TLB level for previously sent TLB prefetches and control number of TLB prefetches sent for a trained TLB entry to each TLB level of the two or more TLB levels based on the feedback.