公开(公告)号：US12292834B2

公开(公告)日：2025-05-06

申请号：US18343971

申请日：2023-06-29

Applicant: Arm Limited

Inventor： Vladimir Vasekin ,  Vincent Rezard ,  Antony John Penton ,  Cédric Denis Robert Airaud

IPC: G06F12/0862

Abstract: An apparatus comprises associating circuitry to associate an indirect prefetch condition with a memory access request when hint information indicates that the data to be accessed in response to the memory access request is address indicating data which is to be used to generate a second address for a subsequent memory access request. A second address can be generated using the address indicating data, and a prefetch memory access request can be issued to seek to make data at the second address available in the associated cache.

公开(公告)号：US11947460B2

公开(公告)日：2024-04-02

申请号：US17729233

申请日：2022-04-26

Applicant: Arm Limited

Inventor： Vladimir Vasekin ,  David Michael Bull ,  Vincent Rezard ,  Anton Antonov

IPC: G06F12/08 ,  G06F9/38 ,  G06F12/0842 ,  G06F12/0891

CPC classification number: G06F12/0842 ,  G06F9/3816 ,  G06F12/0891 ,  G06F2212/1021

Abstract: Apparatus, method and code for fabrication of the apparatus, the apparatus comprising a cache providing a plurality of cache lines, each cache line storing a block of data; cache access control circuitry, responsive to an access request, to determine whether a hit condition is present in the cache; and cache configuration control circuitry to set, in response to a merging trigger event, merge indication state identifying multiple cache lines to be treated as a merged cache line to store multiple blocks of data, wherein when the merge indication state indicates that the given cache line is part of the merged cache line, the cache access control circuitry is responsive to detecting the hit condition to allow access to any of the data blocks stored in the multiple cache lines forming the merged cache line.