公开(公告)号：US20140281234A1

公开(公告)日：2014-09-18

申请号：US13795777

申请日：2013-03-12

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Jason G. Power ,  Bradford M. Beckmann ,  Steven K. Reinhardt

IPC: G06F12/08

CPC classification number: G06F12/0815 ,  G06F12/0817

Abstract: Apparatus, computer readable medium, and method of servicing memory requests are presented. A read request for a memory block from a requester processing having a processor type may be serviced by providing exclusive access to the requested memory block to the requester processor when the requested memory block was modified a last time it was accessed by a previous requester processor having a same processor type as the processor type of the requester processor. Exclusive access to the requested memory block may be provided to the requester processor based on whether the requested memory block was modified by a previous processor having a same type as the requester processor at least once in the last several times the memory block was in a cache of the previous processor. Exclusive access to the requested memory block may be provided to the requester processor based on a region of the memory block.

Abstract translation: 提供了设备，计算机可读介质和服务存储器请求的方法。 当具有处理器类型的请求者处理的存储器块的读取请求可以通过向所请求的处理器提供对所请求的存储器块的独占访问来服务，当所请求的存储器块在上一次由先前的请求者处理器访问时被修改时 与请求者处理器的处理器类型相同的处理器类型。 可以基于所请求的存储器块是否由与请求器处理器具有相同类型的先前处理器在存储器块处于高速缓存器的最后几次中至少一次进行修改而提供给所请求的存储器块的独占访问 的以前的处理器。 可以基于存储器块的区域向请求者处理器提供对所请求的存储器块的独占访问。