Invention Grant
- Patent Title: Merging demand load requests with prefetch load requests
- Patent Title (中): 将需求加载请求与预取加载请求合并
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Application No.: US13864542Application Date: 2013-04-17
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Publication No.: US09286223B2Publication Date: 2016-03-15
- Inventor: Sriram Srinivasan , Tarun Nakra
- Applicant: ADVANCED MICRO DEVICES, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F13/00 ; G06F13/28 ; G06F12/08

Abstract:
A processor includes a processing unit, a cache memory, and a central request queue. The central request queue is operable to receive a prefetch load request for a cache line to be loaded into the cache memory, receive a demand load request for the cache line from the processing unit, merge the prefetch load request and the demand load request to generate a promoted load request specifying the processing unit as a requestor, receive the cache line associated with the promoted load request, and forward the cache line to the processing unit.
Public/Granted literature
- US20140317356A1 MERGING DEMAND LOAD REQUESTS WITH PREFETCH LOAD REQUESTS Public/Granted day:2014-10-23
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