Merging demand load requests with prefetch load requests

US9286223B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9286223-B2
Application numberUS-201313864542-A
CountryUS
Kind codeB2
Filing dateApr 17, 2013
Priority dateApr 17, 2013
Publication dateMar 15, 2016
Grant dateMar 15, 2016

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Abstract

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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.

First claim

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What is claimed: 1. A processor, comprising: a processing unit; a cache memory; a central request queue 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 reque…

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What does patent US9286223B2 cover?
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 …
Who is the assignee on this patent?
Advanced Micro Devices Inc
What technology area does this patent fall under?
Primary CPC classification G06F12/0862. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).