Method and apparatus to write modified cache data to a backing store while retaining write permissions

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United States of America Patent

PATENT NO 9311241
APP PUB NO 20140189241A1
SERIAL NO

13730957

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Abstract

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A method is described that includes performing the following for a transactional operation in response to a request from a processing unit that is directed to a cache identifying a cache line. Reading the cache line, and, if the cache line is in a Modified cache coherency protocol state, forwarding the cache line to circuitry that will cause the cache line to be written to deeper storage, and, changing another instance of the cache line that is available to the processing unit for the transactional operation to an Exclusive cache coherency state.

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Patent Owner(s)

Patent OwnerAddress
INTEL CORPORATION2200 MISSION COLLEGE BOULEVARD SANTA CLARA CA 95054

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bessette, Jason Portland, US 2 21
Chappell, Robert Portland, US 12 101
Rajwar, Ravi Portland, US 85 2381
Zhang, Zhongying Portland, US 13 186

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