TECHNIQUES FOR AVOIDING CACHE VICTIM BASED DEADLOCKS IN COHERENT INTERCONNECTS
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United States of America Patent
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Issued Date -
Dec 15, 2016
app pub date -
Jun 9, 2015
filing date -
Jun 9, 2015
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and a method are disclosed to control flow of victim transactions received at a coherent interconnect from a coherent device of a processing system. A victim transaction is received from the coherent device at the coherent interconnect if a value of a first token indicates that at least one victim transaction is available to be received by the coherent interconnect. A victim transaction is available to be received by the coherent interconnect for each increment of the value of the first token greater than zero. The value of the first token is decremented for each victim transaction received by the coherent interconnect from the coherent device. An indication of the value of the first token is sent to the coherent device from the coherent interconnect.
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