Prefetch address translation using prefetch buffer based on availability of address translation logic
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United States of America Patent
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Oct 6, 2015
Grant Date -
Dec 19, 2013
app pub date -
Jun 15, 2012
filing date -
Jun 15, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Embodiments relate to prefetch address translation in a computer processor. An aspect includes issuing, by prefetch logic, a prefetch request comprising a virtual page address. Another aspect includes, based on the prefetch request missing the TLB and the address translation logic of the processor being busy performing a current translation request, comparing a page of the prefetch request to a page of the current translation request. Yet another aspect includes, based on the page of the prefetch request matching the page of the current translation request, storing the prefetch request in a prefetch buffer.
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