Invention Grant
- Patent Title: Selective suppression of instruction translation lookaside buffer (ITLB) access
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Application No.: US16286819Application Date: 2019-02-27
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Publication No.: US11194580B2Publication Date: 2021-12-07
- Inventor: Michael K. Gschwind , Valentina Salapura
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Agent Steven Chiu, Esq.; Kevin P. Radigan, Esq.
- Main IPC: G06F9/38
- IPC: G06F9/38 ; G06F9/30 ; G06F12/0875 ; G06F12/1027

Abstract:
Processing of an instruction fetch from an instruction cache is provided, which includes: determining whether the next instruction fetch is from a same address page as a last instruction fetch from the instruction cache; and based, at least in part, on determining that the next instruction fetch is from the same address page, suppressing for the next instruction fetch an instruction address translation table access, and comparing for an address match results of an instruction directory access for the next instruction fetch with buffered results of a most-recent, instruction address translation table access for a prior instruction fetch from the instruction cache.
Public/Granted literature
- US20190196836A1 SELECTIVE SUPPRESSION OF INSTRUCTION TRANSLATION LOOKASIDE BUFFER (ITLB) ACCESS Public/Granted day:2019-06-27
Information query