The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2018
Filed:
Dec. 26, 2012
Applicant:
Nvidia Corporation, Santa Clara, CA (US);
Inventors:
Guillermo J. Rozas, Los Gatos, CA (US);
Bharath Krishnan, Santa Clara, CA (US);
James Van Zoeren, Albuquerque, NM (US);
Assignee:
Nvidia Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2006.01); G06F 12/1027 (2016.01); G06F 9/38 (2018.01);
U.S. Cl.
CPC ...
G06F 12/1027 (2013.01); G06F 9/3834 (2013.01);
Abstract
A method for detecting an instruction ordering violation in a CPU. The method includes receiving a reordered stream of instructions and detecting whether an ordering violation has occurred by using virtual addresses. The method further includes transferring results of the reordered stream of instructions from a load store buffer into a cache and detecting whether an ordering violation has occurred by using physical addresses. Subsequently, a recovery is initiated upon detection of an ordering violation.