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:
Feb. 28, 2012
Filed:
Nov. 30, 2009
Jaewoong Chung, Bellevue, WA (US);
David S. Christie, Austin, TX (US);
Michael P. Hohmuth, Dresden, DE;
Stephan Diestelhorst, Dresden, DE;
Martin Pohlack, Dresden, DE;
Jaewoong Chung, Bellevue, WA (US);
David S. Christie, Austin, TX (US);
Michael P. Hohmuth, Dresden, DE;
Stephan Diestelhorst, Dresden, DE;
Martin Pohlack, Dresden, DE;
Advanced Micro Devices, Inc., Austin, TX (US);
Abstract
An apparatus, method, and system for implementing a hardware transactional memory (HTM) system with multiple levels of transactional buffers. The apparatus comprises a data cache configured to buffer data in a shared (by a plurality of processing cores) memory accessed by speculative memory access operations and to retain the data during at least a portion of an attempt to execute the atomic memory transaction. The apparatus also comprises an overflow detection circuit configured to detect an overflow condition upon determining that the data cache has insufficient capacity to buffer a portion of data accessed as part of the atomic memory transaction, as well as a buffering circuit configured to respond to the detection of the overflow condition by preventing the portion of data from being buffered in the data cache and buffering the portion of data in a secondary buffer separate from the data cache.