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:
Aug. 16, 2016
Filed:
Jul. 21, 2014
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Karthik Sundaram, Austin, TX (US);
Rama Gopal, Austin, TX (US);
Murali Chinnakonda, Austin, TX (US);
Abstract
A Fill Buffer (FB) based data forwarding scheme that stores a combination of Virtual Address (VA), TLB (Translation Look-aside Buffer) entry# or an indication of a location of a Page Table Entry (PTE) in the TLB, and a TLB page size information in the FB and uses these values to expedite FB forwarding. Load (Ld) operations send their non-translated VA for an early comparison against the VA entries in the FB, and are then further qualified with the TLB entry# to determine a 'hit.' This hit determination is fast and enables FB forwarding at higher frequencies without waiting for a comparison of Physical Addresses (PA) to conclude in the FB. A safety mechanism may detect a false hit in the FB and generate a late load cancel indication to cancel the earlier-started FB forwarding by ignoring the data obtained as a result of the Ld execution. The Ld is then re-executed later and tries to complete successfully with the correct data.