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. 04, 2020
Filed:
Mar. 31, 2017
Intel Corporation, Santa Clara, CA (US);
Ren Wang, Portland, OR (US);
Chunhui Zhang, Portland, OR (US);
Qixiong J. Bian, Beaverton, OR (US);
Bret L. Toll, Hillsboro, OR (US);
Jason W. Brandt, Austin, TX (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Method and apparatus for efficient range-based memory write back is described herein. One embodiment of an apparatus includes a system memory, a plurality of hardware processor cores each of which includes a first cache, a decoder circuitry to decode an instruction having fields for a first memory address and a range indicator, and an execution circuitry to execute the decoded instruction. Together, the first memory address and the range indicator define a contiguous region in the system memory that includes one or more cache lines. An execution of the decoded instruction causes any instances of the one or more cache lines in the first cache to be invalidated. Additionally, any invalidated instances of the one or more cache lines that are dirty are to be stored to system memory.