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:
Jan. 08, 2013
Filed:
Dec. 16, 2010
Jason A. Cox, Raleigh, NC (US);
Omer Heymann, Tzofit, IL;
Nadav Levison, Herut, IL;
Kevin C. Lin, Raleigh, NC (US);
Eric F. Robinson, Raleigh, NC (US);
Jason A. Cox, Raleigh, NC (US);
Omer Heymann, Tzofit, IL;
Nadav Levison, Herut, IL;
Kevin C. Lin, Raleigh, NC (US);
Eric F. Robinson, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Methods and apparatuses are disclosed for direct access to cache memory. Embodiments include receiving, by a direct access manager that is coupled to a cache controller for a cache memory, a region scope zero command describing a region scope zero operation to be performed on the cache memory; in response to receiving the region scope zero command, generating a direct memory access region scope zero command, the direct memory access region scope zero command having an operation code and an identification of the physical addresses of the cache memory on which the operation is to be performed; sending the direct memory access region scope zero command to the cache controller for the cache memory; and performing, by the cache controller, the direct memory access region scope zero operation in dependence upon the operation code and the identification of the physical addresses of the cache memory.