Invention Grant
- Patent Title: Direct access to cache memory
- Patent Title (中): 直接访问缓存内存
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Application No.: US12969651Application Date: 2010-12-16
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Publication No.: US08352646B2Publication Date: 2013-01-08
- Inventor: Jason A. Cox , Omer Heymann , Nadav Levison , Kevin C. Lin , Eric F. Robinson
- Applicant: Jason A. Cox , Omer Heymann , Nadav Levison , Kevin C. Lin , Eric F. Robinson
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Biggers & Ohanian, LLP.
- Agent Edward J. Lenart; Daniel H. Schnurmann
- Main IPC: G06F13/28
- IPC: G06F13/28

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.
Public/Granted literature
- US20120159082A1 Direct Access To Cache Memory Public/Granted day:2012-06-21
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