Invention Grant
- Patent Title: Methods and apparatus for data cache way prediction based on classification as stack data
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Application No.: US13945659Application Date: 2013-07-18
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Publication No.: US09734059B2Publication Date: 2017-08-15
- Inventor: Lena E. Olson , Yasuko Eckert , Vilas K. Sridharan , James M. O'Connor , Mark D. Hill , Srilatha Manne
- Applicant: ADVANCED MICRO DEVICES, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F12/0802 ; G06F12/0875 ; G06F12/123 ; G06F12/0846 ; G06F12/0864 ; G06F12/0862

Abstract:
A method of way prediction for a data cache having a plurality of ways is provided. Responsive to an instruction to access a stack data block, the method accesses identifying information associated with a plurality of most recently accessed ways of a data cache to determine whether the stack data block resides in one of the plurality of most recently accessed ways of the data cache, wherein the identifying information is accessed from a subset of an array of identifying information corresponding to the plurality of most recently accessed ways; and when the stack data block resides in one of the plurality of most recently accessed ways of the data cache, the method accesses the stack data block from the data cache.
Public/Granted literature
- US20140143499A1 METHODS AND APPARATUS FOR DATA CACHE WAY PREDICTION BASED ON CLASSIFICATION AS STACK DATA Public/Granted day:2014-05-22
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