Invention Grant
US09304773B2 Data processor having dynamic control of instruction prefetch buffer depth and method therefor
有权
数据处理器具有指令预取缓冲区深度的动态控制及其方法
- Patent Title: Data processor having dynamic control of instruction prefetch buffer depth and method therefor
- Patent Title (中): 数据处理器具有指令预取缓冲区深度的动态控制及其方法
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Application No.: US11385463Application Date: 2006-03-21
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Publication No.: US09304773B2Publication Date: 2016-04-05
- Inventor: Jeffrey W. Scott , William C. Moyer
- Applicant: Jeffrey W. Scott , William C. Moyer
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Main IPC: G06F15/00
- IPC: G06F15/00 ; G06F7/38 ; G06F9/00 ; G06F9/44 ; G06F9/38 ; G06F9/30 ; G06F12/08
Abstract:
A data processor (102) includes a prefetch buffer (112) and a fetch control unit (116). The prefetch buffer (112) has a plurality of lines. The prefetch buffer (112) has a variable maximum depth that defines a number of lines of the plurality of lines that are capable of storing instructions. The fetch control unit (116) is coupled to the prefetch buffer to monitor at least one of the plurality of lines of the prefetch buffer (112) and to adjust the variable maximum depth of the prefetch buffer (112) in response to a state of the data processor (102).
Public/Granted literature
- US20070226462A1 Data processor having dynamic control of instruction prefetch buffer depth and method therefor Public/Granted day:2007-09-27
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