Invention Grant
US08533505B2 Data processing apparatus and method for transferring workload between source and destination processing circuitry
有权
用于在源和目的地处理电路之间传送工作负载的数据处理装置和方法
- Patent Title: Data processing apparatus and method for transferring workload between source and destination processing circuitry
- Patent Title (中): 用于在源和目的地处理电路之间传送工作负载的数据处理装置和方法
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Application No.: US12659230Application Date: 2010-03-01
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Publication No.: US08533505B2Publication Date: 2013-09-10
- Inventor: Peter Richard Greenhalgh
- Applicant: Peter Richard Greenhalgh
- Applicant Address: GB Cambridge
- Assignee: ARM Limited
- Current Assignee: ARM Limited
- Current Assignee Address: GB Cambridge
- Agency: Nixon & Vanderhye P.C.
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F12/00 ; G06F12/08
Abstract:
In response to a transfer stimulus, performance of a processing workload is transferred from a source processing circuitry to a destination processing circuitry, in preparation for the source processing circuitry to be placed in a power saving condition following the transfer. To reduce the number of memory fetches required by the destination processing circuitry following the transfer, a cache of the source processing circuitry is maintained in a powered state for a snooping period. During the snooping period, cache snooping circuitry snoops data values in the source cache and retrieves the snoop data values for the destination processing circuitry.
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