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1. (US20150356019) Dynamic cache allocation policy adaptation in a data processing apparatus

专利局 : 美国
申请号: 14702049 申请日: 01.05.2015
公布号: 20150356019 公布日: 10.12.2015
授权号: 09836403 授权日: 05.12.2017
公布类型: B2
国际专利分类:
G06F 12/0871
G06F 12/0831
[IPC code unknown for G06F 12/0871][IPC code unknown for G06F 12/0831]
申请人: ARM LIMITED
发明人: Kauser Johar
Antony John Penton
Zemian Hughes
代理人: Nixon & Vanderhye P.C.
优先权数据: 1409963.4 05.06.2014 GB
标题: (EN) Dynamic cache allocation policy adaptation in a data processing apparatus
摘要: front page image
(EN)

A data processing apparatus and method of processing data are disclosed according to which a processor unit is configured to issue write access requests for memory which are buffered and handled by a memory access buffer. A cache unit is configured, in dependence on an allocation policy defined for the cache unit, to cache accessed data items. Memory transactions are constrained to be carried out so that all of a predetermined range of memory addresses within which one or more memory addresses specified by the buffered write access requests lie must be written by the corresponding write operation. If the buffered write access requests do not comprise all memory addresses within at least two predetermined ranges of memory addresses, and the cache unit is configured to operate with a no-write allocate policy, the data processing apparatus is configured to cause the cache unit to subsequently operate with a write allocate policy.


也发表为:
CN105159844JP2015232879