Intel Corporation

Steven Zhang

Linda J Rankin

Zhen Fang

Nagabhushan Chitlur

Ling Liu

Erik Hallnor

Dave Dunning

Nitin B Gupte

Shunyu Zhu

Zhihong Yu

Chuanhua Song

Domain-based cache management methods and systems, including domain event based priority demotion ('EPD'). In EPD, priorities of cached data blocks are demoted upon one or more domain events, such as upon encoding of one or more macroblocks of a video frame. New data blocks may be written over lowest priority cached data blocks. New data blocks may initially be assigned a highest priority. Alternatively, or additionally, one or more new data blocks may initially be assigned one of a plurality of higher priorities based on domain-based information, such as a relative position of a requested data block within a video frame, and/or a relative direction associated with a requested data block. Domain-based cache management may be implemented with one or more other cache management techniques, such as least recently used techniques. Domain-based cache management may be implemented in associative caches, including set associative caches and fully associative caches, and may be implemented with indirect indexing.

Domain-based cache management, including domain event based priority demotion

According to some embodiments, data to be exchanged via a system input output interface may be determined at a processor. It may then be arranged to exchange the data via a coherent input output device coupled to a coherent system interconnect. Other embodiments are described.

Coherent input output device

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Hillsboro, OR, United States of America

Steven Zhang