发明名称 |
Coherency controller with reduced data buffer |
摘要 |
A coherency controller with a data buffer store that is smaller than the volume of pending read data requests. Data buffers are allocated only for requests that match the ID of another pending request. Buffers are deallocated if all snoops receive responses, none of which contain data. Buffers containing clean data have their data discarded and are reallocated to later requests. The discarded data is later read from the target. When all buffers are full of dirty data requests with a pending order ID are shunted into request queues for later service. Dirty data may be foisted onto coherent agents to make buffers available for reallocation. Accordingly, the coherency controller can issue snoops and target requests for a volume of data that exceeds the number of buffers in the data store. |
申请公布号 |
GB2506520(B) |
申请公布日期 |
2017.01.11 |
申请号 |
GB20130015343 |
申请日期 |
2013.08.29 |
申请人 |
Qualcomm Technologies Inc |
发明人 |
Laurent Moll;Jean-Jacques Lecler;Jonah Proujansky-bell |
分类号 |
G06F12/0831;G06F12/0842 |
主分类号 |
G06F12/0831 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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