Selective coherency control

Details Selective coherency control Selective coherency control

2011-04-12

2011-04-12

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S138000, C711SE12021, C711SE12026, C345S503000

Reexamination Certificate

active

07925836

ABSTRACT:
A data processing system is provided with a general purpose programmable processor and an accelerator processor. Coherency control circuitry manages data coherence between data items which may be stored within a cache memory and/or a further memory. Memory access requests from the accelerator processor are received by a memory request switching circuitry which is responsive to a signal from the accelerator processor to direct the memory access request either via coherency control circuit or directly to the further memory.

REFERENCES:
patent: 2007/0226424 (2007-09-01), Clark et al.

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