Electrical computers and digital processing systems: memory – Storage accessing and control – Shared memory area
Reexamination Certificate
2007-05-22
2007-05-22
Peugh, Brian R. (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Shared memory area
C711S158000, C711S159000
Reexamination Certificate
active
10601030
ABSTRACT:
A system and method are provided for tracking memory requests within a data processing system. The system includes a request tracking circuit that is coupled to receive requests for data from multiple processors. Multiple pending requests to the same memory address are tracked using a linked list. Only the oldest pending one of these multiple requests is issued to the memory. When data is returned from the memory, the requests are processed in an order determined by the linked list. That is, the data is provided to a processor associated with the oldest request. Thereafter, the data is retrieved and provided to the processor associated with the next request, and so on. A request issued by the memory soliciting the return of the data to the memory may also be added to the linked list to be processed in the foregoing manner.
REFERENCES:
patent: 5995967 (1999-11-01), Iacobovici et al.
patent: 6434641 (2002-08-01), Haupt et al.
patent: 6546465 (2003-04-01), Bertone
patent: 6611906 (2003-08-01), McAllister et al.
patent: 6820086 (2004-11-01), Iacobovici et al.
patent: 6973550 (2005-12-01), Rosenbluth et al.
Vartti Kelvin S.
Weber Ross M.
Gregson Richard J.
Johnson Charles A.
McMahon Beth L.
Peugh Brian R.
Unisys Corporation
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