Snoop request management in a data processing system

Details Snoop request management in a data processing system Snoop request management in a data processing system

2011-07-26

2011-07-26

Peugh, Brian R (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S141000, C711S144000, C711S220000

Reexamination Certificate

active

07987322

ABSTRACT:
Snoop requests are managed in a data processing system having a cache coupled to a processor that provides access addresses to the cache. Snoop queue circuitry provides snoop addresses to the cache via an arbiter. The snoop queue circuitry has a snoop request queue for storing a plurality of entries. Each entry of the snoop request queue that corresponds to a snoop request includes a snoop address and a corresponding status indicator. The corresponding status indicator indicates whether the snoop request has zero or more collapsed snoop requests having a common snoop address which have been merged to form the snoop request. The status indicator is used for debug and by fullness management logic to manage the capacity of the snoop request queue. A general collapsed status signal is generated to indicate whenever any snoop queue entry collapsing occurs.

REFERENCES:
patent: 5526510 (1996-06-01), Akkary et al.
patent: 5652859 (1997-07-01), Mulla et al.
patent: 5893151 (1999-04-01), Merchant
patent: 5920892 (1999-07-01), Nguyen
patent: 6073212 (2000-06-01), Hayes et al.
patent: 6389517 (2002-05-01), Moudgal et al.
patent: 6668309 (2003-12-01), Bachand et al.
patent: 6901495 (2005-05-01), Cypher
patent: 2008/0109585 (2008-05-01), DeMent et al.
patent: 2010/0057998 (2010-03-01), Moyer et al.
patent: 2010/0058000 (2010-03-01), Moyer et al.

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