Cache coherence mechanism based on locking

Details Cache coherence mechanism based on locking Cache coherence mechanism based on locking

1987-12-18

1988-10-04

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 900

Patent

active

047759550

ABSTRACT:
A method and apparatus is provided for associating in cache directories the Control Domain Identifications (CDIDs) of software covered by each cache line. Through the use of such provision and/or the addition of Identifications of users actively using lines, cache coherence of certain data is controlled without performing conventional Cross-Interrogates (XIs), if the accesses to such objects are properly synchronized with locking type concurrency controls. Software protocols to caches are provided for the resource kernel to control the flushing of released cache lines. The parameters of these protocols are high level Domain Identifications and Task Identifications.

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