Selective hardware lock disabling

Details Selective hardware lock disabling Selective hardware lock disabling

2011-07-05

2011-07-05

Coleman, Eric (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

C712S225000

Reexamination Certificate

active

07975129

ABSTRACT:
Controlling a reorder buffer (ROB) to selectively perform functional hardware lock disabling (HLD) is described. One apparatus embodiment includes a unit to enable an ROB to selectively disable a lock upon Identifying a lock acquire operation (LAO) associated with a critical section (CS) entry point, a unit to selectively retire the LAO, a unit to cause the ROB to selectively disable the lock, and a unit to snoop a buffer. The apparatus may, based on the snooping, selectively abort a transaction associated with the CS.

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