TRANSLATION LOOKASIDE BUFFER MANAGEMENT

• Main Authors: ASHER DAVID, BERTONE MIKE, HUMMEL TOM, MUKHERJEE SHUBHENDU SEKHAR, DOBBIE BRAD
• Format: Patent
• Language: English
• Published: 19.05.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

Each of multiple translation lookaside buffers (TLBs) is associated with a corresponding processing element. A first TLB invalidation (TLBI) instruction is issued at a first processing element, and sent to a second processing element. An element-specific synchronization instruction is issued at the first processing element. A synchronization command is broadcast, and received at the second processing element. The element-specific synchronization instruction prevents issuance of additional TLBI instructions at the first processing element until an acknowledgement in response to the synchronization command is received at the first processing element. After completion of any TLBI instructions issued at the second processing element before the synchronization command was received, the acknowledgement is sent from the second processing element to the first processing element, indicating that any TLBI instructions issued at the second processing element before the synchronization command was received at the second processing element are complete.