tlbsync

TLB Synchronize

tlbsync

Provides an ordering function for the effects of all tlbie instructions executed by the thread executing the tlbsync instruction.

Encoding

Binary Layout

31

0:5

/

6:10

/

11:15

/

16:20

566

21:30

/

31

 

Format X-form

Opcode 0x7C00046C

Extension Privileged

Operands

Related

More in Privileged

Reference

View in PowerISA v3.1C Specification ↗ OPF Power ISA v3.1C

Description

Provides a memory ordering function that ensures all tlbie instructions executed by the thread before this instruction have completed before any instruction after tlbsync begins execution. This is a privileged instruction used to synchronize TLB invalidation operations. No condition registers or status fields are affected; this is purely an ordering barrier for memory management operations.

Operation

Synchronize effects of all preceding tlbie instructions

Programming Note

tlbsync should not be used to synchronize the completion of tlbiel.