psb

Profiling Synchronization Barrier

PSB CSYNC

Synchronizes the statistical profiling unit.

Pseudocode Operation

ProfileSynchronize()

Encoding

Binary Layout

11010101000000110010

31:12

0010

11:8

001

7:5

11111

4:0

 

Format System Alias

Opcode 0xD503223F

Extension Profiling

Operands

Related

More in Profiling

Reference

View in Arm A64 ISA Reference ↗ Arm A64 ISA

Instruction Forms

Encoding	Instruction		ISA		Bit pattern
0xD503223F	PSB CSYNC		A64		11010101000000110010 | 0010 | 001 | 11111

Description

Profiling Synchronization Barrier. This instruction is a barrier that ensures that all existing profiling data for the current PE has been formatted, and profiling buffer addresses have been translated such that all writes to the profiling buffer have been initiated. A following DSB instruction completes when the writes to the profiling buffer have completed. If FEAT_SPE is not implemented, this instruction executes as a NOP.

Operation

ProfilingSynchronizationBarrier();