AMDGPU Glossary

Here you can find some generic acronyms used in the amdgpu driver. Notice that we have a dedicated glossary for Display Core at ‘DC Glossary’.

active_cu_number
The number of CUs that are active on the system. The number of active CUs may be less than SE * SH * CU depending on the board configuration.
CP
Command Processor
CPLIB
Content Protection Library
CU
Compute Unit
DFS
Digital Frequency Synthesizer
ECP
Enhanced Content Protection
EOP
End Of Pipe/Pipeline
GC
Graphics and Compute
GMC
Graphic Memory Controller
IH
Interrupt Handler
HQD
Hardware Queue Descriptor
IB
Indirect Buffer
IP
Intellectual Property blocks
KCQ
Kernel Compute Queue
KGQ
Kernel Graphics Queue
KIQ
Kernel Interface Queue
MEC
MicroEngine Compute
MES
MicroEngine Scheduler
MMHUB
Multi-Media HUB
MQD
Memory Queue Descriptor
PPLib
PowerPlay Library - PowerPlay is the power management component.
PSP
Platform Security Processor
RLC
RunList Controller
SDMA
System DMA
SE
Shader Engine
SH
SHader array
SMU
System Management Unit
SS
Spread Spectrum
VCE
Video Compression Engine
VCN
Video Codec Next