1 =============== 1 ===============
2 AMDGPU Glossary 2 AMDGPU Glossary
3 =============== 3 ===============
4 4
5 Here you can find some generic acronyms used i 5 Here you can find some generic acronyms used in the amdgpu driver. Notice that
6 we have a dedicated glossary for Display Core 6 we have a dedicated glossary for Display Core at
7 'Documentation/gpu/amdgpu/display/dc-glossary. 7 'Documentation/gpu/amdgpu/display/dc-glossary.rst'.
8 8
9 .. glossary:: 9 .. glossary::
10 10
11 active_cu_number 11 active_cu_number
12 The number of CUs that are active on the 12 The number of CUs that are active on the system. The number of active
13 CUs may be less than SE * SH * CU depend 13 CUs may be less than SE * SH * CU depending on the board configuration.
14 14
15 CP 15 CP
16 Command Processor 16 Command Processor
17 17
18 CPLIB 18 CPLIB
19 Content Protection Library 19 Content Protection Library
20 20
21 CU 21 CU
22 Compute Unit 22 Compute Unit
23 23
24 DFS 24 DFS
25 Digital Frequency Synthesizer 25 Digital Frequency Synthesizer
26 26
27 ECP 27 ECP
28 Enhanced Content Protection 28 Enhanced Content Protection
29 29
30 EOP 30 EOP
31 End Of Pipe/Pipeline 31 End Of Pipe/Pipeline
32 32
33 GART <<
34 Graphics Address Remapping Table. This <<
35 page table used by the GPU kernel driver <<
36 (memory or MMIO space) into the GPU's ad <<
37 them. The name GART harkens back to the <<
38 provided an MMU that the GPU could use t <<
39 scattered pages for DMA. The MMU has si <<
40 name stuck. <<
41 <<
42 GC 33 GC
43 Graphics and Compute 34 Graphics and Compute
44 35
45 GMC 36 GMC
46 Graphic Memory Controller 37 Graphic Memory Controller
47 <<
48 GPUVM <<
49 GPU Virtual Memory. This is the GPU's M <<
50 virtual address spaces that can be in fl <<
51 allow the GPU to remap VRAM and system r <<
52 spaces for use by the GPU kernel driver <<
53 These provide memory protection for diff <<
54 <<
55 GTT <<
56 Graphics Translation Tables. This is a <<
57 which provides access to system resource <<
58 use by the GPU. These addresses can be m <<
59 table for use by the kernel driver or in <<
60 for application usage. <<
61 38
62 IH 39 IH
63 Interrupt Handler 40 Interrupt Handler
64 41
65 HQD 42 HQD
66 Hardware Queue Descriptor 43 Hardware Queue Descriptor
67 44
68 IB 45 IB
69 Indirect Buffer 46 Indirect Buffer
70 47
71 IP 48 IP
72 Intellectual Property blocks 49 Intellectual Property blocks
73 50
74 KCQ 51 KCQ
75 Kernel Compute Queue 52 Kernel Compute Queue
76 53
77 KGQ 54 KGQ
78 Kernel Graphics Queue 55 Kernel Graphics Queue
79 56
80 KIQ 57 KIQ
81 Kernel Interface Queue 58 Kernel Interface Queue
82 59
83 MEC 60 MEC
84 MicroEngine Compute 61 MicroEngine Compute
85 62
86 MES 63 MES
87 MicroEngine Scheduler 64 MicroEngine Scheduler
88 65
89 MMHUB 66 MMHUB
90 Multi-Media HUB 67 Multi-Media HUB
91 68
92 MQD 69 MQD
93 Memory Queue Descriptor 70 Memory Queue Descriptor
94 71
95 PPLib 72 PPLib
96 PowerPlay Library - PowerPlay is the pow 73 PowerPlay Library - PowerPlay is the power management component.
97 74
98 PSP 75 PSP
99 Platform Security Processor 76 Platform Security Processor
100 77
101 RLC 78 RLC
102 RunList Controller 79 RunList Controller
103 80
104 SDMA 81 SDMA
105 System DMA 82 System DMA
106 83
107 SE 84 SE
108 Shader Engine 85 Shader Engine
109 86
110 SH 87 SH
111 SHader array 88 SHader array
112 89
113 SMU 90 SMU
114 System Management Unit 91 System Management Unit
115 92
116 SS 93 SS
117 Spread Spectrum 94 Spread Spectrum
118 95
119 VCE 96 VCE
120 Video Compression Engine 97 Video Compression Engine
121 98
122 VCN 99 VCN
123 Video Codec Next 100 Video Codec Next
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