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1===============
2AMDGPU Glossary
3===============
4
5Here you can find some generic acronyms used in the amdgpu driver. Notice that
6we have a dedicated glossary for Display Core at
7'Documentation/gpu/amdgpu/display/dc-glossary.rst'.
8
9.. glossary::
10
11 active_cu_number
12 The number of CUs that are active on the system. The number of active
13 CUs may be less than SE * SH * CU depending on the board configuration.
14
15 CP
16 Command Processor
17
18 CPLIB
19 Content Protection Library
20
21 CU
22 Compute Unit
23
24 DFS
25 Digital Frequency Synthesizer
26
27 ECP
28 Enhanced Content Protection
29
30 EOP
31 End Of Pipe/Pipeline
32
33 GART
34 Graphics Address Remapping Table. This is the name we use for the GPUVM
35 page table used by the GPU kernel driver. It remaps system resources
36 (memory or MMIO space) into the GPU's address space so the GPU can access
37 them. The name GART harkens back to the days of AGP when the platform
38 provided an MMU that the GPU could use to get a contiguous view of
39 scattered pages for DMA. The MMU has since moved on to the GPU, but the
40 name stuck.
41
42 GC
43 Graphics and Compute
44
45 GMC
46 Graphic Memory Controller
47
48 GPUVM
49 GPU Virtual Memory. This is the GPU's MMU. The GPU supports multiple
50 virtual address spaces that can be in flight at any given time. These
51 allow the GPU to remap VRAM and system resources into GPU virtual address
52 spaces for use by the GPU kernel driver and applications using the GPU.
53 These provide memory protection for different applications using the GPU.
54
55 GTT
56 Graphics Translation Tables. This is a memory pool managed through TTM
57 which provides access to system resources (memory or MMIO space) for
58 use by the GPU. These addresses can be mapped into the "GART" GPUVM page
59 table for use by the kernel driver or into per process GPUVM page tables
60 for application usage.
61
62 IH
63 Interrupt Handler
64
65 HQD
66 Hardware Queue Descriptor
67
68 IB
69 Indirect Buffer
70
71 IP
72 Intellectual Property blocks
73
74 KCQ
75 Kernel Compute Queue
76
77 KGQ
78 Kernel Graphics Queue
79
80 KIQ
81 Kernel Interface Queue
82
83 MEC
84 MicroEngine Compute
85
86 MES
87 MicroEngine Scheduler
88
89 MMHUB
90 Multi-Media HUB
91
92 MQD
93 Memory Queue Descriptor
94
95 PPLib
96 PowerPlay Library - PowerPlay is the power management component.
97
98 PSP
99 Platform Security Processor
100
101 RLC
102 RunList Controller
103
104 SDMA
105 System DMA
106
107 SE
108 Shader Engine
109
110 SH
111 SHader array
112
113 SMU
114 System Management Unit
115
116 SS
117 Spread Spectrum
118
119 VCE
120 Video Compression Engine
121
122 VCN
123 Video Codec Next
1===============
2AMDGPU Glossary
3===============
4
5Here you can find some generic acronyms used in the amdgpu driver. Notice that
6we have a dedicated glossary for Display Core at
7'Documentation/gpu/amdgpu/display/dc-glossary.rst'.
8
9.. glossary::
10
11 active_cu_number
12 The number of CUs that are active on the system. The number of active
13 CUs may be less than SE * SH * CU depending on the board configuration.
14
15 CP
16 Command Processor
17
18 CPLIB
19 Content Protection Library
20
21 CU
22 Compute Unit
23
24 DFS
25 Digital Frequency Synthesizer
26
27 ECP
28 Enhanced Content Protection
29
30 EOP
31 End Of Pipe/Pipeline
32
33 GART
34 Graphics Address Remapping Table. This is the name we use for the GPUVM
35 page table used by the GPU kernel driver. It remaps system resources
36 (memory or MMIO space) into the GPU's address space so the GPU can access
37 them. The name GART harkens back to the days of AGP when the platform
38 provided an MMU that the GPU could use to get a contiguous view of
39 scattered pages for DMA. The MMU has since moved on to the GPU, but the
40 name stuck.
41
42 GC
43 Graphics and Compute
44
45 GMC
46 Graphic Memory Controller
47
48 GPUVM
49 GPU Virtual Memory. This is the GPU's MMU. The GPU supports multiple
50 virtual address spaces that can be in flight at any given time. These
51 allow the GPU to remap VRAM and system resources into GPU virtual address
52 spaces for use by the GPU kernel driver and applications using the GPU.
53 These provide memory protection for different applications using the GPU.
54
55 GTT
56 Graphics Translation Tables. This is a memory pool managed through TTM
57 which provides access to system resources (memory or MMIO space) for
58 use by the GPU. These addresses can be mapped into the "GART" GPUVM page
59 table for use by the kernel driver or into per process GPUVM page tables
60 for application usage.
61
62 IH
63 Interrupt Handler
64
65 HQD
66 Hardware Queue Descriptor
67
68 IB
69 Indirect Buffer
70
71 IP
72 Intellectual Property blocks
73
74 KCQ
75 Kernel Compute Queue
76
77 KGQ
78 Kernel Graphics Queue
79
80 KIQ
81 Kernel Interface Queue
82
83 MEC
84 MicroEngine Compute
85
86 MES
87 MicroEngine Scheduler
88
89 MMHUB
90 Multi-Media HUB
91
92 MQD
93 Memory Queue Descriptor
94
95 PPLib
96 PowerPlay Library - PowerPlay is the power management component.
97
98 PSP
99 Platform Security Processor
100
101 RLC
102 RunList Controller
103
104 SDMA
105 System DMA
106
107 SE
108 Shader Engine
109
110 SH
111 SHader array
112
113 SMU
114 System Management Unit
115
116 SS
117 Spread Spectrum
118
119 VCE
120 Video Compression Engine
121
122 VCN
123 Video Codec Next