tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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Documentation/gpu: Add new glossary entries from UMR

When using UMR, a dashboard is available that displays the CPC, CPF,
CPG, TCP, and UTCL utilization. This commit introduces the meanings of
those acronyms (and others) to the glossary to improve the comprehension
of the UMR dashboard.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Timur Kristóf <timur.kristof@gmail.com>
Cc: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

authored by

Rodrigo Siqueira and committed by
Alex Deucher e0f90f18 b9befc9a

+30
+30
Documentation/gpu/amdgpu/amdgpu-glossary.rst
··· 30 30 CP 31 31 Command Processor 32 32 33 + CPC 34 + Command Processor Compute 35 + 36 + CPF 37 + Command Processor Fetch 38 + 39 + CPG 40 + Command Processor Graphics 41 + 33 42 CPLIB 34 43 Content Protection Library 35 44 ··· 87 78 GMC 88 79 Graphic Memory Controller 89 80 81 + GPR 82 + General Purpose Register 83 + 90 84 GPUVM 91 85 GPU Virtual Memory. This is the GPU's MMU. The GPU supports multiple 92 86 virtual address spaces that can be in flight at any given time. These ··· 104 92 table for use by the kernel driver or into per process GPUVM page tables 105 93 for application usage. 106 94 95 + GWS 96 + Global Wave Sync 97 + 107 98 IH 108 99 Interrupt Handler 100 + 101 + IV 102 + Interrupt Vector 109 103 110 104 HQD 111 105 Hardware Queue Descriptor ··· 233 215 TC 234 216 Texture Cache 235 217 218 + TCP (AMDGPU) 219 + Texture Cache per Pipe. Even though the name "Texture" is part of this 220 + acronym, the TCP represents the path to memory shaders; i.e., it is not 221 + related to texture. The name is a leftover from older designs where shader 222 + stages had different cache designs; it refers to the L1 cache in older 223 + architectures. 224 + 236 225 TOC 237 226 Table of Contents 238 227 239 228 UMSCH 240 229 User Mode Scheduler 230 + 231 + UTC (AMDGPU) 232 + Unified Translation Cache. UTC is equivalent to TLB. You might see a 233 + variation of this acronym with L at the end, i.e., UTCL followed by a 234 + number; L means the cache level (e.g., UTCL1 and UTCL2). 241 235 242 236 UVD 243 237 Unified Video Decoder