[PATCH 2/5] Documentation/gpu: Add new glossary entries from UMR

[Timur Kristóf]

Hi,

On Sat, 2025-08-16 at 09:31 -0600, Rodrigo Siqueira wrote:
> 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 at amd.com>
> Cc: Christian König <christian.koenig at amd.com>
> Cc: Timur Kristóf <timur.kristof at gmail.com>
> Signed-off-by: Rodrigo Siqueira <siqueira at igalia.com>
> ---
>  Documentation/gpu/amdgpu/amdgpu-glossary.rst | 21
> ++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/Documentation/gpu/amdgpu/amdgpu-glossary.rst
> b/Documentation/gpu/amdgpu/amdgpu-glossary.rst
> index 30812d9d53c6..eb72e6f6d4f1 100644
> --- a/Documentation/gpu/amdgpu/amdgpu-glossary.rst
> +++ b/Documentation/gpu/amdgpu/amdgpu-glossary.rst
> @@ -30,6 +30,15 @@ we have a dedicated glossary for Display Core at
>      CP
>        Command Processor
>  
> +    CPC
> +      Command Processor Compute
> +
> +    CPF
> +      Command Processor Fetch
> +
> +    CPG
> +      Command Processor Graphics
> +

I would apprectiate a few more details here to connect these to other
glossary items. Here are a few questions:

- Is CPC the same as MEC?
- Is CPF the same as PFP?
- Is CPG the same as ME?

>      CPLIB
>        Content Protection Library
>  
> @@ -78,6 +87,9 @@ we have a dedicated glossary for Display Core at
>      GMC
>        Graphic Memory Controller
>  
> +    GPR
> +      General Purpose Register
> +

Does this refer to registers in shaders or registers in the various IP
blocks? If this is about shaders, it would be useful to mention that in
the context of shaders, a GPR is either SGPR or VGPR. (Those two are
already in the glossary.)

>      GPUVM
>        GPU Virtual Memory.  This is the GPU's MMU.  The GPU supports
> multiple
>        virtual address spaces that can be in flight at any given
> time.  These
> @@ -92,6 +104,9 @@ we have a dedicated glossary for Display Core at
>        table for use by the kernel driver or into per process GPUVM
> page tables
>        for application usage.
>  
> +    GWS
> +      Global Wave Syncs
> +
>      IH
>        Interrupt Handler
>  
> @@ -206,12 +221,18 @@ we have a dedicated glossary for Display Core
> at
>      TC
>        Texture Cache
>  
> +    TCP (AMDGPU)
> +      Texture Cache Processing
> +
>      TOC
>        Table of Contents
>  
>      UMSCH
>        User Mode Scheduler
>  
> +    UTCL
> +      Universal Texture Cache Line
> +
>      UVD
>        Unified Video Decoder
>