Display Core (DC) is one of the components under amdgpu, and it has multiple features directly related to the KMS API. Unfortunately, we don't have enough documentation about DC in the upstream, which makes the life of some external contributors a little bit more challenging. For these reasons, this patchset reworks part of the DC documentation and introduces a new set of details on how the display core works on DCN IP. Another improvement that this documentation effort tries to bring is making explicit some of our hardware-specific details to guide user-space developers better.
In my view, it is easier to review this series if you apply it in your local kernel and build the HTML version (make htmldocs). I'm suggesting this approach because I added a few SVG diagrams that will be easier to see in the HTML version. If you cannot build the documentation, try to open the SVG images while reviewing the content. In summary, in this series, you will find:
1. Patch 1: Re-arrange of display core documentation. This is preparation work for the other patches, but it is also a way to expand this documentation. 2. Patch 2 to 4: Document some common debug options related to display. 3. Patch 5: This patch provides an overview of how our display core next works and a brief explanation of each component. 4. Patch 6: We use a lot of acronyms in our driver; for this reason, we exposed a glossary with common terms used by display core.
Please let us know what you think we can improve this series and what kind of content you want to see for the next series.
Changes since V2: - Add a comment about MMHUBBUB Changes since V1: - Group amdgpu documentation together. - Create index pages. - Mirror display folder in the documentation. - Divide glossary based on driver context. - Make terms more consistent and update CPLIB - Add new acronyms to the glossary
Thanks Siqueira
Rodrigo Siqueira (6): Documentation/gpu: Reorganize DC documentation Documentation/gpu: Document amdgpu_dm_visual_confirm debugfs entry Documentation/gpu: Document pipe split visual confirmation Documentation/gpu: How to collect DTN log Documentation/gpu: Add basic overview of DC pipeline Documentation/gpu: Add amdgpu and dc glossary
Documentation/gpu/amdgpu-dc.rst | 74 -- Documentation/gpu/amdgpu/amdgpu-glossary.rst | 50 + .../gpu/amdgpu/display/config_example.svg | 414 ++++++ Documentation/gpu/amdgpu/display/dc-debug.rst | 77 ++ .../gpu/amdgpu/display/dc-glossary.rst | 243 ++++ .../amdgpu/display/dc_pipeline_overview.svg | 1125 +++++++++++++++++ .../gpu/amdgpu/display/dcn-overview.rst | 171 +++ .../gpu/amdgpu/display/display-manager.rst | 42 + .../gpu/amdgpu/display/global_sync_vblank.svg | 485 +++++++ Documentation/gpu/amdgpu/display/index.rst | 29 + .../gpu/{amdgpu.rst => amdgpu/index.rst} | 25 +- Documentation/gpu/drivers.rst | 3 +- 12 files changed, 2659 insertions(+), 79 deletions(-) delete mode 100644 Documentation/gpu/amdgpu-dc.rst create mode 100644 Documentation/gpu/amdgpu/amdgpu-glossary.rst create mode 100644 Documentation/gpu/amdgpu/display/config_example.svg create mode 100644 Documentation/gpu/amdgpu/display/dc-debug.rst create mode 100644 Documentation/gpu/amdgpu/display/dc-glossary.rst create mode 100644 Documentation/gpu/amdgpu/display/dc_pipeline_overview.svg create mode 100644 Documentation/gpu/amdgpu/display/dcn-overview.rst create mode 100644 Documentation/gpu/amdgpu/display/display-manager.rst create mode 100644 Documentation/gpu/amdgpu/display/global_sync_vblank.svg create mode 100644 Documentation/gpu/amdgpu/display/index.rst rename Documentation/gpu/{amdgpu.rst => amdgpu/index.rst} (95%)