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dawn / dawn / 7e31f668425d3d4dfcb0cfc587f4c76384e512b6
commit7e31f668425d3d4dfcb0cfc587f4c76384e512b6[log] [tgz]
authorCorentin Wallez <cwallez@chromium.org>Fri Jun 06 08:54:25 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Jun 06 08:54:25 2025 -0700
tree6d89e70ed2e509f303a626e48a2eeb5ae8246bc4
parentbd3158b75add0672b983111e0c159e99f16fc6cb [diff]
[dawn][native] Eagerly submit to release mappedAtCreation staging.

The DynamicUploader has tracking of how much memory is pending a submit
to be eventually released. However the staging buffer for
mappedAtCreation buffers was not accounted.

Make the DynamicUploader trigger an early submit when pending staging
memory is above 16MB. This could cause reantrancy during some queue
submissions so ExecutionQueue is modified to have a guard against
reentrant submits.

Bug: 42242066
Change-Id: I1a81fc0fe51208b39b220fcc1b6d851f71367b33
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/226596
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
36 files changed
tree: 6d89e70ed2e509f303a626e48a2eeb5ae8246bc4
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-format-ignore
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gitmodules
  25. .gn
  26. .style.yapf
  27. .vpython3
  28. AUTHORS
  29. BUILD.bazel
  30. BUILD.gn
  31. CMakeLists.txt
  32. CMakeSettings.json
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. CONTRIBUTING.md
  36. CPPLINT.cfg
  37. DEPS
  38. DIR_METADATA
  39. go.mod
  40. go.sum
  41. go_presubmit_support.py
  42. LICENSE
  43. OWNERS
  44. PRESUBMIT.py
  45. README.chromium
  46. README.md
  47. WATCHLISTS
  48. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.