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dawn / dawn / f7cc1cc01539da2252814f00f9437998061c6921
commitf7cc1cc01539da2252814f00f9437998061c6921[log] [tgz]
authorLokbondo Kung <lokokung@google.com>Tue Jul 08 11:11:10 2025 -0700
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Jul 08 11:11:10 2025 -0700
treee058cd33967de47926f5910c95adc8b61e376b97
parentd7b31b22748daa067438d2af32f847057b85b3de [diff]
[dawn][native] Fixes TSAN race for new the Defer in DeviceGuard.

- Skia TSAN found that there can be a race since we were null-ing out
  the Defer object without the device lock. Instead of doing without
  the lock, make Defer movable and move the Device Defer to be owned
  by he guard while still holding the lock. This way we don't have
  the potential race where another thread tries to set the Defer
  object while another thread is in the middle of deleting it.

Bug: 430047923
Include-Ci-Only-Tests: true
Change-Id: I112af3a3a3e6eb0cc1802f415277bd6e12504a78
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/251215
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
4 files changed
tree: e058cd33967de47926f5910c95adc8b61e376b97
  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.