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dawn / dawn / e33022cfced373e48f5a2bd445ab0d37c88ecb2c
commite33022cfced373e48f5a2bd445ab0d37c88ecb2c[log] [tgz]
authorKyle Charbonneau <kylechar@google.com>Thu Nov 14 22:30:05 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Nov 14 22:30:05 2024 +0000
tree53c1a976f3338b12c35d0423aae4044f7e9ebf23
parent7c12a031c1d8341634ce5c890ba5118f5527f4b4 [diff]
Make monolithic PipelineCache thread safe

When vulkan_monolithic_pipeline_cache is enabled there is a single
VkPipelineCache+PipelineCache object owned by each device. That
PipelineCache can be used by multiple worker threads at the same time so
it needs to be thread safe.

Change mMonolithicPipelineCache creation so it happens during device
initialization. This avoids problems around multiple threads trying to
create it lazily. This might decrease the chance of having previous
pipeline cache data loaded from disk into BlobCache in time for
creation.

Also make PipelineCacheBase+PipelineCache more thread safe. Most member
variables are already set at creation time and then never modified.
mNeedsStore is an exception so use an atomic there. mStoredDataSize is
another member variable that is modified after creation but
SerializeToBlobImpl() should only be called from a single thread.

Bug: 370343334
Change-Id: I1815c0866e24ca40e8544a2948bb814824e611df
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/214736
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Kyle Charbonneau <kylechar@google.com>
5 files changed
tree: 53c1a976f3338b12c35d0423aae4044f7e9ebf23
  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-tidy
  20. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gitmodules
  24. .gn
  25. AUTHORS
  26. BUILD.bazel
  27. BUILD.gn
  28. CMakeLists.txt
  29. CMakeSettings.json
  30. CODE_OF_CONDUCT.md
  31. codereview.settings
  32. CONTRIBUTING.md
  33. CPPLINT.cfg
  34. DEPS
  35. DIR_METADATA
  36. go.mod
  37. go.sum
  38. go_presubmit_support.py
  39. LICENSE
  40. OWNERS
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. WATCHLISTS
  45. 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.