Google Git
Sign in
dawn/dawn/36208bc34be7b2a0a2fa60ed60189fc5b186263c
commit
36208bc34be7b2a0a2fa60ed60189fc5b186263c
[log]
author
Antonio Maiorano <amaiorano@google.com>
Mon Jun 29 15:57:30 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mon Jun 29 15:57:30 2026 -0700
tree
ae15d8ea640b84cc5ac0fcc1cb8090ef828d14d9
parent
2a44c63cee0532d907bc3b1d47b1f7c3626ad0d4 [diff]
[native][d3d12] Move LinAlg support queries to GatherDeviceInfo

And store the results on D3D12DeviceInfo so that we only do this once on
PhysicalDevice creation, rather than on every
EnumerateSubgroupMatrixConfigs call.

In PhysicalDevice::EnumerateSubgroupMatrixConfigs, we now simply iterate
over these results, filtering and populating the SubgroupMatrixConfigs.
This mimics what we do in the Vulkan backend.

Also make sure d3d12.h is included first, before other d3d12 headers
that may include it, so that the one from the Agility SDK include
directory is used. In this case, d3d11on12.h contains '#include
"d3d12.h"' with double-quotes, so it includes the one next to it in the
Windows SDK directory, since d3d11on12.h is not in the Agility SDK
includes. By swapping the order, the correct d3d12.h from Agility gets
included, then d3d11on12.h's include uses that one.

Bug: 525818824
Change-Id: Ifa2dd4043f4831d7934d58d251dc0d4deea83a80
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/320275
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
4 files changed
tree: ae15d8ea640b84cc5ac0fcc1cb8090ef828d14d9
  1. .github/
  2. .vscode/
  3. agents/
  4. build_overrides/
  5. docs/
  6. generator/
  7. include/
  8. infra/
  9. scripts/
  10. src/
  11. test/
  12. third_party/
  13. tools/
  14. webgpu-cts/
  15. build
  16. buildtools
  17. testing
  18. .bazelrc
  19. .bazelversion
  20. .clang-format
  21. .clang-format-ignore
  22. .clang-tidy
  23. .git-blame-ignore-revs
  24. .gitattributes
  25. .gitignore
  26. .gitmodules
  27. .gn
  28. .style.yapf
  29. .vpython3
  30. AUTHORS
  31. BUILD.bazel
  32. BUILD.gn
  33. CMakeLists.txt
  34. CMakeSettings.json
  35. CODE_OF_CONDUCT.md
  36. codereview.settings
  37. CONTRIBUTING.md
  38. CPPLINT.cfg
  39. DEPS
  40. DIR_METADATA
  41. go.mod
  42. go.sum
  43. go_presubmit_support.py
  44. LICENSE
  45. MODULE.bazel
  46. MODULE.bazel.lock
  47. OWNERS
  48. PRESUBMIT.py
  49. PRESUBMIT_test.py
  50. README.chromium
  51. README.md
  52. unsafe_buffers_paths.txt
  53. WATCHLISTS
  54. 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.