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chromium / chromium / src / d199409f6411a7e96d4649f73f7e2b9ece378dfc
commitd199409f6411a7e96d4649f73f7e2b9ece378dfc[log] [tgz]
authorBryan Bernhart <bryan.bernhart@intel.com>Wed May 07 19:39:23 2025
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed May 07 19:39:23 2025
treedcc7d6666425388741d75518ccee61857dbc313d
parent0e29ab4b1eddf18365ba5c4b41bce0a8c7a00e34 [diff]
WebNN: Implement begin/end access in DML backend

Allows `TensorImplDml` instances to be used by the GPU
service through a backend-specific interface which implements
BeginAccess and EndAccess to sync contents with another GPU
command queue.

Upon end access, WebNN outputs its submission fence which another
queue waits for WebNN to signal. Once WebNN's wait has completed, GPU
work using this tensor from another queue can occur. To begin access,
a fence is provided as input for WebNN to wait on which another queue
signals upon completion.

Tensors are created by default with begin access. Once
access ends, the tensor is unusable in WebNN context operations to
ensure no data hazard between queues. Once access begin, WebNN resumes
use of the tensor by the context.

This change does not touch the renderer: it is entirely within the WebNN
service.

Bug: 345352987
Change-Id: I612eefaabb7aa608485c21a4ecf2ff370c7faeec
Cq-Include-Trybots: luci.chromium.try:win11-blink-rel
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5621864
Reviewed-by: ningxin hu <ningxin.hu@intel.com>
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1457202}
11 files changed
tree: dcc7d6666425388741d75518ccee61857dbc313d
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. codelabs/
  13. components/
  14. content/
  15. crypto/
  16. dbus/
  17. device/
  18. docs/
  19. extensions/
  20. fuchsia_web/
  21. gin/
  22. google_apis/
  23. gpu/
  24. headless/
  25. infra/
  26. ios/
  27. ipc/
  28. media/
  29. mojo/
  30. native_client_sdk/
  31. net/
  32. pdf/
  33. ppapi/
  34. printing/
  35. remoting/
  36. rlz/
  37. sandbox/
  38. services/
  39. skia/
  40. sql/
  41. storage/
  42. styleguide/
  43. testing/
  44. third_party/
  45. tools/
  46. ui/
  47. url/
  48. webkit/
  49. clank
  50. internal
  51. ios_internal
  52. native_client
  53. signing_keys
  54. v8
  55. .clang-format
  56. .clang-tidy
  57. .clangd
  58. .git-blame-ignore-revs
  59. .gitallowed
  60. .gitattributes
  61. .gitignore
  62. .gitmodules
  63. .gn
  64. .mailmap
  65. .rustfmt.toml
  66. .vpython3
  67. .yapfignore
  68. ATL_OWNERS
  69. AUTHORS
  70. BUILD.gn
  71. CODE_OF_CONDUCT.md
  72. codereview.settings
  73. CPPLINT.cfg
  74. CRYPTO_OWNERS
  75. DEPS
  76. DIR_METADATA
  77. LICENSE
  78. LICENSE.chromium_os
  79. OWNERS
  80. PRESUBMIT.py
  81. PRESUBMIT_test.py
  82. PRESUBMIT_test_mocks.py
  83. README.md
  84. WATCHLISTS
README.md

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