1 files changed, 12 insertions, 0 deletions
diff --git a/components/script/dom/webidls/GPUMapMode.webidl b/components/script/dom/webidls/GPUMapMode.webidl
new file mode 100644
index 00000000000..0dc52c4b448
--- /dev/null
+++ b/components/script/dom/webidls/GPUMapMode.webidl
@@ -0,0 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// https://gpuweb.github.io/gpuweb/#gpumapmode
+[Exposed=(Window, DedicatedWorker), Pref="dom.webgpu.enabled"]
+interface GPUMapMode {
+    const GPUMapModeFlags READ  = 0x0001;
+    const GPUMapModeFlags WRITE = 0x0002;
+};
+
+typedef [EnforceRange] unsigned long GPUMapModeFlags;