From 8202cfc395cd9930bae8ba5ac8b9d54ed64e76d4 Mon Sep 17 00:00:00 2001
From: Phillis Tang <phillis@chromium.org>
Date: Thu, 29 May 2025 16:59:30 -0700
Subject: [PATCH] define graph.devices

---
 index.bs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/index.bs b/index.bs
index 1fe3a244..85eafe3f 100644
--- a/index.bs
+++ b/index.bs
@@ -1374,8 +1374,15 @@ A {{MLContext}} <dfn for=MLContext lt="is lost|is not lost">is lost</dfn> if its
 The {{MLGraph}} interface represents a compiled computational graph. A compiled graph once constructed is immutable and cannot be subsequently changed.
 
 <script type=idl>
+enum MLDeviceType {
+  "cpu",
+  "gpu",
+  "npu"
+};
+
 [SecureContext, Exposed=(Window, Worker)]
 interface MLGraph {
+  readonly attribute FrozenArray<MLDeviceType> devices;
   undefined destroy();
 };
 </script>
@@ -1405,6 +1412,17 @@ interface MLGraph {
   </dl>
 </div>
 
+### {{MLGraph/devices}} ### {#api-mlgraph-devices}
+The <dfn attribute for=MLGraph>devices</dfn> attribute is a {{FrozenArray}} containing the list of {{MLDeviceType}}s that the {{MLGraph}} will be executed on. A graph could be executed on multiple types of devices that are one of following:
+<dl dfn-for="MLDeviceType">
+<dt>"<dfn enum-value>cpu</dfn>"</dt>
+<dd>CPU devices.</dd>
+<dt>"<dfn enum-value>gpu</dfn>"</dt>
+<dd>GPU devices.</dd>
+<dt>"<dfn enum-value>npu</dfn>"</dt>
+<dd>Devices that are not CPU or GPU and have ML acceleration.</dd>
+</dl>
+
 ### {{MLGraph/destroy()}}  ### {#api-mlgraph-destroy}
 
 The {{MLGraph/destroy()}} method can be called to release all resources associated with the graph.