diff --git a/src/gallium/frontends/rusticl/api/device.rs b/src/gallium/frontends/rusticl/api/device.rs
index c1cb7902e03..826b4ac793b 100644
--- a/src/gallium/frontends/rusticl/api/device.rs
+++ b/src/gallium/frontends/rusticl/api/device.rs
@@ -372,6 +372,20 @@ fn release_device(_device: cl_device_id) -> CLResult<()> {
     Ok(())
 }
 
+#[cl_entrypoint(clCreateSubDevices)]
+fn create_sub_devices(
+    _device: cl_device_id,
+    _properties: *const cl_device_partition_property,
+    _num_devices: cl_uint,
+    _out_devices: *mut cl_device_id,
+    _num_devices_ret: *mut cl_uint,
+) -> CLResult<()> {
+    // CL_INVALID_VALUE if values specified in properties are not valid or
+    // if values specified in properties are valid but not supported by the
+    // device.
+    Err(CL_INVALID_VALUE)
+}
+
 #[cl_entrypoint(clGetDeviceAndHostTimer)]
 fn get_device_and_host_timer(
     device: cl_device_id,
diff --git a/src/gallium/frontends/rusticl/api/icd.rs b/src/gallium/frontends/rusticl/api/icd.rs
index 71215333cf2..47bd38fa514 100644
--- a/src/gallium/frontends/rusticl/api/icd.rs
+++ b/src/gallium/frontends/rusticl/api/icd.rs
@@ -115,7 +115,7 @@ pub static DISPATCH: cl_icd_dispatch = cl_icd_dispatch {
     clRetainDeviceEXT: None,
     clReleaseDeviceEXT: None,
     clCreateEventFromGLsyncKHR: None,
-    clCreateSubDevices: None,
+    clCreateSubDevices: Some(clCreateSubDevices),
     clRetainDevice: Some(clRetainDevice),
     clReleaseDevice: Some(clReleaseDevice),
     clCreateImage: Some(clCreateImage),