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diff --git a/userspace/sdks/nv570/inc/class/cl00da.h b/userspace/sdks/nv570/inc/class/cl00da.h
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+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <nvtypes.h>
+
+//
+// This file was generated with FINN, an NVIDIA coding tool.
+// Source file:      class/cl00da.finn
+//
+
+
+
+/*
+* NV_SEMAPHORE_SURFACE
+*   A semaphore surface object contains a GPU-and-CPU-accessible memory region
+*   containing semaphores, associated monitored fence values, and any other
+*   related data necessary to implement a circular 32-bit or monotonic 64-bit
+*   incrementing semaphore primitive and associated event delivery.
+*/
+#define NV_SEMAPHORE_SURFACE (0xdaU) /* finn: Evaluated from "NV_SEMAPHORE_SURFACE_ALLOC_PARAMETERS_MESSAGE_ID" */
+
+ /*
+  * NV_SEMAPHORE_SURFACE_WAIT_VALUE
+  *   The notification index used when registering events with the RM event
+  *   subsystem.  RM clients should not need to use this value, as they don't
+  *   allocate events against this class themselves.  Rather, they specify an
+  *   OS event when registering a CPU waiter, and semaphore surface takes care
+  *   of creating event objects internally as necessary, similar to the event
+  *   buffer record notification OS event mechanism.
+  */
+#define NV_SEMAPHORE_SURFACE_WAIT_VALUE             (0x00000000)
+
+/*
+* NV_SEMAPHORE_SURFACE_ALLOC_PARAMETERS
+*
+*   hSemaphoreMem [IN]
+*       The handle to the memory used for the semaphore value and, when
+*       supported, the monitored fence/conditional interrupt value. Must be
+*       accessible by the GPU corresponding to the parent of the semaphore
+*       surface, as well as the CPU.
+*
+*   hMaxSubmittedMem [IN]
+*       The handle to the memory used to track the maximum signal value
+*       submitted to the GPU for processing for a given semaphore slot in
+*       hSemaphoreMem. This memory is only accessed by the CPU, but must
+*       support a CPU mapping that allows the use of 64-bit atomic exchange
+*       operations. This may be the same memory object as hSemaphoreMem if it is
+*       possible to create one memory object that supports all the requirements
+*       for a given GPU and CPU. This handle may be omitted/set to zero on GPUs
+*       that do not require maximum submitted value tracking.
+*
+*   flags [IN]
+*       Flags affecting the semaphore surface allocation. Currently, there are
+*       not valid flags, so this value must be set to zero.
+*/
+#define NV_SEMAPHORE_SURFACE_ALLOC_PARAMETERS_MESSAGE_ID (0x00DAU)
+
+typedef struct NV_SEMAPHORE_SURFACE_ALLOC_PARAMETERS {
+    NvHandle hSemaphoreMem;
+    NvHandle hMaxSubmittedMem;
+    NV_DECLARE_ALIGNED(NvU64 flags, 8);
+} NV_SEMAPHORE_SURFACE_ALLOC_PARAMETERS;
+