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diff --git a/src/gpu-compute/ndrange.hh b/src/gpu-compute/ndrange.hh
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+/*
+ * Copyright (c) 2012-2015 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * For use for simulation and test purposes only
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Author: Steve Reinhardt
+ */
+
+#ifndef __NDRANGE_HH__
+#define __NDRANGE_HH__
+
+#include "base/types.hh"
+#include "gpu-compute/qstruct.hh"
+
+struct NDRange
+{
+    // copy of the queue entry provided at dispatch
+    HsaQueueEntry q;
+
+    // The current workgroup id (3 dimensions)
+    int wgId[3];
+    // The number of workgroups in each dimension
+    int numWg[3];
+    // The total number of workgroups
+    int numWgTotal;
+
+    // The number of completed work groups
+    int numWgCompleted;
+    // The global workgroup ID
+    uint32_t globalWgId;
+
+    // flag indicating whether all work groups have been launched
+    bool wg_disp_rem;
+    // kernel complete
+    bool execDone;
+    bool userDoorBellSet;
+    volatile bool *addrToNotify;
+    volatile uint32_t *numDispLeft;
+    int dispatchId;
+    int curTid; // Current thread id
+};
+
+#endif // __NDRANGE_HH__