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diff --git a/tools/null_state_gen/intel_batchbuffer.h b/tools/null_state_gen/intel_batchbuffer.h
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+++ b/tools/null_state_gen/intel_batchbuffer.h
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+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Copyright 2014 Intel Corporation
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#ifndef _INTEL_BATCHBUFFER_H
+#define _INTEL_BATCHBUFFER_H
+
+#include <stdint.h>
+
+#define MAX_RELOCS 64
+#define ALIGN(x, y) (((x) + (y)-1) & ~((y)-1))
+
+struct intel_batchbuffer {
+	int err;
+	uint8_t *base;
+	uint8_t *base_ptr;
+	uint8_t *state_base;
+	uint8_t *state_ptr;
+	int size;
+
+	uint32_t relocs[MAX_RELOCS];
+	uint32_t num_relocs;
+};
+
+#define OUT_BATCH(d) intel_batch_emit_dword(batch, d)
+#define OUT_RELOC(batch, read_domains, write_domain, delta) \
+	intel_batch_emit_reloc(batch, delta)
+
+int intel_batch_reset(struct intel_batchbuffer *batch,
+		       void *p,
+		       uint32_t size, uint32_t split_off);
+
+uint32_t intel_batch_state_used(struct intel_batchbuffer *batch);
+
+void *intel_batch_state_alloc(struct intel_batchbuffer *batch,
+			      uint32_t size,
+			      uint32_t align);
+
+int intel_batch_offset(struct intel_batchbuffer *batch, const void *ptr);
+
+int intel_batch_state_copy(struct intel_batchbuffer *batch,
+			   const void *ptr,
+			   const uint32_t size,
+			   const uint32_t align);
+
+uint32_t intel_batch_cmds_used(struct intel_batchbuffer *batch);
+
+int intel_batch_emit_dword(struct intel_batchbuffer *batch, uint32_t dword);
+
+int intel_batch_emit_reloc(struct intel_batchbuffer *batch,
+			   const uint32_t delta);
+
+uint32_t intel_batch_total_used(struct intel_batchbuffer *batch);
+
+static inline int intel_batch_error(struct intel_batchbuffer *batch)
+{
+	return batch->err;
+}
+
+static inline uint32_t intel_batch_state_start(struct intel_batchbuffer *batch)
+{
+	return batch->state_base - batch->base;
+}
+
+#endif