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diff --git a/src/amdgpu_dri2.h b/src/amdgpu_dri2.h
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+/*
+ * Copyright 2008 Jerome Glisse
+ *
+ * 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 on 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 (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 ATI, VA LINUX SYSTEMS AND/OR
+ * THEIR 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 AMDGPU_DRI2_H
+#define AMDGPU_DRI2_H
+
+#include <xorg-server.h>
+
+struct amdgpu_dri2 {
+	drmVersionPtr pKernelDRMVersion;
+	int drm_fd;
+	Bool available;
+	Bool enabled;
+	char *device_name;
+};
+
+#ifdef DRI2
+
+#include "dri2.h"
+Bool amdgpu_dri2_screen_init(ScreenPtr pScreen);
+void amdgpu_dri2_close_screen(ScreenPtr pScreen);
+
+int drmmode_get_crtc_id(xf86CrtcPtr crtc);
+void amdgpu_dri2_frame_event_handler(unsigned int frame, unsigned int tv_sec,
+				     unsigned int tv_usec, void *event_data);
+void amdgpu_dri2_flip_event_handler(unsigned int frame, unsigned int tv_sec,
+				    unsigned int tv_usec, void *event_data);
+
+#else
+
+static inline Bool amdgpu_dri2_screen_init(ScreenPtr pScreen)
+{
+	return FALSE;
+}
+
+static inline void amdgpu_dri2_close_screen(ScreenPtr pScreen)
+{
+}
+
+static inline void
+amdgpu_dri2_dummy_event_handler(unsigned int frame, unsigned int tv_sec,
+				unsigned int tv_usec, void *event_data,
+				const char *name)
+{
+	static Bool warned;
+
+	if (!warned) {
+		ErrorF("%s called but DRI2 disabled at build time\n", name);
+		warned = TRUE;
+	}
+
+	free(event_data);
+}
+
+static inline void
+amdgpu_dri2_frame_event_handler(unsigned int frame, unsigned int tv_sec,
+				unsigned int tv_usec, void *event_data)
+{
+	amdgpu_dri2_dummy_event_handler(frame, tv_sec, tv_usec, event_data,
+					__func__);
+}
+
+static inline void
+amdgpu_dri2_flip_event_handler(unsigned int frame, unsigned int tv_sec,
+			       unsigned int tv_usec, void *event_data)
+{
+	amdgpu_dri2_dummy_event_handler(frame, tv_sec, tv_usec, event_data,
+					__func__);
+}
+
+#endif
+
+#endif /* AMDGPU_DRI2_H */