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diff --git a/src/wsbm_cs.h b/src/wsbm_cs.h
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+/**************************************************************************
+ *
+ * Copyright 2006-2009 Vmware, Inc., Palo Alto, CA., USA
+ * 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
+ */
+
+#ifndef _WSBM_CS_H_
+#define _WSBM_CS_H_
+#include "wsbm_driver.h"
+
+struct _WsbmFenceObject;
+struct _WsbmBufferObject;
+struct _ValidateList;
+
+#define WSBM_PLACEMENT_MASK ((uint64_t) 0xFFFFFFFFULL)
+
+extern struct _WsbmBufferList *wsbmBOCreateList(int target,
+						int hasKernelBuffers,
+						const struct _WsbmDriver *kernelDriver,
+						const struct _WsbmDriver *userDriver);
+
+extern int wsbmBOResetList(struct _WsbmBufferList *list);
+extern int wsbmBOAddListItem(struct _WsbmBufferList *list,
+			     struct _WsbmBufferObject *buf,
+			     uint64_t flags, uint64_t mask, int *itemLoc,
+			     struct _ValidateNode **node);
+
+extern void wsbmBOFreeList(struct _WsbmBufferList *list);
+extern int wsbmBOFenceUserList(struct _WsbmBufferList *list,
+			       struct _WsbmFenceObject *fence);
+
+extern int wsbmBOUnrefUserList(struct _WsbmBufferList *list);
+extern int wsbmBOValidateUserList(struct _WsbmBufferList *list);
+extern int wsbmBOUnvalidateUserList(struct _WsbmBufferList *list);
+
+extern struct _ValidateList *wsbmGetKernelValidateList(struct _WsbmBufferList
+						       *list);
+extern struct _ValidateList *wsbmGetUserValidateList(struct _WsbmBufferList
+						     *list);
+
+extern struct _ValidateNode *validateListNode(void *iterator);
+extern void *validateListIterator(struct _ValidateList *list);
+extern void *validateListNext(struct _ValidateList *list, void *iterator);
+
+#endif