xnu-792.21.3.tar.gz

[apple/xnu.git] / osfmk / i386 / commpage / commpage.h

diff --git a/osfmk/i386/commpage/commpage.h b/osfmk/i386/commpage/commpage.h
index a7c8d80c41df75e4a34b6bce851e839fca2c91eb..caa6cba68aedb11b49f6a8c50807d2dc9ee6ea70 100644 (file)
--- a/osfmk/i386/commpage/commpage.h
+++ b/osfmk/i386/commpage/commpage.h
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
 #ifndef _I386_COMMPAGE_H
@@ -66,6 +69,15 @@ extern       char    *commPagePtr;                           // virt address of commpage in kernel map
 
 extern void    commpage_set_timestamp(uint64_t tbr,uint32_t secs,uint32_t usecs,uint32_t ticks_per_sec);
 
+typedef struct {
+       uint64_t        nt_base_tsc;
+       uint64_t        nt_base_ns; 
+       uint32_t        nt_scale;
+       uint32_t        nt_shift;
+       uint64_t        nt_check_tsc;
+} commpage_nanotime_t;
+extern  void   commpage_set_nanotime(commpage_nanotime_t *new_nanotime);
+
 #endif /* __ASSEMBLER__ */
 
 #endif /* _I386_COMMPAGE_H */