xnu-1228.15.4.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 2a5aaae11535476071034b7b13e074535c0a50ec..0288a906cd26fa651a7de197ab63d2b5691e4d60 100644 (file)
--- a/osfmk/i386/commpage/commpage.h
+++ b/osfmk/i386/commpage/commpage.h
@@ -1,23 +1,29 @@
 /*
- * Copyright (c) 2003-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2007 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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. 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * 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
@@ -66,15 +72,31 @@ typedef     struct  commpage_descriptor     {
 } commpage_descriptor;
 
 
+/* Warning: following structure must match the layout of the commpage.  */
+/* This is the data starting at _COMM_PAGE_TIME_DATA_START, ie for nanotime() and gettimeofday() */
+
+typedef        volatile struct commpage_time_data      {
+       uint64_t        nt_tsc_base;                            // _COMM_PAGE_NT_TSC_BASE
+       uint32_t        nt_scale;                               // _COMM_PAGE_NT_SCALE
+       uint32_t        nt_shift;                               // _COMM_PAGE_NT_SHIFT
+       uint64_t        nt_ns_base;                             // _COMM_PAGE_NT_NS_BASE
+       uint32_t        nt_generation;                          // _COMM_PAGE_NT_GENERATION
+       uint32_t        gtod_generation;                        // _COMM_PAGE_GTOD_GENERATION
+       uint64_t        gtod_ns_base;                           // _COMM_PAGE_GTOD_NS_BASE
+       uint64_t        gtod_sec_base;                          // _COMM_PAGE_GTOD_SEC_BASE
+} commpage_time_data;
+
+
 extern char    *commPagePtr32;                         // virt address of 32-bit commpage in kernel map
 extern char    *commPagePtr64;                         // ...and of 64-bit commpage
 
-extern void    _commpage_set_timestamp(uint64_t abstime, uint64_t secs);
-#define commpage_set_timestamp(x, y, z)                _commpage_set_timestamp((x), (y))
+extern void    commpage_set_timestamp(uint64_t abstime, uint64_t secs);
+
+extern void    commpage_disable_timestamp( void );
 
 extern  void   commpage_set_nanotime(uint64_t tsc_base, uint64_t ns_base, uint32_t scale, uint32_t shift);
 
-#include <kern/page_decrypt.h>
+extern void    commpage_sched_gen_inc(void);
 
 #endif /* __ASSEMBLER__ */