xnu-2422.1.72.tar.gz

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

diff --git a/osfmk/i386/tsc.h b/osfmk/i386/tsc.h
index 71d2d652794d62611996067ce5543a504b526969..42bb9684d1fbc5d023086016baf75c0c9214f00b 100644 (file)
--- a/osfmk/i386/tsc.h
+++ b/osfmk/i386/tsc.h
@@ -1,23 +1,29 @@
 /*
- * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2004-2007 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@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -34,10 +40,11 @@
 #ifndef _I386_TSC_H_
 #define _I386_TSC_H_
 
-#define BusRatioShift 40
-#define BusRatioMask 0x1F
-#define IA32_PERF_STS 0x198
+#define BASE_NHM_CLOCK_SOURCE  133333333ULL
+#define IA32_PERF_STS          0x198
+#define        SLOW_TSC_THRESHOLD      1000067800      /* if slower, nonzero shift required in nanotime() algorithm */
 
+#ifndef ASSEMBLER
 extern uint64_t        busFCvtt2n;
 extern uint64_t        busFCvtn2t;
 extern uint64_t tscFreq;
@@ -45,22 +52,30 @@ extern uint64_t tscFCvtt2n;
 extern uint64_t tscFCvtn2t;
 extern uint64_t tscGranularity;
 extern uint64_t bus2tsc;
+extern uint64_t busFreq;
+extern uint32_t        flex_ratio;
+extern uint32_t        flex_ratio_min;
+extern uint32_t        flex_ratio_max;
 
 struct tscInfo
 {
-uint64_t       busFCvtt2n;
-uint64_t       busFCvtn2t;
-uint64_t       tscFreq;
-uint64_t       tscFCvtt2n;
-uint64_t       tscFCvtn2t;
-uint64_t       tscGranularity;
-uint64_t       bus2tsc;
+       uint64_t        busFCvtt2n;
+       uint64_t        busFCvtn2t;
+       uint64_t        tscFreq;
+       uint64_t        tscFCvtt2n;
+       uint64_t        tscFCvtn2t;
+       uint64_t        tscGranularity;
+       uint64_t        bus2tsc;
+       uint64_t        busFreq;
+       uint32_t        flex_ratio;
+       uint32_t        flex_ratio_min;
+       uint32_t        flex_ratio_max;
 };
 typedef struct tscInfo tscInfo_t;
 
 extern void tsc_get_info(tscInfo_t *info);
 
 extern void tsc_init(void);
-
+#endif /* ASSEMBLER */
 #endif /* _I386_TSC_H_ */
 #endif /* KERNEL_PRIVATE */