xnu-7195.101.1.tar.gz

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

diff --git a/osfmk/i386/tsc.h b/osfmk/i386/tsc.h
index e702ec234b818f0815cb7d23619046d7640f1072..936f4ea47359e018d3b51b82d0017ab394485c56 100644 (file)
--- a/osfmk/i386/tsc.h
+++ b/osfmk/i386/tsc.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2004-2007 Apple 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
@@ -11,10 +11,10 @@
  * 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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -22,7 +22,7 @@
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
@@ -40,34 +40,38 @@
 #ifndef _I386_TSC_H_
 #define _I386_TSC_H_
 
-#define BASE_NHM_CLOCK_SOURCE  139806638ULL
-#define IA32_PERF_STS          0x198
+#define BASE_NHM_CLOCK_SOURCE   133333333ULL
+#define BASE_ART_CLOCK_SOURCE           24000000ULL     /* 24MHz */
+#define BASE_ART_CLOCK_SOURCE_SP        25000000ULL     /* 25MHz */
+#define IA32_PERF_STS                   0x198
+#define SLOW_TSC_THRESHOLD      1000067800      /* if slower, nonzero shift required in nanotime() algorithm */
 
-extern uint64_t        busFCvtt2n;
-extern uint64_t        busFCvtn2t;
+#ifndef ASSEMBLER
+extern uint64_t busFCvtt2n;
+extern uint64_t busFCvtn2t;
 extern uint64_t tscFreq;
 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;
+extern uint32_t flex_ratio;
+extern uint32_t flex_ratio_min;
+extern uint32_t flex_ratio_max;
+extern uint64_t tsc_at_boot;
 
-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        busFreq;
-       uint32_t        flex_ratio;
-       uint32_t        flex_ratio_min;
-       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        busFreq;
+       uint32_t        flex_ratio;
+       uint32_t        flex_ratio_min;
+       uint32_t        flex_ratio_max;
 };
 typedef struct tscInfo tscInfo_t;
 
@@ -75,5 +79,11 @@ extern void tsc_get_info(tscInfo_t *info);
 
 extern void tsc_init(void);
 
+#if DEVELOPMENT || DEBUG
+extern void cpu_data_tsc_sync_deltas_string(char *buf, uint32_t buflen,
+    uint32_t start_cpu, uint32_t end_cpu);
+#endif
+
+#endif /* ASSEMBLER */
 #endif /* _I386_TSC_H_ */
 #endif /* KERNEL_PRIVATE */