xnu-3789.60.24.tar.gz

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

diff --git a/osfmk/i386/tsc.h b/osfmk/i386/tsc.h
index f6c5eba785e926d818d4a638b9b7a701768c1fcb..1d084859be1308921b01b7c2cf14359af881597f 100644 (file)
--- a/osfmk/i386/tsc.h
+++ b/osfmk/i386/tsc.h
@@ -41,8 +41,11 @@
 #define _I386_TSC_H_
 
 #define BASE_NHM_CLOCK_SOURCE  133333333ULL
+#define BASE_ART_CLOCK_SOURCE  24000000ULL     /* 24Mhz */
 #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;
@@ -54,6 +57,7 @@ extern uint64_t busFreq;
 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
 {
@@ -74,6 +78,6 @@ 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 */