1 files changed, 6 insertions, 5 deletions

diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index 2002f8d6d20a..6baab30dc2c8 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -1,13 +1,14 @@
 /*
- * linux/include/asm-i386/tsc.h
- *
- * i386 TSC related functions
+ * x86 TSC related functions
  */
-#ifndef _ASM_i386_TSC_H
-#define _ASM_i386_TSC_H
+#ifndef _ASM_X86_TSC_H
+#define _ASM_X86_TSC_H
 
 #include <asm/processor.h>
 
+#define NS_SCALE        10 /* 2^10, carefully chosen */
+#define US_SCALE        32 /* 2^32, arbitralrily chosen */
+
 /*
  * Standard way to access the cycle counter.
  */