diff --git a/sysdeps/x86_64/hp-timing.h b/sysdeps/x86_64/hp-timing.h
index d88206c..886c500 100644
--- a/sysdeps/x86_64/hp-timing.h
+++ b/sysdeps/x86_64/hp-timing.h
@@ -18,23 +18,6 @@
 
 #ifndef _HP_TIMING_H
 
-/* We can use some of the i686 implementation without changes.  */
-# include <sysdeps/i386/i686/hp-timing.h>
-
-/* The "=A" constraint used in 32-bit mode does not work in 64-bit mode.  */
-# undef HP_TIMING_NOW
-# define HP_TIMING_NOW(Var) \
-  ({ unsigned int _hi, _lo; \
-     asm volatile ("rdtsc" : "=a" (_lo), "=d" (_hi)); \
-     (Var) = ((unsigned long long int) _hi << 32) | _lo; })
-
-/* The funny business for 32-bit mode is not required here.  */
-# undef HP_TIMING_ACCUM
-# define HP_TIMING_ACCUM(Sum, Diff)					      \
-  do {									      \
-    hp_timing_t __diff = (Diff) - GLRO(dl_hp_timing_overhead);		      \
-    __asm__ __volatile__ ("lock; addq %1, %0"				      \
-			  : "=m" (Sum) : "r" (__diff), "m" (Sum));	      \
-  } while (0)
+#include <sysdeps/generic/hp-timing.h>
 
 #endif /* hp-timing.h */