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Index: sys/amd64/include/cpufunc.h
===================================================================
--- sys/amd64/include/cpufunc.h
+++ sys/amd64/include/cpufunc.h
@@ -364,6 +364,15 @@
return (low | ((uint64_t)high << 32));
}
+static __inline uint64_t
+rdtscp_aux(uint32_t *aux)
+{
+ uint32_t low, high;
+
+ __asm __volatile("rdtscp" : "=a" (low), "=d" (high), "=c" (*aux));
+ return (low | ((uint64_t)high << 32));
+}
+
static __inline uint32_t
rdtsc32(void)
{
Index: sys/i386/include/cpufunc.h
===================================================================
--- sys/i386/include/cpufunc.h
+++ sys/i386/include/cpufunc.h
@@ -403,6 +403,15 @@
return (rv);
}
+static __inline uint64_t
+rdtscp_aux(uint32_t *aux)
+{
+ uint64_t rv;
+
+ __asm __volatile("rdtscp" : "=A" (rv), "=c" (*aux));
+ return (rv);
+}
+
static __inline uint32_t
rdtsc32(void)
{

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