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64 #ifndef _RTE_CYCLES_X86_64_H_
65 #define _RTE_CYCLES_X86_64_H_
71 #include "generic/rte_cycles.h"
73 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
74 /* Global switch to use VMWARE mapping of TSC instead of RDTSC */
75 extern int rte_cycles_vmware_tsc_map;
76 #include <rte_branch_prediction.h>
79 static inline uint64_t
90 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
91 if (unlikely(rte_cycles_vmware_tsc_map)) {
92 /* ecx = 0x10000 corresponds to the physical TSC for VMware */
93 asm volatile("rdpmc" :
101 asm volatile("rdtsc" :
107 static inline uint64_t
108 rte_rdtsc_precise(void)
114 static inline uint64_t
115 rte_get_tsc_cycles(void) { return rte_rdtsc(); }
121 #endif /* _RTE_CYCLES_X86_64_H_ */