platform/linux-generic/arch/x86/odp_time_cycles.c


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/* Copyright (c) 2015, Linaro Limited
 * All rights reserved.
 *
 * SPDX-License-Identifier:     BSD-3-Clause
 */
#include <odp/time.h>

uint64_t odp_time_cycles(void)
{
	union {
		uint64_t tsc_64;
		struct {
			uint32_t lo_32;
			uint32_t hi_32;
		};
	} tsc;

	__asm__ __volatile__ ("rdtsc" :
		     "=a" (tsc.lo_32),
		     "=d" (tsc.hi_32) : : "memory");

	return tsc.tsc_64;
}