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/* Copyright (c) 2018, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef ODP_ARCH_CPU_INLINES_H_
#define ODP_ARCH_CPU_INLINES_H_
#include <stdint.h>
_ODP_INLINE void odp_cpu_pause(void)
{
#ifdef __SSE2__
__asm__ __volatile__ ("pause");
#else
__asm__ __volatile__ ("rep; nop");
#endif
}
_ODP_INLINE uint64_t odp_cpu_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;
}
_ODP_INLINE uint64_t odp_cpu_cycles_max(void)
{
return UINT64_MAX;
}
_ODP_INLINE uint64_t odp_cpu_cycles_resolution(void)
{
return 1;
}
#endif
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