mirror of https://github.com/F-Stack/f-stack.git
48 lines
723 B
C
48 lines
723 B
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2022 Loongson Technology Corporation Limited
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*/
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#ifndef RTE_CYCLES_LOONGARCH_H
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#define RTE_CYCLES_LOONGARCH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "generic/rte_cycles.h"
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/**
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* Read the time base register.
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*
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* @return
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* The time base for this lcore.
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*/
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static inline uint64_t
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rte_rdtsc(void)
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{
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uint64_t count;
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__asm__ __volatile__ (
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"rdtime.d %[cycles], $zero\n"
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: [cycles] "=r" (count)
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::
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);
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return count;
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}
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static inline uint64_t
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rte_rdtsc_precise(void)
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{
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rte_mb();
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return rte_rdtsc();
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}
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static inline uint64_t
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rte_get_tsc_cycles(void) { return rte_rdtsc(); }
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#ifdef __cplusplus
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}
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#endif
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#endif /* RTE_CYCLES_LOONGARCH_H */
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