mirror of https://github.com/F-Stack/f-stack.git
32 lines
642 B
C
32 lines
642 B
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2022 StarFive
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* Copyright(c) 2022 SiFive
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* Copyright(c) 2022 Semihalf
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*/
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#ifndef RTE_PAUSE_RISCV_H
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#define RTE_PAUSE_RISCV_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "rte_atomic.h"
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#include "generic/rte_pause.h"
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static inline void rte_pause(void)
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{
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/* Insert pause hint directly to be compatible with old compilers.
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* This will work even on platforms without Zihintpause extension
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* because this is a FENCE hint instruction which evaluates to NOP.
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*/
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asm volatile(".int 0x0100000F" : : : "memory");
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* RTE_PAUSE_RISCV_H */
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