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23 lines
448 B
23 lines
448 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2020 ARM Ltd. |
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*/ |
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#ifndef __ASM_VDSO_PROCESSOR_H |
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#define __ASM_VDSO_PROCESSOR_H |
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#ifndef __ASSEMBLY__ |
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/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ |
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static __always_inline void rep_nop(void) |
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{ |
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asm volatile("rep; nop" ::: "memory"); |
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} |
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static __always_inline void cpu_relax(void) |
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{ |
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rep_nop(); |
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} |
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#endif /* __ASSEMBLY__ */ |
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#endif /* __ASM_VDSO_PROCESSOR_H */
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