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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2020 ARM Ltd. */ #ifndef __ASM_VDSO_PROCESSOR_H #define __ASM_VDSO_PROCESSOR_H #ifndef __ASSEMBLY__ /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ static __always_inline void rep_nop(void) { asm volatile("rep; nop" ::: "memory"); } static __always_inline void cpu_relax(void) { rep_nop(); } struct getcpu_cache; notrace long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused); #endif /* __ASSEMBLY__ */ #endif /* __ASM_VDSO_PROCESSOR_H */
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