| /* 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 */ |
