LCOV - code coverage report
Current view: top level - arch/x86/include/asm/vdso - processor.h (source / functions) Hit Total Coverage
Test: landlock.info Lines: 5 5 100.0 %
Date: 2021-04-22 12:43:58 Functions: 0 0 -

          Line data    Source code
       1             : /* SPDX-License-Identifier: GPL-2.0-only */
       2             : /*
       3             :  * Copyright (C) 2020 ARM Ltd.
       4             :  */
       5             : #ifndef __ASM_VDSO_PROCESSOR_H
       6             : #define __ASM_VDSO_PROCESSOR_H
       7             : 
       8             : #ifndef __ASSEMBLY__
       9             : 
      10             : /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
      11     8908966 : static __always_inline void rep_nop(void)
      12             : {
      13     8908966 :         asm volatile("rep; nop" ::: "memory");
      14             : }
      15             : 
      16     8905987 : static __always_inline void cpu_relax(void)
      17             : {
      18     8905987 :         rep_nop();
      19     1578369 : }
      20             : 
      21             : #endif /* __ASSEMBLY__ */
      22             : 
      23             : #endif /* __ASM_VDSO_PROCESSOR_H */

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