arch/riscv/include/asm/cpuidle.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2021 Allwinner Ltd
   4  * Copyright (C) 2021 Western Digital Corporation or its affiliates.
   5  */
   6
   7 #ifndef _ASM_RISCV_CPUIDLE_H
   8 #define _ASM_RISCV_CPUIDLE_H
   9
  10 #include <asm/barrier.h>
  11 #include <asm/processor.h>
  12
  13 static inline void cpu_do_idle(void)
  14 {
  15         /*
  16          * Add mb() here to ensure that all
  17          * IO/MEM accesses are completed prior
  18          * to entering WFI.
  19          */
  20         mb();
  21         wait_for_interrupt();
  22 }
  23
  24 #endif