162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2021 Allwinner Ltd 462306a36Sopenharmony_ci * Copyright (C) 2021 Western Digital Corporation or its affiliates. 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#ifndef _ASM_RISCV_CPUIDLE_H 862306a36Sopenharmony_ci#define _ASM_RISCV_CPUIDLE_H 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#include <asm/barrier.h> 1162306a36Sopenharmony_ci#include <asm/processor.h> 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_cistatic inline void cpu_do_idle(void) 1462306a36Sopenharmony_ci{ 1562306a36Sopenharmony_ci /* 1662306a36Sopenharmony_ci * Add mb() here to ensure that all 1762306a36Sopenharmony_ci * IO/MEM accesses are completed prior 1862306a36Sopenharmony_ci * to entering WFI. 1962306a36Sopenharmony_ci */ 2062306a36Sopenharmony_ci mb(); 2162306a36Sopenharmony_ci wait_for_interrupt(); 2262306a36Sopenharmony_ci} 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ci#endif 25