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 25