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f6e64b6662
We force select CPU_PM and provide asm/cpuidle.h so that we can use CPU IDLE drivers for Linux RISC-V kernel. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <apatel@vetanamicro.com> Reviewed-by: Guo Ren <guoren@kernel.org> Reviewed-by: Atish Patra <atishp@rivosinc.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
25 lines
450 B
C
25 lines
450 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2021 Allwinner Ltd
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* Copyright (C) 2021 Western Digital Corporation or its affiliates.
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*/
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#ifndef _ASM_RISCV_CPUIDLE_H
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#define _ASM_RISCV_CPUIDLE_H
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#include <asm/barrier.h>
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#include <asm/processor.h>
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static inline void cpu_do_idle(void)
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{
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/*
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* Add mb() here to ensure that all
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* IO/MEM accesses are completed prior
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* to entering WFI.
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*/
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mb();
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wait_for_interrupt();
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}
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#endif
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