On Mon, 2019-06-24 at 07:43 +0200, Christoph Hellwig wrote:
> Only call the SBI code if we are not running in M mode, and if we
> didn't
> do the SBI call, or it didn't succeed call wfi in a loop to at least
> save some power.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> arch/riscv/kernel/reset.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/riscv/kernel/reset.c b/arch/riscv/kernel/reset.c
> index d0fe623bfb8f..2f5ca379747e 100644
> --- a/arch/riscv/kernel/reset.c
> +++ b/arch/riscv/kernel/reset.c
> @@ -8,8 +8,11 @@
>
> static void default_power_off(void)
> {
> +#ifndef CONFIG_M_MODE
> sbi_shutdown();
> - while (1);
> +#endif
> + while (1)
> + wait_for_interrupt();
> }
>
> void (*pm_power_off)(void) = default_power_off;
Reviewed-by: Atish Patra <atish.patra@xxxxxxx>
Regards,
Atish
