[PATCH v2] lib: sbi: skip wait_for_coldboot when coolboot done

[Anup Patel]

On Sun, Dec 10, 2023 at 8:55 PM Xiang W <wxjstz at 126.com> wrote:
>
> When warmboot via HSM, coolboot has been completed and
> wait_for_coldboot can be skipped to speed up.
>
> Signed-off-by: Xiang W <wxjstz at 126.com>

Looks good to me.

Reviewed-by: Anup Patel <anup at brainfault.org>

Thanks,
Anup

> ---
> v2 changes: move coolboot_done check to wait_for_coldboot
>
>  lib/sbi/sbi_init.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c
> index e723553..e88c3b1 100644
> --- a/lib/sbi/sbi_init.c
> +++ b/lib/sbi/sbi_init.c
> @@ -195,6 +195,9 @@ static void wait_for_coldboot(struct sbi_scratch *scratch, u32 hartid)
>  {
>         unsigned long saved_mie, cmip;
>
> +       if (__smp_load_acquire(&coldboot_done))
> +               return;
> +
>         /* Save MIE CSR */
>         saved_mie = csr_read(CSR_MIE);
>
> --
> 2.42.0
>
>
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