On Fri, 25 Mar 2022 17:40:40 +0100
Helge Deller <deller@xxxxxx> wrote:
> Wait for next timer irq to trigger, then clear all pending external
> irqs before jumping into rendevous PDC loop.
*rendezvous
>
> Signed-off-by: Helge Deller <deller@xxxxxx>
> ---
> arch/parisc/kernel/smp.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
> index 60cc33fd345c..564442ac74c9 100644
> --- a/arch/parisc/kernel/smp.c
> +++ b/arch/parisc/kernel/smp.c
> @@ -491,6 +491,15 @@ int __cpu_disable(void)
>
> /* disable all irqs, including timer irq */
> local_irq_disable();
> +
> + /* wait for next timer irq ... */
> + mdelay(1000/HZ+100);
> +
> + /* ... and then clear all pending external irqs */
> + set_eiem(0);
> + mtctl(~0UL, CR_EIRR);
> + mfctl(CR_EIRR);
> + mtctl(0, CR_EIRR);
> #endif
> return 0;
> }
> --
> 2.35.1
>
Kind regards,
jer
