On 1/16/24 11:05 AM, Bibo Mao wrote:
> During suspend and resume, other CPUs are hot-unpluged and IRQs are
> migrated to CPU0. So it is not necessary to restore irq affinity for
> eiointc irq controller.
>
> Also there is some optimization for the interrupt dispatch function
> eiointc_irq_dispatch. There are 256 IRQs supported for eiointc, eiointc
> irq handler reads the bitmap and find pending irqs when irq happens.
> So there are four times of consecutive iocsr_read64 operations for the
> total 256 bits to find all pending irqs. If the pending bitmap is zero,
> it means that there is no pending irq for the this irq bitmap range,
> we can skip handling to avoid some useless operations sush as clearing
s/sush/such/?
> hw ISR.
This sounds like you need 2 patches to deal with 2 separate issues...
> Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx>
[...]
MBR, Sergey
