Quoting Chris Wilson (2018-05-09 15:28:00)
> Continuing the theme of bypassing ksoftirqd latency, also first try to
> directly submit from the CS interrupt handler to clear the ELSP and
> queue the next.
>
> In the past, we have been hesitant to do this as the context switch
> processing has been
Continuing the theme of bypassing ksoftirqd latency, also first try to
directly submit from the CS interrupt handler to clear the ELSP and
queue the next.
In the past, we have been hesitant to do this as the context switch
processing has been quite heavy, requiring forcewaked mmio. However, as
we
