On Fri, Oct 25 2024 at 18:06, Jinjie Ruan wrote:
> As the front patch 6 ~ 13 did, the arm64_preempt_schedule_irq() is
Once this series is applied nobody knows what 'front patch 6 ~ 13' did.
> same with the irq preempt schedule code of generic entry besides those
> architecture-related logic called arm64_irqentry_exit_need_resched().
>
> So add arch irqentry_exit_need_resched() to support architecture-related
> need_resched() check logic, which do not affect existing architectures
> that use generic entry, but support arm64 to use generic irq entry.
Simply say:
ARM64 requires an additional whether to reschedule on return from
interrupt.
Add arch_irqentry_exit_need_resched() as the default NOOP
implementation and hook it up into the need_resched() condition in
raw_irqentry_exit_cond_resched().
This allows ARM64 to implement the architecture specific version for
switchting over to the generic entry code.
That explains things completely independently. Hmm?
Thanks,
tglx
