RFC: Add API to get and set interrupt priorities for interrupt vectors

[Gedare Bloom]

Two basic questions:

Does the priority field type need to be Architecture- or BSP-defined
or is uint32_t always going to be fine.

Does changing (increasing) the priority of a vector from within
interrupt context possibly cause a pending interrupt to post that was
previously at a lower priority than the currently masked priority
level? In that case, it would cause a preemption to occur. I'm
guessing this behavior could be architecture-specific.

I added those questions to the ticket also.
Gedare

On Wed, Mar 20, 2024 at 2:59 AM Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
>
> Hello,
>
> I added a ticket for a proposal for an API to get and set interrupt
> priorities for interrupt vectors:
>
> https://devel.rtems.org/ticket/5002
>
> I would like to implement this API at least for the BSPs using the
> ARM/AArch64 GIC.
>
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