[PATCH v4 18/29] arm64: add POE signal support

[Mark Brown]

On Mon, Jul 29, 2024 at 03:27:11PM +0100, Dave Martin wrote:
> On Fri, Jul 26, 2024 at 06:39:27PM +0100, Mark Brown wrote:

> > Yes, though that would mean if we had to generate any register in there
> > we'd always have to generate at least as many entries as whatever number
> > it got assigned which depending on how much optionality ends up getting
> > used might be unfortunate.

> Ack, though it's only 150 bytes or so at most, so just zeroing it all
> (or as much as we know about) doesn't feel like a big cost.

> It depends how determined we are to squeeze the most out of the
> remaining space.

Indeed, I was more thinking about how it might scale as the number of
extensions grows rather than the current costs.
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