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SubjectRe: [PATCH 11/18] arm64: Kconfig: Require FIQ support for ARCH_APPLE
Date
On 07/02/2021 00.46, Marc Zyngier wrote:
>> config ARCH_APPLE
>> bool "Apple Silicon SoC family"
>> select GENERIC_IRQ_CHIP
>> + select ARM64_FIQ_SUPPORT
>
> Ah, this is what I was expecting in the previous patch. I guess the
> initial ARCH_APPLE patch could be moved down the line and add all the
> dependencies in one go.

I was trying to introduce the Kconfig before the code that depends on
it; is it kosher to have it in the other order, looking for CONFIG_
defines that don't exist yet?

Though in this case the only user earlier in the series is the Samsung
stuff, which doesn't care about FIQs, so I can just sort things as
FIQ->ARCH_APPLE->samsung->AIC...

I'm not sure about AIC vs. ARCH_APPLE though. Right now the pattern is
that AIC depends on ARCH_APPLE and also defaults to that. But then you
can build with ARCH_APPLE and AIC disabled if you so choose, which does
result in a broken system on these machines. AIC should build without
ARCH_APPLE (as long as we're on ARM64), so we could reverse that.

--
Hector Martin "marcan" (marcan@marcan.st)
Public Key: https://mrcn.st/pub

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