Re: [PATCH 11/18] arm64: Kconfig: Require FIQ support for ARCH_APPLE

From: Hector Martin 'marcan'
Date: Sun Feb 07 2021 - 04:24:25 EST


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@xxxxxxxxx)
Public Key: https://mrcn.st/pub