Messages in this thread | | | From | Catalin Marinas <> | Subject | Re: [PATCHv3 0/6] arm64: Support FIQ controller registration | Date | Wed, 24 Mar 2021 20:38:05 +0000 |
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On Mon, 15 Mar 2021 11:56:23 +0000, Mark Rutland wrote: > Hector's M1 support series [1] shows that some platforms have critical > interrupts wired to FIQ, and to support these platforms we need to support > handling FIQ exceptions. Other contemporary platforms don't use FIQ (since e.g. > this is usually routed to EL3), and as we never expect to take an FIQ, we have > the FIQ vector cause a panic. > > Since the use of FIQ is a platform integration detail (which can differ across > bare-metal and virtualized environments), we need be able to explicitly opt-in > to handling FIQs while retaining the existing behaviour otherwise. This series > adds a new set_handle_fiq() hook so that the FIQ controller can do so, and > where no controller is registered the default handler will panic(). For > consistency the set_handle_irq() code is made to do the same. > > [...]
Applied to arm64 (for-next/fiq), thanks!
[1/6] genirq: Allow architectures to override set_handle_irq() fallback https://git.kernel.org/arm64/c/b0b8b689d78c [2/6] arm64: don't use GENERIC_IRQ_MULTI_HANDLER https://git.kernel.org/arm64/c/338a743640e9 [3/6] arm64: irq: rework root IRQ handler registration https://git.kernel.org/arm64/c/8ff443cebffa [4/6] arm64: entry: factor irq triage logic into macros https://git.kernel.org/arm64/c/9eb563cdabe1 [5/6] arm64: Always keep DAIF.[IF] in sync https://git.kernel.org/arm64/c/f0098155d337 [6/6] arm64: irq: allow FIQs to be handled https://git.kernel.org/arm64/c/3889ba70102e
-- Catalin
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