Re: [PATCH v2 1/2] arm64: Move Mediatek GIC quirk handling from irqchip to core
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2023-11-08 15:46:21
Also in:
linux-mediatek, lkml
On Tue, 07 Nov 2023 07:26:56 -0800, Douglas Anderson wrote:
In commit 44bd78dd2b88 ("irqchip/gic-v3: Disable pseudo NMIs on
Mediatek devices w/ firmware issues") we added a method for detecting
Mediatek devices with broken firmware and disabled pseudo-NMI. While
that worked, it didn't address the problem at a deep enough level.
The fundamental issue with this broken firmware is that it's not
saving and restoring several important GICR registers. The current
list is believed to be:
* GICR_NUM_IPRIORITYR
* GICR_CTLR
* GICR_ISPENDR0
* GICR_ISACTIVER0
* GICR_NSACR
[...]
Applied to arm64 (for-next/core), thanks!
[1/2] arm64: Move Mediatek GIC quirk handling from irqchip to core
https://git.kernel.org/arm64/c/1d816ba168ea
[2/2] Revert "arm64: smp: avoid NMI IPIs with broken MediaTek FW"
https://git.kernel.org/arm64/c/4bb49009e071
Also "s/Mediatek/MediaTek/".
--
Catalin
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