From: sashiko-bot@kernel.org
To: "Matt Thompson" <matt@boondocker.io>
Cc: linux-pci@vger.kernel.org
Subject: Re: [PATCH RFC v2 2/3] arm64: Allow synchronous abort fixups for guarded MMIO reads
Date: Sat, 14 Nov 2026 01:02:27 +0000 [thread overview]
Message-ID: <sashiko-outbox-213974@kernel.org> (raw)
In-Reply-To: <20261113-rfc-b4-v2-2-d6b14f95c1d6@boondocker.io>
> From: Matt Thompson <matt@boondocker.io>
>
> An RK3399 PCI configuration read can raise a synchronous external data
> abort if it does not get a usable response. Allow an explicitly annotated
> MMIO load to return an error in this case.
>
> Match only a current-EL synchronous external abort on a read instruction
> with the new exception table type. Keep existing handling for other
> faults, including asynchronous SError and translation table walk aborts.
>
> Signed-off-by: Matt Thompson <matt@boondocker.io>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261113-rfc-b4-v2-0-d6b14f95c1d6@boondocker.io?part=2
next prev parent reply other threads:[~2026-11-14 1:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-14 0:52 [PATCH RFC v2 0/3] PCI: rockchip-host: Handle unavailable downstream config space Matt Thompson via B4 Relay
2026-11-14 0:52 ` [PATCH RFC v2 1/3] PCI: rockchip-host: Skip downstream config access while link is down Matt Thompson via B4 Relay
2026-11-14 1:03 ` sashiko-bot
2026-11-14 0:52 ` [PATCH RFC v2 2/3] arm64: Allow synchronous abort fixups for guarded MMIO reads Matt Thompson via B4 Relay
2026-11-14 1:02 ` sashiko-bot [this message]
2026-11-14 0:52 ` [PATCH RFC v2 3/3] PCI: rockchip-host: Recover downstream configuration access Matt Thompson via B4 Relay
2026-11-14 1:01 ` sashiko-bot
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