From: Joerg Roedel <jroedel@suse.de>
To: Nikolai Kostrigin <nickel@altlinux.org>
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND 1/1] PCI: Add ATS-disable quirk for AMD Radeon R7 GPUs
Date: Thu, 11 Apr 2019 14:38:37 +0200 [thread overview]
Message-ID: <20190411123837.GF3349@suse.de> (raw)
In-Reply-To: <20190408103725.30426-2-nickel@altlinux.org>
On Mon, Apr 08, 2019 at 01:37:25PM +0300, Nikolai Kostrigin wrote:
> ATS is broken on this hardware (at least for Stoney Ridge
> based laptop) and causes IOMMU stalls and
> system failure. Disable ATS on these devices to make them
> usable again with IOMMU enabled
> Thanks to Joerg Roedel <jroedel@suse.de> for help.
>
> https://bugzilla.kernel.org/show_bug.cgi?id=194521
>
> Signed-off-by: Nikolai Kostrigin <nickel@altlinux.org>
Acked-by: Joerg Roedel <jroedel@suse.de>
I helped Nikolai with tracking this issue down to ATS handling and
suggested adding the quirk.
next prev parent reply other threads:[~2019-04-11 12:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-08 10:37 [PATCH RESEND 0/1] PCI: Add ATS-disable quirk for AMD Radeon R7 GPUs Nikolai Kostrigin
2019-04-08 10:37 ` [PATCH RESEND 1/1] " Nikolai Kostrigin
2019-04-09 21:59 ` Bjorn Helgaas
[not found] ` <8b4659c8-3f49-de62-a616-a35a1d0c68b9@basealt.ru>
2019-04-10 8:03 ` Nikolai Kostrigin
2019-04-10 21:26 ` Bjorn Helgaas
2019-04-10 14:46 ` Deucher, Alexander
2019-04-10 15:59 ` Deucher, Alexander
2019-04-11 12:36 ` jroedel
2019-04-11 12:38 ` Joerg Roedel [this message]
2019-04-11 13:59 ` Bjorn Helgaas
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