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Message-ID: <20190411123837.GF3349@suse.de> Date: Thu, 11 Apr 2019 14:38:37 +0200 From: Joerg Roedel <jroedel@...e.de> To: Nikolai Kostrigin <nickel@...linux.org> Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH RESEND 1/1] PCI: Add ATS-disable quirk for AMD Radeon R7 GPUs 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@...e.de> for help. > > https://bugzilla.kernel.org/show_bug.cgi?id=194521 > > Signed-off-by: Nikolai Kostrigin <nickel@...linux.org> Acked-by: Joerg Roedel <jroedel@...e.de> I helped Nikolai with tracking this issue down to ATS handling and suggested adding the quirk.
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