Re: [PATCH v3] iommu/amd: Disable IOMMU on Stoney Ridge systems

[Joerg Roedel]

On Mon, Feb 10, 2020 at 03:51:15PM +0800, Kai-Heng Feng wrote:
> Serious screen flickering when Stoney Ridge outputs to a 4K monitor.
> 
> Use identity-mapping and PCI ATS doesn't help this issue.
> 
> According to Alex Deucher, IOMMU isn't enabled on Windows, so let's do
> the same here to avoid screen flickering on 4K monitor.
> 
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Bug: https://gitlab.freedesktop.org/drm/amd/issues/961
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>

Applied, thanks.