Re: [PATCH 1/1] Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
From: Joerg Roedel
Date: Fri Jul 20 2018 - 07:56:59 EST
On Sun, Jul 08, 2018 at 02:23:21PM +0800, Lu Baolu wrote:
> This reverts commit ab96746aaa344fb720a198245a837e266fad3b62.
>
> The commit ab96746aaa34 ("iommu/vt-d: Clean up pasid quirk for
> pre-production devices") triggers ECS mode on some platforms
> which have broken ECS support. As the result, graphic device
> will be inoperable on boot.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107017
>
> Cc: Ashok Raj <ashok.raj@xxxxxxxxx>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> ---
> drivers/iommu/intel-iommu.c | 32 ++++++++++++++++++++++++++++++--
> include/linux/intel-iommu.h | 1 +
> 2 files changed, 31 insertions(+), 2 deletions(-)
Applied to iommu/fixes.