From: Joerg Roedel <joro@8bytes.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
ashok.raj@intel.com, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
Date: Fri, 20 Jul 2018 13:56:53 +0200 [thread overview]
Message-ID: <20180720115652.tswu2sohy6snj4hl@8bytes.org> (raw)
In-Reply-To: <1531031001-5783-1-git-send-email-baolu.lu@linux.intel.com>
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@intel.com>
> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
> ---
> drivers/iommu/intel-iommu.c | 32 ++++++++++++++++++++++++++++++--
> include/linux/intel-iommu.h | 1 +
> 2 files changed, 31 insertions(+), 2 deletions(-)
Applied to iommu/fixes.
prev parent reply other threads:[~2018-07-20 11:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-08 6:23 [PATCH 1/1] Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices" Lu Baolu
2018-07-16 6:02 ` Lu Baolu
2018-07-16 7:53 ` Zhenyu Wang
2018-07-20 11:56 ` Joerg Roedel [this message]
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