LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Chris Wilson <chris@chris-wilson.co.uk>
To: David Woodhouse <dwmw2@infradead.org>,
	Joerg Roedel <joro@8bytes.org>,
	Lu Baolu <baolu.lu@linux.intel.com>
Cc: ashok.raj@intel.com, iommu@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>,
	"Balestrieri, Francesco" <francesco.balestrieri@intel.com>
Subject: Re: [PATCH 3/4] iommu/vt-d: Clean up pasid quirk for pre-production devices
Date: Sat, 07 Jul 2018 08:01:22 +0100	[thread overview]
Message-ID: <153094688126.17577.10340360451966114779@cwilso3-mobl.ger.corp.intel.com> (raw)
In-Reply-To: <1525410499-18632-4-git-send-email-baolu.lu@linux.intel.com>

Quoting Lu Baolu (2018-05-04 06:08:18)
> The pasid28 quirk is needed only for some pre-production devices.
> Remove it to make the code concise.

Every skylake mixing iommu and i915 is now inoperable on boot. Reads
by the GPU from iommu map pages return zero, writes disappear into the
void, no errors flagged.

Please revert until the matter is resolved.
-Chris

  reply	other threads:[~2018-07-07  7:01 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-04  5:08 [PATCH 0/4] iommu/vt-d: Several cleanup patches Lu Baolu
2018-05-04  5:08 ` [PATCH 1/4] iommu: Clean up the comments for iommu_group_alloc Lu Baolu
2018-05-04  5:08 ` [PATCH 2/4] iommu/vt-d: Clean up unused variable in find_or_alloc_domain Lu Baolu
2018-05-04  5:08 ` [PATCH 3/4] iommu/vt-d: Clean up pasid quirk for pre-production devices Lu Baolu
2018-07-07  7:01   ` Chris Wilson [this message]
2018-07-07  7:21     ` Lu Baolu
2018-05-04  5:08 ` [PATCH 4/4] iommu/vt-d: Remove unnecessary parentheses Lu Baolu
2018-05-15 14:35 ` [PATCH 0/4] iommu/vt-d: Several cleanup patches Joerg Roedel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=153094688126.17577.10340360451966114779@cwilso3-mobl.ger.corp.intel.com \
    --to=chris@chris-wilson.co.uk \
    --cc=ashok.raj@intel.com \
    --cc=baolu.lu@linux.intel.com \
    --cc=dwmw2@infradead.org \
    --cc=francesco.balestrieri@intel.com \
    --cc=iommu@lists.linux-foundation.org \
    --cc=joro@8bytes.org \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: [PATCH 3/4] iommu/vt-d: Clean up pasid quirk for pre-production devices' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).