Quoting Tvrtko Ursulin (2020-11-03 11:14:32)
> On 03/11/2020 02:53, Lu Baolu wrote:
> > On 11/2/20 7:52 PM, Tvrtko Ursulin wrote:
> >>
> >> On 02/11/2020 02:00, Lu Baolu wrote:
> >>> Hi Tvrtko,
> >>> On 10/12/20 4:44 PM, Tvrtko Ursulin wrote:
> >>>>
> >>>> On 29/09/2020 01:11, Lu Baolu wrote:


> >>>> FYI we have merged the required i915 patches to out tree last week 
> >>>> or so. I *think* this means they will go into 5.11. So the i915 
> >>>> specific workaround patch will not be needed in Intel IOMMU.
> >>>
> >>> Do you mind telling me what's the status of this fix patch? I tried this
> >>> series on v5.10-rc1 with the graphic quirk patch dropped. I am still
> >>> seeing dma faults from graphic device.
> >>
> >> Hmm back then I thought i915 fixes for this would land in 5.11 so I 
> >> will stick with that. :) (See my quoted text a paragraph above yours.)
> > 
> > What size are those fixes? I am considering pushing this series for
> > v5.11. Is it possible to get some acks for those patches and let them
> > go to Linus through iommu tree?
> For 5.10 you mean? They feel a bit too large for comfort to go via a 
> non-i915/drm tree. These are the two patches required:
> https://cgit.freedesktop.org/drm-intel/commit/?h=drm-intel-gt-next&id=8a473dbadccfc6206150de3db3223c40785da348
> https://cgit.freedesktop.org/drm-intel/commit/?h=drm-intel-gt-next&id=934941ed5a3070a7833c688c9b1d71484fc01a68
> I'll copy Joonas as our maintainer - how does the idea of taking the 
> above two patches through the iommu tree sound to you?

Hi Lu,

The patches have already been merged into our tree and are heading
towards 5.11, so I don't think we should merge them elsewhere. DRM
subsystem had the feature freeze for 5.10 at the time of 5.9-rc5
and only drm-intel-fixes pull requests are sent after that.

The patches seem to target to eliminate need for a previously used
workaround. To me it seems more appropriate for the patches to follow
the regular process as new feature for 5.11 to make sure the changes
get validated as part of linux-next.

Would that work for you? We intend to send the feature pull requests
to DRM for 5.11 in the upcoming weeks.

Regards, Joonas
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