Re: [PATCH v4 0/7] Convert the intel iommu driver to the dma-iommu api

[Tvrtko Ursulin]

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:
> > > Hi Tvrtko,
> > >
> > > On 9/28/20 5:44 PM, Tvrtko Ursulin wrote:
> > > > On 27/09/2020 07:34, Lu Baolu wrote:
> > > > > Hi,
> > > > >
> > > > > The previous post of this series could be found here.
> > > > >
> > > > > https://lore.kernel.org/linux-iommu/20200912032200.11489-1-baolu.lu@xxxxxxxxxxxxxxx/ 
> > > > >
> > > > >
> > > > > This version introduce a new patch [4/7] to fix an issue reported 
> > > > > here.
> > > > >
> > > > > https://lore.kernel.org/linux-iommu/51a1baec-48d1-c0ac-181b-1fba92aa428d@xxxxxxxxxxxxxxx/ 
> > > > >
> > > > >
> > > > > There aren't any other changes.
> > > > >
> > > > > Please help to test and review.
> > > > >
> > > > > Best regards,
> > > > > baolu
> > > > >
> > > > > Lu Baolu (3):
> > > > >    iommu: Add quirk for Intel graphic devices in map_sg
> > > >
> > > > Since I do have patches to fix i915 to handle this, do we want to 
> > > > co-ordinate the two and avoid having to add this quirk and then 
> > > > later remove it? Or you want to go the staged approach?
> > >
> > > I have no preference. It depends on which patch goes first. Let the
> > > maintainers help here.
> >
> > 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.)

Regards,

Tvrtko