Re: [REGRESSION] applespi from 6.12 onwards

[kobarity <kobarity@gmail.com>]

Baolu Lu wrote:
> On 5/12/25 20:16, kobarity wrote:
> > Baolu Lu wrote:
> >> On 5/11/25 21:31, kobarity wrote:
> >>> 
> >>> Hi
> >>> 
> >>> I'm also experiencing this problem on my MacBookPro14,3.
> >>> 
> >>> Aditya Garg wrote:
> >>>> 
> >>>> Hi Jörg
> >>>> 
> >>>> Can you test the kernel here to see if this fixes your issue:
> >>>> 
> >>>> https://github.com/t2linux/T2-Debian-and-Ubuntu-Kernel/actions/runs/14944200356
> >>>> 
> >>>> Alternatively you can try compiling your own kernel with this patch:
> >>>> 
> >>>> https://lore.kernel.org/all/0-v1-c26553717e90+65f-iommu_vtd_ss_wo_jgg@nvidia.com/
> >>> 
> >>> As far as I have tried, this patch did not solve the problem.
> >>> 
> >>> By bisecting, I found that this problem was introduced by commit
> >>> 2031c469f816 ("iommu/vt-d: Add support for static identity domain").
> >>> In fact, since this commit, it will panic at startup.  This panic was
> >>> fixed by commit 6e02a277f1db ("iommu/vt-d: Fix incorrect
> >>> pci_for_each_dma_alias() for non-PCI devices").  So I applied commit
> >>> 6e02a277f1db on commit 2031c469f816 and confirmed that the keyboard
> >>> and touchpad is not working.
> >> 
> >> Have you tried to apply commit 64f792981e35 ("iommu/vt-d: Remove device
> >> comparison in context_setup_pass_through_cb")?
> > 
> > Yes, I tried it on yesterday's master branch, including commit
> > 64f792981e35.
> > 
> > - Keyboard/Touchpad NOT working:
> >    - No patches
> >    - With patch in https://lore.kernel.org/all/0-v1-c26553717e90+65f-iommu_vtd_ss_wo_jgg@nvidia.com/
> > - Keyboard/Touchpad working:
> >    - With my workaround patch
> 
> Okay, thanks! Can you please try below change? I also attached a diff
> file in the attachment for your convenience.

Thanks!  The keyboard and touchpad now work with this patch.  I tested
it with the same master branch as before (commit 3ce9925823c7).