Re: [6.18.y] Missing TLB fix for 6.18.y

[Greg KH <gregkh@linuxfoundation.org>]

On Tue, May 12, 2026 at 08:53:47PM +0000, Deucher, Alexander wrote:
> Public
> 
> > -----Original Message-----
> > From: Greg KH <gregkh@linuxfoundation.org>
> > Sent: Tuesday, May 12, 2026 1:22 PM
> > To: Deucher, Alexander <Alexander.Deucher@amd.com>
> > Cc: Limonciello, Mario <Mario.Limonciello@amd.com>;
> > stable@vger.kernel.org; mjanes@netflix.com
> > Subject: Re: [6.18.y] Missing TLB fix for 6.18.y
> >
> > On Mon, May 04, 2026 at 07:52:21PM +0000, Deucher, Alexander wrote:
> > > Public
> > >
> > > > -----Original Message-----
> > > > From: Limonciello, Mario <Mario.Limonciello@amd.com>
> > > > Sent: Monday, May 4, 2026 3:43 PM
> > > > To: stable@vger.kernel.org
> > > > Cc: mjanes@netflix.com; Deucher, Alexander
> > > > <Alexander.Deucher@amd.com>
> > > > Subject: [6.18.y] Missing TLB fix for 6.18.y
> > > >
> > > > Hi,
> > > >
> > > > Mark Janes noticed that commit e9f58ff991dd4 ("drm/amdgpu: rework
> > > > how we handle TLB fences") was missing from 6.18.y.
> > > >
> > > > This went into 7.0-rc5 and was backported to 6.19.y but not 6.18.y.
> > > >
> > > > This is because this was one of those cases that the "Fixed" commit
> > > > was in both 6.18 and 6.19.y as different hashes:
> > > >
> > > > b4a7f4e7ad2b120a94f3111f92a11520052c762d
> > > > f3854e04b708d73276c4488231a8bd66d30b4671
> > > >
> > > > So can you please backport e9f58ff991dd4 to 6.18.y?
> > >
> > > There are missing dependencies.  Please cherry pick all of the following:
> > >
> > > f4db9913e4d3 ("drm/amdgpu: validate the flush_gpu_tlb_pasid()")
> > > e3a6eff92bbd ("drm/amdgpu: Fix validating flush_gpu_tlb_pasid()")
> > > 9163fe4d790f ("Revert "drm/amdgpu: don't attach the tlb fence for
> > > SI"") 69c5fbd2b93b ("drm/amdgpu: rework how we handle TLB fences")
> >
> > In what order please?  Can someone provide a list of the full set?
> 
> 
> That is the full set.  Please apply the following in descending order:
> commit f4db9913e4d3 ("drm/amdgpu: validate the flush_gpu_tlb_pasid()")
> commit e3a6eff92bbd ("drm/amdgpu: Fix validating flush_gpu_tlb_pasid()")
> commit 9163fe4d790f ("Revert "drm/amdgpu: don't attach the tlb fence for SI"")
> commit 69c5fbd2b93b ("drm/amdgpu: rework how we handle TLB fences")

All now queued up, thanks!

greg k-h