Re: [PATCH AUTOSEL 6.11 72/76] drm/amdgpu: nuke the VM PD/PT shadow handling

[Sasha Levin]

On Tue, Oct 08, 2024 at 08:46:01AM +0200, Christian König wrote:
> Hi Sasha,
>
> Am 04.10.24 um 20:17 schrieb Sasha Levin:
> > From: Christian König <christian.koenig@xxxxxxx>
> >
> > [ Upstream commit 7181faaa4703705939580abffaf9cb5d6b50dbb7 ]
> >
> > This was only used as workaround for recovering the page tables after
> > VRAM was lost and is no longer necessary after the function
> > amdgpu_vm_bo_reset_state_machine() started to do the same.
> >
> > Compute never used shadows either, so the only proplematic case left is
> > SVM and that is most likely not recoverable in any way when VRAM is
> > lost.
>
> why is that backported to older kernels? It's basically just removing 
> an old and now unused feature.
>
> Lijo pointed out a related bug fixed by removing the feature, but that 
> only happens extremely rarely and in my view doesn't really justify a 
> backport.

I'll drop it then, thanks!

--
Thanks,
Sasha