The new atomic modesetting/pageflip code for nv50+ for
Linux 4.10+ no longer uses pageflip irq's to signal
flip completion. Instead it polls for flip completion
from within a kthread/work queue.
This creates a race between the vblank irq handler
updating the vblank count and timestamp for the
vbla
On 20.10.2016 00:46, Ben Skeggs wrote:
[...]
> I'd like to see a mmiotrace of the NVIDIA binary driver on a system
> where this WAR breaks things. I applied it to all the GPUs that NVIDIA
> told me required it.
>
> Ben.
>
Still broken, more than four months,
tested with mainline 4.9-rc6.
Accor
