[Intel-xe] [PATCH v4 0/7] Try to handle TLB invalidations from CT fast-path

[Souza, Jose]

On Wed, 2023-07-05 at 17:06 +0100, Matthew Auld wrote:
> In various test cases and workloads that put the system under a heavy load, we
> can sometimes see errors with missed TLB invalidations. If we handle the TLB
> completions directly from IRQ we can see a big improvement.
> 
> v4:
>   - Various tweaks. Big thing is to make sure we grab the fast_lock for the g2h
>     reservation when doing the CT send, which closes one big race with the CT
>     fast-path.
> 

Looks like the __g2h_release_space() warning are now fixed for good now.
But got one 'TLB invalidation fence timeout' while starting Xorg once on a TGL, not able to reproduce again... https://pastebin.com/UFqQ4G7Y