Re: [Intel-gfx] [PATCH v2 07/15] drm/i915/tdr: Restore engine state and start after reset

2016-06-17 Thread Chris Wilson
On Fri, Jun 17, 2016 at 08:09:07AM +0100, Arun Siluvery wrote: > We capture the state of an engine before resetting it, once the reset is > successful engine is restored with the same state and restarted. > > The state includes head register and active request. We also nudge the head > forward if

[Intel-gfx] [PATCH v2 07/15] drm/i915/tdr: Restore engine state and start after reset

2016-06-17 Thread Arun Siluvery
We capture the state of an engine before resetting it, once the reset is successful engine is restored with the same state and restarted. The state includes head register and active request. We also nudge the head forward if it hasn't advanced, otherwise when the engine is restarted HW executes th