[Intel-gfx] [PATCH] Revert "drm/i915: Make prepare_plane_fb fully interruptible."

[Maarten Lankhorst]

Op 17-11-15 om 18:44 schreef Daniel Vetter:
> On Mon, Nov 02, 2015 at 05:38:07PM +0200, Ville Syrjälä wrote:
>> On Mon, Nov 02, 2015 at 01:41:03PM +0100, Maarten Lankhorst wrote:
>>> Hey,
>>>
>>> Op 30-10-15 om 22:06 schreef ville.syrjala at linux.intel.com:
>>>> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>>>>
>>>> This reverts commit b26a6b35581c84124bd78b68cc02d171fbd572c9.
>>>>
>>>> commit b26a6b35581c ("drm/i915: Make prepare_plane_fb fully interruptible.")
>>>> breaks GPU reset on gen3/4 machines. Go back to to non-interruptible.
>>>>
>>> I've done some digging and by forcing an unconditional modeset during reset I was able to trigger it on my system.
>> Hmm, maybe we should add some kind of debug knob to do just that. That
>> way we could test most of the gen3/4 reset path with gen5+.
>>
>> I thought we already had that for load detection, but I may have
>> imagined it considering that load detection seems to have been 
>> broken now for a while.
> We still have it for load detect, including an igt. No one looks at igt
> results though :(
>
> Maarten, can you please take care of both of these before pushing more
> atomic work? And I guess that means that we should apply the revert first.
> So Acked-by: Daniel Vetter <daniel.vetter at ffwll.ch> on the revert.
>
> Cheers, Daniel
>
Reset is already fixed upstream so reverting wont help.

What igt is used for load detection then?