[Intel-gfx] [PATCH] drm/i915/ringbuffer: 2-step restart

[Chris Wilson]

Quoting Joonas Lahtinen (2018-11-26 14:19:30)
> Quoting Chris Wilson (2018-11-26 14:28:21)
> > We may be simply restarting too fast for the culmudgeonly gen3/gen4 as
> > we still see missing interrupts following a reset. So let's try
> > restarting a little slower, first wake up the ring empty and then tell
> > it about the work it has to perform.
> > 
> > References: https://bugs.freedesktop.org/show_bug.cgi?id=108735
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> 
> Won't affect later Gens using ELSP, so:
> 
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Now sit back and wait a week to see if had any impact on the bug at all.
-Chris