[Intel-gfx] [PATCH] drm/i915/gen3: Improve reset reliability

[Chris Wilson]

On Mon, May 22, 2017 at 12:02:44PM +0300, Mika Kuoppala wrote:
> We improved the reset reliablity on gen4 with
> stopping all engines before commencing reset, in
> commit 2c80353f3cd0 ("drm/i915/g4x: Improve gpu reset reliability")
> 
> Evidence indicates that this same trick works with gen3.

Note this is g33 which is a close cousin to g4x, not ye olde gen3
itself.

> Testcase: igt/gem_busy/*-hang #blb-e6850
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Tomi Sarvela <tomi.p.sarvela at intel.com>
> Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre