[Intel-gfx] [PATCH v7 04/20] drm/i915: Skip reset request if there is one already

[Chris Wilson]

On Thu, Apr 27, 2017 at 04:12:44PM -0700, Michel Thierry wrote:
> From: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> 
> To perform engine reset we first disable engine to capture its state. This
> is done by issuing a reset request. Because we are reusing existing
> infrastructure, again when we actually reset an engine, reset function
> checks engine mask and issues reset request again which is unnecessary. To
> avoid this we check if the engine is already prepared, if so we just exit
> from that point.

Do we still need this? I am a bit dubious because it implies we have no
idea what we are doing, recursively calling resets.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre