[Intel-gfx] [PATCH] drm/i915: re-run init_clock_gating after gpu reset

[Chris Wilson]

On Tue, 10 Apr 2012 14:39:49 +0200, Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> Over time we've added more and more workarounds in there for render
> core issues, so these register settings will revert back to their
> reset state. To avoid making a bad situation worse, re-run the clock
> gating code after reset so that we don't crash right away with a known
> hw issue.
> 
> Signed-Off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

This shouldn't do any harm whilst we do a full modeset afterwards.
However, we also need to reset rc6 and contexts.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre