[Intel-gfx] [PATCH v2] drm/i915: do not read swizzle info if unavailable

[Chris Wilson]

Quoting Lucas De Marchi (2020-07-02 21:07:14)
> Since gen8 we don't use swizzle anymore. Don't dump registers related to
> it: registers may or may not be there.
> 
> v2: pull the rest of driver state reporting before the read out (Chris)
> 
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris