[Intel-gfx] [PATCH 2/3 v3] drm/i915: catch gtfifo errors on forcewake_put

[Ben Widawsky]

On 02/07/2012 04:21 PM, Ben Widawsky wrote:
> This is similar to a patch I wrote several months ago. It's been updated
> for the new FORCEWAKE_MT, and it also no longer clears the debug
> register as it may be helpful to get that for the error state.  Also
> recommended by Chris Wilson, use WARN() instead of DRM_ERROR, so we can
> get a backtrace.

This comment is wrong. It once again clears the debug register. ;\