Enable additional driver debugging for GuC

configname: CONFIG_DRM_I915_DEBUG_GUC

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>drm/i915 Debugging
└─>Enable additional driver debugging for GuC
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Choose this option to turn on extra driver debugging that may affect
performance but will help resolve GuC related issues.

Recommended for driver developers only.

If in doubt, say "N".