GIT: [Intel-gfx] [PATCH 1/4] drm/i915: proper use of forcewake GIT: [Intel-gfx] [PATCH 2/4] drm/i915: refcounts for forcewake GIT: [Intel-gfx] [PATCH 3/4] drm/i915: userspace interface to the forcewake refcount GIT: [Intel-gfx] [PATCH 4/4] drm/i915: optional fewer warning patch