Re: [Intel-gfx] [PATCH v3] drm/i915: Fallback to using unmappable memory for scanout

Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang...@intel.com) Task id: 6048 -Summary- Platform Delta drm-intel-nightly Series Applied PNV -2 269/269

[Intel-gfx] [PATCH v3] drm/i915: Fallback to using unmappable memory for scanout

The existing ABI says that scanouts are pinned into the mappable region so that legacy clients (e.g. old Xorg or plymouthd) can write directly into the scanout through a GTT mapping. However if the surface does not fit into the mappable region, we are better off just trying to fit it anywhere and h