[PATCH 4.8 113/138] drm/i915/gen9: fix DDB partitioning for multi-screen cases

4.8-stable review patch. If anyone has any objections, please let me know. -- From: Paulo Zanoni commit 01c72d6c17dc524f04d4dbe361d214e423b35457 upstream. With the previous code we were only recomputing the DDB partitioning for the CRTCs included in

[PATCH 4.8 113/138] drm/i915/gen9: fix DDB partitioning for multi-screen cases

4.8-stable review patch. If anyone has any objections, please let me know. -- From: Paulo Zanoni commit 01c72d6c17dc524f04d4dbe361d214e423b35457 upstream. With the previous code we were only recomputing the DDB partitioning for the CRTCs included in the atomic commit, so any