Commit 9bb66c179f50 ("drm/i915: Reserve some kernel space per vm") reduces the available VM space of one page in order to apply Wa_16018031267 and Wa_16018063123.
This page was reserved indiscrimitely in all platforms even when not needed. Limit it to DG2 onwards. Fixes: 9bb66c179f50 ("drm/i915: Reserve some kernel space per vm") Signed-off-by: Andi Shyti <andi.sh...@linux.intel.com> Cc: Andrzej Hajda <andrzej.ha...@intel.com> Cc: Chris Wilson <chris.p.wil...@linux.intel.com> Cc: Jonathan Cavitt <jonathan.cav...@intel.com> Cc: Nirmoy Das <nirmoy....@intel.com> Acked-by: Michal Mrozek <michal.mro...@intel.com>