drm/xe: Skip adding PRL entry to NULL VMA

NULL VMAs have no corresponding PTE, so skip adding a PRL entry to avoid
an unnecessary PRL abort during unbind.

Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260305171546.67691-8-brian3.nguyen@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
This commit is contained in:
Brian Nguyen 2026-03-05 17:15:50 +00:00 • committed by Matt Roper
commit 1b12096b4b