drm/xe: Bump LRU for external objects on exec and rebind

The VM's private BOs get their LRU position refreshed in bulk via
ttm_lru_bulk_move_tail() on vm->lru_bulk_move, both after a successful
non-LR exec and after the LR preempt-fence rebind worker runs. External
objects (BOs potentially shared across VMs) are never added to that
per-VM bulk move list, so their LRU position is never refreshed by
either path. This makes external objects in active use look more
evictable than they are.

Add xe_vm_bump_lru(), which, under a single lru_lock critical section,
performs the bulk move of the VM's private BOs and bumps each external
object locked by the drm_exec transaction. Use it from both the non-LR
exec path and the LR rebind worker, replacing the open-coded bulk move.

Fixes: d490ecf57790 ("drm/xe: Rework xe_exec and the VM rebind worker to use the drm_exec helper")
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: <stable@vger.kernel.org> # v6.8+
Assisted-by: LLM
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20261012132607.21387-1-thomas.hellstrom@linux.intel.com
(cherry picked from commit 324ba30cca180c2e1d02090743dd78ccb15b9e4a)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

0 files changed, 0 insertions, 0 deletions