[PATCH v2 7/7] drm/xe/bo: Allow eviction of unbound local bos

["Thomas Hellström" <thomas.hellstrom@linux.intel.com>]

Local bos that don't have any gpu_vmas set up are allowed
to be evicted. Support that.

Fixes: 24f947d58fe5 ("drm/xe: Use DRM GPUVM helpers for external- and evicted objects")
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
 drivers/gpu/drm/xe/xe_bo.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index db4cd1da8ef3..87e6aff52ca6 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -1029,10 +1029,14 @@ static bool xe_bo_eviction_valuable(struct ttm_buffer_object *ttm_bo,
 		if (vm && !drm_gpuvm_is_extobj(&vm->gpuvm, &ttm_bo->base) &&
 		    vm->is_validating) {
 			xe_vm_assert_held(vm);
+			/* Not bound to the vm? */
+			if (list_empty(&ttm_bo->base.gpuva.list))
+				goto allow;
 			return false;
 		}
 	}
 
+allow:
 	return ttm_bo_eviction_valuable(ttm_bo, place);
 }
 
-- 
2.44.0