As the gen6_ppgtt may refer back to the GGTT for their page-directory
slots, make sure those __i915_vm_release are completed prior to shutting
down the GGTT.
Fixes: b32fa8111563 ("drm/i915/gtt: Defer address space cleanup to an RCU worker")
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 4dd1fa956143..35d4e99e7abd 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2720,6 +2720,7 @@ static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
struct i915_vma *vma, *vn;
ggtt->vm.closed = true;
+ flush_workqueue(i915->wq); /* flush the __i915_vm_release */
mutex_lock(&i915->drm.struct_mutex);
--
2.22.0
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