[Intel-xe] [PATCH 18/22] drm/xe: Propagate VM unbind error to invalidation fence

[Rodrigo Vivi]

From: Matthew Brost <matthew.brost at intel.com>

If a VM unbind hits an error, do not issue a TLB invalidation and
propagate the error the invalidation fence.

Signed-off-by: Matthew Brost <matthew.brost at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/xe/xe_pt.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index 9da5ee4b31f8..0c2cc9d772fa 100644
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -1500,7 +1500,13 @@ static void invalidation_fence_cb(struct dma_fence *fence,
 		container_of(cb, struct invalidation_fence, cb);
 
 	trace_xe_gt_tlb_invalidation_fence_cb(&ifence->base);
-	queue_work(system_wq, &ifence->work);
+	if (!ifence->fence->error) {
+		queue_work(system_wq, &ifence->work);
+	} else {
+		ifence->base.base.error = ifence->fence->error;
+		dma_fence_signal(&ifence->base.base);
+		dma_fence_put(&ifence->base.base);
+	}
 	dma_fence_put(ifence->fence);
 }
 
-- 
2.39.1