From: Matthew Brost <matthew.br...@intel.com>
Avoids unnecessary waits when the TLB invalidation fence has not been
armed, simplifying caller logic in cases where the fence status is
uncertain.
Signed-off-by: Matthew Brost <matthew.br...@intel.com>
---
drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h
b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h
index f7f0f2eaf4b5..c6d4398d3429 100644
--- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h
+++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h
@@ -34,7 +34,8 @@ void xe_gt_tlb_invalidation_fence_signal(struct
xe_gt_tlb_invalidation_fence *fe
static inline void
xe_gt_tlb_invalidation_fence_wait(struct xe_gt_tlb_invalidation_fence *fence)
{
- dma_fence_wait(&fence->base, false);
+ if (fence->seqno)
+ dma_fence_wait(&fence->base, false);
}
#endif /* _XE_GT_TLB_INVALIDATION_ */
--
2.50.1
