[PATCH 2/3] drm/amdgpu: always signal all fences

[Christian König]

From: Christian König <christian.koenig at amd.com>

A little fallout from "drm/amdgpu: sanitize fence numbers", we
sometimes need to signal all fences in the ring.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index e320b5b..0b109ae 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -204,10 +204,13 @@ void amdgpu_fence_process(struct amdgpu_ring *ring)
 	if (seq != ring->fence_drv.sync_seq)
 		amdgpu_fence_schedule_fallback(ring);
 
+	if (unlikely(seq == last_seq))
+		return;
+
 	last_seq &= drv->num_fences_mask;
 	seq &= drv->num_fences_mask;
 
-	while (last_seq != seq) {
+	do {
 		struct fence *fence, **ptr;
 
 		++last_seq;
@@ -228,7 +231,7 @@ void amdgpu_fence_process(struct amdgpu_ring *ring)
 			BUG();
 
 		fence_put(fence);
-	}
+	} while (last_seq != seq);
 }
 
 /**
-- 
2.5.0