[PATCH] drm/ttm: wait for eviction in ttm_bo_force_list_clean

[Christian König]

From: Christian König <christian.koe...@amd.com>

Now that we can pipeline evictions we need to wait for
them to finish when we cleanup a memory domain.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 5d93169..e340d0d6 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1287,6 +1287,7 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device 
*bdev,
 {
        struct ttm_mem_type_manager *man = &bdev->man[mem_type];
        struct ttm_bo_global *glob = bdev->glob;
+       struct fence *fence;
        int ret;

        /*
@@ -1307,6 +1308,23 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device 
*bdev,
                spin_lock(&glob->lru_lock);
        }
        spin_unlock(&glob->lru_lock);
+
+       spin_lock(&man->move_lock);
+       fence = fence_get(man->move);
+       spin_unlock(&man->move_lock);
+
+       if (fence) {
+               ret = fence_wait(fence, false);
+               fence_put(fence);
+               if (ret) {
+                       if (allow_errors) {
+                               return ret;
+                       } else {
+                               pr_err("Cleanup eviction failed\n");
+                       }
+               }
+       }
+
        return 0;
 }

-- 
2.5.0