From: Dave Airlie <airlied@xxxxxxxxxx>
This fixes a bug introduced in be1213a341a289afc51f89181c310e368fba0b66
drm/ttm: remove TTM_MEMTYPE_FLAG_FIXED v2
On vmwgfx this causes a Command buffer error WARN to trigger.
This is because the old code used to check if bo->ttm was true,
and the new code doesn't, fix it code to add back the check resolves
the issue.
Fixes: be1213a341a2 ("drm/ttm: remove TTM_MEMTYPE_FLAG_FIXED v2")
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/ttm/ttm_bo.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 70b3bee27850..e8aa2fe8e9d1 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -251,9 +251,11 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
/* Zero init the new TTM structure if the old location should
* have used one as well.
*/
- ret = ttm_tt_create(bo, old_man->use_tt);
- if (ret)
- goto out_err;
+ if (!bo->ttm) {
+ ret = ttm_tt_create(bo, old_man->use_tt);
+ if (ret)
+ goto out_err;
+ }
ret = ttm_tt_set_placement_caching(bo->ttm, mem->placement);
if (ret)
--
2.20.1
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