[PATCH v3 05/12] drm/ttm: Expose ttm_tt_unpopulate for driver use

[Andrey Grodzovsky]

It's needed to drop iommu backed pages on device unplug
before device's IOMMU group is released.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
---
 drivers/gpu/drm/ttm/ttm_tt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 1ccf1ef..29248a5 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -495,3 +495,4 @@ void ttm_tt_unpopulate(struct ttm_tt *ttm)
 	else
 		ttm_pool_unpopulate(ttm);
 }
+EXPORT_SYMBOL(ttm_tt_unpopulate);
-- 
2.7.4