It's needed to drop iommu backed pages on device unplug
before device's IOMMU group is released.
Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@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 7f75a13..f9e0b0d 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -341,3 +341,4 @@ void ttm_tt_unpopulate(struct ttm_bo_device *bdev,
ttm_pool_free(&bdev->pool, ttm);
ttm->page_flags &= ~TTM_PAGE_FLAG_PRIV_POPULATED;
}
+EXPORT_SYMBOL(ttm_tt_unpopulate);
--
2.7.4
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