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 48c407cff112..f2ce1b372096 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -431,3 +431,4 @@ void ttm_tt_mgr_init(unsigned long num_pages, unsigned long
num_dma32_pages)
if (!ttm_dma32_pages_limit)
ttm_dma32_pages_limit = num_dma32_pages;
}
+EXPORT_SYMBOL(ttm_tt_unpopulate);
--
2.25.1
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