[PATCH v4 03/14] drm/ttm: Expose ttm_tt_unpopulate for driver use

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@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);