[PATCH v5 02/27] 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 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);