Am 2021-05-10 um 12:36 p.m. schrieb Andrey Grodzovsky: > It's needed to drop iommu backed pages on device unplug > before device's IOMMU group is released. I don't see any calls to ttm_tt_unpopulate in the rest of the series now. Is that an accident, or can this patch be dropped? Regards, Felix > > Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx> > --- > 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 539e0232cb3b..dfbe1ea8763f 100644 > --- a/drivers/gpu/drm/ttm/ttm_tt.c > +++ b/drivers/gpu/drm/ttm/ttm_tt.c > @@ -433,3 +433,4 @@ 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);
