1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 31786b200afc..a3357ff7540d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -311,7 +311,13 @@ static dma_addr_t __vmw_piter_dma_addr(struct vmw_piter *viter)
 
 static dma_addr_t __vmw_piter_sg_addr(struct vmw_piter *viter)
 {
-        return sg_page_iter_dma_address(&viter->iter);
+        /*
+         * FIXME: This driver wrongly mixes DMA and CPU SG list iteration and
+         * needs revision. See
+         * https://lore.kernel.org/lkml/20190104223531.GA1705@ziepe.ca/
+         */
+        return sg_page_iter_dma_address(
+                container_of(&viter->iter, struct sg_dma_page_iter, base));
 }