diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 33c97d510999..aa94f8e284dd 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -131,7 +131,7 @@ nv50_dmac_kick(struct nvif_push *push)
 {
 	struct nv50_dmac *dmac = container_of(push, typeof(*dmac), _push);
 
-	dmac->cur = push->cur - (u32 *)dmac->_push.mem.object.map.ptr;
+	dmac->cur = push->cur - (u32 __iomem *)dmac->_push.mem.object.map.ptr;
 	if (dmac->put != dmac->cur) {
 		/* Push buffer fetches are not coherent with BAR1, we need to ensure
 		 * writes have been flushed right through to VRAM before writing PUT.
@@ -194,7 +194,7 @@ nv50_dmac_wait(struct nvif_push *push, u32 size)
 	if (WARN_ON(size > dmac->max))
 		return -EINVAL;
 
-	dmac->cur = push->cur - (u32 *)dmac->_push.mem.object.map.ptr;
+	dmac->cur = push->cur - (u32 __iomem *)dmac->_push.mem.object.map.ptr;
 	if (dmac->cur + size >= dmac->max) {
 		int ret = nv50_dmac_wind(dmac);
 		if (ret)