drm/nouveau/ltc: fix tag base address getting truncated if above 4GiB

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c b/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c
index 9e00a1ede120..b54b582e72c4 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c
@@ -156,7 +156,7 @@ gf100_ltc_init_tag_ram(struct nouveau_fb *pfb, struct nvkm_ltc_priv *priv)
         if (ret) {
                 priv->num_tags = 0;
         } else {
-                u64 tag_base = (priv->tag_ram->offset << 12) + tag_margin;
+                u64 tag_base = ((u64)priv->tag_ram->offset << 12) + tag_margin;
 
                 tag_base += tag_align - 1;
                 ret = do_div(tag_base, tag_align);