drm/nv50: cast IGP memory location to u64 before shifting

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

diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 775a701..c1fd42b 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -540,7 +540,8 @@ nouveau_mem_detect(struct drm_device *dev)
                dev_priv->vram_size  = nv_rd32(dev, NV04_FIFO_DATA);
                dev_priv->vram_size &= NV10_FIFO_DATA_RAM_AMOUNT_MB_MASK;
                if (dev_priv->chipset == 0xaa || dev_priv->chipset == 0xac)
-                       dev_priv->vram_sys_base = nv_rd32(dev, 0x100e10) << 12;
+                       dev_priv->vram_sys_base = nv_rd32(dev, 0x100e10);
+                       dev_priv->vram_sys_base <<= 12;
        }
 
        NV_INFO(dev, "Detected %dMiB VRAM\n", (int)(dev_priv->vram_size >> 20));