drm/nouveau: memory type detection for the really old chipsets

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

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nv04_fb.c b/drivers/gpu/drm/nouveau/nv04_fb.c
index db16c47fd922..d5eedd67afe5 100644
--- a/drivers/gpu/drm/nouveau/nv04_fb.c
+++ b/drivers/gpu/drm/nouveau/nv04_fb.c
@@ -29,6 +29,11 @@ nv04_fb_vram_init(struct drm_device *dev)
                 }
         }
 
+        if ((boot0 & 0x00000038) <= 0x10)
+                dev_priv->vram_type = NV_MEM_TYPE_SGRAM;
+        else
+                dev_priv->vram_type = NV_MEM_TYPE_SDRAM;
+
         return 0;
 }