1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nv50_fb.c b/drivers/gpu/drm/nouveau/nv50_fb.c
new file mode 100644
index 000000000000..a95e6941ba88
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv50_fb.c
@@ -0,0 +1,32 @@
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+int
+nv50_fb_init(struct drm_device *dev)
+{
+        /* This is needed to get meaningful information from 100c90
+         * on traps. No idea what these values mean exactly. */
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+        switch (dev_priv->chipset) {
+        case 0x50:
+                nv_wr32(dev, 0x100c90, 0x0707ff);
+                break;
+        case 0xa5:
+        case 0xa8:
+                nv_wr32(dev, 0x100c90, 0x0d0fff);
+                break;
+        default:
+                nv_wr32(dev, 0x100c90, 0x1d07ff);
+                break;
+        }
+
+        return 0;
+}
+
+void
+nv50_fb_takedown(struct drm_device *dev)
+{
+}