drm/nv40: Init some tiling-related PGRAPH state.

Fixes garbled 3D on an nv46 card.

Reported-by: Francesco Marella <francesco.marella@gmail.com>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nv40_graph.c b/drivers/gpu/drm/nouveau/nv40_graph.c
index 53e8afe1dcd1..0616c96e4b67 100644
--- a/drivers/gpu/drm/nouveau/nv40_graph.c
+++ b/drivers/gpu/drm/nouveau/nv40_graph.c
@@ -335,6 +335,27 @@ nv40_graph_init(struct drm_device *dev)
         nv_wr32(dev, 0x400b38, 0x2ffff800);
         nv_wr32(dev, 0x400b3c, 0x00006000);
 
+        /* Tiling related stuff. */
+        switch (dev_priv->chipset) {
+        case 0x44:
+        case 0x4a:
+                nv_wr32(dev, 0x400bc4, 0x1003d888);
+                nv_wr32(dev, 0x400bbc, 0xb7a7b500);
+                break;
+        case 0x46:
+                nv_wr32(dev, 0x400bc4, 0x0000e024);
+                nv_wr32(dev, 0x400bbc, 0xb7a7b520);
+                break;
+        case 0x4c:
+        case 0x4e:
+        case 0x67:
+                nv_wr32(dev, 0x400bc4, 0x1003d888);
+                nv_wr32(dev, 0x400bbc, 0xb7a7b540);
+                break;
+        default:
+                break;
+        }
+
         /* Turn all the tiling regions off. */
         for (i = 0; i < pfb->num_tiles; i++)
                 nv40_graph_set_region_tiling(dev, i, 0, 0, 0);