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>

diff --git a/drivers/gpu/drm/nouveau/nv40_graph.c b/drivers/gpu/drm/nouveau/nv40_graph.c
index 53e8afe1dcd1a0dc6fedf5fd9d819edc87e4b918..0616c96e4b67834f9de49511d85c93614e0bf9ea 100644 (file)
--- 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);