drm/vmwgfx: Enable 3D for new hardware version
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index 01baffd..6ccd993 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -35,6 +35,23 @@
uint32_t fifo_min, hwversion;
const struct vmw_fifo_state *fifo = &dev_priv->fifo;
+ if (!(dev_priv->capabilities & SVGA_CAP_3D))
+ return false;
+
+ if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
+ uint32_t result;
+
+ if (!dev_priv->has_mob)
+ return false;
+
+ mutex_lock(&dev_priv->hw_mutex);
+ vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_3D);
+ result = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
+ mutex_unlock(&dev_priv->hw_mutex);
+
+ return (result != 0);
+ }
+
if (!(dev_priv->capabilities & SVGA_CAP_EXTENDED_FIFO))
return false;