drm/i915: setup sarea properly in master_priv

If we are running DRI1 userspace, we really need to set the sarea up properly.

thanks to Richard for finding/testing this.

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 62a4bf7b49df..868f574363ad 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -177,6 +177,14 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
         drm_i915_private_t *dev_priv = dev->dev_private;
         struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
 
+        master_priv->sarea = drm_getsarea(dev);
+        if (master_priv->sarea) {
+                master_priv->sarea_priv = (drm_i915_sarea_t *)
+                        ((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
+        } else {
+                DRM_DEBUG("sarea not found assuming DRI2 userspace\n");
+        }
+
         if (init->ring_size != 0) {
                 if (dev_priv->ring.ring_obj != NULL) {
                         i915_dma_cleanup(dev);