drm/i915: Re-enable GPU semaphores for SandyBridge mobile
This seems to be running stably on my test laptop, so hopefully the
reported hangs where just symptoms of other bugs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 1c3b76a..d461ad5 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -744,8 +744,7 @@
if (from == NULL || to == from)
return 0;
- /* XXX gpu semaphores are currently causing hard hangs on SNB mobile */
- if (INTEL_INFO(obj->base.dev)->gen < 6 || IS_MOBILE(obj->base.dev))
+ if (INTEL_INFO(obj->base.dev)->gen < 6)
return i915_gem_object_wait_rendering(obj);
idx = intel_ring_sync_index(from, to);