On Thu, Aug 20, 2015 at 03:45:20PM +0800, Zhiyuan Lv wrote: > Broadwell hardware supports both ring buffer mode and execlist mode. > When i915 runs inside a VM with Intel GVT-g, we allow execlist mode > only. The reason is that GVT-g does not support the dynamic mode > switch between ring buffer mode and execlist mode when running > multiple virtual machines. Consider that ring buffer mode is legacy > mode, it makes sense to drop it inside virtual machines.
If that is the case, you should query the host as to what mode it is running. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
