[Intel-gfx] [Intel gfx][i-g-t PATCH 3/4] rendercopy/bdw: A workaround for 3D pipeline

[Daniel Vetter]

On Mon, Dec 9, 2013 at 5:47 AM, Xiang, Haihao <haihao.xiang at intel.com> wrote:
> Oh, it works even with an batch which has only MI_BATCH_BUFFER_END.

This sounds like we're missing a tlb/cache invalidate before launching
the batch in the kernel. But the big flush we unconditionally do after
each batch is good enough to fix things. This could also explain some
of the other i-g-t failures ...
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch