drm/i915: Don't emit mbox updates without semaphores
authorBen Widawsky <benjamin.widawsky@intel.com>
Tue, 17 Dec 2013 04:50:38 +0000 (20:50 -0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 17 Dec 2013 08:56:29 +0000 (09:56 +0100)
commit52ed23253b68e1cf154b03d91bed619504cf955b
treefc48ef8e78dba246466d1771218f82475c153cfa
parent0e79284d138d01a794cb860af5c4d2c0eb8f6fda
drm/i915: Don't emit mbox updates without semaphores

Aside from the fact that it leaves confusing dumps on error capture, it
is entirely unnecessary, and potentially harmful in cases like BDW,
where the instruction has changed.

In reality (seemingly), this will have no behavioral impact.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_ringbuffer.c