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drm/i915: set w/a bit for snb pagefaults
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 11 Apr 2012 18:42:39 +0000 (20:42 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 17 Apr 2012 09:19:56 +0000 (11:19 +0200)
Bspec says that we need to set this: vol1c.3 "Blitter Command
Streamer", Section 1.1.2.1 "GAB_CTL_REG - GAB Unit Control Register".

We don't really rely on pagefaults, but who knows what this all
affects.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

No differences found
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