From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat, 27 Nov 2010 21:30:41 +0000 (+0100)
Subject: drm/i915: fix regression due to ba3d8d749b01548b9
X-Git-Tag: v2.6.37-rc5~39^2~3^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de18a29e0fa3904894b4e02fae0e712cd43f740c;p=pandora-kernel.git

drm/i915: fix regression due to ba3d8d749b01548b9

We don't track gpu flush request in any special way. So even with
obj->write_domain == 0, a gpu flush might be outstanding but no
yet executed. Even worse, the latest request might use the object
only for reading. So and unconditional call to object_wait_rendering
is needed for !pipelined.

Hence revert that patch fully and untangle the flushing from the
synchronization again.

Reported-by: Keith Packard <keithp@keithp.com>
Tested-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---

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