From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Wed, 13 Aug 2014 08:57:05 +0000 (+0300)
Subject: drm/i915: Add support for variable cursor size on 845/865
X-Git-Tag: fixes-against-v3.18-rc2~73^2~73^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc41c154ffc30afb7ee7e891140dead26fce5c39;p=pandora-kernel.git

drm/i915: Add support for variable cursor size on 845/865

845/865 support different cursor sizes as well, albeit a bit differently
than later platforms. Add the necessary code to make them work.

Untested due to lack of hardware.

v2: Warn but accept invalid stride (Chris)
    Rewrite the cursor size checks for other platforms (Chris)
v3: More polish and magic to the cursor size checks (Chris)
v4: Moar polish and a comment (Chris)

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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