From: Keith Packard <keithp@keithp.com>
Date: Mon, 13 Jul 2009 06:53:17 +0000 (-0700)
Subject: drm/i915: Allow frame buffers up to 4096x4096 on 915/945 class hardware
X-Git-Tag: v2.6.31-rc6~37^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e4d6fa72619aeea271d2ad704757717b06e291a;p=pandora-kernel.git

drm/i915: Allow frame buffers up to 4096x4096 on 915/945 class hardware

The 915 and 945 scanout engines can handle frame buffers up to 4096 pixels
wide. Pre-9xx hardware has an 8192 byte stride limit, and so we leave the
existing 2048 max in place.

I'm not sure why we limit the height to the same value; there's no intrinsic
hardware limit in the scanout engine.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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