drm/mgag200: Reject modes that are too big for VRAM
authorChristopher Harvey <charvey@matrox.com>
Tue, 26 Feb 2013 15:55:44 +0000 (10:55 -0500)
committerDave Airlie <airlied@redhat.com>
Thu, 7 Mar 2013 22:31:31 +0000 (08:31 +1000)
commit0ba53171583f86bbcbba951fe172982f7fc3761c
treebaf14d4c84706e13ac7b4c683dd0de476e27443c
parentcc59487a05b1aae6987b4a5d56603ed3e603f82e
drm/mgag200: Reject modes that are too big for VRAM

A monitor or a user could request a resolution greater than the
available VRAM for the backing framebuffer. This change checks the
required framebuffer size against the max VRAM size and rejects modes
if they are too big. This change can also remove a mode request passed
in via the video= parameter.

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/mgag200/mgag200_mode.c