On Fri, Jan 19, 2018 at 9:32 PM, Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote: > The DRM driver most notably, but also out of tree drivers (for now) like > the VPU or GPU drivers, are quite big consumers of large, contiguous memory > buffers. However, the sunxi_defconfig doesn't enable CMA in order to > mitigate that, which makes them almost unusable. > > Enable it to make sure it somewhat works. IIRC the default size for CMA pretty much limits it to small tablet screen resolutions. Is this something we want to leave up to the user? Thanks ChenYu