[PATCH] drm/drm_fb_helper: fix fbdev with sparc64

[Dave Airlie]

> > Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
> >
> > but I'd like to have someone with more architecture expertise ack this
> > as well.
>
> Agreed. All my testing is using the bochs_drm framebuffer under qemu-system-sparc64
> (a sun4u machine) so it would be nice to get an ACK from Dave or someone else who can
> vouch for this on real hardware.

I'm not sure there exists real hardware that would come down this
path, I believe the last sparc64 with a GPU is a mach64, or maybe an
r128 card.

Otherwise I think using the memcpy io should be fine here on all architectures.

Dave.