gma500: add an mmap ioctl

This does the same as the dumb mmap but we want them separated in the ABI
in case a future extension to the dumb interface means we can't treat them
the same way.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
4 files changed