drm/qxl: add support for > 1 output

This adds support for a default of 4 heads, with a command line
parameter to change the default number.

It also overhauls the modesetting code to handle this case properly,
and send the correct things to the hardware at the right time.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2013-07-02 06:37:13 +01:00
commit 07f8d9bdb2
5 changed files with 85 additions and 58 deletions