Commits
Dave Airlie committed 702880f2437
Add i915 ioctls to configure pipes for vblank interrupt. i915 vblanks can be generated from either pipe a or b, however a disabled pipe generates no interrupts. This change allows the X server to select which pipe generates vblank interrupts. From: Keith Packard <keith.packard@intel.com> via DRM CVS Signed-off-by: Dave Airlie <airlied@linux.ie>