[Intel-gfx] Updated -testing branch

[Daniel Vetter]

Hi all,

Note that the new -next is rebased a bit and not a descendant of the old
-nextso that I could fish out a few fixes for 3.6.

Highlights of the entire thing:
- hsw hdmi improvements (Paulo)
- ips/rps locking rework and cleanups
- rc6 on ilk by default again
- hw context&dp&dpff support for hsw (Ben)
- GET_PARAM_HAS_SEMAPHORES (Chris)
- gen6+ pipe_control improvements (Chris)
- set_cacheing ioctl and assorted support code (Chris)
- cleanups around the busy/idle/pm code (Chris&me)
- flushing_list removal, hopefully for good (Chris)
- read_reg ioctl (Ben)
- support the ns2501 dvo (Thomas Richter)
- avoid the costly gen6+ "missed IRQ" workaround where we don't need a
  race-free seqno readback (Chris)
- various bits&pieces, mostly early patches from the modeset rework branch

Happy testing!

Cheers, Daniel

-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48