Merge branch 'linux-4.4' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into...

- Vast improvements to gk20a instmem handling.
- Improved PGOB detection + GK107 support.
- Compatibility between old/new interfaces added, final missing piece to
finally enabling userspace to start using them.
- Kepler GDDR5 PLL stability improvements
- Support for non-GPIO (PWM) voltage controllers
- G8x/GT2xx memory clock improvements
- Misc other fixes

* 'linux-4.4' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (45 commits)
  drm/nouveau: bump patchlevel to indicate availability of abi16/nvif interop
  drm/nouveau/abi16: implement limited interoperability with usif/nvif
  drm/nouveau/abi16: introduce locked variant of nouveau_abi16_get()
  drm/nouveau/abi16: remove unused argument from nouveau_abi16_get()
  drm/nouveau/pci: enable c800 magic for Medion Erazer X7827
  drm/nouveau/pci: enable c800 magic for Lenovo Y510P
  drm/nouveau/pll/gk104: fix PLL instability due to bad configuration with gddr5
  drm/nouveau/clk/g84: Enable reclocking for GDDR3 G94-G200
  drm/nouveau/bus/hwsq: Implement VBLANK waiting heuristic
  drm/nouveau/fb/ramnv50: Script changes for G94 and up
  drm/nouveau/fb/ramnv50: Deal with cards without timing entries
  drm/nouveau/fb/ramnv50: Voltage GPIOs
  drm/nouveau/fb/ramgt215: Restructure r111100 calculation for DDR2
  drm/nouveau/fb/ramgt215: Change FBVDD/Q when BIOS asks for it
  drm/nouveau/fb/ramgt215: Transform GPIO ramfuc method from FBVREF-specific to generic
  drm/nouveau/bios/rammap: Identify DLLoff for >= GF100
  drm/nouveau/pci: Handle 5-bit and 8-bit tag field
  drm/nouveau/disp,pm: constify nvkm_object_func structures
  drm/nouveau/gr: add FERMI_COMPUTE_B class to GF110+
  drm/nouveau/gr: document mp error 0x10
  ...