[Intel-gfx] [PATCH 0/3] drm/i915 enable RC6 on Ironlake platform

[Zou Nan hai]

The patch series enable RC6 on Ironlake platform.
With those patch, we got about 1W idle power save on Ironlake laptops.

We did performance regession tests on those patches, no
regression found.

Thanks Zhao Yakui to debug and resolve the RC6 issues.

Zou Nan hai (3):
  drm/i915 save power context on ironlake
  drm/i915 save render context on Ironlake
  drm/i915 invalidate indirect state pointers at end of ring exec

 drivers/gpu/drm/i915/i915_dma.c         |    7 ++++
 drivers/gpu/drm/i915/i915_drv.h         |    1 +
 drivers/gpu/drm/i915/i915_reg.h         |   14 +++++++-
 drivers/gpu/drm/i915/intel_display.c    |   56 +++++++++++++++++++++++++------
 drivers/gpu/drm/i915/intel_ringbuffer.c |    9 +++++
 5 files changed, 75 insertions(+), 12 deletions(-)