Hi all, here are some patches for letting the BIOS do some further power
savings on HSW, now based on intel-drm-nightly with Paulo's PC8+ work.
Patches 1-4 are the glue code to wrap the BIOS SWSCI calls into a few
sensible function calls.
Patches 5-6 are for reference only, and I presume they will have to be
tweaked based on testing. Where exactly to do the calls? What parameters
are to be used in the end? Possibly calls need to be added on the
suspend/resume paths too.
I don't have the setup to do the testing and measurements, but I hope
these will enable others.
BR,
Jani.
Jani Nikula (6):
drm/i915: expose intel_ddi_get_encoder_port()
drm/i915: add plumbing for SWSCI
drm/i915: add opregion function to notify bios of encoder
enable/disable
drm/i915: add opregion function to notify bios of adapter power state
DRAFT: drm/i915: do display power state notification on crtc
enable/disable
DRAFT: drm/i915: do adapter power state notification on PC8+
enable/disable
drivers/gpu/drm/i915/i915_drv.h | 12 ++
drivers/gpu/drm/i915/intel_ddi.c | 2 +-
drivers/gpu/drm/i915/intel_display.c | 12 +-
drivers/gpu/drm/i915/intel_drv.h | 1 +
drivers/gpu/drm/i915/intel_opregion.c | 200 ++++++++++++++++++++++++++++++++-
5 files changed, 223 insertions(+), 4 deletions(-)
--
1.7.9.5
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