[v19,0/8] Refactor Gen11+ SAGV support

Message

Lisovskiy, Stanislav March 9, 2020, 4:11 p.m. UTC

For Gen11+ platforms BSpec suggests disabling specific
QGV points separately, depending on bandwidth limitations
and current display configuration. Thus it required adding
a new PCode request for disabling QGV points and some
refactoring of already existing SAGV code.
Also had to refactor intel_can_enable_sagv function,
as current seems to be outdated and using skl specific
workarounds, also not following BSpec for Gen11+.

v17: Had to rebase the whole series.

v19: Added some new patches in between, rebased

Stanislav Lisovskiy (8):
  drm/i915: Start passing latency as parameter
  drm/i915: Introduce skl_plane_wm_level accessor.
  drm/i915: Add intel_bw_get_*_state helpers
  drm/i915: Refactor intel_can_enable_sagv
  drm/i915: Added required new PCode commands
  drm/i915: Rename bw_state to new_bw_state
  drm/i915: Restrict qgv points which don't have enough bandwidth.
  drm/i915: Enable SAGV support for Gen12

 drivers/gpu/drm/i915/display/intel_bw.c       | 202 +++++--
 drivers/gpu/drm/i915/display/intel_bw.h       |  36 ++
 drivers/gpu/drm/i915/display/intel_display.c  |  33 +-
 .../drm/i915/display/intel_display_types.h    |   6 +
 drivers/gpu/drm/i915/i915_reg.h               |   4 +
 drivers/gpu/drm/i915/intel_pm.c               | 516 ++++++++++++++++--
 drivers/gpu/drm/i915/intel_pm.h               |   4 +
 drivers/gpu/drm/i915/intel_sideband.c         |   2 +
 8 files changed, 689 insertions(+), 114 deletions(-)