[v12,0/3] Refactor Gen11+ SAGV support

Message

Lisovskiy, Stanislav Dec. 12, 2019, 12:40 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as current seems to be outdated and using skl specific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+.

Stanislav Lisovskiy (3):
  drm/i915: Refactor intel_can_enable_sagv
  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       | 144 ++++--
 drivers/gpu/drm/i915/display/intel_bw.h       |   2 +
 drivers/gpu/drm/i915/display/intel_display.c  |  98 +++-
 .../drm/i915/display/intel_display_types.h    |  12 +
 drivers/gpu/drm/i915/i915_drv.h               |  11 +
 drivers/gpu/drm/i915/i915_reg.h               |   5 +
 drivers/gpu/drm/i915/intel_pm.c               | 422 +++++++++++++++---
 drivers/gpu/drm/i915/intel_pm.h               |   1 +
 drivers/gpu/drm/i915/intel_sideband.c         |  27 +-
 9 files changed, 626 insertions(+), 96 deletions(-)