[PATCH 0/6] Optimize vrr.guardband

[Ankit Nautiyal <ankit.k.nautiyal@intel.com>]

Instead of setting vrr.guardband to vblank, use optimal guardband that
works for most of the cases. This will help in avoiding need of change
in guardband and fix the LRR feature that needs seamless switching to
a lower refresh rate.

-Patch [1-2] are squashed from series [1] and [2] and are not meant for
 review.
-Patch [3-6] are patches to check the guardband for prefill+PSR+SDP
 latencies and to use a static optimized guardband.

[1] "Preparatory patches for guardband optimization"
https://patchwork.freedesktop.org/series/155661/#rev7

[2] "Introduce helpers for prefill latency calculations"
https://patchwork.freedesktop.org/series/155629/#rev2

Ankit Nautiyal (5):
  [NOT FOR REVIEW] drm/i915/vrr: prep patches for guardband optimization
    squashed
  drm/i915/dp: Add SDP latency computation helper
  drm/i915/psr: Add function to compute max link-wake latency
  drm/i915/display: Add guardband check for feature latencies
  drm/i915/vrr: Use the min static optimized guardband

Ville Syrjälä (1):
  [NOT FOR REVIEW] drm/i915/prefill: Prefill latency calculations series
    squashed

 drivers/gpu/drm/i915/Makefile                |   1 +
 drivers/gpu/drm/i915/display/intel_cdclk.c   |  80 +++++-
 drivers/gpu/drm/i915/display/intel_cdclk.h   |   6 +
 drivers/gpu/drm/i915/display/intel_ddi.c     |   3 +
 drivers/gpu/drm/i915/display/intel_display.c |  82 +++++-
 drivers/gpu/drm/i915/display/intel_dp.c      |  42 +++
 drivers/gpu/drm/i915/display/intel_dp.h      |   4 +
 drivers/gpu/drm/i915/display/intel_psr.c     | 257 +++++++++++++------
 drivers/gpu/drm/i915/display/intel_psr.h     |   3 +
 drivers/gpu/drm/i915/display/intel_vblank.c  |  10 +
 drivers/gpu/drm/i915/display/intel_vblank.h  |   2 +
 drivers/gpu/drm/i915/display/intel_vdsc.c    |   8 +
 drivers/gpu/drm/i915/display/intel_vdsc.h    |   1 +
 drivers/gpu/drm/i915/display/intel_vrr.c     |  90 ++++++-
 drivers/gpu/drm/i915/display/intel_vrr.h     |   2 +-
 drivers/gpu/drm/i915/display/skl_prefill.c   | 157 +++++++++++
 drivers/gpu/drm/i915/display/skl_prefill.h   |  46 ++++
 drivers/gpu/drm/i915/display/skl_scaler.c    | 198 ++++++++++++++
 drivers/gpu/drm/i915/display/skl_scaler.h    |  15 ++
 drivers/gpu/drm/i915/display/skl_watermark.c | 156 +++++------
 drivers/gpu/drm/i915/display/skl_watermark.h |   3 +
 drivers/gpu/drm/xe/Makefile                  |   1 +
 22 files changed, 983 insertions(+), 184 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/display/skl_prefill.c
 create mode 100644 drivers/gpu/drm/i915/display/skl_prefill.h

-- 
2.45.2