[v6,00/26] Panel Replay eDP support

Message

Hogander, Jouni June 5, 2024, 10:25 a.m. UTC

This patch set is implementing eDP1.5 Panel Replay for Intel hw. Patch
to disable Region Early Transport by default is reverted as it is
needed by eDP Panel Replay.

Patches 1 - 14 are fixes and clean-ups for DP2.0 Panel Replay found while testing with eDP1.5 panel. Patches 15 - 26 are implementing Panel Replay eDP.

v6:
  - fix and rework sink enable
  - rework checking vblank length for LunarLake and Panel Replay
  - reorder patches
v5:
  - use psr->su_region_et_enabled instead of psr2_su_region_et_valid
  - do not check Vblank >= PSR2_CTL Block Count Number for Panel Replay
v4:
  - add some patch from "Panel Replay fixes" set here
  - check 128b/132b encoding and HDCP enable
  - use intel_alpm_aux_wake_supported instead of local variable
v3:
  - commit message modifications
  - s/intel_psr_psr_mode/intel_psr_print_mode/
  - remove extra space from "PSR mode:  disabled"
  - do not allow eDP Panel Replay when using 128b/132b encoding
  - do not allow eDP Panel Replay when HDCP is enabled
v2:
  - printout "Selective Update enabled (Early Transport)" instead of
    "Selective Update Early Transport enabled"
  - ensure that fastset is performed when the disable bit changes

Jouni Högander (26):
  drm/i915/alpm: Do not use fast_wake_lines for aux less wake time
  drm/i915/alpm: Write also AUX Less Wake lines into ALPM_CTL
  drm/i915/display: Take panel replay into account in vsc sdp unpacking
  drm/i915/display: Skip Panel Replay on pipe comparison if no active
    planes
  drm/display: Add missing Panel Replay Enable SU Region ET bit
  drm/i915/psr: Split enabling sink for PSR and Panel Replay
  drm/i915/alpm: Make alpm support checks non-static
  drm/i915/psr: Use intel_alpm_aux_wake_supported instead of local
    variable
  drm/i915/psr: Add Panel Replay support to intel_psr2_config_et_valid
  drm/i915/psr: Print Panel Replay status instead of frame lock status
  drm/i915/psr: Move vblank length check to separate function
  drm/i915/psr: Take into account SU SDP scanline indication in vblank
    check
  drm/i915/psr: Check vblank against IO buffer wake time on Lunarlake
  dmr/i915/psr: Wake time is aux less wake time for Panel Replay
  drm/i915/psr: Check panel ALPM capability for eDP Panel Replay
  drm/i915/psr: Inform Panel Replay source support on eDP as well
  drm/i915/psr: enable sink for eDP1.5 Panel Replay
  drm/i915/psr: Check panel Early Transport capability for eDP PR
  drm/i915/psr: Perfrom psr2 checks related to ALPM for Panel Replay
  drm/i915/psr: Add Panel Replay compute_config helper
  drm/i915/psr: 128b/132b Panel Replay is not supported on eDP
  drm/i915/psr: HW will not allow PR on eDP when HDCP enabled
  drm/i915/psr: Check Early Transport for Panel Replay as well
  drm/i915/psr: Modify dg2_activate_panel_replay to support eDP
  drm/i915/psr: Add new debug bit to disable Panel Replay
  Revert "drm/i915/psr: Disable early transport by default"

 drivers/gpu/drm/i915/display/intel_alpm.c     |  11 +-
 drivers/gpu/drm/i915/display/intel_alpm.h     |   2 +
 drivers/gpu/drm/i915/display/intel_display.c  |   4 +-
 .../drm/i915/display/intel_display_types.h    |   2 +
 drivers/gpu/drm/i915/display/intel_dp.c       |   5 +-
 drivers/gpu/drm/i915/display/intel_psr.c      | 309 ++++++++++++------
 include/drm/display/drm_dp.h                  |   1 +
 7 files changed, 223 insertions(+), 111 deletions(-)