[v5,0/6] Panel replay phase1 implementation

Message

Manna, Animesh Sept. 5, 2023, 7:35 a.m. UTC

Panel Replay is a power saving feature for DP 2.0 monitor and similar
to PSR on EDP.

These patches are basic enablement patches added on top of
existing psr framework to enable full-screen live active frame
update mode of panel replay. Panel replay also can be enabled
in selective update mode which will be enabled in a incremental
approach.

As per current design panel replay priority is higher than psr.
intel_dp->psr.panel_replay_enabled flag indicate panel replay is enabled.
intel_dp->psr.panel_replay_enabled + intel_dp->psr.psr2_enabled indicates
panel replay is enabled in selective update mode.
intel_dp->psr.panel_replay_enabled + intel_dp->psr.psr2_enabled +
intel_psr.selective_fetch enabled indicates panel replay is
enabled in selective update mode with selective fetch.
PSR replated flags remain same like before.

Note: The patches are under testing by using panel replay emulator and
panel is not avalible.

Cc: Jouni Högander <[e-mail]>
Signed-off-by: Animesh Manna <[e-mail]>

Animesh Manna (5):
  drm/panelreplay: dpcd register definition for panelreplay
  drm/i915/panelreplay: Initializaton and compute config for panel
    replay
  drm/i915/panelreplay: Enable panel replay dpcd initialization for DP
  drm/i915/panelreplay: enable/disable panel replay
  drm/i915/panelreplay: Debugfs support for panel replay

Jouni Högander (1):
  drm/i915/psr: Move psr specific dpcd init into own function

 .../drm/i915/display/intel_display_types.h    |  15 +-
 drivers/gpu/drm/i915/display/intel_dp.c       |  45 ++-
 drivers/gpu/drm/i915/display/intel_dp_mst.c   |   3 +
 drivers/gpu/drm/i915/display/intel_psr.c      | 269 ++++++++++++------
 drivers/gpu/drm/i915/display/intel_psr.h      |   7 +
 include/drm/display/drm_dp.h                  |  18 ++
 6 files changed, 257 insertions(+), 100 deletions(-)