[v9,00/12] Panel replay selective update support

Message

Hogander, Jouni May 3, 2024, 6:34 a.m. UTC

This patch set is implementing panel replay selective update support
for Intel hardware.

v9:
  - do not add has_psr check into psr2 case in intel_dp_compute_vsc_sdp
  - use drm_dp_dpcd_readb instead of drm_dp_dpcd_read in intel_dp_get_su_capability
  - ensure intel_dp_get_su_capability returns 0 if drm_dp_dpcd_readb fails
v8:
  - use correct offset for DP_PANEL_PANEL_REPLAY_CAPABILITY
v7:
  - use always vsc revision 0x6 for Panel Replay
v6:
  - fixes split to separate patch set
v5:
  - do not use PSR2_STATUS for PSR1
v4:
  - do not rename intel_psr_enabled
  - do not add sel_update_et_enabled into struct intel_psr
v3:
  - do not disable panel replay by default
  - set has_psr for panel replay as well
  - enable sink before link training
  - do not apply all PSR workarounds for panel replay
  - do not write/read registers/bits not applicable for panel replay
  - use psr bit definitions in granularity configuration as well
  - goto unsupported instead of return when global enabled check fails
  - update module parameter descriptions.
v2:
  - make psr pause/resume to work for panel replay as well

Jouni Högander (12):
  drm/i915/psr: Rename has_psr2 as has_sel_update
  drm/i915/display: Do not print "psr: enabled" for on Panel Replay
  drm/i915/dp: Use always vsc revision 0x6 for Panel Replay
  drm/i915/psr: Rename psr2_enabled as sel_update_enabled
  drm/panelreplay: dpcd register definition for panelreplay SU
  drm/i915/psr: Detect panel replay selective update support
  drm/i915/psr: Modify intel_dp_get_su_granularity to support panel
    replay
  drm/i915/psr: Panel replay uses SRD_STATUS to track it's status
  drm/i915/psr: Do not apply workarounds in case of panel replay
  drm/i915/psr: Update PSR module parameter descriptions
  drm/i915/psr: Split intel_psr2_config_valid for panel replay
  drm/i915/psr: Add panel replay sel update support to debugfs interface

 .../drm/i915/display/intel_crtc_state_dump.c  |   7 +-
 drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
 .../drm/i915/display/intel_display_params.c   |   5 +-
 .../drm/i915/display/intel_display_types.h    |   5 +-
 drivers/gpu/drm/i915/display/intel_dp.c       |  17 +-
 drivers/gpu/drm/i915/display/intel_fbc.c      |   5 +-
 drivers/gpu/drm/i915/display/intel_hdmi.c     |   3 +-
 drivers/gpu/drm/i915/display/intel_psr.c      | 227 ++++++++++++------
 include/drm/display/drm_dp.h                  |   6 +
 9 files changed, 184 insertions(+), 93 deletions(-)