[Intel-gfx] [PATCH 00/23] Enable Display Stream Compression on eDP/DP

[Manasi Navare]

Cc: dri-devel at lists.freedesktop.org

VESA has developed an industry standard Display Stream Compression(DSC)
for interoperable, visually lossless compression over display links to
address the needs for higher resolution displays.

This patch series enables DSC on Gen 10 eDP and Gen 11 eDP/DP panels.
This implementation is based on VESA DP 1.4 and DSC specifications.

These patches have been validated on 1080p eDP 1.4 panel with DSC support
and FPGA based DP 1.4 sink device.

Gaurav K Singh (6):
  drm/dsc: Define VESA Display Stream Compression Capabilities
  drm/dsc: Define the DSC 1.1 and 1.2 Line Buffer depth constants
  drm/i915/dsc: Define & Compute VESA DSC params
  drm/i915/dsc: Compute Rate Control parameters for DSC
  drm/i915/dp: Enable/Disable DSC in DP Sink
  drm/i915/dp: Disable DSC in source by disabling DSS CTL bits

Manasi Navare (15):
  drm/dp: Add DP DSC DPCD receiver capability size define and missing
    SHIFT
  drm/i915/dp: Cache the DP/eDP DSC DPCD register set on Hotplug/eDP
    Init
  drm/dp: DRM DP helper/macros to get DP sink DSC parameters
  drm/i915/dp: Add helpers for Compressed BPP and Slice Count for DSC
  drm/i915/dp: Validate modes using max Output BPP and slice count when
    DSC supported
  drm/dp: Define payload size for DP SDP PPS packet
  drm/dsc: Define Display Stream Compression PPS infoframe
  drm/dsc: Add helpers for DSC picture parameter set infoframes
  drm/i915/dp: Add DSC params and DSC config to intel_crtc_state
  drm/i915/dp: Compute DSC pipe config in atomic check
  drm/i915/dp: Do not enable PSR2 if DSC is enabled
  drm/i915/dp: Configure i915 Picture parameter Set registers during DSC
    enabling
  drm/i915/dp: Use the existing write_infoframe() for DSC PPS SDPs
  drm/i915/dp: Populate DSC PPS SDP and send PPS infoframes
  drm/i915/dp: Configure Display stream splitter registers during DSC
    enable

Srivatsa, Anusha (2):
  drm/dsc: Define Rate Control values that do not change over
    configurations
  drm/i915/icl: Add Display Stream Splitter control registers

 Documentation/gpu/drm-kms-helpers.rst |   12 +
 drivers/gpu/drm/Makefile              |    2 +-
 drivers/gpu/drm/drm_dp_helper.c       |   89 +++
 drivers/gpu/drm/drm_dsc.c             |  221 +++++++
 drivers/gpu/drm/i915/Makefile         |    3 +-
 drivers/gpu/drm/i915/i915_drv.h       |    3 +
 drivers/gpu/drm/i915/i915_reg.h       |   34 ++
 drivers/gpu/drm/i915/intel_ddi.c      |    5 +
 drivers/gpu/drm/i915/intel_display.c  |   34 +-
 drivers/gpu/drm/i915/intel_display.h  |    3 +-
 drivers/gpu/drm/i915/intel_dp.c       |  325 +++++++++-
 drivers/gpu/drm/i915/intel_dp_mst.c   |    2 +-
 drivers/gpu/drm/i915/intel_drv.h      |   21 +
 drivers/gpu/drm/i915/intel_hdmi.c     |   23 +-
 drivers/gpu/drm/i915/intel_psr.c      |   10 +
 drivers/gpu/drm/i915/intel_vdsc.c     | 1080 +++++++++++++++++++++++++++++++++
 include/drm/drm_dp_helper.h           |   40 ++
 include/drm/drm_dsc.h                 |  506 +++++++++++++++
 18 files changed, 2380 insertions(+), 33 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_dsc.c
 create mode 100644 drivers/gpu/drm/i915/intel_vdsc.c
 create mode 100644 include/drm/drm_dsc.h

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2.7.4