This patch series adds support for DSC fractional compressed bpp
for MTL+. The series starts with some fixes, followed by patches that
lay groundwork to iterate over valid compressed bpps to select the
'best' compressed bpp with optimal link configuration (taken from
upstream series: https://patchwork.freedesktop.org/series/105200/).
The later patches, add changes to accommodate compressed bpp with
fractional part, including changes to QP calculations.
To get the 'best' compressed bpp, we iterate over the valid compressed
bpp values, but with fractional step size 1/16, 1/8, 1/4 or 1/2 as per
sink support.
The last 2 patches add support to depict DSC sink's fractional support,
and debugfs to enforce use of fractional bpp, while choosing an
appropriate compressed bpp.
Ankit Nautiyal (5):
drm/display/dp: Add helper function to get DSC bpp precision
drm/i915/display: Store compressed bpp in U6.4 format
drm/i915/display: Consider fractional vdsc bpp while computing m_n
values
drm/i915/audio : Consider fractional vdsc bpp while computing tu_data
drm/i915/dp: Iterate over output bpp with fractional step size
Swati Sharma (2):
drm/i915/dsc: Add debugfs entry to validate DSC fractional bpp
drm/i915/dsc: Allow DSC only with fractional bpp when forced from
debugfs
Vandita Kulkarni (1):
drm/i915/dsc/mtl: Add support for fractional bpp
drivers/gpu/drm/display/drm_dp_helper.c | 27 ++++++
drivers/gpu/drm/i915/display/icl_dsi.c | 11 +--
drivers/gpu/drm/i915/display/intel_audio.c | 17 ++--
drivers/gpu/drm/i915/display/intel_bios.c | 6 +-
drivers/gpu/drm/i915/display/intel_cdclk.c | 6 +-
drivers/gpu/drm/i915/display/intel_display.c | 8 +-
drivers/gpu/drm/i915/display/intel_display.h | 2 +-
.../drm/i915/display/intel_display_debugfs.c | 84 +++++++++++++++++++
.../drm/i915/display/intel_display_types.h | 4 +-
drivers/gpu/drm/i915/display/intel_dp.c | 81 +++++++++++-------
drivers/gpu/drm/i915/display/intel_dp_mst.c | 32 ++++---
drivers/gpu/drm/i915/display/intel_fdi.c | 2 +-
.../i915/display/intel_fractional_helper.h | 36 ++++++++
.../gpu/drm/i915/display/intel_qp_tables.c | 3 -
drivers/gpu/drm/i915/display/intel_vdsc.c | 30 +++++--
include/drm/display/drm_dp_helper.h | 1 +
16 files changed, 276 insertions(+), 74 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_fractional_helper.h
--
2.25.1
