| Message ID | 20231110101020.4067342-1-ankit.k.nautiyal@intel.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add DSC fractional bpp support | expand |
On 11/10/2023 3:40 PM, Ankit Nautiyal wrote: > 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. > > Rev10: Rebased and added DSC Fractional support for DP MST. Pushed patches 1-8 to drm-intel-next, thanks for the reviews, acks. Regards, Ankit > > Ankit Nautiyal (8): > 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 > drm/i915/dp_mst: Use precision of 1/16 for computing bpp > drm/i916/dp_mst: Iterate over the DSC bpps as per DSC precision > support > drm/i915/dp_mst: Add support for forcing dsc fractional bpp via > debugfs > > 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 | 10 +-- > drivers/gpu/drm/i915/display/intel_audio.c | 16 ++-- > drivers/gpu/drm/i915/display/intel_bios.c | 4 +- > drivers/gpu/drm/i915/display/intel_cdclk.c | 5 +- > drivers/gpu/drm/i915/display/intel_display.c | 6 +- > .../drm/i915/display/intel_display_debugfs.c | 84 ++++++++++++++++++ > .../drm/i915/display/intel_display_types.h | 4 +- > drivers/gpu/drm/i915/display/intel_dp.c | 87 +++++++++++-------- > drivers/gpu/drm/i915/display/intel_dp_mst.c | 85 +++++++++++------- > drivers/gpu/drm/i915/display/intel_fdi.c | 3 +- > drivers/gpu/drm/i915/display/intel_link_bw.c | 2 +- > .../gpu/drm/i915/display/intel_qp_tables.c | 3 - > drivers/gpu/drm/i915/display/intel_vdsc.c | 29 +++++-- > include/drm/display/drm_dp_helper.h | 1 + > 15 files changed, 266 insertions(+), 100 deletions(-) >
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. Rev10: Rebased and added DSC Fractional support for DP MST. Ankit Nautiyal (8): 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 drm/i915/dp_mst: Use precision of 1/16 for computing bpp drm/i916/dp_mst: Iterate over the DSC bpps as per DSC precision support drm/i915/dp_mst: Add support for forcing dsc fractional bpp via debugfs 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 | 10 +-- drivers/gpu/drm/i915/display/intel_audio.c | 16 ++-- drivers/gpu/drm/i915/display/intel_bios.c | 4 +- drivers/gpu/drm/i915/display/intel_cdclk.c | 5 +- drivers/gpu/drm/i915/display/intel_display.c | 6 +- .../drm/i915/display/intel_display_debugfs.c | 84 ++++++++++++++++++ .../drm/i915/display/intel_display_types.h | 4 +- drivers/gpu/drm/i915/display/intel_dp.c | 87 +++++++++++-------- drivers/gpu/drm/i915/display/intel_dp_mst.c | 85 +++++++++++------- drivers/gpu/drm/i915/display/intel_fdi.c | 3 +- drivers/gpu/drm/i915/display/intel_link_bw.c | 2 +- .../gpu/drm/i915/display/intel_qp_tables.c | 3 - drivers/gpu/drm/i915/display/intel_vdsc.c | 29 +++++-- include/drm/display/drm_dp_helper.h | 1 + 15 files changed, 266 insertions(+), 100 deletions(-)