kernel.git/include/drm/display/drm_dsc_helper.h, branch linux-rolling-stable

drm/display/dsc: Add a helper to dump the DSC configuration

2024-07-03T15:05:12Z

Add a helper to dump the Display Stream Compression configuration, taken into use in the i915 driver by a later patch. v2: - Rebase on the s/DRM_X16/FXP_Q4 change. - s/DSC configration/DSC configuration in the function documentation. Acked-by: Jani Nikula Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20240628164451.1177612-3-imre.deak@intel.com

drm/display/dsc: Add drm_dsc_get_bpp_int helper

2023-06-15T09:58:56Z

Add helper to get the integer value of drm_dsc_config.bits_per_pixel Reviewed-by: Marijn Suijten Reviewed-by: Dmitry Baryshkov Signed-off-by: Jessica Zhang Patchwork: https://patchwork.freedesktop.org/patch/539268/ Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-3-bafc7be95691@quicinc.com Signed-off-by: Dmitry Baryshkov

drm/display/dsc: add helper to set semi-const parameters

2023-06-15T09:58:56Z

Add a helper setting config values which are typically constant across operating modes (table E-4 of the standard) and mux_word_size (which is a const according to 3.5.2). Signed-off-by: Dmitry Baryshkov Reviewed-by: Marijn Suijten Signed-off-by: Jessica Zhang Patchwork: https://patchwork.freedesktop.org/patch/539280/ Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-2-bafc7be95691@quicinc.com Signed-off-by: Dmitry Baryshkov

drm/display/dsc: Add flatness and initial scale value calculations

2023-06-15T09:58:55Z

Add helpers to calculate det_thresh_flatness and initial_scale_value as these calculations are defined within the DSC spec. Reviewed-by: Marijn Suijten Reviewed-by: Dmitry Baryshkov Signed-off-by: Jessica Zhang Patchwork: https://patchwork.freedesktop.org/patch/539282/ Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-1-bafc7be95691@quicinc.com Signed-off-by: Dmitry Baryshkov

drm/display/dsc: add YCbCr 4:2:2 and 4:2:0 RC parameters

2023-05-19T21:14:56Z

Include RC parameters for YCbCr 4:2:2 and 4:2:0 configurations. Reviewed-by: Suraj Kandpal Signed-off-by: Dmitry Baryshkov Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-9-dmitry.baryshkov@linaro.org Acked-by: Dave Airlie

drm/display/dsc: split DSC 1.2 and DSC 1.1 (pre-SCR) parameters

2023-05-19T21:14:42Z

The array of rc_parameters contains a mixture of parameters from DSC 1.1 and DSC 1.2 standards. Split these tow configuration arrays in preparation to adding more configuration data. Signed-off-by: Dmitry Baryshkov Reviewed-by: Suraj Kandpal Reviewed-by: Suraj Kandpal Reviewed-by: Suraj Kandpal Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-7-dmitry.baryshkov@linaro.org Acked-by: Dave Airlie

drm/i915/dsc: move DSC tables to DRM DSC helper

2023-05-19T21:14:14Z

Move DSC RC tables to DRM DSC helper. No additional code changes and/or cleanups are a part of this commit, it will be cleaned up in the followup commits. Reviewed-by: Jani Nikula Signed-off-by: Dmitry Baryshkov Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-4-dmitry.baryshkov@linaro.org Acked-by: Dave Airlie

drm/i915/dsc: move rc_buf_thresh values to common helper

2023-05-19T21:13:59Z

The rc_buf_thresh values are common to all DSC implementations. Move them to the common helper together with the code to propagate them to the drm_dsc_config. Reviewed-by: Jani Nikula Reviewed-by: Marijn Suijten Signed-off-by: Dmitry Baryshkov Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20230517102807.2181589-3-dmitry.baryshkov@linaro.org Acked-by: Dave Airlie

drm/display: Move DSC header and helpers into display-helper module

2022-04-25T09:19:36Z

DSC is the Display Stream Compression standard for DisplayPort. Move the DSC code into display/ and split the header into files for protocol core and DRM helpers. Adapt all users of the code. No functional changes. To avoid the proliferation of Kconfig options, DSC is part of DRM's support for DisplayPort. If necessary, a new option could make DSC an independent feature. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-6-tzimmermann@suse.de