kernel.git/drivers/gpu/drm/amd/display/dc/dsc, branch linux-6.5.y

drm/amd/display: drop redundant memset() in get_available_dsc_slices()

2023-06-09T14:38:37Z

get_available_dsc_slices() returns the number of indices set, and all of the users of get_available_dsc_slices() don't cross the returned bound when iterating over available_slices[]. So, the memset() in get_available_dsc_slices() is redundant and can be dropped. Fixes: 97bda0322b8a ("drm/amd/display: Add DSC support for Navi (v2)") Reported-by: Christophe JAILLET Reviewed-by: Rodrigo Siqueira Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: DSC policy override when ODM combine is forced

2023-04-18T20:28:52Z

[why] When we force ODM combine with DSC, we lose several 8 bit and 10 bit modes in validation and thus not able to use HDR. This is due to the number of horizontal slices used in DSC not properly being accounted for currently when 2:1 ODM Combine is forced. [how] Enforce at least two horizontal slices are used for DSC when ODM combine is forced. Reviewed-by: Nicholas Kazlauskas Acked-by: Qingqing Zhuo Signed-off-by: Nasir Osman Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: convert link.h functions to function pointer style

2023-03-14T19:35:03Z

[Why & How] All dc subcomponents should call another dc component via function pointers stored in a component structure. This is part of dc coding convention since the beginning. The reason behind this is to improve encapsulation and polymorphism. The function contract is extracted into a single link service structure defined in link.h header file and implemented only in link_factory.c instead of spreading across multiple files in link component file structure. Reviewed-by: Jun Lei Acked-by: Qingqing Zhuo Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Rename DCN config to FP

2023-03-07T19:22:40Z

[Why & How] The only reason we have the DCN config is for floating point support. Rename it to make that clear and (hopefully) avoid misuse of the config in the future. Reviewed-by: Rodrigo Siqueira Acked-by: Qingqing Zhuo Signed-off-by: Harry Wentland Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Build DSC without DCN config

2023-03-07T19:22:40Z

[Why & How] DSC needs DCN but we are trying reduce the usage of the DCN flag. It's easier to build the DSC code sprinkled around DC core and the DMs and just guard the place where DSC uses floating point code. Since DSC is never enabled on non-DCN ASICs this won't have any effect. Reviewed-by: Hamza Mahfooz Acked-by: Qingqing Zhuo Signed-off-by: Harry Wentland Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: fix typo in dc_dsc_config_options structure

2023-03-07T19:22:39Z

[WHY] There is a typo in dc_dsc_config_options structure [HOW] Fix the typo Reviewed-by: Wenjing Liu Acked-by: Qingqing Zhuo Signed-off-by: Mike Hsieh Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add height granularity limitation for dsc slice height calculation

2023-03-07T19:22:39Z

[WHY] eDP add new limitation for Y granularity for selected update feature. DSC does not include this limitation while calculating slice height. [HOW] Add new limitation while looking for DSC slice height. Reviewed-by: Cruise Hung Acked-by: Qingqing Zhuo Signed-off-by: Mike Hsieh Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add rc_params_override option in dc_dsc_config

2023-01-31T19:00:51Z

[why] Current RC params are based on VESA recommended configurations. Some DSC sink may prefer non standard rc params values due to hardware limitations. To support those DSC sink we will allow DM to optionally pass rc_params_ovrd in dc_dsc_config so DC will override the default VESA recommended configurations. Reviewed-by: Martin Leung Acked-by: Alex Hung Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd: Fix spelling typo in comments

2022-06-03T20:43:36Z

Fix spelling typo in comments. Reported-by: k2ci Signed-off-by: pengfuyuan Signed-off-by: Alex Deucher

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