kernel/linux.git/drivers/gpu/drm/amd/display/dc/dcn321, branch v6.3.2

drm/amd/display: fix MALL size hardcoded for DCN321

2023-01-31T19:00:57+00:00

[Why] MALL size available can vary for different SKUs MALL size was still hardcoded for DCN321 [How] Remove hardcoding MALL size for DCN321 Reviewed-by: Alvin Lee Acked-by: Alex Hung Signed-off-by: Samson Tam Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: merge dc_link_dp into dc_link

2023-01-24T18:26:25+00:00

[why] Temporarly merge dc_link_dp functions into dc_link for the purpose of removing dc_link_dp files. This is a transitional change for later commits where we will further refactor dc_link file. Reviewed-by: George Shen Acked-by: Alan Liu Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: adjust MALL size available for DCN32 and DCN321

2023-01-24T18:26:25+00:00

[Why] MALL size available can vary for different SKUs. Use num_chans read from VBIOS to determine the available MALL size we can use [How] Define max_chans for DCN32 and DCN321. If num_chans is max_chans, then return max_chans as we can access the entire MALL space. Otherwise, define avail_chans as the number of available channels we are allowed instead. Return corresponding number of channels back and use this to calculate available MALL size. Reviewed-by: Nevenko Stupar Acked-by: Alan Liu Signed-off-by: Samson Tam Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: refactor ddc logic from dc_link_ddc to link_ddc

2023-01-13T19:57:40+00:00

[why] 1. Move dd_link_ddc functions to link_ddc. 2. Move link ddc functions declaration exposed in dc to link.h 3. Move link ddc functions declaration exposed in dm to dc_link.h 4. Remove i2caux_interface.h file Tested-by: Daniel Wheeler Reviewed-by: Jun Lei Acked-by: Rodrigo Siqueira Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher

drm/amd/display: Add debug bit to disable unbounded requesting

2022-12-15T17:18:18+00:00

[Description] Add debug bit to disable unbounded requesting. Reviewed-by: Jun Lei Acked-by: Jasdeep Dhillon Signed-off-by: Dillon Varone Signed-off-by: Alex Deucher

drm/amd/display: Remove DTB DTO on CLK update

2022-12-06T15:13:19+00:00

[Why] DTB DTO is programmed more correctly during link enable. Programming them on CLK update which may arrive frequently and sporadically per flip throws off DTB DTO. [How] Remove DTB DTO programming on clock update. Reviewed-by: Alvin Lee Acked-by: Jasdeep Dhillon Signed-off-by: Chris Park Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Retain phantom pipes when min transition into subvp (#7358)

2022-11-29T16:03:38+00:00

[Description] - When entering into a SubVP config that requires a minimal transition we need to retain phantom pipes and also restore the mall config - This is because the min transition will remove phantom pipes from the context (shallow copy) and not restore it's original state - This is just a workaround, and needs a proper fix Reviewed-by: Jun Lei Acked-by: Jasdeep Dhillon Signed-off-by: Alvin Lee Signed-off-by: Alex Deucher

drm/amd/display: Retain phantom plane/stream if validation fails

2022-11-23T14:47:14+00:00

[Description] - If we fail validation, we should retain the phantom stream/planes - Full updates assume that phantom pipes will be fully removed, but if validation fails we keep the phantom pipes - Therefore we have to retain the plane/stream if validation fails (since the refcount is decremented before validation, and the expectation is that it's fully freed when the old dc_state is released) Reviewed-by: Jun Lei Acked-by: Brian Chang Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Limit HW cursor size of >= 4k

2022-11-23T14:47:13+00:00

[Description] - For SubVP, we cannot support HW cursor if it's greater than 64 x 64 x 4 bytes in size - However, on certain config changes (i.e. pixel format) we can exit SubVP (then change to HW cursor) then re-enter SubVP without changing back to SW cursor because there is no SetCursorAttributes call - To workaround this issue, limit the HW cursor size to be less than 64 x 64 x 4 bytes whenever the stream is >= 4K - Also ensure this W/A only affects DCN that supports SubVP Reviewed-by: Jun Lei Acked-by: Brian Chang Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add margin on DRR vblank start for subvp

2022-11-23T14:47:13+00:00

[Description] - Add margin for HUBP "jitter" for SubVp + DRR case - Also do a min transition even if MPO is added on a non SubVP pipe (i.e. added on DRR pipe for SubVP + DRR) Reviewed-by: Jun Lei Acked-by: Brian Chang Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher