kernel/drivers/gpu/drm/amd/display/dc/dcn10, branch linux-rolling-stable

drm/amd/display: log destination of vertical interrupt

2025-02-13T02:02:57Z

[Why] Knowing the destination of OTG's vertical interrupt 2 is useful for debugging, but it is not currently included in the OTG state readback logic [How] Read the OTG interrupt destination register to get the vertical interrupt 2 destination on ASICs that have this register when reading back the OTG state from hardware Reviewed-by: Sung Lee Reviewed-by: Aric Cyr Signed-off-by: Josip Pavic Signed-off-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Change parameters to fix certain compiler errors

2024-11-08T16:45:29Z

[Why] String literals must be assigned to const char pointers. [How] By adding const keyword to fix compilation errors. Reviewed-by: Lohita Mudimela Signed-off-by: Revalla Hari Krishna Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: Fix low black values by increasing error

2024-10-07T18:12:01Z

[WHY] Regamma resolution for the first few black levels can have problems for calibration. [HOW] HW LUT is divided into N power-of-2 regions each with K segments. For SDR mode we set min point at 2^-10 and increments of 2^-13. It's generally more than 8-bit SDR needs, but some calibration tools and API use 12-bit curves. The fix shifts starting point to 2^-12 and starting increments at 2^-16. Reviewed-by: Krunoslav Kovac Signed-off-by: Peterson Signed-off-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix index out of bounds in degamma hardware format translation

2024-07-23T21:41:19Z

Fixes index out of bounds issue in `cm_helper_translate_curve_to_degamma_hw_format` function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:594 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:595 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:596 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max Cc: Tom Chung Cc: Rodrigo Siqueira Cc: Roman Li Cc: Alex Hung Cc: Aurabindo Pillai Cc: Harry Wentland Cc: Hamza Mahfooz Signed-off-by: Srinivasan Shanmugam Reviewed-by: Tom Chung Signed-off-by: Alex Deucher

drm/amd/display: Refactoring MPC

2024-07-23T21:07:11Z

[Why] To refactor MPC files [How] Moved MPC files to respective folders and updated makefiles appropriately. Reviewed-by: Martin Leung Signed-off-by: Jerry Zuo Signed-off-by: Mounika Adhuri Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactoring OPP

2024-07-23T21:07:10Z

[Why] To refactor OPP files [How] Moved opp related files to specific opp folder and updated Makefiles. Acked-by: Rodrigo Siqueira Signed-off-by: Jerry Zuo Signed-off-by: Revalla Hari Krishna Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Move dio files into dio folder

2024-07-01T20:10:35Z

[why] Refactor the code of dio to unit test. [how] Moved files to respective folders and changed cMakeLists and makefiles. Acked-by: Rodrigo Siqueira Signed-off-by: Jerry Zuo Signed-off-by: Bhuvanachandra Pinninti Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Check and log for function error codes

2024-06-27T21:10:36Z

[WHAT & HOW] BIOS_CMD_TABLE_REVISION and link_transmitter_control can return error codes and errors should be reported. This fixes 3 CHECKED_RETURN issues reported by Coverity. Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor HUBP into component folder.

2024-05-08T19:17:03Z

[why] cleaning up the code refactor requires hubp to be in its own component. [how] move all files under newly created hubp folder and fixing the makefiles. Reviewed-by: Martin Leung Acked-by: Tom Chung Signed-off-by: Bhuvana Chandra Pinninti Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor HUBBUB into component folder

2024-04-30T13:56:31Z

[why] cleaning up the code refactor requires hubbub to be in its own component. [how] Move all files under newly created hubbub folder and fix the makefiles. Reviewed-by: Martin Leung Acked-by: Wayne Lin Signed-off-by: Revalla Hari Krishna Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher