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path: root/drivers/gpu/drm/amd/display/dc/resource/dcn201
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2024-07-23drm/amd/display: Add null check for head_pipe in ↵Srinivasan Shanmugam1-1/+3
dcn201_acquire_free_pipe_for_layer This commit addresses a potential null pointer dereference issue in the `dcn201_acquire_free_pipe_for_layer` function. The issue could occur when `head_pipe` is null. The fix adds a check to ensure `head_pipe` is not null before asserting it. If `head_pipe` is null, the function returns NULL to prevent a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed 'head_pipe' could be null (see line 1010) Cc: Tom Chung <[email protected]> Cc: Rodrigo Siqueira <[email protected]> Cc: Roman Li <[email protected]> Cc: Alex Hung <[email protected]> Cc: Aurabindo Pillai <[email protected]> Cc: Harry Wentland <[email protected]> Cc: Hamza Mahfooz <[email protected]> Signed-off-by: Srinivasan Shanmugam <[email protected]> Reviewed-by: Tom Chung <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2024-06-19drm/amd/display: Add null checker before access structsAlex Hung1-1/+3
Checks null pointer before accessing various structs. This fixes 5 NULL_RETURNS issues reported by Coverity. Reviewed-by: Harry Wentland <[email protected]> Acked-by: Hamza Mahfooz <[email protected]> Signed-off-by: Alex Hung <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2024-04-12drm/amd/display: Update resource capabilities and debug struct for DCN201Rodrigo Siqueira1-1/+3
Some of the resource capabilities for DCN201 and the debug default option are outdated. This commit just set some of the missing configurations for DCN201. Acked-by: Hamza Mahfooz <[email protected]> Signed-off-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2024-04-12drm/amd/display: Adjust some includes used by displayRodrigo Siqueira1-1/+0
Some of the includes used in the DC can be removed and others need to be update. This commit adjusts some of those headers in the display code. Acked-by: Hamza Mahfooz <[email protected]> Signed-off-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2024-04-12drm/amd/display: Add comments to improve the code readabilityRodrigo Siqueira1-0/+1
This commit just introduce some basic comments that helps to understand the overall behavior of some structs. Acked-by: Hamza Mahfooz <[email protected]> Signed-off-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2023-11-17drm/amd/display: Refactor resource into component directoryMounika Adhuri2-0/+1358
[WHY] Move all resource files to unique folder resource. [HOW] Created resource folder in dc, moved the dcnxx_resource.c and dcnxx_resource.h files into corresponding new folders inside the resource and made appropriate changes for compilation in Makefiles. Reviewed-by: Martin Leung <[email protected]> Acked-by: Alex Hung <[email protected]> Signed-off-by: Mounika Adhuri <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>