]> git.ipfire.org Git - thirdparty/kernel/linux.git/commit
drm/amd/display: Add more checks for DSC / HUBP ONO guarantees
authorNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Wed, 21 May 2025 20:40:25 +0000 (16:40 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 18 Jun 2025 16:19:16 +0000 (12:19 -0400)
commitda63df07112e5a9857a8d2aaa04255c4206754ec
tree99f56bd8902d8ccc598527b38c21c4a9da0e59e4
parentbf6003f2052fe633f5fddeaa6923f13bc46d0e2b
drm/amd/display: Add more checks for DSC / HUBP ONO guarantees

[WHY]
For non-zero DSC instances it's possible that the HUBP domain required
to drive it for sequential ONO ASICs isn't met, potentially causing
the logic to the tile to enter an undefined state leading to a system
hang.

[HOW]
Add more checks to ensure that the HUBP domain matching the DSC instance
is appropriately powered.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c