drm/amd/display: Use VUPDATE_NO_LOCK instead of VUPDATE for dcn30

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[Why]
Soft hangs occur when FreeSync is engaged since we utilize VUPDATE
(which doesn't fire when holding the pipe lock) to send back vblank
events when FreeSync is active.

[How]
The alternative (working) interrupt source for this mechanism is
VUPDATE_NO_LOCK. We already use this all other DCN revisions so align
dcn30 with those as well.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Nicholas Kazlauskas 2020-07-08 13:29:58 -04:00 • committed by Alex Deucher

parent 131a3c7474

commit c74f932248

1 changed files with 18 additions and 10 deletions

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drivers/gpu/drm/amd/display/dc/irq/dcn30/irq_service_dcn30.c

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