drm/amd/display: Disable idle reallow as part of command/gpint execution

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[Why]
Workaroud for a race condition where DMCUB is in the process of
committing to IPS1 during the handshake causing us to miss the
transition into IPS2 and touch the INBOX1 RPTR causing a HW hang.

[How]
Disable the reallow to ensure that we have enough of a gap between entry
and exit and we're not seeing back-to-back wake_and_executes.

Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2024-01-24 10:51:49 -05:00 • committed by Alex Deucher

parent 28b34ad207

commit 6226a5aa77

3 changed files with 4 additions and 2 deletions

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1

drivers/gpu/drm/amd/display/dc/dc.h

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4

drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c

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1

drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c

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