drm/amd/display: Add pstate verification and recovery for DCN31

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[Why]
To debug when p-state is being blocked and avoid PMFW hangs when
it does occur.

[How]
Re-use the DCN10 hardware sequencer by adding a new interface for
verifying p-state high on the hubbub. The interface is mostly the
same as the DCN10 interface, but the bit definitions have changed for
the debug bus.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2021-12-17 09:55:54 -05:00 • committed by Alex Deucher

parent 65722ff618

commit e7031d8258

7 changed files with 73 additions and 4 deletions

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1

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c

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10

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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1

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hubbub.c

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1

drivers/gpu/drm/amd/display/dc/dcn301/dcn301_hubbub.c

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60

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c

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2

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c

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2

drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h

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