drm/amd/display: Ensure DCN save after VM setup

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[Why]
DM initializes VM context after DMCUB initialization.
This results in loss of DCN_VM_CONTEXT registers after z10.

[How]
Notify DMCUB when VM setup is complete, and have DMCUB
save init registers.

v2: squash in CONFIG_DRM_AMD_DC_DCN3_1 fix

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jake Wang 2021-08-05 14:43:41 -04:00 • committed by Alex Deucher

parent 58aa1c50e5

commit f586fea897

8 changed files with 30 additions and 0 deletions

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6

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

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3

drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c

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1

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

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12

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c

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1

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.h

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1

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c

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1

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

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5

drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h

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