drm/amd/display: Log DMCUB trace buffer events

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[Why]
We want to log DMCUB trace buffer events as Linux kernel traces.

[How]
Register an IRQ handler for DMCUB outbox0 interrupt in amdgpu_dm,
and log the messages in the DMCUB tracebuffer to a new DMCUB
TRACE_EVENT as soon as we receive the outbox0 IRQ from DMCUB FW.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Leo (Hanghong) Ma 2021-02-19 16:22:58 -05:00 • committed by Alex Deucher

parent 234cc26f7d

commit a08f16cfe8

7 changed files with 160 additions and 4 deletions

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48

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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9

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

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12

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

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20

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c

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21

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h

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29

drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c

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25

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

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