drm/amd/display: Read all the trace entry if it is not empty

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[Why]
If interval of two interrupt from dmub outbox0 is too short,
some event might be skipped

[How]
Compare read pointer and write pointer until all the event
entry is processed

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Yongqiang Sun 2021-02-23 15:16:44 -05:00 • committed by Alex Deucher

parent 0c66824be8

commit 3c934f454d

1 changed files with 14 additions and 5 deletions

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drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c

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