drm/amd/display: Add function and debugfs to dump DCC_EN bit

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[why]
Currently to view the DCC_EN bit the entire DTN log
must be dumped. A compact method to view the DCC_EN
bit is desirable.

[how]
Introduce new debugfs interface that only dumps the
DCC_EN bit.

Example usage:
cat /sys/kernel/debug/dri/0/amdgpu_dm_dcc_en

Signed-off-by: Victor Lu <victorchengchi.lu@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Victor Lu 2020-07-22 16:16:48 -04:00 • committed by Alex Deucher

parent ad0d8ebcb8

commit 712343cd21

9 changed files with 96 additions and 5 deletions

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66

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

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16

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

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4

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

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3

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c

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1

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c

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3

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c

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3

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c

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3

drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c

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2

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

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