drm/amd/display: add dc interface for query QoS information

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[why]
Add support for retrieving Quality of Service (QoS) metrics from dc
to enable performance analysis and bottleneck identification. This provides
benchmark tools with real-time bandwidth and latency measurements from hardware
performance counters, helping diagnose display system performance issues.

[how]
- Add dc_get_qos_info() function to DC layer for unified QoS data retrieval
- Implement hardware sequencer interface with function pointers for QoS
measurements
- Integrate QoS metrics: peak/average bandwidth (Mbps) and max/average
latency (ns)

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Wenjing Liu 2025-11-10 14:37:26 -05:00 • committed by Alex Deucher

parent c02288724b

commit e4a3133c5b

3 changed files with 97 additions and 0 deletions

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24

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

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36

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

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37

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

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