drm/amd/display: Use adjusted DCN301 watermarks

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[why]
If DCN30 watermark calc is used for DCN301, the calculated values are
wrong due to the data structure mismatch between DCN30 and DCN301.
However, using the original DCN301 watermark values causes underflow.

[how]
- Add DCN21-style watermark calculations
- Adjust DCN301 watermark values to remove the underflow

Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nikola Cornij 2021-09-07 22:09:01 -04:00 • committed by Alex Deucher

parent f777bb9a96

commit 808643ea56

2 changed files with 97 additions and 3 deletions

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4

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c

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96

drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c

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