drm/amd/display: Optimizations for DML math

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[why]
Conditionals in the DML basic math functions significantly impact mode
enumeration.

[how]
Remove conditionals for floor/ceil operations which are used frequently
in DML and add an assertion for invalid callers using zero granuality.
Fix existing callers that rely on 0 granularity.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Aric Cyr 2022-08-20 17:20:30 -04:00 • committed by Alex Deucher

parent 6da15a236c

commit 17529ea2ac

9 changed files with 53 additions and 61 deletions

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22

drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_auto.c

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16

drivers/gpu/drm/amd/display/dc/dml/calcs/dcn_calc_math.c

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10

drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c

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6

drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c

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8

drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c

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6

drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c

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6

drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c

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31

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c

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9

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

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