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drm/amd/display: Pass HostVM enable flag into DCN3.1 DML

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[WHY]
Calculations differ with HostVM enabled/disabled, causing underflow in
configs with high refresh displays + scaling due to lower available BW

[HOW]
Check riommu_active in order to pass correct HostVM enablement to DML

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michael Strauss 2022-02-16 17:01:18 -05:00 committed by Alex Deucher
parent 3192f1d9b6
commit 863fa85e6a
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
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@ -1810,6 +1810,7 @@ int dcn31_populate_dml_pipes_from_context(
pipes[pipe_cnt].pipe.src.immediate_flip = true;
pipes[pipe_cnt].pipe.src.unbounded_req_mode = false;
pipes[pipe_cnt].pipe.src.hostvm = dc->res_pool->hubbub->riommu_active;
pipes[pipe_cnt].pipe.src.gpuvm = true;
pipes[pipe_cnt].pipe.src.dcc_fraction_of_zs_req_luma = 0;
pipes[pipe_cnt].pipe.src.dcc_fraction_of_zs_req_chroma = 0;