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drm/amd/display: Set gpuvm min page size to 4K on dcn35/36

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[WHY]
Splash screen corruption on some 8K monitors.

[HOW]
Set GPUVM min page size to 4K for DCN35/36 to use the correct DML2
calculations, avoiding the corruption path observed during splash.

Fixes: 115009d11c ("drm/amd/display: Add DCN35 DML2 support")
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2cbfb03dead5088a7bdfe2ce392a5caa3d1b3719)
Cc: stable@vger.kernel.org
This commit is contained in:
Roman Li 2026-08-14 18:03:17 -04:00 committed by Alex Deucher
parent ef0e9d1272
commit 9ce3169430
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/dml2_0/dml2_translation_helper.c
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@ -301,6 +301,7 @@ void dml2_init_socbb_params(struct dml2_context *dml2, const struct dc *in_dc, s
out->smn_latency_us = 2;
out->dispclk_dppclk_vco_speed_mhz = 3600;
out->pct_ideal_dram_bw_after_urgent_pixel_only = 65.0;
out->gpuvm_min_page_size_kbytes = 4;
break;