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drm/amd/display: Atom Integrated System Info v2_2 for DCN35

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[ Upstream commit 9a35d205f4 ]

New request from KMD/VBIOS in order to support new UMA carveout
model. This fixes a null dereference from accessing
Ctx->dc_bios->integrated_info while it was NULL.

DAL parses through the BIOS and extracts the necessary
integrated_info but was missing a case for the new BIOS
version 2.3.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Gabe Teeger 2024-04-09 10:38:58 -04:00 committed by Greg Kroah-Hartman
parent 1a51e24404
commit 02f5300f68
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
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@ -2962,6 +2962,7 @@ static enum bp_result construct_integrated_info(
result = get_integrated_info_v2_1(bp, info);
break;
case 2:
case 3:
result = get_integrated_info_v2_2(bp, info);
break;
default: