diff mbox series

[1/1,SRU,Noble] drm/amd/display: Atom Integrated System Info v2_2 for DCN35

Message ID 20240620084042.515243-2-vicamo.yang@canonical.com
State New
Headers show
Series Fix amdgpu hangs on DCN 3.5 at bootup | expand

Commit Message

You-Sheng Yang June 20, 2024, 8:40 a.m. UTC 
From: Gabe Teeger <gabe.teeger@amd.com>

BugLink: https://bugs.launchpad.net/bugs/2066233

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>
(cherry picked from commit 9a35d205f466501dcfe5625ca313d944d0ac2d60)
Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com>
---
 drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index 05f392501c0ae..ab31643b10969 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -2948,6 +2948,7 @@  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: