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From: Matthew Stewart <Matthew.Stewart2@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: Harry Wentland <harry.wentland@amd.com>,
	Leo Li <sunpeng.li@amd.com>,
	Aurabindo Pillai <aurabindo.pillai@amd.com>,
	Roman Li <roman.li@amd.com>, Wayne Lin <wayne.lin@amd.com>,
	Tom Chung <chiahsuan.chung@amd.com>,
	"Fangzhi Zuo" <jerry.zuo@amd.com>, Ray Wu <Ray.Wu@amd.com>,
	Dan Wheeler <daniel.wheeler@amd.com>,
	Ivan Lipski <ivan.lipski@amd.com>,
	Chuanyu Tseng <Chuanyu.Tseng@amd.com>,
	Matthew Stewart <Matthew.Stewart2@amd.com>
Subject: [PATCH 1/2] drm/amdgpu: Switch order of GC and Display IP blocks
Date: Thu, 16 Jul 2026 15:07:35 -0400	[thread overview]
Message-ID: <20260716190844.368565-2-Matthew.Stewart2@amd.com> (raw)
In-Reply-To: <20260716190844.368565-1-Matthew.Stewart2@amd.com>

For DCN42B, GC hardware init should occur before display HW init.
Otherwise, the GB_ADDR_CONFIG register accessed in
amdgpu_dm_plane_add_gfx11_modifiers will have a value of 0, causing
plane modifiers to not be set correctly.

Signed-off-by: Matthew Stewart <Matthew.Stewart2@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 44e7d2e3e6df..76b6efc8768b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -3657,11 +3657,11 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 			return r;
 	}
 
-	r = amdgpu_discovery_set_display_ip_blocks(adev);
+	r = amdgpu_discovery_set_gc_ip_blocks(adev);
 	if (r)
 		return r;
 
-	r = amdgpu_discovery_set_gc_ip_blocks(adev);
+	r = amdgpu_discovery_set_display_ip_blocks(adev);
 	if (r)
 		return r;
 
-- 
2.55.0


  reply	other threads:[~2026-07-16 19:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-16 19:07 [PATCH 0/2] DCN42B driver load fixes Matthew Stewart
2026-07-16 19:07 ` Matthew Stewart [this message]
2026-07-16 19:42   ` [PATCH 1/2] drm/amdgpu: Switch order of GC and Display IP blocks Aurabindo Pillai
2026-07-16 19:07 ` [PATCH 2/2] drm/amd/display: add dcn42b specific SMU clock table read Matthew Stewart

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