From 1efdd37cc015ed1cade8c1c12227ad25ebb17c77 Mon Sep 17 00:00:00 2001
From: Hamza Mahfooz <hamza.mahfooz@amd.com>
Date: Thu, 26 Oct 2023 11:50:45 -0400
Subject: [PATCH] drm/amd/display: fix S/G display enablement
An assignment statement was reversed during a refactor which effectively
disabled S/G display outright. Since, we use
adev->mode_info.gpu_vm_support to indicate to the rest of the driver
that S/G display should be enabled and currently it is always set to
false. So, to fix this set adev->mode_info.gpu_vm_support's value to
that of init_data.flags.gpu_vm_support (and not vice versa).
Fixes: 098c13079c6f ("drm/amd/display: enable S/G display for for recent APUs by default")
Reported-by: Mark Broadworth <mark.broadworth@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index f08202abab4e9..6f99f6754c119 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1642,7 +1642,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
init_data.flags.gpu_vm_support = (amdgpu_sg_display != 0) && (adev->flags & AMD_IS_APU);
}
- init_data.flags.gpu_vm_support = adev->mode_info.gpu_vm_support;
+ adev->mode_info.gpu_vm_support = init_data.flags.gpu_vm_support;
if (amdgpu_dc_feature_mask & DC_FBC_MASK)
init_data.flags.fbc_support = true;
--
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