[PATCH] drm/amdgpu: report DC not supported if virtual display is enabled

[Chen, Guchun]

[AMD Public Use]

Why not merging it to the same line of SRIOV check?

if (amdgpu_sriov_vf(adev) || adev->enable_virtual_display )
	return false;

Regards,
Guchun

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
Sent: Tuesday, August 25, 2020 9:45 PM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: [PATCH] drm/amdgpu: report DC not supported if virtual display is enabled

virtual display is non-atomic so report false to avoid checking atomic state and other atomic things at runtime.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 5a948edcc93c..19f1e8449986 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2864,6 +2864,9 @@ bool amdgpu_device_has_dc_support(struct amdgpu_device *adev)
 	if (amdgpu_sriov_vf(adev))
 		return false;
 
+	if (adev->enable_virtual_display)
+		return false;
+
 	return amdgpu_device_asic_has_dc_support(adev->asic_type);
 }
 
--
2.25.4

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