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

[Deucher, Alexander]

[AMD Public Use]

I can do that.

Alex

________________________________
From: Chen, Guchun <Guchun.Chen at amd.com>
Sent: Tuesday, August 25, 2020 10:13 AM
To: Alex Deucher <alexdeucher at gmail.com>; amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: RE: [PATCH] drm/amdgpu: report DC not supported if virtual display is enabled

[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

_______________________________________________
amd-gfx mailing list
amd-gfx at lists.freedesktop.org
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=02%7C01%7Cguchun.chen%40amd.com%7C6679ea962a8a4b5715cf08d848fd2469%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637339599368934081&sdata=WMMrhLJ2qXKEr6gHMn0ydF2%2B3jxzUEZ3azRsjkgOXZI%3D&reserved=0
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20200825/aa670a26/attachment.htm>