From: Xiangliang Yu <Xiangliang.Yu@amd.com>
Date: Tue, 10 Jan 2017 17:34:52 +0800
Subject: drm/amdgpu/virt: disable dc
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Git-commit: 2555039d129e4e637cbc6a1048d1005dd9c78b7a
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Virtualization don't need the dc, disable it.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2079,6 +2079,9 @@ bool amdgpu_device_asic_has_dc_support(e
  */
 bool amdgpu_device_has_dc_support(struct amdgpu_device *adev)
 {
+	if (amdgpu_sriov_vf(adev))
+		return false;
+
 	return amdgpu_device_asic_has_dc_support(adev->asic_type);
 }