[PATCH] drm/amdgpu: Disable DPM in virtualization

[Trigger Huang]

This patch is used for virtualization support. In virtualization,
only SMU manager is needed, DPM should be disabled. This is a
use case for commit 2f9346b6f984
("drm/amdgpu/powerplay: pp module only enable smu when dpm disabled.")

Signed-off-by: Trigger Huang <trigger.huang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/vi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 9528072..d1c0abc 100755
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1147,6 +1147,11 @@ static int vi_common_early_init(void *handle)
 	if (adev->asic_funcs->detect_hw_virtualization)
 		amdgpu_asic_detect_hw_virtualization(adev);
 
+	if (amdgpu_sriov_vf(adev)) {
+		/* For virtualization, we need to disable DPM */
+		amdgpu_dpm = 0;
+	}
+
 	if (amdgpu_smc_load_fw && smc_enabled)
 		adev->firmware.smu_load = true;
 
-- 
2.7.4