[PATCH 086/100] drm/amdgpu/dce_virtual: bypass DPM for vf

Alex Deucher alexdeucher at gmail.com
Mon Mar 20 20:30:21 UTC 2017

From: Xiangliang Yu <Xiangliang.Yu at amd.com>

If enable DPM for VF, always get lot of warn_slow_patch_null in
dmesg and vf doesn't support DPM.

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

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
index 5ee139c..8bb9cfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
@@ -204,6 +204,9 @@ static void dce_virtual_crtc_dpms(struct drm_crtc *crtc, int mode)
 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 	unsigned type;
+	if (amdgpu_sriov_vf(adev))
+		return;
 	switch (mode) {
 		amdgpu_crtc->enabled = true;

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