amdgpu_get_vblank_counter_kms
u32 amdgpu_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe);
amdgpu_get_vblank_counter_kms(adev->ddev, amdgpu_crtc->crtc_id)) > 0) {
amdgpu_get_vblank_counter_kms(dev, work->crtc_id);
.get_vblank_counter = amdgpu_get_vblank_counter_kms,
amdgpu_get_vblank_counter_kms(crtc->dev, acrtc->crtc_id);
amdgpu_get_vblank_counter_kms(adev->ddev, acrtc->crtc_id)) > 0)) {