amdgpu_dpm_gfx_state_change
amdgpu_dpm_gfx_state_change(adev, sGpuChangeState_D3Entry);
amdgpu_dpm_gfx_state_change(adev, sGpuChangeState_D0Entry);
void amdgpu_dpm_gfx_state_change(struct amdgpu_device *adev,