amdgpu_ttm_evict_resources
*val = amdgpu_ttm_evict_resources(adev, TTM_PL_VRAM);
*val = amdgpu_ttm_evict_resources(adev, TTM_PL_TT);
ret = amdgpu_ttm_evict_resources(adev, TTM_PL_VRAM);
int amdgpu_ttm_evict_resources(struct amdgpu_device *adev, int mem_type);