nvkm_vmm_desc_type
TRA(it, "PDE unmap %s", nvkm_vmm_desc_type(&desc[it->lvl - 1]));
TRA(it, "PDE free %s", nvkm_vmm_desc_type(&desc[it->lvl - 1]));
TRA(it, "%s empty", nvkm_vmm_desc_type(desc));
TRA(it, "PDE write %s", nvkm_vmm_desc_type(desc));