mtsrin
mtsrin(USER_SR << ADDR_SR_SHFT, td->td_pcb->pcb_cpu.aim.usr_vsid);
mtsrin(i << ADDR_SR_SHFT, kernel_pmap->pm_sr[i]);
mtsrin(USER_SR << ADDR_SR_SHFT, td->td_pcb->pcb_cpu.aim.usr_vsid);
mtsrin(i << ADDR_SR_SHFT, kernel_pmap->pm_sr[i]);