LIMA_VM_PD_SHIFT
#define LIMA_VM_PB_SHIFT (LIMA_VM_PD_SHIFT + LIMA_VM_NUM_PT_PER_BT_SHIFT)
#define LIMA_VM_PT_MASK ((1 << LIMA_VM_PD_SHIFT) - 1)
#define LIMA_PDE(va) (va >> LIMA_VM_PD_SHIFT)