TLB_LKUP_ERR
#define TLB_DUP_ERR (TLB_LKUP_ERR | 0x00000001)
#define TLB_DUP_ERR (TLB_LKUP_ERR | 0x40000000)
if (likely(!(idx & TLB_LKUP_ERR))) {
if (likely(idx & TLB_LKUP_ERR))