| /* ITLB ** ICACHE line 1: Context 0 check and TSB load */ | |
| ldxa [%g0] ASI_IMMU_TSB_8KB_PTR, %g1 ! Get TSB 8K pointer | |
| ldxa [%g0] ASI_IMMU, %g6 ! Get TAG TARGET | |
| srlx %g6, 48, %g5 ! Get context | |
| sllx %g6, 22, %g6 ! Zero out context | |
| brz,pn %g5, kvmap_itlb ! Context 0 processing | |
| srlx %g6, 22, %g6 ! Delay slot | |
| TSB_LOAD_QUAD(%g1, %g4) ! Load TSB entry | |
| cmp %g4, %g6 ! Compare TAG | |
| /* ITLB ** ICACHE line 2: TSB compare and TLB load */ | |
| bne,pn %xcc, tsb_miss_itlb ! Miss | |
| mov FAULT_CODE_ITLB, %g3 | |
| sethi %hi(_PAGE_EXEC_4U), %g4 | |
| andcc %g5, %g4, %g0 ! Executable? | |
| be,pn %xcc, tsb_do_fault | |
| nop ! Delay slot, fill me | |
| stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB | |
| retry ! Trap done | |
| /* ITLB ** ICACHE line 3: */ | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| /* ITLB ** ICACHE line 4: */ | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop | |
| nop |