1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* ITLB ** ICACHE line 1: Context 0 check and TSB load */
3 ldxa [%g0] ASI_IMMU_TSB_8KB_PTR, %g1 ! Get TSB 8K pointer
4 ldxa [%g0] ASI_IMMU, %g6 ! Get TAG TARGET
5 srlx %g6, 48, %g5 ! Get context
6 sllx %g6, 22, %g6 ! Zero out context
7 brz,pn %g5, kvmap_itlb ! Context 0 processing
8 srlx %g6, 22, %g6 ! Delay slot
9 TSB_LOAD_QUAD(%g1, %g4) ! Load TSB entry
10 cmp %g4, %g6 ! Compare TAG
12 /* ITLB ** ICACHE line 2: TSB compare and TLB load */
13 bne,pn %xcc, tsb_miss_itlb ! Miss
14 mov FAULT_CODE_ITLB, %g3
15 sethi %hi(_PAGE_EXEC_4U), %g4
16 andcc %g5, %g4, %g0 ! Executable?
17 be,pn %xcc, tsb_do_fault
18 nop ! Delay slot, fill me
19 stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB
22 /* ITLB ** ICACHE line 3: */
32 /* ITLB ** ICACHE line 4: */