diff options
| -rw-r--r-- | arch/sparc64/kernel/itlb_miss.S | 10 | ||||
| -rw-r--r-- | arch/sparc64/kernel/sun4v_tlb_miss.S | 4 | ||||
| -rw-r--r-- | arch/sparc64/kernel/tsb.S | 9 |
3 files changed, 15 insertions, 8 deletions
diff --git a/arch/sparc64/kernel/itlb_miss.S b/arch/sparc64/kernel/itlb_miss.S index 6dfe3968c37..ad46e2024f4 100644 --- a/arch/sparc64/kernel/itlb_miss.S +++ b/arch/sparc64/kernel/itlb_miss.S @@ -9,18 +9,18 @@ cmp %g4, %g6 ! Compare TAG /* ITLB ** ICACHE line 2: TSB compare and TLB load */ - sethi %hi(PAGE_EXEC), %g4 ! Setup exec check - ldx [%g4 + %lo(PAGE_EXEC)], %g4 bne,pn %xcc, tsb_miss_itlb ! Miss mov FAULT_CODE_ITLB, %g3 - andcc %g5, %g4, %g0 ! Executable? + andcc %g5, _PAGE_EXEC_4U, %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 nop /* ITLB ** ICACHE line 3: */ - stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB - retry ! Trap done + nop + nop nop nop nop diff --git a/arch/sparc64/kernel/sun4v_tlb_miss.S b/arch/sparc64/kernel/sun4v_tlb_miss.S index 3dccbd67818..3eed8db9684 100644 --- a/arch/sparc64/kernel/sun4v_tlb_miss.S +++ b/arch/sparc64/kernel/sun4v_tlb_miss.S @@ -58,11 +58,9 @@ sun4v_itlb_miss: /* Load TSB tag/pte into %g2/%g3 and compare the tag. */ ldda [%g1] ASI_QUAD_LDD_PHYS_4V, %g2 cmp %g2, %g6 - sethi %hi(PAGE_EXEC), %g7 - ldx [%g7 + %lo(PAGE_EXEC)], %g7 bne,a,pn %xcc, tsb_miss_page_table_walk mov FAULT_CODE_ITLB, %g3 - andcc %g3, %g7, %g0 + andcc %g3, _PAGE_EXEC_4V, %g0 be,a,pn %xcc, tsb_do_fault mov FAULT_CODE_ITLB, %g3 diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S index cc225c0563c..563852bf359 100644 --- a/arch/sparc64/kernel/tsb.S +++ b/arch/sparc64/kernel/tsb.S @@ -103,6 +103,15 @@ tsb_dtlb_load: mov %g5, %g3 tsb_itlb_load: + /* Executable bit must be set. */ +661: andcc %g5, _PAGE_EXEC_4U, %g0 + .section .sun4v_1insn_patch, "ax" + .word 661b + andcc %g5, _PAGE_EXEC_4V, %g0 + .previous + + be,pn %xcc, tsb_do_fault + nop 661: stxa %g5, [%g0] ASI_ITLB_DATA_IN retry |