diff options
Diffstat (limited to 'arch')
-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 6dfe3968c379..ad46e2024f4b 100644 --- a/arch/sparc64/kernel/itlb_miss.S +++ b/arch/sparc64/kernel/itlb_miss.S | |||
@@ -9,18 +9,18 @@ | |||
9 | cmp %g4, %g6 ! Compare TAG | 9 | cmp %g4, %g6 ! Compare TAG |
10 | 10 | ||
11 | /* ITLB ** ICACHE line 2: TSB compare and TLB load */ | 11 | /* ITLB ** ICACHE line 2: TSB compare and TLB load */ |
12 | sethi %hi(PAGE_EXEC), %g4 ! Setup exec check | ||
13 | ldx [%g4 + %lo(PAGE_EXEC)], %g4 | ||
14 | bne,pn %xcc, tsb_miss_itlb ! Miss | 12 | bne,pn %xcc, tsb_miss_itlb ! Miss |
15 | mov FAULT_CODE_ITLB, %g3 | 13 | mov FAULT_CODE_ITLB, %g3 |
16 | andcc %g5, %g4, %g0 ! Executable? | 14 | andcc %g5, _PAGE_EXEC_4U, %g0 ! Executable? |
17 | be,pn %xcc, tsb_do_fault | 15 | be,pn %xcc, tsb_do_fault |
18 | nop ! Delay slot, fill me | 16 | nop ! Delay slot, fill me |
17 | stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB | ||
18 | retry ! Trap done | ||
19 | nop | 19 | nop |
20 | 20 | ||
21 | /* ITLB ** ICACHE line 3: */ | 21 | /* ITLB ** ICACHE line 3: */ |
22 | stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB | 22 | nop |
23 | retry ! Trap done | 23 | nop |
24 | nop | 24 | nop |
25 | nop | 25 | nop |
26 | nop | 26 | nop |
diff --git a/arch/sparc64/kernel/sun4v_tlb_miss.S b/arch/sparc64/kernel/sun4v_tlb_miss.S index 3dccbd67818a..3eed8db96848 100644 --- a/arch/sparc64/kernel/sun4v_tlb_miss.S +++ b/arch/sparc64/kernel/sun4v_tlb_miss.S | |||
@@ -58,11 +58,9 @@ sun4v_itlb_miss: | |||
58 | /* Load TSB tag/pte into %g2/%g3 and compare the tag. */ | 58 | /* Load TSB tag/pte into %g2/%g3 and compare the tag. */ |
59 | ldda [%g1] ASI_QUAD_LDD_PHYS_4V, %g2 | 59 | ldda [%g1] ASI_QUAD_LDD_PHYS_4V, %g2 |
60 | cmp %g2, %g6 | 60 | cmp %g2, %g6 |
61 | sethi %hi(PAGE_EXEC), %g7 | ||
62 | ldx [%g7 + %lo(PAGE_EXEC)], %g7 | ||
63 | bne,a,pn %xcc, tsb_miss_page_table_walk | 61 | bne,a,pn %xcc, tsb_miss_page_table_walk |
64 | mov FAULT_CODE_ITLB, %g3 | 62 | mov FAULT_CODE_ITLB, %g3 |
65 | andcc %g3, %g7, %g0 | 63 | andcc %g3, _PAGE_EXEC_4V, %g0 |
66 | be,a,pn %xcc, tsb_do_fault | 64 | be,a,pn %xcc, tsb_do_fault |
67 | mov FAULT_CODE_ITLB, %g3 | 65 | mov FAULT_CODE_ITLB, %g3 |
68 | 66 | ||
diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S index cc225c0563c3..563852bf3594 100644 --- a/arch/sparc64/kernel/tsb.S +++ b/arch/sparc64/kernel/tsb.S | |||
@@ -103,6 +103,15 @@ tsb_dtlb_load: | |||
103 | mov %g5, %g3 | 103 | mov %g5, %g3 |
104 | 104 | ||
105 | tsb_itlb_load: | 105 | tsb_itlb_load: |
106 | /* Executable bit must be set. */ | ||
107 | 661: andcc %g5, _PAGE_EXEC_4U, %g0 | ||
108 | .section .sun4v_1insn_patch, "ax" | ||
109 | .word 661b | ||
110 | andcc %g5, _PAGE_EXEC_4V, %g0 | ||
111 | .previous | ||
112 | |||
113 | be,pn %xcc, tsb_do_fault | ||
114 | nop | ||
106 | 115 | ||
107 | 661: stxa %g5, [%g0] ASI_ITLB_DATA_IN | 116 | 661: stxa %g5, [%g0] ASI_ITLB_DATA_IN |
108 | retry | 117 | retry |