diff options
Diffstat (limited to 'arch/cris')
-rw-r--r-- | arch/cris/arch-v10/mm/fault.c | 26 | ||||
-rw-r--r-- | arch/cris/arch-v10/mm/init.c | 2 | ||||
-rw-r--r-- | arch/cris/arch-v10/mm/tlb.c | 49 |
3 files changed, 4 insertions, 73 deletions
diff --git a/arch/cris/arch-v10/mm/fault.c b/arch/cris/arch-v10/mm/fault.c index 6805cdb25a53..fe2615022b97 100644 --- a/arch/cris/arch-v10/mm/fault.c +++ b/arch/cris/arch-v10/mm/fault.c | |||
@@ -14,6 +14,7 @@ | |||
14 | #include <asm/uaccess.h> | 14 | #include <asm/uaccess.h> |
15 | #include <asm/pgtable.h> | 15 | #include <asm/pgtable.h> |
16 | #include <asm/arch/svinto.h> | 16 | #include <asm/arch/svinto.h> |
17 | #include <asm/mmu_context.h> | ||
17 | 18 | ||
18 | /* debug of low-level TLB reload */ | 19 | /* debug of low-level TLB reload */ |
19 | #undef DEBUG | 20 | #undef DEBUG |
@@ -24,8 +25,6 @@ | |||
24 | #define D(x) | 25 | #define D(x) |
25 | #endif | 26 | #endif |
26 | 27 | ||
27 | extern volatile pgd_t *current_pgd; | ||
28 | |||
29 | extern const struct exception_table_entry | 28 | extern const struct exception_table_entry |
30 | *search_exception_tables(unsigned long addr); | 29 | *search_exception_tables(unsigned long addr); |
31 | 30 | ||
@@ -46,7 +45,7 @@ handle_mmu_bus_fault(struct pt_regs *regs) | |||
46 | int page_id; | 45 | int page_id; |
47 | int acc, inv; | 46 | int acc, inv; |
48 | #endif | 47 | #endif |
49 | pgd_t* pgd = (pgd_t*)current_pgd; | 48 | pgd_t* pgd = (pgd_t*)per_cpu(current_pgd, smp_processor_id()); |
50 | pmd_t *pmd; | 49 | pmd_t *pmd; |
51 | pte_t pte; | 50 | pte_t pte; |
52 | int miss, we, writeac; | 51 | int miss, we, writeac; |
@@ -94,24 +93,3 @@ handle_mmu_bus_fault(struct pt_regs *regs) | |||
94 | *R_TLB_LO = pte_val(pte); | 93 | *R_TLB_LO = pte_val(pte); |
95 | local_irq_restore(flags); | 94 | local_irq_restore(flags); |
96 | } | 95 | } |
97 | |||
98 | /* Called from arch/cris/mm/fault.c to find fixup code. */ | ||
99 | int | ||
100 | find_fixup_code(struct pt_regs *regs) | ||
101 | { | ||
102 | const struct exception_table_entry *fixup; | ||
103 | |||
104 | if ((fixup = search_exception_tables(regs->irp)) != 0) { | ||
105 | /* Adjust the instruction pointer in the stackframe. */ | ||
106 | regs->irp = fixup->fixup; | ||
107 | |||
108 | /* | ||
109 | * Don't return by restoring the CPU state, so switch | ||
110 | * frame-type. | ||
111 | */ | ||
112 | regs->frametype = CRIS_FRAME_NORMAL; | ||
113 | return 1; | ||
114 | } | ||
115 | |||
116 | return 0; | ||
117 | } | ||
diff --git a/arch/cris/arch-v10/mm/init.c b/arch/cris/arch-v10/mm/init.c index a9f975a9cfb5..ff3481e76dd4 100644 --- a/arch/cris/arch-v10/mm/init.c +++ b/arch/cris/arch-v10/mm/init.c | |||
@@ -42,7 +42,7 @@ paging_init(void) | |||
42 | * switch_mm) | 42 | * switch_mm) |
43 | */ | 43 | */ |
44 | 44 | ||
45 | current_pgd = init_mm.pgd; | 45 | per_cpu(current_pgd, smp_processor_id()) = init_mm.pgd; |
46 | 46 | ||
47 | /* initialise the TLB (tlb.c) */ | 47 | /* initialise the TLB (tlb.c) */ |
48 | 48 | ||
diff --git a/arch/cris/arch-v10/mm/tlb.c b/arch/cris/arch-v10/mm/tlb.c index 9d06125ff5a2..70a5523eff78 100644 --- a/arch/cris/arch-v10/mm/tlb.c +++ b/arch/cris/arch-v10/mm/tlb.c | |||
@@ -139,53 +139,6 @@ flush_tlb_page(struct vm_area_struct *vma, | |||
139 | local_irq_restore(flags); | 139 | local_irq_restore(flags); |
140 | } | 140 | } |
141 | 141 | ||
142 | /* invalidate a page range */ | ||
143 | |||
144 | void | ||
145 | flush_tlb_range(struct vm_area_struct *vma, | ||
146 | unsigned long start, | ||
147 | unsigned long end) | ||
148 | { | ||
149 | struct mm_struct *mm = vma->vm_mm; | ||
150 | int page_id = mm->context.page_id; | ||
151 | int i; | ||
152 | unsigned long flags; | ||
153 | |||
154 | D(printk("tlb: flush range %p<->%p in context %d (%p)\n", | ||
155 | start, end, page_id, mm)); | ||
156 | |||
157 | if(page_id == NO_CONTEXT) | ||
158 | return; | ||
159 | |||
160 | start &= PAGE_MASK; /* probably not necessary */ | ||
161 | end &= PAGE_MASK; /* dito */ | ||
162 | |||
163 | /* invalidate those TLB entries that match both the mm context | ||
164 | * and the virtual address range | ||
165 | */ | ||
166 | |||
167 | local_save_flags(flags); | ||
168 | local_irq_disable(); | ||
169 | for(i = 0; i < NUM_TLB_ENTRIES; i++) { | ||
170 | unsigned long tlb_hi, vpn; | ||
171 | *R_TLB_SELECT = IO_FIELD(R_TLB_SELECT, index, i); | ||
172 | tlb_hi = *R_TLB_HI; | ||
173 | vpn = tlb_hi & PAGE_MASK; | ||
174 | if (IO_EXTRACT(R_TLB_HI, page_id, tlb_hi) == page_id && | ||
175 | vpn >= start && vpn < end) { | ||
176 | *R_TLB_HI = ( IO_FIELD(R_TLB_HI, page_id, INVALID_PAGEID ) | | ||
177 | IO_FIELD(R_TLB_HI, vpn, i & 0xf ) ); | ||
178 | |||
179 | *R_TLB_LO = ( IO_STATE(R_TLB_LO, global,no ) | | ||
180 | IO_STATE(R_TLB_LO, valid, no ) | | ||
181 | IO_STATE(R_TLB_LO, kernel,no ) | | ||
182 | IO_STATE(R_TLB_LO, we, no ) | | ||
183 | IO_FIELD(R_TLB_LO, pfn, 0 ) ); | ||
184 | } | ||
185 | } | ||
186 | local_irq_restore(flags); | ||
187 | } | ||
188 | |||
189 | /* dump the entire TLB for debug purposes */ | 142 | /* dump the entire TLB for debug purposes */ |
190 | 143 | ||
191 | #if 0 | 144 | #if 0 |
@@ -237,7 +190,7 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next, | |||
237 | * the pgd. | 190 | * the pgd. |
238 | */ | 191 | */ |
239 | 192 | ||
240 | current_pgd = next->pgd; | 193 | per_cpu(current_pgd, smp_processor_id()) = next->pgd; |
241 | 194 | ||
242 | /* switch context in the MMU */ | 195 | /* switch context in the MMU */ |
243 | 196 | ||