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Diffstat (limited to 'arch/mips/mm/tlb-r4k.c')
-rw-r--r--arch/mips/mm/tlb-r4k.c43
1 files changed, 32 insertions, 11 deletions
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 892be426787c..f60fe513eb60 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/mm.h>
+#include <linux/hugetlb.h>
#include <asm/cpu.h>
#include <asm/bootinfo.h>
@@ -295,21 +296,41 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
pudp = pud_offset(pgdp, address);
pmdp = pmd_offset(pudp, address);
idx = read_c0_index();
- ptep = pte_offset_map(pmdp, address);
+#ifdef CONFIG_HUGETLB_PAGE
+ /* this could be a huge page */
+ if (pmd_huge(*pmdp)) {
+ unsigned long lo;
+ write_c0_pagemask(PM_HUGE_MASK);
+ ptep = (pte_t *)pmdp;
+ lo = pte_val(*ptep) >> 6;
+ write_c0_entrylo0(lo);
+ write_c0_entrylo1(lo + (HPAGE_SIZE >> 7));
+
+ mtc0_tlbw_hazard();
+ if (idx < 0)
+ tlb_write_random();
+ else
+ tlb_write_indexed();
+ write_c0_pagemask(PM_DEFAULT_MASK);
+ } else
+#endif
+ {
+ ptep = pte_offset_map(pmdp, address);
#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
- write_c0_entrylo0(ptep->pte_high);
- ptep++;
- write_c0_entrylo1(ptep->pte_high);
+ write_c0_entrylo0(ptep->pte_high);
+ ptep++;
+ write_c0_entrylo1(ptep->pte_high);
#else
- write_c0_entrylo0(pte_val(*ptep++) >> 6);
- write_c0_entrylo1(pte_val(*ptep) >> 6);
+ write_c0_entrylo0(pte_val(*ptep++) >> 6);
+ write_c0_entrylo1(pte_val(*ptep) >> 6);
#endif
- mtc0_tlbw_hazard();
- if (idx < 0)
- tlb_write_random();
- else
- tlb_write_indexed();
+ mtc0_tlbw_hazard();
+ if (idx < 0)
+ tlb_write_random();
+ else
+ tlb_write_indexed();
+ }
tlbw_use_hazard();
FLUSH_ITLB_VM(vma);
EXIT_CRITICAL(flags);