diff options
Diffstat (limited to 'arch/mips/mm/pgtable-64.c')
| -rw-r--r-- | arch/mips/mm/pgtable-64.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c index 25407794edb..e8adc0069d6 100644 --- a/arch/mips/mm/pgtable-64.c +++ b/arch/mips/mm/pgtable-64.c @@ -11,6 +11,7 @@ #include <asm/fixmap.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> +#include <asm/tlbflush.h> void pgd_init(unsigned long page) { @@ -23,7 +24,7 @@ void pgd_init(unsigned long page) entry = (unsigned long)invalid_pmd_table; #endif - p = (unsigned long *) page; + p = (unsigned long *) page; end = p + PTRS_PER_PGD; do { @@ -44,7 +45,7 @@ void pmd_init(unsigned long addr, unsigned long pagetable) { unsigned long *p, *end; - p = (unsigned long *) addr; + p = (unsigned long *) addr; end = p + PTRS_PER_PMD; do { @@ -61,6 +62,36 @@ void pmd_init(unsigned long addr, unsigned long pagetable) } #endif +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + +void pmdp_splitting_flush(struct vm_area_struct *vma, + unsigned long address, + pmd_t *pmdp) +{ + if (!pmd_trans_splitting(*pmdp)) { + pmd_t pmd = pmd_mksplitting(*pmdp); + set_pmd_at(vma->vm_mm, address, pmdp, pmd); + } +} + +#endif + +pmd_t mk_pmd(struct page *page, pgprot_t prot) +{ + pmd_t pmd; + + pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot); + + return pmd; +} + +void set_pmd_at(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp, pmd_t pmd) +{ + *pmdp = pmd; + flush_tlb_all(); +} + void __init pagetable_init(void) { unsigned long vaddr; |