diff options
Diffstat (limited to 'arch/mips/mm/pgtable-64.c')
| -rw-r--r-- | arch/mips/mm/pgtable-64.c | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c index cda4e300eb0..ee331bbd8f8 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) { @@ -26,17 +27,17 @@ void pgd_init(unsigned long page) p = (unsigned long *) page; end = p + PTRS_PER_PGD; - while (p < end) { + do { p[0] = entry; p[1] = entry; p[2] = entry; p[3] = entry; p[4] = entry; - p[5] = entry; - p[6] = entry; - p[7] = entry; p += 8; - } + p[-3] = entry; + p[-2] = entry; + p[-1] = entry; + } while (p != end); } #ifndef __PAGETABLE_PMD_FOLDED @@ -47,20 +48,50 @@ void pmd_init(unsigned long addr, unsigned long pagetable) p = (unsigned long *) addr; end = p + PTRS_PER_PMD; - while (p < end) { + do { p[0] = pagetable; p[1] = pagetable; p[2] = pagetable; p[3] = pagetable; p[4] = pagetable; - p[5] = pagetable; - p[6] = pagetable; - p[7] = pagetable; p += 8; + p[-3] = pagetable; + p[-2] = pagetable; + p[-1] = pagetable; + } while (p != end); +} +#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; |