diff options
Diffstat (limited to 'arch/x86/mm')
-rw-r--r-- | arch/x86/mm/ioremap.c | 2 | ||||
-rw-r--r-- | arch/x86/mm/pageattr.c | 3 | ||||
-rw-r--r-- | arch/x86/mm/pgtable_32.c | 23 |
3 files changed, 25 insertions, 3 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index ed795721ca8..a177d76e1c5 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -340,7 +340,7 @@ void __init early_ioremap_reset(void) for (idx = FIX_BTMAP_BEGIN; idx >= FIX_BTMAP_END; idx--) { addr = fix_to_virt(idx); pte = early_ioremap_pte(addr); - if (!*pte & _PAGE_PRESENT) { + if (*pte & _PAGE_PRESENT) { phys = *pte & PAGE_MASK; set_fixmap(idx, phys); } diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 1cc6607eacb..e297bd65e51 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -399,8 +399,7 @@ static inline int change_page_attr_set(unsigned long addr, int numpages, static inline int change_page_attr_clear(unsigned long addr, int numpages, pgprot_t mask) { - return __change_page_attr_set_clr(addr, numpages, __pgprot(0), mask); - + return change_page_attr_set_clr(addr, numpages, __pgprot(0), mask); } int set_memory_uc(unsigned long addr, int numpages) diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c index 2ae5999a795..cb3aa470249 100644 --- a/arch/x86/mm/pgtable_32.c +++ b/arch/x86/mm/pgtable_32.c @@ -376,3 +376,26 @@ void check_pgt_cache(void) { quicklist_trim(0, pgd_dtor, 25, 16); } + +void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte) +{ + paravirt_release_pt(page_to_pfn(pte)); + tlb_remove_page(tlb, pte); +} + +#ifdef CONFIG_X86_PAE + +void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) +{ + /* This is called just after the pmd has been detached from + the pgd, which requires a full tlb flush to be recognized + by the CPU. Rather than incurring multiple tlb flushes + while the address space is being pulled down, make the tlb + gathering machinery do a full flush when we're done. */ + tlb->fullmm = 1; + + paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT); + tlb_remove_page(tlb, virt_to_page(pmd)); +} + +#endif |