diff options
Diffstat (limited to 'arch/loongarch/mm/pgtable.c')
| -rw-r--r-- | arch/loongarch/mm/pgtable.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/arch/loongarch/mm/pgtable.c b/arch/loongarch/mm/pgtable.c index 36a6dc0148ae..71d0539e2d0b 100644 --- a/arch/loongarch/mm/pgtable.c +++ b/arch/loongarch/mm/pgtable.c @@ -9,12 +9,25 @@ #include <asm/pgtable.h> #include <asm/tlbflush.h> +struct page *dmw_virt_to_page(unsigned long kaddr) +{ + return pfn_to_page(virt_to_pfn(kaddr)); +} +EXPORT_SYMBOL_GPL(dmw_virt_to_page); + +struct page *tlb_virt_to_page(unsigned long kaddr) +{ + return pfn_to_page(pte_pfn(*virt_to_kpte(kaddr))); +} +EXPORT_SYMBOL_GPL(tlb_virt_to_page); + pgd_t *pgd_alloc(struct mm_struct *mm) { - pgd_t *ret, *init; + pgd_t *init, *ret = NULL; + struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM, 0); - ret = (pgd_t *) __get_free_page(GFP_KERNEL); - if (ret) { + if (ptdesc) { + ret = (pgd_t *)ptdesc_address(ptdesc); init = pgd_offset(&init_mm, 0UL); pgd_init(ret); memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, @@ -107,7 +120,7 @@ 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); + pmd_val(pmd) = (page_to_pfn(page) << PFN_PTE_SHIFT) | pgprot_val(prot); return pmd; } |