1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ASM_SH_PGALLOC_H 3 #define __ASM_SH_PGALLOC_H 4 5 #include <asm/page.h> 6 #include <asm-generic/pgalloc.h> 7 8 extern pgd_t *pgd_alloc(struct mm_struct *); 9 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); 10 11 #if PAGETABLE_LEVELS > 2 12 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd); 13 extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address); 14 extern void pmd_free(struct mm_struct *mm, pmd_t *pmd); 15 #endif 16 17 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, 18 pte_t *pte) 19 { 20 set_pmd(pmd, __pmd((unsigned long)pte)); 21 } 22 23 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, 24 pgtable_t pte) 25 { 26 set_pmd(pmd, __pmd((unsigned long)page_address(pte))); 27 } 28 #define pmd_pgtable(pmd) pmd_page(pmd) 29 30 #define __pte_free_tlb(tlb,pte,addr) \ 31 do { \ 32 pgtable_pte_page_dtor(pte); \ 33 tlb_remove_page((tlb), (pte)); \ 34 } while (0) 35 36 #if CONFIG_PGTABLE_LEVELS > 2 37 #define __pmd_free_tlb(tlb, pmdp, addr) \ 38 do { \ 39 struct page *page = virt_to_page(pmdp); \ 40 pgtable_pmd_page_dtor(page); \ 41 tlb_remove_page((tlb), page); \ 42 } while (0); 43 #endif 44 45 #endif /* __ASM_SH_PGALLOC_H */ 46