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