1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _MOTOROLA_PGALLOC_H
3 #define _MOTOROLA_PGALLOC_H
6 #include <asm/tlbflush.h>
8 extern pmd_t *get_pointer_table(void);
9 extern int free_pointer_table(pmd_t *);
11 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
15 pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
17 __flush_page_to_ram(pte);
18 flush_tlb_kernel_page(pte);
25 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
28 free_page((unsigned long) pte);
31 static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
36 page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
39 if (!pgtable_page_ctor(page)) {
45 __flush_page_to_ram(pte);
46 flush_tlb_kernel_page(pte);
52 static inline void pte_free(struct mm_struct *mm, pgtable_t page)
54 pgtable_page_dtor(page);
55 cache_page(kmap(page));
60 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
61 unsigned long address)
63 pgtable_page_dtor(page);
64 cache_page(kmap(page));
70 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
72 return get_pointer_table();
75 static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd)
77 return free_pointer_table(pmd);
80 static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
81 unsigned long address)
83 return free_pointer_table(pmd);
87 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
89 pmd_free(mm, (pmd_t *)pgd);
92 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
94 return (pgd_t *)get_pointer_table();
98 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
103 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
105 pmd_set(pmd, page_address(page));
107 #define pmd_pgtable(pmd) pmd_page(pmd)
109 static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
114 #endif /* _MOTOROLA_PGALLOC_H */