1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_SCORE_PGALLOC_H
3 #define _ASM_SCORE_PGALLOC_H
6 #include <linux/highmem.h>
7 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
10 set_pmd(pmd, __pmd((unsigned long)pte));
13 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
16 set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
19 #define pmd_pgtable(pmd) pmd_page(pmd)
21 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
25 ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER);
27 init = pgd_offset(&init_mm, 0UL);
28 pgd_init((unsigned long)ret);
29 memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
30 (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
36 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
38 free_pages((unsigned long)pgd, PGD_ORDER);
41 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
42 unsigned long address)
46 pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_ZERO, PTE_ORDER);
51 static inline struct page *pte_alloc_one(struct mm_struct *mm,
52 unsigned long address)
56 pte = alloc_pages(GFP_KERNEL, PTE_ORDER);
60 if (!pgtable_page_ctor(pte)) {
67 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
69 free_pages((unsigned long)pte, PTE_ORDER);
72 static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
74 pgtable_page_dtor(pte);
75 __free_pages(pte, PTE_ORDER);
78 #define __pte_free_tlb(tlb, pte, buf) \
80 pgtable_page_dtor(pte); \
81 tlb_remove_page((tlb), pte); \
84 #define check_pgt_cache() do {} while (0)
86 #endif /* _ASM_SCORE_PGALLOC_H */