98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _MOTOROLA_PGALLOC_H
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#define _MOTOROLA_PGALLOC_H
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#include <asm/tlb.h>
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#include <asm/tlbflush.h>
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extern void mmu_page_ctor(void *page);
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extern void mmu_page_dtor(void *page);
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enum m68k_table_types {
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TABLE_PGD = 0,
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TABLE_PMD = 0, /* same size as PGD */
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TABLE_PTE = 1,
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};
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extern void init_pointer_table(void *table, int type);
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extern void *get_pointer_table(int type);
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extern int free_pointer_table(void *table, int type);
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/*
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* Allocate and free page tables. The xxx_kernel() versions are
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* used to allocate a kernel page table - this turns on ASN bits
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* if any.
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*/
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static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
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{
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return get_pointer_table(TABLE_PTE);
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}
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static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
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{
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free_pointer_table(pte, TABLE_PTE);
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}
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static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
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{
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return get_pointer_table(TABLE_PTE);
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}
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static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
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{
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free_pointer_table(pgtable, TABLE_PTE);
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}
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static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
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unsigned long address)
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{
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free_pointer_table(pgtable, TABLE_PTE);
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}
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static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
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{
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return get_pointer_table(TABLE_PMD);
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}
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static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd)
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{
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return free_pointer_table(pmd, TABLE_PMD);
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}
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static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
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unsigned long address)
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{
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return free_pointer_table(pmd, TABLE_PMD);
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}
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static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
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{
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free_pointer_table(pgd, TABLE_PGD);
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}
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static inline pgd_t *pgd_alloc(struct mm_struct *mm)
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{
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return get_pointer_table(TABLE_PGD);
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}
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static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
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{
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pmd_set(pmd, pte);
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}
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static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
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{
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pmd_set(pmd, page);
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}
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static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
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{
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pud_set(pud, pmd);
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}
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#endif /* _MOTOROLA_PGALLOC_H */
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