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1879688e5c
get_pointer_table() and free_pointer_table() already special-case TABLE_PTE to call pagetable_pte_[cd]tor. Let's do the same at PMD level to improve accounting further. TABLE_PGD and TABLE_PMD are currently defined to the same value, so we first need to separate them. That also implies separating ptable_list for PMD/PGD levels. Link: https://lkml.kernel.org/r/20250103184415.2744423-4-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mike Rapoport (Microsoft) <rppt@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
/* 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,
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TABLE_PMD,
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TABLE_PTE,
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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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