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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _SPARC64_PGALLOC_H #define _SPARC64_PGALLOC_H #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> #include <linux/slab.h> #include <asm/spitfire.h> #include <asm/cpudata.h> #include <asm/cacheflush.h> #include <asm/page.h> /* Page table allocation/freeing. */ extern struct kmem_cache *pgtable_cache; static inline void __p4d_populate(p4d_t *p4d, pud_t *pud) { p4d_set(p4d, pud); } #define p4d_populate(MM, P4D, PUD) __p4d_populate(P4D, PUD) static inline pgd_t *pgd_alloc(struct mm_struct *mm) { return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); } static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { kmem_cache_free(pgtable_cache, pgd); } static inline void __pud_populate(pud_t *pud, pmd_t *pmd) { pud_set(pud, pmd); } #define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) { return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); } static inline void pud_free(struct mm_struct *mm, pud_t *pud) { kmem_cache_free(pgtable_cache, pud); } static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) { return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); } static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { kmem_cache_free(pgtable_cache, pmd); } pte_t *pte_alloc_one_kernel(struct mm_struct *mm); pgtable_t pte_alloc_one(struct mm_struct *mm); void pte_free_kernel(struct mm_struct *mm, pte_t *pte); void pte_free(struct mm_struct *mm, pgtable_t ptepage); #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE) #define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE) void pgtable_free(void *table, bool is_page); #ifdef CONFIG_SMP struct mmu_gather; void tlb_remove_table(struct mmu_gather *, void *); static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) { unsigned long pgf = (unsigned long)table; if (is_page) pgf |= 0x1UL; tlb_remove_table(tlb, (void *)pgf); } static inline void __tlb_remove_table(void *_table) { void *table = (void *)((unsigned long)_table & ~0x1UL); bool is_page = false; if ((unsigned long)_table & 0x1UL) is_page = true; pgtable_free(table, is_page); } #else /* CONFIG_SMP */ static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) { pgtable_free(table, is_page); } #endif /* !CONFIG_SMP */ static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte, unsigned long address) { pgtable_free_tlb(tlb, pte, true); } #define __pmd_free_tlb(tlb, pmd, addr) \ pgtable_free_tlb(tlb, pmd, false) #define __pud_free_tlb(tlb, pud, addr) \ pgtable_free_tlb(tlb, pud, false) #endif /* _SPARC64_PGALLOC_H */