From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- arch/sparc/include/asm/pgalloc_64.h | 119 ++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 arch/sparc/include/asm/pgalloc_64.h (limited to 'arch/sparc/include/asm/pgalloc_64.h') diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h new file mode 100644 index 000000000..874632f34 --- /dev/null +++ b/arch/sparc/include/asm/pgalloc_64.h @@ -0,0 +1,119 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _SPARC64_PGALLOC_H +#define _SPARC64_PGALLOC_H + +#include +#include +#include +#include + +#include +#include +#include +#include + +/* Page table allocation/freeing. */ + +extern struct kmem_cache *pgtable_cache; + +static inline void __pgd_populate(pgd_t *pgd, pud_t *pud) +{ + pgd_set(pgd, pud); +} + +#define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, 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, + unsigned long address); +pgtable_t pte_alloc_one(struct mm_struct *mm, + unsigned long address); +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) +#define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD)) + +#define check_pgt_cache() do { } while (0) + +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 */ -- cgit v1.2.3