1#ifndef _SPARC64_PGALLOC_H 2#define _SPARC64_PGALLOC_H 3 4#include <linux/kernel.h> 5#include <linux/sched.h> 6#include <linux/mm.h> 7#include <linux/slab.h> 8 9#include <asm/spitfire.h> 10#include <asm/cpudata.h> 11#include <asm/cacheflush.h> 12#include <asm/page.h> 13 14/* Page table allocation/freeing. */ 15 16extern struct kmem_cache *pgtable_cache; 17 18static inline void __pgd_populate(pgd_t *pgd, pud_t *pud) 19{ 20 pgd_set(pgd, pud); 21} 22 23#define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD) 24 25static inline pgd_t *pgd_alloc(struct mm_struct *mm) 26{ 27 return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); 28} 29 30static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) 31{ 32 kmem_cache_free(pgtable_cache, pgd); 33} 34 35static inline void __pud_populate(pud_t *pud, pmd_t *pmd) 36{ 37 pud_set(pud, pmd); 38} 39 40#define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD) 41 42static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) 43{ 44 return kmem_cache_alloc(pgtable_cache, 45 GFP_KERNEL|__GFP_REPEAT); 46} 47 48static inline void pud_free(struct mm_struct *mm, pud_t *pud) 49{ 50 kmem_cache_free(pgtable_cache, pud); 51} 52 53static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) 54{ 55 return kmem_cache_alloc(pgtable_cache, 56 GFP_KERNEL|__GFP_REPEAT); 57} 58 59static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) 60{ 61 kmem_cache_free(pgtable_cache, pmd); 62} 63 64pte_t *pte_alloc_one_kernel(struct mm_struct *mm, 65 unsigned long address); 66pgtable_t pte_alloc_one(struct mm_struct *mm, 67 unsigned long address); 68void pte_free_kernel(struct mm_struct *mm, pte_t *pte); 69void pte_free(struct mm_struct *mm, pgtable_t ptepage); 70 71#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE) 72#define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE) 73#define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD)) 74 75#define check_pgt_cache() do { } while (0) 76 77void pgtable_free(void *table, bool is_page); 78 79#ifdef CONFIG_SMP 80 81struct mmu_gather; 82void tlb_remove_table(struct mmu_gather *, void *); 83 84static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) 85{ 86 unsigned long pgf = (unsigned long)table; 87 if (is_page) 88 pgf |= 0x1UL; 89 tlb_remove_table(tlb, (void *)pgf); 90} 91 92static inline void __tlb_remove_table(void *_table) 93{ 94 void *table = (void *)((unsigned long)_table & ~0x1UL); 95 bool is_page = false; 96 97 if ((unsigned long)_table & 0x1UL) 98 is_page = true; 99 pgtable_free(table, is_page); 100} 101#else /* CONFIG_SMP */ 102static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) 103{ 104 pgtable_free(table, is_page); 105} 106#endif /* !CONFIG_SMP */ 107 108static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte, 109 unsigned long address) 110{ 111 pgtable_free_tlb(tlb, pte, true); 112} 113 114#define __pmd_free_tlb(tlb, pmd, addr) \ 115 pgtable_free_tlb(tlb, pmd, false) 116 117#define __pud_free_tlb(tlb, pud, addr) \ 118 pgtable_free_tlb(tlb, pud, false) 119 120#endif /* _SPARC64_PGALLOC_H */ 121