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 16 extern struct kmem_cache *pgtable_cache; 17 18 static inline pgd_t *pgd_alloc(struct mm_struct *mm) 19 { 20 return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); 21 } 22 23 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) 24 { 25 kmem_cache_free(pgtable_cache, pgd); 26 } 27 28 #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) 29 30 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) 31 { 32 return kmem_cache_alloc(pgtable_cache, 33 GFP_KERNEL|__GFP_REPEAT); 34 } 35 36 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) 37 { 38 kmem_cache_free(pgtable_cache, pmd); 39 } 40 41 extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, 42 unsigned long address); 43 extern pgtable_t pte_alloc_one(struct mm_struct *mm, 44 unsigned long address); 45 extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte); 46 extern void pte_free(struct mm_struct *mm, pgtable_t ptepage); 47 48 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE) 49 #define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE) 50 #define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD)) 51 52 #define check_pgt_cache() do { } while (0) 53 54 extern void pgtable_free(void *table, bool is_page); 55 56 #ifdef CONFIG_SMP 57 58 struct mmu_gather; 59 extern void tlb_remove_table(struct mmu_gather *, void *); 60 61 static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) 62 { 63 unsigned long pgf = (unsigned long)table; 64 if (is_page) 65 pgf |= 0x1UL; 66 tlb_remove_table(tlb, (void *)pgf); 67 } 68 69 static inline void __tlb_remove_table(void *_table) 70 { 71 void *table = (void *)((unsigned long)_table & ~0x1UL); 72 bool is_page = false; 73 74 if ((unsigned long)_table & 0x1UL) 75 is_page = true; 76 pgtable_free(table, is_page); 77 } 78 #else /* CONFIG_SMP */ 79 static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) 80 { 81 pgtable_free(table, is_page); 82 } 83 #endif /* !CONFIG_SMP */ 84 85 static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte, 86 unsigned long address) 87 { 88 pgtable_free_tlb(tlb, pte, true); 89 } 90 91 #define __pmd_free_tlb(tlb, pmd, addr) \ 92 pgtable_free_tlb(tlb, pmd, false) 93 94 #endif /* _SPARC64_PGALLOC_H */ 95