~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/sparc/include/asm/pgalloc_64.h

Version: ~ [ linux-5.5-rc7 ] ~ [ linux-5.4.13 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.97 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.166 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.210 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.210 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.81 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 42                                           unsigned long address)
 43 {
 44         return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
 45 }
 46 
 47 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 48                                         unsigned long address)
 49 {
 50         struct page *page;
 51         pte_t *pte;
 52 
 53         pte = pte_alloc_one_kernel(mm, address);
 54         if (!pte)
 55                 return NULL;
 56         page = virt_to_page(pte);
 57         pgtable_page_ctor(page);
 58         return page;
 59 }
 60 
 61 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 62 {
 63         free_page((unsigned long)pte);
 64 }
 65 
 66 static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
 67 {
 68         pgtable_page_dtor(ptepage);
 69         __free_page(ptepage);
 70 }
 71 
 72 #define pmd_populate_kernel(MM, PMD, PTE)       pmd_set(PMD, PTE)
 73 #define pmd_populate(MM,PMD,PTE_PAGE)           \
 74         pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
 75 #define pmd_pgtable(pmd) pmd_page(pmd)
 76 
 77 #define check_pgt_cache()       do { } while (0)
 78 
 79 static inline void pgtable_free(void *table, bool is_page)
 80 {
 81         if (is_page)
 82                 free_page((unsigned long)table);
 83         else
 84                 kmem_cache_free(pgtable_cache, table);
 85 }
 86 
 87 #ifdef CONFIG_SMP
 88 
 89 struct mmu_gather;
 90 extern void tlb_remove_table(struct mmu_gather *, void *);
 91 
 92 static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
 93 {
 94         unsigned long pgf = (unsigned long)table;
 95         if (is_page)
 96                 pgf |= 0x1UL;
 97         tlb_remove_table(tlb, (void *)pgf);
 98 }
 99 
100 static inline void __tlb_remove_table(void *_table)
101 {
102         void *table = (void *)((unsigned long)_table & ~0x1UL);
103         bool is_page = false;
104 
105         if ((unsigned long)_table & 0x1UL)
106                 is_page = true;
107         pgtable_free(table, is_page);
108 }
109 #else /* CONFIG_SMP */
110 static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
111 {
112         pgtable_free(table, is_page);
113 }
114 #endif /* !CONFIG_SMP */
115 
116 static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage,
117                                   unsigned long address)
118 {
119         pgtable_page_dtor(ptepage);
120         pgtable_free_tlb(tlb, page_address(ptepage), true);
121 }
122 
123 #define __pmd_free_tlb(tlb, pmd, addr)                \
124         pgtable_free_tlb(tlb, pmd, false)
125 
126 #endif /* _SPARC64_PGALLOC_H */
127 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp