include/asm-sparc64/pgalloc.h

   1 /* $Id: pgalloc.h,v 1.30 2001/12/21 04:56:17 davem Exp $ */
   2 #ifndef _SPARC64_PGALLOC_H
   3 #define _SPARC64_PGALLOC_H
   4
   5 #include <linux/config.h>
   6 #include <linux/kernel.h>
   7 #include <linux/sched.h>
   8 #include <linux/mm.h>
   9 #include <linux/slab.h>
  10
  11 #include <asm/spitfire.h>
  12 #include <asm/cpudata.h>
  13 #include <asm/cacheflush.h>
  14 #include <asm/page.h>
  15
  16 /* Page table allocation/freeing. */
  17 extern kmem_cache_t *pgtable_cache;
  18
  19 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
  20 {
  21         return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
  22 }
  23
  24 static inline void pgd_free(pgd_t *pgd)
  25 {
  26         kmem_cache_free(pgtable_cache, pgd);
  27 }
  28
  29 #define pud_populate(MM, PUD, PMD)      pud_set(PUD, PMD)
  30
  31 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
  32 {
  33         return kmem_cache_alloc(pgtable_cache,
  34                                 GFP_KERNEL|__GFP_REPEAT);
  35 }
  36
  37 static inline void pmd_free(pmd_t *pmd)
  38 {
  39         kmem_cache_free(pgtable_cache, pmd);
  40 }
  41
  42 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
  43                                           unsigned long address)
  44 {
  45         return kmem_cache_alloc(pgtable_cache,
  46                                 GFP_KERNEL|__GFP_REPEAT);
  47 }
  48
  49 static inline struct page *pte_alloc_one(struct mm_struct *mm,
  50                                          unsigned long address)
  51 {
  52         return virt_to_page(pte_alloc_one_kernel(mm, address));
  53 }
  54
  55 static inline void pte_free_kernel(pte_t *pte)
  56 {
  57         kmem_cache_free(pgtable_cache, pte);
  58 }
  59
  60 static inline void pte_free(struct page *ptepage)
  61 {
  62         pte_free_kernel(page_address(ptepage));
  63 }
  64
  65
  66 #define pmd_populate_kernel(MM, PMD, PTE)       pmd_set(PMD, PTE)
  67 #define pmd_populate(MM,PMD,PTE_PAGE)           \
  68         pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
  69
  70 #define check_pgt_cache()       do { } while (0)
  71
  72 #endif /* _SPARC64_PGALLOC_H */