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/kernel.h>
   6 #include <linux/sched.h>
   7 #include <linux/mm.h>
   8 #include <linux/slab.h>
   9
  10 #include <asm/spitfire.h>
  11 #include <asm/cpudata.h>
  12 #include <asm/cacheflush.h>
  13 #include <asm/page.h>
  14
  15 /* Page table allocation/freeing. */
  16 extern kmem_cache_t *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(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(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 kmem_cache_alloc(pgtable_cache,
  45                                 GFP_KERNEL|__GFP_REPEAT);
  46 }
  47
  48 static inline struct page *pte_alloc_one(struct mm_struct *mm,
  49                                          unsigned long address)
  50 {
  51         return virt_to_page(pte_alloc_one_kernel(mm, address));
  52 }
  53
  54 static inline void pte_free_kernel(pte_t *pte)
  55 {
  56         kmem_cache_free(pgtable_cache, pte);
  57 }
  58
  59 static inline void pte_free(struct page *ptepage)
  60 {
  61         pte_free_kernel(page_address(ptepage));
  62 }
  63
  64
  65 #define pmd_populate_kernel(MM, PMD, PTE)       pmd_set(PMD, PTE)
  66 #define pmd_populate(MM,PMD,PTE_PAGE)           \
  67         pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
  68
  69 #define check_pgt_cache()       do { } while (0)
  70
  71 #endif /* _SPARC64_PGALLOC_H */