arch/sparc/include/asm/pgalloc_32.h

   1 #ifndef _SPARC_PGALLOC_H
   2 #define _SPARC_PGALLOC_H
   3
   4 #include <linux/kernel.h>
   5 #include <linux/sched.h>
   6
   7 #include <asm/pgtsrmmu.h>
   8 #include <asm/pgtable.h>
   9 #include <asm/vaddrs.h>
  10 #include <asm/page.h>
  11
  12 struct page;
  13
  14 void *srmmu_get_nocache(int size, int align);
  15 void srmmu_free_nocache(void *addr, int size);
  16
  17 #define check_pgt_cache()       do { } while (0)
  18
  19 pgd_t *get_pgd_fast(void);
  20 static inline void free_pgd_fast(pgd_t *pgd)
  21 {
  22         srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
  23 }
  24
  25 #define pgd_free(mm, pgd)       free_pgd_fast(pgd)
  26 #define pgd_alloc(mm)   get_pgd_fast()
  27
  28 static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
  29 {
  30         unsigned long pa = __nocache_pa((unsigned long)pmdp);
  31
  32         set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
  33 }
  34
  35 #define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
  36
  37 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
  38                                    unsigned long address)
  39 {
  40         return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
  41                                  SRMMU_PMD_TABLE_SIZE);
  42 }
  43
  44 static inline void free_pmd_fast(pmd_t * pmd)
  45 {
  46         srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
  47 }
  48
  49 #define pmd_free(mm, pmd)               free_pmd_fast(pmd)
  50 #define __pmd_free_tlb(tlb, pmd, addr)  pmd_free((tlb)->mm, pmd)
  51
  52 void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
  53 #define pmd_pgtable(pmd) pmd_page(pmd)
  54
  55 void pmd_set(pmd_t *pmdp, pte_t *ptep);
  56 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
  57
  58 pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
  59
  60 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
  61                                           unsigned long address)
  62 {
  63         return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
  64 }
  65
  66
  67 static inline void free_pte_fast(pte_t *pte)
  68 {
  69         srmmu_free_nocache(pte, PTE_SIZE);
  70 }
  71
  72 #define pte_free_kernel(mm, pte)        free_pte_fast(pte)
  73
  74 void pte_free(struct mm_struct * mm, pgtable_t pte);
  75 #define __pte_free_tlb(tlb, pte, addr)  pte_free((tlb)->mm, pte)
  76
  77 #endif /* _SPARC_PGALLOC_H */