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 extern struct resource sparc_iomap;
  18
  19 #define check_pgt_cache()       do { } while (0)
  20
  21 pgd_t *get_pgd_fast(void);
  22 static inline void free_pgd_fast(pgd_t *pgd)
  23 {
  24         srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
  25 }
  26
  27 #define pgd_free(mm, pgd)       free_pgd_fast(pgd)
  28 #define pgd_alloc(mm)   get_pgd_fast()
  29
  30 static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
  31 {
  32         unsigned long pa = __nocache_pa(pmdp);
  33
  34         set_pte((pte_t *)pgdp, __pte((SRMMU_ET_PTD | (pa >> 4))));
  35 }
  36
  37 #define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
  38
  39 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
  40                                    unsigned long address)
  41 {
  42         return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
  43                                  SRMMU_PMD_TABLE_SIZE);
  44 }
  45
  46 static inline void free_pmd_fast(pmd_t * pmd)
  47 {
  48         srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
  49 }
  50
  51 #define pmd_free(mm, pmd)               free_pmd_fast(pmd)
  52 #define __pmd_free_tlb(tlb, pmd, addr)  pmd_free((tlb)->mm, pmd)
  53
  54 void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
  55 #define pmd_pgtable(pmd) pmd_page(pmd)
  56
  57 void pmd_set(pmd_t *pmdp, pte_t *ptep);
  58 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
  59
  60 pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
  61
  62 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
  63                                           unsigned long address)
  64 {
  65         return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
  66 }
  67
  68
  69 static inline void free_pte_fast(pte_t *pte)
  70 {
  71         srmmu_free_nocache(pte, PTE_SIZE);
  72 }
  73
  74 #define pte_free_kernel(mm, pte)        free_pte_fast(pte)
  75
  76 void pte_free(struct mm_struct * mm, pgtable_t pte);
  77 #define __pte_free_tlb(tlb, pte, addr)  pte_free((tlb)->mm, pte)
  78
  79 #endif /* _SPARC_PGALLOC_H */