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((unsigned long)pmdp); 33 34 set_pte((pte_t *)pgdp, (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 */ 80