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 */ 78