1 #ifndef _ASM_POWERPC_PGALLOC_H 2 #define _ASM_POWERPC_PGALLOC_H 3 #ifdef __KERNEL__ 4 5 #include <linux/mm.h> 6 7 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) 8 { 9 free_page((unsigned long)pte); 10 } 11 12 static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) 13 { 14 pgtable_page_dtor(ptepage); 15 __free_page(ptepage); 16 } 17 18 typedef struct pgtable_free { 19 unsigned long val; 20 } pgtable_free_t; 21 22 #define PGF_CACHENUM_MASK 0x7 23 24 static inline pgtable_free_t pgtable_free_cache(void *p, int cachenum, 25 unsigned long mask) 26 { 27 BUG_ON(cachenum > PGF_CACHENUM_MASK); 28 29 return (pgtable_free_t){.val = ((unsigned long) p & ~mask) | cachenum}; 30 } 31 32 #ifdef CONFIG_PPC64 33 #include <asm/pgalloc-64.h> 34 #else 35 #include <asm/pgalloc-32.h> 36 #endif 37 38 extern void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf); 39 40 #ifdef CONFIG_SMP 41 #define __pte_free_tlb(tlb,ptepage) \ 42 do { \ 43 pgtable_page_dtor(ptepage); \ 44 pgtable_free_tlb(tlb, pgtable_free_cache(page_address(ptepage), \ 45 PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1)); \ 46 } while (0) 47 #else 48 #define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte)) 49 #endif 50 51 52 #endif /* __KERNEL__ */ 53 #endif /* _ASM_POWERPC_PGALLOC_H */ 54