diff options
Diffstat (limited to 'arch/powerpc/include/asm/book3s/32/pgalloc.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/32/pgalloc.h | 44 |
1 files changed, 12 insertions, 32 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h index 82e44b1a00ae..3633502e102c 100644 --- a/arch/powerpc/include/asm/book3s/32/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h @@ -25,10 +25,7 @@ extern void __bad_pte(pmd_t *pmd); extern struct kmem_cache *pgtable_cache[]; -#define PGT_CACHE(shift) ({ \ - BUG_ON(!(shift)); \ - pgtable_cache[(shift) - 1]; \ - }) +#define PGT_CACHE(shift) pgtable_cache[shift] static inline pgd_t *pgd_alloc(struct mm_struct *mm) { @@ -50,8 +47,6 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) #define __pmd_free_tlb(tlb,x,a) do { } while (0) /* #define pgd_populate(mm, pmd, pte) BUG() */ -#ifndef CONFIG_BOOKE - static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *pte) { @@ -61,46 +56,31 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t pte_page) { - *pmdp = __pmd((page_to_pfn(pte_page) << PAGE_SHIFT) | _PMD_PRESENT); -} - -#define pmd_pgtable(pmd) pmd_page(pmd) -#else - -static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, - pte_t *pte) -{ - *pmdp = __pmd((unsigned long)pte | _PMD_PRESENT); -} - -static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, - pgtable_t pte_page) -{ - *pmdp = __pmd((unsigned long)lowmem_page_address(pte_page) | _PMD_PRESENT); + *pmdp = __pmd(__pa(pte_page) | _PMD_PRESENT); } -#define pmd_pgtable(pmd) pmd_page(pmd) -#endif +#define pmd_pgtable(pmd) ((pgtable_t)pmd_page_vaddr(pmd)) -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); -extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr); +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm); +extern pgtable_t pte_alloc_one(struct mm_struct *mm); +void pte_frag_destroy(void *pte_frag); +pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel); +void pte_fragment_free(unsigned long *table, int kernel); static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - free_page((unsigned long)pte); + pte_fragment_free((unsigned long *)pte, 1); } static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) { - pgtable_page_dtor(ptepage); - __free_page(ptepage); + pte_fragment_free((unsigned long *)ptepage, 0); } static inline void pgtable_free(void *table, unsigned index_size) { if (!index_size) { - pgtable_page_dtor(virt_to_page(table)); - free_page((unsigned long)table); + pte_fragment_free((unsigned long *)table, 0); } else { BUG_ON(index_size > MAX_PGTABLE_INDEX_SIZE); kmem_cache_free(PGT_CACHE(index_size), table); @@ -138,6 +118,6 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb, static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { - pgtable_free_tlb(tlb, page_address(table), 0); + pgtable_free_tlb(tlb, table, 0); } #endif /* _ASM_POWERPC_BOOK3S_32_PGALLOC_H */ |