#include <linux/cpumask.h>
#include <linux/percpu.h>
+#ifndef CONFIG_PPC_SUBPAGE_PROT
+static inline void subpage_prot_free(pgd_t *pgd) {}
+#endif
+
extern struct kmem_cache *pgtable_cache[];
#define PGD_CACHE_NUM 0
return kmem_cache_alloc(pgtable_cache[PGD_CACHE_NUM], GFP_KERNEL);
}
-static inline void pgd_free(pgd_t *pgd)
+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
+ subpage_prot_free(pgd);
kmem_cache_free(pgtable_cache[PGD_CACHE_NUM], pgd);
}
GFP_KERNEL|__GFP_REPEAT);
}
-static inline void pud_free(pud_t *pud)
+static inline void pud_free(struct mm_struct *mm, pud_t *pud)
{
kmem_cache_free(pgtable_cache[PUD_CACHE_NUM], pud);
}
#define pmd_populate(mm, pmd, pte_page) \
pmd_populate_kernel(mm, pmd, page_address(pte_page))
#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
+#define pmd_pgtable(pmd) pmd_page(pmd)
#else /* CONFIG_PPC_64K_PAGES */
#define pmd_populate(mm, pmd, pte_page) \
pmd_populate_kernel(mm, pmd, page_address(pte_page))
+#define pmd_pgtable(pmd) pmd_page(pmd)
#endif /* CONFIG_PPC_64K_PAGES */
GFP_KERNEL|__GFP_REPEAT);
}
-static inline void pmd_free(pmd_t *pmd)
+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
kmem_cache_free(pgtable_cache[PMD_CACHE_NUM], pmd);
}
return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
}
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
- unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
+ unsigned long address)
{
- pte_t *pte = pte_alloc_one_kernel(mm, address);
- return pte ? virt_to_page(pte) : NULL;
+ struct page *page;
+ pte_t *pte;
+
+ pte = pte_alloc_one_kernel(mm, address);
+ if (!pte)
+ return NULL;
+ page = virt_to_page(pte);
+ pgtable_page_ctor(page);
+ return page;
}
-static inline void pte_free_kernel(pte_t *pte)
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
free_page((unsigned long)pte);
}
-static inline void pte_free(struct page *ptepage)
+static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
+ pgtable_page_dtor(ptepage);
__free_page(ptepage);
}
extern void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf);
-#define __pte_free_tlb(tlb, ptepage) \
+#define __pte_free_tlb(tlb,ptepage) \
+do { \
+ pgtable_page_dtor(ptepage); \
pgtable_free_tlb(tlb, pgtable_free_cache(page_address(ptepage), \
- PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1))
+ PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1)); \
+} while (0)
#define __pmd_free_tlb(tlb, pmd) \
pgtable_free_tlb(tlb, pgtable_free_cache(pmd, \
PMD_CACHE_NUM, PMD_TABLE_SIZE-1))