summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgalloc.h147
-rw-r--r--arch/powerpc/include/asm/nohash/64/pgalloc.h38
-rw-r--r--arch/powerpc/include/asm/page.h10
-rw-r--r--arch/powerpc/mm/pgtable_64.c2
4 files changed, 52 insertions, 145 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 37283e3d8e56..faad1319ba26 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -41,6 +41,15 @@ extern struct kmem_cache *pgtable_cache[];
pgtable_cache[(shift) - 1]; \
})
+#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO
+
+extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
+extern void pte_fragment_free(unsigned long *, int);
+extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
+#ifdef CONFIG_SMP
+extern void __tlb_remove_table(void *_table);
+#endif
+
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
@@ -72,29 +81,47 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
pud_set(pud, __pgtable_ptr_val(pmd));
}
+static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
+ unsigned long address)
+{
+ pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE);
+}
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
+ GFP_KERNEL|__GFP_REPEAT);
+}
+
+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+ kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
+}
+
+static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
+ unsigned long address)
+{
+ return pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX);
+}
+
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pte_t *pte)
{
pmd_set(pmd, __pgtable_ptr_val(pte));
}
-/*
- * FIXME!!
- * Between 4K and 64K pages, we differ in what is stored in pmd. ie.
- * typedef pte_t *pgtable_t; -> 64K
- * typedef struct page *pgtable_t; -> 4k
- */
-#ifdef CONFIG_PPC_4K_PAGES
+
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
pgtable_t pte_page)
{
- pmd_set(pmd, __pgtable_ptr_val(page_address(pte_page)));
+ pmd_set(pmd, __pgtable_ptr_val(pte_page));
}
static inline pgtable_t pmd_pgtable(pmd_t pmd)
{
- return pmd_page(pmd);
+ return (pgtable_t)pmd_page_vaddr(pmd);
}
+#ifdef CONFIG_PPC_4K_PAGES
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
@@ -115,83 +142,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
__free_page(page);
return NULL;
}
- return page;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
-{
- pgtable_page_dtor(ptepage);
- __free_page(ptepage);
-}
-
-static inline void pgtable_free(void *table, unsigned index_size)
-{
- if (!index_size)
- free_page((unsigned long)table);
- else {
- BUG_ON(index_size > MAX_PGTABLE_INDEX_SIZE);
- kmem_cache_free(PGT_CACHE(index_size), table);
- }
-}
-
-#ifdef CONFIG_SMP
-static inline void pgtable_free_tlb(struct mmu_gather *tlb,
- void *table, int shift)
-{
- unsigned long pgf = (unsigned long)table;
- BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
- pgf |= shift;
- tlb_remove_table(tlb, (void *)pgf);
-}
-
-static inline void __tlb_remove_table(void *_table)
-{
- void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE);
- unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE;
-
- pgtable_free(table, shift);
-}
-#else /* !CONFIG_SMP */
-static inline void pgtable_free_tlb(struct mmu_gather *tlb,
- void *table, int shift)
-{
- pgtable_free(table, shift);
-}
-#endif /* CONFIG_SMP */
-
-static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
- unsigned long address)
-{
- tlb_flush_pgtable(tlb, address);
- pgtable_page_dtor(table);
- pgtable_free_tlb(tlb, page_address(table), 0);
+ return pte;
}
-
#else /* if CONFIG_PPC_64K_PAGES */
-extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
-extern void pte_fragment_free(unsigned long *, int);
-extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
-#ifdef CONFIG_SMP
-extern void __tlb_remove_table(void *_table);
-#endif
-
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
- pgtable_t pte_page)
-{
- pmd_set(pmd, __pgtable_ptr_val(pte_page));
-}
-
-static inline pgtable_t pmd_pgtable(pmd_t pmd)
-{
- return (pgtable_t)pmd_page_vaddr(pmd);
-}
-
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
@@ -199,10 +153,11 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
}
static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
- unsigned long address)
+ unsigned long address)
{
return (pgtable_t)pte_fragment_alloc(mm, address, 0);
}
+#endif
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
@@ -220,30 +175,6 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
tlb_flush_pgtable(tlb, address);
pgtable_free_tlb(tlb, table, 0);
}
-#endif /* CONFIG_PPC_4K_PAGES */
-
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
-{
- return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
- GFP_KERNEL|__GFP_REPEAT);
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
- kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
-}
-
-static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
- unsigned long address)
-{
- return pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX);
-}
-
-static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
- unsigned long address)
-{
- pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE);
-}
#define check_pgt_cache() do { } while (0)
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index be0cce7f7d4e..0c12a3bfe2ab 100644
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -119,46 +119,14 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
__free_page(ptepage);
}
-static inline void pgtable_free(void *table, unsigned index_size)
-{
- if (!index_size)
- free_page((unsigned long)table);
- else {
- BUG_ON(index_size > MAX_PGTABLE_INDEX_SIZE);
- kmem_cache_free(PGT_CACHE(index_size), table);
- }
-}
-
+extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
#ifdef CONFIG_SMP
-static inline void pgtable_free_tlb(struct mmu_gather *tlb,
- void *table, int shift)
-{
- unsigned long pgf = (unsigned long)table;
- BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
- pgf |= shift;
- tlb_remove_table(tlb, (void *)pgf);
-}
-
-static inline void __tlb_remove_table(void *_table)
-{
- void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE);
- unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE;
-
- pgtable_free(table, shift);
-}
-#else /* !CONFIG_SMP */
-static inline void pgtable_free_tlb(struct mmu_gather *tlb,
- void *table, int shift)
-{
- pgtable_free(table, shift);
-}
-#endif /* CONFIG_SMP */
-
+extern void __tlb_remove_table(void *_table);
+#endif
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
unsigned long address)
{
tlb_flush_pgtable(tlb, address);
- pgtable_page_dtor(table);
pgtable_free_tlb(tlb, page_address(table), 0);
}
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 158574d2acf4..51db3a37bced 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -316,12 +316,20 @@ void arch_free_page(struct page *page, int order);
#endif
struct vm_area_struct;
-
+#ifdef CONFIG_PPC_BOOK3S_64
+/*
+ * For BOOK3s 64 with 4k and 64K linux page size
+ * we want to use pointers, because the page table
+ * actually store pfn
+ */
+typedef pte_t *pgtable_t;
+#else
#if defined(CONFIG_PPC_64K_PAGES) && defined(CONFIG_PPC64)
typedef pte_t *pgtable_t;
#else
typedef struct page *pgtable_t;
#endif
+#endif
#include <asm-generic/memory_model.h>
#endif /* __ASSEMBLY__ */
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index a9a2238c5565..326c3d43edcd 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -367,6 +367,7 @@ pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel
return __alloc_for_cache(mm, kernel);
}
+#endif /* CONFIG_PPC_64K_PAGES */
void pte_fragment_free(unsigned long *table, int kernel)
{
@@ -413,7 +414,6 @@ void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift)
}
}
#endif
-#endif /* CONFIG_PPC_64K_PAGES */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
OpenPOWER on IntegriCloud