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-rw-r--r--arch/mips/include/asm/page.h12
-rw-r--r--arch/mips/include/asm/pgalloc.h4
-rw-r--r--arch/mips/include/asm/pgtable-64.h36
-rw-r--r--arch/mips/include/asm/pgtable.h2
4 files changed, 37 insertions, 17 deletions
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index f266295cce5..ac32572430f 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -107,18 +107,6 @@ typedef struct { unsigned long pte; } pte_t;
typedef struct page *pgtable_t;
/*
- * For 3-level pagetables we defines these ourselves, for 2-level the
- * definitions are supplied by <asm-generic/pgtable-nopmd.h>.
- */
-#ifdef CONFIG_64BIT
-
-typedef struct { unsigned long pmd; } pmd_t;
-#define pmd_val(x) ((x).pmd)
-#define __pmd(x) ((pmd_t) { (x) } )
-
-#endif
-
-/*
* Right now we don't support 4-level pagetables, so all pud-related
* definitions come from <asm-generic/pgtable-nopud.h>.
*/
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 3738f4b48cb..881d18b4e29 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -31,7 +31,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
*/
extern void pmd_init(unsigned long page, unsigned long pagetable);
-#ifdef CONFIG_64BIT
+#ifndef __PAGETABLE_PMD_FOLDED
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
@@ -104,7 +104,7 @@ do { \
tlb_remove_page((tlb), pte); \
} while (0)
-#ifdef CONFIG_64BIT
+#ifndef __PAGETABLE_PMD_FOLDED
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 8eda30b467d..24314d21a70 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -16,7 +16,11 @@
#include <asm/cachectl.h>
#include <asm/fixmap.h>
+#ifdef CONFIG_PAGE_SIZE_64KB
+#include <asm-generic/pgtable-nopmd.h>
+#else
#include <asm-generic/pgtable-nopud.h>
+#endif
/*
* Each address space has 2 4K pages as its page directory, giving 1024
@@ -37,13 +41,20 @@
* fault address - VMALLOC_START.
*/
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+#ifdef __PAGETABLE_PMD_FOLDED
+#define PGDIR_SHIFT (PAGE_SHIFT + PAGE_SHIFT + PTE_ORDER - 3)
+#else
+
/* PMD_SHIFT determines the size of the area a second-level page table can map */
#define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT + PTE_ORDER - 3))
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE-1))
-/* PGDIR_SHIFT determines what a third-level page table entry can map */
+
#define PGDIR_SHIFT (PMD_SHIFT + (PAGE_SHIFT + PMD_ORDER - 3))
+#endif
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
@@ -92,12 +103,14 @@
#ifdef CONFIG_PAGE_SIZE_64KB
#define PGD_ORDER 0
#define PUD_ORDER aieeee_attempt_to_allocate_pud
-#define PMD_ORDER 0
+#define PMD_ORDER aieeee_attempt_to_allocate_pmd
#define PTE_ORDER 0
#endif
#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t))
+#ifndef __PAGETABLE_PMD_FOLDED
#define PTRS_PER_PMD ((PAGE_SIZE << PMD_ORDER) / sizeof(pmd_t))
+#endif
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))
#if PGDIR_SIZE >= TASK_SIZE
@@ -122,15 +135,30 @@
#define pte_ERROR(e) \
printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
+#ifndef __PAGETABLE_PMD_FOLDED
#define pmd_ERROR(e) \
printk("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
+#endif
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
extern pte_t invalid_pte_table[PTRS_PER_PTE];
extern pte_t empty_bad_page_table[PTRS_PER_PTE];
+
+
+#ifndef __PAGETABLE_PMD_FOLDED
+/*
+ * For 3-level pagetables we defines these ourselves, for 2-level the
+ * definitions are supplied by <asm-generic/pgtable-nopmd.h>.
+ */
+typedef struct { unsigned long pmd; } pmd_t;
+#define pmd_val(x) ((x).pmd)
+#define __pmd(x) ((pmd_t) { (x) } )
+
+
extern pmd_t invalid_pmd_table[PTRS_PER_PMD];
extern pmd_t empty_bad_pmd_table[PTRS_PER_PMD];
+#endif
/*
* Empty pgd/pmd entries point to the invalid_pte_table.
@@ -151,6 +179,7 @@ static inline void pmd_clear(pmd_t *pmdp)
{
pmd_val(*pmdp) = ((unsigned long) invalid_pte_table);
}
+#ifndef __PAGETABLE_PMD_FOLDED
/*
* Empty pud entries point to the invalid_pmd_table.
@@ -174,6 +203,7 @@ static inline void pud_clear(pud_t *pudp)
{
pud_val(*pudp) = ((unsigned long) invalid_pmd_table);
}
+#endif
#define pte_page(x) pfn_to_page(pte_pfn(x))
@@ -198,6 +228,7 @@ static inline void pud_clear(pud_t *pudp)
/* to find an entry in a page-table-directory */
#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
+#ifndef __PAGETABLE_PMD_FOLDED
static inline unsigned long pud_page_vaddr(pud_t pud)
{
return pud_val(pud);
@@ -210,6 +241,7 @@ static inline pmd_t *pmd_offset(pud_t * pud, unsigned long address)
{
return (pmd_t *) pud_page_vaddr(*pud) + pmd_index(address);
}
+#endif
/* Find an entry in the third-level page table.. */
#define __pte_offset(address) \
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index 1854336e56a..02335fda9e7 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -177,7 +177,7 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt
*/
#define set_pmd(pmdptr, pmdval) do { *(pmdptr) = (pmdval); } while(0)
-#ifdef CONFIG_64BIT
+#ifndef __PAGETABLE_PMD_FOLDED
/*
* (puds are folded into pgds so this doesn't get actually called,
* but the define is needed for a generic inline function.)