Merge branch 'sh/pgtable' of git://github.com/mfleming/linux-2.6

6 files changed, 10 insertions, 90 deletions

diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index 4ea27855c3b..e106474996b 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -6,10 +6,13 @@
 
 #define QUICK_PT 1	/* Other page table pages that are zero on free */
 
+extern pgd_t *pgd_alloc(struct mm_struct *);
+extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
+
 #ifdef CONFIG_PGTABLE_LEVELS_3
-#include <asm/pgalloc_pmd.h>
-#else
-#include <asm/pgalloc_nopmd.h>
+extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
+extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address);
+extern void pmd_free(struct mm_struct *mm, pmd_t *pmd);
 #endif
 
 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
@@ -67,7 +70,6 @@ do {							\
 
 static inline void check_pgt_cache(void)
 {
-	__check_pgt_cache();
 	quicklist_trim(QUICK_PT, NULL, 25, 16);
 }
 
diff --git a/arch/sh/include/asm/pgalloc_nopmd.h b/arch/sh/include/asm/pgalloc_nopmd.h
deleted file mode 100644
index e4b344c37e7..00000000000
--- a/arch/sh/include/asm/pgalloc_nopmd.h
+++ /dev/null
@@ -1,30 +0,0 @@
-#ifndef __ASM_SH_PGALLOC_NOPMD_H
-#define __ASM_SH_PGALLOC_NOPMD_H
-
-#define QUICK_PGD 0	/* We preserve special mappings over free */
-
-static inline void pgd_ctor(void *x)
-{
-	pgd_t *pgd = x;
-
-	memcpy(pgd + USER_PTRS_PER_PGD,
-	       swapper_pg_dir + USER_PTRS_PER_PGD,
-	       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-}
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-	return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);
-}
-
-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
-	quicklist_free(QUICK_PGD, NULL, pgd);
-}
-
-static inline void __check_pgt_cache(void)
-{
-	quicklist_trim(QUICK_PGD, NULL, 25, 16);
-}
-
-#endif /* __ASM_SH_PGALLOC_NOPMD_H */
diff --git a/arch/sh/include/asm/pgalloc_pmd.h b/arch/sh/include/asm/pgalloc_pmd.h
deleted file mode 100644
index 20f75cc4eb0..00000000000
--- a/arch/sh/include/asm/pgalloc_pmd.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef __ASM_SH_PGALLOC_PMD_H
-#define __ASM_SH_PGALLOC_PMD_H
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-	pgd_t *pgd;
-	int i;
-
-	pgd = kzalloc(sizeof(*pgd) * PTRS_PER_PGD, GFP_KERNEL | __GFP_REPEAT);
-
-	for (i = USER_PTRS_PER_PGD; i < PTRS_PER_PGD; i++)
-		pgd[i] = swapper_pg_dir[i];
-
-	return pgd;
-}
-
-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
-	kfree(pgd);
-}
-
-static inline void __check_pgt_cache(void)
-{
-}
-
-static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
-{
-	set_pud(pud, __pud((unsigned long)pmd));
-}
-
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
-{
-	return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
-	quicklist_free(QUICK_PT, NULL, pmd);
-}
-
-#endif /* __ASM_SH_PGALLOC_PMD_H */
diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h
index 9effcc3b0d1..78598ec33d0 100644
--- a/arch/sh/include/asm/pgtable.h
+++ b/arch/sh/include/asm/pgtable.h
@@ -141,9 +141,9 @@ typedef pte_t *pte_addr_t;
 #define pte_pfn(x)		((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
 
 /*
- * No page table caches to initialise
+ * Initialise the page table caches
  */
-#define pgtable_cache_init()	do { } while (0)
+extern void pgtable_cache_init(void);
 
 struct vm_area_struct;
 
diff --git a/arch/sh/include/asm/pgtable_64.h b/arch/sh/include/asm/pgtable_64.h
index 17cdbecc3ad..dd381588c69 100644
--- a/arch/sh/include/asm/pgtable_64.h
+++ b/arch/sh/include/asm/pgtable_64.h
@@ -43,11 +43,6 @@ static __inline__ void set_pte(pte_t *pteptr, pte_t pteval)
 }
 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
-static __inline__ void pmd_set(pmd_t *pmdp,pte_t *ptep)
-{
-	pmd_val(*pmdp) = (unsigned long) ptep;
-}
-
 /*
  * PGD defines. Top level.
  */
@@ -203,12 +198,6 @@ static __inline__ void pmd_set(pmd_t *pmdp,pte_t *ptep)
 #define pgprot_writecombine(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
 
 /*
- * Handling allocation failures during page table setup.
- */
-extern void __handle_bad_pmd_kernel(pmd_t * pmd);
-#define __handle_bad_pmd(x)	__handle_bad_pmd_kernel(x)
-
-/*
  * PTE level access routines.
  *
  * Note1:
diff --git a/arch/sh/include/asm/pgtable_pmd.h b/arch/sh/include/asm/pgtable_pmd.h
index 78dc36e1c2d..42a180e534a 100644
--- a/arch/sh/include/asm/pgtable_pmd.h
+++ b/arch/sh/include/asm/pgtable_pmd.h
@@ -17,11 +17,11 @@
 #define USER_PTRS_PER_PGD	2
 
 /* PMD bits */
-#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT - 3))
+#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT - PTE_MAGNITUDE))
 #define PMD_SIZE	(1UL << PMD_SHIFT)
 #define PMD_MASK	(~(PMD_SIZE-1))
 
-#define PTRS_PER_PMD	(PAGE_SIZE / sizeof(pmd_t))
+#define PTRS_PER_PMD	((1 << PGDIR_SHIFT) / PMD_SIZE)
 
 #define pmd_ERROR(e) \
 	printk("%s:%d: bad pmd %016llx.\n", __FILE__, __LINE__, pmd_val(e))