x86: move pmd functions into common asm/pgalloc.h
Common definitions for 3-level pagetable functions.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/pgalloc.h b/include/asm-x86/pgalloc.h
index 0d15e21..ae23839 100644
--- a/include/asm-x86/pgalloc.h
+++ b/include/asm-x86/pgalloc.h
@@ -40,6 +40,39 @@
extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
+static inline void pmd_populate_kernel(struct mm_struct *mm,
+ pmd_t *pmd, pte_t *pte)
+{
+ paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT);
+ set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
+}
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+ struct page *pte)
+{
+ unsigned long pfn = page_to_pfn(pte);
+
+ paravirt_alloc_pt(mm, pfn);
+ set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
+}
+
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+#if PAGETABLE_LEVELS > 2
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
+}
+
+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+ BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
+ free_page((unsigned long)pmd);
+}
+
+extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd);
+#endif /* PAGETABLE_LEVELS > 2 */
+
#ifdef CONFIG_X86_32
# include "pgalloc_32.h"
#else
diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h
index 96a09f5..b83bc01 100644
--- a/include/asm-x86/pgalloc_32.h
+++ b/include/asm-x86/pgalloc_32.h
@@ -1,39 +1,7 @@
#ifndef _I386_PGALLOC_H
#define _I386_PGALLOC_H
-static inline void pmd_populate_kernel(struct mm_struct *mm,
- pmd_t *pmd, pte_t *pte)
-{
- paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT);
- set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
-}
-
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
-{
- unsigned long pfn = page_to_pfn(pte);
-
- paravirt_alloc_pt(mm, pfn);
- set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
-}
-#define pmd_pgtable(pmd) pmd_page(pmd)
-
#ifdef CONFIG_X86_PAE
-/*
- * In the PAE case we free the pmds as part of the pgd.
- */
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
-{
- return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
- BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
- free_page((unsigned long)pmd);
-}
-
-extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd);
-
extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
#endif /* CONFIG_X86_PAE */
diff --git a/include/asm-x86/pgalloc_64.h b/include/asm-x86/pgalloc_64.h
index fc3414d..5019681 100644
--- a/include/asm-x86/pgalloc_64.h
+++ b/include/asm-x86/pgalloc_64.h
@@ -3,11 +3,6 @@
#include <asm/pda.h>
-static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
-{
- set_pmd(pmd, __pmd(_PAGE_TABLE | __pa(pte)));
-}
-
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
@@ -18,24 +13,6 @@
set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
}
-#define pmd_pgtable(pmd) pmd_page(pmd)
-
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
-{
- set_pmd(pmd, __pmd(_PAGE_TABLE | (page_to_pfn(pte) << PAGE_SHIFT)));
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
- BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
- free_page((unsigned long)pmd);
-}
-
-static inline pmd_t *pmd_alloc_one (struct mm_struct *mm, unsigned long addr)
-{
- return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
-}
-
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
@@ -47,7 +24,6 @@
free_page((unsigned long)pud);
}
-extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd);
extern void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud);
#endif /* _X86_64_PGALLOC_H */