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x86: move pmd functions into common asm/pgalloc.h

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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>
This commit is contained in:
Jeremy Fitzhardinge
2008-04-24 23:57:30 +02:00
committed by Ingo Molnar
parent 397f687ab7
commit 170fdff705
6 changed files with 41 additions and 71 deletions
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include/asm-x86/pgalloc.h
+33
View File
@@ -40,6 +40,39 @@ static inline void pte_free(struct mm_struct *mm, struct page *pte)
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
include/asm-x86/pgalloc_32.h
-32
View File
@@ -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 */
include/asm-x86/pgalloc_64.h
-24
View File
@@ -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 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
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 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud)
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 */