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x86: move pgalloc pud and pgd operations into common place

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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 2008-03-17 16:36:59 -07:00 committed by Ingo Molnar
parent 170fdff705
commit 5a5f8f4224
5 changed files with 37 additions and 49 deletions
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5
arch/x86/mm/init_64.c
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@ -662,11 +662,6 @@ int memory_add_physaddr_to_nid(u64 start)
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
{
tlb_remove_page(tlb, virt_to_page(pud));
}
#endif /* CONFIG_MEMORY_HOTPLUG */
static struct kcore_list kcore_mem, kcore_vmalloc, kcore_kernel,

7
arch/x86/mm/pgtable.c
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@ -34,6 +34,13 @@ void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
tlb_remove_page(tlb, virt_to_page(pmd));
}
#if PAGETABLE_LEVELS > 3
void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
{
tlb_remove_page(tlb, virt_to_page(pud));
}
#endif /* PAGETABLE_LEVELS > 3 */
#endif /* PAGETABLE_LEVELS > 2 */
#ifdef CONFIG_X86_64

36
include/asm-x86/pgalloc.h
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@ -71,12 +71,36 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
}
extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd);
#ifdef CONFIG_X86_PAE
extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
#else /* !CONFIG_X86_PAE */
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
paravirt_alloc_pd(mm, __pa(pmd) >> PAGE_SHIFT);
set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
}
#endif /* CONFIG_X86_PAE */
#if PAGETABLE_LEVELS > 3
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
{
set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
}
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
{
BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
free_page((unsigned long)pud);
}
extern void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud);
#endif /* PAGETABLE_LEVELS > 3 */
#endif /* PAGETABLE_LEVELS > 2 */
#ifdef CONFIG_X86_32
# include "pgalloc_32.h"
#else
# include "pgalloc_64.h"
#endif
#endif /* _ASM_X86_PGALLOC_H */

9
include/asm-x86/pgalloc_32.h
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@ -1,9 +0,0 @@
#ifndef _I386_PGALLOC_H
#define _I386_PGALLOC_H
#ifdef CONFIG_X86_PAE
extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
#endif /* CONFIG_X86_PAE */
#endif /* _I386_PGALLOC_H */

29
include/asm-x86/pgalloc_64.h
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@ -1,29 +0,0 @@
#ifndef _X86_64_PGALLOC_H
#define _X86_64_PGALLOC_H
#include <asm/pda.h>
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
}
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
{
set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
}
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
{
BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
free_page((unsigned long)pud);
}
extern void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud);
#endif /* _X86_64_PGALLOC_H */