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x86/paravirt: make set_pmd operation common 

Remove duplicate set_pmd()s.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jeremy Fitzhardinge 2008-01-30 13:33:15 +01:00 committed by Ingo Molnar
parent 4eed80cd7a
commit 60b3f626de
1 changed files with 20 additions and 23 deletions
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43
include/asm-x86/paravirt.h
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@ -998,6 +998,16 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
}
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
{
pmdval_t val = native_pmd_val(pmd);
if (sizeof(pmdval_t) > sizeof(long))
PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp, val, (u64)val >> 32);
else
PVOP_VCALL2(pv_mmu_ops.set_pmd, pmdp, val);
}
#ifdef CONFIG_X86_PAE
/* Special-case pte-setting operations for PAE, which can't update a
64-bit pte atomically */
@ -1019,6 +1029,11 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
{
PVOP_VCALL3(pv_mmu_ops.pte_clear, mm, addr, ptep);
}
static inline void pmd_clear(pmd_t *pmdp)
{
PVOP_VCALL1(pv_mmu_ops.pmd_clear, pmdp);
}
#else /* !CONFIG_X86_PAE */
static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
{
@ -1036,6 +1051,11 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
{
set_pte_at(mm, addr, ptep, __pte(0));
}
static inline void pmd_clear(pmd_t *pmdp)
{
set_pmd(pmdp, __pmd(0));
}
#endif /* CONFIG_X86_PAE */
#if PAGETABLE_LEVELS >= 3
@ -1070,35 +1090,12 @@ static inline pmdval_t pmd_val(pmd_t pmd)
#ifdef CONFIG_X86_PAE
static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp,
pmdval.pmd, pmdval.pmd >> 32);
}
static inline void set_pud(pud_t *pudp, pud_t pudval)
{
PVOP_VCALL3(pv_mmu_ops.set_pud, pudp,
pudval.pgd.pgd, pudval.pgd.pgd >> 32);
}
static inline void pmd_clear(pmd_t *pmdp)
{
PVOP_VCALL1(pv_mmu_ops.pmd_clear, pmdp);
}
#else /* !CONFIG_X86_PAE */
static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
PVOP_VCALL2(pv_mmu_ops.set_pmd, pmdp, pmdval.pud.pgd.pgd);
}
static inline void pmd_clear(pmd_t *pmdp)
{
set_pmd(pmdp, __pmd(0));
}
#endif /* CONFIG_X86_PAE */
/* Lazy mode for batching updates / context switch */