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Commit 60b3f626 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Ingo Molnar
Browse files

x86/paravirt: make set_pmd operation common 



Remove duplicate set_pmd()s.

Signed-off-by: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 4eed80cd

include/asm-x86/paravirt.h

+20 −23
Original line number Diff line number Diff line
@@ -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 */