From: Jeremy Fitzhardinge Date: Wed, 30 Jan 2008 12:33:15 +0000 (+0100) Subject: x86/paravirt: make set_pte operations common X-Git-Tag: v2.6.25-rc1~1143^2~270 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=4eed80cd7a1668df6ddd884f9474beccc81ef3f7;p=linux-2.6-omap-h63xx.git x86/paravirt: make set_pte operations common Remove duplicate set_pte* operations. PAE still needs to have special variants of some of these because it can't atomically update a 64-bit pte, so there's still some duplication. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 3593211e345..ba1b9433414 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -978,6 +978,66 @@ static inline pgdval_t pgd_val(pgd_t pgd) return ret; } +static inline void set_pte(pte_t *ptep, pte_t pte) +{ + if (sizeof(pteval_t) > sizeof(long)) + PVOP_VCALL3(pv_mmu_ops.set_pte, ptep, + pte.pte, (u64)pte.pte >> 32); + else + PVOP_VCALL2(pv_mmu_ops.set_pte, ptep, + pte.pte); +} + +static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte) +{ + if (sizeof(pteval_t) > sizeof(long)) + /* 5 arg words */ + pv_mmu_ops.set_pte_at(mm, addr, ptep, pte); + else + PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte); +} + +#ifdef CONFIG_X86_PAE +/* Special-case pte-setting operations for PAE, which can't update a + 64-bit pte atomically */ +static inline void set_pte_atomic(pte_t *ptep, pte_t pte) +{ + PVOP_VCALL3(pv_mmu_ops.set_pte_atomic, ptep, + pte.pte, pte.pte >> 32); +} + +static inline void set_pte_present(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte) +{ + /* 5 arg words */ + pv_mmu_ops.set_pte_present(mm, addr, ptep, pte); +} + +static inline void pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) +{ + PVOP_VCALL3(pv_mmu_ops.pte_clear, mm, addr, ptep); +} +#else /* !CONFIG_X86_PAE */ +static inline void set_pte_atomic(pte_t *ptep, pte_t pte) +{ + set_pte(ptep, pte); +} + +static inline void set_pte_present(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte) +{ + set_pte(ptep, pte); +} + +static inline void pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) +{ + set_pte_at(mm, addr, ptep, __pte(0)); +} +#endif /* CONFIG_X86_PAE */ + #if PAGETABLE_LEVELS >= 3 static inline pmd_t __pmd(pmdval_t val) { @@ -1010,31 +1070,6 @@ static inline pmdval_t pmd_val(pmd_t pmd) #ifdef CONFIG_X86_PAE -static inline void set_pte(pte_t *ptep, pte_t pteval) -{ - PVOP_VCALL3(pv_mmu_ops.set_pte, ptep, pteval.pte_low, pteval.pte_high); -} - -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pteval) -{ - /* 5 arg words */ - pv_mmu_ops.set_pte_at(mm, addr, ptep, pteval); -} - -static inline void set_pte_atomic(pte_t *ptep, pte_t pteval) -{ - PVOP_VCALL3(pv_mmu_ops.set_pte_atomic, ptep, - pteval.pte_low, pteval.pte_high); -} - -static inline void set_pte_present(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) -{ - /* 5 arg words */ - pv_mmu_ops.set_pte_present(mm, addr, ptep, pte); -} - static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval) { PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp, @@ -1047,11 +1082,6 @@ static inline void set_pud(pud_t *pudp, pud_t pudval) pudval.pgd.pgd, pudval.pgd.pgd >> 32); } -static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - 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); @@ -1059,17 +1089,6 @@ static inline void pmd_clear(pmd_t *pmdp) #else /* !CONFIG_X86_PAE */ -static inline void set_pte(pte_t *ptep, pte_t pteval) -{ - PVOP_VCALL2(pv_mmu_ops.set_pte, ptep, pteval.pte_low); -} - -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pteval) -{ - PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pteval.pte_low); -} - static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval) { PVOP_VCALL2(pv_mmu_ops.set_pmd, pmdp, pmdval.pud.pgd.pgd); @@ -1080,21 +1099,6 @@ static inline void pmd_clear(pmd_t *pmdp) set_pmd(pmdp, __pmd(0)); } -static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - set_pte_at(mm, addr, ptep, __pte(0)); -} - -static inline void set_pte_atomic(pte_t *ptep, pte_t pte) -{ - set_pte(ptep, pte); -} - -static inline void set_pte_present(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) -{ - set_pte(ptep, pte); -} #endif /* CONFIG_X86_PAE */ /* Lazy mode for batching updates / context switch */