Messages in this thread Patch in this message | | | Subject | [PATCH 34 of 36] x86: add and use pgd/pud/pmd_flags | Date | Thu, 05 Feb 2009 11:31:16 -0800 | From | Jeremy Fitzhardinge <> |
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Add pgd/pud/pmd_flags which are analogous to pte_flags, and use them where-ever we only care about testing the flags portions of the respective entries.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> --- arch/x86/include/asm/page.h | 15 +++++++++++++++ arch/x86/include/asm/pgtable.h | 16 ++++++++-------- 2 files changed, 23 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h --- a/arch/x86/include/asm/page.h +++ b/arch/x86/include/asm/page.h @@ -95,6 +95,11 @@ return pgd.pgd; } +static inline pgdval_t pgd_flags(pgd_t pgd) +{ + return native_pgd_val(pgd) & PTE_FLAGS_MASK; +} + #if PAGETABLE_LEVELS >= 3 #if PAGETABLE_LEVELS == 4 typedef struct { pudval_t pud; } pud_t; @@ -117,6 +122,11 @@ } #endif /* PAGETABLE_LEVELS == 4 */ +static inline pudval_t pud_flags(pud_t pud) +{ + return native_pud_val(pud) & PTE_FLAGS_MASK; +} + typedef struct { pmdval_t pmd; } pmd_t; static inline pmd_t native_make_pmd(pmdval_t val) @@ -128,6 +138,11 @@ { return pmd.pmd; } + +static inline pmdval_t pmd_flags(pmd_t pmd) +{ + return native_pmd_val(pmd) & PTE_FLAGS_MASK; +} #else /* PAGETABLE_LEVELS == 2 */ #include <asm-generic/pgtable-nopmd.h> diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -241,7 +241,7 @@ static inline int pmd_large(pmd_t pte) { - return (pmd_val(pte) & (_PAGE_PSE | _PAGE_PRESENT)) == + return (pmd_flags(pte) & (_PAGE_PSE | _PAGE_PRESENT)) == (_PAGE_PSE | _PAGE_PRESENT); } @@ -496,7 +496,7 @@ static inline int pmd_present(pmd_t pmd) { - return pmd_val(pmd) & _PAGE_PRESENT; + return pmd_flags(pmd) & _PAGE_PRESENT; } static inline int pmd_none(pmd_t pmd) @@ -554,7 +554,7 @@ static inline int pmd_bad(pmd_t pmd) { - return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; + return (pmd_flags(pmd) & ~_PAGE_USER) != _KERNPG_TABLE; } static inline unsigned long pages_to_mb(unsigned long npg) @@ -573,7 +573,7 @@ static inline int pud_present(pud_t pud) { - return pud_val(pud) & _PAGE_PRESENT; + return pud_flags(pud) & _PAGE_PRESENT; } static inline unsigned long pud_page_vaddr(pud_t pud) @@ -599,20 +599,20 @@ static inline int pud_large(pud_t pud) { - return (pud_val(pud) & (_PAGE_PSE | _PAGE_PRESENT)) == + return (pud_flags(pud) & (_PAGE_PSE | _PAGE_PRESENT)) == (_PAGE_PSE | _PAGE_PRESENT); } static inline int pud_bad(pud_t pud) { - return (pud_val(pud) & ~(PTE_PFN_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0; + return (pud_flags(pud) & ~(_KERNPG_TABLE | _PAGE_USER)) != 0; } #endif /* PAGETABLE_LEVELS > 2 */ #if PAGETABLE_LEVELS > 3 static inline int pgd_present(pgd_t pgd) { - return pgd_val(pgd) & _PAGE_PRESENT; + return pgd_flags(pgd) & _PAGE_PRESENT; } static inline unsigned long pgd_page_vaddr(pgd_t pgd) @@ -638,7 +638,7 @@ static inline int pgd_bad(pgd_t pgd) { - return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; + return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE; } static inline int pgd_none(pgd_t pgd)
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