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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-01-30 13:32:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:32:57 +0100 |
| commit | c8e5393ab38564d2f45b560a2f95bc8f9ff6f823 (patch) | |
| tree | 2976d59bb412786712bddec0eedf82e1db58401d /include/asm-x86/page_32.h | |
| parent | x86: fix pte_modify() bug (diff) | |
| download | linux-c8e5393ab38564d2f45b560a2f95bc8f9ff6f823.tar.xz linux-c8e5393ab38564d2f45b560a2f95bc8f9ff6f823.zip | |
x86: page.h: make pte_t a union to always include
Make sure pte_t, whatever its definition, has a pte element with type
pteval_t. This allows common code to access it without needing to be
specifically parameterised on what pagetable mode we're compiling for.
For 32-bit, this means that pte_t becomes a union with "pte" and "{
pte_low, pte_high }" (PAE) or just "pte_low" (non-PAE).
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/page_32.h')
| -rw-r--r-- | include/asm-x86/page_32.h | 30 |
1 files changed, 7 insertions, 23 deletions
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h index e424bef4395a..11c4b39cada1 100644 --- a/include/asm-x86/page_32.h +++ b/include/asm-x86/page_32.h @@ -26,18 +26,12 @@ typedef u64 pgdval_t; typedef u64 pgprotval_t; typedef u64 phys_addr_t; -typedef struct { unsigned long pte_low, pte_high; } pte_t; - -static inline unsigned long long native_pte_val(pte_t pte) -{ - return pte.pte_low | ((unsigned long long)pte.pte_high << 32); -} - -static inline pte_t native_make_pte(unsigned long long val) -{ - return (pte_t) { .pte_low = val, .pte_high = (val >> 32) } ; -} - +typedef union { + struct { + unsigned long pte_low, pte_high; + }; + pteval_t pte; +} pte_t; #endif /* __ASSEMBLY__ */ #else /* !CONFIG_X86_PAE */ @@ -53,19 +47,9 @@ typedef unsigned long pgdval_t; typedef unsigned long pgprotval_t; typedef unsigned long phys_addr_t; -typedef struct { pteval_t pte_low; } pte_t; +typedef union { pteval_t pte, pte_low; } pte_t; typedef pte_t boot_pte_t; -static inline unsigned long native_pte_val(pte_t pte) -{ - return pte.pte_low; -} - -static inline pte_t native_make_pte(unsigned long val) -{ - return (pte_t) { .pte_low = val }; -} - #endif /* __ASSEMBLY__ */ #endif /* CONFIG_X86_PAE */ |