diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-01-30 15:32:58 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 15:32:58 +0300 |
| commit | 4891645e764d2e181b834509a689fcd12e890c10 (patch) | |
| tree | f347227c2d5a5b112bca8fe76b149ccc5157ef84 /include/asm-x86/pgtable-2level.h | |
| parent | 8405b122ad0dd75354b3bfed4de9a96514fd40cb (diff) | |
| download | linux-4891645e764d2e181b834509a689fcd12e890c10.tar.xz | |
x86: unify paravirt pagetable accessors
Put all the defines for mapping pagetable operations to their native
versions (for the non-paravirt case) into one place. Make the
corresponding changes to paravirt.h.
The tricky part here is that when a pagetable entry can't be updated
atomically (ie, 32-bit PAE), we need special handlers for pte_clear,
set_pte_atomic and set_pte_present. However, the other two modes
don't need special handling for these, and can use a common
set_pte(_at) path.
[ mingo@elte.hu: fixes ]
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/pgtable-2level.h')
| -rw-r--r-- | include/asm-x86/pgtable-2level.h | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h index 65cdc8f9e3b3..ce486bdbbbb7 100644 --- a/include/asm-x86/pgtable-2level.h +++ b/include/asm-x86/pgtable-2level.h @@ -15,29 +15,31 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte) { *ptep = pte; } -static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep , pte_t pte) -{ - native_set_pte(ptep, pte); -} + static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) { *pmdp = pmd; } -#ifndef CONFIG_PARAVIRT -#define set_pte(pteptr, pteval) native_set_pte(pteptr, pteval) -#define set_pte_at(mm,addr,ptep,pteval) native_set_pte_at(mm, addr, ptep, pteval) -#define set_pmd(pmdptr, pmdval) native_set_pmd(pmdptr, pmdval) -#endif -#define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval) -#define set_pte_present(mm,addr,ptep,pteval) set_pte_at(mm,addr,ptep,pteval) +static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) +{ + native_set_pte(ptep, pte); +} + +static inline void native_set_pte_present(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte) +{ + native_set_pte(ptep, pte); +} -#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) +static inline void native_pmd_clear(pmd_t *pmdp) +{ + native_set_pmd(pmdp, __pmd(0)); +} static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *xp) { - *xp = __pte(0); + *xp = native_make_pte(0); } #ifdef CONFIG_SMP |