X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-i386%2Fpgtable-2level.h;h=38c3fcc0676d9810c1f1ca4d168bdb519c6e0438;hb=refs%2Fheads%2Fvserver;hp=58867b62f47b4e79d42925e4da7d47775d1a397a;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h index 58867b62f..38c3fcc06 100644 --- a/include/asm-i386/pgtable-2level.h +++ b/include/asm-i386/pgtable-2level.h @@ -3,44 +3,28 @@ #define pte_ERROR(e) \ printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low) -#define pmd_ERROR(e) \ - printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e)) #define pgd_ERROR(e) \ printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) -/* - * The "pgd_xxx()" functions here are trivial for a folded two-level - * setup: the pgd is never bad, and a pmd always exists (as it's folded - * into the pgd entry) - */ -static inline int pgd_none(pgd_t pgd) { return 0; } -static inline int pgd_bad(pgd_t pgd) { return 0; } -static inline int pgd_present(pgd_t pgd) { return 1; } -#define pgd_clear(xp) do { } while (0) - /* * Certain architectures need to do special things when PTEs * within a page table are directly modified. Thus, the following * hook is made available. */ +#ifndef CONFIG_PARAVIRT #define set_pte(pteptr, pteval) (*(pteptr) = pteval) +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) +#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) +#endif + #define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval) -/* - * (pmds are folded into pgds so this doesn't get actually called, - * but the define is needed for a generic inline function.) - */ -#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) -#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval) +#define set_pte_present(mm,addr,ptep,pteval) set_pte_at(mm,addr,ptep,pteval) -#define pgd_page(pgd) \ -((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) +#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) +#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) + +#define raw_ptep_get_and_clear(xp) __pte(xchg(&(xp)->pte_low, 0)) -static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) -{ - return (pmd_t *) dir; -} -#define ptep_get_and_clear(xp) __pte(xchg(&(xp)->pte_low, 0)) -#define pte_same(a, b) ((a).pte_low == (b).pte_low) #define pte_page(x) pfn_to_page(pte_pfn(x)) #define pte_none(x) (!(x).pte_low) #define pte_pfn(x) ((unsigned long)(((x).pte_low >> PAGE_SHIFT))) @@ -82,4 +66,6 @@ static inline int pte_exec_kernel(pte_t pte) #define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) +void vmalloc_sync_all(void); + #endif /* _I386_PGTABLE_2LEVEL_H */