#ifndef _I386_PGTABLE_3LEVEL_H
#define _I386_PGTABLE_3LEVEL_H
+#include <asm-generic/pgtable-nopud.h>
+
/*
* Intel Physical Address Extension (PAE) Mode - three-level page
* tables on PPro+ CPUs.
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %p(%016Lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
-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 pud_none(pud) 0
+#define pud_bad(pud) 0
+#define pud_present(pud) 1
/*
* Is the pte executable?
smp_wmb();
ptep->pte_low = pte.pte_low;
}
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
#define __HAVE_ARCH_SET_PTE_ATOMIC
#define set_pte_atomic(pteptr,pteval) \
set_64bit((unsigned long long *)(pteptr),pte_val(pteval))
#define set_pmd(pmdptr,pmdval) \
set_64bit((unsigned long long *)(pmdptr),pmd_val(pmdval))
-#define set_pgd(pgdptr,pgdval) \
- set_64bit((unsigned long long *)(pgdptr),pgd_val(pgdval))
+#define set_pud(pudptr,pudval) \
+ (*(pudptr) = (pudval))
/*
* Pentium-II erratum A13: in PAE mode we explicitly have to flush
* We do not let the generic code free and clear pgd entries due to
* this erratum.
*/
-static inline void pgd_clear (pgd_t * pgd) { }
+static inline void pud_clear (pud_t * pud) { }
+
+#define pud_page(pud) \
+((struct page *) __va(pud_val(pud) & PAGE_MASK))
+
+#define pud_page_kernel(pud) \
+((unsigned long) __va(pud_val(pud) & PAGE_MASK))
-#define pgd_page(pgd) \
-((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
/* Find an entry in the second-level page table.. */
-#define pmd_offset(dir, address) ((pmd_t *) pgd_page(*(dir)) + \
+#define pmd_offset(pud, address) ((pmd_t *) pud_page(*(pud)) + \
pmd_index(address))
-static inline pte_t ptep_get_and_clear(pte_t *ptep)
+/*
+ * For PTEs and PDEs, we must clear the P-bit first when clearing a page table
+ * entry, so clear the bottom half first and enforce ordering with a compiler
+ * barrier.
+ */
+static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+ ptep->pte_low = 0;
+ smp_wmb();
+ ptep->pte_high = 0;
+}
+
+static inline void pmd_clear(pmd_t *pmd)
+{
+ u32 *tmp = (u32 *)pmd;
+ *tmp = 0;
+ smp_wmb();
+ *(tmp + 1) = 0;
+}
+
+static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
pte_t res;
#define __pte_to_swp_entry(pte) ((swp_entry_t){ (pte).pte_high })
#define __swp_entry_to_pte(x) ((pte_t){ 0, (x).val })
+#define __pmd_free_tlb(tlb, x) do { } while (0)
+
+#define vmalloc_sync_all() ((void)0)
+
#endif /* _I386_PGTABLE_3LEVEL_H */