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- /*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Copyright 2003 PathScale, Inc.
- * Derived from include/asm-i386/pgtable.h
- * Licensed under the GPL
- */
- #ifndef __UM_PGTABLE_2LEVEL_H
- #define __UM_PGTABLE_2LEVEL_H
- #include <asm-generic/pgtable-nopmd.h>
- /* PGDIR_SHIFT determines what a third-level page table entry can map */
- #define PGDIR_SHIFT 22
- #define PGDIR_SIZE (1UL << PGDIR_SHIFT)
- #define PGDIR_MASK (~(PGDIR_SIZE-1))
- /*
- * entries per page directory level: the i386 is two-level, so
- * we don't really have any PMD directory physically.
- */
- #define PTRS_PER_PTE 1024
- #define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
- #define PTRS_PER_PGD 1024
- #define FIRST_USER_ADDRESS 0UL
- #define pte_ERROR(e) \
- printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \
- pte_val(e))
- #define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \
- pgd_val(e))
- static inline int pgd_newpage(pgd_t pgd) { return 0; }
- static inline void pgd_mkuptodate(pgd_t pgd) { }
- #define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
- #define pte_pfn(x) phys_to_pfn(pte_val(x))
- #define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
- #define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
- #endif
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