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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-17 19:13:17 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-22 22:55:19 -0700
commit8ede0bdb63305d3353efd97e9af6210afb05734e (patch)
treea9500a323d0a2dcadca43c23b5c20186f6d9b724 /include/asm-um/pgtable-3level.h
parent8569c9140bd41089f9b6be8837ca421102714a90 (diff)
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x86, um: initial part of asm-um move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/asm-um/pgtable-3level.h')
-rw-r--r--include/asm-um/pgtable-3level.h146
1 files changed, 0 insertions, 146 deletions
diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h
deleted file mode 100644
index 0446f456b42..00000000000
--- a/include/asm-um/pgtable-3level.h
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Copyright 2003 PathScale Inc
- * Derived from include/asm-i386/pgtable.h
- * Licensed under the GPL
- */
-
-#ifndef __UM_PGTABLE_3LEVEL_H
-#define __UM_PGTABLE_3LEVEL_H
-
-#include <asm-generic/pgtable-nopud.h>
-
-/* PGDIR_SHIFT determines what a third-level page table entry can map */
-
-#ifdef CONFIG_64BIT
-#define PGDIR_SHIFT 30
-#else
-#define PGDIR_SHIFT 31
-#endif
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-/* PMD_SHIFT determines the size of the area a second-level page table can
- * map
- */
-
-#define PMD_SHIFT 21
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-
-/*
- * entries per page directory level
- */
-
-#define PTRS_PER_PTE 512
-#ifdef CONFIG_64BIT
-#define PTRS_PER_PMD 512
-#define PTRS_PER_PGD 512
-#else
-#define PTRS_PER_PMD 1024
-#define PTRS_PER_PGD 1024
-#endif
-
-#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
-#define FIRST_USER_ADDRESS 0
-
-#define pte_ERROR(e) \
- printk("%s:%d: bad pte %p(%016lx).\n", __FILE__, __LINE__, &(e), \
- pte_val(e))
-#define pmd_ERROR(e) \
- printk("%s:%d: bad pmd %p(%016lx).\n", __FILE__, __LINE__, &(e), \
- pmd_val(e))
-#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %p(%016lx).\n", __FILE__, __LINE__, &(e), \
- pgd_val(e))
-
-#define pud_none(x) (!(pud_val(x) & ~_PAGE_NEWPAGE))
-#define pud_bad(x) ((pud_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
-#define pud_present(x) (pud_val(x) & _PAGE_PRESENT)
-#define pud_populate(mm, pud, pmd) \
- set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
-
-#ifdef CONFIG_64BIT
-#define set_pud(pudptr, pudval) set_64bit((phys_t *) (pudptr), pud_val(pudval))
-#else
-#define set_pud(pudptr, pudval) (*(pudptr) = (pudval))
-#endif
-
-static inline int pgd_newpage(pgd_t pgd)
-{
- return(pgd_val(pgd) & _PAGE_NEWPAGE);
-}
-
-static inline void pgd_mkuptodate(pgd_t pgd) { pgd_val(pgd) &= ~_PAGE_NEWPAGE; }
-
-#ifdef CONFIG_64BIT
-#define set_pmd(pmdptr, pmdval) set_64bit((phys_t *) (pmdptr), pmd_val(pmdval))
-#else
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
-#endif
-
-struct mm_struct;
-extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address);
-
-static inline void pud_clear (pud_t *pud)
-{
- set_pud(pud, __pud(_PAGE_NEWPAGE));
-}
-
-#define pud_page(pud) phys_to_page(pud_val(pud) & PAGE_MASK)
-#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PAGE_MASK))
-
-/* Find an entry in the second-level page table.. */
-#define pmd_offset(pud, address) ((pmd_t *) pud_page_vaddr(*(pud)) + \
- pmd_index(address))
-
-static inline unsigned long pte_pfn(pte_t pte)
-{
- return phys_to_pfn(pte_val(pte));
-}
-
-static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot)
-{
- pte_t pte;
- phys_t phys = pfn_to_phys(page_nr);
-
- pte_set_val(pte, phys, pgprot);
- return pte;
-}
-
-static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot)
-{
- return __pmd((page_nr << PAGE_SHIFT) | pgprot_val(pgprot));
-}
-
-/*
- * Bits 0 through 3 are taken in the low part of the pte,
- * put the 32 bits of offset into the high part.
- */
-#define PTE_FILE_MAX_BITS 32
-
-#ifdef CONFIG_64BIT
-
-#define pte_to_pgoff(p) ((p).pte >> 32)
-
-#define pgoff_to_pte(off) ((pte_t) { ((off) << 32) | _PAGE_FILE })
-
-#else
-
-#define pte_to_pgoff(pte) ((pte).pte_high)
-
-#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) })
-
-#endif
-
-#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */