From 8ede0bdb63305d3353efd97e9af6210afb05734e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 19:13:17 -0400 Subject: x86, um: initial part of asm-um move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- include/asm-um/pgtable-3level.h | 146 ---------------------------------------- 1 file changed, 146 deletions(-) delete mode 100644 include/asm-um/pgtable-3level.h (limited to 'include/asm-um/pgtable-3level.h') diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h deleted file mode 100644 index 0446f456b428..000000000000 --- 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 - -/* 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: - */ -- cgit v1.2.2