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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:20:03 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:20:03 +0200
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86_64/pgtable.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86_64/pgtable.h')
-rw-r--r--include/asm-x86_64/pgtable.h432
1 files changed, 0 insertions, 432 deletions
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
deleted file mode 100644
index 57dd6b3107e..00000000000
--- a/include/asm-x86_64/pgtable.h
+++ /dev/null
@@ -1,432 +0,0 @@
-#ifndef _X86_64_PGTABLE_H
-#define _X86_64_PGTABLE_H
-
-#include <linux/const.h>
-#ifndef __ASSEMBLY__
-
-/*
- * This file contains the functions and defines necessary to modify and use
- * the x86-64 page table tree.
- */
-#include <asm/processor.h>
-#include <asm/bitops.h>
-#include <linux/threads.h>
-#include <asm/pda.h>
-
-extern pud_t level3_kernel_pgt[512];
-extern pud_t level3_ident_pgt[512];
-extern pmd_t level2_kernel_pgt[512];
-extern pgd_t init_level4_pgt[];
-extern unsigned long __supported_pte_mask;
-
-#define swapper_pg_dir init_level4_pgt
-
-extern void paging_init(void);
-extern void clear_kernel_mapping(unsigned long addr, unsigned long size);
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern unsigned long empty_zero_page[PAGE_SIZE/sizeof(unsigned long)];
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * PGDIR_SHIFT determines what a top-level page table entry can map
- */
-#define PGDIR_SHIFT 39
-#define PTRS_PER_PGD 512
-
-/*
- * 3rd level page
- */
-#define PUD_SHIFT 30
-#define PTRS_PER_PUD 512
-
-/*
- * PMD_SHIFT determines the size of the area a middle-level
- * page table can map
- */
-#define PMD_SHIFT 21
-#define PTRS_PER_PMD 512
-
-/*
- * entries per page directory level
- */
-#define PTRS_PER_PTE 512
-
-#ifndef __ASSEMBLY__
-
-#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 pud_ERROR(e) \
- printk("%s:%d: bad pud %p(%016lx).\n", __FILE__, __LINE__, &(e), pud_val(e))
-#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %p(%016lx).\n", __FILE__, __LINE__, &(e), pgd_val(e))
-
-#define pgd_none(x) (!pgd_val(x))
-#define pud_none(x) (!pud_val(x))
-
-static inline void set_pte(pte_t *dst, pte_t val)
-{
- pte_val(*dst) = pte_val(val);
-}
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-
-static inline void set_pmd(pmd_t *dst, pmd_t val)
-{
- pmd_val(*dst) = pmd_val(val);
-}
-
-static inline void set_pud(pud_t *dst, pud_t val)
-{
- pud_val(*dst) = pud_val(val);
-}
-
-static inline void pud_clear (pud_t *pud)
-{
- set_pud(pud, __pud(0));
-}
-
-static inline void set_pgd(pgd_t *dst, pgd_t val)
-{
- pgd_val(*dst) = pgd_val(val);
-}
-
-static inline void pgd_clear (pgd_t * pgd)
-{
- set_pgd(pgd, __pgd(0));
-}
-
-#define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte, 0))
-
-struct mm_struct;
-
-static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full)
-{
- pte_t pte;
- if (full) {
- pte = *ptep;
- *ptep = __pte(0);
- } else {
- pte = ptep_get_and_clear(mm, addr, ptep);
- }
- return pte;
-}
-
-#define pte_same(a, b) ((a).pte == (b).pte)
-
-#define pte_pgprot(a) (__pgprot((a).pte & ~PHYSICAL_PAGE_MASK))
-
-#endif /* !__ASSEMBLY__ */
-
-#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT)
-#define PUD_MASK (~(PUD_SIZE-1))
-#define PGDIR_SIZE (_AC(1,UL) << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-#define USER_PTRS_PER_PGD ((TASK_SIZE-1)/PGDIR_SIZE+1)
-#define FIRST_USER_ADDRESS 0
-
-#define MAXMEM _AC(0x3fffffffffff, UL)
-#define VMALLOC_START _AC(0xffffc20000000000, UL)
-#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
-#define MODULES_VADDR _AC(0xffffffff88000000, UL)
-#define MODULES_END _AC(0xfffffffffff00000, UL)
-#define MODULES_LEN (MODULES_END - MODULES_VADDR)
-
-#define _PAGE_BIT_PRESENT 0
-#define _PAGE_BIT_RW 1
-#define _PAGE_BIT_USER 2
-#define _PAGE_BIT_PWT 3
-#define _PAGE_BIT_PCD 4
-#define _PAGE_BIT_ACCESSED 5
-#define _PAGE_BIT_DIRTY 6
-#define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
-#define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
-#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
-
-#define _PAGE_PRESENT 0x001
-#define _PAGE_RW 0x002
-#define _PAGE_USER 0x004
-#define _PAGE_PWT 0x008
-#define _PAGE_PCD 0x010
-#define _PAGE_ACCESSED 0x020
-#define _PAGE_DIRTY 0x040
-#define _PAGE_PSE 0x080 /* 2MB page */
-#define _PAGE_FILE 0x040 /* nonlinear file mapping, saved PTE; unset:swap */
-#define _PAGE_GLOBAL 0x100 /* Global TLB entry */
-
-#define _PAGE_PROTNONE 0x080 /* If not present */
-#define _PAGE_NX (_AC(1,UL)<<_PAGE_BIT_NX)
-
-#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
-#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_COPY PAGE_COPY_NOEXEC
-#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
-#define __PAGE_KERNEL \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_NX)
-#define __PAGE_KERNEL_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
-#define __PAGE_KERNEL_NOCACHE \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_PCD | _PAGE_ACCESSED | _PAGE_NX)
-#define __PAGE_KERNEL_RO \
- (_PAGE_PRESENT | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_NX)
-#define __PAGE_KERNEL_VSYSCALL \
- (_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
-#define __PAGE_KERNEL_VSYSCALL_NOCACHE \
- (_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_PCD)
-#define __PAGE_KERNEL_LARGE \
- (__PAGE_KERNEL | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_EXEC \
- (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-
-#define MAKE_GLOBAL(x) __pgprot((x) | _PAGE_GLOBAL)
-
-#define PAGE_KERNEL MAKE_GLOBAL(__PAGE_KERNEL)
-#define PAGE_KERNEL_EXEC MAKE_GLOBAL(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RO MAKE_GLOBAL(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_VSYSCALL32 __pgprot(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_VSYSCALL MAKE_GLOBAL(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_LARGE MAKE_GLOBAL(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_VSYSCALL_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_VSYSCALL_NOCACHE)
-
-/* xwr */
-#define __P000 PAGE_NONE
-#define __P001 PAGE_READONLY
-#define __P010 PAGE_COPY
-#define __P011 PAGE_COPY
-#define __P100 PAGE_READONLY_EXEC
-#define __P101 PAGE_READONLY_EXEC
-#define __P110 PAGE_COPY_EXEC
-#define __P111 PAGE_COPY_EXEC
-
-#define __S000 PAGE_NONE
-#define __S001 PAGE_READONLY
-#define __S010 PAGE_SHARED
-#define __S011 PAGE_SHARED
-#define __S100 PAGE_READONLY_EXEC
-#define __S101 PAGE_READONLY_EXEC
-#define __S110 PAGE_SHARED_EXEC
-#define __S111 PAGE_SHARED_EXEC
-
-#ifndef __ASSEMBLY__
-
-static inline unsigned long pgd_bad(pgd_t pgd)
-{
- return pgd_val(pgd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
-}
-
-static inline unsigned long pud_bad(pud_t pud)
-{
- return pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
-}
-
-static inline unsigned long pmd_bad(pmd_t pmd)
-{
- return pmd_val(pmd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
-}
-
-#define pte_none(x) (!pte_val(x))
-#define pte_present(x) (pte_val(x) & (_PAGE_PRESENT | _PAGE_PROTNONE))
-#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
-
-#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) /* FIXME: is this
- right? */
-#define pte_page(x) pfn_to_page(pte_pfn(x))
-#define pte_pfn(x) ((pte_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT)
-
-static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
-{
- pte_t pte;
- pte_val(pte) = (page_nr << PAGE_SHIFT);
- pte_val(pte) |= pgprot_val(pgprot);
- pte_val(pte) &= __supported_pte_mask;
- return pte;
-}
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT)
-static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
-static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; }
-static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
-static inline int pte_huge(pte_t pte) { return pte_val(pte) & _PAGE_PSE; }
-
-static inline pte_t pte_mkclean(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; }
-static inline pte_t pte_mkold(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); return pte; }
-static inline pte_t pte_wrprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_RW)); return pte; }
-static inline pte_t pte_mkexec(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_NX)); return pte; }
-static inline pte_t pte_mkdirty(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; }
-static inline pte_t pte_mkyoung(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; }
-static inline pte_t pte_mkwrite(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); return pte; }
-static inline pte_t pte_mkhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_PSE)); return pte; }
-static inline pte_t pte_clrhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_PSE)); return pte; }
-
-struct vm_area_struct;
-
-static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
-{
- if (!pte_young(*ptep))
- return 0;
- return test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte);
-}
-
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
-{
- clear_bit(_PAGE_BIT_RW, &ptep->pte);
-}
-
-/*
- * Macro to mark a page protection value as "uncacheable".
- */
-#define pgprot_noncached(prot) (__pgprot(pgprot_val(prot) | _PAGE_PCD | _PAGE_PWT))
-
-static inline int pmd_large(pmd_t pte) {
- return (pmd_val(pte) & __LARGE_PTE) == __LARGE_PTE;
-}
-
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-
-/*
- * Level 4 access.
- */
-#define pgd_page_vaddr(pgd) ((unsigned long) __va((unsigned long)pgd_val(pgd) & PTE_MASK))
-#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT))
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
-#define pgd_offset_k(address) (init_level4_pgt + pgd_index(address))
-#define pgd_present(pgd) (pgd_val(pgd) & _PAGE_PRESENT)
-#define mk_kernel_pgd(address) ((pgd_t){ (address) | _KERNPG_TABLE })
-
-/* PUD - Level3 access */
-/* to find an entry in a page-table-directory. */
-#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PHYSICAL_PAGE_MASK))
-#define pud_page(pud) (pfn_to_page(pud_val(pud) >> PAGE_SHIFT))
-#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
-#define pud_offset(pgd, address) ((pud_t *) pgd_page_vaddr(*(pgd)) + pud_index(address))
-#define pud_present(pud) (pud_val(pud) & _PAGE_PRESENT)
-
-/* PMD - Level 2 access */
-#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PTE_MASK))
-#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
-
-#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-#define pmd_offset(dir, address) ((pmd_t *) pud_page_vaddr(*(dir)) + \
- pmd_index(address))
-#define pmd_none(x) (!pmd_val(x))
-#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
-#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
-#define pfn_pmd(nr,prot) (__pmd(((nr) << PAGE_SHIFT) | pgprot_val(prot)))
-#define pmd_pfn(x) ((pmd_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT)
-
-#define pte_to_pgoff(pte) ((pte_val(pte) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)
-#define pgoff_to_pte(off) ((pte_t) { ((off) << PAGE_SHIFT) | _PAGE_FILE })
-#define PTE_FILE_MAX_BITS __PHYSICAL_MASK_SHIFT
-
-/* PTE - Level 1 access. */
-
-/* page, protection -> pte */
-#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
-#define mk_pte_huge(entry) (pte_val(entry) |= _PAGE_PRESENT | _PAGE_PSE)
-
-/* Change flags of a PTE */
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{
- pte_val(pte) &= _PAGE_CHG_MASK;
- pte_val(pte) |= pgprot_val(newprot);
- pte_val(pte) &= __supported_pte_mask;
- return pte;
-}
-
-#define pte_index(address) \
- (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \
- pte_index(address))
-
-/* x86-64 always has all page tables mapped. */
-#define pte_offset_map(dir,address) pte_offset_kernel(dir,address)
-#define pte_offset_map_nested(dir,address) pte_offset_kernel(dir,address)
-#define pte_unmap(pte) /* NOP */
-#define pte_unmap_nested(pte) /* NOP */
-
-#define update_mmu_cache(vma,address,pte) do { } while (0)
-
-/* We only update the dirty/accessed state if we set
- * the dirty bit by hand in the kernel, since the hardware
- * will do the accessed bit for us, and we don't want to
- * race with other CPU's that might be updating the dirty
- * bit at the same time. */
-#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
-#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-({ \
- int __changed = !pte_same(*(__ptep), __entry); \
- if (__changed && __dirty) { \
- set_pte(__ptep, __entry); \
- flush_tlb_page(__vma, __address); \
- } \
- __changed; \
-})
-
-/* Encode and de-code a swap entry */
-#define __swp_type(x) (((x).val >> 1) & 0x3f)
-#define __swp_offset(x) ((x).val >> 8)
-#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 1) | ((offset) << 8) })
-#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-
-extern spinlock_t pgd_lock;
-extern struct list_head pgd_list;
-
-extern int kern_addr_valid(unsigned long addr);
-
-pte_t *lookup_address(unsigned long addr);
-
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
- remap_pfn_range(vma, vaddr, pfn, size, prot)
-
-#define HAVE_ARCH_UNMAPPED_AREA
-
-#define pgtable_cache_init() do { } while (0)
-#define check_pgt_cache() do { } while (0)
-
-#define PAGE_AGP PAGE_KERNEL_NOCACHE
-#define HAVE_PAGE_AGP 1
-
-/* fs/proc/kcore.c */
-#define kc_vaddr_to_offset(v) ((v) & __VIRTUAL_MASK)
-#define kc_offset_to_vaddr(o) \
- (((o) & (1UL << (__VIRTUAL_MASK_SHIFT-1))) ? ((o) | (~__VIRTUAL_MASK)) : (o))
-
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
-#define __HAVE_ARCH_PTEP_SET_WRPROTECT
-#define __HAVE_ARCH_PTE_SAME
-#include <asm-generic/pgtable.h>
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _X86_64_PGTABLE_H */