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-rw-r--r--include/asm-x86/pgtable.h561
1 files changed, 0 insertions, 561 deletions
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
deleted file mode 100644
index 88a53b1a17f0..000000000000
--- a/include/asm-x86/pgtable.h
+++ /dev/null
@@ -1,561 +0,0 @@
-#ifndef ASM_X86__PGTABLE_H
-#define ASM_X86__PGTABLE_H
-
-#define FIRST_USER_ADDRESS 0
-
-#define _PAGE_BIT_PRESENT 0 /* is present */
-#define _PAGE_BIT_RW 1 /* writeable */
-#define _PAGE_BIT_USER 2 /* userspace addressable */
-#define _PAGE_BIT_PWT 3 /* page write through */
-#define _PAGE_BIT_PCD 4 /* page cache disabled */
-#define _PAGE_BIT_ACCESSED 5 /* was accessed (raised by CPU) */
-#define _PAGE_BIT_DIRTY 6 /* was written to (raised by CPU) */
-#define _PAGE_BIT_FILE 6
-#define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
-#define _PAGE_BIT_PAT 7 /* on 4KB pages */
-#define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
-#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
-#define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
-#define _PAGE_BIT_UNUSED3 11
-#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
-#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
-#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
-#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
-
-#define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
-#define _PAGE_RW (_AT(pteval_t, 1) << _PAGE_BIT_RW)
-#define _PAGE_USER (_AT(pteval_t, 1) << _PAGE_BIT_USER)
-#define _PAGE_PWT (_AT(pteval_t, 1) << _PAGE_BIT_PWT)
-#define _PAGE_PCD (_AT(pteval_t, 1) << _PAGE_BIT_PCD)
-#define _PAGE_ACCESSED (_AT(pteval_t, 1) << _PAGE_BIT_ACCESSED)
-#define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
-#define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
-#define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
-#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
-#define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
-#define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
-#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
-#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
-#define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
-#define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
-#define __HAVE_ARCH_PTE_SPECIAL
-
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
-#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
-#else
-#define _PAGE_NX (_AT(pteval_t, 0))
-#endif
-
-/* If _PAGE_PRESENT is clear, we use these: */
-#define _PAGE_FILE _PAGE_DIRTY /* nonlinear file mapping,
- * saved PTE; unset:swap */
-#define _PAGE_PROTNONE _PAGE_PSE /* if the user mapped it with PROT_NONE;
- pte_present gives true */
-
-#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
- _PAGE_DIRTY)
-
-/* Set of bits not changed in pte_modify */
-#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
- _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT)
-#define _PAGE_CACHE_WB (0)
-#define _PAGE_CACHE_WC (_PAGE_PWT)
-#define _PAGE_CACHE_UC_MINUS (_PAGE_PCD)
-#define _PAGE_CACHE_UC (_PAGE_PCD | _PAGE_PWT)
-
-#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_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED)
-#define PAGE_COPY PAGE_COPY_NOEXEC
-#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_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
-#define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
-
-#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
-#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
-#define __PAGE_KERNEL_EXEC_NOCACHE (__PAGE_KERNEL_EXEC | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC)
-#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
-#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
-#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-
-#define __PAGE_KERNEL_IO (__PAGE_KERNEL | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_NOCACHE (__PAGE_KERNEL_NOCACHE | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_UC_MINUS (__PAGE_KERNEL_UC_MINUS | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_WC (__PAGE_KERNEL_WC | _PAGE_IOMAP)
-
-#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
-#define PAGE_KERNEL_WC __pgprot(__PAGE_KERNEL_WC)
-#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_UC_MINUS __pgprot(__PAGE_KERNEL_UC_MINUS)
-#define PAGE_KERNEL_EXEC_NOCACHE __pgprot(__PAGE_KERNEL_EXEC_NOCACHE)
-#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_LARGE_NOCACHE __pgprot(__PAGE_KERNEL_LARGE_NOCACHE)
-#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
-#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_VSYSCALL_NOCACHE __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
-
-#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)
-#define PAGE_KERNEL_IO_NOCACHE __pgprot(__PAGE_KERNEL_IO_NOCACHE)
-#define PAGE_KERNEL_IO_UC_MINUS __pgprot(__PAGE_KERNEL_IO_UC_MINUS)
-#define PAGE_KERNEL_IO_WC __pgprot(__PAGE_KERNEL_IO_WC)
-
-/* 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
-
-/*
- * early identity mapping pte attrib macros.
- */
-#ifdef CONFIG_X86_64
-#define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
-#else
-/*
- * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
- * bits are combined, this will alow user to access the high address mapped
- * VDSO in the presence of CONFIG_COMPAT_VDSO
- */
-#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
-#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
-#define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
-#endif
-
-#ifndef __ASSEMBLY__
-
-/*
- * 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))
-
-extern spinlock_t pgd_lock;
-extern struct list_head pgd_list;
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-static inline int pte_dirty(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_DIRTY;
-}
-
-static inline int pte_young(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_ACCESSED;
-}
-
-static inline int pte_write(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_RW;
-}
-
-static inline int pte_file(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_FILE;
-}
-
-static inline int pte_huge(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_PSE;
-}
-
-static inline int pte_global(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_GLOBAL;
-}
-
-static inline int pte_exec(pte_t pte)
-{
- return !(pte_flags(pte) & _PAGE_NX);
-}
-
-static inline int pte_special(pte_t pte)
-{
- return pte_flags(pte) & _PAGE_SPECIAL;
-}
-
-static inline unsigned long pte_pfn(pte_t pte)
-{
- return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
-}
-
-#define pte_page(pte) pfn_to_page(pte_pfn(pte))
-
-static inline int pmd_large(pmd_t pte)
-{
- return (pmd_val(pte) & (_PAGE_PSE | _PAGE_PRESENT)) ==
- (_PAGE_PSE | _PAGE_PRESENT);
-}
-
-static inline pte_t pte_mkclean(pte_t pte)
-{
- return __pte(pte_val(pte) & ~_PAGE_DIRTY);
-}
-
-static inline pte_t pte_mkold(pte_t pte)
-{
- return __pte(pte_val(pte) & ~_PAGE_ACCESSED);
-}
-
-static inline pte_t pte_wrprotect(pte_t pte)
-{
- return __pte(pte_val(pte) & ~_PAGE_RW);
-}
-
-static inline pte_t pte_mkexec(pte_t pte)
-{
- return __pte(pte_val(pte) & ~_PAGE_NX);
-}
-
-static inline pte_t pte_mkdirty(pte_t pte)
-{
- return __pte(pte_val(pte) | _PAGE_DIRTY);
-}
-
-static inline pte_t pte_mkyoung(pte_t pte)
-{
- return __pte(pte_val(pte) | _PAGE_ACCESSED);
-}
-
-static inline pte_t pte_mkwrite(pte_t pte)
-{
- return __pte(pte_val(pte) | _PAGE_RW);
-}
-
-static inline pte_t pte_mkhuge(pte_t pte)
-{
- return __pte(pte_val(pte) | _PAGE_PSE);
-}
-
-static inline pte_t pte_clrhuge(pte_t pte)
-{
- return __pte(pte_val(pte) & ~_PAGE_PSE);
-}
-
-static inline pte_t pte_mkglobal(pte_t pte)
-{
- return __pte(pte_val(pte) | _PAGE_GLOBAL);
-}
-
-static inline pte_t pte_clrglobal(pte_t pte)
-{
- return __pte(pte_val(pte) & ~_PAGE_GLOBAL);
-}
-
-static inline pte_t pte_mkspecial(pte_t pte)
-{
- return __pte(pte_val(pte) | _PAGE_SPECIAL);
-}
-
-extern pteval_t __supported_pte_mask;
-
-static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
-{
- return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) |
- pgprot_val(pgprot)) & __supported_pte_mask);
-}
-
-static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
-{
- return __pmd((((phys_addr_t)page_nr << PAGE_SHIFT) |
- pgprot_val(pgprot)) & __supported_pte_mask);
-}
-
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{
- pteval_t val = pte_val(pte);
-
- /*
- * Chop off the NX bit (if present), and add the NX portion of
- * the newprot (if present):
- */
- val &= _PAGE_CHG_MASK;
- val |= pgprot_val(newprot) & (~_PAGE_CHG_MASK) & __supported_pte_mask;
-
- return __pte(val);
-}
-
-/* mprotect needs to preserve PAT bits when updating vm_page_prot */
-#define pgprot_modify pgprot_modify
-static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
-{
- pgprotval_t preservebits = pgprot_val(oldprot) & _PAGE_CHG_MASK;
- pgprotval_t addbits = pgprot_val(newprot);
- return __pgprot(preservebits | addbits);
-}
-
-#define pte_pgprot(x) __pgprot(pte_flags(x) & PTE_FLAGS_MASK)
-
-#define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)
-
-#ifndef __ASSEMBLY__
-#define __HAVE_PHYS_MEM_ACCESS_PROT
-struct file;
-pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t vma_prot);
-int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t *vma_prot);
-#endif
-
-/* Install a pte for a particular vaddr in kernel space. */
-void set_pte_vaddr(unsigned long vaddr, pte_t pte);
-
-#ifdef CONFIG_X86_32
-extern void native_pagetable_setup_start(pgd_t *base);
-extern void native_pagetable_setup_done(pgd_t *base);
-#else
-static inline void native_pagetable_setup_start(pgd_t *base) {}
-static inline void native_pagetable_setup_done(pgd_t *base) {}
-#endif
-
-extern int arch_report_meminfo(char *page);
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else /* !CONFIG_PARAVIRT */
-#define set_pte(ptep, pte) native_set_pte(ptep, pte)
-#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
-
-#define set_pte_present(mm, addr, ptep, pte) \
- native_set_pte_present(mm, addr, ptep, pte)
-#define set_pte_atomic(ptep, pte) \
- native_set_pte_atomic(ptep, pte)
-
-#define set_pmd(pmdp, pmd) native_set_pmd(pmdp, pmd)
-
-#ifndef __PAGETABLE_PUD_FOLDED
-#define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
-#define pgd_clear(pgd) native_pgd_clear(pgd)
-#endif
-
-#ifndef set_pud
-# define set_pud(pudp, pud) native_set_pud(pudp, pud)
-#endif
-
-#ifndef __PAGETABLE_PMD_FOLDED
-#define pud_clear(pud) native_pud_clear(pud)
-#endif
-
-#define pte_clear(mm, addr, ptep) native_pte_clear(mm, addr, ptep)
-#define pmd_clear(pmd) native_pmd_clear(pmd)
-
-#define pte_update(mm, addr, ptep) do { } while (0)
-#define pte_update_defer(mm, addr, ptep) do { } while (0)
-
-static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
-{
- native_pagetable_setup_start(base);
-}
-
-static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
-{
- native_pagetable_setup_done(base);
-}
-#endif /* CONFIG_PARAVIRT */
-
-#endif /* __ASSEMBLY__ */
-
-#ifdef CONFIG_X86_32
-# include "pgtable_32.h"
-#else
-# include "pgtable_64.h"
-#endif
-
-/*
- * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD]
- *
- * this macro returns the index of the entry in the pgd page which would
- * control the given virtual address
- */
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
-
-/*
- * pgd_offset() returns a (pgd_t *)
- * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
- */
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
-/*
- * a shortcut which implies the use of the kernel's pgd, instead
- * of a process's
- */
-#define pgd_offset_k(address) pgd_offset(&init_mm, (address))
-
-
-#define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
-#define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
-
-#ifndef __ASSEMBLY__
-
-enum {
- PG_LEVEL_NONE,
- PG_LEVEL_4K,
- PG_LEVEL_2M,
- PG_LEVEL_1G,
- PG_LEVEL_NUM
-};
-
-#ifdef CONFIG_PROC_FS
-extern void update_page_count(int level, unsigned long pages);
-#else
-static inline void update_page_count(int level, unsigned long pages) { }
-#endif
-
-/*
- * Helper function that returns the kernel pagetable entry controlling
- * the virtual address 'address'. NULL means no pagetable entry present.
- * NOTE: the return type is pte_t but if the pmd is PSE then we return it
- * as a pte too.
- */
-extern pte_t *lookup_address(unsigned long address, unsigned int *level);
-
-/* local pte updates need not use xchg for locking */
-static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep)
-{
- pte_t res = *ptep;
-
- /* Pure native function needs no input for mm, addr */
- native_pte_clear(NULL, 0, ptep);
- return res;
-}
-
-static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep , pte_t pte)
-{
- native_set_pte(ptep, pte);
-}
-
-#ifndef CONFIG_PARAVIRT
-/*
- * Rules for using pte_update - it must be called after any PTE update which
- * has not been done using the set_pte / clear_pte interfaces. It is used by
- * shadow mode hypervisors to resynchronize the shadow page tables. Kernel PTE
- * updates should either be sets, clears, or set_pte_atomic for P->P
- * transitions, which means this hook should only be called for user PTEs.
- * This hook implies a P->P protection or access change has taken place, which
- * requires a subsequent TLB flush. The notification can optionally be delayed
- * until the TLB flush event by using the pte_update_defer form of the
- * interface, but care must be taken to assure that the flush happens while
- * still holding the same page table lock so that the shadow and primary pages
- * do not become out of sync on SMP.
- */
-#define pte_update(mm, addr, ptep) do { } while (0)
-#define pte_update_defer(mm, addr, ptep) do { } while (0)
-#endif
-
-/*
- * 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.
- */
-struct vm_area_struct;
-
-#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
-extern int ptep_set_access_flags(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep,
- pte_t entry, int dirty);
-
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
-extern int ptep_test_and_clear_young(struct vm_area_struct *vma,
- unsigned long addr, pte_t *ptep);
-
-#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
-extern int ptep_clear_flush_young(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep);
-
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- pte_t pte = native_ptep_get_and_clear(ptep);
- pte_update(mm, addr, ptep);
- return pte;
-}
-
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
-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) {
- /*
- * Full address destruction in progress; paravirt does not
- * care about updates and native needs no locking
- */
- pte = native_local_ptep_get_and_clear(ptep);
- } else {
- pte = ptep_get_and_clear(mm, addr, ptep);
- }
- return pte;
-}
-
-#define __HAVE_ARCH_PTEP_SET_WRPROTECT
-static inline void ptep_set_wrprotect(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- clear_bit(_PAGE_BIT_RW, (unsigned long *)&ptep->pte);
- pte_update(mm, addr, ptep);
-}
-
-/*
- * clone_pgd_range(pgd_t *dst, pgd_t *src, int count);
- *
- * dst - pointer to pgd range anwhere on a pgd page
- * src - ""
- * count - the number of pgds to copy.
- *
- * dst and src can be on the same page, but the range must not overlap,
- * and must not cross a page boundary.
- */
-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
-{
- memcpy(dst, src, count * sizeof(pgd_t));
-}
-
-
-#include <asm-generic/pgtable.h>
-#endif /* __ASSEMBLY__ */
-
-#endif /* ASM_X86__PGTABLE_H */