175 lines
7.4 KiB
C
175 lines
7.4 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _I386_PGTABLE_H
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#define _I386_PGTABLE_H
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#ifndef __ASSEMBLY__
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#include <asm/processor.h>
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#include <asm/fixmap.h>
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#include <linux/threads.h>
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#include <asm/paravirt.h>
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#include <linux/bitops.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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struct mm_struct;
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struct vm_area_struct;
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#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
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#include <asm/pgtable-2level-defs.h>
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#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
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#define PGDIR_MASK (~(PGDIR_SIZE-1))
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#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
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#define FIRST_USER_ADDRESS 0
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#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT)
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#define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS)
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#define TWOLEVEL_PGDIR_SHIFT 22
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#define BOOT_USER_PGD_PTRS (__PAGE_OFFSET >> TWOLEVEL_PGDIR_SHIFT)
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#define BOOT_KERNEL_PGD_PTRS (1024-BOOT_USER_PGD_PTRS)
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#define VMALLOC_OFFSET (8*1024*1024)
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#define VMALLOC_START (((unsigned long) high_memory + 2*VMALLOC_OFFSET-1) & ~(VMALLOC_OFFSET-1))
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#define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE)
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#define _PAGE_BIT_PRESENT 0
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#define _PAGE_BIT_RW 1
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#define _PAGE_BIT_USER 2
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#define _PAGE_BIT_PWT 3
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#define _PAGE_BIT_PCD 4
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#define _PAGE_BIT_ACCESSED 5
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#define _PAGE_BIT_DIRTY 6
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#define _PAGE_BIT_PSE 7
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#define _PAGE_BIT_GLOBAL 8
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#define _PAGE_BIT_UNUSED1 9
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#define _PAGE_BIT_UNUSED2 10
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#define _PAGE_BIT_UNUSED3 11
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#define _PAGE_BIT_NX 63
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#define _PAGE_PRESENT 0x001
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#define _PAGE_RW 0x002
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#define _PAGE_USER 0x004
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#define _PAGE_PWT 0x008
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#define _PAGE_PCD 0x010
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#define _PAGE_ACCESSED 0x020
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#define _PAGE_DIRTY 0x040
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#define _PAGE_PSE 0x080
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#define _PAGE_GLOBAL 0x100
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#define _PAGE_UNUSED1 0x200
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#define _PAGE_UNUSED2 0x400
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#define _PAGE_UNUSED3 0x800
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#define _PAGE_FILE 0x040
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#define _PAGE_PROTNONE 0x080
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#define _PAGE_NX 0
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#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
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#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY)
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#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
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#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
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#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
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#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
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#define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX)
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#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
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#define PAGE_COPY PAGE_COPY_NOEXEC
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#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX)
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#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
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#define _PAGE_KERNEL (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_NX)
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#define _PAGE_KERNEL_EXEC (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
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#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
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#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
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#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD)
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#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
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#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
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#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
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#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
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#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
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#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
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#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
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#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
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#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
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#define __P000 PAGE_NONE
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#define __P001 PAGE_READONLY
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#define __P010 PAGE_COPY
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#define __P011 PAGE_COPY
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#define __P100 PAGE_READONLY_EXEC
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#define __P101 PAGE_READONLY_EXEC
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#define __P110 PAGE_COPY_EXEC
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#define __P111 PAGE_COPY_EXEC
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#define __S000 PAGE_NONE
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#define __S001 PAGE_READONLY
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#define __S010 PAGE_SHARED
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#define __S011 PAGE_SHARED
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#define __S100 PAGE_READONLY_EXEC
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#define __S101 PAGE_READONLY_EXEC
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#define __S110 PAGE_SHARED_EXEC
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#define __S111 PAGE_SHARED_EXEC
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#undef TEST_ACCESS_OK
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#define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
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#define pmd_none(x) (!(unsigned long)pmd_val(x))
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#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
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#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
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#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
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#include <asm/pgtable-2level.h>
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#define pte_update(mm, addr, ptep) do { } while (0)
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#define pte_update_defer(mm, addr, ptep) do { } while (0)
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#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
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#define ptep_set_access_flags(vma, address, ptep, entry, dirty) ({ int __changed = !pte_same(*(ptep), entry); if (__changed && dirty) { (ptep)->pte_low = (entry).pte_low; pte_update_defer((vma)->vm_mm, (address), (ptep)); flush_tlb_page(vma, address); } __changed; })
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#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
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#define ptep_test_and_clear_young(vma, addr, ptep) ({ int __ret = 0; if (pte_young(*(ptep))) __ret = test_and_clear_bit(_PAGE_BIT_ACCESSED, &(ptep)->pte_low); if (__ret) pte_update((vma)->vm_mm, addr, ptep); __ret; })
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#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
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#define ptep_clear_flush_young(vma, address, ptep) ({ int __young; __young = ptep_test_and_clear_young((vma), (address), (ptep)); if (__young) flush_tlb_page(vma, address); __young; })
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#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
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#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
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#define __HAVE_ARCH_PTEP_SET_WRPROTECT
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#define pgprot_noncached(prot) ((boot_cpu_data.x86 > 3) ? (__pgprot(pgprot_val(prot) | _PAGE_PCD | _PAGE_PWT)) : (prot))
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#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
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#define pmd_large(pmd) ((pmd_val(pmd) & (_PAGE_PSE|_PAGE_PRESENT)) == (_PAGE_PSE|_PAGE_PRESENT))
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#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
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#define pgd_index_k(addr) pgd_index(addr)
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#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
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#define pgd_offset_k(address) pgd_offset(&init_mm, address)
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#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
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#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
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#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
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#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
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#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
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#define pte_offset_map(dir, address) ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
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#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
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#define pte_unmap(pte) do { } while (0)
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#define pte_unmap_nested(pte) do { } while (0)
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#define kpte_clear_flush(ptep, vaddr) do { pte_clear(&init_mm, vaddr, ptep); __flush_tlb_one(vaddr); } while (0)
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#define update_mmu_cache(vma,address,pte) do { } while (0)
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#endif
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#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) remap_pfn_range(vma, vaddr, pfn, size, prot)
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#include <asm-generic/pgtable.h>
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#endif
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