1/**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12#ifndef _ASM_GENERIC_PGTABLE_H 13#define _ASM_GENERIC_PGTABLE_H 14 15#ifndef __HAVE_ARCH_PTEP_ESTABLISH 16 17#ifndef __HAVE_ARCH_SET_PTE_ATOMIC 18#define ptep_establish(__vma, __address, __ptep, __entry) do { set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); flush_tlb_page(__vma, __address); } while (0) 19#else 20#define ptep_establish(__vma, __address, __ptep, __entry) do { set_pte_atomic(__ptep, __entry); flush_tlb_page(__vma, __address); } while (0) 21#endif 22#endif 23 24#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS 25 26#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) do { set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); flush_tlb_page(__vma, __address); } while (0) 27#endif 28 29#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG 30#define ptep_test_and_clear_young(__vma, __address, __ptep) ({ pte_t __pte = *(__ptep); int r = 1; if (!pte_young(__pte)) r = 0; else set_pte_at((__vma)->vm_mm, (__address), (__ptep), pte_mkold(__pte)); r; }) 31#endif 32 33#ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH 34#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; }) 35#endif 36 37#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY 38#define ptep_test_and_clear_dirty(__vma, __address, __ptep) ({ pte_t __pte = *__ptep; int r = 1; if (!pte_dirty(__pte)) r = 0; else set_pte_at((__vma)->vm_mm, (__address), (__ptep), pte_mkclean(__pte)); r; }) 39#endif 40 41#ifndef __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH 42#define ptep_clear_flush_dirty(__vma, __address, __ptep) ({ int __dirty; __dirty = ptep_test_and_clear_dirty(__vma, __address, __ptep); if (__dirty) flush_tlb_page(__vma, __address); __dirty; }) 43#endif 44 45#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR 46#define ptep_get_and_clear(__mm, __address, __ptep) ({ pte_t __pte = *(__ptep); pte_clear((__mm), (__address), (__ptep)); __pte; }) 47#endif 48 49#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL 50#define ptep_get_and_clear_full(__mm, __address, __ptep, __full) ({ pte_t __pte; __pte = ptep_get_and_clear((__mm), (__address), (__ptep)); __pte; }) 51#endif 52 53#ifndef __HAVE_ARCH_PTE_CLEAR_FULL 54#define pte_clear_full(__mm, __address, __ptep, __full) do { pte_clear((__mm), (__address), (__ptep)); } while (0) 55#endif 56 57#ifndef __HAVE_ARCH_PTEP_CLEAR_FLUSH 58#define ptep_clear_flush(__vma, __address, __ptep) ({ pte_t __pte; __pte = ptep_get_and_clear((__vma)->vm_mm, __address, __ptep); flush_tlb_page(__vma, __address); __pte; }) 59#endif 60 61#ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT 62struct mm_struct; 63#endif 64#ifndef __HAVE_ARCH_PTE_SAME 65#define pte_same(A,B) (pte_val(A) == pte_val(B)) 66#endif 67#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY 68#define page_test_and_clear_dirty(page) (0) 69#define pte_maybe_dirty(pte) pte_dirty(pte) 70#else 71#define pte_maybe_dirty(pte) (1) 72#endif 73#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG 74#define page_test_and_clear_young(page) (0) 75#endif 76#ifndef __HAVE_ARCH_PGD_OFFSET_GATE 77#define pgd_offset_gate(mm, addr) pgd_offset(mm, addr) 78#endif 79#ifndef __HAVE_ARCH_LAZY_MMU_PROT_UPDATE 80#define lazy_mmu_prot_update(pte) do { } while (0) 81#endif 82#ifndef __HAVE_ARCH_MOVE_PTE 83#define move_pte(pte, prot, old_addr, new_addr) (pte) 84#endif 85#define pgd_addr_end(addr, end) ({ unsigned long __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK; (__boundary - 1 < (end) - 1)? __boundary: (end); }) 86#ifndef pud_addr_end 87#define pud_addr_end(addr, end) ({ unsigned long __boundary = ((addr) + PUD_SIZE) & PUD_MASK; (__boundary - 1 < (end) - 1)? __boundary: (end); }) 88#endif 89#ifndef pmd_addr_end 90#define pmd_addr_end(addr, end) ({ unsigned long __boundary = ((addr) + PMD_SIZE) & PMD_MASK; (__boundary - 1 < (end) - 1)? __boundary: (end); }) 91#endif 92#ifndef __ASSEMBLY__ 93 94#endif 95#endif 96