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 62 struct 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