diff options
Diffstat (limited to 'libc/kernel/common/asm-generic/pgtable.h')
-rw-r--r-- | libc/kernel/common/asm-generic/pgtable.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/libc/kernel/common/asm-generic/pgtable.h b/libc/kernel/common/asm-generic/pgtable.h new file mode 100644 index 0000000..a21cdba --- /dev/null +++ b/libc/kernel/common/asm-generic/pgtable.h @@ -0,0 +1,95 @@ +/**************************************************************************** + **************************************************************************** + *** + *** This header was automatically generated from a Linux kernel header + *** of the same name, to make information necessary for userspace to + *** call into the kernel available to libc. It contains only constants, + *** structures, and macros generated from the original header, and thus, + *** contains no copyrightable information. + *** + **************************************************************************** + ****************************************************************************/ +#ifndef _ASM_GENERIC_PGTABLE_H +#define _ASM_GENERIC_PGTABLE_H + +#ifndef __HAVE_ARCH_PTEP_ESTABLISH + +#ifndef __HAVE_ARCH_SET_PTE_ATOMIC +#define ptep_establish(__vma, __address, __ptep, __entry) do { set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); flush_tlb_page(__vma, __address); } while (0) +#else +#define ptep_establish(__vma, __address, __ptep, __entry) do { set_pte_atomic(__ptep, __entry); flush_tlb_page(__vma, __address); } while (0) +#endif +#endif + +#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS + +#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) +#endif + +#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG +#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; }) +#endif + +#ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH +#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; }) +#endif + +#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY +#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; }) +#endif + +#ifndef __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH +#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; }) +#endif + +#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR +#define ptep_get_and_clear(__mm, __address, __ptep) ({ pte_t __pte = *(__ptep); pte_clear((__mm), (__address), (__ptep)); __pte; }) +#endif + +#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL +#define ptep_get_and_clear_full(__mm, __address, __ptep, __full) ({ pte_t __pte; __pte = ptep_get_and_clear((__mm), (__address), (__ptep)); __pte; }) +#endif + +#ifndef __HAVE_ARCH_PTE_CLEAR_FULL +#define pte_clear_full(__mm, __address, __ptep, __full) do { pte_clear((__mm), (__address), (__ptep)); } while (0) +#endif + +#ifndef __HAVE_ARCH_PTEP_CLEAR_FLUSH +#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; }) +#endif + +#ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT +struct mm_struct; +#endif +#ifndef __HAVE_ARCH_PTE_SAME +#define pte_same(A,B) (pte_val(A) == pte_val(B)) +#endif +#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY +#define page_test_and_clear_dirty(page) (0) +#define pte_maybe_dirty(pte) pte_dirty(pte) +#else +#define pte_maybe_dirty(pte) (1) +#endif +#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG +#define page_test_and_clear_young(page) (0) +#endif +#ifndef __HAVE_ARCH_PGD_OFFSET_GATE +#define pgd_offset_gate(mm, addr) pgd_offset(mm, addr) +#endif +#ifndef __HAVE_ARCH_LAZY_MMU_PROT_UPDATE +#define lazy_mmu_prot_update(pte) do { } while (0) +#endif +#ifndef __HAVE_ARCH_MOVE_PTE +#define move_pte(pte, prot, old_addr, new_addr) (pte) +#endif +#define pgd_addr_end(addr, end) ({ unsigned long __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK; (__boundary - 1 < (end) - 1)? __boundary: (end); }) +#ifndef pud_addr_end +#define pud_addr_end(addr, end) ({ unsigned long __boundary = ((addr) + PUD_SIZE) & PUD_MASK; (__boundary - 1 < (end) - 1)? __boundary: (end); }) +#endif +#ifndef pmd_addr_end +#define pmd_addr_end(addr, end) ({ unsigned long __boundary = ((addr) + PMD_SIZE) & PMD_MASK; (__boundary - 1 < (end) - 1)? __boundary: (end); }) +#endif +#ifndef __ASSEMBLY__ + +#endif +#endif |