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 _I386_PGTABLE_2LEVEL_H 13 #define _I386_PGTABLE_2LEVEL_H 14 15 #define pte_ERROR(e) printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low) 16 #define pgd_ERROR(e) printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) 17 18 #define set_pte(pteptr, pteval) native_set_pte(pteptr, pteval) 19 #define set_pte_at(mm,addr,ptep,pteval) native_set_pte_at(mm, addr, ptep, pteval) 20 #define set_pmd(pmdptr, pmdval) native_set_pmd(pmdptr, pmdval) 21 #define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval) 22 #define set_pte_present(mm,addr,ptep,pteval) set_pte_at(mm,addr,ptep,pteval) 23 #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) 24 #define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) 25 #define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp) 26 #define pte_page(x) pfn_to_page(pte_pfn(x)) 27 #define pte_none(x) (!(x).pte_low) 28 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) 29 #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) 30 #define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) 31 #define PTE_FILE_MAX_BITS 29 32 #define pte_to_pgoff(pte) ((((pte).pte_low >> 1) & 0x1f ) + (((pte).pte_low >> 8) << 5 )) 33 #define pgoff_to_pte(off) ((pte_t) { (((off) & 0x1f) << 1) + (((off) >> 5) << 8) + _PAGE_FILE }) 34 #define __swp_type(x) (((x).val >> 1) & 0x1f) 35 #define __swp_offset(x) ((x).val >> 8) 36 #define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 1) | ((offset) << 8) }) 37 #define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low }) 38 #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) 39 #endif 40