2 * Copyright (C) 2004-2006 Atmel Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 #ifndef __ASM_AVR32_PGTABLE_2LEVEL_H
9 #define __ASM_AVR32_PGTABLE_2LEVEL_H
11 #define __ARCH_USE_5LEVEL_HACK
12 #include <asm-generic/pgtable-nopmd.h>
15 * Traditional 2-level paging structure
17 #define PGDIR_SHIFT 22
18 #define PTRS_PER_PGD 1024
20 #define PTRS_PER_PTE 1024
23 #define pte_ERROR(e) \
24 printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
25 #define pgd_ERROR(e) \
26 printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
29 * Certain architectures need to do special things when PTEs
30 * within a page table are directly modified. Thus, the following
31 * hook is made available.
33 #define set_pte(pteptr, pteval) (*(pteptr) = pteval)
34 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep, pteval)
37 * (pmds are folded into pgds so this doesn't get actually called,
38 * but the define is needed for a generic inline function.)
40 #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
42 #define pte_pfn(x) ((unsigned long)(((x).pte >> PAGE_SHIFT)))
43 #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
44 #define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
46 #endif /* !__ASSEMBLY__ */
48 #endif /* __ASM_AVR32_PGTABLE_2LEVEL_H */