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