mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 10:01:43 +00:00
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
|
/*
|
||
|
|
* 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 */
|