diff options
author | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-08-05 13:35:07 +0200 |
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committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2008-08-05 13:35:07 +0200 |
commit | 84db8d7cdb072866f5a6c6ac2c9a74c5c48dd22f (patch) | |
tree | 7f10cc33bca606abd1547ae90d90362134a35332 /arch/avr32/include/asm/pgtable-2level.h | |
parent | 2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff) |
avr32: Move include/asm-avr32 to arch/avr32/include/asm
Leaving include/asm/arch alone for now.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32/include/asm/pgtable-2level.h')
-rw-r--r-- | arch/avr32/include/asm/pgtable-2level.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/pgtable-2level.h b/arch/avr32/include/asm/pgtable-2level.h new file mode 100644 index 00000000000..425dd567b5b --- /dev/null +++ b/arch/avr32/include/asm/pgtable-2level.h @@ -0,0 +1,47 @@ +/* + * 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 */ |